/* roulang page: index */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 56px;
            --card-gutter: 22px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 64px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        @media (max-width: 768px) {
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 26px;
            }
            .section-desc {
                font-size: 14px;
            }
        }

        .text-accent {
            color: var(--accent-primary);
        }
        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }

        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            box-shadow: var(--shadow-glow);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: inline-flex;
            align-items: center;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-base), background-color var(--transition-base);
            letter-spacing: 0.02em;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--text-primary);
            background-color: rgba(242, 238, 244, 0.06);
        }

        .nav-menu li a.active {
            color: var(--accent-primary);
            background-color: rgba(230, 46, 58, 0.1);
            font-weight: 600;
        }

        .nav-locator {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border: 1px solid var(--border-strong);
            border-radius: 20px;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            background: transparent;
            transition: all var(--transition-base);
            white-space: nowrap;
            position: relative;
        }

        .nav-locator:hover,
        .nav-locator.open {
            border-color: var(--accent-primary);
            color: var(--text-primary);
            background-color: rgba(230, 46, 58, 0.08);
        }

        .nav-locator .locator-icon {
            font-size: 16px;
            color: var(--accent-primary);
        }

        .locator-dropdown {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            min-width: 200px;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card-hover);
            padding: 8px;
            display: none;
            z-index: 1050;
        }

        .nav-locator.open .locator-dropdown {
            display: block;
        }

        .locator-dropdown .locator-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            font-size: 14px;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .locator-dropdown .locator-item:hover {
            background-color: rgba(242, 238, 244, 0.06);
            color: var(--text-primary);
        }

        .locator-dropdown .locator-item i {
            color: var(--accent-secondary);
            width: 16px;
            text-align: center;
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-sm);
            color: var(--text-primary);
            font-size: 20px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .navbar-toggler:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        @media (max-width: 1024px) {
            .navbar-toggler {
                display: flex;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: calc(100% + 1px);
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-surface);
                border: 1px solid var(--border-strong);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 16px;
                gap: 4px;
                box-shadow: var(--shadow-card-hover);
                max-height: 70vh;
                overflow-y: auto;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-menu li a {
                width: 100%;
                padding: 12px 16px;
                font-size: 15px;
            }
            .nav-locator {
                margin-left: auto;
                margin-right: 12px;
            }
            .nav-locator .locator-text {
                display: none;
            }
        }

        @media (max-width: 480px) {
            .navbar-brand {
                font-size: 18px;
            }
            .navbar-brand .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
            .nav-locator {
                padding: 6px 12px;
                font-size: 12px;
            }
        }

        /* Hero */
        .hero-section {
            position: relative;
            padding-top: 130px;
            padding-bottom: 60px;
            background: var(--bg-base);
            overflow: hidden;
            min-height: 100vh;
            display: flex;
            align-items: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background:
                radial-gradient(ellipse at 30% 20%, rgba(230, 46, 58, 0.16) 0%, transparent 55%),
                radial-gradient(ellipse at 75% 70%, rgba(245, 166, 35, 0.08) 0%, transparent 45%);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            top: 0;
            right: 0;
            width: 80px;
            height: 80px;
            border-top: 2px solid rgba(230, 46, 58, 0.35);
            border-right: 2px solid rgba(230, 46, 58, 0.35);
            border-radius: 0 0 0 12px;
            pointer-events: none;
        }

        .hero-status-bar {
            display: inline-flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 20px;
            padding: 10px 20px;
            background: rgba(23, 20, 28, 0.75);
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 13px;
            color: var(--text-secondary);
            margin-bottom: 28px;
            position: relative;
            z-index: 2;
        }

        .hero-status-bar .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--ok);
            animation: pulse-dot 2.2s infinite;
        }

        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.5;
                transform: scale(1.25);
            }
        }

        .hero-status-bar .status-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
        }

        .hero-status-bar .status-item strong {
            color: var(--text-primary);
            font-weight: 700;
            font-family: var(--font-num);
            font-variant-numeric: tabular-nums;
        }

        .hero-title {
            font-size: 60px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.03em;
            color: var(--text-primary);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
            max-width: 700px;
        }

        .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 28px;
            max-width: 520px;
            position: relative;
            z-index: 2;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            position: relative;
            z-index: 2;
        }

        .hero-icon-matrix {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 14px;
            max-width: 360px;
            margin-top: 32px;
            position: relative;
            z-index: 2;
        }

        .hero-icon-matrix .matrix-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
            padding: 18px 12px;
            background: rgba(23, 20, 28, 0.65);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
            text-align: center;
        }

        .hero-icon-matrix .matrix-item:hover {
            border-color: var(--accent-primary);
            background: rgba(30, 26, 36, 0.9);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .hero-icon-matrix .matrix-item i {
            font-size: 24px;
            color: var(--accent-primary);
        }

        .hero-icon-matrix .matrix-item span {
            font-size: 12px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .hero-section {
                min-height: auto;
                padding-top: 110px;
                padding-bottom: 48px;
            }
            .hero-title {
                font-size: 34px;
                letter-spacing: -0.02em;
            }
            .hero-subtitle {
                font-size: 15px;
            }
            .hero-status-bar {
                font-size: 12px;
                gap: 4px 12px;
                padding: 8px 14px;
            }
            .hero-icon-matrix {
                grid-template-columns: repeat(2, 1fr);
                max-width: 280px;
            }
        }

        /* 通用按钮 */
        .btn-custom-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 14px 28px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            line-height: 1;
        }

        .btn-custom-primary:hover {
            background: var(--accent-deep);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 46, 58, 0.3);
        }

        .btn-custom-primary:active {
            transform: translateY(0);
        }

        .btn-custom-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--accent-secondary);
            font-weight: 600;
            font-size: 15px;
            padding: 14px 24px;
            border-radius: 10px;
            border: 1px solid rgba(245, 166, 35, 0.5);
            cursor: pointer;
            transition: all var(--transition-base);
            letter-spacing: 0.02em;
            line-height: 1;
        }

        .btn-custom-secondary:hover {
            background: rgba(245, 166, 35, 0.1);
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
            transform: translateY(-2px);
        }

        .btn-text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-secondary);
            font-weight: 500;
            font-size: 14px;
            transition: all var(--transition-base);
            cursor: pointer;
            background: none;
            border: none;
            padding: 0;
        }

        .btn-text-link:hover {
            color: var(--accent-primary);
            text-decoration: underline;
            text-underline-offset: 3px;
        }

        .btn-custom-sm {
            padding: 10px 18px;
            font-size: 13px;
        }

        /* KPI看板 */
        .kpi-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .kpi-item {
            text-align: center;
            padding: 24px 16px;
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
        }

        .kpi-item:hover {
            border-color: var(--accent-primary);
            transform: translateY(-3px);
            box-shadow: var(--shadow-card);
        }

        .kpi-item .kpi-number {
            font-size: 38px;
            font-weight: 800;
            font-family: var(--font-num);
            font-variant-numeric: tabular-nums;
            color: var(--accent-primary);
            line-height: 1.2;
            letter-spacing: -0.02em;
        }

        .kpi-item .kpi-label {
            font-size: 13px;
            color: var(--text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .kpi-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .kpi-item .kpi-number {
                font-size: 28px;
            }
        }

        /* 服务矩阵 */
        .service-matrix {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .service-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            transition: all var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            opacity: 0;
            transition: opacity var(--transition-base);
        }

        .service-card:hover {
            border-color: var(--accent-primary);
            background: var(--bg-surface-hover);
            transform: translateY(-5px);
            box-shadow: var(--shadow-card-hover);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-card .service-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: rgba(230, 46, 58, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            color: var(--accent-primary);
            margin-bottom: 16px;
        }

        .service-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .service-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        @media (max-width: 1024px) {
            .service-matrix {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .service-matrix {
                grid-template-columns: 1fr;
            }
        }

        /* 结果对比 */
        .comparison-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 0;
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-surface);
        }

        .comparison-col {
            padding: 36px 32px;
        }

        .comparison-col.comparison-us {
            background: rgba(230, 46, 58, 0.04);
            border-right: 2px solid var(--accent-primary);
        }

        .comparison-col.comparison-them {
            background: rgba(124, 114, 124, 0.04);
        }

        .comparison-col h4 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .comparison-col.comparison-us h4 {
            color: var(--accent-primary);
        }

        .comparison-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .comparison-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 12px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        .comparison-list li:last-child {
            border-bottom: none;
        }

        .comparison-list li i {
            font-size: 16px;
            margin-top: 3px;
            flex-shrink: 0;
        }

        .comparison-list li i.fa-check-circle {
            color: var(--ok);
        }
        .comparison-list li i.fa-minus-circle {
            color: var(--text-muted);
        }

        @media (max-width: 768px) {
            .comparison-wrapper {
                grid-template-columns: 1fr;
            }
            .comparison-col.comparison-us {
                border-right: none;
                border-bottom: 2px solid var(--accent-primary);
            }
        }

        /* 里程碑 */
        .milestone-timeline {
            display: flex;
            flex-direction: column;
            gap: 0;
            position: relative;
            padding-left: 24px;
        }

        .milestone-timeline::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            border-radius: 1px;
        }

        .milestone-item {
            position: relative;
            padding: 20px 24px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            transition: all var(--transition-base);
        }

        .milestone-item::before {
            content: '';
            position: absolute;
            left: -28px;
            top: 28px;
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: var(--accent-primary);
            border: 2px solid var(--bg-base);
            box-shadow: 0 0 0 2px var(--accent-primary);
        }

        .milestone-item:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .milestone-item .version-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(230, 46, 58, 0.14);
            border-radius: 6px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-primary);
            margin-bottom: 8px;
            margin-right: 8px;
        }

        .milestone-item .version-date {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .milestone-item h5 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 8px 0 4px;
        }

        .milestone-item p {
            font-size: 14px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.7;
        }

        /* 资讯卡片 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .news-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .news-card:hover {
            border-color: var(--accent-primary);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .news-card .news-cover {
            width: 100%;
            height: 160px;
            object-fit: cover;
        }

        .news-card .news-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .news-card .news-badge {
            display: inline-block;
            padding: 3px 10px;
            background: rgba(230, 46, 58, 0.12);
            border-radius: 5px;
            font-size: 12px;
            font-weight: 600;
            color: var(--accent-primary);
            margin-bottom: 8px;
            align-self: flex-start;
        }

        .news-card h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.5;
            margin-bottom: 6px;
        }

        .news-card .news-date {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: auto;
            padding-top: 8px;
        }

        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 平台保障 */
        .assurance-bar {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: center;
            gap: 12px 28px;
            padding: 20px 16px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
        }

        .assurance-item {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .assurance-item:hover {
            color: var(--text-primary);
        }

        .assurance-item i {
            font-size: 16px;
            color: var(--accent-secondary);
        }

        /* FAQ */
        .accordion-custom .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 10px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .accordion-custom .accordion-item:hover {
            border-color: var(--border-strong);
        }

        .accordion-custom .accordion-item.active {
            border-left: 3px solid var(--accent-primary);
        }

        .accordion-custom .accordion-header {
            margin: 0;
        }

        .accordion-custom .accordion-button {
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            padding: 18px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: all var(--transition-base);
            border-radius: 0;
        }

        .accordion-custom .accordion-button:hover {
            background: rgba(242, 238, 244, 0.03);
        }

        .accordion-custom .accordion-button:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.4);
            outline-offset: -2px;
        }

        .accordion-custom .accordion-icon {
            flex-shrink: 0;
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(230, 46, 58, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 12px;
            color: var(--accent-primary);
            transition: transform var(--transition-base);
        }

        .accordion-custom .accordion-item.active .accordion-icon {
            transform: rotate(90deg);
        }

        .accordion-custom .accordion-collapse {
            max-height: 0;
            overflow: hidden;
            transition: max-height 280ms ease-out;
        }

        .accordion-custom .accordion-body {
            padding: 0 20px 18px;
            font-size: 14.5px;
            line-height: 1.75;
            color: var(--text-secondary);
        }

        /* 品牌介绍 */
        .brand-intro-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .brand-intro-wrapper {
            display: grid;
            grid-template-columns: 1fr 380px;
            gap: 40px;
            align-items: center;
        }

        .brand-intro-text {
            border-left: 4px solid var(--accent-primary);
            padding-left: 24px;
        }

        .brand-intro-text h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.01em;
        }

        .brand-intro-text p {
            font-size: 15px;
            line-height: 1.9;
            color: var(--text-secondary);
            margin-bottom: 12px;
        }

        .brand-intro-text p:last-child {
            margin-bottom: 0;
        }

        .brand-intro-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 2px solid var(--border-strong);
            box-shadow: var(--shadow-card);
        }

        .brand-intro-image img {
            width: 100%;
            height: 280px;
            object-fit: cover;
        }

        @media (max-width: 768px) {
            .brand-intro-wrapper {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .brand-intro-text {
                padding-left: 16px;
            }
            .brand-intro-image img {
                height: 180px;
            }
        }

        /* 专题入口 */
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .topic-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            transition: all var(--transition-base);
            cursor: pointer;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 8px;
        }

        .topic-card:hover {
            border-color: var(--accent-primary);
            background: var(--bg-surface-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
        }

        .topic-card .topic-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(230, 46, 58, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-primary);
            margin-bottom: 4px;
        }

        .topic-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 玩家评价 */
        .testimonial-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .testimonial-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            position: relative;
            border-left: 4px solid var(--accent-primary);
            transition: all var(--transition-base);
        }

        .testimonial-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .testimonial-stars {
            color: var(--accent-secondary);
            font-size: 14px;
            margin-bottom: 12px;
            letter-spacing: 2px;
        }

        .testimonial-text {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-secondary);
            margin-bottom: 16px;
        }

        .testimonial-author {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .testimonial-author .author-name {
            font-weight: 600;
            color: var(--text-primary);
        }

        .testimonial-author .server-tag {
            display: inline-block;
            padding: 2px 8px;
            background: rgba(230, 46, 58, 0.1);
            border-radius: 4px;
            font-size: 12px;
            color: var(--accent-primary);
        }

        @media (max-width: 768px) {
            .testimonial-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
        }

        /* 新手引导 */
        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }

        .step-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 18px;
            text-align: center;
            position: relative;
            transition: all var(--transition-base);
        }

        .step-item:hover {
            border-color: var(--accent-primary);
            transform: translateY(-3px);
        }

        .step-number {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--accent-primary);
            color: #fff;
            font-weight: 800;
            font-size: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 12px;
            font-family: var(--font-num);
        }

        .step-item h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }

        .step-item p {
            font-size: 13px;
            color: var(--text-secondary);
            margin: 0;
            line-height: 1.6;
        }

        @media (max-width: 1024px) {
            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 520px) {
            .steps-grid {
                grid-template-columns: 1fr;
            }
        }

        /* 多端入口 */
        .devices-row {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            justify-content: center;
        }

        .device-btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 24px;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: 12px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
        }

        .device-btn:hover {
            border-color: var(--accent-primary);
            color: var(--text-primary);
            background: rgba(230, 46, 58, 0.06);
            transform: translateY(-2px);
        }

        .device-btn i {
            font-size: 18px;
            color: var(--accent-primary);
        }

        /* 社区风采 */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }

        .community-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .community-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .community-card img {
            width: 100%;
            height: 180px;
            object-fit: cover;
        }

        .community-card .community-info {
            padding: 14px 18px;
        }

        .community-card .player-name {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .community-card .work-name {
            font-size: 13px;
            color: var(--text-secondary);
        }

        @media (max-width: 768px) {
            .community-grid {
                grid-template-columns: 1fr;
            }
        }

        /* CTA转化带 */
        .cta-banner {
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.12) 0%, rgba(245, 166, 35, 0.06) 100%);
            border: 1px solid rgba(230, 46, 58, 0.3);
            border-radius: var(--radius-lg);
            padding: 48px 32px;
            text-align: center;
        }

        .cta-banner h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
        }

        .cta-banner p {
            font-size: 15px;
            color: var(--text-secondary);
            margin-bottom: 24px;
        }

        /* 底部固定转化条 */
        .bottom-float-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(14, 13, 18, 0.9);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-top: 1px solid var(--border-strong);
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            height: 64px;
            gap: 20px;
            transition: transform 300ms ease-out;
        }

        .bottom-float-bar.hidden {
            transform: translateY(100%);
        }

        .bottom-float-bar .float-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-primary);
        }

        .bottom-float-bar .float-brand .brand-mark {
            width: 28px;
            height: 28px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 800;
        }

        .bottom-float-bar .float-text {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .bottom-float-bar .float-close {
            position: absolute;
            top: 4px;
            right: 12px;
            background: none;
            border: none;
            color: var(--text-muted);
            font-size: 14px;
            cursor: pointer;
            padding: 4px;
            line-height: 1;
            transition: color var(--transition-base);
        }

        .bottom-float-bar .float-close:hover {
            color: var(--text-primary);
        }

        @media (max-width: 768px) {
            .bottom-float-bar {
                height: 70px;
                padding: 10px 16px;
                gap: 12px;
                flex-wrap: wrap;
            }
            .bottom-float-bar .float-text {
                display: none;
            }
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 56px 0 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .footer-brand .footer-logo .brand-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
            color: #fff;
            font-weight: 800;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
        }

        .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            cursor: pointer;
            transition: color var(--transition-base);
        }

        .footer-locator:hover {
            color: var(--accent-primary);
        }

        .footer-col h5 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--accent-primary);
        }

        .footer-bottom {
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-bottom a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .footer-bottom a:hover {
            color: var(--accent-primary);
        }

        .footer-bottom .footer-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        /* 背景装饰区块 */
        .bg-pattern-section {
            position: relative;
        }

        .bg-pattern-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: radial-gradient(ellipse at 10% 20%, rgba(230, 46, 58, 0.06) 0%, transparent 40%);
            pointer-events: none;
        }

        .bg-pattern-section .container {
            position: relative;
            z-index: 1;
        }

/* roulang page: category1 */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 56px;
            --card-gutter: 22px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 64px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent-primary);
        }

        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }

        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }

        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
            box-shadow: 0 4px 12px rgba(230, 46, 58, 0.3);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            width: 40px;
            height: 36px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            transition: border-color var(--transition-base), background var(--transition-base);
        }

        .navbar-toggler:hover {
            border-color: var(--accent-primary);
            background: rgba(230, 46, 58, 0.1);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 26px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: color var(--transition-base);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--text-primary);
        }

        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            left: 0;
            right: 0;
            bottom: -8px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .nav-locator {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--text-secondary);
            font-size: 13px;
            cursor: pointer;
            padding: 6px 12px;
            border: 1px solid var(--border);
            border-radius: 20px;
            background: rgba(23, 20, 28, 0.6);
            transition: border-color var(--transition-base), color var(--transition-base), background var(--transition-base);
            position: relative;
            white-space: nowrap;
        }

        .nav-locator:hover {
            border-color: var(--accent-secondary);
            color: var(--text-primary);
            background: rgba(245, 166, 35, 0.08);
        }

        .locator-icon {
            color: var(--accent-secondary);
            font-size: 14px;
        }

        .locator-panel {
            position: absolute;
            top: calc(100% + 12px);
            right: 0;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card-hover);
            padding: 8px;
            min-width: 180px;
            display: none;
            z-index: 1050;
        }

        .locator-panel.open {
            display: block;
            animation: fadeInUp 0.2s ease-out;
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .locator-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 14px;
            border-radius: var(--radius-sm);
            font-size: 14px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base);
        }

        .locator-item:hover {
            background: rgba(230, 46, 58, 0.1);
            color: var(--text-primary);
        }

        .locator-item i {
            font-size: 12px;
            color: var(--accent-secondary);
        }

        /* 页面主体 */
        .page-main {
            padding-top: 112px;
        }

        /* 分类 Header */
        .category-header {
            position: relative;
            background: linear-gradient(180deg, rgba(23, 20, 28, 0.9), rgba(14, 13, 18, 0.95));
            border-bottom: 1px solid var(--border);
            padding: 48px 0 40px;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(230, 46, 58, 0.18), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header::after {
            content: '';
            position: absolute;
            bottom: 24px;
            right: 48px;
            width: 64px;
            height: 64px;
            background-image: radial-gradient(circle, rgba(245, 166, 35, 0.6) 1.5px, transparent 1.5px);
            background-size: 10px 10px;
            pointer-events: none;
            opacity: 0.5;
        }

        .breadcrumb-wrap {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .breadcrumb-wrap a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .breadcrumb-wrap a:hover {
            color: var(--accent-secondary);
        }

        .breadcrumb-wrap .separator {
            opacity: 0.5;
        }

        .breadcrumb-wrap .current {
            color: var(--text-primary);
            font-weight: 500;
        }

        .category-h1 {
            font-size: 42px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 10px;
            position: relative;
            z-index: 2;
        }

        .category-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 560px;
            position: relative;
            z-index: 2;
        }

        /* 攻略步骤卡列表 */
        .guide-list-section {
            background: var(--bg-base);
        }

        .guide-card {
            display: flex;
            gap: 20px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card);
            padding: 20px;
            margin-bottom: 20px;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(230, 46, 58, 0.4);
            background: var(--bg-surface-hover);
        }

        .guide-card-img {
            flex: 0 0 220px;
            height: 140px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            position: relative;
            background: var(--bg-surface);
        }

        .guide-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .guide-card:hover .guide-card-img img {
            transform: scale(1.04);
        }

        .guide-card-img .step-badge {
            position: absolute;
            top: 10px;
            left: 10px;
            background: rgba(14, 13, 18, 0.85);
            border: 1px solid var(--accent-primary);
            color: var(--text-primary);
            font-size: 11px;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 12px;
            letter-spacing: 0.04em;
        }

        .guide-card-body {
            flex: 1;
            display: flex;
            flex-direction: column;
            justify-content: center;
            min-width: 0;
        }

        .guide-card-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            font-weight: 500;
            color: var(--accent-secondary);
            background: rgba(245, 166, 35, 0.1);
            padding: 3px 10px;
            border-radius: 12px;
            margin-bottom: 8px;
            align-self: flex-start;
        }

        .guide-card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
            letter-spacing: -0.01em;
        }

        .guide-card-excerpt {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .guide-card-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .guide-card-meta i {
            font-size: 11px;
            color: var(--accent-secondary);
        }

        /* 专题卡 */
        .topic-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px;
            height: 100%;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
            position: relative;
            overflow: hidden;
        }

        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(230, 46, 58, 0.4);
        }

        .topic-card .topic-icon {
            width: 44px;
            height: 44px;
            background: rgba(230, 46, 58, 0.12);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--accent-primary);
            margin-bottom: 14px;
        }

        .topic-card h4 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 数据带 */
        .stats-bar {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 28px;
            display: flex;
            align-items: center;
            justify-content: space-around;
            gap: 24px;
            flex-wrap: wrap;
        }

        .stat-item {
            text-align: center;
        }

        .stat-number {
            font-family: var(--font-num);
            font-size: 30px;
            font-weight: 800;
            color: var(--accent-primary);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .stat-label {
            font-size: 12px;
            color: var(--text-secondary);
            margin-top: 4px;
            letter-spacing: 0.04em;
        }

        /* CTA 带 */
        .cta-band {
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.15), rgba(143, 29, 44, 0.15));
            border: 1px solid rgba(230, 46, 58, 0.25);
            border-radius: var(--radius-lg);
            padding: 36px 32px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
        }

        .cta-band h3 {
            font-size: 22px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 4px;
            letter-spacing: -0.01em;
        }

        .cta-band p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-primary);
            color: #fff;
            border: 1px solid var(--accent-primary);
            border-radius: 10px;
            padding: 12px 24px;
            font-size: 15px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
            white-space: nowrap;
        }

        .btn-primary-custom:hover {
            background: var(--accent-deep);
            border-color: var(--accent-deep);
            box-shadow: 0 6px 20px rgba(230, 46, 58, 0.35);
            color: #fff;
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--accent-secondary);
            border: 1px solid var(--accent-secondary);
            border-radius: 10px;
            padding: 12px 20px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base);
            white-space: nowrap;
        }

        .btn-secondary-custom:hover {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-secondary);
        }

        /* FAQ 样式 */
        .faq-section {
            background: var(--bg-base);
        }

        .faq-accordion .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm) !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-base), box-shadow var(--transition-base);
        }

        .faq-accordion .accordion-item:hover {
            border-color: rgba(230, 46, 58, 0.3);
        }

        .faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)) {
            border-left: 3px solid var(--accent-primary);
            box-shadow: var(--shadow-card);
        }

        .faq-accordion .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 16px 20px;
            box-shadow: none;
            border-radius: var(--radius-sm);
            transition: background var(--transition-base), color var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-surface-hover);
            color: var(--text-primary);
            box-shadow: none;
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
            outline: none;
        }

        .faq-accordion .accordion-button::after {
            background-image: none;
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 13px;
            color: var(--accent-secondary);
            transition: transform var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            color: var(--accent-primary);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
            padding: 4px 20px 18px;
        }

        /* 底部返回 */
        .bottom-breadcrumb {
            border-top: 1px solid var(--border);
            padding: 20px 0;
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .bottom-breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .bottom-breadcrumb a:hover {
            color: var(--accent-secondary);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 56px 0 32px;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-logo .brand-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 7px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 16px;
            max-width: 280px;
        }

        .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--accent-secondary);
            border: 1px solid var(--border);
            border-radius: 18px;
            padding: 6px 14px;
            cursor: pointer;
            transition: border-color var(--transition-base), background var(--transition-base);
        }

        .footer-locator:hover {
            border-color: var(--accent-secondary);
            background: rgba(245, 166, 35, 0.08);
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            flex-wrap: wrap;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .footer-links a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        .footer-links span {
            opacity: 0.4;
        }

        /* 响应式 */
        @media (max-width: 1199px) {
            .nav-menu {
                gap: 18px;
            }
            .guide-card-img {
                flex: 0 0 180px;
                height: 120px;
            }
        }

        @media (max-width: 991px) {
            .navbar-toggler {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: var(--bg-surface);
                border: 1px solid var(--border-strong);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                box-shadow: var(--shadow-card-hover);
                padding: 16px 20px;
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
                display: none;
                z-index: 1050;
            }
            .nav-menu.open {
                display: flex;
                animation: fadeInUp 0.2s ease-out;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                padding: 8px 0;
                font-size: 15px;
            }
            .nav-menu li a.active::after {
                bottom: 2px;
                height: 2px;
            }
            .nav-locator .locator-text {
                display: none;
            }
            .nav-locator {
                padding: 8px 10px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
            .category-h1 {
                font-size: 32px;
            }
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .guide-card {
                flex-direction: column;
            }
            .guide-card-img {
                flex: none;
                width: 100%;
                height: 180px;
            }
        }

        @media (max-width: 767px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .category-h1 {
                font-size: 26px;
            }
            .category-header {
                padding: 36px 0 28px;
            }
            .category-subtitle {
                font-size: 13px;
            }
            .stats-bar {
                flex-direction: column;
                gap: 16px;
                padding: 20px;
            }
            .stat-number {
                font-size: 24px;
            }
            .cta-band {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .guide-card-img {
                height: 160px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }
            .page-main {
                padding-top: 96px;
            }
        }

        @media (max-width: 520px) {
            .navbar-brand {
                font-size: 17px;
            }
            .navbar-brand .brand-mark {
                width: 28px;
                height: 28px;
                font-size: 14px;
            }
            .nav-menu li a {
                font-size: 14px;
            }
            .guide-card-title {
                font-size: 15px;
            }
            .guide-card-excerpt {
                font-size: 12.5px;
            }
            .btn-primary-custom,
            .btn-secondary-custom {
                padding: 10px 18px;
                font-size: 13px;
            }
            .cta-band h3 {
                font-size: 18px;
            }
        }

/* roulang page: category2 */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 72px;
            --section-pad-mobile: 48px;
            --card-gutter: 22px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 64px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), border-color var(--transition-base), background var(--transition-base), box-shadow var(--transition-base);
        }

        a:hover {
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-md);
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
            position: relative;
        }
        section + section {
            border-top: 1px solid rgba(242, 238, 244, 0.05);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent-primary);
        }

        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }

        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            z-index: 1042;
        }

        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 700;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: block;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 0;
            position: relative;
            transition: color var(--transition-fast);
            white-space: nowrap;
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
            transition: width var(--transition-base);
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--text-primary);
        }

        .nav-menu li a:hover::after,
        .nav-menu li a.active::after {
            width: 100%;
        }

        .nav-menu li a.active {
            color: var(--accent-secondary);
        }

        .nav-locator {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 7px 14px;
            border: 1px solid var(--border);
            border-radius: 999px;
            cursor: pointer;
            font-size: 13px;
            color: var(--text-secondary);
            background: rgba(242, 238, 244, 0.04);
            transition: all var(--transition-fast);
            position: relative;
            z-index: 1042;
            white-space: nowrap;
            user-select: none;
        }

        .nav-locator:hover,
        .nav-locator:focus {
            border-color: var(--accent-secondary);
            color: var(--text-primary);
            background: rgba(245, 166, 35, 0.08);
            outline: none;
        }

        .nav-locator .locator-icon {
            color: var(--accent-secondary);
            font-size: 14px;
        }

        .nav-locator .locator-text {
            font-size: 12px;
        }

        .locator-panel {
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card-hover);
            padding: 12px 0;
            min-width: 190px;
            opacity: 0;
            visibility: hidden;
            transform: translateY(-6px);
            transition: all var(--transition-base);
            z-index: 1060;
        }

        .locator-panel.open {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }

        .locator-item {
            padding: 8px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: all var(--transition-fast);
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .locator-item:hover {
            background: rgba(230, 46, 58, 0.1);
            color: var(--text-primary);
        }

        .locator-item i {
            color: var(--accent-secondary);
            font-size: 12px;
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-primary);
            border-radius: var(--radius-sm);
            padding: 8px 12px;
            cursor: pointer;
            font-size: 18px;
            z-index: 1042;
            transition: all var(--transition-fast);
        }

        .navbar-toggler:hover {
            border-color: var(--accent-primary);
            color: var(--accent-primary);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding-top: 56px;
            padding-bottom: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 18px;
            font-weight: 800;
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .brand-mark {
            width: 30px;
            height: 30px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 7px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            color: #fff;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }

        .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
            border: 1px solid var(--border);
            border-radius: 999px;
            padding: 6px 12px;
        }

        .footer-locator i {
            color: var(--accent-secondary);
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 20px;
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-left: auto;
        }

        .footer-bottom .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--accent-secondary);
        }

        /* 分类页 Header */
        .category-header {
            background: linear-gradient(165deg, #17141C 0%, #1E1820 55%, #0E0D12 100%);
            border-bottom: 1px solid var(--border);
            padding-top: 140px;
            padding-bottom: 48px;
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            right: -80px;
            top: -60px;
            width: 320px;
            height: 320px;
            background: radial-gradient(circle, rgba(230, 46, 58, 0.14) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header::after {
            content: '';
            position: absolute;
            right: 180px;
            bottom: 20px;
            width: 140px;
            height: 140px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            position: relative;
            z-index: 2;
        }

        .breadcrumb-nav a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .breadcrumb-nav a:hover {
            color: var(--accent-secondary);
        }

        .breadcrumb-nav .separator {
            opacity: 0.5;
        }

        .breadcrumb-nav .current {
            color: var(--text-primary);
            font-weight: 600;
        }

        .category-header h1 {
            font-size: 46px;
            font-weight: 800;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
            position: relative;
            z-index: 2;
        }

        .category-header .category-subtitle {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 520px;
            line-height: 1.7;
            position: relative;
            z-index: 2;
        }

        .category-header .decor-dots {
            position: absolute;
            right: 40px;
            bottom: 40px;
            width: 80px;
            height: 80px;
            background-image: radial-gradient(circle, var(--accent-primary) 1.5px, transparent 1.5px);
            background-size: 14px 14px;
            opacity: 0.35;
            z-index: 1;
        }

        /* 焦点赛事卡 */
        .focus-event-section {
            background: var(--bg-base);
        }

        .focus-event-card {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }

        .focus-event-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card-hover);
        }

        .focus-event-card .focus-image {
            position: relative;
            min-height: 300px;
            overflow: hidden;
        }

        .focus-event-card .focus-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .focus-event-card .focus-image::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 13, 18, 0.25) 30%, rgba(230, 46, 58, 0.15) 100%);
            pointer-events: none;
        }

        .focus-event-badge {
            position: absolute;
            top: 16px;
            left: 16px;
            background: var(--accent-primary);
            color: #fff;
            font-size: 12px;
            font-weight: 700;
            padding: 5px 12px;
            border-radius: 999px;
            z-index: 3;
            letter-spacing: 0.04em;
        }

        .focus-event-content {
            padding: 32px 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .focus-event-content .event-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--accent-secondary);
            font-weight: 600;
            margin-bottom: 12px;
        }

        .focus-event-content h2 {
            font-size: 26px;
            font-weight: 800;
            line-height: 1.3;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .focus-event-content p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 18px;
        }

        .focus-event-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .focus-event-meta span {
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .focus-event-meta i {
            color: var(--accent-secondary);
            font-size: 11px;
        }

        /* 时间流 */
        .timeline-section {
            background: var(--bg-base);
        }

        .timeline-wrapper {
            position: relative;
            padding-left: 36px;
        }

        .timeline-wrapper::before {
            content: '';
            position: absolute;
            left: 12px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: linear-gradient(180deg, var(--accent-primary) 0%, var(--accent-deep) 50%, var(--border) 100%);
            border-radius: 1px;
        }

        .timeline-item {
            position: relative;
            margin-bottom: 28px;
            padding-left: 12px;
        }

        .timeline-item:last-child {
            margin-bottom: 0;
        }

        .timeline-item::before {
            content: '';
            position: absolute;
            left: -30px;
            top: 18px;
            width: 12px;
            height: 12px;
            background: var(--accent-primary);
            border-radius: 50%;
            border: 3px solid var(--bg-base);
            box-shadow: 0 0 0 2px var(--accent-primary);
        }

        .timeline-item .timeline-date {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--accent-secondary);
            font-weight: 600;
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .timeline-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .timeline-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }

        .timeline-card .timeline-card-inner {
            display: grid;
            grid-template-columns: 220px 1fr;
        }

        .timeline-card .timeline-img {
            position: relative;
            min-height: 150px;
            overflow: hidden;
        }

        .timeline-card .timeline-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
        }

        .timeline-card .timeline-img::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(14, 13, 18, 0.1) 0%, transparent 60%);
            pointer-events: none;
        }

        .timeline-card .timeline-content {
            padding: 20px 24px;
        }

        .timeline-card .timeline-content h3 {
            font-size: 16px;
            font-weight: 700;
            line-height: 1.4;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.005em;
        }

        .timeline-card .timeline-content p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 10px;
        }

        .timeline-card .timeline-badge {
            display: inline-block;
            font-size: 11px;
            font-weight: 600;
            color: var(--text-secondary);
            background: rgba(242, 238, 244, 0.06);
            padding: 3px 10px;
            border-radius: 999px;
            letter-spacing: 0.03em;
        }

        /* 赛区专题卡 */
        .region-cards-section {
            background: var(--bg-surface);
        }

        .region-card-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gutter);
        }

        .region-card {
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 22px;
            transition: all var(--transition-base);
            box-shadow: var(--shadow-card);
        }

        .region-card:hover {
            border-color: var(--accent-primary);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .region-card .region-icon {
            width: 42px;
            height: 42px;
            border-radius: var(--radius-sm);
            background: rgba(230, 46, 58, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--accent-primary);
            margin-bottom: 14px;
        }

        .region-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
        }

        .region-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 数据带 */
        .event-stats-section {
            background: var(--bg-base);
        }

        .event-stats-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gutter);
        }

        .event-stat-item {
            text-align: center;
            padding: 26px 16px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            transition: all var(--transition-base);
        }

        .event-stat-item:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card);
        }

        .event-stat-item .stat-number {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 800;
            color: var(--accent-secondary);
            letter-spacing: -0.02em;
            margin-bottom: 6px;
            line-height: 1.1;
        }

        .event-stat-item .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-surface);
        }

        .faq-accordion .faq-item {
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: var(--radius-sm);
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }

        .faq-accordion .faq-item:last-child {
            margin-bottom: 0;
        }

        .faq-accordion .faq-item.open {
            border-left: 3px solid var(--accent-primary);
            border-color: var(--border-strong);
        }

        .faq-accordion .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 16px 20px;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            user-select: none;
            gap: 12px;
            transition: color var(--transition-fast);
        }

        .faq-accordion .faq-question:hover {
            color: var(--accent-secondary);
        }

        .faq-accordion .faq-question .faq-toggle {
            flex-shrink: 0;
            width: 24px;
            height: 24px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            background: rgba(242, 238, 244, 0.06);
            color: var(--text-muted);
            font-size: 11px;
            transition: all var(--transition-base);
        }

        .faq-accordion .faq-item.open .faq-question .faq-toggle {
            background: var(--accent-primary);
            color: #fff;
            transform: rotate(180deg);
        }

        .faq-accordion .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 300ms ease-out;
        }

        .faq-accordion .faq-item.open .faq-answer {
            max-height: 260px;
        }

        .faq-accordion .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* CTA 带 */
        .cta-band-section {
            background: var(--bg-base);
        }

        .cta-band {
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.14) 0%, rgba(23, 20, 28, 0.9) 45%, rgba(245, 166, 35, 0.08) 100%);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 42px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-band::before {
            content: '';
            position: absolute;
            left: -40px;
            bottom: -60px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(230, 46, 58, 0.2) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-band h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: -0.01em;
            position: relative;
            z-index: 2;
        }

        .cta-band p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
            position: relative;
            z-index: 2;
        }

        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent-primary);
            color: #fff;
            font-size: 15px;
            font-weight: 700;
            padding: 12px 28px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            position: relative;
            z-index: 2;
            letter-spacing: 0.02em;
        }

        .btn-primary-custom:hover {
            background: var(--accent-deep);
            box-shadow: var(--shadow-glow);
            transform: translateY(-2px);
            color: #fff;
        }

        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: transparent;
            color: var(--accent-secondary);
            font-size: 15px;
            font-weight: 600;
            padding: 11px 24px;
            border-radius: 10px;
            border: 1px solid var(--accent-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
            position: relative;
            z-index: 2;
        }

        .btn-secondary-custom:hover {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-secondary);
            border-color: var(--accent-secondary);
        }

        /* 底部面包屑 */
        .bottom-breadcrumb-section {
            background: var(--bg-base);
            padding-top: 32px;
            padding-bottom: 32px;
        }

        .bottom-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .bottom-breadcrumb .breadcrumb-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .bottom-breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .bottom-breadcrumb a:hover {
            color: var(--accent-secondary);
        }

        .btn-back-home {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--accent-secondary);
            font-weight: 600;
            transition: all var(--transition-fast);
        }

        .btn-back-home:hover {
            color: var(--accent-primary);
        }

        /* 响应式 */
        @media (max-width: 1199px) {
            .nav-menu {
                gap: 14px;
            }
            .nav-menu li a {
                font-size: 13px;
            }
            .nav-locator .locator-text {
                display: none;
            }
            .nav-locator {
                padding: 7px 10px;
            }
        }

        @media (max-width: 991px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                background: var(--bg-surface);
                border: 1px solid var(--border);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                box-shadow: var(--shadow-card-hover);
                padding: 8px 0;
                display: none;
                z-index: 1045;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                padding: 12px 20px;
                width: 100%;
                font-size: 14px;
            }
            .nav-menu li a::after {
                display: none;
            }
            .nav-locator {
                margin: 4px 16px 12px;
                align-self: stretch;
                justify-content: center;
            }
            .focus-event-card {
                grid-template-columns: 1fr;
            }
            .focus-event-card .focus-image {
                min-height: 220px;
            }
            .region-card-grid,
            .event-stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .timeline-card .timeline-card-inner {
                grid-template-columns: 180px 1fr;
            }
            .category-header h1 {
                font-size: 36px;
            }
        }

        @media (max-width: 767px) {
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 24px;
            }
            .section-desc {
                font-size: 13px;
            }
            .category-header {
                padding-top: 110px;
                padding-bottom: 36px;
            }
            .category-header h1 {
                font-size: 30px;
            }
            .category-header .category-subtitle {
                font-size: 13px;
            }
            .focus-event-content {
                padding: 24px 20px;
            }
            .focus-event-content h2 {
                font-size: 20px;
            }
            .timeline-wrapper {
                padding-left: 26px;
            }
            .timeline-wrapper::before {
                left: 6px;
            }
            .timeline-item::before {
                left: -22px;
                width: 10px;
                height: 10px;
                top: 14px;
            }
            .timeline-card .timeline-card-inner {
                grid-template-columns: 1fr;
            }
            .timeline-card .timeline-img {
                min-height: 160px;
            }
            .timeline-card .timeline-content {
                padding: 16px 18px;
            }
            .region-card-grid {
                grid-template-columns: 1fr;
            }
            .event-stats-grid {
                grid-template-columns: 1fr;
            }
            .cta-band {
                padding: 32px 20px;
            }
            .cta-band h3 {
                font-size: 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .footer-brand {
                grid-column: 1 / -1;
            }
            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 8px;
            }
            .footer-bottom .footer-links {
                margin-left: 0;
            }
            .bottom-breadcrumb {
                flex-direction: column;
                align-items: flex-start;
                gap: 12px;
            }
        }

        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .nav-menu li a {
                font-size: 13px;
                padding: 10px 16px;
            }
            .category-header h1 {
                font-size: 26px;
            }
            .focus-event-content h2 {
                font-size: 18px;
            }
            .timeline-card .timeline-content h3 {
                font-size: 14px;
            }
        }

/* roulang page: category3 */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 56px;
            --card-gutter: 22px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 64px;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            text-decoration: none;
            color: var(--accent-secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }
        .text-accent {
            color: var(--accent-primary);
        }
        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }
        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            gap: 22px;
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .nav-menu li a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 6px 10px;
            border-radius: 6px;
            transition: color var(--transition-base), background var(--transition-base);
            white-space: nowrap;
        }
        .nav-menu li a:hover {
            color: var(--text-primary);
            background: rgba(230, 46, 58, 0.12);
        }
        .nav-menu li a.active {
            color: #fff;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 6px;
            box-shadow: 0 0 16px rgba(230, 46, 58, 0.35);
        }
        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border-strong);
            color: var(--text-primary);
            border-radius: 6px;
            padding: 8px 14px;
            font-size: 18px;
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .navbar-toggler:hover {
            border-color: var(--accent-primary);
            color: var(--accent-secondary);
        }
        .nav-locator {
            position: relative;
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 6px 14px;
            border: 1px solid var(--border-strong);
            border-radius: 20px;
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            user-select: none;
            background: rgba(23, 20, 28, 0.6);
        }
        .nav-locator:hover {
            border-color: var(--accent-secondary);
            color: var(--text-primary);
        }
        .nav-locator .locator-icon {
            color: var(--accent-secondary);
            font-size: 14px;
        }
        .nav-locator .locator-text {
            white-space: nowrap;
            font-size: 12px;
        }
        .nav-locator .locator-item {
            display: none;
            position: absolute;
            top: calc(100% + 10px);
            right: 0;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: 10px;
            padding: 14px 18px;
            min-width: 200px;
            box-shadow: var(--shadow-card-hover);
            z-index: 1050;
            cursor: pointer;
            white-space: nowrap;
            transition: all var(--transition-base);
        }
        .nav-locator.open .locator-item {
            display: block;
        }
        .nav-locator .locator-item:hover {
            background: var(--bg-surface-hover);
            color: var(--accent-secondary);
        }
        .nav-locator .locator-item i {
            margin-right: 8px;
            color: var(--accent-secondary);
            font-size: 12px;
        }

        /* 分类页 Header */
        .category-header {
            padding-top: 140px;
            padding-bottom: 56px;
            background: linear-gradient(135deg, #0E0D12 0%, #17141C 55%, #1E161C 100%);
            border-bottom: 1px solid var(--border);
            position: relative;
            overflow: hidden;
        }
        .category-header::after {
            content: '';
            position: absolute;
            right: -60px;
            bottom: -40px;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(230, 46, 58, 0.14) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .category-header::before {
            content: '';
            position: absolute;
            right: 120px;
            bottom: 40px;
            width: 48px;
            height: 48px;
            background-image: radial-gradient(circle, rgba(245, 166, 35, 0.35) 1.5px, transparent 1.5px);
            background-size: 12px 12px;
            opacity: 0.5;
            pointer-events: none;
        }
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-secondary);
        }
        .breadcrumb-nav .sep {
            opacity: 0.5;
        }
        .breadcrumb-nav .current {
            color: var(--text-secondary);
            font-weight: 500;
        }
        .category-header h1 {
            font-size: 52px;
            font-weight: 800;
            line-height: 1.18;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .category-header .header-desc {
            font-size: 15px;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
        }

        /* 社区卡片列表 */
        .community-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: var(--card-gutter);
        }
        .community-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px 22px;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }
        .community-card:hover {
            border-color: rgba(230, 46, 58, 0.45);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
            background: var(--bg-surface-hover);
        }
        .community-card .post-meta {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
            flex-wrap: wrap;
        }
        .community-card .post-avatar {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-deep), var(--accent-primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 14px;
            flex-shrink: 0;
        }
        .community-card .post-author {
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
        }
        .community-card .post-time {
            font-size: 12px;
            color: var(--text-muted);
        }
        .community-card .post-tag {
            font-size: 11px;
            padding: 3px 10px;
            border-radius: 12px;
            background: rgba(230, 46, 58, 0.14);
            color: var(--accent-primary);
            font-weight: 500;
            letter-spacing: 0.02em;
        }
        .community-card .post-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.45;
            margin-bottom: 8px;
        }
        .community-card .post-excerpt {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            flex-grow: 1;
        }
        .community-card .post-stats {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .community-card .post-stats i {
            margin-right: 5px;
            color: var(--accent-secondary);
            font-size: 11px;
        }

        /* 话题标签云 */
        .topic-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }
        .topic-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 20px;
            border: 1px solid var(--border-strong);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-surface);
            transition: all var(--transition-base);
            cursor: default;
        }
        .topic-tag:hover {
            border-color: var(--accent-primary);
            color: var(--text-primary);
            background: rgba(230, 46, 58, 0.08);
        }
        .topic-tag.hot {
            border-color: rgba(230, 46, 58, 0.5);
            color: var(--accent-primary);
            background: rgba(230, 46, 58, 0.1);
        }

        /* 数据带 */
        .community-stats-band {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
            padding: 36px 0;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            text-align: center;
        }
        .stat-item .stat-number {
            font-family: var(--font-num);
            font-size: 36px;
            font-weight: 800;
            color: var(--accent-secondary);
            letter-spacing: -0.01em;
            line-height: 1.2;
        }
        .stat-item .stat-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* 玩家风采 */
        .player-showcase-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gutter);
        }
        .showcase-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
        }
        .showcase-card:hover {
            border-color: rgba(245, 166, 35, 0.4);
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-3px);
        }
        .showcase-card .showcase-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #1E1A24;
            position: relative;
        }
        .showcase-card .showcase-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .showcase-card:hover .showcase-img img {
            transform: scale(1.04);
        }
        .showcase-card .showcase-info {
            padding: 16px 20px 20px;
        }
        .showcase-card .showcase-player {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .showcase-card .showcase-work {
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* FAQ */
        .faq-list {
            max-width: 820px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: all var(--transition-base);
        }
        .faq-item:hover {
            border-color: var(--border-strong);
        }
        .faq-item.open {
            border-left: 3px solid var(--accent-primary);
            border-left-color: var(--accent-primary);
        }
        .faq-question {
            padding: 16px 20px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            background: transparent;
            border: none;
            width: 100%;
            text-align: left;
            transition: color var(--transition-base);
        }
        .faq-question:hover {
            color: var(--accent-secondary);
        }
        .faq-question .faq-icon {
            font-size: 12px;
            color: var(--accent-secondary);
            transition: transform var(--transition-base);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-base);
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
        }
        .faq-answer-content {
            padding: 0 20px 18px;
            font-size: 14.5px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        /* CTA */
        .cta-band {
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.14) 0%, rgba(143, 29, 44, 0.1) 100%);
            border-top: 1px solid rgba(230, 46, 58, 0.25);
            border-bottom: 1px solid rgba(230, 46, 58, 0.25);
            padding: 48px 0;
            text-align: center;
        }
        .cta-band h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 10px;
        }
        .cta-band p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 22px;
        }

        /* 底部固定转化条 */
        .bottom-cta-bar {
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            z-index: 1030;
            background: rgba(14, 13, 18, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-top: 1px solid rgba(230, 46, 58, 0.3);
            height: 64px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 16px;
            transition: transform var(--transition-base), opacity var(--transition-base);
        }
        .bottom-cta-bar.hidden {
            transform: translateY(100%);
            opacity: 0;
            pointer-events: none;
        }
        .bottom-cta-bar .mini-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
        }
        .bottom-cta-bar .mini-brand .brand-mark {
            width: 26px;
            height: 26px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: #fff;
            font-weight: 800;
        }
        .bottom-cta-bar .cta-text {
            font-size: 13px;
            color: var(--text-secondary);
        }
        .bottom-cta-bar .close-bar {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            background: transparent;
            border: none;
            color: var(--text-muted);
            cursor: pointer;
            font-size: 16px;
            padding: 4px;
            transition: color var(--transition-base);
        }
        .bottom-cta-bar .close-bar:hover {
            color: var(--text-primary);
        }

        /* 按钮 */
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent-primary);
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            padding: 12px 30px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            transition: all var(--transition-base);
            box-shadow: 0 4px 16px rgba(230, 46, 58, 0.3);
        }
        .btn-primary-custom:hover {
            background: var(--accent-deep);
            color: #fff;
            box-shadow: 0 8px 24px rgba(230, 46, 58, 0.45);
            transform: translateY(-2px);
        }
        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: transparent;
            color: var(--accent-secondary);
            font-weight: 600;
            font-size: 15px;
            padding: 12px 30px;
            border-radius: 10px;
            border: 1px solid var(--accent-secondary);
            cursor: pointer;
            transition: all var(--transition-base);
        }
        .btn-secondary-custom:hover {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-secondary);
            border-color: var(--accent-secondary);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 48px 0 24px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .footer-logo .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
        }
        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
        }
        .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-muted);
            border: 1px solid var(--border-strong);
            border-radius: 16px;
            padding: 6px 14px;
        }
        .footer-locator i {
            color: var(--accent-secondary);
            font-size: 11px;
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }
        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }
        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 18px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-bottom .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }
        .footer-bottom .footer-links a:hover {
            color: var(--accent-secondary);
        }

        /* 响应式 */
        @media (min-width: 1200px) {
            .community-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .player-showcase-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(4, 1fr);
            }
        }
        @media (max-width: 1199.98px) {
            .nav-menu {
                gap: 14px;
            }
            .nav-menu li a {
                font-size: 13px;
                padding: 4px 8px;
            }
            .category-header h1 {
                font-size: 44px;
            }
        }
        @media (max-width: 991.98px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(14, 13, 18, 0.97);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border-strong);
                border-radius: 0 0 14px 14px;
                flex-direction: column;
                align-items: flex-start;
                gap: 0;
                padding: 12px 16px;
                box-shadow: var(--shadow-card-hover);
                z-index: 1045;
                max-height: 420px;
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
            }
            .nav-menu li {
                width: 100%;
            }
            .nav-menu li a {
                display: block;
                width: 100%;
                padding: 12px 14px;
                font-size: 15px;
                border-radius: 8px;
            }
            .nav-locator .locator-text {
                display: none;
            }
            .nav-locator {
                padding: 6px 10px;
            }
            .community-grid {
                grid-template-columns: 1fr;
            }
            .player-showcase-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .category-header h1 {
                font-size: 36px;
            }
            .section-title {
                font-size: 24px;
            }
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .bottom-cta-bar {
                height: 70px;
                padding-bottom: 4px;
                gap: 10px;
                flex-wrap: wrap;
                text-align: center;
            }
            .bottom-cta-bar .cta-text {
                display: none;
            }
        }
        @media (max-width: 767.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .category-header {
                padding-top: 110px;
                padding-bottom: 40px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .player-showcase-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-item .stat-number {
                font-size: 26px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .community-card {
                padding: 16px 18px;
            }
            .community-card .post-title {
                font-size: 16px;
            }
            .faq-question {
                font-size: 14.5px;
                padding: 14px 16px;
            }
            .bottom-cta-bar {
                flex-direction: column;
                height: auto;
                padding: 12px 16px;
                gap: 6px;
            }
            .bottom-cta-bar .mini-brand {
                font-size: 12px;
            }
            .bottom-cta-bar .btn-primary-custom {
                font-size: 13px;
                padding: 8px 20px;
            }
        }
        @media (max-width: 520px) {
            .category-header h1 {
                font-size: 24px;
            }
            .section-title {
                font-size: 20px;
            }
            .community-card .post-meta {
                gap: 6px;
            }
            .community-card .post-stats {
                gap: 10px;
                flex-wrap: wrap;
            }
            .cta-band h3 {
                font-size: 22px;
            }
        }

/* roulang page: category4 */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 72px;
            --section-pad-mobile: 48px;
            --card-gutter: 22px;
        }

        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            padding-bottom: 64px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }

        a:hover {
            text-decoration: none;
            color: var(--accent-secondary);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent-primary);
        }

        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }

        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
            flex-wrap: wrap;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            padding: 8px 0;
        }

        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            font-family: var(--font-num);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-primary);
            width: 40px;
            height: 40px;
            border-radius: 8px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 18px;
            transition: all var(--transition-fast);
        }

        .navbar-toggler:hover {
            border-color: var(--accent-primary);
            background: rgba(230, 46, 58, 0.1);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            padding: 8px 2px;
            position: relative;
            transition: color var(--transition-base);
            white-space: nowrap;
        }

        .nav-menu li a::after {
            content: '';
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
            border-radius: 1px;
            transition: width var(--transition-base);
        }

        .nav-menu li a:hover,
        .nav-menu li a.active {
            color: var(--text-primary);
        }

        .nav-menu li a.active::after,
        .nav-menu li a:hover::after {
            width: 100%;
        }

        .nav-locator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 8px 12px;
            border: 1px solid var(--border);
            border-radius: 20px;
            background: var(--bg-surface);
            transition: all var(--transition-base);
            position: relative;
            white-space: nowrap;
        }

        .nav-locator:hover {
            border-color: var(--accent-secondary);
            color: var(--text-primary);
        }

        .locator-icon {
            color: var(--accent-secondary);
            font-size: 13px;
        }

        .locator-panel {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-card-hover);
            padding: 8px;
            min-width: 180px;
            display: none;
            z-index: 1060;
        }

        .locator-panel.show {
            display: block;
        }

        .locator-item {
            padding: 10px 14px;
            border-radius: 8px;
            font-size: 13px;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            transition: all var(--transition-fast);
            white-space: nowrap;
        }

        .locator-item i {
            color: var(--accent-secondary);
            font-size: 12px;
        }

        .locator-item:hover {
            background: var(--bg-surface-hover);
            color: var(--text-primary);
        }

        /* 分类Header */
        .category-header {
            padding-top: 140px;
            padding-bottom: 56px;
            background: var(--bg-base);
            position: relative;
            overflow: hidden;
        }

        .category-header::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -40px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(230, 46, 58, 0.22), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: 20%;
            width: 260px;
            height: 260px;
            background: radial-gradient(circle, rgba(245, 166, 35, 0.12), transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .category-header .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-base);
        }

        .breadcrumb-custom a:hover {
            color: var(--accent-secondary);
        }

        .breadcrumb-custom .sep {
            color: var(--text-muted);
            opacity: 0.6;
        }

        .breadcrumb-custom .current {
            color: var(--accent-secondary);
            font-weight: 600;
        }

        .category-header h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .category-header .header-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 620px;
        }

        .header-dot-pattern {
            position: absolute;
            bottom: 20px;
            right: 40px;
            display: grid;
            grid-template-columns: repeat(4, 8px);
            gap: 8px;
            opacity: 0.4;
            z-index: 1;
        }

        .header-dot-pattern span {
            width: 8px;
            height: 8px;
            background: var(--accent-primary);
            border-radius: 50%;
        }

        .header-dot-pattern span:nth-child(2n) {
            background: var(--accent-secondary);
        }

        /* 活动倒计时卡 */
        .activity-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .activity-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(230, 46, 58, 0.4);
        }

        .activity-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16/9;
            overflow: hidden;
        }

        .activity-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }

        .activity-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .activity-card .card-img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(14, 13, 18, 0.75) 100%);
            pointer-events: none;
        }

        .activity-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            padding: 4px 12px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 0.05em;
        }

        .activity-tag.live {
            background: var(--accent-primary);
            color: #fff;
        }

        .activity-tag.upcoming {
            background: var(--accent-secondary);
            color: #1a1a1a;
        }

        .activity-tag.ended {
            background: rgba(124, 114, 124, 0.5);
            color: #d0c8d0;
        }

        .activity-card .card-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .activity-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.35;
        }

        .activity-card .card-desc {
            font-size: 13.5px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            flex: 1;
        }

        .countdown-row {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .countdown-label {
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }

        .countdown-timer {
            display: flex;
            gap: 6px;
            align-items: center;
        }

        .countdown-timer .time-unit {
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: 6px;
            padding: 4px 8px;
            min-width: 44px;
            text-align: center;
        }

        .countdown-timer .time-unit .value {
            font-family: var(--font-num);
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-secondary);
            display: block;
            line-height: 1.2;
            font-feature-settings: "tnum";
        }

        .countdown-timer .time-unit .unit-label {
            font-size: 10px;
            color: var(--text-muted);
            letter-spacing: 0.05em;
        }

        .countdown-timer .time-sep {
            color: var(--text-muted);
            font-weight: 700;
            font-size: 14px;
        }

        .btn-activity {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all var(--transition-base);
            background: var(--accent-primary);
            color: #fff;
            width: 100%;
            letter-spacing: 0.02em;
        }

        .btn-activity:hover {
            background: var(--accent-deep);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(230, 46, 58, 0.3);
            color: #fff;
        }

        .btn-activity:disabled {
            background: rgba(124, 114, 124, 0.4);
            color: #d0c8d0;
            cursor: not-allowed;
            transform: none;
            box-shadow: none;
        }

        .btn-outline-activity {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 20px;
            border-radius: 8px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all var(--transition-base);
            background: transparent;
            border: 1px solid var(--accent-secondary);
            color: var(--accent-secondary);
            width: 100%;
            letter-spacing: 0.02em;
        }

        .btn-outline-activity:hover {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-secondary);
        }

        /* 每日福利速览 */
        .daily-benefit-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 14px;
            transition: all var(--transition-base);
            height: 100%;
        }

        .daily-benefit-item:hover {
            border-color: var(--accent-secondary);
            background: var(--bg-surface-hover);
            transform: translateY(-2px);
        }

        .daily-benefit-item .benefit-icon {
            width: 44px;
            height: 44px;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(230, 46, 58, 0.12);
            color: var(--accent-primary);
            font-size: 18px;
            flex-shrink: 0;
        }

        .daily-benefit-item:nth-child(2) .benefit-icon {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-secondary);
        }

        .daily-benefit-item:nth-child(3) .benefit-icon {
            background: rgba(74, 173, 82, 0.12);
            color: var(--ok);
        }

        .daily-benefit-item .benefit-info h4 {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 2px;
        }

        .daily-benefit-item .benefit-info p {
            font-size: 12.5px;
            color: var(--text-muted);
            margin: 0;
        }

        /* 往期活动 */
        .past-activity-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition-base);
            height: 100%;
        }

        .past-activity-card:hover {
            border-color: var(--border-strong);
            box-shadow: var(--shadow-card);
        }

        .past-activity-card .past-img {
            aspect-ratio: 16/9;
            overflow: hidden;
            position: relative;
        }

        .past-activity-card .past-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            filter: grayscale(30%);
        }

        .past-activity-card .past-img::after {
            content: '已结束';
            position: absolute;
            top: 12px;
            right: 12px;
            background: rgba(14, 13, 18, 0.8);
            color: var(--text-secondary);
            font-size: 11px;
            padding: 4px 10px;
            border-radius: 6px;
            letter-spacing: 0.05em;
        }

        .past-activity-card .past-body {
            padding: 16px 18px;
        }

        .past-activity-card .past-title {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 4px;
        }

        .past-activity-card .past-date {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 福利数据带 */
        .stats-strip {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
        }

        .stats-strip .stat-item {
            text-align: center;
            padding: 8px 12px;
        }

        .stats-strip .stat-value {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-secondary);
            line-height: 1.2;
            margin-bottom: 4px;
            font-feature-settings: "tnum";
        }

        .stats-strip .stat-label {
            font-size: 13px;
            color: var(--text-secondary);
        }

        .stats-strip .stat-divider {
            width: 1px;
            background: var(--border);
            align-self: stretch;
        }

        /* 规则列表 */
        .rules-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 30px;
        }

        .rules-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .rules-list li {
            display: flex;
            align-items: flex-start;
            gap: 12px;
            padding: 10px 0;
            border-bottom: 1px solid var(--border);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .rules-list li:last-child {
            border-bottom: none;
        }

        .rules-list li .rule-icon {
            width: 22px;
            height: 22px;
            border-radius: 50%;
            background: rgba(230, 46, 58, 0.15);
            color: var(--accent-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            flex-shrink: 0;
            margin-top: 3px;
        }

        /* FAQ */
        .faq-accordion .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 10px;
            overflow: hidden;
        }

        .faq-accordion .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-size: 15px;
            font-weight: 600;
            padding: 16px 20px;
            border: none;
            box-shadow: none;
            border-radius: 10px !important;
            transition: all var(--transition-base);
        }

        .faq-accordion .accordion-button:not(.collapsed) {
            background: var(--bg-surface-hover);
            color: var(--text-primary);
            border-left: 3px solid var(--accent-primary);
        }

        .faq-accordion .accordion-button:focus {
            box-shadow: none;
        }

        .faq-accordion .accordion-button::after {
            filter: brightness(0) invert(1) opacity(0.7);
        }

        .faq-accordion .accordion-body {
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.75;
            padding: 14px 20px 18px;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.14), rgba(245, 166, 35, 0.08));
            border: 1px solid rgba(230, 46, 58, 0.25);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -100px;
            left: 50%;
            transform: translateX(-50%);
            width: 400px;
            height: 250px;
            background: radial-gradient(circle, rgba(230, 46, 58, 0.18), transparent 70%);
            pointer-events: none;
        }

        .cta-section h3 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }

        .cta-section p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 22px;
            position: relative;
            z-index: 1;
        }

        .cta-section .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            background: var(--accent-primary);
            color: #fff;
            border: none;
            border-radius: 8px;
            font-size: 16px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            letter-spacing: 0.02em;
        }

        .cta-section .btn-cta:hover {
            background: var(--accent-deep);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 46, 58, 0.35);
            color: #fff;
        }

        /* 底部面包屑 */
        .bottom-breadcrumb {
            padding: 28px 0;
            border-top: 1px solid var(--border);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 56px 0 0;
            margin-top: 40px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 36px;
            padding-bottom: 40px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .brand-mark {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            font-family: var(--font-num);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 14px;
        }

        .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 12px;
            color: var(--text-secondary);
            padding: 6px 12px;
            border: 1px solid var(--border);
            border-radius: 16px;
            background: var(--bg-base);
        }

        .footer-locator i {
            color: var(--accent-secondary);
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 18px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .footer-links a {
            color: var(--text-muted);
            transition: color var(--transition-base);
        }

        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        /* 响应式 */
        @media (max-width: 991.98px) {
            .navbar-toggler {
                display: flex;
            }

            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                background: var(--bg-surface);
                border: 1px solid var(--border);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                padding: 16px 20px;
                gap: 4px;
                box-shadow: var(--shadow-card);
                z-index: 1050;
            }

            .nav-menu.show {
                display: flex;
            }

            .nav-menu li a {
                display: block;
                padding: 10px 4px;
                font-size: 15px;
                border-bottom: 1px solid var(--border);
            }

            .nav-menu li:last-child a {
                border-bottom: none;
            }

            .nav-locator {
                margin-left: auto;
            }

            .category-header h1 {
                font-size: 38px;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 767.98px) {
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }

            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-title {
                font-size: 24px;
            }

            .category-header {
                padding-top: 110px;
                padding-bottom: 40px;
            }

            .category-header h1 {
                font-size: 32px;
            }

            .category-header .header-desc {
                font-size: 14px;
            }

            .header-dot-pattern {
                right: 16px;
                bottom: 12px;
                grid-template-columns: repeat(3, 6px);
                gap: 6px;
            }

            .header-dot-pattern span {
                width: 6px;
                height: 6px;
            }

            .stats-strip .stat-value {
                font-size: 24px;
            }

            .cta-section {
                padding: 36px 20px;
            }

            .cta-section h3 {
                font-size: 24px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }

            .footer-bottom {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
        }

        @media (max-width: 519.98px) {
            .category-header h1 {
                font-size: 28px;
            }

            .navbar-brand {
                font-size: 17px;
            }

            .navbar-brand .brand-mark {
                width: 28px;
                height: 28px;
                font-size: 14px;
                border-radius: 6px;
            }

            .nav-locator .locator-text {
                display: none;
            }

            .nav-locator {
                padding: 8px 10px;
                border-radius: 16px;
            }

            .activity-card .card-body {
                padding: 16px 16px 18px;
            }

            .countdown-timer .time-unit {
                min-width: 36px;
                padding: 3px 5px;
            }

            .countdown-timer .time-unit .value {
                font-size: 14px;
            }

            .rules-card {
                padding: 20px 16px;
            }
        }

/* roulang page: category6 */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 56px;
            --card-gutter: 22px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base);
        }
        a:hover {
            text-decoration: none;
            color: var(--accent-secondary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }
        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }
        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }
        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        .text-accent {
            color: var(--accent-primary);
        }
        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* 导航栏 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }
        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }
        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }
        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
        }
        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
        }
        .nav-menu {
            display: flex;
            align-items: center;
            list-style: none;
            margin: 0;
            padding: 0;
            gap: 4px;
        }
        .nav-menu li a {
            display: inline-block;
            padding: 8px 14px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: 8px;
            transition: color var(--transition-fast), background var(--transition-fast);
            white-space: nowrap;
        }
        .nav-menu li a:hover {
            color: var(--text-primary);
            background: rgba(242, 238, 244, 0.06);
        }
        .nav-menu li a.active {
            color: var(--text-primary);
            font-weight: 600;
            background: rgba(230, 46, 58, 0.14);
            box-shadow: inset 0 -2px 0 var(--accent-primary);
        }
        .navbar-toggler {
            display: none;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 20px;
            padding: 8px 12px;
            cursor: pointer;
            transition: background var(--transition-fast);
        }
        .navbar-toggler:hover {
            background: rgba(242, 238, 244, 0.06);
        }
        .nav-locator {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            padding: 8px 12px;
            border: 1px solid var(--border);
            border-radius: 10px;
            background: var(--bg-surface);
            transition: border-color var(--transition-fast), background var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .nav-locator:hover {
            border-color: var(--accent-primary);
            background: var(--bg-surface-hover);
        }
        .nav-locator .locator-icon {
            color: var(--accent-secondary);
            font-size: 14px;
        }
        .nav-locator .locator-text {
            font-size: 12px;
            letter-spacing: 0.02em;
        }
        .locator-panel {
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            width: 200px;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: 12px;
            box-shadow: var(--shadow-card-hover);
            padding: 10px 0;
            display: none;
            z-index: 1050;
        }
        .locator-panel.show {
            display: block;
        }
        .locator-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 16px;
            font-size: 13px;
            color: var(--text-secondary);
            cursor: pointer;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .locator-item:hover {
            background: rgba(230, 46, 58, 0.12);
            color: var(--text-primary);
        }
        .locator-item i {
            color: var(--accent-secondary);
            font-size: 13px;
        }

        /* 面包屑 */
        .breadcrumb-nav {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }
        .breadcrumb-nav a {
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .breadcrumb-nav a:hover {
            color: var(--accent-secondary);
        }
        .breadcrumb-nav .separator {
            opacity: 0.5;
            font-size: 10px;
        }
        .breadcrumb-nav .current {
            color: var(--text-secondary);
        }

        /* 分类Header区 */
        .category-header {
            padding-top: 120px;
            padding-bottom: 56px;
            position: relative;
            background: radial-gradient(ellipse at 80% 20%, rgba(230, 46, 58, 0.12), transparent 55%),
                        radial-gradient(ellipse at 15% 80%, rgba(245, 166, 35, 0.08), transparent 50%),
                        var(--bg-base);
            overflow: hidden;
        }
        .category-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
        }
        .category-header .header-inner {
            display: flex;
            flex-direction: column;
            max-width: 800px;
            position: relative;
            z-index: 2;
        }
        .category-header h1 {
            font-size: 44px;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 18px;
        }
        .category-header .header-desc {
            font-size: 16px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 640px;
        }
        .header-deco-dot {
            position: absolute;
            right: 8%;
            top: 50%;
            transform: translateY(-50%);
            width: 120px;
            height: 120px;
            background-image: radial-gradient(rgba(230, 46, 58, 0.5) 2px, transparent 2px);
            background-size: 16px 16px;
            opacity: 0.4;
            pointer-events: none;
        }

        /* 阶梯引导卡 */
        .guide-steps-section {
            background: var(--bg-base);
        }
        .steps-wrapper {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }
        .steps-wrapper::before {
            content: '';
            position: absolute;
            left: 32px;
            top: 0;
            bottom: 0;
            width: 3px;
            background: linear-gradient(180deg, var(--accent-primary), rgba(230, 46, 58, 0.15), var(--accent-secondary));
            border-radius: 2px;
        }
        .step-card {
            position: relative;
            display: flex;
            gap: 24px;
            margin-bottom: 28px;
            padding-left: 0;
        }
        .step-card:last-child {
            margin-bottom: 0;
        }
        .step-number {
            flex-shrink: 0;
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: var(--bg-surface);
            border: 2px solid var(--accent-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            font-family: var(--font-num);
            color: var(--accent-secondary);
            position: relative;
            z-index: 1;
            box-shadow: 0 0 0 6px var(--bg-base);
        }
        .step-body {
            flex: 1;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 24px 26px;
            display: flex;
            flex-wrap: wrap;
            align-items: flex-start;
            gap: 18px;
            transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
        }
        .step-body:hover {
            border-color: var(--accent-primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow-card-hover);
        }
        .step-text {
            flex: 1;
            min-width: 220px;
        }
        .step-text h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }
        .step-text p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 12px;
        }
        .step-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .step-tag {
            display: inline-flex;
            align-items: center;
            padding: 4px 10px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            background: rgba(242, 238, 244, 0.06);
            border: 1px solid var(--border);
            border-radius: 20px;
        }
        .step-image {
            flex-shrink: 0;
            width: 120px;
            height: 120px;
            border-radius: 10px;
            overflow: hidden;
            border: 1px solid var(--border);
        }
        .step-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        /* 专题卡 */
        .topic-cards-section {
            background: var(--bg-surface);
        }
        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gutter);
        }
        .topic-card {
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
        }
        .topic-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: var(--accent-primary);
        }
        .topic-card .topic-thumb {
            position: relative;
            height: 160px;
            overflow: hidden;
        }
        .topic-card .topic-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-base);
        }
        .topic-card:hover .topic-thumb img {
            transform: scale(1.05);
        }
        .topic-card .topic-thumb::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(14, 13, 18, 0.7));
        }
        .topic-card .topic-content {
            padding: 18px 20px 20px;
        }
        .topic-card .topic-icon {
            width: 32px;
            height: 32px;
            border-radius: 8px;
            background: rgba(230, 46, 58, 0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 14px;
            margin-bottom: 10px;
        }
        .topic-card h3 {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
        }
        .topic-card p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* 数据带 */
        .data-strip {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .data-strip-inner {
            display: flex;
            justify-content: space-around;
            flex-wrap: wrap;
            gap: 20px;
            padding: 28px 0;
        }
        .data-item {
            text-align: center;
            min-width: 120px;
        }
        .data-item .data-num {
            font-size: 30px;
            font-weight: 800;
            font-family: var(--font-num);
            color: var(--accent-primary);
            letter-spacing: -0.02em;
        }
        .data-item .data-label {
            font-size: 13px;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* 快速上手要点 */
        .tips-section {
            background: var(--bg-surface);
        }
        .tips-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 18px;
        }
        .tip-item {
            display: flex;
            align-items: center;
            gap: 14px;
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 16px 18px;
            transition: border-color var(--transition-fast), transform var(--transition-fast);
        }
        .tip-item:hover {
            border-color: var(--accent-secondary);
            transform: translateX(4px);
        }
        .tip-item .tip-icon {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(245, 166, 35, 0.14);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 15px;
        }
        .tip-item .tip-text {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-primary);
            line-height: 1.5;
        }

        /* FAQ */
        .faq-section {
            background: var(--bg-base);
        }
        .accordion-custom .accordion-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 10px !important;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-fast);
        }
        .accordion-custom .accordion-item:last-child {
            margin-bottom: 0;
        }
        .accordion-custom .accordion-item:hover {
            border-color: var(--border-strong);
        }
        .accordion-custom .accordion-header {
            margin: 0;
        }
        .accordion-custom .accordion-button {
            background: var(--bg-surface);
            color: var(--text-primary);
            font-size: 16px;
            font-weight: 600;
            padding: 18px 20px;
            border: none;
            border-radius: 10px !important;
            box-shadow: none !important;
            transition: background var(--transition-fast), color var(--transition-fast);
        }
        .accordion-custom .accordion-button:not(.collapsed) {
            background: var(--bg-surface-hover);
            color: var(--text-primary);
            box-shadow: inset 3px 0 0 var(--accent-primary) !important;
        }
        .accordion-custom .accordion-button::after {
            filter: brightness(0) invert(0.7);
            transition: transform var(--transition-base);
        }
        .accordion-custom .accordion-button:focus {
            outline: none;
            box-shadow: none;
        }
        .accordion-custom .accordion-body {
            background: var(--bg-surface);
            color: var(--text-secondary);
            font-size: 14.5px;
            line-height: 1.75;
            padding: 16px 20px 18px;
            border-top: 1px solid var(--border);
        }

        /* CTA */
        .cta-section {
            background: var(--bg-surface);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.12), rgba(245, 166, 35, 0.06));
            pointer-events: none;
        }
        .cta-inner {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 36px 24px;
        }
        .cta-inner h3 {
            font-size: 26px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            margin-bottom: 10px;
        }
        .cta-inner p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 20px;
        }
        .btn-primary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            background: var(--accent-primary);
            border: none;
            border-radius: 10px;
            cursor: pointer;
            transition: background var(--transition-base), box-shadow var(--transition-base);
        }
        .btn-primary-custom:hover {
            background: var(--accent-deep);
            box-shadow: 0 8px 24px rgba(230, 46, 58, 0.35);
            color: #fff;
        }
        .btn-secondary-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 11px 22px;
            font-size: 14px;
            font-weight: 500;
            color: var(--accent-secondary);
            background: transparent;
            border: 1px solid var(--accent-secondary);
            border-radius: 10px;
            cursor: pointer;
            transition: background var(--transition-base), color var(--transition-base);
        }
        .btn-secondary-custom:hover {
            background: rgba(245, 166, 35, 0.12);
            color: var(--accent-secondary);
        }

        /* 底部面包屑 */
        .footer-breadcrumb {
            background: var(--bg-base);
            border-top: 1px solid var(--border);
            padding: 22px 0;
        }
        .footer-breadcrumb .inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-breadcrumb a {
            color: var(--text-muted);
            font-size: 13px;
            transition: color var(--transition-fast);
        }
        .footer-breadcrumb a:hover {
            color: var(--accent-secondary);
        }
        .footer-breadcrumb .back-home {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-secondary);
        }

        /* 页脚 */
        .site-footer {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding: 48px 0 28px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 32px;
            margin-bottom: 32px;
        }
        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-brand .footer-logo .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
        }
        .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 300px;
            margin-bottom: 16px;
        }
        .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 13px;
            color: var(--text-muted);
            cursor: pointer;
            padding: 6px 12px;
            border: 1px solid var(--border);
            border-radius: 8px;
            transition: border-color var(--transition-fast);
        }
        .footer-locator:hover {
            border-color: var(--accent-primary);
            color: var(--text-secondary);
        }
        .footer-locator i {
            color: var(--accent-secondary);
        }
        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-muted);
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-muted);
        }
        .footer-links {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .footer-links a {
            color: var(--text-muted);
            font-size: 12px;
            transition: color var(--transition-fast);
        }
        .footer-links a:hover {
            color: var(--accent-secondary);
        }

        /* 响应式 */
        @media (max-width: 991px) {
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
            .section-title {
                font-size: 26px;
            }
            .section-desc {
                font-size: 14px;
            }
            .category-header h1 {
                font-size: 32px;
            }
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .tips-list {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: 2fr 1fr;
                gap: 24px;
            }
        }
        @media (max-width: 767px) {
            .navbar {
                flex-wrap: wrap;
                min-height: auto;
                padding: 12px 0;
            }
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0;
                padding: 12px 0;
                align-items: stretch;
            }
            .nav-menu.show {
                display: flex;
            }
            .nav-menu li a {
                display: block;
                padding: 12px 0;
                border-bottom: 1px solid var(--border);
                border-radius: 0;
                font-size: 15px;
            }
            .nav-menu li:last-child a {
                border-bottom: none;
            }
            .nav-locator {
                position: static;
                margin-top: 8px;
                width: 100%;
                justify-content: center;
            }
            .locator-panel {
                width: 100%;
                right: auto;
                left: 0;
            }
            .category-header {
                padding-top: 96px;
                padding-bottom: 40px;
            }
            .category-header h1 {
                font-size: 28px;
            }
            .category-header .header-desc {
                font-size: 14px;
            }
            .header-deco-dot {
                display: none;
            }
            .steps-wrapper::before {
                left: 24px;
            }
            .step-card {
                flex-direction: column;
                gap: 14px;
                padding-left: 0;
            }
            .step-number {
                width: 48px;
                height: 48px;
                font-size: 17px;
                border-radius: 50%;
                margin-left: 0;
                z-index: 1;
            }
            .step-body {
                flex-direction: column;
                padding: 18px;
            }
            .step-image {
                width: 100%;
                height: 160px;
            }
            .topic-grid {
                grid-template-columns: 1fr;
            }
            .tips-list {
                grid-template-columns: 1fr;
            }
            .data-strip-inner {
                flex-direction: column;
                align-items: center;
                gap: 16px;
            }
            .cta-inner {
                padding: 28px 16px;
            }
            .cta-inner h3 {
                font-size: 21px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .footer-links {
                justify-content: center;
            }
        }
        @media (max-width: 520px) {
            .section-title {
                font-size: 22px;
            }
            .category-header h1 {
                font-size: 24px;
            }
            .step-text h3 {
                font-size: 17px;
            }
            .data-item .data-num {
                font-size: 24px;
            }
            .navbar-brand {
                font-size: 17px;
            }
            .navbar-brand .brand-mark {
                width: 30px;
                height: 30px;
                font-size: 15px;
            }
        }

/* roulang page: category5 */
:root {
            --bg-base: #0E0D12;
            --bg-surface: #17141C;
            --bg-surface-hover: #1E1A24;
            --bg-elevated: #1D1822;
            --accent-primary: #E62E3A;
            --accent-secondary: #F5A623;
            --accent-deep: #8F1D2C;
            --accent-glow: rgba(230, 46, 58, 0.32);
            --accent-glow-soft: rgba(230, 46, 58, 0.16);
            --text-primary: #F2EEF4;
            --text-secondary: #A89DA5;
            --text-muted: #7C727C;
            --border: rgba(242, 238, 244, 0.12);
            --border-strong: rgba(242, 238, 244, 0.22);
            --ok: #4AAD52;
            --warn: #D9822B;
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 18px;
            --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.35);
            --shadow-card-hover: 0 12px 32px rgba(0, 0, 0, 0.5);
            --shadow-glow: 0 0 24px var(--accent-glow);
            --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            --font-num: "Inter", "SF Pro Display", "PingFang SC", sans-serif;
            --transition-base: 220ms ease-out;
            --transition-fast: 160ms ease-out;
            --container-max: 1200px;
            --section-pad-desktop: 88px;
            --section-pad-mobile: 56px;
            --card-gutter: 22px;
        }

        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: var(--font-body);
            background-color: var(--bg-base);
            color: var(--text-primary);
            line-height: 1.75;
            font-size: 15px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            padding-bottom: 0;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition-base), opacity var(--transition-base);
        }

        a:hover {
            text-decoration: none;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }

        button:focus-visible,
        a:focus-visible {
            outline: 3px solid rgba(230, 46, 58, 0.45);
            outline-offset: 2px;
            border-radius: 4px;
        }

        .container {
            max-width: var(--container-max);
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        section {
            padding-top: var(--section-pad-desktop);
            padding-bottom: var(--section-pad-desktop);
        }

        @media (max-width: 768px) {
            section {
                padding-top: var(--section-pad-mobile);
                padding-bottom: var(--section-pad-mobile);
            }
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        .section-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            color: var(--accent-secondary);
            margin-bottom: 12px;
        }

        .section-label::before {
            content: '';
            width: 24px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .section-title {
            font-size: 34px;
            font-weight: 800;
            line-height: 1.2;
            letter-spacing: -0.02em;
            color: var(--text-primary);
            margin-bottom: 12px;
        }

        .section-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
            max-width: 680px;
            margin-bottom: 32px;
        }

        @media (max-width: 768px) {
            .section-title {
                font-size: 26px;
            }
            .section-desc {
                font-size: 14px;
            }
        }

        .text-accent {
            color: var(--accent-primary);
        }

        .text-secondary-accent {
            color: var(--accent-secondary);
        }

        /* ============ 导航栏 ============ */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1040;
            background: rgba(14, 13, 18, 0.82);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border);
            transition: background var(--transition-base), border-color var(--transition-base);
        }

        .site-header.scrolled {
            background: rgba(14, 13, 18, 0.96);
            border-bottom-color: rgba(230, 46, 58, 0.35);
        }

        .site-header .nav-gradient-line {
            height: 2px;
            background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary), var(--accent-primary));
            opacity: 0.85;
        }

        .navbar {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 68px;
            padding: 0;
            position: relative;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 20px;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.01em;
            white-space: nowrap;
            z-index: 1055;
        }

        .navbar-brand .brand-mark {
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
            letter-spacing: -0.03em;
            box-shadow: 0 4px 12px rgba(230, 46, 58, 0.3);
        }

        .navbar-toggler {
            display: none;
            background: transparent;
            border: none;
            color: var(--text-primary);
            font-size: 24px;
            padding: 8px 12px;
            cursor: pointer;
            z-index: 1055;
            transition: color var(--transition-fast);
        }

        .navbar-toggler:hover {
            color: var(--accent-secondary);
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 4px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-menu li a {
            display: block;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-secondary);
            border-radius: var(--radius-sm);
            transition: color var(--transition-base), background var(--transition-base);
            position: relative;
            white-space: nowrap;
        }

        .nav-menu li a:hover {
            color: var(--text-primary);
            background: rgba(242, 238, 244, 0.06);
        }

        .nav-menu li a.active {
            color: var(--accent-primary);
            background: rgba(230, 46, 58, 0.1);
        }

        .nav-menu li a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 14px;
            right: 14px;
            height: 2px;
            background: var(--accent-primary);
            border-radius: 1px;
        }

        .nav-locator {
            position: relative;
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 14px;
            background: rgba(242, 238, 244, 0.06);
            border: 1px solid var(--border);
            border-radius: 20px;
            cursor: pointer;
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-base);
            user-select: none;
            white-space: nowrap;
        }

        .nav-locator:hover {
            border-color: var(--accent-secondary);
            color: var(--text-primary);
            background: rgba(245, 166, 35, 0.08);
        }

        .nav-locator .locator-icon {
            color: var(--accent-secondary);
            font-size: 14px;
        }

        .nav-locator .locator-items {
            display: none;
            position: absolute;
            top: calc(100% + 8px);
            right: 0;
            min-width: 180px;
            background: var(--bg-surface);
            border: 1px solid var(--border-strong);
            border-radius: var(--radius-md);
            box-shadow: 0 16px 40px rgba(0, 0, 0, 0.55);
            padding: 8px;
            z-index: 1100;
        }

        .nav-locator .locator-items.open {
            display: block;
            animation: locatorFadeIn 180ms ease-out;
        }

        @keyframes locatorFadeIn {
            from {
                opacity: 0;
                transform: translateY(-6px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .nav-locator .locator-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 9px 12px;
            border-radius: var(--radius-sm);
            font-size: 13px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition-fast);
            cursor: pointer;
        }

        .nav-locator .locator-item:hover {
            background: rgba(230, 46, 58, 0.1);
            color: var(--text-primary);
        }

        .nav-locator .locator-item i {
            color: var(--accent-secondary);
            font-size: 12px;
            width: 16px;
            text-align: center;
        }

        /* ============ 分类页 Header ============ */
        .category-header {
            padding-top: calc(68px + 48px);
            padding-bottom: 44px;
            background:
                radial-gradient(ellipse 500px 280px at 85% 20%, rgba(230, 46, 58, 0.1), transparent 70%),
                radial-gradient(ellipse 400px 240px at 15% 70%, rgba(245, 166, 35, 0.06), transparent 70%),
                var(--bg-base);
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--border);
        }

        .category-header::after {
            content: '';
            position: absolute;
            bottom: 0;
            right: 8%;
            width: 120px;
            height: 120px;
            background-image: radial-gradient(circle, rgba(230, 46, 58, 0.3) 1.5px, transparent 1.5px);
            background-size: 18px 18px;
            opacity: 0.5;
            pointer-events: none;
        }

        .category-header .breadcrumb-custom {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
            flex-wrap: wrap;
        }

        .category-header .breadcrumb-custom a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .category-header .breadcrumb-custom a:hover {
            color: var(--accent-secondary);
        }

        .category-header .breadcrumb-custom .separator {
            opacity: 0.55;
            font-size: 10px;
        }

        .category-header .breadcrumb-custom .current {
            color: var(--accent-primary);
            font-weight: 600;
        }

        .category-header h1 {
            font-size: 52px;
            font-weight: 800;
            letter-spacing: -0.02em;
            line-height: 1.15;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .category-header .header-desc {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.75;
            max-width: 620px;
            margin-bottom: 0;
        }

        @media (max-width: 768px) {
            .category-header {
                padding-top: calc(68px + 28px);
                padding-bottom: 28px;
            }
            .category-header h1 {
                font-size: 32px;
            }
            .category-header .header-desc {
                font-size: 14px;
            }
        }

        /* ============ 下载卡片网格 ============ */
        .download-section {
            background: var(--bg-base);
        }

        .download-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gutter);
            margin-bottom: 28px;
        }

        .download-card {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            display: flex;
            flex-direction: column;
        }

        .download-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(230, 46, 58, 0.4);
            background: var(--bg-surface-hover);
        }

        .download-card .card-img-wrap {
            position: relative;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-elevated);
        }

        .download-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 400ms ease-out;
        }

        .download-card:hover .card-img-wrap img {
            transform: scale(1.04);
        }

        .download-card .card-img-wrap .version-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(14, 13, 18, 0.78);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            border: 1px solid rgba(230, 46, 58, 0.5);
            color: var(--accent-secondary);
            font-size: 12px;
            font-weight: 700;
            padding: 5px 10px;
            border-radius: 20px;
            font-family: var(--font-num);
            letter-spacing: 0.03em;
        }

        .download-card .card-body {
            padding: 16px 18px 18px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .download-card .card-title {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.3;
        }

        .download-card .card-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-bottom: 10px;
            font-size: 12px;
            color: var(--text-muted);
        }

        .download-card .card-meta .meta-tag {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: rgba(242, 238, 244, 0.05);
            border: 1px solid var(--border);
            border-radius: 12px;
            padding: 3px 10px;
            font-size: 11px;
            font-weight: 500;
        }

        .download-card .card-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.65;
            margin-bottom: 14px;
            flex: 1;
        }

        .download-card .download-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            background: var(--accent-primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 10px 16px;
            font-size: 14px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-base);
            text-align: center;
            white-space: nowrap;
        }

        .download-card .download-btn:hover {
            background: var(--accent-deep);
            box-shadow: 0 6px 20px rgba(230, 46, 58, 0.3);
            transform: translateY(-1px);
        }

        .download-card .download-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 8px rgba(230, 46, 58, 0.25);
        }

        .download-card .download-btn.loading {
            background: var(--accent-deep);
            pointer-events: none;
            opacity: 0.85;
        }

        @media (max-width: 992px) {
            .download-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .download-grid {
                grid-template-columns: 1fr;
            }
        }

        .view-more-wrap {
            text-align: center;
            margin-top: 8px;
        }

        .view-more-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            font-weight: 600;
            color: var(--accent-secondary);
            transition: all var(--transition-base);
            padding: 8px 20px;
            border-radius: 20px;
            border: 1px solid rgba(245, 166, 35, 0.3);
            background: rgba(245, 166, 35, 0.06);
        }

        .view-more-link:hover {
            background: rgba(245, 166, 35, 0.12);
            border-color: var(--accent-secondary);
            color: var(--accent-secondary);
        }

        /* ============ 专题卡片 ============ */
        .topic-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .topic-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: var(--card-gutter);
        }

        .topic-card {
            background: var(--bg-base);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all var(--transition-base);
            cursor: pointer;
        }

        .topic-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(245, 166, 35, 0.4);
        }

        .topic-card .topic-img-wrap {
            aspect-ratio: 16 / 8;
            overflow: hidden;
            position: relative;
            background: var(--bg-elevated);
        }

        .topic-card .topic-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 350ms ease-out;
        }

        .topic-card:hover .topic-img-wrap img {
            transform: scale(1.05);
        }

        .topic-card .topic-body {
            padding: 16px 18px 18px;
        }

        .topic-card .topic-title {
            font-size: 16px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .topic-card .topic-title i {
            color: var(--accent-secondary);
            font-size: 15px;
        }

        .topic-card .topic-desc {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 0;
        }

        @media (max-width: 992px) {
            .topic-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 640px) {
            .topic-grid {
                grid-template-columns: 1fr;
            }
        }

        /* ============ 数据带 ============ */
        .data-strip-section {
            background: var(--bg-base);
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-card);
        }

        .data-strip .data-item {
            text-align: center;
            padding: 8px;
            border-right: 1px solid var(--border);
        }

        .data-strip .data-item:last-child {
            border-right: none;
        }

        .data-strip .data-number {
            font-family: var(--font-num);
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-secondary);
            letter-spacing: -0.02em;
            line-height: 1.2;
            font-feature-settings: "tnum";
        }

        .data-strip .data-label {
            font-size: 12px;
            color: var(--text-muted);
            margin-top: 4px;
            font-weight: 500;
        }

        @media (max-width: 768px) {
            .data-strip {
                grid-template-columns: repeat(2, 1fr);
                padding: 20px 16px;
            }
            .data-strip .data-item:nth-child(2) {
                border-right: none;
            }
            .data-strip .data-item {
                border-right: 1px solid var(--border);
                padding: 10px;
            }
            .data-strip .data-number {
                font-size: 24px;
            }
        }

        /* ============ CTA 转化带 ============ */
        .cta-band-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }

        .cta-band {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            flex-wrap: wrap;
            background: linear-gradient(135deg, rgba(230, 46, 58, 0.1), rgba(245, 166, 35, 0.06));
            border: 1px solid rgba(230, 46, 58, 0.25);
            border-radius: var(--radius-md);
            padding: 32px 36px;
        }

        .cta-band .cta-text {
            flex: 1;
            min-width: 240px;
        }

        .cta-band .cta-text h3 {
            font-size: 24px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.01em;
        }

        .cta-band .cta-text p {
            font-size: 14px;
            color: var(--text-secondary);
            margin-bottom: 0;
        }

        .cta-band .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: var(--accent-primary);
            color: #fff;
            border: none;
            border-radius: 10px;
            padding: 14px 28px;
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
            transition: all var(--transition-base);
            white-space: nowrap;
        }

        .cta-band .btn-cta:hover {
            background: var(--accent-deep);
            box-shadow: 0 8px 24px rgba(230, 46, 58, 0.35);
            transform: translateY(-2px);
        }

        @media (max-width: 640px) {
            .cta-band {
                flex-direction: column;
                text-align: center;
                padding: 24px 20px;
            }
            .cta-band .btn-cta {
                width: 100%;
                justify-content: center;
            }
        }

        /* ============ FAQ ============ */
        .faq-section {
            background: var(--bg-base);
        }

        .faq-accordion {
            max-width: 780px;
            margin: 0 auto;
        }

        .faq-accordion .faq-item {
            background: var(--bg-surface);
            border: 1px solid var(--border);
            border-radius: 10px;
            margin-bottom: 12px;
            overflow: hidden;
            transition: border-color var(--transition-base);
        }

        .faq-accordion .faq-item.active {
            border-left: 3px solid var(--accent-primary);
            border-color: rgba(230, 46, 58, 0.3);
        }

        .faq-accordion .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 16px 20px;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 15px;
            font-weight: 600;
            color: var(--text-primary);
            text-align: left;
            transition: color var(--transition-fast);
        }

        .faq-accordion .faq-question:hover {
            color: var(--accent-secondary);
        }

        .faq-accordion .faq-question .faq-icon {
            flex-shrink: 0;
            width: 20px;
            height: 20px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-secondary);
            font-size: 14px;
            transition: transform var(--transition-base);
        }

        .faq-accordion .faq-item.active .faq-question .faq-icon {
            transform: rotate(180deg);
        }

        .faq-accordion .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 320ms ease-out, padding 320ms ease-out;
            padding: 0 20px;
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
        }

        .faq-accordion .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 20px 18px;
        }

        /* ============ 底部面包屑 ============ */
        .bottom-breadcrumb-section {
            background: var(--bg-surface);
            border-top: 1px solid var(--border);
            padding-top: 24px;
            padding-bottom: 24px;
        }

        .bottom-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .bottom-breadcrumb a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .bottom-breadcrumb a:hover {
            color: var(--accent-secondary);
        }

        .bottom-breadcrumb .separator {
            opacity: 0.55;
            margin: 0 4px;
        }

        .bottom-breadcrumb .back-home {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent-secondary);
            font-weight: 600;
            transition: color var(--transition-fast);
        }

        .bottom-breadcrumb .back-home:hover {
            color: var(--accent-primary);
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #0A090D;
            border-top: 1px solid var(--border);
            padding-top: 56px;
            padding-bottom: 28px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 36px;
            margin-bottom: 36px;
        }

        .footer-brand .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 14px;
        }

        .footer-brand .footer-logo .brand-mark {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--accent-primary), var(--accent-deep));
            border-radius: 7px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            font-weight: 800;
            font-family: var(--font-num);
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            max-width: 340px;
        }

        .footer-brand .footer-locator {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .footer-brand .footer-locator i {
            color: var(--accent-secondary);
        }

        .footer-col h5 {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 14px;
            letter-spacing: 0.02em;
        }

        .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-col ul li {
            margin-bottom: 8px;
        }

        .footer-col ul li a {
            font-size: 13px;
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-col ul li a:hover {
            color: var(--accent-secondary);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 20px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-muted);
        }

        .footer-bottom .footer-links {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-bottom .footer-links a {
            color: var(--text-secondary);
            transition: color var(--transition-fast);
        }

        .footer-bottom .footer-links a:hover {
            color: var(--accent-secondary);
        }

        @media (max-width: 992px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 640px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .footer-bottom .footer-links {
                flex-wrap: wrap;
                justify-content: center;
            }
        }

        /* ============ 移动端导航 ============ */
        @media (max-width: 992px) {
            .navbar-toggler {
                display: block;
            }
            .nav-menu {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: stretch;
                background: rgba(14, 13, 18, 0.98);
                backdrop-filter: blur(20px);
                -webkit-backdrop-filter: blur(20px);
                border-bottom: 1px solid var(--border);
                padding: 14px 16px;
                z-index: 1060;
                max-height: calc(100vh - 100px);
                overflow-y: auto;
            }
            .nav-menu.open {
                display: flex;
                animation: navSlideDown 220ms ease-out;
            }
            .nav-menu li a {
                padding: 12px 14px;
                font-size: 15px;
                border-radius: var(--radius-sm);
            }
            .nav-menu li a.active::after {
                display: none;
            }
            .nav-locator {
                order: -1;
                margin-bottom: 8px;
                justify-content: flex-start;
                border-radius: var(--radius-sm);
            }
            .nav-locator .locator-items {
                position: static;
                display: none;
                box-shadow: none;
                border: 1px solid var(--border);
                margin-top: 8px;
                background: var(--bg-surface);
                animation: none;
            }
            .nav-locator .locator-items.open {
                display: block;
            }
        }

        @keyframes navSlideDown {
            from {
                opacity: 0;
                transform: translateY(-8px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* ============ 下载按钮加载动画 ============ */
        .download-btn.loading i {
            animation: spin 800ms linear infinite;
        }

        @keyframes spin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        /* ============ Toast 提示 ============ */
        .download-toast {
            position: fixed;
            bottom: 24px;
            left: 50%;
            transform: translateX(-50%) translateY(80px);
            background: var(--bg-surface);
            border: 1px solid rgba(245, 166, 35, 0.4);
            border-radius: 12px;
            padding: 12px 20px;
            font-size: 13px;
            font-weight: 600;
            color: var(--text-primary);
            box-shadow: 0 12px 32px rgba(0, 0, 0, 0.55);
            z-index: 1200;
            opacity: 0;
            transition: all 280ms ease-out;
            pointer-events: none;
            white-space: nowrap;
        }

        .download-toast.show {
            opacity: 1;
            transform: translateX(-50%) translateY(0);
        }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}