/* roulang page: index */
:root {
            --primary: #1a56db;
            --primary-hover: #1e40af;
            --secondary: #7c3aed;
            --accent: #f59e0b;
            --dark: #0f172a;
            --light: #f8fafc;
            --muted: #94a3b8;
            --surface: #ffffff;
            --border: #e2e8f0;
        }

        * {
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            background: var(--light);
            color: var(--dark);
            margin: 0;
            padding: 0;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        .layout {
            display: flex;
            min-height: 100vh;
        }

        .sidebar {
            width: 260px;
            flex-shrink: 0;
            background: var(--surface);
            border-right: 1px solid var(--border);
            padding: 1.5rem 1.25rem;
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            z-index: 50;
            overflow-y: auto;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            box-shadow: 2px 0 12px rgba(0,0,0,0.04);
        }

        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border);
            margin-bottom: 1.5rem;
        }

        .sidebar-logo-icon {
            width: 42px;
            height: 42px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 1.25rem;
            font-weight: 800;
            flex-shrink: 0;
        }

        .sidebar-logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--dark);
            line-height: 1.3;
            letter-spacing: -0.01em;
        }

        .sidebar-logo-text span {
            color: var(--primary);
        }

        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
            flex: 1;
        }

        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            padding: 0.7rem 1rem;
            border-radius: 10px;
            font-size: 0.95rem;
            font-weight: 500;
            color: #475569;
            transition: all 0.2s ease;
        }

        .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 1.05rem;
            color: var(--muted);
            transition: color 0.2s ease;
        }

        .sidebar-nav a:hover {
            background: #f1f5f9;
            color: var(--primary);
        }

        .sidebar-nav a:hover i {
            color: var(--primary);
        }

        .sidebar-nav a.active {
            background: rgba(26, 86, 219, 0.08);
            color: var(--primary);
            font-weight: 600;
        }

        .sidebar-nav a.active i {
            color: var(--primary);
        }

        .sidebar-footer {
            padding-top: 1.5rem;
            border-top: 1px solid var(--border);
            margin-top: auto;
        }

        .sidebar-footer p {
            font-size: 0.8rem;
            color: var(--muted);
            margin: 0;
            line-height: 1.5;
        }

        .main-content {
            margin-left: 260px;
            flex: 1;
            min-width: 0;
        }

        .mobile-header {
            display: none;
            background: var(--surface);
            border-bottom: 1px solid var(--border);
            padding: 0.75rem 1.25rem;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 40;
        }

        .mobile-header-logo {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1rem;
            color: var(--dark);
        }

        .mobile-header-logo .logo-icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 0.9rem;
            font-weight: 800;
        }

        .menu-toggle {
            background: none;
            border: none;
            font-size: 1.5rem;
            color: var(--dark);
            cursor: pointer;
            padding: 0.25rem;
            border-radius: 8px;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: background 0.2s ease;
        }

        .menu-toggle:hover {
            background: #f1f5f9;
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.4);
            z-index: 45;
            backdrop-filter: blur(4px);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 2rem;
        }

        .hero-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #1a56db 100%);
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            text-align: center;
            padding: 1rem 0;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255,255,255,0.1);
            backdrop-filter: blur(10px);
            padding: 0.4rem 1.2rem;
            border-radius: 100px;
            color: #e2e8f0;
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 1.5rem;
            border: 1px solid rgba(255,255,255,0.08);
        }

        .hero-title {
            font-size: 3.2rem;
            font-weight: 900;
            color: white;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin: 0 0 1rem 0;
        }

        .hero-title span {
            background: linear-gradient(135deg, #f59e0b, #f97316);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-sub {
            font-size: 1.2rem;
            color: #cbd5e1;
            max-width: 680px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.75rem 2rem;
            border-radius: 12px;
            font-weight: 600;
            font-size: 0.95rem;
            border: none;
            cursor: pointer;
            transition: all 0.25s ease;
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
            box-shadow: 0 4px 14px rgba(26, 86, 219, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(26, 86, 219, 0.45);
        }

        .btn-outline {
            background: transparent;
            color: white;
            border: 2px solid rgba(255,255,255,0.25);
        }

        .btn-outline:hover {
            background: rgba(255,255,255,0.08);
            border-color: rgba(255,255,255,0.5);
            transform: translateY(-2px);
        }

        .btn-accent {
            background: linear-gradient(135deg, #f59e0b, #f97316);
            color: white;
            box-shadow: 0 4px 14px rgba(245, 158, 11, 0.35);
        }

        .btn-accent:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
        }

        .btn-sm {
            padding: 0.5rem 1.25rem;
            font-size: 0.85rem;
            border-radius: 8px;
        }

        .section {
            padding: 4rem 0;
        }

        .section-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
            background: rgba(26, 86, 219, 0.08);
            color: var(--primary);
            padding: 0.3rem 1rem;
            border-radius: 100px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 0.75rem;
            letter-spacing: 0.02em;
        }

        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--dark);
            margin: 0 0 0.75rem 0;
            letter-spacing: -0.01em;
            line-height: 1.25;
        }

        .section-sub {
            font-size: 1.05rem;
            color: #64748b;
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.7;
        }

        .card {
            background: var(--surface);
            border-radius: 16px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -1px rgba(0,0,0,0.03);
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .card:hover {
            box-shadow: 0 12px 24px -8px rgba(0,0,0,0.1), 0 4px 8px -2px rgba(0,0,0,0.05);
            transform: translateY(-3px);
        }

        .card-body {
            padding: 1.5rem;
        }

        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 1.5rem;
        }

        .grid-4 {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.25rem;
        }

        .category-card {
            text-align: center;
            padding: 2rem 1.5rem;
            background: var(--surface);
            border-radius: 16px;
            border: 1px solid var(--border);
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .category-card:hover {
            box-shadow: 0 12px 24px -8px rgba(0,0,0,0.1);
            transform: translateY(-4px);
            border-color: var(--primary);
        }

        .category-icon {
            width: 64px;
            height: 64px;
            margin: 0 auto 1rem;
            background: linear-gradient(135deg, rgba(26,86,219,0.08), rgba(124,58,237,0.08));
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
            transition: all 0.3s ease;
        }

        .category-card:hover .category-icon {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: white;
        }

        .category-card h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin: 0 0 0.4rem 0;
            color: var(--dark);
        }

        .category-card p {
            font-size: 0.88rem;
            color: #64748b;
            margin: 0;
            line-height: 1.6;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            padding: 0.2rem 0.7rem;
            border-radius: 100px;
            font-size: 0.75rem;
            font-weight: 600;
        }

        .badge-primary {
            background: rgba(26, 86, 219, 0.1);
            color: var(--primary);
        }

        .badge-accent {
            background: rgba(245, 158, 11, 0.1);
            color: #b45309;
        }

        .badge-green {
            background: rgba(16, 185, 129, 0.1);
            color: #047857;
        }

        .news-item {
            display: flex;
            gap: 1.25rem;
            padding: 1.25rem 0;
            border-bottom: 1px solid var(--border);
            transition: all 0.2s ease;
        }

        .news-item:last-child {
            border-bottom: none;
        }

        .news-item:hover {
            padding-left: 0.5rem;
        }

        .news-meta {
            flex-shrink: 0;
            text-align: center;
            width: 56px;
        }

        .news-date {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary);
            line-height: 1.2;
            display: block;
        }

        .news-month {
            font-size: 0.7rem;
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }

        .news-content {
            flex: 1;
            min-width: 0;
        }

        .news-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin: 0 0 0.3rem 0;
            color: var(--dark);
            line-height: 1.4;
        }

        .news-content h4 a {
            color: var(--dark);
            transition: color 0.2s ease;
        }

        .news-content h4 a:hover {
            color: var(--primary);
        }

        .news-content p {
            font-size: 0.88rem;
            color: #64748b;
            margin: 0 0 0.4rem 0;
            line-height: 1.6;
        }

        .news-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 0.35rem;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
        }

        .stat-card {
            text-align: center;
            padding: 2rem 1rem;
            background: var(--surface);
            border-radius: 16px;
            border: 1px solid var(--border);
        }

        .stat-number {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
            line-height: 1.1;
            margin-bottom: 0.3rem;
        }

        .stat-label {
            font-size: 0.9rem;
            color: #64748b;
            font-weight: 500;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
            padding: 1.2rem 0;
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--dark);
            cursor: pointer;
            gap: 1rem;
        }

        .faq-question i {
            color: var(--primary);
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-question.active i {
            transform: rotate(180deg);
        }

        .faq-answer {
            padding-top: 0.75rem;
            font-size: 0.95rem;
            color: #64748b;
            line-height: 1.7;
            display: none;
        }

        .faq-answer.show {
            display: block;
        }

        .cta-section {
            background: linear-gradient(135deg, #0f172a, #1a56db);
            padding: 4rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.4;
        }

        .cta-content {
            position: relative;
            z-index: 1;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: white;
            margin: 0 0 0.75rem 0;
        }

        .cta-content p {
            color: #cbd5e1;
            font-size: 1.1rem;
            max-width: 600px;
            margin: 0 auto 2rem;
            line-height: 1.7;
        }

        .footer {
            background: var(--dark);
            color: #cbd5e1;
            padding: 3rem 0 1.5rem;
        }

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

        .footer-brand .logo-text {
            font-size: 1.1rem;
            font-weight: 700;
            color: white;
            margin-bottom: 0.75rem;
            display: flex;
            align-items: center;
            gap: 0.6rem;
        }

        .footer-brand .logo-text .icon {
            width: 32px;
            height: 32px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-weight: 800;
            font-size: 0.8rem;
        }

        .footer-brand p {
            font-size: 0.88rem;
            line-height: 1.7;
            margin: 0;
            color: #94a3b8;
        }

        .footer h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: white;
            margin: 0 0 1rem 0;
        }

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

        .footer ul li {
            margin-bottom: 0.5rem;
        }

        .footer ul li a {
            color: #94a3b8;
            font-size: 0.88rem;
            transition: color 0.2s ease;
        }

        .footer ul li a:hover {
            color: white;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            padding-top: 1.5rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.82rem;
            color: #64748b;
        }

        .empty-state {
            text-align: center;
            padding: 2rem 1rem;
            color: #94a3b8;
            font-size: 0.95rem;
        }

        @media (max-width: 1024px) {
            .grid-4 {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 4px 0 24px rgba(0,0,0,0.15);
            }
            .mobile-header {
                display: flex;
            }
            .mobile-overlay.active {
                display: block;
            }
            .main-content {
                margin-left: 0;
            }
            .container {
                padding: 0 1.25rem;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .grid-3, .grid-2 {
                grid-template-columns: 1fr;
            }
            .grid-4 {
                grid-template-columns: 1fr 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                text-align: center;
            }
            .footer-brand .logo-text {
                justify-content: center;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .news-item {
                flex-direction: column;
                gap: 0.5rem;
            }
            .news-meta {
                display: flex;
                align-items: center;
                gap: 0.5rem;
                width: auto;
                text-align: left;
            }
            .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-actions .btn {
                width: 100%;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .grid-4 {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .section {
                padding: 2.5rem 0;
            }
            .container {
                padding: 0 1rem;
            }
        }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #eab308;
            --primary-hover: #facc15;
            --primary-light: #fef9c3;
            --secondary: #1e293b;
            --secondary-hover: #334155;
            --accent: #06b6d4;
            --bg-body: #0f172a;
            --bg-card: #1e293b;
            --bg-card-hover: #273548;
            --bg-sidebar: #0b1121;
            --bg-footer: #0b1121;
            --text-primary: #f8fafc;
            --text-secondary: #cbd5e1;
            --text-muted: #94a3b8;
            --border-color: rgba(148, 163, 184, 0.15);
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 20px;
            --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
            --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.5);
            --transition: 0.3s ease;
            --sidebar-width: 240px;
        }
        /* ===== Reset / Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg-body);
            color: var(--text-primary);
            line-height: 1.6;
            display: flex;
            min-height: 100vh;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font: inherit;
            outline: none;
            border: none;
        }
        ul {
            list-style: none;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        /* ===== 左侧导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--bg-sidebar);
            border-right: 1px solid var(--border-color);
            padding: 32px 20px;
            display: flex;
            flex-direction: column;
            z-index: 100;
            overflow-y: auto;
            transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .sidebar-logo {
            display: flex;
            align-items: center;
            gap: 12px;
            padding-bottom: 28px;
            margin-bottom: 28px;
            border-bottom: 1px solid var(--border-color);
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }
        .sidebar-logo .logo-icon {
            width: 40px;
            height: 40px;
            background: var(--primary);
            color: #0f172a;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            flex-shrink: 0;
        }
        .sidebar-nav {
            display: flex;
            flex-direction: column;
            gap: 6px;
            flex: 1;
        }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: all var(--transition);
        }
        .sidebar-nav a i {
            width: 22px;
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            transition: color var(--transition);
        }
        .sidebar-nav a:hover {
            background: rgba(234, 179, 8, 0.08);
            color: var(--primary);
        }
        .sidebar-nav a:hover i {
            color: var(--primary);
        }
        .sidebar-nav a.active {
            background: rgba(234, 179, 8, 0.15);
            color: var(--primary);
            font-weight: 600;
            border-left: 3px solid var(--primary);
            padding-left: 13px;
        }
        .sidebar-nav a.active i {
            color: var(--primary);
        }
        .sidebar-cta {
            margin-top: 24px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
        }
        .sidebar-cta .btn {
            width: 100%;
            text-align: center;
            padding: 12px 0;
            border-radius: var(--radius-sm);
            font-weight: 600;
        }
        /* ===== 主内容区 ===== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        /* ===== 汉堡按钮（移动端） ===== */
        .menu-toggle {
            display: none;
            position: fixed;
            top: 18px;
            left: 18px;
            z-index: 200;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            color: var(--text-primary);
            width: 44px;
            height: 44px;
            border-radius: 10px;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            cursor: pointer;
            box-shadow: var(--shadow);
            transition: background var(--transition);
        }
        .menu-toggle:hover {
            background: var(--bg-card-hover);
        }
        .overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 90;
            backdrop-filter: blur(4px);
        }
        /* ===== 按钮 ===== */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
            padding: 12px 28px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition);
            border: none;
            line-height: 1.2;
        }
        .btn-primary {
            background: var(--primary);
            color: #0f172a;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(234, 179, 8, 0.3);
        }
        .btn-outline {
            background: transparent;
            color: var(--text-primary);
            border: 1.5px solid var(--border-color);
        }
        .btn-outline:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
        }
        .btn-lg {
            padding: 16px 40px;
            font-size: 1.05rem;
            border-radius: var(--radius);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.85rem;
        }
        /* ===== 板块标题 ===== */
        .section-title {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }
        .section-sub {
            color: var(--text-muted);
            font-size: 1.05rem;
            margin-bottom: 40px;
            max-width: 600px;
        }
        .section-tag {
            display: inline-block;
            background: rgba(234, 179, 8, 0.12);
            color: var(--primary);
            padding: 4px 16px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            margin-bottom: 12px;
        }
        /* ===== 卡片 ===== */
        .card {
            background: var(--bg-card);
            border-radius: var(--radius);
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .card:hover {
            background: var(--bg-card-hover);
            border-color: rgba(234, 179, 8, 0.2);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            background: rgba(234, 179, 8, 0.12);
            color: var(--primary);
            margin-bottom: 16px;
        }
        .card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--text-primary);
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
        }
        /* ===== 标签 / 徽章 ===== */
        .badge {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 20px;
            font-size: 0.78rem;
            font-weight: 600;
            background: rgba(6, 182, 212, 0.15);
            color: var(--accent);
        }
        .badge-hot {
            background: rgba(239, 68, 68, 0.15);
            color: #f87171;
        }
        .badge-new {
            background: rgba(34, 197, 94, 0.15);
            color: #4ade80;
        }
        /* ===== Hero ===== */
        .hero-category {
            padding: 80px 0 60px;
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }
        .hero-category::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(234, 179, 8, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }
        .hero-category .container {
            position: relative;
            z-index: 1;
        }
        .hero-category h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -1px;
        }
        .hero-category h1 span {
            color: var(--primary);
        }
        .hero-category p {
            font-size: 1.1rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin-bottom: 32px;
        }
        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 36px;
            padding-top: 36px;
            border-top: 1px solid var(--border-color);
        }
        .hero-stat h4 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--primary);
        }
        .hero-stat span {
            font-size: 0.9rem;
            color: var(--text-muted);
        }
        /* ===== 体育项目网格 ===== */
        .sports-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
            gap: 20px;
        }
        .sport-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 24px 16px;
            text-align: center;
            transition: all var(--transition);
            cursor: pointer;
        }
        .sport-item:hover {
            border-color: var(--primary);
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }
        .sport-item .sport-icon {
            font-size: 2.2rem;
            color: var(--primary);
            margin-bottom: 12px;
        }
        .sport-item h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .sport-item span {
            font-size: 0.82rem;
            color: var(--text-muted);
        }
        /* ===== 赛事列表 ===== */
        .match-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .match-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 18px 24px;
            transition: all var(--transition);
            flex-wrap: wrap;
            gap: 12px;
        }
        .match-item:hover {
            background: var(--bg-card-hover);
            border-color: rgba(234, 179, 8, 0.2);
        }
        .match-info {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
        }
        .match-info .teams {
            font-weight: 600;
            font-size: 1rem;
        }
        .match-info .league {
            font-size: 0.82rem;
            color: var(--text-muted);
            background: rgba(148, 163, 184, 0.1);
            padding: 2px 12px;
            border-radius: 12px;
        }
        .match-info .time {
            font-size: 0.85rem;
            color: var(--text-secondary);
        }
        .match-odds {
            display: flex;
            gap: 12px;
        }
        .match-odds .odd {
            padding: 6px 16px;
            background: rgba(234, 179, 8, 0.08);
            border-radius: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--primary);
            min-width: 52px;
            text-align: center;
        }
        /* ===== 优势板块 ===== */
        .advantage-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 24px;
        }
        .advantage-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius);
            padding: 28px 24px;
            transition: all var(--transition);
            text-align: center;
        }
        .advantage-card:hover {
            transform: translateY(-4px);
            border-color: rgba(234, 179, 8, 0.25);
            box-shadow: var(--shadow-hover);
        }
        .advantage-card .adv-icon {
            width: 60px;
            height: 60px;
            margin: 0 auto 18px;
            border-radius: 16px;
            background: rgba(234, 179, 8, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--primary);
        }
        .advantage-card h3 {
            font-size: 1.1rem;
            font-weight: 600;
            margin-bottom: 8px;
        }
        .advantage-card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        /* ===== FAQ ===== */
        .faq-grid {
            display: grid;
            gap: 16px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: all var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: rgba(234, 179, 8, 0.2);
        }
        .faq-item .faq-q {
            font-weight: 600;
            font-size: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-primary);
        }
        .faq-item .faq-q i {
            color: var(--text-muted);
            transition: transform var(--transition);
        }
        .faq-item .faq-a {
            margin-top: 12px;
            color: var(--text-secondary);
            font-size: 0.92rem;
            line-height: 1.7;
            display: none;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
            color: var(--primary);
        }
        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, #1e293b, #0f172a);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            margin: 60px 0;
        }
        .cta-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
        }
        .cta-section p {
            color: var(--text-secondary);
            font-size: 1.05rem;
            margin-bottom: 28px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-section .btn {
            margin: 4px 8px;
        }
        /* ===== 页脚（沿用首页结构） ===== */
        .footer {
            background: var(--bg-footer);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: auto;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-brand .logo-text {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }
        .footer-brand .logo-text .icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            color: #0f172a;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.2rem;
        }
        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.8;
            max-width: 320px;
        }
        .footer h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer ul li {
            margin-bottom: 10px;
        }
        .footer ul a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer ul a:hover {
            color: var(--primary);
        }
        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            padding-top: 24px;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-muted);
        }
        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-category h1 {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
            }
            .sidebar.open {
                transform: translateX(0);
            }
            .overlay.open {
                display: block;
            }
            .menu-toggle {
                display: flex;
            }
            .main-content {
                margin-left: 0;
                padding-top: 0;
            }
            .hero-category {
                padding: 100px 0 40px;
            }
            .hero-category h1 {
                font-size: 1.8rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .hero-stat h4 {
                font-size: 1.4rem;
            }
            .section-title {
                font-size: 1.5rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .cta-section {
                padding: 40px 24px;
                margin: 40px 0;
            }
            .cta-section h2 {
                font-size: 1.5rem;
            }
            .match-item {
                padding: 14px 16px;
            }
            .match-odds .odd {
                padding: 4px 12px;
                font-size: 0.82rem;
                min-width: 40px;
            }
            .sports-grid {
                grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
                gap: 12px;
            }
            .advantage-grid {
                grid-template-columns: 1fr;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .hero-category h1 {
                font-size: 1.5rem;
            }
            .hero-category p {
                font-size: 0.95rem;
            }
            .section-title {
                font-size: 1.25rem;
            }
            .sports-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 10px;
            }
            .sport-item {
                padding: 16px 8px;
            }
            .sport-item .sport-icon {
                font-size: 1.6rem;
            }
            .match-info {
                flex-direction: column;
                align-items: flex-start;
                gap: 6px;
            }
            .match-odds {
                width: 100%;
                justify-content: flex-end;
            }
            .btn-lg {
                padding: 12px 28px;
                font-size: 0.95rem;
            }
            .cta-section .btn {
                display: block;
                width: 100%;
                margin: 8px 0;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a56db;
            --primary-light: #3b82f6;
            --primary-dark: #1e40af;
            --primary-bg: #eff6ff;
            --secondary: #f59e0b;
            --secondary-light: #fbbf24;
            --accent: #10b981;
            --bg: #f1f5f9;
            --bg-card: #ffffff;
            --text: #0f172a;
            --text-muted: #475569;
            --text-light: #94a3b8;
            --border: #e2e8f0;
            --radius: 12px;
            --radius-sm: 8px;
            --radius-lg: 16px;
            --shadow: 0 4px 24px rgba(0,0,0,0.06);
            --shadow-hover: 0 12px 40px rgba(0,0,0,0.10);
            --transition: 0.25s ease;
            --sidebar-width: 260px;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; }
        body {
            font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }
        a { color: inherit; text-decoration: none; transition: color var(--transition); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        button, input, textarea { font-family: inherit; font-size: 1rem; outline: none; }
        ul { list-style: none; }

        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        /* 左侧导航 */
        .sidebar {
            width: var(--sidebar-width);
            background: var(--bg-card);
            border-right: 1px solid var(--border);
            padding: 2rem 1.25rem;
            display: flex;
            flex-direction: column;
            position: fixed;
            top: 0;
            left: 0;
            height: 100vh;
            z-index: 100;
            transition: transform var(--transition), box-shadow var(--transition);
            overflow-y: auto;
        }
        .sidebar-brand {
            display: flex;
            align-items: center;
            gap: 0.65rem;
            font-size: 1.35rem;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 2.5rem;
            padding-bottom: 1.25rem;
            border-bottom: 1px solid var(--border);
            letter-spacing: -0.01em;
        }
        .sidebar-brand .brand-icon {
            width: 40px; height: 40px;
            background: var(--primary);
            color: #fff;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 600;
            flex-shrink: 0;
        }
        .sidebar-nav { display: flex; flex-direction: column; gap: 0.35rem; flex: 1; }
        .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 0.85rem;
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-muted);
            transition: background var(--transition), color var(--transition), transform var(--transition);
        }
        .sidebar-nav a i { width: 1.25rem; text-align: center; font-size: 1.05rem; color: var(--text-light); transition: color var(--transition); }
        .sidebar-nav a:hover { background: var(--primary-bg); color: var(--primary); transform: translateX(4px); }
        .sidebar-nav a:hover i { color: var(--primary-light); }
        .sidebar-nav a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(26,86,219,0.30); }
        .sidebar-nav a.active i { color: #fff; }
        .sidebar-footer-text {
            margin-top: auto;
            padding-top: 1.5rem;
            font-size: 0.75rem;
            color: var(--text-light);
            border-top: 1px solid var(--border);
            text-align: center;
        }

        /* 右侧主内容 */
        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }
        .main-inner { flex: 1; padding: 2.5rem 3rem; max-width: 960px; width: 100%; margin: 0 auto; }

        /* 移动端顶部栏 */
        .mobile-topbar {
            display: none;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            padding: 0.85rem 1.25rem;
            align-items: center;
            justify-content: space-between;
            position: sticky;
            top: 0;
            z-index: 99;
        }
        .mobile-topbar .brand-sm {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            font-weight: 700;
            color: var(--primary);
            font-size: 1.1rem;
        }
        .mobile-topbar .brand-sm .brand-icon-sm {
            width: 32px; height: 32px;
            background: var(--primary);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            font-weight: 600;
        }
        .hamburger {
            background: none; border: none; font-size: 1.5rem;
            color: var(--text); cursor: pointer; padding: 0.25rem;
            transition: color var(--transition);
        }
        .hamburger:hover { color: var(--primary); }
        .sidebar-overlay {
            display: none;
            position: fixed; top: 0; left: 0; width: 100%; height: 100%;
            background: rgba(0,0,0,0.35);
            z-index: 99;
        }

        /* 文章板块 */
        .article-section { margin-bottom: 2.5rem; }

        /* 面包屑 */
        .breadcrumb {
            display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.6rem;
            font-size: 0.85rem; color: var(--text-muted); margin-bottom: 1.25rem;
        }
        .breadcrumb a { color: var(--text-light); transition: color var(--transition); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--text-light); font-size: 0.75rem; }
        .breadcrumb .current { color: var(--text); font-weight: 500; }

        /* 文章头部 */
        .article-header { margin-bottom: 2rem; }
        .article-header h1 {
            font-size: 2.2rem; font-weight: 800; line-height: 1.3;
            color: var(--text); margin-bottom: 1rem; letter-spacing: -0.02em;
        }
        .article-meta {
            display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1.5rem;
            font-size: 0.9rem; color: var(--text-muted);
        }
        .article-meta .meta-item { display: flex; align-items: center; gap: 0.4rem; }
        .article-meta .meta-item i { color: var(--text-light); font-size: 0.85rem; }
        .article-meta .category-badge {
            display: inline-block; padding: 0.2rem 0.9rem; border-radius: 20px;
            background: var(--primary-bg); color: var(--primary); font-size: 0.8rem;
            font-weight: 600; border: 1px solid rgba(26,86,219,0.15);
        }

        /* 文章正文 */
        .article-body {
            background: var(--bg-card); border-radius: var(--radius-lg);
            padding: 2.5rem; box-shadow: var(--shadow); border: 1px solid var(--border);
            font-size: 1.05rem; line-height: 1.85; color: var(--text);
        }
        .article-body p { margin-bottom: 1.25rem; }
        .article-body h2, .article-body h3, .article-body h4 {
            margin-top: 2rem; margin-bottom: 0.75rem; font-weight: 700; color: var(--text);
        }
        .article-body h2 { font-size: 1.6rem; }
        .article-body h3 { font-size: 1.3rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.25rem; padding-left: 1.5rem; }
        .article-body li { margin-bottom: 0.4rem; }
        .article-body a { color: var(--primary); text-decoration: underline; }
        .article-body a:hover { color: var(--primary-dark); }
        .article-body blockquote {
            border-left: 4px solid var(--primary-light); padding: 1rem 1.5rem;
            margin: 1.5rem 0; background: var(--primary-bg); border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted); font-style: italic;
        }
        .article-body img { margin: 1.5rem auto; border-radius: var(--radius-sm); }

        /* 标签 */
        .article-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 2rem; }
        .article-tags .tag {
            display: inline-block; padding: 0.3rem 1rem; border-radius: 20px;
            background: var(--bg); color: var(--text-muted); font-size: 0.8rem;
            border: 1px solid var(--border); transition: all var(--transition);
        }
        .article-tags .tag:hover { background: var(--primary-bg); color: var(--primary); border-color: var(--primary-light); }

        /* 上下篇导航 */
        .post-nav {
            display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem;
            margin: 2.5rem 0; padding: 1.5rem 0; border-top: 1px solid var(--border);
            border-bottom: 1px solid var(--border);
        }
        .post-nav a {
            display: flex; flex-direction: column; gap: 0.3rem;
            padding: 1rem 1.25rem; border-radius: var(--radius-sm);
            background: var(--bg-card); border: 1px solid var(--border);
            transition: all var(--transition);
        }
        .post-nav a:hover { border-color: var(--primary-light); box-shadow: var(--shadow-hover); transform: translateY(-2px); }
        .post-nav .nav-label { font-size: 0.75rem; color: var(--text-light); text-transform: uppercase; letter-spacing: 0.05em; }
        .post-nav .nav-title { font-size: 0.95rem; font-weight: 600; color: var(--text); }
        .post-nav .next { text-align: right; }

        /* 相关推荐 */
        .related-grid {
            display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
            gap: 1.25rem; margin-top: 1.5rem;
        }
        .related-card {
            background: var(--bg-card); border-radius: var(--radius);
            padding: 1.25rem; border: 1px solid var(--border);
            transition: all var(--transition); box-shadow: var(--shadow);
        }
        .related-card:hover { border-color: var(--primary-light); box-shadow: var(--shadow-hover); transform: translateY(-3px); }
        .related-card .rc-cat {
            font-size: 0.7rem; color: var(--primary); font-weight: 600;
            text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 0.4rem;
        }
        .related-card .rc-title { font-size: 0.95rem; font-weight: 600; color: var(--text); margin-bottom: 0.5rem; line-height: 1.4; }
        .related-card .rc-title a { transition: color var(--transition); }
        .related-card .rc-title a:hover { color: var(--primary); }
        .related-card .rc-date { font-size: 0.78rem; color: var(--text-light); }

        /* CTA */
        .article-cta {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-lg); padding: 2rem 2.5rem; text-align: center;
            color: #fff; margin-top: 2rem;
        }
        .article-cta h3 { font-size: 1.4rem; font-weight: 700; margin-bottom: 0.5rem; }
        .article-cta p { opacity: 0.9; margin-bottom: 1.25rem; font-size: 0.95rem; }
        .article-cta .btn-back {
            display: inline-block; padding: 0.7rem 2rem; border-radius: 50px;
            background: #fff; color: var(--primary); font-weight: 600;
            transition: all var(--transition); box-shadow: 0 4px 14px rgba(0,0,0,0.15);
        }
        .article-cta .btn-back:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.20); }

        /* 内容未找到 */
        .not-found-box {
            text-align: center; padding: 4rem 2rem;
            background: var(--bg-card); border-radius: var(--radius-lg);
            box-shadow: var(--shadow); border: 1px solid var(--border);
        }
        .not-found-box .nf-icon { font-size: 3.5rem; color: var(--text-light); margin-bottom: 1rem; }
        .not-found-box h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 0.75rem; }
        .not-found-box p { color: var(--text-muted); margin-bottom: 1.5rem; }
        .not-found-box .btn-home {
            display: inline-block; padding: 0.7rem 2rem; border-radius: 50px;
            background: var(--primary); color: #fff; font-weight: 600;
            transition: all var(--transition);
        }
        .not-found-box .btn-home:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(26,86,219,0.25); }

        /* 板块标题 */
        .section-title {
            font-size: 1.4rem; font-weight: 700; color: var(--text);
            margin-bottom: 0.25rem; letter-spacing: -0.01em;
        }
        .section-subtitle { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 1.25rem; }

        /* 页脚 */
        .footer {
            background: var(--text); color: rgba(255,255,255,0.85);
            padding: 3rem 0 1.5rem; margin-top: auto;
        }
        .footer .container { max-width: 960px; margin: 0 auto; padding: 0 1.5rem; }
        .footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
        .footer-brand .logo-text {
            display: flex; align-items: center; gap: 0.5rem;
            font-size: 1.15rem; font-weight: 700; color: #fff; margin-bottom: 0.75rem;
        }
        .footer-brand .logo-text .icon {
            width: 34px; height: 34px; background: var(--primary-light);
            border-radius: 8px; display: flex; align-items: center; justify-content: center;
            font-size: 1rem; font-weight: 600; color: #fff;
        }
        .footer-brand p { font-size: 0.85rem; line-height: 1.6; color: rgba(255,255,255,0.6); }
        .footer h4 { font-size: 0.9rem; font-weight: 600; color: #fff; margin-bottom: 0.75rem; }
        .footer ul li { margin-bottom: 0.4rem; }
        .footer ul li a { font-size: 0.85rem; color: rgba(255,255,255,0.55); transition: color var(--transition); }
        .footer ul li a:hover { color: var(--primary-light); }
        .footer-bottom {
            display: flex; flex-wrap: wrap; justify-content: space-between;
            align-items: center; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.08);
            font-size: 0.78rem; color: rgba(255,255,255,0.4);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .main-inner { padding: 2rem 1.5rem; }
            .article-body { padding: 1.75rem; }
            .footer-grid { grid-template-columns: 1fr 1fr; }
        }
        @media (max-width: 768px) {
            .sidebar { transform: translateX(-100%); box-shadow: none; }
            .sidebar.open { transform: translateX(0); box-shadow: 0 0 40px rgba(0,0,0,0.15); }
            .sidebar-overlay.open { display: block; }
            .mobile-topbar { display: flex; }
            .main-content { margin-left: 0; }
            .main-inner { padding: 1.5rem 1.25rem; }
            .article-header h1 { font-size: 1.6rem; }
            .article-body { padding: 1.25rem; font-size: 0.98rem; }
            .post-nav { grid-template-columns: 1fr; }
            .post-nav .next { text-align: left; }
            .related-grid { grid-template-columns: 1fr 1fr; }
            .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; }
            .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
            .article-cta { padding: 1.5rem; }
        }
        @media (max-width: 520px) {
            .mobile-topbar { padding: 0.65rem 1rem; }
            .main-inner { padding: 1rem; }
            .article-header h1 { font-size: 1.35rem; }
            .article-body { padding: 1rem; font-size: 0.93rem; border-radius: var(--radius); }
            .related-grid { grid-template-columns: 1fr; }
            .article-meta { gap: 0.5rem 1rem; font-size: 0.82rem; }
            .breadcrumb { font-size: 0.78rem; }
            .section-title { font-size: 1.15rem; }
            .article-cta h3 { font-size: 1.1rem; }
            .not-found-box { padding: 2.5rem 1rem; }
            .not-found-box .nf-icon { font-size: 2.5rem; }
        }

/* roulang page: category2 */
:root {
            --primary: #e50914;
            --primary-dark: #b20710;
            --primary-light: #ff2a2a;
            --accent: #ff6b35;
            --accent-dark: #e55a2b;
            --bg-dark: #0a0a0f;
            --bg-card: #14141f;
            --bg-card-hover: #1c1c2e;
            --bg-surface: #1a1a2e;
            --text-primary: #f5f5f5;
            --text-secondary: #b0b0c0;
            --text-muted: #6b6b80;
            --border-color: #2a2a40;
            --border-light: #3a3a50;
            --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.5);
            --shadow-hover: 0 12px 48px rgba(229, 9, 20, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg-dark);
            color: var(--text-primary);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            display: flex;
            min-height: 100vh;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            transition: var(--transition);
        }

        /* ===== 左侧竖向导航 ===== */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            bottom: 0;
            width: 240px;
            background: var(--bg-card);
            border-right: 1px solid var(--border-color);
            display: flex;
            flex-direction: column;
            z-index: 1000;
            padding: 0;
            overflow-y: auto;
            backdrop-filter: blur(8px);
        }

        .sidebar .logo-area {
            padding: 28px 24px 20px;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-shrink: 0;
        }

        .sidebar .logo-area .logo-icon {
            width: 44px;
            height: 44px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            font-weight: 800;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 16px rgba(229, 9, 20, 0.3);
        }

        .sidebar .logo-area .logo-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: 0.5px;
            line-height: 1.3;
        }

        .sidebar .logo-area .logo-text span {
            color: var(--primary);
        }

        .sidebar .sidebar-nav {
            flex: 1;
            padding: 16px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .sidebar .sidebar-nav a {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 12px 16px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
        }

        .sidebar .sidebar-nav a i {
            width: 20px;
            text-align: center;
            font-size: 16px;
            flex-shrink: 0;
        }

        .sidebar .sidebar-nav a:hover {
            background: var(--bg-surface);
            color: var(--text-primary);
        }

        .sidebar .sidebar-nav a.active {
            background: linear-gradient(135deg, rgba(229, 9, 20, 0.15), rgba(255, 107, 53, 0.08));
            color: var(--primary-light);
            font-weight: 600;
            border-left: 3px solid var(--primary);
        }

        .sidebar .sidebar-nav a.active::before {
            content: '';
            position: absolute;
            left: -12px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 0 4px 4px 0;
        }

        .sidebar .sidebar-footer {
            padding: 16px 20px;
            border-top: 1px solid var(--border-color);
            font-size: 12px;
            color: var(--text-muted);
            text-align: center;
            flex-shrink: 0;
        }

        /* ===== 主内容区 ===== */
        .main-wrapper {
            margin-left: 240px;
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
        }

        /* ===== 移动端顶部栏 ===== */
        .mobile-header {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 64px;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
            z-index: 999;
            padding: 0 20px;
            align-items: center;
            justify-content: space-between;
            backdrop-filter: blur(8px);
        }

        .mobile-header .logo-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .mobile-header .logo-text .logo-icon {
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }

        .mobile-header .menu-toggle {
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 26px;
            cursor: pointer;
            padding: 6px;
            border-radius: 6px;
            transition: var(--transition);
        }

        .mobile-header .menu-toggle:hover {
            background: var(--bg-surface);
        }

        .mobile-overlay {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.7);
            z-index: 998;
            backdrop-filter: blur(4px);
        }

        /* ===== 通用容器 ===== */
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
            width: 100%;
        }

        /* ===== 板块通用 ===== */
        .section {
            padding: 80px 0;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }

        .section-subtitle {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 640px;
            line-height: 1.6;
        }

        .section-label {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(229, 9, 20, 0.12);
            padding: 4px 14px;
            border-radius: 20px;
            margin-bottom: 12px;
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        /* ===== Hero ===== */
        .hero {
            padding: 100px 0 80px;
            background: linear-gradient(160deg, #0a0a1a 0%, #14142a 50%, #1a0a1a 100%);
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(229, 9, 20, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 500px;
            height: 500px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(229, 9, 20, 0.12);
            border: 1px solid rgba(229, 9, 20, 0.2);
            padding: 6px 18px;
            border-radius: 30px;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary-light);
            margin-bottom: 24px;
        }

        .hero-badge i {
            font-size: 14px;
        }

        .hero h1 {
            font-size: 52px;
            font-weight: 900;
            color: #fff;
            line-height: 1.1;
            margin-bottom: 20px;
            letter-spacing: -1px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 18px;
            color: var(--text-secondary);
            max-width: 600px;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-size: 16px;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            text-decoration: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 24px rgba(229, 9, 20, 0.35);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 32px rgba(229, 9, 20, 0.5);
        }

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

        .btn-secondary {
            background: var(--bg-surface);
            color: var(--text-primary);
            border: 1px solid var(--border-color);
        }

        .btn-secondary:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-2px);
        }

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

        .btn-outline-light {
            background: transparent;
            color: var(--text-primary);
            border: 1px solid var(--border-light);
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.05);
            border-color: var(--text-secondary);
        }

        /* ===== 电竞项目卡片 ===== */
        .game-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
            gap: 24px;
        }

        .game-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .game-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

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

        .game-card .game-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            margin-bottom: 18px;
            background: rgba(229, 9, 20, 0.1);
            color: var(--primary-light);
        }

        .game-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 8px;
        }

        .game-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.6;
            margin-bottom: 16px;
        }

        .game-card .game-stats {
            display: flex;
            gap: 16px;
            font-size: 13px;
            color: var(--text-muted);
        }

        .game-card .game-stats span {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .game-card .game-stats i {
            color: var(--accent);
        }

        /* ===== 特色功能 ===== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }

        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            transition: var(--transition);
            text-align: center;
        }

        .feature-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .feature-card .f-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            background: linear-gradient(135deg, rgba(229, 9, 20, 0.12), rgba(255, 107, 53, 0.08));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 28px;
            color: var(--primary-light);
            margin: 0 auto 20px;
        }

        .feature-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 10px;
        }

        .feature-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== 数据统计 ===== */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
            gap: 24px;
        }

        .stat-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
            transform: translateY(-2px);
        }

        .stat-card .stat-number {
            font-size: 40px;
            font-weight: 900;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }

        .stat-card .stat-label {
            font-size: 14px;
            color: var(--text-secondary);
            margin-top: 6px;
        }

        /* ===== 赛事时间线 ===== */
        .timeline {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .timeline-item {
            display: flex;
            gap: 20px;
            align-items: flex-start;
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: var(--transition);
        }

        .timeline-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
        }

        .timeline-item .tl-time {
            min-width: 80px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-light);
            padding-top: 2px;
        }

        .timeline-item .tl-body {
            flex: 1;
        }

        .timeline-item .tl-body h4 {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 4px;
        }

        .timeline-item .tl-body p {
            font-size: 14px;
            color: var(--text-secondary);
        }

        .timeline-item .tl-badge {
            font-size: 12px;
            font-weight: 600;
            padding: 2px 12px;
            border-radius: 20px;
            background: rgba(229, 9, 20, 0.12);
            color: var(--primary-light);
            flex-shrink: 0;
            align-self: center;
        }

        /* ===== FAQ ===== */
        .faq-list {
            display: flex;
            flex-direction: column;
            gap: 12px;
            max-width: 800px;
        }

        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-sm);
            padding: 20px 24px;
            transition: var(--transition);
        }

        .faq-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-light);
        }

        .faq-item .faq-q {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
        }

        .faq-item .faq-q i {
            color: var(--text-muted);
            transition: var(--transition);
        }

        .faq-item .faq-a {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-top: 12px;
            padding-top: 12px;
            border-top: 1px solid var(--border-color);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(160deg, #14142a 0%, #1a0a1a 50%, #0a0a1a 100%);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: 50%;
            transform: translateX(-50%);
            width: 700px;
            height: 700px;
            background: radial-gradient(circle, rgba(229, 9, 20, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .cta-section h2 {
            font-size: 36px;
            font-weight: 900;
            color: #fff;
            margin-bottom: 16px;
            position: relative;
        }

        .cta-section p {
            font-size: 16px;
            color: var(--text-secondary);
            max-width: 560px;
            margin: 0 auto 28px;
            position: relative;
        }

        .cta-section .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 16px;
            position: relative;
        }

        /* ===== 页脚 ===== */
        .footer {
            background: var(--bg-card);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 30px;
            margin-top: auto;
        }

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

        .footer .footer-brand .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }

        .footer .footer-brand .logo-text .icon {
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
        }

        .footer .footer-brand p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            max-width: 360px;
        }

        .footer h4 {
            font-size: 15px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .footer ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

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

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

        .footer .footer-bottom {
            border-top: 1px solid var(--border-color);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .sidebar {
                width: 200px;
            }
            .main-wrapper {
                margin-left: 200px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .hero h1 {
                font-size: 42px;
            }
            .section-title {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            .sidebar {
                display: none;
            }
            .mobile-header {
                display: flex;
            }
            .main-wrapper {
                margin-left: 0;
                padding-top: 64px;
            }
            .mobile-overlay.active {
                display: block;
            }
            .sidebar.mobile-open {
                display: flex;
                position: fixed;
                top: 64px;
                left: 0;
                bottom: 0;
                width: 280px;
                z-index: 1001;
                border-right: 1px solid var(--border-color);
                border-top: 1px solid var(--border-color);
            }
            .hero {
                padding: 60px 0 50px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero p {
                font-size: 16px;
            }
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 24px;
            }
            .game-grid {
                grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
                gap: 16px;
            }
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
            .cta-section {
                padding: 40px 24px;
            }
            .cta-section h2 {
                font-size: 26px;
            }
            .footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .timeline-item {
                flex-direction: column;
                gap: 8px;
            }
            .timeline-item .tl-time {
                min-width: auto;
            }
            .container {
                padding: 0 16px;
            }
        }

        @media (max-width: 520px) {
            .hero h1 {
                font-size: 26px;
            }
            .hero-actions {
                flex-direction: column;
            }
            .btn {
                width: 100%;
                justify-content: center;
            }
            .game-grid {
                grid-template-columns: 1fr;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-card .stat-number {
                font-size: 30px;
            }
            .section-title {
                font-size: 22px;
            }
            .sidebar.mobile-open {
                width: 100%;
            }
            .cta-section h2 {
                font-size: 22px;
            }
        }

        /* ===== 辅助 ===== */
        .text-gradient {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 12px;
        }
        .gap-4 {
            gap: 16px;
        }
        .gap-6 {
            gap: 24px;
        }

        .mt-2 {
            margin-top: 8px;
        }
        .mt-4 {
            margin-top: 16px;
        }
        .mt-6 {
            margin-top: 24px;
        }
        .mt-8 {
            margin-top: 32px;
        }
        .mt-10 {
            margin-top: 40px;
        }
        .mt-12 {
            margin-top: 48px;
        }

        .mb-2 {
            margin-bottom: 8px;
        }
        .mb-4 {
            margin-bottom: 16px;
        }
        .mb-6 {
            margin-bottom: 24px;
        }
        .mb-8 {
            margin-bottom: 32px;
        }

        .text-center {
            text-align: center;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }