/* roulang page: index */
:root {
            --primary: #1a3c5e;
            --primary-dark: #0f2a42;
            --primary-light: #2a5580;
            --accent: #c8963e;
            --accent-light: #d4a94f;
            --accent-dark: #a07828;
            --bg-white: #ffffff;
            --bg-light: #f6f7f9;
            --bg-lighter: #fafbfc;
            --bg-gray: #eef1f5;
            --text-primary: #1a1f2b;
            --text-secondary: #4a5568;
            --text-muted: #7a8699;
            --text-light: #a0aab5;
            --border-color: #e2e7ed;
            --border-light: #edf1f5;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16);
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --sidebar-width: 250px;
            --sidebar-collapsed: 64px;
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', sans-serif;
            --font-body: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            font-family: var(--font-body);
            color: var(--text-primary);
            background: var(--bg-white);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        button:focus-visible,
        a:focus-visible,
        input:focus-visible {
            outline: 3px solid rgba(26, 60, 94, 0.35);
            outline-offset: 2px;
            border-radius: 4px;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: var(--font-heading);
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1.3;
        }

        /* ========== SIDEBAR NAVIGATION ========== */
        .app-shell {
            display: flex;
            min-height: 100vh;
        }

        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--primary);
            z-index: 100;
            display: flex;
            flex-direction: column;
            box-shadow: 4px 0 30px rgba(0, 0, 0, 0.15);
            transition: transform var(--transition-normal), width var(--transition-normal);
            overflow-y: auto;
            overflow-x: hidden;
        }

        .sidebar-brand {
            padding: 24px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.12);
            flex-shrink: 0;
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 12px;
            color: #ffffff;
            font-family: var(--font-heading);
            font-weight: 700;
            font-size: 1.25rem;
            letter-spacing: 0.02em;
            white-space: nowrap;
        }
        .sidebar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            flex-shrink: 0;
            color: #fff;
        }

        .sidebar-nav-list {
            list-style: none;
            margin: 0;
            padding: 12px 12px;
            flex: 1;
        }
        .sidebar-nav-list li {
            margin-bottom: 3px;
        }
        .sidebar-nav-list a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px 16px;
            border-radius: 8px;
            color: rgba(255, 255, 255, 0.8);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            white-space: nowrap;
            position: relative;
        }
        .sidebar-nav-list a i {
            width: 20px;
            text-align: center;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .sidebar-nav-list a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
        }
        .sidebar-nav-list a.active {
            background: rgba(255, 255, 255, 0.13);
            color: #ffffff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent);
        }
        .sidebar-nav-list a .nav-badge {
            margin-left: auto;
            background: var(--accent);
            color: #fff;
            font-size: 0.7rem;
            padding: 3px 8px;
            border-radius: 20px;
            font-weight: 600;
            letter-spacing: 0.03em;
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        .sidebar-footer-info p {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.75rem;
            margin: 0;
            line-height: 1.5;
            white-space: nowrap;
        }

        /* ========== MAIN CONTENT AREA ========== */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            background: var(--bg-white);
            min-height: 100vh;
            transition: margin-left var(--transition-normal);
            width: calc(100% - var(--sidebar-width));
        }

        /* Mobile header bar */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--primary);
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
        }
        .mobile-topbar .hamburger-btn {
            background: none;
            border: none;
            color: #fff;
            font-size: 1.4rem;
            cursor: pointer;
            padding: 6px;
            margin-right: 12px;
            border-radius: 6px;
            transition: background var(--transition-fast);
        }
        .mobile-topbar .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.1);
        }
        .mobile-topbar .mobile-brand {
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            font-family: var(--font-heading);
            letter-spacing: 0.02em;
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 98;
        }
        .sidebar-overlay.active {
            display: block;
        }

        /* ========== CONTAINERS & SECTIONS ========== */
        .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .section-padding {
            padding: 60px 0;
        }
        .section-padding-lg {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 40px 0;
        }
        .section-heading {
            text-align: center;
            margin-bottom: 44px;
        }
        .section-heading .section-tag {
            display: inline-block;
            background: rgba(26, 60, 94, 0.06);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            text-transform: uppercase;
            letter-spacing: 0.08em;
            padding: 6px 16px;
            border-radius: 20px;
            margin-bottom: 12px;
        }
        .section-heading h2 {
            font-size: 2rem;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .section-heading p {
            color: var(--text-muted);
            font-size: 1rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ========== HERO SECTION ========== */
        .hero-section {
            background: linear-gradient(160deg, #0f2a42 0%, #1a3c5e 40%, #1a4a6e 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            color: #ffffff;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -120px;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.08);
            pointer-events: none;
        }
        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -80px;
            left: -100px;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .hero-bg-overlay {
            position: absolute;
            inset: 0;
            background-image: url('assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            opacity: 0.13;
            pointer-events: none;
        }
        .hero-inner {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            gap: 40px;
            flex-wrap: wrap;
        }
        .hero-text {
            flex: 1 1 480px;
            min-width: 280px;
        }
        .hero-text .hero-badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.12);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #ffffff;
            padding: 7px 18px;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            margin-bottom: 18px;
        }
        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: #ffffff;
            margin: 0 0 16px;
            line-height: 1.25;
            letter-spacing: 0.01em;
        }
        .hero-text h1 span {
            color: var(--accent-light);
        }
        .hero-text .hero-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.7;
            margin-bottom: 24px;
            max-width: 520px;
        }
        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            cursor: pointer;
            transition: all var(--transition-fast);
            border: none;
            text-decoration: none;
            letter-spacing: 0.02em;
        }
        .btn-primary {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }
        .btn-primary:hover {
            background: var(--accent-light);
            color: #fff;
            box-shadow: 0 6px 24px rgba(200, 150, 62, 0.45);
            transform: translateY(-2px);
        }
        .btn-outline-light {
            background: transparent;
            color: #ffffff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-outline-dark {
            background: transparent;
            color: var(--primary);
            border: 2px solid var(--primary);
        }
        .btn-outline-dark:hover {
            background: var(--primary);
            color: #fff;
            transform: translateY(-2px);
        }
        .btn-sm {
            padding: 8px 18px;
            font-size: 0.82rem;
            border-radius: 6px;
        }
        .btn-accent-sm {
            background: var(--accent);
            color: #fff;
            padding: 8px 18px;
            border-radius: 6px;
            font-size: 0.82rem;
            font-weight: 600;
            border: none;
            cursor: pointer;
            transition: all var(--transition-fast);
        }
        .btn-accent-sm:hover {
            background: var(--accent-light);
            transform: translateY(-1px);
            box-shadow: 0 4px 14px rgba(200, 150, 62, 0.3);
        }
        .hero-visual {
            flex: 0 0 360px;
            min-width: 260px;
        }
        .hero-visual img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-xl);
            width: 100%;
            object-fit: cover;
            aspect-ratio: 4/3;
        }

        /* ========== STATS STRIP ========== */
        .stats-strip {
            background: #ffffff;
            border-bottom: 1px solid var(--border-light);
            padding: 28px 0;
        }
        .stats-grid {
            display: flex;
            flex-wrap: wrap;
            gap: 20px;
            justify-content: center;
            text-align: center;
        }
        .stat-item {
            flex: 1 1 140px;
            min-width: 120px;
            padding: 12px;
        }
        .stat-number {
            font-size: 2.4rem;
            font-weight: 800;
            color: var(--primary);
            font-family: var(--font-heading);
            line-height: 1;
            margin-bottom: 4px;
        }
        .stat-number .stat-plus {
            color: var(--accent);
            font-size: 1.2rem;
            vertical-align: super;
        }
        .stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* ========== CARDS ========== */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
            gap: 24px;
        }
        .card-grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 28px;
        }
        .card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            padding: 28px 24px;
            transition: all var(--transition-normal);
            border: 1px solid var(--border-light);
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .card-icon {
            width: 54px;
            height: 54px;
            border-radius: var(--radius-md);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            margin-bottom: 16px;
            flex-shrink: 0;
        }
        .card-icon.blue {
            background: #e8f0f8;
            color: var(--primary);
        }
        .card-icon.gold {
            background: #fdf5e6;
            color: var(--accent);
        }
        .card-icon.green {
            background: #e8f5ec;
            color: #2d8a4e;
        }
        .card-icon.purple {
            background: #f0e8f6;
            color: #6b3fa0;
        }
        .card h3 {
            font-size: 1.15rem;
            margin: 0 0 8px;
            color: var(--text-primary);
        }
        .card p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin: 0;
            line-height: 1.6;
        }

        /* Category entry cards */
        .category-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: all var(--transition-normal);
            cursor: pointer;
            display: block;
            text-decoration: none;
            color: inherit;
        }
        .category-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-5px);
            border-color: transparent;
        }
        .category-card img {
            width: 100%;
            height: 190px;
            object-fit: cover;
            display: block;
        }
        .category-card-body {
            padding: 20px 22px;
        }
        .category-card-body h3 {
            font-size: 1.1rem;
            margin: 0 0 6px;
        }
        .category-card-body p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
            line-height: 1.5;
        }
        .category-card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.85rem;
            margin-top: 10px;
            transition: gap var(--transition-fast);
        }
        .category-card-body .card-link:hover {
            gap: 8px;
        }

        /* ========== BRAND STORY ========== */
        .brand-story-block {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            align-items: center;
        }
        .brand-story-block .story-image {
            flex: 0 0 420px;
            min-width: 280px;
        }
        .brand-story-block .story-image img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            width: 100%;
            aspect-ratio: 5/4;
            object-fit: cover;
        }
        .brand-story-block .story-text {
            flex: 1 1 350px;
            min-width: 260px;
        }
        .brand-story-block .story-text h2 {
            font-size: 1.8rem;
            margin-bottom: 16px;
        }
        .brand-story-block .story-text p {
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 12px;
            font-size: 0.95rem;
        }

        /* ========== PARTNER LOGOS ========== */
        .partner-strip {
            display: flex;
            flex-wrap: wrap;
            gap: 24px;
            align-items: center;
            justify-content: center;
            padding: 10px 0;
        }
        .partner-logo-placeholder {
            width: 110px;
            height: 50px;
            background: var(--bg-gray);
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            color: var(--text-muted);
            font-size: 0.8rem;
            letter-spacing: 0.04em;
            transition: all var(--transition-fast);
        }
        .partner-logo-placeholder:hover {
            background: #e2e7ed;
            color: var(--text-primary);
        }

        /* ========== TESTIMONIALS ========== */
        .testimonial-card {
            background: #ffffff;
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            position: relative;
        }
        .testimonial-card .quote-icon {
            font-size: 2.5rem;
            color: var(--accent);
            opacity: 0.5;
            line-height: 1;
            margin-bottom: 8px;
        }
        .testimonial-card p {
            color: var(--text-secondary);
            font-size: 0.93rem;
            line-height: 1.7;
            margin-bottom: 16px;
        }
        .testimonial-card .author {
            font-weight: 700;
            color: var(--text-primary);
            font-size: 0.9rem;
        }
        .testimonial-card .author-role {
            color: var(--text-muted);
            font-size: 0.78rem;
        }

        /* ========== NEWS LIST ========== */
        .news-list-item {
            display: flex;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            transition: all var(--transition-fast);
        }
        .news-list-item:hover {
            background: var(--bg-lighter);
            margin: 0 -12px;
            padding-left: 12px;
            padding-right: 12px;
            border-radius: var(--radius-sm);
        }
        .news-list-item .news-date {
            flex-shrink: 0;
            width: 60px;
            text-align: center;
            background: var(--bg-gray);
            border-radius: var(--radius-sm);
            padding: 8px 6px;
            font-weight: 700;
            color: var(--primary);
            font-size: 0.8rem;
            line-height: 1.3;
            align-self: flex-start;
        }
        .news-list-item .news-date span {
            display: block;
            font-size: 1.3rem;
        }
        .news-list-item .news-info h4 {
            font-size: 1rem;
            margin: 0 0 4px;
        }
        .news-list-item .news-info p {
            color: var(--text-muted);
            font-size: 0.83rem;
            margin: 0 0 6px;
            line-height: 1.5;
        }

        /* ========== FAQ ========== */
        .faq-item {
            border-bottom: 1px solid var(--border-light);
            padding: 18px 0;
            cursor: pointer;
        }
        .faq-question {
            font-weight: 700;
            font-size: 1.02rem;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-primary);
            transition: color var(--transition-fast);
        }
        .faq-question i {
            color: var(--accent);
            font-size: 0.9rem;
            transition: transform var(--transition-fast);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition-slow), padding var(--transition-normal);
            color: var(--text-secondary);
            font-size: 0.9rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-top: 10px;
        }
        .faq-item.open .faq-question i {
            transform: rotate(45deg);
        }
        .faq-item:hover .faq-question {
            color: var(--accent);
        }

        /* ========== CTA SECTION ========== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            border-radius: var(--radius-xl);
            padding: 50px 40px;
            text-align: center;
            color: #ffffff;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            top: -40px;
            right: -80px;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            pointer-events: none;
        }
        .cta-section h2 {
            color: #ffffff;
            font-size: 1.9rem;
            margin-bottom: 12px;
            position: relative;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.8);
            margin-bottom: 24px;
            position: relative;
            font-size: 1rem;
        }
        .cta-section .btn-primary {
            position: relative;
            font-size: 1rem;
            padding: 15px 36px;
        }

        /* ========== FOOTER ========== */
        .site-footer {
            background: #0f1e2d;
            color: rgba(255, 255, 255, 0.7);
            padding: 40px 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
            gap: 28px;
        }
        .footer-col h4 {
            color: #ffffff;
            font-size: 0.95rem;
            margin-bottom: 14px;
            letter-spacing: 0.03em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-col ul li {
            margin-bottom: 7px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 32px;
            padding-top: 20px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .footer-bottom strong {
            color: rgba(255, 255, 255, 0.7);
        }

        /* ========== RESPONSIVE ========== */
        @media (max-width: 1024px) {
            .sidebar-nav {
                transform: translateX(-100%);
                width: var(--sidebar-width);
            }
            .sidebar-nav.mobile-open {
                transform: translateX(0);
            }
            .mobile-topbar {
                display: flex;
            }
            .sidebar-overlay.active {
                display: block;
            }
            .main-content {
                margin-left: 0;
                width: 100%;
                padding-top: 56px;
            }
            .content-container {
                padding: 0 20px;
            }
            .hero-inner {
                flex-direction: column;
                text-align: center;
            }
            .hero-visual {
                flex: 0 0 auto;
                max-width: 380px;
                width: 100%;
            }
            .hero-text h1 {
                font-size: 2rem;
            }
            .hero-actions {
                justify-content: center;
            }
            .brand-story-block .story-image {
                flex: 0 0 100%;
            }
            .section-heading h2 {
                font-size: 1.6rem;
            }
        }
        @media (max-width: 768px) {
            .hero-text h1 {
                font-size: 1.7rem;
            }
            .hero-desc {
                font-size: 0.9rem;
            }
            .stats-grid {
                gap: 10px;
            }
            .stat-number {
                font-size: 1.8rem;
            }
            .card-grid,
            .card-grid-3 {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-lg {
                padding: 50px 0;
            }
            .cta-section {
                padding: 36px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .content-container {
                padding: 0 14px;
            }
            .hero-text h1 {
                font-size: 1.4rem;
            }
            .hero-visual {
                max-width: 100%;
            }
            .btn {
                padding: 11px 20px;
                font-size: 0.85rem;
            }
            .stats-grid {
                flex-direction: column;
                gap: 4px;
            }
            .stat-item {
                padding: 8px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .section-heading h2 {
                font-size: 1.35rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .brand-story-block {
                gap: 20px;
            }
            .brand-story-block .story-image {
                flex: 0 0 100%;
            }
            .news-list-item {
                flex-direction: column;
                gap: 8px;
            }
            .news-list-item .news-date {
                width: 100%;
                display: flex;
                gap: 8px;
                align-items: center;
                justify-content: center;
                padding: 6px 10px;
            }
        }

/* roulang page: category2 */
:root {
      --primary: #0b2b5e;
      --primary-light: #1a3f7a;
      --accent: #c8a44e;
      --accent-hover: #b08a2e;
      --bg: #f7f9fc;
      --surface: #ffffff;
      --text: #1e2b3c;
      --text-soft: #556677;
      --text-light: #8a99aa;
      --border: #e2e8f0;
      --border-light: #edf2f7;
      --radius: 12px;
      --radius-sm: 8px;
      --radius-xs: 6px;
      --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
      --shadow: 0 8px 24px rgba(0,0,0,0.06);
      --shadow-hover: 0 16px 36px rgba(0,0,0,0.09);
      --sidebar-width: 260px;
      --header-height: 70px;
      --font-main: 'Inter', 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    }

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

    body {
      font-family: var(--font-main);
      background: var(--bg);
      color: var(--text);
      line-height: 1.6;
      display: flex;
      min-height: 100vh;
    }

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

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

    button, .btn, input[type="text"], input[type="email"] {
      font-family: inherit;
    }

    .content-container {
      max-width: 1280px;
      margin: 0 auto;
      padding: 0 28px;
    }

    /* ---------- 左侧导航 shell ---------- */
    .sidebar-nav {
      position: fixed;
      top: 0;
      left: 0;
      width: var(--sidebar-width);
      height: 100vh;
      background: linear-gradient(180deg, #0a2540 0%, #0b2b5e 60%, #0d3466 100%);
      color: #ffffff;
      display: flex;
      flex-direction: column;
      z-index: 40;
      box-shadow: 4px 0 24px rgba(0,0,0,0.18);
      padding: 24px 0 20px;
      transition: transform 0.3s cubic-bezier(0.4,0,0.2,1);
    }

    .sidebar-brand {
      padding: 8px 20px 28px 24px;
      border-bottom: 1px solid rgba(255,255,255,0.12);
      margin-bottom: 20px;
    }
    .sidebar-brand a {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 1.5rem;
      font-weight: 700;
      letter-spacing: 0.3px;
      color: #fff;
    }
    .brand-icon {
      font-size: 1.8rem;
      color: var(--accent);
      display: flex;
      align-items: center;
    }
    .sidebar-nav-list {
      list-style: none;
      flex: 1;
      padding: 0 14px;
    }
    .sidebar-nav-list li {
      margin-bottom: 6px;
    }
    .sidebar-nav-list a {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 12px 16px;
      border-radius: var(--radius-sm);
      font-size: 0.98rem;
      color: rgba(255,255,255,0.8);
      transition: all 0.2s ease;
      position: relative;
    }
    .sidebar-nav-list a i {
      width: 20px;
      text-align: center;
      font-size: 1.1rem;
    }
    .sidebar-nav-list a:hover {
      background: rgba(255,255,255,0.08);
      color: #fff;
    }
    .sidebar-nav-list a.active {
      background: rgba(200,164,78,0.2);
      color: var(--accent);
      font-weight: 600;
      box-shadow: inset 3px 0 0 var(--accent);
    }
    .nav-badge {
      background: #e74c3c;
      color: #fff;
      font-size: 0.7rem;
      padding: 2px 8px;
      border-radius: 20px;
      margin-left: 4px;
      font-weight: 600;
      letter-spacing: 0.3px;
    }
    .sidebar-footer-info {
      margin-top: auto;
      padding: 20px 24px 0;
      border-top: 1px solid rgba(255,255,255,0.1);
      font-size: 0.75rem;
      color: rgba(255,255,255,0.5);
      line-height: 1.8;
    }

    /* 主区域 */
    .main-wrapper {
      margin-left: var(--sidebar-width);
      flex: 1;
      display: flex;
      flex-direction: column;
      min-height: 100vh;
    }

    /* 移动端顶部栏 */
    .mobile-topbar {
      display: none;
      background: var(--primary);
      color: #fff;
      padding: 16px 20px;
      align-items: center;
      justify-content: space-between;
      position: sticky;
      top: 0;
      z-index: 35;
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    .mobile-logo a {
      color: #fff;
      font-weight: 700;
      font-size: 1.25rem;
      display: flex;
      align-items: center;
      gap: 8px;
    }
    .menu-toggle {
      background: none;
      border: none;
      color: #fff;
      font-size: 1.6rem;
      cursor: pointer;
      padding: 6px 10px;
      border-radius: var(--radius-xs);
      transition: background 0.2s;
    }
    .menu-toggle:hover {
      background: rgba(255,255,255,0.1);
    }
    .sidebar-overlay {
      display: none;
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.5);
      z-index: 38;
    }

    /* 页面头图 */
    .page-hero {
      background: linear-gradient(135deg, #0a2540 0%, #123b66 100%);
      color: #fff;
      padding: 56px 0 48px;
      position: relative;
      overflow: hidden;
    }
    .page-hero::after {
      content: '';
      position: absolute;
      right: -60px;
      top: -80px;
      width: 360px;
      height: 360px;
      background: radial-gradient(circle, rgba(200,164,78,0.25) 0%, transparent 70%);
      border-radius: 50%;
      pointer-events: none;
    }
    .page-hero-content {
      position: relative;
      z-index: 2;
    }
    .page-hero h1 {
      font-size: 2.5rem;
      font-weight: 700;
      margin-bottom: 12px;
      letter-spacing: 0.3px;
    }
    .page-hero .sub {
      font-size: 1.1rem;
      color: rgba(255,255,255,0.75);
      max-width: 700px;
      line-height: 1.7;
    }
    .breadcrumb {
      font-size: 0.85rem;
      color: rgba(255,255,255,0.6);
      margin-bottom: 16px;
    }
    .breadcrumb a {
      color: var(--accent);
    }

    /* 板块通用 */
    .section {
      padding: 60px 0;
    }
    .section-title {
      font-size: 1.8rem;
      font-weight: 700;
      margin-bottom: 12px;
      color: var(--primary);
    }
    .section-sub {
      color: var(--text-soft);
      font-size: 1rem;
      margin-bottom: 36px;
      max-width: 720px;
    }

    /* 卡片网格 */
    .card-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
      gap: 24px;
    }
    .data-card {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 28px 24px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
      transition: all 0.25s ease;
      display: flex;
      flex-direction: column;
    }
    .data-card:hover {
      box-shadow: var(--shadow-hover);
      transform: translateY(-3px);
    }
    .card-icon {
      font-size: 2.2rem;
      color: var(--accent);
      margin-bottom: 16px;
    }
    .data-card h3 {
      font-size: 1.25rem;
      font-weight: 700;
      margin-bottom: 10px;
    }
    .data-card p {
      color: var(--text-soft);
      font-size: 0.92rem;
      line-height: 1.7;
      flex: 1;
    }
    .card-stat {
      display: flex;
      align-items: baseline;
      gap: 8px;
      margin: 16px 0 12px;
    }
    .stat-number {
      font-size: 2.2rem;
      font-weight: 800;
      color: var(--primary);
    }
    .stat-label {
      color: var(--text-light);
      font-size: 0.85rem;
    }

    /* 数据展示表 */
    .data-table-wrap {
      background: var(--surface);
      border-radius: var(--radius);
      overflow-x: auto;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
      margin-top: 20px;
    }
    .modern-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 600px;
      font-size: 0.92rem;
    }
    .modern-table th {
      background: #f1f5f9;
      padding: 14px 16px;
      text-align: left;
      font-weight: 700;
      color: var(--primary);
      border-bottom: 2px solid var(--border);
    }
    .modern-table td {
      padding: 14px 16px;
      border-bottom: 1px solid var(--border-light);
      color: var(--text);
    }
    .trend-up {
      color: #16a34a;
      font-weight: 600;
    }
    .trend-down {
      color: #dc2626;
      font-weight: 600;
    }

    .feature-list {
      list-style: none;
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
      gap: 16px;
    }
    .feature-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      background: var(--surface);
      padding: 18px 18px;
      border-radius: var(--radius-sm);
      box-shadow: var(--shadow-sm);
      font-size: 0.95rem;
      border-left: 4px solid var(--accent);
    }
    .feature-list li i {
      color: var(--accent);
      margin-top: 2px;
      font-size: 1.1rem;
    }

    .faq-block {
      background: var(--surface);
      border-radius: var(--radius);
      padding: 32px 28px;
      box-shadow: var(--shadow-sm);
      border: 1px solid var(--border-light);
    }
    .faq-item {
      border-bottom: 1px solid var(--border-light);
      padding: 18px 0;
    }
    .faq-item:last-child {
      border-bottom: none;
    }
    .faq-q {
      font-weight: 700;
      font-size: 1.1rem;
      cursor: pointer;
      display: flex;
      justify-content: space-between;
      align-items: center;
      color: var(--primary);
    }
    .faq-a {
      color: var(--text-soft);
      margin-top: 10px;
      line-height: 1.7;
      display: none;
    }
    .faq-item.open .faq-a {
      display: block;
    }

    .cta-box {
      background: linear-gradient(135deg, #0b2b5e, #1a447a);
      border-radius: var(--radius);
      padding: 48px 32px;
      text-align: center;
      color: #fff;
      box-shadow: var(--shadow);
    }
    .cta-box h3 {
      font-size: 1.8rem;
      margin-bottom: 14px;
    }
    .btn-accent {
      background: var(--accent);
      color: #0a2540;
      font-weight: 700;
      padding: 14px 32px;
      border-radius: 40px;
      display: inline-block;
      margin-top: 18px;
      transition: background 0.2s, transform 0.15s;
    }
    .btn-accent:hover {
      background: var(--accent-hover);
      transform: translateY(-2px);
      color: #0a2540;
    }

    .site-footer {
      background: #0a1a2e;
      color: rgba(255,255,255,0.8);
      padding: 48px 0 24px;
      margin-top: auto;
    }
    .footer-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
      gap: 28px;
      margin-bottom: 28px;
    }
    .footer-col h4 {
      color: #fff;
      font-weight: 700;
      margin-bottom: 14px;
      font-size: 1rem;
    }
    .footer-col ul {
      list-style: none;
    }
    .footer-col li {
      margin-bottom: 8px;
    }
    .footer-col a {
      color: rgba(255,255,255,0.55);
      font-size: 0.88rem;
    }
    .footer-col a:hover {
      color: var(--accent);
    }
    .footer-bottom {
      border-top: 1px solid rgba(255,255,255,0.1);
      padding-top: 18px;
      text-align: center;
      font-size: 0.8rem;
      color: rgba(255,255,255,0.45);
    }

    @media (max-width: 1024px) {
      :root {
        --sidebar-width: 240px;
      }
      .page-hero h1 {
        font-size: 2rem;
      }
    }
    @media (max-width: 768px) {
      .sidebar-nav {
        transform: translateX(-100%);
      }
      .sidebar-nav.open {
        transform: translateX(0);
      }
      .sidebar-overlay.show {
        display: block;
      }
      .mobile-topbar {
        display: flex;
      }
      .main-wrapper {
        margin-left: 0;
      }
      .page-hero {
        padding: 40px 0 32px;
      }
      .section {
        padding: 40px 0;
      }
      .card-grid {
        grid-template-columns: 1fr;
      }
    }
    @media (max-width: 520px) {
      .content-container {
        padding: 0 16px;
      }
      .page-hero h1 {
        font-size: 1.7rem;
      }
    }

/* roulang page: category4 */
:root {
            --primary: #0f2940;
            --primary-light: #1a3f5c;
            --primary-dark: #081a2a;
            --accent: #c8963e;
            --accent-light: #e0b860;
            --accent-glow: #f0d078;
            --bg: #f5f6f8;
            --surface: #ffffff;
            --surface-alt: #eef1f5;
            --text: #1a1f2b;
            --text-secondary: #5a6270;
            --text-muted: #8b919e;
            --border: #dde2e8;
            --border-light: #eef1f5;
            --radius-sm: 8px;
            --radius: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --shadow-xs: 0 1px 3px rgba(0, 0, 0, 0.04);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow: 0 4px 18px rgba(0, 0, 0, 0.07);
            --shadow-hover: 0 10px 32px rgba(0, 0, 0, 0.11);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.13);
            --sidebar-width: 260px;
            --topbar-height: 56px;
            --transition-fast: 0.18s ease;
            --transition: 0.28s cubic-bezier(0.4, 0, 0.2, 1);
            --font-stack: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-stack);
            line-height: 1.7;
            color: var(--text);
            background: var(--bg);
            display: flex;
            min-height: 100vh;
            flex-direction: row;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color var(--transition-fast);
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
        }
        ul {
            list-style: none;
            padding: 0;
        }
        input,
        select,
        textarea {
            font-family: inherit;
        }
        :focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 4px;
        }

        /* ============ SIDEBAR NAV ============ */
        .sidebar {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 40%, var(--primary-light) 100%);
            color: #ffffff;
            display: flex;
            flex-direction: column;
            z-index: 100;
            box-shadow: 4px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition);
            overflow-y: auto;
            overflow-x: hidden;
            border-right: 1px solid rgba(255, 255, 255, 0.06);
        }
        .sidebar-brand {
            padding: 22px 20px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #ffffff;
            font-size: 1.2rem;
            font-weight: 700;
            letter-spacing: 0.03em;
            transition: opacity var(--transition-fast);
            white-space: nowrap;
        }
        .sidebar-brand a:hover {
            opacity: 0.88;
        }
        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--accent);
            border-radius: var(--radius-sm);
            font-size: 1.05rem;
            flex-shrink: 0;
            box-shadow: 0 3px 10px rgba(200, 150, 62, 0.35);
        }
        .sidebar-nav-list {
            flex: 1;
            padding: 14px 12px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.94rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .sidebar-nav-list li a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #ffffff;
            transform: translateX(2px);
        }
        .sidebar-nav-list li a.active {
            background: rgba(255, 255, 255, 0.13);
            color: #ffffff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--accent);
            border-radius: var(--radius-sm);
        }
        .sidebar-nav-list li a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #e74c3c;
            color: #fff;
            font-size: 0.68rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 20px;
            margin-left: auto;
            line-height: 1;
            animation: pulse-badge 2s infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.08);
            }
        }
        .sidebar-footer-info {
            padding: 14px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            flex-shrink: 0;
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
        }
        .sidebar-footer-info p {
            margin: 0;
        }

        /* ============ MOBILE TOPBAR ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: var(--topbar-height);
            background: var(--primary-dark);
            color: #fff;
            z-index: 99;
            align-items: center;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
            gap: 10px;
        }
        .mobile-topbar .topbar-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            font-weight: 700;
            font-size: 1rem;
            color: #fff;
            flex: 1;
        }
        .mobile-topbar .topbar-brand .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 0.85rem;
        }
        .menu-toggle-btn {
            width: 38px;
            height: 38px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: background var(--transition-fast);
        }
        .menu-toggle-btn:hover {
            background: rgba(255, 255, 255, 0.2);
        }
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 98;
            transition: opacity var(--transition);
            opacity: 0;
            pointer-events: none;
        }
        .sidebar-overlay.show {
            display: block;
            opacity: 1;
            pointer-events: auto;
        }

        /* ============ MAIN CONTENT AREA ============ */
        .main-content {
            margin-left: var(--sidebar-width);
            flex: 1;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition);
        }

        /* ============ PAGE BANNER ============ */
        .page-banner {
            position: relative;
            min-height: 340px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--primary-dark) url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            color: #ffffff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(8, 26, 42, 0.75) 0%, rgba(15, 41, 64, 0.82) 50%, rgba(8, 26, 42, 0.9) 100%);
            z-index: 1;
        }
        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
            padding: 40px 24px;
            max-width: 720px;
        }
        .page-banner .banner-tag {
            display: inline-block;
            background: var(--accent);
            color: #fff;
            font-size: 0.8rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.04em;
            margin-bottom: 16px;
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: 0.02em;
            margin-bottom: 12px;
            line-height: 1.25;
        }
        .page-banner .banner-desc {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.82);
            max-width: 560px;
            margin: 0 auto;
            line-height: 1.7;
        }

        /* ============ CONTENT CONTAINER ============ */
        .content-container {
            width: 100%;
            max-width: 1160px;
            margin: 0 auto;
            padding: 0 28px;
        }
        .section-spacing {
            padding: 56px 0;
        }
        .section-spacing-lg {
            padding: 64px 0;
        }
        .section-title {
            font-size: 1.7rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .section-subtitle {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 32px;
            line-height: 1.6;
        }
        .section-header {
            text-align: center;
            margin-bottom: 36px;
        }
        .section-header .section-title {
            margin-bottom: 6px;
        }
        .divider-accent {
            width: 48px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
            margin: 0 auto 18px;
        }

        /* ============ CARDS ============ */
        .league-card {
            background: var(--surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
            border: 1px solid var(--border-light);
        }
        .league-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .league-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e9ecf1;
        }
        .league-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition);
        }
        .league-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .league-card .card-img-wrap .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--accent);
            color: #fff;
            font-size: 0.73rem;
            font-weight: 700;
            padding: 4px 10px;
            border-radius: 14px;
            letter-spacing: 0.03em;
            z-index: 2;
        }
        .league-card .card-body {
            padding: 18px 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .league-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text);
        }
        .league-card .card-body .card-meta {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }
        .league-card .card-body .card-desc {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.55;
            flex: 1;
        }
        .league-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.88rem;
            margin-top: 12px;
            transition: gap var(--transition-fast);
        }
        .league-card .card-body .card-link:hover {
            gap: 10px;
            color: #b58530;
        }

        /* ============ STATS ROW ============ */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--surface);
            border-radius: var(--radius);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-card:hover {
            box-shadow: var(--shadow);
            transform: translateY(-2px);
        }
        .stat-card .stat-icon {
            font-size: 1.8rem;
            color: var(--accent);
            margin-bottom: 10px;
        }
        .stat-card .stat-value {
            font-size: 2rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0.02em;
        }
        .stat-card .stat-label {
            font-size: 0.82rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ============ ARTICLE LIST ============ */
        .article-list-item {
            display: flex;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid var(--border-light);
            align-items: flex-start;
            transition: background var(--transition-fast);
        }
        .article-list-item:last-child {
            border-bottom: none;
        }
        .article-list-item .article-thumb {
            width: 140px;
            height: 95px;
            border-radius: var(--radius-sm);
            overflow: hidden;
            flex-shrink: 0;
            background: #e9ecf1;
        }
        .article-list-item .article-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .article-list-item .article-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .article-list-item .article-info .article-meta {
            font-size: 0.78rem;
            color: var(--text-muted);
            margin-bottom: 6px;
        }
        .article-list-item .article-info .article-excerpt {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.5;
        }
        .article-list-item:hover {
            background: rgba(200, 150, 62, 0.03);
            border-radius: var(--radius-sm);
            padding-left: 10px;
            padding-right: 10px;
        }

        /* ============ CTA BANNER ============ */
        .cta-banner {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            border-radius: var(--radius-xl);
            padding: 44px 36px;
            text-align: center;
            color: #ffffff;
            box-shadow: var(--shadow-lg);
            position: relative;
            overflow: hidden;
        }
        .cta-banner::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(200, 150, 62, 0.15);
            pointer-events: none;
        }
        .cta-banner h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-banner p {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.78);
            margin-bottom: 22px;
            position: relative;
            z-index: 1;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #fff;
            font-weight: 700;
            padding: 13px 28px;
            border-radius: 30px;
            font-size: 0.95rem;
            letter-spacing: 0.03em;
            transition: all var(--transition);
            position: relative;
            z-index: 1;
            box-shadow: 0 4px 16px rgba(200, 150, 62, 0.35);
        }
        .btn-cta:hover {
            background: #d4a348;
            box-shadow: 0 6px 22px rgba(200, 150, 62, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }
        .faq-item {
            background: var(--surface);
            border-radius: var(--radius);
            margin-bottom: 12px;
            box-shadow: var(--shadow-xs);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            box-shadow: var(--shadow-sm);
        }
        .faq-item summary {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 0.98rem;
            cursor: pointer;
            color: var(--text);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            user-select: none;
            list-style: none;
        }
        .faq-item summary::-webkit-details-marker {
            display: none;
        }
        .faq-item summary::after {
            content: '\f078';
            font-family: 'Font Awesome 6 Free';
            font-weight: 900;
            font-size: 0.75rem;
            color: var(--text-muted);
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item[open] summary::after {
            transform: rotate(180deg);
            color: var(--accent);
        }
        .faq-item[open] summary {
            color: var(--primary);
        }
        .faq-answer {
            padding: 0 20px 18px;
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.65;
        }

        /* ============ FOOTER ============ */
        .site-footer {
            background: var(--primary-dark);
            color: #ffffff;
            padding: 44px 0 0;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
            gap: 32px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #ffffff;
            letter-spacing: 0.02em;
        }
        .site-footer .footer-col ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--accent-light);
        }
        .site-footer .footer-bottom {
            text-align: center;
            padding: 16px 0;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .site-footer .footer-bottom strong {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 600;
        }

        /* ============ RESPONSIVE ============ */
        @media (max-width: 1024px) {
            .sidebar {
                transform: translateX(-100%);
                box-shadow: none;
            }
            .sidebar.open {
                transform: translateX(0);
                box-shadow: 6px 0 30px rgba(0, 0, 0, 0.35);
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: var(--topbar-height);
            }
            .page-banner {
                min-height: 260px;
            }
            .page-banner h1 {
                font-size: 1.9rem;
            }
            .page-banner .banner-desc {
                font-size: 0.9rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
            .content-container {
                padding: 0 16px;
            }
            .section-spacing {
                padding: 36px 0;
            }
            .section-spacing-lg {
                padding: 44px 0;
            }
        }
        @media (max-width: 640px) {
            .page-banner {
                min-height: 220px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner .banner-desc {
                font-size: 0.82rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card {
                padding: 16px 12px;
            }
            .stat-card .stat-value {
                font-size: 1.5rem;
            }
            .article-list-item {
                flex-direction: column;
                gap: 10px;
            }
            .article-list-item .article-thumb {
                width: 100%;
                height: 160px;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-banner {
                padding: 28px 18px;
            }
            .cta-banner h3 {
                font-size: 1.25rem;
            }
            .section-title {
                font-size: 1.35rem;
            }
            .league-card .card-body h3 {
                font-size: 1rem;
            }
        }
        @media (max-width: 420px) {
            .stats-row {
                grid-template-columns: 1fr;
            }
            .page-banner h1 {
                font-size: 1.3rem;
            }
        }

/* roulang page: category1 */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #0b1c3a;
            --color-primary-light: #132d56;
            --color-accent: #c99a4c;
            --color-accent-light: #dbb86a;
            --color-accent-dark: #a87b32;
            --color-bg: #ffffff;
            --color-bg-alt: #f6f7f9;
            --color-bg-card: #ffffff;
            --color-text: #1a1d26;
            --color-text-secondary: #5a6070;
            --color-text-muted: #8b919e;
            --color-border: #e2e5ea;
            --color-border-light: #eef0f4;
            --color-white: #ffffff;
            --color-success: #2e9a5e;
            --color-warning: #e8a020;
            --color-danger: #d14343;
            --sidebar-width: 260px;
            --sidebar-bg: #0b1c3a;
            --sidebar-text: #c5cdd8;
            --sidebar-active: #c99a4c;
            --sidebar-hover-bg: #132842;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.07);
            --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
            --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
            --transition-fast: 0.18s ease;
            --transition-normal: 0.28s ease;
            --font-sans: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
            --font-mono: 'SF Mono', 'Cascadia Code', 'Consolas', monospace;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background: var(--color-bg-alt);
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            outline: none;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.35;
            font-weight: 700;
            color: var(--color-text);
        }

        p {
            margin: 0 0 0.8em;
        }

        /* ============ 布局容器 ============ */
        .app-layout {
            display: flex;
            min-height: 100vh;
        }

        .main-content {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
            transition: margin-left var(--transition-normal);
            background: var(--color-bg-alt);
        }

        .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }

        .section-padding {
            padding: 60px 0;
        }

        .section-padding-sm {
            padding: 40px 0;
        }

        /* ============ 侧边栏导航 ============ */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--sidebar-bg);
            z-index: 1000;
            display: flex;
            flex-direction: column;
            overflow-y: auto;
            overflow-x: hidden;
            transition: transform var(--transition-normal);
            box-shadow: 2px 0 20px rgba(0, 0, 0, 0.18);
            scrollbar-width: thin;
            scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
        }

        .sidebar-nav::-webkit-scrollbar {
            width: 4px;
        }

        .sidebar-nav::-webkit-scrollbar-track {
            background: transparent;
        }

        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.12);
            border-radius: 4px;
        }

        .sidebar-brand {
            padding: 22px 20px 18px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--color-white);
            letter-spacing: 0.03em;
            transition: opacity var(--transition-fast);
        }

        .sidebar-brand a:hover {
            opacity: 0.85;
        }

        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-accent);
            border-radius: var(--radius-sm);
            font-size: 1rem;
            color: #fff;
            flex-shrink: 0;
        }

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

        .sidebar-nav-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 14px;
            border-radius: var(--radius-sm);
            font-size: 0.94rem;
            font-weight: 500;
            color: var(--sidebar-text);
            transition: all var(--transition-fast);
            position: relative;
        }

        .sidebar-nav-list li a i {
            width: 20px;
            text-align: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .sidebar-nav-list li a:hover {
            background: var(--sidebar-hover-bg);
            color: #e8ecf2;
        }

        .sidebar-nav-list li a.active {
            background: rgba(201, 154, 76, 0.15);
            color: var(--sidebar-active);
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--sidebar-active);
        }

        .nav-badge {
            display: inline-block;
            background: var(--color-danger);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 10px;
            margin-left: auto;
            line-height: 1.4;
            letter-spacing: 0.02em;
            animation: pulse-badge 2s infinite;
        }

        @keyframes pulse-badge {
            0%,
            100% {
                opacity: 1;
            }
            50% {
                opacity: 0.65;
            }
        }

        .sidebar-footer-info {
            padding: 16px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            flex-shrink: 0;
        }

        .sidebar-footer-info p {
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.35);
            margin: 2px 0;
            line-height: 1.5;
        }

        /* ============ 移动端顶部栏 ============ */
        .mobile-topbar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 56px;
            background: var(--sidebar-bg);
            z-index: 999;
            align-items: center;
            justify-content: space-between;
            padding: 0 16px;
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
        }

        .mobile-topbar .mobile-logo {
            font-size: 1.05rem;
            font-weight: 700;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .mobile-topbar .mobile-logo .brand-icon {
            width: 30px;
            height: 30px;
            font-size: 0.8rem;
            border-radius: 5px;
            background: var(--color-accent);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
        }

        .hamburger-btn {
            width: 38px;
            height: 38px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-sm);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            cursor: pointer;
            border: none;
            transition: background var(--transition-fast);
            z-index: 1002;
        }

        .hamburger-btn:hover {
            background: rgba(255, 255, 255, 0.16);
        }

        .hamburger-btn span {
            display: block;
            width: 20px;
            height: 2px;
            background: #fff;
            border-radius: 2px;
            transition: all var(--transition-fast);
        }

        .hamburger-btn.active span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }
        .hamburger-btn.active span:nth-child(2) {
            opacity: 0;
        }
        .hamburger-btn.active span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

        /* 侧边栏遮罩 */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 998;
            opacity: 0;
            transition: opacity var(--transition-normal);
            pointer-events: none;
        }
        .sidebar-overlay.visible {
            display: block;
            opacity: 1;
            pointer-events: auto;
        }

        /* ============ 面包屑 ============ */
        .breadcrumb-row {
            padding: 18px 0 0;
        }
        .breadcrumb {
            display: flex;
            gap: 8px;
            align-items: center;
            font-size: 0.84rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .breadcrumb a {
            color: var(--color-accent-dark);
            font-weight: 500;
        }
        .breadcrumb a:hover {
            color: var(--color-accent);
            text-decoration: underline;
        }
        .breadcrumb .sep {
            color: var(--color-border);
            font-size: 0.7rem;
        }
        .breadcrumb .current {
            color: var(--color-text-secondary);
            font-weight: 600;
        }

        /* ============ Banner / Hero ============ */
        .category-hero {
            position: relative;
            background: var(--color-primary) url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            min-height: 340px;
            display: flex;
            align-items: center;
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-top: 20px;
            isolation: isolate;
        }
        .category-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(11, 28, 58, 0.88) 0%, rgba(11, 28, 58, 0.65) 50%, rgba(11, 28, 58, 0.82) 100%);
            z-index: 1;
        }
        .category-hero-content {
            position: relative;
            z-index: 2;
            padding: 40px 36px;
            max-width: 700px;
        }
        .category-hero-content .hero-tag {
            display: inline-block;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: 20px;
            letter-spacing: 0.06em;
            margin-bottom: 14px;
            text-transform: uppercase;
        }
        .category-hero-content h1 {
            font-size: 2.5rem;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: 0.02em;
        }
        .category-hero-content .hero-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.6;
            margin-bottom: 0;
        }

        /* ============ 板块标题 ============ */
        .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-header h2 {
            font-size: 1.9rem;
            color: var(--color-text);
            margin-bottom: 8px;
            letter-spacing: 0.01em;
        }
        .section-header .section-line {
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 0 auto 12px;
            border-radius: 2px;
        }
        .section-header p {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
            max-width: 600px;
            margin: 0 auto;
        }

        /* ============ 卡片系统 ============ */
        .card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: var(--color-border);
        }
        .card-image-wrap {
            border-radius: var(--radius-sm);
            overflow: hidden;
            margin-bottom: 16px;
            position: relative;
            aspect-ratio: 16/10;
            background: var(--color-bg-alt);
        }
        .card-image-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-normal);
        }
        .card:hover .card-image-wrap img {
            transform: scale(1.04);
        }
        .card-tag {
            display: inline-block;
            font-size: 0.73rem;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: 14px;
            margin-bottom: 10px;
            letter-spacing: 0.03em;
            background: rgba(201, 154, 76, 0.1);
            color: var(--color-accent-dark);
        }
        .card-tag.hot {
            background: rgba(209, 67, 67, 0.1);
            color: var(--color-danger);
        }
        .card-tag.new {
            background: rgba(46, 154, 94, 0.1);
            color: var(--color-success);
        }
        .card h3 {
            font-size: 1.15rem;
            margin-bottom: 8px;
            color: var(--color-text);
        }
        .card p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.6;
            flex: 1;
        }
        .card-meta {
            font-size: 0.78rem;
            color: var(--color-text-muted);
            margin-top: 12px;
            display: flex;
            gap: 12px;
            align-items: center;
            flex-wrap: wrap;
        }
        .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.88rem;
            color: var(--color-accent-dark);
            margin-top: 14px;
            transition: color var(--transition-fast);
        }
        .card-link i {
            font-size: 0.7rem;
            transition: transform var(--transition-fast);
        }
        .card-link:hover {
            color: var(--color-accent);
        }
        .card-link:hover i {
            transform: translateX(4px);
        }

        /* ============ 统计数字块 ============ */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 24px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-normal);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
        }
        .stat-icon {
            font-size: 2rem;
            color: var(--color-accent);
            margin-bottom: 10px;
        }
        .stat-number {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: -0.01em;
            line-height: 1;
        }
        .stat-number .unit {
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-text-muted);
            margin-left: 2px;
        }
        .stat-label {
            font-size: 0.84rem;
            color: var(--color-text-secondary);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ============ 流程/方法论 ============ */
        .process-list {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            counter-reset: process;
        }
        .process-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            position: relative;
            transition: all var(--transition-normal);
            counter-increment: process;
        }
        .process-item:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
        }
        .process-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            background: var(--color-accent);
            color: #fff;
            border-radius: 50%;
            font-weight: 800;
            font-size: 1.2rem;
            margin-bottom: 14px;
        }
        .process-item h4 {
            font-size: 1rem;
            margin-bottom: 6px;
        }
        .process-item p {
            font-size: 0.82rem;
            color: var(--color-text-secondary);
            line-height: 1.55;
        }

        /* ============ 热门赛事表格 ============ */
        .match-table-wrap {
            overflow-x: auto;
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
        }
        .match-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.9rem;
            background: var(--color-bg-card);
            min-width: 700px;
        }
        .match-table thead th {
            background: var(--color-primary);
            color: #fff;
            padding: 14px 12px;
            font-weight: 600;
            font-size: 0.82rem;
            letter-spacing: 0.03em;
            text-align: center;
            white-space: nowrap;
        }
        .match-table tbody td {
            padding: 12px 10px;
            text-align: center;
            border-bottom: 1px solid var(--color-border-light);
            vertical-align: middle;
            font-weight: 500;
        }
        .match-table tbody tr:hover {
            background: #fafbfc;
        }
        .match-table .team-cell {
            text-align: left;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .match-table .badge-predict {
            display: inline-block;
            padding: 4px 10px;
            border-radius: 12px;
            font-size: 0.75rem;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .badge-predict.win {
            background: #e8f5e9;
            color: #2e7d32;
        }
        .badge-predict.draw {
            background: #fff8e1;
            color: #e65100;
        }
        .badge-predict.loss {
            background: #fce4ec;
            color: #b71c1c;
        }
        .badge-confidence {
            display: inline-block;
            padding: 3px 8px;
            border-radius: 10px;
            font-size: 0.73rem;
            font-weight: 700;
            background: rgba(201, 154, 76, 0.12);
            color: var(--color-accent-dark);
        }

        /* ============ FAQ ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 20px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.98rem;
            color: var(--color-text);
            gap: 12px;
            user-select: none;
            background: transparent;
        }
        .faq-question i {
            color: var(--color-accent);
            font-size: 0.85rem;
            transition: transform var(--transition-fast);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 20px;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
            padding: 0 20px 18px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--color-text-secondary);
            line-height: 1.7;
            margin: 0;
        }

        /* ============ CTA ============ */
        .cta-section {
            background: var(--color-primary);
            border-radius: var(--radius-lg);
            padding: 48px 36px;
            text-align: center;
            position: relative;
            overflow: hidden;
            isolation: isolate;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('assets/images/backpic/back-2.webp') center/cover no-repeat;
            opacity: 0.12;
            z-index: 0;
        }
        .cta-section>* {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 10px;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1rem;
            max-width: 550px;
            margin: 0 auto 22px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 13px 28px;
            font-size: 0.95rem;
            font-weight: 700;
            border-radius: 30px;
            letter-spacing: 0.03em;
            transition: all var(--transition-fast);
            text-decoration: none;
            cursor: pointer;
        }
        .btn-accent {
            background: var(--color-accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(201, 154, 76, 0.35);
        }
        .btn-accent:hover {
            background: var(--color-accent-light);
            box-shadow: 0 6px 24px rgba(201, 154, 76, 0.5);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.4);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .btn-group {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            justify-content: center;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: #0b1c3a;
            color: rgba(255, 255, 255, 0.7);
            padding: 44px 0 24px;
            margin-top: 20px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }
        .site-footer .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 32px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.3fr;
            gap: 32px;
            margin-bottom: 28px;
        }
        .footer-col h4 {
            color: #fff;
            font-size: 1rem;
            margin-bottom: 14px;
            font-weight: 700;
            letter-spacing: 0.02em;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.55);
            font-size: 0.84rem;
            transition: color var(--transition-fast);
        }
        .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 18px;
            text-align: center;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.38);
        }
        .footer-bottom strong {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 600;
        }

        /* ============ 响应式 ============ */
        @media (max-width: 1100px) {
            :root {
                --sidebar-width: 240px;
            }
            .content-container {
                padding: 0 20px;
            }
            .category-hero-content h1 {
                font-size: 2rem;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .process-list {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 24px;
            }
        }

        @media (max-width: 860px) {
            :root {
                --sidebar-width: 240px;
            }
            .sidebar-nav {
                transform: translateX(-100%);
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .sidebar-overlay.visible {
                display: block;
                opacity: 1;
                pointer-events: auto;
            }
            .main-content {
                margin-left: 0;
            }
            .mobile-topbar {
                display: flex;
            }
            .main-content {
                padding-top: 56px;
            }
            .category-hero {
                min-height: 260px;
                border-radius: var(--radius-md);
                margin-top: 12px;
            }
            .category-hero-content {
                padding: 28px 20px;
            }
            .category-hero-content h1 {
                font-size: 1.6rem;
            }
            .category-hero-content .hero-subtitle {
                font-size: 0.9rem;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-number {
                font-size: 1.7rem;
            }
            .process-list {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .card {
                padding: 20px 16px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .cta-section {
                padding: 32px 20px;
            }
            .cta-section h2 {
                font-size: 1.4rem;
            }
            .btn-group {
                flex-direction: column;
                align-items: center;
            }
            .section-padding {
                padding: 40px 0;
            }
            .section-padding-sm {
                padding: 28px 0;
            }
            .match-table-wrap {
                font-size: 0.78rem;
            }
        }

        @media (max-width: 520px) {
            .content-container {
                padding: 0 12px;
            }
            .category-hero {
                min-height: 220px;
                border-radius: var(--radius-sm);
            }
            .category-hero-content {
                padding: 20px 16px;
            }
            .category-hero-content h1 {
                font-size: 1.35rem;
            }
            .category-hero-content .hero-subtitle {
                font-size: 0.82rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }
            .stat-card {
                padding: 16px 10px;
            }
            .stat-number {
                font-size: 1.4rem;
            }
            .stat-icon {
                font-size: 1.5rem;
            }
            .stat-label {
                font-size: 0.73rem;
            }
            .process-list {
                grid-template-columns: 1fr;
                gap: 8px;
            }
            .process-item {
                padding: 20px 14px;
            }
            .card-image-wrap {
                aspect-ratio: 16/9;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .faq-question {
                font-size: 0.88rem;
                padding: 14px 16px;
            }
            .faq-answer p {
                font-size: 0.8rem;
            }
            .btn {
                padding: 11px 22px;
                font-size: 0.85rem;
            }
            .card h3 {
                font-size: 1rem;
            }
            .site-footer {
                padding: 28px 0 18px;
                border-radius: var(--radius-md) var(--radius-md) 0 0;
            }
            .site-footer .content-container {
                padding: 0 14px;
            }
        }

/* roulang page: category3 */
/* ============ 设计变量 ============ */
        :root {
            --color-primary: #0d2137;
            --color-primary-light: #163250;
            --color-accent: #c8912b;
            --color-accent-light: #e0a83f;
            --color-accent-dark: #a07520;
            --color-bg: #f7f6f3;
            --color-surface: #ffffff;
            --color-text: #1a1a1c;
            --color-text-soft: #5c5c62;
            --color-text-muted: #8a8a90;
            --color-border: #e2e0db;
            --color-border-light: #efede9;
            --color-success: #2d8c4e;
            --color-danger: #c0392b;
            --color-warm-bg: #fdfaf4;
            --radius-sm: 6px;
            --radius-md: 10px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
            --shadow-lg: 0 10px 32px rgba(0, 0, 0, 0.10), 0 4px 10px rgba(0, 0, 0, 0.05);
            --shadow-xl: 0 18px 48px rgba(0, 0, 0, 0.12), 0 6px 16px rgba(0, 0, 0, 0.06);
            --sidebar-width: 260px;
            --transition-fast: 0.18s ease;
            --transition-base: 0.28s ease;
            --transition-slow: 0.4s cubic-bezier(0.25, 0.8, 0.25, 1.2);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Noto Sans SC', system-ui, -apple-system, sans-serif;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

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

        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--color-text);
            background-color: var(--color-bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
            overflow-x: hidden;
        }

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

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

        button {
            cursor: pointer;
            font-family: inherit;
        }

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin: 0;
            line-height: 1.35;
            font-weight: 700;
        }

        p {
            margin: 0;
        }

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

        /* ============ 移动端顶部条 ============ */
        .mobile-top-bar {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 999;
            background: var(--color-primary);
            padding: 0 16px;
            height: 56px;
            align-items: center;
            justify-content: space-between;
            box-shadow: var(--shadow-md);
        }
        .mobile-top-bar .mobile-logo {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
            text-decoration: none;
        }
        .mobile-top-bar .mobile-logo i {
            color: var(--color-accent-light);
            font-size: 1.25rem;
        }
        .mobile-top-bar .hamburger-btn {
            background: transparent;
            border: none;
            color: #fff;
            font-size: 1.5rem;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            transition: background var(--transition-fast);
            line-height: 1;
        }
        .mobile-top-bar .hamburger-btn:active {
            background: rgba(255, 255, 255, 0.12);
        }

        /* ============ 侧边栏导航 ============ */
        .sidebar-nav {
            position: fixed;
            top: 0;
            left: 0;
            width: var(--sidebar-width);
            height: 100vh;
            background: var(--color-primary);
            color: #fff;
            display: flex;
            flex-direction: column;
            z-index: 1000;
            overflow-y: auto;
            overflow-x: hidden;
            box-shadow: 2px 0 24px rgba(0, 0, 0, 0.18);
            transition: transform var(--transition-base);
            transform: translateX(0);
        }
        .sidebar-nav::-webkit-scrollbar {
            width: 4px;
        }
        .sidebar-nav::-webkit-scrollbar-thumb {
            background: rgba(255, 255, 255, 0.2);
            border-radius: 4px;
        }

        .sidebar-brand {
            padding: 24px 20px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .sidebar-brand a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-weight: 700;
            font-size: 1.2rem;
            letter-spacing: 0.5px;
            transition: opacity var(--transition-fast);
        }
        .sidebar-brand a:hover {
            opacity: 0.85;
        }
        .brand-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-accent);
            border-radius: var(--radius-md);
            font-size: 1.1rem;
            flex-shrink: 0;
        }

        .sidebar-nav-list {
            flex: 1;
            padding: 12px 12px 16px;
            display: flex;
            flex-direction: column;
            gap: 4px;
        }
        .sidebar-nav-list li a {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 11px 16px;
            border-radius: var(--radius-md);
            color: rgba(255, 255, 255, 0.78);
            font-size: 0.95rem;
            font-weight: 500;
            transition: all var(--transition-fast);
            position: relative;
            white-space: nowrap;
        }
        .sidebar-nav-list li a i {
            width: 20px;
            text-align: center;
            font-size: 0.95rem;
            flex-shrink: 0;
        }
        .sidebar-nav-list li a:hover {
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
        }
        .sidebar-nav-list li a.active {
            background: rgba(255, 255, 255, 0.14);
            color: #fff;
            font-weight: 600;
            box-shadow: inset 3px 0 0 var(--color-accent-light);
        }
        .nav-badge {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: var(--color-danger);
            color: #fff;
            font-size: 0.7rem;
            font-weight: 700;
            padding: 2px 7px;
            border-radius: 20px;
            margin-left: auto;
            letter-spacing: 0.3px;
            line-height: 1.3;
            animation: pulse-badge 2s ease-in-out infinite;
        }
        @keyframes pulse-badge {
            0%,
            100% {
                transform: scale(1);
            }
            50% {
                transform: scale(1.1);
            }
        }

        .sidebar-footer-info {
            padding: 16px 20px 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 0.72rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.6;
            text-align: center;
        }

        /* ============ 遮罩层 ============ */
        .sidebar-overlay {
            display: none;
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.55);
            z-index: 999;
            transition: opacity var(--transition-base);
        }
        .sidebar-overlay.active {
            display: block;
        }

        /* ============ 主内容区 ============ */
        .main-content-wrapper {
            margin-left: var(--sidebar-width);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            transition: margin-left var(--transition-base);
        }

        .content-container {
            max-width: 1100px;
            margin: 0 auto;
            padding: 0 28px;
            width: 100%;
        }
        .content-container--wide {
            max-width: 1200px;
        }
        .content-container--narrow {
            max-width: 860px;
        }

        /* ============ 板块间距 ============ */
        .section {
            padding: 56px 0;
        }
        .section--tight {
            padding: 36px 0;
        }
        .section--loose {
            padding: 72px 0;
        }
        .section--alt {
            background: var(--color-warm-bg);
            border-top: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .section--dark {
            background: var(--color-primary);
            color: #fff;
        }

        /* ============ Banner 区域 ============ */
        .page-banner {
            position: relative;
            padding: 80px 0 70px;
            background: var(--color-primary) url('assets/images/backpic/back-1.webp') center/cover no-repeat;
            background-blend-mode: overlay;
            color: #fff;
            text-align: center;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(13, 33, 55, 0.82) 0%, rgba(13, 33, 55, 0.9) 100%);
            z-index: 1;
        }
        .page-banner .banner-inner {
            position: relative;
            z-index: 2;
        }
        .page-banner .banner-breadcrumb {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
            margin-bottom: 18px;
            flex-wrap: wrap;
        }
        .page-banner .banner-breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
            transition: color var(--transition-fast);
        }
        .page-banner .banner-breadcrumb a:hover {
            color: var(--color-accent-light);
        }
        .page-banner .banner-breadcrumb .sep {
            color: rgba(255, 255, 255, 0.4);
        }
        .page-banner h1 {
            font-size: 2.6rem;
            font-weight: 800;
            letter-spacing: 1px;
            margin-bottom: 14px;
            line-height: 1.25;
        }
        .page-banner .banner-subtitle {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.78);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .page-banner .banner-accent-dot {
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--color-accent-light);
            border-radius: 50%;
            margin: 0 4px;
            vertical-align: middle;
        }

        /* ============ 板块标题 ============ */
        .section-header {
            text-align: center;
            margin-bottom: 42px;
        }
        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            letter-spacing: 0.3px;
        }
        .section-header .section-header-line {
            display: block;
            width: 50px;
            height: 3px;
            background: var(--color-accent);
            margin: 12px auto 14px;
            border-radius: 3px;
        }
        .section-header p {
            font-size: 1rem;
            color: var(--color-text-soft);
            max-width: 600px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ============ 攻略分类卡片 ============ */
        .strategy-cards-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }
        .strategy-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: all var(--transition-base);
            border: 1px solid var(--color-border-light);
            display: flex;
            flex-direction: column;
        }
        .strategy-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: transparent;
        }
        .strategy-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: #e8e6e1;
        }
        .strategy-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .strategy-card:hover .card-img-wrap img {
            transform: scale(1.06);
        }
        .strategy-card .card-img-wrap .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            background: var(--color-accent);
            color: #fff;
            font-size: 0.78rem;
            font-weight: 600;
            padding: 5px 12px;
            border-radius: 20px;
            letter-spacing: 0.4px;
            z-index: 2;
        }
        .strategy-card .card-body {
            padding: 20px 18px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .strategy-card .card-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .strategy-card .card-body p {
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.6;
            flex: 1;
            margin-bottom: 14px;
        }
        .strategy-card .card-body .card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 0.9rem;
            color: var(--color-accent-dark);
            transition: gap var(--transition-fast), color var(--transition-fast);
            align-self: flex-start;
        }
        .strategy-card .card-body .card-link:hover {
            gap: 10px;
            color: var(--color-primary);
        }
        .strategy-card .card-body .card-link i {
            font-size: 0.75rem;
        }

        /* ============ 精选攻略列表 ============ */
        .featured-list {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .featured-item {
            display: flex;
            gap: 20px;
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 18px 20px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
            align-items: center;
        }
        .featured-item:hover {
            box-shadow: var(--shadow-md);
            border-color: transparent;
            transform: translateX(3px);
        }
        .featured-item .featured-thumb {
            width: 120px;
            height: 80px;
            border-radius: var(--radius-md);
            overflow: hidden;
            flex-shrink: 0;
            background: #e8e6e1;
        }
        .featured-item .featured-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform var(--transition-slow);
        }
        .featured-item:hover .featured-thumb img {
            transform: scale(1.08);
        }
        .featured-item .featured-info {
            flex: 1;
            min-width: 0;
        }
        .featured-item .featured-info h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 4px;
            line-height: 1.4;
        }
        .featured-item .featured-info .meta-row {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 0.8rem;
            color: var(--color-text-muted);
            flex-wrap: wrap;
        }
        .featured-item .featured-info .meta-row span {
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .featured-item .featured-info .meta-row .difficulty-badge {
            display: inline-block;
            padding: 3px 10px;
            border-radius: 12px;
            font-size: 0.72rem;
            font-weight: 600;
            letter-spacing: 0.3px;
        }
        .difficulty-badge.beginner {
            background: #e8f5e9;
            color: #2d6a3a;
        }
        .difficulty-badge.intermediate {
            background: #fff3e0;
            color: #c2780a;
        }
        .difficulty-badge.advanced {
            background: #fce4ec;
            color: #b71c3c;
        }
        .featured-item .featured-arrow {
            flex-shrink: 0;
            color: var(--color-text-muted);
            font-size: 1rem;
            transition: color var(--transition-fast), transform var(--transition-fast);
        }
        .featured-item:hover .featured-arrow {
            color: var(--color-accent);
            transform: translateX(4px);
        }

        /* ============ 数据亮点区 ============ */
        .stats-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
        }
        .stat-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 28px 20px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--color-border-light);
            transition: all var(--transition-base);
        }
        .stat-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-3px);
            border-color: transparent;
        }
        .stat-card .stat-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(200, 145, 43, 0.1);
            color: var(--color-accent-dark);
            font-size: 1.4rem;
            margin-bottom: 12px;
        }
        .stat-card .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--color-primary);
            letter-spacing: 0.5px;
            line-height: 1;
            margin-bottom: 6px;
        }
        .stat-card .stat-label {
            font-size: 0.85rem;
            color: var(--color-text-soft);
            font-weight: 500;
        }

        /* ============ 要点面板 ============ */
        .key-points-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .key-point-card {
            background: var(--color-surface);
            border-radius: var(--radius-lg);
            padding: 24px 20px;
            box-shadow: var(--shadow-sm);
            border-left: 4px solid var(--color-accent);
            transition: all var(--transition-base);
            border-top: 1px solid var(--color-border-light);
            border-right: 1px solid var(--color-border-light);
            border-bottom: 1px solid var(--color-border-light);
        }
        .key-point-card:hover {
            box-shadow: var(--shadow-md);
            border-left-color: var(--color-accent-light);
        }
        .key-point-card h4 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--color-primary);
            margin-bottom: 6px;
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .key-point-card h4 i {
            color: var(--color-accent);
            font-size: 1rem;
        }
        .key-point-card p {
            font-size: 0.88rem;
            color: var(--color-text-soft);
            line-height: 1.6;
        }

        /* ============ FAQ 区域 ============ */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--color-surface);
            border-radius: var(--radius-md);
            border: 1px solid var(--color-border-light);
            overflow: hidden;
            transition: all var(--transition-fast);
        }
        .faq-item:hover {
            border-color: var(--color-border);
            box-shadow: var(--shadow-sm);
        }
        .faq-question {
            width: 100%;
            background: transparent;
            border: none;
            padding: 16px 20px;
            text-align: left;
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: color var(--transition-fast);
            line-height: 1.5;
        }
        .faq-question:hover {
            color: var(--color-accent-dark);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            background: rgba(200, 145, 43, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.75rem;
            color: var(--color-accent);
            transition: all var(--transition-fast);
        }
        .faq-item.open .faq-question .faq-icon {
            background: var(--color-accent);
            color: #fff;
            transform: rotate(45deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
        }
        .faq-item.open .faq-answer {
            max-height: 400px;
        }
        .faq-answer-inner {
            padding: 0 20px 18px;
            font-size: 0.9rem;
            color: var(--color-text-soft);
            line-height: 1.75;
        }

        /* ============ CTA 区域 ============ */
        .cta-block {
            background: var(--color-primary);
            border-radius: var(--radius-xl);
            padding: 48px 36px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
            box-shadow: var(--shadow-lg);
        }
        .cta-block::after {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.03);
            pointer-events: none;
        }
        .cta-block h3 {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 10px;
            position: relative;
            z-index: 1;
        }
        .cta-block p {
            font-size: 1rem;
            color: rgba(255, 255, 255, 0.75);
            margin-bottom: 24px;
            max-width: 500px;
            margin-left: auto;
            margin-right: auto;
            position: relative;
            z-index: 1;
            line-height: 1.6;
        }
        .cta-block .btn-cta {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--color-accent);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            padding: 13px 30px;
            border-radius: 30px;
            transition: all var(--transition-base);
            position: relative;
            z-index: 1;
            border: none;
            letter-spacing: 0.3px;
            box-shadow: 0 4px 14px rgba(200, 145, 43, 0.35);
        }
        .cta-block .btn-cta:hover {
            background: var(--color-accent-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(200, 145, 43, 0.45);
            color: #fff;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--color-primary);
            color: #fff;
            padding: 44px 0 0;
            margin-top: auto;
        }
        .site-footer .footer-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 28px;
            padding-bottom: 32px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .site-footer .footer-col h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: #fff;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-col ul li {
            margin-bottom: 8px;
        }
        .site-footer .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.85rem;
            transition: color var(--transition-fast);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .site-footer .footer-col ul li a:hover {
            color: var(--color-accent-light);
        }
        .site-footer .footer-bottom {
            text-align: center;
            padding: 18px 0;
            font-size: 0.78rem;
            color: rgba(255, 255, 255, 0.4);
            line-height: 1.5;
        }
        .site-footer .footer-bottom strong {
            color: rgba(255, 255, 255, 0.7);
            font-weight: 600;
        }

        /* ============ 响应式处理 ============ */
        @media screen and (max-width: 1024px) {
            :root {
                --sidebar-width: 240px;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .site-footer .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }
            .featured-item {
                flex-wrap: wrap;
            }
            .featured-item .featured-thumb {
                width: 100%;
                height: 160px;
            }
            .featured-item .featured-arrow {
                display: none;
            }
        }

        @media screen and (max-width: 768px) {
            .mobile-top-bar {
                display: flex;
            }
            .sidebar-nav {
                transform: translateX(-100%);
                width: 280px;
                box-shadow: 4px 0 32px rgba(0, 0, 0, 0.35);
                z-index: 1001;
            }
            .sidebar-nav.open {
                transform: translateX(0);
            }
            .sidebar-overlay.active {
                display: block;
            }
            .main-content-wrapper {
                margin-left: 0;
                padding-top: 56px;
            }
            .page-banner {
                padding: 50px 0 44px;
            }
            .page-banner h1 {
                font-size: 1.7rem;
            }
            .page-banner .banner-subtitle {
                font-size: 0.9rem;
            }
            .section {
                padding: 36px 0;
            }
            .section--loose {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.5rem;
            }
            .strategy-cards-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }
            .stats-row {
                grid-template-columns: repeat(2, 1fr);
                gap: 12px;
            }
            .stat-card {
                padding: 20px 14px;
            }
            .stat-card .stat-number {
                font-size: 1.5rem;
            }
            .key-points-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }
            .cta-block {
                padding: 32px 20px;
                border-radius: var(--radius-lg);
            }
            .cta-block h3 {
                font-size: 1.3rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 20px;
            }
            .content-container {
                padding: 0 16px;
            }
            .featured-item .featured-thumb {
                height: 130px;
            }
        }

        @media screen and (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.45rem;
            }
            .stats-row {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .stat-card .stat-number {
                font-size: 1.35rem;
            }
            .stat-card .stat-label {
                font-size: 0.75rem;
            }
            .site-footer .footer-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .featured-item {
                padding: 14px;
                gap: 12px;
            }
            .featured-item .featured-thumb {
                height: 110px;
            }
            .strategy-card .card-body {
                padding: 14px 12px 16px;
            }
            .section-header h2 {
                font-size: 1.3rem;
            }
            .faq-question {
                font-size: 0.9rem;
                padding: 14px 16px;
            }
            .faq-answer-inner {
                padding: 0 16px 14px;
                font-size: 0.82rem;
            }
        }