/* roulang page: index */
:root {
            --bs-primary: #1a2a6c;
            --bs-primary-rgb: 26, 42, 108;
            --bs-secondary: #b21f1f;
            --bs-secondary-rgb: 178, 31, 31;
            --bs-accent: #fdbb2d;
            --bs-accent-rgb: 253, 187, 45;
            --bs-dark: #0d1b2a;
            --bs-light: #f8f9fc;
            --bs-body: #ffffff;
            --bs-text: #1a1a2e;
            --bs-text-muted: #6c757d;
            --bs-border: #e2e8f0;
            --bs-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
            --bs-shadow-hover: 0 12px 40px rgba(0, 0, 0, 0.12);
            --bs-radius: 16px;
            --bs-radius-sm: 8px;
            --bs-radius-lg: 24px;
            --bs-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --bs-font-sans-serif: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--bs-font-sans-serif);
            color: var(--bs-text);
            background: var(--bs-body);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--bs-primary);
            text-decoration: none;
            transition: var(--bs-transition);
        }
        a:hover {
            color: #0f1a4a;
        }
        a:focus-visible {
            outline: 3px solid var(--bs-accent);
            outline-offset: 2px;
            border-radius: 4px;
        }

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

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        /* Header & Navigation */
        .site-header {
            background: rgba(255, 255, 255, 0.97);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--bs-border);
            position: sticky;
            top: 0;
            z-index: 1050;
            transition: var(--bs-transition);
        }
        .site-header .navbar {
            padding-top: 12px;
            padding-bottom: 12px;
        }
        .site-header .navbar-brand {
            font-weight: 800;
            font-size: 1.5rem;
            color: var(--bs-primary);
            letter-spacing: -0.5px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .site-header .navbar-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
        }
        .site-header .navbar-brand:hover {
            color: var(--bs-primary);
        }
        .site-header .nav-link {
            font-weight: 600;
            color: var(--bs-text);
            padding: 8px 18px !important;
            border-radius: var(--bs-radius-sm);
            transition: var(--bs-transition);
            position: relative;
            font-size: 0.95rem;
        }
        .site-header .nav-link:hover,
        .site-header .nav-link:focus {
            color: var(--bs-primary);
            background: rgba(var(--bs-primary-rgb), 0.06);
        }
        .site-header .nav-link.active {
            color: #fff;
            background: var(--bs-primary);
        }
        .site-header .nav-link.active::after {
            display: none;
        }
        .site-header .search-form {
            position: relative;
            max-width: 240px;
        }
        .site-header .search-form .form-control {
            border-radius: 50px;
            border: 1px solid var(--bs-border);
            padding-left: 40px;
            font-size: 0.9rem;
            background: var(--bs-light);
            transition: var(--bs-transition);
        }
        .site-header .search-form .form-control:focus {
            border-color: var(--bs-primary);
            box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.12);
            background: #fff;
        }
        .site-header .search-form .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--bs-text-muted);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .site-header .btn-cta-nav {
            background: linear-gradient(135deg, var(--bs-primary), #0f1a4a);
            color: #fff;
            border: none;
            border-radius: 50px;
            padding: 10px 28px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--bs-transition);
            box-shadow: 0 4px 16px rgba(var(--bs-primary-rgb), 0.25);
        }
        .site-header .btn-cta-nav:hover,
        .site-header .btn-cta-nav:focus {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(var(--bs-primary-rgb), 0.35);
            color: #fff;
        }
        .navbar-toggler {
            border: none;
            padding: 8px 10px;
            border-radius: var(--bs-radius-sm);
            background: var(--bs-light);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.15);
        }
        .navbar-toggler .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26,42,108,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* Hero Section */
        .hero-section {
            position: relative;
            min-height: 85vh;
            display: flex;
            align-items: center;
            background: linear-gradient(135deg, #0d1b2a 0%, #1a2a6c 50%, #2d1b69 100%);
            overflow: hidden;
            padding: 80px 0 60px;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.2;
            mix-blend-mode: overlay;
            animation: heroPan 20s ease-in-out infinite alternate;
        }
        @keyframes heroPan {
            0% { transform: scale(1) translate(0, 0); }
            100% { transform: scale(1.05) translate(-10px, -10px); }
        }
        .hero-section .hero-overlay {
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(26, 42, 108, 0.4) 0%, transparent 70%);
            pointer-events: none;
        }
        .hero-section .hero-content {
            position: relative;
            z-index: 2;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(253, 187, 45, 0.18);
            border: 1px solid rgba(253, 187, 45, 0.3);
            color: var(--bs-accent);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            letter-spacing: 0.5px;
            backdrop-filter: blur(4px);
            margin-bottom: 20px;
        }
        .hero-section .hero-title {
            font-size: 3.5rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
            text-shadow: 0 2px 30px rgba(0, 0, 0, 0.3);
        }
        .hero-section .hero-title .highlight {
            background: linear-gradient(135deg, var(--bs-accent), #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-section .hero-desc {
            font-size: 1.2rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 560px;
            line-height: 1.8;
            margin-bottom: 32px;
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-section .btn-hero-primary {
            background: var(--bs-accent);
            color: #0d1b2a;
            border: none;
            border-radius: 50px;
            padding: 16px 40px;
            font-weight: 800;
            font-size: 1.05rem;
            transition: var(--bs-transition);
            box-shadow: 0 8px 32px rgba(253, 187, 45, 0.35);
        }
        .hero-section .btn-hero-primary:hover,
        .hero-section .btn-hero-primary:focus {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(253, 187, 45, 0.5);
            color: #0d1b2a;
        }
        .hero-section .btn-hero-secondary {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.25);
            border-radius: 50px;
            padding: 16px 36px;
            font-weight: 700;
            font-size: 1.05rem;
            backdrop-filter: blur(8px);
            transition: var(--bs-transition);
        }
        .hero-section .btn-hero-secondary:hover,
        .hero-section .btn-hero-secondary:focus {
            background: rgba(255, 255, 255, 0.2);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }
        .hero-section .hero-stats {
            display: flex;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-section .hero-stat-item {
            color: rgba(255, 255, 255, 0.85);
        }
        .hero-section .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 900;
            color: #fff;
            display: block;
            line-height: 1.2;
        }
        .hero-section .hero-stat-item .stat-label {
            font-size: 0.9rem;
            opacity: 0.7;
            font-weight: 500;
        }
        .hero-section .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            align-items: center;
        }
        .hero-section .hero-visual .hero-card-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 16px;
            max-width: 480px;
            width: 100%;
        }
        .hero-section .hero-visual .hero-card-item {
            background: rgba(255, 255, 255, 0.08);
            backdrop-filter: blur(12px);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: var(--bs-radius);
            padding: 24px 20px;
            text-align: center;
            color: #fff;
            transition: var(--bs-transition);
        }
        .hero-section .hero-visual .hero-card-item:hover {
            background: rgba(255, 255, 255, 0.14);
            transform: translateY(-4px);
        }
        .hero-section .hero-visual .hero-card-item .card-icon {
            font-size: 2rem;
            margin-bottom: 8px;
        }
        .hero-section .hero-visual .hero-card-item .card-label {
            font-size: 0.9rem;
            font-weight: 600;
            opacity: 0.9;
        }

        /* Section通用 */
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 60px 0;
        }
        .section-title {
            font-weight: 800;
            font-size: 2.4rem;
            color: var(--bs-primary);
            letter-spacing: -0.5px;
            margin-bottom: 12px;
        }
        .section-subtitle {
            color: var(--bs-text-muted);
            font-size: 1.1rem;
            max-width: 640px;
            margin: 0 auto 40px;
        }
        .section-divider {
            width: 60px;
            height: 4px;
            background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
            border-radius: 4px;
            margin: 0 auto 16px;
        }

        /* Features / 核心说明 */
        .features-section {
            background: var(--bs-light);
        }
        .features-section .feature-card {
            background: #fff;
            border-radius: var(--bs-radius);
            padding: 36px 28px;
            box-shadow: var(--bs-shadow);
            border: 1px solid var(--bs-border);
            transition: var(--bs-transition);
            height: 100%;
            position: relative;
            overflow: hidden;
        }
        .features-section .feature-card:hover {
            box-shadow: var(--bs-shadow-hover);
            transform: translateY(-6px);
            border-color: rgba(var(--bs-primary-rgb), 0.15);
        }
        .features-section .feature-card .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: #fff;
            margin-bottom: 20px;
            background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
        }
        .features-section .feature-card .feature-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--bs-text);
        }
        .features-section .feature-card .feature-desc {
            color: var(--bs-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* Category Cards 分类入口 */
        .categories-section {
            background: #fff;
        }
        .categories-section .cat-card {
            border-radius: var(--bs-radius);
            overflow: hidden;
            box-shadow: var(--bs-shadow);
            border: 1px solid var(--bs-border);
            transition: var(--bs-transition);
            height: 100%;
            background: #fff;
            position: relative;
        }
        .categories-section .cat-card:hover {
            box-shadow: var(--bs-shadow-hover);
            transform: translateY(-6px);
        }
        .categories-section .cat-card .cat-img {
            height: 200px;
            object-fit: cover;
            width: 100%;
            transition: var(--bs-transition);
        }
        .categories-section .cat-card:hover .cat-img {
            transform: scale(1.03);
        }
        .categories-section .cat-card .cat-body {
            padding: 24px 22px;
        }
        .categories-section .cat-card .cat-tag {
            display: inline-block;
            background: rgba(var(--bs-primary-rgb), 0.08);
            color: var(--bs-primary);
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .categories-section .cat-card .cat-title {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--bs-text);
        }
        .categories-section .cat-card .cat-desc {
            color: var(--bs-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .categories-section .cat-card .cat-link {
            font-weight: 700;
            color: var(--bs-primary);
            font-size: 0.9rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--bs-transition);
        }
        .categories-section .cat-card .cat-link i {
            transition: var(--bs-transition);
        }
        .categories-section .cat-card .cat-link:hover i {
            transform: translateX(4px);
        }

        /* Content List 资讯列表 */
        .content-section {
            background: var(--bs-light);
        }
        .content-section .content-card {
            background: #fff;
            border-radius: var(--bs-radius);
            overflow: hidden;
            box-shadow: var(--bs-shadow);
            border: 1px solid var(--bs-border);
            transition: var(--bs-transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .content-section .content-card:hover {
            box-shadow: var(--bs-shadow-hover);
            transform: translateY(-4px);
        }
        .content-section .content-card .content-img-wrap {
            height: 200px;
            overflow: hidden;
            position: relative;
        }
        .content-section .content-card .content-img-wrap .content-img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--bs-transition);
        }
        .content-section .content-card:hover .content-img {
            transform: scale(1.05);
        }
        .content-section .content-card .content-cat-badge {
            position: absolute;
            top: 14px;
            left: 14px;
            background: rgba(0, 0, 0, 0.7);
            backdrop-filter: blur(4px);
            color: #fff;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .content-section .content-card .content-body {
            padding: 22px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .content-section .content-card .content-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--bs-text);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .content-section .content-card .content-title a {
            color: inherit;
        }
        .content-section .content-card .content-title a:hover {
            color: var(--bs-primary);
        }
        .content-section .content-card .content-excerpt {
            color: var(--bs-text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 14px;
        }
        .content-section .content-card .content-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.8rem;
            color: var(--bs-text-muted);
            border-top: 1px solid var(--bs-border);
            padding-top: 14px;
            margin-top: auto;
        }
        .content-section .content-card .content-meta i {
            margin-right: 4px;
        }
        .content-section .content-empty {
            text-align: center;
            padding: 60px 20px;
            color: var(--bs-text-muted);
            font-size: 1.1rem;
            background: #fff;
            border-radius: var(--bs-radius);
            border: 1px dashed var(--bs-border);
        }

        /* Data / Stats 数据板块 */
        .data-section {
            background: linear-gradient(135deg, #0d1b2a, #1a2a6c);
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .data-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .data-section .data-number {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.1;
            background: linear-gradient(135deg, var(--bs-accent), #f59e0b);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .data-section .data-label {
            font-size: 1rem;
            opacity: 0.8;
            font-weight: 500;
            margin-top: 6px;
        }
        .data-section .data-card {
            background: rgba(255, 255, 255, 0.06);
            backdrop-filter: blur(8px);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--bs-radius);
            padding: 36px 24px;
            text-align: center;
            transition: var(--bs-transition);
        }
        .data-section .data-card:hover {
            background: rgba(255, 255, 255, 0.1);
            transform: translateY(-4px);
        }

        /* Process / 流程 */
        .process-section {
            background: #fff;
        }
        .process-section .process-step {
            text-align: center;
            padding: 20px;
            position: relative;
        }
        .process-section .process-step .step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            font-weight: 800;
            margin: 0 auto 18px;
            box-shadow: 0 8px 24px rgba(var(--bs-primary-rgb), 0.25);
        }
        .process-section .process-step .step-title {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--bs-text);
        }
        .process-section .process-step .step-desc {
            color: var(--bs-text-muted);
            font-size: 0.9rem;
            max-width: 260px;
            margin: 0 auto;
        }
        .process-section .process-connector {
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: var(--bs-border);
        }

        /* FAQ */
        .faq-section {
            background: var(--bs-light);
        }
        .faq-section .accordion-item {
            border: 1px solid var(--bs-border);
            border-radius: var(--bs-radius-sm) !important;
            margin-bottom: 12px;
            background: #fff;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
            overflow: hidden;
        }
        .faq-section .accordion-button {
            font-weight: 700;
            font-size: 1.05rem;
            color: var(--bs-text);
            padding: 18px 24px;
            background: #fff;
            box-shadow: none !important;
        }
        .faq-section .accordion-button:not(.collapsed) {
            color: var(--bs-primary);
            background: rgba(var(--bs-primary-rgb), 0.03);
        }
        .faq-section .accordion-button::after {
            background-size: 1rem;
            transition: var(--bs-transition);
        }
        .faq-section .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(var(--bs-primary-rgb), 0.1);
        }
        .faq-section .accordion-body {
            padding: 0 24px 20px;
            color: var(--bs-text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* CTA */
        .cta-section {
            background: linear-gradient(135deg, #1a2a6c, #2d1b69);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.1;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-title {
            font-size: 2.4rem;
            font-weight: 900;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .cta-section .cta-desc {
            color: rgba(255, 255, 255, 0.75);
            font-size: 1.1rem;
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-section .btn-cta {
            background: var(--bs-accent);
            color: #0d1b2a;
            border: none;
            border-radius: 50px;
            padding: 16px 48px;
            font-weight: 800;
            font-size: 1.1rem;
            transition: var(--bs-transition);
            box-shadow: 0 8px 32px rgba(253, 187, 45, 0.3);
        }
        .cta-section .btn-cta:hover,
        .cta-section .btn-cta:focus {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(253, 187, 45, 0.5);
            color: #0d1b2a;
        }

        /* Footer */
        .site-footer {
            background: #0d1b2a;
            color: rgba(255, 255, 255, 0.7);
            padding: 56px 0 32px;
        }
        .site-footer .footer-brand {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .brand-icon {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--bs-primary), var(--bs-secondary));
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 1.1rem;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            max-width: 320px;
            line-height: 1.7;
        }
        .site-footer .footer-heading {
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }
        .site-footer .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            transition: var(--bs-transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--bs-accent);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 40px;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }

        /* Back to top */
        .back-to-top {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: var(--bs-primary);
            color: #fff;
            border: none;
            font-size: 1.2rem;
            box-shadow: 0 4px 20px rgba(var(--bs-primary-rgb), 0.3);
            transition: var(--bs-transition);
            z-index: 1040;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .back-to-top.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .back-to-top:hover,
        .back-to-top:focus {
            background: #0f1a4a;
            color: #fff;
            transform: translateY(-4px);
            box-shadow: 0 8px 28px rgba(var(--bs-primary-rgb), 0.4);
        }

        /* Responsive */
        @media (max-width: 1199.98px) {
            .hero-section .hero-title {
                font-size: 2.8rem;
            }
            .hero-section .hero-visual .hero-card-grid {
                max-width: 400px;
            }
        }
        @media (max-width: 991.98px) {
            .hero-section {
                min-height: auto;
                padding: 60px 0 50px;
            }
            .hero-section .hero-title {
                font-size: 2.4rem;
            }
            .hero-section .hero-desc {
                font-size: 1.05rem;
            }
            .hero-section .hero-visual {
                margin-top: 40px;
            }
            .hero-section .hero-visual .hero-card-grid {
                max-width: 100%;
            }
            .section-title {
                font-size: 2rem;
            }
            .site-header .navbar-collapse {
                background: #fff;
                border-radius: var(--bs-radius);
                padding: 16px 20px;
                box-shadow: 0 12px 40px rgba(0, 0, 0, 0.1);
                margin-top: 12px;
            }
            .site-header .search-form {
                max-width: 100%;
                margin: 12px 0;
            }
            .site-header .btn-cta-nav {
                width: 100%;
                text-align: center;
            }
            .process-section .process-connector {
                transform: rotate(90deg);
                padding: 8px 0;
            }
            .data-section .data-number {
                font-size: 2.4rem;
            }
        }
        @media (max-width: 767.98px) {
            .hero-section .hero-title {
                font-size: 1.9rem;
            }
            .hero-section .hero-stats {
                gap: 24px;
            }
            .hero-section .hero-stat-item .stat-number {
                font-size: 1.6rem;
            }
            .section-padding {
                padding: 50px 0;
            }
            .section-padding-sm {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .cta-section .cta-title {
                font-size: 1.8rem;
            }
            .site-footer .footer-brand {
                font-size: 1.3rem;
            }
            .back-to-top {
                bottom: 20px;
                right: 20px;
                width: 40px;
                height: 40px;
                font-size: 1rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section .hero-title {
                font-size: 1.6rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                width: 100%;
            }
            .hero-section .hero-actions .btn {
                width: 100%;
                text-align: center;
            }
            .hero-section .hero-visual .hero-card-grid {
                grid-template-columns: 1fr 1fr;
                gap: 10px;
            }
            .hero-section .hero-visual .hero-card-item {
                padding: 16px 12px;
            }
            .features-section .feature-card {
                padding: 24px 18px;
            }
            .categories-section .cat-card .cat-body {
                padding: 18px 16px;
            }
            .content-section .content-card .content-body {
                padding: 16px 16px 18px;
            }
            .data-section .data-card {
                padding: 24px 16px;
            }
            .data-section .data-number {
                font-size: 2rem;
            }
            .faq-section .accordion-button {
                font-size: 0.95rem;
                padding: 14px 18px;
            }
            .faq-section .accordion-body {
                padding: 0 18px 16px;
            }
        }

/* roulang page: category1 */
:root {
            --primary: #e63946;
            --primary-dark: #c1121f;
            --primary-light: #ff6b6b;
            --secondary: #1d3557;
            --secondary-light: #457b9d;
            --accent: #f4a261;
            --bg-light: #f8f9fa;
            --bg-dark: #0d1b2a;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #6c757d;
            --text-white: #ffffff;
            --border-color: #e9ecef;
            --border-radius: 16px;
            --border-radius-sm: 10px;
            --border-radius-lg: 24px;
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.10);
            --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
            --shadow-hover: 0 12px 40px rgba(230, 57, 70, 0.18);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --spacing-section: 5rem;
            --spacing-section-mobile: 3rem;
        }

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

        body {
            font-family: var(--font-sans);
            color: var(--text-primary);
            background: var(--bg-light);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-dark);
        }

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

        .container {
            max-width: 1260px;
            padding-left: 1.5rem;
            padding-right: 1.5rem;
        }

        /* ===== Header / Nav ===== */
        .site-header {
            background: #ffffff;
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 20px rgba(0, 0, 0, 0.04);
            position: sticky;
            top: 0;
            z-index: 1050;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .site-header .navbar {
            padding-top: 0.75rem;
            padding-bottom: 0.75rem;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.4rem;
            color: var(--text-primary) !important;
            letter-spacing: -0.3px;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 12px;
            font-weight: 800;
            font-size: 1.3rem;
            box-shadow: 0 4px 12px rgba(230, 57, 70, 0.3);
        }
        .navbar-brand:hover {
            color: var(--text-primary) !important;
        }

        .navbar-nav .nav-link {
            font-weight: 500;
            font-size: 0.95rem;
            padding: 0.5rem 1rem;
            color: var(--text-secondary) !important;
            border-radius: 8px;
            transition: var(--transition);
            position: relative;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(230, 57, 70, 0.06);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary) !important;
            background: rgba(230, 57, 70, 0.10);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--primary);
            border-radius: 4px;
        }

        .search-form {
            position: relative;
            max-width: 220px;
        }
        .search-form .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.9rem;
            pointer-events: none;
        }
        .search-form .form-control {
            padding-left: 40px;
            border-radius: 40px;
            border: 1px solid var(--border-color);
            background: var(--bg-light);
            font-size: 0.9rem;
            height: 42px;
            transition: var(--transition);
        }
        .search-form .form-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(230, 57, 70, 0.12);
            background: #fff;
        }

        .btn-cta-nav {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff !important;
            border: none;
            border-radius: 40px;
            padding: 0.5rem 1.6rem;
            font-weight: 600;
            font-size: 0.9rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.25);
            white-space: nowrap;
        }
        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(230, 57, 70, 0.35);
            background: linear-gradient(135deg, var(--primary-dark), #a4161a);
        }

        .navbar-toggler {
            border: none;
            padding: 0.4rem 0.6rem;
            border-radius: 8px;
            background: var(--bg-light);
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(230, 57, 70, 0.2);
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26,26,46,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ===== Hero / Banner ===== */
        .page-hero {
            position: relative;
            padding: 4.5rem 0 5rem;
            background: linear-gradient(135deg, var(--bg-dark) 0%, #1a2a4a 50%, var(--secondary) 100%);
            overflow: hidden;
            min-height: 340px;
            display: flex;
            align-items: center;
        }
        .page-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(230, 57, 70, 0.15) 0%, transparent 70%);
        }
        .page-hero .container {
            position: relative;
            z-index: 2;
        }
        .page-hero .breadcrumb {
            background: transparent;
            padding: 0;
            margin-bottom: 1rem;
        }
        .page-hero .breadcrumb-item,
        .page-hero .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.7);
            font-size: 0.9rem;
        }
        .page-hero .breadcrumb-item a:hover {
            color: #fff;
        }
        .page-hero .breadcrumb-item.active {
            color: #fff;
            font-weight: 500;
        }
        .page-hero .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.4);
        }
        .hero-title {
            font-size: 2.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 0.8rem;
            letter-spacing: -0.5px;
        }
        .hero-title .highlight {
            color: var(--accent);
            background: linear-gradient(135deg, var(--accent), #ffb347);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .hero-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.7;
        }
        .hero-stats {
            display: flex;
            gap: 2.5rem;
            margin-top: 2rem;
            flex-wrap: wrap;
        }
        .hero-stat-item {
            color: #fff;
        }
        .hero-stat-item .num {
            font-size: 2rem;
            font-weight: 800;
            line-height: 1.2;
        }
        .hero-stat-item .label {
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.7);
        }

        /* ===== Section通用 ===== */
        .section-padding {
            padding-top: var(--spacing-section);
            padding-bottom: var(--spacing-section);
        }
        .section-title-wrap {
            margin-bottom: 3rem;
        }
        .section-title-wrap .sub-label {
            display: inline-block;
            background: rgba(230, 57, 70, 0.10);
            color: var(--primary);
            font-weight: 600;
            font-size: 0.8rem;
            padding: 0.25rem 1rem;
            border-radius: 40px;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 0.75rem;
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
            margin-bottom: 0.6rem;
        }
        .section-desc {
            color: var(--text-secondary);
            font-size: 1.05rem;
            max-width: 680px;
        }

        /* ===== 赛事分类Tab ===== */
        .events-tabs {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            margin-bottom: 2.5rem;
        }
        .events-tabs .tab-btn {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: 40px;
            padding: 0.55rem 1.6rem;
            font-weight: 500;
            font-size: 0.9rem;
            color: var(--text-secondary);
            transition: var(--transition);
            cursor: pointer;
        }
        .events-tabs .tab-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(230, 57, 70, 0.04);
        }
        .events-tabs .tab-btn.active {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: 0 4px 16px rgba(230, 57, 70, 0.25);
        }

        /* ===== 赛事卡片 ===== */
        .event-card {
            background: #fff;
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-color);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .event-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .event-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: var(--bg-light);
        }
        .event-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .event-card:hover .card-img-wrap img {
            transform: scale(1.05);
        }
        .event-card .card-badge {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--primary);
            color: #fff;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.9rem;
            border-radius: 40px;
            box-shadow: 0 2px 10px rgba(230, 57, 70, 0.3);
        }
        .event-card .card-body {
            padding: 1.5rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .event-card .card-meta {
            display: flex;
            gap: 1rem;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 0.6rem;
        }
        .event-card .card-meta i {
            margin-right: 0.3rem;
        }
        .event-card .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 0.5rem;
            line-height: 1.4;
        }
        .event-card .card-title a {
            color: inherit;
        }
        .event-card .card-title a:hover {
            color: var(--primary);
        }
        .event-card .card-text {
            color: var(--text-secondary);
            font-size: 0.9rem;
            flex: 1;
            margin-bottom: 1rem;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .event-card .card-footer-info {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 1rem;
            border-top: 1px solid var(--border-color);
            font-size: 0.85rem;
            color: var(--text-light);
        }
        .event-card .card-footer-info .tag {
            background: var(--bg-light);
            padding: 0.15rem 0.8rem;
            border-radius: 40px;
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* ===== 特色板块 ===== */
        .feature-grid .feature-item {
            background: #fff;
            border-radius: var(--border-radius);
            padding: 2rem 1.8rem;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            height: 100%;
            text-align: center;
        }
        .feature-item:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .feature-item .icon {
            font-size: 2.4rem;
            color: var(--primary);
            margin-bottom: 1rem;
            display: inline-block;
            width: 70px;
            height: 70px;
            line-height: 70px;
            border-radius: 50%;
            background: rgba(230, 57, 70, 0.08);
            transition: var(--transition);
        }
        .feature-item:hover .icon {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-item h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 0.5rem;
        }
        .feature-item p {
            color: var(--text-secondary);
            font-size: 0.9rem;
            margin-bottom: 0;
        }

        /* ===== 数据统计 ===== */
        .stats-section {
            background: linear-gradient(135deg, var(--bg-dark), var(--secondary));
            padding: 4rem 0;
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .stats-section .container {
            position: relative;
            z-index: 2;
        }
        .stat-box {
            text-align: center;
            color: #fff;
            padding: 1.5rem 0.5rem;
        }
        .stat-box .stat-num {
            font-size: 2.6rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 0.3rem;
        }
        .stat-box .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.75);
        }
        .stat-box .stat-icon {
            font-size: 2rem;
            margin-bottom: 0.8rem;
            color: var(--accent);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: #fff;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 1.2rem 0;
        }
        .faq-item:first-child {
            border-top: 1px solid var(--border-color);
        }
        .faq-question {
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 600;
            font-size: 1.05rem;
            color: var(--text-primary);
            padding: 0.3rem 0;
            background: none;
            border: none;
            width: 100%;
            text-align: left;
            transition: var(--transition);
        }
        .faq-question:hover {
            color: var(--primary);
        }
        .faq-question .icon {
            font-size: 1.2rem;
            transition: var(--transition);
            color: var(--text-light);
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-question[aria-expanded="true"] .icon {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-answer {
            padding-top: 0.6rem;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            padding: 4.5rem 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .container {
            position: relative;
            z-index: 2;
        }
        .cta-title {
            font-size: 2.2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .cta-desc {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 600px;
            margin: 0 auto 2rem;
        }
        .btn-cta-white {
            background: #fff;
            color: var(--primary) !important;
            border: none;
            border-radius: 40px;
            padding: 0.8rem 2.8rem;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }
        .btn-cta-white:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(0, 0, 0, 0.25);
            background: #f8f9fa;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 4rem 0 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-weight: 700;
            font-size: 1.4rem;
            color: #fff;
            margin-bottom: 0.8rem;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            border-radius: 10px;
            font-weight: 800;
            font-size: 1.2rem;
        }
        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            max-width: 360px;
            line-height: 1.7;
        }
        .footer-heading {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 1.2rem;
            letter-spacing: 0.3px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.6rem;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.9rem;
            transition: var(--transition);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-links a i {
            width: 20px;
            text-align: center;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding: 1.5rem 0;
            margin-top: 3rem;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 991.98px) {
            .navbar-brand {
                font-size: 1.2rem;
            }
            .navbar-brand .brand-icon {
                width: 34px;
                height: 34px;
                font-size: 1.1rem;
            }
            .search-form {
                max-width: 100%;
                margin-top: 0.5rem;
            }
            .btn-cta-nav {
                width: 100%;
                text-align: center;
                margin-top: 0.5rem;
            }
            .page-hero {
                padding: 3rem 0 3.5rem;
                min-height: 260px;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-sub {
                font-size: 1rem;
            }
            .hero-stats {
                gap: 1.5rem;
            }
            .hero-stat-item .num {
                font-size: 1.5rem;
            }
            .section-title {
                font-size: 1.7rem;
            }
            .section-padding {
                padding-top: var(--spacing-section-mobile);
                padding-bottom: var(--spacing-section-mobile);
            }
            .cta-title {
                font-size: 1.7rem;
            }
            .feature-grid .feature-item {
                padding: 1.5rem 1.2rem;
            }
            .stat-box .stat-num {
                font-size: 2rem;
            }
            .navbar-nav .nav-link.active::after {
                width: 16px;
                height: 2px;
                bottom: -2px;
            }
        }

        @media (max-width: 767.98px) {
            .page-hero {
                padding: 2.5rem 0 3rem;
                min-height: 220px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-sub {
                font-size: 0.9rem;
            }
            .hero-stats {
                gap: 1.2rem;
                margin-top: 1.2rem;
            }
            .hero-stat-item .num {
                font-size: 1.3rem;
            }
            .hero-stat-item .label {
                font-size: 0.75rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .section-desc {
                font-size: 0.9rem;
            }
            .event-card .card-title {
                font-size: 1rem;
            }
            .events-tabs .tab-btn {
                padding: 0.4rem 1.2rem;
                font-size: 0.8rem;
            }
            .cta-title {
                font-size: 1.4rem;
            }
            .cta-desc {
                font-size: 0.95rem;
            }
            .btn-cta-white {
                padding: 0.6rem 2rem;
                font-size: 0.9rem;
            }
            .stat-box .stat-num {
                font-size: 1.7rem;
            }
            .faq-question {
                font-size: 0.95rem;
            }
            .footer-bottom {
                flex-direction: column;
                gap: 0.5rem;
                text-align: center;
            }
            .navbar-nav .nav-link {
                padding: 0.5rem 0.8rem;
                font-size: 0.9rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding-left: 1rem;
                padding-right: 1rem;
            }
            .hero-title {
                font-size: 1.35rem;
            }
            .hero-sub {
                font-size: 0.85rem;
            }
            .hero-stats {
                gap: 0.8rem;
            }
            .hero-stat-item .num {
                font-size: 1.1rem;
            }
            .section-title {
                font-size: 1.2rem;
            }
            .section-title-wrap {
                margin-bottom: 1.8rem;
            }
            .event-card .card-body {
                padding: 1.2rem;
            }
            .feature-grid .feature-item {
                padding: 1.2rem 1rem;
            }
            .feature-item .icon {
                width: 56px;
                height: 56px;
                line-height: 56px;
                font-size: 1.8rem;
            }
            .cta-title {
                font-size: 1.2rem;
            }
            .cta-desc {
                font-size: 0.85rem;
            }
            .stat-box .stat-num {
                font-size: 1.4rem;
            }
            .footer-heading {
                font-size: 0.9rem;
            }
            .footer-links a {
                font-size: 0.8rem;
            }
            .navbar-brand {
                font-size: 1rem;
            }
            .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #1a2a4a;
            --primary-dark: #0f1a30;
            --primary-light: #2a3f6a;
            --accent: #e8a838;
            --accent-hover: #d0942e;
            --accent-light: #fdf4e0;
            --bg-white: #ffffff;
            --bg-light: #f8f9fa;
            --bg-dark: #1a2a4a;
            --text-dark: #1a1a2e;
            --text-body: #34495e;
            --text-muted: #7f8c9b;
            --text-light: #f0f2f5;
            --border-color: #e9ecef;
            --border-light: #f0f2f5;
            --shadow-sm: 0 2px 8px rgba(26,42,74,0.06);
            --shadow-md: 0 6px 24px rgba(26,42,74,0.10);
            --shadow-lg: 0 16px 48px rgba(26,42,74,0.12);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body { font-family: var(--font-sans); color: var(--text-body); background: var(--bg-white); line-height: 1.7; font-size: 1rem; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--accent); }
        img { max-width: 100%; height: auto; display: block; border-radius: var(--radius-sm); }
        .container { max-width: 1200px; padding-left: 24px; padding-right: 24px; margin: 0 auto; }
        .container-narrow { max-width: 840px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }

        .site-header { background: var(--bg-white); box-shadow: var(--shadow-sm); position: sticky; top: 0; z-index: 1050; border-bottom: 1px solid var(--border-color); }
        .site-header .navbar { padding: 0.75rem 0; }
        .navbar-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.35rem; color: var(--primary) !important; letter-spacing: -0.3px; }
        .navbar-brand .brand-icon { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: var(--accent); color: var(--primary-dark); border-radius: var(--radius-sm); font-weight: 800; font-size: 1.2rem; }
        .navbar-nav .nav-link { font-weight: 500; color: var(--text-body) !important; padding: 0.6rem 1.1rem !important; border-radius: var(--radius-sm); transition: var(--transition); position: relative; font-size: 0.95rem; }
        .navbar-nav .nav-link:hover { color: var(--primary) !important; background: var(--bg-light); }
        .navbar-nav .nav-link.active { color: var(--primary) !important; background: var(--accent-light); }
        .navbar-nav .nav-link.active::after { content: ''; position: absolute; bottom: 2px; left: 1.1rem; right: 1.1rem; height: 3px; background: var(--accent); border-radius: 4px; }
        .search-form { position: relative; max-width: 240px; width: 100%; }
        .search-form .search-icon { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 0.85rem; pointer-events: none; }
        .search-form .form-control { border-radius: 50px; border: 1.5px solid var(--border-color); padding-left: 40px; font-size: 0.9rem; height: 42px; background: var(--bg-light); transition: var(--transition); }
        .search-form .form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 4px rgba(232,168,56,0.12); background: var(--bg-white); }
        .btn-cta-nav { background: var(--primary); color: #fff !important; border-radius: 50px; padding: 0.5rem 1.5rem; font-weight: 600; font-size: 0.9rem; border: none; transition: var(--transition); white-space: nowrap; }
        .btn-cta-nav:hover { background: var(--primary-light); transform: translateY(-1px); box-shadow: var(--shadow-md); }
        .navbar-toggler { border: none; padding: 0.5rem; border-radius: var(--radius-sm); }
        .navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(232,168,56,0.25); }
        .navbar-toggler-icon { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231a2a4a' stroke-width='2.5' stroke-linecap='round' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E"); }

        .article-hero { position: relative; padding: 80px 0 60px; background: var(--bg-dark); color: var(--text-light); overflow: hidden; min-height: 360px; display: flex; align-items: center; }
        .article-hero-bg { position: absolute; inset: 0; background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat; opacity: 0.25; z-index: 1; }
        .article-hero-bg::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(26,42,74,0.92) 0%, rgba(15,26,48,0.88) 100%); }
        .article-hero .container { position: relative; z-index: 2; }
        .article-hero .hero-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(232,168,56,0.18); color: var(--accent); padding: 6px 18px; border-radius: 50px; font-size: 0.85rem; font-weight: 500; margin-bottom: 18px; border: 1px solid rgba(232,168,56,0.3); }
        .article-hero .hero-badge i { font-size: 0.75rem; }
        .article-hero h1 { font-size: 2.6rem; font-weight: 800; line-height: 1.25; color: #fff; margin-bottom: 16px; letter-spacing: -0.5px; }
        .article-hero .hero-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 0.95rem; color: rgba(255,255,255,0.7); margin-bottom: 14px; }
        .article-hero .hero-meta i { margin-right: 6px; color: var(--accent); }
        .article-hero .hero-excerpt { font-size: 1.1rem; color: rgba(255,255,255,0.8); max-width: 720px; line-height: 1.7; }

        .article-main { padding: 60px 0; background: var(--bg-white); }
        .article-body { font-size: 1.05rem; line-height: 1.9; color: var(--text-body); }
        .article-body h2, .article-body h3, .article-body h4 { color: var(--primary); margin-top: 2rem; margin-bottom: 1rem; font-weight: 700; }
        .article-body h2 { font-size: 1.65rem; }
        .article-body h3 { font-size: 1.35rem; }
        .article-body p { margin-bottom: 1.2rem; }
        .article-body ul, .article-body ol { margin-bottom: 1.2rem; padding-left: 1.5rem; }
        .article-body li { margin-bottom: 0.5rem; }
        .article-body img { border-radius: var(--radius-md); margin: 1.8rem 0; box-shadow: var(--shadow-sm); }
        .article-body blockquote { border-left: 4px solid var(--accent); padding: 1rem 1.5rem; background: var(--accent-light); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin: 1.8rem 0; font-style: italic; color: var(--text-dark); }
        .article-body a { color: var(--accent-hover); text-decoration: underline; text-underline-offset: 3px; }
        .article-body a:hover { color: var(--primary); }

        .article-info { padding: 40px 0; background: var(--bg-light); border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); }
        .article-info .tag-list { display: flex; flex-wrap: wrap; gap: 10px; }
        .article-info .tag-list .tag { display: inline-block; background: var(--bg-white); border: 1px solid var(--border-color); padding: 6px 18px; border-radius: 50px; font-size: 0.85rem; color: var(--text-body); transition: var(--transition); }
        .article-info .tag-list .tag:hover { background: var(--accent-light); border-color: var(--accent); color: var(--primary); }
        .article-info .share-list { display: flex; gap: 12px; }
        .article-info .share-list a { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border-radius: 50%; background: var(--bg-white); border: 1px solid var(--border-color); color: var(--text-body); font-size: 1.1rem; transition: var(--transition); }
        .article-info .share-list a:hover { background: var(--accent); border-color: var(--accent); color: #fff; transform: translateY(-3px); box-shadow: var(--shadow-md); }

        .article-nav { padding: 40px 0; background: var(--bg-white); }
        .article-nav .nav-link-card { display: block; padding: 20px 24px; background: var(--bg-light); border-radius: var(--radius-md); border: 1px solid var(--border-color); transition: var(--transition); }
        .article-nav .nav-link-card:hover { background: var(--accent-light); border-color: var(--accent); box-shadow: var(--shadow-sm); transform: translateY(-2px); }
        .article-nav .nav-link-card .nav-label { font-size: 0.8rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 4px; }
        .article-nav .nav-link-card .nav-title { font-size: 1rem; font-weight: 600; color: var(--text-dark); }
        .article-nav .nav-link-card:hover .nav-title { color: var(--primary); }

        .related-section { padding: 60px 0; background: var(--bg-light); }
        .related-section .section-title { font-size: 1.75rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
        .related-section .section-subtitle { color: var(--text-muted); margin-bottom: 32px; font-size: 1rem; }
        .related-card { background: var(--bg-white); border-radius: var(--radius-md); overflow: hidden; box-shadow: var(--shadow-sm); transition: var(--transition); border: 1px solid var(--border-color); height: 100%; }
        .related-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
        .related-card .card-img-wrap { position: relative; overflow: hidden; aspect-ratio: 16/9; background: var(--bg-light); }
        .related-card .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: var(--transition); }
        .related-card:hover .card-img-wrap img { transform: scale(1.05); }
        .related-card .card-img-wrap .card-cat { position: absolute; top: 14px; left: 14px; background: var(--accent); color: var(--primary-dark); padding: 4px 14px; border-radius: 50px; font-size: 0.75rem; font-weight: 600; }
        .related-card .card-body { padding: 20px; }
        .related-card .card-body .card-title { font-size: 1.05rem; font-weight: 700; color: var(--text-dark); margin-bottom: 8px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
        .related-card .card-body .card-text { font-size: 0.9rem; color: var(--text-muted); display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; margin-bottom: 12px; }
        .related-card .card-body .card-meta { font-size: 0.8rem; color: var(--text-muted); display: flex; align-items: center; gap: 14px; }
        .related-card .card-body .card-meta i { margin-right: 4px; color: var(--accent); }

        .cta-section { padding: 60px 0; background: var(--bg-dark); position: relative; overflow: hidden; }
        .cta-section::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat; opacity: 0.10; z-index: 1; }
        .cta-section .container { position: relative; z-index: 2; }
        .cta-section h2 { font-size: 2rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.75); font-size: 1.05rem; max-width: 560px; margin: 0 auto 28px; }
        .btn-cta-gold { background: var(--accent); color: var(--primary-dark) !important; border-radius: 50px; padding: 0.85rem 2.4rem; font-weight: 700; font-size: 1rem; border: none; transition: var(--transition); display: inline-flex; align-items: center; gap: 10px; }
        .btn-cta-gold:hover { background: #d49a2e; transform: translateY(-2px); box-shadow: 0 8px 32px rgba(232,168,56,0.35); }
        .btn-cta-outline-light { background: transparent; color: #fff !important; border: 2px solid rgba(255,255,255,0.3); border-radius: 50px; padding: 0.85rem 2.4rem; font-weight: 600; font-size: 1rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 10px; }
        .btn-cta-outline-light:hover { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.6); transform: translateY(-2px); }

        .not-found-area { padding: 80px 0; text-align: center; }
        .not-found-area .not-found-icon { font-size: 4rem; color: var(--text-muted); margin-bottom: 20px; }
        .not-found-area h2 { font-size: 2rem; color: var(--text-dark); margin-bottom: 12px; }
        .not-found-area p { color: var(--text-muted); font-size: 1.1rem; margin-bottom: 24px; }
        .not-found-area .btn-back { background: var(--primary); color: #fff; border-radius: 50px; padding: 0.7rem 2rem; font-weight: 600; border: none; transition: var(--transition); display: inline-flex; align-items: center; gap: 8px; }
        .not-found-area .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        .site-footer { background: var(--primary-dark); color: rgba(255,255,255,0.75); padding: 56px 0 28px; }
        .site-footer .footer-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.35rem; color: #fff; margin-bottom: 14px; }
        .site-footer .footer-brand .brand-icon { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; background: var(--accent); color: var(--primary-dark); border-radius: var(--radius-sm); font-weight: 800; font-size: 1.2rem; }
        .site-footer .footer-desc { font-size: 0.9rem; line-height: 1.7; color: rgba(255,255,255,0.6); max-width: 340px; }
        .site-footer .footer-heading { font-size: 1rem; font-weight: 600; color: #fff; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
        .site-footer .footer-heading::after { content: ''; position: absolute; bottom: 0; left: 0; width: 32px; height: 3px; background: var(--accent); border-radius: 4px; }
        .site-footer .footer-links { list-style: none; padding: 0; margin: 0; }
        .site-footer .footer-links li { margin-bottom: 10px; }
        .site-footer .footer-links a { color: rgba(255,255,255,0.6); font-size: 0.9rem; transition: var(--transition); display: inline-flex; align-items: center; gap: 6px; }
        .site-footer .footer-links a:hover { color: var(--accent); transform: translateX(4px); }
        .site-footer .footer-bottom { border-top: 1px solid rgba(255,255,255,0.08); padding-top: 24px; margin-top: 32px; font-size: 0.85rem; color: rgba(255,255,255,0.45); }

        @media (max-width: 992px) {
            .article-hero { padding: 56px 0 44px; min-height: 280px; }
            .article-hero h1 { font-size: 2rem; }
            .navbar-nav .nav-link { padding: 0.5rem 0.8rem !important; }
            .search-form { max-width: 100%; margin-top: 8px; }
            .btn-cta-nav { width: 100%; text-align: center; }
            .related-card .card-body .card-title { font-size: 0.95rem; }
        }
        @media (max-width: 768px) {
            .article-hero { padding: 44px 0 36px; min-height: 220px; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-hero .hero-excerpt { font-size: 0.95rem; }
            .article-body { font-size: 0.98rem; }
            .article-main { padding: 36px 0; }
            .related-section { padding: 40px 0; }
            .related-section .section-title { font-size: 1.4rem; }
            .cta-section h2 { font-size: 1.5rem; }
            .site-footer .footer-brand { font-size: 1.15rem; }
            .article-info .share-list { margin-top: 16px; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.35rem; }
            .article-hero { padding: 32px 0 28px; min-height: 180px; }
            .article-hero .hero-meta { font-size: 0.8rem; gap: 10px; }
            .article-body { font-size: 0.92rem; }
            .article-nav .nav-link-card { padding: 14px 16px; }
            .related-card .card-body { padding: 14px; }
            .btn-cta-gold, .btn-cta-outline-light { padding: 0.7rem 1.6rem; font-size: 0.9rem; }
            .container { padding-left: 16px; padding-right: 16px; }
            .container-narrow { padding-left: 16px; padding-right: 16px; }
        }

/* roulang page: category2 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a3a5c;
            --primary-light: #2a5a8c;
            --primary-dark: #0f1f33;
            --secondary: #e8a838;
            --secondary-light: #f0c060;
            --secondary-dark: #c88a20;
            --accent: #ff6b35;
            --bg-light: #f7f9fc;
            --bg-dark: #0b1623;
            --bg-card: #ffffff;
            --text-primary: #1a2a3a;
            --text-secondary: #4a5a6a;
            --text-light: #8a9aaa;
            --text-white: #f0f4f8;
            --border-color: #e2e8f0;
            --border-light: rgba(255, 255, 255, 0.12);
            --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.18);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --container-max: 1200px;
            --header-height: 74px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::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-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-light);
            overflow-x: hidden;
            padding-top: var(--header-height);
        }

        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        /* ===== 容器 ===== */
        .container {
            max-width: var(--container-max);
            padding-left: 20px;
            padding-right: 20px;
            margin: 0 auto;
        }

        /* ===== 站点头部 ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            transition: var(--transition);
        }
        .site-header .container {
            height: 100%;
            display: flex;
            align-items: center;
        }
        .site-header .navbar {
            width: 100%;
            padding: 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: var(--primary-dark) !important;
            letter-spacing: -0.3px;
            padding: 0;
            text-decoration: none;
        }
        .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 800;
            box-shadow: 0 4px 12px rgba(26, 58, 92, 0.25);
        }
        .navbar-nav {
            gap: 4px;
        }
        .nav-link {
            padding: 8px 18px !important;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary) !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .nav-link:hover {
            color: var(--primary) !important;
            background: rgba(26, 58, 92, 0.06);
        }
        .nav-link.active {
            color: var(--primary) !important;
            background: rgba(26, 58, 92, 0.10);
            font-weight: 600;
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .navbar-toggler {
            border: none;
            padding: 6px 10px;
            border-radius: var(--radius-sm);
            box-shadow: none !important;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231a3a5c' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2.5' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }
        .search-form {
            position: relative;
            max-width: 200px;
        }
        .search-form .search-icon {
            position: absolute;
            left: 14px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 14px;
            pointer-events: none;
        }
        .search-form .form-control {
            padding: 8px 16px 8px 40px;
            border-radius: 50px;
            border: 1.5px solid var(--border-color);
            background: var(--bg-light);
            font-size: 14px;
            color: var(--text-primary);
            transition: var(--transition);
            box-shadow: none;
            width: 100%;
        }
        .search-form .form-control:focus {
            border-color: var(--primary-light);
            background: #fff;
            box-shadow: 0 0 0 4px rgba(26, 58, 92, 0.10);
        }
        .btn-cta-nav {
            padding: 8px 24px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: #fff !important;
            font-weight: 600;
            font-size: 14px;
            border: none;
            box-shadow: 0 4px 16px rgba(232, 168, 56, 0.30);
            transition: var(--transition);
            white-space: nowrap;
            display: inline-flex;
            align-items: center;
        }
        .btn-cta-nav:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 168, 56, 0.40);
            background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
        }
        .btn-cta-nav i {
            font-size: 13px;
        }

        /* ===== 内页 Banner ===== */
        .page-banner {
            background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-dark) 50%, #0d1f2e 100%);
            padding: 80px 0 70px;
            position: relative;
            overflow: hidden;
            min-height: 320px;
            display: flex;
            align-items: center;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 120px;
            background: linear-gradient(to top, var(--bg-light), transparent);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .page-banner .breadcrumb {
            background: none;
            padding: 0;
            margin: 0 0 16px;
            font-size: 14px;
        }
        .page-banner .breadcrumb-item,
        .page-banner .breadcrumb-item a {
            color: rgba(255, 255, 255, 0.7);
        }
        .page-banner .breadcrumb-item a:hover {
            color: var(--secondary);
        }
        .page-banner .breadcrumb-item.active {
            color: var(--secondary-light);
        }
        .page-banner .breadcrumb-item+.breadcrumb-item::before {
            color: rgba(255, 255, 255, 0.4);
        }
        .page-banner h1 {
            font-size: 44px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 12px;
            letter-spacing: -0.5px;
            line-height: 1.2;
        }
        .page-banner .banner-sub {
            font-size: 18px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 620px;
            line-height: 1.7;
        }
        .banner-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px;
            margin-top: 28px;
        }
        .banner-stats .stat-item {
            color: #fff;
        }
        .banner-stats .stat-num {
            font-size: 30px;
            font-weight: 800;
            color: var(--secondary);
            line-height: 1.2;
        }
        .banner-stats .stat-label {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 2px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 52px;
        }
        .section-header .section-tag {
            display: inline-block;
            padding: 4px 18px;
            background: rgba(232, 168, 56, 0.15);
            color: var(--secondary-dark);
            border-radius: 50px;
            font-size: 13px;
            font-weight: 600;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }
        .section-header h2 {
            font-size: 34px;
            font-weight: 800;
            color: var(--primary-dark);
            margin: 0 0 14px;
            letter-spacing: -0.3px;
        }
        .section-header .section-desc {
            font-size: 17px;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
            line-height: 1.7;
        }
        .section-header.text-start {
            text-align: left !important;
        }
        .section-header.text-start .section-desc {
            margin: 0;
        }

        /* ===== 卡片通用 ===== */
        .card-custom {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-custom:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-custom .card-img-top {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            border-bottom: 1px solid var(--border-color);
        }
        .card-custom .card-body {
            padding: 24px 22px 26px;
        }
        .card-custom .card-body .card-tag {
            display: inline-block;
            padding: 2px 12px;
            background: rgba(26, 58, 92, 0.08);
            color: var(--primary-light);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 10px;
        }
        .card-custom .card-body .card-title {
            font-size: 19px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 10px;
            line-height: 1.4;
        }
        .card-custom .card-body .card-text {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
        }
        .card-custom .card-body .card-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 13px;
            color: var(--text-light);
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-top: 4px;
        }
        .card-custom .card-body .card-meta i {
            margin-right: 4px;
        }
        .card-link-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 600;
            font-size: 14px;
            color: var(--primary-light);
            transition: var(--transition);
        }
        .card-link-btn:hover {
            color: var(--primary);
            gap: 10px;
        }
        .card-link-btn i {
            font-size: 12px;
            transition: var(--transition);
        }

        /* ===== 策略与方法板块 ===== */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 28px;
        }
        .strategy-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 32px 28px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }
        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary), var(--accent));
            opacity: 0;
            transition: var(--transition);
        }
        .strategy-card:hover::before {
            opacity: 1;
        }
        .strategy-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .strategy-card .strategy-icon {
            width: 56px;
            height: 56px;
            border-radius: var(--radius-sm);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            color: #fff;
            margin-bottom: 18px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            box-shadow: 0 6px 20px rgba(26, 58, 92, 0.20);
        }
        .strategy-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 10px;
        }
        .strategy-card p {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin: 0 0 16px;
        }
        .strategy-card .strategy-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 8px;
        }
        .strategy-card .strategy-tags span {
            padding: 3px 14px;
            background: var(--bg-light);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 500;
            color: var(--text-secondary);
            border: 1px solid var(--border-color);
        }

        /* ===== 专家推荐板块 ===== */
        .expert-card {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .expert-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-lg);
        }
        .expert-card .expert-top {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 16px;
        }
        .expert-card .expert-avatar {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            flex-shrink: 0;
        }
        .expert-card .expert-info h4 {
            font-size: 17px;
            font-weight: 700;
            color: var(--primary-dark);
            margin: 0 0 2px;
        }
        .expert-card .expert-info span {
            font-size: 13px;
            color: var(--text-light);
        }
        .expert-card .expert-badge {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            padding: 2px 12px;
            background: rgba(232, 168, 56, 0.15);
            color: var(--secondary-dark);
            border-radius: 50px;
            font-size: 12px;
            font-weight: 600;
            margin-bottom: 12px;
            align-self: flex-start;
        }
        .expert-card .expert-prediction {
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.7;
            flex: 1;
            margin-bottom: 14px;
        }
        .expert-card .expert-stats {
            display: flex;
            gap: 20px;
            border-top: 1px solid var(--border-color);
            padding-top: 14px;
            margin-top: auto;
        }
        .expert-card .expert-stats div {
            font-size: 13px;
            color: var(--text-light);
        }
        .expert-card .expert-stats strong {
            color: var(--primary-dark);
            font-weight: 700;
        }

        /* ===== 数据表格 / 排行 ===== */
        .ranking-table-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .ranking-table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }
        .ranking-table thead {
            background: var(--primary-dark);
            color: #fff;
        }
        .ranking-table thead th {
            padding: 16px 20px;
            font-weight: 600;
            font-size: 14px;
            letter-spacing: 0.3px;
            text-align: left;
        }
        .ranking-table tbody td {
            padding: 14px 20px;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-secondary);
            vertical-align: middle;
        }
        .ranking-table tbody tr:hover {
            background: rgba(26, 58, 92, 0.03);
        }
        .ranking-table tbody tr:last-child td {
            border-bottom: none;
        }
        .ranking-table .rank-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            font-weight: 700;
            font-size: 13px;
            background: var(--bg-light);
            color: var(--text-secondary);
        }
        .ranking-table .rank-num.top {
            background: var(--secondary);
            color: #fff;
        }
        .ranking-table .team-name {
            font-weight: 600;
            color: var(--primary-dark);
        }
        .ranking-table .win-rate {
            font-weight: 700;
            color: var(--accent);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }
        .faq-item {
            border-bottom: 1px solid var(--border-color);
            padding: 0;
        }
        .faq-item:last-child {
            border-bottom: none;
        }
        .faq-question {
            padding: 22px 28px;
            font-size: 17px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            transition: var(--transition);
            background: none;
            border: none;
            width: 100%;
            text-align: left;
        }
        .faq-question:hover {
            background: rgba(26, 58, 92, 0.03);
        }
        .faq-question .faq-icon {
            font-size: 18px;
            color: var(--secondary);
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-question[aria-expanded="true"] .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            padding: 0 28px 22px;
            font-size: 15px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ===== CTA ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            border-radius: var(--radius-lg);
            padding: 60px 48px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-content {
            position: relative;
            z-index: 2;
        }
        .cta-section h3 {
            font-size: 34px;
            font-weight: 800;
            color: #fff;
            margin: 0 0 14px;
        }
        .cta-section p {
            font-size: 17px;
            color: rgba(255, 255, 255, 0.8);
            max-width: 540px;
            margin: 0 auto 28px;
            line-height: 1.7;
        }
        .cta-section .btn-cta {
            padding: 14px 42px;
            border-radius: 50px;
            background: var(--secondary);
            color: var(--primary-dark) !important;
            font-weight: 700;
            font-size: 16px;
            border: none;
            box-shadow: 0 8px 32px rgba(232, 168, 56, 0.35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }
        .cta-section .btn-cta:hover {
            transform: translateY(-3px) scale(1.02);
            box-shadow: 0 12px 40px rgba(232, 168, 56, 0.50);
            background: var(--secondary-light);
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 32px;
            margin-top: 20px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 22px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--secondary), var(--secondary-dark));
            color: var(--primary-dark);
            border-radius: var(--radius-sm);
            font-size: 18px;
            font-weight: 800;
        }
        .site-footer .footer-desc {
            font-size: 15px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            max-width: 360px;
        }
        .site-footer .footer-heading {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin: 0 0 18px;
            position: relative;
            padding-bottom: 10px;
        }
        .site-footer .footer-heading::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 28px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .site-footer .footer-links {
            padding: 0;
            margin: 0;
        }
        .site-footer .footer-links li {
            margin-bottom: 10px;
        }
        .site-footer .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }
        .site-footer .footer-links a:hover {
            color: var(--secondary);
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            padding-top: 24px;
            margin-top: 40px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.5);
        }

        /* ===== 响应式 ===== */
        @media (max-width: 1024px) {
            .page-banner h1 {
                font-size: 36px;
            }
            .section-header h2 {
                font-size: 28px;
            }
            .strategy-grid {
                grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
            }
            .cta-section {
                padding: 48px 32px;
            }
            .cta-section h3 {
                font-size: 28px;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 62px;
            }
            .navbar-brand {
                font-size: 18px;
            }
            .navbar-brand .brand-icon {
                width: 32px;
                height: 32px;
                font-size: 15px;
            }
            .search-form {
                max-width: 100%;
                margin: 8px 0;
            }
            .btn-cta-nav {
                width: 100%;
                justify-content: center;
            }
            .page-banner {
                padding: 60px 0 50px;
                min-height: 240px;
            }
            .page-banner h1 {
                font-size: 28px;
            }
            .page-banner .banner-sub {
                font-size: 16px;
            }
            .banner-stats {
                gap: 20px;
            }
            .banner-stats .stat-num {
                font-size: 24px;
            }
            .section {
                padding: 56px 0;
            }
            .section-header {
                margin-bottom: 36px;
            }
            .section-header h2 {
                font-size: 24px;
            }
            .section-header .section-desc {
                font-size: 15px;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
            .strategy-card {
                padding: 24px 20px;
            }
            .ranking-table-wrap {
                overflow-x: auto;
            }
            .ranking-table {
                font-size: 13px;
                min-width: 600px;
            }
            .ranking-table thead th,
            .ranking-table tbody td {
                padding: 12px 14px;
            }
            .faq-question {
                padding: 18px 20px;
                font-size: 15px;
            }
            .faq-answer {
                padding: 0 20px 18px;
                font-size: 14px;
            }
            .cta-section {
                padding: 40px 24px;
                border-radius: var(--radius-md);
            }
            .cta-section h3 {
                font-size: 24px;
            }
            .cta-section p {
                font-size: 15px;
            }
            .cta-section .btn-cta {
                padding: 12px 32px;
                font-size: 15px;
            }
            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-brand {
                font-size: 18px;
            }
            .expert-card {
                padding: 20px 18px;
            }
            .card-custom .card-body {
                padding: 18px 16px 20px;
            }
        }

        @media (max-width: 520px) {
            .page-banner h1 {
                font-size: 24px;
            }
            .page-banner .banner-sub {
                font-size: 14px;
            }
            .banner-stats {
                gap: 14px;
                flex-wrap: wrap;
            }
            .banner-stats .stat-item {
                flex: 1 1 40%;
            }
            .section-header h2 {
                font-size: 21px;
            }
            .strategy-card h3 {
                font-size: 18px;
            }
            .expert-card .expert-avatar {
                width: 42px;
                height: 42px;
                font-size: 16px;
            }
            .expert-card .expert-info h4 {
                font-size: 15px;
            }
            .cta-section h3 {
                font-size: 20px;
            }
            .cta-section .btn-cta {
                width: 100%;
                justify-content: center;
            }
            .faq-question {
                font-size: 14px;
                padding: 16px 16px;
            }
            .faq-answer {
                padding: 0 16px 16px;
                font-size: 13px;
            }
            .navbar-nav {
                gap: 0;
            }
            .nav-link {
                padding: 10px 16px !important;
                font-size: 14px;
            }
            .nav-link.active::after {
                display: none;
            }
        }

        /* ===== 工具类 ===== */
        .text-gold {
            color: var(--secondary) !important;
        }
        .bg-soft-gold {
            background: rgba(232, 168, 56, 0.08);
        }
        .gap-2 {
            gap: 8px;
        }
        .gap-3 {
            gap: 16px;
        }
        .gap-4 {
            gap: 24px;
        }
        .mb-0 {
            margin-bottom: 0;
        }
        .mt-2 {
            margin-top: 8px;
        }
        .mt-3 {
            margin-top: 16px;
        }
        .mt-4 {
            margin-top: 24px;
        }
        .mb-3 {
            margin-bottom: 16px;
        }
        .mb-4 {
            margin-bottom: 24px;
        }
        .rounded-pill {
            border-radius: 50px !important;
        }
        .fw-700 {
            font-weight: 700;
        }
        .text-center {
            text-align: center;
        }
        .d-flex {
            display: flex;
        }
        .flex-wrap {
            flex-wrap: wrap;
        }
        .align-items-center {
            align-items: center;
        }
        .justify-content-center {
            justify-content: center;
        }
        .justify-content-between {
            justify-content: space-between;
        }
        .flex-column {
            flex-direction: column;
        }
        .w-100 {
            width: 100%;
        }
        .h-100 {
            height: 100%;
        }
        .position-relative {
            position: relative;
        }
        .overflow-hidden {
            overflow: hidden;
        }
        .list-unstyled {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .row.g-4>[class*="col-"] {
            padding-top: 0;
            padding-bottom: 0;
        }
        .row.g-4 {
            margin-top: -0;
            margin-bottom: -0;
        }

/* roulang page: category3 */
/* ===== 设计变量 ===== */
    :root {
        --primary: #1a2a6c;
        --primary-light: #2d4a8e;
        --primary-dark: #0f1a44;
        --secondary: #e8491d;
        --secondary-light: #f05a2f;
        --accent: #f5a623;
        --accent-light: #f7c142;
        --bg-body: #f8f9fc;
        --bg-card: #ffffff;
        --bg-dark: #0f1a44;
        --bg-section-alt: #f0f2f8;
        --text-primary: #1a1a2e;
        --text-secondary: #4a4a6a;
        --text-muted: #8888aa;
        --text-white: #ffffff;
        --border-color: #e2e6ee;
        --border-light: #f0f2f6;
        --shadow-sm: 0 2px 8px rgba(26, 42, 108, 0.06);
        --shadow-md: 0 4px 20px rgba(26, 42, 108, 0.10);
        --shadow-lg: 0 12px 40px rgba(26, 42, 108, 0.14);
        --shadow-hover: 0 16px 48px rgba(232, 73, 29, 0.16);
        --radius-sm: 8px;
        --radius-md: 14px;
        --radius-lg: 20px;
        --radius-xl: 28px;
        --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        --container-max: 1200px;
        --header-height: 76px;
    }

    /* ===== Reset & Base ===== */
    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }
    html {
        scroll-behavior: smooth;
        -webkit-font-smoothing: antialiased;
    }
    body {
        font-family: var(--font-sans);
        background-color: var(--bg-body);
        color: var(--text-primary);
        line-height: 1.7;
        margin: 0;
        padding: 0;
        padding-top: var(--header-height);
    }
    a {
        color: var(--primary);
        text-decoration: none;
        transition: var(--transition);
    }
    a:hover {
        color: var(--secondary);
    }
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }
    .container {
        max-width: var(--container-max);
        padding-left: 20px;
        padding-right: 20px;
        margin: 0 auto;
    }

    /* ===== Header / Nav ===== */
    .site-header {
        background: var(--bg-card);
        border-bottom: 1px solid var(--border-color);
        box-shadow: 0 1px 4px rgba(26, 42, 108, 0.04);
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 1050;
        height: var(--header-height);
        display: flex;
        align-items: center;
    }
    .site-header .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }
    .navbar {
        width: 100%;
        padding: 0;
        display: flex;
        align-items: center;
        flex-wrap: nowrap;
    }
    .navbar-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.4rem;
        font-weight: 800;
        color: var(--primary);
        letter-spacing: -0.3px;
        white-space: nowrap;
        padding: 0;
        margin-right: 24px;
    }
    .navbar-brand:hover {
        color: var(--primary);
    }
    .brand-icon {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        background: linear-gradient(135deg, var(--primary), var(--primary-light));
        color: #fff;
        border-radius: var(--radius-sm);
        font-size: 1.2rem;
        font-weight: 700;
        box-shadow: 0 2px 8px rgba(26, 42, 108, 0.20);
        flex-shrink: 0;
    }
    .navbar-nav {
        display: flex;
        align-items: center;
        gap: 2px;
    }
    .nav-item .nav-link {
        padding: 8px 18px;
        font-size: 0.95rem;
        font-weight: 500;
        color: var(--text-secondary);
        border-radius: var(--radius-sm);
        transition: var(--transition);
        white-space: nowrap;
    }
    .nav-item .nav-link:hover {
        color: var(--primary);
        background: rgba(26, 42, 108, 0.05);
    }
    .nav-item .nav-link.active {
        color: var(--secondary);
        background: rgba(232, 73, 29, 0.08);
        font-weight: 600;
    }
    .search-form {
        position: relative;
        display: flex;
        align-items: center;
    }
    .search-form .search-icon {
        position: absolute;
        left: 14px;
        color: var(--text-muted);
        font-size: 0.9rem;
        pointer-events: none;
    }
    .search-form .form-control {
        width: 200px;
        padding: 7px 14px 7px 40px;
        border-radius: 50px;
        border: 1.5px solid var(--border-color);
        background: var(--bg-body);
        font-size: 0.9rem;
        transition: var(--transition);
    }
    .search-form .form-control:focus {
        border-color: var(--primary-light);
        box-shadow: 0 0 0 4px rgba(26, 42, 108, 0.08);
        outline: none;
        background: var(--bg-card);
    }
    .btn-cta-nav {
        background: linear-gradient(135deg, var(--secondary), var(--secondary-light));
        color: #fff;
        border: none;
        padding: 8px 22px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 0.9rem;
        transition: var(--transition);
        white-space: nowrap;
        box-shadow: 0 4px 14px rgba(232, 73, 29, 0.30);
    }
    .btn-cta-nav:hover {
        transform: translateY(-2px);
        box-shadow: 0 8px 24px rgba(232, 73, 29, 0.40);
        color: #fff;
        background: linear-gradient(135deg, var(--secondary-light), var(--secondary));
    }
    .navbar-toggler {
        border: none;
        padding: 6px 10px;
        background: transparent;
    }
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231a2a6c' stroke-width='2.5' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        width: 26px;
        height: 26px;
    }

    /* ===== Page Banner ===== */
    .page-banner {
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
        padding: 80px 0 70px;
        position: relative;
        overflow: hidden;
        margin-top: 0;
    }
    .page-banner::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
        opacity: 0.15;
        mix-blend-mode: overlay;
    }
    .page-banner::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        right: 0;
        height: 80px;
        background: linear-gradient(to top, var(--bg-body), transparent);
    }
    .page-banner .container {
        position: relative;
        z-index: 2;
    }
    .page-banner h1 {
        font-size: 2.8rem;
        font-weight: 800;
        color: var(--text-white);
        margin-bottom: 16px;
        letter-spacing: -0.5px;
        line-height: 1.2;
    }
    .page-banner p {
        font-size: 1.15rem;
        color: rgba(255, 255, 255, 0.85);
        max-width: 640px;
        margin-bottom: 0;
        line-height: 1.6;
    }
    .page-banner .breadcrumb-wrap {
        display: flex;
        align-items: center;
        gap: 10px;
        margin-bottom: 20px;
        color: rgba(255, 255, 255, 0.7);
        font-size: 0.9rem;
    }
    .page-banner .breadcrumb-wrap a {
        color: rgba(255, 255, 255, 0.85);
        text-decoration: none;
        transition: var(--transition);
    }
    .page-banner .breadcrumb-wrap a:hover {
        color: var(--accent-light);
    }
    .page-banner .breadcrumb-wrap .sep {
        color: rgba(255, 255, 255, 0.4);
    }

    /* ===== Section通用 ===== */
    .section-padding {
        padding: 80px 0;
    }
    .section-alt {
        background: var(--bg-section-alt);
    }
    .section-title {
        font-size: 2rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 12px;
        letter-spacing: -0.3px;
    }
    .section-subtitle {
        font-size: 1.05rem;
        color: var(--text-muted);
        max-width: 580px;
        margin-bottom: 40px;
        line-height: 1.6;
    }
    .section-title-center {
        text-align: center;
    }
    .section-subtitle-center {
        text-align: center;
        margin-left: auto;
        margin-right: auto;
    }

    /* ===== Stats Cards ===== */
    .stats-grid {
        display: grid;
        grid-template-columns: repeat(4, 1fr);
        gap: 24px;
    }
    .stat-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        padding: 28px 20px;
        text-align: center;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
    }
    .stat-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--shadow-md);
        border-color: var(--primary-light);
    }
    .stat-card .stat-number {
        font-size: 2.6rem;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.2;
        margin-bottom: 4px;
        background: linear-gradient(135deg, var(--primary), var(--secondary));
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }
    .stat-card .stat-label {
        font-size: 0.95rem;
        color: var(--text-secondary);
        font-weight: 500;
    }
    .stat-card .stat-icon {
        font-size: 2rem;
        color: var(--primary-light);
        margin-bottom: 12px;
        opacity: 0.7;
    }

    /* ===== Data Analysis Cards ===== */
    .analysis-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 28px;
    }
    .analysis-card {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        overflow: hidden;
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        transition: var(--transition);
        display: flex;
        flex-direction: column;
    }
    .analysis-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-lg);
        border-color: var(--primary-light);
    }
    .analysis-card .card-img {
        height: 200px;
        background-size: cover;
        background-position: center;
        position: relative;
    }
    .analysis-card .card-img .badge-tag {
        position: absolute;
        top: 14px;
        left: 14px;
        background: var(--secondary);
        color: #fff;
        padding: 4px 14px;
        border-radius: 50px;
        font-size: 0.75rem;
        font-weight: 600;
        letter-spacing: 0.3px;
    }
    .analysis-card .card-body {
        padding: 22px 24px 24px;
        flex: 1;
        display: flex;
        flex-direction: column;
    }
    .analysis-card .card-body h3 {
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: 10px;
        line-height: 1.4;
    }
    .analysis-card .card-body p {
        font-size: 0.95rem;
        color: var(--text-secondary);
        line-height: 1.6;
        margin-bottom: 16px;
        flex: 1;
    }
    .analysis-card .card-meta {
        display: flex;
        align-items: center;
        justify-content: space-between;
        font-size: 0.85rem;
        color: var(--text-muted);
        border-top: 1px solid var(--border-light);
        padding-top: 14px;
        margin-top: auto;
    }
    .analysis-card .card-meta .meta-item {
        display: flex;
        align-items: center;
        gap: 6px;
    }

    /* ===== Data Table ===== */
    .data-table-wrap {
        background: var(--bg-card);
        border-radius: var(--radius-md);
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
    }
    .data-table-wrap table {
        margin-bottom: 0;
    }
    .data-table-wrap thead {
        background: var(--primary);
        color: #fff;
    }
    .data-table-wrap thead th {
        padding: 14px 18px;
        font-weight: 600;
        font-size: 0.9rem;
        border: none;
        letter-spacing: 0.3px;
    }
    .data-table-wrap tbody td {
        padding: 12px 18px;
        font-size: 0.92rem;
        color: var(--text-secondary);
        border-color: var(--border-light);
        vertical-align: middle;
    }
    .data-table-wrap tbody tr {
        transition: var(--transition);
    }
    .data-table-wrap tbody tr:hover {
        background: rgba(26, 42, 108, 0.03);
    }
    .data-table-wrap .rank-badge {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 28px;
        height: 28px;
        border-radius: 50%;
        font-weight: 700;
        font-size: 0.8rem;
        color: #fff;
    }
    .rank-1 {
        background: #f5a623;
    }
    .rank-2 {
        background: #7a8ba8;
    }
    .rank-3 {
        background: #cd7f32;
    }
    .rank-default {
        background: var(--border-color);
        color: var(--text-muted);
    }
    .trend-up {
        color: #22a67e;
    }
    .trend-down {
        color: #e8491d;
    }
    .trend-eq {
        color: var(--text-muted);
    }

    /* ===== Featured Insight ===== */
    .insight-block {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 40px;
        align-items: center;
        background: var(--bg-card);
        border-radius: var(--radius-lg);
        border: 1px solid var(--border-color);
        box-shadow: var(--shadow-sm);
        overflow: hidden;
        padding: 0;
    }
    .insight-block .insight-image {
        height: 100%;
        min-height: 340px;
        background-size: cover;
        background-position: center;
        position: relative;
    }
    .insight-block .insight-image .overlay-tag {
        position: absolute;
        top: 20px;
        left: 20px;
        background: var(--accent);
        color: var(--text-primary);
        padding: 6px 18px;
        border-radius: 50px;
        font-size: 0.8rem;
        font-weight: 700;
    }
    .insight-block .insight-content {
        padding: 40px 44px 40px 0;
    }
    .insight-block .insight-content h2 {
        font-size: 1.8rem;
        font-weight: 700;
        margin-bottom: 16px;
        color: var(--text-primary);
        letter-spacing: -0.3px;
    }
    .insight-block .insight-content p {
        font-size: 1rem;
        color: var(--text-secondary);
        line-height: 1.7;
        margin-bottom: 20px;
    }
    .insight-block .insight-content .insight-stats {
        display: flex;
        gap: 30px;
        margin-top: 24px;
    }
    .insight-block .insight-content .insight-stats div {
        text-align: center;
    }
    .insight-block .insight-content .insight-stats .num {
        font-size: 1.8rem;
        font-weight: 800;
        color: var(--primary);
        line-height: 1.2;
    }
    .insight-block .insight-content .insight-stats .lbl {
        font-size: 0.85rem;
        color: var(--text-muted);
    }

    /* ===== FAQ ===== */
    .faq-list {
        max-width: 780px;
        margin: 0 auto;
    }
    .faq-item {
        background: var(--bg-card);
        border-radius: var(--radius-sm);
        border: 1px solid var(--border-color);
        margin-bottom: 14px;
        overflow: hidden;
        transition: var(--transition);
    }
    .faq-item:hover {
        border-color: var(--primary-light);
        box-shadow: var(--shadow-sm);
    }
    .faq-question {
        padding: 18px 24px;
        font-weight: 600;
        font-size: 1rem;
        color: var(--text-primary);
        cursor: pointer;
        display: flex;
        justify-content: space-between;
        align-items: center;
        background: transparent;
        border: none;
        width: 100%;
        text-align: left;
        transition: var(--transition);
    }
    .faq-question:hover {
        color: var(--primary);
    }
    .faq-question .icon {
        font-size: 1.2rem;
        color: var(--text-muted);
        transition: var(--transition);
    }
    .faq-item.active .faq-question .icon {
        transform: rotate(180deg);
        color: var(--secondary);
    }
    .faq-answer {
        padding: 0 24px 18px;
        color: var(--text-secondary);
        font-size: 0.95rem;
        line-height: 1.7;
        display: none;
    }
    .faq-item.active .faq-answer {
        display: block;
    }

    /* ===== CTA ===== */
    .cta-section {
        background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
        padding: 70px 0;
        text-align: center;
        position: relative;
        overflow: hidden;
    }
    .cta-section::before {
        content: '';
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.png') center/cover no-repeat;
        opacity: 0.08;
        mix-blend-mode: overlay;
    }
    .cta-section .container {
        position: relative;
        z-index: 2;
    }
    .cta-section h2 {
        font-size: 2.2rem;
        font-weight: 700;
        color: var(--text-white);
        margin-bottom: 16px;
    }
    .cta-section p {
        font-size: 1.1rem;
        color: rgba(255, 255, 255, 0.8);
        max-width: 560px;
        margin: 0 auto 30px;
        line-height: 1.6;
    }
    .btn-cta-lg {
        background: var(--secondary);
        color: #fff;
        border: none;
        padding: 14px 36px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1.05rem;
        transition: var(--transition);
        box-shadow: 0 6px 24px rgba(232, 73, 29, 0.35);
        display: inline-flex;
        align-items: center;
        gap: 10px;
    }
    .btn-cta-lg:hover {
        background: var(--secondary-light);
        transform: translateY(-3px);
        box-shadow: 0 10px 32px rgba(232, 73, 29, 0.45);
        color: #fff;
    }
    .btn-outline-light {
        background: transparent;
        border: 2px solid rgba(255, 255, 255, 0.6);
        color: var(--text-white);
        padding: 12px 30px;
        border-radius: 50px;
        font-weight: 600;
        font-size: 1rem;
        transition: var(--transition);
        margin-left: 14px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    .btn-outline-light:hover {
        background: rgba(255, 255, 255, 0.12);
        border-color: #fff;
        color: #fff;
    }

    /* ===== Footer ===== */
    .site-footer {
        background: var(--bg-dark);
        color: rgba(255, 255, 255, 0.8);
        padding: 60px 0 30px;
    }
    .site-footer .footer-brand {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.4rem;
        font-weight: 800;
        color: #fff;
        margin-bottom: 14px;
    }
    .site-footer .footer-brand .brand-icon {
        background: linear-gradient(135deg, var(--secondary), var(--accent));
        box-shadow: 0 2px 12px rgba(232, 73, 29, 0.30);
    }
    .site-footer .footer-desc {
        font-size: 0.92rem;
        color: rgba(255, 255, 255, 0.6);
        line-height: 1.7;
        max-width: 340px;
    }
    .site-footer .footer-heading {
        font-size: 1rem;
        font-weight: 600;
        color: #fff;
        margin-bottom: 18px;
        letter-spacing: 0.5px;
    }
    .site-footer .footer-links {
        list-style: none;
        padding: 0;
        margin: 0;
    }
    .site-footer .footer-links li {
        margin-bottom: 10px;
    }
    .site-footer .footer-links a {
        color: rgba(255, 255, 255, 0.6);
        font-size: 0.92rem;
        transition: var(--transition);
        display: inline-flex;
        align-items: center;
        gap: 6px;
    }
    .site-footer .footer-links a:hover {
        color: var(--accent-light);
        transform: translateX(4px);
    }
    .site-footer .footer-bottom {
        border-top: 1px solid rgba(255, 255, 255, 0.08);
        padding-top: 24px;
        margin-top: 40px;
        font-size: 0.88rem;
        color: rgba(255, 255, 255, 0.5);
    }
    .site-footer .footer-bottom span:last-child {
        color: rgba(255, 255, 255, 0.4);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .analysis-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        .insight-block {
            grid-template-columns: 1fr;
        }
        .insight-block .insight-image {
            min-height: 260px;
            order: -1;
        }
        .insight-block .insight-content {
            padding: 30px 32px;
        }
        .page-banner h1 {
            font-size: 2.2rem;
        }
    }

    @media (max-width: 768px) {
        :root {
            --header-height: 64px;
        }
        .navbar-brand {
            font-size: 1.1rem;
        }
        .brand-icon {
            width: 32px;
            height: 32px;
            font-size: 1rem;
        }
        .search-form .form-control {
            width: 100%;
        }
        .navbar-nav {
            padding: 12px 0;
        }
        .nav-item .nav-link {
            padding: 10px 16px;
        }
        .page-banner {
            padding: 60px 0 50px;
        }
        .page-banner h1 {
            font-size: 1.8rem;
        }
        .page-banner p {
            font-size: 1rem;
        }
        .section-padding {
            padding: 50px 0;
        }
        .section-title {
            font-size: 1.6rem;
        }
        .stats-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }
        .stat-card .stat-number {
            font-size: 2rem;
        }
        .analysis-grid {
            grid-template-columns: 1fr;
            gap: 20px;
        }
        .insight-block .insight-content {
            padding: 24px 20px;
        }
        .insight-block .insight-content h2 {
            font-size: 1.4rem;
        }
        .insight-block .insight-content .insight-stats {
            gap: 20px;
            flex-wrap: wrap;
        }
        .cta-section h2 {
            font-size: 1.6rem;
        }
        .btn-outline-light {
            margin-left: 0;
            margin-top: 12px;
        }
        .data-table-wrap {
            overflow-x: auto;
        }
        .site-footer {
            padding: 40px 0 20px;
        }
        .site-footer .footer-desc {
            max-width: 100%;
        }
    }

    @media (max-width: 520px) {
        .page-banner h1 {
            font-size: 1.5rem;
        }
        .stats-grid {
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }
        .stat-card {
            padding: 18px 12px;
        }
        .stat-card .stat-number {
            font-size: 1.6rem;
        }
        .section-title {
            font-size: 1.4rem;
        }
        .cta-section h2 {
            font-size: 1.3rem;
        }
        .btn-cta-lg {
            padding: 12px 24px;
            font-size: 0.95rem;
        }
        .insight-block .insight-content .insight-stats .num {
            font-size: 1.4rem;
        }
    }