/* roulang page: index */
/* ===== Design Variables ===== */
        :root {
            --primary: #0f1f3d;
            --primary-light: #1a3058;
            --primary-dark: #0a1429;
            --accent: #e85d3a;
            --accent-hover: #d44c2a;
            --accent-light: #fdf0ec;
            --gold: #f0b429;
            --gold-light: #fef7e6;
            --bg-light: #f8f9fc;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #3d3d5c;
            --text-muted: #7a7a9a;
            --text-white: #f0f2f5;
            --border-color: #e2e5ef;
            --border-radius: 12px;
            --border-radius-sm: 8px;
            --border-radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(15, 31, 61, 0.06);
            --shadow-md: 0 6px 24px rgba(15, 31, 61, 0.10);
            --shadow-lg: 0 16px 48px rgba(15, 31, 61, 0.14);
            --shadow-glow: 0 0 30px rgba(232, 93, 58, 0.20);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            --container-max: 1200px;
        }

        /* ===== Reset & Base ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
            -webkit-text-size-adjust: 100%;
        }
        body {
            font-family: var(--font-sans);
            font-size: 1rem;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            line-height: 1.3;
            font-weight: 700;
        }

        /* ===== Container ===== */
        .container-custom {
            max-width: var(--container-max);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding: 0 16px;
            }
        }

        /* ===== Typography ===== */
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
        }
        .section-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            max-width: 600px;
            margin: 0 auto 2.5rem;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 2rem;
            }
        }

        /* ===== Buttons ===== */
        .btn-custom {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 12px 32px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            border: none;
            cursor: pointer;
            transition: all var(--transition);
            text-decoration: none;
        }
        .btn-primary-custom {
            background: var(--accent);
            color: #fff;
            box-shadow: 0 4px 16px rgba(232, 93, 58, 0.30);
        }
        .btn-primary-custom:hover {
            background: var(--accent-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(232, 93, 58, 0.40);
        }
        .btn-outline-custom {
            background: transparent;
            color: var(--text-white);
            border: 2px solid rgba(255, 255, 255, 0.50);
        }
        .btn-outline-custom:hover {
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            border-color: #fff;
            transform: translateY(-2px);
        }
        .btn-secondary-custom {
            background: var(--primary);
            color: #fff;
        }
        .btn-secondary-custom:hover {
            background: var(--primary-light);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }
        .btn-sm-custom {
            padding: 8px 20px;
            font-size: 0.875rem;
        }

        /* ===== Badge / Tag ===== */
        .badge-custom {
            display: inline-block;
            padding: 4px 14px;
            border-radius: 50px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.3px;
            background: var(--accent-light);
            color: var(--accent);
        }
        .badge-gold {
            background: var(--gold-light);
            color: #b8860b;
        }
        .badge-primary-light {
            background: rgba(15, 31, 61, 0.08);
            color: var(--primary);
        }

        /* ===== Card ===== */
        .card-custom {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .card-custom:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .card-custom .card-body {
            padding: 28px 24px;
        }
        .card-custom .card-img-top {
            width: 100%;
            aspect-ratio: 16 / 10;
            object-fit: cover;
        }

        /* ===== Section Spacing ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
        }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: rgba(15, 31, 61, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: background var(--transition);
        }
        .site-header .navbar {
            padding: 0 24px;
            min-height: 68px;
        }
        .site-header .navbar-brand {
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.3px;
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
        }
        .site-header .navbar-brand .brand-icon {
            width: 36px;
            height: 36px;
            background: var(--accent);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            color: #fff;
            font-weight: 700;
        }
        .site-header .navbar-brand:hover {
            color: #fff;
        }
        .site-header .nav-link {
            color: rgba(255, 255, 255, 0.78) !important;
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 18px !important;
            border-radius: 8px;
            transition: all var(--transition);
        }
        .site-header .nav-link:hover,
        .site-header .nav-link.active {
            color: #fff !important;
            background: rgba(255, 255, 255, 0.10);
        }
        .site-header .nav-link.active {
            color: var(--accent) !important;
            background: rgba(232, 93, 58, 0.15);
        }
        .site-header .navbar-toggler {
            border: none;
            padding: 6px 10px;
            color: rgba(255, 255, 255, 0.7);
            font-size: 1.4rem;
        }
        .site-header .navbar-toggler:focus {
            box-shadow: none;
        }
        .site-header .nav-cta {
            background: var(--accent);
            color: #fff !important;
            border-radius: 50px;
            padding: 8px 22px !important;
            font-weight: 600;
        }
        .site-header .nav-cta:hover {
            background: var(--accent-hover) !important;
            color: #fff !important;
            transform: translateY(-1px);
        }
        @media (max-width: 991px) {
            .site-header .navbar-collapse {
                background: var(--primary-dark);
                border-radius: 16px;
                padding: 16px;
                margin-top: 12px;
                border: 1px solid rgba(255, 255, 255, 0.06);
            }
            .site-header .nav-link {
                padding: 10px 16px !important;
            }
        }

        /* ===== Hero ===== */
        .hero-section {
            position: relative;
            min-height: 92vh;
            display: flex;
            align-items: center;
            padding: 120px 0 80px;
            background: var(--primary-dark);
            overflow: hidden;
        }
        .hero-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            opacity: 0.25;
            filter: saturate(0.5) brightness(0.6);
        }
        .hero-section::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 31, 61, 0.88) 0%, rgba(15, 31, 61, 0.60) 60%, rgba(232, 93, 58, 0.15) 100%);
            z-index: 1;
        }
        .hero-section .container-custom {
            position: relative;
            z-index: 2;
        }
        .hero-section .hero-badge {
            display: inline-block;
            background: rgba(232, 93, 58, 0.20);
            border: 1px solid rgba(232, 93, 58, 0.30);
            color: var(--accent);
            padding: 6px 20px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            backdrop-filter: blur(4px);
        }
        .hero-section .hero-title {
            font-size: 3.4rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.15;
            letter-spacing: -0.03em;
            max-width: 780px;
        }
        .hero-section .hero-title .highlight {
            background: linear-gradient(135deg, var(--accent), var(--gold));
            -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, 0.75);
            max-width: 620px;
            margin: 24px 0 36px;
            line-height: 1.7;
        }
        .hero-section .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 16px;
            align-items: center;
        }
        .hero-section .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 40px;
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid rgba(255, 255, 255, 0.10);
        }
        .hero-section .hero-stat-item {
            text-align: left;
        }
        .hero-section .hero-stat-item .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .hero-section .hero-stat-item .stat-number .accent {
            color: var(--accent);
        }
        .hero-section .hero-stat-item .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.55);
            margin-top: 2px;
        }
        @media (max-width: 768px) {
            .hero-section {
                min-height: 80vh;
                padding: 100px 0 60px;
            }
            .hero-section .hero-title {
                font-size: 2.2rem;
            }
            .hero-section .hero-desc {
                font-size: 1rem;
                margin: 16px 0 28px;
            }
            .hero-section .hero-stats {
                gap: 24px;
                margin-top: 36px;
                padding-top: 28px;
            }
            .hero-section .hero-stat-item .stat-number {
                font-size: 1.5rem;
            }
        }
        @media (max-width: 520px) {
            .hero-section .hero-title {
                font-size: 1.75rem;
            }
            .hero-section .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }
            .hero-section .hero-actions .btn-custom {
                justify-content: center;
            }
        }

        /* ===== Features / 平台特色 ===== */
        .features-section {
            background: var(--bg-light);
        }
        .features-section .feature-card {
            background: var(--bg-card);
            border-radius: var(--border-radius);
            padding: 36px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            height: 100%;
        }
        .features-section .feature-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: transparent;
        }
        .features-section .feature-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: #fff;
            margin-bottom: 20px;
            background: var(--primary);
        }
        .features-section .feature-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .features-section .feature-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 0;
        }

        /* ===== Categories / 赛事分类 ===== */
        .categories-section {
            background: #fff;
        }
        .categories-section .category-card {
            position: relative;
            border-radius: var(--border-radius);
            overflow: hidden;
            height: 280px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            border: none;
            transition: all var(--transition);
        }
        .categories-section .category-card img {
            position: absolute;
            inset: 0;
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .categories-section .category-card:hover img {
            transform: scale(1.08);
        }
        .categories-section .category-card .overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(15, 31, 61, 0.75) 0%, rgba(15, 31, 61, 0.20) 100%);
            z-index: 1;
            transition: background var(--transition);
        }
        .categories-section .category-card:hover .overlay {
            background: linear-gradient(0deg, rgba(15, 31, 61, 0.85) 0%, rgba(15, 31, 61, 0.30) 100%);
        }
        .categories-section .category-card .cat-content {
            position: relative;
            z-index: 2;
            color: #fff;
            padding: 20px;
        }
        .categories-section .category-card .cat-content h3 {
            color: #fff;
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .categories-section .category-card .cat-content p {
            color: rgba(255, 255, 255, 0.75);
            font-size: 0.9rem;
            margin-bottom: 0;
        }
        @media (max-width: 768px) {
            .categories-section .category-card {
                height: 220px;
            }
            .categories-section .category-card .cat-content h3 {
                font-size: 1.2rem;
            }
        }

        /* ===== Latest News / 最新资讯 ===== */
        .news-section {
            background: var(--bg-light);
        }
        .news-section .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }
        .news-section .news-item {
            background: var(--bg-card);
            border-radius: var(--border-radius-sm);
            padding: 20px 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            display: flex;
            align-items: flex-start;
            gap: 20px;
        }
        .news-section .news-item:hover {
            transform: translateX(6px);
            box-shadow: var(--shadow-md);
            border-color: transparent;
        }
        .news-section .news-item .news-meta {
            flex-shrink: 0;
            min-width: 80px;
            text-align: right;
        }
        .news-section .news-item .news-meta .date {
            font-size: 0.8rem;
            color: var(--text-muted);
            font-weight: 500;
        }
        .news-section .news-item .news-meta .cat-tag {
            display: inline-block;
            font-size: 0.7rem;
            padding: 2px 10px;
            border-radius: 50px;
            background: var(--accent-light);
            color: var(--accent);
            font-weight: 600;
            margin-top: 4px;
        }
        .news-section .news-item .news-body {
            flex: 1;
            min-width: 0;
        }
        .news-section .news-item .news-body h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 4px;
            transition: color var(--transition);
        }
        .news-section .news-item:hover .news-body h4 {
            color: var(--accent);
        }
        .news-section .news-item .news-body p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-section .news-empty {
            text-align: center;
            padding: 48px 20px;
            color: var(--text-muted);
            background: var(--bg-card);
            border-radius: var(--border-radius);
            border: 1px dashed var(--border-color);
        }
        @media (max-width: 768px) {
            .news-section .news-item {
                flex-direction: column;
                gap: 8px;
                padding: 16px 18px;
            }
            .news-section .news-item .news-meta {
                text-align: left;
                min-width: auto;
                display: flex;
                align-items: center;
                gap: 12px;
            }
            .news-section .news-item .news-body h4 {
                font-size: 0.95rem;
            }
        }

        /* ===== Stats / 数据统计 ===== */
        .stats-section {
            background: var(--primary);
            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;
        }
        .stats-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .stats-section .stat-block {
            text-align: center;
            padding: 20px;
        }
        .stats-section .stat-block .stat-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: #fff;
            line-height: 1.2;
        }
        .stats-section .stat-block .stat-number .gold {
            color: var(--gold);
        }
        .stats-section .stat-block .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.60);
            margin-top: 4px;
        }
        @media (max-width: 768px) {
            .stats-section .stat-block .stat-number {
                font-size: 2rem;
            }
        }

        /* ===== Testimonials / 用户评价 ===== */
        .testimonials-section {
            background: #fff;
        }
        .testimonials-section .testimonial-card {
            background: var(--bg-light);
            border-radius: var(--border-radius);
            padding: 32px 28px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
            height: 100%;
        }
        .testimonials-section .testimonial-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-4px);
        }
        .testimonials-section .testimonial-card .stars {
            color: var(--gold);
            font-size: 0.95rem;
            margin-bottom: 12px;
        }
        .testimonials-section .testimonial-card blockquote {
            font-size: 0.95rem;
            color: var(--text-body);
            font-style: italic;
            margin-bottom: 16px;
            line-height: 1.7;
        }
        .testimonials-section .testimonial-card .author {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .testimonials-section .testimonial-card .author .avatar {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1rem;
            flex-shrink: 0;
        }
        .testimonials-section .testimonial-card .author .info strong {
            display: block;
            font-size: 0.9rem;
            color: var(--text-dark);
        }
        .testimonials-section .testimonial-card .author .info span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-light);
        }
        .faq-section .accordion-item {
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-sm) !important;
            overflow: hidden;
            margin-bottom: 12px;
            background: var(--bg-card);
        }
        .faq-section .accordion-button {
            font-weight: 600;
            font-size: 1rem;
            color: var(--text-dark);
            background: var(--bg-card);
            padding: 18px 24px;
            box-shadow: none;
            border: none;
        }
        .faq-section .accordion-button:not(.collapsed) {
            color: var(--accent);
            background: var(--accent-light);
            box-shadow: none;
        }
        .faq-section .accordion-button:focus {
            box-shadow: none;
            border-color: transparent;
        }
        .faq-section .accordion-body {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-body);
            line-height: 1.7;
        }
        .faq-section .accordion-button::after {
            background-size: 16px;
            transition: transform var(--transition);
        }

        /* ===== CTA ===== */
        .cta-section {
            background: var(--primary);
            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: 0.07;
        }
        .cta-section .container-custom {
            position: relative;
            z-index: 1;
        }
        .cta-section h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 800;
        }
        .cta-section p {
            color: rgba(255, 255, 255, 0.70);
            font-size: 1.1rem;
            max-width: 600px;
            margin: 12px auto 28px;
        }
        @media (max-width: 768px) {
            .cta-section h2 {
                font-size: 1.6rem;
            }
            .cta-section p {
                font-size: 0.95rem;
            }
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.65);
            padding: 48px 0 32px;
        }
        .site-footer .footer-brand {
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .site-footer .footer-brand .brand-icon {
            width: 32px;
            height: 32px;
            background: var(--accent);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
            font-size: 0.9rem;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            max-width: 340px;
            line-height: 1.7;
        }
        .site-footer .footer-links h5 {
            color: #fff;
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .site-footer .footer-links a {
            display: block;
            color: rgba(255, 255, 255, 0.60);
            font-size: 0.9rem;
            padding: 4px 0;
            transition: color var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: var(--accent);
        }
        .site-footer .footer-bottom {
            margin-top: 36px;
            padding-top: 20px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 0.85rem;
            text-align: center;
            color: rgba(255, 255, 255, 0.40);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.50);
        }
        .site-footer .footer-bottom a:hover {
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 32px 0 24px;
            }
            .site-footer .footer-links {
                margin-top: 24px;
            }
        }

        /* ===== Responsive Utilities ===== */
        @media (max-width: 576px) {
            .container-custom {
                padding: 0 12px;
            }
            .section-padding {
                padding: 36px 0;
            }
            .btn-custom {
                padding: 10px 24px;
                font-size: 0.9rem;
            }
        }

        /* ===== Focus & Accessibility ===== */
        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 3px solid var(--accent);
            outline-offset: 2px;
        }

        /* ===== Scrollbar ===== */
        ::-webkit-scrollbar {
            width: 8px;
        }
        ::-webkit-scrollbar-track {
            background: var(--bg-light);
        }
        ::-webkit-scrollbar-thumb {
            background: var(--border-color);
            border-radius: 10px;
        }
        ::-webkit-scrollbar-thumb:hover {
            background: var(--text-muted);
        }

        /* ===== Navbar brand responsive ===== */
        @media (max-width: 400px) {
            .site-header .navbar-brand {
                font-size: 1.1rem;
            }
            .site-header .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.9rem;
            }
        }

/* roulang page: article */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-dark: #0f1a4a;
            --primary-light: #2a3f8a;
            --secondary: #e94560;
            --secondary-light: #ff6b7a;
            --accent: #f5c518;
            --accent-light: #ffe082;
            --bg-body: #f8f9fc;
            --bg-card: #ffffff;
            --bg-dark: #0f1a2e;
            --bg-muted: #eef0f6;
            --text-dark: #1a1a2e;
            --text-body: #2d2d44;
            --text-muted: #6b7280;
            --text-light: #9ca3af;
            --text-white: #f0f0f0;
            --border: #e2e6ef;
            --border-light: #f0f2f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --shadow-sm: 0 2px 8px rgba(26,42,108,0.06);
            --shadow-md: 0 8px 24px rgba(26,42,108,0.10);
            --shadow-lg: 0 16px 40px rgba(26,42,108,0.14);
            --shadow-xl: 0 24px 60px rgba(26,42,108,0.18);
            --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
            --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
        }

        /* ===== 基础 Reset / Base ===== */
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
        body {
            font-family: var(--font-sans);
            background: var(--bg-body);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 1rem;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--secondary); }
        button, input, textarea { font-family: inherit; }
        ul { list-style: none; }
        h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.2; color: var(--text-dark); }
        .container-custom { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }

        /* ===== 导航 ===== */
        .site-header {
            background: var(--bg-card);
            border-bottom: 1px solid var(--border);
            position: sticky; top: 0; z-index: 1050;
            box-shadow: var(--shadow-sm);
            backdrop-filter: blur(10px);
            background: rgba(255,255,255,0.96);
        }
        .site-header .navbar { padding: 10px 0; }
        .site-header .navbar-brand {
            font-size: 1.5rem; font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: -0.02em;
            display: flex; align-items: center; gap: 8px;
        }
        .site-header .navbar-brand .brand-icon {
            display: inline-flex; align-items: center; justify-content: center;
            width: 36px; height: 36px;
            background: var(--primary); color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem; font-weight: 700;
        }
        .site-header .nav-link {
            font-size: 0.95rem; font-weight: 500;
            color: var(--text-body) !important;
            padding: 6px 16px !important;
            border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .site-header .nav-link:hover,
        .site-header .nav-link:focus { background: var(--bg-muted); color: var(--primary) !important; }
        .site-header .nav-link.active { background: var(--primary); color: #fff !important; }
        .site-header .nav-cta {
            background: var(--secondary); color: #fff !important;
            border-radius: var(--radius-md);
            padding: 8px 20px !important;
            font-weight: 600;
        }
        .site-header .nav-cta:hover { background: var(--secondary-light); transform: translateY(-1px); }
        .navbar-toggler { border: none; padding: 0; font-size: 1.4rem; color: var(--text-dark); }
        .navbar-toggler:focus { box-shadow: none; }

        /* ===== 文章详情页 ===== */
        .article-hero {
            position: relative;
            min-height: 320px;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);
            overflow: hidden;
            padding: 60px 0 50px;
        }
        .article-hero::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            opacity: 0.15;
            mix-blend-mode: overlay;
        }
        .article-hero .hero-content { position: relative; z-index: 2; max-width: 800px; padding: 0 20px; }
        .article-hero .hero-meta {
            display: flex; align-items: center; justify-content: center; gap: 16px;
            color: var(--accent-light); font-size: 0.9rem; margin-bottom: 14px;
            flex-wrap: wrap;
        }
        .article-hero .hero-meta .badge-category {
            background: var(--accent); color: var(--text-dark);
            padding: 4px 16px; border-radius: 20px;
            font-weight: 600; font-size: 0.8rem;
        }
        .article-hero h1 {
            font-size: 2.6rem; font-weight: 800;
            color: #fff; margin-bottom: 16px;
            text-shadow: 0 2px 12px rgba(0,0,0,0.3);
            letter-spacing: -0.01em;
        }
        .article-hero .hero-date {
            color: rgba(255,255,255,0.75);
            font-size: 0.95rem;
        }
        .article-hero .hero-date i { margin-right: 6px; }

        .article-main { padding: 50px 0 70px; }
        .article-main .article-content-wrap {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
            padding: 40px 48px;
        }
        .article-main .article-content {
            font-size: 1.05rem;
            line-height: 1.85;
            color: var(--text-body);
        }
        .article-main .article-content p { margin-bottom: 1.4rem; }
        .article-main .article-content h2,
        .article-main .article-content h3 {
            margin-top: 2rem; margin-bottom: 0.8rem;
            color: var(--text-dark);
        }
        .article-main .article-content h2 { font-size: 1.6rem; }
        .article-main .article-content h3 { font-size: 1.3rem; }
        .article-main .article-content ul,
        .article-main .article-content ol { margin-bottom: 1.4rem; padding-left: 1.5rem; }
        .article-main .article-content li { margin-bottom: 0.4rem; }
        .article-main .article-content img { border-radius: var(--radius-md); margin: 1.5rem 0; }
        .article-main .article-content blockquote {
            border-left: 4px solid var(--primary);
            background: var(--bg-muted);
            padding: 16px 24px;
            margin: 1.5rem 0;
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-muted);
            font-style: italic;
        }
        .article-main .article-content a { color: var(--secondary); font-weight: 500; }
        .article-main .article-content a:hover { text-decoration: underline; }

        .article-not-found {
            text-align: center; padding: 80px 20px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-md);
        }
        .article-not-found i { font-size: 3rem; color: var(--text-light); margin-bottom: 20px; }
        .article-not-found h2 { font-size: 1.6rem; color: var(--text-dark); margin-bottom: 12px; }
        .article-not-found p { color: var(--text-muted); margin-bottom: 24px; }
        .article-not-found .btn-back { padding: 10px 32px; border-radius: var(--radius-md); }

        /* ===== 相关推荐模块 ===== */
        .related-section { padding: 60px 0; background: var(--bg-muted); }
        .related-section .section-title { text-align: center; margin-bottom: 40px; }
        .related-section .section-title h2 { font-size: 1.8rem; font-weight: 700; color: var(--text-dark); }
        .related-section .section-title p { color: var(--text-muted); font-size: 1.05rem; }
        .related-grid { display: grid; gap: 24px; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border-light);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
        .related-card h5 { font-size: 1.05rem; margin-bottom: 8px; }
        .related-card h5 a { color: var(--text-dark); }
        .related-card h5 a:hover { color: var(--secondary); }
        .related-card .card-date { font-size: 0.85rem; color: var(--text-light); }

        /* ===== CTA 区块 ===== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-dark), var(--primary-light));
            padding: 60px 0;
            text-align: center;
            position: relative;
        }
        .cta-section::before {
            content: '';
            position: absolute; inset: 0;
            background: url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            opacity: 0.08;
            mix-blend-mode: overlay;
        }
        .cta-section .cta-content { position: relative; z-index: 2; }
        .cta-section h2 { color: #fff; font-size: 2rem; font-weight: 700; margin-bottom: 12px; }
        .cta-section p { color: rgba(255,255,255,0.85); font-size: 1.1rem; margin-bottom: 28px; max-width: 600px; margin-left: auto; margin-right: auto; }
        .cta-section .btn-cta {
            background: var(--accent); color: var(--text-dark);
            padding: 14px 40px; border-radius: 50px;
            font-weight: 700; font-size: 1.05rem;
            border: none; transition: var(--transition);
            display: inline-flex; align-items: center; gap: 10px;
        }
        .cta-section .btn-cta:hover { background: var(--accent-light); transform: translateY(-2px); box-shadow: var(--shadow-lg); }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: var(--text-white);
            padding: 56px 0 24px;
        }
        .site-footer .footer-brand {
            font-size: 1.5rem; font-weight: 800;
            color: #fff;
            display: flex; align-items: center; gap: 8px;
            margin-bottom: 16px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex; align-items: center; justify-content: center;
            width: 36px; height: 36px;
            background: var(--secondary); color: #fff;
            border-radius: var(--radius-sm);
            font-size: 1.1rem;
        }
        .site-footer .footer-desc { color: var(--text-light); font-size: 0.95rem; max-width: 360px; line-height: 1.7; }
        .site-footer .footer-links h5 {
            color: #fff; font-size: 1rem; font-weight: 600;
            margin-bottom: 16px; letter-spacing: 0.02em;
        }
        .site-footer .footer-links a {
            display: block; color: var(--text-light); font-size: 0.92rem;
            padding: 4px 0; transition: var(--transition);
        }
        .site-footer .footer-links a:hover { color: var(--accent); padding-left: 6px; }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.08);
            margin-top: 32px; padding-top: 20px;
            text-align: center; color: var(--text-light); font-size: 0.88rem;
        }
        .site-footer .footer-bottom a { color: var(--accent); }
        .site-footer .footer-bottom a:hover { text-decoration: underline; }

        /* ===== 响应式 ===== */
        @media (max-width: 992px) {
            .site-header .navbar-collapse { background: var(--bg-card); padding: 12px 16px; border-radius: var(--radius-md); margin-top: 10px; box-shadow: var(--shadow-md); }
            .site-header .nav-link { padding: 8px 12px !important; }
            .article-hero h1 { font-size: 2rem; }
            .article-main .article-content-wrap { padding: 28px 24px; }
        }
        @media (max-width: 768px) {
            .article-hero { min-height: 240px; padding: 40px 0; }
            .article-hero h1 { font-size: 1.6rem; }
            .article-hero .hero-meta { font-size: 0.8rem; gap: 10px; }
            .article-main .article-content-wrap { padding: 20px 16px; border-radius: var(--radius-md); }
            .article-main .article-content { font-size: 1rem; }
            .related-grid { grid-template-columns: 1fr; }
            .cta-section h2 { font-size: 1.5rem; }
            .cta-section p { font-size: 0.95rem; }
            .site-footer .footer-links { margin-top: 24px; }
        }
        @media (max-width: 520px) {
            .article-hero h1 { font-size: 1.3rem; }
            .article-hero .hero-meta { flex-direction: column; gap: 6px; }
            .article-main { padding: 30px 0 50px; }
            .article-main .article-content-wrap { padding: 16px 12px; }
            .cta-section .btn-cta { padding: 12px 28px; font-size: 0.95rem; }
        }

        /* ===== 工具类 ===== */
        .text-accent { color: var(--accent); }
        .bg-accent { background: var(--accent); }
        .rounded-custom { border-radius: var(--radius-md); }
        .shadow-custom { box-shadow: var(--shadow-md); }

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --accent: #e63946;
            --accent-light: #ff5a67;
            --accent-dark: #c62835;
            --gold: #f4a261;
            --gold-light: #ffcd94;
            --bg-light: #f8f9fc;
            --bg-dark: #0f1a2e;
            --bg-card: #ffffff;
            --text-dark: #1a1a2e;
            --text-body: #2d3748;
            --text-muted: #6b7a8f;
            --text-light: #f0f4ff;
            --border-color: #e2e8f0;
            --border-radius-sm: 8px;
            --border-radius-md: 14px;
            --border-radius-lg: 20px;
            --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-hover: 0 12px 40px rgba(26, 42, 108, 0.16);
            --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
            --font-sans: 'Segoe UI', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ===== 基础 Reset ===== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: var(--font-sans);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-body);
            background: var(--bg-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--primary-light);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--accent);
        }
        ul,
        ol {
            padding-left: 1.25rem;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--text-dark);
            font-weight: 700;
            line-height: 1.3;
            margin-top: 0;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }

        /* ===== 容器 ===== */
        .container-custom {
            max-width: var(--max-width);
            margin-left: auto;
            margin-right: auto;
            padding-left: 20px;
            padding-right: 20px;
        }
        @media (max-width: 768px) {
            .container-custom {
                padding-left: 16px;
                padding-right: 16px;
            }
        }

        /* ===== 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            width: 100%;
            z-index: 1050;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
            height: var(--header-height);
            display: flex;
            align-items: center;
        }
        .site-header .navbar {
            padding: 0;
            width: 100%;
        }
        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            font-size: 1.4rem;
            font-weight: 800;
            color: var(--primary) !important;
            letter-spacing: -0.3px;
            gap: 8px;
            padding: 0;
        }
        .site-header .navbar-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1.1rem;
            font-weight: 700;
            flex-shrink: 0;
        }
        .site-header .nav-link {
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-body) !important;
            padding: 8px 16px !important;
            border-radius: var(--border-radius-sm);
            transition: var(--transition);
            position: relative;
        }
        .site-header .nav-link:hover,
        .site-header .nav-link:focus {
            color: var(--primary) !important;
            background: rgba(26, 42, 108, 0.06);
        }
        .site-header .nav-link.active {
            color: var(--primary) !important;
            background: rgba(26, 42, 108, 0.08);
            font-weight: 600;
        }
        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--accent);
            border-radius: 3px;
        }
        .site-header .nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-light)) !important;
            color: #fff !important;
            border-radius: 30px;
            padding: 8px 22px !important;
            font-weight: 600;
            box-shadow: 0 4px 14px rgba(230, 57, 70, 0.3);
        }
        .site-header .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(230, 57, 70, 0.4);
            background: linear-gradient(135deg, var(--accent-dark), var(--accent)) !important;
            color: #fff !important;
        }
        .navbar-toggler {
            border: none;
            background: transparent;
            font-size: 1.5rem;
            color: var(--text-dark);
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
            outline: 2px solid var(--primary-light);
            outline-offset: 2px;
        }
        @media (max-width: 991.98px) {
            .site-header {
                height: auto;
                min-height: var(--header-height);
            }
            .site-header .navbar-collapse {
                background: rgba(255, 255, 255, 0.98);
                backdrop-filter: blur(12px);
                padding: 12px 0;
                border-radius: 0 0 var(--border-radius-md) var(--border-radius-md);
                box-shadow: var(--shadow-md);
            }
            .site-header .nav-link.active::after {
                display: none;
            }
            .site-header .nav-cta {
                margin-top: 8px;
                text-align: center;
            }
        }
        @media (max-width: 576px) {
            .site-header .navbar-brand {
                font-size: 1.15rem;
            }
            .site-header .navbar-brand .brand-icon {
                width: 30px;
                height: 30px;
                font-size: 0.95rem;
            }
        }

        /* ===== Hero / 分类首屏 ===== */
        .category-hero {
            position: relative;
            min-height: 420px;
            display: flex;
            align-items: center;
            background: linear-gradient(145deg, var(--bg-dark) 0%, #1a2a4a 100%);
            overflow: hidden;
            padding: 60px 0 80px;
        }
        .category-hero-bg {
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center 30%;
            opacity: 0.20;
            z-index: 0;
        }
        .category-hero .container-custom {
            position: relative;
            z-index: 1;
        }
        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(244, 162, 97, 0.18);
            border: 1px solid rgba(244, 162, 97, 0.3);
            color: var(--gold-light);
            font-size: 0.85rem;
            font-weight: 500;
            padding: 6px 18px;
            border-radius: 30px;
            margin-bottom: 20px;
            letter-spacing: 0.3px;
        }
        .category-hero h1 {
            font-size: 3rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }
        .category-hero h1 .highlight {
            background: linear-gradient(135deg, var(--gold), #ff8a5c);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .category-hero .hero-sub {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 640px;
            line-height: 1.7;
            margin-bottom: 28px;
        }
        .category-hero .hero-stats {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            margin-top: 12px;
        }
        .category-hero .hero-stats .stat-item {
            text-align: left;
        }
        .category-hero .hero-stats .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }
        .category-hero .hero-stats .stat-number .num-accent {
            color: var(--gold);
        }
        .category-hero .hero-stats .stat-label {
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            margin-top: 2px;
        }
        .category-hero .hero-cta-group {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 12px;
        }
        .category-hero .btn-hero-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            font-weight: 600;
            padding: 14px 34px;
            border-radius: 40px;
            border: none;
            font-size: 1rem;
            box-shadow: 0 6px 24px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
        }
        .category-hero .btn-hero-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 36px rgba(230, 57, 70, 0.45);
            color: #fff;
        }
        .category-hero .btn-hero-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-weight: 500;
            padding: 14px 34px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 1rem;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .category-hero .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            border-color: rgba(255, 255, 255, 0.4);
            color: #fff;
        }
        @media (max-width: 768px) {
            .category-hero {
                min-height: 360px;
                padding: 48px 0 60px;
            }
            .category-hero h1 {
                font-size: 2rem;
            }
            .category-hero .hero-sub {
                font-size: 1rem;
            }
            .category-hero .hero-stats {
                gap: 20px 28px;
            }
            .category-hero .hero-stats .stat-number {
                font-size: 1.6rem;
            }
            .category-hero .btn-hero-primary,
            .category-hero .btn-hero-secondary {
                padding: 12px 26px;
                font-size: 0.95rem;
            }
        }
        @media (max-width: 480px) {
            .category-hero h1 {
                font-size: 1.7rem;
            }
            .category-hero .hero-stats {
                flex-direction: column;
                gap: 12px;
            }
        }

        /* ===== 板块通用 ===== */
        .section-padding {
            padding: 80px 0;
        }
        .section-padding-sm {
            padding: 56px 0;
        }
        .section-title {
            font-size: 2.1rem;
            font-weight: 800;
            color: var(--text-dark);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .section-subtitle {
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 620px;
            margin: 0 auto 40px;
            line-height: 1.7;
        }
        .section-subtitle.text-center {
            text-align: center;
        }
        .bg-white-block {
            background: #fff;
        }
        .bg-light-block {
            background: var(--bg-light);
        }
        .bg-dark-block {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.85);
        }
        .bg-dark-block .section-title {
            color: #fff;
        }
        .bg-dark-block .section-subtitle {
            color: rgba(255, 255, 255, 0.7);
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
            .section-padding-sm {
                padding: 36px 0;
            }
            .section-title {
                font-size: 1.6rem;
            }
            .section-subtitle {
                font-size: 0.95rem;
                margin-bottom: 28px;
            }
        }

        /* ===== 卡片系统 ===== */
        .card-modern {
            background: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            overflow: hidden;
            height: 100%;
        }
        .card-modern:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .card-modern .card-img-top {
            width: 100%;
            height: 200px;
            object-fit: cover;
            border-radius: var(--border-radius-md) var(--border-radius-md) 0 0;
        }
        .card-modern .card-body {
            padding: 24px 22px 26px;
        }
        .card-modern .card-badge {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: 30px;
            background: rgba(26, 42, 108, 0.08);
            color: var(--primary);
            margin-bottom: 12px;
            text-transform: uppercase;
            letter-spacing: 0.4px;
        }
        .card-modern .card-badge.accent {
            background: rgba(230, 57, 70, 0.1);
            color: var(--accent);
        }
        .card-modern .card-badge.gold {
            background: rgba(244, 162, 97, 0.15);
            color: #b8743a;
        }
        .card-modern .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 10px;
            line-height: 1.4;
        }
        .card-modern .card-text {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
            margin-bottom: 16px;
        }
        .card-modern .card-footer-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-light);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .card-modern .card-footer-link:hover {
            color: var(--accent);
            gap: 10px;
        }
        @media (max-width: 768px) {
            .card-modern .card-img-top {
                height: 160px;
            }
            .card-modern .card-body {
                padding: 18px 16px 20px;
            }
            .card-modern .card-title {
                font-size: 1.05rem;
            }
        }

        /* ===== 特色 / 卖点区块 ===== */
        .feature-icon-wrap {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 64px;
            height: 64px;
            border-radius: 16px;
            background: rgba(26, 42, 108, 0.08);
            color: var(--primary);
            font-size: 1.6rem;
            transition: var(--transition);
            margin-bottom: 16px;
        }
        .card-modern:hover .feature-icon-wrap {
            background: var(--primary);
            color: #fff;
            transform: scale(1.05);
        }
        .feature-icon-wrap.accent {
            background: rgba(230, 57, 70, 0.1);
            color: var(--accent);
        }
        .card-modern:hover .feature-icon-wrap.accent {
            background: var(--accent);
            color: #fff;
        }
        .feature-icon-wrap.gold {
            background: rgba(244, 162, 97, 0.15);
            color: #b8743a;
        }
        .card-modern:hover .feature-icon-wrap.gold {
            background: var(--gold);
            color: #fff;
        }

        /* ===== 流程步骤 ===== */
        .step-item {
            display: flex;
            gap: 20px;
            margin-bottom: 32px;
            align-items: flex-start;
        }
        .step-number {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.1rem;
            font-weight: 700;
            box-shadow: 0 4px 16px rgba(26, 42, 108, 0.2);
        }
        .step-number.accent {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
        }
        .step-number.gold {
            background: linear-gradient(135deg, var(--gold), #ff8a5c);
        }
        .step-content h4 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-dark);
        }
        .step-content p {
            font-size: 0.95rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }
        @media (max-width: 576px) {
            .step-item {
                gap: 14px;
            }
            .step-number {
                width: 40px;
                height: 40px;
                font-size: 0.95rem;
            }
            .step-content h4 {
                font-size: 1rem;
            }
        }

        /* ===== FAQ ===== */
        .faq-item {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-md);
            padding: 20px 24px;
            margin-bottom: 14px;
            transition: var(--transition);
            cursor: pointer;
        }
        .faq-item:hover {
            border-color: var(--primary-light);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-question {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            margin-bottom: 0;
        }
        .faq-item .faq-question i {
            color: var(--primary-light);
            font-size: 0.9rem;
            transition: var(--transition);
            flex-shrink: 0;
        }
        .faq-item .faq-answer {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-top: 14px;
            padding-top: 14px;
            border-top: 1px solid var(--border-color);
            display: none;
        }
        .faq-item.active .faq-answer {
            display: block;
        }
        .faq-item.active .faq-question i {
            transform: rotate(180deg);
            color: var(--accent);
        }
        @media (max-width: 768px) {
            .faq-item {
                padding: 16px 18px;
            }
            .faq-item .faq-question {
                font-size: 0.95rem;
            }
        }

        /* ===== CTA 区块 ===== */
        .cta-block {
            background: linear-gradient(145deg, var(--bg-dark), #1a2a4a);
            border-radius: var(--border-radius-lg);
            padding: 60px 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-block::before {
            content: '';
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            opacity: 0.08;
            z-index: 0;
        }
        .cta-block .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-block h2 {
            font-size: 2rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .cta-block p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.75);
            max-width: 560px;
            margin: 0 auto 28px;
        }
        .cta-block .btn-cta-primary {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            font-weight: 700;
            padding: 16px 42px;
            border-radius: 40px;
            border: none;
            font-size: 1.05rem;
            box-shadow: 0 6px 28px rgba(230, 57, 70, 0.35);
            transition: var(--transition);
        }
        .cta-block .btn-cta-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(230, 57, 70, 0.5);
            color: #fff;
        }
        .cta-block .btn-cta-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.08);
            color: #fff;
            font-weight: 500;
            padding: 16px 36px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, 0.2);
            font-size: 1rem;
            transition: var(--transition);
            margin-left: 12px;
        }
        .cta-block .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, 0.16);
            color: #fff;
        }
        @media (max-width: 768px) {
            .cta-block {
                padding: 40px 24px;
                border-radius: var(--border-radius-md);
            }
            .cta-block h2 {
                font-size: 1.5rem;
            }
            .cta-block .btn-cta-primary,
            .cta-block .btn-cta-secondary {
                padding: 14px 28px;
                font-size: 0.95rem;
                width: 100%;
                max-width: 300px;
                margin-left: 0;
                margin-top: 10px;
            }
            .cta-block .btn-cta-secondary {
                margin-left: 0;
            }
        }

        /* ===== 适用场景网格 ===== */
        .scene-card {
            background: #fff;
            border: 1px solid var(--border-color);
            border-radius: var(--border-radius-md);
            padding: 28px 24px;
            text-align: center;
            transition: var(--transition);
            height: 100%;
        }
        .scene-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: transparent;
        }
        .scene-card .scene-icon {
            font-size: 2rem;
            color: var(--primary-light);
            margin-bottom: 14px;
        }
        .scene-card h5 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }
        .scene-card p {
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 0;
            line-height: 1.6;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 56px 0 30px;
            margin-top: 20px;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.35rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }
        .site-footer .footer-brand .brand-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            color: #fff;
            border-radius: 8px;
            font-size: 1rem;
            font-weight: 700;
        }
        .site-footer .footer-desc {
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 380px;
            color: rgba(255, 255, 255, 0.6);
        }
        .site-footer .footer-links h5 {
            font-size: 0.95rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .site-footer .footer-links a {
            display: block;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.6);
            padding: 4px 0;
            transition: var(--transition);
        }
        .site-footer .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .site-footer .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding-top: 22px;
            margin-top: 32px;
            text-align: center;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
        }
        .site-footer .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }
        .site-footer .footer-bottom a:hover {
            color: #fff;
        }
        @media (max-width: 768px) {
            .site-footer {
                padding: 40px 0 24px;
            }
            .site-footer .footer-brand {
                font-size: 1.15rem;
            }
            .site-footer .footer-links {
                margin-top: 24px;
            }
        }

        /* ===== 额外响应式 ===== */
        @media (max-width: 992px) {
            .category-hero .hero-stats {
                gap: 20px 32px;
            }
        }
        @media (max-width: 576px) {
            .category-hero .hero-cta-group {
                flex-direction: column;
                align-items: stretch;
            }
            .category-hero .btn-hero-primary,
            .category-hero .btn-hero-secondary {
                justify-content: center;
                text-align: center;
            }
        }

        /* ===== 工具类 ===== */
        .text-accent {
            color: var(--accent);
        }
        .text-gold {
            color: var(--gold);
        }
        .mt-2 {
            margin-top: 20px;
        }
        .mb-2 {
            margin-bottom: 20px;
        }
        .gap-2 {
            gap: 20px;
        }
        .rounded-img {
            border-radius: var(--border-radius-md);
        }
        .shadow-img {
            box-shadow: var(--shadow-md);
        }