/* roulang page: index */
/* ===== 设计变量 ===== */
        :root {
            --primary: #0b0f2a;
            --primary-light: #141a3e;
            --primary-dark: #06091a;
            --accent: #d4a843;
            --accent-light: #f0c15a;
            --accent-dark: #b8922e;
            --text-primary: #ffffff;
            --text-secondary: #c8cce0;
            --text-muted: #888cad;
            --bg-body: #0b0f2a;
            --bg-card: rgba(20, 26, 62, 0.85);
            --bg-card-hover: rgba(30, 38, 80, 0.95);
            --border-color: rgba(212, 168, 67, 0.2);
            --border-light: rgba(255, 255, 255, 0.06);
            --shadow-sm: 0 2px 12px rgba(0, 0, 0, 0.3);
            --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
            --shadow-lg: 0 16px 56px rgba(0, 0, 0, 0.5);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --max-width: 1200px;
            --header-height: 76px;
        }

        /* ===== 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);
            font-size: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            min-height: 100vh;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
        }
        a {
            color: var(--accent);
            text-decoration: none;
            transition: color var(--transition);
        }
        a:hover {
            color: var(--accent-light);
        }
        ul,
        ol {
            list-style: none;
        }
        button,
        input,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }
        p {
            color: var(--text-secondary);
        }

        /* ===== Container ===== */
        .container {
            width: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Utility ===== */
        .section-padding {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section-padding {
                padding: 48px 0;
            }
        }
        .section-title {
            font-size: 2.2rem;
            font-weight: 800;
            text-align: center;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 1.6rem;
            }
        }
        .section-subtitle {
            text-align: center;
            font-size: 1.05rem;
            color: var(--text-muted);
            max-width: 640px;
            margin: 0 auto 48px auto;
            line-height: 1.6;
        }
        @media (max-width: 768px) {
            .section-subtitle {
                margin-bottom: 32px;
                font-size: 0.95rem;
            }
        }
        .accent-text {
            color: var(--accent);
        }
        .accent-line {
            width: 60px;
            height: 3px;
            background: linear-gradient(90deg, var(--accent), var(--accent-light));
            border-radius: 3px;
            margin: 16px auto 24px auto;
        }

        /* ===== Header & Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(11, 15, 42, 0.92);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-light);
            transition: background var(--transition), box-shadow var(--transition);
        }
        .site-header.scrolled {
            background: rgba(6, 9, 26, 0.96);
            box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--text-primary);
            letter-spacing: -0.3px;
        }
        .logo i {
            color: var(--accent);
            font-size: 1.6rem;
        }
        .logo span {
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            color: var(--text-primary);
        }

        /* Nav Desktop */
        .main-nav {
            display: flex;
            align-items: center;
            gap: 8px;
        }
        .main-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 0.95rem;
            transition: all var(--transition);
            position: relative;
        }
        .main-nav a i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .main-nav a:hover {
            color: var(--text-primary);
            background: rgba(212, 168, 67, 0.08);
        }
        .main-nav a.active {
            color: var(--accent);
            background: rgba(212, 168, 67, 0.12);
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 2px;
            background: var(--accent);
            border-radius: 2px;
        }
        .nav-cta {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
            color: var(--primary) !important;
            font-weight: 700 !important;
            padding: 8px 22px !important;
            border-radius: var(--radius-sm) !important;
            box-shadow: 0 4px 16px rgba(212, 168, 67, 0.3);
            transition: all var(--transition) !important;
        }
        .nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 28px rgba(212, 168, 67, 0.4) !important;
            color: var(--primary) !important;
            background: linear-gradient(135deg, var(--accent-light), var(--accent)) !important;
        }
        .nav-cta i {
            opacity: 1 !important;
        }

        /* Mobile Toggle */
        .mobile-toggle {
            display: none;
            font-size: 1.5rem;
            color: var(--text-primary);
            padding: 8px;
            border-radius: var(--radius-sm);
            background: rgba(255, 255, 255, 0.05);
            transition: background var(--transition);
        }
        .mobile-toggle:hover {
            background: rgba(255, 255, 255, 0.1);
        }

        /* Mobile Nav */
        .mobile-nav {
            display: none;
            position: fixed;
            top: var(--header-height);
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(6, 9, 26, 0.98);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 24px;
            flex-direction: column;
            gap: 8px;
            z-index: 999;
            overflow-y: auto;
        }
        .mobile-nav.open {
            display: flex;
        }
        .mobile-nav a {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 14px 18px;
            border-radius: var(--radius-md);
            color: var(--text-secondary);
            font-weight: 500;
            font-size: 1.05rem;
            transition: all var(--transition);
            border: 1px solid transparent;
        }
        .mobile-nav a i {
            width: 24px;
            text-align: center;
            color: var(--accent);
        }
        .mobile-nav a:hover,
        .mobile-nav a.active {
            color: var(--text-primary);
            background: rgba(212, 168, 67, 0.08);
            border-color: var(--border-color);
        }
        .mobile-nav .nav-cta {
            margin-top: 12px;
            justify-content: center;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark)) !important;
            color: var(--primary) !important;
            font-weight: 700 !important;
            border: none !important;
        }
        .mobile-nav .nav-cta i {
            color: var(--primary) !important;
        }

        @media (max-width: 768px) {
            .main-nav {
                display: none;
            }
            .mobile-toggle {
                display: block;
            }
            .site-header {
                height: 64px;
            }
            :root {
                --header-height: 64px;
            }
            .logo {
                font-size: 1.25rem;
            }
            .logo i {
                font-size: 1.3rem;
            }
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 120px 0 80px;
            overflow: hidden;
            background: var(--primary-dark);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
            opacity: 0.35;
            z-index: 0;
        }
        .hero-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(11, 15, 42, 0.3) 0%, var(--primary-dark) 80%);
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(6, 9, 26, 0.3) 0%, var(--primary-dark) 100%);
            z-index: 1;
        }
        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 820px;
            padding: 0 24px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 20px;
            border-radius: 50px;
            background: rgba(212, 168, 67, 0.12);
            border: 1px solid var(--border-color);
            color: var(--accent-light);
            font-size: 0.85rem;
            font-weight: 500;
            margin-bottom: 24px;
            letter-spacing: 0.3px;
        }
        .hero-badge i {
            font-size: 0.75rem;
        }
        .hero-title {
            font-size: 3.6rem;
            font-weight: 900;
            line-height: 1.15;
            letter-spacing: -1.5px;
            margin-bottom: 20px;
            background: linear-gradient(135deg, #ffffff 30%, var(--accent-light) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        @media (max-width: 768px) {
            .hero-title {
                font-size: 2.2rem;
            }
        }
        @media (max-width: 520px) {
            .hero-title {
                font-size: 1.8rem;
            }
        }
        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-secondary);
            max-width: 600px;
            margin: 0 auto 32px;
            line-height: 1.7;
        }
        @media (max-width: 768px) {
            .hero-desc {
                font-size: 1rem;
            }
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 14px 32px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 1rem;
            transition: all var(--transition);
            border: 2px solid transparent;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary);
            box-shadow: 0 6px 24px rgba(212, 168, 67, 0.3);
        }
        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 40px rgba(212, 168, 67, 0.4);
            color: var(--primary);
        }
        .btn-outline {
            background: transparent;
            border-color: rgba(212, 168, 67, 0.4);
            color: var(--accent-light);
        }
        .btn-outline:hover {
            background: rgba(212, 168, 67, 0.1);
            border-color: var(--accent);
            color: var(--accent-light);
            transform: translateY(-3px);
        }
        .hero-stats {
            display: flex;
            justify-content: center;
            gap: 40px;
            margin-top: 48px;
            flex-wrap: wrap;
        }
        .hero-stat {
            text-align: center;
        }
        .hero-stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-light);
            line-height: 1.2;
        }
        .hero-stat-label {
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }
        @media (max-width: 520px) {
            .hero-stats {
                gap: 24px;
            }
            .hero-stat-number {
                font-size: 1.5rem;
            }
        }

        /* ===== Features Section ===== */
        .features {
            background: var(--primary);
            position: relative;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
        }
        @media (max-width: 768px) {
            .features-grid {
                grid-template-columns: 1fr;
                gap: 20px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .feature-card {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-lg);
            padding: 36px 28px;
            transition: all var(--transition);
            text-align: center;
        }
        .feature-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: var(--radius-md);
            background: rgba(212, 168, 67, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--accent);
            margin: 0 auto 20px;
            transition: all var(--transition);
        }
        .feature-card:hover .feature-icon {
            background: rgba(212, 168, 67, 0.2);
            transform: scale(1.05);
        }
        .feature-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .feature-desc {
            font-size: 0.92rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* ===== Categories Section ===== */
        .categories {
            background: var(--primary-dark);
            position: relative;
        }
        .categories::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            opacity: 0.06;
            z-index: 0;
        }
        .categories .container {
            position: relative;
            z-index: 1;
        }
        .categories-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .categories-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }
        @media (min-width: 769px) and (max-width: 1024px) {
            .categories-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        .category-card {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
            min-height: 280px;
            display: flex;
            align-items: flex-end;
        }
        .category-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: var(--border-color);
        }
        .category-card-bg {
            position: absolute;
            inset: 0;
            z-index: 0;
        }
        .category-card-bg img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }
        .category-card:hover .category-card-bg img {
            transform: scale(1.08);
        }
        .category-card-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(0deg, rgba(6, 9, 26, 0.92) 0%, rgba(6, 9, 26, 0.3) 70%, transparent 100%);
        }
        .category-card-body {
            position: relative;
            z-index: 1;
            padding: 28px 24px;
            width: 100%;
        }
        .category-card-body h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .category-card-body p {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-bottom: 14px;
        }
        .category-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 6px 0;
            color: var(--accent);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
        }
        .category-link i {
            transition: transform var(--transition);
        }
        .category-link:hover i {
            transform: translateX(4px);
        }

        /* ===== Latest News Section (CMS) ===== */
        .latest-news {
            background: var(--primary);
            position: relative;
        }
        .news-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .news-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
        }
        .news-card {
            display: flex;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: all var(--transition);
        }
        .news-card:hover {
            background: var(--bg-card-hover);
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--border-color);
        }
        .news-card-thumb {
            width: 180px;
            min-height: 160px;
            flex-shrink: 0;
            overflow: hidden;
            background: var(--primary-light);
        }
        .news-card-thumb img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .news-card-thumb img {
            transform: scale(1.06);
        }
        .news-card-body {
            padding: 20px 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .news-card-meta {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 8px;
            font-size: 0.78rem;
        }
        .news-card-category {
            padding: 2px 12px;
            border-radius: 50px;
            background: rgba(212, 168, 67, 0.12);
            color: var(--accent-light);
            font-weight: 500;
            font-size: 0.75rem;
        }
        .news-card-date {
            color: var(--text-muted);
            font-size: 0.78rem;
        }
        .news-card-title {
            font-size: 1.05rem;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card-title a {
            color: var(--text-primary);
            transition: color var(--transition);
        }
        .news-card-title a:hover {
            color: var(--accent);
        }
        .news-card-excerpt {
            font-size: 0.88rem;
            color: var(--text-muted);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            flex: 1;
            line-height: 1.5;
        }
        .news-empty {
            grid-column: 1 / -1;
            text-align: center;
            padding: 48px 24px;
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            border: 1px dashed var(--border-color);
        }
        .news-empty i {
            font-size: 2.4rem;
            color: var(--text-muted);
            margin-bottom: 16px;
        }
        .news-empty p {
            color: var(--text-muted);
            font-size: 1rem;
        }

        @media (max-width: 600px) {
            .news-card {
                flex-direction: column;
            }
            .news-card-thumb {
                width: 100%;
                height: 180px;
            }
            .news-card-body {
                padding: 16px;
            }
        }

        /* ===== Stats / Data Section ===== */
        .stats-section {
            background: var(--primary-dark);
            position: relative;
            overflow: hidden;
        }
        .stats-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.05;
            z-index: 0;
        }
        .stats-section .container {
            position: relative;
            z-index: 1;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        @media (max-width: 768px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 16px;
            }
        }
        @media (max-width: 520px) {
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
        }
        .stat-item {
            text-align: center;
            padding: 32px 16px;
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: all var(--transition);
        }
        .stat-item:hover {
            background: var(--bg-card-hover);
            border-color: var(--border-color);
            transform: translateY(-4px);
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 900;
            background: linear-gradient(135deg, var(--accent), var(--accent-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            line-height: 1.2;
        }
        @media (max-width: 520px) {
            .stat-number {
                font-size: 1.8rem;
            }
        }
        .stat-label {
            font-size: 0.88rem;
            color: var(--text-muted);
            margin-top: 6px;
            font-weight: 500;
        }

        /* ===== Process / How It Works ===== */
        .process {
            background: var(--primary);
        }
        .process-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 32px;
            position: relative;
        }
        .process-grid::before {
            content: '';
            position: absolute;
            top: 48px;
            left: 16%;
            right: 16%;
            height: 2px;
            background: linear-gradient(90deg, var(--border-color), var(--accent), var(--border-color));
            opacity: 0.3;
        }
        @media (max-width: 768px) {
            .process-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .process-grid::before {
                display: none;
            }
        }
        .process-step {
            text-align: center;
            position: relative;
        }
        .process-step-number {
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary);
            font-size: 1.4rem;
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            box-shadow: 0 8px 28px rgba(212, 168, 67, 0.25);
            position: relative;
            z-index: 2;
        }
        .process-step h4 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .process-step p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 260px;
            margin: 0 auto;
            line-height: 1.6;
        }

        /* ===== FAQ Section ===== */
        .faq-section {
            background: var(--primary-dark);
            position: relative;
        }
        .faq-list {
            max-width: 780px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border: 1px solid var(--border-light);
            border-radius: var(--radius-md);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-color);
        }
        .faq-question {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            background: transparent;
            text-align: left;
            transition: all var(--transition);
            gap: 16px;
        }
        .faq-question:hover {
            color: var(--accent-light);
        }
        .faq-question i {
            font-size: 0.85rem;
            color: var(--accent);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question i {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.4s ease;
            padding: 0 24px;
            color: var(--text-secondary);
            font-size: 0.95rem;
            line-height: 1.7;
        }
        .faq-item.open .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }
        .faq-answer p {
            color: var(--text-muted);
        }

        /* ===== CTA Section ===== */
        .cta-section {
            background: var(--primary);
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 50% 0%, rgba(212, 168, 67, 0.06) 0%, transparent 70%);
            z-index: 0;
        }
        .cta-section .container {
            position: relative;
            z-index: 1;
        }
        .cta-box {
            background: linear-gradient(135deg, rgba(212, 168, 67, 0.08), rgba(212, 168, 67, 0.02));
            border: 1px solid var(--border-color);
            border-radius: var(--radius-xl);
            padding: 60px 48px;
            text-align: center;
            max-width: 840px;
            margin: 0 auto;
        }
        @media (max-width: 768px) {
            .cta-box {
                padding: 36px 24px;
            }
        }
        .cta-box h2 {
            font-size: 2rem;
            font-weight: 800;
            margin-bottom: 12px;
        }
        @media (max-width: 768px) {
            .cta-box h2 {
                font-size: 1.5rem;
            }
        }
        .cta-box p {
            color: var(--text-muted);
            margin-bottom: 28px;
            font-size: 1.05rem;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 14px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--primary-dark);
            border-top: 1px solid var(--border-light);
            padding: 48px 0 24px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 32px;
        }
        @media (max-width: 768px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 28px;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
        }
        .footer-brand .logo {
            margin-bottom: 12px;
        }
        .footer-brand p {
            font-size: 0.9rem;
            color: var(--text-muted);
            max-width: 320px;
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 0.95rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: 0.3px;
        }
        .footer-col ul li {
            margin-bottom: 8px;
        }
        .footer-col ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: all var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .footer-col ul li a:hover {
            color: var(--accent);
            padding-left: 4px;
        }
        .footer-col ul li a i {
            font-size: 0.7rem;
            opacity: 0.5;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            padding-top: 20px;
            border-top: 1px solid var(--border-light);
            font-size: 0.85rem;
            color: var(--text-muted);
            gap: 12px;
        }
        .footer-bottom a {
            color: var(--text-muted);
        }
        .footer-bottom a:hover {
            color: var(--accent);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.04);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 1rem;
            transition: all var(--transition);
            border: 1px solid var(--border-light);
        }
        .footer-social a:hover {
            background: rgba(212, 168, 67, 0.15);
            color: var(--accent);
            border-color: var(--border-color);
            transform: translateY(-2px);
        }

        /* ===== Scroll to Top ===== */
        .scroll-top {
            position: fixed;
            bottom: 32px;
            right: 32px;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent), var(--accent-dark));
            color: var(--primary);
            font-size: 1.2rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 8px 28px rgba(212, 168, 67, 0.3);
            z-index: 100;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: all var(--transition);
            border: none;
        }
        .scroll-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .scroll-top:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 40px rgba(212, 168, 67, 0.4);
        }

        /* ===== Responsive Fine-tune ===== */
        @media (max-width: 1024px) {
            .hero-title {
                font-size: 2.8rem;
            }
        }
        @media (max-width: 520px) {
            .hero {
                min-height: 90vh;
                padding: 100px 0 60px;
            }
            .hero-title {
                font-size: 1.6rem;
            }
            .hero-desc {
                font-size: 0.92rem;
            }
            .btn {
                padding: 12px 22px;
                font-size: 0.9rem;
            }
            .section-title {
                font-size: 1.4rem;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .cta-box h2 {
                font-size: 1.3rem;
            }
        }

        /* ===== Selection ===== */
        ::selection {
            background: rgba(212, 168, 67, 0.3);
            color: var(--text-primary);
        }

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

        /* ===== Skeleton / Loading ===== */
        .skeleton {
            background: linear-gradient(90deg, var(--bg-card) 25%, rgba(255, 255, 255, 0.03) 50%, var(--bg-card) 75%);
            background-size: 200% 100%;
            animation: skeleton 1.5s infinite;
            border-radius: var(--radius-sm);
        }
        @keyframes skeleton {
            0% {
                background-position: 200% 0;
            }
            100% {
                background-position: -200% 0;
            }
        }

/* roulang page: article */
/* ===== Design Variables ===== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --secondary: #e8b830;
            --secondary-light: #f0d060;
            --secondary-dark: #c8a020;
            --accent: #c0392b;
            --bg-body: #f5f6fa;
            --bg-card: #ffffff;
            --bg-dark: #0f1a4a;
            --bg-soft: #eef0f7;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8888a8;
            --text-white: #ffffff;
            --border-color: #e0e3ed;
            --border-light: #f0f2f8;
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
            --shadow-md: 0 6px 24px rgba(0,0,0,0.10);
            --shadow-lg: 0 16px 48px rgba(0,0,0,0.14);
            --shadow-hover: 0 12px 36px rgba(0,0,0,0.12);
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'PingFang SC', 'Microsoft YaHei', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

        /* ===== 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: 16px;
            line-height: 1.7;
            color: var(--text-primary);
            background: var(--bg-body);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: var(--primary); text-decoration: none; transition: var(--transition); }
        a:hover { color: var(--primary-light); }
        a:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }
        button { cursor: pointer; font-family: inherit; font-size: inherit; border: none; background: none; transition: var(--transition); }
        button:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 6px; }
        input, textarea { font-family: inherit; font-size: inherit; border: 1px solid var(--border-color); border-radius: var(--radius-sm); padding: 10px 16px; transition: var(--transition); background: var(--bg-card); color: var(--text-primary); }
        input:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,42,108,0.12); }
        ul, ol { list-style: none; }
        h1, h2, h3, h4, h5, h6 { line-height: 1.3; color: var(--text-primary); font-weight: 700; }
        .container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
        @media (max-width: 768px) { .container { padding: 0 16px; } }

        /* ===== Header & Navigation ===== */
        .site-header {
            position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
            background: rgba(255,255,255,0.95); backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid var(--border-color);
            height: var(--header-height);
            box-shadow: 0 1px 4px rgba(0,0,0,0.04);
        }
        .site-header .container {
            display: flex; align-items: center; justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex; align-items: center; gap: 10px;
            font-size: 22px; font-weight: 800; color: var(--primary);
            letter-spacing: -0.3px;
        }
        .logo i { color: var(--secondary); font-size: 26px; }
        .logo:hover { color: var(--primary); opacity: 0.9; }
        .main-nav {
            display: flex; align-items: center; gap: 6px;
        }
        .main-nav a {
            display: flex; align-items: center; gap: 6px;
            padding: 8px 18px; border-radius: var(--radius-sm);
            font-size: 15px; font-weight: 500; color: var(--text-secondary);
            background: transparent; border: 1px solid transparent;
            transition: var(--transition);
        }
        .main-nav a i { font-size: 14px; }
        .main-nav a:hover { color: var(--primary); background: var(--bg-soft); border-color: var(--border-color); }
        .main-nav a.active { color: var(--text-white); background: var(--primary); border-color: var(--primary); box-shadow: 0 4px 12px rgba(26,42,108,0.25); }
        .main-nav a.nav-cta { color: var(--text-white); background: var(--secondary); border-color: var(--secondary); font-weight: 600; box-shadow: 0 4px 16px rgba(232,184,48,0.35); }
        .main-nav a.nav-cta:hover { background: var(--secondary-dark); border-color: var(--secondary-dark); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(232,184,48,0.45); }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; background: none; border: none; }
        .nav-toggle span { display: block; width: 26px; height: 2.5px; background: var(--text-primary); border-radius: 4px; transition: var(--transition); }
        .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
        .nav-toggle.active span:nth-child(2) { opacity: 0; }
        .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

        @media (max-width: 768px) {
            .nav-toggle { display: flex; }
            .main-nav {
                position: fixed; top: var(--header-height); left: 0; right: 0;
                flex-direction: column; background: var(--bg-card);
                border-bottom: 1px solid var(--border-color);
                padding: 16px 20px; gap: 8px;
                transform: translateY(-110%); opacity: 0;
                box-shadow: var(--shadow-lg);
                transition: var(--transition);
                pointer-events: none;
            }
            .main-nav.open { transform: translateY(0); opacity: 1; pointer-events: all; }
            .main-nav a { width: 100%; justify-content: center; padding: 12px 18px; font-size: 16px; }
        }

        /* ===== Breadcrumb ===== */
        .breadcrumb-bar {
            background: var(--bg-card); border-bottom: 1px solid var(--border-color);
            padding: 12px 0; margin-top: var(--header-height);
        }
        .breadcrumb-bar .container { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 14px; color: var(--text-light); }
        .breadcrumb-bar a { color: var(--text-secondary); }
        .breadcrumb-bar a:hover { color: var(--primary); }
        .breadcrumb-bar span { color: var(--text-primary); font-weight: 500; }

        /* ===== Article Hero ===== */
        .article-hero {
            position: relative; padding: 48px 0 40px;
            background: var(--bg-card);
            border-bottom: 1px solid var(--border-color);
        }
        .article-hero .container { max-width: 820px; }
        .article-meta {
            display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px;
            margin-bottom: 20px; font-size: 14px; color: var(--text-light);
        }
        .article-meta .category-badge {
            display: inline-flex; align-items: center; gap: 4px;
            background: var(--bg-soft); color: var(--primary); font-weight: 600;
            padding: 4px 14px; border-radius: 20px; font-size: 13px;
        }
        .article-meta .category-badge i { font-size: 12px; }
        .article-meta .date { display: flex; align-items: center; gap: 6px; }
        .article-meta .date i { font-size: 13px; }
        .article-hero h1 {
            font-size: 32px; font-weight: 800; line-height: 1.3;
            color: var(--text-primary); margin-bottom: 16px;
        }
        .article-hero .excerpt {
            font-size: 18px; color: var(--text-secondary);
            line-height: 1.7; max-width: 720px;
        }
        @media (max-width: 768px) {
            .article-hero { padding: 32px 0 24px; }
            .article-hero h1 { font-size: 24px; }
            .article-hero .excerpt { font-size: 16px; }
        }

        /* ===== Article Cover Image ===== */
        .article-cover-wrap {
            background: var(--bg-card); padding-bottom: 32px;
        }
        .article-cover-wrap .container { max-width: 820px; }
        .article-cover {
            width: 100%; border-radius: var(--radius-md);
            overflow: hidden; box-shadow: var(--shadow-sm);
            aspect-ratio: 16 / 9; object-fit: cover;
            background: var(--bg-soft);
        }

        /* ===== Article Content ===== */
        .article-content-wrap {
            padding: 48px 0 56px; background: var(--bg-body);
        }
        .article-content-wrap .container { max-width: 820px; }
        .article-body {
            background: var(--bg-card); padding: 40px 48px;
            border-radius: var(--radius-md); box-shadow: var(--shadow-sm);
            font-size: 17px; line-height: 1.9; color: var(--text-primary);
        }
        .article-body p { margin-bottom: 1.6em; }
        .article-body h2 { font-size: 24px; margin-top: 2em; margin-bottom: 0.8em; padding-bottom: 8px; border-bottom: 2px solid var(--border-light); }
        .article-body h3 { font-size: 20px; margin-top: 1.6em; margin-bottom: 0.6em; }
        .article-body ul, .article-body ol { margin-bottom: 1.6em; padding-left: 24px; }
        .article-body ul { list-style: disc; }
        .article-body ol { list-style: decimal; }
        .article-body li { margin-bottom: 0.4em; }
        .article-body blockquote {
            border-left: 4px solid var(--secondary); padding: 16px 24px;
            margin: 1.6em 0; background: var(--bg-soft);
            border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
            color: var(--text-secondary); font-style: italic;
        }
        .article-body img { border-radius: var(--radius-sm); margin: 1.6em 0; box-shadow: var(--shadow-sm); }
        .article-body a { color: var(--primary); text-decoration: underline; font-weight: 500; }
        .article-body a:hover { color: var(--primary-light); }
        .article-body .article-tags {
            display: flex; flex-wrap: wrap; gap: 8px; margin-top: 2em;
            padding-top: 1.6em; border-top: 1px solid var(--border-color);
        }
        .article-body .article-tags span {
            display: inline-flex; align-items: center; gap: 4px;
            background: var(--bg-soft); color: var(--text-secondary);
            padding: 4px 14px; border-radius: 20px; font-size: 13px; font-weight: 500;
        }
        .article-body .article-tags span i { font-size: 12px; color: var(--primary); }

        @media (max-width: 768px) {
            .article-body { padding: 24px 20px; font-size: 16px; }
            .article-body h2 { font-size: 20px; }
            .article-body h3 { font-size: 18px; }
        }

        /* ===== Not Found ===== */
        .not-found-wrap {
            min-height: 50vh; display: flex; align-items: center; justify-content: center;
            text-align: center; padding: 80px 24px;
            background: var(--bg-body);
        }
        .not-found-wrap .not-found-box { max-width: 480px; }
        .not-found-wrap i { font-size: 56px; color: var(--text-light); margin-bottom: 16px; }
        .not-found-wrap h2 { font-size: 28px; margin-bottom: 12px; }
        .not-found-wrap p { color: var(--text-secondary); margin-bottom: 24px; font-size: 16px; }
        .not-found-wrap .btn-back { display: inline-flex; align-items: center; gap: 8px; padding: 12px 28px; background: var(--primary); color: var(--text-white); border-radius: var(--radius-sm); font-weight: 600; }
        .not-found-wrap .btn-back:hover { background: var(--primary-light); transform: translateY(-2px); box-shadow: var(--shadow-md); }

        /* ===== Related / CTA Section ===== */
        .related-section {
            padding: 48px 0; background: var(--bg-card);
            border-top: 1px solid var(--border-color);
        }
        .related-section .section-title {
            font-size: 22px; font-weight: 700; margin-bottom: 24px;
            display: flex; align-items: center; gap: 10px;
        }
        .related-section .section-title i { color: var(--secondary); }
        .related-grid {
            display: grid; grid-template-columns: repeat(3, 1fr);
            gap: 20px;
        }
        .related-card {
            background: var(--bg-body); border-radius: var(--radius-md);
            overflow: hidden; border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: var(--border-color); }
        .related-card img { width: 100%; aspect-ratio: 16/10; object-fit: cover; }
        .related-card .card-body { padding: 16px 18px 18px; }
        .related-card .card-body h3 { font-size: 16px; font-weight: 600; margin-bottom: 6px; line-height: 1.4; }
        .related-card .card-body h3 a { color: var(--text-primary); }
        .related-card .card-body h3 a:hover { color: var(--primary); }
        .related-card .card-body .meta-small { font-size: 13px; color: var(--text-light); display: flex; align-items: center; gap: 12px; }
        @media (max-width: 768px) { .related-grid { grid-template-columns: 1fr; } }
        @media (min-width: 769px) and (max-width: 1024px) { .related-grid { grid-template-columns: repeat(2, 1fr); } }

        /* ===== CTA ===== */
        .article-cta {
            background: var(--bg-dark); color: var(--text-white);
            padding: 56px 0; text-align: center;
            background-image: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
        }
        .article-cta h2 { color: var(--text-white); font-size: 28px; margin-bottom: 12px; }
        .article-cta p { color: rgba(255,255,255,0.75); max-width: 600px; margin: 0 auto 28px; font-size: 16px; }
        .article-cta .btn-cta {
            display: inline-flex; align-items: center; gap: 10px;
            padding: 14px 36px; background: var(--secondary); color: var(--primary-dark);
            font-weight: 700; font-size: 16px; border-radius: var(--radius-sm);
            transition: var(--transition);
        }
        .article-cta .btn-cta:hover { background: var(--secondary-light); transform: translateY(-2px); box-shadow: 0 8px 28px rgba(232,184,48,0.4); }

        /* ===== Footer ===== */
        .site-footer {
            background: var(--bg-dark); color: rgba(255,255,255,0.7);
            padding: 56px 0 0;
        }
        .site-footer .container { max-width: var(--container-max); }
        .footer-grid {
            display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px; padding-bottom: 40px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
        }
        .footer-brand .logo { color: var(--text-white); margin-bottom: 16px; font-size: 20px; }
        .footer-brand .logo i { color: var(--secondary); }
        .footer-brand p { font-size: 14px; line-height: 1.7; max-width: 320px; color: rgba(255,255,255,0.6); }
        .footer-col h4 { color: var(--text-white); font-size: 16px; font-weight: 600; margin-bottom: 16px; }
        .footer-col ul li { margin-bottom: 10px; }
        .footer-col ul li a { color: rgba(255,255,255,0.6); font-size: 14px; display: flex; align-items: center; gap: 6px; transition: var(--transition); }
        .footer-col ul li a i { font-size: 10px; color: var(--secondary); }
        .footer-col ul li a:hover { color: var(--text-white); padding-left: 4px; }
        .footer-bottom {
            display: flex; align-items: center; justify-content: space-between;
            padding: 20px 0; flex-wrap: wrap; gap: 12px;
            font-size: 13px; color: rgba(255,255,255,0.5);
        }
        .footer-bottom a { color: rgba(255,255,255,0.6); }
        .footer-bottom a:hover { color: var(--secondary); }
        .footer-social { display: flex; gap: 12px; }
        .footer-social a { color: rgba(255,255,255,0.5); font-size: 18px; transition: var(--transition); }
        .footer-social a:hover { color: var(--secondary); transform: scale(1.15); }
        @media (max-width: 768px) {
            .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
            .footer-brand { grid-column: 1 / -1; }
            .footer-bottom { flex-direction: column; text-align: center; }
        }
        @media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }

        /* ===== Utilities ===== */
        .text-center { text-align: center; }
        .mt-8 { margin-top: 8px; }
        .mb-8 { margin-bottom: 8px; }
        .gap-4 { gap: 4px; }
        .flex-center { display: flex; align-items: center; justify-content: center; }

        /* ===== Print ===== */
        @media print {
            .site-header, .site-footer, .article-cta, .related-section, .nav-toggle { display: none !important; }
            .article-hero, .article-content-wrap { background: #fff !important; }
            .article-body { box-shadow: none !important; padding: 0 !important; }
            body { background: #fff; }
            .breadcrumb-bar { display: none; }
        }

/* roulang page: category1 */
/* ========== 设计变量 ========== */
        :root {
            --primary: #1a2a6c;
            --primary-light: #2d4a8e;
            --primary-dark: #0f1a4a;
            --secondary: #e8b830;
            --secondary-light: #f0d060;
            --accent: #c0392b;
            --bg-light: #f5f7fc;
            --bg-white: #ffffff;
            --bg-dark: #0f1a2e;
            --text-primary: #1a1a2e;
            --text-secondary: #4a4a6a;
            --text-light: #8a8aaa;
            --text-white: #ffffff;
            --border-color: #e0e4f0;
            --border-light: #f0f2f8;
            --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 8px 40px rgba(26, 42, 108, 0.14);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 20px;
            --radius-xl: 28px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
            --max-width: 1200px;
            --header-height: 72px;
        }

        /* ========== Reset / Base ========== */
        *,
        *::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);
            padding-top: var(--header-height);
        }
        a {
            color: var(--primary);
            text-decoration: none;
            transition: var(--transition);
        }
        a:hover {
            color: var(--primary-light);
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
            font-size: inherit;
            line-height: inherit;
            border: none;
            outline: none;
        }
        button {
            cursor: pointer;
            background: none;
        }
        ul,
        ol {
            list-style: none;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-primary);
        }

        /* ========== 容器 ========== */
        .container {
            max-width: var(--max-width);
            margin: 0 auto;
            padding: 0 24px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            height: var(--header-height);
            background: rgba(255, 255, 255, 0.92);
            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 {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.5px;
            transition: var(--transition);
        }
        .logo i {
            font-size: 1.6rem;
            color: var(--secondary);
            transition: transform 0.4s ease;
        }
        .logo:hover i {
            transform: rotate(60deg) scale(1.1);
        }
        .logo span {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }
        .logo:hover {
            opacity: 0.9;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .main-nav a {
            display: flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: var(--radius-sm);
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            transition: var(--transition);
            position: relative;
        }
        .main-nav a i {
            font-size: 0.85rem;
            opacity: 0.7;
        }
        .main-nav a:hover {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.06);
        }
        .main-nav a.active {
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
            font-weight: 600;
        }
        .main-nav a.active::after {
            content: '';
            position: absolute;
            bottom: 2px;
            left: 18px;
            right: 18px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .main-nav a.nav-cta {
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            padding: 8px 22px;
            border-radius: var(--radius-xl);
            font-weight: 600;
            box-shadow: 0 4px 12px rgba(26, 42, 108, 0.25);
        }
        .main-nav a.nav-cta i {
            opacity: 1;
        }
        .main-nav a.nav-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(26, 42, 108, 0.35);
            color: #fff;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
        }

        /* 移动端汉堡 */
        .nav-toggle {
            display: none;
            font-size: 1.6rem;
            color: var(--primary);
            padding: 4px 8px;
            border-radius: var(--radius-sm);
            background: rgba(26, 42, 108, 0.05);
            transition: var(--transition);
        }
        .nav-toggle:hover {
            background: rgba(26, 42, 108, 0.10);
        }

        /* ========== 页面横幅 ========== */
        .page-banner {
            position: relative;
            padding: 80px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--primary-light) 100%);
            overflow: hidden;
            min-height: 280px;
            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: 0.20;
            mix-blend-mode: overlay;
        }
        .page-banner::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at 30% 50%, rgba(232, 184, 48, 0.15) 0%, transparent 70%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .page-banner h1 {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 20px rgba(0, 0, 0, 0.20);
        }
        .page-banner h1 i {
            color: var(--secondary);
            margin-right: 12px;
        }
        .page-banner p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin: 0 auto 24px;
            line-height: 1.8;
        }
        .page-banner .breadcrumb {
            display: flex;
            justify-content: center;
            align-items: center;
            gap: 8px;
            font-size: 0.9rem;
            color: rgba(255, 255, 255, 0.65);
        }
        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, 0.8);
        }
        .page-banner .breadcrumb a:hover {
            color: var(--secondary);
        }
        .page-banner .breadcrumb i {
            font-size: 0.7rem;
            color: rgba(255, 255, 255, 0.4);
        }
        .page-banner .breadcrumb .current {
            color: var(--secondary);
            font-weight: 500;
        }

        /* ========== 分类筛选标签 ========== */
        .category-tabs {
            background: var(--bg-white);
            border-bottom: 1px solid var(--border-color);
            padding: 16px 0;
            position: sticky;
            top: var(--header-height);
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        .category-tabs .container {
            display: flex;
            align-items: center;
            gap: 8px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }
        .category-tabs .container::-webkit-scrollbar {
            display: none;
        }
        .category-tabs .tab-label {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-light);
            margin-right: 8px;
            white-space: nowrap;
        }
        .category-tabs .tab-btn {
            padding: 6px 18px;
            border-radius: var(--radius-xl);
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-secondary);
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            white-space: nowrap;
            cursor: pointer;
        }
        .category-tabs .tab-btn:hover {
            border-color: var(--primary);
            color: var(--primary);
            background: rgba(26, 42, 108, 0.04);
        }
        .category-tabs .tab-btn.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 2px 12px rgba(26, 42, 108, 0.20);
        }

        /* ========== 资讯列表区域 ========== */
        .section-news {
            padding: 48px 0 60px;
        }
        .section-news .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-news .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-primary);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-news .section-header h2 i {
            color: var(--secondary);
            font-size: 1.6rem;
        }
        .section-news .section-header .sub-count {
            font-size: 0.9rem;
            color: var(--text-light);
            font-weight: 400;
        }
        .section-news .view-more {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--primary);
            padding: 8px 18px;
            border-radius: var(--radius-xl);
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }
        .section-news .view-more:hover {
            border-color: var(--primary);
            background: rgba(26, 42, 108, 0.04);
            transform: translateX(4px);
        }

        /* 资讯网格 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-md);
            border-color: rgba(26, 42, 108, 0.10);
        }
        .news-card .card-img {
            position: relative;
            width: 100%;
            aspect-ratio: 16 / 10;
            overflow: hidden;
            background: var(--bg-light);
        }
        .news-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .news-card:hover .card-img img {
            transform: scale(1.05);
        }
        .news-card .card-img .tag {
            position: absolute;
            top: 12px;
            left: 12px;
            padding: 4px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: #fff;
            background: var(--accent);
            border-radius: var(--radius-xl);
            letter-spacing: 0.3px;
            box-shadow: 0 2px 8px rgba(192, 57, 43, 0.30);
        }
        .news-card .card-img .tag.green {
            background: #1e8449;
            box-shadow: 0 2px 8px rgba(30, 132, 73, 0.30);
        }
        .news-card .card-img .tag.blue {
            background: #2c6fbb;
            box-shadow: 0 2px 8px rgba(44, 111, 187, 0.30);
        }
        .news-card .card-img .tag.orange {
            background: #d68910;
            box-shadow: 0 2px 8px rgba(214, 137, 16, 0.30);
        }
        .news-card .card-body {
            padding: 20px 22px 24px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .news-card .card-body .meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.8rem;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .news-card .card-body .meta i {
            margin-right: 4px;
            font-size: 0.75rem;
        }
        .news-card .card-body .meta span {
            display: flex;
            align-items: center;
        }
        .news-card .card-body h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
            line-height: 1.45;
            color: var(--text-primary);
            transition: var(--transition);
            flex: 1;
        }
        .news-card:hover .card-body h3 {
            color: var(--primary);
        }
        .news-card .card-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-card .card-body .read-more {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--primary);
            margin-top: auto;
            padding-top: 12px;
            border-top: 1px solid var(--border-light);
            transition: var(--transition);
        }
        .news-card .card-body .read-more i {
            font-size: 0.75rem;
            transition: transform 0.3s ease;
        }
        .news-card .card-body .read-more:hover i {
            transform: translateX(4px);
        }

        /* ========== 热门排行 ========== */
        .section-hot {
            padding: 48px 0 56px;
            background: var(--bg-white);
        }
        .section-hot .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-hot .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        .section-hot .section-header h2 i {
            color: var(--accent);
        }
        .section-hot .section-header p {
            color: var(--text-secondary);
            margin-top: 8px;
            font-size: 1rem;
        }

        .hot-list {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            max-width: 900px;
            margin: 0 auto;
        }
        .hot-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 16px 20px;
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            cursor: default;
        }
        .hot-item:hover {
            background: var(--bg-white);
            border-color: var(--border-color);
            box-shadow: var(--shadow-sm);
            transform: translateX(4px);
        }
        .hot-item .rank {
            flex-shrink: 0;
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 1rem;
            font-weight: 800;
            color: #fff;
            background: var(--primary);
        }
        .hot-item .rank.top1 {
            background: linear-gradient(135deg, #f1c40f, #e67e22);
        }
        .hot-item .rank.top2 {
            background: linear-gradient(135deg, #95a5a6, #7f8c8d);
        }
        .hot-item .rank.top3 {
            background: linear-gradient(135deg, #e67e22, #d35400);
        }
        .hot-item .hot-content {
            flex: 1;
            min-width: 0;
        }
        .hot-item .hot-content h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 4px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .hot-item .hot-content .hot-meta {
            font-size: 0.8rem;
            color: var(--text-light);
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .hot-item .hot-content .hot-meta i {
            font-size: 0.7rem;
        }
        .hot-item .hot-score {
            flex-shrink: 0;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--accent);
        }

        /* ========== 专题精选 ========== */
        .section-featured {
            padding: 56px 0 60px;
            background: var(--bg-light);
        }
        .section-featured .section-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 32px;
            flex-wrap: wrap;
            gap: 12px;
        }
        .section-featured .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .section-featured .section-header h2 i {
            color: var(--secondary);
        }
        .featured-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }
        .featured-card {
            position: relative;
            border-radius: var(--radius-md);
            overflow: hidden;
            background: var(--bg-white);
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-light);
            transition: var(--transition);
            display: flex;
            flex-direction: column;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
        }
        .featured-card .feat-img {
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-light);
            position: relative;
        }
        .featured-card .feat-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.5s ease;
        }
        .featured-card:hover .feat-img img {
            transform: scale(1.04);
        }
        .featured-card .feat-img .play-btn {
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.92);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.4rem;
            color: var(--primary);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.20);
            transition: var(--transition);
            cursor: pointer;
        }
        .featured-card .feat-img .play-btn:hover {
            transform: translate(-50%, -50%) scale(1.08);
            background: #fff;
        }
        .featured-card .feat-body {
            padding: 20px 22px 24px;
            flex: 1;
        }
        .featured-card .feat-body .feat-tag {
            display: inline-block;
            padding: 2px 14px;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--primary);
            background: rgba(26, 42, 108, 0.08);
            border-radius: var(--radius-xl);
            margin-bottom: 10px;
        }
        .featured-card .feat-body h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 8px;
            transition: var(--transition);
        }
        .featured-card:hover .feat-body h3 {
            color: var(--primary);
        }
        .featured-card .feat-body p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ========== 订阅 CTA ========== */
        .section-subscribe {
            padding: 56px 0 60px;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
            position: relative;
            overflow: hidden;
        }
        .section-subscribe::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-3.png') center center / cover no-repeat;
            opacity: 0.12;
            mix-blend-mode: overlay;
        }
        .section-subscribe .container {
            position: relative;
            z-index: 2;
            text-align: center;
        }
        .section-subscribe h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 12px;
        }
        .section-subscribe p {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.8);
            max-width: 600px;
            margin: 0 auto 28px;
        }
        .subscribe-form {
            display: flex;
            max-width: 520px;
            margin: 0 auto;
            gap: 10px;
            flex-wrap: wrap;
            justify-content: center;
        }
        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 200px;
            padding: 14px 20px;
            border-radius: var(--radius-xl);
            border: 1px solid rgba(255, 255, 255, 0.20);
            background: rgba(255, 255, 255, 0.12);
            color: #fff;
            font-size: 0.95rem;
            backdrop-filter: blur(4px);
            transition: var(--transition);
        }
        .subscribe-form input[type="email"]::placeholder {
            color: rgba(255, 255, 255, 0.55);
        }
        .subscribe-form input[type="email"]:focus {
            border-color: var(--secondary);
            background: rgba(255, 255, 255, 0.20);
            box-shadow: 0 0 0 3px rgba(232, 184, 48, 0.20);
        }
        .subscribe-form button {
            padding: 14px 32px;
            border-radius: var(--radius-xl);
            background: var(--secondary);
            color: var(--primary-dark);
            font-weight: 700;
            font-size: 0.95rem;
            transition: var(--transition);
            box-shadow: 0 4px 16px rgba(232, 184, 48, 0.30);
        }
        .subscribe-form button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 24px rgba(232, 184, 48, 0.45);
            background: var(--secondary-light);
        }

        /* ========== FAQ ========== */
        .section-faq {
            padding: 48px 0 56px;
            background: var(--bg-white);
        }
        .section-faq .section-header {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-faq .section-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 10px;
        }
        .section-faq .section-header h2 i {
            color: var(--secondary);
        }
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-light);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-light);
            overflow: hidden;
            transition: var(--transition);
        }
        .faq-item:hover {
            border-color: var(--border-color);
            box-shadow: var(--shadow-sm);
        }
        .faq-item .faq-q {
            padding: 18px 24px;
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            transition: var(--transition);
            user-select: none;
        }
        .faq-item .faq-q:hover {
            color: var(--primary);
        }
        .faq-item .faq-q i {
            color: var(--primary);
            transition: transform 0.3s ease;
            font-size: 0.85rem;
        }
        .faq-item.open .faq-q i {
            transform: rotate(180deg);
        }
        .faq-item .faq-a {
            padding: 0 24px 18px;
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            display: none;
        }
        .faq-item.open .faq-a {
            display: block;
        }
        .faq-item .faq-a p {
            margin-bottom: 8px;
        }
        .faq-item .faq-a p:last-child {
            margin-bottom: 0;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: var(--bg-dark);
            color: rgba(255, 255, 255, 0.75);
            padding: 52px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }
        .footer-brand .logo {
            display: inline-flex;
            color: var(--text-white);
            margin-bottom: 14px;
            font-size: 1.4rem;
        }
        .footer-brand .logo span {
            -webkit-text-fill-color: #fff;
            background: none;
        }
        .footer-brand .logo i {
            color: var(--secondary);
        }
        .footer-brand p {
            font-size: 0.9rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.6);
            max-width: 320px;
        }
        .footer-col h4 {
            color: var(--text-white);
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 16px;
            position: relative;
            padding-bottom: 8px;
        }
        .footer-col h4::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 32px;
            height: 3px;
            background: var(--secondary);
            border-radius: 4px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 0.9rem;
            display: flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }
        .footer-col ul li a:hover {
            color: var(--secondary);
            transform: translateX(4px);
        }
        .footer-col ul li a i {
            font-size: 0.7rem;
            color: var(--secondary);
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            font-size: 0.85rem;
            color: rgba(255, 255, 255, 0.45);
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.6);
        }
        .footer-bottom a:hover {
            color: var(--secondary);
        }
        .footer-social {
            display: flex;
            gap: 12px;
        }
        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.95rem;
            transition: var(--transition);
        }
        .footer-social a:hover {
            background: var(--secondary);
            color: var(--primary-dark);
            transform: translateY(-3px);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 1024px) {
            .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .featured-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 32px;
            }
            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .main-nav a {
                padding: 6px 14px;
                font-size: 0.85rem;
            }
            .main-nav a.nav-cta {
                padding: 6px 16px;
                font-size: 0.85rem;
            }
            .page-banner {
                padding: 60px 0 40px;
                min-height: 200px;
            }
            .page-banner h1 {
                font-size: 1.8rem;
            }
            .page-banner p {
                font-size: 1rem;
            }
            .section-news .section-header h2 {
                font-size: 1.4rem;
            }
            .section-hot .section-header h2 {
                font-size: 1.4rem;
            }
            .section-featured .section-header h2 {
                font-size: 1.4rem;
            }
            .section-subscribe h2 {
                font-size: 1.5rem;
            }
            .section-faq .section-header h2 {
                font-size: 1.4rem;
            }
            .news-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .hot-list {
                grid-template-columns: 1fr;
            }
            .featured-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .category-tabs .container {
                gap: 6px;
            }
            .category-tabs .tab-btn {
                padding: 4px 14px;
                font-size: 0.8rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .subscribe-form input[type="email"] {
                min-width: 160px;
            }
            .faq-item .faq-q {
                padding: 14px 18px;
                font-size: 0.95rem;
            }
            .faq-item .faq-a {
                padding: 0 18px 14px;
                font-size: 0.9rem;
            }
            /* 移动端导航切换 */
            .nav-toggle {
                display: block;
            }
            .main-nav {
                position: fixed;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: var(--bg-white);
                flex-direction: column;
                padding: 16px 24px;
                border-bottom: 1px solid var(--border-color);
                box-shadow: var(--shadow-md);
                transform: translateY(-120%);
                opacity: 0;
                pointer-events: none;
                transition: var(--transition);
                border-radius: 0 0 var(--radius-md) var(--radius-md);
                gap: 4px;
            }
            .main-nav.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }
            .main-nav a {
                width: 100%;
                padding: 12px 16px;
                font-size: 0.95rem;
                justify-content: flex-start;
                border-radius: var(--radius-sm);
            }
            .main-nav a.active::after {
                display: none;
            }
            .main-nav a.nav-cta {
                margin-top: 8px;
                justify-content: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .page-banner h1 {
                font-size: 1.5rem;
            }
            .page-banner h1 i {
                margin-right: 6px;
            }
            .page-banner p {
                font-size: 0.9rem;
            }
            .section-news .section-header {
                flex-direction: column;
                align-items: flex-start;
            }
            .section-news .section-header h2 {
                font-size: 1.2rem;
            }
            .section-hot .section-header h2 {
                font-size: 1.2rem;
            }
            .section-featured .section-header h2 {
                font-size: 1.2rem;
            }
            .section-subscribe h2 {
                font-size: 1.3rem;
            }
            .section-faq .section-header h2 {
                font-size: 1.2rem;
            }
            .subscribe-form {
                flex-direction: column;
                align-items: stretch;
            }
            .subscribe-form input[type="email"] {
                min-width: unset;
                text-align: center;
            }
            .subscribe-form button {
                width: 100%;
            }
            .hot-item {
                padding: 12px 16px;
            }
            .hot-item .hot-content h4 {
                font-size: 0.9rem;
            }
            .news-card .card-body {
                padding: 16px 18px 20px;
            }
            .news-card .card-body h3 {
                font-size: 1rem;
            }
            .featured-card .feat-body {
                padding: 16px 18px 20px;
            }
            .featured-card .feat-body h3 {
                font-size: 1rem;
            }
            .footer-grid {
                gap: 20px;
            }
            .footer-brand p {
                font-size: 0.85rem;
            }
        }

        /* ========== 工具类 ========== */
        .text-center {
            text-align: center;
        }
        .mt-8 {
            margin-top: 8px;
        }
        .mb-16 {
            margin-bottom: 16px;
        }
        .gap-8 {
            gap: 8px;
        }
        .flex-center {
            display: flex;
            align-items: center;
            justify-content: center;
        }