/* ==================== CSS 变量与基础重置 ==================== */
        :root {
            --primary: #2563eb;
            --primary-dark: #1d4ed8;
            --primary-light: #3b82f6;
            --accent: #7c3aed;
            --accent-light: #a78bfa;
            --energy: #f59e0b;
            --energy-light: #fbbf24;
            --success: #10b981;
            --danger: #ef4444;
            --dark: #0f172a;
            --dark-secondary: #1e293b;
            --gray-50: #f8fafc;
            --gray-100: #f1f5f9;
            --gray-200: #e2e8f0;
            --gray-300: #cbd5e1;
            --gray-400: #94a3b8;
            --gray-500: #64748b;
            --gray-600: #475569;
            --gray-700: #334155;
            --text-primary: #0f172a;
            --text-secondary: #475569;
            --text-muted: #94a3b8;
            --bg-page: #f8fafc;
            --bg-card: #ffffff;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
            --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
            --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
            --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.15);
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-xl: 20px;
            --radius-full: 9999px;
            --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
            --container-max: 1200px;
            --header-height: 72px;
        }

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

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

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

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

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

        ul,
        ol {
            list-style: none;
        }

        input,
        button,
        textarea {
            font-family: inherit;
            font-size: inherit;
            outline: none;
            border: none;
        }

        button {
            cursor: pointer;
            background: none;
        }

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

        /* ==================== 通用工具类 ==================== */
        .section {
            padding: 72px 0;
        }
        .section-header {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .section-header p {
            font-size: 1.05rem;
            color: var(--text-secondary);
            max-width: 640px;
            margin: 0 auto;
        }
        .section-tag {
            display: inline-block;
            padding: 6px 18px;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
            color: var(--primary);
            font-size: 0.82rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 16px;
            letter-spacing: 0.04em;
            text-transform: uppercase;
        }
        .text-center {
            text-align: center;
        }
        .mt-16 {
            margin-top: 16px;
        }
        .mt-24 {
            margin-top: 24px;
        }
        .mt-32 {
            margin-top: 32px;
        }
        .mt-48 {
            margin-top: 48px;
        }

        /* ==================== 顶部导航栏 ==================== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-color);
            transition: box-shadow var(--transition);
        }
        .site-header.scrolled {
            box-shadow: var(--shadow-md);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: var(--header-height);
            gap: 16px;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .header-logo img {
            height: 40px;
            width: auto;
            border-radius: var(--radius-sm);
        }
        .header-logo .logo-text {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
            white-space: nowrap;
        }
        .header-logo .logo-text span {
            color: var(--primary);
        }
        .header-nav {
            display: flex;
            align-items: center;
            gap: 4px;
            flex-shrink: 0;
        }
        .header-nav a {
            display: inline-block;
            padding: 8px 16px;
            font-size: 0.95rem;
            font-weight: 500;
            color: var(--text-secondary);
            border-radius: var(--radius-full);
            transition: all var(--transition);
            white-space: nowrap;
        }
        .header-nav a:hover,
        .header-nav a.active {
            color: var(--primary);
            background: rgba(37, 99, 235, 0.08);
        }
        .header-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: var(--gray-100);
            border-radius: var(--radius-full);
            padding: 6px 16px;
            flex-shrink: 1;
            min-width: 180px;
            max-width: 260px;
            border: 1px solid transparent;
            transition: border-color var(--transition);
        }
        .header-search:focus-within {
            border-color: var(--primary);
            background: #fff;
        }
        .header-search input {
            background: transparent;
            border: none;
            outline: none;
            font-size: 0.9rem;
            color: var(--text-primary);
            width: 100%;
        }
        .header-search input::placeholder {
            color: var(--text-muted);
        }
        .header-search button {
            color: var(--gray-500);
            display: flex;
            align-items: center;
            justify-content: center;
            transition: color var(--transition);
            flex-shrink: 0;
        }
        .header-search button:hover {
            color: var(--primary);
        }
        .hamburger {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: var(--radius-sm);
            transition: background var(--transition);
            flex-shrink: 0;
        }
        .hamburger:hover {
            background: var(--gray-100);
        }
        .hamburger span {
            display: block;
            width: 24px;
            height: 2px;
            background: var(--text-primary);
            border-radius: 2px;
            transition: all var(--transition);
        }

        /* ==================== Banner 轮播区 ==================== */
        .hero-banner {
            margin-top: var(--header-height);
            position: relative;
            height: 520px;
            overflow: hidden;
            background: var(--dark);
        }
        .hero-slides {
            display: flex;
            width: 300%;
            height: 100%;
            transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }
        .hero-slide {
            width: calc(100% / 3);
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }
        .hero-slide .slide-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
        }
        .hero-slide .slide-bg::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(15, 23, 42, 0.75) 0%, rgba(37, 99, 235, 0.55) 50%, rgba(124, 58, 237, 0.6) 100%);
        }
        .hero-slide .slide-content {
            position: relative;
            z-index: 2;
            text-align: center;
            padding: 0 24px;
            max-width: 820px;
        }
        .hero-slide .slide-content h1 {
            font-size: 2.8rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
            line-height: 1.25;
        }
        .hero-slide .slide-content p {
            font-size: 1.15rem;
            color: rgba(255, 255, 255, 0.9);
            margin-bottom: 28px;
            line-height: 1.8;
        }
        .hero-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 12px 28px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            transition: all var(--transition);
            letter-spacing: 0.01em;
            white-space: nowrap;
        }
        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: #fff;
            box-shadow: 0 4px 20px rgba(37, 99, 235, 0.4);
        }
        .btn-primary:hover {
            color: #fff;
            box-shadow: 0 8px 30px rgba(37, 99, 235, 0.55);
            transform: translateY(-2px);
        }
        .btn-outline {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }
        .btn-outline:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }
        .hero-controls {
            position: absolute;
            bottom: 28px;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            gap: 12px;
            z-index: 3;
            align-items: center;
        }
        .hero-dot {
            width: 10px;
            height: 10px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.4);
            border: none;
            cursor: pointer;
            transition: all var(--transition);
        }
        .hero-dot.active {
            background: #fff;
            width: 28px;
            border-radius: 5px;
        }
        .hero-arrow {
            position: absolute;
            top: 50%;
            transform: translateY(-50%);
            z-index: 3;
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.3);
            color: #fff;
            font-size: 1.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all var(--transition);
        }
        .hero-arrow:hover {
            background: rgba(255, 255, 255, 0.3);
        }
        .hero-arrow.prev {
            left: 20px;
        }
        .hero-arrow.next {
            right: 20px;
        }

        /* ==================== 数据展示区 ==================== */
        .stats-section {
            background: linear-gradient(135deg, var(--dark) 0%, var(--dark-secondary) 100%);
            padding: 48px 0;
            margin-top: -1px;
        }
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
            text-align: center;
        }
        .stat-item {
            padding: 12px 16px;
        }
        .stat-number {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            letter-spacing: -0.02em;
            line-height: 1.2;
        }
        .stat-number span {
            font-size: 1.6rem;
            color: var(--energy);
        }
        .stat-label {
            font-size: 0.95rem;
            color: rgba(255, 255, 255, 0.7);
            margin-top: 4px;
        }

        /* ==================== 平台特色区 ==================== */
        .features-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .feature-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
        }
        .feature-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
            border-color: rgba(37, 99, 235, 0.3);
        }
        .feature-icon {
            width: 64px;
            height: 64px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
            font-size: 1.8rem;
            background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(124, 58, 237, 0.1));
        }
        .feature-card h3 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ==================== 关于我们 ==================== */
        .about-section {
            background: #fff;
        }
        .about-wrapper {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 48px;
            align-items: center;
        }
        .about-image {
            position: relative;
            border-radius: var(--radius-xl);
            overflow: hidden;
            box-shadow: var(--shadow-lg);
            min-height: 360px;
            background: linear-gradient(135deg, #1e40af 0%, #7c3aed 50%, #ec4899 100%);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .about-image .watermark {
            position: absolute;
            bottom: 16px;
            right: 20px;
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.8rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            z-index: 2;
        }
        .about-image .about-logo {
            font-size: 5rem;
            color: rgba(255, 255, 255, 0.9);
            text-align: center;
            z-index: 1;
        }
        .about-content h2 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }
        .about-content .about-desc {
            color: var(--text-secondary);
            font-size: 1rem;
            line-height: 1.9;
            margin-bottom: 24px;
        }
        .about-features {
            display: grid;
            gap: 16px;
        }
        .about-feature-item {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            padding: 16px 20px;
            border-radius: var(--radius-md);
            background: var(--gray-50);
            border-left: 3px solid var(--primary);
        }
        .about-feature-item .af-icon {
            font-size: 1.5rem;
            flex-shrink: 0;
            margin-top: 2px;
        }
        .about-feature-item h4 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .about-feature-item p {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ==================== 发展历程 ==================== */
        .history-section {
            background: var(--gray-50);
        }
        .timeline {
            position: relative;
            max-width: 800px;
            margin: 0 auto;
        }
        .timeline::before {
            content: '';
            position: absolute;
            left: 50%;
            top: 0;
            bottom: 0;
            width: 2px;
            background: var(--gray-200);
            transform: translateX(-50%);
        }
        .timeline-item {
            position: relative;
            padding: 20px 0;
            width: 50%;
        }
        .timeline-item:nth-child(odd) {
            left: 0;
            padding-right: 40px;
            text-align: right;
        }
        .timeline-item:nth-child(even) {
            left: 50%;
            padding-left: 40px;
            text-align: left;
        }
        .timeline-dot {
            position: absolute;
            top: 30px;
            width: 16px;
            height: 16px;
            border-radius: 50%;
            background: var(--primary);
            border: 3px solid #fff;
            box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
            z-index: 2;
        }
        .timeline-item:nth-child(odd) .timeline-dot {
            right: -8px;
        }
        .timeline-item:nth-child(even) .timeline-dot {
            left: -8px;
        }
        .timeline-card {
            display: inline-block;
            background: #fff;
            border-radius: var(--radius-md);
            padding: 20px 24px;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border-color);
            max-width: 100%;
        }
        .timeline-card .tl-year {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--primary);
            display: block;
            margin-bottom: 6px;
        }
        .timeline-card .tl-title {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 4px;
        }
        .timeline-card .tl-desc {
            font-size: 0.85rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ==================== 项目服务区 ==================== */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }
        .service-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            position: relative;
        }
        .service-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .service-img {
            aspect-ratio: 16/10;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.5rem;
            background: linear-gradient(135deg, #e0e7ff 0%, #fae8ff 50%, #dbeafe 100%);
        }
        .service-img .watermark {
            position: absolute;
            bottom: 8px;
            right: 10px;
            font-size: 0.65rem;
            color: rgba(0, 0, 0, 0.35);
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .service-body {
            padding: 18px 16px;
        }
        .service-body h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.4;
        }
        .service-body p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
        }

        /* ==================== 新闻资讯 ==================== */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .news-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .news-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .news-img {
            aspect-ratio: 16/10;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.8rem;
            background: linear-gradient(135deg, #dbeafe 0%, #ede9fe 50%, #fce7f3 100%);
        }
        .news-img .watermark {
            position: absolute;
            bottom: 8px;
            right: 10px;
            font-size: 0.65rem;
            color: rgba(0, 0, 0, 0.35);
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .news-body {
            padding: 20px;
        }
        .news-tag {
            display: inline-block;
            padding: 4px 12px;
            background: rgba(37, 99, 235, 0.1);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            border-radius: var(--radius-full);
            margin-bottom: 10px;
        }
        .news-body h3 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            line-height: 1.45;
        }
        .news-body p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 12px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .news-meta {
            display: flex;
            gap: 16px;
            font-size: 0.78rem;
            color: var(--text-muted);
        }

        /* ==================== 合作伙伴 ==================== */
        .partners-section {
            background: #fff;
        }
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(6, 1fr);
            gap: 20px;
        }
        .partner-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 10px;
            padding: 24px 12px;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            background: var(--gray-50);
            transition: all var(--transition);
            text-align: center;
        }
        .partner-item:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-2px);
            border-color: rgba(37, 99, 235, 0.3);
            background: #fff;
        }
        .partner-emoji {
            font-size: 2.5rem;
            line-height: 1;
        }
        .partner-name {
            font-size: 0.88rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        /* ==================== 常见问题 ==================== */
        .faq-list {
            max-width: 760px;
            margin: 0 auto;
            display: grid;
            gap: 12px;
        }
        .faq-item {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: all var(--transition);
        }
        .faq-item:hover {
            border-color: rgba(37, 99, 235, 0.3);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 18px 24px;
            cursor: pointer;
            font-weight: 600;
            font-size: 0.95rem;
            color: var(--text-primary);
            gap: 12px;
            user-select: none;
        }
        .faq-question .faq-toggle {
            font-size: 1.2rem;
            color: var(--text-muted);
            transition: transform var(--transition);
            flex-shrink: 0;
        }
        .faq-item.open .faq-question .faq-toggle {
            transform: rotate(45deg);
            color: var(--primary);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height var(--transition);
            padding: 0 24px;
        }
        .faq-item.open .faq-answer {
            max-height: 200px;
            padding-bottom: 18px;
        }
        .faq-answer p {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        /* ==================== 用户评论区 ==================== */
        .comments-section {
            background: #fff;
        }
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .comment-card {
            background: var(--gray-50);
            border-radius: var(--radius-lg);
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: all var(--transition);
        }
        .comment-card:hover {
            box-shadow: var(--shadow-md);
            border-color: rgba(37, 99, 235, 0.2);
        }
        .comment-header {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 12px;
        }
        .comment-avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            color: #fff;
            flex-shrink: 0;
        }
        .avatar-1 {
            background: #2563eb;
        }
        .avatar-2 {
            background: #7c3aed;
        }
        .avatar-3 {
            background: #10b981;
        }
        .avatar-4 {
            background: #f59e0b;
        }
        .avatar-5 {
            background: #ec4899;
        }
        .avatar-6 {
            background: #06b6d4;
        }
        .comment-user {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
        }
        .comment-id {
            font-size: 0.78rem;
            color: var(--text-muted);
        }
        .comment-text {
            font-size: 0.88rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }
        .comment-stars {
            color: #f59e0b;
            font-size: 0.85rem;
            margin-bottom: 8px;
            letter-spacing: 2px;
        }

        /* ==================== 精选热点 ==================== */
        .hot-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        .hot-card {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: all var(--transition);
            cursor: pointer;
        }
        .hot-card:hover {
            box-shadow: var(--shadow-lg);
            transform: translateY(-4px);
        }
        .hot-img {
            aspect-ratio: 16/10;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2.8rem;
            background: linear-gradient(135deg, #fef3c7 0%, #dbeafe 50%, #ede9fe 100%);
        }
        .hot-img .watermark {
            position: absolute;
            bottom: 8px;
            right: 10px;
            font-size: 0.65rem;
            color: rgba(0, 0, 0, 0.35);
            font-weight: 500;
            letter-spacing: 0.03em;
        }
        .hot-body {
            padding: 18px 20px;
        }
        .hot-body h3 {
            font-size: 0.95rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 6px;
            line-height: 1.45;
        }
        .hot-body p {
            font-size: 0.82rem;
            color: var(--text-secondary);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* ==================== 加入我们 CTA ==================== */
        .cta-section {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, #ec4899 100%);
            padding: 80px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }
        .cta-section::before {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 60%),
                radial-gradient(circle at 80% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 60%);
        }
        .cta-content {
            position: relative;
            z-index: 1;
        }
        .cta-content h2 {
            font-size: 2.6rem;
            font-weight: 700;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.02em;
        }
        .cta-content p {
            font-size: 1.1rem;
            color: rgba(255, 255, 255, 0.88);
            margin-bottom: 32px;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .btn-white {
            background: #fff;
            color: var(--primary);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.15);
        }
        .btn-white:hover {
            color: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 32px rgba(0, 0, 0, 0.2);
        }
        .btn-ghost-white {
            background: transparent;
            color: #fff;
            border: 2px solid rgba(255, 255, 255, 0.7);
        }
        .btn-ghost-white:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            transform: translateY(-2px);
        }

        /* ==================== 页脚 ==================== */
        .site-footer {
            background: var(--dark);
            color: rgba(255, 255, 255, 0.8);
            padding: 60px 0 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1.2fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .footer-logo img {
            height: 36px;
            border-radius: var(--radius-sm);
        }
        .footer-logo span {
            font-size: 1.2rem;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.8;
            margin-bottom: 20px;
        }
        .footer-col h4 {
            font-size: 1rem;
            font-weight: 600;
            color: #fff;
            margin-bottom: 16px;
        }
        .footer-col ul li {
            margin-bottom: 10px;
        }
        .footer-col ul li a {
            color: rgba(255, 255, 255, 0.6);
            font-size: 0.88rem;
            transition: color var(--transition);
        }
        .footer-col ul li a:hover {
            color: #fff;
        }
        .footer-contact li {
            display: flex;
            gap: 10px;
            font-size: 0.88rem;
            color: rgba(255, 255, 255, 0.6);
            margin-bottom: 10px;
            align-items: flex-start;
        }
        .footer-contact li span {
            color: rgba(255, 255, 255, 0.4);
            flex-shrink: 0;
        }
        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 0.82rem;
            color: rgba(255, 255, 255, 0.5);
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }
        .footer-bottom-links {
            display: flex;
            gap: 20px;
            flex-wrap: wrap;
        }
        .footer-bottom-links a {
            color: rgba(255, 255, 255, 0.5);
            font-size: 0.82rem;
            transition: color var(--transition);
        }
        .footer-bottom-links a:hover {
            color: #fff;
        }
        .footer-app-btns {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }
        .app-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: var(--radius-sm);
            font-size: 0.82rem;
            font-weight: 600;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: #fff;
            transition: all var(--transition);
        }
        .app-btn:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.5);
        }

        /* ==================== 响应式设计 ==================== */
        @media (max-width: 1024px) {
            .features-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .news-grid,
            .hot-grid,
            .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .partners-grid {
                grid-template-columns: repeat(3, 1fr);
            }
            .about-wrapper {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
            .hero-slide .slide-content h1 {
                font-size: 2.2rem;
            }
        }

        @media (max-width: 768px) {
            :root {
                --header-height: 64px;
            }
            .section {
                padding: 48px 0;
            }
            .section-header h2 {
                font-size: 1.7rem;
            }
            .header-nav {
                display: none;
                position: absolute;
                top: var(--header-height);
                left: 0;
                right: 0;
                background: #fff;
                flex-direction: column;
                padding: 16px 24px;
                box-shadow: var(--shadow-lg);
                border-bottom: 1px solid var(--border-color);
                gap: 4px;
            }
            .header-nav.open {
                display: flex;
            }
            .header-nav a {
                width: 100%;
                padding: 12px 16px;
                text-align: left;
            }
            .header-search {
                display: none;
            }
            .hamburger {
                display: flex;
            }
            .hero-banner {
                height: 420px;
            }
            .hero-slide .slide-content h1 {
                font-size: 1.8rem;
            }
            .hero-slide .slide-content p {
                font-size: 0.95rem;
            }
            .hero-arrow {
                width: 36px;
                height: 36px;
                font-size: 1rem;
            }
            .hero-arrow.prev {
                left: 8px;
            }
            .hero-arrow.next {
                right: 8px;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .stat-number {
                font-size: 2rem;
            }
            .features-grid,
            .news-grid,
            .hot-grid,
            .comments-grid,
            .services-grid,
            .partners-grid {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 16px;
            }
            .timeline-item {
                width: 100%;
                padding-left: 48px !important;
                text-align: left !important;
            }
            .timeline-item:nth-child(odd) .timeline-dot,
            .timeline-item:nth-child(even) .timeline-dot {
                left: 8px;
                right: auto;
            }
            .timeline-item:nth-child(even) {
                left: 0;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                justify-content: center;
            }
            .footer-bottom-links {
                justify-content: center;
            }
            .cta-content h2 {
                font-size: 1.9rem;
            }
            .cta-content p {
                font-size: 0.95rem;
            }
        }

        @media (max-width: 480px) {
            .hero-banner {
                height: 360px;
            }
            .hero-slide .slide-content h1 {
                font-size: 1.5rem;
            }
            .stats-grid {
                grid-template-columns: 1fr 1fr;
                gap: 12px;
            }
            .stat-number {
                font-size: 1.6rem;
            }
            .stat-number span {
                font-size: 1.2rem;
            }
            .btn {
                padding: 10px 20px;
                font-size: 0.9rem;
            }
        }

.news-img img,
.hot-img img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.news-img, .hot-img { overflow: hidden; }
.show-wrap { padding: 120px 0 80px; }
.show-card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius-lg); padding: 32px; box-shadow: var(--shadow-sm); }
.show-card h1 { font-size: 1.8rem; margin-bottom: 12px; }
.show-meta { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 24px; }
.show-body { line-height: 1.9; color: var(--text-secondary); }
.show-body img { max-width: 100%; border-radius: var(--radius-md); margin: 16px 0; }
.list-page .news-grid { margin-top: 24px; }