:root {
            --primary: #0052cc;
            --primary-hover: #0043a4;
            --primary-light: #e6f0ff;
            --accent: #00d2ff;
            --accent-gold: #ffab00;
            --text-main: #0f172a;
            --text-muted: #475569;
            --bg-light: #f8fafc;
            --bg-white: #ffffff;
            --border-color: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
            --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.04);
            --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.03);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            color: var(--text-main);
            background-color: var(--bg-light);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
        }

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

        a:hover {
            color: var(--primary-hover);
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        /* 头部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            transition: var(--transition);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 70px;
        }

        .logo-area {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .ai-page-logo {
            height: 40px;
            width: auto;
        }

        .brand-name {
            font-size: 20px;
            font-weight: 700;
            color: var(--primary);
            letter-spacing: 0.5px;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 20px;
            list-style: none;
        }

        .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-muted);
            padding: 8px 12px;
            border-radius: 6px;
        }

        .nav-link:hover, .nav-link.active {
            color: var(--primary);
            background-color: var(--primary-light);
        }

        .nav-btn-group {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            transition: var(--transition);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background-color: var(--primary);
            color: var(--bg-white) !important;
        }

        .btn-primary:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0, 82, 204, 0.2);
        }

        .btn-outline {
            background-color: transparent;
            border: 1.5px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background-color: var(--primary-light);
            transform: translateY(-2px);
        }

        /* 移动端菜单按钮 */
        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 6px;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
        }

        .menu-toggle span {
            display: block;
            width: 24px;
            height: 2px;
            background-color: var(--text-main);
            transition: var(--transition);
        }

        /* 首屏 Hero 区域 (无图片) */
        .hero-section {
            padding-top: 150px;
            padding-bottom: 90px;
            background: radial-gradient(circle at 80% 20%, #e0ebff 0%, #f8fafc 100%);
            border-bottom: 1px solid var(--border-color);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-image: linear-gradient(rgba(0, 82, 204, 0.03) 1px, transparent 1px), linear-gradient(90deg, rgba(0, 82, 204, 0.03) 1px, transparent 1px);
            background-size: 30px 30px;
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            text-align: center;
            max-width: 800px;
            margin: 0 auto;
        }

        .hero-tag {
            display: inline-block;
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 24px;
            border: 1px solid rgba(0, 82, 204, 0.15);
            letter-spacing: 1px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.05); }
            100% { transform: scale(1); }
        }

        .hero-title {
            font-size: 42px;
            line-height: 1.25;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }

        .hero-title span {
            background: linear-gradient(135deg, var(--primary) 0%, #00a3ff 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 36px;
            line-height: 1.7;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 40px;
        }

        .hero-badge-group {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 14px;
            color: var(--text-muted);
            border-top: 1px dashed var(--border-color);
            padding-top: 30px;
        }

        .hero-badge-item {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .hero-badge-item svg {
            color: var(--primary);
        }

        /* 通用区块样式 */
        section {
            padding: 85px 0;
            border-bottom: 1px solid var(--border-color);
            background-color: var(--bg-white);
        }

        .bg-light-sec {
            background-color: var(--bg-light);
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 55px auto;
        }

        .section-subtitle {
            font-size: 13px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 16px;
        }

        .section-desc {
            font-size: 16px;
            color: var(--text-muted);
        }

        /* 关于我们 & 数据指标 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--primary);
        }

        .about-text p {
            margin-bottom: 20px;
            color: var(--text-muted);
            font-size: 15px;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }

        .stat-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: 500;
        }

        /* AIGC 服务能力卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 32px;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary);
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background-color: var(--primary);
            opacity: 0;
            transition: var(--transition);
        }

        .service-card:hover::before {
            opacity: 1;
        }

        .service-icon {
            width: 54px;
            height: 54px;
            background-color: var(--primary-light);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 24px;
        }

        .service-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-pill {
            background-color: var(--bg-light);
            color: var(--text-muted);
            font-size: 12px;
            padding: 4px 10px;
            border-radius: 4px;
            border: 1px solid var(--border-color);
        }

        /* 流程步骤 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-step {
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: var(--bg-white);
            font-size: 20px;
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            box-shadow: 0 0 0 6px var(--primary-light);
        }

        .step-title {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 行业解决方案与全国服务网络 */
        .network-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: center;
        }

        .solution-list {
            list-style: none;
        }

        .solution-item {
            display: flex;
            gap: 16px;
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .solution-item:last-child {
            border-bottom: none;
        }

        .solution-icon {
            color: var(--primary);
            flex-shrink: 0;
            margin-top: 3px;
        }

        .solution-text h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .solution-text p {
            font-size: 13px;
            color: var(--text-muted);
        }

        .map-wrapper {
            background-color: var(--primary-light);
            border-radius: 16px;
            padding: 40px;
            border: 1px dashed var(--primary);
            text-align: center;
        }

        .map-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--primary);
            margin-bottom: 16px;
        }

        .map-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        .network-badges {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .network-badge {
            background-color: var(--bg-white);
            color: var(--primary);
            border: 1px solid rgba(0, 82, 204, 0.2);
            padding: 6px 14px;
            font-size: 12px;
            font-weight: 600;
            border-radius: 6px;
        }

        /* 对比评测及Token比价 */
        .rating-box {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            margin-bottom: 40px;
            box-shadow: var(--shadow-sm);
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 24px;
        }

        .rating-summary {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .rating-num {
            font-size: 48px;
            font-weight: 800;
            color: var(--primary);
            line-height: 1;
        }

        .rating-stars {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .stars {
            color: var(--accent-gold);
            font-size: 22px;
        }

        .rating-text {
            font-size: 13px;
            color: var(--text-muted);
        }

        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            background-color: var(--bg-white);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            font-size: 14px;
        }

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid var(--border-color);
        }

        th {
            background-color: var(--bg-light);
            font-weight: 700;
            color: var(--text-main);
        }

        tr:last-child td {
            border-bottom: none;
        }

        .highlight-cell {
            background-color: var(--primary-light);
            font-weight: 600;
            color: var(--primary);
        }

        /* 客户案例中心 (包含横版/方版素材图及宣传图) */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .gallery-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

        .gallery-card:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-md);
        }

        .gallery-img-wrapper {
            position: relative;
            overflow: hidden;
            background-color: #eaeaea;
            aspect-ratio: 16/10;
        }

        .gallery-img-wrapper.square {
            aspect-ratio: 1/1;
        }

        .gallery-img-wrapper img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: var(--transition);
        }

        .gallery-card:hover .gallery-img-wrapper img {
            transform: scale(1.05);
        }

        .gallery-info {
            padding: 20px;
        }

        .gallery-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .gallery-desc {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 培训版块 */
        .training-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .training-list {
            display: grid;
            grid-template-columns: 1fr;
            gap: 16px;
        }

        .training-item {
            background-color: var(--bg-white);
            border: 1.5px solid var(--border-color);
            border-radius: 12px;
            padding: 20px;
            display: flex;
            align-items: flex-start;
            gap: 16px;
            transition: var(--transition);
        }

        .training-item:hover {
            border-color: var(--primary);
            box-shadow: var(--shadow-sm);
        }

        .training-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            width: 36px;
            height: 36px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .training-info h4 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 6px;
        }

        .training-info p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 加盟代理 */
        .agent-card {
            background: linear-gradient(135deg, #0052cc 0%, #002e7a 100%);
            color: var(--bg-white);
            border-radius: 20px;
            padding: 50px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .agent-card h3 {
            font-size: 30px;
            font-weight: 800;
            margin-bottom: 16px;
        }

        .agent-card p {
            font-size: 16px;
            opacity: 0.9;
            max-width: 700px;
            margin: 0 auto 30px auto;
        }

        .agent-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 20px;
            margin-bottom: 40px;
        }

        .agent-benefit {
            background-color: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(5px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 24px;
            border-radius: 12px;
        }

        .agent-benefit-val {
            font-size: 24px;
            font-weight: 700;
            color: var(--accent);
            margin-bottom: 8px;
        }

        .agent-benefit-desc {
            font-size: 13px;
            opacity: 0.8;
        }

        /* 用户评论 */
        .reviews-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .review-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .review-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-style: italic;
        }

        .review-user {
            display: flex;
            align-items: center;
            gap: 12px;
            border-top: 1px solid var(--border-color);
            padding-top: 16px;
        }

        .user-avatar-text {
            width: 40px;
            height: 40px;
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 14px;
        }

        .user-meta h5 {
            font-size: 14px;
            font-weight: 700;
        }

        .user-meta span {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 帮助中心 & FAQ & 自助排查 */
        .faq-tabs {
            display: flex;
            justify-content: center;
            gap: 12px;
            margin-bottom: 30px;
        }

        .faq-tab-btn {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 10px 24px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-tab-btn.active, .faq-tab-btn:hover {
            background-color: var(--primary);
            color: var(--bg-white);
            border-color: var(--primary);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto 50px auto;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .faq-item {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 18px 24px;
            font-weight: 600;
            font-size: 15px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: var(--bg-light);
            border-top: 0 solid var(--border-color);
        }

        .faq-answer-content {
            padding: 18px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        .faq-item.active {
            border-color: var(--primary);
        }

        .faq-item.active .faq-answer {
            max-height: 1000px;
            border-top: 1px solid var(--border-color);
            transition: max-height 0.3s cubic-bezier(1, 0, 1, 0);
        }

        .faq-question svg {
            transition: var(--transition);
        }

        .faq-item.active .faq-question svg {
            transform: rotate(180deg);
            color: var(--primary);
        }

        /* 自助排查与术语百科网格 */
        .support-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            max-width: 1000px;
            margin: 0 auto;
        }

        .support-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            padding: 24px;
        }

        .support-card h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 16px;
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--primary);
            border-bottom: 1px solid var(--border-color);
            padding-bottom: 12px;
        }

        .support-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .support-list-item h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .support-list-item p {
            font-size: 13px;
            color: var(--text-muted);
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .news-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: var(--transition);
        }

        .news-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-md);
            border-color: var(--primary);
        }

        .news-info {
            padding: 20px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            flex-grow: 1;
        }

        .news-title {
            font-size: 15px;
            font-weight: 700;
            line-height: 1.4;
            margin-bottom: 12px;
            color: var(--text-main);
        }

        .news-title a {
            color: inherit;
        }

        .news-title a:hover {
            color: var(--primary);
        }

        .news-footer {
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-size: 12px;
            color: var(--text-muted);
            border-top: 1px solid var(--border-color);
            padding-top: 12px;
        }

        /* 需求表单与联系我们 */
        .contact-grid {
            display: grid;
            grid-template-columns: 1.2fr 1fr;
            gap: 40px;
        }

        .form-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 36px;
            box-shadow: var(--shadow-sm);
        }

        .form-title {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .form-group {
            margin-bottom: 18px;
        }

        .form-label {
            display: block;
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 6px;
        }

        .form-control {
            width: 100%;
            padding: 10px 14px;
            border: 1.5px solid var(--border-color);
            border-radius: 8px;
            font-size: 14px;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 3px var(--primary-light);
        }

        .info-card {
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-header {
            margin-bottom: 24px;
        }

        .info-header h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .contact-details {
            display: flex;
            flex-direction: column;
            gap: 16px;
            margin-bottom: 24px;
        }

        .contact-detail-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
        }

        .contact-detail-item svg {
            color: var(--primary);
        }

        .qr-area {
            display: flex;
            align-items: center;
            gap: 16px;
            background-color: var(--bg-light);
            border-radius: 12px;
            padding: 16px;
            border: 1px solid var(--border-color);
        }

        .qr-code img {
            width: 80px;
            height: 80px;
            border-radius: 4px;
        }

        .qr-text h4 {
            font-size: 14px;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .qr-text p {
            font-size: 12px;
            color: var(--text-muted);
        }

        /* 友情链接 */
        .friendship-links {
            background-color: var(--bg-light);
            padding: 24px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .friendship-wrapper {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 16px;
            font-size: 13px;
        }

        .friendship-title {
            font-weight: 700;
            color: var(--text-muted);
        }

        .friendship-wrapper a {
            color: var(--text-muted);
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 4px 12px;
            border-radius: 4px;
        }

        .friendship-wrapper a:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* 页脚 */
        footer {
            background-color: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h4 {
            color: var(--bg-white);
            font-size: 20px;
            margin-bottom: 16px;
        }

        .footer-brand p {
            margin-bottom: 20px;
            line-height: 1.6;
        }

        .footer-links h5 {
            color: var(--bg-white);
            font-size: 15px;
            margin-bottom: 20px;
        }

        .footer-links ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .footer-links a {
            color: #94a3b8;
        }

        .footer-links a:hover {
            color: var(--bg-white);
        }

        .footer-bottom {
            border-top: 1px solid #334155;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
            font-size: 12px;
        }

        /* 侧边悬浮窗口 */
        .floating-action {
            position: fixed;
            right: 20px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 48px;
            height: 48px;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            box-shadow: var(--shadow-md);
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            background-color: var(--primary);
            color: var(--bg-white);
            border-color: var(--primary);
            transform: translateY(-2px);
        }

        .float-btn-qr {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--shadow-lg);
            display: none;
            width: 140px;
            text-align: center;
        }

        .float-btn:hover .float-btn-qr {
            display: block;
        }

        .float-btn-qr img {
            width: 100%;
            margin-bottom: 8px;
        }

        .float-btn-qr span {
            font-size: 12px;
            color: var(--text-main);
            white-space: nowrap;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .hero-title {
                font-size: 34px;
            }
            .about-grid, .network-grid, .training-grid, .contact-grid {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
            }
            .gallery-grid {
                grid-template-columns: 1fr 1fr;
            }
            .agent-grid {
                grid-template-columns: 1fr;
            }
            .reviews-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: var(--bg-white);
                border-bottom: 1px solid var(--border-color);
                padding: 20px;
                gap: 12px;
                box-shadow: var(--shadow-md);
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .menu-toggle.active span:nth-child(1) {
                transform: translateY(8px) rotate(45deg);
            }

            .menu-toggle.active span:nth-child(2) {
                opacity: 0;
            }

            .menu-toggle.active span:nth-child(3) {
                transform: translateY(-8px) rotate(-45deg);
            }

            .gallery-grid {
                grid-template-columns: 1fr;
            }

            .support-grid {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }