:root {
            --primary: #5266ff;
            --primary-grad: linear-gradient(135deg, #FF5E62 0%, #FF9966 30%, #4E65FF 70%, #92EFFD 100%);
            --rainbow-1: #FF5E62;
            --rainbow-2: #FF9966;
            --rainbow-3: #20BF55;
            --rainbow-4: #01BAEF;
            --rainbow-5: #8A2387;
            --text-dark: #2c3e50;
            --text-muted: #64748b;
            --bg-light: #f8fafc;
            --bg-card: #ffffff;
            --border-color: #e2e8f0;
            --container-width: 1200px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* 基础重置 */
        *, *::before, *::after {
            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;
            background-color: var(--bg-light);
            color: var(--text-dark);
            line-height: 1.6;
        }

        body {
            overflow-x: hidden;
            display: flex;
            flex-direction: column;
            min-height: 100vh;
        }

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

        /* 彩虹线条条装饰 */
        .rainbow-bar {
            height: 4px;
            background: var(--primary-grad);
            width: 100%;
            position: fixed;
            top: 0;
            left: 0;
            z-index: 1001;
        }

        /* 导航栏 */
        header.nav-header {
            position: sticky;
            top: 4px;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--text-dark);
            font-weight: 700;
            font-size: 20px;
        }

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

        .logo-text {
            background: linear-gradient(135deg, var(--rainbow-1), var(--rainbow-5));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            font-weight: 800;
        }

        .nav-menu {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }

        .nav-link {
            text-decoration: none;
            color: var(--text-muted);
            font-size: 15px;
            font-weight: 500;
            transition: var(--transition);
            position: relative;
            padding: 4px 0;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary-grad);
            transition: var(--transition);
        }

        .nav-link:hover::after {
            width: 100%;
        }

        .nav-link:hover {
            color: var(--text-dark);
        }

        .nav-btn {
            background: var(--primary-grad);
            color: #fff;
            padding: 10px 22px;
            border-radius: 99px;
            text-decoration: none;
            font-size: 14px;
            font-weight: 600;
            box-shadow: 0 4px 15px rgba(82, 102, 255, 0.2);
            transition: var(--transition);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(82, 102, 255, 0.4);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            font-size: 24px;
            cursor: pointer;
            color: var(--text-dark);
        }

        /* 统一的主题章节设计 */
        section {
            padding: 90px 0;
            border-bottom: 1px solid var(--border-color);
            background: var(--bg-card);
            position: relative;
        }

        section:nth-child(even) {
            background: var(--bg-light);
        }

        .section-header {
            text-align: center;
            max-width: 800px;
            margin: 0 auto 60px auto;
        }

        .section-badge {
            display: inline-block;
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 600;
            border-radius: 99px;
            margin-bottom: 16px;
            background: rgba(82, 102, 255, 0.08);
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1px;
            border: 1px solid rgba(82, 102, 255, 0.15);
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            margin-bottom: 16px;
            color: var(--text-dark);
            letter-spacing: -0.5px;
        }

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

        /* 首屏 Hero 区 (绝对无图) */
        .hero-section {
            background: radial-gradient(circle at 10% 20%, rgba(255, 94, 98, 0.03) 0%, rgba(78, 101, 255, 0.03) 90%), #ffffff;
            padding: 120px 0 100px 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 400px;
            height: 400px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 153, 102, 0.15) 0%, transparent 70%);
            filter: blur(40px);
            pointer-events: none;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 500px;
            height: 500px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(146, 239, 253, 0.2) 0%, transparent 70%);
            filter: blur(50px);
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 8px 16px;
            border-radius: 99px;
            background: rgba(255, 94, 98, 0.06);
            border: 1px solid rgba(255, 94, 98, 0.2);
            color: var(--rainbow-1);
            font-weight: 600;
            font-size: 14px;
            margin-bottom: 24px;
            animation: pulse 2s infinite;
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.03); }
            100% { transform: scale(1); }
        }

        .hero-title {
            font-size: 52px;
            line-height: 1.2;
            font-weight: 850;
            margin-bottom: 24px;
            letter-spacing: -1px;
            background: linear-gradient(135deg, #FF5E62 10%, #FF9966 30%, #4E65FF 60%, #8A2387 90%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 20px;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 16px;
            margin-bottom: 60px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background: var(--primary-grad);
            color: white;
            padding: 16px 36px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            box-shadow: 0 10px 25px rgba(78, 101, 255, 0.25);
            transition: var(--transition);
            border: none;
            cursor: pointer;
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 30px rgba(78, 101, 255, 0.4);
        }

        .btn-secondary {
            background: #ffffff;
            color: var(--text-dark);
            padding: 16px 36px;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            text-decoration: none;
            border: 1px solid var(--border-color);
            transition: var(--transition);
            box-shadow: 0 4px 10px rgba(0, 0, 0, 0.02);
        }

        .btn-secondary:hover {
            background: var(--bg-light);
            border-color: var(--text-muted);
            transform: translateY(-3px);
        }

        /* 平台聚合标签云 */
        .hero-tags-box {
            max-width: 900px;
            margin: 0 auto;
            padding-top: 30px;
            border-top: 1px solid rgba(0,0,0,0.06);
        }

        .hero-tags-title {
            font-size: 14px;
            text-transform: uppercase;
            letter-spacing: 2px;
            color: var(--text-muted);
            margin-bottom: 20px;
            font-weight: 700;
        }

        .hero-tags {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 10px;
        }

        .hero-tag {
            font-size: 13px;
            padding: 6px 14px;
            background: #f1f5f9;
            border-radius: 8px;
            color: var(--text-dark);
            font-weight: 500;
            border: 1px solid rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .hero-tag:hover {
            background: #fff;
            transform: translateY(-2px);
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
            border-color: var(--primary);
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 40px;
        }

        .stat-card {
            background: #fff;
            border-radius: 16px;
            padding: 30px 24px;
            text-align: center;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.02);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

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

        .stat-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 30px rgba(0,0,0,0.06);
        }

        .stat-number {
            font-size: 40px;
            font-weight: 850;
            background: linear-gradient(135deg, var(--rainbow-1), var(--rainbow-5));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            line-height: 1.2;
            margin-bottom: 8px;
        }

        .stat-label {
            font-size: 15px;
            color: var(--text-dark);
            font-weight: 600;
            margin-bottom: 4px;
        }

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

        /* 关于我们 */
        .about-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 48px;
            align-items: center;
        }

        .about-content h3 {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 20px;
        }

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

        .about-features {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 30px;
        }

        .about-feature-item {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
        }

        .about-feature-item svg {
            color: var(--rainbow-3);
            flex-shrink: 0;
        }

        .about-card-box {
            background: #fff;
            padding: 30px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.04);
        }

        .company-meta-item {
            margin-bottom: 20px;
        }

        .company-meta-item:last-child {
            margin-bottom: 0;
        }

        .company-meta-label {
            font-size: 12px;
            color: var(--text-muted);
            text-transform: uppercase;
            font-weight: 600;
        }

        .company-meta-val {
            font-size: 16px;
            color: var(--text-dark);
            font-weight: 700;
        }

        /* 服务体系 & 流程 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: #fff;
            border-radius: 16px;
            padding: 32px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.02);
            transition: var(--transition);
        }

        .service-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.06);
            border-color: rgba(82, 102, 255, 0.3);
        }

        .service-icon-box {
            width: 54px;
            height: 54px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: #fff;
            font-weight: bold;
        }

        .service-title {
            font-size: 19px;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .service-desc {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .service-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }

        .service-sub-tag {
            font-size: 11px;
            padding: 3px 8px;
            background: var(--bg-light);
            border-radius: 4px;
            color: var(--text-muted);
        }

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

        .process-step {
            background: #fff;
            padding: 30px 24px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 36px;
            height: 36px;
            border-radius: 50%;
            background: var(--primary-grad);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 16px;
            margin-bottom: 20px;
        }

        .step-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        /* 解决方案与服务网络 */
        .solutions-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .solution-card {
            border-radius: 16px;
            background: #fff;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .solution-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        .solution-img-container {
            height: 200px;
            overflow: hidden;
            background: #f1f5f9;
        }

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

        .solution-card:hover .solution-img-container img {
            transform: scale(1.05);
        }

        .solution-body {
            padding: 24px;
        }

        .solution-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .solution-text {
            font-size: 14px;
            color: var(--text-muted);
        }

        /* 地图服务网络 */
        .map-section-layout {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 40px;
            align-items: center;
        }

        .map-mock {
            background: #fff;
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 30px rgba(0,0,0,0.02);
            text-align: center;
        }

        .map-svg-placeholder {
            width: 100%;
            height: auto;
            max-height: 350px;
        }

        .map-dots-list {
            list-style: none;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .map-dot-item {
            background: #fff;
            padding: 16px;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .dot-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--rainbow-3);
            box-shadow: 0 0 8px var(--rainbow-3);
        }

        .dot-region {
            font-size: 14px;
            font-weight: 700;
        }

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

        /* 案例与软件技术 */
        .cases-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .case-card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.06);
        }

        .case-img {
            height: 220px;
            width: 100%;
            object-fit: cover;
            background: #f1f5f9;
        }

        .case-info {
            padding: 24px;
        }

        .case-tag {
            font-size: 11px;
            font-weight: 700;
            color: var(--primary);
            text-transform: uppercase;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 17px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .case-metrics {
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid #f1f5f9;
            display: flex;
            justify-content: space-between;
            font-size: 13px;
        }

        .metric-val {
            font-weight: 700;
            color: var(--rainbow-1);
        }

        /* 评测与对比表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 20px rgba(0,0,0,0.02);
            background: #fff;
        }

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

        .compare-table th, .compare-table td {
            padding: 16px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .compare-table th {
            background: #f8fafc;
            font-weight: 700;
            color: var(--text-dark);
        }

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

        .compare-table td strong {
            color: var(--primary);
        }

        .compare-highlight {
            background: rgba(82, 102, 255, 0.02);
            font-weight: 600;
        }

        /* 评分横幅 */
        .rating-banner {
            margin-top: 30px;
            background: linear-gradient(135deg, rgba(255,94,98,0.05), rgba(78,101,255,0.05));
            border: 1px solid rgba(82, 102, 255, 0.15);
            border-radius: 12px;
            padding: 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-info {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .rating-stars {
            color: #f59e0b;
            font-size: 20px;
        }

        .rating-score {
            font-size: 24px;
            font-weight: 850;
            color: var(--text-dark);
        }

        .rating-score span {
            font-size: 14px;
            color: var(--text-muted);
            font-weight: normal;
        }

        /* Token 比价 */
        .token-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .token-card {
            background: #fff;
            border-radius: 16px;
            padding: 24px;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .token-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 24px rgba(0,0,0,0.04);
            border-color: rgba(82,102,255,0.25);
        }

        .token-model-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 12px;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .token-badge {
            font-size: 11px;
            padding: 2px 6px;
            border-radius: 4px;
            background: rgba(32, 191, 85, 0.1);
            color: var(--rainbow-3);
        }

        .token-prices {
            font-size: 13px;
            color: var(--text-muted);
            margin-bottom: 16px;
        }

        .token-price-row {
            display: flex;
            justify-content: space-between;
            margin-bottom: 6px;
        }

        .token-price-val {
            font-weight: 700;
            color: var(--text-dark);
        }

        /* 培训板块 */
        .training-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 20px;
        }

        .training-card {
            background: #fff;
            border-radius: 12px;
            padding: 24px 20px;
            text-align: center;
            border: 1px solid var(--border-color);
            transition: var(--transition);
        }

        .training-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 8px 20px rgba(0,0,0,0.04);
            border-color: var(--primary);
        }

        .training-icon {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: rgba(82, 102, 255, 0.06);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px auto;
            font-weight: 700;
        }

        .training-title {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 8px;
            color: var(--text-dark);
        }

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

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

        .review-card {
            background: #fff;
            border-radius: 16px;
            padding: 28px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.01);
            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;
        }

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

        .user-info-name {
            font-size: 14px;
            font-weight: 700;
            color: var(--text-dark);
        }

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

        /* FAQ 折叠面板 */
        .faq-accordion {
            max-width: 850px;
            margin: 0 auto;
        }

        .faq-item {
            background: #fff;
            border-radius: 10px;
            margin-bottom: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            width: 100%;
            text-align: left;
            padding: 18px 24px;
            background: none;
            border: none;
            font-size: 16px;
            font-weight: 700;
            color: var(--text-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: #f8fafc;
        }

        .faq-answer-inner {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.7;
        }

        .faq-icon-indicator {
            font-size: 18px;
            font-weight: normal;
            transition: transform 0.3s;
        }

        .faq-item.active .faq-icon-indicator {
            transform: rotate(45deg);
        }

        .faq-item.active .faq-answer {
            max-height: 250px;
        }

        /* 术语与资讯 */
        .info-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 40px;
        }

        .wiki-card {
            background: #fff;
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

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

        .wiki-item {
            margin-bottom: 20px;
        }

        .wiki-item:last-child {
            margin-bottom: 0;
        }

        .wiki-term {
            font-size: 15px;
            font-weight: 700;
            color: var(--text-dark);
            margin-bottom: 6px;
        }

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

        .articles-card {
            background: #fff;
            border-radius: 16px;
            padding: 30px;
            border: 1px solid var(--border-color);
        }

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

        .article-item {
            padding: 16px 0;
            border-bottom: 1px solid var(--border-color);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .article-item:last-child {
            border-bottom: none;
            padding-bottom: 0;
        }

        .article-title-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
            max-width: 80%;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .article-title-link:hover {
            color: var(--primary);
        }

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

        /* 表单与联系我们 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
        }

        .contact-form-box {
            background: #fff;
            border-radius: 20px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 35px rgba(0,0,0,0.03);
        }

        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
            margin-top: 24px;
        }

        .form-full {
            grid-column: span 2;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 6px;
        }

        .form-label {
            font-size: 13px;
            font-weight: 700;
            color: var(--text-dark);
        }

        .form-control {
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
            font-size: 14px;
            background: var(--bg-light);
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(82, 102, 255, 0.15);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 100px;
        }

        .contact-info-box {
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .info-card-wrap {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

        .info-block {
            background: #fff;
            padding: 24px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
            display: flex;
            align-items: flex-start;
            gap: 16px;
        }

        .info-block-icon {
            width: 40px;
            height: 40px;
            border-radius: 10px;
            background: rgba(82, 102, 255, 0.08);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            flex-shrink: 0;
        }

        .info-block-text h4 {
            font-size: 15px;
            font-weight: 700;
            margin-bottom: 4px;
        }

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

        .qr-codes-wrap {
            margin-top: 30px;
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            text-align: center;
        }

        .qr-box {
            background: #fff;
            border-radius: 16px;
            padding: 20px;
            border: 1px solid var(--border-color);
        }

        .qr-box img {
            width: 100px;
            height: 100px;
            object-fit: contain;
            margin-bottom: 10px;
        }

        .qr-label {
            font-size: 12px;
            font-weight: 700;
            color: var(--text-dark);
        }

        /* 侧边浮动导航与客服 */
        .floating-widget {
            position: fixed;
            right: 24px;
            bottom: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: 0 4px 20px rgba(0,0,0,0.1);
            border: 1px solid var(--border-color);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            position: relative;
            transition: var(--transition);
        }

        .float-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 6px 25px rgba(0,0,0,0.15);
        }

        .float-kefu-pop {
            position: absolute;
            right: 60px;
            bottom: 0;
            background: #fff;
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 30px rgba(0,0,0,0.1);
            border-radius: 12px;
            padding: 16px;
            display: none;
            width: 160px;
            text-align: center;
        }

        .float-kefu-pop img {
            width: 120px;
            height: 120px;
            object-fit: cover;
            margin-bottom: 8px;
        }

        .float-kefu-pop span {
            font-size: 12px;
            color: var(--text-dark);
            font-weight: 700;
        }

        .float-btn:hover .float-kefu-pop {
            display: block;
        }

        #back-to-top {
            opacity: 0;
            pointer-events: none;
            background: var(--primary-grad);
            color: #fff;
            border: none;
        }

        #back-to-top.visible {
            opacity: 1;
            pointer-events: auto;
        }

        /* 页脚与友情链接 */
        footer {
            background: #0f172a;
            color: #94a3b8;
            padding: 60px 0 30px 0;
            font-size: 14px;
            border-top: 1px solid rgba(255,255,255,0.05);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1.5fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-col h5 {
            color: #fff;
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 20px;
        }

        .footer-col p {
            line-height: 1.8;
            font-size: 13px;
        }

        .footer-links {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-links a {
            color: #94a3b8;
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: #fff;
        }

        .friendly-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }

        .friendly-links a {
            color: #64748b;
            text-decoration: none;
            font-size: 13px;
            transition: var(--transition);
            background: rgba(255,255,255,0.03);
            padding: 4px 10px;
            border-radius: 4px;
        }

        .friendly-links a:hover {
            color: #fff;
            background: rgba(255,255,255,0.08);
        }

        .footer-bottom {
            padding-top: 30px;
            border-top: 1px solid rgba(255,255,255,0.05);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .footer-bottom p {
            font-size: 12px;
        }

        .ai-page-home-link {
            color: var(--primary);
            text-decoration: none;
            font-weight: 700;
        }

        .ai-page-home-link:hover {
            text-decoration: underline;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .services-grid, .solutions-grid, .cases-grid, .reviews-grid, .token-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .training-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: #fff;
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
                border-top: 1px solid var(--border-color);
            }
            
            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: block;
            }

            .hero-title {
                font-size: 36px;
            }

            .hero-subtitle {
                font-size: 16px;
            }

            .about-layout, .map-section-layout, .info-layout, .contact-layout, .footer-grid {
                grid-template-columns: 1fr;
            }

            .process-flow {
                grid-template-columns: 1fr;
            }

            .training-grid {
                grid-template-columns: repeat(2, 1fr);
            }

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