:root {
            --primary-color: #0D47A1;
            --primary-light: #1E88E5;
            --primary-dark: #0A2E66;
            --accent-color: #00B0FF;
            --accent-light: #E0F7FA;
            --text-dark: #1C2833;
            --text-muted: #566573;
            --bg-light: #F4F6F9;
            --bg-white: #FFFFFF;
            --border-color: #E2E8F0;
            --success-color: #2ECC71;
            --warning-color: #F1C40F;
            --transition-normal: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
            -webkit-text-size-adjust: 100%;
        }

        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans CJK SC", sans-serif;
            color: var(--text-dark);
            background-color: var(--bg-light);
            line-height: 1.6;
            overflow-x: hidden;
        }

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

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

        img {
            max-width: 100%;
            height: auto;
            vertical-align: middle;
            border-style: none;
        }

        /* 布局容器 */
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 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;
            box-shadow: 0 2px 10px rgba(0,0,0,0.05);
        }

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

        .logo-area {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-area img {
            height: 40px;
            width: auto;
        }

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

        .nav-menu a {
            color: var(--text-dark);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 4px;
        }

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

        .nav-btn {
            background-color: var(--primary-color);
            color: #fff !important;
            padding: 8px 20px !important;
            border-radius: 50px !important;
            box-shadow: 0 4px 6px rgba(13, 71, 161, 0.2);
        }

        .nav-btn:hover {
            background-color: var(--primary-light);
            box-shadow: 0 6px 12px rgba(13, 71, 161, 0.3);
        }

        .menu-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            cursor: pointer;
            border: none;
            background: transparent;
            padding: 5px;
        }

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-dark);
            border-radius: 2px;
            transition: var(--transition-normal);
        }

        /* Hero首屏 - 严禁出现图片 */
        .hero-section {
            padding: 160px 0 100px;
            background: linear-gradient(135deg, #0A2E66 0%, #0D47A1 50%, #1565C0 100%);
            color: #ffffff;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(0,176,255,0.15) 0%, transparent 60%);
            pointer-events: none;
        }

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

        .hero-tag {
            background-color: rgba(255, 255, 255, 0.15);
            border: 1px solid rgba(255, 255, 255, 0.25);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 0.9rem;
            display: inline-block;
            margin-bottom: 24px;
            letter-spacing: 1px;
            backdrop-filter: blur(5px);
        }

        .hero-title {
            font-size: 2.8rem;
            line-height: 1.25;
            margin-bottom: 24px;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        .hero-subtitle {
            font-size: 1.2rem;
            margin-bottom: 40px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            justify-content: center;
            gap: 20px;
            flex-wrap: wrap;
        }

        .btn-primary {
            background-color: #ffffff;
            color: var(--primary-color);
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 8px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.15);
            font-size: 1.05rem;
            border: 2px solid #ffffff;
        }

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

        .btn-secondary {
            background-color: transparent;
            color: #ffffff;
            font-weight: 600;
            padding: 14px 32px;
            border-radius: 8px;
            border: 2px solid rgba(255, 255, 255, 0.6);
            font-size: 1.05rem;
        }

        .btn-secondary:hover {
            background-color: rgba(255, 255, 255, 0.1);
            border-color: #ffffff;
            transform: translateY(-2px);
        }

        /* 基础样式：卡片与模块 */
        section {
            padding: 80px 0;
            position: relative;
        }

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

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

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 50px;
        }

        .section-title {
            font-size: 2.2rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-title::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background-color: var(--accent-color);
            border-radius: 2px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: 1.05rem;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
        }

        .stats-card {
            background: var(--bg-white);
            border-radius: 12px;
            padding: 30px 20px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0,0,0,0.08);
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
        }

        .stats-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 15px 40px rgba(13, 71, 161, 0.12);
        }

        .stats-number {
            font-size: 2.5rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 5px;
        }

        .stats-label {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
        }

        /* 关于我们与技术标准 */
        .about-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .about-text h3 {
            font-size: 1.8rem;
            color: var(--primary-dark);
            margin-bottom: 20px;
        }

        .about-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.8;
        }

        .about-features {
            list-style: none;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
            margin-top: 30px;
        }

        .about-features li {
            position: relative;
            padding-left: 25px;
            color: var(--text-dark);
            font-weight: 500;
        }

        .about-features li::before {
            content: '✓';
            position: absolute;
            left: 0;
            color: var(--success-color);
            font-weight: bold;
        }

        /* 平台服务体系与卡片 */
        .services-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 40px 30px;
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 25px rgba(0,0,0,0.08);
            border-color: var(--primary-light);
        }

        .service-icon {
            width: 60px;
            height: 60px;
            background-color: var(--accent-light);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-color);
            font-size: 1.8rem;
            margin-bottom: 25px;
        }

        .service-card h3 {
            font-size: 1.3rem;
            margin-bottom: 15px;
            color: var(--primary-dark);
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 20px;
        }

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

        .service-tag {
            font-size: 0.75rem;
            background-color: var(--bg-light);
            padding: 4px 8px;
            border-radius: 4px;
            color: var(--primary-color);
            font-weight: 500;
        }

        /* 支持的模型标签云 */
        .model-tags-box {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            margin-top: 40px;
            border: 1px solid var(--border-color);
        }

        .model-tags-title {
            text-align: center;
            font-size: 1.1rem;
            color: var(--text-dark);
            margin-bottom: 20px;
            font-weight: 600;
        }

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

        .model-badge {
            background-color: #E3F2FD;
            color: var(--primary-color);
            padding: 6px 14px;
            border-radius: 50px;
            font-size: 0.85rem;
            font-weight: 500;
            border: 1px solid #BBDEFB;
            transition: var(--transition-normal);
        }

        .model-badge:hover {
            background-color: var(--primary-color);
            color: #ffffff;
            transform: scale(1.05);
        }

        /* 制作流程 & 时间线 */
        .process-flow {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            position: relative;
        }

        .process-step {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 35px 25px;
            text-align: center;
            border: 1px solid var(--border-color);
            position: relative;
            z-index: 2;
        }

        .step-num {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            margin: 0 auto 20px;
            font-size: 1.2rem;
            box-shadow: 0 4px 10px rgba(13, 71, 161, 0.3);
        }

        .process-step h3 {
            font-size: 1.15rem;
            margin-bottom: 12px;
            color: var(--primary-dark);
        }

        .process-step p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.6;
        }

        /* 对比评测模块 */
        .rating-box {
            background: linear-gradient(135deg, #0A2E66 0%, #0D47A1 100%);
            color: #ffffff;
            border-radius: 16px;
            padding: 40px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 40px;
            box-shadow: 0 10px 30px rgba(13, 71, 161, 0.2);
        }

        .rating-score-wrapper {
            display: flex;
            align-items: center;
            gap: 25px;
        }

        .rating-score {
            font-size: 4.5rem;
            font-weight: 800;
            color: var(--accent-color);
            line-height: 1;
        }

        .rating-stars {
            display: flex;
            flex-direction: column;
            gap: 5px;
        }

        .stars {
            color: #FFD700;
            font-size: 1.5rem;
            letter-spacing: 2px;
        }

        .rating-meta {
            font-size: 0.95rem;
            color: rgba(255,255,255,0.8);
        }

        .rating-desc {
            max-width: 550px;
            font-size: 1.05rem;
            line-height: 1.7;
        }

        /* 对比表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 12px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 15px rgba(0,0,0,0.05);
            background-color: var(--bg-white);
        }

        .comparison-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 800px;
        }

        .comparison-table th, .comparison-table td {
            padding: 18px 24px;
            border-bottom: 1px solid var(--border-color);
        }

        .comparison-table th {
            background-color: #E8EFEF;
            color: var(--primary-dark);
            font-weight: 700;
        }

        .comparison-table th:first-child {
            background-color: #E8EFEF;
        }

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

        .comparison-table tr:hover {
            background-color: var(--bg-light);
        }

        .highlight-col {
            background-color: rgba(13, 71, 161, 0.03);
            font-weight: 600;
        }

        .text-success-bold {
            color: var(--success-color);
            font-weight: 700;
        }

        /* Token 比价参考 */
        .price-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 25px;
        }

        .price-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition-normal);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .price-card.featured {
            border: 2px solid var(--primary-color);
            transform: scale(1.03);
            box-shadow: 0 10px 25px rgba(13, 71, 161, 0.1);
        }

        .price-card:hover:not(.featured) {
            transform: translateY(-5px);
        }

        .price-header {
            padding: 30px;
            background-color: var(--bg-light);
            text-align: center;
            border-bottom: 1px solid var(--border-color);
        }

        .price-card.featured .price-header {
            background-color: rgba(13, 71, 161, 0.05);
        }

        .price-name {
            font-size: 1.25rem;
            color: var(--primary-dark);
            font-weight: 700;
            margin-bottom: 10px;
        }

        .price-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--primary-color);
        }

        .price-num span {
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
        }

        .price-features {
            padding: 30px;
            list-style: none;
        }

        .price-features li {
            padding: 10px 0;
            border-bottom: 1px dashed var(--border-color);
            font-size: 0.95rem;
            color: var(--text-dark);
            display: flex;
            justify-content: space-between;
        }

        .price-features li:last-child {
            border-bottom: none;
        }

        .price-btn-box {
            padding: 0 30px 30px;
        }

        .price-btn {
            display: block;
            text-align: center;
            padding: 12px;
            border-radius: 6px;
            font-weight: 600;
            border: 1px solid var(--primary-color);
            transition: var(--transition-normal);
        }

        .price-card.featured .price-btn {
            background-color: var(--primary-color);
            color: #ffffff;
        }

        .price-card.featured .price-btn:hover {
            background-color: var(--primary-light);
            border-color: var(--primary-light);
        }

        .price-btn:not(.featured) {
            color: var(--primary-color);
            background-color: transparent;
        }

        .price-btn:not(.featured):hover {
            background-color: var(--primary-color);
            color: #ffffff;
        }

        /* 案例展示区 - 包含图片配置 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .case-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 5px 15px rgba(0,0,0,0.04);
            border: 1px solid var(--border-color);
            transition: var(--transition-normal);
        }

        .case-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 12px 30px rgba(0,0,0,0.08);
        }

        .case-img-container {
            width: 100%;
            height: 240px;
            overflow: hidden;
            position: relative;
            background-color: var(--bg-light);
        }

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

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

        .case-content {
            padding: 25px;
        }

        .case-category {
            font-size: 0.8rem;
            font-weight: 700;
            color: var(--accent-color);
            text-transform: uppercase;
            margin-bottom: 10px;
            display: inline-block;
        }

        .case-title {
            font-size: 1.25rem;
            color: var(--primary-dark);
            margin-bottom: 12px;
            font-weight: 700;
        }

        .case-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 15px;
        }

        /* 侧栏及两栏内容：素材图展示 */
        .materials-section {
            background-color: var(--bg-white);
        }

        .materials-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .material-img-box {
            border-radius: 12px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0,0,0,0.05);
        }

        /* 常见用户问题 FAQ 折叠面板 */
        .faq-list {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            background-color: var(--bg-white);
            border-radius: 8px;
            margin-bottom: 15px;
            border: 1px solid var(--border-color);
            overflow: hidden;
            transition: var(--transition-normal);
        }

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

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            color: var(--primary-dark);
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 1.5rem;
            font-weight: 400;
            color: var(--primary-light);
            transition: var(--transition-normal);
        }

        .faq-item.active .faq-question::after {
            content: '−';
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background-color: rgba(244, 246, 249, 0.5);
        }

        .faq-answer-inner {
            padding: 0 24px 20px;
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        /* 常见问题排查与技术百科 */
        .troubleshoot-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            margin-top: 40px;
        }

        .troubleshoot-card, .wiki-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
        }

        .troubleshoot-card h3, .wiki-card h3 {
            color: var(--primary-dark);
            font-size: 1.25rem;
            margin-bottom: 20px;
            border-bottom: 2px solid var(--accent-light);
            padding-bottom: 10px;
        }

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

        .troubleshoot-list li, .wiki-list li {
            padding: 12px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .troubleshoot-list li:last-child, .wiki-list li:last-child {
            border-bottom: none;
        }

        .troubleshoot-title, .wiki-term {
            font-weight: 600;
            color: var(--text-dark);
            margin-bottom: 5px;
        }

        .troubleshoot-desc, .wiki-def {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 客户评论卡片 */
        .comments-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .comment-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            position: relative;
        }

        .comment-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 20px;
            font-style: italic;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }

        .comment-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background-color: var(--accent-light);
            color: var(--primary-color);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 1.1rem;
        }

        .comment-info h4 {
            font-size: 0.95rem;
            color: var(--text-dark);
            font-weight: 700;
        }

        .comment-info p {
            font-size: 0.8rem;
            color: var(--accent-color);
            font-weight: 500;
        }

        /* 行业资讯 / 知识库 */
        .news-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .news-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 4px 6px rgba(0,0,0,0.02);
            transition: var(--transition-normal);
        }

        .news-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 20px rgba(0,0,0,0.06);
        }

        .news-content {
            padding: 25px;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 10px;
        }

        .news-title {
            font-size: 1.1rem;
            color: var(--primary-dark);
            margin-bottom: 15px;
            font-weight: 700;
            line-height: 1.4;
        }

        .news-link {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--primary-color);
            display: inline-flex;
            align-items: center;
            gap: 5px;
        }

        .news-link::after {
            content: '→';
            transition: var(--transition-normal);
        }

        .news-card:hover .news-link::after {
            transform: translateX(5px);
        }

        /* 联系我们与智能需求匹配表单 */
        .contact-wrapper {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-panel {
            background-color: var(--primary-dark);
            color: #ffffff;
            padding: 40px;
            border-radius: 12px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .contact-info-title h3 {
            font-size: 1.8rem;
            margin-bottom: 15px;
            color: #ffffff;
        }

        .contact-info-title p {
            color: rgba(255,255,255,0.7);
            font-size: 0.95rem;
        }

        .contact-details {
            list-style: none;
            margin: 40px 0;
        }

        .contact-details li {
            margin-bottom: 25px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
        }

        .contact-detail-icon {
            color: var(--accent-color);
            font-weight: bold;
            font-size: 1.2rem;
        }

        .contact-detail-text h4 {
            font-size: 0.9rem;
            color: rgba(255,255,255,0.6);
            text-transform: uppercase;
            margin-bottom: 4px;
        }

        .contact-detail-text p, .contact-detail-text a {
            color: #ffffff;
            font-size: 1.05rem;
            font-weight: 500;
        }

        .contact-qr-box {
            display: flex;
            align-items: center;
            gap: 20px;
            background-color: rgba(255,255,255,0.08);
            padding: 20px;
            border-radius: 8px;
        }

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

        .contact-qr-text p {
            font-size: 0.9rem;
            font-weight: 600;
        }

        .contact-qr-text span {
            font-size: 0.8rem;
            color: rgba(255,255,255,0.6);
            display: block;
            margin-top: 4px;
        }

        /* 表单样式 */
        .form-card {
            background-color: var(--bg-white);
            border-radius: 12px;
            padding: 40px;
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 30px rgba(0,0,0,0.04);
        }

        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .form-group {
            margin-bottom: 20px;
        }

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

        .form-label {
            display: block;
            margin-bottom: 8px;
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-dark);
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border-radius: 6px;
            border: 1px solid var(--border-color);
            background-color: var(--bg-light);
            font-size: 0.95rem;
            color: var(--text-dark);
            transition: var(--transition-normal);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-light);
            background-color: var(--bg-white);
            box-shadow: 0 0 0 3px rgba(30, 136, 229, 0.1);
        }

        textarea.form-control {
            resize: vertical;
            min-height: 120px;
        }

        .form-submit-btn {
            background-color: var(--primary-color);
            color: #ffffff;
            border: none;
            padding: 14px 30px;
            border-radius: 6px;
            font-weight: 700;
            font-size: 1rem;
            cursor: pointer;
            width: 100%;
            transition: var(--transition-normal);
            box-shadow: 0 4px 10px rgba(13, 71, 161, 0.2);
        }

        .form-submit-btn:hover {
            background-color: var(--primary-light);
            box-shadow: 0 6px 15px rgba(13, 71, 161, 0.3);
        }

        /* 侧边悬浮窗口 */
        .floating-action {
            position: fixed;
            right: 20px;
            bottom: 20px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background-color: var(--primary-color);
            color: #ffffff;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            cursor: pointer;
            position: relative;
            transition: var(--transition-normal);
        }

        .float-btn:hover {
            background-color: var(--primary-light);
            transform: scale(1.05);
        }

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            top: 50%;
            transform: translateY(-50%) translateX(10px);
            background-color: var(--primary-dark);
            color: #ffffff;
            padding: 8px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition-normal);
            box-shadow: 0 2px 10px rgba(0,0,0,0.1);
        }

        .float-btn:hover .tooltip {
            opacity: 1;
            visibility: visible;
            transform: translateY(-50%) translateX(0);
        }

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background-color: var(--bg-white);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 8px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            display: none;
            text-align: center;
            width: 150px;
        }

        .qr-popover img {
            width: 120px;
            height: 120px;
            margin-bottom: 8px;
        }

        .qr-popover p {
            font-size: 0.75rem;
            color: var(--text-dark);
            margin: 0;
        }

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

        /* 页脚样式 */
        footer {
            background-color: #0A192F;
            color: rgba(255,255,255,0.7);
            padding: 70px 0 30px;
            font-size: 0.9rem;
            border-top: 4px solid var(--primary-color);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 50px;
        }

        .footer-logo img {
            height: 45px;
            margin-bottom: 20px;
        }

        .footer-about p {
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .footer-title {
            color: #ffffff;
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
        }

        .footer-links {
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 12px;
        }

        .footer-links a {
            color: rgba(255,255,255,0.7);
            transition: var(--transition-normal);
        }

        .footer-links a:hover {
            color: var(--accent-color);
            padding-left: 5px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 15px;
            padding-top: 15px;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        .friend-links a {
            color: rgba(255,255,255,0.5);
            font-size: 0.85rem;
            background-color: rgba(255,255,255,0.05);
            padding: 4px 10px;
            border-radius: 4px;
        }

        .friend-links a:hover {
            color: #ffffff;
            background-color: var(--primary-color);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255,255,255,0.1);
            padding-top: 30px;
            text-align: center;
            font-size: 0.8rem;
            color: rgba(255,255,255,0.5);
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
                margin-top: 20px;
            }
            .services-grid, .price-grid, .comments-grid, .news-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-flow {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                position: fixed;
                top: 70px;
                left: -100%;
                width: 100%;
                height: calc(100vh - 70px);
                background-color: var(--bg-white);
                flex-direction: column;
                padding: 40px 20px;
                gap: 25px;
                transition: var(--transition-normal);
                box-shadow: 0 10px 15px rgba(0,0,0,0.05);
                overflow-y: auto;
            }
            .nav-menu.active {
                left: 0;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-title {
                font-size: 2rem;
            }
            .hero-subtitle {
                font-size: 1rem;
            }
            .about-grid, .case-grid, .materials-grid, .troubleshoot-grid, .contact-wrapper {
                grid-template-columns: 1fr;
            }
            .rating-box {
                flex-direction: column;
                text-align: center;
                gap: 20px;
            }
            .rating-score-wrapper {
                justify-content: center;
            }
            .rating-desc {
                max-width: 100%;
            }
            .form-grid {
                grid-template-columns: 1fr;
            }
            .form-group.full-width {
                grid-column: span 1;
            }
            .services-grid, .price-grid, .comments-grid, .news-grid, .process-flow {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }