:root {
            --primary-gradient: linear-gradient(135deg, #ec4899 0%, #8b5cf6 50%, #3b82f6 100%);
            --accent-pink: #ec4899;
            --accent-purple: #8b5cf6;
            --accent-blue: #3b82f6;
            --bg-light: #f9fafb;
            --text-dark: #111827;
            --text-muted: #4b5563;
            --border-color: #e5e7eb;
            --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.08);
            --transition: all 0.3s ease;
        }

        * {
            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-dark);
            background-color: var(--bg-light);
        }

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

        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* 顶部导航 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid var(--border-color);
            z-index: 1000;
            height: 70px;
            display: flex;
            align-items: center;
        }

        .nav-wrapper {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
        }

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

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

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

        .nav-menu a {
            color: var(--text-dark);
            text-decoration: none;
            font-size: 14px;
            font-weight: 500;
            transition: var(--transition);
        }

        .nav-menu a:hover {
            color: var(--accent-pink);
        }

        .nav-btns {
            display: flex;
            align-items: center;
            gap: 15px;
        }

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

        .btn-outline {
            border: 2px solid var(--accent-purple);
            color: var(--accent-purple);
            background: transparent;
        }

        .btn-outline:hover {
            background: var(--accent-purple);
            color: white;
        }

        .btn-gradient {
            background: var(--primary-gradient);
            color: white;
            border: none;
            box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
        }

        .btn-gradient:hover {
            opacity: 0.9;
            transform: translateY(-2px);
        }

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

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

        /* Hero首屏 - 艳色科技潮流，纯CSS无图片设计 */
        .hero {
            padding-top: 150px;
            padding-bottom: 80px;
            background: radial-gradient(circle at 80% 20%, rgba(236, 72, 153, 0.15) 0%, rgba(139, 92, 246, 0.1) 50%, transparent 100%), #ffffff;
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 50vw;
            height: 50vw;
            background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
            z-index: 1;
            pointer-events: none;
        }

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

        .badge-潮流 {
            background: rgba(236, 72, 153, 0.1);
            color: var(--accent-pink);
            padding: 6px 16px;
            border-radius: 50px;
            font-size: 13px;
            font-weight: 700;
            display: inline-block;
            margin-bottom: 20px;
            border: 1px solid rgba(236, 72, 153, 0.2);
            text-transform: uppercase;
            letter-spacing: 1px;
        }

        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        h1 span {
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 18px;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 60px;
        }

        .hero-cta .btn {
            padding: 15px 35px;
            font-size: 16px;
        }

        /* 统一的 Section 样式 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            max-width: 700px;
            margin: 0 auto 60px auto;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 15px;
            position: relative;
            display: inline-block;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: -8px;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: var(--primary-gradient);
            border-radius: 2px;
        }

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

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            margin-top: -30px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background: white;
            padding: 30px 20px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(229, 231, 235, 0.5);
            text-align: center;
            transition: var(--transition);
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--accent-purple);
        }

        .stat-num {
            font-size: 36px;
            font-weight: 800;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            margin-bottom: 5px;
        }

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

        /* 服务能力卡片 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

        .service-card {
            background: white;
            padding: 40px 30px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

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

        .service-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 40px rgba(139, 92, 246, 0.1);
        }

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

        .service-icon {
            width: 60px;
            height: 60px;
            background: rgba(139, 92, 246, 0.1);
            color: var(--accent-purple);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 24px;
            margin-bottom: 25px;
        }

        .service-card h3 {
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 14px;
            line-height: 1.6;
        }

        /* 平台支持标签墙 */
        .tags-wrapper {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 12px;
            max-width: 900px;
            margin: 0 auto;
        }

        .tag-pill {
            background: white;
            border: 1px solid var(--border-color);
            padding: 8px 18px;
            border-radius: 50px;
            font-size: 14px;
            font-weight: 500;
            color: var(--text-dark);
            transition: var(--transition);
            cursor: default;
        }

        .tag-pill:hover {
            background: var(--primary-gradient);
            color: white;
            border-color: transparent;
            transform: scale(1.05);
        }

        /* 流程步骤 */
        .steps-container {
            display: flex;
            justify-content: space-between;
            position: relative;
            gap: 20px;
        }

        .steps-container::before {
            content: '';
            position: absolute;
            top: 40px;
            left: 50px;
            right: 50px;
            height: 2px;
            background: var(--border-color);
            z-index: 1;
        }

        .step-node {
            flex: 1;
            text-align: center;
            position: relative;
            z-index: 2;
        }

        .step-number {
            width: 80px;
            height: 80px;
            background: white;
            border: 3px solid var(--accent-blue);
            color: var(--accent-blue);
            font-size: 28px;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px auto;
            transition: var(--transition);
            box-shadow: var(--card-shadow);
        }

        .step-node:hover .step-number {
            background: var(--primary-gradient);
            border-color: transparent;
            color: white;
            transform: rotate(360deg);
        }

        .step-node h4 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

        .step-node p {
            font-size: 13px;
            color: var(--text-muted);
            max-width: 200px;
            margin: 0 auto;
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
            background: white;
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 600px;
        }

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

        .compare-table th {
            background-color: #f3f4f6;
            font-weight: 700;
        }

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

        .compare-table td.highlight-cell {
            background: rgba(236, 72, 153, 0.03);
            font-weight: 600;
            color: var(--accent-purple);
        }

        .score-box {
            display: flex;
            align-items: center;
            justify-content: space-between;
            background: white;
            padding: 30px;
            border-radius: 16px;
            margin-top: 30px;
            border: 1px dashed var(--accent-pink);
        }

        .score-title {
            font-size: 20px;
            font-weight: 700;
        }

        .score-stars {
            color: #f59e0b;
            font-size: 24px;
        }

        .score-val {
            font-size: 32px;
            font-weight: 800;
            color: var(--accent-pink);
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 30px;
        }

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

        .case-card:hover {
            transform: translateY(-5px);
        }

        .case-img {
            width: 100%;
            height: 200px;
            overflow: hidden;
            background-color: #eaeaea;
        }

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

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

        .case-info {
            padding: 24px;
        }

        .case-info h3 {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 10px;
        }

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

        /* 价格比价组件 */
        .pricing-list {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .price-card {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            text-align: center;
            transition: var(--transition);
            position: relative;
        }

        .price-card.featured {
            border-color: var(--accent-pink);
            box-shadow: 0 15px 35px rgba(236, 72, 153, 0.15);
        }

        .price-card.featured::after {
            content: '推荐';
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent-pink);
            color: white;
            font-size: 12px;
            padding: 2px 10px;
            border-radius: 20px;
            font-weight: bold;
        }

        .price-name {
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .price-val {
            font-size: 36px;
            font-weight: 800;
            margin-bottom: 20px;
            color: var(--text-dark);
        }

        .price-val span {
            font-size: 14px;
            font-weight: 400;
            color: var(--text-muted);
        }

        .price-features {
            list-style: none;
            margin-bottom: 30px;
            text-align: left;
        }

        .price-features li {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 10px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .price-features li::before {
            content: '✓';
            color: #10b981;
            font-weight: bold;
        }

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .faq-item {
            background: white;
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-question {
            padding: 20px 24px;
            font-weight: 600;
            font-size: 16px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            user-select: none;
        }

        .faq-question::after {
            content: '+';
            font-size: 22px;
            color: var(--accent-purple);
            transition: var(--transition);
        }

        .faq-item.active .faq-question::after {
            transform: rotate(45deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            background: rgba(243, 244, 246, 0.5);
        }

        .faq-answer-content {
            padding: 20px 24px;
            font-size: 14px;
            color: var(--text-muted);
            line-height: 1.6;
        }

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

        .comment-card {
            background: white;
            padding: 30px;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid var(--border-color);
        }

        .comment-text {
            font-size: 14px;
            color: var(--text-muted);
            margin-bottom: 20px;
            line-height: 1.6;
            font-style: italic;
        }

        .comment-user {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .comment-avatar {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: var(--primary-gradient);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 16px;
        }

        .comment-info h4 {
            font-size: 14px;
            font-weight: 700;
        }

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

        /* 知识库/最新文章 */
        .articles-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

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

        .article-card:hover {
            border-color: var(--accent-purple);
            transform: scale(1.01);
        }

        .article-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .article-title a {
            color: var(--text-dark);
            text-decoration: none;
            transition: var(--transition);
        }

        .article-title a:hover {
            color: var(--accent-pink);
        }

        .article-meta {
            font-size: 12px;
            color: var(--text-muted);
            display: flex;
            gap: 15px;
        }

        /* 表单板块与联系我们 */
        .contact-section {
            background: white;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
        }

        .contact-info-panel {
            display: flex;
            flex-direction: column;
            gap: 30px;
        }

        .contact-item {
            display: flex;
            gap: 15px;
            align-items: flex-start;
        }

        .contact-icon {
            width: 40px;
            height: 40px;
            background: rgba(236, 72, 153, 0.1);
            color: var(--accent-pink);
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            font-weight: 700;
        }

        .contact-details h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 5px;
        }

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

        .qr-codes {
            display: flex;
            gap: 20px;
            margin-top: 20px;
        }

        .qr-card {
            background: var(--bg-light);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            width: 130px;
        }

        .qr-card img {
            width: 100px;
            height: 100px;
            object-fit: cover;
            border-radius: 6px;
            margin-bottom: 8px;
        }

        .qr-card p {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-muted);
        }

        .form-panel {
            background: var(--bg-light);
            padding: 40px;
            border-radius: 20px;
            border: 1px solid var(--border-color);
        }

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

        .form-group label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border-color);
            background: white;
            border-radius: 8px;
            font-size: 14px;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--accent-purple);
            box-shadow: 0 0 0 3px rgba(139, 92, 246, 0.15);
        }

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

        /* 帮助中心 / 术语百科与排查 */
        .wiki-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .wiki-card {
            background: white;
            padding: 24px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .wiki-card h3 {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 10px;
            color: var(--accent-purple);
        }

        .wiki-card p {
            font-size: 13px;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* 底部与友情链接 */
        footer {
            background-color: #111827;
            color: #9ca3af;
            padding: 60px 0 30px 0;
            font-size: 14px;
        }

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

        .footer-brand h2 {
            color: white;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 15px;
        }

        .footer-links h3 {
            color: white;
            font-size: 16px;
            margin-bottom: 20px;
        }

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

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #9ca3af;
            text-decoration: none;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: white;
        }

        .friend-links {
            border-top: 1px solid #1f2937;
            border-bottom: 1px solid #1f2937;
            padding: 20px 0;
            margin-bottom: 20px;
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            align-items: center;
        }

        .friend-links span {
            font-weight: 600;
            color: white;
        }

        .friend-links a {
            color: #9ca3af;
            text-decoration: none;
            transition: var(--transition);
        }

        .friend-links a:hover {
            color: var(--accent-pink);
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        /* 浮动客服入口 */
        .floating-service {
            position: fixed;
            bottom: 30px;
            right: 30px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: white;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
        }

        .float-btn-primary {
            background: var(--primary-gradient);
            color: white;
        }

        .float-tooltip {
            position: absolute;
            right: 60px;
            background: white;
            padding: 8px 12px;
            border-radius: 8px;
            box-shadow: var(--card-shadow);
            font-size: 12px;
            white-space: nowrap;
            color: var(--text-dark);
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }

        .float-btn:hover .float-tooltip {
            opacity: 1;
        }

        /* 响应式媒体查询 */
        @media (max-width: 1024px) {
            .grid-3, .case-grid, .pricing-list, .comments-grid, .wiki-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .steps-container {
                flex-direction: column;
                gap: 40px;
            }
            .steps-container::before {
                display: none;
            }
        }

        @media (max-width: 768px) {
            h1 {
                font-size: 2.2rem;
            }
            .menu-toggle {
                display: flex;
            }
            .nav-menu {
                position: absolute;
                top: 70px;
                left: 0;
                right: 0;
                background: white;
                flex-direction: column;
                padding: 20px;
                border-bottom: 1px solid var(--border-color);
                display: none;
            }
            .nav-menu.active {
                display: flex;
            }
            .contact-grid {
                grid-template-columns: 1fr;
            }
            .grid-3, .case-grid, .pricing-list, .comments-grid, .wiki-grid, .articles-grid, .footer-grid {
                grid-template-columns: 1fr;
            }
            .stats-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .hero-cta {
                flex-direction: column;
                gap: 15px;
            }
        }