:root {
            --primary: #0052ff;
            --primary-light: #e6eeff;
            --accent: #ff007a;
            --accent-purple: #7000ff;
            --bg-main: #f8f9fa;
            --bg-card: #ffffff;
            --text-main: #1a1a1a;
            --text-muted: #666666;
            --border-color: #e5e7eb;
            --container-width: 1200px;
        }

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

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

        a {
            color: var(--primary);
            text-decoration: none;
            transition: all 0.3s ease;
        }

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

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

        /* 顶部导航 */
        header {
            background-color: rgba(255, 255, 255, 0.95);
            border-bottom: 2px solid var(--primary);
            position: sticky;
            top: 0;
            z-index: 1000;
            backdrop-filter: blur(10px);
        }

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

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

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

        .logo-area span {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--text-main);
            letter-spacing: 1px;
        }

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

        .nav-item a {
            color: var(--text-main);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 8px 12px;
            border-radius: 4px;
        }

        .nav-item a:hover {
            background-color: var(--primary-light);
            color: var(--primary);
        }

        .nav-btn {
            background: linear-gradient(135deg, var(--primary), var(--accent-purple));
            color: #ffffff !important;
            padding: 8px 20px !important;
            border-radius: 50px;
            box-shadow: 0 4px 15px rgba(112, 0, 255, 0.2);
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(112, 0, 255, 0.35);
        }

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

        .menu-toggle span {
            display: block;
            width: 25px;
            height: 3px;
            background-color: var(--text-main);
            transition: 0.3s;
        }

        /* Hero 首屏 - 撞色艳色 纯代码无图风格 */
        .hero {
            position: relative;
            background: radial-gradient(circle at 10% 20%, rgba(0, 82, 255, 0.05) 0%, rgba(255, 0, 122, 0.05) 90%), #ffffff;
            padding: 100px 0 80px 0;
            text-align: center;
            border-bottom: 1px solid var(--border-color);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: var(--primary-light);
            filter: blur(80px);
            z-index: 1;
        }

        .hero::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 300px;
            height: 300px;
            border-radius: 50%;
            background: rgba(255, 0, 122, 0.1);
            filter: blur(80px);
            z-index: 1;
        }

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

        .hero-tag {
            display: inline-block;
            background-color: var(--accent);
            color: #ffffff;
            font-size: 0.85rem;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 24px;
            text-transform: uppercase;
            letter-spacing: 1px;
            box-shadow: 0 4px 10px rgba(255, 0, 122, 0.2);
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            color: var(--text-main);
            margin-bottom: 24px;
        }

        .hero h1 span {
            background: linear-gradient(135deg, var(--primary), var(--accent-purple), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: 1.2rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 16px 36px;
            font-size: 1.05rem;
            font-weight: 700;
            border-radius: 50px;
            transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
            cursor: pointer;
            border: none;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent-purple));
            color: #ffffff;
            box-shadow: 0 8px 25px rgba(0, 82, 255, 0.25);
        }

        .btn-primary:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(0, 82, 255, 0.4);
        }

        .btn-secondary {
            background-color: var(--bg-card);
            color: var(--text-main);
            border: 2px solid var(--text-main);
        }

        .btn-secondary:hover {
            background-color: var(--text-main);
            color: #ffffff;
            transform: translateY(-3px);
        }

        /* 统一卡片与区域设计 */
        section {
            padding: 80px 0;
            border-bottom: 1px solid var(--border-color);
        }

        .section-header {
            text-align: center;
            margin-bottom: 50px;
        }

        .section-header h2 {
            font-size: 2.25rem;
            font-weight: 800;
            color: var(--text-main);
            position: relative;
            display: inline-block;
            padding-bottom: 12px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 60px;
            height: 4px;
            background: linear-gradient(to right, var(--primary), var(--accent));
            border-radius: 2px;
        }

        .section-header p {
            margin-top: 15px;
            color: var(--text-muted);
            font-size: 1.05rem;
        }

        /* 数据指标 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-top: -40px;
            position: relative;
            z-index: 10;
        }

        .stat-card {
            background-color: var(--bg-card);
            padding: 30px 20px;
            border-radius: 16px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
            border-top: 4px solid var(--primary);
            transition: transform 0.3s;
        }

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

        .stat-card:nth-child(even) {
            border-top-color: var(--accent);
        }

        .stat-num {
            font-size: 2.5rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 8px;
            background: linear-gradient(135deg, var(--text-main), var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 600;
        }

        /* 关于我们与平台介绍 */
        .intro-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .intro-text h3 {
            font-size: 1.75rem;
            margin-bottom: 20px;
            color: var(--text-main);
        }

        .intro-text p {
            color: var(--text-muted);
            margin-bottom: 20px;
            font-size: 1.05rem;
            line-height: 1.8;
        }

        .intro-features {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .intro-feat-item {
            display: flex;
            align-items: flex-start;
            gap: 10px;
        }

        .intro-feat-item span {
            color: var(--accent);
            font-size: 1.2rem;
            font-weight: bold;
        }

        .intro-feat-text h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 5px;
        }

        .intro-feat-text p {
            font-size: 0.85rem;
            margin: 0;
            line-height: 1.4;
        }

        /* 撞色图片容器 */
        .intro-visual {
            background: linear-gradient(135deg, var(--primary-light), rgba(255, 0, 122, 0.1));
            border-radius: 24px;
            padding: 24px;
            border: 2px dashed var(--primary);
        }

        .intro-visual img {
            border-radius: 16px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
        }

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

        .service-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 40px 30px;
            transition: all 0.3s;
            position: relative;
            overflow: hidden;
        }

        .service-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(to right, var(--primary), var(--accent-purple));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .service-card:hover::before {
            transform: scaleX(1);
        }

        .service-card:hover {
            transform: translateY(-8px);
            box-shadow: 0 15px 35px rgba(0, 82, 255, 0.1);
        }

        .service-icon {
            font-size: 2.5rem;
            margin-bottom: 24px;
            display: inline-block;
        }

        .service-card h3 {
            font-size: 1.35rem;
            margin-bottom: 15px;
            font-weight: 700;
        }

        .service-card p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        /* 标签展示 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 20px;
        }

        .tag-cloud span {
            background-color: var(--bg-main);
            color: var(--text-main);
            padding: 4px 12px;
            font-size: 0.8rem;
            border-radius: 50px;
            font-weight: 600;
            border: 1px solid var(--border-color);
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            background-color: var(--bg-card);
            border-radius: 16px;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
            border: 1px solid var(--border-color);
        }

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

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

        th {
            background-color: var(--primary-light);
            color: var(--primary);
            font-weight: 700;
        }

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

        .highlight-row {
            background-color: rgba(0, 82, 255, 0.02);
            font-weight: 600;
        }

        .rating-box {
            background: linear-gradient(135deg, var(--accent), var(--accent-purple));
            color: #ffffff;
            padding: 30px;
            border-radius: 16px;
            margin-bottom: 40px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        .rating-score {
            font-size: 3rem;
            font-weight: 900;
        }

        /* 步骤流程 */
        .step-timeline {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 30px;
            position: relative;
        }

        .step-item {
            position: relative;
            background-color: var(--bg-card);
            padding: 30px 24px;
            border-radius: 16px;
            border: 1px solid var(--border-color);
        }

        .step-num {
            position: absolute;
            top: -20px;
            left: 24px;
            width: 40px;
            height: 40px;
            background-color: var(--accent);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            box-shadow: 0 4px 10px rgba(255, 0, 122, 0.3);
        }

        .step-item h3 {
            margin-top: 10px;
            font-size: 1.2rem;
            margin-bottom: 12px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        /* 案例中心 */
        .gallery-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 30px;
        }

        .gallery-card {
            background-color: var(--bg-card);
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid var(--border-color);
            transition: all 0.3s;
        }

        .gallery-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }

        .gallery-img-wrapper {
            position: relative;
            overflow: hidden;
            display: flex;
            justify-content: center;
            align-items: center;
            background-color: #eee;
        }

        .gallery-img-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
        }

        .gallery-info {
            padding: 24px;
        }

        .gallery-info h3 {
            font-size: 1.25rem;
            margin-bottom: 8px;
        }

        .gallery-info p {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .faq-item {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 12px;
            overflow: hidden;
            transition: all 0.3s;
        }

        .faq-header {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            justify-content: space-between;
            align-items: center;
            font-weight: 700;
            user-select: none;
            background-color: #ffffff;
        }

        .faq-header:hover {
            background-color: var(--primary-light);
        }

        .faq-icon {
            font-size: 1.2rem;
            transition: transform 0.3s;
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s cubic-bezier(0, 1, 0, 1);
            background-color: #fafafa;
        }

        .faq-content-inner {
            padding: 20px 24px;
            border-top: 1px solid var(--border-color);
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.7;
        }

        .faq-item.active .faq-content {
            max-height: 1000px;
            transition: max-height 0.5s cubic-bezier(1, 0, 1, 0);
        }

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

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

        .comment-card {
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            border-radius: 16px;
            padding: 30px;
            position: relative;
        }

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

        .comment-user {
            display: flex;
            align-items: center;
            gap: 15px;
        }

        .comment-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background-color: var(--primary-light);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .comment-info h4 {
            font-size: 0.95rem;
            font-weight: 700;
        }

        .comment-info p {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        /* 需求与表单设计 */
        .form-grid {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: start;
        }

        .form-wrapper {
            background-color: var(--bg-card);
            border: 2px solid var(--text-main);
            border-radius: 20px;
            padding: 40px;
            box-shadow: 10px 10px 0px var(--text-main);
        }

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

        .form-group label {
            display: block;
            font-weight: 700;
            margin-bottom: 8px;
        }

        .form-control {
            width: 100%;
            padding: 12px 16px;
            border: 2px solid var(--border-color);
            border-radius: 8px;
            font-size: 1rem;
            transition: border-color 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
        }

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

        .form-info-card h3 {
            font-size: 1.5rem;
            margin-bottom: 20px;
            color: var(--primary);
        }

        .contact-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

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

        .contact-label {
            font-weight: 700;
            min-width: 80px;
        }

        .qr-wrapper {
            margin-top: 20px;
            display: flex;
            gap: 20px;
            align-items: center;
        }

        .qr-wrapper img {
            width: 100px;
            height: 100px;
            border-radius: 8px;
            border: 1px solid var(--border-color);
        }

        /* 底部与友情链接 */
        footer {
            background-color: var(--text-main);
            color: #ffffff;
            padding: 60px 0 30px 0;
        }

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

        .footer-brand h3 {
            font-size: 1.5rem;
            margin-bottom: 15px;
            color: #ffffff;
        }

        .footer-brand p {
            color: #999999;
            font-size: 0.9rem;
            line-height: 1.6;
        }

        .footer-links h4 {
            font-size: 1.1rem;
            margin-bottom: 15px;
            position: relative;
        }

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

        .footer-links a {
            color: #cccccc;
            font-size: 0.9rem;
        }

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

        .footer-bottom {
            border-top: 1px solid #333;
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
            font-size: 0.85rem;
            color: #888888;
        }

        .footer-bottom-links {
            display: flex;
            gap: 15px;
            flex-wrap: wrap;
        }

        .footer-bottom-links a {
            color: #888888;
        }

        /* 悬浮客服 */
        .float-contact {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .float-item {
            width: 50px;
            height: 50px;
            background-color: var(--primary);
            color: #ffffff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
            cursor: pointer;
            position: relative;
            transition: all 0.3s;
        }

        .float-item:hover {
            background-color: var(--accent);
            transform: scale(1.05);
        }

        .float-popover {
            position: absolute;
            right: 60px;
            bottom: 0;
            background-color: var(--bg-card);
            border: 1px solid var(--border-color);
            padding: 15px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.15);
            display: none;
            width: 220px;
            color: var(--text-main);
            text-align: center;
        }

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

        .float-item:hover .float-popover {
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 1024px) {
            .stats-grid, .grid-3, .comments-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .step-timeline {
                grid-template-columns: repeat(2, 1fr);
                gap: 40px;
            }
            .form-grid, .intro-grid {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background-color: #ffffff;
                border-bottom: 2px solid var(--primary);
                padding: 20px;
                box-shadow: 0 10px 20px rgba(0,0,0,0.05);
            }
            .nav-menu.active {
                display: flex;
            }
            .menu-toggle {
                display: flex;
            }
            .hero h1 {
                font-size: 2rem;
            }
            .stats-grid, .grid-3, .comments-grid, .step-timeline, .gallery-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
            .rating-box {
                flex-direction: column;
                text-align: center;
            }
        }