:root {
            --primary: #7c3aed;
            --primary-light: #a78bfa;
            --primary-dark: #6d28d9;
            --secondary: #db2777;
            --secondary-light: #f472b6;
            --accent: #f43f5e;
            --neutral-dark: #1e1b4b;
            --neutral-light: #faf5ff;
            --bg-gradient: linear-gradient(135deg, #f5f3ff 0%, #fae8ff 100%);
            --card-shadow: 0 10px 30px -10px rgba(124, 58, 237, 0.15);
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

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

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

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

        /* 导航栏 */
        header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: rgba(250, 245, 255, 0.9);
            backdrop-filter: blur(12px);
            z-index: 1000;
            box-shadow: 0 2px 10px rgba(124, 58, 237, 0.08);
            transition: var(--transition);
        }

        .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-text {
            font-size: 20px;
            font-weight: 800;
            background: linear-gradient(to right, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            text-decoration: none;
            color: var(--neutral-dark);
            font-weight: 500;
            font-size: 15px;
            transition: var(--transition);
        }

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

        .nav-btns {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: 99px;
            font-weight: 600;
            text-decoration: none;
            transition: var(--transition);
            cursor: pointer;
        }

        .btn-outline {
            border: 2px solid var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: var(--primary);
            color: #fff;
        }

        .btn-gradient {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            color: #fff;
            border: none;
            box-shadow: 0 4px 15px rgba(124, 58, 237, 0.3);
        }

        .btn-gradient:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(124, 58, 237, 0.4);
        }

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

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

        /* 移动端侧栏 */
        .mobile-nav {
            position: fixed;
            top: 70px;
            left: -100%;
            width: 100%;
            height: calc(100vh - 70px);
            background: var(--neutral-light);
            z-index: 999;
            transition: var(--transition);
            padding: 40px 24px;
            box-shadow: inset 0 10px 15px -3px rgba(0,0,0,0.05);
        }

        .mobile-nav.active {
            left: 0;
        }

        .mobile-nav ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .mobile-nav a {
            text-decoration: none;
            color: var(--neutral-dark);
            font-size: 18px;
            font-weight: 600;
        }

        /* Hero 区域 - 首屏无图片 */
        .hero-section {
            padding-top: 160px;
            padding-bottom: 100px;
            background: var(--bg-gradient);
            position: relative;
            overflow: hidden;
            text-align: center;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -20%;
            left: -10%;
            width: 50%;
            height: 60%;
            background: radial-gradient(circle, rgba(167, 139, 250, 0.15) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-section::after {
            content: '';
            position: absolute;
            bottom: -10%;
            right: -10%;
            width: 50%;
            height: 60%;
            background: radial-gradient(circle, rgba(244, 114, 182, 0.15) 0%, transparent 70%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
        }

        .h1-title {
            font-size: clamp(32px, 5vw, 48px);
            font-weight: 800;
            line-height: 1.25;
            color: var(--neutral-dark);
            margin-bottom: 24px;
        }

        .h1-title span {
            background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-desc {
            font-size: clamp(16px, 2vw, 20px);
            color: #4b5563;
            margin-bottom: 40px;
            max-width: 700px;
            margin-left: auto;
            margin-right: auto;
        }

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

        .hero-cta .btn {
            padding: 16px 36px;
            font-size: 16px;
        }

        /* 标签与特性滚动展示区 */
        .marquee-container {
            width: 100%;
            overflow: hidden;
            white-space: nowrap;
            padding: 20px 0;
            background: rgba(255, 255, 255, 0.6);
            backdrop-filter: blur(5px);
            border-top: 1px solid rgba(124, 58, 237, 0.1);
            border-bottom: 1px solid rgba(124, 58, 237, 0.1);
            margin-top: 40px;
        }

        .marquee-content {
            display: inline-block;
            animation: marquee 30s linear infinite;
        }

        .marquee-item {
            display: inline-block;
            margin: 0 20px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary-dark);
            background: rgba(124, 58, 237, 0.08);
            padding: 6px 16px;
            border-radius: 99px;
            border: 1px solid rgba(124, 58, 237, 0.15);
        }

        @keyframes marquee {
            0% { transform: translate3d(0, 0, 0); }
            100% { transform: translate3d(-50%, 0, 0); }
        }

        /* 数据指标 */
        .stats-section {
            padding: 60px 0;
            background: #fff;
        }

        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 32px;
            text-align: center;
        }

        .stat-card {
            padding: 24px;
            border-radius: 16px;
            background: var(--neutral-light);
            transition: var(--transition);
        }

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

        .stat-num {
            font-size: 40px;
            font-weight: 800;
            color: var(--primary);
            margin-bottom: 8px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .stat-label {
            font-size: 14px;
            color: #6b7280;
            font-weight: 600;
        }

        /* 基础区块样式 */
        .section-padding {
            padding: 100px 0;
        }

        .section-title-area {
            text-align: center;
            margin-bottom: 60px;
        }

        .section-title {
            font-size: 32px;
            font-weight: 800;
            color: var(--neutral-dark);
            margin-bottom: 16px;
            position: relative;
            display: inline-block;
        }

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

        .section-subtitle {
            font-size: 16px;
            color: #6b7280;
            max-width: 600px;
            margin: 0 auto;
        }

        /* 服务能力卡片网格 */
        .grid-3 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 32px;
        }

        .grid-2 {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
            gap: 32px;
        }

        .card {
            background: #fff;
            border-radius: 20px;
            padding: 40px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
            border: 1px solid rgba(124, 58, 237, 0.05);
            transition: var(--transition);
        }

        .card:hover {
            transform: translateY(-8px);
            box-shadow: var(--card-shadow);
        }

        .card-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(124, 58, 237, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 24px;
            color: var(--primary);
            font-size: 24px;
        }

        .card-title {
            font-size: 20px;
            font-weight: 700;
            color: var(--neutral-dark);
            margin-bottom: 16px;
        }

        .card-desc {
            font-size: 15px;
            color: #4b5563;
        }

        /* 流程步骤 */
        .workflow-timeline {
            position: relative;
            max-width: 900px;
            margin: 0 auto;
        }

        .workflow-step {
            display: flex;
            gap: 32px;
            margin-bottom: 40px;
            position: relative;
        }

        .step-num {
            width: 50px;
            height: 50px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #fff;
            font-size: 20px;
            font-weight: 800;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            z-index: 2;
        }

        .step-content {
            background: #fff;
            padding: 24px;
            border-radius: 16px;
            border: 1px solid rgba(124, 58, 237, 0.05);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            flex-grow: 1;
        }

        /* 对比评测表格 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 16px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(124, 58, 237, 0.1);
        }

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

        .comparison-table th, .comparison-table td {
            padding: 20px;
            border-bottom: 1px solid rgba(124, 58, 237, 0.05);
        }

        .comparison-table th {
            background: rgba(124, 58, 237, 0.05);
            color: var(--neutral-dark);
            font-weight: 700;
        }

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

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

        .highlight-row {
            background: rgba(219, 39, 119, 0.02);
        }

        /* 案例中心 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 24px;
        }

        .case-card {
            background: #fff;
            border-radius: 16px;
            overflow: hidden;
            border: 1px solid rgba(124, 58, 237, 0.05);
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            transition: var(--transition);
        }

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

        .case-img-container {
            width: 100%;
            aspect-ratio: 16/9;
            overflow: hidden;
            background: #eee;
        }

        .case-img-container.square {
            aspect-ratio: 1/1;
        }

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

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

        .case-info {
            padding: 24px;
        }

        .case-tag {
            display: inline-block;
            background: rgba(124, 58, 237, 0.08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 99px;
            margin-bottom: 12px;
        }

        .case-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--neutral-dark);
            margin-bottom: 8px;
        }

        /* FAQ 折叠面板 */
        .faq-wrapper {
            max-width: 800px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .faq-item {
            background: #fff;
            border-radius: 12px;
            border: 1px solid rgba(124, 58, 237, 0.08);
            overflow: hidden;
            transition: var(--transition);
        }

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

        .faq-question::after {
            content: '+';
            font-size: 24px;
            color: var(--primary);
            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(250, 245, 255, 0.5);
        }

        .faq-answer p {
            padding: 20px 24px;
            color: #4b5563;
            font-size: 15px;
            border-top: 1px solid rgba(124, 58, 237, 0.05);
        }

        /* 评论卡片 */
        .comment-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 24px;
        }

        .comment-card {
            background: #fff;
            padding: 32px;
            border-radius: 16px;
            box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05);
            border: 1px solid rgba(124, 58, 237, 0.05);
        }

        .comment-text {
            font-size: 15px;
            color: #4b5563;
            font-style: italic;
            margin-bottom: 20px;
            position: relative;
        }

        .comment-text::before {
            content: '“';
            font-size: 40px;
            color: rgba(124, 58, 237, 0.15);
            position: absolute;
            top: -20px;
            left: -10px;
        }

        .commenter-info {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .commenter-avatar {
            width: 48px;
            height: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-light), var(--secondary-light));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #fff;
            font-weight: 700;
        }

        .commenter-name {
            font-weight: 700;
            color: var(--neutral-dark);
            font-size: 15px;
        }

        .commenter-title {
            font-size: 13px;
            color: #6b7280;
        }

        /* 表单与联系区域 */
        .contact-layout {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 48px;
            align-items: start;
        }

        @media (max-width: 992px) {
            .contact-layout {
                grid-template-columns: 1fr;
            }
        }

        .contact-info-card {
            background: linear-gradient(135deg, var(--neutral-dark) 0%, #0f0c24 100%);
            color: #fff;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
        }

        .contact-info-card h3 {
            font-size: 24px;
            margin-bottom: 24px;
            background: linear-gradient(to right, #fff, var(--primary-light));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .contact-method {
            display: flex;
            align-items: flex-start;
            gap: 16px;
            margin-bottom: 24px;
        }

        .contact-method-icon {
            color: var(--primary-light);
            font-size: 20px;
        }

        .contact-method-detail p {
            margin: 0;
            color: #d1d5db;
        }

        .contact-method-detail a {
            color: #fff;
            text-decoration: none;
            transition: var(--transition);
        }

        .contact-method-detail a:hover {
            color: var(--primary-light);
        }

        .qr-codes {
            display: flex;
            gap: 24px;
            margin-top: 32px;
            flex-wrap: wrap;
        }

        .qr-box {
            text-align: center;
            background: rgba(255, 255, 255, 0.05);
            padding: 16px;
            border-radius: 12px;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }

        .qr-box img {
            width: 120px;
            height: 120px;
            border-radius: 8px;
            margin-bottom: 8px;
        }

        .qr-box span {
            display: block;
            font-size: 13px;
            color: #9ca3af;
        }

        .form-card {
            background: #fff;
            padding: 40px;
            border-radius: 20px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(124, 58, 237, 0.05);
        }

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

        .form-label {
            display: block;
            font-size: 14px;
            font-weight: 600;
            color: var(--neutral-dark);
            margin-bottom: 8px;
        }

        .form-input {
            width: 100%;
            padding: 12px 16px;
            border-radius: 8px;
            border: 1px solid #d1d5db;
            background: #f9fafb;
            color: var(--neutral-dark);
            font-size: 15px;
            transition: var(--transition);
        }

        .form-input:focus {
            outline: none;
            border-color: var(--primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.15);
        }

        /* 标签云 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 16px;
        }

        .tag-cloud-item {
            font-size: 13px;
            background: #f3f4f6;
            color: #4b5563;
            padding: 6px 14px;
            border-radius: 99px;
            border: 1px solid #e5e7eb;
            transition: var(--transition);
        }

        .tag-cloud-item:hover {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
        }

        /* 友情链接与知识库 */
        .footer-links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
            gap: 40px;
            padding: 60px 0;
            border-top: 1px solid #e5e7eb;
        }

        .footer-col h4 {
            font-size: 16px;
            color: var(--neutral-dark);
            margin-bottom: 20px;
            font-weight: 700;
        }

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

        .footer-col a {
            color: #6b7280;
            text-decoration: none;
            font-size: 14px;
            transition: var(--transition);
        }

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

        /* 页脚 */
        footer {
            background: #f9fafb;
            border-top: 1px solid #e5e7eb;
            padding: 40px 0;
            color: #6b7280;
            font-size: 14px;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 20px;
        }

        /* 浮动工具栏 */
        .float-bar {
            position: fixed;
            right: 24px;
            bottom: 24px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            z-index: 999;
        }

        .float-btn {
            width: 50px;
            height: 50px;
            border-radius: 50%;
            background: #fff;
            box-shadow: 0 4px 15px rgba(0,0,0,0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: var(--transition);
            border: 1px solid rgba(124, 58, 237, 0.1);
            text-decoration: none;
            color: var(--primary);
            position: relative;
        }

        .float-btn:hover {
            transform: translateY(-3px);
            background: var(--primary);
            color: #fff;
        }

        .float-btn .tooltip {
            position: absolute;
            right: 60px;
            background: var(--neutral-dark);
            color: #fff;
            padding: 6px 12px;
            border-radius: 6px;
            font-size: 12px;
            white-space: nowrap;
            opacity: 0;
            pointer-events: none;
            transition: var(--transition);
        }

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

        .qr-popover {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: #fff;
            padding: 16px;
            border-radius: 12px;
            box-shadow: var(--card-shadow);
            border: 1px solid rgba(124, 58, 237, 0.1);
            display: none;
        }

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

        .qr-popover img {
            width: 140px;
            height: 140px;
            display: block;
        }

        .qr-popover span {
            display: block;
            text-align: center;
            font-size: 12px;
            color: var(--neutral-dark);
            margin-top: 8px;
            font-weight: 600;
        }

        /* 响应式调整 */
        @media (max-width: 768px) {
            .nav-menu, .nav-btns {
                display: none;
            }
            .menu-toggle {
                display: flex;
            }
            .hero-cta {
                flex-direction: column;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }