/* 基础变量与重置 */
        :root {
            --bg-color: #080912;
            --card-bg: rgba(18, 20, 38, 0.7);
            --primary: #00f2fe;
            --primary-glow: rgba(0, 242, 254, 0.4);
            --secondary: #f355da;
            --secondary-glow: rgba(243, 85, 218, 0.4);
            --accent: #7f00ff;
            --text-main: #f8fafc;
            --text-muted: #94a3b8;
            --border-glow: rgba(0, 242, 254, 0.15);
            --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
            --container-max: 1200px;
        }

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

        html {
            scroll-behavior: smooth;
            font-family: var(--font-sans);
            background-color: var(--bg-color);
            color: var(--text-main);
        }

        body {
            line-height: 1.6;
            overflow-x: hidden;
            background-image: 
                radial-gradient(circle at 10% 20%, rgba(127, 0, 255, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(0, 242, 254, 0.08) 0%, transparent 40%);
            background-attachment: fixed;
        }

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

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

        a:hover {
            color: var(--secondary);
            text-shadow: 0 0 8px var(--secondary-glow);
        }

        /* 霓虹发光字与按钮 */
        .neon-text-primary {
            color: var(--primary);
            text-shadow: 0 0 10px var(--primary-glow);
        }

        .neon-text-secondary {
            color: var(--secondary);
            text-shadow: 0 0 10px var(--secondary-glow);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 12px 32px;
            font-weight: 600;
            border-radius: 50px;
            transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
            cursor: pointer;
            border: none;
            font-size: 1rem;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            color: #000;
            box-shadow: 0 0 15px rgba(0, 242, 254, 0.3);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(243, 85, 218, 0.6);
            color: #fff;
        }

        .btn-outline {
            background: transparent;
            color: var(--primary);
            border: 1px solid var(--primary);
            box-shadow: inset 0 0 5px rgba(0, 242, 254, 0.1);
        }

        .btn-outline:hover {
            background: rgba(0, 242, 254, 0.1);
            border-color: var(--secondary);
            color: var(--text-main);
            box-shadow: 0 0 15px var(--primary-glow);
        }

        /* 顶部导航 */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            z-index: 1000;
            background: rgba(8, 9, 18, 0.85);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            transition: all 0.3s ease;
        }

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

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

        .logo-wrap img {
            height: 35px;
            filter: drop-shadow(0 0 5px var(--primary-glow));
        }

        .logo-text {
            font-size: 1.3rem;
            font-weight: 800;
            letter-spacing: 1px;
            background: linear-gradient(to right, #fff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        .nav-menu a {
            color: var(--text-muted);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 5px 0;
        }

        .nav-menu a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--primary);
            transition: width 0.3s ease;
        }

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

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

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

        .nav-toggle span {
            display: block;
            width: 25px;
            height: 2px;
            background-color: var(--text-main);
            transition: 0.3s;
        }

        /* 首屏 Hero - 无图片设计 */
        .hero {
            padding-top: 150px;
            padding-bottom: 80px;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 242, 254, 0.15) 0%, transparent 70%);
            transform: translate(-50%, -50%);
            z-index: -1;
            filter: blur(50px);
        }

        .hero-badge {
            display: inline-block;
            padding: 6px 16px;
            background: rgba(243, 85, 218, 0.1);
            border: 1px solid rgba(243, 85, 218, 0.3);
            border-radius: 50px;
            color: var(--secondary);
            font-size: 0.85rem;
            font-weight: 600;
            margin-bottom: 24px;
            letter-spacing: 1px;
            text-transform: uppercase;
            box-shadow: 0 0 10px rgba(243, 85, 218, 0.15);
        }

        .hero-title {
            font-size: 3rem;
            line-height: 1.25;
            font-weight: 800;
            margin-bottom: 24px;
            letter-spacing: -0.5px;
        }

        .hero-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: 1.2rem;
            color: var(--text-muted);
            max-width: 800px;
            margin: 0 auto 40px auto;
        }

        .hero-cta {
            display: flex;
            justify-content: center;
            gap: 16px;
            flex-wrap: wrap;
            margin-bottom: 48px;
        }

        /* 核心卖点简排 */
        .hero-features {
            display: flex;
            justify-content: center;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 30px;
            padding: 20px;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .hero-feat-item {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.95rem;
            color: var(--text-main);
        }

        .hero-feat-item svg {
            color: var(--primary);
            filter: drop-shadow(0 0 4px var(--primary-glow));
        }

        /* Section 通用样式 */
        section {
            padding: 100px 0;
            position: relative;
            border-bottom: 1px solid rgba(255, 255, 255, 0.03);
        }

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

        .section-tag {
            color: var(--primary);
            font-size: 0.85rem;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 2px;
            margin-bottom: 12px;
            display: block;
        }

        .section-title {
            font-size: 2.25rem;
            font-weight: 800;
            letter-spacing: -0.5px;
        }

        /* 数据指标卡片 */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
            gap: 24px;
        }

        .stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-glow);
            border-radius: 20px;
            padding: 32px 24px;
            text-align: center;
            transition: all 0.4s ease;
            position: relative;
            overflow: hidden;
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(180deg, rgba(0, 242, 254, 0.05), transparent);
            opacity: 0;
            transition: opacity 0.4s ease;
        }

        .stat-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
        }

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

        .stat-num {
            font-size: 3rem;
            font-weight: 800;
            color: var(--text-main);
            line-height: 1;
            margin-bottom: 12px;
            background: linear-gradient(135deg, #fff, var(--primary));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

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

        /* 服务能力与解决方案卡片 */
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 30px;
        }

        .info-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 24px;
            padding: 40px 32px;
            transition: all 0.4s ease;
            position: relative;
        }

        .info-card:hover {
            transform: translateY(-8px);
            border-color: rgba(243, 85, 218, 0.4);
            box-shadow: 0 15px 40px rgba(243, 85, 218, 0.15);
        }

        .info-card-icon {
            width: 60px;
            height: 60px;
            border-radius: 16px;
            background: rgba(0, 242, 254, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            margin-bottom: 24px;
            border: 1px solid rgba(0, 242, 254, 0.2);
        }

        .info-card:hover .info-card-icon {
            background: var(--primary);
            color: #000;
            box-shadow: 0 0 15px var(--primary-glow);
        }

        .info-card-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        /* 标签云样式 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .tag-cloud span {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            padding: 4px 12px;
            border-radius: 50px;
            font-size: 0.8rem;
            color: var(--text-muted);
            transition: all 0.3s;
        }

        .tag-cloud span:hover {
            background: rgba(0, 242, 254, 0.1);
            color: var(--primary);
            border-color: var(--primary);
        }

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

        .steps-container::before {
            content: '';
            position: absolute;
            top: 0;
            bottom: 0;
            left: 50%;
            width: 2px;
            background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
            transform: translateX(-50%);
        }

        .step-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 60px;
            position: relative;
        }

        .step-item:nth-child(even) {
            flex-direction: row-reverse;
        }

        .step-badge {
            width: 48px;
            height: 48px;
            background: var(--bg-color);
            border: 3px solid var(--primary);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            color: var(--primary);
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            z-index: 2;
            box-shadow: 0 0 15px var(--primary-glow);
        }

        .step-content {
            width: 45%;
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 30px;
            border-radius: 20px;
            box-shadow: 0 5px 15px rgba(0,0,0,0.2);
        }

        /* 对比评测表格与样式 */
        .table-responsive {
            width: 100%;
            overflow-x: auto;
            border-radius: 16px;
            border: 1px solid rgba(255, 255, 255, 0.05);
            background: var(--card-bg);
        }

        .compare-table {
            width: 100%;
            border-collapse: collapse;
            text-align: left;
            min-width: 700px;
        }

        .compare-table th, .compare-table td {
            padding: 18px 24px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        .compare-table th {
            background: rgba(0, 242, 254, 0.03);
            color: var(--primary);
            font-weight: 700;
        }

        .compare-table tr:hover td {
            background: rgba(255, 255, 255, 0.01);
        }

        .rating-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(243, 85, 218, 0.15);
            border: 1px solid var(--secondary);
            padding: 6px 12px;
            border-radius: 8px;
            font-weight: 800;
            color: var(--secondary);
        }

        /* 案例展示 */
        .case-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 30px;
        }

        .case-card {
            background: var(--card-bg);
            border-radius: 24px;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all 0.4s ease;
        }

        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(0, 242, 254, 0.15);
        }

        .case-img-wrap {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: #1e293b;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .case-info {
            padding: 24px;
        }

        .case-tag {
            color: var(--primary);
            font-size: 0.8rem;
            font-weight: 600;
            margin-bottom: 8px;
            display: inline-block;
        }

        .case-title {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
        }

        .case-desc {
            color: var(--text-muted);
            font-size: 0.9rem;
        }

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

        .review-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.03);
            border-radius: 20px;
            padding: 30px;
            position: relative;
        }

        .review-card::after {
            content: '“';
            position: absolute;
            top: 20px;
            right: 30px;
            font-size: 5rem;
            color: rgba(255, 255, 255, 0.05);
            font-family: serif;
            line-height: 1;
        }

        .review-text {
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-bottom: 24px;
            position: relative;
            z-index: 1;
        }

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

        .user-avatar-placeholder {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            color: #000;
        }

        .user-info h4 {
            font-size: 0.95rem;
            font-weight: 600;
        }

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

        /* FAQ折叠面板 */
        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            margin-bottom: 16px;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .faq-trigger {
            width: 100%;
            padding: 20px 24px;
            background: none;
            border: none;
            color: var(--text-main);
            font-size: 1.05rem;
            font-weight: 600;
            text-align: left;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .faq-trigger svg {
            flex-shrink: 0;
            color: var(--primary);
            transition: transform 0.3s ease;
        }

        .faq-content {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease;
            padding: 0 24px;
            color: var(--text-muted);
            font-size: 0.95rem;
        }

        .faq-item.active .faq-trigger svg {
            transform: rotate(180deg);
        }

        .faq-item.active .faq-content {
            padding-bottom: 20px;
            max-height: 200px; /* 能够容纳内容的合理高度 */
        }

        /* 表单区域 */
        .contact-section-inner {
            display: grid;
            grid-template-columns: 1fr 1.2fr;
            gap: 50px;
            align-items: start;
        }

        .contact-info-wrap {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 24px;
            padding: 40px;
        }

        .contact-info-title {
            font-size: 1.6rem;
            font-weight: 700;
            margin-bottom: 24px;
        }

        .contact-channels {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 30px;
        }

        .channel-item {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .channel-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: rgba(0, 242, 254, 0.05);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            border: 1px solid rgba(0, 242, 254, 0.1);
        }

        .channel-text p:first-child {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .channel-text p:last-child {
            font-weight: 600;
            color: var(--text-main);
        }

        .qr-codes {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 16px;
        }

        .qr-item {
            text-align: center;
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.04);
            border-radius: 12px;
            padding: 16px;
        }

        .qr-item img {
            width: 100%;
            max-width: 120px;
            aspect-ratio: 1;
            margin: 0 auto 8px auto;
            display: block;
            border-radius: 8px;
        }

        .qr-item span {
            font-size: 0.8rem;
            color: var(--text-muted);
        }

        .form-wrap {
            background: var(--card-bg);
            border: 1px solid rgba(0, 242, 254, 0.15);
            border-radius: 24px;
            padding: 40px;
            box-shadow: 0 15px 40px rgba(0, 242, 254, 0.05);
        }

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

        .form-group label {
            display: block;
            font-size: 0.9rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            font-weight: 500;
        }

        .form-control {
            width: 100%;
            background: rgba(8, 9, 18, 0.6);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            padding: 12px 16px;
            color: var(--text-main);
            font-size: 0.95rem;
            transition: all 0.3s;
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
        }

        /* 资讯文章列表 */
        .article-list {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
            gap: 24px;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            border-radius: 16px;
            padding: 24px;
            transition: all 0.3s;
        }

        .article-card:hover {
            border-color: var(--primary);
            transform: translateY(-3px);
        }

        .article-date {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-bottom: 8px;
            display: block;
        }

        .article-title {
            font-size: 1.1rem;
            font-weight: 600;
            line-height: 1.4;
            margin-bottom: 12px;
        }

        .article-title a {
            color: var(--text-main);
        }

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

        /* 页脚与友情链接 */
        .footer {
            background: #04050a;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 60px 0 30px 0;
            color: var(--text-muted);
            font-size: 0.9rem;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 0.9rem;
        }

        .footer-col h5 {
            color: var(--text-main);
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 20px;
            position: relative;
        }

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

        .footer-links a {
            color: var(--text-muted);
        }

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

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        .friend-links {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
        }

        .friend-links a {
            color: var(--text-muted);
            font-size: 0.85rem;
        }

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

        /* 悬浮客服 */
        .floating-contact {
            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: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            color: #000;
            box-shadow: 0 4px 15px rgba(0, 242, 254, 0.3);
            cursor: pointer;
            transition: all 0.3s;
            position: relative;
        }

        .float-btn:hover {
            transform: scale(1.1);
            box-shadow: 0 6px 20px rgba(243, 85, 218, 0.5);
        }

        .float-qr-tooltip {
            position: absolute;
            bottom: 60px;
            right: 0;
            background: var(--card-bg);
            border: 1px solid var(--primary);
            padding: 16px;
            border-radius: 12px;
            box-shadow: 0 10px 25px rgba(0,0,0,0.5);
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s;
            width: 150px;
            text-align: center;
        }

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

        .float-qr-tooltip img {
            width: 100%;
            border-radius: 8px;
            margin-bottom: 8px;
        }

        .float-qr-tooltip span {
            font-size: 0.75rem;
            color: var(--text-main);
            display: block;
        }

        /* 响应式调整 */
        @media (max-width: 992px) {
            .contact-section-inner {
                grid-template-columns: 1fr;
            }
            .hero-title {
                font-size: 2.2rem;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 70px;
                left: 0;
                width: 100%;
                background: var(--bg-color);
                border-bottom: 1px solid rgba(255,255,255,0.05);
                padding: 20px;
                gap: 15px;
            }
            .nav-menu.active {
                display: flex;
            }
            .nav-toggle {
                display: flex;
            }
            .steps-container::before {
                left: 20px;
            }
            .step-item {
                flex-direction: row !important;
                justify-content: flex-start;
                padding-left: 50px;
            }
            .step-badge {
                left: 20px;
                transform: translateX(-50%);
            }
            .step-content {
                width: 100%;
            }
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }