:root {
            --bg-color: #06050c;
            --card-bg: rgba(20, 16, 38, 0.7);
            --card-border: rgba(255, 0, 127, 0.2);
            --primary: #ff007f;
            --secondary: #8a2be2;
            --cyan: #00f0ff;
            --text-main: #f3f3f6;
            --text-muted: #a2a0b5;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            --container-width: 1200px;
        }

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

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

        /* 霓虹网格背景 */
        body::before {
            content: '';
            position: fixed;
            top: 0;
            left: 0;
            width: 100vw;
            height: 100vh;
            background: 
                linear-gradient(rgba(138, 43, 226, 0.05) 1px, transparent 1px),
                linear-gradient(90deg, rgba(138, 43, 226, 0.05) 1px, transparent 1px);
            background-size: 40px 40px;
            z-index: -1;
            pointer-events: none;
        }

        /* 全局发光氛围球 */
        .neon-glow {
            position: absolute;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(255, 0, 127, 0.15) 0%, transparent 70%);
            border-radius: 50%;
            filter: blur(60px);
            pointer-events: none;
            z-index: -1;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: var(--transition);
        }

        img {
            max-width: 100%;
            height: auto;
            border-radius: 8px;
        }

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

        section {
            padding: 100px 0;
            position: relative;
        }

        /* 渐变标题 */
        .section-title {
            text-align: center;
            font-size: 2.5rem;
            font-weight: 800;
            margin-bottom: 50px;
            background: linear-gradient(135deg, var(--text-main) 30%, var(--primary) 70%, var(--cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 30px rgba(255, 0, 127, 0.2);
        }

        .section-desc {
            text-align: center;
            color: var(--text-muted);
            max-width: 700px;
            margin: -40px auto 60px auto;
            font-size: 1.1rem;
        }

        /* 顶部导航 */
        header {
            position: sticky;
            top: 0;
            background: rgba(6, 5, 12, 0.85);
            backdrop-filter: blur(12px);
            z-index: 1000;
            border-bottom: 1px solid rgba(255, 0, 127, 0.1);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 80px;
        }

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

        .logo-box img {
            height: 45px;
        }

        .nav-menu {
            display: flex;
            gap: 15px;
            list-style: none;
        }

        .nav-menu a {
            font-size: 0.95rem;
            color: var(--text-muted);
            font-weight: 500;
        }

        .nav-menu a:hover {
            color: var(--primary);
            text-shadow: 0 0 8px var(--primary);
        }

        .nav-btn {
            background: linear-gradient(90deg, var(--primary), var(--secondary));
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 600;
            border: none;
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
            cursor: pointer;
            transition: var(--transition);
            color: #fff;
        }

        .nav-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 25px rgba(255, 0, 127, 0.7);
        }

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

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

        /* Hero首屏 - 严禁出现图片 */
        .hero {
            padding: 140px 0 100px 0;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
            position: relative;
        }

        .hero-content {
            max-width: 900px;
            z-index: 2;
        }

        .hero h1 {
            font-size: 3.5rem;
            line-height: 1.2;
            font-weight: 900;
            margin-bottom: 25px;
            background: linear-gradient(135deg, #fff 10%, var(--primary) 50%, var(--cyan) 100%);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-shadow: 0 0 40px rgba(255, 0, 127, 0.35);
        }

        .hero p {
            font-size: 1.3rem;
            color: var(--text-muted);
            margin-bottom: 40px;
            line-height: 1.8;
        }

        .hero-btns {
            display: flex;
            gap: 20px;
            justify-content: center;
            flex-wrap: wrap;
            margin-bottom: 50px;
        }

        .btn-glow {
            background: linear-gradient(90deg, var(--cyan), var(--secondary));
            padding: 16px 36px;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 700;
            color: #fff;
            box-shadow: 0 0 20px rgba(0, 240, 255, 0.4);
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .btn-glow:hover {
            transform: translateY(-3px);
            box-shadow: 0 0 35px rgba(0, 240, 255, 0.7);
        }

        .btn-outline {
            background: transparent;
            border: 2px solid rgba(255, 255, 255, 0.2);
            padding: 14px 34px;
            border-radius: 30px;
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--text-main);
            transition: var(--transition);
        }

        .btn-outline:hover {
            border-color: var(--primary);
            background: rgba(255, 0, 127, 0.1);
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.3);
        }

        /* 数据指标卡片 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 25px;
            margin-top: 30px;
        }

        .metric-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 30px;
            border-radius: 16px;
            text-align: center;
            backdrop-filter: blur(10px);
            transition: var(--transition);
        }

        .metric-card:hover {
            transform: translateY(-5px);
            border-color: var(--primary);
            box-shadow: 0 10px 30px rgba(255, 0, 127, 0.15);
        }

        .metric-num {
            font-size: 2.8rem;
            font-weight: 800;
            color: var(--cyan);
            margin-bottom: 5px;
            text-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
        }

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

        /* 卡片基础样式 */
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 30px;
        }

        .custom-card {
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 35px 25px;
            backdrop-filter: blur(10px);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .custom-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--cyan));
            opacity: 0;
            transition: var(--transition);
        }

        .custom-card:hover {
            transform: translateY(-8px);
            border-color: rgba(255, 0, 127, 0.4);
            box-shadow: 0 15px 35px rgba(255, 0, 127, 0.15);
        }

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

        .card-icon {
            font-size: 2.5rem;
            margin-bottom: 20px;
            display: inline-block;
        }

        .card-title {
            font-size: 1.35rem;
            font-weight: 700;
            margin-bottom: 15px;
            color: #fff;
        }

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

        /* 关于我们 */
        .about-wrap {
            display: grid;
            grid-template-columns: 1.2fr 0.8fr;
            gap: 50px;
            align-items: center;
        }

        .about-text {
            font-size: 1.1rem;
            color: var(--text-muted);
            line-height: 1.8;
        }

        .about-text p {
            margin-bottom: 20px;
        }

        .about-highlight {
            border-left: 4px solid var(--primary);
            padding-left: 20px;
            margin: 25px 0;
            font-style: italic;
            color: var(--text-main);
        }

        .about-feature-list {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-top: 30px;
        }

        .about-feature-item {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 15px;
            border-radius: 8px;
            font-size: 0.95rem;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .about-feature-item::before {
            content: '✓';
            color: var(--cyan);
            font-weight: bold;
        }

        /* 标签云组件 */
        .tag-cloud {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            justify-content: center;
            max-width: 1000px;
            margin: 0 auto;
        }

        .tag-item {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            padding: 8px 18px;
            border-radius: 20px;
            font-size: 0.9rem;
            color: var(--text-main);
            transition: var(--transition);
            cursor: pointer;
        }

        .tag-item:hover {
            background: rgba(255, 0, 127, 0.15);
            border-color: var(--primary);
            color: #fff;
            transform: scale(1.05);
            box-shadow: 0 0 15px rgba(255, 0, 127, 0.3);
        }

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

        .process-step {
            position: relative;
            text-align: center;
            padding: 30px 20px;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
        }

        .step-num {
            width: 50px;
            height: 50px;
            border-radius: 50px;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 1.3rem;
            margin: 0 auto 20px auto;
            box-shadow: 0 0 15px var(--primary);
        }

        /* 对比评测表格样式 */
        .table-responsive {
            overflow-x: auto;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            border-radius: 16px;
            padding: 20px;
            backdrop-filter: blur(10px);
        }

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

        th, td {
            padding: 16px 20px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
        }

        th {
            font-weight: 700;
            color: var(--cyan);
            font-size: 1.05rem;
        }

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

        .rating-box {
            display: flex;
            align-items: center;
            gap: 15px;
            background: rgba(255, 0, 127, 0.08);
            border: 1px dashed var(--primary);
            padding: 20px;
            border-radius: 12px;
            margin-bottom: 30px;
        }

        .rating-score {
            font-size: 2.5rem;
            font-weight: 900;
            color: var(--primary);
        }

        .rating-stars {
            color: #ffd700;
            font-size: 1.3rem;
        }

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

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

        .case-card:hover {
            transform: translateY(-5px);
            border-color: var(--cyan);
            box-shadow: 0 10px 30px rgba(0, 240, 255, 0.15);
        }

        .case-img-wrap {
            position: relative;
            aspect-ratio: 16/10;
            overflow: hidden;
            background: #110f24;
        }

        .case-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 0;
            transition: var(--transition);
        }

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

        .case-info {
            padding: 25px;
        }

        .case-tag {
            background: rgba(0, 240, 255, 0.1);
            color: var(--cyan);
            font-size: 0.75rem;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: bold;
            display: inline-block;
            margin-bottom: 12px;
        }

        /* 表单区域 */
        .form-wrap {
            max-width: 700px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--card-border);
            padding: 45px;
            border-radius: 20px;
            backdrop-filter: blur(10px);
        }

        .form-group {
            margin-bottom: 25px;
            display: flex;
            flex-direction: column;
            gap: 8px;
        }

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

        .form-control {
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 8px;
            padding: 14px 18px;
            color: #fff;
            font-size: 1rem;
            transition: var(--transition);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary);
            background: rgba(255, 0, 127, 0.05);
            box-shadow: 0 0 10px rgba(255, 0, 127, 0.2);
        }

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

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

        .testimonial-user {
            display: flex;
            align-items: center;
            gap: 15px;
            margin-bottom: 20px;
        }

        .user-avatar-placeholder {
            width: 45px;
            height: 45px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            font-size: 1.1rem;
        }

        .user-name {
            font-weight: 700;
            color: #fff;
            font-size: 1rem;
        }

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

        .testimonial-content {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.6;
        }

        /* FAQ折叠面板 */
        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }

        .faq-item {
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
            padding: 20px 0;
        }

        .faq-question {
            font-size: 1.1rem;
            font-weight: 700;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--primary);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.3s ease-out;
            color: var(--text-muted);
            font-size: 0.95rem;
            margin-top: 0;
        }

        .faq-item.active .faq-answer {
            max-height: 200px;
            margin-top: 15px;
        }

        .faq-icon::after {
            content: '+';
            font-size: 1.5rem;
            transition: var(--transition);
            display: inline-block;
        }

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

        /* 术语百科 & 自助排查 */
        .infobox-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
        }

        .infobox {
            background: var(--card-bg);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 35px;
            border-radius: 16px;
        }

        .infobox-title {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 25px;
            color: var(--cyan);
            border-left: 4px solid var(--cyan);
            padding-left: 15px;
        }

        .infobox-list {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }

        .infobox-item strong {
            color: var(--text-main);
        }

        .infobox-item p {
            color: var(--text-muted);
            font-size: 0.9rem;
            margin-top: 4px;
        }

        /* 知识库/资讯 */
        .news-list {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
            gap: 25px;
        }

        .news-item {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 25px;
            border-radius: 12px;
            transition: var(--transition);
        }

        .news-item:hover {
            background: rgba(255, 255, 255, 0.04);
            border-color: var(--primary);
        }

        .news-title {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 12px;
            line-height: 1.4;
        }

        .news-link {
            color: var(--cyan);
            font-size: 0.9rem;
            display: inline-block;
            margin-top: 15px;
            font-weight: 600;
        }

        .news-link:hover {
            text-shadow: 0 0 8px var(--cyan);
        }

        /* 联系我们 & 二维码 */
        .contact-wrap {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 50px;
            align-items: center;
        }

        .contact-info {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }

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

        .contact-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            background: rgba(255, 0, 127, 0.1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-weight: bold;
        }

        .qr-area {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 30px;
            text-align: center;
        }

        .qr-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.05);
            padding: 20px;
            border-radius: 12px;
        }

        .qr-card img {
            width: 140px;
            height: 140px;
            margin: 0 auto 15px auto;
            display: block;
        }

        /* 页脚与友情链接 */
        footer {
            background: #030206;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding: 80px 0 30px 0;
            font-size: 0.9rem;
            color: var(--text-muted);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr repeat(3, 1fr);
            gap: 40px;
            margin-bottom: 50px;
        }

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

        .footer-title {
            color: #fff;
            font-weight: 700;
            margin-bottom: 20px;
            font-size: 1rem;
        }

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

        .friend-links-box {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            margin-bottom: 30px;
        }

        .friend-links-box h4 {
            color: #fff;
            margin-bottom: 15px;
            font-size: 0.95rem;
        }

        .friend-links-container {
            display: flex;
            flex-wrap: wrap;
            gap: 15px 25px;
        }

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

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

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 30px;
            flex-wrap: wrap;
            gap: 20px;
        }

        /* 侧边浮动 */
        .floating-kf {
            position: fixed;
            bottom: 40px;
            right: 40px;
            z-index: 999;
            background: linear-gradient(135deg, var(--primary), var(--secondary));
            width: 60px;
            height: 60px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 5px 20px rgba(255, 0, 127, 0.5);
            cursor: pointer;
            transition: var(--transition);
        }

        .floating-kf:hover {
            transform: scale(1.1);
            box-shadow: 0 8px 25px rgba(255, 0, 127, 0.7);
        }

        .floating-kf::after {
            content: '客服';
            font-size: 0.75rem;
            color: #fff;
            font-weight: bold;
        }

        .kf-popover {
            position: absolute;
            bottom: 75px;
            right: 0;
            background: #100e23;
            border: 1px solid var(--primary);
            padding: 15px;
            border-radius: 12px;
            text-align: center;
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
            display: none;
            width: 180px;
        }

        .kf-popover img {
            width: 140px;
            height: 140px;
        }

        .floating-kf:hover .kf-popover {
            display: block;
        }

        /* 响应式适配 */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .about-wrap {
                grid-template-columns: 1fr;
            }
            .case-grid, .testimonial-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-menu {
                display: none;
                flex-direction: column;
                position: absolute;
                top: 80px;
                left: 0;
                width: 100%;
                background: rgba(6, 5, 12, 0.98);
                padding: 30px;
                border-bottom: 1px solid rgba(255, 0, 127, 0.1);
                gap: 20px;
                text-align: center;
            }

            .nav-menu.active {
                display: flex;
            }

            .menu-toggle {
                display: flex;
            }

            .hero h1 {
                font-size: 2.2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .process-steps {
                grid-template-columns: 1fr;
            }

            .case-grid, .testimonial-grid {
                grid-template-columns: 1fr;
            }

            .contact-wrap, .infobox-grid {
                grid-template-columns: 1fr;
            }

            .qr-area {
                grid-template-columns: 1fr;
            }

            .footer-grid {
                grid-template-columns: 1fr;
            }
        }