* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: "Microsoft YaHei", system-ui, sans-serif;
        }
        body {
            background-color: #ffffff;
            color: #222222;
            line-height: 1.7;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }
        .section {
            padding: 80px 0;
        }
        .section-title {
            font-size: 34px;
            font-weight: 700;
            text-align: center;
            margin-bottom: 12px;
        }
        .section-desc {
            text-align: center;
            color: #666;
            font-size: 17px;
            max-width: 820px;
            margin: 0 auto 60px;
        }
        .btn-main {
            display: inline-block;
            padding: 16px 42px;
            background: #0057ff;
            color: #fff;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size: 18px;
            box-shadow: 0 4px 16px rgba(0,87,255,0.18);
            transition: all 0.3s ease;
        }
        .btn-main:hover {
            transform: translateY(-3px);
            box-shadow: 0 8px 24px rgba(0,87,255,0.24);
            background: #0044dd;
        }
        .btn-light {
            display: inline-block;
            padding: 15px 40px;
            border: 2px solid #0057ff;
            color: #0057ff;
            border-radius: 50px;
            text-decoration: none;
            font-weight: 600;
            font-size:18px;
            transition: all 0.3s ease;
            margin-left:16px;
        }
        .btn-light:hover{
            background:#0057ff;
            color:#fff;
        }
        /* 瀵艰埅鏍� 鎮诞鍥哄畾 */
        nav {
            position: sticky;
            top:0;
            z-index:999;
            background:#fff;
            border-bottom:1px solid #f1f1f1;
            padding:20px 0;
        }
        .nav-wrap{
            display:flex;
            justify-content:space-between;
            align-items:center;
        }
        .logo{
            font-size:26px;
            font-weight:800;
            color:#0057ff;
        }
        .logo small{
            font-weight:400;
            color:#444;
            font-size:16px;
            margin-left:6px;
        }
        .nav-menu a{
            text-decoration:none;
            color:#333;
            margin-left:30px;
            font-size:16px;
            transition: color 0.3s;
        }
        .nav-menu a:hover{
            color:#0057ff;
        }
        /* 棣栧睆Hero */
        .hero{
            padding:110px 0;
            text-align:center;
        }
        .hero h1{
            font-size: clamp(34px,6vw,60px);
            line-height:1.2;
            margin-bottom:22px;
        }
        .hero h1 span{
            color:#0057ff;
        }
        .hero p{
            font-size: clamp(18px,2vw,22px);
            color:#555;
            max-width:900px;
            margin:0 auto 36px;
        }
        .hero-tags{
            display:flex;
            flex-wrap:wrap;
            justify-content:center;
            gap:12px;
            margin-bottom:48px;
        }
        .hero-tags span{
            padding:7px 20px;
            background:#f0f6ff;
            color:#0057ff;
            border-radius:30px;
            font-size:15px;
        }
        /* 瀹㈡埛鐥涚偣鏉垮潡 */
        .pain-grid{
            display:grid;
            grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
            gap:26px;
        }
        .pain-card{
            padding:32px;
            border:1px solid #eee;
            border-radius:16px;
            transition:0.3s;
        }
        .pain-card:hover{
            border-color:#0057ff;
            transform: translateY(-4px);
        }
        .pain-card h3{
            font-size:20px;
            margin-bottom:12px;
        }
        .pain-card p{
            color:#666;
        }
        /* GEO瀹氫箟鏉垮潡 */
        .define-block{
            background:#f8faff;
            padding:50px;
            border-radius:20px;
            text-align:center;
        }
        .define-block h3{
            font-size:24px;
            color:#0057ff;
            margin-bottom:18px;
        }
        /* 鏈嶅姟椤圭洰 */
        .service-grid{
            display:grid;
            grid-template-columns: repeat(auto-fit, minmax(300px,1fr));
            gap:30px;
        }
        .service-card{
            padding:38px 28px;
            border:1px solid #f0f0f0;
            border-radius:18px;
            transition:0.3s;
        }
        .service-card:hover{
            box-shadow:0 10px 35px rgba(0,0,0,0.07);
        }
        .service-card h3{
            font-size:22px;
            margin-bottom:14px;
        }
        .service-card p{
            color:#666;
        }
        /* 鏍稿績浼樺娍 */
        .adv-grid{
            display:grid;
            grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
            gap:24px;
        }
        .adv-item{
            text-align:center;
            padding:30px 20px;
        }
        .adv-item h3{
            margin:14px 0 8px;
            font-size:20px;
        }
        .adv-item p{
            color:#666;
        }
        /* 鏈嶅姟娴佺▼ */
        .process-grid{
            display:grid;
            grid-template-columns: repeat(auto-fit, minmax(180px,1fr));
            gap:20px;
        }
        .process-item{
            text-align:center;
        }
        .num-circle{
            width:48px;
            height:48px;
            line-height:48px;
            border-radius:50%;
            background:#0057ff;
            color:#fff;
            font-weight:bold;
            margin:0 auto 14px;
            font-size:18px;
        }
        /* 鏁版嵁鎴愭灉鏉垮潡 */
        .data-grid{
            display:grid;
            grid-template-columns: repeat(4,1fr);
            gap:24px;
            text-align:center;
        }
        .data-item h2{
            font-size:42px;
            color:#0057ff;
        }
        .data-item p{
            color:#666;
        }
        /* 瀹㈡埛妗堜緥 */
        .case-grid{
            display:grid;
            grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
            gap:26px;
        }
        .case-card{
            border:1px solid #eee;
            border-radius:16px;
            padding:30px;
        }
        .case-card h4{
            font-size:20px;
            margin-bottom:10px;
        }
        .case-card p{
            color:#666;
        }
        /* FAQ */
        .faq-wrap{
            max-width:900px;
            margin:0 auto;
        }
        .faq-item{
            border:1px solid #eee;
            border-radius:12px;
            margin-bottom:16px;
            overflow:hidden;
        }
        .faq-q{
            padding:20px 24px;
            font-weight:600;
            cursor:pointer;
            display:flex;
            justify-content:space-between;
        }
        .faq-a{
            padding:0 24px 20px;
            color:#666;
        }
        /* 鍜ㄨ杞寲鍖哄潡 */
        .cta-block{
            background:#f8faff;
            border-radius:20px;
            padding:60px 30px;
            text-align:center;
        }
        /* 鎮诞瀹㈡湇 */
        .float-service{
            position:fixed;
            right:24px;
            bottom:30px;
            z-index:998;
        }
        .float-btn{
            width:60px;
            height:60px;
            background:#0057ff;
            border-radius:50%;
            color:#fff;
            text-align:center;
            line-height:60px;
            text-decoration:none;
            box-shadow:0 4px 20px rgba(0,87,255,0.25);
        }
        footer{
            padding:40px 0;
            text-align:center;
            border-top:1px solid #f1f1f1;
            color:#777;
            font-size:15px;
        }
        /* 绉诲姩绔€傞厤 */
        @media(max-width:768px){
            .nav-menu{
                display:none;
            }
            .hero{
                padding:70px 0;
            }
            .data-grid{
                grid-template-columns: repeat(2,1fr);
            }
            .section{
                padding:50px 0;
            }
        }