:root{
      --bg:#f6f7fb;
      --panel:#ffffff;
      --panel-2:#f2f5ff;
      --text:#172033;
      --muted:#5e6a82;
      --line:#d9e0ef;
      --primary:#6c4cff;
      --primary-2:#ff4f7b;
      --accent:#00b8a9;
      --warm:#ffbf4d;
      --shadow:0 18px 50px rgba(25,39,79,.10);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(108,76,255,.10), transparent 34%),
        radial-gradient(circle at top right, rgba(255,79,123,.09), transparent 28%),
        linear-gradient(180deg, #fff 0%, var(--bg) 42%, #f7f8fc 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky; top:0; z-index:40;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(217,224,239,.8);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      min-height:76px; padding:10px 0;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;border:1px solid var(--line);padding:6px}
    .brand strong{display:block;font-size:18px;line-height:1.1}
    .brand span{display:block;font-size:12px;color:var(--muted);margin-top:4px}
    .nav-actions{display:flex; align-items:center; gap:10px; flex-wrap:wrap; justify-content:flex-end}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px;font-weight:700;color:var(--text)}
    .nav-links{display:flex; align-items:center; gap:16px; flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#334; padding:8px 10px;border-radius:999px; transition:.2s}
    .nav-links a:hover{background:#eef2ff;color:#1b2450}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border-radius:999px; padding:12px 18px; border:1px solid transparent;
      font-weight:700; transition:.25s ease; cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-2)); color:#fff; box-shadow:0 12px 26px rgba(108,76,255,.24)}
    .btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 30px rgba(108,76,255,.28)}
    .btn-ghost{background:#fff;border-color:var(--line); color:var(--text)}
    .btn-ghost:hover{border-color:#bbc6e0; transform:translateY(-1px)}
    main{padding:26px 0 10px}
    section{padding:22px 0}
    .hero{
      padding:24px 0 14px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch;
    }
    .hero-card, .panel, .info-card, .review-card, .faq-item, .article-card, .case-card, .price-card, .form-card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(217,224,239,.9);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-card{padding:30px; position:relative; overflow:hidden}
    .hero-card::before,.hero-card::after{
      content:""; position:absolute; border-radius:50%;
      background:radial-gradient(circle, rgba(108,76,255,.16), transparent 62%);
      pointer-events:none;
    }
    .hero-card::before{width:260px;height:260px; right:-90px; top:-90px}
    .hero-card::after{width:200px;height:200px; right:45px; bottom:-90px; background:radial-gradient(circle, rgba(255,79,123,.15), transparent 62%)}
    .kicker{
      display:inline-flex; align-items:center; gap:8px;
      font-size:13px; font-weight:700; color:#4230d8;
      background:linear-gradient(135deg, rgba(108,76,255,.10), rgba(255,79,123,.10));
      padding:8px 12px; border-radius:999px; border:1px solid rgba(108,76,255,.12);
    }
    h1{font-size:clamp(34px,5vw,56px); line-height:1.08; margin:16px 0 14px; letter-spacing:-.04em}
    .hero p{font-size:16px; line-height:1.8; color:var(--muted); margin:0}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:24px}
    .hero-stats{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px; margin-top:24px
    }
    .stat{
      background:linear-gradient(180deg,#fff,#f7f8ff);
      border:1px solid var(--line); border-radius:18px; padding:16px
    }
    .stat strong{display:block;font-size:24px;line-height:1.1}
    .stat span{display:block;font-size:13px;color:var(--muted);margin-top:6px}
    .hero-side{display:grid; gap:14px}
    .hero-side .panel{padding:18px}
    .mini-title{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:14px}
    .mini-title h2,.mini-title h3{margin:0; font-size:18px}
    .tag-list,.cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag,.chip{
      padding:8px 12px; border-radius:999px; background:#f4f7ff; border:1px solid #dde5fb;
      color:#24324f; font-size:13px; font-weight:600
    }
    .photo-strip{display:grid; grid-template-columns:1fr 1fr; gap:10px}
    .photo-strip img{border-radius:18px; width:100%; aspect-ratio:1/1; object-fit:cover; border:1px solid var(--line)}
    .section-head{
      display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:16px
    }
    .section-head h2{margin:0; font-size:28px}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:720px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:16px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:16px}
    .info-card,.review-card,.case-card,.article-card,.price-card,.form-card,.faq-item,.panel{padding:20px}
    .info-card h3,.review-card h3,.case-card h3,.article-card h3,.price-card h3{margin:0 0 10px; font-size:18px}
    .info-card p,.review-card p,.case-card p,.article-card p,.price-card p{margin:0; color:var(--muted); line-height:1.8}
    .metric-row{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .metric{
      padding:18px; border-radius:18px; background:linear-gradient(180deg,#fff,#f4f7ff);
      border:1px solid var(--line)
    }
    .metric strong{display:block;font-size:22px}
    .metric span{display:block;color:var(--muted);font-size:13px;margin-top:6px}
    .timeline{display:grid; gap:12px}
    .step{
      display:flex; gap:14px; align-items:flex-start; padding:16px; border-radius:18px;
      background:#fff; border:1px solid var(--line)
    }
    .step i{
      flex:0 0 32px; width:32px; height:32px; border-radius:50%;
      display:grid; place-items:center; font-style:normal; font-weight:800; color:#fff;
      background:linear-gradient(135deg,var(--accent),#4e8cff)
    }
    .step strong{display:block;margin-bottom:6px}
    .step span{color:var(--muted);line-height:1.7}
    .table-wrap{overflow:auto; border-radius:18px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:15px 16px; text-align:left; border-bottom:1px solid #edf1f8; vertical-align:top}
    th{background:#f6f8ff; color:#26314d; font-size:14px}
    td{color:#324056; line-height:1.7; font-size:14px}
    .good{color:#0f8a6a; font-weight:700}
    .highlight{background:linear-gradient(135deg, rgba(108,76,255,.08), rgba(255,79,123,.08))}
    .rating{
      display:inline-flex; gap:4px; color:#ff9a00; font-size:18px; letter-spacing:2px
    }
    .accordion{display:grid; gap:12px}
    .faq-item{padding:0; overflow:hidden}
    .faq-q{
      width:100%; border:none; background:transparent; cursor:pointer; text-align:left;
      padding:18px 18px; font-size:16px; font-weight:700; color:var(--text);
      display:flex; justify-content:space-between; gap:16px; align-items:center
    }
    .faq-q span{color:var(--muted); font-size:18px}
    .faq-a{max-height:0; overflow:hidden; transition:max-height .28s ease; padding:0 18px}
    .faq-a p{margin:0; color:var(--muted); line-height:1.8; padding-bottom:18px}
    .faq-item.active .faq-a{max-height:220px}
    .review-meta{display:flex; justify-content:space-between; gap:12px; align-items:center; margin-bottom:10px}
    .review-meta strong{font-size:16px}
    .review-meta span{color:var(--muted); font-size:13px}
    .article-card a{display:inline-flex; margin-top:14px; color:#4230d8; font-weight:700}
    .form-grid{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    label{display:block; font-size:14px; font-weight:700; margin-bottom:8px}
    input,select,textarea{
      width:100%; border:1px solid var(--line); border-radius:14px; padding:13px 14px;
      font:inherit; color:var(--text); background:#fff; outline:none; transition:.2s
    }
    textarea{min-height:124px; resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#8a78ff; box-shadow:0 0 0 4px rgba(108,76,255,.10)}
    .full{grid-column:1 / -1}
    .footer-top{
      display:grid; grid-template-columns:1.1fr .9fr; gap:18px; align-items:start
    }
    footer{
      margin-top:10px; padding:18px 0 30px; color:#334155
    }
    .footer-card{padding:22px; background:#fff; border:1px solid var(--line); border-radius:22px}
    .footer-note{display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap; align-items:center; margin-top:14px; color:#59667d; font-size:13px}
    .float-tools{
      position:fixed; right:18px; bottom:18px; z-index:50; display:grid; gap:10px
    }
    .float-tools a,.float-tools button{
      width:52px; height:52px; border:none; border-radius:16px; box-shadow:var(--shadow);
      background:linear-gradient(135deg,var(--primary),var(--primary-2)); color:#fff; display:grid; place-items:center;
      cursor:pointer; font-size:20px; text-decoration:none
    }
    .wechat-card{
      position:fixed; right:18px; bottom:86px; z-index:50; width:260px; padding:14px;
      background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow); display:none
    }
    .wechat-card img{width:100%; border-radius:14px; border:1px solid var(--line)}
    .wechat-card p{margin:10px 0 0; font-size:13px; color:var(--muted); line-height:1.6}
    .show{display:block}
    .fade-up{animation:up .7s ease both}
    @keyframes up{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
    .hover-lift{transition:.25s ease}
    .hover-lift:hover{transform:translateY(-4px); box-shadow:0 22px 46px rgba(25,39,79,.12)}
    .mobile-only{display:none}
    .subtle{color:var(--muted)}
    .link-row{display:flex; flex-wrap:wrap; gap:10px}
    .link-row a{padding:9px 12px; background:#f5f7ff; border:1px solid #e0e7ff; border-radius:999px; font-size:13px}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.metric-row,.footer-top{grid-template-columns:1fr}
      .section-head,.nav{align-items:flex-start; flex-direction:column}
      .nav-actions{width:100%; justify-content:space-between}
      .nav-links{display:none; width:100%; padding:10px 0 4px}
      .nav-links.open{display:flex; flex-direction:column; align-items:flex-start; gap:8px}
      .menu-btn{display:inline-flex}
      .form-grid{grid-template-columns:1fr}
      .mobile-only{display:block}
      .wechat-card{width:min(260px, calc(100vw - 36px))}
    }