:root{
      --bg:#f6f7fb;
      --bg2:#eef3ff;
      --card:#ffffff;
      --card2:#fff7f0;
      --text:#172033;
      --muted:#5f6b85;
      --line:#dfe5f2;
      --primary:#5b5cff;
      --accent:#ff5d73;
      --accent2:#ffb347;
      --green:#14b8a6;
      --shadow:0 18px 50px rgba(17,24,39,.10);
      --shadow2:0 10px 28px rgba(91,92,255,.14);
      --radius:22px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(91,92,255,.12), transparent 28%),
        radial-gradient(circle at top right, rgba(255,93,115,.12), transparent 26%),
        linear-gradient(180deg, #fff 0%, var(--bg) 42%, #f8fbff 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:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,255,255,.82);
      border-bottom:1px solid rgba(223,229,242,.85);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px;
      padding:14px 0;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:42px; height:42px; object-fit:contain; border-radius:12px; background:#fff; box-shadow:0 8px 24px rgba(0,0,0,.08)}
    .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-links{display:flex; align-items:center; gap:18px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px; color:#34425f; padding:8px 10px; border-radius:999px; transition:.25s ease}
    .nav-links a:hover{background:#eef2ff; color:var(--primary)}
    .nav-cta{display:flex; gap:10px; align-items:center}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:1px solid transparent; border-radius:999px; padding:12px 16px;
      font-weight:700; font-size:14px; transition:.25s ease; cursor:pointer;
      box-shadow:0 8px 20px rgba(0,0,0,.06);
    }
    .btn-primary{background:linear-gradient(135deg, var(--primary), #7f54ff); color:#fff}
    .btn-secondary{background:#fff; color:var(--text); border-color:var(--line)}
    .btn:hover{transform:translateY(-2px); box-shadow:var(--shadow2)}
    .menu-btn{display:none; width:44px; height:44px; border-radius:14px; border:1px solid var(--line); background:#fff}
    .menu-btn span{display:block; width:18px; height:2px; background:var(--text); margin:4px auto; border-radius:2px}
    main{overflow:hidden}
    section{padding:72px 0}
    .hero{padding:34px 0 52px; position:relative}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:28px; align-items:stretch}
    .hero-card{
      position:relative; overflow:hidden; border-radius:28px; padding:34px;
      background:
        linear-gradient(135deg, rgba(91,92,255,.08), rgba(255,93,115,.08)),
        linear-gradient(180deg, #fff, #fafbff);
      border:1px solid rgba(223,229,242,.9);
      box-shadow:var(--shadow);
    }
    .hero-card:before,.hero-card:after{
      content:""; position:absolute; border-radius:50%; filter:blur(8px); opacity:.5;
    }
    .hero-card:before{width:180px;height:180px;right:-50px;top:-50px;background:rgba(255,93,115,.12)}
    .hero-card:after{width:220px;height:220px;left:-80px;bottom:-80px;background:rgba(91,92,255,.12)}
    .eyebrow{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
      background:#fff; border:1px solid rgba(223,229,242,.9); color:#6b3df0; font-size:13px; font-weight:700;
    }
    h1{font-size:clamp(34px, 5vw, 58px); line-height:1.06; margin:16px 0 14px; letter-spacing:-.02em}
    .lead{font-size:18px; line-height:1.8; color:var(--muted); max-width:58ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:24px}
    .hero-points{display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:12px; margin-top:24px}
    .mini{
      background:rgba(255,255,255,.88); border:1px solid rgba(223,229,242,.95); border-radius:18px; padding:16px;
    }
    .mini b{display:block; font-size:18px; margin-bottom:6px}
    .mini span{font-size:13px; color:var(--muted); line-height:1.6}
    .hero-side{
      display:grid; gap:14px;
    }
    .side-panel{
      border-radius:24px; padding:22px; border:1px solid rgba(223,229,242,.95);
      background:linear-gradient(180deg, #fff 0%, #fff9f4 100%); box-shadow:var(--shadow);
    }
    .stat-grid{display:grid; grid-template-columns:repeat(2, minmax(0,1fr)); gap:14px}
    .stat{
      padding:18px; border-radius:20px; background:#fff; border:1px solid var(--line);
    }
    .stat strong{display:block; font-size:28px; line-height:1}
    .stat span{display:block; margin-top:8px; color:var(--muted); font-size:13px; line-height:1.55}
    .section-head{display:flex; align-items:end; justify-content:space-between; gap:16px; margin-bottom:22px}
    .section-head h2{margin:0; font-size:clamp(24px, 3vw, 36px)}
    .section-head p{margin:0; color:var(--muted); max-width:62ch; line-height:1.7}
    .grid-3{display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:16px}
    .grid-4{display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:16px}
    .card{
      background:var(--card); border:1px solid rgba(223,229,242,.95); border-radius:22px;
      padding:22px; box-shadow:0 8px 20px rgba(17,24,39,.04); transition:.25s ease;
    }
    .card:hover{transform:translateY(-4px); box-shadow:var(--shadow)}
    .icon{
      width:48px; height:48px; border-radius:16px; display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(91,92,255,.14), rgba(255,93,115,.14));
      color:var(--primary); font-weight:900; margin-bottom:14px;
    }
    .card h3{margin:0 0 10px; font-size:18px}
    .card p{margin:0; color:var(--muted); line-height:1.72}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:10px 14px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#30405d; font-size:13px}
    .split{display:grid; grid-template-columns:1fr 1fr; gap:18px; align-items:start}
    .feature-list{display:grid; gap:12px}
    .feature-item{display:flex; gap:12px; align-items:flex-start; padding:14px; border-radius:18px; background:#fff; border:1px solid var(--line)}
    .feature-item i{font-style:normal; width:24px; height:24px; border-radius:50%; background:#edf2ff; color:var(--primary); display:grid; place-items:center; flex:0 0 auto; margin-top:2px}
    .feature-item b{display:block; margin-bottom:4px}
    .feature-item span{display:block; color:var(--muted); line-height:1.65; font-size:14px}
    .steps{display:grid; grid-template-columns:repeat(4, minmax(0,1fr)); gap:14px}
    .step{padding:20px; border-radius:20px; border:1px solid var(--line); background:linear-gradient(180deg,#fff,#fafbff)}
    .step em{display:inline-block; font-style:normal; color:#fff; background:linear-gradient(135deg,var(--accent),var(--primary)); padding:6px 10px; border-radius:999px; font-size:12px; font-weight:800}
    .step h3{margin:14px 0 8px}
    .step p{margin:0; color:var(--muted); line-height:1.72}
    .table-wrap{overflow:auto; border:1px solid var(--line); border-radius:22px; background:#fff}
    table{width:100%; border-collapse:collapse; min-width:820px}
    th,td{padding:16px 18px; border-bottom:1px solid #edf1f8; text-align:left; vertical-align:top}
    th{background:#fafbff; color:#33415f; font-size:14px}
    td{color:#44516e; line-height:1.65}
    .badge{display:inline-flex; align-items:center; gap:6px; padding:7px 10px; border-radius:999px; background:#eff6ff; color:#2563eb; font-size:12px; font-weight:700}
    .rating{
      display:grid; grid-template-columns:1fr 1fr; gap:16px;
    }
    .rating-box{padding:24px; border-radius:22px; background:linear-gradient(135deg, #fff, #fff7fb); border:1px solid var(--line)}
    .stars{color:#ffb400; font-size:24px; letter-spacing:2px}
    .comments{display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:16px}
    .quote{background:#fff; border:1px solid var(--line); border-radius:22px; padding:20px}
    .quote p{margin:0 0 16px; color:#37445f; line-height:1.75}
    .quote footer{background:transparent; border:0; padding:0; position:static; color:var(--muted); font-size:14px}
    .faq{display:grid; gap:12px}
    details{background:#fff; border:1px solid var(--line); border-radius:18px; padding:16px 18px}
    summary{cursor:pointer; font-weight:700; list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:12px 0 0; color:var(--muted); line-height:1.72}
    .articles{display:grid; grid-template-columns:repeat(3, minmax(0,1fr)); gap:16px}
    .article{padding:18px; border-radius:20px; border:1px solid var(--line); background:#fff}
    .article time{display:inline-block; font-size:12px; color:var(--muted); margin-bottom:10px}
    .article h3{margin:0 0 8px; font-size:17px}
    .article p{margin:0; color:var(--muted); line-height:1.7}
    .contact-grid{display:grid; grid-template-columns:.95fr 1.05fr; gap:18px}
    .form{
      display:grid; gap:12px; padding:22px; border-radius:24px; background:#fff; border:1px solid var(--line)
    }
    .field{display:grid; gap:8px}
    .field label{font-size:14px; font-weight:700; color:#35425f}
    .field input,.field select,.field textarea{
      width:100%; border:1px solid #d9e0ee; border-radius:14px; padding:13px 14px; font:inherit; color:var(--text); background:#fbfcff;
      outline:none; transition:.2s ease;
    }
    .field textarea{min-height:128px; resize:vertical}
    .field input:focus,.field select:focus,.field textarea:focus{border-color:rgba(91,92,255,.6); box-shadow:0 0 0 4px rgba(91,92,255,.08)}
    .aside-box{display:grid; gap:14px}
    .contact-card{padding:22px; border-radius:24px; border:1px solid var(--line); background:linear-gradient(180deg, #fff 0%, #fff7f2 100%)}
    .contact-list{display:grid; gap:10px; color:#45506b}
    .contact-list b{color:var(--text)}
    .qr{display:flex; gap:14px; align-items:center}
    .qr img{width:108px; height:108px; object-fit:cover; border-radius:16px; border:1px solid var(--line); background:#fff}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    footer{
      padding:26px 0 34px; background:#f4f7fc; color:#2b374f; border-top:1px solid #e2e8f4; margin-top:0
    }
    .footer-top{display:grid; grid-template-columns:1.15fr .85fr; gap:18px; align-items:start}
    .footer-note{color:#5c6781; line-height:1.75; margin-top:12px}
    .fixed-tools{
      position:fixed; right:16px; bottom:16px; z-index:60; display:grid; gap:10px;
    }
    .tool{
      width:48px; height:48px; border-radius:16px; border:1px solid rgba(223,229,242,.95); background:#fff;
      display:grid; place-items:center; box-shadow:var(--shadow); cursor:pointer; font-size:18px;
    }
    .floating{
      position:fixed; left:16px; bottom:16px; z-index:60;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .floating a{padding:10px 14px; border-radius:999px; background:#fff; border:1px solid var(--line); box-shadow:var(--shadow); font-size:13px}
    .mobile-only{display:none}
    .reveal{opacity:0; transform:translateY(18px); transition:.65s ease}
    .reveal.in{opacity:1; transform:none}
    .topbar{
      background:linear-gradient(135deg, #1f2a44, #4b3ef7 52%, #ff5d73);
      color:#fff; font-size:13px;
    }
    .topbar .container{display:flex; align-items:center; justify-content:space-between; gap:12px; padding:10px 0}
    .topbar a{color:#fff; text-decoration:underline}
    @media (max-width: 1024px){
      .hero-grid,.split,.contact-grid,.footer-top{grid-template-columns:1fr}
      .grid-4,.grid-3,.steps,.comments,.articles{grid-template-columns:repeat(2, minmax(0,1fr))}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-grid; place-items:center}
      .nav.open .nav-links{
        display:flex; position:absolute; left:16px; right:16px; top:74px; padding:14px; background:#fff; border:1px solid var(--line);
        border-radius:20px; box-shadow:var(--shadow); flex-direction:column; align-items:flex-start;
      }
      .nav.open{position:relative}
      .nav-cta{display:none}
      .mobile-only{display:inline-flex}
    }
    @media (max-width: 680px){
      section{padding:56px 0}
      .hero{padding-top:22px}
      .hero-card{padding:22px; border-radius:24px}
      .grid-4,.grid-3,.steps,.comments,.articles{grid-template-columns:1fr}
      .rating{grid-template-columns:1fr}
      .stat-grid{grid-template-columns:1fr 1fr}
      .brand span{display:none}
      h1{font-size:34px}
      .lead{font-size:16px}
      .topbar .container{flex-direction:column; align-items:flex-start}
      .floating{left:12px; right:12px; bottom:12px}
    }