:root{
      --bg:#f6f8fc;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#1f2a44;
      --muted:#5f6b85;
      --line:#dce3f3;
      --primary:#4c63ff;
      --primary2:#9c6bff;
      --accent:#13c2c2;
      --warm:#ffb36b;
      --shadow:0 18px 50px rgba(35,54,108,.12);
      --radius:22px;
      --radius2:16px;
      --max: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(156,107,255,.10), transparent 28%),
        radial-gradient(circle at top right, rgba(76,99,255,.10), transparent 26%),
        linear-gradient(180deg, #fbfcff 0%, #f4f7ff 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    .glass{
      background:rgba(255,255,255,.82);
      border:1px solid rgba(255,255,255,.7);
      box-shadow:var(--shadow);
      backdrop-filter:blur(10px);
    }
    .topbar{
      position:sticky; top:0; z-index:50;
      border-bottom:1px solid rgba(220,227,243,.8);
      background:rgba(246,248,252,.88);
      backdrop-filter:blur(14px);
    }
    .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; padding:4px; border:1px solid var(--line)}
    .brand strong{display:block; font-size:18px; line-height:1.1}
    .brand span{display:block; font-size:12px; color:var(--muted); margin-top:4px}
    .menu-btn{
      display:none; border:1px solid var(--line); background:#fff; color:var(--text);
      border-radius:14px; padding:10px 12px; font-size:14px;
    }
    .navlinks{display:flex; align-items:center; gap:18px; flex-wrap:wrap}
    .navlinks a{font-size:14px; color:var(--muted)}
    .navlinks a:hover{color:var(--primary)}
    .nav-cta{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border-radius:14px; padding:12px 16px; font-weight:700; font-size:14px;
      border:1px solid transparent; transition:.25s ease;
      cursor:pointer;
    }
    .btn:hover{transform:translateY(-1px); box-shadow:0 14px 24px rgba(76,99,255,.16)}
    .btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff}
    .btn-ghost{background:#fff; border-color:var(--line); color:var(--text)}
    header.hero{padding:26px 0 16px}
    .hero-grid{display:grid; grid-template-columns:1.15fr .85fr; gap:22px; align-items:stretch}
    .hero-main{
      border-radius:28px; padding:28px;
      position:relative; overflow:hidden;
      background:
        linear-gradient(135deg, rgba(76,99,255,.12), rgba(156,107,255,.10) 50%, rgba(19,194,194,.08)),
        linear-gradient(180deg, rgba(255,255,255,.96), rgba(255,255,255,.86));
      border:1px solid rgba(255,255,255,.8);
      box-shadow:var(--shadow);
    }
    .hero-main:before,.hero-main:after{
      content:""; position:absolute; border-radius:50%; pointer-events:none; filter:blur(1px)
    }
    .hero-main:before{width:240px; height:240px; right:-90px; top:-80px; background:radial-gradient(circle, rgba(156,107,255,.28), transparent 68%)}
    .hero-main:after{width:180px; height:180px; left:-80px; bottom:-60px; background:radial-gradient(circle, rgba(76,99,255,.20), transparent 68%)}
    .kicker{display:inline-flex; gap:8px; align-items:center; padding:8px 12px; border-radius:999px; background:rgba(76,99,255,.10); color:#3146b7; font-size:13px; font-weight:700}
    h1{margin:16px 0 12px; font-size:clamp(30px, 4vw, 54px); line-height:1.06; letter-spacing:-.03em}
    .lead{font-size:16px; line-height:1.85; color:var(--muted); max-width:60ch}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:22px}
    .trust-row{display:flex; gap:10px; flex-wrap:wrap; margin-top:18px}
    .chip{padding:9px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:var(--text); font-size:13px}
    .hero-side{
      display:grid; gap:14px;
    }
    .side-card{
      border-radius:24px; padding:20px;
      background:linear-gradient(180deg,#ffffff, #f7f9ff);
      border:1px solid var(--line); box-shadow:var(--shadow);
    }
    .side-card h3{margin:0 0 10px; font-size:18px}
    .side-card p{margin:0; color:var(--muted); line-height:1.8; font-size:14px}
    .metric-grid{
      display:grid; grid-template-columns:repeat(4,1fr); gap:14px; margin-top:18px
    }
    .metric{
      padding:18px; border-radius:20px; background:rgba(255,255,255,.92);
      border:1px solid var(--line); box-shadow:0 10px 28px rgba(42,57,101,.08)
    }
    .metric b{display:block; font-size:24px; margin-bottom:8px}
    .metric span{color:var(--muted); font-size:13px; line-height:1.5}
    main{padding:16px 0 20px}
    section{scroll-margin-top:88px; margin-top:18px}
    .section{
      border-radius:28px; padding:24px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(255,255,255,.8);
      box-shadow:var(--shadow);
    }
    .section h2{margin:0 0 10px; font-size:26px}
    .section .sub{margin:0 0 18px; color:var(--muted); line-height:1.8}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .card{
      background:linear-gradient(180deg,#fff, #fbfcff);
      border:1px solid var(--line); border-radius:22px; padding:18px;
      transition:transform .25s ease, box-shadow .25s ease, border-color .25s ease;
    }
    .card:hover{transform:translateY(-3px); box-shadow:0 16px 30px rgba(44,63,109,.12); border-color:#cfd8ee}
    .card h3{margin:0 0 10px; font-size:18px}
    .card p, .card li{color:var(--muted); line-height:1.8; margin:0}
    .card ul{margin:0; padding-left:18px}
    .flow{display:grid; grid-template-columns:repeat(5,1fr); gap:12px}
    .step{padding:18px; border-radius:20px; background:linear-gradient(180deg,#fff, #f7f8ff); border:1px solid var(--line); position:relative}
    .step .n{
      width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--primary),var(--primary2)); color:#fff; font-weight:800; margin-bottom:12px
    }
    .step h3{margin:0 0 8px; font-size:16px}
    .step p{margin:0; color:var(--muted); font-size:14px; line-height:1.7}
    .table-wrap{overflow:auto; border-radius:20px; border:1px solid var(--line); background:#fff}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:14px 16px; border-bottom:1px solid #edf1fb; text-align:left; vertical-align:top}
    th{background:#f7f9ff; color:#213055}
    td{color:var(--muted)}
    .tag-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:10px 14px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#34415f; font-size:13px}
    .review{display:grid; gap:10px}
    .review .meta{display:flex; justify-content:space-between; gap:10px; align-items:center; color:var(--muted); font-size:13px}
    .stars{color:#f7a823; letter-spacing:1px; font-weight:700}
    .faq-item{border:1px solid var(--line); border-radius:18px; background:#fff; overflow:hidden}
    .faq-q{
      width:100%; text-align:left; padding:16px 18px; background:#fff; border:0; color:var(--text);
      font-size:15px; font-weight:700; display:flex; justify-content:space-between; gap:12px; align-items:center; cursor:pointer
    }
    .faq-a{display:none; padding:0 18px 16px; color:var(--muted); line-height:1.8}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:transform .25s ease}
    .articles{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .article a{color:var(--primary); font-weight:700}
    .form{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px
    }
    .field{display:flex; flex-direction:column; gap:8px}
    .field.full{grid-column:1 / -1}
    label{font-size:14px; font-weight:700}
    input, select, textarea{
      width:100%; padding:13px 14px; border-radius:14px; border:1px solid var(--line); background:#fff;
      color:var(--text); outline:none; font:inherit
    }
    textarea{min-height:120px; resize:vertical}
    input:focus, select:focus, textarea:focus{border-color:#9fb0ff; box-shadow:0 0 0 4px rgba(76,99,255,.10)}
    .footer{
      margin:18px 0 22px;
      background:#fff;
      border-top:1px solid var(--line);
      border-radius:28px;
      box-shadow:var(--shadow);
      padding:24px;
    }
    .footer a{color:#3146b7}
    .footer-grid{display:grid; grid-template-columns:1.3fr .9fr .8fr; gap:16px}
    .small{color:var(--muted); font-size:13px; line-height:1.8}
    .float{
      position:fixed; right:16px; bottom:16px; z-index:60;
      display:flex; flex-direction:column; gap:10px
    }
    .float a,.float button{
      width:48px;height:48px;border-radius:16px;border:1px solid var(--line); background:#fff;
      display:grid; place-items:center; box-shadow:var(--shadow); cursor:pointer
    }
    .backtop{display:none}
    .fade-in{opacity:0; transform:translateY(14px); transition:opacity .7s ease, transform .7s ease}
    .fade-in.show{opacity:1; transform:none}
    .mobile-panel{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.articles,.footer-grid,.metric-grid,.flow{grid-template-columns:1fr 1fr}
      .flow{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 760px){
      .menu-btn{display:inline-flex}
      .navlinks,.nav-cta{display:none}
      .mobile-panel{display:none; padding:0 0 14px}
      .mobile-panel.open{display:block}
      .mobile-panel .navlinks{display:flex; flex-direction:column; align-items:flex-start; gap:10px; padding:12px 0 0}
      .mobile-panel .nav-cta{display:flex; flex-wrap:wrap; padding-top:12px}
      .hero-grid,.grid-3,.grid-2,.articles,.footer-grid,.metric-grid,.flow,.form{grid-template-columns:1fr}
      .hero-main,.section,.footer{padding:18px}
      h1{font-size:32px}
      .metric b{font-size:22px}
      .float{right:12px; bottom:12px}
    }