:root{
      --bg:#f7f8fc;
      --panel:#ffffff;
      --panel-2:#f3f6ff;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --line:#e4e8f0;
      --brand:#5a67ff;
      --brand-2:#11b5a4;
      --brand-3:#ff8a5b;
      --brand-4:#7a5cff;
      --shadow:0 18px 50px rgba(31,42,55,.10);
      --shadow-soft:0 8px 24px rgba(31,42,55,.08);
      --radius:22px;
      --radius-sm:16px;
      --max:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
      background:
        radial-gradient(circle at top left, rgba(90,103,255,.10), transparent 26%),
        radial-gradient(circle at 82% 6%, rgba(17,181,164,.12), transparent 20%),
        radial-gradient(circle at 90% 18%, rgba(255,138,91,.10), transparent 18%),
        linear-gradient(180deg, #fbfcff 0%, #f7f8fc 36%, #f6f8fd 100%);
      color:var(--text);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky; top:0; z-index:40;
      backdrop-filter: blur(14px);
      background:rgba(247,248,252,.82);
      border-bottom:1px solid rgba(228,232,240,.88);
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:18px;
      padding:14px 0;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand .logo{
      width:42px; height:42px; border-radius:12px; object-fit:contain; background:#fff; border:1px solid var(--line); box-shadow:var(--shadow-soft);
      padding:4px;
    }
    .brand h2{margin:0; font-size:16px; line-height:1.2}
    .brand p{margin:3px 0 0; font-size:12px; color:var(--muted)}
    .nav-links{display:flex; align-items:center; gap:14px; flex-wrap:wrap; justify-content:flex-end}
    .nav-links a{font-size:14px; color:#344054; padding:8px 10px; border-radius:999px; transition:.22s ease}
    .nav-links a:hover,.nav-links a.active{background:rgba(90,103,255,.10); color:#243b9b}
    .nav-cta{display:flex; align-items:center; gap:10px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      border:0; border-radius:999px; padding:12px 18px; font-weight:700; cursor:pointer;
      transition:.22s ease; box-shadow:none;
      white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#7b8cff); color:#fff; box-shadow:0 12px 24px rgba(90,103,255,.24)}
    .btn-primary:hover{transform:translateY(-1px); box-shadow:0 16px 28px rgba(90,103,255,.30)}
    .btn-ghost{background:#fff; color:#243042; border:1px solid var(--line)}
    .btn-ghost:hover{border-color:#cdd6ee; transform:translateY(-1px)}
    .menu-btn{display:none; width:44px; height:44px; border-radius:14px; border:1px solid var(--line); background:#fff; align-items:center; justify-content:center}
    .menu-btn span,.menu-btn span:before,.menu-btn span:after{content:""; display:block; width:18px; height:2px; background:#334155; border-radius:2px; position:relative}
    .menu-btn span:before{position:absolute; top:-6px}
    .menu-btn span:after{position:absolute; top:6px}
    main{padding:22px 0 18px}
    section{scroll-margin-top:94px}
    .hero{
      position:relative; overflow:hidden;
      padding:34px 0 24px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.15fr .85fr; gap:24px; align-items:stretch;
    }
    .hero-copy{
      position:relative;
      padding:34px;
      background:linear-gradient(180deg, rgba(255,255,255,.88), rgba(245,248,255,.92));
      border:1px solid rgba(228,232,240,.95);
      border-radius:28px;
      box-shadow:var(--shadow);
    }
    .kicker{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px; border-radius:999px;
      background:linear-gradient(135deg, rgba(90,103,255,.12), rgba(17,181,164,.12));
      color:#20306a; font-size:13px; font-weight:700;
    }
    h1{
      margin:18px 0 14px;
      font-size:clamp(32px, 5vw, 56px);
      line-height:1.06;
      letter-spacing:-.02em;
    }
    .hero p{margin:0; color:var(--muted); font-size:16px; line-height:1.85; max-width:62ch}
    .hero-actions{display:flex; gap:12px; flex-wrap:wrap; margin-top:22px}
    .hero-meta{
      margin-top:20px; display:grid; grid-template-columns:repeat(3,1fr); gap:12px;
    }
    .mini{
      background:#fff; border:1px solid var(--line); border-radius:18px; padding:14px;
      box-shadow:var(--shadow-soft);
    }
    .mini strong{display:block; font-size:18px; color:#111827}
    .mini span{display:block; margin-top:4px; font-size:12px; color:var(--muted); line-height:1.5}
    .hero-visual{
      display:grid; gap:14px;
    }
    .orb-card,.stats-card{
      background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(245,248,255,.96));
      border:1px solid rgba(228,232,240,.95);
      border-radius:28px; box-shadow:var(--shadow);
      padding:24px;
      overflow:hidden;
    }
    .orb{
      height:182px; border-radius:24px;
      background:
        radial-gradient(circle at 20% 18%, rgba(90,103,255,.36), transparent 26%),
        radial-gradient(circle at 75% 24%, rgba(17,181,164,.30), transparent 24%),
        radial-gradient(circle at 50% 80%, rgba(255,138,91,.24), transparent 28%),
        linear-gradient(135deg, #101a38 0%, #1b2c63 40%, #0e1530 100%);
      position:relative; overflow:hidden;
    }
    .orb:before,.orb:after{
      content:""; position:absolute; inset:auto;
      border-radius:50%; filter:blur(2px);
    }
    .orb:before{width:110px;height:110px; left:20px; top:22px; background:rgba(255,255,255,.16); animation:float1 8s ease-in-out infinite}
    .orb:after{width:150px;height:150px; right:-20px; bottom:-28px; background:rgba(90,103,255,.20); animation:float2 10s ease-in-out infinite}
    .orb-copy{position:absolute; inset:24px; display:flex; flex-direction:column; justify-content:space-between; color:#fff}
    .orb-copy h3{margin:0; font-size:18px}
    .orb-copy p{margin:0; max-width:26ch; color:rgba(255,255,255,.82); line-height:1.65}
    .orb-tags{display:flex; flex-wrap:wrap; gap:8px}
    .tag{
      display:inline-flex; align-items:center; padding:7px 10px; border-radius:999px;
      background:rgba(255,255,255,.12); color:#fff; font-size:12px; border:1px solid rgba(255,255,255,.16)
    }
    .section-head{
      display:flex; align-items:end; justify-content:space-between; gap:16px; margin:24px 0 16px;
    }
    .section-head h2{margin:0; font-size:28px; line-height:1.2}
    .section-head p{margin:0; color:var(--muted); max-width:68ch; line-height:1.7}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .card{
      background:rgba(255,255,255,.92);
      border:1px solid rgba(228,232,240,.96);
      border-radius:22px;
      box-shadow:var(--shadow-soft);
      padding:20px;
      transition:.22s ease;
    }
    .card:hover{transform:translateY(-3px); box-shadow:var(--shadow)}
    .metric{display:flex; flex-direction:column; gap:10px; min-height:140px}
    .metric b{font-size:28px; line-height:1}
    .metric span{font-size:14px; color:var(--muted); line-height:1.7}
    .metric i{
      width:38px; height:38px; border-radius:13px; display:inline-flex; align-items:center; justify-content:center;
      background:linear-gradient(135deg, rgba(90,103,255,.12), rgba(17,181,164,.12)); font-style:normal; color:#243b9b;
    }
    .split{
      display:grid; grid-template-columns:1fr 1fr; gap:16px;
    }
    .list{
      display:grid; gap:12px;
    }
    .list-item{
      display:flex; gap:12px; align-items:flex-start; padding:14px; border-radius:18px; background:var(--panel-2); border:1px solid var(--line);
    }
    .dot{width:10px;height:10px;border-radius:50%; margin-top:6px; background:linear-gradient(135deg,var(--brand),var(--brand-2))}
    .list-item h3,.card h3{margin:0 0 6px; font-size:18px}
    .list-item p,.card p{margin:0; color:var(--muted); line-height:1.75}
    .pill-cloud{display:flex; flex-wrap:wrap; gap:10px}
    .pill{padding:10px 12px; border-radius:999px; background:#fff; border:1px solid var(--line); color:#334155; font-size:13px}
    .process{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .step{
      position:relative; padding:22px; min-height:176px; overflow:hidden;
      background:
        linear-gradient(180deg, rgba(255,255,255,.97), rgba(245,248,255,.94));
    }
    .step .num{
      width:40px;height:40px;border-radius:14px; display:flex; align-items:center; justify-content:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-2)); color:#fff; font-weight:800; margin-bottom:14px;
    }
    .step h3{margin:0 0 8px}
    .compare-wrap,.article-grid,.review-grid,.case-grid,.help-grid,.network-grid{display:grid; gap:14px}
    .table-box{
      overflow:auto; border-radius:22px; border:1px solid var(--line); background:#fff; box-shadow:var(--shadow-soft)
    }
    table{width:100%; border-collapse:collapse; min-width:920px}
    th,td{padding:14px 16px; text-align:left; border-bottom:1px solid #edf1f7; vertical-align:top; font-size:14px}
    th{background:#f7f9ff; color:#1e2a4a}
    td{color:#324152; line-height:1.7}
    .rate{
      display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:999px;
      background:linear-gradient(135deg, rgba(255,138,91,.14), rgba(90,103,255,.14)); color:#21315f; font-weight:700
    }
    details{
      background:#fff; border:1px solid var(--line); border-radius:18px; box-shadow:var(--shadow-soft);
      padding:0 18px; overflow:hidden
    }
    details + details{margin-top:12px}
    summary{
      list-style:none; cursor:pointer; padding:18px 0; font-weight:700; color:#243042; display:flex; align-items:center; justify-content:space-between; gap:16px
    }
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+"; font-size:22px; color:#667085}
    details[open] summary:after{content:"–"}
    details p{margin:0 0 18px; color:var(--muted); line-height:1.8}
    .reviews .card{height:100%}
    .stars{color:#ffb400; letter-spacing:2px; font-size:15px; margin-bottom:10px}
    .article-list{display:grid; gap:12px}
    .article{
      display:flex; gap:14px; align-items:flex-start; padding:16px; border-radius:18px; background:#fff; border:1px solid var(--line)
    }
    .article time{flex:none; font-size:12px; color:#6b7280; width:90px}
    .article a{color:#18295d; font-weight:700}
    .article p{margin:6px 0 0; color:var(--muted); line-height:1.7}
    .form-wrap{
      display:grid; grid-template-columns:1fr .9fr; gap:16px; align-items:start;
    }
    form{
      background:#fff; border:1px solid var(--line); border-radius:24px; box-shadow:var(--shadow-soft); padding:22px
    }
    .field-grid{display:grid; grid-template-columns:1fr 1fr; gap:12px}
    .field{display:flex; flex-direction:column; gap:8px; margin-bottom:12px}
    label{font-size:14px; font-weight:700; color:#334155}
    input,select,textarea{
      width:100%; border:1px solid #d9e0ec; border-radius:14px; padding:13px 14px; font:inherit; color:#111827; background:#fbfcff;
      outline:none; transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#7b8cff; box-shadow:0 0 0 4px rgba(90,103,255,.12); background:#fff}
    textarea{min-height:126px; resize:vertical}
    .form-side{
      display:grid; gap:14px;
    }
    .side-card{
      background:linear-gradient(180deg,#ffffff,#f7f9ff);
      border:1px solid var(--line); border-radius:24px; box-shadow:var(--shadow-soft); padding:22px
    }
    .qrcode{
      width:182px; aspect-ratio:1; border-radius:20px; border:1px solid var(--line); padding:10px; background:#fff; object-fit:cover
    }
    .footer{
      margin-top:24px; padding:24px 0 32px; border-top:1px solid rgba(228,232,240,.95);
      background:rgba(255,255,255,.38);
      color:#334155;
    }
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:18px; align-items:start}
    .footer h3{margin:0 0 12px}
    .footer p,.footer a{color:#4b5563; line-height:1.8; font-size:14px}
    .footer-links{display:flex; flex-wrap:wrap; gap:10px}
    .footer-links a{padding:8px 12px; border-radius:999px; background:#fff; border:1px solid var(--line)}
    .copy{margin-top:18px; color:#6b7280; font-size:13px}
    .float-tools{
      position:fixed; right:14px; bottom:14px; z-index:50; display:grid; gap:10px;
    }
    .float-tools a,.float-tools button{
      width:48px; height:48px; border-radius:16px; border:1px solid var(--line); background:#fff; box-shadow:var(--shadow-soft);
      display:flex; align-items:center; justify-content:center; color:#243042; cursor:pointer;
    }
    .mobile-panel{display:none}
    .backtop{opacity:0; pointer-events:none; transform:translateY(6px); transition:.2s ease}
    .backtop.show{opacity:1; pointer-events:auto; transform:translateY(0)}
    .reveal{opacity:0; transform:translateY(16px); transition:.55s ease}
    .reveal.in{opacity:1; transform:none}
    .anchorbar{display:flex; gap:10px; flex-wrap:wrap}
    .anchorbar a{padding:9px 12px; border-radius:999px; border:1px solid var(--line); background:#fff; font-size:13px; color:#334155}
    .price-box{display:grid; grid-template-columns:repeat(3,1fr); gap:12px}
    .price{
      padding:18px; border-radius:20px; border:1px solid var(--line); background:#fff;
    }
    .price strong{font-size:24px}
    .timeline{display:grid; gap:12px}
    .tl{
      display:grid; grid-template-columns:82px 1fr; gap:14px; align-items:start;
      padding:16px; border:1px solid var(--line); border-radius:18px; background:#fff;
    }
    .tl span{font-weight:800; color:#25346a}
    .tl p{margin:0; color:var(--muted); line-height:1.7}
    .case-grid .card, .review-grid .card, .help-grid .card{min-height:unset}
    @keyframes float1{50%{transform:translateY(10px) translateX(6px)}}
    @keyframes float2{50%{transform:translateY(-12px) translateX(-6px)}}
    @media (max-width: 1024px){
      .hero-grid,.split,.form-wrap,.footer-grid{grid-template-columns:1fr}
      .grid-4,.process,.grid-3,.price-box{grid-template-columns:repeat(2,1fr)}
      .hero-meta{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-panel{
        display:none; padding:0 0 14px;
      }
      .mobile-panel.open{display:block}
      .mobile-panel .panel{
        background:#fff; border:1px solid var(--line); border-radius:20px; padding:14px; box-shadow:var(--shadow-soft)
      }
      .mobile-panel a{display:block; padding:10px 0; color:#243042; border-bottom:1px solid #eef2f7}
      .mobile-panel a:last-child{border-bottom:0}
      .field-grid{grid-template-columns:1fr}
    }
    @media (max-width: 640px){
      .container{width:min(var(--max), calc(100% - 22px))}
      .hero-copy,.orb-card,.stats-card,.card,form{padding:18px}
      h1{font-size:30px}
      .section-head{flex-direction:column; align-items:flex-start}
      .grid-4,.process,.grid-3,.price-box{grid-template-columns:1fr}
      .tl{grid-template-columns:1fr}
      .nav{padding:12px 0}
      .brand h2{font-size:15px}
      .btn{padding:11px 14px}
      .float-tools{right:10px; bottom:10px}
    }