:root{
      --bg:#fffaf4;
      --bg2:#f6fbff;
      --card:#ffffff;
      --text:#1f2a37;
      --muted:#5e6b7b;
      --line:#e8e1d8;
      --brand:#ff7a45;
      --brand2:#2f80ed;
      --accent:#1bbf9b;
      --warn:#ffb020;
      --shadow:0 16px 40px rgba(31,42,55,.08);
      --shadow2:0 8px 24px rgba(47,128,237,.12);
      --radius:20px;
      --radius2:28px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,122,69,.10), transparent 28%),
        radial-gradient(circle at 85% 10%, rgba(47,128,237,.10), transparent 24%),
        linear-gradient(180deg, var(--bg), #fff 34%, #fff 100%);
      line-height:1.65;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:saturate(180%) blur(14px);
      background:rgba(255,250,244,.82);
      border-bottom:1px solid rgba(232,225,216,.7);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:74px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:42px;height:42px;object-fit:contain;flex:0 0 auto}
    .brand-name{display:flex;flex-direction:column;min-width:0}
    .brand-name strong{font-size:18px;line-height:1.1}
    .brand-name span{font-size:12px;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#344054;padding:8px 0;position:relative;white-space:nowrap}
    .nav-links a::after{
      content:"";position:absolute;left:0;bottom:2px;width:0;height:2px;border-radius:999px;
      background:linear-gradient(90deg,var(--brand),var(--brand2));transition:width .25s ease;
    }
    .nav-links a:hover::after{width:100%}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;padding:11px 16px;
      font-weight:700;font-size:14px;cursor:pointer;transition:.25s ease;white-space:nowrap;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),#ff9a5c);color:#fff;box-shadow:0 12px 24px rgba(255,122,69,.24)}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(255,122,69,.30)}
    .btn-ghost{background:#fff;color:var(--text);border-color:var(--line)}
    .btn-ghost:hover{transform:translateY(-1px);box-shadow:var(--shadow2)}
    .menu-btn{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px 12px}
    .menu-btn span{display:block;width:18px;height:2px;background:#253142;border-radius:99px;margin:3px 0;transition:.25s}
    .hero{
      position:relative;overflow:hidden;
      padding:34px 0 24px;
    }
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch;
    }
    .hero-copy{
      background:linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.85));
      border:1px solid rgba(232,225,216,.9);
      border-radius:var(--radius2);
      box-shadow:var(--shadow);
      padding:34px;
      position:relative;
      overflow:hidden;
    }
    .hero-copy::before,.hero-copy::after{
      content:"";position:absolute;border-radius:50%;pointer-events:none;
      filter:blur(2px)
    }
    .hero-copy::before{width:220px;height:220px;background:rgba(255,122,69,.10);right:-70px;top:-60px}
    .hero-copy::after{width:180px;height:180px;background:rgba(47,128,237,.10);left:-80px;bottom:-70px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(47,128,237,.08);color:#1f5bbf;font-weight:700;font-size:13px;
    }
    h1{margin:16px 0 14px;font-size:clamp(32px, 5vw, 52px);line-height:1.08;letter-spacing:-.03em}
    .lead{margin:0;color:#415164;font-size:17px;max-width:48em}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:20px}
    .mini-card{
      background:linear-gradient(180deg,#fff, #fffaf5);
      border:1px solid var(--line);
      border-radius:18px;padding:14px;
      box-shadow:0 8px 20px rgba(31,42,55,.04);
    }
    .mini-card strong{display:block;font-size:18px}
    .mini-card span{font-size:13px;color:var(--muted)}
    .hero-side{
      display:grid;gap:16px;
    }
    .side-card{
      background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
      box-shadow:var(--shadow);padding:22px;
    }
    .side-card h3{margin:0 0 10px;font-size:18px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#f8fafc;border:1px solid #e8eef4;color:#344054;font-size:13px}
    .metric-grid{
      display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin:18px 0 0;
    }
    .metric{
      background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;
      box-shadow:0 10px 28px rgba(31,42,55,.05)
    }
    .metric .num{font-size:26px;font-weight:800;line-height:1;color:#182230}
    .metric .lbl{font-size:13px;color:var(--muted);margin-top:8px}
    section{padding:18px 0}
    .section-card{
      background:rgba(255,255,255,.92);border:1px solid rgba(232,225,216,.92);border-radius:28px;
      box-shadow:var(--shadow);padding:28px;
    }
    .section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:18px}
    .section-head h2{margin:0;font-size:28px;line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:60ch}
    .two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .feature{
      background:linear-gradient(180deg,#fff, #fff8f2);
      border:1px solid var(--line);border-radius:22px;padding:20px;
      transition:transform .2s ease, box-shadow .2s ease;
    }
    .feature:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .feature h3{margin:10px 0 8px;font-size:18px}
    .feature p{margin:0;color:var(--muted);font-size:14px}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#fff;
      background:linear-gradient(135deg,var(--brand),#ffaf63);
      box-shadow:0 10px 18px rgba(255,122,69,.22);
      font-weight:800;
    }
    .timeline{display:grid;gap:14px}
    .step{
      display:grid;grid-template-columns:auto 1fr;gap:14px;align-items:start;
      padding:16px;border:1px solid var(--line);border-radius:20px;background:#fff;
    }
    .step .idx{
      width:36px;height:36px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(47,128,237,.12), rgba(27,191,155,.12));
      color:#1658b8;font-weight:800;
    }
    .step h3{margin:0 0 6px;font-size:17px}
    .step p{margin:0;color:var(--muted);font-size:14px}
    .compare-wrap{overflow:auto;border:1px solid var(--line);border-radius:22px;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #eef2f6;vertical-align:top;text-align:left}
    th{background:#f8fbff;font-size:14px;color:#223044}
    td{font-size:14px;color:#344054}
    .good{color:#13795b;font-weight:700}
    .highlight{background:#fff8ef}
    .rating{
      display:grid;grid-template-columns:1.1fr .9fr;gap:16px;align-items:stretch
    }
    .score-box{
      background:linear-gradient(135deg,#fff7f0,#eef7ff);
      border:1px solid #f1dfce;border-radius:24px;padding:24px;
    }
    .score{font-size:44px;font-weight:900;line-height:1;color:#ff6a32}
    .stars{color:#ffb020;font-size:20px;letter-spacing:2px;margin:10px 0}
    .score-list{display:grid;gap:10px;margin-top:14px}
    .score-list div{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(31,42,55,.12)}
    .split-grid{display:grid;grid-template-columns:1fr .95fr;gap:18px}
    .review-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review{
      background:#fff;border:1px solid var(--line);border-radius:22px;padding:20px;
    }
    .review .who{font-weight:800}
    .review .role{font-size:13px;color:var(--muted);margin-top:2px}
    .review p{margin:12px 0 0;color:#3d4b5a}
    .article-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .article{
      background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;
    }
    .article .meta{font-size:13px;color:var(--muted);margin-bottom:10px}
    .article h3{margin:0 0 8px;font-size:17px}
    .article p{margin:0;color:var(--muted);font-size:14px}
    .gallery{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .gallery figure{margin:0;background:#fff;border:1px solid var(--line);border-radius:22px;overflow:hidden}
    .gallery figcaption{padding:14px 16px;color:#425262;font-size:14px}
    .contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    form{
      display:grid;gap:12px
    }
    .field-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    input,select,textarea{
      width:100%;border:1px solid #dbe4ee;background:#fff;border-radius:14px;
      padding:12px 14px;font:inherit;color:var(--text);outline:none;transition:border-color .2s, box-shadow .2s;
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(47,128,237,.55);box-shadow:0 0 0 4px rgba(47,128,237,.10)}
    textarea{min-height:118px;resize:vertical}
    .submit{width:100%}
    .faq details{
      background:#fff;border:1px solid var(--line);border-radius:18px;padding:0 16px;overflow:hidden
    }
    .faq details+details{margin-top:12px}
    .faq summary{
      list-style:none;cursor:pointer;padding:16px 0;font-weight:700;color:#243244;display:flex;justify-content:space-between;gap:12px;align-items:center
    }
    .faq summary::-webkit-details-marker{display:none}
    .faq summary::after{content:"＋";color:var(--brand);font-size:18px;transition:transform .2s}
    .faq details[open] summary::after{content:"－"}
    .faq .ans{padding:0 0 16px;color:var(--muted);font-size:14px}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    .footer-links a{padding:8px 0;color:#344054}
    footer{
      margin-top:18px;
      background:#f9fbfd;
      border-top:1px solid #e6edf4;
      color:#2b3644;
    }
    .footer-inner{padding:24px 0;display:grid;gap:16px}
    .footer-top{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
    .footer-note{font-size:13px;color:#526071}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:52px;height:52px;border-radius:18px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand2),#6bb7ff);
      color:#fff;box-shadow:0 14px 28px rgba(47,128,237,.25);border:none;cursor:pointer
    }
    .float-btn.secondary{background:linear-gradient(135deg,var(--accent),#51d6bf)}
    .back-top{opacity:0;pointer-events:none;transform:translateY(10px);transition:.25s ease}
    .back-top.show{opacity:1;pointer-events:auto;transform:translateY(0)}
    .mobile-only{display:none}
    .note-bar{
      display:flex;gap:12px;flex-wrap:wrap;align-items:center;
      padding:14px 16px;border-radius:18px;background:linear-gradient(135deg, rgba(255,122,69,.09), rgba(47,128,237,.08));
      border:1px solid rgba(255,122,69,.14)
    }
    .label{font-size:13px;color:#1f4f9c;font-weight:700}
    .chips{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:7px 11px;border-radius:999px;background:#fff;border:1px solid #e7eef5;font-size:13px;color:#344054}
    .service-net{display:flex;flex-wrap:wrap;gap:10px}
    .service-net span{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid #dfe8f1;font-size:13px}
    .section-anchor{scroll-margin-top:92px}
    .subtle{color:var(--muted)}
    .sticky-note{
      background:#fff7f1;border:1px solid #f1dfce;border-radius:18px;padding:16px;color:#5b4635
    }
    @media (max-width: 980px){
      .hero-grid,.metric-grid,.feature-grid,.review-grid,.article-list,.contact-grid,.footer-top,.split-grid,.rating,.two-col,.gallery{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex;align-items:center;justify-content:center}
      .nav-open .nav-links{
        display:flex;position:absolute;left:16px;right:16px;top:74px;
        flex-direction:column;align-items:flex-start;gap:10px;padding:14px 16px;
        background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)
      }
      .nav{position:relative}
      .hero-copy{padding:24px}
      .hero-points,.field-grid{grid-template-columns:1fr}
      .mobile-only{display:block}
      .desktop-only{display:none}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 20px))}
      .section-card,.hero-copy,.side-card{padding:18px}
      .section-head{flex-direction:column;align-items:flex-start}
      h1{font-size:30px}
      .lead{font-size:15px}
      .hero-actions .btn{width:100%}
      .nav-cta .btn-ghost{display:none}
      .metric .num{font-size:22px}
    }
    .reveal{opacity:0;transform:translateY(18px);transition:.6s ease}
    .reveal.show{opacity:1;transform:translateY(0)}
    .pulse{animation:pulse 2.6s ease-in-out infinite}
    @keyframes pulse{
      0%,100%{transform:translateY(0)}
      50%{transform:translateY(-2px)}
    }