:root{
      --bg:#f5fbfb;
      --surface:#ffffff;
      --surface-2:#eef8f8;
      --text:#15333b;
      --muted:#5d7480;
      --brand:#0f8b8d;
      --brand-2:#2fb9b8;
      --brand-3:#1d6fd1;
      --line:rgba(21,51,59,.12);
      --shadow:0 14px 40px rgba(20,72,84,.08);
      --shadow-soft:0 8px 24px rgba(20,72,84,.06);
      --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","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(47,185,184,.16), transparent 26%),
        radial-gradient(circle at top right, rgba(29,111,209,.12), transparent 24%),
        linear-gradient(180deg, #f7fcfc 0%, #f3f8f9 34%, #f5fbfb 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(18px);
      background:rgba(247,252,252,.82);
      border-bottom:1px solid rgba(21,51,59,.08);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      min-height:72px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand img{width:40px;height:40px;object-fit:contain}
    .brand strong{font-size:1rem;letter-spacing:.5px}
    .brand span{display:block;font-size:.78rem;color:var(--muted);margin-top:2px}
    .menu{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .menu a{font-size:.94rem;color:var(--text);padding:10px 0;opacity:.92}
    .menu a:hover,.menu a:focus{color:var(--brand)}
    .nav-actions{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:12px 18px;
      font-weight:700;transition:.25s ease;cursor:pointer;white-space:nowrap;
      box-shadow:none;
    }
    .btn-primary{
      color:#fff;
      background:linear-gradient(135deg,var(--brand) 0%, var(--brand-2) 55%, var(--brand-3) 100%);
      box-shadow:0 12px 26px rgba(15,139,141,.25);
    }
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(15,139,141,.3)}
    .btn-ghost{
      color:var(--text);background:rgba(255,255,255,.72);border-color:rgba(21,51,59,.12)
    }
    .btn-ghost:hover{border-color:rgba(15,139,141,.36);transform:translateY(-1px)}
    .nav-toggle{display:none;border:1px solid var(--line);background:rgba(255,255,255,.75);border-radius:12px;padding:10px 12px}
    .hero{
      position:relative;
      padding:56px 0 28px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;inset:0;
      background:
        radial-gradient(circle at 15% 20%, rgba(47,185,184,.18), transparent 18%),
        radial-gradient(circle at 80% 15%, rgba(29,111,209,.16), transparent 20%),
        radial-gradient(circle at 50% 70%, rgba(47,185,184,.12), transparent 26%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;grid-template-columns:1.14fr .86fr;gap:28px;align-items:stretch;
    }
    .hero-copy,.hero-panel,.card,.section-card,.faq-item,.quote,.article,.form-wrap,.table-wrap,.timeline,.stats,footer{
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
    }
    .hero-copy{padding:34px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;
      background:rgba(15,139,141,.08);color:var(--brand);font-weight:700;font-size:.9rem
    }
    h1{margin:18px 0 14px;font-size:clamp(2rem,4vw,3.5rem);line-height:1.12;letter-spacing:-.02em}
    .lead{margin:0;color:var(--muted);font-size:1.02rem;line-height:1.8;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .badge{padding:10px 12px;border-radius:999px;background:var(--surface-2);border:1px solid rgba(21,51,59,.08);color:var(--text);font-size:.92rem}
    .hero-panel{padding:28px;background:
      linear-gradient(180deg, rgba(255,255,255,.92), rgba(236,248,248,.96));
      overflow:hidden;
    }
    .panel-top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
    .panel-chip{padding:8px 12px;border-radius:999px;background:rgba(29,111,209,.08);color:#1a5ea9;font-weight:700;font-size:.88rem}
    .panel-metric{
      display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:18px
    }
    .metric{
      padding:16px;border-radius:18px;background:rgba(255,255,255,.82);border:1px solid rgba(21,51,59,.08)
    }
    .metric strong{display:block;font-size:1.15rem}
    .metric span{color:var(--muted);font-size:.88rem}
    .panel-list{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px}
    .panel-list li{
      display:flex;gap:10px;align-items:flex-start;
      padding:11px 12px;border-radius:14px;background:rgba(255,255,255,.78)
    }
    .dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand-3));margin-top:6px;flex:0 0 auto}
    .section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin:14px 0 18px}
    .section-head h2{margin:0;font-size:1.7rem}
    .section-head p{margin:0;color:var(--muted);max-width:60ch;line-height:1.7}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{padding:22px;transition:.25s ease}
    .card:hover,.quote:hover,.article:hover,.faq-item:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
    .card h3,.card h4{margin:0 0 10px}
    .card p{margin:0;color:var(--muted);line-height:1.75}
    .icon{
      width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(15,139,141,.12), rgba(29,111,209,.12));
      color:var(--brand);font-weight:800;margin-bottom:14px
    }
    .stats{
      padding:18px;margin-top:2px
    }
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .stat{
      padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff, #f2fbfb);
      border:1px solid rgba(21,51,59,.08)
    }
    .stat strong{display:block;font-size:1.5rem;color:#0f5b67}
    .stat span{color:var(--muted);font-size:.92rem}
    .section-card{padding:22px}
    .timeline{padding:22px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{
      position:relative;padding:18px;border-radius:18px;background:#fff;border:1px solid rgba(21,51,59,.08)
    }
    .step::after{
      content:"";position:absolute;top:28px;right:-7px;width:14px;height:14px;border-radius:50%;
      background:linear-gradient(135deg,var(--brand),var(--brand-3));box-shadow:0 0 0 6px rgba(47,185,184,.12)
    }
    .step:last-child::after{display:none}
    .table-wrap{padding:0;overflow:auto}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:16px 14px;border-bottom:1px solid rgba(21,51,59,.08);text-align:left;vertical-align:top}
    th{background:#f2fbfb;color:#173840;font-size:.96rem}
    tr:hover td{background:#fbfeff}
    .score{
      display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;
      background:rgba(15,139,141,.1);color:#0b6469;font-weight:800
    }
    .pill{display:inline-flex;gap:8px;flex-wrap:wrap}
    .tag{padding:8px 11px;border-radius:999px;background:var(--surface-2);border:1px solid rgba(21,51,59,.08);font-size:.9rem}
    .review{
      display:flex;flex-direction:column;gap:12px
    }
    .quote{padding:20px}
    .quote strong{display:block;margin-bottom:8px}
    .quote span{color:var(--muted);line-height:1.7}
    .avatar{
      width:42px;height:42px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff;font-weight:800
    }
    .quote-head{display:flex;align-items:center;gap:12px}
    .article-list{display:grid;gap:12px}
    .article{
      padding:18px;display:flex;justify-content:space-between;gap:16px;align-items:center
    }
    .article small{color:var(--muted)}
    .article b{display:block;margin-bottom:6px}
    .form-wrap{padding:24px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:.92rem;font-weight:700;margin-bottom:8px;color:#274751}
    input,select,textarea{
      width:100%;padding:13px 14px;border-radius:14px;border:1px solid rgba(21,51,59,.14);
      background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s ease
    }
    input:focus,select:focus,textarea:focus{border-color:rgba(15,139,141,.5);box-shadow:0 0 0 4px rgba(47,185,184,.12)}
    textarea{min-height:120px;resize:vertical}
    .help-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:18px 20px;border:0;background:transparent;color:var(--text);font:inherit;font-weight:800;text-align:left;cursor:pointer
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.active .faq-a{max-height:220px;padding-bottom:18px}
    .faq-a p{margin:0;color:var(--muted);line-height:1.75}
    .plus{font-size:1.2rem;color:var(--brand);flex:0 0 auto}
    .footer-wrap{
      margin-top:22px;padding:26px 0 18px
    }
    footer{padding:24px;background:#f9ffff;color:var(--text)}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr 1fr;gap:18px}
    .footer-grid p,.footer-grid a{color:var(--muted);line-height:1.8}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid rgba(21,51,59,.08)}
    .footer-links a:hover{color:var(--brand)}
    .mini{font-size:.9rem;color:var(--muted)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px
    }
    .float-btn{
      width:50px;height:50px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand-3));color:#fff;box-shadow:0 12px 30px rgba(15,139,141,.28)
    }
    .customer-service{
      position:fixed;left:16px;bottom:16px;z-index:50;
      width:min(320px,calc(100vw - 32px));background:#fff;border:1px solid var(--line);border-radius:20px;
      box-shadow:var(--shadow);overflow:hidden
    }
    .service-head{padding:14px 16px;background:linear-gradient(135deg, rgba(15,139,141,.12), rgba(29,111,209,.08));display:flex;justify-content:space-between;align-items:center;gap:10px}
    .service-body{padding:16px;display:grid;gap:12px}
    .qr-box{display:flex;gap:12px;align-items:center}
    .qr-box img{width:86px;height:86px;object-fit:cover;border-radius:14px;border:1px solid rgba(21,51,59,.1)}
    .mobile-only{display:none}
    .fade-in{opacity:0;transform:translateY(14px);transition:.6s ease}
    .fade-in.show{opacity:1;transform:translateY(0)}
    .center{text-align:center}
    .spacer{height:2px}
    @media (max-width: 1100px){
      .hero-grid,.help-grid,.footer-grid{grid-template-columns:1fr}
      .grid-4,.grid-3,.grid-2,.stats-grid,.steps{grid-template-columns:repeat(2,1fr)}
      .menu{display:none}
      .nav-toggle{display:inline-flex}
      .mobile-only{display:inline-flex}
    }
    @media (max-width: 720px){
      .container{padding:0 16px}
      .hero{padding-top:24px}
      .hero-copy,.hero-panel,.card,.section-card,.faq-item,.quote,.article,.form-wrap,.table-wrap,.timeline,.stats,footer{border-radius:18px}
      .hero-copy,.hero-panel,.card,.section-card,.timeline,.form-wrap{padding:18px}
      .grid-4,.grid-3,.grid-2,.stats-grid,.steps,.form-grid{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
      .nav-actions .btn-ghost{display:none}
      .customer-service{width:calc(100vw - 32px)}
      .article{flex-direction:column;align-items:flex-start}
      .step::after{display:none}
    }