:root{
      --bg0:#fbfaf7;
      --bg1:#f4f3ef;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#6b7280;
      --muted2:#4b5563;
      --line:rgba(17,24,39,.10);
      --shadow:0 10px 30px rgba(17,24,39,.06);
      --shadow2:0 8px 18px rgba(17,24,39,.07);
      --brand:#0f766e;
      --brand2:#0b5f57;
      --accent:#b45309;
      --danger:#b91c1c;
      --radius:18px;
      --radius2:14px;
      --container:1040px;
    }
    *{box-sizing:border-box}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Roboto,Helvetica,Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 10% -10%, rgba(15,118,110,.10), transparent 55%),
        radial-gradient(900px 500px at 85% 5%, rgba(180,83,9,.10), transparent 50%),
        linear-gradient(180deg, var(--bg0), var(--bg1));
      line-height:1.55;
    }
    a{color:inherit}
    .container{
      width:min(var(--container), 100% - 32px);
      margin:0 auto;
    }
    header{
      position:sticky;
      top:0;
      z-index:30;
      background:rgba(251,250,247,.72);
      backdrop-filter:saturate(140%) blur(10px);
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:14px 0;
      gap:12px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:0;
    }
    .logo{
      width:34px;height:34px;border-radius:10px;
      background:linear-gradient(135deg, rgba(15,118,110,.95), rgba(11,95,87,.95));
      box-shadow:0 10px 24px rgba(15,118,110,.18);
      display:grid;place-items:center;
      color:#fff;font-weight:800;
      letter-spacing:-.02em;
      user-select:none;
    }
    .brand-title{
      display:flex;
      flex-direction:column;
      gap:2px;
      min-width:0;
    }
    .brand-title strong{
      font-size:14px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .brand-title span{
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
    }
    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
    }
    .nav-links{
      display:none;
      align-items:center;
      gap:18px;
    }
    .nav-links a{
      text-decoration:none;
      color:var(--muted2);
      font-size:14px;
      padding:8px 0;
      position:relative;
    }
    .nav-links a::after{
      content:"";
      position:absolute;
      left:0; right:0; bottom:2px;
      height:2px;
      background:linear-gradient(90deg, rgba(15,118,110,.85), rgba(180,83,9,.75));
      transform:scaleX(0);
      transform-origin:left;
      transition:transform .25s ease;
      border-radius:2px;
    }
    .nav-links a:hover{color:var(--text)}
    .nav-links a:hover::after{transform:scaleX(1)}
    .menu-btn{
      appearance:none;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.75);
      color:var(--text);
      border-radius:12px;
      padding:10px 12px;
      display:flex;
      align-items:center;
      gap:10px;
      cursor:pointer;
      box-shadow:0 6px 16px rgba(17,24,39,.06);
      transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease;
      font-weight:650;
    }
    .menu-btn:active{transform:scale(.99)}
    .menu-icon{
      width:18px;height:18px;display:inline-grid;place-items:center;
      border-radius:6px;
      background:linear-gradient(135deg, rgba(15,118,110,.12), rgba(180,83,9,.10));
      border:1px solid rgba(15,118,110,.18);
    }
    .menu-panel{
      display:none;
      padding:10px 0 16px;
    }
    .menu-panel.open{display:block}
    .menu-panel a{
      display:block;
      text-decoration:none;
      color:var(--text);
      padding:12px 14px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.72);
      margin-top:10px;
      box-shadow:0 10px 24px rgba(17,24,39,.05);
    }
    .menu-panel a small{
      display:block;
      color:var(--muted);
      margin-top:4px;
      font-size:12px;
    }
    @media (min-width: 860px){
      .nav-links{display:flex}
      .menu-btn{display:none}
      .menu-panel{display:none !important}
    }

    main{padding:26px 0 18px}
    .hero{
      border:1px solid rgba(17,24,39,.08);
      background:
        radial-gradient(900px 400px at 12% 15%, rgba(15,118,110,.16), transparent 52%),
        radial-gradient(720px 420px at 80% 0%, rgba(180,83,9,.14), transparent 55%),
        rgba(255,255,255,.68);
      border-radius: calc(var(--radius) + 6px);
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-inner{
      display:grid;
      grid-template-columns: 1fr;
      gap:18px;
      padding:20px;
      align-items:start;
    }
    @media (min-width: 900px){
      .hero-inner{grid-template-columns: 1.15fr .85fr; gap:22px; padding:26px}
    }
    .kicker{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted2);
      font-weight:650;
      font-size:13px;
      letter-spacing:.01em;
    }
    .kicker-badge{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(15,118,110,.20);
      background:linear-gradient(180deg, rgba(15,118,110,.10), rgba(255,255,255,.55));
      box-shadow:0 10px 20px rgba(15,118,110,.10);
    }
    .dot{
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(180deg, rgba(15,118,110,1), rgba(11,95,87,1));
      box-shadow:0 0 0 4px rgba(15,118,110,.16);
    }
    h1{
      margin:10px 0 10px;
      font-size:28px;
      line-height:1.15;
      letter-spacing:-.03em;
    }
    @media (min-width: 900px){
      h1{font-size:38px}
    }
    .hero p{
      margin:0;
      color:var(--muted2);
      max-width:60ch;
      font-size:15px;
    }
    .cta-row{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin-top:16px;
      align-items:center;
    }
    .btn{
      appearance:none;
      border:1px solid rgba(17,24,39,.12);
      background:#fff;
      color:var(--text);
      border-radius:14px;
      padding:12px 14px;
      cursor:pointer;
      font-weight:720;
      letter-spacing:-.01em;
      display:inline-flex;
      align-items:center;
      gap:10px;
      box-shadow:0 10px 24px rgba(17,24,39,.06);
      transition:transform .12s ease, box-shadow .12s ease, border-color .12s ease, background .12s ease;
      text-decoration:none;
      user-select:none;
    }
    .btn:active{transform:scale(.99)}
    .btn-primary{
      background:linear-gradient(135deg, rgba(15,118,110,.98), rgba(11,95,87,.98));
      color:#fff;
      border-color:rgba(15,118,110,.35);
      box-shadow:0 14px 30px rgba(15,118,110,.22);
    }
    .btn-primary:hover{box-shadow:0 18px 40px rgba(15,118,110,.26)}
    .btn-ghost{
      background:rgba(255,255,255,.72);
    }
    .btn svg{flex:0 0 auto}
    .hero-card{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.72);
      box-shadow:var(--shadow2);
      padding:16px;
      align-self:stretch;
    }
    .hero-card h2{
      font-size:16px;
      margin:0 0 10px;
      letter-spacing:-.02em;
    }
    .quick-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .quick-item{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:11px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.62));
      transition:transform .18s ease, border-color .18s ease;
    }
    .quick-item:hover{
      transform:translateY(-1px);
      border-color:rgba(15,118,110,.22);
    }
    .qi-ico{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(15,118,110,.14), rgba(180,83,9,.10));
      border:1px solid rgba(15,118,110,.18);
      color:var(--brand2);
      flex:0 0 auto;
      margin-top:1px;
    }
    .quick-item strong{
      display:block;
      font-size:13px;
      margin-top:1px;
    }
    .quick-item span{
      display:block;
      color:var(--muted);
      font-size:12px;
      margin-top:4px;
    }

    .grid{
      display:grid;
      grid-template-columns:1fr;
      gap:14px;
      margin-top:14px;
    }
    @media (min-width: 900px){
      .grid{grid-template-columns:1fr 1fr}
    }
    section.block{
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.62);
      border-radius: var(--radius);
      box-shadow:0 10px 22px rgba(17,24,39,.05);
      padding:16px;
    }
    section.block h2{
      margin:0 0 10px;
      font-size:16px;
      letter-spacing:-.02em;
    }
    section.block p{
      margin:0;
      color:var(--muted2);
      font-size:14px;
    }
    .divider{
      height:1px;
      background:rgba(17,24,39,.10);
      margin:14px 0;
    }
    .chips{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:10px;
    }
    .chip{
      padding:9px 11px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.70);
      color:var(--text);
      font-size:13px;
      font-weight:650;
    }
    .list{
      margin:0;
      padding-left:18px;
      color:var(--muted2);
      font-size:14px;
    }
    .list li{margin:8px 0}
    .list strong{color:var(--text)}
    .price-card{
      display:grid;
      grid-template-columns:1fr;
      gap:12px;
    }
    @media (min-width: 900px){
      .price-card{grid-template-columns: 1fr}
    }
    .price-row{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .price-metric{
      border:1px solid rgba(17,24,39,.10);
      background:linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.60));
      border-radius:16px;
      padding:12px 12px;
    }
    .price-metric .top{
      display:flex;
      justify-content:space-between;
      align-items:flex-start;
      gap:12px;
    }
    .price-metric .label{
      font-weight:800;
      letter-spacing:-.02em;
      font-size:14px;
      margin:0;
    }
    .price-metric .note{
      color:var(--muted);
      font-size:12px;
      margin-top:6px;
    }
    .price{
      font-weight:900;
      letter-spacing:-.04em;
      font-size:22px;
      color:var(--brand2);
      white-space:nowrap;
    }
    .price-sub{
      margin-top:4px;
      color:var(--muted);
      font-size:12px;
      text-align:right;
      max-width:18ch;
    }
    .fineprint{
      color:var(--muted);
      font-size:12px;
      margin:0;
    }

    .faq{
      margin-top:14px;
    }
    .faq h2{
      margin:0 0 12px;
      font-size:16px;
      letter-spacing:-.02em;
    }
    .accordion{
      display:grid;
      gap:10px;
    }
    details.faq-item{
      background:rgba(255,255,255,.65);
      border:1px solid rgba(17,24,39,.08);
      border-radius:16px;
      padding:12px 12px;
      box-shadow:0 10px 22px rgba(17,24,39,.04);
      transition:border-color .18s ease, transform .18s ease;
    }
    details.faq-item[open]{
      border-color:rgba(15,118,110,.22);
      transform:translateY(-1px);
    }
    summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      font-weight:820;
      letter-spacing:-.02em;
      color:var(--text);
      padding:2px 2px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-left{
      display:flex; gap:10px; align-items:flex-start;
    }
    .qmark{
      width:28px;height:28px;border-radius:10px;
      display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(15,118,110,.14), rgba(180,83,9,.10));
      border:1px solid rgba(15,118,110,.18);
      color:var(--brand2);
      flex:0 0 auto;
      margin-top:1px;
    }
    .chev{
      width:34px;height:34px;border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.65);
      display:grid;place-items:center;
      flex:0 0 auto;
      transition:transform .2s ease;
    }
    details[open] .chev{transform:rotate(180deg)}
    .faq-body{
      margin-top:10px;
      color:var(--muted2);
      font-size:14px;
      padding:0 2px 4px;
    }
    .faq-body ul{
      margin:10px 0 0;
      padding-left:18px;
      color:var(--muted2);
    }
    .faq-body li{margin:8px 0}

    .form-wrap{
      margin-top:14px;
      padding:16px;
      border:1px solid rgba(17,24,39,.08);
      background:rgba(255,255,255,.62);
      border-radius: var(--radius);
      box-shadow:0 10px 22px rgba(17,24,39,.05);
    }
    .form-grid{
      display:grid;
      grid-template-columns:1fr;
      gap:12px;
      align-items:start;
    }
    @media (min-width: 900px){
      .form-grid{grid-template-columns: .95fr 1.05fr; gap:16px}
    }
    .form-intro h2{
      margin:0 0 8px;
      font-size:16px;
      letter-spacing:-.02em;
    }
    .form-intro p{
      margin:0;
      color:var(--muted2);
      font-size:14px;
    }
    .pill-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:12px;
    }
    .pill{
      padding:9px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.74);
      color:var(--text);
      font-size:13px;
      font-weight:700;
    }

    form{
      display:grid;
      gap:10px;
    }
    .field-row{
      display:grid;
      grid-template-columns:1fr;
      gap:10px;
    }
    @media (min-width: 520px){
      .field-row{grid-template-columns:1fr 1fr}
    }
    .field{
      display:grid;
      gap:6px;
    }
    label{
      font-size:13px;
      color:var(--muted2);
      font-weight:750;
      letter-spacing:-.01em;
    }
    input, textarea, select{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:rgba(255,255,255,.78);
      padding:12px 12px;
      font-size:14px;
      color:var(--text);
      outline:none;
      transition:border-color .18s ease, box-shadow .18s ease, transform .12s ease;
    }
    textarea{min-height:112px; resize:vertical}
    input:focus, textarea:focus, select:focus{
      border-color:rgba(15,118,110,.35);
      box-shadow:0 0 0 4px rgba(15,118,110,.15);
    }
    .form-actions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      margin-top:4px;
    }
    .submit-btn{
      border:none;
      border-radius:14px;
      padding:12px 14px;
      background:linear-gradient(135deg, rgba(15,118,110,.98), rgba(11,95,87,.98));
      color:#fff;
      font-weight:860;
      letter-spacing:-.01em;
      cursor:pointer;
      box-shadow:0 16px 34px rgba(15,118,110,.22);
      display:inline-flex;
      align-items:center;
      gap:10px;
      transition:transform .12s ease, box-shadow .12s ease, filter .12s ease;
    }
    .submit-btn:active{transform:scale(.99)}
    .secondary-btn{
      background:rgba(255,255,255,.78);
      color:var(--text);
      border:1px solid rgba(17,24,39,.12);
      border-radius:14px;
      padding:12px 14px;
      font-weight:820;
      cursor:pointer;
      box-shadow:0 10px 24px rgba(17,24,39,.06);
      transition:transform .12s ease, box-shadow .12s ease;
    }
    .secondary-btn:active{transform:scale(.99)}
    .status{
      font-size:13px;
      color:var(--muted2);
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.68);
      display:none;
    }
    .status.show{display:block}
    .status.ok{
      border-color:rgba(15,118,110,.25);
      background:linear-gradient(180deg, rgba(15,118,110,.10), rgba(255,255,255,.66));
    }
    .status.err{
      border-color:rgba(185,28,28,.22);
      background:linear-gradient(180deg, rgba(185,28,28,.08), rgba(255,255,255,.66));
    }
    footer{
      margin-top:10px;
      background:rgba(255,255,255,.58);
      border-top:1px solid rgba(17,24,39,.08);
      padding:18px 0 26px;
    }
    .foot-grid{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:16px;
      flex-wrap:wrap;
    }
    .foot-left{
      min-width:260px;
    }
    .foot-left strong{
      display:block;
      letter-spacing:-.02em;
      margin-bottom:6px;
    }
    .foot-left p{
      margin:0;
      color:var(--muted2);
      font-size:13px;
      max-width:62ch;
    }
    .foot-links{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
      flex:1 1 auto;
    }
    .foot-links a{
      text-decoration:none;
      color:var(--muted2);
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.66);
      padding:9px 11px;
      border-radius:999px;
      font-size:13px;
      font-weight:700;
      transition:transform .12s ease, border-color .18s ease;
    }
    .foot-links a:hover{
      border-color:rgba(15,118,110,.25);
      transform:translateY(-1px);
    }
    .copy{
      margin-top:12px;
      color:var(--muted);
      font-size:12px;
    }
    .sr-only{
      position:absolute;
      width:1px;height:1px;
      padding:0;margin:-1px;
      overflow:hidden;clip:rect(0,0,0,0);
      white-space:nowrap;border:0;
    }
    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important; transition:none !important; animation:none !important}
    }