:root{
      --bg0:#fffdf7;
      --bg1:#f3f4f6;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#6b7280;
      --line:#e5e7eb;
      --primary:#0f766e;
      --primary2:#0b5a53;
      --chip:#ecfeff;
      --shadow: 0 10px 30px rgba(15,23,42,.08);
      --radius:18px;
    }
    *{box-sizing:border-box}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans CJK SC", "Noto Sans", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 20% -10%, rgba(15,118,110,.18), transparent 55%),
        radial-gradient(900px 500px at 100% 0%, rgba(14,165,233,.10), transparent 50%),
        linear-gradient(180deg, var(--bg0), var(--bg1));
      min-height:100vh;
    }
    a{color:inherit}
    .container{
      width:100%;
      max-width:1040px;
      margin:0 auto;
      padding:0 20px;
    }
    header{
      position:sticky;
      top:0;
      z-index:20;
      backdrop-filter: blur(10px);
      background: rgba(255,253,247,.72);
      border-bottom:1px solid rgba(229,231,235,.7);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:14px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width: 160px;
    }
    .logo{
      width:34px;height:34px;border-radius:12px;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), rgba(255,255,255,.2) 35%), linear-gradient(135deg, #0f766e, #22c55e);
      box-shadow: 0 10px 25px rgba(15,118,110,.18);
      border:1px solid rgba(255,255,255,.55);
      flex:0 0 auto;
    }
    .brand h1{
      margin:0;
      font-size:14px;
      letter-spacing:.2px;
      font-weight:760;
      color:#0f172a;
      line-height:1.2;
    }
    .brand p{
      margin:0;
      font-size:12px;
      color:var(--muted);
      line-height:1.2;
    }
    nav{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-link{
      text-decoration:none;
      padding:9px 10px;
      border-radius:12px;
      border:1px solid transparent;
      color:#0f172a;
      font-size:13px;
      font-weight:650;
      white-space:nowrap;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
    }
    .nav-link:hover{
      background: rgba(15,118,110,.06);
      border-color: rgba(15,118,110,.18);
      transform: translateY(-1px);
    }
    .nav-cta{
      text-decoration:none;
      padding:10px 14px;
      border-radius:14px;
      background: linear-gradient(135deg, rgba(15,118,110,1), rgba(34,197,94,.95));
      color:#fff;
      font-size:13px;
      font-weight:760;
      box-shadow: 0 12px 25px rgba(15,118,110,.22);
      border:1px solid rgba(255,255,255,.25);
      transition: transform .2s ease, filter .2s ease;
      white-space:nowrap;
    }
    .nav-cta:hover{transform: translateY(-1px); filter:saturate(1.05)}
    .hero{
      padding:26px 0 6px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-card{
      border:1px solid rgba(229,231,235,.85);
      background:
        linear-gradient(180deg, rgba(255,255,255,.9), rgba(255,255,255,.72));
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-card:before{
      content:"";
      position:absolute; inset:-2px -2px auto -2px;
      height:140px;
      background:
        radial-gradient(300px 90px at 18% 40%, rgba(15,118,110,.22), transparent 60%),
        radial-gradient(260px 90px at 70% 10%, rgba(14,165,233,.14), transparent 55%);
      pointer-events:none;
    }
    .kicker{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      margin-bottom:12px;
      position:relative;
      z-index:1;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border-radius:999px;
      background: var(--chip);
      border:1px solid rgba(15,118,110,.18);
      color:#0b5a53;
      font-size:12px;
      font-weight:740;
      letter-spacing:.2px;
    }
    .chip svg{width:14px;height:14px}
    .hero h2{
      margin:8px 0 8px;
      font-size:28px;
      line-height:1.18;
      letter-spacing:-.4px;
      font-weight:860;
      position:relative;
      z-index:1;
    }
    .hero p.lead{
      margin:0;
      color: #374151;
      font-size:14px;
      line-height:1.7;
      max-width: 56ch;
      position:relative;
      z-index:1;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:16px;
      position:relative;
      z-index:1;
    }
    .btn{
      appearance:none;
      border:none;
      cursor:pointer;
      border-radius:14px;
      padding:11px 14px;
      font-weight:800;
      font-size:13px;
      transition: transform .2s ease, background .2s ease, box-shadow .2s ease;
      display:inline-flex;
      align-items:center;
      gap:10px;
      text-decoration:none;
      user-select:none;
    }
    .btn-primary{
      color:#fff;
      background: linear-gradient(135deg, rgba(15,118,110,1), rgba(34,197,94,.95));
      box-shadow: 0 14px 30px rgba(15,118,110,.25);
      border:1px solid rgba(255,255,255,.25);
    }
    .btn-primary:hover{transform: translateY(-1px)}
    .btn-ghost{
      background: rgba(255,255,255,.7);
      border:1px solid rgba(229,231,235,.95);
      color:#0f172a;
      box-shadow: 0 8px 20px rgba(15,23,42,.06);
    }
    .btn-ghost:hover{transform: translateY(-1px); background: rgba(255,255,255,.9)}
    .btn svg{width:16px;height:16px}
    .hero-side{
      border:1px solid rgba(229,231,235,.85);
      background: rgba(255,255,255,.72);
      border-radius: var(--radius);
      box-shadow: 0 10px 25px rgba(15,23,42,.06);
      padding:18px;
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .side-title{
      margin:0;
      font-size:14px;
      font-weight:850;
      letter-spacing:-.2px;
    }
    .side-list{
      margin:0;
      padding:0;
      list-style:none;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .side-item{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:12px;
      border-radius:16px;
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.75);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }
    .side-item:hover{
      transform: translateY(-2px);
      border-color: rgba(15,118,110,.22);
      background: rgba(255,255,255,.92);
    }
    .badge{
      width:28px;height:28px;border-radius:10px;
      display:flex;align-items:center;justify-content:center;
      background: rgba(15,118,110,.10);
      border:1px solid rgba(15,118,110,.18);
      color: var(--primary2);
      flex:0 0 auto;
    }
    .side-item h3{
      margin:0;
      font-size:13px;
      font-weight:850;
      line-height:1.35;
    }
    .side-item p{
      margin:4px 0 0;
      font-size:12.5px;
      color:var(--muted);
      line-height:1.55;
    }
    main{
      padding: 10px 0 22px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:16px;
      align-items:start;
      margin-top:14px;
    }
    .section{
      border:1px solid rgba(229,231,235,.85);
      background: rgba(255,255,255,.78);
      border-radius: var(--radius);
      padding:18px;
      box-shadow: 0 10px 25px rgba(15,23,42,.05);
    }
    .section h2{
      margin:0 0 10px;
      font-size:16px;
      font-weight:900;
      letter-spacing:-.2px;
    }
    .section p{
      margin:0;
      color:#374151;
      font-size:13.5px;
      line-height:1.75;
    }
    .checklist{
      margin:12px 0 0;
      padding:0;
      list-style:none;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .check{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:12px;
      border-radius:16px;
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.75);
    }
    .tick{
      width:22px;height:22px;border-radius:9px;
      background: rgba(15,118,110,.12);
      border:1px solid rgba(15,118,110,.2);
      display:flex;align-items:center;justify-content:center;
      color:var(--primary2);
      flex:0 0 auto;
      margin-top:1px;
    }
    .check strong{
      display:block;
      font-size:13px;
      font-weight:900;
      margin-bottom:3px;
    }
    .check span{
      display:block;
      color:var(--muted);
      font-size:12.6px;
      line-height:1.6;
    }
    .faq{
      margin-top:16px;
      padding:0;
    }
    details{
      border:1px solid rgba(229,231,235,.9);
      border-radius:16px;
      background: rgba(255,255,255,.78);
      padding:12px 14px;
      margin-top:10px;
      transition: border-color .2s ease, transform .2s ease, background .2s ease;
    }
    details[open]{
      border-color: rgba(15,118,110,.25);
      background: rgba(255,255,255,.95);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      font-weight:920;
      font-size:13.5px;
      letter-spacing:-.15px;
      color:#0f172a;
    }
    summary::-webkit-details-marker{display:none}
    .chev{
      width:28px;height:28px;border-radius:12px;
      background: rgba(15,118,110,.10);
      border:1px solid rgba(15,118,110,.18);
      display:flex;align-items:center;justify-content:center;
      color:var(--primary2);
      flex:0 0 auto;
      transition: transform .2s ease;
    }
    details[open] .chev{transform: rotate(180deg)}
    .faq-body{
      margin-top:10px;
      color:#374151;
      font-size:13.3px;
      line-height:1.75;
    }
    .faq-body ul{
      margin:10px 0 0;
      padding-left:18px;
      color:var(--muted);
    }
    .faq-body li{margin:6px 0}
    .form-card{
      padding:18px;
      border-radius: var(--radius);
      border:1px solid rgba(229,231,235,.85);
      background:
        linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.72));
      box-shadow: 0 10px 25px rgba(15,23,42,.06);
      margin-top:16px;
    }
    .form-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      margin-bottom:12px;
    }
    .form-card h2{
      margin:0;
      font-size:16px;
      font-weight:950;
      letter-spacing:-.2px;
    }
    .form-hint{
      margin:6px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      max-width: 52ch;
    }
    form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      margin-top:12px;
    }
    .field-full{grid-column: 1 / -1}
    label{
      display:block;
      font-size:12.5px;
      font-weight:850;
      color:#111827;
      margin:0 0 8px;
      letter-spacing:.1px;
    }
    input, textarea, select{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(229,231,235,.95);
      background: rgba(255,255,255,.85);
      padding:12px 12px;
      font-size:14px;
      color:#0f172a;
      outline:none;
      transition: border-color .2s ease, box-shadow .2s ease, background .2s ease;
    }
    textarea{min-height:100px; 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,.12);
      background: rgba(255,255,255,.98);
    }
    .form-actions{
      grid-column: 1 / -1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      margin-top:4px;
    }
    .form-actions small{
      color:var(--muted);
      font-size:12.5px;
      line-height:1.5;
    }
    .submit{
      min-width: 160px;
    }
    .toast{
      position: fixed;
      left:50%;
      transform: translateX(-50%);
      bottom: 16px;
      background: rgba(15,23,42,.92);
      color:#fff;
      padding:10px 12px;
      border-radius: 14px;
      font-size:13px;
      box-shadow: 0 16px 40px rgba(0,0,0,.25);
      border: 1px solid rgba(255,255,255,.15);
      opacity:0;
      pointer-events:none;
      transition: opacity .2s ease, transform .2s ease;
      z-index:50;
      width: min(520px, calc(100% - 24px));
    }
    .toast.show{
      opacity:1;
      transform: translateX(-50%) translateY(-6px);
    }
    footer{
      padding:14px 0 28px;
    }
    .foot{
      border:1px solid rgba(229,231,235,.85);
      background: rgba(255,255,255,.75);
      border-radius: var(--radius);
      padding:14px 18px;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }
    .foot .left{
      min-width: 220px;
    }
    .foot h3{
      margin:0;
      font-size:14px;
      font-weight:950;
      letter-spacing:-.15px;
    }
    .foot p{
      margin:6px 0 0;
      color:var(--muted);
      font-size:12.8px;
      line-height:1.6;
    }
    .foot .right{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
      align-items:center;
    }
    .pill{
      padding:9px 11px;
      border-radius:999px;
      border:1px solid rgba(229,231,235,.95);
      background: rgba(255,255,255,.8);
      font-size:12.8px;
      color:#111827;
      font-weight:780;
    }
    @media (max-width: 860px){
      .hero-grid{grid-template-columns: 1fr}
      .grid-2{grid-template-columns: 1fr}
      form{grid-template-columns: 1fr}
      .submit{min-width: unset; width:100%}
    }
    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .5s ease, transform .5s ease;
    }
    .reveal.in{
      opacity:1;
      transform: translateY(0);
    }