:root{
      --bg0:#f6f0e7;
      --bg1:#ffffff;
      --text:#1f2328;
      --muted:#5b616a;
      --card:#ffffff;
      --line:rgba(31,35,40,.12);
      --shadow:0 10px 30px rgba(19,22,26,.08);
      --shadow2:0 6px 18px rgba(19,22,26,.10);
      --brand:#9a6a3a;
      --brand2:#c08a57;
      --accent:#1f6feb;
      --accent2:#0ea5a4;
      --radius:18px;
      --radius2:14px;
      --max:1120px;
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 600px at 10% -10%, rgba(154,106,58,.18), transparent 55%),
        radial-gradient(900px 450px at 92% 5%, rgba(14,165,164,.16), transparent 55%),
        linear-gradient(180deg, var(--bg0), #fff 55%);
      overflow-x:hidden;
    }
    a{color:inherit}
    .container{
      max-width:var(--max);
      margin:0 auto;
      padding:0 18px;
    }

    header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(130%) blur(10px);
      background:rgba(246,240,231,.72);
      border-bottom:1px solid rgba(31,35,40,.08);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:140px;
    }
    .logo{
      width:40px;height:40px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(154,106,58,.18), rgba(192,138,87,.22));
      border:1px solid rgba(154,106,58,.35);
      display:flex;align-items:center;justify-content:center;
      box-shadow:0 10px 18px rgba(154,106,58,.12);
      flex:0 0 auto;
    }
    .logo span{
      font-weight:800;
      letter-spacing:.02em;
      font-size:20px;
      color:#8a542c;
    }
    .brand strong{
      font-size:14px;
      color:#2a2f36;
      line-height:1.1;
      display:block;
    }
    .brand small{
      display:block;
      font-size:12px;
      color:var(--muted);
      margin-top:2px;
      white-space:nowrap;
    }

    nav{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      text-decoration:none;
      font-size:13px;
      color:#2c3139;
      padding:8px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition:transform .18s ease, background .18s ease, border-color .18s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(154,106,58,.10);
      border-color:rgba(154,106,58,.25);
      transform:translateY(-1px);
    }

    .nav-cta{
      display:flex;
      gap:10px;
      align-items:center;
    }
    .btn{
      appearance:none;
      border:1px solid transparent;
      background:#fff;
      color:#1d1f24;
      padding:10px 12px;
      border-radius:14px;
      font-weight:700;
      font-size:13px;
      text-decoration:none;
      box-shadow:0 10px 20px rgba(0,0,0,.06);
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      cursor:pointer;
      white-space:nowrap;
    }
    .btn:hover{transform:translateY(-1px); box-shadow:0 14px 26px rgba(0,0,0,.09)}
    .btn-primary{
      background:linear-gradient(135deg, var(--brand), var(--brand2));
      color:#fff;
      border-color:rgba(154,106,58,.25);
      box-shadow:0 14px 26px rgba(154,106,58,.20);
    }
    .btn-primary:hover{box-shadow:0 18px 32px rgba(154,106,58,.26)}
    .btn-ghost{
      background:rgba(255,255,255,.70);
      border-color:rgba(31,35,40,.10);
      box-shadow:none;
    }

    .hero{
      padding:26px 0 18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.25fr .75fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-card{
      background:
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.92)),
        radial-gradient(900px 420px at 0% 0%, rgba(154,106,58,.18), transparent 50%),
        radial-gradient(700px 380px at 85% 10%, rgba(14,165,164,.16), transparent 55%);
      border:1px solid rgba(31,35,40,.10);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:22px;
      position:relative;
      overflow:hidden;
      transform:translateZ(0);
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(90deg, rgba(154,106,58,.16), transparent 35%, rgba(14,165,164,.14));
      opacity:.35;
      pointer-events:none;
      mask:linear-gradient(#000, transparent 70%);
    }
    .hero-kicker{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
      margin-bottom:10px;
      position:relative;
      z-index:1;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(154,106,58,.25);
      background:rgba(255,255,255,.65);
      font-size:12px;
      color:#3b2a1f;
      font-weight:700;
    }
    .dot{
      width:10px;height:10px;border-radius:50%;
      background:linear-gradient(135deg, var(--accent2), var(--accent));
      box-shadow:0 8px 16px rgba(14,165,164,.25);
      flex:0 0 auto;
    }
    .hero h1{
      margin:0;
      font-size:30px;
      line-height:1.18;
      letter-spacing:-.02em;
      position:relative;
      z-index:1;
    }
    .lead{
      margin:12px 0 16px;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
      position:relative; z-index:1;
      max-width:66ch;
    }
    .hero-actions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      position:relative;
      z-index:1;
      margin-top:14px;
    }
    .quick-list{
      margin-top:18px;
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:10px;
      position:relative; z-index:1;
    }
    .mini{
      background:rgba(255,255,255,.75);
      border:1px solid rgba(31,35,40,.10);
      border-radius:16px;
      padding:12px 12px;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .mini:hover{
      transform:translateY(-2px);
      border-color:rgba(154,106,58,.28);
      box-shadow:0 14px 26px rgba(0,0,0,.07);
    }
    .mini strong{
      display:block;
      font-size:13px;
      margin-bottom:6px;
      letter-spacing:-.01em;
    }
    .mini span{
      display:block;
      font-size:12px;
      color:var(--muted);
      line-height:1.45;
    }

    .aside{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .aside-card{
      background:rgba(255,255,255,.85);
      border:1px solid rgba(31,35,40,.10);
      border-radius:var(--radius);
      box-shadow:0 10px 24px rgba(19,22,26,.06);
      padding:16px;
      overflow:hidden;
      position:relative;
    }
    .aside-card:after{
      content:"";
      position:absolute;
      right:-60px; top:-60px;
      width:160px; height:160px;
      background:radial-gradient(circle at 30% 30%, rgba(154,106,58,.25), transparent 60%);
      pointer-events:none;
    }
    .aside-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
      position:relative; z-index:1;
    }
    .aside-title strong{
      font-size:14px;
      letter-spacing:-.01em;
    }
    .badge{
      font-size:12px;
      font-weight:800;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(154,106,58,.10);
      border:1px solid rgba(154,106,58,.25);
      color:#6e431f;
      white-space:nowrap;
    }
    .contact-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
      position:relative; z-index:1;
    }
    .contact-item{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:10px;
      border-radius:14px;
      border:1px solid rgba(31,35,40,.08);
      background:rgba(255,255,255,.75);
    }
    .icon{
      width:34px;height:34px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(14,165,164,.16), rgba(31,111,235,.14));
      border:1px solid rgba(14,165,164,.22);
      display:flex;align-items:center;justify-content:center;
      flex:0 0 auto;
      color:#0c6b6b;
      font-weight:900;
      font-size:14px;
    }
    .contact-item b{
      display:block;
      font-size:13px;
      margin-bottom:2px;
    }
    .contact-item p{
      margin:0;
      font-size:12px;
      color:var(--muted);
      line-height:1.55;
    }
    .qr-row{
      display:flex;
      gap:12px;
      align-items:center;
      flex-wrap:wrap;
      margin-top:10px;
    }
    .qr{
      display:flex;flex-direction:column;gap:8px; align-items:flex-start;
      flex:0 0 auto;
    }
    .qr img{
      width:92px; height:92px;
      border-radius:16px;
      border:1px solid rgba(31,35,40,.10);
      background:#fff;
      box-shadow:0 10px 18px rgba(0,0,0,.06);
    }
    .qr span{
      font-size:12px;
      color:var(--muted);
      max-width:18ch;
      line-height:1.45;
    }

    .section{
      padding:14px 0;
    }
    .section-title{
      display:flex; align-items:flex-end; justify-content:space-between; gap:12px;
      margin:6px 0 12px;
    }
    .section-title h2{
      margin:0;
      font-size:18px;
      letter-spacing:-.01em;
    }
    .section-title p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.5;
      max-width:48ch;
    }

    .toc{
      background:rgba(255,255,255,.75);
      border:1px solid rgba(31,35,40,.10);
      border-radius:var(--radius);
      padding:14px;
      box-shadow:0 10px 20px rgba(0,0,0,.05);
    }
    .toc-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .toc a{
      text-decoration:none;
    }
    .toc-item{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(31,35,40,.08);
      background:rgba(255,255,255,.75);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .toc-item:hover{
      transform:translateY(-2px);
      border-color:rgba(154,106,58,.28);
      background:rgba(255,255,255,.92);
    }
    .toc-item strong{
      font-size:13px;
      letter-spacing:-.01em;
    }
    .toc-item span{
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }

    .grid2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
    }
    .card{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(31,35,40,.10);
      border-radius:var(--radius);
      box-shadow:0 10px 24px rgba(19,22,26,.06);
      padding:16px;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform:translateY(-2px);
      border-color:rgba(154,106,58,.25);
      box-shadow:0 16px 30px rgba(19,22,26,.09);
    }
    .card h3{
      margin:0 0 8px;
      font-size:16px;
      letter-spacing:-.01em;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }
    .list{
      margin:10px 0 0;
      padding:0;
      list-style:none;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .li{
      display:flex; gap:10px; align-items:flex-start;
      padding:10px;
      border-radius:14px;
      background:rgba(255,255,255,.70);
      border:1px solid rgba(31,35,40,.08);
    }
    .tick{
      width:26px;height:26px;border-radius:10px;
      background:rgba(14,165,164,.12);
      border:1px solid rgba(14,165,164,.20);
      color:#0c6b6b;
      display:flex;align-items:center;justify-content:center;
      font-weight:900;
      flex:0 0 auto;
      margin-top:1px;
      font-size:13px;
    }
    .li b{font-size:13px; display:block; margin-bottom:2px;}
    .li span{font-size:12px; color:var(--muted); line-height:1.5;}

    .steps{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .step{
      padding:14px;
      border-radius:var(--radius);
      background:linear-gradient(180deg, rgba(255,255,255,.85), rgba(255,255,255,.95));
      border:1px solid rgba(31,35,40,.10);
      box-shadow:0 10px 20px rgba(0,0,0,.05);
      display:flex;
      gap:14px;
      align-items:flex-start;
    }
    .step-num{
      width:40px; height:40px;
      border-radius:14px;
      background:linear-gradient(135deg, rgba(154,106,58,.22), rgba(192,138,87,.18));
      border:1px solid rgba(154,106,58,.26);
      display:flex;align-items:center;justify-content:center;
      font-weight:900;
      color:#7a4b22;
      flex:0 0 auto;
    }
    .step h3{
      margin:0 0 6px;
      font-size:15px;
    }
    .step p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }

    details.faq{
      background:rgba(255,255,255,.86);
      border:1px solid rgba(31,35,40,.10);
      border-radius:var(--radius);
      padding:12px 14px;
      box-shadow:0 10px 18px rgba(0,0,0,.05);
      transition:border-color .18s ease, transform .18s ease, box-shadow .18s ease;
    }
    details.faq[open]{
      border-color:rgba(154,106,58,.28);
      box-shadow:0 16px 28px rgba(0,0,0,.08);
      transform:translateY(-2px);
    }
    details.faq summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:10px;
      font-weight:800;
      font-size:14px;
      color:#262a31;
      padding:2px 0;
    }
    details.faq summary::-webkit-details-marker{display:none}
    .chev{
      width:26px;height:26px;border-radius:10px;
      border:1px solid rgba(31,35,40,.10);
      background:rgba(255,255,255,.75);
      display:flex;align-items:center;justify-content:center;
      color:#6a707a;
      flex:0 0 auto;
      margin-top:-2px;
      transition:transform .18s ease;
    }
    details.faq[open] .chev{transform:rotate(180deg)}
    .faq .answer{
      margin-top:10px;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }
    .faq-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }

    .summary-box{
      border-radius:var(--radius);
      background:
        linear-gradient(135deg, rgba(154,106,58,.18), rgba(14,165,164,.10)),
        rgba(255,255,255,.86);
      border:1px solid rgba(31,35,40,.10);
      padding:16px;
      box-shadow:0 14px 26px rgba(19,22,26,.08);
      overflow:hidden;
      position:relative;
    }
    .summary-box:before{
      content:"";
      position:absolute;
      left:-120px; top:-140px;
      width:260px; height:260px;
      background:radial-gradient(circle at 30% 30%, rgba(154,106,58,.26), transparent 60%);
      pointer-events:none;
    }
    .summary-box p{
      margin:0;
      color:#343a44;
      font-size:13px;
      line-height:1.85;
      position:relative;
      z-index:1;
    }

    .inner-links{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      margin-top:12px;
    }
    .link-tag{
      text-decoration:none;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(31,35,40,.10);
      background:rgba(255,255,255,.76);
      font-size:13px;
      font-weight:750;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .link-tag:hover{
      transform:translateY(-2px);
      border-color:rgba(154,106,58,.28);
      background:rgba(255,255,255,.95);
    }

    footer{
      margin-top:10px;
      background:linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.85));
      border-top:1px solid rgba(31,35,40,.08);
    }
    .footer-wrap{
      padding:18px 0 22px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .footer-card{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(31,35,40,.10);
      border-radius:var(--radius);
      padding:14px;
      box-shadow:0 10px 18px rgba(0,0,0,.05);
    }
    .footer-card h3{
      margin:0 0 10px;
      font-size:15px;
    }
    .footer-card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }
    .footer-links{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-top:10px;
    }
    .footer-links a{
      text-decoration:none;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(31,35,40,.10);
      background:rgba(255,255,255,.74);
      font-size:13px;
      font-weight:750;
      transition:transform .18s ease, border-color .18s ease;
    }
    .footer-links a:hover{
      transform:translateY(-2px);
      border-color:rgba(154,106,58,.28);
    }
    .copyright{
      text-align:center;
      color:rgba(31,35,40,.62);
      font-size:12px;
      margin-top:12px;
    }

    .float-top{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:60;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .toTop{
      pointer-events:auto;
      width:44px;height:44px;
      border-radius:16px;
      border:1px solid rgba(31,35,40,.10);
      background:rgba(255,255,255,.86);
      box-shadow:0 16px 30px rgba(0,0,0,.10);
      display:flex;align-items:center;justify-content:center;
      cursor:pointer;
      transition:transform .18s ease, opacity .18s ease;
      opacity:0;
      transform:translateY(8px);
    }
    .toTop.show{
      opacity:1;
      transform:translateY(0);
    }

    @media (max-width: 940px){
      .hero-grid{grid-template-columns: 1fr; }
      .quick-list{grid-template-columns: 1fr; }
      .footer-grid{grid-template-columns: 1fr; }
    }
    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .btn,.card,.mini,.toc-item,.toTop{transition:none !important}
    }
    html{scroll-behavior:smooth}
    .reveal{
      opacity:0;
      transform:translateY(10px);
      transition:opacity .5s ease, transform .5s ease;
    }
    .reveal.on{
      opacity:1;
      transform:translateY(0);
    }