:root{
      --bg0:#f7f3ee;
      --bg1:#ffffff;
      --ink:#1f2328;
      --muted:#5b6572;
      --line:rgba(20,25,31,.10);
      --card:rgba(255,255,255,.78);
      --card2:rgba(255,255,255,.92);
      --brand:#3b5bdb;
      --brand2:#2a7a62;
      --shadow:0 10px 30px rgba(20,25,31,.10);
      --shadow2:0 6px 18px rgba(20,25,31,.10);
      --ring:0 0 0 4px rgba(59,91,219,.12);
      --radius:18px;
      --radius2:14px;
      --max:1080px;
      --pad: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","Liberation Sans",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(900px 520px at 20% 0%, rgba(59,91,219,.10), transparent 55%),
        radial-gradient(820px 520px at 95% 10%, rgba(42,122,98,.10), transparent 55%),
        linear-gradient(180deg, var(--bg0), #ffffff 38%, var(--bg1));
      overflow-x:hidden;
    }
    a{color:inherit}
    .container{
      width:100%;
      max-width:var(--max);
      margin:0 auto;
      padding:0 var(--pad);
    }
    header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(247,243,238,.72);
      backdrop-filter:saturate(140%) blur(10px);
      border-bottom:1px solid rgba(20,25,31,.08);
    }
    .nav{
      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;
    }
    .logoMark{
      width:38px;
      height:38px;
      border-radius:12px;
      display:grid;
      place-items:center;
      font-weight:900;
      letter-spacing:.02em;
      background:linear-gradient(145deg, rgba(59,91,219,.18), rgba(42,122,98,.14));
      border:1px solid rgba(20,25,31,.10);
      box-shadow:0 10px 26px rgba(59,91,219,.12);
    }
    .brandText{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brandText strong{font-size:14px}
    .brandText span{font-size:12px;color:var(--muted)}
    .navRight{
      display:flex;
      align-items:center;
      justify-content:flex-end;
      gap:10px;
      flex-wrap:wrap;
    }
    .navLinks{
      display:flex;
      gap:14px;
      align-items:center;
    }
    .navLinks a{
      text-decoration:none;
      font-size:13px;
      color:rgba(31,35,40,.88);
      padding:8px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
      white-space:nowrap;
    }
    .navLinks a:hover{
      border-color:rgba(59,91,219,.22);
      background:rgba(255,255,255,.55);
      transform:translateY(-1px);
    }
    .primaryBtn{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:10px 14px;
      border-radius:14px;
      border:1px solid rgba(59,91,219,.28);
      background:linear-gradient(180deg, rgba(59,91,219,.14), rgba(59,91,219,.06));
      color:rgba(28,44,110,.98);
      text-decoration:none;
      font-weight:700;
      font-size:13px;
      transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
      box-shadow:0 10px 24px rgba(59,91,219,.10);
      white-space:nowrap;
    }
    .primaryBtn:focus{outline:none; box-shadow:var(--ring), 0 10px 24px rgba(59,91,219,.10)}
    .primaryBtn:hover{transform:translateY(-1px); border-color:rgba(59,91,219,.45)}
    .menuBtn{
      display:none;
      width:42px;
      height:42px;
      border-radius:14px;
      border:1px solid rgba(20,25,31,.12);
      background:rgba(255,255,255,.6);
      cursor:pointer;
      transition:transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .menuBtn:hover{transform:translateY(-1px); border-color:rgba(59,91,219,.24); background:rgba(255,255,255,.78)}
    .menuIcon{
      width:18px;height:12px; margin:0 auto; position:relative;
    }
    .menuIcon span{
      position:absolute; left:0; right:0;
      height:2px; border-radius:2px;
      background:rgba(31,35,40,.82);
      transition:transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .menuIcon span:nth-child(1){top:0}
    .menuIcon span:nth-child(2){top:5px}
    .menuIcon span:nth-child(3){top:10px}
    .mobilePanel{
      display:none;
      padding:0 0 14px 0;
    }
    .mobilePanel .mobileLinks{
      display:flex;
      flex-direction:column;
      gap:10px;
      padding-top:10px;
    }
    .mobilePanel a{
      text-decoration:none;
      font-size:14px;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.55);
    }

    .hero{
      padding:22px 0 14px;
    }
    .heroGrid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .heroCard{
      border:1px solid rgba(20,25,31,.10);
      background:linear-gradient(180deg, rgba(255,255,255,.72), rgba(255,255,255,.92));
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      padding:20px;
      position:relative;
      overflow:hidden;
    }
    .heroCard:before{
      content:"";
      position:absolute;
      inset:-2px -2px auto -2px;
      height:180px;
      background:
        radial-gradient(140px 90px at 16% 35%, rgba(59,91,219,.18), transparent 62%),
        radial-gradient(150px 110px at 64% 10%, rgba(42,122,98,.16), transparent 60%),
        radial-gradient(220px 120px at 92% 70%, rgba(59,91,219,.10), transparent 62%);
      pointer-events:none;
    }
    .heroInner{
      position:relative;
      display:flex;
      flex-direction:column;
      gap:14px;
      min-height:260px;
    }
    .kicker{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.62);
      font-size:12px;
      color:rgba(31,35,40,.86);
    }
    .dot{
      width:8px;height:8px;border-radius:50%;
      background:linear-gradient(180deg, rgba(59,91,219,.95), rgba(42,122,98,.75));
      box-shadow:0 0 0 4px rgba(59,91,219,.10);
    }
    h1{
      margin:0;
      font-size:28px;
      letter-spacing:-.02em;
      line-height:1.2;
    }
    .lead{
      margin:0;
      color:var(--muted);
      font-size:14.5px;
      line-height:1.7;
      max-width:58ch;
    }
    .heroActions{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      padding-top:6px;
    }
    .ghostBtn{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding:10px 14px;
      border-radius:14px;
      border:1px solid rgba(20,25,31,.12);
      background:rgba(255,255,255,.62);
      text-decoration:none;
      font-weight:700;
      font-size:13px;
      color:rgba(31,35,40,.90);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .ghostBtn:hover{transform:translateY(-1px); border-color:rgba(59,91,219,.24); background:rgba(255,255,255,.78)}
    .hintRow{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      margin-top:auto;
      padding-top:10px;
    }
    .hint{
      flex:1 1 160px;
      border-radius:14px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.62);
      padding:10px 12px;
      display:flex;
      gap:10px;
      align-items:flex-start;
      transition:transform .2s ease;
    }
    .hint:hover{transform:translateY(-2px)}
    .hint b{font-size:13px}
    .hint p{margin:2px 0 0; font-size:12.5px; color:var(--muted); line-height:1.5}
    .iconBadge{
      width:30px;height:30px;border-radius:12px;
      border:1px solid rgba(20,25,31,.10);
      background:linear-gradient(180deg, rgba(59,91,219,.10), rgba(42,122,98,.08));
      display:grid; place-items:center;
      flex:0 0 auto;
      color:rgba(31,35,40,.85);
      font-weight:900;
      font-size:13px;
    }

    .sideCard{
      border-radius:var(--radius);
      border:1px solid rgba(20,25,31,.10);
      background:linear-gradient(180deg, rgba(255,255,255,.70), rgba(255,255,255,.94));
      box-shadow:var(--shadow2);
      padding:16px;
      display:flex;
      flex-direction:column;
      gap:12px;
      min-height:260px;
    }
    .sideTitle{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .sideTitle h2{
      margin:0;
      font-size:15px;
      letter-spacing:-.01em;
    }
    .miniTag{
      font-size:12px;
      color:rgba(42,122,98,.98);
      border:1px solid rgba(42,122,98,.20);
      background:rgba(42,122,98,.08);
      padding:6px 10px;
      border-radius:999px;
      white-space:nowrap;
    }
    .sideList{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .sideItem{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:10px 10px;
      border-radius:14px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.62);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .sideItem:hover{
      transform:translateY(-1px);
      border-color:rgba(59,91,219,.22);
      background:rgba(255,255,255,.78);
    }
    .sideItem strong{font-size:13px}
    .sideItem span{display:block; margin-top:2px; color:var(--muted); font-size:12.5px; line-height:1.45}
    .sideArrow{
      margin-left:auto;
      width:26px;height:26px;border-radius:10px;
      border:1px solid rgba(20,25,31,.10);
      display:grid; place-items:center;
      color:rgba(31,35,40,.78);
      background:rgba(255,255,255,.55);
      flex:0 0 auto;
    }

    main{padding:6px 0 26px}
    .section{
      padding:12px 0 6px;
    }
    .sectionHead{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:14px;
      margin:10px 0 12px;
    }
    .sectionHead h2{
      margin:0;
      font-size:18px;
      letter-spacing:-.01em;
    }
    .sectionHead p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      max-width:52ch;
    }

    .grid2{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:14px;
      align-items:stretch;
    }
    .card{
      border-radius:var(--radius2);
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.70);
      box-shadow:0 10px 24px rgba(20,25,31,.06);
      padding:14px;
      position:relative;
      overflow:hidden;
    }
    .card h3{
      margin:0 0 6px;
      font-size:15px;
      letter-spacing:-.01em;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }
    .steps{
      display:flex;
      flex-direction:column;
      gap:10px;
      margin-top:10px;
    }
    .step{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding:10px 10px;
      border-radius:14px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.62);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .step:hover{transform:translateY(-1px); border-color:rgba(59,91,219,.22); background:rgba(255,255,255,.78)}
    .stepNum{
      width:30px;height:30px;border-radius:12px;
      display:grid; place-items:center;
      font-weight:900;
      background:linear-gradient(180deg, rgba(59,91,219,.14), rgba(42,122,98,.10));
      border:1px solid rgba(20,25,31,.10);
      flex:0 0 auto;
      color:rgba(31,35,40,.88);
    }
    .step b{font-size:13.5px}
    .step span{display:block; margin-top:2px; color:var(--muted); font-size:12.5px; line-height:1.55}

    .anchorRow{
      margin-top:10px;
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .anchorLink{
      text-decoration:none;
      font-size:13px;
      color:rgba(31,35,40,.92);
      border:1px solid rgba(20,25,31,.12);
      background:rgba(255,255,255,.64);
      padding:10px 12px;
      border-radius:14px;
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .anchorLink:hover{transform:translateY(-1px); border-color:rgba(42,122,98,.28); background:rgba(255,255,255,.78)}
    .anchorLink:focus{outline:none; box-shadow:var(--ring)}

    .imgWrap{
      border-radius:var(--radius2);
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.68);
      overflow:hidden;
      box-shadow:0 10px 24px rgba(20,25,31,.06);
    }
    figure{margin:0}
    .media{
      width:100%;
      aspect-ratio:16/9;
      display:flex;
      align-items:center;
      justify-content:center;
      background:linear-gradient(180deg, rgba(255,255,255,.6), rgba(255,255,255,.95));
    }
    img{
      width:100%;
      max-width:100%;
      height:auto;
      display:block;
      object-fit:cover;
      transform:translateZ(0);
      transition:transform .35s ease;
    }
    .imgWrap:hover img{transform:scale(1.02)}
    .imgCaption{
      padding:12px 14px;
      border-top:1px solid rgba(20,25,31,.10);
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
    }

    .faqGrid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:12px;
      align-items:start;
    }
    details{
      border-radius:14px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.70);
      padding:12px 12px;
      box-shadow:0 10px 22px rgba(20,25,31,.04);
      transition:border-color .18s ease, transform .18s ease, background .18s ease;
    }
    details[open]{border-color:rgba(59,91,219,.26); background:rgba(255,255,255,.82)}
    details:hover{transform:translateY(-1px)}
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      gap:10px;
      font-weight:800;
      color:rgba(31,35,40,.95);
      font-size:13.5px;
      line-height:1.35;
    }
    summary::-webkit-details-marker{display:none}
    .sumIcon{
      width:28px;height:28px;border-radius:12px;
      display:grid; place-items:center;
      border:1px solid rgba(20,25,31,.10);
      background:linear-gradient(180deg, rgba(59,91,219,.12), rgba(42,122,98,.08));
      flex:0 0 auto;
      margin-top:1px;
      color:rgba(31,35,40,.85);
      font-weight:900;
    }
    .faqBody{
      margin-top:10px;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.75;
    }
    .faqBody ul{margin:8px 0 0; padding-left:18px}
    .faqBody li{margin:6px 0}

    .linksCard{
      border-radius:var(--radius);
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.66);
      box-shadow:0 10px 26px rgba(20,25,31,.06);
      padding:14px;
    }
    .linkList{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      margin-top:10px;
    }
    .textLink{
      text-decoration:none;
      border:1px solid rgba(20,25,31,.12);
      background:rgba(255,255,255,.64);
      border-radius:14px;
      padding:10px 12px;
      font-size:13px;
      color:rgba(31,35,40,.92);
      transition:transform .18s ease, border-color .18s ease, background .18s ease;
      display:flex;
      gap:10px;
      align-items:center;
    }
    .textLink:hover{
      transform:translateY(-1px);
      border-color:rgba(59,91,219,.26);
      background:rgba(255,255,255,.80);
    }
    .textLink:focus{outline:none; box-shadow:var(--ring)}
    .linkMark{
      width:22px;height:22px;border-radius:10px;
      border:1px solid rgba(20,25,31,.10);
      background:rgba(59,91,219,.08);
      display:grid; place-items:center;
      color:rgba(59,91,219,.98);
      font-weight:900;
      flex:0 0 auto;
      font-size:12px;
    }

    footer{
      border-top:1px solid rgba(20,25,31,.10);
      background:linear-gradient(180deg, rgba(255,255,255,.65), rgba(247,243,238,.85));
      padding:16px 0 18px;
    }
    .footerGrid{
      display:grid;
      grid-template-columns:1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .footerCard{
      border-radius:var(--radius);
      border:1px solid rgba(20,25,31,.10);
      background:rgba(255,255,255,.70);
      padding:14px;
    }
    .footerCard h3{
      margin:0 0 8px;
      font-size:15px;
    }
    .footerCard p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.7;
    }
    .footerMeta{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .copyRow{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      margin-top:12px;
      color:rgba(31,35,40,.78);
      font-size:12.5px;
    }
    .backTop{
      width:42px;height:42px;border-radius:14px;
      border:1px solid rgba(20,25,31,.12);
      background:rgba(255,255,255,.65);
      cursor:pointer;
      transition:transform .18s ease, border-color .18s ease, background .18s ease, opacity .18s ease;
      opacity:.95;
      display:grid; place-items:center;
    }
    .backTop:hover{transform:translateY(-1px); border-color:rgba(59,91,219,.24); background:rgba(255,255,255,.82)}
    .backTop:focus{outline:none; box-shadow:var(--ring)}
    .divider{
      height:1px;
      background:rgba(20,25,31,.08);
      margin:10px 0 0;
    }

    @media (max-width: 900px){
      .heroGrid{grid-template-columns:1fr; }
      .heroInner{min-height:auto}
      .sideCard{min-height:auto}
      .grid2{grid-template-columns:1fr}
      .faqGrid{grid-template-columns:1fr}
      .linkList{grid-template-columns:1fr}
      .footerGrid{grid-template-columns:1fr}
      .navLinks{display:none}
      .menuBtn{display:block}
      .mobilePanel{display:block}
      .mobilePanel.hidden{display:none}
    }

    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .hint,.sideItem,.step,details,.textLink{transition:none !important}
      .imgWrap:hover img{transform:none}
    }