:root{
      --bg0:#f7fbff;
      --bg1:#eef7ff;
      --ink:#1b2a3a;
      --muted:#4b6075;
      --line:rgba(23,56,92,.12);
      --card:rgba(255,255,255,.78);
      --card2:rgba(255,255,255,.9);
      --brand:#0a7aa8;
      --brand2:#1fb6d3;
      --brand3:#2f5cff;
      --shadow: 0 18px 40px rgba(7,42,74,.10);
      --shadow2: 0 10px 26px rgba(7,42,74,.12);
      --radius:18px;
      --radius2:14px;
      --ring: 0 0 0 3px rgba(31,182,211,.18);
      --focus: rgba(31,182,211,.35);
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    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 SC", sans-serif;
      color:var(--ink);
      background:
        radial-gradient(1200px 520px at 18% -10%, rgba(31,182,211,.24), transparent 60%),
        radial-gradient(1000px 540px at 84% 0%, rgba(47,92,255,.16), transparent 56%),
        linear-gradient(180deg, var(--bg0) 0%, var(--bg1) 55%, #ffffff 100%);
      overflow-x:hidden;
    }
    a{color:inherit}
    .container{
      width:100%;
      max-width:1120px;
      margin:0 auto;
      padding:0 18px;
    }
    .skip{
      position:absolute; left:-9999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip:focus{
      left:16px; top:16px; width:auto; height:auto; padding:10px 12px;
      background:#fff; border:1px solid var(--line); border-radius:12px; z-index:9999;
      box-shadow:var(--shadow2);
    }

    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(247,251,255,.66);
      border-bottom: 1px solid rgba(23,56,92,.08);
    }
    .topbar{
      display:flex; align-items:center; justify-content:space-between;
      padding:14px 0;
      gap:14px;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 160px;
    }
    .logoMark{
      width:40px; height:40px; border-radius:14px;
      display:grid; place-items:center;
      background: linear-gradient(135deg, rgba(10,122,168,.20), rgba(31,182,211,.22));
      border:1px solid rgba(10,122,168,.18);
      box-shadow: 0 10px 22px rgba(10,122,168,.10);
      position:relative;
      overflow:hidden;
    }
    .logoMark::after{
      content:"";
      position:absolute; inset:-40%;
      background: radial-gradient(circle at 20% 20%, rgba(31,182,211,.65), transparent 48%);
      transform: rotate(18deg);
      opacity:.55;
    }
    .logoText{
      position:relative;
      font-weight:900; letter-spacing:1px;
      color:#064a66;
    }
    .brandName{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .brandName strong{
      font-size:14px; color:#0b3552;
    }
    .brandName span{
      font-size:12px; color:var(--muted);
      margin-top:4px;
      white-space:nowrap;
    }
    nav{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap; justify-content:flex-end;
    }
    .navLinks{
      display:flex; align-items:center; gap:8px; flex-wrap:wrap;
    }
    .navLinks a{
      text-decoration:none;
      color:#164a66;
      font-size:13px;
      padding:10px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease;
    }
    .navLinks a:hover{
      background: rgba(31,182,211,.10);
      border-color: rgba(31,182,211,.18);
      transform: translateY(-1px);
    }
    .navCTA{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      appearance:none; border:1px solid transparent;
      padding:11px 14px;
      border-radius:14px;
      font-weight:750;
      letter-spacing:.2px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease, background .15s ease, border-color .15s ease;
      text-decoration:none;
      display:inline-flex; align-items:center; gap:10px;
      user-select:none;
    }
    .btn:focus{outline:none; box-shadow: var(--ring);}
    .btnPrimary{
      background: linear-gradient(135deg, #0a7aa8, #1fb6d3);
      color:#fff;
      box-shadow: 0 16px 36px rgba(10,122,168,.22);
      border-color: rgba(255,255,255,.20);
      white-space:nowrap;
    }
    .btnPrimary:hover{ transform: translateY(-1px); box-shadow: 0 20px 46px rgba(10,122,168,.26); }
    .btnGhost{
      background: rgba(255,255,255,.72);
      color:#0b3552;
      border-color: rgba(23,56,92,.14);
      white-space:nowrap;
    }
    .btnGhost:hover{ transform: translateY(-1px); border-color: rgba(31,182,211,.26); background: rgba(255,255,255,.86); }
    .icon{
      width:18px; height:18px; display:inline-block;
    }

    .hero{
      padding:26px 0 18px;
    }
    .heroGrid{
      display:grid;
      grid-template-columns: 1.25fr .85fr;
      gap:18px;
      align-items:stretch;
    }
    .heroCard{
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background:
        radial-gradient(1000px 420px at 0% 0%, rgba(31,182,211,.18), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.66));
      box-shadow: var(--shadow);
      padding:22px 20px;
      position:relative;
      overflow:hidden;
      animation: rise .6s ease both;
    }
    .heroCard::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(520px 220px at 12% 14%, rgba(31,182,211,.30), transparent 60%),
        radial-gradient(520px 220px at 86% 20%, rgba(47,92,255,.18), transparent 58%);
      opacity:.7;
      pointer-events:none;
    }
    .heroInner{ position:relative; }
    .kicker{
      display:inline-flex; gap:10px; align-items:center;
      padding:8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(31,182,211,.22);
      background: rgba(255,255,255,.62);
      color:#0b3552;
      font-weight:750;
      font-size:12px;
      margin-bottom:12px;
    }
    .dot{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow: 0 0 0 4px rgba(31,182,211,.14);
    }
    h1{
      margin:0;
      font-size:34px;
      line-height:1.18;
      letter-spacing:-.5px;
      color:#0a2b3f;
    }
    .lead{
      margin:12px 0 0;
      color: var(--muted);
      font-size:15px;
      line-height:1.65;
      max-width: 62ch;
    }
    .heroActions{
      display:flex; flex-wrap:wrap; gap:12px;
      margin-top:16px;
      align-items:center;
    }
    .metaRow{
      margin-top:14px;
      display:flex; flex-wrap:wrap; gap:10px;
      color:#123d57;
    }
    .pill{
      padding:9px 10px;
      background: rgba(255,255,255,.65);
      border: 1px solid rgba(23,56,92,.10);
      border-radius: 999px;
      font-size:13px;
      display:flex; align-items:center; gap:8px;
    }
    .pill b{font-weight:900; color:#0a3550}
    .sideCard{
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.64));
      box-shadow: var(--shadow2);
      padding:18px 16px;
      animation: rise2 .6s ease both;
    }
    .sideTop{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom:12px;
    }
    .sideTitle{
      margin:0;
      font-size:16px;
      color:#0a3550;
      letter-spacing:-.2px;
    }
    .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius: 999px;
      background: rgba(31,182,211,.12);
      border: 1px solid rgba(31,182,211,.22);
      color:#0b3552;
      font-weight:850;
      font-size:12px;
      white-space:nowrap;
    }
    .badge svg{width:16px;height:16px}
    .quickList{
      margin:0; padding:0; list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .quickItem{
      display:flex; gap:10px; align-items:flex-start;
      padding:12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(23,56,92,.08);
      background: rgba(255,255,255,.70);
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
    }
    .quickItem:hover{
      transform: translateY(-1px);
      border-color: rgba(31,182,211,.25);
      background: rgba(255,255,255,.86);
    }
    .stepIcon{
      width:28px; height:28px; border-radius:12px;
      display:grid; place-items:center;
      background: linear-gradient(135deg, rgba(31,182,211,.18), rgba(10,122,168,.10));
      border:1px solid rgba(31,182,211,.22);
      flex:0 0 auto;
    }
    .quickItem strong{
      font-size:13px; color:#0a3550;
      display:block; margin-top:1px;
    }
    .quickItem span{
      font-size:12.5px; color:var(--muted);
      line-height:1.45;
      display:block; margin-top:4px;
    }

    .section{
      padding: 14px 0 10px;
    }
    .sectionTitleRow{
      display:flex; align-items:flex-end; justify-content:space-between; gap:12px;
      margin: 6px 0 10px;
    }
    h2{
      margin:0;
      font-size:18px;
      letter-spacing:-.2px;
      color:#0a3550;
    }
    .smallNote{
      color:var(--muted);
      font-size:13px;
      line-height:1.4;
    }

    .toc{
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 10px 28px rgba(7,42,74,.07);
      padding:14px 14px;
    }
    .tocGrid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px 14px;
    }
    .toc a{
      text-decoration:none;
      display:flex; align-items:center; justify-content:space-between;
      gap:12px;
      padding:12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(23,56,92,.08);
      background: rgba(255,255,255,.74);
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      min-height: 52px;
    }
    .toc a:hover{
      transform: translateY(-1px);
      border-color: rgba(31,182,211,.24);
      background: rgba(255,255,255,.9);
    }
    .toc a:focus{outline:none; box-shadow: var(--ring);}
    .tocLeft{
      display:flex; gap:10px; align-items:flex-start;
    }
    .tocNum{
      width:28px; height:28px; border-radius:12px;
      display:grid; place-items:center;
      background: rgba(31,182,211,.12);
      border: 1px solid rgba(31,182,211,.22);
      color:#0b3552;
      font-weight:900;
      font-size:12px;
      flex:0 0 auto;
      margin-top:1px;
    }
    .tocText{
      display:flex; flex-direction:column; gap:2px;
    }
    .tocText b{
      font-size:13px; color:#0a3550;
      line-height:1.2;
    }
    .tocText em{
      font-style:normal;
      font-size:12.5px; color:var(--muted); line-height:1.2;
      white-space:nowrap;
      overflow:hidden; text-overflow:ellipsis;
      max-width: 40ch;
    }
    .arrow{
      width:26px; height:26px;
      border-radius: 12px;
      border: 1px solid rgba(23,56,92,.10);
      display:grid; place-items:center;
      background: rgba(255,255,255,.70);
      flex:0 0 auto;
    }

    .contentGrid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }

    .card{
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.74);
      box-shadow: 0 14px 34px rgba(7,42,74,.07);
      padding:16px 16px;
      overflow:hidden;
      position:relative;
    }
    .cardHeader{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .cardHeader h3{
      margin:0;
      font-size:16px;
      color:#0a3550;
      letter-spacing:-.2px;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius: 999px;
      background: rgba(10,122,168,.10);
      border:1px solid rgba(10,122,168,.18);
      color:#0b3552;
      font-weight:850;
      font-size:12px;
      white-space:nowrap;
    }

    .card p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      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:12px 12px;
      border-radius: 14px;
      background: rgba(255,255,255,.70);
      border:1px solid rgba(23,56,92,.08);
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
    }
    .li:hover{
      transform: translateY(-1px);
      border-color: rgba(31,182,211,.24);
      background: rgba(255,255,255,.92);
    }
    .tick{
      width:26px; height:26px; border-radius: 12px;
      display:grid; place-items:center;
      background: rgba(31,182,211,.12);
      border:1px solid rgba(31,182,211,.22);
      flex:0 0 auto;
      margin-top:1px;
    }
    .li b{
      display:block;
      font-size:13px;
      color:#0a3550;
      margin-top:2px;
    }
    .li span{
      display:block;
      font-size:12.7px;
      color:var(--muted);
      line-height:1.5;
      margin-top:5px;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:12px;
      margin-top:10px;
    }
    .stepCard{
      border-radius: 16px;
      border: 1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.72);
      padding:12px 12px;
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      min-height: 126px;
    }
    .stepCard:hover{
      transform: translateY(-2px);
      border-color: rgba(31,182,211,.26);
      background: rgba(255,255,255,.92);
    }
    .stepTop{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:8px;
    }
    .stepNo{
      width:30px; height:30px; border-radius:14px;
      display:grid; place-items:center;
      background: rgba(10,122,168,.10);
      border:1px solid rgba(10,122,168,.18);
      font-weight:950; color:#0b3552;
    }
    .stepCard b{
      display:block;
      color:#0a3550;
      font-size:13.5px;
      letter-spacing:-.1px;
    }
    .stepCard p{
      margin-top:6px;
      font-size:12.8px;
      color:var(--muted);
      line-height:1.55;
    }

    .splitRow{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap:14px;
      align-items:stretch;
      margin-top:14px;
    }
    .imgCard{
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.76);
      box-shadow: 0 14px 34px rgba(7,42,74,.07);
      padding:14px;
      overflow:hidden;
    }
    .imgWrap{
      border-radius: 16px;
      border:1px solid rgba(23,56,92,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.66));
      overflow:hidden;
    }
    .imgWrap img{
      width:100%;
      height:auto;
      display:block;
      object-fit:contain;
      transform: translateZ(0);
      transition: transform .35s ease;
    }
    .imgWrap:hover img{ transform: scale(1.02); }
    .imgCaption{
      margin-top:10px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
    }
    .imgCaption p{
      margin:0; font-size:13px; color:var(--muted); line-height:1.6;
    }
    .capTag{
      white-space:nowrap;
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      background: rgba(47,92,255,.10);
      border:1px solid rgba(47,92,255,.18);
      color:#163c6f;
      font-weight:850;
      flex:0 0 auto;
    }

    .faqGrid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      margin-top:12px;
    }
    details{
      border-radius: 16px;
      border: 1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.74);
      padding: 12px 12px;
      transition: border-color .15s ease, background .15s ease;
    }
    details[open]{
      border-color: rgba(31,182,211,.28);
      background: rgba(255,255,255,.92);
    }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      font-weight:900;
      color:#0a3550;
      font-size:14px;
      letter-spacing:-.1px;
      outline:none;
    }
    summary::-webkit-details-marker{display:none}
    .sumText{
      display:flex; gap:10px; align-items:flex-start;
    }
    .qIcon{
      width:26px; height:26px; border-radius: 12px;
      display:grid; place-items:center;
      background: rgba(31,182,211,.12);
      border:1px solid rgba(31,182,211,.22);
      flex:0 0 auto;
      margin-top:1px;
    }
    .chev{
      width:26px; height:26px; border-radius: 12px;
      border:1px solid rgba(23,56,92,.10);
      display:grid; place-items:center;
      background: rgba(255,255,255,.70);
      flex:0 0 auto;
      transition: transform .2s ease;
    }
    details[open] .chev{ transform: rotate(180deg); }
    .answer{
      margin-top:10px;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.75;
    }
    .answer a{
      color:#0a7aa8;
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    .conclude{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      padding:16px 16px;
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background: radial-gradient(900px 320px at 0% 0%, rgba(31,182,211,.16), transparent 55%), rgba(255,255,255,.72);
      box-shadow: 0 14px 34px rgba(7,42,74,.07);
      margin-top:14px;
    }
    .conclude h2{ font-size:17px; margin-bottom:6px; }
    .conclude p{
      margin:0;
      color:var(--muted);
      font-size:14px;
      line-height:1.7;
      max-width: 70ch;
    }
    .conclude .ctaMini{
      display:flex; flex-direction:column; align-items:flex-end; gap:10px; flex:0 0 auto;
    }
    .inlineLink{
      display:inline-flex; align-items:center; gap:8px;
      padding:10px 12px;
      border-radius: 14px;
      border:1px solid rgba(23,56,92,.14);
      background: rgba(255,255,255,.74);
      text-decoration:none;
      color:#0b3552;
      font-weight:850;
      font-size:13px;
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      white-space:nowrap;
    }
    .inlineLink:hover{
      transform: translateY(-1px);
      border-color: rgba(31,182,211,.26);
      background: rgba(255,255,255,.92);
    }

    .mediaLinks{
      margin-top:10px;
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .relCard{
      flex:1 1 260px;
      border-radius: 16px;
      border:1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.70);
      padding:12px 12px;
      transition: transform .15s ease, border-color .15s ease, background .15s ease;
      min-width: 230px;
    }
    .relCard:hover{
      transform: translateY(-2px);
      border-color: rgba(31,182,211,.26);
      background: rgba(255,255,255,.92);
    }
    .relCard .relTop{
      display:flex; align-items:flex-start; justify-content:space-between; gap:10px;
      margin-bottom:8px;
    }
    .relCard b{ color:#0a3550; font-size:13.5px; line-height:1.35; }
    .relCard span{
      display:block; margin-top:6px;
      color:var(--muted); font-size:12.7px; line-height:1.6;
    }

    footer{
      margin-top:12px;
      background: #f3fbff;
      border-top: 1px solid rgba(23,56,92,.10);
    }
    .footerInner{
      padding:18px 0 14px;
    }
    .footerGrid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .footerCard{
      border-radius: var(--radius);
      border: 1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.74);
      box-shadow: 0 14px 34px rgba(7,42,74,.06);
      padding:16px 16px;
    }
    .footerCard h2{font-size:16px; margin-bottom:10px;}
    .infoRows{
      display:grid; grid-template-columns: 1fr 1fr;
      gap:10px 12px;
    }
    .infoItem{
      border-radius: 14px;
      border:1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.70);
      padding:11px 12px;
    }
    .infoItem b{
      display:block; font-size:12.5px; color:#0a3550; margin-bottom:6px;
      letter-spacing:-.1px;
    }
    .infoItem span{
      display:block; font-size:13px; color:var(--muted); line-height:1.55;
    }
    .qrRow{
      display:flex; gap:12px; align-items:flex-start; justify-content:space-between; flex-wrap:wrap;
    }
    .qrBlock{
      flex: 1 1 220px;
      min-width: 220px;
    }
    .qrTitle{
      margin:0 0 8px;
      color:#0a3550;
      font-weight:950;
      font-size:14px;
    }
    .qrImgWrap{
      border-radius: 16px;
      border:1px solid rgba(23,56,92,.10);
      background: rgba(255,255,255,.76);
      padding:10px;
      display:flex; align-items:center; justify-content:center;
    }
    .qrImgWrap img{
      width:160px; height:auto; display:block;
    }
    .qrHint{
      margin-top:10px;
      color:var(--muted);
      font-size:13px;
      line-height:1.65;
    }
    .footBottom{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      padding-top:12px;
      color:var(--muted);
      font-size:12.8px;
    }
    .footBottom a{
      color:#0a7aa8;
      text-decoration: underline;
      text-underline-offset: 3px;
    }

    @keyframes rise{
      from{opacity:0; transform: translateY(8px)}
      to{opacity:1; transform: translateY(0)}
    }
    @keyframes rise2{
      from{opacity:0; transform: translateY(10px)}
      to{opacity:1; transform: translateY(0)}
    }
    @media (max-width: 980px){
      .heroGrid{ grid-template-columns: 1fr; }
      .steps{ grid-template-columns: repeat(2, 1fr); }
      .splitRow{ grid-template-columns: 1fr; }
      .faqGrid{ grid-template-columns: 1fr; }
      .contentGrid{ grid-template-columns: 1fr; }
      .tocGrid{ grid-template-columns: 1fr; }
      .footerGrid{ grid-template-columns: 1fr; }
      .infoRows{ grid-template-columns: 1fr; }
      .navLinks{ display:none; }
    }
    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .heroCard,.sideCard,.btn,.quickItem,.li,.stepCard,.relCard{transition:none !important; animation:none !important}
    }