:root{
      --bg0:#f7f3ec;
      --bg1:#eef4f7;
      --ink:#1f2a37;
      --mut:#5b6b7c;
      --card:#ffffffcc;
      --card2:#ffffff;
      --line:rgba(21,36,54,.12);
      --shadow: 0 18px 45px rgba(12,28,44,.12);
      --shadow2: 0 10px 28px rgba(12,28,44,.10);
      --brand1:#0f766e;
      --brand2:#2b6cb0;
      --brand3:#b08968;
      --ring: rgba(15,118,110,.28);
      --radius:18px;
      --radius2:14px;
      --container: 1080px;
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", Arial, sans-serif;
      color:var(--ink);
      background:
        radial-gradient(1100px 520px at 8% 0%, rgba(15,118,110,.14), transparent 55%),
        radial-gradient(900px 460px at 85% 10%, rgba(43,108,176,.12), transparent 56%),
        linear-gradient(180deg, var(--bg1), var(--bg0) 60%, #faf7f0 100%);
      overflow-x:hidden;
    }
    .container{
      max-width:var(--container);
      margin:0 auto;
      padding:0 18px;
    }
    header{
      position:sticky;
      top:0;
      z-index:30;
      backdrop-filter: blur(10px);
      background: rgba(247,243,236,.65);
      border-bottom:1px solid rgba(21,36,54,.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: 120px;
    }
    .logo{
      width:42px;height:42px;border-radius:14px;
      display:grid;place-items:center;
      background: linear-gradient(135deg, rgba(15,118,110,.15), rgba(176,137,104,.16));
      border:1px solid rgba(15,118,110,.22);
      box-shadow: 0 10px 26px rgba(15,118,110,.10);
      position:relative;
      overflow:hidden;
      transform: translateZ(0);
    }
    .logo:before{
      content:"";
      position:absolute; inset:-40% -30%;
      background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), transparent 55%);
      transform: rotate(18deg);
      opacity:.6;
    }
    .logo span{
      position:relative;
      font-weight:900;
      letter-spacing:.06em;
      color:#0f3b35;
      font-size:18px;
    }
    .brand strong{
      font-size:15px; letter-spacing:.02em;
    }
    .brand small{
      display:block;
      margin-top:2px;
      color:var(--mut);
      font-size:12px;
      letter-spacing:.01em;
      white-space:nowrap;
    }
    nav{
      display:flex;
      align-items:center;
      gap:12px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex; gap:14px; align-items:center;
    }
    .nav-links a{
      color:#243246;
      text-decoration:none;
      font-size:13px;
      padding:8px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: background .2s ease, border-color .2s ease, transform .2s ease;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(255,255,255,.62);
      border-color: rgba(21,36,54,.12);
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex; gap:10px; align-items:center;
    }
    .btn{
      appearance:none;
      border:1px solid rgba(21,36,54,.14);
      background: rgba(255,255,255,.66);
      color:#1f2a37;
      border-radius:14px;
      padding:10px 12px;
      cursor:pointer;
      font-weight:650;
      font-size:13px;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      display:inline-flex; align-items:center; gap:8px;
      user-select:none;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(12,28,44,.10);
      border-color: rgba(21,36,54,.20);
      background: rgba(255,255,255,.78);
    }
    .btn:focus{
      outline:none;
      box-shadow: 0 0 0 4px var(--ring), 0 14px 30px rgba(12,28,44,.10);
    }
    .btn.primary{
      border-color: rgba(15,118,110,.35);
      background: linear-gradient(135deg, rgba(15,118,110,.16), rgba(43,108,176,.10));
    }
    .btn.primary .dot{
      width:9px;height:9px;border-radius:50%;
      background: linear-gradient(180deg, var(--brand1), var(--brand2));
      box-shadow: 0 0 0 4px rgba(15,118,110,.14);
    }
    .menu-btn{
      display:none;
    }
    .mobile-panel{
      display:none;
      border-top:1px solid rgba(21,36,54,.08);
      padding:10px 0 14px;
    }
    .mobile-panel .mobile-links{
      display:flex; flex-direction:column; gap:10px;
    }
    .mobile-panel a{
      text-decoration:none;
      color:#1f2a37;
      background: rgba(255,255,255,.62);
      border:1px solid rgba(21,36,54,.12);
      padding:12px 12px;
      border-radius:14px;
      font-weight:650;
      font-size:13px;
      transition: transform .18s ease;
    }
    .mobile-panel a:hover{transform: translateY(-1px)}
    .hero{
      padding:30px 0 12px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-card{
      border-radius: var(--radius);
      border:1px solid rgba(21,36,54,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.62), rgba(255,255,255,.38));
      box-shadow: var(--shadow2);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-card:after{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(500px 220px at 10% 10%, rgba(15,118,110,.18), transparent 60%),
        radial-gradient(420px 200px at 80% 30%, rgba(176,137,104,.18), transparent 62%);
      pointer-events:none;
      opacity:.9;
    }
    .hero-card > *{position:relative}
    .kicker{
      display:flex; align-items:center; gap:10px; flex-wrap:wrap;
      margin-bottom:10px;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 12px;
      border-radius:999px;
      border:1px solid rgba(21,36,54,.12);
      background: rgba(255,255,255,.64);
      color:#2a3a4d;
      font-weight:700;
      font-size:12px;
    }
    .pill i{
      width:10px;height:10px;border-radius:50%;
      background: linear-gradient(180deg, var(--brand3), var(--brand2));
      box-shadow: 0 0 0 4px rgba(176,137,104,.14);
      display:inline-block;
    }
    h1{
      margin:0;
      font-size:28px;
      letter-spacing:-.02em;
      line-height:1.25;
    }
    .lead{
      margin:12px 0 0;
      color: var(--mut);
      font-size:14px;
      line-height:1.8;
      max-width:62ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-top:16px;
      align-items:center;
    }
    .anchor-btn{
      text-decoration:none;
      border-radius:16px;
      padding:11px 14px;
      border:1px solid rgba(21,36,54,.14);
      background: rgba(255,255,255,.66);
      font-weight:750;
      font-size:13px;
      color:#1f2a37;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
      display:inline-flex; gap:10px; align-items:center;
    }
    .anchor-btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 16px 36px rgba(12,28,44,.12);
      background: rgba(255,255,255,.8);
    }
    .anchor-btn .arr{
      width:26px;height:26px;border-radius:10px;
      display:grid;place-items:center;
      border:1px solid rgba(15,118,110,.25);
      background: linear-gradient(135deg, rgba(15,118,110,.10), rgba(43,108,176,.08));
      color: #0f3b35;
      font-weight:900;
    }
    .trust{
      margin-top:10px;
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .trust span{
      color:#2b3a4c;
      font-size:12.5px;
      padding:8px 10px;
      border-radius:14px;
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.52);
    }
    .side-card{
      border-radius: var(--radius);
      border:1px solid rgba(21,36,54,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.55), rgba(255,255,255,.35));
      box-shadow: var(--shadow2);
      padding:16px;
      display:flex;
      flex-direction:column;
      gap:12px;
      overflow:hidden;
      position:relative;
    }
    .side-card:before{
      content:"";
      position:absolute; inset:-20%;
      background:
        radial-gradient(520px 300px at 60% 0%, rgba(43,108,176,.18), transparent 60%),
        radial-gradient(420px 250px at 20% 80%, rgba(15,118,110,.16), transparent 62%);
      pointer-events:none;
    }
    .side-card > *{position:relative}
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .side-title h2{
      margin:0;
      font-size:14px;
      letter-spacing:.01em;
    }
    .badge{
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(15,118,110,.28);
      background: rgba(15,118,110,.10);
      color:#0f3b35;
      font-weight:850;
      font-size:12px;
      white-space:nowrap;
    }
    .toc{
      display:grid;
      gap:10px;
    }
    .toc a{
      text-decoration:none;
      color:#223244;
      border-radius:16px;
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.58);
      padding:12px 12px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .toc a:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.8);
      border-color: rgba(21,36,54,.18);
    }
    .toc a .left{
      display:flex; align-items:center; gap:10px; min-width:0;
    }
    .toc a .num{
      width:28px;height:28px;border-radius:12px;
      display:grid;place-items:center;
      border:1px solid rgba(15,118,110,.22);
      background: linear-gradient(135deg, rgba(15,118,110,.10), rgba(176,137,104,.10));
      color:#0f3b35;
      font-weight:900;
      flex:0 0 auto;
    }
    .toc a .txt{
      font-weight:800;
      font-size:13px;
      overflow:hidden;
      text-overflow:ellipsis;
      white-space:nowrap;
    }
    .toc a .go{
      width:26px;height:26px;border-radius:10px;
      display:grid;place-items:center;
      border:1px solid rgba(21,36,54,.12);
      background: rgba(255,255,255,.55);
      color:#2b3a4c;
      flex:0 0 auto;
    }
    main{padding:18px 0 24px}
    section.block{
      margin:14px 0;
      padding:18px 0;
    }
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom:12px;
    }
    .section-head h2{
      margin:0;
      font-size:18px;
      letter-spacing:-.01em;
    }
    .section-head p{
      margin:0;
      color:var(--mut);
      font-size:13px;
      line-height:1.6;
      max-width:54ch;
    }
    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:stretch;
    }
    .card{
      border-radius: var(--radius2);
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.60);
      padding:14px;
      box-shadow: 0 14px 36px rgba(12,28,44,.06);
      transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease;
      position:relative;
      overflow:hidden;
    }
    .card:after{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(320px 120px at 15% 0%, rgba(15,118,110,.12), transparent 55%);
      opacity:.9;
      pointer-events:none;
    }
    .card > *{position:relative}
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 22px 58px rgba(12,28,44,.10);
      background: rgba(255,255,255,.74);
      border-color: rgba(21,36,54,.18);
    }
    .card h3{
      margin:0 0 8px;
      font-size:14px;
      letter-spacing:.01em;
    }
    .card p{
      margin:0;
      color: var(--mut);
      font-size:13px;
      line-height:1.75;
    }
    .steps{
      display:grid;
      gap:12px;
    }
    .step{
      border-radius: var(--radius2);
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.60);
      padding:14px;
      display:flex;
      gap:12px;
      align-items:flex-start;
      transition: transform .22s ease, background .22s ease, border-color .22s ease;
    }
    .step:hover{
      transform: translateY(-2px);
      background: rgba(255,255,255,.78);
      border-color: rgba(21,36,54,.18);
    }
    .step .k{
      width:34px; height:34px;
      border-radius:14px;
      display:grid; place-items:center;
      background: linear-gradient(135deg, rgba(15,118,110,.14), rgba(176,137,104,.12));
      border:1px solid rgba(15,118,110,.22);
      color:#0f3b35;
      font-weight:950;
      flex:0 0 auto;
    }
    .step .c strong{
      display:block;
      font-size:13.5px;
      margin-bottom:4px;
      letter-spacing:.01em;
    }
    .step .c span{
      display:block;
      color:var(--mut);
      font-size:13px;
      line-height:1.7;
    }
    .inline-links{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:12px;
    }
    .inline-links a{
      text-decoration:none;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(21,36,54,.12);
      background: rgba(255,255,255,.55);
      color:#213044;
      font-weight:750;
      font-size:13px;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .inline-links a:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.82);
      border-color: rgba(21,36,54,.18);
    }
    .case{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .case figure{
      margin:0;
      border-radius: var(--radius2);
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.55);
      overflow:hidden;
    }
    .case figure .imgwrap{
      width:100%;
      padding:10px;
    }
    .case img{
      width:100%;
      max-width:100%;
      height:auto;
      display:block;
      border-radius:12px;
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.6);
    }
    figcaption{
      padding:0 14px 14px;
      color:var(--mut);
      font-size:12.5px;
      line-height:1.6;
    }
    .case .detail{
      border-radius: var(--radius2);
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.60);
      padding:14px;
    }
    .case .detail h3{margin:0 0 8px; font-size:14px}
    .meta-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .meta-list li{
      display:flex; gap:10px; align-items:flex-start;
      color:var(--mut);
      font-size:13px;
      line-height:1.65;
    }
    .tick{
      width:18px; height:18px; border-radius:8px;
      background: rgba(15,118,110,.12);
      border:1px solid rgba(15,118,110,.25);
      color:#0f3b35;
      display:grid; place-items:center;
      flex:0 0 auto;
      font-weight:950;
      margin-top:2px;
    }
    .faq{
      display:grid;
      gap:10px;
    }
    details.faq-item{
      border-radius: var(--radius2);
      border:1px solid rgba(21,36,54,.10);
      background: rgba(255,255,255,.60);
      overflow:hidden;
      transition: border-color .2s ease, background .2s ease;
    }
    details.faq-item[open]{
      background: rgba(255,255,255,.78);
      border-color: rgba(21,36,54,.18);
    }
    details.faq-item summary{
      cursor:pointer;
      list-style:none;
      padding:14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      font-weight:850;
      font-size:13.5px;
      color:#1f2a37;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .sum-right{
      display:flex; align-items:center; gap:10px; flex:0 0 auto;
      color:var(--mut);
      font-weight:800;
      font-size:12px;
    }
    .chev{
      width:28px;height:28px;border-radius:12px;
      border:1px solid rgba(21,36,54,.12);
      background: rgba(255,255,255,.55);
      display:grid; place-items:center;
      transition: transform .2s ease;
    }
    details[open] .chev{transform: rotate(180deg)}
    details.faq-item .ans{
      padding:0 14px 14px;
      color:var(--mut);
      font-size:13px;
      line-height:1.8;
    }
    .conclusion{
      border-radius: var(--radius);
      border:1px solid rgba(21,36,54,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.62), rgba(255,255,255,.42));
      padding:18px;
      box-shadow: 0 18px 45px rgba(12,28,44,.08);
      position:relative;
      overflow:hidden;
    }
    .conclusion:after{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(520px 220px at 10% 10%, rgba(15,118,110,.18), transparent 58%),
        radial-gradient(520px 220px at 90% 50%, rgba(43,108,176,.16), transparent 60%);
      pointer-events:none;
      opacity:.85;
    }
    .conclusion > *{position:relative}
    .conclusion h2{
      margin:0 0 8px;
      font-size:18px;
      letter-spacing:-.01em;
    }
    .conclusion p{
      margin:0;
      color:var(--mut);
      font-size:13.5px;
      line-height:1.85;
      max-width:78ch;
    }
    .footer{
      margin-top:8px;
      background: #eef3f7;
      border-top:1px solid rgba(21,36,54,.10);
      color:#1f2a37;
    }
    .footer .foot-wrap{
      padding:16px 0 18px;
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .foot-brand{
      display:flex; flex-direction:column; gap:10px;
    }
    .foot-brand .row{
      display:flex; gap:10px; align-items:center;
    }
    .foot-brand .row .logo{
      width:38px;height:38px;border-radius:14px;
    }
    .foot-brand p{
      margin:0;
      color:#45566c;
      font-size:13px;
      line-height:1.8;
      max-width:70ch;
    }
    .foot-links{
      display:flex; flex-direction:column; gap:10px; align-items:flex-start;
    }
    .foot-links strong{
      font-size:13.5px;
    }
    .foot-links .links{
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .foot-links a{
      text-decoration:none;
      font-size:13px;
      font-weight:750;
      color:#223244;
      background: rgba(255,255,255,.55);
      border:1px solid rgba(21,36,54,.12);
      padding:10px 12px;
      border-radius:14px;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .foot-links a:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.85);
      border-color: rgba(21,36,54,.18);
    }
    .copyright{
      border-top:1px solid rgba(21,36,54,.10);
      padding:12px 0;
      color:#516273;
      font-size:12.5px;
      text-align:center;
    }
    .fade-in{
      opacity:0;
      transform: translateY(8px);
      animation: fadeUp .6s ease forwards;
    }
    @keyframes fadeUp{
      to{opacity:1; transform: translateY(0)}
    }
    .reveal-delay-1{animation-delay:.08s}
    .reveal-delay-2{animation-delay:.16s}
    .reveal-delay-3{animation-delay:.24s}
    @media (max-width: 920px){
      .hero-grid{grid-template-columns:1fr; }
      .grid-2{grid-template-columns:1fr}
      .case{grid-template-columns:1fr}
      .footer .foot-wrap{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex}
      .mobile-panel{display:block}
      nav{gap:10px}
    }