:root{
      --bg0:#ffffff;
      --bg1:#fbfbfc;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5b6677;
      --line:rgba(17,24,39,.12);
      --shadow:0 14px 38px rgba(15,23,42,.08);
      --shadow2:0 10px 24px rgba(15,23,42,.08);
      --brand1:#1d4ed8;
      --brand2:#7c3aed;
      --brand3:#06b6d4;
      --cta1:#0f2a66;
      --cta2:#1d4ed8;
      --ring:rgba(29,78,216,.25);
      --radius:18px;
      --radius2:14px;
      --container:1120px;
    }

    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans CJK SC", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(900px 420px at 20% -10%, rgba(29,78,216,.14), rgba(255,255,255,0) 60%),
        radial-gradient(720px 360px at 85% 0%, rgba(124,58,237,.12), rgba(255,255,255,0) 58%),
        radial-gradient(760px 400px at 60% 10%, rgba(6,182,212,.10), rgba(255,255,255,0) 52%),
        linear-gradient(180deg, var(--bg1), var(--bg0) 55%);
      overflow-x:hidden;
    }

    a{color:inherit; text-decoration:none}
    .container{
      width:100%;
      max-width:var(--container);
      margin:0 auto;
      padding:0 18px;
    }

    .topbar{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.72);
      backdrop-filter: blur(10px);
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .topbar-inner{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
    }

    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width:160px;
    }
    .logo{
      width:42px; height:42px;
      border-radius:14px;
      background:
        radial-gradient(14px 14px at 20% 20%, rgba(255,255,255,.95), rgba(255,255,255,0) 55%),
        conic-gradient(from 220deg, rgba(29,78,216,.95), rgba(124,58,237,.92), rgba(6,182,212,.95), rgba(29,78,216,.95));
      box-shadow:0 10px 24px rgba(29,78,216,.22);
      position:relative;
      overflow:hidden;
      display:flex;
      align-items:center;
      justify-content:center;
      color:#061026;
      font-weight:900;
      letter-spacing:.5px;
    }
    .logo::after{
      content:"";
      position:absolute; inset:-40% -60%;
      background:linear-gradient(115deg, rgba(255,255,255,0) 35%, rgba(255,255,255,.65) 52%, rgba(255,255,255,0) 66%);
      transform:rotate(12deg) translateX(-24%);
      animation:shine 5.5s ease-in-out infinite;
      opacity:.65;
      pointer-events:none;
    }
    @keyframes shine{
      0%{transform:rotate(12deg) translateX(-32%); opacity:.15}
      35%{opacity:.85}
      60%{transform:rotate(12deg) translateX(38%); opacity:.65}
      100%{transform:rotate(12deg) translateX(38%); opacity:.15}
    }
    .brand-title{
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-title strong{
      font-size:14px;
      letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px;
      color:var(--muted);
    }

    nav.desktop{
      display:flex;
      align-items:center;
      gap:16px;
      flex:1;
      justify-content:flex-end;
    }
    .nav-link{
      font-size:13px;
      color:#334155;
      padding:10px 10px;
      border-radius:12px;
      transition: background .2s ease, transform .2s ease, color .2s ease;
      position:relative;
      white-space:nowrap;
    }
    .nav-link:hover{
      background:rgba(29,78,216,.08);
      color:#0f2a66;
      transform: translateY(-1px);
    }

    .actions{
      display:flex;
      align-items:center;
      gap:10px;
    }

    .btn{
      border:1px solid rgba(17,24,39,.14);
      background:rgba(255,255,255,.7);
      color:#0f172a;
      padding:10px 14px;
      border-radius:14px;
      font-weight:700;
      font-size:13px;
      display:inline-flex;
      align-items:center;
      gap:8px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
      user-select:none;
      -webkit-tap-highlight-color: transparent;
    }
    .btn:active{transform: translateY(1px)}
    .btn:focus-visible{outline:3px solid var(--ring); outline-offset:2px}
    .btn-primary{
      border-color:rgba(29,78,216,.25);
      background:linear-gradient(135deg, rgba(29,78,216,.95), rgba(124,58,237,.88));
      color:#fff;
      box-shadow:0 14px 28px rgba(29,78,216,.18);
    }
    .btn-primary:hover{box-shadow:0 18px 36px rgba(29,78,216,.25)}
    .btn-ghost{
      border-color:rgba(17,24,39,.10);
      background:rgba(255,255,255,.65);
    }

    .menu-btn{
      display:none;
    }

    .mobile-panel{
      display:none;
      padding:0 0 14px;
    }
    .mobile-panel.open{display:block}
    .mobile-links{
      display:flex;
      flex-direction:column;
      gap:8px;
      padding:10px 0 6px;
    }
    .mobile-links .nav-link{
      padding:12px 12px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.78);
    }

    main{padding:22px 0 24px}

    .hero{
      margin-top:18px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:18px;
      align-items:stretch;
    }
    .hero-card{
      background:
        radial-gradient(900px 320px at 0% 0%, rgba(29,78,216,.18), rgba(255,255,255,0) 52%),
        radial-gradient(720px 300px at 100% 10%, rgba(124,58,237,.14), rgba(255,255,255,0) 56%),
        linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.68));
      border:1px solid rgba(17,24,39,.10);
      border-radius:var(--radius);
      box-shadow:var(--shadow2);
      padding:22px 20px;
      position:relative;
      overflow:hidden;
    }
    .hero-card::before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(115deg, rgba(29,78,216,.22), rgba(124,58,237,.18), rgba(6,182,212,.16));
      opacity:.35;
      pointer-events:none;
      mask-image: radial-gradient(600px 240px at 30% 15%, black 20%, rgba(0,0,0,0) 62%);
    }

    .kicker{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      position:relative;
      z-index:1;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.10);
      color:#0f2a66;
      font-weight:800;
      font-size:12px;
    }
    .pill i{
      width:10px; height:10px;
      border-radius:50%;
      background: conic-gradient(from 180deg, var(--brand2), var(--brand1), var(--brand3), var(--brand2));
      display:inline-block;
      box-shadow:0 0 0 3px rgba(29,78,216,.10);
    }

    h1{
      position:relative;
      z-index:1;
      margin:14px 0 8px;
      font-size:34px;
      line-height:1.12;
      letter-spacing:-.6px;
    }
    .lead{
      position:relative;
      z-index:1;
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.8;
      max-width:62ch;
    }

    .hero-cta{
      position:relative;
      z-index:1;
      margin-top:16px;
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
    }

    .trust-row{
      margin-top:16px;
      position:relative;
      z-index:1;
      display:flex;
      flex-wrap:wrap;
      gap:10px;
    }
    .trust-item{
      flex:1;
      min-width:170px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.66);
      border-radius:16px;
      padding:10px 12px;
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .trust-ico{
      width:34px; height:34px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(29,78,216,.18), rgba(124,58,237,.14));
      border:1px solid rgba(29,78,216,.18);
      display:flex;
      align-items:center;
      justify-content:center;
      flex:0 0 auto;
      color:#0f2a66;
    }
    .trust-item strong{
      display:block;
      font-size:13px;
      margin-top:1px;
    }
    .trust-item span{
      display:block;
      font-size:12px;
      color:var(--muted);
      margin-top:2px;
      line-height:1.5;
    }

    .side-card{
      background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.68));
      border:1px solid rgba(17,24,39,.10);
      border-radius:var(--radius);
      padding:18px 16px;
      box-shadow:var(--shadow2);
      display:flex;
      flex-direction:column;
      gap:12px;
      overflow:hidden;
      position:relative;
    }
    .side-card::after{
      content:"";
      position:absolute;
      width:220px; height:220px;
      right:-120px; top:-120px;
      background: radial-gradient(circle at 30% 30%, rgba(6,182,212,.22), rgba(6,182,212,0) 60%),
                  radial-gradient(circle at 70% 60%, rgba(124,58,237,.18), rgba(124,58,237,0) 62%);
      pointer-events:none;
    }
    .side-title{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      position:relative;
      z-index:1;
    }
    .side-title h2{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .badge{
      padding:7px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.7);
      color:#0f2a66;
      white-space:nowrap;
    }
    .estimate{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .estimate-item{
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.62);
      border-radius:16px;
      padding:12px 12px;
      display:flex;
      gap:12px;
      align-items:flex-start;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .estimate-item:hover{
      transform: translateY(-2px);
      border-color: rgba(29,78,216,.22);
      box-shadow:0 16px 30px rgba(29,78,216,.10);
    }
    .estimate-num{
      width:40px; height:40px;
      border-radius:14px;
      background:conic-gradient(from 180deg, rgba(29,78,216,.18), rgba(124,58,237,.16), rgba(6,182,212,.18), rgba(29,78,216,.18));
      border:1px solid rgba(17,24,39,.10);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:900;
      color:#0f2a66;
      flex:0 0 auto;
    }
    .estimate-item strong{
      display:block;
      font-size:13px;
      margin-top:2px;
    }
    .estimate-item span{
      display:block;
      font-size:12px;
      color:var(--muted);
      line-height:1.55;
      margin-top:3px;
    }

    section{
      margin-top:16px;
    }

    .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:-.2px;
    }
    .section-title p{
      margin:0;
      color:var(--muted);
      font-size:13px;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
    }
    .card{
      background:rgba(255,255,255,.78);
      border:1px solid rgba(17,24,39,.10);
      border-radius:var(--radius2);
      padding:16px 14px;
      box-shadow: 0 10px 22px rgba(15,23,42,.06);
      transition: transform .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      border-color: rgba(29,78,216,.22);
    }
    .card h3{
      margin:0 0 8px;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }
    .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 10px;
      border-radius:14px;
      border:1px dashed rgba(17,24,39,.14);
      background:rgba(255,255,255,.55);
    }
    .check{
      width:22px; height:22px;
      border-radius:8px;
      background:linear-gradient(135deg, rgba(29,78,216,.18), rgba(124,58,237,.14));
      border:1px solid rgba(29,78,216,.20);
      display:flex;
      align-items:center;
      justify-content:center;
      color:#0f2a66;
      flex:0 0 auto;
      margin-top:1px;
      font-weight:900;
      font-size:12px;
    }
    .li strong{
      display:block;
      font-size:13px;
      margin-top:1px;
    }
    .li span{
      display:block;
      color:var(--muted);
      font-size:12px;
      margin-top:3px;
      line-height:1.6;
    }

    .toc{
      background:linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.72));
      border:1px solid rgba(17,24,39,.10);
      border-radius:var(--radius2);
      padding:14px 14px;
      box-shadow: 0 10px 22px rgba(15,23,42,.06);
    }
    .toc-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .toc a{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:12px;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.62);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }
    .toc a:hover{
      transform: translateY(-2px);
      border-color: rgba(29,78,216,.22);
      background:rgba(255,255,255,.78);
    }
    .toc a strong{
      font-size:13px;
      letter-spacing:-.1px;
    }
    .toc a span{
      font-size:12px;
      color:var(--muted);
      white-space:nowrap;
    }

    .steps{
      display:grid;
      grid-template-columns: 1fr;
      gap:12px;
    }
    .step{
      border-radius:var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.72);
      padding:14px 14px;
      display:flex;
      gap:12px;
      align-items:flex-start;
      transition: transform .2s ease, border-color .2s ease;
    }
    .step:hover{
      transform: translateY(-2px);
      border-color: rgba(29,78,216,.22);
    }
    .step .num{
      width:42px; height:42px;
      border-radius:16px;
      background:conic-gradient(from 180deg, rgba(29,78,216,.26), rgba(124,58,237,.18), rgba(6,182,212,.22), rgba(29,78,216,.26));
      border:1px solid rgba(17,24,39,.10);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:950;
      color:#0f2a66;
      flex:0 0 auto;
    }
    .step h3{
      margin:2px 0 6px;
      font-size:15px;
    }
    .step p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.75;
    }

    .faq{
      background:linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.70));
      border:1px solid rgba(17,24,39,.10);
      border-radius:var(--radius);
      padding:14px 14px;
      box-shadow: 0 10px 22px rgba(15,23,42,.06);
    }
    details{
      border-top:1px solid rgba(17,24,39,.08);
      padding:12px 0;
    }
    details:first-of-type{border-top:none}
    summary{
      list-style:none;
      cursor:pointer;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      font-weight:900;
      font-size:14px;
      letter-spacing:-.15px;
      outline:none;
    }
    summary::-webkit-details-marker{display:none}
    .caret{
      width:28px; height:28px;
      border-radius:12px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.6);
      display:flex;
      align-items:center;
      justify-content:center;
      color:#0f2a66;
      flex:0 0 auto;
      transition: transform .2s ease;
      margin-top:-2px;
    }
    details[open] .caret{transform: rotate(180deg)}
    .faq p{
      margin:10px 0 0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
    }

    .inline-quote{
      border-left:4px solid rgba(29,78,216,.35);
      padding:12px 12px;
      background:rgba(255,255,255,.62);
      border-radius:14px;
      color:#0f2a66;
      font-weight:800;
      letter-spacing:-.1px;
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .inline-quote span{
      color:var(--muted);
      font-weight:600;
      line-height:1.7;
    }

    .gallery{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:10px;
      margin-top:10px;
    }
    .imgbox{
      border-radius:16px;
      overflow:hidden;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.7);
      box-shadow: 0 10px 22px rgba(15,23,42,.06);
      position:relative;
    }
    .imgbox::after{
      content:"";
      position:absolute; inset:0;
      background: linear-gradient(110deg, rgba(255,255,255,.0) 40%, rgba(255,255,255,.55) 52%, rgba(255,255,255,0) 66%);
      transform: translateX(-60%);
      opacity:.18;
      transition: transform .5s ease, opacity .5s ease;
      pointer-events:none;
    }
    .imgbox:hover::after{
      transform: translateX(60%);
      opacity:.35;
    }
    img{
      width:100%;
      height:auto;
      display:block;
      object-fit:cover;
      transform: translateZ(0);
    }
    .imgcap{
      position:absolute;
      left:10px; right:10px; bottom:10px;
      background:rgba(255,255,255,.78);
      backdrop-filter: blur(8px);
      border:1px solid rgba(17,24,39,.10);
      border-radius:14px;
      padding:8px 10px;
      color:#0f172a;
      font-size:12px;
      font-weight:800;
      line-height:1.2;
      pointer-events:none;
    }

    footer{
      margin-top:18px;
      background: linear-gradient(180deg, rgba(255,255,255,.65), rgba(255,255,255,.92));
      border-top:1px solid rgba(17,24,39,.10);
      padding:18px 0 22px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap:14px;
      align-items:start;
    }
    .foot-card{
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.78);
      border-radius:var(--radius);
      padding:14px 14px;
      box-shadow: 0 10px 22px rgba(15,23,42,.06);
    }
    .foot-card h2{
      margin:0 0 10px;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .kv{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .kv .row{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding:10px 10px;
      border-radius:14px;
      border:1px dashed rgba(17,24,39,.14);
      background:rgba(255,255,255,.55);
    }
    .ico{
      width:30px; height:30px;
      border-radius:12px;
      background:linear-gradient(135deg, rgba(29,78,216,.18), rgba(124,58,237,.14));
      border:1px solid rgba(29,78,216,.18);
      display:flex;
      align-items:center;
      justify-content:center;
      color:#0f2a66;
      flex:0 0 auto;
      font-weight:900;
      font-size:13px;
      margin-top:1px;
    }
    .row strong{
      display:block;
      font-size:13px;
    }
    .row span{
      display:block;
      font-size:12px;
      color:var(--muted);
      margin-top:3px;
      line-height:1.6;
      word-break:break-word;
    }

    .contact-row{
      display:flex;
      gap:12px;
      align-items:flex-start;
      flex-wrap:wrap;
      margin-top:10px;
    }
    .qr{
      flex:0 0 auto;
      width:128px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.65);
      padding:8px;
    }
    .qr img{border-radius:12px; width:100%; height:auto}
    .foot-links{
      display:flex;
      flex-direction:column;
      gap:10px;
      flex:1;
      min-width:220px;
    }
    .foot-links a{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background:rgba(255,255,255,.62);
      transition: transform .2s ease, border-color .2s ease, background .2s ease;
    }
    .foot-links a:hover{
      transform: translateY(-2px);
      border-color: rgba(29,78,216,.22);
      background:rgba(255,255,255,.78);
    }
    .foot-links a strong{font-size:13px}
    .foot-links a span{font-size:12px; color:var(--muted)}
    .copyright{
      margin-top:12px;
      color:var(--muted);
      font-size:12px;
      text-align:center;
    }

    .sr-only{
      position:absolute;
      width:1px; height:1px;
      padding:0; margin:-1px;
      overflow:hidden;
      clip:rect(0,0,0,0);
      white-space:nowrap;
      border:0;
    }

    @media (max-width: 980px){
      h1{font-size:30px}
      .hero-grid{grid-template-columns: 1fr}
      nav.desktop{display:none}
      .menu-btn{display:inline-flex}
      .mobile-panel{display:none}
      .mobile-panel.open{display:block}
      .gallery{grid-template-columns: repeat(2, 1fr)}
      .footer-grid{grid-template-columns: 1fr}
    }
    @media (max-width: 520px){
      .topbar-inner{padding:10px 0}
      .brand-title span{display:none}
      .hero-card{padding:18px 14px}
      .side-card{padding:16px 12px}
      h1{font-size:26px}
      .trust-item{min-width:150px}
      .gallery{grid-template-columns: 1fr 1fr}
      .qr{width:120px}
    }

    @media (prefers-reduced-motion: reduce){
      .logo::after{animation:none}
      .btn, .card, .estimate-item, .toc a, .step, .foot-links a{transition:none}
      .logo::after{display:none}
    }