:root{
      --bg0:#ffffff;
      --bg1:#fbfaf8;
      --text:#1b1f24;
      --muted:#5b6673;
      --line:rgba(17,24,39,.10);
      --card:#ffffff;
      --shadow:0 10px 30px rgba(16,24,40,.08);
      --shadow2:0 8px 18px rgba(16,24,40,.10);
      --brand:#ff3b7a;
      --brand2:#7c3aed;
      --brand3:#1d4ed8;
      --ok:#0ea5e9;
      --warn:#f59e0b;
      --radius:18px;
      --radius2:14px;
      --container:1120px;
      --gap:18px;
      --focus:0 0 0 4px rgba(255,59,122,.18);
      --btnText:#0b1020;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
        "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC", Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 700px at 10% -10%, rgba(255,59,122,.12), transparent 55%),
        radial-gradient(1000px 620px at 90% 0%, rgba(124,58,237,.10), transparent 55%),
        radial-gradient(900px 520px at 50% 40%, rgba(29,78,216,.08), transparent 60%),
        linear-gradient(180deg, var(--bg1), #fff 42%, #fff);
    }

    a{color:inherit; text-decoration:none}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }

    .skip-link{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
    }
    .skip-link: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:saturate(160%) blur(10px);
      background:rgba(255,255,255,.72);
      border-bottom:1px solid rgba(17,24,39,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between;
      padding:12px 0;
      gap:16px;
    }
    .brand{
      display:flex; align-items:center; gap:10px; min-width:180px;
    }
    .brand img{display:block; width:40px; height:40px; border-radius:12px; object-fit:contain}
    .brand-title{
      display:flex; flex-direction:column; line-height:1.05;
    }
    .brand-title strong{
      font-size:14px; letter-spacing:.2px;
    }
    .brand-title span{
      font-size:12px; color:var(--muted);
    }

    nav{display:flex; align-items:center; gap:14px; flex-wrap:nowrap}
    .nav-links{
      display:flex; align-items:center; gap:10px;
      padding:0; margin:0; list-style:none;
    }
    .nav-links a{
      display:inline-flex; align-items:center;
      padding:10px 10px;
      border-radius:12px;
      color:#2b3440;
      font-size:13px;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(255,59,122,.10);
    }

    .nav-cta{
      display:flex; align-items:center; gap:10px; flex-wrap:nowrap;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:#fff;
      color:#0b1220;
      font-weight:650;
      font-size:13px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease, background .15s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:focus{outline:none; box-shadow:var(--focus)}
    .btn:hover{transform: translateY(-1px); box-shadow:0 10px 24px rgba(16,24,40,.10); border-color:rgba(255,59,122,.35)}
    .btn-primary{
      border-color: rgba(255,59,122,.30);
      background: linear-gradient(135deg, rgba(255,59,122,.98), rgba(124,58,237,.92));
      color:#fff;
      box-shadow:0 10px 28px rgba(255,59,122,.22);
    }
    .btn-primary:hover{box-shadow:0 14px 34px rgba(255,59,122,.26)}
    .btn-ghost{
      background: rgba(255,255,255,.85);
    }

    .burger{
      display:none;
      width:44px; height:44px; border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:#fff;
      align-items:center; justify-content:center;
      cursor:pointer;
      transition: box-shadow .15s ease, transform .15s ease;
    }
    .burger:hover{transform:translateY(-1px); box-shadow:0 10px 24px rgba(16,24,40,.10)}
    .burger:focus{outline:none; box-shadow:var(--focus)}
    .burger svg{display:block}

    .mobile-panel{
      display:none;
      border-top:1px solid rgba(17,24,39,.08);
      padding:12px 0 16px;
    }
    .mobile-links{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .mobile-links a{
      flex:1 1 calc(50% - 10px);
      min-width:150px;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      font-weight:650;
      font-size:13px;
    }
    .mobile-links a:hover{border-color:rgba(255,59,122,.35); background:rgba(255,59,122,.06)}

    main{padding:22px 0 0}

    .hero{
      padding:26px 0 12px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.12fr .88fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-card{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:
        linear-gradient(135deg, rgba(255,59,122,.10), rgba(124,58,237,.08) 40%, rgba(29,78,216,.07)),
        radial-gradient(900px 380px at 25% 0%, rgba(255,255,255,.85), rgba(255,255,255,.55));
      box-shadow: var(--shadow);
      padding:24px;
      position:relative;
      overflow:hidden;
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        radial-gradient(500px 250px at 20% 10%, rgba(255,59,122,.28), transparent 60%),
        radial-gradient(420px 220px at 80% 20%, rgba(124,58,237,.22), transparent 62%),
        radial-gradient(420px 240px at 50% 85%, rgba(29,78,216,.18), transparent 62%);
      opacity:.55;
      pointer-events:none;
    }
    .hero-inner{position:relative; z-index:1}

    .kicker{
      display:flex; align-items:center; gap:10px;
      margin-bottom:12px;
      flex-wrap:wrap;
    }
    .pill{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px;
      border-radius:999px;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.08);
      font-size:12px; color:#2b3440;
    }
    .dot{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow:0 0 0 4px rgba(255,59,122,.16);
    }
    .hero h1{
      margin:0 0 10px;
      font-size:34px;
      line-height:1.15;
      letter-spacing:-.6px;
    }
    .lead{
      margin:0 0 16px;
      color:var(--muted);
      font-size:15px;
      line-height:1.7;
      max-width:62ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-bottom:18px;
    }
    .micro{
      display:flex; gap:12px; flex-wrap:wrap;
      padding-top:6px;
    }
    .micro-item{
      display:flex; align-items:flex-start; gap:10px;
      min-width:210px;
      padding:12px 12px;
      border-radius:16px;
      background: rgba(255,255,255,.70);
      border:1px solid rgba(17,24,39,.08);
    }
    .micro-icon{
      width:34px; height:34px;
      border-radius:12px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(255,59,122,.10);
      border:1px solid rgba(255,59,122,.20);
      color: #b0103f;
      flex:0 0 auto;
    }
    .micro-item strong{display:block; font-size:13px; margin-top:2px}
    .micro-item span{display:block; font-size:12px; color:var(--muted); margin-top:4px; line-height:1.5}

    .hero-side{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.70));
      box-shadow: var(--shadow);
      padding:18px;
      overflow:hidden;
      position:relative;
    }
    .hero-side:after{
      content:"";
      position:absolute;
      width:260px; height:260px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,59,122,.30), transparent 60%),
                  radial-gradient(circle at 70% 40%, rgba(124,58,237,.26), transparent 58%);
      right:-120px; top:-120px;
      opacity:.7;
      pointer-events:none;
    }
    .side-inner{position:relative; z-index:1}
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom:12px;
    }
    .side-title h2{
      margin:0;
      font-size:14px; letter-spacing:.2px;
    }
    .side-badge{
      font-size:12px;
      padding:6px 10px;
      border-radius:999px;
      background: rgba(255,59,122,.10);
      border:1px solid rgba(255,59,122,.22);
      color:#a20a37;
      font-weight:700;
      white-space:nowrap;
    }

    .stats{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    .stat{
      padding:14px 14px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.78);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      min-height:88px;
    }
    .stat:hover{
      transform: translateY(-2px);
      box-shadow: 0 14px 30px rgba(16,24,40,.10);
      border-color: rgba(255,59,122,.24);
    }
    .stat strong{
      display:block;
      font-size:18px;
      letter-spacing:-.2px;
      margin-bottom:6px;
    }
    .stat span{
      display:block;
      color:var(--muted);
      font-size:12px;
      line-height:1.5;
    }

    .side-actions{
      margin-top:14px;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .tiny-link{
      display:inline-flex; align-items:center; gap:8px;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      color:#1a2433;
      font-weight:700;
      font-size:13px;
      transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
      cursor:pointer;
      user-select:none;
    }
    .tiny-link:hover{transform: translateY(-1px); box-shadow:0 12px 26px rgba(16,24,40,.10); border-color: rgba(124,58,237,.25)}
    .tiny-link svg{opacity:.9}

    .marquee{
      margin-top:14px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.76);
      overflow:hidden;
    }
    .marquee .row{
      display:flex; align-items:center; gap:12px;
      padding:12px 12px;
      color:#2b3440;
      font-size:13px;
      white-space:nowrap;
      animation: drift 18s linear infinite;
    }
    .marquee:hover .row{animation-play-state: paused}
    @keyframes drift{
      0%{transform: translateX(0)}
      100%{transform: translateX(-50%)}
    }
    .marquee .tag{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px;
      border-radius:999px;
      background: rgba(255,59,122,.10);
      border:1px solid rgba(255,59,122,.20);
      color:#a20a37;
      font-weight:750;
    }
    .marquee .tag:nth-child(2){background: rgba(124,58,237,.10); border-color: rgba(124,58,237,.22); color:#6b21a8}
    .marquee .tag:nth-child(3){background: rgba(29,78,216,.10); border-color: rgba(29,78,216,.22); color:#1e40af}
    .marquee .sep{opacity:.35}

    section{padding:34px 0}
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom:16px;
    }
    .section-head h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      max-width:58ch;
    }

    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:16px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap:16px;
    }
    .card{
      background: var(--card);
      border:1px solid rgba(17,24,39,.08);
      border-radius:var(--radius2);
      box-shadow: 0 10px 26px rgba(16,24,40,.06);
      padding:16px;
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(16,24,40,.10);
      border-color: rgba(255,59,122,.20);
    }
    .card h3{
      margin:0 0 8px;
      font-size:15px;
      letter-spacing:-.1px;
    }
    .card p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
    }

    .card-icon{
      width:44px; height:44px;
      border-radius:16px;
      display:flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, rgba(255,59,122,.12), rgba(124,58,237,.10));
      border:1px solid rgba(255,59,122,.18);
      color:#a20a37;
      margin-bottom:10px;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap:14px;
      align-items:stretch;
    }
    .step{
      padding:16px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.08);
      background:
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.72));
      box-shadow: 0 10px 24px rgba(16,24,40,.06);
      position:relative;
      overflow:hidden;
    }
    .step:before{
      content:"";
      position:absolute;
      top:-40px; right:-40px;
      width:120px; height:120px;
      border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(255,59,122,.20), transparent 60%);
      opacity:.8;
      pointer-events:none;
    }
    .step .num{
      width:40px; height:40px;
      border-radius:16px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(255,59,122,.10);
      border:1px solid rgba(255,59,122,.22);
      color:#a20a37;
      font-weight:900;
      margin-bottom:10px;
      position:relative; z-index:1;
    }
    .step h3{margin:0 0 8px; font-size:15px; position:relative; z-index:1}
    .step p{margin:0; color:var(--muted); font-size:13px; line-height:1.65; position:relative; z-index:1}

    .compare-wrap{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.68));
      box-shadow: var(--shadow);
      padding:16px;
    }
    .compare-top{
      display:flex; align-items:center; justify-content:space-between; gap:14px; flex-wrap:wrap;
      padding:6px 6px 14px;
      border-bottom:1px solid rgba(17,24,39,.08);
      margin-bottom:14px;
    }
    .rating{
      display:flex; align-items:center; gap:12px; flex-wrap:wrap;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(245,158,11,.22);
      background: rgba(245,158,11,.10);
    }
    .star{
      width:16px; height:16px;
      fill:#f59e0b;
      filter: drop-shadow(0 3px 8px rgba(245,158,11,.25));
    }
    .score{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .score strong{font-size:20px}
    .score span{color:var(--muted); font-size:12px; margin-top:4px}
    .compare-actions{
      display:flex; gap:10px; flex-wrap:wrap;
    }

    .compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.08);
      background:#fff;
    }
    .compare-table th, .compare-table td{
      padding:12px 12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      vertical-align:top;
      font-size:13px;
    }
    .compare-table th{
      background: linear-gradient(180deg, rgba(255,59,122,.10), rgba(124,58,237,.06));
      color:#1a2433;
      font-weight:900;
    }
    .compare-table tr:last-child td{border-bottom:none}
    .badge{
      display:inline-flex; align-items:center; justify-content:center;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.85);
      font-weight:800;
      font-size:12px;
      white-space:nowrap;
    }
    .badge.good{
      border-color: rgba(14,165,233,.25);
      background: rgba(14,165,233,.10);
      color:#075985;
    }
    .badge.hot{
      border-color: rgba(255,59,122,.22);
      background: rgba(255,59,122,.10);
      color:#a20a37;
    }
    .badge.neutral{
      border-color: rgba(17,24,39,.12);
      background: rgba(17,24,39,.03);
      color:#2b3440;
    }

    .pricing-row{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-top:10px;
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:16px;
      align-items:start;
    }
    .timeline-card{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.88), rgba(255,255,255,.66));
      box-shadow: var(--shadow);
      padding:16px;
      position:relative;
      overflow:hidden;
    }
    .timeline-card:before{
      content:"";
      position:absolute;
      inset:-2px;
      background: radial-gradient(600px 260px at 20% 0%, rgba(255,59,122,.14), transparent 58%),
                  radial-gradient(600px 260px at 90% 10%, rgba(124,58,237,.12), transparent 55%);
      opacity:.6;
      pointer-events:none;
    }
    .timeline-inner{position:relative; z-index:1}
    .timeline-card h3{margin:0 0 10px; font-size:15px}
    .timeline-list{
      margin:0; padding:0; list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .titem{
      display:flex; gap:10px; align-items:flex-start;
      padding:10px 10px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.78);
    }
    .ticon{
      width:32px; height:32px;
      border-radius:12px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(255,59,122,.10);
      border:1px solid rgba(255,59,122,.20);
      color:#a20a37;
      flex:0 0 auto;
      margin-top:2px;
    }
    .titem strong{display:block; font-size:13px; margin-bottom:4px}
    .titem span{display:block; color:var(--muted); font-size:12px; line-height:1.6}

    .tabs{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-bottom:12px;
    }
    .tab{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      cursor:pointer;
      font-weight:800;
      font-size:13px;
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
      user-select:none;
    }
    .tab:hover{transform:translateY(-1px); border-color:rgba(255,59,122,.26); box-shadow:0 12px 26px rgba(16,24,40,.08)}
    .tab.active{
      border-color: rgba(255,59,122,.35);
      background: linear-gradient(135deg, rgba(255,59,122,.16), rgba(124,58,237,.12));
      color:#a20a37;
    }

    .list-card{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.78);
      box-shadow: 0 10px 26px rgba(16,24,40,.06);
    }
    .list-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-bottom:12px;
    }
    .list-head h3{margin:0; font-size:15px}
    .list-head p{margin:0; color:var(--muted); font-size:13px; line-height:1.6; max-width:62ch}

    .model-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:10px;
    }
    .chip{
      padding:10px 10px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      font-size:13px;
      font-weight:800;
      color:#202939;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
      min-height:44px;
    }
    .chip:hover{transform:translateY(-2px); border-color:rgba(255,59,122,.22); box-shadow:0 14px 26px rgba(16,24,40,.10)}
    .chip small{
      font-size:11px;
      color:var(--muted);
      font-weight:750;
      white-space:nowrap;
    }

    .articles{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:16px;
      align-items:start;
    }
    .article-list{
      margin:0; padding:0; list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .article-item{
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background:#fff;
      padding:12px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
    }
    .article-item:hover{
      transform: translateY(-2px);
      border-color: rgba(124,58,237,.22);
      box-shadow:0 14px 30px rgba(16,24,40,.10);
    }
    .article-item strong{
      display:block;
      font-size:13px;
      margin-bottom:6px;
      letter-spacing:.1px;
    }
    .article-item span{
      display:block;
      font-size:12px; color:var(--muted); line-height:1.6;
    }
    .article-item a{
      flex:0 0 auto;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.90);
      font-weight:900;
      font-size:13px;
    }
    .article-item a:hover{border-color:rgba(255,59,122,.30); background:rgba(255,59,122,.06)}

    .form-card{
      padding:18px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:
        linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.68));
      box-shadow: var(--shadow);
    }
    form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    label{
      display:flex; flex-direction:column; gap:8px;
      font-size:12px;
      color:var(--muted);
      font-weight:750;
    }
    input, select, textarea{
      width:100%;
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background:#fff;
      color:#0b1020;
      font-weight:650;
      font-size:13px;
      outline:none;
      transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
    }
    textarea{min-height:110px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(255,59,122,.35);
      box-shadow: var(--focus);
    }

    .form-actions{
      grid-column: 1 / -1;
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-top:4px;
    }
    .hint{
      color:var(--muted);
      font-size:12px;
      line-height:1.5;
      max-width:62ch;
    }
    .consent{
      display:flex; align-items:center; gap:10px;
      font-size:12px; color:var(--muted);
      user-select:none;
    }
    .checkbox{
      width:18px; height:18px;
      border-radius:6px;
      border:1px solid rgba(17,24,39,.20);
      background:#fff;
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      flex:0 0 auto;
    }
    .checkbox svg{opacity:0; transform: scale(.6); transition: opacity .15s ease, transform .15s ease}
    .checkbox.checked{
      border-color: rgba(255,59,122,.35);
      background: rgba(255,59,122,.10);
    }
    .checkbox.checked svg{opacity:1; transform: scale(1)}

    details{
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.78);
      padding:12px 12px;
      transition: box-shadow .15s ease, border-color .15s ease, transform .15s ease;
    }
    details[open]{border-color: rgba(255,59,122,.22); box-shadow:0 14px 30px rgba(16,24,40,.10); transform:translateY(-1px)}
    summary{
      cursor:pointer;
      list-style:none;
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      font-weight:900;
      font-size:14px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-left{display:flex; gap:10px; align-items:flex-start}
    .qicon{
      width:34px; height:34px;
      border-radius:14px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(255,59,122,.10);
      border:1px solid rgba(255,59,122,.20);
      color:#a20a37;
      flex:0 0 auto;
      margin-top:1px;
    }
    .chev{
      width:26px; height:26px;
      border-radius:10px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .18s ease;
    }
    details[open] .chev{transform: rotate(180deg)}
    .ans{
      margin-top:10px;
      color:var(--muted);
      font-size:13px;
      line-height:1.7;
      padding-left:44px;
    }

    .review-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:16px;
    }
    .review{
      padding:16px;
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:#fff;
      box-shadow: 0 10px 26px rgba(16,24,40,.06);
      position:relative;
      overflow:hidden;
    }
    .review:before{
      content:"";
      position:absolute; inset:-1px;
      background: radial-gradient(520px 200px at 10% 0%, rgba(255,59,122,.12), transparent 55%),
                  radial-gradient(420px 180px at 95% 10%, rgba(124,58,237,.10), transparent 58%);
      opacity:.8;
      pointer-events:none;
    }
    .review-inner{position:relative; z-index:1}
    .review-head{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom:10px;
    }
    .avatar{
      width:42px; height:42px;
      border-radius:16px;
      background: linear-gradient(135deg, rgba(255,59,122,.16), rgba(124,58,237,.12));
      border:1px solid rgba(255,59,122,.20);
      display:flex; align-items:center; justify-content:center;
      font-weight:1000;
      color:#a20a37;
    }
    .review-meta{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .review-meta strong{font-size:13px}
    .review-meta span{font-size:12px; color:var(--muted); margin-top:6px}
    .review-text{
      margin:0;
      color:#2b3440;
      font-size:13px;
      line-height:1.75;
    }
    .stars-mini{
      display:flex; gap:4px; align-items:center;
      color:#f59e0b;
      font-weight:900;
      font-size:12px;
      white-space:nowrap;
    }

    .case-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:16px;
      align-items:stretch;
    }
    .case-card{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background: linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.68));
      box-shadow: var(--shadow);
      overflow:hidden;
      display:flex; flex-direction:column;
    }
    .case-top{
      padding:16px 16px 0;
    }
    .case-top h3{margin:0 0 8px; font-size:15px}
    .case-top p{margin:0 0 14px; color:var(--muted); font-size:13px; line-height:1.7}
    .case-media{
      padding:0 16px 16px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    .media{
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background:#fff;
      overflow:hidden;
    }
    .media img{
      width:100%;
      height:auto;
      display:block;
      object-fit:contain;
    }
    .media figcaption{
      padding:10px 10px;
      font-size:12px;
      color:var(--muted);
      border-top:1px solid rgba(17,24,39,.08);
      line-height:1.5;
    }

    .help-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:16px;
      align-items:start;
    }
    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      padding:6px 0 0;
    }
    .cloud-tag{
      padding:9px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
      font-size:13px;
      font-weight:800;
      color:#2b3440;
      cursor:pointer;
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
      user-select:none;
    }
    .cloud-tag:hover{
      transform: translateY(-2px);
      border-color: rgba(124,58,237,.25);
      box-shadow:0 14px 26px rgba(16,24,40,.08);
    }

    .network-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:16px;
    }
    .network-map{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:
        radial-gradient(600px 260px at 30% 10%, rgba(255,59,122,.12), transparent 60%),
        radial-gradient(520px 240px at 85% 40%, rgba(124,58,237,.10), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.90), rgba(255,255,255,.65));
      box-shadow: var(--shadow);
      padding:16px;
      overflow:hidden;
      position:relative;
      min-height:260px;
    }
    .network-map:before{
      content:"";
      position:absolute;
      left:-80px; top:30px;
      width:280px; height:280px;
      border-radius:50%;
      background: radial-gradient(circle at 35% 35%, rgba(14,165,233,.22), transparent 62%);
      opacity:.8;
      pointer-events:none;
    }
    .network-inner{position:relative; z-index:1}
    .map-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-bottom:10px;
    }
    .map-title h3{margin:0; font-size:15px}
    .map-legend{
      display:flex; gap:8px; align-items:center; flex-wrap:wrap;
      color:var(--muted); font-size:12px; font-weight:800;
    }
    .legend-dot{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand), var(--brand2));
      box-shadow:0 0 0 4px rgba(255,59,122,.14);
      border:1px solid rgba(255,59,122,.25);
    }
    .legend-dot.blue{
      background: linear-gradient(135deg, var(--ok), #22c55e);
      box-shadow:0 0 0 4px rgba(14,165,233,.14);
      border-color: rgba(14,165,233,.28);
    }

    .map-dots{
      margin-top:14px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .city{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.78);
      transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
    }
    .city:hover{
      transform: translateY(-2px);
      border-color: rgba(255,59,122,.22);
      box-shadow:0 14px 26px rgba(16,24,40,.08);
    }
    .city strong{font-size:13px}
    .city span{font-size:12px; color:var(--muted); white-space:nowrap}

    .footer{
      margin-top:18px;
      background: linear-gradient(180deg, rgba(255,255,255,.70), rgba(255,255,255,.95));
      border-top:1px solid rgba(17,24,39,.08);
      padding:22px 0 18px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr 1fr 1fr;
      gap:16px;
      align-items:start;
    }
    .foot-card{
      border-radius:var(--radius);
      border:1px solid rgba(17,24,39,.08);
      background:#fff;
      padding:16px;
      box-shadow: 0 10px 26px rgba(16,24,40,.06);
    }
    .foot-card h3{margin:0 0 10px; font-size:14px}
    .foot-card p{margin:0; color:var(--muted); font-size:13px; line-height:1.7}
    .foot-links{
      display:flex; flex-direction:column; gap:10px;
      padding:0; margin:0; list-style:none;
    }
    .foot-links a{
      padding:10px 10px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.9);
      font-weight:800;
      font-size:13px;
    }
    .foot-links a:hover{border-color:rgba(255,59,122,.26); background:rgba(255,59,122,.06)}
    .subfoot{
      margin-top:14px;
      display:flex; justify-content:space-between; gap:12px; flex-wrap:wrap;
      color:var(--muted);
      font-size:12px;
      padding:0 4px;
    }
    .subfoot strong{color:#2b3440}
    .backtop{
      position:fixed;
      right:16px;
      bottom:16px;
      z-index:60;
      width:48px; height:48px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.92);
      box-shadow: 0 16px 40px rgba(16,24,40,.14);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      opacity:0;
      pointer-events:none;
      transform: translateY(10px);
      transition: opacity .18s ease, transform .18s ease;
    }
    .backtop.show{
      opacity:1;
      pointer-events:auto;
      transform: translateY(0);
    }
    .backtop:focus{outline:none; box-shadow: var(--focus)}
    .backtop svg{display:block}

    .float-kefu{
      position:fixed;
      left:16px;
      bottom:16px;
      z-index:60;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-start;
      pointer-events:none;
    }
    .float-kefu .btn{
      pointer-events:auto;
    }
    .kefu-pop{
      display:none;
      width:270px;
      padding:14px;
      border-radius:20px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.95);
      box-shadow: 0 20px 60px rgba(16,24,40,.18);
      backdrop-filter: blur(8px);
    }
    .kefu-pop.show{display:block}
    .kefu-pop h4{margin:0 0 8px; font-size:14px}
    .kefu-pop p{margin:0 0 12px; color:var(--muted); font-size:12px; line-height:1.6}
    .kefu-pop img{
      width:92px; height:92px;
      border-radius:18px;
      object-fit:cover;
      border:1px solid rgba(17,24,39,.10);
      display:block;
    }
    .kefu-row{
      display:flex; gap:12px; align-items:center;
    }
    .kefu-row .meta{
      display:flex; flex-direction:column; gap:6px;
      flex:1;
    }
    .kefu-row .meta strong{font-size:13px}
    .kefu-row .meta span{font-size:12px; color:var(--muted); line-height:1.5}
    .kefu-row .pill2{
      margin-top:2px;
      display:inline-flex; align-items:center; justify-content:center;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(255,59,122,.22);
      background: rgba(255,59,122,.08);
      font-size:12px;
      font-weight:900;
      color:#a20a37;
      white-space:nowrap;
    }

    .fade-in{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .fade-in.show{
      opacity:1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      nav{display:none}
      .burger{display:flex}
      .mobile-panel{display:block}
      .hero-card{padding:18px}
      .hero h1{font-size:28px}
      .micro-item{min-width: 0; flex: 1 1 210px}
      .grid-3{grid-template-columns:1fr}
      .grid-2{grid-template-columns:1fr}
      .steps{grid-template-columns: 1fr 1fr}
      .review-grid{grid-template-columns:1fr}
      .articles{grid-template-columns:1fr}
      .model-grid{grid-template-columns:1fr 1fr}
      .case-grid{grid-template-columns:1fr}
      .timeline{grid-template-columns:1fr}
      .help-grid{grid-template-columns:1fr}
      .network-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr}
      form{grid-template-columns:1fr}
      .ans{padding-left:0}
    }
    @media (max-width: 520px){
      .steps{grid-template-columns:1fr}
      .stats{grid-template-columns:1fr 1fr}
      .model-grid{grid-template-columns:1fr}
      .nav-cta .btn-ghost{display:none}
      .kefu-pop{width: 240px}
      .float-kefu{left:12px; bottom:12px}
      .backtop{right:12px; bottom:12px}
    }