:root{
      --bg:#f6f8ff;
      --panel:#ffffff;
      --text:#101828;
      --muted:#5b677a;
      --muted2:#7a879c;
      --border:rgba(16,24,40,.10);
      --shadow:0 18px 45px rgba(20,46,112,.10);
      --shadow2:0 10px 28px rgba(20,46,112,.12);
      --blue:#0b5cff;
      --blue2:#1f7aff;
      --deep:#06328f;
      --deep2:#0b2e66;
      --ring:rgba(11,92,255,.28);
      --chip:#eef3ff;
      --chip2:#f3f7ff;
      --good:#0f766e;
      --warn:#9a3412;
      --focus:#0b5cff;
      --radius:16px;
      --radius2:22px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    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", sans-serif;
      color:var(--text);
      background:
        radial-gradient(900px 420px at 15% -10%, rgba(11,92,255,.16), rgba(11,92,255,0) 60%),
        radial-gradient(900px 420px at 85% 10%, rgba(31,122,255,.14), rgba(31,122,255,0) 55%),
        linear-gradient(180deg, #f7f9ff 0%, #f3f7ff 40%, #f6f8ff 100%);
    }
    a{color:inherit; text-decoration:none}
    .container{max-width:var(--max); margin:0 auto; padding:0 18px}
    .topbar{
      position:sticky; top:0; z-index:50;
      backdrop-filter: blur(10px);
      background: rgba(246,248,255,.70);
      border-bottom:1px solid rgba(16,24,40,.08);
    }
    .nav-wrap{
      display:flex; align-items:center; justify-content:space-between; gap:14px;
      padding:12px 0;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width: 200px;
    }
    .ai-page-logo{
      width:42px; height:42px; border-radius:12px;
      box-shadow:0 10px 25px rgba(11,92,255,.16);
      background:#fff;
      object-fit:contain;
    }
    .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-right{display:flex; align-items:center; gap:10px; justify-content:flex-end; flex:1}
    .menu{
      display:flex; gap:14px; align-items:center;
    }
    .menu a{
      font-size:13px; color:var(--muted);
      padding:8px 10px; border-radius:12px;
      border:1px solid transparent;
      transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      white-space:nowrap;
    }
    .menu a:hover{
      background: rgba(11,92,255,.06);
      border-color: rgba(11,92,255,.12);
      color: #0b2e66;
      transform: translateY(-1px);
    }
    .cta-row{display:flex; align-items:center; gap:10px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      border-radius:14px;
      padding:10px 14px;
      border:1px solid rgba(11,92,255,.20);
      background: rgba(255,255,255,.72);
      color:#0b2e66;
      font-weight:650;
      font-size:13px;
      transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:hover{transform: translateY(-1px); box-shadow:0 14px 35px rgba(11,92,255,.14); border-color: rgba(11,92,255,.35)}
    .btn:active{transform: translateY(0px)}
    .btn-primary{
      background: linear-gradient(180deg, #0b5cff 0%, #0a4fe3 100%);
      border-color: rgba(11,92,255,.35);
      color:#fff;
      box-shadow:0 16px 40px rgba(11,92,255,.22);
    }
    .btn-primary:hover{box-shadow:0 18px 52px rgba(11,92,255,.30)}
    .btn-ghost{
      background: rgba(255,255,255,.65);
      border-color: rgba(16,24,40,.12);
      color: var(--text);
    }
    .icon-dot{
      width:10px; height:10px; border-radius:50%;
      background: radial-gradient(circle at 30% 30%, #6fd3ff, #0b5cff 60%, #062e83 100%);
      box-shadow:0 0 0 4px rgba(11,92,255,.12);
    }
    .hamburger{display:none}
    .mobile-menu{
      display:none;
      border-top:1px solid rgba(16,24,40,.08);
      padding:10px 0 14px;
    }
    .mobile-menu .menu{
      flex-direction:column; align-items:stretch; gap:8px;
    }
    .mobile-menu .menu a{
      width:100%;
      padding:12px 12px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      color:var(--text);
    }
    .mobile-menu .cta-row{flex-direction:column; align-items:stretch}
    .mobile-menu .cta-row .btn{width:100%}
    .hero{
      padding:34px 0 18px;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute; inset:-120px -160px auto -160px;
      height:460px;
      background:
        radial-gradient(closest-side at 20% 30%, rgba(11,92,255,.25), rgba(11,92,255,0) 70%),
        radial-gradient(closest-side at 70% 20%, rgba(31,122,255,.20), rgba(31,122,255,0) 65%);
      pointer-events:none;
      filter:saturate(1.1);
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:stretch;
      position:relative;
    }
    .hero-card{
      background: linear-gradient(180deg, rgba(255,255,255,.82) 0%, rgba(255,255,255,.62) 100%);
      border:1px solid rgba(11,92,255,.14);
      border-radius: var(--radius2);
      box-shadow: var(--shadow);
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .hero-card::after{
      content:"";
      position:absolute; right:-140px; top:-140px;
      width:320px; height:320px; border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(111,211,255,.35), rgba(11,92,255,.20) 45%, rgba(11,92,255,0) 70%);
      pointer-events:none;
      transform: rotate(12deg);
    }
    .badge{
      display:inline-flex; align-items:center; gap:10px;
      padding:8px 12px;
      border-radius: 999px;
      border:1px solid rgba(11,92,255,.20);
      background: rgba(11,92,255,.06);
      color:#0b2e66;
      font-weight:650;
      font-size:12.5px;
      letter-spacing:.2px;
    }
    .badge .spark{
      width:18px; height:18px;
      border-radius:6px;
      background: linear-gradient(180deg, rgba(11,92,255,.95), rgba(11,92,255,.55));
      box-shadow:0 10px 20px rgba(11,92,255,.25);
      position:relative;
      overflow:hidden;
    }
    .badge .spark::before{
      content:"";
      position:absolute; inset:-8px;
      background: conic-gradient(from 180deg, rgba(255,255,255,.0), rgba(255,255,255,.9), rgba(255,255,255,.0));
      animation: spin 3.5s linear infinite;
      opacity:.35;
    }
    @keyframes spin{to{transform: rotate(360deg)}}
    .h1{
      margin:14px 0 10px;
      font-size:34px;
      letter-spacing:-.6px;
      line-height:1.15;
    }
    .lead{
      margin:0 0 16px;
      color:var(--muted);
      font-size:15px;
      line-height:1.7;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex; flex-wrap:wrap;
      gap:12px;
      align-items:center;
      margin-top:14px;
    }
    .hero-mini{
      display:flex; gap:12px;
      margin-top:18px;
      align-items:flex-start;
    }
    .mini-item{
      flex:1;
      min-width: 180px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.60);
      border-radius: 16px;
      padding:12px 12px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .mini-item:hover{transform: translateY(-2px); box-shadow:0 16px 35px rgba(11,92,255,.14); border-color: rgba(11,92,255,.20)}
    .mini-top{display:flex; align-items:center; gap:10px}
    .mini-icon{
      width:34px; height:34px; border-radius:12px;
      background: linear-gradient(180deg, rgba(11,92,255,.16), rgba(11,92,255,.06));
      border:1px solid rgba(11,92,255,.18);
      display:flex; align-items:center; justify-content:center;
      color:#0b5cff;
      font-weight:900;
      font-size:14px;
    }
    .mini-item strong{display:block; font-size:13px}
    .mini-item span{display:block; margin-top:6px; color:var(--muted); font-size:12.5px; line-height:1.5}
    .hero-side{
      display:flex; flex-direction:column; gap:12px;
    }
    .side-card{
      background: rgba(255,255,255,.70);
      border:1px solid rgba(16,24,40,.10);
      border-radius: var(--radius2);
      box-shadow: 0 16px 45px rgba(20,46,112,.08);
      padding:16px;
      overflow:hidden;
      position:relative;
    }
    .side-card::before{
      content:"";
      position:absolute; left:-60px; top:-80px;
      width:180px; height:180px; border-radius:50%;
      background: radial-gradient(circle at 30% 30%, rgba(11,92,255,.20), rgba(11,92,255,0) 70%);
      pointer-events:none;
    }
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .side-title h3{
      margin:0;
      font-size:14px;
      letter-spacing:.2px;
    }
    .pill{
      font-size:12px;
      color:#0b2e66;
      background: rgba(11,92,255,.08);
      border:1px solid rgba(11,92,255,.18);
      padding:6px 10px;
      border-radius:999px;
      font-weight:700;
    }
    .metrics{
      margin-top:12px;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .metric{
      border-radius: 16px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      padding:12px 12px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      cursor:default;
    }
    .metric:hover{transform: translateY(-2px); box-shadow:0 18px 40px rgba(11,92,255,.13); border-color: rgba(11,92,255,.22)}
    .metric .num{
      font-size:20px;
      font-weight:850;
      letter-spacing:-.4px;
    }
    .metric .lab{
      margin-top:6px;
      color:var(--muted);
      font-size:12.5px;
      line-height:1.4;
    }

    .section{padding:24px 0}
    .section-head{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom:14px;
    }
    .section-head h2{
      margin:0;
      font-size:22px;
      letter-spacing:-.3px;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:13.5px;
      line-height:1.6;
      max-width: 60ch;
    }
    .grid-3{display:grid; grid-template-columns: repeat(3, 1fr); gap:12px}
    .grid-2{display:grid; grid-template-columns: repeat(2, 1fr); gap:12px}
    .card{
      background: rgba(255,255,255,.72);
      border:1px solid rgba(16,24,40,.10);
      border-radius: var(--radius);
      padding:16px;
      box-shadow: 0 14px 35px rgba(20,46,112,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{transform: translateY(-2px); box-shadow: 0 20px 50px rgba(11,92,255,.13); border-color: rgba(11,92,255,.18)}
    .card h3{margin:10px 0 6px; font-size:15px}
    .card p{margin:0; color:var(--muted); font-size:13.3px; line-height:1.7}
    .card .cap{
      display:flex; gap:10px; align-items:center; justify-content:flex-start;
      padding:10px 12px;
      border-radius: 16px;
      background: rgba(11,92,255,.06);
      border: 1px solid rgba(11,92,255,.12);
    }
    .cap .badge2{
      width:34px; height:34px; border-radius:12px;
      background: linear-gradient(180deg, rgba(11,92,255,.25), rgba(11,92,255,.08));
      border:1px solid rgba(11,92,255,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight:900; color:#0b5cff;
    }
    .cap strong{font-size:13px}
    .cap span{display:block; margin-top:4px; color:var(--muted); font-size:12px}
    .steps{
      display:grid; grid-template-columns: repeat(4, 1fr); gap:12px;
    }
    .step{
      position:relative;
      overflow:hidden;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(16,24,40,.10);
      border-radius: var(--radius);
      padding:16px;
      box-shadow: 0 14px 35px rgba(20,46,112,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .step:hover{transform: translateY(-2px); box-shadow: 0 20px 50px rgba(11,92,255,.13); border-color: rgba(11,92,255,.18)}
    .step .n{
      font-weight:900; font-size:28px; letter-spacing:-.8px;
      color: rgba(11,92,255,.22);
      margin-bottom:6px;
    }
    .step h3{margin:0 0 6px; font-size:15px}
    .step p{margin:0; color:var(--muted); font-size:13.3px; line-height:1.7}
    .compare{
      overflow:auto;
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.66);
      box-shadow: 0 18px 45px rgba(20,46,112,.07);
    }
    table{
      width:100%;
      min-width:820px;
      border-collapse:separate;
      border-spacing:0;
      font-size:13.2px;
    }
    thead th{
      text-align:left;
      padding:14px 14px;
      background: linear-gradient(180deg, rgba(11,92,255,.12), rgba(11,92,255,.05));
      border-bottom:1px solid rgba(16,24,40,.10);
      color:#0b2e66;
      position:sticky; top:0;
      z-index:1;
      white-space:nowrap;
    }
    tbody td{
      padding:12px 14px;
      border-bottom:1px solid rgba(16,24,40,.08);
      color:var(--muted);
      vertical-align:top;
    }
    tbody tr:last-child td{border-bottom:none}
    .td-strong{color:var(--text); font-weight:750}
    .tag{
      display:inline-flex; align-items:center; gap:8px;
      padding:7px 10px;
      border-radius: 999px;
      background: rgba(11,92,255,.08);
      border:1px solid rgba(11,92,255,.18);
      color:#0b2e66;
      font-weight:750;
      font-size:12.5px;
      white-space:nowrap;
    }
    .tag.good{background: rgba(15,118,110,.10); border-color: rgba(15,118,110,.22); color: #0f766e}
    .tag.neutral{background: rgba(16,24,40,.06); border-color: rgba(16,24,40,.12); color: #334155}
    .tag.warn{background: rgba(154,52,18,.10); border-color: rgba(154,52,18,.24); color: #9a3412}
    .star-row{display:flex; align-items:center; gap:8px; margin-top:10px}
    .stars{
      display:inline-flex; gap:3px;
      transform: translateY(1px);
    }
    .star{
      width:18px; height:18px;
      background: radial-gradient(circle at 30% 30%, #ffe08a, #ffcc33 55%, #f59e0b 100%);
      clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
      box-shadow: 0 10px 22px rgba(245,158,11,.25);
    }
    .score{
      font-weight:900;
      letter-spacing:-.4px;
      font-size:22px;
      color:#0b2e66;
    }
    .subtle{
      color:var(--muted);
      font-size:13px;
      line-height:1.6;
      margin-top:6px;
    }
    .two-col{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:stretch;
    }
    .list{
      margin:10px 0 0;
      padding:0;
      list-style:none;
      display:grid;
      gap:10px;
    }
    .list li{
      display:flex; gap:10px; align-items:flex-start;
      padding:10px 12px;
      border-radius: 16px;
      background: rgba(255,255,255,.62);
      border:1px solid rgba(16,24,40,.10);
    }
    .check{
      width:22px; height:22px; border-radius:8px;
      background: rgba(11,92,255,.10);
      border:1px solid rgba(11,92,255,.20);
      display:flex; align-items:center; justify-content:center;
      color:#0b5cff; font-weight:900; font-size:13px;
      flex:0 0 auto;
      margin-top:1px;
    }
    .list strong{display:block; font-size:13.5px}
    .list span{display:block; margin-top:4px; color:var(--muted); font-size:12.7px; line-height:1.6}
    .tabs{
      display:flex; flex-wrap:wrap; gap:8px;
      margin:8px 0 12px;
    }
    .tab{
      padding:9px 12px;
      border-radius: 999px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.70);
      color:var(--muted);
      font-weight:700;
      font-size:12.8px;
      cursor:pointer;
      transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease;
      user-select:none;
    }
    .tab:hover{transform: translateY(-1px); border-color: rgba(11,92,255,.22); color:#0b2e66}
    .tab.active{
      background: rgba(11,92,255,.10);
      border-color: rgba(11,92,255,.30);
      color:#0b2e66;
      box-shadow:0 16px 30px rgba(11,92,255,.12);
    }
    .tab-panel{
      display:none;
      animation: fadeIn .22s ease both;
    }
    .tab-panel.active{display:block}
    @keyframes fadeIn{from{opacity:0; transform: translateY(4px)} to{opacity:1; transform: translateY(0)}}
    .network{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:12px;
      align-items:stretch;
    }
    .timeline{
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.68);
      padding:16px;
      box-shadow: 0 18px 45px rgba(20,46,112,.06);
    }
    .time-line-list{
      display:grid;
      gap:12px;
      margin-top:10px;
    }
    .titem{
      display:grid;
      grid-template-columns: 44px 1fr;
      gap:10px;
      align-items:flex-start;
    }
    .ticon{
      width:44px; height:44px; border-radius:16px;
      border:1px solid rgba(11,92,255,.18);
      background: rgba(11,92,255,.08);
      display:flex; align-items:center; justify-content:center;
      font-weight:950; color:#0b5cff;
    }
    .titem strong{display:block; font-size:13.6px}
    .titem span{display:block; margin-top:4px; color:var(--muted); font-size:12.9px; line-height:1.6}
    .kv-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:10px;
      margin-top:12px;
    }
    .kv{
      border-radius: 16px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      padding:12px;
      transition: transform .2s ease, box-shadow .2s ease;
    }
    .kv:hover{transform: translateY(-2px); box-shadow:0 18px 40px rgba(11,92,255,.12)}
    .kv .k{color:var(--muted); font-size:12.6px}
    .kv .v{margin-top:6px; font-size:14.5px; font-weight:850; color:#0b2e66; line-height:1.3}

    .faq{
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.68);
      box-shadow: 0 18px 45px rgba(20,46,112,.06);
      padding:10px;
    }
    details{
      border-radius: 16px;
      border:1px solid rgba(16,24,40,.08);
      background: rgba(255,255,255,.62);
      margin:10px 0;
      overflow:hidden;
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    details[open]{border-color: rgba(11,92,255,.25); box-shadow:0 18px 50px rgba(11,92,255,.12)}
    summary{
      list-style:none;
      cursor:pointer;
      padding:14px 14px;
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      font-weight:850; color:#0b2e66;
      user-select:none;
    }
    summary::-webkit-details-marker{display:none}
    .sum-left{display:flex; align-items:center; gap:10px}
    .qmark{
      width:26px; height:26px;
      border-radius:10px;
      background: rgba(11,92,255,.08);
      border:1px solid rgba(11,92,255,.18);
      display:flex; align-items:center; justify-content:center;
      color:#0b5cff;
      font-weight:950;
      flex:0 0 auto;
    }
    .chev{
      width:12px; height:12px; border-right:2px solid rgba(16,24,40,.35); border-bottom:2px solid rgba(16,24,40,.35);
      transform: rotate(45deg);
      transition: transform .18s ease;
      flex:0 0 auto;
    }
    details[open] .chev{transform: rotate(-135deg)}
    .answer{
      padding:0 14px 14px;
      color:var(--muted);
      line-height:1.8;
      font-size:13.5px;
    }

    .comments{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .comment{
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.72);
      padding:16px;
      box-shadow: 0 14px 35px rgba(20,46,112,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .comment:hover{transform: translateY(-2px); box-shadow: 0 20px 50px rgba(11,92,255,.13); border-color: rgba(11,92,255,.18)}
    .c-top{display:flex; align-items:center; justify-content:space-between; gap:10px}
    .avatar{
      width:42px; height:42px; border-radius:16px;
      background: linear-gradient(180deg, rgba(11,92,255,.18), rgba(11,92,255,.06));
      border:1px solid rgba(11,92,255,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight:950; color:#0b5cff;
      flex:0 0 auto;
    }
    .c-who strong{display:block; font-size:13.6px}
    .c-who span{display:block; margin-top:4px; color:var(--muted); font-size:12.7px}
    .c-text{
      margin-top:12px;
      color:var(--muted);
      line-height:1.8;
      font-size:13.4px;
    }
    .case-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap:12px;
    }
    .case{
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      overflow:hidden;
      box-shadow: 0 18px 45px rgba(20,46,112,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      display:flex; flex-direction:column;
    }
    .case:hover{transform: translateY(-2px); box-shadow: 0 24px 70px rgba(11,92,255,.14); border-color: rgba(11,92,255,.18)}
    .case-media{
      padding:14px;
      background:
        radial-gradient(240px 140px at 10% 10%, rgba(111,211,255,.20), rgba(111,211,255,0) 60%),
        linear-gradient(180deg, rgba(11,92,255,.10), rgba(11,92,255,.02));
      border-bottom:1px solid rgba(16,24,40,.08);
    }
    .case-media .meter{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .case-media .label{
      font-weight:900; color:#0b2e66; font-size:13px;
    }
    .case-media .chip-row{
      display:flex; flex-wrap:wrap; gap:8px;
      margin-top:10px;
    }
    .case-body{padding:14px 14px 16px}
    .case-body h3{margin:0; font-size:15.5px; letter-spacing:-.2px}
    .case-body p{margin:8px 0 0; color:var(--muted); font-size:13.4px; line-height:1.7}
    .case-foot{
      margin-top:12px;
      display:flex; gap:10px; align-items:center; justify-content:space-between;
    }
    .small-link{
      color:#0b5cff; font-weight:850; font-size:13px;
      padding:8px 10px;
      border-radius:12px;
      border:1px solid rgba(11,92,255,.18);
      background: rgba(11,92,255,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .small-link:hover{transform: translateY(-1px); box-shadow:0 18px 40px rgba(11,92,255,.12); border-color: rgba(11,92,255,.30)}
    .article-list{
      display:grid;
      gap:10px;
    }
    .article{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding:14px;
      border-radius: var(--radius);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.68);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .article:hover{transform: translateY(-2px); box-shadow: 0 20px 55px rgba(11,92,255,.12); border-color: rgba(11,92,255,.18)}
    .article strong{display:block; font-size:14.6px}
    .article span{display:block; margin-top:6px; color:var(--muted); font-size:12.8px; line-height:1.6}
    .article .meta{
      display:flex; flex-direction:column; align-items:flex-end; gap:10px;
      color:var(--muted2);
      font-size:12.2px;
      white-space:nowrap;
    }
    .meta .date{font-weight:750; color:#334155}
    .form{
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      box-shadow: 0 18px 45px rgba(20,46,112,.06);
      padding:16px;
    }
    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    label{display:block; font-size:12.6px; color:var(--muted); font-weight:750; margin-bottom:7px}
    input, select, textarea{
      width:100%;
      border-radius: 14px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.78);
      padding:11px 12px;
      font-size:13.8px;
      color:var(--text);
      outline:none;
      transition: box-shadow .2s ease, border-color .2s ease, background .2s ease;
    }
    textarea{min-height:110px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(11,92,255,.35);
      box-shadow: 0 0 0 4px var(--ring);
      background:#fff;
    }
    .form-actions{
      display:flex; gap:12px; align-items:center; justify-content:space-between;
      margin-top:12px;
      flex-wrap:wrap;
    }
    .hint{
      color:var(--muted);
      font-size:12.8px;
      line-height:1.6;
      max-width: 60ch;
    }
    .footer{
      margin-top:10px;
      padding:18px 0 22px;
      background: linear-gradient(180deg, rgba(6,50,143,.06), rgba(6,50,143,.02));
      border-top:1px solid rgba(16,24,40,.08);
    }
    .foot-grid{
      display:grid; grid-template-columns: 1.2fr .8fr; gap:12px; align-items:start;
    }
    .foot-card{
      border-radius: var(--radius2);
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.70);
      padding:16px;
    }
    .foot-card h3{margin:0 0 8px; font-size:14.6px}
    .foot-links{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:10px;
    }
    .foot-links a{
      padding:8px 10px;
      border-radius: 12px;
      border:1px solid rgba(16,24,40,.10);
      background: rgba(255,255,255,.62);
      color:var(--muted);
      font-weight:750;
      font-size:12.8px;
      transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, color .2s ease;
    }
    .foot-links a:hover{transform: translateY(-1px); border-color: rgba(11,92,255,.26); color:#0b2e66; box-shadow:0 18px 40px rgba(11,92,255,.12)}
    .copyright{
      margin-top:12px;
      color:var(--muted);
      font-size:12.7px;
      line-height:1.7;
    }

    .backtop{
      position:fixed;
      right:16px; bottom:16px;
      z-index:70;
      width:46px; height:46px;
      border-radius:16px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow:0 18px 45px rgba(20,46,112,.10);
      display:flex; align-items:center; justify-content:center;
      color:#0b5cff;
      cursor:pointer;
      opacity:0;
      pointer-events:none;
      transform: translateY(10px);
      transition: opacity .2s ease, transform .2s ease;
      user-select:none;
    }
    .backtop.show{opacity:1; pointer-events:auto; transform: translateY(0)}
    .backtop svg{width:20px; height:20px}

    .float-contact{
      position:fixed;
      left:16px; bottom:16px;
      z-index:70;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-start;
    }
    .float-btn{
      display:flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:18px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow:0 18px 45px rgba(20,46,112,.10);
      cursor:pointer;
      user-select:none;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .float-btn:hover{transform: translateY(-2px); box-shadow:0 22px 60px rgba(11,92,255,.14); border-color: rgba(11,92,255,.24)}
    .float-badge{
      width:34px; height:34px; border-radius:14px;
      background: rgba(11,92,255,.10);
      border:1px solid rgba(11,92,255,.22);
      display:flex; align-items:center; justify-content:center;
      color:#0b5cff; font-weight:950;
    }
    .float-text{display:flex; flex-direction:column; line-height:1.2}
    .float-text strong{font-size:12.8px}
    .float-text span{font-size:12.2px; color:var(--muted)}
    .qr-pop{
      position:fixed;
      left:16px; bottom:72px;
      z-index:80;
      width:240px;
      border-radius:22px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.90);
      backdrop-filter: blur(12px);
      box-shadow:0 24px 70px rgba(11,92,255,.20);
      padding:12px;
      display:none;
      transform-origin: left bottom;
      animation: pop .18s ease both;
    }
    @keyframes pop{from{opacity:0; transform: translateY(8px) scale(.98)} to{opacity:1; transform: translateY(0) scale(1)}}
    .qr-pop.show{display:block}
    .qr-head{display:flex; align-items:center; justify-content:space-between; gap:10px; margin-bottom:10px}
    .qr-head strong{font-size:13.4px; color:#0b2e66}
    .qr-close{
      width:34px; height:34px; border-radius:14px;
      border:1px solid rgba(16,24,40,.12);
      background: rgba(255,255,255,.75);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease, border-color .2s ease;
    }
    .qr-close:hover{transform: translateY(-1px); border-color: rgba(11,92,255,.24)}
    .qr-body{display:flex; flex-direction:column; gap:10px; align-items:center}
    .qr-body img{width:170px; height:auto; border-radius:16px; border:1px solid rgba(16,24,40,.10)}
    .qr-body span{color:var(--muted); font-size:12.8px; line-height:1.6; text-align:center}

    .reveal{
      opacity:0;
      transform: translateY(10px);
      transition: opacity .5s ease, transform .5s ease;
    }
    .reveal.show{
      opacity:1;
      transform: translateY(0);
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .hero-card{padding:18px}
      .grid-3{grid-template-columns: 1fr}
      .grid-2{grid-template-columns: 1fr}
      .steps{grid-template-columns: repeat(2, 1fr)}
      .two-col{grid-template-columns: 1fr}
      .network{grid-template-columns: 1fr}
      .kv-grid{grid-template-columns: repeat(2, 1fr)}
      .comments{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .foot-grid{grid-template-columns: 1fr}
      .menu{display:none}
      .hamburger{
        display:inline-flex;
        width:44px; height:44px;
        border-radius:16px;
        border:1px solid rgba(16,24,40,.12);
        background: rgba(255,255,255,.70);
        cursor:pointer;
        align-items:center; justify-content:center;
        transition: transform .2s ease, border-color .2s ease;
      }
      .hamburger:hover{transform: translateY(-1px); border-color: rgba(11,92,255,.26)}
      .hamburger svg{width:18px; height:18px}
      .mobile-menu{display:block}
      .mobile-menu[data-open="false"]{display:none}
      .float-contact{left:12px; bottom:12px}
      .qr-pop{left:12px; bottom:66px}
    }

    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .reveal{transition:none}
      .badge .spark::before{animation:none}
    }