:root{
      --bg0:#fbf7ff;
      --bg1:#f6fbff;
      --card:#ffffffcc;
      --card2:#ffffff;
      --text:#1f2937;
      --muted:#6b7280;
      --muted2:#4b5563;
      --line:rgba(17,24,39,.10);
      --shadow: 0 18px 50px rgba(17,24,39,.10);
      --shadow2: 0 10px 28px rgba(17,24,39,.10);
      --radius:18px;
      --radius2:14px;

      --brand1:#6d28d9; /* 紫 */
      --brand2:#0ea5e9; /* 蓝 */
      --brand3:#22c55e; /* 绿 */
      --brand4:#f97316; /* 橙 */
      --brand5:#ec4899; /* 粉 */
      --brandText:#0b1220;

      --btn:#111827;
      --btnText:#ffffff;
      --focus: rgba(14,165,233,.35);

      --container: 1140px;
      --pad: 20px;
    }

    *{ 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(--text);
      background:
        radial-gradient(1200px 700px at 12% 0%, rgba(109,40,217,.18), transparent 55%),
        radial-gradient(900px 600px at 90% 10%, rgba(14,165,233,.18), transparent 50%),
        radial-gradient(900px 600px at 30% 85%, rgba(34,197,94,.10), transparent 55%),
        linear-gradient(180deg, var(--bg0), var(--bg1));
      overflow-x:hidden;
    }

    a{ color:inherit; text-decoration:none; }
    a:hover{ text-decoration:none; }
    img{ max-width:100%; height:auto; display:block; }
    button, input, select, textarea{ font:inherit; }

    .container{
      width: min(var(--container), calc(100% - (var(--pad) * 2)));
      margin:0 auto;
    }

    .skip-link{
      position:absolute; left:-999px; top:auto;
      width:1px; height:1px; overflow:hidden;
    }
    .skip-link:focus{
      left:18px; top:14px; width:auto; height:auto;
      background:#fff; border:1px solid var(--line);
      padding:10px 12px; border-radius:12px;
      box-shadow: var(--shadow2);
      z-index:9999;
    }

    header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter: blur(12px);
      background: linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.60));
      border-bottom:1px solid rgba(17,24,39,.08);
    }

    .nav{
      display:flex;
      align-items:center;
      justify-content:space-between;
      padding:12px 0;
      gap:14px;
    }

    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width: 220px;
    }
    .logo-wrap{
      width:44px;
      height:44px;
      border-radius:14px;
      background:
        radial-gradient(18px 18px at 25% 20%, rgba(236,72,153,.35), transparent 60%),
        radial-gradient(22px 22px at 80% 30%, rgba(14,165,233,.35), transparent 60%),
        radial-gradient(24px 24px at 35% 85%, rgba(34,197,94,.25), transparent 65%),
        linear-gradient(135deg, rgba(109,40,217,.18), rgba(14,165,233,.12));
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 10px 24px rgba(17,24,39,.08);
      display:flex;
      align-items:center;
      justify-content:center;
      overflow:hidden;
    }
    .ai-page-logo{ width:100%; height:auto; object-fit:contain; }

    .brand-text{ display:flex; flex-direction:column; line-height:1.1; }
    .brand-name{
      font-weight:800;
      letter-spacing:.2px;
      font-size:14px;
    }
    .brand-sub{
      font-size:12px;
      color:var(--muted);
      margin-top:2px;
    }

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

    .menu{
      display:flex;
      align-items:center;
      gap:16px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .menu a{
      font-size:13px;
      color:rgba(17,24,39,.78);
      padding:8px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: transform .15s ease, background .15s ease, border-color .15s ease, color .15s ease;
      white-space:nowrap;
    }
    .menu a:hover{
      background: rgba(255,255,255,.75);
      border-color: rgba(17,24,39,.10);
      transform: translateY(-1px);
      color: rgba(17,24,39,.95);
    }

    .nav-actions{
      display:flex;
      align-items:center;
      gap:10px;
      margin-left:6px;
    }

    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding:10px 14px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      color: rgba(17,24,39,.95);
      transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
      cursor:pointer;
      user-select:none;
      white-space:nowrap;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 34px rgba(17,24,39,.12);
      border-color: rgba(17,24,39,.16);
      background: rgba(255,255,255,.95);
    }
    .btn:active{ transform: translateY(0px); box-shadow:none; }
    .btn:focus-visible{ outline:3px solid var(--focus); outline-offset:2px; }

    .btn-primary{
      background: linear-gradient(135deg, rgba(109,40,217,.96), rgba(14,165,233,.92));
      border-color: rgba(109,40,217,.22);
      color:#fff;
      box-shadow: 0 14px 36px rgba(109,40,217,.22);
    }
    .btn-primary:hover{
      box-shadow: 0 20px 56px rgba(109,40,217,.26);
      border-color: rgba(109,40,217,.28);
      background: linear-gradient(135deg, rgba(109,40,217,1), rgba(14,165,233,1));
    }

    .btn-dark{
      background: rgba(17,24,39,.96);
      color:#fff;
      border-color: rgba(17,24,39,.20);
      box-shadow: 0 14px 36px rgba(17,24,39,.18);
    }
    .btn-dark:hover{ background: rgba(17,24,39,1); }

    .icon-dot{
      width:10px; height:10px; border-radius:50%;
      background: conic-gradient(from 180deg, var(--brand1), var(--brand2), var(--brand3), var(--brand4), var(--brand5), var(--brand1));
      box-shadow: 0 0 0 6px rgba(109,40,217,.10);
    }

    .mobile-toggle{
      display:none;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.78);
      cursor:pointer;
      transition: transform .16s ease, background .16s ease;
    }
    .mobile-toggle:hover{ transform: translateY(-1px); background: rgba(255,255,255,.95); }
    .hamburger{
      width:20px; height:14px; position:relative;
    }
    .hamburger span{
      position:absolute; left:0; right:0; height:2px;
      background: rgba(17,24,39,.85);
      border-radius:2px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger span:nth-child(1){ top:0; }
    .hamburger span:nth-child(2){ top:6px; }
    .hamburger span:nth-child(3){ top:12px; }
    .mobile-toggle[aria-expanded="true"] .hamburger span:nth-child(1){ top:6px; transform: rotate(45deg); }
    .mobile-toggle[aria-expanded="true"] .hamburger span:nth-child(2){ opacity:0; }
    .mobile-toggle[aria-expanded="true"] .hamburger span:nth-child(3){ top:6px; transform: rotate(-45deg); }

    .mobile-menu{
      display:none;
      padding:10px 0 16px;
    }
    .mobile-menu .grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .mobile-menu a{
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.75);
      font-size:13px;
      color: rgba(17,24,39,.88);
      transition: transform .16s ease, background .16s ease;
    }
    .mobile-menu a:hover{ transform: translateY(-1px); background: rgba(255,255,255,.95); }
    .mobile-menu .actions{
      display:flex; gap:10px; margin-top:12px; flex-wrap:wrap;
    }

    main{ padding: 10px 0 30px; }

    .hero{
      position:relative;
      padding: 44px 0 22px;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute; inset:-80px -120px auto -120px;
      height:520px;
      background:
        radial-gradient(300px 200px at 15% 20%, rgba(236,72,153,.20), transparent 62%),
        radial-gradient(280px 220px at 70% 10%, rgba(14,165,233,.22), transparent 60%),
        radial-gradient(260px 200px at 40% 70%, rgba(34,197,94,.14), transparent 58%),
        radial-gradient(240px 160px at 90% 60%, rgba(249,115,22,.14), transparent 56%);
      filter: saturate(1.1);
      pointer-events:none;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap:18px;
      align-items:start;
      position:relative;
    }

    .hero-left{
      padding: 6px 0;
    }

    .kicker{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding: 8px 12px;
      border-radius:999px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 12px 30px rgba(17,24,39,.08);
      color: rgba(17,24,39,.84);
      font-size:13px;
      margin-bottom:16px;
    }
    .kicker b{ font-weight:800; color: rgba(17,24,39,.95); }

    h1{
      font-size: clamp(26px, 4.1vw, 44px);
      line-height:1.15;
      margin: 0 0 12px;
      letter-spacing:-.5px;
    }
    .hero-desc{
      font-size: 15px;
      line-height:1.8;
      color: rgba(17,24,39,.76);
      margin: 0 0 18px;
      max-width: 60ch;
    }

    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
      margin-bottom: 14px;
    }

    .hero-meta{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
      color: rgba(17,24,39,.72);
      font-size: 13px;
      margin-top: 10px;
    }
    .meta-pill{
      display:flex; align-items:center; gap:10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
    }
    .meta-pill .dot{
      width:10px; height:10px; border-radius:50%;
      background: conic-gradient(from 180deg, var(--brand2), var(--brand1), var(--brand5), var(--brand4), var(--brand2));
      box-shadow: 0 0 0 6px rgba(14,165,233,.10);
    }
    .meta-pill b{ color: rgba(17,24,39,.95); }

    .hero-right{
      display:flex;
      flex-direction:column;
      gap:12px;
    }

    .glass-card{
      border-radius: var(--radius);
      background: rgba(255,255,255,.66);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 22px 58px rgba(17,24,39,.10);
      overflow:hidden;
      position:relative;
    }
    .glass-card::after{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(220px 120px at 10% 0%, rgba(236,72,153,.18), transparent 55%),
        radial-gradient(260px 160px at 90% 20%, rgba(14,165,233,.18), transparent 55%),
        radial-gradient(220px 160px at 60% 105%, rgba(34,197,94,.12), transparent 60%);
      pointer-events:none;
      mix-blend-mode: multiply;
      opacity:.9;
    }
    .glass-card > *{ position:relative; z-index:1; }

    .quick-panel{
      padding: 16px 16px 14px;
    }
    .panel-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .panel-title h2{
      font-size: 15px;
      margin:0;
      letter-spacing:.2px;
    }
    .panel-title .badge{
      display:inline-flex; align-items:center; gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.85);
      color: rgba(17,24,39,.82);
      font-size:12px;
      white-space:nowrap;
    }
    .badge i{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand1), var(--brand2));
      display:inline-block;
      box-shadow: 0 0 0 6px rgba(109,40,217,.12);
    }

    .metrics{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
      margin-top: 8px;
    }
    .metric{
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.78);
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 44px rgba(17,24,39,.12);
    }
    .metric .num{
      font-weight:900;
      font-size:18px;
      letter-spacing:-.3px;
    }
    .metric .label{
      margin-top:4px;
      color: rgba(17,24,39,.72);
      font-size:12.5px;
      line-height:1.3;
    }

    .model-row{
      padding: 14px 16px 16px;
      border-top: 1px solid rgba(17,24,39,.10);
      display:flex; flex-direction:column; gap:10px;
    }
    .model-row p{
      margin:0;
      color: rgba(17,24,39,.74);
      font-size:13px;
      line-height:1.6;
    }
    .chips{
      display:flex; flex-wrap:wrap; gap:8px;
    }
    .chip{
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      font-size:12px;
      color: rgba(17,24,39,.84);
      white-space:nowrap;
    }
    .chip strong{ font-weight:800; }

    section.block{
      padding: 34px 0 0;
    }

    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:16px;
      margin-bottom: 16px;
    }
    .section-head h2{
      margin:0;
      font-size: 22px;
      letter-spacing:-.2px;
    }
    .section-head p{
      margin:0;
      color: rgba(17,24,39,.72);
      line-height:1.7;
      font-size:14px;
      max-width: 58ch;
    }

    .cards-3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }

    .feature-card{
      padding: 16px 16px 14px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.70);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 16px 44px rgba(17,24,39,.08);
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
      position:relative;
      overflow:hidden;
    }
    .feature-card::before{
      content:"";
      position:absolute; inset:-1px;
      background:
        radial-gradient(260px 140px at 10% 0%, rgba(109,40,217,.14), transparent 60%),
        radial-gradient(240px 140px at 90% 20%, rgba(14,165,233,.12), transparent 62%);
      opacity:.95;
      pointer-events:none;
    }
    .feature-card > *{ position:relative; z-index:1; }

    .feature-card:hover{
      transform: translateY(-3px);
      box-shadow: 0 24px 70px rgba(17,24,39,.14);
      border-color: rgba(17,24,39,.16);
    }

    .feature-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .feature-icon{
      width:40px; height:40px; border-radius:14px;
      background:
        radial-gradient(14px 14px at 30% 20%, rgba(236,72,153,.40), transparent 62%),
        radial-gradient(18px 18px at 80% 30%, rgba(14,165,233,.35), transparent 62%),
        linear-gradient(135deg, rgba(109,40,217,.18), rgba(14,165,233,.10));
      border:1px solid rgba(17,24,39,.10);
      display:flex; align-items:center; justify-content:center;
      box-shadow: 0 18px 50px rgba(17,24,39,.10);
    }
    .feature-icon svg{ width:20px; height:20px; opacity:.95; }
    .feature-card h3{
      margin:0;
      font-size:15.5px;
      letter-spacing:-.1px;
    }
    .feature-card p{
      margin:6px 0 0;
      color: rgba(17,24,39,.74);
      line-height:1.75;
      font-size:13.5px;
    }

    .section-surface{
      margin-top: 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.58);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 24px 70px rgba(17,24,39,.08);
      padding: 16px;
    }

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

    .list-card{
      padding: 16px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(17,24,39,.10);
    }
    .list-card h3{
      margin:0 0 10px;
      font-size:15.5px;
      letter-spacing:-.1px;
    }
    .ul{
      margin:0;
      padding:0;
      list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .li{
      display:flex;
      gap:10px;
      align-items:flex-start;
    }
    .check{
      width:22px; height:22px; border-radius:8px;
      background: rgba(109,40,217,.12);
      border:1px solid rgba(109,40,217,.22);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top:2px;
    }
    .check svg{ width:14px; height:14px; color: rgba(109,40,217,.95); }
    .li b{ font-size:13.8px; }
    .li span{
      display:block;
      margin-top:2px;
      color: rgba(17,24,39,.72);
      font-size:13px;
      line-height:1.6;
    }

    .steps{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .step{
      padding: 16px 14px 14px;
      border-radius: var(--radius);
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
      position:relative;
      overflow:hidden;
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .step:hover{ transform: translateY(-3px); box-shadow: 0 24px 70px rgba(17,24,39,.12); }
    .step::after{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(220px 140px at 10% 10%, rgba(14,165,233,.12), transparent 60%),
        radial-gradient(240px 160px at 90% 0%, rgba(109,40,217,.12), transparent 62%);
      pointer-events:none;
      opacity:.9;
    }
    .step > *{ position:relative; z-index:1; }

    .step-num{
      display:inline-flex; align-items:center; gap:10px;
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.82);
      font-size:12px;
      color: rgba(17,24,39,.84);
      margin-bottom: 10px;
    }
    .step-num i{
      width:12px; height:12px; border-radius:50%;
      background: linear-gradient(135deg, var(--brand1), var(--brand2));
      display:inline-block;
      box-shadow: 0 0 0 6px rgba(14,165,233,.10);
    }
    .step h3{
      margin:0;
      font-size:15.5px;
    }
    .step p{
      margin:8px 0 0;
      color: rgba(17,24,39,.72);
      font-size:13.5px;
      line-height:1.7;
    }

    .compare-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 12px;
      align-items:start;
    }

    .rating-card{
      padding: 18px;
      border-radius: 22px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 24px 70px rgba(17,24,39,.08);
      position:relative;
      overflow:hidden;
    }
    .rating-card::before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(360px 200px at 10% 10%, rgba(236,72,153,.18), transparent 60%),
        radial-gradient(340px 240px at 90% 0%, rgba(14,165,233,.18), transparent 62%),
        radial-gradient(260px 180px at 50% 110%, rgba(34,197,94,.12), transparent 60%);
      pointer-events:none;
      opacity:.95;
    }
    .rating-card > *{ position:relative; z-index:1; }

    .rating-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
      margin-top:4px;
    }
    .star{
      width:18px; height:18px;
      color: rgba(249,115,22,.98);
      filter: drop-shadow(0 6px 18px rgba(249,115,22,.25));
    }
    .score{
      display:flex; flex-direction:column; align-items:flex-end; gap:6px;
    }
    .score b{
      font-size: 32px;
      letter-spacing:-1px;
      line-height:1;
    }
    .score span{
      color: rgba(17,24,39,.70);
      font-size: 13px;
    }

    table{
      width:100%;
      border-collapse: separate;
      border-spacing:0;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(17,24,39,.10);
      border-radius: 22px;
      overflow:hidden;
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
    }
    thead th{
      background: linear-gradient(135deg, rgba(109,40,217,.16), rgba(14,165,233,.12));
      color: rgba(17,24,39,.92);
      font-weight:800;
      font-size:13px;
      padding: 14px 12px;
      border-bottom:1px solid rgba(17,24,39,.10);
      text-align:left;
    }
    tbody td{
      padding: 14px 12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      color: rgba(17,24,39,.80);
      font-size:13.5px;
      vertical-align:top;
      line-height:1.6;
    }
    tbody tr:last-child td{ border-bottom:none; }
    .td-strong{ font-weight:800; }
    .tag-row{ display:flex; flex-wrap:wrap; gap:8px; }
    .tag{
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      font-size:12px;
      color: rgba(17,24,39,.80);
      white-space:nowrap;
    }
    .tag.good{
      border-color: rgba(34,197,94,.24);
      background: rgba(34,197,94,.10);
      color: rgba(21,128,61,.96);
    }
    .tag.mid{
      border-color: rgba(14,165,233,.24);
      background: rgba(14,165,233,.10);
      color: rgba(3,105,161,.98);
    }

    .form-card{
      padding: 18px;
      border-radius: 22px;
      background: rgba(255,255,255,.74);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 24px 70px rgba(17,24,39,.08);
    }

    .form-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .field label{
      font-size: 13px;
      color: rgba(17,24,39,.80);
      font-weight:700;
    }
    .field input, .field select, .field textarea{
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.92);
      color: rgba(17,24,39,.95);
      transition: box-shadow .15s ease, border-color .15s ease;
      outline:none;
    }
    .field textarea{ min-height: 110px; resize: vertical; }
    .field input:focus, .field select:focus, .field textarea:focus{
      border-color: rgba(14,165,233,.45);
      box-shadow: 0 0 0 4px rgba(14,165,233,.18);
    }
    .form-actions{
      display:flex; gap:12px; align-items:center; justify-content:space-between;
      margin-top: 14px;
      flex-wrap:wrap;
    }
    .privacy{
      color: rgba(17,24,39,.66);
      font-size: 12.5px;
      line-height:1.6;
      max-width: 56ch;
    }

    .reviews{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .review{
      padding: 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(17,24,39,.10);
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .review:hover{ transform: translateY(-3px); box-shadow: 0 24px 70px rgba(17,24,39,.12); }
    .review .who{
      display:flex; align-items:center; gap:12px; margin-bottom: 10px;
    }
    .avatar{
      width:42px; height:42px; border-radius:16px;
      background:
        radial-gradient(18px 18px at 25% 20%, rgba(236,72,153,.35), transparent 62%),
        radial-gradient(22px 22px at 80% 30%, rgba(14,165,233,.35), transparent 62%),
        linear-gradient(135deg, rgba(109,40,217,.18), rgba(14,165,233,.10));
      border:1px solid rgba(17,24,39,.10);
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      color: rgba(17,24,39,.86);
    }
    .who b{ font-size:13.8px; }
    .who span{ display:block; margin-top:3px; font-size:12.5px; color: rgba(17,24,39,.66); }
    .review p{
      margin:0;
      color: rgba(17,24,39,.76);
      line-height:1.75;
      font-size:13.5px;
    }
    .review .insight{
      margin-top: 12px;
      display:flex; gap:8px; flex-wrap:wrap;
    }
    .mini{
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.86);
      font-size:12px;
      color: rgba(17,24,39,.80);
      white-space:nowrap;
    }

    .cases{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .case{
      border-radius: 22px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
      overflow:hidden;
      transition: transform .16s ease, box-shadow .16s ease;
      display:flex; flex-direction:column;
    }
    .case:hover{ transform: translateY(-3px); box-shadow: 0 24px 70px rgba(17,24,39,.12); }
    .imgbox{
      padding: 12px 12px 0;
    }
    .imgframe{
      border-radius: 18px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.86);
      overflow:hidden;
    }
    .case img{
      width:100%;
      height:auto;
      object-fit:contain;
    }
    .case-body{
      padding: 14px 14px 16px;
      display:flex; flex-direction:column; gap:10px;
      flex:1;
    }
    .case-title{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .case-body h3{
      margin:0;
      font-size:15.5px;
      letter-spacing:-.1px;
    }
    .case-body p{
      margin:0;
      color: rgba(17,24,39,.74);
      line-height:1.75;
      font-size:13.5px;
    }
    .case-foot{
      margin-top:auto;
      display:flex; justify-content:space-between; align-items:center; gap:10px;
      flex-wrap:wrap;
    }

    .link{
      display:inline-flex; align-items:center; gap:8px;
      color: rgba(17,24,39,.9);
      font-weight:800;
      font-size:13.5px;
      padding: 8px 10px;
      border-radius: 14px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.80);
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .link:hover{ transform: translateY(-1px); box-shadow: 0 14px 34px rgba(17,24,39,.12); }
    .arrow{
      width:16px; height:16px;
    }
    .pill{
      padding: 8px 10px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.86);
      font-size:12px;
      color: rgba(17,24,39,.76);
      white-space:nowrap;
    }

    .article-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      align-items:start;
    }
    .article-card{
      padding: 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.72);
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
      overflow:hidden;
    }
    .article-card h3{ margin:0 0 10px; font-size:15.5px; }
    .article-list{
      margin:0; padding:0; list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .article-item{
      display:flex; justify-content:space-between; align-items:flex-start; gap:12px;
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.84);
      transition: transform .16s ease, box-shadow .16s ease;
    }
    .article-item:hover{ transform: translateY(-2px); box-shadow: 0 18px 46px rgba(17,24,39,.12); }
    .article-item b{
      font-size:13.8px;
      line-height:1.35;
    }
    .article-item span{
      color: rgba(17,24,39,.66);
      font-size:12.5px;
      white-space:nowrap;
      margin-top:2px;
    }

    .faq-wrap{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    details.faq{
      background: rgba(255,255,255,.74);
      border:1px solid rgba(17,24,39,.10);
      border-radius: 22px;
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
      padding: 12px 14px;
      overflow:hidden;
      transition: transform .16s ease, box-shadow .16s ease, border-color .16s ease;
    }
    details.faq:hover{ transform: translateY(-2px); box-shadow: 0 22px 66px rgba(17,24,39,.12); border-color: rgba(17,24,39,.16); }
    details.faq[open]{ border-color: rgba(14,165,233,.35); box-shadow: 0 26px 78px rgba(14,165,233,.14); }
    summary{
      cursor:pointer;
      list-style:none;
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:12px;
      padding: 8px 4px;
      user-select:none;
    }
    summary::-webkit-details-marker{ display:none; }
    .q{
      font-weight:900;
      font-size:13.8px;
      line-height:1.5;
      color: rgba(17,24,39,.92);
      padding-right: 8px;
    }
    .chev{
      width:18px; height:18px;
      border-radius:10px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.88);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .18s ease;
      margin-top: 2px;
    }
    details[open] .chev{ transform: rotate(180deg); }
    .a{
      color: rgba(17,24,39,.74);
      font-size:13.5px;
      line-height:1.75;
      padding: 0 4px 12px;
    }

    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
      padding: 14px 16px 16px;
      border-radius: 22px;
      background: rgba(255,255,255,.74);
      border:1px solid rgba(17,24,39,.10);
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
    }
    .tagcloud a{
      display:inline-flex;
      align-items:center;
      gap:10px;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.86);
      font-size:13px;
      color: rgba(17,24,39,.80);
      transition: transform .16s ease, box-shadow .16s ease;
      white-space:nowrap;
    }
    .tagcloud a:hover{ transform: translateY(-2px); box-shadow: 0 18px 46px rgba(17,24,39,.12); }
    .tagcloud a i{
      width:10px; height:10px; border-radius:50%;
      background: conic-gradient(from 180deg, var(--brand1), var(--brand2), var(--brand3), var(--brand4), var(--brand5), var(--brand1));
      box-shadow: 0 0 0 6px rgba(109,40,217,.10);
    }

    .timeline{
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    .titem{
      display:flex; gap:12px;
      padding: 14px 14px;
      border-radius: 22px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: 0 16px 44px rgba(17,24,39,.07);
    }
    .tbadge{
      width:46px; height:46px; border-radius:18px;
      background:
        radial-gradient(18px 18px at 25% 20%, rgba(236,72,153,.35), transparent 62%),
        radial-gradient(22px 22px at 80% 30%, rgba(14,165,233,.35), transparent 62%),
        linear-gradient(135deg, rgba(109,40,217,.18), rgba(14,165,233,.10));
      border:1px solid rgba(17,24,39,.10);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      font-weight:900;
      color: rgba(17,24,39,.86);
    }
    .tcontent b{ display:block; font-size:14.2px; }
    .tcontent span{
      display:block; margin-top:6px;
      color: rgba(17,24,39,.72);
      line-height:1.7;
      font-size:13.5px;
    }

    footer{
      margin-top: 24px;
      background:
        radial-gradient(900px 500px at 20% 0%, rgba(109,40,217,.18), transparent 60%),
        radial-gradient(860px 520px at 90% 15%, rgba(14,165,233,.18), transparent 55%),
        linear-gradient(180deg, rgba(17,24,39,.92), rgba(17,24,39,.98));
      color:#e5e7eb;
      border-top: 1px solid rgba(255,255,255,.10);
    }
    .footer-inner{
      padding: 26px 0 18px;
    }
    .footer-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px; flex-wrap:wrap;
      margin-bottom: 14px;
    }
    .foot-brand{
      display:flex; gap:12px; align-items:flex-start;
      max-width: 520px;
    }
    .foot-logo{
      width:44px; height:44px; border-radius:16px;
      background: rgba(255,255,255,.08);
      border:1px solid rgba(255,255,255,.12);
      display:flex; align-items:center; justify-content:center;
      overflow:hidden;
    }
    .foot-logo img{ width:100%; height:auto; }
    .foot-brand b{
      display:block;
      color:#fff;
      font-size:14.5px;
    }
    .foot-brand p{
      margin:6px 0 0;
      color: rgba(229,231,235,.85);
      line-height:1.7;
      font-size:13.5px;
    }

    .footer-cols{
      display:flex; gap:16px; flex-wrap:wrap;
      align-items:flex-start;
    }
    .fcol{
      min-width: 160px;
    }
    .fcol h3{
      margin:0 0 10px;
      font-size:13px;
      letter-spacing:.2px;
      color:#fff;
    }
    .fcol a, .fcol span{
      display:block;
      padding: 7px 0;
      color: rgba(229,231,235,.84);
      font-size:13.5px;
      line-height:1.4;
    }
    .fcol a:hover{ color:#fff; }

    .footer-links{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      padding: 12px 0 10px;
      border-top: 1px solid rgba(255,255,255,.12);
      margin-top: 14px;
    }
    .footer-links a{
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(255,255,255,.14);
      background: rgba(255,255,255,.06);
      color: rgba(229,231,235,.92);
      font-size:13px;
      transition: transform .16s ease, background .16s ease;
      white-space:nowrap;
    }
    .footer-links a:hover{ transform: translateY(-2px); background: rgba(255,255,255,.10); color:#fff; }

    .copy{
      border-top: 1px solid rgba(255,255,255,.10);
      padding-top: 14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color: rgba(229,231,235,.80);
      font-size:12.5px;
    }

    .float-cs{
      position:fixed;
      right: 16px;
      bottom: 16px;
      z-index: 60;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-btn{
      display:flex; align-items:center; gap:10px;
      padding: 12px 14px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 20px 60px rgba(17,24,39,.18);
      cursor:pointer;
      transition: transform .16s ease, box-shadow .16s ease, background .16s ease;
      user-select:none;
    }
    .float-btn:hover{ transform: translateY(-2px); box-shadow: 0 26px 78px rgba(17,24,39,.22); background: rgba(255,255,255,.96); }
    .float-btn:focus-visible{ outline:3px solid var(--focus); outline-offset:2px; }
    .float-btn b{ font-size:13.5px; }
    .float-btn span{ display:block; color: rgba(17,24,39,.66); font-size:12.5px; margin-top:2px; }

    .qrcode{
      width: 220px;
      border-radius: 22px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 28px 90px rgba(17,24,39,.22);
      overflow:hidden;
      transform-origin: 90% 100%;
      animation: popIn .18s ease both;
      display:none;
    }
    .qrcode.show{ display:block; }
    @keyframes popIn{
      from{ transform: scale(.98); opacity:.0; }
      to{ transform: scale(1); opacity:1; }
    }
    .qrcode-head{
      padding: 12px 14px;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      border-bottom: 1px solid rgba(17,24,39,.10);
      background: linear-gradient(135deg, rgba(109,40,217,.10), rgba(14,165,233,.08));
    }
    .qrcode-head b{ font-size:13.5px; }
    .qrcode-close{
      width:34px; height:34px; border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.9);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .16s ease;
    }
    .qrcode-close:hover{ transform: translateY(-1px); }
    .qrcode-body{
      padding: 12px 14px 14px;
    }
    .qrcode-body img{
      width: 100%;
      height:auto;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.86);
    }
    .qrcode-foot{
      padding: 10px 14px 14px;
      color: rgba(17,24,39,.72);
      font-size:12.5px;
      line-height:1.6;
    }

    .backtop{
      position:fixed;
      right:16px;
      bottom: 140px;
      z-index: 59;
      width:44px; height:44px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.86);
      box-shadow: 0 20px 60px rgba(17,24,39,.18);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .16s ease, opacity .16s ease;
      opacity:0;
      pointer-events:none;
    }
    .backtop.show{
      opacity:1;
      pointer-events:auto;
    }
    .backtop:hover{ transform: translateY(-2px); }
    .backtop svg{ width:18px; height:18px; }

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

    @media (max-width: 980px){
      .hero-grid{ grid-template-columns: 1fr; }
      .menu{ display:none; }
      .mobile-toggle{ display:inline-flex; align-items:center; justify-content:center; }
      .mobile-menu{ display:block; }
      header{ position:sticky; }
      .mobile-menu[data-open="false"]{ display:none; }
      .mobile-menu[data-open="true"]{ display:block; }

      .cards-3{ grid-template-columns: 1fr; }
      .steps{ grid-template-columns: 1fr 1fr; }
      .compare-grid{ grid-template-columns: 1fr; }
      .reviews{ grid-template-columns: 1fr; }
      .cases{ grid-template-columns: 1fr; }
      .article-grid{ grid-template-columns: 1fr; }
      .faq-wrap{ grid-template-columns: 1fr; }
      .two-col{ grid-template-columns: 1fr; }
      .form-grid{ grid-template-columns: 1fr; }
    }

    @media (prefers-reduced-motion: reduce){
      .reveal{ transition:none; opacity:1; transform:none; }
      *{ scroll-behavior:auto !important; }
      .metric, .feature-card, .step, .review, .case, .article-item{ transition:none; }
    }