:root{
      --bg0:#ffffff;
      --bg1:#fbfbfe;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5b6776;
      --line:rgba(17,24,39,.10);
      --shadow: 0 16px 40px rgba(17,24,39,.08);
      --shadow2: 0 10px 24px rgba(17,24,39,.10);
      --radius: 18px;
      --radius2: 14px;
      --brand1:#6d28d9;
      --brand2:#2563eb;
      --brand3:#06b6d4;
      --brand4:#22c55e;
      --brand5:#f97316;
      --focus: rgba(37,99,235,.25);
      --btnText:#071225;
      --btnBg: linear-gradient(135deg, rgba(109,40,217,.95), rgba(37,99,235,.95) 48%, rgba(6,182,212,.95));
      --btnBg2: linear-gradient(135deg, rgba(249,115,22,.95), rgba(249,115,22,.75) 52%, rgba(34,197,94,.80));
      --chipBg: rgba(37,99,235,.10);
      --chipBorder: rgba(37,99,235,.18);
      --heroGlow: radial-gradient(900px 500px at 20% 10%, rgba(109,40,217,.18), transparent 58%),
                  radial-gradient(800px 420px at 70% 10%, rgba(37,99,235,.16), transparent 55%),
                  radial-gradient(850px 520px at 50% 70%, rgba(6,182,212,.12), transparent 60%);
      --sectionGlow: radial-gradient(700px 420px at 10% 30%, rgba(249,115,22,.12), transparent 55%),
                     radial-gradient(700px 420px at 90% 30%, rgba(109,40,217,.12), transparent 55%);
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans SC", Arial, sans-serif;
      background: linear-gradient(180deg, var(--bg0), var(--bg1));
      color:var(--text);
      overflow-x:hidden;
    }

    .container{
      width:100%;
      max-width:1120px;
      padding:0 18px;
      margin:0 auto;
    }

    .skip-link{
      position:absolute; left:-999px; top:auto; width:1px; height:1px; overflow:hidden;
      background:#000; color:#fff; padding:10px;
      z-index:9999;
    }
    .skip-link:focus{left:18px; top:18px; width:auto; height:auto; border-radius:10px}

    header{
      position:sticky; top:0; z-index:50;
      backdrop-filter: 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;
      gap:14px; padding:12px 0;
    }
    .brand{
      display:flex; align-items:center; gap:10px; min-width: 180px;
    }
    .ai-page-logo{
      width:34px; height:34px; object-fit:contain;
      border-radius:10px;
      background: linear-gradient(135deg, rgba(109,40,217,.12), rgba(37,99,235,.10));
      padding:6px;
      box-shadow: inset 0 0 0 1px rgba(37,99,235,.18);
    }
    .brand-title{
      display:flex; flex-direction:column; line-height:1.1;
    }
    .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:10px;
    }
    .menu{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
      justify-content:flex-end;
    }
    .menu a{
      text-decoration:none;
      color: rgba(31,41,55,.86);
      font-weight:600;
      font-size:13px;
      padding:9px 10px;
      border-radius:12px;
      border:1px solid transparent;
      transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .menu a:hover{
      background: rgba(37,99,235,.08);
      border-color: rgba(37,99,235,.16);
      transform: translateY(-1px);
    }

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

    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:10px;
      border-radius: 14px;
      padding:11px 14px;
      border:1px solid rgba(17,24,39,.12);
      background:#fff;
      color: var(--text);
      font-weight:800;
      text-decoration:none;
      transition: transform .18s ease, box-shadow .18s ease, background-color .18s ease, border-color .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:focus{outline:none; box-shadow:0 0 0 4px var(--focus)}
    .btn:hover{transform: translateY(-1px); box-shadow: 0 12px 26px rgba(17,24,39,.12)}
    .btn:active{transform: translateY(0px); box-shadow:none}

    .btn-primary{
      border-color: rgba(109,40,217,.22);
      background: var(--btnBg);
      color: #fff;
      box-shadow: 0 14px 32px rgba(37,99,235,.18);
    }
    .btn-primary:hover{box-shadow: 0 18px 42px rgba(37,99,235,.26)}
    .btn-ghost{
      border-color: rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
    }

    .icon{
      width:18px; height:18px; display:inline-block;
    }
    .icon svg{width:100%; height:100%}

    .hamburger{
      display:none;
      width:44px; height:44px; border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.85);
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .hamburger:focus{outline:none; box-shadow:0 0 0 4px var(--focus)}
    .hamburger:hover{transform: translateY(-1px); box-shadow: 0 12px 24px rgba(17,24,39,.12)}
    .hamburger .bars{
      width:18px; height:12px; margin:0 auto;
      position:relative;
    }
    .hamburger .bars span{
      position:absolute; left:0; right:0; height:2px; border-radius:999px;
      background: rgba(31,41,55,.86);
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger .bars span:nth-child(1){top:0}
    .hamburger .bars span:nth-child(2){top:5px}
    .hamburger .bars span:nth-child(3){top:10px}

    .mobile-panel{
      display:none;
      padding:10px 0 16px;
    }
    .mobile-panel .card{
      border:1px solid rgba(17,24,39,.10);
      border-radius:16px;
      background: rgba(255,255,255,.92);
      box-shadow: 0 18px 40px rgba(17,24,39,.10);
      padding:12px;
    }
    .mobile-panel a{
      display:flex; align-items:center; justify-content:space-between;
      padding:12px 12px; border-radius:14px;
      text-decoration:none; color: rgba(31,41,55,.92);
      font-weight:700;
      border:1px solid transparent;
      background: transparent;
      transition: background-color .2s ease, border-color .2s ease;
    }
    .mobile-panel a:hover{
      background: rgba(37,99,235,.08);
      border-color: rgba(37,99,235,.16);
    }
    .mobile-panel .row{
      display:grid; grid-template-columns:1fr 1fr; gap:10px;
    }

    main{position:relative}
    .hero{
      position:relative;
      overflow:hidden;
      background: var(--heroGlow);
      border-bottom: 1px solid rgba(17,24,39,.07);
    }
    .hero .hero-inner{
      padding: 34px 0 26px;
      display:grid;
      grid-template-columns: 1.08fr .92fr;
      gap:18px;
      align-items:start;
    }

    .badge{
      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,.82);
      box-shadow: 0 10px 26px rgba(17,24,39,.08);
      color: rgba(31,41,55,.92);
      font-weight:800;
      font-size:13px;
      letter-spacing:.2px;
      width: fit-content;
      max-width:100%;
    }
    .badge .dot{
      width:10px; height:10px; border-radius:999px;
      background: conic-gradient(from 180deg, var(--brand1), var(--brand2), var(--brand3), var(--brand4), var(--brand5), var(--brand1));
      box-shadow: 0 0 0 4px rgba(37,99,235,.10);
      flex:0 0 auto;
    }

    h1{
      margin:14px 0 10px;
      font-size: 34px;
      letter-spacing: -0.6px;
      line-height:1.15;
    }
    .hero p{
      margin:0;
      color: var(--muted);
      font-weight:650;
      line-height:1.75;
      font-size:14.5px;
      max-width: 58ch;
    }

    .hero-ctas{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
      margin-top:16px;
    }

    .spark{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-top:16px;
    }
    .chip{
      display:inline-flex; align-items:center; gap:8px;
      padding:9px 11px;
      border-radius:999px;
      background: rgba(37,99,235,.08);
      border: 1px solid rgba(37,99,235,.14);
      color: rgba(31,41,55,.90);
      font-weight:800;
      font-size:12.5px;
    }
    .chip b{
      font-weight:900;
      color: rgba(31,41,55,.95);
    }
    .chip .mini-dot{
      width:8px; height:8px; border-radius:999px;
      background: linear-gradient(135deg, rgba(109,40,217,.95), rgba(6,182,212,.95));
      box-shadow: 0 0 0 3px rgba(109,40,217,.12);
    }

    .hero-right{
      padding-top: 6px;
    }
    .glass{
      border-radius: var(--radius);
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: var(--shadow);
      overflow:hidden;
    }
    .glass .topline{
      display:flex; align-items:center; justify-content:space-between;
      padding:14px 16px;
      border-bottom: 1px solid rgba(17,24,39,.08);
      background: linear-gradient(135deg, rgba(109,40,217,.10), rgba(37,99,235,.06));
    }
    .glass .topline .title{
      display:flex; align-items:center; gap:10px;
      font-weight:900;
      letter-spacing:.2px;
    }
    .glass .topline .pill{
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.85);
      color: rgba(31,41,55,.9);
      font-weight:900;
      white-space:nowrap;
    }

    .data-grid{
      padding:14px 16px 16px;
      display:grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap:12px;
    }
    .data-card{
      border-radius: 14px;
      background: rgba(255,255,255,.92);
      border: 1px solid rgba(17,24,39,.10);
      padding:12px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      position:relative;
      overflow:hidden;
      min-height: 92px;
    }
    .data-card:before{
      content:"";
      position:absolute; inset:-2px;
      background: radial-gradient(200px 120px at 10% 0%, rgba(109,40,217,.18), transparent 55%),
                  radial-gradient(200px 120px at 90% 0%, rgba(6,182,212,.14), transparent 55%);
      opacity:.65;
      pointer-events:none;
    }
    .data-card:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 34px rgba(17,24,39,.12);
      border-color: rgba(37,99,235,.18);
    }
    .data-card .k{
      position:relative;
      font-weight:900;
      font-size:22px;
      letter-spacing:-.6px;
      color: rgba(31,41,55,.96);
    }
    .data-card .v{
      position:relative;
      margin-top:6px;
      font-size:12.5px;
      color: var(--muted);
      font-weight:750;
      line-height:1.5;
    }

    .hero-list{
      padding: 0 16px 16px;
      display:flex; flex-direction:column; gap:10px;
    }
    .hero-step{
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.9);
      padding:12px;
      display:flex; align-items:flex-start; gap:12px;
    }
    .num{
      width:28px; height:28px;
      border-radius:10px;
      background: linear-gradient(135deg, rgba(109,40,217,.16), rgba(37,99,235,.12));
      border: 1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight:1000;
      color: rgba(31,41,55,.94);
      flex:0 0 auto;
      margin-top:2px;
    }
    .hero-step strong{
      display:block; font-size:13.5px; letter-spacing:.1px;
    }
    .hero-step span{
      display:block; margin-top:4px;
      color: var(--muted);
      font-weight:720; font-size:12.8px; line-height:1.55;
    }

    section{padding: 26px 0}
    .section-title{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom: 14px;
    }
    .section-title h2{
      margin:0;
      font-size: 22px;
      letter-spacing:-.35px;
      line-height:1.2;
    }
    .section-title p{
      margin:0;
      color: var(--muted);
      font-weight:700;
      line-height:1.6;
      font-size:13.5px;
      max-width: 56ch;
    }

    .grid-3{
      display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap:14px;
      align-items:stretch;
    }
    .grid-4{
      display:grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap:12px;
      align-items:stretch;
    }
    .card{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 10px 26px rgba(17,24,39,.06);
      padding:14px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .card:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 38px rgba(17,24,39,.10);
      border-color: rgba(37,99,235,.16);
    }
    .kicker{
      display:flex; align-items:center; gap:10px;
      margin-bottom:8px;
    }
    .kicker i{
      width:34px; height:34px; border-radius:14px;
      background: linear-gradient(135deg, rgba(109,40,217,.12), rgba(37,99,235,.10), rgba(6,182,212,.08));
      border: 1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      font-style:normal;
      flex:0 0 auto;
    }
    .kicker i svg{width:18px; height:18px}
    .kicker strong{font-size:14px; letter-spacing:.1px}
    .card p{
      margin:0;
      color: var(--muted);
      font-weight:720;
      line-height:1.7;
      font-size:13.3px;
    }
    .card ul{
      margin:0; padding-left: 18px;
    }
    .card li{
      margin:8px 0 0;
      color: var(--muted);
      font-weight:720;
      line-height:1.6;
      font-size:13.2px;
    }

    .steps{
      display:grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap:12px;
      align-items:stretch;
    }
    .step{
      padding:14px;
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.94), rgba(255,255,255,.86));
      position:relative;
      overflow:hidden;
    }
    .step:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(260px 120px at 20% 0%, rgba(109,40,217,.16), transparent 55%),
        radial-gradient(240px 110px at 90% 0%, rgba(6,182,212,.12), transparent 60%);
      opacity:.6;
      pointer-events:none;
    }
    .step .top{
      position:relative;
      display:flex; align-items:flex-start; gap:12px;
    }
    .step .badge2{
      width:34px; height:34px;
      border-radius:14px;
      background: rgba(37,99,235,.10);
      border:1px solid rgba(37,99,235,.18);
      display:flex; align-items:center; justify-content:center;
      font-weight:1000;
      color: rgba(31,41,55,.95);
      flex:0 0 auto;
    }
    .step strong{position:relative; display:block; font-size:14px; letter-spacing:.1px}
    .step span{position:relative; display:block; margin-top:6px; color: var(--muted); font-weight:720; line-height:1.65; font-size:13.2px}

    .compare-wrap{
      background: var(--sectionGlow);
      border-top: 1px solid rgba(17,24,39,.06);
      border-bottom: 1px solid rgba(17,24,39,.06);
    }
    .compare-card{
      padding:16px;
      border-radius: var(--radius);
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.88);
      box-shadow: var(--shadow2);
    }
    .compare-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:16px;
      padding-bottom:12px; margin-bottom: 12px;
      border-bottom: 1px solid rgba(17,24,39,.08);
    }
    .rating{
      display:flex; flex-direction:column; gap:6px;
      align-items:flex-end;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
    }
    .star{
      width:20px; height:20px;
    }
    .rating .score{
      font-weight:1000; font-size:18px; letter-spacing:-.3px;
    }
    .rating .max{
      color: var(--muted); font-weight:800; font-size:12.5px;
    }
    .compare-head h3{
      margin:0;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .compare-head p{
      margin:6px 0 0;
      color: var(--muted);
      font-weight:720;
      line-height:1.65;
      font-size:13.2px;
      max-width: 60ch;
    }

    .table-scroll{
      overflow:auto;
      -webkit-overflow-scrolling: touch;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.10);
      background:#fff;
    }
    table{
      width:100%;
      border-collapse:collapse;
      min-width: 720px;
    }
    th, td{
      padding:12px 12px;
      border-bottom:1px solid rgba(17,24,39,.08);
      text-align:left;
      vertical-align:top;
      font-size:13.2px;
      color: rgba(31,41,55,.94);
      font-weight:650;
    }
    th{
      background: linear-gradient(135deg, rgba(109,40,217,.10), rgba(37,99,235,.07));
      position:sticky;
      top:0;
      z-index:1;
      font-weight:900;
    }
    td .muted{
      color: var(--muted);
      font-weight:720;
      line-height:1.55;
    }
    .tag-ok{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius: 999px;
      border:1px solid rgba(34,197,94,.18);
      background: rgba(34,197,94,.10);
      font-weight:900;
      color: rgba(22,101,52,.95);
      white-space:nowrap;
    }
    .tag-mid{
      display:inline-flex; align-items:center; gap:8px;
      padding:8px 10px;
      border-radius: 999px;
      border:1px solid rgba(249,115,22,.18);
      background: rgba(249,115,22,.10);
      font-weight:900;
      color: rgba(124,45,18,.95);
      white-space:nowrap;
    }

    .dual{
      display:grid;
      grid-template-columns: 1.02fr .98fr;
      gap:14px;
      align-items:start;
    }

    .list-grid{
      display:grid;
      grid-template-columns: 1fr;
      gap:10px;
    }
    .checkline{
      display:flex; gap:12px; align-items:flex-start;
      padding:12px;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
    }
    .check{
      width:26px; height:26px;
      border-radius:10px;
      background: rgba(34,197,94,.10);
      border:1px solid rgba(34,197,94,.18);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      margin-top:2px;
    }
    .check svg{width:16px; height:16px}
    .checkline strong{display:block; font-size:13.8px}
    .checkline span{display:block; margin-top:4px; color: var(--muted); font-weight:720; font-size:13.1px; line-height:1.6}

    .accordion{
      display:flex; flex-direction:column; gap:10px;
    }
    details{
      border-radius: 16px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 10px 24px rgba(17,24,39,.05);
      overflow:hidden;
      transition: border-color .2s ease, box-shadow .2s ease;
    }
    details[open]{
      border-color: rgba(37,99,235,.18);
      box-shadow: 0 18px 36px rgba(17,24,39,.10);
    }
    summary{
      list-style:none;
      cursor:pointer;
      padding:14px 14px;
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px;
      user-select:none;
      font-weight:900;
      letter-spacing:-.15px;
      font-size:14px;
    }
    summary::-webkit-details-marker{display:none}
    .sum-right{
      display:flex; align-items:center; gap:12px; flex:0 0 auto;
      color: var(--muted);
      font-weight:900;
      font-size:12.5px;
      margin-top:2px;
    }
    .caret{
      width:22px; height:22px;
      border-radius:10px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.9);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease, background-color .2s ease, border-color .2s ease;
    }
    details[open] .caret{transform: rotate(180deg); border-color: rgba(37,99,235,.18); background: rgba(37,99,235,.08)}
    .answer{
      padding: 0 14px 14px;
      color: var(--muted);
      font-weight:720;
      line-height:1.75;
      font-size:13.3px;
    }

    .reviews{
      display:grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap:12px;
    }
    blockquote{
      margin:0;
      padding:14px;
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 10px 26px rgba(17,24,39,.06);
      position:relative;
      overflow:hidden;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 184px;
    }
    blockquote:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(280px 140px at 10% 0%, rgba(109,40,217,.16), transparent 55%),
        radial-gradient(240px 130px at 90% 0%, rgba(6,182,212,.12), transparent 60%);
      opacity:.55;
      pointer-events:none;
    }
    blockquote:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 38px rgba(17,24,39,.10);
      border-color: rgba(37,99,235,.16);
    }
    .quote-top{
      position:relative;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .avatar{
      width:40px; height:40px; border-radius:16px;
      border:1px solid rgba(17,24,39,.10);
      background: linear-gradient(135deg, rgba(37,99,235,.12), rgba(109,40,217,.10));
      display:flex; align-items:center; justify-content:center;
      font-weight:1000; color: rgba(31,41,55,.92);
      flex:0 0 auto;
    }
    .who{
      position:relative;
      display:flex; flex-direction:column;
      gap:2px;
      line-height:1.2;
    }
    .who strong{font-size:13.8px}
    .who span{font-size:12.5px; color: var(--muted); font-weight:800}
    .quote-stars{
      position:relative;
      display:flex; gap:4px; align-items:center;
      color: rgba(249,115,22,.95);
      font-weight:1000;
      font-size:12px;
    }
    .quote-text{
      position:relative;
      color: var(--muted);
      font-weight:720;
      font-size:13.2px;
      line-height:1.75;
      margin:0;
    }

    .case-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:14px;
      align-items:start;
    }
    .poster-grid{
      display:grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap:12px;
    }
    .poster{
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      overflow:hidden;
      box-shadow: 0 10px 26px rgba(17,24,39,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 260px;
      display:flex; flex-direction:column;
    }
    .poster:hover{
      transform: translateY(-3px);
      border-color: rgba(37,99,235,.16);
      box-shadow: 0 18px 38px rgba(17,24,39,.10);
    }
    .poster-media{
      padding:12px;
    }
    .poster-media .imgbox{
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: linear-gradient(135deg, rgba(109,40,217,.06), rgba(37,99,235,.04));
      overflow:hidden;
    }
    .poster img{
      width:100%; height:auto; display:block;
      object-fit:cover;
    }
    .poster-body{
      padding:12px 14px 14px;
      display:flex; flex-direction:column; gap:8px;
    }
    .poster-body strong{font-size:14px; letter-spacing:-.1px}
    .poster-body p{margin:0; color: var(--muted); font-weight:720; line-height:1.65; font-size:13.2px}
    .poster-tags{
      display:flex; gap:8px; flex-wrap:wrap;
      margin-top:2px;
    }
    .ptag{
      font-size:12px; font-weight:900; color: rgba(31,41,55,.88);
      padding:7px 9px;
      border-radius: 999px;
      border:1px solid rgba(37,99,235,.14);
      background: rgba(37,99,235,.08);
      white-space:nowrap;
    }

    .side-stack{
      display:flex; flex-direction:column; gap:12px;
    }
    .side-card{
      padding:14px;
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 10px 26px rgba(17,24,39,.06);
    }
    .side-card h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.2px;
    }
    .side-card p{
      margin:8px 0 0;
      color: var(--muted);
      font-weight:720;
      line-height:1.7;
      font-size:13.2px;
    }
    .side-card .mini-actions{
      margin-top:12px;
      display:flex; gap:10px; flex-wrap:wrap;
    }

    .article-list{
      display:grid; grid-template-columns: 1fr 1fr; gap:12px;
      align-items:start;
    }
    .article{
      padding:14px;
      border-radius: var(--radius2);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 10px 26px rgba(17,24,39,.06);
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .article:hover{
      transform: translateY(-3px);
      box-shadow: 0 18px 38px rgba(17,24,39,.10);
      border-color: rgba(37,99,235,.16);
    }
    .article .meta{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      color: var(--muted);
      font-weight:900;
      font-size:12.5px;
      margin-bottom:8px;
    }
    .article a{
      text-decoration:none;
      color: rgba(31,41,55,.95);
      font-weight:1000;
      letter-spacing:-.2px;
      font-size:14.2px;
      display:block;
      line-height:1.35;
    }
    .article p{
      margin:8px 0 0;
      color: var(--muted);
      font-weight:720;
      line-height:1.7;
      font-size:13.2px;
    }

    .form-card{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.84));
      box-shadow: 0 18px 40px rgba(17,24,39,.08);
      padding:16px;
      overflow:hidden;
      position:relative;
    }
    .form-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(720px 260px at 10% 0%, rgba(109,40,217,.16), transparent 60%),
        radial-gradient(620px 240px at 95% 0%, rgba(6,182,212,.12), transparent 55%);
      opacity:.55;
      pointer-events:none;
    }
    .form-card .inner{position:relative}
    .form-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom:12px;
    }
    .form-head h3{
      margin:0;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .form-head p{
      margin:6px 0 0;
      color: var(--muted);
      font-weight:720;
      line-height:1.65;
      font-size:13.2px;
      max-width: 52ch;
    }

    form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      margin-top:10px;
    }
    label{
      display:flex; flex-direction:column; gap:8px;
      font-weight:900;
      color: rgba(31,41,55,.92);
      font-size:12.8px;
      letter-spacing:.1px;
    }
    input, select, textarea{
      width:100%;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.92);
      padding:12px 12px;
      color: rgba(31,41,55,.95);
      font-weight:750;
      font-size:14px;
      outline:none;
      transition: box-shadow .2s ease, border-color .2s ease;
    }
    textarea{min-height:104px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(37,99,235,.26);
      box-shadow: 0 0 0 4px rgba(37,99,235,.16);
    }
    .span2{grid-column: 1 / -1}
    .form-actions{
      display:flex; gap:12px; align-items:center; flex-wrap:wrap;
      margin-top:2px;
    }
    .hint{
      color: var(--muted);
      font-weight:720;
      font-size:12.8px;
      line-height:1.6;
      margin:0;
    }

    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top:10px;
    }
    .cloud{
      padding:9px 11px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      font-weight:900;
      font-size:12.6px;
      color: rgba(31,41,55,.90);
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .cloud:hover{
      transform: translateY(-2px);
      border-color: rgba(37,99,235,.18);
      box-shadow: 0 14px 26px rgba(17,24,39,.10);
    }

    .timeline{
      display:flex; flex-direction:column; gap:10px;
    }
    .titem{
      display:flex; gap:12px; align-items:flex-start;
      padding:12px;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
    }
    .tbar{
      width:10px;
      border-radius: 999px;
      background: linear-gradient(180deg, rgba(109,40,217,.75), rgba(37,99,235,.65), rgba(6,182,212,.55));
      box-shadow: 0 0 0 5px rgba(37,99,235,.10);
      flex:0 0 auto;
      margin-top:4px;
      height:44px;
    }
    .titem strong{display:block; font-size:13.8px}
    .titem span{display:block; margin-top:4px; color: var(--muted); font-weight:720; font-size:13.1px; line-height:1.6}

    .footer{
      background: linear-gradient(180deg, rgba(255,255,255,.45), rgba(255,255,255,.92));
      border-top:1px solid rgba(17,24,39,.08);
      padding: 18px 0 22px;
    }
    .footer-grid{
      display:grid; grid-template-columns: 1.15fr .85fr; gap:14px; align-items:start;
    }
    .foot-left{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      padding:16px;
      box-shadow: 0 12px 30px rgba(17,24,39,.06);
    }
    .foot-left .top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .foot-left h3{margin:0; font-size:16px; letter-spacing:-.2px}
    .foot-left p{
      margin:8px 0 0;
      color: var(--muted);
      font-weight:720;
      line-height:1.7;
      font-size:13.2px;
      max-width: 62ch;
    }
    .foot-actions{
      margin-top:12px;
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .foot-right{
      border-radius: var(--radius);
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      padding:16px;
      box-shadow: 0 12px 30px rgba(17,24,39,.06);
    }
    .foot-right h3{margin:0; font-size:15.5px; letter-spacing:-.2px}
    .links{
      display:flex; flex-direction:column; gap:8px; margin-top:10px;
    }
    .links a{
      text-decoration:none;
      color: rgba(31,41,55,.95);
      font-weight:850;
      font-size:13.2px;
      padding:10px 10px;
      border-radius: 12px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.8);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background-color .18s ease;
      display:flex; align-items:center; justify-content:space-between; gap:10px;
    }
    .links a:hover{
      transform: translateY(-2px);
      border-color: rgba(37,99,235,.18);
      box-shadow: 0 16px 30px rgba(17,24,39,.10);
      background: rgba(37,99,235,.06);
    }

    .bottom-bar{
      margin-top:14px;
      display:flex; align-items:center; justify-content:space-between; gap:10px; flex-wrap:wrap;
      color: var(--muted);
      font-weight:750;
      font-size:12.8px;
      padding: 0 4px;
    }
    .bottom-bar .small{
      display:flex; gap:10px; align-items:center; flex-wrap:wrap;
    }
    .separator{width:1px; height:12px; background: rgba(17,24,39,.14); display:inline-block}

    .float-customer{
      position:fixed;
      right:14px;
      bottom:14px;
      z-index:60;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-btn{
      display:flex; align-items:center; gap:10px;
      border-radius: 18px;
      padding:12px 14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 20px 44px rgba(17,24,39,.14);
      cursor:pointer;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
      user-select:none;
      max-width: 260px;
    }
    .float-btn:hover{transform: translateY(-3px); border-color: rgba(37,99,235,.18)}
    .float-btn strong{font-size:13.4px; letter-spacing:-.1px}
    .float-btn span{font-size:12.6px; color: var(--muted); font-weight:780; white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width:150px}
    .float-qrcode{
      position:relative;
      display:none;
      margin-bottom:8px;
    }
    .float-qrcode .popover{
      width:210px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.96);
      box-shadow: 0 26px 60px rgba(17,24,39,.18);
      padding:12px;
    }
    .float-qrcode .popover .head{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom:10px;
    }
    .float-qrcode .popover .head strong{font-size:13.2px}
    .xbtn{
      width:34px; height:34px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.9);
      cursor:pointer;
      display:flex; align-items:center; justify-content:center;
      transition: transform .18s ease;
    }
    .xbtn:hover{transform: translateY(-1px)}
    .xbtn svg{width:16px; height:16px}
    .float-qrcode img{
      width:100%;
      height:auto;
      display:block;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: #fff;
    }

    .backtop{
      width:46px; height:46px;
      border-radius:18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.92);
      box-shadow: 0 20px 44px rgba(17,24,39,.14);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .2s ease, border-color .2s ease;
      user-select:none;
    }
    .backtop:hover{transform: translateY(-3px); border-color: rgba(37,99,235,.18)}
    .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 .hero-inner{grid-template-columns: 1fr; padding: 26px 0 20px}
      .hero-right{padding-top:0}
      .grid-3{grid-template-columns: 1fr}
      .grid-4{grid-template-columns: 1fr 1fr}
      .steps{grid-template-columns: 1fr 1fr}
      .dual{grid-template-columns: 1fr}
      .reviews{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .poster-grid{grid-template-columns: 1fr}
      .article-list{grid-template-columns: 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .float-customer{right:10px; bottom:10px}
    }

    @media (max-width: 860px){
      .menu{display:none}
      .hamburger{display:inline-flex; align-items:center; justify-content:center}
      .mobile-panel{display:block}
      nav{justify-content:flex-end}
    }

    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      .card, .data-card, blockquote, .poster, .btn{transition:none}
    }