:root{
      --bg0:#ffffff;
      --bg1:#f7f6ff;
      --bg2:#f3fbff;
      --text:#121623;
      --muted:#4b5563;
      --muted2:#6b7280;
      --card:#ffffffcc;
      --line:rgba(17,24,39,.12);
      --shadow: 0 14px 40px rgba(18,22,35,.10);
      --shadow2: 0 10px 26px rgba(18,22,35,.10);
      --shadow3: 0 8px 18px rgba(18,22,35,.08);
      --ring: rgba(79, 70, 229, .28);
      --radius: 18px;
      --radius2: 22px;

      --p1:#6d28d9;
      --p2:#2563eb;
      --p3:#06b6d4;
      --p4:#f97316;
      --accent:#5b5cf6;
      --accent2:#00b7ff;

      --btn:#121623;
      --btnText:#ffffff;

      --ok:#16a34a;
      --warn:#f59e0b;

      --container: 1120px;
    }

    *{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;
      color:var(--text);
      background:
        radial-gradient(1200px 650px at 10% -10%, rgba(99,102,241,.18), transparent 55%),
        radial-gradient(900px 520px at 90% 0%, rgba(34,211,238,.14), transparent 50%),
        radial-gradient(850px 600px at 70% 50%, rgba(249,115,22,.10), transparent 55%),
        linear-gradient(180deg, var(--bg1), var(--bg0) 42%, #fbfcff 100%);
      overflow-x:hidden;
    }

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

    .skip-link{
      position:absolute;
      left:-999px;
      top:auto;
      width:1px;height:1px;
      overflow:hidden;
    }
    .skip-link:focus{
      left:16px; top:16px; width:auto; height:auto; z-index:9999;
      background:#fff; padding:10px 12px; border:1px solid var(--line); border-radius:10px;
      box-shadow: var(--shadow3);
    }

    header.site-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;
      padding: 12px 0;
      gap:12px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width: 220px;
    }
    .ai-page-logo{
      width:44px;height:44px; object-fit:contain;
      padding:8px;
      border-radius:14px;
      background: linear-gradient(135deg, rgba(99,102,241,.14), rgba(34,211,238,.12));
      border:1px solid rgba(99,102,241,.18);
    }
    .brand-title{
      display:flex;
      flex-direction:column;
      line-height:1.1;
    }
    .brand-title strong{
      font-size:14px;
      letter-spacing:.3px;
    }
    .brand-title span{
      font-size:12px;
      color:var(--muted2);
    }

    nav.primary-nav{
      display:flex;
      align-items:center;
      gap:18px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap:14px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links a{
      font-size:13px;
      color:rgba(18,22,35,.86);
      padding:8px 10px;
      border-radius:12px;
      transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
      border:1px solid transparent;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background: rgba(99,102,241,.10);
      border-color: rgba(99,102,241,.22);
      transform: translateY(-1px);
    }

    .nav-cta{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .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,.12);
      background: rgba(255,255,255,.7);
      color:rgba(18,22,35,.92);
      font-weight:650;
      font-size:13px;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .btn:hover{
      transform: translateY(-1px);
      border-color: rgba(99,102,241,.35);
      box-shadow: 0 12px 24px rgba(18,22,35,.10);
      background: rgba(255,255,255,.92);
    }
    .btn:active{transform: translateY(0px)}
    .btn-primary{
      background: linear-gradient(135deg, rgba(91,92,246,.98), rgba(0,183,255,.92));
      border-color: rgba(91,92,246,.35);
      color:#fff;
      box-shadow: 0 16px 34px rgba(91,92,246,.20);
    }
    .btn-primary:hover{
      box-shadow: 0 20px 40px rgba(91,92,246,.24);
      border-color: rgba(91,92,246,.45);
    }

    .icon-dot{
      width:10px;height:10px;border-radius:999px;
      background: radial-gradient(circle at 30% 30%, #ffffff, rgba(255,255,255,.3) 35%, transparent 55%),
                  linear-gradient(135deg, var(--p1), var(--p2));
      box-shadow: 0 0 0 4px rgba(91,92,246,.18);
      flex:0 0 auto;
    }

    .mobile-toggle{
      display:none;
      width:42px;height:42px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.75);
      align-items:center;
      justify-content:center;
      cursor:pointer;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .mobile-toggle:hover{
      transform: translateY(-1px);
      border-color: rgba(99,102,241,.35);
      box-shadow: 0 12px 22px rgba(18,22,35,.10);
    }
    .hamburger{
      width:18px; height:12px; position:relative;
    }
    .hamburger span{
      position:absolute; left:0; right:0;
      height:2px; background: rgba(18,22,35,.86);
      border-radius:999px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease;
    }
    .hamburger span:nth-child(1){top:0}
    .hamburger span:nth-child(2){top:5px}
    .hamburger span:nth-child(3){top:10px}

    .mobile-toggle[aria-expanded="true"] .hamburger span:nth-child(1){top:5px; 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:5px; transform:rotate(-45deg)}

    .mobile-panel{
      display:none;
      padding: 10px 0 16px 0;
    }
    .mobile-panel .mobile-links{
      display:flex; flex-direction:column; gap:10px;
    }
    .mobile-panel .mobile-links a{
      padding: 12px 12px;
      border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      font-size:14px;
      color: rgba(18,22,35,.90);
    }

    /* Hero */
    .hero{
      position:relative;
      padding: 34px 0 26px 0;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 20px;
      align-items:stretch;
    }
    .hero-left{
      border-radius: var(--radius2);
      padding: 26px 22px;
      background:
        radial-gradient(900px 380px at 20% 0%, rgba(99,102,241,.20), transparent 55%),
        radial-gradient(650px 320px at 100% 10%, rgba(34,211,238,.16), transparent 52%),
        linear-gradient(135deg, rgba(255,255,255,.78), rgba(255,255,255,.55));
      border: 1px solid rgba(17,24,39,.08);
      box-shadow: var(--shadow2);
      overflow:hidden;
      position:relative;
    }
    .hero-left:before{
      content:"";
      position:absolute;
      inset:-2px;
      background:
        linear-gradient(90deg, rgba(99,102,241,.0), rgba(99,102,241,.18), rgba(34,211,238,.18), rgba(249,115,22,.08), rgba(99,102,241,.0));
      opacity:.65;
      filter: blur(18px);
      pointer-events:none;
      transform: translateY(-20px);
    }
    .hero-kicker{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      position:relative;
      z-index:1;
      margin-bottom: 12px;
    }
    .chip{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      border: 1px solid rgba(99,102,241,.22);
      background: rgba(99,102,241,.08);
      color: rgba(45,55,110,.95);
      font-weight:650;
      font-size:12px;
    }
    .chip.alt{
      border-color: rgba(34,211,238,.22);
      background: rgba(34,211,238,.10);
      color: rgba(7,89,133,.95);
    }
    .hero-title{
      position:relative;
      z-index:1;
      margin:0;
      font-size: 34px;
      letter-spacing: -0.6px;
      line-height:1.15;
    }
    .hero-sub{
      position:relative;
      z-index:1;
      margin: 12px 0 16px 0;
      color: rgba(18,22,35,.76);
      font-size: 15px;
      line-height:1.65;
      max-width: 62ch;
    }

    .hero-actions{
      position:relative;
      z-index:1;
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
      margin-top: 10px;
    }
    .hero-meta{
      position:relative;
      z-index:1;
      display:flex;
      gap:14px;
      flex-wrap:wrap;
      margin-top: 18px;
      padding-top: 14px;
      border-top: 1px solid rgba(17,24,39,.10);
    }
    .meta-item{
      display:flex;
      flex-direction:column;
      gap:4px;
      min-width: 160px;
    }
    .meta-item b{
      font-size:14px;
      letter-spacing:.2px;
    }
    .meta-item span{
      font-size:12px;
      color: var(--muted2);
      line-height:1.4;
    }

    .hero-right{
      border-radius: var(--radius2);
      background:
        linear-gradient(135deg, rgba(255,255,255,.74), rgba(255,255,255,.50));
      border: 1px solid rgba(17,24,39,.08);
      box-shadow: var(--shadow2);
      padding: 18px 18px;
      overflow:hidden;
      position:relative;
    }
    .hero-right:after{
      content:"";
      position:absolute;
      width: 260px;
      height: 260px;
      right:-140px;
      top:-160px;
      background: radial-gradient(circle at 30% 30%, rgba(99,102,241,.28), transparent 60%),
                  radial-gradient(circle at 60% 60%, rgba(34,211,238,.20), transparent 62%);
      filter: blur(2px);
      pointer-events:none;
    }
    .side-title{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom: 12px;
    }
    .side-title h2{
      margin:0;
      font-size:14px;
      letter-spacing:.2px;
    }
    .badge{
      font-size:12px;
      padding: 7px 10px;
      border-radius: 999px;
      border:1px solid rgba(99,102,241,.22);
      background: rgba(99,102,241,.10);
      color: rgba(45,55,110,.95);
      font-weight:700;
      white-space:nowrap;
    }
    .metric-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 10px;
    }
    .metric{
      padding: 14px 12px;
      border-radius: 16px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .metric:hover{
      transform: translateY(-2px);
      box-shadow: 0 16px 30px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.28);
    }
    .metric strong{
      display:flex;
      align-items:center;
      gap:10px;
      font-size:14px;
      letter-spacing:.2px;
    }
    .metric p{
      margin: 8px 0 0 0;
      color: var(--muted2);
      font-size:12px;
      line-height:1.5;
    }
    .mini-rail{
      position:relative;
      z-index:1;
      margin-top: 14px;
      padding: 14px 14px;
      border-radius: 16px;
      border:1px solid rgba(17,24,39,.10);
      background: linear-gradient(135deg, rgba(34,211,238,.10), rgba(99,102,241,.10));
    }
    .mini-rail .rail-row{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      margin-bottom: 10px;
    }
    .mini-rail h3{
      margin:0;
      font-size:13px;
      letter-spacing:.2px;
    }
    .mini-rail .hint{
      font-size:12px; color: var(--muted2); line-height:1.4;
      margin-top: 2px;
    }
    .rail-list{
      display:flex; flex-direction:column; gap:10px;
    }
    .rail-item{
      display:flex; gap:10px; align-items:flex-start;
      padding: 10px 10px;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.58);
    }
    .rail-item .num{
      width:26px;height:26px;border-radius:10px;
      display:flex; align-items:center; justify-content:center;
      background: rgba(99,102,241,.12);
      border:1px solid rgba(99,102,241,.22);
      font-weight:800; font-size:12px;
      color: rgba(45,55,110,.95);
      flex:0 0 auto;
    }
    .rail-item b{
      font-size:13px;
    }
    .rail-item span{
      display:block;
      margin-top:3px;
      font-size:12px; color: var(--muted2); line-height:1.45;
    }

    /* Sections */
    section{
      padding: 22px 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: 20px;
      letter-spacing: -0.2px;
    }
    .section-head p{
      margin:0;
      color: var(--muted2);
      font-size:13px;
      line-height:1.6;
      max-width: 62ch;
    }

    .panel{
      border-radius: var(--radius2);
      border: 1px solid rgba(17,24,39,.08);
      background: linear-gradient(135deg, rgba(255,255,255,.78), rgba(255,255,255,.58));
      box-shadow: var(--shadow3);
      overflow:hidden;
    }

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

    .cards3{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }

    .cards2{
      display:grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 12px;
    }

    .card{
      padding: 16px 16px;
      border-radius: 18px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
      position:relative;
      overflow:hidden;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.30);
    }
    .card h3{
      margin: 10px 0 6px 0;
      font-size: 15px;
      letter-spacing: -.1px;
    }
    .card p{
      margin:0;
      color: var(--muted2);
      font-size:13px;
      line-height:1.65;
    }
    .card .topline{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      margin-bottom: 10px;
    }
    .glyph{
      width:40px;height:40px;border-radius:14px;
      display:flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, rgba(99,102,241,.14), rgba(34,211,238,.12));
      border:1px solid rgba(99,102,241,.18);
      flex:0 0 auto;
    }
    .glyph svg{width:22px;height:22px; color: rgba(37,99,235,.95)}
    .tag{
      font-size:12px;
      padding: 7px 10px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.55);
      color: rgba(18,22,35,.82);
      white-space:nowrap;
    }

    .workflow{
      display:grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 12px;
    }
    .step{
      padding: 16px 14px;
      border-radius: 20px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .step:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.30);
    }
    .step:before{
      content:"";
      position:absolute;
      left:-40px; top:-40px;
      width:120px;height:120px;
      border-radius: 999px;
      background: radial-gradient(circle at 30% 30%, rgba(99,102,241,.18), transparent 62%);
      pointer-events:none;
    }
    .step-num{
      display:flex; align-items:center; gap:10px;
      position:relative;
      z-index:1;
    }
    .step-num .circle{
      width:34px;height:34px;border-radius:14px;
      display:flex; align-items:center; justify-content:center;
      background: linear-gradient(135deg, rgba(91,92,246,.16), rgba(0,183,255,.10));
      border:1px solid rgba(91,92,246,.25);
      font-weight:900; font-size:13px; color: rgba(45,55,110,.98);
    }
    .step-num b{
      font-size:14px;
    }
    .step p{
      position:relative;
      z-index:1;
      margin: 10px 0 0 0;
      color: var(--muted2);
      font-size:13px;
      line-height:1.65;
    }

    .compare-wrap{
      overflow:auto;
      border-radius: 20px;
      border: 1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
    }
    table{
      width:100%;
      border-collapse:collapse;
      min-width: 860px;
    }
    th, td{
      padding: 14px 12px;
      border-bottom: 1px solid rgba(17,24,39,.08);
      vertical-align:top;
      text-align:left;
      font-size:13px;
      line-height:1.45;
    }
    th{
      background: linear-gradient(135deg, rgba(99,102,241,.10), rgba(34,211,238,.08));
      font-weight:850;
      color: rgba(18,22,35,.92);
    }
    td .cell-title{
      font-weight:800;
      margin-bottom: 6px;
      display:flex;
      align-items:center;
      gap:10px;
    }
    .check{
      width:18px;height:18px;border-radius:8px;
      display:inline-flex; align-items:center; justify-content:center;
      border:1px solid rgba(22,163,74,.20);
      background: rgba(22,163,74,.10);
      color: var(--ok);
      flex:0 0 auto;
    }
    .cross{
      width:18px;height:18px;border-radius:8px;
      display:inline-flex; align-items:center; justify-content:center;
      border:1px solid rgba(245,158,11,.25);
      background: rgba(245,158,11,.12);
      color: var(--warn);
      flex:0 0 auto;
    }
    .note{
      color: var(--muted2);
      font-size:12px;
      margin-top:6px;
    }
    .score-card{
      padding: 16px 16px;
      border-radius: 20px;
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(600px 220px at 0% 0%, rgba(99,102,241,.16), transparent 55%),
        radial-gradient(500px 250px at 100% 10%, rgba(34,211,238,.14), transparent 52%),
        rgba(255,255,255,.70);
      box-shadow: var(--shadow3);
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .score-top{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
    }
    .stars{
      display:flex; gap:6px; align-items:center;
    }
    .star{
      width:22px;height:22px;
      display:inline-flex; align-items:center; justify-content:center;
      color: rgba(245,158,11,.95);
      filter: drop-shadow(0 6px 12px rgba(245,158,11,.18));
    }
    .score-top .value{
      display:flex;
      flex-direction:column;
      align-items:flex-end;
      gap:4px;
      min-width: 170px;
    }
    .score-top .value b{
      font-size: 28px;
      letter-spacing:-.6px;
      line-height:1;
    }
    .score-top .value span{
      font-size:12px;
      color: var(--muted2);
      white-space:nowrap;
    }
    .score-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:10px;
    }
    .score-item{
      padding: 12px 12px;
      border-radius: 16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.58);
      transition: transform .18s ease;
    }
    .score-item:hover{transform: translateY(-1px)}
    .score-item b{
      display:block;
      font-size:13px;
      margin-bottom: 6px;
    }
    .score-item span{
      display:block;
      font-size:12px;
      color: var(--muted2);
      line-height:1.5;
    }

    /* FAQ */
    .faq-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      align-items:start;
    }
    .faq-item{
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      overflow:hidden;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .faq-item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.30);
    }
    .faq-q{
      width:100%;
      background: transparent;
      border:0;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding: 14px 14px;
      cursor:pointer;
      text-align:left;
    }
    .faq-q b{
      font-size:13px;
      line-height:1.5;
      color: rgba(18,22,35,.92);
      padding-right:6px;
    }
    .chev{
      width:34px;height:34px;border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.56);
      display:flex; align-items:center; justify-content:center;
      transition: transform .2s ease, background .2s ease;
      flex:0 0 auto;
    }
    .faq-item[aria-expanded="true"] .chev{
      transform: rotate(180deg);
      background: rgba(99,102,241,.10);
    }
    .faq-a{
      padding: 0 14px 14px 14px;
      color: var(--muted2);
      font-size:13px;
      line-height:1.75;
      display:none;
    }
    .faq-item[aria-expanded="true"] .faq-a{display:block}

    /* Reviews */
    .review-grid{
      display:grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 12px;
    }
    .review{
      padding: 16px 16px;
      border-radius: 20px;
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(420px 180px at 0% 0%, rgba(99,102,241,.14), transparent 58%),
        rgba(255,255,255,.70);
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
      display:flex;
      flex-direction:column;
      gap:10px;
      min-height: 178px;
    }
    .review:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.30);
    }
    .review .who{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
    }
    .avatar{
      width:38px;height:38px;border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: linear-gradient(135deg, rgba(99,102,241,.16), rgba(34,211,238,.12));
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      color: rgba(45,55,110,.98);
      flex:0 0 auto;
    }
    .who b{font-size:13px}
    .who span{display:block; margin-top:2px; color: var(--muted2); font-size:12px}
    .review p{
      margin:0;
      color: rgba(18,22,35,.78);
      font-size:13px;
      line-height:1.7;
    }
    .review .pill-row{
      margin-top:auto;
      display:flex; flex-wrap:wrap; gap:8px;
    }
    .pill{
      font-size:12px;
      padding: 7px 10px;
      border-radius:999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.58);
      color: rgba(18,22,35,.82);
      white-space:nowrap;
    }

    /* Article list */
    .article-list{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 12px;
      align-items:start;
    }
    .list{
      display:flex; flex-direction:column; gap:10px;
    }
    .list a.item{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:14px;
      padding: 14px 14px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
    }
    .list a.item:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.30);
    }
    .item .left{
      display:flex; flex-direction:column; gap:6px;
      min-width:0;
    }
    .item .title{
      font-weight:850;
      font-size:13px;
      line-height:1.45;
    }
    .item .sub{
      color: var(--muted2);
      font-size:12px;
      line-height:1.5;
      max-width: 52ch;
    }
    .item .go{
      width:34px;height:34px;border-radius:14px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.56);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .18s ease;
    }
    .list a.item:hover .go{transform: translateX(2px)}
    .side-box{
      padding: 16px 16px;
      border-radius: 20px;
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(520px 220px at 0% 0%, rgba(34,211,238,.14), transparent 58%),
        rgba(255,255,255,.70);
      position:relative;
      overflow:hidden;
      box-shadow: var(--shadow3);
    }
    .side-box h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.1px;
    }
    .side-box p{
      margin: 10px 0 14px 0;
      color: var(--muted2);
      font-size:13px;
      line-height:1.7;
    }
    .bullets{
      display:flex; flex-direction:column; gap:10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .bullets li{
      display:flex; gap:10px; align-items:flex-start;
      padding: 12px 12px;
      border-radius: 16px;
      border:1px solid rgba(17,24,39,.08);
      background: rgba(255,255,255,.58);
    }
    .bullets .dot{
      width:10px;height:10px;border-radius:999px;
      margin-top:4px;
      background: linear-gradient(135deg, var(--p1), var(--p2));
      box-shadow: 0 0 0 4px rgba(91,92,246,.16);
      flex:0 0 auto;
    }
    .bullets b{
      font-size:13px; display:block; margin-bottom:4px;
    }
    .bullets span{
      font-size:12px; color: var(--muted2); line-height:1.55;
      display:block;
    }

    /* Case */
    .case-grid{
      display:grid;
      grid-template-columns: 1fr 1fr 1fr;
      gap: 12px;
    }
    .case{
      border-radius: 22px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.70);
      overflow:hidden;
      display:flex;
      flex-direction:column;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
      min-height: 270px;
    }
    .case:hover{
      transform: translateY(-2px);
      box-shadow: 0 18px 34px rgba(18,22,35,.10);
      border-color: rgba(99,102,241,.30);
    }
    .img-wrap{
      padding: 12px 12px 0 12px;
    }
    .img-frame{
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.08);
      background: linear-gradient(135deg, rgba(99,102,241,.10), rgba(34,211,238,.08));
      overflow:hidden;
    }
    .img-frame img{
      display:block;
      width:100%;
      height:auto;
      object-fit:cover;
    }
    .case-body{
      padding: 12px 14px 14px 14px;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .case-body h3{
      margin:0;
      font-size:15px;
      letter-spacing:-.1px;
    }
    .case-body p{
      margin:0;
      color: var(--muted2);
      font-size:13px;
      line-height:1.7;
    }
    .case-actions{
      margin-top:auto;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
    }
    .link-soft{
      font-size:13px;
      font-weight:700;
      color: rgba(37,99,235,.98);
      padding: 10px 12px;
      border-radius: 14px;
      border:1px solid rgba(37,99,235,.18);
      background: rgba(37,99,235,.08);
      transition: transform .18s ease, box-shadow .2s ease;
    }
    .link-soft:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 26px rgba(37,99,235,.14);
    }

    /* Form */
    .form-grid{
      display:grid;
      grid-template-columns: 1fr .9fr;
      gap: 12px;
      align-items:start;
    }
    form{
      padding: 16px 16px;
      border-radius: 22px;
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(700px 260px at 0% 0%, rgba(99,102,241,.16), transparent 55%),
        rgba(255,255,255,.70);
      box-shadow: var(--shadow3);
    }
    .form-row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
    }
    label{
      display:flex;
      flex-direction:column;
      gap:8px;
      margin-bottom: 12px;
    }
    .label-top{
      display:flex; align-items:baseline; justify-content:space-between; gap:10px;
    }
    .label-top b{
      font-size:13px;
    }
    .req{
      font-size:12px;
      color: var(--muted2);
      white-space:nowrap;
    }
    input, select, textarea{
      width:100%;
      padding: 11px 12px;
      border-radius: 14px;
      border:1px solid rgba(17,24,39,.14);
      background: rgba(255,255,255,.80);
      color: rgba(18,22,35,.92);
      outline:none;
      font-size:14px;
      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(99,102,241,.45);
      box-shadow: 0 0 0 4px var(--ring);
      background: rgba(255,255,255,.95);
    }
    .form-actions{
      display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
      margin-top: 4px;
    }
    .small-note{
      font-size:12px;
      color: var(--muted2);
      line-height:1.5;
      max-width: 52ch;
    }

    /* Tags cloud */
    .tagcloud{
      display:flex; flex-wrap:wrap; gap:10px;
    }
    .tag-cloud-item{
      font-size:13px;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
      color: rgba(18,22,35,.85);
      transition: transform .18s ease, border-color .2s ease, background .2s ease;
      cursor:pointer;
      user-select:none;
    }
    .tag-cloud-item:hover{
      transform: translateY(-1px);
      border-color: rgba(99,102,241,.28);
      background: rgba(99,102,241,.08);
    }

    /* Network cards */
    .network-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 12px;
      align-items:start;
    }
    .network-map{
      padding: 16px 16px;
      border-radius: 22px;
      border:1px solid rgba(17,24,39,.10);
      background:
        radial-gradient(800px 260px at 15% 10%, rgba(34,211,238,.16), transparent 55%),
        radial-gradient(650px 280px at 90% 0%, rgba(99,102,241,.16), transparent 58%),
        rgba(255,255,255,.70);
      box-shadow: var(--shadow3);
      position:relative;
      overflow:hidden;
    }
    .network-map h3{margin:0; font-size:15px}
    .network-map p{margin:10px 0 14px 0; color: var(--muted2); font-size:13px; line-height:1.7}
    .world-rail{
      display:grid;
      grid-template-columns: repeat(6, 1fr);
      gap: 10px;
      padding: 10px 0 4px 0;
    }
    .node{
      height: 54px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.62);
      display:flex;
      align-items:center;
      justify-content:center;
      font-weight:850;
      font-size:12px;
      color: rgba(18,22,35,.86);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease;
    }
    .node:after{
      content:"";
      position:absolute;
      inset:-2px;
      background: linear-gradient(135deg, rgba(99,102,241,.18), rgba(34,211,238,.14), rgba(249,115,22,.10));
      opacity:.0;
      transition: opacity .2s ease;
      pointer-events:none;
    }
    .node:hover{
      transform: translateY(-2px);
    }
    .node:hover:after{opacity:.9}
    .node span{position:relative; z-index:1}

    /* Footer */
    footer{
      padding: 16px 0 26px 0;
      background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,.55) 35%, rgba(255,255,255,.90) 100%);
      border-top: 1px solid rgba(17,24,39,.08);
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 14px;
      align-items:start;
    }
    .footer-card{
      padding: 16px 16px;
      border-radius: 22px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.72);
      box-shadow: var(--shadow3);
    }
    .footer-card h3{
      margin:0;
      font-size:15px;
    }
    .footer-card p{
      margin:10px 0 12px 0;
      color: var(--muted2);
      font-size:13px;
      line-height:1.7;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top: 10px;
    }
    .footer-links a{
      font-size:13px;
      padding: 10px 12px;
      border-radius: 999px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.60);
      transition: transform .18s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .footer-links a:hover{
      transform: translateY(-1px);
      border-color: rgba(99,102,241,.28);
    }

    .footer-right{
      display:flex;
      flex-direction:column;
      gap:12px;
    }
    .qr-wrap{
      display:flex;
      gap:12px;
      align-items:flex-start;
    }
    .qr-wrap img{
      width:86px; height:auto;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.10);
      background: rgba(255,255,255,.65);
    }
    .qr-wrap b{display:block; font-size:14px; margin-bottom:6px}
    .qr-wrap span{display:block; color: var(--muted2); font-size:13px; line-height:1.6}
    .copyright{
      margin-top: 14px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      flex-wrap:wrap;
      color: var(--muted2);
      font-size:12px;
    }

    /* floating */
    .floating{
      position:fixed;
      right: 16px;
      bottom: 16px;
      z-index: 60;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
    }
    .float-card{
      padding: 10px 12px;
      border-radius: 18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow: 0 16px 40px rgba(18,22,35,.14);
      display:flex;
      align-items:center;
      gap:10px;
      cursor:pointer;
      transition: transform .18s ease, box-shadow .2s ease, border-color .2s ease;
      user-select:none;
    }
    .float-card:hover{
      transform: translateY(-2px);
      border-color: rgba(99,102,241,.30);
      box-shadow: 0 20px 48px rgba(18,22,35,.16);
    }
    .float-card .bubble{
      width:38px;height:38px;border-radius:14px;
      border:1px solid rgba(99,102,241,.22);
      background: rgba(99,102,241,.10);
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .float-card b{font-size:13px}
    .float-card span{display:block; font-size:12px; color: var(--muted2); margin-top:2px}
    .backtop{
      width:44px;height:44px;border-radius:18px;
      border:1px solid rgba(17,24,39,.12);
      background: rgba(255,255,255,.78);
      backdrop-filter: blur(10px);
      box-shadow: 0 16px 40px rgba(18,22,35,.14);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .18s ease, border-color .2s ease, box-shadow .2s ease;
      user-select:none;
    }
    .backtop:hover{
      transform: translateY(-2px);
      border-color: rgba(99,102,241,.30);
      box-shadow: 0 20px 48px rgba(18,22,35,.16);
    }

    /* scroll reveal */
    .reveal{
      opacity:0;
      transform: translateY(14px);
      transition: opacity .6s ease, transform .6s ease;
    }
    .reveal.in{
      opacity:1;
      transform: translateY(0);
    }

    /* Responsive */
    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr; }
      .hero-title{font-size: 30px}
      .workflow{grid-template-columns: repeat(2, 1fr)}
      .cards3{grid-template-columns: 1fr 1fr}
      .review-grid{grid-template-columns: 1fr 1fr}
      .case-grid{grid-template-columns: 1fr 1fr}
      .article-list{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .network-grid{grid-template-columns: 1fr}
      .faq-grid{grid-template-columns: 1fr}
      .score-grid{grid-template-columns: 1fr 1fr}
      nav.primary-nav{display:none}
      .mobile-toggle{display:flex}
      .mobile-panel{display:block}
    }
    @media (max-width: 520px){
      .metric-grid{grid-template-columns: 1fr 1fr}
      .hero-left{padding: 22px 16px}
      .hero-right{padding: 16px 14px}
      .hero-title{font-size: 26px}
      .two-col{grid-template-columns: 1fr}
      .cards3{grid-template-columns: 1fr}
      .cards2{grid-template-columns: 1fr}
      .workflow{grid-template-columns: 1fr}
      .review-grid{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      table{min-width: 720px}
      .form-row{grid-template-columns: 1fr}
      .world-rail{grid-template-columns: repeat(3, 1fr)}
      .floating{right: 12px; bottom: 12px}
    }

    /* Accessible focus */
    :focus-visible{
      outline: none;
      box-shadow: 0 0 0 4px var(--ring);
      border-color: rgba(99,102,241,.45) !important;
    }

    /* Reduce motion */
    @media (prefers-reduced-motion: reduce){
      html{scroll-behavior:auto}
      .reveal{transition:none}
      .card, .metric, .step, .review, .faq-item, .node, .list a.item, .btn, .float-card, .backtop{transition:none}
    }