:root{
      --bg0:#0b1020;
      --bg1:#0f1631;
      --card:#ffffff;
      --text:#0f172a;
      --muted:#475569;
      --muted2:#6b7280;
      --line:rgba(15,23,42,.10);
      --shadow:0 18px 45px rgba(2,6,23,.10);
      --shadow2:0 12px 24px rgba(2,6,23,.12);
      --brand1:#ff2d7d;
      --brand2:#7c3aed;
      --brand3:#00d4ff;
      --brand4:#19c37d;
      --brand5:#f97316;
      --focus: rgba(255,45,125,.35);
      --radius:18px;
      --radius2:26px;
      --container:1140px;
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans CJK SC", Arial, "Apple Color Emoji","Segoe UI Emoji";
      color:var(--text);
      background:
        radial-gradient(900px 500px at 18% -10%, rgba(255,45,125,.22), transparent 55%),
        radial-gradient(720px 420px at 85% 10%, rgba(124,58,237,.18), transparent 50%),
        radial-gradient(700px 520px at 60% 115%, rgba(0,212,255,.14), transparent 55%),
        linear-gradient(180deg, #ffffff 0%, #fbfbfe 40%, #f7f7ff 100%);
      overflow-x:hidden;
    }
    a{color:inherit; text-decoration:none}
    button, input, select, textarea{font:inherit}
    .skip-link{
      position:absolute; left:-9999px; 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-radius:12px; box-shadow:var(--shadow2);
      outline:2px solid rgba(255,45,125,.45);
    }
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    header{
      position:sticky;
      top:0;
      z-index:50;
      backdrop-filter:saturate(140%) blur(10px);
      background:rgba(255,255,255,.72);
      border-bottom:1px solid rgba(15,23,42,.08);
    }
    .nav-wrap{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding:12px 0;
    }
    .brand{
      display:flex; align-items:center; gap:12px; min-width:180px;
    }
    .ai-page-logo{
      width:44px; height:44px; border-radius:14px;
      box-shadow:0 10px 24px rgba(124,58,237,.20);
      background:#fff;
      object-fit:contain;
    }
    .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(--muted2);
      margin-top:3px;
    }
    .nav-right{
      display:flex; align-items:center; gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-links{
      display:flex; align-items:center; gap:12px;
      padding:6px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.08);
      background:rgba(255,255,255,.65);
    }
    .nav-links a{
      font-size:13px;
      color:rgba(15,23,42,.84);
      padding:8px 10px;
      border-radius:999px;
      transition:transform .18s ease, background .18s ease, box-shadow .18s ease;
      outline:none;
      white-space:nowrap;
    }
    .nav-links a:hover{
      background:rgba(255,45,125,.10);
      transform: translateY(-1px);
      box-shadow:0 10px 22px rgba(255,45,125,.10);
    }
    .nav-cta{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      display:inline-flex; align-items:center; justify-content:center;
      gap:10px;
      padding:11px 14px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
      color:rgba(15,23,42,.92);
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      user-select:none;
      white-space:nowrap;
    }
    .btn:focus{outline:3px solid var(--focus); outline-offset:2px}
    .btn:hover{
      transform: translateY(-1px);
      box-shadow:0 14px 30px rgba(2,6,23,.10);
      border-color:rgba(255,45,125,.25);
    }
    .btn-primary{
      border-color: rgba(255,45,125,.30);
      background: linear-gradient(135deg, rgba(255,45,125,.96) 0%, rgba(124,58,237,.94) 55%, rgba(0,212,255,.90) 115%);
      color:#fff;
      box-shadow:0 16px 35px rgba(124,58,237,.25);
    }
    .btn-primary:hover{
      box-shadow:0 20px 45px rgba(124,58,237,.32);
      border-color: rgba(255,45,125,.45);
    }
    .btn-ghost{
      background:rgba(255,255,255,.65);
    }
    .btn-small{padding:9px 12px; border-radius:12px; font-size:13px}
    .icon-dot{
      width:10px; height:10px; border-radius:50%;
      background:rgba(255,255,255,.92);
      box-shadow:0 0 0 5px rgba(255,255,255,.18);
    }
    .menu-btn{
      display:none;
      padding:10px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background:rgba(255,255,255,.65);
      cursor:pointer;
    }
    .menu-btn:focus{outline:3px solid var(--focus); outline-offset:2px}
    .menu-icon{
      width:22px; height:14px; position:relative;
    }
    .menu-icon span{
      position:absolute; left:0; right:0;
      height:2px; border-radius:2px;
      background:rgba(15,23,42,.85);
      transition: transform .2s ease, opacity .2s ease, top .2s ease;
    }
    .menu-icon span:nth-child(1){top:0}
    .menu-icon span:nth-child(2){top:6px}
    .menu-icon span:nth-child(3){top:12px}
    .menu-open .menu-icon span:nth-child(1){top:6px; transform: rotate(45deg)}
    .menu-open .menu-icon span:nth-child(2){opacity:0}
    .menu-open .menu-icon span:nth-child(3){top:6px; transform: rotate(-45deg)}
    .mobile-drawer{
      display:none;
      border-top:1px solid rgba(15,23,42,.08);
      background:rgba(255,255,255,.88);
      backdrop-filter: blur(10px) saturate(140%);
    }
    .mobile-drawer-inner{
      padding:14px 0 18px;
      display:flex; flex-direction:column; gap:10px;
    }
    .mobile-drawer a{
      padding:12px 12px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      font-size:14px;
      color:rgba(15,23,42,.92);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .mobile-drawer a:hover{
      transform: translateY(-1px);
      box-shadow:0 16px 32px rgba(2,6,23,.10);
      border-color: rgba(255,45,125,.22);
    }
    .hero{
      padding:26px 0 8px;
    }
    .hero-shell{
      position:relative;
      border-radius: var(--radius2);
      overflow:hidden;
      background:
        radial-gradient(1100px 420px at 15% 0%, rgba(255,45,125,.23), transparent 55%),
        radial-gradient(920px 420px at 86% 15%, rgba(124,58,237,.22), transparent 55%),
        radial-gradient(900px 520px at 60% 110%, rgba(0,212,255,.16), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.82) 0%, rgba(255,255,255,.65) 100%);
      border:1px solid rgba(15,23,42,.08);
      box-shadow:0 22px 60px rgba(2,6,23,.08);
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap:18px;
      padding:28px;
      align-items:stretch;
    }
    .hero-left{
      padding:8px 4px 8px 6px;
      display:flex;
      flex-direction:column;
      justify-content:center;
      gap:14px;
      min-height: 360px;
    }
    .kicker{
      display:inline-flex; align-items:center; gap:10px;
      padding:9px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.64);
      width:fit-content;
      box-shadow:0 12px 28px rgba(124,58,237,.08);
    }
    .kicker .chip{
      display:inline-flex; align-items:center; gap:8px;
      font-size:13px; color:rgba(15,23,42,.92);
    }
    .spark{
      width:18px; height:18px; border-radius:6px;
      background: linear-gradient(135deg, rgba(255,45,125,.95), rgba(124,58,237,.95), rgba(0,212,255,.9));
      box-shadow:0 12px 24px rgba(124,58,237,.22);
      position:relative;
      overflow:hidden;
    }
    .spark:after{
      content:"";
      position:absolute; inset:-10px;
      background: linear-gradient(120deg, rgba(255,255,255,.0) 10%, rgba(255,255,255,.55) 45%, rgba(255,255,255,0) 70%);
      transform: translateX(-60%) rotate(12deg);
      animation: shimmer 2.4s ease-in-out infinite;
      opacity:.85;
    }
    @keyframes shimmer{
      0%{transform: translateX(-70%) rotate(12deg)}
      55%{transform: translateX(55%) rotate(12deg)}
      100%{transform: translateX(55%) rotate(12deg)}
    }
    .hero h1{
      margin:0;
      font-size:40px;
      letter-spacing:-.6px;
      line-height:1.08;
    }
    .grad-text{
      background: linear-gradient(135deg, rgba(255,45,125,1) 0%, rgba(124,58,237,1) 45%, rgba(0,212,255,1) 100%);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero p{
      margin:0;
      color:rgba(15,23,42,.72);
      font-size:15px;
      line-height:1.8;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex; gap:12px; flex-wrap:wrap;
      margin-top:6px;
    }
    .meta-row{
      display:flex; flex-wrap:wrap; gap:10px;
      margin-top: 2px;
    }
    .meta-badge{
      display:inline-flex; align-items:center; gap:10px;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.70);
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .meta-badge:hover{
      transform: translateY(-1px);
      box-shadow:0 18px 40px rgba(2,6,23,.10);
    }
    .meta-badge b{
      font-size:13px;
      letter-spacing:.2px;
    }
    .meta-badge span{
      font-size:12px; color:var(--muted2);
    }
    .mini-ico{
      width:34px; height:34px; border-radius:12px;
      background:
        radial-gradient(12px 12px at 30% 30%, rgba(255,255,255,.95), rgba(255,255,255,0)),
        linear-gradient(135deg, rgba(255,45,125,.95), rgba(124,58,237,.92));
      box-shadow:0 16px 30px rgba(124,58,237,.20);
      display:flex; align-items:center; justify-content:center;
      color:#fff;
      font-weight:800;
      font-size:14px;
    }
    .hero-right{
      display:flex;
      flex-direction:column;
      gap:14px;
      padding:6px;
      justify-content:center;
    }
    .data-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:
        linear-gradient(180deg, rgba(255,255,255,.78), rgba(255,255,255,.58));
      box-shadow:0 16px 45px rgba(2,6,23,.08);
      padding:14px;
      position:relative;
      overflow:hidden;
    }
    .data-card:before{
      content:"";
      position:absolute;
      right:-120px; top:-140px;
      width:260px; height:260px;
      background: radial-gradient(circle at 30% 30%, rgba(0,212,255,.35), transparent 60%);
      transform: rotate(20deg);
      pointer-events:none;
    }
    .data-title{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom:10px;
      position:relative;
      z-index:1;
    }
    .data-title h3{
      margin:0;
      font-size:14px;
      color:rgba(15,23,42,.88);
      letter-spacing:.2px;
    }
    .pill{
      font-size:12px;
      color:rgba(15,23,42,.72);
      border:1px solid rgba(15,23,42,.10);
      padding:6px 10px;
      border-radius:999px;
      background: rgba(255,255,255,.65);
      white-space:nowrap;
    }
    .metrics{
      display:grid;
      grid-template-columns: repeat(2, minmax(0,1fr));
      gap:10px;
      position:relative;
      z-index:1;
    }
    .metric{
      border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.72);
      padding:12px 12px;
      transition: transform .18s ease, box-shadow .18s ease;
      cursor:default;
    }
    .metric:hover{
      transform: translateY(-1px);
      box-shadow:0 18px 35px rgba(2,6,23,.10);
    }
    .metric .num{
      font-size:18px; font-weight:900; letter-spacing:-.2px;
      display:flex; align-items:baseline; gap:8px;
    }
    .metric .num em{
      font-style:normal; font-size:12px; color:var(--muted2);
      font-weight:700;
    }
    .metric .lab{
      font-size:12px; color:rgba(15,23,42,.70); margin-top:6px; line-height:1.35;
    }
    .flow-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      padding:14px;
      box-shadow:0 16px 45px rgba(2,6,23,.08);
    }
    .flow-top{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px; margin-bottom:10px;
    }
    .flow-top h3{margin:0; font-size:14px}
    .flow-top p{margin:6px 0 0; font-size:12px; color:var(--muted2); line-height:1.6}
    .steps{
      display:flex; gap:10px; flex-wrap:wrap;
    }
    .step{
      flex:1 1 130px;
      min-width:130px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      padding:10px 10px;
      background:
        linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.62));
      transition: transform .18s ease, border-color .18s ease;
    }
    .step:hover{
      transform: translateY(-1px);
      border-color: rgba(255,45,125,.22);
    }
    .step b{
      display:flex; align-items:center; gap:8px;
      font-size:13px;
      letter-spacing:.2px;
    }
    .step b i{
      width:22px; height:22px; border-radius:9px;
      background: linear-gradient(135deg, rgba(255,45,125,.95), rgba(124,58,237,.95));
      color:#fff;
      font-style:normal;
      display:inline-flex; align-items:center; justify-content:center;
      font-size:12px;
      box-shadow:0 14px 26px rgba(124,58,237,.22);
    }
    .step span{
      display:block;
      margin-top:6px;
      font-size:12px;
      color:rgba(15,23,42,.72);
      line-height:1.55;
    }
    .section{
      padding:46px 0;
    }
    .section-title{
      display:flex; align-items:flex-end; justify-content:space-between; gap:14px;
      margin-bottom:18px;
    }
    .section-title h2{
      margin:0;
      font-size:24px;
      letter-spacing:-.4px;
      line-height:1.2;
    }
    .section-title p{
      margin:0;
      color:var(--muted);
      font-size:13px;
      line-height:1.8;
      max-width: 54ch;
    }
    .grid-3{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .grid-2{
      display:grid;
      grid-template-columns: repeat(2, minmax(0,1fr));
      gap:14px;
    }
    .card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:rgba(255,255,255,.78);
      box-shadow:0 18px 50px rgba(2,6,23,.06);
      padding:16px;
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    }
    .card:hover{
      transform: translateY(-2px);
      box-shadow:0 22px 60px rgba(2,6,23,.10);
      border-color: rgba(255,45,125,.20);
    }
    .card h3{
      margin:0;
      font-size:16px;
      letter-spacing:-.2px;
    }
    .card p{
      margin:10px 0 0;
      color:rgba(15,23,42,.70);
      line-height:1.75;
      font-size:13px;
    }
    .card .tagrow{
      display:flex; gap:8px; flex-wrap:wrap; margin-top:12px;
    }
    .tag{
      font-size:12px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.66);
      padding:7px 10px;
      border-radius:999px;
      color:rgba(15,23,42,.76);
      white-space:nowrap;
    }
    .card .badge{
      position:absolute;
      top:12px; right:12px;
      font-size:12px;
      padding:7px 10px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      color: rgba(15,23,42,.78);
    }
    .ability{
      background:
        radial-gradient(600px 280px at 10% 10%, rgba(255,45,125,.14), transparent 55%),
        radial-gradient(620px 300px at 90% 15%, rgba(124,58,237,.14), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.80), rgba(255,255,255,.60));
    }
    .timeline{
      display:grid;
      grid-template-columns: repeat(4, minmax(0,1fr));
      gap:12px;
    }
    .time-item{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      padding:14px;
      box-shadow:0 18px 40px rgba(2,6,23,.06);
      position:relative;
      overflow:hidden;
    }
    .time-item:before{
      content:"";
      position:absolute; left:-30px; top:-30px;
      width:90px; height:90px;
      border-radius:26px;
      background: linear-gradient(135deg, rgba(255,45,125,.25), rgba(124,58,237,.18), rgba(0,212,255,.12));
      transform: rotate(18deg);
    }
    .time-item b{
      position:relative;
      z-index:1;
      display:flex; align-items:center; gap:10px;
      font-size:14px;
    }
    .time-item b i{
      width:28px; height:28px; border-radius:12px;
      background: linear-gradient(135deg, rgba(255,45,125,.95), rgba(124,58,237,.95));
      color:#fff;
      font-style:normal;
      display:inline-flex; align-items:center; justify-content:center;
      font-weight:900;
      box-shadow:0 16px 30px rgba(124,58,237,.22);
      font-size:13px;
    }
    .time-item p{
      position:relative;
      z-index:1;
      margin:10px 0 0;
      font-size:13px;
      color:rgba(15,23,42,.70);
      line-height:1.75;
    }
    .compare-wrap{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(900px 320px at 30% 0%, rgba(255,45,125,.18), transparent 55%),
        radial-gradient(700px 280px at 90% 20%, rgba(124,58,237,.16), transparent 55%),
        linear-gradient(180deg, rgba(255,255,255,.84), rgba(255,255,255,.62));
      padding:16px;
      box-shadow:0 22px 60px rgba(2,6,23,.08);
    }
    .rating-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:14px; padding:8px 6px 16px;
      flex-wrap:wrap;
    }
    .rating-left h3{
      margin:0;
      font-size:18px;
      letter-spacing:-.2px;
    }
    .rating-left p{
      margin:10px 0 0;
      color:rgba(15,23,42,.72);
      line-height:1.8;
      font-size:13px;
      max-width: 62ch;
    }
    .stars{
      display:flex; flex-direction:column; align-items:flex-end; gap:10px;
    }
    .star-line{
      display:flex; gap:6px; align-items:center; justify-content:flex-end;
      font-size:14px;
    }
    .star{
      width:20px; height:20px;
      filter: drop-shadow(0 8px 16px rgba(255,45,125,.18));
    }
    .score{
      text-align:right;
      padding:10px 12px;
      border-radius:16px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      min-width: 170px;
    }
    .score b{
      display:block;
      font-size:22px;
      letter-spacing:-.4px;
    }
    .score span{
      color:var(--muted2);
      font-size:12px;
      line-height:1.6;
    }
    .compare-table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border-radius:16px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
    }
    .compare-table th, .compare-table td{
      padding:12px 12px;
      border-bottom:1px solid rgba(15,23,42,.08);
      vertical-align:top;
      font-size:13px;
      line-height:1.6;
    }
    .compare-table th{
      background: linear-gradient(135deg, rgba(255,45,125,.12), rgba(124,58,237,.10), rgba(0,212,255,.08));
      color:rgba(15,23,42,.86);
      font-weight:800;
      text-align:left;
    }
    .compare-table tr:last-child td{border-bottom:none}
    .mark{
      display:inline-flex; align-items:center; gap:8px;
      font-weight:800;
      color:rgba(15,23,42,.90);
      white-space:nowrap;
    }
    .mark i{
      width:20px; height:20px; border-radius:10px;
      background: linear-gradient(135deg, rgba(255,45,125,.95), rgba(124,58,237,.95));
      color:#fff;
      font-style:normal;
      display:inline-flex; align-items:center; justify-content:center;
      box-shadow:0 14px 26px rgba(124,58,237,.20);
      font-size:12px;
    }
    .mark.dim{
      color:rgba(15,23,42,.56);
      font-weight:700;
    }
    .mark.dim i{
      background: rgba(15,23,42,.14);
      color: rgba(15,23,42,.60);
      box-shadow:none;
    }
    .hlist{
      margin:0; padding-left:18px;
      color:rgba(15,23,42,.72);
    }
    .hlist li{margin:6px 0; font-size:13px; line-height:1.6}
    .tabs{
      display:flex; gap:10px; flex-wrap:wrap;
      margin-bottom:14px;
    }
    .tab{
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.75);
      padding:10px 12px;
      cursor:pointer;
      font-size:13px;
      color:rgba(15,23,42,.80);
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
    }
    .tab:hover{transform: translateY(-1px); box-shadow:0 16px 30px rgba(2,6,23,.08); border-color: rgba(255,45,125,.22)}
    .tab[aria-selected="true"]{
      background: linear-gradient(135deg, rgba(255,45,125,.16), rgba(124,58,237,.14), rgba(0,212,255,.10));
      border-color: rgba(255,45,125,.30);
      color:rgba(15,23,42,.94);
      box-shadow:0 18px 45px rgba(255,45,125,.10);
    }
    .tab-panel{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.76);
      padding:14px;
      box-shadow:0 20px 55px rgba(2,6,23,.06);
    }
    .tab-panel-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .subcard{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      padding:14px;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .subcard:hover{transform: translateY(-1px); box-shadow:0 18px 40px rgba(2,6,23,.10)}
    .subcard h3{margin:0; font-size:15px}
    .subcard p{margin:10px 0 0; font-size:13px; color:rgba(15,23,42,.70); line-height:1.75}
    .model-cloud{
      margin-top:10px;
      display:flex; flex-wrap:wrap; gap:8px;
    }
    .model-pill{
      font-size:12px;
      padding:8px 10px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.76);
      color:rgba(15,23,42,.78);
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .model-pill:hover{
      transform: translateY(-1px);
      border-color: rgba(124,58,237,.28);
      background: linear-gradient(135deg, rgba(124,58,237,.10), rgba(255,45,125,.08), rgba(0,212,255,.06));
    }
    .faq{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    details{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.78);
      box-shadow:0 16px 45px rgba(2,6,23,.05);
      padding:12px 12px;
      transition: border-color .18s ease, transform .18s ease;
    }
    details:hover{
      transform: translateY(-1px);
      border-color: rgba(255,45,125,.18);
    }
    summary{
      list-style:none;
      cursor:pointer;
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
      padding:2px 2px;
    }
    summary::-webkit-details-marker{display:none}
    .q{
      font-weight:800; font-size:14px;
      color:rgba(15,23,42,.90);
      line-height:1.5;
    }
    .chev{
      width:28px; height:28px; border-radius:12px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
      transition: transform .18s ease;
    }
    details[open] .chev{transform: rotate(180deg)}
    .a{
      margin-top:10px;
      color:rgba(15,23,42,.72);
      font-size:13px;
      line-height:1.8;
    }
    .testimonials{
      display:grid;
      grid-template-columns: repeat(3, minmax(0,1fr));
      gap:14px;
    }
    .quote{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(420px 180px at 0% 0%, rgba(255,45,125,.13), transparent 60%),
        radial-gradient(420px 180px at 100% 0%, rgba(0,212,255,.10), transparent 60%),
        #fff;
      padding:16px;
      box-shadow:0 18px 50px rgba(2,6,23,.06);
      position:relative;
      overflow:hidden;
      transition: transform .18s ease, box-shadow .18s ease;
    }
    .quote:hover{transform: translateY(-2px); box-shadow:0 24px 65px rgba(2,6,23,.12)}
    .quote .top{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      margin-bottom:10px;
    }
    .avatar{
      width:40px; height:40px; border-radius:16px;
      background: linear-gradient(135deg, rgba(255,45,125,.90), rgba(124,58,237,.92), rgba(0,212,255,.85));
      color:#fff;
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      box-shadow:0 18px 40px rgba(124,58,237,.22);
      flex:0 0 auto;
    }
    .who{
      display:flex; flex-direction:column; gap:4px; min-width:0;
    }
    .who b{font-size:14px; letter-spacing:-.1px}
    .who span{font-size:12px; color:var(--muted2); white-space:nowrap; overflow:hidden; text-overflow:ellipsis; max-width: 220px}
    .stars2{
      display:flex; gap:4px; align-items:center; color:rgba(15,23,42,.78); font-size:12px;
    }
    .quote p{
      margin:0;
      color:rgba(15,23,42,.72);
      line-height:1.85;
      font-size:13px;
    }
    .case-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:14px;
      align-items:start;
    }
    .case-list{
      display:grid;
      grid-template-columns: repeat(2, minmax(0,1fr));
      gap:12px;
    }
    .case-card{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.78);
      box-shadow:0 18px 45px rgba(2,6,23,.06);
      padding:14px;
      transition: transform .18s ease, box-shadow .18s ease;
      min-height: 132px;
      display:flex; flex-direction:column; gap:10px;
    }
    .case-card:hover{transform: translateY(-2px); box-shadow:0 24px 60px rgba(2,6,23,.10)}
    .case-card b{font-size:14px; letter-spacing:-.1px}
    .case-card .desc{margin:0; font-size:13px; color:rgba(15,23,42,.70); line-height:1.75}
    .case-card .meta{margin-top:auto; display:flex; gap:8px; flex-wrap:wrap}
    .case-card .meta .tag{padding:6px 10px; font-size:12px}
    .article{
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      padding:14px;
      box-shadow:0 18px 45px rgba(2,6,23,.06);
      overflow:hidden;
    }
    .article h3{margin:0; font-size:15px}
    .article ul{margin:12px 0 0; padding:0; list-style:none; display:flex; flex-direction:column; gap:10px}
    .article li{
      padding:10px 10px;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.75);
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    }
    .article li:hover{
      transform: translateY(-1px);
      border-color: rgba(124,58,237,.22);
      box-shadow:0 18px 40px rgba(2,6,23,.08);
    }
    .article a{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .article .t{
      font-weight:800;
      font-size:13px;
      line-height:1.4;
      color:rgba(15,23,42,.90);
    }
    .article .u{
      font-size:12px;
      color:var(--muted2);
      margin-top:6px;
      line-height:1.2;
      word-break:break-all;
    }
    .article .arrow{
      width:30px; height:30px; border-radius:14px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
      display:flex; align-items:center; justify-content:center;
      flex:0 0 auto;
    }
    .form-wrap{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background:
        radial-gradient(680px 260px at 10% 10%, rgba(255,45,125,.18), transparent 60%),
        radial-gradient(620px 240px at 95% 0%, rgba(0,212,255,.14), transparent 60%),
        linear-gradient(180deg, rgba(255,255,255,.86), rgba(255,255,255,.62));
      box-shadow:0 26px 70px rgba(2,6,23,.10);
      overflow:hidden;
    }
    .form-grid{
      display:grid;
      grid-template-columns: .95fr 1.05fr;
      gap:0;
      align-items:stretch;
    }
    .form-side{
      padding:18px;
      border-right:1px solid rgba(15,23,42,.08);
      background:
        linear-gradient(180deg, rgba(255,255,255,.82), rgba(255,255,255,.62));
    }
    .form-side h3{margin:0; font-size:16px}
    .form-side p{margin:10px 0 0; color:rgba(15,23,42,.70); line-height:1.85; font-size:13px}
    .form-side .bullets{
      margin:12px 0 0; padding:0;
      list-style:none;
      display:flex; flex-direction:column; gap:10px;
    }
    .form-side .bullets li{
      display:flex; gap:10px; align-items:flex-start;
      padding:10px 10px;
      border-radius:16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.75);
    }
    .form-side .dot{
      width:10px; height:10px; border-radius:50%;
      background: linear-gradient(135deg, rgba(255,45,125,.95), rgba(124,58,237,.95));
      margin-top:6px;
      box-shadow:0 12px 22px rgba(124,58,237,.22);
      flex:0 0 auto;
    }
    .form-side .btext b{
      display:block; font-size:13px; letter-spacing:-.1px;
    }
    .form-side .btext span{
      display:block; margin-top:4px;
      font-size:12px; color:var(--muted2); line-height:1.6;
    }
    .form-main{
      padding:18px;
    }
    .form-main h3{margin:0; font-size:16px}
    .form-main .hint{
      margin:8px 0 14px;
      color:rgba(15,23,42,.70);
      font-size:13px;
      line-height:1.75;
    }
    form{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
      align-items:start;
    }
    .field{
      display:flex; flex-direction:column; gap:8px;
    }
    .field.wide{grid-column:1 / -1}
    label{
      font-size:12px;
      color:rgba(15,23,42,.74);
      font-weight:800;
      letter-spacing:.2px;
    }
    input, select, textarea{
      width:100%;
      border-radius:14px;
      border:1px solid rgba(15,23,42,.12);
      background: rgba(255,255,255,.78);
      padding:12px 12px;
      outline:none;
      transition: border-color .18s ease, box-shadow .18s ease, transform .18s ease;
      color:rgba(15,23,42,.92);
    }
    textarea{min-height:104px; resize:vertical}
    input:focus, select:focus, textarea:focus{
      border-color: rgba(255,45,125,.35);
      box-shadow:0 0 0 4px rgba(255,45,125,.14);
    }
    .form-actions{
      grid-column:1 / -1;
      display:flex; gap:12px; flex-wrap:wrap; align-items:center; justify-content:flex-start;
      margin-top:4px;
    }
    .fineprint{
      color:var(--muted2);
      font-size:12px;
      line-height:1.6;
      margin:0;
    }
    .network{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:14px;
      align-items:start;
    }
    .map-card{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      padding:16px;
      box-shadow:0 20px 55px rgba(2,6,23,.06);
      overflow:hidden;
      position:relative;
    }
    .map-card:before{
      content:"";
      position:absolute; inset:-2px;
      background:
        radial-gradient(420px 240px at 10% 15%, rgba(255,45,125,.12), transparent 60%),
        radial-gradient(420px 240px at 90% 10%, rgba(0,212,255,.12), transparent 60%),
        radial-gradient(520px 280px at 55% 110%, rgba(124,58,237,.10), transparent 62%);
      pointer-events:none;
    }
    .map-inner{
      position:relative; z-index:1;
      display:flex; flex-direction:column; gap:12px;
    }
    .map-head{
      display:flex; align-items:flex-start; justify-content:space-between; gap:12px;
    }
    .map-head h3{margin:0; font-size:16px}
    .map-head p{margin:10px 0 0; color:rgba(15,23,42,.70); font-size:13px; line-height:1.8}
    .city-grid{
      display:grid;
      grid-template-columns: repeat(2, minmax(0,1fr));
      gap:10px;
      margin-top:4px;
    }
    .city{
      padding:12px 12px;
      border-radius:16px;
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.78);
      display:flex; align-items:center; gap:10px;
    }
    .city i{
      width:28px; height:28px; border-radius:12px;
      background: linear-gradient(135deg, rgba(255,45,125,.90), rgba(124,58,237,.92));
      color:#fff;
      font-style:normal;
      display:flex; align-items:center; justify-content:center;
      font-weight:900;
      box-shadow:0 16px 30px rgba(124,58,237,.22);
      flex:0 0 auto;
      font-size:13px;
    }
    .city b{font-size:13px; letter-spacing:-.1px}
    .city span{display:block; margin-top:4px; font-size:12px; color:var(--muted2); line-height:1.4}
    .help-list{
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.76);
      padding:14px;
      box-shadow:0 22px 60px rgba(2,6,23,.07);
    }
    .help-list .row{
      display:flex; gap:12px; flex-wrap:wrap;
      align-items:stretch;
    }
    .help-item{
      flex:1 1 190px;
      border-radius: var(--radius);
      border:1px solid rgba(15,23,42,.08);
      background:#fff;
      padding:14px;
      transition: transform .18s ease, box-shadow .18s ease;
      min-width: 190px;
    }
    .help-item:hover{transform: translateY(-2px); box-shadow:0 24px 60px rgba(2,6,23,.10)}
    .help-item b{display:flex; align-items:center; gap:10px; font-size:14px}
    .help-item b i{
      width:26px; height:26px; border-radius:12px;
      background: linear-gradient(135deg, rgba(0,212,255,.85), rgba(124,58,237,.9));
      color:#fff;
      display:flex; align-items:center; justify-content:center;
      font-style:normal;
      box-shadow:0 16px 30px rgba(124,58,237,.20);
      font-weight:900;
      font-size:13px;
    }
    .help-item p{margin:10px 0 0; color:rgba(15,23,42,.70); font-size:13px; line-height:1.8}
    .tag-cloud{
      display:flex; flex-wrap:wrap; gap:10px;
      padding:12px;
      border-radius: var(--radius2);
      border:1px solid rgba(15,23,42,.08);
      background: rgba(255,255,255,.78);
      box-shadow:0 18px 45px rgba(2,6,23,.06);
    }
    .cloud-item{
      padding:10px 12px;
      border-radius:999px;
      border:1px solid rgba(15,23,42,.10);
      background:#fff;
      font-size:13px;
      color:rgba(15,23,42,.78);
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
      cursor:pointer;
      user-select:none;
    }
    .cloud-item:hover{
      transform: translateY(-2px);
      border-color: rgba(255,45,125,.24);
      box-shadow:0 22px 60px rgba(2,6,23,.10);
    }
    .footer{
      margin-top:10px;
      background: linear-gradient(180deg, #0f1631 0%, #0b1020 100%);
      color:#e5e7eb;
      border-top:1px solid rgba(255,255,255,.10);
    }
    .footer .container{padding:30px 0 18px}
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap:16px;
      align-items:start;
    }
    .footer-brand{
      display:flex; gap:14px; align-items:flex-start;
    }
    .footer .ai-page-logo{
      width:46px; height:46px; border-radius:18px;
      box-shadow:0 18px 45px rgba(0,212,255,.18);
      background:rgba(255,255,255,.92);
    }
    .footer h3{margin:0; font-size:16px; color:#fff}
    .footer p{
      margin:10px 0 0;
      color:rgba(229,231,235,.86);
      font-size:13px;
      line-height:1.85;
    }
    .footer-links{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap:12px;
    }
    .fblock{
      border-radius: var(--radius);
      border:1px solid rgba(255,255,255,.12);
      background: rgba(255,255,255,.05);
      padding:14px;
    }
    .fblock b{
      display:block;
      color:#fff;
      font-size:14px;
      margin-bottom:10px;
    }
    .fblock a{
      display:block;
      color:rgba(229,231,235,.86);
      font-size:13px;
      padding:8px 0;
      border-bottom:1px dashed rgba(255,255,255,.10);
    }
    .fblock a:last-child{border-bottom:none}
    .fblock a:hover{color:#fff}
    .footer-bottom{
      display:flex; align-items:center; justify-content:space-between; gap:12px;
      padding:14px 0 18px;
      border-top:1px solid rgba(255,255,255,.10);
      margin-top:18px;
      flex-wrap:wrap;
    }
    .copyright{
      color:rgba(229,231,235,.85);
      font-size:12px;
    }
    .mini-social{
      display:flex; gap:10px; flex-wrap:wrap;
      align-items:center;
    }
    .mini-social a{
      color:rgba(229,231,235,.88);
      border:1px solid rgba(255,255,255,.14);
      background: rgba(255,255,255,.06);
      padding:10px 12px;
      border-radius:14px;
      font-size:12px;
      transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease;
    }
    .mini-social a:hover{
      transform: translateY(-1px);
      border-color: rgba(255,45,125,.40);
      box-shadow:0 18px 45px rgba(255,45,125,.10);
      color:#fff;
    }
    .floating{
      position:fixed;
      right:14px;
      bottom:16px;
      z-index:80;
      display:flex; flex-direction:column; gap:10px;
      align-items:flex-end;
    }
    .float-card{
      width:54px; height:54px;
      border-radius:18px;
      border:1px solid rgba(15,23,42,.10);
      background: rgba(255,255,255,.80);
      backdrop-filter: blur(10px) saturate(140%);
      box-shadow:0 22px 60px rgba(2,6,23,.16);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
      user-select:none;
    }
    .float-card:hover{transform: translateY(-2px); border-color: rgba(255,45,125,.24); box-shadow:0 26px 70px rgba(2,6,23,.20)}
    .float-card svg{display:block}
    .toast{
      position:fixed;
      left:50%;
      transform: translateX(-50%);
      bottom:88px;
      background: rgba(15,23,42,.92);
      color:#fff;
      padding:10px 12px;
      border-radius:14px;
      font-size:12px;
      box-shadow:0 22px 60px rgba(2,6,23,.25);
      opacity:0;
      pointer-events:none;
      transition: opacity .2s ease, transform .2s ease;
      z-index:90;
    }
    .toast.show{
      opacity:1;
      transform: translateX(-50%) translateY(-4px);
    }
    .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; padding:20px}
      .hero-left{min-height: unset}
      .grid-3{grid-template-columns: 1fr}
      .grid-2{grid-template-columns: 1fr}
      .timeline{grid-template-columns: 1fr 1fr}
      .testimonials{grid-template-columns: 1fr}
      .faq{grid-template-columns: 1fr}
      .case-grid{grid-template-columns: 1fr}
      .case-list{grid-template-columns: 1fr}
      .form-grid{grid-template-columns: 1fr}
      .form-side{border-right:none; border-bottom:1px solid rgba(15,23,42,.08)}
      .network{grid-template-columns: 1fr}
      .footer-grid{grid-template-columns: 1fr}
      .footer-links{grid-template-columns: 1fr}
      .nav-links{display:none}
      .menu-btn{display:inline-flex; align-items:center; justify-content:center}
      .mobile-drawer{display:block}
      .mobile-drawer[data-open="false"]{display:none}
    }
    @media (max-width: 520px){
      .hero h1{font-size:30px}
      .hero-grid{padding:16px}
      .metrics{grid-template-columns: 1fr}
      .timeline{grid-template-columns: 1fr}
      .city-grid{grid-template-columns: 1fr}
      form{grid-template-columns: 1fr}
      .field.wide{grid-column:auto}
    }
    @media (prefers-reduced-motion: reduce){
      *{scroll-behavior:auto !important}
      .reveal{opacity:1; transform:none}
      .spark:after{animation:none}
    }