:root{
      --bg:#0b0614;
      --bg2:#130a22;
      --panel:rgba(20,12,38,.78);
      --panel-2:rgba(255,255,255,.06);
      --card:rgba(255,255,255,.08);
      --stroke:rgba(255,255,255,.12);
      --text:#f4ecff;
      --muted:#c8bddf;
      --brand:#ff4fd8;
      --brand2:#8f6bff;
      --accent:#31f0ff;
      --good:#48f1a6;
      --shadow:0 16px 50px rgba(0,0,0,.36);
      --container:1180px;
      --radius:22px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,79,216,.22), transparent 25%),
        radial-gradient(circle at top right, rgba(49,240,255,.16), transparent 22%),
        linear-gradient(180deg, #090510 0%, var(--bg) 36%, var(--bg2) 100%);
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    .topbar{
      position:sticky;top:0;z-index:60;
      backdrop-filter:blur(16px);
      background:rgba(8,5,16,.74);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      padding:14px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{
      width:42px;height:42px;object-fit:contain;border-radius:12px;background:rgba(255,255,255,.06);padding:6px;border:1px solid rgba(255,255,255,.09)
    }
    .brand-txt{min-width:0}
    .brand-txt strong{display:block;font-size:16px;letter-spacing:.5px}
    .brand-txt span{display:block;color:var(--muted);font-size:12px;margin-top:2px}
    .menu-btn{
      display:none;border:1px solid rgba(255,255,255,.12);background:rgba(255,255,255,.06);color:var(--text);
      border-radius:14px;padding:10px 12px;font-size:14px
    }
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{color:#eadfff;font-size:13px;opacity:.92;transition:.2s ease}
    .navlinks a:hover,.navlinks a.active{color:white;opacity:1}
    .home-link{
      padding:10px 16px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:white;font-weight:700;box-shadow:0 10px 25px rgba(255,79,216,.22)
    }
    main{display:block}
    .hero{
      padding:58px 0 28px;
      position:relative;
      overflow:hidden;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:50%;filter:blur(18px);pointer-events:none;opacity:.55
    }
    .hero::before{width:280px;height:280px;background:rgba(255,79,216,.18);right:-90px;top:30px}
    .hero::after{width:220px;height:220px;background:rgba(49,240,255,.12);left:-80px;bottom:-40px}
    .hero-grid{
      display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:stretch;
    }
    .hero-copy,.hero-side,.section-card,.glass{
      background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.05));
      border:1px solid var(--stroke);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
    }
    .hero-copy{padding:34px}
    .kicker{
      display:inline-flex;align-items:center;gap:8px;
      padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.06);
      color:#f6e8ff;font-size:13px;border:1px solid rgba(255,255,255,.1)
    }
    h1{margin:18px 0 14px;font-size:clamp(32px,5vw,54px);line-height:1.08}
    .lead{color:var(--muted);font-size:16px;line-height:1.9;max-width:60ch}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:14px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;transition:.2s ease;
      cursor:pointer
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 14px 30px rgba(143,107,255,.25)}
    .btn-secondary{background:rgba(255,255,255,.06);color:var(--text);border-color:rgba(255,255,255,.12)}
    .btn:hover,.card:hover,.case:hover,.review:hover,.article:hover{transform:translateY(-3px)}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .mini-stat{
      padding:16px;border-radius:18px;background:rgba(12,10,25,.42);
      border:1px solid rgba(255,255,255,.08)
    }
    .mini-stat strong{display:block;font-size:22px}
    .mini-stat span{display:block;color:var(--muted);font-size:13px;margin-top:4px;line-height:1.6}
    .chip-row{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.09);font-size:13px;color:#f0e7ff}
    section{padding:26px 0}
    .section-head{display:flex;justify-content:space-between;gap:16px;align-items:end;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,34px)}
    .section-head p{margin:0;color:var(--muted);max-width:64ch;line-height:1.8}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .card{
      background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.045));
      border:1px solid rgba(255,255,255,.1);
      border-radius:20px;
      padding:20px;
      box-shadow:var(--shadow);
      transition:transform .22s ease, border-color .22s ease
    }
    .card h3,.card h4{margin:0 0 10px}
    .card p,.card li{color:var(--muted);line-height:1.8}
    .metric{font-size:28px;font-weight:800;color:#fff}
    .metric small{font-size:13px;color:var(--muted);font-weight:500}
    .list-clean{margin:0;padding:0;list-style:none}
    .list-clean li{padding:10px 0;border-top:1px solid rgba(255,255,255,.08)}
    .list-clean li:first-child{border-top:none;padding-top:0}
    .pill-list{display:flex;flex-wrap:wrap;gap:10px}
    .pill-list span{padding:9px 12px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);font-size:13px}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:92px 1fr;gap:14px;align-items:start;padding:16px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)}
    .timeline-item b{color:#fff}
    .compare-wrap{overflow:auto;border-radius:20px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.04)}
    table{width:100%;border-collapse:collapse;min-width:820px}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08);color:var(--muted)}
    th{color:#fff;background:rgba(255,255,255,.05)}
    tr:hover td{background:rgba(255,255,255,.025)}
    .rating{
      display:flex;align-items:center;gap:10px;flex-wrap:wrap
    }
    .stars{color:#ffb347;font-size:18px;letter-spacing:2px}
    .faq details{
      background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.09);border-radius:16px;padding:0 16px
    }
    .faq details+details{margin-top:12px}
    .faq summary{cursor:pointer;list-style:none;padding:16px 0;font-weight:700;color:#fff}
    .faq summary::-webkit-details-marker{display:none}
    .faq .answer{padding:0 0 16px;color:var(--muted);line-height:1.8}
    .reviews .review,.case,.article{
      background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.045));
      border:1px solid rgba(255,255,255,.1);border-radius:20px;padding:18px;transition:.22s ease
    }
    .review .meta{display:flex;justify-content:space-between;gap:10px;align-items:center;margin-bottom:10px}
    .tag{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(49,240,255,.1);color:#c9fbff;border:1px solid rgba(49,240,255,.18);font-size:12px}
    .form{
      display:grid;gap:12px
    }
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    input,select,textarea{
      width:100%;padding:14px 14px;border-radius:14px;border:1px solid rgba(255,255,255,.12);
      background:rgba(9,7,18,.55);color:#fff;outline:none
    }
    textarea{min-height:120px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#a99cc2}
    input:focus,select:focus,textarea:focus{border-color:rgba(255,79,216,.6);box-shadow:0 0 0 3px rgba(255,79,216,.12)}
    .footer{
      padding:24px 0 34px;
      border-top:1px solid rgba(255,255,255,.08);
      background:rgba(8,5,16,.6);
      color:#efe7ff
    }
    .footer a{color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:start}
    .footer small,.footer p{color:#cdbfe8;line-height:1.8}
    .float-box{
      position:fixed;right:16px;bottom:16px;z-index:70;display:grid;gap:10px
    }
    .float-btn{
      display:flex;align-items:center;justify-content:center;gap:8px;
      width:52px;height:52px;border-radius:16px;background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:#fff;box-shadow:0 16px 30px rgba(0,0,0,.28)
    }
    .backtop{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
    .section-card{padding:18px}
    .image-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .image-card{border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05)}
    .image-card img{width:100%;height:auto;display:block}
    .subtle{color:var(--muted)}
    .scroll-reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
    .scroll-reveal.visible{opacity:1;transform:none}
    .muted-box{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:16px}
    .service-map{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .service-map div{padding:14px;border-radius:16px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);text-align:center;color:#efe7ff}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.form-grid,.image-row,.service-map{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 760px){
      .menu-btn{display:inline-flex}
      .navlinks{
        display:none;position:absolute;left:16px;right:16px;top:68px;
        flex-direction:column;align-items:flex-start;padding:14px;background:rgba(9,6,18,.96);
        border:1px solid rgba(255,255,255,.1);border-radius:18px;box-shadow:var(--shadow)
      }
      .navlinks.open{display:flex}
      .hero{padding-top:34px}
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.form-grid,.image-row,.service-map{grid-template-columns:1fr}
      .timeline-item{grid-template-columns:1fr}
      .section-head{flex-direction:column;align-items:flex-start}
    }