:root{
      --bg:#0c0b18;
      --bg2:#16132a;
      --panel:#141125;
      --panel2:#1b1730;
      --line:rgba(255,255,255,.09);
      --line2:rgba(255,255,255,.14);
      --text:#f4efff;
      --muted:#c9c0de;
      --muted2:#9f94bf;
      --pink:#ff4fd8;
      --pink2:#ff7ae6;
      --purple:#8d5bff;
      --cyan:#53d9ff;
      --gold:#ffd36e;
      --ok:#71f0c6;
      --shadow:0 24px 70px rgba(6, 5, 20, .48);
      --radius:20px;
      --radius2:28px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
      background:
        radial-gradient(circle at 20% 10%, rgba(255,79,216,.18), transparent 28%),
        radial-gradient(circle at 80% 15%, rgba(83,217,255,.14), transparent 24%),
        radial-gradient(circle at 50% 80%, rgba(141,91,255,.14), transparent 30%),
        linear-gradient(180deg, #0b0a14 0%, #111022 100%);
      color:var(--text);
      line-height:1.7;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{
      width:min(var(--container), calc(100% - 32px));
      margin:0 auto;
    }
    .site-header{
      position:sticky;top:0;z-index:40;
      backdrop-filter:blur(18px);
      background:linear-gradient(180deg, rgba(10,10,18,.92), rgba(10,10,18,.72));
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;
    }
    .brand{
      display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.3px;
      min-width:0;
    }
    .brand .ai-page-logo{
      width:42px;height:42px;object-fit:contain;border-radius:12px;background:rgba(255,255,255,.06);
      border:1px solid rgba(255,255,255,.12);padding:4px;
    }
    .brand-text{display:flex;flex-direction:column;line-height:1.1;min-width:0}
    .brand-text strong{font-size:16px}
    .brand-text span{font-size:12px;color:var(--muted2)}
    .menu-toggle{
      display:none;border:1px solid rgba(255,255,255,.14);background:rgba(255,255,255,.06);color:var(--text);
      border-radius:14px;padding:10px 12px;font-size:14px;
    }
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:var(--muted);padding:8px 10px;border-radius:12px;transition:.2s ease}
    .nav-links a:hover{color:#fff;background:rgba(255,255,255,.06)}
    .nav-cta{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      background:linear-gradient(135deg, var(--pink), var(--purple));
      color:#fff;padding:11px 16px;border-radius:999px;font-weight:700;
      box-shadow:0 12px 28px rgba(255,79,216,.25);
      transition:.25s ease;
      white-space:nowrap;
    }
    .nav-cta:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(255,79,216,.32)}
    .mobile-panel{display:none;padding:0 0 16px}
    .mobile-panel .nav-links{
      flex-direction:column;align-items:stretch;gap:8px;background:rgba(255,255,255,.03);
      border:1px solid rgba(255,255,255,.08);border-radius:18px;padding:10px;
    }
    .mobile-panel .nav-links a{padding:12px 12px;background:rgba(255,255,255,.02)}
    .hero{
      padding:34px 0 22px;
      position:relative;
      overflow:hidden;
    }
    .hero::before{
      content:"";
      position:absolute;inset:-2px;
      background:
        linear-gradient(120deg, rgba(255,79,216,.11), transparent 28%),
        linear-gradient(300deg, rgba(83,217,255,.11), transparent 30%);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      display:grid;grid-template-columns:1.18fr .82fr;gap:22px;align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.feature-card,.review-card,.faq-item,.info-card,.form-card,.compare-card,.article-card,.case-card,.metric-card{
      background:linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.03));
      border:1px solid rgba(255,255,255,.09);
      box-shadow:var(--shadow);
      border-radius:var(--radius2);
    }
    .hero-main{padding:34px;position:relative;overflow:hidden}
    .hero-main::after{
      content:"";
      position:absolute;right:-10%;top:-10%;
      width:260px;height:260px;border-radius:50%;
      background:radial-gradient(circle, rgba(255,79,216,.18), transparent 65%);
      filter:blur(8px);
    }
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      color:#ffe8fc;background:rgba(255,79,216,.1);
      border:1px solid rgba(255,79,216,.18);font-size:13px;font-weight:700;
    }
    h1{margin:14px 0 14px;font-size:clamp(30px,4.2vw,54px);line-height:1.08;letter-spacing:-.8px}
    .hero p{color:var(--muted);margin:0}
    .hero-lead{max-width:62ch;font-size:16px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:12px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;
      transition:.22s ease;cursor:pointer;
    }
    .btn-primary{background:linear-gradient(135deg, var(--pink), var(--purple));color:#fff}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 26px rgba(141,91,255,.24)}
    .btn-secondary{background:rgba(255,255,255,.05);color:var(--text);border-color:rgba(255,255,255,.11)}
    .btn-secondary:hover{background:rgba(255,255,255,.08);transform:translateY(-1px)}
    .hero-points{
      margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;
    }
    .pill{
      padding:8px 12px;border-radius:999px;font-size:13px;
      background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);color:#efe7ff;
    }
    .hero-side{padding:20px;display:grid;gap:14px}
    .hero-side .stat-top{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric-card{padding:16px;background:linear-gradient(180deg, rgba(141,91,255,.12), rgba(255,255,255,.03))}
    .metric-card strong{display:block;font-size:24px;line-height:1.1}
    .metric-card span{color:var(--muted2);font-size:13px}
    .hero-note{
      padding:16px;border-radius:18px;background:rgba(83,217,255,.08);border:1px solid rgba(83,217,255,.16);
    }
    .hero-note h3{margin:0 0 8px;font-size:16px}
    .hero-note p{font-size:14px}
    .section{
      padding:22px 0;
    }
    .section-head{
      display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:14px;
    }
    .section-head h2{margin:0;font-size:clamp(22px,2.6vw,34px)}
    .section-head p{margin:0;color:var(--muted);max-width:64ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .feature-card,.info-card,.review-card,.article-card,.case-card,.compare-card,.faq-item,.form-card{padding:20px}
    .feature-card h3,.info-card h3,.review-card h3,.article-card h3,.case-card h3{margin:10px 0 8px;font-size:18px}
    .feature-card p,.info-card p,.review-card p,.article-card p,.case-card p{margin:0;color:var(--muted)}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(255,79,216,.2), rgba(141,91,255,.14));
      border:1px solid rgba(255,255,255,.08);
      color:#fff;font-size:18px;
    }
    .section-card{padding:22px}
    .badge-row{display:flex;flex-wrap:wrap;gap:10px}
    .tag{
      display:inline-flex;align-items:center;gap:6px;
      padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
      color:#f0eaff;font-size:13px
    }
    .timeline{display:grid;gap:12px}
    .step{
      display:grid;grid-template-columns:52px 1fr;gap:14px;align-items:start;
      padding:16px;border-radius:18px;background:rgba(255,255,255,.03);border:1px solid rgba(255,255,255,.08);
    }
    .step-num{
      width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg, var(--pink), var(--purple));font-weight:800
    }
    .step h3{margin:0 0 6px;font-size:17px}
    .step p{margin:0;color:var(--muted)}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(255,255,255,.08)}
    table{width:100%;border-collapse:collapse;min-width:840px;background:rgba(255,255,255,.02)}
    th,td{padding:14px 16px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08);vertical-align:top}
    th{background:rgba(255,255,255,.05);color:#fff;font-size:14px}
    td{color:var(--muted)}
    .highlight{color:#fff;font-weight:700}
    .score-box{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:14px
    }
    .score{
      padding:18px;border-radius:18px;background:rgba(255,79,216,.1);border:1px solid rgba(255,79,216,.18)
    }
    .score strong{font-size:28px;display:block;line-height:1.1}
    .score span{color:#ffdff8;font-size:13px}
    .accordion{display:grid;gap:10px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;text-align:left;background:transparent;color:#fff;border:0;
      padding:18px 20px;font-size:16px;font-weight:700;display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer
    }
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease,padding .28s ease;color:var(--muted);padding:0 20px}
    .faq-item.active .faq-a{max-height:220px;padding:0 20px 18px}
    .faq-item.active .faq-q .arrow{transform:rotate(180deg)}
    .arrow{transition:transform .2s ease}
    .review-card .meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .stars{color:#ffd36e;letter-spacing:2px}
    .avatar{
      width:42px;height:42px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg, rgba(83,217,255,.18), rgba(141,91,255,.18));border:1px solid rgba(255,255,255,.08);
      font-weight:800
    }
    .review-top{display:flex;align-items:center;gap:12px}
    .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .article-card .kicker{font-size:13px;color:#ffd9fb}
    .article-card .date{font-size:13px;color:var(--muted2);margin-top:10px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:block;font-size:14px;color:#efe7ff;margin-bottom:8px}
    input,select,textarea{
      width:100%;border-radius:14px;border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.05);
      color:#fff;padding:13px 14px;font:inherit;outline:none;
    }
    textarea{min-height:124px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#9d93be}
    .full{grid-column:1/-1}
    .submit-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:8px}
    .small{font-size:13px;color:var(--muted2)}
    .footer{
      padding:18px 0 28px;margin-top:10px;border-top:1px solid rgba(255,255,255,.08);
      background:linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01));
      color:var(--muted);
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:start}
    .footer a{color:#fff}
    .footer h3{margin:0 0 10px;font-size:16px;color:#fff}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 10px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:50;display:grid;gap:10px;
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px;display:grid;place-items:center;
      background:linear-gradient(135deg, var(--pink), var(--purple));color:#fff;border:0;
      box-shadow:0 18px 30px rgba(0,0,0,.28);cursor:pointer
    }
    .float-btn.secondary{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12)}
    .floating-card{
      position:fixed;right:16px;bottom:82px;width:min(320px, calc(100vw - 32px));z-index:49;
      padding:14px;border-radius:20px;background:rgba(16,13,30,.96);border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow);display:none
    }
    .floating-card.show{display:block}
    .qrcode{display:grid;grid-template-columns:100px 1fr;gap:12px;align-items:center}
    .qrcode img{width:100px;height:100px;object-fit:cover;border-radius:16px;border:1px solid rgba(255,255,255,.08)}
    .section-anchor{scroll-margin-top:94px}
    .muted{color:var(--muted)}
    .list{
      margin:12px 0 0;padding:0 0 0 18px;color:var(--muted)
    }
    .list li{margin:8px 0}
    .network{
      display:grid;grid-template-columns:repeat(5,1fr);gap:10px
    }
    .network span{
      padding:12px 10px;border-radius:14px;text-align:center;background:rgba(255,255,255,.04);
      border:1px solid rgba(255,255,255,.08);color:#efe8ff;font-size:13px
    }
    .article-card a,.case-card a{color:#fff;font-weight:700}
    .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
    .reveal.in{opacity:1;transform:translateY(0)}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.article-list,.footer-grid,.form-grid,.network{grid-template-columns:1fr}
      .section-head{align-items:start;flex-direction:column}
      .score-box{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel.show{display:block}
      .hero-main{padding:26px}
      .hero-side{order:-1}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .nav{min-height:68px}
      .brand-text span{display:none}
      .hero{padding-top:18px}
      .hero-main h1{font-size:30px}
      .hero-main,.hero-side,.section-card,.feature-card,.review-card,.faq-item,.info-card,.form-card,.compare-card,.article-card,.case-card,.metric-card{border-radius:18px}
      .hero-actions .btn{width:100%}
      .qrcode{grid-template-columns:1fr}
    }