:root{
      --bg:#0e1020;
      --bg2:#171a33;
      --card:#151833cc;
      --card2:#1b1f3bcc;
      --line:rgba(255,255,255,.12);
      --text:#f4ecff;
      --muted:#c9c0dd;
      --pink:#ff4fd8;
      --purple:#8f66ff;
      --cyan:#7ae7ff;
      --gold:#ffd27d;
      --shadow:0 20px 60px rgba(0,0,0,.32);
      --radius:22px;
      --radius2:16px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;
      background:
        radial-gradient(circle at top left, rgba(255,79,216,.18), transparent 26%),
        radial-gradient(circle at top right, rgba(122,231,255,.12), transparent 22%),
        radial-gradient(circle at 20% 20%, rgba(143,102,255,.12), transparent 30%),
        linear-gradient(180deg, #090b17 0%, #11142a 38%, #0f1121 100%);
      color:var(--text);
      line-height:1.65;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max), calc(100% - 32px)); margin:0 auto}
    header{
      position:sticky;top:0;z-index:50;
      background:rgba(9,11,23,.72);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(255,255,255,.08);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:18px;
      padding:14px 0;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .ai-page-logo{width:42px;height:42px;object-fit:contain;border-radius:12px;background:rgba(255,255,255,.05);padding:4px;border:1px solid rgba(255,255,255,.1)}
    .brand h2{margin:0;font-size:1.02rem;letter-spacing:.5px}
    .brand span{display:block;color:var(--muted);font-size:.82rem}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#ece5ff;opacity:.9}
    .nav-links a:hover{color:#fff}
    .menu-btn{
      display:none;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;
      border-radius:12px;padding:10px 12px;cursor:pointer
    }
    .topbar{
      padding:18px 0 10px;
    }
    .hero{
      padding:34px 0 18px;
    }
    .hero-wrap{
      position:relative;
      display:grid;
      grid-template-columns:1.18fr .82fr;
      gap:22px;
      align-items:stretch;
    }
    .hero-main,.hero-side,.section-card,.price-card,.faq-item,.review-card,.article-card,.form-card,.compare-card,.step-card,.service-card,.timeline-card,.tag-cloud,.network-card,.quality-card{
      background:linear-gradient(180deg, rgba(23,26,51,.88), rgba(15,18,39,.9));
      border:1px solid rgba(255,255,255,.1);
      box-shadow:var(--shadow);
      border-radius:var(--radius);
    }
    .hero-main{padding:30px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      padding:7px 12px;border-radius:999px;
      background:rgba(255,79,216,.12); color:#ffb7f2;
      border:1px solid rgba(255,79,216,.24);
      font-size:.88rem
    }
    h1{margin:18px 0 14px;font-size:clamp(2rem,4vw,3.9rem);line-height:1.06}
    .hero p{margin:0;color:#e2d9f3;font-size:1.05rem;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      padding:13px 18px;border-radius:14px;font-weight:700;
      border:1px solid transparent;transition:.25s ease;cursor:pointer;
    }
    .btn-primary{
      background:linear-gradient(135deg, var(--pink), var(--purple));
      color:#fff; box-shadow:0 14px 32px rgba(255,79,216,.18)
    }
    .btn-primary:hover{transform:translateY(-2px);filter:saturate(1.07)}
    .btn-ghost{border-color:rgba(255,255,255,.18);color:#fff;background:rgba(255,255,255,.04)}
    .btn-ghost:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
    .hero-points{
      margin-top:24px;display:grid;grid-template-columns:repeat(3,1fr);gap:12px
    }
    .mini-stat{
      padding:15px;border-radius:16px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)
    }
    .mini-stat strong{display:block;font-size:1.18rem}
    .mini-stat span{color:var(--muted);font-size:.88rem}
    .hero-side{padding:18px;display:grid;gap:14px}
    .panel{
      border-radius:18px;
      background:linear-gradient(160deg, rgba(255,79,216,.14), rgba(122,231,255,.08));
      border:1px solid rgba(255,255,255,.1);
      padding:18px;
    }
    .panel h3{margin:0 0 8px;font-size:1.08rem}
    .panel p{margin:0;color:#efe7ff;font-size:.96rem}
    .home-link{display:inline-flex;margin-top:12px;color:#fff;font-weight:700}
    .home-link:hover{color:var(--gold)}
    .stats-grid,.services-grid,.cases-grid,.reviews-grid,.features-grid,.compare-grid,.articles-grid,.network-grid,.timeline-grid,.faq-grid,.trust-grid{
      display:grid;gap:16px
    }
    .stats-grid{grid-template-columns:repeat(4,1fr)}
    .section{padding:22px 0}
    .section-head{
      display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px
    }
    .section-head h2{margin:0;font-size:1.7rem}
    .section-head p{margin:0;color:var(--muted);max-width:66ch}
    .section-card{padding:22px}
    .stats-card{
      padding:18px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08)
    }
    .stats-card strong{display:block;font-size:1.8rem;color:#fff}
    .stats-card span{color:var(--muted);font-size:.93rem}
    .services-grid{grid-template-columns:repeat(3,1fr)}
    .service-card{padding:20px;min-height:100%}
    .service-card h3{margin:0 0 10px;font-size:1.1rem}
    .service-card p,.service-card li{color:#ddd5ee}
    .service-card ul{margin:10px 0 0;padding-left:18px}
    .tag-cloud{padding:18px;display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);color:#f0ebff;font-size:.92rem}
    .grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .step-card,.compare-card,.review-card,.article-card,.form-card,.network-card,.timeline-card,.quality-card,.faq-item,.price-card{padding:20px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step-card .n{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg, var(--pink), var(--purple));font-weight:800}
    .step-card h3{margin:12px 0 8px}
    .table-wrap{overflow:auto;border-radius:18px;border:1px solid rgba(255,255,255,.1)}
    table{width:100%;border-collapse:collapse;min-width:760px;background:rgba(11,13,28,.38)}
    th,td{padding:15px 14px;text-align:left;border-bottom:1px solid rgba(255,255,255,.08);color:#eee8ff;vertical-align:top}
    th{background:rgba(255,255,255,.06);color:#fff}
    .badge{display:inline-flex;padding:5px 10px;border-radius:999px;font-size:.84rem;background:rgba(122,231,255,.12);border:1px solid rgba(122,231,255,.2);color:#c6f7ff}
    .rating{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .stars{color:#ffd27d;letter-spacing:2px}
    .compare-grid{grid-template-columns:1.05fr .95fr}
    .price-list{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card h3{margin:0 0 10px}
    .price-card .price{font-size:1.7rem;font-weight:800;color:#fff}
    .price-card ul{padding-left:18px;color:#ddd5ee}
    .reviews-grid{grid-template-columns:repeat(3,1fr)}
    .review-card .role{color:#ffb7f2;font-size:.9rem}
    .review-card p{margin:10px 0 0;color:#e9e0f8}
    .cases-grid,.articles-grid{grid-template-columns:repeat(3,1fr)}
    .article-card h3,.quality-card h3,.network-card h3{margin:0 0 10px}
    .article-card .meta{color:var(--muted);font-size:.9rem;margin-top:10px}
    .faq-grid{grid-template-columns:1fr}
    .faq-item button{
      width:100%;text-align:left;background:none;border:none;color:#fff;font-size:1rem;font-weight:700;padding:0;cursor:pointer
    }
    .faq-item .answer{max-height:0;overflow:hidden;transition:max-height .28s ease;color:#ddd5ee}
    .faq-item.open .answer{max-height:180px;margin-top:10px}
    .faq-item.open{border-color:rgba(255,79,216,.28)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    label{display:block;font-size:.92rem;color:#e9e0f8;margin-bottom:8px}
    input,select,textarea{
      width:100%;border-radius:14px;border:1px solid rgba(255,255,255,.12);
      background:rgba(255,255,255,.04);color:#fff;padding:13px 14px;font:inherit;outline:none
    }
    textarea{min-height:120px;resize:vertical}
    input::placeholder,textarea::placeholder{color:#ad9bcf}
    .full{grid-column:1/-1}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:8px}
    .help-list{display:grid;gap:10px}
    .help-item{display:flex;gap:10px;align-items:flex-start;color:#e9e0f8}
    .help-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg, var(--cyan), var(--pink));margin-top:8px;flex:none}
    .timeline-grid{grid-template-columns:repeat(4,1fr)}
    .timeline-card .time{color:#aeefff;font-weight:700}
    footer{
      margin-top:18px;padding:24px 0 30px;
      background:rgba(8,10,20,.9);
      border-top:1px solid rgba(255,255,255,.08);
      color:#e8def9
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:start}
    .footer-links{display:flex;flex-wrap:wrap;gap:12px}
    .footer-links a{color:#f3ebff}
    .footer-links a:hover{color:var(--gold)}
    .float-actions{
      position:fixed;right:16px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-actions a,.float-actions button{
      width:48px;height:48px;border-radius:16px;border:1px solid rgba(255,255,255,.12);
      background:linear-gradient(135deg, rgba(255,79,216,.9), rgba(143,102,255,.9)); color:#fff;
      display:grid;place-items:center;box-shadow:var(--shadow);cursor:pointer
    }
    .return-top{opacity:0;pointer-events:none;transform:translateY(8px);transition:.25s ease}
    .return-top.show{opacity:1;pointer-events:auto;transform:none}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    .muted{color:var(--muted)}
    .kefu-card{display:grid;grid-template-columns:110px 1fr;gap:14px;align-items:center}
    .kefu-card img{border-radius:16px;border:1px solid rgba(255,255,255,.12);background:#fff;padding:6px}
    .banner-row{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .ai-page-image{width:100%;height:auto;border-radius:18px;border:1px solid rgba(255,255,255,.12);box-shadow:0 14px 28px rgba(0,0,0,.18)}
    .note{font-size:.88rem;color:#cabee6}
    @media (max-width: 1024px){
      .hero-wrap,.compare-grid,.footer-grid,.grid-2,.steps,.timeline-grid,.services-grid,.price-list,.reviews-grid,.cases-grid,.articles-grid,.stats-grid{grid-template-columns:1fr 1fr}
      .hero-points{grid-template-columns:1fr}
      .banner-row{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .menu-btn{display:inline-flex}
      .nav-links{
        position:absolute;left:16px;right:16px;top:68px;
        display:none;flex-direction:column;align-items:flex-start;
        padding:14px;background:rgba(11,13,28,.96);border:1px solid rgba(255,255,255,.1);border-radius:18px
      }
      .nav-links.open{display:flex}
      .hero-wrap,.compare-grid,.footer-grid,.grid-2,.steps,.timeline-grid,.services-grid,.price-list,.reviews-grid,.cases-grid,.articles-grid,.stats-grid,.form-grid{grid-template-columns:1fr}
      .hero-main,.hero-side,.section-card,.price-card,.faq-item,.review-card,.article-card,.form-card,.compare-card,.step-card,.service-card,.timeline-card,.tag-cloud,.network-card,.quality-card{padding:18px}
      .hero{padding-top:22px}
      .hero p{font-size:1rem}
      h1{font-size:2.1rem}
      .section-head{flex-direction:column;align-items:flex-start}
      .kefu-card{grid-template-columns:1fr}
      .float-actions{right:12px;bottom:12px}
      .container{width:min(var(--max), calc(100% - 20px))}
    }