:root{
      --bg:#f5fbfb;
      --bg2:#edf8f7;
      --card:#ffffff;
      --line:#d7e9e7;
      --text:#163034;
      --muted:#577277;
      --brand:#0c8a8c;
      --brand2:#19b8aa;
      --brand3:#1d7bd6;
      --accent:#f5a524;
      --shadow:0 18px 50px rgba(18, 62, 67, .10);
      --radius:22px;
      --radius2:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at 20% 0%, rgba(25,184,170,.12), transparent 28%),
        radial-gradient(circle at 100% 10%, rgba(29,123,214,.11), transparent 23%),
        linear-gradient(180deg, var(--bg) 0%, #fff 38%, var(--bg2) 100%);
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{max-width:var(--container);margin:0 auto;padding:0 20px}
    .topbar{
      position:sticky;top:0;z-index:50;
      backdrop-filter:blur(16px);
      background:rgba(245,251,251,.82);
      border-bottom:1px solid rgba(215,233,231,.8);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;
    }
    .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:#fff;padding:5px;box-shadow:0 8px 24px rgba(18,62,67,.08)}
    .brand strong{display:block;font-size:1.02rem;letter-spacing:.5px}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .navlinks{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .navlinks a{font-size:.95rem;color:#254247;padding:9px 10px;border-radius:999px;transition:.25s}
    .navlinks a:hover,.navlinks a:focus{background:#e5f7f5;color:var(--brand)}
    .nav-cta{display:flex;align-items:center;gap:10px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:1px solid transparent;border-radius:999px;padding:11px 18px;
      font-weight:700;transition:.25s;cursor:pointer;white-space:nowrap;
      box-shadow:none;
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 12px 28px rgba(12,138,140,.22)}
    .btn-primary:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(12,138,140,.28)}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-ghost:hover{border-color:#b6d8d5;transform:translateY(-1px)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;color:var(--text)}
    .hero{padding:54px 0 24px;position:relative;overflow:hidden}
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:50%;filter:blur(8px);pointer-events:none
    }
    .hero::before{width:260px;height:260px;right:-70px;top:0;background:rgba(25,184,170,.15)}
    .hero::after{width:220px;height:220px;left:-60px;bottom:0;background:rgba(29,123,214,.12)}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:26px;align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.price-card,.faq-item,.review-card,.case-card,.article-card,.form-card,.timeline-card,.network-card{
      background:rgba(255,255,255,.88);border:1px solid rgba(215,233,231,.9);border-radius:var(--radius);box-shadow:var(--shadow)
    }
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.88rem;font-weight:700;color:#0a6f73;background:#e9fbf9;border:1px solid #cdefeb;border-radius:999px;padding:7px 12px}
    h1{font-size:clamp(2rem,4vw,3.6rem);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .hero p{color:var(--muted);margin:0 0 22px;font-size:1.03rem}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:18px 0 24px}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}
    .point{
      border:1px solid #d9ecea;border-radius:18px;padding:14px;background:linear-gradient(180deg,#fff, #f7fcfb)
    }
    .point strong{display:block;font-size:1rem;margin-bottom:5px}
    .point span{font-size:.9rem;color:var(--muted)}
    .hero-panel{padding:24px;display:flex;flex-direction:column;gap:14px}
    .panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .panel-title h2{margin:0;font-size:1.15rem}
    .score{font-weight:800;color:#0c6f76;background:#e8faf8;border-radius:999px;padding:7px 12px}
    .stats{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .stat{
      background:linear-gradient(180deg,#f8fefe,#eefbfa);border:1px solid #d7ece9;border-radius:18px;padding:18px;
    }
    .stat b{display:block;font-size:1.5rem;margin-bottom:4px;color:#0f4950}
    .stat small{color:var(--muted)}
    .mini-list{display:grid;gap:10px;margin-top:2px}
    .mini-list div{display:flex;justify-content:space-between;gap:10px;border-bottom:1px dashed #e0eeec;padding-bottom:8px;color:#355157}
    .section{padding:24px 0}
    .section-header{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;margin-bottom:16px}
    .section-header h2{margin:0;font-size:1.7rem}
    .section-header p{margin:0;color:var(--muted);max-width:64ch}
    .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}
    .section-card{padding:22px}
    .card-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#e4faf6,#dcebf9);color:#0b6f74;font-weight:800;margin-bottom:14px}
    .section-card h3,.case-card h3,.review-card h3,.article-card h3,.price-card h3{margin:0 0 10px;font-size:1.08rem}
    .section-card p,.case-card p,.review-card p,.article-card p,.price-card p{margin:0;color:var(--muted)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid #dcebea;color:#315157;font-size:.92rem}
    .workflow{counter-reset:step}
    .step{position:relative;padding:22px;background:linear-gradient(180deg,#fff,#f8fdfd);border:1px solid #dcebea;border-radius:20px}
    .step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:16px;right:16px;font-weight:800;color:#0c8a8c;background:#e9fbf9;padding:6px 10px;border-radius:999px;font-size:.86rem}
    .step h3{margin-top:0}
    .table-wrap{overflow-x:auto;border-radius:20px;border:1px solid #dcebea;background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:760px}
    th,td{padding:16px 14px;border-bottom:1px solid #edf2f1;text-align:left;vertical-align:top}
    th{background:#f3fbfa;color:#204046;font-size:.95rem}
    td{color:#355157}
    .highlight{color:#0b7e79;font-weight:700}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
      padding:18px 20px;background:#fff;border:0;color:var(--text);font-size:1rem;font-weight:700;cursor:pointer;text-align:left
    }
    .faq-q span:last-child{color:#0c8a8c;font-size:1.2rem}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease,padding .32s ease;border-top:1px solid transparent}
    .faq-a p{margin:0;padding:0 20px 18px;color:var(--muted)}
    .faq-item.open .faq-a{max-height:220px;border-top-color:#edf2f1}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}
    .stars{color:#f5a524;font-size:1rem;letter-spacing:1px}
    .case-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:16px}
    .case-card{padding:22px}
    .bullet-list{display:grid;gap:10px;padding:0;margin:14px 0 0;list-style:none}
    .bullet-list li{display:flex;gap:10px;color:#355157}
    .bullet-list li::before{content:"•";color:var(--brand);font-weight:900}
    .article-list{display:grid;gap:12px}
    .article-card{padding:18px;display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
    .article-card small{display:block;color:var(--muted);margin-top:6px}
    .form-card{padding:24px}
    form{display:grid;gap:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    label{display:grid;gap:8px;font-weight:600;color:#24464b;font-size:.95rem}
    input,select,textarea{
      width:100%;border:1px solid #d8e8e6;background:#fff;border-radius:14px;padding:13px 14px;
      font:inherit;color:var(--text);outline:none;transition:.2s
    }
    input:focus,select:focus,textarea:focus{border-color:#84cbc8;box-shadow:0 0 0 4px rgba(25,184,170,.10)}
    textarea{min-height:128px;resize:vertical}
    .submit-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
    .note{color:var(--muted);font-size:.92rem}
    .footer{
      margin-top:24px;padding:24px 0 30px;background:#f3fbfa;border-top:1px solid #dcebea;color:#28474c
    }
    .footer a{color:#0b6f74}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:20px;align-items:start}
    .footer small{color:#5a7478}
    .home-link{display:inline-flex;margin-top:10px}
    .floating{
      position:fixed;right:18px;bottom:18px;z-index:60;display:grid;gap:10px
    }
    .float-btn{
      width:48px;height:48px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;
      box-shadow:0 14px 30px rgba(12,138,140,.28);border:0;cursor:pointer
    }
    .service-float{
      position:fixed;left:18px;bottom:18px;z-index:60;background:#fff;border:1px solid var(--line);
      border-radius:18px;box-shadow:var(--shadow);overflow:hidden;max-width:320px
    }
    .service-float .head{padding:12px 14px;background:linear-gradient(135deg,#e8fbf9,#eef5ff);font-weight:800;color:#214247}
    .service-float .body{padding:14px;display:grid;gap:10px}
    .service-float img{width:118px;height:118px;object-fit:cover;border-radius:14px;border:1px solid #e2eceb}
    .service-float .mini{font-size:.92rem;color:var(--muted)}
    .timeline{display:grid;gap:14px}
    .timeline-item{display:grid;grid-template-columns:120px 1fr;gap:14px;align-items:start;padding:18px;background:#fff;border:1px solid #dcebea;border-radius:18px}
    .timeline-item strong{color:#0a7074}
    .network-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .network-card{padding:18px}
    .pill{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:#eef9f8;color:#0a7074;font-weight:700;font-size:.88rem}
    .mobile-nav{display:none;padding:0 0 14px}
    .mobile-nav.open{display:block}
    .mobile-nav a{display:block;padding:10px 0;color:#254247;border-bottom:1px solid #edf2f1}
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:.55s ease}
    .scroll-reveal.in-view{opacity:1;transform:none}
    @media (max-width: 1024px){
      .hero-grid,.case-grid,.footer-grid,.grid-4,.grid-3,.network-grid{grid-template-columns:1fr 1fr}
      .grid-2{grid-template-columns:1fr}
    }
    @media (max-width: 760px){
      .navlinks,.nav-cta{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-nav{display:none}
      .hero{padding-top:28px}
      .hero-grid,.grid-4,.grid-3,.grid-2,.case-grid,.footer-grid,.network-grid,.form-grid,.timeline-item{grid-template-columns:1fr}
      .hero-copy,.hero-panel,.section-card,.price-card,.faq-q,.review-card,.case-card,.article-card,.form-card{padding:18px}
      .hero-points{grid-template-columns:1fr}
      .stats{grid-template-columns:1fr 1fr}
      .section-header{align-items:flex-start;flex-direction:column}
      .service-float{max-width:240px}
      .service-float img{width:100%;height:auto;aspect-ratio:1/1}
    }