:root{
      --mint-50:#f2fbf6;
      --mint-100:#e2f6eb;
      --mint-200:#c8edda;
      --mint-400:#63c998;
      --mint-500:#24a86e;
      --mint-700:#11704b;
      --ink:#17352b;
      --muted:#5f766c;
      --line:#d9e9df;
      --cream:#fffdf7;
      --orange:#ef9b58;
      --shadow:0 16px 45px rgba(25,91,63,.10);
      --radius:14px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      background:var(--mint-50);
      color:var(--ink);
      font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    button,input,select,textarea{font:inherit}
    img{max-width:100%;height:auto;display:block}
    .container{width:min(1180px,calc(100% - 36px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:20;
      background:rgba(242,251,246,.94);
      border-bottom:1px solid rgba(217,233,223,.9);
      backdrop-filter:blur(16px);
    }
    .nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;min-width:170px}
    .ai-page-logo{width:132px;max-height:46px;object-fit:contain}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:14px;color:#36574a;padding:8px 10px;border-radius:8px;transition:.2s}
    .nav-links a:hover{color:var(--mint-700);background:var(--mint-100)}
    .nav-action,.primary-btn{
      display:inline-flex;align-items:center;justify-content:center;
      min-height:44px;padding:0 20px;border:0;border-radius:8px;
      background:var(--mint-500);color:#fff;font-weight:700;
      box-shadow:0 8px 18px rgba(36,168,110,.22);
      transition:transform .2s,box-shadow .2s,background .2s;
      cursor:pointer;
    }
    .nav-action:hover,.primary-btn:hover{transform:translateY(-2px);background:var(--mint-700);box-shadow:0 12px 24px rgba(36,168,110,.28)}
    .menu-toggle{display:none;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:8px;padding:8px 12px}
    .hero{
      position:relative;overflow:hidden;padding:88px 0 68px;
      background:
        linear-gradient(135deg,rgba(226,246,235,.95),rgba(255,253,247,.92)),
        repeating-linear-gradient(90deg,transparent 0,transparent 79px,rgba(36,168,110,.055) 80px),
        repeating-linear-gradient(0deg,transparent 0,transparent 79px,rgba(36,168,110,.055) 80px);
    }
    .hero:after{content:"";position:absolute;right:6%;top:54px;width:240px;height:240px;border:1px solid rgba(36,168,110,.18);border-radius:50%;box-shadow:0 0 0 26px rgba(36,168,110,.04),0 0 0 52px rgba(36,168,110,.025);animation:float 7s ease-in-out infinite}
    .hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(330px,.9fr);gap:56px;align-items:center;position:relative;z-index:1}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--mint-700);font-size:14px;font-weight:700;letter-spacing:1px}
    .eyebrow:before{content:"";width:28px;height:3px;background:var(--orange);border-radius:3px}
    h1,h2,h3{line-height:1.25;margin:0 0 18px;letter-spacing:0}
    h1{font-size:clamp(38px,5vw,68px);max-width:720px;color:#123c2b}
    h2{font-size:clamp(28px,3.5vw,42px)}
    h3{font-size:20px}
    .hero-copy{font-size:18px;color:#49685a;max-width:660px;margin:0 0 28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .secondary-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 20px;border:1px solid #9bd8b6;border-radius:8px;color:var(--mint-700);background:#fff;transition:.2s}
    .secondary-btn:hover{background:var(--mint-100);transform:translateY(-2px)}
    .hero-panel{background:rgba(255,255,255,.72);border:1px solid rgba(155,216,182,.7);padding:26px;border-radius:18px;box-shadow:var(--shadow)}
    .hero-panel-title{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:18px}
    .status{font-size:12px;color:var(--mint-700);background:var(--mint-100);padding:4px 9px;border-radius:999px}
    .signal-list{display:grid;gap:13px}
    .signal{display:flex;align-items:center;gap:12px;color:#385c4c}
    .signal i{width:10px;height:10px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(239,155,88,.15)}
    .metrics{padding:0 0 22px;background:var(--mint-50)}
    .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .metric{padding:22px;background:#fff;border:1px solid var(--line);border-top:3px solid var(--mint-400);border-radius:12px}
    .metric strong{display:block;font-size:30px;color:var(--mint-700);line-height:1.1}
    .metric span{color:var(--muted);font-size:14px}
    section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
    .section-head p{max-width:540px;color:var(--muted);margin:0}
    .about{background:var(--cream)}
    .about-grid{display:grid;grid-template-columns:.86fr 1.14fr;gap:60px;align-items:start}
    .about-lead{font-size:21px;color:#315748}
    .check-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:14px}
    .check-list li{display:flex;gap:12px;align-items:flex-start}
    .check-list li:before{content:"✓";display:grid;place-items:center;flex:0 0 24px;height:24px;border-radius:50%;background:var(--mint-100);color:var(--mint-700);font-weight:700}
    .capability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .capability{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:.25s}
    .capability:hover,.review:hover,.case:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:#a5ddbd}
    .capability .icon{width:42px;height:42px;display:grid;place-items:center;background:var(--mint-100);color:var(--mint-700);border-radius:10px;font-weight:800;margin-bottom:18px}
    .capability p,.case p,.review p{font-size:14px;color:var(--muted);margin:0}
    .band{background:#e9f8ef}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid #acdcbc}
    .step{position:relative;padding:28px 18px 0;border-right:1px solid #acdcbc}
    .step:last-child{border-right:0}
    .step-number{font-size:14px;color:var(--mint-700);font-weight:800;margin-bottom:22px}
    .step-number:after{content:"";display:block;width:12px;height:12px;background:var(--orange);border:3px solid #e9f8ef;border-radius:50%;position:absolute;top:-7px;left:18px}
    .step p{font-size:14px;color:var(--muted)}
    .solution-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .solution{padding:22px;background:#fff;border:1px solid var(--line);border-radius:10px}
    .solution h3{font-size:18px}
    .solution p{color:var(--muted);font-size:14px;margin:0}
    .network{background:var(--cream)}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;max-width:900px}
    .tag{border:1px solid #b5e2c7;background:#fff;color:#286248;padding:8px 14px;border-radius:999px;font-size:14px}
    .network-note{margin-top:24px;color:var(--muted);max-width:850px}
    .comparison{background:#e9f8ef}
    .rating-row{display:flex;align-items:center;gap:20px;margin-bottom:25px}
    .rating-score{font-size:48px;font-weight:800;color:var(--mint-700)}
    .stars{color:#e9974d;font-size:24px;letter-spacing:2px}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px}
    table{width:100%;min-width:760px;border-collapse:collapse}
    th,td{text-align:left;padding:16px 18px;border-bottom:1px solid var(--line);font-size:14px}
    th{background:#f4fcf7;color:#285a44}
    td:first-child{font-weight:700;color:#315548}
    tr:last-child td{border-bottom:0}
    .highlight{color:var(--mint-700);font-weight:700}
    .price-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:stretch}
    .price-panel{padding:28px;background:#fff;border:1px solid var(--line);border-radius:14px}
    .price-list{display:grid;gap:13px;margin:22px 0 0}
    .price-line{display:flex;justify-content:space-between;gap:15px;border-bottom:1px dashed var(--line);padding-bottom:11px;color:var(--muted)}
    .price-line strong{color:var(--ink)}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.25s}
    .case-media{aspect-ratio:16/9;background:var(--mint-100);overflow:hidden}
    .case-media img{width:100%;height:100%;object-fit:cover}
    .case-body{padding:20px}
    .case-label{font-size:13px;color:var(--mint-700);font-weight:700}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{padding:24px;background:#fff;border:1px solid var(--line);border-radius:12px;transition:.25s}
    .review-head{display:flex;justify-content:space-between;gap:10px;margin-bottom:12px}
    .review-name{font-weight:700}
    .review-role{font-size:12px;color:var(--mint-700);background:var(--mint-100);padding:3px 8px;border-radius:999px;white-space:nowrap}
    .review-mark{color:var(--orange);font-size:20px}
    .articles{background:var(--cream)}
    .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article{padding:24px;background:#fff;border-left:4px solid var(--mint-400);border-radius:10px;border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
    .article small{color:var(--mint-700)}
    .article h3{font-size:18px;margin-top:10px}
    .article p{font-size:14px;color:var(--muted);margin:0 0 15px}
    .text-link{color:var(--mint-700);font-weight:700;font-size:14px}
    .faq-list{display:grid;gap:10px;max-width:900px}
    details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:0 20px}
    summary{cursor:pointer;list-style:none;padding:18px 30px 18px 0;font-weight:700;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--mint-700);font-size:22px;top:14px}
    details[open] summary:after{content:"−"}
    details p{margin:0 0 18px;color:var(--muted);font-size:14px}
    .contact{background:#dff4e8}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:42px;align-items:start}
    .contact-info{display:grid;gap:14px;margin-top:24px}
    .contact-item{padding:16px 18px;background:rgba(255,255,255,.7);border:1px solid #b9e1c8;border-radius:9px}
    .contact-item strong{display:block;margin-bottom:3px}
    .contact-item span{font-size:14px;color:var(--muted)}
    .form-panel{background:#fff;padding:28px;border-radius:14px;border:1px solid var(--line);box-shadow:var(--shadow)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .field{display:grid;gap:7px}
    .field.full{grid-column:1/-1}
    label{font-size:14px;font-weight:700;color:#315548}
    input,select,textarea{width:100%;border:1px solid #c9dfd2;border-radius:7px;padding:12px 13px;color:var(--ink);background:#fbfefc;outline:0}
    input:focus,select:focus,textarea:focus{border-color:var(--mint-500);box-shadow:0 0 0 3px rgba(36,168,110,.12)}
    textarea{min-height:130px;resize:vertical}
    .form-submit{margin-top:18px}
    .join{background:var(--cream)}
    .join-inner{display:flex;justify-content:space-between;align-items:center;gap:30px;padding:34px 0}
    .join-inner p{color:var(--muted);max-width:650px;margin:0}
    footer{background:#17352b;color:#d9eee1;padding:50px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr 1fr;gap:30px;padding-bottom:34px;border-bottom:1px solid rgba(217,238,225,.2)}
    footer h3{font-size:16px;color:#fff}
    footer p,footer a{font-size:14px;color:#b9d5c4}
    footer a:hover{color:#fff}
    .footer-links{display:grid;gap:8px}
    .qr{width:110px;background:#fff;padding:6px;border-radius:5px}
    .copyright{padding-top:18px;font-size:13px;color:#9fc2ad;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
    .floating{position:fixed;right:20px;bottom:22px;z-index:15;display:grid;gap:9px}
    .float-btn{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;background:var(--mint-500);color:#fff;border:0;box-shadow:0 8px 22px rgba(14,88,54,.25);cursor:pointer;font-size:18px}
    .float-btn:hover{background:var(--mint-700);transform:translateY(-2px)}
    .reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:none}
    @keyframes float{50%{transform:translateY(14px) rotate(8deg)}}
    @media(max-width:1000px){
      .nav-links{display:none;position:absolute;top:76px;left:18px;right:18px;background:#fff;padding:12px;border:1px solid var(--line);border-radius:10px;box-shadow:var(--shadow)}
      .nav-links.open{display:grid;grid-template-columns:repeat(2,1fr)}
      .nav-links a{padding:10px}
      .menu-toggle{display:block}
      .nav-action{display:none}
      .hero-grid,.about-grid,.contact-grid{grid-template-columns:1fr}
      .hero{padding-top:64px}
      .hero:after{right:-90px;top:30px}
      .metric-grid{grid-template-columns:repeat(2,1fr)}
      .solution-grid{grid-template-columns:repeat(2,1fr)}
      .workflow{grid-template-columns:repeat(3,1fr);border-top:0}
      .step{border-top:1px solid #acdcbc;border-right:1px solid #acdcbc;padding-bottom:20px}
      .case-grid,.review-grid,.article-grid{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      section{padding:62px 0}
      .hero{padding:56px 0 48px}
      h1{font-size:39px}
      .hero-copy{font-size:16px}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .metric-grid,.capability-grid,.solution-grid,.case-grid,.review-grid,.article-grid,.price-grid,.footer-grid{grid-template-columns:1fr}
      .workflow{grid-template-columns:1fr 1fr}
      .step:nth-child(2n){border-right:0}
      .form-grid{grid-template-columns:1fr}
      .field.full{grid-column:auto}
      .join-inner{display:block}
      .join-inner .primary-btn{margin-top:20px}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
      .nav-links.open{grid-template-columns:1fr}
      .hero-actions a{width:100%}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}
      .reveal{opacity:1;transform:none}
    }