:root{
      --ink:#202638;
      --muted:#667085;
      --paper:#fffaf4;
      --white:#ffffff;
      --line:#eadfd5;
      --coral:#ff6b5e;
      --orange:#ffad4a;
      --yellow:#ffe27a;
      --mint:#bcebd9;
      --teal:#35b9ab;
      --blue:#7bc9ef;
      --violet:#a895ee;
      --pink:#f5b6cb;
      --shadow:0 18px 45px rgba(48,44,62,.10);
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--ink);
      background:
        linear-gradient(180deg,#fffaf4 0%,#fffdf9 40%,#f7fbf8 100%);
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;height:auto;display:block}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .topbar{
      background:#202638;color:#fff;padding:8px 0;font-size:13px;
    }
    .topbar-inner{display:flex;justify-content:space-between;gap:20px;align-items:center}
    .topbar a{text-decoration:underline;text-underline-offset:3px}
    header{
      position:sticky;top:0;z-index:20;
      background:rgba(255,250,244,.94);
      border-bottom:1px solid rgba(234,223,213,.9);
      backdrop-filter:blur(14px);
    }
    .nav-wrap{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:12px;min-width:170px}
    .ai-page-logo{width:42px;height:42px;object-fit:contain}
    .brand strong{font-size:19px;letter-spacing:0}
    .brand small{display:block;color:var(--muted);font-size:11px;line-height:1.2}
    .nav-links{display:flex;align-items:center;justify-content:flex-end;gap:0;flex-wrap:wrap}
    .nav-links a{
      font-size:13px;font-weight:600;padding:10px 11px;color:#41495b;
      border-radius:8px;transition:.2s ease;
    }
    .nav-links a:hover{background:#ffe8d6;color:#d55343}
    .nav-cta,.button{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:0;border-radius:9px;padding:12px 18px;font-weight:700;cursor:pointer;
      transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
    }
    .nav-cta{background:var(--coral);color:#fff;white-space:nowrap}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);box-shadow:0 9px 18px rgba(255,107,94,.25)}
    .button-primary{background:var(--coral);color:#fff}
    .button-secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}
    .menu-toggle{display:none;background:none;border:0;font-size:25px;color:var(--ink);cursor:pointer}
    .hero{
      position:relative;overflow:hidden;padding:92px 0 78px;
      background:
        linear-gradient(135deg,#fff2de 0%,#fffaf4 48%,#eaf9f3 100%);
    }
    .hero:before,.hero:after{
      content:"";position:absolute;border-radius:50%;pointer-events:none;opacity:.72;
    }
    .hero:before{width:270px;height:270px;background:var(--yellow);right:-80px;top:55px}
    .hero:after{width:180px;height:180px;background:var(--pink);left:-70px;bottom:-75px}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#d65745;font-weight:800;font-size:13px;letter-spacing:.08em;margin-bottom:18px}
    .eyebrow:before{content:"";width:28px;height:4px;border-radius:3px;background:var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,66px);line-height:1.12;letter-spacing:0;margin-bottom:22px;max-width:720px}
    h2{font-size:clamp(27px,3vw,42px);line-height:1.2;margin-bottom:14px}
    h3{font-size:19px;line-height:1.35;margin-bottom:9px}
    .hero-copy{font-size:18px;color:#535c6d;max-width:650px;margin-bottom:28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:30px}
    .hero-note{font-size:13px;color:var(--muted)}
    .hero-panel{background:#fff;border:1px solid rgba(234,223,213,.9);box-shadow:var(--shadow);padding:24px;border-radius:18px;transform:rotate(1.2deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}
    .panel-title{font-weight:800;font-size:17px}
    .status{font-size:12px;background:#e7f8ef;color:#238368;border-radius:20px;padding:5px 10px}
    .mini-chart{display:flex;align-items:flex-end;gap:10px;height:150px;padding:20px 8px 0;border-bottom:1px solid var(--line)}
    .bar{flex:1;border-radius:7px 7px 0 0;background:var(--blue);animation:rise .9s both}
    .bar:nth-child(2){height:70%;background:var(--coral);animation-delay:.08s}
    .bar:nth-child(1){height:42%}.bar:nth-child(3){height:82%;background:var(--orange);animation-delay:.16s}
    .bar:nth-child(4){height:61%;background:var(--teal);animation-delay:.24s}.bar:nth-child(5){height:93%;background:var(--violet);animation-delay:.32s}
    .chart-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;padding-top:8px}
    .panel-footer{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
    .panel-stat{background:#fff8ef;padding:11px;border-radius:10px}
    .panel-stat b{display:block;font-size:20px}.panel-stat span{font-size:11px;color:var(--muted)}
    @keyframes rise{from{transform:scaleY(0);transform-origin:bottom}to{transform:scaleY(1)}}
    section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
    .section-head p{max-width:560px;color:var(--muted);margin-bottom:4px}
    .kicker{color:#d65745;font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;margin-bottom:9px}
    .intro-band{background:#202638;color:#fff}
    .intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:start}
    .intro-band h2{color:#fff}
    .intro-band p{color:#d9deea}
    .feature-list{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .feature-list div{padding:16px 17px;border:1px solid rgba(255,255,255,.16);border-radius:10px;background:rgba(255,255,255,.07)}
    .feature-list b{display:block;color:var(--yellow);margin-bottom:4px}
    .feature-list span{font-size:14px;color:#e6eaf0}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
    .metric{background:#fff;border:1px solid var(--line);padding:22px;border-radius:12px}
    .metric strong{font-size:32px;line-height:1;color:var(--coral);display:block;margin-bottom:5px}
    .metric span{font-size:13px;color:var(--muted)}
    .service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .service-card{background:#fff;border:1px solid var(--line);padding:22px;border-radius:12px;transition:.22s ease}
    .service-card:hover,.review:hover,.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-card:nth-child(4n+1){border-top:4px solid var(--coral)}
    .service-card:nth-child(4n+2){border-top:4px solid var(--orange)}
    .service-card:nth-child(4n+3){border-top:4px solid var(--teal)}
    .service-card:nth-child(4n){border-top:4px solid var(--violet)}
    .service-icon{font-size:28px;margin-bottom:10px}
    .service-card p,.case-card p,.review p{font-size:14px;color:var(--muted);margin-bottom:0}
    .workflow{background:#fff0e7}
    .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:0;counter-reset:step}
    .step{position:relative;padding:8px 18px 12px 0}
    .step:before{counter-increment:step;content:"0" counter(step);display:flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:50%;background:var(--coral);color:#fff;font-weight:800;margin-bottom:18px}
    .step:not(:last-child):after{content:"";position:absolute;top:29px;left:51px;width:calc(100% - 55px);border-top:2px dashed #e6a795}
    .step h3,.step p{position:relative;z-index:1}
    .step p{font-size:14px;color:var(--muted);padding-right:18px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
    .tag{padding:8px 13px;border-radius:8px;background:#fff;border:1px solid var(--line);font-size:13px}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .solution{padding:24px;background:#fff;border-left:5px solid var(--blue);border-radius:10px;box-shadow:0 8px 25px rgba(48,44,62,.06)}
    .solution:nth-child(2){border-color:var(--orange)}.solution:nth-child(3){border-color:var(--pink)}
    .solution p{font-size:14px;color:var(--muted);margin:0}
    .media-strip{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;margin-top:30px}
    .media-box{overflow:hidden;border-radius:14px;background:#fff;border:1px solid var(--line)}
    .media-box img{width:100%;aspect-ratio:16/7;object-fit:cover}
    .media-box.square img{aspect-ratio:1/1}
    .media-box figcaption{padding:14px 17px;font-weight:700}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case-card{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.22s ease}
    .case-card img{width:100%;aspect-ratio:16/8;object-fit:cover}
    .case-content{padding:19px}
    .case-label{font-size:12px;color:#d65745;font-weight:800;margin-bottom:7px}
    .compare-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:start}
    .score-box{background:#202638;color:#fff;padding:30px;border-radius:14px}
    .stars{color:var(--yellow);font-size:25px;letter-spacing:4px}
    .score{font-size:58px;font-weight:800;line-height:1.1;margin:12px 0 4px}
    .score-box p{color:#d9deea;font-size:14px}
    .table-scroll{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:12px}
    table{width:100%;border-collapse:collapse;min-width:620px}
    th,td{text-align:left;padding:15px 17px;border-bottom:1px solid var(--line);font-size:14px}
    th{background:#fff4e8;color:#41495b}
    tr:last-child td{border-bottom:0}
    td:last-child{color:#15836d;font-weight:700}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .review{background:#fff;border:1px solid var(--line);padding:22px;border-radius:12px;transition:.22s ease}
    .review-head{display:flex;justify-content:space-between;gap:10px;align-items:start;margin-bottom:12px}
    .review-head strong{font-size:15px}.review-head span{font-size:12px;color:#d65745}
    .review-mark{color:var(--orange);letter-spacing:2px}
    .pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card{background:#fff;padding:25px;border:1px solid var(--line);border-radius:12px}
    .price-card.highlight{background:#fff0e7;border-color:#ffc5a5}
    .price-card b{font-size:27px;display:block;margin:9px 0;color:var(--coral)}
    .price-card p{font-size:14px;color:var(--muted)}
    .price-card ul{padding-left:19px;color:#4d5668;font-size:14px}
    .article-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:13px}
    .article{background:#fff;border:1px solid var(--line);padding:17px;border-radius:10px}
    .article span{font-size:11px;color:#d65745}.article h3{font-size:15px;margin:8px 0}
    .article p{font-size:13px;color:var(--muted);margin:0}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
    details{background:#fff;border:1px solid var(--line);border-radius:10px;padding:17px 19px}
    summary{cursor:pointer;font-weight:700;padding-right:20px;position:relative}
    summary::marker{color:var(--coral)}
    details p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .contact-section{background:#eaf8f2}
    .contact-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:42px;align-items:start}
    .contact-points{display:grid;gap:12px;margin-top:25px}
    .contact-points div{background:#fff;border:1px solid #d7e9e1;padding:15px 17px;border-radius:10px}
    .contact-points b{display:block;margin-bottom:3px}
    .contact-points span{font-size:14px;color:var(--muted)}
    form{background:#fff;padding:25px;border-radius:14px;border:1px solid #d7e9e1;box-shadow:0 14px 35px rgba(38,80,65,.08)}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    label{font-size:13px;font-weight:700;display:grid;gap:7px}
    input,select,textarea{width:100%;border:1px solid #d9dfe3;border-radius:8px;padding:12px 13px;font:inherit;color:var(--ink);background:#fff}
    textarea{min-height:120px;resize:vertical}.full{grid-column:1/-1}
    .form-actions{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-top:17px}
    .form-actions small{color:var(--muted)}
    .network{display:grid;grid-template-columns:1fr 1fr;gap:30px}
    .network-box{background:#fff;border:1px solid var(--line);padding:25px;border-radius:12px}
    .network-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
    .network-list span{background:#f5f1ff;color:#5d4e9e;padding:8px 11px;border-radius:7px;font-size:13px}
    footer{background:#202638;color:#dbe1eb;padding:48px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.1fr .8fr .8fr 1fr;gap:30px}
    footer h3{color:#fff;font-size:16px}footer p,footer li,footer a{font-size:13px;color:#b8c1d0}
    footer ul{padding:0;margin:0;list-style:none;display:grid;gap:7px}
    footer a:hover{color:var(--yellow)}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:30px;padding-top:17px;font-size:12px;color:#9ca7b8;display:flex;justify-content:space-between;gap:15px}
    .float-contact{position:fixed;right:20px;bottom:22px;z-index:15;background:var(--coral);color:#fff;border-radius:50px;padding:12px 17px;font-size:13px;font-weight:800;box-shadow:0 10px 25px rgba(255,107,94,.3)}
    .to-top{position:fixed;right:20px;bottom:78px;width:40px;height:40px;border:0;border-radius:50%;background:#fff;color:var(--ink);box-shadow:var(--shadow);cursor:pointer;opacity:0;pointer-events:none;transition:.2s}
    .to-top.visible{opacity:1;pointer-events:auto}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
    .reveal.show{opacity:1;transform:none}
    @media(max-width:1050px){
      .nav-links a{padding-left:7px;padding-right:7px;font-size:12px}
      .nav-cta{padding:10px 13px;font-size:12px}
      .service-grid{grid-template-columns:repeat(3,1fr)}
      .article-grid{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:780px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .topbar-inner{font-size:11px}
      .nav-wrap{min-height:65px}.menu-toggle{display:block}
      .nav-links{display:none;position:absolute;top:65px;left:0;right:0;background:#fffaf4;border-bottom:1px solid var(--line);padding:10px 14px;box-shadow:0 12px 24px rgba(48,44,62,.08)}
      .nav-links.open{display:grid;grid-template-columns:repeat(2,1fr)}
      .nav-links a{padding:10px 8px}.nav-cta{display:none}
      .hero{padding:66px 0 55px}.hero-grid,.intro-grid,.compare-wrap,.contact-grid,.network{grid-template-columns:1fr;gap:32px}
      .hero-panel{transform:none}.section-head{display:block}.section-head p{margin-top:10px}
      section{padding:60px 0}.metrics{grid-template-columns:repeat(2,1fr)}
      .service-grid,.solution-grid,.case-grid,.reviews,.pricing{grid-template-columns:repeat(2,1fr)}
      .steps{grid-template-columns:1fr;gap:22px}.step{padding:0 0 0 60px}.step:before{position:absolute;left:0;top:0}.step:not(:last-child):after{left:21px;top:48px;width:2px;height:25px;border-top:0;border-left:2px dashed #e6a795}
      .media-strip{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:5px}
    }
    @media(max-width:480px){
      h1{font-size:37px}.hero-copy{font-size:16px}.feature-list,.metrics,.service-grid,.solution-grid,.case-grid,.reviews,.pricing,.article-grid,.form-grid,.footer-grid{grid-template-columns:1fr}
      .full{grid-column:auto}.form-actions{display:block}.form-actions small{display:block;margin-bottom:12px}
      .float-contact{right:12px;bottom:14px}.to-top{right:12px;bottom:69px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
    }