:root{--ink:#25233a;--muted:#68677a;--orange:#ff7048;--yellow:#ffc857;--pink:#ff8ca8;--blue:#4f8cff;--mint:#55c8aa;--cream:#fffaf2;--line:#eee5dc;--white:#fff;--shadow:0 16px 42px rgba(75,49,31,.1);--radius:20px}
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:Inter,"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(1180px,calc(100% - 40px));margin:0 auto}
    .topbar{background:#27243e;color:#fff;font-size:13px}
    .topbar .container{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:16px}
    .topbar a{color:#ffd36c}
    header{position:sticky;top:0;z-index:20;background:rgba(255,250,242,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(238,229,220,.8)}
    .nav{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
    .ai-page-logo{width:42px;max-height:42px;object-fit:contain}
    .brand-name{font-weight:800;font-size:19px;letter-spacing:0}
    .nav-links{display:flex;align-items:center;gap:0;justify-content:flex-end;flex-wrap:wrap}
    .nav-links a{padding:9px 10px;font-size:13px;color:#4c4a5d;transition:.25s}
    .nav-links a:hover{color:var(--orange)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;border:0;cursor:pointer;border-radius:999px;padding:12px 20px;font-weight:700;transition:transform .25s,box-shadow .25s,background .25s}
    .nav-cta,.button.primary{background:var(--orange);color:#fff;box-shadow:0 8px 18px rgba(255,112,72,.22)}
    .button.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(255,112,72,.25)}
    .menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:92px 0 80px;background:linear-gradient(135deg,#fff7d8 0%,#fffaf2 46%,#eaf7ff 100%)}
    .hero:before,.hero:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero:before{width:280px;height:280px;background:#ffd36c;right:-90px;top:-100px;opacity:.35}
    .hero:after{width:180px;height:180px;background:#ff9bb5;left:-90px;bottom:-80px;opacity:.3}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:60px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#e45732;font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:28px;height:4px;border-radius:4px;background:var(--yellow)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:0;margin:18px 0 22px;max-width:690px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:620px}
    .actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0}
    .hero-note{font-size:13px;color:#777487}
    .signal-board{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;transform:rotate(2deg)}
    .signal{padding:25px 22px;background:#fff;border:1px solid rgba(255,255,255,.7);border-radius:24px;box-shadow:var(--shadow);min-height:145px}
    .signal:nth-child(2){background:#fff0a9;transform:translateY(24px)}
    .signal:nth-child(3){background:#d9f7ee}
    .signal:nth-child(4){background:#ffe0e7;transform:translateY(24px)}
    .signal strong{display:block;font-size:34px;line-height:1.1;margin:10px 0 4px}
    .signal span{font-size:13px;color:#6f6870}
    section{padding:88px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:34px}
    h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:12px 0 0}
    .section-intro{max-width:550px;color:var(--muted);margin:0}
    .about{background:#fff}
    .about-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:start}
    .about-lead{font-size:22px;font-weight:700;line-height:1.5}
    .about-text{color:var(--muted)}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .feature{padding:20px;border-left:4px solid var(--yellow);background:#fffaf2}
    .feature h3{font-size:18px;margin-bottom:6px}
    .feature p{font-size:14px;color:var(--muted);margin:0}
    .service-section{background:#f4f8ff}
    .service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .service{background:#fff;padding:23px;border-radius:16px;border:1px solid #e8edf7;transition:.25s}
    .service:hover,.review:hover,.case:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-icon{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-size:21px;margin-bottom:16px;background:#ffe1a6}
    .service:nth-child(2n) .service-icon{background:#d9f7ee}
    .service:nth-child(3n) .service-icon{background:#ffdce5}
    .service h3{font-size:17px;margin-bottom:8px}
    .service p{font-size:14px;color:var(--muted);margin:0}
    .band{background:#29263f;color:#fff}
    .band .section-intro,.band .muted{color:#c9c7d3}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid rgba(255,255,255,.2)}
    .step{padding:27px 20px 8px;border-right:1px solid rgba(255,255,255,.15)}
    .step:last-child{border:0}
    .step-num{color:#ffd36c;font-size:14px;font-weight:800}
    .step h3{font-size:18px;margin:12px 0 8px}
    .step p{font-size:14px;color:#c9c7d3;margin:0}
    .solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .solution{background:#fff;border-radius:18px;padding:25px;border:1px solid var(--line)}
    .solution h3{margin-bottom:8px}
    .solution p{color:var(--muted);font-size:14px;margin-bottom:0}
    .network{background:#fff3f5}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
    .tag{padding:8px 14px;border-radius:999px;background:#fff;border:1px solid #f3d1d9;color:#5e5260;font-size:14px}
    .tag:nth-child(3n){background:#fff0b8;border-color:#fff0b8}
    .tag:nth-child(4n){background:#dff7ee;border-color:#dff7ee}
    .metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
    .metric{padding:22px;background:#fff;border-radius:16px;border-bottom:4px solid var(--pink)}
    .metric strong{font-size:28px;display:block}
    .metric span{font-size:13px;color:var(--muted)}
    .media-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
    .media-main,.media-side{display:grid;gap:20px}
    .media-card{position:relative;overflow:hidden;border-radius:18px;background:#fff;min-height:220px}
    .media-card img{width:100%;height:100%;object-fit:cover}
    .media-card figcaption{position:absolute;left:0;right:0;bottom:0;padding:20px;color:#fff;background:linear-gradient(transparent,rgba(25,20,30,.75));font-weight:700}
    .media-main .media-card{min-height:460px}
    .compare-wrap{display:grid;grid-template-columns:.75fr 1.25fr;gap:28px;align-items:start}
    .score{background:#29263f;color:#fff;padding:30px;border-radius:22px}
    .score strong{font-size:64px;line-height:1;color:#ffd36c;display:block}
    .stars{color:#ffd36c;font-size:22px;letter-spacing:3px}
    .score p{color:#d2cfda}
    .table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--line);border-radius:16px}
    table{width:100%;border-collapse:collapse;min-width:650px}
    th,td{text-align:left;padding:16px;border-bottom:1px solid var(--line);font-size:14px}
    th{background:#fff5d8}
    td:first-child{font-weight:700}
    .good{color:#df5b39;font-weight:800}
    .reviews{background:#fff}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .review{padding:24px;background:#fffaf2;border:1px solid var(--line);border-radius:16px;transition:.25s}
    .review p{color:#4e4b5c;font-size:15px}
    .review footer{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}
    .avatar{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:#ffd36c;color:#4b3a2b;font-weight:800}
    .cases{background:#f4f8ff}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case{background:#fff;border-radius:16px;overflow:hidden;transition:.25s}
    .case-image{aspect-ratio:1.7;overflow:hidden}
    .case-image img{width:100%;height:100%;object-fit:cover}
    .case-body{padding:20px}
    .case-body h3{margin-bottom:7px}
    .case-body p{color:var(--muted);font-size:14px;margin:0}
    .articles{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
    .article{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:18px 20px;background:#fff;border:1px solid var(--line);border-radius:12px}
    .article span{color:var(--muted);font-size:13px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 20px}
    details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:17px 20px}
    summary{cursor:pointer;font-weight:700;padding-right:20px}
    details p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .contact{background:#fff3d6}
    .contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:start}
    .contact-list{display:grid;gap:15px;margin-top:24px}
    .contact-item{display:flex;gap:13px;align-items:flex-start}
    .contact-item b{display:block}
    .contact-item span{font-size:14px;color:var(--muted)}
    form{background:#fff;padding:28px;border-radius:20px;box-shadow:var(--shadow);display:grid;grid-template-columns:1fr 1fr;gap:16px}
    label{font-size:13px;font-weight:700}
    label.full{grid-column:1/-1}
    input,select,textarea{width:100%;margin-top:6px;border:1px solid #e6ddd2;border-radius:10px;padding:13px 14px;background:#fffdf9;font:inherit;color:var(--ink);outline:0}
    input:focus,select:focus,textarea:focus{border-color:var(--orange);box-shadow:0 0 0 3px rgba(255,112,72,.12)}
    textarea{min-height:120px;resize:vertical}
    form .button{grid-column:1/-1}
    .qr{width:110px;margin-top:10px;border-radius:8px}
    .join{background:#e8f8f2}
    .join-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
    .join-box p{color:var(--muted);max-width:650px;margin:12px 0 0}
    footer{background:#29263f;color:#eee;padding:42px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:35px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.15)}
    footer h3{color:#fff;font-size:17px}
    footer p,footer a{color:#c8c5d0;font-size:14px}
    .footer-links{display:flex;flex-wrap:wrap;gap:9px 18px}
    .copyright{padding-top:18px;color:#aaa7b4;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    .float-help{position:fixed;right:20px;bottom:22px;z-index:30;background:var(--orange);color:#fff;padding:12px 16px;border-radius:999px;box-shadow:0 10px 25px rgba(255,112,72,.3);font-weight:700}
    .reveal{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease}
    .reveal.visible{opacity:1;transform:none}
    @media(max-width:1000px){.nav-links a{padding:8px 6px;font-size:12px}.hero-grid,.about-grid,.contact-grid,.compare-wrap{grid-template-columns:1fr}.hero{padding-top:70px}.signal-board{max-width:580px}.service-grid{grid-template-columns:repeat(2,1fr)}.workflow{grid-template-columns:repeat(2,1fr)}.step:nth-child(2n){border-right:0}.step{border-bottom:1px solid rgba(255,255,255,.15)}}
    @media(max-width:720px){.container{width:min(100% - 28px,1180px)}.topbar .container{font-size:11px;min-height:30px}.topbar .container span{display:none}.nav{min-height:66px}.menu-toggle{display:block}.nav-links{display:none;position:absolute;top:66px;left:14px;right:14px;background:#fffaf2;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);align-items:stretch;flex-direction:column}.nav-links.open{display:flex}.nav-links a{padding:11px 14px}.nav-cta{padding:10px 14px;font-size:13px}.hero{padding:62px 0 58px}.hero-copy{font-size:16px}.signal-board{transform:none;gap:10px}.signal{min-height:125px;padding:18px}.signal strong{font-size:27px}section{padding:62px 0}.section-head{display:block;margin-bottom:26px}.section-intro{margin-top:15px}.feature-list,.service-grid,.solution-grid,.metric-row,.review-grid,.case-grid,.faq-grid,.articles{grid-template-columns:1fr}.workflow{grid-template-columns:1fr}.step{border-right:0;padding:22px 0}.media-grid{grid-template-columns:1fr}.media-main .media-card{min-height:280px}.media-side{grid-template-columns:1fr 1fr}.compare-wrap{gap:18px}.score strong{font-size:52px}form{grid-template-columns:1fr;padding:20px}label.full,form .button{grid-column:auto}.join-box{display:block}.footer-grid{grid-template-columns:1fr;gap:22px}.copyright{display:block}.copyright span{display:block;margin-top:8px}.float-help{right:12px;bottom:14px}.ai-page-logo{width:38px}}