:root{
      --ink:#182338;
      --muted:#617088;
      --paper:#fffdf8;
      --white:#ffffff;
      --pink:#ff6f91;
      --coral:#ff896f;
      --yellow:#ffd95c;
      --mint:#72d8c0;
      --blue:#78a9ff;
      --violet:#a58cff;
      --line:#e8e3da;
      --shadow:0 16px 38px rgba(38,47,75,.10);
      --container:min(1180px,calc(100% - 36px));
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"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:var(--container);margin:0 auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(255,253,248,.94);border-bottom:1px solid rgba(232,227,218,.9);backdrop-filter:blur(14px)}
    .nav-bar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:flex;align-items:center;gap:10px;flex:none}
    .ai-page-logo{width:126px}
    .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{padding:8px 10px;color:#43516a;font-size:13px;transition:.2s}
    .nav-links a:hover{color:var(--pink)}
    .nav-cta,.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;border-radius:8px;padding:12px 18px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
    .nav-cta{background:var(--ink);color:#fff;margin-left:10px;font-size:13px}
    .button:hover,.nav-cta:hover{transform:translateY(-2px);box-shadow:0 10px 18px rgba(24,35,56,.16)}
    .button-primary{background:var(--pink);color:#fff}
    .button-dark{background:var(--ink);color:#fff}
    .button-light{background:#fff;color:var(--ink);border:1px solid var(--line)}
    .menu-toggle{display:none;background:none;border:0;font-size:24px;color:var(--ink)}
    .hero{position:relative;overflow:hidden;padding:78px 0 56px;background:#fff5d9;border-bottom:1px solid #f3e6b9}
    .hero:before,.hero:after{content:"";position:absolute;z-index:0;border:2px solid rgba(255,111,145,.25);transform:rotate(16deg)}
    .hero:before{width:180px;height:180px;right:7%;top:28px;border-radius:36px}
    .hero:after{width:80px;height:80px;left:8%;bottom:30px;border-radius:20px;border-color:rgba(120,169,255,.35)}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:50px;align-items:center}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:#d15b70;font-size:13px;font-weight:800;letter-spacing:1px}
    .eyebrow:before{content:"";width:24px;height:4px;border-radius:4px;background:var(--pink)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,6vw,68px);line-height:1.1;letter-spacing:0;margin:16px 0 22px;max-width:680px}
    h2{font-size:clamp(27px,4vw,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:#526079;max-width:650px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}
    .hero-note{font-size:13px;color:#6c7485}
    .signal-board{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .signal{padding:20px;background:#fff;border:1px solid #f0e5c8;border-radius:14px;box-shadow:var(--shadow);animation:floatIn .7s both}
    .signal:nth-child(2){margin-top:22px;background:#e9fbf5}
    .signal:nth-child(3){margin-top:-10px;background:#fff0f4}
    .signal:nth-child(4){margin-top:12px;background:#eef3ff}
    .signal strong{display:block;font-size:28px;line-height:1.1;margin-bottom:5px}
    .signal span{font-size:13px;color:var(--muted)}
    .section{padding:82px 0}
    .section-tint{background:#f7f8ff}
    .section-warm{background:#fff4ed}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head p{max-width:560px;color:var(--muted);margin-bottom:0}
    .kicker{color:#e26c81;font-weight:800;font-size:13px;margin-bottom:8px}
    .intro-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:26px;align-items:stretch}
    .intro-copy{padding:28px 0}
    .intro-copy p{color:var(--muted);font-size:16px}
    .quote-panel{background:var(--ink);color:#fff;border-radius:18px;padding:32px;position:relative;overflow:hidden}
    .quote-panel:after{content:"";position:absolute;width:150px;height:150px;border:22px solid rgba(255,217,92,.75);border-radius:50%;right:-55px;bottom:-50px}
    .quote-panel p{font-size:24px;line-height:1.4;position:relative;z-index:1}
    .quote-panel span{color:#b7c3dc;font-size:13px}
    .stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:28px}
    .stat-item{padding:18px;border-top:3px solid var(--yellow);background:#fff;border-radius:10px}
    .stat-item strong{font-size:27px;display:block}
    .stat-item span{font-size:13px;color:var(--muted)}
    .service-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .service-card{padding:24px;background:#fff;border:1px solid var(--line);border-radius:12px;transition:.25s;position:relative}
    .service-card:hover,.review:hover,.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
    .service-card:nth-child(3n+1){border-top:4px solid var(--pink)}
    .service-card:nth-child(3n+2){border-top:4px solid var(--mint)}
    .service-card:nth-child(3n){border-top:4px solid var(--blue)}
    .service-icon{font-size:28px;margin-bottom:12px}
    .service-card p,.case-card p,.review p{color:var(--muted);font-size:14px;margin-bottom:0}
    .tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
    .tag{font-size:12px;padding:4px 9px;border-radius:5px;background:#f2f4f9;color:#526079}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
    .workflow:before{content:"";position:absolute;top:28px;left:9%;right:9%;border-top:2px dashed #f1b3bd}
    .step{position:relative;text-align:center;padding:0 10px}
    .step-number{width:58px;height:58px;margin:0 auto 16px;border-radius:50%;display:grid;place-items:center;background:var(--pink);color:#fff;font-weight:800;border:7px solid #fff0f3;position:relative;z-index:1}
    .step:nth-child(2) .step-number{background:var(--coral)}
    .step:nth-child(3) .step-number{background:#dfb725}
    .step:nth-child(4) .step-number{background:#4fbda4}
    .step:nth-child(5) .step-number{background:#6d91e7}
    .step p{font-size:13px;color:var(--muted)}
    .industry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .industry{padding:18px;background:#fff;border-radius:10px;border:1px solid var(--line)}
    .industry strong{display:block;margin-bottom:5px}
    .industry span{font-size:13px;color:var(--muted)}
    .network{display:flex;flex-wrap:wrap;gap:10px;padding:24px;background:#fff;border:1px solid var(--line);border-radius:14px}
    .network span{padding:9px 14px;background:#f2f5ff;border-radius:6px;color:#425276;font-size:13px}
    .network span:nth-child(3n){background:#fff0f4}
    .network span:nth-child(3n+1){background:#eafaf4}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .timeline-item{padding:22px;border-left:4px solid var(--violet);background:#fff;border-radius:0 12px 12px 0}
    .timeline-item b{color:#806ad2;font-size:13px}
    .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .case-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:12px;transition:.25s}
    .case-card .media{aspect-ratio:16/8;background:#f3f5fb;overflow:hidden}
    .case-card .media img{width:100%;height:100%;object-fit:cover}
    .case-content{padding:20px}
    .case-content p{margin-bottom:10px}
    .case-content a{font-size:13px;color:#d45d73;font-weight:700}
    .comparison-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:26px;align-items:start}
    .rating{background:var(--ink);color:#fff;border-radius:16px;padding:28px}
    .rating .stars{color:var(--yellow);font-size:28px;letter-spacing:3px}
    .rating strong{display:block;font-size:54px;line-height:1.1;margin:12px 0}
    .rating p{color:#c6d0e4;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:640px}
    th,td{text-align:left;padding:15px;border-bottom:1px solid #eee;color:#506078;font-size:14px}
    th{background:#f7f8fc;color:var(--ink);font-weight:800}
    td:first-child{color:var(--ink);font-weight:700}
    .highlight{color:#d25970;font-weight:800}
    .price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .price-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:12px}
    .price-card.featured{border:2px solid var(--pink);position:relative}
    .price-card.featured:before{content:"推荐关注";position:absolute;right:16px;top:16px;background:var(--pink);color:#fff;padding:4px 8px;border-radius:4px;font-size:11px}
    .price-card strong{font-size:28px;display:block;margin:8px 0}
    .price-card p{font-size:13px;color:var(--muted)}
    .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .review{padding:22px;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-head strong{font-size:15px}
    .review-head span{font-size:12px;color:#d79522}
    .faq-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    details{background:#fff;border:1px solid var(--line);border-radius:9px;padding:16px 18px}
    summary{cursor:pointer;font-weight:700;padding-right:15px}
    details p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .article-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .article{padding:17px;background:#fff;border:1px solid var(--line);border-radius:9px}
    .article small{color:#d15b70}
    .article h3{font-size:15px;margin:9px 0}
    .article p{font-size:13px;color:var(--muted);margin:0}
    .match-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:start}
    .match-copy p{color:var(--muted)}
    .match-points{display:grid;gap:10px;margin-top:22px}
    .match-point{padding:12px 15px;background:#fff;border-left:3px solid var(--mint);border-radius:5px;font-size:14px}
    form{background:#fff;padding:25px;border-radius:14px;border:1px solid var(--line);display:grid;grid-template-columns:1fr 1fr;gap:15px}
    label{font-size:13px;font-weight:700}
    input,select,textarea{width:100%;margin-top:6px;padding:12px;border:1px solid #dfe3eb;border-radius:6px;background:#fff;color:var(--ink);font:inherit;outline:none}
    input:focus,select:focus,textarea:focus{border-color:var(--pink);box-shadow:0 0 0 3px rgba(255,111,145,.12)}
    textarea{min-height:120px;resize:vertical}
    .field-wide{grid-column:1/-1}
    .form-submit{grid-column:1/-1;justify-content:center}
    .contact-strip{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:center}
    .contact-card{padding:26px;background:#e9fbf5;border-radius:14px}
    .contact-card p{color:#4e6b67;margin-bottom:8px}
    .contact-links{display:flex;flex-wrap:wrap;gap:10px}
    .contact-links a{padding:8px 12px;background:#fff;border-radius:6px;font-size:13px}
    .qr-box{display:flex;align-items:center;gap:18px;padding:20px;background:#fff;border-radius:12px;border:1px solid var(--line)}
    .qr-box img{width:108px}
    .join-banner{display:flex;justify-content:space-between;gap:25px;align-items:center;padding:30px;background:#ffe4eb;border-radius:16px}
    .join-banner p{color:#76505d;margin:0}
    .site-footer{background:var(--ink);color:#fff;padding:48px 0 25px}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:35px}
    .footer-brand p,.site-footer small{color:#b7c3dc;font-size:13px}
    .footer-title{font-weight:800;margin-bottom:12px}
    .footer-links{display:flex;flex-wrap:wrap;gap:8px 16px}
    .footer-links a{color:#dbe2f1;font-size:13px}
    .footer-bottom{border-top:1px solid #34425c;margin-top:32px;padding-top:18px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap}
    .float-support{position:fixed;right:18px;bottom:20px;z-index:15;background:var(--pink);color:#fff;padding:12px 15px;border-radius:8px;box-shadow:0 10px 24px rgba(255,111,145,.3);font-size:13px;font-weight:700}
    .reveal{opacity:0;transform:translateY(18px);transition:opacity .65s ease,transform .65s ease}
    .reveal.visible{opacity:1;transform:none}
    @keyframes floatIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
    @media(max-width:980px){
      .nav-links{display:none;position:absolute;left:18px;right:18px;top:70px;padding:12px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:10px;flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:10px 12px}
      .nav-cta{display:none}
      .menu-toggle{display:block}
      .hero-grid,.intro-grid,.comparison-wrap,.match-grid,.contact-strip{grid-template-columns:1fr}
      .service-grid{grid-template-columns:repeat(2,1fr)}
      .industry-grid{grid-template-columns:repeat(2,1fr)}
      .article-grid{grid-template-columns:repeat(3,1fr)}
      .workflow{grid-template-columns:repeat(5,1fr)}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media(max-width:640px){
      :root{--container:calc(100% - 28px)}
      .nav-bar{min-height:66px}
      .hero{padding:52px 0 42px}
      h1{font-size:39px}
      .hero-copy{font-size:16px}
      .section{padding:58px 0}
      .section-head{display:block}
      .section-head p{margin-top:12px}
      .signal-board,.service-grid,.stat-row,.timeline,.case-grid,.price-grid,.review-grid,.faq-list,.industry-grid,.footer-grid{grid-template-columns:1fr}
      .signal:nth-child(n){margin-top:0}
      .workflow{display:block}
      .workflow:before{top:0;bottom:0;left:29px;right:auto;border-top:0;border-left:2px dashed #f1b3bd}
      .step{display:grid;grid-template-columns:58px 1fr;text-align:left;gap:15px;margin-bottom:20px;align-items:center}
      .step-number{margin:0}
      .step h3,.step p{grid-column:2}
      .step h3{margin:-58px 0 35px}
      .step p{margin:0}
      .article-grid{grid-template-columns:1fr 1fr}
      form{grid-template-columns:1fr}
      .field-wide,.form-submit{grid-column:auto}
      .join-banner{display:block}
      .join-banner .button{margin-top:18px}
      .qr-box{align-items:flex-start}
      .qr-box img{width:90px}
    }