:root{
      --bg:#fff9df;
      --bg2:#fffef8;
      --card:#ffffff;
      --card2:#fff7c7;
      --text:#1f2a37;
      --muted:#5b6472;
      --line:#eadf9e;
      --brand:#f4c300;
      --brand2:#ffdf57;
      --accent:#0f766e;
      --shadow:0 18px 40px rgba(105, 84, 0, .12);
      --shadow2:0 10px 26px rgba(105, 84, 0, .08);
      --radius:20px;
      --radius2:28px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,var(--bg) 0%,#fffdf3 22%,#fff 62%,#fff8d9 100%);color:var(--text)}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:60;background:rgba(255,252,236,.88);backdrop-filter:blur(12px);border-bottom:1px solid rgba(234,223,158,.75)}
    .nav{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .ai-page-logo{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;padding:6px;border:1px solid var(--line);box-shadow:var(--shadow2)}
    .brand strong{display:block;font-size:18px;letter-spacing:.5px}
    .brand span{display:block;font-size:12px;color:var(--muted)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .menu-btn{display:none;border:1px solid var(--line);background:#fff;padding:10px 12px;border-radius:12px;color:var(--text)}
    .nav-links{display:flex;align-items:center;gap:16px;flex-wrap:wrap}
    .nav-links a{font-size:14px;color:#344054;padding:8px 10px;border-radius:999px}
    .nav-links a:hover,.nav-links a:focus{background:#fff4bb;color:#0f172a}
    .home-btn,.primary-btn,.ghost-btn,.submit-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;border:1px solid transparent;padding:13px 18px;font-weight:700;transition:.25s ease;cursor:pointer}
    .home-btn,.primary-btn,.submit-btn{background:linear-gradient(135deg,var(--brand) 0%,var(--brand2) 100%);color:#1f2937;box-shadow:0 10px 24px rgba(244,195,0,.25)}
    .ghost-btn{background:#fff;border-color:var(--line);color:#334155}
    .home-btn:hover,.primary-btn:hover,.submit-btn:hover,.ghost-btn:hover{transform:translateY(-2px);box-shadow:var(--shadow2)}
    .hero{position:relative;overflow:hidden;padding:34px 0 18px}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero::before{width:320px;height:320px;background:radial-gradient(circle,rgba(244,195,0,.22),rgba(244,195,0,0) 65%);right:-80px;top:-40px}
    .hero::after{width:220px;height:220px;background:radial-gradient(circle,rgba(15,118,110,.14),rgba(15,118,110,0) 65%);left:-90px;bottom:-30px}
    .hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.faq-item,.review-card,.service-card,.case-card,.info-card,.form-card,.price-card,.timeline-card,.about-card{background:rgba(255,255,255,.92);border:1px solid rgba(234,223,158,.9);box-shadow:var(--shadow);border-radius:var(--radius2)}
    .hero-copy{padding:34px}
    .kicker{display:inline-flex;align-items:center;gap:8px;background:#fff4b7;color:#7a5b00;border:1px solid #f0dd7a;padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
    h1{margin:16px 0 14px;font-size:clamp(34px,5vw,58px);line-height:1.06;letter-spacing:-.04em}
    .lead{font-size:16px;line-height:1.8;color:var(--muted);max-width:62ch;margin:0 0 18px}
    .hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:20px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
    .mini-stat{padding:14px;border-radius:18px;background:linear-gradient(180deg,#fff 0%,#fffaf0 100%);border:1px solid #f0e2aa}
    .mini-stat b{display:block;font-size:20px;color:#1d4ed8}
    .mini-stat span{display:block;margin-top:6px;color:var(--muted);font-size:13px;line-height:1.5}
    .hero-panel{padding:24px;display:flex;flex-direction:column;gap:14px}
    .panel-block{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fffdf3 0%,#fff 100%);border:1px solid #f2e7b5}
    .panel-title{margin:0 0 8px;font-size:16px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
    .tag{padding:8px 11px;border-radius:999px;background:#fff7c7;border:1px solid #f0df91;color:#6b5d1b;font-size:13px}
    section{padding:20px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:14px}
    .section-head h2{margin:0;font-size:clamp(24px,3vw,34px)}
    .section-head p{margin:0;color:var(--muted);line-height:1.7;max-width:62ch}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .service-card,.case-card,.review-card,.info-card,.price-card,.timeline-card,.about-card,.form-card{padding:22px}
    .service-card h3,.case-card h3,.review-card h3,.info-card h3,.price-card h3,.about-card h3{margin:0 0 10px;font-size:18px}
    .service-card p,.case-card p,.review-card p,.info-card p,.price-card p,.about-card p{margin:0;color:var(--muted);line-height:1.75}
    .pill-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .pill-list span{font-size:12px;padding:7px 10px;border-radius:999px;background:#f9f2c8;color:#655314;border:1px solid #eddc88}
    .section-card{padding:24px}
    .flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .step{padding:18px;border-radius:18px;background:linear-gradient(180deg,#fff 0%,#fff8da 100%);border:1px solid #efdf9d;position:relative;overflow:hidden}
    .step b{display:inline-flex;width:34px;height:34px;align-items:center;justify-content:center;border-radius:999px;background:#111827;color:#fff;margin-bottom:12px}
    .step h3{margin:0 0 8px}
    .step p{margin:0;color:var(--muted);line-height:1.7;font-size:14px}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid #eadf9e;background:#fff}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:14px 16px;border-bottom:1px solid #f0e3b5;text-align:left;vertical-align:top}
    th{background:#fff7ce;color:#1f2937;font-size:14px}
    td{color:#334155;font-size:14px;line-height:1.65}
    .compare-spot{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .score-card{padding:24px;border-radius:24px;background:linear-gradient(135deg,#fff8c8 0%,#fff 58%,#ffe66b 100%);border:1px solid #eadf9e}
    .score{font-size:52px;font-weight:900;line-height:1;color:#b45309}
    .stars{color:#ef9f00;font-size:20px;letter-spacing:2px}
    .faq{display:grid;gap:12px}
    .faq-item button{width:100%;text-align:left;background:transparent;border:0;color:var(--text);font:inherit;padding:0;display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer}
    .faq-item h3{margin:0;font-size:17px}
    .faq-item .answer{max-height:0;overflow:hidden;transition:max-height .28s ease;padding-right:10px}
    .faq-item .answer p{margin:12px 0 0;color:var(--muted);line-height:1.75}
    .faq-item.open .answer{max-height:220px}
    .faq-item.open .chev{transform:rotate(180deg)}
    .chev{transition:transform .25s ease}
    .reviews,.cases,.articles,.links-grid,.contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
    .review-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:12px}
    .review-meta strong{font-size:15px}
    .stars-sm{color:#ef9f00}
    .article-list{display:grid;gap:12px}
    .article-list a{padding:14px 16px;border-radius:16px;background:#fff;border:1px solid #f0e3b5;display:flex;justify-content:space-between;gap:16px;align-items:center}
    .article-list a:hover{background:#fff8dd}
    .article-list span{color:var(--muted);font-size:14px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    label{display:block;font-size:14px;font-weight:700;margin-bottom:8px}
    input,select,textarea{width:100%;border:1px solid #e5d89c;background:#fff;border-radius:14px;padding:13px 14px;color:var(--text);font:inherit;outline:none}
    textarea{min-height:120px;resize:vertical}
    input:focus,select:focus,textarea:focus{border-color:#d8b61b;box-shadow:0 0 0 4px rgba(244,195,0,.14)}
    .footer{margin-top:10px;padding:24px 0 30px;background:#0f172a;color:#e5e7eb}
    .footer a{color:#fff2b8}
    .footer .container{width:min(var(--max),calc(100% - 32px))}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;align-items:start}
    .footer small,.footer p{color:#cbd5e1;line-height:1.7}
    .footer-links{display:flex;flex-wrap:wrap;gap:10px}
    .footer-links a{padding:8px 10px;background:rgba(255,255,255,.06);border-radius:999px}
    .float-box{position:fixed;right:16px;bottom:16px;z-index:70;display:flex;flex-direction:column;gap:10px}
    .float-box a,.to-top{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow2);color:#1f2937}
    .float-contact{position:fixed;left:16px;bottom:16px;z-index:70;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow2);border-radius:18px;padding:14px 14px 12px;max-width:240px}
    .float-contact strong{display:block;margin-bottom:8px}
    .float-contact img{width:100%;border-radius:14px;border:1px solid #f0e3b5}
    .reveal{opacity:0;transform:translateY(16px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    @media (max-width: 980px){
      .hero-grid,.grid-3,.grid-2,.flow,.reviews,.cases,.articles,.links-grid,.contact-grid,.compare-spot,.footer-grid{grid-template-columns:1fr}
      .hero-points,.form-grid{grid-template-columns:1fr 1fr}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:72px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow);flex-direction:column;align-items:flex-start}
      .nav-links.open{display:flex}
      .menu-btn{display:inline-flex}
    }
    @media (max-width: 640px){
      .hero-copy,.hero-panel,.section-card,.service-card,.case-card,.review-card,.info-card,.price-card,.timeline-card,.about-card,.form-card,.score-card{padding:18px}
      .hero-points,.form-grid{grid-template-columns:1fr}
      .hero-cta{flex-direction:column}
      .home-btn,.primary-btn,.ghost-btn,.submit-btn{width:100%}
      .float-contact{max-width:190px}
    }