:root{
      --bg:#f7f4ee;
      --card:#ffffff;
      --card2:#fbfaf7;
      --text:#1f2937;
      --muted:#5b6472;
      --line:#e7dfd3;
      --brand:#e85d75;
      --brand2:#ff9a62;
      --brand3:#6c7cff;
      --shadow:0 14px 40px rgba(42,52,78,.10);
      --shadow2:0 10px 24px rgba(42,52,78,.08);
      --radius:22px;
      --radius2:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at top left, rgba(255,154,98,.18), transparent 28%),
      radial-gradient(circle at top right, rgba(108,124,255,.16), transparent 24%),
      linear-gradient(180deg,#fffdf9 0%, #f7f4ee 40%, #f6f1ea 100%);
      color:var(--text);line-height:1.6}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(100% - 32px, var(--container));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,252,247,.86);backdrop-filter:blur(14px);border-bottom:1px solid rgba(231,223,211,.8)}
    .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}
    .brand img{width:42px;height:42px;object-fit:contain;background:#fff;border-radius:12px;padding:4px;box-shadow:var(--shadow2)}
    .brand strong{display:block;font-size:1rem;line-height:1.2}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:flex-end}
    .nav-links a{font-size:.95rem;color:#314155;padding:8px 10px;border-radius:10px;transition:.2s ease}
    .nav-links a:hover,.nav-links a:focus{background:#fff;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:999px;padding:12px 18px;font-weight:700;cursor:pointer;transition:.22s ease;white-space:nowrap}
    .btn:hover{transform:translateY(-2px);box-shadow:var(--shadow2)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff}
    .btn-ghost{background:#fff;border-color:var(--line);color:var(--text)}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);width:44px;height:44px;border-radius:14px}
    .hero{padding:34px 0 22px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy{background:
      linear-gradient(135deg, rgba(255,255,255,.92), rgba(255,248,243,.88)),
      radial-gradient(circle at 85% 15%, rgba(108,124,255,.14), transparent 18%),
      radial-gradient(circle at 10% 20%, rgba(232,93,117,.14), transparent 18%);
      border:1px solid rgba(231,223,211,.92);border-radius:28px;padding:34px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .hero-copy::after{content:"";position:absolute;inset:auto -60px -70px auto;width:180px;height:180px;background:conic-gradient(from 180deg, rgba(232,93,117,.18), rgba(255,154,98,.14), rgba(108,124,255,.12), rgba(232,93,117,.18));border-radius:50%;filter:blur(8px)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 12px;font-size:.92rem;color:#2c3a4a;box-shadow:0 10px 20px rgba(0,0,0,.04)}
    h1{font-size:clamp(2rem,4vw,3.7rem);line-height:1.08;margin:16px 0 14px;color:#16202f;letter-spacing:-.02em}
    .lead{font-size:1.05rem;color:var(--muted);max-width:44rem}
    .hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:22px}
    .point{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:18px;padding:14px}
    .point strong{display:block;font-size:1.2rem;margin-bottom:4px}
    .point span{font-size:.9rem;color:var(--muted)}
    .hero-side{display:grid;gap:14px}
    .side-card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:20px;box-shadow:var(--shadow2)}
    .side-card h2{font-size:1.1rem;margin:0 0 12px}
    .logo-row{display:flex;align-items:center;gap:12px;margin-bottom:14px}
    .logo-row .ai-page-logo{width:58px;height:58px;border-radius:16px;border:1px solid var(--line);padding:6px;background:#fff}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff7f1;border:1px solid #f1dac7;color:#8c4a28;font-size:.9rem}
    .section{padding:18px 0}
    .section h2{font-size:clamp(1.5rem,2.8vw,2.25rem);line-height:1.15;margin:0 0 12px;color:#172230}
    .section .sub{margin:0 0 18px;color:var(--muted);max-width:70ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
    .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}
    .card{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:0 10px 24px rgba(35,45,66,.06);transition:.22s ease}
    .card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .metric{font-size:2rem;font-weight:800;color:#182434}
    .muted{color:var(--muted)}
    .service-card h3,.flow-card h3,.case-card h3,.review-card h3,.faq-item summary,.article-card h3{margin:0 0 10px;font-size:1.06rem}
    .service-card ul,.flow-card ol,.case-card ul,.review-card p,.article-card p{margin:0;padding-left:18px;color:#334155}
    .service-card li,.case-card li{margin:8px 0}
    .steps{counter-reset:step}
    .flow-card{position:relative}
    .flow-card .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;font-weight:800;margin-bottom:12px}
    .compare-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow2)}
    table{width:100%;border-collapse:collapse;min-width:860px;background:#fff}
    th,td{padding:15px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}
    th{background:#fbf6ef;color:#1f2a3a}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;background:#eef2ff;color:#3747a5;font-size:.88rem}
    .rating{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:10px}
    .stars{color:#f59e0b;font-size:1.05rem;letter-spacing:2px}
    .accordion{display:grid;gap:12px}
    .faq-item{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:0 8px 18px rgba(0,0,0,.04)}
    .faq-item summary{list-style:none;padding:16px 18px;cursor:pointer;font-weight:700}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item .answer{padding:0 18px 16px;color:var(--muted)}
    .review-card{display:flex;flex-direction:column;gap:10px}
    .review-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
    .review-name{font-weight:800}
    .section-alt{background:linear-gradient(180deg, rgba(255,255,255,.4), rgba(255,251,245,.75));border-top:1px solid rgba(231,223,211,.7);border-bottom:1px solid rgba(231,223,211,.7)}
    .article-card a{display:inline-flex;margin-top:10px;color:#c2410c;font-weight:700}
    .form-card form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    label{font-weight:700;font-size:.95rem}
    input,select,textarea{width:100%;border:1px solid #d8cfc2;border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text);outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:#f08d68;box-shadow:0 0 0 4px rgba(240,141,104,.14)}
    textarea{min-height:120px;resize:vertical}
    .footer{margin-top:8px;padding:26px 0 34px;background:#f4efe7;border-top:1px solid #e2d8ca;color:#293345}
    .footer a{color:#213a67}
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr .9fr;gap:18px}
    .footer small,.footer p{color:#526072}
    .float-tools{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .float-tools a,.float-tools button{width:52px;height:52px;border-radius:18px;border:1px solid rgba(255,255,255,.6);background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;display:inline-flex;align-items:center;justify-content:center;box-shadow:var(--shadow);cursor:pointer}
    .backtop{display:none}
    .reveal{opacity:0;transform:translateY(18px);transition:.55s ease}
    .reveal.show{opacity:1;transform:none}
    .mini-image-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
    .mini-image-grid img{border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow2)}
    .hero-links{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .anchor-list{display:flex;flex-wrap:wrap;gap:10px}
    .anchor-list a{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:.92rem}
    .service-network{display:flex;flex-wrap:wrap;gap:10px}
    .service-network span{padding:8px 12px;border-radius:12px;background:#fff;border:1px dashed #dfcfbc;color:#5a4561}
    .mobile-nav{display:none}
    @media (max-width: 980px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .form-card form{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
      .mobile-nav{display:none;padding:0 0 14px}
      .mobile-nav.open{display:block}
      .mobile-nav .nav-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;display:grid}
      .mobile-nav a{background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px}
      .hero-copy{padding:26px}
    }
    @media (max-width: 560px){
      .container{width:min(100% - 22px, var(--container))}
      .hero-copy{padding:22px;border-radius:22px}
      .card{padding:16px}
      .float-tools{right:12px;bottom:12px}
      .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px}
    }