:root{
      --bg:#f7f5ef;
      --bg2:#fffaf4;
      --card:#ffffff;
      --text:#1f2a37;
      --muted:#5f6b7a;
      --line:#e7dfd1;
      --brand:#ff4d6d;
      --brand2:#6c63ff;
      --brand3:#ffb703;
      --shadow:0 18px 40px rgba(31,42,55,.08);
      --shadow2:0 12px 24px rgba(255,77,109,.14);
      --radius:20px;
      --radius2:28px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
      color:var(--text);
      background:
        radial-gradient(circle at top left, rgba(255,77,109,.12), transparent 26%),
        radial-gradient(circle at 85% 10%, rgba(108,99,255,.10), transparent 28%),
        linear-gradient(180deg,var(--bg),var(--bg2));
      line-height:1.7;
    }
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    .container{width:min(var(--container),calc(100% - 32px));margin:0 auto}
    .site-header{
      position:sticky;top:0;z-index:60;
      backdrop-filter:saturate(160%) blur(14px);
      background:rgba(247,245,239,.82);
      border-bottom:1px solid rgba(231,223,209,.85);
    }
    .nav{
      display:flex;align-items:center;justify-content:space-between;gap:16px;
      min-height:76px;
    }
    .brand{display:flex;align-items:center;gap:12px;min-width:0}
    .brand .ai-page-logo{width:42px;height:42px;border-radius:12px;object-fit:cover;box-shadow:0 8px 20px rgba(108,99,255,.14)}
    .brand-text{display:flex;flex-direction:column;line-height:1.2}
    .brand-text strong{font-size:1.05rem;letter-spacing:.4px}
    .brand-text span{font-size:.82rem;color:var(--muted)}
    .nav-toggle{
      display:none;border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px 12px;color:var(--text)
    }
    .nav-menu{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}
    .nav-menu a{font-size:.95rem;color:var(--text);padding:8px 10px;border-radius:999px;transition:.25s ease}
    .nav-menu a:hover,.nav-menu a:focus-visible{background:#fff;color:var(--brand)}
    .hero{
      position:relative;overflow:hidden;padding:58px 0 34px;
    }
    .hero::before,.hero::after{
      content:"";position:absolute;border-radius:50%;pointer-events:none;filter:blur(4px)
    }
    .hero::before{width:280px;height:280px;background:rgba(255,77,109,.16);top:-120px;right:-80px}
    .hero::after{width:220px;height:220px;background:rgba(255,183,3,.14);left:-100px;bottom:-70px}
    .hero-grid{
      display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch;
    }
    .hero-copy,.hero-panel,.section-card,.info-card,.service-card,.case-card,.review-card,.article-card,.faq-item,.compare-box,.form-card{
      background:rgba(255,255,255,.8);border:1px solid rgba(231,223,209,.9);
      border-radius:var(--radius2);box-shadow:var(--shadow)
    }
    .hero-copy{padding:34px}
    .eyebrow{
      display:inline-flex;align-items:center;gap:8px;
      font-size:.86rem;font-weight:700;color:#8f2140;
      background:rgba(255,77,109,.12);padding:8px 12px;border-radius:999px
    }
    h1{margin:.9rem 0 .8rem;font-size:clamp(2rem,4vw,3.6rem);line-height:1.08;letter-spacing:-.03em}
    .hero-copy p{margin:0;color:var(--muted);font-size:1.02rem;max-width:58ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      border:none;border-radius:14px;padding:13px 18px;font-weight:700;cursor:pointer;
      transition:.25s ease;box-shadow:none
    }
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:var(--shadow2)}
    .btn-secondary{background:#fff;color:var(--text);border:1px solid var(--line)}
    .btn:hover{transform:translateY(-2px)}
    .hero-note{
      display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px
    }
    .mini-stat{
      background:linear-gradient(180deg,#fff, #fffaf6);border:1px solid var(--line);
      border-radius:18px;padding:14px
    }
    .mini-stat strong{display:block;font-size:1.2rem}
    .mini-stat span{font-size:.88rem;color:var(--muted)}
    .hero-panel{padding:24px;display:grid;gap:16px}
    .panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .badge{font-size:.82rem;font-weight:700;color:#21406d;background:rgba(108,99,255,.12);padding:6px 10px;border-radius:999px}
    .meter{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .meter div{padding:16px;border-radius:18px;background:linear-gradient(135deg,rgba(255,77,109,.08),rgba(108,99,255,.08));border:1px solid rgba(255,255,255,.7)}
    .meter strong{display:block;font-size:1.35rem}
    .meter span{font-size:.86rem;color:var(--muted)}
    .hero-list{display:grid;gap:10px}
    .hero-list div{display:flex;align-items:flex-start;gap:10px;color:var(--text)}
    .hero-list i{flex:0 0 22px;height:22px;border-radius:50%;background:linear-gradient(135deg,var(--brand),var(--brand3));margin-top:3px}
    .section{padding:18px 0 8px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.45rem,2.6vw,2.2rem);line-height:1.15}
    .section-head p{margin:0;color:var(--muted);max-width:70ch}
    .section-grid{display:grid;gap:16px}
    .cards-4{grid-template-columns:repeat(4,1fr)}
    .cards-3{grid-template-columns:repeat(3,1fr)}
    .cards-2{grid-template-columns:repeat(2,1fr)}
    .info-card,.service-card,.case-card,.review-card,.article-card,.compare-box,.form-card,.faq-item,.section-card{padding:22px}
    .info-card h3,.service-card h3,.case-card h3,.review-card h3,.article-card h3,.section-card h3,.compare-box h3{margin:0 0 10px;font-size:1.08rem}
    .info-card p,.service-card p,.case-card p,.review-card p,.article-card p,.section-card p,.compare-box p{margin:0;color:var(--muted)}
    .pill-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .pill{padding:7px 10px;border-radius:999px;background:#f4f7ff;border:1px solid #dfe7ff;font-size:.84rem;color:#31427a}
    .service-card{display:grid;gap:12px;min-height:100%}
    .service-card .topline{display:flex;align-items:center;justify-content:space-between;gap:12px}
    .icon{
      width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
      background:linear-gradient(135deg,rgba(255,77,109,.16),rgba(108,99,255,.16));font-size:1.2rem
    }
    .service-card ul,.faq-item ul{margin:0;padding-left:18px;color:var(--muted)}
    .workflow{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{
      position:relative;padding:20px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow)
    }
    .step strong{display:inline-flex;width:32px;height:32px;border-radius:10px;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;margin-bottom:12px}
    .step h3{margin:0 0 8px;font-size:1.04rem}
    .step p{margin:0;color:var(--muted)}
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:860px}
    th,td{padding:16px 14px;border-bottom:1px solid #efe9dd;text-align:left;vertical-align:top}
    th{background:#fff6f1;font-size:.95rem}
    tr:last-child td{border-bottom:none}
    .score{
      display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;
      background:rgba(255,183,3,.14);color:#8a5a00;font-weight:700
    }
    .split{
      display:grid;grid-template-columns:1fr 1fr;gap:16px;align-items:start
    }
    .form-grid{
      display:grid;grid-template-columns:repeat(2,1fr);gap:14px
    }
    .field{display:grid;gap:8px}
    label{font-weight:700;font-size:.92rem}
    input,select,textarea{
      width:100%;border:1px solid var(--line);border-radius:14px;padding:13px 14px;font:inherit;background:#fff;color:var(--text)
    }
    textarea{min-height:128px;resize:vertical;grid-column:1/-1}
    .form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:8px}
    .contact-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:14px}
    .contact-badges .pill{background:#fff0f3;border-color:#ffd4df;color:#8b2141}
    .faq-list{display:grid;gap:12px}
    .faq-item{padding:0;overflow:hidden}
    .faq-q{
      width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;
      background:none;border:none;padding:20px;cursor:pointer;font:inherit;color:var(--text);text-align:left
    }
    .faq-a{padding:0 20px 20px;color:var(--muted);display:none}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q .chev{transform:rotate(180deg)}
    .faq-q .chev{transition:.25s ease;color:var(--brand)}
    .review-grid,.article-grid,.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .avatar{
      width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
      background:linear-gradient(135deg,var(--brand2),var(--brand));color:#fff;font-weight:800
    }
    .review-top{display:flex;align-items:center;gap:12px;margin-bottom:12px}
    .stars{color:#f59e0b;letter-spacing:1px}
    .article-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:.86rem;margin-top:12px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud a{padding:9px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--text)}
    .footer{
      padding:18px 0 26px;border-top:1px solid rgba(231,223,209,.9);margin-top:14px;background:rgba(255,250,244,.8)
    }
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr 1fr;gap:16px}
    .footer a{color:var(--text)}
    .footer small,.footer p{color:var(--muted)}
    .floating{
      position:fixed;right:16px;bottom:16px;z-index:70;display:grid;gap:10px
    }
    .float-btn{
      display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:16px;
      background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:var(--shadow2);border:none;cursor:pointer
    }
    .kefu-box{
      display:none;position:fixed;right:16px;bottom:80px;z-index:70;width:min(280px,calc(100vw - 32px));
      background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:16px
    }
    .kefu-box.open{display:block}
    .kefu-box h3{margin:0 0 10px}
    .kefu-box p{margin:0 0 10px;color:var(--muted)}
    .kefu-box .qr{border-radius:16px;overflow:hidden;border:1px solid var(--line)}
    .fade-up{opacity:0;transform:translateY(16px);transition:all .6s ease}
    .fade-up.in{opacity:1;transform:none}
    .link-btn{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:700}
    .article-list{display:grid;gap:12px}
    .article-row{
      display:flex;justify-content:space-between;gap:12px;align-items:start;padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)
    }
    .article-row span{color:var(--muted);font-size:.88rem}
    .service-net{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .net-card{padding:16px;border-radius:18px;background:#fff;border:1px solid var(--line)}
    .net-card strong{display:block;margin-bottom:6px}
    .home-link{
      display:inline-flex;align-items:center;justify-content:center;padding:10px 14px;border-radius:999px;
      background:rgba(255,77,109,.12);color:#8f2140;font-weight:700;border:1px solid rgba(255,77,109,.16)
    }
    @media (max-width: 1080px){
      .cards-4,.review-grid,.article-grid,.case-grid,.service-net{grid-template-columns:repeat(2,1fr)}
      .workflow,.hero-grid,.split,.footer-grid{grid-template-columns:1fr}
      .hero-panel{order:-1}
    }
    @media (max-width: 780px){
      .nav-toggle{display:inline-flex}
      .nav-menu{
        display:none;position:absolute;top:76px;left:0;right:0;background:rgba(247,245,239,.98);
        padding:14px 16px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow)
      }
      .nav-menu.open{display:flex;flex-direction:column;align-items:flex-start}
      .cards-3,.cards-2,.cards-4,.review-grid,.article-grid,.case-grid,.service-net,.form-grid,.meter,.hero-note{grid-template-columns:1fr}
      .hero{padding-top:26px}
      .hero-copy{padding:24px}
      .section-head{flex-direction:column;align-items:start}
      .nav{position:relative}
      textarea{grid-column:auto}
    }