:root{
      --bg:#f7f4ee;
      --bg2:#eef4ff;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5b6472;
      --line:#e5e7eb;
      --brand:#2457ff;
      --brand2:#12b3a8;
      --accent:#ff8a3d;
      --shadow:0 16px 40px rgba(31,41,55,.08);
      --radius:22px;
      --max:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:linear-gradient(180deg,var(--bg) 0%,#fff 42%,#fbfbfd 100%);color:var(--text)}
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--max),calc(100% - 32px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(247,244,238,.82);backdrop-filter:blur(14px);border-bottom:1px solid rgba(229,231,235,.7)}
    .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;border-radius:12px;background:#fff;padding:4px;box-shadow:0 8px 20px rgba(0,0,0,.06)}
    .brand strong{display:block;font-size:1rem;line-height:1.1}
    .brand span{display:block;font-size:.82rem;color:var(--muted)}
    .nav-links{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:flex-end}
    .nav-links a{color:var(--text);font-size:.95rem;padding:8px 10px;border-radius:999px}
    .nav-links a:hover{background:#eef3ff;color:var(--brand)}
    .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;transition:.25s ease;cursor:pointer;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--brand),#5f8cff);color:#fff;box-shadow:0 12px 26px rgba(36,87,255,.22)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(36,87,255,.28)}
    .btn-secondary{background:#fff;border-color:var(--line);color:var(--text)}
    .btn-secondary:hover{transform:translateY(-2px);border-color:#cfd7ea}
    .menu-toggle{display:none;background:#fff;border:1px solid var(--line);border-radius:12px;padding:10px 12px;cursor:pointer}
    .hero{padding:36px 0 18px;position:relative;overflow:hidden}
    .hero::before,.hero::after{content:"";position:absolute;border-radius:50%;filter:blur(4px);pointer-events:none}
    .hero::before{width:260px;height:260px;background:radial-gradient(circle,rgba(36,87,255,.14),rgba(36,87,255,0) 72%);top:-80px;right:-30px}
    .hero::after{width:220px;height:220px;background:radial-gradient(circle,rgba(18,179,168,.12),rgba(18,179,168,0) 68%);bottom:20px;left:-60px}
    .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .hero-copy,.hero-panel,.section-card,.info-card,.comment-card,.faq-item,.article-card,.price-card,.timeline-item,.step-card,.feature-card,.case-card,.contact-card{background:var(--card);border:1px solid rgba(229,231,235,.9);border-radius:var(--radius);box-shadow:var(--shadow)}
    .hero-copy{padding:34px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:#eef4ff;color:var(--brand);font-weight:700;font-size:.88rem}
    h1{font-size:clamp(2rem,5vw,3.55rem);line-height:1.08;margin:16px 0 14px;letter-spacing:-.02em}
    .lead{font-size:1.05rem;line-height:1.8;color:var(--muted);margin:0 0 22px;max-width:62ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:20px}
    .hero-badges{display:flex;flex-wrap:wrap;gap:10px}
    .chip{padding:9px 12px;border-radius:999px;background:#f4f7ff;color:#344054;border:1px solid #e5ecff;font-size:.92rem}
    .hero-panel{padding:22px;display:grid;gap:14px}
    .metric-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .metric{padding:16px;border-radius:18px;background:linear-gradient(180deg,#fff,#f9fbff);border:1px solid #eef1f7}
    .metric strong{display:block;font-size:1.4rem;color:#17306f}
    .metric span{display:block;color:var(--muted);font-size:.9rem;margin-top:4px}
    .hero-panel .mini{padding:16px;border-radius:18px;background:linear-gradient(135deg,#eef7ff,#f4fff9);border:1px solid #e3eefb}
    .mini h3,.section-title h2{margin:0 0 10px}
    .mini p,.section-desc,.text-muted{margin:0;color:var(--muted);line-height:1.75}
    .section{padding:18px 0 6px}
    .section-title{display:flex;align-items:end;justify-content:space-between;gap:18px;margin-bottom:16px}
    .section-title h2{font-size:clamp(1.45rem,2.7vw,2.2rem)}
    .section-title p{margin:0;color:var(--muted);max-width:62ch;line-height:1.7}
    .grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .feature-card,.case-card,.article-card,.comment-card,.price-card,.timeline-item,.contact-card,.section-card{padding:20px}
    .feature-card h3,.case-card h3,.article-card h3,.comment-card h3,.price-card h3,.timeline-item h3{margin:0 0 10px;font-size:1.05rem}
    .icon-dot{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#eef4ff,#fff1e7);color:var(--brand);font-weight:800;margin-bottom:14px}
    .tag-cloud{display:flex;flex-wrap:wrap;gap:10px}
    .tag-cloud span{padding:8px 11px;border-radius:999px;background:#fff7ef;border:1px solid #ffd8be;color:#8a4f1f;font-size:.9rem}
    .list{margin:0;padding-left:18px;color:var(--text);line-height:1.8}
    .list li{margin:6px 0}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .step-card{padding:18px;position:relative}
    .step-card .num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:12px;background:#eef4ff;color:var(--brand);font-weight:800;margin-bottom:12px}
    .compare-wrap{overflow-x:auto;border-radius:var(--radius);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 #edf0f4;text-align:left;vertical-align:top}
    th{background:#f7faff;font-size:.95rem}
    td{color:var(--text);line-height:1.7}
    .score{font-weight:800;color:#113b9d}
    .rating{display:inline-flex;align-items:center;gap:6px;background:#eef7ff;color:#1c4fcc;border-radius:999px;padding:8px 12px;font-weight:700}
    .split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .faq-list{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;background:none;border:0;padding:18px 20px;font-size:1rem;font-weight:700;color:var(--text);display:flex;justify-content:space-between;align-items:center;cursor:pointer;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;padding:0 20px}
    .faq-item.active .faq-a{max-height:220px;padding-bottom:18px}
    .faq-item.active .faq-q .arr{transform:rotate(180deg)}
    .faq-q .arr{transition:transform .25s ease}
    .reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .avatar{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:linear-gradient(135deg,#dff2ff,#ffe9db);color:#224;border:1px solid #edf1f6;font-weight:800;margin-bottom:14px}
    .quote{color:var(--muted);line-height:1.8;margin:0}
    .articles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .article-card .meta{color:var(--muted);font-size:.9rem;margin-bottom:8px}
    .contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:16px}
    form{display:grid;gap:12px}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid #dfe5ef;background:#fff;color:var(--text);font:inherit}
    textarea{min-height:126px;resize:vertical}
    label{font-size:.94rem;font-weight:700;color:#334155}
    .form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
    .footer{margin-top:18px;padding:22px 0 26px;border-top:1px solid #e8ebf1;background:#f8fafc;color:#1f2937}
    .footer a{color:#2049c7}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}
    .footer small,.footer p{color:#4b5563;line-height:1.8}
    .float-tools{position:fixed;right:18px;bottom:18px;display:grid;gap:10px;z-index:60}
    .float-tools a,.float-tools button{width:48px;height:48px;border-radius:16px;border:0;display:grid;place-items:center;box-shadow:0 14px 32px rgba(31,41,55,.18);cursor:pointer}
    .float-tools a{background:linear-gradient(135deg,var(--brand2),#29d1c7);color:#fff}
    .float-tools button{background:#fff;color:var(--brand)}
    .scroll-reveal{opacity:0;transform:translateY(14px);transition:.6s ease}
    .scroll-reveal.visible{opacity:1;transform:none}
    .gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .gallery img{border-radius:18px;box-shadow:var(--shadow);aspect-ratio:16/10;object-fit:cover;background:#fff}
    .logo-line{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
    .price-note{display:grid;gap:10px}
    .timeline{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .site-top-links{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
    .site-top-links a{color:#0f3ea8}
    .service-badges{display:flex;flex-wrap:wrap;gap:10px}
    .service-badges span{background:#f0fbf9;border:1px solid #d8f3ee;color:#106a61;padding:8px 12px;border-radius:999px}
    .mobile-panel{display:none}
    @media (max-width: 1080px){
      .hero-grid,.contact-grid,.split,.footer-grid{grid-template-columns:1fr}
      .grid-4,.steps,.timeline,.reviews,.articles,.gallery,.grid-3{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 760px){
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .mobile-panel{display:none;padding:0 0 14px}
      .mobile-panel.open{display:block}
      .mobile-panel .nav-links{display:grid;grid-template-columns:1fr;gap:6px;padding:8px 0 0}
      .mobile-panel .nav-links a{background:#fff;border:1px solid var(--line)}
      .hero-copy,.hero-panel,.feature-card,.case-card,.article-card,.comment-card,.price-card,.timeline-item,.contact-card,.section-card{padding:18px}
      .form-row,.grid-4,.steps,.timeline,.reviews,.articles,.gallery,.grid-3{grid-template-columns:1fr}
      .section-title{flex-direction:column;align-items:flex-start}
      .hero{padding-top:24px}
      .hero-actions,.nav-actions{width:100%}
      .hero-actions .btn,.nav-actions .btn{flex:1}
      .brand strong{font-size:.98rem}
    }