:root{
      --bg:#f7f8fc;
      --surface:#ffffff;
      --surface-2:#f3f6ff;
      --line:#dbe3f0;
      --text:#172033;
      --muted:#5f6b84;
      --primary:#5b6cff;
      --primary-2:#ff7a59;
      --accent:#18b7a2;
      --shadow:0 18px 50px rgba(23,32,51,.08);
      --radius:22px;
      --radius-sm:16px;
      --container:1180px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;background:
      radial-gradient(circle at top left, rgba(91,108,255,.10), transparent 28%),
      radial-gradient(circle at top right, rgba(255,122,89,.10), transparent 24%),
      linear-gradient(180deg, #fbfcff 0%, #f7f8fc 28%, #f6f8fd 100%);
      color:var(--text);line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(247,248,252,.84);backdrop-filter:blur(14px);border-bottom:1px solid rgba(219,227,240,.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;border:1px solid var(--line);padding:4px}
    .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;flex-wrap:wrap;gap:8px;align-items:center;justify-content:flex-end}
    .nav-links a{font-size:.92rem;color:var(--muted);padding:8px 12px;border-radius:999px;transition:.2s ease}
    .nav-links a:hover,.nav-links a:focus-visible{color:var(--text);background:#fff;box-shadow:0 8px 20px rgba(23,32,51,.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:.25s ease;white-space:nowrap}
    .btn-primary{background:linear-gradient(135deg,var(--primary),#7e8bff);color:#fff;box-shadow:0 14px 28px rgba(91,108,255,.24)}
    .btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 32px rgba(91,108,255,.3)}
    .btn-light{background:#fff;color:var(--text);border-color:var(--line)}
    .btn-light:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(23,32,51,.08)}
    .menu-toggle{display:none}
    .hero{padding:42px 0 24px}
    .hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px;align-items:stretch}
    .hero-main,.hero-side,.card,.panel,.quote,.faq-item,.form-card,.timeline-item,.price-card,.review-card,.case-card,.article-card{background:rgba(255,255,255,.85);border:1px solid rgba(219,227,240,.95);box-shadow:var(--shadow);border-radius:var(--radius)}
    .hero-main{padding:30px;position:relative;overflow:hidden}
    .hero-main:before,.hero-main:after{content:"";position:absolute;border-radius:50%;pointer-events:none}
    .hero-main:before{width:220px;height:220px;right:-80px;top:-70px;background:radial-gradient(circle, rgba(24,183,162,.18), transparent 68%)}
    .hero-main:after{width:180px;height:180px;right:70px;bottom:-70px;background:radial-gradient(circle, rgba(255,122,89,.14), transparent 68%)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:linear-gradient(135deg, rgba(91,108,255,.12), rgba(24,183,162,.10));color:#334060;font-weight:700;font-size:.88rem}
    h1{margin:16px 0 12px;font-size:clamp(2rem,4.5vw,3.7rem);line-height:1.1;letter-spacing:-.02em}
    .hero p{margin:0;color:var(--muted);font-size:1.03rem;max-width:60ch}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0 18px}
    .hero-points{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
    .point{padding:14px 14px 13px;background:linear-gradient(180deg,#fff,#f7f9ff);border:1px solid var(--line);border-radius:18px}
    .point b{display:block;font-size:1.02rem}
    .point span{display:block;color:var(--muted);font-size:.9rem}
    .hero-side{padding:22px;display:grid;gap:14px;align-content:start}
    .mini-stat{padding:16px;border-radius:18px;background:linear-gradient(135deg,#f5f7ff,#fff);border:1px solid var(--line)}
    .mini-stat strong{display:block;font-size:1.2rem}
    .mini-stat span{color:var(--muted);font-size:.9rem}
    .trust-row{display:flex;flex-wrap:wrap;gap:10px}
    .tag{padding:8px 12px;border-radius:999px;background:#fff;border:1px solid var(--line);color:#334060;font-size:.88rem}
    section{padding:18px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:16px}
    .section-head h2{margin:0;font-size:clamp(1.35rem,2.2vw,2rem)}
    .section-head p{margin:0;color:var(--muted);max-width:62ch}
    .grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
    .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .card{padding:20px}
    .card h3,.panel h3,.case-card h3,.review-card h3{margin:0 0 8px;font-size:1.08rem}
    .card p,.panel p,.case-card p,.review-card p{margin:0;color:var(--muted)}
    .icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:14px;background:linear-gradient(135deg,rgba(91,108,255,.14),rgba(255,122,89,.14));color:#324066;font-size:1.25rem}
    .panel{padding:18px}
    .process{counter-reset:step}
    .process .panel{position:relative;padding-top:22px}
    .process .panel:before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:16px;right:16px;font-weight:800;color:rgba(91,108,255,.18);font-size:1.35rem}
    .table-wrap{overflow:auto;border-radius:20px;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow)}
    table{width:100%;border-collapse:collapse;min-width:920px}
    th,td{padding:14px 16px;border-bottom:1px solid #edf1f7;text-align:left;vertical-align:top}
    th{background:#f6f8ff;color:#24304a;font-size:.95rem}
    td{color:#40506b}
    .badge{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:#eef3ff;color:#4050a8;font-size:.84rem;font-weight:700}
    .muted{color:var(--muted)}
    .split{display:grid;grid-template-columns:1.05fr .95fr;gap:14px}
    .timeline{display:grid;gap:12px}
    .timeline-item{padding:16px 18px;position:relative}
    .timeline-item b{display:block;margin-bottom:4px}
    .timeline-item span{color:var(--muted)}
    .timeline-item:before{content:"";position:absolute;left:18px;top:20px;width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:0 0 0 6px rgba(91,108,255,.08)}
    .timeline-item{padding-left:40px}
    .faq{display:grid;gap:12px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;border:0;background:transparent;padding:18px 18px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:1rem;font-weight:700;color:var(--text);cursor:pointer;text-align:left}
    .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;padding:0 18px}
    .faq-item.open .faq-a{max-height:180px;padding-bottom:18px}
    .faq-item.open .faq-q .chev{transform:rotate(180deg)}
    .chev{transition:transform .25s ease}
    .reviews .review-card{padding:18px}
    .review-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}
    .stars{color:#f4a62a;letter-spacing:1px}
    .article-list{display:grid;gap:12px}
    .article-card{padding:16px 18px;display:flex;justify-content:space-between;gap:16px;align-items:flex-start}
    .article-card time{white-space:nowrap;color:var(--muted);font-size:.9rem}
    .form-card{padding:22px}
    .form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
    .field{display:grid;gap:8px}
    label{font-size:.92rem;font-weight:700;color:#2c3958}
    input,select,textarea{width:100%;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;color:var(--text);font:inherit;outline:none;transition:.2s ease}
    input:focus,select:focus,textarea:focus{border-color:rgba(91,108,255,.7);box-shadow:0 0 0 4px rgba(91,108,255,.10)}
    textarea{min-height:130px;resize:vertical}
    .span-2{grid-column:span 2}
    .footer{padding:28px 0 22px;border-top:1px solid rgba(219,227,240,.9);background:#f4f6fb;color:#24304a;margin-top:8px}
    .footer a{color:#24304a}
    .footer-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
    .footer small{color:#5f6b84}
    .contact-box{display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:center}
    .contact-box img{width:120px;border-radius:16px;border:1px solid var(--line);background:#fff;padding:6px}
    .floating{position:fixed;right:16px;bottom:16px;z-index:60;display:grid;gap:10px}
    .floating a,.floating button{box-shadow:0 14px 28px rgba(23,32,51,.12)}
    .backtop{display:none;border:0}
    .mobile-only{display:none}
    .scroll-fade{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease}
    .scroll-fade.in{opacity:1;transform:none}
    .marquee-tags{display:flex;flex-wrap:wrap;gap:10px}
    .price-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
    .price-card{padding:18px}
    .price-card strong{font-size:1.4rem}
    .price-card ul{margin:12px 0 0;padding-left:18px;color:var(--muted)}
    .rating{font-size:1.5rem;font-weight:800;color:#263252}
    @media (max-width: 960px){
      .hero-grid,.split,.footer-grid,.grid-4,.grid-3,.grid-2,.price-grid{grid-template-columns:1fr}
      .hero-points{grid-template-columns:1fr}
      .nav-links{display:none}
      .menu-toggle{display:inline-flex}
      .nav.open .nav-links{display:flex;position:absolute;left:16px;right:16px;top:68px;flex-direction:column;align-items:stretch;padding:12px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow)}
      .nav.open .nav-links a{background:#f7f9ff}
      .form-grid,.span-2{grid-column:span 1}
      .contact-box{grid-template-columns:1fr}
      .mobile-only{display:inline-flex}
    }
    @media (max-width: 640px){
      .container{width:min(var(--container), calc(100% - 22px))}
      .hero-main,.hero-side,.card,.panel,.form-card{padding:18px}
      .hero{padding-top:22px}
      .hero-actions{flex-direction:column}
      .btn{width:100%}
      h1{font-size:2rem}
    }