:root{
  --bg:#f7fafc;
  --card:#fff;
  --ink:#102033;
  --muted:#5f6f82;
  --line:#dfe7ef;
  --brand:#0b6bcb;
  --brand2:#083c72;
  --soft:#eaf4ff;
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--ink);line-height:1.7}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
.container{width:min(1120px,92vw);margin:auto}
.site-header{background:rgba(255,255,255,.92);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(8px)}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;padding:14px 0}
.logo{font-weight:800;color:var(--ink);font-size:20px}
.nav{display:flex;gap:20px;align-items:center;font-size:15px}
.nav a{color:var(--ink)}
.nav-cta{background:var(--brand);color:white!important;padding:9px 14px;border-radius:999px}
.hero{padding:70px 0;background:linear-gradient(135deg,#fff,#e9f5ff)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:38px;align-items:center}
.eyebrow{font-weight:800;letter-spacing:.08em;color:var(--brand);font-size:13px}
.hero h1{font-size:48px;line-height:1.08;margin:12px 0}
.lead{font-size:19px;color:var(--muted)}
.page-lead{max-width:880px}
.zh{color:#52657a}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:12px;font-weight:750;border:1px solid var(--line);transition:.2s ease}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn.ghost{background:#fff;color:var(--brand)}
.btn-light{background:#fff;color:var(--ink)}
.btn-slim{padding:10px 16px;border-radius:14px;min-height:46px}
.hero-card,.card,.quote-box,.geo-block,.product-card{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 10px 30px rgba(15,38,65,.06)}
.hero-card{padding:26px}
.hero-card h2{margin-top:0}
.section{padding:52px 0}
.section-tight-top{padding-top:22px}
.section-head{max-width:860px;margin-bottom:24px}
.section-head h2,.page-head h1{font-size:34px;margin:0 0 8px}
.cards{display:grid;gap:20px}
.cards.three{grid-template-columns:repeat(3,1fr)}
.cards.two{grid-template-columns:repeat(2,1fr)}
.card{padding:24px}
.card-compact{padding:20px 22px}
.card h2,.card h3{margin-top:0}
.card-desc-clamp{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.geo-block{padding:28px}
.page-head{padding:44px 0 10px}
.product-page-head{display:grid;grid-template-columns:minmax(260px,.95fr) minmax(320px,1.05fr);gap:26px;align-items:start}
.section-pill{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:999px;background:#eef8f2;border:1px solid #bfe3cb;color:#1f8b57;font-weight:800;font-size:14px;line-height:1.1;white-space:nowrap;width:auto}
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.product-grid--home{grid-template-columns:repeat(3,1fr)}
.product-card{display:flex;flex-direction:column;min-height:100%;padding:16px}
.product-card__body{display:flex;flex-direction:column;gap:10px}
.product-card__title{font-size:20px;line-height:1.25;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:2.5em}
.product-card__title a{color:var(--ink)}
.product-card__title a:hover{text-decoration:none;color:var(--brand2)}
.product-card__desc{margin:0;color:var(--muted);line-height:1.6}
.product-card__desc--two-line{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:3.2em}
.product-card__meta{display:grid;gap:6px}
.product-card__meta p{margin:0;font-size:15px;color:#405164}
.product-card__actions{margin-top:auto;padding-top:14px}
.product-card__actions--stack{display:grid;gap:10px}
.product-card__actions .btn{width:100%}
.article{background:#fff;margin-top:34px;margin-bottom:44px;padding:38px;border:1px solid var(--line);border-radius:18px}
.article h1{font-size:42px;line-height:1.15;margin-bottom:10px}
.article h2{margin-top:34px}
.article table{width:100%;border-collapse:collapse;margin:18px 0}
.article th,.article td{border:1px solid var(--line);padding:10px;text-align:left}
.article th{background:var(--soft)}
.breadcrumb{font-size:14px;color:var(--muted)}
.content ul{padding-left:22px}
.quote-box{margin-top:36px;padding:26px;background:var(--soft)}
.site-footer{padding:36px 0;background:#071a2f;color:#dbe7f5}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.site-footer p{color:#b7c8da}
@media(max-width:980px){
  .product-grid,.product-grid--home,.product-page-head,.cards.three{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:780px){
  .nav{display:none}
  .hero{padding:42px 0}
  .hero-grid,.product-grid,.product-grid--home,.product-page-head,.cards.three,.cards.two,.footer-grid{grid-template-columns:1fr}
  .hero h1{font-size:34px}
  .article{padding:24px}
  .article h1{font-size:32px}
  .lead{font-size:17px}
  .page-head{padding:34px 0 8px}
  .product-card{padding:14px}
  .btn-slim{min-height:44px}
}