:root{--bg:#fff;--soft:#f7fbf8;--line:#e5e7eb;--text:#111827;--muted:#4b5563;--navy:#111a35;--accent:#22c55e;--warn:#ff6a3d;--accent-soft:#eaf8ef}
*{box-sizing:border-box}body{margin:0;font-family:"Microsoft YaHei",sans-serif;background:var(--bg);color:var(--text);line-height:1.72}img{max-width:100%;height:auto;display:block}.site-logo,.logo img,.brand img,.header-logo img,.nav-logo img{display:block;width:auto;height:auto;max-height:40px;max-width:190px;object-fit:contain}
.hh-shell{width:min(1180px,calc(100% - 40px));margin:0 auto}.hh-header{position:sticky;top:0;z-index:20;background:var(--navy);border-bottom:1px solid rgba(255,255,255,.14)}.header-row{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:78px}.brand{text-decoration:none}.hh-menu-btn{display:none}.hh-nav{display:flex;gap:22px}.hh-nav a{text-decoration:none;color:#fff;font-weight:700}
.hero{padding:54px 0 30px;background:linear-gradient(180deg,var(--navy) 0%,var(--navy) 60%,#fff 60%,#fff 100%)}.hero-grid,.split-layout,.two-column{display:grid;grid-template-columns:1.02fr .98fr;gap:28px;align-items:center}.eyebrow{display:inline-flex;padding:8px 12px;border-radius:999px;background:rgba(34,197,94,.16);color:#c6ffd8;font-size:13px;font-weight:800}h1{font-size:42px;line-height:1.14;margin:18px 0;color:#fff}h2,h3,p{margin-top:0}.hero-copy p{color:rgba(255,255,255,.82)}.section-head p,.warning-list li{color:var(--muted)}
.check-board,.hero-images,.icon-grid article,.warning-list,.tag-stack span,.path-grid article,.faq-grid details,.cta-box{border:1px solid var(--line);border-radius:26px;background:#fff}.check-board,.warning-list,.faq-grid details,.cta-box{padding:20px}.check-board div{display:flex;justify-content:space-between;gap:14px;padding:14px 0;border-bottom:1px solid var(--line)}.check-board div:last-child{border-bottom:0}.hero-images{padding:18px;display:grid;gap:14px}.hero-images img,.card img,.visual img,.hero img,.hero-visual img,.feature-image img{max-width:100%;height:auto;object-fit:contain}
.section{padding:34px 0}.section-head{max-width:760px;margin-bottom:18px}.icon-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.icon-grid article{padding:22px}.icon-grid span,.path-grid span{display:grid;place-items:center;width:54px;height:54px;border-radius:16px;background:var(--accent-soft);font-size:24px;margin-bottom:14px}.soft,.faq-section{background:var(--soft)}
.warning-list ul{margin:0;padding-left:20px}.warning-list li{margin:10px 0}.tag-stack{display:grid;gap:12px}.tag-stack span{padding:16px;border-color:#ffe1d7;background:#fff7f3;color:var(--warn);font-weight:700}.path-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.path-grid article{padding:18px}.faq-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.faq-grid summary{cursor:pointer;font-weight:700;color:var(--navy)}
.search-tags{display:flex;flex-wrap:wrap;gap:12px}.search-tags span{padding:10px 14px;border-radius:999px;border:1px solid var(--line);background:#fff}.cta-box{display:flex;justify-content:space-between;gap:24px;background:linear-gradient(135deg,#eef9f1,#fff)}.cta-box a{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:14px;text-decoration:none;background:var(--accent);color:#fff;font-weight:700}
.hh-backtop{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border:0;border-radius:50%;background:var(--navy);color:#fff;display:none}.hh-backtop.is-visible{display:block}
@media (max-width:900px){.hh-menu-btn{display:block;border:1px solid rgba(255,255,255,.24);background:transparent;color:#fff;border-radius:12px;padding:10px 14px}.hh-nav{display:none;position:absolute;top:78px;right:20px;flex-direction:column;padding:14px;border:1px solid var(--line);border-radius:18px;background:#fff}.hh-nav a{color:var(--navy)}.hh-nav.is-open{display:flex}.hero-grid,.split-layout,.two-column,.icon-grid,.path-grid,.faq-grid{grid-template-columns:1fr}h1{font-size:34px}.cta-box{flex-direction:column;align-items:flex-start}}

.brand-logo,
.logo-wrap,
.header-logo,
.nav-brand,
.brand,
.hh-brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 6px 14px;
  border-radius: 12px;
  background: #10172a;
  text-decoration: none;
  line-height: 1;
  flex-shrink: 0;
}

.site-logo,
.brand-logo img,
.logo-wrap img,
.header-logo img,
.nav-brand img,
.logo img,
.brand img,
.hh-brand img {
  display: block;
  width: auto;
  height: auto;
  max-height: 36px;
  max-width: 190px;
  object-fit: contain;
}