:root{--bg:#f7f8fb;--card:#fff;--text:#172033;--muted:#65738a;--line:#e7ebf2;--brand:#111827;--accent:#3b82f6;--soft:#eef5ff;--radius:22px;--shadow:0 18px 45px rgba(23,32,51,.08)}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.72}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.topbar{padding:8px 20px;text-align:center;background:#111827;color:#fff;font-size:14px}.site-header{background:linear-gradient(180deg,#fff 0%,#f7f8fb 100%);border-bottom:1px solid var(--line)}.nav-wrap{max-width:1180px;margin:auto;padding:18px 20px;display:flex;gap:22px;align-items:center;justify-content:space-between}.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:22px}.logo img{width:42px;height:42px;border-radius:14px}.nav-links{display:flex;gap:12px;flex-wrap:wrap;justify-content:flex-end}.nav-links a{padding:8px 10px;border-radius:999px;color:#334155;font-size:14px}.nav-links a:hover{background:var(--soft);color:var(--accent)}.nav-toggle{display:none;border:0;background:#111827;color:#fff;border-radius:12px;padding:8px 12px}.search-shell{max-width:880px;margin:0 auto;padding:4px 20px 28px;text-align:center}.search-shell label{font-weight:800}.search-box{display:flex;margin:10px auto 8px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:8px;box-shadow:var(--shadow)}.search-box input{flex:1;border:0;outline:0;padding:12px;font-size:16px}.search-box button,.btn{border:0;background:var(--brand);color:#fff;padding:12px 20px;border-radius:14px;font-weight:800;cursor:pointer}.btn.secondary{background:#fff;color:#111827;border:1px solid var(--line)}.container{max-width:1180px;margin:auto;padding:56px 20px}.hero{display:grid;grid-template-columns:1.08fr .92fr;gap:34px;align-items:center;padding-top:34px}.eyebrow{display:inline-flex;gap:8px;align-items:center;padding:6px 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1fr;gap:24px}.footer-grid p{color:#cbd5e1}.footer-logo img{width:38px;height:38px}@media(max-width:860px){.hero,.grid,.grid.two,.contact-box,.footer-grid{grid-template-columns:1fr}.nav-wrap{align-items:flex-start}.nav-toggle{display:block}.nav-links{display:none;width:100%;flex-direction:column}.nav-links.open{display:flex}.search-box{flex-direction:column}.stats{grid-template-columns:1fr}.timeline .card{grid-template-columns:1fr}.hero{padding-top:20px}.container{padding:38px 16px}}