:root{--bg:#f7f8fa;--surface:#fff;--text:#16181d;--muted:#667085;--line:#e6e8ec;--accent:#1456d8;--accent-dark:#0d3e9d;--max:1180px;color:var(--text);background:var(--bg);font-family:Inter,Noto Sans SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);margin:0;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(var(--max), calc(100% - 40px));margin:0 auto}.site-header{z-index:20;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line);background:#fffffff0;position:sticky;top:0}.nav-wrap{align-items:center;gap:30px;height:72px;display:flex}.brand{align-items:center;gap:10px;margin-right:auto;font-size:1.1rem;font-weight:800;display:inline-flex}.brand-mark{background:var(--text);color:#fff;border-radius:8px;place-items:center;width:34px;height:34px;font-weight:800;display:grid}.brand-logo{width:auto;height:34px;display:block}.desktop-nav{gap:26px;font-size:.95rem;display:flex}.desktop-nav a:hover,.footer-links a:hover{color:var(--accent)}.nav-cta,.button{background:var(--accent);color:#fff;border-radius:6px;padding:10px 17px;font-weight:650}.nav-cta:hover,.button:hover{background:var(--accent-dark)}.hero{background:var(--surface);border-bottom:1px solid var(--line);padding:100px 0 92px}.hero-grid{grid-template-columns:1.1fr .9fr;align-items:center;gap:70px;display:grid}.eyebrow{color:var(--accent);letter-spacing:.08em;text-transform:uppercase;font-size:.82rem;font-weight:800;display:inline-block}.hero h1{letter-spacing:-.045em;margin:14px 0 22px;font-size:clamp(2.8rem,6vw,5.2rem);line-height:1.08}.hero p{color:var(--muted);max-width:640px;font-size:1.1rem}.actions{flex-wrap:wrap;gap:12px;margin-top:32px;display:flex}.button.secondary{color:var(--text);border:1px solid var(--line);background:0 0}.hero-visual{color:#496184;background:linear-gradient(135deg,#e9eef8,#d7e0f2);border-radius:18px;place-items:center;min-height:430px;font-weight:700;display:grid}.section{padding:84px 0}.section.alt{background:var(--surface)}.section-head{justify-content:space-between;align-items:end;gap:30px;margin-bottom:32px;display:flex}.section-head h2{margin:5px 0 0;font-size:clamp(2rem,4vw,3rem);line-height:1.15}.section-head p{color:var(--muted);max-width:540px;margin:0}.grid-3{grid-template-columns:repeat(3,1fr);gap:22px;display:grid}.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;transition:transform .2s,box-shadow .2s;display:block;overflow:hidden}.card:hover{transform:translateY(-4px);box-shadow:0 16px 40px #10182814}.card img{aspect-ratio:16/9;object-fit:cover;background:#e8ebf0;width:100%}.card-body{padding:24px}.card h3{margin:8px 0;font-size:1.25rem}.card p{color:var(--muted);margin:0 0 18px}.card-link{color:var(--accent);font-weight:700}.feature-band{color:#fff;background:#111827;padding:68px 0}.feature-band p{color:#b7c0ce}.footer{color:#d7dbe3;background:#111318;padding:64px 0 24px}.footer-grid{grid-template-columns:1fr 1fr 2fr;gap:50px;display:grid}.footer p{color:#9aa3b2}.footer h3{color:#fff;font-size:.95rem}.footer-links{gap:8px;display:grid}.footer-brand{color:#fff}.footer-bottom{color:#7f8794;border-top:1px solid #292d35;justify-content:space-between;gap:20px;margin-top:45px;padding-top:20px;font-size:.85rem;display:flex}.page-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:78px 0 55px}.page-hero h1{margin:8px 0;font-size:clamp(2.4rem,5vw,4rem);line-height:1.1}.page-hero p{max-width:700px;color:var(--muted);font-size:1.05rem}.prose{max-width:820px;margin:0 auto;padding:70px 0}.prose h1,.prose h2,.prose h3{margin-top:2em;line-height:1.25}.prose h1{margin-top:0}.prose p,.prose li{color:#3f4652}.prose table{border-collapse:collapse;width:100%;margin:24px 0}.prose th,.prose td{border:1px solid var(--line);text-align:left;padding:10px 12px}@media (width<=850px){.desktop-nav{display:none}.hero-grid,.footer-grid{grid-template-columns:1fr}.hero{padding:70px 0}.hero-visual{min-height:280px}.grid-3{grid-template-columns:1fr}.section-head{display:block}.section-head p{margin-top:12px}.nav-cta{display:none}.footer-bottom{display:block}}