:root{--background:#fffaf7;--surface:#fff;--surface-muted:#f7efe9;--text:#231f20;--text-muted:#6c6260;--primary:#c7372f;--primary-dark:#982821;--border:#eadbd3}*{box-sizing:border-box}body{background:var(--background);color:var(--text);margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Microsoft YaHei,sans-serif;line-height:1.6}a{color:inherit;text-decoration:none}.hero{place-items:center;min-height:76vh;padding:88px 24px 64px;display:grid}.hero__content,.section{width:min(1080px,100%);margin:0 auto}.eyebrow{color:var(--primary);margin:0 0 16px;font-size:15px;font-weight:700}h1,h2,h3,p{margin-top:0}h1{margin-bottom:18px;font-size:clamp(44px,8vw,88px);line-height:1}h2{margin-bottom:12px;font-size:clamp(28px,4vw,42px);line-height:1.2}h3{margin-bottom:12px;font-size:22px;line-height:1.3}.lead{max-width:720px;color:var(--text-muted);margin-bottom:32px;font-size:22px}.actions{flex-wrap:wrap;gap:14px;display:flex}.button{border-radius:8px;justify-content:center;align-items:center;min-height:48px;padding:0 22px;font-weight:700;display:inline-flex}.button--primary{background:var(--primary);color:#fff}.button--primary:hover{background:var(--primary-dark)}.button--secondary{border:1px solid var(--border);background:var(--surface)}.section{padding:72px 24px}.section--muted{background:var(--surface-muted);width:100%;max-width:none}.section--muted>*{width:min(1080px,100%);margin-left:auto;margin-right:auto}.section__header{max-width:760px;margin-bottom:32px}.section__header p,.card p,.cta p{color:var(--text-muted)}.feature-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;display:grid}.card{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:22px}.scenario-list{gap:12px;margin:0;padding:0;list-style:none;display:grid}.scenario-list li{border-left:4px solid var(--primary);background:var(--surface);padding:14px 18px}.cta{text-align:center}.cta__header{margin-left:auto;margin-right:auto}.qr-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:560px;margin:0 auto 24px;display:grid}.qr-card{border:1px solid var(--border);background:var(--surface);border-radius:8px;margin:0;padding:18px}.qr-card img{width:100%;max-width:220px;height:auto;margin:0 auto 12px;display:block}.qr-card figcaption{color:var(--text-muted);font-weight:700}.contact-line a{color:var(--primary);font-weight:700}@media (max-width:860px){.hero{min-height:70vh;padding-top:64px}.feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:560px){.feature-grid,.qr-grid{grid-template-columns:1fr}.lead{font-size:18px}.button{width:100%}}