: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}.site-nav{justify-content:space-between;align-items:center;gap:24px;width:min(1080px,100% - 48px);margin:0 auto;padding:22px 0;display:flex}.site-nav__brand{color:var(--primary);font-size:20px;font-weight:800}.site-nav__links{color:var(--text-muted);flex-wrap:wrap;justify-content:flex-end;gap:18px;font-size:15px;font-weight:700;display:flex}.site-nav__links a:hover{color:var(--primary)}.hero{place-items:center;min-height:76vh;padding:64px 24px;display:grid}.hero--compact{min-height:auto;padding:64px 24px 48px}.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}.definition{border-left:4px solid var(--primary);background:var(--surface);max-width:780px;color:var(--text);padding:18px 20px;font-size:18px;font-weight:700}.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}.feature-grid--three{grid-template-columns:repeat(3,minmax(0,1fr))}.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}.fact-list,.step-list{gap:12px;max-width:880px;margin:0;padding-left:24px;display:grid}.fact-list li,.step-list li{padding-left:6px}.fact-list li::marker{color:var(--primary);font-weight:800}.step-list li::marker{color:var(--primary);font-weight:800}.comparison{border:1px solid var(--border);background:var(--surface);border-radius:8px;overflow:hidden}.comparison__row{border-top:1px solid var(--border);grid-template-columns:.7fr 1.3fr 1.3fr;display:grid}.comparison__row:first-child{border-top:0}.comparison__row span{padding:16px}.comparison__row span+span{border-left:1px solid var(--border)}.comparison__row--head{background:var(--primary);color:#fff;font-weight:800}.faq-list{gap:14px;max-width:880px;display:grid}.faq-item{border-bottom:1px solid var(--border);padding-bottom:14px}.faq-item p{color:var(--text-muted)}.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,.feature-grid--three{grid-template-columns:repeat(2,minmax(0,1fr))}}@media (max-width:560px){.site-nav{width:min(100% - 32px,1080px);display:block}.site-nav__links{justify-content:flex-start;gap:12px;margin-top:14px}.feature-grid,.feature-grid--three{grid-template-columns:1fr}.comparison{background:0 0;border:0}.comparison__row,.comparison__row--head{border:1px solid var(--border);background:var(--surface);color:var(--text);border-radius:8px;margin-bottom:12px;display:block}.comparison__row--head{display:none}.comparison__row span{padding:12px 14px;display:block}.comparison__row span+span{border-top:1px solid var(--border);border-left:0}.qr-grid{grid-template-columns:1fr}.lead{font-size:18px}.button{width:100%}}