:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--ink:#172033;--muted:#667085;--line:#d9e0ea;--panel:#fff;--soft:#f4f7fb;--accent:#0f766e;--accent-dark:#115e59;--warm:#f59e0b}*{box-sizing:border-box}html,body{background:var(--soft);min-height:100%;color:var(--ink);margin:0;font-family:Arial,PingFang SC,Microsoft YaHei,sans-serif}a{color:inherit;text-decoration:none}button{background:var(--accent);color:#fff;cursor:pointer;font:inherit;border:0;border-radius:6px;padding:12px 16px}button:hover{background:var(--accent-dark)}.shell{max-width:1120px;margin:0 auto;padding:56px 24px}.hero{padding:48px 0 40px}.eyebrow{color:var(--accent);letter-spacing:0;text-transform:uppercase;margin:0 0 14px;font-size:13px;font-weight:700}h1,h2,p{margin-top:0}.hero h1{max-width:780px;margin-bottom:18px;font-size:clamp(36px,7vw,72px);line-height:1.03}.lead{color:var(--muted);max-width:720px;font-size:19px;line-height:1.7}.section{border-top:1px solid var(--line);padding-top:28px}.sectionHeader{justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;display:flex}.sectionHeader h2{margin:0;font-size:22px}.sectionHeader span{color:var(--muted)}.grid{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;display:grid}.card{background:var(--panel);border:1px solid var(--line);border-radius:8px;min-height:168px;padding:22px;display:block}.card:hover{border-color:var(--accent)}.card strong{margin-bottom:10px;font-size:20px;display:block}.card p{color:var(--muted);min-height:54px;line-height:1.6}.card span{color:var(--accent-dark);font-weight:700}.prototypePage{min-height:100vh}.topbar{border-bottom:1px solid var(--line);background:#fff;justify-content:space-between;align-items:center;padding:14px 24px;display:flex}.topbar a{color:var(--accent-dark);font-weight:700}.workspace{grid-template-columns:320px 1fr;gap:24px;max-width:1180px;margin:0 auto;padding:32px 24px;display:grid}.sidebar,.panel{border:1px solid var(--line);background:#fff;border-radius:8px}.sidebar{padding:24px}.sidebar h1{margin-bottom:12px;font-size:28px;line-height:1.18}.sidebar p{color:var(--muted);line-height:1.65}.panel{min-height:520px;padding:24px}.panelHeader{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding-bottom:16px;display:flex}.panelHeader h2{margin:0;font-size:24px}.panelHeader span{color:#9a3412;background:#fff7ed;border:1px solid #fed7aa;border-radius:999px;padding:5px 10px;font-size:13px}.timeline{gap:14px;margin-top:24px;display:grid}.timeline div{border:1px solid var(--line);border-left:4px solid var(--warm);border-radius:6px;padding:18px}.timeline strong{margin-bottom:8px;display:block}.timeline p{color:var(--muted);margin-bottom:0;line-height:1.6}@media (max-width:760px){.shell{padding:32px 18px}.sectionHeader,.topbar{flex-direction:column;align-items:flex-start}.workspace{grid-template-columns:1fr;padding:20px 16px}}