:root{--bg:#ffffff;--panel:#f8fafc;--ink:#1e2122;--muted:#6b7280;--line:#e6e8eb;--accent:#3889ff;--accent-ink:#ffffff;--accent2:#16a34a;--wash-top:#f4f9ff;--wash-bottom:#ffffff}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);background-image:linear-gradient(180deg,var(--wash-top) 0,var(--wash-bottom) 420px);background-repeat:no-repeat;color:var(--ink);font:16px/1.6 -apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}a{color:var(--accent)}.appContainer{width:80%;max-width:1180px;margin:0 auto}@media (max-width:768px){.appContainer{width:95%}}.appBar{border-bottom:1px solid var(--line);background:rgba(255,255,255,.7);-webkit-backdrop-filter:saturate(1.2) blur(6px);backdrop-filter:saturate(1.2) blur(6px);position:-webkit-sticky;position:sticky;top:0;z-index:40}.appBarInner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}.brand{display:inline-flex;align-items:center;gap:9px;font-weight:700;font-size:16px;color:var(--ink);text-decoration:none}.brandDot{width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,#3889ff,#5b8dff)}code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.88em;background:#f1f3f5;border:1px solid var(--line);border-radius:5px;padding:1px 5px;color:#374151}