:root{--bg:#f6f7f9;--card:#fff;--fg:#0f172a;--muted:#64748b;--primary:#0f766e;--primary-weak:#e6f4f2;--danger:#dc2626;--warn:#d97706;--border:#e2e8f0;--radius:16px;--tabbar-h:56px;--st-paid:#94a3b8;--st-future:#3b82f6;--st-soon:#f59e0b;--st-today:#dc2626;--st-overdue:#991b1b}@media (prefers-color-scheme:dark){:root{--bg:#0b1220;--card:#121a2b;--fg:#e2e8f0;--muted:#94a3b8;--primary:#2dd4bf;--primary-weak:#123530;--danger:#f87171;--warn:#fbbf24;--border:#1e293b}}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--fg);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;font-family:-apple-system,BlinkMacSystemFont,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Segoe UI,Roboto,sans-serif}.app{flex-direction:column;min-height:100dvh;display:flex}.app-header{z-index:10;padding:calc(12px + env(safe-area-inset-top)) 20px 12px;background:var(--card);border-bottom:1px solid 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