:root{--prim-orange-500:#f15a22;--prim-orange-700:#bf3f0f;--bg:#f5f5f5;--bg-soft:#fff;--border:#e2e2e2;--text:#333;--text-dim:gray;--accent:#f15a22;--accent-contrast:#fff;--chart-grid:#e9e9e9;--scrim:245, 245, 245;--up:#26a69a;--down:#ef5350;--font-body:"Inter", -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Segoe UI", Roboto, sans-serif;--font-display:"Inter", -apple-system, BlinkMacSystemFont, "PingFang TC", "Noto Sans TC", "Segoe UI", Roboto, sans-serif;--radius-xs:4px;--radius-sm:8px;--radius-md:16px;--radius-lg:24px;--accent-soft:#fde6de;--marine:#003c55;--success:#2e7a3d;--success-bg:#ecf8ee;--hero-a:#f15a22;--hero-b:#bf3f0f}:root[data-theme=dark]{--accent-soft:#38241c;--marine:#2a6f93;--success:#6aa674;--success-bg:#243026;--hero-a:#d24a19;--hero-b:#652f1b;--prim-orange-500:#d24a19;--prim-orange-700:#ec6a39;--bg:#151515;--bg-soft:#1d1d1d;--border:#333;--text:#f5f5f5;--text-dim:#838383;--accent:#ec6a39;--accent-contrast:#fff;--chart-grid:#242424;--scrim:21, 21, 21}@media (prefers-color-scheme:dark){:root:not([data-theme=light]){--prim-orange-500:#d24a19;--prim-orange-700:#ec6a39;--bg:#151515;--bg-soft:#1d1d1d;--border:#333;--text:#f5f5f5;--text-dim:#838383;--accent:#ec6a39;--accent-contrast:#fff;--chart-grid:#242424;--scrim:21, 21, 21}}*{box-sizing:border-box;margin:0;padding:0}html{-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-body);flex-direction:column;min-height:100vh;display:flex}a{color:inherit;text-decoration:none}.topbar{border-bottom:1px solid var(--border);background:rgba(var(--scrim), .92);z-index:10;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);align-items:center;gap:14px;padding:12px 16px;display:flex;position:sticky;top:0}.brand{letter-spacing:.3px;white-space:nowrap;font-size:17px;font-weight:800}.brand span{color:var(--accent)}.topbar nav{flex:1;gap:14px;display:none}.topbar nav a{color:var(--text-dim);white-space:nowrap;font-size:13px}.topbar 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