:root {
  color-scheme: light;
  --bg: #F7F8FB; --card: #FFFFFF; --text: #202331; --muted: #727789; --border: #E6E8EF;
  --cyan: #58DCFF; --violet: #A56BFF; --pink: #FF70B7;
  --accent-text: #6350BD; --accent-bg: #F0ECFF; --link: #5143A3;
  --editor-bg: #10121B; --editor-panel: #1E2233; --editor-text: #F7F8FF; --editor-muted: #AEB7CC; --editor-border: #39425C;
  --font: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, monospace;
  --radius: 14px; --radius-sm: 9px; --topbar-height: 64px;
  --page-width: 1180px; --shadow: 0 8px 26px rgba(27,35,67,.055);
  --gradient: linear-gradient(110deg, #58DCFF, #A56BFF 65%, #FF70B7);
}