:root[data-theme="light"] {
  color-scheme: light;
  --bg: #F5F6FA; --surface: #FFFFFF; --surface-2: #F0F2F7; --line: #E3E6EE;
  --ink: #1F2433; --muted: #6B7385; --primary: #D7263D; --primary-deep: #A3122A;
  --on-primary: #FFFFFF; --nav-bg: #1F2433; --nav-ink: #C9CEDA; --nav-active-bg: #2C3246;
  --nav-active-ink: #FFFFFF; --top-bg: #FFFFFF; --top-ink: #1F2433; --success: #1E9E5A;
  --warning: #B7791F; --danger: #C0392B; --info: #2F6FDB; --overlay: rgba(15,18,25,.5);
  --shadow: 0 1px 3px rgba(31,36,51,.08); --radius: 8px; --radius-sm: 6px;
  --font-body: "PingFang TC","Noto Sans TC",system-ui,sans-serif;
  --font-num: ui-monospace,"SF Mono",Menlo,monospace;
}