/* ============================================================ complete-theme-system.css ------------------------------------------------------------ R14-K 清理 · 2026-04-22 历史: 本文件曾以末端 :root 覆盖所有上游 token (tokens.base.css + theme-N.tokens.css), 导致 / 切换对主色/背景/渐变/阴影几乎全部失效; 复核见《default3_主题取值链核验报告_R12-2.md》。 R14-J (2026-04-22): 先行剥离 --color-primary* 冲突 7 行, 主色生效。 R14-K (2026-04-22): 将本文件唯一定义的 unique token (purple 族 / bg-light/active/selected/dark-secondary / border-secondary / gradient-dark/accent/overlay / shadow-base/text-sm/text-md / shadow-purple / accent-active / opacity-*) 上移至 tokens.base.css §3d, 再删除此处的重复 :root 块、死代码 [data-theme="dark"] (站点未使用该属性值) 与 .high-contrast (未激活)。z-tooltip / z-toast 与 base §17 矛盾的 700/800 反向值亦不再保留, 以 base 为准。保留: @media print :root 打印阴影清零、html[data-theme] 过渡动效、 prefers-reduced-motion 降级、@media (max-width: 768px) 的 shadow 响应式收缩 —— 这些是 non-:root 功能补充, 不构成主题取值链冲突, 保留即可。 ============================================================ */ @media print { :root { --color-text-primary: #000000; --color-text-secondary: #1e293b; --color-text-tertiary: #475569; --color-bg-primary: #ffffff; --color-bg-secondary: #ffffff; --color-bg-tertiary: #ffffff; --color-primary: #1e40af; --color-secondary: #d97706; --shadow-xs: none; --shadow-sm: none; --shadow-base: none; --shadow-md: none; --shadow-lg: none; --shadow-xl: none; --shadow-2xl: none; --shadow-primary: none; --shadow-primary-lg: none; --shadow-secondary: none; --shadow-accent: none; --shadow-purple: none; --shadow-focus: none; --shadow-focus-accent: none; } } html { transition: background-color 0.3s ease, color 0.3s ease; } html[data-theme] *, html[data-theme] *::before, html[data-theme] *::after { transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease; } @media (prefers-reduced-motion: reduce) { html, html[data-theme] *, html[data-theme] *::before, html[data-theme] *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; } } @media screen and (max-width: 768px) { :root { --shadow-lg: 0 8px 20px rgba(15, 23, 42, 0.12); --shadow-xl: 0 12px 32px rgba(15, 23, 42, 0.16); --shadow-2xl: 0 16px 48px rgba(15, 23, 42, 0.2); } }