/* design tokens — 视觉关键词: 硅光 / 并行 / 带宽 / 晶圆绿 */
:root {
  --c-primary: #76b900;            /* 晶圆绿(装饰) */
  --c-primary-ink: #3d6b00;        /* 亮底文字用绿 */
  --c-accent: #0f7f8c;             /* 电光青(链接/聚焦) */
  --bg: #f4f6ef;
  --bg-elev: #ffffff;
  --bg-soft: #ecefe4;
  --fg: #1c2418;
  --fg-muted: #525d49;
  --border: #dbe2cf;
  --shadow: 0 1px 3px rgba(28, 36, 24, 0.10), 0 4px 14px rgba(28, 36, 24, 0.06);
  --radius: 12px;
  --radius-sm: 8px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --lv-ru: #2e7d32; --lv-ru-bg: #e2f1e2;
  --lv-core: #1565c0; --lv-core-bg: #e1ecfa;
  --lv-adv: #a05a00; --lv-adv-bg: #faeeda;
  --lv-fr: #6d28d9; --lv-fr-bg: #ece4fb;
  --code-bg: #131a10;
  --code-fg: #d8e6c9;
  --dur: 160ms;
}
[data-theme="dark"] {
  --c-primary: #8ed13b;
  --c-primary-ink: #a4dd5b;
  --c-accent: #4fd1c5;
  --bg: #0d110b;
  --bg-elev: #161d13;
  --bg-soft: #1c2417;
  --fg: #e7eee1;
  --fg-muted: #a3b096;
  --border: #2b3524;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.5), 0 6px 18px rgba(0, 0, 0, 0.35);
  --lv-ru: #86d78f; --lv-ru-bg: #1d3a20;
  --lv-core: #85b8f5; --lv-core-bg: #1a2c47;
  --lv-adv: #f0b45a; --lv-adv-bg: #413014;
  --lv-fr: #c9aef8; --lv-fr-bg: #2f2450;
  --code-bg: #0a0e08;
  --code-fg: #cfe3c2;
}