/* 皮肤:dark —— 现代深色技术风 */
[data-theme="dark"] {
  --c-surface: 17 19 25;
  --c-surface2: 28 31 40;
  --c-ink: 226 230 240;
  --c-muted: 148 156 175;
  --c-line: 44 49 63;
  --c-accent: 34 211 238;
  --c-accent2: 129 140 248;
  --radius: 12px;
  --shadow-sm: 0 1px 2px rgba(0 0 0 / 0.4);
  --shadow-md: 0 8px 20px -8px rgba(0 0 0 / 0.6);
  --shadow-lg: 0 24px 48px -16px rgba(0 0 0 / 0.7);
}

[data-theme="dark"] body {
  font-family: "Inter", ui-sans-serif, system-ui, "Noto Sans SC", sans-serif;
  letter-spacing: -0.011em;
  background:
    radial-gradient(1100px 420px at 100% -10%, rgb(var(--c-accent) / 0.10), transparent 60%),
    radial-gradient(900px 380px at -10% 0%, rgb(var(--c-accent2) / 0.12), transparent 55%),
    rgb(var(--c-surface));
}
[data-theme="dark"] .prose-content a {
  text-decoration: none;
  border-bottom: 1px dashed rgb(var(--c-accent));
}