:root {
  /* Ink — authority base (微暖) */
  --color-ink: #061824;
  --color-ink-soft: #0c2235;

  /* Editorial paper (微暖纸感) */
  --color-bg: #f5f3ef;
  --color-surface: #ffffff;

  /* Text */
  --color-text: #1a2332;
  --color-text-muted: #5a6578;
  --color-heading: #061824;
  --color-kicker: #5a6578;
  --color-footer: #061824;

  /* Bronze accent — 低饱和冶金铜，仅 CTA / Hero / 交互点缀 */
  --color-accent: #9e7349;
  --color-accent-hover: #86613c;
  --color-accent-soft: rgba(158, 115, 73, 0.08);
  --color-accent-on-dark: #c4a882;

  /* Links — 中性正文色，hover 才出 accent */
  --color-link: #061824;
  --color-link-hover: #9e7349;

  /* 品牌绿 — 极少量 tertiary */
  --color-brand-green: #2d6a4f;
  --color-brand-green-soft: rgba(45, 106, 79, 0.06);

  --color-border: #e2e0db;
  --color-border-dark: rgba(255, 255, 255, 0.14);

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
  --font-sans: "Inter", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;
  --font: var(--font-sans);

  --container-max: 1160px;
  --container-px: 24px;
  --section-py: 96px;
  --card-radius: 4px;
  --header-h: 72px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

@media (max-width: 768px) {
  :root {
    --container-px: 16px;
    --section-py: 64px;
    --header-h: 64px;
  }
}