/* ============================================================
 * 公开站尾部：品牌 + 导航（对齐头部 pill 链接）+ 版权
 * 全部样式限定 .site-footer 作用域
 * ============================================================ */

.site-footer {
  margin-top: 0;
  border-top: 1px solid var(--console-nav-border, var(--line));
  background: var(--console-nav, var(--bg));
}

.footer-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 22px 20px 20px;
  text-align: center;
  box-sizing: border-box;
}

.footer-brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  max-width: 640px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 600;
  color: var(--console-nav-muted, var(--muted));
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

.footer-brand:hover {
  color: var(--console-nav-fg, var(--ink));
}

.footer-brand .brand-mark {
  opacity: 0.92;
  box-shadow: none;
}

.footer-brand .brand-mark__img--dark {
  display: none;
}

[data-theme='dark'] .footer-brand .brand-mark__img--light.has-dark {
  display: none;
}

[data-theme='dark'] .footer-brand .brand-mark__img--dark {
  display: block;
}

.footer-intro {
  margin: 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--console-nav-muted, var(--muted));
  opacity: 0.9;
}

/* 对齐头部 .nav-desktop / .nav-link：pill + hover / on */
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 4px;
  max-width: 960px;
}

.footer-nav .nav-link {
  display: inline-flex;
  align-items: center;
  height: 40px;
  padding: 0 14px;
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--console-nav-muted);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition:
    color var(--duration) var(--ease),
    background var(--duration) var(--ease);
  border: none;
  margin: 0;
}

.footer-nav .nav-link:hover {
  background: var(--console-nav-hover);
  color: var(--console-nav-fg);
}

.footer-nav .nav-link.on {
  background: var(--console-nav-active);
  color: var(--brand);
}

.footer-nav .nav-link:focus-visible {
  outline: 2px solid var(--accent, var(--brand));
  outline-offset: 2px;
}

.footer-copy {
  margin: 0;
  font-size: 12px;
  color: var(--console-nav-muted, var(--muted));
  opacity: 0.75;
}

@media (max-width: 768px) {
  .footer-bar {
    gap: 12px;
    padding: 18px 12px 16px;
  }

  .footer-nav .nav-link {
    height: 36px;
    padding: 0 12px;
    font-size: 14px;
  }
}