/* Site-specific footer: a quiet paper note with a dedicated filing row. */
.site-footer {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  justify-items: center;
  gap: 14px;
  overflow: hidden;
  margin-top: 42px;
  margin-bottom: 28px;
  padding: 25px 28px 20px;
  border: 1px solid var(--dash);
  border-radius: 18px 5px 18px 5px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--color-accent-soft) 42%, transparent) 0, transparent 42%),
    color-mix(in srgb, var(--paper) 88%, var(--paper-warm) 12%);
  box-shadow: 4px 5px 0 rgba(var(--paper-shadow-rgb), 0.06), var(--soft-shadow);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.7;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  width: 76px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--color-accent);
  opacity: 0.82;
  transform: translateX(-50%);
}

.site-footer__left {
  display: flex;
  align-items: baseline;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  text-align: center;
}

.site-footer__copyright {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: 0.03em;
}

.site-footer__motto {
  color: var(--color-accent-strong);
  font-size: 14px;
  letter-spacing: 0.13em;
}

.site-footer__motto::before {
  content: "◇";
  margin-right: 11px;
  color: var(--color-accent-muted);
  font-size: 0.72em;
  vertical-align: 0.12em;
}

.site-footer__right {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding-top: 13px;
  border-top: 1px dashed var(--dash);
  text-align: center;
}

.site-footer__row {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.site-footer__row::before {
  content: "备案";
  padding: 2px 7px;
  border: 1px solid color-mix(in srgb, var(--color-accent) 42%, var(--dash));
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-accent-soft) 60%, transparent);
  color: var(--color-accent-strong);
  font-size: 10px;
  letter-spacing: 0.12em;
  line-height: 1.5;
}

.site-footer a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 28px;
  padding: 3px 10px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  transition: color var(--motion-base) var(--ease-standard), border-color var(--motion-base) var(--ease-standard), background-color var(--motion-base) var(--ease-standard), transform var(--motion-base) var(--ease-standard);
}

.site-footer a::before {
  content: "";
  width: 6px;
  height: 6px;
  border: 1px solid var(--color-accent-muted);
  transform: rotate(45deg);
}

.site-footer a:hover {
  border-color: color-mix(in srgb, var(--color-accent) 48%, var(--dash));
  background: color-mix(in srgb, var(--color-accent-soft) 48%, transparent);
  color: var(--color-accent-strong);
  transform: translateY(-1px);
}

.dark-mode .site-footer a:hover {
  color: var(--color-accent-muted);
}

@media (max-width: 600px) {
  .site-footer {
    gap: 13px;
    margin-top: 34px;
    margin-bottom: 20px;
    padding: 23px 18px 18px;
    border-radius: 15px 4px 15px 4px;
  }

  .site-footer::before {
    width: 64px;
  }

  .site-footer__left {
    gap: 5px 10px;
  }

  .site-footer__copyright,
  .site-footer__motto {
    width: 100%;
  }

  .site-footer__motto {
    font-size: 13px;
  }

  .site-footer__right {
    padding-top: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .site-footer a {
    transition: none;
  }
}