/* auth-nav 小部件样式 —— 作用域限定在 #auth-nav，不影响宿主页布局 */
#auth-nav { display: flex; align-items: center; }
#auth-nav .nav-links { display: flex; align-items: center; gap: 18px; }
#auth-nav .nav-links a { color: var(--ink-soft, #4B5563); text-decoration: none; font-size: 14px; font-weight: 500; font-family: inherit; }
#auth-nav .nav-links a:hover { color: var(--ink, #111827); }
#auth-nav .btn {
  display: inline-flex; align-items: center; gap: 6px;
  font: inherit; cursor: pointer; text-decoration: none;
  padding: 8px 16px; border-radius: 8px; font-weight: 500; font-size: 13px;
  border: 1px solid transparent; transition: opacity 120ms ease, background 120ms ease;
}
#auth-nav .btn-secondary {
  background: transparent; color: var(--ink, #111827);
  border-color: var(--border, #E5E7EB);
}
#auth-nav .btn-secondary:hover { background: var(--surface, #FFF); }