/* assets/css/layout.css —— 页头 / 页脚 / 容器 / 标题 / 卡片网格 / 断点 */

/* —— 外壳 —— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(6px);
}
.site-header__inner {
  max-width: 1080px;
  margin: 0 auto;
  /* 横屏刘海机型：左右留出安全区 */
  padding: 10px max(18px, env(safe-area-inset-right)) 10px max(18px, env(safe-area-inset-left));
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.brand { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand__mark {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, var(--brand-mark-light), var(--brand-mark-dark) 70%);
  box-shadow: inset -1px -2px 3px rgba(255, 255, 255, 0.35);
  flex: none;
}
.brand__text { font-weight: 700; letter-spacing: 0.5px; }
.site-nav__link { color: var(--ink-soft); font-size: 14px; }

.app {
  flex: 1 0 auto;
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px max(18px, env(safe-area-inset-right)) 40px max(18px, env(safe-area-inset-left));
  outline: none;
}

.loading { color: var(--muted); padding: 32px 0; text-align: center; }

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--muted);
  font-size: 12.5px;
}
.site-footer__inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 12px max(18px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(18px, env(safe-area-inset-left));
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  justify-content: space-between;
}

/* —— 页标题 —— */
.page-head { margin-bottom: 18px; }
.page-head__row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.page-head__title {
  font-size: 24px;
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.4px;
}
.page-head__desc { color: var(--muted); font-size: 13.5px; margin-top: 6px; }
.link-back { display: inline-block; margin-bottom: 10px; font-size: 13.5px; color: var(--muted); }
.link-back:hover { color: var(--accent-strong); }

/* —— 卡片网格 —— */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(238px, 1fr));
  gap: 14px;
}

/* —— 断点：窄屏 —— */
@media (max-width: 560px) {
  .app { padding: 14px max(12px, env(safe-area-inset-right)) 32px max(12px, env(safe-area-inset-left)); }
  .page-head__title { font-size: 20px; }
  .card-grid { grid-template-columns: minmax(0, 1fr); }
  .overlay__card { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}