/* === 28-settings-shell.css ===
   设置中心二级目录壳:首页四张入口卡 + 子页(返回条 / PC 二级导航 / 内容区)。
   子页内容仍由各模块渲染 .settings-section,沿用 09-settings.css 既有样式;
   本分片只负责「壳」的布局,不重复业务样式。 */

/* 设置中心需要比旧长页更宽的容器(放下 PC 二级导航 + 内容两栏);
   覆盖 06-panels.css 的 .settings-container 600px(本分片晚加载,等权重后者生效)。
   实际宽度仍受 PC 对话列约束,移动端 width:100% 不受影响。 */
.settings-container { max-width: 1040px; }

/* ── 设置首页 ── */
.settings-home {
  max-width: 800px;
  margin: 0 auto;
  padding: 16px;
  animation: settings-fade-in 0.4s ease-out;
}
.settings-home-head {
  margin-bottom: 24px;
}
.settings-home-title {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-main);
  margin: 0 0 6px 0;
  letter-spacing: -0.02em;
}
.settings-home-sub {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0;
}

.settings-entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.settings-entry-card {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 168px;
  text-align: left;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transit-normal), border-color var(--transit-normal),
              transform var(--transit-normal), box-shadow var(--transit-normal);
}
.settings-entry-card:hover {
  background: var(--bg-surface-hover);
  border-color: var(--brand-border);
  transform: translateY(-2px);
  box-shadow: var(--shadow-ambient);
}
.settings-entry-card:active { transform: translateY(0); background: var(--bg-active); }
.settings-entry-card:focus-visible {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--brand-primary) 22%, transparent);
}
/* 右上角氛围微光(品牌色极淡,hover 增强) */
.settings-entry-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle,
    color-mix(in srgb, var(--brand-primary) 6%, transparent) 0%, transparent 70%);
  border-radius: 50%;
  transform: translate(30%, -30%);
  opacity: 0.5;
  pointer-events: none;
  transition: opacity var(--transit-normal);
}
.settings-entry-card:hover::after { opacity: 1; }

/* 头部:品牌图标 + 进入箭头 */
.settings-entry-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}
.settings-entry-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: var(--brand-bg-light);
  color: var(--brand-primary);
  transition: transform var(--transit-normal);
}
.settings-entry-card:hover .settings-entry-icon { transform: scale(1.05); }
.settings-entry-icon svg { width: 22px; height: 22px; }

.settings-entry-arrow {
  width: 20px;
  height: 20px;
  color: var(--text-dim);
  transition: transform var(--transit-normal), color var(--transit-normal);
}
.settings-entry-card:hover .settings-entry-arrow {
  transform: translateX(4px);
  color: var(--brand-primary);
}

/* 主体:标题 + 描述(描述最多两行) */
.settings-entry-body { flex: 1; margin-bottom: 18px; }
.settings-entry-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.settings-entry-desc {
  font-size: 13px;
  line-height: 1.5;
  color: var(--text-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 状态行:JS 异步回填,空时静默(无边框/无圆点) */
.settings-entry-status {
  display: flex;
  align-items: center;
  min-height: 24px;
  padding-top: 12px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--brand-primary);
  border-top: 1px solid var(--border-glass);
}
.settings-entry-status::before {
  content: '';
  width: 5px;
  height: 5px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--brand-primary);
  box-shadow: 0 0 8px var(--brand-primary);
}
.settings-entry-status:empty { padding-top: 0; border-top: none; }
.settings-entry-status:empty::before { display: none; }

/* ── 子页外壳 ── */
.settings-center {
  max-width: 1000px;
  margin: 0 auto;
  padding: 16px;
  animation: settings-fade-in 0.3s ease-out;
}
.settings-center-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.settings-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px 6px 8px;
  background: var(--bg-hover);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: background var(--transit-fast), color var(--transit-fast);
}
.settings-back-btn:hover { background: var(--bg-active); color: var(--text-main); }
.settings-back-btn svg { width: 16px; height: 16px; }
.settings-center-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
}

.settings-center-body {
  display: flex;
  gap: 28px;
  align-items: flex-start;
}
/* PC 左侧二级导航(移动端隐藏,只走返回条) */
.settings-side-nav {
  flex: none;
  width: 168px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: sticky;
  top: 16px;
}
.settings-side-item {
  text-align: left;
  padding: 10px 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  cursor: pointer;
  transition: background var(--transit-fast), color var(--transit-fast);
}
.settings-side-item:hover { background: var(--bg-hover); color: var(--text-main); }
.settings-side-item.is-active {
  background: var(--brand-bg-light);
  color: var(--text-main);
  font-weight: 600;
}

.settings-pane {
  flex: 1;
  min-width: 0;
}
/* 子页内 .settings-section 在 pane 里左对齐铺满(壳已限宽,不再二次居中) */
.settings-pane .settings-section { margin: 0; max-width: 640px; }

/* ── 移动端:隐藏二级导航,单页返回 ── */
@media (max-width: 768px) {
  .settings-entry-grid { grid-template-columns: 1fr; gap: 14px; }
  .settings-entry-card { padding: 20px; min-height: 152px; }
  .settings-side-nav { display: none; }
  .settings-center-body { display: block; }
  .settings-pane .settings-section { max-width: none; }
}