/* ========================================
   Service Center - 统一样式文件
   仅补充Bootstrap 4未覆盖的必要样式
   ======================================== */

/* --- 顶部导航栏定位 --- */
.navbar-top {
  height: 48px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
}

/* --- 侧边栏布局 --- */
.sidebar {
  position: fixed;
  top: 48px;
  left: 0;
  width: 220px;
  height: calc(100vh - 48px);
  overflow-y: auto;
  z-index: 1020;
  transition: transform 0.25s ease;
}

/* 侧边栏菜单样式 */
.sidebar-menu { list-style: none; padding: 0; margin: 0; }
.sidebar-menu a {
  display: block;
  padding: 10px 16px;
  color: #333;
  text-decoration: none;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.sidebar-menu a:hover {
  background: #f8f9fa;
  color: #007bff;
  border-left-color: #007bff;
}

/* 子菜单 */
.sidebar-menu .submenu { display: none; list-style: none; padding: 0; }
.sidebar-menu .open > .submenu { display: block; }
.sidebar-menu .submenu a { padding-left: 32px; font-size: 13px; }

/* 展开箭头 */
.sidebar-menu .has-sub > a::after {
  content: '\f105';
  font-family: FontAwesome;
  float: right;
  transition: transform 0.2s;
}
.sidebar-menu .has-sub.open > a::after { transform: rotate(90deg); }

/* --- 侧边栏移动端适配 --- */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  z-index: 1019;
}
.sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1030;
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); width: 260px; top: 0; height: 100vh; }
  .sidebar.show { transform: translateX(0); }
  .sidebar-overlay.show { display: block; }
  .sidebar-toggle { display: block; }
  .main-content, .breadcrumb-bar { margin-left: 0 !important; }
}

/* --- 主内容区布局 --- */
.main-content {
  margin-left: 220px;
  margin-top: 48px;
  padding: 16px;
  min-height: calc(100vh - 48px);
}

.breadcrumb-bar {
  margin-left: 220px;
  margin-top: 48px;
}

/* --- 首页卡片网格 --- */
.home-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* Flash消息定位 */
.w2p_flash {
  position: fixed;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 9999;
}