/* ==========================================================================
   千谋 CLM 静态演示站 · 应用外壳（后台管理端）
   ========================================================================== */

body.app-body {
  overflow: hidden;
  background: var(--el-bg-page);
  /* 应用页不显示页面级滚动，滚动交给 .app-main */
  overscroll-behavior: none;
  /* 关闭浏览器原生“下拉刷新/橡皮筋”干扰 */
  height: 100vh;
  height: 100dvh;
}

.app {
  display: flex;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  /* 限制在视口内，避免 html 也跟着滚动 */
  position: relative;
}

/* ============================ 侧边栏 ============================ */
.app-sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  transition: width 0.28s ease;
  overflow: hidden;
  z-index: 20;
}

.app.is-collapsed .app-sidebar {
  width: var(--sidebar-width-collapsed);
}

.sidebar-logo {
  height: var(--logo-height);
  min-height: var(--logo-height);
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  overflow: hidden;
  cursor: pointer;
  user-select: none;
}

.sidebar-logo .mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, #409eff, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 17px;
  font-weight: 700;
  flex-shrink: 0;
  letter-spacing: -1px;
  box-shadow: 0 2px 8px rgba(64, 158, 255, 0.4);
}

.sidebar-logo .text {
  min-width: 0;
}

.sidebar-logo .name {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
}

.sidebar-logo .slogan {
  color: rgba(255, 255, 255, 0.45);
  font-size: 10px;
  white-space: nowrap;
  letter-spacing: 0.4px;
}

.app.is-collapsed .sidebar-logo {
  padding: 0 15px;
}
.app.is-collapsed .sidebar-logo .text {
  display: none;
}

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding-bottom: 14px;
}

.sidebar-scroll::-webkit-scrollbar {
  width: 5px;
}
.sidebar-scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.16);
}

/* 区域分组标题 */
.nav-section {
  padding: 14px 18px 6px;
  font-size: 10px;
  letter-spacing: 1.2px;
  color: rgba(255, 255, 255, 0.34);
  white-space: nowrap;
  text-transform: uppercase;
}
.app.is-collapsed .nav-section {
  padding: 12px 0 6px;
  text-align: center;
  font-size: 9px;
  letter-spacing: 0;
}

/* 一级菜单 */
.nav-group {
  user-select: none;
}

.nav-group-head {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 16px;
  color: var(--sidebar-text);
  font-size: 14px;
  cursor: pointer;
  transition: all var(--tr-fast);
  position: relative;
}

.nav-group-head:hover {
  background: var(--sidebar-bg-hover);
  color: #fff;
}

.nav-group-head .icon {
  font-size: 17px;
  flex-shrink: 0;
}

.nav-group-head .label {
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.nav-group-head .arrow {
  font-size: 12px;
  transition: transform 0.25s ease;
  color: rgba(255, 255, 255, 0.35);
}

.nav-group.is-open > .nav-group-head {
  color: #fff;
}

.nav-group.is-open > .nav-group-head .arrow {
  transform: rotate(90deg);
}

.nav-group.is-current > .nav-group-head::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--el-color-primary);
}

.nav-sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
  background: rgba(0, 0, 0, 0.18);
}

.nav-group.is-open .nav-sub {
  max-height: 760px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 16px 0 42px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--tr-fast);
  position: relative;
}

.nav-item:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.nav-item.is-active {
  background: linear-gradient(90deg, rgba(64, 158, 255, 0.28), rgba(64, 158, 255, 0.06));
  color: #fff;
  font-weight: 500;
}

.nav-item.is-active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: 0 2px 2px 0;
  background: var(--el-color-primary);
}

.nav-item .nv-tag {
  margin-left: auto;
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 8px;
  background: rgba(64, 158, 255, 0.22);
  color: #8ec5ff;
  font-weight: 500;
}

.nav-item .nv-tag.hot {
  background: rgba(245, 108, 108, 0.22);
  color: #ffa3a3;
}

/* 折叠态：只显示图标，悬停出浮层 */
.app.is-collapsed .nav-group-head {
  justify-content: center;
  padding: 0;
}
.app.is-collapsed .nav-group-head .label,
.app.is-collapsed .nav-group-head .arrow {
  display: none;
}
.app.is-collapsed .nav-sub {
  max-height: 0 !important;
}
.app.is-collapsed .nav-group:hover > .nav-sub {
  max-height: 420px !important;
  position: absolute;
  left: var(--sidebar-width-collapsed);
  width: 190px;
  z-index: 30;
  background: #0b2545;
  border-radius: 0 6px 6px 0;
  box-shadow: var(--shadow-xl);
}
.app.is-collapsed .nav-item {
  padding-left: 16px;
}

/* ============================ 主区域 ============================ */
.app-main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* 顶部导航 */
.navbar {
  height: var(--navbar-height);
  min-height: var(--navbar-height);
  background: #fff;
  box-shadow: var(--shadow-navbar);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 20px;
  z-index: 15;
}

.navbar .hamburger {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  color: var(--el-text-regular);
  font-size: 19px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--tr-fast);
}
.navbar .hamburger:hover {
  background: var(--el-fill-light);
}

.navbar .global-search {
  width: 340px;
  max-width: 32vw;
}

.navbar .global-search .input {
  height: 34px;
  background: #f5f7fa;
  border-color: transparent;
  border-radius: 17px;
  font-size: var(--fs-sm);
}
.navbar .global-search .input:focus {
  background: #fff;
  border-color: var(--el-color-primary);
}

.navbar .right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  color: var(--el-text-regular);
  font-size: var(--fs-sm);
  cursor: pointer;
  transition: all var(--tr-fast);
  white-space: nowrap;
}
.nav-btn:hover {
  background: var(--el-fill-light);
  color: var(--el-color-primary);
}
.nav-btn.is-active {
  background: var(--el-color-primary);
  color: #fff;
}
.nav-btn.is-active:hover {
  background: var(--el-color-primary-light-3);
  color: #fff;
}
.nav-btn .icon {
  font-size: 16px;
}

.nav-icon-btn {
  position: relative;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-xs);
  border: none;
  background: transparent;
  color: var(--el-text-regular);
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-icon-btn:hover {
  background: var(--el-fill-light);
  color: var(--el-color-primary);
}
.nav-icon-btn .dot {
  position: absolute;
  top: 3px;
  right: 3px;
  min-width: 15px;
  height: 15px;
  padding: 0 4px;
  border-radius: 8px;
  background: var(--el-color-danger);
  color: #fff;
  font-size: 10px;
  line-height: 15px;
  font-weight: 600;
}

.navbar .user-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 10px 4px 4px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--tr-fast);
}
.navbar .user-chip:hover {
  background: var(--el-fill-light);
}
.navbar .user-chip .uname {
  font-size: var(--fs-sm);
  color: var(--el-text-primary);
}

/* 面包屑条 */
.content-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: #fff;
  border-bottom: 1px solid var(--el-border-lighter);
}
.content-head .page-title {
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--el-text-primary);
}
.content-head .page-desc {
  font-size: var(--fs-xs);
  color: var(--el-text-secondary);
}

/* 内容滚动区 */
.app-content {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 16px 20px 32px;
}

.app-content.is-flush {
  padding: 0;
}

/* 标签页导航（多页签风格，可选） */
.page-tabs {
  display: flex;
  gap: 6px;
  align-items: center;
  padding: 8px 20px 0;
  background: #fff;
  border-bottom: 1px solid var(--el-border-lighter);
  overflow-x: auto;
}
.page-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-xs) var(--radius-xs) 0 0;
  font-size: var(--fs-sm);
  color: var(--el-text-regular);
  background: transparent;
  border: none;
  cursor: pointer;
  white-space: nowrap;
}
.page-tab:hover {
  color: var(--el-color-primary);
}
.page-tab.is-active {
  color: var(--el-color-primary);
  background: var(--el-color-primary-light-9);
  font-weight: 500;
}

/* ============================ 演示提示条 ============================ */
.demo-strip {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 9px 20px;
  background: linear-gradient(90deg, #fff7e6, #fffdf7);
  border-bottom: 1px solid #ffe4ba;
  font-size: var(--fs-xs);
  color: #b26a00;
}
.demo-strip .icon {
  font-size: 14px;
}
.demo-strip strong {
  color: #8a5000;
}
.demo-strip .spacer {
  margin-left: auto;
}
.demo-strip a {
  color: #0d6efd;
}

/* ============================ 页面通用骨架 ============================ */
.page-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}
.page-header .ph-main {
  flex: 1;
  min-width: 0;
}
.page-header h2 {
  font-size: 20px;
  font-weight: 700;
  color: var(--el-text-primary);
  display: flex;
  align-items: center;
  gap: 9px;
}
.page-header h2 .icon {
  color: var(--el-color-primary);
  font-size: 21px;
}
.page-header .ph-sub {
  margin-top: 5px;
  font-size: var(--fs-sm);
  color: var(--el-text-secondary);
}
.page-header .ph-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--fs-md);
  font-weight: 600;
  color: var(--el-text-primary);
  margin: 20px 0 12px;
}

/* 双栏布局 */
.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 16px;
  align-items: start;
}
@media (max-width: 1280px) {
  .split-layout {
    grid-template-columns: minmax(0, 1fr);
  }
}

.cols {
  display: grid;
  gap: 16px;
}
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cols-5 { grid-template-columns: repeat(5, minmax(0, 1fr)); }

@media (max-width: 1400px) {
  .cols-5 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (max-width: 1180px) {
  .cols-3,
  .cols-4,
  .cols-5 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 820px) {
  .cols-2,
  .cols-3,
  .cols-4,
  .cols-5 { grid-template-columns: minmax(0, 1fr); }
}

/* 移动端遮罩 */
.sidebar-mask {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 19;
}

@media (max-width: 900px) {
  .app-sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    transform: translateX(-100%);
    transition: transform 0.28s ease;
    width: 240px;
  }
  .app.is-mobile-open .app-sidebar {
    transform: none;
  }
  .app.is-mobile-open .sidebar-mask {
    display: block;
  }
  .app.is-collapsed .app-sidebar {
    width: 240px;
  }
  .app.is-collapsed .sidebar-logo .text {
    display: block;
  }
  .app.is-collapsed .nav-group-head .label,
  .app.is-collapsed .nav-group-head .arrow {
    display: block;
  }
  .app.is-collapsed .nav-sub {
    max-height: 0 !important;
  }
  .app.is-collapsed .nav-group.is-open .nav-sub {
    max-height: 760px !important;
    position: static;
    width: auto;
    background: rgba(0, 0, 0, 0.18);
    box-shadow: none;
  }
  .navbar .global-search {
    display: none;
  }
  .app-content {
    padding: 12px;
  }
}

/* 通知铃铛旁的实时连接提示（复刻原系统 WebSocket 提示） */
.ws-toast {
  position: fixed;
  top: 74px;
  right: 22px;
  z-index: 2500;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  width: 292px;
  padding: 12px 14px;
  background: #fff;
  border: 1px solid var(--el-border-lighter);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-xl);
  animation: fadeUp 0.3s both;
}
.ws-toast .icon {
  color: var(--el-text-secondary);
  font-size: 17px;
}
.ws-toast .t {
  font-size: var(--fs-base);
  font-weight: 600;
  color: var(--el-text-primary);
}
.ws-toast .d {
  font-size: var(--fs-xs);
  color: var(--el-text-secondary);
  margin-top: 3px;
}
.ws-toast .x {
  margin-left: auto;
  border: none;
  background: none;
  cursor: pointer;
  color: var(--el-text-placeholder);
  font-size: 14px;
}
.ws-toast.is-hidden {
  display: none;
}