/* ============================================
   阿提拉学习 · PC管理后台 - Warm Cream Dashboard
   色系：暖奶油 #F8F4EC / 炭黑 #2A2C32 / 明黄 #FFD12A
   灵感：Crextio / Salesforce 暖色仪表盘
   卡片：Neumorphic 双层阴影（左上亮 + 右下暗）
   ============================================ */

:root {
  --bg-global: #F1ECDF;
  --bg-global-gradient: linear-gradient(135deg, #FFF8E1 0%, #FFECB3 18%, #F5E6C8 40%, #F1ECDF 65%, #EDE7DA 100%);
  --bg-sidebar: #F6F2E8;
  --bg-surface: #EBE5D8;
  --bg-surface-2: #E3DDD0;
  --bg-card: #F8F4EA;
  --bg-card-warm: #F8F4EA;
  --bg-dark-card: #2A2C32;
  --text-primary: #2A2C32;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --text-on-dark: #FFFFFF;
  --accent: #FFD12A;
  --accent-hover: #F0C020;
  --accent-light: rgba(255, 209, 42, 0.12);
  --accent-glow: rgba(255, 209, 42, 0.30);
  --accent-2: #E8734A;
  --accent-warm: #D4A853;
  --success: #22C55E;
  --warning: #F59E0B;
  --danger: #EF4444;
  --border: transparent;
  --border-strong: rgba(0, 0, 0, 0.05);

  --neu-light: rgba(255, 255, 250, 0.70);
  --neu-dark: rgba(174, 164, 140, 0.18);
  --shadow-sm:
    3px 3px 8px var(--neu-dark),
    -3px -3px 8px var(--neu-light);
  --shadow:
    5px 5px 14px var(--neu-dark),
    -5px -5px 14px var(--neu-light);
  --shadow-lg:
    7px 7px 20px var(--neu-dark),
    -7px -7px 20px var(--neu-light);
  --shadow-xl:
    10px 10px 30px rgba(174, 164, 140, 0.22),
    -10px -10px 30px rgba(255, 255, 250, 0.80);
  --shadow-warm:
    4px 4px 14px rgba(200, 180, 120, 0.18),
    -4px -4px 14px var(--neu-light);
  --shadow-inset:
    inset 2px 2px 6px var(--neu-dark),
    inset -2px -2px 6px var(--neu-light);

  --radius: 20px;
  --radius-sm: 14px;
  --radius-lg: 28px;
  --radius-pill: 100px;
  --transition: 0.3s cubic-bezier(.22, .61, .36, 1);
}

/* Iconfont Symbol SVG base styles */
.icon {
  width: 1em;
  height: 1em;
  vertical-align: -0.15em;
  fill: currentColor;
  overflow: hidden;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  height: 100%;
  background: var(--bg-global-gradient);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: "Inter", "Noto Sans SC", "PingFang SC", -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  height: 100vh;
}

/* ======== App Layout ======== */
.app-container {
  height: 100vh;
  overflow: hidden;
}

.app-container > .el-container {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  transition: all var(--transition);
}

.app-container > .el-aside {
  flex-shrink: 0;
}

/* ======== Sidebar ======== */
.app-sidebar {
  background: var(--bg-sidebar) !important;
  border-right: none !important;
  transition: width var(--transition);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 4px 0 14px var(--neu-dark);
}

.sidebar-logo {
  height: 72px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  border-bottom: none;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
}

/* 侧边栏收起时：Logo 与顶部菜单项正常显示 */
.app-sidebar.is-collapsed .sidebar-logo {
  padding: 0 14px;
  justify-content: center;
}

.app-sidebar.is-collapsed .sidebar-logo .logo-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  object-fit: contain;
  border-radius: 8px;
}

.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* ---- Sidebar Custom Navigation ---- */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.sidebar-nav.is-collapsed {
  padding: 8px 8px;
  align-items: center;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 14px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  white-space: nowrap;
  user-select: none;
  position: relative;
}

.nav-item:hover {
  background: var(--bg-surface);
  color: var(--text-primary);
}

.nav-item.is-active {
  background: var(--accent);
  color: var(--text-primary);
  font-weight: 600;
  box-shadow:
    3px 3px 8px rgba(174, 164, 140, 0.20),
    -2px -2px 6px rgba(255, 255, 250, 0.60),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
}

.nav-item.is-active .nav-item-icon {
  color: var(--text-primary);
}

.nav-item-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color 0.25s cubic-bezier(.22, .61, .36, 1);
}

.nav-item:hover .nav-item-icon {
  color: var(--text-primary);
}

.nav-item-icon svg {
  width: 20px;
  height: 20px;
}

.nav-item-icon svg.icon {
  fill: currentColor;
}

.nav-item-label {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Collapsed state: icon only */
.sidebar-nav.is-collapsed .nav-item {
  width: 44px;
  height: 44px;
  padding: 0;
  justify-content: center;
  border-radius: 14px;
}

.sidebar-nav.is-collapsed .nav-item-label,
.sidebar-nav.is-collapsed .nav-submenu-arrow,
.sidebar-nav.is-collapsed .nav-submenu-children {
  display: none !important;
}

.sidebar-nav.is-collapsed .nav-item-icon {
  margin-right: 0;
}

/* ---- Submenu ---- */
.nav-submenu-trigger {
  position: relative;
}

.nav-submenu-arrow {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.25s cubic-bezier(.22, .61, .36, 1);
  color: var(--text-muted);
  margin-left: auto;
}

.nav-submenu-arrow svg {
  width: 14px;
  height: 14px;
}

.nav-submenu-arrow.is-open {
  transform: rotate(180deg);
}

.nav-submenu-children {
  display: flex;
  flex-direction: column;
  gap: 1px;
  padding: 2px 0 4px 0;
  overflow: hidden;
}

.nav-child-item {
  height: 38px;
  padding: 0 14px 0 22px;
  font-size: 13px;
  gap: 8px;
}

.nav-child-item .nav-item-label {
  font-weight: 500;
}

.nav-child-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  flex-shrink: 0;
  transition: all 0.2s;
  opacity: 0.4;
}

.nav-child-item:hover .nav-child-dot {
  background: var(--accent-hover);
  opacity: 0.8;
}

.nav-child-item.is-active .nav-child-dot {
  background: var(--text-primary);
  opacity: 1;
  box-shadow: 0 0 6px var(--accent-glow);
}

/* Submenu slide transition */
.submenu-slide-enter-active,
.submenu-slide-leave-active {
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
  max-height: 300px;
  opacity: 1;
}

.submenu-slide-enter-from,
.submenu-slide-leave-to {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: none;
}

.cloud-status {
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.cloud-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.cloud-status.online::before {
  background: var(--success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}

.cloud-status.offline::before {
  background: var(--warning);
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.cloud-status.online { color: var(--success); }
.cloud-status.offline { color: var(--warning); }

/* ======== Header ======== */
.app-header {
  background: transparent !important;
  border-bottom: none !important;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 64px !important;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-left .el-breadcrumb {
  font-size: 14px;
}

.header-left .el-breadcrumb__inner {
  color: var(--text-muted) !important;
}

.header-left .el-breadcrumb__item:last-child .el-breadcrumb__inner {
  color: var(--text-primary) !important;
  font-weight: 600;
}

.header-left .el-breadcrumb__separator {
  color: var(--text-muted) !important;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ======== Main Content ======== */
.app-main {
  background: transparent !important;
  padding: 24px 32px !important;
  overflow-y: auto;
  overflow-x: hidden;
  min-width: 0;
}

/* 驾驶舱：允许自然滚动 */

/* ======== Dashboard — 行动导向首页 ======== */
.dashboard-root {
  width: 100%;
}

.dashboard-root .pulse-card {
  background: var(--bg-card);
  border: none;
  box-shadow: var(--shadow);
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
}

.dashboard-root .pulse-card:hover {
  box-shadow: var(--shadow-lg);
}

.dark-card {
  background: var(--bg-dark-card) !important;
  color: var(--text-on-dark) !important;
  border: none !important;
}

.dark-card * {
  color: var(--text-on-dark);
}

.dark-card .text-muted-on-dark {
  color: rgba(255, 255, 255, 0.5);
}

.warm-accent-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
  box-shadow: 0 0 6px var(--accent-glow);
}

/* -- Left-Top: Quick Nav -- */
.quick-nav-list {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.quick-nav-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 13px 16px;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
}

.quick-nav-row:hover {
  background: var(--bg-surface);
}

.quick-nav-row .nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quick-nav-row .nav-icon svg {
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  transition: color 0.25s cubic-bezier(.22, .61, .36, 1);
}

.quick-nav-row:hover .nav-icon svg {
  color: var(--accent-hover);
}

.quick-nav-row .nav-label {
  flex: 1;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.quick-nav-row .nav-chevron {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
}

.quick-nav-row .nav-chevron svg {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
  transition: color 0.25s cubic-bezier(.22, .61, .36, 1);
}

.quick-nav-row:hover .nav-chevron {
  transform: translateX(3px);
}

.quick-nav-row:hover .nav-chevron svg {
  color: var(--accent-hover);
}

/* -- Left-Bottom: Traffic Chart -- */
.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.chart-header h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.chart-toggle {
  display: flex;
  gap: 0;
  background: var(--bg-surface);
  border-radius: var(--radius-pill);
  padding: 3px;
}

.chart-toggle-btn {
  font-size: 12px;
  font-weight: 600;
  padding: 5px 14px;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  background: transparent;
  color: var(--text-muted);
  transition: all 0.2s;
}

.chart-toggle-btn.active {
  background: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 2px 8px var(--accent-glow);
}

.chart-toggle-btn:hover:not(.active) {
  color: var(--text-primary);
}

.chart-container {
  width: 100%;
  height: 260px;
  min-height: 200px;
}

/* -- Right-Top: System Status -- */
.status-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.status-row:last-child {
  border-bottom: none;
}

.status-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.status-dot.green {
  background: var(--success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.4);
}

.status-dot.orange {
  background: var(--warning);
  box-shadow: 0 0 8px rgba(245, 158, 11, 0.4);
  animation: pulse 1.5s infinite;
}

.status-dot.red {
  background: var(--danger);
  box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
}

.status-info .status-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.status-info .status-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
  display: block;
}

.status-tag {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: none;
}

.status-tag.tag-green {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
}

.status-tag.tag-orange {
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
}

.status-tag.tag-red {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

/* -- Right-Bottom: Stats Grid + Announcements -- */
.stats-mini-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.stats-mini-card {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 20px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
  border: none;
  box-shadow: var(--shadow-sm);
}

.stats-mini-card:hover {
  background: var(--bg-card);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.stats-mini-card.is-error {
  cursor: default;
  transform: none;
  outline: 2px solid rgba(239, 68, 68, 0.15);
}

.stats-mini-value {
  font-size: 36px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-bottom: 6px;
}

.stats-mini-label {
  font-size: 13px;
  color: var(--text-secondary);
  font-weight: 500;
}

.stats-mini-accent-bar {
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin-top: 10px;
}

.stats-loading-indicator {
  color: var(--accent);
  font-size: 24px;
  display: inline-flex;
  align-items: center;
}

.stats-loading-indicator .is-loading {
  animation: stats-spin 1s linear infinite;
}

@keyframes stats-spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.stats-error-value {
  color: var(--text-muted);
  cursor: pointer;
  font-size: 28px;
}

.stats-retry .el-link {
  font-size: 12px;
}

.stats-retry .el-icon {
  margin-right: 2px;
}

/* Announcement inline block */
.ann-inline {
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  border: none;
  box-shadow: var(--shadow-inset);
}

.ann-inline-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.ann-inline-header h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.ann-empty {
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
  padding: 20px 0;
}

.ann-list-compact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ann-list-compact .ann-compact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-card);
  border-radius: 12px;
  transition: box-shadow 0.2s;
}

.ann-list-compact .ann-compact-item:hover {
  box-shadow: var(--shadow-sm);
}

.ann-compact-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.ann-compact-time {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}

/* Keep old ann-section styles for dialogs that may reference them */
.ann-section {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
}

.ann-section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.ann-section-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
}

.ann-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ann-item {
  padding: 20px 24px;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  border: none;
  transition: box-shadow 0.2s, transform 0.2s;
}

.ann-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.ann-item-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.ann-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.ann-sticky-tag {
  flex-shrink: 0;
}

.ann-content {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 10px;
  white-space: pre-wrap;
  word-break: break-word;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ann-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  color: var(--text-muted);
}

.ann-meta .el-link {
  font-size: 12px;
  margin-left: auto;
}

.ann-meta .el-link + .el-link {
  margin-left: 0;
}

/* ======== Hotword Tags ======== */
.hotword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.hotword-tag {
  cursor: default;
}

.hotword-input {
  width: 120px;
}

/* ======== Report Result ======== */
.report-result {
  margin-top: 20px;
  padding: 20px;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  border: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.report-summary {
  display: flex;
  gap: 24px;
  font-size: 14px;
  color: var(--text-secondary);
}

.report-summary b {
  color: var(--text-primary);
  font-weight: 700;
  margin-left: 4px;
}

/* ======== Module Grid (legacy, kept for non-dashboard pages) ======== */
.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.module-card {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.module-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  opacity: 0;
  transition: opacity 0.3s;
}

.module-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.module-card:hover::before {
  opacity: 1;
}

.module-card-corner {
  display: none;
}

.module-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.module-card-header h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

.module-action-btn {
  flex-shrink: 0;
  padding: 8px 22px;
  font-size: 13px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  background: var(--accent);
  color: var(--text-primary);
  transition: all var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
  box-shadow: 0 4px 12px var(--accent-glow);
}

.module-action-btn:hover {
  background: var(--accent-hover);
  box-shadow: 0 6px 20px rgba(255, 209, 42, 0.35);
  transform: translateY(-1px);
}

.module-action-btn.is-disabled {
  background: var(--bg-surface-2);
  color: var(--text-muted);
  cursor: not-allowed;
  box-shadow: none;
  transform: none;
}

.module-items {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.module-item {
  padding: 10px 16px;
  background: var(--bg-surface);
  border-radius: 12px;
  border: none;
  font-size: 13px;
  color: var(--text-secondary);
  transition: all 0.2s;
  position: relative;
  padding-left: 28px;
}

.module-item::before {
  content: '';
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.4;
  transition: opacity 0.2s;
}

.module-item:hover {
  background: var(--accent-light);
  color: var(--text-primary);
}

.module-item:hover::before {
  opacity: 1;
}

/* ======== Course Management V2 ======== */
.courses-page {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.courses-header {
  margin-bottom: 16px;
}

.courses-header .courses-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.manage-container {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 16px;
  height: calc(100vh - 136px);
  min-width: 0;
}

/* -- Left Sidebar -- */
.course-sidebar {
  border-radius: 20px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
  flex-shrink: 0;
}

.sidebar-top h3 {
  font-size: 15px;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.course-count {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.search-filter-row {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
  flex-shrink: 0;
}

.search-filter-row .search-input {
  flex: 1;
}

.search-filter-row .filter-select {
  width: 90px;
  flex-shrink: 0;
}

.add-course-btn {
  width: 100%;
  padding: 10px 0;
  background: var(--accent);
  color: var(--text-primary);
  border: none;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 10px;
  flex-shrink: 0;
  letter-spacing: 0.01em;
}

.add-course-btn:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 16px var(--accent-glow);
  transform: translateY(-1px);
}

.course-list-scroll {
  flex: 1;
  overflow-y: auto;
  margin: 0 -6px;
  padding: 0 2px;
}

.course-card-v2 {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 2px;
}

.course-card-v2:hover {
  background: var(--bg-surface);
}

.course-card-v2.active {
  background: var(--accent-light);
  box-shadow: inset 3px 0 0 0 var(--accent);
}

.course-card-cover {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: var(--bg-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.course-card-v2.active .course-card-cover {
  background: rgba(255, 209, 42, 0.12);
}

.course-card-info {
  flex: 1;
  min-width: 0;
}

.course-card-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.course-card-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  min-width: 0;
}

/* -- Status Badges -- */
.status-badge {
  flex-shrink: 0;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.status-badge-lg {
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  white-space: nowrap;
}

.badge-published {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
}

.badge-draft {
  background: rgba(156, 163, 175, 0.15);
  color: #6b7280;
}

.badge-taken-down {
  background: rgba(239, 68, 68, 0.08);
  color: #ef4444;
}

.badge-pending-review {
  background: rgba(245, 158, 11, 0.12);
  color: #d97706;
}

.badge-rejected {
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
}

.loading-center {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 30px 0;
}

.empty-hint {
  text-align: center;
  padding: 20px 0;
  color: var(--text-muted);
  font-size: 13px;
}

/* -- Right Content -- */
.course-content {
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  min-width: 0;
}

/* -- Detail Card -- */
.detail-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 22px 26px;
  box-shadow: var(--shadow-sm);
  border: none;
}

.detail-card-main {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.detail-card-left {
  flex: 1;
  min-width: 280px;
}

.detail-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.detail-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin: 0 0 12px;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag-badge {
  display: inline-block;
  background: var(--bg-surface);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 100px;
}

.biz-stats {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border-radius: 14px;
  padding: 14px 8px;
  min-width: 0;
  flex-shrink: 0;
}

.biz-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  padding: 0 12px;
  min-width: 0;
}

.biz-stat-value {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

.biz-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
  white-space: nowrap;
}

.biz-stat-divider {
  width: 1px;
  height: 28px;
  background: rgba(0, 0, 0, 0.06);
  flex-shrink: 0;
}

/* -- Detail Actions -- */
.detail-card-actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
  align-items: stretch;
}

.action-btn-outline {
  padding: 8px 18px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 10px;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
  text-align: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.action-btn-outline:hover {
  border-color: var(--accent);
  background: var(--accent-light);
}

.action-btn-danger-text {
  padding: 6px 18px;
  font-size: 12px;
  font-weight: 500;
  border: none;
  background: transparent;
  color: #ef4444;
  cursor: pointer;
  opacity: 0.45;
  transition: opacity 0.2s;
  text-align: center;
  margin-top: 4px;
}

.action-btn-danger-text:hover {
  opacity: 1;
}

/* -- Chapter Tree -- */
.chapter-tree-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.chapter-tree-header h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
}

.chapter-empty {
  text-align: center;
  padding: 36px 0;
}

.chapter-empty p {
  color: var(--text-muted);
  font-size: 13px;
  margin: 0;
}

.chapter-tree {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.chapter-accordion {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.chapter-acc-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-surface);
  cursor: pointer;
  transition: background 0.15s;
  gap: 8px;
  user-select: none;
}

.chapter-acc-header:hover {
  background: var(--bg-surface-2);
}

.chapter-acc-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.drag-handle {
  color: var(--text-muted);
  font-size: 12px;
  cursor: grab;
  user-select: none;
  letter-spacing: 1px;
  flex-shrink: 0;
  opacity: 0.35;
  transition: opacity 0.15s;
  font-weight: 700;
}

.chapter-acc-header:hover .drag-handle,
.lesson-acc-item:hover .drag-handle {
  opacity: 0.7;
}

.drag-handle-sm {
  font-size: 10px;
}

.chapter-acc-arrow {
  transition: transform 0.2s ease;
  color: var(--text-muted);
  flex-shrink: 0;
}

.chapter-acc-arrow.expanded {
  transform: rotate(90deg);
}

.chapter-acc-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chapter-lesson-count {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
  font-weight: 500;
}

.chapter-acc-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  padding: 0;
}

.icon-btn:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.icon-btn.icon-btn-danger:hover {
  background: rgba(239, 68, 68, 0.06);
  color: #ef4444;
}

/* -- Chapter Accordion Body (Lessons) -- */
.chapter-acc-body {
  background: var(--bg-card);
  padding: 2px 6px 6px;
}

.lesson-acc-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px 8px 22px;
  border-radius: 10px;
  transition: background 0.12s;
  gap: 8px;
}

.lesson-acc-item:hover {
  background: var(--bg-surface);
}

.lesson-acc-left {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.lesson-type-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
}

.lesson-acc-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.lesson-acc-right {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.lesson-tag {
  font-size: 10px;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 100px;
  white-space: nowrap;
}

.lesson-tag-free {
  background: rgba(99, 102, 241, 0.1);
  color: #6366f1;
}

.lesson-tag-success {
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
}

.lesson-tag-warn {
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
}

.lesson-hover-actions {
  display: flex;
  gap: 2px;
  opacity: 0;
  transition: opacity 0.12s;
}

.lesson-acc-item:hover .lesson-hover-actions {
  opacity: 1;
}

.icon-btn-sm {
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.12s;
  padding: 0;
}

.icon-btn-sm:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-primary);
}

.icon-btn-sm.icon-btn-danger:hover {
  background: rgba(239, 68, 68, 0.06);
  color: #ef4444;
}

.lesson-empty {
  text-align: center;
  padding: 14px 0;
  color: var(--text-muted);
  font-size: 12px;
}

.lesson-empty b {
  color: var(--text-secondary);
}

/* ======== Question Management ======== */
.question-container {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  height: calc(100vh - 136px);
  min-width: 0;
}

.question-sidebar {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow-y: auto;
  box-shadow: var(--shadow);
}

.question-sidebar h3 {
  font-size: 16px;
  font-weight: 700;
}

.nav-sector {
  background: var(--bg-surface);
  border: none;
  border-radius: 14px;
  overflow: hidden;
}

.nav-sector-row {
  padding: 12px 16px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 13px;
  transition: background 0.2s;
}

.nav-sector-row:hover {
  background: var(--accent-light);
}

.nav-subject {
  margin: 4px 8px;
  padding: 10px 14px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
  font-size: 12px;
  transition: all 0.2s;
}

.nav-subject:hover {
  background: var(--accent-light);
}

.nav-subject.active {
  background: var(--accent-light);
  color: var(--accent-hover);
  font-weight: 600;
}

.nav-type {
  margin: 2px 8px 2px 24px;
  padding: 8px 14px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-hover);
  transition: all 0.2s;
}

.nav-type:hover {
  background: var(--accent-light);
}

.nav-type.active {
  background: rgba(255, 209, 42, 0.15);
  color: var(--accent-hover);
}

.question-list-item {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  cursor: pointer;
  transition: all 0.15s;
}

.question-list-item:last-child {
  border-bottom: none;
}

.question-list-item:hover {
  background: var(--accent-light);
}

.question-content {
  display: flex;
  flex-direction: column;
  gap: 20px;
  overflow-y: auto;
  min-width: 0;
}

.question-detail-card {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
}

.question-detail-card h2 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.7;
  margin-bottom: 14px;
}

.option-item {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border: none;
  border-radius: 12px;
  margin-bottom: 8px;
  font-size: 13px;
}

.option-label {
  font-weight: 700;
  color: var(--accent-hover);
  flex-shrink: 0;
}

.answer-row {
  padding: 14px 0;
  font-size: 13px;
  color: var(--text-secondary);
  border-top: 1px dashed rgba(0, 0, 0, 0.06);
  margin-top: 10px;
}

/* ======== Teacher Dashboard ======== */
.teacher-hero {
  background: var(--bg-dark-card);
  border: none;
  border-radius: var(--radius-lg);
  padding: 36px 40px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-xl);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.teacher-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(255, 209, 42, 0.10) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.teacher-hero .chip {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  background: rgba(255, 209, 42, 0.12);
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 10px;
  font-weight: 600;
}

.teacher-hero h1 {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 6px;
  color: #FFFFFF;
  letter-spacing: -0.02em;
}

.teacher-hero .meta {
  color: rgba(255, 255, 255, 0.5);
  font-size: 14px;
}

.teacher-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.teacher-panel {
  background: var(--bg-card);
  border: none;
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  box-shadow: var(--shadow);
}

.teacher-panel h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
}

.teacher-panel .sub {
  color: var(--text-secondary);
  font-size: 12px;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.overview-item {
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 18px;
  border: none;
}

.overview-item .value {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.overview-item .label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.insight-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.insight-item {
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  padding: 18px;
  border: none;
  text-align: center;
}

.insight-item .value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.insight-item .label {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 6px;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background: var(--bg-surface-2);
  border-radius: var(--radius-pill);
  overflow: hidden;
  margin-top: 6px;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent) 0%, var(--accent-2) 100%);
  border-radius: var(--radius-pill);
  transition: width 0.6s ease;
}

/* ---- Teacher Loading Skeleton ---- */
.teacher-loading {
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.skeleton-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 32px !important;
}

.skeleton-line {
  height: 16px;
  border-radius: 8px;
  background: linear-gradient(90deg, var(--bg-surface) 25%, var(--bg-surface-2) 50%, var(--bg-surface) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
}

.skeleton-line.w40 { width: 40%; }
.skeleton-line.w60 { width: 60%; }
.skeleton-line.w80 { width: 80%; }

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.teacher-error-state {
  margin-top: 28px;
}

/* ---- Teacher Card Items ---- */
.live-card,
.course-card-item,
.task-card-item {
  padding: 16px;
  border-radius: 14px;
  background: var(--bg-surface);
  border: none;
  margin-bottom: 10px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.live-card:hover,
.course-card-item:hover,
.task-card-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.panel-empty {
  color: var(--text-muted);
  font-size: 13px;
  text-align: center;
  padding: 24px 0;
}

/* ---- Teacher Overview Alert ---- */
.overview-item.has-alert {
  outline: 2px solid rgba(245, 158, 11, 0.3);
  background: rgba(245, 158, 11, 0.06);
}

.overview-item.has-alert .value {
  color: var(--warning);
}

/* ---- Teacher Insights 5-Column Grid ---- */
.insight-grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

@media (max-width: 1200px) {
  .insight-grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .insight-grid-5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Teacher Insight Progress Bar ---- */
.insight-progress-section {
  margin-top: 4px;
}

.insight-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.insight-progress-pct {
  font-weight: 700;
  color: var(--accent-hover);
}

/* ---- Teacher Score Distribution ---- */
.score-distribution {
  margin-top: 10px;
  padding: 20px;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  border: none;
}

.dist-bars {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dist-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dist-label {
  font-size: 12px;
  color: var(--text-secondary);
  width: 100px;
  flex-shrink: 0;
  text-align: right;
}

.dist-bar-track {
  flex: 1;
  height: 8px;
  background: var(--bg-surface-2);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.dist-bar-fill {
  height: 100%;
  border-radius: var(--radius-pill);
  transition: width 0.6s ease;
  min-width: 2px;
}

.dist-count {
  font-size: 12px;
  color: var(--text-muted);
  width: 50px;
  flex-shrink: 0;
}

/* ---- Teacher Live Result Dialog ---- */
.live-result-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.live-result-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.live-result-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}

.live-result-value {
  font-size: 14px;
  color: var(--text-primary);
}

.live-result-tip {
  margin-top: 6px;
  padding: 14px 18px;
  background: var(--accent-light);
  border: none;
  border-radius: 14px;
  font-size: 12px;
  color: var(--accent-hover);
  line-height: 1.7;
}

/* ---- Teacher Report Dialog ---- */
.teacher-report-result {
  margin-top: 20px;
  padding: 24px;
  background: var(--bg-surface);
  border: none;
  border-radius: var(--radius-sm);
}

.teacher-report-result h4 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

.teacher-report-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 18px;
}

.teacher-report-stat {
  background: var(--bg-card);
  border: none;
  border-radius: 14px;
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.teacher-report-stat-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
}

.teacher-report-stat-label {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.teacher-report-download {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: var(--accent-light);
  border: none;
  border-radius: 14px;
}

.teacher-report-download .el-link {
  font-weight: 600;
}

.teacher-report-hint {
  font-size: 12px;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .teacher-report-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---- Teacher Clickable Task Card ---- */
.task-card-item.is-clickable {
  cursor: pointer;
}

.task-card-item.is-clickable:hover {
  background: var(--accent-light);
}

/* ---- Teacher Grading Dialog ---- */
.grading-dialog .el-dialog__body {
  padding: 0 !important;
  height: calc(100vh - 55px);
  overflow: hidden;
}

.grading-loading,
.grading-error {
  padding: 40px 24px;
}

.grading-body {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.grading-info-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding: 18px 28px;
  background: var(--bg-surface);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  flex-shrink: 0;
}

.grading-info-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

.grading-info-label {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
}

.grading-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  flex: 1;
  min-height: 0;
}

.grading-questions {
  padding: 24px 28px;
  overflow-y: auto;
}

.grading-question-card {
  background: var(--bg-surface);
  border: none;
  border-radius: var(--radius-sm);
  padding: 24px;
  margin-bottom: 18px;
}

.grading-q-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.grading-q-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-hover);
}

.grading-q-score {
  margin-left: auto;
  font-size: 12px;
  color: var(--text-muted);
}

.grading-q-title {
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.grading-q-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 14px;
}

.grading-q-option {
  display: flex;
  gap: 10px;
  padding: 10px 14px;
  background: var(--bg-card);
  border: none;
  border-radius: 12px;
  font-size: 13px;
  box-shadow: var(--shadow-sm);
}

.grading-q-option-label {
  font-weight: 700;
  color: var(--accent-hover);
  flex-shrink: 0;
}

.grading-student-answer {
  margin-top: 14px;
  padding: 14px 18px;
  background: rgba(245, 158, 11, 0.06);
  border: none;
  border-radius: 14px;
}

.grading-sa-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--warning);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.grading-sa-content {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-break: break-word;
}

.grading-ref-answer {
  margin-top: 14px;
  padding: 14px 18px;
  background: rgba(34, 197, 94, 0.06);
  border: none;
  border-radius: 14px;
}

.grading-ra-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--success);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 6px;
}

.grading-ra-content {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-secondary);
  white-space: pre-wrap;
}

.grading-ra-analysis {
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(34, 197, 94, 0.2);
  font-size: 12px;
  color: var(--text-muted);
  line-height: 1.7;
}

.grading-form-panel {
  padding: 24px 28px;
  border-left: 1px solid rgba(0, 0, 0, 0.04);
  background: var(--bg-card);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.grading-form-panel h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 18px;
}

.grading-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}

@media (max-width: 900px) {
  .grading-layout {
    grid-template-columns: 1fr;
  }

  .grading-form-panel {
    border-left: none;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
  }
}

/* ======== Content Card (used by users/orders/moderation pages) ======== */
.content-card {
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  overflow-x: auto;
  min-width: 0;
  border: none;
}

.content-card table {
  min-width: 600px;
}

/* ======== General page-level overflow containment ======== */
.users-page,
.orders-page,
.moderation-page {
  min-width: 0;
  overflow-x: hidden;
}

.summary-card {
  flex: 1;
  min-width: 0;
}

.summary-card > div {
  min-width: 120px;
}

/* Responsive: summary cards wrap on narrow screens */
@media (max-width: 900px) {
  .orders-page > div:nth-child(2),
  .moderation-page > div:nth-child(2) {
    flex-wrap: wrap;
  }
}

/* ======== Common Card / Empty ======== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 14px;
  text-align: center;
  border: none;
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow-inset);
}

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 14px;
  opacity: 0.4;
}

/* ======== Element Plus Overrides - Soft UI ======== */

.el-dialog {
  background: var(--bg-card) !important;
  border: none !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-xl) !important;
}

.el-dialog__header {
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  padding: 20px 28px !important;
}

.el-dialog__title {
  color: var(--text-primary) !important;
  font-weight: 700;
  font-size: 16px;
}

.el-dialog__body {
  padding: 28px !important;
  color: var(--text-primary) !important;
}

.el-dialog__footer {
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  padding: 16px 28px !important;
}

.el-form-item__label {
  color: var(--text-secondary) !important;
}

.el-input__wrapper,
.el-textarea__inner {
  background: var(--bg-surface) !important;
  border-color: transparent !important;
  color: var(--text-primary) !important;
  box-shadow: var(--shadow-inset) !important;
  border-radius: var(--radius-sm) !important;
}

.el-input__wrapper:hover,
.el-textarea__inner:hover {
  border-color: transparent !important;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.04) !important;
}

.el-input__wrapper.is-focus,
.el-textarea__inner:focus {
  border-color: transparent !important;
  box-shadow: 0 0 0 2px var(--accent-glow) !important;
}

.el-input__inner {
  color: var(--text-primary) !important;
}

.el-select .el-input__wrapper {
  background: var(--bg-surface) !important;
}

.el-select-dropdown {
  background: var(--bg-card) !important;
  border: none !important;
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-xl) !important;
}

.el-select-dropdown__item {
  color: var(--text-primary) !important;
  border-radius: 10px;
  margin: 2px 6px;
}

.el-select-dropdown__item.hover,
.el-select-dropdown__item:hover {
  background: var(--accent-light) !important;
}

.el-tag {
  border-radius: var(--radius-pill);
  border: none;
}

.el-button--primary {
  --el-button-bg-color: #FFD12A;
  --el-button-border-color: #FFD12A;
  --el-button-hover-bg-color: #F0C020;
  --el-button-hover-border-color: #F0C020;
  --el-button-text-color: #2A2C32;
  border-radius: 14px;
  font-weight: 600;
  border: none !important;
}

.el-button--danger {
  --el-button-bg-color: #EF4444;
  --el-button-border-color: #EF4444;
  border-radius: 14px;
  border: none !important;
}

.el-button--success {
  --el-button-bg-color: #22C55E;
  --el-button-border-color: #22C55E;
  border-radius: 14px;
  border: none !important;
}

.el-button--warning {
  --el-button-bg-color: #F59E0B;
  --el-button-border-color: #F59E0B;
  --el-button-text-color: #2A2C32;
  border-radius: 14px;
  border: none !important;
}

.el-button {
  border-radius: 14px;
}

.el-button--default {
  border: none !important;
  background: var(--bg-card) !important;
  box-shadow: var(--shadow-sm);
}

.el-button--default:hover {
  border-color: var(--accent) !important;
  color: var(--accent-hover) !important;
  background: var(--accent-light) !important;
}

.el-switch.is-checked .el-switch__core {
  background-color: var(--accent) !important;
  border-color: var(--accent) !important;
}

.el-checkbox__input.is-checked .el-checkbox__inner {
  background-color: var(--accent);
  border-color: var(--accent);
}

.el-tabs__item {
  color: var(--text-secondary) !important;
  font-weight: 500;
}

.el-tabs__item.is-active {
  color: var(--text-primary) !important;
  font-weight: 700;
}

.el-tabs__active-bar {
  background-color: var(--accent) !important;
  height: 3px !important;
  border-radius: 2px;
}

.el-message-box {
  background: var(--bg-card) !important;
  border: none !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-xl) !important;
}

.el-message-box__title {
  color: var(--text-primary) !important;
}

.el-message-box__message {
  color: var(--text-secondary) !important;
}

.el-popper {
  border-radius: var(--radius-sm) !important;
  border: none !important;
  box-shadow: var(--shadow-lg) !important;
}

.el-dropdown-menu {
  border-radius: var(--radius-sm) !important;
  box-shadow: var(--shadow-xl) !important;
  border: none !important;
  padding: 6px !important;
}

.el-dropdown-menu__item {
  border-radius: 10px !important;
  padding: 8px 14px !important;
}

.el-dropdown-menu__item:hover {
  background: var(--accent-light) !important;
  color: var(--text-primary) !important;
}

/* ---- Theme Color Overrides ---- */
.el-radio-button__original-radio:checked + .el-radio-button__inner {
  background-color: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #2A2C32 !important;
  box-shadow: -1px 0 0 0 var(--accent) !important;
  font-weight: 600;
}

.el-radio-button__inner:hover {
  color: var(--accent-hover) !important;
}

.el-radio-button__inner {
  border-color: rgba(0, 0, 0, 0.08) !important;
}

.el-link--primary {
  --el-link-text-color: var(--accent-hover) !important;
  color: var(--accent-hover) !important;
}

.el-link--primary:hover {
  color: var(--accent) !important;
}

.el-link--primary .el-link__inner {
  color: inherit !important;
}

.el-button--primary.is-text,
.el-button--primary.is-link {
  color: var(--accent-hover) !important;
}

.el-button--primary.is-text:hover,
.el-button--primary.is-link:hover {
  color: var(--accent) !important;
  background: var(--accent-light) !important;
}

.el-pagination .el-pager li.is-active {
  background: var(--accent) !important;
  color: #2A2C32 !important;
  border-radius: 10px;
}

.el-pagination .el-pager li {
  border-radius: 10px;
}

.el-checkbox__input.is-checked + .el-checkbox__label {
  color: var(--accent-hover) !important;
}

.el-radio__input.is-checked .el-radio__inner {
  background-color: var(--accent) !important;
  border-color: var(--accent) !important;
}

.el-radio__input.is-checked + .el-radio__label {
  color: var(--accent-hover) !important;
}

.el-loading-spinner .path {
  stroke: var(--accent) !important;
}

.el-tag--info {
  --el-tag-bg-color: var(--bg-surface);
  --el-tag-border-color: transparent;
  --el-tag-text-color: var(--text-secondary);
}

.el-date-picker .el-date-table td.current:not(.disabled) .el-date-table-cell__text {
  background-color: var(--accent) !important;
  color: #2A2C32 !important;
}

.el-input-number__decrease:hover,
.el-input-number__increase:hover {
  color: var(--accent) !important;
}

.el-select-dropdown__item.is-selected {
  color: var(--accent-hover) !important;
  font-weight: 700;
}

.el-table {
  --el-table-border-color: rgba(174, 164, 140, 0.08);
  --el-table-header-bg-color: var(--bg-surface);
  --el-table-bg-color: var(--bg-card);
  --el-table-tr-bg-color: var(--bg-card);
  border-radius: var(--radius-sm);
  overflow: hidden;
  width: 100% !important;
}

.el-table th.el-table__cell {
  background: var(--bg-surface) !important;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: none !important;
}

.el-table td.el-table__cell {
  border-bottom-color: rgba(200, 180, 140, 0.08) !important;
}

.el-table__row:hover > td.el-table__cell {
  background: var(--accent-light) !important;
}

/* ======== Responsive ======== */
@media (max-width: 1200px) {
  .module-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .teacher-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .manage-container,
  .question-container {
    grid-template-columns: 1fr;
    height: auto;
  }

  .stats-mini-grid {
    grid-template-columns: 1fr;
  }

  .module-grid {
    grid-template-columns: 1fr;
  }
}

/* ======== Scrollbar ======== */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(180, 160, 120, 0.15);
  border-radius: 100px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(180, 160, 120, 0.30);
}

/* ======== Login Page ======== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-global-gradient);
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 560px;
  height: 560px;
  background: radial-gradient(circle, rgba(255, 209, 42, 0.08) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.login-page::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: -5%;
  width: 440px;
  height: 440px;
  background: radial-gradient(circle, rgba(232, 115, 74, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 48px 40px 40px;
  box-shadow: var(--shadow-xl);
  border: none;
  position: relative;
  z-index: 1;
}

.login-logo {
  text-align: center;
  margin-bottom: 40px;
}

.login-logo-icon {
  width: 72px;
  height: 72px;
  object-fit: contain;
  border-radius: 14px;
  display: block;
  margin: 0 auto 16px;
}

.login-logo h1 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.02em;
}

.login-logo p {
  font-size: 13px;
  color: var(--text-muted);
  margin: 8px 0 0;
}

.login-form .el-form-item__label {
  color: var(--text-secondary) !important;
  font-size: 13px;
}

.login-btn {
  width: 100%;
  margin-top: 10px;
  height: 48px;
  font-size: 15px;
  font-weight: 600;
  border-radius: var(--radius-sm) !important;
}

.login-footer {
  margin-top: 32px;
  text-align: center;
}

.cloud-status-login {
  font-size: 12px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.cloud-status-login::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--danger);
}

.cloud-status-login.online::before {
  background: var(--success);
}

.dev-hint {
  margin-top: 16px;
  font-size: 11px;
  color: var(--text-muted);
  line-height: 1.7;
}

.dev-hint b {
  color: var(--text-secondary);
  font-weight: 500;
}

/* ======== Header User Button ======== */
.header-user-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  transition: background 0.2s;
}

.header-user-btn:hover {
  background: var(--bg-surface);
}

.header-user-name {
  font-size: 13px;
  color: var(--text-secondary);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ======== Analytics Page ======== */
.analytics-page {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.an-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.an-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin: 0;
}

.an-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin: 4px 0 0;
}

.an-range-group {
  display: flex;
  background: var(--bg-card);
  border-radius: var(--radius-pill);
  padding: 4px;
  box-shadow: var(--shadow-inset);
  border: none;
}

.an-range-btn {
  font-size: 13px;
  font-weight: 600;
  padding: 7px 20px;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  background: transparent;
  color: var(--text-muted);
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
}

.an-range-btn:hover {
  color: var(--text-primary);
}

.an-range-btn.active {
  background: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 2px 10px var(--accent-glow);
}

/* KPI Cards */
.an-kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.an-kpi-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 26px 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 6px;
  transition: transform 0.25s cubic-bezier(.22, .61, .36, 1), box-shadow 0.25s;
  border: none;
}

.an-kpi-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.an-kpi-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}

.an-kpi-value {
  font-size: 34px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.an-kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 4px;
}

.an-kpi-trend.is-up {
  color: var(--success);
}

.an-kpi-trend.is-down {
  color: var(--danger);
}

.an-trend-arrow {
  width: 12px;
  height: 12px;
  flex-shrink: 0;
}

/* Charts Layout */
.an-charts-row {
  display: flex;
  gap: 24px;
}

.an-chart-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  border: none;
}

.an-chart-wide {
  flex: 3;
  min-width: 0;
}

.an-chart-narrow {
  flex: 2;
  min-width: 0;
}

.an-chart-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 0 16px;
  letter-spacing: -0.01em;
}

.an-chart-box {
  width: 100%;
  flex: 1;
  min-height: 0;
}

/* Analytics Responsive */
@media (max-width: 1100px) {
  .an-kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .an-charts-row {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .an-kpi-grid {
    grid-template-columns: 1fr;
  }
}

/* ======== Global Transitions ======== */
.el-message {
  border-radius: 14px !important;
  border: none !important;
  box-shadow: var(--shadow-lg) !important;
}

.el-notification {
  border-radius: var(--radius-sm) !important;
  border: none !important;
  box-shadow: var(--shadow-xl) !important;
}

.el-overlay-dialog .el-dialog {
  margin-top: 8vh !important;
}

.el-tooltip__popper {
  border-radius: 10px !important;
}

/* ======== Capsule Tab Group ======== */
.custom-capsule-tabs {
  display: inline-flex;
  align-items: center;
  background-color: var(--bg-surface);
  border-radius: 24px;
  padding: 4px;
  gap: 4px;
  box-shadow: var(--shadow-inset);
}

.capsule-tab-item {
  padding: 6px 16px;
  font-size: 14px;
  color: var(--text-secondary);
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
  user-select: none;
  white-space: nowrap;
}

.capsule-tab-item:hover {
  color: var(--text-primary);
}

.capsule-tab-item.is-active {
  background-color: var(--accent);
  color: var(--text-primary);
  font-weight: bold;
  box-shadow: var(--shadow-sm);
}

/* ======== 数据看板 BI 报表 ======== */
.analytics-page {
  --an-gap: 2rem;
}

.funnel-wrap .funnel-tier {
  transition: transform 0.2s ease;
}

.funnel-wrap .funnel-tier:hover {
  transform: scale(1.02);
}

/* ======================================== */
/* ======== 讨论区模块样式 ======== */
/* ======================================== */

/* 进入讨论区按钮（课程标题右侧） */
.discussion-enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.discussion-enter-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-light);
}

/* 讨论区头部栏 */
.discussion-header {
  display: flex;
  align-items: center;
  gap: 10px;
}
.discussion-header-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* 返回按钮 */
.discussion-back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.discussion-back-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-light);
}

/* 讨论区课时进入按钮 */
.discussion-lesson-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.discussion-lesson-enter-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  opacity: 0.7;
}
.discussion-lesson-enter-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-light);
  opacity: 1;
}

/* 讨论区顶部栏 */
.discussion-top-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-strong);
  background: var(--bg-card);
  flex-shrink: 0;
}
.discussion-top-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.discussion-sort-tabs {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}
.discussion-sort-btn {
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.discussion-sort-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
}
.discussion-sort-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--text-primary);
  font-weight: 600;
}

/* 评论列表滚动区域 */
.discussion-comment-list {
  flex: 1;
  overflow-y: auto;
  padding: 12px 18px;
}

/* 评论卡片 */
.comment-card {
  padding: 14px 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.comment-card:last-child {
  border-bottom: none;
}

/* 评论主体 */
.comment-main {
  display: flex;
  gap: 10px;
}

/* 头像 */
.comment-avatar-wrap {
  flex-shrink: 0;
}
.comment-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}
.comment-avatar-sm {
  width: 28px;
  height: 28px;
}
.comment-avatar-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-2);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 600;
}
.reply-avatar-wrap {
  padding-top: 2px;
}

/* 评论内容区 */
.comment-body {
  flex: 1;
  min-width: 0;
}
.comment-header-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 4px;
  flex-wrap: wrap;
}
.comment-nickname {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}
.comment-role-tag {
  display: inline-flex;
  align-items: center;
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 10px;
  font-weight: 600;
  line-height: 1.6;
}
.comment-role-tag.tag-teacher {
  background: var(--accent-light);
  color: #b8860b;
  border: 1px solid rgba(255, 209, 42, 0.3);
}
.comment-role-tag.tag-pinned {
  background: rgba(239, 68, 68, 0.08);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}
.comment-reply-indicator {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  color: var(--text-muted);
  font-size: 12px;
}
.comment-content {
  font-size: 13px;
  color: var(--text-primary);
  line-height: 1.6;
  word-break: break-word;
  margin-bottom: 6px;
}
.comment-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.comment-time {
  font-size: 11px;
  color: var(--text-muted);
  flex-shrink: 0;
}
.comment-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}
.comment-action-btn {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 3px 8px;
  border-radius: 6px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 11px;
  cursor: pointer;
  transition: var(--transition);
}
.comment-action-btn:hover {
  background: var(--bg-surface);
  color: var(--text-secondary);
}
.comment-action-btn.liked {
  color: var(--accent-2);
}
.comment-action-btn.liked:hover {
  background: rgba(232, 115, 74, 0.08);
}
.comment-action-danger:hover {
  color: var(--danger);
  background: rgba(239, 68, 68, 0.06);
}
.comment-action-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 回复展开按钮 */
.comment-reply-toggle {
  margin-top: 6px;
}
.comment-reply-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 0;
  border: none;
  background: transparent;
  color: #2563eb;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.comment-reply-toggle-btn:hover {
  color: #1d4ed8;
}

/* 回复列表 */
.reply-list {
  margin-top: 10px;
  padding: 10px 0 6px 0;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
}
.reply-item {
  padding: 8px 0;
}

/* 加载更多按钮 */
.load-more-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 8px 16px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.load-more-btn:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background: var(--accent-light);
}
.load-more-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 评论输入区域 */
.comment-input-area {
  padding: 12px 18px;
  border-top: 1px solid var(--border-strong);
  background: var(--bg-card);
  flex-shrink: 0;
}
.comment-reply-hint {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 10px;
  margin-bottom: 8px;
  border-radius: 8px;
  background: var(--accent-light);
  font-size: 12px;
  color: #b8860b;
}
.comment-reply-cancel {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 50%;
  transition: var(--transition);
}
.comment-reply-cancel:hover {
  background: rgba(0, 0, 0, 0.06);
  color: var(--text-primary);
}
.comment-input-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}
.comment-input-row .el-textarea {
  flex: 1;
}
.comment-input-row .el-textarea__inner {
  border-radius: 12px !important;
  padding: 8px 12px !important;
  font-size: 13px !important;
  background: var(--bg-surface) !important;
  border: 1px solid var(--border-strong) !important;
}
.comment-input-row .el-textarea__inner:focus {
  border-color: var(--accent) !important;
  box-shadow: 0 0 0 2px var(--accent-light) !important;
}
.comment-send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  flex-shrink: 0;
}
.comment-send-btn:hover {
  background: var(--accent-hover);
  transform: scale(1.05);
}
.comment-send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ======== Role Permissions Page ======== */
.role-permissions-page {
  min-width: 0;
  overflow-x: hidden;
}

.rp-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.rp-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0;
  letter-spacing: -0.01em;
}

.rp-subtitle {
  font-size: 13px;
  color: var(--text-muted);
  margin: 4px 0 0;
}

/* Loading skeleton grid */
.rp-loading-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* Cards grid */
.rp-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

/* Individual card */
.rp-card {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 0;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: box-shadow 0.25s cubic-bezier(.22, .61, .36, 1);
  border: none;
}

.rp-card:hover {
  box-shadow: var(--shadow-lg);
}

.rp-card-skeleton {
  padding: 28px;
  min-height: 200px;
}

/* Card header */
.rp-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.rp-card-header-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.rp-card-role-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.2s;
}

.rp-card:hover .rp-card-role-icon {
  transform: scale(1.05);
}

.rp-role-super_admin {
  background: rgba(239, 68, 68, 0.08);
  color: #dc2626;
}

.rp-role-operations {
  background: rgba(245, 158, 11, 0.08);
  color: #d97706;
}

.rp-role-teacher {
  background: rgba(99, 102, 241, 0.08);
  color: #6366f1;
}

.rp-role-student {
  background: rgba(34, 197, 94, 0.08);
  color: #16a34a;
}

.rp-card-role-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
}

.rp-card-role-desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Super admin notice */
.rp-card-super {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(239, 68, 68, 0.03) 100%);
}

.rp-super-notice {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 32px 28px;
  margin: 0;
}

.rp-super-notice-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(239, 68, 68, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: #dc2626;
}

.rp-super-notice-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  font-weight: 500;
}

/* Search bar */
.rp-search-bar {
  padding: 14px 20px 0;
}

.rp-search-bar .el-input__wrapper {
  border-radius: 12px !important;
}

/* Modules area */
.rp-modules-area {
  padding: 10px 20px;
  flex: 1;
  overflow-y: auto;
  max-height: 440px;
}

/* Module block */
.rp-module {
  margin-bottom: 6px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(0, 0, 0, 0.03);
}

.rp-module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-surface);
  cursor: pointer;
  transition: background 0.15s;
  user-select: none;
}

.rp-module-header:hover {
  background: var(--bg-surface-2);
}

.rp-module-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rp-module-arrow {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: transform 0.25s cubic-bezier(.22, .61, .36, 1);
  flex-shrink: 0;
}

.rp-module-arrow.is-open {
  transform: rotate(90deg);
}

.rp-module-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.rp-module-count {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  padding: 1px 8px;
  background: var(--bg-card);
  border-radius: var(--radius-pill);
}

/* Module body (permission items) */
.rp-module-body {
  background: var(--bg-card);
  padding: 4px 6px;
}

.rp-perm-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 8px 38px;
  border-radius: 8px;
  transition: background 0.12s;
}

.rp-perm-item:hover {
  background: var(--bg-surface);
}

.rp-perm-item-left {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.rp-perm-name {
  font-size: 13px;
  color: var(--text-primary);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rp-perm-info-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  cursor: help;
  flex-shrink: 0;
  opacity: 0.5;
  transition: opacity 0.15s, color 0.15s;
}

.rp-perm-item:hover .rp-perm-info-icon {
  opacity: 1;
  color: var(--text-secondary);
}

/* Slide transition for module body */
.rp-slide-enter-active,
.rp-slide-leave-active {
  transition: all 0.25s cubic-bezier(.22, .61, .36, 1);
  max-height: 800px;
  opacity: 1;
  overflow: hidden;
}

.rp-slide-enter-from,
.rp-slide-leave-to {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  padding-top: 0;
  padding-bottom: 0;
}

/* Empty search */
.rp-empty-search {
  text-align: center;
  padding: 28px 0;
  font-size: 13px;
  color: var(--text-muted);
}

/* Card footer */
.rp-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  background: var(--bg-surface);
  margin-top: auto;
}

.rp-card-footer-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.rp-unsaved-hint {
  font-size: 12px;
  color: var(--warning);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.rp-unsaved-hint::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warning);
  flex-shrink: 0;
  animation: pulse 1.5s infinite;
}

/* Checkbox in module header - compact */
.rp-module-header .el-checkbox {
  margin-right: 0;
}

.rp-module-header .el-checkbox__label {
  display: none;
}

/* Role permissions responsive */
@media (max-width: 1100px) {
  .rp-cards-grid,
  .rp-loading-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .rp-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .rp-card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}

/* ======================================================
   全局设置 (Global Settings) — Soft UI / Neumorphism
   ====================================================== */

.global-settings-page {
  --gs-page-bg: var(--bg-global);
  --gs-card-bg: var(--bg-card);
  --gs-surface: var(--bg-surface);
  --gs-surface-2: var(--bg-surface-2);
  --gs-accent: var(--accent);
  --gs-accent-hover: var(--accent-hover);
  --gs-accent-light: var(--accent-light);
  --gs-accent-glow: var(--accent-glow);
  --gs-text-1: var(--text-primary);
  --gs-text-2: var(--text-secondary);
  --gs-text-3: var(--text-muted);
  --gs-danger: var(--danger);
  --gs-success: var(--success);
  --gs-warning: var(--warning);
  --gs-radius: var(--radius);
  --gs-radius-sm: var(--radius-sm);
  --gs-radius-pill: var(--radius-pill);
  --gs-shadow: var(--shadow);
  --gs-shadow-sm: var(--shadow-sm);
  --gs-shadow-inset: var(--shadow-inset);
  --gs-transition: var(--transition);
}

.gs-tab-body {
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: gsFadeIn 0.35s ease;
}

@keyframes gsFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Cards ── */
.gs-card {
  background: var(--gs-card-bg);
  border-radius: var(--gs-radius);
  box-shadow: var(--gs-shadow);
  border: none;
  overflow: hidden;
  transition: box-shadow var(--gs-transition);
}

.gs-card:hover {
  box-shadow: var(--shadow-lg);
}

.gs-card-warning {
  background: linear-gradient(135deg, var(--gs-card-bg) 0%, rgba(245,158,11,0.06) 100%);
}

.gs-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 26px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.gs-card-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--gs-text-1);
  letter-spacing: -0.01em;
}

.gs-card-body {
  padding: 22px 26px;
}

/* ── Form Grid ── */
.gs-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.gs-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gs-field-full {
  grid-column: 1 / -1;
}

.gs-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--gs-text-2);
}

/* ── Inputs (Neumorphic Inset) ── */
.gs-input-wrap {
  position: relative;
}

.gs-input,
.gs-textarea,
.gs-select {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--gs-text-1);
  background: var(--gs-surface);
  border: 1px solid transparent;
  border-radius: 12px;
  box-shadow: var(--gs-shadow-inset);
  outline: none;
  transition: box-shadow 0.25s, border-color 0.25s;
  font-family: inherit;
}

.gs-input:hover,
.gs-textarea:hover,
.gs-select:hover {
  box-shadow: 0 0 0 2px rgba(0,0,0,0.04);
}

.gs-input:focus,
.gs-textarea:focus,
.gs-select:focus {
  box-shadow: 0 0 0 2px var(--gs-accent-glow);
  border-color: transparent;
}

.gs-input::placeholder,
.gs-textarea::placeholder {
  color: var(--gs-text-3);
}

.gs-input-xs {
  width: 80px;
  padding: 6px 10px;
  font-size: 13px;
  text-align: center;
}

.gs-input-table {
  width: 100px;
  padding: 6px 10px;
  font-size: 13px;
  text-align: center;
}

.gs-textarea {
  resize: vertical;
  line-height: 1.65;
}

.gs-textarea-lg {
  min-height: 130px;
}

.gs-textarea-code {
  font-family: "JetBrains Mono", "Fira Code", "Consolas", monospace;
  font-size: 13px;
  line-height: 1.6;
  tab-size: 2;
}

.gs-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239CA3AF' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
  cursor: pointer;
}

.gs-input-readonly {
  display: flex;
  align-items: center;
  gap: 8px;
}

.gs-input-readonly .gs-input {
  flex: 1;
}

/* ── Field Error ── */
.gs-field-error {
  font-size: 12px;
  color: var(--gs-danger);
  margin: 2px 0 0;
}

/* ── Buttons ── */
.gs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 28px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(.22,.61,.36,1);
  white-space: nowrap;
  font-family: inherit;
}

.gs-btn-primary {
  background: var(--gs-accent);
  color: var(--gs-text-1);
  box-shadow: 0 4px 14px var(--gs-accent-glow);
}

.gs-btn-primary:hover:not(:disabled) {
  background: var(--gs-accent-hover);
  box-shadow: 0 6px 22px rgba(255,209,42,0.35);
  transform: translateY(-1px);
}

.gs-btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.gs-btn-primary.is-loading {
  pointer-events: none;
}

.gs-btn-secondary {
  background: var(--gs-card-bg);
  color: var(--gs-text-2);
  box-shadow: var(--gs-shadow-sm);
}

.gs-btn-secondary:hover:not(:disabled) {
  background: var(--gs-accent-light);
  color: var(--gs-text-1);
  box-shadow: var(--gs-shadow);
}

.gs-btn-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.gs-btn-danger {
  background: var(--gs-danger);
  color: #fff;
  box-shadow: 0 4px 14px rgba(239,68,68,0.25);
}

.gs-btn-danger:hover:not(:disabled) {
  background: #dc2626;
  box-shadow: 0 6px 22px rgba(239,68,68,0.35);
  transform: translateY(-1px);
}

.gs-btn-danger:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.gs-btn-sm {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: var(--gs-card-bg);
  color: var(--gs-text-2);
  box-shadow: var(--gs-shadow-sm);
  transition: all 0.2s;
  white-space: nowrap;
  font-family: inherit;
}

.gs-btn-sm:hover {
  background: var(--gs-accent-light);
  color: var(--gs-text-1);
  box-shadow: var(--gs-shadow);
  transform: translateY(-1px);
}

.gs-btn-sm-danger {
  color: var(--gs-danger);
}

.gs-btn-sm-danger:hover {
  background: rgba(239,68,68,0.08);
  color: #dc2626;
}

.gs-inline-btn {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: var(--gs-accent-light);
  color: var(--gs-accent-hover);
  transition: all 0.2s;
  font-family: inherit;
  white-space: nowrap;
}

.gs-inline-btn:hover {
  background: var(--gs-accent);
  color: var(--gs-text-1);
}

.gs-btn-link {
  background: none;
  border: none;
  padding: 4px 10px;
  font-size: 13px;
  font-weight: 500;
  color: var(--gs-accent-hover);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
  border-radius: 6px;
  font-family: inherit;
}

.gs-btn-link:hover {
  background: var(--gs-accent-light);
  color: var(--gs-text-1);
}

.gs-btn-link-danger {
  color: var(--gs-danger);
}

.gs-btn-link-danger:hover {
  background: rgba(239,68,68,0.06);
  color: #dc2626;
}

.gs-btn-copy {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--gs-text-3);
  cursor: pointer;
  transition: all 0.15s;
}

.gs-btn-copy:hover {
  background: var(--gs-surface);
  color: var(--gs-text-1);
}

.gs-btn-row {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

/* ── Actions Bar (bottom sticky) ── */
.gs-actions-bar {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 12px;
  padding: 20px 0 4px;
  border-top: 1px solid rgba(0,0,0,0.04);
  margin-top: 4px;
  position: sticky;
  bottom: 0;
  background: linear-gradient(to top, var(--bg-global) 60%, transparent);
  z-index: 5;
}

/* ── Spinner ── */
.gs-spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(0,0,0,0.15);
  border-top-color: var(--gs-text-1);
  border-radius: 50%;
  animation: gsSpin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes gsSpin {
  to { transform: rotate(360deg); }
}

/* ── Toggle Switch (custom, neumorphic) ── */
.gs-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
  flex-shrink: 0;
}

.gs-switch input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.gs-switch-slider {
  position: absolute;
  inset: 0;
  border-radius: 26px;
  background: var(--gs-surface-2);
  box-shadow: inset 1px 1px 3px rgba(0,0,0,0.1), inset -1px -1px 3px rgba(255,255,255,0.5);
  cursor: pointer;
  transition: background 0.3s, box-shadow 0.3s;
}

.gs-switch-slider::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 1px 1px 4px rgba(0,0,0,0.15);
  transition: transform 0.3s cubic-bezier(.22,.61,.36,1);
}

.gs-switch input:checked + .gs-switch-slider {
  background: var(--gs-accent);
  box-shadow: inset 0 0 0 1px rgba(0,0,0,0.05);
}

.gs-switch input:checked + .gs-switch-slider::after {
  transform: translateX(22px);
}

.gs-switch-warning input:checked + .gs-switch-slider {
  background: var(--gs-warning);
}

/* ── Toggle Row ── */
.gs-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(0,0,0,0.03);
}

.gs-toggle-row:last-child {
  border-bottom: none;
}

.gs-toggle-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gs-toggle-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--gs-text-1);
}

.gs-toggle-desc {
  font-size: 12px;
  color: var(--gs-text-3);
}

.gs-toggles-group {
  display: flex;
  flex-direction: column;
}

/* ── Lockout Inline ── */
.gs-lockout-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 0 0;
  font-size: 14px;
  color: var(--gs-text-2);
  flex-wrap: wrap;
}

/* ── Radio Group ── */
.gs-radio-group {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.gs-radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 14px;
  color: var(--gs-text-1);
  font-weight: 500;
  position: relative;
  padding: 6px 0;
}

.gs-radio input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.gs-radio-dot {
  display: inline-block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--gs-surface);
  box-shadow: var(--gs-shadow-inset);
  position: relative;
  flex-shrink: 0;
  transition: box-shadow 0.25s;
}

.gs-radio-dot::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gs-accent);
  transform: translate(-50%,-50%) scale(0);
  transition: transform 0.25s cubic-bezier(.22,.61,.36,1);
}

.gs-radio input:checked ~ .gs-radio-dot::after {
  transform: translate(-50%,-50%) scale(1);
}

.gs-radio input:checked ~ .gs-radio-dot {
  box-shadow: 0 0 0 2px var(--gs-accent-glow);
}

/* ── Upload Zone ── */
.gs-upload-row {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.gs-upload-row-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gs-upload-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gs-upload-zone {
  width: 160px;
  height: 160px;
  border-radius: 16px;
  background: var(--gs-surface);
  box-shadow: var(--gs-shadow-inset);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.25s;
  overflow: hidden;
}

.gs-upload-zone:hover {
  box-shadow: 0 0 0 2px var(--gs-accent-glow);
}

.gs-upload-zone-sm {
  width: 100px;
  height: 100px;
  border-radius: 12px;
}

.gs-upload-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--gs-text-3);
  font-size: 12px;
  font-weight: 500;
}

.gs-upload-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gs-preview-circle {
  border-radius: 50%;
}

.gs-preview-square-sm {
  border-radius: 8px;
}

.gs-upload-actions {
  display: flex;
  gap: 8px;
}

/* ── OAuth List ── */
.gs-oauth-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.gs-oauth-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--gs-surface);
  border-radius: 14px;
  transition: box-shadow 0.2s;
}

.gs-oauth-item:hover {
  box-shadow: var(--gs-shadow-sm);
}

.gs-oauth-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gs-oauth-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gs-oauth-wechat { background: rgba(7,193,96,0.1); color: #07c160; }
.gs-oauth-github { background: rgba(36,41,47,0.08); color: #24292f; }
.gs-oauth-qq     { background: rgba(18,183,245,0.1); color: #12b7f5; }

.gs-oauth-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--gs-text-1);
}

.gs-oauth-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ── Payment List ── */
.gs-payment-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.gs-payment-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--gs-surface);
  border-radius: 14px;
  transition: box-shadow 0.2s;
}

.gs-payment-item:hover {
  box-shadow: var(--gs-shadow-sm);
}

.gs-payment-left {
  display: flex;
  align-items: center;
  gap: 14px;
}

.gs-payment-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.gs-pay-wechat { background: rgba(7,193,96,0.1); color: #07c160; }
.gs-pay-alipay { background: rgba(0,166,226,0.1); color: #00a6e2; }
.gs-pay-bank   { background: rgba(99,102,241,0.08); color: #6366f1; }

.gs-payment-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--gs-text-1);
}

.gs-payment-right {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* ── Tables ── */
.gs-table-wrap {
  overflow-x: auto;
}

.gs-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}

.gs-table th {
  padding: 10px 14px;
  font-size: 12px;
  font-weight: 700;
  color: var(--gs-text-2);
  text-align: left;
  background: var(--gs-surface);
  border-bottom: none;
  white-space: nowrap;
}

.gs-table th:first-child { border-radius: 12px 0 0 12px; }
.gs-table th:last-child  { border-radius: 0 12px 12px 0; }

.gs-table td {
  padding: 12px 14px;
  color: var(--gs-text-1);
  border-bottom: 1px solid rgba(0,0,0,0.03);
  vertical-align: middle;
}

.gs-table tbody tr:hover td {
  background: var(--gs-accent-light);
}

.gs-table tbody tr:last-child td {
  border-bottom: none;
}

.gs-url-cell {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--gs-text-2);
  font-size: 12px;
}

.gs-key-cell {
  display: flex;
  align-items: center;
  gap: 6px;
}

.gs-code-mask {
  font-family: "JetBrains Mono", "Consolas", monospace;
  font-size: 12px;
  color: var(--gs-text-2);
  background: var(--gs-surface);
  padding: 3px 8px;
  border-radius: 6px;
}

.gs-empty-cell {
  text-align: center;
  color: var(--gs-text-3);
  padding: 24px 0 !important;
}

/* ── Tags ── */
.gs-tag {
  display: inline-block;
  padding: 2px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: var(--gs-radius-pill);
  white-space: nowrap;
}

.gs-tag-blue  { background: rgba(99,102,241,0.1);  color: #6366f1; }
.gs-tag-green { background: rgba(34,197,94,0.1);   color: #16a34a; }
.gs-tag-gray  { background: rgba(156,163,175,0.15); color: #6b7280; }

/* ── Divider ── */
.gs-divider {
  height: 1px;
  background: rgba(0,0,0,0.04);
  margin: 18px 0;
}

/* ── Sub Title ── */
.gs-sub-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--gs-text-1);
  margin: 0 0 12px;
}

/* ── Description Text ── */
.gs-desc-text {
  font-size: 14px;
  color: var(--gs-text-2);
  line-height: 1.7;
  margin: 0 0 16px;
}

/* ── Test Row ── */
.gs-test-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.gs-test-result {
  margin-top: 8px;
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 600;
}

.gs-test-safe {
  background: rgba(34,197,94,0.08);
  color: #16a34a;
}

.gs-test-danger {
  background: rgba(239,68,68,0.08);
  color: #dc2626;
}

/* ── Backup ── */
.gs-backup-top {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}

.gs-backup-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gs-backup-label {
  font-size: 12px;
  color: var(--gs-text-3);
  font-weight: 600;
}

.gs-backup-value {
  font-size: 14px;
  color: var(--gs-text-1);
  font-weight: 500;
}

/* ── Version ── */
.gs-version-row {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}

.gs-version-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.gs-version-label {
  font-size: 12px;
  color: var(--gs-text-3);
  font-weight: 600;
}

.gs-version-value {
  font-size: 22px;
  font-weight: 700;
  color: var(--gs-text-1);
  letter-spacing: -0.02em;
}

.gs-version-value small {
  font-size: 12px;
  font-weight: 500;
  color: var(--gs-text-3);
}

.gs-version-new {
  color: var(--gs-success);
}

/* ── Warning Text ── */
.gs-warning-text {
  font-size: 14px;
  color: var(--gs-text-2);
  line-height: 1.7;
  margin: 0 0 16px;
}

.gs-warning-text b {
  color: var(--gs-danger);
  font-weight: 700;
}

/* ── Dialog (Neumorphic Modal) ── */
.gs-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.35);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  animation: gsOverlayIn 0.2s ease;
}

@keyframes gsOverlayIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.gs-dialog {
  width: 480px;
  max-width: 92vw;
  max-height: 85vh;
  background: var(--gs-card-bg);
  border-radius: var(--gs-radius);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  animation: gsDialogIn 0.3s cubic-bezier(.22,.61,.36,1);
  overflow: hidden;
}

.gs-dialog-sm {
  width: 400px;
}

@keyframes gsDialogIn {
  from { opacity: 0; transform: scale(0.95) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.gs-dialog-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid rgba(0,0,0,0.04);
  font-size: 16px;
  font-weight: 700;
  color: var(--gs-text-1);
}

.gs-dialog-header-danger {
  background: rgba(239,68,68,0.04);
  color: var(--gs-danger);
}

.gs-dialog-close {
  width: 30px;
  height: 30px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--gs-text-3);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.gs-dialog-close:hover {
  background: var(--gs-surface);
  color: var(--gs-text-1);
}

.gs-dialog-body {
  padding: 22px 24px;
  overflow-y: auto;
  flex: 1;
}

.gs-dialog-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid rgba(0,0,0,0.04);
}

/* ── Preview Content ── */
.gs-preview-content {
  font-size: 14px;
  color: var(--gs-text-1);
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-word;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .gs-form-grid {
    grid-template-columns: 1fr;
  }

  .gs-upload-row-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .gs-upload-row {
    flex-direction: column;
  }
}

@media (max-width: 640px) {
  .gs-card-body {
    padding: 16px 18px;
  }

  .gs-card-header {
    padding: 14px 18px;
  }

  .gs-upload-row-3 {
    grid-template-columns: 1fr;
  }

  .gs-actions-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .gs-radio-group {
    flex-direction: column;
    gap: 8px;
  }

  .gs-lockout-inline {
    flex-direction: column;
    align-items: flex-start;
  }

  .gs-backup-top {
    flex-direction: column;
    align-items: flex-start;
  }
}