/**
 * 情绪词 · 运营后台
 * 设计：claude-design 简洁白底 + Element UI 组件规格
 * Primary #409EFF · 背景 #F5F7FA · 边框 #DCDFE6
 */
:root {
  --admin-bg: #F5F7FA;
  --admin-bg-white: #FFFFFF;
  --admin-bg-hover: #F5F7FA;
  --admin-bg-active: #ECF5FF;
  --admin-text: #303133;
  --admin-text-regular: #606266;
  --admin-text-secondary: #909399;
  --admin-text-placeholder: #C0C4CC;
  --admin-border: #DCDFE6;
  --admin-border-light: #E4E7ED;
  --admin-border-lighter: #EBEEF5;
  --admin-primary: #409EFF;
  --admin-primary-light: #66B1FF;
  --admin-primary-dark: #3A8EE6;
  --admin-primary-bg: #ECF5FF;
  --admin-success: #67C23A;
  --admin-success-bg: #F0F9EB;
  --admin-warning: #E6A23C;
  --admin-warning-bg: #FDF6EC;
  --admin-danger: #F56C6C;
  --admin-danger-bg: #FEF0F0;
  --admin-info: #909399;
  --admin-info-bg: #F4F4F5;
  --admin-font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --admin-radius: 4px;
  --admin-radius-md: 6px;
  --admin-shadow: 0 2px 12px 0 rgba(0, 0, 0, 0.06);
  --admin-shadow-light: 0 1px 4px rgba(0, 0, 0, 0.04);
  --admin-side-w: 220px;
  --admin-input-h: 40px;
  --admin-space: 20px;
  --admin-space-lg: 24px;

  /* 兼容旧变量名，避免 JS 内联样式断裂 */
  --ew-bg: var(--admin-bg);
  --ew-bg-elevated: var(--admin-bg-white);
  --ew-bg-muted: var(--admin-bg-hover);
  --ew-text: var(--admin-text);
  --ew-text-secondary: var(--admin-text-regular);
  --ew-text-tertiary: var(--admin-text-secondary);
  --ew-border: var(--admin-border-lighter);
  --ew-border-strong: var(--admin-border);
  --ew-primary: var(--admin-primary);
  --ew-primary-soft: var(--admin-primary-bg);
  --ew-primary-deep: var(--admin-primary-dark);
  --ew-accent: var(--admin-primary);
  --ew-font-ui: var(--admin-font);
  --ew-font-word: var(--admin-font);
  --ew-space-lg: var(--admin-space-lg);
  --ew-space-xl: var(--admin-space-lg);
  --ew-radius-sm: var(--admin-radius);
  --ew-radius-md: var(--admin-radius-md);
  --ew-radius-lg: var(--admin-radius-md);
  --ew-radius-full: 999px;
  --ew-shadow-sm: var(--admin-shadow-light);
  --ew-shadow-md: var(--admin-shadow);
  --ew-shadow-lg: var(--admin-shadow);
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }

body.ew-admin {
  font-family: var(--admin-font);
  font-size: 14px;
  color: var(--admin-text);
  background: var(--admin-bg);
  display: flex;
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ── HTTP 警告 ── */
.ew-admin-warn {
  position: fixed;
  inset: 0 auto auto 0;
  right: 0;
  z-index: 9999;
  background: var(--admin-warning);
  color: #fff;
  padding: 12px 20px;
  font-size: 14px;
  line-height: 1.6;
  box-shadow: var(--admin-shadow);
}
.ew-admin-warn code {
  background: rgba(255, 255, 255, 0.25);
  padding: 2px 6px;
  border-radius: var(--admin-radius);
  font-size: 13px;
}
body.ew-admin--no-server .ew-admin-warn { display: block; }
body.ew-admin--no-server { padding-top: 52px; }

/* ── 侧栏（Element 白底菜单） ── */
.ew-admin-side {
  width: var(--admin-side-w);
  flex-shrink: 0;
  background: var(--admin-bg-white);
  border-right: 1px solid var(--admin-border-light);
  display: flex;
  flex-direction: column;
  padding: 0;
  box-shadow: none;
}

.ew-admin-brand {
  display: flex;
  gap: 12px;
  align-items: center;
  height: 60px;
  padding: 0 20px;
  border-bottom: 1px solid var(--admin-border-lighter);
}
.ew-admin-brand__mark {
  width: 36px;
  height: 36px;
  border-radius: var(--admin-radius-md);
  background: var(--admin-primary);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 16px;
  font-weight: 600;
  flex-shrink: 0;
}
.ew-admin-brand__title {
  font-weight: 600;
  font-size: 16px;
  color: var(--admin-text);
  line-height: 1.3;
}
.ew-admin-brand__sub {
  font-size: 12px;
  color: var(--admin-text-secondary);
  margin-top: 2px;
}

.ew-admin-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  padding: 12px 8px;
}
.ew-admin-nav__item {
  display: flex;
  align-items: center;
  gap: 10px;
  text-align: left;
  border: none;
  background: transparent;
  padding: 0 16px;
  height: 44px;
  border-radius: var(--admin-radius);
  font-size: 14px;
  color: var(--admin-text-regular);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  width: 100%;
}
.ew-admin-nav__item::before {
  content: attr(data-icon);
  font-size: 16px;
  width: 20px;
  text-align: center;
  flex-shrink: 0;
  background: none;
  border-radius: 0;
}
.ew-admin-nav__item:hover {
  background: var(--admin-bg-hover);
  color: var(--admin-primary);
}
.ew-admin-nav__item--active {
  background: var(--admin-primary-bg);
  color: var(--admin-primary);
  font-weight: 500;
  box-shadow: none;
}
.ew-admin-nav__item--active::before {
  background: none;
}

.ew-admin-side__foot {
  margin-top: auto;
  padding: 16px 20px;
  border-top: 1px solid var(--admin-border-lighter);
}
.ew-admin-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 13px;
  color: var(--admin-primary);
  text-decoration: none;
}
.ew-admin-link:hover { color: var(--admin-primary-light); }
.ew-admin-hint {
  font-size: 12px;
  color: var(--admin-text-secondary);
  line-height: 1.6;
  margin-top: 8px;
}
.ew-admin-hint code {
  font-size: 11px;
  background: var(--admin-bg-hover);
  padding: 1px 4px;
  border-radius: 2px;
}

/* ── 主区 ── */
.ew-admin-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--admin-bg);
}

.ew-admin-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--admin-space-lg);
  background: var(--admin-bg-white);
  border-bottom: 1px solid var(--admin-border-lighter);
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 60px;
}
.ew-admin-top h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--admin-text);
  line-height: 1.4;
}
.ew-admin-top__sub {
  font-size: 13px;
  color: var(--admin-text-secondary);
  margin-top: 2px;
}
.ew-admin-top__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.ew-admin-root {
  flex: 1;
  overflow: auto;
  padding: var(--admin-space-lg);
  max-width: 1280px;
  width: 100%;
}

/* ── 统计卡片 ── */
.ew-admin-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: var(--admin-space);
}
.ew-admin-stat {
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  padding: 20px;
  border: 1px solid var(--admin-border-lighter);
}
.ew-admin-stat__val {
  font-size: 28px;
  font-weight: 600;
  color: var(--admin-text);
  line-height: 1.2;
}
.ew-admin-stat__label {
  font-size: 13px;
  color: var(--admin-text-secondary);
  margin-top: 8px;
}

/* ── 卡片 / 表格（Element Table） ── */
.ew-admin-card {
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  border: 1px solid var(--admin-border-lighter);
  overflow: hidden;
}
.ew-admin-card__head {
  padding: 14px 20px;
  border-bottom: 1px solid var(--admin-border-lighter);
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text);
  background: var(--admin-bg-white);
}

.ew-admin-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.ew-admin-table th, .ew-admin-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--admin-border-lighter);
  color: var(--admin-text-regular);
}
.ew-admin-table th {
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text-secondary);
  background: var(--admin-bg-hover);
  text-transform: none;
  letter-spacing: normal;
}
.ew-admin-table tbody tr { transition: background 0.15s; }
.ew-admin-table tbody tr:hover td { background: var(--admin-bg-hover); }
.ew-admin-table tbody tr:last-child td { border-bottom: none; }

.ew-admin-badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: var(--admin-radius);
  font-size: 12px;
  font-weight: 500;
  line-height: 20px;
  border: 1px solid transparent;
}
.ew-admin-badge--on {
  background: var(--admin-success-bg);
  color: var(--admin-success);
  border-color: #E1F3D8;
}
.ew-admin-badge--off {
  background: var(--admin-info-bg);
  color: var(--admin-info);
  border-color: var(--admin-border-lighter);
}
.ew-admin-badge--soon {
  background: var(--admin-warning-bg);
  color: var(--admin-warning);
  border-color: #FAECD8;
}

/* ── 按钮（Element Button） ── */
.ew-admin-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  padding: 0 16px;
  height: var(--admin-input-h);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
  white-space: nowrap;
  background: var(--admin-bg-white);
  color: var(--admin-text-regular);
}
.ew-admin-btn:active { opacity: 0.92; }
.ew-admin-btn--primary {
  background: var(--admin-primary);
  border-color: var(--admin-primary);
  color: #fff;
  box-shadow: none;
}
.ew-admin-btn--primary:hover {
  background: var(--admin-primary-light);
  border-color: var(--admin-primary-light);
}
.ew-admin-btn--secondary {
  background: var(--admin-bg-white);
  color: var(--admin-text-regular);
  border-color: var(--admin-border);
}
.ew-admin-btn--secondary:hover {
  color: var(--admin-primary);
  border-color: #C6E2FF;
  background: var(--admin-primary-bg);
}
.ew-admin-btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--admin-text-regular);
}
.ew-admin-btn--ghost:hover {
  color: var(--admin-primary);
  background: var(--admin-primary-bg);
}
.ew-admin-btn--danger {
  color: var(--admin-danger);
  border-color: #FBC4C4;
  background: var(--admin-bg-white);
}
.ew-admin-btn--danger:hover {
  background: var(--admin-danger-bg);
  border-color: var(--admin-danger);
  color: var(--admin-danger);
}
.ew-admin-btn--sm {
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
}

/* ── 表单（Element Form / Input） ── */
.ew-admin-form {
  max-width: 960px;
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  padding: 24px;
  border: 1px solid var(--admin-border-lighter);
}
.ew-admin-form__section {
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text);
  margin: 24px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--admin-border-lighter);
}
.ew-admin-form__section:first-child { margin-top: 0; }
.ew-admin-form__section-desc {
  margin: 6px 0 0;
  font-size: 12px;
  font-weight: 400;
  color: var(--admin-text-secondary);
  line-height: 1.5;
}

.ew-admin-field { margin-bottom: 20px; }
.ew-admin-field label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text);
  margin-bottom: 6px;
  line-height: 1.4;
}
.ew-admin-field__hint {
  font-size: 12px;
  color: var(--admin-text-secondary);
  font-weight: 400;
  margin-left: 6px;
}
.ew-admin-field__hint:empty { display: none; }
.ew-admin-req {
  color: #e11d48;
  font-weight: 700;
  margin-left: 2px;
}
.ew-admin-status-radios {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 6px;
}
.ew-admin-quiz-options__label {
  margin: 0 0 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--admin-text);
}
.ew-admin-quiz-options__label .ew-admin-hint {
  margin-left: 6px;
  font-weight: 400;
}
.ew-admin-quiz-opt--error .ew-admin-input,
.ew-admin-input--error,
textarea.ew-admin-input--error {
  border-color: #e11d48 !important;
  box-shadow: 0 0 0 1px rgba(225, 29, 72, 0.2);
}
.ew-admin-quiz-options--error {
  border: 1px solid #e11d48;
  border-radius: 8px;
  padding: 8px;
  background: rgba(225, 29, 72, 0.04);
}
.ew-admin-field--error > label {
  color: #e11d48;
}
.ew-admin-field__desc {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--admin-text-secondary);
  line-height: 1.55;
}

.ew-admin-tip {
  padding: 12px 16px;
  margin-bottom: 16px;
  background: var(--admin-primary-bg);
  border: 1px solid #D9ECFF;
  border-radius: var(--admin-radius-md);
  font-size: 13px;
  color: var(--admin-text-regular);
  line-height: 1.6;
}
.ew-admin-tip strong { color: var(--admin-text); }

.ew-admin-qbadge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 28px;
  height: 22px;
  padding: 0 6px;
  border-radius: var(--admin-radius);
  background: var(--admin-primary-bg);
  color: var(--admin-primary);
  font-size: 12px;
  font-weight: 600;
}
.ew-admin-qbadge--lg {
  min-width: 36px;
  height: 36px;
  font-size: 14px;
  border-radius: var(--admin-radius-md);
}

.ew-admin-mini-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--admin-radius);
  font-size: 12px;
  line-height: 18px;
  white-space: nowrap;
}
.ew-admin-mini-badge--auto {
  background: var(--admin-info-bg);
  color: var(--admin-text-secondary);
}
.ew-admin-mini-badge--custom {
  background: var(--admin-success-bg);
  color: var(--admin-success);
}

.ew-admin-quiz-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.ew-admin-quiz-card {
  background: var(--admin-bg-white);
  border: 1px solid var(--admin-border-lighter);
  border-radius: var(--admin-radius-md);
  padding: 18px;
}
.ew-admin-quiz-card__head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}
.ew-admin-quiz-card__title {
  font-size: 15px;
  font-weight: 500;
  color: var(--admin-text);
  margin-bottom: 6px;
}
.ew-admin-quiz-card__desc {
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--admin-text-secondary);
  line-height: 1.55;
}

.ew-admin-input, .ew-admin-select, .ew-admin-textarea {
  width: 100%;
  padding: 0 15px;
  height: var(--admin-input-h);
  border: 1px solid var(--admin-border);
  border-radius: var(--admin-radius);
  font-size: 14px;
  font-family: inherit;
  background: var(--admin-bg-white);
  color: var(--admin-text-regular);
  transition: border-color 0.2s;
  line-height: var(--admin-input-h);
}
.ew-admin-textarea {
  height: auto;
  min-height: 96px;
  padding: 10px 15px;
  line-height: 1.6;
  resize: vertical;
}
.ew-admin-input:hover, .ew-admin-select:hover, .ew-admin-textarea:hover {
  border-color: var(--admin-text-placeholder);
}
.ew-admin-input:focus, .ew-admin-select:focus, .ew-admin-textarea:focus {
  outline: none;
  border-color: var(--admin-primary);
}
.ew-admin-input::placeholder, .ew-admin-textarea::placeholder {
  color: var(--admin-text-placeholder);
}
.ew-admin-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.ew-admin-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  background: transparent;
  border-radius: 0;
  font-size: 14px;
  color: var(--admin-text-regular);
  cursor: pointer;
  min-height: var(--admin-input-h);
}
.ew-admin-check input {
  width: 14px;
  height: 14px;
  accent-color: var(--admin-primary);
  margin: 0;
}

/* ── Tabs（Element Tabs 风格） ── */
.ew-admin-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 20px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--admin-border-lighter);
}
.ew-admin-tab {
  padding: 0 20px;
  height: 40px;
  line-height: 40px;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  color: var(--admin-text-regular);
  transition: color 0.2s;
  margin-bottom: -1px;
}
.ew-admin-tab:hover { color: var(--admin-primary); }
.ew-admin-tab--active {
  color: var(--admin-primary);
  border-bottom-color: var(--admin-primary);
  background: transparent;
  box-shadow: none;
}

.ew-admin-toolbar {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: var(--admin-space);
  flex-wrap: wrap;
  padding: 16px 20px;
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  border: 1px solid var(--admin-border-lighter);
}
.ew-admin-toolbar label {
  font-size: 14px;
  color: var(--admin-text-regular);
  font-weight: 400;
}

.ew-admin-content-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  padding: 4px;
  background: var(--admin-bg-white);
  border: 1px solid var(--admin-border-lighter);
  border-radius: var(--admin-radius-md);
}

.ew-admin-content-tab {
  flex: 1;
  height: 36px;
  border: none;
  background: transparent;
  border-radius: var(--admin-radius);
  font-size: 14px;
  color: var(--admin-text-regular);
  cursor: pointer;
  font-family: inherit;
}

.ew-admin-content-tab:hover {
  background: var(--admin-bg-hover);
}

.ew-admin-content-tab--active {
  background: var(--admin-primary-bg);
  color: var(--admin-primary);
  font-weight: 600;
}

.ew-admin-advanced {
  padding: 12px 16px;
  background: var(--admin-bg-white);
  border: 1px dashed var(--admin-border);
  border-radius: var(--admin-radius-md);
}

.ew-admin-advanced summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--admin-text-secondary);
}

.ew-admin-name-link {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-size: inherit;
  font-weight: 500;
  color: var(--admin-primary);
  cursor: pointer;
  text-align: left;
}
.ew-admin-name-link:hover { color: var(--admin-primary-light); }

/* ── 词库详情 Hero ── */
.ew-admin-pack-hero {
  display: flex;
  gap: 20px;
  padding: 24px;
  margin-bottom: var(--admin-space);
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  border: 1px solid var(--admin-border-lighter);
}
.ew-admin-pack-hero__cover {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  border-radius: var(--admin-radius-md);
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 24px;
  font-weight: 600;
  overflow: hidden;
}
.ew-admin-pack-hero__body { flex: 1; min-width: 0; }
.ew-admin-pack-hero__head {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.ew-admin-pack-hero__title {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
  color: var(--admin-text);
}
.ew-admin-pack-hero__desc {
  margin: 0 0 16px;
  font-size: 14px;
  color: var(--admin-text-regular);
  line-height: 1.6;
}
.ew-admin-pack-meta {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px 20px;
  margin: 0;
  font-size: 14px;
}
.ew-admin-pack-meta div { min-width: 0; }
.ew-admin-pack-meta__wide { grid-column: 1 / -1; }
.ew-admin-pack-meta dt {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 400;
  color: var(--admin-text-secondary);
  text-transform: none;
  letter-spacing: normal;
}
.ew-admin-pack-meta dd {
  margin: 0;
  color: var(--admin-text);
  word-break: break-all;
}
.ew-admin-meta-hint { font-size: 12px; color: var(--admin-text-secondary); }
.ew-admin-tag {
  display: inline-block;
  padding: 0 8px;
  height: 24px;
  line-height: 22px;
  margin: 0 4px 4px 0;
  border-radius: var(--admin-radius);
  background: var(--admin-info-bg);
  border: 1px solid var(--admin-border-lighter);
  font-size: 12px;
  color: var(--admin-text-regular);
}
.ew-admin-search {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 240px;
}
.ew-admin-search .ew-admin-input {
  flex: 1;
  max-width: 320px;
}
.ew-admin-table__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ew-admin-cover {
  width: 40px;
  height: 40px;
  border-radius: var(--admin-radius-md);
  display: inline-grid;
  place-items: center;
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  overflow: hidden;
}
.ew-admin-cover--img,
.ew-admin-pack-hero__cover.ew-admin-pack-hero__cover--img {
  padding: 0;
  background: var(--admin-bg-hover);
}
.ew-admin-cover--img img,
.ew-admin-pack-hero__cover--img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.ew-admin-cover-upload {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.ew-admin-cover-upload__preview {
  width: 96px;
  height: 96px;
  padding: 0;
  border: 1px dashed var(--admin-border);
  border-radius: var(--admin-radius-md);
  background: var(--admin-bg-hover);
  cursor: pointer;
  overflow: hidden;
  display: grid;
  place-items: center;
}
.ew-admin-cover-upload__preview:hover {
  border-color: var(--admin-primary, #5b9fd4);
}
.ew-admin-cover-upload__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.ew-admin-cover-upload__placeholder {
  width: 100%;
  height: 100%;
  display: grid;
  place-items: center;
  color: #fff;
  font-size: 28px;
  font-weight: 600;
}
.ew-admin-cover-upload__actions {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ew-admin-footnote {
  margin-top: 16px;
  font-size: 13px;
  color: var(--admin-text-secondary);
  line-height: 1.6;
}
.ew-admin-footnote code {
  font-size: 12px;
  background: var(--admin-bg-hover);
  padding: 2px 6px;
  border-radius: 2px;
}

.ew-admin-empty {
  text-align: center;
  padding: 40px 24px;
  color: var(--admin-text-secondary);
  font-size: 14px;
}
.ew-admin-empty__icon { font-size: 36px; margin-bottom: 12px; opacity: 0.5; }

.ew-admin-loading {
  text-align: center;
  padding: 80px 24px;
  color: var(--admin-text-secondary);
}
.ew-admin-loading::after {
  content: '';
  display: block;
  width: 28px;
  height: 28px;
  margin: 16px auto 0;
  border: 2px solid var(--admin-border-lighter);
  border-top-color: var(--admin-primary);
  border-radius: 50%;
  animation: ew-spin 0.8s linear infinite;
}
@keyframes ew-spin { to { transform: rotate(360deg); } }

.ew-admin-toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--admin-bg-white);
  color: var(--admin-text);
  padding: 12px 20px;
  border-radius: var(--admin-radius-md);
  font-size: 14px;
  border: 1px solid var(--admin-border-lighter);
  box-shadow: var(--admin-shadow);
  z-index: 200;
  animation: ew-toast-in 0.25s ease;
}
@keyframes ew-toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.ew-admin-q-card {
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  padding: 20px;
  margin-bottom: 16px;
  border: 1px solid var(--admin-border-lighter);
}
.ew-admin-q-card__head {
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--admin-border-lighter);
  color: var(--admin-text);
}

.ew-admin-weight-row {
  display: grid;
  grid-template-columns: 100px 1fr 40px;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  font-size: 14px;
  color: var(--admin-text-regular);
}
.ew-admin-range { width: 100%; accent-color: var(--admin-primary); }
.ew-admin-range-val {
  text-align: center;
  color: var(--admin-text-secondary);
  font-size: 13px;
}

/* ── 分数区间（放大输入区） ── */
.ew-admin-bands { margin-bottom: 12px; }

.ew-admin-band-row {
  display: grid;
  grid-template-columns: 220px 160px 1fr auto;
  gap: 16px;
  align-items: start;
  margin-bottom: 12px;
  padding: 16px;
  background: var(--admin-bg-hover);
  border: 1px solid var(--admin-border-lighter);
  border-radius: var(--admin-radius-md);
}

.ew-admin-band-row__range {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.ew-admin-band-row__sep {
  flex-shrink: 0;
  padding-bottom: 10px;
  font-size: 13px;
  color: var(--admin-text-secondary);
}

.ew-admin-band-row__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.ew-admin-band-row__label {
  font-size: 12px;
  color: var(--admin-text-secondary);
  line-height: 1.4;
}

.ew-admin-input--band-num {
  width: 88px;
  text-align: center;
}

.ew-admin-textarea--band {
  min-height: 88px;
}

.ew-admin-band-row__actions {
  display: flex;
  align-items: flex-start;
  padding-top: 22px;
}

.ew-admin-input--sm {
  height: 32px;
  padding: 0 12px;
  font-size: 13px;
  line-height: 32px;
}

/* ── 出题状态 badge ── */
.ew-admin-mini-badge--ok {
  background: var(--admin-success-bg);
  color: var(--admin-success);
}
.ew-admin-mini-badge--gap {
  background: var(--admin-warning-bg);
  color: var(--admin-warning);
}

/* ── 折叠「更多」 ── */
.ew-admin-collapse {
  margin: 16px 0;
  padding: 0;
  background: var(--admin-bg-white);
  border: 1px solid var(--admin-border-lighter);
  border-radius: var(--admin-radius-md);
}
.ew-admin-collapse summary {
  cursor: pointer;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text-regular);
  list-style: none;
}
.ew-admin-collapse summary::-webkit-details-marker { display: none; }
.ew-admin-collapse summary::before {
  content: '▸ ';
  display: inline-block;
  transition: transform 0.15s;
  color: var(--admin-text-secondary);
}
.ew-admin-collapse[open] summary::before { transform: rotate(90deg); }
.ew-admin-collapse__body { padding: 0 16px 16px; }

/* ── 练一练 · 多题卡片 ── */
.ew-admin-quiz-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--admin-border-lighter);
}

.ew-admin-scene-upload {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.ew-admin-scene-upload__preview {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 120px;
  width: 100%;
  max-width: 320px;
  border: 1px dashed var(--admin-border, #d0d5dd);
  border-radius: 10px;
  background: #f8f9fb;
  overflow: hidden;
  cursor: pointer;
  padding: 0;
}

.ew-admin-scene-upload__preview img {
  display: block;
  width: 100%;
  max-height: 160px;
  object-fit: cover;
}

.ew-admin-scene-upload__ph {
  font-size: 13px;
  color: #98a2b3;
  padding: 16px;
}

.ew-admin-scene-upload__actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.ew-admin-quiz-section__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.ew-admin-quiz-section__title {
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text);
}
.ew-admin-quiz-list { display: flex; flex-direction: column; gap: 12px; }
.ew-admin-quiz-item {
  padding: 16px;
  background: var(--admin-bg-hover);
  border: 1px solid var(--admin-border-lighter);
  border-radius: var(--admin-radius-md);
}
.ew-admin-quiz-item__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--admin-text-secondary);
}
.ew-admin-quiz-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}
.ew-admin-quiz-opt {
  display: grid;
  grid-template-columns: 24px 1fr;
  gap: 8px;
  align-items: center;
  cursor: pointer;
  font-size: 14px;
}
.ew-admin-quiz-opt input[type="radio"] {
  width: 16px;
  height: 16px;
  accent-color: var(--admin-primary);
  margin: 0;
}

/* ── 导入弹窗 ── */
.ew-admin-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.ew-admin-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(30, 27, 24, 0.45);
  backdrop-filter: blur(2px);
}
.ew-admin-modal__panel {
  position: relative;
  z-index: 1;
  width: min(560px, 100%);
  max-height: min(90vh, 720px);
  display: flex;
  flex-direction: column;
  background: var(--admin-bg-white, #fff);
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.18);
  overflow: hidden;
}
.ew-admin-modal__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px 12px;
  border-bottom: 1px solid var(--admin-border, #e5e7eb);
}
.ew-admin-modal__title {
  margin: 0;
  font-size: 17px;
  font-weight: 600;
  color: var(--admin-text);
}
.ew-admin-modal__sub {
  margin: 4px 0 0;
  font-size: 12px;
  color: var(--admin-text-secondary, #6b7280);
  line-height: 1.4;
}
.ew-admin-modal__body {
  padding: 16px 20px;
  overflow-y: auto;
  flex: 1;
}
.ew-admin-modal__foot {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  padding: 12px 20px 16px;
  border-top: 1px solid var(--admin-border, #e5e7eb);
  background: var(--admin-bg, #fafafa);
}
.ew-admin-import-kinds {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.ew-admin-import-kind {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  border: 1px solid var(--admin-border, #e5e7eb);
  border-radius: 8px;
  cursor: pointer;
  background: var(--admin-bg, #fafafa);
  transition: border-color .15s, background .15s;
}
.ew-admin-import-kind input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.ew-admin-import-kind span {
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text);
}
.ew-admin-import-kind small {
  font-size: 12px;
  color: var(--admin-text-secondary, #6b7280);
  line-height: 1.4;
}
.ew-admin-import-kind--on {
  border-color: var(--admin-primary);
  background: color-mix(in srgb, var(--admin-primary) 8%, white);
}
.ew-admin-import-tools {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 12px 0;
}
.ew-admin-import-drop {
  border: 1.5px dashed var(--admin-border, #d1d5db);
  border-radius: 8px;
  padding: 28px 16px;
  text-align: center;
  background: var(--admin-bg, #f9fafb);
  margin-bottom: 4px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.ew-admin-import-drop--over {
  border-color: var(--admin-primary);
  background: color-mix(in srgb, var(--admin-primary) 6%, white);
}
.ew-admin-import-drop__title {
  margin: 0 0 4px;
  font-size: 14px;
  font-weight: 500;
  color: var(--admin-text);
}
.ew-admin-import-drop__sub {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--admin-text-secondary, #6b7280);
}
.ew-admin-import-drop__file {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--admin-primary, #3b82f6);
  word-break: break-all;
}

/* ── 登录门禁 + 管理员管理 ── */
.ew-admin-tag--primary { background: var(--admin-primary-bg); border-color: var(--admin-primary-bg); color: var(--admin-primary); }
.ew-admin-tag--success { background: var(--admin-success-bg); border-color: var(--admin-success-bg); color: var(--admin-success); }
.ew-admin-tag--info { background: var(--admin-info-bg); border-color: var(--admin-info-bg); color: var(--admin-info); }
.ew-admin-muted { color: var(--admin-text-placeholder); }

/* 侧栏底部账号条 */
.ew-admin-acct {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--admin-border-lighter);
}
.ew-admin-acct__info { display: flex; flex-direction: column; min-width: 0; }
.ew-admin-acct__name { font-size: 13px; font-weight: 500; color: var(--admin-text); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ew-admin-acct__role { font-size: 11px; color: var(--admin-text-secondary); margin-top: 2px; }
.ew-admin-acct__logout {
  flex-shrink: 0;
  border: 1px solid var(--admin-border);
  background: var(--admin-bg-white);
  color: var(--admin-text-regular);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: var(--admin-radius);
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.ew-admin-acct__logout:hover { color: var(--admin-danger); border-color: var(--admin-danger); }

/* 管理员页新增/改密内联面板 */
.ew-auth-panel { margin-top: 16px; }
.ew-auth-panel__title { margin: 0 0 16px; font-size: 15px; color: var(--admin-text); }
.ew-auth-panel__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}
.ew-auth-panel__foot { display: flex; gap: 12px; }

/* 全屏登录页 */
body.ew-admin--login { display: block; }
body.ew-admin--login .ew-admin-side,
body.ew-admin--login .ew-admin-main { display: none; }
.ew-login {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: linear-gradient(135deg, #ecf5ff 0%, #f5f7fa 100%);
}
.ew-login__card {
  width: 100%;
  max-width: 380px;
  background: var(--admin-bg-white);
  border-radius: var(--admin-radius-md);
  box-shadow: var(--admin-shadow);
  padding: 32px 28px;
}
.ew-login__brand { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.ew-login__mark {
  width: 44px;
  height: 44px;
  border-radius: var(--admin-radius-md);
  background: var(--admin-primary);
  color: #fff;
  font-size: 22px;
  font-weight: 600;
  display: inline-grid;
  place-items: center;
}
.ew-login__title { font-size: 18px; font-weight: 600; color: var(--admin-text); }
.ew-login__sub { font-size: 12px; color: var(--admin-text-secondary); margin-top: 2px; }
.ew-login__field { display: block; margin-bottom: 18px; }
.ew-login__field > span { display: block; font-size: 13px; color: var(--admin-text-regular); margin-bottom: 8px; }
.ew-login__err {
  margin-bottom: 16px;
  padding: 8px 12px;
  border-radius: var(--admin-radius);
  background: var(--admin-danger-bg);
  color: var(--admin-danger);
  font-size: 13px;
}
.ew-login__submit { width: 100%; height: 44px; font-size: 15px; }
.ew-login__hint { margin: 18px 0 0; font-size: 12px; color: var(--admin-text-secondary); text-align: center; }
.ew-login__hint code {
  background: var(--admin-bg-hover);
  padding: 1px 5px;
  border-radius: 2px;
  font-size: 11px;
}

/* ── 响应式 ── */
@media (max-width: 960px) {
  body.ew-admin { flex-direction: column; }
  .ew-admin-side {
    width: 100%;
    flex-direction: column;
  }
  .ew-admin-nav {
    flex-direction: row;
    flex-wrap: wrap;
    padding: 8px;
  }
  .ew-admin-nav__item {
    width: auto;
    flex: 1;
    min-width: 120px;
    justify-content: center;
  }
  .ew-admin-side__foot { width: 100%; }
  .ew-admin-row { grid-template-columns: 1fr; }
  .ew-admin-band-row {
    grid-template-columns: 1fr;
  }
  .ew-admin-band-row__actions { padding-top: 0; }
  .ew-admin-input--band-num { width: 100%; }
}