/* ============================================
   仙课阁 · 仙侠风格管理后台样式
   菊韵仙风 · 墨染宣纸
   ============================================ */

:root {
  /* 色彩体系 */
  --bg-paper: #f5f0e1;
  --bg-card: #faf6ed;
  --bg-card-hover: #f0e9d6;
  --bg-sidebar: #2c2416;
  --bg-sidebar-hover: #3d3422;
  --bg-sidebar-active: #4a3f28;
  --ink: #2c2416;
  --ink-light: #6b5d4f;
  --ink-lighter: #9a8d7a;
  --gold: #c8a951;
  --gold-light: #dcc178;
  --gold-dark: #a88e3e;
  --cinnabar: #b83c2c;
  --cinnabar-light: #d4584a;
  --jade: #5a8a6a;
  --jade-light: #7aaa8a;
  --border: #d4c9a8;
  --border-light: #e4dcc4;
  --border-dark: #b8a883;
  --shadow: rgba(44, 36, 22, 0.12);
  --shadow-strong: rgba(44, 36, 22, 0.2);

  /* 字体 */
  --font-serif: "Songti SC", "STSong", "SimSun", "Noto Serif SC", serif;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", sans-serif;
  --font-mono: "SF Mono", "Consolas", "Courier New", monospace;
}

/* ========== Reset ========== */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--bg-paper);
  background-image:
    radial-gradient(circle at 20% 30%, rgba(200,169,81,0.04) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(184,60,44,0.03) 0%, transparent 50%);
  font-size: 14px;
  line-height: 1.6;
}
a { color: var(--gold-dark); text-decoration: none; }
a:hover { color: var(--cinnabar); }

/* ========== 登录页 ========== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #2c2416 0%, #3d3422 50%, #2c2416 100%);
  position: relative;
  overflow: hidden;
}
.login-page::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(200,169,81,0.08) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(184,60,44,0.06) 0%, transparent 40%);
}
.login-card {
  position: relative;
  z-index: 1;
  width: 400px;
  background: var(--bg-card);
  border-radius: 4px;
  padding: 48px 40px 40px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.4);
  border: 1px solid var(--gold);
}
.login-card::before {
  content: '';
  position: absolute;
  top: -1px; left: -1px; right: -1px; bottom: -1px;
  border: 1px solid var(--border);
  border-radius: 4px;
  pointer-events: none;
  margin: 4px;
}
.login-logo {
  text-align: center;
  margin-bottom: 32px;
}
.login-logo .chrysanthemum {
  width: 64px;
  height: 64px;
  margin: 0 auto 12px;
}
.login-logo h1 {
  font-family: var(--font-serif);
  font-size: 28px;
  color: var(--ink);
  letter-spacing: 8px;
  font-weight: 600;
}
.login-logo p {
  color: var(--ink-light);
  font-size: 13px;
  letter-spacing: 4px;
  margin-top: 4px;
}
.login-form .form-group {
  margin-bottom: 20px;
}
.login-form label {
  display: block;
  font-family: var(--font-serif);
  color: var(--ink-light);
  margin-bottom: 6px;
  font-size: 13px;
  letter-spacing: 2px;
}
.login-form input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border);
  background: var(--bg-paper);
  color: var(--ink);
  font-size: 14px;
  border-radius: 2px;
  transition: border-color 0.2s;
  font-family: var(--font-sans);
}
.login-form input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200,169,81,0.15);
}
.login-form .btn-login {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--gold-dark), var(--gold));
  color: #fff;
  border: none;
  font-size: 16px;
  font-family: var(--font-serif);
  letter-spacing: 6px;
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.3s;
  margin-top: 8px;
}
.login-form .btn-login:hover {
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  box-shadow: 0 4px 16px rgba(200,169,81,0.4);
}
.login-error {
  color: var(--cinnabar);
  text-align: center;
  margin-bottom: 16px;
  font-size: 13px;
  padding: 8px;
  background: rgba(184,60,44,0.08);
  border-radius: 2px;
}
.login-hint {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
  font-size: 12px;
  color: var(--ink-lighter);
  text-align: center;
  line-height: 1.8;
}

/* ========== 主布局 ========== */
.admin-layout {
  display: flex;
  min-height: 100vh;
}

/* 侧边栏 */
.sidebar {
  width: 220px;
  background: var(--bg-sidebar);
  color: #d4c9a8;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
}
.sidebar-header {
  padding: 24px 20px;
  text-align: center;
  border-bottom: 1px solid rgba(200,169,81,0.15);
}
.sidebar-header .chrysanthemum-small {
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  opacity: 0.9;
}
.sidebar-header h2 {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--gold);
  letter-spacing: 4px;
}
.sidebar-header p {
  font-size: 11px;
  color: var(--ink-lighter);
  letter-spacing: 2px;
  margin-top: 2px;
}
.sidebar-nav {
  flex: 1;
  padding: 12px 0;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: #b8a883;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.nav-item:hover {
  background: var(--bg-sidebar-hover);
  color: var(--gold-light);
}
.nav-item.active {
  background: var(--bg-sidebar-active);
  color: var(--gold);
  border-left-color: var(--gold);
}
.nav-item .nav-icon {
  font-size: 18px;
  width: 20px;
  text-align: center;
}
.nav-badge {
  margin-left: auto;
  background: var(--cinnabar);
  color: #fff;
  font-size: 11px;
  padding: 1px 7px;
  border-radius: 10px;
  min-width: 18px;
  text-align: center;
}
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(200,169,81,0.15);
  font-size: 12px;
}
.sidebar-footer .admin-info {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.sidebar-footer .admin-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--gold-dark);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-family: var(--font-serif);
}
.sidebar-footer .admin-name {
  color: var(--gold-light);
  font-size: 13px;
}
.sidebar-footer .btn-logout {
  color: var(--ink-lighter);
  cursor: pointer;
  font-size: 12px;
}
.sidebar-footer .btn-logout:hover {
  color: var(--cinnabar-light);
}

/* 主内容区 */
.main-content {
  flex: 1;
  margin-left: 220px;
  padding: 24px 32px;
  min-height: 100vh;
}
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}
.page-title {
  font-family: var(--font-serif);
  font-size: 22px;
  color: var(--ink);
  letter-spacing: 3px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 22px;
  background: var(--gold);
  border-radius: 2px;
}

/* ========== 卡片 ========== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 4px var(--shadow);
}
.card-title {
  font-family: var(--font-serif);
  font-size: 16px;
  color: var(--ink);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* 统计卡片 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 4px var(--shadow);
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 4px;
  height: 100%;
  background: var(--gold);
}
.stat-card.stat-danger::before { background: var(--cinnabar); }
.stat-card.stat-success::before { background: var(--jade); }
.stat-card .stat-label {
  color: var(--ink-light);
  font-size: 13px;
  margin-bottom: 8px;
}
.stat-card .stat-value {
  font-family: var(--font-serif);
  font-size: 32px;
  color: var(--ink);
  font-weight: 600;
}
.stat-card .stat-icon {
  position: absolute;
  top: 16px;
  right: 16px;
  font-size: 28px;
  opacity: 0.15;
}

/* ========== 按钮 ========== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 20px;
  border: 1px solid var(--border-dark);
  background: var(--bg-card);
  color: var(--ink);
  font-size: 13px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--font-sans);
  white-space: nowrap;
}
.btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--gold);
}
.btn-primary {
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}
.btn-primary:hover {
  background: var(--gold-dark);
  border-color: var(--gold-dark);
}
.btn-danger {
  background: var(--cinnabar);
  color: #fff;
  border-color: var(--cinnabar);
}
.btn-danger:hover {
  background: #a03525;
  border-color: #a03525;
}
.btn-success {
  background: var(--jade);
  color: #fff;
  border-color: var(--jade);
}
.btn-success:hover {
  background: #4a7a5a;
  border-color: #4a7a5a;
}
.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========== 表格 ========== */
.table-wrap {
  overflow-x: auto;
}
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.data-table thead th {
  background: var(--bg-card-hover);
  color: var(--ink);
  font-family: var(--font-serif);
  font-weight: 600;
  padding: 12px 14px;
  text-align: left;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  letter-spacing: 1px;
}
table.data-table tbody td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--ink);
}
table.data-table tbody tr:hover {
  background: var(--bg-card-hover);
}
table.data-table tbody tr:last-child td {
  border-bottom: none;
}

/* ========== 状态标签 ========== */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 2px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.badge-draft { background: #e8e0c8; color: #6b5d4f; }
.badge-published { background: rgba(200,169,81,0.2); color: var(--gold-dark); border: 1px solid var(--gold); }
.badge-locked { background: rgba(184,60,44,0.15); color: var(--cinnabar); border: 1px solid var(--cinnabar); }
.badge-completed { background: #d8d8d8; color: #888; }
.badge-pending { background: rgba(200,169,81,0.2); color: var(--gold-dark); }
.badge-confirmed { background: rgba(90,138,106,0.2); color: var(--jade); }
.badge-cancelled { background: rgba(154,141,122,0.2); color: var(--ink-lighter); }
.badge-rejected { background: rgba(184,60,44,0.15); color: var(--cinnabar); }
.badge-active { background: rgba(90,138,106,0.2); color: var(--jade); }
.badge-disabled { background: rgba(154,141,122,0.2); color: var(--ink-lighter); }

/* ========== 学员管理新增样式 ========== */
.level-select {
  padding: 4px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  background: var(--paper-dark);
  color: var(--ink);
}
.level-name-input {
  padding: 4px 8px;
  border: 1px solid transparent;
  border-radius: 4px;
  font-size: 14px;
  background: transparent;
  color: var(--ink);
  width: 140px;
}
.level-name-input:focus {
  border-color: var(--gold);
  background: var(--paper);
}

/* ========== 表单 ========== */
.form-row {
  display: flex;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.form-group {
  flex: 1;
  min-width: 200px;
}
.form-group label {
  display: block;
  color: var(--ink-light);
  margin-bottom: 6px;
  font-size: 13px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border);
  background: var(--bg-paper);
  color: var(--ink);
  font-size: 14px;
  border-radius: 2px;
  font-family: var(--font-sans);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 2px rgba(200,169,81,0.1);
}
.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

/* ========== 模态框 ========== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(44,36,22,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--gold);
  border-radius: 4px;
  width: 90%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}
.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h3 {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--ink);
  letter-spacing: 2px;
}
.modal-close {
  cursor: pointer;
  color: var(--ink-lighter);
  font-size: 22px;
  line-height: 1;
}
.modal-close:hover { color: var(--cinnabar); }
.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-light);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
}

/* ========== 周课表视图 ========== */
.week-schedule {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 8px;
  margin-bottom: 20px;
}
.day-column {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
}
.day-header {
  padding: 10px 8px;
  text-align: center;
  background: var(--bg-card-hover);
  border-bottom: 1px solid var(--border);
}
.day-header .day-name {
  font-family: var(--font-serif);
  font-size: 15px;
  color: var(--ink);
  font-weight: 600;
}
.day-header .day-date {
  font-size: 11px;
  color: var(--ink-lighter);
  margin-top: 2px;
}
.day-slots {
  padding: 6px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.slot-card {
  padding: 10px 8px;
  border: 1px solid var(--border-light);
  border-radius: 3px;
  background: var(--bg-paper);
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}
.slot-card:hover {
  border-color: var(--gold);
  background: var(--bg-card-hover);
}
.slot-card.slot-locked {
  border-color: var(--cinnabar);
  background: rgba(184,60,44,0.05);
}
.slot-card.slot-draft {
  opacity: 0.6;
}
.slot-time {
  font-family: var(--font-serif);
  font-size: 12px;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 4px;
}
.slot-label {
  font-size: 10px;
  color: var(--ink-lighter);
  margin-bottom: 4px;
}
.slot-capacity {
  font-size: 11px;
  color: var(--ink-light);
}
.slot-capacity .full {
  color: var(--cinnabar);
  font-weight: 600;
}
.slot-status-icon {
  position: absolute;
  top: 4px;
  right: 4px;
  font-size: 10px;
}

/* ========== 工具栏 ========== */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar .spacer { flex: 1; }
.toolbar .search-input {
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 2px;
  font-size: 13px;
  width: 220px;
  color: var(--ink);
}
.toolbar .search-input:focus {
  outline: none;
  border-color: var(--gold);
}
.toolbar select {
  padding: 8px 14px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  border-radius: 2px;
  font-size: 13px;
  color: var(--ink);
}

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-lighter);
}
.empty-state .empty-icon {
  font-size: 48px;
  margin-bottom: 16px;
  opacity: 0.3;
}
.empty-state p {
  font-size: 14px;
  margin-bottom: 8px;
}

/* ========== 消息提示 ========== */
.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  padding: 12px 24px;
  border-radius: 2px;
  font-size: 14px;
  z-index: 2000;
  animation: slideIn 0.3s ease;
  box-shadow: 0 4px 16px var(--shadow-strong);
}
.toast-success { background: var(--jade); color: #fff; }
.toast-error { background: var(--cinnabar); color: #fff; }
.toast-info { background: var(--gold-dark); color: #fff; }
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ========== 趋势图 ========== */
.trend-chart {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 120px;
  padding: 16px 0;
}
.trend-bar-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.trend-bar {
  width: 100%;
  max-width: 40px;
  background: linear-gradient(to top, var(--gold-dark), var(--gold));
  border-radius: 2px 2px 0 0;
  min-height: 2px;
  transition: height 0.3s;
}
.trend-bar-label {
  font-size: 10px;
  color: var(--ink-lighter);
}

/* ========== 菊花装饰 ========== */
.chrysanthemum-deco {
  position: absolute;
  pointer-events: none;
  opacity: 0.05;
}

/* 分隔线 */
.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, var(--border), transparent);
  margin: 20px 0;
}

/* loading */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(245,240,225,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
}
.loading-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

/* 响应式 */
@media (max-width: 768px) {
  .sidebar { width: 60px; }
  .sidebar-header h2, .sidebar-header p,
  .nav-item span:not(.nav-icon), .nav-badge,
  .sidebar-footer .admin-name, .sidebar-footer .btn-logout { display: none; }
  .main-content { margin-left: 60px; padding: 16px; }
  .week-schedule { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ========== 围棋题库管理页样式 ========== */

/* 总览卡片网格 */
.quiz-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.quiz-stat-card {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
}
.quiz-stat-card:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}
.quiz-stat-card.active {
  border-color: var(--gold);
  background: rgba(184, 134, 11, 0.1);
}
.quiz-stat-card.total {
  background: linear-gradient(135deg, var(--gold), #d4a017);
  color: var(--paper);
}
.quiz-stat-icon {
  font-size: 24px;
  font-family: serif;
  font-weight: bold;
  margin-bottom: 4px;
}
.quiz-stat-label {
  font-size: 12px;
  color: var(--ink-lighter);
  margin-bottom: 4px;
}
.quiz-stat-card.total .quiz-stat-label {
  color: rgba(245, 240, 225, 0.85);
}
.quiz-stat-value {
  font-size: 28px;
  font-weight: bold;
  color: var(--ink);
}
.quiz-stat-card.total .quiz-stat-value {
  color: var(--paper);
}

/* 难度分布条 */
.quiz-diff-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.quiz-diff-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 14px;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s;
  min-width: 100px;
}
.quiz-diff-item:hover {
  border-color: var(--gold);
}
.quiz-diff-item.active {
  border-color: var(--gold);
  background: rgba(184, 134, 11, 0.12);
}
.quiz-diff-item .stars {
  font-size: 14px;
  color: var(--gold);
  margin-bottom: 4px;
}
.quiz-diff-item .count {
  font-size: 12px;
  color: var(--ink-lighter);
}

/* 矩阵表格 */
.quiz-matrix-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.quiz-matrix-table th,
.quiz-matrix-table td {
  padding: 8px 12px;
  text-align: center;
  border-bottom: 1px solid var(--border);
}
.quiz-matrix-table th {
  background: var(--paper);
  font-weight: 600;
  color: var(--ink);
}
.quiz-matrix-table td.zero {
  color: var(--ink-lighter);
  opacity: 0.4;
}
.quiz-matrix-table tr:hover td {
  background: rgba(184, 134, 11, 0.05);
}

/* 筛选条 */
.quiz-filters {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}
.quiz-filters select,
.quiz-filters input {
  padding: 6px 10px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--paper);
  font-size: 14px;
  color: var(--ink);
}
.quiz-filters select:focus,
.quiz-filters input:focus {
  outline: none;
  border-color: var(--gold);
}

/* 题目列表表格 */
.quiz-list-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.quiz-list-table th,
.quiz-list-table td {
  padding: 8px 10px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.quiz-list-table th {
  background: var(--paper);
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}
.quiz-list-table td.ellipsis {
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.quiz-list-table .stars {
  color: var(--gold);
}
.quiz-list-table tr:hover td {
  background: rgba(184, 134, 11, 0.05);
}

/* 小按钮 */
.btn-sm {
  padding: 3px 8px;
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--paper);
  cursor: pointer;
  margin-right: 4px;
  color: var(--ink);
}
.btn-sm:hover {
  border-color: var(--gold);
  background: rgba(184, 134, 11, 0.08);
}
.btn-sm.btn-danger {
  color: var(--vermillion);
}
.btn-sm.btn-danger:hover {
  background: rgba(139, 58, 43, 0.1);
  border-color: var(--vermillion);
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}
.tag-green {
  background: rgba(74, 124, 89, 0.15);
  color: var(--jade);
}
.tag-gray {
  background: rgba(0,0,0,0.08);
  color: var(--ink-lighter);
}

/* 分页 */
.quiz-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-lighter);
}
.quiz-pagination .btn-sm:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* 文件夹导入区域 */
.quiz-import-folder {
  border: 2px dashed var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: 16px;
}
.quiz-import-folder:hover {
  border-color: var(--gold);
  background: rgba(200, 169, 81, 0.05);
}
.quiz-import-folder.has-files {
  border-style: solid;
  border-color: var(--jade);
  background: rgba(90, 138, 106, 0.05);
  cursor: default;
}

/* 导入预览卡片组 */
.quiz-import-groups {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 16px;
}
.quiz-import-group-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: 8px;
  padding: 16px;
}
.quiz-import-group-header {
  display: flex;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-light);
}
.quiz-import-group-header .form-group {
  margin-bottom: 0;
}

/* 子分类分组 */
.quiz-import-subcat {
  margin-bottom: 10px;
  padding-left: 4px;
}
.quiz-import-subcat-name {
  font-size: 13px;
  color: var(--ink);
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.quiz-import-subcat-name::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--gold);
  border-radius: 50%;
}
.quiz-import-diff-bars {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding-left: 12px;
}
.quiz-import-diff-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 10px;
  border-radius: 12px;
  background: rgba(200, 169, 81, 0.08);
  font-size: 12px;
}
.quiz-import-diff-item .stars {
  color: var(--gold);
  font-size: 11px;
  letter-spacing: -1px;
}
.quiz-import-diff-item .count {
  color: var(--ink-light);
  font-weight: 600;
}

/* 导入结果 */
.quiz-import-result {
  padding: 12px 16px;
  border-radius: 6px;
  margin: 12px 0;
  font-size: 13px;
}
.quiz-import-result.success {
  background: rgba(74, 124, 89, 0.1);
  border: 1px solid rgba(74, 124, 89, 0.3);
  color: var(--jade);
}
.quiz-import-result.error {
  background: rgba(139, 58, 43, 0.1);
  border: 1px solid rgba(139, 58, 43, 0.3);
  color: var(--vermillion);
}
.quiz-import-result ul {
  margin-top: 4px;
  padding-left: 20px;
}

/* ========== 试卷管理样式 ========== */
.paper-list {}
.paper-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--border-tertiary);
}
.paper-item:last-child { border-bottom: none; }
.paper-info { flex: 1; }
.paper-name {
  font-size: 14px; font-weight: 600; color: var(--ink);
  display: flex; align-items: center; gap: 8px; margin-bottom: 4px;
}
.paper-type-badge {
  font-size: 11px; padding: 1px 8px; border-radius: 10px; font-weight: 400;
}
.paper-type-badge.type-fixed { background: var(--blue-100); color: var(--blue-700); }
.paper-type-badge.type-pool { background: var(--amber-100); color: var(--amber-700); }
.paper-status-badge {
  font-size: 11px; padding: 1px 8px; border-radius: 10px; font-weight: 400;
}
.paper-status-badge.status-published { background: var(--green-100); color: var(--green-700); }
.paper-status-badge.status-draft { background: var(--gray-200); color: var(--gray-600); }
.paper-lb-badge {
  font-size: 11px; padding: 1px 8px; border-radius: 10px;
  background: var(--coral-100); color: var(--coral-600);
}
.paper-meta { font-size: 12px; color: var(--ink-lighter); }
.paper-actions { display: flex; gap: 6px; }

/* 选题编辑器左右分栏 */
.paper-editor-layout {
  display: flex; gap: 16px; min-height: 400px; margin-top: 12px;
}
.paper-left-panel, .paper-right-panel {
  flex: 1; border: 1px solid var(--border-tertiary); border-radius: var(--border-radius-lg);
  display: flex; flex-direction: column; overflow: hidden;
}
.panel-header {
  padding: 10px 14px; font-size: 13px; font-weight: 600; color: var(--ink);
  background: var(--bg-secondary); border-bottom: 1px solid var(--border-tertiary);
}
.panel-filter {
  padding: 8px 10px; display: flex; gap: 6px; flex-wrap: wrap;
  border-bottom: 1px solid var(--border-tertiary);
}
.panel-filter input, .panel-filter select {
  font-size: 12px; padding: 4px 6px; border-radius: 4px;
  border: 1px solid var(--border-secondary);
}
.panel-list {
  flex: 1; overflow-y: auto; padding: 4px 0;
}
.panel-list-item {
  display: flex; align-items: center; gap: 8px; padding: 6px 14px;
  cursor: pointer; font-size: 12px; border-bottom: 1px solid var(--border-tertiary);
  transition: background 0.15s;
}
.panel-list-item:hover { background: var(--bg-secondary); }
.panel-list-item.selected { background: var(--blue-50); }
.panel-list-item .item-order {
  width: 20px; text-align: center; font-weight: 600; color: var(--ink-lighter);
}
.panel-list-item .item-board {
  padding: 1px 6px; border-radius: 4px; font-size: 11px;
  background: var(--purple-100); color: var(--purple-700);
}
.panel-list-item .item-cat {
  padding: 1px 6px; border-radius: 4px; font-size: 11px;
  background: var(--teal-100); color: var(--teal-700);
}
.panel-list-item .item-diff {
  font-size: 11px; color: var(--amber-600); letter-spacing: 1px;
}
.panel-list-item .item-text {
  flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
  color: var(--ink);
}

/* 抽题池编辑器 */
.pool-editor {}
.pool-item {
  display: flex; align-items: center; gap: 8px; padding: 10px 14px;
  border: 1px solid var(--border-tertiary); border-radius: 8px;
  margin-bottom: 8px; background: var(--bg-secondary); flex-wrap: wrap;
}
.pool-label {
  font-size: 12px; font-weight: 600; color: var(--amber-600);
  min-width: 30px;
}
.pool-avail {
  font-size: 11px; color: var(--ink-lighter);
}

/* 按钮小号 */
.btn-sm {
  font-size: 11px; padding: 3px 10px;
}
.btn-danger {
  background: var(--coral-100) !important; color: var(--coral-600) !important;
  border-color: var(--coral-200) !important;
}
.btn-danger:hover { background: var(--coral-200) !important; }

.error-msg {
  padding: 10px 14px; background: var(--coral-50); color: var(--coral-700);
  border-radius: 8px; font-size: 13px; border: 1px solid var(--coral-200);
}
.empty-state {
  text-align: center; padding: 32px 20px; color: var(--ink-lighter); font-size: 13px;
}

/* 编辑弹窗 */
.quiz-modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}
.quiz-modal {
  background: var(--paper);
  border-radius: 8px;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}
.quiz-modal-title {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.quiz-modal-close {
  cursor: pointer;
  font-size: 24px;
  color: var(--ink-lighter);
  line-height: 1;
}
.quiz-modal-close:hover {
  color: var(--vermillion);
}
.quiz-modal-body {
  padding: 20px;
}
.quiz-modal-actions {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* 空状态 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}

/* ============================================
   出题编辑器 样式
   ============================================ */

.quiz-editor-layout {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
}

.quiz-editor-board {
  flex: 0 0 auto;
  min-width: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.quiz-editor-panel {
  flex: 1;
  min-width: 280px;
  max-width: 380px;
}

.quiz-editor-canvas {
  display: block;
  width: clamp(300px, 45vw, 520px);
  height: clamp(300px, 45vw, 520px);
  border-radius: 6px;
  box-shadow: 0 4px 16px rgba(139, 58, 43, 0.15);
  cursor: crosshair;
}

/* 路数选择器 */
.size-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.size-label {
  font-size: 13px;
  color: var(--ink-lighter);
  margin-right: 4px;
}
.size-opt {
  padding: 5px 16px;
  font-size: 13px;
  color: var(--ink);
  background: #f5f0e1;
  border: 1px solid #c49a52;
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s;
}
.size-opt:hover {
  background: #d4a574;
  color: #fff;
  border-color: #b8860b;
}
.size-opt.active {
  background: linear-gradient(180deg, #d4a574, #b8860b);
  color: #fff;
  border-color: #8b6914;
}

/* 工具条 — 带文字标签的按钮 */
.quiz-tool-bar {
  width: 100%;
  max-width: 520px;
  display: flex;
  gap: 6px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.quiz-tool-bar .tool-group {
  display: flex;
  align-items: center;
  gap: 3px;
  background: #faf6ee;
  border: 1px solid #d4c4a4;
  border-radius: 8px;
  padding: 3px 6px;
}

.quiz-tool-bar .tool-btn {
  height: 34px;
  border: 1px solid transparent;
  border-radius: 6px;
  background: #f5f0e1;
  color: var(--ink);
  font-size: 13px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  padding: 0 10px;
  white-space: nowrap;
}
.quiz-tool-bar .tool-btn:hover {
  background: #e8dcc8;
  border-color: #c49a52;
}
.quiz-tool-bar .tool-btn.active {
  background: #3c2415;
  color: #f5f0e1;
  border-color: #3c2415;
  box-shadow: 0 2px 6px rgba(60, 36, 21, 0.3);
}
.quiz-tool-bar .tool-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.quiz-tool-bar .tool-btn.stone-black.active { background: #1a1a1a; color: #fff; border-color: #000; }
.quiz-tool-bar .tool-btn.stone-white.active { background: #eee; color: #333; border-color: #999; }
.quiz-tool-bar .tool-btn.label-auto.active { background: #27ae60; color: #fff; border-color: #1e8449; }
.quiz-tool-bar .tool-btn.turn-btn { font-size: 12px; min-width: 52px; }

/* 导航栏 — 和棋盘风格统一的按钮 */
.quiz-nav-bar {
  width: 100%;
  max-width: 520px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  margin-top: 14px;
  flex-wrap: nowrap;
}

.quiz-nav-bar .nav-btn {
  width: 40px;
  height: 40px;
  border: 1px solid #8b6914;
  border-radius: 50%;
  background: linear-gradient(180deg, #d4a574 0%, #c49a52 100%);
  color: #3c2415;
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  flex-shrink: 0;
  transition: all 0.15s;
}
.quiz-nav-bar .nav-btn:hover {
  background: linear-gradient(180deg, #c49a52 0%, #b88a3c 100%);
}
.quiz-nav-bar .nav-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  background: #c8b898;
  border-color: #b8a080;
}

.quiz-nav-bar .nav-counter {
  font-size: 14px;
  font-weight: 500;
  color: #3c2415;
  min-width: 80px;
  text-align: center;
  flex-shrink: 0;
}

/* 标记显示开关 */
.quiz-toggle-bar {
  width: 100%;
  max-width: 520px;
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 10px;
  padding: 8px 0;
}

.quiz-toggle-bar .toggle-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: #5a4a38;
  cursor: pointer;
  user-select: none;
}
.quiz-toggle-bar .toggle-label input[type="checkbox"] {
  width: 15px;
  height: 15px;
  accent-color: #b8860b;
}

/* 标记状态 — 5 列 */
.marker-status {
  display: flex;
  gap: 8px;
  padding: 8px 0;
  flex-wrap: wrap;
}
.marker-status-item {
  font-size: 15px;
  font-weight: bold;
  width: 44px;
  text-align: center;
}

/* 验证错误 */
.validation-errors {
  margin-top: 16px;
  padding: 12px 16px;
  background: #fdf0ed;
  border: 1px solid #f5c6cb;
  border-radius: 6px;
  color: #8b3a2b;
  font-size: 13px;
  line-height: 1.8;
}

/* ========== 棋谱管理 - 文件选择区域 ========== */
.file-drop-zone {
  border: 2px dashed var(--border, #c8b898);
  border-radius: 8px;
  padding: 32px 20px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--paper, #f5f0e1);
}
.file-drop-zone:hover {
  border-color: var(--gold, #b8860b);
  background: rgba(200,169,81,0.05);
}
.file-drop-icon {
  font-size: 36px;
  margin-bottom: 8px;
  opacity: 0.6;
}
.file-drop-text {
  font-size: 14px;
  color: var(--ink, #3a3128);
  font-weight: 500;
}
.file-drop-hint {
  font-size: 12px;
  color: var(--ink-lighter, #9a8e7a);
  margin-top: 4px;
}