:root {
  --primary-color: #3b82f6;
  --primary-dark: #1d4ed8;
  --secondary-color: #6c757d;
  --success-color: #56ab2f;
  --success-dark: #a8e063;
  --danger-color: #eb3349;
  --danger-dark: #f45c43;
  --header-bg: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  --header-bg-hover: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
  --success-bg: linear-gradient(135deg, #56ab2f 0%, #a8e063 100%);
  --success-bg-hover: linear-gradient(135deg, #4a9a28 0%, #96d658 100%);
  --danger-bg: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
  --danger-bg-hover: linear-gradient(135deg, #d62c42 0%, #e0553c 100%);
  --border-color: #e1e8ed;
  --text-color: #333;
  --bg-color: #f5f5f5;
}

.theme-spring {
  --primary-color: #4CAF50;
  --primary-dark: #45a049;
  --secondary-color: #8BC34A;
  --success-color: #8BC34A;
  --success-dark: #689F38;
  --danger-color: #FF5722;
  --danger-dark: #E64A19;
  --header-bg: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
  --header-bg-hover: linear-gradient(135deg, #43a047 0%, #3e8f42 100%);
  --success-bg: linear-gradient(135deg, #8BC34A 0%, #689F38 100%);
  --success-bg-hover: linear-gradient(135deg, #7cb334 0%, #5a8a2d 100%);
  --danger-bg: linear-gradient(135deg, #FF5722 0%, #E64A19 100%);
  --danger-bg-hover: linear-gradient(135deg, #F4511E 0%, #D84315 100%);
}

.theme-summer {
  --primary-color: #2196F3;
  --primary-dark: #1976D2;
  --secondary-color: #0288D1;
  --success-color: #00BCD4;
  --success-dark: #0097A7;
  --danger-color: #FF6B6B;
  --danger-dark: #E55D87;
  --header-bg: linear-gradient(135deg, #2196F3 0%, #1976D2 100%);
  --header-bg-hover: linear-gradient(135deg, #1e85d0 0%, #1668c1 100%);
  --success-bg: linear-gradient(135deg, #00BCD4 0%, #0097A7 100%);
  --success-bg-hover: linear-gradient(135deg, #00a5c0 0%, #00858f 100%);
  --danger-bg: linear-gradient(135deg, #FF6B6B 0%, #E55D87 100%);
  --danger-bg-hover: linear-gradient(135deg, #E55D76 0%, #D14A6E 100%);
}

.theme-autumn {
  --primary-color: #FF9800;
  --primary-dark: #F57C00;
  --secondary-color: #FF5722;
  --success-color: #FF9800;
  --success-dark: #F57C00;
  --danger-color: #8B4513;
  --danger-dark: #6F3700;
  --header-bg: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
  --header-bg-hover: linear-gradient(135deg, #e68d00 0%, #d97100 100%);
  --success-bg: linear-gradient(135deg, #FF9800 0%, #F57C00 100%);
  --success-bg-hover: linear-gradient(135deg, #e68d00 0%, #d97100 100%);
  --danger-bg: linear-gradient(135deg, #8B4513 0%, #6F3700 100%);
  --danger-bg-hover: linear-gradient(135deg, #7a3c11 0%, #5f3200 100%);
}

.theme-winter {
  --primary-color: #607D8B;
  --primary-dark: #4A6572;
  --secondary-color: #48C9B0;
  --success-color: #00D4FF;
  --success-dark: #00A3CC;
  --danger-color: #FF5252;
  --danger-dark: #E04B4B;
  --header-bg: linear-gradient(135deg, #607D8B 0%, #4A6572 100%);
  --header-bg-hover: linear-gradient(135deg, #556c7a 0%, #3f5865 100%);
  --success-bg: linear-gradient(135deg, #00D4FF 0%, #00A3CC 100%);
  --success-bg-hover: linear-gradient(135deg, #00b8e8 0%, #0094b8 100%);
  --danger-bg: linear-gradient(135deg, #FF5252 0%, #E04B4B 100%);
  --danger-bg-hover: linear-gradient(135deg, #E04B42 0%, #C93A3A 100%);
}

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

body {
  font-family: 'Microsoft YaHei', Arial, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
}

.page {
  display: none;
}

.page.active {
  display: block;
}

.login-container, .register-container, .profile-container {
  max-width: 420px;
  margin: 80px auto;
  padding: 40px;
  background: white;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  border: 1px solid #e1e8ed;
}

.login-container h1, .register-container h1, .profile-container h1 {
  text-align: center;
  margin-bottom: 30px;
  color: #2c3e50;
  font-size: 28px;
  font-weight: 700;
}

.server-status {
  padding: 10px;
  margin-bottom: 20px;
  border-radius: 4px;
  text-align: center;
  font-size: 14px;
}

.server-status.online {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.server-status.offline {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.server-status.checking {
  background-color: #fff3cd;
  color: #856404;
  border: 1px solid #ffeaa7;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: bold;
}

.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e1e8ed;
  border-radius: 8px;
  font-size: 14px;
  transition: all 0.3s ease;
  font-family: inherit;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.btn {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--header-bg);
  color: white;
  width: 100%;
}

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

.btn-secondary {
  background-color: var(--secondary-color);
  color: white;
}

.btn-secondary:hover {
  background-color: var(--primary-dark);
}

.btn-success {
  background: var(--success-bg);
  color: white;
}

.btn-success:hover {
  background: var(--success-bg-hover);
}

.btn-danger {
  background: var(--danger-bg);
  color: white;
}

.btn-danger:hover {
  background: var(--danger-bg-hover);
}

.register-link, .login-link {
  text-align: center;
  margin-top: 20px;
}

.register-link a, .login-link a {
  color: #3498db;
  text-decoration: none;
}

.register-link a:hover, .login-link a:hover {
  text-decoration: underline;
}

.dashboard-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.header {
  background: var(--header-bg);
  color: white;
  padding: 20px 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header h1 {
  font-size: 24px;
  font-weight: 600;
  margin: 0;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 15px;
}

.theme-selector {
  padding: 8px 12px;
  border: 2px solid white;
  border-radius: 6px;
  background-color: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 14px;
  cursor: pointer;
  outline: none;
}

.theme-selector:hover {
  background-color: rgba(255, 255, 255, 0.3);
}

.user-info span {
  font-size: 16px;
  font-weight: 500;
}

.dashboard-body {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.sidebar {
  background-color: #2c3e50;
  width: 250px;
  min-width: 250px;
  padding: 20px 0;
  overflow-y: auto;
}

.sidebar ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar li {
  padding: 15px 20px;
  cursor: pointer;
  color: #ecf0f1;
  transition: all 0.3s ease;
  border-left: 3px solid transparent;
}

.sidebar li:hover, .sidebar li.active {
  background-color: #34495e;
  border-left-color: #3b82f6;
}

.sidebar li i {
  margin-right: 10px;
  width: 20px;
}

.content {
  flex: 1;
  padding: 30px;
  overflow-y: auto;
  background-color: #f5f7fa;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 25px;
  margin-bottom: 25px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid #e1e8ed;
}

.card h2 {
  margin-bottom: 20px;
  color: #2c3e50;
  font-size: 20px;
  font-weight: 600;
  padding-bottom: 15px;
  border-bottom: 2px solid #f0f0f0;
}

.card p {
  color: #5a6c7d;
  line-height: 1.6;
  margin: 10px 0;
}

.form-row {
  display: flex;
  gap: 20px;
  margin-bottom: 20px;
}

.form-row .form-group {
  flex: 1;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

table th, table td {
  padding: 16px;
  text-align: left;
  border-bottom: 1px solid #e1e8ed;
}

table th {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.5px;
}

table tr:hover {
  background-color: #f8f9fa;
}

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

/* 用户管理表格优化 */
table tbody tr {
  transition: all 0.3s ease;
}

table tbody tr:hover {
  background-color: rgba(59, 130, 246, 0.05);
  transform: scale(1.01);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

table tbody tr:nth-child(even) {
  background-color: #f9f9f9;
}

table tbody tr:nth-child(even):hover {
  background-color: rgba(59, 130, 246, 0.08);
}

table td {
  transition: all 0.3s ease;
}

table td:hover {
  color: var(--primary-color);
  font-weight: 500;
}

.action-buttons {
  display: flex;
  gap: 10px;
}

.action-buttons button {
  padding: 6px 12px;
  font-size: 12px;
}

.alert {
  padding: 15px;
  margin-bottom: 20px;
  border-radius: 4px;
}

.alert-success {
  background-color: #d4edda;
  color: #155724;
  border: 1px solid #c3e6cb;
}

.alert-error {
  background-color: #f8d7da;
  color: #721c24;
  border: 1px solid #f5c6cb;
}

.alert-info {
  background-color: #d1ecf1;
  color: #0c5460;
  border: 1px solid #bee5eb;
}

.notification-item {
  padding: 15px;
  border-bottom: 1px solid #eee;
}

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

.notification-item h3 {
  margin-bottom: 10px;
  color: #2c3e50;
}

.notification-item p {
  color: #7f8c8d;
  font-size: 14px;
}

.notification-item .time {
  color: #95a5a6;
  font-size: 12px;
  margin-top: 5px;
}

.stat-card {
  background: white;
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid #e1e8ed;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.stat-card h3 {
  font-size: 32px;
  color: var(--primary-color);
  margin-bottom: 10px;
  font-weight: 700;
}

.school-management-page .stat-card {
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid #e8e8e8;
  transition: all 0.2s ease;
}

.school-management-page .stat-card::before {
  display: none;
}

.school-management-page .stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-color);
}

.school-management-page .stat-card h3 {
  font-size: 28px;
  color: var(--primary-color);
  margin-bottom: 8px;
  font-weight: 700;
}

.chart-container {
  background: white;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
  margin-bottom: 30px;
  min-height: 300px;
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
  max-height: 220px;
}

.stat-card p {
  color: #7f8c8d;
  font-size: 14px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-card h3 {
  font-size: 32px;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 25px;
  margin-bottom: 30px;
}

.statistics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

.statistics-grid .stat-card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
  min-height: 280px;
  display: flex;
  flex-direction: column;
}

.statistics-grid .stat-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: #56ab2f;
  margin-bottom: 15px;
  text-align: center;
}

.stat-card h3 {
  font-size: 32px;
  font-weight: 700;
  color: #56ab2f;
  margin-bottom: 10px;
}

.charts-container {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin: 20px 0;
}

.chart-card {
  padding: 20px;
  min-height: 280px;
}

.chart-card h3 {
  margin-bottom: 15px;
  color: var(--primary-color);
  font-size: 16px;
}

.chart-wrapper {
  height: 200px;
  position: relative;
}

@media (max-width: 768px) {
  .charts-container {
    grid-template-columns: 1fr;
  }
}

#gender-chart,
#special-groups-chart,
#urban-rural-chart,
#school-type-chart {
  min-height: 220px;
}

.grade-chart-card {
  grid-column: span 2;
  min-height: 300px;
  max-height: 350px;
}

.export-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 20px;
}

.export-buttons .btn {
  flex: 1;
  min-width: 150px;
}

.report-table {
  overflow-x: auto;
}

.report-table table {
  min-width: 1000px;
  border-collapse: collapse;
  box-shadow: 0 2px 8px rgba(0, 0, 0.1);
  border-radius: 8px;
  overflow: hidden;
}

.report-table th {
  text-align: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  font-weight: 600;
  padding: 18px 20px;
  font-size: 15px;
  border: none;
  text-transform: uppercase;
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  position: relative;
}

.report-table th::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
}

.report-table th:hover {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.report-table td {
  text-align: center;
  padding: 12px 15px;
  border-bottom: 1px solid #e1e8ed;
  font-size: 14px;
}

.report-table tr:hover td {
  background-color: rgba(59, 130, 246, 0.05);
}

.report-table th:first-child, .report-table td:first-child {
  text-align: left;
  position: sticky;
  left: 0;
  background-color: #f8f9fa;
  z-index: 1;
  font-weight: 600;
  color: var(--primary-color);
}

.report-table td:first-child {
  background-color: white;
}

.report-summary {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: white;
  font-weight: bold;
  padding: 15px;
  text-align: center;
  border-radius: 4px;
}

@media (max-width: 768px) {
  /* 基础样式优化 */
  body {
    font-size: 16px;
    line-height: 1.5;
  }

  /* 登录、注册页面优化 */
  .login-container, .register-container, .profile-container {
    max-width: 90%;
    margin: 40px auto;
    padding: 20px;
  }

  .login-container h1, .register-container h1, .profile-container h1 {
    font-size: 24px;
    margin-bottom: 20px;
  }

  /* 仪表盘容器优化 */
  .dashboard-container {
    flex-direction: column;
  }

  /* 头部优化 */
  .header {
    padding: 15px 20px;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start;
  }

  .header h1 {
    font-size: 20px;
  }

  .user-info {
    width: 100%;
    justify-content: space-between;
  }

  /* 侧边栏优化 */
  .sidebar {
    width: 100%;
    min-height: auto;
    max-height: 200px;
    overflow-x: auto;
    overflow-y: hidden;
  }

  .sidebar ul {
    display: flex;
    gap: 10px;
  }

  .sidebar li {
    white-space: nowrap;
    border-left: none;
    border-bottom: 3px solid transparent;
    padding: 10px 15px;
  }

  .sidebar li:hover, .sidebar li.active {
    border-left-color: transparent;
    border-bottom-color: #3b82f6;
  }

  /* 内容区域优化 */
  .content {
    padding: 20px;
  }

  /* 卡片样式优化 */
  .card {
    padding: 20px;
    margin-bottom: 20px;
  }

  .card h2 {
    font-size: 18px;
    margin-bottom: 15px;
  }

  /* 统计卡片网格优化 */
  .stat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .stat-card h3 {
    font-size: 24px;
  }

  .stat-card p {
    font-size: 12px;
  }

  /* 统计图表网格优化 */
  .statistics-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }

  .statistics-grid .stat-card {
    padding: 15px;
    min-height: 220px;
  }

  /* 图表容器优化 */
  .chart-container {
    padding: 15px;
    min-height: 200px;
  }

  .chart-container canvas {
    max-height: 180px;
  }

  /* 年级图表卡片优化 */
  .grade-chart-card {
    grid-column: span 1;
    min-height: 250px;
  }

  /* 导出按钮优化 */
  .export-buttons {
    flex-direction: column;
    gap: 10px;
  }

  .export-buttons .btn {
    width: 100%;
    min-width: auto;
    padding: 12px;
    font-size: 14px;
  }

  /* 表单优化 */
  .form-row {
    flex-direction: column;
    gap: 15px;
  }

  .form-group {
    margin-bottom: 15px;
  }

  .form-group input, .form-group select, .form-group textarea {
    padding: 14px 16px;
    font-size: 16px;
    min-height: 48px;
  }

  /* 按钮优化 */
  .btn {
    padding: 14px 24px;
    font-size: 16px;
    min-height: 48px;
  }

  /* 表格优化 */
  table {
    font-size: 14px;
  }

  table th, table td {
    padding: 12px;
  }

  .report-table table {
    min-width: 600px;
  }

  /* 模态框优化 */
  .modal-content {
    width: 95%;
    margin: 10% auto;
  }

  .modal-body {
    padding: 20px;
    max-height: 70vh;
  }

  /* 数据上报页面优化 */
  .form-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

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

  .card-actions {
    flex-direction: column;
    width: 100%;
  }

  .card-actions .btn {
    width: 100%;
  }

  .form-actions {
    justify-content: center;
  }

  .form-actions .btn {
    width: 100%;
    min-width: 150px;
  }

  /* 年级表单优化 */
  .grade-form {
    padding: 15px;
    margin-bottom: 15px;
  }

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

  /* 响应式表格优化 */
  .responsive-table {
    overflow-x: auto;
    margin-bottom: 20px;
  }

  /* 移除不必要的阴影和边框，提升移动端性能 */
  .card, .stat-card, .statistics-grid .stat-card {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  }

  /* 确保触摸目标大小至少为48x48像素 */
  a, button, input[type="submit"], input[type="button"], input[type="reset"], select {
    min-height: 48px;
    min-width: 48px;
  }

  /* 优化移动端滚动体验 */
  ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }

  ::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
  }

  ::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 3px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .statistics-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .grade-chart-card {
    grid-column: span 2;
  }
}

@media (min-width: 1025px) {
  .statistics-grid{
    grid-template-columns: repeat(4, 1fr);
  }

  .grade-chart-card{
    grid-column: span 4;
  }
}

.submission-stats-card {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.school-management-page .submission-stats-card {
  background: linear-gradient(135deg, #ffffff 0%, #f0f4ff 100%);
  border-radius: 16px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 8px 25px rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.15);
  position: relative;
  overflow: hidden;
}

.school-management-page .submission-stats-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: linear-gradient(90deg, #3b82f6, #1d4ed8, #60a5fa);
}

.submission-overview {
  display: flex;
  gap: 30px;
  margin-bottom: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.02);
  border-radius: 8px;
}

.school-management-page .submission-overview {
  display: flex;
  gap: 30px;
  margin-bottom: 20px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 12px;
}

.submission-stat-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 15px;
  border-radius: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.school-management-page .submission-stat-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 15px;
  padding: 20px;
  border-radius: 12px;
  transition: all 0.3s ease;
  cursor: default;
}

.submission-stat-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.school-management-page .submission-stat-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.submission-stat-item.submitted {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
}

.school-management-page .submission-stat-item.submitted {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  border: 1px solid #28a745;
}

.submission-stat-item.unsubmitted {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
}

.school-management-page .submission-stat-item.unsubmitted {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
  border: 1px solid #ffc107;
}

.stat-icon {
  font-size: 32px;
  line-height: 1;
}

.school-management-page .stat-icon {
  font-size: 36px;
  line-height: 1;
}

.stat-info {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.stat-number {
  font-size: 28px;
  font-weight: 700;
  color: #333;
  line-height: 1.2;
}

.school-management-page .stat-number {
  font-size: 32px;
  font-weight: 700;
  color: #333;
  line-height: 1.2;
}

.submission-stat-item.submitted .stat-number {
  color: #155724;
}

.submission-stat-item.unsubmitted .stat-number {
  color: #856404;
}

.stat-label {
  font-size: 13px;
  color: #555;
  font-weight: 500;
}

.submission-detail {
  display: flex;
  gap: 15px;
}

.school-management-page .submission-detail {
  display: flex;
  gap: 20px;
  padding: 15px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 10px;
}

.detail-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 15px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.8);
}

.school-management-page .detail-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 15px;
  border-radius: 8px;
  background: white;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.detail-item.primary {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
}

.school-management-page .detail-item.primary {
  background: white;
  border-left: 4px solid #4a6cf7;
}

.detail-item.junior {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
}

.school-management-page .detail-item.junior {
  background: white;
  border-left: 4px solid #28a745;
}

.detail-icon {
  font-size: 20px;
  line-height: 1;
}

.school-management-page .detail-icon {
  font-size: 24px;
  line-height: 1;
}

.detail-label {
  font-size: 13px;
  color: #666;
  font-weight: 500;
  flex: 1;
}

.school-management-page .detail-label {
  font-size: 14px;
  color: #666;
  font-weight: 500;
  flex: 1;
}

.detail-number {
  font-size: 18px;
  font-weight: 700;
  color: #333;
  min-width: 30px;
  text-align: right;
}

.school-management-page .detail-number {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary-color);
  min-width: 30px;
  text-align: right;
}

@media (max-width: 768px) {
  .submission-overview {
    flex-direction: column;
    gap: 15px;
  }
  
  .submission-detail {
    flex-direction: column;
    gap: 15px;
  }
  
  .stat-number {
    font-size: 24px;
  }
  
  .detail-number {
    font-size: 18px;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-item {
    width: 100%;
  }
  
  .filter-item select {
    width: 100%;
  }
}

.submission-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.submission-badge.submitted {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  color: #155724;
  border: 1px solid #28a745;
}

.submission-badge.unsubmitted {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeeba 100%);
  color: #856404;
  border: 1px solid #ffc107;
}

.filter-bar {
  background: #f8f9fa;
  padding: 15px;
  border-radius: 8px;
  margin-bottom: 15px;
}

.filter-item {
  display: flex;
  align-items: center;
}

.filter-item label {
  font-size: 14px;
  color: #495057;
}

.filter-item select {
  border: 1px solid #ced4da;
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 14px;
  background: white;
  cursor: pointer;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.filter-item select:hover {
  border-color: #80bdff;
}

.filter-item select:focus {
  outline: none;
  border-color: #4a6cf7;
  box-shadow: 0 0 0 3px rgba(74, 108, 247, 0.1);
}

.action-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}

.action-badge.action-add {
  background: linear-gradient(135deg, #d4edda 0%, #c3e6cb 100%);
  color: #155724;
  border: 1px solid #28a745;
}

.action-badge.action-delete {
  background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
  color: #721c24;
  border: 1px solid #dc3545;
}

.action-badge.action-edit {
  background: linear-gradient(135deg, #fff3cd 0%, #ffeeba 100%);
  color: #856404;
  border: 1px solid #ffc107;
}

.action-badge.action-other {
  background: linear-gradient(135deg, #e2e3e5 0%, #d6d8db 100%);
  color: #383d41;
  border: 1px solid #6c757d;
}

.school-type-stats-card {
  margin-bottom: 20px;
}

.school-management-page .school-type-stats-card {
  margin-bottom: 20px;
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid #e8e8e8;
}

.school-management-page .school-type-stats-card::before {
  display: none;
}

.school-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.school-management-page .school-type-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}

.school-type-card {
  display: flex;
  align-items: center;
  padding: 16px;
  border-radius: 8px;
  background: #fafafa;
  border: 1px solid #e8e8e8;
  transition: all 0.2s ease;
}

.school-management-page .school-type-card {
  display: flex;
  align-items: center;
  padding: 16px;
  border-radius: 8px;
  background: #fafafa;
  border: 1px solid #e8e8e8;
  transition: all 0.2s ease;
}

.school-management-page .school-type-card::after {
  display: none;
}

.school-type-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-color);
}

.school-management-page .school-type-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-color);
}

.school-type-card .type-icon {
  font-size: 28px;
  margin-right: 12px;
}

.school-management-page .school-type-card .type-icon {
  font-size: 28px;
  margin-right: 12px;
}

.school-type-card .type-info {
  display: flex;
  flex-direction: column;
}

.school-type-card .type-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
}

.school-management-page .school-type-card .type-number {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-color);
}

.school-type-card .type-label {
  font-size: 13px;
  color: #666;
  margin-top: 2px;
}

.school-management-page .school-type-card .type-label {
  font-size: 13px;
  color: #666;
  margin-top: 2px;
}

.school-type-card.primary {
  background: linear-gradient(135deg, #e3f2fd 0%, #bbdefb 100%);
  border-color: #90caf9;
}

.school-type-card.primary .type-number {
  color: #1565c0;
}

.school-type-card.junior {
  background: linear-gradient(135deg, #e8f5e9 0%, #c8e6c9 100%);
  border-color: #a5d6a7;
}

.school-type-card.junior .type-number {
  color: #2e7d32;
}

.school-type-card.senior {
  background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
  border-color: #ffcc80;
}

.school-type-card.senior .type-number {
  color: #ef6c00;
}

.school-type-card.nine-year {
  background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
  border-color: #ce93d8;
}

.school-type-card.nine-year .type-number {
  color: #7b1fa2;
}

.school-type-card.complete {
  background: linear-gradient(135deg, #fce4ec 0%, #f8bbd9 100%);
  border-color: #f48fb1;
}

.school-type-card.complete .type-number {
  color: #c2185b;
}

@media (max-width: 768px) {
  .school-type-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .school-type-card {
    padding: 15px 10px;
  }
  
  .school-type-card .type-icon {
    font-size: 24px;
    margin-right: 10px;
  }
  
  .school-type-card .type-number {
    font-size: 22px;
  }
  
  .school-type-card .type-label {
    font-size: 12px;
  }
}

.area-school-stats-card {
  margin-bottom: 20px;
}

.school-management-page .area-school-stats-card {
  margin-bottom: 20px;
  background: #ffffff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
  border: 1px solid #e8e8e8;
}

.school-management-page .area-school-stats-card::before {
  display: none;
}

.area-stats-section {
  margin-top: 20px;
}

.school-management-page .area-stats-section {
  margin-top: 0;
}

.school-management-page .area-stats-grid {
  display: flex;
  gap: 30px;
}

.school-management-page .area-stats-section {
  flex: 1;
  margin-top: 0;
}

.school-management-page .urban-section,
.school-management-page .rural-section {
  background: #fafafa;
  border-radius: 10px;
  padding: 15px;
}

.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
  padding-left: 10px;
  border-left: 4px solid var(--primary-color);
}

.school-management-page .section-title {
  font-size: 15px;
  font-weight: 600;
  color: #333;
  margin-bottom: 12px;
  padding-left: 10px;
  border-left: 3px solid var(--primary-color);
}

.area-cards-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 15px;
}

.school-management-page .area-cards-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.area-school-card {
  display: flex;
  align-items: center;
  padding: 15px;
  border-radius: 10px;
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  border: 1px solid #dee2e6;
  transition: all 0.3s ease;
}

.school-management-page .area-school-card {
  display: flex;
  align-items: center;
  padding: 12px;
  border-radius: 8px;
  background: #fafafa;
  border: 1px solid #e8e8e8;
  transition: all 0.2s ease;
}

.school-management-page .area-school-card::after {
  display: none;
}

.area-school-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.school-management-page .area-school-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  border-color: var(--primary-color);
}

.school-management-page .area-school-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.area-school-card .area-icon {
  font-size: 24px;
  margin-right: 12px;
}

.school-management-page .area-school-card .area-icon {
  font-size: 28px;
  margin-right: 12px;
}

.area-school-card .area-info {
  display: flex;
  flex-direction: column;
}

.area-school-card .area-number {
  font-size: 24px;
  font-weight: 700;
  color: #333;
}

.school-management-page .area-school-card .area-number {
  font-size: 22px;
  font-weight: 700;
  color: var(--primary-color);
}

.area-school-card .area-label {
  font-size: 12px;
  color: #666;
  margin-top: 3px;
}

.school-management-page .area-school-card .area-label {
  font-size: 12px;
  color: #666;
  margin-top: 2px;
}

.area-school-card.urban-primary,
.area-school-card.urban-junior,
.area-school-card.urban-nine-year,
.area-school-card.urban-senior,
.area-school-card.rural-primary,
.area-school-card.rural-junior,
.area-school-card.rural-nine-year,
.area-school-card.rural-senior {
  background: #fafafa;
  border-color: #e8e8e8;
}

.area-school-card.urban-primary .area-number,
.area-school-card.urban-junior .area-number,
.area-school-card.urban-nine-year .area-number,
.area-school-card.urban-senior .area-number,
.area-school-card.rural-primary .area-number,
.area-school-card.rural-junior .area-number,
.area-school-card.rural-nine-year .area-number,
.area-school-card.rural-senior .area-number {
  color: var(--primary-color);
}

@media (max-width: 768px) {
  .area-cards-row {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .area-school-card {
    padding: 12px 8px;
  }
  
  .area-school-card .area-icon {
    font-size: 20px;
    margin-right: 10px;
  }
  
  .area-school-card .area-number {
    font-size: 20px;
  }
  
  .area-school-card .area-label {
    font-size: 11px;
  }
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  overflow: auto;
}

.modal.show {
  display: block;
}

.modal-content {
  background-color: white;
  margin: 5% auto;
  padding: 0;
  border-radius: 12px;
  width: 90%;
  max-width: 600px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
  from {
    transform: translateY(-50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-header {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  color: white;
  padding: 20px;
  border-radius: 12px 12px 0 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
}

.close {
  color: white;
  font-size: 28px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
}

.close:hover {
  color: #f0f0f0;
  transform: rotate(90deg);
}

.modal-body {
  padding: 25px;
  max-height: 60vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 20px 25px;
  background-color: #f8f9fa;
  border-radius: 0 0 12px 12px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.modal-footer button {
  min-width: 100px;
}

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

.card-title {
  flex: 1;
}

.card-title h2 {
  margin: 0;
  font-size: 20px;
  color: var(--primary-color);
}

.card-info {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.card-info p {
  margin: 0;
  font-size: 14px;
  color: #666;
}

.card-info .highlight {
  color: var(--primary-color);
  font-weight: 600;
}

.card-actions {
  display: flex;
  gap: 10px;
}

.grade-form {
  background: #f8f9fa;
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid #e1e8ed;
}

.grade-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 15px;
  padding-bottom: 15px;
  border-bottom: 1px solid #e1e8ed;
}

.grade-header h4 {
  margin: 0;
  font-size: 16px;
  color: var(--primary-color);
  font-weight: 600;
}

.grade-status {
  display: flex;
  align-items: center;
}

.status-badge {
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.status-submitted {
  background-color: #d4edda;
  color: #155724;
}

.status-pending {
  background-color: #fff3cd;
  color: #856404;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 15px;
  margin-bottom: 15px;
}

.form-grid .form-group {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.form-grid .form-group label {
  font-size: 13px;
  color: #666;
  margin-bottom: 3px;
}

.form-grid .form-group input {
  padding: 8px 12px;
  border: 1px solid #e1e8ed;
  border-radius: 6px;
  font-size: 14px;
  transition: all 0.3s ease;
}

.form-grid .form-group input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(86, 101, 115, 0.1);
  outline: none;
}

.form-grid .form-group input:hover {
  border-color: #c0c4cc;
}

.form-grid .modification-count {
  padding: 8px 12px;
  background: #f8f9fa;
  border: 1px solid #e1e8ed;
  border-radius: 6px;
  font-size: 14px;
  color: #666;
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  padding-top: 15px;
  border-top: 1px solid #e1e8ed;
}

.form-actions .btn {
  min-width: 120px;
}

@media (max-width: 768px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  
  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
  
  .card-actions {
    flex-direction: column;
  }
  
  .form-actions .btn {
    width: 100%;
  }
}

/* 数据总览表格样式 */
.data-overview-container {
  padding: 20px 0;
}

.data-overview-card {
  margin-bottom: 40px;
  border-radius: 12px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.1);
}

/* 表格容器 - 冻结行列需要 */
.table-container {
  overflow: auto;
  position: relative;
  max-height: 800px;
  border: 1px solid #e1e8ed;
  scroll-behavior: smooth;
  margin: 0;
  padding: 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(74, 108, 247, 0.7) #f1f1f1;
}

/* 自定义滚动条 */
.table-container::-webkit-scrollbar {
  width: 14px;
  height: 14px;
}

.table-container::-webkit-scrollbar-track {
  background: #f1f1f1;
  border-radius: 7px;
}

.table-container::-webkit-scrollbar-thumb {
  background: rgba(74, 108, 247, 0.7);
  border-radius: 7px;
  border: 3px solid #f1f1f1;
}

.table-container::-webkit-scrollbar-thumb:hover {
  background: rgba(74, 108, 247, 0.9);
}

/* 表格 - 使用border-collapse: separate让sticky生效 */
.data-overview-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 14px;
  min-width: 1200px;
  font-family: 'Microsoft YaHei', Arial, sans-serif;
}

.table-header {
  padding: 12px 8px;
  text-align: center;
  font-weight: 600;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-size: 13px;
  white-space: normal;
  word-wrap: break-word;
  min-width: 80px;
  max-width: 120px;
  line-height: 1.3;
}

.table-subheader {
  background: rgba(59, 130, 246, 0.92);
  color: white;
  padding: 10px 6px;
  text-align: center;
  font-weight: 500;
  font-size: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  white-space: normal;
  word-wrap: break-word;
  min-width: 80px;
  max-width: 100px;
  line-height: 1.3;
}

.summary-row {
  background-color: #f0f4ff;
  font-weight: 600;
}

.summary-cell {
  padding: 14px 12px;
  text-align: center;
  border: 1px solid #e1e8ed;
  color: #2c3e50;
  background-color: #f0f4ff;
  font-size: 14px;
}

.school-row {
  transition: all 0.3s ease;
}

.school-row:hover {
  background-color: rgba(74, 108, 247, 0.05);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.even-row {
  background-color: #ffffff;
}

.odd-row {
  background-color: #f9f9f9;
}

.data-cell {
  padding: 12px 14px;
  text-align: center;
  border: 1px solid #e1e8ed;
  color: #333;
  font-size: 13px;
  line-height: 1.4;
}

.school-name-cell {
  text-align: left;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
  padding-left: 18px;
}

/* 数据总览表格响应式样式 */
@media (max-width: 768px) {
  .data-overview-table {
    font-size: 12px;
    min-width: 800px;
  }
  
  .table-header {
    padding: 12px 10px;
    font-size: 12px;
  }
  
  .table-subheader {
    padding: 10px 8px;
    font-size: 11px;
  }
  
  .summary-cell {
    padding: 10px 8px;
    font-size: 12px;
  }
  
  .data-cell {
    padding: 8px 10px;
    font-size: 11px;
  }
  
  .school-name-cell {
    max-width: 150px;
    padding-left: 12px;
  }
}

/* 数据总览表格导出按钮样式 */
.export-buttons {
  display: flex;
  justify-content: center;
  margin-top: 30px;
  gap: 15px;
  padding: 0 25px;
}

.export-buttons .btn {
  min-width: 150px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s ease;
}

.export-buttons .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(74, 108, 247, 0.3);
}

/* ==================== 登录页幻灯片背景 ==================== */
#login-page {
  position: relative;
  overflow: hidden;
}

#login-page.active {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-slideshow {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.login-slideshow .slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transform: scale(1.08);
  transition: opacity 1.2s ease;
}

.login-slideshow .slide.active {
  opacity: 1;
  animation: slideKenburns 9s ease-out forwards;
}

@keyframes slideKenburns {
  from { transform: scale(1.08); }
  to { transform: scale(1); }
}

.slide-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15, 30, 65, 0.82) 0%, rgba(20, 35, 75, 0.55) 45%, rgba(25, 40, 90, 0.30) 100%);
}

/* 登录框 + 主题文字 整体容器 */
.login-main {
  position: relative;
  z-index: 5;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* 幻灯片主题字幕（登录框下方居中） */
.slide-captions {
  position: relative;
  width: min(680px, 92vw);
  height: 142px;
  margin-top: 20px;
  pointer-events: none;
}

.slide-caption {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  text-align: center;
  opacity: 0;
  transform: translateY(-10px);
  transition: all 0.8s ease 0.2s;
}

.slide-caption.active {
  opacity: 1;
  transform: translateY(0);
}

.slide-caption h2 {
  margin: 0;
  font-size: 30px;
  font-weight: 700;
  line-height: 1.3;
  color: #ffffff;
  letter-spacing: 6px;
  text-shadow: 0 3px 16px rgba(0, 0, 0, 0.55);
}

.slide-caption h2::after {
  content: '';
  display: block;
  width: 72px;
  height: 4px;
  margin: 12px auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #4facfe 0%, #3b82f6 100%);
}

.slide-caption p {
  margin: 10px 0 0;
  font-size: 16px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.92);
  letter-spacing: 1.5px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

/* 轮播指示点 */
.slide-dots {
  margin-top: 14px;
  display: flex;
  gap: 10px;
}

.slide-dots .dot {
  width: 28px;
  height: 5px;
  border-radius: 3px;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  transition: all 0.4s ease;
}

.slide-dots .dot:hover {
  background: rgba(255, 255, 255, 0.6);
}

.slide-dots .dot.active {
  background: #ffffff;
  width: 42px;
  box-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}

/* 登录卡片（玻璃质感悬浮） */
#login-page .login-container {
  position: relative;
  z-index: 5;
  margin: 0;
  max-width: 420px;
  width: 420px;
  padding: 44px 40px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 22px;
  box-shadow: 0 25px 70px rgba(10, 20, 50, 0.45);
  animation: loginCardIn 0.8s ease 0.15s backwards;
}

@keyframes loginCardIn {
  from { opacity: 0; transform: translateY(36px); }
  to { opacity: 1; transform: translateY(0); }
}

.login-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 6px;
}

.login-brand span {
  font-size: 14px;
  color: #6a7899;
  letter-spacing: 2px;
  font-weight: 500;
}

#login-page .login-container h1 {
  font-size: 26px;
  color: #1f2d4d;
  letter-spacing: 6px;
}

#login-page .form-group input {
  border: 1.5px solid #dfe6f1;
  border-radius: 10px;
  padding: 13px 15px;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

#login-page .form-group input:focus {
  border-color: #3b82f6;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.14);
  outline: none;
}

#login-page .btn-primary {
  background: linear-gradient(135deg, #4a6cf7 0%, #3b82f6 50%, #1d4ed8 100%);
  border: none;
  border-radius: 10px;
  padding: 14px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 8px;
  box-shadow: 0 10px 24px rgba(59, 130, 246, 0.35);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

#login-page .btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(59, 130, 246, 0.45);
}

/* 移动端适配 */
@media (max-width: 768px) {
  #login-page.active {
    align-items: flex-end;
    padding-bottom: 24px;
  }

  .slide-caption h2 {
    font-size: 20px;
    letter-spacing: 3px;
  }

  .slide-caption p {
    font-size: 13px;
    line-height: 1.6;
    margin-top: 6px;
  }

  .slide-captions {
    height: 108px;
    margin-top: 14px;
  }

  .slide-dots {
    margin-top: 10px;
  }

  .slide-dots .dot {
    width: 22px;
  }

  .slide-dots .dot.active {
    width: 34px;
  }

  #login-page .login-container {
    width: 92%;
    max-width: 92%;
    padding: 30px 24px;
    border-radius: 18px;
  }

  #login-page .login-container h1 {
    font-size: 22px;
    letter-spacing: 4px;
  }
}