/* ========== 全局基础样式 ========== */
html, body {
    font: 16px "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    background: #f5f7fa;
    color: #2c3e50;
}

/* ========== 表单控件优化 ========== */
input[type=checkbox] {
  transform: scale(1.3);
  margin-right: 6px;
  cursor: pointer;
}

input[type=radio] {
  transform: scale(1.3);
  margin-right: 6px;
  cursor: pointer;
}

/* ========== 表格样式优化 ========== */
.table > tbody > tr > td {
  vertical-align: middle;
}

.table {
  background: #ffffff;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.table > thead > tr > th {
  background-color: #eef2f7;
  border-bottom: 2px solid #dce3ec;
  color: #2c3e50;
  font-weight: 600;
}

.table-hover > tbody > tr:hover {
  background-color: #f0f4fa;
}

/* ========== 通用对齐工具 ========== */
.left {
  float: left;
  text-align: left;
}

.right {
  float: right;
  text-align: right;
}

/* ========== 导航栏 - 全新设计 ========== */
.navbar {
  background-image: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  border: none;
  min-height: 60px;
}

.navbar-inverse {
  background: linear-gradient(135deg, #2c3e50 0%, #1a2a3a 100%);
  border-color: #1a2a3a;
}

.navbar-inverse .navbar-brand {
  color: #ecf0f1;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.5px;
  padding: 18px 15px;
}
.navbar-inverse .navbar-brand:hover,
.navbar-inverse .navbar-brand:focus {
  color: #ffffff;
}

.navbar-inverse .navbar-text {
  color: #bdc3c7;
}

.navbar-inverse .navbar-nav > li > a {
  color: #d5dce4;
  padding: 18px 16px;
  font-weight: 500;
  transition: all 0.25s ease;
  border-radius: 4px;
  margin: 4px 2px;
}
.navbar-inverse .navbar-nav > li > a:hover,
.navbar-inverse .navbar-nav > li > a:focus {
  color: #ffffff;
  background-color: rgba(255,255,255,0.10);
}

.navbar-inverse .navbar-nav > li > .dropdown-menu {
  background-color: #2c3e50;
  border: 1px solid #3d5266;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.navbar-inverse .navbar-nav > li > .dropdown-menu > li > a {
  color: #d5dce4;
  padding: 8px 20px;
}
.navbar-inverse .navbar-nav > li > .dropdown-menu > li > a:hover,
.navbar-inverse .navbar-nav > li > .dropdown-menu > li > a:focus {
  color: #ffffff;
  background-color: #1a2a3a;
}
.navbar-inverse .navbar-nav > li > .dropdown-menu > li.divider {
  background-color: #3d5266;
}

.navbar-inverse .navbar-nav .open .dropdown-menu > .active > a,
.navbar-inverse .navbar-nav .open .dropdown-menu > .active > a:hover,
.navbar-inverse .navbar-nav .open .dropdown-menu > .active > a:focus {
  color: #ffffff;
  background-color: #1a2a3a;
}

.navbar-inverse .navbar-nav > .active > a,
.navbar-inverse .navbar-nav > .active > a:hover,
.navbar-inverse .navbar-nav > .active > a:focus {
  color: #ffffff;
  background: rgba(255,255,255,0.15);
  border-radius: 4px;
}

.navbar-inverse .navbar-nav > .open > a,
.navbar-inverse .navbar-nav > .open > a:hover,
.navbar-inverse .navbar-nav > .open > a:focus {
  color: #ffffff;
  background-color: #1a2a3a;
  border-radius: 4px;
}

.navbar-inverse .navbar-toggle {
  border-color: #3d5266;
  margin-top: 12px;
}
.navbar-inverse .navbar-toggle:hover,
.navbar-inverse .navbar-toggle:focus {
  background-color: #1a2a3a;
}
.navbar-inverse .navbar-toggle .icon-bar {
  background-color: #ecf0f1;
}

.navbar-inverse .navbar-collapse,
.navbar-inverse .navbar-form {
  border-color: #3d5266;
}

.navbar-inverse .navbar-link {
  color: #d5dce4;
}
.navbar-inverse .navbar-link:hover {
  color: #ffffff;
}

.navbar .glyphicon {
  margin-right: 6px;
}

/* ========== 移动端适配 ========== */
@media (max-width: 767px) {
  .navbar-inverse .navbar-nav .open .dropdown-menu > li > a {
    color: #d5dce4;
    padding: 8px 20px;
  }
  .navbar-inverse .navbar-nav .open .dropdown-menu > li > a:hover,
  .navbar-inverse .navbar-nav .open .dropdown-menu > li > a:focus {
    color: #ffffff;
    background-color: #1a2a3a;
  }
  .navbar-inverse .navbar-nav .open .dropdown-menu > .active > a,
  .navbar-inverse .navbar-nav .open .dropdown-menu > .active > a:hover,
  .navbar-inverse .navbar-nav .open .dropdown-menu > .active > a:focus {
    color: #ffffff;
    background-color: #1a2a3a;
  }

  .navbar-inverse .navbar-nav > li > a {
    padding: 12px 16px;
    margin: 2px 0;
  }

  .navbar-inverse .navbar-brand {
    padding: 14px 15px;
  }
}

/* ========== 新增：卡片风格容器 ========== */
.container {
  padding-top: 10px;
}

.panel-box {
  background: #ffffff;
  border-radius: 10px;
  padding: 24px 28px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  border: 1px solid #eaeef3;
}

/* ========== 按钮美化 ========== */
.btn {
  border-radius: 6px;
  font-weight: 500;
  padding: 8px 20px;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #3b7cbf 0%, #2c5f8a 100%);
  border: none;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #4a8fd4 0%, #2c5f8a 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(59, 124, 191, 0.35);
}

.btn-danger {
  background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
  border: none;
}
.btn-danger:hover {
  background: linear-gradient(135deg, #ef6b5a 0%, #c0392b 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(231, 76, 60, 0.35);
}

.btn-default {
  background: #f0f2f5;
  border: 1px solid #d5dce4;
  color: #2c3e50;
}
.btn-default:hover {
  background: #e4e8ee;
  border-color: #bcc6d0;
}

/* ========== 标题美化 ========== */
h1, h2, h3, h4 {
  color: #2c3e50;
  font-weight: 600;
}

h1 {
  font-size: 28px;
  border-bottom: 3px solid #3b7cbf;
  padding-bottom: 12px;
  display: inline-block;
}

h2 {
  font-size: 22px;
  margin-top: 20px;
}

h3 {
  font-size: 18px;
  color: #34495e;
}

/* ========== 警示框美化 ========== */
.alert {
  border-radius: 8px;
  border: none;
  box-shadow: 0 2px 6px rgba(0,0,0,0.06);
}

.alert-success {
  background: #e8f5e9;
  color: #2e7d32;
}

.alert-danger {
  background: #fce4ec;
  color: #c62828;
}

.alert-warning {
  background: #fff3e0;
  color: #e65100;
}

.alert-info {
  background: #e3f2fd;
  color: #0d47a1;
}