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

:root {
  --primary: #2B7AFB;
  --primary-dark: #1E5FDB;
  --primary-light: #E8F1FE;
  --secondary: #FF6B6B;
  --success: #52C41A;
  --warning: #FAAD14;
  --danger: #FF4D4F;
  --text: #333333;
  --text-secondary: #666666;
  --text-light: #999999;
  --border: #E8E8E8;
  --bg: #F0F2F5;
  --white: #FFFFFF;
  --sidebar-width: 240px;
  --header-height: 64px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --shadow-sm: 0 1px 4px rgba(0,0,0,0.06);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.3s ease;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-dark);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: none;
}

button {
  cursor: pointer;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

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

/* 通用类 */
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { display: flex; flex-wrap: wrap; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-light { color: var(--text-light); }
.text-bold { font-weight: 600; }

.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.ml-8 { margin-left: 8px; }
.mr-8 { margin-right: 8px; }
.p-16 { padding: 16px; }
.p-24 { padding: 24px; }

/* 卡片 */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  margin-bottom: 24px;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  gap: 6px;
  white-space: nowrap;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

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

.btn-success {
  background: var(--success);
  color: #fff;
}

.btn-success:hover {
  background: #3fad09;
}

.btn-warning {
  background: var(--warning);
  color: #fff;
}

.btn-warning:hover {
  background: #d48806;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover {
  background: #d9363e;
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  color: var(--primary);
  border-color: var(--primary);
  background: var(--primary-light);
}

.btn-sm {
  padding: 4px 12px;
  font-size: 12px;
}

.btn-lg {
  padding: 12px 32px;
  font-size: 16px;
}

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

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text);
  font-size: 14px;
}

.form-label .required {
  color: var(--danger);
  margin-left: 2px;
}

.form-input {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: var(--transition);
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43, 122, 251, 0.1);
}

.form-input::placeholder {
  color: #c0c4cc;
}

.form-select {
  width: 100%;
  height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  transition: var(--transition);
  cursor: pointer;
  appearance: auto;
}

.form-textarea {
  width: 100%;
  min-height: 80px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  color: var(--text);
  background: #fff;
  resize: vertical;
  transition: var(--transition);
}

.form-textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(43, 122, 251, 0.1);
}

/* 表格 */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

table thead th {
  background: #fafafa;
  padding: 12px 16px;
  text-align: left;
  font-weight: 600;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

table tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  font-size: 14px;
  color: var(--text);
  vertical-align: middle;
}

table tbody tr:hover {
  background: #fafbfc;
}

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

/* 标签/徽章 */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-primary { background: var(--primary-light); color: var(--primary); }
.badge-success { background: #f6ffed; color: var(--success); }
.badge-warning { background: #fffbe6; color: #d48806; }
.badge-danger { background: #fff2f0; color: var(--danger); }
.badge-info { background: #e6fffb; color: #13c2c2; }

/* 状态标签 */
.status-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 500;
}

.status-tag::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-pending { background: #fffbe6; color: #d48806; }
.status-pending::before { background: #faad14; }
.status-accepted { background: #e6fffb; color: #13c2c2; }
.status-accepted::before { background: #13c2c2; }
.status-inprogress { background: var(--primary-light); color: var(--primary); }
.status-inprogress::before { background: var(--primary); }
.status-completed { background: #f6ffed; color: var(--success); }
.status-completed::before { background: var(--success); }
.status-cancelled { background: #fff2f0; color: var(--danger); }
.status-cancelled::before { background: var(--danger); }

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
  font-size: 13px;
  color: var(--text-secondary);
}

.pagination .page-info {
  display: flex;
  align-items: center;
  gap: 16px;
}

.pagination .page-btns {
  display: flex;
  align-items: center;
  gap: 4px;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 13px;
  color: var(--text);
  background: #fff;
  cursor: pointer;
  transition: var(--transition);
}

.page-btn:hover {
  color: var(--primary);
  border-color: var(--primary);
}

.page-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.page-btn.disabled {
  color: #c0c4cc;
  cursor: not-allowed;
}

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

.empty-state .empty-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.6;
}

.empty-state .empty-text {
  font-size: 14px;
  color: var(--text-light);
}

/* 模态框 */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0,0,0,0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.2s ease;
}

.modal {
  background: #fff;
  border-radius: var(--radius-lg);
  width: 520px;
  max-width: 90vw;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 8px 40px rgba(0,0,0,0.15);
  animation: slideUp 0.3s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 16px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 18px;
  color: var(--text-light);
  cursor: pointer;
  transition: var(--transition);
  background: none;
}

.modal-close:hover {
  background: #f5f5f5;
  color: var(--text);
}

.modal-body {
  padding: 24px;
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
}

/* 搜索栏 */
.search-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.search-bar .form-input {
  width: 200px;
}

.search-bar .form-select {
  width: 160px;
}

/* 提示消息 */
.toast {
  position: fixed;
  top: 24px;
  right: 24px;
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  color: #fff;
  z-index: 2000;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
  animation: slideRight 0.3s ease;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-warning { background: var(--warning); }

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

@keyframes slideUp {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes slideRight {
  from { transform: translateX(60px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}