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

:root {
  --primary: #1677ff;
  --primary-hover: #4096ff;
  --primary-light: #e6f4ff;
  --success: #52c41a;
  --warning: #faad14;
  --danger: #ff4d4f;
  --text: #1f1f1f;
  --text-secondary: #666;
  --border: #d9d9d9;
  --bg: #f5f7fa;
  --white: #fff;
  --header-bg: #001529;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

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: 1.5;
  min-height: 100vh;
}

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

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

.page-header {
  background: var(--header-bg);
  color: var(--white);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: var(--shadow);
}

.page-header h1 {
  font-size: 18px;
  font-weight: 500;
}

.page-header .breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.65);
}

.page-header .breadcrumb a {
  color: rgba(255, 255, 255, 0.85);
}

.page-header .breadcrumb span {
  margin: 0 8px;
}

.page-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px 80px;
}

.card {
  background: var(--white);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 20px 24px;
  margin-bottom: 16px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f0f0;
}

.search-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-end;
}

.form-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-item label {
  font-size: 13px;
  color: var(--text-secondary);
}

.form-item label.required::before {
  content: "*";
  color: var(--danger);
  margin-right: 4px;
}

input[type="text"],
input[type="number"],
input[type="tel"],
input[type="file"],
select,
textarea {
  height: 32px;
  padding: 4px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
  min-width: 160px;
}

textarea {
  height: auto;
  min-height: 80px;
  resize: vertical;
  padding: 8px 11px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(22, 119, 255, 0.1);
}

input:disabled,
select:disabled,
textarea:disabled {
  background: #f5f5f5;
  cursor: not-allowed;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 32px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--text);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

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

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

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

.btn-danger {
  color: var(--danger);
  border-color: var(--danger);
}

.btn-danger:hover {
  background: #fff1f0;
}

.btn-link {
  border: none;
  background: none;
  color: var(--primary);
  padding: 0 8px;
  height: auto;
}

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

.btn-link.danger {
  color: var(--danger);
}

.btn-link:disabled {
  color: #bbb;
  cursor: not-allowed;
}

.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

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

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

thead th {
  background: #fafafa;
  font-weight: 600;
  text-align: left;
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
  white-space: nowrap;
}

tbody td {
  padding: 12px 16px;
  border-bottom: 1px solid #f0f0f0;
}

tbody tr:hover {
  background: #fafafa;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
}

.tag-draft {
  background: #f0f0f0;
  color: #666;
}

.tag-submitted {
  background: #f6ffed;
  color: var(--success);
  border: 1px solid #b7eb8f;
}

.tag-ahead {
  background: #e6f4ff;
  color: var(--primary);
}

.tag-normal {
  background: #f6ffed;
  color: var(--success);
}

.tag-delayed {
  background: #fff2e8;
  color: #fa541c;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn:disabled:hover {
  border-color: var(--border);
  color: var(--text);
  background: var(--white);
}

.btn-primary:disabled:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-secondary);
}

.empty-state p {
  margin-bottom: 16px;
}

.page-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--white);
  border-top: 1px solid #f0f0f0;
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
  z-index: 100;
}

.page-footer .footer-left,
.page-footer .footer-right {
  display: flex;
  gap: 12px;
}

.info-banner {
  background: var(--primary-light);
  border: 1px solid #91caff;
  border-radius: 6px;
  padding: 12px 16px;
  margin-bottom: 16px;
  color: #0958d9;
  font-size: 13px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px 24px;
}

.form-grid .full-width {
  grid-column: 1 / -1;
}

.char-count {
  text-align: right;
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 4px;
}

.char-count.over {
  color: var(--danger);
}

/* Tab */
.tabs {
  display: flex;
  border-bottom: 1px solid #f0f0f0;
  margin-bottom: 24px;
}

.tab-item {
  padding: 12px 24px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  transition: all 0.2s;
  user-select: none;
}

.tab-item:hover {
  color: var(--primary);
}

.tab-item.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
  font-weight: 500;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.radio-group {
  display: flex;
  gap: 24px;
  align-items: center;
  min-height: 32px;
}

.radio-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.upload-area {
  border: 1px dashed var(--border);
  border-radius: 8px;
  padding: 32px;
  text-align: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color 0.2s;
}

.upload-area:hover {
  border-color: var(--primary);
}

.file-list {
  margin-top: 16px;
}

.file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  background: #fafafa;
  border-radius: 6px;
  margin-bottom: 8px;
}

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-overlay.show {
  display: flex;
}

.modal {
  background: var(--white);
  border-radius: 8px;
  width: 90%;
  max-width: 720px;
  max-height: 85vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
}

.modal.modal-sm {
  max-width: 420px;
}

.modal-header {
  padding: 16px 24px;
  border-bottom: 1px solid #f0f0f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h3 {
  font-size: 16px;
  font-weight: 600;
}

.modal-close {
  border: none;
  background: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--text-secondary);
  line-height: 1;
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 12px 24px;
  border-top: 1px solid #f0f0f0;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--white);
  padding: 12px 24px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  z-index: 2000;
  display: none;
}

.toast.show {
  display: block;
  animation: fadeIn 0.3s;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateX(-50%) translateY(-8px); }
  to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

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

  .page-footer {
    flex-direction: column;
    gap: 12px;
  }

  .search-bar {
    flex-direction: column;
    align-items: stretch;
  }
}