/* ===== 活动赛事报名系统 · 后台管理端样式 ===== */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #eff6ff;
  --success: #10b981;
  --success-light: #ecfdf5;
  --warning: #f59e0b;
  --warning-light: #fffbeb;
  --danger: #ef4444;
  --danger-light: #fef2f2;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --sidebar-bg: #1e293b;
  --sidebar-hover: #334155;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(15, 23, 42, .08), 0 2px 8px rgba(15, 23, 42, .05);
  --shadow-lg: 0 10px 40px rgba(15, 23, 42, .16);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", Arial, sans-serif;
  background: var(--gray-50);
  color: var(--gray-900);
  font-size: 14px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }

/* ===== 登录页 ===== */
.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #1e293b, #2563eb 60%, #3b82f6);
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border-radius: 16px;
  padding: 36px 32px 30px;
  box-shadow: var(--shadow-lg);
}
.login-logo { text-align: center; margin-bottom: 22px; }
.login-logo .mark {
  width: 54px; height: 54px; margin: 0 auto 12px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  border-radius: 14px; display: grid; place-items: center;
  color: #fff; font-size: 26px;
}
.login-logo h1 { font-size: 20px; font-weight: 700; }
.login-logo p { color: var(--gray-500); font-size: 13px; margin-top: 4px; }
.login-tip {
  background: var(--warning-light);
  border: 1px solid #fde68a;
  color: #92400e;
  padding: 9px 12px; border-radius: var(--radius-sm);
  font-size: 12.5px; margin-bottom: 18px;
}

/* ===== 后台布局 ===== */
.layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  background: var(--sidebar-bg);
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 50;
  transition: transform .25s;
}
.sidebar-head {
  padding: 18px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  display: flex; align-items: center; gap: 10px;
}
.sidebar-head .mark {
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  display: grid; place-items: center; color: #fff; font-size: 15px; flex-shrink: 0;
}
.sidebar-head .txt { font-size: 15px; font-weight: 700; color: #fff; line-height: 1.3; }
.sidebar-head .txt small { display: block; font-size: 11px; font-weight: 400; color: var(--gray-400); }
.sidebar-nav { flex: 1; padding: 12px 10px; overflow-y: auto; }
.nav-section { font-size: 11px; color: #64748b; padding: 12px 10px 6px; letter-spacing: .5px; }
.nav-item {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 12px; border-radius: var(--radius-sm);
  cursor: pointer; margin-bottom: 2px; transition: .15s;
  color: #cbd5e1; font-size: 14px;
}
.nav-item:hover { background: var(--sidebar-hover); color: #fff; }
.nav-item.active { background: var(--primary); color: #fff; font-weight: 600; }
.nav-item .icon { width: 18px; text-align: center; font-size: 15px; }
.nav-item .badge {
  margin-left: auto; background: var(--danger); color: #fff;
  font-size: 11px; padding: 1px 6px; border-radius: 999px; font-weight: 600;
}
.sidebar-foot {
  padding: 12px 16px; border-top: 1px solid rgba(255, 255, 255, .08);
  font-size: 12.5px; color: var(--gray-400);
}
.sidebar-foot .user { color: #e2e8f0; font-weight: 600; margin-bottom: 6px; }
.sidebar-foot a { color: var(--gray-400); }
.sidebar-foot a:hover { color: #fff; }

.main-wrap { flex: 1; margin-left: 220px; display: flex; flex-direction: column; min-width: 0; }
.topbar {
  background: #fff; border-bottom: 1px solid var(--gray-200);
  padding: 0 24px; height: 58px;
  display: flex; align-items: center; gap: 14px;
  position: sticky; top: 0; z-index: 40;
}
.topbar h2 { font-size: 17px; font-weight: 700; }
.topbar .sub { font-size: 13px; color: var(--gray-500); }
.topbar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.menu-toggle { display: none; background: none; border: none; font-size: 20px; cursor: pointer; color: var(--gray-700); }
.content { padding: 22px 24px 40px; flex: 1; }

/* ===== 卡片 ===== */
.card {
  background: #fff; border-radius: var(--radius);
  box-shadow: var(--shadow); margin-bottom: 18px; overflow: hidden;
}
.card-head {
  padding: 14px 18px; border-bottom: 1px solid var(--gray-200);
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
}
.card-head h3 { font-size: 15px; font-weight: 700; }
.card-head .desc { font-size: 12.5px; color: var(--gray-500); }
.card-head .right { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
.card-body { padding: 18px; }
.card-body.flush { padding: 0; }

/* ===== 统计卡片 ===== */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: 14px; margin-bottom: 18px; }
.stat-card {
  background: #fff; border-radius: var(--radius); padding: 18px;
  box-shadow: var(--shadow); display: flex; align-items: center; gap: 14px;
}
.stat-icon {
  width: 46px; height: 46px; border-radius: 12px;
  display: grid; place-items: center; font-size: 22px; flex-shrink: 0;
}
.stat-info .num { font-size: 24px; font-weight: 700; line-height: 1.2; }
.stat-info .label { font-size: 13px; color: var(--gray-500); }
.bg-blue { background: var(--primary-light); }
.bg-green { background: var(--success-light); }
.bg-orange { background: var(--warning-light); }
.bg-red { background: var(--danger-light); }
.tx-blue { color: var(--primary); }
.tx-green { color: var(--success); }
.tx-orange { color: var(--warning); }
.tx-red { color: var(--danger); }

/* ===== 表格 ===== */
.table-wrap { overflow-x: auto; }
table.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
.data-table th {
  background: var(--gray-50); text-align: left; font-weight: 600;
  padding: 11px 14px; color: var(--gray-700); white-space: nowrap;
  border-bottom: 1px solid var(--gray-200);
}
.data-table td { padding: 11px 14px; border-bottom: 1px solid var(--gray-100); vertical-align: middle; }
.data-table tbody tr:hover { background: #fafcff; }
.data-table tbody tr:last-child td { border-bottom: none; }
.table-empty { text-align: center; padding: 48px 20px; color: var(--gray-400); }
.table-empty .icon { font-size: 40px; margin-bottom: 10px; opacity: .6; }
.cell-actions { display: flex; gap: 6px; flex-wrap: wrap; }
.th-sortable { cursor: pointer; user-select: none; }
.th-sortable:hover { color: var(--primary); }
.mini-col { max-width: 220px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== 表单控件 ===== */
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.form-group { margin-bottom: 14px; }
.form-group.full { grid-column: 1 / -1; }
.form-label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--gray-700); }
.form-label .req { color: var(--danger); }
.form-label .hint { font-weight: 400; color: var(--gray-400); font-size: 12px; margin-left: 6px; }
.form-control {
  width: 100%; padding: 8px 11px;
  border: 1px solid var(--gray-200); border-radius: var(--radius-sm);
  font-size: 14px; outline: none; transition: .15s; background: #fff; color: var(--gray-900);
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37, 99, 235, .1); }
.form-control:disabled { background: var(--gray-100); color: var(--gray-500); cursor: not-allowed; }
.form-control.error { border-color: var(--danger); }
textarea.form-control { resize: vertical; min-height: 88px; }
select.form-control { cursor: pointer; }
.error-msg { color: var(--danger); font-size: 12px; margin-top: 4px; display: none; }
.error-msg.show { display: block; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  padding: 8px 16px; border: 1px solid transparent; border-radius: var(--radius-sm);
  font-size: 13.5px; font-weight: 600; cursor: pointer; transition: .15s;
  background: var(--primary); color: #fff; white-space: nowrap;
}
.btn:hover { background: var(--primary-dark); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.btn-sm { padding: 5px 11px; font-size: 12.5px; }
.btn-lg { padding: 11px 20px; font-size: 15px; }
.btn-block { width: 100%; }
.btn-outline { background: #fff; border-color: var(--gray-200); color: var(--gray-700); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #dc2626; }
.btn-success { background: var(--success); }
.btn-success:hover { background: #059669; }
.btn-ghost { background: transparent; border-color: transparent; color: var(--gray-500); }
.btn-ghost:hover { background: var(--gray-100); color: var(--gray-900); }

/* ===== 标签 ===== */
.tag {
  display: inline-block; font-size: 12px; padding: 2px 9px;
  border-radius: 999px; background: var(--gray-100); color: var(--gray-500);
  white-space: nowrap;
}
.tag.blue { background: var(--primary-light); color: var(--primary); }
.tag.green { background: var(--success-light); color: var(--success); }
.tag.orange { background: var(--warning-light); color: var(--warning); }
.tag.red { background: var(--danger-light); color: var(--danger); }
.tag.gray { background: var(--gray-100); color: var(--gray-500); }

/* ===== 开关 ===== */
.switch { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.switch input { display: none; }
.switch .track {
  width: 40px; height: 22px; border-radius: 999px;
  background: var(--gray-300); position: relative; transition: .2s; flex-shrink: 0;
}
.switch .track::after {
  content: ''; position: absolute; top: 3px; left: 3px;
  width: 16px; height: 16px; border-radius: 50%; background: #fff;
  transition: .2s; box-shadow: 0 1px 3px rgba(0, 0, 0, .2);
}
.switch input:checked + .track { background: var(--primary); }
.switch input:checked + .track::after { transform: translateX(18px); }
.switch .lb { font-size: 13px; color: var(--gray-700); }

/* ===== 筛选栏 ===== */
.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  padding: 14px 18px; border-bottom: 1px solid var(--gray-200); background: #fcfdfe;
}
.filter-bar .form-control { width: auto; min-width: 150px; }
.filter-bar .grow { flex: 1; }

/* ===== 分页 ===== */
.pagination {
  display: flex; justify-content: flex-end; align-items: center; gap: 6px;
  padding: 14px 18px; flex-wrap: wrap;
}
.pagination button {
  min-width: 32px; height: 32px; padding: 0 10px;
  border: 1px solid var(--gray-200); background: #fff;
  border-radius: var(--radius-sm); cursor: pointer; color: var(--gray-700); font-size: 13px;
}
.pagination button:hover:not(:disabled) { border-color: var(--primary); color: var(--primary); }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); font-weight: 600; }
.pagination button:disabled { opacity: .45; cursor: not-allowed; }
.pagination .total { margin-right: auto; color: var(--gray-500); font-size: 13px; }

/* ===== 弹窗 ===== */
.modal-mask {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .55);
  z-index: 200; display: none; align-items: flex-start; justify-content: center;
  padding: 40px 20px; overflow-y: auto; backdrop-filter: blur(2px);
}
.modal-mask.show { display: flex; }
.modal {
  background: #fff; border-radius: var(--radius); width: 100%; max-width: 640px;
  box-shadow: var(--shadow-lg); animation: modalIn .2s ease; margin: auto 0;
}
.modal.wide { max-width: 900px; }
@keyframes modalIn { from { opacity: 0; transform: translateY(-16px); } to { opacity: 1; transform: translateY(0); } }
.modal-head {
  padding: 15px 20px; border-bottom: 1px solid var(--gray-200);
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; background: #fff; border-radius: var(--radius) var(--radius) 0 0;
}
.modal-head h3 { font-size: 16px; font-weight: 700; }
.modal-close { background: none; border: none; font-size: 24px; color: var(--gray-400); cursor: pointer; line-height: 1; }
.modal-close:hover { color: var(--gray-900); }
.modal-body { padding: 20px; }
.modal-foot {
  padding: 14px 20px; border-top: 1px solid var(--gray-200);
  display: flex; justify-content: flex-end; gap: 10px;
  position: sticky; bottom: 0; background: #fff; border-radius: 0 0 var(--radius) var(--radius);
}

/* ===== Toast ===== */
.toast-wrap {
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%);
  z-index: 9999; display: flex; flex-direction: column; gap: 8px; align-items: center; pointer-events: none;
}
.toast {
  padding: 10px 20px; border-radius: var(--radius-sm);
  background: rgba(15, 23, 42, .93); color: #fff; font-size: 13.5px;
  box-shadow: var(--shadow-lg); animation: slideDown .25s ease; max-width: 90vw;
}
.toast.success { background: #059669; }
.toast.error { background: #dc2626; }
.toast.info { background: var(--primary); }
@keyframes slideDown { from { opacity: 0; transform: translateY(-12px); } to { opacity: 1; transform: translateY(0); } }

/* ===== 表单配置器（拖拽排序） ===== */
.field-list { display: flex; flex-direction: column; gap: 8px; }
.field-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm); background: #fff; transition: .15s;
}
.field-item:hover { border-color: var(--primary); }
.field-item.dragging { opacity: .4; border-style: dashed; }
.field-item.drag-over { border-color: var(--primary); background: var(--primary-light); }
.field-item.disabled { background: var(--gray-50); opacity: .75; }
.drag-handle {
  cursor: grab; color: var(--gray-400); font-size: 16px; padding: 0 4px;
  user-select: none; flex-shrink: 0;
}
.drag-handle:active { cursor: grabbing; }
.field-item .f-name { min-width: 130px; font-weight: 600; flex-shrink: 0; }
.field-item .f-name small { display: block; font-weight: 400; color: var(--gray-400); font-size: 11.5px; font-family: Consolas, monospace; }
.field-item .f-label { flex: 1; min-width: 120px; }
.field-item .f-toggles { display: flex; gap: 14px; flex-shrink: 0; align-items: center; }
.field-item .f-actions { flex-shrink: 0; }

/* ===== 图表 ===== */
.chart-bar-list { display: flex; align-items: flex-end; gap: 10px; height: 160px; padding: 10px 0 0; }
.chart-bar-item { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 6px; height: 100%; justify-content: flex-end; }
.chart-bar {
  width: 100%; max-width: 42px; background: linear-gradient(180deg, #60a5fa, var(--primary));
  border-radius: 4px 4px 0 0; min-height: 3px; transition: height .4s; position: relative;
}
.chart-bar span { position: absolute; top: -18px; left: 50%; transform: translateX(-50%); font-size: 11px; color: var(--gray-500); }
.chart-bar-item .xl { font-size: 11.5px; color: var(--gray-500); }

/* ===== 上传 ===== */
.upload-box {
  border: 2px dashed var(--gray-200); border-radius: var(--radius-sm);
  padding: 18px; text-align: center; cursor: pointer; transition: .15s; background: #fcfdfe;
}
.upload-box:hover { border-color: var(--primary); background: var(--primary-light); }
.upload-box .ph { color: var(--gray-400); font-size: 13px; }
.upload-preview { margin-top: 10px; }
.upload-preview img { max-height: 130px; border-radius: var(--radius-sm); border: 1px solid var(--gray-200); }

/* ===== 其他 ===== */
.alert { padding: 11px 14px; border-radius: var(--radius-sm); font-size: 13.5px; margin-bottom: 14px; display: flex; gap: 8px; align-items: flex-start; }
.alert-info { background: var(--primary-light); color: var(--primary-dark); border: 1px solid #bfdbfe; }
.alert-warning { background: var(--warning-light); color: #92400e; border: 1px solid #fde68a; }
.alert-danger { background: var(--danger-light); color: #991b1b; border: 1px solid #fecaca; }

.loading { text-align: center; padding: 46px; color: var(--gray-500); }
.spinner { width: 28px; height: 28px; margin: 0 auto 10px; border: 3px solid var(--gray-200); border-top-color: var(--primary); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.checkbox { width: 16px; height: 16px; cursor: pointer; accent-color: var(--primary); }

.mask-tag { font-family: Consolas, monospace; font-size: 12.5px; color: var(--gray-500); }

.divider { height: 1px; background: var(--gray-200); margin: 18px 0; }

/* ===== 响应式 ===== */
@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-lg); }
  .main-wrap { margin-left: 0; }
  .menu-toggle { display: block; }
  .content { padding: 16px 14px 32px; }
  .topbar { padding: 0 14px; }
  .form-row { grid-template-columns: 1fr; }
  .field-item { flex-wrap: wrap; }
  .field-item .f-name { min-width: 100px; }
  .field-item .f-label { min-width: 100px; }
  .modal-mask { padding: 16px 12px; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}

.sidebar-backdrop {
  display: none; position: fixed; inset: 0; background: rgba(15, 23, 42, .5); z-index: 45;
}
.sidebar-backdrop.show { display: block; }

/* ===== 系统设置补充 ===== */
.form-tip { font-size: 12px; color: var(--gray-400); margin: 6px 0 0; line-height: 1.6; }