@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --bg-primary: #0d1117;
  --bg-secondary: #161b22;
  --bg-card: #1c2333;
  --bg-hover: #212a3a;
  --border: #30363d;
  --border-light: #21262d;
  --accent: #58a6ff;
  --accent-hover: #79b8ff;
  --accent-glow: rgba(88,166,255,0.15);
  --success: #3fb950;
  --warning: #d29922;
  --danger: #f85149;
  --info: #58a6ff;
  --purple: #bc8cff;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #484f58;
  --sidebar-w: 240px;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --transition: 0.2s ease;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── 滚动条 ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ── 布局 ── */
.layout { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 24px 20px 16px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo a { text-decoration: none; }
.logo-title {
  font-size: 20px;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.logo-sub { font-size: 11px; color: var(--text-muted); margin-top: 2px; }

.sidebar-nav { flex: 1; padding: 12px 8px; overflow-y: auto; }
.nav-section {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 12px 12px 6px;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: all var(--transition);
  margin-bottom: 2px;
}
.nav-link:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-link.active { background: var(--accent-glow); color: var(--accent); }
.nav-link .icon { font-size: 16px; width: 20px; text-align: center; }

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border);
}
.user-info { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.user-avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; font-weight: 600; color: white;
}
.user-name { font-size: 13px; font-weight: 500; }
.user-role { font-size: 11px; color: var(--text-muted); }
.logout-btn {
  display: flex; align-items: center; gap: 8px;
  width: 100%; padding: 8px 12px;
  background: none; border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 13px; cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
}
.logout-btn:hover { border-color: var(--danger); color: var(--danger); }

/* ── 主内容区 ── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: 60px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  position: sticky; top: 0; z-index: 50;
}
.page-title { font-size: 16px; font-weight: 600; }

.content { padding: 28px; flex: 1; }

/* ── 卡片 ── */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.card-title { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* ── 统计卡片 ── */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  opacity: 0;
  transition: opacity var(--transition);
}
.stat-card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: var(--shadow); }
.stat-card:hover::before { opacity: 1; }
.stat-label { font-size: 12px; color: var(--text-secondary); font-weight: 500; text-transform: uppercase; letter-spacing: 0.5px; }
.stat-value { font-size: 28px; font-weight: 700; margin: 8px 0 4px; line-height: 1; }
.stat-sub { font-size: 12px; color: var(--text-secondary); }
.stat-icon { font-size: 24px; margin-bottom: 8px; }

/* ── 员工数据 (team-*) ── */
.team-section { margin-bottom: 28px; }
.team-section-head {
  display: flex; align-items: flex-end; justify-content: space-between;
  margin-bottom: 14px; padding: 0 2px;
}
.team-section-title {
  font-size: 16px; font-weight: 700; color: var(--text-primary);
  letter-spacing: -0.2px;
}
.team-section-title::before {
  content: ''; display: inline-block; width: 3px; height: 14px;
  background: linear-gradient(180deg, var(--accent), var(--purple));
  border-radius: 2px; margin-right: 10px; vertical-align: -2px;
}
.team-section-sub {
  display: block; font-size: 12px; color: var(--text-muted);
  margin-top: 4px; margin-left: 13px;
}
.team-section-count {
  font-size: 12px; color: var(--text-secondary);
  padding: 4px 10px; border: 1px solid var(--border);
  border-radius: 999px; background: var(--bg-card);
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 14px;
}

.team-card {
  position: relative;
  background: linear-gradient(180deg, var(--bg-card) 0%, rgba(28,35,51,0.7) 100%);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 18px 16px;
  display: flex; flex-direction: column; gap: 14px;
  transition: all var(--transition);
  overflow: hidden;
  cursor: pointer;
}
.team-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--purple));
  opacity: 0.5; transition: opacity var(--transition);
}
.team-card.is-admin::before {
  background: linear-gradient(90deg, var(--warning), #f7b955);
  opacity: 0.7;
}
.team-card:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 24px rgba(0,0,0,0.35);
  transform: translateY(-2px);
}
.team-card:hover::before { opacity: 1; }
.team-card.is-selected {
  background: linear-gradient(180deg, rgba(88,166,255,0.16) 0%, rgba(28,35,51,0.86) 100%);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px rgba(88,166,255,0.45), 0 8px 28px rgba(0,0,0,0.38);
}
.team-card.is-selected::before { opacity: 1; height: 3px; }

.team-card select { cursor: pointer; }

.team-card-head {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed var(--border-light);
}
.team-avatar {
  width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  color: #0d1117;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 16px; letter-spacing: 0.5px;
  flex-shrink: 0;
}
.team-card.is-admin .team-avatar {
  background: linear-gradient(135deg, var(--warning), #f7b955);
}
.team-id { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.team-name {
  font-size: 15px; font-weight: 600; color: var(--text-primary);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.team-role {
  font-size: 10px; font-weight: 600; letter-spacing: 0.6px;
  text-transform: uppercase; color: var(--text-muted);
}
.team-role.is-admin { color: var(--warning); }

.team-block {
  display: flex; flex-direction: column; gap: 8px;
}
.team-block-head {
  display: flex; align-items: center; gap: 8px;
}
.team-block-icon {
  font-size: 14px;
  width: 22px; height: 22px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-light);
}
.team-block-title {
  font-size: 11px; font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 0.6px;
}
.team-metric {
  display: flex; align-items: baseline; gap: 10px;
  padding-left: 30px;
}
.team-metric-value {
  font-size: 24px; font-weight: 700; line-height: 1;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}
.team-metric-delta {
  font-size: 12px; font-weight: 600;
  color: var(--success);
  padding: 2px 8px; border-radius: 999px;
  background: rgba(63,185,80,0.10);
  border: 1px solid rgba(63,185,80,0.25);
}
.team-metric-delta.week {
  color: #58a6ff;
  background: rgba(88,166,255,0.10);
  border-color: rgba(88,166,255,0.25);
}
.team-metric-delta.zero {
  color: var(--text-muted);
  background: transparent;
  border-color: var(--border-light);
}
.team-metric-select {
  margin-left: auto;
  font-size: 11px;
  padding: 2px 6px;
  border-radius: 6px;
  border: 1px solid var(--border-light);
  background: var(--bg-elevated, rgba(255,255,255,0.04));
  color: var(--text-secondary);
  cursor: pointer;
  max-width: 110px;
}
.team-metric-select:focus {
  outline: none;
  border-color: var(--accent);
}

.team-tier-row {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 6px; margin-top: 4px; margin-left: 30px;
}
.team-tier {
  display: flex; flex-direction: column; align-items: flex-start; gap: 2px;
  padding: 6px 10px;
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-light);
  transition: all var(--transition);
}
.team-tier:hover { border-color: var(--border); background: rgba(255,255,255,0.04); }
.team-tier-label {
  font-size: 10px; font-weight: 600; letter-spacing: 0.5px;
  text-transform: uppercase; color: var(--text-muted);
}
.team-tier-value {
  font-size: 16px; font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}
.team-tier.ypp .team-tier-label { color: var(--success); }
.team-tier.ypp .team-tier-value { color: var(--success); }
.team-tier.k10 .team-tier-label { color: var(--accent); }
.team-tier.k10 .team-tier-value { color: var(--accent); }
.team-tier.k1  .team-tier-label { color: var(--purple); }
.team-tier.k1  .team-tier-value { color: var(--purple); }


/* ── YouTube 频道卡 ── */
.channel-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.channel-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all var(--transition);
}
.channel-card:hover { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent-glow); }
.channel-name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.channel-id { font-size: 12px; color: var(--text-muted); font-family: monospace; margin-bottom: 16px; }
.channel-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ch-stat { }
.ch-stat-label { font-size: 11px; color: var(--text-secondary); }
.ch-stat-value { font-size: 18px; font-weight: 700; margin-top: 2px; }
.ch-stat-value.up { color: var(--success); }
.ch-stat-value.accent { color: var(--accent); }
.channel-meta { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--border); font-size: 12px; color: var(--text-muted); }

/* ── 表格 ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead th {
  padding: 10px 14px;
  text-align: left;
  vertical-align: top;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.th-filter-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.th-filter-label {
  display: inline-flex;
  align-items: center;
  line-height: 1.1;
}
.th-filter-menu {
  position: relative;
}
.th-filter-menu[open] {
  z-index: 20;
}
.th-filter-menu[open] .th-filter-trigger,
.th-filter-menu.is-active .th-filter-trigger {
  color: var(--accent);
  border-color: rgba(88,166,255,0.45);
  background: var(--accent-glow);
}
.th-filter-menu summary::-webkit-details-marker {
  display: none;
}
.th-filter-trigger {
  list-style: none;
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition);
}
.th-filter-trigger:hover {
  color: var(--text-primary);
  border-color: var(--border);
  background: rgba(255,255,255,0.04);
}
.th-filter-trigger svg {
  width: 12px;
  height: 12px;
  fill: currentColor;
}
.th-filter-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 170px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg-card);
  box-shadow: var(--shadow);
}
.th-filter-panel-title {
  margin-bottom: 8px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0;
  text-transform: none;
}
.th-filter-select {
  width: 100%;
  min-width: 0;
  padding: 7px 30px 7px 10px;
  border: 1px solid rgba(88,166,255,0.22);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 12px;
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  appearance: none;
  cursor: pointer;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition), background var(--transition);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='%238b949e' d='M5 6L0 0h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.th-filter-select:hover {
  border-color: rgba(88,166,255,0.45);
  background-color: var(--bg-hover);
}
.th-filter-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.sortable-table thead th[data-sort-type] {
  cursor: pointer;
  user-select: none;
  position: relative;
  padding-right: 34px;
  transition: background var(--transition), color var(--transition);
}
.sortable-table thead th[data-sort-type]:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}
/* 默认双三角：上▲ 下▼ 都显示，颜色偏暗 */
.sortable-table thead th[data-sort-type]::before,
.sortable-table thead th[data-sort-type]::after {
  content: '';
  position: absolute;
  right: 12px;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
}
.sortable-table thead th[data-sort-type]::before {
  top: calc(50% - 9px);
  border-bottom: 6px solid var(--text-muted);
}
.sortable-table thead th[data-sort-type]::after {
  bottom: calc(50% - 9px);
  border-top: 6px solid var(--text-muted);
}
/* ASC：上三角高亮，下三角变暗 */
.sortable-table thead th.sort-asc {
  color: var(--accent);
  background: var(--accent-glow);
}
.sortable-table thead th.sort-asc::before {
  border-bottom-color: var(--accent);
}
.sortable-table thead th.sort-asc::after {
  border-top-color: var(--border);
}
/* DESC：下三角高亮，上三角变暗 */
.sortable-table thead th.sort-desc {
  color: var(--accent);
  background: var(--accent-glow);
}
.sortable-table thead th.sort-desc::before {
  border-bottom-color: var(--border);
}
.sortable-table thead th.sort-desc::after {
  border-top-color: var(--accent);
}
tbody tr { border-bottom: 1px solid var(--border-light); transition: background var(--transition); }
tbody tr:hover { background: var(--bg-hover); }
tbody td { padding: 12px 14px; vertical-align: middle; }
tbody tr:last-child { border-bottom: none; }

/* ── 徽章 ── */
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}
.badge-success { background: rgba(63,185,80,0.15); color: var(--success); }
.badge-warning { background: rgba(210,153,34,0.15); color: var(--warning); }
.badge-danger  { background: rgba(248,81,73,0.15);  color: var(--danger);  }
.badge-info    { background: rgba(88,166,255,0.15);  color: var(--info);    }
.badge-purple  { background: rgba(188,140,255,0.15); color: var(--purple);  }
.badge-muted   { background: rgba(72,79,88,0.3);     color: var(--text-secondary); }

/* ── 按钮 ── */
.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 500;
  cursor: pointer; border: none;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-ghost { background: none; border: 1px solid var(--border); color: var(--text-secondary); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn-danger-ghost { background: none; border: 1px solid var(--border); color: var(--text-secondary); }
.btn-danger-ghost:hover { border-color: var(--danger); color: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-icon { padding: 6px; border-radius: var(--radius-sm); }

/* ── 表单 ── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 6px; color: var(--text-secondary); }
.form-control {
  width: 100%;
  padding: 9px 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 14px;
  font-family: inherit;
  transition: border-color var(--transition);
  outline: none;
}
.form-control:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
select.form-control { cursor: pointer; }
.form-hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ── Modal ── */
.modal-overlay {
  display: none;
  position: fixed; inset: 0; z-index: 1000;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  align-items: center; justify-content: center;
}
.modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  width: 100%; max-width: 480px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.6);
  animation: modalIn 0.2s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(10px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}
.modal-header {
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.modal-title { font-size: 16px; font-weight: 600; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 20px; cursor: pointer; padding: 4px; border-radius: 4px; }
.modal-close:hover { color: var(--text-primary); background: var(--bg-hover); }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 12px 24px 20px; display: flex; gap: 10px; justify-content: flex-end; }

/* ── Alert/Toast ── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 8px;
}
.alert-danger { background: rgba(248,81,73,0.1); border: 1px solid rgba(248,81,73,0.3); color: var(--danger); }
.alert-success { background: rgba(63,185,80,0.1); border: 1px solid rgba(63,185,80,0.3); color: var(--success); }
.alert-info { background: var(--accent-glow); border: 1px solid rgba(88,166,255,0.3); color: var(--accent); }

/* ── 查重提示框 ── */
.dup-warning {
  display: none;
  padding: 12px 14px;
  background: rgba(210,153,34,0.1);
  border: 1px solid rgba(210,153,34,0.4);
  border-radius: var(--radius-sm);
  color: var(--warning);
  font-size: 13px;
  margin-top: 8px;
}

/* ── 分页 ── */
.pagination { display: flex; gap: 6px; align-items: center; justify-content: center; margin-top: 20px; }
.page-btn {
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: none; color: var(--text-secondary);
  cursor: pointer; font-size: 13px;
  text-decoration: none; transition: all var(--transition);
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }

/* ── 过滤标签 ── */
.filter-tabs { display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px; }
.filter-tab {
  padding: 6px 14px; border-radius: 20px;
  border: 1px solid var(--border);
  font-size: 13px; color: var(--text-secondary);
  text-decoration: none; transition: all var(--transition);
}
.filter-tab:hover { border-color: var(--accent); color: var(--accent); }
.filter-tab.active { background: var(--accent); color: #000; border-color: var(--accent); font-weight: 600; }

/* ── 空状态 ── */
.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p { font-size: 14px; }

/* ── 登录页 ── */
.login-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-primary);
  background-image: radial-gradient(ellipse at 20% 50%, rgba(88,166,255,0.05) 0%, transparent 50%),
                    radial-gradient(ellipse at 80% 20%, rgba(188,140,255,0.05) 0%, transparent 50%);
}
.login-card {
  width: 380px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 36px;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
}
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .logo-title { font-size: 28px; display: block; }
.login-logo .logo-sub { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* ── 工具类 ── */
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-muted { color: var(--text-secondary); font-size: 13px; }
.text-sm { font-size: 13px; }
.text-xs { font-size: 12px; }
.font-mono { font-family: monospace; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 220px; }
.w-full { width: 100%; }