:root {
  --primary: #1677ff;
  --primary-hover: #4096ff;
  --border: #d9d9d9;
  --bg: #f5f5f5;
  --text: #1f1f1f;
  --muted: #8c8c8c;
  --danger: #ff4d4f;
  --card: #ffffff;
  --radius: 6px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
  font-size: 14px;
}

.btn {
  height: 32px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  line-height: 30px;
}
.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn-primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.btn-primary:hover {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  color: #fff;
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: #fff;
}
.btn-ghost:hover { color: #bae0ff; border-color: transparent; }
.btn-block { width: 100%; height: 40px; }

/* Login */
.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 20% 20%, rgba(22, 119, 255, 0.18), transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(22, 119, 255, 0.12), transparent 35%),
    linear-gradient(160deg, #0b1b33 0%, #123055 45%, #1a4b7c 100%);
}
.login-panel {
  width: min(400px, 92vw);
  background: rgba(255, 255, 255, 0.96);
  border-radius: 12px;
  padding: 36px 32px 28px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.28);
}
.login-brand {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: #0f2744;
}
.login-sub {
  margin: 8px 0 24px;
  color: var(--muted);
}
.login-form label {
  display: block;
  margin-bottom: 16px;
}
.login-form span {
  display: block;
  margin-bottom: 6px;
  color: #434343;
}
.login-form input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 12px;
  font-size: 14px;
}
.login-form input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(22, 119, 255, 0.15);
}
.login-error {
  background: #fff2f0;
  border: 1px solid #ffccc7;
  color: var(--danger);
  padding: 8px 12px;
  border-radius: var(--radius);
  margin-bottom: 16px;
}
.login-hint {
  margin-top: 16px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  padding: 0 20px;
  background: #001529;
  color: #fff;
}
.tabs { display: flex; gap: 4px; height: 100%; }
.tab {
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  padding: 0 16px;
  height: 100%;
  cursor: pointer;
  border-bottom: 2px solid transparent;
}
.tab.active {
  color: #fff;
  border-bottom-color: var(--primary);
}
.tab:disabled { cursor: default; opacity: 0.55; }
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-label { color: rgba(255, 255, 255, 0.85); }

.page {
  padding: 16px;
  max-width: 1600px;
  margin: 0 auto;
}

.filter-card,
.table-card {
  background: var(--card);
  border: 1px solid #f0f0f0;
  border-radius: 8px;
  padding: 16px;
  margin-bottom: 12px;
}

.filter-form { display: flex; flex-direction: column; gap: 12px; }
.filter-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(160px, 1fr)) auto;
  gap: 12px 16px;
  align-items: end;
}
.filter-row label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  color: #595959;
  font-size: 13px;
}
.filter-row input,
.filter-row select {
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 10px;
  font-size: 14px;
  background: #fff;
}
.filter-row input:focus,
.filter-row select:focus {
  outline: none;
  border-color: var(--primary);
}
.filter-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  padding-bottom: 1px;
}
.date-range {
  display: flex;
  align-items: center;
  gap: 6px;
}
.date-range input { flex: 1; min-width: 0; }
.date-range span { color: var(--muted); }

.stats-bar {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
  background: var(--card);
  border: 1px solid #f0f0f0;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
}
.stat-item { color: #595959; }
.stat-item strong { color: var(--text); margin-left: 4px; }
.stats-bar .btn { margin-left: auto; }

.table-wrap { overflow: auto; }
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 1200px;
}
th, td {
  border-bottom: 1px solid #f0f0f0;
  padding: 10px 12px;
  text-align: left;
  white-space: nowrap;
  font-size: 13px;
}
th {
  background: #fafafa;
  color: #595959;
  font-weight: 600;
}
tbody tr:hover { background: #fafafa; }
.empty {
  text-align: center;
  color: var(--muted);
  padding: 40px 12px !important;
}

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 14px;
  color: #595959;
}
.page-controls {
  display: flex;
  align-items: center;
  gap: 10px;
}
.page-size {
  display: flex;
  align-items: center;
  gap: 6px;
}
.page-size select {
  height: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0 8px;
}

@media (max-width: 1100px) {
  .filter-row {
    grid-template-columns: repeat(2, minmax(140px, 1fr));
  }
  .filter-actions { grid-column: 1 / -1; }
}