/* 基础布局与主题 */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  background: radial-gradient(circle at top left, #1f2933, #020617);
  color: #e5e7eb;
}

a {
  color: inherit;
  text-decoration: none;
}

.page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 100%;
  background: rgba(15, 23, 42, 0.96);
  border-radius: 18px;
  padding: 28px 24px 24px;
  box-shadow:
    0 40px 80px rgba(15, 23, 42, 0.8),
    0 0 0 1px rgba(148, 163, 184, 0.12);
  backdrop-filter: blur(18px);
}

.card-header {
  margin-bottom: 24px;
}

.card-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 13px;
  color: #9ca3af;
}

.form-group {
  margin-bottom: 16px;
}

.label-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}

label {
  font-size: 13px;
  color: #d1d5db;
}

.hint {
  font-size: 11px;
  color: #6b7280;
}

input,
select {
  width: 100%;
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid rgba(75, 85, 99, 0.9);
  background: rgba(15, 23, 42, 0.9);
  color: #e5e7eb;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input:focus,
select:focus {
  border-color: #38bdf8;
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.6);
  background: rgba(15, 23, 42, 1);
}

.btn {
  width: 100%;
  padding: 10px 14px;
  border-radius: 999px;
  border: none;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: transform 0.1s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #0ea5e9, #22c55e);
  color: #0b1120;
  box-shadow:
    0 18px 35px rgba(34, 197, 94, 0.35),
    0 0 0 1px rgba(34, 197, 94, 0.65);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow:
    0 22px 40px rgba(34, 197, 94, 0.45),
    0 0 0 1px rgba(34, 197, 94, 0.8);
}

.btn-secondary {
  background: rgba(31, 41, 55, 0.95);
  color: #e5e7eb;
  box-shadow: 0 0 0 1px rgba(75, 85, 99, 0.8);
}

.btn-secondary:hover {
  background: rgba(31, 41, 55, 1);
}

.footer-links {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: #9ca3af;
}

.footer-links a {
  color: #93c5fd;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 11px;
  background: rgba(55, 65, 81, 0.7);
  color: #e5e7eb;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(55, 65, 81, 0.7);
  font-size: 11px;
  color: #d1d5db;
}

.tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #22c55e;
}

.alert {
  margin-bottom: 14px;
  padding: 9px 11px;
  border-radius: 10px;
  font-size: 13px;
}

.alert-success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.55);
  color: #6ee7b7;
}

.alert-error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.55);
  color: #fecaca;
}

.alert-muted {
  background: rgba(55, 65, 81, 0.6);
  border: 1px solid rgba(75, 85, 99, 0.9);
  color: #e5e7eb;
}

.alert small {
  display: block;
  margin-top: 2px;
  font-size: 11px;
  color: #9ca3af;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}

.pill {
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  background: rgba(31, 41, 55, 0.9);
  color: #e5e7eb;
}

.muted {
  font-size: 12px;
  color: #9ca3af;
}

.layout-two-column {
  max-width: 1024px;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.1fr);
  gap: 22px;
}

@media (max-width: 768px) {
  .layout-two-column {
    grid-template-columns: minmax(0, 1fr);
  }
  .card {
    max-width: 100%;
  }
}

.section-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.stat-card {
  padding: 10px 12px;
  border-radius: 12px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(55, 65, 81, 0.9);
}

.stat-label {
  font-size: 11px;
  color: #9ca3af;
}

.stat-value {
  margin-top: 4px;
  font-size: 16px;
  font-weight: 600;
}