/* Footer styles */
:root {
  --footer-bg: #002d15;
  --footer-accent: #e8a020;
  --footer-text-primary: #fff;
  --footer-text-secondary: rgba(255, 255, 255, 0.5);
  --footer-text-tertiary: rgba(255, 255, 255, 0.4);
  --footer-border: rgba(255, 255, 255, 0.1);
  --container-7xl: 80rem;
  --spacing: 0.25rem;
  --radius: 0.625rem;
  --transition: all 0.3s ease;
}

.footer {
  background-color: var(--footer-bg);
  color: var(--footer-text-primary);
}

.footer-top {
  border-bottom: 1px solid var(--footer-border);
  padding: calc(var(--spacing) * 8) 0;
}

.footer-container {
  max-width: var(--container-7xl);
  margin: 0 auto;
  padding: 0 calc(var(--spacing) * 6);
}

.footer-info-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: calc(var(--spacing) * 6);
}

@media (min-width: 768px) {
  .footer-info-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.footer-info-item {
  display: flex;
  align-items: flex-start;
  gap: calc(var(--spacing) * 3);
}

.footer-info-icon {
  width: calc(var(--spacing) * 9);
  height: calc(var(--spacing) * 9);
  background-color: rgba(var(--footer-accent-rgb), 0.2);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.footer-info-icon svg {
  width: 17px;
  height: 17px;
  color: var(--footer-accent);
}

.footer-info-content {
  flex: 1;
}

.footer-info-label {
  font-size: 12px;
  color: var(--footer-text-secondary);
  margin-bottom: 0.5px;
}

.footer-info-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--footer-text-primary);
  margin-bottom: 2px;
}

.footer-info-desc {
  font-size: 11px;
  color: var(--footer-text-secondary);
}

.footer-bottom {
  border-top: 1px solid var(--footer-border);
  padding: calc(var(--spacing) * 5) 0;
}

.footer-bottom-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  gap: calc(var(--spacing) * 3);
}

@media (min-width: 768px) {
  .footer-bottom-content {
    flex-direction: row;
  }
}

.footer-copyright {
  font-size: 12px;
  color: var(--footer-text-tertiary);
  text-align: center;
}

@media (min-width: 768px) {
  .footer-copyright {
    text-align: left;
  }
}

.footer-links {
  display: flex;
  align-items: center;
  gap: calc(var(--spacing) * 4);
  font-size: 12px;
  color: var(--footer-text-tertiary);
}

.footer-links a {
  color: var(--footer-text-tertiary);
  text-decoration: none;
  transition: var(--transition);
}

.footer-links a:hover {
  color: rgba(255, 255, 255, 0.7);
}

.footer-links span {
  margin: 0 4px;
}

/* 辅助变量 */
:root {
  --footer-accent-rgb: 232, 160, 32;
}