/* ========================================
   页脚 - 森林绿渐层
   ======================================== */

@import url('variables.css');

.footer {
  margin-top: var(--spacing-20);
  background: radial-gradient(circle at top right, rgba(196, 145, 92, 0.3), transparent 55%),
              linear-gradient(135deg, #1f3b27, #2d5f3f);
  color: var(--color-white);
  padding: var(--spacing-16) 0 var(--spacing-8);
}

.footer-content {
  max-width: var(--container-width-xl);
  margin: 0 auto;
  padding: 0 var(--spacing-4);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--spacing-10);
  margin-bottom: var(--spacing-10);
}

.footer-column h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-4);
  color: var(--color-accent-light);
  letter-spacing: 0.08em;
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-column li {
  margin-bottom: var(--spacing-3);
}

.footer-column a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
}

.footer-column a::before {
  content: '↗';
  font-size: 0.75em;
  opacity: 0;
  transform: translateY(2px);
  transition: var(--transition-fast);
}

.footer-column a:hover {
  color: var(--color-white);
}

.footer-column a:hover::before {
  opacity: 1;
}

.footer-about h3 {
  color: var(--color-white);
  letter-spacing: normal;
}

.footer-about p {
  color: rgba(255, 255, 255, 0.85);
  line-height: var(--line-height-relaxed);
}

.footer-social {
  display: flex;
  gap: var(--spacing-3);
  margin-top: var(--spacing-4);
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(255, 255, 255, 0.3);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.footer-social a:hover {
  background-color: rgba(196, 145, 92, 0.2);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-contact-item {
  display: flex;
  gap: var(--spacing-3);
  align-items: center;
}

.footer-contact-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  background-color: rgba(255, 255, 255, 0.08);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent-light);
}

.footer-contact-label {
  font-size: var(--font-size-xs);
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.2em;
}

.footer-contact-value {
  color: var(--color-white);
  font-weight: var(--font-weight-medium);
}

.footer-divider {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
  margin: var(--spacing-10) 0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-4);
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.75);
  font-size: var(--font-size-sm);
}

.footer-links-bottom {
  display: flex;
  gap: var(--spacing-6);
  flex-wrap: wrap;
}

.footer-links-bottom a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-links-bottom a:hover {
  color: var(--color-white);
}

@media (max-width: 768px) {
  .footer {
    padding: var(--spacing-12) 0 var(--spacing-6);
  }

  .footer-bottom {
    flex-direction: column;
  }
}