.footer-columns {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  max-width: 1200px;
  margin: 0 auto;
  padding-bottom: 30px;
  gap: 30px;
}

.footer-col {
  flex: 1;
  min-width: 160px;
  display: flex;
  flex-direction: column;
}

.footer-col h4 {
  font-weight: bold;
  font-size: 16px;
  margin-bottom: 12px;
  color: #222;
}

.footer-col a {
  color: #555;
  text-decoration: none;
  line-height: 1.8;
  font-size: 14px;
  transition: color 0.3s;
}

.footer-col a:hover {
  color: #00c8ff;
}

.footer-qrcode img {
  width: 100px;
  margin-bottom: 6px;
}

.footer-qrcode p {
  font-size: 13px;
  color: #666;
}

/* 底部版权 */
.footer-bottom {
  text-align: center;
  color: #999;
  font-size: 13px;
  border-top: 1px solid #eee;
  padding-top: 15px;
}

.footer-brand {
  flex: 1.2;
  min-width: 180px;
}

/* Footer 白底结构 */
.site-footer {
  background-color: #fff;
  color: #444;
  font-size: 14px;
  padding: 60px 20px 20px;
  border-top: 1px solid #eaeaea;
  font-family: "微软雅黑", sans-serif;
}

.footer-contact {
  display: flex;
  align-items: center;
  font-size: 14px;
  color: #444;
  margin: 6px 0;
  gap: 8px; /* 图标与文字间距 */
}

.footer-contact i {
  color: #00c8ff;
  font-size: 16px;
  min-width: 18px;
}