/* 页脚整体 */
.custom-footer {
  background: #5c5c5e; /* 深色背景贴合科技感 */
  color: #fff;
  font-family: "Microsoft YaHei", sans-serif;
}

/* 顶部转化区 */
.footer-top {
  background: linear-gradient(90deg, #4A6EF6, #6F42C1);
  padding: 20px 0;
}
.top-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.slogan h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
}
.slogan p {
  font-size: 14px;
  opacity: 0.9;
}
.qr-btn-group {
  display: flex;
  align-items: center;
  gap: 20px;
}
.qr-code {
  width: 80px;
  height: 80px;
  border-radius: 8px;
}
.btn-group {
  display: flex;
  gap: 10px;
}
.btn {
  padding: 8px 20px;
  border-radius: 4px;
  color: #fff;
  text-decoration: none;
  transition: all 0.3s;
}
.trial-btn {
  background: #FF6B6B;
}
.consult-btn {
  background: #4ECDC4;
}
.btn:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

/* 底部信息区 */
.footer-bottom {
  padding: 40px 0;
  border-top: 1px solid #333;
}
.bottom-content {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}
.col {
  flex: 1;
  min-width: 180px;
}
.col h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 12px;
  color: #fff; /* 突出标题色 */
}
.col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.col li {
  margin: 6px 0;
}
.col li a {
  color: #fff;
  text-decoration: none;
  opacity: 0.8;
  transition: color 0.3s;
}
.col li a:hover {
  color: #4ECDC4;
}
.qr-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin: 0;
  padding: 0;
}
.qr-group {
  /* display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px; */
  margin-bottom: 8px;
  padding: 0;
}
.qr {
  width: 60px;
  height: 60px;
}
/* 标题 “关注我们” 的样式，减小与下方内容的间距 */
.qr-col h4 {
  /* 标题默认可能有 margin-bottom，减小它让下面内容更紧凑 */
  margin-bottom: 8px; 
}

/* 段落文本（联系方式、邮箱、地址等）的样式 */
.qr-col p {
  /* 段落默认有 margin，比如上下间距，统一减小 */
  margin: 4px 0; 
}

/* 版权信息 */
.copyright {
  max-width: 1200px;
  margin: 20px auto 0;
  padding: 0 20px;
  border-top: 1px solid #333;
  padding-top: 20px;
  font-size: 12px;
  opacity: 0.8;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.back-top {
  color: #4ECDC4;
  text-decoration: none;
  transition: all 0.3s;
}
.back-top:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* 响应式适配 */
@media (max-width: 768px) {
  .top-content {
    flex-direction: column;
    text-align: center;
  }
  .qr-btn-group {
    flex-direction: column;
    margin-top: 20px;
  }
  .bottom-content {
    flex-direction: column;
  }
}