.jiagou {
  margin: 0 0 0 -100px;
  width: 800px;
}
.zslist {
  flex: 1;
}
.ny_wrapper2 {
  background: #f5f5f5;
}

.biankuang {
  background: #fff;
  border-radius: 3px;
  box-shadow: 1px 0 2px rgba(0, 0, 0, 0.1);
  margin: 30px auto;
  padding: 30px;
}
/* 手机屏幕样式 - 一行显示一个 */
@media screen and (max-width: 600px) {
  .jiagou {
    margin: 0 0 0 0px !important;
    width: 100% !important;
  }
  .certificate-container {
    display: flex !important;
    flex-wrap: wrap !important;
    gap: 15px !important;
  }

  .zslist {
    flex: 0 0 calc(50% - 7.5px) !important;
    box-sizing: border-box !important;
    max-width: calc(50% - 7.5px) !important;
  }

  .zslist img {
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
}