.container {
  width: 1226px;
  margin: 0 auto;
  color: #333;
}

* {
  padding: 0;
  margin: 0;
}
body {
  padding-bottom: 200px;
}
.banner {
  width: 100%;
}

.banner img {
  width: 100%;
  height: auto;
}
.title_wrap {
  padding: 40px 0 10px 0;
}
.title {
  font-size: 30px;
  text-align: center;
  font-weight: bold;
}

.title_small {
  font-size: 14px;
  text-align: center;
}

.explain_wrapper {
  display: flex;
  margin-top: 60px;
}

.explain_details {
  padding: 0 20px;
}

.explain_details .explain_details_tltle {
  font-size: 18px;
  font-weight: bold;
}
.explain_details .explain_details_content {
  padding-top: 20px;
  font-size: 16px;
  /* font-weight: bold; */
}

.card_box {
  width: 220px;
  height: 118px;
  border: 1px solid #333;
}

.card_box2 {
  position: relative;
  padding: 24px 10px 0 10px;
  width: 100%;
  height: 100%;
  background-color: pink;
  box-sizing: border-box;
  font-weight: bold;
}

.picture {
  margin-top: 40px;
  display: flex;
  justify-content: space-between;
}

.picture .big_img {
  /* width: 40%; */
  width: 550px;
  height: 550px;
  box-shadow: 4px 6px 4px rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  overflow: hidden;
}

.picture .big_img img {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.3s;
}

.picture .big_img:hover img {
  transform: scale(1.2);
}

.picture .combination {
  width: 666px;

  height: 550px;
  display: flex;
  flex-wrap: wrap;
  /* justify-content: space-between; */
}

.picture .combination .combination_item {
  /* width: 56%; */
  width: 323px;
  height: 270px;
  margin-bottom: 10px;
  margin-right: 10px;
  box-shadow: 4px 6px 4px rgba(0, 0, 0, 0.3);
  border-radius: 8px;
  overflow: hidden;
}
.combination_item img {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.3s;
}

.combination_item:hover img {
  transform: scale(1.2);
}