.container {
  width: 90%;
  margin: 0 auto;
  margin-top: 50px;
  display: flex;
  justify-content: space-between;
}
.container .left {
  box-sizing: border-box;
  width: 25%;
  height: 500px;
  background-color: #d6d6d6;
  border-radius: 0 0 30px 0;
}
.left .left-title {
  height: 100px;
  line-height: 100px;
  text-align: center;
  font-size: 30px;
  color: #fff;
  background-color: cornflowerblue;
}
.left .left-item {
  padding-left: 50px;
  height: 56px;
  line-height: 56px;
}
.left .active {
  background-color: #fff;
  border-left: 4px solid yellow;
}
.container .right {
  width: 70%;
  padding: 30px;
  padding-left: 60px;
  box-sizing: border-box;
  height: 900px;
  border: 1px solid #999;
  border-top: 2px solid orange;
}
.right .right-title {
  height: 80px;
  line-height: 80px;
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid #999;
  margin-bottom: 30px;
}
.right .right-title .title-left {
  font-size: 30px;
}
.right .right-title .title-right {
  font-size: 12px;
  color: #999;
}
.right .right-card {
  margin: 30px 0;
}
.right .right-card li {
  height: 40px;
  line-height: 40px;
  position: relative;
  width: 100%;
}
.right .right-card li span {
  position: absolute;
  right: 20px;
  color: #999;
}
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn .button {
  padding: 5px;
  border: 1px solid #999;
  margin: 0 5px;
  cursor: pointer;
}