body{
    background-color: #141825;
}

.content {
    margin: auto;
    width: 100%;
}

/****item1****/
.item1 {
  color:#fff;
  width: 100%;
  height: 450px;
  margin-top: 130px;
  align-items: center;
  background-color: #141825;
}
.item1-content {
  margin: auto;
  width: 1200px;
}
.item1-content-title {
  float: left;
  width: 525px;
  overflow: hidden;
  margin-top: 40px;
}
.item1-content-title li {
    margin-top: 20px;
}
.item1-content-title .title{
    font-size: 40px;
    font-weight: 600;
    line-height: 70px;
}
.item1-content-title .title{
    font-size: 40px;
    font-weight: 600;
    line-height: 70px;
}
.item1-content-title .title1{
    font-size: 40px;
    font-weight: 300;
}
.item1-content-title .title2{
    font-weight: 600;
    font-size: 31px;
    color: #333333;
    background-color: #fff;
    padding-right: 10px;
    padding-left: 5px;
    margin-left: 6px;
    border-top-right-radius: 20px;
    border-bottom-right-radius: 20px;
}
.item1-content-title .title-desc {
    font-size: 18px;
    line-height: 35px;
    border-radius: 5px;
}
.item1-content-title .title-desc1{
     margin: 0 5px;
     padding: 0 5px;
     border-radius: 5px;
     background-color: #F6A96A;
}
.download-view{
    display: flex;
    margin-top: 30px!important;
    padding-right: 40px;
}
.download-view .btn-view{
    flex: 1;
    padding-right: 36px;
    position: relative;
}
.download-view .btn-view p{
    width: 120px;
    height: 30px;
    line-height: 30px;
    text-align: center;
    color: #434343;
    background: #fff;
    border-radius: 4px;
    margin-left: auto;
    margin-top: 10px;
}
.download-view .btn-view p:last-child{
    background-color: #166ffa;
    border-radius: 4px;
    color: #fff;
    position: absolute;
    bottom: 10px;
    right: 36px;
    cursor: pointer;
}
.download-view img{
    width: 110px;
    height: 110px;
}
.item1-content-image {
    float: right;
}
.item1-image {
    position: relative;
    width: 498px;
    margin-top: -90px;
}
em {
  font-size: 25px;
}

/****item2****/
.item2 {
    width: 100%;
    height: 900px;
    font-weight: 600;
    background-color: rgb(246, 249, 255);
}
.item2-content {
    margin: auto;
    width: 1200px;
}
.tips-view{
    background: #fff;
    
}
.tips-view .tips-content{
    text-align: center;
    width: 1200px;
    margin: 0 auto;
    padding: 0 30px;
}
.tips-view .tips{
    font-weight: 400;
    font-size: 18px;
    text-indent: 2em;
    margin-bottom: 20px;
}
.tips-view .grid-views{
    display: grid;  
	grid-template-columns: repeat(4, 1fr);
    column-gap: 20px;
    margin-top: 20px;
    padding: 20px 0 30px;
}
.tips-view .grid-views img{
    width: 100%;
    background: #eee;
    box-shadow: 4px 6px 3px 4px #efefef;
}
.item2-title {
    height: 140px;
    line-height: 140px;
    text-align: center;
    font-size: 40px;
    width: 1200px;
}
.item2-content-left {
  float: left;
  overflow: hidden;
   font-size: 24px;
}
.item2-content-left .text {
    width: 360px;
    height: 130px;
    line-height: 130px;
}
.item2-content-left .bread {
    height: 1px;
    background-image: linear-gradient(
        90deg,
        rgba(248, 248, 255, 1) 0%,
        rgba(176, 176, 255, 1) 49%,
        rgba(248, 248, 255, 1) 100%
    );
}
.item2-content-right {
    float: right;
    width: 840px;
    height: 520px;
    background-color: #ffffff;
}
.item2-content-image-div {
    width: 780px;
    background-color: #141825;
    border-radius: 6px;
    margin-left: 30px;
    margin-top: 30px;
}
.item2-content-image {
    width: 758px;
    height: 460px;
    margin-left: 19px;
}
.item2-button {
    text-align: center;
    width: 1200px;
    overflow: hidden;
    height: 150px;
    line-height: 150px;
}
.item2-button span a {
    background-color: #166ffa;
    border-radius: 4px;
    padding: 14px 60px;
    color: #fff;
    font-weight: 600;
    font-size: 17px;
}

/****item3****/
.item3 {
    width: 100%;
    height: 780px;
    background-color: #fff;
}
.item3-content {
    margin: auto;
    width: 1200px;
}
.item3-title {
    height: 160px;
    line-height: 200px;
    text-align: center;
    font-size: 40px;
    width: 1200px;
    font-weight: 600;
}
.item3-group {
    margin-top: 100px;
    height: 300px;
}
.item3-group-item {
    overflow: hidden;
    float: left;
    align-items: center;
    width:33%;
}
.item3-group-item li {
    margin: auto;
    margin-top: 30px;
    text-align: center;
}
.item3-group-image {
    height: 93px;
}
.item3-group-title {
    font-size: 24px;
    font-weight: 600;
    height: 33px;
    line-height: 33px;
}
.item3-group-desc {
    overflow: hidden;
    height: 48px;
    font-size: 14px;
    line-height: 24px;
    width:90%;
    text-align: center;
}
.item3-button {
    text-align: center;
    width: 1200px;
    overflow: hidden;
    height: 150px;
    line-height: 150px;
}
.item3-button span a {
    background-color: #166ffa;
    border-radius: 4px;
    padding: 14px 60px;
    color: #fff;
    font-weight: 600;
    font-size: 17px;
}

/****item4****/
.item4 {
    width: 100%;
    height: 940px;
    background-color: #f7f7f7;
}
.item4-content {
    margin: auto;
    width: 1200px;
}
.item4-title {
    height: 200px;
    line-height: 200px;
    text-align: center;
    font-size: 40px;
    width: 1200px;
    font-weight: 600;
}
.item4-desc {
    text-align: center;
    width: 1200px;
    font-size: 22px;
    color: #666666;
    margin-top: -60px;
}
.item4-groups {
    margin-top: 50px;
    overflow: hidden;
    align-items: center;
}
.item4-group{
    width: 1200px;
}
.item4-group-item{
    float: left;
    width: 370px;
    height: 330px;
    background-color: #fff;
    margin-bottom: 30px;
    margin-left: 30px;
    border-radius: 10px;
}
.item4-group-item-user {
    align-items: center;
    margin-top: 30px;
    height: 68px;
    margin-left: 30px;
}
.user-image {
    height: 68px;
    width: 68px;
    margin-right: 30px;
    float: left;
}
.user-info {
    float: left;
    overflow: hidden;
    height: 68px;
    line-height: 42px;
}
.user-info li {
    align-items: center;
}
.user-info .view {
  align-items: center;
  height: 28px;
}
.user-info .name {
  margin-right: 20px;
  font-size: 20px;
  font-weight: 600;
  line-height: 20px;
  color: #333333;
}
.user-info .age {
  font-size: 16px;
  line-height: 16px;
  color: #666666;
}
.user-info .info {
    height: 22px;
    max-width: 116px;
    margin-top: 10px;
    font-size: 16px;
    line-height: 22px;
    color: #666666;
}
.item4-group-item-label {
    height: 22px;
    max-width: 310px;
    margin-top: 30px;
    margin-left: 30px;
    font-size: 16px;
    font-weight: 500;
    line-height: 22px;
    color: #333333;
}
.item4-group-item-desc {
    width: 304px;
    height: 144px;
    margin-top: 10px;
    margin-left: 30px;
    font-size: 16px;
    line-height: 24px;
    color: #666666;
}