.container {
    width: 1170px;
    margin: 0 auto;
    overflow: hidden;
}

.nav {
    border-bottom: 1px solid #f9f9f9;
    background: #fff;
}

.nav ul {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav ul li {
    height: 80px;
    line-height: 80px;
    white-space: nowrap;
    position: relative;
}

.nav ul li a {
    font-weight: bold;
    font-size: 18px;
    color: #666666;
    display: block;
}

.nav ul li.active a {
    color: #005E9A;
}

.nav ul li.active a::after {
    content: '';
    width: 100%;
    height: 2px;
    background: #005E9A;
    position: absolute;
    bottom: 0;
    left: 0;
}



.item {
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.item h2 {
    font-weight: bold;
    font-size: 24px;
    color: #333333;
    margin-bottom: 40px;
}

.item h2::before {
    content: '';
    width: 16px;
    height: 16px;
    display: inline-block;
    box-shadow: 0px 1px 3px 0px rgba(3, 81, 131, 0.66);
    border: 2px solid #005E9A;
    margin-right: 12px;
}

.item01,
.item02,
.item03,
.item04,
.item05 {
    padding: 50px 0px;
    box-sizing: border-box;
}



.item01 {
    background: #f9f9f9;
}

.item01 p {
    font-weight: 400;
    font-size: 20px;
    color: #333333;
    line-height: 42px;
}

.item01 .img {
    margin: 30px auto;
}

.item01 h3 {
    font-weight: bold;
    font-size: 20px;
    color: #333333;
    margin-bottom: 20px;
}


.item01 h3::before, .item01 p::before {
    content: '';
    width: 16px;
    height: 16px;
    display: inline-block;
    box-shadow: 0px 1px 3px 0px rgba(3, 81, 131, 0.66);
    border: 2px solid #005E9A;
    margin-right: 12px;
    position: relative;
    top:2px;
}
.item01 ul{
    background:#fff;
    overflow: hidden;
    border-top:1px solid #e5e5e5;
    border-left:1px solid #e5e5e5;
}
.item01 ul li{
    float:left;
    width:166px;
    height:54px;
    display:flex;
    align-items: center;
    justify-content: center;
    border-right:1px solid #e5e5e5;
    border-bottom:1px solid #e5e5e5;
}





.item02 p{
    font-weight: bold;
font-size: 20px;
color: #005E9A;
margin-bottom:10px;
position: relative;
padding-left:35px;
line-height:32px;
}
.item02 p::before {
    content: '';
    width: 16px;
    height: 16px;
    display: inline-block;
    box-shadow: 0px 1px 3px 0px rgba(3, 81, 131, 0.66);
    border: 2px solid #005E9A;
    margin-right: 12px;
    position: absolute;
    top:6px;
    left:0;
}
.item02 .img{
    margin-top:60px;
}



.item03 {
    background: #f9f9f9;
}
.item03 h3{
    margin-bottom:20px;
}
.item03 h3::before {
    content: '';
    width: 16px;
    height: 16px;
    display: inline-block;
    box-shadow: 0px 1px 3px 0px rgba(3, 81, 131, 0.66);
    border: 2px solid #005E9A;
    margin-right: 12px;
    position: relative;
    top:2px;
}
.item03 ul{
    margin-bottom:40px;
}
.item03 ul.u01{
    padding-left:35px;
    box-sizing: border-box;
}
.item03 ul.u01 li{
font-size: 20px;
color: #333333;
line-height: 42px;
position: relative;
padding-left:16px;
box-sizing: border-box;
}
.item03 ul.u01 li::before{
    content: '';
    width:4px;
    height:4px;
    display:block;
    border-radius: 50%;
    background:#333;
    position: absolute;
    top:20px;
    left:0;
}



.item03 ul.u02{
    background:#fff;
    overflow: hidden;
    border-top:1px solid #e5e5e5;
    border-left:1px solid #e5e5e5;
}
.item03 ul.u02 li{
    float:left;
    width:166px;
    height:54px;
    display:flex;
    align-items: center;
    justify-content: center;
    border-right:1px solid #e5e5e5;
    border-bottom:1px solid #e5e5e5;
}


.item03 ul.u03{
    background:#fff;
    overflow: hidden;
    display:flex;
    flex-wrap: wrap;
    gap:20px;
}
.item03 ul.u03 li{
    width:218px;
    height:138px;
}
.item03 ul.u03 li img{
    width:100%;
    height:100%;
}