.logo{
    display: flex;
    justify-content: space-between;
    margin: 0 auto;
    max-width: 80rem;
    padding: .2rem 0;
}
.logo img{
    vertical-align: middle
}
a.nav_btn{
    display: none;
}
@media screen and (max-width:75rem){
    .logo{
        padding: 0 .5rem;
    }
    .logo a:first-child{
        flex-basis: 30%;
    }
    .logo a img:nth-child(2),
    .logo a:nth-child(2){
        display: none;
    }
    a.nav_btn{
        display: block;
        align-self: center;
    }
    a.nav_btn span{
        display: block;
        border: 1px solid #ccc;
        width: 1.5rem;
        margin: 5px 0;
    }
}
.nav{
    background-image: linear-gradient(129.57deg, rgb(19, 81, 143) 0%, rgba(39, 134, 230, 1) 100%);
    max-width: 100%;
}
.nav ul{
    display: flex;
    margin: 0 auto;
    max-width: 80rem;
}
.nav ul li{
    flex: auto;
    text-align: center;
}
.nav a{
    color: white;
    display: block;
    padding: 1rem;
}
@media screen and (max-width:75rem){
    .nav{
        position: absolute;
        width: 60%;
        background-color: rgba(0,147,222, 0.5);
        margin-left: -60%;
        height: 100%;
        z-index: 9;
        transition: margin-left 0.5s ease;
    }
    .nav ul{
        flex-direction: column;
    }
}
.banner {
    background-image: url(../images/img44.jpg);
    text-align: center;
    margin-bottom: 5rem;
}
.banner .layout{
    width: 80rem;
    height: 30rem;
    display: flex;
    margin: 0 auto;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.banner h1{
    font-size: 3.5rem;
    font-weight: 600;
    color: white;
    margin-bottom: 0.2rem;
}
.banner h2 {
    font-weight: 400;
    color: white;
    /* text-shadow: #ccc; */
}
@media screen and (max-width: 75rem){
    .banner{
        margin-bottom: 2rem;
        background-position: center;
    }
    .banner .layout{
        width: 100%;
    }
}
.content{
    width: 80rem;
    margin: 0 auto;
    min-height: 60rem;
    margin-bottom: 3rem;
    color: #333;
}
.content .title{
    line-height: 2;
    border-bottom: 2px solid #e1e1e1;
}
.content .title h2{
    font-weight: 600;
    font-size: 2rem;
}
.content .title span{
    font-size: 1.1rem;
}
.content .main{
    padding: 1rem 0;
    font-size: 1.3rem;
    line-height: 2.5;
}
.content .main p{
    margin-bottom: 1rem;
}

@media screen and (max-width: 75rem){
    .content{
        width: 100%;
        padding: 0 .5rem;
    }
    .content .title{
        line-height: 1.5;
    }
    .content .title h2{
        font-size: 1.5rem;
    }
    .content .title span{
        font-size: 1rem;
    }
    .content .main{
        font-size: 1.1rem;
    }
    .content .main p{
        margin-bottom: 0;
    }
    .content .main p img{
        width: 100%!important;
    }
}

.pagination{
    width: 80rem;
    margin: 0 auto;
    display: flex;
    margin-bottom: 3rem;
}
.pagination span{
    flex: 1 0 auto;
}
.pagination a{
    color: #333;
}
@media screen and (max-width: 75rem){
    .pagination{
        width: 100%;
        flex-direction: column;
    }
    .pagination span{
        line-height: 2;
    }
}

.footer{
    background:linear-gradient(129.57deg, rgb(19, 81, 143) 0%, rgba(39, 134, 230, 1) 100%);
    padding: 3rem 0;
}
.footer .footLay{
    width: 80rem;
    margin: 0 auto;
}
.footer .footerNav{
    display: flex;
    justify-content: space-between;
    background-color:rgba(255, 255, 255, 0.2);
    text-align: center;
    margin-bottom: 3rem;
}
.footer .footerNav li{
    flex: 1 0 auto;
    padding: 0.2rem 0;
}
.footer .footerNav a{
    color: white;
    display: block;
    padding: 0.5rem 0;
    transition: color 0.5s ease;
}
.footer .footerNav a:hover{
    color: #003e8d;
}
.footer .message{
    display: flex;
    color: white;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 3rem;
}
.footer .message>div{
    flex-basis: 40%;
}
.footer .message span{
    font-size: 1.3rem;
    line-height: 3rem;
    display: block;
}
.footer .message span:first-child{
    font-weight: bold;
    font-size: 2rem;
}
.footer img{
    height: min-content;
}
@media screen and (max-width: 75rem){
    .footer{
        padding: 2rem 0.5rem;
    }
    .footer .footLay{
        width: 100%;
    }
    .footer .footerNav{
        display: none;
    }
    .footer .message{
        display: block;
        margin-bottom: 2rem;
    }
    .footer .message img:first-of-type{
        display: none;
    }
    .footer .message img:last-of-type{
        display: block;
        margin: 0 auto;
        margin-bottom: 1rem;
    }
    .footer .message span{
        font-size: 1rem;
        line-height: 2rem;
    }
    .footer .message span:first-of-type{
        font-size: 1.25rem;
    }
}