body {
    background-size: 100% auto;
    background-color: #f5f5f5;
}

@media screen and (max-width:450px) {
    body {
        max-width: 450px;
    }
    nav {
        background-size: 20%;
    }
}

a {
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

ul {
    list-style: none;
}

nav .container {}
.logo.learn img{
    width: 600px;
    height: 220px;
}
.logo img {
    width: 200px;
    height: 200px;
    display: block;
    margin: 0 auto;
}

.logo span {
    display: block;
    text-align: center;
    font-size: 32px;
}

.nav-center {
    /* position: relative; */
    width: 100%;
    height: 50px;
    border-top: 1px solid #f1f1f1;
}

nav ul {
    /* position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%); */
    padding-left: 0;
}

nav li {
    float: left;
    height: 50px;
    padding: 2px 10px;
    margin: 0 5px;
    text-align: center;
    line-height: 50px;
}

nav li a {
    color: #000;
}

nav li a:hover {}

article {
    width: 100%;
    /* height: 400px; */
    /* background-color: #f5f5f5; */
}

article .container {
    padding: 10px 10px;
    background-color: #fff;
}


/* .publisH {
    margin: 10px auto 10px;
} */

.publisH .row {
    margin-top: 10px;
    padding: 10px 15px 15px 15px;
    background-color: #fff;
}
.publisH .pic{
    display: flex;
    align-items: center;
    justify-content: center;
}
.publisH .pic img {
    width: 300px;
    height: 300px;
}

.function {
    text-align: center;
    background-size: 25%;
    background-position: bottom right;
}

.function h3 {
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px solid #f2f2f2;
}

.function p {
    font-size: 14px;
    text-align: left;
}

.function p span {
    /* font-size: 18px; */
    font-weight: 600;
}

.function a {
    margin: 10px 10px 0;
}

.footer {
    width: 100%;
    margin-top: 15px;
    padding: 10px 0 10px;
    text-align: center;
    background-color: #313131;
}

.footer .footer-c {
    width: 100%;
    margin: 0 auto;
}

.footer ul {
    padding-left: 0;
    margin-bottom: 0;
}

.footer li {
    float: left;
    height: 30px;
    margin: 10px 0;
    padding: 0 20px;
    border-right: 1px solid rgb(72 70 70);
    text-align: center;
    line-height: 30px;
}

.footer li a:hover {
    color: cornflowerblue;
}

.footer li:last-child {
    border-right: 0;
}

.footer p {
    color: #6f6f6f;
}

.footer a {
    display: block;
    margin-bottom: 5px;
    color: #6f6f6f;
}

.footer a:hover {
    color: cornflowerblue;
}

.fixedBox{
    display: block;
    position: fixed;
    right: 60px;
    width: 120px;
    height: auto;
    bottom: 200px;
}
.fixedBox .title{
    font-size: 14px;
    color: #333;
    text-align: center;
    margin-bottom: 8px;
}
.fixedBox .qrcode{
    width: 100%;
    height: 120px;

}
@media screen and (max-width:991px) {
    .logo img {
        display: block;
        max-width: 100%;
        margin: 0 auto;
    }
    nav ul li {
        padding: 2px 5px;
        margin: 0 5px;
        text-align: center;
        line-height: 50px;
    }
    nav {
        background-size: 15%;
    }
}

@media screen and (max-width:767px) {
    .function h3 {
        margin-top: 10px;
    }
    .footer li {
        width: 100%;
        border-right: 0;
    }
    nav {
        background-size: 20%;
    }
}