footer{
    background-color: rgb(73,112,189);
    height: 200px;
    width: 100%;
    min-width: 1300px;
    margin-top: 50px;
    color: #fff;
    position: relative;
    z-index: 1;
}
footer .footer_box{
    text-align: center;
    margin: 0 auto;
    padding-top: 40px;
    box-sizing: border-box;
    width: 500px;
}
.main{
    box-shadow: 0px 2px 6px 0px rgba(0, 0, 0, 0.2);
    margin-top: 30px;
    padding: 10px;
    box-sizing: border-box;
}

.crumb-nav{
    display: flex;
    justify-content: left;
    color: #fff;
    padding: 8px;
    background-color: rgb(73,112,189);
}

.main .content{
    margin-top: 20px;
}
.main .content h1{
    font-size: 28px;
    font-weight: 700;
    text-align: center;
}

.article-inf{
    color: #666;
    border-bottom: 1px solid #ccc;
    padding: 0 0 10px 0;
    margin: 0 40px;
    margin-top: 30px;
}
.article-content{
    margin: 30px;
    line-height: 40px;
    font-size: 18px;
    text-align: left;
}