.header-image{background-image:url(http://www.slrbs.com/skin/jubao2/images/banner.jpg);background-size:cover;background-position:center;height:400px}
nav{background-color:#1e40af;color:#fff;padding-top:.5rem;padding-bottom:.5rem}
@media (max-width:768px){.header-image{height:200px}
.mt-4{width:90%}
.pc-width h1{font-size:1.4rem;width:95%;margin-left:auto;margin-right:auto}
.time-source{flex-direction:column;align-items:center}
.time-source span{margin-bottom:.5rem}
}
.custom-scrollbar::-webkit-scrollbar{height:6px}
.custom-scrollbar::-webkit-scrollbar-thumb{background-color:rgba(255,255,255,.3);border-radius:3px}
.custom-scrollbar::-webkit-scrollbar-track{background-color:transparent}
.pc-width{max-width:860px;margin-left:auto;margin-right:auto}
.time-source{margin-top:2rem;margin-bottom:2rem}
.article-content p{line-height:1.8;color:#333;margin-bottom:20px;text-align:justify}
.article-content img {
            max-width: 100%;
            height: auto;display: block;
    margin-left: auto;
    margin-right: auto;
    margin-top: 1rem;
    margin-bottom: 1rem;
        }
footer p{font-size:.875rem;line-height:2}