.banner{width: 80%; margin: 0 auto;padding-top:90px}
.index_404 img{width:70%;}
.index_404{text-align: center;position: relative;min-height: 12rem;}
.p_404{font-size: 16px; line-height: 25px;margin-top: 1rem;}
.p_404 a{font-size: 16px; color:#1a659f;text-decoration: underline;}



@media screen and (max-width: 768px){
.index_404 { min-height: 6rem;}
.p_404 { font-size: 0.2rem; margin-top: 0.5rem;}
.p_404 a { font-size: 0.2rem;}

}