/* 标题背景图 */
.bg-hero {
    background-color: #FEF8D9;
    background-image: url('https://static.igem.wiki/teams/4632/wiki/wiki/cover/project-cover.png');
    background-repeat: no-repeat;
    background-size: 70% auto;
    background-position: 80%;
}

/* 手机：内容居中 */

@media (max-width:830px) {
    .page-all-content {
        width: 90%;
        left: 4%
    }
    .bg-hero {
        background-size: 70% auto;
        background-position: 80% 30%;
    }
}