.download-list {
    margin: 0 auto;
    max-width: 1080px;
}
.download-list li {
    width: 16.66%;
}
.download-list li a {
    margin: 0 auto 30px;
    width: 155px;
    height: 155px;
    position: relative;
}
.download-list li a:after {
    content: " ";
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    border: 4px solid #aaa;
}
.download-list li a:hover:after {
    border-color: #FF722E;
}
.download-list .cover {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(17,17,17,0.80);
    color: #CDAB61;
    font-size: 14px;
    font-weight: bold;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
    padding: 8px 12px 12px;
}
.download-list a:hover .cover {
    color: #FF722E;
}

@media screen and (max-width: 1060px) {
    .download-list {
        max-width: 900px;
    }
    .download-list li {
        width: 20%;
    }
}
@media screen and (max-width: 900px) {
    .download-list {
        max-width: 740px;
    }
    .download-list li {
        width: 25%;
    }
}
@media screen and (max-width: 730px) {
    .download-list {
        max-width: 580px;
    }
    .download-list li {
        width: 33.33%;
    }
}
@media screen and (max-width: 560px) {
    .download-list {
        max-width: 420px;
    }
    .download-list li {
        width: 50%;
    }
}
@media screen and (max-width: 390px) {
    .download-list {
        margin: 0 -5px;
    }
    .download-list li a {
        width: 140px;
        height: 140px;
        margin-bottom: 10px;
    }
}