/* 主页-导航栏高亮 */
header nav ul li #home {
    border-bottom: 3px solid white;
    color: white;
}

/* 主页-主体部分 */

/* 首页大下载链接 */
main .c1 {
    width: 100%;
    overflow: hidden
}

main .c1 .title {
    margin-top: 100px;
}

main .c1 .title h2 {
    font-size: 80px;
    text-align: center;
    color: white;
}

main .c1 .title h3 {
    font-size: 40px;
    text-align: center;
    color: #d5d5d5;
}

main .c1 a {
    display: block;
    height: 50px;
    width: 200px;
    margin: 100px auto;
    font-size: 25px;
    line-height: 46px;
    text-align: center;
    color: white;
    border: 2px solid white;
    border-radius: 25px;
    background-color: rgba(0, 0, 0, 0.5);
    transition: all 0.5s ease;
}

main .c1 a:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

/* 服务器及团队概况 */

main .c2 {
    border-top: 1px solid #dadada;
}

main .c2 h2 {
    font-size: 40px;
    font-weight: 700;
    color: #fff;
}

main .c2 p {
    margin-top: 25px;
    font-size: 25px;
    text-indent: 2em;
    color: #e4e4e4;
}

/* 服务器内容简介 */

main .c3 {
    margin-top: 160px;
    /* border-top: 1px solid #dadada; */
}

main .c3 h2 {
    font-size: 40px;
    font-weight: 700;
    color: #fff;
}

main .c3 .introduction ul {
    display: flex;
    flex-wrap: wrap;
}

main .c3 .introduction ul li {
    padding: 18px 5px 5px 5px;
    height: 230px;
    width: 420px;
    margin-right: 40px;
    margin-bottom: 40px;
    border: 0 1px 1px 0 solid #d3d3d3;
    box-shadow: 2px 1px 0 rgba(255, 255, 255, 0.15);
    border-radius: 15px;
}

main .c3 .introduction ul li span {
    display: inline-block;
    margin-right: 20px;
    color: #fff;
    font-size: 50px;
}

main .c3 .introduction ul li h3 {   
    display: inline-block;
    font-size: 40px;
    color: rgb(226, 226, 226);
    font-weight: 700;
}

main .c3 .introduction ul li p {
    margin-top: 15px;
    font-size: 20px;
    text-indent: 2em;
    color: #d3d3d3;
}

/* 服务器运营方式简介 */
main .c4 {
    margin-top: 160px;
    width: 100%;
    border-top: 1px solid #dadada;
}

main .c4 .operation ul {
    display: flex;
    flex-wrap: wrap;
}

main .c4 h2 {
    font-size: 40px;
    font-weight: 700;
    color: #fff;
}

main .c4 .operation ul li {
    padding: 18px 5px 5px 5px;
    height: 230px;
    width: 100%;
    margin-bottom: 40px;
    border: 0 1px 1px 0 solid #d3d3d3;
    box-shadow: 2px 1px 0 rgba(255, 255, 255, 0.15);
    border-radius: 15px;
}

main .c4 .operation ul li span {
    display: inline-block;
    margin-right: 20px;
    color: #fff;
    font-size: 50px;
}

main .c4 .operation ul li h3 {   
    display: inline-block;
    font-size: 40px;
    color: rgb(226, 226, 226);
    font-weight: 700;
}

main .c4 .operation ul li p {
    margin-top: 15px;
    font-size: 20px;
    text-indent: 2em;
    color: #d3d3d3;
}

main .c4 .cyumc h3 {
    margin-top: 25px;
    font-size: 25px;
    text-align: center;
    color: #1c1c1c;
}

/* 立即下载, 打造您的完美存档! */
main .c5 {
    display: flex;
    margin-top: 110px;
    padding-top: 50px;
    width: 100%;
    border-top: 1px solid #dadada;
    justify-content: space-between;
}

main .c5 .text {
    display: flex;
    flex: 1;
    flex-direction: column;
}

main .c5 span {
    width: 450px;
    height: 390px;
    background-position: 50% 50%;
    background-size: cover;
    background-image: url(../images/c-bg4.png);
}

main .c5 h3 {
    font-size: 35px;
    text-indent: 1em;
    color: white;
}

main .c5 p {
    margin-top: 15px;
    margin-left: 15px;
    text-indent: 2em;
    font-size: 20px;
    color: #d3d3d3;
}

main .c5 .text a {
    display: block;
    margin: 35px auto 0 auto;
    padding: 12px 17px;
    text-align: center;
    color: white;
    font-size: 18px;
    background-color: red;
    border: 3px solid white;
    border-radius: 30px;
    transition: all .3s;
}

main .c5 .text a:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

/* 底部区域 */
footer .t1 {
    margin-top: 100px;
    height: 240px;
    width: 100%;
    background-color: #7b00ff;
    border-top: 2px solid white;
    border-bottom: 2px solid white;
}

footer .t1 ul {
    display: flex;
    justify-content: center;
    margin-top: 60px;
}
footer .t1 ul li {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-right: 75px;
}

footer .t1 ul li:nth-child(3) {
    margin-right: 0px;
}

footer .t1 ul li span {
    font-size: 50px;
    color: rgb(44, 44, 44);
}

footer .t1 ul li h3 {
    color: #1c1c1c;
}

footer .t2 {
    width: 100%;
    background-color: #ffffff;
    overflow: hidden;
}

footer .t2 h3 {
    margin-top: 25px;
    text-align: center;
}

footer .t2 a {
    display: block;
    margin: 5px auto;
    text-align: center;
    color: #686868;
}