/*整体布局*/
html,body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    overflow: hidden;
}
/*at-plus-container，整体容器*/
#at-plus-container {
    position: relative;
    height: 100%;
    width:180px;
    margin-left: auto;
    margin-right: auto;
}
/*bottom-positioner，参考点*/
#bottom-positioner {
    position: absolute;
    width: 100%;
    bottom: 0;
}
/*触发前，大按钮（info-bar)*/
#info-bar{
    overflow: hidden;
    position: absolute;
    opacity: 0;
    width: 26px;
    height: 26px;
    left: 77px;
    bottom: 102px;
    border-radius: 50%;
    background-color: #7E7E7E;
    visibility: hidden;
    transition: all 0.5s;
}
/*触发后，大按钮（info-bar)*/
#button:hover #info-bar {
    width: 130px;
    height: 130px;
    left: 25px;
    bottom: 150px;
    opacity: 1;
    visibility: visible;
}
/*info*/
.info {
    width: 100%;
    height: 100%;
}
/*info ul，按钮各元素*/
.info ul {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
}
/*info-bar li，按钮各元素*/
#info-bar li{
    list-style: none;
    font-weight: bold;
    text-align: center;
    margin-top: 5px;
    margin-bottom: 8px;
}
/*info-bar li img，按钮各元素的图片*/
#info-bar li img{
    vertical-align: middle;
}
/*info-bar li span，按钮各元素的文字*/
#info-bar li span{
    margin-left: 8px;
}
/*user*/
.user {
    text-align: center;
    font-size: 15px;
    color: white;
}
/*comment*/
.comment {
    text-align: center;
    font-size: 25px;
    color: white;
}
/*mine*/
.mine {
    width: 50%;
    display: inline-block;
    box-sizing: border-box;
    font-size: 15px;
    color: #0AE49b;
}
/*control-ring-container，各小按钮容器*/
#control-ring-container {
    left: 0;
    width: 180px;
    height: 180px;
    bottom: 20px;
    position: absolute;
    visibility: hidden;
}
/*button:hover #control-ring-container，触发后各小按钮容器*/
#button:hover #control-ring-container {
    visibility: visible;
}
/*control-ring li，各小按钮*/
#control-ring li{
    position: absolute;
    display: block;
    width: 32px;
    height: 32px;
    background-color: #686868;
    background-size: 18px;
    background-repeat: no-repeat;
    background-position: center;
    border-radius: 50%;
    opacity: 0;
    transition: all 0.5s;
}
/*button:hover #control-ring li，触发后各小按钮*/
#button:hover #control-ring li{
    opacity: 1;
}
/*button:hover #control-ring-container li:nth-child(1)*/
#button:hover #control-ring-container li:nth-child(1) {
    margin-top: 20px;
    margin-left: -30px;
}
/*control-ring-container li:nth-child(1)*/
#control-ring-container li:nth-child(1) {
    margin-top: 58px;
    margin-left: 35px;
    background-image: url("assets/images/nomask.png");
}
/*button:hover #control-ring-container li:nth-child(2)*/
#button:hover #control-ring-container li:nth-child(2) {
    margin-top: 60px;
    margin-left: -40px;
}
/*control-ring-container li:nth-child(2)*/
#control-ring-container li:nth-child(2) {
    margin-top: 58px;
    margin-left: 35px;
    background-image: url("assets/images/history.png");
}
/*button:hover #control-ring-container li:nth-child(3)*/
#button:hover #control-ring-container li:nth-child(3) {
    margin-top: 100px;
    margin-left: -25px;
}
/*control-ring-container li:nth-child(3)*/
#control-ring-container li:nth-child(3) {
    margin-top: 58px;
    margin-left: 35px;
    background-image: url("assets/images/message.png");
}
/*button:hover #control-ring-container li:nth-child(4)*/
#button:hover #control-ring-container li:nth-child(4) {
    margin-top: 120px;
    margin-left: 10px;
}
/*control-ring-container li:nth-child(4)*/
#control-ring-container li:nth-child(4) {
    margin-top: 58px;
    margin-left: 35px;
    background-image: url("assets/images/setting.png");
}
/*button:hover #control-ring-container li:nth-child(5)*/
#button:hover #control-ring-container li:nth-child(5) {
    margin-top: 115px;
    margin-left: 55px;
}
/*control-ring-container li:nth-child(5)*/
#control-ring-container li:nth-child(5) {
    margin-top: 58px;
    margin-left: 35px;
    background-image: url("assets/images/signout.png");
}
/*unread，未阅读数量*/
.unread {
    position: absolute;
    font-weight: bold;
    font-size: 12px;
    color: white;
    display: block;
    width: 20px;
    height: 20px;
    background-color: #FF3731;
    border-radius: 50%;
    padding-top: 2px;
    text-align: center;
    left: 20px;
    bottom: 15px;
    box-sizing: border-box;
}
/*button，按钮*/
#button {
    width: 30px;
    height: 30px;
    margin-left: 75px;
    margin-bottom: 100px;
}
/*apb*/
.apb {
    position: absolute;
    width: 26px;
    height: 26px;
    left: 77px;
    bottom: 102px;
    background-color: #989DD0;
    background-repeat: no-repeat;
    background-position: center;
    background-image: url("assets/images/atplus_white.png");
    background-size: 20px 15px;
    border-radius: 50%;
    transition: all 0.5s;
}
/*button:hover .apb*/
#button:hover .apb {
    width: 50px;
    height: 50px;
    background-color: #2F3BA2;
    background-image: url("assets/images/atplus_green.png");
    background-size: 40px 30px;
    border-radius: 50%;
    left: 65px;
    bottom: 90px;
}