* {
    margin: 0;
    padding: 0;
}

body {
   /* background: url(../img/BG.png) no-repeat center center;*/
    background-size: cover;
    background-attachment: fixed;
    background-color: #CCCCCC;
    position: fixed;
    height: 100%;
    width: 100%;
}
.bj{
    position: fixed;
    height: 100%;
    width: 100%;
}
.bj img{
    width:100%;
    height: 100%;
}
.main {
    width: 100%;
    height: 100%;
    position: relative;
}

.main>img {
    width: 100%;
    height: 100%;
}

.logo {
    position: absolute;
    top: 26%;
    left: 47%;
    transform: translate3d(-40%, -50%, 0);
    -webkit-transform: translate3d(-40%, -50%, 0);
}

.aaa {
    top: 10%;
    display: inline-block;
    left: -74px;
    width: 100%;
    height:100%;
}
.aaa img{
    position: absolute;
    width: 100%;
    height:100%;
}

.first {
    padding-left: 20px;
    font-size: 6.7vh;
    display: inline-block;
    font-family: arial;
}

.second {
    padding-left: 3px;
    font-size: 6vh;
    font-family: arial;
}

.login {
    position: absolute;
    width: 640px;
    left: 50%;
    margin-left: -320px;
    top: 18%;
    height: 50%;
}

.right-top {
    right: 0;
    top: 0;
    position: absolute;
}

.left-top {
    left: 0;
    top: 0;
    position: absolute;
}

.left-button {
    left: 0;
    bottom: 0;
    position: absolute;
}

.right-button {
    right: 0;
    bottom: 0;
    position: absolute;
}

.headline {
    position: absolute;
    top: 7%;
    font-size: 5vh;
    color: #ffffff;
    text-align: center;
    left: 50%;
    margin-left: -30px;
}

.input {
    height: 15%;
    width: 368px;
    margin-left: 158px;
    position: absolute;
    border: 1px solid #5473a3;
    border-radius: 5px;
    top: 20%;
}

.photo {
    width: 67px;
    background-color: #5473a3;
    position: absolute;
    top: 0;
    left: 0;
    border-radius: 5px 0 0 5px;
    text-align: center;
    height: 100%;
}

.photo>img {
    max-width: 20px;
    max-height: 20px;
    display: block;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate3d(-50%, -50%, 0);
    -webkit-transform: translate3d(-50%, -50%, 0);
}

.user {
    position: absolute;
    height: 12%;
    top: 31%;
    width: 51%;
}

.paw {
    position: absolute;
    height: 12%;
    top: 50%;
    width: 51%;
}

/*.login input[type=text],*/
.login input[type=password] {
    width: 251px;
    height: 91%;
    font-size: 18px;
    font-family: 微软雅黑;
    color: #3333d4;
    border-radius: 5px;
    box-sizing: border-box;
    background-color: transparent;
    color: black;
    border: 0;
    outline: medium;
    display: block;
    position: absolute;
    top: 49%;
    transform: translate3d(-50%, -50%, 0);
    -webkit-transform: translate3d(-50%, -50%, 0);
    margin-left: 197px;
}
#username{
    width: 251px;
    height: 91%;
    font-size: 18px;
    font-family: 微软雅黑;
    color: #3333d4;
    border-radius: 5px;
    box-sizing: border-box;
    background-color: transparent;
    color: black;
    border: 0;
    outline: medium;
    display: block;
    position: absolute;
    top: 49%;
    transform: translate3d(-50%, -50%, 0);
    -webkit-transform: translate3d(-50%, -50%, 0);
    margin-left: 197px;
}

.login input[type=checkbox] {
    padding-top: 70%;
    width: 17px;
    height: 17px;
    vertical-align: middle;
    /*  文字与复选框对齐 */
}

.checkbox {
    color: white;
    position: absolute;
    left: 135px;
    cursor: pointer;
    top: 70%;
}

.checkbox span {
    margin-left: 200px;
}

button {
    position: absolute;
    font-size: 24px;
    line-height: 24px;
    height: 13%;
    width: 50%;
    right: 25%;
    border: 1px solid#0264a4;
    color: #e7eaff;
    text-align: center;
    border-radius: 10px;
    outline: none;
    cursor: pointer;
    outline: 0;
    top: 75%;
    margin-left: 10%;
    left: 15%;
    width: 51%;
    background: #5473a3 !important;
}

.footer {
    color: white;
    position: absolute;
    bottom: 5%;
    width: 100%;
    text-align: center;
}