html,
body,
p {
    margin: 0px;
    padding: 0px;
    font-family: 'Microsoft YaHei UI';
}

html,
body,
header,
content {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

body {
    background-image: url('/img/bg2y.jpg');
    background-repeat: no-repeat;
    background-size: cover;
}

.login-group {
    margin: auto;
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    bottom: 0;
    width: 14%;
    height: 200px;
}

.btn {
    font-size: 31px;
    font-weight: bold;
    width: 100%;
    height: 52px;
    border: 1px solid #fff;
    outline: none;
    text-align: center;
    line-height: 52px;
    margin-bottom: 10px;
    border-radius: 8px;
    box-sizing: border-box;
    cursor: pointer;
}

.btn-manage,
.btn-student,
.btn-others {
    background-color: #6CEDCA;
    color: #fef6b4;
    position: relative;
}

.choice-status>.btn:hover {
    background: #037a8d
}

.btn-manage>div,
.btn-student>div,
.btn-others>div {
    margin-left: 5%;
}

.btn-manage::before,
.btn-student::before,
.btn-others::before {
    content: "";
    background-image: url("/img/arrow.png");
    background-repeat: no-repeat;
    background-size: 100%;
    position: absolute;
    display: block;
    width: 12%;
    height: 34px;
    top: 10px;
    left: 8%;
}

.btn-account {
    background-color: #4474BB;
    color: #fff;
}

.btn-key {
    background-color: #20E0C3;
    color: #fff;
}

.btn-login {
    background-color: #3A6B90;
    color: #ffaed4;
}

.login-group .btn-play {
    width: 105%;
    height: 80px;
    border: none;
    background-image: url("/img/play.png");
    background-repeat: no-repeat;
    background-size: 100%;
}

.header-box {
    width: 100%;
    height: 22%;
    overflow: hidden;
    position: fixed;
    top: 0;
    left: 0;
}

.header-box .cloud-group {
    width: 100%;
    height: 100%;
}

.header-box .bird {
    position: absolute;
    top: 60%;
    right: 33%;
    width: 4%;
    animation: birdMove .5s linear infinite alternate;
    z-index:3;
}

.header-box .sun {
    position: absolute;
    top: 20%;
    right: 7%;
    width: 5%;
    z-index: 1;
}

.cloud-group .cloud {
    float: left;
    position: absolute;
    animation: cloudMove linear infinite normal;
    z-index: 2;
}

.cloud-group .cloud-middle {
    top: 12%;
    right: -248px;
    width: 12%;
    animation-duration: 9s;
    animation-delay: 3s;
}

.cloud-group .cloud-small {
    top: 64%;
    right: -145px;
    width: 7%;
    animation-duration: 9s;
    animation-delay: 5s;
}

.cloud-group .cloud-large {
    top: 30%;
    right: -400px;
    width: 21%;
    animation-duration: 9s;
}

.cloud-small>img {
    width: 100%;
}

.cloud-middle>img {
    width: 100%;
}

.cloud-large>img {
    width: 100%;
}
@keyframes cloudMove {
    0% {
        right: -400px;
    }
    100% {
        right: 1920px;
    }
}
@keyframes birdMove {
    0% {
        top: 60%;
    }
    100% {
        top: 40%;
    }
}
.user-login {
    display: none;
}

.over-box {
    width: 16%;
    height: 230px;
    position: absolute;
    margin: auto;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}
.score{
    width: 100%;
    height: 200px;
    color: #ec6faf;
    font-size: 60px;
    text-align: center;
    font-weight: bold;
    background-repeat: no-repeat;
    background-size: cover;
    margin-bottom: 10px;
    text-shadow: 3px 3px #fff;
}
.pass{
    width: 100%;
    text-align: center;
    cursor: pointer;
    /*height: 29px;*/
}
.pass image{
    width: 80%;
}
.score{
    height: 189px;
}
@media screen and (max-width: 1680px) {
    .btn {
        font-size: 24px;
    }
    .question-content {
        font-size: 20px;
    }
    .question-content .option {
        height: 90px;
        line-height: 92px;
    }
    .question-content-box .next-page {
        font-size: 20px;
    }
    .score{
        font-size: 52px;
    }
}

@media screen and (max-width: 1440px) {
    .btn {
        font-size: 22px;
    }
    .question-content {
        font-size: 18px;
    }
    .question-content .option {
        height: 80px;
        line-height: 82px;
    }
    .question-content-box .next-page {
        font-size: 18px;
    }
    .score{
        font-size: 46px;
    }
}

@media screen and (max-width: 1200px) {
    .btn {
        font-size: 16px;
    }
    .question-content {
        font-size: 16px;
    }
    .question-content .option {
        height: 60px;
        line-height: 62px;
    }
    .question-content-box .next-page {
        font-size: 16px;
    }
    .score{
        font-size: 38px;
    }
}