/**
* @name: index
* @author: silence
* @date: 2021-8-3 16:39
* @description：index
*/

/* 超小屏幕（手机，小于 768px） */
@media (max-width: 768px) {
    .carousel-item > a {
        display: block;
        width: 100%;
        height: 570px;
        background-size: cover;
        background-position: 30%;
        background-repeat: no-repeat;
    }
}

/* 小屏幕（平板，大于等于 768px） */
@media (min-width: 768px) {
    .carousel-item > a {
        display: block;
        width: 100%;
        height: 570px;
        background-size: cover;
        background-position: 30%;
        background-repeat: no-repeat;
    }
}

/* 中等屏幕（桌面显示器，大于等于 992px） */
@media (min-width: 992px) {
    .carousel-item > a {
        display: block;
        width: 100%;
        height: 570px;
        background-size: cover;
        background-position: 50%;
        background-repeat: no-repeat;
    }
}

/* 大屏幕（大桌面显示器，大于等于 1200px） */
@media (min-width: 1200px) {
    .carousel-item > a {
        display: block;
        width: 100%;
        height: 570px;
        background-size: cover;
        background-position: 50%;
        background-repeat: no-repeat;
    }
}


.experience {
    height: 630px;
    background-color: #fff;
}

.experience .side {
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 630px;
}

.experience .side .slogan {
    font-size: 32px;
    margin-bottom: 40px;
}

.experience .side p {
    font-size: 18px;
    margin-bottom: 30px;
}

.openai {
    height: 630px;
    background-color: #f8f8f8;
}

.openai .side {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-end;
    height: 630px;
}

.openai .side .slogan {
    font-size: 32px;
    margin-bottom: 40px;
}

.openai .side p {
    font-size: 18px;
    margin-bottom: 30px;
}


.btn {
    display: inline-block;
    width: 180px;
    height: 40px;
    line-height: 40px;
    border: 1px solid #04BEA6;
    border-radius: 3px;
    color: #04BEA6;
    font-size: 16px;
    text-align: center;
}

.btn:hover {
    background-color: #04BEA6;
    color: #fff;
    text-decoration: none;
}


.free-register {
    text-align: center;
    font-size: 44px;
    color: #fff;
    background: url(../img/index-04.jpg) no-repeat 50%;
    background-size: cover;
}

.free-register .side {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 300px;
}

.free-register .side .slogan {
    font-size: 32px;
    margin-bottom: 40px;
}

.btn-register {
    display: block;
    width: 280px;
    height: 60px;
    line-height: 60px;
    margin: 0 auto;
    color: #fff;
    border: 1px solid #fff;
    border-radius: 3px;
    font-size: 20px;
}

.btn-register:hover {
    background: #fff;
    color: #32d3a6;
    text-decoration: none;
}