* {
    margin: 0;
}

html {
    background-color: #000;
}

.top-bg {
    width: 100%;
    height: auto;
}

.content {
    margin: 0px 30px;
    position: relative;
    top: -20px;
}

.content-nav {
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 0;
}

.content-nav-item {
    background-color: inherit;
    width: 150px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #333;
}

.content-nav-item:not(:last-child) {
    border-right: 1px #666 solid;
}

.content-box {
    background-color: #fff;
    padding: 0 30px;
    margin-top: 10px;
}

.content-desc {
    background-color: inherit;
    border-bottom: 1px #eee solid;
    padding: 30px 20px;
}

.content-desc-item {
    font-size: 16px;
    margin-bottom: 10px;
    background-color: inherit;
}

.content-desc-item>span {
    background-color: inherit;
    font-size: 24px;
    color: #ff70ae;
    font-weight: bold;
}

.content-intro {
    display: flex;
    background-color: #ffffff;
    padding: 30px 0;
    border-bottom: 1px #eee solid;
}

.content-intro-left {
    width: 66%;
    background-color: inherit;
}

.content-intro-left>img {
    width: 85%;
    height: auto;
    display: block;
}

.content-intro-right {
    width: 30%;
    margin-left: 10px;
    background-color: #FFF;
}

.content-intro-title {
    display: flex;
    align-items: center;
}

.content-intro-tip {
    font-size: 12px;
    text-align: right;
    margin-top: 30px;
    margin-right: 30px;
}

.content-title-line {
    width: 1px;
    height: 20px;
    background-color: #333;
    display: inline-block;
    margin: 0 20px;
}

.content-intro-title>img {
    width: 80px;
    height: auto;
    margin-right: 20px;
}

.content-intro-card {
    background-color: #ffffff;
}

.content-intro-card>img {
    width: 40%;
    height: auto;
    display: block;
    margin: 20px auto 0;
}

.content-intro-btn {
    background-color: #ff70ae;
    font-size: 26px;
    width: 80%;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 30px auto 20px;
    border-radius: 15px;
}

.content-intro-text {
    text-align: center;
    font-size: 12px;
}

.content-about {
    padding: 30px 0 60px;
}

.content-about-title {
    font-size: 26px;
}

.content-about-desc {
    font-size: 14px;
    margin: 10px 0;
}

.content-about-row {
    display: flex;
    background-color: #f8fbf9;
}

.content-about-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: 30px;
}

.content-about-card>img {
    width: 50%;
    height: auto;
    display: block;
}

.content-about-top {
    font-size: 18px;
}

.content-about-bottom {
    font-size: 14px;
    color: #666;
}
.content-bottom{
    display: flex;
    flex:1;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    /*margin:  30px 0px;*/
    margin-bottom: 30px;
    padding-bottom: 30px;
}