.main {
    display: flex;
    flex-direction: column;
}

header {
    position: relative;
    background-color: rgb(57, 49, 49, .6);
}

.header-banner {
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    background: url("../img/main-banner.png") no-repeat;
    background-size: cover;
    z-index: -1;
}

.header-top {
    display: flex;
    padding-top: 20px;
    padding-left: 8vw;
}

.header-top-left {
    display: flex;
    align-items: center;
    margin-right: 50px;
}

.header-top-left img {
    width: 40px;
    margin-right: 20px;
    border-radius: 50%;
}

.header-top-left h1 {
    font-size: 24px;
    color: #FFFFFF;
    font-weight: bold;
}

.header-top-right {
    display: flex;
    align-items: center;
    color: #FFFFFF;
}

.header-top-right div {
    font-size: 16px;
    margin-right: 50px;
}

.header-center {
    margin-top: 84px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header-center .header-center-top {
    margin-bottom: 30px;
    font-family: '优设标题', serif;
    color: #FFFFFF;
    font-size: 48px;
}

.header-center .header-center-bottom {
    width: 40vw;
    background: #FFFFFF;
    white-space: nowrap;
    display: flex;
    border-radius: 12px;
    overflow-y: hidden;
    border: 1px solid rgb(121, 121, 121);
}

.header-center .header-center-bottom .header-center-bottom-input {
    flex: 1;
}

.header-center .header-center-bottom input {
    height: 100%;
    width: 100%;
    padding: 0 10px;
    display: block;
    outline: none;
    border: none;
    font-size: 18px;
}

.header-center .header-center-bottom .header-center-bottom-search-icon {
    display: flex;
    justify-content: center;
    align-items: center;
}

.header-center .header-center-bottom .point-cover {
    padding: 16px;
}

.header-center .header-center-bottom .point-cover:hover {
    background-color: #FE4066;
    padding: 16px 24px;
}

.header-bottom {
    width: 40vw;
    margin: 90px auto 0;
    padding-bottom: 90px;
    display: flex;
    justify-content: space-between;
}

.header-bottom .header-bottom-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 18px;
}

.header-bottom .header-bottom-item div {
    margin-bottom: 20px;
}

.header-bottom .point-cover .header-bottom-item-name {
    color: #FFFFFF;
}

.header-bottom .point-cover:hover .header-bottom-item-name {
    color: #FE4066;
}

.content {
    padding: 50px 0;
}

.content-title {
    display: flex;
    justify-content: center;
    font-family: '优设标题', serif;
    font-size: 28px;
    color: #555555;
}

.content-list {
    margin-top: 50px;
    padding: 0 20vw;
    display: grid;
    grid-gap: 60px 20px;
    grid-template-columns: repeat(3, 1fr);
}

.content-list-item {
    display: flex;
    flex-direction: column;
}

.content-list-item .content-item-img {
    border-radius: 12px;
    margin-bottom: 20px;
    padding: 50px 20px;
    text-align: center;
}

.content-list-item:nth-child(1) .content-item-img {
    background-color: #FE4066;
}

.content-list-item:nth-child(2) .content-item-img {
    background-color: #F85953;
}

.content-list-item:nth-child(3) .content-item-img {
    background-color: #0252AC;
}

.content-list-item:nth-child(4) .content-item-img {
    background-color: #03897E;
}

.content-list-item:nth-child(5) .content-item-img {
    background-color: #03897E;
}

.content-list-item:nth-child(6) .content-item-img {
    background-color: #F29700;
}

.content-list-item .content-item-name {
    font-size: 20px;
    margin-bottom: 15px;
    color: #555555;
    text-align: center;
    font-weight: bold;
}

.content-list-item .content-item-introduce {
    font-size: 16px;
    color: #555555;
    text-align: center;
}

.classroom {
    padding: 50px 0;
    background-color: #EDEDED;
}

.content-introduce {
    margin-top: 30px;
    text-align: center;
    font-size: 16px;
    color: #555555;
    line-height: 150%;
}

.classroom-list {
    margin-top: 50px;
    padding: 0 20vw;
    display: grid;
    grid-gap: 20px;
    grid-template-columns: repeat(2, 1fr);
}

.classroom-list-item {
    padding: 30px;
    border-radius: 12px;
    background-color: #FFFFFF;

}

.classroom-item-title {
    margin-bottom: 20px;
    font-size: 24px;
    color: #555555;
    font-family: '优设标题', serif;
}

.classroom-list-item ul {
    padding-left: 20px;
}

.classroom-list-item ul li {
    line-height: 150%;
    font-size: 16px;
    color: #555555;
}

.medicinal {
    padding: 50px 0;
    background-color: #FFFFFF;
}

footer {
    padding: 50px 0;
    background-color: #FE4066;
}

.content-title-white {
    display: flex;
    justify-content: center;
    font-family: '优设标题', serif;
    font-size: 36px;
    color: #FFFFFF;
}

.content-introduce-white {
    margin-top: 30px;
    text-align: center;
    font-size: 16px;
    color: #FFFFFF;
}

.message {
    padding: 160px 0 0;
    text-align: center;
}

.message button {
    padding: 20px 120px;
    border-radius: 12px;
    background-color: #FFFFFF;
    font-size: 18px;
    color: #FE4066;
    outline: none;
    border: none;
}

.footer {
    padding: 50px 20vw;

    & .footer-top {
        margin-bottom: 20px;
        display: flex;
        justify-content: space-between;

        & .footer-top-item {

            & .footer-title {
                font-size: 16px;
                color: #8C8889;
                display: flex;
                align-items: center;
                margin-bottom: 10px;

                & img {
                    width: 40px;
                    margin-right: 20px;
                    border-radius: 50%;
                }

                & .big-title {
                    font-size: 24px;
                }
            }

            & .footer-content {
                font-size: 14px;
                color: #8C8889;
                margin-bottom: 6px;


                a:hover {
                    color: #FE4066;
                }
            }
        }
    }

    & .footer-bottom {
        font-size: 14px;
        color: #8C8889;

        & .footer-bottom-left {
            margin-bottom: 20px;

            & span {
                margin-right: 10px;
            }

            & a {
                color: #8C8889;
                margin-right: 10px;
            }

            a:hover {
                color: #FE4066;
            }
        }
    }
}

.friend-link {
    padding: 0 20vw;

    & .link-content {
        display: flex;
        padding: 50px 0;
        border-top: 1px solid #8C8889;
    }

    & .left-title {
        margin-right: 20px;
        flex-shrink: 0;
        font-size: 16px;
        color: #8C8889;
    }

    & .link-list {
        flex: 1;
        font-size: 14px;
        color: #8C8889;
        display: flex;
        flex-wrap: wrap;

        & .link-list-item {
            width: 120px;
            margin: 0 10px 10px 0;

            & a {
                color: #8C8889;
            }

            a:hover {
                color: #FE4066;
            }
        }
    }
}