html {
    font-size: 20px;
    min-width: 1200px;
}


/* 中部 */
.middle {
    width: 100%;
    min-height: 100vh;
    position: relative;
    z-index: 1;
    background-color: #015293;
    padding-top: 5rem;
}

.middle_panel {
    width: 96%;
    min-width: 50rem;
    min-height: 18rem;
    margin: 0 auto;
    /* margin-top: 5rem; */
    padding-bottom: 1rem;
    /* background-color:  white; */
    border-radius: 5px;
}
/* 标题 */
.middle_panel_title {
    width: 100%;
    height: 4rem;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.title_mn {
    display: block;
    height: 3rem;
    line-height: 3rem;
    font-size: 1.3rem;
    text-align: left;
    -webkit-writing-mode: vertical-lr;
    -webkit-text-orientation: sideways-right;
    writing-mode: tb-lr;
    -ms-writing-mode: vertical-lr;
    text-orientation: sideways-right;
    font-family: 'OyunQaganTig';
    margin-top: 1.5rem;
    padding-right: 1rem;
    color: ghostwhite;
}

.title_zh {
    display: block;
    height: 3rem;
    line-height: 3rem;
    font-size: 30px;
    text-align: left;
    font-family: "Sans-serif,Serif";
    letter-spacing: 10px;
    padding-left: 2rem;
    color: ghostwhite;
    font-weight: lighter;
    /* font-weight: bold; */
}

.title_img {
    width: 2rem;
    height: auto;
}

/* 下载区域 */
.middle_panel_download {
    margin: 1rem auto;
    width: 100%;
    min-height: 10rem;
    display: flex;
    justify-content: center;
    background-color: white;
    border-radius: 8px;
    box-shadow: 10px 16px 10px rgb(0 0 0 / 8%);
}

.middle_panel_left {
    width: 15rem;
    height: auto;
}

    .middle_panel_left > img {
        position: absolute;
        display: block;
        width: 14rem;
        height: 16rem;
    }

.middle_panel_right {
    width: calc(100% - 22rem);
    min-height: 10rem;
    padding-left: 2rem;
    margin-top: 2rem;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
}

.right_download_element {
    width: 30%;
    min-width: 13rem;
    max-width: 15rem;
    min-height: 10rem;
    /* background-color: ; */
    border-radius: 5px;
}

.download_element_logo {
    width: 4rem;
    height: 4rem;
    /* background-color: #F0F8FF; */
    position: relative;
    margin: 1rem auto;
}

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

.download_element_remark {
    width: 90%;
    min-height: 1.5rem;
    /* background-color: #808080; */
    margin: 0rem auto;
    color: black;
    text-align: center;
    font-size: 16px;
    line-height: 1.5rem;
    font-weight: bold;
}

.download_element_button {
    width: 90%;
    height: 2rem;
    background-color: #19649D;
    margin: 0.5rem auto;
    color: white;
    text-align: center;
    line-height: 2rem;
    font-size: 16px;
    font-weight: lighter;
    border-radius: 5px;
    transition: all 0.3s;
    border: 0;
    display:block;
}

    .download_element_button:hover {
        cursor: pointer;
        background-color: #1D76B8;
        transition: all 0.3s;
    }

.download_element_add {
    width: 90%;
    height: 3rem;
    margin: 0.5rem auto;
    color: red;
    text-align: center;
    line-height: 1rem;
    font-size: 14px;
    border-radius: 5px;
}

/* 中间三句标语 */
.middle_slogan {
    position: relative;
    width: 100%;
    min-height: 6rem;
    display: flex;
    justify-content: center;
    margin-top: 1rem;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    background-image: url(../img/2.png);
    background-size: 100% 100%;
    opacity: 0.3;
}

.middle_slogan_element {
    min-width: 6rem;
    height: 3rem;
    /* background-color: white; */
    display: flex;
    align-items: center;
    justify-content: center;
}

    .middle_slogan_element > i {
        display: block;
        width: 2rem;
        height: 2rem;
        text-align: center;
        line-height: 2rem;
        color: ghostwhite;
    }

    .middle_slogan_element > span {
        padding-left: 0.5rem;
        font-size: 1.2rem;
        letter-spacing: 10px;
        color: ghostwhite;
        font-weight: lighter;
    }
/* 移动端下载 */
#middle_mobile_android {
    background-color: white;
}

#middle_mobile_ios {
    background-color: #F1F6FE;
}

.middle_mobile {
    position: relative;
    width: 100%;
    min-height: 20rem;
    padding-top: 2rem;
}

.middle_mobile_panel {
    width: 90%;
    min-height: 10rem;
    margin: 0rem auto;
    padding-bottom: 2rem;
}

.mobile_panel_title {
    width: 100%;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
    position: relative;
    padding-left: 5%;
}

    .mobile_panel_title > span {
        font-size: 1.2rem;
        color: #015293;
        line-height: 3rem;
        letter-spacing: 5px;
        padding-left: 1rem;
        font-weight: bold;
    }

.mobile_panel_content {
    position: relative;
    width: 100%;
    min-height: 10rem;
    /* background-color: #808080; */
    margin: 0rem auto;
    margin-top: 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 2rem;
}

.mobile_left_phone {
    width: 15rem;
    height: auto;
    margin-left: 4rem;
}

.mobile_download_element {
    width: 30%;
    min-width: 13rem;
    max-width: 15rem;
    min-height: 10rem;
    /* background-color: ; */
    border-radius: 5px;
}

.mobile_right_code {
    width: 9rem;
    height: auto;
    margin-right: 4rem;
}

    .mobile_right_code > img {
        display: block;
        width: 7rem;
        margin: 0 auto;
        height: auto;
    }

    .mobile_right_code > span {
        display: block;
        height: 2rem;
        font-size: 18px;
        text-align: center;
        margin-top: 1rem;
    }


/* 展示样式 */
.middle_style {
    position: relative;
    width: 100%;
    background-color: white;
    min-height: 20rem;
    padding-top: 2rem;
}

.middle_style_panel {
    width: 90%;
    min-height: 10rem;
    margin: 0rem auto;
    padding-bottom: 2rem;
}

.style_panel_title {
    width: 100%;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
    position: relative;
    padding-left: 5%;
}

    .style_panel_title > span {
        font-size: 1.2rem;
        color: #015293;
        line-height: 3rem;
        letter-spacing: 5px;
        padding-left: 1rem;
        font-weight: bold;
    }

.style_panel_content {
    position: relative;
    width: 100%;
    min-height: 10rem;
    /* background-color: #808080; */
    margin: 1rem auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.style_panel_left {
    width: calc(100% - 15rem - 5rem);
    min-height: 5rem;
    margin-left: 5rem;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
}

.style_panel_right {
    width: 14rem;
}

    .style_panel_right > img {
        display: block;
        margin: 0 auto;
        width: 10rem;
    }

.style_element {
    width: calc(100% / 3 - 20px);
    min-height: 5rem;
    min-width: 8rem;
    margin-bottom: 20px;
    float: left;
    margin: 10px 10px;
}

    .style_element > img {
        display: block;
        margin: 0 auto;
    }

        .style_element > img:nth-child(1) {
            max-width: 10rem;
            max-height: 4rem;
        }

        .style_element > img:nth-child(2) {
            max-width: 10rem;
            max-height: 6rem;
        }

/* 键盘布局 */
.middle_keybord {
    position: relative;
    width: 100%;
    min-height: 14rem;
    background-color: #F1F6FE;
    padding-top: 2rem;
}

.middle_keybord_panel {
    width: 90%;
    min-height: 10rem;
    margin: 0rem auto;
    padding-bottom: 2rem;
    padding-top: 0rem;
}

.keybord_panel_title {
    width: 100%;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: flex-start;
    overflow: hidden;
    position: relative;
    padding-left: 5%;
}

    .keybord_panel_title > span {
        font-size: 1.2rem;
        color: #015293;
        line-height: 3rem;
        letter-spacing: 5px;
        padding-left: 1rem;
        font-weight: bold;
    }

.keybord_panel_content {
    position: relative;
    width: 90%;
    min-height: 10rem;
    /* background-color: #808080; */
    margin: 1rem auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 5rem;
    padding-bottom: 6rem;
}

.keybord_panel_left {
    width: 14rem;
}

    .keybord_panel_left > img {
        width: 14rem;
    }

.keybord_panel_right {
    width: calc(100% - 15rem - 5rem);
    min-height: 5rem;
    margin-left: 5rem;
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
}