.body {
    background: #fff;
}

.invitation_container {
    padding-top: 2rem;
    /*background: #f5f5f5;*/
}

.invitation_bg_div {
    position: relative;
    font-size: 0;
}

.invitation_bg_div>img {
    width: 302%;
    position: relative;
    left: -106%;
}

.invitation_bg_div_txt {
    width: 100%;
    position: absolute;
    top: 0;
    text-align: left;
    margin-top: 3rem;
    margin-left: 30px;
    text-shadow: 6px 0 4px rgba(15,60,129,0.2);
}

.invitation_bg_div_txt>img {
    margin-bottom: 1rem;
}

.invitation_bg_div_txt>p {
    color: #fff;
    line-height: 1.5;
    /*font-weight: bold;*/
}

.territory {
    background: #f5f5f5;
    margin-top: 3rem;
    padding-top: 2rem;
}

.invitation_bg_div_txt .lang_p13_1 {
    font-size: 1.2rem;
    font-weight: bold;
    color: #e6373c;
    line-height: 1.1;
}

.lang_p13_2 {
    font-size: 0.35rem;
    font-weight: normal;
    width: 400px;
}

.lang_p13_3 {
    line-height: 1rem;
    font-size: 0.37rem;
    font-weight: normal;
    /*letter-spacing: 0.01rem;*/
}

.lang_p13_3 span {}

.lang_p13_9 {
    font-size: 0.8rem;
    font-weight: bold;
    line-height: 1;
    margin-top: 1.1rem;
}


.lang_p13_6 {
    font-size: 0.6rem;
    line-height: 1;
    margin-top: 1.1rem;
}

.lang_p13_7 {
    font-size: 0.6rem;
    font-weight: normal;
    line-height: 1;
}

.territory>h3 {
    text-align: center;
    line-height: 1.5;
    letter-spacing: 0;
}

.invitation_logo {
    width: 2.5rem;
    margin-bottom: 1rem;
}

.invitation_title_en {}

.invitation_title_en>p {
    color: #fff;
}

.invitation_guest_container {
    width: 100%;
    padding: 2rem 1rem 3rem;
    text-align: center;
    /*margin-top: 1rem;*/
    background: #f5f5f5;
}

.invitation_guest_nav,
.invitation_card_nav {
    display: flex;
    justify-content: space-around;
    font-size: 0.6rem;
    color: #999;
    margin-bottom: 1.7rem;
    letter-spacing: 0;
}

.invitation_card_nav {
    color: #999;
}

.invitation_guest_nav_item {
    flex: 1;
    padding-bottom: 0.3rem;
    border-bottom: 0.05rem solid #999;
}

.nav_item_active {
    color: #333;
    border-bottom: 0.12rem solid #e8383d;
}

.guest_list {
    width: 100%;
    margin-bottom: 2rem;
}

.guest_list_item {
    margin-top: 0.8rem;
    background: #fff;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    -o-box-shadow: 3px 3px 10px rgba(0, 0, 0, .2);
    -moz-box-shadow: 3px 3px 10px rgba(0, 0, 0, .2);
    -webkit-box-shadow: 3px 3px 10px rgba(0, 0, 0, .2);
    box-shadow: 1px 1px 10px rgba(0, 0, 0, .2);
}

.guest_list_item_img,
.guest_list_item_name {
    flex: 1;
    width: 100%;
}

.guest_list_item_img {
    width: 100%;
    height: 50%;
    font-size: 0;
}

.guest_list_item_img>img {
    width: 100%;
    height: 50%;
    box-shadow: 1px 1px 10px rgba(0, 0, 0, .2);
}

.guest_list_item_name {
    width: 100%;
    height: 50%;
    position: relative;
    font-size: 0;
}

.guest_list_item_name>img {
    opacity: 0;
    width: 100%;
    font-size: 0;
}

.guest_list_item_name_txt {
    position: absolute;
    text-align: center;
    top: 0;
    width: 94%;
    height: 50%;
    left: 0;
    bottom: 0;
    right: 0;
    margin: auto;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.guest_list_item_name_txt>div {
    font-size: 0.65rem;
    line-height: 1.6;
}

.guest_list_item_name_txt_title {
    margin: 0 0 1.2rem;
    font-weight: bold;
    font-size: 0.9rem;
}

.commit_btn {
    background: #ccc;
    color: #fff;
    font-size: 0.7rem;
    width: 30%;
    vertical-align: middle;
    border-radius: 0.1rem;
    text-align: center;
    cursor: pointer;
    margin: 2rem auto 1rem;
    padding: 0.5rem 0;
}

.commit_btn {
    width: 100%;
    margin: 1.5rem auto 0;
}

.conference,
.invite_card,
.partner {
    padding: 3rem 1rem 0;
    background: #fff;
    text-align: center;
}





/*.partner{
    padding: 3rem 1rem 0;

}*/

.invite_card {
    padding: 1rem 0 0;
}

.conference {
    padding: 2rem 1rem;
}

.conference_container {}

.conference_item {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    -o-box-shadow: 3px 3px 10px rgba(0, 0, 0, .2);
    -moz-box-shadow: 3px 3px 10px rgba(0, 0, 0, .2);
    -webkit-box-shadow: 3px 3px 10px rgba(0, 0, 0, .2);
    box-shadow: 1px 1px 10px rgba(0, 0, 0, .2);
}

.conference_item_img>img {
    width: 100%;
}

.conference_item_txt {
    margin: 1rem 0 0;
}

.conference_item_txt_tag {
    font-size: 0.7rem;
    color: #fff;
    font-weight: bold;
    margin: 0 auto;
}

.conference_item_txt_tag span {
    background-color: #505050;
    padding: 0.1rem 0.2rem;
}

.conference_item_txt_title {
    width: 90%;
    font-weight: bold;
    font-size: 0.9rem;
    letter-spacing: 0;
    margin: 1rem auto;
    line-height: 1.5;
}

.conference_item_txt_sub {
    text-indent: 1.2rem;
    line-height: 1.5;
    margin: 1rem 1rem 1.8rem 1rem;
    text-align: justify;
    letter-spacing: 0;
}

.conference_item_txt_sub p {
    font-size: 0.6rem;
}

.conference_item_txt_sub .fix_p{
    text-indent: 0;
    display: flex;
}

.conference_item_txt_sub .margin_t{
    margin-top: 1rem;
}

.invite_card_container {
    background: #1e1e1e;
    padding: 3rem 1rem;
    margin-top: 2rem;
    background-image: url(../images/invitation/spbbt.png);
    background-position: 0 281px;
    background-size: 100%;
    background-repeat: no-repeat;
}

.invite_nav_item_active {
    color: #fff;
    border-bottom: 0.12rem solid #e8383d;
}

.invitation_card_input {
    margin-top: 1rem;
    font-size: 0.7rem;
}

.invitation_card_title {
    color: #fff;
    font-size: 0.6rem;
}

.invitation_card_input_list {}

.invitation_card_input_list_item {
    border: 1px solid hsla(0, 0%, 100%, .8);
    font-size: 0.7rem;
    margin: 1.1rem auto 0;
    line-height: 2rem;
    height: 2rem;
    width: 100%;
    border-radius: 0.2rem;
    background-color: #2b2b2b;
    position: relative;
}

input {
    border: none;
    float: left;
    background: #2b2b2b;
    color: #fff;
    width: 89%;
    font-size: 0.6rem;
    height: 100%;
    line-height: 1;
    margin-left: 0.3rem;
}

.invitation_card_input_list_item>img {
    position: absolute;
    top: 0.5rem;
    right: 0.3rem;
    display: inline-block;
}

.invitation_card_detail {
    margin-top: 3rem;
    font-size: 0.6rem;
    color: #fff;
}

.invitation_card_detail_title {
    font-weight: 600;
    color: #e6373c;
    margin-top: 1.5rem;
}

.invitation_card_detail_txt {
    margin-top: 0.6rem;
}

.partner {}

.logo_container {
    padding: 2rem 0 1rem;
    display: flex;
    width: 100%;
    flex-wrap: wrap;
    border-bottom: 1px solid #ccc;
}

.logo_container_item {
    width: 50%;
}

.logo_container_item>img {
    width: 100%;
    text-align: center;
}

.btn_active {
    background: #5d5656;
}

.drop-down-content {
    position: absolute;
    top: 48px;
    left: -.5%;
    display: block;
    width: 101%;
    opacity: 0;
    height: 0;
    overflow: hidden;
    transition: all .3s ease;
    border-radius: 5px;
    border: 1px solid #fff;
    background-color: #e3e3e3;
    font-size: 0;
    text-align: left;
    z-index: 100;
}

.drop-down-content_active {
    opacity: 1;
    height: 9rem;
    z-index: 100;
    transition: opacity .3s ease;
    transition: height .3s ease;
    font-size: 0.5rem;
    overflow-x: hidden;
    overflow-y: scroll;
    -webkit-overflow-scrolling: auto;
}

::-webkit-scrollbar {
    width: 3px;
    height: 3px;
}

::-webkit-scrollbar-thumb:vertical {
    background-color: #a6a6a6;
    border-radius: 3px;
}

::-webkit-scrollbar-track-piece:vertical:decrement,
::-webkit-scrollbar-track-piece:vertical:increment {
    background-color: rgba(166, 166, 166, 0.2);
}

.drop-down-content>li {
    line-height: 3.5;
    padding-left: 0.3rem;
}

.dropActive {
    background-color: #c8c8c8;
}

.drop-down-content_coor_active {
    opacity: 1;
    height: 6.5rem;
    font-size: 0.45rem;
    z-index: 100;
    transition: opacity .3s ease;
    transition: height .3s ease;
        overflow-x: hidden;
    overflow-y: scroll;
    -webkit-overflow-scrolling:auto;
}


.name_png {
    width: 40%;
    margin-bottom: 0.5rem;
}

.fix_research_img {
    position: relative;
    top: 0.3rem;
    left: 0.7rem;
}

.note_sty {
    font-size: 0.5rem;
    background-color: #404040;
    color: #b1b1b1;
    text-align: left;
    padding: 0.2rem 0.5rem;
    border-radius: 0.2rem;
    margin-top: 0.5rem;
    display: none;
    align-items: flex-start;
}

.note_close {
    width: 0.7rem;
    position: relative;
    top: 0.1rem;
}







/*iphone 8*/

@media screen and (min-width: 375px) and (max-width: 410px) {
    html,
    body {
        font: 24px "Microsoft YaHei", "Microsoft JhengHei";
    }
    .invitation_bg_div_txt>p {}
    .invitation_title_en>p {}
    .guest_list_item_name_txt>div {}
    .guest_list_item_name_txt_title {}
    .guest_btn,
    .commit_btn {}
}

@media screen and (min-width: 351px) and (max-width: 374px) {
    html,
    body {
        font: 24px "Microsoft YaHei", "Microsoft JhengHei";
    }
    .invitation_bg_div_txt>p {}
    .invitation_title_en>p {}
    .guest_list_item_name_txt>div {}
    .guest_list_item_name_txt_title {}
    .guest_btn,
    .commit_btn {}
    .invitation_guest_nav,
    .invitation_card_nav {}
    .conference_item_txt_sub {}
    .conference_item_txt_title {
        font-size: 17px;
    }
    .invitation_card_input {}
    .invitation_card_detail {
        font-size: 16px;
    }
}














/*iphone se*/

@media screen and (min-width: 300px) and (max-width: 350px) {
    html,
    body {
        font: 21px "Microsoft YaHei", "Microsoft JhengHei";
    }
    .invitation_bg_div_txt>p {}
    .invitation_title_en>p {}
    .guest_list_item_name_txt>div {}
    .guest_list_item_name_txt_title {}
    .guest_btn,
    .commit_btn {}
    .invitation_guest_nav,
    .invitation_card_nav {}
    .conference_item_txt_sub {
        font-size: 14px;
    }
    .conference_item_txt_title {
        font-size: 17px;
    }
    .invitation_card_input {
        font-size: 16px;
    }
    .invitation_card_detail {
        font-size: 16px;
    }
}