/*
darktype
*/
.translate-btn a {
    font-family: fz;
    letter-spacing: 0.2em;
    padding: 0 15px;
    border: 0.5px solid black;
    text-align: center;
    background-color: transparent;
    border-radius: 5px;
    font-size: 1.3rem;
    line-height: 1.4;
    position: fixed;
    right: 100px;
    top: 10px;
    cursor: pointer;
    transition: background-color 0.3s;
    z-index: 9999;
}

.translate-btn:hover a {
    background-color: black;
    color: white;
}

.darktype {
    background-color: #111111;
    color:#FFFFFF;
}

.darktype .main_body_text, .darktype .lake_menu_list dt {
    color: rgba(255,255,255,0.9)
}

.gnav {
    transition: .6s;
}

.darktype .gnav {
    background-color: #111111;
    color: #ffffff;
}

.darktype img {
    opacity: 0.8;
}

.darktype h2,
.darktype h3,
.darktype h4,
.darktype span,
.darktype dt,
.darktype .river_list_feature dt{
    color: rgba(255, 255, 255, 0.9)
}


.darktype .menu div:before {
    border-image-source: url(../images/common/img_border_wt_1px_dark.png);
}

.darktype .menu div:after {
    border-image-source: url(../images/common/img_border_wt_1px_dark.png);
}

.darktype .gnav-main__item:before {
    border-image-source: url(../images/common/img_border_bk_1px_dark.png);
}

.darktype .gnav-main__item:after {
    border-image-source: url(../images/common/img_border_bk_1px_dark.png);
}

.darktype .gnav-news-list__item:after {
    background-image: url(../images/common/icn_rhombus_dark.svg);
}

.darktype .separator_line:before {
    border-image-source: url(../images/common/img_border_bk_1px_dark.png);
}

.darktype .separator_rhombus:before {
    background-image: url(../images/common/icn_rhombus_dark.svg);
}

.darktype .separator_line:before {
    border-image-source: url(../images/common/img_border_bk_1px_dark.png);
}

.darktype #loader {
    color: #111111;
}

.darktype #loader div {
    background-color: #FFFFFF;
}

.darktype .gnav-main__item a:hover,
.darktype .gnav-main__item a.current,
.darktype .gnav-main__item div:hover,
.darktype .gnav-main__item div.current {
    background-color: rgba(255, 255, 255, 0.03);
}

.darktype .mountain_wrap .swiper-pagination-bullet:before  {
    background-color: #FFFFFF;
}

.darktype .bird {
    background-image: url(../images/common/bird-cells-new-dark.svg);
}

.darktype #global-footer {
    /* 方案二*/
    background-color: #1c1c1d;
    background-image: 
        radial-gradient(closest-side, rgba(52, 108, 156, 1), rgba(235, 105, 78, 0)),
        radial-gradient(closest-side, rgb(48, 60, 68, 1), rgba(243, 11, 164, 0)), 
        radial-gradient(closest-side, rgb(38, 67, 87, 1), rgba(254, 234, 131, 0)), 
        radial-gradient(closest-side, rgba(17, 101, 154, 1), rgba(170, 142, 245, 0)), 
        radial-gradient(closest-side, rgb(12, 17, 39, 1), rgba(248, 192, 147, 0));
}

.darktype #global-footer .footer-text {
    color:#ccc
}
/* river_list -------------------------------------- */

.river_list {
    max-width: 900px;
    margin: 0px auto;
}

@media screen and (max-width: 768px) {
    .river_list {
        max-width: 600px;
    }
}


/* river_list_item -------------------------------------- */

.river_list_item {
    display: flex;
    margin-bottom: 180px;
    -webkit-box-orient: horizontal;
    -webkit-box-direction: reverse;
    flex-direction: row-reverse;
    -webkit-box-pack: justify;
    justify-content: space-between;
    -webkit-box-align: center;
    align-items: center;
}


@media screen and (min-width: 769px) {
    .river_list_item {
        width: 1000px;
    }
}



@media screen and (max-width: 768px) {
    .river_list_item {
        margin-bottom: 100px;
        display: block;
    }
}

.river_list_item:nth-child(2n) {
    -webkit-box-orient: horizontal;
    -webkit-box-direction: normal;
    flex-direction: row;
}

/* image-text -------------------------------------- */
.river_list_image,
.river_list_wrap {
    max-width: calc(50% - 60px);
    flex-basis: calc(50% - 60px);
    position: relative;
}

@media screen and (max-width: 992px) {
    .river_list_image,
    .river_list_wrap {
        max-width: calc(50% - 30px);
        flex-basis: calc(50% - 30px);
    }
}

@media screen and (max-width: 768px) {
    .river_list_image,
    .river_list_wrap {
        max-width: none;
    }
}

.river_list_image {
    position: relative;
    z-index: 0;
    padding: 0;
    margin: 0;
}

@media screen and (max-width: 768px) {
    .river_list_image {
        margin-bottom: 40px;
    }
}

.river_list_type {
    width: 32px;
    position: absolute;
    top: -20px;
    right: -16px;
    z-index: 1;
    border-width: 2px;
    border-style: solid;
    border-color: initial;
    border-image: url("/images/river/icn_frame.svg") 2 / 2px / 0px repeat;
}

.river_list_type span {
    letter-spacing: 0.2em;
    -webkit-writing-mode: vertical-rl;
    writing-mode: vertical-rl;
    font-feature-settings: normal;
    font-size: 1.8rem;
    line-height: 2.5;
    width: 100%;
    padding: 10px 0px;
    display: flex;
    background-color: black;
    -webkit-box-pack: center;
    justify-content: center;
    -webkit-box-align: center;
    align-items: center;
    color: white;
}

.river_list_type span {
    letter-spacing: 0.1em;
}

@media screen and (max-width: 768px) {
    .river_list_type span {
        font-size: 1.1rem;
    }
}


/* river_list_wrapper  -------------------------------------- */

.river_list_wrap .main_body_text {
    margin-top: 50px;
}

.river_list_name {
    font-size: 7vh;
    line-height: 64px;
    color: black;
    margin: 0;
    padding: 0;
}

.river_list_sub {
    color: black;
    margin: 0;
    font-size: 2.5vh;
}

@media screen and (max-width: 576px) {
    .river_list_name {
        font-size: 6vh;
    }
}

.river_list_feature {
    margin-top: 20px;
}

.river_list_feature_title {
    font-family: fz;
    display: flex;
    font-size: 3vh;
    line-height: 1.8;
    color: black;
    -webkit-box-align: center;
    align-items: center;
    margin: 0;
}

.river_list_feature_title::before {
    content: "";
    width: 20px;
    height: 20px;
    display: block;
    background-image: url("/images/river/icon_dcircle.svg");
    background-size: 100%;
    margin-right: 5px;
}

.river_list_feature dl {
    margin-top: 10px;
    display: flex;
    flex-wrap: wrap;
}

.river_list_feature dt,
.river_list_feature dd {
    font-family: fz;
    letter-spacing: normal;
    line-height: 2.5;
}

@media screen and (max-width: 768px) {
    .river_list_feature dt,
    .river_list_feature dd {
        font-size: 0.5rem;
    }
}

.river_list_feature dt {
    max-width: 80px;
    flex-basis: 80px;
    color: black;
}

.river_list_feature dd {
    max-width: calc(100% - 80px);
    flex-basis: calc(100% - 80px);
}

/* swiper -------------------------------------- */

.swiper-horizontal>.swiper-pagination-bullets, 
.swiper-pagination-bullets.swiper-pagination-horizontal, 
.swiper-pagination-custom, .swiper-pagination-fraction {
    bottom: 0;
    left: auto;
    width: 15px;
    right: -20px;
}

.river_list .swiper-pagination-bullet {
    width: 15px;
    height: 15px;
    margin: 0 !important;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    background-color: transparent !important;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    opacity: 1;
}

.river_list .swiper-pagination-bullet:before {
    content: "";
    width: 5px;
    height: 5px;
    display: block;
    border: 1px solid black;
    border-radius: 50%;
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
}

.river_list .swiper-pagination-bullet.swiper-pagination-bullet-active:before {
    background-color: black;
}

/* separator_rhombus -------------------------------------- */

.separator_rhombus {
    position: relative;
}

.separator_rhombus:before {
    content: "";
    width: 300px;
    height: 6px;
    margin: 300px auto;
    display: block;
    background-image: url("../images/common/icn_rhombus.svg");
    background-size: auto 100%;
}

@media screen and (max-width: 768px) {
    .separator_rhombus:before {
        width: 180px;
        margin: 25vw auto;
    }
}

.river_other {
    max-width: 700px;
    margin: 0px auto;
    padding: 0;
    display: flex;
    -webkit-box-pack: justify;
    justify-content: space-between;
}

@media screen and (max-width: 576px) {
    .river_other {
        display: block;
    }
}

.river_other_item {
    max-width: calc(50% - 60px);
    flex-basis: calc(50% - 60px);
}

@media screen and (max-width: 768px) {
    .river_other_item {
        max-width: calc(50% - 30px);
        flex-basis: calc(50% - 30px);
    }
}

@media screen and (max-width: 576px) {
    .river_other_item {
        max-width: 250px;
        width: 80%;
        margin: 10vw auto;
    }
}

.river_other_image {
    margin: 0;
    margin-bottom: 20px;
}

.river_other_title {
    margin-bottom: 10px;
    font-size: 1.8rem;
    line-height: 1.8;
    color: black;
}

.river_data {
    max-width: 900px;
    margin: 0px auto;
}

.river_data_sec {
    max-width: 700px;
    margin: 0px auto 80px;
}

.river_footer_img {
    max-width: 900px;
    margin: 0px auto;
}