.bi_blank{
    display: block;
    width: 100%;
    overflow: hidden;
}
.bi_richtext {
    font-size: 14px;
    line-height: normal;
}

.bi_richtext p {
    padding: 0 4px;
}

.bi_richtext img {
    max-width: 100% !important;
}

.bi_richtext video {
    max-width: 100% !important;
}

.bi_richtext hr {
    margin: 5px 0;
}

.bi_richtext *+h1,
.bi_richtext *+h2,
.bi_richtext *+h3,
.bi_richtext *+h4,
.bi_richtext *+h5,
.bi_richtext *+h6 {
    margin: 1.6rem 0;
}
.bi_image {
    display: block;
    margin: 0;
    padding: 0;
    height: auto;
    overflow: hidden;
}

.bi_image img {
    display: block;
    width: 100%;
}
.bi_banner {
    display: block;
    margin: 0;
    padding: 0;
    height: auto;
    overflow: hidden;
    position: relative;
}

.bi_banner ._silder.notfull { padding: 0px; }
.bi_banner ._silder img {
    display: none;
    width: 100%;
    position: relative;
    z-index: 3;
}

.bi_banner ._silder img:first-child{ display: block; }
.bi_banner ._dots {
    height:16px;
    padding: 0 10px;
    position: absolute;
    left: 0;
    right: 0;
    bottom:20px;
    opacity: 0.8;
    text-align: center;
    z-index: 4;
}

.bi_banner ._dots span {
    display: inline-block;
    margin-left:6px;
}
.bi_banner ._dots.rectangle span {
    height:4px;
    width:16px;
}
.bi_banner ._dots.square span {
    height:10px;
    width:10px;
}
.bi_banner ._dots.round span {
    height:10px;
    width:10px;
    border-radius:10px;
}
.bi_banner ._dots.none{
    display: none !important;
}
.bi_banner .swiper-pagination-bullet{
    border-radius:unset;
}
.bi_banner .swiper-button-prev:after {
    content: '<';
    font-size: 36px;
    font-family: "宋体";
}

.bi_banner .swiper-button-next:after {
    content: '>';
    font-size: 36px;
    font-family: "宋体";
}

.bi_banner .swiper-button-next,.bi_banner .swiper-button-prev {
    position: absolute;
    top: 50%;
    width: calc(var(--swiper-navigation-size)/ 44 * 27);
    height: var(--swiper-navigation-size);
    margin-top: calc(-1 * var(--swiper-navigation-size)/ 2);
    z-index: 10;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--swiper-navigation-color,var(--swiper-theme-color))
}

.bi_banner .swiper-button-prev{
    left: 10px;
    right: auto
}

.bi_banner .swiper-button-next{
    right: 10px;
    left: auto
}

.diy-single {
    display: block;
    overflow: hidden;
}

.diy-single ul {
    display: block;
    overflow: hidden;
}

.diy-single ul li {
    display: block;
    overflow: hidden;
    list-style: none;
    box-sizing: border-box;
}

.diy-single ul li .goods_image img {
    width: 100%;
}

.diy-single ul li.display_left .goods_image {
    width: 50%;
    box-sizing: border-box;
    padding-right: 30px;
    float: left;
}

.diy-single ul li.display_left .goods_info {
    width: 40%;
    float: right;
}

.diy-single ul li.display_right .goods_image {
    width: 50%;
    box-sizing: border-box;
    padding-left: 30px;
    float: right;
}

.diy-single ul li.display_right .goods_info {
    width: 40%;
    float: left;
}

.diy-single ul li .goods_info h2 {
    display: block;
    overflow: hidden;
    font-weight: bold;
    font-size: 20px;
    line-height: 25px;
    margin-top: 40px;
    margin-bottom: 20px;
}

.diy-single ul li .goods_info p {
    display: block;
    overflow: hidden;
    margin-bottom: 15px;
}

.diy-single ul li .info_align_middle {
    text-align: center;
}

.diy-single ul li .info_align_middle .calc-input {
    margin: 0 auto;
}

.diy-single ul li .info_align_right {
    text-align: right;
}

.diy-single ul li .info_align_right .calc-input {
    float: right;
}

.diy-single ul li .goods_info ._price {
    display: block;
    overflow: hidden;
    line-height: 30px;
    font-size: 28px;
    margin-bottom: 28px;
}

.diy-single ul li .goods_info ._price .line-price {
    font-size: 14px;
    text-decoration: line-through;
    color: #999;
}

.diy-single ul li .goods_info ._cart {
    display: block;
    overflow: hidden;
    font-size: 18px;
    margin-bottom: 50px;
}

.diy-single ul li .goods_info ._cart .calc-input {
    display: block;
    overflow: hidden;
    width: 200px;
    height: 50px;
    position: relative;
    text-align: center;
    border: #eee solid 1px;
}

.diy-single ul li .goods_info ._cart input {
    width: 200px;
    border: none;
    height: 50px;
    line-height: 50px;
    text-align: center;
}

.diy-single ul li .goods_info ._cart span {
    position: absolute;
    z-index: 100;
    left: 0px;
    top: 0px;
    display: block;
    overflow: hidden;
    height: 50px;
    width: 50px;
    text-align: center;
    line-height: 50px;
}

.diy-single ul li .goods_info ._cart span._inc {
    left: auto;
    right: 0px !important;
}

.diy-single ul li .add_cart {
    display: block;
    overflow: hidden;
    width: 100%;
    height: 50px;
    line-height: 50px;
    color: #333;
    background: #f2f2f2;
    text-align: center;
    font-size: 14px;
}

.diy-single ul li .buy_now {
    display: block;
    overflow: hidden;
    width: 100%;
    height: 50px;
    line-height: 50px;
    color: #fff;
    background: #ff0000;
    font-size: 14px;
    text-align: center;
}
.diy-window .item-image img {
    width: 100%;
}

.diy-window {
    display: block;
    overflow: hidden;
    clear: both;
}

.diy-window ._head {
    display: block;
    overflow: hidden;
    color: #000;
    font-weight: bold;
    text-align: center;
    line-height: normal;
    height: normal;
    font-size: 18px;
}

.diy-window ._desc {
    display: block;
    overflow: hidden;
    text-align: center;
    margin-bottom: 10px;
}

.diy-window .display {
    height: 0;
    width: 100%;
    margin: 0;
    padding-bottom: 50%;
    position: relative;
}

.diy-window ul {
    display: block;
    overflow: hidden;
    display: flex;
    flex-wrap: wrap;
}

.diy-window .xcol-2 li {
    width: 50%;
    float: left;
}

.diy-window .xcol-3 li {
    width: 33.33%;
    float: left;
}

.diy-window .xcol-4 li {
    width: 25%;
    float: left;
}

.diy-window .display img {
    width: 100%;
    height: 100%;
}

.diy-window .display .display-left {
    width: 50%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.diy-window .display .display-right {
    width: 50%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 50%;
}

.diy-window .display .display-right1 {
    width: 100%;
    height: 50%;
    position: absolute;
    top: 0;
    left: 0;
}

.diy-window .display .display-right2 {
    width: 100%;
    height: 50%;
    position: absolute;
    top: 50%;
    left: 0;
}

.diy-window .display .display-right2 .left {
    width: 50%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

.diy-window .display .display-right2 .right {
    width: 50%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 50%;
}
.bi_scroll {
    display: block;
    overflow: hidden;
    position: relative;
}

.bi_scroll .t_head {
    font-size: 40px;
    color: #363636;
    font-weight: bold;
    text-align: center;
}

.bi_scroll .t_desc {
    display: block;
    overflow: hidden;
    text-align: center;
    margin-bottom: 10px;
}

.bi_scroll .swiper_scroll{
    display: block;
    overflow: hidden;
    position: relative;
}

.bi_scroll ul {
    display: block;
    position: relative;
    white-space: nowrap;
    font-size: 0;
}

.bi_scroll ._mvleft {
    position: absolute;
    top: calc(50% - 24px);
    left: -5px;
    width: 30px;
    height: 48px;
    background: rgba(0, 0, 0, 0.2);
    z-index: 100;
    text-align: center;
    cursor: pointer;
}

.bi_scroll ._mvright {
    position: absolute;
    top: calc(50% - 24px);
    right: -5px;
    width: 30px;
    height: 48px;
    background: rgba(0, 0, 0, 0.2);
    z-index: 100;
    text-align: center;
    cursor: pointer;
}

.bi_scroll ._mvleft i,
.bi_scroll ._mvright i {
    line-height: 48px;
    font-size: 30px;
    color: #666666;
}

.bi_scroll ul li {
    display:inline-block;
    overflow: hidden;
    width: 50%;
    box-sizing: border-box;
    padding: 0;
    margin: 0;
}

@media (max-width: 991px) {
    .bi_scroll ul li {
        width: 50%;
    }
}
@media (max-width: 575px) {
    .bi_scroll ul li {
        width: 100%;
    }
}
@media (min-width: 992px) {
    .bi_scroll ul li {
        width: 25%;
    }
}

.bi_scroll ul li .item_info {
    display: block;
    overflow: hidden;
    padding: 15px;
    background: #ffffff;
}


.bi_scroll ul li .item_info .i_title {
    font-size: 20px;
    color: #333333;
    margin-bottom: 5px;
}

.bi_scroll ul li .item_info .i_desc {
    display: block;
    margin-bottom: 10px;
    overflow: hidden;
    font-size: 16px;
    color: #333333;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.bi_scroll ul li .item_img {
    max-width: 100%;
}

.bi_scroll ul li .item_img img {
    width: 100%;
}