:root {
    --color3: #333;
    --color9: #999;
    --colore: #eeeeee;
    --color0: #000;
    --color2a: #2a70c1;
    --f5f5: #f5f5f5;

    --font45: 1.125rem;
    --font34: .85rem;
    --font24: .6rem;
    --font18: .45rem;
    --font16: .4rem;
    --font14: .35rem;
}

html {
    @font-face {
        font-family: 'you';
        src: url('/font/you.TTF')format('truetype')
    }

}

* {
    box-sizing: border-box;
}

body {
    font-family: 'you';
    padding: 0;
    margin: 0;
    font-weight: 300;
    font-size: 16px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 300;
}

ul,
ol {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

a {
    text-decoration: none;
    color: var(--color3);
}

a:hover {
    color: var(--color9);
}

input {
    outline: none;
}

#header {
    height: 2.25rem;
    position: relative;
}

.loading {
    width: 100px;
    height: 50px;
    border-radius: 1px;
    vertical-align: middle;
    margin: 50px auto;
}

#more_btn {
    display: none;
    text-align: center;
    height: 50px;
    margin: 50px auto;
    cursor: pointer;
}

.help {
    width: 30px;
    height: 30px;
    border: 1px #333 solid;
    border-radius: 50%;
    -webkit-animation: rotation 1s ease-in-out infinite;
    -moz-animation: rotation 1s ease-in-out infinite;
    animation: rotation 1s ease-in-out infinite;
    margin: 30px auto;
}

.help::after {
    width: 5px;
    height: 5px;
    background-color: #333;
    border-radius: 100%;
    position: absolute;
    content: "";
    left: 8px;
}

@-webkit-keyframes rotation {
    0% {
        -webkit-transform: rotate(0deg);
    }

    100% {
        -webkit-transform: rotate(360deg);
    }
}

@-moz-keyframes rotation {
    0% {
        -moz-transform: rotate(0deg);
    }

    100% {
        -moz-transform: rotate(360deg);
    }
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.header_all {
    width: 100%;
    min-height: 2.25rem;
    padding: 0 1.5rem;
    z-index: 100;
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background-color: #fff;
    border-bottom: 1px solid var(--colore);
}

.header_all .logo {
    top: 50%;
    border-radius: 50%;
}

.logo img {
    display: block;
    width: 100%;
}

.menu_list {
    display: flex;
    flex-direction: row;
}

.menu_list li {
    position: relative;
}

.menu_list li a {
    display: block;
    padding: 0 .625rem;
}

.search {
    position: relative;
    min-width: 7.5rem;
    height: 1rem;
    background-color: var(--f5f5);
    border-radius: 1rem;
    border: 1px solid transparent;
}

.search.on {
    border-color: red;
}

.search input {
    display: block;
    width: 100%;
    height: 100%;
    background: transparent;
    border: 0;
    padding: 0 .57rem 0 .5rem;
}

.search>button {
    background: url(../img/search.png) no-repeat center / 50%;
    font-size: 0;
    position: absolute;
    width: .9rem;
    height: .9rem;
    border: 0;
    right: .25rem;
    top: 0;
    height: 100%;
    cursor: pointer;
}

.header_all .menu_list>li>a:before {
    content: '';
    display: block;
    width: 5px;
    height: 5px;
    background: #e59d60;
    border-radius: 50%;
    position: absolute;
    top: -.3rem;
    left: 0;
    opacity: 0;
    transition: left 0.5s;
}

.header_all .menu_list>li:hover>a:before {
    left: 50%;
    margin-left: -2.5px;
    opacity: 1;
}

.header_all .menu_list>li:hover>a {
    color: #e59d60;
    position: relative;
}

.main_banner {
    position: relative;
    overflow: hidden;
}

.slick-slide {
    display: flex;
    flex-direction: row;
    background: #f3f7f8;
}

.slick-slide img {
    width: 100%;
    display: block;
}

.slick-slide .left,
.slick-slide .right {
    width: 50%;
}

.slick-slide .right {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.main_wrap {
    min-height: 500px;
}

.main_wrap .swiper-pagination.main_paging {
    width: auto;
    bottom: 1.5rem;
    left: 1.5rem;
    color: var(--color0);
    font-weight: 500;
}

.swiper-pagination.main_paging .swiper-pagination-current {
    font-size: .6rem;
}

.main_banner .right .top {
    position: relative;
    overflow: hidden;
    height: 50%;
}

.main_banner .right .top .txt {
    position: absolute;
    top: 50%;
    left: 11.6%;
    text-align: left;
    margin-top: -95px;
}

.main_banner .btn_basic:after {
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: .8rem;
    height: 9px;
    background: url(../img/icon_btn1.png) no-repeat center / cover;
    margin-left: 10px;
    margin-top: -2px;
}

.main_wrap .slick-arrow {
    position: absolute;
    width: 1.5rem;
    height: 1.5rem;
    top: 50%;
    z-index: 10;
    right: auto;
    left: 50%;
    margin-left: -2.25rem;
    cursor: pointer;
    border: 1px solid #fff;
    border-radius: 50%;
}

.main_wrap .swiper-button-next.main_next {
    background: url(../img/icon_next.png)no-repeat 50% 50%;
    margin-top: 39px;
}

.main_wrap .swiper-button-prev.main_prev {
    background: url(../img/icon_prev.png)no-repeat 50% 50%;
    margin-top: -35px;
}

.main_wrap .swiper-button-next.main_next:after,
.main_wrap .swiper-button-prev.main_prev:after {
    content: "";
}

.container {
    width: 100%;
    margin: 0 auto;
    padding: 0 1.5rem;
    max-width: 1800px;
}

.goods_list_tit {
    padding: 60px 0 10px 0;
    border-bottom: 1px solid #ececec;
    line-height: 1;
    position: relative;
}

.lu_list .goods_list_tit {
    padding: 3.25rem 0 1.125rem;
    border: none;
}

.goods_list {
    padding-bottom: 0.75rem;
}

.goods_list_cont {
    position: relative;
    width: 100%;
}

.lu_list .goods_list {
    padding: 0;
}

.lu_list .goods_list_tit h2 {
    text-align: center;
    font-size: var(--font45);
    color: #333;
    line-height: 1;
    margin: 0;
}

.lu_list .goods_list_cont {
    position: static;
}

.lu_list .item_hl_tab_type .goods_tab_tit {
    position: absolute;
    top: 3.5rem;
    left: 0;
}

.lu_list .item_hl_tab_type .goods_tab_tit ul {
    width: 100%;
}

.item_hl_tab_type .goods_tab_tit li {
    display: inline-block;
    font-size: var(--font16);
    text-align: center;
}

.lu_list .goods_list_cont .goods_tab_tit>ul {
    display: flex;
    flex-direction: row;
}

.lu_list .goods_list_cont ul li {
    margin: .75rem .75rem 0 0;
    width: calc(33.3333% - .75rem) ! important;
    overflow: hidden;
}

.lu_list .item_hl_tab_type .goods_tab_tit ul li a {
    border: none;
    position: relative;
    font-size: var(--font18);
    color: #333;
    font-weight: normal;
    padding: 0 12.5px;
    line-height: 1.5;
}

.lu_list .item_hl_tab_type .goods_tab_tit ul li {
    margin: 0;
    width: auto ! important;
    overflow: visible;
    background: transparent;
}

.lu_list .item_hl_tab_type .goods_tab_tit ul li a:before {
    content: '';
    display: block;
    width: 5px;
    height: 5px;
    background: #333;
    border-radius: 50%;
    position: absolute;
    top: -.4rem;
    left: -.25rem;
    opacity: 0;
    transition: all 0.3s;
}

.lu_list .item_hl_tab_type .goods_tab_tit ul li.on a:before,
.lu_list .item_hl_tab_type .goods_tab_tit ul li:hover a:before {
    left: 50%;
    margin-left: -2.5px;
    opacity: 1;
}

.lu_list .item_hl_tab_type .goods_tab_tit ul li:first-child.on a:before,
.lu_list .item_hl_tab_type .goods_tab_tit ul li:first-child:hover a:before {
    margin-left: -7px;
}

.item_photo_box {
    display: inline-block !important;
    overflow: hidden;
    position: relative;
    text-align: center;
    border: 1px solid #ebebeb;
    vertical-align: middle;
}

.lu_list .goods_list_cont .item_cont .item_photo_box {
    border: none;
}

.item_hl_tab_type .goods_tab_cont .goods_tab_box {
    display: none;
}

.item_hl_tab_type .goods_tab_cont .goods_tab_box.on {
    display: block;
}

.goods_list_cont ul li {
    display: inline-block;
    position: relative;
    margin: 1rem 0 0 0;
    text-align: center;
    vertical-align: top;
}

.item_cont {
    padding: 0 .25rem;
    text-align: left;
    color: #1c1c1c;
}

.lu_list .goods_list_cont .item_cont {
    padding: 0;
    background: #f5f5f5;
}

.item_photo_box a {
    display: block;
    height: 100%;
}

.lu_list .goods_list_cont .item_cont .item_photo_box img {
    width: 100%;
    display: block;
}

.goods_tab_box ul {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

.lu_list .goods_list_cont .item_cont .item_info_box {
    padding: 0 .75rem .625rem;
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    text-align: left;
}

.lu_list .goods_list_cont .item_cont .item_info_box .item_info_cont {
    width: 100%;
    padding: 0 10px;
    transition: all .5s ease;
}

.lu_list .goods_list_cont .item_cont .item_info_box .item_info_cont p {
    opacity: 0;
    display: none;
}

.lu_list .goods_list_cont .item_cont:hover .item_info_cont {
    background: #fff;
    border-radius: 7px;
    /* text-align: center; */
    padding: 10px 15px;
}

.lu_list .goods_list_cont .item_cont .item_info_cont h3 {
    font-weight: 400;
    margin: 0;
}

.lu_list .goods_list_cont .item_cont:hover .item_info_cont p {
    opacity: 1;
    display: block;
}

.item_tit_box .item_name {
    display: block;
    padding: 5px 0 0 0;
    word-break: break-all;
    font-weight: 500;
}

.item_tit_box .item_name:hover {
    color: var(--color3);
}

.lu_list .goods_list_cont .item_cont .item_info_box .item_money_box .item_price {
    font-size: var(--font18);
    color: #333;
    font-weight: 700;
    padding: 5px 0;
    display: inline-block;
}

.lu_list .goods_list_cont .item_cont .item_info_box .item_tit_box .item_name {
    font-size: var(--font18);
    color: #333;
    padding: 0;
}

.content01 {
    margin-top: 160px;
    position: relative;
}

#banner_series .right .goods_list_cont ul {
    display: flex;
    flex-direction: row;
}

#banner_series .right h3 {
    font-size: .8rem;
}

#banner_series .right .goods_list_cont ul li {
    width: calc(50% - 15px) ! important;
    margin: 0 .75rem 0 0;
}

#banner_series .right {
    padding-left: .75rem;
}

#banner_series .right .goods_list_cont .item_cont {
    padding: 0;
}

#banner_series .right .txt {
    padding-left: .75rem;
}

#banner_series .right .top .txt {
    left: 0;
}

#banner_series .main_paging {
    left: auto;
    right: 1.5rem;
    bottom: auto;
    top: 3%;
}

#banner_series .slick-slide {
    background-color: #fff;
}

.mid_banner01 {
    margin-top: 180px;
    position: relative;
}

.mid_banner01 .txt {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    margin-top: -2rem;
    padding-left: 9.6%;
}

.mid_banner01 .txt h3 {
    font-size: var(--font34);
    font-weight: 300;
}

.btn_basic:after {
    content: '';
    display: inline-block;
    vertical-align: middle;
    width: 26px;
    height: 9px;
    background: url(../img/icon_btn1.png)no-repeat 50% 50%;
    margin-left: 10px;
    margin-top: -2px;
}

.best_pd.lu_list .goods_list_cont .goods_tab_cont ul li:nth-of-type(1) {
    width: calc(66.6666% - .75rem) ! important;
}

.best_pd.lu_list .goods_list_cont .goods_tab_cont ul li:nth-of-type(1) .item_photo_box {
    width: 48.6%;
    margin: 0 auto;
    display: block !important;
}

.mid_banner01 img {
    width: 100%;
    display: block;
}

.best_pd.lu_list .prd_num {
    position: absolute;
    top: .75rem;
    left: .75rem;
    font-size: .7rem;
    color: #a8a8a8;
    border-bottom: 1px solid #a8a8a8;
    display: block;
    line-height: 1;
    z-index: 1;
}

#footer {
    border-top: 1px solid #e9e9e9;
    margin-top: 2.5rem;
}

#footer .footer_all {
    width: 100%;
    display: flex;
    flex-direction: row;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: 1800px;
    margin: 0 auto;
}

.inline {
    border-right: 1px solid #e9e9e9;
}

.cont {
    width: 33.3333%;
    line-height: 2;
}

.code ul {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}

.code ul li {
    position: relative;
}

.code ul li img {
    display: block;
}

.links a {
    padding: 0 10px;
}

.slider_img_t {
    width: 1.3rem;
}

.slider_img_t img {
    width: 100%;
    cursor: pointer;
}

.slider_img_t:hover+.slider_img_b {
    display: block;
}

.slider_img_b {
    position: absolute;
    width: 4rem;
    height: 4rem;
    bottom: 100%;
    left: 50%;
    margin-left: -2rem;
    display: none;
}

.slider_img_b img {
    width: 100%;
    border-radius: .15rem;
}

.scroll_btn {
    position: fixed;
    bottom: .75rem;
    right: 1.5rem;
    z-index: 21;
    transition: all 0.3s;
    width: 1.5rem;
    height: 1.5rem;
    cursor: pointer;
    display: none;
}

.scroll_btn img {
    display: block;
    max-width: 100%;
}

.addition_zone {
    padding: 1.875rem 0;
}

.addition_zone img {
    display: block;
    width: 100%;
}

.list_item_category {
    width: 100%;
    padding-bottom: 1rem;
}

.list_item_category ul {
    display: flex;
    flex-direction: row;
    justify-content: center;
    flex-wrap: wrap;
}

.list_item_category ul li a {
    padding: 0 .25rem;
    color: #333;
    font-size: var(--font18);
    position: relative;
}

.list_item_category ul li.on a,
.list_item_category ul li:hover a {
    color: #e59d60;
}

.list_item_category ul li a:after {
    content: '';
    display: block;
    width: 5px;
    height: 5px;
    background: #e59d60;
    border-radius: 50%;
    position: absolute;
    top: -10px;
    left: 0;
    margin-left: -2.5px;
    opacity: 0;
    transition: all 0.2s;
}

.list_item_category ul li.on a:after,
.list_item_category ul li:hover a:after {
    left: 50%;
    opacity: 1;
}

.pagination {
    margin: 1rem 0 0;
    text-align: center;
}

.pagination li {
    display: inline-block;
    min-width: 26px;
    vertical-align: middle;
}

.pagination ul li a,
.pagination ul li span {
    font-size: var(--font18);
    color: #999;
    line-height: 1.5;
}

.pagination ul li.on a,
.pagination ul li.on span {
    font-weight: 500;
    color: #333;
    background: transparent;
}

.list_item_category.college_category {
    padding-top: 1rem;
}

.college_list {
    min-height: 500px;
}

.college_list ul {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

.college_list ul li {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0.75rem 0.75rem 0 0;
    width: calc(33.3333% - 0.75rem);
    overflow: hidden;
    background-color: #f5f5f5;
    min-height: 13.5rem;
    cursor: pointer;
    transition: all .25s;
}

.college_list ul li:hover {
    background-color: #a8a8a8;
}

.college_video {
    position: fixed;
    display: none;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, .5);
    z-index: 101;
}

.college_video iframe {
    position: absolute;
    display: block;
    width: 80%;
    height: 80%;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
}

.college_img {
    width: 5rem;
    height: 5rem;
}

.college_img img {
    display: block;
    width: 100%;
}

.college_text {
    font-size: var(--font18);
    color: var(--color0);
    margin-top: 1.25rem;
}

#shut_down {
    position: absolute;
    width: 1.25rem;
    height: 1.25rem;
    background-color: #fff;
    border-radius: 50%;
    right: .5rem;
    top: .5rem;
    z-index: 1;
    cursor: pointer;
    text-align: center;
    line-height: 1.25rem;
    font-size: var(--font18);
}

#shut_down:hover {
    transition: all .25s;
    opacity: .8;
}

.error {
    height: 100vh;
    background: url(../img/404.png) no-repeat center 80%;
}

.error-txt {
    text-align: center;
    padding-top: 1.5rem;
}

.error-txt p {
    font-size: var(--font34);
}

.error-txt a {
    display: inline-block;
    padding: 7px 15px;
    border: 1px solid #407fff;
    color: #407fff;
    background-color: #fff;
    border-radius: 5px;
    font-size: var(--font18);
}

.search-words {
    text-align: center;
    margin: 2rem 0 1rem 0;
    font-size: var(--font34);
}

.error.search {
    height: 60vh;
    background: url(../img/search_bj.jpg) no-repeat center 50%;
}

.error.search .error-txt {
    padding-top: 0;
}

.item_photo_view_box,
#detail,
.item_info_box {
    max-width: 100%;
    margin: 0 auto;
}

.sub_content {
    padding: 0 1.5rem;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.item_photo_big img {
    max-width: 100%;
    max-height: 100%;
    display: block;
    margin: 0 auto;
}

.ja {
    display: none;
    text-align: center;
    font-size: 14px;
    color: #666;
    margin-top: 50px;
}

.item_photo_big {
    display: block;
    width: 100%;
    height: 100%;
    border: none;
}

.item_photo_big li {
    display: none;
}

.item_photo_big li.on {
    display: block;
}

.item_photo_slide {
    text-align: center;
}

.item_photo_slide li {
    display: inline-block;
    width: 3.15rem;
    padding: 0 5px;
    cursor: pointer;
}

.item_photo_slide li img {
    display: block;
    width: 100%;
}

.item_photo_slide {
    margin: 10px 0 0 -5px;
}

.content_box {
    padding-top: 1.5rem;
}

.detail_explain_box {
    line-height: 1.8;
}

.detail_explain_box img {
    max-width: 100%;
}

.item_detail_tit {
    /* min-height: 8rem;
    max-height: 10rem;
    overflow: auto;
    margin-bottom: 1rem; */
    margin-top: 2.5rem;
}

.btn_choice_box {
    font-size: 0;
}

.btn_choice_box a {
    display: inline-block;
    width: 46%;
    text-align: center;
    font-size: .5rem;
    padding: 10px 0;
    border: 1px solid #000000;
    color: #000;
    margin-left: 4%;
}

.btn_choice_box a.btn_choice_l {
    margin-left: 0;
}

.btn_choice_box a.btn_choice_r {
    color: #fff;
    background-color: #000;
}

.btn_choice_box img {
    display: inline-block;
    vertical-align: middle;
    margin-right: .5rem;
}

.detail_cont {
    margin-top: 1.375rem;
}

.mid_banner01 img.advertising_sm {
    display: none;
}

.center {
    text-align: center;
}

.section {
    position: relative;
    display: block;
    width: 100%;
    min-height: 300px;
    padding: 210px 0;
}

.section:first-of-type {
    padding-top: 140px;
}

.p-intro {
    box-shadow: 0px 19px 34px -42px #ccc;
}

.features {
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-around;
}

.features-l li {
    line-height: 2;
    font-size: var(--font18);
}

.features-l {
    width: 40%;
}

.features-r {
    width: 50%;
    border: 1px solid #ccc;
}

.features-r img {
    max-width: 100%;
}

.features-r.features-n {
    border: 0;
    text-align: center;
}