* {
    margin: 0;
    padding: 0;
}

td,
th,
caption {
    font-size: 14px;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: normal;
    font-size: 100%;
}

address,
caption,
cite,
code,
dfn,
em,
th,
var {
    font-style: normal;
    font-weight: normal;
}

a {
    color: #555;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    border: none;
}

ol,
ul,
li {
    list-style: none;
}

input,
textarea,
select,
button {
    font: 14px Verdana, Helvetica, Arial, sans-serif;
}

input {
    outline: none;
}

table {
    border-collapse: collapse;
}

html {
    overflow-y: scroll;
}

.clearfix:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
}

.clearfix {
    *zoom: 1;
}

a:hover {
    text-decoration: none;
    color: #b20101;
}

.mt_10 {
    margin-top: 10px;
}

li {
    list-style: none;
}

.d_flex {
    display: flex;
}

.d_flex_c {
    display: flex;
    align-items: center;
    justify-content: center;
}

.j_b {
    justify-content: space-between;
}

.j_a {
    justify-content: space-around;
}

.j_c {
    justify-content: center;
}

.a_c {
    align-items: center;
}

.flex_warp {
    flex-wrap: wrap
}

.flex {
    flex: 1;
    width: 100%;
}

.p10 {
    padding: 10px;
}

.p15 {
    padding: 15px;
}

.p20 {
    padding: 20px;
}

.p25 {
    padding: 25px;
}

.pl10 {
    padding-left: 10px;
}

.pl15 {
    padding-left: 15px;
}

.pl20 {
    padding-left: 20px;
}

.pl25 {
    padding-left: 25px;
}

.pr10 {
    padding-right: 10px;
}

.pr15 {
    padding-right: 15px;
}

.pr20 {
    padding-right: 20px;
}

.pr25 {
    padding-right: 25px;
}

.pt10 {
    padding-top: 10px;
}

.pt15 {
    padding-top: 15px;
}

.pt20 {
    padding-top: 20px;
}

.pt25 {
    padding-top: 25px;
}

.pb10 {
    padding-bottom: 10px;
}

.pb15 {
    padding-bottom: 15px;
}

.pb20 {
    padding-bottom: 20px;
}

.pb25 {
    padding-bottom: 25px;
}

.m10 {
    margin: 10px;
}

.m15 {
    margin: 15px;
}

.m20 {
    margin: 20px;
}

.m25 {
    margin: 25px;
}

.ml10 {
    margin-left: 10px;
}

.ml15 {
    margin-left: 15px;
}

.ml20 {
    margin-left: 20px;
}

.ml25 {
    margin-left: 25px;
}

.mr10 {
    margin-right: 10px;
}

.mr15 {
    margin-right: 15px;
}

.mr20 {
    margin-right: 20px;
}

.mr25 {
    margin-right: 25px;
}

.mt10 {
    margin-top: 10px;
}

.mt15 {
    margin-top: 15px;
}

.mt20 {
    margin-top: 20px;
}

.mt25 {
    margin-top: 25px;
}

.mb10 {
    margin-bottom: 10px;
}

.mb15 {
    margin-bottom: 15px;
}

.mb20 {
    margin-bottom: 20px;
}

.mb25 {
    margin-bottom: 25px;
}

.co_e54d42 {
    color: #e54d42;
}

.co_f37b1d {
    color: #f37b1d;
}

.co_fbbd08 {
    color: #fbbd08;
}

.co_8dc63f {
    color: #8dc63f;
}

.co_39b54a {
    color: #39b54a;
}

.co_0081ff {
    color: #0081ff;
}

.co_6739b6 {
    color: #6739b6;
}

.co_9c26b0 {
    color: #9c26b0;
}

.co_e03997 {
    color: #e03997;
}

.co_a5673f {
    color: #a5673f;
}

.co_8799a3 {
    color: #8799a3;
}

.co_ffffff {
    color: #ffffff;
}

.co_828282 {
    color: #828282;
}

.co_333333 {
    color: #333333!important;
}

.co_105cd4 {
    color: #105cd4!important;
}

.bg_fff {
    background-color: #fff;
}

.bg_f9 {
    background-color: #F9F9F9;
}

html {
    background-color: #f8f8f8;
    min-height: 100vh;
}

body {
    font-size: 14px;
    margin: 0 auto;
}

header h1,header h2,header .site-slogan {
    margin-left: 10px;
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    cursor: pointer;
}
header h1 img,header h2 img,header .site-slogan img{
    position: relative;
    top: 2px;
    width: 20px;
    height: 20px;
    margin-right: 4px;
}
.city{
    color: #b20101;
}
header {
    position: fixed;
    top: 0;
    left: 50%;
    z-index: 99;
    transform: translateX(-50%);
    width: 100%;
    height: 100px;
    box-sizing: border-box;
    background-color: rgba(0, 0, 0, 0.8);
}

header .header {
    width: 1200px;
    margin: 0 auto;
}

header .logo {
    width: 80px;
    height: 80px;
    margin: 10px 0;
}

header .nav-ul {
    justify-content: flex-end;
    height: 100px;
    align-items: center;
}

header ul .nav-li {
    margin: 0 20px;
    text-align: center;
    position: relative;
    height: 100%;
    display: flex;
    align-items: center;
}

header ul li a {
    font-size: 18px;
    font-weight: bold;
    color: #fff;
}
.city-box{
    display: none;
    position: absolute;
    top: 100px;
    left: 50%;
    margin-left: -520px;
    width: 100px;
    background-color: rgba(0, 0, 0, 0.8);
}
.city-box li{
    text-align: center;
    line-height: 2;
    cursor: pointer;
}
.banner {
    position: relative;
}

.banner .txt-box {
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(0, 0, 0, 0.5);
    width: 800px;
    padding: 30px 40px;
    box-sizing: border-box;
    z-index: 9;
    border-radius: 10px;
    min-height: 300px;
}

.banner .txt-box h1,.banner .txt-box h2 {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
    padding-bottom: 10px;
}

.banner .txt-box p {
    font-size: 18px;
    font-weight: bold;
    color: #eee;
}

.banner .txt-box h3 {
    font-size: 44px;
    font-weight: bold;
    color: #fff;
    padding: 30px;
    text-align: center;
    background-image: -webkit-linear-gradient(bottom, #e7b81c, #faecc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.banner .txt-box h3 span {
    width: 100px;
    display: inline-block;
}

.banner .txt-box .tip {
    font-size: 28px;
    text-align: center;
    background-image: -webkit-linear-gradient(bottom, #e7b81c, #faecc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sub-li {
    position: absolute;
    top: 100px;
    left: -50px;
    width: 150px;
    background-color: rgba(0, 0, 0, 0.8);
    display: none;
    z-index: 99;
}

.sub-li li {
    padding: 10px 5px;
}

.nav {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    padding: 30px 0;
}

.nav li {
    text-align: center;
}

.nav li img {
    width: 80px;
    height: 80px;
}

.nav li h4 {
    font-size: 20px;
    font-weight: bold;
    padding-bottom: 10px;
    color: #333;
}

.nav li p {
    font-size: 14px;
    color: #666;
}
.search{
    width: 1200px;
    margin: 30px auto;
    display: flex;
    justify-content: center;
}
.search .form{
    width: 100%;
    height: 60px;
}
.search .form .int{
    width: 70%;
    height: 60px;
    border: 1px solid #eee;
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
    padding: 0 20px;
    box-sizing: border-box;
    font-size: 16px;
}
.search .form .btn{
    width: 30%;
    background-color: #17A5B3;
    color: #fff;
    border: 1px solid #17A5B3;
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
}
.container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.container .content {
    width: 880px;
}
.container .sidebar{
    width: 300px;
}
.container .content .product-box {
    width: 100%;
    margin: 30px 0;
    position: relative;
    box-shadow: 0 0 10px #eee;
    background-color: #fff;
    padding: 30px 30px 10px;
    box-sizing: border-box;
}

.container .content .product-box h2 {
    font-size: 24px;
    font-weight: bold;
    color: #333;
    margin-bottom: 10px;
}

.container .content .product-box .more {
    position: absolute;
    right: 30px;
    top: 35px;
    font-size: 16px;
    color: rgb(240, 39, 39);
}

.product-list {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.product-list .product-item {
    width: 190px;
    margin-bottom: 20px;
}

.product-list .product-item .product-link {
    display: inline-block;
}

.product-list .product-item .product-link .cd-logo {
    width: 100%;
    height: 140px;
    border-radius: 5px;
}

.product-list .product-item .product-link .tit {
    font-size: 18px;
    font-weight: bold;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 190px;
}
.product-list .product-item .product-link .desc{
    font-size: 14px;
    color: #888;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    width: 190px;
    margin: 10px 0;
}
.product-link .comment{
    font-size: 14px;
    color: #999;
    width: 190px;
    display: -webkit-box;
    word-break: break-all;
    text-overflow:ellipsis;
    overflow: hidden;
    white-space: pre-line;
    -webkit-box-orient: vertical;
    -webkit-line-clamp:2;
}
.product-link .price{
    font-size: 18px;
    color: #f00;
    font-weight: bold;
    margin-top: 10px;
}

.container .sidebar .wechat{
    width: 100%;
    background-color: #17A5B3;
    margin-top: 30px;
    padding: 30px 20px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.container .sidebar .wechat h3{
    font-size: 20px;
    font-weight: bold;
    color: #ffffff;
    text-align: center;
}
.container .sidebar .wechat .txt{
    font-size: 14px;
    font-weight: bold;
    margin-top: 20px;
    text-align: center;
    color: #ffffff;
}
.container .sidebar .wechat .img-box{
    width: 100%;
    border: 1px solid #eee;
    padding: 4px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    margin-top: 5px;
}
.container .sidebar .wechat .img-box img{
    width: 100%;
}
.container .sidebar .wechat .desc{
    text-align: center;
    padding-top: 10px;
    color: #ffffff;
    font-size: 18px;
}
.quick-service{
    position: relative;
    width: 100%;
    margin-top: 20px;
    padding:30px 10px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.quick-service.bg1{
    background:url("../img/bg_news.jpg") no-repeat;
    background-size: 100% 100%;
}
.quick-service.bg2{
    background:url("../img/bg_dt.png") no-repeat;
    background-size: 100% 100%;
}
.quick-service h3{
    font-size: 20px;
    font-weight: bold;
    color: #ffffff;
    text-align: center;
    margin-bottom: 80px;
}
.service-tit{
    margin-top: 15px;
}
.quick-service .more{
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    top: 80px;
    font-size: 14px;
    color: #999;
}
.quick-service .more.ser{
    top: 90px;
    color: #f00;
}
.ser-list{
    margin: 10px 0;
    background-color: rgba(0,0,0,0.4);
    padding: 10px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    border-radius: 5px;
}
.ser-list img{
    width: 100px;
    height: 75px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
    margin-right: 10px;
}
.ser-list .info{
    flex: 1;
    width: 150px;
    color: #fff;
    height: 75px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.ser-list .info .tit{
    font-size: 18px;
    font-weight: bold;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}
.ser-list .info .desc{
    font-size: 14px;
    color: #999999;
}
.ser-list .info .time{
    font-size: 12px;
    color: #999999;
}
.bg2 .ser-list .desc{
    color: #eeeeee;
}
.bg2 .ser-list .time{
    color: #ffc124;
}
.step{
    text-align: center;
    margin-top: 30px;
}
.step img{
    width: 40px;
    height: 40px;
}
.step h4{
    font-size: 18px;
    color: #ffe976;
    font-weight: bold;
    margin: 10px 0;
}
.step p{
    font-size: 12px;
    color: #eeeeee;
    font-weight: bold;
}
.service-box{
    margin: 20px 0;
    background-color: #eeeeee;
    padding: 30px 10px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
}
.service-box h3{
    color: #333;
    font-size: 24px;
    font-weight: bold;
}
.service-box .list{
    margin-top: 20px;
}
.service-box .list span{
    font-size: 18px;
    font-weight: bold;
    color: #66cc33;
    display: block;
    margin-bottom: 10px;
}
.service-box .list a{
    padding-right:12px;
    color: #555;
    padding-bottom: 5px;
    display: inline-block;
}
.service-box .list a:hover{
    color: #f00;
    font-weight: bold;
}
.cooperation{
    width: 100%;
    background-color: #eeeeee;
}
.coop-con{
    width: 1200px;
    margin: 0 auto;
    padding: 30px 0;
}
.coop-con .tabs{
    font-size: 16px;
    padding: 10px 0 30px;
}
.coop-con .tabs span{
    margin-right: 20px;
    cursor: pointer;
}
.coop-con .tabs .active{
    color: #ffaa04;
    font-weight: bold;
    border-bottom: 2px solid #ffaa04;
}
.coop-con .title{
    font-size: 24px;
    color: #333333;
    font-weight: bold;
    margin-bottom: 20px;
}
.tab-con ul{
    justify-content: space-between;
    flex-wrap: wrap;
}
.tab-con li{
    width: 190px;
    height: 150px;
    background-color: #fff;
    text-align: center;
    margin-bottom: 12px;
    border-radius: 5px;
}
.tab-con li img{
    margin-top: 5px;
    width: 100px;
    height: 100px;
}
.tab-con li p{
    font-size: 20px;
    color: #333333;
}
footer{
    background-color: #333;
    padding: 30px 0;
}
footer .footer{
    width: 1200px;
    margin: 0 auto;
    color: #ffffff;
}
footer .footer img{
    margin-right: 5px;
    width: 15px;
    height: 15px;
}
footer .footer .desc{
    width: 400px;
    color: #ffffff;
    line-height: 2;
}
footer .footer a{
    color: #ffffff;
}
footer .footer .wechat-box img{
    width: 150px;
    height: 150px;
}
footer .footer .wechat-box .tit{
    text-align: center;
    color: #ffffff;
    margin-bottom: 10px;
}


/*list*/
.plac-box{
    height: 100px;
    width: 100%;
}
.crumbs{
    width: 1200px;
    margin: 10px auto 0 auto;
}
.crumbs a{
    font-size: 15px;
    color: #17A5B3;
}
.crumbs h1{
    color: #333;
    font-size: 15px;
    display: inline-block;
}
.crumbs a img{
    margin-right: 4px;
    width: 15px;
    height: 15px;
}
.list-item{
    width: 100%;
    padding: 30px 0;
    border-bottom: 1px solid #eaeaea;
}
.list-item .cd-logo{
    width: 300px;
    height: 200px;
    margin-right: 20px;
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    border-radius: 10px;
}
.list-item .item-info{
    width: 500px;
    height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}
.list-item .item-info .tit{
    font-size: 22px;
    color: #333;
    font-weight: bold;
}
.list-item .item-info  .desc{
    color: #999;
}
.list-item .item-info p{
    padding: 5px 0;
}
.list-item .item-info p .s-tit{
    color: #999;
    font-weight: bold;
    font-size: 14px;

}
.list-item .item-info .comment{
    display: -webkit-box;
    word-break: break-all;
    text-overflow:ellipsis;
    overflow: hidden;
    white-space: pre-line;
    -webkit-box-orient: vertical;
    -webkit-line-clamp:3;
    padding: 0;
    color: #999;
}
.list-item .item-info .val{
    color: #f37b1d;
    margin-right: 80px;
}
.list-item .item-info .price{
    font-size: 20px;
    color: #f00;
    font-weight: bold;
}
.list-item .item-info .old-price{
    text-decoration: line-through;
    color: #999;
    font-size: 14px;
    margin-right: 100px;
}
.pages{
    margin: 20px auto 20px auto;
    display: flex;
    justify-content: center;
    align-items: center;
}
.pages li{
    padding: 4px 10px;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    border: 1px solid #eaeaea;
    margin: 0 5px;
}
.pages li.active{
    background-color: #17A5B3;
    border: 1px solid #17A5B3;
    color: #ffffff;
}
.pages li.active a{
    color: #ffffff;
    font-weight: bold;
}

/*detail*/
.detail{
    background-color: #fff;
    margin-top: 30px;
    padding: 30px 20px;
    box-sizing: border-box;
    -webkit-border-radius: 4px;
    -moz-border-radius: 4px;
    border-radius: 4px;
    box-shadow: 0 0 10px #eaeaea;
}
.detail .img-box{
    width: 520px;
    margin-right: 20px;
}
.detail .img-box .big-img{
    width: 520px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}
.detail .img-box .img1{
    width: 120px;
    -webkit-border-radius: 5px;
    -moz-border-radius: 5px;
    border-radius: 5px;
}
.detail-info{
    flex: 1;
    width: 350px;
}
.detail-info h2{
    font-size: 24px;
    color: #000;
    font-weight: bold;
    margin-bottom: 30px;
}
.detail-info p{
    padding: 10px 0;
}
.detail-info .d-name{
    color: #666;
    font-size: 16px;
}
.detail-info .d-val{
    font-size: 15px;
    color: #333;
    font-weight: bold;
}
.detail-item{
    margin: 30px 0;
}
.detail-item h3{
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    font-weight: bold;
}
.detail-item p{
    color: #333;
    line-height: 1.8;
    font-size: 16px;
}
.detail-item .item-img img{
    -webkit-border-radius: 8px;
    -moz-border-radius: 8px;
    border-radius: 8px;
    margin-bottom: 10px;
    width: 100%;
}
.detail-item .item-img img:first-child{
    width: 100%;
}
.detail-item .item-img img:nth-child(2){
    width: 49%;
}
.detail-item .item-img img:nth-child(3){
    width: 49%;
}
.detail-item .item-img img:nth-child(4){
    width: 100%;
}
.detail-item .item-img img:nth-child(4n+2){
    width: 49%;
}
.detail-item .item-img img:nth-child(4n+3){
    width: 49%;
}
.example{

}
.example .ex-item{
    width: 270px;
    margin-bottom: 10px;
}
.example .ex-item img{
    width: 100%;
    border-radius: 5px;
}
.example .ex-item h3{
    width: 270px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.example .ex-item p{
    color: #666;
    font-size: 14px;
}
.red{color: red;}

/* BT-OPT 20260717: smart search, AI finder and result jumping */
.smart-search{width:100%;margin:24px auto 10px;padding:0 16px;box-sizing:border-box;}
.smart-search__inner{width:1200px;margin:0 auto;display:flex;gap:24px;align-items:stretch;background:#fff;border:1px solid #e6f3f4;box-shadow:0 12px 30px rgba(17,54,60,.08);border-radius:8px;padding:26px;box-sizing:border-box;}
.smart-search__copy{width:330px;padding:4px 8px;}.smart-search__eyebrow{display:inline-block;color:#17A5B3;font-weight:bold;margin-bottom:10px;}.smart-search__copy h2{font-size:28px;line-height:1.25;font-weight:bold;color:#1f2d33;margin-bottom:12px;}.smart-search__copy p{color:#607078;line-height:1.8;font-size:15px;}.smart-search__panel{flex:1;min-width:0;}.smart-search__form{display:flex;height:58px;}.smart-search__input{flex:1;min-width:0;border:2px solid #17A5B3;border-right:0;border-radius:8px 0 0 8px;padding:0 18px;font-size:16px;color:#1f2d33;box-sizing:border-box;}.smart-search__btn{width:150px;border:2px solid #17A5B3;background:#17A5B3;color:#fff;border-radius:0 8px 8px 0;font-size:17px;font-weight:bold;cursor:pointer;}.smart-search__quick{margin:12px 0 16px;color:#77858b;}.smart-search__quick a{display:inline-block;margin-right:12px;color:#17A5B3;font-weight:bold;}.ai-finder{border:1px solid #e8edf0;background:#f8fbfb;border-radius:8px;padding:16px;}.ai-finder__head{display:flex;align-items:baseline;gap:12px;margin-bottom:10px;}.ai-finder__head strong{font-size:18px;color:#1f2d33;}.ai-finder__head span{color:#77858b;}.ai-finder__textarea{width:100%;min-height:78px;resize:vertical;border:1px solid #d7e4e7;border-radius:6px;padding:12px;box-sizing:border-box;line-height:1.6;color:#27363c;}.ai-finder__btn{margin-top:10px;padding:10px 18px;border:0;border-radius:6px;background:#f37b1d;color:#fff;font-size:15px;font-weight:bold;cursor:pointer;}.ai-finder__btn:disabled{opacity:.72;cursor:wait;}.ai-finder__result{margin-top:12px;}.ai-finder__notice,.ai-finder__source{color:#607078;background:#fff;border:1px solid #e8edf0;border-radius:6px;padding:10px 12px;line-height:1.6;}.ai-finder__source{margin-top:8px;color:#9a6a10;background:#fff8e8;}.ai-finder__answer{white-space:pre-wrap;line-height:1.75;color:#27363c;background:#fff;border:1px solid #e8edf0;border-radius:6px;padding:12px;}.ai-finder__list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:10px;}.ai-finder__list li{background:#fff;border:1px solid #edf1f2;border-radius:6px;overflow:hidden;}.ai-finder__list a{display:flex;gap:10px;padding:8px;}.ai-finder__list img{width:86px;height:64px;object-fit:cover;border-radius:4px;background:#edf1f2;}.ai-finder__list span{min-width:0;display:flex;flex-direction:column;gap:4px;}.ai-finder__list b{color:#1f2d33;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}.ai-finder__list em{color:#77858b;font-size:12px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;}.ai-finder__list strong{color:#f00;}#space-results{scroll-margin-top:120px;}
@media screen and (max-width:1220px){header .header,.nav,.container,.coop-con,footer .footer,.crumbs,.smart-search__inner{width:94%;}.container{gap:18px;}.container .content{flex:1;min-width:0;}}
@media screen and (max-width:900px){.smart-search__inner,.container{display:block;}.smart-search__copy{width:auto;margin-bottom:16px;}.container .content,.container .sidebar{width:100%;}.ai-finder__list{grid-template-columns:1fr;}.smart-search__btn{width:120px;}}



/* BT-OPT 20260717R2: stable PC homepage AI search layout */
.home-ai-priority{position:relative;z-index:3;background:#f5f8f9;padding:22px 0 8px;margin:0 auto 10px;border-bottom:1px solid #edf2f3;}
.home-ai-priority .smart-search{margin:0 auto;padding:0 16px;}
.home-ai-priority .smart-search__inner{display:grid;grid-template-columns:340px minmax(0,1fr);gap:24px;align-items:start;width:1200px;max-width:100%;background:#fff;border:1px solid #d9f0f2;box-shadow:0 14px 34px rgba(16,73,82,.12);border-radius:8px;padding:24px;}
.home-ai-priority .smart-search__copy{width:auto;padding:0;border-right:1px solid #edf2f3;padding-right:22px;}
.home-ai-priority .smart-search__eyebrow{display:inline-block;background:#e8fbfd;color:#128c98;border-radius:4px;padding:5px 9px;font-size:14px;line-height:1;font-weight:bold;margin-bottom:12px;}
.home-ai-priority .smart-search__copy h2{font-size:26px;line-height:1.3;margin:0 0 10px;color:#1f2d33;font-weight:bold;}
.home-ai-priority .smart-search__copy p{margin:0;color:#607078;font-size:15px;line-height:1.8;}
.home-ai-priority .smart-search__panel{min-width:0;}
.home-ai-priority .smart-search__form{display:flex;width:100%;height:52px;margin:0 0 12px;}
.home-ai-priority .smart-search__input{height:52px;line-height:52px;background:#fff;border:2px solid #17A5B3;border-right:0;border-radius:6px 0 0 6px;padding:0 16px;font-size:15px;box-sizing:border-box;}
.home-ai-priority .smart-search__btn{height:52px;width:138px;border:2px solid #17A5B3;border-radius:0 6px 6px 0;background:#17A5B3;color:#fff;font-size:16px;font-weight:bold;}
.home-ai-priority .ai-finder{background:#fbfefe;border:1px solid #e0ecef;border-radius:8px;padding:14px;}
.home-ai-priority .ai-finder__head{display:flex;gap:10px;align-items:center;margin-bottom:9px;}
.home-ai-priority .ai-finder__head strong{font-size:17px;color:#1f2d33;}
.home-ai-priority .ai-finder__head span{font-size:13px;color:#728087;}
.home-ai-priority .ai-finder__textarea{display:block;width:100%;min-height:68px;border:1px solid #d7e4e7;border-radius:6px;padding:10px 12px;font-size:14px;line-height:1.6;box-sizing:border-box;resize:vertical;}
.home-ai-priority .ai-finder__btn{height:38px;margin-top:10px;padding:0 18px;border:0;border-radius:6px;background:#f37b1d;color:#fff;font-weight:bold;cursor:pointer;}
.home-ai-priority .smart-search__quick{margin:10px 0 0;color:#718087;font-size:14px;}
.home-ai-priority .smart-search__quick a{display:inline-block;margin-right:12px;color:#128c98;font-weight:bold;}
@media screen and (max-width:1220px){.home-ai-priority .smart-search__inner{width:94%;}}
@media screen and (max-width:900px){.home-ai-priority{padding:12px 0 6px;}.home-ai-priority .smart-search__inner{display:block;width:94%;padding:18px;}.home-ai-priority .smart-search__copy{border-right:0;border-bottom:1px solid #edf2f3;padding:0 0 14px;margin-bottom:14px;}.home-ai-priority .smart-search__copy h2{font-size:22px;}.home-ai-priority .smart-search__btn{width:112px;}.home-ai-priority .ai-finder__head{display:block;}.home-ai-priority .ai-finder__head span{display:block;margin-top:4px;}}


/* BT-OPT 20260717R3: full responsive PC web layout */
html,body{max-width:100%;overflow-x:hidden;}
*,*:before,*:after{box-sizing:border-box;}
img{max-width:100%;}
header .header,.nav,.container,.coop-con,footer .footer,.crumbs,.search{width:min(1200px,calc(100% - 32px));max-width:1200px;}
header .header{display:flex;align-items:center;min-width:0;}
header .logo{flex:0 0 auto;}
header h1,header h2,header .site-slogan{flex:0 1 auto;min-width:0;white-space:nowrap;}
header .nav-ul{flex:1 1 auto;min-width:0;display:flex;justify-content:flex-end;gap:clamp(12px,2vw,34px);overflow:hidden;}
header ul .nav-li{margin:0;flex:0 0 auto;}
header ul li a{font-size:clamp(15px,1.35vw,18px);white-space:nowrap;}
.city-box{left:auto;right:0;margin-left:0;}
.banner{width:100%;overflow:hidden;}
.banner .swiper-slide img,.banner img{display:block;width:100%;height:clamp(360px,42vw,520px);object-fit:cover;}
.banner .txt-box{width:min(800px,calc(100% - 32px));min-height:auto;padding:clamp(18px,3vw,30px) clamp(18px,4vw,40px);}
.banner .txt-box h1,.banner .txt-box h2{font-size:clamp(18px,2.1vw,24px);line-height:1.45;}
.banner .txt-box p{font-size:clamp(14px,1.7vw,18px);line-height:1.6;}
.banner .txt-box h3{font-size:clamp(28px,4vw,44px);line-height:1.25;padding:clamp(16px,3vw,30px) 0;}
.banner .txt-box h3 span{width:clamp(28px,6vw,100px);}
.banner .txt-box .tip{font-size:clamp(20px,2.8vw,28px);}
.nav{gap:20px;}
.nav li{flex:1 1 0;min-width:0;}
.nav li p{line-height:1.6;}
.container{display:flex;gap:20px;align-items:flex-start;justify-content:space-between;}
.container .content{flex:1 1 auto;width:auto;min-width:0;}
.container .sidebar{flex:0 0 300px;width:300px;}
.container .content .product-box{padding:clamp(18px,2.5vw,30px);}
.product-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:20px;justify-content:normal;}
.product-list .product-item,.product-list .product-item .product-link,.product-list .product-item .product-link .tit,.product-list .product-item .product-link .desc,.product-link .comment{width:100%;min-width:0;}
.product-list .product-item{margin-bottom:0;}
.product-list .product-item .product-link{display:block;}
.product-list .product-item .product-link .cd-logo{height:auto;aspect-ratio:19/14;object-fit:cover;}
.ser-list .info{min-width:0;width:auto;}
.coop-con ul,.tab-con ul{gap:12px;}
.tab-con li{width:calc((100% - 60px)/6);min-width:150px;}
.smart-search,.home-ai-priority .smart-search{width:100%;}
.smart-search__inner,.home-ai-priority .smart-search__inner{width:min(1200px,calc(100% - 32px));max-width:1200px;}
.detail-info,.detail-item,.service-box,.quick-service{max-width:100%;}
.detail-info img,.detail-item img{height:auto;}
@media screen and (max-width:1100px){
  header{height:auto;min-height:82px;}
  header .header{min-height:82px;}
  header .logo{width:66px;height:66px;margin:8px 0;}
  header h1,header h2,header .site-slogan{font-size:17px;}
  header .nav-ul{gap:12px;}
  .container{display:block;}
  .container .content,.container .sidebar{width:100%;}
  .container .sidebar{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
  .container .sidebar .wechat,.quick-service,.service-box{margin-top:18px;}
  .home-ai-priority .smart-search__inner,.smart-search__inner{display:block;}
  .home-ai-priority .smart-search__copy,.smart-search__copy{width:auto;border-right:0;border-bottom:1px solid #edf2f3;padding:0 0 14px;margin-bottom:14px;}
}
@media screen and (max-width:760px){
  header{position:relative;left:auto;transform:none;background:rgba(0,0,0,.88);}
  header .header{width:calc(100% - 24px);display:block;padding:8px 0;}
  header .logo{width:58px;height:58px;margin:0 8px 8px 0;vertical-align:middle;}
  header h1,header h2,header .site-slogan{display:inline-block;margin-left:0;font-size:16px;max-width:calc(100% - 78px);vertical-align:middle;white-space:normal;line-height:1.35;}
  header .nav-ul{height:auto;justify-content:flex-start;gap:0;flex-wrap:wrap;overflow:visible;clear:both;}
  header ul .nav-li{height:auto;width:25%;padding:8px 0;text-align:left;}
  header ul li a{font-size:14px;}
  .city-box,.sub-li{top:auto;left:0;right:auto;margin-left:0;}
  .banner .swiper-slide img,.banner img{height:260px;}
  .banner .txt-box{top:54%;padding:16px;width:calc(100% - 24px);border-radius:8px;}
  .banner .txt-box h1,.banner .txt-box h2{font-size:16px;}
  .banner .txt-box p{font-size:13px;}
  .banner .txt-box h3{font-size:26px;padding:12px 0;}
  .banner .txt-box .tip{font-size:18px;}
  .nav{width:calc(100% - 24px);display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:18px 0;}
  .nav li img{width:58px;height:58px;}
  .nav li h4{font-size:17px;}
  .home-ai-priority{padding:12px 0 6px;}
  .home-ai-priority .smart-search,.smart-search{padding:0;}
  .home-ai-priority .smart-search__inner,.smart-search__inner{width:calc(100% - 24px);padding:16px;}
  .home-ai-priority .smart-search__copy h2,.smart-search__copy h2{font-size:21px;}
  .home-ai-priority .smart-search__form,.smart-search__form{height:auto;display:block;}
  .home-ai-priority .smart-search__input,.smart-search__input{width:100%;height:46px;line-height:46px;border:2px solid #17A5B3;border-radius:6px;font-size:14px;}
  .home-ai-priority .smart-search__btn,.smart-search__btn{width:100%;height:44px;margin-top:8px;border-radius:6px;font-size:15px;}
  .ai-finder__head{display:block;}
  .ai-finder__head span{display:block;margin-top:4px;}
  .container,.coop-con,footer .footer,.crumbs,.search{width:calc(100% - 24px);}
  .container .sidebar{display:block;}
  .product-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
  .container .content .product-box .more{position:static;display:inline-block;margin-bottom:12px;}
  .container .content .product-box h2{font-size:20px;}
  .product-list .product-item .product-link .tit{font-size:16px;}
  .tab-con li{width:calc(50% - 6px);min-width:0;height:auto;padding:10px 0;}
  .tab-con li img{width:72px;height:72px;}
  .tab-con li p{font-size:16px;}
}
@media screen and (max-width:420px){
  header ul .nav-li{width:33.333%;}
  .banner .swiper-slide img,.banner img{height:220px;}
  .banner .txt-box h3{font-size:22px;}
  .nav{grid-template-columns:1fr 1fr;gap:12px;}
  .product-list{grid-template-columns:1fr;}
  .ai-finder__list{grid-template-columns:1fr;}
}


/* BT-OPT 20260717R4: visible responsive city strip and header rebuild */
header{height:auto;min-height:100px;}
header .header{height:100px;}
.city-box{display:block;position:relative;top:auto;left:auto;right:auto;margin:0 auto;width:100%;background:rgba(0,0,0,.72);border-top:1px solid rgba(255,255,255,.08);}
.city-box ul{width:min(1200px,calc(100% - 32px));max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:8px;overflow-x:auto;padding:8px 0;scrollbar-width:thin;}
.city-box li{line-height:1;text-align:center;flex:0 0 auto;}
.city-box li a{display:block;padding:8px 12px;border-radius:4px;color:#fff;font-size:14px;font-weight:bold;white-space:nowrap;background:rgba(255,255,255,.06);}
.city-box li.active a,.city-box li a:hover{background:#17A5B3;color:#fff;text-decoration:none;}
.banner{margin-top:0;}
@media screen and (min-width:761px){
  body{padding-top:141px;}
  header{position:fixed;top:0;left:50%;transform:translateX(-50%);}
  .banner{margin-top:-141px;}
}
@media screen and (max-width:1100px){
  header .header{height:auto;min-height:82px;}
  .city-box ul{width:calc(100% - 24px);}
}
@media screen and (max-width:760px){
  body{padding-top:0;}
  header{position:relative;left:auto;transform:none;min-height:0;}
  header .header{height:auto;min-height:0;}
  .city-box{background:#10262b;border-top:1px solid rgba(255,255,255,.12);}
  .city-box ul{width:calc(100% - 24px);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;padding:10px 0;overflow:visible;}
  .city-box li{min-width:0;}
  .city-box li a{padding:9px 4px;font-size:14px;border:1px solid rgba(255,255,255,.08);}
  .banner{margin-top:0;}
}
@media screen and (max-width:420px){
  .city-box ul{grid-template-columns:repeat(3,minmax(0,1fr));}
}

/* BT-OPT 20260717R5: database-first AI result labels */
.ai-finder__answer strong{color:#1f2d33;font-weight:bold;}
.ai-finder__supplement{margin-top:10px;background:#f7fbff;border-color:#dbeaf7;}


/* BT-OPT 20260719: top magnifier site search */
.top-search{position:relative;flex:0 0 auto;margin-left:14px;z-index:12;}
.top-search__toggle,.top-search__submit{width:42px;height:42px;border:1px solid rgba(255,255,255,.36);border-radius:50%;background:rgba(255,255,255,.08);color:#fff;font-size:20px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;}
.top-search__toggle:hover,.top-search.is-open .top-search__toggle{background:#17A5B3;border-color:#17A5B3;}
.top-search__form{position:absolute;right:0;top:50px;width:0;height:46px;display:flex;overflow:hidden;opacity:0;pointer-events:none;border-radius:23px;background:#fff;box-shadow:0 12px 30px rgba(0,0,0,.24);transition:width .22s ease,opacity .18s ease;}
.top-search.is-open .top-search__form{width:360px;opacity:1;pointer-events:auto;}
.top-search__input{flex:1;min-width:0;height:46px;border:0;padding:0 16px 0 18px;font-size:15px;color:#1f2d33;outline:none;box-sizing:border-box;}
.top-search__submit{width:46px;height:46px;border:0;border-radius:0;background:#17A5B3;color:#fff;font-size:18px;}
.home-ai-priority .smart-search__form,.smart-search__quick{display:none;}
.home-ai-priority .smart-search__inner{grid-template-columns:300px minmax(0,1fr);}
@media screen and (max-width:1220px){.top-search.is-open .top-search__form{width:320px;}}
@media screen and (max-width:900px){.top-search{position:absolute;right:12px;top:18px;margin-left:0;}.top-search__toggle{width:40px;height:40px;}.top-search.is-open .top-search__form{width:min(330px,calc(100vw - 24px));}.top-search__form{top:48px;}.home-ai-priority .smart-search__inner{display:block;}}


/* BT-OPT 20260719R3: stable responsive header search and AI block */
header .header{position:relative;gap:18px;}
header .nav-ul{padding-right:0;}
.top-search{position:relative;display:flex;align-items:center;justify-content:flex-end;width:44px;height:44px;margin-left:8px;z-index:30;}
.top-search__toggle{position:relative;z-index:2;width:42px;height:42px;border:1px solid rgba(255,255,255,.42);border-radius:50%;background:rgba(0,0,0,.28);color:#fff;font-size:0;cursor:pointer;display:flex;align-items:center;justify-content:center;box-sizing:border-box;}
.top-search__toggle::before,.top-search__submit::before{content:"";width:15px;height:15px;border:2px solid currentColor;border-radius:50%;box-sizing:border-box;display:block;}
.top-search__toggle::after,.top-search__submit::after{content:"";position:absolute;width:8px;height:2px;background:currentColor;transform:translate(10px,10px) rotate(45deg);border-radius:2px;}
.top-search__toggle:hover,.top-search.is-open .top-search__toggle{background:#17A5B3;border-color:#17A5B3;}
.top-search__form{display:none !important;position:absolute;right:0;top:52px;width:min(360px,calc(100vw - 48px));height:44px;align-items:center;overflow:hidden;border-radius:22px;background:#fff;box-shadow:0 14px 34px rgba(0,0,0,.28);border:1px solid rgba(23,165,179,.28);box-sizing:border-box;}
.top-search.is-open .top-search__form{display:flex !important;}
.top-search__input{flex:1;min-width:0;height:42px;border:0;padding:0 14px 0 17px;font-size:14px;color:#1f2d33;background:#fff;outline:none;box-sizing:border-box;}
.top-search__submit{position:relative;width:46px;height:44px;border:0;background:#17A5B3;color:#fff;font-size:0;display:flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 46px;}
.home-ai-priority{background:#f6fbfc;padding:22px 0 8px;}
.home-ai-priority .smart-search__inner{display:grid;grid-template-columns:minmax(260px,330px) minmax(0,1fr);gap:24px;align-items:stretch;width:min(1200px,calc(100% - 48px));border-radius:8px;overflow:hidden;}
.home-ai-priority .smart-search__copy{display:flex;flex-direction:column;justify-content:center;min-width:0;}
.home-ai-priority .smart-search__panel{min-width:0;}
.home-ai-priority .ai-finder{height:100%;box-sizing:border-box;}
.home-ai-priority .smart-search__form,.smart-search__quick{display:none !important;}
@media screen and (max-width:1100px){header .header{gap:12px;}header .nav-ul{gap:14px;}header ul li a{font-size:15px;}.top-search__form{right:-8px;width:min(320px,calc(100vw - 28px));}.home-ai-priority .smart-search__inner{width:calc(100% - 32px);grid-template-columns:1fr;}.home-ai-priority .smart-search__copy{border-right:0;border-bottom:1px solid #edf2f3;padding:0 0 14px;margin-bottom:0;}}
@media screen and (max-width:760px){.top-search{position:absolute;right:12px;top:16px;width:40px;height:40px;}.top-search__toggle{width:40px;height:40px;}.top-search__form{top:48px;right:0;width:calc(100vw - 24px);}header .nav-ul{padding-right:0;}.home-ai-priority{padding:12px 0 6px;}.home-ai-priority .smart-search__inner{width:calc(100% - 24px);padding:16px;}}


/* BT-OPT 20260719R4: preserve header logo aspect ratio */
header .header > a:first-child{display:flex;align-items:center;justify-content:center;flex:0 0 auto;width:86px;height:86px;margin:7px 0;}
header .logo{display:block;width:64px !important;height:auto !important;max-width:64px;max-height:80px;object-fit:contain;margin:0 !important;}
@media screen and (max-width:760px){header .header > a:first-child{width:62px;height:62px;margin:0 8px 8px 0;display:inline-flex;vertical-align:middle;}header .logo{width:52px !important;max-width:52px;max-height:58px;}}