/*通用样式*/
*{margin:0;padding:0;word-wrap:break-word;box-sizing: border-box;}
html {scroll-behavior: smooth;}
body{font-size:17px;overflow-x: hidden;font-family:Arial,'hiragino sans gb','microsoft yahei ui','microsoft yahei',simsun,sans-serif;color:#444;}
body{ color:#4C4C4C;}
a{color:#4C4C4C;text-decoration:none;}
a:hover{color:#FF0000;}
a img{border:none;} 
div,ul,li,p,form{padding: 0px; margin: 0px;list-style-type: none;}
em{font-style: normal;font-weight: normal;}
table {padding: 0px; margin: 0px;list-style-type: none;}
dt,dl,dd {padding: 0px; margin: 0px;list-style-type: none;}
form{margin:0px;padding:0px;}
input[type="checkbox"], input[type="radio"] {-webkit-box-sizing: border-box;-moz-box-sizing: border-box;box-sizing: border-box;padding: 0;}
input:focus,textarea:focus,select:focus{ outline:none;}
input[type="text"],select{ height:30px; line-height:30px; color:#999; border:1px solid #ddd;}
tr {padding: 0px; margin: 0px;list-style-type: none;}
h2,h3,h4{padding:0px; font-size:14px; font-weight:normal;}
i,em{ font-style:normal;}
@font-face {font-family: 'yshst';src: url("../UploadFiles/yshst.woff2") format('woff2'),url('../UploadFiles/yshst.woff') format('woff');font-weight: normal;font-style: normal;}

/*头部通用*/




/*banner*/
.rslides { position: relative; overflow: hidden; width: 100%; padding: 0; margin: 0;}
.rslides li {  -webkit-backface-visibility: hidden; position: absolute; display: none; width: 100%; left: 0; top: 0; }
.rslides li:first-child { position: relative; display: block; float: left; }
.rslides img { display: block; height: auto; float: left; width: 100%; border: 0; }
.slide_container {  position: relative; float: left; width: 100%; overflow:hidden;}
.slide { position: relative; list-style: none; overflow: hidden; width: 100%; padding: 0; margin: 0; }
.slide li { position: absolute; width: 100%; left: 0; top: 0; }
.slide img { display: block; position: relative; z-index: 1; height: auto; width: 100%; border: 0; }
.slide .caption { display: block; position: absolute; z-index: 2; font-size: 20px; text-shadow: none; color: #fff; background: #000; background: rgba(0,0,0,0.8); left: 0; right: 0; bottom: 0; padding: 10px 20px; margin: 0; max-width: none; }
.slide_nav:active { opacity: 1.0; }
.slide_nav.next {left: auto;background-position: right top;right: 5%;}
.slide_container .tu{ width:100%; height:602px;}
.slide_nav{font-size: 0;width: 60px;height: 60px;opacity: 0.8;position: absolute;top: 50%;transform: translateY(-50%);z-index: 20; background: url("../UploadFiles/vbg01.png") no-repeat rgb(255,255,255);border-radius: 50%;box-shadow: 0px 2px 10px rgba(0,0,0,.2);transition: all 0.4s;}
.prev{left: 5%;background-position: -2px 0;}
.next{right: 5%;background-position: -58px 0;}
.prev:hover{background: url("../UploadFiles/vbg02.png") no-repeat rgb(220 10 5);}
.next:hover{background: url("../UploadFiles/vbg02.png") no-repeat rgb(220 10 5);background-position: -58px 0;}


/*一键拨号*/
.footbox{height: 10rem;background:rgba(10,95,205,0.70);bottom: 0;z-index: 99;left: 0; width: 100%;min-width: 375px; position: fixed; border-top:0;z-index: 1000;}
.flexbox{margin-top:2px;text-align: center; display: -webkit-box; display: -webkit-flex; display: -ms-flexbox; display: flex;}
.footbox ul li{-webkit-box-flex: 1; -webkit-flex: 1; -ms-flex: 1;flex: 1; text-align:center;}
.footbox ul li a{ display:block;color:#fff;font-size:2rem;line-height:3rem;font-weight: 600;}
.footbox ul li a img{ display:block; width:6rem; height:6rem; margin:0.5rem auto}
@media(min-width:1000px){.footbox{display:none;}}
.sjkx{display:block;}
@media(min-width:1000px){.sjkx{display: none;}}






.sycplbbox .swiper-slide a {position: relative; display: block; width: 100%; padding-bottom: 20px; background-color: #f7f8f9;box-shadow: 0 0 2px rgba(0,0,0,0.2);}
.sycplbbox .swiper-slide a:nth-child(2){margin-top: 30px;}
.sycplbbox .swiper-slide a::before {content: "";position: absolute;bottom: 0;left:0;width: 0;height: 2px; background-color:#3f3f7a; transition: all 0.4s;}
.sycplbbox .swiper-slide a .sytplb {position: relative; width: 100%; overflow: hidden;}
.sycplbbox .swiper-slide a .sytplb::after {content: ""; position: absolute; top: 15px; left: 15px; z-index: 20; width: 20px; height: 20px; background-image: url("../../UploadFiles/bj/cptb.png"); opacity: 0; transition: all 0.4s;}
.sycplbbox .swiper-slide a .sytplb::before {content: ""; position:absolute; top: -60px; left: -145px; z-index: 10; width: 120px; height: 120px; background-color: #3f3f7a; transform:rotate(45deg); transition: all 0.4s;}
.sycplbbox .swiper-slide a .sytplb img{display: block; width: 100%; transition: all 0.4s;}
.sycplbbox .swiper-slide a p:nth-child(2) {padding: 0 20px;box-sizing: border-box; font-size: 20px; line-height: 56px; color: #212121; text-align: center; overflow: hidden; text-overflow:ellipsis; white-space: nowrap;}
.sycplbbox .swiper-slide a p:nth-child(3) {display: flex; justify-content: space-between; width: 90px; margin: 0 auto; font-size: 18px; line-height: 17px; color: #3f3f7a; transition: all 0.4s;}
.sycplbbox .swiper-slide a p:nth-child(3) span{display: block; width: 17px;height: 17px;background-image: url("../../UploadFiles/bj/cptb2.png");}
.sycplbbox .swiper-slide a:hover::before{width: 100%;} 
.sycplbbox .swiper-slide a:hover .sytplb::after {opacity: 1;}
.sycplbbox .swiper-slide a:hover .sytplb::before {left: -60px;} 
.sycplbbox .swiper-slide a:hover .sytplb img{transform:scale(1.2);}
.sycplbbox .swiper-slide a:hover p:nth-child(3) {width: 100px;}

@media(max-width:1200px){.sycp{padding: 60px 2%;}}
@media(max-width:1060px){.sycpfl {width: 96%; margin-bottom: 20px;}.sycpfl li {width: calc((100% - 80px) / 5);margin-right: 20px;margin-bottom: 20px;}.sycpfl li:nth-child(5){margin-right: 0;}.sycpfl li a {font-size: 22px;}.sycplbbox .swiper-slide a p:nth-child(2) {font-size: 26px;}}




/*内页布局*/
.nybj {display: flex; justify-content: space-between; width: 100%; padding: 30px 5%; box-sizing: border-box;}

.nyl {width: 270px;}
.nylcpbt {width: 100%; padding: 28px 30px; box-sizing: border-box; background-color:#3f3f7a; background-image: url("../../UploadFiles/bj/nyclbj.png");}
.nylcpbt p:nth-child(1) {margin-bottom: 12px; font-size: 30px; line-height: 30px; font-weight: 600; color: #fff; letter-spacing: 16px;}
.nylcpbt p:nth-child(1) span {letter-spacing: 0;}
.nylcpbt p:nth-child(2) {font-size: 22px; line-height: 22px; color: #fff; letter-spacing: 2px;}
.nylcpbt p:nth-child(2) span {letter-spacing: 0;}

.nylcplb {width: 100%;}
.nylcplb li {position: relative; width: 100%; margin-top: 2px; background-color: #f7f8f9;}
.nylcplb li::before {content: ""; position: absolute; top: 0; left: 0; width: 0; height: 100%; background-color: #3f3f7a; transition: all 0.4s;}
.nylcplb li a {position: relative; z-index: 10; display: block; width: 100%; padding: 0 20px 0 50px; box-sizing: border-box; font-size: 18px; line-height: 56px; color: #333; transition: all 0.4s;}
.nylcplb li a::before {content: ""; position: absolute; top: 0; left: 30px; width: 7px; height: 56px; background-image: url("../../UploadFiles/bj/cljt1.png"); background-repeat: no-repeat; transition: all 0.4s;}
.nylcplb li:hover::before {width: 100%;}
.nylcplb li:hover a{padding: 0 30px 0 30px; color: #fff;}
.nylcplb li:hover a::before {left: 233px;  background-image: url("../../UploadFiles/bj/cljt2.png");}

.nyllx {width: 100%; padding:30px 40px; margin-top: 2px; box-sizing: border-box; background-image: url("../../UploadFiles/bj/cllx.jpg"); background-size: 100% 100%;}
.nyllx a {display: block; width: 100%; border: 2px solid #fff; box-sizing: border-box; font-size: 18px; line-height: 46px; color: #fff; text-align: center; transition: all 0.4s;}
.nyllx a:hover {color: #333; background-color: #fff;}

.nyllxnr {display: flex; flex-wrap: wrap; justify-content: space-between; width:100%; padding: 30px 20px; box-sizing: border-box; background-color: #f4f4f4;}
.nyllxdh {width: 100%; padding: 0 0 0 60px; box-sizing: border-box; background-image: url("../../UploadFiles/bj/toplx.png"); background-position: 0 50%; background-repeat: no-repeat;}
.nyllxdh p:nth-child(1){font-size: 16px; line-height: 16px; margin-bottom: 8px; color: #666; letter-spacing: 1px;}
.nyllxdh p:nth-child(2){font-size: 26px; line-height: 26px; font-weight: 600; color: #3f3f7a;}

.nyr {width: calc(100% - 300px);}
.nywz {display: flex; justify-content: space-between; width: 100%; padding-bottom: 16px; border-bottom: 1px dashed #eee; margin-bottom: 20px; box-sizing: border-box;}
.nywz p:nth-child(1) {position: relative; box-sizing: border-box; font-size: 26px; line-height: 26px; font-weight: 600; color: #3f3f7a; letter-spacing: 6px;}
.nywz p:nth-child(2) {font-size: 16px; line-height: 26px; color: #666; padding-left: 24px; background-image: url("../../UploadFiles/bj/wzdh.png"); background-size: 20px 26px; background-repeat: no-repeat;}
.nywz p:nth-child(3) a {font-size: 16px; line-height: 26px; color: #666;}

.nynr{width: 100%;}

@media(max-width:1200px){.nybj {padding: 30px 2%;}}
@media(max-width:980px){.nyl{display: none;} .nyr {width: 100%;} .nylcplb li a {font-size: 22px;};.nywz p:nth-child(2){font-size: 26px;}}

/*关于我们*/
.nygy {margin-top: 40px;}
.nygy p{max-height: 999px;font-size: 20px; line-height: 40px; text-align: justify; text-indent:40px; color: #333; letter-spacing: 1px;}
@media(max-width:980px){.nygy p{font-size: 32px; text-indent:48px;}}

/*图片栏目*/
.nytplb {display: flex; flex-wrap: wrap; width: 100%;}
.nytplb li {width: calc((100% - 90px) / 4);margin-right: 30px;margin-bottom: 30px;}
.nytplb li:nth-child(4n){margin-right: 0;}
.nytplb li a {position: relative; display: block; width: 100%; padding-bottom: 20px; background-color: #f7f8f9;box-shadow: 0 0 2px rgba(0,0,0,0.2);}
.nytplb li a::before {content: "";position: absolute;bottom: 0;left:0;width: 0;height: 2px; background-color:#3f3f7a; transition: all 0.4s;}
.nytplb li a .nytplb {position: relative; width: 100%; overflow: hidden;}
.nytplb li a .nytplb::after {content: ""; position: absolute; top: 15px; left: 15px; z-index: 20; width: 20px; height: 20px; background-image: url("../../UploadFiles/bj/cptb.png"); opacity: 0; transition: all 0.4s;}
.nytplb li a .nytplb::before {content: ""; position:absolute; top: -60px; left: -145px; z-index: 10; width: 120px; height: 120px; background-color: #3f3f7a; transform:rotate(45deg); transition: all 0.4s;}
.nytplb li a .nytplb img{display: block; width: 100%; transition: all 0.4s;}
.nytplb li a p:nth-child(2) {padding: 0 20px;box-sizing: border-box; font-size: 20px; line-height: 56px; color: #212121; text-align: center; overflow: hidden; text-overflow:ellipsis; white-space: nowrap;}
.nytplb li a p:nth-child(3) {display: flex; justify-content: space-between; width: 90px; margin: 0 auto; font-size: 17px; line-height: 17px; color: #3f3f7a; transition: all 0.4s;}
.nytplb li a p:nth-child(3) span{display: block; width: 17px;height: 17px;background-image: url("../../UploadFiles/bj/cptb2.png");}
.nytplb li a:hover::before{width: 100%;} 
.nytplb li a:hover .nytplb::after {opacity: 1;}
.nytplb li a:hover .nytplb::before {left: -60px;} 
.nytplb li a:hover .nytplb img{transform:scale(1.2);}
.nytplb li a:hover p:nth-child(3) {width: 100px;}
@media(max-width:1440px){.nytplb li {width: calc((100% - 60px) / 3);}.nytplb li:nth-child(4n){margin-right: 30px;}.nytplb li:nth-child(3n){margin-right: 0;}}
@media(max-width:980px){.nytplb li a p:nth-child(2){ffont-size: 22px;}}

.nyxwbt{font-size: 26px;color: #424242;line-height: 50px;font-weight: 600; text-align: center;margin-bottom: 40px;}
.nyxwnr{width: 100%;margin: 0 auto;}

.nph_tj ul{width: 100%;overflow: hidden;padding: 0 20px;box-sizing: border-box;}
.nph_tj ul li{width: 50%;float: left;font-size: 16px;margin-top: 20px;}
.nph_tj ul li{overflow: hidden;text-overflow:ellipsis;white-space: nowrap;}
.nph_tj ul li:nth-child(2){text-align: right;}

/*产品页*/
.nycpflsj {display: none; justify-content: center; flex-wrap: wrap; width: 100%; margin:10px 0 0;}
.nycpflsj li {width: calc((100% - 120px) / 5);margin-right: 30px;margin-bottom: 30px;}.nycpflsj li:nth-child(5),.nycpflsj li:nth-child(8){margin-right: 0;}
.nycpflsj li a {display: block; width: 100%; font-size: 22px; line-height: 54px; color: #333; text-align: center; background-color: #f5f5f5;}
.nycpflsj li a:hover{color: #fff; background-color: #3f3f7a;}
@media(max-width:980px){.nycpflsj {display: flex;}}

.nycpjjbt{width: 100%;background-color: #3f3f7a;margin: 40px 0 20px;}
.nycpjjbt p{display: block; width: 160px; margin-left: 4px; font-size: 22px; line-height: 48px; color: #333; text-align: center; background-color: #f7f8f9;}

.nycpjj p{max-height: 999px; font-size: 18px; line-height: 42px; color: #333; ;letter-spacing: 1px; text-indent:36px;}
.nycpjj p img{display: block;max-width: 800px; margin: 0 auto;}
.nycpjj p span{max-height: 999px; font-size: 18px; line-height: 42px; color: #333; ;letter-spacing: 1px;}
.nycpjj table{width: 100%;}
@media(max-width:980px){.nycpjj p{font-size: 22px; text-indent:44px;}}

/*新闻动态*/
.nyxwlb {width: 100%;}
.nyxwlb li {width: 100%;margin-bottom: 20px;}
.nyxwlb li a{display: block; width: 100%; border: 1px solid #e1e1e1; padding: 29px; box-sizing: border-box; transition: all 0.6s;}
.nyxwlb li a p:nth-child(1) {position: relative; display: flex; justify-content: space-between; width: 100%; padding-bottom: 10px; border-bottom: 1px solid #e1e1e1; font-size: 18px; line-height: 38px; color: #212121;}
.nyxwlb li a p:nth-child(1)::before {content: ""; position: absolute; bottom: 0; left: 0; width: 0; height: 1px; background-color: #3f3f7a; transition: all 0.6s;}
.nyxwlb li a p:nth-child(1) span {font-size: 16px; color: #333; text-align: right;}
.nyxwlb li a p:nth-child(2) {max-height: 999px; margin-top: 23px; font-size: 16px; line-height: 28px; color: #999; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; overflow: hidden;} 
.nyxwlb li a:hover {box-shadow: 0 4px 6px rgba(0,0,0,0.2);}
.nyxwlb li a:hover p:nth-child(1) {color: #3f3f7a;}
.nyxwlb li a:hover p:nth-child(1) span {color: #3f3f7a;}
.nyxwlb li a:hover p:nth-child(1)::before {width: 100%;}
@media(max-width:980px){.nyxwlb li a p:nth-child(1){font-size: 24px;}.nyxwlb li a p:nth-child(1) span{font-size: 22px;}.nyxwlb li a p:nth-child(2){font-size: 22px;}}

.name{margin-bottom: 30px; margin-top: 50px; font-size: 24px; line-height: 30px; color: #121212; font-weight: bold; text-align: center;}
.intro p{max-height: 999px; font-size: 18px; line-height: 36px; text-indent:36px;}
.control{display: flex; justify-content: space-between; margin-top: 20px;}
.control p{font-size: 16px;line-height: 30px;}
@media(max-width:980px){.intro p{font-size: 22px; text-indent:44px;}}

/*联系我们*/
.nylxnr:nth-child(1) {font-size: 30px; line-height: 52px; color:#212121; font-weight: 600; text-align: center; letter-spacing: 2px; margin-top: 40px;}
.nylxnr:nth-child(2) {font-size: 22px; line-height: 46px; text-align:center; color: #333; letter-spacing:2px;}
.lxlb {display: flex; flex-direction:row; width: 100%; box-sizing: border-box; margin-top: 40px;flex-wrap: wrap;}
.lxlb li {flex-grow:9; padding: 35px 0; box-sizing: border-box; border-right: 1px solid #e1e1e1; box-sizing: border-box; transition: all 0.4s;width: 50%;}
.lxlb li:nth-last-child(1) {flex-grow:10; border-right: 0;}
.lxlb li img {width: 80px; display: block; margin: 0 auto;}
.lxlb li p:nth-child(2) {font-size: 16px; color: #666; text-align: center; line-height: 30px; margin-top: 12px;}
.lxlb li p:nth-child(3) {font-size: 22px; color: #333; text-align: center; line-height: 36px; letter-spacing: 1px;}
.lxlb li:hover {box-shadow:rgba(0,0,0,.2) 0px 0px 30px;}
.nylxr {width: 100%; height: 462px; margin-top: 40px;}
#dituContent {width: 100%; height: 434px;}
@media (max-width:980px) {.nylxnr:nth-child(1){font-size: 46px};.nylxnr:nth-child(2){font-size: 30px};.lxlb li p:nth-child(2){font-size: 30px;};.lxlb li p:nth-child(3){font-size: 30px;}}



/*文章分页样式*/
#fenye{clear:both; margin:10px 20px 20px 0;}
#fenye a{ width:28px; text-align:center; float:left; border:1px solid #bfbfc7;background:#fff; height:28px; font-size:12px;color:#666; line-height:28px; margin-left:5px;border-radius:3px; display:inline-block;}
#fenye .prev,#fenye .next{width:60px;}
#fenye a.curr{background:#bfbfc7;border:1px solid #bfbfc7;color:#fff;}
#fenye a:hover{background:#bfbfc7;border:1px solid #bfbfc7;color:#fff; text-decoration:none}
#pageNext{ margin:10px;}
#pageNext .prev,#pageNext .next{text-align:center;width: 60px;}
#pageNext a.curr{background: #bfbfc7;border: 1px solid #bfbfc7;color: #fff;}
#pageNext a.curr span{ color:#fff !important;}
#pageNext a{width: 28px;text-align: center;float: left;border: 1px solid #bfbfc7;background: #fff;height: 28px;font-size: 12px;color: #666;line-height: 28px;margin-left: 5px;border-radius: 3px;}
#realname{height: 30px;border: 1px solid #ddd;}
#b1{padding: 5px 10px;background: #ff7d02;color: #fff;border: 1px solid #ff7d02;border-radius: 3px;}

.fenyetips{ display:none}
#pagelist{ line-height:22px;color:#666; padding:15px;}
#pagelist a{ width:28px; text-align:center; float:left; border:1px solid #bfbfc7;background:#fff; height:28px; font-size:12px;color:#666; line-height:28px; margin-left:5px;border-radius:3px;}
#pagelist a.next,#pagelist a.prev{width:60px;}
#pagelist a.curr{ background:#bfbfc7;border:1px solid #bfbfc7;color:#fff;}
#pagelist a:hover{background:#bfbfc7;border:1px solid #bfbfc7;color:#fff; text-decoration:none}
#pagelist a img{ display:block;margin:0 auto;margin-top:12px;}
#pagelist span{line-height:28px; font-size:13px; height:28px; margin-left:10px;}
#pagelist span#totalpage{ margin:0;}
.fenye a img{ display:block;margin:0 auto;margin-top:12px;}

/* 图片分页方式的样式*/
.imagelist{margin:0 auto;width:990px;} /*总宽度*/
.imagelist .imagetop{padding-right:5px;text-align:right;margin:5px;}
.imagelist .imagetop a{color:#767676;}
.imagelist .defaultimagesrc{text-align:center;margin:5px;padding-top:40px;padding-bottom:40px;}
.imagelist .defaultImagesrc img{border:1px solid #f1f1f1;padding:2px}
.imagelist .imageintro{text-align:center;font-size:14px;}
.thumb {height:112px;background:#FFF;padding:5px;}
.thumb_1 {text-align: center;float: left;height: 50px;width: 60px;padding-top: 30px;font-weight: 400;font-size: 14px;color:#000;}
.thumb_1 .font-28{font-size:18px;color:red;}
.thumb_2 {float: left;width: 790px;}
.thumb_2_1 {background:url(qh1.gif) no-repeat 0px 20px;float: left;height: 113px;width: 35px;cursor:pointer;margin-left:10px;_margin-left:0px;}
.thumb_2_2 {background:url(qh2.gif) no-repeat 0px 20px;float: right;height: 113px;width: 35px;cursor:pointer;}
#scrool_div {width:708px;position:relative;height:110px;overflow:hidden;}
#scrool_wrap {height:110px;position:absolute;width:20000px;}
#scrool_wrap li {width:130px;height:100px;float:left;margin-right:10px;}
#scrool_div img{width:126px;height:95px;margin:5px}
.normalthumb img{padding:2px;border:1px solid #F9AF10}
.currthumb img{padding:2px;border:1px solid #ff6600;}

/*组图显示方式的样式*/
.imggrouplist{margin:0 auto;width:90%;}
.imggrouplist li{width:150px;float:left;margin:2px;border:1px #f1f1f1 solid;background:#FFFFFF;padding:5px;text-align:center}
.imggrouplist li img{width:145px;height:120px;}

/*平行显示方式样式*/
.imglist{text-align:center}
.imglist img{border:4px solid #efefef;padding:1px}
.imglist div{margin-bottom:15px}
#pageNext{text-align:right}




.container {
    width: 90%;
    margin: 0 auto;
    padding: 0 20px;
}
/* 颜色变量 */
:root {
    --primary: #0f3460;
    --secondary: #16537e;
    --accent: #d4af37;
    --neutral: #f8f9fa;
    --dark: #212529;
}

/* 滚动滑入动画 */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease, transform 0.8s ease;
}
.fade-in-up { transform: translateY(30px); }
.fade-in-down { transform: translateY(-30px); }
.fade-in-left { transform: translateX(-40px); }
.fade-in-right { transform: translateX(30px); }
.fade-in.active {
    opacity: 1;
    transform: translate(0, 0);
}

/* 鼠标悬停效果 */
.scale-hover {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.scale-hover:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08);
}


/* ====================================== */
/* 导航栏 - 响应式
/* ====================================== */
#navbar {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(255,255,255,0.95);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}
.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}
.logo {
    display: flex;
    align-items: center;
    gap: 8px;
}
.logo-icon {
    width: 42px;
    height: 42px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 22px;
    font-weight: bold;
}
.logo h2 {
    font-size: 20px;
    color: var(--primary);
}
.nav-menu {
    display: flex;
    gap: 35px;
}
.nav-item {
    color: var(--primary);
    font-weight: 500;
    cursor: default;
    transition: color 0.3s;
    font-size: 17px;
}
.nav-item:hover {
    color: var(--accent);
}
.mobile-menu-btn {
    display: none;
    font-size: 26px;
    color: var(--primary);
    cursor: default;
}

/* ====================================== */
/* Banner - 响应式
/* ====================================== */
#home {
    height: 80vh;
    position: relative;
    background: linear-gradient(135deg, #0f3460, #16537e);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    color: white;
    text-align: center;
}
.banner-bg {
    position: absolute;
    inset: 0;
    background: url(../UploadFiles/bj/bg1.jpg);
    background-size: cover;
    background-position: center;
    opacity: 0.6;
}
.banner-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.3);
}
.banner-content {
    position: relative;
    z-index: 2;
    padding: 0 20px;
}
.banner-title {
    font-size: 56px;
    margin-bottom: 25px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.banner-desc {
    font-size: 22px;
    max-width: 800px;
    margin: 0 auto 45px;
}
.banner-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}
.btn {
    padding: 15px 35px;
    border-radius: 6px;
    font-weight: bold;
    cursor: default;
    transition: 0.3s;
    font-size: 18px;
}
.btn-primary {
    background: var(--accent);
    color: var(--primary);
}

/* ====================================== */
/* 通用区块样式
/* ====================================== */
section {
    padding: 40px 0;
}
.section-title {
    text-align: center;
    margin-bottom: 50px;
    color: var(--primary);
}
.section-title h2 {
    font-size: 38px;
    margin-bottom: 10px;
}
.title-line {
    width: 70px;
    height: 4px;
    background: var(--accent);
    margin: 0 auto;
}

/* ====================================== */
/* 网格布局 - 响应式核心
/* ====================================== */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 45px;
    align-items: center;
}
.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}
.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

/* 卡片样式 */
.card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0,0,0,0.05);
    height: 100%;
}
.card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.card:hover img {
    transform: scale(1.05);
}
.card-body {
    padding: 25px;
}


/* ====================================== */
/* 关于我们
/* ====================================== */
.about-text h3 {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 20px;
}
.about-text p {
    margin-bottom: 15px;
    line-height: 1.8;
    font-size: 17px;
}
.about-info {
    display: flex;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}
.about-info-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #666;
    font-size: 16px;
}
.about-card {
    background: #f5f5f5;
    padding: 25px;
    border-radius: 12px;
}




/* ====================================== */
/* 业务领域
/* ====================================== */
.business-card {
    text-align: center;
    padding: 35px 20px;
    height: 100%;
}
.business-icon {
    width: 70px;
    height: 70px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin: 0 auto 20px;
}
.business-card h4 {
    font-size: 22px;
    color: var(--primary);
    margin-bottom: 15px;
}
.business-card p {
    font-size: 17px;
    line-height: 1.7;
}


/* ====================================== */
/* 核心优势
/* ====================================== */
.advantage-item {
    text-align: center;
    padding: 30px 20px;
    border: 1px solid #eee;
    border-radius: 12px;
    transition: border-color 0.3s;
    height: 100%;
}
.advantage-item:hover {
    border-color: var(--accent);
}
.advantage-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin: 0 auto 15px;
}
.advantage-item h4 {
    font-size: 19px;
    color: var(--primary);
    margin-bottom: 10px;
}
.advantage-item p {
    font-size: 16px;
    color: #666;
}


/* ====================================== */
/* 新闻动态
/* ====================================== */
.news-date {
    color: #999;
    font-size: 15px;
    margin-bottom: 10px;
}
.news-title {
    font-size: 19px;
    color: var(--primary);
    margin-bottom: 10px;
}
.news-desc {
    color: #666;
    font-size: 16px;
    line-height: 1.7;
}


/* ====================================== */
/* 页脚 - 响应式
/* ====================================== */
footer {
    background: var(--primary);
    color: white;
    padding: 60px 0 25px;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1fr 1fr;
    gap: 35px;
    margin-bottom: 35px;
}
.footer-title {
    font-size: 20px;
    margin-bottom: 25px;
}
.footer-list {
    list-style: none;
}
.footer-list li {
    margin-bottom: 12px;
    color: rgba(255,255,255,0.7);
    font-size: 16px;
}
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 25px;
    text-align: center;
    color: rgba(255,255,255,0.6);
    font-size: 15px;
}










/* ====================================== */
/* 响应式媒体查询 - 平板/手机适配
/* ====================================== */
/* 平板设备 (宽度≤1024px) */
@media (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 手机设备 (宽度≤768px) */
@media (max-width: 768px) {
    /* 导航栏 */
    .container{
        width: 96%;
    }
    .nav-menu {
        display: none;
    }
    .mobile-menu-btn {
        display: block;
    }
    .logo h2 {
        font-size: 18px;
    }

    /* Banner */
    #home {
        height: 70vh;
    }
    .banner-title {
        font-size: 38px;
    }
    .banner-desc {
        font-size: 18px;
    }

    /* 标题 */
    .section-title h2 {
        font-size: 30px;
    }

    /* 网格布局 - 手机全部1列 */
    .grid-2,
    .grid-3,
    .grid-4,
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    /* 间距调整 */
    section {
        padding: 60px 0;
    }
    .about-info {
        flex-direction: column;
        gap: 10px;
    }
}

/* 小屏手机 (宽度≤480px) */
@media (max-width: 480px) {
    .banner-title {
        font-size: 30px;
    }
    .btn {
        padding: 12px 25px;
        font-size: 16px;
    }
}