*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:"Helvetica Neue",Helvetica,Arial,"Microsoft Yahei","Hiragino Sans GB",sans-serif;background:#f8f8f8;color:#333;line-height:1.6;font-size:14px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
ul,ol{list-style:none}
h1,h2,h3,h4,h5,h6{font-weight:bold}
.container{max-width:1200px;margin:0 auto;padding:0 15px}
.text-center{text-align:center}
.clearfix::after{content:'';display:block;clear:both}
.fl{float:left}
.fr{float:right}
section{display:block}

/* ===== 通用按钮 ===== */
.btn{display:inline-block;background:#425cbb;color:#fff;padding:14px 50px;border-radius:30px;border:none;cursor:pointer;font-size:14px;transition:all .3s;text-align:center}
.btn:hover{background:#546cc3}
.btn-o{background:transparent;border:2px solid rgba(255,255,255,.4);color:#fff;padding:10px 30px;border-radius:20px;font-size:12px}
.btn-o:hover{border-color:#fff}
.btn-sm{padding:10px 40px;font-size:12px;border-radius:30px}

/* ===== 顶部信息栏 + 导航 (topbox 整体浮于 banner: lotbox + menubox 一起可见) ===== */
.topbox{position:relative;z-index:99;width:100%}
/* 首页: topbox 绝对浮于全屏 banner 之上 (lotbox信息栏 + menubox 一起叠在 banner 上) */
body.home .topbox{position:absolute;left:0;top:0}
.topbox.fixed{position:fixed !important;left:0;top:0;z-index:999;box-shadow:0 0 60px rgba(0,0,0,.07)}
.topbox .lotbox{background:#232323;color:#bbb;font-size:12px;line-height:36px;transition:background .3s}
.topbox .lotbox .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.topbox .lotbox .lot-wel{}
.topbox .lotbox .lot-contact{display:flex;gap:18px;align-items:center}
.topbox .lotbox .lot-contact span i{color:#425cbb;margin-right:6px}
.topbox .lotbox .lot-contact .lot-tel{color:#fff}
.topbox .lotbox .lot-contact .lot-email{color:#999}
/* 滚动/内页变白后, 信息栏也跟随变浅, 与白色 menubox 协调 */
body.home .topbox.fixed .lotbox{background:#fff;border-bottom:1px solid #eee}
body.home .topbox.fixed .lotbox .lot-wel{color:#999}
body.home .topbox.fixed .lotbox .lot-contact .lot-email{color:#999}
body.home .topbox.fixed .lotbox .lot-contact .lot-tel{color:#425cbb}

.topbox .menubox{width:100%;position:relative;background:transparent;border-bottom:1px solid rgba(255,255,255,.12);transition:all .3s}
.topbox.fixed .menubox,body:not(.home) .topbox .menubox{background:#fff;border-bottom:1px solid #eee}
.menubox-inner{max-width:1200px;margin:0 auto;padding:0 15px;display:flex;align-items:center;justify-content:space-between;height:80px}
.nav-logo{display:flex;align-items:center;text-decoration:none}
.logo-ico{flex-shrink:0;margin-right:12px}
.logo-name{display:flex;flex-direction:column;line-height:1.1}
.logo-name b{font-size:22px;color:#fff;font-weight:bold;letter-spacing:1px}
.logo-name i{font-size:11px;color:#fff;opacity:.7;font-style:normal;letter-spacing:2px;margin-top:3px}
/* 首页未滚动: 白字(透明导航). 滚动后/内页: 深字白底 */
.topbox.fixed .logo-name b,body:not(.home) .logo-name b{color:#333}
.topbox.fixed .logo-name i,body:not(.home) .logo-name i{color:#999}
.topbox.fixed .logo-ico path[fill="#fff"],body:not(.home) .logo-ico path[fill="#fff"]{fill:#425cbb}

.nav-menu{flex:1;display:flex;justify-content:center}
.nav-menu .menu{display:flex}
.nav-menu .menu li{position:relative}
.nav-menu .menu>li>a{display:block;padding:0 20px;color:#fff;font-size:15px;line-height:80px;transition:opacity .25s}
body:not(.home) .nav-menu .menu>li>a{color:#333}
.nav-menu .menu>li>a:hover{opacity:.65}
.nav-menu .menu>li.on>a{font-weight:bold}
.topbox.fixed .nav-menu .menu>li>a,body:not(.home) .nav-menu .menu>li>a{color:#333}
.topbox.fixed .nav-menu .menu>li.on>a,body:not(.home) .nav-menu .menu>li.on>a{color:#425cbb}
.nav-sub{position:absolute;left:0;top:100%;min-width:12em;background:#232323;padding:14px 16px;display:none;z-index:20;box-shadow:0 6px 18px rgba(0,0,0,.18)}
.nav-sub ul{list-style:none;margin:0;padding:0}
.nav-sub ul li{float:none}
.nav-menu .menu li:hover .nav-sub{display:block}
.nav-sub ul li a{display:block;padding:6px 8px;color:#fff;font-size:13px;line-height:20px;opacity:.6;transition:all .2s;white-space:nowrap}
.nav-sub ul li a:hover{opacity:1;padding-left:16px;color:#fff}

.nav-right{display:flex;align-items:center}
.nav-tel{background:#425cbb;color:#fff !important;padding:9px 22px;border-radius:24px;font-size:14px;display:flex;align-items:center;gap:7px}
.nav-tel i{font-size:15px}
.nav-tel:hover{background:#546cc3}

.m-btn{display:none;font-size:26px;color:#fff;cursor:pointer;background:none;border:none;position:absolute;right:15px;top:24px;z-index:101}
body:not(.home) .m-btn,.topbox.fixed .m-btn{color:#333}

/* 移动抽屉 */
.m-drawer{position:fixed;left:-80%;top:0;width:80%;max-width:320px;height:100%;background:#fff;z-index:200;overflow-y:auto;transition:left .3s;box-shadow:2px 0 20px rgba(0,0,0,.15)}
.m-drawer.open{left:0}
.m-drawer .md-top{background:#425cbb;color:#fff;padding:18px 20px;font-size:16px;font-weight:bold;display:flex;justify-content:space-between;align-items:center}
.m-drawer .md-top .md-close{font-size:24px;cursor:pointer;background:none;border:none;color:#fff}
.m-drawer .md-nav a{display:block;padding:13px 20px;border-bottom:1px solid #eee;color:#333;font-size:15px}
.m-drawer .md-nav a.on{color:#425cbb;font-weight:bold}
.m-drawer .md-nav .md-sub a{padding-left:40px;color:#666;font-size:13px}
.m-mask{position:fixed;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.5);z-index:150;display:none}
.m-mask.open{display:block}

/* ===== Banner 轮播 ===== */
.owl-banner{position:relative;overflow:hidden;background:#232323}
.owl-viewport{overflow:hidden}
.owl-track{display:flex;transition:transform .6s ease}
.owl-slide{position:relative;flex:0 0 100%;height:600px;overflow:hidden}
.owl-slide .bg{position:absolute;left:0;top:0;width:100%;height:100%;background-size:cover;background-position:center}
.owl-slide::before{content:'';position:absolute;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.42);z-index:1}
.owl-slide .slide-wrap{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:#fff;padding:0 20px}
.owl-slide h1{font-size:50px;margin-bottom:20px;font-weight:bold;letter-spacing:2px}
.owl-slide .lead{font-size:18px;opacity:.92;margin-bottom:30px}
.owl-dots{position:absolute;left:0;bottom:30px;width:100%;text-align:center;z-index:3}
.owl-dots .owl-dot{display:inline-block;width:36px;height:5px;margin:0 5px;background:rgba(255,255,255,.4);border-radius:3px;cursor:pointer;transition:all .3s}
.owl-dots .owl-dot.on{background:#fff;width:46px}
.owl-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;border:none;font-size:22px;cursor:pointer;z-index:3;display:flex;align-items:center;justify-content:center;transition:background .25s}
.owl-arrow:hover{background:rgba(66,92,187,.8)}
.owl-arrow.prev{left:30px}
.owl-arrow.next{right:30px}

/* ===== 通用区块 ===== */
.section{padding:90px 0}
.section.gray{background:#f4f4f4}
.sec-title{margin-bottom:50px;text-align:center}
.sec-title h3{font-size:32px;color:#333;margin-bottom:8px}
.sec-title small{display:block;font-size:13px;color:#999;letter-spacing:2px;text-transform:uppercase;margin-top:6px}
.sec-title p{color:#999;font-size:14px;margin-top:10px}
.sec-line{width:60px;height:3px;background:#425cbb;margin:14px auto 0}

/* ===== 关于简介（首页首屏） ===== */
.intro-section{padding:80px 0}
.intro-section .lead{color:#767676;font-size:16px;line-height:1.9;margin-bottom:14px}

/* ===== 三卡 features ===== */
.features{display:flex}
.features .feature-item{flex:1;padding:60px 30px;text-align:center;transition:all .3s}
.features .feature-item i{font-size:60px;color:#576abc;margin-bottom:22px;display:block}
.features .feature-item h4{font-size:22px;margin-bottom:18px}
.features .feature-item p{font-size:15px;color:#767676;line-height:1.8;width:84%;margin:0 auto}
.features .feature-item.f-white{background:#fff;color:#333}
.features .feature-item.f-blue{background:#465bb6;color:#fff}
.features .feature-item.f-blue i{color:#fff}
.features .feature-item.f-blue p{color:rgba(255,255,255,.85)}
.features .feature-item.f-gray{background:#f4f4f4;color:#333}

/* ===== 服务价格 pricing ===== */
.pricing-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pricing{background:#fff;padding:40px 30px;text-align:center;transition:all .3s;border:1px solid #eee}
.pricing:hover{box-shadow:0 10px 40px rgba(66,92,187,.12);transform:translateY(-6px)}
.pricing h5{font-size:20px;color:#333;margin:0 0 6px}
.pricing h6{font-size:13px;color:#999;font-weight:normal;margin:0 0 24px}
.pricing .price{color:#425cbb;margin-bottom:20px}
.pricing .price .cur{font-size:22px;vertical-align:top}
.pricing .price .num{font-size:50px;font-weight:bold}
.pricing hr{border:none;border-top:1px solid #eee;margin:0 0 24px}
.pricing p{color:#999;font-size:14px;line-height:1.7;margin-bottom:26px;min-height:48px}
.pricing .btn{padding:12px 36px;font-size:13px}

/* ===== 案例中心 / 产品展示 owl-case ===== */
.owl-case-wrap{position:relative;padding:0 10px}
.owl-case-viewport{overflow:hidden}
.owl-case-track{display:flex;transition:transform .5s ease;gap:20px}
.owl-case-track > .owl-case-item{flex:0 0 calc((100% - 40px) / 3);background:#fff;display:block;color:#333;transition:box-shadow .3s}
.owl-case-item:hover{box-shadow:0 10px 36px rgba(0,0,0,.1)}
.owl-case-item .m{overflow:hidden}
.owl-case-item img{width:100%;height:240px;object-fit:cover;transition:transform .45s ease}
.owl-case-item:hover img{transform:scale(1.06)}
.owl-case-item .text{padding:22px}
.owl-case-item .text h4{font-size:17px;margin-bottom:8px}
.owl-case-item .text p{color:#999;font-size:13px;line-height:1.6}
.owl-case-item .case-cat{display:inline-block;font-size:12px;color:#425cbb;background:rgba(66,92,187,.08);padding:3px 12px;border-radius:12px;margin-bottom:10px}

/* ===== 资讯中心（深色新闻区，独特） ===== */
.section-news{background-size:cover;background-position:center;position:relative;color:#fff;padding:90px 0}
.section-news::before{content:'';position:absolute;left:0;top:0;width:100%;height:100%;background:rgba(35,35,35,.78)}
.section-news .container{position:relative;z-index:1}
.section-news .sec-title h3{color:#fff;font-size:34px}
.section-news .sec-title small{color:rgba(255,255,255,.6)}
.section-news .sec-title .sec-line{background:#425cbb}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.news-item{display:block;color:#fff;background:rgba(255,255,255,.06);padding:24px 22px;border:1px solid rgba(255,255,255,.1);transition:all .3s}
.news-item:hover{background:rgba(66,92,187,.35);border-color:rgba(66,92,187,.6)}
.news-item .n-date{font-size:12px;color:rgba(255,255,255,.55);margin-bottom:10px}
.news-item .n-cat{display:inline-block;background:#425cbb;color:#fff;font-size:11px;padding:2px 10px;border-radius:10px;margin-right:8px}
.news-item h4{font-size:15px;line-height:1.5;height:48px;overflow:hidden;margin-bottom:10px}
.news-item p{font-size:12px;line-height:1.8;color:rgba(255,255,255,.6);opacity:.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-item:hover p{opacity:1}

/* ===== 蓝色 CTA 条 space ===== */
.space-cta{background:#425cbb;color:#fff;padding:50px 0;text-align:center;font-size:22px}
.space-cta .container{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap}
.space-cta .btn-o{margin-left:6px}

/* ===== 友情链接 / TAG ===== */
.flink-bar{background:#fff;border-top:1px solid #eee;padding:30px 0}
.flink-bar .fblk{display:flex;align-items:center;flex-wrap:wrap;gap:6px 18px;margin-bottom:6px}
.flink-bar .fblk h4{font-size:14px;color:#333;margin:0;font-weight:bold}
.flink-bar .fblk a{font-size:13px;color:#666}
.flink-bar .fblk a:hover{color:#425cbb}
.flink-bar .fblk.tag a{display:inline-block;font-size:12px;color:#888;border:1px solid #e8e8e8;padding:2px 12px;border-radius:14px}

/* ===== 页脚 ===== */
.footer{background:#232323;color:#777;font-size:13px;padding:70px 0 0}
.footer-top{display:grid;grid-template-columns:2.4fr 1fr 1fr 1.6fr 1fr;gap:30px;padding-bottom:40px}
.footer .f-about .f-logo{display:flex;align-items:center;margin-bottom:18px}
.footer .f-about .f-logo .logo-name b{color:#fff}
.footer .f-about .f-logo .logo-name i{color:#999}
.footer .f-about p{line-height:1.9;color:#888;font-size:13px}
.footer h6{font-size:16px;color:#fff;margin-bottom:18px;line-height:1.4}
.footer ul li{line-height:2.2}
.footer ul li a{color:#999;font-size:13px}
.footer ul li a:hover{color:#fff}
.footer .f-contact p{color:#999;line-height:1.9;margin-bottom:6px}
.footer .f-contact p i{color:#425cbb;margin-right:8px;width:14px}
.footer .f-contact .f-tel{color:#fff;font-size:22px;font-weight:bold;margin:8px 0}
.footer .f-qr{text-align:center}
.footer .f-qr img{width:120px;height:120px;margin:0 auto 10px;background:#fff;padding:6px;border-radius:6px}
.footer .f-qr p{color:#999;font-size:12px}
.footer .f-contact .btn{padding:12px 26px;font-size:13px;margin-top:14px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;color:#888;font-size:12px}
.footer-bottom a{color:#888}
.footer-bottom a:hover{color:#fff}
.footer-bottom .beian-link{display:inline-block}

/* ===== 右侧悬浮客服 ===== */
.cndns-right{position:fixed;right:10px;bottom:20%;z-index:90;border:1px solid #e0e0e0;background:#f1f1f1}
.cndns-btn{display:block;width:60px;height:60px;border-top:1px solid #e0e0e0;text-align:center;color:#425cbb;text-decoration:none;cursor:pointer;background:none}
.cndns-btn:first-child{border-top:none}
.cndns-btn span{font-size:24px;line-height:36px;color:#425cbb}
.cndns-btn p{font-size:11px;color:#333;line-height:1.2}
.cndns-btn:hover{background:#fff}
.cndns-top{cursor:pointer}

/* ===== 内页 banner ===== */
.n-banner{height:300px;background-size:cover;background-position:center;position:relative;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff}
.n-banner::before{content:'';position:absolute;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.5)}
.n-banner .container{position:relative;z-index:1}
.n-banner h1{font-size:42px;margin-bottom:12px}
.n-banner .lead{font-size:15px;opacity:.9}

/* ===== 面包屑 ===== */
.crumb{background:#fff;border-bottom:1px solid #eee;padding:18px 0;font-size:13px;color:#999}
.crumb .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.crumb a{color:#999}
.crumb a:hover{color:#425cbb}
.crumb .cur{color:#425cbb}
.crumb i{margin:0 8px;color:#ccc;font-style:normal}
.crumb-path span{color:#425cbb}

/* ===== 产品列表 ===== */
.cat-bar{margin-bottom:36px;text-align:center}
.cat-bar .cat-a{display:inline-block;padding:8px 24px;margin:0 5px;border-radius:22px;background:#fff;border:1px solid #e8e8e8;color:#666;font-size:14px;transition:all .25s}
.cat-bar .cat-a:hover{color:#425cbb;border-color:#425cbb}
.cat-bar .cat-a.on{background:#425cbb;color:#fff;border-color:#425cbb}
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-grid .owl-case-item{flex:none}

/* 分页 */
.pagination{padding:30px 0;text-align:center}
.pagination a,.pagination span{display:inline-block;margin:0 4px;padding:7px 14px;border:1px solid #ddd;border-radius:4px;color:#888;font-size:13px;background:#fff}
.pagination a:hover{color:#077ee3;border-color:#077ee3}
.pagination .on{background:#425cbb;border-color:#425cbb;color:#fff}

/* ===== 产品详情 ===== */
.pd-top{display:flex;gap:40px;background:#fff;padding:30px;margin-bottom:30px;flex-wrap:wrap}
.pd-top .pd-img{flex:0 0 42%}
.pd-top .pd-img img{width:100%;height:340px;object-fit:cover;border-radius:4px}
.pd-top .pd-info{flex:1;min-width:280px}
.pd-top .pd-cat{display:inline-block;font-size:12px;color:#fff;background:#425cbb;padding:3px 14px;border-radius:12px;margin-bottom:14px}
.pd-top h1{font-size:26px;color:#333;margin-bottom:14px;line-height:1.4}
.pd-top .pd-brief{color:#767676;font-size:14px;line-height:1.9;margin-bottom:22px}
.pd-params{width:100%;border-collapse:collapse;margin-bottom:22px;font-size:13px}
.pd-params th,.pd-params td{border:1px solid #eee;padding:10px 14px;text-align:left}
.pd-params th{background:#f4f4f4;color:#666;font-weight:normal;width:140px}
.pd-params td{color:#555}
.pd-quote{display:inline-block;background:#425cbb;color:#fff;padding:12px 36px;border-radius:26px;font-size:14px}
.pd-quote:hover{background:#546cc3}
.pd-block{background:#fff;padding:30px;margin-bottom:24px}
.pd-block h3{font-size:18px;color:#425cbb;margin-bottom:18px;padding-left:14px;border-left:4px solid #425cbb;line-height:1.2}
.pd-block .pd-p{color:#666;font-size:14px;line-height:1.9;margin-bottom:12px}
.pd-feat{display:grid;grid-template-columns:1fr 1fr;gap:12px 30px}
.pd-feat li{color:#555;font-size:14px;padding-left:26px;position:relative;line-height:1.8}
.pd-feat li::before{content:'\2714';position:absolute;left:0;color:#425cbb;font-weight:bold}
.relate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.relate-grid .rel-card{display:block;background:#fff;color:#333;transition:box-shadow .3s}
.relate-grid .rel-card:hover{box-shadow:0 8px 26px rgba(0,0,0,.08)}
.relate-grid .rel-card img{width:100%;height:140px;object-fit:cover}
.relate-grid .rel-card .rc-name{padding:12px;font-size:13px;text-align:center}

/* ===== 新闻列表 ===== */
.news-list .nl-item{display:flex;background:#fff;margin-bottom:24px;overflow:hidden;transition:box-shadow .3s}
.news-list .nl-item:hover{box-shadow:0 8px 30px rgba(0,0,0,.08)}
.news-list .nl-item .nl-img{flex:0 0 240px}
.news-list .nl-item .nl-img img{width:240px;height:170px;object-fit:cover;transition:transform .45s}
.news-list .nl-item:hover .nl-img img{transform:scale(1.05)}
.news-list .nl-item .nl-body{flex:1;padding:24px 28px;min-width:0}
.news-list .nl-item .nl-meta{margin-bottom:10px;font-size:12px;color:#999}
.news-list .nl-item .nl-cat{display:inline-block;background:rgba(66,92,187,.1);color:#425cbb;padding:2px 12px;border-radius:12px;margin-right:12px}
.news-list .nl-item .nl-date i{margin-right:5px}
.news-list .nl-item h3{font-size:18px;color:#333;margin-bottom:10px;transition:color .25s}
.news-list .nl-item:hover h3{color:#425cbb}
.news-list .nl-item .nl-desc{color:#888;font-size:13px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 新闻/案例详情 ===== */
.article{background:#fff;padding:40px 30px;max-width:900px;margin:0 auto}
.article .a-ttl{text-align:center;font-size:26px;color:#333;margin-bottom:16px;line-height:1.4}
.article .a-meta{text-align:center;color:#999;font-size:13px;margin-bottom:26px;padding-bottom:20px;border-bottom:1px solid #eee}
.article .a-meta span{margin:0 12px}
.article .a-meta .a-cat{color:#425cbb}
.article .a-p{color:#555;font-size:15px;line-height:2;margin-bottom:18px;text-indent:2em}
.article .a-fig{margin:24px 0;text-align:center}
.article .a-fig img{max-width:100%;height:auto;margin:0 auto;border-radius:4px}
.article .a-fig figcaption{color:#999;font-size:12px;margin-top:8px}

.detail-tool{text-align:center;padding:30px 0;border-top:1px solid #eee;margin-top:30px}
.detail-tool .btn-sm{margin:0 6px}
.detail-tool .b1{background:#3e5995}
.detail-tool .b2{background:#425cbb}
.detail-tool .b3{background:#999}
.detail-tool .btn-sm:hover{opacity:.85}
.returnlist{display:inline-block}

/* ===== 关于页 ===== */
.about-intro{display:flex;gap:40px;align-items:center;background:#fff;padding:40px;margin-bottom:30px;flex-wrap:wrap}
.about-intro .ai-img{flex:0 0 46%}
.about-intro .ai-img img{width:100%;height:340px;object-fit:cover;border-radius:4px}
.about-intro .ai-body{flex:1;min-width:280px}
.about-intro h2{font-size:24px;color:#333;margin-bottom:6px}
.about-intro .ai-en{color:#999;font-size:13px;letter-spacing:2px;margin-bottom:18px}
.about-intro p{color:#767676;font-size:14px;line-height:1.9;margin-bottom:12px}
.about-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:#fff;padding:40px 30px;margin-bottom:30px;text-align:center}
.about-stats .stat-item .stat-num{font-size:40px;color:#425cbb;font-weight:bold;line-height:1}
.about-stats .stat-item .stat-num em{font-size:18px;font-style:normal}
.about-stats .stat-item .stat-label{color:#999;font-size:13px;margin-top:8px}
.timeline{background:#fff;padding:40px;margin-bottom:30px;position:relative}
.timeline h3{font-size:20px;color:#425cbb;margin-bottom:30px;padding-left:14px;border-left:4px solid #425cbb}
.tl-list{position:relative;padding-left:28px}
.tl-list::before{content:'';position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:#e8e8e8}
.tl-list li{position:relative;padding-bottom:26px}
.tl-list li:last-child{padding-bottom:0}
.tl-list li::before{content:'';position:absolute;left:-28px;top:4px;width:14px;height:14px;border-radius:50%;background:#425cbb;border:3px solid #fff;box-shadow:0 0 0 2px #425cbb}
.tl-list .tl-year{font-size:20px;color:#425cbb;font-weight:bold;margin-bottom:4px}
.tl-list .tl-title{font-size:15px;color:#333;margin-bottom:4px}
.tl-list .tl-desc{color:#888;font-size:13px;line-height:1.7}
.culture-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-bottom:30px}
.culture-card{background:#fff;padding:36px 26px;text-align:center;border-top:3px solid #425cbb}
.culture-card i{font-size:42px;color:#425cbb;margin-bottom:16px;display:block}
.culture-card h4{font-size:18px;color:#333;margin-bottom:12px}
.culture-card p{color:#888;font-size:14px;line-height:1.8}
.team-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.team-card{background:#fff;padding:30px 20px;text-align:center}
.team-card img{width:120px;height:120px;border-radius:50%;object-fit:cover;margin:0 auto 16px;border:3px solid #f4f4f4}
.team-card h4{font-size:18px;color:#333;margin-bottom:6px}
.team-card p{color:#999;font-size:13px}

/* ===== 联系页 ===== */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-bottom:40px}
.contact-card{background:#fff;padding:34px 22px;text-align:center;border-top:3px solid transparent;transition:all .3s}
.contact-card:hover{border-top-color:#425cbb;transform:translateY(-4px);box-shadow:0 8px 26px rgba(0,0,0,.08)}
.contact-card i{font-size:34px;color:#425cbb;margin-bottom:14px;display:block}
.contact-card h4{font-size:16px;color:#333;margin-bottom:8px}
.contact-card p{color:#666;font-size:14px;line-height:1.6;word-break:break-all}
.contact-form{background:#fff;padding:40px;max-width:760px;margin:0 auto}
.contact-form h3{font-size:20px;color:#425cbb;margin-bottom:24px;text-align:center}
.mf-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.mf-input{width:100%;padding:13px 16px;border:1px solid #ddd;border-radius:4px;font-size:14px;outline:none;transition:border-color .2s}
.mf-input:focus{border-color:#425cbb}
.mf-textarea{grid-column:1 / -1;width:100%;padding:13px 16px;border:1px solid #ddd;border-radius:4px;font-size:14px;outline:none;min-height:120px;resize:vertical;font-family:inherit}
.mf-textarea:focus{border-color:#425cbb}
.mf-submit{grid-column:1 / -1;background:#425cbb;color:#fff;border:none;padding:14px;font-size:15px;border-radius:4px;cursor:pointer;transition:background .25s}
.mf-submit:hover{background:#546cc3}

/* ===== fade-in 动画 ===== */
.fade-in{opacity:0;transform:translateY(30px);transition:opacity .7s ease,transform .7s ease}
.fade-in.is-in{opacity:1;transform:none}

/* ===== 图片兜底 ===== */
.img-fallback{display:flex;align-items:center;justify-content:center;color:#fff;font-size:14px}

/* ===== marker / 容器基类 (HTML 组合/标记用) ===== */
.menubox-inner,.lotbox,.lot-contact,.lot-wel,.nav-logo,.logo-name,.nav-menu,.nav-right,.features,.pricing-row,.owl-case-wrap,.owl-case-viewport,.owl-case-track,.owl-case-item,.news-grid,.news-item,.footer-top,.f-about,.f-logo,.f-contact,.f-qr,.cndns-right,.cndns-btn,.crumb,.crumb-path,.cat-bar,.prod-grid,.pagination,.pd-top,.pd-img,.pd-info,.pd-params,.pd-block,.pd-feat,.relate-grid,.rel-card,.rc-name,.news-list,.nl-item,.nl-img,.nl-body,.nl-meta,.article,.a-ttl,.a-meta,.a-p,.a-fig,.detail-tool,.returnlist,.about-intro,.ai-img,.ai-body,.about-stats,.stat-item,.timeline,.tl-list,.culture-grid,.culture-card,.team-grid,.team-card,.contact-grid,.contact-card,.contact-form,.mf-grid,.mf-input,.mf-textarea,.mf-submit,.case-cat,.pd-cat,.nl-cat,.a-cat,.sec-title,.sec-line,.intro-section,.lead,.features .feature-item,.owl-banner,.owl-viewport,.owl-track,.owl-slide,.slide-wrap,.owl-dots,.owl-dot,.owl-arrow,.n-banner,.fblk,.beian-link,.static-nav,.f-nav-col,.f-pro-col,.h-prev,.h-next{min-width:0}
.owl-case-wrap .h-prev,.owl-case-wrap .h-next{position:absolute;top:50%;transform:translateY(-50%);width:44px;height:44px;border-radius:50%;background:rgba(66,92,187,.85);color:#fff;border:none;font-size:22px;cursor:pointer;z-index:5;display:flex;align-items:center;justify-content:center}
.owl-case-wrap .h-prev:hover,.owl-case-wrap .h-next:hover{background:#425cbb}
.owl-case-wrap .h-prev{left:-10px}
.owl-case-wrap .h-next{right:-10px}

/* ===== 响应式 ===== */
/* 内页 topbox 始终 fixed, 需 body 留出导航高度 (lotbox 36 + menubox 80 = 116) */
body:not(.home){padding-top:116px}
@media (max-width:990px){
  body:not(.home){padding-top:64px}
  /* 移动端首页 topbox 由浮动改为静态白底 (全屏 banner 缩到 380px, 浮动会盖内容) */
  body.home .topbox{position:static;background:#fff}
  body.home .topbox .lotbox{background:#fff;border-bottom:1px solid #eee}
  body.home .topbox .lotbox .lot-wel,body.home .topbox .lotbox .lot-contact .lot-email{color:#999}
  body.home .topbox .lotbox .lot-contact .lot-tel{color:#425cbb}
  body.home .topbox .menubox{background:#fff;border-bottom:1px solid #eee}
  body.home .logo-name b{color:#333}body.home .logo-name i{color:#999}
  body.home .logo-ico path[fill="#fff"]{fill:#425cbb}
  body.home .nav-menu .menu>li>a{color:#333}
  body.home .m-btn{color:#333}
  .menubox-inner{height:64px}
  .topbox .lotbox{display:none}
  .nav-menu,.nav-right{display:none}
  .m-btn{display:block}
  .owl-slide{height:380px}
  .owl-slide h1{font-size:32px}
  .owl-slide .lead{font-size:15px}
  .owl-arrow{display:none}
  .features{flex-direction:column}
  .pricing-row{grid-template-columns:1fr}
  .owl-case-item{flex:0 0 calc((100% - 20px) / 2)}
  .news-grid{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .n-banner{height:220px}
  .n-banner h1{font-size:30px}
  .prod-grid{grid-template-columns:1fr 1fr}
  .pd-top{flex-direction:column}
  .pd-top .pd-img{flex:none}
  .relate-grid{grid-template-columns:1fr 1fr}
  .news-list .nl-item{flex-direction:column}
  .news-list .nl-item .nl-img{flex:none}
  .news-list .nl-item .nl-img img{width:100%;height:200px}
  .about-intro{flex-direction:column}
  .about-intro .ai-img{flex:none}
  .about-stats{grid-template-columns:1fr 1fr}
  .culture-grid{grid-template-columns:1fr}
  .team-grid{grid-template-columns:1fr 1fr}
  .contact-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .section{padding:50px 0}
  .sec-title h3{font-size:22px}
  .owl-slide{height:300px}
  .owl-slide h1{font-size:24px;margin-bottom:12px}
  .owl-slide .lead{font-size:13px;margin-bottom:18px}
  .owl-slide .btn{padding:9px 30px;font-size:12px}
  .news-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;text-align:center}
  .footer .f-qr img{margin:0 auto}
  .prod-grid{grid-template-columns:1fr}
  .owl-case-item{flex:0 0 100%}
  .pd-feat{grid-template-columns:1fr}
  .relate-grid{grid-template-columns:1fr 1fr}
  .mf-grid{grid-template-columns:1fr}
  .about-stats{grid-template-columns:1fr 1fr}
  .team-grid{grid-template-columns:1fr}
  .contact-grid{grid-template-columns:1fr}
  .space-cta{font-size:16px;padding:36px 0}
  .cndns-right{display:none}
  .n-banner h1{font-size:24px}
  .article{padding:24px 18px}
  .article .a-ttl{font-size:20px}
}