@charset "utf-8";

/* ========== 全局重置 & 基础 ========== */
*{margin:0;padding:0;box-sizing:border-box;}
html{min-width:1180px;width:100%;scroll-behavior:smooth;}
body{font-size:14px;background:#fff;font-family:"Microsoft Yahei","Arial",Verdana,Arial,sans-serif;line-height:1.6;color:#333;-webkit-font-smoothing:antialiased;}
ol,ul,li{list-style:none;}
a{text-decoration:none;color:#333;transition:all .35s ease;cursor:pointer;}
a:hover{color:#ae381e!important;}
em,i{font-style:normal;}
h1,h2,h3,h4,h5,h6,th{font-weight:normal;}
img{border:0;max-width:100%;height:auto;vertical-align:middle;}
input,textarea,select,button{border:0;background:none;outline:0;font-family:"Microsoft Yahei";}
button{cursor:pointer;}
.clearfix::after{content:".";display:block;visibility:hidden;height:0;clear:both;}
.wrapper{width:1300px;margin:0 auto;position:relative;}
.fl{float:left;}
.fr{float:right;}
.boxwrapper{overflow:hidden;}

/* ========== 颜色变量 ========== */
:root{
  --primary: #ae381e;
  --primary-dark: #983823;
  --primary-light: #c00;
  --gray-bg: #f8f8f8;
  --gray-light: #f5f5f5;
  --border: #ddd;
  --text: #333;
  --text-light: #666;
  --text-lighter: #888;
}

/* ========== 头部 Header ========== */
.header{width:100%;height:98px;border-bottom:1px solid #ddd;background:#fff;min-width:1180px;}
.logo{height:44px;float:left;margin-top:22px;display:flex;align-items:center;}
.logo a{display:block;height:100%;}
.logo img{display:block;width:auto;height:100%;}
.logo-text{margin-left:12px;display:flex;flex-direction:column;justify-content:center;}
.logo-text strong{font-size:22px;color:var(--primary-dark);line-height:1.2;}
.logo-text small{font-size:11px;color:#888;letter-spacing:1px;text-transform:uppercase;}

.ewm_box{float:right;}
.ewm_box .tel{height:98px;padding-left:52px;display:flex;justify-content:center;align-items:center;flex-direction:column;background:url(../images/phone_icon.svg) no-repeat left center;background-size:36px;}
.ewm_box .tel p{font-size:24px;color:#af371d;font-weight:bolder;line-height:1.4;}

/* ========== 导航 Nav ========== */
.nav{width:100%;position:relative;z-index:99999;min-width:1180px;background:#fff;border-bottom:1px solid #eee;}
.navfixed{position:fixed;left:0;top:0;box-shadow:0 2px 8px rgba(0,0,0,.1);}
.nav ul{float:left;}
.nav ul>li{float:left;position:relative;padding:0 6px;}
.nav ul>li>a{display:block;min-width:48px;height:50px;line-height:50px;color:#555;font-size:15px;text-align:center;padding:0 10px;position:relative;}
.nav ul>li>a span{display:inline-block;width:8px;height:4px;background:url(../images/nav_down.svg) no-repeat left center;vertical-align:middle;margin-left:6px;position:relative;top:-2px;transition:all .4s;}
.nav ul>li>a i{display:block;width:0;height:3px;background:var(--primary);position:absolute;left:0;bottom:0;transition:all .3s;}
.nav ul>li.active>a,.nav ul>li:hover>a{color:var(--primary)!important;}
.nav ul>li.active>a i,.nav ul>li:hover>a i{width:100%;}
.nav_child{width:180px;text-align:center;position:absolute;left:50%;transform:translateX(-50%);top:50px;z-index:999;}
.nav_child ol{padding:12px 0;background:#fff;box-shadow:0 4px 12px rgba(0,0,0,.15);transform:translateY(10px);transition:all .35s;opacity:0;visibility:hidden;border-radius:4px;}
.nav_child li a{display:block;height:38px;line-height:38px;font-size:13px;color:#555;transition:all .25s;}
.nav_child li a:hover{background:var(--primary);color:#fff!important;}
.nav ul>li:hover>a span{transform:rotate(-180deg);}
.nav ul>li:hover>.nav_child ol{transform:translateY(0);opacity:1;visibility:visible;}
.hsearch{float:right;width:200px;height:32px;border:1px solid #ddd;margin-top:9px;border-radius:16px;overflow:hidden;}
.hsearch_form{padding-left:16px;padding-right:36px;height:32px;position:relative;overflow:hidden;}
.hsearch_form input[type="text"]{display:block;width:100%;height:32px;line-height:32px;font-size:12px;color:#666;}
.hsearch_form .btn{display:block;width:32px;height:32px;background:#ae381e url(../images/search_btn.svg) no-repeat center;position:absolute;right:0;top:0;cursor:pointer;background-size:18px;border-radius:0 16px 16px 0;}

/* ========== Banner ========== */
.banner{z-index:66;position:relative;}
.banner .slick-slide{position:relative;}
.banner .slick-slide img{width:100%;display:block;}
.banner .slick-dots{width:100%;text-align:center;position:absolute;bottom:24px;z-index:10;}
.banner .slick-dots li{display:inline-block;margin:0 6px;}
.banner .slick-dots li button{display:block;width:14px;height:14px;font-size:0;background:#ccc;border-radius:50%;cursor:pointer;border:none;}
.banner .slick-dots li.slick-active button{background:var(--primary);}

/* ========== Section 通用 ========== */
.section{padding:60px 0;}
.section-gray{background:var(--gray-bg);}
.home_title{font-size:30px;font-weight:bold;text-align:center;color:#222;}
.home_desc{font-size:0;text-align:center;margin-top:12px;}
.home_desc span{font-size:14px;display:inline-block;padding:0 14px;color:#adadad;position:relative;text-transform:uppercase;letter-spacing:1px;}
.home_desc span i{display:block;width:182px;height:1px;background:#ddd;position:absolute;top:50%;}
.home_desc span i.l{left:-182px;}
.home_desc span i.r{right:-182px;}
.home_more{display:block;width:192px;height:36px;line-height:36px;background:#fff;border:1px solid #ddd;border-radius:18px;margin:40px auto 0;color:#666;text-align:center;font-size:14px;}
.home_more:hover{background:var(--primary);border-color:var(--primary);color:#fff!important;}

/* ========== 行业解决方案 ========== */
.solution{padding:60px 0;background:#fff;}
.solutionBox{margin-top:36px;}
.solutionBox>ul{display:flex;flex-wrap:wrap;margin:0 -10px;}
.solutionBox>ul>li{width:20%;padding:0 10px;margin-bottom:20px;}
.solutionBox .item{padding:1px;background:#f5f5f5;position:relative;border-radius:6px;overflow:hidden;transition:all .4s ease;}
.solutionBox .item:hover{box-shadow:0 12px 40px rgba(0,0,0,.2);transform:translateY(-8px);}
.solutionBox .pic{max-height:238px;overflow:hidden;}
.solutionBox .pic img{width:100%;height:220px;object-fit:cover;transition:transform .4s ease;}
.solutionBox .item:hover .pic img{transform:scale(1.12);}
.solutionBox .txt{padding:16px 18px 20px 14px;}
.solutionBox .title{font-size:22px;height:36px;line-height:36px;overflow:hidden;color:#333;white-space:nowrap;text-overflow:ellipsis;font-weight:600;}
.solutionBox .desc{color:#666;line-height:22px;margin-top:8px;font-size:13px;}
.solutionBox .desc p{position:relative;padding:5px 0 5px 14px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:4;overflow:hidden;}
.solutionBox .desc p span{display:block;position:absolute;left:0;top:5px;color:var(--primary);}
.solutionBox .line{width:0;height:3px;background:var(--primary);transition:all .4s;position:absolute;left:0;bottom:0;}
.solutionBox .item:hover .line{width:100%;}

/* ========== 服务 ========== */
.service{padding:60px 0 40px;background:#fff;}
.serviceBox{margin-top:36px;}
.serviceBox>ul{display:flex;flex-wrap:wrap;margin:0 -14px;}
.serviceBox>ul>li{width:33.333%;padding:0 14px;margin-bottom:30px;}
.serviceBox .item{text-align:center;transition:all .4s ease;border-radius:6px;}
.serviceBox .item:hover{transform:translateY(-8px);}
.serviceBox .pic{max-height:263px;overflow:hidden;border:1px solid #efefef;border-radius:6px;transition:box-shadow .4s ease;}
.serviceBox .item:hover .pic{box-shadow:0 12px 40px rgba(0,0,0,.2);}
.serviceBox .pic img{width:100%;transition:transform .4s ease;}
.serviceBox .item:hover .pic img{transform:scale(1.12);}
.serviceBox .title{font-size:26px;margin-top:24px;font-weight:600;}
.serviceBox .desc{font-size:15px;color:#666;margin-top:8px;line-height:1.6;}

/* ========== 客户案例 ========== */
.case{padding:60px 0;background:var(--gray-light);}
.caseTitle{margin-top:30px;}
.caseTitle ul{font-size:0;text-align:center;}
.caseTitle li{display:inline-block;height:44px;line-height:44px;font-size:15px;background:#25221e;color:#fff;padding:0 40px;margin:0 4px 6px;cursor:pointer;border-radius:4px;transition:all .3s;user-select:none;}
.caseTitle li.active,.caseTitle li:hover{background:var(--primary-light);}
.caseBox{margin-top:28px;}
.caseBox ul{display:flex;flex-wrap:wrap;margin:0 -10px;}
.caseBox ul>li{width:33.333%;padding:0 10px;margin-bottom:20px;}
.caseBox .item{display:block;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.08);transition:all .4s ease;}
.caseBox .item:hover{box-shadow:0 12px 40px rgba(0,0,0,.2);transform:translateY(-8px);}
.caseBox .pic{overflow:hidden;height:210px;}
.caseBox .pic img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.caseBox .item:hover .pic img{transform:scale(1.12);}
.caseBox .txt{padding:14px 16px;}
.caseBox .title{font-size:17px;height:36px;line-height:36px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;border-bottom:1px solid #eee;font-weight:600;}
.caseBox .info{margin-top:10px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.caseBox .info span{height:26px;line-height:26px;background:#f0f0f0;font-size:12px;color:#222;padding:0 14px;border-radius:13px;transition:all .3s ease;cursor:default;}
.caseBox .info span:hover{background:var(--primary);color:#fff;}
.caseBox .info a{height:30px;line-height:30px;background:var(--primary-light);color:#fff!important;font-size:12px;padding:0 18px;border-radius:15px;margin-left:auto;}
.caseBox .info a:hover{background:var(--primary-dark)!important;}

/* ========== 关于我们 ========== */
.about{padding:60px 0;background:url(../images/about_bg.svg) no-repeat center top;background-size:cover;}
.about .home_desc span{color:#fff;}
.about .home_desc span i{background:rgba(255,255,255,.5);}
.aboutBox{margin-top:34px;background:#fff;border-radius:8px;overflow:hidden;display:flex;flex-wrap:wrap;}
.about_video,.about_text{flex:1;min-width:400px;}
.about_video{flex:1;min-width:400px;border-radius:8px;overflow:hidden;margin-top:25px;align-self:center;}
.about_video img{width:100%;display:block;}
.about_text{padding:40px 50px;display:flex;flex-direction:column;justify-content:center;}
.about_text .title{font-size:28px;font-weight:600;color:#222;}
.about_text .line{width:51px;height:3px;background:#d4d4d4;margin-top:16px;}
.about_text .desc{line-height:28px;margin-top:16px;color:#555;font-size:15px;}
.about_text .desc a{color:var(--primary);margin-left:8px;font-weight:600;}
.about_slider{margin-top:30px;display:flex;gap:12px;}
.about_slider img{width:32%;border-radius:4px;object-fit:cover;aspect-ratio:2/3;}

/* ========== 技术支持/服务 ========== */
.team{padding:60px 0;background:var(--gray-bg);}
.teamBox{margin-top:34px;}
.teamBox>ul{display:flex;flex-wrap:wrap;margin:0 -8px;}
.teamBox>ul>li{width:25%;padding:0 8px;margin-bottom:16px;}
.teamBox .item{display:block;position:relative;border-radius:6px;overflow:hidden;transition:all .4s ease;}
.teamBox .item:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.18);}
.teamBox .pic{overflow:hidden;height:197px;}
.teamBox .pic img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.teamBox .item:hover .pic img{transform:scale(1.12);}
.teamBox .title{font-size:16px;height:36px;line-height:36px;text-align:center;margin-top:8px;font-weight:600;}

/* ========== 新闻动态 ========== */
.news{padding:60px 0;background:#fff;}
.newstit{margin-top:30px;}
.newstit ul{font-size:0;text-align:center;}
.newstit li{display:inline-block;margin:0 6px;padding:0 18px;height:32px;line-height:32px;font-size:15px;cursor:pointer;border-radius:16px;transition:all .3s;}
.newstit li.active,.newstit li:hover{background:var(--primary-light);color:#fff;}
.newsBox{margin-top:20px;}
.newsItem ul{display:flex;flex-wrap:wrap;}
.newsItem>ul>li{width:50%;}
.newsItem .item{display:block;padding:24px 24px 24px 140px;position:relative;border-bottom:1px solid #eee;transition:all .35s ease;min-height:110px;border-radius:6px;}
.newsItem .item:hover{background:#fff;box-shadow:0 8px 28px rgba(0,0,0,.12);transform:translateX(6px);}
.newsItem .time{width:110px;position:absolute;left:14px;top:50%;transform:translateY(-50%);text-align:right;}
.newsItem .time span{display:block;font-family:"Arial";font-size:36px;font-weight:bold;color:var(--primary);line-height:1;}
.newsItem .time em{display:block;font-size:14px;color:#666;margin-top:6px;}
.newsItem .title{font-size:16px;font-weight:600;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;margin-bottom:8px;}
.newsItem .desc{font-size:13px;color:#888;line-height:22px;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2;overflow:hidden;}

/* ========== 合作伙伴 ========== */
.customer{padding:42px 0;background:var(--gray-bg);}
.customerBox{margin-top:30px;}
.customerBox>ul{display:flex;flex-wrap:wrap;}
.customerBox>ul>li{width:16.666%;padding:6px;}
.customerBox .item{display:block;border:1px solid #ddd;background:#fff;padding:20px;text-align:center;border-radius:6px;transition:all .3s;height:100px;display:flex;align-items:center;justify-content:center;}
.customerBox .item:hover{border-color:var(--primary);box-shadow:0 4px 12px rgba(0,0,0,.08);}
.customerBox .item .placeholder{font-size:15px;color:#999;font-weight:600;}

/* ========== CTA Banner ========== */
.cta-banner{background:linear-gradient(135deg,var(--primary-dark),var(--primary));padding:60px 0;text-align:center;color:#fff;}
.cta-banner h2{font-size:32px;margin-bottom:12px;}
.cta-banner p{font-size:16px;opacity:.9;margin-bottom:24px;}
.btn-white{display:inline-block;padding:14px 40px;background:#fff;color:var(--primary)!important;border-radius:30px;font-size:16px;font-weight:600;transition:all .35s;border:none;cursor:pointer;}
.btn-white:hover{background:#f0f0f0;transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,0,0,.2);}

/* ========== 页脚 ========== */
.footer{background:var(--primary-dark);color:#fff;overflow:hidden;}
.footer a{color:rgba(255,255,255,.85);}
.footer a:hover{color:#ffd4c4!important;}
.foot_model{padding:60px 0 30px;}
.foot_model dl{float:left;margin-right:6%;}
.foot_model .nlast{margin-right:0;float:right;width:420px;}
.foot_model dt{font-size:18px;color:#fff;margin-bottom:16px;font-weight:600;}
.foot_model dd{margin-top:4px;}
.foot_model li{height:34px;line-height:34px;font-size:14px;}
.foot_model li a{color:rgba(255,255,255,.8);}
.foot_model li a:hover{color:#fff!important;}
.foot_copy{line-height:24px;padding:20px 0;color:rgba(255,255,255,.8);border-top:1px solid rgba(255,255,255,.15);font-size:13px;}
.foot_copy .fl{max-width:84%;}
.foot_copy .fr{max-width:14%;text-align:right;}
.foot_copy a{color:rgba(255,255,255,.8);}

/* ========== 内页 Banner ========== */
.ny_banner{position:relative;overflow:hidden;}
.ny_banner img{width:100%;display:block;}
.ny_banner .banner-overlay{position:absolute;left:0;top:0;width:100%;height:100%;background:rgba(0,0,0,.35);display:flex;align-items:center;justify-content:center;flex-direction:column;color:#fff;}
.ny_banner .banner-overlay h1{font-size:36px;margin-bottom:10px;font-weight:600;}
.ny_banner .banner-overlay .breadcrumb{font-size:14px;opacity:.9;}
.ny_banner .banner-overlay .breadcrumb a{color:#fff;}

/* ========== 内页导航 ========== */
.navigation{border-bottom:1px solid #eee;background:#fafafa;}
.ej_nav{padding:0;}
.ej_nav ul{display:flex;flex-wrap:wrap;}
.ej_nav li a{display:block;padding:16px 28px;font-size:15px;color:#555;border-bottom:3px solid transparent;transition:all .3s;}
.ej_nav li.active a,.ej_nav li a:hover{color:var(--primary)!important;border-bottom-color:var(--primary);background:none!important;}

/* ========== 内页通用 ========== */
.inner_title{font-size:28px;text-align:center;font-weight:600;margin-bottom:10px;}
.inner_desc{text-align:center;color:#666;margin-bottom:40px;font-size:15px;}

/* 公司简介页 */
.about-flex{display:flex;flex-wrap:wrap;gap:40px;align-items:flex-start;}
.about-flex .about-img{flex:0 0 480px;max-width:480px;height:380px;object-fit:cover;border-radius:8px;transition:transform .4s ease,box-shadow .4s ease;}
.about-flex .about-img:hover{transform:scale(1.08);box-shadow:0 16px 48px rgba(0,0,0,.25);}
.about-flex .about-text{flex:1;min-width:350px;}
.about-flex .about-text h2{font-size:28px;margin-bottom:20px;font-weight:600;}
.about-flex .about-text p{margin-bottom:14px;line-height:28px;color:#555;font-size:15px;}

/* 产品页 */
.product-section{margin-bottom:30px;}
.product-section-title{font-size:26px;margin-bottom:16px;font-weight:600;padding-bottom:12px;border-bottom:2px solid var(--primary);display:inline-block;}
.product-grid{display:flex;flex-wrap:wrap;gap:20px;margin-top:20px;}
.product-grid .product-item{flex:0 0 calc(33.333% - 14px);background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.06);transition:all .35s;}
.product-grid .product-item:hover{box-shadow:0 12px 40px rgba(0,0,0,.2);transform:translateY(-8px);}
.product-grid .product-item img{width:100%;aspect-ratio:1/1;object-fit:cover;object-position:50% 65%;transition:transform .4s ease;}
.product-grid .product-item:hover img{transform:scale(1.12);}
.product-grid .product-item-body{padding:18px;}
.product-grid .product-item-body h4{font-size:17px;font-weight:600;margin-bottom:8px;}
.product-grid .product-item-body p{color:#666;font-size:13px;line-height:22px;margin-bottom:12px;}
.product-specs{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px;}
.product-specs span{font-size:11px;background:var(--gray-light);color:#666;padding:4px 10px;border-radius:12px;}
.btn-sm{display:inline-block;padding:8px 20px;font-size:13px;border-radius:20px;border:1px solid var(--primary);color:var(--primary)!important;transition:all .3s;}
.btn-sm:hover{background:var(--primary);color:#fff!important;}

/* 方案页 */
.solution-detail{padding:40px 0;}
.solution-detail:nth-child(even){background:var(--gray-light);}

/* 案例页 */
.cases-filter{text-align:center;margin-bottom:36px;}
.filter-btn{display:inline-block;padding:10px 24px;margin:0 6px 8px;font-size:14px;border:1px solid #ddd;border-radius:20px;cursor:pointer;transition:all .3s;background:#fff;}
.filter-btn.active,.filter-btn:hover{background:var(--primary);color:#fff!important;border-color:var(--primary);}
.cases-grid{display:flex;flex-wrap:wrap;gap:20px;}
.case-card{flex:0 0 calc(33.333% - 14px);background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 12px rgba(0,0,0,.08);transition:all .4s ease;position:relative;}
.case-card:hover{box-shadow:0 12px 40px rgba(0,0,0,.2);transform:translateY(-8px);}
.case-card-img{width:100%;height:200px;object-fit:cover;transition:transform .4s ease;}
.case-card:hover .case-card-img{transform:scale(1.12);}
.case-card-badge{position:absolute;top:12px;left:12px;background:var(--primary);color:#fff;padding:4px 12px;border-radius:12px;font-size:12px;}
.case-card-body{padding:18px;}
.case-card-body h3{font-size:16px;font-weight:600;margin-bottom:8px;}
.case-card-body p{font-size:13px;color:#666;line-height:22px;margin-bottom:12px;}
.case-results{display:flex;flex-wrap:wrap;gap:6px;}
.case-results span{font-size:11px;background:#e8f5e9;color:#2e7d32;padding:4px 10px;border-radius:10px;}

/* 新闻页 */
.news-list-item{display:flex;gap:24px;padding:20px 0;border-bottom:1px solid #eee;transition:all .3s;}
.news-list-item:hover{background:#fafafa;padding-left:12px;}
.news-list-date{flex:0 0 80px;text-align:center;background:var(--gray-light);padding:12px 8px;border-radius:6px;}
.news-list-date .day{font-size:28px;font-weight:bold;color:var(--primary);line-height:1;}
.news-list-date .mon{font-size:12px;color:#888;margin-top:4px;}
.news-list-content{flex:1;}
.news-list-content h4{font-size:17px;font-weight:600;margin-bottom:6px;}
.news-list-content p{font-size:14px;color:#666;line-height:24px;}

/* 联系页 */
.contact-grid{display:flex;flex-wrap:wrap;gap:40px;}
.contact-info{flex:1;min-width:350px;}
.contact-info h2{font-size:28px;margin-bottom:12px;font-weight:600;}
.contact-info>p{color:#666;line-height:26px;margin-bottom:24px;}
.contact-card{display:flex;gap:16px;padding:14px 0;border-bottom:1px solid #eee;align-items:flex-start;}
.contact-card-icon{font-size:24px;flex-shrink:0;}
.contact-card-text h5{font-size:15px;font-weight:600;margin-bottom:4px;}
.contact-card-text p{color:#666;font-size:14px;}
.contact-form-box{flex:0 0 420px;background:var(--gray-light);padding:30px;border-radius:8px;}
.contact-form-box h3{font-size:22px;font-weight:600;margin-bottom:20px;}
.form-group{margin-bottom:16px;}
.form-group label{display:block;margin-bottom:6px;font-size:14px;font-weight:600;color:#444;}
.form-group .req{color:var(--primary);margin-right:2px;}
.form-control{width:100%;height:44px;line-height:44px;padding:0 14px;border:1px solid #ddd;border-radius:6px;font-size:14px;background:#fff;transition:border-color .3s;}
.form-control:focus{border-color:var(--primary);}
textarea.form-control{height:100px;line-height:1.6;padding:12px 14px;resize:vertical;}
.btn-primary{display:inline-block;padding:14px 36px;background:var(--primary);color:#fff!important;border-radius:30px;font-size:15px;font-weight:600;cursor:pointer;transition:all .35s;border:none;}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 6px 20px rgba(174,56,30,.3);}
.btn-lg{padding:16px 44px;font-size:17px;}
.map-box{text-align:center;padding:40px 20px;background:var(--gray-light);border-radius:8px;margin-top:40px;color:#888;}

/* ========== 企业文化（三栏宽版） ========== */
.cultureBox{display:flex;gap:30px;margin-top:40px;}
.culture-item{flex:1;background:#fff;border-radius:10px;overflow:hidden;box-shadow:0 2px 16px rgba(0,0,0,.06);transition:all .4s ease;}
.culture-item:hover{box-shadow:0 12px 40px rgba(0,0,0,.2);transform:translateY(-8px);}
.culture-img{height:260px;overflow:hidden;}
.culture-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.culture-item:hover .culture-img img{transform:scale(1.12);}
.culture-body{padding:32px 28px;position:relative;}
.culture-number{position:absolute;right:24px;top:-20px;font-size:64px;font-weight:800;color:rgba(174,56,30,.08);line-height:1;pointer-events:none;}
.culture-body h3{font-size:22px;font-weight:700;color:#222;margin-bottom:14px;position:relative;padding-bottom:14px;}
.culture-body h3::after{content:"";display:block;width:40px;height:3px;background:var(--primary);position:absolute;left:0;bottom:0;}
.culture-body p{font-size:15px;color:#666;line-height:28px;}

/* 时间轴 */
.timeline{position:relative;padding:20px 0;}
.timeline::before{content:"";position:absolute;left:50%;top:0;width:3px;height:100%;background:#eee;transform:translateX(-50%);}
.timeline-item{position:relative;padding:24px 0;width:50%;}
.timeline-item:nth-child(odd){padding-right:50px;text-align:right;}
.timeline-item:nth-child(even){margin-left:auto;padding-left:50px;}
.timeline-item::before{content:"";position:absolute;top:32px;width:16px;height:16px;background:var(--primary);border-radius:50%;border:3px solid #fff;box-shadow:0 0 0 3px var(--primary);}
.timeline-item:nth-child(odd)::before{right:-10px;}
.timeline-item:nth-child(even)::before{left:-10px;}
.timeline-year{font-size:18px;font-weight:bold;color:var(--primary);margin-bottom:6px;}
.timeline-title{font-size:17px;font-weight:600;margin-bottom:4px;}
.timeline-desc{font-size:14px;color:#666;line-height:24px;}

/* 返回顶部 */
.back-to-top{position:fixed;right:24px;bottom:40px;width:44px;height:44px;background:var(--primary);color:#fff;border-radius:50%;font-size:20px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:9999;opacity:0;visibility:hidden;transition:all .3s;box-shadow:0 4px 12px rgba(0,0,0,.2);}
.back-to-top.show{opacity:1;visibility:visible;}
.back-to-top:hover{background:var(--primary-dark);transform:translateY(-3px);}

/* 右侧浮动菜单 */
.rightmenu{position:fixed;right:20px;top:50%;transform:translateY(-50%);z-index:99999;}
.rightmenu li{margin:4px 0;position:relative;}
.rightmenu li a{display:flex;flex-direction:column;align-items:center;justify-content:center;width:64px;height:64px;background:#bfbfbf;border-radius:6px;color:#fff;font-size:12px;transition:all .3s;}
.rightmenu li a:hover{background:var(--primary);}
.rightmenu li .icon{font-size:22px;margin-bottom:2px;}
.rightmenu li .telBox{height:64px;line-height:64px;white-space:nowrap;background:var(--primary);font-size:18px;color:#fff;padding:0 20px;position:absolute;right:70px;top:0;opacity:0;visibility:hidden;transition:all .3s;border-radius:6px;font-weight:600;}
.rightmenu li:hover .telBox{opacity:1;visibility:visible;}

/* 滚动动画 */
.fade-up{opacity:0;transform:translateY(30px);transition:all .6s ease;}
.fade-up.visible{opacity:1;transform:translateY(0);}

/* 响应式 */
@media only screen and (max-width:1399px){
  .wrapper{width:1180px;}
  .about-flex .about-img{flex:0 0 420px;max-width:420px;}
}