/* homepage45 - 极简留白模板 纯白大留白+细线+超大排版 */
/* 主色调: #111 近黑 | 深灰: #111 | 中灰: #888 */

:root{
  --min-main:var(--c1,#111111);
  --min-main-rgb:var(--c1rgb,17,17,17);
  --min-dark:#111111;
  --min-gray:#888888;
  --min-light:#fafafa;
  --min-border:#eeeeee;
  --cer-main:var(--c1,#111111);
  --cer-main2:var(--c2,#111111);
}

*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:"Microsoft YaHei","微软雅黑",Arial,sans-serif;color:#333;background:#fff;font-size:14px;line-height:1.6;}
a{text-decoration:none;color:#333;transition:color .2s;}
a:hover{color:var(--min-main);}
img{max-width:100%;display:block;border:0;}
ul,ol,li{list-style:none;}
.m{width:1400px;margin:0 auto;}
.por{position:relative;}
.fl{float:left;}
.fr{float:right;}
.clearfix::after{content:"";display:block;clear:both;}

/* ============ 顶部栏 ============ */
.min-topbar{background:#333;color:#ccc;height:36px;line-height:36px;font-size:12px;}
.min-topbar a{color:#ccc;margin:0 6px;}
.min-topbar a:hover{color:var(--min-main);}
.min-topbar .fl span{margin-right:8px;}

/* ============ 头部LOGO区 ============ */
.min-header{background:#fff;padding:15px 0;}
.min-header .m{display:flex;align-items:center;justify-content:space-between;height:85px;}
.min-logo{flex:none;text-align:left;}
.min-logo img{height:85px;max-width:240px;object-fit:contain;}
.min-tel{display:flex;align-items:center;gap:10px;}
.min-tel-icon{width:44px;height:44px;border-radius:50%;background:var(--min-main);display:flex;align-items:center;justify-content:center;}
.min-tel-icon svg{width:24px;height:24px;fill:#fff;}
.min-tel-text p{font-size:12px;color:#999;}
.min-tel-text h4{font-size:22px;color:var(--min-main);font-weight:bold;}

/* ============ 导航栏 ============ */
.min-nav-wrap{background:#fff;border-bottom:2px solid var(--min-main);box-shadow:0 2px 8px rgba(0,0,0,.06);}
.min-nav-wrap .m{display:flex;align-items:center;justify-content:space-between;height:85px;}
.min-nav-top{display:flex;align-items:center;height:auto;flex:0 1 auto;gap:0;}
.min-logo{flex:none;text-align:left;}
.min-tel{position:static;transform:none;margin-left:22px;}
.min-nav{display:flex;align-items:center;justify-content:flex-end;flex:1 1 auto;min-width:0;}
.min-nav ul{display:flex;justify-content:flex-end;}
.min-nav li{position:relative;}
.min-nav li a{display:block;line-height:85px;padding:0 22px;font-size:16px;color:#333;font-weight:500;border-bottom:3px solid transparent;margin-bottom:-2px;transition:all .25s;}
.min-nav li a:hover,.min-nav li.on a{color:var(--min-main);border-bottom-color:var(--min-main);}
.min-nav li .subnav{position:absolute;top:100%;left:0;background:#fff;min-width:180px;box-shadow:0 4px 12px rgba(0,0,0,.12);display:none;z-index:99;}
.min-nav li:hover .subnav{display:block;}
.min-nav li .subnav a{display:block;line-height:42px;padding:0 18px;font-size:14px;color:#666;border-bottom:1px solid #f0f0f0;white-space:nowrap;}
.min-nav li .subnav a:hover{color:var(--min-main);background:#f7f7f7;}

/* 移动端菜单按钮 */
.min-menu-toggle{display:none;flex-direction:column;justify-content:center;width:30px;height:30px;cursor:pointer;gap:5px;}
.min-menu-toggle span{display:block;height:3px;background:var(--min-main);border-radius:2px;transition:all .3s;}
.min-menu-toggle.on span:nth-child(1){transform:translateY(8px) rotate(45deg);}
.min-menu-toggle.on span:nth-child(2){opacity:0;}
.min-menu-toggle.on span:nth-child(3){transform:translateY(-8px) rotate(-45deg);}

/* ============ Banner轮播 ============ */
.min-banner-wrap{position:relative;overflow:hidden;background:#222;}
.min-banner{width:100%;max-width:1920px;margin:0 auto;position:relative;}
.min-banner .list{position:relative;height:500px;}
.min-banner .list li{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity .8s;}
.min-banner .list li.on{opacity:1;z-index:2;}
.min-banner .list li img{width:100%;height:100%;object-fit:cover;}
.min-banner .slide-dots{position:absolute;bottom:24px;left:50%;right:auto;transform:translateX(-50%);z-index:10;display:flex;gap:10px;}
.min-banner .slide-dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:all .3s;}
.min-banner .slide-dots span.on{background:var(--min-main);width:32px;border-radius:6px;}
.min-banner .slide-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:10;width:48px;height:48px;border-radius:50%;background:rgba(0,0,0,.4);color:#fff;border:0;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background .3s;}
.min-banner .slide-arrow::before{display:none!important;content:none!important;}
.min-banner .slide-arrow svg{width:24px;height:24px;fill:#fff;}
.min-banner .slide-arrow:hover{background:var(--min-main);}
.min-banner .slide-prev{left:20px;}
.min-banner .slide-next{right:20px;}

/* ============ 搜索栏 ============ */
.min-search{background:var(--min-light);padding:20px 0;}
.min-search .hot{display:flex;align-items:center;justify-content:space-between;}
.min-search .left{display:flex;align-items:center;gap:10px;}
.min-search .left b{color:var(--min-main);font-size:16px;}
.min-search .left a{color:#666;margin:0 8px;font-size:14px;}
.min-search .left a:hover{color:var(--min-main);}
.min-search .right{display:flex;align-items:center;}
.min-search .right input.input{width:240px;height:38px;border:2px solid var(--min-main);border-right:none;padding:0 12px;font-size:14px;outline:none;}
.min-search .right input.btn{width:50px;height:38px;background:var(--min-main);border:none;color:#fff;cursor:pointer;font-size:16px;}

/* ============ 通用标题 ============ */
.min-section{padding:56px 0;}
.min-section-title{text-align:center;margin-bottom:40px;}
.min-section-title h3{font-size:36px;color:var(--min-dark);font-weight:bold;letter-spacing:2px;}
.min-section-title h3 span{color:var(--min-main);}
.min-section-title p{font-size:16px;color:var(--min-gray);margin-top:8px;text-transform:uppercase;letter-spacing:3px;}
.min-more{display:inline-block;margin-top:30px;padding:8px 24px;border:1px solid #ccc;color:#666;font-size:14px;transition:all .3s;}
.min-more:hover{background:var(--min-main);border-color:var(--min-main);color:#fff;}

/* ============ 产品中心 ============ */
.min-pro-menu{text-align:center;margin-bottom:30px;}
.min-pro-menu ul{display:inline-flex;gap:15px;flex-wrap:wrap;justify-content:center;}
.min-pro-menu li a{display:block;padding:8px 20px;border:1px solid var(--min-border);color:#666;font-size:14px;transition:all .3s;}
.min-pro-menu li a:hover,.min-pro-menu li.on a{background:var(--min-main);border-color:var(--min-main);color:#fff;}
.min-pro-list{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.min-pro-item{background:#fff;border:1px solid var(--min-border);overflow:hidden;transition:all .3s;}
.min-pro-item:hover{border-color:var(--min-main);box-shadow:0 4px 16px rgba(var(--min-main-rgb),.15);}
.min-pro-item .img{overflow:hidden;aspect-ratio:1;}
.min-pro-item .img img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.min-pro-item:hover .img img{transform:scale(1.08);}
.min-pro-item h3{text-align:center;padding:14px 10px;font-size:15px;color:#333;border-top:1px solid var(--min-border);}
.min-pro-item:hover h3{color:var(--min-main);}

/* ============ 小Banner(CTA) ============ */
.min-cta-banner{background:linear-gradient(135deg,var(--min-main) 0%,#333333 100%);padding:48px 0;color:#fff;position:relative;overflow:hidden;}
.min-cta-banner::before{content:"";position:absolute;top:0;right:0;width:40%;height:100%;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" opacity="0.1"><circle cx="50" cy="50" r="40" fill="white"/></svg>') no-repeat center;background-size:contain;opacity:.1;}
.min-cta-banner .txt{position:relative;z-index:2;}
.min-cta-banner .txt h3{font-size:32px;font-weight:bold;margin-bottom:10px;}
.min-cta-banner .txt p{font-size:16px;opacity:.9;}
.min-cta-banner .txt p span{color:#999999;font-weight:bold;}
.min-cta-banner .zixun{display:flex;align-items:center;gap:16px;position:relative;z-index:2;}
.min-cta-banner .ewm{width:100px;height:100px;background:#fff;padding:5px;border-radius:4px;}
.min-cta-banner .ewm img{width:100%;height:100%;}
.min-cta-banner .zx-btn{display:inline-flex;align-items:center;gap:8px;padding:10px 28px;background:#fff;color:var(--min-main);font-weight:bold;border-radius:24px;font-size:15px;}

/* ============ 工程案例 ============ */
.min-case-wrap{display:flex;gap:20px;}
.min-case-big{flex:0 0 600px;}
.min-case-big .list{position:relative;overflow:hidden;border-radius:4px;}
.min-case-big .item{position:relative;}
.min-case-big .item img{width:100%;height:400px;object-fit:cover;}
.min-case-big .txt{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.7));padding:30px 20px 20px;color:#fff;}
.min-case-big .txt h3{font-size:20px;font-weight:bold;}
.min-case-small{flex:1;display:grid;grid-template-columns:repeat(2,1fr);gap:15px;}
.min-case-small .item{position:relative;overflow:hidden;border-radius:4px;}
.min-case-small .item img{width:100%;height:190px;object-fit:cover;transition:transform .4s;}
.min-case-small .item:hover img{transform:scale(1.06);}
.min-case-small .txt{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(var(--min-main-rgb),.85));padding:12px;color:#fff;text-align:center;}
.min-case-small .txt h3{font-size:14px;}

/* ============ 四大优势 ============ */
.min-adv-section{background:var(--min-light);}
.min-adv-list{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.min-adv-item{text-align:center;padding:30px 20px;background:#fff;border-radius:4px;transition:all .3s;border:1px solid transparent;}
.min-adv-item:hover{border-color:var(--min-main);box-shadow:0 6px 24px rgba(var(--min-main-rgb),.12);transform:translateY(-4px);}
.min-adv-icon{width:80px;height:80px;margin:0 auto 20px;border-radius:50%;background:#f7f7f7;display:flex;align-items:center;justify-content:center;transition:all .3s;}
.min-adv-item:hover .min-adv-icon{background:var(--min-main);}
.min-adv-icon svg{width:40px;height:40px;fill:var(--min-main);transition:fill .3s;}
.min-adv-item:hover .min-adv-icon svg{fill:#fff;}
.min-adv-item h3{font-size:18px;color:#333;font-weight:bold;margin-bottom:12px;}
.min-adv-item p{font-size:14px;color:#999;line-height:1.8;}

/* ============ 关于我们 ============ */
.min-about-wrap{display:flex;align-items:center;gap:40px;}
.min-about-text{flex:1;}
.min-about-text .stit{font-size:20px;color:var(--min-main);font-weight:bold;margin-bottom:15px;}
.min-about-text .desc{font-size:14px;color:#666;line-height:2;margin-bottom:20px;text-indent:2em;}
.min-about-img{flex:0 0 500px;}
.min-about-img img{width:100%;border-radius:4px;}

/* ============ 新闻中心 ============ */
.min-news-wrap{display:flex;gap:30px;}
.min-news-big{flex:0 0 580px;}
.min-news-big .list{position:relative;overflow:hidden;border-radius:4px;}
.min-news-big .item{position:relative;}
.min-news-big .item img{width:100%;height:320px;object-fit:cover;}
.min-news-big .txt{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(0,0,0,.7));padding:20px;color:#fff;}
.min-news-big .txt h3{font-size:18px;font-weight:bold;}
.min-news-list{flex:1;}
.min-news-list .item{display:flex;gap:15px;padding:15px 0;border-bottom:1px dashed var(--min-border);align-items:flex-start;}
.min-news-list .item:last-child{border-bottom:none;}
.min-news-list .time{flex:none;text-align:center;width:60px;padding:5px;background:var(--min-light);border-left:3px solid var(--min-main);}
.min-news-list .time b{display:block;font-size:22px;color:var(--min-main);line-height:1;}
.min-news-list .time span{font-size:12px;color:#999;}
.min-news-list .txt{flex:1;min-width:0;}
.min-news-list .txt h3{font-size:16px;color:#333;font-weight:500;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.min-news-list .txt p{font-size:13px;color:#999;line-height:1.6;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}

/* ============ 页脚 ============ */
.min-footer{background:#1a1a1a;color:#999;padding:0;}
.min-foot-cta{background:#222;padding:30px 0;border-bottom:1px solid #333;}
.min-foot-cta-in{display:flex;align-items:center;justify-content:space-between;}
.min-foot-cta-text strong{display:block;font-size:24px;color:#fff;margin-bottom:6px;}
.min-foot-cta-text span{font-size:14px;color:#999;}
.min-foot-cta-tel{display:inline-flex;align-items:center;gap:8px;padding:10px 30px;background:var(--min-main);color:#fff;font-size:16px;border-radius:4px;font-weight:bold;}
.min-foot-cta-tel svg{width:20px;height:20px;fill:#fff;}
.min-foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.5fr;gap:40px;padding:50px 0;}
.min-foot-brand p{font-size:13px;line-height:1.8;margin:15px 0;}
.min-foot-brand-name img{filter:brightness(0) invert(1);max-height:50px;}
.min-foot-socials{display:flex;gap:10px;margin-top:15px;}
.min-foot-socials a{width:36px;height:36px;border-radius:50%;background:#333;display:flex;align-items:center;justify-content:center;transition:background .3s;}
.min-foot-socials a:hover{background:var(--min-main);}
.min-foot-socials svg{width:18px;height:18px;fill:#ccc;}
.min-foot-col h4{font-size:16px;color:#fff;margin-bottom:18px;font-weight:bold;}
.min-foot-col h4::before{content:"";display:inline-block;width:3px;height:16px;background:var(--min-main);margin-right:8px;vertical-align:middle;}
.min-foot-nav li{margin-bottom:10px;}
.min-foot-nav li a{font-size:13px;color:#999;}
.min-foot-nav li a:hover{color:var(--min-main);}
.min-foot-contact li{display:flex;align-items:flex-start;gap:8px;margin-bottom:12px;font-size:13px;color:#999;}
.min-foot-contact svg{width:16px;height:16px;fill:var(--min-main);flex:none;margin-top:3px;}
.min-foot-links{border-top:1px solid #333;padding:20px 0;font-size:13px;}
.min-foot-links span{color:#666;}
.min-foot-links a{color:#999;margin:0 8px;}
.min-foot-bottom{border-top:1px solid #333;padding:20px 0;text-align:center;font-size:13px;color:#666;}
.min-foot-bottom a{color:#666;}

/* ============ 侧边浮动 ============ */
.min-side-tool{position:fixed;right:15px;bottom:15%;z-index:99;display:flex;flex-direction:column;gap:10px;}
.min-side-tool a{width:48px;height:48px;border-radius:4px;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.1);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;color:#666;transition:all .3s;}
.min-side-tool a:hover{background:var(--min-main);color:#fff;}
.min-side-tool svg{width:20px;height:20px;fill:currentColor;margin-bottom:2px;}

/* ============ 通用页面布局 ============ */
.main-wrap{display:flex;gap:24px;padding:20px 0;}
.main-box{flex:1;min-width:0;}
.side-box{flex:none;width:240px;}

/* ============ Index页面专用样式 ============ */
.min-sec{padding:56px 0;}
.min-head{text-align:center;margin-bottom:40px;}
.min-head .min-label{display:inline-block;font-size:14px;color:var(--min-main);letter-spacing:3px;text-transform:uppercase;font-weight:bold;margin-bottom:10px;}
.min-head h2{font-size:36px;color:#333;font-weight:bold;letter-spacing:2px;}
.min-head h2 span{color:var(--min-main);}
.min-head-light h2{color:#fff;}
.min-head-light .min-label{color:rgba(255,255,255,.8);}
.min-center{text-align:center;margin-top:30px;}
.min-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 28px;font-size:14px;font-weight:500;transition:all .3s;border-radius:2px;}
.min-btn svg{width:18px;height:18px;fill:currentColor;}
.min-btn-primary{background:var(--min-main);color:#fff;border:1px solid var(--min-main);}
.min-btn-primary:hover{background:#333333;border-color:#333333;color:#fff;}
.min-btn-outline{background:transparent;color:#666;border:1px solid #ccc;}
.min-btn-outline:hover{background:var(--min-main);border-color:var(--min-main);color:#fff;}

/* 关于我们 */
.min-about{background:#fff;}
.min-about-grid{display:flex;align-items:center;gap:40px;}
.min-about-text{flex:1;}
.min-about-text .min-label{display:inline-block;font-size:14px;color:var(--min-main);letter-spacing:3px;text-transform:uppercase;font-weight:bold;margin-bottom:10px;}
.min-about-text h2{font-size:32px;color:#333;font-weight:bold;margin-bottom:20px;}
.min-about-text h2 span{color:var(--min-main);margin:0 6px;}
.min-about-text p{font-size:14px;color:#666;line-height:2;margin-bottom:24px;text-indent:2em;}
.min-about-data{display:flex;gap:40px;margin-bottom:30px;}
.min-data-item strong{display:block;font-size:36px;color:var(--min-main);font-weight:bold;}
.min-data-item span{font-size:14px;color:#999;}
.min-about-img{flex:0 0 500px;}
.min-about-img img{width:100%;border-radius:2px;}

/* 核心优势 */
.min-adv-sec{background:var(--min-light);}
.min-adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.min-adv-card{text-align:center;padding:36px 20px;background:#fff;border:1px solid transparent;transition:all .3s;}
.min-adv-card:hover{border-color:var(--min-main);box-shadow:0 6px 24px rgba(var(--min-main-rgb),.12);transform:translateY(-4px);}
.min-adv-icon{width:80px;height:80px;margin:0 auto 20px;border-radius:50%;background:#f7f7f7;display:flex;align-items:center;justify-content:center;transition:all .3s;}
.min-adv-card:hover .min-adv-icon{background:var(--min-main);}
.min-adv-icon svg{width:40px;height:40px;fill:var(--min-main);transition:fill .3s;}
.min-adv-card:hover .min-adv-icon svg{fill:#fff;}
.min-adv-card h3{font-size:18px;color:#333;font-weight:bold;margin-bottom:12px;}
.min-adv-card p{font-size:14px;color:#999;line-height:1.8;}

/* 产品中心 */
.min-prod-sec{background:#fff;}
.min-type-bar{text-align:center;margin-bottom:30px;}
.min-type-bar .min-type-item{display:inline-block;padding:8px 22px;margin:0 6px;border:1px solid var(--min-border);color:#666;font-size:14px;transition:all .3s;}
.min-type-bar .min-type-item:hover{border-color:var(--min-main);color:var(--min-main);}
.min-type-bar .min-type-on{background:var(--min-main);border-color:var(--min-main);color:#fff;}
.min-prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.min-prod-card{display:block;background:#fff;border:1px solid var(--min-border);overflow:hidden;transition:all .3s;}
.min-prod-card:hover{border-color:var(--min-main);box-shadow:0 4px 16px rgba(var(--min-main-rgb),.15);}
.min-prod-img{overflow:hidden;}
.min-prod-img img{width:100%;height:auto;display:block;transition:transform .4s;}
.min-prod-card:hover .min-prod-img img{transform:scale(1.08);}
.min-prod-info{padding:14px 10px;text-align:center;border-top:1px solid var(--min-border);}
.min-prod-name{display:block;font-size:14px;color:#333;margin-bottom:6px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.min-prod-card:hover .min-prod-name{color:var(--min-main);}
.min-prod-link{font-size:13px;color:#999;}
.min-prod-card:hover .min-prod-link{color:var(--min-main);}

/* 工程案例 */
.min-case-sec{background:#1a1a1a;color:#fff;}
.min-case-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.min-case-card{display:block;position:relative;overflow:hidden;}
.min-case-card img{width:100%;height:210px;object-fit:cover;transition:transform .4s;}
.min-case-card:hover img{transform:scale(1.06);}
.min-case-overlay{position:absolute;bottom:0;left:0;right:0;background:linear-gradient(transparent,rgba(var(--min-main-rgb),.9));padding:15px;text-align:center;}
.min-case-name{display:block;color:#fff;font-size:14px;font-weight:500;}

/* 企业动态 */
.min-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.min-news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--min-border);overflow:hidden;transition:all .3s;}
.min-news-card:hover{border-color:var(--min-main);box-shadow:0 4px 16px rgba(var(--min-main-rgb),.1);}
.min-news-img{overflow:hidden;}
.min-news-img img{width:100%;height:200px;object-fit:cover;transition:transform .4s;}
.min-news-card:hover .min-news-img img{transform:scale(1.06);}
.min-news-body{padding:16px;}
.min-news-date{font-size:13px;color:#999;margin-bottom:8px;}
.min-news-body h3{font-size:16px;color:#333;font-weight:500;margin-bottom:8px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.min-news-body p{font-size:13px;color:#999;line-height:1.6;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;}

/* 联系我们 */
.min-contact-sec{background:var(--min-light);}
.min-contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
.min-contact-info .min-label,.min-contact-msg .min-label{display:inline-block;font-size:14px;color:var(--min-main);letter-spacing:3px;text-transform:uppercase;font-weight:bold;margin-bottom:10px;}
.min-contact-info h2,.min-contact-msg h2{font-size:28px;color:#333;font-weight:bold;margin-bottom:20px;}
.min-contact-list li{padding:8px 0;border-bottom:1px dashed var(--min-border);font-size:14px;color:#666;}
.min-contact-list li b{color:#333;display:inline-block;width:90px;}
.min-contact-msg p{font-size:14px;color:#666;line-height:1.8;margin-bottom:20px;}

/* ============ 响应式补充 ============ */
@media screen and (max-width:1400px){
  .min-about-grid{flex-direction:column;}
  .min-about-img{flex:none;width:100%;}
  .min-adv-grid{grid-template-columns:repeat(2,1fr);}
  .min-prod-grid{grid-template-columns:repeat(3,1fr);}
  .min-case-grid{grid-template-columns:repeat(3,1fr);}
  .min-news-grid{grid-template-columns:repeat(2,1fr);}
  .min-contact-grid{grid-template-columns:1fr;}
}
@media screen and (max-width:768px){
  .min-sec{padding:36px 0;}
  .min-head h2{font-size:26px;}
  .min-about-text h2{font-size:22px;}
  .min-about-data{flex-wrap:wrap;gap:20px;}
  .min-data-item strong{font-size:28px;}
  .min-adv-grid{grid-template-columns:1fr;gap:15px;}
  .min-adv-card{padding:24px 16px;}
  .min-prod-grid{grid-template-columns:repeat(2,1fr);gap:12px;}
  .min-case-grid{grid-template-columns:repeat(2,1fr);gap:10px;}
  .min-case-card img{height:140px;}
  .min-news-grid{grid-template-columns:1fr;gap:15px;}
  .min-news-img img{height:160px;}
  .min-type-wrap{position:relative;margin-bottom:24px;display:flex;align-items:center;gap:4px;}
   .min-type-wrap::after{display:none;}
   .min-type-end::after{display:none;}
   .min-type-prev,.min-type-next{flex:none;width:24px;height:24px;border-radius:50%;border:1px solid #e0e0e0;background:#fff;color:#999;display:flex;align-items:center;justify-content:center;cursor:pointer;padding:0;transition:all .2s;}
   .min-type-prev svg,.min-type-next svg{width:16px;height:16px;fill:currentColor;}
   .min-type-prev:active,.min-type-next:active{background:var(--min-main);border-color:var(--min-main);color:#fff;}
   .min-type-bar{flex:1;min-width:0;text-align:left;overflow-x:auto;overflow-y:hidden;white-space:nowrap;-webkit-overflow-scrolling:touch;padding:0 4px;scrollbar-width:none;}
  .min-type-bar::-webkit-scrollbar{display:none;}
  .min-type-bar .min-type-item{display:inline-block;padding:8px 18px;margin:0 6px 8px 0;border:1px solid #e0e0e0;border-radius:24px;color:#666;font-size:13px;background:#fff;transition:all .3s;white-space:nowrap;flex:none;}
  .min-type-bar .min-type-item:hover{border-color:var(--min-main);color:var(--min-main);}
  .min-type-bar .min-type-on{background:var(--min-main);border-color:var(--min-main);color:#fff;box-shadow:0 2px 8px rgba(var(--min-main-rgb),.3);}
}

/* ============ 响应式: 平板 ============ */
@media screen and (max-width:1400px){
  .m{width:100%;padding:0 20px;}
  .min-pro-list{grid-template-columns:repeat(3,1fr);}
  .min-adv-list{grid-template-columns:repeat(2,1fr);}
  .min-case-big{flex:none;width:100%;margin-bottom:20px;}
  .min-case-small{grid-template-columns:repeat(3,1fr);}
  .min-about-wrap{flex-direction:column;}
  .min-about-img{flex:none;width:100%;}
  .min-news-big{flex:none;width:100%;margin-bottom:20px;}
  .min-news-list{flex:none;width:100%;}
  .min-foot-grid{grid-template-columns:repeat(2,1fr);}
}

/* ============ 响应式: 手机 ============ */
@media screen and (max-width:768px){
  body{font-size:13px;margin:0;padding:0;}
  .m{width:100%;padding:0 15px;}
  
  /* 顶部栏隐藏 */
  .top,.min-hide-mobile,.min-topbar,#destoon-card,#destoon-qrcode{display:none !important;height:0 !important;overflow:hidden !important;margin:0 !important;padding:0 !important;line-height:0 !important;}
  
  /* 头部隐藏，只保留导航栏 */
  .min-header{display:none !important;height:0;overflow:hidden;margin:0;padding:0;}
  
  /* 导航栏固定顶部 */
  .min-nav-wrap{position:sticky;top:0;z-index:1001;background:#fff;border-bottom:2px solid var(--min-main);box-shadow:0 2px 8px rgba(0,0,0,.06);}
  .min-nav-wrap .m{height:80px;justify-content:space-between;}
  .min-nav-top{flex:1;justify-content:space-between;}
  .min-nav-top .min-logo img{height:65px;}
  .min-tel{margin-left:auto;}
  .min-tel span{display:none;}
  .min-menu-toggle{display:flex;order:1;margin-left:12px;flex-shrink:0;z-index:1002;position:relative;}
  .min-nav{display:none;position:fixed;top:80px;left:0;right:0;bottom:0;background:#fff;z-index:999;overflow-y:auto;padding:15px;}
  .min-nav.open{display:block;}
  .min-nav ul{flex-direction:column;}
  .min-nav li a{line-height:48px;padding:0 20px;font-size:16px;border-bottom:1px solid #f0f0f0;border-bottom-width:1px;border-bottom-style:solid;border-bottom-color:#f0f0f0;}
  .min-nav li .subnav{position:static;display:block;box-shadow:none;background:#f8f8f8;}
  .min-nav li .subnav a{padding-left:40px;line-height:40px;}
  
  /* Banner */
  .min-banner .list{height:240px;}
  .min-banner .arrow{display:none;}
  
  /* 搜索栏 */
  .min-search .hot{flex-direction:column;gap:15px;}
  .min-search .left{flex-wrap:wrap;justify-content:center;}
  .min-search .right input.input{width:180px;}
  
  /* 通用标题 */
  .min-section{padding:36px 0;}
  .min-section-title h3{font-size:26px;}
  .min-section-title p{font-size:14px;}
  
  /* 产品中心 */
  .min-pro-list{grid-template-columns:repeat(2,1fr);gap:12px;}
  .min-pro-menu ul{gap:8px;}
  .min-pro-menu li a{padding:6px 14px;font-size:13px;}
  
  /* CTA Banner */
  .min-cta-banner{padding:30px 15px;text-align:center;}
  .min-cta-banner .zixun{justify-content:center;margin-top:20px;}
  .min-cta-banner .txt h3{font-size:22px;}
  
  /* 工程案例 */
  .min-case-wrap{flex-direction:column;}
  .min-case-big .item img{height:200px;}
  .min-case-small{grid-template-columns:repeat(2,1fr);gap:10px;}
  .min-case-small .item img{height:120px;}
  
  /* 四大优势 */
  .min-adv-list{grid-template-columns:1fr;gap:15px;}
  .min-adv-item{padding:24px 16px;}
  
  /* 关于我们 */
  .min-about-text .stit{font-size:18px;}
  .min-about-text .desc{font-size:13px;line-height:1.8;}
  
  /* 新闻中心 */
  .min-news-wrap{flex-direction:column;}
  .min-news-big .item img{height:180px;}
  .min-news-list .item{padding:12px 0;}
  .min-news-list .txt h3{font-size:15px;}
  
  /* 页脚 */
  .min-foot-cta-in{flex-direction:column;gap:15px;text-align:center;}
  .min-foot-grid{grid-template-columns:1fr 1fr;gap:26px 30px;padding:30px 0;}
  .min-foot-brand{grid-column:1 / -1;}
  .min-foot-col:last-child{grid-column:1 / -1;}
  .min-foot-bottom{font-size:12px;}
  
  /* 侧边浮动 */
  .min-side-tool{right:10px;bottom:10%;}
  .min-side-tool a{width:40px;height:40px;font-size:10px;}
}

/* ============ 极简留白：大留白 + 超大排版 ============ */
.min-section{padding:100px 0;}
.min-section-title{margin-bottom:60px;}
.min-section-title h3{font-size:44px;font-weight:200;letter-spacing:8px;color:#111;}
.min-section-title h3 span{color:#111;font-weight:600;}
.min-section-title p{font-size:12px;letter-spacing:6px;color:#aaa;text-transform:uppercase;}

/* ============ 极简留白：细线卡片（无阴影无圆角） ============ */
.min-prod-card,.min-adv-card,.min-pro-item,.min-news-card{background:#fff;border:1px solid #eee;box-shadow:none !important;border-radius:0;}
.min-prod-card:hover,.min-adv-card:hover,.min-pro-item:hover,.min-news-card:hover{border-color:#111;box-shadow:none !important;transform:none;}

/* ============ 极简留白：极简方角按钮 ============ */
.min-btn{border-radius:0;padding:14px 44px;font-size:13px;letter-spacing:3px;transition:all .25s;}
.min-btn-primary{background:#111;color:#fff;border:1px solid #111;}
.min-btn-primary:hover{background:#fff;color:#111;border:1px solid #111;}
.min-btn-outline{background:transparent;color:#111;border:1px solid #111;}
.min-btn-outline:hover{background:#111;color:#fff;border:1px solid #111;}

/* ============ 极简留白：标题细线装饰 ============ */
.min-section-title h3{position:relative;padding-bottom:22px;}
.min-section-title h3::after{content:'';position:absolute;left:50%;bottom:0;transform:translateX(-50%);width:40px;height:1px;background:#111;}

/* ============ 中间区域背景全屏（.m.main-full 撑满） ============ */
.m.main-full{width:100%;max-width:100%;padding:0;margin:0;}