@charset "utf-8";
/* ==========================================================================
   TP8企业CMS 前台样式  -  企业蓝风格 / 响应式
   主色 #1e3c72(深蓝) #2a5298(中蓝)  辅色 #f39c12(橙)
   ========================================================================== */

:root{
    --c-primary:#1e3c72;
    --c-primary2:#2a5298;
    --c-accent:#f39c12;
    --c-text:#333;
    --c-text-light:#666;
    --c-text-mute:#999;
    --c-border:#e8eaed;
    --c-bg:#f5f7fa;
    --c-bg-dark:#0e1c3a;
    --w:1200px;
    --radius:6px;
    --shadow:0 2px 12px rgba(30,60,114,.08);
    --shadow-hover:0 8px 24px rgba(30,60,114,.16);
}

/* reset */
*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{
    font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;
    font-size:14px;color:var(--c-text);background:#fff;line-height:1.7;
    -webkit-font-smoothing:antialiased;
}
a{color:var(--c-text);text-decoration:none;transition:color .2s}
a:hover{color:var(--c-primary2)}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
input,button,textarea,select{font-family:inherit;font-size:inherit;outline:none}
button{cursor:pointer;border:0;background:none}

/* layout */
.container{width:var(--w);max-width:96%;margin:0 auto}
.clearfix::after{content:"";display:block;clear:both}
.fl{float:left}.fr{float:right}
.text-c{text-align:center}.text-r{text-align:right}
.hide{display:none!important}
.mt20{margin-top:20px}.mt30{margin-top:30px}.mt40{margin-top:40px}

/* ====================== 顶部条 ====================== */
.topbar{background:var(--c-bg-dark);color:#bcc6db;font-size:12px;height:36px;line-height:36px}
.topbar a{color:#bcc6db}
.topbar a:hover{color:#fff}
.topbar .container{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.topbar .tb-info span{margin-right:18px}
.topbar .tb-info i{color:var(--c-accent);margin-right:5px}
.topbar .tb-links a{margin-left:14px}

/* ====================== 头部 / 导航 ====================== */
.header{background:#fff;box-shadow:0 1px 0 rgba(0,0,0,.04);position:relative;z-index:50}
.header .container{display:flex;align-items:center;justify-content:space-between;height:88px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo .logo-img{height:48px;width:auto}
.logo .logo-txt{font-size:24px;font-weight:700;color:var(--c-primary);letter-spacing:1px}
.logo .logo-txt small{display:block;font-size:11px;color:var(--c-text-mute);font-weight:400;letter-spacing:2px;margin-top:2px}
.logo .logo-fallback{
    width:48px;height:48px;border-radius:8px;
    background:linear-gradient(135deg,var(--c-primary),var(--c-primary2));
    color:#fff;font-size:22px;font-weight:700;
    display:flex;align-items:center;justify-content:center;
}

/* 主导航 */
.nav{display:flex;align-items:center;height:88px}
.nav>li{position:relative}
.nav>li>a{
    display:block;height:88px;line-height:88px;padding:0 22px;
    font-size:16px;color:var(--c-text);position:relative;
}
.nav>li>a::after{
    content:"";position:absolute;left:50%;bottom:24px;width:0;height:3px;
    background:var(--c-accent);transition:all .25s;transform:translateX(-50%);
}
.nav>li:hover>a,.nav>li.active>a{color:var(--c-primary2)}
.nav>li:hover>a::after,.nav>li.active>a::after{width:24px}
/* 下拉子菜单 */
.nav .sub{
    position:absolute;left:50%;top:88px;transform:translateX(-50%) translateY(8px);
    background:#fff;min-width:170px;padding:8px 0;border-radius:0 0 var(--radius) var(--radius);
    box-shadow:var(--shadow-hover);opacity:0;visibility:hidden;transition:all .25s;z-index:60;
}
.nav>li:hover .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav .sub li a{display:block;padding:10px 22px;font-size:14px;white-space:nowrap}
.nav .sub li a:hover{background:var(--c-bg);color:var(--c-primary2);padding-left:28px}

/* 移动端菜单按钮 */
.nav-toggle{display:none;width:40px;height:40px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:26px;height:2px;background:var(--c-primary);transition:all .3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ====================== 幻灯片 ====================== */
.banner{position:relative;overflow:hidden;background:linear-gradient(135deg,#1e3c72,#2a5298)}
.banner.slides{height:480px}
.slides-track{position:relative;height:100%}
.slides-track .slide{display:none;position:absolute;inset:0}
.slides-track .slide.active{display:block}
.slide a{display:block;height:100%;width:100%}
.slide .slide-img{
    width:100%;height:480px;background-size:cover;background-position:center;
    background-repeat:no-repeat;
}
/* 无图渐变兜底 */
.slide .slide-ph{
    width:100%;height:480px;
    background:linear-gradient(135deg,#1e3c72 0%,#2a5298 50%,#3a6db8 100%);
    display:flex;align-items:center;justify-content:center;
}
.slide .slide-ph .ph-inner{text-align:center;color:#fff}
.slide .slide-ph .ph-inner h3{font-size:42px;font-weight:300;letter-spacing:4px;margin-bottom:10px}
.slide .slide-ph .ph-inner p{font-size:16px;opacity:.8;letter-spacing:2px}
.slide-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:5}
.slide-dots button{width:36px;height:4px;background:rgba(255,255,255,.4);border-radius:2px;transition:all .3s}
.slide-dots button.active{background:var(--c-accent);width:48px}
.slide-arrow{position:absolute;top:50%;transform:translateY(-50%);width:48px;height:48px;
    background:rgba(0,0,0,.25);color:#fff;border-radius:50%;font-size:24px;z-index:5;
    display:flex;align-items:center;justify-content:center;transition:background .2s}
.slide-arrow:hover{background:rgba(0,0,0,.45)}
.slide-arrow.prev{left:20px}
.slide-arrow.next{right:20px}

/* 内页小 banner */
.page-banner{height:260px;background:linear-gradient(135deg,#1e3c72,#2a5298);
    display:flex;align-items:center;justify-content:center;color:#fff;text-align:center;position:relative}
.page-banner::after{content:"";position:absolute;inset:0;background:
    radial-gradient(circle at 20% 30%,rgba(255,255,255,.08),transparent 40%),
    radial-gradient(circle at 80% 70%,rgba(243,156,18,.12),transparent 40%)}
.page-banner h2{font-size:34px;font-weight:400;letter-spacing:3px;position:relative;z-index:1}
.page-banner p{font-size:14px;opacity:.8;letter-spacing:2px;margin-top:8px;position:relative;z-index:1}

/* 面包屑 */
.breadcrumb{background:#fff;border-bottom:1px solid var(--c-border);font-size:13px;color:var(--c-text-mute)}
.breadcrumb .container{display:flex;align-items:center;height:46px;flex-wrap:wrap;gap:6px}
.breadcrumb a{color:var(--c-text-mute)}
.breadcrumb a:hover{color:var(--c-primary2)}
.breadcrumb .sep{color:#ccc}
.breadcrumb .cur{color:var(--c-text-light)}

/* ====================== 通用板块 ====================== */
.section{padding:60px 0}
.section.bg-gray{background:var(--c-bg)}
.section-title{text-align:center;margin-bottom:40px}
.section-title h2{font-size:30px;color:var(--c-primary);font-weight:400;letter-spacing:2px}
.section-title h2 span{color:var(--c-accent)}
.section-title .sub{font-size:13px;color:var(--c-text-mute);letter-spacing:3px;text-transform:uppercase;margin-top:6px}
.section-title .bar{width:50px;height:3px;background:var(--c-accent);margin:14px auto 0;border-radius:2px}

/* ====================== 首页 关于我们 ====================== */
.about-row{display:flex;align-items:center;gap:40px}
.about-row .about-pic{flex:0 0 45%;height:300px;border-radius:var(--radius);overflow:hidden;background:linear-gradient(135deg,#1e3c72,#2a5298)}
.about-row .about-pic img{width:100%;height:100%;object-fit:cover}
.about-row .about-pic .ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:16px}
.about-row .about-text{flex:1}
.about-row .about-text h3{font-size:24px;color:var(--c-primary);margin-bottom:6px;font-weight:400}
.about-row .about-text .en{color:var(--c-text-mute);font-size:13px;letter-spacing:2px;margin-bottom:18px}
.about-row .about-text .desc{color:var(--c-text-light);line-height:1.9;margin-bottom:20px;text-indent:2em}
.about-row .about-text .stats{display:flex;gap:36px;margin:24px 0}
.about-row .about-text .stats .n{font-size:34px;color:var(--c-accent);font-weight:700}
.about-row .about-text .stats .l{font-size:13px;color:var(--c-text-mute)}
.about-row .about-text .btn-more{display:inline-block;padding:10px 28px;border:1px solid var(--c-primary2);color:var(--c-primary2);border-radius:30px;font-size:13px;transition:all .25s}
.about-row .about-text .btn-more:hover{background:var(--c-primary2);color:#fff}

/* ====================== 产品分类卡片 ====================== */
.cat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.cat-card{display:block;text-align:center;background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s;padding:20px 10px}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.cat-card .ico{width:64px;height:64px;margin:0 auto 12px;border-radius:50%;
    background:linear-gradient(135deg,var(--c-primary),var(--c-primary2));
    display:flex;align-items:center;justify-content:center;color:#fff;font-size:28px;transition:all .3s}
.cat-card:hover .ico{background:linear-gradient(135deg,var(--c-accent),#e67e22);transform:rotate(360deg)}
.cat-card .nm{font-size:15px;color:var(--c-text);font-weight:500}
.cat-card:hover .nm{color:var(--c-primary2)}

/* ====================== 产品列表 ====================== */
.product-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.product-grid.col3{grid-template-columns:repeat(3,1fr)}
.product-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s}
.product-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.product-card .img{height:210px;overflow:hidden;position:relative;background:var(--c-bg)}
.product-card .img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.product-card:hover .img img{transform:scale(1.08)}
/* 无图占位 */
.product-card .img .ph{
    width:100%;height:100%;display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#eef2f9,#dde5f2);color:#9fb0cc;font-size:14px;
}
.product-card .img .ph svg{width:48px;height:48px;opacity:.5}
.product-card .body{padding:14px 16px 18px}
.product-card .body h3{font-size:15px;color:var(--c-text);font-weight:500;text-align:center;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s}
.product-card:hover .body h3{color:var(--c-primary2)}
.product-card .body .intro{font-size:12px;color:var(--c-text-mute);margin-top:6px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;text-align:center}

/* ====================== 新闻列表 ====================== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:all .3s;display:flex;flex-direction:column}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.news-card .date{flex-shrink:0;width:78px;background:linear-gradient(135deg,var(--c-primary),var(--c-primary2));color:#fff;text-align:center;padding:16px 0}
.news-card .date .d{font-size:28px;font-weight:700;line-height:1}
.news-card .date .m{font-size:12px;opacity:.85;margin-top:4px}
.news-card .body{flex:1;padding:14px 16px;display:flex;flex-direction:column}
.news-card .body h3{font-size:16px;color:var(--c-text);font-weight:500;margin-bottom:8px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s}
.news-card:hover .body h3{color:var(--c-primary2)}
.news-card .body .desc{font-size:13px;color:var(--c-text-mute);line-height:1.7;flex:1;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card .body .more{font-size:12px;color:var(--c-primary2);margin-top:10px}

/* 新闻列表（列表样式，用于列表页文章） */
.news-list .news-row{display:flex;gap:20px;padding:22px 0;border-bottom:1px dashed var(--c-border);align-items:center}
.news-list .news-row:last-child{border-bottom:0}
.news-list .news-row .thumb{flex-shrink:0;width:200px;height:130px;border-radius:6px;overflow:hidden;background:var(--c-bg)}
.news-list .news-row .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.news-list .news-row:hover .thumb img{transform:scale(1.06)}
.news-list .news-row .thumb .ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2f9,#dde5f2);color:#9fb0cc}
.news-list .news-row .info{flex:1;min-width:0}
.news-list .news-row .info h3{font-size:17px;color:var(--c-text);margin-bottom:8px;
    white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .2s}
.news-list .news-row:hover .info h3{color:var(--c-primary2)}
.news-list .news-row .info .desc{font-size:13px;color:var(--c-text-mute);line-height:1.8;margin-bottom:10px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-list .news-row .info .meta{font-size:12px;color:var(--c-text-mute)}
.news-list .news-row .info .meta span{margin-right:18px}
.news-list .news-row .info .meta i{margin-right:5px;color:var(--c-accent)}

/* ====================== 优势 / 数字板块 ====================== */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.feature-item .ico{width:80px;height:80px;margin:0 auto 18px;border-radius:50%;
    background:#fff;box-shadow:var(--shadow);display:flex;align-items:center;justify-content:center;
    font-size:34px;color:var(--c-primary2);transition:all .3s}
.feature-item:hover .ico{background:var(--c-primary2);color:#fff;transform:translateY(-6px)}
.feature-item h4{font-size:18px;color:#fff;font-weight:400;margin-bottom:8px}
.feature-item p{color:rgba(255,255,255,.7);font-size:13px;line-height:1.8}

/* ====================== 列表/详情 页布局 ====================== */
.main-wrap{padding:40px 0;background:#fff}
.main-wrap.bg-gray{background:var(--c-bg)}
.main-flex{display:flex;gap:30px;align-items:flex-start}
.sidebar{flex:0 0 240px;position:sticky;top:20px}
.sidebar .sb-title{background:linear-gradient(135deg,var(--c-primary),var(--c-primary2));color:#fff;
    padding:18px 20px;font-size:18px;border-radius:var(--radius) var(--radius) 0 0}
.sidebar .sb-list{background:#fff;border:1px solid var(--c-border);border-top:0;border-radius:0 0 var(--radius) var(--radius);overflow:hidden}
.sidebar .sb-list a{display:block;padding:13px 20px;border-bottom:1px solid #f2f4f7;font-size:14px;color:var(--c-text-light);position:relative;transition:all .2s}
.sidebar .sb-list a:last-child{border-bottom:0}
.sidebar .sb-list a::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent);transform:scaleY(0);transition:transform .2s}
.sidebar .sb-list a:hover,.sidebar .sb-list a.active{color:var(--c-primary2);background:#f8faff;padding-left:26px}
.sidebar .sb-list a.active::before,.sidebar .sb-list a:hover::before{transform:scaleY(1)}
/* 侧边联系卡 */
.sidebar .sb-contact{background:#fff;border:1px solid var(--c-border);border-radius:var(--radius);padding:22px 20px;margin-top:20px}
.sidebar .sb-contact h4{font-size:16px;color:var(--c-primary);margin-bottom:14px;padding-bottom:12px;border-bottom:2px solid var(--c-bg)}
.sidebar .sb-contact p{font-size:13px;color:var(--c-text-light);line-height:2;margin-bottom:6px}
.sidebar .sb-contact p strong{color:var(--c-accent);font-size:20px;display:block;margin-top:6px}
.sidebar .sb-contact p i{color:var(--c-primary2);margin-right:6px}

.content-area{flex:1;min-width:0}

/* 列表页产品网格（侧边栏布局下） */
.list-product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* 分页（兼容 ThinkPHP 默认 ul.pagination>li>a/span 结构） */
.pagination{margin-top:36px;text-align:center}
.pagination > ul, ul.pagination{display:inline-flex;flex-wrap:wrap;gap:5px;list-style:none;padding:0;margin:0;justify-content:center}
.pagination li{display:inline-block}
.pagination li a,.pagination li span,.pagination > a,.pagination > span{
    display:inline-block;min-width:38px;height:38px;line-height:38px;padding:0 10px;
    border:1px solid var(--c-border);border-radius:4px;color:var(--c-text-light);
    background:#fff;transition:all .2s;white-space:nowrap
}
.pagination li a:hover,.pagination > a:hover{border-color:var(--c-primary2);color:var(--c-primary2)}
.pagination li.active span,.pagination li.active a,.pagination .current{background:var(--c-primary2);border-color:var(--c-primary2);color:#fff}
.pagination li.disabled span,.pagination li.disabled a,.pagination .disabled{color:#ccc;background:#f9f9f9;cursor:default}

/* ====================== 详情页 ====================== */
.article-head{text-align:center;padding:24px 0 26px;border-bottom:1px solid var(--c-border);margin-bottom:26px}
.article-head h1{font-size:26px;color:var(--c-primary);font-weight:500;line-height:1.5;margin-bottom:14px}
.article-head .meta{font-size:13px;color:var(--c-text-mute)}
.article-head .meta span{margin:0 12px}
.article-head .meta i{margin-right:5px;color:var(--c-accent)}
.article-content{font-size:15px;line-height:2;color:#444;min-height:200px}
.article-content p{margin-bottom:18px;text-indent:2em}
.article-content img{max-width:100%;height:auto;border-radius:4px;margin:14px auto;display:block}
.article-content h1,.article-content h2,.article-content h3{color:var(--c-primary);margin:22px 0 12px;text-indent:0}
.article-content ul,.article-content ol{margin:14px 0 14px 2em;text-indent:0}
.article-content table{width:100%;border-collapse:collapse;margin:16px 0;text-indent:0}
.article-content table td,.article-content table th{border:1px solid var(--c-border);padding:8px 12px}
.article-content a{color:var(--c-primary2);text-decoration:underline}

/* 上一篇/下一篇 */
.prev-next{margin-top:36px;padding:18px 0;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);font-size:14px}
.prev-next .row{display:flex;gap:10px;margin:6px 0}
.prev-next .row .lbl{color:var(--c-text-mute);flex-shrink:0}
.prev-next .row a{color:var(--c-text-light)}
.prev-next .row a:hover{color:var(--c-primary2)}

/* 相关推荐 */
.related-box{margin-top:36px}
.related-box h3{font-size:18px;color:var(--c-primary);margin-bottom:18px;padding-left:12px;border-left:4px solid var(--c-accent)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}

/* ====================== 产品详情 ====================== */
.product-detail-top{display:flex;gap:34px;margin-bottom:34px}
.product-gallery{flex:0 0 420px}
.product-gallery .main-img{width:100%;height:420px;border:1px solid var(--c-border);border-radius:var(--radius);overflow:hidden;background:var(--c-bg);display:flex;align-items:center;justify-content:center}
.product-gallery .main-img img{width:100%;height:100%;object-fit:cover}
.product-gallery .main-img .ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#eef2f9,#dde5f2);color:#9fb0cc;font-size:14px}
.product-gallery .thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.product-gallery .thumbs img{width:74px;height:74px;object-fit:cover;border:2px solid transparent;border-radius:4px;cursor:pointer;transition:border-color .2s}
.product-gallery .thumbs img.active,.product-gallery .thumbs img:hover{border-color:var(--c-accent)}
.product-info{flex:1;min-width:0}
.product-info h1{font-size:26px;color:var(--c-text);font-weight:500;line-height:1.4;margin-bottom:14px}
.product-info .intro{font-size:14px;color:var(--c-text-mute);line-height:1.9;margin-bottom:18px;padding-bottom:18px;border-bottom:1px dashed var(--c-border)}
.product-info .params{margin-bottom:22px}
.product-info .params .row{display:flex;padding:9px 0;font-size:14px;border-bottom:1px solid #f5f6f8}
.product-info .params .row .k{flex:0 0 100px;color:var(--c-text-mute)}
.product-info .params .row .v{color:var(--c-text)}
.product-info .price-row{display:flex;align-items:baseline;gap:8px;margin-bottom:20px}
.product-info .price-row .lbl{font-size:14px;color:var(--c-text-mute)}
.product-info .price-row .val{font-size:28px;color:var(--c-accent);font-weight:700}
.product-info .price-row .unit{font-size:14px;color:var(--c-text-mute)}
.product-info .actions{display:flex;gap:14px}
.product-info .actions .btn{display:inline-block;padding:12px 34px;border-radius:30px;font-size:15px;transition:all .25s}
.product-info .actions .btn-primary{background:linear-gradient(135deg,var(--c-accent),#e67e22);color:#fff}
.product-info .actions .btn-primary:hover{opacity:.9;transform:translateY(-2px)}
.product-info .actions .btn-outline{border:1px solid var(--c-primary2);color:var(--c-primary2)}
.product-info .actions .btn-outline:hover{background:var(--c-primary2);color:#fff}

/* 单页内容 */
.single-content{background:#fff;border-radius:var(--radius);padding:36px 40px;box-shadow:var(--shadow)}

/* 空状态 */
.empty{text-align:center;padding:80px 20px;color:var(--c-text-mute)}
.empty .ico{font-size:60px;margin-bottom:16px;opacity:.4}
.empty p{font-size:15px}

/* ====================== 底部 ====================== */
.footer{background:var(--c-bg-dark);color:#9fb0cc;padding:50px 0 0;font-size:13px}
.footer a{color:#9fb0cc}
.footer a:hover{color:#fff}
.footer-top{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer h4{color:#fff;font-size:16px;font-weight:400;margin-bottom:18px}
.footer .f-about p{line-height:1.9;margin-bottom:10px}
.footer .f-links li,.footer .f-contact li{margin-bottom:10px}
.footer .f-contact i{color:var(--c-accent);margin-right:8px}
.footer .f-contact .tel{color:var(--c-accent);font-size:22px;font-weight:700;display:block;margin:6px 0}
.footer-bottom{text-align:center;padding:18px 0;color:#7a8aaa}
.footer-bottom a{margin:0 8px}
.footer-bottom .icp{margin-top:6px;font-size:12px;opacity:.7}

/* 通用按钮 */
.btn-more{display:inline-block;padding:10px 32px;border:1px solid var(--c-primary2);color:var(--c-primary2);border-radius:30px;font-size:13px;transition:all .25s}
.btn-more:hover{background:var(--c-primary2);color:#fff}

/* 回到顶部 */
.back-top{position:fixed;right:24px;bottom:30px;width:44px;height:44px;background:var(--c-primary2);
    color:#fff;border-radius:6px;display:flex;align-items:center;justify-content:center;font-size:22px;
    opacity:0;visibility:hidden;transition:all .3s;z-index:80;box-shadow:0 4px 14px rgba(30,60,114,.4)}
.back-top.show{opacity:1;visibility:visible}
.back-top:hover{background:var(--c-primary)}

/* ====================== 响应式 ====================== */
@media (max-width:1024px){
    :root{--w:100%}
    .container{padding:0 18px}
    .cat-grid{grid-template-columns:repeat(3,1fr)}
    .product-grid{grid-template-columns:repeat(3,1fr)}
    .news-grid{grid-template-columns:repeat(2,1fr)}
    .feature-grid{grid-template-columns:repeat(2,1fr)}
    .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
    /* 移动端导航 */
    .nav-toggle{display:flex}
    .nav{
        position:fixed;left:0;top:124px;width:100%;height:auto;background:#fff;
        flex-direction:column;align-items:stretch;height:auto;
        max-height:0;overflow:hidden;transition:max-height .35s ease;box-shadow:0 6px 18px rgba(0,0,0,.12);
        z-index:55;
    }
    .nav.open{max-height:600px;overflow-y:auto}
    .nav>li>a{height:48px;line-height:48px;border-bottom:1px solid #f2f4f7;padding:0 22px;font-size:15px}
    .nav>li>a::after{display:none}
    .nav .sub{position:static;transform:none;opacity:1;visibility:visible;box-shadow:none;
        padding:0;background:#f8faff;border-radius:0;display:none}
    .nav>li.open .sub{display:block}
    .nav .sub li a{padding:10px 40px;font-size:14px}
    .header .container{height:70px}
    .logo .logo-txt{font-size:20px}
    .logo .logo-fallback,.logo .logo-img{height:40px;width:40px}
    .topbar{display:none}

    .banner.slides,.slide .slide-img,.slide .slide-ph{height:300px}
    .slide .slide-ph .ph-inner h3{font-size:28px}
    .page-banner{height:180px}
    .page-banner h2{font-size:24px}

    .section{padding:40px 0}
    .section-title h2{font-size:24px}
    .about-row{flex-direction:column;gap:24px}
    .about-row .about-pic{flex:none;width:100%;height:220px}

    .cat-grid{grid-template-columns:repeat(2,1fr);gap:14px}
    .product-grid,.product-grid.col3,.list-product-grid,.related-grid{grid-template-columns:repeat(2,1fr);gap:14px}
    .news-grid{grid-template-columns:1fr}
    .feature-grid{grid-template-columns:repeat(2,1fr);gap:20px}

    /* 侧边栏在移动端隐藏或置顶 */
    .main-flex{flex-direction:column}
    .sidebar{flex:none;width:100%;position:static;display:none}

    .product-detail-top{flex-direction:column;gap:20px}
    .product-gallery{flex:none;width:100%}
    .product-gallery .main-img{height:320px}
    .product-info h1{font-size:22px}

    .news-list .news-row .thumb{width:130px;height:90px}
    .footer-top{grid-template-columns:1fr;gap:26px}
    .single-content{padding:22px 18px}
}
@media (max-width:480px){
    .cat-grid,.product-grid,.product-grid.col3,.list-product-grid,.related-grid{grid-template-columns:1fr}
    .product-card .img{height:180px}
    .news-list .news-row{flex-direction:column;align-items:flex-start}
    .news-list .news-row .thumb{width:100%;height:160px}
    .about-row .about-text .stats{gap:20px}
    .product-gallery .main-img{height:240px}
}