/* =====================================================
   埃姆特科技 官网主样式 (响应式 / 扁平化 / 营销型)
   主色: #0B4DA2  辅色: #1668DC  强调: #FF7A00
   ===================================================== */
:root{
  --blue:#0B4DA2; --blue-l:#1668DC; --blue-d:#08356F;
  --orange:#FF7A00; --orange-d:#E56C00;
  --text:#333; --text-2:#666; --text-3:#999;
  --line:#E8ECF2; --bg:#FFF; --bg-gray:#F5F7FA;
  --shadow:0 6px 24px rgba(11,77,162,.10);
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Arial,sans-serif;color:var(--text);font-size:15px;line-height:1.7;background:var(--bg)}
a{color:inherit;text-decoration:none;transition:.25s}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
table{border-collapse:collapse}
button{font-family:inherit}
.wrap{max-width:1200px;margin:0 auto;padding:0 16px}

/* 按钮 */
.btn{display:inline-block;padding:11px 30px;border-radius:4px;font-size:15px;border:1px solid transparent;cursor:pointer;text-align:center;transition:.25s}
.btn-orange{background:var(--orange);color:#fff}
.btn-orange:hover{background:var(--orange-d)}
.btn-blue{background:var(--blue-l);color:#fff}
.btn-blue:hover{background:var(--blue)}
.btn-ghost{border-color:rgba(255,255,255,.7);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12)}
.btn-line{border-color:var(--blue-l);color:var(--blue-l)}
.btn-line:hover{background:var(--blue-l);color:#fff}
.btn-block{width:100%}

/* 顶部信息条 */
.topbar{background:var(--blue-d);color:rgba(255,255,255,.75);font-size:12.5px;padding:7px 0}
.topbar .wrap{display:flex;justify-content:space-between;gap:12px}
.topbar-r span{margin-left:18px}
.topbar a{color:#fff}

/* 头部导航 */
.header{background:#fff;position:sticky;top:0;z-index:99;box-shadow:0 2px 12px rgba(0,0,0,.06)}
.header-in{display:flex;align-items:center;justify-content:space-between;height:76px;gap:16px}
.logo{display:flex;align-items:center;gap:10px;color:var(--blue)}
.logo-ico{width:42px;height:42px;color:var(--blue)}
.logo-txt{line-height:1.25;display:flex;flex-direction:column}
.logo-txt b{font-size:19px;letter-spacing:1px}
.logo-txt i{font-style:normal;font-size:11px;color:var(--text-3);letter-spacing:2px}
.nav>ul{display:flex}
.nav>ul>li{position:relative}
.nav>ul>li>a{display:block;padding:0 18px;line-height:76px;font-size:16px;font-weight:600}
.nav>ul>li:hover>a,.nav>ul>li.cur>a{color:var(--blue-l)}
.nav>ul>li.has-sub::after{content:"";position:absolute;right:6px;top:36px;border:4px solid transparent;border-top-color:#bbb}
.nav .sub{position:absolute;top:76px;left:50%;transform:translateX(-50%) translateY(8px);background:#fff;min-width:150px;box-shadow:var(--shadow);border-radius:0 0 6px 6px;opacity:0;visibility:hidden;transition:.25s;padding:6px 0}
.nav>ul>li:hover .sub{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.nav .sub a{display:block;padding:9px 18px;font-size:14px;color:var(--text-2);white-space:nowrap}
.nav .sub a:hover{color:var(--blue-l);background:var(--bg-gray)}
.header-tel{display:flex;align-items:center;gap:9px}
.tel-ico{width:34px;height:34px;color:var(--orange);background:#FFF4E8;border-radius:50%;padding:7px}
.header-tel i{display:block;font-style:normal;font-size:12px;color:var(--text-3)}
.header-tel b{font-size:17px;color:var(--blue);letter-spacing:.5px}
.menu-btn{display:none;background:none;border:0;cursor:pointer;padding:8px}
.menu-btn span{display:block;width:24px;height:2.5px;background:var(--blue);margin:5px 0;border-radius:2px;transition:.25s}

/* Banner */
.banner{position:relative;height:600px;overflow:hidden;background:linear-gradient(135deg,#08356F,#1668DC);display:flex;align-items:center}
.banner-media,.banner-media video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.banner-media:empty{display:none}
.banner-item{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity .8s}
.banner-item.active{opacity:1}
.banner-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,53,111,.85) 0%,rgba(8,53,111,.55) 45%,rgba(8,53,111,.15) 100%)}
.banner-slogan{position:relative;z-index:2;color:#fff;padding-top:30px}
.banner-slogan h1{font-size:46px;font-weight:700;letter-spacing:2px;line-height:1.35;text-shadow:0 2px 12px rgba(0,0,0,.3)}
.banner-slogan h1 span{color:var(--orange)}
.banner-slogan p{margin:14px 0 30px;font-size:18px;opacity:.92;letter-spacing:1px}
.banner-acts{display:flex;gap:14px}
.banner-dots{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:10px}
.banner-dots i{width:28px;height:4px;background:rgba(255,255,255,.4);border-radius:2px;cursor:pointer;transition:.25s}
.banner-dots i.on{background:var(--orange)}

/* 数据带 */
.stats{background:#fff;position:relative;z-index:5}
.stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;padding:34px 0}
.stat{text-align:center;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat b{font-size:40px;color:var(--blue);font-weight:700}
.stat b i{font-style:normal;font-size:22px;color:var(--orange)}
.stat span{display:block;color:var(--text-2);font-size:14px;margin-top:2px}

/* 通用版块 */
.sec{padding:64px 0}
.sec-gray{background:var(--bg-gray)}
.sec-dark{background:linear-gradient(135deg,#08356F,#0B4DA2);color:#fff}
.sec-head{text-align:center;margin-bottom:42px}
.sec-head h2{font-size:32px;letter-spacing:2px}
.sec-en{font-size:13px;color:#B9C4D4;letter-spacing:4px;text-transform:uppercase;margin:4px 0 10px}
.sec-dark .sec-en{color:rgba(255,255,255,.45)}
.sec-line{display:inline-block;width:46px;height:3px;background:var(--orange);border-radius:2px}
.sec-desc{color:var(--text-2);margin-top:14px;font-size:15px}
.sec-dark .sec-desc{color:rgba(255,255,255,.75)}
.sec-head-left{text-align:left}
.sec-more{text-align:center;margin-top:36px}

/* 产品分类卡片 */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.cat-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 3px 14px rgba(0,0,0,.06);transition:.3s;display:flex;flex-direction:column}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.cat-img{height:190px;overflow:hidden;background:#EDF2F8}
.cat-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.cat-card:hover .cat-img img{transform:scale(1.06)}
.cat-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.cat-body h3{font-size:19px;color:var(--blue-d)}
.cat-body p{color:var(--text-2);font-size:13.5px;margin:8px 0 14px;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-more{color:var(--orange);font-size:13.5px;font-weight:600}

/* 行业应用 */
.app-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.app-grid-3{grid-template-columns:repeat(3,1fr)}
.app-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 3px 14px rgba(0,0,0,.07);transition:.3s}
.app-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.app-img{position:relative;height:170px;overflow:hidden}
.app-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.app-card:hover .app-img img{transform:scale(1.06)}
.app-play{position:absolute;inset:0;display:flex;align-items:center;justify-content:center}
.app-play i{width:52px;height:52px;background:rgba(255,255,255,.85);border-radius:50%;position:relative;box-shadow:0 4px 16px rgba(0,0,0,.25);transition:.3s}
.app-play i::after{content:"";position:absolute;left:53%;top:50%;transform:translate(-50%,-50%);border:11px solid transparent;border-left:17px solid var(--blue-l);border-right:0}
.app-card:hover .app-play i{background:var(--orange)}
.app-card:hover .app-play i::after{border-left-color:#fff}
.app-body{padding:14px 16px 18px}
.app-body em{font-style:normal;font-size:12px;color:var(--orange);border:1px solid var(--orange);padding:1px 8px;border-radius:3px}
.app-body h3{font-size:15px;margin-top:9px;color:var(--text);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px}
.adv-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:34px 26px;transition:.3s}
.adv-item:hover{background:rgba(255,255,255,.12);transform:translateY(-6px)}
.adv-ico{width:58px;height:58px;border-radius:12px;background:rgba(255,122,0,.15);color:var(--orange);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.adv-ico svg{width:30px;height:30px}
.adv-item h3{font-size:18px;margin-bottom:10px}
.adv-item p{font-size:13.5px;color:rgba(255,255,255,.72);line-height:1.9}

/* 关于 */
.about-in{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.about-lead{color:var(--text-2);margin-bottom:16px}
.about-points{margin:6px 0 26px}
.about-points li{padding:9px 0 9px 26px;position:relative;color:var(--text-2);border-bottom:1px dashed var(--line)}
.about-points li::before{content:"";position:absolute;left:4px;top:17px;width:8px;height:8px;border-radius:50%;background:var(--orange)}
.about-btns{display:flex;gap:12px}
.about-img{position:relative}
.about-img img{border-radius:10px;box-shadow:var(--shadow);width:100%;height:380px;object-fit:cover}
.about-img-badge{position:absolute;left:-22px;bottom:26px;background:var(--blue);color:#fff;border-radius:10px;padding:16px 22px;box-shadow:var(--shadow)}
.about-img-badge b{font-size:32px}
.about-img-badge i{font-style:normal;font-size:18px;color:var(--orange)}
.about-img-badge span{display:block;font-size:13px;opacity:.85}

/* 新闻 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{background:#fff;border-radius:8px;padding:24px 24px 20px;display:flex;gap:18px;box-shadow:0 3px 14px rgba(0,0,0,.06);transition:.3s}
.news-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.news-date{text-align:center;min-width:58px;height:64px;background:var(--bg-gray);border-radius:6px;padding-top:8px}
.news-date b{display:block;font-size:24px;color:var(--blue)}
.news-date span{font-size:12px;color:var(--text-3)}
.news-body h3{font-size:15.5px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-body h3{color:var(--blue-l)}
.news-body p{font-size:13px;color:var(--text-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-list li{display:flex;align-items:center;gap:16px;padding:12px 4px;border-bottom:1px dashed var(--line)}
.news-date{color:var(--text-3);font-size:13px;min-width:84px}
.news-list a{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.news-list a:hover{color:var(--blue-l)}

/* 合作伙伴 */
.partner-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.partner-item{background:#fff;border:1px solid var(--line);border-radius:6px;height:88px;display:flex;align-items:center;justify-content:center;padding:14px;transition:.3s;color:var(--text-3);font-size:14px;text-align:center}
.partner-item:hover{border-color:var(--blue-l);box-shadow:var(--shadow);color:var(--blue-l)}
.partner-item img{max-height:56px;object-fit:contain;filter:grayscale(1);opacity:.8}
.partner-item:hover img{filter:none;opacity:1}

/* 面包屑 */
.crumb{background:var(--bg-gray);border-bottom:1px solid var(--line);padding:13px 0;font-size:13.5px;color:var(--text-3)}
.crumb b{color:var(--text);font-weight:600}
.crumb a:hover{color:var(--blue-l)}

/* 频道页 */
.chan-nav{display:flex;flex-wrap:wrap;gap:10px;padding:22px 16px 0}
.chan-nav a{padding:9px 24px;background:#fff;border:1px solid var(--line);border-radius:4px;font-size:14.5px}
.chan-nav a:hover,.chan-nav a.active{background:var(--blue);border-color:var(--blue);color:#fff}
.chan-intro-in{display:grid;grid-template-columns:1fr 420px;gap:40px;align-items:center}
.chan-info h2{font-size:26px;color:var(--blue-d)}
.chan-info p{color:var(--text-2);margin:12px 0 18px}
.chan-subs{display:flex;flex-wrap:wrap;gap:10px}
.chan-subs a{padding:7px 18px;background:var(--bg-gray);border-radius:4px;font-size:14px}
.chan-subs a:hover{background:var(--blue-l);color:#fff}
.chan-img img{border-radius:10px;box-shadow:var(--shadow);height:250px;width:100%;object-fit:cover}
.sub-nav{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.sub-nav a{padding:7px 20px;background:var(--bg-gray);border-radius:4px;font-size:14px}
.sub-nav a:hover,.sub-nav a.active{background:var(--blue-l);color:#fff}

/* 产品卡片 */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-grid-4{grid-template-columns:repeat(4,1fr)}
.prod-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 3px 14px rgba(0,0,0,.06);transition:.3s;border:1px solid transparent}
.prod-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--blue-l)}
.prod-img{height:210px;overflow:hidden;background:#EDF2F8}
.prod-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.prod-card:hover .prod-img img{transform:scale(1.06)}
.prod-card h3{font-size:16.5px;padding:14px 18px 2px;text-align:center;color:var(--blue-d)}
.prod-card:hover h3{color:var(--orange)}
.prod-card p{font-size:13px;color:var(--text-2);padding:4px 18px 18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 产品详情 */
.pd-top{display:grid;grid-template-columns:540px 1fr;gap:44px}
.pd-main-img{border:1px solid var(--line);border-radius:8px;overflow:hidden;background:#EDF2F8}
.pd-main-img img{width:100%;height:400px;object-fit:cover}
.pd-thumbs{display:flex;gap:10px;margin-top:12px;overflow-x:auto}
.pd-thumbs img{width:76px;height:76px;object-fit:cover;border:2px solid transparent;border-radius:5px;cursor:pointer;background:#EDF2F8}
.pd-thumbs img.on{border-color:var(--orange)}
.pd-info h1{font-size:26px;color:var(--blue-d);line-height:1.4}
.pd-summary{color:var(--text-2);margin:16px 0 24px;padding:16px;background:var(--bg-gray);border-left:3px solid var(--orange);border-radius:0 6px 6px 0}
.pd-acts{margin-top:18px;color:var(--text-2);font-size:14px}
.pd-acts b{color:var(--blue);font-size:18px}
.pd-block{margin-top:44px}
.pd-h{font-size:20px;color:var(--blue-d);padding-left:12px;border-left:4px solid var(--orange);margin-bottom:18px}
.pd-features li{padding:10px 0 10px 28px;position:relative;border-bottom:1px dashed var(--line);color:var(--text-2)}
.pd-features li::before{content:"✓";position:absolute;left:4px;top:9px;color:var(--orange);font-weight:700}
.pd-params{width:100%}
.pd-params tr:nth-child(odd){background:var(--bg-gray)}
.pd-params th{width:200px;text-align:left;padding:11px 16px;color:var(--blue-d);font-weight:600;border:1px solid var(--line)}
.pd-params td{padding:11px 16px;border:1px solid var(--line);color:var(--text-2)}
.pd-video{position:relative;padding-top:56.25%;border-radius:8px;overflow:hidden}
.pd-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case-grid-4{grid-template-columns:repeat(4,1fr)}
.case-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 3px 14px rgba(0,0,0,.06);transition:.3s}
.case-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.case-img{position:relative;height:180px;overflow:hidden}
.case-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.case-card:hover .case-img img{transform:scale(1.06)}
.case-img em{position:absolute;left:12px;top:12px;font-style:normal;background:rgba(11,77,162,.85);color:#fff;font-size:12px;padding:3px 12px;border-radius:3px}
.case-body{padding:16px 18px 20px}
.case-body h3{font-size:15.5px;line-height:1.5}
.case-card:hover .case-body h3{color:var(--blue-l)}
.case-body p{font-size:13px;color:var(--text-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* 富文本/文章 */
.rich{color:var(--text-2);line-height:1.9}
.rich img{max-width:100%;border-radius:6px;margin:10px 0}
.rich p,.rich ul,.rich ol{margin:12px 0}
.rich h2,.rich h3{color:var(--blue-d);margin:22px 0 10px;font-size:18px}
.rich ul,.rich ol{padding-left:22px;list-style:disc}
.rich ol{list-style:decimal}
.rich li{margin:6px 0}
.rich-center{text-align:left}
.art{max-width:900px}
.art-title{font-size:26px;text-align:center;color:var(--blue-d);line-height:1.5}
.art-meta{text-align:center;color:var(--text-3);font-size:13.5px;margin:14px 0 26px;padding-bottom:18px;border-bottom:1px solid var(--line)}
.art-meta em{font-style:normal;color:var(--orange);margin-right:14px}
.art-cover{border-radius:8px;margin:6px 0 20px}
.art-cta{text-align:center;margin-top:36px;display:flex;gap:14px;justify-content:center}
.art-prevnext{display:flex;justify-content:space-between;gap:14px;margin-top:36px;padding-top:22px;border-top:1px solid var(--line)}
.pn{flex:1;min-width:0;font-size:13.5px;color:var(--text-2)}
.pn i{display:block;font-style:normal;color:var(--text-3);font-size:12px;margin-bottom:4px}
.pn:hover{color:var(--blue-l)}
.pn-r{text-align:right}

/* 页内横幅 */
.page-hero{height:300px;background-size:cover;background-position:center;position:relative;display:flex;align-items:center}
.page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,53,111,.88),rgba(11,77,162,.45))}
.page-hero .wrap{position:relative;color:#fff}
.page-hero h1{font-size:34px;letter-spacing:2px}
.page-hero p{margin:10px 0 20px;opacity:.9}

/* 定制流程 */
.flow-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px}
.flow-item{background:#fff;border-radius:8px;padding:24px 18px;text-align:center;box-shadow:0 3px 12px rgba(0,0,0,.05);transition:.3s}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.flow-item b{display:block;font-size:26px;color:var(--orange);opacity:.85}
.flow-item h3{font-size:15.5px;margin:8px 0 6px;color:var(--blue-d)}
.flow-item p{font-size:12.5px;color:var(--text-2)}

/* 留言表单 */
.msg-form{max-width:860px;margin:0 auto;background:#fff;border-radius:10px;padding:34px;box-shadow:var(--shadow)}
.msg-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.msg-item-full{grid-column:1/-1}
.msg-item label{display:block;font-size:14px;margin-bottom:7px;color:var(--text)}
.msg-item label i{color:var(--orange);font-style:normal}
.msg-item input,.msg-item textarea{width:100%;border:1px solid #D6DEE9;border-radius:5px;padding:11px 14px;font-size:14px;outline:none;transition:.25s;font-family:inherit;resize:vertical}
.msg-item input:focus,.msg-item textarea:focus{border-color:var(--blue-l);box-shadow:0 0 0 3px rgba(22,104,220,.12)}
.msg-sub{display:flex;align-items:center;gap:16px;margin-top:20px}
.msg-tip{font-size:14px}
.msg-tip.ok{color:#0AA870}
.msg-tip.err{color:#E5484D}

/* 联系页 */
.contact-hero{background:linear-gradient(135deg,#08356F,#1668DC);color:#fff;padding:56px 0;text-align:center}
.contact-hero h1{font-size:32px;letter-spacing:2px}
.contact-hero p{margin-top:10px;opacity:.85}
.contact-in{display:grid;grid-template-columns:1fr 1.2fr;gap:44px;align-items:start}
.ci-item{padding:14px 0;border-bottom:1px dashed var(--line)}
.ci-item b{color:var(--blue-d);display:inline-block;min-width:86px}
.ci-item p{display:inline;color:var(--text-2)}
.ci-qr{border:0;padding-top:20px}
.ci-qr img{width:140px;border-radius:8px;border:1px solid var(--line)}
.contact-form h2{font-size:22px;color:var(--blue-d)}
.cf-desc{color:var(--text-2);margin:8px 0 20px}

/* 关于/资讯 布局 */
.about-wrap,.news-wrap{display:grid;grid-template-columns:250px 1fr;gap:40px;align-items:start}
.news-side{background:#fff;border:1px solid var(--line);border-radius:8px;overflow:hidden;position:sticky;top:96px}
.news-side h3{background:var(--blue);color:#fff;font-size:16px;padding:14px 18px}
.news-side a{display:block;padding:12px 18px;border-bottom:1px solid var(--bg-gray);font-size:14.5px;color:var(--text-2)}
.news-side a:hover,.news-side a.active{color:var(--blue-l);background:var(--bg-gray);border-left:3px solid var(--orange)}
.side-contact{padding:18px;background:var(--bg-gray)}
.side-contact h4{color:var(--blue-d);font-size:15px}
.side-contact p{color:var(--text-2);font-size:13.5px;margin:8px 0}
.side-contact b{color:var(--orange);font-size:17px}
.about-main,.news-main{min-width:0}
.pg-title{font-size:24px;color:var(--blue-d);margin-bottom:22px;padding-bottom:14px;border-bottom:2px solid var(--blue)}
.news-items li{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
.ni-img{flex:0 0 190px;height:120px;overflow:hidden;border-radius:6px;background:var(--bg-gray)}
.ni-img img{width:100%;height:100%;object-fit:cover;transition:.4s}
.news-items li:hover .ni-img img{transform:scale(1.06)}
.ni-body{flex:1;min-width:0}
.ni-body h3{font-size:17px;line-height:1.5}
.news-items li:hover h3 a{color:var(--blue-l)}
.ni-body p{font-size:13.5px;color:var(--text-2);margin-top:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.ni-meta{margin-top:10px;font-size:12.5px;color:var(--text-3);display:flex;gap:14px;align-items:center}
.ni-cate{background:var(--bg-gray);padding:2px 10px;border-radius:3px;color:var(--blue-l)}

/* 友链 */
.flinks{padding:14px 16px;font-size:13px;color:var(--text-3);display:flex;flex-wrap:wrap;gap:6px 14px;border-top:1px solid var(--line)}
.flinks a:hover{color:var(--blue-l)}

/* 页脚 */
.footer{background:#0A1F3C;color:rgba(255,255,255,.72);font-size:13.5px}
.footer-in{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr .8fr;gap:30px;padding:48px 0 40px}
.footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-col a{display:block;padding:4px 0;color:rgba(255,255,255,.6)}
.footer-col a:hover{color:#fff}
.footer-about p{line-height:1.9;margin-bottom:16px}
.footer-btns{display:flex;gap:10px}
.footer-btns .btn{padding:8px 20px;font-size:13.5px}
.footer-contact p{padding:3px 0}
.footer-qr{text-align:center}
.footer-qr img{width:110px;height:110px;background:#fff;border-radius:6px;margin:0 auto 8px;object-fit:contain}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:16px 0;text-align:center;font-size:12.5px;color:rgba(255,255,255,.45)}
.footer-bottom a{color:rgba(255,255,255,.45)}

/* 移动端快捷栏 */
.m-bar{display:none}
.m-bar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:12px;color:#fff;padding:8px 0}
.m-bar svg{width:20px;height:20px}
.m-bar a:nth-child(1){background:var(--blue)}
.m-bar a:nth-child(2){background:var(--orange)}
.m-bar a:nth-child(3){background:#0A1F3C}

/* 空状态/分页 */
.empty{padding:48px 0;text-align:center;color:var(--text-3);grid-column:1/-1}
.pagebar{margin-top:34px;text-align:center}
.pagebar ul{display:inline-flex;gap:6px;flex-wrap:wrap;justify-content:center}
.pagebar li a,.pagebar li span{display:inline-block;padding:7px 14px;border:1px solid var(--line);border-radius:4px;font-size:13.5px;color:var(--text-2)}
.pagebar li.active span{background:var(--blue);border-color:var(--blue);color:#fff}
.pagebar li a:hover{border-color:var(--blue-l);color:var(--blue-l)}

/* 404 */
.e404{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}
.e404 h1{font-size:100px;color:var(--blue);opacity:.3}
.e404 p{color:var(--text-2)}
.e404 div{display:flex;gap:12px}

/* 时间线(发展历程) */
.timeline li{position:relative;padding:0 0 18px 26px;border-left:2px solid var(--line);margin-left:8px;list-style:none}
.timeline li::before{content:"";position:absolute;left:-6px;top:6px;width:10px;height:10px;border-radius:50%;background:var(--orange)}

/* =====================================================
   响应式
   ===================================================== */
@media (max-width:1100px){
  .header-tel{display:none}
  .nav>ul>li>a{padding:0 12px;font-size:15px}
  .cat-grid,.prod-grid,.case-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .app-grid-3{grid-template-columns:repeat(2,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(3,1fr)}
  .partner-grid{grid-template-columns:repeat(3,1fr)}
  .pd-top{grid-template-columns:1fr}
  .prod-grid-4,.case-grid-4{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .topbar .topbar-l{display:none}
  .menu-btn{display:block}
  .header-in{height:62px}
  .nav{position:fixed;top:62px;left:0;right:0;bottom:0;background:#fff;z-index:98;padding:10px 0 70px;overflow-y:auto;transform:translateX(100%);transition:.3s}
  body.nav-open .nav{transform:translateX(0)}
  .nav>ul{display:block}
  .nav>ul>li>a{line-height:52px;border-bottom:1px solid var(--bg-gray)}
  .nav>ul>li.has-sub::after{top:20px}
  .nav .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;padding:0;display:none}
  .nav>ul>li:hover .sub{display:block}
  .nav .sub a{padding-left:34px}
  .banner{height:440px}
  .banner-slogan h1{font-size:26px}
  .banner-slogan p{font-size:14px}
  .stats-in{grid-template-columns:repeat(2,1fr);padding:22px 0}
  .stat{border:0}
  .stat b{font-size:30px}
  .sec{padding:44px 0}
  .sec-head h2{font-size:24px}
  .cat-grid,.prod-grid,.case-grid,.app-grid,.app-grid-3,.prod-grid-4,.case-grid-4,.news-grid{grid-template-columns:1fr 1fr}
  .adv-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr 1fr}
  .partner-grid{grid-template-columns:1fr 1fr}
  .about-in{grid-template-columns:1fr;gap:28px}
  .about-img img{height:240px}
  .about-img-badge{left:12px}
  .chan-intro-in{grid-template-columns:1fr}
  .chan-img{display:none}
  .contact-in{grid-template-columns:1fr}
  .about-wrap,.news-wrap{grid-template-columns:1fr}
  .news-side{position:static}
  .msg-form{padding:22px}
  .msg-grid{grid-template-columns:1fr}
  .footer-in{grid-template-columns:1fr 1fr;gap:24px}
  .footer-about{grid-column:1/-1}
  .m-bar{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:97}
  body{padding-bottom:52px}
  .art-title{font-size:20px}
  .news-items li{flex-direction:column;gap:12px}
  .ni-img{width:100%;flex:auto;height:170px}
  .pd-main-img img{height:260px}
  .banner-media video{min-width:100%}
}
@media (max-width:420px){
  .cat-grid,.prod-grid,.case-grid,.app-grid,.news-grid{grid-template-columns:1fr}
  .banner-slogan h1{font-size:22px}
}