/* ============================================================
   全站共享样式（前台单站 / 城市分站 / 资讯 / 产品）
   :root 主题变量由各页面内联 <style> 设置
   ============================================================ */
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:#1f2937;line-height:1.7;background:#fff;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.sec{padding:78px 0}
.sec-tag{color:var(--c1);font-weight:800;letter-spacing:3px;font-size:13px;text-align:center}
.sec-title{font-size:32px;font-weight:800;text-align:center;margin:10px 0 8px;color:#0f172a}
.sec-sub{text-align:center;color:#64748b;margin-bottom:44px;font-size:15px}
.bg-soft{background:#f7f9fc}

/* 顶栏 / 导航 */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid #eef1f6}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:900;font-size:20px;color:var(--c2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.logo span{color:var(--c1)}
.menu{display:flex;gap:28px;font-size:15px;color:#475569}
.menu a:hover{color:var(--c1)}
.menu a.on{color:var(--c1);font-weight:800}
.nav-tel{background:var(--c1);color:#fff!important;padding:9px 18px;border-radius:8px;font-weight:700;font-size:14px;white-space:nowrap}
@media(max-width:820px){.nav .wrap{height:auto;flex-wrap:wrap;padding:10px 0}.menu{display:flex;gap:16px;font-size:13px;overflow-x:auto;width:100%;order:3;margin-top:8px;padding-bottom:2px;-webkit-overflow-scrolling:touch}.menu::-webkit-scrollbar{display:none}.menu a{flex:0 0 auto}}

/* Hero（资讯/产品页头图） */
.hero{position:relative;overflow:hidden;background:linear-gradient(130deg,var(--c2),var(--c1));color:#fff;padding:64px 0 56px;text-align:center}
.hero::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 20%,rgba(255,255,255,.18),transparent 45%)}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:38px;font-weight:900}
.hero p{opacity:.9;margin-top:10px;font-size:16px}
/* Hero 中央可拨打电话 */
.hero-tel{display:inline-flex;align-items:center;gap:10px;margin-top:28px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.45);color:#fff;font-weight:800;font-size:19px;padding:13px 30px;border-radius:40px;backdrop-filter:blur(4px);transition:.2s;white-space:nowrap}
.hero-tel:hover{background:#fff;color:var(--c1);transform:translateY(-2px)}
@media(max-width:640px){.hero-tel{font-size:16px;padding:11px 22px}}

/* 首页 Hero */
.hero-notice{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);padding:7px 16px;border-radius:30px;font-size:13px;margin-bottom:22px}
.hero h1{font-size:46px;font-weight:900;line-height:1.25;letter-spacing:1px}
.hero .sub{font-size:20px;margin:14px 0;opacity:.95;font-weight:600}
.hero .desc{max-width:760px;opacity:.9;font-size:15px;margin:0 auto}
.badges{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;justify-content:center}
.badge{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:12px;padding:12px 20px;backdrop-filter:blur(4px)}
.badge b{font-size:22px;display:block;font-weight:900}
.badge span{font-size:12px;opacity:.85}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:38px;max-width:720px;margin-left:auto;margin-right:auto}
.hero-stats .item{background:rgba(255,255,255,.1);border-radius:14px;padding:20px;text-align:center;border:1px solid rgba(255,255,255,.18)}
.hero-stats b{font-size:26px;font-weight:900;display:block}
.hero-stats span{font-size:13px;opacity:.85}

/* 关于 */
.about-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:44px;align-items:start}
.about-grid h2{font-size:28px;font-weight:800;margin-bottom:18px;color:#0f172a}
.about-grid p{color:#475569;margin-bottom:14px}
.about-cta{margin-top:22px;background:var(--c3);border-radius:14px;padding:22px}
.about-cta .t{color:#334155;font-size:14px;margin-bottom:10px}
.about-cta .tel{font-size:26px;font-weight:900;color:var(--c1)}
.about-stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.about-stats .item{border:1px solid #eef1f6;border-radius:14px;padding:22px;text-align:center;background:#fbfcfe}
.about-stats b{font-size:26px;color:var(--c1);font-weight:900;display:block}
.about-stats span{font-size:13px;color:#64748b}
@media(max-width:820px){.about-grid{grid-template-columns:1fr}}

/* 产品（首页模块） */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.prod-card{display:block;background:#fff;border:1px solid #eef1f6;border-radius:16px;overflow:hidden;transition:.25s;box-shadow:0 4px 18px rgba(15,23,42,.03);color:inherit;text-decoration:none}
.prod-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(15,23,42,.1);border-color:var(--c1)}
.prod-head{background:var(--c3);color:var(--c1);padding:20px 22px;border-bottom:1px solid #eef1f6}
.prod-head .no{font-size:13px;opacity:.65;font-weight:800;color:#94a3b8}
.prod-head .nm{font-size:19px;font-weight:800;margin-top:4px;color:var(--c1)}
.prod-body{padding:20px}
.prod-cat{display:inline-block;background:var(--c3);color:var(--c1);font-size:12px;font-weight:700;padding:3px 11px;border-radius:20px;margin-bottom:10px}
.prod-sum{font-size:13px;color:#64748b;line-height:1.6;margin-bottom:14px}
.prod-more{font-size:13px;font-weight:700;color:var(--c1)}
@media(max-width:820px){.prod-grid{grid-template-columns:1fr}}

/* 产品（列表页 pcard） */
.cat-title{font-size:24px;font-weight:800;color:#0f172a;margin:34px 0 18px;padding-left:14px;border-left:5px solid var(--c1)}
.pcard{display:block;background:#fff;border:1px solid #eef1f6;border-radius:16px;overflow:hidden;transition:.25s;color:inherit;text-decoration:none}
.pcard:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(15,23,42,.1);border-color:var(--c1)}
.phead{background:var(--c3);color:var(--c1);padding:20px 22px;border-bottom:1px solid #eef1f6}
.phead .pcat{font-size:12px;opacity:.7;font-weight:700;color:#94a3b8}
.phead .pnm{font-size:18px;font-weight:800;margin-top:6px;line-height:1.4;color:var(--c1)}
.pbody{padding:18px}
.pnum{font-size:13px;color:#64748b;margin-bottom:14px}
.pmore{font-size:13px;font-weight:700;color:var(--c1)}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.adv-card{border:1px solid #eef1f6;border-radius:16px;padding:28px;background:#fff;transition:.25s}
.adv-card:hover{border-color:var(--c1);box-shadow:0 12px 30px rgba(15,23,42,.08)}
.adv-card .ic{width:48px;height:48px;border-radius:12px;background:var(--c3);color:var(--c1);display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:900;margin-bottom:16px}
.adv-card h3{font-size:18px;font-weight:800;margin-bottom:10px}
.adv-card p{color:#64748b;font-size:14px}
@media(max-width:820px){.adv-grid{grid-template-columns:1fr}}

/* 经营范围 */
.scope-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.scope-card{border:1px solid #eef1f6;border-radius:14px;padding:20px;background:#fbfcfe;transition:.2s}
.scope-card:hover{background:var(--c1);color:#fff;transform:translateY(-4px)}
.scope-card:hover .it{color:rgba(255,255,255,.85)}
.scope-card .tt{font-weight:800;font-size:16px;margin-bottom:8px}
.scope-card .it{font-size:13px;color:#64748b}
@media(max-width:820px){.scope-grid{grid-template-columns:1fr 1fr}}

/* CTA 条 */
.cta-bar{background:linear-gradient(120deg,var(--c2),var(--c1));color:#fff;text-align:center;padding:54px 20px}
.cta-bar h2{font-size:30px;font-weight:900}
.cta-bar p{opacity:.9;margin:12px 0 22px}
.cta-btn{display:inline-block;background:#fff;color:var(--c2);font-weight:800;padding:14px 40px;border-radius:40px;font-size:18px}
.cta-btn:hover{background:#eef1f6}

/* 联系我们 */
.contact-box{display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:14px;align-items:stretch}
.contact-info{display:flex;flex-direction:column;gap:14px}
.ci-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid #eef1f6;border-radius:14px;padding:16px 18px}
.ci-ic{font-size:22px;line-height:1.2}
.ci-t{font-size:12px;color:#94a3b8;margin-bottom:3px}
.ci-v{font-size:15px;font-weight:700;color:#0f172a}
.contact-card{background:#fff;border:1px solid #eef1f6;border-radius:16px;padding:26px;display:flex;flex-direction:column;align-items:center;text-align:center;justify-content:center}
.cc-h{font-size:18px;font-weight:800;color:#0f172a}
.cc-sub{font-size:13px;color:#64748b;margin:6px 0 16px}
.qr-img{width:190px;height:190px;object-fit:cover;border:1px solid #eef1f6;border-radius:12px;background:#f8fafc}
.qr-empty{width:190px;height:190px;border:1px dashed #cbd5e1;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#94a3b8;font-size:13px;padding:12px;line-height:1.6}
.cc-wx{margin-top:14px;font-weight:800;color:var(--c1);font-size:16px}
.cc-wx small{display:block;color:#64748b;font-weight:500;font-size:12px;margin-top:2px}
@media(max-width:820px){.contact-box{grid-template-columns:1fr}}

/* 城市分站切换 */
.city-sec{background:#0f172a;color:#cbd5e1;padding:50px 0}
.city-sec h3{color:#fff;font-size:20px;font-weight:800;margin-bottom:6px}
.city-sec .cs-sub{font-size:13px;color:#94a3b8;margin-bottom:22px}
.city-list{display:flex;flex-wrap:wrap;gap:10px}
.city-list a{background:#1e293b;border:1px solid #334155;border-radius:8px;padding:8px 16px;font-size:14px;color:#cbd5e1;transition:.2s}
.city-list a:hover{background:var(--c1);color:#fff;border-color:var(--c1)}
.city-list a.active{background:var(--c1);color:#fff;border-color:var(--c1)}
.city-more-btn{margin-top:16px;background:#1e293b;color:#cbd5e1;border:1px solid #334155;border-radius:8px;padding:9px 18px;font-size:13px;cursor:pointer;font-weight:600}
.city-more-btn:hover{background:var(--c1);color:#fff;border-color:var(--c1)}
.tail-tag{display:inline-block;background:#0b1220;border:1px solid #334155;border-radius:20px;padding:4px 12px;font-size:12px;color:#94a3b8;margin:4px 4px 0 0}
.tail-tag:hover{background:var(--c1);color:#fff;border-color:var(--c1)}

/* 长尾词推荐（全站内容底部） */
.tail-sec{background:#f7f9fc;border-top:1px solid #eef1f6;padding:42px 0}
.tail-sec .tail-h{font-size:15px;font-weight:800;color:#0f172a;margin-bottom:16px;display:flex;align-items:center;gap:8px}
.tail-sec .tail-h small{font-size:12px;color:#94a3b8;font-weight:500}
.tail-tags{display:flex;flex-wrap:wrap;gap:10px}
.tail-tags a{display:inline-block;background:#fff;border:1px solid #e2e8f0;color:#475569;font-size:13px;padding:7px 14px;border-radius:20px;transition:.15s}
.tail-tags a:hover{border-color:var(--c1);color:var(--c1);background:var(--c3)}

/* 资讯模块（首页） */
.news-mini{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:30px}
.nm{display:flex;flex-direction:column;gap:8px;background:#fff;border:1px solid #eef1f6;border-radius:16px;padding:22px;transition:.25s;text-decoration:none}
.nm:hover{transform:translateY(-5px);box-shadow:0 14px 34px rgba(15,23,42,.1);border-color:var(--c1)}
.nm-kw{display:inline-block;align-self:flex-start;background:var(--c3);color:var(--c1);font-size:12px;font-weight:700;padding:3px 11px;border-radius:20px}
.nm-t{font-size:17px;font-weight:800;color:#0f172a;line-height:1.4}
.nm-s{font-size:13px;color:#64748b;flex:1}
.nm-more{font-size:13px;font-weight:700;color:var(--c1)}
.btn-news{display:inline-block;background:var(--c1);color:#fff;font-weight:800;padding:12px 28px;border-radius:30px;font-size:14px}
.btn-news:hover{background:var(--c2)}
@media(max-width:820px){.news-mini{grid-template-columns:1fr}}

/* 资讯列表（资讯中心） */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.ncard{border:1px solid #eef1f6;border-radius:16px;overflow:hidden;background:#fff;transition:.25s;display:flex;flex-direction:column}
.ncard:hover{box-shadow:0 14px 34px rgba(15,23,42,.1);transform:translateY(-4px)}
.ncard .pad{padding:24px;flex:1;display:flex;flex-direction:column}
.ncard .kw{display:inline-block;background:var(--c3);color:var(--c1);font-size:12px;font-weight:700;padding:3px 10px;border-radius:20px;align-self:flex-start;margin-bottom:12px}
.ncard h3{font-size:19px;font-weight:800;margin-bottom:10px;line-height:1.4;color:#0f172a}
.ncard .sum{color:#64748b;font-size:14px;flex:1}
.ncard .ft{margin-top:16px;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:#94a3b8}
.ncard .more{color:var(--c1);font-weight:700}
.empty{text-align:center;color:#94a3b8;padding:60px 20px}
@media(max-width:820px){.news-grid{grid-template-columns:1fr}.hero h1{font-size:28px}}

/* 文章详情 */
.article{background:#fff;border:1px solid #eef1f6;border-radius:18px;padding:40px;margin:34px 0;box-shadow:0 4px 18px rgba(15,23,42,.04)}
.article .kw{display:inline-block;background:var(--c3);color:var(--c1);font-size:12px;font-weight:700;padding:3px 11px;border-radius:20px;margin-bottom:14px}
.article h1{font-size:30px;font-weight:900;line-height:1.35;color:#0f172a;margin-bottom:12px}
.article .meta{color:#94a3b8;font-size:13px;margin-bottom:26px;padding-bottom:18px;border-bottom:1px solid #eef1f6}
.article h2{font-size:23px;font-weight:800;margin:30px 0 14px;color:#0f172a}
.article h3{font-size:19px;font-weight:800;margin:22px 0 10px;color:#1e293b}
.article p{margin-bottom:16px;color:#374151}
.article ul{margin:0 0 18px 22px}
.article li{margin-bottom:8px;color:#374151}
.article .tags{margin-top:28px;padding-top:18px;border-top:1px solid #eef1f6;display:flex;flex-wrap:wrap;gap:8px}
.article .tags span{background:#f1f5f9;color:#475569;font-size:12px;padding:4px 11px;border-radius:20px}
.back{display:inline-block;margin-top:6px;color:var(--c1);font-weight:700}
@media(max-width:820px){.article{padding:24px}.article h1{font-size:24px}}

/* 产品详情 */
.crumbs{font-size:13px;color:#94a3b8;padding:18px 0 0}
.crumbs a{color:var(--c1)}
.card{background:#fff;border:1px solid #eef1f6;border-radius:18px;padding:36px;margin:18px 0;box-shadow:0 4px 18px rgba(15,23,42,.04)}
.card .cat{display:inline-block;background:var(--c3);color:var(--c1);font-size:12px;font-weight:700;padding:3px 11px;border-radius:20px;margin-bottom:12px}
.card h1{font-size:28px;font-weight:900;color:#0f172a;margin-bottom:10px;line-height:1.35}
.card .sum{color:#475569;font-size:15px;margin-bottom:20px}
.sec-h{font-size:20px;font-weight:800;margin:28px 0 14px;color:#0f172a;padding-left:14px;border-left:5px solid var(--c1)}
.feat{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.feat .it{background:#f8fafc;border:1px solid #eef1f6;border-radius:12px;padding:14px 16px;font-size:14px;color:#374151;display:flex;gap:10px;align-items:flex-start}
.feat .it .dot{color:var(--c1);font-weight:900}
.spec{width:100%;border-collapse:collapse;font-size:14px}
.spec td{padding:12px 14px;border-bottom:1px solid #eef1f6}
.spec td:first-child{color:#64748b;width:38%;background:#f8fafc;font-weight:600}
.content{margin-top:10px;color:#374151}
.content h2{font-size:21px;font-weight:800;margin:24px 0 12px;color:#0f172a}
.content h3{font-size:17px;font-weight:800;margin:18px 0 8px}
.content p{margin-bottom:14px}
.content ul{margin:0 0 18px 22px}.content li{margin-bottom:8px}
.tags{margin-top:24px;padding-top:18px;border-top:1px solid #eef1f6;display:flex;flex-wrap:wrap;gap:8px}
.tags span{background:#f1f5f9;color:#475569;font-size:12px;padding:4px 11px;border-radius:20px}
.cta{background:linear-gradient(120deg,var(--c2),var(--c1));color:#fff;text-align:center;padding:34px 20px;border-radius:16px;margin:24px 0}
.cta h3{font-size:22px;font-weight:900}
.cta a{display:inline-block;background:#fff;color:var(--c2);font-weight:800;padding:12px 34px;border-radius:30px;margin-top:14px;font-size:16px}
.rel{margin-top:36px}
.rel .rcard{display:block;background:#fff;border:1px solid #eef1f6;border-radius:14px;padding:18px 20px;margin-bottom:14px;transition:.2s;color:inherit;text-decoration:none}
.rel .rcard:hover{border-color:var(--c1);box-shadow:0 10px 26px rgba(15,23,42,.08);transform:translateY(-3px)}
.rel .rcard .rcat{font-size:12px;color:var(--c1);font-weight:700}
.rel .rcard h4{font-size:17px;font-weight:800;margin:6px 0;color:#0f172a}
.rel .rcard p{font-size:13px;color:#64748b}
@media(max-width:820px){.card{padding:22px}.feat{grid-template-columns:1fr}}

/* 页脚 */
.footer{background:#0b1220;color:#94a3b8;padding:40px 20px 22px;font-size:13px}
.footer a{color:#94a3b8}
.footer a:hover{color:#cbd5e1}
.footer-inner{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px;padding-bottom:26px;border-bottom:1px solid #1e293b}
.footer-col .f-brand{font-weight:900;font-size:18px;color:#e2e8f0;margin-bottom:10px}
.footer-col .f-about{color:#94a3b8;line-height:1.7}
.footer-col .f-tit{font-weight:800;color:#cbd5e1;margin-bottom:12px;font-size:14px}
.footer-col a{display:block;color:#94a3b8;padding:4px 0;transition:.15s}
.footer-col a:hover{color:var(--c1)}
.footer-col p{color:#94a3b8;padding:4px 0}
.footer-bar{max-width:1180px;margin:0 auto;padding-top:18px;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;color:#64748b}
.footer-bar a{color:#94a3b8}
@media(max-width:820px){.footer-inner{grid-template-columns:1fr}}

/* 悬浮电话 */
.float-tel{position:fixed;right:22px;bottom:26px;z-index:60;background:var(--c1);color:#fff;border-radius:50px;padding:14px 22px;font-weight:800;box-shadow:0 10px 30px rgba(30,94,255,.4);display:flex;gap:8px;align-items:center}
.float-tel:hover{transform:scale(1.05)}