/* ============ 天海智能消防 · 官网样式（参考 vip.e-baixing.com/hdaq 视觉体系） ============ */
:root{
  --blue:#336FFF;
  --blue-d:#1F55E0;
  --blue-l:#EEF3FF;
  --blue-soft:#F5F8FF;
  --ink:#222;
  --ink-2:#444;
  --muted:#7A7F8C;
  --line:#EBEBEB;
  --bg-soft:#F7F8FA;
  --radius:3px;
  --shadow:0 6px 20px rgba(31,85,224,.10);
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",Arial,sans-serif;
  color:var(--ink);background:#fff;font-size:15px;line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
ul,ol{list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit;outline:none}
.wrap{max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- 顶部信息条 ---------- */
.topbar{background:#fff;border-bottom:1px solid #F1F1F1;font-size:12px;color:#8A8F9A}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:34px}
.topbar .tb-left{display:flex;align-items:center;gap:8px}
.topbar .tb-logo{width:16px;height:16px;object-fit:contain;opacity:.85}
.topbar .tb-right{display:flex;align-items:center;gap:18px}
.topbar .tb-right a{color:#8A8F9A}
.topbar .tb-right a:hover{color:var(--blue)}
.topbar b{color:var(--blue);font-weight:600}

/* ---------- 蓝色主导航 ---------- */
.header{background:var(--blue);position:sticky;top:0;z-index:60;box-shadow:0 2px 10px rgba(31,85,224,.18)}
.header .wrap{display:flex;align-items:center;height:60px;gap:28px}
.brand{display:flex;align-items:center;gap:10px;color:#fff;flex-shrink:0}
.brand img{width:30px;height:30px;object-fit:contain;background:#fff;border-radius:4px;padding:2px}
.brand .b-txt{display:flex;flex-direction:column;line-height:1.2}
.brand .b-txt strong{font-size:19px;font-weight:700;letter-spacing:.5px}
.brand .b-txt span{font-size:11px;opacity:.72;letter-spacing:2px}
.nav{display:flex;align-items:center;gap:34px;margin-left:auto}
.nav a{color:rgba(255,255,255,.92);font-size:15px;padding:18px 0;position:relative;transition:.2s}
.nav a::after{content:"";position:absolute;left:50%;bottom:12px;width:0;height:2px;background:#fff;transform:translateX(-50%);transition:.25s;border-radius:2px}
.nav a:hover::after,.nav a.active::after{width:22px}
.nav a:hover{color:#fff}
.header-tel{display:flex;align-items:center;gap:8px;color:#fff;font-size:19px;font-weight:700;letter-spacing:.5px;flex-shrink:0}
.header-tel svg{width:20px;height:20px;fill:#fff;opacity:.95}
.header-tel small{display:block;font-size:11px;font-weight:400;opacity:.75;letter-spacing:0}
.burger{display:none;width:26px;height:20px;position:relative;background:none;border:0;cursor:pointer;flex-shrink:0}
.burger i{position:absolute;left:0;width:100%;height:2px;background:#fff;transition:.3s;border-radius:2px}
.burger i:nth-child(1){top:0}.burger i:nth-child(2){top:9px}.burger i:nth-child(3){top:18px}
.burger.on i:nth-child(1){top:9px;transform:rotate(45deg)}
.burger.on i:nth-child(2){opacity:0}
.burger.on i:nth-child(3){top:9px;transform:rotate(-45deg)}

/* ---------- 首页轮播 ---------- */
.hero{position:relative;height:452px;overflow:hidden;background:linear-gradient(120deg,#2E6BFF 0%,#1B4FE0 60%,#1640C4 100%)}
.hero::before{content:"";position:absolute;inset:0;background:
  radial-gradient(700px 340px at 82% 18%,rgba(255,255,255,.16),transparent 70%),
  radial-gradient(500px 300px at 8% 92%,rgba(0,0,0,.18),transparent 70%)}
.hero-slide{position:absolute;inset:0;opacity:0;transition:opacity .7s ease;pointer-events:none}
.hero-slide.on{opacity:1;pointer-events:auto}
.hero-inner{max-width:var(--container);margin:0 auto;padding:0 20px;height:100%;display:flex;align-items:center;gap:40px;position:relative;z-index:2}
.hero-copy{flex:1;color:#fff;max-width:600px}
.hero-copy .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);padding:5px 14px;border-radius:2px;margin-bottom:20px;letter-spacing:1px}
.hero-copy h1{font-size:42px;line-height:1.28;font-weight:800;letter-spacing:1px;margin-bottom:16px}
.hero-copy h1 em{font-style:normal;color:#FFD75E}
.hero-copy p{font-size:15px;line-height:1.9;color:rgba(255,255,255,.86);margin-bottom:28px;max-width:540px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 30px;border-radius:2px;font-size:15px;cursor:pointer;transition:.25s;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:#fff;color:var(--blue-d);font-weight:600}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.22)}
.btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:#fff}
.hero-media{width:430px;flex-shrink:0;position:relative}
.hero-media .shot{background:#fff;border-radius:4px;padding:14px;box-shadow:0 24px 50px rgba(8,26,80,.28)}
.hero-media .shot img{width:100%;height:270px;object-fit:contain;border-radius:2px}
.hero-media .tagline{position:absolute;left:-18px;bottom:-16px;background:#fff;color:var(--blue-d);font-size:13px;font-weight:600;padding:10px 18px;border-radius:2px;box-shadow:0 10px 24px rgba(8,26,80,.18)}
.hero-media .tagline b{color:#FF6A00}
.hero-dots{position:absolute;left:50%;transform:translateX(-50%);bottom:26px;display:flex;gap:10px;z-index:3}
.hero-dots i{width:22px;height:4px;background:rgba(255,255,255,.4);border-radius:2px;cursor:pointer;transition:.25s}
.hero-dots i.on{background:#fff;width:34px}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;display:grid;place-items:center;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;cursor:pointer;z-index:3;transition:.25s;border-radius:50%}
.hero-arrow:hover{background:rgba(255,255,255,.3)}
.hero-arrow.prev{left:24px}.hero-arrow.next{right:24px}

/* ---------- 数据条 ---------- */
.stats{background:#fff;border-bottom:1px solid var(--line);position:relative;z-index:5}
.stats .wrap{display:grid;grid-template-columns:repeat(4,1fr);}
.stats div{padding:26px 10px;text-align:center;border-right:1px solid var(--line)}
.stats div:last-child{border-right:0}
.stats b{display:block;font-size:32px;line-height:1;color:var(--blue);font-weight:800;letter-spacing:-1px}
.stats span{display:block;font-size:13px;color:var(--muted);margin-top:8px}

/* ---------- 通用区块 ---------- */
.section{padding:58px 0}
.section.alt{background:var(--bg-soft)}
.sec-head{text-align:center;margin-bottom:38px}
.sec-head h2{font-size:26px;font-weight:700;color:var(--ink);letter-spacing:.5px}
.sec-head .deco{width:46px;height:2px;background:var(--blue);margin:14px auto 0;position:relative}
.sec-head .deco::after{content:"";position:absolute;left:52px;top:0;width:36px;height:2px;background:#D8DEEA}
.sec-head p{font-size:14px;color:var(--muted);margin-top:14px}
.sec-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;border-bottom:1px solid var(--line);padding-bottom:14px}
.sec-bar h2{font-size:22px;font-weight:700;position:relative;padding-left:14px}
.sec-bar h2::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:20px;background:var(--blue);border-radius:1px}
.sec-bar .more{font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:4px}
.sec-bar .more:hover{color:var(--blue)}

/* ---------- 产品卡片 ---------- */
.grid-products{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-products.cols-3{grid-template-columns:repeat(3,1fr)}
.p-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);position:relative;transition:.28s;overflow:hidden;display:flex;flex-direction:column}
.p-card:hover{border-color:#C9D8FF;box-shadow:0 10px 28px rgba(31,85,224,.12);transform:translateY(-3px)}
.p-thumb{height:200px;display:flex;align-items:center;justify-content:center;background:#FCFCFD;padding:16px;overflow:hidden}
.p-thumb img{width:100%;height:100%;object-fit:contain;transition:transform .4s}
.p-card:hover .p-thumb img{transform:scale(1.06)}
.p-body{padding:14px 16px 18px;border-top:1px solid #F3F3F3;text-align:center}
.p-body .cat{font-size:12px;color:var(--blue);background:var(--blue-l);display:inline-block;padding:1px 8px;border-radius:2px;margin-bottom:8px}
.p-body h3{font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;height:42px;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.p-body p{font-size:12px;color:#9AA0AC;margin-top:6px;height:20px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.badge-hot{position:absolute;top:0;right:0;background:var(--blue);color:#fff;font-size:12px;padding:3px 10px 3px 8px;display:flex;align-items:center;gap:3px;border-bottom-left-radius:3px;z-index:2}
.badge-hot svg{width:11px;height:11px;fill:#fff}
.p-card .book{position:absolute;left:50%;bottom:12px;transform:translateX(-50%) translateY(6px);opacity:0;background:var(--blue);color:#fff;font-size:12px;padding:4px 16px;border-radius:20px;transition:.25s}
.p-card:hover .book{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---------- 公司简介 ---------- */
.about{display:grid;grid-template-columns:1fr 1.15fr;gap:34px;align-items:stretch}
.about-media{position:relative;border-radius:var(--radius);overflow:hidden;min-height:380px;background:#0E1A33}
.about-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;opacity:.9}
.about-media .cap{position:absolute;inset:auto 0 0 0;padding:26px 24px;background:linear-gradient(to top,rgba(8,18,40,.92),rgba(8,18,40,.35) 60%,transparent);color:#fff}
.about-media .cap b{font-size:20px;display:block;letter-spacing:.5px}
.about-media .cap span{font-size:12px;color:rgba(255,255,255,.7);letter-spacing:2px}
.about-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:34px 34px 30px}
.about-body h3{font-size:22px;font-weight:700;margin-bottom:6px}
.about-body .en{font-size:11px;color:#B6BCC8;letter-spacing:3px;text-transform:uppercase;margin-bottom:18px}
.about-body p{font-size:14px;color:#5C6270;line-height:2;margin-bottom:12px;text-align:justify}
.feats{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0 24px}
.feats span{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--ink-2);background:var(--blue-soft);border:1px solid #E3EBFF;padding:6px 12px;border-radius:2px}
.feats span i{width:14px;height:14px;border-radius:50%;background:var(--blue);color:#fff;font-size:10px;display:grid;place-items:center;font-style:normal}
.btn-outline{display:inline-flex;align-items:center;gap:8px;border:1px solid #D7DEEB;color:var(--ink-2);padding:10px 26px;border-radius:22px;font-size:14px;transition:.25s}
.btn-outline:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}

/* ---------- 分类侧栏 + 推荐 ---------- */
.reco{display:grid;grid-template-columns:236px 1fr;gap:22px;align-items:start}
.side{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.side-head{background:var(--blue);color:#fff;font-size:16px;font-weight:600;padding:15px 20px;letter-spacing:.5px}
.side-list{padding:6px 0 10px}
.side-list a{display:flex;align-items:center;justify-content:space-between;padding:11px 20px;font-size:14px;color:#4A5060;border-left:2px solid transparent;transition:.2s}
.side-list a:hover,.side-list a.on{background:var(--blue-soft);color:var(--blue);border-left-color:var(--blue);font-weight:600}
.side-list a span{font-size:12px;color:#BFC5D2}
.side-phone{background:var(--blue);color:#fff;padding:16px 20px}
.side-phone small{display:block;font-size:12px;opacity:.8;margin-bottom:2px}
.side-phone b{font-size:20px;letter-spacing:.5px;display:flex;align-items:center;gap:6px}
.side-phone b svg{width:16px;height:16px;fill:#fff}

/* ---------- 优势 ---------- */
.adv-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 24px;text-align:center;transition:.28s}
.adv:hover{box-shadow:0 12px 30px rgba(31,85,224,.10);transform:translateY(-4px);border-color:#D5E0FF}
.adv .ic{width:58px;height:58px;margin:0 auto 16px;border-radius:50%;background:var(--blue-l);display:grid;place-items:center;color:var(--blue);transition:.28s}
.adv:hover .ic{background:var(--blue);color:#fff}
.adv .ic svg{width:26px;height:26px;fill:currentColor}
.adv h4{font-size:16px;font-weight:700;margin-bottom:10px}
.adv p{font-size:13px;color:var(--muted);line-height:1.85}

/* ---------- 行业应用 ---------- */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.app{position:relative;height:170px;border-radius:var(--radius);overflow:hidden;display:flex;align-items:flex-end;padding:22px;color:#fff;background:linear-gradient(135deg,#2E6BFF,#1B4FE0);transition:.3s}
.app:nth-child(2n){background:linear-gradient(135deg,#3C4A63,#232D42)}
.app:nth-child(3n){background:linear-gradient(135deg,#1C63D6,#123E92)}
.app::after{content:"";position:absolute;right:-30px;top:-30px;width:140px;height:140px;border-radius:50%;background:rgba(255,255,255,.08)}
.app:hover{transform:translateY(-4px);box-shadow:0 14px 30px rgba(20,50,140,.22)}
.app .txt{position:relative;z-index:2}
.app h4{font-size:18px;font-weight:700;margin-bottom:6px}
.app p{font-size:12.5px;color:rgba(255,255,255,.78);line-height:1.7}
.app .idx{position:absolute;right:18px;top:14px;font-size:34px;font-weight:800;color:rgba(255,255,255,.14);z-index:1;letter-spacing:-2px}

/* ---------- 新闻 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.news{display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;transition:.25s}
.news:hover{border-color:#CFDCFF;box-shadow:0 10px 26px rgba(31,85,224,.10)}
.news .date{flex-shrink:0;width:66px;height:66px;background:var(--blue-soft);border:1px solid #E4EBFF;border-radius:2px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--blue)}
.news .date b{font-size:20px;line-height:1;font-weight:800}
.news .date span{font-size:11px;margin-top:5px}
.news .n-body h4{font-size:15px;font-weight:600;line-height:1.6;margin-bottom:6px;transition:.2s}
.news:hover .n-body h4{color:var(--blue)}
.news .n-body p{font-size:12.5px;color:#8A8F9A;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 底部 CTA ---------- */
.cta{background:linear-gradient(120deg,#F6F8FC,#EDF2FF);border-top:1px solid #E7EBF5}
.cta .wrap{display:flex;align-items:center;gap:40px;padding:44px 20px}
.cta .cta-txt{flex:1}
.cta h3{font-size:27px;font-weight:800;color:var(--blue);letter-spacing:.5px;margin-bottom:10px}
.cta p{font-size:14px;color:#77809A;margin-bottom:22px}
.cta .cta-btns{display:flex;gap:14px;flex-wrap:wrap}
.btn-solid{background:var(--blue);color:#fff;font-weight:500;padding:11px 30px;border-radius:22px}
.btn-solid:hover{background:var(--blue-d);box-shadow:0 10px 24px rgba(51,111,255,.32)}
.btn-grad{background:linear-gradient(135deg,#4C86FF,#2454E8);color:#fff;padding:11px 28px;border-radius:22px;box-shadow:0 8px 18px rgba(51,111,255,.28)}
.btn-grad:hover{transform:translateY(-2px)}
.cta .cta-img{width:430px;height:180px;border-radius:3px;overflow:hidden;flex-shrink:0;box-shadow:0 14px 34px rgba(30,60,140,.16)}
.cta .cta-img img{width:100%;height:100%;object-fit:cover}

/* ---------- 页脚 ---------- */
.footer{background:var(--blue);color:#fff;padding:44px 0 40px}
.footer .f-title{text-align:center;font-size:22px;font-weight:700;letter-spacing:2px;margin-bottom:34px}
.f-grid{display:grid;grid-template-columns:190px 1fr 1fr;gap:40px}
.f-grid > div + div{border-left:1px solid rgba(255,255,255,.22);padding-left:40px}
.f-h{font-size:16px;font-weight:700;margin-bottom:6px;letter-spacing:1px}
.f-h::after{content:"";display:block;width:24px;height:2px;background:#fff;margin-top:8px}
.f-nav{margin-top:18px}
.f-nav a{display:block;font-size:13.5px;color:rgba(255,255,255,.88);padding:6px 0;transition:.2s}
.f-nav a:hover{color:#fff;transform:translateX(3px)}
.f-co{margin-top:18px}
.f-co .co-name{font-size:15px;font-weight:700;margin-bottom:4px}
.f-co .row{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:rgba(255,255,255,.9);margin-top:12px}
.f-co .row svg{width:15px;height:15px;fill:rgba(255,255,255,.85);flex-shrink:0;margin-top:4px}
.f-co .row span{display:block}
.f-co .row small{display:block;font-size:12px;opacity:.7}
.f-form{margin-top:18px}
.f-form .frow{display:flex;gap:12px;margin-bottom:12px}
.f-in,.f-ta{width:100%;background:#fff;border:0;border-radius:2px;padding:10px 12px;font-size:13px;color:#333}
.f-in::placeholder,.f-ta::placeholder{color:#A7ADBB}
.f-ta{height:96px;resize:none}
.f-submit{width:100%;background:transparent;border:1px solid #fff;color:#fff;padding:10px;border-radius:2px;font-size:14px;cursor:pointer;transition:.25s;letter-spacing:2px}
.f-submit:hover{background:#fff;color:var(--blue)}
.copy{background:#fff;text-align:center;font-size:12px;color:#9AA0AC;padding:14px 20px;line-height:1.9}
.copy a{color:#9AA0AC}
.copy a:hover{color:var(--blue)}

/* ---------- 悬浮工具 ---------- */
.floatbar{position:fixed;right:18px;bottom:110px;z-index:70;display:flex;flex-direction:column;gap:10px}
.floatbar a,.floatbar button{width:46px;height:46px;border-radius:50%;background:#fff;border:1px solid #E6EAF2;box-shadow:0 6px 18px rgba(30,50,110,.14);display:grid;place-items:center;color:var(--blue);cursor:pointer;position:relative;transition:.25s}
.floatbar a:hover,.floatbar button:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.floatbar svg{width:21px;height:21px;fill:currentColor}
.floatbar .tip{position:absolute;right:56px;top:50%;transform:translateY(-50%) translateX(6px);background:#222;color:#fff;font-size:12px;padding:4px 10px;border-radius:2px;white-space:nowrap;opacity:0;pointer-events:none;transition:.2s}
.floatbar a:hover .tip{opacity:1;transform:translateY(-50%) translateX(0)}
.backtop{opacity:0;visibility:hidden}
.backtop.show{opacity:1;visibility:visible}

/* ---------- 移动端底部操作条 ---------- */
.mbar{display:none;position:fixed;left:0;right:0;bottom:0;z-index:80;background:#fff;border-top:1px solid #EAEDF3;box-shadow:0 -4px 16px rgba(20,40,90,.08)}
.mbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;padding:8px 0 7px;font-size:11px;color:#666}
.mbar a.on{color:var(--blue)}
.mbar svg{width:20px;height:20px;fill:currentColor}
.mbar a.tel{background:var(--blue);color:#fff}

/* ---------- 内页 ---------- */
.page-hero{height:170px;background:linear-gradient(120deg,#2E6BFF,#1742CC);display:flex;align-items:center;position:relative;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.07)}
.page-hero .wrap{color:#fff;position:relative;z-index:2;width:100%}
.page-hero h1{font-size:30px;font-weight:800;letter-spacing:2px}
.page-hero .crumb{font-size:12.5px;color:rgba(255,255,255,.78);margin-top:8px}
.page-hero .crumb a:hover{color:#fff}
.prod-layout{display:grid;grid-template-columns:236px 1fr;gap:24px;align-items:start}
.pager{display:flex;justify-content:center;gap:8px;margin-top:36px;flex-wrap:wrap}
.pager button{min-width:38px;height:36px;padding:0 12px;border:1px solid var(--line);background:#fff;color:#555;border-radius:2px;cursor:pointer;font-size:13px;transition:.2s}
.pager button:hover{border-color:var(--blue);color:var(--blue)}
.pager button.on{background:var(--blue);border-color:var(--blue);color:#fff}
.pager button:disabled{opacity:.45;cursor:not-allowed}
.toolbar{display:flex;align-items:center;justify-content:space-between;background:var(--bg-soft);border:1px solid var(--line);padding:10px 16px;margin-bottom:18px;font-size:13px;color:#6B7280}
.toolbar select{border:1px solid #DDE3EE;background:#fff;padding:5px 10px;border-radius:2px;color:#444}
.empty{text-align:center;color:#98A0AE;padding:60px 0;font-size:14px}

/* 关于我们 */
.about-page{display:grid;grid-template-columns:1.1fr 1fr;gap:44px;align-items:center}
.about-page .ap-img{border-radius:3px;overflow:hidden;box-shadow:0 18px 40px rgba(20,45,120,.14)}
.about-page h2{font-size:26px;font-weight:800;margin-bottom:6px}
.about-page .en{font-size:11px;letter-spacing:3px;color:#B6BCC8;text-transform:uppercase;margin-bottom:20px}
.about-page p{font-size:14px;color:#5C6270;line-height:2.05;margin-bottom:14px;text-align:justify}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:10px}
.tl{border-top:2px solid var(--blue);padding-top:16px}
.tl b{display:block;font-size:22px;color:var(--blue);font-weight:800;letter-spacing:-.5px}
.tl span{font-size:12.5px;color:var(--muted)}

/* 新闻列表 */
.nlist{display:flex;flex-direction:column;gap:16px}
.nitem{display:flex;gap:22px;background:#fff;border:1px solid var(--line);border-radius:3px;padding:20px 22px;transition:.25s}
.nitem:hover{border-color:#CFDCFF;box-shadow:0 10px 26px rgba(31,85,224,.09)}
.nitem .nd{flex-shrink:0;width:78px;text-align:center;border-right:1px solid var(--line);padding-right:16px}
.nitem .nd b{display:block;font-size:26px;color:var(--blue);font-weight:800;line-height:1}
.nitem .nd span{font-size:12px;color:#9AA0AC;display:block;margin-top:6px}
.nitem h3{font-size:16px;font-weight:600;margin-bottom:8px}
.nitem:hover h3{color:var(--blue)}
.nitem p{font-size:13px;color:#838995;line-height:1.8}
.nitem .tag{display:inline-block;font-size:11px;color:var(--blue);background:var(--blue-l);padding:2px 8px;border-radius:2px;margin-bottom:8px}

/* 联系我们 */
.contact-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:38px}
.ct{border:1px solid var(--line);border-radius:3px;padding:26px 20px;text-align:center;transition:.25s;background:#fff}
.ct:hover{border-color:#CFDCFF;box-shadow:0 12px 28px rgba(31,85,224,.10)}
.ct .ic{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--blue-l);display:grid;place-items:center;color:var(--blue)}
.ct .ic svg{width:23px;height:23px;fill:currentColor}
.ct h4{font-size:13px;color:#8A8F9A;font-weight:400;margin-bottom:6px}
.ct b{font-size:16px;color:var(--ink);word-break:break-all}
.contact-main{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:3px;padding:30px}
.form-card h3{font-size:19px;font-weight:700;margin-bottom:4px}
.form-card .fs{font-size:12.5px;color:#9AA0AC;margin-bottom:20px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:14px}
.form-card input,.form-card textarea,.form-card select{width:100%;border:1px solid #E2E6EF;border-radius:2px;padding:11px 13px;font-size:14px;color:#333;background:#FCFCFD;transition:.2s}
.form-card input:focus,.form-card textarea:focus{border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(51,111,255,.08)}
.form-card textarea{height:120px;resize:vertical}
.form-card label{display:block;font-size:13px;color:#6B7280;margin-bottom:6px}
.form-card label i{color:#E64545;font-style:normal}
.form-tip{font-size:12px;color:#A0A6B2;margin-top:12px}
.promise-list{list-style:none;margin:0 0 6px;padding:0}
.promise-list li{display:flex;gap:12px;align-items:flex-start;padding:13px 0;border-bottom:1px dashed #E7ECF5}
.promise-list li:last-child{border-bottom:0}
.promise-list i{flex:0 0 auto;width:22px;height:22px;margin-top:2px;border-radius:50%;background:var(--blue-l);color:var(--blue);font-style:normal;font-size:12px;display:grid;place-items:center}
.promise-list b{display:block;font-size:15px;color:var(--ink);margin-bottom:3px}
.promise-list span{font-size:13px;color:#7A8190;line-height:1.75}
.form-submit{width:100%;background:var(--blue);color:#fff;border:0;padding:13px;border-radius:2px;font-size:15px;cursor:pointer;letter-spacing:2px;transition:.25s;margin-top:8px}
.form-submit:hover{background:var(--blue-d)}
.map-box{border:1px solid var(--line);border-radius:3px;height:100%;min-height:420px;background:linear-gradient(135deg,#EFF4FF,#F7F9FE);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;color:#8A93A6;text-align:center;padding:30px}
.map-box .pin{width:56px;height:56px;border-radius:50%;background:#fff;display:grid;place-items:center;color:var(--blue);box-shadow:0 8px 20px rgba(31,85,224,.16)}
.map-box .pin svg{width:26px;height:26px;fill:currentColor}
.map-box b{color:#3A4252;font-size:16px}
.map-box small{font-size:12.5px;line-height:1.9}

/* toast */
.toast{position:fixed;left:50%;top:24px;transform:translate(-50%,-20px);background:#222;color:#fff;font-size:14px;padding:10px 22px;border-radius:3px;z-index:200;opacity:0;pointer-events:none;transition:.3s}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* 入场动画（纯 CSS，不依赖 JS，保证内容始终可见） */
.reveal{animation:revealIn .55s ease both}
@keyframes revealIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.reveal{animation:none}}

/* ================= 响应式 ================= */
@media (max-width:1180px){
  .hero-media{width:380px}
  .hero-copy h1{font-size:36px}
  .grid-products{grid-template-columns:repeat(3,1fr)}
  .adv-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:980px){
  .nav{display:none;position:absolute;left:0;right:0;top:60px;background:var(--blue);flex-direction:column;gap:0;padding:6px 0 14px;box-shadow:0 14px 24px rgba(10,30,90,.2)}
  .nav.open{display:flex}
  .nav a{padding:12px 24px;width:100%;border-bottom:1px solid rgba(255,255,255,.12);font-size:15px}
  .nav a::after{display:none}
  .burger{display:block;margin-left:auto}
  .header-tel{display:none}
  .header .wrap{height:56px}
  .hero{height:auto;padding:44px 0 60px}
  .hero-slide{position:relative;display:none}
  .hero-slide.on{display:block}
  .hero-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .hero-copy{max-width:100%}
  .hero-copy h1{font-size:28px}
  .hero-copy p{font-size:14px;max-width:100%}
  .hero-media{width:100%}
  .hero-media .shot img{height:220px}
  .hero-media .tagline{left:0;bottom:-12px}
  .hero-arrow{display:none}
  .hero-dots{bottom:20px}
  .about{grid-template-columns:1fr}
  .about-media{min-height:260px}
  .reco{grid-template-columns:1fr}
  .prod-layout{grid-template-columns:1fr}
  .side-list{display:flex;flex-wrap:wrap;gap:8px;padding:14px}
  .side-list a{border:1px solid #E7ECF7;border-left:1px solid #E7ECF7;border-radius:2px;padding:6px 12px;font-size:13px}
  .side-list a span{display:none}
  .side-phone{display:none}
  .app-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .cta .wrap{flex-direction:column;align-items:flex-start;gap:24px;padding:36px 20px}
  .cta .cta-img{width:100%;height:160px}
  .f-grid{grid-template-columns:1fr 1fr;gap:26px}
  .f-grid > div + div{border-left:0;padding-left:0}
  .f-grid > div:nth-child(3){grid-column:1/-1;border-top:1px solid rgba(255,255,255,.18);padding-top:24px}
  .about-page{grid-template-columns:1fr;gap:26px}
  .contact-grid{grid-template-columns:repeat(2,1fr)}
  .contact-main{grid-template-columns:1fr}
  .mbar{display:flex}
  body{padding-bottom:56px}
  .topbar .tb-left span{font-size:11px}
  .topbar .tb-right a{display:none}
  .topbar .tb-right span{font-size:11px}
  .topbar .wrap{height:32px}
  .floatbar{bottom:74px;right:12px}
}
@media (max-width:640px){
  body{font-size:14px}
  .section{padding:38px 0}
  .sec-head h2{font-size:21px}
  .sec-head p{font-size:13px}
  .grid-products,.grid-products.cols-3{grid-template-columns:repeat(2,1fr);gap:12px}
  .p-thumb{height:150px;padding:12px}
  .p-body{padding:10px 10px 14px}
  .p-body h3{font-size:13px;height:40px}
  .p-body p{display:none}
  .badge-hot{font-size:11px;padding:2px 7px}
  .hero-copy h1{font-size:24px;line-height:1.35}
  .topbar .tb-left span{max-width:150px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
  .topbar .tb-right span{white-space:nowrap}
  .hero .eyebrow{font-size:11px}
  .stats .wrap{grid-template-columns:repeat(2,1fr)}
  .stats div{border-right:0;border-bottom:1px solid var(--line);padding:18px 8px}
  .stats b{font-size:26px}
  .adv-grid{grid-template-columns:1fr 1fr;gap:12px}
  .adv{padding:20px 14px}
  .adv .ic{width:46px;height:46px;margin-bottom:10px}
  .adv h4{font-size:14px}
  .adv p{font-size:12px}
  .app-grid{grid-template-columns:1fr;gap:12px}
  .app{height:140px;padding:18px}
  .f-grid{grid-template-columns:1fr}
  .f-title{font-size:19px}
  .f-grid > div + div{border-top:1px solid rgba(255,255,255,.18);padding-top:22px}
  .f-form .frow{flex-direction:column;gap:10px}
  .page-hero{height:130px}
  .page-hero h1{font-size:22px}
  .contact-grid{grid-template-columns:1fr 1fr;gap:12px}
  .ct{padding:18px 12px}
  .ct b{font-size:14px}
  .form-card{padding:20px}
  .form-row{grid-template-columns:1fr}
  .nitem{flex-direction:column;gap:12px;padding:16px}
  .nitem .nd{display:flex;align-items:baseline;gap:8px;border-right:0;padding-right:0;width:auto;text-align:left}
  .nitem .nd b{font-size:18px}
  .nitem .nd span{margin:0}
  .timeline{grid-template-columns:1fr 1fr}
  .toolbar{flex-direction:column;gap:8px;align-items:flex-start}
  .floatbar{display:none}
}