/* tz01 - 科技蓝 | 腾展科技风格企业官网模板（基于 www.tengzon.com 布局复刻） */
:root{
  --p:#0A66B8; --pd:#084E8F; --pl:#0B79D9; --hb:#EAF3FB; --fb:#0D2C46;
  --txt:#1C2B3A; --mut:#5F7285; --bd:#DDE8F2; --sbg:#F4F8FC;
}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:"Microsoft YaHei","PingFang SC","Hiragino Sans GB",Arial,sans-serif;color:var(--txt);font-size:15px;line-height:1.75;background:#fff}
a{color:var(--txt);text-decoration:none;transition:color .2s}
a:hover{color:var(--p)}
img{max-width:100%;display:block}
ul{list-style:none}
.tz-wrap{max-width:1200px;margin:0 auto;padding:0 18px}

/* ---------- header ---------- */
.tz-topbar{background:var(--pd);color:#dce9f5;font-size:12.5px}
.tz-topbar-in{display:flex;justify-content:space-between;align-items:center;height:34px}
.tz-topbar b{color:#fff;font-weight:600}
.tz-topbar .tz-tel{display:inline-flex;align-items:center;gap:6px}
.tz-nav{background:#fff;border-bottom:1px solid var(--bd);position:sticky;top:0;z-index:99}
.tz-nav-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.tz-logo{display:flex;align-items:center;gap:10px}
.tz-logo svg{width:44px;height:48px;flex:none}
.tz-logo-t b{display:block;font-size:20px;letter-spacing:1px;color:var(--txt);line-height:1.3}
.tz-logo-t small{display:block;font-size:11.5px;color:var(--mut);letter-spacing:2px}
.tz-menu{display:flex;align-items:center;gap:4px}
.tz-menu li a{display:block;padding:8px 16px;font-size:15.5px;border-radius:4px;position:relative}
.tz-menu li a:hover,.tz-menu li a.tz-on{color:var(--p);background:var(--hb)}
.tz-menu-chk,.tz-burger{display:none}
.tz-mnav-cta{display:inline-block;margin-left:12px;padding:9px 20px;background:var(--p);color:#fff!important;border-radius:4px;font-size:14px}
.tz-mnav-cta:hover{background:var(--pd)}

/* ---------- banner ---------- */
.tz-banner{position:relative;height:520px;overflow:hidden;background:var(--fb)}
.tz-slide{position:absolute;inset:0;opacity:0;animation:tzFade 18s infinite}
.tz-slide:nth-child(2){animation-delay:6s}
.tz-slide:nth-child(3){animation-delay:12s}
.tz-slide img{width:100%;height:100%;object-fit:cover}
.tz-slide::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(6,28,52,.62) 0%,rgba(6,28,52,.25) 55%,rgba(6,28,52,.05) 100%)}
@keyframes tzFade{0%{opacity:0}4%{opacity:1}33%{opacity:1}37%{opacity:0}100%{opacity:0}}
.tz-banner-txt{position:absolute;left:0;right:0;top:50%;transform:translateY(-50%);z-index:5}
.tz-banner-txt small{display:block;color:#bcd6ee;font-size:15px;letter-spacing:5px;margin-bottom:12px}
.tz-banner-txt h2{color:#fff;font-size:42px;letter-spacing:2px;margin-bottom:14px;text-shadow:0 2px 12px rgba(0,0,0,.35)}
.tz-banner-txt p{color:#dbe7f2;font-size:16px;max-width:560px;margin-bottom:26px}
.tz-banner-btn{display:inline-block;padding:12px 34px;background:var(--p);color:#fff;border-radius:4px;font-size:15px;letter-spacing:2px}
.tz-banner-btn:hover{background:var(--pl);color:#fff}

/* ---------- stats ---------- */
.tz-stats{background:var(--p);color:#fff}
.tz-stats-in{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;padding:26px 18px}
.tz-stat{text-align:center}
.tz-stat b{font-size:32px;font-weight:700;line-height:1.2}
.tz-stat b i{font-style:normal;font-size:15px;font-weight:400;margin-left:2px}
.tz-stat span{display:block;font-size:14px;color:#e3effa}

/* ---------- section ---------- */
.tz-sec{padding:64px 0}
.tz-sec.alt{background:var(--sbg)}
.tz-sec-hd{text-align:center;margin-bottom:44px}
.tz-sec-hd small{display:block;color:var(--p);font-size:13px;letter-spacing:4px;text-transform:uppercase;margin-bottom:6px}
.tz-sec-hd h2{font-size:30px;letter-spacing:2px;position:relative;display:inline-block;padding-bottom:14px}
.tz-sec-hd h2::after{content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;width:46px;height:3px;background:var(--p);border-radius:2px}
.tz-sec-hd p{color:var(--mut);margin-top:12px;font-size:14.5px}

/* ---------- about ---------- */
.tz-about{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center}
.tz-about-img{position:relative;border-radius:6px;overflow:hidden}
.tz-about-img img{width:100%;height:340px;object-fit:cover}
.tz-about-img::before{content:"";position:absolute;left:-14px;bottom:-14px;width:70%;height:70%;border:3px solid var(--p);border-radius:6px;z-index:-1}
.tz-about h3{font-size:24px;margin-bottom:16px;line-height:1.5}
.tz-about h3 em{font-style:normal;color:var(--p)}
.tz-about p{color:var(--mut);margin-bottom:14px;font-size:14.5px}
.tz-about-li{display:flex;gap:26px;margin:20px 0 26px;flex-wrap:wrap}
.tz-about-li span{display:inline-flex;align-items:center;gap:8px;color:var(--txt);font-size:14.5px}
.tz-about-li i{width:8px;height:8px;background:var(--p);border-radius:50%;display:inline-block}
.tz-btn{display:inline-block;padding:11px 30px;background:var(--p);color:#fff;border-radius:4px;font-size:14.5px;letter-spacing:1px}
.tz-btn:hover{background:var(--pd);color:#fff}
.tz-btn-line{display:inline-block;padding:10px 28px;border:1px solid var(--p);color:var(--p);border-radius:4px;font-size:14.5px;margin-left:12px}
.tz-btn-line:hover{background:var(--p);color:#fff}

/* ---------- solutions (栏目驱动六边形) ---------- */
.tz-sol{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.tz-sol-card{background:#fff;border:1px solid var(--bd);border-radius:8px;padding:34px 18px 28px;text-align:center;transition:.25s}
.tz-sol-card:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(10,60,110,.12);border-color:var(--p)}
.tz-hex{width:86px;height:96px;margin:0 auto 18px;display:flex;align-items:center;justify-content:center;clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);background:linear-gradient(160deg,var(--pl),var(--pd))}
.tz-hex b{color:#fff;font-size:34px;font-weight:700}
.tz-sol-card h4{font-size:16.5px;margin-bottom:8px}
.tz-sol-card p{font-size:13px;color:var(--mut);min-height:40px}
.tz-sol-card .tz-more{display:inline-block;margin-top:10px;color:var(--p);font-size:13.5px}

/* ---------- news ---------- */
.tz-news{display:grid;grid-template-columns:7fr 5fr;gap:36px}
.tz-news-list li{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:16px 4px;border-bottom:1px dashed var(--bd)}
.tz-news-list li:last-child{border-bottom:none}
.tz-news-list .t{flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;font-size:15.5px}
.tz-news-list .t::before{content:"";display:inline-block;width:6px;height:6px;background:var(--p);border-radius:50%;margin-right:12px;vertical-align:2px}
.tz-news-list time{color:var(--mut);font-size:13.5px;flex:none}
.tz-news-side{border-radius:8px;overflow:hidden;position:relative;min-height:300px}
.tz-news-side img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.tz-news-side .cap{position:absolute;left:0;right:0;bottom:0;padding:18px;background:linear-gradient(transparent,rgba(6,28,52,.75));color:#fff}
.tz-news-side .cap b{font-size:17px;letter-spacing:1px}

/* ---------- brands ---------- */
.tz-brand{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.tz-brand span{display:flex;align-items:center;justify-content:center;height:64px;background:#fff;border:1px solid var(--bd);border-radius:6px;color:var(--mut);font-size:15px;letter-spacing:1px;transition:.2s}
.tz-brand span:hover{color:var(--p);border-color:var(--p)}

/* ---------- cta ---------- */
.tz-cta{background:linear-gradient(120deg,var(--pd),var(--p));color:#fff;text-align:center;padding:52px 18px}
.tz-cta h3{font-size:26px;letter-spacing:2px;margin-bottom:10px}
.tz-cta p{color:#ddebfa;margin-bottom:24px}
.tz-cta .tz-btn{background:#fff;color:var(--p)}
.tz-cta .tz-btn:hover{background:var(--hb);color:var(--pd)}

/* ---------- footer ---------- */
.tz-ft{background:var(--fb);color:#9fb2c3;font-size:14px}
.tz-ft-in{display:grid;grid-template-columns:4fr 2fr 3fr;gap:40px;padding:52px 18px 38px}
.tz-ft h4{color:#fff;font-size:16.5px;margin-bottom:18px;letter-spacing:1px}
.tz-ft p{margin-bottom:10px;line-height:1.9}
.tz-ft a{color:#9fb2c3}
.tz-ft a:hover{color:#fff}
.tz-ft-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.tz-ft-logo b{color:#fff;font-size:19px}
.tz-ft-logo small{color:#7e93a7;font-size:11.5px;letter-spacing:2px}
.tz-ft li{margin-bottom:9px}
.tz-ft-btm{border-top:1px solid rgba(255,255,255,.09);padding:16px 0;text-align:center;font-size:13px;color:#7e93a7}

/* ---------- 内页公共 ---------- */
.tz-subhero{background:var(--hb);border-bottom:1px solid var(--bd);padding:44px 0;text-align:center}
.tz-subhero h1{font-size:26px;letter-spacing:2px;color:var(--txt)}
.tz-subhero small{color:var(--mut);letter-spacing:3px;font-size:12.5px}
.tz-bread{background:#fff;border-bottom:1px solid var(--bd);padding:14px 0;font-size:13.5px;color:var(--mut)}
.tz-bread a{color:var(--mut)}
.tz-bread a:hover{color:var(--p)}
.tz-layout{display:grid;grid-template-columns:8fr 4fr;gap:34px;padding:50px 0}
.tz-art li{display:flex;gap:20px;padding:20px;border:1px solid var(--bd);border-radius:8px;margin-bottom:18px;background:#fff;transition:.2s}
.tz-art li:hover{box-shadow:0 10px 24px rgba(10,60,110,.1);border-color:var(--p)}
.tz-art .pic{flex:none;width:200px;height:132px;border-radius:6px;overflow:hidden;background:var(--sbg)}
.tz-art .pic img{width:100%;height:100%;object-fit:cover}
.tz-art .pic .ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(150deg,var(--pl),var(--pd));color:#fff;font-size:26px;font-weight:700}
.tz-art .bd{flex:1;min-width:0}
.tz-art h3{font-size:17px;margin:4px 0 8px}
.tz-art p{color:var(--mut);font-size:13.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.tz-art .m{color:var(--mut);font-size:12.5px;margin-top:8px}
.tz-pager{margin-top:8px;text-align:center}
.tz-pager .page{display:inline-block;margin:0 3px;padding:7px 14px;border:1px solid var(--bd);border-radius:4px;color:var(--txt);font-size:14px}
.tz-pager .page:hover,.tz-pager .page.current{background:var(--p);border-color:var(--p);color:#fff}
.tz-side-box{border:1px solid var(--bd);border-radius:8px;background:#fff;margin-bottom:22px;overflow:hidden}
.tz-side-box h5{font-size:16px;padding:14px 18px;border-bottom:2px solid var(--p);letter-spacing:1px}
.tz-side-box ul{padding:10px 18px 16px}
.tz-side-box li{padding:8px 0;border-bottom:1px dashed var(--bd);font-size:14px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.tz-side-box li:last-child{border-bottom:none}
.tz-side-contact{background:linear-gradient(150deg,var(--pd),var(--p));color:#fff;border-radius:8px;padding:24px 20px}
.tz-side-contact b{font-size:17px;display:block;margin-bottom:8px}
.tz-side-contact .num{font-size:21px;font-weight:700;letter-spacing:1px;margin:6px 0 10px}
.tz-side-contact p{font-size:13px;color:#e3effa}

/* ---------- 详情页 ---------- */
.tz-detail{background:#fff;border:1px solid var(--bd);border-radius:8px;padding:36px 34px}
.tz-detail h1{font-size:25px;line-height:1.5;margin-bottom:14px}
.tz-detail .meta{color:var(--mut);font-size:13px;padding-bottom:16px;border-bottom:1px solid var(--bd);margin-bottom:24px;display:flex;gap:20px;flex-wrap:wrap}
.tz-detail .con{font-size:15.5px;line-height:2;color:#333f4d;word-break:break-word}
.tz-detail .con p{margin-bottom:14px}
.tz-detail .con img{margin:14px auto;border-radius:6px}
.tz-detail .con h2,.tz-detail .con h3{margin:22px 0 12px;font-size:19px;color:var(--txt)}
.tz-detail .con ul,.tz-detail .con ol{margin:0 0 14px 22px}
.tz-detail .con li{margin-bottom:6px}
.tz-back{margin-top:26px;padding-top:18px;border-top:1px solid var(--bd)}

/* ---------- 搜索/标签 ---------- */
.tz-searchbar{display:flex;gap:10px;max-width:640px;margin:0 auto 40px}
.tz-searchbar input{flex:1;height:48px;padding:0 18px;border:1px solid var(--bd);border-radius:4px;font-size:15px;outline:none}
.tz-searchbar input:focus{border-color:var(--p)}
.tz-searchbar button{width:120px;background:var(--p);color:#fff;border:none;border-radius:4px;font-size:15px;cursor:pointer}
.tz-searchbar button:hover{background:var(--pd)}
.tz-tags{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.tz-tags a{padding:9px 20px;background:var(--hb);color:var(--pd);border-radius:30px;font-size:14px}
.tz-tags a:hover{background:var(--p);color:#fff}

/* ---------- 404 ---------- */
.tz-404{text-align:center;padding:110px 18px}
.tz-404 b{font-size:96px;color:var(--p);display:block;line-height:1}
.tz-404 p{color:var(--mut);margin:18px 0 30px;font-size:16px}

/* ---------- 响应式 ---------- */
@media (max-width:960px){
  .tz-menu{position:fixed;top:0;right:-260px;width:250px;height:100vh;background:#fff;flex-direction:column;align-items:stretch;padding:70px 16px 20px;gap:2px;box-shadow:-8px 0 26px rgba(0,0,0,.12);transition:right .28s;z-index:98}
  .tz-menu-chk:checked ~ .tz-menu{right:0}
  .tz-menu li a{padding:12px 14px}
  .tz-burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;cursor:pointer;z-index:99;position:relative}
  .tz-burger span,.tz-burger span::before,.tz-burger span::after{content:"";display:block;width:24px;height:2px;background:var(--txt);position:relative;transition:.2s}
  .tz-burger span::before{position:absolute;top:-7px}
  .tz-burger span::after{position:absolute;top:7px}
  .tz-banner{height:340px}
  .tz-banner-txt h2{font-size:26px}
  .tz-stats-in{grid-template-columns:repeat(2,1fr)}
  .tz-about,.tz-news,.tz-layout{grid-template-columns:1fr}
  .tz-sol{grid-template-columns:repeat(2,1fr)}
  .tz-brand{grid-template-columns:repeat(3,1fr)}
  .tz-ft-in{grid-template-columns:1fr;gap:26px}
  .tz-art .pic{width:130px;height:96px}
  .tz-art .pic .ph{font-size:18px}
}