/* ============================================================
   极测测控 JCCK — 全站样式
   深色科技风 | 主色 #FF6B00 工业橙 | 辅色 #2E7DFF 数据蓝
   ============================================================ */
:root{
  --bg:#070B14; --bg2:#0C121E; --bg3:#111A2B; --card:#0B1120;
  --line:rgba(255,255,255,.10); --line2:rgba(255,255,255,.18);
  --txt:#E8EDF5; --txt2:#9AA8BE; --txt3:#5F6E85;
  --brand:#FF6B00; --brand-d:#E55F00; --brand2:#2E7DFF;
  /* 内容区宽度：当前 1400px（对齐无锡冠亚 cnzlj.com 观感）。
     想再宽改这一个数即可，推荐档位 1440 / 1520 / 1600；
     1440 在 1920 屏两侧留白约 240px，1600 更接近满宽。 */
  --maxw:1400px; --nav-h:76px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--txt);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;line-height:1.75;overflow-x:hidden;
  padding-top:var(--nav-h)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
ul{list-style:none}
.num{font-family:"DIN Alternate","Bahnschrift","Arial Narrow",Arial,sans-serif;font-variant-numeric:tabular-nums}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 40px}
.txt-o{color:var(--brand)}

/* ============ NAV ============ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s;
  background:rgba(7,11,20,.9);backdrop-filter:blur(18px);border-bottom:1px solid transparent}
.nav.on{border-bottom-color:var(--line);box-shadow:0 8px 30px rgba(0,0,0,.4)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h)}
.logo{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:700;letter-spacing:.5px;flex-shrink:0}
.logo i{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,var(--brand),#FFA040);
  display:grid;place-items:center;font-style:normal;color:#0A0E17;font-weight:800;font-size:17px;flex-shrink:0}
.logo small{display:block;font-size:9px;color:var(--txt3);font-weight:400;letter-spacing:2px;line-height:1.2}
.menu{display:flex;gap:32px;font-size:15px;color:var(--txt2)}
.menu a{position:relative;transition:.25s;white-space:nowrap}
.menu a:hover,.menu a.act{color:#fff}
.menu a::after{content:"";position:absolute;left:0;bottom:-6px;width:0;height:2px;background:var(--brand);transition:.3s}
.menu a:hover::after,.menu a.act::after{width:100%}
.nav .cta{background:var(--brand);color:#0A0E17;padding:10px 22px;border-radius:6px;font-weight:700;font-size:14px;transition:.25s;white-space:nowrap}
.nav .cta:hover{box-shadow:0 8px 26px rgba(255,107,0,.38);transform:translateY(-1px)}
.burger{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:8px;background:none;cursor:pointer;position:relative;flex-shrink:0}
.burger span{position:absolute;left:12px;right:12px;height:2px;background:var(--txt);transition:.3s}
.burger span:nth-child(1){top:14px}.burger span:nth-child(2){top:20px}.burger span:nth-child(3){top:26px}

/* ============ 通用区块 ============ */
section{padding:104px 0;position:relative}
.sec-head{max-width:780px;margin-bottom:54px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tag{font-size:12px;letter-spacing:3px;color:var(--brand);font-weight:700;margin-bottom:14px}
h1,h2,h3,h4{line-height:1.25}
h2{font-size:clamp(27px,3.6vw,44px);font-weight:800;letter-spacing:-.5px;margin-bottom:16px}
.sec-head p{color:var(--txt2);font-size:16px}
.rule{height:2px;background:linear-gradient(90deg,var(--brand),transparent);width:60px;margin:22px 0 0}
.sec-head.center .rule{margin-left:auto;margin-right:auto}
.band{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ============ 内页页头 ============ */
.phero{padding:76px 0 56px;background:
  radial-gradient(ellipse 70% 100% at 20% 0%,rgba(255,107,0,.12),transparent 60%),
  radial-gradient(ellipse 60% 90% at 90% 10%,rgba(46,125,255,.10),transparent 60%),var(--bg2);
  border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.phero::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:linear-gradient(180deg,#000,transparent 85%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 85%)}
.phero .wrap{position:relative;z-index:2}
.crumb{font-size:13px;color:var(--txt3);margin-bottom:18px}
.crumb a:hover{color:var(--brand)}
.crumb span{margin:0 8px;opacity:.5}
.phero h1{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.5px;margin-bottom:14px}
.phero .sub{color:var(--txt2);font-size:17px;max-width:700px}

/* ============ HERO（首页） ============ */
.hero{position:relative;min-height:calc(100vh - var(--nav-h));display:flex;align-items:center;overflow:hidden;padding:80px 0}
.hero-bg{position:absolute;inset:0;z-index:0}
.grid-bg{position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 50% 40%,#000 30%,transparent 78%)}
.glow{position:absolute;border-radius:50%;filter:blur(110px)}
.g1{width:640px;height:640px;background:#FF6B00;top:-180px;right:-140px;opacity:.22}
.g2{width:520px;height:520px;background:#2E7DFF;bottom:-200px;left:-120px;opacity:.2}
.scan{position:absolute;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--brand),transparent);
  animation:scan 7s linear infinite;opacity:.5}
@keyframes scan{0%{top:0}100%{top:100%}}
.hero .wrap{position:relative;z-index:2;width:100%}
.eyebrow{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--line);background:rgba(255,255,255,.03);
  padding:7px 16px;border-radius:100px;font-size:13px;color:var(--txt2);margin-bottom:28px}
.eyebrow b{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px var(--brand)}
.hero h1{font-size:clamp(38px,6.2vw,76px);font-weight:800;letter-spacing:-1.5px;margin-bottom:26px}
.lead{font-size:clamp(16px,1.6vw,19px);color:var(--txt2);max-width:640px;margin-bottom:38px}
.btns{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:60px}
.btn{display:inline-flex;align-items:center;gap:9px;padding:15px 32px;border-radius:7px;font-weight:700;font-size:15px;transition:.28s;border:none;cursor:pointer;font-family:inherit}
.btn-p{background:var(--brand);color:#0A0E17}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 12px 34px rgba(255,107,0,.4)}
.btn-s{border:1px solid var(--line2);color:#fff}
.btn-s:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.4)}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:12px;overflow:hidden;max-width:900px}
.hero-stats div{background:rgba(8,12,21,.75);padding:24px 22px}
.hero-stats .v{font-size:clamp(26px,3.4vw,38px);font-weight:800;color:#fff;line-height:1.1}
.hero-stats .v em{font-style:normal;font-size:.48em;color:var(--brand);margin-left:2px}
.hero-stats .k{font-size:13px;color:var(--txt3);margin-top:4px}

/* ============ 产品卡 ============ */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pc{position:relative;background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden;
  transition:.4s;display:flex;flex-direction:column}
.pc:hover{transform:translateY(-6px);border-color:rgba(255,107,0,.45);box-shadow:0 22px 50px rgba(0,0,0,.55)}
.pc .ph{height:200px;position:relative;overflow:hidden;background:linear-gradient(145deg,#141C2C,#0A1020);display:grid;place-items:center}
.pc .ph svg{width:74%;height:74%;opacity:.85;transition:.5s}
.pc:hover .ph svg{transform:scale(1.06)}
.pc .ph .no{position:absolute;top:15px;left:18px;font-size:12px;letter-spacing:2px;color:var(--txt3);font-weight:700}
.pc .ph .mask{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,14,23,.9));pointer-events:none}
.pc .ph .tagn{position:absolute;bottom:14px;left:18px;font-size:12px;color:var(--brand);
  border:1px solid rgba(255,107,0,.4);padding:3px 10px;border-radius:4px;background:rgba(255,107,0,.08);z-index:2}
.pc .bd{padding:24px;flex:1;display:flex;flex-direction:column}
.pc h3{font-size:20px;margin-bottom:10px;font-weight:700}
.pc .desc{font-size:14px;color:var(--txt2);flex:1}
.pc .spec{display:flex;gap:18px;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);flex-wrap:wrap}
.pc .spec div{font-size:11px;color:var(--txt3)}
.pc .spec b{display:block;font-size:16px;color:#fff;font-weight:700;margin-top:2px}
.pc .spec b i{font-style:normal;font-size:11px;color:var(--txt3);font-weight:400;margin-left:2px}
.pc .go{margin-top:16px;font-size:14px;color:var(--brand);font-weight:700;display:flex;align-items:center;gap:6px}
.pc .go span{transition:.3s}.pc:hover .go span{transform:translateX(5px)}

/* ============ 测控系统 ============ */
.soft-in{display:grid;grid-template-columns:1fr 1.12fr;gap:56px;align-items:center}
.soft-list{margin-top:30px;display:flex;flex-direction:column;gap:2px}
.soft-item{padding:18px 22px;border-left:2px solid var(--line);cursor:pointer;transition:.3s}
.soft-item.on,.soft-item:hover{border-left-color:var(--brand);background:rgba(255,107,0,.06)}
.soft-item h4{font-size:17px;margin-bottom:4px}
.soft-item p{font-size:14px;color:var(--txt2);display:none}
.soft-item.on p{display:block}
.dash{background:#0A1020;border:1px solid var(--line);border-radius:14px;padding:22px;box-shadow:0 30px 70px rgba(0,0,0,.5)}
.dash-bar{display:flex;align-items:center;gap:8px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:18px}
.dot{width:10px;height:10px;border-radius:50%}
.dash-bar .t{margin-left:8px;font-size:13px;color:var(--txt3)}
.dash-kpi{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:16px}
.dash-kpi div{background:rgba(255,255,255,.03);border:1px solid var(--line);border-radius:8px;padding:13px}
.dash-kpi b{display:block;font-size:23px;color:#fff}
.dash-kpi span{font-size:12px;color:var(--txt3)}
.chart{height:180px;width:100%}
.feat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:2px;margin-top:40px}
.feat{padding:26px;border:1px solid var(--line);background:var(--card);transition:.3s}
.feat:hover{border-color:rgba(255,107,0,.4);background:#0E1526}
.feat .fi{font-size:24px;margin-bottom:12px;color:var(--brand);font-weight:800}
.feat h4{font-size:17px;margin-bottom:8px}
.feat p{font-size:14px;color:var(--txt2)}

/* ============ 行业 ============ */
.ind-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ind{border:1px solid var(--line);border-radius:12px;padding:28px 18px;text-align:center;transition:.35s;background:var(--card)}
.ind:hover{border-color:var(--brand);transform:translateY(-4px)}
.ind .ico{width:46px;height:46px;margin:0 auto 14px;border-radius:10px;background:rgba(255,107,0,.1);
  display:grid;place-items:center;color:var(--brand);font-size:19px;font-weight:700}
.ind h4{font-size:15px;font-weight:600}

/* ============ 流程 ============ */
.proc{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:20px}
.proc>div{padding:0 26px;position:relative}
.proc>div:first-child{padding-left:0}
.proc .n{font-size:50px;font-weight:800;color:rgba(255,107,0,.18);line-height:1;margin-bottom:10px}
.proc h4{font-size:17px;margin-bottom:8px}
.proc p{font-size:14px;color:var(--txt2)}

/* ============ 新闻 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.nc{background:var(--card);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:.35s;cursor:pointer;display:flex;flex-direction:column}
.nc:hover{border-color:rgba(255,107,0,.4);transform:translateY(-4px)}
.nc .ph{aspect-ratio:16/9;background:linear-gradient(135deg,#162033,#0B1220);display:grid;place-items:center;color:var(--txt3);font-size:12px;position:relative;overflow:hidden}
/* 封面图：锁 16:9，object-fit:cover 保证任何屏宽下比例恒定、不留白 */
.nc .ph img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;z-index:1}
.nc .ph b{position:absolute;top:14px;left:16px;font-size:11px;color:var(--brand);border:1px solid rgba(255,107,0,.35);
  padding:2px 9px;border-radius:3px;background:rgba(255,107,0,.08);z-index:2}
.nc .bd{padding:22px;flex:1;display:flex;flex-direction:column}
.nc .d{font-size:12px;color:var(--txt3);margin-bottom:8px}
.nc h4{font-size:16px;line-height:1.6;margin-bottom:10px}
.nc p{font-size:13px;color:var(--txt2);flex:1}
.nc .more{font-size:13px;color:var(--brand);font-weight:700;margin-top:12px}

/* ============ CTA ============ */
.cta-band{background:linear-gradient(120deg,#161F32,#0A1020);border:1px solid var(--line);
  border-radius:18px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:36px;flex-wrap:wrap}
.cta-band h3{font-size:clamp(23px,3vw,34px);font-weight:800;margin-bottom:8px}
.cta-band p{color:var(--txt2)}

/* ============ 详情页 ============ */
.detail{display:grid;grid-template-columns:1.15fr .85fr;gap:52px;align-items:start}
.gallery{display:flex;flex-direction:column;gap:14px}
.shot{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--line);
  background:linear-gradient(145deg,#141C2C,#0A1020);aspect-ratio:4/3;display:grid;place-items:center;padding:0}
.shot .tip{display:none}
.shot img{position:relative;z-index:2;width:100%;height:100%;object-fit:contain}
.shot.sm{aspect-ratio:1/1}
.shots{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-start}
.shots .shot{flex:1 1 0;min-width:0}
.shots .shot:only-child{flex:0 1 340px}
.d-meta .badge-cat{display:inline-block;font-size:12px;color:var(--brand);border:1px solid rgba(255,107,0,.4);
  padding:4px 12px;border-radius:4px;background:rgba(255,107,0,.08);margin-bottom:16px}
.d-meta h1{font-size:clamp(28px,3.4vw,42px);font-weight:800;margin-bottom:8px}
.d-meta .model{color:var(--txt3);font-size:14px;margin-bottom:18px;letter-spacing:1px}
.d-meta .desc{color:var(--txt2);font-size:16px;margin-bottom:26px}
.spec-table{width:100%;border-collapse:collapse;margin-bottom:28px}
.spec-table td,.spec-table th{border-bottom:1px solid var(--line);padding:12px 8px;font-size:14px;text-align:left}
.spec-table th{color:var(--txt3);font-weight:400;width:38%}
.spec-table td{color:#fff;font-weight:600}
.tabs{display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:26px;flex-wrap:wrap}
.tabs button{background:none;border:none;color:var(--txt2);padding:12px 20px;font-size:15px;cursor:pointer;
  border-bottom:2px solid transparent;transition:.25s;font-family:inherit;font-weight:600}
.tabs button.on,.tabs button:hover{color:#fff;border-bottom-color:var(--brand)}
.tabp{display:none;font-size:15px;color:var(--txt2)}
.tabp.on{display:block}
.tabp ul{display:flex;flex-direction:column;gap:12px}
.tabp li{padding-left:20px;position:relative}
.tabp li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.side-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;position:sticky;top:96px}
.side-card h4{font-size:18px;margin-bottom:6px}
.side-card .sc-sub{font-size:13px;color:var(--txt3);margin-bottom:20px}
.side-card .tel{font-size:24px;font-weight:800;color:var(--brand);margin-bottom:6px;display:block}
.side-card .line{font-size:14px;color:var(--txt2);margin-bottom:4px}
.side-card hr{border:none;border-top:1px solid var(--line);margin:20px 0}
.other-list{display:flex;flex-direction:column;gap:2px}
.other-list a{padding:11px 14px;border-left:2px solid var(--line);font-size:14px;color:var(--txt2);transition:.25s}
.other-list a:hover{border-left-color:var(--brand);background:rgba(255,107,0,.06);color:#fff}
.other-list a.on{border-left-color:var(--brand);color:var(--brand);font-weight:700}

/* ============ 关于我们 ============ */
.about-2{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.about-2 p{color:var(--txt2);margin-bottom:16px;font-size:15px}
.stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}
.stat-row div{background:var(--card);padding:28px 20px;text-align:center}
.stat-row b{display:block;font-size:32px;color:#fff;font-weight:800;line-height:1.2}
.stat-row b em{font-style:normal;font-size:.5em;color:var(--brand);margin-left:2px}
.stat-row span{font-size:13px;color:var(--txt3)}
.cert-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.cert{border:1px solid var(--line);border-radius:10px;padding:22px;text-align:center;background:var(--card);font-size:14px;color:var(--txt2)}
.cert .ci{font-size:26px;margin-bottom:10px;opacity:.8}
.timeline{position:relative;padding-left:30px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--brand),rgba(255,107,0,.1))}
.timeline div{position:relative;padding-bottom:28px}
.timeline div::before{content:"";position:absolute;left:-30px;top:7px;width:14px;height:14px;border-radius:50%;
  background:var(--bg);border:2px solid var(--brand)}
.timeline .yr{font-size:15px;font-weight:800;color:var(--brand);margin-bottom:4px}
.timeline p{font-size:14px;color:var(--txt2)}
.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.why{border:1px solid var(--line);border-radius:12px;padding:28px;background:var(--card);transition:.3s}
.why:hover{border-color:rgba(255,107,0,.4);transform:translateY(-4px)}
.why .wn{font-size:13px;letter-spacing:2px;color:var(--brand);font-weight:700;margin-bottom:10px}
.why h4{font-size:18px;margin-bottom:10px}
.why p{font-size:14px;color:var(--txt2)}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:start}
.info-list{display:flex;flex-direction:column;gap:2px;margin-bottom:26px}
.info-item{padding:18px 20px;border-left:2px solid var(--line);transition:.3s}
.info-item:hover{border-left-color:var(--brand);background:rgba(255,107,0,.05)}
.info-item .k{font-size:12px;color:var(--txt3);letter-spacing:1px;margin-bottom:4px}
.info-item .v{font-size:17px;color:#fff;font-weight:600}
.map-box{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:var(--card);
  min-height:220px;height:auto;display:grid;place-items:center;color:var(--txt3);font-size:13px;text-align:center;padding:20px}
.form{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:32px}
.form h3{font-size:22px;margin-bottom:6px}
.form .fs{font-size:14px;color:var(--txt3);margin-bottom:24px}
.form label{display:block;font-size:13px;color:var(--txt2);margin-bottom:7px}
.form input,.form textarea,.form select{width:100%;background:#070B14;border:1px solid var(--line);border-radius:8px;
  padding:12px 14px;color:#fff;font-size:14px;font-family:inherit;margin-bottom:16px;transition:.25s}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(255,107,0,.12)}
.form textarea{min-height:110px;resize:vertical}
.form .row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form button{width:100%;justify-content:center}
.form .note{font-size:12px;color:var(--txt3);text-align:center;margin-top:14px}

/* ============ FOOTER ============ */
footer{background:#050810;border-top:1px solid var(--line);padding:64px 0 28px}
.f-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:36px;border-bottom:1px solid var(--line)}
.f-grid h5{font-size:15px;margin-bottom:16px;color:#fff}
.f-grid li,.f-grid p{font-size:14px;color:var(--txt2);line-height:1.9}
.f-grid li a:hover{color:var(--brand)}
.f-contact{font-size:16px;color:var(--brand);font-weight:800;margin-bottom:6px;letter-spacing:.5px}
.f-bot{padding-top:24px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--txt3)}
.f-bot a:hover{color:var(--brand)}

/* ============ 悬浮 ============ */
.float{position:fixed;right:20px;bottom:24px;z-index:90;display:flex;flex-direction:column;gap:10px}
.float a{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;font-size:18px;
  background:var(--bg2);border:1px solid var(--line);box-shadow:0 8px 24px rgba(0,0,0,.5);transition:.3s}
.float a:hover{transform:translateY(-3px);border-color:var(--brand)}
.float .tel{background:var(--brand);color:#0A0E17;font-weight:700}

/* ============ 动效 ============ */
.rv{opacity:0;transform:translateY(26px);transition:.75s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
.ph-tip{position:absolute;bottom:10px;right:12px;font-size:11px;color:rgba(255,255,255,.28);
  background:rgba(0,0,0,.4);padding:2px 8px;border-radius:4px;z-index:3}

@media(max-width:1080px){
  .prod-grid,.news-grid,.why-grid{grid-template-columns:repeat(2,1fr)}
  .ind-grid{grid-template-columns:repeat(3,1fr)}
  .cert-grid{grid-template-columns:repeat(2,1fr)}
  .soft-in,.about-2,.detail,.contact-grid{grid-template-columns:1fr;gap:40px}
  .side-card{position:static}
  .proc{grid-template-columns:repeat(2,1fr);gap:32px 0}
  .feat-list{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  .wrap{padding:0 20px}
  .menu{position:fixed;top:var(--nav-h);left:0;right:0;background:rgba(7,11,20,.98);flex-direction:column;
    gap:0;padding:10px 20px 20px;transform:translateY(-12px);opacity:0;pointer-events:none;transition:.3s;
    border-bottom:1px solid var(--line);max-height:calc(100vh - var(--nav-h));overflow-y:auto}
  .menu.open{transform:none;opacity:1;pointer-events:auto}
  .menu a{padding:14px 0;border-bottom:1px solid rgba(255,255,255,.06)}
  .menu a::after{display:none}
  .burger{display:block}
  .nav .cta{display:none}
  section{padding:66px 0}
  .hero{padding:56px 0;min-height:auto}
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .prod-grid,.news-grid,.ind-grid,.why-grid,.proc,.cert-grid{grid-template-columns:1fr}
  .stat-row{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:34px 22px}
  .f-grid{grid-template-columns:1fr;gap:28px}
  .form{padding:22px}
  .form .row2{grid-template-columns:1fr}
  .shots{flex-direction:column;align-items:center}
  .shots .shot{flex:1 1 auto;width:100%;max-width:100%}

  /* 移动端 LOGO 适度缩小，避免挤占导航 */
  :root{--nav-h:72px}
  .logo img{height:44px !important}
}

/* ============ 新闻列表（可展开） ============ */
.nlist{border-top:1px solid var(--line)}
.ni{border-bottom:1px solid var(--line)}
.ni summary{cursor:pointer;list-style:none;padding:26px 0;display:grid;grid-template-columns:120px 1fr auto;gap:24px;align-items:baseline;transition:.3s}
.ni summary::-webkit-details-marker{display:none}
.ni summary:hover .nt{color:var(--brand)}
.ni .nd{font-size:13px;color:var(--txt3);letter-spacing:1px}
.ni .nc2{font-size:11px;color:var(--brand);border:1px solid rgba(255,107,0,.35);padding:2px 9px;border-radius:3px;background:rgba(255,107,0,.08);display:inline-block;margin-bottom:6px}
.ni .nt{font-size:19px;font-weight:700;transition:.25s;line-height:1.5}
.ni .nx{font-size:14px;color:var(--txt2);margin-top:6px}
.ni .narr{font-size:13px;color:var(--brand);white-space:nowrap}
.ni[open] .narr::after{content:" ▲"}
.ni:not([open]) .narr::after{content:" ▼"}
.ni .nbody{padding:0 0 30px 144px;font-size:15px;color:var(--txt2);max-width:820px}
.ni .nbody p{margin-bottom:14px}
.ni .nbody h5{color:#fff;font-size:16px;margin:20px 0 8px}
.ni .nbody ul{display:flex;flex-direction:column;gap:8px;margin:12px 0}
.ni .nbody li{padding-left:18px;position:relative}
.ni .nbody li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--brand)}

/* ============ 选型指引 ============ */
.help-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.help{border:1px solid var(--line);border-radius:12px;padding:28px;background:var(--card)}
.help .hn{font-size:22px;font-weight:800;color:var(--brand);margin-bottom:12px}
.help h4{font-size:18px;margin-bottom:10px}
.help p{font-size:14px;color:var(--txt2)}

/* ============ 404 ============ */
.nf{min-height:56vh;display:grid;place-items:center;text-align:center;padding:80px 0}
.nf .code{font-size:110px;font-weight:800;color:rgba(255,107,0,.2);line-height:1}
.nf h1{font-size:28px;margin:10px 0 12px}
.nf p{color:var(--txt2);margin-bottom:28px}

@media(max-width:760px){
  .ni summary{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .ni .nd{font-size:12px}
  .ni .nt{font-size:17px}
  .ni .nbody{padding-left:0}
  .help-grid{grid-template-columns:1fr}
  .nf .code{font-size:74px}
}

/* ============ 合作伙伴 LOGO 网格 ============ */
.partner-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:18px;margin-top:32px}
.partner-grid figure{margin:0;background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:10px;aspect-ratio:4/3;display:grid;place-items:center;padding:14px;transition:.3s}
.partner-grid figure:hover{background:rgba(255,107,0,.06);border-color:rgba(255,107,0,.4);transform:translateY(-3px)}
.partner-grid figure img{max-width:100%;max-height:100%;object-fit:contain;filter:brightness(1.15) saturate(.9);opacity:.92}
@media(max-width:980px){.partner-grid{grid-template-columns:repeat(4,1fr)}}
@media(max-width:560px){.partner-grid{grid-template-columns:repeat(2,1fr)}}


/* ============ 页脚公司信息（LOGO 下方） ============ */
.f-company{margin-top:14px}
.f-company .f-cn{font-size:15px;font-weight:700;color:#fff;line-height:1.6}
.f-company .f-en{font-size:11px;letter-spacing:1.5px;color:var(--brand);margin-top:2px;text-transform:uppercase}
.f-company .f-desc{font-size:13px;color:var(--txt2);margin:10px 0 14px;line-height:1.8;max-width:400px}
.f-company .f-info{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:7px}
.f-company .f-info li{font-size:13px;color:var(--txt2);line-height:1.7;padding-left:16px;position:relative}
.f-company .f-info li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.8}
.f-company .f-info a{color:var(--txt2);transition:.25s}
.f-company .f-info a:hover{color:var(--brand)}
@media(max-width:760px){
  .f-company .f-desc{max-width:100%}
}