/* ===== GTI.ARMY 全站样式 / GLOBAL STYLES ===== */
:root{
  --bg:#f7f5f1; --bg2:#ffffff; --ink:#1d1c1a; --ink2:#55524c;
  --navy:#17324e; --navy2:#0f2438; --acc:#b05c1e; --acc2:#8f4a17;
  --line:#e3ded5; --line2:#d3ccc0;
  --font:"Helvetica Neue",Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
  --cond:"Arial Narrow","Helvetica Neue Condensed",Helvetica,Arial,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--ink);line-height:1.65;font-size:15px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--cond);font-weight:700;letter-spacing:.02em;color:var(--navy)}
.en{display:block}.zh{display:block;color:var(--ink2)}
/* 卖点文字：细线引导，绝不做成按钮 */
.feat{border-left:2px solid var(--acc);padding-left:10px;margin:10px 0}

/* ---------- 顶栏 ---------- */
.topbar{background:var(--navy2);color:#cfd8e0;font-size:12px}
.topbar .wrap{display:flex;justify-content:space-between;align-items:center;height:34px}
.topbar a{color:#fff;margin-left:18px;opacity:.85}.topbar a:hover{opacity:1}
header.site{background:var(--bg2);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:200;box-shadow:0 1px 8px rgba(20,30,40,.05)}
header.site .wrap{display:flex;align-items:center;height:72px;gap:28px}
.brand{display:flex;align-items:center;gap:12px;flex:none}
.brand img{height:44px;width:auto}
.brand .t1{font-family:var(--cond);font-weight:900;font-size:20px;letter-spacing:.12em;color:var(--navy);line-height:1.1}
.brand .t2{font-size:11px;color:var(--ink2);letter-spacing:.06em}
nav.main{flex:1;display:flex;justify-content:center;gap:6px}
nav.main a{padding:10px 16px;font-size:14px;color:var(--ink);border-bottom:2px solid transparent;white-space:nowrap}
nav.main a:hover{color:var(--navy)}
nav.main a.on{color:var(--navy);border-bottom-color:var(--acc);font-weight:600}
nav.main a .zh{font-size:11px;color:var(--ink2);font-weight:400}
nav.main a.on .zh{color:var(--navy)}
.hdr-act{display:flex;align-items:center;gap:10px;flex:none}
.s-btn{display:flex;align-items:center;gap:8px;border:1px solid var(--line2);background:var(--bg);padding:8px 14px;border-radius:2px;cursor:pointer;font-size:13px;color:var(--ink2)}
.s-btn:hover{border-color:var(--navy);color:var(--navy)}
.s-btn svg{flex:none}
.cta-mini{background:var(--acc);color:#fff;padding:9px 16px;font-size:13px;font-weight:600;letter-spacing:.03em;border-radius:2px}
.cta-mini:hover{background:var(--acc2)}
.burger{display:none;background:none;border:0;cursor:pointer;padding:8px}
.burger span{display:block;width:22px;height:2px;background:var(--navy);margin:5px 0}

/* ---------- 搜索浮层 ---------- */
.s-overlay{display:none;position:fixed;inset:0;background:rgba(15,25,35,.55);z-index:400}
.s-overlay.open{display:block}
.s-panel{max-width:680px;margin:90px auto 0;background:#fff;border-radius:4px;overflow:hidden;box-shadow:0 20px 60px rgba(0,0,0,.3)}
.s-input-row{display:flex;align-items:center;border-bottom:2px solid var(--navy)}
.s-input-row svg{margin:0 16px;flex:none}
#sInput{flex:1;border:0;outline:0;font-size:17px;padding:18px 0;background:transparent;font-family:var(--font)}
.s-close{padding:18px;cursor:pointer;color:var(--ink2);font-size:13px;flex:none}
.s-close:hover{color:var(--ink)}
.s-hint{padding:8px 18px;font-size:12px;color:var(--ink2);border-bottom:1px solid var(--line)}
#sResults{max-height:56vh;overflow:auto}
.s-item{display:flex;gap:14px;padding:12px 18px;border-bottom:1px solid var(--line);cursor:pointer;align-items:center}
.s-item:hover{background:var(--bg)}
.s-item img{width:56px;height:42px;object-fit:cover;background:#fff;border:1px solid var(--line)}
.s-item .si-t{font-size:14px;font-weight:600;color:var(--navy)}
.s-item .si-z{font-size:12px;color:var(--ink2)}
.s-item .si-l{margin-left:auto;font-size:11px;color:var(--acc);white-space:nowrap}
.s-none{padding:26px 18px;color:var(--ink2);font-size:14px;text-align:center}

/* ---------- Hero ---------- */
.hero{position:relative;background:var(--navy2);color:#fff;min-height:520px;display:flex;align-items:center;overflow:hidden}
.hero video,.hero img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42}
.hero .wrap{position:relative;z-index:2;padding:80px 24px}
.hero .kick{font-size:13px;letter-spacing:.3em;color:#e9b98a;text-transform:uppercase;margin-bottom:14px}
.hero h1{color:#fff;font-size:clamp(30px,4.6vw,52px);line-height:1.15;max-width:16em}
.hero .sub{margin-top:16px;max-width:38em;color:#d8dee4;font-size:16px}
.hero .zh-sub{margin-top:8px;color:#a9b6c2;font-size:14px}
.hero .acts{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap}
.btn{display:inline-block;padding:13px 28px;font-size:14px;font-weight:600;letter-spacing:.04em;border-radius:2px}
.btn-p{background:var(--acc);color:#fff}.btn-p:hover{background:var(--acc2)}
.btn-g{border:1px solid rgba(255,255,255,.5);color:#fff}.btn-g:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.hero-stats{position:relative;z-index:2;display:flex;gap:0;border-top:1px solid rgba(255,255,255,.18);background:rgba(15,25,35,.5);backdrop-filter:blur(4px)}
.hero-stats .wrap{display:flex;flex-wrap:wrap}
.hstat{flex:1;min-width:150px;padding:20px 24px;border-left:1px solid rgba(255,255,255,.14)}
.hstat:first-child{border-left:0}
.hstat b{font-family:var(--cond);font-size:28px;color:#fff}
.hstat span{display:block;font-size:12px;color:#a9b6c2;margin-top:2px}

/* ---------- 区块骨架 ---------- */
section.block{padding:72px 0}
section.block.alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.b-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:38px;flex-wrap:wrap}
.b-head .k{font-size:12px;letter-spacing:.28em;color:var(--acc);text-transform:uppercase;margin-bottom:8px}
.b-head h2{font-size:clamp(24px,3vw,34px)}
.b-head .zh-sub{color:var(--ink2);margin-top:4px;font-size:14px}
.b-head a.more{font-size:13px;color:var(--navy);border-bottom:1px solid var(--navy);padding-bottom:2px;white-space:nowrap}
.b-head a.more:hover{color:var(--acc);border-color:var(--acc)}

/* ---------- 旗舰产品 ---------- */
.flag-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.flag-card{background:var(--bg2);border:1px solid var(--line);position:relative;transition:box-shadow .25s,transform .25s}
.flag-card:hover{box-shadow:0 14px 34px rgba(20,30,40,.12);transform:translateY(-4px)}
.flag-card .fc-tag{position:absolute;top:12px;left:12px;background:var(--acc);color:#fff;font-size:11px;padding:3px 10px;letter-spacing:.12em;z-index:2}
.flag-card .fc-img{background:#fff;border-bottom:1px solid var(--line);height:190px;display:flex;align-items:center;justify-content:center;padding:16px}
.flag-card .fc-img img{max-height:100%;object-fit:contain}
.flag-card .fc-body{padding:18px 18px 20px}
.flag-card h3{font-size:17px}
.flag-card .fc-zh{font-size:13px;color:var(--ink2);margin-top:2px}
.flag-card .fc-de{font-size:13px;color:var(--ink2);margin-top:10px}
.flag-card .fc-link{margin-top:14px;font-size:13px;font-weight:600;color:var(--navy)}
.flag-card:hover .fc-link{color:var(--acc)}

/* ---------- 产品线网格 ---------- */
.line-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.line-card{background:var(--bg2);border:1px solid var(--line);overflow:hidden;transition:box-shadow .25s}
.line-card:hover{box-shadow:0 12px 30px rgba(20,30,40,.1)}
.line-card .lc-img{height:170px;background:#fff;display:flex;align-items:center;justify-content:center;border-bottom:1px solid var(--line);padding:14px}
.line-card .lc-img img{max-height:100%;object-fit:contain}
.line-card .lc-body{padding:18px}
.line-card h3{font-size:16px;display:flex;justify-content:space-between;align-items:baseline}
.line-card h3 .n{font-size:11px;color:var(--acc);letter-spacing:.1em}
.line-card .lc-zh{font-size:13px;color:var(--ink2)}
.line-card .lc-de{font-size:13px;color:var(--ink2);margin-top:8px}

/* ---------- 视频区 ---------- */
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.v-card{background:var(--navy2);border:1px solid var(--line);overflow:hidden}
.v-card video{width:100%;display:block;aspect-ratio:16/9;background:#000}
.v-card .v-body{padding:16px 18px;background:var(--bg2)}
.v-card h3{font-size:15px}
.v-card .v-zh{font-size:12px;color:var(--ink2)}

/* ---------- 方案卡 ---------- */
.sol-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.sol-card{background:var(--bg2);border:1px solid var(--line);display:flex;flex-direction:column;transition:box-shadow .25s}
.sol-card:hover{box-shadow:0 12px 30px rgba(20,30,40,.1)}
.sol-card .sc-img{height:170px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;padding:14px}
.sol-card .sc-img img{max-height:100%;object-fit:contain}
.sol-card .sc-body{padding:20px;flex:1;display:flex;flex-direction:column}
.sol-card .sc-no{font-family:var(--cond);font-size:12px;letter-spacing:.2em;color:var(--acc)}
.sol-card h3{font-size:18px;margin-top:6px}
.sol-card .sc-zh{font-size:13px;color:var(--ink2)}
.sol-card .sc-de{font-size:13.5px;color:var(--ink2);margin:12px 0;flex:1}
.sol-card .sc-lines{font-size:12px;color:var(--navy);border-top:1px dashed var(--line2);padding-top:12px}
.sol-card .sc-lines b{color:var(--acc)}

/* ---------- 产品页 ---------- */
.page-head{background:var(--navy2);color:#fff;padding:56px 0 48px}
.page-head .k{font-size:12px;letter-spacing:.28em;color:#e9b98a;text-transform:uppercase}
.page-head h1{color:#fff;font-size:clamp(28px,3.6vw,40px);margin-top:8px}
.page-head .zh-sub{color:#a9b6c2;margin-top:6px}
.p-filter{background:var(--bg2);border-bottom:1px solid var(--line);position:sticky;top:72px;z-index:100}
.p-filter .wrap{display:flex;gap:6px;overflow-x:auto;padding:12px 24px;align-items:center}
.pf-tab{flex:none;padding:8px 15px;font-size:13px;color:var(--ink2);border:1px solid transparent;border-radius:2px;cursor:pointer;white-space:nowrap;background:none;font-family:var(--font)}
.pf-tab:hover{color:var(--navy)}
.pf-tab.on{background:var(--navy);color:#fff}
.pf-count{margin-left:auto;font-size:12px;color:var(--ink2);flex:none}
.p-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.p-card{background:var(--bg2);border:1px solid var(--line);cursor:pointer;transition:box-shadow .25s,transform .25s}
.p-card:hover{box-shadow:0 10px 26px rgba(20,30,40,.1);transform:translateY(-3px)}
.p-card .pc-img{height:150px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:center;padding:12px}
.p-card .pc-img img{max-height:100%;object-fit:contain}
.p-card .pc-body{padding:14px 16px}
.p-card .pc-line{font-size:10.5px;letter-spacing:.14em;color:var(--acc);text-transform:uppercase}
.p-card h3{font-size:14.5px;margin-top:4px;line-height:1.35}
.p-card .pc-zh{font-size:12px;color:var(--ink2)}
.group-head{grid-column:1/-1;margin-top:26px;padding-bottom:8px;border-bottom:2px solid var(--navy);display:flex;align-items:baseline;gap:12px}
.group-head:first-child{margin-top:0}
.group-head h2{font-size:19px}
.group-head .g-zh{font-size:13px;color:var(--ink2)}
.group-head .g-n{margin-left:auto;font-size:12px;color:var(--ink2)}

/* ---------- 产品详情弹窗 ---------- */
.p-modal{display:none;position:fixed;inset:0;background:rgba(15,25,35,.6);z-index:500;overflow:auto}
.p-modal.open{display:block}
.pm-box{max-width:860px;margin:60px auto;background:#fff;border-radius:4px;overflow:hidden;position:relative}
.pm-close{position:absolute;top:0;right:0;padding:14px 18px;font-size:20px;cursor:pointer;color:var(--ink2);background:none;border:0;z-index:2}
.pm-close:hover{color:var(--ink)}
.pm-grid{display:grid;grid-template-columns:1fr 1.1fr}
.pm-img{background:#fff;display:flex;align-items:center;justify-content:center;padding:36px;border-right:1px solid var(--line);min-height:320px}
.pm-img img{max-height:340px;object-fit:contain}
.pm-body{padding:32px}
.pm-body .pc-line{font-size:11px;letter-spacing:.14em;color:var(--acc);text-transform:uppercase}
.pm-body h2{font-size:23px;margin-top:6px}
.pm-body .pm-zh{font-size:15px;color:var(--ink2);margin-top:2px}
.pm-body .pm-de{font-size:14.5px;color:var(--ink);margin-top:16px}
.pm-body .pm-dz{font-size:13.5px;color:var(--ink2);margin-top:10px;border-top:1px dashed var(--line2);padding-top:12px}
.pm-body .pm-tags{margin-top:14px;font-size:12px;color:var(--ink2)}
.pm-acts{margin-top:22px;display:flex;gap:12px}

/* ---------- 方案页 ---------- */
.sol-sec{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:56px 0;border-bottom:1px solid var(--line)}
.sol-sec:last-child{border-bottom:0}
.sol-sec:nth-child(even) .ss-media{order:2}
.ss-media{background:#fff;border:1px solid var(--line);padding:18px;display:flex;align-items:center;justify-content:center}
.ss-media img{max-height:340px;object-fit:contain}
.ss-media video{width:100%;aspect-ratio:16/9;background:#000}
.ss-body .sc-no{font-family:var(--cond);font-size:13px;letter-spacing:.22em;color:var(--acc)}
.ss-body h2{font-size:clamp(22px,2.6vw,30px);margin-top:8px}
.ss-body .ss-zh{font-size:16px;color:var(--ink2);margin-top:2px}
.ss-body .ss-de{font-size:15px;margin-top:16px}
.ss-body .ss-dz{font-size:14px;color:var(--ink2);margin-top:10px}
.ss-body .sc-lines{font-size:13px;color:var(--navy);border-top:1px dashed var(--line2);padding-top:14px;margin-top:18px}
.ss-body .sc-lines b{color:var(--acc)}
.ss-acts{margin-top:20px;display:flex;gap:12px;flex-wrap:wrap}
.btn-o{display:inline-block;padding:11px 22px;font-size:13px;font-weight:600;border:1px solid var(--navy);color:var(--navy);border-radius:2px}
.btn-o:hover{background:var(--navy);color:#fff}

/* ---------- 关于页 ---------- */
.about-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:start}
.about-txt h2{font-size:clamp(22px,2.8vw,30px);margin:26px 0 12px}
.about-txt h2:first-child{margin-top:0}
.about-txt p{font-size:15px;margin-bottom:12px}
.about-txt .zhp{color:var(--ink2);font-size:14px}
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.trust-card{background:var(--bg2);border:1px solid var(--line);padding:22px}
.trust-card .tc-n{font-family:var(--cond);font-size:26px;color:var(--acc);font-weight:700}
.trust-card h3{font-size:15px;margin:8px 0 6px}
.trust-card p{font-size:13px;color:var(--ink2)}

/* ---------- 联系页 ---------- */
.qr-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.qr-card{background:var(--bg2);border:1px solid var(--line);padding:28px;text-align:center}
.qr-card img{width:190px;height:190px;margin:0 auto;border:1px solid var(--line)}
.qr-card h3{font-size:16px;margin-top:16px}
.qr-card p{font-size:13px;color:var(--ink2);margin-top:4px}
.mail-band{background:var(--navy2);color:#fff;text-align:center;padding:48px 24px;border-radius:4px;margin-top:44px}
.mail-band .k{font-size:12px;letter-spacing:.28em;color:#e9b98a;text-transform:uppercase}
.mail-band a.mail{display:inline-block;margin-top:12px;font-family:var(--cond);font-size:clamp(22px,3.4vw,34px);color:#fff;letter-spacing:.04em;border-bottom:2px solid var(--acc)}
.mail-band p{margin-top:12px;color:#a9b6c2;font-size:14px}

/* ---------- 页脚 ---------- */
footer{background:var(--navy2);color:#a9b6c2;font-size:13px}
footer .top{padding:56px 0 36px;display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
footer h4{color:#fff;font-size:13px;letter-spacing:.14em;margin-bottom:14px;font-family:var(--cond);text-transform:uppercase}
footer .f-brand img{height:52px;margin-bottom:14px;filter:none}
footer .f-brand p{max-width:26em}
footer a{display:block;padding:4px 0;color:#a9b6c2}
footer a:hover{color:#fff}
footer .f-qr{display:flex;gap:12px}
footer .f-qr img{width:76px;height:76px;border:1px solid #2c4561}
footer .f-qr .q{font-size:11px;text-align:center;margin-top:4px}
footer .bot{border-top:1px solid #243c55;padding:18px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;font-size:12px}

/* ---------- CTA 带 ---------- */
.cta-band{background:linear-gradient(120deg,var(--navy),var(--navy2));color:#fff;text-align:center;padding:64px 24px}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,32px)}
.cta-band p{color:#a9b6c2;margin:12px auto 26px;max-width:36em}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .flag-grid,.p-grid{grid-template-columns:repeat(3,1fr)}
  .line-grid,.sol-grid,.video-grid{grid-template-columns:repeat(2,1fr)}
  footer .top{grid-template-columns:1fr 1fr}
}
@media(max-width:760px){
  nav.main{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;border-bottom:1px solid var(--line);padding:8px 0;box-shadow:0 14px 30px rgba(0,0,0,.12)}
  nav.main.open{display:flex}
  nav.main a{padding:12px 24px}
  .burger{display:block}
  .cta-mini{display:none}
  .s-btn .sbt{display:none}
  .flag-grid,.p-grid{grid-template-columns:repeat(2,1fr)}
  .line-grid,.sol-grid,.video-grid,.qr-grid{grid-template-columns:1fr}
  .pm-grid{grid-template-columns:1fr}
  .pm-img{border-right:0;border-bottom:1px solid var(--line);min-height:220px}
  .sol-sec{grid-template-columns:1fr;gap:24px}
  .sol-sec:nth-child(even) .ss-media{order:0}
  .about-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .hero{min-height:440px}
  .hero .wrap{padding:56px 24px}
  .hstat{min-width:46%}
  footer .top{grid-template-columns:1fr}
  section.block{padding:52px 0}
  .p-filter{top:71px}
}

/* ---------- 产品规格表 ---------- */
.pm-specs{margin-top:16px;border-top:1px dashed var(--line2);padding-top:12px}
.pm-specs .spec-head{font-size:11px;letter-spacing:.14em;color:var(--acc);text-transform:uppercase;margin-bottom:8px}
.pm-specs table{width:100%;border-collapse:collapse;font-size:12.5px}
.pm-specs td{border:1px solid var(--line);padding:6px 10px;vertical-align:top}
.pm-specs td:first-child{width:44%;color:var(--ink2);background:var(--bg)}
.pm-specs td:last-child{color:var(--ink)}
.pm-box{max-height:88vh;overflow:auto}