:root{
  color-scheme:light;
  --paper:#f8f7f4;
  --white:#fffefa;
  --ink:#171e37;
  --muted:#4f5770;
  --line:#d9dce8;
  --accent:#292c79;
  --accent-hover:#1b1e59;
  --soft:#efeff7;
  --dark:#171a38;
  --signal:#d1d8ff;
  --sand:#ebdcc3;
  --surface-shadow:0 14px 34px #171a380a;
  --radius:14px;
  --head:Georgia,"Noto Serif SC","Songti SC",serif;
  --body:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --mono:ui-monospace,"SFMono-Regular",Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:26px}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--body);-webkit-font-smoothing:antialiased}
a{color:inherit}
button,input,select,textarea{font:inherit}
button{cursor:pointer}
img{display:block;max-width:100%}
figure,p,h1,h2,h3{margin:0}
h1,h2{font-family:var(--head);font-weight:500;line-height:1.04;letter-spacing:-.052em}
h2{font-size:clamp(2.45rem,4.4vw,4.6rem)}
h3{font-size:1.16rem;line-height:1.22;letter-spacing:-.02em}
:focus-visible{outline:3px solid #535aa3;outline-offset:4px}
.hero :focus-visible,.stage :focus-visible,.process :focus-visible,footer :focus-visible{outline-color:var(--signal)}
[hidden]{display:none!important}
.wrap{width:min(100% - 104px,1336px);margin-inline:auto}
.skip{position:fixed;top:8px;left:8px;z-index:3;transform:translateY(-150%);background:var(--white);padding:9px}
.skip:focus{transform:none}
.header{border-bottom:1px solid var(--line)}
.header-inner{min-height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:inline-flex;align-items:center;gap:11px;text-decoration:none;font-size:1.18rem;font-weight:750;letter-spacing:-.035em;line-height:1.1;white-space:nowrap}
.brand img{flex:none;object-fit:contain;border-radius:8px}
.brand small{display:block;font:9px/1.3 var(--mono);letter-spacing:.105em;color:var(--muted);margin-top:5px}
nav,.header-actions{display:flex;align-items:center;gap:26px}
nav a{text-decoration:none;font-size:.88rem;font-weight:650;white-space:nowrap}
nav a:hover,.language:hover,.back:hover{color:var(--accent)}
.language{border:1px solid var(--line);border-radius:7px;background:var(--white);padding:7px 9px;font-size:.83rem;font-weight:700;color:var(--ink);white-space:nowrap}
.button{min-height:51px;display:inline-flex;align-items:center;justify-content:center;gap:17px;background:var(--accent);border:1px solid var(--accent);border-radius:8px;color:#fff;text-decoration:none;padding:12px 18px;font-size:.9rem;font-weight:700;line-height:1.35;transition:background .15s,border-color .15s,box-shadow .15s}
.button:hover{background:var(--accent-hover);border-color:var(--accent-hover);box-shadow:0 4px 14px #171a3828}
.button-small{min-height:40px;padding:9px 13px;font-size:.82rem;gap:10px}
.eyebrow{display:flex;align-items:center;gap:9px;font:700 .74rem/1.35 var(--mono);letter-spacing:.125em;color:var(--accent)}
.eyebrow>span:first-child{width:13px;height:2px;flex:0 0 13px;background:currentColor}
h1{font-size:clamp(3.05rem,5.1vw,6rem);margin:24px 0 24px}
h1 span,h1 em{display:block}
h1 em{font-weight:400;color:var(--accent)}
.text-link{display:inline-flex;align-items:center;gap:8px;text-decoration:none;font-size:.875rem;font-weight:700;line-height:1.4}
.text-link:hover{text-decoration:underline;text-underline-offset:4px}
.text-link span[aria-hidden]{color:var(--accent)}
.scope{margin:12px auto 22px;width:min(calc(100% - 48px),1480px);border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--surface-shadow)}
.scope-inner{display:grid;grid-template-columns:repeat(3,1fr)}
.scope-inner>div{padding:22px 23px;display:flex;gap:14px;align-items:center;border-inline-start:1px solid var(--line)}
.scope-inner>div:first-child{padding-inline-start:0;border:0}
.scope-icon{display:grid;place-items:center;flex:none;width:38px;height:38px;border-radius:9px;background:var(--soft);font:1.25rem/1 var(--mono);color:var(--accent)}
.scope strong,.scope small{display:block}
.scope strong{font-size:.94rem}
.scope small{max-width:24ch;font-size:.79rem;color:var(--muted);margin-top:2px}
.section{padding-block:88px}
.section h2{margin-top:16px}
.section-head{display:grid;grid-template-columns:1.3fr .7fr;align-items:end;gap:24px;margin-bottom:30px}
.section-head>p{max-width:360px;color:var(--muted);justify-self:end}
.process{background:radial-gradient(ellipse at 12% 15%,#343861 0%,transparent 66%),var(--dark);color:#f7f7ef}
.process-inner{display:grid;grid-template-columns:.95fr 1fr;gap:clamp(35px,8vw,115px)}
.process .eyebrow{color:var(--signal)}
.process p:not(.eyebrow){color:#e0e3f3}
.process-intro>p:last-child{margin-top:19px;max-width:415px}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:9px}
.steps li{display:flex;gap:15px;padding:17px 18px;border:1px solid #d1d8ff38;border-radius:10px;background:#eef0ff08}
.steps b{display:grid;place-items:center;align-self:start;flex:0 0 34px;height:34px;border:1px solid #d1d8ff55;border-radius:50%;color:var(--signal);font:.77rem var(--mono)}
.steps p{margin-top:7px;font-size:.93rem}
.about{display:grid;grid-template-columns:1fr 1fr;gap:45px}
.about h2 span{display:block}
.about-lede{font-size:1.2rem;line-height:1.55}
.about-lede+p{color:var(--muted);margin-top:13px}
.about-links{display:flex;flex-wrap:wrap;gap:15px 25px;margin-top:21px}
.company-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:25px 0 0}
.company-facts>div{padding:12px;border:1px solid var(--line);border-radius:10px;background:var(--white)}
.company-facts dt{color:var(--muted);font-size:.76rem}
.company-facts dd{margin:5px 0 0;color:var(--accent);font-weight:750;line-height:1.35;overflow-wrap:anywhere}
.inquiry{background:linear-gradient(130deg,#e8eaf5,var(--soft) 56%,#f3eee7);border-block:1px solid var(--line)}
.inquiry-inner{display:grid;grid-template-columns:.7fr 1.3fr;gap:clamp(26px,6vw,86px)}
.inquiry-intro>p:not(.eyebrow){margin-top:17px;color:var(--muted);max-width:350px}
.direct{display:grid;gap:5px;margin-top:28px}
.direct span{font:700 .72rem var(--mono);letter-spacing:.12em;color:var(--muted)}
.direct a{font-weight:700;text-decoration:none;width:fit-content;overflow-wrap:anywhere}
.direct a:hover{text-decoration:underline}
form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--surface-shadow);padding:25px}
.form-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding-bottom:13px;margin-bottom:16px}
.form-heading strong{font-size:1.1rem}
.form-heading small,.form-actions p{color:var(--muted);font-size:.78rem}
.fields{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
label{display:grid;gap:5px;font-size:.84rem;font-weight:650}
.wide{grid-column:1/-1}
input:not([type=checkbox]),select,textarea{border:1px solid #c5c9dc;border-radius:7px;background:#f8f8fc;color:var(--ink);padding:9px 10px;min-width:0;width:100%;min-height:43px;font-size:16px;font-weight:400}
textarea{resize:vertical}
.form-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:17px}
.draft{border-top:1px solid var(--line);margin-top:17px;padding-top:13px}
.draft p{font-size:.86rem;margin-bottom:10px}
.copy-button{border:1px solid var(--line);background:var(--soft);padding:4px 9px;font-size:.82rem;margin-inline-start:10px;color:var(--ink)}
.draft-preview{margin-top:12px}
.footer-inner{display:flex;justify-content:space-between;gap:18px;align-items:center;padding-block:24px}
footer p,.back{color:#d6dbee;font-size:.8rem}
footer .back:hover{color:var(--signal)}
.back{white-space:nowrap}
footer{padding-bottom:56px;background:var(--dark);color:#f6fff7}
.support-toggle,.support-panel{--support-edge:max(16px,env(safe-area-inset-right));--support-bottom:max(16px,env(safe-area-inset-bottom));position:fixed}
.support-toggle{z-index:2;right:var(--support-edge);bottom:var(--support-bottom);display:inline-flex;align-items:center;gap:8px;min-height:46px;padding:10px 15px;border:1px solid #8a95d0;border-radius:24px;background:var(--dark);color:#f2f4ff;font-size:.84rem;font-weight:700;box-shadow:0 5px 20px #171a3840}
.support-toggle:hover{background:var(--accent-hover)}
.support-toggle svg{width:21px;height:21px;color:var(--signal)}
.support-panel{inset:auto var(--support-edge) calc(var(--support-bottom) + 57px) auto;width:min(340px,calc(100% - 32px));max-height:calc(100dvh - 84px);margin:0;padding:20px;border:1px solid var(--line);border-radius:12px;background:var(--white);color:var(--ink);box-shadow:0 12px 36px #171a3840}
.support-panel h3{padding-right:27px}
.support-panel p{margin:9px 0 15px;color:var(--muted);font-size:.9rem;line-height:1.55}
.support-panel .button{min-height:42px}
.support-close{position:absolute;top:9px;right:9px;width:34px;height:34px;border:0;border-radius:50%;background:transparent;color:var(--ink);font-size:1.3rem;line-height:1}
.support-close:hover{background:var(--soft)}
:lang(zh-CN) h1,:lang(zh-CN) h2{letter-spacing:-.04em}
:lang(zh-CN) h1{font-size:clamp(2.7rem,4.7vw,5.25rem)}
:lang(zh-CN) h1 em{font-style:normal}
@media(max-width:1020px){.wrap{width:calc(100% - 56px)}nav,.header-actions{gap:15px}.section{padding-block:65px}}
@media(max-width:780px){.header-inner{min-height:66px;gap:8px}.wrap{width:calc(100% - 36px)}nav{display:none}.section{padding-block:51px}.section-head,.process-inner,.about,.inquiry-inner{grid-template-columns:1fr;gap:21px}.section-head>p{justify-self:start}.about h2 span{display:inline}.scope-inner>div{padding:14px 9px;gap:7px}.scope-icon{display:none}.scope strong{font-size:.77rem}.scope small{font-size:.69rem}}
@media(max-width:530px){.brand{font-size:1.05rem;gap:7px}.brand img{width:30px;height:30px}.brand small{font-size:7px}.header-actions{gap:6px}.button-small{font-size:.72rem;padding:7px 8px;min-height:34px}.language{padding:6px 3px;font-size:.78rem}.fields{grid-template-columns:1fr}.wide{grid-column:auto}form{padding:17px}.footer-inner{flex-wrap:wrap}.footer-inner p{order:3;width:100%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* Photography, application index and interactive airframe */
.header{background:var(--paper)}
.header-inner{min-height:74px}
.hero{position:relative;isolation:isolate;width:min(calc(100% - 48px),1480px);margin:18px auto 0;border-radius:22px;background:var(--dark);color:#fff;overflow:hidden}
.hero-image{position:absolute;inset:0;z-index:-2;width:100%;height:100%;object-fit:cover;object-position:50% 46%}
.hero::before{position:absolute;inset:0;content:"";z-index:-1;background:linear-gradient(90deg,#171b37f7 0%,#171b37d9 28%,#171b3790 49%,#171b3708 82%),linear-gradient(0deg,#171b37ce 0%,transparent 29%)}
.hero-inner{width:min(100% - 68px,1260px);min-height:clamp(520px,46vw,700px);display:flex;align-items:center;position:relative;padding-block:65px 92px}
.hero-content{max-width:840px}
.hero .eyebrow{color:var(--signal)}
.hero h1{font-size:clamp(3.6rem,6.65vw,7.6rem);line-height:.99;margin:23px 0 25px;color:#faf9ff}
.hero h1 em{color:var(--sand)}
.hero-text{font-size:clamp(1.05rem,1.45vw,1.25rem);color:#e4e6f3;max-width:460px}
.hero-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-top:31px}
.hero .button:not(.button-outline){background:var(--signal);border-color:var(--signal);color:#171a38}
.hero .button:not(.button-outline):hover{background:white;border-color:white}
.button-outline{border-color:#ffffff7a;background:#ffffff0e;color:#fff}
.button-outline:hover{border-color:#fff;background:#ffffff2e}
.hero-caption{position:absolute;bottom:23px;left:0;right:0;display:flex;justify-content:space-between;gap:15px;border-top:1px solid #ffffff4a;padding-top:12px;font:600 .68rem var(--mono);letter-spacing:.11em;color:#f1f2fb}
.scope-inner>div{padding-block:21px}
.scope strong{color:var(--ink)}
.stage-scroll{height:177vh;height:177svh;background:#12152e}
.stage{position:sticky;top:0;height:100vh;height:100svh;min-height:520px;display:flex;align-items:center;background:radial-gradient(ellipse at 50% 48%,#343b63 0%,#212746 43%,#12152e 79%);color:#f1f4ff;overflow:hidden}
.stage-inner{text-align:center;display:flex;flex-direction:column;align-items:center;height:100%;justify-content:center;padding-block:22px}
.stage-heading .eyebrow{justify-content:center;color:var(--signal)}
.stage-heading h2{font-size:clamp(2.2rem,4.1vw,4.55rem);margin-top:9px}
.stage-heading>p:last-child{font-size:.9rem;color:#d0d6eb;margin-top:9px}
.stage-visual{position:relative;width:min(100%,920px);height:clamp(210px,43svh,470px);flex:none;margin-block:8px 1px}
.stage-visual::before{content:"";position:absolute;inset:0;background-image:linear-gradient(#acb8e712 1px,transparent 1px),linear-gradient(90deg,#acb8e712 1px,transparent 1px);background-size:36px 36px;mask-image:radial-gradient(ellipse 85% 83% at center,#000 48%,transparent 95%)}
.stage-visual canvas{position:relative;display:block;width:100%;height:100%}
.stage-coordinate{position:absolute;font:1.2rem var(--mono);color:#b0bbe392;top:13%;left:10%}
.stage-coordinate:nth-child(2){top:auto;left:auto;bottom:13%;right:10%}
.stage-parts{list-style:none;width:min(100%,920px);display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:5px;margin:9px 0 0;padding:0}
.stage-parts button{width:100%;height:100%;display:flex;align-items:start;gap:7px;padding:6px 8px;border:1px solid #555f8a;border-radius:7px;background:#202641;color:#f0f2ff;text-align:start;line-height:1.24}
.stage-parts button:hover,.stage-parts button[aria-pressed=true]{border-color:var(--signal);background:#333c69}
.stage-parts .part-number{flex:none;color:var(--signal);font:700 .68rem/1.45 var(--mono)}
.stage-parts strong,.stage-parts small{display:block}
.stage-parts strong{font-size:.78rem}
.stage-parts small{margin-top:2px;color:#d3d9ee;font-size:.71rem}
.stage-controls{width:min(100%,590px);display:grid;grid-template-columns:auto minmax(44px,1fr) auto 40px;gap:13px;align-items:center;font:600 .72rem var(--mono);letter-spacing:.08em;color:#e0e5fa}
.stage-controls input[type=range]{padding:0;min-height:29px;height:29px;cursor:ew-resize;background:transparent;accent-color:var(--signal);border:none}
.stage-meter{color:var(--signal);text-align:right}
.stage-note{color:#c7cfe9;font:600 .64rem var(--mono);letter-spacing:.1em;margin-top:10px}
.catalog .section-head{margin-bottom:48px}
.catalog-group + .catalog-group{margin-top:41px}
.group-heading{display:flex;align-items:center;gap:13px;margin-bottom:15px;border-top:1px solid var(--line);padding-top:14px}
.group-heading span{display:grid;place-items:center;min-width:32px;height:27px;border:1px solid var(--line);border-radius:6px;background:var(--soft);color:var(--accent);font:700 .73rem var(--mono)}
.group-heading h3{font-family:var(--head);font-size:clamp(1.35rem,2vw,1.95rem);font-weight:500}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px}
.card{border:1px solid var(--line);border-radius:var(--radius);background:var(--white);box-shadow:var(--surface-shadow);display:flex;flex-direction:column;min-width:0;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.card:hover,.card:focus-within{border-color:#a4a9cc;box-shadow:0 16px 32px #171a3818}
.card-media{aspect-ratio:1.6;background:#667189;overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;object-position:center 45%;transition:transform .38s ease}
.card:hover .card-media img,.card:focus-within .card-media img{transform:scale(1.045)}
.card-body{padding:18px 19px 21px;display:flex;flex-direction:column;align-items:start;flex:1}
.card-body h4{margin:0;font-size:clamp(1rem,1.47vw,1.29rem);line-height:1.2;letter-spacing:-.02em}
.card-body p{margin:8px 0 13px;color:var(--muted);font-size:.91rem}
.card-body a{margin-top:auto;padding-top:11px;border-top:1px solid var(--line);color:var(--accent)}
.components{background:radial-gradient(ellipse at 6% 5%,#e6e8f5 0%,transparent 63%),var(--soft);border-block:1px solid var(--line)}
.component-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.part-card{display:flex;flex-direction:column;align-items:start;min-height:166px;position:relative;gap:8px;padding:19px 20px 30px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);text-decoration:none;transition:background .2s,border-color .2s}
.part-card:hover{background:#fff;border-color:#7d87b8}
.part-card svg{width:39px;height:39px;padding:8px;border-radius:8px;background:var(--soft);color:var(--accent);margin-bottom:3px}
.part-card p{color:var(--muted);font-size:.87rem;line-height:1.45}
.part-card>span{position:absolute;right:15px;bottom:11px;color:var(--accent)}
.components-footer{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:22px}
.components-footer p{font-size:.9rem;color:var(--muted)}
.components-footer .button{white-space:nowrap}
@media(max-width:780px){.hero,.scope{width:calc(100% - 24px)}.hero{margin-top:12px;border-radius:15px}.hero-inner{width:calc(100% - 36px)}.scope-inner{width:calc(100% - 24px)}}
@media(max-width:530px){.company-facts>div{padding:9px 7px}.company-facts dd{font-size:.84rem}.company-facts dt{font-size:.68rem}}
@media(max-width:1020px){.header-inner{gap:16px}.header nav,.header-actions{gap:12px}.header nav a{font-size:.8rem}.stage-inner{width:calc(100% - 44px)}}
@media(max-width:780px){.hero-inner{min-height:590px;padding-block:105px 72px;align-items:flex-end}.hero-image{object-position:67% 26%}.hero::before{background:linear-gradient(0deg,#141831fa 0%,#141831db 35%,#1418313d 77%)}.hero h1{font-size:clamp(3.3rem,9vw,5.8rem)}.hero-caption{font-size:.58rem;bottom:15px}.hero-actions{margin-top:20px}.cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.component-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog .section-head{margin-bottom:33px}.catalog-group + .catalog-group{margin-top:28px}.stage-controls{gap:8px}}
@media(max-width:530px){.hero-inner{min-height:550px}.hero h1{font-size:clamp(2.68rem,11.4vw,3.55rem)}:lang(zh-CN) .hero h1{font-size:clamp(1.82rem,9.2vw,3rem)}.hero-actions .button{min-height:44px;font-size:.78rem;padding:10px;gap:8px}.cards{grid-template-columns:1fr}.card-media{aspect-ratio:1.68}.stage-inner{width:calc(100% - 30px)}.stage-visual{height:clamp(195px,34svh,345px)}.stage-heading>p:last-child{font-size:.8rem}.stage-controls{font-size:.55rem;grid-template-columns:auto minmax(44px,1fr) auto 31px}.stage-note{font-size:.55rem}.components-footer{align-items:start;flex-direction:column}.part-card{padding:13px 12px 27px}.part-card h3{font-size:.94rem}}
@media(max-width:690px){.stage-inner{padding-bottom:78px}.stage-parts{grid-template-columns:repeat(2,minmax(0,1fr))}.stage-parts button{padding:6px}.stage-parts strong{font-size:.73rem}.stage-parts small{font-size:.65rem}.stage-coordinate{display:none}}
@media(max-height:740px){.stage-visual{height:clamp(177px,31svh,240px)}}
@media(max-height:620px){.stage-scroll{height:auto}.stage{position:relative;min-height:480px;height:auto}.stage-inner{height:auto}.stage-visual{height:210px}}
@media(prefers-reduced-motion:reduce){.stage-scroll{height:auto}.stage{position:relative;min-height:480px;height:auto}.stage-inner{padding-block:35px}}

/* Business discovery and aircraft browsing */
.business{padding-bottom:64px}
.business-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.business-card{display:flex;flex-direction:column;align-items:start;gap:11px;padding:22px 20px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);color:var(--ink);text-decoration:none;box-shadow:var(--surface-shadow);transition:border-color .2s,background .2s}
.business-card:hover,.business-card:focus-visible{border-color:var(--accent);background:#f2f2fb}
.business-number{font:700 .74rem var(--mono);color:var(--accent);border-bottom:1px solid var(--line);padding-bottom:7px}
.business-card h3{font-size:1.15rem;line-height:1.3}
.business-card p{font-size:.89rem;line-height:1.55;color:var(--muted)}
.business-next{margin-top:auto;padding-top:8px;font-size:.82rem;font-weight:700;color:var(--accent)}
.business-foot{display:flex;flex-wrap:wrap;gap:9px 20px;justify-content:center;margin-top:23px;color:var(--muted);font-size:.88rem}
.systems{background:linear-gradient(135deg,#e9eaf5,#f4f3f9);border-block:1px solid var(--line)}
.system-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.system-card{overflow:hidden;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);display:flex;flex-direction:column;box-shadow:var(--surface-shadow)}
.system-card>img{width:100%;height:260px;object-fit:cover}
.system-body{padding:23px;display:flex;flex-direction:column;align-items:start;flex:1}
.system-kicker{font:600 .65rem/1.5 var(--mono);letter-spacing:.07em;color:var(--accent)}
.system-body h3{font-size:1.45rem;margin-top:9px}
.system-body p{color:var(--muted);font-size:.93rem;margin:12px 0 20px}
.system-body .text-link{margin-top:auto;color:var(--accent)}
.integration-strip{display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center;padding:25px;margin-top:20px;background:var(--dark);color:#f2f4ff;border-radius:var(--radius)}
.integration-strip h3{font-size:1.2rem}
.integration-strip p{font-size:.9rem;color:#d6dbee;margin-top:8px;max-width:760px}
.integration-strip .button{background:var(--signal);border-color:var(--signal);color:var(--dark);white-space:nowrap}
.integration-strip .button:hover{background:#fff;border-color:#fff}
.systems-caption{color:var(--muted);font-size:.73rem;margin-top:13px;text-align:right}
.aircraft-tabs{display:flex;gap:6px;padding:5px;background:#e7e8f3;border:1px solid var(--line);border-radius:10px;width:fit-content;margin-bottom:23px}
.aircraft-tabs button{min-height:43px;border:1px solid transparent;border-radius:7px;padding:9px 18px;background:transparent;color:var(--muted);font-size:.9rem;font-weight:700}
.aircraft-tabs button[aria-selected=true]{background:var(--white);border-color:#cbd0e5;box-shadow:0 2px 7px #171a3810;color:var(--accent)}
.airframe-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.airframe-grid .card-media{aspect-ratio:1.6;background:#eeece9}.airframe-grid .card-media img{object-fit:contain}
.airframe-grid .card-body h3{font-size:1.08rem}
.aircraft-help{font-size:.88rem;color:var(--muted);margin-top:20px}
.inquiry-hint{padding:11px 13px;border:1px solid var(--line);border-radius:8px;background:var(--soft);font-size:.86rem;color:var(--muted)}
#applications,#counter-uas,#swarm-systems,#integration-services,#components,#inquiry{scroll-margin-top:18px}
@media(max-width:1100px){.header nav{display:none}.business-grid,.airframe-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.business-card:last-child{grid-column:1/-1}}
@media(max-width:780px){.system-grid{grid-template-columns:1fr}.system-card>img{height:240px}.integration-strip{grid-template-columns:1fr;gap:17px}.integration-strip .button{justify-self:start}.business-card{padding:18px 16px}.business{padding-bottom:45px}}
@media(max-width:530px){.business-card{padding:14px 12px;gap:8px}.business-card h3{font-size:.99rem}.business-card p{font-size:.83rem}.business-next{font-size:.72rem}.business-foot{justify-content:start}.system-body{padding:18px}.system-body h3{font-size:1.24rem}.system-card>img{height:210px}.airframe-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.airframe-grid .card-media{aspect-ratio:1.6}.airframe-grid .card-body{padding:12px}.airframe-grid .card-body h3{font-size:.94rem}.airframe-grid .card-body p{font-size:.8rem}.airframe-grid .text-link{font-size:.76rem}.aircraft-tabs{width:100%}.aircraft-tabs button{flex:1;padding-inline:10px}.hero h1{font-size:clamp(2.5rem,10.4vw,3.55rem)}}

@media(max-width:530px){:lang(zh-CN) .section h2{font-size:clamp(1.8rem,7.4vw,2.25rem);line-height:1.25}}

/* Sourcing evidence and editorial buyer guidance */
.sourcing-assurance{padding-top:15px;border-bottom:1px solid var(--line)}
.assurance-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.assurance-grid article{padding:25px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,var(--white),#f0f0f8)}
.assurance-grid h3{margin-bottom:12px;font-size:1.15rem}
.assurance-grid p{color:var(--muted);font-size:.93rem}
.assurance-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px 30px;margin-top:25px}
.assurance-actions a:not(.button){font-size:.88rem;font-weight:650;text-underline-offset:4px}
.resource-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}
.resource-grid>a{position:relative;padding:25px 22px 43px;text-decoration:none;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);transition:background .15s,border-color .15s}
.resource-grid>a:hover{background:var(--soft);border-color:var(--accent)}
.resource-grid h3{font-size:1.09rem;margin-bottom:12px}
.resource-grid p{font-size:.9rem;color:var(--muted)}
.resource-grid>a>span{position:absolute;bottom:14px;right:20px;color:var(--accent)}
.resource-language{display:flex;flex-wrap:wrap;justify-content:space-between;gap:15px;margin:24px 0 40px;font-size:.87rem;font-weight:650;text-underline-offset:4px}
.faq-heading{margin:0 0 18px;font-size:1.4rem}
.buyer-faq{border-top:1px solid var(--line)}
.buyer-faq details{border-bottom:1px solid var(--line)}
.buyer-faq summary{position:relative;cursor:pointer;padding:19px 35px 19px 0;font-weight:650;font-size:.97rem;list-style:none}
.buyer-faq summary::-webkit-details-marker{display:none}
.buyer-faq summary:after{content:'+';position:absolute;right:7px;top:15px;color:var(--accent);font-size:1.4rem;font-weight:400}
.buyer-faq details[open] summary:after{content:'−'}
.buyer-faq details>p{padding:0 42px 22px 0;color:var(--muted);max-width:960px;font-size:.95rem}
.guide-page{max-width:1120px;padding-bottom:75px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:10px;margin-top:29px;font-size:.8rem;color:var(--muted)}
.breadcrumbs a{font-size:inherit;font-weight:500;text-decoration:underline;text-underline-offset:3px}
.guide-heading{padding:54px 0 44px;border-bottom:1px solid var(--line);max-width:960px}
.guide-heading h1{font-size:clamp(2.5rem,4.8vw,4.9rem);line-height:1.07;max-width:950px;margin:23px 0}
.guide-description{font-size:1.18rem;line-height:1.65;color:var(--muted);max-width:800px}
.guide-date{font: .73rem/1.6 var(--mono);color:var(--muted);margin-top:25px}
.guide-body{max-width:960px}
.guide-body>section{margin-top:44px}
.guide-body h2{font:500 clamp(1.9rem,3vw,2.8rem)/1.15 var(--head);letter-spacing:-.035em;margin:0 0 20px}
.guide-body h3{margin:0 0 12px}
.guide-body p{margin:13px 0;max-width:79ch}
.guide-body ul,.guide-body ol{padding-left:24px}
.guide-body li{margin-bottom:10px;max-width:78ch}
.guide-body .button{margin:8px 0}
.guide-links{display:flex;flex-wrap:wrap;gap:10px 25px;margin:20px 0;font-size:.9rem;font-weight:600;text-underline-offset:4px}
.table-scroll{width:100%;overflow:auto;border:1px solid var(--line);border-radius:12px;margin:24px 0;background:var(--white)}
.table-scroll table{width:100%;border-collapse:collapse;font-size:.9rem;line-height:1.55;text-align:left}
.table-scroll th,.table-scroll td{padding:16px 18px;border-bottom:1px solid var(--line);vertical-align:top;min-width:160px}
.table-scroll th{background:var(--soft);font-size:.8rem}
.table-scroll tr:last-child td{border:0}
.buyer-roles{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.buyer-roles article{display:flex;flex-direction:column;align-items:start;padding:24px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.buyer-roles h3{font-size:1.2rem;line-height:1.35}
.buyer-roles p{font-size:.93rem;color:var(--muted);margin:5px 0 10px}
.buyer-roles p strong{display:block;color:var(--accent);font:600 .72rem/1.5 var(--mono);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}
.buyer-roles .guide-links{margin-top:auto;padding-top:12px}
.buyer-roles .button{font-size:.85rem;min-height:44px;padding:10px 13px}
.guide-contact{margin-top:50px;padding:25px;border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:10px;background:var(--soft);font-size:.93rem}
.guide-contact p{margin:7px 0;overflow-wrap:anywhere}
@media(max-width:1020px){.resource-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.assurance-grid article{padding:20px}}
@media(max-width:780px){.assurance-grid{grid-template-columns:1fr}.assurance-grid article{padding:20px}.guide-heading{padding:38px 0 30px}.guide-page{padding-bottom:45px}.guide-description{font-size:1.04rem}.guide-body>section{margin-top:32px}.buyer-roles{grid-template-columns:1fr}.sourcing-assurance{padding-top:5px}}
@media(max-width:530px){.resource-grid{grid-template-columns:1fr}.resource-grid>a{padding:22px 46px 22px 20px}.resource-grid>a>span{bottom:22px}.resource-language{margin-bottom:32px}.guide-heading h1{font-size:2.5rem}.guide-heading .eyebrow{font-size:.63rem}.buyer-faq summary{font-size:.91rem}.buyer-faq details>p{padding-right:10px;font-size:.9rem}.buyer-roles article{padding:20px}.table-scroll th,.table-scroll td{padding:12px 14px}.guide-contact{padding:20px}.assurance-actions{gap:18px}.guide-links{gap:14px}}
.role-picker{display:flex;flex-wrap:wrap;gap:9px;margin-top:24px}
.role-picker a{display:block;border:1px solid var(--line);border-radius:7px;background:var(--white);padding:9px 12px;font-size:.82rem;font-weight:650;white-space:normal;text-decoration:none}
.role-picker a:hover{background:var(--soft);border-color:var(--accent)}
@media(max-width:530px){.header .brand small{display:none}.header-actions .button{white-space:nowrap}.role-picker{gap:8px}.role-picker a{font-size:.78rem}}
@media(max-width:530px){.header-actions .button-small{font-size:.7rem;gap:7px;padding-inline:9px}.header .language{font-size:.72rem;padding-inline:4px}}

/* Inquiry feedback and owner inbox */
fieldset.fields{border:0;padding:0;margin:0;min-inline-size:0}
.form-actions button:disabled{opacity:.65;cursor:wait}
.inquiry-status{overflow-wrap:anywhere}
.inquiry-status:not(:empty){margin-top:17px;padding:13px 15px;border:1px solid var(--line);border-radius:8px;background:var(--soft);font-size:.92rem}
.inquiry-status[data-state=success]{background:#eaf4ed;border-color:#aecdb5;color:#1c4b31}
.inquiry-status[data-state=invalid],.inquiry-status[data-state=unavailable],.inquiry-status[data-state=busy]{background:#fff3e6;border-color:#e0c39e;color:#563613}
.inquiry-inbox{max-width:880px}
.inquiry-inbox h1{font-size:clamp(2.5rem,6vw,4.1rem)}
.inquiry-inbox>p{margin-block:16px}
.inbox-card{margin-block:18px;padding:20px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.inbox-card h2{font:650 .93rem/1.5 var(--mono);letter-spacing:0;overflow-wrap:anywhere}
.inbox-card>p{color:var(--muted);font-size:.84rem}
.inbox-card dl{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin:17px 0 0}
.inbox-card dl>div:last-child{grid-column:1/-1}
.inbox-card dt{font-weight:650}
.inbox-card dd{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}
@media(max-width:530px){.inbox-card dl{grid-template-columns:1fr}}