:root{
  --paper:#FCFBF8;
  --paper-2:#FFFFFF;
  --warm:#FFF3E3;
  --warm-line:rgba(217,118,10,.22);
  --ink:#1E2A33;
  --ink-2:#3C4A54;
  --slate:#5E6D77;
  --line:rgba(30,42,51,.13);
  --line-soft:rgba(30,42,51,.07);
  --orange:#F3890F;
  --orange-deep:#C2670A;
  --orange-soft:rgba(243,137,15,.13);
  --sans:"IBM Plex Sans JP",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--paper);color:var(--ink);
  line-height:1.7;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px}

.wrap{max-width:1120px;margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono);font-weight:500;letter-spacing:.04em}
.eyebrow{font-family:var(--mono);font-size:12px;font-weight:600;
  letter-spacing:.18em;text-transform:uppercase;color:var(--orange-deep)}

/* ---------- masthead ---------- */
.mast{position:sticky;top:0;z-index:50;background:rgba(252,251,248,.85);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft)}
.mast-in{display:flex;align-items:center;justify-content:space-between;height:62px}
.brand{display:flex;align-items:baseline;gap:11px}
.brand .logo{font-family:var(--mono);font-weight:600;font-size:22px;letter-spacing:.02em}
.brand .logo b{color:var(--orange)}
.brand .name{font-size:13px;color:var(--slate);font-weight:500}
.mast-nav{display:flex;gap:26px;font-size:13px;font-weight:500}
.mast-nav a{color:var(--slate);transition:color .2s}
.mast-nav a:hover,.mast-nav a[aria-current="page"]{color:var(--orange-deep)}
@media(max-width:720px){.mast-nav{display:none}.brand .name{display:none}}

/* ---------- mobile nav (hamburger) ---------- */
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:5px;
  width:38px;height:38px;background:none;border:0;cursor:pointer;padding:0}
.menu-btn span{display:block;width:22px;height:2px;background:var(--ink);
  border-radius:2px;transition:transform .25s,opacity .25s}
.menu-btn.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.open span:nth-child(2){opacity:0}
.menu-btn.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-nav{display:none}
@media(max-width:720px){
  .menu-btn{display:flex}
  .mobile-nav{display:block;max-height:0;overflow:hidden;background:var(--paper-2);
    border-bottom:1px solid var(--line-soft);transition:max-height .3s ease}
  .mobile-nav.open{max-height:520px}
  .mobile-nav a{display:block;padding:15px 28px;font-size:14.5px;font-weight:500;
    color:var(--ink-2);border-bottom:1px solid var(--line-soft)}
  .mobile-nav a:last-child{border-bottom:0}
  .mobile-nav a:hover,.mobile-nav a[aria-current="page"]{color:var(--orange-deep)}
}

/* ---------- hero (top) ---------- */
.hero{padding:58px 0 46px}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:52px;align-items:center}
.hero h1{font-size:clamp(32px,4.6vw,56px);font-weight:700;line-height:1.16;
  letter-spacing:-.01em;margin:22px 0 0}
.hero h1 .l2{display:block;position:relative;width:fit-content}
.hero h1 .l2::after{content:"";position:absolute;left:-.04em;right:-.04em;bottom:.08em;
  height:.2em;background:var(--orange);z-index:-1;opacity:.42;border-radius:2px}
.hero .lede{margin-top:28px;max-width:630px;font-size:clamp(15px,2vw,17.5px);color:var(--ink-2)}
.altscale{margin-top:50px;border-top:1px solid var(--line);display:flex;gap:30px;
  flex-wrap:wrap;padding-top:15px;font-size:12px;color:var(--slate)}
.altscale span{display:inline-flex;align-items:center;gap:8px}
.altscale span::before{content:"";width:7px;height:7px;background:var(--orange);border-radius:50%}
.altscale span.dim::before{background:var(--line)}

.viewport{position:relative;aspect-ratio:4/3;border-radius:16px;overflow:hidden;
  background:#EFEBE1;box-shadow:0 30px 64px -32px rgba(30,42,51,.5);border:1px solid var(--line)}
.viewport svg{position:absolute;inset:0;width:100%;height:100%;display:block}
.vp-hud{position:absolute;inset:0;pointer-events:none;font-family:var(--mono);
  font-size:10.5px;font-weight:500;letter-spacing:.08em}
.vp-hud .tag{position:absolute;color:var(--ink);background:rgba(252,251,248,.82);
  padding:3px 8px;border-radius:5px;white-space:nowrap}
.vp-hud .tr{top:18px;right:38px}
.vp-hud .bl{bottom:18px;left:38px}
.vp-hud .br{bottom:18px;right:38px;color:var(--orange-deep);display:flex;align-items:center;gap:6px}
.vp-hud .br::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--orange);
  animation:pulse 1.6s ease-in-out infinite}
.vp-hud .corner{position:absolute;width:20px;height:20px;border:2px solid var(--orange)}
.vp-hud .c1{top:10px;left:10px;border-right:0;border-bottom:0;border-radius:5px 0 0 0}
.vp-hud .c2{top:10px;right:10px;border-left:0;border-bottom:0;border-radius:0 5px 0 0}
.vp-hud .c3{bottom:10px;left:10px;border-right:0;border-top:0;border-radius:0 0 0 5px}
.vp-hud .c4{bottom:10px;right:10px;border-left:0;border-top:0;border-radius:0 0 5px 0}
.flightpath{stroke-dasharray:7 6;animation:fly 6s linear infinite}
@keyframes fly{to{stroke-dashoffset:-260}}
@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:38px}.viewport{max-width:520px}}

/* ---------- interior page hero ---------- */
.page-hero{padding:52px 0 40px;border-bottom:1px solid var(--line)}
.page-hero h1{font-size:clamp(28px,4.4vw,46px);font-weight:700;letter-spacing:-.01em;
  line-height:1.2;margin-top:14px}
.page-hero .lead{margin-top:18px;max-width:680px;font-size:clamp(15px,2vw,17px);color:var(--ink-2)}
.breadcrumb{font-family:var(--mono);font-size:11.5px;color:var(--slate);letter-spacing:.06em}
.breadcrumb a:hover{color:var(--orange-deep)}

/* ---------- prose / service blocks ---------- */
.prose{max-width:780px}
.prose p{font-size:15px;color:var(--ink-2);margin-bottom:18px}
.prose strong{color:var(--orange-deep);font-weight:600}
.svc{padding:42px 0;border-bottom:1px solid var(--line)}
.svc:last-child{border-bottom:0}
.svc .snum{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--orange);letter-spacing:.1em}
.svc h2{font-size:clamp(21px,3vw,30px);font-weight:700;margin:12px 0 14px;letter-spacing:-.01em}
.svc p{font-size:15px;color:var(--ink-2);max-width:760px;margin-bottom:14px}
.svc .kw{font-family:var(--mono);font-size:11.5px;color:var(--orange-deep);letter-spacing:.06em}
.svc .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.svc .tags span{font-size:12.5px;background:var(--paper-2);border:1px solid var(--line);
  border-radius:20px;padding:5px 12px;color:var(--ink-2)}

/* ---------- section frame ---------- */
.sec{padding:80px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sec-head h2{font-size:clamp(25px,4vw,40px);font-weight:700;letter-spacing:-.01em;line-height:1.25}
.sec-head .sub{font-size:14px;color:var(--slate);max-width:370px;text-align:right}
.sec-head .more{font-family:var(--mono);font-size:12px;color:var(--orange-deep);white-space:nowrap}
@media(max-width:720px){.sec-head{flex-direction:column;align-items:flex-start;gap:12px}.sec-head .sub{text-align:left}}

/* ---------- works log ---------- */
.log{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.row{display:grid;grid-template-columns:132px 1fr 250px;gap:28px;padding:30px 4px;
  border-bottom:1px solid var(--line);position:relative;transition:transform .25s}
.row::before{content:"";position:absolute;left:-22px;right:-22px;top:-1px;bottom:-1px;
  background:var(--paper-2);border-radius:10px;box-shadow:0 14px 34px -16px rgba(30,42,51,.28);
  opacity:0;transition:opacity .25s;z-index:-1}
.row:hover::before{opacity:1}
.row:hover{transform:translateY(-2px)}
.row .idx{font-family:var(--mono);font-weight:600;font-size:15px;transition:color .25s}
.row:hover .idx{color:var(--orange)}
.row .cat{display:block;margin-top:6px;font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--slate)}
.row .title{font-size:21px;font-weight:600;line-height:1.3}
.row .client{font-size:12.5px;color:var(--slate);margin-top:2px}
.row .desc{font-size:14.5px;color:var(--ink-2);margin-top:11px;max-width:48ch}
.chips{display:flex;flex-wrap:wrap;gap:7px;align-content:flex-start}
.chip{font-family:var(--mono);font-size:11px;font-weight:500;border:1px solid var(--line);
  border-radius:20px;padding:4px 10px;color:var(--slate);white-space:nowrap;background:var(--paper)}
.chip.live{border-color:var(--orange);color:var(--orange-deep);background:var(--orange-soft);
  display:inline-flex;align-items:center;gap:6px}
.chip.live::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--orange);
  animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}
@media(max-width:860px){.row{grid-template-columns:96px 1fr;gap:18px}.chips{grid-column:1/-1;padding-left:96px;margin-top:6px}}
@media(max-width:560px){.row{grid-template-columns:1fr}.chips{padding-left:0}}

/* ---------- product panel ---------- */
.drone{background:var(--warm)}
.drone h2{font-size:clamp(26px,4.6vw,44px);font-weight:700;letter-spacing:-.01em;
  line-height:1.25;margin:18px 0 0;max-width:none}
.drone .lede{margin-top:20px;max-width:600px;font-size:15.5px;color:var(--ink-2)}
.dgrid{margin-top:48px;display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--warm-line)}
.dcell{padding:26px 4px 26px 0;border-bottom:1px solid var(--warm-line);display:flex;gap:18px}
.dcell:nth-child(odd){padding-right:34px;border-right:1px solid var(--warm-line)}
.dcell:nth-child(even){padding-left:34px}
.dcell .di{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--orange-deep);padding-top:3px}
.dcell h3{font-size:17px;font-weight:600;color:var(--ink)}
.dcell p{font-size:13.5px;color:var(--ink-2);margin-top:5px}
@media(max-width:640px){.dgrid{grid-template-columns:1fr}.dcell,.dcell:nth-child(odd),.dcell:nth-child(even){padding:22px 0;border-right:none}}

/* ---------- capabilities ---------- */
.caps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.cap{background:var(--paper-2);border:1px solid var(--line-soft);border-radius:12px;
  padding:30px 26px;box-shadow:0 10px 30px -22px rgba(30,42,51,.4);transition:transform .25s,box-shadow .25s}
.cap:hover{transform:translateY(-3px);box-shadow:0 18px 38px -22px rgba(30,42,51,.38)}
.cap .cnum{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--orange);letter-spacing:.1em}
.cap h3{font-size:19px;font-weight:600;margin-top:14px}
.cap p{font-size:13.5px;color:var(--slate);margin-top:10px}
@media(max-width:760px){.caps{grid-template-columns:1fr}}

/* ---------- company ---------- */
.company{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:start}
.quote{font-size:clamp(18px,2.6vw,23px);font-weight:500;line-height:1.72;letter-spacing:-.005em}
.quote .by{display:block;margin-top:18px;font-size:13px;color:var(--slate);font-weight:400}
.facts{border-top:1px solid var(--line)}
.facts dl{display:grid;grid-template-columns:96px 1fr;padding:13px 0;
  border-bottom:1px solid var(--line);font-size:13.5px}
.facts dt{font-family:var(--mono);font-size:11.5px;color:var(--slate);letter-spacing:.06em;padding-top:2px}
.facts dd{color:var(--ink-2)}
@media(max-width:760px){.company{grid-template-columns:1fr;gap:32px}}

/* ---------- contact band ---------- */
.contact{background:var(--orange);text-align:center;padding:84px 0}
.contact .eyebrow{color:#7a3d00}
.contact h2{color:var(--ink);font-size:clamp(25px,4vw,38px);font-weight:700;margin:16px 0 10px}
.contact p{color:#5a3408;font-size:14.5px}
.cta{display:flex;gap:14px;justify-content:center;margin-top:30px;flex-wrap:wrap}
.btn{font-family:var(--mono);font-size:13px;font-weight:600;letter-spacing:.04em;
  padding:14px 28px;border-radius:30px;transition:transform .2s,background .2s,color .2s}
.btn.primary{background:#fff;color:var(--orange-deep)}
.btn.primary:hover{transform:translateY(-2px)}
.btn.ghost{border:1.5px solid var(--ink);color:var(--ink)}
.btn.ghost:hover{background:var(--ink);color:#fff}

/* ---------- news list ---------- */
.news{border-top:1px solid var(--line)}
.news .item{display:grid;grid-template-columns:150px 1fr;gap:24px;padding:24px 4px;
  border-bottom:1px solid var(--line);transition:background .2s}
.news .item:hover{background:var(--paper-2)}
.news .meta{font-family:var(--mono);font-size:12px;color:var(--slate);line-height:1.5}
.news .meta .cat{display:inline-block;margin-top:8px;color:var(--orange-deep)}
.news h2{font-size:18px;font-weight:600;line-height:1.45}
.news p{font-size:14px;color:var(--ink-2);margin-top:6px;max-width:60ch}
@media(max-width:640px){.news .item{grid-template-columns:1fr;gap:6px}}

/* ---------- contact form ---------- */
.form{max-width:640px}
.field{margin-bottom:20px}
.field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:7px}
.field .req{color:var(--orange-deep);font-size:10.5px;margin-left:8px;font-family:var(--mono);letter-spacing:.04em}
.field input,.field select,.field textarea{width:100%;font-family:var(--sans);font-size:15px;
  color:var(--ink);background:var(--paper-2);border:1px solid var(--line);border-radius:8px;
  padding:12px 14px;transition:border-color .2s}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--orange);
  box-shadow:0 0 0 3px var(--orange-soft)}
.field textarea{min-height:150px;resize:vertical}
.field.consent{display:flex;align-items:flex-start;gap:10px;font-size:14px}
.field.consent input{width:auto;margin-top:4px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-submit{margin-top:8px;background:var(--orange);color:#fff;font-family:var(--mono);
  font-weight:600;font-size:14px;letter-spacing:.04em;padding:14px 44px;border-radius:30px;
  border:0;cursor:pointer;transition:transform .2s,background .2s}
.form-submit:hover{transform:translateY(-2px);background:var(--orange-deep)}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:820px}
.faq .qa{padding:26px 4px;border-bottom:1px solid var(--line)}
.faq .q{display:flex;gap:12px;font-size:17px;font-weight:600;line-height:1.5}
.faq .q::before{content:"Q";font-family:var(--mono);color:var(--orange);font-weight:600;flex:none}
.faq .a{display:flex;gap:12px;margin-top:12px;font-size:14.5px;color:var(--ink-2);line-height:1.75}
.faq .a::before{content:"A";font-family:var(--mono);color:var(--slate);font-weight:600;flex:none}

footer{background:var(--paper);border-top:1px solid var(--line);padding:30px 0 42px;font-size:12px;color:var(--slate)}
.foot-in{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.foot-in .mono{color:var(--ink)}
.foot-nav{display:flex;gap:18px;flex-wrap:wrap}
.foot-nav a{color:var(--slate)}.foot-nav a:hover{color:var(--orange-deep)}

/* ---------- reveal (progressive enhancement) ---------- */
.rv{opacity:1;transform:none}
.js .rv{opacity:0;transform:translateY(14px);transition:opacity .6s,transform .6s}
.js .rv.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .js .rv{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto!important}
  .chip.live::before,.flightpath,.vp-hud .br::before{animation:none}
  .row:hover{transform:none}
}