/* ==========================================================================
   ORION ARM — index grid
   Direction C · 群落索引
   ========================================================================== */

@font-face{
  font-family:'Archivo';
  src:url('fonts/archivo-var-latin.woff2') format('woff2');
  font-weight:400 900;
  font-stretch:62% 125%;
  font-style:normal;
  font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+2074,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:'Archivo';
  src:url('fonts/archivo-var-latin-ext.woff2') format('woff2');
  font-weight:400 900;
  font-stretch:62% 125%;
  font-style:normal;
  font-display:swap;
  unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C4,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:'Plex Mono';
  src:url('fonts/plexmono-400-latin.woff2') format('woff2');
  font-weight:400;font-style:normal;font-display:swap;
}
@font-face{
  font-family:'Plex Mono';
  src:url('fonts/plexmono-500-latin.woff2') format('woff2');
  font-weight:500;font-style:normal;font-display:swap;
}

:root{
  --ink:#050505;
  --ink-1:#0a0b0a;
  --line:#1c231d;
  --line-2:#2a332b;
  --txt:#e9eae6;
  --txt-2:#9aa197;
  --txt-3:#8a9486;
  --acc:#b4e33d;
  --acc-soft:rgba(180,227,61,.10);
  --acc-line:rgba(180,227,61,.28);

  --f-display:'Archivo','PingFang SC','Hiragino Sans GB','Noto Sans SC','Microsoft YaHei',sans-serif;
  --f-body:'PingFang SC','Hiragino Sans GB','Noto Sans SC','Microsoft YaHei','Archivo',sans-serif;
  --f-mono:'Plex Mono','SFMono-Regular',ui-monospace,monospace;

  --pad:clamp(20px,4vw,48px);
  --dur:200ms;
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink);
  color:var(--txt);
  font-family:var(--f-body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,p,ol,ul,figure{margin:0}
ol,ul{padding:0;list-style:none}
a{color:inherit}
em{font-style:normal;color:var(--acc)}
::selection{background:var(--acc);color:#0a0b0a}

:focus-visible{outline:2px solid var(--acc);outline-offset:3px}

.sr,.skip{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip-path:inset(50%);white-space:nowrap;
}
.skip:focus{
  position:fixed;top:8px;left:8px;z-index:200;width:auto;height:auto;
  clip-path:none;background:var(--acc);color:#0a0b0a;
  padding:8px 14px;font-size:14px;font-weight:600;
}

.mono{
  font-family:var(--f-mono);
  font-size:12px;
  line-height:1.5;
  letter-spacing:.1em;
  color:var(--txt-3);
}

/* ── topbar ─────────────────────────────────────────────── */
.topbar{
  position:sticky;top:0;z-index:60;
  height:56px;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;
  padding:0 var(--pad);
  border-bottom:1px solid var(--line);
  background:rgba(5,5,5,.84);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.brand{display:flex;align-items:baseline;gap:14px;text-decoration:none;min-width:0}
.brand-mark{
  font-family:var(--f-display);font-weight:700;font-size:16px;
  letter-spacing:.02em;color:var(--txt);white-space:nowrap;
}
.brand-sub{
  font-size:12px;letter-spacing:.06em;color:var(--txt-3);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.nav{display:flex;align-items:center;gap:30px}
.nav a{
  position:relative;text-decoration:none;font-size:14px;color:var(--txt-2);
  padding:4px 0;transition:color var(--dur) var(--ease);
}
.nav a::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:1px;
  background:var(--acc);transform:scaleX(0);transform-origin:0 50%;
  transition:transform 260ms var(--ease);
}
.nav a:hover,.nav a:focus-visible{color:var(--txt)}
.nav a:hover::after,.nav a:focus-visible::after{transform:scaleX(1)}
.nav a.nav-lang{color:var(--acc);letter-spacing:.02em}
.nav a.nav-cta{
  color:var(--txt);border:1px solid var(--line-2);padding:7px 14px;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.nav a.nav-cta::after{display:none}
.nav a.nav-cta:hover,.nav a.nav-cta:focus-visible{
  border-color:var(--acc);color:var(--acc);background:var(--acc-soft);
}
.menu-btn{
  display:none;position:relative;width:44px;height:44px;
  background:none;border:1px solid var(--line-2);cursor:pointer;
  padding:0;flex-direction:column;align-items:center;justify-content:center;
}
.menu-bar{
  display:block;width:18px;height:1px;background:var(--txt);
  transition:transform 240ms var(--ease),opacity 160ms linear;
}
.menu-bar + .menu-bar{margin-top:6px}
.menu-btn[aria-expanded="true"] .menu-bar:first-child{transform:translateY(3px) rotate(45deg)}
.menu-btn[aria-expanded="true"] .menu-bar:nth-child(2){transform:translateY(-3px) rotate(-45deg)}

/* ── hero ───────────────────────────────────────────────── */
.hero{padding:0;border-bottom:1px solid var(--line)}
.hero-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  grid-template-rows:auto minmax(200px,1fr) auto;
  gap:1px;
  background:var(--line);
  min-height:min(calc(100svh - 56px),880px);
}
.cell{
  position:relative;
  background:var(--ink);
  padding:22px 24px 20px;
  min-width:0;
  overflow:hidden;
  transition:background 240ms var(--ease);
}
.cell-rule{
  position:relative;z-index:2;
  display:flex;justify-content:space-between;align-items:center;
  padding-bottom:14px;
}
.cell-label{color:var(--txt-3)}
.cell-note{font-size:13.5px;line-height:1.65;color:var(--txt-2);margin-top:auto}
.cell-foot{margin-top:auto;color:var(--txt-3)}

.c-identity{grid-area:1/1/3/3;display:flex;flex-direction:column}
.c-identity::after{
  content:'';position:absolute;right:-1px;top:0;bottom:0;width:1px;
  background:linear-gradient(to bottom,transparent,var(--acc-line),transparent);
  opacity:.5;
}
.wordmark{
  position:relative;z-index:1;
  font-family:var(--f-display);
  font-weight:700;
  font-size:clamp(52px,9.6vw,172px);
  line-height:.845;
  letter-spacing:-.05em;
  font-stretch:104%;
  color:var(--txt);
  margin:18px 0 0;
  text-transform:uppercase;
}
.wordmark span{display:block}
.identity-cn{
  position:relative;z-index:1;
  margin-top:24px;
  font-size:15px;letter-spacing:.34em;color:var(--acc);
  font-weight:500;
}
.identity-lead{
  position:relative;z-index:1;
  margin-top:22px;max-width:26ch;
  font-size:15.5px;line-height:1.7;color:var(--txt-2);
}
.c-identity .cell-foot{margin-top:auto;padding-top:18px}

.c-program{grid-area:1/3/2/5;display:flex;flex-direction:column}
.program-list{
  font-family:var(--f-display);
  font-size:clamp(26px,2.9vw,50px);
  font-weight:600;line-height:1.24;letter-spacing:-.02em;
  margin:18px 0 14px;
}
.program-fact{
  font-size:15.5px;line-height:1.6;color:var(--txt);
  max-width:none;margin-top:14px;text-wrap:pretty;
}
.program-fact em{color:var(--acc)}

.c-ilrs{grid-area:1/5/2/6;display:flex;flex-direction:column}

.ilrs-mark{
  font-family:var(--f-display);font-weight:700;font-size:clamp(28px,2.6vw,44px);
  letter-spacing:.05em;line-height:1;margin:16px 0 12px;
}

.tick{
  position:absolute;right:18px;bottom:18px;width:6px;height:6px;
  background:var(--acc);opacity:.9;
}

.c-topo{grid-area:2/3/3/6;padding:0}
.topo-head{
  position:absolute;inset:18px 24px auto 24px;z-index:3;
  display:flex;justify-content:space-between;gap:12px;
}
.c-topo canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.topo-robot{
  position:absolute;
  right:3%;bottom:-5%;
  height:102%;
  width:auto;
  z-index:2;
  pointer-events:none;
  filter:drop-shadow(0 22px 46px rgba(0,0,0,.7)) saturate(1.06);
}
.c-topo::after{
  content:'';position:absolute;z-index:1;pointer-events:none;
  right:-6%;bottom:-24%;width:46%;height:116%;
  background:radial-gradient(closest-side,rgba(201,162,39,.22),rgba(201,162,39,0) 70%);
}
.topo-foot{
  position:absolute;inset:auto 24px 16px 24px;z-index:3;
  display:flex;justify-content:space-between;gap:12px;color:var(--txt-3);
}

.c-path{
  grid-row:3;
  text-decoration:none;
  display:flex;flex-direction:column;
  padding:18px 20px 16px;
}
.c-path.p1{grid-column:1/2}
.c-path.p2{grid-column:2/3}
.c-path.p3{grid-column:3/4}
.c-path.p4{grid-column:4/5}
.c-path.p5{grid-column:5/6}
.c-path::before{
  content:'';position:absolute;left:0;right:0;top:0;height:2px;
  background:var(--line-2);transition:background 240ms var(--ease);
}
.c-path.p1{background:rgba(180,227,61,.055)}
.c-path.p1::before{background:var(--acc)}
.path-y{margin-bottom:8px}
.path-n{font-size:15px;font-weight:600;line-height:1.4;letter-spacing:-.005em}
.path-d{font-size:12.5px;color:var(--txt-3);margin-top:4px;line-height:1.5}
.c-path:hover,.c-path:focus-visible{background:rgba(180,227,61,.085)}
.c-path:hover .path-n{color:var(--acc)}
.c-path.p1:hover{background:rgba(180,227,61,.1)}

/* ── sections ───────────────────────────────────────────── */
section[id]{scroll-margin-top:56px}
.section{
  padding:clamp(72px,8.5vw,132px) var(--pad);
  border-bottom:1px solid var(--line);
}
.section-inner{max-width:1360px;margin:0 auto}
.section-head{
  display:grid;
  grid-template-columns:180px minmax(0,1fr);
  gap:clamp(24px,4vw,64px);
  align-items:start;
  margin-bottom:clamp(40px,5vw,72px);
}
.sec-index{color:var(--txt-3);padding-top:12px}
.h2{
  font-family:var(--f-display);
  font-size:clamp(27px,3.4vw,50px);
  font-weight:700;
  line-height:1.26;
  letter-spacing:-.022em;
  max-width:20em;
  text-wrap:balance;
}
.section-foot{
  margin-top:clamp(32px,4vw,56px);
  padding-top:24px;
  border-top:1px solid var(--line);
  font-size:15.5px;color:var(--txt-2);max-width:64ch;
}

/* ── 01 conditions ──────────────────────────────────────── */
.conditions{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.conditions li{padding:34px 32px 38px;border-right:1px solid var(--line)}
.conditions li:first-child{padding-left:0}
.conditions li:last-child{border-right:0;padding-right:0}
.cond-i{margin-bottom:18px}
.cond-t{
  font-size:clamp(22px,2.1vw,30px);font-weight:600;letter-spacing:.02em;
  line-height:1.2;margin-bottom:12px;
}
.cond-d{font-size:15px;color:var(--txt-2);max-width:30ch}

/* ── 02 product ─────────────────────────────────────────── */
.product-grid{
  display:grid;
  grid-template-columns:minmax(0,5.2fr) minmax(0,6.8fr);
  gap:clamp(32px,4.5vw,64px);
  align-items:start;
}
.shot{margin:0}
.shot-frame{position:relative;border:1px solid var(--line-2)}
.shot-frame img{width:100%;aspect-ratio:746/529;object-fit:cover}
.corner{position:absolute;width:14px;height:14px;border:1px solid var(--acc);opacity:.85}
.corner.tl{top:8px;left:8px;border-right:0;border-bottom:0}
.corner.tr{top:8px;right:8px;border-left:0;border-bottom:0}
.corner.bl{bottom:8px;left:8px;border-right:0;border-top:0}
.corner.br{bottom:8px;right:8px;border-left:0;border-top:0}
.shot figcaption{margin-top:12px;font-size:12px;letter-spacing:.08em;color:var(--txt-3)}

.spec{border-top:1px solid var(--line)}
.spec-row{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;
  padding:22px 0 24px;
  border-bottom:1px solid var(--line);
}
.spec-i{color:var(--acc);padding-top:3px}
.spec-t{font-size:17px;font-weight:600;letter-spacing:.01em;margin-bottom:8px}
.spec-d{font-size:15px;color:var(--txt-2);max-width:46ch}

.lines{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:clamp(28px,4vw,64px);
  margin-top:clamp(48px,6vw,88px);
}
.line-block{border-top:1px solid var(--line);padding-top:22px}
.line-t{font-size:clamp(18px,1.7vw,23px);font-weight:600;margin:10px 0 10px;letter-spacing:-.005em}
.line-d{font-size:15px;color:var(--txt-2);max-width:44ch}

.numbers{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:clamp(44px,5vw,72px);
  border-top:1px solid var(--line);
}
.numbers li{padding:24px 0 4px 24px;border-left:1px solid var(--line)}
.numbers li:first-child{border-left:0;padding-left:0}
.n-val{
  display:block;font-family:var(--f-display);font-weight:700;
  font-size:clamp(28px,3vw,44px);line-height:1;letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}
.n-u{font-size:.4em;font-weight:500;letter-spacing:0;margin-left:5px;color:var(--txt-2)}
.n-k{display:block;margin-top:12px;color:var(--txt-3)}

/* ── 03 path ────────────────────────────────────────────── */
.path{position:relative;border-bottom:1px solid var(--line);background:var(--ink-1)}
.path-pin{height:100svh;min-height:560px}
.path-stage{position:relative;height:100%;overflow:hidden;padding:0}

.path-head{position:absolute;top:clamp(24px,4vh,48px);left:var(--pad);right:var(--pad);z-index:4}
.path-head .sec-index{margin-bottom:14px;padding-top:0}
.path-head .h2{font-size:clamp(26px,3.1vw,44px)}

.units{position:absolute;inset:0;z-index:2}
.unit{
  position:absolute;left:var(--x);top:var(--y);
  width:58px;height:58px;margin:-29px 0 0 -29px;
  border:1px solid var(--line-2);
  background:rgba(5,5,5,.4);
  display:grid;place-items:center;
  transition:border-color 240ms var(--ease),background 240ms var(--ease);
}
.unit i{
  font-family:var(--f-mono);font-style:normal;font-size:12px;
  letter-spacing:.06em;color:var(--txt-3);
  transition:color 240ms var(--ease);
}
.unit.is-on{border-color:var(--acc-line);background:rgba(180,227,61,.06)}
.unit.is-on i{color:var(--acc)}

.swarm-links{
  position:absolute;inset:0;width:100%;height:100%;z-index:1;
  color:rgba(180,227,61,.22);
}
.swarm-links path{opacity:.55;vector-effect:non-scaling-stroke}

.swarm-rover{
  position:absolute;left:46%;top:47%;z-index:3;
  width:min(268px,30vw);height:auto;
  transform:translate(-50%,-50%);
  transform-origin:50% 50%;
  pointer-events:none;
  filter:drop-shadow(0 16px 34px rgba(0,0,0,.7)) saturate(1.04);
}
@media (max-width:900px){.swarm-rover{display:none}}

.readout{
  position:absolute;left:var(--pad);bottom:clamp(96px,15vh,148px);z-index:5;
  max-width:360px;
  border-top:1px solid var(--acc);
  padding-top:18px;
}
.readout-l{color:var(--acc);margin-bottom:2px}
.readout-c{color:var(--txt-3);margin-bottom:12px}
.readout-y{
  font-family:var(--f-display);font-weight:700;
  font-size:clamp(40px,5vw,72px);line-height:.95;letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;
}
.readout-t{font-size:clamp(17px,1.5vw,21px);font-weight:600;margin:14px 0 8px}
.readout-d{font-size:14.5px;color:var(--txt-2);max-width:34ch}

.stages{display:none}
.stages li{border-top:1px solid var(--line);padding:18px 0 20px}
.stages li:last-child{padding-bottom:0}
.stages-k{color:var(--acc);margin-bottom:8px}
.stages-t{font-size:17px;font-weight:600;line-height:1.4}
.stages-d{font-size:14px;color:var(--txt-2);margin-top:6px}

.axis-wrap{
  position:absolute;left:var(--pad);right:var(--pad);bottom:clamp(28px,5vh,44px);
  z-index:5;
}
.axis-bar{position:relative;height:1px;background:var(--line-2)}
.axis-bar span{
  position:absolute;left:0;top:0;height:1px;width:20%;
  background:var(--acc);
  transition:width 340ms var(--ease);
}
.axis{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:14px}
.axis-i{padding:0}
.axis-y{display:block;color:var(--txt-3);transition:color 240ms var(--ease)}
.axis-i.is-on .axis-y{color:var(--txt-2)}
.axis-i.is-current .axis-y{color:var(--acc);font-weight:500}
.axis-n{
  display:block;margin-top:4px;font-size:13px;color:var(--txt-3);
  font-family:var(--f-mono);letter-spacing:.08em;
}

/* ── 04 capability ──────────────────────────────────────── */
.caps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;background:var(--line);border-block:1px solid var(--line)}
.cap{background:var(--ink);padding:32px 28px 36px}
.cap:first-child{padding-left:0}
.cap-i{
  display:flex;justify-content:space-between;align-items:baseline;gap:16px;
  color:var(--acc);margin-bottom:40px;
}
.cap-i span:last-child{color:var(--txt-3);font-size:12px;letter-spacing:.06em}
.cap-t{font-size:clamp(19px,1.8vw,24px);font-weight:600;margin-bottom:12px}
.cap-d{font-size:15px;color:var(--txt-2);max-width:32ch}

.team{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px);
  margin-top:clamp(48px,6vw,84px);
}
.team-block{border-top:1px solid var(--line);padding-top:20px}
.team-d{font-size:14.5px;color:var(--txt-2);margin-top:10px;max-width:34ch}

/* ── 05 partner ─────────────────────────────────────────── */
.partners{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,56px)}
.partner{border-top:1px solid var(--line);padding-top:22px}
.partner-k{color:var(--acc)}
.partner-t{font-size:clamp(18px,1.7vw,23px);font-weight:600;margin:14px 0 10px}
.partner-d{font-size:15px;color:var(--txt-2);max-width:34ch}

.revenue{margin-top:clamp(56px,7vw,96px);border-top:1px solid var(--line);padding-top:24px}
.rev-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:var(--line);margin-top:22px}
.rev-list li{
  background:var(--ink);padding:22px 20px 26px;
  display:flex;flex-direction:column;gap:6px;
}
.rev-list li:first-child{padding-left:0}
.rev-n{color:var(--txt-3)}
.rev-t{font-size:15.5px;font-weight:600;line-height:1.4;margin-top:22px}
.rev-d{font-size:13.5px;color:var(--txt-2)}

/* ── vision ─────────────────────────────────────────────── */
.vision{
  position:relative;min-height:76svh;display:grid;align-items:end;
  overflow:hidden;border-bottom:1px solid var(--line);
}
.vision-img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:.92;filter:grayscale(.35) contrast(1.18) brightness(1.02);
}
.vision::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(5,5,5,.97) 0%,rgba(5,5,5,.86) 22%,rgba(5,5,5,.45) 48%,rgba(5,5,5,.08) 78%,rgba(5,5,5,.30) 100%);
}
.vision-body{position:relative;z-index:2;padding:0 var(--pad) clamp(56px,7vw,88px)}
.vision-t{
  font-family:var(--f-display);
  font-size:clamp(30px,4.2vw,60px);font-weight:700;line-height:1.18;
  letter-spacing:-.03em;margin:16px 0 14px;
}
.vision-d{font-size:16px;color:var(--txt-2);letter-spacing:.04em}

/* ── contact ────────────────────────────────────────────── */
.contact-grid{
  display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:clamp(32px,5vw,80px);align-items:start;
}
.contact-rows{border-top:1px solid var(--line)}
.contact-row{
  display:grid;grid-template-columns:160px minmax(0,1fr);gap:24px;
  padding:20px 0;border-bottom:1px solid var(--line);
}
.ct-k{color:var(--txt);font-size:12px}
.ct-d{font-size:14.5px;color:var(--txt-2)}

.contact-act{display:flex;flex-direction:column;align-items:flex-start;gap:14px;padding-top:4px}
.btn{
  display:inline-flex;align-items:center;gap:14px;
  padding:15px 22px;
  background:var(--acc);color:#0a0b0a;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  text-decoration:none;border:1px solid var(--acc);
  transition:background var(--dur) var(--ease),transform 140ms var(--ease),color var(--dur) var(--ease);
}
.btn svg{transition:transform 240ms var(--ease)}
.btn:hover{background:#c6f25a}
.btn:hover svg{transform:translate(2px,-2px)}
.btn:active{transform:scale(.98)}
.contact-note{color:var(--txt-3);letter-spacing:.06em;text-transform:none}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 20px;margin-top:2px;
  border:1px solid var(--line-2);color:var(--txt);
  font-size:14.5px;text-decoration:none;
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.btn-ghost:hover{border-color:var(--acc);color:var(--acc);background:var(--acc-soft)}

/* ── footer ─────────────────────────────────────────────── */
.footer{padding:36px var(--pad) 44px;background:var(--ink)}
.footer-inner{
  display:flex;align-items:baseline;justify-content:space-between;gap:24px;flex-wrap:wrap;
  max-width:1360px;margin:0 auto;
}
.footer-mark{font-family:var(--f-display);font-weight:700;font-size:15px;letter-spacing:.04em}
.footer-sub{font-size:12.5px;color:var(--txt-3);letter-spacing:.04em}
.footer-copy{color:var(--txt-3)}

/* ── responsive ─────────────────────────────────────────── */
@media (max-width:1100px){
  .section-head{grid-template-columns:120px minmax(0,1fr)}
  .product-grid{grid-template-columns:1fr;gap:40px}
  .topo-robot{right:-2%;height:82%}
}

/* hero stacks before the nav collapses */
@media (max-width:1024px){
  .hero-grid{
    display:flex;flex-direction:column;gap:1px;min-height:0;
  }
  .c-identity{min-height:clamp(300px,46svh,430px)}
  .c-program,.c-ilrs{padding:22px 20px 20px}
  .c-topo{height:clamp(280px,46vh,380px);padding:0}
  .topo-robot{right:2%;height:96%}
  .c-path{padding:16px 20px 18px;border-top:1px solid var(--line)}
  .c-path::before{display:none}
}

@media (max-width:900px){

  .nav{
    position:absolute;top:56px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:#050505;
    border-bottom:1px solid var(--line);
    min-height:calc(100svh - 56px);max-height:calc(100svh - 56px);overflow:auto;
    box-shadow:0 24px 48px rgba(0,0,0,.6);
    padding:8px var(--pad) 20px;
    transform:translateY(-8px);opacity:0;pointer-events:none;
    transition:opacity 180ms var(--ease),transform 220ms var(--ease);
  }
  .nav.is-open{opacity:1;transform:none;pointer-events:auto}
  .nav a{padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav a::after{display:none}
  .nav a.nav-lang{color:var(--acc);letter-spacing:.02em}
.nav a.nav-cta{border:0;border-bottom:1px solid var(--line);padding:14px 0;color:var(--acc);margin-top:auto}
  .menu-btn{display:flex}
  .brand-sub{display:none}
  .c-identity{padding:26px 20px 24px}
  .wordmark{font-size:clamp(46px,14vw,84px)}
  .c-identity .cell-foot{margin-top:auto;padding-top:18px}


  .section{padding-block:64px}
  .section-head{grid-template-columns:1fr;gap:16px}
  .sec-index{padding-top:0}
  .h2{font-size:clamp(26px,7.4vw,36px)}
  .conditions{grid-template-columns:1fr}
  .conditions li{padding:24px 0 28px;border-right:0;border-bottom:1px solid var(--line)}
  .conditions li:last-child{border-bottom:0;padding-bottom:0}
  .cond-d{max-width:none}
  .lines{grid-template-columns:1fr;gap:28px}
  .numbers{grid-template-columns:repeat(2,minmax(0,1fr))}
  .numbers li{padding:20px 0 4px 20px}
  .numbers li:nth-child(odd){border-left:0;padding-left:0}
  .numbers li:nth-child(n+3){border-top:1px solid var(--line);margin-top:16px}

  .path-pin{height:auto;min-height:0}
  .path-stage{padding:64px var(--pad) 56px;height:auto}
  .path-head,.readout,.stages{display:none}
.stages li{border-top:1px solid var(--line);padding:18px 0 20px}
.stages li:last-child{padding-bottom:0}
.stages-k{color:var(--acc);margin-bottom:8px}
.stages-t{font-size:17px;font-weight:600;line-height:1.4}
.stages-d{font-size:14px;color:var(--txt-2);margin-top:6px}

.axis-wrap{position:static;max-width:none}
  .path-head{margin-bottom:32px}
  .units,.swarm-links{display:none}
  .readout,.axis-wrap{display:none}
  .stages{display:block}
  .readout-y{font-size:44px}
  .axis{grid-template-columns:repeat(5,minmax(0,1fr));gap:0;margin-top:12px}
  .axis-n{font-size:12px}
  .stages{display:none}
.stages li{border-top:1px solid var(--line);padding:18px 0 20px}
.stages li:last-child{padding-bottom:0}
.stages-k{color:var(--acc);margin-bottom:8px}
.stages-t{font-size:17px;font-weight:600;line-height:1.4}
.stages-d{font-size:14px;color:var(--txt-2);margin-top:6px}

.axis-wrap{margin-top:4px}

  .caps{grid-template-columns:1fr;background:none;border-block:0}
  .cap{padding:24px 0;border-top:1px solid var(--line)}
  .cap:first-child{padding-left:0}
  .cap-i{margin-bottom:18px}
  .team{grid-template-columns:1fr;gap:24px}
  .partners{grid-template-columns:1fr;gap:28px}
  .rev-list{grid-template-columns:1fr;background:none}
  .rev-list li{padding:18px 0 20px;border-top:1px solid var(--line)}
  .rev-list li:first-child{border-top:0}
  .rev-t{margin-top:8px}
  .vision{min-height:62svh}
  .contact-grid{grid-template-columns:1fr;gap:36px}
  .contact-row{grid-template-columns:1fr;gap:6px}
  .footer-inner{flex-direction:column;gap:10px}
}

@media (max-width:420px){
  .numbers{grid-template-columns:1fr}
  .numbers li{border-left:0;padding-left:0}
  .numbers li:nth-child(n+2){border-top:1px solid var(--line);margin-top:16px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
}