:root {
  color-scheme: dark light;
  --ink: #101619;
  --paper: #eeede7;
  --gutter: clamp(28px, 6.1vw, 104px);
  --capture-cycle: 1.2s;
  font-family: Arial, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ink); color: var(--paper); }
::selection { background: #a2b5b5; color: #101619; }
a { color: inherit; }
a:focus-visible { outline: 1px solid #d6dfda; outline-offset: 10px; }
.hero {
  min-height: 760px; height: 100svh; position: relative; isolation: isolate; overflow: hidden;
  background: radial-gradient(ellipse at 75% 49%, #25384180, transparent 52%), #101619;
}
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -2; pointer-events: none;
  background-image: linear-gradient(#a5bbca06 1px, transparent 1px), linear-gradient(90deg, #a5bbca06 1px, transparent 1px);
  background-size: 90px 90px;
  mask-image: radial-gradient(ellipse at 75% 50%, black, transparent 65%);
}
.masthead { position: absolute; top: 42px; left: var(--gutter); display: flex; align-items: center; gap: 12px; font-size: 11px; font-weight: 500; letter-spacing: .15em; color: #d0d3ce; }
.brand-symbol { width: 34px; height: 34px; }
.masthead-wordmark { font-size: 14px; font-weight: 500; letter-spacing: .015em; }
.hero-copy { position: absolute; left: var(--gutter); top: 50%; transform: translateY(-50%); z-index: 1; }
.brand-lockup { display: flex; align-items: center; gap: clamp(20px, 2vw, 32px); }
.hero-brand-mark { width: clamp(80px, 7.6vw, 112px); height: auto; flex: none; }
.brand-names { padding: 3px 0 0; }
h1 { font-weight: 500; font-size: clamp(30px, 3.05vw, 46px); letter-spacing: .14em; line-height: 1.35; margin: 0 0 14px; white-space: nowrap; }
.company-name { font-size: clamp(24px, 2.2vw, 33px); font-weight: 500; letter-spacing: .01em; line-height: 1.2; margin: 0; color: #b9c9ce; }
/* Layered optical illustration. No bitmap, canvas, or 3D runtime. */
.optics { position: absolute; width: min(44vw, 650px); aspect-ratio: 1; left: 52%; top: 50%; transform: translateY(-50%); pointer-events: none; z-index: -1; }
.optical-guide { position: absolute; inset: 0; border: 1px solid #91afbd10; border-radius: 50%; }
.optical-guide::before, .optical-guide::after { content: ""; position: absolute; background: #b1c7d32c; }
.optical-guide::before { width: 17px; height: 1px; top: 50%; left: -8px; }
.optical-guide::after { height: 17px; width: 1px; left: 50%; top: -8px; }
.optical-orbit { position: absolute; inset: 0; border-radius: 50%; background: conic-gradient(from 20deg, transparent 68%, #b1c7d308 82%, #c5d9e14d 92%, transparent 92.3%); mask-image: radial-gradient(closest-side, transparent calc(100% - 2px), black calc(100% - 1px)); animation: orbit 36s linear infinite; }
.capsule-head {
  position: absolute; inset: 8%; border-radius: 50%;
  background: radial-gradient(ellipse at 25% 18%, #738a9324, transparent 47%), radial-gradient(circle, #101a20 0 29%, #27383f 30%, #162127 33% 57%, #34474e 66%, #142027 69%);
  box-shadow: 0 0 0 1px #b4cbd14a, 0 0 0 5px #10191d, 0 0 0 6px #a0b8c321, 0 24px 70px #0007, inset 0 2px 3px #d7e7e24a;
}
.glass-rim { position: absolute; inset: 2.3%; border: 1px solid #b6cbd145; border-radius: 50%; box-shadow: inset 0 0 0 4px #111c2060, inset 0 0 0 5px #90aab01a; }
.calibration-ring { position: absolute; inset: 5.5%; border-radius: 50%; background: repeating-conic-gradient(#acc4ce36 0deg .35deg, transparent .35deg 3deg); mask-image: radial-gradient(closest-side, transparent 97%, black 97.5%); }
.lens {
  position: absolute; inset: 29%; border-radius: 50%; overflow: hidden;
  background: radial-gradient(circle, #071217 0 42%, #3c5866 43%, #142831 44% 49%, #708b963d 50%, #0b171d 51% 57%, #88a1af47 58%, #1b2e37 59% 65%, #8fa8b249 66%, #0e1b22 67%);
  box-shadow: 0 0 0 1px #bfd7dd5c, 0 0 0 5px #0a1419, 0 0 0 6px #99b9c427, 0 14px 30px #0008;
}
.aperture { position: absolute; inset: 24%; border-radius: 50%; background: conic-gradient(from 30deg, #48636d55, #08171d 16%, #45616d45 17%, #08171d 33%, #45616d45 34%, #08171d 50%, #45616d45 51%, #08171d 66%, #45616d45 67%, #08171d 83%, #45616d45 84%, #08171d); }
.aperture::after { content: ""; position: absolute; inset: 25%; border-radius: 50%; background: #060d12; box-shadow: 0 0 15px #314d5d66; }
.lens-inner { position: absolute; inset: 14%; border-radius: 50%; background: radial-gradient(ellipse at 30% 24%, #9ec2d563, transparent 35%), radial-gradient(ellipse at 69% 74%, #728da94d, transparent 30%); animation: capture-reflection var(--capture-cycle) linear infinite; }
.lens-highlight { position: absolute; left: 26%; top: 22%; width: 28%; height: 14%; border-radius: 50%; transform: rotate(-35deg); background: radial-gradient(ellipse, #d7e7e64a, transparent 70%); }
.led { position: absolute; width: 6%; height: 8%; margin: -4% 0 0 -3%; border: 1px solid #c8d9d650; border-radius: 24%; background: #6c84862b; transform: rotate(var(--angle)); isolation: isolate; box-shadow: 0 0 0 4px #0715197a, 0 0 0 5px #9db5b51a; }
.led i { position: absolute; inset: 12%; border-radius: 18%; background: #e0e8dc; box-shadow: 0 0 8px #dbece6a0; opacity: .18; animation: led-flash var(--capture-cycle) linear infinite; }
.led::before { content: ""; position: absolute; inset: -340%; border-radius: 50%; background: radial-gradient(ellipse, #dce8e37a 0, #afcfdb2c 22%, transparent 68%); opacity: 0; animation: flash-halo var(--capture-cycle) linear infinite; z-index: -1; }
.led-one { left: 50%; top: 20%; --angle: 0deg; }.led-two { left: 76%; top: 35%; --angle: 60deg; }.led-three { left: 76%; top: 65%; --angle: 120deg; }.led-four { left: 50%; top: 80%; --angle: 180deg; }.led-five { left: 24%; top: 65%; --angle: 240deg; }.led-six { left: 24%; top: 35%; --angle: 300deg; }
.glass-reflection { position: absolute; inset: 1%; border-radius: 50%; background: conic-gradient(from -48deg, transparent, #dce7ee24 28deg, transparent 64deg 230deg, #bfd8d912 262deg, transparent 290deg); mask-image: radial-gradient(circle, transparent 32%, black 68%, transparent 72%); animation: capture-reflection var(--capture-cycle) linear infinite; }
.capture-wave { position: absolute; inset: 8%; border: 1px solid #bbd5df; border-radius: 50%; opacity: 0; animation: capture-wave var(--capture-cycle) ease-out infinite; }
@keyframes orbit { to { transform: rotate(360deg); } }
@keyframes led-flash { 0%, 16%, 100% { opacity: .18; } 2%, 6% { opacity: 1; } }
@keyframes flash-halo { 0%, 18%, 100% { opacity: 0; } 2%, 6% { opacity: .95; } }
@keyframes capture-reflection { 0%, 20%, 100% { opacity: .3; } 2%, 6% { opacity: .95; } }
@keyframes capture-wave { 0% { transform: scale(1); opacity: 0; } 5% { opacity: .14; } 65%, 100% { transform: scale(1.17); opacity: 0; } }
.scroll-cue { position: absolute; bottom: 46px; left: var(--gutter); display: flex; align-items: center; gap: 15px; text-decoration: none; font-size: 10px; letter-spacing: .14em; color: #b6bebb; padding: 10px 0; }
.scroll-line { height: 1px; width: 36px; background: #778785; }
.scroll-cue svg { width: 14px; height: 14px; stroke: currentColor; stroke-width: 1; transition: transform .3s; }
.scroll-cue:hover svg { transform: translateY(3px); }

.about { position: relative; min-height: 690px; padding: 116px var(--gutter) 140px; background: var(--paper); color: var(--ink); display: grid; grid-template-columns: 1fr 1.35fr; gap: 48px; }
.section-label { display: flex; align-items: baseline; gap: 12px; padding-top: 10px; }
.section-dot { width: 5px; height: 5px; background: #748887; border-radius: 50%; align-self: flex-start; margin-top: 6px; }
h2 { margin: 0; font-size: 11px; font-weight: 400; letter-spacing: .13em; line-height: 1.6; }
h2 span { display: block; font-size: 9px; color: #6d7572; letter-spacing: .14em; margin-top: 9px; }
.statement { font-size: clamp(34px, 3.4vw, 53px); font-weight: 400; letter-spacing: .05em; line-height: 1.65; margin: 0 0 44px; }
.description { font-size: 20px; color: #59625e; line-height: 2.15; letter-spacing: .07em; margin: 0; }
.quiet-line { position: absolute; bottom: 90px; left: var(--gutter); right: var(--gutter); height: 1px; background: #d3d6ce; }
.quiet-line span { display: block; width: 48px; height: 1px; background: #788d89; }
footer { background: var(--paper); color: #717873; padding: 0 var(--gutter) 35px; display: flex; justify-content: space-between; gap: 20px; font-size: 9px; letter-spacing: .06em; line-height: 1.8; }
html[data-low-power] .optical-orbit, html[data-low-power] .capture-wave, html[data-low-power] .led::before { animation: none; }
html[data-paused] .optics *, html[data-paused] .optics *::before { animation-play-state: paused; }
@media (min-width:1700px) { .hero-copy { left: max(var(--gutter), calc((100vw - 1500px)/2)); } }
@media (max-width:700px) {
  .hero { min-height: 620px; max-height: 1050px; }
  .hero::before { background-size: 60px 60px; }
  .masthead { top: 28px; font-size: 10px; gap: 9px; }
  .brand-symbol { width: 30px; height: 30px; }
  .hero-copy { top: 26%; transform: translateY(-50%); right: var(--gutter); }
  h1 { font-size: clamp(27px, 7.3vw, 36px); letter-spacing: .12em; margin-bottom: 10px; }
  .brand-lockup { gap: 18px; }
  .hero-brand-mark { width: 68px; }
  .company-name { font-size: 23px; letter-spacing: .015em; }
  .optics { width: min(68vw, 340px, 44svh); left: 50%; top: 64%; transform: translate(-50%, -50%); }
  .scroll-cue { bottom: 28px; font-size: 9px; }

  .about { padding-top: 68px; padding-bottom: 114px; min-height: 590px; grid-template-columns: 1fr; gap: 50px; align-content: start; }
  .section-label { padding-top: 0; }
  h2 span { display: inline; margin-left: 16px; }
  .statement { font-size: 34px; line-height: 1.65; margin-bottom: 27px; }
  .description { font-size: 16px; line-height: 2; }
  .quiet-line { bottom: 54px; }
  footer { font-size: 8px; padding-bottom: 25px; gap: 12px; flex-wrap: wrap; }
}
@media (max-height:600px) and (min-width:701px) { .hero { min-height: 560px; }.masthead { top: 25px; }.hero-copy { top: 40%; }h1 { font-size: 34px; }.scroll-cue { bottom: 24px; } }
@media (prefers-reduced-motion:reduce) { html { scroll-behavior: auto; }.optics *, .optics *::before { animation: none !important; }.scroll-cue svg { transition: none; } }