/* ============================================================
   DraMax / MACH SERIES
   High-speed FPV propulsion — visual system
   ============================================================ */

@font-face {
  font-family: "HarmonyOS Sans SC";
  src: url("../fonts/HarmonyOS-Sans-SC-Regular.woff") format("woff");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "HarmonyOS Sans SC";
  src: url("../fonts/HarmonyOS-Sans-SC-Bold.woff") format("woff");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #08090a;
  --ink-2: #101114;
  --ink-3: #17181b;
  --paper: #f2efe8;
  --paper-2: #e7e2d8;
  --white: #f7f5f0;
  --gold: #c8a46b;
  --gold-2: #e6c995;
  --orange: #ff4b2b;
  --red: #d9432b;
  --muted: #85827b;
  --line: rgba(255, 255, 255, 0.14);
  --line-dark: rgba(8, 9, 10, 0.15);
  --gutter: clamp(20px, 4.4vw, 76px);
  --max: 1480px;
  --nav-h: 80px;
  --topbar-h: 32px;
  --header: calc(var(--nav-h) + var(--topbar-h));
  --ease: cubic-bezier(0.19, 1, 0.22, 1);
  --ease-2: cubic-bezier(0.65, 0.05, 0, 1);
  --font-cn: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-display: "Bahnschrift", "DIN Alternate", "Roboto Condensed", "Arial Narrow", "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Consolas", "SFMono-Regular", "Liberation Mono", monospace;
}

* { box-sizing: border-box; }
*::selection { background: var(--gold); color: var(--ink); }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-cn);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
body.is-locked { overflow: hidden; }
img, video, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { border: 0; background: none; cursor: pointer; }
h1, h2, h3, h4, p, figure, blockquote { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
table { border-collapse: collapse; width: 100%; }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 4px; }
section[id], div[id] { scroll-margin-top: calc(var(--header) + 18px); }
.desktop-only { display: inline; }

/* film grain */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.92' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.7'/%3E%3C/svg%3E");
  background-size: 220px 220px;
  mix-blend-mode: overlay;
}

.container { width: min(var(--max), calc(100% - var(--gutter) * 2)); margin-inline: auto; }
.section { position: relative; padding: clamp(100px, 12vw, 190px) 0; }
.section--paper { background: var(--paper); color: var(--ink); }
.section--dark { background: var(--ink); color: var(--white); }
.section--tight { padding-block: clamp(72px, 8vw, 120px); }

.display {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.94;
  letter-spacing: -0.045em;
  text-wrap: balance;
}
.serif-cn { font-family: var(--font-cn); font-weight: 700; letter-spacing: -0.045em; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
}
.eyebrow::before { content: ""; width: 30px; height: 1px; background: currentColor; opacity: 0.75; }
.eyebrow--plain::before { display: none; }
.kicker {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.micro {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.gold { color: var(--gold); }
.orange { color: var(--orange); }
.muted { color: var(--muted); }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: 12px; left: 12px; z-index: 10001;
  padding: 12px 18px; background: var(--gold); color: var(--ink);
  transform: translateY(-200%); transition: transform 0.25s;
}
.skip-link:focus-visible { transform: none; }

/* buttons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  min-height: 54px;
  padding: 0 26px;
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease), transform 0.35s var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn--gold { background: var(--gold); color: var(--ink); }
.btn--gold:hover { background: var(--white); }
.btn--ghost { border-color: rgba(255, 255, 255, 0.36); color: var(--white); background: rgba(255, 255, 255, 0.02); }
.btn--ghost:hover { border-color: var(--white); background: rgba(255, 255, 255, 0.08); }
.btn--dark { background: var(--ink); color: var(--white); }
.btn--dark:hover { background: var(--gold); color: var(--ink); }
.btn--paper { border-color: rgba(8, 9, 10, 0.24); color: var(--ink); }
.btn--paper:hover { background: var(--ink); color: var(--white); border-color: var(--ink); }
.btn__arrow { width: 18px; height: 18px; flex: 0 0 auto; transition: transform 0.35s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }
.text-link {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  padding-bottom: 7px; border-bottom: 1px solid currentColor;
  transition: color 0.3s, gap 0.3s;
}
.text-link:hover { color: var(--gold); gap: 18px; }

/* ==================== loader ==================== */
.loader {
  position: fixed; inset: 0; z-index: 10000;
  display: grid; place-items: center;
  background: var(--ink);
  transition: opacity 0.7s var(--ease), visibility 0.7s;
}
.loader.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.loader__inner { width: min(340px, 72vw); text-align: center; }
.loader__mark {
  width: 54px; height: 54px; margin: 0 auto 22px;
  display: grid; place-items: center;
}
.loader__word {
  font-family: var(--font-display); font-style: italic; font-size: 30px;
  letter-spacing: 0.02em; color: var(--white);
}
.loader__word span { color: var(--gold); }
.loader__bar {
  height: 1px; width: 100%; margin-top: 28px; background: rgba(255, 255, 255, 0.16); overflow: hidden;
}
.loader__bar i { display: block; height: 100%; width: 100%; background: var(--gold); transform-origin: left; animation: loaderBar 1.1s var(--ease-2) both; }
@keyframes loaderBar { from { transform: scaleX(0); } to { transform: scaleX(1); } }

/* ==================== header ==================== */
.topbar {
  position: relative; z-index: 2;
  height: 32px; display: flex; align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(8, 9, 10, 0.74);
  backdrop-filter: blur(16px);
}
.topbar__inner {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.62);
}
.topbar b { color: var(--gold); font-weight: 400; }
.topbar__right { display: flex; gap: 26px; }
.topbar__right span { display: inline-flex; align-items: center; gap: 7px; }
.status-dot { width: 5px; height: 5px; border-radius: 50%; background: #63c77d; box-shadow: 0 0 0 3px rgba(99, 199, 125, 0.12); }

.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  color: var(--white);
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.56), transparent);
  opacity: 1; transition: opacity 0.4s;
}
.site-header.is-scrolled { background: rgba(8, 9, 10, 0.9); border-bottom-color: rgba(255, 255, 255, 0.1); backdrop-filter: blur(22px) saturate(1.1); }
.site-header.is-scrolled::before { opacity: 0; }
.page-product .site-header { background: rgba(8, 9, 10, 0.94); border-bottom-color: rgba(255, 255, 255, 0.1); backdrop-filter: blur(22px); }
.page-product .site-header::before { opacity: 0; }

.nav-shell {
  width: min(var(--max), calc(100% - var(--gutter) * 2));
  margin-inline: auto;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 30px;
}
.brand { display: inline-flex; align-items: center; gap: 11px; line-height: 1; }
.brand__mark { width: 26px; height: 30px; flex: 0 0 auto; }
.brand__type {
  font-family: var(--font-display); font-style: italic; font-weight: 700;
  font-size: 24px; letter-spacing: 0.01em; color: var(--white);
}
.brand__type span { color: var(--gold); }
.brand__sub {
  margin-left: 8px; padding-left: 11px; border-left: 1px solid rgba(255, 255, 255, 0.22);
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase; line-height: 1.5;
}
.nav { display: flex; align-items: center; gap: clamp(20px, 2.4vw, 40px); }
.nav a {
  position: relative; padding: 8px 0;
  font-size: 12px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.7);
  transition: color 0.25s;
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: var(--gold); transform: scaleX(0); transform-origin: right;
  transition: transform 0.45s var(--ease);
}
.nav a:hover { color: var(--white); }
.nav a:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-actions { display: flex; align-items: center; gap: 18px; }
.cart-btn {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase;
  color: rgba(255, 255, 255, 0.82);
}
.cart-btn svg { width: 17px; height: 17px; }
.cart-count {
  min-width: 18px; height: 18px; padding: 0 5px; border-radius: 20px;
  display: inline-grid; place-items: center;
  background: var(--gold); color: var(--ink); font-size: 9px; font-weight: 700;
}
.nav-cta { min-height: 42px; padding: 0 18px; font-size: 10px; }
.burger { display: none; width: 42px; height: 42px; place-items: center; border: 1px solid rgba(255, 255, 255, 0.24); }
.burger span { display: block; width: 19px; height: 1px; background: var(--white); position: relative; }
.burger span::before, .burger span::after { content: ""; position: absolute; left: 0; width: 100%; height: 1px; background: var(--white); transition: transform 0.3s; }
.burger span::before { top: -6px; }
.burger span::after { top: 6px; }
.burger.is-open span { background: transparent; }
.burger.is-open span::before { transform: translateY(6px) rotate(45deg); }
.burger.is-open span::after { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 999;
  background: rgba(8, 9, 10, 0.98); backdrop-filter: blur(18px);
  display: flex; flex-direction: column; justify-content: center;
  padding: calc(var(--header) + 50px) var(--gutter) 40px;
  opacity: 0; visibility: hidden; transition: opacity 0.4s, visibility 0.4s;
}
.mobile-menu.is-open { opacity: 1; visibility: visible; }
.mobile-menu a {
  display: flex; align-items: baseline; gap: 16px;
  padding: 18px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-display); font-size: clamp(30px, 8vw, 44px); letter-spacing: -0.02em;
}
.mobile-menu a small { font-family: var(--font-mono); font-size: 9px; color: var(--gold); letter-spacing: 0.1em; }
.mobile-menu__meta { margin-top: 38px; color: var(--muted); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }

/* ==================== hero ==================== */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: flex-end;
  padding: calc(var(--header) + 64px) var(--gutter) 0;
  background: #000; color: var(--white); overflow: hidden;
  isolation: isolate;
}
.hero__media { position: absolute; inset: 0; z-index: -2; background: #000; }
.hero__media video, .hero__media img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(0.85) contrast(1.04) brightness(0.92);
  transform: scale(1.03);
}
.hero__scrim {
  position: absolute; inset: 0; z-index: -1;
  background:
    linear-gradient(90deg, rgba(4, 5, 6, 0.89) 0%, rgba(4, 5, 6, 0.55) 38%, rgba(4, 5, 6, 0.08) 70%, rgba(4, 5, 6, 0.34) 100%),
    linear-gradient(0deg, rgba(4, 5, 6, 0.95) 0%, rgba(4, 5, 6, 0.2) 28%, transparent 58%),
    linear-gradient(180deg, rgba(4, 5, 6, 0.6) 0%, transparent 24%);
}
.hero__spotlight {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(360px circle at var(--mx, 70%) var(--my, 42%), rgba(200, 164, 107, 0.13), transparent 65%);
  mix-blend-mode: screen;
}
.hero__inner { position: relative; z-index: 2; width: 100%; display: flex; flex-direction: column; justify-content: flex-end; }
.hero__content { position: relative; z-index: 2; width: min(100%, 1120px); margin-top: auto; padding-bottom: clamp(42px, 8vh, 88px); }
.hero .eyebrow { margin-bottom: clamp(24px, 4vh, 42px); color: var(--gold-2); }
.hero__title {
  font-family: var(--font-display);
  font-size: clamp(4.2rem, 11.6vw, 12rem);
  line-height: 0.97;
  letter-spacing: -0.06em;
  font-weight: 700;
  text-transform: none;
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span { display: inline-block; transform: translateY(105%); animation: heroLine 1.25s var(--ease) 0.15s forwards; }
.hero__title .line:nth-child(2) > span { animation-delay: 0.28s; }
.hero__title .line:nth-child(2) > span:nth-child(2) { animation-delay: 0.34s; }
.hero__title .line:nth-child(2) { margin-left: 0; }
.hero__title .accent { color: var(--gold); }
.hero__title .dot { color: var(--orange); }
@keyframes heroLine { to { transform: translateY(0); } }
.hero__lede {
  max-width: 46ch; margin-top: clamp(24px, 3.6vh, 38px);
  font-size: clamp(15px, 1.25vw, 18px); line-height: 1.8; color: rgba(255, 255, 255, 0.68);
  opacity: 0; transform: translateY(18px); animation: fadeUp 0.9s var(--ease) 0.82s forwards;
}
.hero__actions {
  display: flex; align-items: center; flex-wrap: wrap; gap: 12px;
  margin-top: clamp(28px, 4vh, 46px);
  opacity: 0; transform: translateY(18px); animation: fadeUp 0.9s var(--ease) 0.98s forwards;
}
.hero__actions .btn { min-width: 190px; }
.play-btn { display: inline-flex; align-items: center; gap: 14px; padding: 0 8px; color: var(--white); }
.play-btn__icon {
  position: relative; width: 54px; height: 54px; border: 1px solid rgba(255, 255, 255, 0.42); border-radius: 50%;
  display: grid; place-items: center; transition: background 0.35s, border-color 0.35s, transform 0.35s;
}
.play-btn__icon::before { content: ""; width: 0; height: 0; margin-left: 3px; border-left: 8px solid var(--white); border-top: 5px solid transparent; border-bottom: 5px solid transparent; }
.play-btn:hover .play-btn__icon { background: var(--gold); border-color: var(--gold); transform: scale(1.05); }
.play-btn:hover .play-btn__icon::before { border-left-color: var(--ink); }
.play-btn span:last-child { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.15em; text-transform: uppercase; }
.hero__meta {
  display: grid; grid-template-columns: 1fr auto auto; align-items: end; gap: 30px;
  padding: 24px 0 30px; border-top: 1px solid rgba(255, 255, 255, 0.18);
}
.hero__stats { display: flex; align-items: flex-end; flex-wrap: wrap; gap: clamp(28px, 4vw, 70px); }
.hero-stat { display: flex; flex-direction: column; gap: 4px; }
.hero-stat__num {
  font-family: var(--font-display); font-size: clamp(26px, 2.6vw, 38px); line-height: 1;
  letter-spacing: -0.03em; color: var(--white); font-variant-numeric: tabular-nums;
}
.hero-stat__num small { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; color: var(--gold); margin-left: 6px; }
.hero-stat__label { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.16em; color: rgba(255, 255, 255, 0.42); text-transform: uppercase; }
.hero__scroll {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.5); text-transform: uppercase;
}
.hero__scroll i { display: block; width: 1px; height: 38px; background: rgba(255, 255, 255, 0.3); overflow: hidden; position: relative; }
.hero__scroll i::after { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 50%; background: var(--gold); animation: scrollLine 1.8s var(--ease) infinite; }
@keyframes scrollLine { 0% { transform: translateY(-100%); } 60%, 100% { transform: translateY(200%); } }
.hero__social { display: flex; gap: 18px; align-items: center; }
.hero__social a { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.5); transition: color 0.25s; }
.hero__social a:hover { color: var(--gold); }
.hero__hud {
  position: absolute; z-index: 3; top: calc(var(--header) + 42px); right: var(--gutter);
  display: flex; align-items: center; gap: 18px;
  font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.5);
  text-transform: uppercase; opacity: 0; animation: fadeIn 1s 1.2s forwards;
}
.hero__hud b { color: var(--white); font-weight: 400; }
.rec { display: inline-flex; align-items: center; gap: 7px; color: var(--orange); }
.rec i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; animation: pulse 1.5s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }
.hero__side {
  position: absolute; right: calc(var(--gutter) - 12px); top: 46%; z-index: 3;
  transform: translateY(-50%); writing-mode: vertical-rl;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.32em; color: rgba(255, 255, 255, 0.3);
  text-transform: uppercase;
}
.hero__side::after { content: ""; display: block; width: 1px; height: 54px; margin: 14px auto 0; background: linear-gradient(var(--gold), transparent); }
.hero__corner { position: absolute; z-index: 2; width: 34px; height: 34px; border-color: rgba(200, 164, 107, 0.55); border-style: solid; pointer-events: none; }
.hero__corner--tl { top: calc(var(--header) + 32px); left: var(--gutter); border-width: 1px 0 0 1px; }
.hero__corner--br { right: var(--gutter); bottom: 88px; border-width: 0 1px 1px 0; }

@keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { to { opacity: 1; } }

/* ==================== ticker ==================== */
.ticker {
  position: relative; overflow: hidden; padding: 16px 0;
  border-block: 1px solid rgba(255, 255, 255, 0.11); background: #060708;
}
.ticker__track { display: flex; align-items: center; width: max-content; animation: tickerMove 36s linear infinite; }
.ticker__group { display: flex; align-items: center; flex: 0 0 auto; }
.ticker span {
  display: inline-block; padding: 0 22px;
  font-family: var(--font-display); font-size: clamp(34px, 5.4vw, 72px); font-weight: 700; line-height: 1;
  letter-spacing: -0.03em; text-transform: uppercase; color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.22);
}
.ticker span.is-gold { color: var(--gold); -webkit-text-stroke: 0; }
.ticker b { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--gold); margin: 0 6px; }
@keyframes tickerMove { to { transform: translateX(-50%); } }

/* ==================== intro / manifesto ==================== */
.manifesto { overflow: hidden; }
.manifesto__top { display: flex; justify-content: space-between; gap: 30px; margin-bottom: clamp(56px, 8vw, 110px); }
.manifesto__grid { display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr); gap: clamp(44px, 8vw, 130px); align-items: start; }
.manifesto h2 {
  font-size: clamp(3.25rem, 6.4vw, 7.4rem);
  line-height: 0.98; letter-spacing: -0.06em;
}
.manifesto h2 em { font-style: normal; color: var(--gold); }
.manifesto__copy { padding-top: clamp(8px, 3vw, 34px); max-width: 560px; }
.manifesto__copy p { font-size: clamp(15px, 1.2vw, 18px); line-height: 1.9; color: #4e4c47; }
.manifesto__copy p + p { margin-top: 18px; }
.manifesto__copy .text-link { margin-top: 32px; color: var(--ink); }
.manifesto__media { position: relative; margin-top: clamp(30px, 6vw, 60px); }
.manifesto__frame { position: relative; overflow: hidden; aspect-ratio: 4 / 5; background: #d9d4c9; }
.manifesto__frame img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease); }
.manifesto__media:hover .manifesto__frame img { transform: scale(1.035); }
.manifesto__frame::after { content: ""; position: absolute; inset: 12px; border: 1px solid rgba(255, 255, 255, 0.36); pointer-events: none; }
.manifesto__caption { display: flex; justify-content: space-between; gap: 20px; padding-top: 14px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.manifesto__stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px;
  margin-top: clamp(54px, 8vw, 110px); padding-top: 28px; border-top: 1px solid var(--line-dark);
}
.metric__num {
  font-family: var(--font-display); font-size: clamp(52px, 6vw, 88px); line-height: 0.9;
  letter-spacing: -0.05em; color: var(--ink); font-variant-numeric: tabular-nums;
}
.metric__num small { font-size: 0.32em; letter-spacing: 0; color: var(--gold); margin-left: 8px; }
.metric__label { margin-top: 12px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }

/* ==================== film ==================== */
.film {
  position: relative; min-height: min(92svh, 980px); display: flex; align-items: stretch;
  padding: clamp(100px, 12vw, 170px) 0 44px; background: #000; color: var(--white);
  overflow: hidden; isolation: isolate;
}
.film__media { position: absolute; inset: 0; z-index: -2; }
.film__media video, .film__media img { width: 100%; height: 100%; object-fit: cover; opacity: 0.82; filter: saturate(0.84) brightness(0.82); }
.film::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.78), rgba(0, 0, 0, 0.06) 55%, rgba(0, 0, 0, 0.48)), linear-gradient(0deg, rgba(0, 0, 0, 0.8), transparent 45%);
}
.film__inner { position: relative; z-index: 2; display: flex; flex-direction: column; justify-content: space-between; gap: 80px; }
.film__head { display: flex; justify-content: space-between; align-items: flex-start; gap: 30px; }
.film__title { font-size: clamp(3rem, 6.3vw, 7rem); line-height: 0.98; letter-spacing: -0.055em; max-width: 8em; }
.film__index { text-align: right; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; color: rgba(255, 255, 255, 0.45); text-transform: uppercase; }
.film__index b { display: block; margin-top: 5px; color: var(--gold); font-weight: 400; }
.film__play-wrap { position: absolute; inset: 0; display: grid; place-items: center; pointer-events: none; }
.film__play {
  pointer-events: auto; position: relative; width: clamp(88px, 9vw, 124px); height: clamp(88px, 9vw, 124px);
  border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.6);
  display: grid; place-items: center; transition: background 0.4s, transform 0.5s var(--ease), border-color 0.4s;
}
.film__play::before { content: ""; width: 0; height: 0; margin-left: 5px; border-left: 15px solid var(--white); border-top: 9px solid transparent; border-bottom: 9px solid transparent; transition: border-left-color 0.4s; }
.film__play::after { content: ""; position: absolute; inset: -13px; border-radius: 50%; border: 1px solid rgba(255, 255, 255, 0.18); animation: ringPulse 2.6s var(--ease) infinite; }
.film__play:hover { background: var(--gold); border-color: var(--gold); transform: scale(1.06); }
.film__play:hover::before { border-left-color: var(--ink); }
@keyframes ringPulse { 0% { transform: scale(0.92); opacity: 0.7; } 70% { transform: scale(1.14); opacity: 0; } 100% { opacity: 0; } }
.film__foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; border-top: 1px solid rgba(255, 255, 255, 0.22); padding-top: 20px; }
.film__caption { max-width: 44ch; font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.62); }
.film__meta { display: flex; gap: 34px; text-align: right; }
.film__meta div { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.4); text-transform: uppercase; }
.film__meta b { display: block; margin-bottom: 4px; color: var(--white); font-size: 12px; font-weight: 400; letter-spacing: 0.06em; }

/* ==================== system ==================== */
.system__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 30px; margin-bottom: clamp(40px, 6vw, 76px); }
.system h2 { font-size: clamp(3rem, 6vw, 6.8rem); line-height: 0.98; letter-spacing: -0.055em; }
.system__lead { max-width: 380px; font-size: 15px; line-height: 1.8; color: #5b5852; }
.system__cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.category-card {
  position: relative; display: flex; flex-direction: column; justify-content: flex-end;
  aspect-ratio: 3 / 4; min-height: 480px; padding: 26px; overflow: hidden;
  color: var(--white); background: #111; isolation: isolate;
}
.category-card__img { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; object-fit: cover; transition: transform 1.4s var(--ease), filter 1s; filter: saturate(0.85) brightness(0.84); }
.category-card::after { content: ""; position: absolute; inset: 0; z-index: 1; background: linear-gradient(0deg, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.08) 56%, rgba(0, 0, 0, 0.36)); transition: opacity 0.6s; }
.category-card:hover .category-card__img { transform: scale(1.055); filter: saturate(1) brightness(0.92); }
.category-card:hover::after { opacity: 0.9; }
.category-card__top { position: absolute; top: 24px; left: 26px; right: 26px; z-index: 3; display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.category-card__index { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; color: var(--gold); }
.category-card__tag { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.14em; color: rgba(255, 255, 255, 0.48); text-transform: uppercase; }
.category-card__body { position: relative; z-index: 2; }
.category-card h3 { font-size: clamp(34px, 3.5vw, 52px); line-height: 1; letter-spacing: -0.04em; font-weight: 700; }
.category-card p { margin-top: 12px; max-width: 28ch; font-size: 13px; line-height: 1.7; color: rgba(255, 255, 255, 0.6); }
.category-card__link { display: flex; align-items: center; justify-content: space-between; margin-top: 24px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, 0.2); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--white); }
.category-card__link svg { width: 20px; height: 20px; transition: transform 0.35s; }
.category-card:hover .category-card__link svg { transform: translate(3px, -3px); }

/* ==================== shop ==================== */
.shop { background: #07080a; color: var(--white); }
.shop__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 34px; }
.shop h2 { font-size: clamp(3rem, 6vw, 6.8rem); line-height: 0.98; letter-spacing: -0.055em; }
.shop__note { max-width: 300px; font-size: 13px; line-height: 1.75; color: rgba(255, 255, 255, 0.45); text-align: right; }
.filters { display: flex; flex-wrap: wrap; gap: 26px; border-bottom: 1px solid rgba(255, 255, 255, 0.13); margin-bottom: 30px; }
.filter {
  position: relative; padding: 0 0 15px; color: rgba(255, 255, 255, 0.46);
  font-size: 12px; letter-spacing: 0.06em; transition: color 0.25s;
}
.filter::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--gold); transform: scaleX(0); transition: transform 0.3s var(--ease); }
.filter:hover { color: var(--white); }
.filter.is-active { color: var(--gold); }
.filter.is-active::after { transform: scaleX(1); }
.shop__count { margin-left: auto; align-self: flex-start; padding-top: 2px; font-family: var(--font-mono); font-size: 9px; color: rgba(255, 255, 255, 0.34); letter-spacing: 0.12em; }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(18px, 2.4vw, 34px) clamp(14px, 2vw, 26px); }
.product-card { min-width: 0; }
.product-card__media { position: relative; overflow: hidden; aspect-ratio: 4 / 5; background: #111; border: 1px solid rgba(255, 255, 255, 0.1); }
.product-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease), filter 0.6s; }
.product-card:hover .product-card__media img { transform: scale(1.045); }
.product-card__media::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0, 0, 0, 0.36), transparent 35%); opacity: 0; transition: opacity 0.4s; pointer-events: none; }
.product-card:hover .product-card__media::after { opacity: 1; }
.badge {
  position: absolute; top: 14px; left: 14px; z-index: 2;
  display: inline-flex; align-items: center; min-height: 23px; padding: 0 9px;
  font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.13em; text-transform: uppercase;
  backdrop-filter: blur(8px);
}
.badge--gold { background: var(--gold); color: var(--ink); }
.badge--outline { border: 1px solid rgba(255, 255, 255, 0.42); color: var(--white); background: rgba(0, 0, 0, 0.2); }
.badge--status { background: rgba(8, 9, 10, 0.5); color: var(--gold-2); border: 1px solid rgba(200, 164, 107, 0.55); }
.quick-add {
  position: absolute; right: 14px; bottom: 14px; z-index: 2;
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--gold); color: var(--ink);
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.35s, transform 0.35s var(--ease), background 0.3s;
}
.quick-add svg { width: 18px; height: 18px; }
.quick-add:hover { background: var(--white); }
.product-card:hover .quick-add, .quick-add:focus-visible { opacity: 1; transform: none; }
.product-card__info { display: flex; justify-content: space-between; gap: 18px; padding-top: 15px; }
.product-card__name { font-family: var(--font-display); font-size: clamp(21px, 2vw, 27px); line-height: 1; letter-spacing: -0.03em; }
.product-card__cn { margin-top: 8px; font-size: 11px; color: rgba(255, 255, 255, 0.42); }
.product-card__price { flex: 0 0 auto; text-align: right; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.02em; }
.product-card__price small { display: block; margin-top: 5px; font-size: 8px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.38); text-transform: uppercase; }
.product-card__price .tbd { color: var(--gold); }
.shop__footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; margin-top: 46px; padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.shop__footer p { font-size: 12px; color: rgba(255, 255, 255, 0.4); }
.shop__footer .text-link { color: var(--white); }

/* ==================== tech ==================== */
.tech { background: #050506; color: var(--white); }
.tech__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: clamp(40px, 6vw, 80px); }
.tech h2 { font-size: clamp(3rem, 6vw, 6.8rem); line-height: 0.98; letter-spacing: -0.055em; }
.tech__grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr); gap: clamp(36px, 6vw, 92px); align-items: start; }
.tech__visual { position: sticky; top: calc(var(--header) + 30px); overflow: hidden; aspect-ratio: 4 / 5; background: #111; }
.tech__visual img { width: 100%; height: 100%; object-fit: cover; filter: saturate(0.8) brightness(0.78); transition: transform 1.8s var(--ease); }
.tech__visual:hover img { transform: scale(1.035); }
.tech__visual::after { content: ""; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(0, 0, 0, 0.55), transparent 50%), linear-gradient(90deg, rgba(0, 0, 0, 0.2), transparent 50%); pointer-events: none; }
.tech__visual-meta { position: absolute; left: 20px; bottom: 18px; right: 20px; z-index: 2; display: flex; justify-content: space-between; gap: 20px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255, 255, 255, 0.52); }
.hotspot { position: absolute; z-index: 3; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 5px rgba(200, 164, 107, 0.15); transition: transform 0.35s; }
.hotspot::after { content: attr(data-label); position: absolute; left: 18px; top: 50%; transform: translateY(-50%); white-space: nowrap; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.1em; color: var(--white); background: rgba(0, 0, 0, 0.66); padding: 6px 8px; border: 1px solid rgba(255, 255, 255, 0.16); opacity: 0; transition: opacity 0.3s; }
.hotspot:hover::after { opacity: 1; }
.hotspot--1 { top: 38%; left: 24%; }
.hotspot--2 { top: 53%; left: 61%; }
.hotspot--3 { top: 68%; left: 37%; }
.scanline { position: absolute; z-index: 2; left: 0; right: 0; height: 1px; background: linear-gradient(90deg, transparent, rgba(200, 164, 107, 0.7), transparent); animation: scan 5.5s linear infinite; }
@keyframes scan { 0% { top: 8%; opacity: 0; } 15% { opacity: 1; } 85% { opacity: 1; } 100% { top: 92%; opacity: 0; } }
.tech__copy { max-width: 530px; margin-bottom: 40px; }
.tech__copy p { font-size: 15px; line-height: 1.85; color: rgba(255, 255, 255, 0.52); }
.features { border-top: 1px solid rgba(255, 255, 255, 0.13); }
.feature { display: grid; grid-template-columns: 44px 1fr; gap: 18px; padding: 25px 0; border-bottom: 1px solid rgba(255, 255, 255, 0.13); opacity: 0.48; transition: opacity 0.4s, padding 0.4s; }
.feature.is-active, .feature:hover { opacity: 1; }
.feature__num { padding-top: 4px; font-family: var(--font-mono); font-size: 9px; color: var(--gold); letter-spacing: 0.08em; }
.feature h3 { font-size: clamp(20px, 2vw, 27px); line-height: 1.2; letter-spacing: -0.02em; font-weight: 400; }
.feature p { margin-top: 8px; font-size: 13px; line-height: 1.75; color: rgba(255, 255, 255, 0.46); }
.tech__specs { display: flex; flex-wrap: wrap; gap: 30px; margin-top: 42px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.13); }
.tech__specs div { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.35); text-transform: uppercase; }
.tech__specs b { display: block; margin-bottom: 4px; font-family: var(--font-display); font-size: 20px; letter-spacing: 0; color: var(--white); font-weight: 400; }

/* ==================== record ==================== */
.record { position: relative; overflow: hidden; background: #000; color: var(--white); padding: clamp(100px, 13vw, 180px) 0 54px; isolation: isolate; }
.record__bg { position: absolute; inset: 0; z-index: -2; background: url("../img/record-bg.jpg") 50% 50% / cover no-repeat; opacity: 0.33; filter: saturate(0.55) contrast(1.1); }
.record::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(0, 0, 0, 0.92), rgba(0, 0, 0, 0.44) 62%, rgba(0, 0, 0, 0.86)), linear-gradient(0deg, rgba(0, 0, 0, 0.98), transparent 55%); }
.record__ghost {
  position: absolute; right: -2vw; bottom: -7vw; z-index: -1;
  font-family: var(--font-display); font-size: clamp(15rem, 37vw, 36rem); line-height: 0.7; letter-spacing: -0.08em;
  color: transparent; -webkit-text-stroke: 1px rgba(200, 164, 107, 0.26); pointer-events: none; user-select: none;
}
.record__content { position: relative; z-index: 2; max-width: 780px; }
.record h2 { margin-top: 24px; font-size: clamp(3.2rem, 7.8vw, 8.6rem); line-height: 0.94; letter-spacing: -0.06em; }
.record__lede { max-width: 50ch; margin-top: 26px; font-size: 15px; line-height: 1.85; color: rgba(255, 255, 255, 0.55); }
.record__big { margin-top: clamp(50px, 8vw, 100px); display: flex; align-items: flex-end; gap: 18px; }
.record__big .num { font-family: var(--font-display); font-size: clamp(6rem, 19vw, 19rem); line-height: 0.67; letter-spacing: -0.075em; color: var(--gold); }
.record__big .unit { padding-bottom: 12px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em; color: rgba(255, 255, 255, 0.56); text-transform: uppercase; }
.timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; margin-top: clamp(50px, 8vw, 96px); padding-top: 22px; border-top: 1px solid rgba(255, 255, 255, 0.2); }
.timeline__item { position: relative; padding-top: 14px; }
.timeline__item::before { content: ""; position: absolute; top: -26px; left: 0; width: 5px; height: 5px; border-radius: 50%; background: var(--gold); }
.timeline__year { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.16em; color: var(--gold); }
.timeline__val { margin-top: 8px; font-family: var(--font-display); font-size: clamp(30px, 3vw, 44px); line-height: 1; letter-spacing: -0.03em; }
.timeline__label { margin-top: 7px; font-size: 11px; color: rgba(255, 255, 255, 0.42); }
.record__note { margin-top: 56px; font-family: var(--font-mono); font-size: 8px; line-height: 1.9; letter-spacing: 0.06em; color: rgba(255, 255, 255, 0.3); max-width: 78ch; }

/* ==================== specs ==================== */
.specs { background: var(--paper); color: var(--ink); }
.specs__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 48px; }
.specs h2 { font-size: clamp(3rem, 6vw, 6.8rem); line-height: 0.98; letter-spacing: -0.055em; }
.specs__tools { display: flex; align-items: center; gap: 20px; }
.spec-tabs { display: flex; flex-wrap: wrap; gap: 30px; border-bottom: 1px solid var(--line-dark); margin-bottom: 34px; scrollbar-width: none; }
.spec-tabs::-webkit-scrollbar { display: none; }
.spec-tab { position: relative; padding: 0 0 15px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; color: #827e75; }
.spec-tab::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: var(--ink); transform: scaleX(0); transition: transform 0.3s var(--ease); }
.spec-tab.is-active { color: var(--ink); }
.spec-tab.is-active::after { transform: scaleX(1); }
.spec-panels { position: relative; }
.spec-panel { display: none; grid-template-columns: 1fr 1fr; gap: 24px 80px; }
.spec-panel.is-active { display: grid; animation: panelIn 0.5s var(--ease); }
@keyframes panelIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.spec-table { width: 100%; }
.spec-table tr { border-bottom: 1px solid rgba(8, 9, 10, 0.13); }
.spec-table th, .spec-table td { padding: 15px 0; text-align: left; font-weight: 400; font-size: 13px; }
.spec-table th { width: 48%; color: #7d796f; }
.spec-table td { text-align: right; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.02em; }
.spec-panel__meta { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: center; gap: 20px; margin-top: 10px; }
.spec-panel__meta p { font-family: var(--font-mono); font-size: 8px; line-height: 1.8; letter-spacing: 0.05em; color: #837f76; max-width: 80ch; }
.specs__foot { display: flex; justify-content: space-between; align-items: center; gap: 30px; margin-top: 46px; padding-top: 22px; border-top: 1px solid var(--line-dark); }
.specs__foot p { font-size: 11px; color: #858178; }
.specs__foot .text-link { color: var(--ink); }

/* ==================== support ==================== */
.support { background: var(--paper-2); color: var(--ink); }
.support__grid { display: grid; grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr); gap: clamp(44px, 8vw, 120px); align-items: start; }
.support h2 { margin-top: 20px; font-size: clamp(3.1rem, 6vw, 6.4rem); line-height: 0.98; letter-spacing: -0.055em; }
.support__copy { margin-top: 22px; max-width: 42ch; font-size: 14px; line-height: 1.85; color: #5a5750; }
.contact-card { margin-top: 42px; padding: 28px; background: var(--ink); color: var(--white); }
.contact-card__label { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.16em; color: var(--gold); text-transform: uppercase; }
.contact-card__mail { display: block; margin-top: 12px; font-family: var(--font-display); font-size: clamp(21px, 2.2vw, 29px); letter-spacing: -0.02em; color: var(--white); }
.contact-card__mail:hover { color: var(--gold); }
.contact-card__socials { display: flex; flex-wrap: wrap; gap: 14px 20px; margin-top: 26px; padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, 0.13); }
.contact-card__socials a { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; color: rgba(255, 255, 255, 0.58); }
.contact-card__socials a:hover { color: var(--gold); }
.faq { border-top: 1px solid var(--line-dark); }
.faq details { border-bottom: 1px solid var(--line-dark); }
.faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: 24px;
  padding: 24px 0; cursor: pointer; list-style: none;
  font-size: clamp(16px, 1.4vw, 19px); font-weight: 700; letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; flex: 0 0 auto; font-family: var(--font-display); font-size: 24px; font-weight: 400; color: var(--gold); transition: transform 0.3s; }
.faq details[open] summary::after { content: "−"; transform: rotate(180deg); }
.faq__a { padding: 0 40px 24px 0; font-size: 13px; line-height: 1.9; color: #5d5952; }

/* ==================== CTA ==================== */
.cta { position: relative; background: #08090a; color: var(--white); overflow: hidden; padding: clamp(100px, 13vw, 180px) 0; isolation: isolate; }
.cta::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(ellipse at 72% 20%, rgba(200, 164, 107, 0.14), transparent 55%), linear-gradient(90deg, rgba(0, 0, 0, 0.7), transparent); }
.cta__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(40px, 8vw, 120px); align-items: end; }
.cta h2 { font-size: clamp(3.2rem, 7.4vw, 8rem); line-height: 0.93; letter-spacing: -0.06em; }
.cta h2 em { font-style: normal; color: var(--gold); }
.cta__copy p { max-width: 42ch; font-size: 14px; line-height: 1.85; color: rgba(255, 255, 255, 0.5); }
.newsletter { margin-top: 30px; }
.newsletter__field { display: flex; align-items: center; gap: 14px; border-bottom: 1px solid rgba(255, 255, 255, 0.32); padding-bottom: 9px; transition: border-color 0.3s; }
.newsletter__field:focus-within { border-color: var(--gold); }
.newsletter input { flex: 1; min-width: 0; padding: 12px 0; background: transparent; border: 0; outline: 0; font-size: 15px; color: var(--white); }
.newsletter input::placeholder { color: rgba(255, 255, 255, 0.32); }
.newsletter button { display: inline-flex; align-items: center; gap: 10px; flex: 0 0 auto; font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--gold); }
.newsletter button svg { width: 18px; height: 18px; }
.newsletter__note { margin-top: 12px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.08em; color: rgba(255, 255, 255, 0.28); }
.newsletter__status { margin-top: 10px; font-size: 12px; color: var(--gold); min-height: 18px; }

/* ==================== footer ==================== */
.footer { background: #050506; color: var(--white); padding: 0 0 28px; border-top: 1px solid rgba(255, 255, 255, 0.1); overflow: hidden; }
.footer__big {
  padding: clamp(38px, 5vw, 60px) 0 0;
  font-family: var(--font-display); font-style: italic; font-weight: 700;
  font-size: clamp(6rem, 19vw, 19rem); line-height: 0.72; letter-spacing: -0.06em;
  color: transparent; -webkit-text-stroke: 1px rgba(255, 255, 255, 0.22); white-space: nowrap;
}
.footer__big span { color: transparent; -webkit-text-stroke-color: rgba(200, 164, 107, 0.55); }
.footer__main { display: grid; grid-template-columns: 1.4fr repeat(3, 0.7fr); gap: 40px; margin-top: clamp(48px, 7vw, 86px); padding-top: 34px; border-top: 1px solid rgba(255, 255, 255, 0.12); }
.footer__brand p { max-width: 32ch; margin-top: 16px; font-size: 12px; line-height: 1.8; color: rgba(255, 255, 255, 0.4); }
.footer__col h4 { margin-bottom: 16px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.18em; color: var(--gold); text-transform: uppercase; }
.footer__col a, .footer__col span { display: block; margin-bottom: 9px; font-size: 12px; color: rgba(255, 255, 255, 0.55); transition: color 0.25s; }
.footer__col a:hover { color: var(--white); }
.footer__bottom { display: flex; justify-content: space-between; gap: 30px; margin-top: 54px; padding-top: 20px; border-top: 1px solid rgba(255, 255, 255, 0.1); font-family: var(--font-mono); font-size: 8px; line-height: 1.8; letter-spacing: 0.05em; color: rgba(255, 255, 255, 0.28); }
.footer__bottom p { max-width: 80ch; }
.footer__bottom .right { text-align: right; flex: 0 0 auto; }

/* ==================== scrim / drawer / modal ==================== */
.scrim { position: fixed; inset: 0; z-index: 1000; background: rgba(0, 0, 0, 0.68); backdrop-filter: blur(6px); opacity: 0; visibility: hidden; transition: opacity 0.4s, visibility 0.4s; }
.scrim.is-open { opacity: 1; visibility: visible; }
.drawer {
  position: fixed; top: 0; right: 0; z-index: 1002;
  width: min(470px, 100%); height: 100dvh;
  display: flex; flex-direction: column;
  background: var(--paper); color: var(--ink);
  transform: translateX(101%); transition: transform 0.6s var(--ease);
  box-shadow: -30px 0 80px rgba(0, 0, 0, 0.25);
}
.drawer.is-open { transform: none; }
.drawer__head { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 25px 26px; border-bottom: 1px solid var(--line-dark); }
.drawer__head h2 { font-family: var(--font-display); font-size: 24px; letter-spacing: -0.02em; }
.drawer__head span { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.08em; color: var(--muted); }
.icon-btn { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line-dark); transition: background 0.25s, color 0.25s; }
.icon-btn:hover { background: var(--ink); color: var(--white); }
.icon-btn svg { width: 15px; height: 15px; }
.drawer__body { flex: 1; overflow-y: auto; padding: 4px 26px; }
.cart-empty { padding: 70px 0; text-align: center; }
.cart-empty__mark { width: 56px; height: 56px; margin: 0 auto 20px; border: 1px solid var(--line-dark); display: grid; place-items: center; }
.cart-empty p { font-size: 14px; color: var(--muted); }
.cart-empty .btn { margin-top: 24px; }
.cart-item { display: grid; grid-template-columns: 78px 1fr auto; gap: 14px; padding: 18px 0; border-bottom: 1px solid var(--line-dark); }
.cart-item__img { width: 78px; height: 96px; object-fit: cover; background: #111; }
.cart-item__name { font-family: var(--font-display); font-size: 19px; line-height: 1.1; letter-spacing: -0.02em; }
.cart-item__variant { margin-top: 5px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.04em; color: var(--muted); }
.cart-item__price { margin-top: 12px; font-family: var(--font-mono); font-size: 10px; }
.cart-item__side { display: flex; flex-direction: column; align-items: flex-end; justify-content: space-between; gap: 12px; }
.cart-item__remove { padding: 4px; color: #9c968b; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.06em; }
.cart-item__remove:hover { color: var(--red); }
.qty { display: inline-flex; align-items: center; border: 1px solid var(--line-dark); height: 30px; }
.qty button { width: 28px; height: 28px; display: grid; place-items: center; font-size: 14px; color: var(--ink); }
.qty button:hover { background: rgba(8, 9, 10, 0.07); }
.qty span { min-width: 26px; text-align: center; font-family: var(--font-mono); font-size: 10px; }
.drawer__foot { padding: 22px 26px 26px; border-top: 1px solid var(--line-dark); background: var(--paper); }
.drawer__row { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; }
.drawer__row span { font-size: 12px; color: var(--muted); }
.drawer__row b { font-family: var(--font-display); font-size: 28px; letter-spacing: -0.03em; font-weight: 700; }
.drawer__note { margin: 8px 0 16px; font-size: 10px; line-height: 1.7; color: var(--muted); }
.drawer__foot .btn { width: 100%; }
.cart-sticky { position: relative; }

.modal { position: fixed; inset: 0; z-index: 1003; display: grid; place-items: center; padding: 24px; background: rgba(0, 0, 0, 0.86); backdrop-filter: blur(8px); opacity: 0; visibility: hidden; transition: opacity 0.4s, visibility 0.4s; }
.modal.is-open { opacity: 1; visibility: visible; }
.modal__panel { width: min(1080px, 100%); max-height: 92dvh; overflow-y: auto; background: #000; color: var(--white); position: relative; transform: translateY(16px) scale(0.985); transition: transform 0.5s var(--ease); }
.modal.is-open .modal__panel { transform: none; }
.modal__close { position: absolute; top: 14px; right: 14px; z-index: 3; background: rgba(0, 0, 0, 0.5); border-color: rgba(255, 255, 255, 0.32); color: var(--white); }
.modal__close:hover { background: var(--white); color: var(--ink); }
.checkout-panel .modal__close { background: transparent; color: var(--ink); border-color: rgba(8, 9, 10, 0.2); }
.checkout-panel .modal__close:hover { background: var(--ink); color: var(--white); }
.video-panel video { width: 100%; aspect-ratio: 16 / 9; background: #000; }
.video-panel__meta { display: flex; justify-content: space-between; gap: 20px; padding: 18px 22px; border-top: 1px solid rgba(255, 255, 255, 0.12); font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.08em; color: rgba(255, 255, 255, 0.4); }
.video-panel__meta b { color: var(--gold); font-weight: 400; }

.checkout-panel { width: min(660px, 100%); background: var(--paper); color: var(--ink); padding: 30px; }
.checkout-panel h2 { font-family: var(--font-display); font-size: 32px; letter-spacing: -0.03em; }
.checkout-panel__sub { margin-top: 8px; font-size: 12px; color: var(--muted); }
.checkout-summary { margin: 22px 0; padding: 16px 0; border-block: 1px solid var(--line-dark); }
.checkout-summary__row { display: flex; justify-content: space-between; gap: 18px; padding: 5px 0; font-size: 12px; }
.checkout-summary__row strong { font-family: var(--font-mono); font-weight: 400; }
.checkout-form { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.field input, .field textarea { width: 100%; padding: 11px 12px; border: 1px solid rgba(8, 9, 10, 0.2); background: transparent; outline: 0; font-size: 13px; color: var(--ink); }
.field input:focus, .field textarea:focus { border-color: var(--ink); }
.field textarea { min-height: 74px; resize: vertical; }
.checkout-form .btn { grid-column: 1 / -1; margin-top: 6px; }
.checkout-panel__note { margin-top: 12px; font-size: 10px; line-height: 1.7; color: var(--muted); }
.checkout-success { padding: 30px 0 10px; display: none; }
.checkout-success.is-visible { display: block; }
.checkout-success__icon { width: 44px; height: 44px; border: 1px solid var(--gold); border-radius: 50%; display: grid; place-items: center; color: var(--gold); margin-bottom: 16px; }
.checkout-success h3 { font-family: var(--font-display); font-size: 26px; }
.checkout-success p { margin-top: 10px; font-size: 13px; line-height: 1.8; color: var(--muted); }

.toast { position: fixed; left: 50%; bottom: 28px; z-index: 1005; transform: translate(-50%, 20px); padding: 13px 20px; background: var(--gold); color: var(--ink); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; opacity: 0; visibility: hidden; transition: opacity 0.3s, transform 0.3s, visibility 0.3s; box-shadow: 0 14px 34px rgba(0, 0, 0, 0.25); }
.toast.is-visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ==================== reveal ==================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); transition-delay: var(--delay, 0s); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal-img { overflow: hidden; }
.reveal-img img { transform: scale(1.08); transition: transform 1.4s var(--ease); }
.reveal-img.is-in img { transform: scale(1); }

/* ==================== product page ==================== */
.page-product { background: var(--paper); color: var(--ink); }
.page-product .site-header { position: fixed; }
.product-main { padding-top: calc(var(--header) + 32px); }
.breadcrumbs { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding: 20px 0 22px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); }
.breadcrumbs a:hover { color: var(--ink); }
.breadcrumbs span { color: var(--gold); }
.product-hero { display: grid; grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr); align-items: stretch; border-top: 1px solid var(--line-dark); }
.product-gallery { background: #0b0c0e; padding: clamp(20px, 3vw, 38px); color: var(--white); position: relative; }
.product-gallery__frame { position: relative; overflow: hidden; aspect-ratio: 4 / 5; background: #111; }
.product-gallery__frame img { width: 100%; height: 100%; object-fit: cover; transition: opacity 0.4s, transform 1.2s var(--ease); }
.product-gallery__frame:hover img { transform: scale(1.025); }
.product-gallery__label { position: absolute; left: 18px; bottom: 18px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255, 255, 255, 0.45); }
.product-thumbs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 10px; }
.product-thumb { position: relative; aspect-ratio: 1; overflow: hidden; border: 1px solid transparent; background: #111; opacity: 0.62; transition: opacity 0.25s, border-color 0.25s; }
.product-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-thumb:hover, .product-thumb.is-active { opacity: 1; border-color: var(--gold); }
.product-info { padding: clamp(34px, 5vw, 68px) 0 clamp(30px, 5vw, 54px) clamp(30px, 5vw, 70px); display: flex; flex-direction: column; }
.product-info__top { display: flex; align-items: center; gap: 12px; }
.product-info__cat { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; color: var(--gold); text-transform: uppercase; }
.product-info__status { padding: 4px 8px; border: 1px solid rgba(8, 9, 10, 0.2); font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.08em; color: #5f5b53; }
.product-info h1 { margin-top: 16px; font-family: var(--font-display); font-size: clamp(42px, 5.2vw, 76px); line-height: 0.9; letter-spacing: -0.055em; }
.product-info__cn { margin-top: 10px; font-size: 17px; color: #5e5a52; letter-spacing: 0.01em; }
.product-info__tagline { max-width: 42ch; margin-top: 20px; font-size: 14px; line-height: 1.85; color: #5a5650; }
.product-price { display: flex; align-items: baseline; gap: 10px; margin-top: 26px; padding-top: 20px; border-top: 1px solid var(--line-dark); }
.product-price__num { font-family: var(--font-display); font-size: clamp(34px, 3.4vw, 46px); letter-spacing: -0.04em; }
.product-price__unit { font-family: var(--font-mono); font-size: 9px; color: var(--muted); letter-spacing: 0.06em; }
.product-price__note { margin-left: auto; font-family: var(--font-mono); font-size: 8px; color: var(--muted); text-align: right; }
.variant-block { margin-top: 22px; }
.variant-block__label { font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); }
.variants { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.variant { padding: 10px 13px; border: 1px solid rgba(8, 9, 10, 0.2); font-size: 11px; color: #55514a; transition: border-color 0.25s, background 0.25s, color 0.25s; }
.variant:hover { border-color: var(--ink); }
.variant.is-active { border-color: var(--ink); background: var(--ink); color: var(--white); }
.variant small { display: block; margin-top: 2px; font-family: var(--font-mono); font-size: 8px; color: var(--gold); }
.buy-row { display: flex; gap: 10px; margin-top: 24px; }
.buy-row .qty { height: 54px; flex: 0 0 auto; }
.buy-row .qty button { width: 36px; height: 52px; }
.buy-row .qty span { min-width: 30px; }
.buy-row .btn { flex: 1; }
.buy-row .btn--ghost { border-color: rgba(8, 9, 10, 0.28); color: var(--ink); }
.buy-row .btn--ghost:hover { background: var(--ink); color: var(--white); }
.product-meta { display: flex; flex-wrap: wrap; gap: 18px 26px; margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--line-dark); }
.product-meta div { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 8px; letter-spacing: 0.04em; color: var(--muted); }
.product-meta svg { width: 15px; height: 15px; color: var(--gold); }
.product-accordion { margin-top: 30px; border-top: 1px solid var(--line-dark); }
.product-accordion details { border-bottom: 1px solid var(--line-dark); }
.product-accordion summary { display: flex; justify-content: space-between; align-items: center; gap: 20px; padding: 15px 0; cursor: pointer; list-style: none; font-size: 12px; font-weight: 700; }
.product-accordion summary::-webkit-details-marker { display: none; }
.product-accordion summary::after { content: "+"; font-family: var(--font-display); font-size: 18px; font-weight: 400; color: var(--gold); }
.product-accordion details[open] summary::after { content: "−"; }
.product-accordion__body { padding: 0 0 16px; font-size: 12px; line-height: 1.85; color: #67625a; }
.product-features { background: var(--ink); color: var(--white); padding: clamp(70px, 9vw, 130px) 0; }
.product-features h2 { font-size: clamp(2.8rem, 5vw, 5.4rem); line-height: 0.98; letter-spacing: -0.055em; }
.product-features__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 46px; }
.product-feature { border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 18px; }
.product-feature__num { font-family: var(--font-mono); font-size: 8px; color: var(--gold); letter-spacing: 0.1em; }
.product-feature h3 { margin-top: 14px; font-size: 16px; font-weight: 400; line-height: 1.4; }
.product-feature p { margin-top: 8px; font-size: 11px; line-height: 1.8; color: rgba(255, 255, 255, 0.42); }
.product-detail { padding: clamp(70px, 9vw, 130px) 0; }
.product-detail__grid { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: clamp(40px, 8vw, 110px); align-items: start; }
.product-detail h2 { font-size: clamp(2.7rem, 5vw, 5.3rem); line-height: 0.98; letter-spacing: -0.055em; }
.product-detail__copy { margin-top: 22px; font-size: 14px; line-height: 1.95; color: #5d5952; }
.product-detail__copy p + p { margin-top: 14px; }
.product-specs-table tr { border-bottom: 1px solid var(--line-dark); }
.product-specs-table th, .product-specs-table td { padding: 14px 0; font-size: 12px; font-weight: 400; text-align: left; }
.product-specs-table th { width: 46%; color: #817d74; }
.product-specs-table td { text-align: right; font-family: var(--font-mono); font-size: 10px; }
.related { padding: clamp(70px, 9vw, 120px) 0; background: var(--paper-2); }
.related__head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 32px; }
.related h2 { font-size: clamp(2.2rem, 4vw, 4.2rem); line-height: 1; letter-spacing: -0.05em; }
.related .product-card { color: var(--ink); }
.related .product-card__cn { color: #77736a; }
.related .product-card__price small { color: #8b877e; }
.related .product-card__media { border-color: rgba(8, 9, 10, 0.13); }
.mobile-buy { display: none; }

/* ==================== responsive ==================== */
@media (max-width: 1180px) {
  .brand__sub { display: none; }
  .product-features__grid { grid-template-columns: repeat(2, 1fr); gap: 30px; }
}
@media (max-width: 1020px) {
  :root { --nav-h: 72px; }
  .nav { gap: 18px; }
  .nav a { font-size: 11px; }
  .nav-cta { display: none; }
  .hero__title { font-size: clamp(4rem, 13vw, 9rem); }
  .manifesto__grid { grid-template-columns: 1fr; gap: 40px; }
  .manifesto__copy { padding-top: 0; max-width: 620px; }
  .manifesto__media { max-width: 560px; }
  .system__cards { grid-template-columns: repeat(2, 1fr); }
  .category-card:last-child { grid-column: 1 / -1; aspect-ratio: 2 / 1; min-height: 360px; }
  .tech__grid { grid-template-columns: 1fr; }
  .tech__visual { position: relative; top: 0; max-width: 640px; aspect-ratio: 16 / 11; }
  .tech__copy { max-width: 700px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .spec-panel { gap: 20px 40px; }
  .cta__grid { grid-template-columns: 1fr; gap: 40px; }
  .cta__copy { max-width: 560px; }
  .footer__main { grid-template-columns: 1.2fr repeat(3, 1fr); gap: 26px; }
  .product-hero { grid-template-columns: 1fr; }
  .product-info { padding: 30px 0 40px; }
  .product-gallery__frame { aspect-ratio: 16 / 11; }
  .product-detail__grid { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 820px) {
  .topbar__right { display: none; }
  .topbar__inner { justify-content: center; }
  .nav { display: none; }
  .burger { display: grid; }
  .nav-actions { gap: 12px; }
  .hero { min-height: 92svh; padding-top: calc(var(--header) + 48px); }
  .hero__title { font-size: clamp(3.8rem, 16vw, 7.8rem); line-height: 0.83; }
  .hero__meta { grid-template-columns: 1fr auto; }
  .hero__social { display: none; }
  .hero__scroll { display: none; }
  .hero__hud { top: calc(var(--header) + 28px); font-size: 8px; gap: 12px; }
  .hero__side { display: none; }
  .hero__corner { display: none; }
  .hero__lede { max-width: 34ch; }
  .system__cards { grid-template-columns: 1fr; }
  .category-card { aspect-ratio: 4 / 5; min-height: 420px; }
  .category-card:last-child { grid-column: auto; aspect-ratio: 4 / 5; min-height: 420px; }
  .shop__head, .specs__head, .tech__head, .system__head { flex-direction: column; align-items: flex-start; gap: 20px; }
  .shop__note { text-align: left; max-width: 42ch; }
  .timeline { grid-template-columns: 1fr; gap: 22px; }
  .timeline__item::before { top: -15px; }
  .spec-panel { grid-template-columns: 1fr; gap: 0 30px; }
  .spec-panel .spec-table:first-child tr:last-child { border-bottom: 0; }
  .spec-panel__meta { flex-direction: column; align-items: flex-start; }
  .spec-panels { margin-top: 10px; }
  .support__grid { grid-template-columns: 1fr; gap: 42px; }
  .contact-card { max-width: 500px; }
  .footer__main { grid-template-columns: 1fr 1fr; gap: 34px 26px; }
  .footer__brand { grid-column: 1 / -1; }
  .footer__bottom { flex-direction: column; gap: 12px; }
  .footer__bottom .right { text-align: left; }
  .film { min-height: 78svh; padding-top: 100px; }
  .film__head { flex-direction: column; }
  .film__index { text-align: left; }
  .film__foot { flex-direction: column; align-items: flex-start; gap: 24px; }
  .film__meta { text-align: left; }
  .product-hero { border-top: 0; }
  .product-gallery { margin-inline: calc(var(--gutter) * -1); padding-inline: var(--gutter); }
  .product-info { padding-top: 28px; }
  .product-gallery__frame { aspect-ratio: 4 / 5; }
  .product-features__grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .mobile-buy {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 900;
    align-items: center; gap: 12px; padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom));
    background: rgba(242, 239, 232, 0.96); border-top: 1px solid var(--line-dark);
    backdrop-filter: blur(14px);
  }
  .mobile-buy__price { flex: 0 0 auto; font-family: var(--font-display); font-size: 22px; letter-spacing: -0.03em; }
  .mobile-buy .btn { flex: 1; min-height: 48px; }
  .product-main { padding-bottom: 74px; }
  .page-product .footer { padding-bottom: 104px; }
  .checkout-form { grid-template-columns: 1fr; }
  .checkout-panel { padding: 22px; }
  .modal { padding: 10px; }
}
@media (max-width: 620px) {
  :root { --gutter: 18px; --nav-h: 64px; --topbar-h: 28px; }
  .desktop-only { display: none; }
  .topbar { height: 28px; }
  .topbar__inner { font-size: 8px; letter-spacing: 0.08em; }
  .brand__type { font-size: 21px; }
  .brand__mark { width: 22px; height: 26px; }
  .cart-btn span.cart-label { display: none; }
  .site-header .nav-cta { display: none; }
  .hero { min-height: 88svh; padding-top: calc(var(--header) + 36px); }
  .hero__title { font-size: clamp(3.3rem, 17.5vw, 5.7rem); }
  .hero__lede { font-size: 14px; line-height: 1.75; }
  .hero__actions { align-items: stretch; }
  .hero__actions .btn { min-width: 0; width: 100%; }
  .play-btn { margin-top: 4px; }
  .hero__meta { grid-template-columns: 1fr; gap: 20px; padding-top: 18px; padding-bottom: 24px; }
  .hero__stats { gap: 24px; }
  .hero-stat__num { font-size: 24px; }
  .hero__hud { display: none; }
  .section { padding: 78px 0; }
  .manifesto h2 { font-size: clamp(2.9rem, 12.4vw, 4.2rem); }
  .manifesto__caption { font-size: 8px; }
  .manifesto__stats { grid-template-columns: 1fr; gap: 26px; }
  .metric__num { font-size: 56px; }
  .film { min-height: 70svh; padding: 80px 0 30px; }
  .film__title { font-size: clamp(2.7rem, 11vw, 4.2rem); }
  .film__play { width: 76px; height: 76px; }
  .film__play::before { border-left-width: 11px; border-top-width: 7px; border-bottom-width: 7px; }
  .film__caption { font-size: 12px; }
  .film__meta { gap: 20px; }
  .film__meta div { font-size: 8px; }
  .system h2, .shop h2, .tech h2, .specs h2 { font-size: clamp(2.8rem, 12vw, 4.2rem); }
  .system__cards { gap: 8px; }
  .category-card { min-height: 390px; padding: 20px; }
  .category-card__top { top: 20px; left: 20px; right: 20px; }
  .category-card p { font-size: 12px; }
  .product-grid { grid-template-columns: 1fr; gap: 30px; }
  .product-card__media { aspect-ratio: 4 / 4.7; }
  .quick-add { opacity: 1; transform: none; }
  .filters { gap: 20px; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 1px; }
  .filter { flex: 0 0 auto; font-size: 11px; }
  .shop__count { display: none; }
  .shop__footer { flex-direction: column; align-items: flex-start; }
  .tech__visual { aspect-ratio: 4 / 5; }
  .feature { grid-template-columns: 34px 1fr; padding: 20px 0; }
  .record { padding-top: 80px; }
  .record h2 { font-size: clamp(3rem, 13vw, 5rem); }
  .record__big { margin-top: 54px; }
  .record__big .num { font-size: 42vw; }
  .record__big .unit { font-size: 9px; padding-bottom: 6px; }
  .record__note { font-size: 7px; }
  .specs__tools .btn { display: none; }
  .specs__head { margin-bottom: 30px; }
  .spec-tabs { gap: 20px; overflow-x: auto; flex-wrap: nowrap; }
  .spec-tab { flex: 0 0 auto; font-size: 10px; }
  .spec-table th, .spec-table td { font-size: 11px; padding: 12px 0; }
  .spec-table td { font-size: 9px; }
  .specs__foot { flex-direction: column; align-items: flex-start; gap: 16px; }
  .support h2 { font-size: clamp(2.9rem, 12vw, 4.2rem); }
  .faq summary { font-size: 15px; padding: 20px 0; }
  .faq__a { padding-right: 0; font-size: 12px; }
  .cta h2 { font-size: clamp(3rem, 12vw, 4.4rem); }
  .footer__big { font-size: 24vw; }
  .footer__main { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .footer__col h4 { font-size: 7px; }
  .footer__col a, .footer__col span { font-size: 11px; }
  .footer__bottom { margin-top: 38px; font-size: 7px; }
  .drawer { width: 100%; }
  .product-info h1 { font-size: clamp(38px, 11vw, 58px); }
  .product-info__cn { font-size: 15px; }
  .product-price { flex-wrap: wrap; }
  .product-price__note { width: 100%; margin-left: 0; text-align: left; }
  .buy-row { flex-wrap: wrap; }
  .buy-row .qty { flex: 1 1 100%; justify-content: space-between; }
  .buy-row .btn { width: 100%; }
  .product-features__grid { grid-template-columns: 1fr; gap: 22px; }
  .related__head { flex-direction: column; align-items: flex-start; }
  .modal__panel { max-height: 96dvh; }
  .checkout-panel { padding: 18px; }
  .checkout-panel h2 { font-size: 27px; }
  .video-panel__meta { flex-direction: column; gap: 4px; font-size: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
  .hero__title .line > span { transform: none; }
  .hero__lede, .hero__actions, .hero__hud { opacity: 1; transform: none; }
  .ticker__track { animation: none; }
}