/* =========================================================
   震伟机械 · 官网视觉系统
   Static, dependency-free. Designed for manufacturing clarity.
   ========================================================= */

:root {
  --ink: #111614;
  --ink-soft: #1a201d;
  --ink-mute: #242b27;
  --paper: #f3f0e8;
  --paper-deep: #eae5da;
  --paper-bright: #fbf9f3;
  --accent: #e35a26;
  --accent-bright: #f06b35;
  --accent-deep: #bd4318;
  --text: #141917;
  --muted: #6f746e;
  --muted-dark: #9a9f98;
  --line: rgba(17, 22, 20, 0.15);
  --line-soft: rgba(17, 22, 20, 0.09);
  --line-light: rgba(247, 244, 236, 0.16);
  --line-light-soft: rgba(247, 244, 236, 0.08);
  --white: #f7f4ec;
  --font-sans: "HarmonyOS Sans SC", "MiSans", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-display: "Arial Narrow", "Bahnschrift Condensed", "DIN Alternate",
    "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Cascadia Mono", "SFMono-Regular", "Consolas", "Liberation Mono",
    monospace;
  --container: 1320px;
  --gutter: clamp(22px, 4.2vw, 58px);
  --header-h: 78px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  background: var(--accent);
  color: var(--ink);
}

img,
svg {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea,
select {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
dl,
dd,
figure {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

strong {
  font-weight: 700;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.svg-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.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: 200;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  transform: translateY(-150%);
  transition: transform 0.25s var(--ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: min(calc(100% - var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.section {
  padding: clamp(78px, 9.2vw, 142px) 0;
}

.section--tight {
  padding: clamp(58px, 7vw, 96px) 0;
}

.section--paper {
  background: var(--paper);
}

.section--deep {
  background: var(--paper-deep);
}

.section--dark {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.section--dark::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      to right,
      rgba(247, 244, 236, 0.035) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(247, 244, 236, 0.035) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(circle at 80% 20%, #000 0%, transparent 68%);
}

.section--dark .container {
  position: relative;
  z-index: 1;
}

.section-rule {
  height: 1px;
  background: var(--line);
}

.eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 12px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.eyebrow__index {
  flex: none;
  white-space: nowrap;
}

.eyebrow__line {
  width: 28px;
  height: 1px;
  flex: none;
  background: currentColor;
  opacity: 0.7;
}

.eyebrow__index {
  color: var(--accent);
}

.eyebrow--light {
  color: rgba(247, 244, 236, 0.58);
}

.eyebrow--light .eyebrow__index {
  color: var(--accent-bright);
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.58fr);
  gap: clamp(32px, 7vw, 110px);
  align-items: end;
  margin-bottom: clamp(42px, 5.2vw, 72px);
}

.section-head h2 {
  max-width: 780px;
  margin-top: 20px;
  font-family: var(--font-display);
  font-size: clamp(38px, 5.2vw, 72px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.section-head__side {
  padding-bottom: 8px;
}

.section-head__side p {
  max-width: 420px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.95;
}

.section--dark .section-head__side p {
  color: var(--muted-dark);
}

.section-head__side .text-link {
  margin-top: 24px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid currentColor;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.2;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition: color 0.25s var(--ease), gap 0.25s var(--ease);
}

.text-link:hover {
  gap: 18px;
  color: var(--accent-deep);
}

.section--dark .text-link {
  color: var(--white);
}

.section--dark .text-link:hover {
  color: var(--accent-bright);
}

.text-link svg {
  width: 14px;
  height: 14px;
}

/* ---------------------------------------------------------
   Buttons
   --------------------------------------------------------- */

.btn {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 14px 22px;
  border: 1px solid transparent;
  border-radius: 0;
  background: transparent;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.12em;
  white-space: nowrap;
  transition: background 0.3s var(--ease), color 0.3s var(--ease),
    border-color 0.3s var(--ease);
}

.btn svg {
  width: 17px;
  height: 17px;
  flex: none;
  transition: transform 0.3s var(--ease);
}

.btn:hover svg {
  transform: translate(3px, -3px);
}

.btn--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}

.btn--accent:hover {
  background: var(--accent-bright);
  border-color: var(--accent-bright);
}

.btn--ghost {
  border-color: rgba(247, 244, 236, 0.28);
  color: var(--white);
}

.btn--ghost:hover {
  border-color: var(--white);
  background: rgba(247, 244, 236, 0.06);
}

.btn--dark {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--white);
}

.btn--dark:hover {
  background: #000;
  border-color: #000;
}

.btn--outline {
  border-color: var(--line);
  color: var(--text);
}

.btn--outline:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.btn--light {
  background: var(--white);
  border-color: var(--white);
  color: var(--ink);
}

.btn--light:hover {
  background: var(--paper);
  border-color: var(--paper);
}

.btn--sm {
  min-height: 42px;
  padding: 10px 16px;
  font-size: 10px;
}

/* ---------------------------------------------------------
   Header
   --------------------------------------------------------- */

.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 90;
  height: var(--header-h);
  color: var(--white);
  border-bottom: 1px solid transparent;
  transition: height 0.4s var(--ease), background 0.4s var(--ease),
    border-color 0.4s var(--ease), backdrop-filter 0.4s var(--ease);
}

.site-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    180deg,
    rgba(9, 13, 11, 0.5) 0%,
    rgba(9, 13, 11, 0) 100%
  );
  transition: opacity 0.4s var(--ease);
}

.site-header.is-scrolled {
  height: 68px;
  border-color: var(--line-light-soft);
  background: rgba(13, 18, 15, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.site-header.is-scrolled::before {
  opacity: 0;
}

.header-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  flex: none;
  align-items: center;
  gap: 12px;
}

.brand__mark {
  width: 37px;
  height: 37px;
  flex: none;
  color: var(--white);
}

.brand__mark path:last-child {
  stroke: var(--accent);
}

.brand__text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand__cn {
  color: var(--white);
  font-size: 18px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.16em;
}

.brand__en {
  color: rgba(247, 244, 236, 0.45);
  font-family: var(--font-mono);
  font-size: 7px;
  line-height: 1.4;
  letter-spacing: 0.19em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 2.7vw, 40px);
}

.nav-link {
  position: relative;
  padding: 10px 0;
  color: rgba(247, 244, 236, 0.64);
  font-size: 12px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.09em;
  transition: color 0.25s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.35s var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--white);
}

.nav-link:hover::after,
.nav-link.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-cta {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 12px;
  padding: 9px 15px;
  border: 1px solid rgba(247, 244, 236, 0.26);
  color: var(--white);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
    color 0.3s var(--ease);
}

.header-cta svg {
  width: 13px;
  height: 13px;
  transition: transform 0.3s var(--ease);
}

.header-cta:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--ink);
}

.header-cta:hover svg {
  transform: translate(2px, -2px);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid rgba(247, 244, 236, 0.22);
  background: transparent;
}

.menu-toggle__lines {
  position: relative;
  display: block;
  width: 18px;
  height: 12px;
  margin: auto;
}

.menu-toggle__lines span {
  position: absolute;
  right: 0;
  display: block;
  width: 100%;
  height: 1px;
  background: var(--white);
  transition: transform 0.3s var(--ease), top 0.3s var(--ease),
    opacity 0.3s var(--ease);
}

.menu-toggle__lines span:nth-child(1) {
  top: 0;
}

.menu-toggle__lines span:nth-child(2) {
  top: 5.5px;
}

.menu-toggle__lines span:nth-child(3) {
  top: 11px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__lines span:nth-child(1) {
  top: 5.5px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle__lines span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .menu-toggle__lines span:nth-child(3) {
  top: 5.5px;
  transform: rotate(-45deg);
}

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  visibility: hidden;
  flex-direction: column;
  padding: calc(var(--header-h) + 38px) var(--gutter) 36px;
  background: var(--ink);
  opacity: 0;
  transform: translateY(-18px);
  transition: visibility 0.45s, opacity 0.45s var(--ease),
    transform 0.45s var(--ease);
}

.mobile-menu::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      to right,
      rgba(247, 244, 236, 0.05) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(247, 244, 236, 0.05) 1px, transparent 1px);
  background-size: 68px 68px;
  mask-image: radial-gradient(circle at 90% 20%, #000, transparent 72%);
}

.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu__nav {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
}

.mobile-menu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-light-soft);
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(28px, 7vw, 42px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.mobile-menu__link span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.mobile-menu__foot {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 12px 28px;
  margin-top: auto;
  padding-top: 32px;
  color: rgba(247, 244, 236, 0.52);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.8;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.mobile-menu__foot a {
  color: var(--white);
}

/* ---------------------------------------------------------
   Hero
   --------------------------------------------------------- */

.hero {
  position: relative;
  display: flex;
  min-height: 100svh;
  flex-direction: column;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      to right,
      rgba(247, 244, 236, 0.042) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(247, 244, 236, 0.042) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: radial-gradient(circle at 63% 38%, #000 0%, transparent 74%);
}

.hero::after {
  content: "";
  position: absolute;
  top: -20%;
  right: -8%;
  width: 66vw;
  height: 70vw;
  max-width: 960px;
  max-height: 960px;
  border-radius: 50%;
  background: radial-gradient(
    circle,
    rgba(227, 90, 38, 0.1) 0%,
    rgba(227, 90, 38, 0.03) 30%,
    transparent 68%
  );
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(420px, 0.98fr);
  flex: 1;
  gap: clamp(26px, 3vw, 60px);
  align-items: center;
  padding-top: calc(var(--header-h) + 48px);
  padding-bottom: clamp(36px, 4.6vw, 64px);
}

.hero-copy {
  position: relative;
  z-index: 2;
  padding-bottom: 8px;
}

.hero h1 {
  max-width: 780px;
  margin: 24px 0 28px;
  font-family: var(--font-display);
  font-size: clamp(54px, 7.4vw, 108px);
  font-weight: 700;
  line-height: 0.99;
  letter-spacing: -0.055em;
}

.hero h1 em {
  display: inline-block;
  color: var(--accent);
  font-style: normal;
}

.hero__lede {
  max-width: 510px;
  color: rgba(247, 244, 236, 0.61);
  font-size: clamp(14px, 1.2vw, 16px);
  line-height: 1.95;
  text-wrap: pretty;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}

.hero__signature {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: clamp(48px, 6vw, 80px);
  color: rgba(247, 244, 236, 0.38);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero__signature-line {
  width: 51px;
  height: 1px;
  background: var(--accent);
}

.hero-art {
  position: relative;
  height: min(58vw, 660px);
  min-height: 500px;
  border-left: 1px solid var(--line-light-soft);
}

.hero-art::before,
.hero-art::after {
  content: "";
  position: absolute;
  z-index: 2;
  width: 7px;
  height: 7px;
  border: 1px solid var(--accent);
  pointer-events: none;
}

.hero-art::before {
  top: 10px;
  left: -4px;
}

.hero-art::after {
  right: 0;
  bottom: 10px;
}

.hero-art__label {
  position: absolute;
  z-index: 3;
  color: rgba(247, 244, 236, 0.4);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero-art__label--top {
  top: 12px;
  left: 18px;
}

.hero-art__label--right {
  top: 46%;
  right: -37px;
  transform: rotate(90deg);
}

.hero-art__label--bottom {
  bottom: 12px;
  left: 18px;
}

.hero-blueprint {
  width: 100%;
  height: 100%;
  overflow: visible;
  transition: transform 0.55s var(--ease);
}

.blueprint-grid {
  opacity: 0.55;
}

.blueprint-line {
  fill: none;
  stroke: rgba(247, 244, 236, 0.38);
  stroke-width: 1;
}

.blueprint-line--dim {
  fill: none;
  stroke: rgba(247, 244, 236, 0.2);
  stroke-width: 1;
  stroke-dasharray: 4 7;
}

.blueprint-line--bright {
  fill: none;
  stroke: rgba(247, 244, 236, 0.7);
  stroke-width: 1.2;
}

.blueprint-accent {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.6;
}

.blueprint-accent-fill {
  fill: var(--accent);
}

.blueprint-text {
  fill: rgba(247, 244, 236, 0.48);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.13em;
}

.blueprint-text--accent {
  fill: var(--accent);
}

.gear-rotate {
  transform-box: fill-box;
  transform-origin: center;
  animation: gear-rotate 90s linear infinite;
}

.gear-rotate--reverse {
  animation-direction: reverse;
  animation-duration: 120s;
}

.hero-stats {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-light);
}

.hero-stat {
  position: relative;
  min-height: 103px;
  padding: 19px 22px 20px 0;
  border-left: 1px solid var(--line-light-soft);
}

.hero-stat:first-child {
  border-left: 0;
}

.hero-stat:not(:first-child) {
  padding-left: clamp(18px, 2.4vw, 34px);
}

.hero-stat__value {
  display: flex;
  align-items: baseline;
  gap: 5px;
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(29px, 3.1vw, 46px);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.hero-stat__value em {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0.06em;
}

.hero-stat__value .hero-stat__word {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: clamp(34px, 3.7vw, 54px);
  font-weight: 650;
  letter-spacing: 0.01em;
}

.hero-stat__label {
  display: block;
  margin-top: 9px;
  color: rgba(247, 244, 236, 0.42);
  font-size: 11px;
  line-height: 1.5;
  letter-spacing: 0.06em;
}

.hero__side-note {
  position: absolute;
  right: 0;
  bottom: 0;
  color: rgba(247, 244, 236, 0.26);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
}

/* ---------------------------------------------------------
   Ticker
   --------------------------------------------------------- */

.ticker {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border-top: 1px solid rgba(17, 22, 20, 0.18);
  border-bottom: 1px solid rgba(17, 22, 20, 0.18);
  background: var(--accent);
  color: var(--ink);
}

.ticker__track {
  display: flex;
  width: max-content;
  animation: ticker 36s linear infinite;
}

.ticker:hover .ticker__track {
  animation-play-state: paused;
}

.ticker__item {
  display: flex;
  align-items: center;
  gap: 26px;
  padding: 15px 28px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  line-height: 1.4;
  letter-spacing: 0.13em;
  white-space: nowrap;
  text-transform: uppercase;
}

.ticker__item::after {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--ink);
  transform: rotate(45deg);
}

/* ---------------------------------------------------------
   Product cards / icons
   --------------------------------------------------------- */

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.product-card {
  position: relative;
  display: flex;
  min-height: 400px;
  flex-direction: column;
  padding: 24px 24px 22px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  transition: background 0.45s var(--ease), color 0.45s var(--ease);
}

.product-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 7px;
  height: 7px;
  border-top: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  opacity: 0;
  transition: opacity 0.35s var(--ease);
}

.product-card:hover {
  background: var(--ink);
  color: var(--white);
}

.product-card:hover::before {
  opacity: 1;
}

.product-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  transition: color 0.35s var(--ease);
}

.product-card:hover .product-card__top {
  color: rgba(247, 244, 236, 0.46);
}

.product-card__top span:last-child {
  color: var(--accent);
}

.product-card__art {
  display: flex;
  height: 154px;
  align-items: center;
  justify-content: center;
  margin: 16px 0 6px;
  color: var(--ink);
  transition: color 0.35s var(--ease);
}

.product-card:hover .product-card__art {
  color: var(--accent);
}

.product-card__art svg {
  width: 138px;
  height: 138px;
}

.product-card h3 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: clamp(23px, 2vw, 28px);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.product-card p {
  max-width: 320px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
  transition: color 0.35s var(--ease);
}

.product-card:hover p {
  color: rgba(247, 244, 236, 0.57);
}

.product-card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-top: auto;
  padding-top: 18px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: color 0.35s var(--ease);
}

.product-card:hover .product-card__foot {
  color: rgba(247, 244, 236, 0.7);
}

.circle-arrow {
  display: inline-flex;
  width: 34px;
  height: 34px;
  flex: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 15px;
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease),
    color 0.3s var(--ease), transform 0.3s var(--ease);
}

.product-card:hover .circle-arrow {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--ink);
  transform: rotate(45deg);
}

.part-accent {
  stroke: var(--accent);
}

.product-card__art svg .part-faint {
  opacity: 0.4;
}

/* ---------------------------------------------------------
   Process section
   --------------------------------------------------------- */

.process-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.83fr) minmax(0, 1.17fr);
  gap: clamp(48px, 9vw, 150px);
}

.process-copy {
  position: sticky;
  top: 118px;
  align-self: start;
}

.process-copy h2 {
  margin: 20px 0 26px;
  font-family: var(--font-display);
  font-size: clamp(38px, 4.9vw, 68px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.04em;
}

.process-copy p {
  max-width: 410px;
  color: var(--muted-dark);
  font-size: 14px;
  line-height: 1.95;
}

.process-copy .btn {
  margin-top: 32px;
}

.process-list {
  border-top: 1px solid var(--line-light);
}

.process-item {
  display: grid;
  grid-template-columns: 60px minmax(0, 1fr);
  gap: clamp(12px, 2.2vw, 32px);
  padding: 26px 0 27px;
  border-bottom: 1px solid var(--line-light-soft);
  transition: padding 0.4s var(--ease), background 0.4s var(--ease);
}

.process-item:hover {
  padding-right: 14px;
  padding-left: 14px;
  background: rgba(247, 244, 236, 0.025);
}

.process-item__num {
  padding-top: 3px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.process-item h3 {
  margin-bottom: 7px;
  color: var(--white);
  font-family: var(--font-display);
  font-size: clamp(21px, 2.2vw, 28px);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.process-item p {
  max-width: 520px;
  color: var(--muted-dark);
  font-size: 13px;
  line-height: 1.85;
}

.process-aside {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
  color: rgba(247, 244, 236, 0.32);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.process-aside::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--accent);
}

/* ---------------------------------------------------------
   About brief (home)
   --------------------------------------------------------- */

.about-brief {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-bright);
}

.about-brief__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(0, 1.18fr);
  gap: clamp(42px, 8vw, 138px);
  align-items: start;
}

.about-brief h2 {
  margin-top: 20px;
  font-family: var(--font-display);
  font-size: clamp(40px, 5.4vw, 74px);
  font-weight: 700;
  line-height: 1.06;
  letter-spacing: -0.05em;
}

.about-brief__copy {
  padding-top: 3px;
}

.about-brief__copy > p {
  max-width: 650px;
  margin-bottom: 15px;
  color: var(--muted);
  font-size: 13px;
  line-height: 2;
}

.about-brief__copy .about-brief__lead {
  margin-bottom: 17px;
  color: var(--text);
  font-size: clamp(16px, 1.5vw, 19px);
  line-height: 1.85;
}

.about-brief__facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 29px 0 28px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.about-brief__facts > div {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 13px 15px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-brief__facts span {
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.about-brief__facts small {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.04em;
}

/* ---------------------------------------------------------
   Difference cards
   --------------------------------------------------------- */

.difference-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.difference-card {
  display: flex;
  min-height: 292px;
  flex-direction: column;
  padding: 24px 24px 28px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}

.difference-card:hover {
  background: var(--ink);
  color: var(--white);
}

.difference-card__index {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.difference-card h3 {
  margin: auto 0 14px;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.2vw, 30px);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.025em;
}

.difference-card p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
  transition: color 0.35s var(--ease);
}

.difference-card:hover p {
  color: var(--muted-dark);
}

.difference-card__rule {
  width: 24px;
  height: 1px;
  margin-bottom: 18px;
  background: var(--line);
  transition: width 0.35s var(--ease), background 0.35s var(--ease);
}

.difference-card:hover .difference-card__rule {
  width: 52px;
  background: var(--accent);
}

/* ---------------------------------------------------------
   Industry / brand strip
   --------------------------------------------------------- */

.industry {
  background: var(--paper-deep);
}

.industry-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.55fr);
  gap: 40px;
  align-items: end;
  margin-bottom: 48px;
}

.industry-head h2 {
  margin-top: 20px;
  font-family: var(--font-display);
  font-size: clamp(38px, 5.2vw, 70px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.industry-head p {
  max-width: 430px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.brand-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.brand-item {
  display: flex;
  min-height: 132px;
  flex-direction: column;
  justify-content: space-between;
  padding: 21px 18px 17px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--text);
  filter: grayscale(1);
  transition: background 0.35s var(--ease), color 0.35s var(--ease),
    filter 0.35s var(--ease);
}

.brand-item:hover {
  background: var(--ink);
  color: var(--white);
  filter: grayscale(0);
}

.brand-item__name {
  font-family: var(--font-display);
  font-size: clamp(19px, 1.7vw, 24px);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: 0.08em;
}

.brand-item__en {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.4;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transition: color 0.35s var(--ease);
}

.brand-item:hover .brand-item__en {
  color: var(--accent);
}

.brand-note {
  margin-top: 16px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.8;
  letter-spacing: 0.02em;
}

.brand-note span {
  color: var(--accent-deep);
}

/* ---------------------------------------------------------
   CTA band
   --------------------------------------------------------- */

.cta-band {
  position: relative;
  overflow: hidden;
  padding: clamp(67px, 8.4vw, 126px) 0;
  background: var(--accent);
  color: var(--ink);
}

.cta-band::before {
  content: "ZW";
  position: absolute;
  right: -0.04em;
  bottom: -0.23em;
  color: rgba(17, 22, 20, 0.07);
  font-family: var(--font-display);
  font-size: clamp(240px, 38vw, 560px);
  font-weight: 700;
  line-height: 0.75;
  letter-spacing: -0.1em;
  pointer-events: none;
}

.cta-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 36px;
  align-items: end;
}

.cta-band .eyebrow {
  color: rgba(17, 22, 20, 0.55);
}

.cta-band h2 {
  max-width: 1000px;
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: clamp(48px, 7.1vw, 104px);
  font-weight: 700;
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.cta-band__action {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 17px;
  padding-bottom: 7px;
}

.cta-band__note {
  max-width: 360px;
  margin-top: 28px;
  color: rgba(17, 22, 20, 0.6);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.8;
  letter-spacing: 0.06em;
}

/* ---------------------------------------------------------
   Footer
   --------------------------------------------------------- */

.site-footer {
  position: relative;
  overflow: hidden;
  padding: 68px 0 23px;
  background: #0c100e;
  color: var(--white);
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(240px, 1.35fr) repeat(3, minmax(130px, 0.55fr));
  gap: clamp(30px, 5vw, 86px);
  padding-bottom: 52px;
}

.footer-brand .brand {
  margin-bottom: 22px;
}

.footer-brand p {
  max-width: 300px;
  color: rgba(247, 244, 236, 0.42);
  font-size: 12px;
  line-height: 1.9;
}

.footer-brand__meta {
  margin-top: 26px;
  color: rgba(247, 244, 236, 0.26);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.9;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-col h3 {
  margin-bottom: 20px;
  color: rgba(247, 244, 236, 0.3);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  line-height: 1.4;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a,
.footer-col p {
  color: rgba(247, 244, 236, 0.62);
  font-size: 12px;
  line-height: 1.7;
  transition: color 0.25s var(--ease);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 13px;
}

.footer-contact__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.footer-contact__label {
  color: rgba(247, 244, 236, 0.27);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.footer-watermark {
  margin: 0 0 -0.12em -0.04em;
  color: rgba(247, 244, 236, 0.035);
  font-family: var(--font-display);
  font-size: clamp(104px, 23vw, 332px);
  font-weight: 700;
  line-height: 0.7;
  letter-spacing: -0.045em;
  white-space: nowrap;
  pointer-events: none;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding-top: 18px;
  border-top: 1px solid rgba(247, 244, 236, 0.09);
  color: rgba(247, 244, 236, 0.3);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 0.03em;
}

.footer-bottom a {
  color: rgba(247, 244, 236, 0.44);
}

.footer-bottom a:hover {
  color: var(--accent);
}

/* ---------------------------------------------------------
   Page hero (inner pages)
   --------------------------------------------------------- */

.page-hero {
  position: relative;
  display: flex;
  min-height: 460px;
  align-items: flex-end;
  overflow: hidden;
  padding: calc(var(--header-h) + 82px) 0 46px;
  background: var(--ink);
  color: var(--white);
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(
      to right,
      rgba(247, 244, 236, 0.04) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(247, 244, 236, 0.04) 1px, transparent 1px);
  background-size: 84px 84px;
  mask-image: linear-gradient(105deg, #000 0%, transparent 77%);
}

.page-hero::after {
  content: "";
  position: absolute;
  top: -45%;
  right: -6%;
  width: 55vw;
  height: 55vw;
  max-width: 760px;
  max-height: 760px;
  border: 1px solid rgba(227, 90, 38, 0.2);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(227, 90, 38, 0.025),
    0 0 0 160px rgba(227, 90, 38, 0.018);
  pointer-events: none;
}

.page-hero__index {
  position: absolute;
  top: 50%;
  right: var(--gutter);
  color: rgba(247, 244, 236, 0.04);
  font-family: var(--font-display);
  font-size: clamp(180px, 27vw, 420px);
  font-weight: 700;
  line-height: 0.72;
  letter-spacing: -0.08em;
  pointer-events: none;
  transform: translateY(-38%);
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 42px;
  color: rgba(247, 244, 236, 0.36);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.09em;
}

.breadcrumb a {
  transition: color 0.25s var(--ease);
}

.breadcrumb a:hover {
  color: var(--accent);
}

.breadcrumb__sep {
  color: var(--accent);
}

.page-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(270px, 0.52fr);
  gap: clamp(28px, 7vw, 105px);
  align-items: end;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(52px, 8vw, 112px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.055em;
}

.page-hero h1 em {
  color: var(--accent);
  font-style: normal;
}

.page-hero__en {
  display: block;
  margin-top: 17px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.page-hero__copy {
  padding-bottom: 5px;
  color: rgba(247, 244, 236, 0.53);
  font-size: 14px;
  line-height: 1.9;
  text-wrap: pretty;
}

.page-hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 11px 28px;
  margin-top: 38px;
  padding-top: 16px;
  border-top: 1px solid var(--line-light-soft);
  color: rgba(247, 244, 236, 0.33);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.page-hero__meta span:first-child {
  color: var(--accent);
}

/* ---------------------------------------------------------
   Catalog / products
   --------------------------------------------------------- */

.catalog-toolbar {
  position: sticky;
  top: 68px;
  z-index: 40;
  border-bottom: 1px solid var(--line);
  background: rgba(243, 240, 232, 0.94);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 17px 0;
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.filter-chip {
  padding: 9px 14px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.4;
  letter-spacing: 0.07em;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease),
    color 0.25s var(--ease);
}

.filter-chip:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.filter-chip.is-active {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.catalog-count {
  flex: none;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.catalog-count strong {
  color: var(--accent-deep);
  font-weight: 500;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.catalog-card {
  position: relative;
  display: flex;
  min-height: 502px;
  scroll-margin-top: 145px;
  flex-direction: column;
  padding: 25px 25px 23px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  transition: background 0.45s var(--ease), color 0.45s var(--ease);
}

.catalog-card[hidden] {
  display: none;
}

.catalog-card:hover {
  background: var(--ink);
  color: var(--white);
}

.catalog-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.4;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.catalog-card__head span:last-child {
  color: var(--accent-deep);
}

.catalog-card:hover .catalog-card__head {
  color: rgba(247, 244, 236, 0.45);
}

.catalog-card:hover .catalog-card__head span:last-child {
  color: var(--accent);
}

.catalog-card__art {
  display: flex;
  height: 154px;
  align-items: center;
  justify-content: flex-start;
  margin: 18px 0 21px;
  color: var(--ink);
  transition: color 0.35s var(--ease);
}

.catalog-card:hover .catalog-card__art {
  color: var(--accent);
}

.catalog-card__art svg {
  width: 158px;
  height: 158px;
}

.catalog-card h2 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: clamp(25px, 2.25vw, 32px);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.catalog-card__desc {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
  transition: color 0.35s var(--ease);
}

.catalog-card:hover .catalog-card__desc {
  color: rgba(247, 244, 236, 0.57);
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.chip {
  padding: 5px 8px;
  border: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.3;
  letter-spacing: 0.02em;
  transition: border-color 0.35s var(--ease), color 0.35s var(--ease);
}

.catalog-card:hover .chip {
  border-color: rgba(247, 244, 236, 0.18);
  color: rgba(247, 244, 236, 0.52);
}

.spec-list {
  margin-top: auto;
  padding-top: 21px;
}

.spec-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 7px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 11px;
  line-height: 1.55;
}

.spec-row dt {
  flex: none;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.03em;
}

.spec-row dd {
  color: var(--text);
  text-align: right;
}

.catalog-card:hover .spec-row {
  border-color: var(--line-light-soft);
}

.catalog-card:hover .spec-row dt {
  color: rgba(247, 244, 236, 0.38);
}

.catalog-card:hover .spec-row dd {
  color: rgba(247, 244, 236, 0.7);
}

.catalog-card__action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 17px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  transition: border-color 0.35s var(--ease), color 0.35s var(--ease);
}

.catalog-card:hover .catalog-card__action {
  border-color: var(--line-light);
  color: var(--accent);
}

.catalog-card__action span:last-child {
  font-family: var(--font-sans);
  font-size: 16px;
}

.catalog-note {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-top: 25px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
}

.catalog-note::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: none;
  margin-top: 8px;
  background: var(--accent);
  transform: rotate(45deg);
}

/* Product page supporting sections */

.product-process {
  border-top: 1px solid var(--line);
}

.product-process__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.product-process__step {
  min-height: 185px;
  padding: 22px 22px 24px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.product-process__step:first-child {
  border-left: 1px solid var(--line);
}

.product-process__step span {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.product-process__step h3 {
  margin: 31px 0 9px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.product-process__step p {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
}

.material-strip {
  display: grid;
  grid-template-columns: minmax(220px, 0.7fr) repeat(3, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.material-strip__intro,
.material-strip__item {
  padding: 25px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.material-strip__intro {
  background: var(--ink);
  color: var(--white);
}

.material-strip__intro h3 {
  margin: 10px 0 13px;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.03em;
}

.material-strip__intro p {
  color: var(--muted-dark);
  font-size: 11px;
  line-height: 1.8;
}

.material-strip__item h4 {
  margin-bottom: 14px;
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.material-strip__item p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}

/* ---------------------------------------------------------
   About page
   --------------------------------------------------------- */

.about-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(42px, 8vw, 138px);
  align-items: start;
}

.about-intro__visual {
  position: relative;
  min-height: 480px;
  overflow: hidden;
  background: var(--ink);
  color: var(--white);
}

.about-intro__visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      to right,
      rgba(247, 244, 236, 0.045) 1px,
      transparent 1px
    ),
    linear-gradient(to bottom, rgba(247, 244, 236, 0.045) 1px, transparent 1px);
  background-size: 58px 58px;
}

.about-intro__visual svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.about-visual__tag {
  position: absolute;
  z-index: 2;
  top: 21px;
  left: 23px;
  color: rgba(247, 244, 236, 0.4);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.about-visual__caption {
  position: absolute;
  z-index: 2;
  right: 22px;
  bottom: 19px;
  left: 22px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(247, 244, 236, 0.34);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.5;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.about-intro__copy h2 {
  margin: 20px 0 27px;
  font-family: var(--font-display);
  font-size: clamp(38px, 4.8vw, 66px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.about-intro__copy p {
  max-width: 570px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: 14px;
  line-height: 2;
}

.about-intro__copy p:first-of-type {
  color: var(--text);
  font-size: 16px;
}

.definition-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 38px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.definition-list__item {
  padding: 15px 17px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.definition-list__item dt {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.5;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.definition-list__item dd {
  margin-top: 5px;
  font-size: 13px;
  font-weight: 600;
  line-height: 1.6;
}

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.stat-band__item {
  padding: 29px 24px 30px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.stat-band__value {
  color: var(--ink);
  font-family: var(--font-display);
  font-size: clamp(36px, 4.2vw, 58px);
  font-weight: 650;
  line-height: 1;
  letter-spacing: -0.04em;
}

.stat-band__value em {
  margin-left: 4px;
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 10px;
  font-style: normal;
  letter-spacing: 0.04em;
}

.stat-band__label {
  margin-top: 12px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.6;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-light);
  border-left: 1px solid var(--line-light);
}

.value-card {
  min-height: 288px;
  padding: 25px 25px 29px;
  border-right: 1px solid var(--line-light);
  border-bottom: 1px solid var(--line-light);
}

.value-card__index {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.value-card h3 {
  margin: 76px 0 13px;
  font-family: var(--font-display);
  font-size: clamp(27px, 2.7vw, 36px);
  font-weight: 650;
  line-height: 1.25;
  letter-spacing: -0.03em;
}

.value-card p {
  max-width: 320px;
  color: var(--muted-dark);
  font-size: 13px;
  line-height: 1.9;
}

.timeline {
  position: relative;
  margin-top: 48px;
  border-top: 1px solid var(--line);
}

.timeline__item {
  display: grid;
  grid-template-columns: minmax(120px, 0.4fr) 18px minmax(0, 1fr);
  gap: 20px;
  padding: 27px 0;
  border-bottom: 1px solid var(--line);
}

.timeline__year {
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.06em;
}

.timeline__marker {
  position: relative;
}

.timeline__marker::before {
  content: "";
  position: absolute;
  top: 8px;
  left: 50%;
  width: 5px;
  height: 5px;
  background: var(--accent);
  transform: translateX(-50%) rotate(45deg);
}

.timeline__content h3 {
  margin-bottom: 5px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 650;
  line-height: 1.3;
  letter-spacing: -0.02em;
}

.timeline__content p {
  max-width: 600px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

/* ---------------------------------------------------------
   Quality page
   --------------------------------------------------------- */

.quality-statement {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(260px, 0.5fr);
  gap: clamp(36px, 8vw, 130px);
  align-items: end;
}

.quality-statement h2 {
  max-width: 920px;
  font-family: var(--font-display);
  font-size: clamp(40px, 5.8vw, 82px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.quality-statement h2 em {
  color: var(--accent);
  font-style: normal;
}

.quality-statement p {
  max-width: 390px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.95;
}

.quality-measure {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 0;
  margin-top: 60px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.quality-measure__visual {
  position: relative;
  min-height: 360px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--ink);
}

.quality-measure__visual svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.quality-measure__copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 4.4vw, 56px);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.quality-measure__copy h3 {
  margin: 19px 0 16px;
  font-family: var(--font-display);
  font-size: clamp(29px, 3.5vw, 47px);
  font-weight: 650;
  line-height: 1.16;
  letter-spacing: -0.035em;
}

.quality-measure__copy p {
  max-width: 430px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.95;
}

.gate-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.gate-card {
  min-height: 298px;
  padding: 25px 24px 27px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.gate-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.gate-card h3 {
  margin: 58px 0 11px;
  font-family: var(--font-display);
  font-size: clamp(25px, 2.5vw, 33px);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.gate-card p {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.checklist li {
  position: relative;
  padding: 13px 16px 13px 36px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

.checklist li::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 16px;
  width: 8px;
  height: 4px;
  border-bottom: 1px solid var(--accent);
  border-left: 1px solid var(--accent);
  transform: rotate(-45deg);
}

.trace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(240px, 0.48fr);
  gap: clamp(38px, 8vw, 120px);
  align-items: start;
}

.trace h2 {
  margin: 19px 0 25px;
  font-family: var(--font-display);
  font-size: clamp(38px, 5vw, 68px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.trace__copy p {
  max-width: 480px;
  color: var(--muted-dark);
  font-size: 13px;
  line-height: 1.95;
}

.trace-flow {
  border-top: 1px solid var(--line-light);
}

.trace-node {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 15px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line-light-soft);
}

.trace-node__num {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 0.08em;
}

.trace-node strong {
  display: block;
  margin-bottom: 3px;
  color: var(--white);
  font-size: 13px;
  font-weight: 600;
}

.trace-node span {
  color: var(--muted-dark);
  font-size: 11px;
  line-height: 1.7;
}

.faq {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 23px 48px 23px 0;
  cursor: pointer;
  list-style: none;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
  transition: color 0.25s var(--ease);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 3px;
  color: var(--accent);
  font-family: var(--font-sans);
  font-size: 25px;
  font-weight: 300;
  line-height: 1;
  transition: transform 0.3s var(--ease);
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item summary:hover {
  color: var(--accent-deep);
}

.faq-item__answer {
  max-width: 720px;
  padding: 0 0 25px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.95;
}

.faq-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.55fr) minmax(0, 1.45fr);
  gap: clamp(36px, 7vw, 110px);
  align-items: start;
}

.faq-layout h2 {
  margin-top: 18px;
  font-family: var(--font-display);
  font-size: clamp(32px, 3.6vw, 50px);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.04em;
}

/* ---------------------------------------------------------
   Contact page
   --------------------------------------------------------- */

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: clamp(38px, 8vw, 130px);
  align-items: start;
}

.contact-info h2 {
  margin: 18px 0 27px;
  font-family: var(--font-display);
  font-size: clamp(38px, 4.8vw, 64px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.contact-info > p {
  max-width: 400px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.95;
}

.contact-list {
  margin-top: 39px;
  border-top: 1px solid var(--line);
}

.contact-item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.contact-item__label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.8;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact-item__value {
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.7;
}

.contact-item__value a {
  transition: color 0.25s var(--ease);
}

.contact-item__value a:hover {
  color: var(--accent-deep);
}

.contact-item__note {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 400;
  line-height: 1.7;
}

.contact-map-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 22px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--text);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.07em;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.contact-map-link:hover {
  color: var(--accent-deep);
  border-color: var(--accent-deep);
}

.contact-form-panel {
  scroll-margin-top: 100px;
  border: 1px solid var(--line);
  background: var(--paper-bright);
}

.contact-form__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  padding: 24px 26px;
  border-bottom: 1px solid var(--line);
}

.contact-form__head h3 {
  margin-top: 9px;
  font-family: var(--font-display);
  font-size: clamp(25px, 2.8vw, 34px);
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.contact-form__head span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  line-height: 1.8;
  letter-spacing: 0.08em;
  text-align: right;
  text-transform: uppercase;
}

.inquiry-form {
  padding: 26px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.field--full {
  grid-column: 1 / -1;
}

.field label {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
  letter-spacing: 0.04em;
}

.field label span {
  color: var(--accent-deep);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0;
  outline: 0;
  background: transparent;
  font-size: 14px;
  line-height: 1.6;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.field input,
.field select {
  height: 38px;
  padding: 4px 0;
}

.field textarea {
  min-height: 96px;
  padding: 7px 0;
  resize: vertical;
}

.field select {
  cursor: pointer;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #a9aba4;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--ink);
}

.field.is-invalid input,
.field.is-invalid select,
.field.is-invalid textarea {
  border-color: var(--accent-deep);
}

.field__error {
  display: none;
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.5;
}

.field.is-invalid .field__error {
  display: block;
}

.field__hint {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.7;
  letter-spacing: 0.02em;
}

.file-picker {
  display: flex;
  min-height: 42px;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}

.file-picker__input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.file-picker__button {
  display: inline-flex;
  flex: none;
  align-items: center;
  justify-content: center;
  padding: 8px 13px;
  border: 1px solid var(--line);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.4;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease),
    color 0.25s var(--ease);
}

.file-picker__button:hover {
  border-color: var(--ink);
  background: var(--ink);
  color: var(--white);
}

.file-picker__input:focus-visible + .file-picker__button {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.file-picker__name {
  min-width: 0;
  flex: 1;
  overflow: hidden;
  color: #a9aba4;
  font-size: 11px;
  line-height: 1.5;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-picker__name.is-selected {
  color: var(--text);
}

.file-picker__clear {
  flex: none;
  padding: 4px 0;
  border: 0;
  background: transparent;
  color: var(--accent-deep);
  font-family: var(--font-mono);
  font-size: 9px;
  line-height: 1.4;
}

.file-picker__clear:hover {
  color: var(--ink);
}

.file-picker__clear[hidden] {
  display: none;
}

.inquiry-form.is-sending .file-picker__button {
  opacity: 0.45;
  pointer-events: none;
}

.inquiry-form.is-sending .form-foot .btn {
  opacity: 0.65;
  pointer-events: none;
}

.hp-field {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 28px;
}

.form-foot p {
  max-width: 340px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.8;
}

.form-foot .btn {
  min-width: 165px;
}

.form-status {
  min-height: 20px;
  margin-top: 14px;
  color: var(--accent-deep);
  font-size: 11px;
  line-height: 1.7;
}

.form-status:empty {
  display: none;
}

.contact-aside {
  display: flex;
  align-items: flex-start;
  gap: 13px;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.8;
}

.contact-aside::before {
  content: "";
  width: 5px;
  height: 5px;
  flex: none;
  margin-top: 8px;
  background: var(--accent);
  transform: rotate(45deg);
}

.map-panel {
  position: relative;
  min-height: 280px;
  margin-top: 60px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--paper-deep);
}

.map-panel svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.map-panel__overlay {
  position: absolute;
  right: 20px;
  bottom: 20px;
  left: 20px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  padding: 18px;
  background: rgba(251, 249, 243, 0.93);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.map-panel__overlay h3 {
  margin-bottom: 4px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 650;
  line-height: 1.25;
}

.map-panel__overlay p {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.7;
}

.map-panel__overlay a {
  flex: none;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--ink);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.06em;
}

/* ---------------------------------------------------------
   Dialog: generated inquiry
   --------------------------------------------------------- */

.inquiry-dialog {
  width: min(620px, calc(100% - 32px));
  max-height: min(86vh, 850px);
  margin: auto;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--paper-bright);
  color: var(--text);
  overflow: auto;
}

.inquiry-dialog::backdrop {
  background: rgba(7, 10, 8, 0.72);
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}

.inquiry-dialog__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
  padding: 25px 26px 20px;
  border-bottom: 1px solid var(--line);
}

.inquiry-dialog__head h2 {
  margin-top: 8px;
  font-family: var(--font-display);
  font-size: 31px;
  font-weight: 650;
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.dialog-close {
  display: inline-flex;
  width: 34px;
  height: 34px;
  flex: none;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  font-size: 18px;
  line-height: 1;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.dialog-close:hover {
  background: var(--ink);
  color: var(--white);
}

.inquiry-dialog__body {
  padding: 23px 26px 26px;
}

.inquiry-dialog__body > p {
  margin-bottom: 19px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}

.inquiry-preview {
  max-height: 300px;
  margin: 0;
  padding: 18px;
  overflow: auto;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.9;
  white-space: pre-wrap;
  word-break: break-word;
}

.inquiry-dialog__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 19px;
}

.inquiry-dialog__actions[hidden] {
  display: none;
}

[hidden] {
  display: none !important;
}

.inquiry-dialog__note {
  margin-top: 17px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.8;
}

/* ---------------------------------------------------------
   Back to top
   --------------------------------------------------------- */

.back-to-top {
  position: fixed;
  right: clamp(16px, 2.2vw, 30px);
  bottom: clamp(16px, 2.2vw, 30px);
  z-index: 50;
  display: flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(247, 244, 236, 0.2);
  background: rgba(17, 22, 20, 0.92);
  color: var(--white);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    background 0.3s var(--ease);
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--accent);
  color: var(--ink);
}

.back-to-top svg {
  width: 15px;
  height: 15px;
}

/* ---------------------------------------------------------
   Reveal animations
   --------------------------------------------------------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--delay, 0ms);
}

.js [data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes gear-rotate {
  to {
    transform: rotate(360deg);
  }
}

@keyframes ticker {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

/* ---------------------------------------------------------
   Responsive
   --------------------------------------------------------- */

@media (max-width: 1180px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(380px, 0.95fr);
  }

  .hero-art {
    min-height: 450px;
  }

  .difference-card {
    min-height: 270px;
  }

  .catalog-card {
    min-height: 478px;
  }

  .footer-top {
    grid-template-columns: minmax(230px, 1.2fr) repeat(3, minmax(120px, 0.6fr));
    gap: 32px;
  }
}

@media (max-width: 1020px) {
  .main-nav {
    gap: 20px;
  }

  .header-cta {
    display: none;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr) minmax(340px, 0.84fr);
  }

  .hero-art {
    min-height: 410px;
  }

  .product-grid,
  .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-card {
    min-height: 370px;
  }

  .brand-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .brand-item {
    min-height: 110px;
  }

  .difference-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .difference-card {
    min-height: 245px;
  }

  .values-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-brand p {
    max-width: 460px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-h: 68px;
  }

  .main-nav,
  .header-cta {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-header {
    height: var(--header-h);
  }

  .site-header.is-scrolled {
    height: 62px;
  }

  .catalog-toolbar {
    top: 62px;
  }

  .hero {
    min-height: auto;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 4px;
    padding-top: calc(var(--header-h) + 58px);
    padding-bottom: 36px;
  }

  .hero h1 {
    margin-top: 20px;
    font-size: clamp(50px, 11.5vw, 86px);
  }

  .hero__signature {
    margin-top: 40px;
  }

  .hero-art {
    width: min(100%, 600px);
    height: 470px;
    min-height: 0;
    margin: 5px auto 0;
    border-left: 0;
    border-top: 1px solid var(--line-light-soft);
  }

  .hero-art::before {
    top: -4px;
    left: 0;
  }

  .hero-art__label--right,
  .hero-art__label--top,
  .hero-art__label--bottom {
    display: none;
  }

  .hero__side-note {
    display: none;
  }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-stat {
    min-height: 88px;
    padding: 16px 18px 16px 0;
    border-bottom: 1px solid var(--line-light-soft);
  }

  .hero-stat:nth-child(odd) {
    border-left: 0;
  }

  .hero-stat:nth-child(even) {
    padding-left: 18px;
  }

  .hero-stat:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .section-head,
  .industry-head,
  .section-head--split {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .section-head {
    margin-bottom: 38px;
  }

  .section-head__side {
    padding-bottom: 0;
  }

  .process-layout {
    grid-template-columns: 1fr;
    gap: 45px;
  }

  .process-copy {
    position: static;
  }

  .process-copy p {
    max-width: 600px;
  }

  .product-grid,
  .catalog-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .catalog-card {
    min-height: 462px;
  }

  .page-hero {
    min-height: 420px;
  }

  .page-hero__grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-hero__copy {
    max-width: 520px;
  }

  .page-hero__index {
    font-size: 31vw;
  }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .about-brief__grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .about-intro__visual {
    min-height: 390px;
  }

  .stat-band {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quality-statement,
  .trace,
  .quality-measure,
  .faq-layout,
  .contact-layout {
    grid-template-columns: 1fr;
    gap: 33px;
  }

  .quality-measure {
    gap: 0;
  }

  .quality-measure__visual {
    min-height: 300px;
  }

  .quality-measure__copy {
    padding: 30px;
  }

  .faq-layout {
    gap: 32px;
  }

  .contact-info > p {
    max-width: 540px;
  }

  .contact-form-panel {
    margin-top: 4px;
  }

  .map-panel {
    margin-top: 38px;
  }

  .cta-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .cta-band__action {
    padding-bottom: 0;
  }

  .filter-bar {
    align-items: flex-start;
    flex-direction: column;
    gap: 11px;
    padding: 14px 0;
  }

  .catalog-count {
    padding-left: 1px;
  }

  .material-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .material-strip__intro {
    grid-column: 1 / -1;
  }

  .product-process__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .product-process__step:first-child {
    border-left: 0;
  }

  .product-process__step:nth-child(odd) {
    border-left: 1px solid var(--line);
  }
}

@media (max-width: 620px) {
  :root {
    --gutter: 19px;
  }

  body {
    font-size: 15px;
  }

  .brand__mark {
    width: 33px;
    height: 33px;
  }

  .brand__cn {
    font-size: 16px;
  }

  .brand__en {
    font-size: 6px;
  }

  .hero-inner {
    padding-top: calc(var(--header-h) + 43px);
  }

  .hero h1 {
    font-size: clamp(45px, 13.9vw, 68px);
    letter-spacing: -0.06em;
  }

  .hero__lede {
    font-size: 13px;
    line-height: 1.9;
  }

  .hero__actions {
    margin-top: 27px;
  }

  .hero__actions .btn {
    flex: 1 1 auto;
    padding-inline: 15px;
  }

  .hero__signature {
    flex-wrap: wrap;
    gap: 9px;
    margin-top: 31px;
    font-size: 8px;
  }

  .hero-art {
    height: 360px;
  }

  .hero-stats {
    margin-top: 4px;
  }

  .hero-stat__value {
    font-size: 30px;
  }

  .hero-stat__label {
    font-size: 10px;
  }

  .ticker__item {
    gap: 19px;
    padding: 13px 20px;
    font-size: 9px;
  }

  .section-head h2,
  .industry-head h2,
  .process-copy h2 {
    font-size: clamp(34px, 10vw, 48px);
  }

  .section-head__side p {
    font-size: 12px;
  }

  .product-grid,
  .catalog-grid {
    grid-template-columns: 1fr;
  }

  .product-card {
    min-height: 340px;
    padding: 20px;
  }

  .product-card__art {
    height: 124px;
    justify-content: flex-start;
    padding-left: 3px;
  }

  .product-card__art svg {
    width: 115px;
    height: 115px;
  }

  .catalog-card {
    min-height: auto;
    padding: 20px;
  }

  .catalog-card__art {
    height: 125px;
    margin: 15px 0 16px;
  }

  .catalog-card__art svg {
    width: 126px;
    height: 126px;
  }

  .catalog-card__desc {
    font-size: 12px;
  }

  .spec-row {
    font-size: 10px;
  }

  .difference-grid {
    grid-template-columns: 1fr;
  }

  .difference-card {
    min-height: 220px;
  }

  .brand-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .brand-item {
    min-height: 99px;
    padding: 17px 14px;
  }

  .brand-item__name {
    font-size: 19px;
  }

  .cta-band {
    padding: 65px 0 60px;
  }

  .cta-band h2 {
    font-size: clamp(38px, 11.4vw, 54px);
    line-height: 1;
  }

  .cta-band__note {
    margin-top: 21px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 33px 20px;
    padding-bottom: 39px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-col:last-child {
    grid-column: 1 / -1;
  }

  .footer-watermark {
    font-size: 34vw;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
    font-size: 9px;
    line-height: 1.8;
  }

  .page-hero {
    min-height: 390px;
    padding-top: calc(var(--header-h) + 63px);
    padding-bottom: 31px;
  }

  .page-hero h1 {
    font-size: clamp(45px, 13vw, 70px);
  }

  .breadcrumb {
    margin-bottom: 31px;
  }

  .page-hero__meta {
    margin-top: 26px;
  }

  .page-hero__index {
    top: 53%;
    font-size: 38vw;
  }

  .filter-chips {
    gap: 5px;
  }

  .filter-chip {
    padding: 8px 10px;
    font-size: 8px;
  }

  .catalog-count {
    font-size: 8px;
  }

  .product-process__grid {
    grid-template-columns: 1fr;
  }

  .product-process__step {
    min-height: 150px;
    border-left: 1px solid var(--line);
  }

  .product-process__step:first-child {
    border-left: 1px solid var(--line);
  }

  .product-process__step h3 {
    margin-top: 22px;
  }

  .material-strip {
    grid-template-columns: 1fr;
  }

  .material-strip__intro {
    grid-column: auto;
  }

  .about-intro__visual {
    min-height: 300px;
  }

  .about-brief h2 {
    font-size: clamp(37px, 11vw, 50px);
  }

  .about-brief__copy .about-brief__lead {
    font-size: 15px;
  }

  .about-brief__facts > div {
    padding: 11px 10px;
  }

  .about-brief__facts span {
    font-size: 23px;
  }

  .about-intro__copy p {
    font-size: 13px;
  }

  .definition-list {
    grid-template-columns: 1fr;
  }

  .stat-band {
    grid-template-columns: 1fr 1fr;
  }

  .stat-band__item {
    padding: 20px 16px 21px;
  }

  .stat-band__value {
    font-size: 35px;
  }

  .values-grid {
    grid-template-columns: 1fr;
  }

  .value-card {
    min-height: 235px;
  }

  .value-card h3 {
    margin-top: 55px;
  }

  .timeline__item {
    grid-template-columns: 1fr 16px;
    gap: 11px;
    padding: 21px 0;
  }

  .timeline__year {
    grid-column: 1 / -1;
    margin-bottom: -3px;
  }

  .timeline__content {
    grid-column: 1 / -1;
    padding-left: 0;
  }

  .timeline__marker {
    display: none;
  }

  .gate-grid {
    grid-template-columns: 1fr;
  }

  .gate-card {
    min-height: 230px;
  }

  .gate-card h3 {
    margin-top: 45px;
  }

  .checklist {
    grid-template-columns: 1fr;
  }

  .quality-measure__visual {
    min-height: 265px;
  }

  .quality-measure__copy {
    padding: 25px 20px;
  }

  .contact-form__head,
  .inquiry-form {
    padding: 20px;
  }

  .contact-form__head {
    flex-direction: column;
    gap: 6px;
  }

  .contact-form__head span {
    text-align: left;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 17px;
  }

  .form-foot {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .form-foot .btn {
    width: 100%;
  }

  .contact-item {
    grid-template-columns: 1fr;
    gap: 3px;
    padding: 16px 0;
  }

  .contact-item__label {
    font-size: 8px;
    line-height: 1.6;
  }

  .contact-item__value {
    font-size: 13px;
  }

  .map-panel {
    min-height: 245px;
  }

  .map-panel__overlay {
    right: 12px;
    bottom: 12px;
    left: 12px;
    flex-direction: column;
    align-items: flex-start;
    gap: 9px;
    padding: 14px;
  }

  .map-panel__overlay h3 {
    font-size: 19px;
  }

  .inquiry-dialog__head,
  .inquiry-dialog__body {
    padding-right: 19px;
    padding-left: 19px;
  }

  .inquiry-dialog__head h2 {
    font-size: 27px;
  }

  .inquiry-dialog__actions .btn {
    flex: 1 1 auto;
    min-width: 130px;
  }

  .back-to-top {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .site-header,
  .mobile-menu,
  .back-to-top,
  .ticker,
  .cta-band,
  .site-footer {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
  }

  .hero,
  .page-hero {
    min-height: 0;
    padding: 30px 0;
    background: #fff;
    color: #000;
  }

  .hero-art,
  .hero-stats,
  .page-hero__index {
    display: none;
  }
}