/* ==========================================================================
   HEYSEANT — static corporate site
   Design tokens, layout, components and motion.
   No external dependencies.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --bg: #04070c;
  --bg-elev: #070d16;
  --panel: #0a1320;
  --panel-2: #0c1726;
  --text: #e9f2fb;
  --muted: #93a5ba;
  --dim: #6b7f95;
  --cyan: #5ce7ff;
  --cyan-soft: #a7f6ff;
  --blue: #3b82f6;
  --line: rgba(129, 181, 230, 0.14);
  --line-strong: rgba(129, 199, 255, 0.3);
  --grad: linear-gradient(100deg, #b8f8ff 0%, #5ce7ff 42%, #4f8dff 100%);
  --sans: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "SFMono-Regular", "SF Mono", ui-monospace, "JetBrains Mono", "Cascadia Code",
    Menlo, Consolas, monospace;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --radius: 18px;
  --container: 1240px;
}

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

* {
  margin: 0;
}

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 999;
  pointer-events: none;
  opacity: 0.032;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}

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

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

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

h1,
h2,
h3,
h4 {
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

::selection {
  background: rgba(92, 231, 255, 0.28);
  color: #fff;
}

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

section[id] {
  scroll-margin-top: 88px;
}

/* ---------- Utilities ---------- */
.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.mono-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--dim);
}

.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 16px;
  background: var(--cyan);
  color: #041018;
  font-size: 13px;
  border-radius: 6px;
  transform: translateY(-150%);
  transition: transform 0.2s var(--ease);
}

.skip-link:focus {
  transform: none;
}

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 50px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
    border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), color 0.25s var(--ease);
}

.btn .i-arrow {
  width: 16px;
  height: 16px;
  transition: transform 0.25s var(--ease);
}

.btn:hover .i-arrow {
  transform: translateX(3px);
}

.btn-primary {
  background: linear-gradient(180deg, #f2feff 0%, #b4f2ff 55%, #7fe3ff 100%);
  color: #041018;
  box-shadow: 0 0 0 1px rgba(167, 246, 255, 0.35),
    0 14px 38px -16px rgba(92, 231, 255, 0.75);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px rgba(200, 252, 255, 0.6),
    0 20px 48px -16px rgba(92, 231, 255, 0.9);
}

.btn-ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(10, 20, 33, 0.4);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: rgba(92, 231, 255, 0.6);
  background: rgba(92, 231, 255, 0.06);
  transform: translateY(-2px);
}

.btn-small {
  height: 38px;
  padding: 0 16px;
  font-size: 12px;
  border-radius: 7px;
}

.i-phone {
  width: 15px;
  height: 15px;
  flex: none;
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease),
    backdrop-filter 0.35s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.is-scrolled,
body.menu-open .site-header {
  background: rgba(4, 7, 12, 0.82);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  border-bottom-color: var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  height: 88px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--cyan-soft);
  flex: none;
}

.brand-mark {
  width: 38px;
  height: 38px;
  flex: none;
  filter: drop-shadow(0 0 14px rgba(92, 231, 255, 0.22));
}

.brand-name {
  display: flex;
  flex-direction: column;
  gap: 4px;
  line-height: 1;
}

.brand-cn {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.12em;
  color: var(--text);
}

.brand-en {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.36em;
  color: var(--dim);
}

.nav {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-left: auto;
}

.nav a {
  position: relative;
  padding: 8px 0;
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.02em;
  white-space: nowrap;
  transition: color 0.2s var(--ease);
}

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

.nav a:hover,
.nav a.is-active {
  color: var(--text);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}

.header-contact {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: none;
}

.header-phone,
.header-email {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
  transition: color 0.2s var(--ease);
}

.header-phone:hover,
.header-email:hover {
  color: var(--cyan);
}

.i-mail {
  width: 15px;
  height: 15px;
  flex: none;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  flex: none;
  padding: 3px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(10, 20, 33, 0.35);
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.lang-switch > * {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 6px;
  border-radius: 999px;
}

.lang-switch a {
  transition: color 0.2s var(--ease), background 0.2s var(--ease);
}

.lang-switch a:hover {
  color: var(--text);
  background: rgba(92, 231, 255, 0.07);
}

.lang-switch .lang-current {
  color: var(--cyan);
  background: rgba(92, 231, 255, 0.12);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  flex: none;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(10, 20, 33, 0.35);
  color: var(--muted);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background 0.2s var(--ease), transform 0.2s var(--ease);
}

.theme-toggle:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
  transform: rotate(8deg);
}

.theme-toggle svg {
  width: 15px;
  height: 15px;
}

.theme-toggle .icon-moon {
  display: none;
}

html[data-theme="light"] .theme-toggle .icon-sun {
  display: none;
}

html[data-theme="light"] .theme-toggle .icon-moon {
  display: block;
}

.menu-toggle {
  display: none;
  position: relative;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(10, 20, 33, 0.4);
}

.menu-toggle span {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 1px;
  background: var(--text);
  transition: transform 0.3s var(--ease), opacity 0.2s var(--ease);
}

.menu-toggle span:nth-child(1) {
  top: 15px;
}

.menu-toggle span:nth-child(2) {
  top: 20.5px;
}

.menu-toggle span:nth-child(3) {
  top: 26px;
}

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

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

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

/* ---------- Mobile menu ---------- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: flex;
  flex-direction: column;
  padding: 112px 24px 40px;
  background: rgba(4, 7, 12, 0.97);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s var(--ease), visibility 0s linear 0.3s;
  overflow-y: auto;
}

.mobile-menu.is-open {
  visibility: visible;
  opacity: 1;
  transition: opacity 0.3s var(--ease), visibility 0s linear 0s;
}

body.menu-open {
  overflow: hidden;
}

.mobile-nav {
  display: flex;
  flex-direction: column;
}

.mobile-nav a {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: 26px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: color 0.2s var(--ease), padding-left 0.25s var(--ease);
}

.mobile-nav a span {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.mobile-nav a:hover {
  color: var(--cyan);
  padding-left: 6px;
}

.mobile-menu-foot {
  margin-top: auto;
  padding-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mobile-phone {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
}

.mobile-mail {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding-top: 112px;
  overflow: hidden;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(64% 54% at 72% 38%, rgba(24, 104, 190, 0.19), transparent 68%),
    radial-gradient(42% 40% at 12% 12%, rgba(55, 94, 180, 0.11), transparent 70%),
    linear-gradient(180deg, #04070c 0%, #04070c 70%, rgba(4, 7, 12, 0.6) 100%);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(96, 170, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 170, 255, 0.055) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse 70% 62% at 66% 46%, #000 8%, transparent 76%);
  mask-image: radial-gradient(ellipse 70% 62% at 66% 46%, #000 8%, transparent 76%);
}

.hero-aurora {
  position: absolute;
  width: 820px;
  height: 820px;
  right: -120px;
  top: 46%;
  transform: translateY(-50%);
  background: radial-gradient(circle, rgba(47, 143, 255, 0.16) 0%, transparent 62%);
  filter: blur(20px);
}

.hero-ring {
  position: absolute;
  width: 920px;
  height: 920px;
  right: -300px;
  top: 44%;
  transform: translateY(-50%);
  border: 1px solid rgba(92, 231, 255, 0.07);
  border-radius: 50%;
}

.hero-ring::before {
  content: "";
  position: absolute;
  inset: 90px;
  border: 1px dashed rgba(92, 231, 255, 0.07);
  border-radius: 50%;
}

.hero-rail {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%) rotate(90deg);
  transform-origin: center;
  letter-spacing: 0.34em;
  color: rgba(107, 127, 149, 0.6);
  white-space: nowrap;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
  gap: clamp(36px, 5vw, 72px);
  padding-top: 44px;
  padding-bottom: 58px;
  min-height: min(760px, calc(100svh - 150px));
}

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

.status {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 9px;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.17em;
  color: var(--dim);
  text-transform: uppercase;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(92, 231, 255, 0.9);
  animation: pulse 2.4s ease-in-out infinite;
}

.status-sep {
  color: rgba(147, 165, 186, 0.32);
}

.status-live {
  color: var(--cyan);
}

.hero-title {
  margin-bottom: 28px;
  font-size: clamp(40px, 5.6vw, 78px);
  line-height: 1.1;
  letter-spacing: -0.035em;
  font-weight: 600;
}

.hero-title .line {
  display: block;
}

.hero-title-en {
  font-size: clamp(42px, 5.6vw, 80px);
  line-height: 1.05;
  letter-spacing: -0.045em;
}

.hero-lead {
  max-width: 530px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.hero-note {
  display: flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-size: 11.5px;
  color: var(--dim);
}

.hero-note svg {
  width: 13px;
  height: 13px;
  color: var(--cyan);
  flex: none;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, auto);
  justify-content: start;
  gap: 0;
  margin-top: 52px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  max-width: 560px;
}

.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 0 24px;
  border-right: 1px solid var(--line);
}

.hero-stats li:first-child {
  padding-left: 0;
}

.hero-stats li:last-child {
  border-right: 0;
}

.hero-stats--en {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 620px;
}

.hero-stats--en li {
  padding: 0 18px;
}

.hero-stats--en .stat-label {
  white-space: normal;
  line-height: 1.35;
}

.stat-num {
  font-size: 27px;
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.stat-num small {
  margin-left: 3px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--cyan);
}

.stat-label {
  font-size: 10.5px;
  letter-spacing: 0.05em;
  color: var(--dim);
  white-space: nowrap;
}

/* Hero visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: flex-end;
  perspective: 1100px;
}

.visual-frame {
  --mx: 50%;
  --my: 42%;
  position: relative;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 536px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    linear-gradient(155deg, rgba(13, 26, 43, 0.82), rgba(5, 10, 18, 0.92)),
    var(--panel);
  box-shadow: 0 50px 130px -50px rgba(24, 130, 255, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  transform-style: preserve-3d;
  transition: transform 0.25s ease-out, border-color 0.3s var(--ease);
  will-change: transform;
}

.visual-frame:hover {
  border-color: rgba(129, 199, 255, 0.28);
}

.visual-frame::before,
.visual-frame::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  border-color: rgba(92, 231, 255, 0.48);
  border-style: solid;
  pointer-events: none;
}

.visual-frame::before {
  top: 8px;
  left: 8px;
  border-width: 1px 0 0 1px;
  border-radius: 6px 0 0;
}

.visual-frame::after {
  right: 8px;
  bottom: 8px;
  border-width: 0 1px 1px 0;
  border-radius: 0 0 6px;
}

.frame-glow {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(280px circle at var(--mx) var(--my),
      rgba(92, 231, 255, 0.11), transparent 65%);
  pointer-events: none;
  z-index: 2;
}

.frame-top,
.frame-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 4px 8px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--dim);
  white-space: nowrap;
}

.frame-top {
  padding-bottom: 12px;
}

.frame-bottom {
  padding-top: 12px;
}

.frame-status {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--cyan);
}

.frame-status i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(92, 231, 255, 0.9);
}

.frame-canvas {
  position: relative;
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  padding: 12px;
  border: 1px solid rgba(129, 181, 230, 0.09);
  border-radius: 16px;
  overflow: hidden;
  background:
    radial-gradient(60% 60% at 50% 46%, rgba(22, 71, 122, 0.34), transparent 70%),
    linear-gradient(rgba(92, 231, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 231, 255, 0.045) 1px, transparent 1px),
    #050b13;
  background-size: auto, 34px 34px, 34px 34px, auto;
}

.frame-canvas::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg,
      transparent 0%,
      rgba(92, 231, 255, 0.055) 48.6%,
      rgba(92, 231, 255, 0.32) 50%,
      rgba(92, 231, 255, 0.055) 51.4%,
      transparent 100%);
  background-size: 100% 220%;
  background-repeat: no-repeat;
  animation: scan 8s linear infinite;
  opacity: 0.7;
}

.flange-svg {
  width: 100%;
  height: auto;
  max-height: 470px;
  filter: drop-shadow(0 24px 60px rgba(0, 120, 255, 0.18));
}

.orbit-slow,
.orbit-rev,
.scan-arc,
.globe-sweep {
  transform-origin: 50% 50%;
  transform-box: view-box;
}

.orbit-slow {
  animation: spin 100s linear infinite;
}

.orbit-rev {
  animation: spin 72s linear infinite reverse;
}

.scan-arc {
  animation: spin 26s linear infinite;
  opacity: 0.65;
}

.bars {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 10px;
}

.bars i {
  display: block;
  width: 2px;
  background: rgba(92, 231, 255, 0.48);
}

.bars i:nth-child(1) {
  height: 4px;
}

.bars i:nth-child(2) {
  height: 7px;
}

.bars i:nth-child(3) {
  height: 5px;
}

.bars i:nth-child(4) {
  height: 9px;
}

.bars i:nth-child(5) {
  height: 6px;
}

.spec-tag {
  position: absolute;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: rgba(4, 10, 18, 0.78);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
  font-family: var(--mono);
  pointer-events: none;
}

.spec-k {
  font-size: 7px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.spec-v {
  font-size: 8.5px;
  letter-spacing: 0.08em;
  color: var(--cyan-soft);
}

.spec-tag-a {
  top: 14px;
  left: 14px;
}

.spec-tag-b {
  top: 46%;
  right: 12px;
}

.spec-tag-c {
  bottom: 16px;
  left: 14px;
}

/* Ticker */
.hero-ticker {
  position: relative;
  margin-top: 8px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: rgba(6, 12, 20, 0.55);
}

.ticker {
  overflow: hidden;
  padding: 16px 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.ticker-track {
  display: flex;
  align-items: center;
  width: max-content;
  animation: marquee 46s linear infinite;
}

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

.ticker-item {
  display: inline-flex;
  align-items: center;
  gap: 26px;
  padding-right: 26px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--dim);
  white-space: nowrap;
}

.ticker-item::after {
  content: "";
  width: 4px;
  height: 4px;
  border: 1px solid rgba(92, 231, 255, 0.55);
  transform: rotate(45deg);
  flex: none;
}

/* ---------- Section shell ---------- */
.section {
  position: relative;
  padding: clamp(88px, 10vw, 146px) 0;
}

.section-head {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 24px 64px;
  align-items: end;
  margin-bottom: clamp(44px, 6vw, 66px);
}

.eyebrow {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.24em;
  color: var(--cyan);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 26px;
  height: 1px;
  flex: none;
  background: var(--cyan);
  opacity: 0.6;
}

.eyebrow span {
  color: var(--dim);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.section-head h2 {
  font-size: clamp(32px, 4.4vw, 56px);
  line-height: 1.16;
  letter-spacing: -0.035em;
}

html[lang="en"] .section-head h2 {
  font-size: clamp(30px, 3.8vw, 50px);
  letter-spacing: -0.04em;
}

.head-note {
  justify-self: end;
  max-width: 420px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}

/* Reveal */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.85s var(--ease), transform 0.85s var(--ease);
}

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

/* ---------- About ---------- */
.about {
  overflow: hidden;
}

.about::before {
  content: "";
  position: absolute;
  width: 700px;
  height: 700px;
  left: -320px;
  top: 20%;
  background: radial-gradient(circle, rgba(25, 93, 170, 0.13), transparent 65%);
  pointer-events: none;
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(0, 0.68fr);
  gap: 20px;
}

.panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(12, 23, 38, 0.72), rgba(6, 11, 19, 0.78));
  overflow: hidden;
}

.panel::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(70% 60% at 100% 0%, rgba(92, 231, 255, 0.045), transparent 60%);
}

.about-story {
  padding: clamp(28px, 3.4vw, 42px);
}

.panel-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: clamp(28px, 3vw, 44px);
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.story-lead {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin-bottom: 20px;
  color: var(--text);
  font-size: clamp(20px, 2.1vw, 26px);
  line-height: 1.62;
  letter-spacing: -0.015em;
}

.about-story > p:not(.story-lead) {
  position: relative;
  z-index: 1;
  max-width: 660px;
  margin-bottom: 12px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}

.values {
  position: relative;
  z-index: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 30px;
}

.value {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 12px;
  color: var(--text);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.value:hover {
  border-color: var(--line-strong);
  background: rgba(92, 231, 255, 0.05);
}

.value span {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--cyan);
}

.about-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.metric {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 26px;
  min-height: 152px;
  padding: 22px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.metric:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.metric-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.metric-label {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.metric-index {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: rgba(107, 127, 149, 0.5);
}

.metric-value {
  font-size: clamp(20px, 2vw, 25px);
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text);
}

.metric-value small {
  margin-left: 4px;
  font-size: 11px;
  font-weight: 400;
  color: var(--muted);
  letter-spacing: 0;
}

.metric-sub {
  margin-top: 5px;
  font-size: 10.5px;
  line-height: 1.6;
  color: var(--dim);
}

.motto {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 26px;
  margin-top: 20px;
  padding: 28px clamp(24px, 3vw, 38px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(100deg, rgba(92, 231, 255, 0.065), rgba(59, 130, 246, 0.025) 44%, transparent 80%);
}

.motto-mark {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 54px;
  line-height: 0.8;
  color: var(--cyan);
  opacity: 0.4;
}

.motto p {
  font-size: clamp(17px, 1.9vw, 23px);
  letter-spacing: 0.01em;
  color: var(--text);
}

.motto cite {
  font-family: var(--mono);
  font-size: 8px;
  font-style: normal;
  letter-spacing: 0.18em;
  color: var(--dim);
  white-space: nowrap;
}

/* ---------- Products ---------- */
.products {
  overflow: hidden;
}

.products::before {
  content: "";
  position: absolute;
  width: 900px;
  height: 700px;
  right: -300px;
  top: 8%;
  background: radial-gradient(circle, rgba(35, 105, 200, 0.12), transparent 66%);
  pointer-events: none;
}

.products-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(24px, 2.6vw, 34px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(160deg, rgba(12, 24, 40, 0.82), rgba(5, 10, 18, 0.9));
  overflow: hidden;
  isolation: isolate;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.product-card:hover {
  border-color: rgba(129, 199, 255, 0.34);
  transform: translateY(-4px);
  box-shadow: 0 30px 80px -50px rgba(40, 150, 255, 0.65);
}

.product-card::before,
.product-card::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  z-index: 3;
  border-color: rgba(92, 231, 255, 0.42);
  border-style: solid;
  opacity: 0;
  transition: opacity 0.35s var(--ease);
  pointer-events: none;
}

.product-card::before {
  top: 13px;
  left: 13px;
  border-width: 1px 0 0 1px;
}

.product-card::after {
  right: 13px;
  bottom: 13px;
  border-width: 0 1px 1px 0;
}

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

.product-featured {
  grid-column: span 7;
  grid-row: span 2;
  min-height: 640px;
  padding: clamp(28px, 3.2vw, 42px);
}

.product-small {
  grid-column: span 5;
  min-height: 310px;
}

.product-top {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.product-index {
  color: var(--cyan);
}

.product-en {
  text-align: right;
}

.product-card h3 {
  position: relative;
  z-index: 2;
  margin-top: 26px;
  font-size: clamp(28px, 3vw, 38px);
  letter-spacing: -0.025em;
}

.product-small h3 {
  font-size: clamp(24px, 2.4vw, 30px);
}

.product-desc {
  position: relative;
  z-index: 2;
  max-width: 540px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
}

.product-small .product-desc {
  max-width: 360px;
  font-size: 12.5px;
}

.chips {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 24px;
}

.chips li {
  padding: 5px 10px;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(4, 10, 18, 0.35);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.product-card:hover .chips li {
  border-color: rgba(129, 199, 255, 0.24);
}

.chips li:hover {
  color: var(--cyan);
  border-color: var(--line-strong);
}

.product-spec-row {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.product-spec-row span {
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.product-spec-row p {
  margin-top: 5px;
  font-size: 12px;
  color: var(--text);
}

.product-featured .card-link {
  margin-top: 0;
  padding-top: 20px;
}

.card-link {
  position: relative;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  align-self: flex-start;
  margin-top: auto;
  padding-top: 26px;
  font-size: 12.5px;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.product-small .card-link {
  padding-top: 18px;
}

.card-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.25s var(--ease);
}

.card-link:hover {
  color: var(--cyan);
}

.card-link:hover svg {
  transform: translateX(3px);
}

.product-art {
  position: absolute;
  z-index: 1;
  color: var(--cyan);
  opacity: 0.15;
  pointer-events: none;
  transition: transform 0.7s var(--ease), opacity 0.5s var(--ease);
}

.product-art-flange {
  width: min(62%, 410px);
  right: -6%;
  bottom: -9%;
  opacity: 0.18;
}

.product-art-cell {
  width: 200px;
  right: -38px;
  bottom: -34px;
  opacity: 0.12;
}

.product-art-panel {
  width: 210px;
  right: -34px;
  bottom: -40px;
  opacity: 0.12;
}

.product-card:hover .product-art {
  opacity: 0.28;
}

.product-card:hover .product-art-flange {
  transform: rotate(8deg) scale(1.03);
}

.product-card:hover .product-art-cell {
  transform: translateY(-5px);
}

.product-card:hover .product-art-panel {
  transform: translateY(-5px);
}

/* ---------- Materials ---------- */
.materials {
  overflow: hidden;
}

.materials::before {
  content: "";
  position: absolute;
  width: 760px;
  height: 700px;
  left: 8%;
  top: 24%;
  background: radial-gradient(circle, rgba(32, 100, 180, 0.1), transparent 66%);
  pointer-events: none;
}

.materials-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.material {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 348px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(11, 22, 37, 0.72), rgba(5, 10, 18, 0.82));
  overflow: hidden;
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease),
    transform 0.35s var(--ease);
}

.material::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  transform: scaleX(0);
  transition: transform 0.5s var(--ease);
}

.material:hover {
  border-color: rgba(129, 199, 255, 0.3);
  background: linear-gradient(160deg, rgba(14, 29, 49, 0.82), rgba(6, 12, 21, 0.9));
  transform: translateY(-4px);
}

.material:hover::before {
  transform: scaleX(1);
}

.material-code {
  position: absolute;
  top: 4px;
  right: -8px;
  font-family: var(--mono);
  font-size: clamp(64px, 6.4vw, 92px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.07em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(129, 181, 230, 0.13);
  pointer-events: none;
  transition: -webkit-text-stroke-color 0.4s var(--ease);
}

.material:hover .material-code {
  -webkit-text-stroke-color: rgba(92, 231, 255, 0.24);
}

.material-symbol {
  position: relative;
  z-index: 1;
  align-self: flex-start;
  padding: 6px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.material h3 {
  position: relative;
  z-index: 1;
  margin-top: auto;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.material-en {
  position: relative;
  z-index: 1;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.material-desc {
  position: relative;
  z-index: 1;
  margin-top: 14px;
  font-size: 11.5px;
  line-height: 1.8;
  color: var(--muted);
}

.material-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 18px;
}

.material-tags li {
  padding: 4px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 9.5px;
  color: var(--dim);
}

.materials-note {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 14px;
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
  font-size: 12.5px;
  color: var(--muted);
}

.materials-note .mono-label {
  margin-right: 4px;
  color: var(--cyan);
}

.materials-note a {
  margin-left: auto;
  color: var(--text);
  border-bottom: 1px solid var(--line-strong);
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.materials-note a:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- Process ---------- */
.process {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 14, 24, 0.5), rgba(4, 7, 12, 0.2));
}

.process-list {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 24px;
}

.process-list::before {
  content: "";
  position: absolute;
  top: 19px;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(92, 231, 255, 0.5), var(--line) 28%, var(--line));
  pointer-events: none;
}

.process-step {
  position: relative;
}

.step-dot {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: var(--bg);
  font-family: var(--mono);
  font-size: 9px;
  color: var(--cyan);
}

.process-step:first-child .step-dot {
  border-color: rgba(92, 231, 255, 0.7);
  box-shadow: 0 0 0 4px rgba(92, 231, 255, 0.05), 0 0 28px rgba(92, 231, 255, 0.18);
}

.step-body {
  margin-top: 26px;
}

.step-title {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.step-desc {
  max-width: 200px;
  margin-top: 10px;
  font-size: 12px;
  line-height: 1.85;
  color: var(--muted);
}

.process-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px 30px;
  margin-top: 58px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.process-foot p {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 12.5px;
  color: var(--muted);
}

.process-foot .mono-label {
  color: var(--cyan);
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text);
  transition: color 0.2s var(--ease);
}

.link-arrow span {
  color: var(--cyan);
  transition: transform 0.25s var(--ease);
}

.link-arrow:hover {
  color: var(--cyan);
}

.link-arrow:hover span {
  transform: translateX(4px);
}

/* ---------- Global ---------- */
.global {
  overflow: hidden;
}

.global::before {
  content: "";
  position: absolute;
  width: 900px;
  height: 900px;
  right: -280px;
  top: 30%;
  background: radial-gradient(circle, rgba(34, 113, 200, 0.12), transparent 64%);
  pointer-events: none;
}

.global-grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  align-items: center;
  gap: clamp(40px, 6vw, 84px);
}

.global-copy .mono-label {
  margin-bottom: 14px;
  color: var(--cyan);
}

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

.region {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  transition: padding 0.3s var(--ease), background 0.3s var(--ease);
}

.region-num {
  font-family: var(--mono);
  font-size: 8.5px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.region-cn {
  font-size: 18px;
  letter-spacing: 0.03em;
  color: var(--text);
  transition: color 0.25s var(--ease);
}

.region-en {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  color: var(--dim);
  white-space: nowrap;
}

.region.is-on {
  padding-left: 10px;
  background: linear-gradient(90deg, rgba(92, 231, 255, 0.055), transparent 75%);
}

.region.is-on .region-cn {
  color: var(--cyan);
}

.region.is-on .region-num {
  color: var(--cyan);
}

.global-footnote {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.global-footnote span {
  color: var(--cyan);
  font-size: 7px;
}

.globe-panel {
  position: relative;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: radial-gradient(62% 62% at 50% 45%, rgba(16, 48, 86, 0.42), rgba(5, 10, 18, 0.72));
  overflow: hidden;
}

.globe-panel::before {
  content: "";
  position: absolute;
  width: 56%;
  aspect-ratio: 1;
  left: 22%;
  top: 20%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 153, 255, 0.16), transparent 66%);
  filter: blur(18px);
  pointer-events: none;
}

.globe-hud {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 2px 4px 8px;
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.14em;
  color: var(--dim);
}

.globe-svg {
  position: relative;
  z-index: 1;
  width: 100%;
  height: auto;
}

.globe-sweep {
  animation: spin 60s linear infinite reverse;
}

.route {
  stroke: rgba(92, 231, 255, 0.17);
  stroke-width: 1;
  stroke-dasharray: 3 6;
  transition: stroke 0.25s var(--ease), stroke-width 0.25s var(--ease);
}

.route.is-on {
  stroke: rgba(92, 231, 255, 0.8);
  stroke-width: 1.4;
  stroke-dasharray: 4 4;
  animation: dash 2s linear infinite;
}

.marker .ping {
  opacity: 0.4;
  transform-origin: center;
  animation: ping 3.4s ease-out infinite;
}

.marker .dot {
  transition: r 0.25s var(--ease);
}

.marker.is-on .dot {
  r: 5;
}

.marker.is-on text {
  fill: var(--cyan);
}

.marker:nth-child(2) .ping {
  animation-delay: 0.5s;
}

.marker:nth-child(3) .ping {
  animation-delay: 1s;
}

.marker:nth-child(4) .ping {
  animation-delay: 1.5s;
}

.marker:nth-child(5) .ping {
  animation-delay: 2s;
}

.origin-ping {
  transform-origin: center;
  animation: ping 3.4s ease-out infinite;
}

.globe-legend {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 4px;
  padding: 12px 4px 2px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.12em;
  color: var(--dim);
}

.globe-legend span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.legend-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px rgba(92, 231, 255, 0.7);
}

.legend-origin {
  background: #fff;
  box-shadow: 0 0 6px rgba(255, 255, 255, 0.7);
}

/* ---------- Contact ---------- */
.contact {
  padding-top: clamp(60px, 8vw, 110px);
}

.contact-panel {
  position: relative;
  padding: clamp(28px, 5.6vw, 68px);
  border: 1px solid rgba(129, 199, 255, 0.24);
  border-radius: 26px;
  background:
    linear-gradient(142deg, rgba(12, 27, 46, 0.94), rgba(5, 10, 18, 0.97)),
    var(--panel);
  overflow: hidden;
  isolation: isolate;
}

.contact-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(92, 231, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 231, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 60% 80% at 88% 10%, #000, transparent 72%);
  mask-image: radial-gradient(ellipse 60% 80% at 88% 10%, #000, transparent 72%);
  pointer-events: none;
}

.contact-glow {
  position: absolute;
  z-index: -1;
  width: 620px;
  height: 620px;
  right: -100px;
  top: -260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(44, 151, 255, 0.2), transparent 65%);
  pointer-events: none;
}

.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: clamp(34px, 5vw, 72px);
  align-items: start;
}

.contact-main h2 {
  margin: 16px 0 20px;
  font-size: clamp(32px, 4.5vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.035em;
}

.contact-lead {
  max-width: 520px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.9;
}

.contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 32px 0 44px;
}

.contact-info {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px 32px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.contact-info dt {
  margin-bottom: 6px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  color: var(--dim);
  text-transform: uppercase;
}

.contact-info dd {
  color: var(--text);
  font-size: 13px;
  line-height: 1.8;
}

.contact-info a {
  transition: color 0.2s var(--ease);
}

.contact-info a:hover {
  color: var(--cyan);
}

.inquiry {
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(4, 9, 16, 0.6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.inquiry-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.inquiry-live {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--cyan);
}

.inquiry-live i {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(92, 231, 255, 0.8);
}

.inquiry h3 {
  margin: 22px 0 12px;
  font-size: 19px;
  letter-spacing: -0.02em;
}

.inquiry-list li {
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: center;
  gap: 8px;
  padding: 11px 0;
  border-bottom: 1px solid rgba(129, 181, 230, 0.09);
  font-size: 12.5px;
  color: var(--text);
}

.inquiry-list li span {
  font-family: var(--mono);
  font-size: 8px;
  color: var(--cyan);
}

.inquiry-list li em {
  font-family: var(--mono);
  font-size: 7px;
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--dim);
  text-align: right;
}

.inquiry-note {
  margin: 20px 0;
  font-size: 10.5px;
  line-height: 1.8;
  color: var(--dim);
}

.inquiry-note a {
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}

.inquiry-note a:hover {
  color: var(--cyan);
}

.inquiry-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--text);
  font-size: 12.5px;
  transition: color 0.2s var(--ease);
}

.inquiry-link svg {
  width: 14px;
  height: 14px;
  transition: transform 0.25s var(--ease);
}

.inquiry-link:hover {
  color: var(--cyan);
}

.inquiry-link:hover svg {
  transform: translateX(3px);
}

/* ---------- Footer ---------- */
.site-footer {
  position: relative;
  padding: 72px 0 26px;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(7, 13, 22, 0.4), rgba(4, 7, 12, 0.9));
  overflow: hidden;
}

.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.65fr) minmax(0, 0.65fr) minmax(0, 1fr);
  gap: 40px;
  padding-bottom: 54px;
}

.footer-brand .brand {
  color: var(--cyan-soft);
}

.footer-brand p {
  max-width: 290px;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 8px;
  line-height: 1.9;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.footer-col h3 {
  margin-bottom: 16px;
  font-family: var(--mono);
  font-size: 8px;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--dim);
}

.footer-col a {
  display: block;
  margin-bottom: 9px;
  font-size: 12.5px;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

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

.footer-contact address {
  font-style: normal;
  font-size: 12.5px;
  line-height: 2;
  color: var(--muted);
}

.footer-contact address a {
  display: inline;
  margin: 0;
}

.footer-wordmark {
  font-family: var(--mono);
  font-size: clamp(44px, 13.4vw, 184px);
  font-weight: 600;
  line-height: 0.8;
  letter-spacing: -0.045em;
  text-align: center;
  color: transparent;
  -webkit-text-stroke: 1px rgba(129, 181, 230, 0.14);
  user-select: none;
  white-space: nowrap;
  margin-bottom: 38px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  font-size: 10px;
  color: var(--dim);
}

.footer-bottom a {
  transition: color 0.2s var(--ease);
}

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

.footer-bottom p {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 7px;
}

.security-note {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.06em;
}

.security-note svg {
  width: 12px;
  height: 12px;
  color: var(--cyan);
  opacity: 0.7;
}

.to-top {
  position: fixed;
  right: 22px;
  bottom: calc(22px + env(safe-area-inset-bottom, 0px));
  z-index: 90;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  background: rgba(5, 11, 20, 0.82);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--muted);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease),
    border-color 0.2s var(--ease), color 0.2s var(--ease);
}

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

.to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.to-top:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* ---------- Motion ---------- */
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    box-shadow: 0 0 12px rgba(92, 231, 255, 0.9);
  }
  50% {
    opacity: 0.45;
    box-shadow: 0 0 4px rgba(92, 231, 255, 0.5);
  }
}

@keyframes marquee {
  to {
    transform: translateX(-50%);
  }
}

@keyframes scan {
  from {
    background-position: 0 -110%;
  }
  to {
    background-position: 0 110%;
  }
}

@keyframes dash {
  to {
    stroke-dashoffset: -16;
  }
}

@keyframes ping {
  0% {
    transform: scale(0.4);
    opacity: 0.7;
  }
  70%,
  100% {
    transform: scale(1.9);
    opacity: 0;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .status,
  .hero-title .line,
  .hero-lead,
  .hero-actions,
  .hero-note,
  .hero-stats {
    animation: rise 0.9s var(--ease) backwards;
  }

  .status {
    animation-delay: 0.05s;
  }

  .hero-title .line:nth-child(1) {
    animation-delay: 0.12s;
  }

  .hero-title .line:nth-child(2) {
    animation-delay: 0.2s;
  }

  .hero-title .line:nth-child(3) {
    animation-delay: 0.28s;
  }

  .hero-lead {
    animation-delay: 0.36s;
  }

  .hero-actions {
    animation-delay: 0.44s;
  }

  .hero-note {
    animation-delay: 0.5s;
  }

  .hero-stats {
    animation-delay: 0.58s;
  }

  .hero-visual {
    animation: rise 1.05s 0.3s var(--ease) backwards;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 1360px) {
  .header-phone {
    display: none;
  }
}

@media (max-width: 1180px) {
  .hero-rail {
    display: none;
  }

  .hero-title {
    font-size: clamp(40px, 5.8vw, 68px);
  }
}

@media (max-width: 1200px) {
  .nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }
}

@media (max-width: 1024px) {
  .nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .header-inner {
    height: 76px;
  }

  .hero {
    padding-top: 100px;
  }

  .hero-inner {
    min-height: 0;
    padding-top: 36px;
    padding-bottom: 48px;
  }

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

  .about-metrics {
    grid-template-columns: repeat(4, 1fr);
  }

  .metric {
    min-height: 140px;
  }

  .product-featured {
    grid-column: span 12;
    grid-row: auto;
    min-height: 540px;
  }

  .product-small {
    grid-column: span 6;
    min-height: 320px;
  }

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

  .material {
    min-height: 310px;
  }

  .global-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .globe-panel {
    max-width: 620px;
    margin-inline: auto;
    width: 100%;
  }

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

  .inquiry {
    max-width: 560px;
  }

  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 34px;
  }
}

@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 44px;
  }

  .hero-visual {
    justify-content: center;
  }

  .visual-frame {
    max-width: 520px;
  }

  .hero-stats {
    max-width: 620px;
  }

  .hero-title {
    font-size: clamp(42px, 8vw, 64px);
  }

  .about-metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .metric {
    min-height: 150px;
  }

  .process-list {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .process-list::before {
    top: 0;
    bottom: 0;
    left: 19px;
    right: auto;
    width: 1px;
    height: auto;
    background: linear-gradient(180deg, rgba(92, 231, 255, 0.5), var(--line) 72%);
  }

  .process-step {
    display: grid;
    grid-template-columns: 38px 1fr;
    gap: 20px;
    padding: 22px 0;
  }

  .step-body {
    margin-top: 0;
  }

  .step-desc {
    max-width: 480px;
  }
}

@media (max-width: 720px) {
  .container {
    width: calc(100% - 40px);
  }

  .section-head {
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: start;
  }

  .head-note {
    justify-self: start;
    max-width: 560px;
  }

  .hero-title {
    font-size: clamp(38px, 10.2vw, 58px);
  }

  .hero-stats {
    grid-template-columns: 1fr 1fr;
    gap: 18px 0;
  }

  .hero-stats li {
    padding: 0 20px;
  }

  .hero-stats li:nth-child(2) {
    border-right: 0;
  }

  .hero-stats li:nth-child(3) {
    padding-left: 0;
  }

  .hero-stats li:nth-child(n + 3) {
    padding-top: 16px;
    border-top: 1px solid var(--line);
  }

  .product-small {
    grid-column: span 12;
    min-height: 300px;
  }

  .product-featured {
    min-height: 0;
  }

  .materials-note a {
    margin-left: 0;
  }

  .motto {
    grid-template-columns: auto 1fr;
    gap: 18px;
  }

  .motto cite {
    grid-column: 2;
  }

  .contact-info {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-actions .btn {
    flex: 1 1 220px;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }

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

  .footer-bottom {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .header-contact {
    display: none;
  }
}

@media (max-width: 560px) {
  .container {
    width: calc(100% - 36px);
  }

  .lang-switch {
    font-size: 8px;
  }

  .lang-switch > * {
    min-width: 22px;
    height: 22px;
    padding: 0 5px;
  }

  .header-inner {
    height: 70px;
    gap: 14px;
  }

  .brand {
    gap: 9px;
  }

  .brand-mark {
    width: 32px;
    height: 32px;
  }

  .brand-cn {
    font-size: 15px;
  }

  .brand-en {
    font-size: 7px;
    letter-spacing: 0.28em;
  }

  .header-actions {
    gap: 8px;
  }

  .header-actions .btn-small {
    height: 36px;
    padding: 0 12px;
    font-size: 11px;
  }

  .menu-toggle {
    width: 38px;
    height: 38px;
  }

  .menu-toggle span {
    left: 10px;
    right: 10px;
  }

  .mobile-menu {
    padding: 96px 20px 32px;
  }

  .mobile-nav a {
    font-size: 23px;
  }

  .hero {
    padding-top: 92px;
  }

  .status {
    gap: 7px;
    font-size: 8px;
    letter-spacing: 0.12em;
  }

  .hero-title {
    font-size: clamp(36px, 10.4vw, 48px);
    margin-bottom: 22px;
  }

  .hero-lead {
    font-size: 14px;
  }

  .hero-actions {
    margin-top: 28px;
  }

  .hero-actions .btn {
    flex: 1 1 100%;
  }

  .hero-note {
    font-size: 10.5px;
  }

  .hero-stats {
    margin-top: 40px;
    padding-top: 22px;
  }

  .stat-num {
    font-size: 23px;
  }

  .stat-label {
    font-size: 9.5px;
  }

  .visual-frame {
    border-radius: 18px;
    padding: 8px;
  }

  .frame-top,
  .frame-bottom {
    font-size: 6.5px;
    letter-spacing: 0.1em;
    padding-left: 5px;
    padding-right: 5px;
  }

  .frame-canvas {
    padding: 6px;
    border-radius: 12px;
  }

  .spec-tag {
    padding: 6px 8px;
  }

  .spec-k {
    font-size: 6px;
  }

  .spec-v {
    font-size: 7px;
  }

  .spec-tag-b {
    display: none;
  }

  .hero-ticker .ticker {
    padding: 13px 0;
  }

  .ticker-item {
    font-size: 8.5px;
    gap: 20px;
    padding-right: 20px;
  }

  .about-metrics {
    grid-template-columns: 1fr;
  }

  .metric {
    min-height: 124px;
  }

  .motto {
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 24px;
  }

  .motto-mark {
    display: none;
  }

  .motto cite {
    grid-column: 1;
  }

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

  .material {
    min-height: 280px;
  }

  .material-code {
    font-size: 78px;
  }

  .process-foot {
    margin-top: 42px;
  }

  .region {
    grid-template-columns: 30px 1fr auto;
    gap: 10px;
    padding: 14px 0;
  }

  .region-cn {
    font-size: 16px;
  }

  .globe-panel {
    padding: 12px;
  }

  .globe-hud {
    font-size: 6px;
  }

  .globe-legend {
    font-size: 6px;
  }

  .contact-panel {
    border-radius: 20px;
    padding: 24px 20px;
  }

  .contact-main h2 {
    font-size: clamp(28px, 7.8vw, 42px);
  }

  .contact-actions {
    margin: 26px 0 34px;
  }

  .inquiry {
    padding: 20px;
  }

  .inquiry-list li {
    grid-template-columns: 24px 1fr;
  }

  .inquiry-list li em {
    display: none;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .footer-wordmark {
    font-size: 12.6vw;
    margin-bottom: 26px;
  }

  .to-top {
    right: 14px;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px));
    width: 38px;
    height: 38px;
  }
}

@media (max-width: 400px) {
  .header-actions .btn-small {
    display: none;
  }

  .hero-title {
    font-size: 35px;
  }

  .spec-tag-c {
    display: none;
  }

  .footer-bottom {
    font-size: 9px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

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

  .ticker-track {
    animation: none;
    flex-wrap: wrap;
    width: auto;
    white-space: normal;
  }

  .route.is-on,
  .marker .ping,
  .origin-ping,
  .frame-canvas::after {
    animation: none;
  }
}

/* ==========================================================================
   Inner pages: page hero, catalogs, news, articles, careers, contact
   ========================================================================== */

/* ---------- Page hero ---------- */
.page-hero {
  position: relative;
  padding: 154px 0 66px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  isolation: isolate;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(52% 60% at 78% 30%, rgba(28, 108, 200, 0.16), transparent 68%),
    linear-gradient(180deg, #04070c 0%, rgba(4, 7, 12, 0.94) 74%, rgba(4, 7, 12, 0.7) 100%);
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(96, 170, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96, 170, 255, 0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 72% 74% at 70% 28%, #000 4%, transparent 76%);
  mask-image: radial-gradient(ellipse 72% 74% at 70% 28%, #000 4%, transparent 76%);
}

.page-hero::after {
  content: "";
  position: absolute;
  width: 640px;
  height: 640px;
  right: -270px;
  top: -250px;
  border: 1px solid rgba(92, 231, 255, 0.08);
  border-radius: 50%;
  pointer-events: none;
}

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

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 34px;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
}

.breadcrumb a {
  transition: color 0.2s var(--ease);
}

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

.breadcrumb span[aria-current="page"] {
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0.02em;
}

.page-hero .eyebrow {
  margin-bottom: 22px;
}

.page-hero-main {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: end;
}

.page-title {
  font-size: clamp(38px, 5.4vw, 68px);
  line-height: 1.1;
  letter-spacing: -0.04em;
}

html[lang="en"] .page-title {
  font-size: clamp(34px, 4.6vw, 58px);
}

.page-lead {
  max-width: 520px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.95;
}

.page-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 34px;
}

.page-meta li {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 7px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.1em;
  color: var(--dim);
  text-transform: uppercase;
}

.page-meta li span {
  color: var(--dim);
}

.page-meta li strong {
  font-family: var(--sans);
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--text);
  text-transform: none;
}

/* ---------- Page sections ---------- */
.page-section {
  position: relative;
  padding: clamp(64px, 7.5vw, 108px) 0;
}

.page-section--soft {
  border-block: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(8, 16, 28, 0.55), rgba(4, 7, 12, 0.2));
}

.page-section--cta {
  padding-top: 0;
}

/* ---------- About page additions ---------- */
.origin-card {
  position: relative;
  min-height: 330px;
  padding: 30px;
  overflow: hidden;
}

.origin-coord {
  margin: 30px 0 16px;
  font-family: var(--mono);
  font-size: clamp(38px, 4.2vw, 56px);
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--cyan-soft);
}

.origin-note {
  max-width: 300px;
  font-size: 12px;
  line-height: 1.85;
  color: var(--muted);
}

.origin-graphic {
  position: absolute;
  right: -90px;
  bottom: -110px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(92, 231, 255, 0.16);
  border-radius: 50%;
  pointer-events: none;
}

.origin-graphic span {
  position: absolute;
  border: 1px solid rgba(92, 231, 255, 0.1);
  border-radius: 50%;
}

.origin-graphic span:nth-child(1) {
  inset: 54px;
}

.origin-graphic span:nth-child(2) {
  inset: 112px;
}

.origin-graphic span:nth-child(3) {
  inset: 168px;
}

.origin-graphic i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  margin: -3px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}

.cap-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.cap-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-height: 242px;
  padding: 28px;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}

.cap-card:hover {
  border-color: var(--line-strong);
  transform: translateY(-3px);
}

.cap-card .mono-label {
  color: var(--cyan);
}

.cap-card h3 {
  font-size: 21px;
  line-height: 1.35;
}

.cap-card p {
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--muted);
}

.cap-card .card-link {
  margin-top: auto;
  padding-top: 18px;
}

.credentials {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: clamp(28px, 4vw, 44px);
}

.credentials h2 {
  max-width: 700px;
  margin: 14px 0 12px;
  font-size: clamp(24px, 2.6vw, 34px);
  line-height: 1.3;
}

.credentials p:not(.eyebrow) {
  max-width: 700px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.85;
}

.credentials .btn {
  flex: none;
}

/* ---------- Materials / quality additions ---------- */
.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.guide-card {
  min-height: 216px;
  padding: 28px;
}

.guide-num {
  display: inline-block;
  margin-bottom: 26px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

.guide-card h3 {
  font-size: 20px;
  line-height: 1.35;
}

.guide-card p {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--muted);
}

.material-note {
  margin-top: 16px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
  font-size: 9.5px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- Products hub ---------- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.category-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(12, 24, 40, 0.82), rgba(5, 10, 18, 0.9));
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease),
    box-shadow 0.35s var(--ease);
}

.category-card:hover {
  transform: translateY(-4px);
  border-color: rgba(129, 199, 255, 0.34);
  box-shadow: 0 30px 80px -50px rgba(40, 150, 255, 0.65);
}

.category-media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #dfe7ef;
}

.category-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.category-card:hover .category-media img {
  transform: scale(1.04);
}

.category-index {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 7px;
  border: 1px solid rgba(4, 10, 18, 0.15);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.76);
  color: #14273c;
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.category-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 12px;
  padding: 24px;
}

.category-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
}

.category-body h2 {
  font-size: clamp(22px, 2.2vw, 28px);
  line-height: 1.25;
}

.category-body p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.85;
}

.category-body .catalog-card-link {
  margin-top: auto;
  padding-top: 12px;
}

.materials-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: clamp(28px, 4vw, 40px);
}

.materials-strip h2 {
  margin: 12px 0 10px;
  font-size: clamp(24px, 2.8vw, 36px);
  line-height: 1.3;
}

.materials-strip p:not(.eyebrow) {
  max-width: 680px;
  font-size: 12.5px;
  line-height: 1.85;
  color: var(--muted);
}

.materials-strip .btn {
  flex: none;
}

/* ---------- Catalog ---------- */
.catalog-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 22px;
  margin-bottom: 32px;
}

.catalog-intro {
  max-width: 620px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.85;
}

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

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 11, 20, 0.4);
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease),
    background 0.2s var(--ease);
}

.filter-btn span {
  font-size: 7px;
  color: var(--dim);
}

.filter-btn:hover {
  border-color: var(--line-strong);
  color: var(--text);
}

.filter-btn.is-active {
  border-color: rgba(92, 231, 255, 0.5);
  background: rgba(92, 231, 255, 0.08);
  color: var(--cyan);
}

.filter-btn.is-active span {
  color: var(--cyan);
  opacity: 0.7;
}

.catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(245px, 1fr));
  gap: 20px;
}

.catalog-card {
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(160deg, rgba(12, 24, 40, 0.78), rgba(5, 10, 18, 0.86));
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}

.catalog-card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
  box-shadow: 0 24px 60px -44px rgba(40, 150, 255, 0.6);
}

.catalog-media {
  position: relative;
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: linear-gradient(160deg, #e4ebf2, #ccd7e2);
}

.catalog-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.55s var(--ease);
}

.catalog-card:hover .catalog-media img {
  transform: scale(1.035);
}

.catalog-ref {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 4px 6px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.76);
  color: #14273c;
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.08em;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.catalog-body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 8px;
  padding: 17px;
}

.catalog-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.08em;
  color: var(--dim);
  text-transform: uppercase;
}

.catalog-body h3 {
  min-height: 2.7em;
  font-size: 16.5px;
  line-height: 1.35;
  letter-spacing: -0.01em;
}

.catalog-card-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: auto;
  font-size: 11px;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

.catalog-card:hover .catalog-card-link {
  color: var(--cyan);
}

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

.related-head {
  margin: 64px 0 20px;
}

/* ---------- Product detail ---------- */
.detail-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
  gap: clamp(28px, 4vw, 52px);
  align-items: start;
}

.detail-gallery {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.gallery-main,
.gallery-thumbs img {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: linear-gradient(160deg, #e7edf3, #d2dce6);
  object-fit: contain;
}

.gallery-main {
  aspect-ratio: 4 / 3;
  padding: 16px;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.gallery-thumbs img {
  aspect-ratio: 1 / 1;
  padding: 10px;
}

.detail-side {
  position: sticky;
  top: 108px;
}

.detail-panel {
  padding: 28px;
}

.detail-desc {
  margin: 18px 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.9;
}

.detail-facts {
  margin: 18px 0;
  border-top: 1px solid var(--line);
}

.detail-facts div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
}

.detail-facts dt {
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
}

.detail-facts dd {
  color: var(--text);
  text-align: right;
}

.detail-tags {
  margin: 18px 0;
}

.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.detail-actions .btn {
  height: 44px;
  font-size: 12px;
}

.detail-note {
  margin-top: 16px;
  font-size: 9.5px;
  line-height: 1.7;
  color: var(--dim);
}

/* ---------- News ---------- */
.news-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.news-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 236px;
  padding: 26px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(155deg, rgba(12, 23, 38, 0.78), rgba(5, 10, 18, 0.86));
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease),
    background 0.3s var(--ease);
}

.news-card:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  background: linear-gradient(155deg, rgba(14, 29, 49, 0.86), rgba(6, 12, 21, 0.92));
}

.news-card--featured {
  grid-column: 1 / -1;
  min-height: 270px;
  padding: clamp(28px, 4vw, 44px);
  background:
    radial-gradient(70% 120% at 100% 0%, rgba(92, 231, 255, 0.09), transparent 60%),
    linear-gradient(135deg, rgba(12, 27, 46, 0.92), rgba(5, 10, 18, 0.92));
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-family: var(--mono);
  font-size: 7.5px;
  letter-spacing: 0.12em;
  color: var(--dim);
  text-transform: uppercase;
}

.news-cat {
  color: var(--cyan);
}

.news-card h3 {
  max-width: 900px;
  font-size: 20px;
  line-height: 1.42;
  letter-spacing: -0.015em;
}

.news-card--featured h3 {
  max-width: 900px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.28;
}

.news-card p {
  max-width: 780px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.85;
}

.news-card .catalog-card-link {
  padding-top: 12px;
}

.archive-banner {
  margin-top: 30px;
  padding: 15px 18px;
  border: 1px dashed var(--line-strong);
  border-radius: 10px;
  background: rgba(92, 231, 255, 0.025);
  color: var(--dim);
  font-size: 10px;
  line-height: 1.8;
}

/* ---------- Article ---------- */
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: clamp(34px, 6vw, 70px);
  align-items: start;
}

.article-body {
  max-width: 780px;
  color: var(--muted);
  font-size: 14.5px;
  line-height: 2;
}

.article-body p {
  margin-bottom: 17px;
}

.article-body .article-lede {
  margin-bottom: 24px;
  color: var(--text);
  font-size: 18px;
  line-height: 1.9;
}

.article-body .archive-banner {
  margin: 0 0 26px;
}

.article-full-link {
  margin-top: 24px;
  font-size: 12.5px;
}

.article-full-link a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(92, 231, 255, 0.35);
}

.article-side {
  position: sticky;
  top: 108px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.article-side-box,
.article-side-cta {
  padding: 22px;
}

.article-side-box .mono-label,
.article-side-cta .mono-label {
  color: var(--cyan);
}

.related-news {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11.5px;
  line-height: 1.6;
  transition: color 0.2s var(--ease);
}

.related-news span {
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.related-news:hover {
  color: var(--cyan);
}

.article-side-cta h3 {
  margin: 12px 0 16px;
  font-size: 18px;
  line-height: 1.35;
}

.back-row {
  margin-top: 42px;
}

/* ---------- Careers ---------- */
.apply-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.apply-card {
  padding: 26px;
}

.apply-card h3 {
  margin: 14px 0 10px;
  font-size: 20px;
}

.apply-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text);
}

.apply-card a {
  transition: color 0.2s var(--ease);
}

.apply-card a:hover {
  color: var(--cyan);
}

.apply-note {
  display: block;
  margin-top: 14px;
  font-size: 10px;
  color: var(--dim);
}

.job-card {
  padding: clamp(28px, 4vw, 46px);
}

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

.job-head h2 {
  font-size: clamp(28px, 3vw, 38px);
}

.job-head .chips {
  margin-top: 0;
  justify-content: flex-end;
}

.job-columns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 56px);
  padding-top: 28px;
}

.job-columns h3 {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

.job-list {
  margin-top: 16px;
  counter-reset: job;
}

.job-list li {
  position: relative;
  margin-bottom: 11px;
  padding-left: 28px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
  counter-increment: job;
}

.job-list li::before {
  content: counter(job, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 2px;
  font-family: var(--mono);
  font-size: 8px;
  color: var(--cyan);
}

.job-foot {
  margin-top: 26px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 10.5px;
}

/* ---------- Contact page ---------- */
.contact-page-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 20px;
}

.contact-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 152px;
  padding: 24px;
}

.contact-card .mono-label {
  color: var(--dim);
}

.contact-value {
  margin-top: auto;
  color: var(--text);
  font-size: 15px;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

a.contact-value {
  transition: color 0.2s var(--ease);
}

a.contact-value:hover {
  color: var(--cyan);
}

.contact-card p {
  font-size: 10px;
  color: var(--dim);
}

.contact-hours {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px;
}

.contact-hours h2 {
  font-size: 26px;
  line-height: 1.3;
}

.contact-hours > p {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.8;
}

.contact-address {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.sales-contacts {
  padding-top: 8px;
  border-top: 1px solid var(--line);
}

.sales-contacts li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 0;
  color: var(--muted);
  font-size: 11.5px;
}

.sales-contacts a {
  color: var(--muted);
  transition: color 0.2s var(--ease);
}

.sales-contacts a:hover {
  color: var(--cyan);
}

.contact-hours .btn {
  margin-top: auto;
  align-self: flex-start;
}

.contact-lower {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 20px;
}

.inquiry-panel {
  padding: clamp(26px, 3.4vw, 38px);
}

.inquiry-panel h2 {
  max-width: 600px;
  margin: 14px 0 18px;
  font-size: clamp(22px, 2.4vw, 30px);
  line-height: 1.35;
}

.inquiry-panel .inquiry-list {
  margin-top: 10px;
}

.inquiry-panel .inquiry-note {
  margin: 18px 0;
}

.location-panel {
  position: relative;
  min-height: 330px;
  padding: clamp(26px, 3.4vw, 38px);
  overflow: hidden;
}

.location-coords {
  margin: 24px 0 14px;
  font-family: var(--mono);
  font-size: clamp(32px, 3.4vw, 46px);
  line-height: 1.06;
  letter-spacing: -0.04em;
  color: var(--cyan-soft);
}

.location-address {
  max-width: 280px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.9;
}

.location-note {
  max-width: 280px;
  margin-top: 22px;
  color: var(--dim);
  font-size: 10px;
  line-height: 1.75;
}

.location-graphic {
  position: absolute;
  right: -100px;
  bottom: -120px;
  width: 320px;
  height: 320px;
  border: 1px solid rgba(92, 231, 255, 0.15);
  border-radius: 50%;
  pointer-events: none;
}

.location-graphic span {
  position: absolute;
  border: 1px solid rgba(92, 231, 255, 0.1);
  border-radius: 50%;
}

.location-graphic span:nth-child(1) {
  inset: 44px;
}

.location-graphic span:nth-child(2) {
  inset: 104px;
}

.location-graphic span:nth-child(3) {
  inset: 160px;
}

.location-graphic i {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 6px;
  height: 6px;
  margin: -3px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 18px var(--cyan);
}

/* ---------- CTA band ---------- */
.cta-band {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: clamp(28px, 4vw, 48px);
  overflow: hidden;
  border: 1px solid rgba(129, 199, 255, 0.24);
  border-radius: 24px;
  background:
    radial-gradient(70% 120% at 88% 0%, rgba(92, 231, 255, 0.08), transparent 60%),
    linear-gradient(120deg, rgba(12, 27, 46, 0.92), rgba(5, 10, 18, 0.95));
  isolation: isolate;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(92, 231, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(92, 231, 255, 0.04) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(ellipse 60% 90% at 92% 0%, #000, transparent 70%);
  mask-image: radial-gradient(ellipse 60% 90% at 92% 0%, #000, transparent 70%);
  pointer-events: none;
}

.cta-band-copy h2 {
  max-width: 760px;
  margin: 12px 0;
  font-size: clamp(26px, 3.2vw, 40px);
  line-height: 1.22;
}

.cta-band-copy p:not(.eyebrow) {
  max-width: 680px;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.85;
}

.cta-band-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  flex: none;
}

/* ---------- Responsive inner pages ---------- */
@media (max-width: 1024px) {
  .page-hero {
    padding-top: 128px;
  }

  .page-hero-main {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .page-lead {
    max-width: 680px;
  }

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

  .contact-page-grid,
  .contact-lower {
    grid-template-columns: 1fr;
  }

  .detail-side,
  .article-side {
    position: static;
  }

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

  .detail-gallery {
    max-width: 680px;
  }
}

@media (max-width: 900px) {
  .cap-grid,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .article-layout {
    grid-template-columns: 1fr;
  }

  .cta-band {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-band-actions .btn {
    flex: 1 1 200px;
  }

  .credentials {
    flex-direction: column;
    align-items: flex-start;
  }

  .materials-strip {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .page-hero {
    padding: 112px 0 48px;
  }

  .breadcrumb {
    margin-bottom: 24px;
  }

  .page-title {
    font-size: clamp(34px, 9vw, 48px);
  }

  html[lang="en"] .page-title {
    font-size: clamp(30px, 7.6vw, 44px);
  }

  .page-meta {
    margin-top: 24px;
  }

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

  .category-media {
    aspect-ratio: 16 / 10;
  }

  .catalog-grid,
  .catalog-grid--related {
    grid-template-columns: 1fr 1fr;
    gap: 14px;
  }

  .catalog-body {
    padding: 14px;
  }

  .catalog-body h3 {
    font-size: 14px;
  }

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

  .news-card--featured {
    grid-column: auto;
  }

  .apply-grid,
  .job-columns {
    grid-template-columns: 1fr;
  }

  .job-head {
    flex-direction: column;
  }

  .job-head .chips {
    justify-content: flex-start;
  }

  .contact-cards {
    grid-template-columns: 1fr;
  }

  .contact-card {
    min-height: 130px;
  }

  .detail-actions .btn {
    flex: 1 1 200px;
  }

  .article-body {
    font-size: 14px;
  }

  .article-body .article-lede {
    font-size: 16px;
  }

  .gallery-main {
    aspect-ratio: 1 / 1;
  }
}

@media (max-width: 480px) {
  .page-section {
    padding: 56px 0;
  }

  .news-card {
    padding: 22px;
    min-height: 0;
  }

  .news-card--featured {
    padding: 24px;
  }

  .cta-band {
    border-radius: 18px;
  }

  .cta-band-actions {
    width: 100%;
  }

  .cta-band-actions .btn {
    flex: 1 1 100%;
  }

  .page-meta li {
    font-size: 7px;
  }

  .page-meta li strong {
    font-size: 9px;
  }
}

/* ---------- Homepage cross-links & news preview ---------- */
.section-foot {
  display: flex;
  justify-content: flex-end;
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.section-link {
  margin-top: 22px;
}

.process-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
}

.home-news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.home-news-grid .news-card {
  min-height: 268px;
}

@media (max-width: 900px) {
  .home-news-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .section-foot {
    justify-content: flex-start;
  }

  .process-foot-links {
    gap: 14px;
  }
}

@media (max-width: 720px) {
  .filter-bar {
    flex-wrap: nowrap;
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    padding-bottom: 7px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .filter-bar::-webkit-scrollbar {
    display: none;
  }

  .filter-btn {
    flex: none;
  }
}


.article-archive {
  margin-top: 28px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.article-archive summary {
  padding: 16px 0;
  cursor: pointer;
  color: var(--cyan);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  list-style: none;
}

.article-archive summary::-webkit-details-marker {
  display: none;
}

.article-archive summary::after {
  content: " +";
  color: var(--dim);
}

.article-archive[open] summary::after {
  content: " −";
}

.article-archive p {
  color: var(--muted);
}

@media (max-width: 360px) {
  .catalog-grid,
  .catalog-grid--related {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   Light theme
   Activated by data-theme="light" on <html>. The dark instrument panels
   (hero visual + globe) deliberately stay dark for contrast.
   ========================================================================== */

html[data-theme="light"] {
  --bg: #f2f5f9;
  --bg-elev: #e9eff6;
  --panel: #ffffff;
  --panel-2: #f7fafc;
  --text: #0b1a2b;
  --muted: #52657a;
  --dim: #64748b;
  --cyan: #08768f;
  --cyan-soft: #075e73;
  --blue: #2563eb;
  --line: rgba(15, 49, 82, 0.13);
  --line-strong: rgba(15, 71, 116, 0.24);
  --grad: linear-gradient(100deg, #084f63 0%, #077a96 45%, #2f5bd0 100%);
}

html[data-theme="light"] body {
  background: var(--bg);
  color: var(--text);
}

html[data-theme="light"] body::after {
  opacity: 0.016;
}

html[data-theme="light"] ::selection {
  background: #0d3350;
  color: #ffffff;
}

html[data-theme="light"] .skip-link {
  background: #0d3350;
  color: #ffffff;
}

html[data-theme="light"] .site-header.is-scrolled,
html[data-theme="light"] body.menu-open .site-header {
  background: rgba(250, 252, 255, 0.88);
  border-bottom-color: var(--line);
}

html[data-theme="light"] .menu-toggle {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
}

html[data-theme="light"] .mobile-menu {
  background: rgba(246, 249, 253, 0.98);
}

html[data-theme="light"] .mobile-nav a {
  border-bottom-color: var(--line);
}

html[data-theme="light"] .mobile-nav a:hover {
  color: var(--cyan);
}

html[data-theme="light"] .lang-switch {
  background: rgba(255, 255, 255, 0.66);
  border-color: var(--line);
}

html[data-theme="light"] .lang-switch .lang-current {
  background: rgba(8, 118, 143, 0.1);
  color: var(--cyan);
}

html[data-theme="light"] .theme-toggle {
  background: rgba(255, 255, 255, 0.66);
}

html[data-theme="light"] .btn-primary {
  background: linear-gradient(180deg, #0d3350 0%, #082a44 100%);
  color: #f4fbff;
  box-shadow: 0 0 0 1px rgba(8, 42, 68, 0.24),
    0 14px 32px -16px rgba(8, 42, 68, 0.5);
}

html[data-theme="light"] .btn-primary:hover {
  box-shadow: 0 0 0 1px rgba(8, 42, 68, 0.32),
    0 20px 44px -16px rgba(8, 42, 68, 0.58);
}

html[data-theme="light"] .btn-ghost {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line-strong);
  color: var(--text);
}

html[data-theme="light"] .btn-ghost:hover {
  border-color: var(--cyan);
  background: rgba(8, 118, 143, 0.06);
}

/* Hero */
html[data-theme="light"] .hero::before {
  background:
    radial-gradient(64% 54% at 72% 38%, rgba(39, 118, 194, 0.13), transparent 68%),
    radial-gradient(42% 40% at 12% 12%, rgba(70, 130, 190, 0.09), transparent 70%),
    linear-gradient(180deg, #f8fbfe 0%, #f2f6fa 70%, rgba(242, 246, 250, 0.7) 100%);
}

html[data-theme="light"] .hero-grid {
  background-image:
    linear-gradient(rgba(20, 80, 140, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 80, 140, 0.08) 1px, transparent 1px);
}

html[data-theme="light"] .hero-aurora {
  background: radial-gradient(circle, rgba(60, 140, 220, 0.13) 0%, transparent 62%);
}

html[data-theme="light"] .hero-ring {
  border-color: rgba(20, 80, 140, 0.1);
}

html[data-theme="light"] .hero-ring::before {
  border-color: rgba(20, 80, 140, 0.08);
}

html[data-theme="light"] .hero-ticker {
  background: rgba(255, 255, 255, 0.62);
  border-color: var(--line);
}

html[data-theme="light"] .ticker-item {
  color: var(--dim);
}

html[data-theme="light"] .ticker-item::after {
  border-color: var(--cyan);
}

/* Keep the technical screen dark, but restore its internal light labels. */
html[data-theme="light"] .visual-frame {
  border-color: rgba(45, 120, 165, 0.28);
  box-shadow: 0 46px 120px -52px rgba(20, 80, 140, 0.48),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

html[data-theme="light"] .frame-top,
html[data-theme="light"] .frame-bottom,
html[data-theme="light"] .spec-k {
  color: #8aa0b5;
}

html[data-theme="light"] .frame-status,
html[data-theme="light"] .spec-v {
  color: #5ce7ff;
}

html[data-theme="light"] .spec-tag {
  background: rgba(4, 10, 18, 0.78);
  border-color: rgba(129, 181, 230, 0.2);
}

/* Panels and cards */
html[data-theme="light"] .panel,
html[data-theme="light"] .category-card,
html[data-theme="light"] .catalog-card,
html[data-theme="light"] .news-card,
html[data-theme="light"] .product-card,
html[data-theme="light"] .material {
  background: linear-gradient(160deg, #ffffff, #f6f9fc);
  border-color: var(--line);
}

html[data-theme="light"] .panel::after {
  background: radial-gradient(70% 60% at 100% 0%, rgba(8, 118, 143, 0.035), transparent 60%);
}

html[data-theme="light"] .metric:hover,
html[data-theme="light"] .cap-card:hover,
html[data-theme="light"] .material:hover,
html[data-theme="light"] .product-card:hover,
html[data-theme="light"] .category-card:hover,
html[data-theme="light"] .catalog-card:hover,
html[data-theme="light"] .news-card:hover {
  border-color: var(--line-strong);
  background: #ffffff;
}

html[data-theme="light"] .product-card:hover,
html[data-theme="light"] .category-card:hover,
html[data-theme="light"] .catalog-card:hover {
  box-shadow: 0 28px 70px -48px rgba(20, 70, 120, 0.4);
}

html[data-theme="light"] .chips li {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
  color: var(--muted);
}

html[data-theme="light"] .product-card:hover .chips li {
  border-color: var(--line-strong);
}

html[data-theme="light"] .product-art {
  opacity: 0.12;
}

html[data-theme="light"] .product-card:hover .product-art {
  opacity: 0.2;
}

html[data-theme="light"] .material-code {
  -webkit-text-stroke-color: rgba(15, 60, 100, 0.14);
}

html[data-theme="light"] .material:hover .material-code {
  -webkit-text-stroke-color: rgba(8, 118, 143, 0.24);
}

html[data-theme="light"] .material::before {
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
}

html[data-theme="light"] .motto {
  background: linear-gradient(100deg, rgba(8, 118, 143, 0.06), rgba(47, 91, 208, 0.03) 44%, #ffffff 80%);
  border-color: var(--line);
}

html[data-theme="light"] .about::before,
html[data-theme="light"] .products::before,
html[data-theme="light"] .materials::before,
html[data-theme="light"] .global::before {
  background: radial-gradient(circle, rgba(40, 120, 200, 0.09), transparent 66%);
}

html[data-theme="light"] .process {
  border-color: var(--line);
  background: linear-gradient(180deg, rgba(230, 238, 247, 0.72), rgba(242, 246, 250, 0.4));
}

html[data-theme="light"] .value {
  background: rgba(255, 255, 255, 0.6);
}

html[data-theme="light"] .value:hover {
  background: rgba(8, 118, 143, 0.05);
}

/* The globe stays a dark data display. */
html[data-theme="light"] .globe-panel {
  border-color: rgba(20, 70, 110, 0.22);
}

html[data-theme="light"] .globe-hud,
html[data-theme="light"] .globe-legend {
  color: #8aa0b5;
}

html[data-theme="light"] .globe-legend {
  border-top-color: rgba(129, 181, 230, 0.2);
}

html[data-theme="light"] .marker.is-on text {
  fill: #5ce7ff;
}

html[data-theme="light"] .origin-graphic,
html[data-theme="light"] .location-graphic {
  border-color: rgba(8, 118, 143, 0.18);
}

html[data-theme="light"] .origin-graphic span,
html[data-theme="light"] .location-graphic span {
  border-color: rgba(8, 118, 143, 0.12);
}

/* Contact */
html[data-theme="light"] .contact-panel {
  border-color: rgba(15, 90, 120, 0.22);
  background:
    linear-gradient(142deg, #ffffff, #f5f9fc),
    var(--panel);
}

html[data-theme="light"] .contact-panel::before {
  background-image:
    linear-gradient(rgba(8, 118, 143, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 118, 143, 0.055) 1px, transparent 1px);
}

html[data-theme="light"] .contact-glow {
  background: radial-gradient(circle, rgba(44, 151, 255, 0.12), transparent 65%);
}

html[data-theme="light"] .inquiry {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
}

html[data-theme="light"] .inquiry-head,
html[data-theme="light"] .inquiry-link {
  border-color: var(--line);
}

html[data-theme="light"] .inquiry-list li {
  border-bottom-color: var(--line);
}

html[data-theme="light"] .inquiry-note {
  color: var(--dim);
}

/* Footer */
html[data-theme="light"] .site-footer {
  border-top-color: var(--line);
  background: linear-gradient(180deg, rgba(232, 240, 247, 0.6), #f2f6fa);
}

html[data-theme="light"] .footer-wordmark {
  -webkit-text-stroke-color: rgba(15, 60, 100, 0.16);
}

html[data-theme="light"] .footer-bottom {
  border-top-color: var(--line);
}

html[data-theme="light"] .to-top {
  background: rgba(255, 255, 255, 0.88);
  border-color: var(--line-strong);
  color: var(--muted);
}

html[data-theme="light"] .to-top:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

/* Inner page chrome */
html[data-theme="light"] .page-hero::before {
  background:
    radial-gradient(52% 60% at 78% 30%, rgba(40, 120, 200, 0.12), transparent 68%),
    linear-gradient(180deg, #f8fbfe 0%, rgba(242, 246, 250, 0.96) 74%, rgba(242, 246, 250, 0.72) 100%);
}

html[data-theme="light"] .page-hero-bg {
  background-image:
    linear-gradient(rgba(20, 80, 140, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 80, 140, 0.07) 1px, transparent 1px);
}

html[data-theme="light"] .page-hero::after {
  border-color: rgba(20, 80, 140, 0.09);
}

html[data-theme="light"] .page-section--soft {
  border-color: var(--line);
  background: linear-gradient(180deg, rgba(230, 238, 247, 0.55), rgba(242, 246, 250, 0.2));
}

html[data-theme="light"] .filter-btn {
  background: rgba(255, 255, 255, 0.7);
  border-color: var(--line);
  color: var(--muted);
}

html[data-theme="light"] .filter-btn.is-active {
  background: rgba(8, 118, 143, 0.08);
  border-color: rgba(8, 118, 143, 0.45);
  color: var(--cyan);
}

html[data-theme="light"] .archive-banner {
  background: rgba(8, 118, 143, 0.035);
  border-color: var(--line-strong);
  color: var(--dim);
}

html[data-theme="light"] .article-archive,
html[data-theme="light"] .article-side-box,
html[data-theme="light"] .article-side-cta {
  border-color: var(--line);
}

html[data-theme="light"] .article-full-link a {
  border-bottom-color: rgba(8, 118, 143, 0.35);
}

html[data-theme="light"] .cta-band {
  border-color: rgba(15, 90, 120, 0.2);
  background:
    radial-gradient(70% 120% at 88% 0%, rgba(8, 118, 143, 0.07), transparent 60%),
    linear-gradient(120deg, #ffffff, #f4f8fb);
}

html[data-theme="light"] .cta-band::before {
  background-image:
    linear-gradient(rgba(8, 118, 143, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 118, 143, 0.045) 1px, transparent 1px);
}

html[data-theme="light"] .category-media,
html[data-theme="light"] .catalog-media,
html[data-theme="light"] .gallery-main,
html[data-theme="light"] .gallery-thumbs img {
  border-color: var(--line);
}

html[data-theme="light"] .catalog-ref,
html[data-theme="light"] .category-index {
  background: rgba(255, 255, 255, 0.8);
  color: #14273c;
}

html[data-theme="light"] .detail-facts,
html[data-theme="light"] .detail-facts div {
  border-color: var(--line);
}

html[data-theme="light"] .contact-address,
html[data-theme="light"] .sales-contacts {
  border-color: var(--line);
}

html[data-theme="light"] .news-card--featured {
  background:
    radial-gradient(70% 120% at 100% 0%, rgba(8, 118, 143, 0.08), transparent 60%),
    linear-gradient(135deg, #ffffff, #f3f8fb);
}

html[data-theme="light"] .news-card:hover {
  background: #ffffff;
}

html[data-theme="light"] .news-cat {
  color: var(--cyan);
}

html[data-theme="light"] .news-card .catalog-card-link,
html[data-theme="light"] .catalog-card-link {
  color: var(--muted);
}

html[data-theme="light"] .news-card:hover .catalog-card-link,
html[data-theme="light"] .catalog-card:hover .catalog-card-link {
  color: var(--cyan);
}

html[data-theme="light"] .materials-strip,
html[data-theme="light"] .credentials {
  background: linear-gradient(160deg, #ffffff, #f5f9fc);
}

html[data-theme="light"] .section-foot {
  border-color: var(--line);
}

html[data-theme="light"] .footer-brand p,
html[data-theme="light"] .footer-col h3,
html[data-theme="light"] .footer-col a,
html[data-theme="light"] .footer-contact address,
html[data-theme="light"] .footer-bottom {
  color: var(--dim);
}

html[data-theme="light"] .footer-col a:hover {
  color: var(--cyan);
}

/* Light theme: extra surface definition */
html[data-theme="light"] .panel,
html[data-theme="light"] .category-card,
html[data-theme="light"] .catalog-card,
html[data-theme="light"] .news-card,
html[data-theme="light"] .product-card,
html[data-theme="light"] .material {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 18px 44px -40px rgba(20, 70, 120, 0.32);
}

html[data-theme="light"] .metric:hover,
html[data-theme="light"] .cap-card:hover,
html[data-theme="light"] .material:hover,
html[data-theme="light"] .product-card:hover,
html[data-theme="light"] .category-card:hover,
html[data-theme="light"] .catalog-card:hover,
html[data-theme="light"] .news-card:hover {
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 26px 60px -42px rgba(20, 70, 120, 0.42);
}

html[data-theme="light"] .contact-panel,
html[data-theme="light"] .cta-band {
  box-shadow: 0 30px 80px -64px rgba(20, 70, 120, 0.45);
}

html[data-theme="light"] .globe-panel {
  border-color: rgba(20, 70, 110, 0.3);
  box-shadow: 0 24px 60px -44px rgba(10, 40, 70, 0.5);
}

html[data-theme="light"] .footer-wordmark {
  -webkit-text-stroke-color: rgba(15, 60, 100, 0.2);
}

html[data-theme="light"] .origin-graphic,
html[data-theme="light"] .location-graphic {
  border-color: rgba(8, 118, 143, 0.22);
}

html[data-theme="light"] .origin-graphic span,
html[data-theme="light"] .location-graphic span {
  border-color: rgba(8, 118, 143, 0.14);
}

html[data-theme="light"] .globe-panel {
  background: radial-gradient(62% 62% at 50% 45%, #0d2238, #050b13 78%);
}

html[data-theme="light"] .frame-status i {
  background: #5ce7ff;
  box-shadow: 0 0 8px rgba(92, 231, 255, 0.9);
}