:root {
  color-scheme: light;
  --ink: #0a0d14;
  --surface: #eceeea;
  --surface-2: #e2e5df;
  --line: #d5d8d2;
  --muted: #626b78;
  --paper: #f7f7f2;
  --white: #ffffff;
  --blue: #0b4dff;
  --blue-deep: #0737c8;
  --blue-soft: #2f60e8;
  --blue-on-dark: #7797ff;
  --cyan: #00bfe8;
  --pink: #ff2d95;
  --display: "Bricolage Grotesque", "Avenir Next", sans-serif;
  --body: "IBM Plex Sans", "Noto Sans", sans-serif;
  --mono: "IBM Plex Mono", "SFMono-Regular", monospace;
  --zh-hant: "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  --zh-hans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--paper);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  letter-spacing: 0;
}

html[lang="zh-Hant"] body {
  font-family: var(--zh-hant);
  font-variant-east-asian: proportional-width;
}

html[lang="zh-Hans"] body {
  font-family: var(--zh-hans);
  font-variant-east-asian: proportional-width;
}

html[lang="ja"] body {
  font-family: "Noto Sans JP", "Yu Gothic", var(--body);
}

html[lang="th"] body {
  font-family: "Noto Sans Thai", "Thonburi", var(--body);
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-160%);
}

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

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

.site-header {
  position: absolute;
  z-index: 20;
  top: 0;
  left: 0;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  min-height: 76px;
  padding: 0 3.5%;
  border-bottom: 1px solid rgba(10, 13, 20, 0.14);
  background: linear-gradient(90deg, rgba(247, 247, 242, 0.94), rgba(247, 247, 242, 0.72));
  backdrop-filter: blur(18px) saturate(140%);
}

.brand {
  display: inline-flex;
  align-items: center;
  width: max-content;
  text-decoration: none;
}

.brand-mark {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 34px;
  margin-right: 12px;
  transform: rotate(-12deg);
}

.brand-mark::after {
  content: "";
  position: absolute;
  right: -2px;
  bottom: 3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pink);
  box-shadow: 0 0 0 2px var(--paper);
}

.brand-mark__shell,
.brand-mark__core {
  position: absolute;
  display: block;
}

.brand-mark__shell {
  inset: 2px;
  border: 2px solid var(--ink);
  clip-path: polygon(50% 0, 94% 25%, 82% 82%, 50% 100%, 7% 72%, 18% 18%);
}

.brand-mark__core {
  inset: 10px 8px 8px 10px;
  background: var(--blue);
  filter: drop-shadow(0 0 7px rgba(11, 77, 255, 0.44));
  clip-path: polygon(50% 0, 100% 42%, 70% 100%, 0 72%, 13% 18%);
}

.brand-wordmark {
  display: block;
  width: 126px;
  height: auto;
  color: var(--ink);
}

.brand-local {
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid rgba(10, 13, 20, 0.24);
  color: rgba(10, 13, 20, 0.66);
  font: 700 0.82rem var(--zh-hant);
  letter-spacing: 0.08em;
}

.brand-local:empty {
  display: none;
}

.primary-nav {
  display: flex;
  gap: 32px;
}

.primary-nav a {
  color: rgba(10, 13, 20, 0.64);
  font-size: 0.78rem;
  text-decoration: none;
  transition: color 180ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible {
  color: var(--ink);
}

.locale-control {
  display: flex;
  justify-self: end;
  align-items: center;
  gap: 12px;
}

.locale-control__index {
  color: var(--blue-soft);
  font-family: var(--mono);
  font-size: 0.66rem;
}

.locale-control select {
  max-width: 172px;
  padding: 8px 24px 8px 8px;
  border: 0;
  border-bottom: 1px solid rgba(10, 13, 20, 0.28);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font: 500 0.72rem var(--mono);
  cursor: pointer;
}

.locale-control select:focus-visible,
.button:focus-visible,
.brand:focus-visible,
.primary-nav a:focus-visible {
  outline: 2px solid var(--blue-soft);
  outline-offset: 4px;
}

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 82svh;
  overflow: hidden;
  isolation: isolate;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(circle at 78% 42%, rgba(0, 191, 232, 0.09), transparent 24%),
    radial-gradient(circle at 68% 30%, rgba(11, 77, 255, 0.1), transparent 34%),
    var(--paper);
}

.hero-scene,
.hero-grid {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero-scene {
  z-index: -3;
}

.hero-grid {
  z-index: -2;
  opacity: 0.62;
  background-image:
    linear-gradient(rgba(11, 77, 255, 0.075) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11, 77, 255, 0.075) 1px, transparent 1px),
    linear-gradient(135deg, transparent 49.7%, rgba(0, 191, 232, 0.1) 50%, transparent 50.3%);
  background-position: 61.8% 0, 61.8% 0, 0 0;
  background-size: 56px 56px, 56px 56px, 240px 240px;
  -webkit-mask-image: linear-gradient(90deg, transparent 28%, #000 52%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 28%, #000 52%, #000 100%);
}

.hero::after {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 0;
  background: linear-gradient(90deg, rgba(247, 247, 242, 0.98) 0%, rgba(247, 247, 242, 0.91) 36%, rgba(247, 247, 242, 0.5) 52%, rgba(247, 247, 242, 0.04) 72%);
  pointer-events: none;
}

.hero-scan {
  position: absolute;
  z-index: 0;
  top: 76px;
  bottom: 0;
  left: 57%;
  width: 18%;
  opacity: 0.42;
  background: linear-gradient(90deg, transparent, rgba(0, 191, 232, 0.18), rgba(11, 77, 255, 0.06), transparent);
  filter: blur(0.3px);
  transform: skewX(-12deg) translateX(-140%);
  animation: telemetry-sweep 6.8s cubic-bezier(.45, 0, .55, 1) infinite;
  pointer-events: none;
}

.hero-telemetry {
  position: absolute;
  z-index: 2;
  top: 104px;
  right: 5.5%;
  display: grid;
  gap: 7px;
  width: 176px;
  padding: 12px 0 12px 16px;
  border-left: 1px solid rgba(11, 77, 255, 0.52);
  color: rgba(10, 13, 20, 0.48);
  font: 500 0.56rem/1.15 var(--mono);
  letter-spacing: 0.08em;
}

.hero-telemetry::before,
.hero-telemetry::after {
  content: "";
  position: absolute;
  left: -3px;
  width: 5px;
  height: 5px;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 191, 232, 0.72);
}

.hero-telemetry::before { top: 0; }
.hero-telemetry::after { bottom: 0; }

.hero-telemetry b {
  color: var(--blue);
  font-weight: 500;
}

.hero-axis {
  position: absolute;
  z-index: 1;
  top: 76px;
  bottom: 0;
  left: 61.8%;
  width: 1px;
  background: linear-gradient(180deg, rgba(0, 191, 232, 0.08), rgba(11, 77, 255, 0.6), rgba(0, 191, 232, 0.12));
  box-shadow: 0 0 18px rgba(11, 77, 255, 0.18);
}

.hero-axis span {
  position: absolute;
  top: 18px;
  left: 8px;
  color: var(--blue-soft);
  font: 0.62rem var(--mono);
  writing-mode: vertical-rl;
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: min(650px, 47%);
  margin-left: 8.2%;
  padding-top: 72px;
}

.hero-copy::before {
  content: "";
  position: absolute;
  top: 138px;
  bottom: 26px;
  left: -24px;
  width: 1px;
  background: linear-gradient(180deg, var(--cyan), rgba(11, 77, 255, 0.1) 72%, transparent);
  box-shadow: 0 0 12px rgba(0, 191, 232, 0.3);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 22px;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.68rem;
  text-transform: uppercase;
}

.eyebrow__line {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  box-shadow: 0 0 12px rgba(0, 191, 232, 0.5);
  transform-origin: left center;
  animation: signal-pulse 2.8s ease-in-out infinite;
}

h1,
h2,
p {
  letter-spacing: 0;
}

h1 {
  max-width: 720px;
  margin: 0;
  font-family: var(--display);
  font-size: 5rem;
  font-weight: 650;
  line-height: 0.92;
}

.hero-title__brand,
.hero-title__product {
  display: inline-block;
  text-shadow: 0 12px 38px rgba(11, 77, 255, 0.07);
}

.hero-title__brand {
  font-family: var(--display);
}

html[lang="zh-Hant"] .hero-title__product {
  font-family: var(--zh-hant);
  font-weight: 900;
  letter-spacing: -0.055em;
}

html[lang="zh-Hant"] .precision-strip h2,
html[lang="zh-Hant"] .engineering-band h2,
html[lang="zh-Hant"] .fitment-band h2,
html[lang="zh-Hant"] .evidence-rail strong {
  font-family: var(--zh-hant);
  font-weight: 900;
  letter-spacing: -0.035em;
}

html[lang="zh-Hans"] .hero-title__product {
  font-family: var(--zh-hans);
  font-weight: 900;
  letter-spacing: -0.055em;
}

html[lang="zh-Hans"] .precision-strip h2,
html[lang="zh-Hans"] .engineering-band h2,
html[lang="zh-Hans"] .fitment-band h2,
html[lang="zh-Hans"] .evidence-rail strong {
  font-family: var(--zh-hans);
  font-weight: 900;
  letter-spacing: -0.035em;
}

html[lang="zh-Hant"] .eyebrow,
html[lang="zh-Hant"] .hero-spec__label,
html[lang="zh-Hant"] .precision-strip__proof,
html[lang="zh-Hant"] .evidence-rail__status {
  font-family: var(--zh-hant);
}

html[lang="zh-Hans"] .eyebrow,
html[lang="zh-Hans"] .hero-spec__label,
html[lang="zh-Hans"] .precision-strip__proof,
html[lang="zh-Hans"] .evidence-rail__status {
  font-family: var(--zh-hans);
}

.hero-copy__body {
  max-width: 520px;
  margin: 28px 0 0 18%;
  color: rgba(10, 13, 20, 0.68);
  font-size: 1rem;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin: 30px 0 0 18%;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  min-height: 48px;
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 600;
  text-decoration: none;
  transition: transform 180ms ease, color 180ms ease, background 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button--primary {
  position: relative;
  min-width: 196px;
  padding: 0 18px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: linear-gradient(112deg, var(--blue-deep), var(--blue) 58%, #087dff);
  color: var(--white);
  box-shadow: 0 12px 30px rgba(11, 77, 255, 0.22), inset 0 1px rgba(255, 255, 255, 0.18);
  clip-path: polygon(0 0, calc(100% - 12px) 0, 100% 12px, 100% 100%, 0 100%);
}

.button--primary:hover {
  background: linear-gradient(112deg, #052bab, var(--blue-deep) 52%, var(--blue));
  box-shadow: 0 16px 34px rgba(11, 77, 255, 0.3), inset 0 1px rgba(255, 255, 255, 0.2);
}

.button--primary > span:last-child {
  color: var(--pink);
  font-size: 1rem;
}

.button--text {
  min-height: 36px;
  border-bottom: 1px solid var(--ink);
}

.hero-spec {
  position: absolute;
  z-index: 2;
  right: 4.5%;
  bottom: 38px;
  display: flex;
  gap: 0;
  border: 1px solid rgba(11, 77, 255, 0.18);
  border-bottom-color: rgba(11, 77, 255, 0.46);
  background: rgba(247, 247, 242, 0.68);
  box-shadow: 0 14px 40px rgba(11, 77, 255, 0.08);
  backdrop-filter: blur(14px) saturate(125%);
}

.hero-spec__item {
  display: grid;
  gap: 5px;
  min-width: 150px;
  padding: 12px 18px 13px;
  border-top: 2px solid var(--blue);
}

.hero-spec__item + .hero-spec__item {
  border-left: 1px solid rgba(11, 77, 255, 0.16);
}

.hero-spec__value {
  font: 500 1.35rem var(--mono);
}

.hero-spec__value span {
  margin-left: 3px;
  color: var(--blue-soft);
  font-size: 0.72rem;
}

.hero-spec__value--word {
  letter-spacing: -0.04em;
}

.hero-spec__value--word span {
  letter-spacing: 0.04em;
}

.hero-spec__label {
  color: var(--muted);
  font-size: 0.68rem;
}

.hero-edition {
  position: absolute;
  right: 3.5%;
  top: 112px;
  margin: 0;
  color: rgba(10, 13, 20, 0.42);
  font: 0.62rem var(--mono);
  writing-mode: vertical-rl;
}

.precision-strip {
  position: relative;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 9%;
  min-height: 330px;
  padding: 64px 8.2%;
  overflow: hidden;
  background:
    repeating-linear-gradient(90deg, rgba(11, 77, 255, 0.035) 0 1px, transparent 1px 56px),
    var(--white);
  color: var(--ink);
}

.section-index {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 24px;
  color: var(--blue);
  font: 0.64rem var(--mono);
}

.section-index::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 191, 232, 0.6);
}

.precision-strip h2,
.engineering-band h2,
.fitment-band h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 2.5rem;
  font-weight: 650;
  line-height: 1.05;
}

.precision-strip__copy {
  max-width: 480px;
  margin: 0;
  color: #4d515a;
  font-size: 1rem;
  line-height: 1.7;
}

.precision-strip__detail {
  align-self: center;
}

.precision-strip__proof {
  max-width: 480px;
  margin: 24px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(5, 5, 6, 0.24);
  color: var(--blue);
  font: 500 0.64rem/1.5 var(--mono);
  letter-spacing: 0.04em;
  text-shadow: 0 0 18px rgba(11, 77, 255, 0.12);
}

.precision-strip__marker {
  position: absolute;
  right: 0;
  bottom: 0;
  display: flex;
  align-items: flex-end;
  gap: 5px;
}

.precision-strip__marker span {
  display: block;
  width: 9px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
  box-shadow: 0 0 10px rgba(11, 77, 255, 0.18);
}

.precision-strip__marker span:nth-child(1) { height: 26px; }
.precision-strip__marker span:nth-child(2) { height: 42px; }
.precision-strip__marker span:nth-child(3) { height: 68px; }
.precision-strip__marker span:nth-child(4) { height: 110px; }
.precision-strip__marker span:nth-child(5) { height: 178px; }

.engineering-band,
.fitment-band {
  display: grid;
  grid-template-columns: 0.35fr 1fr 0.7fr;
  gap: 7%;
  align-items: start;
  min-height: 420px;
  padding: 88px 8.2%;
  border-bottom: 1px solid var(--line);
}

.engineering-band {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 68% 18%, rgba(11, 77, 255, 0.16), transparent 28%),
    linear-gradient(rgba(119, 151, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(119, 151, 255, 0.055) 1px, transparent 1px),
    var(--ink);
  background-size: auto, 56px 56px, 56px 56px, auto;
  color: var(--paper);
}

.engineering-band::before {
  content: "";
  position: absolute;
  top: -20%;
  bottom: -20%;
  left: 61.8%;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--cyan), var(--blue-on-dark), transparent);
  box-shadow: 0 0 26px rgba(0, 191, 232, 0.42);
  animation: band-scan 5.6s ease-in-out infinite;
}

.engineering-band > * {
  position: relative;
  z-index: 1;
}

.engineering-band .section-index,
.engineering-band .evidence-rail__status {
  color: var(--blue-on-dark);
}

.engineering-band__copy {
  margin: 0;
  color: #adb4bf;
  line-height: 1.7;
}

.fitment-band > p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.engineering-band__copy > p {
  margin: 0;
}

.engineering-band__promise {
  margin-top: 24px !important;
  padding-top: 16px;
  border-top: 1px solid rgba(242, 241, 236, 0.18);
  color: var(--paper);
  font-size: 0.78rem;
  font-weight: 600;
}

.evidence-rail {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  margin: 64px 0 0;
  padding: 0;
  border-top: 1px solid rgba(242, 241, 236, 0.22);
  list-style: none;
}

.evidence-rail li {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  min-height: 170px;
  padding: 24px 28px 24px 0;
  border-right: 1px solid rgba(242, 241, 236, 0.16);
  background: linear-gradient(180deg, rgba(11, 77, 255, 0.04), transparent 42%);
}

.evidence-rail li::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--cyan);
  box-shadow: 0 0 14px rgba(0, 191, 232, 0.72);
}

.evidence-rail li + li {
  padding-left: 28px;
}

.evidence-rail li:last-child {
  border-right: 0;
}

.evidence-rail__number {
  grid-row: 1 / span 3;
  color: rgba(242, 241, 236, 0.34);
  font: 0.62rem var(--mono);
}

.evidence-rail__status {
  color: var(--blue-soft);
  font: 500 0.62rem var(--mono);
  letter-spacing: 0.05em;
}

.evidence-rail strong {
  display: block;
  color: var(--paper);
  font-family: var(--display);
  font-size: 1.12rem;
  font-weight: 650;
}

.evidence-rail li > span:last-child {
  max-width: 290px;
  color: #929aa7;
  font-size: 0.78rem;
  line-height: 1.55;
}

.fitment-band {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(132deg, rgba(11, 77, 255, 0.06), transparent 38%),
    repeating-linear-gradient(90deg, transparent 0 55px, rgba(10, 13, 20, 0.035) 55px 56px),
    var(--surface);
  color: var(--ink);
}

.fitment-band::after {
  content: "KLS / RESPONSE VECTOR";
  position: absolute;
  right: 6%;
  bottom: 28px;
  color: rgba(11, 77, 255, 0.38);
  font: 0.56rem var(--mono);
  letter-spacing: 0.12em;
}

.campaign-band {
  position: relative;
  display: grid;
  grid-template-columns: 0.35fr 1.35fr 0.45fr;
  gap: 7%;
  align-items: start;
  min-height: 480px;
  padding: 96px 8.2%;
  overflow: hidden;
  background:
    radial-gradient(circle at 76% 38%, rgba(114, 232, 255, 0.2), transparent 23%),
    linear-gradient(132deg, var(--blue-deep), var(--blue) 52%, #0639d7);
  color: var(--white);
}

.campaign-band::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.26) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.26) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 58%);
  mask-image: linear-gradient(90deg, transparent, #000 58%);
}

.campaign-band::after {
  content: "";
  position: absolute;
  right: -10vw;
  bottom: -34vw;
  width: 54vw;
  height: 54vw;
  border: 1px solid rgba(114, 232, 255, 0.52);
  border-radius: 50%;
  box-shadow: 0 0 0 7vw rgba(114, 232, 255, 0.035), 0 0 0 14vw rgba(114, 232, 255, 0.025);
}

.campaign-band > * {
  position: relative;
  z-index: 1;
}

.campaign-band .section-index {
  color: rgba(255, 255, 255, 0.76);
}

.campaign-band .section-index::before {
  background: var(--pink);
  box-shadow: 0 0 12px rgba(255, 45, 149, 0.72);
}

.campaign-band__message h2 {
  max-width: 820px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(3.5rem, 6vw, 6.2rem);
  font-weight: 650;
  line-height: 0.98;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

html[lang="zh-Hant"] .campaign-band__message h2 {
  font-family: var(--zh-hant);
  font-size: clamp(3.8rem, 5vw, 4.8rem);
  font-weight: 900;
  white-space: pre-line;
}

html[lang="zh-Hans"] .campaign-band__message h2 {
  font-family: var(--zh-hans);
  font-size: clamp(3.8rem, 5vw, 4.8rem);
  font-weight: 900;
  white-space: pre-line;
}

.campaign-band__message > p {
  max-width: 560px;
  margin: 32px 0 0;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, 0.44);
  color: rgba(255, 255, 255, 0.84);
  font-size: 1rem;
  line-height: 1.65;
}

.campaign-band__signature {
  align-self: end;
  display: grid;
  gap: 10px;
  justify-items: end;
  color: rgba(255, 255, 255, 0.68);
  font: 0.58rem var(--mono);
  letter-spacing: 0.1em;
}

.campaign-band__signature strong {
  color: var(--white);
  font: 500 2rem var(--mono);
  letter-spacing: -0.05em;
}

.site-footer {
  padding: 56px 8.2% 28px;
  background: #060911;
  color: var(--paper);
}

.footer-brand-row,
.footer-legal {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-brand-row {
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(242, 241, 236, 0.18);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.footer-brand:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 5px;
}

.footer-brand__name {
  font: 650 1.05rem var(--display);
  letter-spacing: 0.22em;
}

.footer-brand__local {
  padding-left: 14px;
  border-left: 1px solid rgba(242, 241, 236, 0.28);
  color: rgba(242, 241, 236, 0.62);
  font: 700 0.76rem var(--zh-hant);
  letter-spacing: 0.08em;
}

.footer-brand-row > p,
.footer-legal {
  color: rgba(242, 241, 236, 0.42);
  font: 0.56rem var(--mono);
  letter-spacing: 0.08em;
}

.channel-network {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: 8%;
  padding: 64px 0;
}

.channel-network__intro h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 2.6rem;
  font-weight: 650;
  line-height: 1;
}

html[lang="zh-Hant"] .channel-network__intro h2 {
  font-family: var(--zh-hant);
  font-weight: 900;
}

html[lang="zh-Hans"] .channel-network__intro h2 {
  font-family: var(--zh-hans);
  font-weight: 900;
}

.channel-network__intro > p:last-child {
  max-width: 390px;
  margin: 20px 0 0;
  color: rgba(242, 241, 236, 0.58);
  font-size: 0.82rem;
  line-height: 1.65;
}

.channel-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin: 0;
  padding: 0;
  border-top: 1px solid rgba(242, 241, 236, 0.2);
  border-bottom: 1px solid rgba(242, 241, 236, 0.2);
  list-style: none;
}

.channel-slot {
  position: relative;
  display: grid;
  align-content: start;
  min-height: 176px;
  padding: 24px 18px 20px;
  border-right: 1px solid rgba(242, 241, 236, 0.14);
}

.channel-slot:last-child {
  border-right: 0;
}

.channel-slot::before {
  content: "";
  position: absolute;
  top: -3px;
  left: 18px;
  width: 5px;
  height: 5px;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(0, 191, 232, 0.7);
}

.channel-slot svg {
  width: 40px;
  height: 40px;
  margin-bottom: 24px;
  fill: currentColor;
  stroke: none;
}

.channel-slot__logo--alibaba { color: #ff6a00; }
.channel-slot__logo--amazon { color: #f2f1ec; }
.channel-slot__logo--wechat { color: #07c160; }
.channel-slot__logo--line { color: #06c755; }

.channel-slot__logo path {
  vector-effect: non-scaling-stroke;
}

.channel-slot__name {
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 650;
}

.channel-slot__role {
  margin-top: 6px;
  color: rgba(242, 241, 236, 0.38);
  font: 0.52rem var(--mono);
  letter-spacing: 0.07em;
}

.channel-slot__state {
  align-self: end;
  margin-top: 22px;
  color: var(--cyan);
  font: 500 0.58rem var(--mono);
}

.footer-legal {
  padding-top: 26px;
  border-top: 1px solid rgba(242, 241, 236, 0.12);
}

@keyframes telemetry-sweep {
  0%, 18% { transform: skewX(-12deg) translateX(-160%); opacity: 0; }
  30% { opacity: 0.42; }
  72% { opacity: 0.28; }
  84%, 100% { transform: skewX(-12deg) translateX(340%); opacity: 0; }
}

@keyframes signal-pulse {
  0%, 100% { transform: scaleX(0.68); opacity: 0.7; }
  50% { transform: scaleX(1); opacity: 1; }
}

@keyframes band-scan {
  0%, 100% { transform: translateX(-80px); opacity: 0.28; }
  50% { transform: translateX(80px); opacity: 0.78; }
}

.noscript {
  position: fixed;
  z-index: 100;
  bottom: 0;
  width: 100%;
  margin: 0;
  padding: 12px;
  background: var(--paper);
  color: var(--ink);
  text-align: center;
}

@media (max-width: 980px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .primary-nav {
    display: none;
  }

  .hero {
    min-height: 76svh;
  }

  .hero-copy {
    width: 58%;
    margin-left: 6%;
  }

  h1 {
    font-size: 4rem;
  }

  .hero-copy__body,
  .hero-actions {
    margin-left: 8%;
  }

  .hero-spec {
    right: 3%;
  }

  .hero-spec__item {
    min-width: 124px;
  }

  .engineering-band,
  .fitment-band {
    grid-template-columns: 0.25fr 1fr;
  }

  .engineering-band__copy,
  .fitment-band > p:last-child {
    grid-column: 2;
  }

  .evidence-rail {
    grid-column: 1 / -1;
  }

  .campaign-band {
    grid-template-columns: 0.28fr 1.3fr;
  }

  .campaign-band__signature {
    display: none;
  }

  .channel-network {
    grid-template-columns: 1fr;
    gap: 40px;
  }
}

@media (max-width: 700px) {
  .site-header {
    min-height: 64px;
    padding: 0 18px;
  }

  .brand-wordmark {
    width: 86px;
  }

  .brand-mark {
    width: 30px;
    height: 30px;
    margin-right: 8px;
  }

  .brand-local {
    display: none;
  }

  .locale-control__index {
    display: none;
  }

  .locale-control select {
    max-width: 146px;
    font-size: 0.66rem;
  }

  .hero {
    align-items: flex-start;
    min-height: 73svh;
    padding-top: 94px;
  }

  .hero-grid {
    opacity: 0.48;
    background-size: 40px 40px, 40px 40px, 180px 180px;
    -webkit-mask-image: linear-gradient(90deg, transparent 18%, #000 54%, #000 100%);
    mask-image: linear-gradient(90deg, transparent 18%, #000 54%, #000 100%);
  }

  .hero-scan {
    top: 64px;
    left: 62%;
    width: 28%;
  }

  .hero-telemetry {
    display: none;
  }

  .hero-axis {
    top: 64px;
    left: 76%;
  }

  .hero-copy {
    width: 88%;
    margin-left: 6%;
    padding-top: 0;
  }

  .hero-copy::before {
    top: 92px;
    bottom: 12px;
    left: -10px;
  }

  .eyebrow {
    max-width: 70%;
    margin-bottom: 16px;
    font-size: 0.58rem;
  }

  .eyebrow__line {
    width: 30px;
  }

  h1 {
    max-width: 88%;
    font-size: 3.1rem;
  }

  .hero-copy__body {
    max-width: 60%;
    margin: 18px 0 0;
    font-size: 0.82rem;
    line-height: 1.5;
  }

  .hero-actions {
    gap: 18px;
    margin: 20px 0 0;
  }

  .button {
    min-height: 42px;
    font-size: 0.68rem;
  }

  .button--primary {
    min-width: 164px;
  }

  .button--text {
    display: none;
  }

  .hero-spec {
    right: auto;
    bottom: 20px;
    left: 6%;
    max-width: 88%;
  }

  .hero-spec__item {
    min-width: 112px;
    padding: 9px 12px 10px;
  }

  .hero-spec__value {
    font-size: 1rem;
  }

  .hero-spec__label {
    max-width: 112px;
    font-size: 0.58rem;
  }

  .hero-edition {
    top: 88px;
    right: 14px;
  }

  .precision-strip {
    grid-template-columns: 1fr;
    gap: 28px;
    min-height: 360px;
    padding: 48px 6% 72px;
  }

  .precision-strip h2,
  .engineering-band h2,
  .fitment-band h2 {
    font-size: 2rem;
  }

  .precision-strip__copy {
    max-width: 84%;
    font-size: 0.88rem;
  }

  .engineering-band,
  .fitment-band {
    grid-template-columns: 1fr;
    gap: 24px;
    min-height: 380px;
    padding: 64px 6%;
  }

  .engineering-band__copy,
  .fitment-band > p:last-child {
    grid-column: 1;
  }

  .evidence-rail {
    grid-column: 1;
    grid-template-columns: 1fr;
    margin-top: 20px;
  }

  .evidence-rail li,
  .evidence-rail li + li {
    min-height: 0;
    padding: 22px 0;
    border-right: 0;
    border-bottom: 1px solid rgba(242, 241, 236, 0.16);
  }

  .evidence-rail li:last-child {
    border-bottom: 0;
  }

  .campaign-band {
    grid-template-columns: 1fr;
    gap: 24px;
    min-height: 430px;
    padding: 64px 6%;
  }

  .campaign-band::after {
    right: -42vw;
    bottom: -26vw;
    width: 92vw;
    height: 92vw;
  }

  .campaign-band__message h2 {
    font-size: 2.8rem;
    line-height: 1.02;
  }

  html[lang="zh-Hant"] .campaign-band__message h2,
  html[lang="zh-Hans"] .campaign-band__message h2 {
    font-size: 2.4rem;
  }

  .campaign-band__message > p {
    max-width: 86%;
    margin-top: 24px;
    font-size: 0.88rem;
  }

  .site-footer {
    padding: 44px 6% 24px;
  }

  .footer-brand-row,
  .footer-legal {
    align-items: flex-start;
    flex-direction: column;
    gap: 16px;
  }

  .channel-network {
    padding: 52px 0;
  }

  .channel-network__intro h2 {
    font-size: 2rem;
  }

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

  .channel-slot {
    min-height: 158px;
    padding: 20px 14px 18px;
  }

  .channel-slot:nth-child(2) {
    border-right: 0;
  }

  .channel-slot:nth-child(-n + 2) {
    border-bottom: 1px solid rgba(242, 241, 236, 0.14);
  }

  .channel-slot::before {
    left: 14px;
  }
}

@media (max-height: 720px) and (min-width: 701px) {
  .hero {
    min-height: 86svh;
  }

  h1 {
    font-size: 3.8rem;
  }

  .hero-copy__body {
    margin-top: 18px;
  }

  .hero-actions {
    margin-top: 18px;
  }
}

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

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

  .hero-scan,
  .engineering-band::before,
  .eyebrow__line {
    animation: none !important;
  }
}