:root {
  color-scheme: dark;
  --bg: #090d10;
  --bg-deep: #06090b;
  --panel: #10161a;
  --panel-soft: #141b20;
  --line: rgba(226, 232, 236, 0.12);
  --line-strong: rgba(226, 232, 236, 0.22);
  --text: #f2f3ef;
  --muted: #9ca7ab;
  --muted-strong: #c4cbcc;
  --gold: #d5b477;
  --gold-soft: #9e7f4d;
  --gold-pale: #ead5aa;
  --success: #79b99a;
  --shell: min(1180px, calc(100vw - 48px));
  --header-height: 78px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 38px);
  overflow-x: clip;
  background: var(--bg);
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 80% 10%, rgba(213, 180, 119, 0.06), transparent 28rem),
    var(--bg);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", "Noto Sans CJK SC", Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  content: "";
  opacity: 0.16;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.16'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

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

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

button,
a {
  -webkit-tap-highlight-color: transparent;
}

button {
  color: inherit;
}

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

p,
h1,
h2,
h3,
blockquote,
figure,
dl,
dd {
  margin: 0;
}

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

::selection {
  background: var(--gold);
  color: var(--bg-deep);
}

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

.shell {
  width: var(--shell);
  margin-inline: auto;
}

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

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 2000;
  padding: 10px 16px;
  border-radius: 8px;
  background: var(--gold-pale);
  color: #111;
  transform: translateY(-150%);
  transition: transform 180ms ease;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  border-bottom: 1px solid transparent;
  transition: background 240ms ease, border-color 240ms ease, backdrop-filter 240ms ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(9, 13, 16, 0.84);
  backdrop-filter: blur(18px);
}

.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
}

.brand__mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.brand__mark img {
  width: 100%;
  height: 100%;
}

.brand__text {
  display: grid;
  gap: 1px;
  line-height: 1.15;
}

.brand__text strong {
  font-size: 16px;
  letter-spacing: 0.18em;
}

.brand__text small {
  color: var(--muted);
  font-family: Arial, sans-serif;
  font-size: 8px;
  letter-spacing: 0.2em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 30px;
}

.primary-nav > a {
  position: relative;
  padding-block: 26px;
  color: #aab3b5;
  font-size: 13px;
  white-space: nowrap;
  transition: color 180ms ease;
}

.primary-nav > a::after {
  position: absolute;
  right: 0;
  bottom: 18px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 240ms var(--ease);
}

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

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

.nav-card-button {
  min-height: 40px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.02);
  color: var(--gold-pale);
  font-size: 12px;
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease;
}

.nav-card-button:hover {
  border-color: rgba(213, 180, 119, 0.54);
  background: rgba(213, 180, 119, 0.08);
}

.menu-button {
  display: none;
}

.hero {
  position: relative;
  min-height: calc(100svh - var(--header-height));
  display: grid;
  align-items: center;
  overflow: hidden;
  padding: 70px 0 104px;
}

.hero__grid {
  position: absolute;
  inset: 0;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, transparent, #000 22%, #000 72%, transparent);
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(10px);
}

.hero__glow--one {
  width: 560px;
  height: 560px;
  top: -260px;
  right: 10%;
  background: radial-gradient(circle, rgba(213, 180, 119, 0.08), transparent 68%);
}

.hero__glow--two {
  width: 420px;
  height: 420px;
  bottom: -280px;
  left: -160px;
  background: radial-gradient(circle, rgba(92, 133, 143, 0.1), transparent 66%);
}

.hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.94fr) minmax(430px, 0.86fr);
  align-items: center;
  gap: clamp(48px, 7vw, 112px);
}

.eyebrow,
.section-index {
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 26px;
}

.eyebrow i {
  width: 26px;
  height: 1px;
  background: rgba(213, 180, 119, 0.52);
}

.hero h1 {
  display: grid;
  gap: 13px;
  line-height: 1.08;
}

.hero h1 > span {
  color: #c7ccca;
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 300;
  letter-spacing: 0.16em;
}

.hero h1 > strong {
  font-size: clamp(50px, 5.5vw, 80px);
  font-weight: 600;
  letter-spacing: -0.045em;
}

.hero__lead {
  max-width: 600px;
  margin-top: 30px;
  color: var(--muted-strong);
  font-size: 16px;
  line-height: 1.9;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  min-height: 50px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform 180ms var(--ease), background 180ms ease, border-color 180ms ease;
}

.button svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

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

.button--primary {
  background: linear-gradient(135deg, #e0c48e, #b78e52);
  color: #111517;
  box-shadow: 0 14px 40px rgba(168, 128, 70, 0.16);
}

.button--primary:hover {
  background: linear-gradient(135deg, #ead4a7, #c79c5d);
}

.button--ghost {
  border-color: var(--line-strong);
  color: var(--muted-strong);
}

.button--ghost:hover {
  border-color: rgba(213, 180, 119, 0.5);
  background: rgba(213, 180, 119, 0.06);
  color: var(--text);
}

.hero__signals {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.hero__signals > div {
  display: grid;
  gap: 4px;
  padding: 20px 16px 0 0;
}

.hero__signals > div + div {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.hero__signals strong {
  color: var(--gold-pale);
  font-size: 13px;
  letter-spacing: 0.12em;
}

.hero__signals span {
  color: #788387;
  font-size: 11px;
}

.hero__visual {
  position: relative;
  min-width: 0;
  perspective: 1200px;
}

.precision-card {
  --rotate-x: 0deg;
  --rotate-y: 0deg;
  --shine-x: 50%;
  --shine-y: 50%;
  position: relative;
  min-height: 610px;
  overflow: hidden;
  border: 1px solid rgba(229, 218, 197, 0.2);
  background: #0b0f12;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.42);
  transform: rotateX(var(--rotate-x)) rotateY(var(--rotate-y));
  transform-style: preserve-3d;
  transition: transform 260ms var(--ease);
}

.precision-card::before {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  content: "";
  background: radial-gradient(circle at var(--shine-x) var(--shine-y), rgba(255, 255, 255, 0.08), transparent 28%);
}

.precision-card::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(to bottom, rgba(5, 7, 8, 0.1), transparent 30%, rgba(5, 7, 8, 0.72)),
    linear-gradient(to right, rgba(5, 7, 8, 0.52), transparent 58%);
}

.precision-card__media,
.precision-card__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.precision-card__media img {
  object-fit: cover;
  object-position: 56% center;
  filter: saturate(0.88) contrast(1.05);
}

.concept-chip {
  position: absolute;
  right: 18px;
  bottom: 18px;
  z-index: 4;
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(8, 11, 13, 0.68);
  color: #bcc3c3;
  font-size: 9px;
  letter-spacing: 0.12em;
  backdrop-filter: blur(8px);
}

.precision-card__meta,
.precision-card__caption {
  position: absolute;
  z-index: 5;
  left: 26px;
}

.precision-card__meta {
  top: 24px;
  right: 26px;
  display: flex;
  justify-content: space-between;
  color: rgba(230, 232, 228, 0.66);
  font-family: Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.2em;
}

.precision-card__caption {
  right: 26px;
  bottom: 28px;
  display: grid;
  gap: 4px;
}

.precision-card__caption > span,
.precision-card__caption > small {
  color: rgba(220, 225, 224, 0.62);
  font-family: Arial, sans-serif;
  font-size: 8px;
  letter-spacing: 0.18em;
}

.precision-card__caption strong {
  margin-top: 4px;
  font-size: 26px;
  letter-spacing: 0.16em;
}

.mobile-business-card {
  position: absolute;
  right: -48px;
  bottom: -56px;
  z-index: 6;
  width: 220px;
  min-height: 286px;
  padding: 23px;
  display: grid;
  align-content: end;
  border: 1px solid rgba(213, 180, 119, 0.28);
  background:
    linear-gradient(145deg, rgba(213, 180, 119, 0.12), transparent 40%),
    rgba(13, 18, 21, 0.92);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.44);
  backdrop-filter: blur(16px);
}

.mobile-business-card__logo {
  position: absolute;
  top: 18px;
  left: 18px;
  width: 42px;
  height: 42px;
}

.mobile-business-card__label {
  position: absolute;
  top: 28px;
  right: 20px;
  color: #7e888a;
  font-family: Arial, sans-serif;
  font-size: 7px;
  letter-spacing: 0.18em;
}

.mobile-business-card > strong {
  font-size: 20px;
  letter-spacing: 0.12em;
}

.mobile-business-card > p {
  margin-top: 4px;
  color: var(--muted);
  font-size: 11px;
}

.mobile-business-card__actions {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
}

.mobile-business-card__actions button {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  cursor: pointer;
  transition: border-color 180ms ease, background 180ms ease;
}

.mobile-business-card__actions button:hover {
  border-color: rgba(213, 180, 119, 0.5);
  background: rgba(213, 180, 119, 0.08);
}

.mobile-business-card__actions svg,
.mobile-dock svg,
.contact__location svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.hero__scroll {
  position: absolute;
  bottom: 28px;
  left: 50%;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 14px;
  color: #667175;
  font-family: Arial, sans-serif;
  font-size: 8px;
  letter-spacing: 0.2em;
  transform: translateX(-50%);
}

.hero__scroll i {
  position: relative;
  width: 42px;
  height: 1px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
}

.hero__scroll i::after {
  position: absolute;
  width: 14px;
  height: 1px;
  content: "";
  background: var(--gold);
  animation: scroll-line 2.2s ease-in-out infinite;
}

@keyframes scroll-line {
  from { transform: translateX(-16px); }
  to { transform: translateX(46px); }
}

.focus-strip {
  border-block: 1px solid var(--line);
  background: #0b1013;
}

.focus-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.focus-strip__grid > div {
  min-height: 110px;
  padding: 24px 28px;
  display: grid;
  grid-template-columns: auto 1fr;
  align-content: center;
  column-gap: 16px;
}

.focus-strip__grid > div + div {
  border-left: 1px solid var(--line);
}

.focus-strip__grid span {
  grid-row: 1 / 3;
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.12em;
}

.focus-strip__grid strong {
  font-size: 14px;
  letter-spacing: 0.08em;
}

.focus-strip__grid small {
  color: var(--muted);
  font-size: 11px;
}

.section {
  padding: 130px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.74fr) minmax(0, 1.1fr);
  gap: clamp(60px, 10vw, 150px);
}

.section-intro h2,
.section-heading h2,
.digital-section h2,
.contact h2 {
  margin-top: 20px;
  font-size: clamp(34px, 4.2vw, 58px);
  font-weight: 500;
  line-height: 1.22;
  letter-spacing: -0.04em;
}

.about {
  position: relative;
  background: #0d1215;
}

.about::after {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(50% - 1px);
  width: 1px;
  content: "";
  background: linear-gradient(to bottom, transparent, var(--line), transparent);
}

.about__content {
  position: relative;
  z-index: 1;
}

.about__lead {
  color: #c8cecd;
  font-size: clamp(19px, 2vw, 26px);
  line-height: 1.8;
}

.about__notes {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border-block: 1px solid var(--line);
}

.about__notes article {
  padding: 26px 26px 26px 0;
}

.about__notes article + article {
  padding-left: 28px;
  border-left: 1px solid var(--line);
}

.about__notes span {
  color: var(--gold);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.about__notes p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.about blockquote {
  position: relative;
  margin-top: 48px;
  padding-left: 50px;
}

.about blockquote i {
  position: absolute;
  top: -10px;
  left: 0;
  color: rgba(213, 180, 119, 0.26);
  font-family: Georgia, serif;
  font-size: 66px;
  font-style: normal;
  line-height: 1;
}

.about blockquote p {
  color: #8f999b;
  font-size: 14px;
  letter-spacing: 0.02em;
}

.section-heading {
  margin-bottom: 54px;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 50px;
}

.section-heading > p {
  max-width: 460px;
  color: var(--muted);
  font-size: 13px;
}

.capabilities {
  background:
    linear-gradient(180deg, #090d10, rgba(15, 21, 25, 0.9)),
    var(--bg);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.capability-card {
  min-height: 420px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  background: #0d1215;
  transition: background 260ms ease, transform 260ms var(--ease);
}

.capability-card:hover {
  z-index: 1;
  background: #12191d;
  transform: translateY(-5px);
}

.capability-card--feature {
  background:
    linear-gradient(145deg, rgba(213, 180, 119, 0.08), transparent 50%),
    #0d1215;
}

.capability-card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: #768084;
  font-family: Arial, sans-serif;
  font-size: 9px;
  letter-spacing: 0.14em;
}

.capability-card__top span {
  color: var(--gold);
}

.capability-card__icon {
  width: 112px;
  height: 112px;
  margin: 48px auto 34px;
  display: grid;
  place-items: center;
  color: #657074;
}

.capability-card__icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  transition: color 220ms ease, transform 400ms var(--ease);
}

.capability-card:hover .capability-card__icon svg {
  color: var(--gold-soft);
  transform: scale(1.04);
}

.capability-card h3 {
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.capability-card p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.85;
}

.capability-card__status {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  color: #747f82;
  font-size: 10px;
  letter-spacing: 0.08em;
}

.digital-section {
  position: relative;
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: #0b1013;
}

.digital-section::before {
  position: absolute;
  inset: 0;
  content: "";
  opacity: 0.15;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}

.digital-section__layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.78fr) minmax(430px, 0.9fr);
  align-items: center;
  gap: clamp(60px, 10vw, 140px);
}

.digital-section__content > p {
  margin-top: 26px;
  color: var(--muted);
  font-size: 14px;
}

.digital-section__content ul {
  margin-top: 34px;
  display: grid;
  gap: 16px;
}

.digital-section__content li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  color: #b5bdbe;
  font-size: 12px;
}

.digital-section__content li i {
  width: 5px;
  height: 5px;
  margin-top: 7px;
  flex: 0 0 auto;
  background: var(--gold);
  transform: rotate(45deg);
}

.data-panel {
  border: 1px solid rgba(213, 180, 119, 0.2);
  background: rgba(10, 15, 18, 0.84);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.36);
  backdrop-filter: blur(12px);
}

.data-panel__header {
  min-height: 48px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  color: #727d80;
  font-family: Arial, sans-serif;
  font-size: 8px;
  letter-spacing: 0.16em;
}

.data-panel__header span {
  display: flex;
  align-items: center;
  gap: 8px;
}

.data-panel__header i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 12px rgba(121, 185, 154, 0.45);
}

.data-panel__code {
  min-height: 180px;
  padding: 34px;
  display: grid;
  place-content: center;
  gap: 8px;
  text-align: center;
}

.data-panel__code small,
.data-panel__code span {
  color: #657074;
  font-family: Arial, sans-serif;
  font-size: 8px;
  letter-spacing: 0.18em;
}

.data-panel__code strong {
  color: var(--gold-pale);
  font-family: Consolas, "Courier New", monospace;
  font-size: clamp(22px, 3vw, 34px);
  font-weight: 400;
  letter-spacing: 0.08em;
}

.data-panel__flow {
  min-height: 70px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-block: 1px solid var(--line);
}

.data-panel__flow span {
  color: #abb3b4;
  font-size: 10px;
  white-space: nowrap;
}

.data-panel__flow i {
  width: 26px;
  height: 1px;
  background: linear-gradient(to right, var(--line-strong), var(--gold-soft));
}

.data-panel__rows {
  padding: 10px 22px 20px;
}

.data-panel__rows > div {
  min-height: 46px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  color: #808b8e;
  font-size: 11px;
}

.data-panel__rows b {
  color: #b8c0c1;
  font-weight: 400;
}

.data-panel__rows b.is-ready {
  color: var(--success);
}

.process {
  background: #0d1215;
}

.process-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-block: 1px solid var(--line);
}

.process-list li {
  position: relative;
  min-height: 260px;
  padding: 28px 26px;
  display: flex;
  flex-direction: column;
}

.process-list li + li {
  border-left: 1px solid var(--line);
}

.process-list > li > span {
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: 10px;
  letter-spacing: 0.15em;
}

.process-list li > div {
  margin-top: auto;
}

.process-list h3 {
  font-size: 17px;
  font-weight: 500;
}

.process-list p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 11px;
}

.process-list li > i {
  position: absolute;
  top: 32px;
  right: -8px;
  z-index: 2;
  width: 15px;
  height: 15px;
  border-top: 1px solid var(--line-strong);
  border-right: 1px solid var(--line-strong);
  background: #0d1215;
  transform: rotate(45deg);
}

.evidence {
  background: var(--bg);
}

.evidence-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr 0.75fr;
  grid-template-rows: 270px 270px;
  gap: 12px;
}

.evidence-card {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #11171b;
}

.evidence-card--wide {
  grid-row: 1 / 3;
}

.evidence-card:last-child {
  grid-column: 2 / 4;
}

.evidence-card::after {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  content: "";
  background: linear-gradient(to top, rgba(5, 8, 10, 0.9), transparent 58%);
}

.evidence-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06);
  transition: transform 800ms var(--ease), filter 500ms ease;
}

.evidence-card:hover img {
  filter: saturate(0.92) contrast(1.04);
  transform: scale(1.035);
}

.evidence-card figcaption {
  position: absolute;
  right: 22px;
  bottom: 20px;
  left: 22px;
  z-index: 2;
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  gap: 2px 12px;
}

.evidence-card figcaption span {
  grid-row: 1 / 3;
  color: var(--gold);
  font-family: Arial, sans-serif;
  font-size: 9px;
}

.evidence-card figcaption strong {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.evidence-card figcaption small {
  color: #9ca6a7;
  font-size: 9px;
}

.contact {
  position: relative;
  overflow: hidden;
  padding: 130px 0;
  border-top: 1px solid var(--line);
  background: #0b1013;
}

.contact__glow {
  position: absolute;
  width: 700px;
  height: 700px;
  right: -300px;
  bottom: -430px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(213, 180, 119, 0.1), transparent 66%);
}

.contact__layout {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(400px, 0.7fr);
  align-items: center;
  gap: clamp(60px, 10vw, 140px);
}

.contact__content > p {
  max-width: 620px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 13px;
}

.contact__location {
  margin-top: 38px;
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--gold-pale);
}

.contact__location svg {
  width: 25px;
  height: 25px;
}

.contact__location div {
  display: grid;
}

.contact__location small {
  color: #6f7a7d;
  font-family: Arial, sans-serif;
  font-size: 8px;
  letter-spacing: 0.16em;
}

.contact__location strong {
  font-size: 13px;
  font-weight: 500;
}

.contact-card {
  padding: 34px;
  border: 1px solid rgba(213, 180, 119, 0.22);
  background:
    linear-gradient(145deg, rgba(213, 180, 119, 0.08), transparent 45%),
    #11171b;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.34);
}

.contact-card__brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-card__brand > div {
  display: grid;
}

.contact-card__brand strong {
  font-size: 18px;
  letter-spacing: 0.12em;
}

.contact-card__brand small {
  color: var(--muted);
  font-size: 10px;
}

.contact-card dl {
  margin-top: 28px;
  border-top: 1px solid var(--line);
}

.contact-card dl > div {
  min-height: 48px;
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  border-bottom: 1px solid var(--line);
  font-size: 11px;
}

.contact-card dt {
  color: #6f797c;
}

.contact-card dd {
  color: #b7bfc0;
}

.contact-detail-button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--gold-pale);
  text-align: left;
  cursor: pointer;
  transition: color 180ms ease;
}

.contact-detail-button:hover {
  color: #fff2d2;
}

.contact-card__actions {
  margin-top: 26px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--line);
  background: #070a0c;
}

.site-footer__inner {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
}

.brand--footer .brand__mark {
  width: 32px;
  height: 32px;
}

.site-footer p {
  margin-top: 16px;
  color: #667174;
  font-size: 10px;
}

.site-footer__meta {
  display: grid;
  gap: 6px;
  color: #657073;
  font-size: 10px;
  text-align: right;
}

.site-footer__meta b {
  font-weight: 400;
}

.site-footer__meta a {
  transition: color 180ms ease;
}

.site-footer__meta a:hover {
  color: var(--gold-pale);
}

.mobile-dock {
  display: none;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 200;
  max-width: min(360px, calc(100vw - 32px));
  padding: 14px 18px;
  border: 1px solid rgba(213, 180, 119, 0.28);
  background: rgba(15, 21, 25, 0.95);
  color: #d7dcda;
  font-size: 12px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.42);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 200ms ease, transform 240ms var(--ease);
  backdrop-filter: blur(12px);
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

body.modal-open {
  overflow: hidden;
}

.contact-modal[hidden] {
  display: none;
}

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  padding: 24px;
  display: grid;
  place-items: center;
}

.contact-modal__backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  background: rgba(3, 5, 7, 0.82);
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.contact-modal__dialog {
  position: relative;
  z-index: 1;
  width: min(480px, 100%);
  max-height: min(760px, calc(100dvh - 48px));
  padding: 38px;
  overflow: auto;
  border: 1px solid rgba(213, 180, 119, 0.28);
  background:
    linear-gradient(145deg, rgba(213, 180, 119, 0.08), transparent 38%),
    #0d1317;
  box-shadow: 0 34px 100px rgba(0, 0, 0, 0.62);
  opacity: 0;
  transform: translateY(18px) scale(0.98);
  transition: opacity 220ms ease, transform 260ms var(--ease);
}

.contact-modal.is-open .contact-modal__dialog {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.contact-modal__dialog:focus {
  outline: none;
}

.contact-modal__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  cursor: pointer;
}

.contact-modal__close svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
}

.contact-modal__view h2 {
  margin-top: 14px;
  font-size: 30px;
  font-weight: 500;
}

.contact-modal__view > p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.8;
}

.contact-modal__phone {
  margin-top: 28px;
  display: block;
  color: var(--gold-pale);
  font-family: Arial, sans-serif;
  font-size: clamp(34px, 8vw, 48px);
  font-weight: 600;
  letter-spacing: 0.03em;
  line-height: 1.1;
}

.contact-modal__primary {
  width: 100%;
  margin-top: 26px;
}

.contact-modal__qr {
  width: min(330px, 100%);
  max-height: 58dvh;
  margin: 22px auto 0;
  object-fit: contain;
  border: 10px solid #fff;
  background: #fff;
}

.contact-modal__destination {
  color: var(--gold-pale) !important;
  font-size: 15px !important;
}

.map-options {
  margin-top: 24px;
  display: grid;
  gap: 10px;
}

.map-options > a {
  min-height: 72px;
  padding: 12px 16px;
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  transition: border-color 180ms ease, background 180ms ease;
}

.map-options > a:hover {
  border-color: rgba(213, 180, 119, 0.48);
  background: rgba(213, 180, 119, 0.07);
}

.map-options > a > span:nth-child(2) {
  display: grid;
  gap: 1px;
}

.map-options strong {
  font-size: 14px;
  font-weight: 500;
}

.map-options small,
.contact-modal__hint {
  color: var(--muted);
  font-size: 10px;
}

.map-options > a > i {
  color: var(--gold);
  font-style: normal;
}

.map-options__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 10px;
  color: #fff;
  font-size: 14px;
  font-weight: 700;
}

.map-options__mark--amap {
  background: #1d6fff;
}

.map-options__mark--baidu {
  background: #4b57d9;
}

.map-options__mark--tencent {
  background: #23a774;
}

.contact-modal__hint {
  margin-top: 16px;
  display: block;
  line-height: 1.7;
}

.js.reveal-ready .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms var(--ease) var(--reveal-delay, 0ms),
    transform 700ms var(--ease) var(--reveal-delay, 0ms);
}

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

@media (max-width: 1080px) {
  :root {
    --shell: min(100% - 40px, 960px);
  }

  .primary-nav {
    gap: 20px;
  }

  .primary-nav > a {
    font-size: 12px;
  }

  .hero__layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(390px, 0.8fr);
    gap: 52px;
  }

  .precision-card {
    min-height: 540px;
  }

  .mobile-business-card {
    right: -20px;
    bottom: -42px;
  }

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

@media (max-width: 900px) {
  :root {
    --header-height: 70px;
  }

  .menu-button {
    position: relative;
    z-index: 70;
    width: 44px;
    height: 44px;
    display: grid;
    place-content: center;
    gap: 7px;
    border: 0;
    background: transparent;
    cursor: pointer;
  }

  .menu-button i {
    width: 24px;
    height: 1px;
    background: var(--text);
    transition: transform 220ms ease;
  }

  .menu-button[aria-expanded="true"] i:first-of-type {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-button[aria-expanded="true"] i:last-of-type {
    transform: translateY(-4px) rotate(-45deg);
  }

  .primary-nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 65;
    width: min(390px, 88vw);
    height: 100dvh;
    padding: 118px 34px 36px;
    display: flex;
    align-items: stretch;
    flex-direction: column;
    gap: 0;
    border-left: 1px solid var(--line);
    background: rgba(9, 13, 16, 0.98);
    box-shadow: -26px 0 70px rgba(0, 0, 0, 0.42);
    transform: translateX(105%);
    transition: transform 320ms var(--ease);
    backdrop-filter: blur(20px);
    overflow-y: auto;
    overscroll-behavior: contain;
  }

  .primary-nav.is-open {
    transform: translateX(0);
  }

  .primary-nav > a {
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    font-size: 16px;
  }

  .primary-nav > a::after {
    display: none;
  }

  .nav-card-button {
    margin-top: 28px;
    min-height: 52px;
  }

  .menu-backdrop {
    position: fixed;
    inset: 0;
    z-index: 60;
    background: rgba(3, 5, 6, 0.68);
    backdrop-filter: blur(3px);
  }

  body.menu-open {
    overflow: hidden;
  }

  body.menu-open .site-header {
    z-index: 70;
  }

  .hero {
    padding-top: 44px;
  }

  .hero__layout {
    grid-template-columns: 1fr;
    gap: 54px;
  }

  .hero__content {
    max-width: 680px;
  }

  .hero__visual {
    width: min(700px, 88%);
    margin-inline: auto;
  }

  .precision-card {
    min-height: 560px;
  }

  .mobile-business-card {
    right: -44px;
  }

  .hero__scroll {
    display: none;
  }

  .section-grid,
  .digital-section__layout,
  .contact__layout {
    grid-template-columns: 1fr;
  }

  .section-grid,
  .digital-section__layout,
  .contact__layout {
    gap: 54px;
  }

  .about::after {
    display: none;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 24px;
  }

  .section-heading > p {
    max-width: 640px;
  }

  .data-panel {
    max-width: 680px;
  }

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

  .process-list li:nth-child(3) {
    border-left: 0;
  }

  .process-list li:nth-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .process-list li:nth-child(2) > i {
    display: none;
  }

  .evidence-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 330px 240px 240px;
  }

  .evidence-card--wide {
    grid-column: 1 / 3;
    grid-row: auto;
  }

  .evidence-card:last-child {
    grid-column: auto;
  }

  .contact-card {
    max-width: 680px;
  }
}

@media (max-width: 680px) {
  :root {
    --shell: calc(100% - 32px);
    --header-height: 64px;
  }

  body {
    padding-bottom: 72px;
  }

  .brand__mark {
    width: 38px;
    height: 38px;
  }

  .brand__text strong {
    font-size: 14px;
  }

  .brand__text small {
    font-size: 7px;
  }

  .hero {
    min-height: auto;
    padding: 44px 0 74px;
  }

  .hero__grid {
    background-size: 42px 42px;
  }

  .eyebrow {
    margin-bottom: 20px;
    font-size: 9px;
  }

  .hero h1 > span {
    font-size: 17px;
  }

  .hero h1 > strong {
    font-size: clamp(42px, 13vw, 58px);
    line-height: 1.13;
  }

  .hero__lead {
    margin-top: 22px;
    font-size: 14px;
  }

  .hero__actions {
    margin-top: 30px;
    display: grid;
    grid-template-columns: 1fr;
  }

  .hero__actions .button {
    width: 100%;
  }

  .hero__signals {
    margin-top: 34px;
    grid-template-columns: 1fr;
  }

  .hero__signals > div,
  .hero__signals > div + div {
    padding: 13px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .hero__visual {
    width: 100%;
    padding-bottom: 88px;
  }

  .precision-card {
    min-height: 470px;
  }

  .precision-card__media img {
    object-position: 63% center;
  }

  .precision-card__caption {
    bottom: 24px;
  }

  .precision-card__caption strong {
    font-size: 21px;
  }

  .concept-chip {
    right: 12px;
    bottom: 12px;
    font-size: 7px;
  }

  .mobile-business-card {
    right: 15px;
    bottom: 0;
    width: 200px;
    min-height: 230px;
  }

  .focus-strip__grid {
    grid-template-columns: 1fr;
  }

  .focus-strip__grid > div {
    min-height: 88px;
    padding-inline: 0;
  }

  .focus-strip__grid > div + div {
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .section,
  .contact {
    padding: 88px 0;
  }

  .section-intro h2,
  .section-heading h2,
  .digital-section h2,
  .contact h2 {
    font-size: clamp(31px, 9vw, 42px);
  }

  .about__lead {
    font-size: 18px;
  }

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

  .about__notes article,
  .about__notes article + article {
    padding: 22px 0;
    border-left: 0;
  }

  .about__notes article + article {
    border-top: 1px solid var(--line);
  }

  .about blockquote {
    padding-left: 38px;
  }

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

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

  .capability-card__icon {
    margin: 36px auto 28px;
  }

  .digital-section__layout {
    gap: 44px;
  }

  .data-panel__code {
    min-height: 150px;
    padding-inline: 12px;
  }

  .data-panel__code strong {
    font-size: 22px;
    letter-spacing: 0.03em;
  }

  .data-panel__flow {
    padding-inline: 12px;
    gap: 7px;
  }

  .data-panel__flow i {
    width: 14px;
  }

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

  .process-list li {
    min-height: 200px;
    padding-inline: 0;
    border-bottom: 1px solid var(--line);
  }

  .process-list li + li,
  .process-list li:nth-child(3) {
    border-left: 0;
  }

  .process-list li > i {
    display: none;
  }

  .evidence-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 260px);
  }

  .evidence-card--wide,
  .evidence-card:last-child {
    grid-column: auto;
  }

  .contact-card {
    padding: 26px 20px;
  }

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

  .contact-modal {
    padding: 14px;
  }

  .contact-modal__dialog {
    max-height: calc(100dvh - 28px);
    padding: 30px 22px 24px;
  }

  .contact-modal__view h2 {
    font-size: 26px;
  }

  .contact-modal__phone {
    font-size: 34px;
  }

  .site-footer {
    padding-bottom: 34px;
  }

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

  .site-footer__meta {
    text-align: left;
  }

  .mobile-dock {
    position: fixed;
    right: 10px;
    bottom: 10px;
    left: 10px;
    z-index: 90;
    min-height: 62px;
    padding: 7px 8px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border: 1px solid rgba(213, 180, 119, 0.22);
    background: rgba(11, 16, 19, 0.92);
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.48);
    backdrop-filter: blur(16px);
    transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
  }

  body.menu-open .mobile-dock {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(calc(100% + 18px));
  }

  .mobile-dock button {
    min-height: 48px;
    display: grid;
    place-items: center;
    gap: 1px;
    border: 0;
    border-right: 1px solid var(--line);
    background: transparent;
    color: #c7cdcc;
    font-size: 9px;
    cursor: pointer;
  }

  .mobile-dock button:last-child {
    border-right: 0;
  }

  .mobile-dock svg {
    width: 18px;
    height: 18px;
    color: var(--gold-pale);
  }

  .toast {
    right: 16px;
    bottom: 86px;
    left: 16px;
    max-width: none;
    text-align: center;
  }
}

@media (max-width: 380px) {
  .hero h1 > strong {
    font-size: 40px;
  }

  .precision-card {
    min-height: 430px;
  }

  .mobile-business-card {
    right: 10px;
    width: 186px;
  }
}

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

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

  .js.reveal-ready .reveal {
    opacity: 1;
    transform: none;
  }
}