:root {
  color-scheme: dark;
  --bg: #050708;
  --bg-deep: #030405;
  --panel: #070b0c;
  --panel-soft: #0a0f10;
  --text: #edf4ef;
  --text-soft: #b2bdb8;
  --muted: #7d8984;
  --dim: #59635f;
  --line: rgba(226, 255, 244, 0.12);
  --line-strong: rgba(226, 255, 244, 0.22);
  --mint: #9dffd9;
  --mint-bright: #c6ffed;
  --lime: #d6ff6b;
  --danger: #ff9e8e;
  --font-sans: "Inter", "SF Pro Display", "Helvetica Neue", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-mono: "SFMono-Regular", "Cascadia Mono", "Roboto Mono", "Courier New", Consolas, monospace;
  --page-pad: clamp(22px, 4.8vw, 76px);
  --max-width: 1600px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --header-height: 88px;
}

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

html {
  background: var(--bg);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
  scrollbar-color: #303a36 #050708;
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #050708;
}

::-webkit-scrollbar-thumb {
  border: 2px solid #050708;
  background: #303a36;
}

::-webkit-scrollbar-thumb:hover {
  background: #46524d;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: var(--bg);
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-synthesis: none;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  color: #03110c;
  background: var(--mint);
}

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

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

button {
  color: inherit;
}

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

p,
h1,
h2,
h3,
ul {
  margin: 0;
}

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

em {
  font-style: normal;
}

:focus-visible {
  outline: 1px solid var(--mint);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 12px 18px;
  color: #04110c;
  background: var(--mint);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  transform: translateY(-160%);
  transition: transform 0.25s ease;
}

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

.noise {
  position: fixed;
  inset: 0;
  z-index: 150;
  opacity: 0.042;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.88' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.8'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}

.mono-label,
.eyebrow {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.18em;
  line-height: 1.4;
  text-transform: uppercase;
}

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

/* ============================== Header ============================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 80;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(24px, 4vw, 60px);
  height: var(--header-height);
  padding: 0 var(--page-pad);
  border-bottom: 1px solid transparent;
  transition:
    background-color 0.45s ease,
    border-color 0.45s ease,
    backdrop-filter 0.45s ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(5, 7, 8, 0.78);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.menu-open .site-header {
  border-color: transparent;
  background: transparent;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: max-content;
}

.brand-mark {
  width: 32px;
  height: 32px;
  color: var(--mint);
  flex: 0 0 auto;
}

.brand-mark svg {
  width: 100%;
  height: 100%;
}

.brand-pulse {
  transform-origin: 25px 9px;
  animation: brandPulse 2.6s ease-in-out infinite;
}

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

.brand-cn {
  color: var(--text);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.13em;
  line-height: 1.2;
}

.brand-en {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.23em;
  line-height: 1.2;
}

.desktop-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 2.7vw, 44px);
}

.desktop-nav a {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 12px 0;
  color: var(--text-soft);
  font-size: 12px;
  letter-spacing: 0.04em;
  transition: color 0.25s ease;
}

.desktop-nav a span {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.1em;
  transition: color 0.25s ease;
}

.desktop-nav a::after {
  position: absolute;
  right: 0;
  bottom: 5px;
  left: 0;
  height: 1px;
  content: "";
  background: var(--mint);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}

.desktop-nav a:hover {
  color: var(--text);
}

.desktop-nav a:hover span {
  color: var(--mint);
}

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

.header-tools {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 22px;
}

.header-clock {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.12em;
  white-space: nowrap;
}

.clock-value {
  color: var(--text-soft);
  font-variant-numeric: tabular-nums;
}

.live-dot {
  position: relative;
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 0 4px rgba(157, 255, 217, 0.09);
}

.live-dot::after {
  position: absolute;
  inset: -4px;
  content: "";
  border: 1px solid rgba(157, 255, 217, 0.5);
  border-radius: 50%;
  animation: livePulse 2.4s ease-out infinite;
}

.button {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  min-height: 54px;
  padding: 0 25px;
  border: 1px solid var(--line-strong);
  border-radius: 1px;
  background: transparent;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.08em;
  line-height: 1;
  cursor: pointer;
  overflow: hidden;
  transition:
    border-color 0.35s ease,
    background-color 0.35s ease,
    color 0.35s ease,
    transform 0.35s var(--ease-out);
}

.button::before {
  position: absolute;
  inset: 0;
  content: "";
  background: var(--mint);
  transform: translateY(101%);
  transition: transform 0.45s var(--ease-out);
  z-index: 0;
}

.button > span {
  position: relative;
  z-index: 1;
}

.button-arrow {
  display: inline-block;
  font-size: 15px;
  transition: transform 0.35s var(--ease-out);
}

.button:hover {
  border-color: var(--mint);
  color: #04110c;
}

.button:hover::before {
  transform: translateY(0);
}

.button:hover .button-arrow {
  transform: translate(2px, -2px);
}

.button-compact {
  min-height: 42px;
  padding: 0 18px;
  font-size: 11px;
  gap: 16px;
}

.button-ghost {
  color: var(--text);
}

.button-ghost::before {
  background: var(--mint);
}

.button-solid {
  color: #04110c;
  border-color: var(--mint);
  background: var(--mint);
}

.button-solid::before {
  background: var(--lime);
}

.button-solid:hover {
  border-color: var(--lime);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 1px;
  background: transparent;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 16px;
  height: 1px;
  margin: 5px auto;
  background: var(--text);
  transition:
    transform 0.35s var(--ease-out),
    opacity 0.25s ease;
}

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

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

/* ============================== Mobile menu ============================== */

.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-height) + 34px) var(--page-pad) 34px;
  background:
    radial-gradient(ellipse at 90% 10%, rgba(157, 255, 217, 0.08), transparent 38%),
    #050708;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-14px);
  transition:
    opacity 0.4s ease,
    visibility 0.4s ease,
    transform 0.55s var(--ease-out);
}

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

.mobile-menu-top {
  display: flex;
  justify-content: space-between;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  margin-top: auto;
  margin-bottom: auto;
}

.mobile-nav a {
  display: flex;
  align-items: baseline;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-size: clamp(30px, 9vw, 48px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.2;
  transition: color 0.25s ease;
}

.mobile-nav a span {
  width: 20px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.08em;
}

.mobile-nav a:hover {
  color: var(--mint);
}

.mobile-menu-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}

.mobile-menu-bottom a {
  color: var(--mint);
}

/* ============================== Hero ============================== */

.hero {
  position: relative;
  display: flex;
  min-height: 100vh;
  min-height: 100svh;
  padding: calc(var(--header-height) + 22px) var(--page-pad) 30px;
  overflow: hidden;
  isolation: isolate;
  background: #030506;
}

.hero-stage {
  position: absolute;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 55% at 66% 45%, rgba(25, 62, 64, 0.36), transparent 70%),
    #030506;
}

#matrix-canvas {
  width: 100%;
  height: 100%;
  opacity: 0.96;
}

.hero-aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 40% 44% at 73% 42%, rgba(144, 220, 255, 0.08), transparent 74%),
    radial-gradient(ellipse 34% 40% at 24% 92%, rgba(157, 255, 217, 0.06), transparent 76%);
  mix-blend-mode: screen;
}

.hero-grid {
  position: absolute;
  inset: 0;
  opacity: 0.26;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(201, 255, 238, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 255, 238, 0.055) 1px, transparent 1px);
  background-size: 84px 84px;
  -webkit-mask-image: radial-gradient(ellipse 75% 85% at 55% 50%, #000 20%, transparent 78%);
  mask-image: radial-gradient(ellipse 75% 85% at 55% 50%, #000 20%, transparent 78%);
}

.hero-scanline {
  position: absolute;
  top: -10%;
  right: 0;
  left: 0;
  height: 22%;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(157, 255, 217, 0.025), transparent);
  animation: scanline 12s linear infinite;
}

.hero::after {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  height: 32%;
  content: "";
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgba(3, 5, 6, 0.92));
}

.frame-corners {
  position: absolute;
  inset: 18px;
  z-index: 3;
  pointer-events: none;
}

.corner {
  position: absolute;
  width: 13px;
  height: 13px;
  border-color: rgba(218, 255, 240, 0.26);
  border-style: solid;
}

.corner-tl {
  top: 0;
  left: 0;
  border-width: 1px 0 0 1px;
}

.corner-tr {
  top: 0;
  right: 0;
  border-width: 1px 1px 0 0;
}

.corner-bl {
  bottom: 0;
  left: 0;
  border-width: 0 0 1px 1px;
}

.corner-br {
  right: 0;
  bottom: 0;
  border-width: 0 1px 1px 0;
}

.hero-inner {
  position: relative;
  z-index: 4;
  display: flex;
  flex: 1;
  flex-direction: column;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-topline {
  display: flex;
  align-items: center;
  gap: 18px;
  padding-top: 8px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow {
  color: var(--mint);
}

.topline-rule {
  width: 56px;
  height: 1px;
  background: var(--line-strong);
}

.topline-copy {
  color: var(--text-soft);
}

.topline-coord {
  margin-left: auto;
  color: var(--dim);
}

.hero-main {
  display: flex;
  flex: 1;
  align-items: center;
  width: 100%;
  padding: clamp(50px, 9vh, 110px) 0 clamp(34px, 6vh, 70px);
}

.hero-copy {
  width: 100%;
  max-width: 1180px;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-bottom: 27px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.19em;
  text-transform: uppercase;
}

.hero-kicker span {
  color: var(--dim);
}

.hero-title {
  max-width: 100%;
  font-size: clamp(3.3rem, 10.1vw, 9.9rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.97;
}

.hero-title-line {
  display: block;
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
}

.hero-title-accent {
  color: transparent;
  background: linear-gradient(105deg, #ecfff8 2%, #a9ffe0 53%, #d8ff6f 108%);
  -webkit-background-clip: text;
  background-clip: text;
  filter: drop-shadow(0 0 26px rgba(157, 255, 217, 0.08));
}

.title-caret {
  display: inline-block;
  width: 0.045em;
  height: 0.52em;
  margin-left: 0.09em;
  background: var(--mint);
  animation: caretBlink 1.15s steps(2, start) infinite;
}

.hero-intro-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: clamp(30px, 7vw, 110px);
  max-width: 1020px;
  margin-top: clamp(32px, 5vh, 52px);
}

.hero-description {
  max-width: 455px;
  color: var(--text-soft);
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.95;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
  min-width: max-content;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 4px 0;
  color: var(--text-soft);
  font-size: 11px;
  letter-spacing: 0.06em;
  transition: color 0.25s ease;
}

.text-link-line {
  display: block;
  width: 38px;
  height: 1px;
  background: var(--line-strong);
  transition:
    width 0.35s var(--ease-out),
    background-color 0.35s ease;
}

.text-link:hover {
  color: var(--mint);
}

.text-link:hover .text-link-line {
  width: 58px;
  background: var(--mint);
}

.hero-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 30px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero-hud {
  display: flex;
  align-items: center;
  gap: 0;
}

.hud-cell {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 122px;
  padding: 0 24px;
  border-left: 1px solid var(--line);
}

.hud-cell:first-child {
  padding-left: 0;
  border-left: 0;
}

.hud-cell-wide {
  min-width: 240px;
}

.hud-label {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.15em;
}

.hud-value {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.hud-dot {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px var(--mint);
}

.hud-hint {
  color: var(--muted);
}

.hud-gesture {
  position: relative;
  display: inline-block;
  width: 40px;
  height: 12px;
  margin-left: 7px;
  border-top: 1px solid rgba(157, 255, 217, 0.22);
}

.hud-gesture::after {
  position: absolute;
  top: -3px;
  left: 0;
  width: 6px;
  height: 6px;
  content: "";
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px rgba(157, 255, 217, 0.7);
  animation: gesture 3.4s var(--ease-out) infinite;
}

.scroll-cue {
  display: inline-flex;
  align-items: center;
  gap: 13px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.16em;
  transition: color 0.25s ease;
}

.scroll-cue:hover {
  color: var(--mint);
}

.scroll-cue-line {
  position: relative;
  display: block;
  width: 1px;
  height: 34px;
  overflow: hidden;
  background: var(--line);
}

.scroll-cue-line::after {
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  content: "";
  background: var(--mint);
  animation: scrollLine 2.4s ease-in-out infinite;
}

.hero-rail {
  position: absolute;
  top: 50%;
  right: 22px;
  z-index: 4;
  display: flex;
  align-items: center;
  gap: 15px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  transform: translateY(-50%);
  writing-mode: vertical-rl;
}

.rail-line {
  width: 1px;
  height: 54px;
  background: var(--line-strong);
}

/* ============================== Signal strip ============================== */

.signal-strip {
  position: relative;
  z-index: 2;
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #070a0b;
  padding: 15px 0;
}

.signal-track {
  display: flex;
  align-items: center;
  gap: 28px;
  width: max-content;
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: marquee 38s linear infinite;
}

.signal-track i {
  color: var(--mint);
  font-size: 8px;
  font-style: normal;
}

.signal-track span {
  white-space: nowrap;
}

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

/* ============================== Shared section ============================== */

.section {
  position: relative;
  padding: clamp(100px, 13vw, 190px) var(--page-pad);
  border-bottom: 1px solid rgba(226, 255, 244, 0.07);
}

.section-shell {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-rail {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.section-index {
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.section-label {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.17em;
  line-height: 1.3;
  text-transform: uppercase;
}

.display-title {
  max-width: 1050px;
  font-size: clamp(2.45rem, 5vw, 5.6rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 1.08;
}

.muted {
  color: var(--muted);
}

.section-intro {
  max-width: 410px;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.9;
}

/* ============================== Positioning ============================== */

.positioning {
  overflow: hidden;
  background:
    radial-gradient(ellipse 65% 45% at 82% 22%, rgba(35, 87, 76, 0.1), transparent 75%),
    var(--bg);
}

.positioning-lead {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  gap: clamp(40px, 8vw, 140px);
  align-items: end;
}

.positioning-copy {
  padding-bottom: 8px;
}

.positioning-copy p {
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.95;
}

.positioning-copy .small-copy {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: clamp(70px, 9vw, 118px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.metric {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 185px;
  padding: 30px 26px 24px;
  border-left: 1px solid var(--line);
  overflow: hidden;
}

.metric:first-child {
  border-left: 0;
  padding-left: 0;
}

.metric::before {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 0;
  content: "";
  background: linear-gradient(to top, rgba(157, 255, 217, 0.06), transparent);
  transition: height 0.5s var(--ease-out);
}

.metric:hover::before {
  height: 100%;
}

.metric-value {
  position: relative;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: clamp(2.4rem, 4vw, 4.4rem);
  font-weight: 300;
  letter-spacing: -0.08em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.metric-unit {
  margin-left: 2px;
  color: var(--mint);
  font-size: 0.4em;
  letter-spacing: -0.04em;
}

.metric-infinity {
  color: var(--mint);
  font-size: clamp(2.8rem, 4.4vw, 4.8rem);
}

.metric-label {
  position: relative;
  margin-top: 24px;
  color: var(--text-soft);
  font-size: 12px;
}

.metric-en {
  position: relative;
  margin-top: 6px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.15em;
}

.ghost-word {
  position: absolute;
  right: -2%;
  bottom: -9%;
  z-index: 0;
  color: transparent;
  font-family: var(--font-sans);
  font-size: clamp(10rem, 23vw, 29rem);
  font-weight: 600;
  letter-spacing: -0.1em;
  line-height: 0.8;
  pointer-events: none;
  -webkit-text-stroke: 1px rgba(226, 255, 244, 0.035);
}

.positioning .section-shell > .section-rail,
.positioning .section-shell > .positioning-lead,
.positioning .section-shell > .metrics {
  position: relative;
  z-index: 1;
}

/* ============================== Capabilities ============================== */

.capabilities {
  background:
    radial-gradient(ellipse 55% 40% at 50% 99%, rgba(33, 88, 77, 0.12), transparent 72%),
    var(--bg-deep);
}

.section-heading {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px;
  align-items: end;
}

.section-heading .section-rail {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.section-heading .display-title {
  grid-column: 1 / span 8;
}

.section-heading .section-intro {
  grid-column: 9 / -1;
  justify-self: end;
  padding-bottom: 8px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: clamp(52px, 7vw, 80px);
}

.service-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--panel);
  transition:
    border-color 0.5s ease,
    transform 0.55s var(--ease-out),
    background-color 0.5s ease;
}

.service-card::before {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 4;
  height: 1px;
  content: "";
  background: linear-gradient(90deg, transparent, var(--mint), transparent);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.service-card:hover {
  border-color: rgba(157, 255, 217, 0.32);
  background: #080d0e;
  transform: translateY(-5px);
}

.service-card:hover::before {
  opacity: 0.8;
}

.service-visual {
  position: relative;
  height: clamp(250px, 21vw, 330px);
  min-height: 250px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 50% 50%, rgba(36, 86, 78, 0.18), transparent 70%),
    #020405;
}

.service-visual .laser-canvas,
.method-visual .laser-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transition: transform 1.2s var(--ease-out);
}

.service-card:hover .service-visual .laser-canvas {
  transform: scale(1.035);
}

.visual-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(2, 4, 5, 0.12), transparent 33%, rgba(2, 4, 5, 0.7)),
    radial-gradient(ellipse at center, transparent 35%, rgba(2, 4, 5, 0.38));
}

.visual-grid {
  position: absolute;
  inset: 0;
  opacity: 0.35;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(201, 255, 238, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201, 255, 238, 0.07) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: linear-gradient(to bottom, #000, transparent 85%);
  mask-image: linear-gradient(to bottom, #000, transparent 85%);
}

.visual-topline {
  position: absolute;
  top: 16px;
  right: 17px;
  left: 17px;
  display: flex;
  justify-content: space-between;
  color: rgba(210, 255, 240, 0.42);
  font-family: var(--font-mono);
  font-size: 6.5px;
  letter-spacing: 0.14em;
}

.visual-cross {
  position: absolute;
  width: 11px;
  height: 11px;
  opacity: 0.5;
}

.visual-cross::before,
.visual-cross::after {
  position: absolute;
  content: "";
  background: rgba(218, 255, 240, 0.48);
}

.visual-cross::before {
  top: 5px;
  left: 0;
  width: 11px;
  height: 1px;
}

.visual-cross::after {
  top: 0;
  left: 5px;
  width: 1px;
  height: 11px;
}

.visual-cross-a {
  right: 16px;
  bottom: 16px;
}

.visual-cross-b {
  bottom: 16px;
  left: 16px;
}

.service-content {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 26px 25px 25px;
}

.service-meta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.service-number {
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
}

.service-en {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.14em;
}

.service-arrow {
  margin-left: auto;
  color: var(--muted);
  font-size: 17px;
  transition:
    color 0.3s ease,
    transform 0.35s var(--ease-out);
}

.service-card:hover .service-arrow {
  color: var(--mint);
  transform: translate(2px, -2px);
}

.service-content h3 {
  margin-top: 21px;
  font-size: clamp(24px, 2.3vw, 34px);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 1.1;
}

.service-content p {
  margin-top: 16px;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.9;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 24px;
}

.tag-list li {
  padding: 6px 8px;
  border: 1px solid rgba(226, 255, 244, 0.1);
  color: var(--text-soft);
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.05em;
  line-height: 1.3;
  white-space: nowrap;
  transition:
    border-color 0.3s ease,
    color 0.3s ease;
}

.service-card:hover .tag-list li {
  border-color: rgba(157, 255, 217, 0.18);
}

/* ============================== Method ============================== */

.method {
  background:
    linear-gradient(115deg, rgba(12, 23, 21, 0.45), transparent 52%),
    #06090a;
}

.method-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(50px, 8vw, 130px);
  align-items: start;
}

.method-left {
  position: sticky;
  top: 120px;
}

.method-left .display-title {
  font-size: clamp(2.25rem, 4.55vw, 4.8rem);
}

.method-copy {
  max-width: 430px;
  margin-top: 30px;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.95;
}

.method-visual {
  position: relative;
  height: clamp(300px, 31vw, 440px);
  margin-top: 44px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(ellipse at 50% 45%, rgba(55, 39, 77, 0.22), transparent 62%),
    #030506;
}

.method-visual-top {
  position: absolute;
  top: 16px;
  right: 17px;
  left: 17px;
  display: flex;
  justify-content: space-between;
  color: rgba(210, 255, 240, 0.42);
  font-family: var(--font-mono);
  font-size: 6.5px;
  letter-spacing: 0.14em;
}

.method-visual-bottom {
  position: absolute;
  right: 18px;
  bottom: 14px;
  left: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(210, 255, 240, 0.48);
  font-family: var(--font-mono);
  font-size: 6.5px;
  letter-spacing: 0.13em;
}

.mini-line {
  flex: 1;
  height: 1px;
  background: rgba(210, 255, 240, 0.13);
}

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

.process-row {
  position: relative;
  display: grid;
  grid-template-columns: 52px minmax(0, 1fr) 18px;
  gap: 20px;
  padding: 34px 12px 34px 0;
  border-bottom: 1px solid var(--line);
  transition:
    background-color 0.35s ease,
    padding-left 0.4s var(--ease-out);
}

.process-row:hover {
  padding-left: 14px;
  background: linear-gradient(90deg, rgba(157, 255, 217, 0.035), transparent 72%);
}

.process-index {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.1em;
  transition: color 0.3s ease;
}

.process-row:hover .process-index {
  color: var(--mint);
}

.process-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
}

.process-head h3 {
  font-size: clamp(21px, 2.2vw, 29px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.2;
  transition: color 0.3s ease;
}

.process-row:hover .process-head h3 {
  color: var(--mint-bright);
}

.process-en {
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.16em;
}

.process-body > p {
  max-width: 580px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.9;
}

.process-output {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 17px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7.5px;
  letter-spacing: 0.08em;
}

.process-output span {
  color: var(--mint);
}

.process-mark {
  align-self: center;
  width: 9px;
  height: 9px;
  border: 1px solid var(--line-strong);
  transition:
    border-color 0.3s ease,
    background-color 0.3s ease;
}

.process-row:hover .process-mark {
  border-color: var(--mint);
  background: var(--mint);
}

/* ============================== Principles ============================== */

.principles {
  background:
    radial-gradient(ellipse 55% 35% at 15% 15%, rgba(40, 92, 82, 0.09), transparent 72%),
    var(--bg);
}

.principles-head {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 28px;
  align-items: end;
}

.principles-head .section-rail {
  grid-column: 1 / -1;
  margin-bottom: 0;
}

.principles-head .display-title {
  grid-column: 1 / span 8;
}

.principles-head .section-intro {
  grid-column: 9 / -1;
  justify-self: end;
  padding-bottom: 8px;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: clamp(58px, 7vw, 86px);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.principle-card {
  position: relative;
  min-height: 270px;
  padding: 31px 32px 34px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  transition: background-color 0.5s ease;
}

.principle-card::after {
  position: absolute;
  right: -40%;
  bottom: -60%;
  width: 70%;
  height: 120%;
  content: "";
  background: radial-gradient(ellipse, rgba(157, 255, 217, 0.08), transparent 68%);
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.principle-card:hover {
  background: rgba(255, 255, 255, 0.012);
}

.principle-card:hover::after {
  opacity: 1;
}

.principle-icon {
  display: block;
  width: 37px;
  height: 37px;
  color: var(--mint);
  opacity: 0.8;
}

.principle-icon svg {
  width: 100%;
  height: 100%;
}

.principle-index {
  position: absolute;
  top: 34px;
  right: 32px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.14em;
}

.principle-card h3 {
  margin-top: 27px;
  font-size: clamp(21px, 2vw, 27px);
  font-weight: 500;
  letter-spacing: -0.04em;
}

.principle-card p {
  max-width: 420px;
  margin-top: 13px;
  color: var(--muted);
  font-size: 12.5px;
  font-weight: 300;
  line-height: 1.9;
}

.capability-index {
  margin-top: clamp(64px, 8vw, 100px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.capability-index-head {
  display: flex;
  justify-content: space-between;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

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

.capability-index-grid span {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 58px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 11.5px;
  font-weight: 300;
}

.capability-index-grid span:nth-child(4n + 1) {
  padding-left: 0;
}

.capability-index-grid span:not(:nth-child(4n + 1)) {
  padding-left: 22px;
}

.capability-index-grid span:nth-last-child(-n + 4) {
  border-bottom: 0;
}

.capability-index-grid i {
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 7px;
  font-style: normal;
  letter-spacing: 0.08em;
}

.about-strip {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  margin-top: clamp(70px, 9vw, 110px);
  padding: 38px 42px;
  border: 1px solid var(--line);
  background:
    linear-gradient(115deg, rgba(157, 255, 217, 0.045), transparent 52%),
    rgba(255, 255, 255, 0.012);
  overflow: hidden;
}

.about-strip::before {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 28%;
  width: 1px;
  content: "";
  background: linear-gradient(to bottom, transparent, rgba(157, 255, 217, 0.16), transparent);
}

.about-strip-copy {
  max-width: 720px;
}

.about-strip-copy p {
  margin-top: 13px;
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 300;
  line-height: 1.9;
}

.about-strip-seal {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 112px;
  height: 112px;
  flex: 0 0 auto;
  border: 1px solid rgba(157, 255, 217, 0.32);
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.12em;
  line-height: 1.12;
  transform: rotate(-7deg);
}

.about-strip-seal::before {
  position: absolute;
  inset: 5px;
  content: "";
  border: 1px solid rgba(157, 255, 217, 0.15);
}

.about-strip-seal small {
  margin-top: 8px;
  color: var(--dim);
  font-size: 6.5px;
  letter-spacing: 0.16em;
}

/* ============================== Contact ============================== */

.contact {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse 45% 55% at 75% 50%, rgba(41, 99, 83, 0.16), transparent 72%),
    #040607;
}

.contact-glow {
  position: absolute;
  top: 45%;
  left: 70%;
  width: 60vw;
  height: 60vw;
  max-width: 820px;
  max-height: 820px;
  border: 1px solid rgba(157, 255, 217, 0.08);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.contact-glow::before,
.contact-glow::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(157, 255, 217, 0.055);
  border-radius: 50%;
}

.contact-glow::before {
  inset: 9%;
}

.contact-glow::after {
  inset: 22%;
}

.contact-shell {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 0.78fr);
  gap: clamp(50px, 9vw, 150px);
  align-items: end;
}

.contact-intro .section-rail {
  margin-bottom: clamp(25px, 3vw, 38px);
}

.contact-title {
  font-size: clamp(3rem, 5.5vw, 6.1rem);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 1.02;
}

.contact-copy {
  max-width: 450px;
  margin-top: 30px;
  color: var(--text-soft);
  font-size: 13.5px;
  font-weight: 300;
  line-height: 1.95;
}

.contact-details {
  max-width: 480px;
  margin-top: 38px;
  border-top: 1px solid var(--line);
}

.contact-detail {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  color: var(--text-soft);
  font-size: 12px;
}

.contact-detail a {
  transition: color 0.25s ease;
}

.contact-detail a:hover {
  color: var(--mint);
}

.contact-signal {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 26px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.1em;
}

.contact-panel {
  position: relative;
  padding: 24px;
  border: 1px solid var(--line-strong);
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.038), transparent 35%),
    rgba(7, 12, 12, 0.76);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.26);
}

.contact-panel::before,
.contact-panel::after {
  position: absolute;
  width: 14px;
  height: 14px;
  content: "";
  border-color: var(--mint);
  border-style: solid;
  opacity: 0.55;
}

.contact-panel::before {
  top: -1px;
  left: -1px;
  border-width: 1px 0 0 1px;
}

.contact-panel::after {
  right: -1px;
  bottom: -1px;
  border-width: 0 1px 1px 0;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.panel-status {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.13em;
}

.panel-status::before {
  width: 4px;
  height: 4px;
  content: "";
  border-radius: 50%;
  background: var(--mint);
  box-shadow: 0 0 8px var(--mint);
}

.contact-form {
  padding-top: 22px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field {
  display: block;
  margin-bottom: 15px;
}

.field-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 9px;
  color: #9ba7a2;
  font-family: var(--font-mono);
  font-size: 9.5px;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.field-label em {
  color: var(--mint);
}

.field input,
.field select,
.field textarea {
  display: block;
  width: 100%;
  border: 1px solid rgba(226, 255, 244, 0.13);
  border-radius: 1px;
  background: rgba(3, 6, 6, 0.65);
  color: var(--text);
  font-size: 12.5px;
  font-weight: 300;
  letter-spacing: 0.02em;
  transition:
    border-color 0.3s ease,
    background-color 0.3s ease;
}

.field input,
.field select {
  height: 49px;
  padding: 0 14px;
}

.field textarea {
  min-height: 100px;
  padding: 12px 14px;
  line-height: 1.7;
  resize: vertical;
}

.field input::placeholder,
.field textarea::placeholder {
  color: #4f5b56;
}

.field input:hover,
.field select:hover,
.field textarea:hover {
  border-color: rgba(226, 255, 244, 0.24);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: rgba(157, 255, 217, 0.65);
  background: rgba(8, 16, 14, 0.9);
  outline: none;
}

.field.is-invalid input,
.field.is-invalid textarea {
  border-color: rgba(255, 158, 142, 0.7);
}

.select-wrap {
  position: relative;
  display: block;
}

.field select {
  appearance: none;
  padding-right: 38px;
  cursor: pointer;
}

.field select option {
  color: var(--text);
  background: #091010;
}

.select-arrow {
  position: absolute;
  top: 50%;
  right: 14px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 11px;
  pointer-events: none;
  transform: translateY(-50%);
}

.form-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  margin-top: 4px;
}

.form-note {
  max-width: 230px;
  color: var(--dim);
  font-size: 9px;
  line-height: 1.65;
}

.form-submit {
  min-width: 160px;
  min-height: 49px;
  padding: 0 20px;
  font-size: 11px;
  gap: 18px;
}

.form-status {
  min-height: 19px;
  margin-top: 12px;
  color: var(--mint);
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: 0.06em;
  line-height: 1.6;
}

.form-status.is-error {
  color: var(--danger);
}

/* ============================== Footer ============================== */

.site-footer {
  padding: 68px var(--page-pad) 26px;
  background: #030405;
}

.footer-shell {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-brand {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  padding-bottom: 46px;
  border-bottom: 1px solid var(--line);
}

.footer-brand p {
  max-width: 360px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.09em;
  line-height: 1.9;
  text-align: right;
}

.footer-links {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 30px;
  max-width: 680px;
  margin: 48px 0 60px auto;
}

.footer-col {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 9px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 300;
}

.footer-col a {
  transition: color 0.25s ease;
}

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

.footer-title {
  margin-bottom: 8px;
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 7px;
  letter-spacing: 0.16em;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: 0.07em;
}

.footer-coord {
  color: #46504c;
}

.footer-icp {
  color: var(--dim);
  text-decoration: underline;
  text-decoration-color: rgba(226, 255, 244, 0.16);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition:
    color 0.25s ease,
    text-decoration-color 0.25s ease;
}

.footer-icp:hover {
  color: var(--mint);
  text-decoration-color: var(--mint);
}

.back-to-top {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  transition: color 0.25s ease;
}

.back-to-top:hover {
  color: var(--mint);
}

/* ============================== Reveal & animation ============================== */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity 0.9s var(--ease-out),
    transform 0.9s var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

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

@keyframes brandPulse {
  0%,
  100% {
    opacity: 0.5;
  }
  50% {
    opacity: 1;
  }
}

@keyframes livePulse {
  0% {
    opacity: 0.7;
    transform: scale(0.65);
  }
  80%,
  100% {
    opacity: 0;
    transform: scale(1.55);
  }
}

@keyframes caretBlink {
  0%,
  48% {
    opacity: 1;
  }
  49%,
  100% {
    opacity: 0;
  }
}

@keyframes scanline {
  0% {
    transform: translateY(-120%);
  }
  100% {
    transform: translateY(520%);
  }
}

@keyframes gesture {
  0% {
    transform: translateX(0);
    opacity: 0;
  }
  12% {
    opacity: 1;
  }
  70% {
    opacity: 1;
  }
  100% {
    transform: translateX(34px);
    opacity: 0;
  }
}

@keyframes scrollLine {
  0% {
    transform: translateY(0);
  }
  65%,
  100% {
    transform: translateY(200%);
  }
}

@keyframes marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

/* ============================== Responsive ============================== */

@media (max-width: 1280px) {
  .header-clock {
    display: none;
  }

  .service-content {
    padding: 24px 21px 22px;
  }

  .service-content p {
    font-size: 12px;
  }
}

@media (max-width: 1080px) {
  :root {
    --header-height: 76px;
  }

  .desktop-nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-tools {
    gap: 13px;
  }

  .hero-rail {
    display: none;
  }

  .positioning-lead {
    grid-template-columns: 1fr;
    gap: 35px;
  }

  .positioning-copy {
    max-width: 620px;
  }

  .section-heading .display-title,
  .principles-head .display-title {
    grid-column: 1 / -1;
  }

  .section-heading .section-intro,
  .principles-head .section-intro {
    grid-column: 1 / -1;
    justify-self: start;
    max-width: 520px;
    padding-top: 23px;
  }

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

  .service-card {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .service-visual {
    height: 100%;
    min-height: 390px;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .service-content {
    padding: 30px 28px;
  }

  .service-content p {
    font-size: 12.5px;
  }

  .method-layout {
    grid-template-columns: 1fr;
    gap: 55px;
  }

  .method-left {
    position: static;
  }

  .method-copy {
    max-width: 600px;
  }

  .method-visual {
    max-width: 100%;
  }

  .process-body > p {
    max-width: 680px;
  }

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

  .capability-index-grid span:nth-child(4n + 1),
  .capability-index-grid span:not(:nth-child(4n + 1)) {
    padding-left: 0;
  }

  .capability-index-grid span:nth-child(even) {
    padding-left: 24px;
  }

  .capability-index-grid span:nth-last-child(-n + 4) {
    border-bottom: 1px solid var(--line);
  }

  .capability-index-grid span:nth-last-child(-n + 2) {
    border-bottom: 0;
  }

  .contact-shell {
    grid-template-columns: 1fr;
    gap: 55px;
    align-items: start;
  }

  .contact-intro {
    max-width: 720px;
  }

  .contact-panel {
    max-width: 660px;
  }
}

@media (max-width: 760px) {
  :root {
    --page-pad: 21px;
    --header-height: 68px;
  }

  .site-header {
    gap: 12px;
  }

  .brand {
    gap: 9px;
  }

  .brand-mark {
    width: 27px;
    height: 27px;
  }

  .brand-cn {
    font-size: 11px;
  }

  .brand-en {
    font-size: 6px;
  }

  .header-tools .button-compact {
    display: none;
  }

  .hero {
    min-height: 100vh;
    min-height: 100svh;
    padding-top: calc(var(--header-height) + 18px);
  }

  .frame-corners {
    inset: 10px;
  }

  .corner {
    width: 9px;
    height: 9px;
  }

  .hero-topline {
    gap: 10px;
    font-size: 6.5px;
  }

  .topline-rule {
    width: 24px;
  }

  .topline-copy {
    display: none;
  }

  .topline-coord {
    display: none;
  }

  .hero-main {
    padding: 44px 0 30px;
  }

  .hero-kicker {
    margin-bottom: 20px;
    font-size: 7.5px;
    letter-spacing: 0.15em;
  }

  .hero-title {
    font-size: clamp(2.85rem, 11.8vw, 5.6rem);
    letter-spacing: -0.075em;
    line-height: 0.96;
  }

  .hero-intro-row {
    display: block;
    margin-top: 30px;
  }

  .hero-description {
    max-width: 100%;
    font-size: 12.5px;
    line-height: 1.85;
  }

  .hero-actions {
    flex-direction: row;
    align-items: center;
    gap: 23px;
    margin-top: 26px;
  }

  .hero-actions .button {
    min-height: 48px;
    padding: 0 19px;
    font-size: 11px;
    gap: 18px;
  }

  .text-link {
    font-size: 10px;
  }

  .text-link-line {
    width: 24px;
  }

  .hero-footer {
    gap: 20px;
    padding-top: 18px;
  }

  .hero-hud {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 0;
    width: 100%;
  }

  .hud-cell {
    min-width: 0;
    padding: 0 15px;
  }

  .hud-cell:nth-child(3) {
    grid-column: 1 / -1;
    padding: 12px 0 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .hud-cell-wide {
    min-width: 0;
  }

  .hud-hint {
    font-size: 8px;
  }

  .scroll-cue {
    display: none;
  }

  .signal-strip {
    padding: 12px 0;
  }

  .signal-track {
    gap: 20px;
    font-size: 8px;
    animation-duration: 32s;
  }

  .section {
    padding-top: 92px;
    padding-bottom: 92px;
  }

  .display-title {
    font-size: clamp(2.25rem, 9vw, 3.6rem);
    line-height: 1.12;
  }

  .principles-head .display-title {
    font-size: clamp(1.6rem, 8vw, 3.3rem);
  }

  .metrics {
    grid-template-columns: 1fr 1fr;
    margin-top: 64px;
  }

  .metric {
    min-height: 155px;
    padding: 24px 18px 20px;
    border-bottom: 1px solid var(--line);
  }

  .metric:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }

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

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

  .metric-value {
    font-size: clamp(2.25rem, 10vw, 3.2rem);
  }

  .metric-label {
    margin-top: 18px;
    font-size: 11px;
  }

  .ghost-word {
    bottom: -4%;
    font-size: 44vw;
  }

  .service-card {
    display: flex;
  }

  .service-visual {
    height: 250px;
    min-height: 250px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .service-content {
    padding: 24px 21px 22px;
  }

  .service-content h3 {
    font-size: 28px;
  }

  .tag-list li {
    font-size: 7.5px;
  }

  .method-visual {
    height: 300px;
  }

  .process-row {
    grid-template-columns: 34px minmax(0, 1fr) 12px;
    gap: 12px;
    padding: 27px 0;
  }

  .process-row:hover {
    padding-left: 0;
  }

  .process-head {
    gap: 10px;
  }

  .process-head h3 {
    font-size: 21px;
  }

  .process-en {
    font-size: 6px;
    white-space: nowrap;
  }

  .process-body > p {
    font-size: 12px;
  }

  .process-output {
    font-size: 7px;
    gap: 7px;
  }

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

  .principle-card {
    min-height: 235px;
    padding: 27px 23px 28px;
  }

  .principle-index {
    top: 29px;
    right: 23px;
  }

  .principle-card h3 {
    font-size: 23px;
  }

  .capability-index-head {
    gap: 10px;
  }

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

  .capability-index-grid span,
  .capability-index-grid span:nth-child(even) {
    padding-left: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .capability-index-grid span:nth-last-child(-n + 2) {
    border-bottom: 1px solid var(--line);
  }

  .capability-index-grid span:last-child {
    border-bottom: 0;
  }

  .about-strip {
    align-items: flex-start;
    flex-direction: column;
    gap: 30px;
    padding: 27px 23px;
  }

  .about-strip::before {
    display: none;
  }

  .about-strip-seal {
    width: 90px;
    height: 90px;
    font-size: 13px;
  }

  .contact-title {
    font-size: clamp(2.8rem, 11.5vw, 4.5rem);
    line-height: 1.03;
  }

  .contact-copy {
    font-size: 12.5px;
  }

  .contact-panel {
    padding: 18px;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

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

  .form-note {
    order: 2;
    max-width: 100%;
  }

  .form-submit {
    width: 100%;
  }

  .footer-brand {
    flex-direction: column;
    gap: 22px;
    padding-bottom: 35px;
  }

  .footer-brand p {
    text-align: left;
  }

  .footer-links {
    grid-template-columns: 1fr 1fr;
    gap: 32px 20px;
    margin: 38px 0 45px;
  }

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

  .footer-bottom {
    flex-wrap: wrap;
    justify-content: flex-start;
    gap: 10px 20px;
    line-height: 1.7;
  }

  .footer-coord {
    display: none;
  }

  .back-to-top {
    width: 100%;
    margin-top: 4px;
  }
}

@media (max-width: 400px) {
  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero-title {
    font-size: 2.8rem;
  }

  .hud-cell {
    padding-right: 10px;
    padding-left: 10px;
  }

  .hud-cell:first-child {
    padding-left: 0;
  }
}

@media (max-width: 360px) {
  .contact-title {
    font-size: 2.3rem;
  }

  .principles-head .display-title {
    font-size: 1.5rem;
  }
}

@media (hover: none) {
  .service-card:hover {
    transform: none;
  }

  .hero-grid {
    opacity: 0.2;
  }
}

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

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

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

  .signal-track {
    animation: none;
  }
}