/* ============================================================
   ARGONIX — daylight systems / cyan-blue instrument
   ============================================================ */

@font-face {
  font-family: 'Archivo';
  src: url('/assets/fonts/archivo-latin.woff2') format('woff2');
  font-weight: 400 800;
  font-stretch: 75% 125%;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Instrument Sans';
  src: url('/assets/fonts/instrument-sans-latin.woff2') format('woff2');
  font-weight: 400 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/assets/fonts/plexmono-400-latin.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'IBM Plex Mono';
  src: url('/assets/fonts/plexmono-500-latin.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

:root {
  --ink: #072b4e;
  --ink-2: #062a4a;
  --ink-3: #041d34;
  --paper: #ffffff;
  --paper-2: #eaf4fc;
  --ice: #f3f8fd;
  --ice-2: #e7f2fb;
  --bone: #f7fbff;
  --bone-dim: rgba(226, 239, 250, 0.72);
  --muted: #4e6579;
  --line: rgba(7, 43, 78, 0.13);
  --line-strong: rgba(7, 43, 78, 0.28);
  --line-dark: rgba(226, 239, 250, 0.16);
  --accent: #0b5bc4;
  --accent-bright: #22d3e8;
  --accent-soft: #00b8d4;
  --cyan: #00c6e0;
  --cyan-bright: #35e0f2;
  --purple: #6d3bd1;
  --silver: #c9d6e2;
  --display: 'Archivo', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --body: 'Instrument Sans', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --mono: 'IBM Plex Mono', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', monospace;
  --gutter: clamp(20px, 4vw, 64px);
  --header-h: 76px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 1.0625rem;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

a {
  color: inherit;
}

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

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

h1,
h2,
h3 {
  font-family: var(--display);
  font-weight: 700;
  font-stretch: 105%;
  margin: 0;
  color: var(--ink);
}

h1 {
  font-size: clamp(3rem, 5.6vw, 5.8rem);
  line-height: 0.94;
  letter-spacing: -0.045em;
}

h2 {
  font-size: clamp(2rem, 3.4vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 600;
}

p {
  margin: 0;
}

.wrap {
  width: 100%;
  max-width: 1500px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap--wide {
  max-width: none;
  padding-inline: 0;
}

.section {
  padding-block: clamp(64px, 9vw, 128px);
}

.section[id] {
  scroll-margin-top: var(--header-h);
}

.rail-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.13em;
  line-height: 1.5;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
}

.section-head .rail-label,
.page-hero .rail-label {
  display: flex;
  align-items: center;
  gap: 11px;
}
.section-head .rail-label {
  align-self: start;
}
.section-head .rail-label::before,
.page-hero .rail-label::before {
  content: '';
  width: 20px;
  height: 2px;
  flex: none;
  background: linear-gradient(90deg, var(--cyan), var(--accent));
}

.section-intro {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.65;
  margin-top: 18px;
}

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 200;
  padding: 12px 18px;
  background: var(--ink);
  color: #fff;
  font-size: 0.9rem;
  text-decoration: none;
  transform: translateY(-160%);
  transition: transform 0.2s var(--ease);
}
.skip-link:focus {
  transform: none;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 22px;
  border: 1px solid var(--accent);
  border-radius: 2px;
  background: var(--accent);
  color: #fff;
  font-family: var(--body);
  font-size: 0.92rem;
  font-weight: 500;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.22s var(--ease), border-color 0.22s var(--ease), color 0.22s var(--ease);
}
.btn:hover {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.btn--ghost {
  background: rgba(255, 255, 255, 0.55);
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  background: #fff;
  border-color: var(--accent);
  color: var(--accent);
}
.btn--sm {
  min-height: 38px;
  padding: 0 16px;
  font-size: 0.84rem;
}
.btn--lg {
  min-height: 54px;
  padding: 0 28px;
  font-size: 0.98rem;
}

.text-link {
  display: inline-block;
  margin-top: 16px;
  color: var(--accent);
  font-size: 0.92rem;
  text-decoration: underline;
  text-decoration-color: rgba(11, 91, 196, 0.4);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.text-link:hover {
  color: var(--ink);
  text-decoration-color: var(--cyan);
}

/* ---------- header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(245, 250, 255, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s var(--ease);
}
.site-header::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--accent) 46%, var(--purple) 100%);
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
}
.header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  height: var(--header-h);
  padding-inline: var(--gutter);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ink);
  flex: none;
}
.brand-mark {
  width: auto;
  height: 36px;
  flex: none;
}
.brand-text {
  display: block;
}
.brand-name {
  display: block;
  font-family: var(--display);
  font-size: 15px;
  font-weight: 700;
  font-stretch: 115%;
  letter-spacing: 0.18em;
  line-height: 1.05;
  color: var(--ink);
}
.brand-sub {
  display: block;
  margin-top: 4px;
  font-family: var(--mono);
  font-size: 7px;
  letter-spacing: 0.16em;
  line-height: 1.2;
  text-transform: uppercase;
  color: var(--muted);
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.4vw, 34px);
  margin-left: auto;
}
.nav a {
  position: relative;
  padding: 4px 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--accent));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav a:hover,
.nav a[aria-current='page'] {
  color: var(--ink);
}
.nav a:hover::after,
.nav a[aria-current='page']::after {
  transform: scaleX(1);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 18px;
  flex: none;
}
.lang-switch {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--muted);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.lang-switch:hover {
  color: var(--accent);
  border-bottom-color: var(--cyan);
}
.lang-switch--lg {
  font-size: 0.85rem;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  background: none;
  border: 0;
  cursor: pointer;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
}
.menu-toggle-bars {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 18px;
}
.menu-toggle-bars i {
  display: block;
  height: 1px;
  background: var(--ink);
  transition: transform 0.25s var(--ease), opacity 0.25s;
}
.menu-toggle[aria-expanded='true'] .menu-toggle-bars i:first-child {
  transform: translateY(3px) rotate(45deg);
}
.menu-toggle[aria-expanded='true'] .menu-toggle-bars i:last-child {
  transform: translateY(-3px) rotate(-45deg);
}

.mobile-menu {
  border-top: 1px solid var(--line);
  background: var(--ice);
  padding: 20px var(--gutter) 32px;
  height: calc(100svh - var(--header-h));
  overflow-y: auto;
}
.mobile-menu[hidden] {
  display: none;
}
.mobile-menu nav {
  display: flex;
  flex-direction: column;
}
.mobile-menu nav a {
  font-family: var(--display);
  font-size: clamp(2rem, 8vw, 3rem);
  font-weight: 600;
  font-stretch: 105%;
  letter-spacing: -0.03em;
  line-height: 1.1;
  text-decoration: none;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}
.mobile-menu nav a:last-child {
  border-bottom: 1px solid var(--line);
}
.mobile-menu-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 32px;
}
body.nav-open {
  overflow: hidden;
}

/* ---------- hero ---------- */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
  min-height: calc(100svh - var(--header-h));
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f8fcff 0%, #eff7fd 58%, #e9f3fc 100%);
}
.hero-copy {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(40px, 6vh, 88px) clamp(24px, 4vw, 64px) clamp(24px, 4vh, 48px) var(--gutter);
  overflow: hidden;
}
.hero-copy::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(7, 43, 78, 0.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(7, 43, 78, 0.055) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(120% 95% at 12% 40%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 95% at 12% 40%, #000 0%, transparent 78%);
}
.hero-copy::after {
  content: '';
  position: absolute;
  width: 520px;
  height: 520px;
  right: -220px;
  bottom: -260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 198, 224, 0.16), rgba(0, 198, 224, 0) 68%);
  pointer-events: none;
}
.hero-copy-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}
.hero-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: clamp(20px, 2.8vh, 36px);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}
.hero-label::before {
  content: '';
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--accent));
  flex: none;
}
.hero h1 {
  max-width: 12ch;
  margin-bottom: clamp(20px, 3vh, 34px);
  color: var(--ink);
}
.hero-lede {
  max-width: 54ch;
  color: var(--muted);
  font-size: clamp(1rem, 1.15vw, 1.1rem);
  line-height: 1.62;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vh, 38px);
}
.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px 24px;
  margin: clamp(28px, 5vh, 64px) 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.hero-facts div {
  min-width: 0;
}
.hero-facts dt {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 4px;
}
.hero-facts dd {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.4;
  color: var(--ink);
}

.hero-panel {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 600px;
  background: linear-gradient(168deg, #ffffff 0%, #f0f9fe 52%, #e2f1fb 100%);
  color: var(--ink);
  border-left: 1px solid var(--line);
  position: relative;
  overflow: hidden;
}
.hero-panel::before {
  content: '';
  position: absolute;
  width: 540px;
  height: 540px;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0, 198, 224, 0.18) 0%, rgba(0, 198, 224, 0) 66%);
  pointer-events: none;
}
.panel-bar,
.panel-foot {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  flex: none;
}
.panel-bar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}
.panel-foot {
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.45);
}
.panel-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}
.panel-status i {
  width: 6px;
  height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  box-shadow: 0 0 0 3px rgba(0, 198, 224, 0.14);
  animation: status-pulse 3.2s ease-in-out infinite;
}
@keyframes status-pulse {
  0%,
  100% {
    opacity: 0.45;
  }
  50% {
    opacity: 1;
  }
}
.panel-stage {
  flex: 1;
  min-height: 0;
  position: relative;
}
.topology {
  position: absolute;
  inset: 8px;
  width: calc(100% - 16px);
  height: calc(100% - 16px);
  display: block;
  overflow: hidden;
  color: var(--accent);
}
.topology text {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.2em;
  fill: var(--muted);
}
.topology .flow {
  stroke-dasharray: 2 8;
  animation: flow-dash 7s linear infinite;
}
@keyframes flow-dash {
  to {
    stroke-dashoffset: -140;
  }
}
.topology .packet {
  opacity: 0.9;
}
.topology .core-glow {
  animation: core-glow 7s ease-in-out infinite;
}
@keyframes core-glow {
  0%,
  100% {
    opacity: 0.65;
  }
  50% {
    opacity: 1;
  }
}
.topology .core-ring {
  transform-origin: 300px 380px;
  animation: ring-turn 44s linear infinite;
}
@keyframes ring-turn {
  to {
    transform: rotate(360deg);
  }
}
.topology .scanline {
  animation: scan 9s cubic-bezier(0.45, 0, 0.55, 1) infinite;
}
@keyframes scan {
  0% {
    transform: translateY(20px);
    opacity: 0;
  }
  12% {
    opacity: 0.75;
  }
  88% {
    opacity: 0.75;
  }
  100% {
    transform: translateY(740px);
    opacity: 0;
  }
}
.topology .orbit-layer,
.topology .node-layer {
  transition: transform 0.5s var(--ease);
}
.topology .orbit-layer {
  transform: translate(calc(var(--mx, 0) * 9px), calc(var(--my, 0) * 9px));
}
.topology .node-layer {
  transform: translate(calc(var(--mx, 0) * -5px), calc(var(--my, 0) * -5px));
}

.hero-copy-inner > * {
  animation: rise 0.85s var(--ease) both;
}
.hero-copy-inner > :nth-child(2) {
  animation-delay: 0.06s;
}
.hero-copy-inner > :nth-child(3) {
  animation-delay: 0.12s;
}
.hero-copy-inner > :nth-child(4) {
  animation-delay: 0.18s;
}
.hero-copy-inner > :nth-child(5) {
  animation-delay: 0.24s;
}
@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- section head ---------- */
.section-head {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
  gap: clamp(24px, 4vw, 64px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
  margin-bottom: clamp(40px, 5vw, 76px);
}
.section-head-main h2 {
  max-width: 20ch;
  margin-bottom: 0;
}
.section-head-main .section-intro {
  margin-top: 22px;
}

/* ---------- capabilities ---------- */
.service-index {
  list-style: none;
  margin: 0;
  padding: 0;
  border-bottom: 1px solid var(--line);
}
.service-index li {
  border-top: 1px solid var(--line);
}
.service-index a {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 0.95fr) minmax(0, 1.35fr) 52px;
  gap: clamp(16px, 3vw, 44px);
  align-items: center;
  padding: 26px 0;
  text-decoration: none;
  color: var(--ink);
}
.service-index a::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), var(--accent));
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.3s var(--ease);
}
.service-index a:hover::before {
  transform: scaleY(1);
}
.si-no {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.si-title {
  font-family: var(--display);
  font-size: clamp(1.25rem, 1.7vw, 1.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
  transition: color 0.22s var(--ease);
}
.si-desc {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.55;
  max-width: 54ch;
}
.si-icon {
  justify-self: end;
  width: 42px;
  height: 42px;
  color: var(--muted);
  opacity: 0.55;
  transition: transform 0.3s var(--ease), color 0.22s, opacity 0.22s;
}
.si-icon svg {
  width: 100%;
  height: 100%;
}
.service-index a:hover .si-title {
  color: var(--accent);
}
.service-index a:hover .si-icon {
  color: var(--accent);
  opacity: 1;
  transform: translateX(5px);
}

/* ---------- approach ---------- */
.approach {
  background: linear-gradient(180deg, #eaf4fc 0%, #f2f9fe 100%);
  border-block: 1px solid var(--line);
}
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}
.steps li {
  border-left: 1px solid var(--line);
  padding: 28px 24px 8px;
}
.steps li:first-child {
  border-left: 0;
  padding-left: 0;
}
.step-no {
  display: block;
  margin-bottom: 22px;
  font-family: var(--display);
  font-size: clamp(2.4rem, 3.8vw, 3.8rem);
  font-weight: 700;
  line-height: 0.9;
  letter-spacing: -0.04em;
  color: rgba(11, 91, 196, 0.07);
  -webkit-text-stroke: 1px rgba(11, 91, 196, 0.42);
}
.steps h3 {
  color: var(--ink);
  margin-bottom: 12px;
}
.steps p {
  max-width: 30ch;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

/* ---------- strengths / split ---------- */
.split {
  display: grid;
  grid-template-columns: minmax(0, 4.5fr) minmax(0, 7fr);
  gap: clamp(32px, 6vw, 96px);
  align-items: start;
}
.split-side h2 {
  margin: 18px 0 0;
  max-width: 16ch;
}
.split-side .section-intro {
  margin-top: 18px;
}
.spec-list {
  margin: 0;
}
.spec-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 2fr);
  gap: 24px;
  padding: 22px 0;
  border-top: 1px solid var(--line);
}
.spec-list > div:last-child {
  border-bottom: 1px solid var(--line);
}
.spec-list dt {
  font-family: var(--display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
}
.spec-list dd {
  margin: 0;
  color: var(--muted);
  font-size: 0.96rem;
  line-height: 1.6;
}

/* ---------- coverage ---------- */
.coverage {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0 clamp(24px, 3vw, 48px);
}
.coverage li {
  border-top: 1px solid var(--line);
  padding: 22px 0 26px;
}
.coverage-region {
  display: block;
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}
.coverage-note {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.87rem;
  line-height: 1.5;
}
.coverage-foot {
  margin-top: 28px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  line-height: 1.6;
}

/* ---------- image band ---------- */
.image-band {
  position: relative;
  margin: 0;
  overflow: hidden;
  background: #dceaf6;
  height: clamp(320px, 46vw, 580px);
}
.image-band--inset {
  height: clamp(270px, 38vw, 500px);
  margin-top: clamp(32px, 4vw, 56px);
}
.image-band img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: saturate(0.94) contrast(1.02);
}
.image-band-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 29, 52, 0.02) 0%, rgba(4, 29, 52, 0.06) 42%, rgba(4, 29, 52, 0.82) 100%),
    linear-gradient(90deg, rgba(7, 60, 110, 0.24) 0%, rgba(7, 60, 110, 0) 58%);
}
.image-band figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  padding: 24px var(--gutter) 28px;
  color: #fff;
}
.fig-label {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.72);
}
.fig-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--cyan-bright);
  flex: none;
}
.fig-caption {
  max-width: 48ch;
  font-family: var(--display);
  font-size: clamp(1.15rem, 2vw, 1.7rem);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.2;
  text-align: right;
  color: #fff;
}

/* ---------- CTA ---------- */
.cta-section {
  border-top: 1px solid var(--line);
}
.cta-section--plain {
  background: var(--ice);
  border-top: 1px solid var(--line);
}
.cta-section--brand {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: linear-gradient(118deg, #083a6b 0%, #0b5bc4 52%, #0e74b8 100%);
  border-top: 0;
}
.cta-section--brand::before {
  content: '';
  position: absolute;
  width: 780px;
  height: 780px;
  right: -220px;
  top: -420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 224, 242, 0.34) 0%, rgba(53, 224, 242, 0) 68%);
  pointer-events: none;
}
.cta-section--brand::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(90% 120% at 80% 0%, #000, transparent 72%);
  -webkit-mask-image: radial-gradient(90% 120% at 80% 0%, #000, transparent 72%);
}
.cta-section--brand .wrap {
  position: relative;
  z-index: 1;
}
.cta-section--brand h2 {
  color: #fff;
}
.cta-section--brand .rail-label {
  color: rgba(255, 255, 255, 0.72);
}
.cta-section--brand .rail-label::before {
  background: rgba(255, 255, 255, 0.5);
}
.cta-section--brand .section-intro {
  color: rgba(255, 255, 255, 0.82);
}
.cta-section--brand .btn {
  background: #fff;
  border-color: #fff;
  color: var(--ink);
}
.cta-section--brand .btn:hover {
  background: var(--cyan-bright);
  border-color: var(--cyan-bright);
  color: var(--ink);
}
.cta-section--brand .cta-alt {
  color: rgba(255, 255, 255, 0.7);
}
.cta-section--brand .cta-alt a {
  color: #fff;
  text-decoration-color: var(--cyan-bright);
}
.cta-section--brand .cta-alt a:hover {
  color: var(--cyan-bright);
}

.cta-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(32px, 6vw, 96px);
  align-items: end;
}
.cta-copy h2 {
  max-width: 16ch;
  margin: 20px 0 0;
}
.cta-section--plain .cta-copy h2 {
  margin-top: 0;
}
.cta-copy .section-intro {
  max-width: 56ch;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px 26px;
  margin-top: 34px;
}
.cta-alt {
  font-size: 0.85rem;
  color: var(--muted);
}
.cta-alt a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 4px;
}
.cta-alt a:hover {
  color: var(--accent);
}

.cta-emblem {
  position: relative;
  display: grid;
  place-items: center;
  width: 230px;
  height: 230px;
  flex: none;
}
.cta-emblem-ring {
  position: absolute;
  inset: 0;
  border: 1px dashed rgba(255, 255, 255, 0.32);
  border-radius: 50%;
  animation: ring-turn 60s linear infinite;
}
.cta-emblem::before {
  content: '';
  position: absolute;
  inset: 18px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
}
.cta-emblem-plate {
  position: relative;
  display: grid;
  place-items: center;
  width: 172px;
  height: 130px;
  padding: 16px 20px;
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 24px 48px rgba(3, 25, 47, 0.28);
}
.cta-emblem-plate img {
  width: 100%;
  height: auto;
}

/* ---------- footer ---------- */
.site-footer {
  position: relative;
  background: radial-gradient(90% 130% at 82% -10%, rgba(0, 198, 224, 0.16) 0%, rgba(0, 198, 224, 0) 55%),
    var(--ink-2);
  color: var(--bone);
  padding: clamp(56px, 7vw, 96px) var(--gutter) 24px;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--accent) 52%, var(--purple));
}
.footer-top,
.footer-word,
.footer-legal {
  position: relative;
  max-width: 1500px;
  margin-inline: auto;
}
.footer-top {
  display: grid;
  grid-template-columns: minmax(0, 4fr) repeat(3, minmax(0, 2.4fr));
  gap: clamp(28px, 4vw, 56px);
}
.brand-plate {
  display: inline-block;
  padding: 14px 18px;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 16px 34px rgba(3, 22, 40, 0.24);
}
.brand-plate img {
  display: block;
  width: 118px;
  height: auto;
}
.footer-statement {
  max-width: 22ch;
  margin-top: 24px;
  font-family: var(--display);
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--bone);
}
.footer-col h2 {
  margin: 0 0 16px;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--bone-dim);
}
.footer-col a,
.footer-col span {
  display: block;
  margin-bottom: 9px;
  color: rgba(226, 239, 250, 0.72);
  font-size: 0.9rem;
  line-height: 1.45;
  text-decoration: none;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: #fff;
}
.footer-word {
  margin-top: clamp(48px, 7vw, 90px);
  font-family: var(--display);
  font-size: clamp(4rem, 15.5vw, 15rem);
  font-weight: 700;
  font-stretch: 115%;
  line-height: 0.78;
  letter-spacing: -0.055em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(126, 192, 230, 0.3);
  white-space: nowrap;
  overflow: hidden;
}
.footer-legal {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  margin-top: clamp(24px, 3vw, 40px);
  padding-top: 18px;
  border-top: 1px solid var(--line-dark);
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  line-height: 1.6;
  color: rgba(226, 239, 250, 0.62);
}
.footer-legal-note {
  display: flex;
  align-items: center;
  gap: 22px;
  white-space: nowrap;
}
.footer-legal-note a {
  color: rgba(226, 239, 250, 0.68);
  text-decoration: none;
}
.footer-legal-note a:hover {
  color: #fff;
}

/* ---------- inner page hero ---------- */
.page-hero {
  padding: clamp(56px, 7vw, 100px) 0 clamp(40px, 5vw, 68px);
  border-bottom: 1px solid var(--line);
  background: linear-gradient(180deg, #f7fbff 0%, #eef7fd 100%);
}
.page-hero .rail-label {
  margin-bottom: clamp(24px, 3vw, 36px);
}
.page-hero-main {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(28px, 5vw, 80px);
  align-items: end;
}
.page-hero h1 {
  max-width: 15ch;
}
.lede {
  max-width: 46ch;
  color: var(--muted);
  font-size: clamp(1.02rem, 1.25vw, 1.18rem);
  line-height: 1.62;
}

/* ---------- services page ---------- */
.services-wrap {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: clamp(40px, 5vw, 88px);
  padding-block: clamp(48px, 6vw, 88px);
  align-items: start;
}
.services-aside {
  position: sticky;
  top: calc(var(--header-h) + 28px);
}
.services-nav nav {
  display: flex;
  flex-direction: column;
  margin-top: 16px;
}
.services-nav a {
  display: flex;
  gap: 12px;
  align-items: baseline;
  padding: 10px 0;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.4;
  text-decoration: none;
  transition: color 0.2s;
}
.services-nav a:last-child {
  border-bottom: 1px solid var(--line);
}
.services-nav a span {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.services-nav a:hover,
.services-nav a.is-active {
  color: var(--accent);
}
.services-aside-note {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line-strong);
}
.services-aside-note h2 {
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.services-aside-note p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}

.service-block {
  padding: 40px 0 clamp(48px, 6vw, 76px);
  border-top: 1px solid var(--line);
  scroll-margin-top: calc(var(--header-h) + 24px);
}
.service-sections .service-block:first-child {
  padding-top: 0;
  border-top: 0;
}
.service-block-head {
  display: flex;
  align-items: baseline;
  gap: 18px;
}
.service-no {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  flex: none;
}
.service-block h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  max-width: 24ch;
}
.service-lede {
  max-width: 58ch;
  margin: 20px 0 34px;
  font-size: 1.12rem;
  line-height: 1.6;
}
.service-cols {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(28px, 4vw, 56px);
}
.service-cols h3 {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 0.62rem;
  font-weight: 400;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--muted);
}
.service-scope ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.service-scope li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.94rem;
  line-height: 1.5;
}
.service-scope li::before {
  content: '';
  width: 5px;
  height: 5px;
  margin-top: 0.6em;
  background: linear-gradient(135deg, var(--cyan), var(--accent));
  flex: none;
}
.stack {
  margin: 0 0 28px;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}
.service-note {
  margin: 0;
  padding-left: 16px;
  border-left: 2px solid var(--cyan);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

/* ---------- about ---------- */
.prose p {
  max-width: 62ch;
  color: var(--muted);
  line-height: 1.68;
}
.prose p + p {
  margin-top: 18px;
}
.prose p:first-child {
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.62;
}

.name-band {
  background: linear-gradient(135deg, #e7f3fc 0%, #f7fbff 58%, #e2f1fb 100%);
  border-block: 1px solid var(--line);
  padding-block: clamp(64px, 8vw, 112px);
  overflow: hidden;
}
.name-grid {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: clamp(40px, 6vw, 96px);
  align-items: center;
}
.name-logo {
  display: block;
  padding: 26px 28px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 24px 54px rgba(7, 43, 78, 0.09);
}
.name-logo img {
  width: 100%;
  height: auto;
}
.name-copy .rail-label {
  color: var(--accent);
}
.name-copy h2 {
  margin: 16px 0 22px;
  font-size: clamp(2rem, 3.6vw, 3.4rem);
}
.name-copy p {
  max-width: 58ch;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.principle-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 4vw, 56px);
}
.principle-grid li {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.principle-grid .marker {
  display: block;
  width: 18px;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--accent));
}
.principle-grid h3 {
  margin: 20px 0 12px;
  font-size: 1.3rem;
  max-width: 22ch;
}
.principle-grid p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

.facts-section {
  background: var(--paper-2);
  border-block: 1px solid var(--line);
}
.fact-list {
  margin: 0;
}
.fact-list > div {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 7fr);
  gap: 24px;
  padding: 17px 0;
  border-top: 1px solid var(--line);
}
.fact-list > div:last-child {
  border-bottom: 1px solid var(--line);
}
.fact-list dt {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
  padding-top: 3px;
}
.fact-list dd {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.5;
}

/* ---------- contact ---------- */
.contact-section {
  padding-top: clamp(48px, 6vw, 80px);
}
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: clamp(40px, 7vw, 112px);
  align-items: start;
}
.contact-form-wrap h2 {
  font-size: clamp(1.7rem, 2.6vw, 2.1rem);
  margin-bottom: 40px;
}
.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
}
.contact-form label {
  display: block;
  margin-bottom: 28px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.req {
  color: var(--accent);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  display: block;
  width: 100%;
  margin-top: 10px;
  padding: 9px 0 11px;
  border: 0;
  border-bottom: 1px solid var(--line-strong);
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-family: var(--body);
  font-size: 1rem;
  letter-spacing: 0;
  text-transform: none;
  transition: border-color 0.2s;
}
.contact-form textarea {
  resize: vertical;
  min-height: 140px;
  line-height: 1.55;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-bottom-color: var(--accent);
}
.contact-form ::placeholder {
  color: #7a8fa1;
  opacity: 1;
  font-size: 0.94rem;
}
.select-wrap {
  position: relative;
  display: block;
}
.select-wrap::after {
  content: '';
  position: absolute;
  right: 4px;
  top: 50%;
  width: 6px;
  height: 6px;
  border-right: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  transform: translateY(-50%) rotate(45deg);
  pointer-events: none;
}
.contact-form select {
  appearance: none;
  -webkit-appearance: none;
  padding-right: 24px;
  cursor: pointer;
}
.form-full {
  display: block;
}
.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px 32px;
  margin-top: 6px;
}
.form-note {
  max-width: 46ch;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.55;
}
.form-status {
  min-height: 1.2em;
  margin-top: 18px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--accent);
}

.contact-details {
  position: sticky;
  top: calc(var(--header-h) + 32px);
  padding: 24px 26px 26px;
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  border-radius: 2px;
  background: linear-gradient(180deg, #f8fcff 0%, #eef7fd 100%);
}
.contact-details dl {
  margin: 22px 0 0;
}
.contact-details dl > div {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.contact-details dt {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--muted);
}
.contact-details dd {
  margin: 5px 0 0;
  font-size: 0.98rem;
  line-height: 1.5;
}
.contact-email {
  font-family: var(--display);
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
.copy-btn {
  margin-left: 10px;
  padding: 6px 9px;
  border: 1px solid var(--line-strong);
  background: #fff;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  cursor: pointer;
  vertical-align: 2px;
  transition: color 0.2s, border-color 0.2s;
}
.copy-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.contact-side-note {
  margin-top: 24px;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.6;
}
.contact-coords {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 40px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* ---------- privacy ---------- */
.privacy-list {
  max-width: 760px;
  display: grid;
  gap: clamp(36px, 5vw, 56px);
}
.privacy-item h2 {
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.privacy-item p {
  color: var(--muted);
  line-height: 1.68;
}

/* ---------- 404 ---------- */
.body-404 {
  min-height: 100svh;
  background: linear-gradient(160deg, #f7fbff 0%, #e7f3fc 100%);
  color: var(--ink);
  display: grid;
  place-items: center;
  padding: clamp(28px, 6vw, 80px);
  position: relative;
  overflow: hidden;
}
.body-404::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(7, 43, 78, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(7, 43, 78, 0.05) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 78%);
  -webkit-mask-image: radial-gradient(80% 80% at 50% 50%, #000, transparent 78%);
}
.notfound {
  position: relative;
  width: 100%;
  max-width: 760px;
}
.notfound .brand {
  color: var(--ink);
  margin-bottom: clamp(48px, 8vw, 90px);
}
.notfound .rail-label {
  color: var(--accent);
  margin-bottom: 24px;
}
.notfound h1 {
  max-width: 12ch;
  font-size: clamp(2.8rem, 6vw, 5rem);
  margin-bottom: 26px;
}
.notfound .lede {
  color: var(--muted);
  max-width: 46ch;
}
.notfound .lede + .lede {
  margin-top: 8px;
  font-size: 0.95rem;
}
.notfound-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 36px;
}
.notfound .btn:hover {
  background: var(--ink);
  border-color: var(--ink);
}

.site-footer a:focus-visible,
.cta-section--brand a:focus-visible {
  outline-color: var(--cyan-bright);
}

/* ---------- Chinese typography ---------- */
html[lang='zh-Hans'] body {
  font-family: var(--body);
  line-height: 1.72;
}
html[lang='zh-Hans'] h1,
html[lang='zh-Hans'] h2,
html[lang='zh-Hans'] h3 {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', var(--display), sans-serif;
  font-stretch: normal;
  letter-spacing: 0.005em;
  font-weight: 700;
}
html[lang='zh-Hans'] h1 {
  font-size: clamp(2.6rem, 4.8vw, 4.8rem);
  line-height: 1.17;
  letter-spacing: 0;
}
html[lang='zh-Hans'] h2 {
  font-size: clamp(1.9rem, 3.1vw, 3.2rem);
  line-height: 1.2;
  letter-spacing: 0;
}
html[lang='zh-Hans'] h3 {
  font-size: 1.18rem;
  line-height: 1.4;
}
html[lang='zh-Hans'] .hero h1 {
  max-width: none;
}
html[lang='zh-Hans'] .section-head-main h2 {
  max-width: 22ch;
}
html[lang='zh-Hans'] .step-no,
html[lang='zh-Hans'] .footer-word,
html[lang='zh-Hans'] .brand-name {
  font-family: var(--display);
  letter-spacing: -0.02em;
}
html[lang='zh-Hans'] .hero-lede,
html[lang='zh-Hans'] .section-intro,
html[lang='zh-Hans'] .lede,
html[lang='zh-Hans'] .prose p,
html[lang='zh-Hans'] .contact-form input,
html[lang='zh-Hans'] .contact-form select,
html[lang='zh-Hans'] .contact-form textarea {
  letter-spacing: 0.01em;
}
html[lang='zh-Hans'] .fig-caption {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', var(--display), sans-serif;
  letter-spacing: 0;
}
html[lang='zh-Hans'] .brand-name {
  font-family: var(--display);
  letter-spacing: 0.16em;
}

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .hero {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  }
  .hero-panel {
    min-height: 540px;
  }
  .steps li {
    padding-inline: 18px;
  }
}

@media (max-width: 980px) {
  :root {
    --header-h: 66px;
  }
  .nav,
  .header-cta,
  .header-tools > .lang-switch {
    display: none;
  }
  .menu-toggle {
    display: flex;
  }
  .header-tools {
    gap: 0;
  }
  .hero {
    grid-template-columns: 1fr;
    min-height: 0;
  }
  .hero-copy {
    padding-top: clamp(44px, 8vw, 72px);
    padding-bottom: 44px;
  }
  .hero h1 {
    max-width: 14ch;
  }
  .hero-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 40px;
  }
  .hero-panel {
    min-height: 560px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .section-head {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .section-head-main h2 {
    max-width: 24ch;
  }
  .split {
    grid-template-columns: 1fr;
  }
  .split-side h2 {
    max-width: 24ch;
  }
  .page-hero-main {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .page-hero h1 {
    max-width: 18ch;
  }
  .services-wrap {
    grid-template-columns: 1fr;
  }
  .services-aside {
    display: none;
  }
  .service-sections .service-block:first-child {
    padding-top: 0;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .contact-details {
    position: static;
  }
  .name-grid {
    grid-template-columns: 1fr;
  }
  .name-logo {
    max-width: 300px;
  }
  .coverage {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .principle-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .steps li {
    padding: 26px 24px 24px;
    border-top: 1px solid var(--line);
  }
  .steps li:nth-child(odd) {
    border-left: 0;
    padding-left: 0;
  }
  .steps li:nth-child(-n + 2) {
    border-top: 0;
  }
  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .footer-brand {
    grid-column: 1 / -1;
    margin-bottom: 12px;
  }
  .cta-grid {
    grid-template-columns: 1fr;
  }
  .cta-emblem {
    display: none;
  }
  .service-cols {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  h1 {
    font-size: clamp(2.5rem, 8.4vw, 4rem);
  }
  .hero h1 {
    max-width: 13ch;
  }
  .hero-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .hero-panel {
    min-height: 480px;
  }
  .panel-bar,
  .panel-foot {
    font-size: 0.55rem;
    padding: 12px 14px;
  }
  .service-index a {
    grid-template-columns: 36px minmax(0, 1fr) 40px;
    grid-template-areas:
      'no title icon'
      'no desc icon';
    gap: 4px 14px;
    padding: 22px 0;
    align-items: start;
  }
  .si-no {
    grid-area: no;
    padding-top: 3px;
  }
  .si-title {
    grid-area: title;
  }
  .si-desc {
    grid-area: desc;
    font-size: 0.88rem;
  }
  .si-icon {
    grid-area: icon;
    width: 34px;
    height: 34px;
    align-self: center;
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .steps li,
  .steps li:nth-child(odd),
  .steps li:nth-child(-n + 2) {
    border-left: 0;
    border-top: 1px solid var(--line);
    padding: 24px 0;
  }
  .steps li:first-child {
    border-top: 0;
  }
  .coverage {
    grid-template-columns: 1fr;
  }
  .principle-grid {
    grid-template-columns: 1fr;
  }
  .spec-list > div {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .fact-list > div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .image-band {
    height: clamp(280px, 70vw, 420px);
  }
  .image-band figcaption {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    padding-bottom: 22px;
  }
  .fig-caption {
    text-align: left;
  }
  .footer-word {
    font-size: clamp(3.4rem, 16.5vw, 8rem);
  }
  .footer-top {
    grid-template-columns: 1fr;
  }
  .footer-brand {
    grid-column: auto;
  }
  .footer-legal {
    flex-direction: column;
    gap: 6px;
  }
  .cta-actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .form-actions {
    align-items: flex-start;
    flex-direction: column;
  }
  .contact-coords {
    flex-direction: column;
    gap: 4px;
  }
}

@media (max-width: 480px) {
  .brand-sub {
    display: none;
  }
  .brand-mark {
    height: 32px;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .hero-facts {
    gap: 16px;
  }
  .panel-bar span:first-child {
    max-width: 55%;
  }
  .notfound-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .notfound .btn {
    width: 100%;
  }
}

@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;
  }
  .topology .scanline,
  .topology .packets {
    display: none;
  }
  .hero-copy-inner > * {
    animation: none;
  }
}