:root {
  color-scheme: light;
  --page: #f4f5f7;
  --surface: #ffffff;
  --surface-raised: #f9fafb;
  --surface-soft: #eceef2;
  --text: #18191f;
  --text-soft: #5c606c;
  --text-faint: #737784;
  --border: #daddE4;
  --border-strong: #c3c7d0;
  --accent: #f23a21;
  --accent-strong: #c92d1a;
  --accent-hover: #ff5a42;
  --accent-soft: #fff0ec;
  --accent-text: #18191f;
  --warning-bg: #fff6f0;
  --membership-bg: linear-gradient(135deg, rgb(77 120 255 / 11%), rgb(156 114 255 / 8%));
  --future-bg: linear-gradient(135deg, rgb(242 58 33 / 9%), rgb(32 166 188 / 10%) 58%, rgb(77 120 255 / 8%));
  --header-bg: rgb(244 245 247 / 34%);
  --header-edge: rgb(255 255 255 / 68%);
  --control-glass: rgb(255 255 255 / 52%);
  --control-glass-hover: rgb(255 255 255 / 70%);
  --grid-line: rgb(24 25 31 / 8%);
  --hero-glow-a: rgb(242 58 33 / 16%);
  --hero-glow-b: rgb(77 120 255 / 12%);
  --glass-surface: rgb(255 255 255 / 72%);
  --glass-edge: rgb(255 255 255 / 64%);
  --grain-rgb: 24 25 31;
  --grain-opacity: 0.045;
  --wash-blend-mode: multiply;
  --shadow: 0 28px 80px -52px rgb(28 32 45 / 48%);
  --shadow-strong: 0 34px 90px -56px rgb(28 32 45 / 62%);
  --route-main: #c92d1a;
  --route-hk: #08756e;
  --route-jp: #3867df;
  --route-de: #7751db;
  --font-sans: "Segoe UI", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --font-display: "Arial Black", "Segoe UI Black", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --max-width: 1400px;
  --radius: 20px;
  --radius-control: 14px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --page: #0e0f14;
  --surface: #16181f;
  --surface-raised: #1c1f28;
  --surface-soft: #242731;
  --text: #f3f2ee;
  --text-soft: #b7bac4;
  --text-faint: #969aa8;
  --border: #2f333e;
  --border-strong: #444956;
  --accent: #ff4a31;
  --accent-strong: #ff705c;
  --accent-hover: #ff705c;
  --accent-soft: #2d1d1c;
  --accent-text: #171216;
  --warning-bg: #261d1b;
  --membership-bg: linear-gradient(135deg, rgb(77 120 255 / 16%), rgb(156 114 255 / 11%));
  --future-bg: linear-gradient(135deg, rgb(242 58 33 / 13%), rgb(32 166 188 / 12%) 58%, rgb(77 120 255 / 10%));
  --header-bg: rgb(14 15 20 / 32%);
  --header-edge: rgb(255 255 255 / 15%);
  --control-glass: rgb(22 24 31 / 48%);
  --control-glass-hover: rgb(28 31 40 / 68%);
  --grid-line: rgb(243 242 238 / 7%);
  --hero-glow-a: rgb(242 58 33 / 20%);
  --hero-glow-b: rgb(77 120 255 / 16%);
  --glass-surface: rgb(22 24 31 / 76%);
  --glass-edge: rgb(255 255 255 / 14%);
  --grain-rgb: 243 242 238;
  --grain-opacity: 0.06;
  --wash-blend-mode: screen;
  --shadow: 0 28px 80px -52px rgb(0 0 0 / 78%);
  --shadow-strong: 0 34px 90px -52px rgb(0 0 0 / 88%);
  --route-main: #ff5a42;
  --route-hk: #2bc7ba;
  --route-jp: #6288ff;
  --route-de: #a17cff;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) {
    color-scheme: dark;
    --page: #0e0f14;
    --surface: #16181f;
    --surface-raised: #1c1f28;
    --surface-soft: #242731;
    --text: #f3f2ee;
    --text-soft: #b7bac4;
    --text-faint: #969aa8;
    --border: #2f333e;
    --border-strong: #444956;
    --accent: #ff4a31;
    --accent-strong: #ff705c;
    --accent-hover: #ff705c;
    --accent-soft: #2d1d1c;
    --accent-text: #171216;
    --warning-bg: #261d1b;
    --membership-bg: linear-gradient(135deg, rgb(77 120 255 / 16%), rgb(156 114 255 / 11%));
    --future-bg: linear-gradient(135deg, rgb(242 58 33 / 13%), rgb(32 166 188 / 12%) 58%, rgb(77 120 255 / 10%));
    --header-bg: rgb(14 15 20 / 32%);
    --header-edge: rgb(255 255 255 / 15%);
    --control-glass: rgb(22 24 31 / 48%);
    --control-glass-hover: rgb(28 31 40 / 68%);
    --grid-line: rgb(243 242 238 / 7%);
    --hero-glow-a: rgb(242 58 33 / 20%);
    --hero-glow-b: rgb(77 120 255 / 16%);
    --glass-surface: rgb(22 24 31 / 76%);
    --glass-edge: rgb(255 255 255 / 14%);
    --grain-rgb: 243 242 238;
    --grain-opacity: 0.06;
    --wash-blend-mode: screen;
    --shadow: 0 28px 80px -52px rgb(0 0 0 / 78%);
    --shadow-strong: 0 34px 90px -52px rgb(0 0 0 / 88%);
    --route-main: #ff5a42;
    --route-hk: #2bc7ba;
    --route-jp: #6288ff;
    --route-de: #a17cff;
  }
}

* {
  box-sizing: border-box;
}

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

body {
  min-height: 100dvh;
  margin: 0;
  overflow-x: hidden;
  background: var(--page);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  transition: background-color 220ms ease, color 220ms ease;
}

body::before {
  position: fixed;
  z-index: 30;
  inset: -12%;
  pointer-events: none;
  background:
    radial-gradient(circle, rgb(var(--grain-rgb) / 30%) 0 0.55px, transparent 0.8px) 0 0 / 5px 5px,
    radial-gradient(circle, rgb(var(--grain-rgb) / 22%) 0 0.45px, transparent 0.75px) 3px 2px / 7px 7px;
  content: "";
  mix-blend-mode: soft-light;
  opacity: var(--grain-opacity);
  will-change: transform, opacity;
}

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

button {
  color: inherit;
  font: inherit;
}

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

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.action-arrow {
  --arrow-color: var(--accent-strong);
  display: inline-grid;
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  place-items: center;
  color: var(--arrow-color);
}

.action-arrow svg {
  width: 24px;
  height: 24px;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 5px 7px color-mix(in srgb, var(--arrow-color) 28%, transparent));
  transition: filter 190ms ease, transform 190ms var(--ease);
}

.action-arrow .arrow-stem {
  stroke-width: 2.15;
}

.action-arrow .arrow-head {
  stroke-width: 2.55;
}

a:hover .action-arrow svg {
  filter: drop-shadow(0 7px 9px color-mix(in srgb, var(--arrow-color) 42%, transparent));
  transform: translate3d(3px, -3px, 0) scale(1.04);
}

a:active .action-arrow svg {
  transform: translate3d(1px, -1px, 0) scale(0.94);
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 4px;
}

.topbar {
  position: sticky;
  z-index: 50;
  top: 0;
  overflow: hidden;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 62%, transparent);
  background: var(--header-bg);
  backdrop-filter: blur(26px) saturate(165%);
  -webkit-backdrop-filter: blur(26px) saturate(165%);
  box-shadow:
    inset 0 1px 0 var(--header-edge),
    0 18px 46px -42px color-mix(in srgb, var(--text) 38%, transparent);
  isolation: isolate;
}

.topbar::before {
  position: absolute;
  z-index: 0;
  inset: -230% -12%;
  pointer-events: none;
  background:
    radial-gradient(ellipse 34% 48% at 16% 48%, rgb(242 58 33 / 10%), transparent 74%),
    radial-gradient(ellipse 38% 52% at 70% 42%, rgb(77 120 255 / 8%), transparent 76%),
    radial-gradient(ellipse 28% 44% at 92% 62%, rgb(32 166 188 / 7%), transparent 75%);
  content: "";
  mix-blend-mode: var(--wash-blend-mode);
  opacity: 0.42;
  will-change: transform, opacity;
}

.topbar__inner {
  position: relative;
  z-index: 1;
  display: flex;
  width: min(calc(100% - 40px), var(--max-width));
  min-height: 72px;
  margin: 0 auto;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.wordmark {
  display: inline-flex;
  min-width: 0;
  align-items: center;
  gap: 11px;
}

.wordmark img {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 10px 25px -17px rgb(242 58 33 / 88%);
}

.wordmark strong,
.footer-brand strong {
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 900;
  letter-spacing: -0.055em;
}

.wordmark b,
.footer-brand b {
  color: var(--accent);
}

.topbar__controls {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 8px;
}

.theme-toggle,
.language-switch {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--control-glass);
  backdrop-filter: blur(14px) saturate(145%);
  -webkit-backdrop-filter: blur(14px) saturate(145%);
  box-shadow: 0 10px 25px -22px rgb(24 25 31 / 62%);
}

.theme-toggle {
  gap: 8px;
  padding: 0 13px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 750;
  white-space: nowrap;
  transition: border-color 180ms ease, transform 180ms var(--ease), background-color 180ms ease;
}

.theme-toggle:hover {
  border-color: var(--border-strong);
  background: var(--control-glass-hover);
  transform: translateY(-1px);
}

.theme-toggle:active {
  transform: translateY(1px);
}

.theme-toggle__indicator {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
  border: 2px solid var(--text);
  border-radius: 50%;
  background: var(--text);
  box-shadow: inset 6px 0 0 var(--surface);
}

html[data-theme="dark"] .theme-toggle__indicator {
  box-shadow: inset -6px 0 0 var(--surface);
}

.language-switch {
  gap: 2px;
  padding: 3px;
}

.language-switch button {
  min-width: 40px;
  min-height: 34px;
  padding: 0 8px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms var(--ease);
}

.language-switch button:hover {
  background: var(--control-glass-hover);
}

.language-switch button:active {
  transform: translateY(1px);
}

.language-switch button[aria-pressed="true"] {
  background: var(--text);
  color: var(--page);
}

.hero {
  position: relative;
  min-height: calc(100dvh - 72px);
  overflow: hidden;
  background: var(--page);
}

.hero__texture {
  position: absolute;
  z-index: 0;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background-position: center 58%;
  background-repeat: no-repeat;
  background-size: cover;
  filter: saturate(82%) contrast(92%);
  mix-blend-mode: multiply;
  opacity: 0.2;
  user-select: none;
}

html[data-hero-background="v1"] .hero__texture {
  background-image: url("/assets/bulai-fluid-atmosphere-v1.webp");
}

html[data-hero-background="v2"] .hero__texture {
  background-image: url("/assets/bulai-fluid-atmosphere-v2.webp");
}

html[data-hero-background="v3"] .hero__texture {
  background-image: url("/assets/bulai-fluid-atmosphere-v3.webp");
}

html[data-hero-background="v4"] .hero__texture {
  background-image: url("/assets/bulai-fluid-atmosphere-v4.webp");
}

html[data-theme="dark"] .hero__texture {
  filter: saturate(78%) brightness(82%);
  mix-blend-mode: screen;
  opacity: 0.16;
}

.hero__wash {
  position: absolute;
  z-index: 0;
  inset: -18% -8%;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(ellipse 46% 40% at 12% 18%, var(--hero-glow-a), transparent 72%),
    radial-gradient(ellipse 52% 44% at 88% 30%, var(--hero-glow-b), transparent 74%),
    radial-gradient(ellipse 38% 34% at 56% 86%, rgb(32 166 188 / 7%), transparent 76%);
  transform-origin: center top;
}

.hero__wash::before,
.hero__wash::after {
  position: absolute;
  pointer-events: none;
  content: "";
  will-change: transform, opacity;
}

.hero__wash::before {
  inset: -24%;
  background:
    radial-gradient(ellipse 34% 45% at 22% 34%, rgb(242 58 33 / 17%), transparent 74%),
    radial-gradient(ellipse 42% 32% at 74% 24%, rgb(77 120 255 / 13%), transparent 76%),
    radial-gradient(ellipse 38% 42% at 62% 78%, rgb(32 166 188 / 11%), transparent 75%);
  filter: blur(34px) saturate(108%);
  mix-blend-mode: var(--wash-blend-mode);
  opacity: 0.68;
}

.hero__wash::after {
  inset: -18%;
  background:
    radial-gradient(ellipse 36% 30% at 28% 62%, rgb(255 94 152 / 10%), transparent 76%),
    radial-gradient(ellipse 44% 38% at 76% 64%, rgb(77 120 255 / 12%), transparent 78%),
    radial-gradient(ellipse 30% 36% at 48% 20%, rgb(242 58 33 / 12%), transparent 74%);
  filter: blur(40px) saturate(106%);
  mix-blend-mode: var(--wash-blend-mode);
  opacity: 0.58;
}

.hero__inner {
  position: relative;
  z-index: 3;
  display: grid;
  width: min(calc(100% - 40px), var(--max-width));
  min-height: calc(100dvh - 72px);
  margin: 0 auto;
  grid-template-columns: minmax(0, 0.88fr) minmax(520px, 1.12fr);
  gap: clamp(48px, 7vw, 108px);
  align-items: center;
  padding: clamp(46px, 6vh, 70px) 0 clamp(104px, 12vh, 126px);
}

.hero__copy {
  position: relative;
  min-width: 0;
  isolation: isolate;
}

.hero__copy::before {
  position: absolute;
  z-index: -1;
  inset: -54px -72px;
  pointer-events: none;
  background: radial-gradient(
    ellipse at 35% 48%,
    color-mix(in srgb, var(--page) 92%, transparent) 0 38%,
    color-mix(in srgb, var(--page) 68%, transparent) 58%,
    transparent 80%
  );
  content: "";
  filter: blur(12px);
}

.hero h1 {
  max-width: 760px;
  margin-bottom: 18px;
  font-family: var(--font-display);
  font-size: clamp(72px, 8.2vw, 112px);
  font-weight: 950;
  letter-spacing: -0.07em;
  line-height: 0.92;
  overflow-wrap: anywhere;
}

html[data-lang="en"] .hero h1 {
  font-size: clamp(68px, 7.8vw, 106px);
}

.hero__ai {
  color: var(--accent);
}

.hero__tagline {
  max-width: 650px;
  margin-bottom: 16px;
  font-size: clamp(22px, 2.15vw, 31px);
  font-weight: 850;
  letter-spacing: -0.035em;
  line-height: 1.35;
}

.hero__principles {
  max-width: 650px;
  margin-bottom: 27px;
  color: var(--accent-strong);
  font-size: 17px;
  font-weight: 850;
  line-height: 1.55;
}

.hero__lead {
  max-width: 620px;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: clamp(17px, 1.45vw, 20px);
  line-height: 1.72;
}

.hero-model-cloud {
  position: absolute;
  z-index: 1;
  inset: 0;
  margin: 0;
  padding: 0;
  overflow: hidden;
  list-style: none;
  pointer-events: none;
  contain: layout paint;
}

.floating-model {
  --node-color: var(--route-jp);
  position: absolute;
  top: var(--y);
  left: var(--x);
  display: grid;
  width: max-content;
  max-width: min(240px, 26vw);
  min-height: 56px;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 11px;
  align-items: center;
  padding: 6px 14px 6px 7px;
  border: 1px solid color-mix(in srgb, var(--node-color) 28%, var(--border));
  border-radius: 16px;
  background: color-mix(in srgb, var(--node-color) 8%, var(--glass-surface));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 38%),
    0 22px 46px -32px color-mix(in srgb, var(--node-color) 72%, transparent);
  color: var(--text);
  opacity: var(--alpha);
  scale: var(--scale);
  backdrop-filter: blur(14px) saturate(135%);
  -webkit-backdrop-filter: blur(14px) saturate(135%);
  transform-origin: center;
}

.floating-model > img,
.floating-model .model-avatar {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  overflow: hidden;
  border-radius: 13px;
  background: var(--surface-soft);
  box-shadow: 0 12px 26px -18px color-mix(in srgb, var(--node-color) 78%, transparent);
}

.floating-model > img {
  object-fit: cover;
}

.floating-model .model-avatar img {
  width: 30px;
  height: 30px;
}

.floating-model > span:last-child {
  min-width: 0;
  font-size: clamp(14px, 1vw, 16px);
  font-weight: 900;
  letter-spacing: -0.025em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.hero-showcase {
  position: relative;
  display: flex;
  width: 100%;
  min-width: 0;
  min-height: 330px;
  flex-direction: column;
  justify-content: space-between;
  gap: 28px;
  padding: clamp(28px, 3.4vw, 42px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 15% 22%, rgb(242 58 33 / 15%), transparent 29%),
    radial-gradient(circle at 88% 80%, rgb(77 120 255 / 12%), transparent 34%),
    color-mix(in srgb, var(--glass-surface) 90%, var(--surface));
  box-shadow: inset 0 1px 0 var(--glass-edge), var(--shadow-strong);
  backdrop-filter: blur(18px) saturate(138%);
  -webkit-backdrop-filter: blur(18px) saturate(138%);
}

.hero-showcase::before {
  position: absolute;
  right: -18%;
  bottom: -34%;
  width: 76%;
  aspect-ratio: 1;
  border: 1px solid var(--grid-line);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.model-sky__head {
  position: relative;
  z-index: 2;
  display: grid;
  min-width: 0;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 18px;
  align-items: center;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.model-sky__brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
}

.model-sky__brand img {
  width: 54px;
  height: 54px;
  border-radius: 15px;
  box-shadow: 0 18px 38px -22px rgb(242 58 33 / 86%);
}

.model-sky__brand strong {
  font-family: var(--font-display);
  font-size: 27px;
  font-weight: 950;
  letter-spacing: -0.06em;
  white-space: nowrap;
}

.model-sky__brand b {
  color: var(--accent);
}

.model-sky__promise {
  display: grid;
  min-width: 0;
  gap: 4px;
  justify-items: end;
  text-align: right;
}

.model-sky__promise strong {
  color: var(--accent-strong);
  font-size: 16px;
  font-weight: 900;
}

.model-sky__promise span {
  max-width: 390px;
  color: var(--text-soft);
  font-size: 13.5px;
  font-weight: 680;
  line-height: 1.45;
}

.model-node--warm,
.model-node--gold,
.model-node--ember {
  --node-color: var(--accent);
}

.model-node--sand {
  --node-color: #c47a58;
}

.model-node--ink {
  --node-color: var(--text-faint);
}

.model-node--grok-imagine {
  --node-color: #bd4d91;
}

.model-node--grok-composer {
  --node-color: #4f72d8;
}

.model-node--blue,
.model-node--ice {
  --node-color: var(--route-jp);
}

.model-node--luna {
  --node-color: #a765d5;
}

.model-node--terra {
  --node-color: var(--route-hk);
}

.model-node--glm {
  --node-color: #7457d8;
}

.model-node--deepseek {
  --node-color: #4d6bfe;
}

.model-node--deepseek .model-avatar {
  background: color-mix(in srgb, #4d6bfe 10%, var(--surface));
}

.model-node--flash > img,
.model-node--flash .model-avatar {
  filter: saturate(1.2) brightness(1.04);
}

.model-sky__future {
  position: relative;
  z-index: 2;
  display: block;
  min-width: 0;
  padding: 22px 24px;
  border: 1px solid color-mix(in srgb, var(--route-jp) 28%, var(--border));
  border-radius: var(--radius-control);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--route-jp) 9%, var(--surface)), color-mix(in srgb, var(--route-hk) 6%, var(--surface)));
  box-shadow: inset 0 1px 0 rgb(255 255 255 / 38%);
}

.model-sky__future-head {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
}

.model-sky__future-head > span {
  padding: 7px 11px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--route-jp) 12%, var(--surface));
  color: var(--route-jp);
  font-size: 14px;
  font-weight: 900;
  white-space: nowrap;
}

.model-sky__future-head strong {
  min-width: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 2vw, 28px);
  font-weight: 950;
  letter-spacing: -0.04em;
  line-height: 1.1;
  overflow-wrap: anywhere;
}

.model-sky__future p {
  min-width: 0;
  margin: 13px 0 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.55;
}

.scroll-cue {
  position: absolute;
  z-index: 40;
  bottom: 22px;
  left: 50%;
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  gap: 14px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--control-glass);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  box-shadow: 0 14px 34px -28px rgb(24 25 31 / 68%);
  color: var(--text);
  font-size: 17px;
  font-weight: 800;
  white-space: nowrap;
  transform: translateX(-50%);
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.scroll-cue:hover {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.scroll-cue b {
  color: var(--accent);
  font-size: 20px;
}

.content-zone {
  background: var(--page);
  color: var(--text);
}

.network,
.support,
footer {
  width: min(calc(100% - 40px), var(--max-width));
  margin: 0 auto;
}

.network {
  padding: clamp(90px, 10vw, 142px) 0 26px;
}

.network-lead {
  white-space: pre-line;
}

.section-heading {
  max-width: 840px;
  margin-bottom: clamp(40px, 5vw, 66px);
}

.section-heading h2,
.support h2 {
  margin-bottom: 20px;
  font-family: var(--font-display);
  font-size: clamp(40px, 5vw, 68px);
  font-weight: 950;
  letter-spacing: -0.065em;
  line-height: 1;
  overflow-wrap: anywhere;
}

.section-heading p,
.support__copy > p {
  max-width: 680px;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.72;
}

.network__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(430px, 0.94fr);
  gap: 18px;
}

.main-site,
.route-panel,
.status-site,
.demo-site,
.future-apps,
.support-link {
  position: relative;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.main-site {
  padding: clamp(32px, 4.6vw, 60px);
  overflow: hidden;
}

.main-site::after {
  position: absolute;
  right: -18%;
  bottom: -30%;
  width: 62%;
  aspect-ratio: 1;
  border: 1px solid rgb(242 58 33 / 18%);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.site-heading {
  position: relative;
  z-index: 1;
  display: flex;
  min-width: 0;
  align-items: center;
  gap: 20px;
}

.site-heading img {
  width: 68px;
  height: 68px;
  flex: 0 0 auto;
  border-radius: 19px;
}

.site-heading > div {
  min-width: 0;
}

.site-heading p {
  margin-bottom: 7px;
  color: var(--accent-strong);
  font-size: 15px;
  font-weight: 850;
}

.site-heading h3,
.demo-site h3 {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: clamp(32px, 4vw, 50px);
  font-weight: 950;
  letter-spacing: -0.06em;
  line-height: 1;
  overflow-wrap: anywhere;
}

.site-summary {
  position: relative;
  z-index: 1;
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.7;
}

.email-alert,
.membership {
  position: relative;
  z-index: 1;
  margin-top: 26px;
  border-radius: var(--radius-control);
}

.email-alert {
  padding: 24px 25px 24px 29px;
  border: 1px solid rgb(242 58 33 / 34%);
  border-left: 5px solid var(--accent);
  background: var(--warning-bg);
}

.email-alert strong {
  display: block;
  color: var(--accent-strong);
  font-size: 20px;
  font-weight: 900;
}

.email-alert p {
  margin: 10px 0 0;
  color: var(--text-soft);
  font-size: 16px;
  line-height: 1.68;
}

.email-alert__copy {
  white-space: pre-line;
}

.membership {
  padding: 25px 26px;
  border: 1px solid rgb(77 120 255 / 24%);
  background: var(--membership-bg);
}

.membership h4 {
  margin-bottom: 11px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.membership p {
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.72;
}

.membership__copy {
  white-space: pre-line;
}

.main-site__action,
.demo-site > a {
  --button-accent: var(--accent-strong);
  position: relative;
  z-index: 1;
  display: inline-flex;
  min-height: 50px;
  margin-top: 28px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  padding: 0 18px;
  border: 1px solid color-mix(in srgb, var(--button-accent) 34%, var(--border));
  border-radius: var(--radius-control);
  background: color-mix(in srgb, var(--button-accent) 6%, var(--surface));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 72%),
    0 14px 30px -26px color-mix(in srgb, var(--button-accent) 48%, transparent);
  color: var(--button-accent);
  font-size: 16px;
  font-weight: 850;
  transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms var(--ease);
}

.main-site__action:hover,
.demo-site > a:hover {
  border-color: color-mix(in srgb, var(--button-accent) 58%, var(--border));
  background: color-mix(in srgb, var(--button-accent) 12%, var(--surface));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 68%),
    0 18px 34px -25px color-mix(in srgb, var(--button-accent) 58%, transparent);
  transform: translateY(-2px);
}

.main-site__action:active,
.demo-site > a:active {
  transform: translateY(1px);
}

.route-panel {
  padding: clamp(28px, 3.6vw, 48px);
}

.route-panel__head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}

.route-panel__head h3 {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 900;
  letter-spacing: -0.045em;
}

.route-panel__head p {
  margin-bottom: 2px;
  color: var(--text-soft);
  font-size: 15px;
  font-weight: 700;
  text-align: right;
}

.route-tree {
  position: relative;
  display: grid;
  margin: 30px 0 0;
  padding: 0 0 0 38px;
  gap: 14px;
  list-style: none;
}

.route-tree::before {
  position: absolute;
  top: 42px;
  bottom: 42px;
  left: 11px;
  width: 2px;
  background: var(--border-strong);
  content: "";
}

.route {
  --node-color: var(--route-main);
  position: relative;
  min-width: 0;
}

.route::before {
  position: absolute;
  z-index: 1;
  top: calc(50% - 1px);
  left: -27px;
  width: 27px;
  height: 2px;
  background: var(--node-color);
  content: "";
}

.route::after {
  position: absolute;
  z-index: 2;
  top: calc(50% - 6px);
  left: -32px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--node-color);
  background: var(--surface);
  content: "";
  transform: rotate(45deg);
}

.route a {
  display: flex;
  min-width: 0;
  min-height: 100px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 17px 18px 17px 21px;
  border: 1px solid var(--border);
  border-left: 4px solid var(--node-color);
  border-radius: var(--radius-control);
  background: var(--surface-raised);
  transition: border-color 180ms ease, background-color 180ms ease, transform 180ms var(--ease);
}

.route a:hover {
  border-color: var(--node-color);
  background: var(--surface);
  transform: translateX(4px);
}

.route__copy {
  display: grid;
  min-width: 0;
  gap: 4px;
}

.route__label {
  color: var(--node-color);
  font-size: 15px;
  font-weight: 850;
}

.route__copy strong {
  font-size: 18px;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

.route__note {
  color: var(--text-soft);
  font-size: 15px;
  line-height: 1.45;
}

.route__arrow {
  --arrow-color: var(--node-color);
}

.route--hk {
  --node-color: var(--route-hk);
}

.route--jp {
  --node-color: var(--route-jp);
}

.route--de {
  --node-color: var(--route-de);
}

.status-site {
  display: grid;
  margin-top: 18px;
  grid-template-columns: minmax(230px, 0.7fr) minmax(0, 1.3fr) auto;
  gap: clamp(26px, 4vw, 58px);
  align-items: center;
  padding: clamp(28px, 3.5vw, 42px);
  overflow: hidden;
  background:
    radial-gradient(circle at 92% 18%, rgb(8 117 110 / 12%), transparent 28%),
    var(--surface);
}

.status-site__heading {
  min-width: 0;
}

.status-site__heading h3 {
  margin-bottom: 9px;
  color: var(--route-hk);
  font-size: 20px;
  font-weight: 900;
}

.status-site__heading strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(24px, 2.5vw, 34px);
  font-weight: 950;
  letter-spacing: -0.05em;
  overflow-wrap: anywhere;
}

.status-site > p {
  min-width: 0;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.status-site__copy {
  white-space: pre-line;
}

.status-site > a {
  --button-accent: var(--route-hk);
  display: inline-flex;
  min-width: 0;
  min-height: 50px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 18px;
  border: 1px solid color-mix(in srgb, var(--button-accent) 34%, var(--border));
  border-radius: var(--radius-control);
  background: color-mix(in srgb, var(--button-accent) 6%, var(--surface));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 72%),
    0 14px 30px -26px color-mix(in srgb, var(--button-accent) 48%, transparent);
  color: var(--button-accent);
  font-size: 16px;
  font-weight: 850;
  white-space: nowrap;
  transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease, color 180ms ease, transform 180ms var(--ease);
}

.status-site > a:hover {
  border-color: color-mix(in srgb, var(--button-accent) 58%, var(--border));
  background: color-mix(in srgb, var(--button-accent) 12%, var(--surface));
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 68%),
    0 18px 34px -25px color-mix(in srgb, var(--button-accent) 58%, transparent);
  transform: translateY(-2px);
}

.status-site > a:active {
  transform: translateY(1px);
}

.status-site .action-arrow {
  --arrow-color: var(--route-hk);
}

.secondary-sites {
  display: grid;
  margin-top: 18px;
  grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
  gap: 18px;
}

.demo-site .action-arrow {
  --arrow-color: var(--route-de);
}

.demo-site > a {
  --button-accent: var(--route-de);
}

html[data-theme="dark"] .main-site__action,
html[data-theme="dark"] .demo-site > a,
html[data-theme="dark"] .status-site > a {
  border-color: color-mix(in srgb, var(--button-accent) 28%, var(--border));
  background: #0e0f14;
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 7%),
    0 16px 34px -26px color-mix(in srgb, var(--button-accent) 42%, transparent);
  color: var(--text);
}

html[data-theme="dark"] .main-site__action:hover,
html[data-theme="dark"] .demo-site > a:hover,
html[data-theme="dark"] .status-site > a:hover {
  border-color: color-mix(in srgb, var(--button-accent) 54%, var(--border));
  background: color-mix(in srgb, var(--button-accent) 17%, #0e0f14);
  box-shadow:
    inset 0 1px 0 rgb(255 255 255 / 9%),
    0 20px 38px -26px color-mix(in srgb, var(--button-accent) 55%, transparent);
  color: var(--text);
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme]) .main-site__action,
  html:not([data-theme]) .demo-site > a,
  html:not([data-theme]) .status-site > a {
    border-color: color-mix(in srgb, var(--button-accent) 28%, var(--border));
    background: #0e0f14;
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 7%),
      0 16px 34px -26px color-mix(in srgb, var(--button-accent) 42%, transparent);
    color: var(--text);
  }

  html:not([data-theme]) .main-site__action:hover,
  html:not([data-theme]) .demo-site > a:hover,
  html:not([data-theme]) .status-site > a:hover {
    border-color: color-mix(in srgb, var(--button-accent) 54%, var(--border));
    background: color-mix(in srgb, var(--button-accent) 17%, #0e0f14);
    box-shadow:
      inset 0 1px 0 rgb(255 255 255 / 9%),
      0 20px 38px -26px color-mix(in srgb, var(--button-accent) 55%, transparent);
    color: var(--text);
  }
}

.demo-site,
.future-apps {
  min-height: 330px;
  padding: clamp(30px, 4vw, 50px);
}

.demo-site {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 10%, rgb(119 81 219 / 13%), transparent 36%),
    var(--surface);
}

.demo-site__top {
  display: flex;
  min-height: 68px;
  align-items: flex-start;
  justify-content: flex-end;
  gap: 18px;
}

.demo-site__mark {
  position: absolute;
  z-index: -1;
  top: 12px;
  left: 10px;
  display: inline-flex;
  width: 122px;
  height: 112px;
  align-items: flex-end;
  pointer-events: none;
  opacity: 0.18;
  transform: rotate(-11deg);
  transform-origin: center;
  transition: opacity 190ms ease, transform 190ms var(--ease);
}

.demo-site__mark img {
  width: 96px;
  height: 96px;
  border-radius: 25px;
}

.demo-site__mark b {
  margin: 0 0 12px -22px;
  padding: 7px 9px;
  border-radius: 9px;
  background: var(--route-de);
  color: var(--surface);
  font-size: 18px;
  box-shadow: 0 8px 22px rgb(54 32 116 / 18%);
}

.demo-site:hover .demo-site__mark {
  opacity: 0.24;
  transform: rotate(-7deg) scale(1.03);
}

.access-badge {
  padding: 8px 10px;
  border: 1px solid rgb(119 81 219 / 42%);
  border-radius: 10px;
  color: var(--route-de);
  font-size: 14px;
  font-weight: 850;
}

.demo-site h3 {
  margin-top: 28px;
  font-size: clamp(30px, 3.5vw, 44px);
}

.demo-site p,
.future-apps p {
  max-width: 680px;
  margin: 18px 0 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.72;
}

.future-apps {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(250px, 0.85fr);
  gap: clamp(30px, 5vw, 70px);
  align-items: center;
  background: var(--future-bg), var(--surface);
}

.future-apps > * {
  min-width: 0;
}

.future-apps h3 {
  margin-bottom: 0;
  font-family: var(--font-display);
  font-size: clamp(31px, 3.55vw, 48px);
  font-weight: 950;
  letter-spacing: -0.045em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.future-apps__products {
  display: flex;
  flex-wrap: wrap;
  row-gap: 0.08em;
}

.future-apps__product {
  white-space: nowrap;
}

.future-apps__product + .future-apps__product::before {
  margin: 0 0.22em;
  color: var(--route-de);
  content: "/";
  font-weight: 650;
}

.future-apps__state {
  display: block;
  margin-top: 20px;
  color: var(--accent-strong);
  font-family: var(--font-body);
  font-size: clamp(18px, 1.7vw, 23px);
  font-weight: 850;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.future-apps__visual {
  display: block;
  width: min(100%, 620px);
  height: auto;
  justify-self: center;
  pointer-events: none;
  filter: saturate(86%) contrast(94%);
  opacity: 0.92;
  user-select: none;
}

html[data-theme="dark"] .future-apps__visual {
  filter: saturate(82%) brightness(88%);
  opacity: 0.86;
}

.support {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(520px, 1.18fr);
  column-gap: clamp(50px, 8vw, 112px);
  row-gap: 18px;
  align-items: center;
  padding: clamp(92px, 10vw, 142px) 0;
}

.support__copy {
  min-width: 0;
}

.support h2 {
  font-size: clamp(38px, 4.4vw, 58px);
}

.support h2 > span:first-child,
.support__title-line {
  display: block;
}

.support__title-line b {
  color: var(--accent);
  font: inherit;
}

.support__links {
  display: grid;
  min-width: 0;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.support-link {
  display: grid;
  min-height: 156px;
  overflow: hidden;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 24px 22px 24px 102px;
  isolation: isolate;
  transition: border-color 190ms ease, transform 190ms var(--ease), background-color 190ms ease;
}

.support-link:hover {
  border-color: var(--accent);
  background: var(--surface-raised);
  transform: translateY(-4px);
}

.support-link__icon {
  position: absolute;
  z-index: 0;
  top: 50%;
  left: 12px;
  display: block;
  width: 96px;
  height: 96px;
  pointer-events: none;
  color: var(--accent-strong);
  opacity: 0.14;
  transform: translateY(-50%) rotate(-11deg);
  transform-origin: center;
  transition: opacity 190ms ease, transform 190ms var(--ease);
}

.support-link__icon svg {
  width: 100%;
  height: 100%;
}

.support-link__icon--discord {
  color: #5865f2;
  opacity: 0.13;
}

.support-link:hover .support-link__icon {
  opacity: 0.19;
  transform: translateY(-50%) rotate(-7deg) scale(1.03);
}

.support-link__copy {
  position: relative;
  z-index: 1;
  display: grid;
  min-width: 0;
  gap: 7px;
}

.support-link strong {
  font-family: var(--font-display);
  font-size: clamp(28px, 2.25vw, 34px);
  font-weight: 950;
  letter-spacing: -0.045em;
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.support-link__copy > span {
  color: var(--text-soft);
  font-size: 18px;
  line-height: 1.45;
}

.support-link .action-arrow {
  position: relative;
  z-index: 1;
}

.support-link:nth-child(2) .action-arrow {
  --arrow-color: #5865f2;
}

.support-email {
  display: grid;
  min-width: 0;
  grid-column: 1 / -1;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: 30px 34px;
  border: 1px solid rgb(242 58 33 / 28%);
  border-left: 5px solid var(--accent);
  border-radius: var(--radius);
  background: var(--accent-soft);
}

.support-email > div {
  min-width: 0;
}

.support-email h3 {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.support-email p {
  max-width: 850px;
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 17px;
  line-height: 1.7;
}

.support-email > a {
  display: inline-flex;
  min-width: 0;
  min-height: 52px;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  padding: 0 18px;
  border: 1px solid rgb(242 58 33 / 38%);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--accent-strong);
  font-size: 18px;
  font-weight: 850;
  white-space: nowrap;
  transition: border-color 180ms ease, background-color 180ms ease, color 180ms ease, transform 180ms var(--ease);
}

.support-email > a span:first-child {
  min-width: 0;
  overflow-wrap: anywhere;
}

.support-email > a:hover {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-text);
  transform: translateY(-2px);
}

.support-email > a:active {
  transform: translateY(1px);
}

footer {
  display: flex;
  min-height: 120px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--border);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.footer-brand img {
  width: 30px;
  height: 30px;
  border-radius: 9px;
}

.footer-brand strong {
  font-size: 18px;
}

footer p {
  margin-bottom: 0;
  color: var(--text-soft);
  font-size: 15px;
}

@media (prefers-reduced-motion: no-preference) {
  .topbar::before {
    animation: topbar-fluid 47s cubic-bezier(0.44, 0.06, 0.56, 0.94) infinite alternate;
  }

  body::before {
    animation: grain-drift 29s ease-in-out infinite alternate;
  }

  .hero__copy {
    animation: enter-copy 640ms var(--ease) both;
  }

  .hero__wash::before {
    animation: fluid-field-a 41s cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite alternate;
  }

  .hero__wash::after {
    animation: fluid-field-b 53s cubic-bezier(0.42, 0.08, 0.58, 0.92) infinite alternate;
  }

  .hero-showcase {
    animation: enter-visual 720ms 80ms var(--ease) both;
  }

  .floating-model {
    animation-duration: var(--duration);
    animation-delay: var(--delay);
    animation-timing-function: cubic-bezier(0.45, 0.05, 0.55, 0.95);
    animation-iteration-count: infinite;
    animation-fill-mode: both;
  }

  .float-route--a {
    animation-name: model-orbit-a;
  }

  .float-route--b {
    animation-name: model-orbit-b;
  }

  .float-route--c {
    animation-name: model-orbit-c;
  }

  .float-route--d {
    animation-name: model-orbit-d;
  }

  .float-route--e {
    animation-name: model-orbit-e;
  }

  .float-route--f {
    animation-name: model-orbit-f;
  }

  .scroll-cue b {
    animation: cue-bob 1.8s ease-in-out infinite;
  }

}

@keyframes enter-copy {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
}

@keyframes model-orbit-a {
  0%,
  100% {
    rotate: -2deg;
    translate: 0 0;
  }

  22% {
    rotate: 2deg;
    translate: 18vw -10dvh;
  }

  48% {
    rotate: -1deg;
    translate: 7vw 20dvh;
  }

  74% {
    rotate: 2.5deg;
    translate: -13vw 11dvh;
  }
}

@keyframes model-orbit-b {
  0%,
  100% {
    rotate: 1.5deg;
    translate: 0 0;
  }

  26% {
    rotate: -2deg;
    translate: -17vw 13dvh;
  }

  51% {
    rotate: 2.5deg;
    translate: -6vw 23dvh;
  }

  78% {
    rotate: -1deg;
    translate: 12vw -9dvh;
  }
}

@keyframes model-orbit-c {
  0%,
  100% {
    rotate: -1deg;
    translate: 0 0;
  }

  24% {
    rotate: 2.5deg;
    translate: 15vw 17dvh;
  }

  55% {
    rotate: -2.5deg;
    translate: -12vw 9dvh;
  }

  81% {
    rotate: 1deg;
    translate: -5vw -18dvh;
  }
}

@keyframes model-orbit-d {
  0%,
  100% {
    rotate: 2deg;
    translate: 0 0;
  }

  21% {
    rotate: -1.5deg;
    translate: -20vw -7dvh;
  }

  47% {
    rotate: 2.5deg;
    translate: -10vw 19dvh;
  }

  76% {
    rotate: -2deg;
    translate: 13vw 12dvh;
  }
}

@keyframes model-orbit-e {
  0%,
  100% {
    rotate: -2.5deg;
    translate: 0 0;
  }

  28% {
    rotate: 1deg;
    translate: 11vw -19dvh;
  }

  52% {
    rotate: -1deg;
    translate: 19vw 8dvh;
  }

  79% {
    rotate: 2deg;
    translate: -9vw 18dvh;
  }
}

@keyframes model-orbit-f {
  0%,
  100% {
    rotate: 1deg;
    translate: 0 0;
  }

  23% {
    rotate: -2.5deg;
    translate: -11vw 19dvh;
  }

  49% {
    rotate: 1.5deg;
    translate: 17vw 13dvh;
  }

  73% {
    rotate: -1deg;
    translate: 9vw -16dvh;
  }
}

@keyframes topbar-fluid {
  0% {
    opacity: 0.68;
    transform: translate3d(-0.8%, -0.4%, 0) scale(1.015);
  }

  46% {
    opacity: 0.76;
    transform: translate3d(0.7%, 0.3%, 0) scale(1.028);
  }

  100% {
    opacity: 0.71;
    transform: translate3d(-0.2%, 0.6%, 0) scale(1.02);
  }
}

@keyframes enter-visual {
  from {
    opacity: 0;
    transform: translateX(26px) scale(0.985);
  }
}

@keyframes fluid-field-a {
  0% {
    opacity: 0.64;
    transform: translate3d(-1.1%, -0.7%, 0) scale(1.01);
  }

  34% {
    opacity: 0.7;
    transform: translate3d(0.8%, -0.3%, 0) scale(1.025);
  }

  69% {
    opacity: 0.66;
    transform: translate3d(-0.5%, 0.9%, 0) scale(1.016);
  }

  100% {
    opacity: 0.69;
    transform: translate3d(0.7%, 0.4%, 0) scale(1.03);
  }
}

@keyframes fluid-field-b {
  0% {
    opacity: 0.55;
    transform: translate3d(0.6%, -0.8%, 0) scale(1.018);
  }

  43% {
    opacity: 0.6;
    transform: translate3d(-0.8%, 0.4%, 0) scale(1.032);
  }

  76% {
    opacity: 0.57;
    transform: translate3d(0.4%, 0.8%, 0) scale(1.022);
  }

  100% {
    opacity: 0.61;
    transform: translate3d(-0.3%, -0.2%, 0) scale(1.038);
  }
}

@keyframes grain-drift {
  from {
    transform: translate3d(0, 0, 0);
  }

  to {
    transform: translate3d(0.18%, -0.14%, 0);
  }
}

@keyframes cue-bob {
  50% {
    transform: translateY(4px);
  }
}

@media (max-width: 1160px) {
  .hero__inner {
    grid-template-columns: minmax(0, 0.78fr) minmax(470px, 1.22fr);
    gap: 42px;
  }

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

  .route-tree {
    grid-template-columns: 1fr 1fr;
    padding-left: 0;
  }

  .route-tree::before,
  .route::before,
  .route::after {
    display: none;
  }

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

  .support__copy {
    max-width: 760px;
  }
}

@media (max-width: 900px) {
  .hero__inner {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 44px;
    padding: 58px 0 104px;
  }

  .hero h1,
  html[data-lang="en"] .hero h1 {
    font-size: clamp(62px, 11vw, 90px);
  }

  .hero-showcase {
    min-height: 330px;
  }

  .status-site {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .status-site > a {
    justify-self: start;
  }

  .secondary-sites {
    grid-template-columns: 1fr;
  }

  .future-apps {
    grid-template-columns: minmax(0, 1.1fr) minmax(240px, 0.9fr);
  }
}

@media (max-width: 700px) {
  .topbar__inner,
  .hero__inner,
  .network,
  .support,
  footer {
    width: min(calc(100% - 28px), var(--max-width));
  }

  .hero {
    min-height: auto;
  }

  .hero-showcase {
    min-height: auto;
    gap: 16px;
    padding: 22px;
  }

  .floating-model {
    max-width: min(220px, 38vw);
    scale: calc(var(--scale) * 0.9);
  }

  .network {
    padding-top: 84px;
  }

  .section-heading h2,
  .support h2 {
    font-size: clamp(36px, 10vw, 50px);
  }

  .main-site,
  .route-panel,
  .status-site,
  .demo-site,
  .future-apps {
    padding: 28px;
  }

  .future-apps {
    grid-template-columns: 1fr;
  }

  .future-apps__visual {
    width: min(100%, 720px);
  }

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

  .support-email {
    grid-template-columns: 1fr;
    padding: 28px;
  }

  .support-email > a {
    justify-self: start;
  }
}

@media (max-width: 520px) {
  .topbar__inner {
    min-height: 68px;
    gap: 10px;
  }

  .wordmark {
    gap: 8px;
  }

  .wordmark img {
    width: 36px;
    height: 36px;
    border-radius: 10px;
  }

  .wordmark strong {
    font-size: 18px;
  }

  .topbar__controls {
    gap: 6px;
  }

  .theme-toggle {
    min-height: 40px;
    gap: 6px;
    padding: 0 10px;
  }

  .language-switch {
    min-height: 40px;
  }

  .language-switch button {
    min-width: 35px;
    min-height: 32px;
    padding-inline: 5px;
  }

  .hero__inner {
    padding-top: 46px;
  }

  .hero h1,
  html[data-lang="en"] .hero h1 {
    margin-bottom: 22px;
    font-size: clamp(46px, 18vw, 72px);
  }

  .hero__tagline {
    font-size: clamp(21px, 7.2vw, 28px);
  }

  .hero__principles {
    margin-bottom: 24px;
    font-size: 16px;
  }

  .hero__lead,
  .section-heading p,
  .support__copy > p {
    font-size: 17px;
  }

  .model-sky__head {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .model-sky__promise {
    justify-items: start;
    text-align: left;
  }

  .floating-model {
    max-width: min(190px, 54vw);
    min-height: 49px;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 8px;
    padding: 5px 10px 5px 6px;
    border-radius: 14px;
    opacity: calc(var(--alpha) * 0.82);
    scale: calc(var(--scale) * 0.82);
  }

  .floating-model > img,
  .floating-model .model-avatar {
    width: 38px;
    height: 38px;
    border-radius: 11px;
  }

  .floating-model > span:last-child {
    font-size: 12.5px;
  }

  .model-sky__future {
    padding: 20px;
  }

  .model-sky__future-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .model-sky__future-head strong {
    font-size: clamp(22px, 7vw, 28px);
  }

  .site-heading {
    align-items: flex-start;
  }

  .site-heading img {
    width: 56px;
    height: 56px;
    border-radius: 16px;
  }

  .site-heading h3 {
    font-size: clamp(27px, 9vw, 38px);
  }

  .email-alert,
  .membership {
    padding: 22px;
  }

  .route-panel__head {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .route-panel__head p {
    text-align: left;
  }

  .route-tree {
    grid-template-columns: 1fr;
  }

  .status-site > a {
    width: 100%;
  }

  .demo-site__top {
    flex-wrap: wrap;
  }

  .future-apps h3 {
    font-size: clamp(30px, 9vw, 42px);
  }

  html[data-lang="en"] .future-apps h3 {
    font-size: clamp(24px, 7.2vw, 34px);
  }

  .support {
    padding: 84px 0;
  }

  .support-link {
    min-height: 146px;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 14px;
    padding: 22px 18px 22px 88px;
  }

  .support-link__icon {
    left: 10px;
    width: 84px;
    height: 84px;
  }

  .support-link strong {
    font-size: clamp(26px, 8vw, 31px);
  }

  .support-link__copy > span {
    font-size: 17px;
  }

  .support-email > a {
    width: 100%;
  }

  footer {
    min-height: 120px;
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    gap: 12px;
  }
}

@media (max-width: 360px) {
  .topbar__inner,
  .hero__inner,
  .network,
  .support,
  footer {
    width: calc(100% - 16px);
  }

  .wordmark strong {
    display: none;
  }

  .wordmark img {
    width: 32px;
    height: 32px;
  }

  .hero-showcase {
    padding: 16px;
  }

  .model-sky__brand img {
    width: 46px;
    height: 46px;
  }

  .model-sky__brand strong {
    font-size: 24px;
  }

  .floating-model {
    max-width: 170px;
    min-height: 45px;
    grid-template-columns: 34px minmax(0, 1fr);
    scale: calc(var(--scale) * 0.74);
  }

  .floating-model > img,
  .floating-model .model-avatar {
    width: 34px;
    height: 34px;
    border-radius: 10px;
  }

  .floating-model > span:last-child {
    font-size: 11.5px;
  }

  .topbar__inner {
    gap: 6px;
  }

  .topbar__controls {
    gap: 4px;
  }

  .theme-toggle {
    padding-inline: 6px;
  }

  .theme-toggle__indicator {
    display: none;
  }

  .language-switch {
    padding: 2px;
  }

  .language-switch button {
    min-width: 32px;
    padding-inline: 3px;
  }

  .hero h1,
  html[data-lang="en"] .hero h1 {
    font-size: clamp(42px, 18vw, 58px);
  }

  .hero-showcase,
  .main-site,
  .route-panel,
  .status-site,
  .demo-site,
  .future-apps {
    padding: 20px;
  }

  .support-email {
    padding: 20px;
  }

  .site-heading {
    flex-direction: column;
    gap: 12px;
  }

  .site-heading img {
    width: 48px;
    height: 48px;
  }

  .email-alert,
  .membership {
    padding: 19px;
  }

  .membership h4 {
    font-size: 22px;
  }

  .scroll-cue {
    width: calc(100% - 16px);
    justify-content: center;
    padding-inline: 12px;
    text-align: center;
    white-space: normal;
  }

  .main-site__action,
  .demo-site > a,
  .status-site > a,
  .support-email > a {
    width: 100%;
    min-width: 0;
    gap: 10px;
    white-space: normal;
  }

  .route a {
    padding: 16px;
  }

}

@media (max-width: 240px) {
  .support-link {
    min-height: 0;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 10px;
    padding: 68px 14px 18px;
  }

  .support-link__icon {
    top: 8px;
    left: 14px;
    width: 58px;
    height: 58px;
    transform: rotate(-10deg);
  }

  .support-link:hover .support-link__icon {
    transform: rotate(-7deg) scale(1.03);
  }

  .support-link strong {
    font-size: 24px;
  }

  .support-link__copy > span {
    font-size: 16px;
  }

  .action-arrow {
    width: 28px;
    height: 28px;
  }

  .action-arrow svg {
    width: 22px;
    height: 22px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.001ms !important;
  }
}

@media (prefers-reduced-transparency: reduce) {
  .topbar {
    background: var(--page);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .hero-showcase {
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  .floating-model {
    background: var(--surface);
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  body::before {
    opacity: 0.015;
  }
}