:root {
  --color-canvas: #FFFFFF;
  --color-panel: #F7F7F8;
  --color-panel-strong: #EFEFF1;
  --color-line: #E5E6E8;
  --color-accent: #F7C500;
  --color-accent-deep: #B98E00;
  --color-ink: #131417;
  --color-ink-muted: #5C5F66;
  --color-success: #17A34A;
  --color-warning: #D97706;
  --color-error: #DC2626;
  --color-transparent: transparent;

  --color-console: #131417;
  --color-console-raised: #17181C;
  --color-console-active: #1F2126;
  --color-console-line: #2A2C31;
  --color-console-rule: #24262B;
  --color-console-code: #101114;
  --color-console-text: #E8E9EC;
  --color-console-text-soft: #C9CBD1;
  --color-console-muted: #8B8E96;
  --color-console-faint: #6D7078;
  --color-console-toggle: #2C2E34;
  --color-console-dot: #3A3D43;
  --color-route-start: #8B5CF6;
  --color-route-end: #EC4899;

  --color-flag-red: #C92032;
  --color-flag-deep-red: #A51931;
  --color-flag-blue: #243A78;
  --color-flag-deep-blue: #11457E;
  --color-flag-white: #FFFFFF;
  --color-flag-black: #131417;

  --font-display: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;

  --radius-window: 22px;
  --radius-card: 18px;
  --radius-control: 12px;
  --radius-small: 8px;
  --radius-pill: 999px;

  --shadow-window: 0 24px 70px rgba(19, 20, 23, 0.09);
  --shadow-lift: 0 14px 36px rgba(19, 20, 23, 0.08);
  --shadow-fab: 0 18px 48px rgba(19, 20, 23, 0.16);

  --content-width: 1120px;
  --wide-width: 1280px;
  --gutter: clamp(16px, 4vw, 36px);
  --header-height: 72px;
  --section-space: clamp(72px, 10vw, 136px);
  --motion-fast: 150ms;
  --motion-normal: 420ms;
}

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

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

html.nav-open {
  overflow: hidden;
}

body {
  margin: 0;
  min-width: 320px;
  overflow-x: clip;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main,
section,
article,
aside,
header,
footer,
nav,
div {
  min-width: 0;
}

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

svg[width],
svg[height] {
  flex-shrink: 0;
}

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

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

button {
  border: 0;
}

a {
  color: inherit;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

p,
h1,
h2,
h3,
h4,
ul,
ol,
dl,
dd,
figure,
blockquote,
pre {
  margin-top: 0;
}

ul,
ol {
  padding-left: 1.25em;
}

code,
kbd,
samp {
  font-family: var(--font-mono);
}

:not(pre) > code {
  overflow-wrap: anywhere;
  border-radius: var(--radius-small);
  background: var(--color-panel-strong);
  color: var(--color-ink);
  padding: 0.12em 0.38em;
  font-size: 0.9em;
}

pre {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  border: 1px solid var(--color-console-line);
  border-radius: var(--radius-control);
  background: var(--color-console-code);
  color: var(--color-console-text-soft);
  padding: 18px;
  font: 0.86rem/1.75 var(--font-mono);
  -webkit-overflow-scrolling: touch;
}

pre code {
  color: inherit;
  white-space: pre;
}

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

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

.wrap,
.wide-wrap,
.reading-wrap {
  width: 100%;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.wrap {
  max-width: min(100%, calc(var(--content-width) + var(--gutter) * 2));
}

.wide-wrap {
  max-width: min(100%, calc(var(--wide-width) + var(--gutter) * 2));
}

.reading-wrap {
  max-width: min(100%, calc(820px + var(--gutter) * 2));
}

.section {
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
}

.section-compact {
  padding-top: clamp(52px, 7vw, 88px);
  padding-bottom: clamp(52px, 7vw, 88px);
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(30px, 5vw, 54px);
}

.eyebrow {
  margin-bottom: 10px;
  color: var(--color-ink-muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4,
.display-title {
  font-family: var(--font-display);
  color: var(--color-ink);
  text-wrap: balance;
}

h1,
.display-title {
  margin-bottom: 20px;
  font-size: clamp(34px, 3.3vw, 48px);
  font-weight: 900;
  line-height: 1.16;
  letter-spacing: -0.02em;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(27px, 3vw, 40px);
  font-weight: 850;
  line-height: 1.2;
  letter-spacing: -0.018em;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.012em;
}

h4 {
  margin-bottom: 10px;
  font-size: 1rem;
  font-weight: 800;
}

.keyword-lock {
  white-space: nowrap;
}

@media (max-width: 640px) {
  .keyword-lock {
    white-space: normal;
  }
}

.lede {
  max-width: 700px;
  color: var(--color-ink-muted);
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.75;
}

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

.mono {
  font-family: var(--font-mono);
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--color-transparent);
  border-radius: var(--radius-pill);
  padding: 11px 25px;
  background: var(--color-ink);
  color: var(--color-canvas);
  font-weight: 800;
  line-height: 1.35;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform var(--motion-fast) ease,
    background-color var(--motion-fast) ease,
    border-color var(--motion-fast) ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:active {
  transform: translateY(0);
}

.button-secondary {
  border-color: var(--color-line);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.button-secondary:hover {
  border-color: var(--color-ink-muted);
}

.button-accent {
  background: var(--color-accent);
  color: var(--color-ink);
}

.button[aria-disabled="true"],
.button:disabled {
  background: var(--color-panel-strong);
  color: var(--color-ink-muted);
  cursor: not-allowed;
  transform: none;
}

.badge,
.status-pill,
.platform-chip {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  font-size: 0.82rem;
  font-weight: 750;
  line-height: 1.35;
}

.badge {
  padding: 6px 12px;
  background: var(--color-accent);
  color: var(--color-ink);
}

.badge-outline {
  border: 1px solid var(--color-line);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.badge-muted {
  background: var(--color-panel-strong);
  color: var(--color-ink);
}

.status-dot,
.badge-dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-success);
}

.card,
.panel {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-card);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.card {
  padding: clamp(20px, 3vw, 30px);
}

.panel {
  padding: clamp(22px, 4vw, 40px);
  background: var(--color-panel);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.bento-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr 0.8fr;
  grid-template-areas:
    "main platform core"
    "main protocol note";
  gap: 14px;
}

.bento-main {
  grid-area: main;
}

.bento-platform {
  grid-area: platform;
}

.bento-core {
  grid-area: core;
}

.bento-protocol {
  grid-area: protocol;
}

.bento-note {
  grid-area: note;
}

.bento-tile {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-window);
  background: var(--color-panel);
  color: var(--color-ink);
  padding: clamp(20px, 3vw, 34px);
  transition: transform var(--motion-fast) ease;
}

.bento-tile:nth-child(3n) {
  background: var(--color-panel-strong);
}

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

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-control);
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  background: var(--color-canvas);
  color: var(--color-ink);
}

.data-table th,
.data-table td {
  border-bottom: 1px solid var(--color-line);
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
}

.data-table th {
  background: var(--color-panel);
  color: var(--color-ink);
  font-size: 0.82rem;
  font-weight: 800;
}

.data-table tr:last-child td {
  border-bottom: 0;
}

.prose {
  color: var(--color-ink);
}

.prose > * + * {
  margin-top: 1.2em;
}

.prose h2 {
  margin-top: 2.5em;
}

.prose h3 {
  margin-top: 2em;
}

.prose a {
  text-decoration: underline;
}

.prose li + li {
  margin-top: 0.5em;
}

.prose > .data-table {
  display: block;
  max-width: 100%;
  min-width: 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--motion-normal) ease,
    transform var(--motion-normal) ease;
}

.reveal.shown {
  opacity: 1;
  transform: none;
}

.tilt,
.tilt-card {
  transform: rotate(-0.35deg);
}

.site-head {
  position: relative;
  z-index: 60;
  border-bottom: 1px solid var(--color-transparent);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.site-head-inner {
  display: flex;
  width: 100%;
  max-width: min(100%, calc(1280px + var(--gutter) * 2));
  height: var(--header-height);
  margin-inline: auto;
  padding-inline: var(--gutter);
  align-items: center;
  gap: clamp(18px, 3vw, 40px);
}

.site-brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 850;
  letter-spacing: -0.01em;
  text-decoration: none;
}

.site-brand img {
  width: 27px;
  height: 27px;
  flex-shrink: 0;
}

.desktop-nav {
  display: flex;
  margin-inline: auto;
  align-self: stretch;
  align-items: center;
  gap: 3px;
}

.desktop-nav a {
  position: relative;
  display: flex;
  height: 100%;
  align-items: center;
  padding-inline: 14px;
  color: var(--color-ink-muted);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav a.is-active {
  color: var(--color-ink);
}

.desktop-nav a.is-active {
  font-weight: 800;
}

.desktop-nav a.is-active::after {
  position: absolute;
  right: 14px;
  bottom: 13px;
  left: 14px;
  height: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.header-tools {
  position: relative;
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
}

.language-switch {
  position: relative;
}

.language-trigger {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 7px 13px;
  background: var(--color-canvas);
  color: var(--color-ink-muted);
  cursor: pointer;
}

.language-trigger:hover {
  border-color: var(--color-ink-muted);
  color: var(--color-ink);
}

.language-short {
  display: none;
}

.language-menu {
  position: absolute;
  top: calc(100% + 9px);
  right: 0;
  z-index: 75;
  width: 178px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-control);
  padding: 7px;
  background: var(--color-canvas);
  color: var(--color-ink);
  box-shadow: var(--shadow-lift);
}

.language-menu[hidden] {
  display: none;
}

.language-menu a {
  display: flex;
  width: 100%;
  min-height: 42px;
  align-items: center;
  border-radius: var(--radius-small);
  padding: 8px 10px;
  text-decoration: none;
}

.language-menu a:hover,
.language-menu a[aria-current="true"] {
  background: var(--color-panel);
  color: var(--color-ink);
}

.menu-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-panel);
  color: var(--color-ink);
  cursor: pointer;
}

.menu-toggle-lines,
.menu-toggle-lines::before,
.menu-toggle-lines::after {
  display: block;
  width: 19px;
  height: 2px;
  border-radius: var(--radius-pill);
  background: var(--color-ink);
}

.menu-toggle-lines {
  position: relative;
}

.menu-toggle-lines::before,
.menu-toggle-lines::after {
  position: absolute;
  left: 0;
  content: "";
}

.menu-toggle-lines::before {
  top: -6px;
}

.menu-toggle-lines::after {
  top: 6px;
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines {
  background: var(--color-transparent);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines::before {
  top: 0;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-toggle-lines::after {
  top: 0;
  transform: rotate(-45deg);
}

.mobile-drawer {
  display: none;
}

.mobile-veil {
  display: none;
}

.site-footer {
  margin-top: var(--section-space);
  border-top: 1px solid var(--color-line);
  background: var(--color-canvas);
  color: var(--color-ink);
}

.footer-inner {
  width: 100%;
  max-width: min(100%, calc(1280px + var(--gutter) * 2));
  margin-inline: auto;
  padding: 64px var(--gutter) 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.8fr 1.25fr 0.8fr;
  gap: 42px;
}

.footer-brand {
  max-width: 330px;
}

.footer-brand .site-brand {
  margin-bottom: 16px;
}

.footer-brand p,
.footer-col a {
  color: var(--color-ink-muted);
}

.footer-col h2 {
  margin-bottom: 14px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.footer-links a {
  display: inline-block;
  padding-block: 3px;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-ink);
}

.footer-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-keywords a {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-pill);
  padding: 6px 10px;
  background: var(--color-canvas);
  color: var(--color-ink);
  font-size: 0.78rem;
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  margin-top: 48px;
  padding-top: 22px;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border-top: 1px solid var(--color-line);
  color: var(--color-ink-muted);
  font-size: 0.82rem;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-stage {
  overflow-x: clip;
  padding-top: 34px;
}

.hero-copy {
  max-width: 920px;
  margin-inline: auto;
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  padding: 7px 18px;
  background: var(--color-accent);
  color: var(--color-ink);
  font-size: 0.84rem;
  font-weight: 800;
}

.hero-badge .badge-dot {
  background: var(--color-ink);
}

.hero-copy h1 {
  max-width: 900px;
  margin: 22px auto 0;
}

.hero-copy .hero-lede {
  max-width: 650px;
  margin: 16px auto 0;
  color: var(--color-ink-muted);
  font-size: 1.03rem;
  line-height: 1.75;
}

.hero-copy .hero-lede strong {
  color: var(--color-ink);
}

.hero-copy .button-row {
  margin-top: 26px;
  justify-content: center;
}

.trust-strips {
  display: flex;
  margin-top: 30px;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.chip-strip {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 9px;
}

.strip-label {
  margin-right: 2px;
  color: var(--color-ink-muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.platform-chip {
  border: 1px solid var(--color-line);
  padding: 7px 13px;
  background: var(--color-canvas);
  color: var(--color-ink);
  text-decoration: none;
}

.platform-chip svg {
  width: 15px;
  height: 15px;
  color: var(--color-ink-muted);
}

.flag-mark {
  width: 21px;
  height: 15px;
  flex-shrink: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: 3px;
}

.flag-red {
  fill: var(--color-flag-red);
}

.flag-deep-red {
  fill: var(--color-flag-deep-red);
}

.flag-blue {
  fill: var(--color-flag-blue);
}

.flag-deep-blue {
  fill: var(--color-flag-deep-blue);
}

.flag-white {
  fill: var(--color-flag-white);
}

.flag-black {
  fill: var(--color-flag-black);
}

.device-wrap {
  width: 100%;
  max-width: min(100%, calc(1320px + var(--gutter) * 2));
  margin: 42px auto 0;
  padding-inline: var(--gutter);
}

.device-window {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--color-console-line);
  border-bottom: 0;
  border-radius: var(--radius-window) var(--radius-window) 0 0;
  background: var(--color-console);
  color: var(--color-console-text);
  box-shadow: var(--shadow-window);
}

.window-bar {
  display: flex;
  height: 48px;
  padding-inline: 22px;
  align-items: center;
  gap: 16px;
  border-bottom: 1px solid var(--color-console-rule);
}

.window-dots {
  display: flex;
  flex-shrink: 0;
  gap: 8px;
}

.window-dots i {
  width: 11px;
  height: 11px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-console-dot);
}

.window-title {
  color: var(--color-console-muted);
  font-size: 0.8rem;
  font-weight: 650;
}

.window-state {
  display: inline-flex;
  margin-left: auto;
  align-items: center;
  gap: 7px;
  color: var(--color-console-muted);
  font-size: 0.76rem;
}

.window-body {
  position: relative;
  display: grid;
  grid-template-columns: 236px minmax(0, 1fr);
}

.window-route {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

.window-route path {
  fill: none;
  stroke: url("#route-gradient");
  stroke-linecap: round;
  stroke-width: 2.2;
}

.window-side,
.window-main {
  position: relative;
  z-index: 2;
  min-width: 0;
}

.window-side {
  border-right: 1px solid var(--color-console-rule);
  background: var(--color-console-raised);
  padding: 20px 14px 28px;
}

.side-label {
  margin: 0 0 8px;
  padding-inline: 12px;
  color: var(--color-console-faint);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.09em;
}

.side-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.side-list + .side-label {
  margin-top: 22px;
}

.side-item {
  position: relative;
  display: flex;
  min-height: 37px;
  margin-bottom: 2px;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius-small);
  padding: 8px 12px;
  color: var(--color-console-muted);
  font-size: 0.82rem;
  font-weight: 550;
}

.side-item svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  color: var(--color-console-faint);
}

.side-item.is-current {
  background: var(--color-console-active);
  color: var(--color-console-text);
}

.side-item.is-current::before {
  position: absolute;
  top: 9px;
  bottom: 9px;
  left: 0;
  width: 3px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  content: "";
}

.side-item .status-dot {
  margin-left: auto;
}

.window-main {
  padding: 24px 34px 30px;
}

.window-main-head {
  display: flex;
  margin-bottom: 6px;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
}

.window-main-head h2 {
  margin: 0;
  color: var(--color-console-text);
  font-size: 0.94rem;
  letter-spacing: 0.01em;
}

.window-note {
  color: var(--color-console-faint);
  font-size: 0.72rem;
}

.setting-row {
  display: flex;
  min-width: 0;
  padding-block: 13px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--color-console-rule);
}

.setting-copy {
  min-width: 0;
}

.setting-name {
  color: var(--color-console-text);
  font-size: 0.85rem;
  font-weight: 650;
}

.setting-sub {
  margin-top: 2px;
  color: var(--color-console-faint);
  font-size: 0.72rem;
}

.toggle {
  position: relative;
  width: 40px;
  height: 22px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-console-toggle);
}

.toggle::after {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--color-console-faint);
  content: "";
}

.toggle.is-on {
  background: var(--color-accent);
}

.toggle.is-on::after {
  right: 3px;
  left: auto;
  background: var(--color-console);
}

.value-chip {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--color-console-line);
  border-radius: var(--radius-small);
  padding: 5px 12px;
  background: var(--color-console-active);
  color: var(--color-console-text-soft);
  font: 0.76rem var(--font-mono);
}

.config-block {
  margin-top: 20px;
  overflow: hidden;
  border: 1px solid var(--color-console-rule);
  border-radius: var(--radius-control);
  background: var(--color-console-code);
  color: var(--color-console-text-soft);
}

.config-head {
  display: flex;
  padding: 8px 16px;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-console-rule);
  color: var(--color-console-faint);
  font: 0.7rem var(--font-mono);
}

.config-block pre {
  margin: 0;
  border: 0;
  border-radius: 0;
  padding: 13px 18px 18px;
  background: var(--color-console-code);
  color: var(--color-console-muted);
  font-size: 0.76rem;
}

.code-key {
  color: var(--color-console-muted);
}

.code-string,
.code-number {
  color: var(--color-console-text-soft);
}

@media (max-width: 1040px) {
  .desktop-nav a {
    padding-inline: 9px;
    font-size: 0.82rem;
  }

  .desktop-nav a.is-active::after {
    right: 9px;
    left: 9px;
  }

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

@media (max-width: 860px) {
  .desktop-nav,
  .language-switch {
    display: none;
  }

  .header-tools {
    margin-left: auto;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .mobile-veil {
    position: fixed;
    inset: var(--header-height) 0 0;
    z-index: 40;
    background: rgba(19, 20, 23, 0.32);
  }

  .mobile-veil.is-open {
    display: block;
  }

  .mobile-drawer {
    position: absolute;
    top: var(--header-height);
    right: 0;
    left: 0;
    z-index: 65;
    max-height: calc(100dvh - var(--header-height));
    overflow-y: auto;
    overscroll-behavior: contain;
    border-top: 1px solid var(--color-line);
    border-bottom: 1px solid var(--color-line);
    background: var(--color-canvas);
    color: var(--color-ink);
    padding: 12px var(--gutter) 22px;
  }

  .mobile-drawer.is-open {
    display: block;
  }

  .mobile-drawer ul {
    margin: 0;
    padding: 0;
    list-style: none;
  }

  .mobile-drawer a {
    display: flex;
    width: 100%;
    min-height: 48px;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--color-line);
    padding: 11px 4px;
    color: var(--color-ink);
    text-decoration: none;
  }

  .mobile-drawer a.is-active::after {
    width: 28px;
    height: 3px;
    flex-shrink: 0;
    border-radius: var(--radius-pill);
    background: var(--color-accent);
    content: "";
  }

  .mobile-language-title {
    margin: 18px 4px 4px;
    color: var(--color-ink-muted);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.08em;
  }

  .mobile-language-list {
    display: grid;
    grid-template-columns: 1fr;
  }

  .window-body {
    grid-template-columns: 1fr;
  }

  .window-side,
  .window-route {
    display: none;
  }

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

  .bento-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-areas:
      "main main"
      "platform core"
      "protocol note";
  }
}

@media (max-width: 640px) {
  :root {
    --header-height: 64px;
  }

  h1,
  .display-title {
    font-size: clamp(24px, 7.6vw, 30px);
    line-height: 1.18;
    letter-spacing: -0.018em;
  }

  h2 {
    font-size: clamp(24px, 7vw, 30px);
  }

  .site-head-inner {
    gap: 12px;
  }

  .site-brand {
    min-width: 0;
    flex-shrink: 1;
    font-size: 0.95rem;
  }

  .site-brand span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .site-brand img {
    width: 25px;
    height: 25px;
  }

  .language-full {
    display: none;
  }

  .language-short {
    display: inline;
  }

  .card-grid,
  .footer-grid,
  .bento-grid {
    grid-template-columns: 1fr;
  }

  .bento-grid {
    grid-template-areas:
      "main"
      "platform"
      "core"
      "protocol"
      "note";
  }

  .button-row {
    justify-content: stretch;
  }

  .button-row .button {
    flex: 1 1 150px;
  }

  .hero-stage {
    padding-top: 26px;
  }

  .hero-badge {
    padding-inline: 13px;
    font-size: 0.74rem;
  }

  .hero-copy h1 {
    margin-top: 18px;
  }

  .hero-copy .hero-lede {
    font-size: 0.94rem;
  }

  .trust-strips {
    margin-top: 24px;
  }

  .chip-strip {
    gap: 7px;
  }

  .strip-label {
    flex-basis: 100%;
    margin-right: 0;
  }

  .platform-chip {
    padding: 6px 10px;
    font-size: 0.75rem;
  }

  .device-wrap {
    margin-top: 30px;
  }

  .window-bar {
    padding-inline: 15px;
  }

  .window-title {
    overflow-wrap: anywhere;
  }

  .window-main {
    padding: 18px 16px 22px;
  }

  .window-main-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 2px;
  }

  .setting-row {
    gap: 12px;
  }

  .setting-sub {
    overflow-wrap: anywhere;
  }

  .config-block pre {
    padding-inline: 14px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .tilt,
  .tilt-card {
    transform: none;
  }

  [class*="glow"],
  [class*="orb"],
  [class*="watermark"],
  [class*="decor"] {
    max-width: 100%;
  }
}

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

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}