:root {
  --color-page: #FFFFFF;
  --color-panel: #F6F7FB;
  --color-panel-strong: #EEF0F9;
  --color-border: #E4E6F2;
  --color-accent: #2E36DE;
  --color-accent-dark: #1F26A8;
  --color-rose: #E8467C;
  --color-text: #12142B;
  --color-muted: #5A5F7A;
  --color-success: #159A6A;
  --color-warning: #D98A0B;
  --color-error: #D6304F;
  --color-white: #FFFFFF;
  --color-overlay: rgba(18, 20, 43, .42);
  --color-accent-soft: rgba(46, 54, 222, .08);
  --color-accent-mid: rgba(46, 54, 222, .16);
  --color-rose-soft: rgba(232, 70, 124, .12);
  --color-arc-accent: rgba(46, 54, 222, .34);
  --color-arc-rose: rgba(232, 70, 124, .30);
  --color-shadow: rgba(18, 20, 43, .24);
  --color-shadow-accent: rgba(46, 54, 222, .16);
  --gradient-title: linear-gradient(92deg, var(--color-accent) 0%, var(--color-accent) 38%, var(--color-rose) 100%);
  --gradient-stage: linear-gradient(160deg, var(--color-panel) 0%, var(--color-panel-strong) 100%);
  --gradient-arc: linear-gradient(90deg, var(--color-arc-accent), var(--color-arc-rose));
  --font-display: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Hiragino Sans', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
  --font-body: 'Inter', 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Hiragino Sans', 'Apple SD Gothic Neo', 'Malgun Gothic', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
  --radius-card: 24px;
  --radius-inner: 20px;
  --radius-phone: 12px;
  --radius-control: 8px;
  --radius-pill: 999px;
  --shadow-window: 0 44px 84px -34px rgba(18, 20, 43, .30), 0 14px 30px -14px var(--color-shadow-accent), 0 1px 2px rgba(18, 20, 43, .06);
  --shadow-card: 0 26px 52px -26px var(--color-shadow), 0 1px 2px rgba(18, 20, 43, .05);
  --shadow-pill: 0 12px 26px -12px rgba(18, 20, 43, .30);
  --shadow-button: 0 12px 28px -12px rgba(18, 20, 43, .40);
  --header-height: 72px;
  --content-max: 1240px;
  --reading-max: 820px;
  --gutter: clamp(16px, 4vw, 40px);
  --section-space: clamp(72px, 10vw, 136px);
  --transition-fast: 150ms ease;
  --transition-reveal: 620ms cubic-bezier(.2, .75, .25, 1);
}

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

html {
  min-width: 320px;
  scroll-behavior: smooth;
  background: var(--color-page);
}

html.nav-open {
  overflow: hidden;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-page);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  overflow-x: clip;
  -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[aria-hidden="true"] {
  flex-shrink: 0;
}

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

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

button {
  cursor: pointer;
}

a {
  color: var(--color-accent);
  text-decoration-thickness: .08em;
  text-underline-offset: .18em;
}

a:hover {
  color: var(--color-accent-dark);
}

p,
ul,
ol,
dl,
figure,
blockquote {
  margin-top: 0;
}

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

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

h1 {
  margin: 0 0 20px;
  font-size: clamp(34px, 3.4vw, 48px);
  font-weight: 800;
  letter-spacing: -.015em;
  line-height: 1.14;
}

h2 {
  margin: 0 0 22px;
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 750;
  letter-spacing: -.012em;
  line-height: 1.2;
}

h3 {
  margin: 0 0 14px;
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  line-height: 1.3;
}

h4 {
  margin: 0 0 10px;
  font-size: 18px;
  line-height: 1.4;
}

.nowrap-term {
  white-space: nowrap;
}

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

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

:not(pre) > code {
  padding: .12em .4em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-panel);
  color: var(--color-text);
  font-size: .9em;
  overflow-wrap: anywhere;
}

pre {
  max-width: 100%;
  margin: 22px 0;
  padding: 20px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  background: var(--color-text);
  color: var(--color-white);
  line-height: 1.7;
  -webkit-overflow-scrolling: touch;
}

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

hr {
  height: 1px;
  margin: 56px 0;
  border: 0;
  background: var(--color-border);
}

.wrap {
  width: 100%;
  max-width: calc(var(--content-max) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.reading-wrap {
  width: 100%;
  max-width: calc(var(--reading-max) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-top: var(--section-space);
  padding-bottom: var(--section-space);
  overflow-x: clip;
}

.section-panel {
  background: var(--color-panel);
  color: var(--color-text);
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(36px, 6vw, 64px);
}

.section-heading > p {
  margin-bottom: 0;
  color: var(--color-muted);
  font-size: 18px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: var(--color-accent);
  font-size: 13px;
  font-weight: 650;
  letter-spacing: .02em;
}

.eyebrow-dot {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  box-shadow: inset 0 0 0 2px var(--color-page), inset 0 0 0 5px var(--color-rose);
}

.gradient-text {
  background: var(--gradient-title);
  background-clip: text;
  color: transparent;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lead {
  color: var(--color-muted);
  font-size: clamp(17px, 1.6vw, 19px);
  line-height: 1.75;
}

.lead strong {
  color: var(--color-text);
  font-weight: 650;
}

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

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

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

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 650;
  line-height: 1.2;
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button:focus-visible,
.nav-toggle:focus-visible,
.lang-button:focus-visible {
  outline: 3px solid var(--color-accent-mid);
  outline-offset: 3px;
}

.button-primary {
  padding-right: 8px;
  background: var(--color-text);
  color: var(--color-white);
  box-shadow: var(--shadow-button);
}

.button-primary:hover {
  background: var(--color-accent-dark);
  color: var(--color-white);
}

.button-outline {
  border-color: var(--color-accent);
  background: var(--color-page);
  color: var(--color-accent);
}

.button-outline:hover {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

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

.button-soft:hover {
  background: var(--color-accent-mid);
  color: var(--color-accent-dark);
}

.button[aria-disabled="true"],
.button:disabled {
  background: var(--color-panel-strong);
  color: var(--color-muted);
  box-shadow: none;
  cursor: not-allowed;
  opacity: .72;
  transform: none;
}

.button-arrow {
  width: 34px;
  height: 34px;
  display: inline-flex;
  flex: 0 0 34px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-white);
  color: var(--color-text);
}

.button-arrow svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.panel,
.card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-page);
  color: var(--color-text);
}

.card {
  padding: clamp(22px, 3vw, 32px);
  box-shadow: var(--shadow-card);
}

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

.badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.badge {
  max-width: 100%;
  min-height: 32px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 12px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.35;
}

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

.badge-accent {
  border-color: var(--color-accent-mid);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.badge-rose {
  border-color: var(--color-rose-soft);
  background: var(--color-rose-soft);
  color: var(--color-text);
}

.badge-dark {
  border-color: var(--color-text);
  background: var(--color-text);
  color: var(--color-white);
}

.badge-success {
  border-color: var(--color-success);
  background: var(--color-page);
  color: var(--color-text);
}

.data-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  background: var(--color-page);
  color: var(--color-text);
}

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

.data-table th {
  background: var(--color-panel);
  color: var(--color-text);
  font-weight: 700;
}

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

.table-scroll {
  max-width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-inner);
  -webkit-overflow-scrolling: touch;
}

.table-scroll .data-table {
  min-width: 680px;
}

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

.prose p,
.prose li {
  color: var(--color-muted);
}

.prose strong {
  color: var(--color-text);
}

.prose h2 {
  margin-top: 64px;
  scroll-margin-top: 100px;
}

.prose h3 {
  margin-top: 38px;
  scroll-margin-top: 100px;
}

.prose li + li {
  margin-top: 8px;
}

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

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--transition-reveal), transform var(--transition-reveal);
}

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

.site-header {
  position: relative;
  z-index: 100;
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-page);
  color: var(--color-text);
}

.header-shell {
  width: 100%;
  max-width: min(100%, calc(1280px + var(--gutter) * 2));
  height: var(--header-height);
  display: flex;
  align-items: center;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.site-brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 750;
  letter-spacing: .01em;
  text-decoration: none;
}

.site-brand:hover {
  color: var(--color-text);
}

.site-brand img {
  width: 34px;
  height: 34px;
  flex: 0 0 34px;
}

.desktop-nav {
  display: flex;
  align-self: stretch;
  align-items: center;
  margin-left: auto;
}

.desktop-nav a {
  position: relative;
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding-inline: 15px;
  color: var(--color-muted);
  font-size: 15px;
  font-weight: 550;
  text-decoration: none;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  color: var(--color-text);
}

.desktop-nav a[aria-current="page"] {
  font-weight: 680;
}

.desktop-nav a[aria-current="page"]::after {
  position: absolute;
  right: 15px;
  bottom: -1px;
  left: 15px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--color-accent);
  content: "";
}

.header-tools {
  position: relative;
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 8px;
  margin-left: 18px;
}

.lang-button {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding-inline: 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-text);
  font-size: 13.5px;
}

.lang-button:hover {
  border-color: var(--color-accent);
}

.lang-caret {
  color: var(--color-muted);
  font-size: 11px;
}

.lang-short {
  display: none;
}

.lang-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 4;
  width: 180px;
  padding: 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  background: var(--color-page);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
}

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

.lang-menu a {
  min-height: 42px;
  display: flex;
  align-items: center;
  padding-inline: 12px;
  border-radius: var(--radius-control);
  color: var(--color-text);
  font-size: 14px;
  text-decoration: none;
}

.lang-menu a:hover,
.lang-menu a[aria-current="true"] {
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
}

.nav-toggle {
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  background: var(--color-page);
  color: var(--color-text);
}

.nav-toggle-lines,
.nav-toggle-lines::before,
.nav-toggle-lines::after {
  width: 18px;
  height: 2px;
  display: block;
  border-radius: var(--radius-pill);
  background: currentColor;
}

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

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

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

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

.mobile-nav {
  display: none;
}

.nav-veil {
  display: none;
}

.site-footer {
  padding-top: 72px;
  background: var(--color-text);
  color: var(--color-white);
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(250px, 1.2fr) repeat(3, minmax(150px, 1fr));
  gap: 44px;
}

.footer-brand {
  max-width: 350px;
}

.footer-brand .site-brand {
  margin-bottom: 18px;
  color: var(--color-white);
}

.footer-brand p {
  color: var(--color-panel-strong);
}

.footer-title {
  margin: 0 0 15px;
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 14px;
  font-weight: 700;
}

.footer-links {
  display: grid;
  gap: 8px;
}

.footer-links a {
  display: inline-flex;
  width: fit-content;
  color: var(--color-panel-strong);
  font-size: 14px;
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-white);
  text-decoration: underline;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 54px;
  padding-top: 22px;
  padding-bottom: 24px;
  border-top: 1px solid var(--color-muted);
  color: var(--color-panel-strong);
  font-size: 13px;
}

.footer-legal,
.footer-languages {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.footer-bottom a {
  color: var(--color-panel-strong);
  text-decoration: none;
}

.footer-bottom a:hover {
  color: var(--color-white);
}

.hero-split {
  position: relative;
  padding-top: 60px;
  padding-bottom: 56px;
  overflow-x: clip;
}

.hero-grid {
  display: grid;
  grid-template-columns: 460px minmax(0, 1fr);
  align-items: center;
  gap: 64px;
}

.hero-copy {
  max-width: 470px;
}

.hero-copy h1 {
  margin-top: 20px;
}

.hero-copy .lead {
  margin-bottom: 0;
  font-size: 17px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 10px;
  margin: 18px 0 0;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.6;
}

.hero-facts b {
  color: var(--color-text);
  font-weight: 550;
}

.hero-facts i {
  width: 4px;
  height: 4px;
  flex: 0 0 4px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: .55;
}

.hero-actions {
  margin-top: 30px;
  margin-bottom: 32px;
}

.platform-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.platform-list > li,
.platform-list > a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 13px 4px 5px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-page);
  color: var(--color-text);
  font-size: 13px;
  font-weight: 550;
  text-decoration: none;
}

.platform-list .platform-label {
  min-height: auto;
  padding: 0 4px 0 0;
  border: 0;
  color: var(--color-muted);
  font-size: 12.5px;
}

.platform-icon {
  width: 26px;
  height: 26px;
  display: inline-flex;
  flex: 0 0 26px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-control);
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.platform-icon svg {
  width: 14px;
  height: 14px;
}

.hero-stage {
  position: relative;
  height: 660px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--gradient-stage);
  color: var(--color-text);
}

.hero-stage::before {
  position: absolute;
  inset: 0;
  background: radial-gradient(56% 48% at 42% 52%, var(--color-page) 0%, transparent 70%);
  content: "";
  opacity: .9;
}

.stage-arcs {
  position: absolute;
  inset: -12%;
  border: 1px solid var(--color-arc-accent);
  border-radius: 50%;
}

.stage-arcs::before,
.stage-arcs::after {
  position: absolute;
  border: 1px solid var(--color-arc-rose);
  border-radius: 50%;
  content: "";
}

.stage-arcs::before {
  inset: 11%;
}

.stage-arcs::after {
  inset: 23%;
  border-color: var(--color-arc-accent);
}

.mock-window {
  position: absolute;
  top: 160px;
  left: 56px;
  z-index: 3;
  width: 500px;
  height: 360px;
  display: grid;
  grid-template: 1fr 32px / 118px 1fr;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  background: var(--color-page);
  color: var(--color-text);
  box-shadow: var(--shadow-window);
  font-size: 12px;
}

.mock-sidebar {
  padding: 14px 10px;
  border-right: 1px solid var(--color-border);
}

.mock-brand {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 2px 6px 14px;
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 750;
}

.mock-brand-mark {
  width: 14px;
  height: 14px;
  flex: 0 0 14px;
  border: 1.5px solid var(--color-accent);
  border-radius: 5px;
}

.mock-sidebar li {
  height: 30px;
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 4px;
  padding-inline: 9px;
  border-radius: var(--radius-control);
  color: var(--color-muted);
  font-weight: 550;
}

.mock-sidebar li::before {
  width: 6px;
  height: 6px;
  flex: 0 0 6px;
  border-radius: 2px;
  background: currentColor;
  content: "";
  opacity: .45;
}

.mock-sidebar li.is-current {
  background: var(--color-accent);
  color: var(--color-white);
}

.mock-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 12px 14px 0;
}

.mock-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 14px;
}

.mock-search {
  height: 28px;
  flex: 1;
  display: flex;
  align-items: center;
  padding-inline: 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-panel);
  color: var(--color-muted);
}

.mock-tool-button {
  height: 28px;
  display: inline-flex;
  align-items: center;
  padding-inline: 9px;
  border: 1px solid var(--color-accent-mid);
  border-radius: var(--radius-control);
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  font-size: 11px;
  font-weight: 650;
  white-space: nowrap;
}

.mock-table {
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
}

.mock-table-head,
.mock-table-row {
  display: grid;
  grid-template-columns: 1.1fr 2fr .7fr 1fr 1fr;
  align-items: center;
  gap: 10px;
  padding-inline: 12px;
}

.mock-table-head {
  height: 30px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-muted);
  font-size: 10px;
  font-weight: 650;
}

.mock-table-row {
  height: 38px;
  border-bottom: 1px solid var(--color-border);
}

.mock-table-row:last-child {
  border-bottom: 0;
}

.mock-table-row i {
  width: 75%;
  height: 8px;
  display: block;
  border-radius: var(--radius-pill);
  background: var(--color-panel-strong);
}

.mock-table-row i:nth-child(2) {
  width: 88%;
}

.mock-status {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 22px;
  padding-inline: 14px;
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.status-dot {
  width: 7px;
  height: 7px;
  display: inline-block;
  flex: 0 0 7px;
  margin-right: 7px;
  border-radius: 50%;
  background: var(--color-success);
}

.mock-phone {
  position: absolute;
  top: 372px;
  left: 24px;
  z-index: 4;
  width: 150px;
  height: 268px;
  padding: 10px 12px 12px;
  overflow: hidden;
  transform: rotate(-4deg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-phone);
  background: var(--color-page);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  font-size: 11.5px;
}

.mock-phone-bar {
  width: 34px;
  height: 4px;
  margin: 0 auto 12px;
  border-radius: var(--radius-pill);
  background: var(--color-panel-strong);
}

.mock-phone-title {
  margin-bottom: 10px;
  font-family: var(--font-display);
  font-weight: 750;
}

.mock-phone li {
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--color-border);
}

.mock-phone li::after {
  color: var(--color-muted);
  content: "›";
}

.mock-connect {
  position: absolute;
  bottom: 16px;
  left: 50%;
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  transform: translateX(-50%);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  background: var(--color-page);
  color: var(--color-accent);
  font-size: 23px;
}

.mock-subscription {
  position: absolute;
  top: 84px;
  left: 466px;
  z-index: 2;
  width: 236px;
  padding: 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-inner);
  background: var(--color-page);
  color: var(--color-text);
  box-shadow: var(--shadow-card);
  font-size: 11.5px;
}

.mock-subscription h3 {
  margin-bottom: 10px;
  font-size: 13px;
}

.mock-subscription label {
  display: block;
  margin-bottom: 4px;
  color: var(--color-muted);
}

.mock-input {
  height: 26px;
  margin-bottom: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-control);
  background: var(--color-page);
}

.mock-submit {
  min-height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-control);
  color: var(--color-accent-dark);
  font-weight: 650;
}

.floating-tag {
  position: absolute;
  z-index: 5;
  min-height: 34px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-inline: 14px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-pill);
  font-size: 12.5px;
  font-weight: 650;
  white-space: nowrap;
}

.floating-tag::before {
  width: 7px;
  height: 7px;
  flex: 0 0 7px;
  border-radius: 50%;
  background: var(--color-accent);
  content: "";
}

.floating-tag-dark {
  background: var(--color-text);
  color: var(--color-white);
}

.floating-tag-line {
  border: 1px solid var(--color-accent);
  background: var(--color-page);
  color: var(--color-accent-dark);
}

.floating-tag-line::before {
  background: var(--color-rose);
}

.tag-core {
  top: 142px;
  left: 30px;
}

.tag-protocol {
  top: 340px;
  left: 388px;
}

.tag-route {
  top: 552px;
  left: 236px;
}

@media (max-width: 1120px) {
  .desktop-nav a {
    padding-inline: 10px;
    font-size: 14px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-copy {
    max-width: 650px;
  }

  .hero-stage {
    height: 600px;
  }
}

@media (max-width: 900px) {
  :root {
    --header-height: 64px;
  }

  .desktop-nav {
    display: none;
  }

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

  .lang-button {
    min-height: 40px;
  }

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

  .mobile-nav {
    position: fixed;
    top: var(--header-height);
    right: 0;
    left: 0;
    z-index: 103;
    max-height: calc(100dvh - var(--header-height));
    padding: 12px var(--gutter) 22px;
    overflow-y: auto;
    overscroll-behavior: contain;
    border-top: 1px solid var(--color-border);
    background: var(--color-page);
    color: var(--color-text);
    box-shadow: var(--shadow-card);
  }

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

  .mobile-nav a {
    width: 100%;
    min-height: 48px;
    display: flex;
    align-items: center;
    padding-inline: 14px;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
    font-weight: 600;
    text-decoration: none;
  }

  .mobile-nav a[aria-current="page"] {
    color: var(--color-accent-dark);
  }

  .mobile-language-links {
    padding-top: 12px;
  }

  .mobile-language-links p {
    margin: 0;
    padding: 8px 14px;
    color: var(--color-muted);
    font-size: 13px;
    font-weight: 650;
  }

  .mobile-language-links a {
    border-bottom: 0;
  }

  .nav-veil {
    position: fixed;
    inset: var(--header-height) 0 0;
    z-index: 99;
    border: 0;
    background: var(--color-overlay);
  }

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

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

@media (max-width: 768px) {
  h1 {
    font-size: clamp(24px, 7.5vw, 30px);
  }

  h2 {
    font-size: clamp(25px, 7vw, 32px);
  }

  .hero-split {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .hero-stage {
    height: 520px;
  }

  .mock-window {
    top: 130px;
    left: 7%;
    width: 86%;
    height: 320px;
    grid-template-columns: 96px 1fr;
  }

  .mock-subscription {
    top: 36px;
    right: 4%;
    left: auto;
  }

  .mock-phone {
    top: 300px;
    left: 3%;
    transform: rotate(-2deg);
  }

  .tag-core {
    top: 94px;
    left: 3%;
  }

  .tag-protocol {
    top: 286px;
    right: 3%;
    left: auto;
  }

  .tag-route {
    top: auto;
    right: 5%;
    bottom: 18px;
    left: auto;
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
    --section-space: 72px;
  }

  .lang-full {
    display: none;
  }

  .lang-short {
    display: inline;
  }

  .button-row {
    align-items: stretch;
  }

  .hero-actions .button {
    flex: 1 1 145px;
  }

  .platform-list {
    flex-direction: row;
    align-items: center;
  }

  .platform-list .platform-label {
    flex-basis: 100%;
  }

  .hero-stage {
    height: 430px;
  }

  .mock-window {
    top: 116px;
    left: 5%;
    width: 90%;
    height: 252px;
    grid-template: 1fr 28px / 78px 1fr;
    font-size: 9px;
  }

  .mock-sidebar {
    padding: 9px 6px;
  }

  .mock-brand {
    padding-inline: 3px;
    font-size: 10px;
  }

  .mock-sidebar li {
    height: 24px;
    gap: 4px;
    padding-inline: 5px;
  }

  .mock-main {
    padding: 8px 8px 0;
  }

  .mock-toolbar {
    margin-bottom: 8px;
  }

  .mock-tool-button:last-child {
    display: none;
  }

  .mock-table-head,
  .mock-table-row {
    gap: 4px;
    padding-inline: 6px;
  }

  .mock-table-head {
    height: 25px;
    font-size: 7px;
  }

  .mock-table-row {
    height: 27px;
  }

  .mock-status {
    gap: 10px;
    padding-right: 8px;
    padding-left: 112px;
    font-size: 8px;
  }

  .mock-phone {
    top: 248px;
    left: 2%;
    width: 104px;
    height: 170px;
    padding: 7px 8px;
    transform: none;
    font-size: 8px;
  }

  .mock-phone li {
    height: 21px;
  }

  .mock-connect {
    bottom: 8px;
    width: 34px;
    height: 34px;
    font-size: 16px;
  }

  .mock-subscription {
    top: 20px;
    right: 3%;
    width: 168px;
    padding: 10px;
    font-size: 8px;
  }

  .mock-subscription h3 {
    font-size: 10px;
  }

  .mock-input {
    height: 18px;
    margin-bottom: 5px;
  }

  .mock-submit {
    min-height: 20px;
  }

  .floating-tag {
    min-height: 27px;
    padding-inline: 9px;
    font-size: 9px;
  }

  .tag-core {
    top: 72px;
  }

  .tag-protocol {
    top: 218px;
  }

  .tag-route {
    bottom: 10px;
  }

  .tilt,
  [class*="tilt"] {
    transform: none;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

  .table-scroll,
  .prose > .data-table {
    margin-right: 0;
    margin-left: 0;
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
  }

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