:root {
  --color-bg: #FFFFFF;
  --color-panel: #F8F9FA;
  --color-panel-strong: #F1F3F5;
  --color-border: #E3E7EA;
  --color-accent: #0E93D6;
  --color-accent-dark: #0A6FA3;
  --color-text: #14181B;
  --color-text-muted: #5C666E;
  --color-success: #1A9E6C;
  --color-warn: #C9860B;
  --color-error: #D6453A;
  --color-shadow-soft: rgba(20, 24, 27, 0.10);
  --color-shadow-card: rgba(20, 24, 27, 0.22);
  --color-overlay: rgba(20, 24, 27, 0.42);
  --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-xs: 4px;
  --radius-s: 6px;
  --radius-m: 10px;
  --radius-pill: 999px;
  --line-body: 1.7;
  --header-height: 64px;
  --wrap-wide: 1240px;
  --wrap: 1120px;
  --wrap-narrow: 820px;
  --gutter: 32px;
  --space-section: 96px;
  --shadow-card: 0 18px 36px -26px var(--color-shadow-card), 0 3px 8px -5px var(--color-shadow-soft);
  --shadow-tile: 0 8px 18px -14px var(--color-shadow-card);
  --transition-fast: 150ms ease;
  --transition-reveal: 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  background: var(--color-bg);
  color: var(--color-text);
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

html.nav-open {
  overflow: hidden;
}

body {
  min-width: 320px;
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: var(--line-body);
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

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

ul,
ol {
  padding: 0;
}

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

img {
  height: auto;
}

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

button {
  cursor: pointer;
}

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

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

a:focus-visible,
button:focus-visible,
summary:focus-visible,
[tabindex]:focus-visible {
  border-radius: var(--radius-s);
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

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

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

:not(pre) > code {
  padding: 0.12em 0.34em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-panel);
  font-size: 0.9em;
  overflow-wrap: anywhere;
  word-break: break-word;
}

pre {
  max-width: 100%;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  background: var(--color-panel);
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
}

pre code {
  display: block;
  min-width: max-content;
  color: var(--color-text);
  font-size: 13px;
  line-height: 1.75;
}

table {
  border-collapse: collapse;
  border-spacing: 0;
}

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

th {
  background: var(--color-panel);
  font-weight: 700;
}

hr {
  height: 1px;
  margin: 40px 0;
  border: 0;
  background: var(--color-border);
}

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

h1 {
  font-size: clamp(34px, 3.8vw, 48px);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

h2 {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 850;
  letter-spacing: -0.018em;
  line-height: 1.16;
}

h3 {
  font-size: clamp(22px, 2.5vw, 30px);
  font-weight: 800;
  line-height: 1.25;
}

h4 {
  font-size: 18px;
  font-weight: 750;
  line-height: 1.35;
}

p {
  color: var(--color-text-muted);
}

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

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

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

.mono-label,
.section-tag {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  line-height: 1.4;
  overflow-wrap: anywhere;
  padding: 5px 12px;
}

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

.wrap {
  max-width: var(--wrap);
}

.wrap-wide {
  max-width: var(--wrap-wide);
}

.wrap-narrow {
  max-width: var(--wrap-narrow);
}

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

.section--panel {
  border-block: 1px solid var(--color-border);
  background: var(--color-panel);
}

.section-head {
  max-width: 760px;
  margin-bottom: 40px;
}

.section-head h2 {
  margin-top: 18px;
}

.section-head p {
  margin-top: 14px;
  font-size: 17px;
}

.stack > * + * {
  margin-top: 18px;
}

.grid {
  display: grid;
  gap: 24px;
}

.grid > * {
  min-width: 0;
}

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

.grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.cluster {
  display: flex;
  min-width: 0;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.cluster > svg,
.cluster > img,
.cluster > .dot,
.cluster > .icon {
  flex-shrink: 0;
}

.panel,
.card {
  min-width: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  background: var(--color-bg);
}

.panel {
  padding: 28px;
}

.card {
  padding: 24px;
  box-shadow: var(--shadow-tile);
}

.panel--line {
  position: relative;
  overflow: clip;
}

.panel--line::before {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border), var(--color-accent));
  content: "";
}

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

.btn {
  display: inline-flex;
  min-height: 46px;
  max-width: 100%;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border: 1px solid transparent;
  border-radius: var(--radius-s);
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 650;
  line-height: 1.4;
  text-align: center;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

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

.btn--main {
  border-color: var(--color-accent);
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn--main:hover {
  border-color: var(--color-accent-dark);
  background: var(--color-accent-dark);
}

.btn--secondary {
  border-color: var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
}

.btn--secondary:hover {
  border-color: var(--color-text-muted);
}

.btn--quiet {
  border-color: transparent;
  background: var(--color-panel);
  color: var(--color-text);
}

.btn[aria-disabled="true"],
.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.btn__arrow {
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.badge-row,
.chip-row {
  display: flex;
  max-width: 100%;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.badge,
.chip {
  display: inline-flex;
  max-width: 100%;
  align-items: center;
  gap: 7px;
  padding: 4px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.5;
  overflow-wrap: anywhere;
}

.badge__dot {
  width: 7px;
  height: 7px;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
}

.badge--success .badge__dot {
  background: var(--color-success);
}

.badge--warn .badge__dot {
  background: var(--color-warn);
}

.badge--error .badge__dot {
  background: var(--color-error);
}

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

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

.site-head {
  position: relative;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.site-head__inner {
  position: relative;
  z-index: 3;
  display: flex;
  width: 100%;
  max-width: var(--wrap-wide);
  min-height: var(--header-height);
  margin-inline: auto;
  align-items: center;
  gap: 24px;
  padding-inline: var(--gutter);
  background: var(--color-bg);
}

.brand {
  display: inline-flex;
  flex-shrink: 0;
  align-items: center;
  gap: 10px;
}

.brand__mark {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.brand__name {
  color: var(--color-text);
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.nav-line {
  display: flex;
  margin-left: auto;
  align-items: center;
  font-size: 14px;
}

.nav-line__item {
  padding: 7px 2px;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.nav-line__item[aria-current="page"] {
  font-weight: 650;
}

.nav-line__dot {
  padding-inline: 9px;
  color: var(--color-border);
  user-select: none;
}

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

.lang-trigger {
  min-height: 34px;
  padding: 5px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  background: var(--color-bg);
  color: var(--color-text-muted);
  font-size: 13px;
  white-space: nowrap;
}

.lang-trigger:hover {
  border-color: var(--color-text-muted);
  color: var(--color-text);
}

.lang-trigger__short {
  display: none;
}

.lang-menu {
  position: absolute;
  z-index: 5;
  top: calc(100% + 10px);
  right: 0;
  width: 176px;
  padding: 6px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
}

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

.lang-menu a {
  display: flex;
  min-height: 42px;
  align-items: center;
  padding: 8px 10px;
  border-radius: var(--radius-s);
  color: var(--color-text-muted);
  font-size: 14px;
}

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

.nav-toggle {
  display: none;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 9px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  background: var(--color-bg);
}

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block;
  width: 20px;
  height: 1px;
  background: var(--color-text);
  content: "";
  transition: transform var(--transition-fast);
}

.nav-toggle__bars {
  position: relative;
}

.nav-toggle__bars::before {
  position: absolute;
  top: -6px;
}

.nav-toggle__bars::after {
  position: absolute;
  top: 6px;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bars {
  background: transparent;
}

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

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

.mobile-drawer {
  position: absolute;
  z-index: 4;
  top: var(--header-height);
  right: 0;
  left: 0;
  max-height: calc(100dvh - var(--header-height));
  padding: 12px var(--gutter) 20px;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  overflow-y: auto;
  overscroll-behavior: contain;
}

.mobile-drawer[hidden] {
  display: none;
}

.mobile-drawer__links,
.mobile-drawer__langs {
  list-style: none;
}

.mobile-drawer__links a,
.mobile-drawer__langs a {
  display: flex;
  width: 100%;
  min-height: 46px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 4px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
}

.mobile-drawer__links a[aria-current="page"],
.mobile-drawer__langs a[aria-current="true"] {
  color: var(--color-text);
  font-weight: 650;
}

.mobile-drawer__label {
  margin-top: 18px;
  margin-bottom: 4px;
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.nav-veil {
  position: fixed;
  z-index: 1;
  inset: var(--header-height) 0 0;
  border: 0;
  background: var(--color-overlay);
}

.nav-veil[hidden] {
  display: none;
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-panel);
}

.site-footer__main {
  display: grid;
  grid-template-columns: 1.35fr 1fr 1.2fr 0.9fr;
  gap: 44px;
  padding-top: 56px;
  padding-bottom: 44px;
}

.footer-brand p {
  max-width: 320px;
  margin-top: 16px;
  font-size: 14px;
}

.footer-title {
  margin-bottom: 14px;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
}

.footer-links {
  list-style: none;
}

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

.footer-links a {
  color: var(--color-text-muted);
  font-size: 14px;
}

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

.site-footer__bottom {
  display: flex;
  min-height: 64px;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 13px;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
}

.hero {
  position: relative;
  display: flex;
  max-width: var(--wrap);
  margin-inline: auto;
  padding: 34px var(--gutter) 0;
  flex-direction: column;
  align-items: center;
  text-align: center;
  overflow-x: clip;
}

.hero__eyebrow {
  padding: 5px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: var(--color-panel);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
}

.hero__title {
  margin-top: 22px;
  font-size: clamp(34px, 3.8vw, 48px);
  line-height: 1.1;
}

.hero__title .t-sep {
  color: var(--color-border);
  font-weight: 800;
}

.hero__sub {
  max-width: 640px;
  margin-top: 16px;
  color: var(--color-text-muted);
  font-size: 16px;
}

.hero .chip-row {
  margin-top: 20px;
}

.hero .chip em {
  color: var(--color-text);
  font-style: normal;
}

.rig {
  display: flex;
  width: 640px;
  max-width: 100%;
  margin-top: 30px;
  flex-direction: column;
  align-items: center;
}

.conf-card {
  position: relative;
  z-index: 1;
  width: 340px;
  max-width: calc(100% - 16px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  background: var(--color-bg);
  box-shadow: var(--shadow-card);
  text-align: left;
}

.conf-card::before {
  position: absolute;
  z-index: -1;
  inset: 8px -7px -7px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-m);
  background: var(--color-panel);
  content: "";
}

.conf-card__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 16px;
  border-bottom: 1px solid var(--color-border);
  border-radius: var(--radius-m) var(--radius-m) 0 0;
  background: var(--color-panel);
}

.conf-card__file,
.conf-card__scope {
  font-family: var(--font-mono);
}

.conf-card__file {
  color: var(--color-text);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.06em;
}

.conf-card__scope {
  color: var(--color-text-muted);
  font-size: 11px;
}

.conf-card__body {
  padding: 14px 18px 15px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.75;
  overflow-x: auto;
  white-space: pre;
}

.conf-card__body .ck,
.conf-card__body .cp {
  color: var(--color-text-muted);
}

.conf-card__body .cv {
  color: var(--color-text);
}

.conf-card__body .cva {
  color: var(--color-accent);
  font-weight: 650;
}

.rig__wires {
  width: 640px;
  max-width: 100%;
  height: auto;
  margin-top: -1px;
}

.rig__wires .wire-a {
  stop-color: var(--color-border);
}

.rig__wires .wire-b {
  stop-color: var(--color-accent);
}

.rig__wires .wire-end {
  fill: var(--color-accent);
}

.plat-row {
  display: flex;
  width: 640px;
  max-width: 100%;
  margin-top: 8px;
  justify-content: space-between;
  padding-inline: 48px;
}

.plat {
  display: flex;
  width: 44px;
  flex-direction: column;
  align-items: center;
  gap: 7px;
}

.plat__tile {
  display: flex;
  width: 44px;
  height: 44px;
  flex-shrink: 0;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-s);
  background: var(--color-bg);
  box-shadow: var(--shadow-tile);
  color: var(--color-accent);
}

.plat--on .plat__tile {
  border-color: var(--color-accent);
}

.plat__name {
  color: var(--color-text);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.cta-row {
  display: flex;
  margin-top: 26px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.prose {
  min-width: 0;
  color: var(--color-text-muted);
}

.prose > * + * {
  margin-top: 20px;
}

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

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

.prose ul,
.prose ol {
  padding-left: 1.35em;
}

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

.prose a {
  color: var(--color-accent-dark);
  text-decoration: underline;
  text-decoration-color: var(--color-border);
  text-underline-offset: 3px;
}

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

@media (max-width: 1040px) {
  .nav-line__dot {
    padding-inline: 5px;
  }

  .site-head__inner {
    gap: 14px;
  }

  .nav-line {
    font-size: 13px;
  }

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

@media (max-width: 860px) {
  :root {
    --gutter: 24px;
    --space-section: 76px;
  }

  .nav-line {
    display: none;
  }

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

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

  .grid--3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  h1,
  .hero__title {
    font-size: clamp(24px, 7vw, 30px);
  }
}

@media (max-width: 640px) {
  :root {
    --gutter: 16px;
    --space-section: 60px;
  }

  body {
    font-size: 15px;
  }

  h1,
  .hero__title {
    font-size: clamp(24px, 9vw, 30px);
    letter-spacing: -0.015em;
    line-height: 1.12;
  }

  h2 {
    font-size: clamp(27px, 8vw, 36px);
  }

  .grid--2,
  .grid--3,
  .site-footer__main {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-footer__main {
    gap: 30px;
    padding-top: 42px;
  }

  .site-footer__bottom {
    align-items: flex-start;
    flex-direction: column;
    justify-content: center;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .lang-trigger__full {
    display: none;
  }

  .lang-trigger__short {
    display: inline;
  }

  .lang-trigger {
    min-width: 44px;
    min-height: 44px;
    padding-inline: 8px;
  }

  .brand__name {
    font-size: 16px;
  }

  .hero {
    padding-top: 28px;
  }

  .hero__eyebrow {
    font-size: 10px;
    letter-spacing: 0.08em;
    padding-inline: 10px;
  }

  .hero__sub {
    font-size: 15px;
  }

  .hero .chip-row,
  .badge-row,
  .chip-row {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 7px;
  }

  .rig {
    margin-top: 24px;
  }

  .rig__wires {
    min-height: 72px;
  }

  .plat-row {
    padding-inline: 7px;
  }

  .plat {
    width: 54px;
  }

  .plat__tile {
    width: 40px;
    height: 40px;
  }

  .plat__name {
    font-size: 10px;
  }

  .cta-row {
    width: 100%;
    margin-top: 22px;
  }

  .cta-row .btn {
    flex: 1 1 150px;
    padding-inline: 15px;
  }

  .panel,
  .card {
    padding: 20px;
  }

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

  .section,
  .hero,
  .panel--line {
    overflow-x: clip;
  }

  .prose h2 {
    margin-top: 48px;
  }
}

@media (max-width: 380px) {
  .brand__name {
    display: none;
  }

  .plat-row {
    padding-inline: 0;
  }

  .plat {
    width: 50px;
  }
}

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

  *,
  *::before,
  *::after {
    animation: none !important;
    scroll-behavior: auto !important;
    transition: none !important;
  }

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