:root {
  color-scheme: dark;
  --bg: #080b0f;
  --surface: #101720;
  --surface-2: #151d27;
  --line: rgba(217, 232, 226, 0.14);
  --line-strong: rgba(217, 232, 226, 0.28);
  --text: #edf7f2;
  --muted: #9fb1ad;
  --soft: #c9d9d3;
  --teal: #49f0c7;
  --blue: #6bb8ff;
  --coral: #ff846d;
  --amber: #ffc857;
  --danger: #ff6f91;
  --grid-x: rgba(73, 240, 199, 0.05);
  --grid-y: rgba(255, 200, 87, 0.035);
  --body-glow: radial-gradient(circle at 8% 0%, rgba(73, 240, 199, 0.16), transparent 32%),
    radial-gradient(circle at 92% 16%, rgba(255, 132, 109, 0.12), transparent 30%),
    linear-gradient(135deg, rgba(8, 11, 15, 0.55), rgba(8, 11, 15, 0.96) 72%);
  --scan-a: rgba(255, 255, 255, 0.025);
  --scan-b: rgba(255, 255, 255, 0.02);
  --scan-c: rgba(255, 255, 255, 0.018);
  --sidebar-bg: rgba(8, 12, 17, 0.86);
  --field-bg: rgba(255, 255, 255, 0.06);
  --panel-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.02)),
    rgba(14, 20, 27, 0.74);
  --panel-solid: rgba(13, 18, 25, 0.76);
  --panel-soft: rgba(13, 18, 25, 0.62);
  --pre-bg: #05080d;
  --pre-text: #e3fdf7;
  --inline-code: #d7fff6;
  --hero-bg: #080b0f;
  --hero-overlay: linear-gradient(90deg, rgba(8, 11, 15, 0.94) 0%, rgba(8, 11, 15, 0.66) 46%, rgba(8, 11, 15, 0.32) 100%),
    linear-gradient(0deg, rgba(8, 11, 15, 0.98) 0%, transparent 45%);
  --hero-filter: saturate(1.08) contrast(1.08);
  --copy-bg: rgba(7, 12, 18, 0.88);
  --copy-text: #f4fffb;
  --copy-border: rgba(73, 240, 199, 0.52);
  --copy-hover-border: rgba(73, 240, 199, 0.9);
  --theme-chip-bg: rgba(255, 255, 255, 0.04);
  --sidebar: 304px;
  --radius: 8px;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.36);
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f8f7;
  --surface: #ffffff;
  --surface-2: #edf4f3;
  --line: rgba(17, 33, 38, 0.13);
  --line-strong: rgba(17, 33, 38, 0.24);
  --text: #102027;
  --muted: #607477;
  --soft: #33494d;
  --teal: #007c69;
  --blue: #216fbc;
  --coral: #c94f3c;
  --amber: #9a6400;
  --danger: #c73a62;
  --grid-x: rgba(0, 124, 105, 0.08);
  --grid-y: rgba(154, 100, 0, 0.055);
  --body-glow: radial-gradient(circle at 8% 0%, rgba(0, 124, 105, 0.12), transparent 32%),
    radial-gradient(circle at 92% 16%, rgba(201, 79, 60, 0.1), transparent 30%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(238, 244, 244, 0.98) 72%);
  --scan-a: rgba(16, 32, 39, 0.025);
  --scan-b: rgba(16, 32, 39, 0.018);
  --scan-c: rgba(16, 32, 39, 0.012);
  --sidebar-bg: rgba(255, 255, 255, 0.86);
  --field-bg: rgba(255, 255, 255, 0.82);
  --panel-bg: linear-gradient(135deg, rgba(255, 255, 255, 0.88), rgba(246, 251, 250, 0.72)),
    rgba(255, 255, 255, 0.82);
  --panel-solid: rgba(255, 255, 255, 0.78);
  --panel-soft: rgba(255, 255, 255, 0.68);
  --pre-bg: #071018;
  --pre-text: #e7fff8;
  --inline-code: #006f60;
  --hero-bg: #f5f8f7;
  --hero-overlay: linear-gradient(90deg, rgba(246, 251, 250, 0.92) 0%, rgba(246, 251, 250, 0.7) 43%, rgba(246, 251, 250, 0.28) 100%),
    linear-gradient(0deg, rgba(245, 248, 247, 0.98) 0%, transparent 45%);
  --hero-filter: saturate(0.88) contrast(1.02) brightness(1.14);
  --copy-bg: #102027;
  --copy-text: #ffffff;
  --copy-border: rgba(0, 124, 105, 0.82);
  --copy-hover-border: #007c69;
  --theme-chip-bg: rgba(16, 32, 39, 0.04);
  --shadow: 0 18px 48px rgba(22, 48, 52, 0.14);
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    linear-gradient(90deg, var(--grid-x) 1px, transparent 1px),
    linear-gradient(180deg, var(--grid-y) 1px, transparent 1px),
    var(--bg);
  background-size: 72px 72px, 72px 72px, auto;
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  line-height: 1.65;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  content: "";
  background: var(--body-glow);
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(var(--scan-a) 50%, transparent 50%),
    linear-gradient(90deg, var(--scan-b), transparent 28%, var(--scan-c));
  background-size: 100% 4px, 220px 100%;
  opacity: 0.45;
}

a {
  color: inherit;
}

code {
  color: var(--inline-code);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  font-size: 0.94em;
  overflow-wrap: anywhere;
}

pre {
  position: relative;
  max-width: 100%;
  margin: 20px 0;
  overflow-x: auto;
  overflow-y: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--pre-bg);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

pre code {
  display: block;
  min-width: 100%;
  padding: 24px;
  color: var(--pre-text);
  line-height: 1.7;
  overflow-wrap: normal;
  white-space: pre;
}

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

#meshCanvas {
  position: fixed;
  inset: 0;
  z-index: -1;
  width: 100vw;
  height: 100vh;
  opacity: 0.58;
}

.scroll-meter {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 50;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, var(--teal), var(--amber), var(--coral));
  box-shadow: 0 0 18px rgba(73, 240, 199, 0.55);
}

.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 40;
  width: var(--sidebar);
  padding: 24px 18px;
  overflow-y: auto;
  border-right: 1px solid var(--line);
  background: var(--sidebar-bg);
  backdrop-filter: blur(18px);
}

.brand {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  display: grid;
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(73, 240, 199, 0.56);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(73, 240, 199, 0.25), rgba(255, 132, 109, 0.22)),
    rgba(255, 255, 255, 0.04);
  color: var(--text);
  font-weight: 800;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.82rem;
}

.search-box {
  display: block;
  margin: 20px 0 16px;
  color: var(--muted);
  font-size: 0.82rem;
}

.search-box input {
  width: 100%;
  margin-top: 8px;
  padding: 12px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
  background: var(--field-bg);
  color: var(--text);
  font: inherit;
}

.search-box input:focus {
  border-color: rgba(73, 240, 199, 0.7);
  box-shadow: 0 0 0 3px rgba(73, 240, 199, 0.12);
}

.theme-switcher {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.82rem;
}

.theme-buttons {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--theme-chip-bg);
}

.theme-buttons button {
  min-width: 0;
  min-height: 32px;
  padding: 6px 8px;
  border: 1px solid transparent;
  border-radius: calc(var(--radius) - 2px);
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
}

.theme-buttons button:hover,
.theme-buttons button:focus-visible,
.theme-buttons button[aria-pressed="true"] {
  border-color: rgba(73, 240, 199, 0.32);
  outline: none;
  background: rgba(73, 240, 199, 0.11);
  color: var(--text);
}

.nav-list {
  display: grid;
  gap: 4px;
}

.nav-list a,
.sidebar-actions a {
  min-height: 36px;
  padding: 8px 10px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  color: var(--soft);
  font-size: 0.92rem;
  text-decoration: none;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.nav-list a {
  display: flex;
  align-items: center;
}

.nav-list a:hover,
.nav-list a.active {
  border-color: rgba(73, 240, 199, 0.3);
  background: rgba(73, 240, 199, 0.08);
  color: var(--text);
  transform: translateX(2px);
}

.sidebar-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  padding-top: 18px;
  margin-top: 18px;
  border-top: 1px solid var(--line);
}

.sidebar-actions a {
  display: grid;
  place-items: center;
  min-height: 38px;
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
  font-size: 0.84rem;
}

.nav-toggle {
  position: fixed;
  top: 14px;
  left: 14px;
  z-index: 60;
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--sidebar-bg);
  color: var(--text);
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: currentColor;
}

.page {
  width: min(1180px, calc(100% - var(--sidebar) - 48px));
  margin-left: calc(var(--sidebar) + 24px);
  padding: 0 0 56px;
}

.hero {
  position: relative;
  display: grid;
  min-height: 650px;
  align-items: end;
  padding: 88px 44px 24px;
  overflow: hidden;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  border-left: 1px solid var(--line);
  border-radius: 0 0 var(--radius) var(--radius);
  background: var(--hero-bg);
  box-shadow: var(--shadow);
}

.hero::after {
  position: absolute;
  inset: 0;
  content: "";
  background: var(--hero-overlay);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: var(--hero-filter);
}

.hero-copy,
.signal-strip {
  position: relative;
  z-index: 1;
}

.hero-copy {
  max-width: 760px;
}

.eyebrow,
.section-heading p {
  margin: 0 0 10px;
  color: var(--teal);
  font-weight: 700;
  font-size: 0.92rem;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: 4.25rem;
  line-height: 1.04;
}

.lead {
  max-width: 760px;
  margin: 22px 0 0;
  color: var(--soft);
  font-size: 1.1rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 28px;
}

.hero-actions a {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 9px 14px;
  border: 1px solid rgba(73, 240, 199, 0.35);
  border-radius: var(--radius);
  background: rgba(73, 240, 199, 0.12);
  color: var(--text);
  font-weight: 700;
  text-decoration: none;
}

.hero-actions a:nth-child(2) {
  border-color: rgba(255, 200, 87, 0.38);
  background: rgba(255, 200, 87, 0.13);
}

.hero-actions a:nth-child(3) {
  border-color: rgba(255, 132, 109, 0.38);
  background: rgba(255, 132, 109, 0.13);
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 54px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--line);
}

.signal-strip div {
  min-width: 0;
  padding: 16px;
  background: var(--panel-solid);
}

.signal-strip span,
.endpoint-card span,
.model-matrix span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.signal-strip strong {
  display: block;
  overflow-wrap: anywhere;
  color: var(--text);
}

.doc-section {
  padding: 76px 0;
  border-bottom: 1px solid var(--line);
}

.doc-section[hidden] {
  display: none;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading h2 {
  margin: 0;
  font-size: 2.2rem;
  line-height: 1.18;
}

.doc-section > p,
.section-note {
  max-width: 820px;
  color: var(--soft);
}

.endpoint-grid,
.mini-grid,
.code-grid,
.model-matrix {
  display: grid;
  gap: 14px;
}

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

.endpoint-card,
.mini-grid article,
.code-grid article,
.model-matrix article {
  position: relative;
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-bg);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.2);
}

.endpoint-card.hot {
  border-color: rgba(73, 240, 199, 0.44);
}

.endpoint-card code {
  display: block;
  margin: 8px 0 12px;
  overflow-wrap: anywhere;
  color: var(--teal);
  font-size: 1.08rem;
}

.endpoint-card p,
.mini-grid p,
.model-matrix p,
.callout p,
.faq p,
.clean-list {
  color: var(--soft);
}

.callout {
  margin: 20px 0 0;
  padding: 18px;
  border: 1px solid rgba(73, 240, 199, 0.28);
  border-radius: var(--radius);
  background: rgba(73, 240, 199, 0.08);
}

.callout.danger {
  border-color: rgba(255, 111, 145, 0.34);
  background: rgba(255, 111, 145, 0.08);
}

.callout.warning {
  border-color: rgba(255, 200, 87, 0.46);
  background: rgba(255, 200, 87, 0.11);
}

.callout.warning pre {
  margin-bottom: 12px;
}

.callout a {
  color: #b6fff0;
}

.step-track {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.step-track article {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-solid);
}

.step-track span {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: var(--radius);
  background: rgba(255, 200, 87, 0.16);
  color: var(--amber);
  font-weight: 800;
}

.step-track h3,
.split h3,
.code-grid h3 {
  margin: 16px 0 8px;
}

.step-track a {
  color: var(--teal);
  overflow-wrap: anywhere;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 20px;
}

.clean-list {
  padding-left: 1.25rem;
}

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

.mini-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.mini-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.mini-grid article strong,
.mini-grid article span {
  display: block;
}

.ok {
  color: var(--teal);
}

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

.terminal-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--pre-bg);
}

.terminal-card pre {
  margin: 0;
  border: 0;
  border-radius: 0;
}

.terminal-head {
  display: flex;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: var(--theme-chip-bg);
}

.terminal-head span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-head span:nth-child(1) {
  background: var(--coral);
}

.terminal-head span:nth-child(2) {
  background: var(--amber);
}

.terminal-head span:nth-child(3) {
  background: var(--teal);
}

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

.code-grid pre {
  margin: 12px 0 0;
}

.param-table,
.status-table {
  overflow: hidden;
  margin: 18px 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.param-table div,
.status-table div {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 16px;
  min-width: 0;
  padding: 13px 16px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-soft);
}

.param-table div:last-child,
.status-table div:last-child {
  border-bottom: 0;
}

.param-table.compact div {
  grid-template-columns: 190px minmax(0, 1fr);
}

.status-table div {
  grid-template-columns: 200px minmax(0, 1fr) minmax(0, 1fr);
}

.status-table .head {
  background: rgba(73, 240, 199, 0.08);
  color: var(--teal);
}

.model-matrix {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.model-matrix strong {
  display: block;
  margin: 8px 0;
  color: var(--amber);
  font-size: 1.1rem;
  overflow-wrap: anywhere;
}

.download-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 22px 0;
}

.download-strip article {
  min-width: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-bg);
}

.download-strip span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
}

.download-strip strong {
  display: block;
  margin: 6px 0 8px;
  color: var(--text);
  font-size: 1.05rem;
}

.download-strip p {
  min-height: 72px;
  margin: 0 0 14px;
  color: var(--soft);
}

.download-strip a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 8px 12px;
  border: 1px solid rgba(73, 240, 199, 0.38);
  border-radius: var(--radius);
  background: rgba(73, 240, 199, 0.11);
  color: var(--text);
  font-weight: 800;
  text-decoration: none;
}

.download-strip a:hover,
.download-strip a:focus-visible {
  border-color: var(--teal);
  outline: none;
}

.faq {
  border-bottom: 0;
}

.faq details {
  margin-bottom: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel-solid);
}

.faq summary {
  min-height: 48px;
  padding: 12px 16px;
  cursor: pointer;
  color: var(--text);
  font-weight: 800;
}

.faq p {
  margin: 0;
  padding: 0 16px 16px;
}

.copy-btn {
  position: absolute;
  top: 10px;
  right: 10px;
  min-width: 64px;
  min-height: 32px;
  border: 1px solid var(--copy-border);
  border-radius: var(--radius);
  background: var(--copy-bg);
  color: var(--copy-text);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
  font-weight: 800;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.22);
}

.copy-btn:hover,
.copy-btn:focus-visible {
  border-color: var(--copy-hover-border);
  outline: none;
}

.copy-btn.done {
  border-color: var(--teal);
  color: var(--teal);
}

.footer {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0 0;
  color: var(--muted);
}

.footer a {
  color: var(--teal);
}

@media (max-width: 1180px) {
  .page {
    width: min(100% - var(--sidebar) - 32px, 980px);
    margin-left: calc(var(--sidebar) + 16px);
  }

  .hero h1 {
    font-size: 3.3rem;
  }

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

@media (max-width: 900px) {
  .nav-toggle {
    display: block;
  }

  .sidebar {
    width: min(86vw, 320px);
    transform: translateX(-105%);
    transition: transform 180ms ease;
  }

  .sidebar.open {
    transform: translateX(0);
  }

  .page {
    width: min(100% - 28px, 760px);
    margin: 0 auto;
  }

  .hero {
    min-height: 610px;
    padding: 84px 22px 18px;
  }

  .hero h1 {
    font-size: 2.55rem;
  }

  .lead {
    font-size: 1rem;
  }

  .signal-strip,
  .endpoint-grid,
  .step-track,
  .split,
  .code-grid,
  .mini-grid,
  .mini-grid.four,
  .model-matrix,
  .download-strip {
    grid-template-columns: 1fr;
  }

  .download-strip p {
    min-height: 0;
  }

  .doc-section {
    padding: 58px 0;
  }

  .section-heading h2 {
    font-size: 1.8rem;
  }

  .param-table div,
  .param-table.compact div,
  .status-table div {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

@media (max-width: 560px) {
  .page {
    width: min(100% - 20px, 520px);
  }

  .hero {
    min-height: 600px;
    padding-right: 16px;
    padding-left: 16px;
  }

  .hero h1 {
    font-size: 2.05rem;
  }

  .hero-actions a {
    width: 100%;
    justify-content: center;
  }

  pre code {
    padding: 54px 16px 18px;
  }

  .terminal-card pre code {
    padding-top: 18px;
  }

  .footer {
    display: block;
  }
}