:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --surface-soft: #eef3f8;
  --text: #111827;
  --muted: #647084;
  --line: #dbe2ea;
  --accent: #145df5;
  --accent-2: #00a676;
  --ink: #07111f;
  --warning: #b86b00;
  --danger: #b42318;
  --shadow: 0 24px 70px rgba(18, 33, 61, 0.12);
  --display-font: "Arial Rounded MT Bold", "Microsoft YaHei UI", "YouYuan", "幼圆", ui-rounded, ui-sans-serif, system-ui, sans-serif;
}

body.dark {
  color-scheme: dark;
  --bg: #0b0f14;
  --surface: #111821;
  --surface-soft: #172231;
  --text: #edf2f7;
  --muted: #9aa8ba;
  --line: #263445;
  --accent: #6aa6ff;
  --accent-2: #28d39a;
  --ink: #05070a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at top left, rgba(20, 93, 245, 0.12), transparent 32rem),
    linear-gradient(180deg, var(--bg), var(--surface-soft));
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

.hidden-field {
  position: absolute;
  left: -9999px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 22px;
  min-height: 72px;
  padding: 14px clamp(16px, 4vw, 52px);
  border-bottom: 1px solid color-mix(in srgb, var(--line), transparent 20%);
  background: color-mix(in srgb, var(--surface), transparent 10%);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-family: var(--display-font);
  font-weight: 760;
  white-space: nowrap;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--text);
  color: var(--surface);
  font-weight: 800;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  overflow-x: auto;
  scrollbar-width: none;
}

.nav-link,
.side-link {
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 8px;
  min-height: 38px;
  padding: 8px 12px;
  white-space: nowrap;
}

.nav-link.active,
.nav-link:hover,
.side-link.active,
.side-link:hover {
  background: var(--surface-soft);
  color: var(--text);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.primary-btn,
.secondary-btn,
.ghost-btn,
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 9px 15px;
  font-weight: 650;
  white-space: nowrap;
}

.primary-btn {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 26px rgba(20, 93, 245, 0.24);
}

.secondary-btn,
.ghost-btn,
.icon-btn {
  background: var(--surface);
  color: var(--text);
  border-color: var(--line);
}

.icon-btn {
  width: 40px;
  padding: 0;
}

.large {
  min-height: 48px;
  padding-inline: 20px;
}

.view {
  display: none;
  padding: clamp(24px, 5vw, 64px) clamp(16px, 4vw, 52px);
}

.view.active {
  display: block;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(360px, 0.78fr);
  gap: clamp(28px, 5vw, 76px);
  align-items: center;
  max-width: 1240px;
  min-height: calc(100vh - 134px);
  margin: 0 auto;
  padding-bottom: 24px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 760;
  letter-spacing: 0;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  position: relative;
  max-width: 760px;
  margin: 0;
  font-family: var(--display-font);
  font-size: clamp(42px, 7.3vw, 82px);
  line-height: 1.02;
  letter-spacing: 0;
  font-weight: 850;
  text-wrap: balance;
}

.glow-title {
  isolation: isolate;
}

.glow-title::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: -0.08em -0.18em -0.1em;
  border-radius: 18px;
  background:
    radial-gradient(circle at 18% 46%, rgba(44, 196, 255, 0.42), transparent 34%),
    radial-gradient(circle at 68% 52%, rgba(39, 211, 154, 0.36), transparent 36%),
    linear-gradient(90deg, rgba(20, 93, 245, 0.22), rgba(255, 255, 255, 0));
  filter: blur(18px);
  opacity: 0.9;
  transform: translateY(0.08em);
}

.glow-title::after {
  content: attr(data-shine);
  position: absolute;
  inset: 0;
  z-index: -1;
  color: transparent;
  text-shadow:
    0 0 18px rgba(20, 93, 245, 0.28),
    0 0 34px rgba(39, 211, 154, 0.22);
}

h2 {
  margin: 0;
  font-family: var(--display-font);
  font-size: clamp(28px, 4vw, 48px);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0;
}

.hero-text {
  max-width: 680px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
  max-width: 640px;
}

.hero-metrics div,
.stat,
.panel,
.feature-card,
.price-card,
.login-box {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--surface), transparent 2%);
  box-shadow: var(--shadow);
}

.hero-metrics div {
  border-radius: 8px;
  padding: 16px;
}

.hero-metrics strong,
.stat strong {
  display: block;
  font-size: 24px;
}

.hero-metrics span,
.stat span,
.stat em {
  color: var(--muted);
  font-size: 13px;
  font-style: normal;
}

.terminal-panel {
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--line), transparent 15%);
  border-radius: 8px;
  background: #07111f;
  color: #d7e1ef;
  box-shadow: 0 32px 100px rgba(3, 12, 27, 0.35);
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.panel-header span {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: #ef6a5b;
}

.panel-header span:nth-child(2) {
  background: #f5bd4f;
}

.panel-header span:nth-child(3) {
  background: #62c554;
}

.panel-header b {
  margin-left: auto;
  color: #9fb0c7;
  font-size: 13px;
}

pre {
  margin: 0;
  padding: 22px;
  overflow-x: auto;
  font-size: 13px;
  line-height: 1.7;
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(255, 255, 255, 0.1);
}

.route-grid div {
  padding: 16px;
  background: #0b1727;
}

.route-grid span {
  display: block;
  color: #91a2ba;
  font-size: 12px;
}

.route-grid b {
  color: #28d39a;
}

.band {
  max-width: 1240px;
  margin: 12px auto 0;
  padding: 54px 0 10px;
}

.section-title,
.page-head {
  max-width: 760px;
  margin-bottom: 28px;
}

.feature-grid,
.pricing-grid,
.stat-grid,
.dashboard-grid {
  display: grid;
  gap: 16px;
}

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

.feature-card,
.price-card,
.panel,
.stat {
  border-radius: 8px;
}

.feature-card,
.price-card {
  padding: 22px;
}

.feature-icon {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--accent);
  font-weight: 800;
}

.feature-card p,
.price-card p,
.doc-content p {
  color: var(--muted);
}

.app-shell {
  grid-template-columns: 248px minmax(0, 1fr);
  gap: 24px;
  max-width: 1440px;
  margin: 0 auto;
}

.app-shell.active {
  display: grid;
}

.sidebar {
  position: sticky;
  top: 96px;
  align-self: start;
  display: grid;
  gap: 6px;
  min-height: 440px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.sidebar-title {
  margin-bottom: 10px;
  font-weight: 760;
}

.side-link {
  text-align: left;
}

.workspace {
  min-width: 0;
}

.workspace-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.stat-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 16px;
}

.stat {
  padding: 18px;
}

.stat em {
  display: inline-block;
  margin-top: 8px;
  color: var(--accent-2);
}

.dashboard-grid {
  grid-template-columns: 1fr 0.72fr;
  margin-bottom: 16px;
}

.panel {
  min-width: 0;
  padding: 20px;
}

.panel.wide {
  min-height: 280px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

select,
input {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 8px 10px;
}

.status,
.pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 720;
}

.good,
.ok {
  background: color-mix(in srgb, var(--accent-2), transparent 84%);
  color: var(--accent-2);
}

.warn {
  background: color-mix(in srgb, #f5a524, transparent 84%);
  color: var(--warning);
}

.alert {
  background: color-mix(in srgb, #f04438, transparent 84%);
  color: var(--danger);
}

.chart-bars {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  align-items: end;
  gap: 12px;
  height: 210px;
  padding-top: 10px;
}

.chart-bars span {
  min-height: 28px;
  border-radius: 8px 8px 4px 4px;
  background: linear-gradient(180deg, var(--accent), color-mix(in srgb, var(--accent-2), var(--accent) 30%));
  transition: height 420ms ease;
}

.health-list,
.channel-list,
.event-list {
  display: grid;
  gap: 12px;
}

.health-list div,
.channel-list div,
.event-list div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 13px;
  border-radius: 8px;
  background: var(--surface-soft);
}

.channel-list div,
.event-list div {
  align-items: flex-start;
  flex-direction: column;
}

.channel-list span,
.event-list span {
  color: var(--muted);
  font-size: 13px;
}

.event-list button {
  align-self: flex-end;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 7px 12px;
}

.line-chart {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  align-items: end;
  gap: 14px;
  min-height: 210px;
}

.line-chart span {
  display: block;
  height: 80%;
  border-radius: 8px;
  background: var(--surface-soft);
  position: relative;
}

.line-chart span::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 52%;
  border-radius: 8px;
  background: var(--accent-2);
}

.line-chart span:nth-child(2)::after { height: 62%; }
.line-chart span:nth-child(3)::after { height: 48%; }
.line-chart span:nth-child(4)::after { height: 72%; }
.line-chart span:nth-child(5)::after { height: 82%; }
.line-chart span:nth-child(6)::after { height: 70%; }

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 720px;
  border-collapse: collapse;
}

th,
td {
  padding: 13px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  color: var(--muted);
  font-size: 12px;
  font-weight: 720;
}

.page-head {
  max-width: 1000px;
  margin: 0 auto 28px;
  text-align: center;
}

.pricing-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  max-width: 1280px;
  margin: 0 auto;
}

.pricing-note {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: 960px;
  margin: 0 auto 18px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface), transparent 4%);
  color: var(--muted);
  box-shadow: var(--shadow);
}

.pricing-note b {
  color: var(--text);
  white-space: nowrap;
}

.price-card {
  display: grid;
  gap: 16px;
  align-content: start;
  grid-template-rows: auto auto auto 1fr auto;
  position: relative;
}

.price-card .primary-btn,
.price-card .secondary-btn {
  align-self: end;
  width: 100%;
}

.price-card.featured {
  border-color: color-mix(in srgb, var(--accent), var(--line) 30%);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent), transparent 94%), transparent 42%),
    color-mix(in srgb, var(--surface), transparent 2%);
}

.price-badge {
  justify-self: start;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 5px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent), transparent 86%);
  color: var(--accent);
  font-size: 12px;
  font-weight: 760;
}

.price-card strong {
  font-size: 38px;
}

.price-card strong span {
  color: var(--muted);
  font-size: 15px;
}

.price-card ul {
  display: grid;
  gap: 10px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.model-price-panel,
.model-catalog-panel {
  max-width: 1280px;
  margin: 18px auto 0;
}

.purchase-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.7fr);
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.step-list {
  display: grid;
  gap: 12px;
}

.step-list div {
  display: grid;
  grid-template-columns: 36px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px;
  border-radius: 8px;
  background: var(--surface-soft);
}

.step-list b {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
}

.step-list span {
  color: var(--muted);
}

.purchase-form {
  display: grid;
  gap: 14px;
}

.purchase-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

.model-provider-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  max-width: 1120px;
  margin: 0 auto;
}

.provider-card {
  display: grid;
  gap: 18px;
  align-content: start;
  min-width: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: color-mix(in srgb, var(--surface), transparent 2%);
  box-shadow: var(--shadow);
}

.provider-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.provider-head span {
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--text);
  color: var(--surface);
  font-family: var(--display-font);
  font-weight: 850;
}

.provider-head p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.model-chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.model-chip-grid b {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 6px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--text);
  font-size: 12px;
  font-weight: 720;
  overflow-wrap: anywhere;
}

.docs-layout {
  display: grid;
  grid-template-columns: 220px minmax(0, 760px);
  gap: 28px;
  justify-content: center;
}

.doc-nav {
  display: grid;
  gap: 8px;
  align-self: start;
}

.doc-nav a,
.doc-nav button {
  color: var(--muted);
  text-decoration: none;
  padding: 9px 10px;
  border-radius: 8px;
  border: 0;
  background: transparent;
  text-align: left;
}

.doc-nav a:hover,
.doc-nav button:hover {
  background: var(--surface-soft);
  color: var(--text);
}

.doc-content {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 26px;
  box-shadow: var(--shadow);
}

.doc-content pre {
  border-radius: 8px;
  background: #07111f;
  color: #d7e1ef;
}

.playground-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(0, 1.18fr);
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
}

.playground-form {
  display: grid;
  gap: 14px;
}

.playground-form label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

textarea {
  min-height: 140px;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 10px;
  font: inherit;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hint-text {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.playground-output pre {
  min-height: 430px;
  border-radius: 8px;
  background: #07111f;
  color: #d7e1ef;
  white-space: pre-wrap;
  word-break: break-word;
}

.login-view.active {
  display: grid;
  min-height: calc(100vh - 72px);
  place-items: center;
}

.login-box {
  display: grid;
  gap: 16px;
  width: min(100%, 420px);
  padding: 28px;
  border-radius: 8px;
}

.login-box label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 14px;
}

.login-box .check-line {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  color: var(--text);
  line-height: 1.45;
}

.check-line input {
  width: 17px;
  height: 17px;
  min-height: 0;
  margin-top: 2px;
}

.check-line button {
  border: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 720;
  padding: 0;
}

.login-box p {
  margin: 0;
  color: var(--muted);
  text-align: center;
}

.login-box .form-message {
  min-height: 20px;
  font-size: 13px;
  text-align: left;
}

.form-message[data-type="alert"] {
  color: var(--danger);
}

.form-message[data-type="success"] {
  color: var(--accent-2);
}

.login-box p button {
  border: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 700;
}

.success-box {
  text-align: left;
}

.success-copy {
  margin: 0;
  color: var(--muted);
  text-align: left;
}

.success-detail {
  display: grid;
  gap: 4px;
  padding: 13px;
  border-radius: 8px;
  background: var(--surface-soft);
}

.success-detail span {
  color: var(--muted);
  font-size: 13px;
}

.success-detail strong {
  overflow-wrap: anywhere;
}

.terms-content {
  max-width: 820px;
  margin: 0 auto;
}

.contact-widget {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 50;
  display: grid;
  justify-items: end;
  gap: 10px;
}

.contact-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 7px 9px 7px 16px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(135deg, #21a7ff, #5de1ee);
  color: #fff;
  box-shadow: 0 18px 42px rgba(33, 167, 255, 0.28);
  font-weight: 760;
}

body.dark .contact-toggle {
  background: linear-gradient(135deg, #2563eb, #22d3ee);
  box-shadow: 0 18px 42px rgba(34, 211, 238, 0.22);
}

body:not(.dark) .contact-toggle {
  background: linear-gradient(135deg, #145df5, #5de1ee);
}

.contact-toggle b {
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--accent);
  font-size: 20px;
  line-height: 1;
}

.contact-card {
  position: relative;
  overflow: hidden;
  width: min(300px, calc(100vw - 28px));
  padding: 16px;
  border: 1px solid rgba(125, 211, 252, 0.28);
  border-radius: 8px;
  background:
    radial-gradient(circle at 18% 18%, rgba(93, 225, 238, 0.28), transparent 28%),
    radial-gradient(circle at 86% 12%, rgba(96, 165, 250, 0.28), transparent 24%),
    radial-gradient(circle at 62% 78%, rgba(20, 93, 245, 0.24), transparent 30%),
    linear-gradient(145deg, #07111f 0%, #0b1727 58%, #10172a 100%);
  color: #edf7ff;
  box-shadow: 0 24px 70px rgba(3, 12, 27, 0.36);
}

body.dark .contact-card {
  border-color: rgba(147, 197, 253, 0.32);
  background:
    radial-gradient(circle at 20% 14%, rgba(59, 130, 246, 0.38), transparent 28%),
    radial-gradient(circle at 84% 18%, rgba(45, 212, 191, 0.26), transparent 24%),
    radial-gradient(circle at 52% 82%, rgba(99, 102, 241, 0.28), transparent 32%),
    linear-gradient(145deg, #030712 0%, #07111f 55%, #111827 100%);
}

body:not(.dark) .contact-card {
  background:
    radial-gradient(circle at 18% 18%, rgba(20, 93, 245, 0.18), transparent 28%),
    radial-gradient(circle at 86% 12%, rgba(45, 212, 191, 0.2), transparent 24%),
    radial-gradient(circle at 62% 78%, rgba(96, 165, 250, 0.18), transparent 30%),
    linear-gradient(145deg, #f8fbff 0%, #eaf4ff 58%, #eef2ff 100%);
  color: #102033;
  box-shadow: 0 24px 70px rgba(18, 33, 61, 0.14);
}

.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle, rgba(255, 255, 255, 0.72) 0 1px, transparent 1px),
    radial-gradient(circle, rgba(125, 211, 252, 0.5) 0 1px, transparent 1px);
  background-position: 12px 16px, 44px 52px;
  background-size: 58px 58px, 86px 86px;
  opacity: 0.28;
}

.contact-card > * {
  position: relative;
  z-index: 1;
}

.contact-card h3 {
  margin-bottom: 10px;
}

.wechat-id {
  padding: 11px 13px;
  border: 1px solid rgba(203, 213, 225, 0.28);
  border-radius: 8px;
  background: rgba(15, 23, 42, 0.78);
  color: #f8fbff;
  font-size: 20px;
  font-weight: 820;
  overflow-wrap: anywhere;
}

body:not(.dark) .wechat-id {
  border-color: rgba(20, 93, 245, 0.18);
  background: rgba(255, 255, 255, 0.78);
  color: #111827;
}

.contact-card p {
  margin: 10px 0 13px;
  color: #b9c8dd;
}

body:not(.dark) .contact-card p {
  color: #52657f;
}

.contact-card .primary-btn {
  width: 100%;
}

.copy-status {
  display: block;
  min-height: 16px;
  margin-top: 7px;
  color: var(--accent-2);
  font-size: 12px;
}

.contact-widget.collapsed .contact-card {
  display: none;
}

.contact-widget.collapsed .contact-toggle b {
  transform: rotate(45deg);
}

@media (max-width: 980px) {
  .topbar {
    flex-wrap: wrap;
  }

  .main-nav {
    order: 3;
    flex-basis: 100%;
  }

  .hero,
  .app-shell.active,
  .docs-layout,
  .playground-layout,
  .purchase-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .terminal-panel {
    min-width: 0;
  }

  .feature-grid,
  .model-provider-grid,
  .pricing-grid,
  .stat-grid,
  .dashboard-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sidebar {
    position: static;
    min-height: auto;
    grid-template-columns: repeat(5, minmax(110px, 1fr));
    overflow-x: auto;
  }

  .sidebar-title {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .topbar {
    gap: 12px;
    padding-inline: 12px;
  }

  .top-actions {
    width: 100%;
  }

  .top-actions .primary-btn,
  .top-actions .ghost-btn {
    flex: 1;
  }

  .view {
    padding-inline: 12px;
  }

  h1 {
    font-size: 42px;
  }

  .hero-metrics,
  .feature-grid,
  .model-provider-grid,
  .pricing-grid,
  .stat-grid,
  .dashboard-grid,
  .route-grid {
    grid-template-columns: 1fr;
  }

  .workspace-head,
  .panel-title,
  .pricing-note {
    align-items: flex-start;
    flex-direction: column;
  }

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

}