:root {
  color-scheme: light;
  --bg: #f7f8f4;
  --panel: #ffffff;
  --panel-strong: #fbfcf8;
  --ink: #121914;
  --on-ink: #ffffff;
  --text: #18221d;
  --muted: #627067;
  --soft: #eef2eb;
  --line: #dbe3d8;
  --accent: #0f744f;
  --accent-2: #164fcb;
  --warn: #a86500;
  --danger: #b23c45;
  --shadow: 0 16px 34px rgba(24, 38, 29, 0.08);
  --header-bg: rgba(247, 248, 244, 0.92);
  --accent-soft: #e6f5ed;
  --accent-soft-line: #cfe6d8;
  --accent-soft-text: #37604e;
  --featured-bg: #eef8f2;
  --featured-line: #b8dec9;
  --code-bg: #101612;
  --code-border: #101612;
  --code-text: #edf7ee;
  --note-bg: #f4f8f1;
  --note-line: #d5e3d2;
  --note-text: #42604f;
  --page-gutter: clamp(1.25rem, 5vw, 4.5rem);
  --page-max: 1180px;
  --surface-app: var(--bg);
  --surface-panel: var(--panel);
  --surface-panel-strong: var(--panel-strong);
  --surface-subtle: var(--soft);
  --text-primary: var(--ink);
  --text-secondary: var(--text);
  --text-muted: var(--muted);
  --border-default: var(--line);
  --focus-ring: rgba(15, 116, 79, 0.14);
  --control-height: 38px;
  --radius-sm: 6px;
  --radius-md: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Avenir Next, Gill Sans, "Segoe UI", PingFang SC, Microsoft YaHei, sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

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

a:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 4px var(--focus-ring);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.site-header {
  align-items: center;
  background: var(--header-bg);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  display: grid;
  gap: 1rem;
  grid-template-columns: auto minmax(0, 1fr) auto;
  min-height: 72px;
  padding: 0 var(--page-gutter);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand,
nav,
.header-actions,
.hero-actions,
footer {
  align-items: center;
  display: flex;
  gap: 1rem;
}

.brand {
  color: var(--ink);
  font-weight: 900;
}

.brand-mark {
  display: block;
  flex: 0 0 auto;
  height: 2rem;
  object-fit: contain;
  width: 2rem;
}

nav {
  color: var(--muted);
  font-size: 0.92rem;
  justify-content: center;
}

nav a,
footer a,
.text-link,
.console-link,
.primary-action,
.secondary-action,
button {
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

nav a:hover,
footer a:hover,
.text-link:hover {
  color: var(--accent);
}

.header-actions {
  justify-self: end;
}

.text-link {
  color: var(--muted);
  font-weight: 750;
}

.console-link,
.primary-action,
.secondary-action {
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  font-weight: 850;
  min-height: var(--control-height);
  padding: 0 1rem;
  white-space: nowrap;
}

.text-link {
  white-space: nowrap;
}

.console-link {
  background: var(--surface-panel);
  justify-self: end;
}

.console-link:hover,
.secondary-action:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.preference-bar {
  align-items: center;
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.site-locale-switcher {
  align-items: center;
  background: var(--surface-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  display: inline-flex;
  flex: 0 0 auto;
  gap: 0.5rem;
  min-height: var(--control-height);
  padding: 0 12px;
}

.site-locale-switcher:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--focus-ring);
}

.locale-switcher__icon {
  color: var(--muted);
  fill: none;
  flex: 0 0 auto;
  height: 16px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
  width: 16px;
}

.sr-only {
  border: 0;
  clip: rect(0 0 0 0);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

.site-locale-switcher:hover .locale-switcher__icon,
.site-locale-switcher:focus-within .locale-switcher__icon {
  color: var(--accent);
}

.site-locale-switcher .language-select {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--text-primary);
  font: inherit;
  font-weight: 800;
  max-width: 148px;
  min-height: var(--control-height);
  min-width: 108px;
  padding: 0 4px;
}

.site-locale-switcher .language-select:focus {
  outline: 0;
}

.language-select option {
  color: #121914;
}

.hero {
  display: grid;
  gap: clamp(2rem, 6vw, 5rem);
  grid-template-columns: minmax(0, 48rem);
  min-height: auto;
  margin: 0 auto;
  padding: clamp(4.5rem, 10vh, 7.5rem) var(--page-gutter) clamp(3rem, 7vh, 5.5rem);
  width: min(100%, calc(var(--page-max) + (var(--page-gutter) * 2)));
}

.compact-hero {
  align-items: center;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.75fr);
}

.hero-copy {
  align-self: center;
}

.promo-strip {
  align-items: center;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--muted);
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-bottom: 1.2rem;
  padding: 0.45rem 0.65rem;
}

.promo-strip span {
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  padding: 0.26rem 0.42rem;
  text-transform: uppercase;
}

.promo-strip b {
  color: var(--muted);
  font-size: 0.86rem;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin: 0 0 1rem;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  color: var(--ink);
  font-size: clamp(2.7rem, 5.4vw, 4.9rem);
  letter-spacing: 0;
  line-height: 0.96;
  margin-bottom: 1.3rem;
  max-width: 11ch;
}

h2 {
  color: var(--ink);
  font-size: clamp(2rem, 4vw, 3.8rem);
  letter-spacing: 0;
  line-height: 1;
  margin-bottom: 1rem;
}

h3 {
  color: var(--ink);
  font-size: 1.08rem;
  line-height: 1.25;
}

.lead {
  color: var(--muted);
  font-size: clamp(1.02rem, 1.6vw, 1.16rem);
  line-height: 1.72;
  max-width: 40rem;
}

.primary-action {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--on-ink);
}

.primary-action:hover {
  background: var(--accent);
  border-color: var(--accent);
}

.secondary-action {
  background: transparent;
  color: var(--ink);
}

.base-url-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  display: grid;
  gap: 0.45rem;
  margin-top: 1.5rem;
  max-width: 36rem;
  padding: 1rem;
}

.base-url-panel span {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.base-url-panel code {
  color: var(--ink);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: clamp(1rem, 2vw, 1.34rem);
  overflow-wrap: anywhere;
}

.base-url-panel small {
  color: var(--muted);
  line-height: 1.55;
}

.hero-code {
  margin: 0;
}

.mac-terminal {
  align-self: center;
  background: #0b110d;
  border: 1px solid #1e2a22;
  border-radius: 8px;
  box-shadow: 0 22px 48px rgba(18, 25, 20, 0.18);
  color: #ecf7ee;
  overflow: hidden;
}

.terminal-titlebar {
  align-items: center;
  background: linear-gradient(180deg, #f3f0e9 0%, #dfdbd2 100%);
  border-bottom: 1px solid #c9c4ba;
  color: #485149;
  display: grid;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.72rem;
  font-weight: 800;
  grid-template-columns: 4.25rem 1fr 4.25rem;
  min-height: 2.35rem;
  padding: 0 0.85rem;
}

.terminal-lights {
  display: inline-flex;
  gap: 0.45rem;
}

.terminal-lights i {
  border-radius: 999px;
  display: block;
  height: 0.72rem;
  width: 0.72rem;
}

.terminal-lights i:nth-child(1) {
  background: #ff5f57;
}

.terminal-lights i:nth-child(2) {
  background: #ffbd2e;
}

.terminal-lights i:nth-child(3) {
  background: #28c840;
}

.terminal-title {
  justify-self: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.terminal-screen {
  background:
    radial-gradient(circle at 18% 0%, rgba(34, 123, 85, 0.18), transparent 35%),
    #0b120d;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: clamp(0.74rem, 1.2vw, 0.94rem);
  font-weight: 760;
  line-height: 1.75;
  min-height: 20rem;
  overflow-x: auto;
  padding: clamp(1.1rem, 2.7vw, 1.7rem);
  white-space: normal;
}

.terminal-prompt {
  color: #73df9d;
  display: block;
  margin-bottom: 0.45rem;
}

.terminal-line {
  display: block;
  min-height: 1.75em;
}

.terminal-gap {
  min-height: 1.25em;
}

.terminal-type {
  display: inline-block;
  overflow: hidden;
  vertical-align: top;
  white-space: pre;
  width: 0;
  animation: terminal-type 1.05s steps(var(--chars)) var(--delay) forwards;
}

.terminal-cursor {
  animation: terminal-cursor 820ms steps(1, end) infinite;
  background: #73df9d;
  display: inline-block;
  height: 1.1em;
  margin-left: 0.2rem;
  opacity: 0;
  transform: translateY(0.18em);
  width: 0.58em;
  animation-delay: 10.1s;
}

.visually-hidden {
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  height: 1px;
  margin: -1px;
  overflow: hidden;
  padding: 0;
  position: absolute;
  white-space: nowrap;
  width: 1px;
}

@keyframes terminal-type {
  to {
    width: calc(var(--chars) * 1ch);
  }
}

@keyframes terminal-cursor {
  0%,
  49% {
    opacity: 1;
  }

  50%,
  100% {
    opacity: 0;
  }
}

.notice-band,
.section-shell,
.pricing-panel {
  margin: 0 auto clamp(3.5rem, 8vw, 6.5rem);
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--page-max));
}

.page-hero {
  border-bottom: 1px solid var(--line);
  margin: 0 auto clamp(3rem, 5vw, 4.5rem);
  padding: clamp(5rem, 12vw, 8rem) 0 clamp(3rem, 6vw, 4.5rem);
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--page-max));
}

.page-hero h1 {
  font-size: clamp(2.35rem, 5vw, 4.5rem);
  line-height: 1;
  max-width: 13ch;
}

.notice-band {
  align-items: center;
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-line);
  color: var(--accent);
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  padding: 0.9rem 1rem;
}

.notice-band span {
  color: var(--accent-soft-text);
  text-align: right;
}

.section-shell,
.pricing-panel {
  border-top: 1px solid var(--line);
  padding-top: clamp(3rem, 6vw, 5rem);
}

.compact-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 2rem;
}

.compact-grid article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 12rem;
  padding: 1.15rem;
}

.compact-grid span {
  color: var(--accent);
  display: block;
  font-weight: 900;
  margin-bottom: 1.5rem;
}

.compact-grid p,
.pricing-summary p {
  color: var(--muted);
  line-height: 1.65;
}

.pricing-summary {
  align-items: center;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 1fr) auto;
}

.pricing-summary p {
  max-width: 46rem;
}

.feature-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.integration-section {
  align-items: start;
  display: grid;
  gap: 2rem;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
}

.integration-section > div p,
.model-coverage > p {
  color: var(--muted);
  line-height: 1.7;
  max-width: 46rem;
}

.provider-clouds h2 {
  max-width: 16ch;
}

.cloud-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.cloud-grid span {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--ink);
  font-weight: 850;
  min-height: 4.3rem;
  padding: 1rem;
}

.trust-strip,
.workflow-grid,
.faq-grid,
.plan-grid {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.trust-strip,
.workflow-grid,
.faq-grid,
.plan-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.topup-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 2rem;
}

.feature-grid article,
.info-card,
.doc-steps article,
.status-grid article,
.legal-card,
.trust-strip article,
.workflow-grid article,
.faq-grid article,
.plan-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 1.1rem;
}

.feature-grid article {
  min-height: 16rem;
}

.feature-grid span,
.info-card span,
.doc-steps span,
.workflow-grid span,
.plan-card span {
  color: var(--accent);
  font-weight: 900;
}

.trust-strip strong,
.plan-card strong {
  color: var(--ink);
  display: block;
  font-size: clamp(1.28rem, 2.2vw, 1.85rem);
  line-height: 1.08;
  margin-bottom: 0.8rem;
}

.feature-grid p,
.pricing-panel p,
.info-card p,
.model-grid p,
.doc-steps p,
.status-grid p,
.legal-card p,
.trust-strip span,
.workflow-grid p,
.faq-grid p,
.plan-card p,
td {
  color: var(--muted);
  line-height: 1.65;
}

.section-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.plan-card {
  min-height: 16rem;
}

.plan-card.featured {
  background: var(--featured-bg);
  border-color: var(--featured-line);
}

.commercial-table {
  padding-top: 3rem;
}

.model-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 2rem;
}

.model-grid article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-width: 0;
  padding: 1.2rem;
}

.model-grid span {
  color: var(--accent);
  display: block;
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
  text-transform: uppercase;
}

.model-grid strong {
  color: var(--ink);
  display: block;
  font-size: clamp(1.35rem, 2.8vw, 2.25rem);
  line-height: 1.08;
  max-width: 15ch;
}

.model-grid p {
  margin-top: 1.2rem;
}

.content-grid,
.doc-steps,
.status-grid {
  display: grid;
  gap: 1rem;
  margin: 0 auto clamp(3.5rem, 8vw, 6.5rem);
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--page-max));
}

.content-grid.inline-grid {
  margin: 2rem 0 0;
}

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

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

.doc-steps {
  grid-template-columns: minmax(220px, 0.7fr) minmax(320px, 1.6fr) minmax(220px, 0.7fr);
}

.info-card,
.doc-steps article,
.status-grid article,
.legal-card {
  min-width: 0;
}

.info-card h2,
.doc-steps h2,
.status-grid h2,
.legal-card h2 {
  font-size: 1.18rem;
  line-height: 1.2;
  margin-bottom: 0.7rem;
}

.info-card a,
.legal-card a {
  color: var(--accent);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  color: var(--code-text);
  margin: 1rem 0 0;
  max-width: 100%;
  overflow-x: auto;
  padding: 1rem;
  white-space: pre;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
  font-size: 0.88rem;
}

table {
  border-collapse: collapse;
  width: 100%;
}

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

th {
  color: var(--ink);
  font-size: 0.88rem;
  width: 14rem;
}

.mail-stack {
  display: grid;
  gap: 0.3rem;
}

.disclosure-note {
  background: var(--note-bg);
  border: 1px solid var(--note-line);
  border-radius: 8px;
  color: var(--note-text);
  line-height: 1.65;
  margin: 0 auto 2rem;
  padding: 1rem 1.2rem;
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--page-max));
}

.disclosure-note strong {
  color: var(--ink);
  display: block;
  margin-bottom: 0.35rem;
}

.legal-layout .legal-card {
  margin: 0 auto clamp(3.5rem, 8vw, 6.5rem);
  width: min(calc(100% - (var(--page-gutter) * 2)), var(--page-max));
}

.status-grid strong {
  color: var(--accent);
  display: inline-block;
  margin-top: 1rem;
}

.status-grid span {
  color: var(--muted);
  display: block;
  line-height: 1.55;
  margin-top: 0.75rem;
}

.lead,
h1,
h2,
h3,
p,
a,
td,
th {
  overflow-wrap: anywhere;
}

.pricing-panel {
  align-items: end;
  display: grid;
  gap: 2rem;
  grid-template-columns: 1fr auto;
}

.auth-layout {
  display: grid;
  gap: 5vw;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.75fr);
  min-height: calc(100vh - 72px);
  padding: clamp(4rem, 10vh, 7rem) var(--page-gutter) clamp(3rem, 8vh, 5rem);
}

.register-layout {
  grid-template-columns: minmax(0, 0.75fr) minmax(340px, 1.15fr);
}

.auth-copy {
  align-self: start;
  position: sticky;
  top: 7rem;
}

.auth-copy h1 {
  font-size: clamp(2.35rem, 5vw, 4.5rem);
  line-height: 1;
  max-width: 11ch;
}

.auth-stack {
  display: grid;
  gap: 1rem;
}

.auth-card,
.mode-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-width: 0;
  padding: 1.2rem;
}

.auth-card {
  display: grid;
  gap: 1rem;
}

.auth-card h2 {
  font-size: 1.45rem;
  line-height: 1.08;
}

.auth-card label {
  display: grid;
  gap: 0.45rem;
}

.auth-card label span,
.mode-panel span {
  color: var(--muted);
  line-height: 1.55;
}

.auth-card input,
.auth-card textarea {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  color: var(--text);
  font: inherit;
  min-height: 3rem;
  padding: 0.75rem 0.85rem;
  width: 100%;
}

.auth-card textarea {
  min-height: 7rem;
  resize: vertical;
}

.check-row {
  align-items: center;
  display: flex !important;
}

.check-row input {
  min-height: auto;
  width: auto;
}

.auth-card button {
  justify-content: center;
  width: 100%;
}

.form-status,
.auth-alt {
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

.form-status[data-state="success"] {
  color: var(--accent);
}

.form-status[data-state="error"] {
  color: var(--danger);
}

.auth-alt a {
  color: var(--accent);
  font-weight: 850;
}

.mode-panel {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
}

footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  justify-content: flex-end;
  min-height: 6rem;
  padding: 0 var(--page-gutter);
}

footer span {
  color: var(--ink);
  font-weight: 900;
  margin-right: auto;
}

@media (max-width: 900px) {
  .site-header,
  .hero,
  .pricing-panel,
  .content-grid,
  .content-grid.three,
  .doc-steps,
  .status-grid,
  .compact-hero,
  .compact-grid,
  .pricing-summary,
  .trust-strip,
  .workflow-grid,
  .faq-grid,
  .plan-grid,
  .topup-grid,
  .integration-section,
  .auth-layout,
  .register-layout {
    grid-template-columns: 1fr;
  }

  .site-header {
    align-items: start;
    padding-bottom: 1rem;
    padding-top: 1rem;
    position: static;
  }

  .console-link,
  .header-actions {
    justify-self: start;
  }

  .hero {
    padding-top: 4rem;
  }

  .hero-code {
    width: 100%;
  }

  .terminal-screen {
    min-height: auto;
  }

  .feature-grid,
  .model-grid,
  .cloud-grid {
    grid-template-columns: 1fr;
  }

  .page-hero {
    padding-top: 4rem;
  }

  .auth-copy {
    position: static;
  }

  .notice-band {
    align-items: start;
    flex-direction: column;
  }

  .notice-band span {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  .terminal-type {
    animation: none;
    width: auto;
  }

  .terminal-cursor {
    animation: none;
    opacity: 1;
  }
}

@media (max-width: 560px) {
  nav {
    flex-wrap: wrap;
  }

  .header-actions {
    align-items: stretch;
    flex-wrap: wrap;
  }

  .hero-actions,
  footer {
    align-items: stretch;
    flex-direction: column;
  }

  th,
  td {
    display: block;
    padding-left: 0;
    padding-right: 0;
    width: 100%;
  }
}