:root {
  --bg: #f7f7f4;
  --surface: #ffffff;
  --surface-soft: #fbfbf8;
  --surface-tint: #eef5f1;
  --text: #202525;
  --muted: #687271;
  --muted-2: #8a9290;
  --line: #e4e7e3;
  --line-strong: #d5dad4;
  --brand: #0f766e;
  --brand-strong: #0b5d56;
  --brand-soft: #e0f1ec;
  --blue: #2563eb;
  --warn: #b45309;
  --ok: #16803a;
  --danger: #b91c1c;
  --shadow: 0 16px 44px rgba(22, 30, 28, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: ui-sans-serif, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background:
    linear-gradient(90deg, rgba(15, 118, 110, 0.04) 0, transparent 360px),
    linear-gradient(180deg, #fbfbf8 0%, var(--bg) 100%);
}

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

code {
  padding: 0.12rem 0.34rem;
  border-radius: 6px;
  background: #eef1ed;
  color: #173533;
  font-size: 0.92em;
}

pre,
pre code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.lang-switcher {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 50;
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.lang-switcher label {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 700;
}

.lang-switcher select {
  min-width: 94px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: white;
  padding: 8px 12px;
  color: var(--text);
}

.page-shell,
.auth-shell {
  min-height: 100vh;
}

.page-shell {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 56px;
}

.docs-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr) 230px;
  gap: 28px;
  width: min(1500px, calc(100% - 28px));
  margin: 0 auto;
}

.docs-sidebar,
.docs-toc {
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
}

.docs-toc {
  right: 0;
  border-right: 0;
  border-left: 1px solid var(--line);
}

.docs-main {
  min-width: 0;
  padding: 36px 0 72px;
}

.docs-brand,
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.14rem;
  font-weight: 850;
  letter-spacing: 0.04em;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 10px;
  color: white;
  background: linear-gradient(135deg, var(--brand), #133f3b);
  font-weight: 900;
}

.docs-nav,
.docs-toc {
  display: grid;
  align-content: start;
  gap: 4px;
}

.docs-nav {
  margin-top: 28px;
}

.docs-nav p,
.docs-toc p {
  margin: 20px 0 8px;
  color: var(--muted-2);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.docs-nav a,
.docs-toc a,
.sidebar-nav a {
  color: var(--muted);
  border-radius: 10px;
  padding: 9px 12px;
  font-size: 0.96rem;
}

.docs-nav a:hover,
.docs-toc a:hover,
.sidebar-nav a:hover,
.sidebar-nav a.active {
  color: var(--text);
  background: var(--surface-tint);
}

.docs-section {
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
}

.hero-doc {
  padding-top: 12px;
}

.docs-section h1 {
  max-width: 900px;
  margin: 10px 0 18px;
  font-size: clamp(2.35rem, 6vw, 5.1rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

.docs-section h2,
.dashboard-header h1,
.auth-card h1,
.panel h2 {
  margin: 0 0 14px;
  letter-spacing: -0.035em;
  line-height: 1.08;
}

.docs-section h2 {
  font-size: clamp(1.7rem, 3vw, 2.25rem);
}

.docs-section p,
.lead,
.feature-card p,
.price-card p,
.list-card p,
.provider-card p,
.summary-card span,
.metric-card span,
.stat-card span,
.muted,
.message,
.invoice-row span {
  color: var(--muted);
  line-height: 1.74;
}

.lead {
  max-width: 860px;
  font-size: 1.08rem;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.topbar,
.dashboard-header,
.panel-heading,
.row,
.nav,
.hero-actions,
.header-actions,
.admin-actions,
.button-row,
.section-row,
.portal-key-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.topbar {
  padding: 10px 0 24px;
}

.nav a {
  color: var(--muted);
  font-weight: 650;
}

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

.hero-actions,
.button-row,
.header-actions,
.portal-key-actions {
  justify-content: flex-start;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  border-radius: 999px;
  padding: 10px 17px;
  font: inherit;
  font-weight: 800;
  border: 1px solid var(--line-strong);
  cursor: pointer;
  background: var(--surface);
  color: var(--text);
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.button:hover {
  transform: translateY(-1px);
  border-color: #bfc8c1;
}

.button.primary {
  color: white;
  background: var(--brand);
  border-color: var(--brand);
}

.button.primary:hover {
  background: var(--brand-strong);
}

.button.secondary {
  background: var(--surface-soft);
}

.button.full {
  width: 100%;
}

.docs-kpis,
.steps-grid,
.feature-grid,
.pricing-grid,
.stats-grid,
.list-grid,
.provider-grid,
.summary-grid,
.docs-grid,
.faq-list,
.metric-grid {
  display: grid;
  gap: 14px;
}

.docs-kpis {
  grid-template-columns: repeat(3, 1fr);
  margin-top: 28px;
}

.steps-grid,
.feature-grid,
.pricing-grid,
.docs-grid,
.faq-list {
  grid-template-columns: repeat(3, 1fr);
}

.stats-grid,
.summary-grid {
  grid-template-columns: repeat(4, 1fr);
}

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

.docs-kpis article,
.hero-card,
.feature-card,
.price-card,
.auth-card,
.panel,
.sidebar,
.stat-card,
.list-card,
.provider-card,
.summary-card,
.mini-panel,
.usage-row,
.beta-form,
.application-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.docs-kpis article,
.feature-card,
.price-card,
.stat-card,
.list-card,
.provider-card,
.summary-card,
.mini-panel,
.usage-row,
.application-card {
  padding: 18px;
}

.docs-kpis span,
.metric-card span,
.stat-card span {
  display: block;
  color: var(--muted);
  font-size: 0.92rem;
}

.docs-kpis strong,
.metric-card strong,
.stat-card strong,
.price,
.invoice-row strong,
.summary-card strong {
  display: block;
  margin-top: 8px;
  overflow-wrap: anywhere;
}

.callout {
  margin-top: 18px;
  padding: 16px 18px;
  border-radius: var(--radius);
  border: 1px solid #c8ddd6;
  background: #eef8f4;
  color: #244743;
}

.code-block,
.mini-panel pre {
  overflow: auto;
  margin: 18px 0 0;
  border-radius: var(--radius);
  padding: 18px;
  background: #17211f;
  color: #ecf7f2;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.06);
}

.code-block code,
.mini-panel pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.pricing-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.pricing-table th,
.pricing-table td {
  padding: 17px 18px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

.pricing-table th {
  color: #1f2928;
  background: #f2f5f1;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
}

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

.price-card.featured {
  border-color: #9fd1c2;
  background: linear-gradient(180deg, #ffffff, #f1faf6);
}

.price {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--brand-strong);
  letter-spacing: -0.04em;
}

.badge,
.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  padding: 7px 11px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 750;
  background: var(--brand-soft);
  color: var(--brand-strong);
}

.status.warning {
  background: #fef3c7;
  color: var(--warn);
}

.status.healthy,
.status.active,
.status.approved {
  background: #dcfce7;
  color: var(--ok);
}

.status.paused {
  background: #e5e7eb;
  color: #475569;
}

.status.new {
  background: #dbeafe;
  color: var(--blue);
}

.status.contacted {
  background: #fef3c7;
  color: #a16207;
}

.status.rejected {
  background: #fee2e2;
  color: var(--danger);
}

.auth-shell {
  display: grid;
  place-items: center;
  padding: 24px;
}

.admin-shell {
  padding-block: 48px;
}

.auth-card {
  width: min(760px, 100%);
  padding: 28px;
}

.auth-card.wide {
  width: min(980px, 100%);
}

.auth-card a {
  color: var(--brand-strong);
  font-weight: 800;
}

.auth-form,
.inline-form,
.beta-form {
  display: grid;
  gap: 14px;
}

.auth-form {
  margin: 24px 0 12px;
}

.inline-form {
  grid-template-columns: 1.2fr 0.6fr 0.8fr auto;
  align-items: end;
}

.auth-form label,
.inline-form label,
.beta-form label,
.application-field {
  display: grid;
  gap: 8px;
  font-weight: 750;
}

input,
textarea,
select,
.auth-form input,
.inline-form input,
.beta-form input,
.beta-form textarea,
.application-field select,
.application-field textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 11px 13px;
  font: inherit;
  background: white;
  color: var(--text);
}

input:focus,
textarea:focus,
select:focus {
  outline: 3px solid rgba(15, 118, 110, 0.14);
  border-color: var(--brand);
}

.beta-form {
  padding: 20px;
}

.simple-list {
  display: grid;
  gap: 10px;
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
}

.simple-list li {
  border-radius: 999px;
  padding: 8px 12px;
  background: var(--surface-tint);
  color: var(--muted);
}

.dashboard-shell {
  display: grid;
  grid-template-columns: 255px minmax(0, 1fr);
  gap: 24px;
  width: min(1390px, calc(100% - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 22px 0 48px;
}

.sidebar {
  position: sticky;
  top: 22px;
  height: fit-content;
  padding: 22px;
}

.sidebar-nav {
  display: grid;
  gap: 6px;
  margin-top: 22px;
}

.dashboard-content {
  display: grid;
  align-content: start;
  gap: 18px;
  min-width: 0;
}

.dashboard-header,
.panel {
  padding: 22px;
}

.panel-heading {
  align-items: flex-start;
  margin-bottom: 16px;
}

.invoice-list,
.usage-list,
.application-list {
  display: grid;
  gap: 12px;
}

.invoice-row,
.usage-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1.2fr 0.8fr 0.8fr;
  gap: 12px;
  align-items: center;
}

.portal-toast {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 60;
  min-width: 220px;
  max-width: min(360px, calc(100vw - 32px));
  padding: 14px 16px;
  border-radius: var(--radius);
  background: rgba(15, 118, 110, 0.96);
  color: white;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 160ms ease, transform 160ms ease;
}

.portal-toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.portal-filter {
  display: grid;
  gap: 6px;
  min-width: 190px;
}

.product-shot,
.product-layout,
.product-panels,
.pricing-grid-compact {
  display: grid;
  gap: 14px;
}

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

.product-panel {
  border-radius: var(--radius);
  padding: 16px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
}

.product-panel.wide {
  grid-column: span 2;
}

.window-dots {
  display: flex;
  gap: 7px;
}

.window-dots span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: #c8d0cc;
}

.product-nav {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.product-nav span {
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--brand-soft);
  color: var(--brand-strong);
  font-size: 0.9rem;
  font-weight: 800;
}

@media (max-width: 1180px) {
  .docs-shell {
    grid-template-columns: 235px minmax(0, 1fr);
  }

  .docs-toc {
    display: none;
  }
}

@media (max-width: 900px) {
  .docs-shell,
  .dashboard-shell,
  .steps-grid,
  .feature-grid,
  .pricing-grid,
  .stats-grid,
  .summary-grid,
  .metric-grid,
  .docs-kpis,
  .docs-grid,
  .faq-list,
  .inline-form {
    grid-template-columns: 1fr;
  }

  .docs-sidebar,
  .sidebar {
    position: static;
    height: auto;
  }

  .docs-shell {
    width: min(100% - 24px, 760px);
  }

  .docs-sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    padding-inline: 0;
  }

  .docs-main {
    padding-top: 12px;
  }

  .dashboard-header,
  .panel-heading,
  .section-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .invoice-row,
  .usage-row,
  .product-panels {
    grid-template-columns: 1fr;
  }

  .product-panel.wide {
    grid-column: auto;
  }

  .lang-switcher {
    position: static;
    width: fit-content;
    margin: 12px;
  }
}

/* Sub2API-style management console */
.console-shell {
  display: grid;
  grid-template-columns: 264px minmax(0, 1fr);
  min-height: 100vh;
  background:
    radial-gradient(circle at 85% 0%, rgba(15, 118, 110, 0.12), transparent 330px),
    linear-gradient(180deg, #f8faf9 0%, #eef3ef 100%);
}

.console-sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 22px 16px;
  overflow: auto;
  color: #dbe7e3;
  background: linear-gradient(180deg, #172421 0%, #0f1a18 100%);
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 18px 0 40px rgba(10, 17, 15, 0.12);
}

.console-sidebar .brand {
  color: #ffffff;
}

.stack-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar-caption {
  margin: 10px 10px 24px;
  color: #87a19a;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.console-sidebar .sidebar-nav {
  gap: 4px;
}

.console-sidebar .sidebar-nav a {
  display: flex;
  align-items: center;
  min-height: 40px;
  color: #b8cac5;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 750;
}

.console-sidebar .sidebar-nav a:hover,
.console-sidebar .sidebar-nav a.active {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.08);
}

.console-main {
  display: grid;
  align-content: start;
  gap: 18px;
  min-width: 0;
  padding: 24px;
}

.console-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.console-topbar h1 {
  margin: 0;
  font-size: clamp(1.75rem, 3vw, 2.45rem);
  letter-spacing: -0.045em;
}

.gateway-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.8fr);
  gap: 18px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.12), transparent 55%),
    #ffffff;
}

.gateway-hero h2 {
  font-size: clamp(1.5rem, 2.5vw, 2.15rem);
}

.gateway-flow {
  display: grid;
  align-content: center;
  gap: 10px;
}

.gateway-flow span {
  position: relative;
  display: block;
  padding: 13px 16px;
  border: 1px solid #cae2dc;
  border-radius: 14px;
  color: #0d4740;
  background: #effaf6;
  font-weight: 850;
}

.gateway-flow span:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 28px;
  bottom: -11px;
  width: 2px;
  height: 10px;
  background: #83c5b5;
}

.group-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.group-card {
  display: grid;
  gap: 8px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fbfcfb;
}

.group-card.active {
  border-color: #8fcfbd;
  background: linear-gradient(180deg, #ffffff, #edf8f4);
}

.group-card.dashed {
  border-style: dashed;
}

.group-card strong {
  font-size: 1.12rem;
}

.group-card span,
.group-card small {
  color: var(--muted);
  line-height: 1.55;
}

.compact-form {
  max-width: 880px;
}

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

.key-create-form .button {
  min-height: 48px;
}

.application-card,
.list-card,
.summary-card,
.stat-card,
.usage-row,
.invoice-row {
  border-radius: 16px;
  box-shadow: none;
}

.application-card {
  display: grid;
  gap: 14px;
  border-color: #dde5df;
}

.application-card .row h3,
.list-card .row h3 {
  margin: 0;
}

.application-card p,
.list-card p {
  margin: 0;
}

.application-card label span,
.list-card label span,
.auth-form label span,
.inline-form label span {
  color: #33413f;
  font-size: 0.9rem;
}

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

#upstream-account-list,
#package-catalog-list,
#customer-plans-list,
#beta-applications-list,
#recharge-requests-list,
#orders-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

#upstream-account-list .application-card,
#customer-plans-list .application-card {
  background:
    linear-gradient(180deg, rgba(15, 118, 110, 0.035), transparent 36%),
    #ffffff;
}

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

.usage-row,
.invoice-row {
  border: 1px solid var(--line);
  background: #ffffff;
  padding: 14px 16px;
}

.summary-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.summary-card {
  min-height: 116px;
  background: #fbfcfb;
}

.summary-card:last-child {
  grid-column: span 2;
}

.panel {
  border-radius: 20px;
}

.panel pre {
  overflow: auto;
  margin: 0;
  border-radius: 16px;
  padding: 18px;
  background: #111c19;
  color: #e8f7f1;
}

.panel pre code {
  padding: 0;
  background: transparent;
  color: inherit;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.message {
  min-height: 1.2em;
  font-weight: 750;
}

@media (max-width: 1180px) {
  .group-grid,
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .application-list,
  #upstream-account-list,
  #package-catalog-list,
  #customer-plans-list,
  #beta-applications-list,
  #recharge-requests-list,
  #orders-list,
  .list-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .console-shell {
    grid-template-columns: 1fr;
  }

  .console-sidebar {
    position: static;
    height: auto;
  }

  .console-main {
    padding: 14px;
  }

  .console-topbar,
  .gateway-hero,
  .key-create-form {
    grid-template-columns: 1fr;
  }

  .console-topbar {
    flex-direction: column;
  }

  .group-grid,
  .summary-grid {
    grid-template-columns: 1fr;
  }

  .summary-card:last-child {
    grid-column: auto;
  }
}