body.page-landing {
  min-width: 320px;
  background: var(--canvas);
  --on-dark: #ffffff;
  --on-dark-mute: rgba(255, 255, 255, 0.7);
  --surface-dark: #171717;
  --terminal-red: #ff5f56;
  --terminal-yellow: #ffbd2e;
  --terminal-green: #27c93f;
}

.landing-header {
  border-bottom: 1px solid var(--hairline);
  background: var(--canvas);
}

.landing-header-inner {
  min-height: 72px;
}

.landing-brand {
  color: var(--ink);
}

.landing-nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.landing-nav > a:not(.button) {
  color: var(--body);
  font-size: 14px;
  text-decoration: none;
}

.landing-nav > a:not(.button):hover {
  color: var(--ink);
}

.landing-shell {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 72px 0 96px;
}

.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.03fr) minmax(420px, 0.97fr);
  align-items: center;
  gap: 72px;
  min-height: 500px;
}

.landing-hero-copy {
  max-width: 620px;
}

.landing-eyebrow {
  margin: 0 0 14px;
  color: var(--body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.landing-hero h1 {
  max-width: 620px;
  margin: 0 0 22px;
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.landing-hero h1 span {
  display: block;
}

.landing-lead {
  max-width: 580px;
  margin: 0;
  color: var(--body);
  font-size: 18px;
  line-height: 1.65;
}

.landing-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}

.landing-primary-action,
.landing-secondary-action {
  min-height: 44px;
  padding: 10px 22px;
}

.landing-note {
  margin: 16px 0 0;
  color: var(--mute);
  font-size: 14px;
}

.landing-model-index {
  min-width: 0;
  padding: 30px 0 30px 40px;
  border-left: 1px solid var(--hairline);
}

.landing-model-index-header {
  max-width: 440px;
}

.landing-model-index-kicker {
  margin: 0 0 10px;
  color: var(--body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1.4;
}

.landing-model-index h2 {
  margin: 0;
  font-family: "SF Pro Rounded", ui-rounded, ui-sans-serif, sans-serif;
  font-size: clamp(28px, 3.4vw, 38px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.18;
}

.landing-model-index-intro {
  margin: 12px 0 0;
  color: var(--body);
  font-size: 15px;
  line-height: 1.6;
}

.landing-model-index-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 20px;
  margin-top: 26px;
  border-top: 1px solid var(--hairline);
}

.landing-model-index-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 10px;
  min-width: 0;
  min-height: 60px;
  border-bottom: 1px solid var(--hairline);
  color: var(--ink);
  text-decoration: none;
}

.landing-model-index-item:hover {
  color: #2563eb;
}

.landing-model-index-number {
  color: var(--mute);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

.landing-model-index-copy {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.landing-model-index-copy strong {
  overflow: hidden;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-model-index-copy span {
  overflow: hidden;
  color: var(--body);
  font-size: 14px;
  line-height: 1.35;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.landing-model-index-arrow {
  color: var(--mute);
  font-size: 20px;
}

.landing-section {
  padding-top: 120px;
  scroll-margin-top: 24px;
}

.landing-section-heading {
  max-width: 620px;
  margin-bottom: 28px;
}

.landing-section-heading h2,
.landing-account-band h2 {
  margin: 0;
  font-family: "SF Pro Rounded", ui-rounded, ui-sans-serif, sans-serif;
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.18;
}

.landing-section-heading > p:last-child {
  margin: 14px 0 0;
  color: var(--body);
  font-size: 16px;
  line-height: 1.6;
}

.capability-grid,
.model-grid,
.scenario-grid {
  display: grid;
  gap: 14px;
}

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

.landing-card,
.model-card,
.scenario-card {
  min-width: 0;
  padding: 24px;
  border: 1px solid var(--hairline);
  border-radius: 16px;
  background: var(--surface-card);
}

.landing-card {
  min-height: 250px;
}

.landing-card-index,
.scenario-index {
  color: var(--mute);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

.landing-card h3,
.model-card h3,
.scenario-card h3 {
  margin: 44px 0 10px;
  font-size: 21px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.3;
}

.landing-card p,
.model-card p,
.scenario-card p,
.landing-account-band p {
  margin: 0;
  color: var(--body);
  font-size: 16px;
  line-height: 1.65;
}

.landing-card-code {
  display: inline-block;
  margin-top: 22px;
  color: var(--ink);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 14px;
}

.landing-models-section,
.scenarios-section {
  border-top: 1px solid var(--hairline);
}

.landing-section-heading-wide {
  max-width: 760px;
}

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

.model-card {
  position: relative;
  min-height: 184px;
  padding: 26px 28px;
  scroll-margin-top: 32px;
  overflow: hidden;
  border-color: transparent;
  background: var(--canvas);
  isolation: isolate;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease;
}

.model-card-sweep {
  position: absolute;
  z-index: 0;
  inset: 0;
  padding: 1.5px;
  border-radius: inherit;
  background: conic-gradient(
    from var(--model-card-angle),
    transparent 0deg 220deg,
    #00c2ff 250deg,
    #2563eb 275deg,
    #7c3aed 300deg,
    transparent 330deg 360deg
  );
  opacity: 0;
  pointer-events: none;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  transition: opacity 180ms ease;
}

@property --model-card-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

@keyframes model-card-border-sweep {
  to {
    --model-card-angle: 360deg;
  }
}

.model-card:hover,
.model-card:focus-within {
  transform: translateY(-2px);
  box-shadow: 0 16px 34px rgba(31, 67, 112, 0.12);
}

.model-card:hover .model-card-sweep,
.model-card:focus-within .model-card-sweep {
  opacity: 1;
  animation: model-card-border-sweep 2.4s linear infinite;
}

.model-card-content {
  position: relative;
  z-index: 1;
}

.model-card-heading {
  display: flex;
  align-items: flex-start;
  gap: 18px;
}

.model-provider-icon {
  display: inline-flex;
  flex: 0 0 58px;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border: 1px solid var(--hairline);
  border-radius: 12px;
  background: var(--canvas);
}

.model-provider-icon img {
  display: block;
  width: 42px;
  height: 42px;
}

.model-provider-fallback {
  color: var(--mute);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.05em;
}

.model-provider-icon[data-logo-variant="wordmark"] img {
  width: 48px;
  height: auto;
  max-height: 42px;
}

.model-provider-icon[data-logo-variant="mark-crop"] {
  overflow: hidden;
}

.model-provider-icon[data-logo-variant="mark-crop"] img {
  width: 50px;
  height: 42px;
  max-width: none;
  object-fit: cover;
  object-position: left center;
}

.model-card-title-group {
  flex: 1 1 auto;
  min-width: 0;
}

.model-card-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 12px;
}

.model-card h3 {
  margin: 0;
  color: var(--ink-deep);
  font-size: 25px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.model-card-abilities {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.model-chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid #d5e3f4;
  border-radius: 3px;
  background: #f7fbff;
  color: #3f607d;
  font-size: 14px;
  line-height: 1.2;
}

.model-card p {
  max-width: 760px;
  margin: 14px 0 0;
  color: #526681;
  font-size: 17px;
  line-height: 1.55;
}

.model-card-meta {
  margin-top: 12px;
  color: var(--mute);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 14px;
}

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

.scenario-card {
  min-height: 205px;
}

.scenario-card h3 {
  margin-top: 42px;
}

.landing-account-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  margin-top: 120px;
  padding: 36px 40px;
  border-radius: 18px;
  background: var(--surface-dark);
  color: var(--on-dark);
}

.landing-account-band .landing-eyebrow {
  color: var(--on-dark-mute);
}

.landing-account-band h2 {
  margin-bottom: 12px;
}

.landing-account-band p:last-child {
  max-width: 690px;
  color: var(--on-dark-mute);
}

.landing-account-band .button-pill-on-dark {
  flex: 0 0 auto;
  min-height: 44px;
  border-color: var(--canvas);
  background: var(--canvas);
  color: var(--ink);
  white-space: nowrap;
}

.landing-account-band .button-pill-on-dark:hover:not(:disabled) {
  border-color: var(--surface-soft);
  background: var(--surface-soft);
}

.faq-section {
  max-width: 860px;
  margin: 0 auto;
}

.faq-list {
  border-top: 1px solid var(--hairline);
}

.faq-list details {
  border-bottom: 1px solid var(--hairline);
}

.faq-list summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
  padding: 14px 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  flex: 0 0 auto;
  color: var(--body);
  content: "+";
  font-size: 22px;
  font-weight: 300;
}

.faq-list details[open] summary::after {
  content: "−";
}

.faq-list details p {
  max-width: 760px;
  margin: -2px 40px 20px 0;
  color: var(--body);
  font-size: 16px;
  line-height: 1.65;
}

.landing-footer {
  border-top: 1px solid var(--hairline);
  background: var(--canvas);
}

.cert {
  margin: 10px;
  padding-top: 20px;
  color: #9b9b9b;
  font-size: 12px;
  text-align: center;
}

.cert img {
  height: 56px;
  margin: 12px;
  max-width: calc(100% - 24px);
  object-fit: contain;
}

.cert p {
  margin: 8px;
}

.cert span {
  display: inline-block;
  height: 30px;
  margin: 0 10px;
  line-height: 30px;
  vertical-align: middle;
}

.cert a,
.cert a:hover {
  color: inherit;
  text-decoration: none;
}

.cert-policy-links {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.cert-policy-links span {
  margin: 0;
}

.cert span.cert-email {
  display: inline;
  height: auto;
  margin: 0;
  line-height: inherit;
  vertical-align: baseline;
  unicode-bidi: bidi-override;
  direction: rtl;
}

.shjbzx {
  position: relative;
  display: inline-block;
  width: 80px;
  height: 30px;
  background: url("https://www.jianguoyun.com/static/images/shjbzx.png") center center no-repeat;
}

.shjbzx:hover {
  background-image: url("https://www.jianguoyun.com/static/images/shjbzx_hover.png");
}

@media (max-width: 1060px) {
  .landing-hero {
    grid-template-columns: minmax(0, 1fr) minmax(360px, 0.9fr);
    gap: 48px;
  }

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

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

@media (max-width: 840px) {
  .landing-hero {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

  .landing-model-index {
    width: min(680px, 100%);
  }
}

@media (max-width: 760px) {
  .landing-header-inner {
    min-height: 64px;
  }

  .landing-nav {
    gap: 12px;
  }

  .landing-nav > a:not(.button) {
    display: none;
  }

  .landing-shell {
    width: min(100% - 32px, 1180px);
    padding: 48px 0 64px;
  }

  .landing-hero h1 {
    font-size: clamp(36px, 11vw, 52px);
  }

  .landing-lead {
    font-size: 17px;
  }

  .landing-section {
    padding-top: 80px;
  }

  .capability-grid,
  .model-grid,
  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .landing-card,
  .model-card,
  .scenario-card {
    min-height: 0;
  }

  .landing-account-band {
    align-items: flex-start;
    flex-direction: column;
    margin-top: 80px;
    padding: 28px 22px;
  }

  .landing-account-band .button-pill-on-dark {
    width: 100%;
  }
}

@media (max-width: 430px) {
  .landing-brand .brand-name {
    font-size: 14px;
  }

  .landing-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .landing-primary-action,
  .landing-secondary-action {
    width: 100%;
  }

  .landing-model-index {
    padding: 28px 0 0;
    border-top: 1px solid var(--hairline);
    border-left: 0;
  }

  .landing-model-index-list {
    grid-template-columns: 1fr;
    margin-top: 20px;
  }
}

@media (max-width: 960px) {
  .cert span {
    margin-right: 4px;
    margin-left: 4px;
  }

  .cert-policy-links {
    gap: 12px;
  }

  .cert-policy-links span {
    margin-right: 0;
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .model-card,
  .model-card-sweep {
    transition: none;
  }

  .model-card:hover .model-card-sweep,
  .model-card:focus-within .model-card-sweep {
    animation: none;
    background: #2563eb;
  }
}