.ai-tools-hub-page {
  --ai-tools-bg: #f6f8ff;
  --ai-tools-bg-deep: #eef3ff;
  --ai-tools-surface: rgba(255, 255, 255, 0.88);
  --ai-tools-surface-strong: #ffffff;
  --ai-tools-surface-soft: rgba(244, 247, 255, 0.92);
  --ai-tools-text: #111827;
  --ai-tools-heading: #0f172a;
  --ai-tools-muted: #667085;
  --ai-tools-muted-strong: #475467;
  --ai-tools-border: rgba(105, 129, 210, 0.18);
  --ai-tools-border-strong: rgba(88, 109, 197, 0.34);
  --ai-tools-blue: #2f6df6;
  --ai-tools-indigo: #6057f5;
  --ai-tools-purple: #8b5cf6;
  --ai-tools-accent: #4f46e5;
  --ai-tools-orange: #f59e0b;
  --ai-tools-gradient: linear-gradient(135deg, #2f6df6 0%, #6057f5 52%, #8b5cf6 100%);
  --ai-tools-gradient-soft: linear-gradient(135deg, rgba(47, 109, 246, 0.12), rgba(139, 92, 246, 0.11));
  --ai-tools-warm-soft: linear-gradient(135deg, rgba(245, 158, 11, 0.12), rgba(79, 70, 229, 0.07));
  --ai-tools-shadow: 0 18px 48px rgba(38, 58, 140, 0.11);
  --ai-tools-shadow-soft: 0 10px 28px rgba(38, 58, 140, 0.08);
  --ai-tools-radius: 12px;
  --ai-tools-radius-lg: 18px;
  background:
    radial-gradient(circle at 12% 6%, rgba(83, 125, 255, 0.17), transparent 31%),
    radial-gradient(circle at 84% 2%, rgba(139, 92, 246, 0.14), transparent 28%),
    linear-gradient(180deg, #fbfcff 0%, var(--ai-tools-bg) 38%, var(--ai-tools-bg-deep) 100%);
  color: var(--ai-tools-text);
  font-family: "Space Grotesk", "Noto Sans SC", sans-serif;
  padding: 34px 0 70px;
}

.ai-tools-hub-page *,
.ai-tools-hub-page *::before,
.ai-tools-hub-page *::after {
  box-sizing: border-box;
}

.ai-tools-hub-page a {
  text-underline-offset: 3px;
}

.ai-tools-hub {
  width: min(1440px, calc(100% - 32px));
  margin: 0 auto;
  display: grid;
  gap: 28px;
}

.ai-tools-hero,
.ai-tools-nav,
.ai-tools-index__item,
.ai-tools-index__empty,
.ai-tool-card {
  border: 1px solid var(--ai-tools-border);
  background: var(--ai-tools-surface);
  box-shadow: var(--ai-tools-shadow);
  backdrop-filter: blur(16px);
}

.ai-tools-hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 520px);
  gap: 24px;
  align-items: end;
  padding: 22px;
  border-radius: var(--ai-tools-radius-lg);
  overflow: hidden;
}

.ai-tools-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(135deg, rgba(47, 109, 246, 0.10), transparent 42%),
    linear-gradient(315deg, rgba(139, 92, 246, 0.09), transparent 46%);
}

.ai-tools-hero__copy,
.ai-tools-section,
.ai-tools-section__header,
.ai-tool-card__header,
.ai-tool-card__content,
.ai-tool-card__panel,
.ai-tools-index__item {
  display: grid;
}

.ai-tools-hero__copy {
  gap: 8px;
}

.ai-tools-hero__eyebrow,
.ai-tool-card__eyebrow {
  display: inline-flex;
  width: fit-content;
  color: var(--ai-tools-accent);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  line-height: 1;
  text-transform: uppercase;
}

.ai-tools-hero__title,
.ai-tools-section__title,
.ai-tool-card__title,
.ai-tool-card__panel h4,
.ai-tools-index__item h3 {
  margin: 0;
  color: var(--ai-tools-heading);
}

.ai-tools-hero__title {
  font-size: clamp(2.1rem, 4vw, 4.15rem);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.ai-tools-hero__subtitle {
  margin: 0;
  color: var(--ai-tools-muted-strong);
  font-size: clamp(1.02rem, 1.8vw, 1.28rem);
  font-weight: 750;
}

.ai-tools-hero__lead,
.ai-tools-section__lead,
.ai-tool-card__summary,
.ai-tool-version-line__list p,
.ai-tools-index__item p,
.ai-tools-index__empty,
.ai-tool-card__empty {
  margin: 0;
  color: var(--ai-tools-muted);
  line-height: 1.68;
}

.ai-tools-hero__lead {
  max-width: 820px;
}

.ai-tools-hero__stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(108px, 1fr));
  gap: 10px;
  min-width: min(520px, 100%);
}

.ai-tools-hero__stat {
  display: grid;
  gap: 6px;
  padding: 12px 14px;
  border: 1px solid var(--ai-tools-border);
  border-radius: var(--ai-tools-radius);
  background: rgba(255, 255, 255, 0.68);
  box-shadow: var(--ai-tools-shadow-soft);
}

.ai-tools-hero__stat span {
  color: var(--ai-tools-muted);
  font-size: 0.78rem;
}

.ai-tools-hero__stat strong {
  color: var(--ai-tools-heading);
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.22;
}

.ai-tools-section {
  gap: 18px;
}

.ai-tools-section__header {
  gap: 7px;
  padding: 0 2px;
}

.ai-tools-section__title {
  font-size: clamp(1.22rem, 2vw, 1.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}

.ai-tools-section__lead {
  max-width: 780px;
}

.ai-tools-nav {
  padding: 18px;
  border-radius: var(--ai-tools-radius-lg);
}

.ai-tools-nav__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.ai-tools-nav__item {
  display: grid;
  gap: 9px;
  min-height: 150px;
  padding: 16px;
  border: 1px solid var(--ai-tools-border);
  border-radius: var(--ai-tools-radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(249, 251, 255, 0.90)),
    var(--ai-tools-surface-strong);
  color: var(--ai-tools-text);
  text-decoration: none;
  box-shadow: var(--ai-tools-shadow-soft);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, box-shadow 180ms ease;
}

.ai-tools-nav__item:hover {
  transform: translateY(-2px);
  border-color: rgba(79, 70, 229, 0.34);
  background: var(--ai-tools-gradient-soft);
  box-shadow: 0 12px 26px rgba(79, 70, 229, 0.10);
}

.ai-tools-nav__icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(79, 70, 229, 0.20);
  border-radius: 11px;
  background: var(--ai-tools-gradient);
  box-shadow: 0 10px 22px rgba(79, 70, 229, 0.16);
}

.ai-tools-nav__icon svg {
  width: 19px;
  height: 19px;
  stroke: #ffffff;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ai-tools-nav__label {
  color: var(--ai-tools-heading);
  font-weight: 800;
  line-height: 1.28;
}

.ai-tools-nav__desc {
  color: var(--ai-tools-muted);
  font-size: 0.9rem;
  line-height: 1.58;
}

.ai-tools-featured__list {
  display: grid;
  gap: 28px;
}

.ai-tool-card {
  display: grid;
  gap: 0;
  border-radius: var(--ai-tools-radius-lg);
  overflow: hidden;
}

.ai-tool-card__main {
  display: grid;
  grid-template-columns: minmax(420px, 48%) minmax(0, 1fr);
  min-height: 500px;
}

.ai-tool-visual {
  display: grid;
  place-items: center;
  padding: 16px;
  border-right: 1px solid var(--ai-tools-border);
  background:
    radial-gradient(circle at 16% 8%, rgba(47, 109, 246, 0.10), transparent 34%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.76), rgba(244, 247, 255, 0.84));
}

.ai-tool-visual__image {
  display: block;
  width: 100%;
  height: auto;
}

.ai-tool-visual__image {
  width: min(94%, 980px);
  aspect-ratio: 16 / 10;
  border: 1px solid var(--ai-tools-border);
  border-radius: var(--ai-tools-radius);
  object-fit: contain;
  padding: 12px;
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.74), 0 10px 26px rgba(38, 58, 140, 0.07);
}

.ai-tool-visual__placeholder {
  position: relative;
  display: grid;
  align-content: end;
  gap: 12px;
  min-height: 420px;
  padding: 26px;
  border: 1px solid var(--ai-tools-border);
  border-radius: var(--ai-tools-radius);
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(47, 109, 246, 0.16), rgba(139, 92, 246, 0.14)),
    linear-gradient(180deg, #ffffff 0%, #f4f7ff 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72), 0 10px 26px rgba(38, 58, 140, 0.07);
}

.ai-tool-visual__placeholder::before {
  content: "";
  position: absolute;
  inset: 20px;
  border: 1px solid rgba(79, 70, 229, 0.08);
  border-radius: 14px;
  background:
    linear-gradient(90deg, rgba(79, 70, 229, 0.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(79, 70, 229, 0.06) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(180deg, transparent, #000 28%, #000 70%, transparent);
}

.ai-tool-visual__placeholder span,
.ai-tool-visual__placeholder strong,
.ai-tool-visual__placeholder em {
  position: relative;
  z-index: 1;
}

.ai-tool-visual__placeholder span {
  width: fit-content;
  padding: 7px 10px;
  border: 1px solid rgba(245, 158, 11, 0.24);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  color: #b45309;
  font-size: 0.78rem;
  font-weight: 800;
}

.ai-tool-visual__placeholder strong {
  color: var(--ai-tools-heading);
  font-size: clamp(2rem, 4vw, 3.35rem);
  letter-spacing: -0.05em;
  line-height: 0.98;
}

.ai-tool-visual__placeholder em {
  color: var(--ai-tools-muted-strong);
  font-style: normal;
}

.ai-tool-card__content {
  align-content: start;
  gap: 16px;
  padding: clamp(20px, 3vw, 30px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(250, 252, 255, 0.86));
}

.ai-tool-card__header {
  gap: 8px;
}

.ai-tool-card__title {
  font-size: clamp(1.45rem, 2.4vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.08;
}

.ai-tool-card__run-type,
.ai-tool-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.ai-tool-card__run-type span,
.ai-tool-card__tags li {
  display: inline-flex;
  min-height: 28px;
  align-items: center;
  padding: 7px 10px;
  border: 1px solid rgba(105, 129, 210, 0.13);
  border-radius: 999px;
  background: rgba(244, 247, 255, 0.95);
  color: var(--ai-tools-muted-strong);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1;
}

.ai-tool-card__info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ai-tool-card__panel {
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--ai-tools-border);
  border-radius: var(--ai-tools-radius);
  background: rgba(255, 255, 255, 0.78);
}

.ai-tool-card__panel--wide {
  grid-column: 1 / -1;
}

.ai-tool-card__panel h4 {
  font-size: 0.94rem;
  font-weight: 800;
}

.ai-tool-card__bullets,
.ai-tool-card__tags,
.ai-tool-version-line__list,
.ai-tool-related__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.ai-tool-card__bullets {
  display: grid;
  gap: 9px;
}

.ai-tool-card__bullets li {
  position: relative;
  padding-left: 17px;
  color: var(--ai-tools-muted);
  line-height: 1.58;
}

.ai-tool-card__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: var(--ai-tools-gradient);
}

.ai-tool-card__footer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 14px;
  padding: 18px;
  border-top: 1px solid var(--ai-tools-border);
  background: rgba(250, 252, 255, 0.82);
}

.ai-tool-version-line,
.ai-tool-related {
  display: grid;
  gap: 12px;
  min-width: 0;
  padding: 15px 16px;
  border: 1px solid var(--ai-tools-border);
  border-radius: var(--ai-tools-radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 8px 22px rgba(38, 58, 140, 0.05);
}

.ai-tool-card__section-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--ai-tools-muted-strong);
  font-size: 0.8rem;
  font-weight: 750;
  letter-spacing: 0.02em;
}

.ai-tool-card__section-label strong {
  flex: 0 0 auto;
  min-height: 24px;
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(79, 70, 229, 0.10);
  color: var(--ai-tools-accent);
  font-size: 0.76rem;
  line-height: 1;
}

.ai-tool-version-line__list,
.ai-tool-related__list {
  display: grid;
  gap: 0;
}

.ai-tool-version-line__list li,
.ai-tool-related__list li {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 10px 0;
  border-bottom: 1px dashed rgba(105, 129, 210, 0.24);
}

.ai-tool-version-line__list li:last-child,
.ai-tool-related__list li:last-child {
  border-bottom: 0;
}

.ai-tool-version-line__list time,
.ai-tool-related__list time,
.ai-tools-index__item time {
  color: var(--ai-tools-muted);
  font-size: 0.82rem;
  font-weight: 650;
  line-height: 1.45;
}

.ai-tool-version-line__list strong {
  display: block;
  color: var(--ai-tools-heading);
  margin-bottom: 3px;
}

.ai-tool-related__list a,
.ai-tools-index__item a {
  color: var(--ai-tools-heading);
  font-weight: 650;
  line-height: 1.5;
  text-decoration: none;
}

.ai-tool-related__list a:hover,
.ai-tools-index__item a:hover {
  color: var(--ai-tools-accent);
}

.ai-tool-card__empty,
.ai-tools-index__empty {
  padding: 14px;
  border-radius: var(--ai-tools-radius);
  background: var(--ai-tools-surface-soft);
}

.ai-tools-index__list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.ai-tools-index__item {
  gap: 9px;
  padding: 16px;
  border-radius: var(--ai-tools-radius);
  box-shadow: var(--ai-tools-shadow-soft);
}

.ai-tools-index__item h3 {
  font-size: 1rem;
  line-height: 1.45;
}

@media (max-width: 1080px) {
  .ai-tools-nav__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ai-tool-card__main,
  .ai-tool-card__footer {
    grid-template-columns: 1fr;
  }

  .ai-tool-card__main {
    min-height: 0;
  }

  .ai-tool-visual {
    border-right: 0;
    border-bottom: 1px solid var(--ai-tools-border);
  }

}

@media (max-width: 760px) {
  .ai-tools-hub-page {
    padding: 20px 0 54px;
  }

  .ai-tools-hub {
    width: min(100% - 20px, 680px);
    gap: 22px;
  }

  .ai-tools-hero {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .ai-tools-hero__stats,
  .ai-tools-nav__grid,
  .ai-tool-card__info-grid,
  .ai-tools-index__list {
    grid-template-columns: 1fr;
  }

  .ai-tools-nav {
    padding: 14px;
  }

  .ai-tools-nav__item {
    min-height: 0;
  }

  .ai-tool-card__content,
  .ai-tool-card__footer,
  .ai-tool-visual {
    padding: 14px;
  }

  .ai-tool-visual__image {
    width: 100%;
    padding: 10px;
  }

  .ai-tool-visual__placeholder {
    min-height: 280px;
    padding: 20px;
  }

  .ai-tool-card__panel--wide {
    grid-column: auto;
  }

  .ai-tool-version-line__list li,
  .ai-tool-related__list li {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .ai-tool-card__section-label {
    align-items: flex-start;
    flex-direction: column;
  }

}