/*
  PLAYCODING 찾아가는 인공지능버스 — responsive interactive section
  All selectors are prefixed with ai-bus to reduce collisions with the host site.
*/

.ai-bus-section,
.ai-bus-lightbox {
  --ai-ink: #071c33;
  --ai-ink-soft: #496176;
  --ai-blue: #0b5bd3;
  --ai-blue-deep: #083f96;
  --ai-cyan: #4db9ff;
  --ai-green: #65bb2f;
  --ai-surface: #eef6fb;
  --ai-surface-2: #f7fbff;
  --ai-white: #ffffff;
  --ai-line: rgba(8, 63, 150, 0.14);
  --ai-shadow: 0 28px 80px rgba(15, 55, 94, 0.14);
  --ai-font: Pretendard Variable, Pretendard, "Noto Sans KR", "Apple SD Gothic Neo", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.ai-bus-section *,
.ai-bus-section *::before,
.ai-bus-section *::after,
.ai-bus-lightbox *,
.ai-bus-lightbox *::before,
.ai-bus-lightbox *::after {
  box-sizing: border-box;
}

.ai-bus-section {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  color: var(--ai-ink);
  font-family: var(--ai-font);
  background:
    radial-gradient(circle at 8% 8%, rgba(77, 185, 255, 0.16), transparent 29rem),
    radial-gradient(circle at 92% 24%, rgba(101, 187, 47, 0.10), transparent 26rem),
    linear-gradient(180deg, #edf5fa 0%, #f8fbfe 56%, #ffffff 100%);
}

.ai-bus-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: 0.42;
  background-image:
    linear-gradient(rgba(8, 63, 150, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(8, 63, 150, 0.055) 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: linear-gradient(to bottom, #000 0%, transparent 63%);
}

.ai-bus-section::after {
  content: "";
  position: absolute;
  z-index: -1;
  width: min(62vw, 920px);
  aspect-ratio: 1;
  left: -28vw;
  top: 15%;
  border: 1px solid rgba(11, 91, 211, 0.10);
  border-radius: 50%;
  box-shadow:
    0 0 0 5vw rgba(11, 91, 211, 0.025),
    0 0 0 10vw rgba(11, 91, 211, 0.018);
}

.ai-bus__container {
  width: min(100%, 1536px);
  margin-inline: auto;
  padding: clamp(72px, 8vw, 128px) clamp(20px, 5vw, 76px) clamp(72px, 7vw, 112px);
}

.ai-bus__intro {
  display: grid;
  grid-template-columns: minmax(0, 1.16fr) minmax(360px, 0.84fr);
  align-items: center;
  gap: clamp(42px, 5vw, 86px);
}

.ai-bus__visual {
  position: relative;
  min-width: 0;
  min-height: clamp(390px, 38vw, 570px);
  display: grid;
  place-items: center;
  perspective: 1000px;
}

.ai-bus__visual::before {
  content: "";
  position: absolute;
  inset: 13% 2% 10% 1%;
  border-radius: 52% 48% 46% 54% / 48% 44% 56% 52%;
  background:
    radial-gradient(circle at 58% 44%, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.34) 45%, transparent 72%),
    linear-gradient(135deg, rgba(77, 185, 255, 0.12), rgba(11, 91, 211, 0.04));
  border: 1px solid rgba(255, 255, 255, 0.84);
  box-shadow: inset 0 0 55px rgba(255, 255, 255, 0.6);
  transform: rotate(-3deg);
}

.ai-bus__visual::after {
  content: "";
  position: absolute;
  width: 78%;
  height: 12%;
  left: 8%;
  bottom: 9%;
  border-radius: 50%;
  background: radial-gradient(ellipse, rgba(1, 30, 58, 0.24), rgba(1, 30, 58, 0) 70%);
  filter: blur(7px);
  transform: translate3d(var(--shadow-x, 0), 0, 0);
  transition: transform 420ms cubic-bezier(.2, .7, .2, 1);
}

.ai-bus__picture {
  position: relative;
  z-index: 2;
  display: block;
  width: min(110%, 900px);
  margin-left: -2%;
  transform:
    translate3d(var(--parallax-x, 0), var(--parallax-y, 0), 0)
    rotateY(var(--parallax-r, 0deg));
  transform-origin: 52% 64%;
  transition: transform 520ms cubic-bezier(.16, 1, .3, 1);
  will-change: transform;
  filter: drop-shadow(0 24px 24px rgba(9, 47, 87, 0.16));
}

.ai-bus__picture img {
  display: block;
  width: 100%;
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}

.ai-bus__orbit {
  position: absolute;
  z-index: 3;
  inset: 5% 6% 8% 0;
  pointer-events: none;
}

.ai-bus__orbit::before,
.ai-bus__orbit::after {
  content: "";
  position: absolute;
  border: 1px dashed rgba(11, 91, 211, 0.20);
  border-radius: 50%;
}

.ai-bus__orbit::before {
  width: 44%;
  aspect-ratio: 1;
  top: 2%;
  right: 4%;
  transform: rotate(16deg);
}

.ai-bus__orbit::after {
  width: 20%;
  aspect-ratio: 1;
  left: 2%;
  bottom: 8%;
}

.ai-bus__float-badge {
  position: absolute;
  z-index: 4;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 38px;
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, 0.86);
  border-radius: 999px;
  color: var(--ai-blue-deep);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 12px 34px rgba(23, 66, 106, 0.12);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.ai-bus__float-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--ai-green);
  box-shadow: 0 0 0 5px rgba(101, 187, 47, 0.14);
}

.ai-bus__float-badge--top {
  top: 11%;
  right: 7%;
}

.ai-bus__float-badge--bottom {
  left: 2%;
  bottom: 15%;
}

.ai-bus__float-badge--bottom::before {
  background: var(--ai-cyan);
  box-shadow: 0 0 0 5px rgba(77, 185, 255, 0.14);
}

.ai-bus__copy {
  position: relative;
  z-index: 4;
  max-width: 610px;
}

.ai-bus__eyebrow,
.ai-bus__gallery-kicker {
  margin: 0;
  color: var(--ai-green);
  font-size: 12px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.ai-bus__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.ai-bus__eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ai-green), rgba(101, 187, 47, 0.2));
}

.ai-bus__title {
  margin: 0;
  color: var(--ai-ink);
  font-size: clamp(42px, 5vw, 74px);
  font-weight: 850;
  line-height: 1.12;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.ai-bus__title strong {
  display: inline-block;
  margin-top: 4px;
  color: var(--ai-blue);
  font-weight: 900;
  background: linear-gradient(105deg, var(--ai-blue-deep) 2%, var(--ai-blue) 52%, #179ddc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.ai-bus__description {
  max-width: 570px;
  margin: 26px 0 0;
  color: var(--ai-ink-soft);
  font-size: clamp(16px, 1.15vw, 18px);
  font-weight: 500;
  line-height: 1.85;
  letter-spacing: -0.018em;
}

.ai-bus__features {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
}

.ai-bus__features li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 35px;
  padding: 8px 12px;
  border: 1px solid var(--ai-line);
  border-radius: 999px;
  color: #26455f;
  background: rgba(255, 255, 255, 0.58);
  font-size: 13px;
  font-weight: 750;
  letter-spacing: -0.02em;
  backdrop-filter: blur(7px);
  -webkit-backdrop-filter: blur(7px);
}

.ai-bus__features li::before {
  content: "";
  flex: 0 0 auto;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--ai-cyan);
}

.ai-bus__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 54px;
  padding: 0 21px 0 24px;
  margin-top: 34px;
  border: 1px solid transparent;
  border-radius: 7px;
  color: var(--ai-white);
  background: var(--ai-ink);
  box-shadow: 0 14px 34px rgba(7, 28, 51, 0.18);
  font-size: 14px;
  font-weight: 820;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition:
    transform 220ms ease,
    background-color 220ms ease,
    box-shadow 220ms ease;
}

.ai-bus__cta svg {
  width: 18px;
  height: 18px;
  transition: transform 220ms ease;
}

.ai-bus__cta:hover {
  background: var(--ai-blue-deep);
  box-shadow: 0 18px 40px rgba(8, 63, 150, 0.24);
  transform: translateY(-2px);
}

.ai-bus__cta:hover svg {
  transform: translateX(3px);
}

.ai-bus__cta:focus-visible,
.ai-bus-card:focus-visible,
.ai-bus-lightbox button:focus-visible {
  outline: 3px solid rgba(77, 185, 255, 0.88);
  outline-offset: 4px;
}

.ai-bus__gallery-section {
  position: relative;
  margin-top: clamp(66px, 8vw, 112px);
  padding-top: clamp(32px, 4vw, 54px);
  border-top: 1px solid rgba(8, 63, 150, 0.12);
}

.ai-bus__gallery-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: clamp(22px, 3vw, 34px);
}

.ai-bus__gallery-title {
  margin: 10px 0 0;
  color: var(--ai-ink);
  font-size: clamp(27px, 3vw, 42px);
  font-weight: 850;
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.ai-bus__gallery-guide {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 5px;
  color: #64798b;
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.ai-bus__gallery-guide svg {
  width: 19px;
  height: 19px;
  color: var(--ai-blue);
}

.ai-bus__gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 1.7vw, 26px);
}

.ai-bus-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  width: 100%;
  aspect-ratio: 16 / 10.5;
  padding: 0;
  border: 0;
  border-radius: clamp(16px, 1.8vw, 25px);
  color: var(--ai-white);
  background: #0d253d;
  box-shadow: 0 18px 44px rgba(12, 49, 82, 0.13);
  cursor: zoom-in;
  font: inherit;
  text-align: left;
  transform: translateZ(0);
  transition:
    transform 360ms cubic-bezier(.16, 1, .3, 1),
    box-shadow 360ms ease;
}

.ai-bus-card picture,
.ai-bus-card img {
  display: block;
  width: 100%;
  height: 100%;
}

.ai-bus-card img {
  object-fit: cover;
  transform: scale(1.002);
  transition: transform 650ms cubic-bezier(.16, 1, .3, 1), filter 350ms ease;
}

.ai-bus-card::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(4, 20, 38, 0.02) 20%, rgba(4, 20, 38, 0.09) 52%, rgba(4, 20, 38, 0.84) 100%),
    linear-gradient(120deg, rgba(11, 91, 211, 0.12), transparent 46%);
  transition: opacity 340ms ease;
}

.ai-bus-card::after {
  content: "";
  position: absolute;
  z-index: 2;
  top: 17px;
  right: 17px;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.66);
  border-radius: 50%;
  background:
    linear-gradient(#fff, #fff) center / 13px 1.5px no-repeat,
    linear-gradient(#fff, #fff) center / 1.5px 13px no-repeat,
    rgba(5, 30, 56, 0.32);
  box-shadow: 0 8px 22px rgba(5, 24, 44, 0.16);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition:
    transform 340ms cubic-bezier(.16, 1, .3, 1),
    background-color 220ms ease;
}

.ai-bus-card__number,
.ai-bus-card__content,
.ai-bus-card__hint {
  position: absolute;
  z-index: 3;
}

.ai-bus-card__number {
  top: 19px;
  left: 20px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 12px;
  font-weight: 900;
  letter-spacing: 0.16em;
}

.ai-bus-card__content {
  left: 21px;
  right: 21px;
  bottom: 18px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.ai-bus-card__eyebrow {
  display: block;
  margin-bottom: 5px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ai-bus-card__title {
  display: block;
  font-size: clamp(17px, 1.45vw, 22px);
  font-weight: 820;
  line-height: 1.28;
  letter-spacing: -0.035em;
  text-shadow: 0 2px 13px rgba(0, 0, 0, 0.24);
}

.ai-bus-card__hint {
  right: 21px;
  bottom: 22px;
  opacity: 0;
  color: rgba(255, 255, 255, 0.86);
  font-size: 11px;
  font-weight: 750;
  transform: translateY(5px);
  transition: opacity 260ms ease, transform 260ms ease;
}

.ai-bus-card:hover {
  z-index: 4;
  transform: translateY(-8px) scale(1.012);
  box-shadow: 0 28px 66px rgba(12, 49, 82, 0.22);
}

.ai-bus-card:hover img {
  transform: scale(1.065);
  filter: saturate(1.04) contrast(1.025);
}

.ai-bus-card:hover::before {
  opacity: 0.83;
}

.ai-bus-card:hover::after {
  background-color: rgba(11, 91, 211, 0.66);
  transform: rotate(90deg) scale(1.05);
}

.ai-bus-card:hover .ai-bus-card__hint {
  opacity: 1;
  transform: translateY(0);
}

.ai-bus-card:hover .ai-bus-card__content {
  padding-right: 76px;
}

.ai-bus-card__content {
  transition: padding-right 300ms ease;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity 780ms cubic-bezier(.16, 1, .3, 1),
    transform 780ms cubic-bezier(.16, 1, .3, 1);
}

[data-reveal="visual"] {
  transform: translateY(26px) scale(0.985);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

[data-reveal-delay="1"] {
  transition-delay: 110ms;
}

[data-reveal-delay="2"] {
  transition-delay: 210ms;
}

/* Fullscreen gallery */
.ai-bus-lightbox[hidden] {
  display: none;
}

.ai-bus-lightbox {
  position: fixed;
  z-index: 100000;
  inset: 0;
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: 70px clamp(60px, 7vw, 118px) 34px;
  color: #fff;
  font-family: var(--ai-font);
  opacity: 0;
  visibility: hidden;
  transition: opacity 260ms ease, visibility 260ms ease;
}

.ai-bus-lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.ai-bus-lightbox__backdrop {
  position: absolute;
  inset: 0;
  border: 0;
  background:
    radial-gradient(circle at 50% 35%, rgba(25, 74, 123, 0.34), transparent 45%),
    rgba(2, 12, 24, 0.92);
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  cursor: zoom-out;
}

.ai-bus-lightbox__stage {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 17px;
  width: min(100%, 1540px);
  height: min(86dvh, 980px);
  margin: 0;
  transform: translateY(14px) scale(0.985);
  transition: transform 420ms cubic-bezier(.16, 1, .3, 1);
}

.ai-bus-lightbox.is-open .ai-bus-lightbox__stage {
  transform: translateY(0) scale(1);
}

.ai-bus-lightbox__media-wrap {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.42);
}

.ai-bus-lightbox__media {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 0;
  object-fit: contain;
  opacity: 1;
  transform: scale(1);
  transition: opacity 190ms ease, transform 360ms cubic-bezier(.16, 1, .3, 1);
  user-select: none;
  -webkit-user-drag: none;
}

.ai-bus-lightbox__media.is-switching {
  opacity: 0.16;
  transform: scale(0.986);
}

.ai-bus-lightbox__loading {
  position: absolute;
  z-index: 2;
  width: 34px;
  height: 34px;
  border: 3px solid rgba(255, 255, 255, 0.18);
  border-top-color: #fff;
  border-radius: 50%;
  opacity: 0;
  animation: ai-bus-spin 720ms linear infinite;
  transition: opacity 140ms ease;
}

.ai-bus-lightbox__loading.is-visible {
  opacity: 1;
}

@keyframes ai-bus-spin {
  to { transform: rotate(360deg); }
}

.ai-bus-lightbox__caption {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px;
  min-height: 52px;
  margin: 0;
}

.ai-bus-lightbox__index {
  min-width: 66px;
  color: rgba(255, 255, 255, 0.58);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.12em;
}

.ai-bus-lightbox__index strong {
  color: #fff;
  font-size: 17px;
  font-weight: 850;
}

.ai-bus-lightbox__text {
  min-width: 0;
}

.ai-bus-lightbox__eyebrow {
  display: block;
  margin-bottom: 3px;
  color: var(--ai-cyan);
  font-size: 10px;
  font-weight: 850;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.ai-bus-lightbox__title {
  display: block;
  overflow: hidden;
  color: #fff;
  font-size: clamp(16px, 1.7vw, 23px);
  font-weight: 780;
  letter-spacing: -0.028em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ai-bus-lightbox__help {
  color: rgba(255, 255, 255, 0.48);
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}

.ai-bus-lightbox__close,
.ai-bus-lightbox__nav {
  position: absolute;
  z-index: 4;
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: 50%;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  transition:
    transform 220ms ease,
    background-color 220ms ease,
    border-color 220ms ease;
}

.ai-bus-lightbox__close:hover,
.ai-bus-lightbox__nav:hover {
  border-color: rgba(255, 255, 255, 0.42);
  background: rgba(255, 255, 255, 0.17);
  transform: scale(1.06);
}

.ai-bus-lightbox__close svg,
.ai-bus-lightbox__nav svg {
  width: 23px;
  height: 23px;
}

.ai-bus-lightbox__close {
  top: 22px;
  right: 24px;
  width: 48px;
  height: 48px;
}

.ai-bus-lightbox__nav {
  top: 50%;
  width: 54px;
  height: 54px;
  transform: translateY(-50%);
}

.ai-bus-lightbox__nav:hover {
  transform: translateY(-50%) scale(1.06);
}

.ai-bus-lightbox__nav--prev {
  left: clamp(14px, 2.6vw, 44px);
}

.ai-bus-lightbox__nav--next {
  right: clamp(14px, 2.6vw, 44px);
}

.ai-bus-lightbox__dots {
  display: none;
}

body.ai-bus-no-scroll {
  overflow: hidden;
  overscroll-behavior: none;
}

@media (max-width: 1120px) {
  .ai-bus__intro {
    grid-template-columns: minmax(0, 1fr) minmax(330px, 0.86fr);
    gap: 38px;
  }

  .ai-bus__picture {
    width: 110%;
    margin-left: -2%;
  }

  .ai-bus__float-badge--top {
    right: 2%;
  }
}

@media (max-width: 920px) {
  .ai-bus__container {
    padding-top: 76px;
  }

  .ai-bus__intro {
    grid-template-columns: minmax(0, 1fr);
    gap: 34px;
  }

  .ai-bus__copy {
    order: 1;
    max-width: 720px;
  }

  .ai-bus__visual {
    order: 2;
    min-height: clamp(320px, 62vw, 520px);
  }

  .ai-bus__picture {
    width: min(104%, 850px);
    margin-left: 0;
  }

  .ai-bus__visual::before {
    inset: 8% 4% 7%;
  }

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

  .ai-bus-card:last-child {
    grid-column: 1 / -1;
    aspect-ratio: 2 / 0.77;
  }

  .ai-bus-lightbox {
    padding-inline: 72px;
  }
}

@media (max-width: 680px) {
  .ai-bus-section::before {
    background-size: 28px 28px;
  }

  .ai-bus__container {
    padding: 62px 18px 72px;
  }

  .ai-bus__eyebrow {
    margin-bottom: 16px;
  }

  .ai-bus__title {
    font-size: clamp(38px, 11.6vw, 54px);
    line-height: 1.13;
  }

  .ai-bus__description {
    margin-top: 20px;
    font-size: 15px;
    line-height: 1.76;
  }

  .ai-bus__features {
    gap: 7px;
    margin-top: 22px;
  }

  .ai-bus__features li {
    min-height: 32px;
    padding: 7px 10px;
    font-size: 12px;
  }

  .ai-bus__cta {
    width: 100%;
    min-height: 53px;
    margin-top: 28px;
  }

  .ai-bus__visual {
    min-height: 265px;
    margin-inline: -10px;
  }

  .ai-bus__picture {
    width: 104%;
    margin-left: -2%;
  }

  .ai-bus__float-badge {
    min-height: 31px;
    padding: 7px 10px;
    font-size: 9px;
  }

  .ai-bus__float-badge--top {
    top: 5%;
    right: 0;
  }

  .ai-bus__float-badge--bottom {
    left: 0;
    bottom: 11%;
  }

  .ai-bus__gallery-section {
    margin-top: 62px;
    padding-top: 30px;
  }

  .ai-bus__gallery-heading {
    display: block;
    margin-bottom: 22px;
  }

  .ai-bus__gallery-guide {
    margin-top: 12px;
    white-space: normal;
  }

  .ai-bus__gallery {
    display: flex;
    gap: 13px;
    overflow-x: auto;
    margin-inline: -18px;
    padding: 4px 18px 22px;
    scroll-padding-inline: 18px;
    scroll-snap-type: x mandatory;
    overscroll-behavior-inline: contain;
    scrollbar-width: none;
  }

  .ai-bus__gallery::-webkit-scrollbar {
    display: none;
  }

  .ai-bus-card,
  .ai-bus-card:last-child {
    flex: 0 0 min(84vw, 410px);
    grid-column: auto;
    aspect-ratio: 16 / 10.8;
    scroll-snap-align: center;
  }

  .ai-bus-card:hover {
    transform: none;
  }

  .ai-bus-card__hint {
    display: none;
  }

  .ai-bus-lightbox {
    padding: 68px 14px 16px;
  }

  .ai-bus-lightbox__stage {
    width: 100%;
    height: min(82dvh, 760px);
    gap: 12px;
  }

  .ai-bus-lightbox__media-wrap {
    border-radius: 12px;
  }

  .ai-bus-lightbox__caption {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 12px;
    min-height: 54px;
    padding-inline: 2px;
  }

  .ai-bus-lightbox__help {
    display: none;
  }

  .ai-bus-lightbox__index {
    min-width: 52px;
  }

  .ai-bus-lightbox__close {
    top: 12px;
    right: 14px;
    width: 44px;
    height: 44px;
  }

  .ai-bus-lightbox__nav {
    top: auto;
    bottom: 82px;
    width: 46px;
    height: 46px;
    transform: none;
  }

  .ai-bus-lightbox__nav:hover {
    transform: scale(1.04);
  }

  .ai-bus-lightbox__nav--prev {
    left: 22px;
  }

  .ai-bus-lightbox__nav--next {
    right: 22px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ai-bus-section *,
  .ai-bus-section *::before,
  .ai-bus-section *::after,
  .ai-bus-lightbox *,
  .ai-bus-lightbox *::before,
  .ai-bus-lightbox *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Clear enlargement affordance while keeping all copy as sharp HTML text. */
.ai-bus__guide-plus {
  display: inline-grid;
  width: 27px;
  height: 27px;
  margin-right: 8px;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--ai-blue-deep);
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
}

.ai-bus-card__hint {
  gap: 6px;
}

.ai-bus-card__hint b {
  font-size: 18px;
  font-weight: 500;
  line-height: 1;
}