.product-catalog {
  --catalog-ink: #14253a;
  --catalog-muted: #475b70;
  --catalog-line: #d6e0e9;
  --catalog-accent: #155fa0;
  color: var(--catalog-ink);
  background: #f4f7fa;
  line-height: 1.65;
}

.catalog-shell {
  width: min(100% - 48px, 1120px);
  margin-inline: auto;
}

.catalog-hero {
  color: #fff;
  background: radial-gradient(ellipse at 85% 12%, #234b6c, transparent 52%), #14253a;
}

.catalog-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  padding-top: 24px;
  color: #cedbe7;
  font-size: 0.875rem;
}

.catalog-breadcrumb a:hover { text-decoration: underline; }
.catalog-breadcrumb [aria-current] { color: #fff; }

.catalog-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  align-items: center;
  gap: clamp(30px, 7vw, 104px);
  padding-block: clamp(38px, 5vw, 72px) 36px;
}

.catalog-hero h1 {
  font-size: clamp(2.5rem, 5.2vw, 4.35rem);
  font-weight: 750;
  line-height: 1.13;
  letter-spacing: -0.045em;
}

.catalog-hero-copy > p {
  max-width: 28em;
  margin-top: 20px;
  color: #dae5ef;
  font-size: clamp(1rem, 1.7vw, 1.2rem);
  line-height: 1.8;
}

.catalog-hero-copy .catalog-button { margin-top: 28px; }

.catalog-hero-figure {
  padding: 18px 22px 12px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 18px 36px rgb(8 23 40 / 27%);
  color: var(--catalog-muted);
}

.catalog-hero-figure img {
  width: 100%;
  height: clamp(158px, 22vw, 268px);
  object-fit: contain;
}

.catalog-hero-figure figcaption {
  margin-top: 6px;
  padding-top: 8px;
  border-top: 1px solid var(--catalog-line);
  font-size: 0.8rem;
}

.catalog-flow {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  padding-bottom: 25px;
}

.catalog-flow li {
  position: relative;
  display: grid;
  align-content: start;
  gap: 2px;
  padding: 15px 20px 0 0;
  border-top: 1px solid #6a879f;
}

.catalog-flow li:not(:last-child)::after {
  position: absolute;
  top: -6px;
  right: 15px;
  width: 10px;
  height: 10px;
  transform: rotate(45deg);
  border-top: 1px solid #a1b8cd;
  border-right: 1px solid #a1b8cd;
  content: '';
}

.catalog-flow strong { color: #fff; font-size: 1.05rem; }
.catalog-flow span { color: #cedbe7; font-size: 0.875rem; }

.catalog-content { padding-block: 36px 44px; }
.catalog-index, .catalog-item { scroll-margin-top: 96px; }

.catalog-index {
  padding: 22px 24px 24px;
  background: #fff;
  border: 1px solid var(--catalog-line);
  border-radius: 12px;
}

.catalog-index h2 {
  margin-bottom: 10px;
  font-size: 1.1rem;
  font-weight: 700;
}

.catalog-index ul {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.catalog-index a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  height: 100%;
  min-height: 44px;
  padding: 8px 12px;
  border-radius: 6px;
  background: #edf3f8;
  color: #254764;
  font-weight: 600;
  font-size: 0.92rem;
}

.catalog-index a:hover { background: #dceaf5; color: #133d65; }
.catalog-index a span { color: var(--catalog-accent); }

.catalog-item {
  display: grid;
  align-items: center;
  gap: clamp(24px, 6vw, 72px);
  margin-top: 22px;
  padding: clamp(22px, 4vw, 48px);
}

.catalog-item-software {
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  border-bottom: 1px solid var(--catalog-line);
  align-items: start;
}

.catalog-item-photo {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  background: #fff;
  border: 1px solid var(--catalog-line);
  border-radius: 12px;
}

.catalog-photo-leading figure { grid-column: 1; grid-row: 1; }
.catalog-photo-leading .catalog-item-detail { grid-column: 2; grid-row: 1; }

.catalog-category {
  margin-bottom: 8px;
  color: var(--catalog-accent);
  font-size: 0.875rem;
  font-weight: 700;
}

.catalog-item h2, .catalog-contact h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
  font-weight: 700;
  line-height: 1.32;
}

.catalog-model {
  margin-top: 12px;
  color: #293f56;
  font-size: 0.93rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.catalog-model span {
  display: inline-block;
  margin-right: 5px;
  padding: 1px 7px;
  border-radius: 4px;
  background: #e7eff6;
  color: #39546b;
  font-size: 0.76rem;
  font-weight: 600;
}

.catalog-item-detail > p:not([class]) { color: var(--catalog-muted); }
.catalog-item-detail .catalog-model + p { margin-top: 16px; }

.catalog-specs { margin-top: 14px; }
.catalog-specs > div {
  display: grid;
  grid-template-columns: 5.5em minmax(0, 1fr);
  gap: 8px;
  padding-block: 8px;
  border-top: 1px solid var(--catalog-line);
  font-size: 0.9rem;
}

.catalog-specs dt { font-weight: 700; }
.catalog-specs dd { color: var(--catalog-muted); overflow-wrap: anywhere; }

.catalog-product-image { overflow: hidden; border: 1px solid #e5ebf1; border-radius: 8px; }
.catalog-product-image img { width: 100%; height: auto; }
.catalog-console-image img { max-height: 286px; object-fit: contain; }

.catalog-contact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 38px;
  padding: clamp(24px, 4vw, 42px);
  border-radius: 12px;
  background: #142e47;
  color: #fff;
}

.catalog-contact p { margin-top: 7px; color: #d6e1ed; }
.catalog-actions { display: flex; flex-wrap: wrap; gap: 10px; flex-shrink: 0; }

.catalog-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 44px;
  padding: 8px 17px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.93rem;
}

.catalog-button-light { background: #fff; color: #183854; }
.catalog-button-light:hover { background: #dbeafa; }
.catalog-button-outline { border-color: #9ab2c9; color: #fff; }
.catalog-button-outline:hover { background: #2b4b66; }
.catalog-return { margin-top: 20px; color: var(--catalog-accent); font-weight: 650; }
.catalog-return a { display: inline-flex; align-items: center; gap: 7px; min-height: 44px; }
.catalog-return a:hover { text-decoration: underline; }
.product-catalog a:focus-visible { outline: 2px solid currentColor; outline-offset: 3px; }
.catalog-button-light:focus-visible { outline-color: #fff !important; }

@media (max-width: 820px) {
  .catalog-contact { align-items: flex-start; flex-direction: column; }
}

@media (max-width: 700px) {
  .catalog-shell { width: calc(100% - 32px); }
  .catalog-hero-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; padding-block: 28px; }
  .catalog-hero-copy > p { margin-top: 12px; }
  .catalog-hero-copy .catalog-button { margin-top: 18px; }
  .catalog-hero-figure { padding: 10px 12px 8px; }
  .catalog-flow { padding-bottom: 18px; }
  .catalog-flow li { padding: 12px 10px 0 0; }
  .catalog-flow strong { font-size: 0.95rem; }
  .catalog-flow span { font-size: 0.77rem; }
  .catalog-content { padding-top: 24px; }
  .catalog-index { padding: 16px; }
  .catalog-index ul { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .catalog-index a { padding: 8px; font-size: 0.83rem; }
  .catalog-item { grid-template-columns: minmax(0, 1fr); gap: 16px; margin-top: 16px; }
  .catalog-photo-leading .catalog-item-detail, .catalog-photo-leading figure { grid-column: auto; grid-row: auto; }
}