/* Hallmark · macrostructure: Catalogue · tone: technical · anchor hue: steel blue
 * pre-emit critique: P5 H5 E5 S5 R5 V4 · theme: SinoOil locked design system
 * audience: overseas oil-mill buyers · use: choose verified equipment · nav: N11 · footer: Ft3
 * F6 knobs: ratio=4/3 landscape · density=3-up · action=View machine
 * contrast: pass (40–41) · slop: pass (42–45) · honest: pass (46) · chrome: pass (47)
 * tokens: pass (48) · responsive: pass (49) · icons: pass (30) · mobile: pass (34,49,50–57)
 */

html,
body {
  overflow-x: clip;
}

.approved-catalog {
  background: var(--catalog-paper);
  color: var(--catalog-ink);
  font-family: var(--catalog-font-body);
}

.approved-catalog *,
.approved-catalog *::before,
.approved-catalog *::after {
  box-sizing: border-box;
}

.catalog-container {
  width: min(100% - 2rem, 75rem);
  margin-inline: auto;
}

.catalog-hero {
  padding-block: clamp(var(--catalog-space-2xl), 8vw, var(--catalog-space-3xl));
  border-bottom: var(--catalog-rule-hair) solid var(--catalog-rule);
}

.catalog-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--catalog-space-xl);
  align-items: end;
}

.catalog-hero h1 {
  max-width: 13ch;
  margin: 0;
  color: var(--catalog-ink);
  font-family: var(--catalog-font-display);
  font-size: var(--catalog-text-display);
  font-style: normal;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.02;
  overflow-wrap: anywhere;
}

.catalog-hero__lede {
  max-width: 62ch;
  margin: var(--catalog-space-lg) 0 0;
  color: var(--catalog-muted);
  font-size: clamp(var(--catalog-text-base), 1.4vw, 1.15rem);
  line-height: 1.65;
}

.catalog-scope {
  margin: 0;
  border-top: var(--catalog-rule-hair) solid var(--catalog-rule);
}

.catalog-scope__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--catalog-space-md);
  padding-block: var(--catalog-space-sm);
  border-bottom: var(--catalog-rule-hair) solid var(--catalog-rule);
}

.catalog-scope dt,
.catalog-scope dd {
  margin: 0;
}

.catalog-scope dt {
  color: var(--catalog-muted);
}

.catalog-scope dd {
  color: var(--catalog-blue);
  font-family: var(--catalog-font-display);
  font-variant-numeric: tabular-nums;
  font-weight: 800;
}

.catalog-jump {
  display: flex;
  gap: var(--catalog-space-xs);
  padding-block: var(--catalog-space-lg);
  overflow-x: auto;
  border-bottom: var(--catalog-rule-hair) solid var(--catalog-rule);
  scrollbar-width: thin;
}

.catalog-jump a {
  flex: 0 0 auto;
  min-height: 2.75rem;
  display: inline-flex;
  align-items: center;
  padding-inline: var(--catalog-space-md);
  border: var(--catalog-rule-hair) solid var(--catalog-rule);
  border-radius: var(--catalog-radius-sm);
  background: var(--catalog-surface);
  color: var(--catalog-blue-dark);
  font-size: var(--catalog-text-sm);
  font-weight: 700;
  text-decoration: none;
  white-space: nowrap;
  transition: border-color var(--catalog-dur-short) var(--catalog-ease-out), color var(--catalog-dur-short) var(--catalog-ease-out), transform var(--catalog-dur-micro) var(--catalog-ease-out);
}

.catalog-jump a:hover {
  border-color: var(--catalog-blue);
  color: var(--catalog-blue);
}

.catalog-jump a:active {
  transform: translateY(1px);
}

.catalog-jump a:focus-visible,
.machine-card a:focus-visible,
.catalog-cta a:focus-visible {
  outline: 2px solid var(--catalog-focus);
  outline-offset: 3px;
}

.catalog-section {
  padding-block: clamp(var(--catalog-space-2xl), 7vw, var(--catalog-space-3xl));
  border-bottom: var(--catalog-rule-hair) solid var(--catalog-rule);
}

.catalog-section:nth-of-type(even) {
  background: var(--catalog-paper-2);
}

.catalog-section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--catalog-space-sm);
  margin-bottom: var(--catalog-space-xl);
}

.catalog-section__head h2 {
  min-width: 0;
  margin: 0;
  color: var(--catalog-ink);
  font-family: var(--catalog-font-display);
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  font-style: normal;
  font-weight: 800;
  letter-spacing: -0.035em;
  line-height: 1.08;
  overflow-wrap: anywhere;
}

.catalog-section__head p {
  max-width: 62ch;
  margin: 0;
  color: var(--catalog-muted);
  line-height: 1.6;
}

.catalog-count {
  color: var(--catalog-blue);
  font-size: var(--catalog-text-sm);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.machine-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--catalog-space-xl) var(--catalog-space-lg);
}

.machine-card {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  gap: var(--catalog-space-md);
}

.machine-card__media {
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border: var(--catalog-rule-hair) solid var(--catalog-rule);
  border-radius: var(--catalog-radius-md);
  background: var(--catalog-surface);
}

.machine-card__media img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: contain;
  transition: transform var(--catalog-dur-short) var(--catalog-ease-out);
}

.machine-card__media:hover img,
.machine-card__media:focus-visible img {
  transform: scale(1.018);
}

.machine-card__body {
  display: grid;
  align-content: start;
  gap: var(--catalog-space-xs);
}

.machine-card__model {
  margin: 0;
  color: var(--catalog-gold);
  font-size: var(--catalog-text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.machine-card h3 {
  min-width: 0;
  margin: 0;
  color: var(--catalog-ink);
  font-family: var(--catalog-font-display);
  font-size: var(--catalog-text-md);
  font-style: normal;
  font-weight: 800;
  line-height: 1.22;
  overflow-wrap: anywhere;
}

.machine-card__use {
  margin: 0;
  color: var(--catalog-muted);
  line-height: 1.55;
}

.machine-card__link,
.catalog-cta a {
  width: fit-content;
  color: var(--catalog-blue);
  font-weight: 800;
  text-decoration: underline;
  text-decoration-color: var(--catalog-rule);
  text-underline-offset: 0.3em;
  white-space: nowrap;
  transition: color var(--catalog-dur-short) var(--catalog-ease-out), text-decoration-color var(--catalog-dur-short) var(--catalog-ease-out);
}

.machine-card__link:hover,
.catalog-cta a:hover {
  color: var(--catalog-blue-dark);
  text-decoration-color: currentColor;
}

.catalog-cta {
  padding-block: clamp(var(--catalog-space-xl), 6vw, var(--catalog-space-2xl));
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--catalog-space-lg);
  align-items: end;
}

.catalog-cta h2 {
  max-width: 18ch;
  margin: 0;
  font-family: var(--catalog-font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.8rem);
  font-style: normal;
  font-weight: 800;
  line-height: 1.1;
}

.catalog-cta p {
  max-width: 60ch;
  margin: var(--catalog-space-sm) 0 0;
  color: var(--catalog-muted);
  line-height: 1.6;
}

@media (min-width: 40rem) {
  .machine-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .catalog-cta {
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 0.5fr);
  }
}

@media (min-width: 60rem) {
  .catalog-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(18rem, 5fr);
  }
  .catalog-section__head {
    grid-template-columns: minmax(0, 1.4fr) minmax(18rem, 0.6fr);
    align-items: end;
  }
  .machine-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (pointer: coarse) {
  .catalog-jump a,
  .machine-card__link,
  .catalog-cta a {
    min-height: 2.75rem;
    display: inline-flex;
    align-items: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .approved-catalog *,
  .approved-catalog *::before,
  .approved-catalog *::after {
    animation-duration: 150ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 150ms !important;
  }
}