/* Home page only — oversized statement hero */

.hero { padding-top: clamp(36px, 5vw, 72px); }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 0;
  margin: 0 0 clamp(28px, 4vw, 52px);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero-meta span + span::before {
  content: "·";
  margin: 0 14px;
  color: var(--accent);
}

.hero-title {
  margin: 0;
  max-width: 20ch;
  font-size: clamp(2.9rem, 8.4vw, 7rem);
  line-height: 0.96;
  letter-spacing: -0.045em;
  font-weight: 600;
}

.hero-title em {
  display: block;
  font-style: normal;
  color: var(--muted);
}

.hero-foot {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: clamp(24px, 4vw, 64px);
  align-items: end;
  margin-top: clamp(32px, 5vw, 56px);
  padding-bottom: clamp(28px, 4vw, 48px);
}

.hero-lede {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  color: var(--muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
  justify-content: flex-end;
}

.hero-media { margin: 0; }

/* hero frame stays at the original 16:9 depth: the wide photo is cropped from the centre */
.hero-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center 52%;
  border-radius: 0;
  max-height: 72vh;
}

.hero-caption {
  margin: 12px auto 0;
  max-width: var(--maxw);
  padding-inline: var(--gutter);
  font-size: 12px;
  letter-spacing: 0.02em;
  color: var(--muted);
}

@media (max-width: 820px) {
  .hero-foot { grid-template-columns: minmax(0, 1fr); align-items: start; }
  .hero-actions { justify-content: flex-start; }
}

/* Chinese hero: square glyphs need a calmer scale and looser tracking */
html[lang="zh-CN"] .hero-title {
  max-width: 100%;
  font-size: clamp(2.4rem, 6.2vw, 5.2rem);
  letter-spacing: -0.01em;
  line-height: 1.12;
}

html[lang="zh-CN"] .hero-title em { letter-spacing: -0.01em; }

html[lang="zh-CN"] .hero-lede { font-size: clamp(0.98rem, 1.1vw, 1.06rem); line-height: 1.85; }

html[lang="zh-CN"] .hero-meta { letter-spacing: 0.1em; }

/* homepage keeps slightly larger section headings than inner pages */
.hero + .section .heading-sub,
.section-head .heading-sub {
  font-size: clamp(1.4rem, 2.2vw, 1.9rem);
}

html[lang="zh-CN"] .section-head .heading-sub {
  font-size: clamp(1.3rem, 2.1vw, 1.8rem);
  line-height: 1.45;
}

/* long category line under "应用场景": set it light, not bold */
.h2-list.heading-sub {
  font-size: clamp(1.08rem, 1.6vw, 1.32rem);
  font-weight: 300;
  letter-spacing: 0.015em;
  line-height: 1.95;
  color: var(--ink);
}

@media (max-width: 700px) {
  .h2-list.heading-sub {
    font-size: 1rem;
    line-height: 1.9;
  }
}