.landing-hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, .8fr);
  gap: 70px;
  align-items: center;
  min-height: 650px;
  padding: 78px max(24px, calc((100vw - var(--max)) / 2));
  background: linear-gradient(115deg, #f8fafb 0 64%, #eef3f4 64%);
}

.landing-hero h1 {
  max-width: 780px;
  font-size: clamp(3rem, 5.7vw, 5.8rem);
}

.landing-hero-media {
  background: var(--ink);
  padding: 22px;
  box-shadow: 26px 26px 0 rgba(0, 99, 125, .12);
}

.landing-hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: brightness(1.12) contrast(1.04);
}

.landing-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--blue);
  color: #fff;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
}

.landing-facts div {
  padding: 24px 26px;
  border-right: 1px solid rgba(255, 255, 255, .24);
}

.landing-facts div:first-child { border-left: 1px solid rgba(255, 255, 255, .24); }
.landing-facts strong { display: block; font-size: 1.05rem; }
.landing-facts span { color: #c8e8ee; font-size: .84rem; }

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.benefit-card {
  min-height: 260px;
  padding: 32px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.benefit-card span { color: var(--blue); font-family: monospace; font-weight: 800; }
.benefit-card h3 { margin: 42px 0 14px; font-size: 1.35rem; }
.benefit-card p { margin: 0; color: var(--muted); }

.series-applications {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
  align-items: center;
  background: var(--paper);
}

.series-applications img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.check-list { list-style: none; padding: 0; margin: 30px 0 0; }
.check-list li { padding: 15px 0; border-top: 1px solid #c8d1d5; font-weight: 700; }
.check-list li::before { content: "✓"; color: var(--blue); margin-right: 11px; }

.series-materials {
  background: var(--ink);
  color: #fff;
}

.series-materials .section-heading > p:last-child { color: #b7c0c4; }

.faq-list { max-width: 930px; margin-left: auto; }
.faq-list details { border-top: 1px solid #bcc7cc; padding: 22px 0; }
.faq-list details:last-child { border-bottom: 1px solid #bcc7cc; }
.faq-list summary { cursor: pointer; font-size: 1.1rem; font-weight: 800; }
.faq-list p { max-width: 780px; color: var(--muted); }

.landing-back {
  text-decoration: none;
  color: var(--blue);
  font-weight: 800;
}

.related-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.related-links a {
  min-height: 135px;
  padding: 26px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.related-links a span { display: block; margin-top: 8px; color: var(--blue); }

.location-panel {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 70px;
  align-items: center;
  background: var(--paper);
}

.location-mark {
  padding: 52px 36px;
  background: var(--ink);
  color: #fff;
  font-size: clamp(2.2rem, 5vw, 4.8rem);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -.05em;
  box-shadow: 24px 24px 0 rgba(0, 99, 125, .14);
}

.location-mark span {
  display: block;
  margin-top: 20px;
  color: #79c7d8;
  font-size: .95rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

@media (max-width: 920px) {
  .landing-hero { grid-template-columns: 1fr; min-height: auto; }
  .landing-hero-media { max-width: 620px; }
  .landing-facts { grid-template-columns: 1fr; }
  .landing-facts div, .landing-facts div:first-child { border-left: 0; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .24); }
    .series-applications { grid-template-columns: 1fr; gap: 42px; }
  .location-panel { grid-template-columns: 1fr; gap: 42px; }
}

@media (max-width: 620px) {
  .landing-hero { padding-top: 58px; padding-bottom: 70px; gap: 45px; }
  .landing-hero h1 { font-size: 3rem; }
  .landing-hero-media { padding: 14px; box-shadow: 14px 14px 0 rgba(0, 99, 125, .12); }
  .benefit-grid { grid-template-columns: 1fr; }
  .related-links { grid-template-columns: 1fr; }
}