.about-intro__grid {
  display: grid;
  grid-template-columns: 400px 1fr;
  gap: 96px;
  align-items: start;
}
.about-intro__lead {
  position: sticky;
  top: 108px;
  padding-top: 8px;
  align-self: start;
}
.about-intro__body {
  position: sticky;
  top: 108px;
  align-self: start;
}
.about-intro__lead .section-title { text-align: left; margin: 0; }
.about-intro__tagline {
  margin: 24px 0 36px;
  max-width: 32ch;
  font-size: var(--body);
  line-height: 1.6;
  color: var(--text-soft);
}
.about-intro__tagline strong { color: var(--primary); font-weight: var(--fw-semibold); }
.about-intro__rail { max-width: 320px; }

.about-rail__viewport {
  position: relative;
  height: 280px;
  overflow: hidden;
  -webkit-mask: linear-gradient(180deg, transparent 0, #000 18%, #000 82%, transparent 100%);
          mask: linear-gradient(180deg, transparent 0, #000 18%, #000 82%, transparent 100%);
}
.about-rail__track {
  position: absolute;
  top: 0; left: 0; right: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  --rail-item-h: 72px;
  --rail-gap: 12px;
  --rail-half: 8;
  animation: aboutRailScroll 22s linear infinite;
  will-change: transform;
}
.about-rail__track:hover { animation-play-state: paused; }
@media (prefers-reduced-motion: reduce) {
  .about-rail__track { animation: none; }
}
.about-rail__item {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  height: 72px;
  color: var(--ink);
  text-decoration: none;
  transition: transform var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition);
}
.about-rail__item:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(var(--lift-card));
  box-shadow: var(--shadow-sm);
}
.about-rail__item i {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px;
  flex-shrink: 0;
  border-radius: var(--r-sm);
  background: var(--primary-soft);
  color: var(--primary);
  font-size: var(--text-xl);
  transition: background var(--transition), color var(--transition);
}
.about-rail__item:hover i { background: var(--primary); color: #fff; }
.about-rail__item strong {
  display: block;
  font-size: var(--body-sm);
  font-weight: var(--fw-semibold);
  color: var(--ink);
  letter-spacing: var(--tracking-normal);
}
.about-rail__item span {
  font-size: var(--text-xs);
  color: var(--text-soft);
}
@keyframes aboutRailScroll {
  from { transform: translate3d(0, 0, 0); }
  to   { transform: translate3d(0, calc(-1 * (var(--rail-item-h) + var(--rail-gap)) * var(--rail-half)), 0); }
}

.about-intro__text > p:first-child {
  font-size: 22px;
  font-weight: var(--fw-semibold);
  color: var(--ink);
  line-height: 1.5;
  letter-spacing: var(--tracking-tight);
  margin: 0 0 34px;
}
.about-intro__text > p {
  font-size: var(--lead);
  line-height: 1.8;
  color: var(--text);
  margin: 0 0 26px;
}
.about-intro__text > p:last-child { margin-bottom: 0; }

.mv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.mv-card {
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  transition: transform var(--transition-slow),
              box-shadow var(--transition-slow),
              border-color var(--transition);
}
.mv-card:hover {
  transform: translateY(var(--lift-card));
  box-shadow: var(--shadow-md), 0 0 0 1px rgba(var(--primary-rgb), 0.18);
  border-color: transparent;
}
.mv-card__media {
  aspect-ratio: 2 / 1;
  overflow: hidden;
  background: var(--bg-soft);
}
.mv-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .5s cubic-bezier(.25, 1, .35, 1);
}
.mv-card:hover .mv-card__media img { transform: scale(1.05); }
.mv-card__body { padding: 28px 30px 32px; }
.mv-card__kicker {
  display: inline-flex;
  align-items: center;
  padding: 6px 13px;
  border-radius: var(--r-pill);
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-rgb), 0.16);
  font-size: var(--text-2xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.mv-card:nth-child(2) .mv-card__kicker {
  background: var(--accent-soft);
  color: var(--accent-deep);
  border-color: rgba(var(--accent-rgb), 0.22);
}
.mv-card h3 {
  font-size: 22px;
  font-weight: var(--fw-semibold);
  color: var(--ink);
  margin: 0 0 14px;
  letter-spacing: var(--tracking-tight);
  line-height: 1.3;
}
.mv-card p {
  font-size: var(--body);
  line-height: var(--lh-relaxed);
  color: var(--text-soft);
  margin: 0;
}

@media (max-width: 1024px) {
  .about-intro__grid { grid-template-columns: 320px 1fr; gap: 56px; }
  .mv-grid { grid-template-columns: 1fr; }
}
@media (max-width: 980px) {
  .about-intro__grid { grid-template-columns: 1fr; gap: 28px; }
  .about-intro__lead,
  .about-intro__body { position: static; }
  .about-intro__rail { display: none; }                
  .about-intro__tagline { max-width: none; margin-bottom: 24px; }
  .about-intro__text > p:first-child { font-size: 18px; margin-bottom: 22px; }
}
@media (max-width: 560px) {
  .mv-card__body { padding: 22px 22px 26px; }
  .mv-card h3 { font-size: var(--text-xl); }
  .mv-card__kicker { padding: 5px 11px; font-size: 10px; margin-bottom: 12px; }
  .about-intro__text > p { font-size: var(--body); line-height: 1.7; }
  .about-intro__text > p:first-child { font-size: 17px; margin-bottom: 18px; }
}