/* ============================================================
   BREAKTHROUGHS — 81 keywords as editorial minimal index
   + marquee strip (cinematic motion of keywords)
   ============================================================ */
.breakthroughs {
  background: var(--color-canvas);
  color: var(--color-ink);
}
.breakthroughs__head {
  display: flex; justify-content: space-between; align-items: flex-end;
  gap: var(--sp-lg);
  margin-bottom: var(--sp-xl);
  flex-wrap: wrap;
}
.breakthroughs__title {
  color: var(--color-ink);
  font-family: var(--font-ferrari);
  font-size: clamp(36px, 6vw, 56px); font-weight: 500; line-height: 1.1; letter-spacing: -1.12px;
  max-width: 16ch;
}
.breakthroughs__title .red { color: var(--color-primary); }
.breakthroughs__lede {
  color: var(--color-body);
  font-family: var(--font-ferrari);
  font-size: 14px; line-height: 1.5;
  max-width: 38ch;
}

.breakthroughs__bar {
  display: flex; align-items: center; gap: var(--sp-md);
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  padding: var(--sp-sm) 0;
  margin-bottom: var(--sp-lg);
}
.breakthroughs__count {
  color: var(--color-ink);
  font-family: var(--font-ferrari);
  font-size: 11px; font-weight: 600; letter-spacing: 1.1px; text-transform: uppercase;
  display: flex; align-items: center; gap: var(--sp-xxs);
}
.breakthroughs__count .n { color: var(--color-primary); font-size: 13px; }
.breakthroughs__filter {
  margin-left: auto;
  display: flex; gap: var(--sp-xxs);
}
.breakthroughs__filter button {
  background: transparent; border: 1px solid var(--color-hairline);
  color: var(--color-body);
  font-family: var(--font-ferrari);
  font-size: 11px; font-weight: 600; letter-spacing: 1.1px; text-transform: uppercase;
  padding: 6px 12px; border-radius: var(--rounded-full);
  cursor: pointer;
  transition: color .15s linear, border-color .15s linear;
}
.breakthroughs__filter button:hover,
.breakthroughs__filter button.is-active {
  color: var(--color-ink); border-color: var(--color-ink);
}

/* Editorial index grid — sharp 0px cards, hairline dividers */
.index {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--color-hairline);
}
.index__item {
  background: transparent;
  border-bottom: 1px solid var(--color-hairline);
  border-right: 1px solid var(--color-hairline);
  padding: var(--sp-sm);
  display: flex; align-items: flex-start; gap: var(--sp-sm);
  min-height: 88px;
  position: relative;
  overflow: hidden;
  transition: background-color .15s linear;
}
.index__item:nth-child(3n) { border-right: 0; }
.index__item:hover { background: var(--color-canvas-elevated); }
.index__num {
  color: var(--color-muted);
  font-family: var(--font-ferrari);
  font-size: 11px; font-weight: 600; letter-spacing: 1.1px; text-transform: uppercase;
  min-width: 36px;
  padding-top: 4px;
}
.index__kw {
  color: var(--color-ink);
  font-family: var(--font-ferrari);
  font-size: 18px; font-weight: 700; line-height: 1.2; letter-spacing: 0;
}
.index__kw .red-dot {
  display: inline-block; width: 6px; height: 6px; background: var(--color-primary);
  margin-left: var(--sp-xxs); transform: translateY(-3px);
  opacity: 0; transition: opacity .15s linear;
}
.index__item:hover .index__kw .red-dot { opacity: 1; }

/* Scrolling marquee strip — cinematic motion */
.marquee {
  background: var(--color-canvas);
  border-top: 1px solid var(--color-hairline);
  border-bottom: 1px solid var(--color-hairline);
  overflow: hidden;
  padding: var(--sp-md) 0;
  position: relative;
}
.marquee__track {
  display: flex; gap: var(--sp-lg);
  white-space: nowrap;
  animation: marquee 60s linear infinite;
  will-change: transform;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item {
  color: var(--color-muted-soft);
  font-family: var(--font-ferrari);
  font-size: 26px; font-weight: 500; line-height: 1.5; letter-spacing: 0.195px;
  display: inline-flex; align-items: center; gap: var(--sp-lg);
}
.marquee__item .sep { color: var(--color-primary); }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}