.page-home {
  --ph-hair: 1px solid rgba(138, 147, 166, 0.22);
  --ph-hair-soft: 1px solid rgba(138, 147, 166, 0.14);
  --ph-gap: clamp(2.75rem, 6vw, 5rem);
  --ph-inner: clamp(1.5rem, 3.4vw, 2.5rem);
  overflow-x: clip;
}

.page-home figure {
  margin: 0;
}

.page-home .figure__media {
  overflow: hidden;
}

.page-home .figure__media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---------- 01 首屏 ---------- */

.page-home .hero {
  padding-block: clamp(2.5rem, 7vw, 5.5rem) clamp(2rem, 5vw, 4rem);
}

.page-home .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4.5vw, 2.5rem);
  align-items: start;
}

.page-home .hero__coord {
  margin: 0;
  font-size: 0.6875rem;
  letter-spacing: 0.22em;
  color: var(--c-gray);
  border-left: 2px solid var(--c-lime);
  padding-left: 0.75rem;
}

.page-home .hero__title {
  margin: 0.7rem 0 1.1rem;
  font-size: clamp(2.5rem, 10vw, 6.25rem);
  line-height: 0.94;
  letter-spacing: -0.02em;
  font-weight: 900;
  color: var(--c-paper);
}

.page-home .hero__lede {
  max-width: 46ch;
  margin: 0 0 clamp(1.75rem, 4vw, 2.75rem);
  font-size: 1.0625rem;
  color: var(--c-paper-dim);
}

.page-home .hero__paths-label {
  margin: 0 0 0.85rem;
}

.page-home .route-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 2px solid var(--c-steel);
}

.page-home .route-item {
  border-bottom: var(--ph-hair);
}

.page-home .route-item__link {
  display: grid;
  grid-template-columns: 2.75rem minmax(0, 1fr);
  grid-template-areas:
    "idx label"
    "idx desc";
  gap: 0.15rem 0.9rem;
  padding: 0.8rem 0.5rem 0.8rem 0;
  text-decoration: none;
  color: inherit;
  transition: background var(--dur) var(--ease), padding-left var(--dur) var(--ease);
}

.page-home .route-item__idx {
  grid-area: idx;
  padding-top: 0.2rem;
  font-size: 0.8125rem;
  letter-spacing: 0.1em;
  color: var(--c-gray);
  transition: color var(--dur) var(--ease);
}

.page-home .route-item__label {
  grid-area: label;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--c-paper);
}

.page-home .route-item__desc {
  grid-area: desc;
  font-size: 0.875rem;
  color: var(--c-gray);
}

.page-home .route-item__link:hover {
  background: rgba(198, 255, 61, 0.06);
  padding-left: 0.7rem;
}

.page-home .route-item__link:hover .route-item__idx {
  color: var(--c-lime);
}

.page-home .route-item__link:focus-visible {
  outline: 2px solid var(--c-signal);
  outline-offset: -2px;
  padding-left: 0.7rem;
}

.page-home .route-item__link:focus-visible .route-item__idx {
  color: var(--c-signal);
}

.page-home .hero__media {
  aspect-ratio: 16 / 10;
  border: 2px solid var(--c-steel);
  box-shadow: var(--shadow-hard);
}

/* ---------- 章节通用节奏 ---------- */

.page-home .section {
  padding-block: var(--ph-gap);
  border-top: var(--ph-hair-soft);
}

.page-home .section-head {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .gates__lede,
.page-home .versions__lede,
.page-home .slices__lede {
  max-width: var(--measure);
  margin: 0;
}

.page-home .gates__actions,
.page-home .records__actions,
.page-home .versions__actions,
.page-home .slices__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.25rem, 2.6vw, 1.85rem);
}

/* ---------- 02 入口横条 ---------- */

.page-home .gates__figure {
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

.page-home .gate-row {
  list-style: none;
  margin: clamp(1.5rem, 3vw, 2.25rem) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 2px;
  background: var(--c-steel);
  border: 2px solid var(--c-steel);
}

.page-home .gate {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 0.6rem;
  min-height: 6.5rem;
  padding: 1rem 0.85rem 1.15rem;
  background: var(--c-charcoal);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-home .gate:hover {
  background: var(--c-indigo);
  box-shadow: inset 0 0 0 2px var(--c-lime);
}

.page-home .gate__idx {
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--c-gray);
}

.page-home .gate__name {
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.45;
  color: var(--c-paper);
}

/* ---------- 03 记录时间线 ---------- */

.page-home .records__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(1.75rem, 4vw, 2.5rem);
  align-items: start;
}

.page-home .records__lede {
  margin: 0 0 clamp(1.25rem, 3vw, 1.85rem);
  max-width: var(--measure);
}

.page-home .tl-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 1.5rem;
  border-left: 2px solid var(--c-steel);
}

.page-home .tl-item {
  position: relative;
  display: grid;
  gap: 0.15rem;
  padding: 0.85rem 0 0.85rem 0.15rem;
  border-bottom: var(--ph-hair-soft);
}

.page-home .tl-item:last-child {
  border-bottom: 0;
}

.page-home .tl-item::before {
  content: "";
  position: absolute;
  left: -1.5rem;
  top: 1.25rem;
  width: 9px;
  height: 9px;
  margin-left: -5.5px;
  border-radius: 50%;
  background: var(--c-cyan);
  box-shadow: 0 0 0 3px var(--c-indigo);
}

.page-home .tl-item__stamp {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--c-cyan);
}

.page-home .tl-item__title {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--c-paper);
}

.page-home .tl-item__meta {
  margin: 0;
  font-size: 0.78rem;
  color: var(--c-gray);
}

.page-home .records__figure .figure__media {
  border: 2px solid var(--c-steel);
  aspect-ratio: 16 / 9;
}

.page-home .records__figure .figure__caption {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  color: var(--c-gray);
}

/* ---------- 04 版本对照 ---------- */

.page-home .versions__figure {
  margin: clamp(1.5rem, 3vw, 2.25rem) 0;
}

.page-home .versions__figure .figure__media {
  border: 2px solid var(--c-steel);
  aspect-ratio: 16 / 9;
}

.page-home .compare {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  background: var(--c-steel);
  border: 2px solid var(--c-steel);
}

.page-home .compare__col {
  display: grid;
  gap: 0.5rem;
  align-content: start;
  padding: clamp(1.25rem, 3.2vw, 2.25rem);
  background: var(--c-charcoal);
}

.page-home .compare__col--new {
  background: var(--c-indigo);
  box-shadow: inset 0 0 0 2px var(--c-lime);
}

.page-home .compare__tag {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-gray);
}

.page-home .compare__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(3.25rem, 10vw, 5.5rem);
  font-weight: 900;
  line-height: 0.9;
  color: var(--c-paper-dim);
}

.page-home .compare__col--new .compare__num {
  color: var(--c-lime);
}

.page-home .compare__label {
  margin: 0;
  max-width: 30ch;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-paper-dim);
}

/* ---------- 05 案例切片 ---------- */

.page-home .slice-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 2px;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--c-steel);
  border: 2px solid var(--c-steel);
}

.page-home .slice {
  display: grid;
  gap: 0.75rem;
  align-content: start;
  padding: clamp(1.25rem, 3.2vw, 2rem);
  background: var(--c-charcoal);
  transition: background var(--dur) var(--ease);
}

.page-home .slice:hover {
  background: var(--c-indigo);
}

.page-home .slice__tag {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--c-cyan);
}

.page-home .slice__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--c-paper);
}

.page-home .slice__body {
  margin: 0;
  font-size: 0.9375rem;
  line-height: 1.78;
  color: var(--c-gray);
}

/* ---------- 06 反馈通道 ---------- */

.page-home .closing {
  border-top: 2px solid var(--c-steel);
}

.page-home .closing__lede {
  max-width: 58ch;
  margin: 0;
}

.page-home .closing__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-home .gate-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-home .compare {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-home .slice-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 960px) {
  .page-home .records__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: clamp(2rem, 4vw, 3.5rem);
  }
}

@media (min-width: 1024px) {
  .page-home .hero__grid {
    grid-template-columns: minmax(0, 1.15fr) 2.25rem minmax(0, 0.85fr);
    gap: clamp(2rem, 4vw, 3.5rem);
    align-items: center;
  }

  .page-home .hero__coord {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    justify-self: center;
    padding-left: 0;
    padding-top: 0.85rem;
    border-left: 0;
    border-top: 2px solid var(--c-lime);
  }
}

@media (min-width: 1100px) {
  .page-home .gate-row {
    grid-template-columns: repeat(9, minmax(0, 1fr));
  }

  .page-home .gate {
    min-height: 8.5rem;
    padding: 1.1rem 0.8rem 1.35rem;
  }
}

@media (max-width: 700px) {
  .page-home .hero__media {
    box-shadow: 3px 3px 0 var(--c-ink);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .route-item__link,
  .page-home .gate,
  .page-home .slice {
    transition: none;
  }
}