.page-home {
  --home-rail: 280px;
  --home-edge: 2px solid var(--noir);
}

.page-home > section {
  padding-block: clamp(46px, 6vw, 92px);
}

.page-home > .hero {
  padding-top: clamp(14px, 2.4vw, 30px);
}

/* ---------- 面包屑留白 ---------- */
.page-home .breadcrumbs {
  padding-top: clamp(14px, 2vw, 24px);
}

/* ---------- 首屏：章节预览 ---------- */
.page-home .hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 48px);
}

@media (min-width: 920px) {
  .page-home .hero__grid {
    grid-template-columns: var(--home-rail) minmax(0, 1fr);
    align-items: start;
    gap: clamp(28px, 3.6vw, 54px);
  }
}

.page-home .hero__rail {
  position: relative;
  padding-top: 10px;
  border-top: 3px solid var(--noir);
}

.page-home .hero__gauge {
  display: block;
  width: 100%;
  height: 24px;
  margin: 14px 0 22px;
  color: var(--mist);
}

.page-home .timeline {
  list-style: none;
  margin: 0;
  padding: 0 0 0 28px;
  position: relative;
}

.page-home .timeline::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 6px;
  bottom: 14px;
  width: 2px;
  background: linear-gradient(180deg, var(--lime) 0%, var(--cyan) 42%, var(--mist) 100%);
  opacity: 0.5;
}

.page-home .timeline__item {
  position: relative;
  padding: 0 0 20px;
}

.page-home .timeline__item--end {
  padding-bottom: 0;
}

.page-home .timeline__item::before {
  content: "";
  position: absolute;
  left: -26px;
  top: 5px;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
  background: var(--ink);
  border: 2px solid var(--mist);
  transition: border-color var(--t), background var(--t), transform var(--t);
}

.page-home .timeline__item:hover::before,
.page-home .timeline__item:focus-within::before {
  border-color: var(--lime);
  background: var(--lime);
  transform: scale(1.12);
}

.page-home .timeline__phase {
  margin: 0;
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--paper);
}

.page-home .timeline__note {
  margin: 4px 0 0;
  font-size: 12px;
  line-height: 1.6;
  color: var(--mist);
}

.page-home .hero__main {
  min-width: 0;
}

.page-home .hero__title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(36px, 6.2vw, 76px);
  line-height: 1.03;
  letter-spacing: -0.015em;
  color: var(--paper);
  max-width: 17ch;
}

.page-home .hero__figure {
  margin-top: clamp(24px, 3.4vw, 42px);
}

.page-home .hero__previews {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(22px, 3vw, 34px);
  background: var(--line);
  border: var(--home-edge);
}

.page-home .preview {
  position: relative;
  background: var(--ink-2);
  padding: clamp(18px, 2.4vw, 28px);
  outline: 2px solid transparent;
  outline-offset: -2px;
  transition: transform var(--t), outline-color var(--t), background var(--t);
}

.page-home .preview:hover,
.page-home .preview:focus-within {
  transform: translateX(4px);
  outline-color: var(--lime);
  background: #143A2F;
  z-index: 1;
}

.page-home .preview__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--lime);
}

.page-home .preview__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(19px, 2vw, 23px);
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-home .preview__text {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--text);
}

.page-home .preview__foot {
  margin: 14px 0 0;
  color: var(--mist);
}

@media (min-width: 700px) {
  .page-home .hero__previews {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ---------- 全宽数据带 ---------- */
.page-home .band--home {
  position: relative;
  overflow: hidden;
  background: var(--ink-2);
  border-top: var(--home-edge);
  border-bottom: var(--home-edge);
}

.page-home .band__texture {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.16;
  pointer-events: none;
}

.page-home .band--home .band__inner {
  position: relative;
  z-index: 1;
  padding-block: clamp(30px, 4.4vw, 58px);
}

.page-home .scale__title {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(24px, 3.4vw, 40px);
  letter-spacing: 0.02em;
  color: var(--paper);
  max-width: 22ch;
}

.page-home .scale__stats {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3vw, 44px);
  margin-top: clamp(24px, 3.4vw, 42px);
}

@media (min-width: 780px) {
  .page-home .scale__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .scale__stats .stat {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
  border-top: 2px solid var(--line);
}

.page-home .scale__stats .stat-number {
  font-family: var(--font-mono);
  font-size: clamp(48px, 7.4vw, 86px);
  font-weight: 400;
  line-height: 0.94;
  letter-spacing: -0.03em;
  color: var(--lime);
}

.page-home .scale__stats .stat-label {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
  max-width: 30ch;
}

/* ---------- 三层内容标签页 ---------- */
.page-home .layers .section-head {
  margin-bottom: clamp(22px, 3vw, 34px);
}

.page-home .layers .tablist {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-bottom: 2px solid var(--line);
}

.page-home .layers .tab {
  appearance: none;
  background: transparent;
  border: 0;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  padding: 14px 20px 13px;
  font-family: var(--font-display);
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--text);
  cursor: pointer;
  transition: color var(--t), border-color var(--t), background var(--t);
}

.page-home .layers .tab:hover {
  color: var(--paper);
  background: var(--ink-2);
}

.page-home .layers .tab[aria-selected="true"] {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

.page-home .layers .tab:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: -4px;
}

.page-home .tabpanel {
  padding-top: clamp(24px, 3.4vw, 40px);
}

.page-home .tabpanel[hidden] {
  display: none;
}

.page-home .layer {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 48px);
}

@media (min-width: 880px) {
  .page-home .layer {
    grid-template-columns: minmax(0, 1fr) 260px;
    align-items: start;
  }
}

.page-home .layer__title {
  margin: 0 0 14px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(22px, 2.6vw, 30px);
  letter-spacing: 0.03em;
  color: var(--paper);
}

.page-home .layer__text p {
  margin: 0 0 14px;
  font-size: 16px;
  line-height: 1.78;
  color: var(--text);
  max-width: 62ch;
}

.page-home .layer__link {
  margin: 18px 0 0;
}

.page-home .layer__link a {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--lime);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: border-color var(--t), color var(--t);
}

.page-home .layer__link a:hover,
.page-home .layer__link a:focus-visible {
  border-bottom-color: var(--lime);
}

.page-home .layer__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: var(--home-edge);
}

.page-home .layer__facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line-soft);
}

.page-home .layer__facts strong {
  font-family: var(--font-mono);
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--lime);
}

.page-home .layer__facts span {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mist);
}

/* ---------- 版本沿革 ---------- */
.page-home .versions__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(28px, 4vw, 56px);
}

@media (min-width: 940px) {
  .page-home .versions__grid {
    grid-template-columns: minmax(0, 1fr) 340px;
    align-items: start;
  }
}

.page-home .vlog {
  list-style: none;
  margin: clamp(22px, 3vw, 34px) 0 0;
  padding: 0;
  border-top: var(--home-edge);
}

.page-home .vlog__item {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 18px 16px 20px;
  border-bottom: 1px solid var(--line-soft);
  border-left: 3px solid transparent;
  transition: border-left-color var(--t), background var(--t), transform var(--t);
}

@media (min-width: 620px) {
  .page-home .vlog__item {
    grid-template-columns: 104px minmax(0, 1fr);
    gap: 22px;
    align-items: baseline;
  }
}

.page-home .vlog__item:hover,
.page-home .vlog__item:focus-within {
  border-left-color: var(--lime);
  background: var(--ink-2);
  transform: translateX(4px);
}

.page-home .vlog__tag {
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-home .vlog__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-home .vlog__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.74;
  color: var(--text);
  max-width: 58ch;
}

.page-home .pulse {
  margin-top: clamp(24px, 3.2vw, 36px);
}

.page-home .pulse__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .pulse__list li {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
}

@media (min-width: 560px) {
  .page-home .pulse__list li {
    grid-template-columns: 118px minmax(0, 1fr);
    gap: 18px;
    align-items: baseline;
  }
}

.page-home .pulse__list li:last-child {
  border-bottom: 0;
}

.page-home .pulse__key {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-home .pulse__val {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
}

.page-home .versions__aside .media-caption {
  margin-top: 12px;
}

.page-home .versions__aside .layer__link {
  margin-top: 16px;
}

/* ---------- 联赛专题轨道 ---------- */
.page-home .leagues__intro {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text);
  max-width: 58ch;
}

.page-home .leagues__figure {
  margin-top: clamp(24px, 3.4vw, 40px);
}

.page-home .leagues .media-caption {
  margin-top: 10px;
}

.page-home .league-rail {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-home .league-rail .rail-label {
  margin: 0 0 12px;
}

.page-home .league-track {
  display: flex;
  gap: 1px;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  padding-bottom: 12px;
  border-top: var(--home-edge);
  border-bottom: var(--home-edge);
  background: var(--line);
  scrollbar-width: thin;
  scrollbar-color: var(--mist) transparent;
}

.page-home .league-track:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 4px;
}

.page-home .league-card {
  flex: 0 0 min(268px, 78vw);
  scroll-snap-align: start;
  background: var(--ink);
  padding: 22px 20px 26px;
  transition: background var(--t), transform var(--t);
}

.page-home .league-card:hover {
  background: var(--ink-2);
  transform: translateY(-3px);
}

.page-home .league-card__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--mist);
}

.page-home .league-card__name {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(26px, 3.2vw, 34px);
  line-height: 1;
  letter-spacing: 0.06em;
  color: var(--paper);
}

.page-home .league-card__en {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-home .league-card__note {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px solid var(--line-soft);
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
}

/* ---------- 口径与截止 ---------- */
.page-home .scope__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(22px, 3.4vw, 52px);
}

@media (min-width: 880px) {
  .page-home .scope__grid {
    grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
    align-items: start;
  }
}

.page-home .scope__grid .section-title {
  margin-top: 12px;
  max-width: 14ch;
}

.page-home .scope__grid .prose p {
  margin: 0 0 16px;
}

/* ---------- 下一步入口 ---------- */
.page-home .next__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(14px, 2vw, 22px);
  margin-top: clamp(24px, 3.2vw, 38px);
}

@media (min-width: 760px) {
  .page-home .next__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .next-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-decoration: none;
  background: var(--ink-2);
  border: var(--home-edge);
  box-shadow: 6px 6px 0 var(--shadow-block);
  padding: clamp(20px, 2.6vw, 28px);
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}

.page-home .next-card:hover,
.page-home .next-card:focus-visible {
  transform: translate(-3px, -3px);
  box-shadow: 10px 10px 0 var(--shadow-block);
  border-color: var(--lime);
}

.page-home .next-card:focus-visible {
  outline: 2px solid var(--lime);
  outline-offset: 3px;
}

.page-home .next-card__idx {
  color: var(--cyan);
}

.page-home .next-card__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(19px, 2.2vw, 24px);
  letter-spacing: 0.04em;
  color: var(--paper);
}

.page-home .next-card__text {
  font-size: 13px;
  line-height: 1.7;
  color: var(--text);
}

.page-home .next__aside {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 32px;
  margin: clamp(24px, 3.2vw, 36px) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line-soft);
}

.page-home .next__aside a {
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--mist);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  padding-bottom: 2px;
  transition: color var(--t), border-color var(--t);
}

.page-home .next__aside a:hover,
.page-home .next__aside a:focus-visible {
  color: var(--lime);
  border-bottom-color: var(--lime);
}

@media (prefers-reduced-motion: reduce) {
  .page-home .preview,
  .page-home .vlog__item,
  .page-home .league-card,
  .page-home .next-card,
  .page-home .timeline__item::before {
    transition: none;
  }
  .page-home .preview:hover,
  .page-home .preview:focus-within,
  .page-home .vlog__item:hover,
  .page-home .vlog__item:focus-within,
  .page-home .league-card:hover,
  .page-home .next-card:hover,
  .page-home .next-card:focus-visible,
  .page-home .timeline__item:hover::before,
  .page-home .timeline__item:focus-within::before {
    transform: none;
  }
}