.page-home {
  --home-ink: var(--ink-1);
  --home-pad: clamp(16px, 3.6vw, 34px);
  display: block;
}

/* ---------- 01 首屏 ---------- */
.page-home .home-hero {
  position: relative;
  padding-top: clamp(18px, 3.6vw, 40px);
}

.page-home .home-hero__grid {
  position: relative;
  display: grid;
  gap: clamp(22px, 4vw, 44px);
  margin-top: 16px;
}

.page-home .home-hero__mark {
  position: absolute;
  left: -0.05em;
  bottom: -0.34em;
  z-index: 2;
  font-size: clamp(96px, 26vw, 240px);
  line-height: 0.78;
  letter-spacing: -0.05em;
  color: rgba(0, 229, 208, 0.1);
  pointer-events: none;
}

.page-home .home-hero__lead {
  position: relative;
  z-index: 3;
}

.page-home .home-hero__lead h1 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(34px, 8.2vw, 68px);
  line-height: 1.02;
  letter-spacing: -0.015em;
  color: var(--paper);
  text-wrap: balance;
}

.page-home .home-hero__lede {
  margin-top: 16px;
  max-width: 46ch;
  color: var(--slate);
  font-size: clamp(15px, 2.3vw, 17px);
  line-height: 1.75;
}

.page-home .home-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 26px 0 0;
  padding: 18px 0 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-home .home-stats__item {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.page-home .home-stats__item .num {
  font-family: var(--font-mono);
  font-size: clamp(24px, 5vw, 34px);
  font-weight: 700;
  color: var(--cyan);
  letter-spacing: -0.02em;
}

.page-home .home-stats__k {
  font-size: 13px;
  color: var(--slate);
}

.page-home .home-hero__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 28px;
}

.page-home .home-hero__jump {
  font-size: 14px;
}

.page-home .home-hero__media {
  position: relative;
  z-index: 1;
}

.page-home .home-hero__media figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--slate);
}

/* 坐标索引 */
.page-home .home-index__wrap {
  margin-top: clamp(38px, 7vw, 76px);
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.page-home .home-index__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(20px, 3.4vw, 26px);
  font-weight: 600;
  color: var(--paper);
}

.page-home .home-index__hint {
  margin: 8px 0 0;
  font-size: 13.5px;
  color: var(--slate);
}

.page-home .home-index {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
}

.page-home .home-index__item {
  background: var(--ink-0);
  padding: 16px 14px;
  border-left: 2px solid transparent;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .home-index__item:hover,
.page-home .home-index__item:focus-within {
  border-left-color: var(--cyan);
  background: var(--ink-1);
}

.page-home .home-index__no {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  letter-spacing: 0.08em;
}

.page-home .home-index__link {
  display: block;
  margin-top: 6px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: 0.01em;
  color: var(--paper);
  text-decoration: none;
}

.page-home .home-index__item:hover .home-index__link,
.page-home .home-index__item:focus-within .home-index__link {
  color: var(--cyan-soft);
}

.page-home .home-index__desc {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

/* ---------- 第二章 赛程带 ---------- */
.page-home .home-note {
  margin-top: 12px;
  max-width: 72ch;
  color: var(--slate);
  font-size: 14.5px;
  line-height: 1.7;
}

.page-home .home-band {
  margin-top: clamp(52px, 9vw, 110px);
}

.page-home .home-band__scroller {
  display: flex;
  gap: 14px;
  margin-top: 22px;
  padding: 6px 2px 20px;
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: var(--ink-3) transparent;
}

.page-home .home-band__scroller:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.page-home .home-band__media {
  flex: 0 0 auto;
  width: min(74vw, 320px);
  scroll-snap-align: start;
}

.page-home .home-band__media figcaption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--slate);
}

.page-home .band-card {
  flex: 0 0 auto;
  width: min(72vw, 262px);
  scroll-snap-align: start;
  padding: 18px 18px 16px;
  background: var(--ink-1);
  border: 1px solid var(--line-soft);
  border-top: 2px solid var(--line-cyan);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-home .band-card[data-state="live"] {
  border-top-color: var(--red);
  background: linear-gradient(180deg, rgba(226, 58, 46, 0.14), var(--ink-1) 46%);
}

.page-home .band-card__when {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate);
  letter-spacing: 0.04em;
}

.page-home .band-card__when .num {
  font-size: 20px;
  font-weight: 700;
  color: var(--cyan);
  margin-right: 6px;
}

.page-home .band-card[data-state="live"] .band-card__when .num {
  color: var(--paper);
}

.page-home .band-card__match {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.24;
  color: var(--paper);
}

.page-home .band-card__vs {
  display: inline-block;
  margin: 0 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--cyan);
  vertical-align: 2px;
}

.page-home .band-card__meta {
  margin: 0;
  font-size: 12.5px;
  color: var(--slate);
}

.page-home .band-card__tag {
  margin: auto 0 0;
}

/* ---------- 第三章 四入口 ---------- */
.page-home .home-doors {
  margin-top: clamp(52px, 9vw, 110px);
}

.page-home .home-doors__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-home .door {
  padding: 22px 20px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.page-home .door__no {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
}

.page-home .door__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 4.4vw, 27px);
  line-height: 1.2;
  color: var(--paper);
}

.page-home .door__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--slate);
}

.page-home .door__link {
  margin-top: auto;
  font-size: 14px;
}

.page-home .door__btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 第四章 城市图例 ---------- */
.page-home .home-city {
  margin-top: clamp(52px, 9vw, 110px);
}

.page-home .home-city__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 38px);
  margin-top: 24px;
}

.page-home .city-scale {
  margin-bottom: 22px;
}

.page-home .city-scale__track {
  position: relative;
  height: 34px;
  background-color: var(--ink-2);
  background-image: repeating-linear-gradient(90deg, rgba(140, 154, 181, 0.35) 0 1px, transparent 1px calc(100% / 31));
  overflow: hidden;
}

.page-home .city-scale__fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 58%;
  background: linear-gradient(90deg, rgba(0, 229, 208, 0.55), var(--cyan));
}

.page-home .city-scale__labels {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin: 10px 0 0;
  font-size: 12.5px;
  color: var(--slate);
}

.page-home .city-scale__labels .num {
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 700;
  color: var(--cyan);
  margin-right: 5px;
}

.page-home .city-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--line-soft);
}

.page-home .city-list__item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  background: var(--ink-0);
}

.page-home .city-list__dot {
  width: 8px;
  height: 8px;
  flex: 0 0 auto;
  background: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 208, 0.12);
}

.page-home .city-list__dot--hot {
  background: var(--orange);
  box-shadow: 0 0 0 3px rgba(255, 122, 26, 0.16);
}

.page-home .city-list__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 18px;
  color: var(--paper);
}

.page-home .city-list__tag {
  margin-left: auto;
}

.page-home .home-city__more {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--slate);
}

.page-home .home-city__media figcaption {
  margin-top: 10px;
  font-size: 12.5px;
  color: var(--slate);
}

/* ---------- 第五章 版本归档 ---------- */
.page-home .home-archive {
  margin-top: clamp(52px, 9vw, 110px);
}

.page-home .home-archive__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 4vw, 40px);
  margin-top: 24px;
}

.page-home .fold {
  border-bottom: 1px solid var(--line);
  background: var(--ink-1);
}

.page-home .fold:first-child {
  border-top: 1px solid var(--line);
}

.page-home .fold__sum {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 16px;
  cursor: pointer;
  list-style: none;
  font-family: var(--font-serif);
  font-size: clamp(16px, 2.8vw, 19px);
  font-weight: 600;
  color: var(--paper);
}

.page-home .fold__sum::-webkit-details-marker {
  display: none;
}

.page-home .fold__sum::after {
  content: "+";
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--cyan);
  flex: 0 0 auto;
}

.page-home .fold[open] .fold__sum::after {
  content: "–";
}

.page-home .fold__sum:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: -2px;
}

.page-home .fold__body {
  padding: 0 16px 20px;
}

.page-home .fold__body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--slate);
  max-width: 62ch;
}

.page-home .home-archive__aside {
  padding: 18px;
  background: var(--ink-2);
  border-left: 2px solid var(--line-cyan);
}

.page-home .home-archive__aside figcaption {
  margin-top: 10px;
  font-size: 12px;
  color: var(--slate);
}

.page-home .home-archive__tip {
  margin: 16px 0 12px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--paper);
}

/* ---------- 第六章 回访与信任 ---------- */
.page-home .home-return {
  margin-top: clamp(52px, 9vw, 110px);
}

.page-home .home-return__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 24px;
}

.page-home .home-return__card {
  padding: 22px 20px;
}

.page-home .home-return__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 21px;
  color: var(--paper);
}

.page-home .home-return__card p {
  margin: 0 0 14px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--slate);
}

.page-home .home-trust {
  margin-top: clamp(34px, 6vw, 62px);
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.page-home .home-trust__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin: 0 0 26px;
  padding: 0;
  list-style: none;
  font-size: 13.5px;
  color: var(--slate);
}

.page-home .home-trust__list .num {
  display: inline-block;
  min-width: 3.4em;
  margin-right: 10px;
  font-family: var(--font-mono);
  font-size: 19px;
  font-weight: 700;
  color: var(--paper);
}

.page-home .home-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  margin: 0;
  padding: 20px 18px;
  background: var(--ink-1);
  border-left: 2px solid var(--orange);
}

.page-home .home-contact__row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.page-home .home-contact__row dt {
  flex: 0 0 6.2em;
  font-size: 13px;
  color: var(--slate);
}

.page-home .home-contact__row dd {
  margin: 0;
  font-size: 14px;
  color: var(--paper);
}

.page-home .home-footnote {
  margin: 22px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .home-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-home .home-index {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .city-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-return__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-trust__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .home-contact {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 24px;
  }

  .page-home .home-contact__row {
    flex-direction: column;
    gap: 4px;
  }

  .page-home .home-contact__row dt {
    flex: none;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 1.02fr) minmax(0, 0.98fr);
    align-items: end;
  }

  .page-home .home-hero__mark {
    bottom: -0.26em;
  }

  .page-home .home-index {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-home .home-index__item {
    padding: 20px 18px;
  }

  .page-home .home-doors__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .door--wide {
    grid-column: span 4;
  }

  .page-home .door--narrow {
    grid-column: span 2;
  }

  .page-home .home-city__grid {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: start;
  }

  .page-home .home-archive__grid {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-home .home-band__scroller {
    padding-bottom: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-index__item {
    transition: none;
  }
}