.page-home {
  --home-pad: clamp(18px, 2.4vw, 30px);
  --home-hair: rgba(39, 56, 106, 1);
  --home-paper-hair: rgba(20, 22, 28, .16);
}

.page-home .home-hero,
.page-home .home-cities,
.page-home .home-timeline,
.page-home .home-path,
.page-home .home-next {
  padding-block: clamp(40px, 6vw, 88px);
  border-top: 1px solid var(--line);
}

.page-home .home-hero {
  border-top: 0;
  padding-top: clamp(20px, 3vw, 36px);
}

.page-home .home-section__head {
  max-width: 74ch;
}

.page-home .home-section__head h2 {
  font-family: var(--font-display);
  font-size: clamp(25px, 3.4vw, 39px);
  line-height: 1.24;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 12px 0 0;
}

.page-home .home-section__intro {
  margin: 14px 0 0;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--muted);
  max-width: 62ch;
}

.page-home .eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
  margin: 0;
}

/* ---------- 首屏 Bento ---------- */
.page-home .home-hero__grid {
  margin-top: clamp(18px, 2.4vw, 30px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-hero__feature {
  position: relative;
  background: var(--ink-indigo);
  min-height: clamp(300px, 62vw, 420px);
  padding: var(--home-pad);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}

.page-home .home-hero__media {
  position: absolute;
  inset: 0;
  margin: 0;
}

.page-home .home-hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  max-width: 100%;
  filter: saturate(.5) contrast(1.08) brightness(.66);
  opacity: .62;
}

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

.page-home .home-hero__body h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5.2vw, 55px);
  line-height: 1.16;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 12px 0 0;
  max-width: 15em;
}

.page-home .home-hero__lead {
  margin: 16px 0 0;
  max-width: 52ch;
  font-size: var(--step-1);
  line-height: 1.78;
  color: var(--muted);
}

.page-home .home-hero__cell {
  background: var(--panel);
  padding: var(--home-pad);
  display: flex;
  flex-direction: column;
  gap: 7px;
  justify-content: center;
  min-height: 112px;
}

.page-home .home-hero__cell-label {
  margin: 0;
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--muted);
}

.page-home .home-hero__cell-value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(25px, 3.4vw, 39px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--amber-light);
}

.page-home .home-hero__cell-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.62;
  color: var(--muted);
}

/* ---------- 城市分工 ---------- */
.page-home .home-cities__grid {
  margin-top: clamp(22px, 2.8vw, 34px);
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-city {
  background: var(--panel);
  padding: var(--home-pad);
  display: flex;
  flex-direction: column;
  gap: 11px;
}

.page-home .home-city__idx {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-home .home-city__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(20px, 2.2vw, 25px);
  line-height: 1.36;
  color: var(--paper);
}

.page-home .home-city__text {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-city__scenes {
  margin: auto 0 0;
  padding: 6px 0 0;
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-home .home-city__scenes li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--amber-light);
  border: 1px solid var(--line);
  padding: 4px 10px;
}

.page-home .home-cities__media {
  margin: 0;
  position: relative;
  overflow: hidden;
  background: var(--ink-indigo);
  min-height: 230px;
}

.page-home .home-cities__media img {
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  display: block;
  max-width: 100%;
  filter: saturate(.5) contrast(1.06) brightness(.82);
}

.page-home .home-cities__media .media__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper);
  background: linear-gradient(to top, rgba(15, 26, 51, .92), rgba(15, 26, 51, 0));
}

/* ---------- 版本时间轴 ---------- */
.page-home .home-timeline__layout {
  margin-top: clamp(22px, 2.8vw, 34px);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(16px, 2vw, 26px);
}

.page-home .home-timeline__track {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(300px, 82vw);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-home .home-timeline__track:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 3px;
}

.page-home .home-timeline__node {
  scroll-snap-align: start;
  background: var(--ink-indigo);
  padding: var(--home-pad);
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 250px;
}

.page-home .home-timeline__year {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(25px, 3vw, 31px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--amber-light);
}

.page-home .home-timeline__ver {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-2);
  line-height: 1.3;
  color: var(--paper);
}

.page-home .home-timeline__desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .home-timeline__sites {
  margin: auto 0 0;
  padding-top: 10px;
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--celadon);
}

.page-home .home-timeline__media {
  margin: 0;
  position: relative;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid var(--line);
  min-height: 230px;
}

.page-home .home-timeline__media img {
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  display: block;
  max-width: 100%;
  filter: saturate(.45) contrast(1.08) brightness(.78);
}

.page-home .home-timeline__media .media__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper);
  background: linear-gradient(to top, rgba(15, 26, 51, .92), rgba(15, 26, 51, 0));
}

/* ---------- 季度档案 ---------- */
.page-home .home-quarter {
  background: var(--paper);
  color: var(--ink);
  border-top-color: var(--panel);
}

.page-home .home-quarter .home-section__head h2 {
  color: var(--ink);
}

.page-home .home-quarter .eyeow,
.page-home .home-quarter .eyebrow {
  color: var(--brick);
}

.page-home .home-quarter .home-section__intro {
  color: var(--muted-paper);
}

.page-home .home-quarter__body {
  margin-top: clamp(22px, 2.8vw, 34px);
}

.page-home .home-quarter .tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-home .home-quarter .tabs__tab {
  appearance: none;
  background: transparent;
  border: 1px solid var(--home-paper-hair);
  color: var(--muted-paper);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: .08em;
  padding: 8px 20px;
  cursor: pointer;
  transition: background 160ms var(--t), color 160ms var(--t), border-color 160ms var(--t);
}

.page-home .home-quarter .tabs__tab:hover {
  border-color: var(--ink-indigo);
  color: var(--ink-indigo);
}

.page-home .home-quarter .tabs__tab[aria-selected="true"] {
  background: var(--ink-indigo);
  border-color: var(--ink-indigo);
  color: var(--amber-light);
}

.page-home .home-quarter .tabs__tab:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-home .home-quarter__panels {
  margin-top: 22px;
  border-top: 1px solid var(--home-paper-hair);
  padding-top: 22px;
}

.page-home .home-quarter__panel + .home-quarter__panel {
  margin-top: 26px;
}

.page-home .quarter-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 14px;
}

.page-home .quarter-head__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(31px, 4vw, 49px);
  line-height: 1;
  letter-spacing: .03em;
  color: var(--brick);
}

.page-home .quarter-head__label {
  margin: 0;
  font-size: 15px;
  color: var(--muted-paper);
}

.page-home .quarter-track {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--home-paper-hair);
  border: 1px solid var(--home-paper-hair);
  margin-bottom: 16px;
}

.page-home .quarter-dot {
  background: var(--paper);
  padding: 14px 10px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: .06em;
  color: var(--ink);
}

.page-home .quarter-dot::after {
  content: "";
  display: block;
  height: 2px;
  width: 100%;
  background: var(--celadon);
}

.page-home .quarter-note {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--muted-paper);
}

.page-home .home-quarter__media {
  margin: clamp(26px, 3.4vw, 40px) 0 0;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--home-paper-hair);
  max-width: 720px;
  min-height: 200px;
}

.page-home .home-quarter__media img {
  width: 100%;
  height: 100%;
  min-height: 200px;
  object-fit: cover;
  display: block;
  max-width: 100%;
  filter: saturate(.5) contrast(1.05) brightness(.9);
}

.page-home .home-quarter__media .media__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 14px 16px 12px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--paper);
  background: linear-gradient(to top, rgba(15, 26, 51, .92), rgba(15, 26, 51, 0));
}

/* ---------- 服务路径 ---------- */
.page-home .home-path__acc {
  margin-top: clamp(22px, 2.8vw, 34px);
  border-top: 1px solid var(--line);
}

.page-home .home-path__acc .acc-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 16px;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--line);
  padding: 18px 4px;
  color: var(--paper);
  text-align: left;
  cursor: pointer;
  transition: color 160ms var(--t), border-color 160ms var(--t);
}

.page-home .home-path__acc .acc-trigger:hover,
.page-home .home-path__acc .acc-trigger[aria-expanded="true"] {
  color: var(--amber-light);
  border-bottom-color: var(--amber);
}

.page-home .home-path__acc .acc-trigger:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

.page-home .home-path__step {
  flex: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-home .home-path__name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(18px, 2vw, 25px);
  line-height: 1.3;
}

.page-home .home-path__acc .acc-trigger__mark {
  position: relative;
  flex: none;
  margin-left: auto;
  width: 12px;
  height: 12px;
  border: 1px solid currentColor;
}

.page-home .home-path__acc .acc-trigger__mark::before,
.page-home .home-path__acc .acc-trigger__mark::after {
  content: "";
  position: absolute;
  left: 1px;
  right: 1px;
  top: 50%;
  height: 1px;
  background: currentColor;
  transform: translateY(-50%);
}

.page-home .home-path__acc .acc-trigger__mark::after {
  transform: translateY(-50%) rotate(90deg);
  transition: transform 240ms var(--t);
}

.page-home .home-path__acc .acc-trigger[aria-expanded="true"] .acc-trigger__mark::after {
  transform: translateY(-50%) rotate(0deg);
}

.page-home .home-path__acc .acc-panel__inner {
  padding: 2px 4px 22px 40px;
}

.page-home .home-path__acc .acc-panel__body p {
  margin: 0;
  max-width: 68ch;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--muted);
}

/* ---------- 分流入口 ---------- */
.page-home .home-next {
  background: var(--panel);
}

.page-home .home-next__rail {
  margin-top: clamp(22px, 2.8vw, 34px);
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: min(300px, 82vw);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.page-home .home-next__card {
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: var(--home-pad);
  background: var(--ink-indigo);
  border: 1px solid transparent;
  color: var(--paper);
  text-decoration: none;
  transition: border-color 160ms var(--t), background 160ms var(--t), transform 160ms var(--t);
}

.page-home .home-next__card:hover {
  border-color: var(--amber);
  background: var(--panel);
  transform: translateY(-2px);
}

.page-home .home-next__card:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
  border-color: var(--amber);
}

.page-home .home-next__label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--amber);
}

.page-home .home-next__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--step-2);
  line-height: 1.36;
  color: var(--paper);
}

.page-home .home-next__text {
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--muted);
}

.page-home .home-next__go {
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--amber-light);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .home-cities__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-home .home-timeline__media {
    min-height: 300px;
  }

  .page-home .home-timeline__media img {
    min-height: 300px;
  }
}

@media (min-width: 900px) {
  .page-home .home-hero__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-areas:
      "feat feat a"
      "feat feat b"
      "c d e";
  }

  .page-home .home-hero__feature {
    grid-area: feat;
    min-height: 460px;
  }

  .page-home .home-hero__cell--a { grid-area: a; }
  .page-home .home-hero__cell--b { grid-area: b; }
  .page-home .home-hero__cell--c { grid-area: c; }
  .page-home .home-hero__cell--d { grid-area: d; }
  .page-home .home-hero__cell--e { grid-area: e; }

  .page-home .home-cities__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    grid-template-areas:
      "bj bj bj bj bj md md md md md md md"
      "sh sh sh sh gz gz gz gz cd cd cd cd";
  }

  .page-home .home-city--bj { grid-area: bj; }
  .page-home .home-city--sh { grid-area: sh; }
  .page-home .home-city--gz { grid-area: gz; }
  .page-home .home-city--cd { grid-area: cd; }
  .page-home .home-cities__media {
    grid-area: md;
    grid-column: auto;
    min-height: 300px;
  }

  .page-home .home-cities__media img {
    min-height: 300px;
  }
}

@media (min-width: 1000px) {
  .page-home .home-timeline__layout {
    grid-template-columns: minmax(0, 1fr) 280px;
    align-items: stretch;
  }

  .page-home .home-timeline__track {
    grid-auto-columns: minmax(240px, 1fr);
  }

  .page-home .home-timeline__media {
    min-height: 100%;
  }

  .page-home .home-timeline__media img {
    min-height: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-next__card,
  .page-home .home-path__acc .acc-trigger,
  .page-home .home-path__acc .acc-trigger__mark::after,
  .page-home .home-quarter .tabs__tab {
    transition: none;
  }

  .page-home .home-next__card:hover {
    transform: none;
  }

  .page-home .home-timeline__track,
  .page-home .home-next__rail {
    scroll-behavior: auto;
  }
}