.page-home {
  --ph-hair: 1px solid var(--wx-line);
  --ph-band-line: 2px solid var(--wx-copper);
  background: var(--wx-paper);
  overflow-x: clip;
}

/* ---------- 首屏：主题声明 ---------- */
.page-home .ph-intro {
  padding-block: clamp(20px, 3.6vw, 40px) clamp(18px, 2.8vw, 32px);
  background:
    linear-gradient(180deg, rgba(180, 136, 75, 0.07), rgba(180, 136, 75, 0) 58%),
    var(--wx-paper);
  border-bottom: var(--ph-band-line);
}

.page-home .ph-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 46px);
  margin-top: clamp(16px, 2.6vw, 30px);
}

.page-home .ph-intro__lead .wx-h1 {
  margin-top: 10px;
}

.page-home .ph-intro__lead .wx-lede {
  margin-top: 14px;
  max-width: 36em;
}

.page-home .ph-intro__lead .wx-annotation {
  margin-top: 16px;
}

.page-home .ph-intro__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(18px, 2.6vw, 26px);
}

.page-home .ph-intro__figure {
  margin: 0;
  border: var(--ph-hair);
  background: var(--wx-paper-layer);
  box-shadow: var(--wx-shadow);
}

.page-home .ph-intro__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ---------- 章节锚点目录 ---------- */
.page-home .ph-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 22px;
  margin-top: clamp(22px, 3vw, 34px);
  padding-top: 14px;
  border-top: var(--ph-hair);
}

.page-home .ph-anchor {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 4px 0;
  font-size: 14px;
  color: var(--wx-stone);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 140ms var(--wx-ease), border-color 140ms var(--wx-ease);
}

.page-home .ph-anchor__num {
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--wx-copper-text);
}

.page-home .ph-anchor:hover,
.page-home .ph-anchor:focus-visible {
  color: var(--wx-ink);
  border-bottom-color: var(--wx-copper);
}

/* ---------- 01 参数骨架 ---------- */
.page-home .ph-params {
  position: relative;
  isolation: isolate;
  overflow: hidden;
}

.page-home .ph-params__texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.1;
  pointer-events: none;
}

.page-home .ph-params > .wx-container {
  position: relative;
  z-index: 1;
}

.page-home .ph-params .wx-kicker {
  color: var(--wx-copper);
}

.page-home .ph-params .wx-h2 {
  color: var(--wx-paper);
  max-width: 22em;
}

.page-home .ph-params__lede {
  margin-top: 14px;
  max-width: 40em;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(246, 242, 234, 0.76);
}

.page-home .ph-params__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(22px, 3.2vw, 38px);
  background: rgba(201, 198, 188, 0.24);
  border: 1px solid rgba(201, 198, 188, 0.24);
}

.page-home .ph-param {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: clamp(16px, 2.2vw, 26px);
  background: rgba(8, 28, 23, 0.72);
  border-top: 2px solid transparent;
  transition: border-color 160ms var(--wx-ease), background-color 160ms var(--wx-ease);
}

.page-home .ph-param:hover {
  border-top-color: var(--wx-copper);
  background: rgba(8, 28, 23, 0.92);
}

.page-home .ph-param__num {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--wx-copper);
}

.page-home .ph-param__title {
  margin: 0;
  color: var(--wx-paper);
}

.page-home .ph-param__desc {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.74;
  color: rgba(246, 242, 234, 0.76);
}

.page-home .ph-param__meta {
  margin: auto 0 0;
  padding-top: 4px;
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--wx-copper-bright);
}

/* ---------- 02 覆盖口径 ---------- */
.page-home .ph-coverage {
  background: var(--wx-paper-layer);
}

.page-home .ph-coverage__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 46px);
}

.page-home .ph-coverage__text .wx-h2 {
  margin-top: 10px;
}

.page-home .ph-coverage__text > p {
  margin-top: 14px;
  max-width: 34em;
  line-height: 1.78;
}

.page-home .ph-coverage__text .wx-annotation {
  font-size: 13.5px;
}

.page-home .ph-districts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .ph-districts li {
  padding: 5px 11px;
  font-family: var(--wx-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--wx-ink);
  background: var(--wx-paper);
  border: var(--ph-hair);
}

.page-home .ph-dots {
  height: 52px;
  margin-top: clamp(16px, 2.4vw, 24px);
  background-image: radial-gradient(circle, var(--wx-copper) 1.5px, transparent 1.6px);
  background-size: 13px 13px;
  border-top: var(--ph-hair);
  border-bottom: var(--ph-hair);
  opacity: 0.8;
}

.page-home .ph-dots__note {
  margin: 8px 0 0;
  font-size: 12px;
  color: var(--wx-stone);
}

.page-home .ph-code {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 12px;
  margin-top: clamp(16px, 2.4vw, 24px);
  padding: 12px 14px;
  background: var(--wx-paper);
  border: var(--ph-hair);
  border-left: 3px solid var(--wx-copper);
}

.page-home .ph-code__label {
  font-size: 12px;
  color: var(--wx-stone);
}

.page-home .ph-code__value {
  font-size: 15px;
  letter-spacing: 0.04em;
  color: var(--wx-ink);
}

.page-home .ph-coverage__figure {
  margin: 0;
  border: var(--ph-hair);
  background: var(--wx-paper);
  box-shadow: var(--wx-shadow);
}

.page-home .ph-coverage__figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 14 / 9;
  object-fit: cover;
}

/* ---------- 03 版本与复核 ---------- */
.page-home .ph-timeline {
  background: var(--wx-paper);
  border-top: var(--ph-hair);
}

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

.page-home .ph-timeline__col .wx-h2 {
  margin-top: 10px;
}

.page-home .ph-timeline__list {
  margin: clamp(18px, 2.8vw, 30px) 0 0;
  padding: 0 0 0 clamp(18px, 2.4vw, 28px);
  list-style: none;
  border-left: 2px solid var(--wx-line);
}

.page-home .ph-record {
  position: relative;
  padding-bottom: clamp(18px, 2.4vw, 28px);
}

.page-home .ph-record:last-child {
  padding-bottom: 0;
}

.page-home .ph-record::before {
  content: "";
  position: absolute;
  left: calc(clamp(18px, 2.4vw, 28px) * -1 - 7px);
  top: 5px;
  width: 12px;
  height: 12px;
  box-sizing: border-box;
  background: var(--wx-paper);
  border: 2px solid var(--wx-copper);
}

.page-home .ph-record__time {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--wx-copper-text);
}

.page-home .ph-record__title {
  margin: 0 0 6px;
  font-family: var(--wx-head);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--wx-ink);
}

.page-home .ph-record__desc {
  margin: 0;
  max-width: 34em;
  font-size: 14.5px;
  line-height: 1.74;
  color: var(--wx-stone);
}

.page-home .ph-timeline__link {
  margin-top: clamp(18px, 2.4vw, 26px);
}

.page-home .ph-timeline__aside {
  display: grid;
  align-content: start;
  gap: clamp(16px, 2.2vw, 24px);
}

.page-home .ph-timeline__aside figure {
  margin: 0;
  border: var(--ph-hair);
  background: var(--wx-paper-layer);
  box-shadow: var(--wx-shadow);
}

.page-home .ph-timeline__aside figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ---------- 04 筛选入口 ---------- */
.page-home .ph-filter-entry {
  background: var(--wx-paper-layer);
  border-top: var(--ph-band-line);
}

.page-home .ph-filter-entry .wx-h2 {
  margin-top: 10px;
  max-width: 24em;
}

.page-home .ph-filter-entry__lede {
  margin-top: 12px;
  max-width: 38em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--wx-stone);
}

.page-home .ph-dims {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(12px, 1.6vw, 18px);
  margin-top: clamp(18px, 2.8vw, 30px);
}

.page-home .ph-dim {
  display: block;
  padding: clamp(16px, 2vw, 22px);
  background: var(--wx-paper);
  border: var(--ph-hair);
  box-shadow: var(--wx-shadow);
  color: inherit;
  text-decoration: none;
  transition: border-color 140ms var(--wx-ease), box-shadow 140ms var(--wx-ease), transform 140ms var(--wx-ease);
}

.page-home .ph-dim:hover,
.page-home .ph-dim:focus-visible {
  border-color: var(--wx-copper);
  box-shadow: 4px 4px 0 var(--wx-copper);
  transform: translate(-1px, -1px);
}

.page-home .ph-dim__num {
  display: block;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--wx-copper-text);
}

.page-home .ph-dim__name {
  display: block;
  margin-top: 6px;
  font-family: var(--wx-head);
  font-size: 18px;
  font-weight: 600;
  color: var(--wx-ink);
}

.page-home .ph-dim__desc {
  display: block;
  margin-top: 6px;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--wx-stone);
}

/* ---------- 05 合作对规格 ---------- */
.page-home .ph-coop .wx-kicker {
  color: var(--wx-copper);
}

.page-home .ph-coop .wx-h2 {
  color: var(--wx-paper);
  margin-top: 10px;
  max-width: 20em;
}

.page-home .ph-coop__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 46px);
}

.page-home .ph-coop__text p:not(.wx-kicker) {
  margin-top: 14px;
  max-width: 38em;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(246, 242, 234, 0.78);
}

.page-home .ph-coop__aside {
  padding: clamp(18px, 2.4vw, 26px);
  background: rgba(8, 28, 23, 0.62);
  border: 1px solid rgba(180, 136, 75, 0.42);
}

.page-home .ph-coop__label {
  margin: 0;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wx-copper);
}

.page-home .ph-coop__req {
  margin: 8px 0 0;
  font-size: clamp(24px, 3.4vw, 34px);
  letter-spacing: 0.02em;
  line-height: 1.1;
  color: var(--wx-copper-bright);
}

.page-home .ph-coop__hint {
  margin: 10px 0 0;
  font-size: 13.5px;
  line-height: 1.68;
  color: rgba(246, 242, 234, 0.7);
}

.page-home .ph-coop__aside .wx-btn {
  margin-top: clamp(16px, 2.2vw, 22px);
}

/* ---------- 桌面栅格 ---------- */
@media (min-width: 760px) {
  .page-home .ph-params__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .ph-param {
    grid-column: span 3;
  }

  .page-home .ph-param--wide {
    grid-column: span 6;
  }

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

@media (min-width: 960px) {
  .page-home .ph-intro__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .ph-coverage__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    align-items: start;
  }

  .page-home .ph-timeline__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-home .ph-coop__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (max-width: 959px) {
  .page-home .ph-intro__figure img {
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 640px) {
  .page-home .ph-dots {
    background-size: 11px 11px;
    height: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home *,
  .page-home *::before,
  .page-home *::after {
    transition: none !important;
  }

  .page-home .ph-dim:hover,
  .page-home .ph-dim:focus-visible {
    transform: none;
  }
}