.page-home {
  position: relative;
  display: block;
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  overflow-x: hidden;
}

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

.page-home h2,
.page-home h3 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--title-ink);
  margin: 0;
}

.page-home p {
  margin: 0;
}

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

/* ---------- 首屏 ---------- */

.page-home .ph-hero {
  position: relative;
  padding-top: var(--space-6);
  padding-bottom: var(--section-y);
}

.page-home .ph-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-home .ph-hero__eyebrow {
  color: var(--color-ink-soft);
}

.page-home .ph-hero__title {
  font-size: var(--text-display);
  color: var(--title-ink);
  margin: var(--space-2) 0 var(--space-3);
  letter-spacing: 0.01em;
  max-width: 12ch;
}

.page-home .ph-hero__lead {
  font-size: var(--text-lg);
  line-height: 1.55;
  color: var(--color-ink);
  max-width: 46ch;
}

.page-home .ph-hero__acts {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2) var(--space-4);
  margin-top: var(--space-4);
}

.page-home .ph-hero__slab {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-radius: var(--radius-md);
  clip-path: polygon(5% 0, 100% 0, 100% 100%, 0 100%);
  padding: var(--space-8) var(--space-4) var(--space-4) var(--space-6);
  box-shadow: var(--shadow-1);
}

.page-home .ph-hero__geo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.34;
  z-index: -2;
}

.page-home .ph-hero__scrim {
  position: absolute;
  inset: 0;
  display: block;
  background: var(--overlay-scrim);
  z-index: -1;
}

.page-home .ph-figs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-4) var(--space-3);
}

.page-home .ph-fig {
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-contrast-line);
}

.page-home .ph-fig__num {
  display: block;
  font-size: calc(var(--text-figure) * 0.8);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.015em;
  color: var(--color-primary);
}

.page-home .ph-fig__cap {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-contrast-ink);
}

/* ---------- 两条入口 ---------- */

.page-home .ph-doors {
  padding: var(--section-y) 0;
  background: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--edge-soft);
  border-bottom: var(--border-thin) solid var(--edge-soft);
}

.page-home .ph-doors__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-home .ph-doors__title {
  font-size: var(--text-2xl);
  margin: var(--space-2) 0 var(--space-3);
}

.page-home .ph-doors__lead {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  max-width: 40ch;
}

.page-home .ph-door {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .ph-door--member {
  border-top-color: var(--color-primary);
}

.page-home .ph-door--content {
  border-top-color: var(--silk-lake);
}

.page-home .ph-door__media {
  border: var(--border-thin) solid var(--edge-metal);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-primary-soft);
  margin-bottom: var(--space-2);
}

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

.page-home .ph-door__title {
  font-size: var(--text-xl);
}

.page-home .ph-door__text {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-home .ph-door__step {
  font-size: var(--text-sm);
  color: var(--color-accent);
  letter-spacing: 0.02em;
}

.page-home .ph-door .link-arrow {
  align-self: flex-start;
  margin-top: var(--space-1);
}

/* ---------- 八个主分类目录 ---------- */

.page-home .ph-dir {
  padding: var(--section-y) 0;
  scroll-margin-top: 96px;
}

.page-home .ph-dir__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  margin-bottom: var(--space-6);
}

.page-home .ph-dir__title h2 {
  font-size: var(--text-3xl);
  margin-top: var(--space-2);
}

.page-home .ph-dir__note {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
  max-width: 52ch;
}

.page-home .ph-dir__band {
  position: relative;
  aspect-ratio: 1180 / 320;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--edge-metal);
  background: var(--color-primary-soft);
  margin: 0 0 var(--space-6);
}

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

.page-home .ph-cards {
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .ph-card {
  border-bottom: var(--border-thin) solid var(--color-line);
}

.page-home .ph-card__link {
  display: grid;
  grid-template-columns: 40px 1fr;
  grid-template-areas:
    "idx name"
    "desc desc"
    "tag tag";
  gap: var(--space-1) var(--space-2);
  align-items: baseline;
  padding: var(--space-3) var(--space-1);
  text-decoration: none;
  color: inherit;
  transition: background-color 220ms ease, padding-left 220ms ease;
}

.page-home .ph-card__idx {
  grid-area: idx;
  font-size: var(--text-sm);
  color: var(--color-primary);
  letter-spacing: 0.08em;
}

.page-home .ph-card__name {
  grid-area: name;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-heading);
  color: var(--title-ink);
  letter-spacing: var(--tracking-heading);
}

.page-home .ph-card__desc {
  grid-area: desc;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  padding-left: calc(40px + var(--space-2));
}

.page-home .ph-card__tag {
  grid-area: tag;
  justify-self: start;
  margin-left: calc(40px + var(--space-2));
  margin-top: var(--space-1);
}

.page-home .ph-card__tag--quiet {
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
  color: var(--color-ink-muted);
  border: var(--border-thin) solid var(--color-line);
  border-radius: var(--radius-sm);
  padding: 2px 8px;
}

.page-home .ph-card__link:hover,
.page-home .ph-card__link:focus-visible {
  background: var(--color-primary-soft);
}

.page-home .ph-card__link:hover .ph-card__name {
  color: var(--color-primary);
}

/* ---------- 关键数字 ---------- */

.page-home .ph-stats {
  padding: var(--section-y) 0;
  background: var(--color-highlight);
  border-top: var(--border-thin) solid var(--edge-metal);
  border-bottom: var(--border-thin) solid var(--edge-metal);
}

.page-home .ph-stats__head {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.page-home .ph-stats__eyebrow {
  color: var(--color-accent);
}

.page-home .ph-stats__title {
  font-size: var(--text-3xl);
  color: var(--color-contrast-surface);
  max-width: 22ch;
}

.page-home .ph-stats__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-home .ph-stat {
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--edge-metal);
}

.page-home .ph-stat__num {
  display: block;
  font-size: var(--text-4xl);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--color-accent);
}

.page-home .ph-stat__label {
  display: block;
  margin-top: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-contrast-surface);
  letter-spacing: var(--tracking-heading);
}

.page-home .ph-stat__note {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink);
}

.page-home .ph-stats__foot {
  margin-top: var(--space-8);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--edge-metal);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.page-home .ph-stats__foot p {
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-ink-soft);
  max-width: 60ch;
}

/* ---------- 内容反馈 ---------- */

.page-home .ph-feedback {
  padding: var(--section-y) 0 var(--section-y-lg);
}

.page-home .ph-feedback__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.page-home .ph-feedback__title {
  font-size: var(--text-3xl);
  margin: var(--space-2) 0 var(--space-3);
  max-width: 20ch;
}

.page-home .ph-feedback__copy p {
  font-size: var(--text-base);
  line-height: 1.75;
  color: var(--color-ink);
  max-width: var(--measure);
}

.page-home .ph-feedback__aside {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-home .ph-feedback__art {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  border-radius: var(--radius-md);
  border: var(--border-thin) solid var(--edge-metal);
  background: var(--color-primary-soft);
}

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

.page-home .ph-feedback__panel {
  border-top: var(--border-thin) solid var(--color-line);
  padding-top: var(--space-3);
}

.page-home .ph-feedback__panel .panel-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
}

.page-home .ph-fb__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: var(--border-thin) solid var(--color-line);
}

.page-home .ph-fb__col h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.page-home .ph-fb__col ul li {
  position: relative;
  padding-left: var(--space-3);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink-soft);
}

.page-home .ph-fb__col ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 1px;
  background: var(--color-primary);
}

.page-home .ph-fb__col p {
  font-size: var(--text-sm);
  line-height: 1.75;
  color: var(--color-ink);
}

.page-home .ph-fb__note {
  margin-top: var(--space-2);
  color: var(--color-ink-muted) !important;
}

/* ---------- 桌面端 ---------- */

@media (min-width: 860px) {
  .page-home .ph-hero__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: end;
  }

  .page-home .ph-hero__copy {
    grid-column: 1 / span 7;
  }

  .page-home .ph-hero__slab {
    grid-column: 8 / span 5;
  }

  .page-home .ph-doors__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .ph-doors__head {
    grid-column: 1 / span 3;
    position: sticky;
    top: 104px;
  }

  .page-home .ph-door--member {
    grid-column: 5 / span 4;
  }

  .page-home .ph-door--content {
    grid-column: 9 / span 4;
    margin-top: var(--space-8);
  }

  .page-home .ph-dir__head {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: end;
  }

  .page-home .ph-dir__title {
    grid-column: 1 / span 7;
  }

  .page-home .ph-dir__note {
    grid-column: 9 / span 4;
  }

  .page-home .ph-card__link {
    grid-template-columns: 48px 210px 1fr auto;
    grid-template-areas: "idx name desc tag";
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-2);
  }

  .page-home .ph-card__desc {
    padding-left: 0;
  }

  .page-home .ph-card__tag {
    margin: 0;
    justify-self: end;
  }

  .page-home .ph-card__link:hover,
  .page-home .ph-card__link:focus-visible {
    padding-left: var(--space-3);
  }

  .page-home .ph-stats__head {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: end;
    gap: var(--space-4);
  }

  .page-home .ph-stats__list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-4);
  }

  .page-home .ph-feedback__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-home .ph-feedback__copy {
    grid-column: 1 / span 6;
  }

  .page-home .ph-feedback__art {
    grid-column: 9 / span 4;
  }

  .page-home .ph-feedback__panel {
    grid-column: 1 / span 12;
    margin-top: var(--space-4);
  }

  .page-home .ph-fb__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-6);
  }
}

@media (min-width: 1120px) {
  .page-home .ph-hero__slab {
    padding: var(--space-8) var(--space-6) var(--space-6);
  }

  .page-home .ph-feedback__copy {
    grid-column: 1 / span 5;
  }

  .page-home .ph-feedback__art {
    grid-column: 8 / span 5;
  }
}

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