.page-home {
  --home-gap: clamp(1rem, 2.2vw, 1.75rem);
  display: block;
  background: var(--ink-deep);
}

/* ---------- 首屏拼贴 ---------- */
.page-home .hero-board {
  position: relative;
  overflow: hidden;
  padding-block: clamp(2rem, 5vw, 4.5rem);
  background: linear-gradient(158deg, var(--ink-deep) 0%, var(--ink) 55%, var(--celadon) 100%);
  border-bottom: 1px solid var(--line);
}

.page-home .hero-board::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: .55;
  background-image:
    linear-gradient(90deg, rgba(245, 242, 233, .05) 1px, transparent 1px),
    linear-gradient(180deg, rgba(245, 242, 233, .05) 1px, transparent 1px);
  background-size: 64px 64px;
}

.page-home .hero-texture {
  position: absolute;
  inset: 0;
  z-index: 0;
  margin: 0;
  overflow: hidden;
  pointer-events: none;
}

.page-home .hero-texture img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .16;
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 48%, #000 100%);
  mask-image: linear-gradient(90deg, transparent 0%, #000 48%, #000 100%);
}

.page-home .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .hero-narrative {
  display: flex;
  flex-direction: column;
  gap: clamp(.85rem, 1.6vw, 1.15rem);
}

.page-home .hero-narrative h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(2rem, 7.4vw, 3.5rem);
  line-height: 1.14;
  letter-spacing: .01em;
  color: var(--paper);
}

.page-home .hero-narrative h1 em {
  font-style: normal;
  color: var(--gold);
}

.page-home .hero-lede {
  margin: 0;
  max-width: 36ch;
  font-size: clamp(.9375rem, 1.6vw, 1.0625rem);
  line-height: 1.85;
  color: rgba(245, 242, 233, .78);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: .25rem;
}

.page-home .hero-thumb {
  margin: clamp(.5rem, 2vw, 1.25rem) 0 0;
  width: 100%;
  max-width: 260px;
  border: 1px solid var(--line);
  background: var(--ink);
  overflow: hidden;
}

.page-home .hero-thumb img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* 右侧拼贴卡片 */
.page-home .hero-collage {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .update-card {
  display: flex;
  flex-direction: column;
  gap: .55rem;
  padding: clamp(1rem, 2.2vw, 1.5rem);
  background: linear-gradient(180deg, rgba(30, 77, 64, .92), rgba(18, 54, 45, .94));
  border: 1px solid var(--line);
  border-left: 3px solid var(--moss);
  transition: border-color var(--t-fast) var(--ease), transform var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-home .update-card:hover {
  border-left-color: var(--cinnabar);
  transform: translateY(-2px);
}

.page-home .update-card--lead {
  border-left-color: var(--gold);
  background: linear-gradient(180deg, rgba(47, 107, 88, .95), rgba(18, 54, 45, .95));
}

.page-home .update-card__num {
  margin: 0;
  font-family: var(--font-serif);
  font-size: .8125rem;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-home .update-card h2,
.page-home .update-card h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-weight: 700;
  line-height: 1.38;
  color: var(--paper);
}

.page-home .update-card h2 {
  font-size: clamp(1.15rem, 2.4vw, 1.55rem);
}

.page-home .update-card h3 {
  font-size: clamp(1.0125rem, 1.9vw, 1.2rem);
}

.page-home .update-card p {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(245, 242, 233, .74);
}

.page-home .update-card__link {
  align-self: flex-start;
  margin-top: .2rem;
  padding-bottom: 2px;
  font-size: .875rem;
  color: var(--gold-light);
  text-decoration: none;
  border-bottom: 1px solid rgba(227, 197, 107, .42);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-home .update-card__link:hover {
  color: var(--paper);
  border-color: var(--paper);
}

.page-home .hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}

.page-home .hero-tag {
  display: inline-flex;
  align-items: center;
  padding: .5rem .85rem;
  font-size: .875rem;
  color: rgba(245, 242, 233, .82);
  text-decoration: none;
  border: 1px solid var(--line);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-home .hero-tag:hover {
  color: var(--gold);
  border-color: var(--gold);
  background: rgba(201, 162, 39, .09);
}

/* ---------- 通用章节节奏 ---------- */
.page-home .section {
  padding-block: clamp(2.5rem, 6vw, 5rem);
}

.page-home .changes {
  background: var(--ink-deep);
}

.page-home .index-section {
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-deep) 100%);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.page-home .paths {
  background: var(--ink-deep);
}

.page-home .section-head {
  margin-bottom: clamp(1.5rem, 3.5vw, 2.75rem);
}

.page-home .section-head .lede {
  max-width: 62ch;
  margin: 0;
}

/* ---------- 核心变化速览 ---------- */
.page-home .change-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.25rem, 3vw, 2.5rem);
  align-items: start;
}

.page-home .change-figure {
  margin: 0;
  border: 1px solid var(--line);
  background: var(--ink);
  overflow: hidden;
}

.page-home .change-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .change-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .change-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .3rem 1rem;
  padding: clamp(1rem, 2vw, 1.4rem);
  background: var(--ink);
  transition: background var(--t-fast) var(--ease);
}

.page-home .change-item:hover {
  background: var(--celadon);
}

.page-home .change-num {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--gold);
}

.page-home .change-item h3 {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--paper);
}

.page-home .change-item p {
  grid-column: 2;
  margin: 0;
  font-size: .9375rem;
  line-height: 1.75;
  color: rgba(245, 242, 233, .7);
}

/* ---------- 站内索引导航 ---------- */
.page-home .folder-nav {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .folder {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: .5rem;
  min-height: 172px;
  padding: 1.6rem 1rem 1.2rem;
  background: var(--ink);
  text-decoration: none;
  transition: background var(--t-fast) var(--ease);
}

.page-home .folder::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-base) var(--ease);
}

.page-home .folder:hover {
  background: var(--celadon);
}

.page-home .folder:hover::before {
  transform: scaleX(1);
}

.page-home .folder__no {
  font-family: var(--font-serif);
  font-size: .75rem;
  letter-spacing: .22em;
  color: var(--gold);
}

.page-home .folder__name {
  font-family: var(--font-serif);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--paper);
}

.page-home .folder__desc {
  font-size: .875rem;
  line-height: 1.72;
  color: rgba(245, 242, 233, .66);
}

.page-home .folder__go {
  margin-top: auto;
  font-size: .8125rem;
  color: var(--gold-light);
  transition: color var(--t-fast) var(--ease);
}

.page-home .folder:hover .folder__go {
  color: var(--paper);
}

/* ---------- 版本与场景入口 ---------- */
.page-home .path-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-gap);
}

.page-home .path-col {
  display: flex;
  flex-direction: column;
  gap: .8rem;
  padding: clamp(1.25rem, 2.6vw, 2rem);
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(18, 54, 45, .72), rgba(11, 31, 26, .78));
}

.page-home .path-col--img {
  background: linear-gradient(180deg, rgba(30, 77, 64, .7), rgba(11, 31, 26, .82));
}

.page-home .path-col__no {
  margin: 0;
  font-family: var(--font-serif);
  font-size: .8125rem;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-home .path-col h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 2.6vw, 1.6rem);
  color: var(--paper);
}

.page-home .path-col__text {
  margin: 0;
  font-size: .9375rem;
  line-height: 1.8;
  color: rgba(245, 242, 233, .76);
}

.page-home .path-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .5rem;
}

.page-home .path-steps li {
  position: relative;
  padding-left: 1.15rem;
  font-size: .875rem;
  line-height: 1.7;
  color: rgba(245, 242, 233, .68);
}

.page-home .path-steps li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 7px;
  background: var(--cinnabar);
}

.page-home .path-figure {
  margin: 0 0 .35rem;
  border: 1px solid var(--line);
  background: var(--ink);
  overflow: hidden;
}

.page-home .path-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 10 / 7;
  object-fit: cover;
}

.page-home .path-col .btn {
  align-self: flex-start;
  margin-top: auto;
}

/* ---------- 品牌信任 ---------- */
.page-home .trust-band {
  padding-block: clamp(2.25rem, 5vw, 3.75rem);
  background: var(--paper);
  color: var(--stone);
  border-top: 2px solid var(--gold);
}

.page-home .trust-band .wrap {
  display: grid;
  gap: clamp(1.25rem, 3vw, 2rem);
}

.page-home .eyebrow--dark {
  color: #8a6a12;
}

.page-home .trust-head h2 {
  margin: .5rem 0 .8rem;
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.2vw, 2.25rem);
  line-height: 1.25;
  color: var(--ink-deep);
}

.page-home .trust-head p {
  margin: 0;
  max-width: 68ch;
  font-size: .9375rem;
  line-height: 1.85;
  color: rgba(26, 26, 26, .72);
}

.page-home .stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(26, 26, 26, .14);
  border: 1px solid rgba(26, 26, 26, .14);
}

.page-home .stat {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  padding: 1.15rem 1rem;
  background: var(--paper);
}

.page-home .stat-num {
  font-family: var(--font-serif);
  font-size: clamp(1.65rem, 3.4vw, 2.5rem);
  line-height: 1;
  color: var(--ink);
}

.page-home .stat-num sup {
  font-size: .42em;
  color: var(--gold);
}

.page-home .stat-label {
  font-size: .8125rem;
  line-height: 1.6;
  color: rgba(26, 26, 26, .62);
}

.page-home .trust-foot {
  margin: 0;
  padding-top: 1rem;
  font-size: .8125rem;
  letter-spacing: .04em;
  color: rgba(26, 26, 26, .55);
  border-top: 1px solid rgba(26, 26, 26, .12);
}

/* ---------- 断点 ---------- */
@media (max-width: 480px) {
  .page-home .hero-thumb {
    max-width: 200px;
  }

  .page-home .stat-row {
    grid-template-columns: 1fr;
  }
}

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

@media (min-width: 860px) {
  .page-home .hero-grid {
    grid-template-columns: 38fr 62fr;
    align-items: start;
  }

  .page-home .hero-collage {
    grid-template-columns: repeat(12, 1fr);
  }

  .page-home .update-card--lead {
    grid-column: 1 / -1;
  }

  .page-home .update-card--a {
    grid-column: 1 / 6;
  }

  .page-home .update-card--b {
    grid-column: 6 / -1;
  }

  .page-home .hero-tags {
    grid-column: 1 / -1;
  }

  .page-home .change-layout {
    grid-template-columns: 1.05fr .95fr;
  }

  .page-home .path-grid {
    grid-template-columns: 1fr 1fr;
  }

  .page-home .stat-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (min-width: 1080px) {
  .page-home .folder-nav {
    grid-template-columns: repeat(5, 1fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .update-card,
  .page-home .folder,
  .page-home .folder::before,
  .page-home .change-item,
  .page-home .hero-tag {
    transition: none;
  }

  .page-home .update-card:hover {
    transform: none;
  }
}