.page-home {
  background: var(--ink);
  --home-grid-line: rgba(180, 136, 75, 0.18);
}

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

/* 首屏 */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-deep);
  color: var(--paper);
  padding-block: clamp(52px, 9vw, 92px) clamp(60px, 10vw, 116px);
}

.page-home .hero__img {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 42%;
  opacity: 0.42;
}

.page-home .hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(180deg, rgba(12, 38, 33, 0.96) 0%, rgba(12, 38, 33, 0.78) 46%, rgba(18, 51, 44, 0.9) 76%, rgba(12, 38, 33, 0.99) 100%),
    linear-gradient(115deg, rgba(180, 136, 75, 0.3) 0%, rgba(12, 38, 33, 0) 54%),
    radial-gradient(120% 80% at 84% 102%, rgba(231, 181, 99, 0.3) 0%, rgba(231, 181, 99, 0) 62%);
}

.page-home .hero__inner {
  display: grid;
  gap: clamp(34px, 6vw, 60px);
  align-items: start;
}

.page-home .hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 22px;
  padding: 7px 14px;
  border: 1px solid var(--line);
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-home .hero__dot {
  display: block;
  width: 6px;
  height: 6px;
  background: var(--amber);
}

.page-home .hero__title {
  margin: 0 0 22px;
  max-width: 14em;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: clamp(2.1rem, 7vw, 4.2rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--champagne);
}

.page-home .hero__deck {
  margin: 0 0 32px;
  max-width: 33em;
  font-size: clamp(1rem, 1.6vw, 1.0625rem);
  line-height: 1.9;
  color: rgba(247, 243, 234, 0.82);
}

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

/* 三向索引 */
.page-home .route-list {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .route-list::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--line);
}

.page-home .route-item {
  position: relative;
  padding: 0 0 26px 26px;
}

.page-home .route-item:last-child {
  padding-bottom: 0;
}

.page-home .route-item::before {
  content: "";
  position: absolute;
  left: -3px;
  top: 8px;
  width: 7px;
  height: 7px;
  background: var(--brass);
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-home .route-item:hover::before,
.page-home .route-item:focus-within::before {
  background: var(--amber);
  transform: scale(1.35);
}

.page-home .route-num {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--brass);
}

.page-home .route-link {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.45;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-home .route-link:hover,
.page-home .route-link:focus-visible {
  color: var(--amber);
  border-bottom-color: var(--amber);
}

.page-home .route-meta {
  margin: 9px 0 0;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--slate);
}

/* 通用区块 */
.page-home .band {
  padding-block: clamp(54px, 8.5vw, 108px);
}

.page-home .band--ink {
  background: var(--ink);
  color: var(--paper);
}

.page-home .band--deep {
  background: var(--ink-panel);
  color: var(--paper);
}

.page-home .band--paper {
  background: var(--paper);
  color: var(--text);
}

.page-home .band__head {
  margin-bottom: clamp(28px, 4vw, 46px);
}

.page-home .band__title {
  margin: 12px 0 14px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.55rem, 3.6vw, 2.45rem);
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.page-home .band--paper .band__title {
  color: var(--text);
}

.page-home .band--ink .band__title,
.page-home .band--deep .band__title {
  color: var(--champagne);
}

.page-home .band__intro {
  margin: 0;
  max-width: 41em;
  font-size: 16px;
  line-height: 1.9;
  color: #3c4c55;
}

.page-home .band--ink .band__intro {
  color: rgba(247, 243, 234, 0.78);
}

/* 留白带 */
.page-home .breath {
  padding-block: clamp(64px, 11vw, 132px);
  background: linear-gradient(180deg, var(--ink-deep) 0%, var(--ink) 58%, var(--ink-deep) 100%);
}

.page-home .breath__inner {
  padding-left: clamp(20px, 4vw, 46px);
  border-left: 1px solid var(--line);
}

.page-home .breath__line {
  margin: 0 0 16px;
  max-width: 20em;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: clamp(1.45rem, 4vw, 2.5rem);
  line-height: 1.34;
  letter-spacing: -0.02em;
  color: var(--champagne);
}

.page-home .breath__sub {
  margin: 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--slate);
}

/* 文档分类 */
.page-home .docs__layout {
  display: grid;
  gap: clamp(24px, 4vw, 42px);
}

.page-home .docs__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.page-home .doc-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 9px;
  overflow: hidden;
  padding: 22px 18px 20px;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  border: 1px solid rgba(180, 136, 75, 0.26);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-home .doc-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.18;
  background-image:
    linear-gradient(to right, rgba(180, 136, 75, 0.55) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(180, 136, 75, 0.55) 1px, transparent 1px);
  background-size: 24px 24px;
}

.page-home .doc-card:hover,
.page-home .doc-card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--amber);
  box-shadow: 0 18px 40px -28px rgba(0, 0, 0, 0.85);
}

.page-home .doc-card__num {
  position: relative;
  font-family: var(--font-num);
  font-size: clamp(1.5rem, 3vw, 2rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--amber);
}

.page-home .doc-card__name {
  position: relative;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  color: var(--champagne);
}

.page-home .doc-card__desc {
  position: relative;
  font-size: 13px;
  line-height: 1.72;
  color: var(--slate);
}

.page-home .docs__figure {
  margin: 0;
  border: 1px solid var(--line-ink);
  background: var(--ink-panel);
}

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

.page-home .docs__figure figcaption {
  padding: 14px 16px;
  font-size: 12.5px;
  line-height: 1.7;
  letter-spacing: 0.02em;
  color: var(--slate);
  border-top: 1px solid rgba(180, 136, 75, 0.24);
}

/* 动态横带 */
.page-home .band__head--split {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
}

.page-home .band__more {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
  transition: border-color var(--dur) var(--ease);
}

.page-home .band__more:hover,
.page-home .band__more:focus-visible {
  border-bottom-color: var(--amber);
}

.page-home .change-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: rgba(180, 136, 75, 0.3);
  border: 1px solid rgba(180, 136, 75, 0.3);
}

.page-home .change {
  background: var(--ink-panel);
  padding: 26px 22px;
  transition: background var(--dur) var(--ease);
}

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

.page-home .change__time {
  margin: 0 0 12px;
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--amber);
}

.page-home .change__title {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 1.02rem;
  line-height: 1.5;
  color: var(--champagne);
}

.page-home .change__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: rgba(247, 243, 234, 0.74);
}

/* 五步排查 */
.page-home .steps__layout {
  display: grid;
  gap: clamp(26px, 4vw, 48px);
}

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

.page-home .step {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  padding: 22px 0;
  border-top: 1px solid var(--line-ink);
}

.page-home .step:first-child {
  border-top: 0;
  padding-top: 0;
}

.page-home .step__num {
  font-family: var(--font-num);
  font-size: clamp(1.4rem, 2.6vw, 1.85rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--brass);
}

.page-home .step h3 {
  margin: 0 0 8px;
  font-family: var(--font-serif);
  font-size: 1.04rem;
  line-height: 1.5;
  color: var(--text);
}

.page-home .step p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: #3c4c55;
}

.page-home .step--key {
  padding-inline: 18px;
  background: rgba(231, 181, 99, 0.16);
  border-left: 2px solid var(--alert);
  border-top-color: transparent;
}

.page-home .step--key .step__num {
  color: var(--alert);
}

.page-home .step__link {
  display: inline-block;
  margin-top: 10px;
  font-size: 13.5px;
  letter-spacing: 0.04em;
  color: var(--alert);
  text-decoration: none;
  border-bottom: 1px solid rgba(196, 113, 63, 0.6);
}

.page-home .step__link:hover,
.page-home .step__link:focus-visible {
  color: var(--text);
  border-bottom-color: var(--text);
}

.page-home .steps__figure {
  margin: 0;
  border: 1px solid var(--line-ink);
}

.page-home .steps__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 8 / 5;
  height: auto;
  object-fit: cover;
}

.page-home .steps__figure figcaption {
  padding: 12px 16px;
  font-size: 12.5px;
  line-height: 1.7;
  color: #5a6a73;
  border-top: 1px solid var(--line-ink);
}

.page-home .steps__foot {
  margin-top: clamp(26px, 4vw, 40px);
}

/* 下载与联系 */
.page-home .combo-title {
  margin-top: 0;
}

.page-home .combo {
  display: grid;
  gap: 1px;
  background: rgba(180, 136, 75, 0.3);
  border: 1px solid rgba(180, 136, 75, 0.3);
}

.page-home .combo__panel {
  display: flex;
  flex-direction: column;
  gap: 16px;
  background: var(--ink-deep);
  padding: clamp(22px, 4vw, 38px);
}

.page-home .combo__figure {
  margin: 0;
}

.page-home .combo__figure img {
  display: block;
  width: 100%;
  aspect-ratio: 10 / 7;
  height: auto;
  object-fit: cover;
  border: 1px solid rgba(180, 136, 75, 0.24);
}

.page-home .combo__h {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 2.2vw, 1.4rem);
  line-height: 1.45;
  color: var(--champagne);
}

.page-home .combo__text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.88;
  color: rgba(247, 243, 234, 0.78);
}

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

.page-home .combo__text a,
.page-home .combo__minor a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(231, 181, 99, 0.45);
}

.page-home .combo__text a:hover,
.page-home .combo__minor a:hover,
.page-home .combo__text a:focus-visible,
.page-home .combo__minor a:focus-visible {
  border-bottom-color: var(--champagne);
}

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

.page-home .checksum {
  margin: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--slate);
  transition: max-height var(--dur) var(--ease), opacity var(--dur) var(--ease), margin var(--dur) var(--ease);
}

.page-home .dl:hover .checksum,
.page-home .dl:focus-within .checksum {
  max-height: 140px;
  opacity: 1;
  margin-top: 2px;
}

.page-home .combo__panel .btn {
  align-self: flex-start;
}

.page-home .contact-item {
  padding: 14px 0;
  border-top: 1px solid rgba(180, 136, 75, 0.24);
}

.page-home .contact-label {
  margin: 0 0 6px;
  font-size: 11.5px;
  letter-spacing: 0.16em;
  color: var(--slate);
}

.page-home .contact-value {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(1rem, 2vw, 1.16rem);
  line-height: 1.5;
  color: var(--champagne);
  overflow-wrap: anywhere;
}

/* 响应式 */
@media (min-width: 640px) {
  .page-home .docs__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-home .hero__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: clamp(30px, 4vw, 56px);
  }

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

  .page-home .docs__layout {
    grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .steps__layout {
    grid-template-columns: minmax(0, 1.28fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .combo {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  }

  .page-home .change-list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .page-home .hero__title {
    margin-right: -1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .doc-card,
  .page-home .route-item::before,
  .page-home .route-link,
  .page-home .change,
  .page-home .checksum {
    transition: none;
  }

  .page-home .doc-card:hover,
  .page-home .doc-card:focus-visible,
  .page-home .route-item:hover::before,
  .page-home .route-item:focus-within::before {
    transform: none;
  }
}
<<<END>>>