.page-home {
  --home-cut: 24px;
  background: var(--mist);
  color: var(--graphite);
  font-family: var(--sans);
}

.page-home .section {
  padding-block: clamp(3rem, 7vw, 5.5rem);
}

.page-home h1,
.page-home h2,
.page-home h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: 0.01em;
}

.page-home p {
  margin: 0;
}

.page-home img {
  display: block;
  max-width: 100%;
  height: auto;
}

.page-home .mono {
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.page-home .section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 0.85rem 1.25rem;
  padding-bottom: 1rem;
  margin-bottom: 1.75rem;
  border-bottom: 1px solid var(--line-ink);
}

.page-home .section-head-text {
  min-width: 0;
}

.page-home .section-index {
  font-size: clamp(1.9rem, 5vw, 3rem);
  line-height: 0.9;
  color: var(--gold);
}

.page-home .kicker {
  margin-bottom: 0.35rem;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--jade);
}

.page-home .section-title {
  font-size: clamp(1.55rem, 3.6vw, 2.45rem);
  line-height: 1.25;
}

/* ---------- hero ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  padding-block: clamp(1.25rem, 3vw, 2rem) clamp(2.5rem, 6vw, 4rem);
  color: var(--mist);
  background:
    repeating-linear-gradient(135deg, rgba(245, 242, 234, 0.04) 0 2px, transparent 2px 10px),
    radial-gradient(120% 110% at 88% 0%, #173a58 0%, rgba(11, 31, 51, 0) 64%),
    var(--ink);
  overflow: hidden;
}

.page-home .hero::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 14px;
  background: repeating-linear-gradient(90deg, var(--line-gold) 0 1px, transparent 1px 42px);
  opacity: 0.85;
  pointer-events: none;
}

.page-home .hero-wrap {
  position: relative;
  padding: clamp(1.1rem, 3vw, 2.25rem);
  border: 1px solid var(--line-gold);
  clip-path: polygon(0 0, calc(100% - var(--home-cut)) 0, 100% var(--home-cut), 100% 100%, var(--home-cut) 100%, 0 calc(100% - var(--home-cut)));
  background: linear-gradient(160deg, rgba(18, 46, 74, 0.72) 0%, rgba(11, 31, 51, 0.35) 62%, rgba(11, 31, 51, 0) 100%);
}

.page-home .hero-context {
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(201, 162, 74, 0.92);
}

.page-home .hero-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .hero-title {
  font-size: clamp(2.15rem, 8.5vw, 4.6rem);
  line-height: 1.04;
}

.page-home .hero-title em {
  display: block;
  font-style: normal;
  color: var(--gold);
}

.page-home .hero-lede {
  max-width: 46ch;
  margin-top: clamp(1rem, 2.5vw, 1.5rem);
  font-size: clamp(0.95rem, 1.6vw, 1.06rem);
  line-height: 1.85;
  color: rgba(245, 242, 234, 0.86);
}

.page-home .hero-ladder {
  margin: clamp(1.75rem, 4vw, 2.5rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line-soft);
}

.page-home .ladder-item {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr);
  gap: 0.15rem 0.9rem;
  padding: 0.85rem 0 0.85rem 0.9rem;
  border-bottom: 1px solid var(--line-soft);
  border-left: 2px solid transparent;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .ladder-item:hover {
  border-left-color: var(--gold);
  background: rgba(201, 162, 74, 0.06);
}

.page-home .ladder-key {
  grid-row: span 2;
  align-self: center;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--celadon);
}

.page-home .ladder-value {
  font-family: var(--serif);
  font-size: 1.02rem;
  color: var(--mist);
}

.page-home .ladder-note {
  font-size: 0.82rem;
  line-height: 1.6;
  color: rgba(245, 242, 234, 0.62);
}

.page-home .hero-side {
  position: relative;
}

.page-home .hero-window {
  position: relative;
  margin: 0;
  border: 1px solid rgba(201, 162, 74, 0.45);
  background: var(--navy);
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
}

.page-home .hero-window img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.85) contrast(1.06);
}

.page-home .hero-caption {
  padding: 0.6rem 0.9rem;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: rgba(245, 242, 234, 0.7);
  background: rgba(11, 31, 51, 0.92);
}

.page-home .quick-panel {
  display: grid;
  gap: 0.5rem;
  margin-top: 1rem;
  padding: 0.9rem;
  border: 1px solid var(--line-gold);
  background: rgba(18, 46, 74, 0.94);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
}

.page-home .quick-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(245, 242, 234, 0.55);
}

.page-home .quick-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 44px;
  padding: 0.55rem 0.85rem;
  border: 1px solid rgba(245, 242, 234, 0.22);
  color: var(--mist);
  font-size: 0.95rem;
  text-decoration: none;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease), color 180ms var(--ease);
}

.page-home .quick-link:hover,
.page-home .quick-link:focus-visible {
  border-color: var(--gold);
  background: rgba(201, 162, 74, 0.14);
}

.page-home .quick-link--amber {
  border-color: transparent;
  background: var(--amber);
  color: var(--ink);
  font-weight: 500;
}

.page-home .quick-link--amber:hover,
.page-home .quick-link--amber:focus-visible {
  background: #f0b155;
  color: var(--ink);
}

.page-home .quick-arrow {
  font-size: 0.95rem;
}

.page-home .hero-trail {
  display: block;
  width: 100%;
  height: 40px;
  margin-top: clamp(1.25rem, 3vw, 2rem);
  opacity: 0.8;
}

/* ---------- 01 短路径 ---------- */
.page-home .short-lede {
  max-width: 58ch;
  margin-bottom: clamp(1.5rem, 3.5vw, 2.25rem);
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(38, 49, 59, 0.82);
}

.page-home .steps {
  display: grid;
  gap: 0.85rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.page-home .step {
  position: relative;
  padding: 1.1rem 1.1rem 1.3rem;
  color: var(--mist);
  background: linear-gradient(150deg, var(--navy) 0%, #0e2540 100%);
  border-top: 2px solid var(--gold);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 0 100%);
  transition: transform 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-home .step:hover {
  box-shadow: 0 10px 26px rgba(11, 31, 51, 0.28);
}

.page-home .step-num {
  display: block;
  margin-bottom: 0.7rem;
  font-size: 1.75rem;
  line-height: 1;
  color: var(--amber);
}

.page-home .step-title {
  font-size: 1.08rem;
  line-height: 1.45;
  color: var(--mist);
}

.page-home .step-text {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(245, 242, 234, 0.72);
}

.page-home .short-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.5rem;
  margin-top: clamp(1.5rem, 3.5vw, 2.25rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--line-ink);
}

.page-home .short-foot p {
  flex: 1 1 16rem;
  font-size: 0.92rem;
  line-height: 1.75;
  color: rgba(38, 49, 59, 0.78);
}

/* ---------- 02 文档 ---------- */
.page-home .docs {
  background:
    repeating-linear-gradient(90deg, rgba(38, 49, 59, 0.035) 0 1px, transparent 1px 26px),
    var(--paper);
}

.page-home .docs-grid {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .docs-rail .section-title {
  margin-bottom: 1.25rem;
}

.page-home .docs-figure {
  margin: 0 0 1.25rem;
  border-left: 3px solid var(--jade);
}

.page-home .docs-figure img {
  width: 100%;
  aspect-ratio: 2 / 1;
  object-fit: cover;
}

.page-home .docs-stats {
  margin: 0;
  border-top: 1px solid rgba(38, 49, 59, 0.22);
}

.page-home .stat-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.62rem 0;
  border-bottom: 1px solid rgba(38, 49, 59, 0.16);
}

.page-home .stat-row dt {
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: rgba(38, 49, 59, 0.72);
}

.page-home .stat-row dd {
  margin: 0;
  font-size: 1.05rem;
  color: var(--ink);
}

.page-home .docs-list {
  display: grid;
  gap: 0.35rem;
}

.page-home .doc-card {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.35rem 0.85rem;
  padding: 1rem 0.9rem 1rem 0.75rem;
  border-left: 2px solid rgba(38, 49, 59, 0.14);
  background: rgba(245, 242, 234, 0.55);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .doc-card:hover,
.page-home .doc-card:focus-within {
  border-left-color: var(--gold);
  background: rgba(245, 242, 234, 0.95);
}

.page-home .doc-num {
  grid-row: span 2;
  font-size: 0.95rem;
  color: var(--jade);
}

.page-home .doc-title {
  font-size: 1.06rem;
  line-height: 1.5;
  color: var(--ink);
}

.page-home .doc-summary {
  margin-top: 0.4rem;
  font-size: 0.9rem;
  line-height: 1.75;
  color: rgba(38, 49, 59, 0.8);
}

.page-home .doc-meta {
  margin-top: 0.55rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: rgba(38, 49, 59, 0.55);
}

.page-home .doc-link {
  grid-column: 2 / -1;
  justify-self: start;
  margin-top: 0.7rem;
  font-size: 0.86rem;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--gold);
  padding-bottom: 2px;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.page-home .doc-link:hover,
.page-home .doc-link:focus-visible {
  color: #8a6b22;
  border-color: var(--amber);
}

/* ---------- 03 案例 ---------- */
.page-home .cases {
  color: var(--mist);
  background:
    radial-gradient(90% 70% at 12% 0%, #16354f 0%, rgba(11, 31, 51, 0) 60%),
    var(--ink);
}

.page-home .cases .section-head {
  border-bottom-color: var(--line-gold);
}

.page-home .cases .section-index {
  color: var(--amber);
}

.page-home .cases .kicker {
  color: var(--celadon);
}

.page-home .case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0 0 clamp(1.5rem, 3.5vw, 2.25rem);
  padding: 0;
  list-style: none;
}

.page-home .case-tags .tag {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  text-decoration: none;
  transition: background-color 180ms var(--ease), color 180ms var(--ease), box-shadow 180ms var(--ease);
}

.page-home .case-tags .tag:hover,
.page-home .case-tags .tag:focus-visible {
  background: var(--gold);
  color: var(--ink);
  box-shadow: 0 0 0 1px rgba(11, 31, 51, 0.2);
}

.page-home .case-grid {
  display: grid;
  gap: 1.1rem;
}

.page-home .case {
  padding: 1.15rem 1.15rem 1.35rem;
  border: 1px solid rgba(245, 242, 234, 0.16);
  background: rgba(18, 46, 74, 0.6);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.page-home .case:hover,
.page-home .case:focus-within {
  border-color: var(--gold);
  background: rgba(18, 46, 74, 0.9);
}

.page-home .case-figure {
  margin: -1.15rem -1.15rem 1rem;
  overflow: hidden;
}

.page-home .case-figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .case-title {
  margin-top: 0.65rem;
  font-size: clamp(1.1rem, 2.4vw, 1.4rem);
  line-height: 1.45;
  color: var(--mist);
}

.page-home .case-text {
  margin-top: 0.6rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(245, 242, 234, 0.74);
}

.page-home .case-link {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.86rem;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 180ms var(--ease), color 180ms var(--ease);
}

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

.page-home .case--wide {
  display: grid;
  gap: 0.35rem;
  border-style: dashed;
  background: rgba(111, 175, 158, 0.1);
}

.page-home .case-wide-label {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--jade);
}

.page-home .cases-foot {
  margin-top: clamp(1.5rem, 3.5vw, 2.25rem);
  padding-top: 1.1rem;
  border-top: 1px solid var(--line-gold);
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(245, 242, 234, 0.72);
}

.page-home .cases-foot-link {
  margin-left: 0.35rem;
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(230, 162, 60, 0.5);
}

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

/* ---------- 04 版本 ---------- */
.page-home .version {
  background: linear-gradient(180deg, #f2ede3 0%, var(--mist) 100%);
}

.page-home .version-inner {
  display: grid;
  gap: clamp(1.75rem, 4vw, 3rem);
}

.page-home .version-lede {
  max-width: 52ch;
  margin-top: 1rem;
  font-size: 0.98rem;
  line-height: 1.85;
  color: rgba(38, 49, 59, 0.82);
}

.page-home .version-list {
  margin: clamp(1.5rem, 3.5vw, 2rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid rgba(38, 49, 59, 0.2);
}

.page-home .version-item {
  display: grid;
  grid-template-columns: 3.2rem minmax(0, 1fr);
  gap: 0.9rem;
  padding: 1rem 0;
  border-bottom: 1px solid rgba(38, 49, 59, 0.16);
}

.page-home .version-num {
  font-size: 1.15rem;
  color: var(--gold);
}

.page-home .version-item-title {
  font-size: 1.04rem;
  line-height: 1.5;
  color: var(--ink);
}

.page-home .version-item p {
  margin-top: 0.4rem;
  font-size: 0.88rem;
  line-height: 1.78;
  color: rgba(38, 49, 59, 0.78);
}

.page-home .version-note {
  margin-top: 1.35rem;
  padding: 0.95rem 1rem;
  border-left: 3px solid var(--jade);
  background: rgba(111, 175, 158, 0.12);
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(38, 49, 59, 0.86);
}

.page-home .version-figure {
  margin: 0 0 1rem;
  border: 1px solid rgba(201, 162, 74, 0.4);
  background: var(--ink);
  clip-path: polygon(0 0, calc(100% - 22px) 0, 100% 22px, 100% 100%, 0 100%);
}

.page-home .version-figure img {
  width: 100%;
  aspect-ratio: 8 / 5;
  object-fit: cover;
}

.page-home .version-stamp {
  display: grid;
  gap: 0.3rem;
  padding: 0.9rem 0 0;
  border-top: 2px solid var(--gold);
}

.page-home .version-stamp-line {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: rgba(38, 49, 59, 0.75);
}

/* ---------- 结尾 ---------- */
.page-home .close {
  padding-block: clamp(2.75rem, 6vw, 4.5rem);
  color: var(--mist);
  background:
    repeating-linear-gradient(135deg, rgba(245, 242, 234, 0.035) 0 2px, transparent 2px 10px),
    linear-gradient(120deg, var(--ink) 0%, #14324e 100%);
}

.page-home .close-title {
  font-size: clamp(1.5rem, 3.8vw, 2.4rem);
  line-height: 1.3;
  color: var(--mist);
}

.page-home .close-text {
  max-width: 58ch;
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.85;
  color: rgba(245, 242, 234, 0.8);
}

.page-home .close-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

.page-home .close-actions .btn {
  text-decoration: none;
}

/* ---------- 平板与桌面 ---------- */
@media (min-width: 720px) {
  .page-home .steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
  }

  .page-home .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.25rem;
  }

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

  .page-home .case--wide {
    grid-column: 1 / -1;
    grid-template-columns: 10rem minmax(0, 1fr);
    align-items: start;
    gap: 1.25rem;
  }

  .page-home .case--wide .case-wide-label {
    padding-top: 0.35rem;
  }
}

@media (min-width: 900px) {
  .page-home .hero-grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, 0.88fr);
    align-items: start;
  }

  .page-home .hero-side {
    padding-bottom: 2.5rem;
  }

  .page-home .quick-panel {
    position: absolute;
    left: -2.25rem;
    bottom: 0;
    width: min(100%, 19rem);
    margin-top: 0;
    box-shadow: 0 18px 40px rgba(8, 24, 42, 0.45);
  }

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

  .page-home .step {
    padding: 1.15rem 1rem 1.4rem;
  }

  .page-home .step + .step::before {
    content: "";
    position: absolute;
    top: -2px;
    left: -0.9rem;
    width: 0.9rem;
    height: 2px;
    background: var(--gold);
  }

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

  .page-home .docs-rail {
    position: sticky;
    top: 5.5rem;
  }

  .page-home .doc-card {
    grid-template-columns: 2.6rem minmax(0, 1fr) auto;
    align-items: start;
    column-gap: 1.1rem;
  }

  .page-home .doc-link {
    grid-column: 3;
    grid-row: 1;
    margin-top: 0.3rem;
    align-self: start;
  }

  .page-home .doc-num {
    grid-row: 1 / span 2;
  }

  .page-home .case-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    gap: 1.5rem;
  }

  .page-home .case--lead {
    grid-column: 1;
    grid-row: span 2;
  }

  .page-home .case--lead .case-figure img {
    aspect-ratio: 3 / 2;
  }

  .page-home .case--wide {
    grid-column: 1 / -1;
    grid-template-columns: 12rem minmax(0, 1fr);
  }

  .page-home .version-inner {
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr);
    align-items: start;
  }

  .page-home .close-actions {
    gap: 1rem;
  }
}

@media (min-width: 1180px) {
  .page-home .hero-title {
    font-size: clamp(3rem, 4.6vw, 4.9rem);
  }

  .page-home .quick-panel {
    left: -3rem;
    width: 20rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .ladder-item,
  .page-home .quick-link,
  .page-home .step,
  .page-home .doc-card,
  .page-home .case,
  .page-home .case-link,
  .page-home .doc-link,
  .page-home .case-tags .tag {
    transition: none;
  }
}
<<<END>>>