.page-home {
  --home-card-bg: rgba(17, 26, 43, 0.86);
  --home-soft: #C3D0E2;
  --home-paper-soft: #5C5343;
  --home-gap: clamp(14px, 2.2vw, 26px);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: clamp(38px, 5.6vw, 80px) 0 clamp(44px, 6vw, 88px);
}

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

.page-home .hero-veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(100deg, rgba(11, 18, 32, 0.96) 0%, rgba(11, 18, 32, 0.85) 42%, rgba(11, 18, 32, 0.66) 74%, rgba(11, 18, 32, 0.9) 100%),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(31, 46, 69, 0.42) 39px 40px),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(31, 46, 69, 0.42) 39px 40px);
}

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

.page-home .hero-kicker {
  margin: 0 0 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-home .hero-title {
  margin: 0 0 18px;
  max-width: 22ch;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(32px, 5.4vw, 68px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-home .hero-lede {
  margin: 0 0 clamp(26px, 3.6vw, 44px);
  max-width: 62ch;
  font-size: clamp(15px, 1.5vw, 17px);
  line-height: 1.75;
  color: var(--muted);
}

.page-home .hero-stage {
  display: grid;
  gap: var(--home-gap);
}

.page-home .hero-index {
  display: flex;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  border-bottom: 1px solid var(--line);
  padding-bottom: 10px;
}

.page-home .hero-index li {
  display: flex;
  align-items: baseline;
  gap: 6px;
  min-width: 0;
}

.page-home .idx-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-home .idx-label {
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--muted);
  white-space: nowrap;
}

.page-home .hero-entries {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .entry-card {
  --shift: 0px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: clamp(18px, 2.2vw, 26px);
  background: var(--home-card-bg);
  border: 1px solid var(--line);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%);
  color: var(--white);
  text-decoration: none;
  transform: translateY(var(--shift));
  transition: border-color 0.12s var(--ease), background 0.24s var(--ease);
}

.page-home .entry-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--red);
}

.page-home .entry-card[data-tone="blue"]::before {
  background: var(--blue);
}

.page-home .entry-card:hover,
.page-home .entry-card:focus-visible {
  border-color: var(--cyan);
  background: rgba(17, 26, 43, 0.96);
}

.page-home .entry-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.page-home .entry-name {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.page-home .entry-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--home-soft);
}

.page-home .entry-more {
  margin: 4px 0 0;
  padding-left: 12px;
  border-left: 1px dashed var(--line);
  font-size: 13px;
  line-height: 1.65;
  color: var(--muted);
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.page-home .entry-card:hover .entry-more,
.page-home .entry-card:focus-visible .entry-more {
  border-left-color: var(--cyan);
  color: var(--home-soft);
}

.page-home .entry-go {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--cyan);
}

/* 版本状态折叠条 */
.page-home .hero-status {
  margin-top: clamp(26px, 3.6vw, 42px);
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.page-home .hero-status .fold-head {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 8px 0;
  background: none;
  border: 0;
  color: var(--white);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.page-home .hero-status .fold-head:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-home .status-pill {
  flex: 0 0 auto;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  background: var(--red);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.page-home .status-text {
  font-size: 13px;
  color: var(--muted);
}

.page-home .hero-status .fold-icon {
  margin-left: auto;
  font-size: 12px;
  color: var(--cyan);
  transition: transform 0.24s var(--ease);
}

.page-home .hero-status .fold-head[aria-expanded="true"] .fold-icon {
  transform: rotate(180deg);
}

.page-home .hero-status .fold-panel {
  padding: 10px 0 4px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--muted);
}

.page-home .hero-status .fold-panel p {
  margin: 0 0 10px;
  max-width: 66ch;
}

.page-home .link-line {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 227, 224, 0.4);
}

/* ---------- 章节通用 ---------- */
.page-home .section {
  padding: clamp(52px, 6.6vw, 96px) 0;
}

/* ---------- 02 红蓝双栏 ---------- */
.page-home .lanes {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--home-gap);
}

.page-home .lane {
  padding: clamp(20px, 2.8vw, 32px);
}

.page-home .lane--red {
  background: linear-gradient(158deg, rgba(226, 58, 58, 0.18), rgba(226, 58, 58, 0.04) 58%, transparent 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-home .lane--blue {
  background: linear-gradient(158deg, rgba(45, 108, 223, 0.18), rgba(45, 108, 223, 0.04) 58%, transparent 100%);
  clip-path: polygon(22px 0, 100% 0, 100% 100%, 0 100%, 0 22px);
}

.page-home .lane-head {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 16px;
}

.page-home .lane-kind {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--red);
}

.page-home .lane--blue .lane-kind {
  color: var(--cyan);
}

.page-home .lane-title {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(21px, 2.4vw, 29px);
  line-height: 1.12;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-home .lane-rows {
  display: grid;
  gap: 6px;
  margin-bottom: 22px;
}

.page-home .lane-row {
  display: block;
  padding: 14px 0 14px 16px;
  border-left: 2px solid var(--line);
  color: var(--white);
  text-decoration: none;
  transition: border-color 0.12s var(--ease), padding-left 0.24s var(--ease);
}

.page-home .lane-row:hover,
.page-home .lane-row:focus-visible {
  border-left-color: var(--cyan);
  padding-left: 22px;
}

.page-home .lane-row h4 {
  margin: 0 0 6px;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 800;
  line-height: 1.35;
}

.page-home .lane-row p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-home .lane .figure {
  margin: 0;
}

/* ---------- 03 步骤路径 ---------- */
.page-home .step-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 42px);
}

.page-home .steps {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .step {
  display: flex;
  gap: 14px;
  padding: 18px;
  background: var(--ink-2);
  border-top: 2px solid var(--line);
}

.page-home .step--key {
  background: linear-gradient(135deg, rgba(226, 58, 58, 0.24), rgba(226, 58, 58, 0.06));
  border-top-color: var(--red);
}

.page-home .step-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--cyan);
  font-variant-numeric: tabular-nums;
}

.page-home .step--key .step-num {
  color: var(--red-hi);
}

.page-home .step-body h3 {
  margin: 0 0 6px;
  font-size: clamp(15px, 1.7vw, 18px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--white);
}

.page-home .step-body h3 a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(245, 247, 250, 0.42);
}

.page-home .step-body h3 a:hover,
.page-home .step-body h3 a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-home .step-body p {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.72;
  color: var(--muted);
}

.page-home .step-figure {
  margin: 0;
}

.page-home .step-cta {
  margin-top: clamp(22px, 3vw, 34px);
}

/* ---------- 04 数据条 ---------- */
.page-home .stats-section {
  background:
    linear-gradient(180deg, rgba(45, 108, 223, 0.16), transparent 72%),
    var(--ink-2);
  clip-path: polygon(0 0, 100% 26px, 100% 100%, 0 100%);
  padding-top: clamp(64px, 8vw, 112px);
}

.page-home .stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .stat {
  display: flex;
  flex-direction: column-reverse;
  gap: 10px;
  padding: clamp(18px, 2.4vw, 30px);
  background: var(--ink-2);
}

.page-home .stat dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-home .stat dd {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.page-home .stat-num {
  font-family: var(--font-mono);
  font-size: clamp(30px, 4.2vw, 48px);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: var(--white);
}

.page-home .stat-unit {
  font-size: 12px;
  color: var(--cyan);
}

.page-home .stats-foot {
  margin: clamp(18px, 2.4vw, 28px) 0 0;
  font-family: var(--font-mono);
  font-size: 12px;
}

.page-home .stats-foot a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(127, 227, 224, 0.4);
}

/* ---------- 05 更新列表 ---------- */
.page-home .update-list {
  margin: 0 0 clamp(24px, 3vw, 36px);
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-home .update-item {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-home .update-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.page-home .update-item h3 {
  margin: 0;
  font-size: clamp(16px, 1.8vw, 19px);
  font-weight: 800;
  line-height: 1.4;
  color: var(--white);
}

.page-home .update-item p {
  margin: 0;
  max-width: 62ch;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 06 联系条 ---------- */
.page-home .contact-band {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 30px);
  padding: clamp(24px, 3.4vw, 42px);
  background: var(--paper);
  color: var(--ink);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 26px), calc(100% - 26px) 100%, 0 100%);
}

.page-home .contact-title {
  margin: 0 0 10px;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(21px, 2.6vw, 30px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.page-home .contact-copy p {
  margin: 0;
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--home-paper-soft);
}

.page-home .contact-facts {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .contact-facts li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  font-size: 13px;
  line-height: 1.6;
}

.page-home .fact-k {
  flex: 0 0 64px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--home-paper-soft);
}

.page-home .fact-v {
  color: var(--ink);
  font-weight: 500;
  word-break: break-word;
}

.page-home .contact-cta {
  justify-self: start;
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-home .hero-entries {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-home .entry-card:nth-child(1) { --shift: 0px; }
  .page-home .entry-card:nth-child(2) { --shift: 30px; }
  .page-home .entry-card:nth-child(3) { --shift: -14px; }
  .page-home .entry-card:nth-child(4) { --shift: 16px; }

  .page-home .update-item {
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 4px 22px;
    align-items: baseline;
  }

  .page-home .update-tag {
    grid-row: 1 / span 2;
    align-self: start;
    padding-top: 6px;
  }
}

@media (min-width: 860px) {
  .page-home .hero-stage {
    grid-template-columns: 108px minmax(0, 1fr);
    align-items: start;
  }

  .page-home .hero-index {
    flex-direction: column;
    gap: 26px;
    padding: 0 16px 0 0;
    border-bottom: 0;
    border-right: 1px solid var(--line);
  }

  .page-home .hero-index li {
    flex-direction: column;
    gap: 2px;
  }

  .page-home .idx-label {
    font-size: 12px;
  }

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

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

@media (min-width: 900px) {
  .page-home .lanes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(28px, 4vw, 60px);
  }

  .page-home .lanes::before {
    content: "";
    position: absolute;
    top: 6%;
    bottom: 6%;
    left: 50%;
    width: 2px;
    background: linear-gradient(180deg, transparent, rgba(127, 227, 224, 0.55) 32%, rgba(127, 227, 224, 0.55) 68%, transparent);
    transform: skewX(-7deg);
    pointer-events: none;
  }

  .page-home .lane--red {
    transform: translateX(-24px);
  }

  .page-home .step-layout {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-home .contact-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    align-items: center;
  }

  .page-home .contact-cta {
    grid-column: 1 / -1;
  }
}

@media (min-width: 1100px) {
  .page-home .contact-band {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr) auto;
  }

  .page-home .contact-cta {
    grid-column: auto;
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry-card,
  .page-home .entry-more,
  .page-home .lane-row,
  .page-home .hero-status .fold-icon {
    transition: none;
  }
}
<<<END>>>