.page-home {
  --home-surface: #ffffff;
  --home-line: var(--blue-light);
  background:
    radial-gradient(120% 70% at 92% 0%, rgba(169, 207, 230, 0.38), transparent 62%),
    linear-gradient(168deg, var(--paper) 0%, var(--paper-cool) 52%, var(--paper) 100%);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.85;
  letter-spacing: 0.01em;
}

.page-home a:focus-visible,
.page-home button:focus-visible,
.page-home [tabindex="0"]:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 2px;
}

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

.page-home .media-frame {
  margin: 0;
  overflow: hidden;
  background: var(--home-surface);
  border: 1px solid var(--home-line);
  border-radius: var(--radius-lg);
}

.page-home .media-caption {
  padding: 10px 16px 12px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--rock-grey);
}

/* 上下文 */
.page-home .home-context {
  max-width: var(--w);
  margin: 0 auto;
  padding: 20px var(--gutter) 0;
}

.page-home .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--rock-grey);
}

/* 首屏 */
.page-home .hero-band {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--home-line);
  background: linear-gradient(135deg, rgba(250, 247, 242, 0) 0%, rgba(169, 207, 230, 0.24) 100%);
}

.page-home .home-hero {
  display: grid;
  gap: 30px;
  padding-top: 26px;
  padding-bottom: 46px;
}

.page-home .hero-steps .display-title {
  margin: 6px 0 10px;
}

.page-home .hero-steps .lede {
  margin: 0;
  max-width: 32ch;
  font-size: 16px;
  color: var(--rock);
}

.page-home .rail-steps {
  list-style: none;
  margin: 22px 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .step {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 14px;
  align-items: start;
  padding: 12px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease), box-shadow 160ms var(--ease);
}

.page-home .step.is-current {
  background: rgba(255, 255, 255, 0.88);
  border-color: var(--home-line);
  box-shadow: var(--shadow-card);
}

.page-home .step-node {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--home-line);
  border-radius: var(--radius-pill);
  background: var(--home-surface);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-home .step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--blue-deep);
}

.page-home .step.is-current .step-node {
  background: var(--wolfberry-soft);
  border-color: var(--wolfberry);
  transform: translateY(-2px);
}

.page-home .step.is-current .step-num {
  color: var(--rock);
}

.page-home .step-title {
  margin: 0 0 2px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--blue-deep);
}

.page-home .step-text {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--rock-grey);
}

.page-home .hero-steps .btn {
  margin-top: 4px;
}

.page-home .hero-devices {
  display: grid;
  gap: 16px;
}

.page-home .device-top {
  box-shadow: var(--shadow-float);
}

.page-home .device-top img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .device-bottom {
  width: min(300px, 76%);
  margin-left: auto;
  border-radius: 30px;
  box-shadow: var(--shadow-float);
}

.page-home .device-bottom img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 区块基座 */
.page-home .section {
  padding: 54px 0;
}

.page-home .section-head {
  max-width: 60ch;
  margin-bottom: 26px;
}

.page-home .section-head .display-title {
  margin: 8px 0 12px;
}

.page-home .section-head .lede {
  margin: 0;
  font-size: 16px;
  color: var(--rock);
}

/* 版本对照 */
.page-home .version-compare {
  display: grid;
  gap: 24px;
}

.page-home .version-controls {
  display: grid;
  gap: 16px;
  align-content: start;
}

.page-home .segmented {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.72);
  width: fit-content;
}

.page-home .segmented-btn {
  min-height: 44px;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  background: transparent;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.05em;
  color: var(--blue-deep);
  cursor: pointer;
  transition: background 160ms var(--ease), transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .segmented-btn:hover {
  transform: translateY(-2px);
  border-color: var(--home-line);
}

.page-home .segmented-btn[aria-selected="true"] {
  background: var(--wolfberry-soft);
  border-color: var(--wolfberry);
  color: var(--rock);
}

.page-home .segmented-panel {
  padding: 22px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-lg);
  background: var(--home-surface);
  box-shadow: var(--shadow-card);
}

.page-home .segmented-panel h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--blue-deep);
}

.page-home .segmented-panel ul {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
  font-size: 15px;
  color: var(--rock);
}

.page-home .version-figure {
  background: var(--blue-mist);
}

.page-home .version-figure img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* 收藏速查 */
.page-home .quick-layout {
  display: grid;
  gap: 26px;
  align-items: center;
}

.page-home .quick-copy .display-title {
  margin: 8px 0 0;
}

.page-home .quick-list {
  list-style: none;
  margin: 22px 0 24px;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .quick-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 16px 18px;
  border: 1px solid var(--home-line);
  border-left: 3px solid var(--wolfberry);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.8);
}

.page-home .quick-item .mono-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--wolfberry);
}

.page-home .quick-item h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-deep);
}

.page-home .quick-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--rock-grey);
}

/* 沙丘分隔带 */
.page-home .dune-band {
  margin: 0;
  height: clamp(86px, 13vw, 150px);
  overflow: hidden;
  background: linear-gradient(180deg, var(--paper) 0%, var(--paper-cool) 100%);
  clip-path: polygon(0 28%, 100% 2%, 100% 100%, 0 100%);
}

.page-home .dune-band img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.5;
}

/* 更新说明 */
.page-home .updates {
  background: linear-gradient(180deg, var(--paper-cool) 0%, var(--paper) 72%);
}

.page-home .update-log {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
}

.page-home .update-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: start;
  padding: 18px 20px;
  border: 1px solid rgba(169, 207, 230, 0.9);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.84);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .update-item:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
}

.page-home .update-item .mono-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--rock);
  background: var(--blue-mist);
  border-radius: var(--radius-pill);
  padding: 3px 10px;
}

.page-home .update-item h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 700;
  color: var(--blue-deep);
}

.page-home .update-item p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--rock-grey);
}

.page-home .update-foot {
  margin-top: 24px;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.page-home .update-foot .section-note {
  margin: 0;
  max-width: 46ch;
  font-size: 13.5px;
  color: var(--rock-grey);
}

/* 三大板块 */
.page-home .pillar-grid {
  display: grid;
  gap: 16px;
}

.page-home .pillar {
  padding: 24px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-lg);
  background: var(--home-surface);
  box-shadow: var(--shadow-card);
}

.page-home .pillar .mono-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--wolfberry);
}

.page-home .pillar h3 {
  margin: 8px 0 10px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--blue-deep);
}

.page-home .pillar p {
  margin: 0 0 10px;
  font-size: 15px;
  color: var(--ink);
}

.page-home .pillar .pillar-note {
  margin: 0;
  font-size: 13.5px;
  color: var(--rock-grey);
}

.page-home .pillar-link {
  margin-top: 24px;
}

/* 路径卡片带 */
.page-home .card-rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding-left: 4px;
  -webkit-overflow-scrolling: touch;
  padding: 4px 4px 14px;
}

.page-home .rail-card {
  flex: 0 0 84%;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 22px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-lg);
  background: var(--home-surface);
  box-shadow: var(--shadow-card);
  transition: transform 160ms var(--ease), border-color 160ms var(--ease);
}

.page-home .rail-card:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
}

.page-home .rail-card .pill-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--rock);
  background: var(--wolfberry-soft);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}

.page-home .rail-card h3 {
  margin: 12px 0 8px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  color: var(--blue-deep);
}

.page-home .rail-card p {
  margin: 0 0 16px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--rock-grey);
}

.page-home .rail-card .btn {
  margin-top: auto;
}

.page-home .rail-hint {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--rock-grey);
}

/* 收尾 */
.page-home .closing {
  padding-bottom: 72px;
}

.page-home .closing-inner {
  display: grid;
  gap: 24px;
}

.page-home .closing-text p {
  margin: 10px 0 0;
  max-width: 56ch;
  font-size: 15.5px;
  line-height: 1.9;
  color: var(--rock);
}

.page-home .closing-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  align-content: start;
}

.page-home .closing-links a {
  display: block;
  min-height: 44px;
  padding: 13px 18px;
  border: 1px solid var(--home-line);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.82);
  font-size: 15px;
  color: var(--blue-deep);
  text-decoration: none;
  transition: transform 160ms var(--ease), border-color 160ms var(--ease), background 160ms var(--ease);
}

.page-home .closing-links a:hover {
  transform: translateY(-2px);
  border-color: var(--blue);
  background: var(--home-surface);
}

/* 桌面端 */
@media (min-width: 900px) {
  .page-home .home-hero {
    grid-template-columns: 5fr 7fr;
    gap: 56px;
    align-items: start;
    padding-top: 48px;
    padding-bottom: 88px;
  }

  .page-home .hero-devices {
    position: relative;
    padding-bottom: 8px;
  }

  .page-home .device-top {
    width: 88%;
    margin: 0;
  }

  .page-home .device-bottom {
    position: relative;
    z-index: 2;
    width: 42%;
    margin: -110px 0 0 auto;
  }

  .page-home .section {
    padding: 84px 0;
  }

  .page-home .closing {
    padding-bottom: 96px;
  }

  .page-home .quick-item,
  .page-home .update-item {
    padding: 20px 22px;
  }
}

@media (min-width: 920px) {
  .page-home .quick-layout {
    grid-template-columns: 7fr 5fr;
    gap: 44px;
  }

  .page-home .closing-inner {
    grid-template-columns: 6fr 5fr;
    gap: 48px;
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-home .version-compare {
    grid-template-columns: 1.02fr 0.98fr;
    gap: 40px;
    align-items: start;
  }

  .page-home .rail-card {
    flex: 0 0 31%;
  }
}

@media (min-width: 880px) {
  .page-home .pillar-grid {
    grid-template-columns: repeat(12, 1fr);
    gap: 18px;
  }

  .page-home .pillar:nth-child(1) {
    grid-column: 1 / span 7;
  }

  .page-home .pillar:nth-child(2) {
    grid-column: 8 / span 5;
    margin-top: 44px;
    background: var(--blue-mist);
  }

  .page-home .pillar:nth-child(3) {
    grid-column: 5 / span 7;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .step,
  .page-home .step-node,
  .page-home .segmented-btn,
  .page-home .update-item,
  .page-home .rail-card,
  .page-home .closing-links a {
    transition: none;
  }

  .page-home .step.is-current .step-node,
  .page-home .rail-card:hover,
  .page-home .update-item:hover,
  .page-home .closing-links a:hover,
  .page-home .segmented-btn:hover {
    transform: none;
  }
}