.page-home {
  display: block;
  color: var(--c-text);
  font-family: var(--font-sans);
  background: var(--c-base);
}

.page-home .shell {
  width: min(100% - var(--gutter) * 2, var(--shell-max));
  margin-inline: auto;
}

/* ---------- 页面上下文条 ---------- */
.page-home .ctx {
  border-bottom: 1px solid var(--c-line);
  background: var(--c-panel);
}

.page-home .ctx__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 16px;
  align-items: center;
  justify-content: space-between;
  padding-block: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .06em;
  color: var(--c-muted);
}

.page-home .ctx__path {
  color: var(--c-text);
}

.page-home .ctx__meta {
  color: var(--c-lime);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(40px, 9vw, 88px) clamp(48px, 10vw, 104px);
  border-bottom: 1px solid var(--c-line);
  background: var(--c-base);
}

.page-home .hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: .26;
}

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

.page-home .hero__slab {
  position: absolute;
  z-index: 1;
  display: block;
  pointer-events: none;
}

.page-home .hero__slab--orange {
  top: -18%;
  left: -30%;
  width: 86%;
  height: 62%;
  background: linear-gradient(150deg, rgba(255, 106, 43, .92) 0%, rgba(255, 106, 43, 0) 74%);
  clip-path: polygon(0 0, 100% 0, 56% 100%, 0 100%);
}

.page-home .hero__slab--cyan {
  right: -32%;
  bottom: -24%;
  width: 82%;
  height: 64%;
  background: linear-gradient(330deg, rgba(34, 211, 224, .82) 0%, rgba(34, 211, 224, 0) 72%);
  clip-path: polygon(44% 0, 100% 0, 100% 100%, 0 100%);
}

.page-home .hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  gap: 30px;
}

.page-home .hero__eyebrow {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-lime);
}

.page-home .hero h1 {
  margin: 0 0 16px;
  font-size: clamp(40px, 11vw, 76px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--c-text);
  text-shadow: 0 12px 40px rgba(11, 18, 32, .8);
}

.page-home .hero__lead {
  margin: 0;
  max-width: 34em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-text);
  text-shadow: 0 6px 24px rgba(11, 18, 32, .85);
}

.page-home .hero__actions {
  margin-top: 22px;
  align-items: center;
}

.page-home .hero__anchor {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(34, 211, 224, .45);
  padding-bottom: 2px;
}

.page-home .hero__anchor:hover,
.page-home .hero__anchor:focus-visible {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

.page-home .hero__facts {
  display: grid;
  gap: 1px;
  grid-template-columns: 1fr;
  margin: 30px 0 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-line);
}

.page-home .hero__fact {
  padding: 12px 14px;
  background: rgba(20, 30, 51, .9);
}

.page-home .hero__fact dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-muted);
  margin-bottom: 4px;
}

.page-home .hero__fact dd {
  margin: 0;
  font-size: 14px;
  color: var(--c-text);
}

.page-home .hero__num {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--c-orange);
}

/* 首屏侧挂件面板 */
.page-home .hero__side {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(20, 30, 51, .92);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-home .hero__side-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--c-line);
}

.page-home .hero__side-title {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-home .hero__dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--c-lime);
  box-shadow: 0 0 0 4px rgba(200, 255, 61, .16);
  vertical-align: middle;
}

.page-home .hero__side-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  border-bottom: 1px solid var(--c-line);
}

.page-home .hero__side-list {
  list-style: none;
  margin: 0;
  padding: 6px 0;
}

.page-home .hero__side-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 16px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--c-muted);
}

.page-home .hero__idx {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-cyan);
}

/* ---------- 章节标题 ---------- */
.page-home .sec-head {
  display: grid;
  gap: 10px;
  margin-bottom: 22px;
  max-width: 44em;
}

.page-home .sec-head__no {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-cyan);
}

.page-home .sec-head__title {
  margin: 0;
  font-size: clamp(24px, 6vw, 34px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
}

.page-home .sec-head__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 四块常用面板 ---------- */
.page-home .panels {
  padding-block: clamp(44px, 9vw, 84px);
  border-bottom: 1px solid var(--c-line);
}

.page-home .panels__grid {
  display: grid;
  gap: clamp(12px, 1.8vw, 20px);
  grid-template-columns: 1fr;
}

.page-home .entry {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(18px, 3vw, 26px);
  text-decoration: none;
  color: inherit;
  transition: border-color .22s var(--ease), transform .22s var(--ease), box-shadow .22s var(--ease);
}

.page-home .entry:hover,
.page-home .entry:focus-visible {
  border-color: var(--c-cyan);
  transform: translateY(-4px);
  box-shadow: 0 24px 48px -30px rgba(34, 211, 224, .55);
}

.page-home .entry:active {
  transform: translateY(-1px);
}

.page-home .entry__bar {
  display: block;
  height: 3px;
  border-radius: 2px;
  margin-bottom: 4px;
}

.page-home .entry__no {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-home .entry__title {
  margin: 0;
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 800;
  letter-spacing: -.015em;
}

.page-home .entry__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-home .entry__cue {
  margin-top: auto;
  padding-top: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--c-orange);
}

.page-home .entry:hover .entry__cue,
.page-home .entry:focus-visible .entry__cue {
  color: var(--c-lime);
}

.page-home .entry--dl {
  background-image: linear-gradient(180deg, rgba(255, 106, 43, .12) 0%, rgba(255, 106, 43, 0) 46%);
}

.page-home .entry__media {
  margin: 4px 0 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--c-base);
}

.page-home .entry__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .entry__tags {
  gap: 8px;
  margin-top: 2px;
}

.page-home .notice-list {
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .notice-list li {
  display: flex;
  gap: 9px;
  align-items: baseline;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-muted);
}

.page-home .notice-list__dot {
  flex: none;
  width: 6px;
  height: 6px;
  margin-top: 6px;
  border-radius: 50%;
  background: var(--c-lime);
}

.page-home .stat-list {
  margin: 6px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--c-line);
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-home .stat-row {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 12px;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 13px;
  background: var(--c-panel);
}

.page-home .stat-row dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--c-muted);
}

.page-home .stat-row dd {
  margin: 0;
  font-size: 14px;
  color: var(--c-text);
}

/* ---------- 叙事段 ---------- */
.page-home .story {
  padding-block: clamp(48px, 10vw, 96px);
  border-bottom: 1px solid var(--c-line);
  background:
    radial-gradient(120% 80% at 88% 8%, rgba(34, 211, 224, .12) 0%, rgba(34, 211, 224, 0) 60%),
    var(--c-base);
}

.page-home .story__inner {
  display: grid;
  gap: 28px;
}

.page-home .story__fig {
  margin: 0;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-panel);
  box-shadow: var(--shadow-panel);
}

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

.page-home .story__body .lead {
  margin: 0 0 10px;
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--c-orange);
}

.page-home .story__title {
  margin: 0 0 14px;
  font-size: clamp(22px, 5.4vw, 32px);
  font-weight: 800;
  line-height: 1.24;
  letter-spacing: -.02em;
}

.page-home .story__text {
  margin: 0 0 20px;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-home .story__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .story__list li {
  padding-left: 16px;
  border-left: 2px solid var(--c-line);
}

.page-home .story__list strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: 700;
  color: var(--c-text);
}

.page-home .story__list span {
  display: block;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

/* ---------- 最近修订 ---------- */
.page-home .revision {
  padding-block: clamp(44px, 9vw, 84px);
  border-bottom: 1px solid var(--c-line);
}

.page-home .revision__panel {
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: var(--c-panel);
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

.page-home .revision__top {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 14px;
  align-items: center;
  padding: 13px 16px;
  background: var(--grad);
  color: #0B1220;
}

.page-home .revision__pinned {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .12em;
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(11, 18, 32, .82);
  color: var(--c-lime);
}

.page-home .revision__date {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .05em;
  font-weight: 700;
}

.page-home .revision__list {
  border: 0;
  border-radius: 0;
}

.page-home .revision__foot {
  padding: 16px;
  border-top: 1px solid var(--c-line);
}

/* ---------- 索引用法 ---------- */
.page-home .guide {
  padding-block: clamp(44px, 9vw, 84px);
  border-bottom: 1px solid var(--c-line);
  background:
    radial-gradient(90% 70% at 6% 4%, rgba(255, 106, 43, .1) 0%, rgba(255, 106, 43, 0) 62%),
    var(--c-base);
}

.page-home .guide__grid {
  display: grid;
  gap: 20px;
}

.page-home .groups {
  display: grid;
  gap: 10px;
  grid-template-columns: 1fr;
}

.page-home .group {
  padding: 14px 16px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius-sm);
  background: var(--c-panel);
  transition: border-color .22s var(--ease);
}

.page-home .group:hover {
  border-color: var(--c-cyan);
}

.page-home .group__no {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--c-cyan);
}

.page-home .group__name {
  margin: 0 0 4px;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
}

.page-home .group__meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.65;
  color: var(--c-muted);
}

.page-home .guide__aside {
  padding: 20px;
  border: 1px solid var(--c-line);
  border-radius: var(--radius);
  background: rgba(14, 74, 82, .32);
  align-self: start;
}

.page-home .guide__aside-title {
  margin: 0 0 14px;
  font-size: 17px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-home .guide__steps {
  margin: 0 0 14px;
  padding-left: 20px;
  display: grid;
  gap: 10px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-text);
}

.page-home .guide__steps li::marker {
  font-family: var(--font-mono);
  color: var(--c-cyan);
}

.page-home .guide__note {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--c-muted);
}

.page-home .guide__cta {
  width: 100%;
  justify-content: center;
}

/* ---------- 三步起点 ---------- */
.page-home .steps {
  padding-block: clamp(48px, 9vw, 88px) clamp(56px, 10vw, 104px);
}

.page-home .steps__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 12px;
  counter-reset: step;
}

.page-home .step {
  position: relative;
  padding: 20px 20px 20px 22px;
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-orange);
  border-radius: var(--radius-sm);
  background: var(--c-panel);
}

.page-home .step__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--c-orange);
}

.page-home .step__title {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.015em;
}

.page-home .step__text {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--c-muted);
}

.page-home .steps__foot {
  margin: 22px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-muted);
}

.page-home .steps__foot a {
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34, 211, 224, .4);
}

.page-home .steps__foot a:hover,
.page-home .steps__foot a:focus-visible {
  color: var(--c-lime);
  border-bottom-color: var(--c-lime);
}

/* ---------- 响应式 ---------- */
@media (min-width: 560px) {
  .page-home .hero__facts {
    grid-template-columns: repeat(3, 1fr);
  }

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

@media (min-width: 800px) {
  .page-home .hero {
    padding-block: clamp(64px, 8vw, 104px) clamp(72px, 9vw, 120px);
  }

  .page-home .hero__slab--orange {
    top: -26%;
    left: -18%;
    width: 66%;
    height: 74%;
  }

  .page-home .hero__slab--cyan {
    right: -20%;
    bottom: -30%;
    width: 60%;
    height: 78%;
  }

  .page-home .hero__inner {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 40px;
    align-items: end;
  }

  .page-home .hero__side {
    transform: translateY(-18px);
  }

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

  .page-home .entry--dl {
    grid-column: span 7;
  }

  .page-home .entry--notice {
    grid-column: span 5;
  }

  .page-home .entry--index {
    grid-column: span 5;
  }

  .page-home .entry--stat {
    grid-column: span 7;
  }

  .page-home .story__inner {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 44px;
    align-items: center;
  }

  .page-home .story__fig {
    transform: translateY(-26px);
  }

  .page-home .guide__grid {
    grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
    gap: 24px;
  }

  .page-home .steps__list {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .steps__list .step:nth-child(2) {
    transform: translateY(20px);
  }

  .page-home .steps__list .step:nth-child(3) {
    transform: translateY(40px);
  }

  .page-home .steps__foot {
    margin-top: 70px;
  }
}

@media (min-width: 1000px) {
  .page-home .groups {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-home .hero__lead {
    font-size: 17px;
  }

  .page-home .story__text,
  .page-home .sec-head__text {
    font-size: 16px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .entry,
  .page-home .group,
  .page-home .hero__side {
    transition: none;
    transform: none;
  }

  .page-home .entry:hover,
  .page-home .entry:focus-visible {
    transform: none;
  }
}