.page-home {
  --home-ring: rgba(34, 230, 230, .3);
  background: var(--fg-void);
  color: var(--fg-ice);
  overflow-x: hidden;
}

/* ---------- 首屏放射聚焦 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  place-items: center;
  min-height: min(88vh, 820px);
  padding: clamp(76px, 13vh, 150px) 0 clamp(64px, 10vh, 112px);
  border-bottom: 1px solid var(--fg-line);
}

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

.page-home .hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .32;
  filter: saturate(.92) contrast(1.06);
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 50% 40%, rgba(108, 43, 217, .58), rgba(5, 4, 10, .86) 56%, var(--fg-void) 80%),
    linear-gradient(180deg, rgba(5, 4, 10, .7), rgba(5, 4, 10, .2) 40%, var(--fg-void));
}

.page-home .hero__rings {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: grid;
  place-items: center;
  pointer-events: none;
}

.page-home .hero__rings span {
  position: absolute;
  border: 1px solid var(--home-ring);
  border-radius: 50%;
  animation: home-ring-in 780ms cubic-bezier(.16, .84, .3, 1) both;
}

.page-home .hero__rings span:nth-child(1) {
  width: 300px;
  height: 300px;
}

.page-home .hero__rings span:nth-child(2) {
  width: 540px;
  height: 540px;
  opacity: .6;
  animation-delay: 120ms;
}

.page-home .hero__rings span:nth-child(3) {
  width: 800px;
  height: 800px;
  opacity: .3;
  animation-delay: 240ms;
}

@keyframes home-ring-in {
  from { transform: scale(.62); opacity: 0; }
  to { transform: scale(1); }
}

.page-home .hero__inner {
  position: relative;
  z-index: 3;
  display: grid;
  justify-items: center;
  gap: 18px;
  text-align: center;
}

.page-home .hero__coord {
  display: inline-block;
  margin: 0;
  padding: 7px 14px;
  border: 1px solid var(--fg-line-strong);
  background: rgba(18, 16, 31, .7);
  color: var(--fg-cyan);
  font-size: 13px;
}

.page-home .hero__title {
  margin: 0;
  font-size: clamp(38px, 7.2vw, 86px);
  line-height: 1.02;
  letter-spacing: -.01em;
  max-width: 16ch;
}

.page-home .hero__lead {
  margin: 0;
  max-width: 34ch;
  color: var(--fg-ice);
}

.page-home .hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 6px;
}

.page-home .btn--hero {
  padding: 16px 30px;
  font-size: 18px;
  letter-spacing: .02em;
  border-width: 4px;
}

.page-home .hero__orbit {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: clamp(26px, 4vw, 42px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .orbit-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  padding: 9px 14px;
  border: 2px solid var(--fg-line-strong);
  background: rgba(18, 16, 31, .74);
  color: var(--fg-ice);
  font-size: 14px;
  text-decoration: none;
  transition: border-color .22s ease, transform .22s ease;
}

.page-home .orbit-chip strong {
  font-family: var(--fg-font-index);
  font-size: 15px;
  color: var(--fg-cyan);
}

.page-home .orbit-chip:hover,
.page-home .orbit-chip:focus-visible {
  border-color: var(--fg-cyan);
  transform: translateY(-2px);
}

/* ---------- 斜切分隔带 ---------- */
.page-home .slice-band {
  position: relative;
  height: 56px;
  background: var(--fg-night);
  clip-path: polygon(0 30%, 100% 0, 100% 70%, 0 100%);
}

.page-home .slice-band__line {
  position: absolute;
  left: 0;
  right: 0;
  top: 48%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--fg-pink) 30%, var(--fg-cyan) 70%, transparent);
}

/* ---------- 双端分流 ---------- */
.page-home .section {
  padding: clamp(56px, 8vw, 104px) 0;
}

.page-home .scene {
  padding-top: clamp(40px, 6vw, 76px);
}

.page-home .scene .filterbar {
  margin: 0 0 clamp(20px, 3vw, 32px);
}

.page-home .scene-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 3vw, 32px);
}

.page-home .scene-card {
  position: relative;
  padding: clamp(18px, 2.6vw, 30px);
  background: var(--fg-night);
  border: 4px solid var(--fg-line-strong);
}

.page-home .scene-card--home {
  border-color: rgba(34, 230, 230, .62);
  box-shadow: 8px 8px 0 rgba(34, 230, 230, .18);
}

.page-home .scene-card--ent {
  border-color: rgba(255, 106, 26, .62);
  box-shadow: 8px 8px 0 rgba(255, 106, 26, .2);
}

.page-home .scene-card__tag {
  display: inline-block;
  margin: 0 0 12px;
  padding: 5px 12px;
  background: var(--fg-pink);
  color: var(--fg-void);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-home .scene-card--ent .scene-card__tag {
  background: var(--fg-orange);
}

.page-home .scene-card__title {
  margin: 0 0 16px;
  font-size: clamp(24px, 3.4vw, 34px);
  line-height: 1.15;
}

.page-home .scene-card__media {
  margin: 0 0 18px;
  border: 2px solid var(--fg-line);
}

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

.page-home .scene-card__text {
  margin: 0 0 16px;
  color: var(--fg-ice);
}

.page-home .scene-card__list {
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-home .scene-card__list li {
  position: relative;
  padding-left: 20px;
  color: var(--fg-mist);
  line-height: 1.65;
}

.page-home .scene-card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 9px;
  height: 9px;
  background: var(--fg-cyan);
}

.page-home .scene-card--ent .scene-card__list li::before {
  background: var(--fg-ember);
}

.page-home .scene-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

/* ---------- 内容库索引 ---------- */
.page-home .lib-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--fg-line);
}

.page-home .lib-row {
  position: relative;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 4px 16px;
  padding: 18px 12px 18px 14px;
  border-bottom: 1px solid var(--fg-line);
  color: var(--fg-ice);
  text-decoration: none;
  transition: transform .25s ease, background-color .25s ease;
}

.page-home .lib-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--fg-cyan);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .3s ease;
}

.page-home .lib-row:hover,
.page-home .lib-row:focus-visible {
  transform: translateX(4px);
  background: rgba(34, 230, 230, .07);
}

.page-home .lib-row:hover::before,
.page-home .lib-row:focus-visible::before {
  transform: scaleY(1);
}

.page-home .lib-row__idx {
  color: var(--fg-cyan);
  font-size: 14px;
  letter-spacing: .08em;
}

.page-home .lib-row__body {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  align-items: baseline;
  min-width: 0;
}

.page-home .lib-row__name {
  font-size: 18px;
  font-weight: 700;
}

.page-home .lib-row__note {
  color: var(--fg-mist);
  font-size: 14px;
}

.page-home .lib-row__meta {
  grid-column: 2;
  color: var(--fg-ember);
  font-size: 13px;
  letter-spacing: .06em;
}

.page-home .lib-foot {
  margin: 26px 0 0;
}

/* ---------- 版本摘要 ---------- */
.page-home .ver__figure {
  margin: clamp(26px, 4vw, 40px) 0 0;
  border: 3px solid var(--fg-line-strong);
  box-shadow: var(--fg-shadow-hard);
}

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

.page-home .ver-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: clamp(26px, 4vw, 42px);
}

.page-home .ver-card {
  padding: 22px 20px 24px;
  background: var(--fg-night);
  border: 3px solid var(--fg-line-strong);
  border-top: 5px solid var(--fg-purple);
}

.page-home .ver-card--home {
  border-top-color: var(--fg-cyan);
}

.page-home .ver-card--ent {
  border-top-color: var(--fg-orange);
}

.page-home .ver-card__tag {
  margin: 0;
  color: var(--fg-mist);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-home .ver-card__num {
  margin: 8px 0 12px;
  font-family: var(--fg-font-display);
  font-weight: 900;
  font-size: clamp(32px, 4.4vw, 46px);
  line-height: 1;
  color: var(--fg-cyan);
}

.page-home .ver-card--ent .ver-card__num {
  color: var(--fg-ember);
}

.page-home .ver-card__text {
  margin: 0 0 16px;
  color: var(--fg-ice);
}

.page-home .ver-card__link {
  color: var(--fg-ice);
  font-size: 14px;
  text-decoration: none;
  border-bottom: 2px solid var(--fg-pink);
  padding-bottom: 2px;
}

.page-home .ver-card__link:hover {
  color: var(--fg-cyan);
}

.page-home .ver__foot {
  margin: 28px 0 0;
}

/* ---------- 上手四步 ---------- */
.page-home .steps {
  margin: clamp(26px, 4vw, 40px) 0 0;
  padding: 0 0 0 10px;
  list-style: none;
}

.page-home .step {
  position: relative;
  padding: 0 0 30px 40px;
  border-left: 1px solid var(--fg-line-strong);
}

.page-home .step--last {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-home .step::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 3px;
  width: 15px;
  height: 15px;
  background: var(--fg-void);
  border: 3px solid var(--fg-cyan);
}

.page-home .step:nth-child(2)::before { border-color: var(--fg-violet); }
.page-home .step:nth-child(3)::before { border-color: var(--fg-pink); }
.page-home .step:nth-child(4)::before { border-color: var(--fg-orange); }

.page-home .step__no {
  margin: 0 0 6px;
  color: var(--fg-cyan);
  font-size: 12px;
  letter-spacing: .12em;
}

.page-home .step__title {
  margin: 0 0 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--fg-ice);
}

.page-home .step__text {
  margin: 0;
  color: var(--fg-mist);
  max-width: 46ch;
}

.page-home .steps__foot {
  margin: clamp(26px, 4vw, 38px) 0 0;
  padding: 16px 18px;
  border-left: 4px solid var(--fg-pink);
  background: rgba(255, 46, 136, .08);
  color: var(--fg-ice);
}

.page-home .steps__foot a {
  color: var(--fg-cyan);
}

/* ---------- 运行状态 ---------- */
.page-home .status {
  padding-bottom: clamp(64px, 9vw, 120px);
}

.page-home .stat-strip {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(26px, 4vw, 40px) 0 0;
  background: var(--fg-line);
  border: 1px solid var(--fg-line);
}

.page-home .stat {
  padding: 20px 16px 22px;
  background: var(--fg-void);
}

.page-home .stat dt {
  color: var(--fg-mist);
  font-size: 13px;
  letter-spacing: .06em;
}

.page-home .stat dd {
  margin: 8px 0 0;
  color: var(--fg-ice);
  font-size: 14px;
  line-height: 1.6;
}

.page-home .stat-num {
  display: inline-block;
  margin-right: 4px;
  font-family: var(--fg-font-display);
  font-weight: 900;
  font-size: clamp(30px, 4.2vw, 44px);
  line-height: 1;
  color: var(--fg-cyan);
}

.page-home .status-foot {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: 24px;
  border: 1px solid var(--fg-line);
  background: var(--fg-line);
}

.page-home .status-foot__cell {
  margin: 0;
  padding: 14px 16px;
  background: var(--fg-night);
  color: var(--fg-ice);
  font-size: 14px;
}

.page-home .status-foot__cell .mono {
  display: inline-block;
  min-width: 78px;
  margin-right: 10px;
  color: var(--fg-cyan);
  font-size: 12px;
  letter-spacing: .1em;
}

.page-home .status-links {
  margin: 22px 0 0;
  color: var(--fg-mist);
  font-size: 14px;
}

.page-home .status-links a {
  color: var(--fg-ice);
  border-bottom: 1px solid var(--fg-cyan);
  text-decoration: none;
}

.page-home .status-links a:hover {
  color: var(--fg-cyan);
}

/* ---------- 响应式 ---------- */
@media (min-width: 700px) {
  .page-home .lib-row {
    grid-template-columns: 56px minmax(0, 1fr) 130px;
    align-items: baseline;
    padding: 20px 16px 20px 18px;
  }

  .page-home .lib-row__meta {
    grid-column: 3;
    text-align: right;
  }

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

@media (min-width: 900px) {
  .page-home .scene-grid {
    grid-template-columns: 1.12fr .88fr;
    align-items: start;
  }

  .page-home .scene-card--ent {
    margin-top: 54px;
  }

  .page-home .ver-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
  }

  .page-home .ver-card:nth-child(2) {
    margin-top: 38px;
  }

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

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

  .page-home .steps {
    padding-left: 0;
  }
}

@media (min-width: 1100px) {
  .page-home .steps {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 40px;
  }

  .page-home .step {
    padding-bottom: 34px;
  }

  .page-home .step:nth-child(2) {
    border-left-color: transparent;
    padding-bottom: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .hero__rings span {
    animation: none;
  }

  .page-home .lib-row,
  .page-home .orbit-chip {
    transition: none;
  }
}