.page-home {
  --home-line: 2px solid rgba(122, 92, 18, .85);
  --home-line-soft: 1px solid rgba(122, 92, 18, .45);
  --home-glow-cyan: rgba(55, 224, 200, .16);
  --home-glow-gold: rgba(242, 194, 75, .14);
  --home-card-shadow: 0 8px 0 -3px rgba(0, 0, 0, .6), 0 16px 30px rgba(0, 0, 0, .45);
  overflow-x: hidden;
}

/* 顶部上下文 */
.page-home .home-ctx {
  padding-top: 20px;
  padding-bottom: 10px;
}

.page-home .ctx-line {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-home .ctx-dot {
  width: 7px;
  height: 7px;
  flex: none;
  background: var(--cyan);
  box-shadow: 0 0 0 4px rgba(55, 224, 200, .12);
}

/* 框景首屏 */
.page-home .hero {
  padding-top: 4px;
}

.page-home .hero-frame {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: 520px;
  background: var(--ink-1);
  border: var(--home-line);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
  isolation: isolate;
}

.page-home .hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  z-index: 0;
}

.page-home .hero-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(120% 90% at 12% 0%, var(--home-glow-cyan), transparent 58%),
    radial-gradient(90% 80% at 92% 108%, var(--home-glow-gold), transparent 55%),
    linear-gradient(180deg, rgba(6, 18, 15, .22) 0%, rgba(6, 18, 15, .84) 70%, var(--ink-0) 100%);
}

.page-home .hero-frame::after {
  content: "";
  position: absolute;
  inset: 12px;
  z-index: 3;
  pointer-events: none;
  opacity: .85;
  background:
    linear-gradient(var(--cyan), var(--cyan)) 0 0 / 18px 2px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 0 0 / 2px 18px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 100% 0 / 18px 2px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 100% 0 / 2px 18px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 0 100% / 18px 2px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 0 100% / 2px 18px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 100% 100% / 18px 2px no-repeat,
    linear-gradient(var(--cyan), var(--cyan)) 100% 100% / 2px 18px no-repeat;
}

.page-home .hero-inner {
  position: relative;
  z-index: 2;
  padding: clamp(24px, 5vw, 60px);
  max-width: 680px;
}

.page-home .home-h1 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(30px, 7.4vw, 58px);
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--paper);
  text-shadow: 0 2px 0 rgba(0, 0, 0, .45);
}

.page-home .hero .lede {
  margin: 16px 0 0;
  max-width: 30em;
  font-size: 15.5px;
  line-height: 1.75;
  color: rgba(244, 239, 227, .82);
}

.page-home .hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-home .hero-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 26px;
  font-size: 16px;
}

.page-home .hero-sub {
  font-size: 13.5px;
  color: var(--cyan);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px dashed rgba(55, 224, 200, .6);
}

.page-home .hero-sub:hover,
.page-home .hero-sub:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--paper);
}

.page-home .hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 14px 20px;
  margin: clamp(22px, 4vw, 34px) 0 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(167, 184, 176, .32);
}

.page-home .hero-meta dt {
  margin-bottom: 6px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--mute);
}

.page-home .hero-meta dd {
  margin: 0;
  font-family: var(--font-data);
  font-size: 14.5px;
  color: var(--gold);
}

.page-home .hero-meta dd.is-cyan {
  color: var(--cyan);
}

/* 四条轨道 */
.page-home .tracks {
  position: relative;
  padding-top: clamp(44px, 7vw, 76px);
  padding-bottom: clamp(44px, 7vw, 76px);
}

.page-home .tracks::before {
  content: "";
  position: absolute;
  z-index: 0;
  left: 50%;
  top: 0;
  width: 160vw;
  height: 100%;
  transform: translateX(-50%) skewY(-1.6deg);
  background: linear-gradient(180deg, var(--ink-1) 0%, rgba(12, 31, 26, .5) 55%, rgba(6, 18, 15, 0) 100%);
  border-top: var(--home-line);
  border-bottom: 1px solid rgba(122, 92, 18, .35);
}

.page-home .tracks > * {
  position: relative;
  z-index: 1;
}

.page-home .home-h2 {
  margin: 8px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(25px, 4.6vw, 34px);
  line-height: 1.2;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-home .section-note {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mute);
}

.page-home .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}

.page-home .filter-count {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 12px;
  color: var(--mute);
}

.page-home .track-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .track {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px clamp(16px, 2.2vw, 24px) 20px;
  background: var(--ink-2);
  border: var(--home-line);
  box-shadow: var(--home-card-shadow);
  transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.page-home .track:hover,
.page-home .track:focus-within {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 10px 0 -3px rgba(0, 0, 0, .7), 0 22px 38px rgba(0, 0, 0, .55);
}

.page-home .track-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.page-home .track-no {
  font-family: var(--font-data);
  font-size: 22px;
  letter-spacing: .06em;
  color: var(--gold);
}

.page-home .track-media {
  border: 1px solid rgba(55, 224, 200, .32);
  background: var(--ink-0);
}

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

.page-home .track-media--phone img {
  max-height: 230px;
}

.page-home .track-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 20px;
  line-height: 1.35;
  color: var(--paper);
}

.page-home .track-body {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.72;
  color: rgba(244, 239, 227, .78);
}

.page-home .track-facts {
  list-style: none;
  margin: 0;
  padding: 12px 0 0;
  border-top: 1px dashed rgba(167, 184, 176, .28);
  display: grid;
  gap: 8px;
}

.page-home .track-facts li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.page-home .track-facts .k {
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mute);
}

.page-home .track-facts .v {
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--paper);
  text-align: right;
}

.page-home .track-link {
  margin-top: auto;
  padding-top: 6px;
  font-size: 13.5px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px dashed rgba(55, 224, 200, .5);
  align-self: flex-start;
}

.page-home .track-link::after {
  content: " →";
}

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

/* 双版本对照 */
.page-home .versions-body {
  display: grid;
  gap: 22px;
}

.page-home .version-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.page-home .version-card {
  padding: 18px;
  background: linear-gradient(160deg, rgba(18, 48, 41, .95), rgba(12, 31, 26, .95));
  border: var(--home-line-soft);
  box-shadow: var(--home-card-shadow);
}

.page-home .version-card--a {
  border-left: 4px solid var(--gold);
}

.page-home .version-card--b {
  border-left: 4px solid var(--cyan);
}

.page-home .version-tag {
  margin: 0 0 8px;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--mute);
}

.page-home .version-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  line-height: 1.4;
  color: var(--paper);
}

.page-home .version-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 239, 227, .78);
}

.page-home .version-points {
  list-style: none;
  margin: 12px 0 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-home .version-points li {
  position: relative;
  padding-left: 16px;
  font-family: var(--font-data);
  font-size: 12.5px;
  color: var(--mute);
}

.page-home .version-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--cyan);
}

.page-home .version-note {
  margin: 0;
  padding: 14px 16px;
  font-size: 13.5px;
  line-height: 1.7;
  color: rgba(244, 239, 227, .8);
  background: rgba(18, 48, 41, .55);
  border: 1px dashed rgba(242, 194, 75, .5);
}

.page-home .versions-media {
  margin: 0;
}

.page-home .versions-media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border: var(--home-line);
  box-shadow: var(--home-card-shadow);
}

.page-home .versions-media .media__caption {
  margin-top: 10px;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mute);
}

/* 三步动线 */
.page-home .steps {
  position: relative;
  list-style: none;
  margin: 0;
  padding: 0 0 0 52px;
  display: grid;
  gap: 18px;
}

.page-home .steps::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--cyan), rgba(55, 224, 200, .06));
}

.page-home .step {
  position: relative;
  padding: 18px;
  background: linear-gradient(155deg, rgba(18, 48, 41, .92), rgba(12, 31, 26, .92));
  border: var(--home-line-soft);
}

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

.page-home .step-num {
  position: absolute;
  left: -52px;
  top: 12px;
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  font-family: var(--font-data);
  font-size: 13px;
  color: var(--ink-0);
  background: var(--cyan);
  box-shadow: 0 0 0 2px var(--ink-0), 0 0 0 4px rgba(55, 224, 200, .3);
}

.page-home .step-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--paper);
}

.page-home .step-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: rgba(244, 239, 227, .78);
}

.page-home .step-hint {
  display: block;
  margin: 10px 0 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cyan);
}

.page-home .path-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

/* 专栏预告 */
.page-home .post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  border-top: var(--home-line-soft);
}

.page-home .post {
  display: grid;
  gap: 6px;
  padding: 20px 0;
  border-bottom: 1px dashed rgba(167, 184, 176, .26);
}

.page-home .post-tag {
  margin: 0;
  font-family: var(--font-data);
  font-size: 11px;
  letter-spacing: .18em;
  color: var(--gold);
}

.page-home .post-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 17.5px;
  line-height: 1.5;
  color: var(--paper);
}

.page-home .post-title a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px solid rgba(55, 224, 200, 0);
  transition: border-color 160ms ease, color 160ms ease;
}

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

.page-home .post-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(244, 239, 227, .74);
  max-width: 38em;
}

.page-home .post-meta {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--mute);
}

/* 收束面板 */
.page-home .closing-panel {
  display: grid;
  gap: 20px;
  padding: clamp(20px, 4vw, 34px);
  background:
    radial-gradient(120% 120% at 100% 0%, var(--home-glow-gold), transparent 60%),
    linear-gradient(150deg, var(--ink-2), var(--ink-1));
  border: var(--home-line);
  box-shadow: var(--shadow-hard);
}

.page-home .closing-text p {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 14.5px;
  line-height: 1.75;
  color: rgba(244, 239, 227, .8);
}

.page-home .closing-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

/* 平板与桌面 */
@media (min-width: 720px) {
  .page-home .hero .lede {
    font-size: 17px;
  }

  .page-home .track-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

  .page-home .version-note {
    grid-column: 1 / -1;
  }

  .page-home .post {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
    column-gap: 24px;
  }

  .page-home .post-tag {
    grid-column: 1;
  }

  .page-home .post-title {
    grid-column: 1;
  }

  .page-home .post-desc {
    grid-column: 1;
  }

  .page-home .post-meta {
    grid-column: 2;
    grid-row: 1;
    text-align: right;
    white-space: nowrap;
  }

  .page-home .closing-panel {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 32px;
  }
}

@media (min-width: 900px) {
  .page-home .versions-body {
    grid-template-columns: 1.12fr .88fr;
    gap: 28px;
    align-items: start;
  }

  .page-home .versions-media img {
    max-height: 340px;
  }
}

@media (min-width: 880px) {
  .page-home .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
    padding: 48px 0 0;
  }

  .page-home .steps::before {
    left: 6px;
    right: 6px;
    top: 17px;
    bottom: auto;
    width: auto;
    height: 2px;
    background: linear-gradient(90deg, rgba(55, 224, 200, .06), var(--cyan) 22%, var(--cyan) 78%, rgba(55, 224, 200, .06));
  }

  .page-home .step {
    padding: 22px 20px 20px;
  }

  .page-home .step-num {
    left: 20px;
    top: -48px;
  }

  .page-home .step-hint {
    max-height: 0;
    opacity: 0;
    overflow: hidden;
    margin-top: 0;
    transition: max-height 160ms ease, opacity 160ms ease, margin-top 160ms ease;
  }

  .page-home .step:hover .step-hint,
  .page-home .step:focus .step-hint,
  .page-home .step:focus-within .step-hint {
    max-height: 180px;
    opacity: 1;
    margin-top: 10px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .track,
  .page-home .post-title a,
  .page-home .step-hint {
    transition: none;
  }

  .page-home .track:hover,
  .page-home .track:focus-within {
    transform: none;
  }
}