.page-home {
  --hp-rail: 216px;
  --hp-gap: clamp(20px, 3.2vw, 44px);
  --hp-line: rgba(44, 74, 104, 0.6);
  --hp-shadow: 6px 6px 0 rgba(4, 10, 18, 0.55);
  position: relative;
  overflow-x: clip;
  color: var(--paper);
}

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

.page-home figure {
  margin: 0;
}

.page-home .prose {
  color: var(--muted);
  line-height: 1.8;
}

.page-home .tool-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 175, 55, 0.5);
  padding-bottom: 2px;
  font-size: 15px;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease);
}

.page-home .tool-link:hover,
.page-home .tool-link:focus-visible {
  color: var(--gold-lit);
  border-color: var(--gold-lit);
}

/* ---------- 首屏 ---------- */

.page-home .hero {
  position: relative;
  padding: clamp(24px, 4vw, 52px) 0 clamp(36px, 5vw, 68px);
  border-bottom: 1px solid var(--hp-line);
  isolation: isolate;
}

.page-home .hero-grid-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  color: var(--line);
  opacity: 0.32;
  z-index: -1;
  pointer-events: none;
}

.page-home .hero-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

.page-home .hero-rail {
  border-left: 2px solid var(--gold);
  padding-left: 18px;
}

.page-home .rail-title {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-home .rail-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .rail-node {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 11px 0;
  border-bottom: 1px solid var(--hp-line);
  color: var(--paper);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}

.page-home .rail-node::before {
  content: "";
  position: absolute;
  left: -22px;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  transform: translateY(-50%);
  transition: background 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .rail-node:hover::before,
.page-home .rail-node:focus-visible::before {
  background: var(--lime);
  transform: translateY(-50%) scale(1.4);
}

.page-home .rail-node:hover,
.page-home .rail-node:focus-visible {
  color: var(--gold-lit);
}

.page-home .rail-index {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.08em;
}

.page-home .rail-name {
  font-size: 15px;
}

.page-home .hero-main {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--hp-gap);
}

.page-home .hero-copy h1 {
  margin: 12px 0 0;
  font-size: clamp(28px, 6.4vw, 40px);
  line-height: 1.25;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.page-home .hero-copy .lede {
  margin: 18px 0 0;
  max-width: 60ch;
  font-size: clamp(16px, 2.2vw, 17px);
  line-height: 1.8;
  color: var(--paper);
}

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

.page-home .hero-stats {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px 16px;
  margin: 28px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--hp-line);
}

.page-home .stat-num {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.6vw, 40px);
  font-weight: 700;
  line-height: 1.05;
  color: var(--lime);
}

.page-home .stat-label {
  display: block;
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

.page-home .hero-media {
  border: 2px solid var(--line);
  box-shadow: 10px 10px 0 rgba(4, 10, 18, 0.5);
  background: var(--panel);
}

.page-home .hero-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.page-home .hero-cards-shell {
  margin-top: clamp(28px, 4vw, 48px);
}

.page-home .hero-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .hero-card {
  background: var(--panel);
  border: 2px solid var(--line);
  border-left: 3px solid var(--gold);
  box-shadow: var(--hp-shadow);
  padding: 20px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.page-home .hero-card:hover {
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(212, 175, 55, 0.55);
}

.page-home .hero-card-title {
  margin: 10px 0 0;
  font-size: var(--fs-card);
  font-weight: 700;
  line-height: 1.4;
}

.page-home .hero-card-text {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- A1 入口分区 ---------- */

.page-home .entry-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 30px;
}

.page-home .entry-card {
  position: relative;
  background: rgba(18, 42, 68, 0.72);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  padding: 20px 20px 22px;
  box-shadow: var(--hp-shadow);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}

.page-home .entry-card:hover {
  border-color: var(--gold-lit);
  transform: translateY(-2px);
}

.page-home .entry-no {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold);
}

.page-home .entry-card h3 {
  margin: 10px 0 8px;
  font-size: var(--fs-card);
  font-weight: 700;
}

.page-home .entry-card p {
  margin: 0 0 14px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- A2 连号频次 ---------- */

.page-home .freq-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 48px);
  align-items: center;
}

.page-home .freq-media {
  border: 2px solid var(--line);
  border-bottom: 3px solid var(--gold);
  background: var(--panel);
  box-shadow: var(--hp-shadow);
}

.page-home .freq-media img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-home .freq-body .section-title {
  margin: 12px 0 0;
}

.page-home .freq-body .prose {
  margin: 16px 0 0;
}

.page-home .dim-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 0;
  padding: 0;
}

.page-home .dim-chip {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  padding: 7px 14px;
  border: 1px solid var(--line);
  color: var(--muted);
}

.page-home .dim-chip--lime {
  border-color: var(--lime);
  color: var(--lime);
  background: rgba(183, 243, 74, 0.08);
  font-weight: 700;
}

.page-home .freq-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 96px;
  margin-top: 22px;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--hp-line);
}

.page-home .freq-bar {
  display: block;
  flex: 1 1 0;
  background: var(--line);
}

.page-home .freq-bar--1 { height: 34%; }
.page-home .freq-bar--2 { height: 58%; }
.page-home .freq-bar--3 { height: 86%; background: var(--lime); }
.page-home .freq-bar--4 { height: 46%; }
.page-home .freq-bar--5 { height: 70%; }
.page-home .freq-bar--6 { height: 28%; }

.page-home .freq-note {
  margin: 18px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- A3 本地玩法轨道 ---------- */

.page-home .play-section {
  border-top: 1px solid var(--hp-line);
}

.page-home .play-track {
  margin-top: 30px;
  padding: 6px var(--gutter) 22px;
  display: flex;
  gap: 16px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.page-home .play-card {
  flex: 0 0 auto;
  width: min(76vw, 300px);
  scroll-snap-align: start;
  background: var(--panel);
  border: 2px solid var(--line);
  border-top: 3px solid var(--gold);
  box-shadow: var(--hp-shadow);
  padding: 18px;
}

.page-home .play-card--media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  margin-bottom: 16px;
  border: 1px solid var(--line);
}

.page-home .play-region {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--gold);
}

.page-home .play-card h3 {
  margin: 10px 0 8px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
}

.page-home .play-card p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .play-foot {
  margin-top: 8px;
}

/* ---------- A4 反馈 ---------- */

.page-home .help-section {
  border-top: 1px solid var(--hp-line);
}

.page-home .help-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.page-home .help-body .section-title {
  margin: 12px 0 0;
}

.page-home .help-body .prose {
  margin: 16px 0 0;
}

.page-home .step-list {
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.page-home .step {
  position: relative;
  margin-bottom: 12px;
  padding: 18px 18px 18px 68px;
  background: rgba(18, 42, 68, 0.72);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
}

.page-home .step--lime {
  border-left-color: var(--lime);
}

.page-home .step-no {
  position: absolute;
  left: 20px;
  top: 16px;
  font-family: var(--font-mono);
  font-size: 26px;
  font-weight: 700;
  line-height: 1;
  color: var(--gold);
}

.page-home .step--lime .step-no {
  color: var(--lime);
}

.page-home .step h3 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 700;
}

.page-home .step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .help-contact {
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.page-home .contact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--hp-line);
}

.page-home .contact-key {
  flex: 0 0 auto;
  font-size: 14px;
  color: var(--muted);
}

.page-home .contact-val {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--paper);
  word-break: break-all;
}

.page-home .help-media {
  border: 2px solid var(--line);
  border-left: 3px solid var(--lime);
  box-shadow: var(--hp-shadow);
  background: var(--panel);
}

.page-home .help-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

/* ---------- 版本节奏 ---------- */

.page-home .version-accordion {
  margin-top: 28px;
}

.page-home .version-accordion .accordion-item {
  background: rgba(18, 42, 68, 0.6);
  border: 1px solid var(--line);
  border-left: 3px solid var(--gold);
  margin-bottom: 12px;
}

.page-home .version-accordion .accordion-trigger {
  width: 100%;
  text-align: left;
  font-size: 17px;
  font-weight: 700;
  color: var(--paper);
  padding: 16px 18px;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.page-home .version-accordion .accordion-panel {
  padding: 0 18px 18px;
}

.page-home .version-accordion .accordion-panel p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

.page-home .version-foot {
  margin: 18px 0 0;
}

/* ---------- 收尾 ---------- */

.page-home .outro {
  border-top: 1px solid var(--hp-line);
}

.page-home .outro-rail {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--line);
}

.page-home .outro-node {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-home .outro-tick {
  display: inline-block;
  width: 26px;
  height: 2px;
  background: var(--gold);
}

.page-home .outro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 26px;
}

.page-home .outro-card {
  padding: 22px;
  border: 1px solid var(--line);
  background: rgba(18, 42, 68, 0.5);
}

.page-home .outro-card h2 {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
}

.page-home .outro-card p {
  margin: 0 0 18px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */

@media (min-width: 640px) {
  .page-home .hero-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

  .page-home .hero-card:nth-child(2) {
    margin-top: 26px;
  }

  .page-home .hero-card:nth-child(3) {
    margin-top: 52px;
  }

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

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

@media (min-width: 900px) {
  .page-home .hero-shell {
    grid-template-columns: var(--hp-rail) minmax(0, 1fr);
  }

  .page-home .hero-rail {
    position: sticky;
    top: 96px;
    align-self: start;
  }

  .page-home .hero-main {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }

  .page-home .freq-grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
  }

  .page-home .help-grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  }

  .page-home .play-card {
    width: 320px;
  }
}

@media (min-width: 1000px) {
  .page-home .entry-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (prefers-reduced-motion: reduce) {
  .page-home .hero-card,
  .page-home .entry-card,
  .page-home .rail-node::before,
  .page-home .tool-link {
    transition: none;
  }

  .page-home .hero-card:hover,
  .page-home .entry-card:hover {
    transform: none;
  }
}