.page-home {
  --home-gap: clamp(2.25rem, 6vw, 4.5rem);
  --home-score: clamp(3.25rem, 15vw, 5rem);
  --home-ring-size: clamp(3.5rem, 16vw, 5.25rem);
  --home-ring-lg: clamp(6rem, 34vw, 10rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}

.page-home > section {
  margin-top: var(--home-gap);
}

/* ---------- 通用小节头部 ---------- */
.page-home .section-head {
  max-width: 720px;
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}

.page-home .section-title {
  margin: 0.5rem 0 0.75rem;
  font-size: clamp(1.5rem, 5vw, 2.25rem);
  line-height: 1.15;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-home .section-lede {
  margin: 0;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--c-steel);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  display: grid;
  gap: clamp(1rem, 3vw, 1.75rem);
}

.page-home .hero__board {
  position: relative;
  padding: clamp(1.25rem, 4vw, 2.25rem);
  background: linear-gradient(150deg, rgba(10, 26, 47, 0.96), rgba(5, 13, 24, 0.98));
  border: 1px solid var(--line-wood);
  border-radius: var(--radius);
  box-shadow: 0 18px 48px rgba(5, 13, 24, 0.55);
  overflow: hidden;
}

.page-home .hero__board::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 60%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(56, 225, 208, 0.16), transparent 68%);
  pointer-events: none;
}

.page-home .hero__title {
  margin: 0.75rem 0 0.85rem;
  font-size: clamp(1.65rem, 6.5vw, 2.75rem);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: -0.015em;
  max-width: 18ch;
}

.page-home .hero__lede {
  margin: 0 0 clamp(1.25rem, 4vw, 1.75rem);
  max-width: 34em;
  font-size: 0.98rem;
  line-height: 1.8;
  color: var(--c-steel);
}

.page-home .board {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  padding: clamp(0.75rem, 3vw, 1.25rem) 0;
}

.page-home .board::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    transparent calc(50% - 1px),
    var(--line-cyan) calc(50% - 1px),
    var(--line-cyan) calc(50% + 1px),
    transparent calc(50% + 1px)
  );
  opacity: 0.6;
  pointer-events: none;
}

.page-home .board__side {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  position: relative;
  z-index: 1;
}

.page-home .board__side--away {
  grid-area: 1 / 1 / 2 / 2;
  align-items: flex-start;
}

.page-home .board__side--home {
  grid-area: 2 / 2 / 3 / 3;
  align-items: flex-end;
  padding-top: clamp(0.75rem, 4vw, 2rem);
}

.page-home .board__team {
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  color: var(--c-steel);
  font-family: var(--font-mono);
}

.page-home .board__score {
  font-size: var(--home-score);
  line-height: 0.95;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--c-paper);
  display: block;
}

.page-home .board__meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.75rem;
  margin: clamp(1.25rem, 4vw, 1.75rem) 0 0;
  padding: 1rem 0 0;
  list-style: none;
  border-top: 1px solid var(--hair);
}

.page-home .board__meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.page-home .board__meta-label {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--c-steel);
}

.page-home .board__meta-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--c-wood-soft);
}

.page-home .hero__aside {
  display: grid;
  gap: 0.85rem;
  align-content: start;
}

.page-home .hero__scene {
  border: 1px solid var(--hair-strong);
}

.page-home .hero__ring {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.9rem 1.1rem;
  text-decoration: none;
  background: linear-gradient(120deg, rgba(192, 132, 71, 0.16), rgba(5, 13, 24, 0.7));
  border: 1px solid var(--line-wood);
  border-radius: var(--radius);
  transition: border-color 160ms ease, transform 160ms ease;
}

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

.page-home .hero__ring-meta {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.page-home .hero__ring-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--c-steel);
}

.page-home .hero__ring-value {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.6rem;
  line-height: 1;
  letter-spacing: -0.02em;
}

.page-home .hero__ring-hint {
  font-size: 0.8rem;
  color: var(--c-wood-soft);
}

/* 呼吸圈 */
.page-home .breath-ring {
  position: relative;
  flex: none;
  width: var(--home-ring-size);
  height: var(--home-ring-size);
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(56, 225, 208, 0.9) 0 22%, rgba(56, 225, 208, 0.15) 23% 100%);
  border: 1px solid var(--line-cyan);
  animation: home-breathe 4s ease-in-out infinite;
}

.page-home .breath-ring::before {
  content: "";
  position: absolute;
  inset: 22%;
  border-radius: 50%;
  border: 1px solid rgba(56, 225, 208, 0.45);
}

.page-home .breath-ring--lg {
  width: var(--home-ring-lg);
  height: var(--home-ring-lg);
}

@keyframes home-breathe {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.045); }
}

/* ---------- 逐节拆解 ---------- */
.page-home .quarters__grid {
  display: grid;
  gap: 1.1rem;
}

.page-home .q-card {
  position: relative;
  padding: 1.15rem 1.15rem 1.15rem 1.5rem;
  border-left: 3px solid var(--c-wood);
}

.page-home .q-card__no {
  margin: 0 0 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  color: var(--c-wood);
}

.page-home .q-card__diff {
  display: block;
  margin: 0;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(2rem, 8vw, 2.75rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-ink);
}

.page-home .q-card__label {
  margin: 0.35rem 0 0.6rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--c-ink);
}

.page-home .q-card__note {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(16, 24, 34, 0.72);
}

.page-home .quarters__visual {
  border: 1px solid var(--hair-strong);
  min-height: 180px;
}

/* ---------- 呼吸圈数据卡 ---------- */
.page-home .breath-card {
  border: 1px solid var(--line-wood);
  border-radius: var(--radius);
  background: linear-gradient(140deg, rgba(10, 26, 47, 0.95), rgba(5, 13, 24, 0.98));
  overflow: hidden;
}

.page-home .breath-card__summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  padding: clamp(1.25rem, 5vw, 2.25rem);
  cursor: pointer;
  list-style: none;
}

.page-home .breath-card__summary::-webkit-details-marker {
  display: none;
}

.page-home .breath-card__summary:focus-visible {
  outline: 2px solid var(--c-cyan);
  outline-offset: -2px;
}

.page-home .breath-card__figure {
  display: flex;
  align-items: baseline;
  gap: 0.2rem;
}

.page-home .breath-card__num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(3rem, 16vw, 5.5rem);
  line-height: 0.9;
  letter-spacing: -0.05em;
}

.page-home .breath-card__unit {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.1rem, 5vw, 1.75rem);
  color: var(--c-cyan);
}

.page-home .breath-card__label {
  font-size: clamp(0.95rem, 3.4vw, 1.2rem);
  font-weight: 600;
  color: var(--c-paper);
}

.page-home .breath-card__cue {
  margin-left: auto;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  color: var(--c-orange);
  border: 1px solid rgba(255, 123, 69, 0.45);
  border-radius: 999px;
  padding: 0.3rem 0.75rem;
}

.page-home .breath-card[open] .breath-card__cue {
  color: var(--c-steel);
  border-color: var(--hair-strong);
}

.page-home .breath-card__body {
  padding: 0 clamp(1.25rem, 5vw, 2.25rem) clamp(1.25rem, 5vw, 2.25rem);
  border-top: 1px solid var(--hair);
}

.page-home .breath-card__list {
  list-style: none;
  margin: 1.1rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.page-home .breath-card__list li {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.7rem 0.85rem;
  background: rgba(56, 225, 208, 0.05);
  border-left: 2px solid var(--line-cyan);
}

.page-home .breath-card__list-key {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--c-steel);
  font-family: var(--font-mono);
}

.page-home .breath-card__list-val {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--c-paper);
}

.page-home .breath-card__note {
  margin: 1.1rem 0 0;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-steel);
}

/* ---------- 赛季档案 ---------- */
.page-home .archive {
  display: grid;
  gap: clamp(1.25rem, 4vw, 2rem);
  align-items: center;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: linear-gradient(115deg, rgba(5, 13, 24, 0.9), rgba(10, 26, 47, 0.72));
  border: 1px solid var(--hair);
  border-radius: var(--radius);
}

.page-home .archive__visual {
  position: relative;
}

.page-home .archive__visual .frame__overlay {
  background: linear-gradient(180deg, transparent 42%, rgba(5, 13, 24, 0.72));
}

.page-home .archive__list {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}

.page-home .archive__list li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 1rem;
  padding-bottom: 0.9rem;
  border-bottom: 1px solid var(--hair);
}

.page-home .archive__num {
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: clamp(1.75rem, 7vw, 2.5rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--c-cyan);
}

.page-home .archive__desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-steel);
}

/* ---------- 移动端 ---------- */
.page-home .mobile {
  display: grid;
  gap: clamp(1.25rem, 4vw, 2rem);
  align-items: center;
}

.page-home .mobile__points {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0;
  display: grid;
  gap: 0.85rem;
}

.page-home .mobile__points li {
  display: grid;
  gap: 0.3rem;
  padding: 0.85rem 1rem;
  background: rgba(192, 132, 71, 0.1);
  border-left: 2px solid var(--c-wood);
  border-radius: var(--radius);
}

.page-home .mobile__point-key {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  color: var(--c-wood-soft);
}

.page-home .mobile__point-val {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--c-paper);
}

.page-home .mobile__visual {
  border: 1px solid var(--line-cyan);
  max-height: 520px;
}

/* ---------- 收藏 ---------- */
.page-home .keep__grid {
  display: grid;
  gap: 1rem;
}

.page-home .keep__item {
  padding: 1.25rem;
}

.page-home .keep__no {
  display: block;
  font-family: var(--font-mono);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
  color: var(--c-wood);
  margin-bottom: 0.6rem;
}

.page-home .keep__item .card__title {
  margin: 0 0 0.45rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--c-ink);
}

.page-home .keep__text {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.7;
  color: rgba(16, 24, 34, 0.72);
}

.page-home .keep__note {
  margin: 1.25rem 0 0;
  max-width: 62ch;
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--c-steel);
}

/* ---------- 常见疑问 ---------- */
.page-home .ask__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.page-home .ask__item {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.25rem;
  padding: 1rem 0.25rem;
  border-bottom: 1px solid var(--hair);
}

.page-home .ask__q {
  font-size: 0.98rem;
  line-height: 1.6;
  color: var(--c-paper);
}

.page-home .ask__a {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--c-cyan);
  text-decoration: none;
  border-bottom: 1px solid var(--line-cyan);
  padding-bottom: 2px;
  transition: color 160ms ease, border-color 160ms ease;
}

.page-home .ask__a:hover,
.page-home .ask__a:focus-visible {
  color: var(--c-orange);
  border-color: var(--c-orange);
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home {
    --home-score: clamp(4rem, 9vw, 6rem);
  }

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

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

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

@media (min-width: 960px) {
  .page-home {
    --home-score: 6.875rem;
  }

  .page-home .hero {
    grid-template-columns: minmax(0, 2fr) minmax(260px, 1fr);
    align-items: stretch;
  }

  .page-home .hero__aside {
    grid-template-rows: 1fr auto;
  }

  .page-home .archive {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
    gap: 2.5rem;
  }

  .page-home .archive__body {
    padding-right: 0.5rem;
  }

  .page-home .mobile {
    grid-template-columns: minmax(0, 1.25fr) minmax(240px, 0.75fr);
    gap: 2.5rem;
  }
}

@media (min-width: 1080px) {
  .page-home .quarters__grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    grid-template-rows: auto auto;
  }

  .page-home .quarters__visual {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .page-home .archive__list li {
    grid-template-columns: 5.5rem 1fr;
  }
}

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

  .page-home .hero__ring {
    transition: none;
  }
}