.page-home {
  --ph-gap: clamp(20px, 4vw, 52px);
  --ph-mono-size: clamp(18px, 2.2vw, 26px);
  color: var(--bone);
  background: var(--ink-abyss);
}

.page-home .num,
.page-home .rail-board__axis,
.page-home .tier__range,
.page-home .tier__count b,
.page-home .step__k {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.page-home .lead {
  font-size: 16.5px;
  line-height: 1.78;
  color: rgba(242, 245, 238, .82);
  max-width: 60ch;
}

.page-home h2 {
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 44px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 8px 0 0;
}

.page-home .prose {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(242, 245, 238, .78);
  max-width: 68ch;
}

/* ---------- 首屏 ---------- */
.page-home .open {
  position: relative;
  padding-block: clamp(28px, 5vw, 72px) clamp(36px, 6vw, 92px);
  background:
    radial-gradient(circle at 76% 18%, rgba(184, 255, 60, .10), transparent 46%),
    linear-gradient(158deg, var(--ink-abyss) 0%, var(--ink-panel) 62%, var(--ink-abyss) 100%);
  overflow: hidden;
}

.page-home .open::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(22, 70, 58, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(22, 70, 58, .5) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .55;
  pointer-events: none;
}

.page-home .open__inner {
  position: relative;
  display: grid;
  gap: var(--ph-gap);
  align-items: start;
}

.page-home .open__vnote {
  writing-mode: vertical-rl;
  letter-spacing: .3em;
  font-size: 12px;
  color: var(--graphite);
  padding-left: 10px;
  border-left: 2px solid var(--lime);
  margin: 0 0 10px;
  height: clamp(90px, 16vw, 150px);
}

.page-home .open h1 {
  font-family: var(--font-cond);
  font-weight: 900;
  font-size: clamp(32px, 7vw, 62px);
  line-height: .98;
  letter-spacing: -0.02em;
  margin: 10px 0 16px;
  max-width: 16ch;
}

.page-home .open__index {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.page-home .open__board {
  display: grid;
  gap: 14px;
}

.page-home .open__media {
  position: relative;
  border-radius: var(--radius-m);
  overflow: hidden;
  border: var(--hair);
}

.page-home .open__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.5) contrast(1.06) brightness(.72);
}

/* ---------- 轨道板 ---------- */
.page-home .rail-board {
  padding: clamp(14px, 2.2vw, 24px);
  background: rgba(12, 32, 26, .88);
  border: var(--hair);
  border-radius: var(--radius-l);
}

.page-home .rail-board__bar {
  display: flex;
  gap: 6px;
  height: 20px;
  border-radius: 999px;
  overflow: hidden;
}

.page-home .rail-seg {
  border-radius: 999px;
  flex-basis: 0;
  min-width: 0;
}

.page-home .rail-seg--d1 {
  flex-grow: 4;
  background: var(--lime);
}

.page-home .rail-seg--d2 {
  flex-grow: 6;
  background: linear-gradient(90deg, var(--lime-soft), rgba(184, 255, 60, .5));
}

.page-home .rail-seg--d3 {
  flex-grow: 6;
  background: rgba(242, 245, 238, .2);
}

.page-home .rail-seg--d4 {
  flex-grow: 4;
  background: repeating-linear-gradient(135deg, rgba(110, 123, 118, .75) 0 6px, rgba(22, 70, 58, .95) 6px 12px);
}

.page-home .rail-board__axis {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin: 12px 2px 0;
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--graphite);
}

/* ---------- 档位条目 ---------- */
.page-home .rail-sec {
  background: var(--ink-panel);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-home .rail-sec__grid {
  align-items: end;
}

.page-home .rail-sec__note {
  align-self: end;
}

.page-home .rail-sec__hint {
  margin-top: 16px;
}

.page-home .rail-board__tiers {
  list-style: none;
  margin: clamp(24px, 4vw, 40px) 0 0;
  padding: 0;
  display: grid;
  gap: 10px;
}

.page-home .tier {
  display: grid;
  gap: 6px;
  padding: 14px 16px;
  background: rgba(5, 16, 13, .6);
  border: 1px solid var(--ink-track);
  border-radius: var(--radius-s);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-home .tier:hover,
.page-home .tier:focus-within {
  border-color: var(--lime);
  background: rgba(184, 255, 60, .07);
  transform: translateY(-2px);
}

.page-home .tier--d1 { border-left: 4px solid var(--lime); }
.page-home .tier--d2 { border-left: 4px solid var(--lime-soft); }
.page-home .tier--d3 { border-left: 4px solid rgba(242, 245, 238, .32); }
.page-home .tier--d4 { border-left: 4px solid var(--graphite); }

.page-home .tier__zone {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--graphite);
}

.page-home .tier__range {
  font-size: var(--ph-mono-size);
  color: var(--bone);
}

.page-home .tier--d1 .tier__range,
.page-home .tier--d2 .tier__range {
  color: var(--lime);
}

.page-home .tier__count {
  font-size: 13px;
  color: rgba(242, 245, 238, .7);
}

.page-home .tier__count b {
  font-size: 18px;
  color: var(--bone);
  margin-right: 2px;
}

/* ---------- 三条主线 ---------- */
.page-home .lines {
  background: var(--ink-abyss);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-home .lines__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .line-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(18px, 2.6vw, 30px);
  border: var(--hair);
  border-radius: var(--radius-l);
  background: var(--ink-panel);
}

.page-home .line-card--loan {
  background: linear-gradient(155deg, var(--wine) 0%, #4d1e28 78%);
  border-color: rgba(184, 255, 60, .22);
}

.page-home .line-card--safety {
  background: linear-gradient(120deg, rgba(75, 63, 158, .32) 0%, rgba(5, 16, 13, .9) 62%);
}

.page-home .line-card__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-home .line-card h3 {
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(20px, 2.2vw, 27px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0;
}

.page-home .line-card p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(242, 245, 238, .82);
  max-width: 62ch;
}

.page-home .line-card__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 6px;
}

.page-home .line-card__facts li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: rgba(242, 245, 238, .72);
}

.page-home .line-card__facts li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 7px;
  height: 2px;
  background: var(--lime);
}

.page-home .line-card--loan .line-card__facts li::before {
  background: var(--lime-soft);
}

.page-home .line-card .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-home .line-card__media {
  border-radius: var(--radius-m);
  overflow: hidden;
  border: 1px solid rgba(242, 245, 238, .12);
}

.page-home .line-card__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.55) contrast(1.08) brightness(.76);
}

.page-home .line-card__safety-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.page-home .mini-tri {
  display: flex;
  gap: 8px;
  margin-top: 2px;
}

.page-home .mini-tri__line {
  flex: 1 1 0;
  height: 6px;
  border-radius: 999px;
}

.page-home .mini-tri__line--direct {
  background: var(--amber);
}

.page-home .mini-tri__line--playoff {
  background: repeating-linear-gradient(90deg, var(--volt) 0 12px, transparent 12px 20px);
}

.page-home .mini-tri__line--drop {
  background: repeating-linear-gradient(90deg, var(--alert) 0 3px, transparent 3px 10px);
}

.page-home .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .legend__item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  font-size: 12.5px;
  color: rgba(242, 245, 238, .82);
  background: rgba(5, 16, 13, .5);
  border: 1px solid var(--ink-track);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color var(--ease), color var(--ease);
}

.page-home .legend__item:hover,
.page-home .legend__item[aria-pressed="true"] {
  border-color: var(--lime);
  color: var(--bone);
}

.page-home .mini-tri__line[data-off="true"],
.page-home .legend__item[data-off="true"] {
  opacity: .35;
}

/* ---------- 轮次节点 ---------- */
.page-home .round {
  background: var(--ink-panel);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-home .round__grid {
  display: grid;
  gap: var(--ph-gap);
  align-items: center;
}

.page-home .round__media {
  position: relative;
  border-radius: var(--radius-l);
  overflow: hidden;
  border: var(--hair);
}

.page-home .round__media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  filter: saturate(.45) contrast(1.1) brightness(.72);
}

.page-home .round__body h2 {
  margin-bottom: 14px;
}

.page-home .round__steps {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--ink-track);
  border: var(--hair);
  border-radius: var(--radius-s);
  overflow: hidden;
}

.page-home .step {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 16px;
  background: rgba(5, 16, 13, .72);
  transition: background var(--ease);
}

.page-home .step:hover {
  background: rgba(184, 255, 60, .06);
}

.page-home .step__k {
  font-size: 24px;
  color: var(--lime);
  min-width: 3ch;
}

.page-home .step__v {
  font-size: 14.5px;
  color: rgba(242, 245, 238, .78);
}

.page-home .round__body .note {
  margin-top: 20px;
}

.page-home a {
  color: var(--lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(184, 255, 60, .35);
  transition: color var(--ease), border-color var(--ease);
}

.page-home a:hover {
  color: var(--lime-soft);
  border-color: var(--lime-soft);
}

/* ---------- 衍生统计 ---------- */
.page-home .derive {
  background: var(--ink-abyss);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-home .derive__grid {
  display: grid;
  gap: clamp(16px, 2.4vw, 26px);
  margin-top: clamp(28px, 4vw, 44px);
}

.page-home .derive-card {
  padding: clamp(18px, 2.6vw, 30px);
  border: var(--hair);
  border-radius: var(--radius-l);
  background: var(--ink-panel);
}

.page-home .derive-card--set {
  border-top: 3px solid var(--lime);
}

.page-home .derive-card--bench {
  background: linear-gradient(170deg, rgba(227, 164, 60, .16) 0%, var(--ink-panel) 58%);
  border-top: 3px solid var(--amber);
}

.page-home .derive-card h3 {
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(20px, 2.2vw, 26px);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
}

.page-home .derive-card p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.78;
  color: rgba(242, 245, 238, .8);
  max-width: 60ch;
}

.page-home .derive-list {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.page-home .derive-list li {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(22, 70, 58, .9);
}

.page-home .derive-list li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.page-home .derive-list__k {
  font-size: 14px;
  color: var(--lime);
  min-width: 6ch;
}

.page-home .derive-list__v {
  font-size: 14px;
  color: rgba(242, 245, 238, .7);
}

.page-home .derive-card__figure {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 22px;
}

.page-home .derive-card__figure .num {
  font-size: clamp(44px, 6vw, 68px);
  line-height: 1;
  color: var(--amber);
}

.page-home .derive-card__unit {
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--graphite);
}

.page-home .derive .note {
  margin-top: 22px;
}

/* ---------- 去向 ---------- */
.page-home .go {
  background: var(--ink-panel);
  padding-block: clamp(48px, 7vw, 96px);
}

.page-home .go__grid {
  display: grid;
  gap: clamp(14px, 2.2vw, 24px);
  margin-top: clamp(26px, 4vw, 40px);
}

.page-home .go-card {
  display: grid;
  gap: 8px;
  padding: clamp(20px, 3vw, 34px);
  border-radius: var(--radius-l);
  border: 1px solid var(--ink-track);
  background: rgba(5, 16, 13, .7);
  color: var(--bone);
  text-decoration: none;
  border-bottom: 1px solid var(--ink-track);
  transition: border-color var(--ease), background var(--ease), transform var(--ease);
}

.page-home .go-card:hover {
  border-color: var(--lime);
  background: rgba(184, 255, 60, .06);
  transform: translateY(-3px);
  color: var(--bone);
}

.page-home .go-card--connect {
  background: linear-gradient(140deg, rgba(75, 63, 158, .5) 0%, rgba(5, 16, 13, .86) 70%);
}

.page-home .go-card__k {
  font-size: 12.5px;
  letter-spacing: .18em;
  color: var(--graphite);
}

.page-home .go-card__t {
  font-family: var(--font-cond);
  font-weight: 800;
  font-size: clamp(19px, 2.1vw, 25px);
  line-height: 1.24;
  letter-spacing: -0.01em;
}

.page-home .go-card__a {
  margin-top: 6px;
  font-size: 14px;
  color: var(--lime);
}

.page-home .go .note {
  margin-top: 22px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 720px) {
  .page-home .rail-board__tiers {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .page-home .derive-card--bench {
    grid-column: auto;
  }

  .page-home .legend {
    gap: 10px;
  }
}

@media (min-width: 900px) {
  .page-home .open__inner {
    grid-template-columns: minmax(0, 4fr) minmax(0, 7fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-home .open__board {
    position: relative;
    min-height: 400px;
  }

  .page-home .open__media {
    position: absolute;
    inset: 0;
    border: 0;
  }

  .page-home .open__media img {
    height: 100%;
    opacity: .3;
  }

  .page-home .rail-board {
    position: relative;
    margin-top: clamp(48px, 12vh, 150px);
  }

  .page-home .lines__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-home .line-card--goal {
    grid-column: 1 / span 7;
  }

  .page-home .line-card--loan {
    grid-column: 8 / span 5;
  }

  .page-home .line-card--safety {
    grid-column: 2 / span 11;
    flex-direction: row;
    align-items: stretch;
    gap: clamp(20px, 3vw, 40px);
  }

  .page-home .line-card--safety .line-card__safety-body {
    flex: 1 1 46%;
    min-width: 0;
  }

  .page-home .line-card--safety .line-card__media--wide {
    flex: 1 1 54%;
    min-width: 0;
  }

  .page-home .line-card__media--wide img {
    height: 100%;
  }

  .page-home .round__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(28px, 4vw, 64px);
  }

  .page-home .derive__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

@media (min-width: 1100px) {
  .page-home .rail-board__tiers {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}