.page-home {
  --ph-grid-size: 24px;
  --ph-section-y: clamp(64px, 9vw, 128px);
  --ph-gap: clamp(20px, 4vw, 40px);
  --ph-text-soft: rgba(242, 246, 250, 0.76);
  --ph-text-faint: rgba(242, 246, 250, 0.58);
  background: var(--ink-900);
  color: var(--white-000);
  font-family: var(--font-sans);
  overflow-x: clip;
}

/* ---------- 分屏首屏 ---------- */

.page-home .ph-hero {
  position: relative;
  background:
    radial-gradient(120% 95% at 84% 14%, #0B1E33 0%, #06121F 64%),
    var(--ink-900);
  border-bottom: 1px solid var(--line-600);
  overflow: hidden;
}

.page-home .ph-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: var(--ph-grid-size) var(--ph-grid-size);
  pointer-events: none;
}

.page-home .ph-hero-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
  box-sizing: border-box;
  padding-top: calc(var(--header-h) + clamp(28px, 6vw, 72px));
  padding-bottom: clamp(48px, 7vw, 88px);
}

.page-home .ph-hero-copy {
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.page-home .breadcrumb {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--grey-400);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.page-home .breadcrumb-sep {
  color: var(--cyan-500);
}

.page-home .ph-hero-title {
  margin: 0;
  font-size: clamp(34px, 6vw, 64px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--white-000);
  text-wrap: balance;
}

.page-home .ph-hero-sub {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.4vw, 15px);
  letter-spacing: 0.08em;
  color: var(--cyan-300);
}

.page-home .ph-hero-lead {
  margin: 0;
  max-width: 34em;
  font-size: clamp(15px, 1.3vw, 17px);
  line-height: 1.78;
  color: var(--ph-text-soft);
}

.page-home .ph-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 4px;
}

.page-home .ph-hero-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin: 12px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line-600);
}

.page-home .ph-hero-facts dt {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--grey-400);
}

.page-home .ph-hero-facts dd {
  margin: 8px 0 0;
  font-size: clamp(13px, 1.2vw, 15px);
  line-height: 1.5;
  color: var(--white-000);
}

.page-home .ph-hero-visual {
  position: relative;
  min-width: 0;
  border: 1px solid var(--line-600);
  background: var(--deep-800);
  aspect-ratio: 4 / 5;
  overflow: hidden;
}

.page-home .ph-hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.36;
  filter: saturate(0.78) contrast(1.06);
}

.page-home .ph-hero-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.page-home .ph-orbit {
  fill: none;
  stroke: rgba(0, 229, 255, 0.26);
  stroke-width: 1;
}

.page-home .ph-orbit--thin {
  stroke: rgba(0, 229, 255, 0.12);
}

.page-home .ph-orbit--flat {
  stroke: rgba(127, 227, 255, 0.2);
}

.page-home .ph-flow {
  fill: none;
  stroke-width: 2;
}

.page-home .ph-flow--a {
  stroke: url(#phFlow);
}

.page-home .ph-flow--b {
  stroke: url(#phFlow2);
}

.page-home .ph-ruler line {
  stroke: rgba(0, 229, 255, 0.22);
  stroke-width: 1;
}

.page-home .ph-node {
  fill: var(--orange-500);
}

/* ---------- 章节标题骨架 ---------- */

.page-home .ph-sec-head {
  display: grid;
  gap: 12px;
  max-width: 64ch;
  margin-bottom: clamp(28px, 4.5vw, 56px);
}

.page-home .ph-sec-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cyan-500);
}

.page-home .ph-sec-head h2 {
  margin: 0;
  font-size: clamp(24px, 3.6vw, 42px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--white-000);
}

.page-home .ph-sec-lead {
  margin: 0;
  font-size: 16px;
  line-height: 1.78;
  color: var(--ph-text-soft);
  max-width: 58ch;
}

/* ---------- 赛季时间轴 ---------- */

.page-home .ph-seasons {
  padding: var(--ph-section-y) 0 0;
  background: var(--ink-900);
}

.page-home .ph-track {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .ph-track-item {
  position: relative;
  padding: 22px 12px 22px 22px;
  border-left: 1px solid var(--line-600);
  border-top: 1px solid var(--line-600);
  transition: background 240ms var(--ease);
}

.page-home .ph-track-dot {
  position: absolute;
  top: 27px;
  left: -5px;
  width: 9px;
  height: 9px;
  background: var(--ink-900);
  border: 1px solid var(--cyan-500);
  transition: transform 240ms var(--ease), background-color 240ms var(--ease), border-color 240ms var(--ease);
}

.page-home .ph-track-year {
  display: block;
  font-family: var(--font-mono);
  font-size: clamp(19px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white-000);
}

.page-home .ph-track-hint {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.62;
  color: var(--grey-400);
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 260ms var(--ease), opacity 260ms var(--ease);
}

.page-home .ph-track-item:hover,
.page-home .ph-track-item:focus-within {
  background: rgba(16, 42, 68, 0.55);
}

.page-home .ph-track-item:hover .ph-track-dot,
.page-home .ph-track-item:focus-within .ph-track-dot {
  transform: scale(1.8);
  background: var(--orange-500);
  border-color: var(--orange-500);
}

.page-home .ph-track-item:hover .ph-track-hint,
.page-home .ph-track-item:focus-within .ph-track-hint {
  max-height: 140px;
  opacity: 1;
  color: var(--cyan-300);
}

.page-home .ph-divider {
  margin: clamp(36px, 6vw, 72px) 0 0;
  border-top: 1px solid var(--line-600);
  border-bottom: 1px solid var(--line-600);
  background: var(--deep-800);
}

.page-home .ph-divider img {
  display: block;
  width: 100%;
  height: clamp(150px, 20vw, 280px);
  object-fit: cover;
  opacity: 0.62;
}

/* ---------- 三块基础数据切片 ---------- */

.page-home .ph-slices {
  padding: var(--ph-section-y) 0;
  background: var(--deep-800);
}

.page-home .ph-slice-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--line-600);
  border: 1px solid var(--line-600);
}

.page-home .ph-slice {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  padding: clamp(22px, 3vw, 36px);
  background: var(--ink-900);
  transition: background-color 240ms var(--ease);
}

.page-home .ph-slice:hover {
  background: var(--surface-700);
}

.page-home .ph-slice-index {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan-500);
}

.page-home .ph-slice-title {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--white-000);
}

.page-home .ph-slice--odds .ph-slice-title {
  color: var(--orange-500);
}

.page-home .ph-slice-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ph-text-soft);
  max-width: 40ch;
}

.page-home .ph-field-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line-600);
}

.page-home .ph-field-list li {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--line-600);
  font-size: 14px;
  line-height: 1.6;
  color: var(--ph-text-soft);
}

.page-home .ph-field-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 5px;
  height: 5px;
  background: var(--cyan-500);
  transform: translateY(-2px);
}

.page-home .ph-slice-figure {
  margin: auto 0 0;
  max-width: 200px;
  border: 1px solid var(--line-600);
  background: var(--deep-800);
  overflow: hidden;
}

.page-home .ph-slice-figure img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  opacity: 0.85;
}

.page-home .ph-slice-link {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.4);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .ph-slice-link:hover {
  color: var(--orange-500);
  border-bottom-color: var(--orange-500);
}

/* ---------- 两条对照口径 ---------- */

.page-home .ph-gauges {
  padding: var(--ph-section-y) 0;
  background: var(--ink-900);
}

.page-home .ph-gauge-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
}

.page-home .ph-gauge {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 0;
  padding-top: 22px;
  border-top: 2px solid var(--cyan-500);
}

.page-home .ph-gauge--alt {
  border-top-color: var(--orange-500);
}

.page-home .ph-gauge-title {
  margin: 0;
  font-size: clamp(19px, 2vw, 24px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white-000);
}

.page-home .ph-gauge-figure {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.8vw, 46px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--white-000);
}

.page-home .ph-gauge--alt .ph-gauge-figure {
  color: var(--orange-500);
}

.page-home .ph-gauge-note {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--ph-text-soft);
  max-width: 44ch;
}

.page-home .ph-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
  margin: 4px 0 0;
  padding: 0;
}

.page-home .ph-tag-list li {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  padding: 4px 11px;
  border: 1px solid var(--edge-500);
  color: var(--cyan-300);
}

.page-home .ph-gauge--alt .ph-tag-list li {
  color: var(--ph-text-soft);
  border-color: var(--line-600);
}

.page-home .ph-gauge-bridge {
  display: flex;
  align-items: center;
  padding: 4px 0;
  border-top: 1px dashed var(--line-600);
}

.page-home .ph-bridge-text {
  margin: 0;
  padding-top: 22px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ph-text-faint);
}

/* ---------- 补时规则主题带 ---------- */

.page-home .ph-band {
  position: relative;
  background: linear-gradient(102deg, #0B1E33 0%, #102A44 58%, #0B1E33 100%);
  border-top: 1px solid var(--line-600);
  border-bottom: 1px solid var(--line-600);
  overflow: hidden;
}

.page-home .ph-band::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan-500) 0%, var(--orange-500) 68%, rgba(255, 107, 53, 0) 100%);
}

.page-home .ph-band-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 32px;
  padding-top: clamp(40px, 6vw, 80px);
  padding-bottom: clamp(40px, 6vw, 80px);
}

.page-home .ph-band-copy {
  display: flex;
  flex-direction: column;
  gap: 16px;
  min-width: 0;
}

.page-home .ph-band-kicker {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--orange-500);
}

.page-home .ph-band-title {
  margin: 0;
  font-size: clamp(24px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--white-000);
}

.page-home .ph-band-text {
  margin: 0;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ph-text-soft);
  max-width: 52ch;
}

.page-home .ph-band-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line-600);
  border: 1px solid var(--line-600);
}

.page-home .ph-band-list li {
  padding: 12px 16px;
  background: rgba(6, 18, 31, 0.72);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--ph-text-soft);
}

.page-home .ph-band-copy .btn {
  align-self: flex-start;
  margin-top: 4px;
}

.page-home .ph-band-art {
  margin: 0;
  border: 1px solid var(--line-600);
  overflow: hidden;
}

.page-home .ph-band-art img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  opacity: 0.82;
}

/* ---------- 规模与节奏 ---------- */

.page-home .ph-scale {
  padding: var(--ph-section-y) 0;
  background: var(--deep-800);
}

.page-home .ph-scale-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-home .ph-stat-list {
  display: grid;
  border-top: 1px solid var(--line-600);
}

.page-home .ph-stat {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px 22px;
  margin: 0;
  padding: 20px 0;
  border-bottom: 1px solid var(--line-600);
}

.page-home .ph-stat-num {
  flex: 0 0 auto;
  font-family: var(--font-mono);
  font-size: clamp(30px, 3.8vw, 48px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  color: var(--cyan-500);
}

.page-home .ph-stat-label {
  flex: 1 1 220px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--ph-text-soft);
}

.page-home .ph-rhythm-title {
  margin: 0 0 22px;
  font-size: clamp(18px, 1.9vw, 22px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--white-000);
}

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

.page-home .ph-rhythm-list li {
  position: relative;
  margin-left: 4px;
  padding: 0 0 22px 26px;
  border-left: 1px solid var(--line-600);
}

.page-home .ph-rhythm-list li::before {
  content: "";
  position: absolute;
  left: -4px;
  top: 6px;
  width: 7px;
  height: 7px;
  background: var(--cyan-500);
}

.page-home .ph-rhythm-list li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-home .ph-rhythm-time {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.04em;
  color: var(--white-000);
}

.page-home .ph-rhythm-desc {
  margin: 7px 0 0;
  font-size: 14px;
  line-height: 1.68;
  color: var(--ph-text-faint);
}

.page-home .ph-rhythm-foot {
  margin: 26px 0 0;
  padding-top: 20px;
  border-top: 1px solid var(--line-600);
  font-size: 14px;
  line-height: 1.78;
  color: var(--ph-text-soft);
}

/* ---------- 服务边界与备案 ---------- */

.page-home .ph-scope {
  padding: var(--ph-section-y) 0;
  background: var(--ink-900);
  border-top: 1px solid var(--line-600);
}

.page-home .ph-scope-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 40px;
}

.page-home .ph-scope-title {
  margin: 0 0 16px;
  font-size: clamp(24px, 3.2vw, 40px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--white-000);
}

.page-home .ph-scope-text {
  margin: 0 0 24px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ph-text-soft);
  max-width: 52ch;
}

.page-home .ph-scope-list {
  list-style: none;
  margin: 0 0 28px;
  padding: 0;
  display: grid;
  gap: 14px;
}

.page-home .ph-scope-list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ph-text-soft);
}

.page-home .ph-scope-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 11px;
  width: 12px;
  height: 1px;
  background: var(--orange-500);
}

.page-home .ph-scope-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
}

.page-home .ph-scope-links a {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--cyan-500);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.36);
  padding-bottom: 2px;
  transition: color 200ms var(--ease), border-color 200ms var(--ease);
}

.page-home .ph-scope-links a:hover {
  color: var(--white-000);
  border-bottom-color: var(--white-000);
}

.page-home .ph-scope-aside {
  display: grid;
  gap: 12px;
  align-content: start;
  padding: 26px 24px;
  border: 1px solid var(--line-600);
  border-top: 2px solid var(--orange-500);
  background: var(--deep-800);
}

.page-home .ph-scope-label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--grey-400);
}

.page-home .ph-scope-icp {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--white-000);
}

.page-home .ph-scope-meta {
  margin: 0;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ph-text-faint);
  word-break: break-word;
}

/* ---------- 焦点可见性 ---------- */

.page-home a:focus-visible,
.page-home .ph-track-item:focus-within {
  outline: 2px solid var(--cyan-500);
  outline-offset: 3px;
}

/* ---------- 平板与桌面 ---------- */

@media (min-width: 768px) {
  .page-home .ph-track {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-home .ph-track-item {
    padding: 30px 14px 4px 0;
    border-left: 0;
  }

  .page-home .ph-track-item:hover,
  .page-home .ph-track-item:focus-within {
    background: transparent;
  }

  .page-home .ph-track-dot {
    top: -5px;
    left: 0;
  }

  .page-home .ph-track-item {
    border-top: 1px solid var(--line-600);
  }
}

@media (min-width: 900px) {
  .page-home .ph-hero-shell {
    grid-template-columns: 5fr 7fr;
    gap: clamp(32px, 5vw, 72px);
    align-items: stretch;
    min-height: clamp(600px, 78vh, 820px);
  }

  .page-home .ph-hero-copy {
    justify-content: center;
  }

  .page-home .ph-hero-visual {
    aspect-ratio: auto;
    height: 100%;
    min-height: 520px;
  }

  .page-home .ph-slice-grid {
    grid-template-columns: 1.55fr 1.05fr 0.85fr;
  }

  .page-home .ph-band-grid {
    grid-template-columns: 1.25fr 1fr;
    align-items: center;
    gap: clamp(32px, 5vw, 64px);
  }

  .page-home .ph-scope-grid {
    grid-template-columns: 1.45fr 0.7fr;
    gap: clamp(40px, 6vw, 88px);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-home .ph-gauge-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr) minmax(0, 1fr);
    gap: 0;
    align-items: stretch;
  }

  .page-home .ph-gauge-bridge {
    border-top: 0;
    border-left: 1px dashed var(--line-600);
    padding: 0 clamp(20px, 2.6vw, 40px);
  }

  .page-home .ph-bridge-text {
    padding-top: 0;
  }
}

@media (min-width: 1024px) {
  .page-home .ph-scale-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
    gap: 0;
  }

  .page-home .ph-rhythm {
    margin-left: clamp(40px, 5vw, 72px);
    padding-left: clamp(40px, 5vw, 72px);
    border-left: 1px solid var(--line-600);
  }
}

@media (max-width: 559px) {
  .page-home .ph-hero-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px 12px;
  }

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

  .page-home .ph-track-item {
    border-left: 1px solid var(--line-600);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }
}
</final>
</result>