.page-home {
  --tone-1: #1B7FB8;
  --tone-2: #FF6A1A;
  --tone-3: #FFB020;
  --tone-4: #4FA3D1;
  --tone-5: #D8E9F2;
  --tone-6: #8A96A0;
  background: var(--arena);
  color: var(--snow);
  overflow-x: hidden;
}

.page-home .section {
  padding: 56px 0;
}

.page-home .section-lead {
  max-width: 62ch;
  margin: 0 0 24px;
  font-size: 17px;
  line-height: 1.85;
}

.page-home h2 {
  margin: 14px 0 18px;
  font-size: clamp(26px, 5.2vw, 40px);
  line-height: 1.12;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.page-home h3 {
  margin: 0 0 12px;
  font-size: 20px;
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.page-home .eyebrow {
  color: var(--cold);
  margin: 0;
}

.page-home .eyebrow .index-num {
  color: var(--orange);
}

/* ---------- 首屏 ---------- */
.page-home .hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 44px 0 84px;
  background: linear-gradient(158deg, var(--deep-lake) 0%, #0A2C42 48%, var(--night) 100%);
}

.page-home .hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.page-home .hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.24;
}

.page-home .hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(79, 163, 209, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 163, 209, 0.16) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.25) 62%, transparent 92%);
  mask-image: linear-gradient(180deg, #000 0%, rgba(0, 0, 0, 0.25) 62%, transparent 92%);
  pointer-events: none;
}

.page-home .hero-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 34px;
  position: relative;
  z-index: 1;
}

.page-home .hero h1 {
  margin: 18px 0 22px;
  font-size: clamp(40px, 10vw, 76px);
  line-height: 0.98;
  font-weight: 900;
  letter-spacing: -0.035em;
}

.page-home .hero-mark {
  position: relative;
  color: var(--orange);
}

.page-home .hero-mark::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.04em;
  height: 8px;
  background: var(--orange);
  opacity: 0.26;
}

.page-home .hero-lead {
  max-width: 46ch;
  margin: 0 0 26px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--mist);
}

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

.page-home .hero-facts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 18px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid rgba(79, 163, 209, 0.3);
}

.page-home .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  min-width: 0;
}

.page-home .fact-num {
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--snow);
  letter-spacing: -0.02em;
}

.page-home .fact-label {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cold);
}

/* 场馆面板 */
.page-home .venue-panel {
  position: relative;
  padding: 22px 20px 20px;
  background: rgba(7, 26, 38, 0.84);
  border: 1px solid rgba(79, 163, 209, 0.34);
  clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 20px, 100% 100%, 0 100%);
}

.page-home .venue-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 84px;
  height: 3px;
  background: var(--orange);
}

.page-home .venue-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.page-home .venue-kicker {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.page-home .venue-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0 -4px 16px;
  border-bottom: 1px solid rgba(79, 163, 209, 0.24);
}

.page-home .venue-tab {
  appearance: none;
  border: 0;
  background: transparent;
  padding: 9px 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--cold);
  cursor: pointer;
  box-shadow: inset 0 -2px 0 transparent;
  transition: color var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .venue-tab:hover {
  color: var(--snow);
  background: rgba(27, 127, 184, 0.16);
}

.page-home .venue-tab[aria-selected="true"] {
  color: var(--snow);
  background: rgba(27, 127, 184, 0.22);
  box-shadow: inset 0 -2px 0 var(--orange);
}

.page-home .venue-tab:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-home .venue-lead {
  margin: 0 0 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.86);
}

.page-home .venue-list {
  display: grid;
  gap: 10px;
  margin: 0;
}

.page-home .venue-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 9px;
  border-bottom: 1px dashed rgba(79, 163, 209, 0.24);
}

.page-home .venue-list dt {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cold);
}

.page-home .venue-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--snow);
  text-align: right;
}

.page-home .venue-link {
  display: inline-block;
  margin-top: 18px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .venue-link:hover {
  color: var(--amber);
  transform: translateX(3px);
}

.page-home .hero-track {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 90px;
  color: var(--ice);
  opacity: 0.55;
  pointer-events: none;
}

/* ---------- 联赛专题 ---------- */
.page-home .topics {
  background: linear-gradient(180deg, var(--night) 0%, var(--arena) 34%);
}

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

.page-home .rail-caption {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  color: var(--cold);
}

.page-home .rail-axis {
  display: grid;
  gap: 6px;
  align-content: start;
}

.page-home .axis-item {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  text-decoration: none;
  color: var(--snow);
  background: rgba(44, 52, 59, 0.62);
  box-shadow: inset 4px 0 0 var(--tone);
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .axis-item:hover,
.page-home .axis-item:focus-visible {
  background: rgba(44, 52, 59, 0.95);
  box-shadow: inset 8px 0 0 var(--tone);
}

.page-home .axis-item:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-home .axis-item--1 { --tone: var(--tone-1); }
.page-home .axis-item--2 { --tone: var(--tone-2); }
.page-home .axis-item--3 { --tone: var(--tone-3); }
.page-home .axis-item--4 { --tone: var(--tone-4); }
.page-home .axis-item--5 { --tone: var(--tone-5); }
.page-home .axis-item--6 { --tone: var(--tone-6); }

.page-home .axis-num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--cold);
}

.page-home .axis-name {
  font-size: 17px;
  font-weight: 600;
}

.page-home .axis-more {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--orange);
  text-decoration: none;
}

.page-home .axis-more:hover {
  color: var(--amber);
}

.page-home .topic-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 16px;
}

.page-home .topic-card {
  padding: 22px 20px;
  background: var(--graphite);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 18px), calc(100% - 18px) 100%, 0 100%);
}

.page-home .topic-card:nth-child(2) {
  background: rgba(11, 74, 111, 0.42);
  clip-path: polygon(18px 0, 100% 0, 100% 100%, 0 100%, 0 18px);
}

.page-home .topic-card p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.8);
}

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

.page-home .tag-row li {
  padding: 5px 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ice);
  border: 1px solid rgba(79, 163, 209, 0.4);
}

/* ---------- 场馆区（浅色分区） ---------- */
.page-home .venue-band {
  background: var(--mist);
  color: var(--arena);
}

.page-home .venue-band .eyebrow {
  color: rgba(26, 31, 36, 0.62);
}

.page-home .venue-band .eyebrow .index-num {
  color: var(--lake);
}

.page-home .venue-band .section-lead {
  color: rgba(26, 31, 36, 0.82);
}

.page-home .venue-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.page-home .venue-figure {
  margin: 0;
}

.page-home .venue-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-home .venue-figure figcaption,
.page-home .download-figure figcaption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: rgba(26, 31, 36, 0.6);
}

.page-home .venue-points {
  display: grid;
  gap: 14px;
  margin: 0 0 22px;
  padding: 0;
  list-style: none;
}

.page-home .venue-points li {
  position: relative;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.8;
  color: rgba(26, 31, 36, 0.86);
}

.page-home .venue-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 10px;
  height: 3px;
  background: var(--lake);
}

.page-home .venue-points strong {
  color: var(--arena);
  font-weight: 700;
}

.page-home .link-arrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--lake);
  text-decoration: none;
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-home .link-arrow:hover {
  color: var(--deep-lake);
  transform: translateX(3px);
}

/* ---------- 轨迹分隔带 ---------- */
.page-home .track-band {
  line-height: 0;
  background: var(--night);
}

.page-home .track-band img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  max-height: 300px;
  object-fit: cover;
  opacity: 0.72;
}

/* ---------- 更新速览 ---------- */
.page-home .updates {
  background: var(--arena);
}

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

.page-home .update-item {
  margin-bottom: 10px;
  background: rgba(44, 52, 59, 0.55);
  border: 1px solid rgba(79, 163, 209, 0.22);
  transition: border-color var(--dur) var(--ease);
}

.page-home .update-item:hover {
  border-color: rgba(79, 163, 209, 0.55);
}

.page-home .update-item summary {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  color: var(--snow);
}

.page-home .update-item summary::-webkit-details-marker {
  display: none;
}

.page-home .update-item summary:focus-visible {
  outline: 2px solid var(--ice);
  outline-offset: 2px;
}

.page-home .update-caret {
  margin-left: auto;
  flex: none;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--orange);
}

.page-home .update-caret::before {
  content: "+";
}

.page-home .update-item[open] .update-caret::before {
  content: "–";
}

.page-home .update-item p {
  margin: 0;
  padding: 0 16px 16px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.76);
}

/* ---------- 下载 ---------- */
.page-home .download {
  background: linear-gradient(180deg, var(--arena) 0%, var(--night) 100%);
}

.page-home .download-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: center;
}

.page-home .spec-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0 0 26px;
  padding: 20px 0 0;
  border-top: 1px solid rgba(79, 163, 209, 0.3);
}

.page-home .spec-grid dt {
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--cold);
  margin-bottom: 6px;
}

.page-home .spec-grid dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--snow);
}

.page-home .download-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 18px;
}

.page-home .download-figure {
  margin: 0;
}

.page-home .download-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(79, 163, 209, 0.28);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%);
}

.page-home .download-figure figcaption {
  color: var(--cold);
}

/* ---------- 选择理由 ---------- */
.page-home .reasons {
  background: linear-gradient(180deg, var(--graphite) 0%, var(--night) 100%);
}

.page-home .reason-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  margin-top: 26px;
}

.page-home .reason {
  padding: 22px 20px;
  background: rgba(7, 26, 38, 0.6);
  border-top: 3px solid var(--ice);
}

.page-home .reason:nth-child(2) {
  border-top-color: var(--orange);
}

.page-home .reason:nth-child(3) {
  border-top-color: var(--amber);
}

.page-home .reason-num {
  margin: 0 0 6px;
  font-family: var(--font-mono);
  font-size: clamp(34px, 8vw, 52px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--snow);
}

.page-home .reason h3 {
  margin-bottom: 10px;
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--ice);
}

.page-home .reason p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(247, 250, 252, 0.78);
}

.page-home .trust-line {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 30px 0 0;
  padding: 22px 0 0;
  list-style: none;
  border-top: 1px solid rgba(79, 163, 209, 0.26);
}

.page-home .trust-line li {
  position: relative;
  padding-left: 14px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--cold);
}

.page-home .trust-line li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 6px;
  height: 6px;
  background: var(--amber);
  transform: skewX(-18deg);
}

/* ---------- 联系 ---------- */
.page-home .contact-band {
  position: relative;
  background: var(--night);
  padding-bottom: 64px;
}

.page-home .contact-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: repeating-linear-gradient(115deg, var(--orange) 0 14px, transparent 14px 28px);
  opacity: 0.7;
}

.page-home .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

.page-home .contact-copy .btn {
  margin-top: 4px;
}

.page-home .contact-card {
  padding: 24px 20px;
  background: rgba(11, 74, 111, 0.35);
  border: 1px solid rgba(79, 163, 209, 0.3);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 20px), calc(100% - 20px) 100%, 0 100%);
}

.page-home .contact-card .contact-list {
  display: grid;
  gap: 14px;
  margin: 0 0 18px;
}

.page-home .contact-card .contact-item {
  display: grid;
  gap: 4px;
}

.page-home .contact-card .contact-item dt {
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--cold);
}

.page-home .contact-card .contact-item dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.6;
  color: var(--snow);
  word-break: break-word;
}

.page-home .contact-card .contact-note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed rgba(79, 163, 209, 0.3);
  font-size: 13px;
  line-height: 1.8;
  color: var(--cold);
}

/* ---------- 断点 ---------- */
@media (min-width: 768px) {
  .page-home .section {
    padding: 76px 0;
  }

  .page-home .hero {
    padding: 64px 0 104px;
  }

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

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

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

  .page-home .venue-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 40px;
  }

  .page-home .updates-layout {
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
    gap: 44px;
    align-items: start;
  }

  .page-home .download-layout {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    gap: 44px;
  }

  .page-home .contact-layout {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 44px;
  }
}

@media (min-width: 1024px) {
  .page-home .hero-shell {
    grid-template-columns: minmax(0, 1.4fr) minmax(300px, 0.7fr);
    gap: 48px;
    align-items: start;
  }

  .page-home .topic-split {
    grid-template-columns: minmax(200px, 23%) minmax(0, 1fr);
    gap: 44px;
    align-items: start;
  }

  .page-home .rail-axis {
    position: sticky;
    top: 108px;
  }

  .page-home .topic-main .section-lead {
    font-size: 17px;
  }
}

@media (min-width: 1280px) {
  .page-home .section {
    padding: 88px 0;
  }

  .page-home .hero {
    padding: 76px 0 120px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .venue-tab,
  .page-home .axis-item,
  .page-home .venue-link,
  .page-home .link-arrow,
  .page-home .update-item {
    transition: none;
  }

  .page-home .venue-link:hover,
  .page-home .link-arrow:hover {
    transform: none;
  }
}
<<<END>>>