.page-platform {
  --pp-cell-bg: color-mix(in srgb, var(--color-contrast-ink) 12%, transparent);
  --pp-cell-bg-hover: color-mix(in srgb, var(--color-contrast-ink) 22%, transparent);
}

/* ---------- 首屏 ---------- */

.page-platform .entry-hero {
  position: relative;
  overflow: hidden;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  padding: var(--space-6) 0 var(--space-8);
}

.page-platform .entry-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-platform .entry-hero__bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
}

.page-platform .entry-hero__bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
}

.page-platform .entry-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-platform .entry-hero__crumbs {
  margin-bottom: var(--space-3);
  color: var(--color-contrast-ink);
}

.page-platform .entry-hero__crumbs a {
  color: var(--color-contrast-ink);
  text-decoration: none;
}

.page-platform .entry-hero__crumbs a:hover {
  text-decoration: underline;
}

.page-platform .entry-hero__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-display);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-primary-ink);
}

.page-platform .entry-hero__dek {
  max-width: var(--measure);
  margin: 0 0 var(--space-4);
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-platform .hero-figs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-3);
  margin: 0;
  padding: var(--space-3) 0 0;
  list-style: none;
  border-top: var(--border-thick) solid var(--color-contrast-line);
}

.page-platform .hero-figs__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.page-platform .hero-figs__v {
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  color: var(--color-contrast-accent);
}

.page-platform .hero-figs__k {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
}

/* 九宫格 */

.page-platform .mx__hint {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xs);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-platform .mx {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--border-thick);
}

.page-platform .mx-cell {
  position: relative;
  display: flex;
  align-items: flex-end;
  min-height: calc(var(--space-8) * 1.6);
  padding: var(--space-2);
  overflow: hidden;
  background: var(--pp-cell-bg);
  border-radius: var(--radius-sm);
  color: var(--color-contrast-ink);
  text-decoration: none;
  transition: background-color 160ms linear, color 160ms linear;
}

.page-platform .mx-cell--live {
  background: var(--color-contrast-accent);
  color: var(--color-accent-ink);
}

.page-platform .mx-cell:hover,
.page-platform .mx-cell:focus-visible {
  background: var(--pp-cell-bg-hover);
  color: var(--color-primary-ink);
}

.page-platform .mx-cell--live:hover,
.page-platform .mx-cell--live:focus-visible {
  background: var(--color-accent);
  color: var(--color-accent-ink);
}

.page-platform .mx-cell__label {
  position: relative;
  z-index: 1;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  line-height: 1.2;
}

.page-platform .mx-cell__who {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--space-1) var(--space-2);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-xs);
  line-height: 1.35;
  opacity: 0;
  transition: opacity 160ms linear;
}

.page-platform .mx-cell:hover .mx-cell__who,
.page-platform .mx-cell:focus-visible .mx-cell__who {
  opacity: 1;
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

/* ---------- 分组索引条 ---------- */

.page-platform .group-index {
  background: var(--color-surface-deep);
  border-bottom: var(--border-thick) solid var(--color-line);
}

.page-platform .group-index__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin: 0;
  padding: var(--space-2) 0;
  list-style: none;
}

.page-platform .group-index__link {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color 160ms linear, color 160ms linear;
}

.page-platform .group-index__link:hover,
.page-platform .group-index__link:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-platform .group-index__n {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

.page-platform .group-index__link:hover .group-index__n,
.page-platform .group-index__link:focus-visible .group-index__n {
  color: var(--color-primary-soft);
}

/* ---------- 分组与色块反转 ---------- */

.page-platform .band {
  padding: var(--space-8) 0;
}

.page-platform .band--plain {
  background: var(--color-surface);
  color: var(--color-ink);
}

.page-platform .band--alt {
  background: var(--color-surface-alt);
  color: var(--color-ink);
}

.page-platform .band--deep {
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.page-platform .band--primary {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-platform .group-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2);
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-4);
  border-bottom: var(--border-thick) solid var(--color-line);
}

.page-platform .group-head__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-2xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-platform .group-head__count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-platform .group-head__note {
  flex: 1 1 100%;
  margin: 0;
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-platform .band--primary .group-head {
  border-bottom-color: var(--color-primary-soft);
}

.page-platform .band--primary .group-head__count,
.page-platform .band--primary .group-head__note {
  color: var(--color-primary-soft);
}

.page-platform .group__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
}

/* ---------- 项目卡 ---------- */

.page-platform .ecard {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  color: var(--color-ink);
  border-radius: var(--radius-md);
}

.page-platform .band--plain .ecard,
.page-platform .band--alt .ecard {
  background: var(--color-surface);
}

.page-platform .band--alt .ecard {
  background: var(--color-surface);
}

.page-platform .band--primary .ecard {
  background: var(--color-surface);
  color: var(--color-ink);
}

.page-platform .ecard__title {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

.page-platform .ecard__desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-ink-soft);
}

.page-platform .ecard__frame {
  margin: 0;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  border-radius: var(--radius-sm);
  background: var(--color-surface-deep);
}

.page-platform .ecard__frame img {
  display: block;
  width: 100%;
  height: 100%;
  max-width: 100%;
  object-fit: cover;
}

.page-platform .ecard__facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: var(--space-1) var(--space-2);
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thick) solid var(--color-line);
}

.page-platform .ecard__facts dt {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-sm);
  color: var(--color-ink-muted);
}

.page-platform .ecard__facts dd {
  margin: 0;
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink-soft);
}

.page-platform .ecard__go {
  margin: 0;
  padding-top: var(--space-2);
  border-top: var(--border-thin) solid var(--color-line);
  font-size: var(--text-sm);
  line-height: 1.5;
  color: var(--color-ink);
}

.page-platform .ecard__go .btn {
  display: inline-block;
}

/* ---------- 赔率图 ---------- */

.page-platform .odds-chart {
  margin: 0;
  padding: var(--space-2);
  background: var(--color-contrast-surface);
  border-radius: var(--radius-sm);
}

.page-platform .odds-chart .panel__title {
  display: block;
  margin-bottom: var(--space-2);
  font-size: var(--text-xs);
  line-height: 1.4;
  color: var(--color-contrast-ink);
}

.page-platform .odds-chart__svg {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
}

.page-platform .odds-chart__grid {
  stroke: var(--color-contrast-line);
  stroke-width: 1;
}

.page-platform .odds-chart__s1 {
  fill: none;
  stroke: var(--color-contrast-ink);
  stroke-width: 2;
  stroke-linejoin: miter;
}

.page-platform .odds-chart__s2 {
  fill: none;
  stroke: var(--color-contrast-accent);
  stroke-width: 2;
  stroke-linejoin: miter;
}

/* ---------- 号码带 ---------- */

.page-platform .numband {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(var(--space-8), 1fr));
  gap: var(--border-thick);
  margin: var(--space-2) 0 0;
}

.page-platform .numband__cell {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  background: var(--color-surface);
  border-radius: var(--radius-sm);
  cursor: default;
  transition: background-color 160ms linear, color 160ms linear;
}

.page-platform .numband__cell:hover,
.page-platform .numband__cell:focus-visible {
  background: var(--color-primary);
  color: var(--color-primary-ink);
}

.page-platform .numband__no {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  line-height: 1;
}

.page-platform .numband__pop {
  position: absolute;
  left: 50%;
  bottom: calc(100% + var(--space-1));
  z-index: 5;
  width: max-content;
  max-width: calc(var(--space-8) * 4);
  padding: var(--space-1) var(--space-2);
  transform: translateX(-50%);
  background: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  font-size: var(--text-xs);
  line-height: 1.4;
  border-radius: var(--radius-sm);
  opacity: 0;
  pointer-events: none;
  transition: opacity 160ms linear;
}

.page-platform .numband__cell:hover .numband__pop,
.page-platform .numband__cell:focus-visible .numband__pop {
  opacity: 1;
}

/* ---------- 行动出口 ---------- */

.page-platform .next__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

.page-platform .next__title {
  margin: 0 0 var(--space-3);
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-3xl);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-contrast-ink);
}

.page-platform .next__desc {
  margin: 0;
  font-size: var(--text-base);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

.page-platform .next__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-2);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-platform .next__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  padding: var(--space-3);
  background: color-mix(in srgb, var(--color-contrast-ink) 9%, transparent);
  border-left: var(--border-thick) solid var(--color-contrast-accent);
  border-radius: var(--radius-sm);
}

.page-platform .next__itemtitle {
  margin: 0;
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  font-size: var(--text-lg);
  line-height: var(--leading-heading);
  color: var(--color-contrast-ink);
}

.page-platform .next__itemdesc {
  margin: 0 0 var(--space-1);
  font-size: var(--text-sm);
  line-height: var(--leading-body);
  color: var(--color-contrast-ink);
}

/* ---------- 响应式 ---------- */

@media (min-width: 700px) {
  .page-platform .hero-figs {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-platform .entry-hero {
    padding: var(--space-8) 0 var(--section-y);
  }

  .page-platform .entry-hero__inner {
    grid-template-columns: repeat(11, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: end;
  }

  .page-platform .entry-hero__lead {
    grid-column: span 6;
  }

  .page-platform .entry-hero__matrix {
    grid-column: span 5;
  }

  .page-platform .band {
    padding: var(--section-y) 0;
  }

  .page-platform .band.section--tight {
    padding: var(--space-8) 0;
  }

  .page-platform .group__grid {
    grid-template-columns: repeat(11, minmax(0, 1fr));
  }

  .page-platform .g-4 { grid-column: span 4; }
  .page-platform .g-5 { grid-column: span 5; }
  .page-platform .g-6 { grid-column: span 6; }
  .page-platform .g-7 { grid-column: span 7; }
  .page-platform .g-11 { grid-column: span 11; }

  .page-platform .next__grid {
    grid-template-columns: repeat(11, minmax(0, 1fr));
    gap: var(--gutter);
    align-items: start;
  }

  .page-platform .next__lead {
    grid-column: span 4;
  }

  .page-platform .next__list {
    grid-column: span 7;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-platform .mx-cell,
  .page-platform .mx-cell__who,
  .page-platform .group-index__link,
  .page-platform .numband__cell,
  .page-platform .numband__pop {
    transition: none;
  }
}
<<<END>>>