.page-home {
  --page-func-accent: var(--red-arena);
  color: var(--ink);
  background: var(--paper);
}

/* ===================== 首屏：左右分屏 ===================== */
.page-home__hero {
  display: grid;
  grid-template-columns: 1fr;
  background: var(--green-deep);
}

.page-home__hero-story {
  position: relative;
  min-height: 380px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.page-home__hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.page-home__hero-veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(11, 61, 46, 0.96) 0%, rgba(11, 61, 46, 0.78) 46%, rgba(211, 47, 47, 0.42) 100%);
}

.page-home__hero-story::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  width: 42%;
  height: 28%;
  z-index: 1;
  background: var(--red-arena);
  transform: skewX(-14deg);
  transform-origin: bottom right;
  opacity: 0.9;
}

.page-home__hero-panel {
  position: relative;
  z-index: 2;
  padding: 3rem var(--gutter);
  color: var(--frost);
  max-width: 560px;
}

.page-home__hero-kicker {
  font-size: 0.8125rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--gold-dark);
  border-left: 2px solid var(--red-arena);
  padding-left: 0.75rem;
  margin-bottom: 1.25rem;
  font-weight: 500;
}

.page-home__hero-title {
  font-family: var(--font-sans);
  font-weight: 200;
  font-size: clamp(2.5rem, 9vw, 4.75rem);
  line-height: 1.06;
  letter-spacing: 0.02em;
  margin: 0 0 1.25rem;
  color: var(--frost);
}

.page-home__hero-lead {
  font-size: 1rem;
  line-height: 1.9;
  color: rgba(248, 252, 248, 0.84);
  margin-bottom: 1.75rem;
  max-width: 46ch;
}

.page-home__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.page-home__hero-panel .btn--ghost {
  border-color: var(--frost);
  color: var(--frost);
}

.page-home__hero-panel .btn--ghost:hover,
.page-home__hero-panel .btn--ghost:focus-visible {
  background: var(--frost);
  color: var(--green-deep);
  border-color: var(--frost);
}

.page-home__hero-trust {
  margin-top: 1.75rem;
  padding-top: 1rem;
  border-top: 1px solid rgba(192, 192, 192, 0.3);
  font-size: 0.8125rem;
  color: rgba(248, 252, 248, 0.62);
  letter-spacing: 0.05em;
}

.page-home__hero-board {
  background: var(--paper);
  padding: 2.5rem var(--gutter);
}

.page-home__board-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.625rem;
}

.page-home__board-title {
  font-family: var(--font-sans);
  font-weight: 200;
  font-size: 1.75rem;
  line-height: 1.3;
  margin: 0.5rem 0 0;
  color: var(--ink);
}

.page-home__board-desc {
  color: rgba(30, 30, 30, 0.68);
  font-size: 0.9375rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.page-home__matches {
  display: grid;
  gap: 0.875rem;
}

.page-home__match {
  background: #fffdf9;
  border: 1px solid var(--silver-metal);
  border-left: 3px solid var(--green-pitch);
  padding: 1.125rem 1.25rem;
  transition: border-color 0.35s var(--ease), transform 0.35s var(--ease), box-shadow 0.35s var(--ease);
}

.page-home__match:hover,
.page-home__match:focus-within {
  border-color: var(--red-arena);
  border-left-color: var(--red-arena);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.page-home__match-meta {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: rgba(30, 30, 30, 0.58);
  letter-spacing: 0.08em;
  margin-bottom: 0.55rem;
}

.page-home__match-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.page-home__team {
  font-weight: 600;
  font-size: 0.9375rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.page-home__score {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--red-arena);
  background: rgba(211, 47, 47, 0.08);
  padding: 0.15rem 0.7rem;
  border-radius: 4px;
  flex-shrink: 0;
  letter-spacing: 0.04em;
}

.page-home__match-history {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.75rem;
  color: rgba(30, 30, 30, 0.58);
  margin-top: 0.65rem;
}

.page-home__winrate {
  display: flex;
  height: 5px;
  margin-top: 0.55rem;
  border-radius: 999px;
  overflow: hidden;
  background: #e4dcd0;
  transition: height 0.35s var(--ease);
}

.page-home__match:hover .page-home__winrate,
.page-home__match:focus-within .page-home__winrate {
  height: 10px;
}

.page-home__winrate--home,
.page-home__winrate--away {
  display: block;
  height: 100%;
}

.page-home__winrate--home {
  background: var(--red-arena);
}

.page-home__winrate--away {
  background: var(--green-pitch);
}

.page-home__board-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--silver-metal);
  font-size: 0.75rem;
  color: rgba(30, 30, 30, 0.62);
}

.page-home__board-link {
  color: var(--red-arena);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
  font-weight: 600;
}

.page-home__board-link:hover,
.page-home__board-link:focus-visible {
  border-color: var(--red-arena);
  color: var(--green-deep);
}

/* ===================== 平台功能图谱 ===================== */
.page-home__functions {
  padding: 3.5rem 0;
  background:
    linear-gradient(rgba(192, 192, 192, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 192, 192, 0.16) 1px, transparent 1px),
    var(--paper);
  background-size: 28px 28px;
}

.page-home__section-head {
  max-width: 680px;
  margin-bottom: 2rem;
}

.page-home__functions-wrap {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.page-home__func-grid {
  display: grid;
  gap: 1rem;
}

.page-home__func-card {
  --page-func-accent: var(--red-arena);
  position: relative;
  background: #fffcf7;
  border: 1px solid var(--silver-metal);
  padding: 1.5rem 1.5rem 1.75rem;
  overflow: hidden;
  transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.page-home__func-card--team {
  --page-func-accent: var(--green-pitch);
}

.page-home__func-card--display {
  --page-func-accent: var(--gold-dark);
}

.page-home__func-card--feedback {
  --page-func-accent: #8c8c8c;
}

.page-home__func-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--page-func-accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}

.page-home__func-card:hover,
.page-home__func-card:focus-within {
  border-color: var(--page-func-accent);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.page-home__func-card:hover::before,
.page-home__func-card:focus-within::before {
  transform: scaleY(1);
}

.page-home__func-index {
  display: inline-block;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--page-func-accent);
  border: 1px solid var(--page-func-accent);
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  margin-bottom: 1rem;
}

.page-home__func-title {
  font-size: 1.3125rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.625rem;
}

.page-home__func-text {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(30, 30, 30, 0.72);
  margin-bottom: 0.875rem;
}

.page-home__func-link {
  display: inline-block;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--page-func-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-home__func-link:hover,
.page-home__func-link:focus-visible {
  border-color: var(--page-func-accent);
  color: var(--green-deep);
}

.page-home__functions-visual {
  position: relative;
}

.page-home__functions-visual img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 6%, 97% 94%, 4% 100%);
  filter: saturate(0.85);
}

.page-home__functions-caption {
  position: absolute;
  bottom: 1.75rem;
  left: 1.75rem;
  margin: 0;
  z-index: 1;
  color: var(--frost);
  font-size: 0.8125rem;
  font-weight: 600;
  background: rgba(11, 61, 46, 0.88);
  padding: 0.375rem 0.75rem;
  border-left: 3px solid var(--red-arena);
}

/* ===================== 数据底座 ===================== */
.page-home__data {
  position: relative;
  background: var(--green-deep);
  color: var(--frost);
  padding: 4rem 0;
  overflow: hidden;
}

.page-home__data::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 180px;
  height: 10px;
  background: var(--red-arena);
  transform: skewX(-24deg);
  transform-origin: top right;
  z-index: 1;
}

.page-home__data-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.page-home__data-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 61, 46, 0.86) 0%, rgba(11, 61, 46, 0.94) 100%);
}

.page-home__data-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.22;
}

.page-home__data-content {
  position: relative;
  z-index: 2;
}

.page-home__data-content .lead-text {
  color: rgba(248, 252, 248, 0.72);
  max-width: 640px;
  margin-bottom: 2.25rem;
}

.page-home__data-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.page-home__data-grid .statistic {
  background: rgba(248, 252, 248, 0.05);
  border: 1px solid rgba(192, 192, 192, 0.22);
  padding: 1.5rem 1.25rem;
  transition: background 0.35s var(--ease), border-color 0.35s var(--ease);
}

.page-home__data-grid .statistic:hover,
.page-home__data-grid .statistic:focus-within {
  background: rgba(248, 252, 248, 0.09);
  border-color: var(--red-arena);
}

.page-home__data-grid .statistic__value {
  display: block;
  font-size: clamp(1.875rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--frost);
  margin-bottom: 0.375rem;
  letter-spacing: 0.02em;
  transition: transform 0.35s var(--ease), text-shadow 0.35s var(--ease);
}

.page-home__data-grid .statistic:hover .statistic__value,
.page-home__data-grid .statistic:focus-within .statistic__value {
  transform: scale(1.05);
  text-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
}

.page-home__data-grid .statistic__label {
  font-size: 0.875rem;
  color: rgba(248, 252, 248, 0.64);
}

/* ===================== 专题观察 ===================== */
.page-home__insights {
  padding: 4rem 0;
}

.page-home__insights-grid {
  display: grid;
  gap: 1.5rem;
}

.page-home__insight-card {
  background: #fffcf7;
  border: 1px solid var(--silver-metal);
  transition: border-color 0.35s var(--ease), box-shadow 0.35s var(--ease), transform 0.35s var(--ease);
}

.page-home__insight-card:hover,
.page-home__insight-card:focus-within {
  border-color: var(--red-arena);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.page-home__insight-img {
  display: block;
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.page-home__insight-body {
  padding: 1.5rem;
}

.page-home__insight-card--plain .page-home__insight-body {
  background:
    linear-gradient(rgba(192, 192, 192, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 192, 192, 0.1) 1px, transparent 1px),
    var(--green-deep);
  background-size: 24px 24px;
  min-height: 100%;
}

.page-home__insight-title {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.5;
  margin: 0.875rem 0 0.625rem;
}

.page-home__insight-card--plain .page-home__insight-title {
  color: var(--frost);
}

.page-home__insight-text {
  font-size: 0.9375rem;
  line-height: 1.8;
  color: rgba(30, 30, 30, 0.7);
  margin-bottom: 1.25rem;
}

.page-home__insight-card--plain .page-home__insight-text {
  color: rgba(248, 252, 248, 0.76);
}

.page-home__insight-metric {
  font-size: 3.5rem;
  font-weight: 200;
  line-height: 1;
  color: var(--gold-dark);
  margin: 0.75rem 0 1.25rem;
}

.page-home__insight-link {
  display: inline-block;
  font-weight: 600;
  font-size: 0.9375rem;
  color: var(--red-arena);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}

.page-home__insight-card--plain .page-home__insight-link {
  color: var(--gold-dark);
}

.page-home__insight-link:hover,
.page-home__insight-link:focus-visible {
  border-color: currentColor;
  color: var(--green-deep);
}

/* ===================== 问题反馈与帮助 ===================== */
.page-home__support {
  position: relative;
  background: var(--green-deep);
  color: var(--frost);
  padding: 4rem 0;
  overflow: hidden;
}

.page-home__support::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 6px;
  background: linear-gradient(90deg, var(--silver-metal) 0%, var(--red-arena) 55%, var(--gold-dark) 100%);
}

.page-home__support-red {
  position: absolute;
  top: -18%;
  right: -14%;
  width: 44%;
  height: 140%;
  background: var(--red-arena);
  transform: rotate(-12deg);
  opacity: 0.88;
}

.page-home__support-inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2rem;
}

.page-home__support-text {
  line-height: 1.9;
  color: rgba(248, 252, 248, 0.82);
  max-width: 640px;
}

.page-home__support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.page-home__support-actions .btn--ghost {
  border-color: var(--frost);
  color: var(--frost);
}

.page-home__support-actions .btn--ghost:hover,
.page-home__support-actions .btn--ghost:focus-visible {
  background: var(--frost);
  color: var(--green-deep);
  border-color: var(--frost);
}

/* ===================== 桌面端布局 ===================== */
@media (min-width: 1024px) {
  .page-home__hero {
    grid-template-columns: 40% 60%;
    min-height: 660px;
  }

  .page-home__hero-story {
    min-height: 100%;
  }

  .page-home__hero-panel {
    padding: 4rem 3rem;
  }

  .page-home__hero-board {
    padding: 4rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .page-home__functions {
    padding: 6rem 0;
  }

  .page-home__functions-wrap {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }

  .page-home__func-grid {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .page-home__data {
    padding: 6rem 0;
  }

  .page-home__data-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }

  .page-home__insights {
    padding: 6rem 0;
  }

  .page-home__insights-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .page-home__support {
    padding: 5.5rem 0;
  }

  .page-home__support-inner {
    grid-template-columns: 2fr 1fr;
    align-items: center;
  }
}