.page-home {
  --ph-primary: #E53935;
  --ph-accent: #FFC107;
  --ph-bg: #121212;
  --ph-surface: #2A2A2A;
  --ph-surface-hover: #333333;
  --ph-text: #FFFFFF;
  --ph-text-secondary: #B0B0B0;
  --ph-text-data: #FFC107;
  --ph-radius: 12px;
  --ph-radius-lg: 20px;
  --ph-radius-pill: 9999px;
  --ph-font-heading: 'Playfair Display','Georgia',serif;
  --ph-font-body: 'Inter','system-ui','Segoe UI',sans-serif;
  --ph-font-data: 'Fira Code','Consolas','Courier New',monospace;
  --ph-spacing-lg: 1.5rem;
  --ph-spacing-xl: 2rem;
  --ph-spacing-2xl: 3rem;
  --ph-max-width: 1200px;
  --ph-transition-fast: 0.15s ease;
  --ph-transition-base: 0.25s ease;
}

.page-home {
  background: var(--ph-bg);
  color: var(--ph-text);
  font-family: var(--ph-font-body);
}

/* ===== Hero 首屏 ===== */
.page-home__hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ph-spacing-lg);
  padding: calc(var(--ph-spacing-2xl) + 64px) var(--ph-spacing-lg) var(--ph-spacing-2xl);
  align-items: start;
  position: relative;
  overflow: hidden;
}

.page-home__hero::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 60%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(229,57,53,0.12), transparent 70%);
  pointer-events: none;
}

.page-home__hero-kicker {
  display: inline-block;
  font-family: var(--ph-font-data);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--ph-accent);
  border: 1px solid rgba(255,193,7,0.3);
  padding: 0.25rem 0.75rem;
  border-radius: var(--ph-radius-pill);
  margin-bottom: var(--ph-spacing-lg);
}

.page-home__hero-title {
  font-family: var(--ph-font-heading);
  font-size: 2.8rem;
  font-weight: 400;
  line-height: 1.08;
  margin: 0 0 var(--ph-spacing-lg);
  letter-spacing: -0.02em;
  color: var(--ph-text);
}

.page-home__hero-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ph-text-secondary);
  max-width: 32rem;
  margin: 0 0 var(--ph-spacing-xl);
}

.page-home__hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ph-spacing-md);
  margin-bottom: var(--ph-spacing-lg);
}

.page-home__hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* 右侧特性列表 */
.page-home__hero-right {
  display: grid;
  gap: 0.75rem;
  margin-top: var(--ph-spacing-lg);
}

.page-home__hero-feature {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  background: var(--ph-surface);
  border-radius: var(--ph-radius);
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--ph-transition-fast), border-color var(--ph-transition-fast);
}

.page-home__hero-feature:hover {
  transform: translateY(-2px);
  border-color: rgba(255,193,7,0.3);
}

.page-home__feature-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.page-home__feature-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--ph-text);
}

.page-home__feature-desc {
  width: 100%;
  font-size: 0.75rem;
  color: var(--ph-text-secondary);
  margin-top: 0.125rem;
}

/* 轮播 */
.page-home__carousel {
  position: relative;
  background: var(--ph-surface);
  border-radius: var(--ph-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
}

.page-home__carousel-track {
  display: flex;
  transition: transform var(--ph-transition-base);
}

.page-home__carousel-slide {
  min-width: 100%;
  box-sizing: border-box;
}

.page-home__panel-card {
  padding: var(--ph-spacing-lg);
}

.page-home__panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--ph-spacing-md);
}

.page-home__panel-league {
  font-family: var(--ph-font-heading);
  font-size: 1.125rem;
  font-weight: 600;
}

.page-home__panel-img {
  width: 100%;
  height: auto;
  border-radius: var(--ph-radius);
  margin-bottom: var(--ph-spacing-md);
  display: block;
}

.page-home__panel-stats {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  gap: 0.5rem;
}

.page-home__panel-stats .data-card {
  background: rgba(255,255,255,0.05);
  border-radius: var(--ph-radius);
  padding: 0.75rem;
  text-align: center;
}

.page-home__panel-stats .data-label {
  display: block;
  font-size: 0.7rem;
  color: var(--ph-text-secondary);
  margin-bottom: 0.25rem;
}

.page-home__panel-stats .data-value {
  display: block;
  font-family: var(--ph-font-data);
  font-size: 1.25rem;
  color: var(--ph-text-data);
}

.page-home__carousel-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--ph-spacing-md);
  padding: 0 0 var(--ph-spacing-md);
}

.page-home__carousel-btn {
  background: var(--ph-surface);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--ph-text);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--ph-transition-fast), border-color var(--ph-transition-fast);
}

.page-home__carousel-btn:hover {
  background: var(--ph-primary);
  border-color: var(--ph-primary);
}

.page-home__carousel-dots {
  display: flex;
  gap: 0.375rem;
}

.page-home__carousel-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  transition: background var(--ph-transition-fast);
}

.page-home__carousel-dot.active {
  background: var(--ph-accent);
}

/* ===== 通用章节 ===== */
.page-home__section {
  padding: var(--ph-spacing-2xl) var(--ph-spacing-lg);
}

.page-home__section-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: var(--ph-spacing-xl);
}

.page-home__section-link {
  align-self: flex-start;
  font-size: 0.875rem;
  color: var(--ph-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ph-transition-fast);
}

.page-home__section-link:hover {
  border-bottom-color: var(--ph-accent);
}

/* ===== 数据面板网格 ===== */
.page-home__panel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ph-spacing-lg);
}

.page-home__panel-item {
  background: var(--ph-surface);
  border-radius: var(--ph-radius-lg);
  padding: var(--ph-spacing-lg);
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--ph-transition-fast), border-color var(--ph-transition-fast);
}

.page-home__panel-item:hover {
  transform: translateY(-2px);
  border-color: rgba(229,57,53,0.3);
}

.page-home__panel-icon {
  margin-bottom: var(--ph-spacing-md);
}

.page-home__panel-title {
  font-family: var(--ph-font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.page-home__panel-desc {
  font-size: 0.875rem;
  color: var(--ph-text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--ph-spacing-md);
}

.page-home__panel-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

/* ===== 战报瀑布流 ===== */
.page-home__report-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ph-spacing-lg);
}

.page-home__report-card {
  background: var(--ph-surface);
  border-radius: var(--ph-radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--ph-transition-fast), box-shadow var(--ph-transition-fast);
}

.page-home__report-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.page-home__report-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-home__report-body {
  padding: var(--ph-spacing-lg);
}

.page-home__report-title {
  font-family: var(--ph-font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  line-height: 1.3;
}

.page-home__report-summary {
  font-size: 0.875rem;
  color: var(--ph-text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--ph-spacing-md);
}

.page-home__report-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.btn-sm {
  padding: 0.375rem 1rem;
  font-size: 0.8rem;
}

/* ===== 版本亮点 ===== */
.page-home__highlights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ph-spacing-lg);
}

.page-home__highlight-item {
  display: flex;
  gap: var(--ph-spacing-md);
  background: var(--ph-surface);
  border-radius: var(--ph-radius-lg);
  padding: var(--ph-spacing-lg);
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--ph-transition-fast), border-color var(--ph-transition-fast);
  cursor: default;
}

.page-home__highlight-item:hover {
  transform: translateY(-2px);
  border-color: rgba(255,193,7,0.25);
}

.page-home__highlight-num {
  font-family: var(--ph-font-heading);
  font-size: 2rem;
  font-weight: 700;
  color: var(--ph-accent);
  line-height: 1;
  min-width: 2.8rem;
  opacity: 0.6;
}

.page-home__highlight-content {
  flex: 1;
}

.page-home__highlight-icon {
  width: 3rem;
  height: 3rem;
  border-radius: var(--ph-radius);
  float: right;
  margin: 0 0 0.5rem 0.75rem;
  object-fit: cover;
}

.page-home__highlight-title {
  font-family: var(--ph-font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.page-home__highlight-desc {
  font-size: 0.875rem;
  color: var(--ph-text-secondary);
  line-height: 1.6;
  margin: 0 0 var(--ph-spacing-md);
}

.page-home__highlight-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

/* ===== 数据对照 ===== */
.page-home__compare-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--ph-spacing-xl);
}

.page-home__compare-desc {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--ph-text-secondary);
  margin: 0 0 var(--ph-spacing-lg);
}

.page-home__compare-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--ph-spacing-xl);
  display: grid;
  gap: 0.75rem;
}

.page-home__compare-item {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.9rem;
  color: var(--ph-text-secondary);
  line-height: 1.5;
}

.page-home__compare-item::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--ph-accent);
  font-weight: 700;
}

.page-home__compare-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ph-spacing-md);
}

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

.page-home__compare-card {
  background: var(--ph-surface);
  border-radius: var(--ph-radius-lg);
  padding: var(--ph-spacing-lg);
  border: 1px solid rgba(255,255,255,0.06);
}

.page-home__compare-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--ph-spacing-lg);
  flex-wrap: wrap;
  gap: 0.5rem;
}

.page-home__compare-version {
  font-family: var(--ph-font-data);
  font-size: 0.8rem;
  color: var(--ph-text-data);
}

.page-home__compare-bars {
  display: grid;
  gap: var(--ph-spacing-md);
}

.page-home__compare-bar-group {
  display: grid;
  grid-template-columns: 6rem 1fr;
  gap: 0.5rem;
  align-items: center;
}

.page-home__compare-bar-label {
  font-size: 0.8rem;
  color: var(--ph-text-secondary);
  text-align: right;
}

.page-home__compare-bar {
  position: relative;
  height: 1.5rem;
  background: rgba(255,255,255,0.08);
  border-radius: var(--ph-radius-pill);
  display: flex;
  align-items: center;
  padding: 0 0.5rem;
  font-size: 0.7rem;
  font-family: var(--ph-font-data);
  color: var(--ph-text-secondary);
  transition: width var(--ph-transition-base);
  overflow: hidden;
}

.page-home__compare-bar span {
  position: relative;
  z-index: 1;
}

.page-home__compare-bar::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  background: var(--ph-primary);
  opacity: 0.3;
  border-radius: var(--ph-radius-pill);
  width: 100%;
}

.page-home__compare-bar--new::before {
  background: var(--ph-accent);
  opacity: 0.5;
}

.page-home__compare-bar--new {
  color: var(--ph-text);
}

/* ===== 旁注栏 ===== */
.page-home__sidenote-bar {
  background: var(--ph-surface);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: var(--ph-spacing-lg);
}

.page-home__sidenote-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--ph-spacing-md);
}

.page-home__sidenote-icon {
  font-size: 1.25rem;
  line-height: 1;
}

.page-home__sidenote-text {
  flex: 1;
  min-width: 12rem;
  font-size: 0.8rem;
  color: var(--ph-text-secondary);
  line-height: 1.6;
  margin: 0;
}

.page-home__sidenote-link {
  font-size: 0.8rem;
  color: var(--ph-accent);
  text-decoration: none;
  white-space: nowrap;
  border-bottom: 1px solid transparent;
  transition: border-color var(--ph-transition-fast);
}

.page-home__sidenote-link:hover {
  border-bottom-color: var(--ph-accent);
}

/* ===== 响应式：平板 ≥ 768px ===== */
@media (min-width: 768px) {
  .page-home__hero {
    grid-template-columns: 1fr 1.2fr;
    gap: var(--ph-spacing-xl);
    padding-top: calc(var(--ph-spacing-2xl) + 80px);
  }

  .page-home__hero-right {
    grid-column: 1 / -1;
    display: flex;
    gap: var(--ph-spacing-md);
    margin-top: 0;
  }

  .page-home__hero-feature {
    flex: 1;
    min-width: 0;
  }

  .page-home__hero-title {
    font-size: 3.6rem;
  }

  .page-home__panel-grid {
    grid-template-columns: repeat(2,1fr);
  }

  .page-home__report-grid {
    grid-template-columns: repeat(2,1fr);
  }

  .page-home__highlights-grid {
    grid-template-columns: repeat(2,1fr);
  }

  .page-home__compare-layout {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

/* ===== 响应式：桌面 ≥ 1024px ===== */
@media (min-width: 1024px) {
  .page-home__hero {
    grid-template-columns: 1fr 1.4fr 0.8fr;
    gap: var(--ph-spacing-2xl);
  }

  .page-home__hero-right {
    grid-column: auto;
    flex-direction: column;
  }

  .page-home__hero-title {
    font-size: 4.2rem;
  }

  .page-home__panel-grid {
    grid-template-columns: repeat(3,1fr);
  }

  .page-home__report-grid {
    grid-template-columns: repeat(2,1fr);
  }

  .page-home__highlights-grid {
    grid-template-columns: repeat(3,1fr);
  }

  .page-home__compare-layout {
    grid-template-columns: 1.2fr 1fr;
  }

  .page-home__sidenote-inner {
    flex-wrap: nowrap;
  }
}

/* ===== 桌面大屏 ≥ 1280px ===== */
@media (min-width: 1280px) {
  .page-home__hero-title {
    font-size: 4.8rem;
  }

  .page-home__report-grid {
    grid-template-columns: repeat(2,1fr);
  }
}

/* ===== 容器对齐 ===== */
.container {
  max-width: var(--ph-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--ph-spacing-lg);
  padding-right: var(--ph-spacing-lg);
}

/* ===== 标签与按钮覆盖 ===== */
.tag {
  display: inline-block;
  font-size: 0.7rem;
  font-family: var(--ph-font-body);
  padding: 0.2rem 0.6rem;
  border-radius: var(--ph-radius-pill);
  background: rgba(255,255,255,0.07);
  color: var(--ph-text-secondary);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.tag-accent {
  background: rgba(255,193,7,0.15);
  color: var(--ph-accent);
}

.tag-primary {
  background: rgba(229,57,53,0.15);
  color: var(--ph-primary);
}

.btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  font-family: var(--ph-font-body);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--ph-radius-pill);
  text-decoration: none;
  transition: background var(--ph-transition-fast), transform var(--ph-transition-fast), border-color var(--ph-transition-fast);
  cursor: pointer;
  line-height: 1.4;
}

.btn-primary {
  background: var(--ph-primary);
  color: var(--ph-text);
  border: 1px solid transparent;
}

.btn-primary:hover {
  background: #c62828;
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--ph-accent);
  color: #121212;
  border: 1px solid transparent;
}

.btn-accent:hover {
  background: #e6a800;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--ph-text);
  border: 1px solid rgba(255,255,255,0.2);
}

.btn-outline:hover {
  border-color: var(--ph-accent);
  color: var(--ph-accent);
  transform: translateY(-1px);
}

.section-title {
  font-family: var(--ph-font-heading);
  font-size: 1.8rem;
  font-weight: 400;
  margin: 0;
  line-height: 1.15;
  color: var(--ph-text);
}

.section-subtitle {
  font-size: 0.9rem;
  color: var(--ph-text-secondary);
  margin: 0;
  line-height: 1.5;
}

.data-card {
  background: rgba(255,255,255,0.05);
  border-radius: var(--ph-radius);
  padding: 0.75rem;
  text-align: center;
}

.data-label {
  display: block;
  font-size: 0.7rem;
  color: var(--ph-text-secondary);
  margin-bottom: 0.25rem;
}

.data-value {
  display: block;
  font-family: var(--ph-font-data);
  font-size: 1.25rem;
  color: var(--ph-text-data);
}

/* ===== 卡片基础 ===== */
.card {
  background: var(--ph-surface);
  border-radius: var(--ph-radius-lg);
  border: 1px solid rgba(255,255,255,0.06);
  transition: transform var(--ph-transition-fast), box-shadow var(--ph-transition-fast);
}

/* ===== 无障碍 ===== */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ===== 渐进增强展开交互（占位，无JS也可读） ===== */
[data-expandable] {
  cursor: default;
}

.page-home {
  --ph-spacing-md: 1rem;
}