.page-home {
  --home-masthead-min-height: 640px;
  --home-masthead-padding: 2rem 1rem;
  --home-card-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  --home-card-hover-shadow: 0 8px 32px rgba(0, 51, 102, 0.15);
  --home-transition: 300ms ease-in-out;
  --home-stat-font: 800 3rem/1 var(--font-heading);
  --home-stat-font-mobile: 800 2.2rem/1 var(--font-heading);
  --home-grid-gap: 1.5rem;
}

/* ===== 首屏杂志封面 ===== */
.page-home .home-masthead {
  position: relative;
  min-height: var(--home-masthead-min-height);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--home-masthead-padding);
  background: linear-gradient(135deg, #002244 0%, #003366 40%, #001a33 100%);
  overflow: hidden;
}

.page-home .home-masthead-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .home-masthead-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 70% 50%;
  opacity: 0.15;
}

.page-home .home-masthead-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(0, 34, 68, 0.85) 0%, rgba(0, 51, 102, 0.4) 60%, transparent 100%);
}

.page-home .home-masthead-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  width: 100%;
}

.page-home .home-masthead-label {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-highlight);
  border: 1px solid var(--color-highlight);
  padding: 0.375rem 1.25rem;
  margin-bottom: 1.25rem;
  opacity: 0.9;
}

.page-home .home-masthead-title {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(2.2rem, 7vw, 4rem);
  line-height: 1.05;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin: 0 0 0.5rem;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.page-home .home-masthead-subtitle {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: clamp(0.95rem, 2.2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 1px;
  margin: 0 0 1.5rem;
}

.page-home .home-masthead-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem 2.5rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}

.page-home .home-masthead-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-home .home-stat-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--home-stat-font-mobile);
  color: var(--color-highlight);
  line-height: 1;
}

@media (min-width: 640px) {
  .page-home .home-stat-num {
    font-size: var(--home-stat-font);
  }
}

.page-home .home-stat-label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 0.25rem;
}

.page-home .home-masthead-nav {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-home .home-masthead-nav .btn {
  min-width: 160px;
}

.page-home .home-masthead-nav .btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
}

.page-home .home-masthead-nav .btn-outline:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

.page-home .home-masthead-nav .btn-primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.page-home .home-masthead-nav .btn-primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

/* ===== 通用section样式 ===== */
.page-home .home-section {
  padding: 3.5rem 1rem;
}

@media (min-width: 768px) {
  .page-home .home-section {
    padding: 5rem 1.5rem;
  }
}

.page-home .home-section .container {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.page-home .section-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 3.5rem;
  color: var(--color-primary);
  opacity: 0.06;
  line-height: 1;
  margin-bottom: -1.5rem;
  pointer-events: none;
  user-select: none;
}

.page-home .section-number-light {
  color: #ffffff;
  opacity: 0.12;
}

.page-home .home-section-heading {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-primary);
  margin: 0 0 0.75rem;
  position: relative;
}

.page-home .home-section-heading-light {
  color: #ffffff;
}

.page-home .home-section-desc {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-secondary);
  max-width: 640px;
  margin: 0 0 2rem;
  line-height: 1.6;
}

.page-home .home-section-desc:has(+ .home-section-desc) {
  margin-bottom: 0.5rem;
}

/* ===== 轮次区域 ===== */
.page-home .home-rounds {
  background: var(--color-bg);
}

.page-home .home-rounds-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-home .home-rounds-nav {
  display: flex;
  gap: 0.25rem;
  border-bottom: 2px solid var(--color-border);
  padding-bottom: 0.5rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.page-home .home-rounds-tab {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0.5rem 1.25rem;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: color var(--home-transition), border-color var(--home-transition);
  border-bottom: 3px solid transparent;
  margin-bottom: -0.5rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.page-home .home-rounds-tab:hover {
  color: var(--color-primary);
}

.page-home .home-rounds-tab[aria-selected="true"] {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.page-home .home-rounds-panels {
  min-height: 320px;
}

.page-home .home-rounds-panel[hidden] {
  display: none;
}

.page-home .home-rounds-card-group {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-grid-gap);
}

@media (min-width: 600px) {
  .page-home .home-rounds-card-group {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1000px) {
  .page-home .home-rounds-card-group {
    grid-template-columns: repeat(4, 1fr);
  }
}

.page-home .home-round-card {
  border-radius: 0;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  transition: box-shadow var(--home-transition), transform var(--home-transition);
  cursor: default;
}

.page-home .home-round-card:hover {
  box-shadow: var(--home-card-hover-shadow);
  transform: translateY(-3px);
}

.page-home .home-round-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.page-home .home-round-card-date {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--color-text-secondary);
}

.page-home .home-round-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  margin: 0 0 0.75rem;
}

.page-home .home-round-card .data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--color-bg-alt);
}

.page-home .home-round-card .data-row:last-of-type {
  border-bottom: none;
}

.page-home .home-round-card .data-row .label {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.page-home .home-round-card .data-row .value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--color-text);
}

.page-home .home-round-card .data-row .value-accent {
  color: var(--color-accent);
}

.page-home .home-round-card .progress-bar {
  margin-top: 0.75rem;
}

.page-home .home-rounds-footer {
  margin-top: 1.5rem;
  text-align: center;
}

/* ===== 核心功能快速入口 ===== */
.page-home .home-features {
  background: var(--color-bg-alt);
  position: relative;
}

.page-home .home-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--home-grid-gap);
}

@media (min-width: 500px) {
  .page-home .home-features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-home .home-features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.page-home .home-feature-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  border-radius: 0;
  background: var(--color-bg);
  text-decoration: none;
  color: inherit;
  transition: box-shadow var(--home-transition), transform var(--home-transition);
}

.page-home .home-feature-card:hover {
  box-shadow: var(--home-card-hover-shadow);
  transform: translateY(-3px);
}

.page-home .home-feature-icon {
  margin-bottom: 1rem;
  width: 40px;
  height: 40px;
}

.page-home .home-feature-card-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-primary);
  margin: 0 0 0.35rem;
}

.page-home .home-feature-card-desc {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
  line-height: 1.4;
  flex: 1;
}

.page-home .home-feature-card .tag-outline {
  align-self: flex-start;
}

.page-home .home-features-mobile {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.page-home .home-features-mobile-img {
  max-width: 200px;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

@media (min-width: 768px) {
  .page-home .home-features-mobile-img {
    max-width: 240px;
  }
}

/* ===== 数据亮点 ===== */
.page-home .home-highlights {
  background: var(--color-bg);
}

.page-home .home-highlights-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--home-grid-gap);
}

@media (min-width: 640px) {
  .page-home .home-highlights-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.page-home .home-highlight-stat {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: box-shadow var(--home-transition);
}

.page-home .home-highlight-stat:hover {
  box-shadow: var(--home-card-hover-shadow);
}

.page-home .home-highlight-stat .stat-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  color: var(--color-primary);
  display: block;
  line-height: 1.1;
}

.page-home .home-highlight-stat .stat-label {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  margin-top: 0.35rem;
  display: block;
}

.page-home .home-highlight-stat-bar {
  height: 4px;
  background: var(--color-bg-alt);
  margin-top: 1rem;
  border-radius: 0;
  overflow: hidden;
}

.page-home .home-highlight-stat-fill {
  height: 100%;
  background: var(--color-primary);
  transition: width 0.8s ease-in-out;
}

.page-home .home-highlight-stat-fill-accent {
  background: var(--color-accent);
}

.page-home .home-highlights-chart {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.page-home .home-highlights-chart-img {
  max-width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  box-shadow: var(--home-card-shadow);
}

@media (min-width: 640px) {
  .page-home .home-highlights-chart-img {
    max-width: 600px;
  }
}

/* ===== 品牌介绍 ===== */
.page-home .home-about {
  position: relative;
  padding: 4rem 1rem;
  background: var(--color-primary-dark);
  overflow: hidden;
}

@media (min-width: 768px) {
  .page-home .home-about {
    padding: 5rem 1.5rem;
  }
}

.page-home .home-about-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-home .home-about-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 50% 50%;
  opacity: 0.12;
}

.page-home .home-about-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(0, 34, 68, 0.9) 0%, rgba(0, 51, 102, 0.7) 100%);
}

.page-home .home-about .container {
  position: relative;
  z-index: 2;
}

.page-home .home-about-content {
  max-width: 720px;
}

.page-home .home-about-content p {
  font-family: var(--font-body);
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.7;
  margin: 0 0 1.5rem;
}

.page-home .home-about-links {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-home .home-about-links .btn-accent {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #ffffff;
}

.page-home .home-about-links .btn-accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
}

.page-home .home-about-links .btn-outline {
  border-color: rgba(255, 255, 255, 0.4);
  color: #ffffff;
}

.page-home .home-about-links .btn-outline:hover {
  border-color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
}

/* ===== 响应式微调 ===== */
@media (max-width: 480px) {
  .page-home .home-masthead {
    --home-masthead-min-height: 520px;
    padding: 1.5rem 0.75rem;
  }

  .page-home .home-masthead-stats {
    gap: 1rem 1.5rem;
  }

  .page-home .home-section {
    padding: 2.5rem 0.75rem;
  }

  .page-home .home-highlights-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
  }

  .page-home .home-rounds-nav {
    gap: 0;
  }

  .page-home .home-rounds-tab {
    padding: 0.5rem 0.9rem;
    font-size: 0.78rem;
  }

  .page-home .home-feature-card {
    padding: 1.25rem;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .page-home .home-rounds-card-group {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* ===== tab交互渐进增强：无JS时全部可见 ===== */
.page-home .home-rounds-panel[hidden] {
  display: none;
}

.page-home .home-rounds-panel:not([hidden]) {
  display: block;
}

/* ===== 图片响应式 ===== */
.page-home img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===== 动效过渡 ===== */
.page-home .home-round-card,
.page-home .home-feature-card,
.page-home .home-highlight-stat {
  will-change: transform, box-shadow;
}

/* ===== 数据卡片滚动动效触发器 ===== */
.page-home .home-stat-num[data-scroll-value],
.page-home .stat-value[data-scroll-value] {
  transition: all 0.6s ease-out;
}
</<PAGE_CSS>>