.page-home {
  /* 布局与设计令牌继承 */
  --page-spacing: 2rem;
  --page-max-width: var(--max-width, 1280px);
  --page-gap: 1.5rem;

  display: flex;
  flex-direction: column;
  gap: 3rem;
  padding-bottom: 3rem;
  color: var(--clr-text-light, #FFFFFF);
  background-color: var(--clr-bg-dark, #0B1A2A);
}

/* 面包屑 */
.page-home .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.875rem;
  color: var(--clr-text-muted, #B0BEC5);
  background: var(--clr-bg-medium, #112B3F);
  border-bottom: 1px solid var(--clr-primary, #00A88E);
}

.page-home .breadcrumb__item--current {
  color: var(--clr-text-light, #FFFFFF);
  font-weight: 600;
}

/* 首屏英雄区 */
.page-home .hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 70vh;
  padding: 2rem 1rem;
  overflow: hidden;
}

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

.page-home .hero__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.25;
  filter: contrast(1.2);
}

.page-home .hero__content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.5rem;
  text-align: center;
  max-width: var(--page-max-width);
  width: 100%;
}

.page-home .hero__text {
  max-width: 600px;
}

.page-home .hero__title {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: clamp(2rem, 8vw, 3.5rem);
  line-height: 1.1;
  color: var(--clr-text-light, #FFFFFF);
  text-shadow: 0 0 20px var(--clr-primary, #00A88E), 0 0 40px rgba(0,168,142,0.4);
  letter-spacing: 0.02em;
  margin: 0 0 0.5rem;
}

.page-home .hero__subtitle {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1.125rem;
  color: var(--clr-accent, #FF6B35);
  margin: 0 0 0.75rem;
  font-weight: 600;
}

.page-home .hero__desc {
  font-size: 1rem;
  color: var(--clr-text-muted, #B0BEC5);
  margin: 0;
  line-height: 1.5;
}

.page-home .hero__scoreboard {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: rgba(11,26,42,0.85);
  border: 2px solid var(--clr-primary, #00A88E);
  border-radius: var(--radius, 6px);
  backdrop-filter: blur(6px);
  box-shadow: 0 0 24px rgba(0,168,142,0.25);
}

.page-home .hero__scoreboard-svg {
  max-width: 100%;
  height: auto;
}

.page-home .hero__scoreboard-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  justify-content: center;
}

/* 功能亮点 */
.page-home .features {
  padding: 0 1rem;
}

.page-home .features__heading {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 2rem;
  color: var(--clr-text-light, #FFFFFF);
  margin: 0 0 2rem;
  text-align: center;
  text-shadow: var(--glow, 0 0 12px rgba(0,168,142,0.3));
}

.page-home .features__grid {
  display: flex;
  flex-direction: column;
  gap: var(--page-gap);
}

.page-home .card--feature {
  display: flex;
  flex-direction: column;
  background: rgba(17,43,63,0.6);
  border: 1px solid var(--clr-metal, #C0C0C0);
  border-radius: var(--radius, 6px);
  overflow: hidden;
  transition: transform var(--transition, 0.25s), border-color var(--transition, 0.25s), box-shadow var(--transition, 0.25s);
  cursor: pointer;
}

.page-home .card--feature:focus-visible {
  outline: 2px solid var(--clr-primary, #00A88E);
  outline-offset: 2px;
}

.page-home .card--feature:hover,
.page-home .card--feature:focus-visible {
  transform: translateY(-4px);
  border-color: var(--clr-primary, #00A88E);
  box-shadow: 0 8px 24px rgba(0,168,142,0.3);
}

.page-home .card__img {
  flex-shrink: 0;
}

.page-home .card__img-content {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  background-color: var(--clr-bg-medium, #112B3F);
}

.page-home .card__body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.page-home .card__title {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 1.25rem;
  color: var(--clr-text-light, #FFFFFF);
  margin: 0;
  line-height: 1.3;
}

.page-home .card__text {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  color: var(--clr-text-muted, #B0BEC5);
  margin: 0;
  line-height: 1.5;
}

.page-home .tag-label,
.page-home .stat-badge {
  align-self: flex-start;
  margin-top: 0.5rem;
}

/* 最新动态时间线 */
.page-home .updates {
  background: linear-gradient(135deg, var(--clr-bg-medium, #112B3F) 0%, var(--clr-bg-dark, #0B1A2A) 100%);
  padding: 2.5rem 0;
  border-top: 2px solid var(--clr-primary, #00A88E);
  border-bottom: 2px solid var(--clr-primary, #00A88E);
}

.page-home .updates__heading {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 2rem;
  color: var(--clr-accent, #FF6B35);
  margin: 0 0 2rem;
  text-align: center;
  text-shadow: 0 0 12px rgba(255,107,53,0.3);
}

.page-home .updates__timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 0 1rem;
}

.page-home .updates__item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  background: rgba(11,26,42,0.8);
  border-left: 4px solid var(--clr-primary, #00A88E);
  border-radius: 0 var(--radius, 6px) var(--radius, 6px) 0;
  transition: background var(--transition, 0.25s);
}

.page-home .updates__item:hover {
  background: rgba(17,43,63,0.9);
}

.page-home .updates__badge {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.page-home .updates__title {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 1.125rem;
  color: var(--clr-text-light, #FFFFFF);
  margin: 0;
  line-height: 1.3;
}

.page-home .updates__text {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 0.9375rem;
  color: var(--clr-text-muted, #B0BEC5);
  margin: 0;
  line-height: 1.5;
}

.page-home .updates__link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  padding: 0.4rem 1rem;
  text-decoration: none;
  border-radius: var(--radius, 6px);
  color: var(--clr-text-light, #FFFFFF);
  background: var(--clr-primary-dark, #007A64);
  transition: background var(--transition, 0.25s);
}

.page-home .updates__link:hover,
.page-home .updates__link:focus-visible {
  background: var(--clr-primary, #00A88E);
}

/* 下载区域 */
.page-home .cta-download {
  padding: 0 1rem;
}

.page-home .cta-download__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 3rem 2rem;
  background: linear-gradient(145deg, var(--clr-bg-medium, #112B3F) 0%, var(--clr-bg-dark, #0B1A2A) 100%);
  border: 2px solid var(--clr-accent, #FF6B35);
  border-radius: var(--radius, 6px);
  text-align: center;
  box-shadow: 0 0 30px rgba(255,107,53,0.15);
}

.page-home .cta-download__heading {
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 2rem;
  color: var(--clr-text-light, #FFFFFF);
  margin: 0;
  text-shadow: var(--glow, 0 0 12px rgba(0,168,142,0.3));
}

.page-home .cta-download__desc {
  font-family: var(--font-body, 'Noto Sans SC', sans-serif);
  font-size: 1rem;
  color: var(--clr-text-muted, #B0BEC5);
  max-width: 400px;
  margin: 0;
  line-height: 1.5;
}

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

.page-home .btn-cta {
  background: var(--clr-primary, #00A88E);
  color: var(--clr-text-light, #FFFFFF);
  border: none;
  padding: 0.75rem 2rem;
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 1rem;
  border-radius: var(--radius, 6px);
  text-decoration: none;
  transition: background var(--transition, 0.25s), transform var(--transition, 0.25s);
}

.page-home .btn-cta:hover,
.page-home .btn-cta:focus-visible {
  background: var(--clr-primary-dark, #007A64);
  transform: scale(1.03);
}

.page-home .btn-accent {
  background: var(--clr-accent, #FF6B35);
  color: var(--clr-text-light, #FFFFFF);
  border: none;
  padding: 0.75rem 2rem;
  font-family: var(--font-heading, 'Montserrat Black', sans-serif);
  font-size: 1rem;
  border-radius: var(--radius, 6px);
  text-decoration: none;
  transition: background var(--transition, 0.25s), transform var(--transition, 0.25s);
}

.page-home .btn-accent:hover,
.page-home .btn-accent:focus-visible {
  background: var(--clr-accent-light, #FF8C5A);
  transform: scale(1.03);
}

/* 响应式桌面 */
@media (min-width: 768px) {
  .page-home {
    gap: 4rem;
    padding-bottom: 4rem;
  }

  .page-home .hero__content {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    gap: 3rem;
  }

  .page-home .hero__text {
    flex: 1;
  }

  .page-home .hero__title {
    font-size: 3.5rem;
  }

  .page-home .hero__scoreboard {
    flex-shrink: 0;
  }

  .page-home .features__grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
  }

  .page-home .card--feature-left {
    grid-column: 1 / 2;
    transform: rotate(-1deg);
  }

  .page-home .card--feature-center {
    grid-column: 2 / 3;
    transform: translateY(1rem) rotate(0.5deg);
  }

  .page-home .card--feature-right {
    grid-column: 3 / 4;
    transform: rotate(1deg);
  }

  .page-home .updates__timeline {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
  }

  .page-home .cta-download__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    padding: 3rem 4rem;
  }

  .page-home .cta-download__text-group {
    max-width: 500px;
  }

  .page-home .cta-download__actions {
    flex-shrink: 0;
  }
}

/* 窄屏安全 */
@media (max-width: 767px) {
  .page-home .hero__title {
    font-size: 2rem;
  }

  .page-home .features__heading {
    font-size: 1.75rem;
  }

  .page-home .updates__heading {
    font-size: 1.75rem;
  }

  .page-home .cta-download__heading {
    font-size: 1.75rem;
  }

  .page-home .hero__scoreboard-svg {
    width: 240px;
    height: auto;
  }
}