.page-home {
  --home-gold-light: #EFD978;
  --home-gold-dark: #B89406;
  --home-card-shadow: 0 8px 24px rgba(10, 31, 68, 0.10);
  --home-card-shadow-hover: 0 12px 32px rgba(10, 31, 68, 0.16);
  background: var(--color-white);
  overflow-x: hidden;
}

.page-home .site-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
  box-sizing: border-box;
}

.page-home .breadcrumb {
  margin-bottom: 20px;
}

.page-home .breadcrumb a {
  color: var(--color-pale-gold);
  text-underline-offset: 4px;
  transition: color var(--transition-fast);
}

.page-home .breadcrumb a:hover {
  color: var(--color-white);
}

.page-home .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 22px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: transform var(--transition-fast), box-shadow var(--transition-base), background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
  cursor: pointer;
}

.page-home .btn--gold {
  background: linear-gradient(135deg, var(--home-gold-light) 0%, var(--color-gold) 100%);
  color: var(--color-navy);
  border: 1px solid var(--color-gold);
}

.page-home .btn--gold:hover {
  box-shadow: 0 6px 20px rgba(212, 177, 6, 0.35);
  transform: translateY(-2px);
}

.page-home .btn--outline {
  background: transparent;
  color: var(--color-navy);
  border: 1px solid var(--color-navy);
}

.page-home .btn--outline:hover {
  background: var(--color-navy);
  color: var(--color-white);
}

.page-home .btn--ghost {
  background: transparent;
  color: var(--color-pale-gold);
  border: 1px solid var(--color-pale-gold);
}

.page-home .btn--ghost:hover {
  background: var(--color-pale-gold);
  color: var(--color-navy);
}

.page-home .section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin: 0 0 24px 0;
}

.page-home .section-title__line {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-navy);
  opacity: 0.25;
}

.page-home .section-title__text {
  font-family: var(--font-heading);
  font-size: 28px;
  line-height: 1.2;
  color: var(--color-navy);
  margin: 0;
  text-align: center;
}

.page-home .section-title--light .section-title__line {
  background: var(--color-pale-gold);
  opacity: 0.45;
}

.page-home .section-title--light .section-title__text {
  color: var(--color-pale-gold);
}

.page-home .panel {
  border-radius: var(--radius-md);
  box-sizing: border-box;
}

.page-home .panel--white {
  background: var(--color-white);
  box-shadow: var(--home-card-shadow);
  border: 1px solid rgba(10, 31, 68, 0.06);
}

.page-home .panel--navy {
  background: var(--color-navy);
  color: var(--color-white);
  position: relative;
}

.page-home .panel--pale {
  background: linear-gradient(145deg, #FFFDF5 0%, #FBF6E4 100%);
  border: 1px solid rgba(212, 177, 6, 0.3);
  box-shadow: var(--home-card-shadow);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.page-home .panel--pale:hover {
  box-shadow: var(--home-card-shadow-hover);
  transform: translateY(-4px);
}

.page-home .tag {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  box-sizing: border-box;
}

.page-home .tag--navy {
  background: var(--color-navy);
  color: var(--color-white);
}

.page-home .tag--gold {
  background: var(--color-gold);
  color: var(--color-navy);
}

.page-home .tag--ghost {
  background: transparent;
  color: var(--color-pale-gold);
  border: 1px solid rgba(241, 230, 163, 0.4);
}

.page-home .text-small {
  font-size: 13px;
  line-height: 1.5;
}

.page-home .text-muted {
  color: var(--color-slate);
}

/* ===== Hero ===== */
.page-home .home-hero {
  background: var(--color-navy);
  color: var(--color-white);
  padding: 44px 0 52px;
  position: relative;
  overflow: hidden;
}

.page-home .home-hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  position: relative;
  z-index: 2;
}

.page-home .home-hero__copy {
  max-width: 100%;
}

.page-home .home-hero__title {
  font-family: var(--font-heading);
  font-size: 38px;
  line-height: 1.15;
  margin: 0 0 16px 0;
  color: var(--color-white);
  letter-spacing: 0.01em;
}

.page-home .home-hero__lead {
  font-size: 16px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.78);
  margin: 0 0 28px 0;
  max-width: 560px;
}

.page-home .home-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

.page-home .home-hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .home-hero__visual {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.page-home .home-hero__visual-grid {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  background-image:
    linear-gradient(rgba(212, 177, 6, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 177, 6, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
}

.page-home .home-hero__visual-line {
  position: absolute;
  top: 18%;
  right: -80px;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(212, 177, 6, 0.5);
  border-radius: 50%;
  opacity: 0.5;
}

.page-home .home-hero__visual-glow {
  position: absolute;
  bottom: -120px;
  right: 10%;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(212, 177, 6, 0.18) 0%, transparent 70%);
}

.page-home .home-hero__scroll-meta {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.page-home .home-hero__meta-item {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  letter-spacing: 0.04em;
}

/* ===== 快速下载区 ===== */
.page-home .download-band {
  padding: 56px 0 64px;
  background: var(--color-white);
}

.page-home .home-download {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 8px;
}

.page-home .home-download__platforms {
  padding: 24px 20px;
}

.page-home .home-download__intro {
  font-size: 15px;
  line-height: 1.65;
  color: var(--color-slate);
  margin: 0 0 20px 0;
}

.page-home .home-download__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .home-download__item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 8px;
  padding: 18px;
  border: 1px solid rgba(10, 31, 68, 0.08);
  border-radius: var(--radius-sm);
  background: #FAFBFC;
  box-sizing: border-box;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.page-home .home-download__item:hover {
  border-color: rgba(212, 177, 6, 0.6);
  background: rgba(241, 230, 163, 0.1);
}

.page-home .home-download__item .btn {
  margin-top: auto;
}

.page-home .home-download__item .text-small {
  margin-bottom: 4px;
}

.page-home .home-download__side {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: flex-start;
  background-image: radial-gradient(circle at 80% 10%, rgba(212, 177, 6, 0.12) 0%, transparent 55%);
}

.page-home .home-download__side-title {
  font-family: var(--font-heading);
  font-size: 22px;
  margin: 0;
  color: var(--color-pale-gold);
}

.page-home .home-download__side-text {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin: 0;
}

.page-home .home-download__side-meta {
  color: rgba(255, 255, 255, 0.5);
}

.page-home .home-download__icon-row {
  margin-top: 20px;
  text-align: center;
}

.page-home .home-download__platform-icons {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-sm);
}

/* ===== 升级三步走 ===== */
.page-home .upgrade-section {
  padding: 56px 0 64px;
  background: var(--color-pale-gold);
}

.page-home .upgrade-section__lead {
  text-align: center;
  font-size: 15px;
  color: var(--color-slate);
  margin: -12px auto 28px;
  max-width: 520px;
  line-height: 1.6;
}

.page-home .upgrade-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-home .upgrade-steps__visual {
  text-align: center;
}

.page-home .upgrade-steps__img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--home-card-shadow);
}

.page-home .upgrade-steps__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.page-home .upgrade-step {
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid rgba(212, 177, 6, 0.35);
  padding: 20px 18px;
  display: flex;
  gap: 16px;
  border-radius: var(--radius-md);
  box-sizing: border-box;
}

.page-home .upgrade-step__num {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-navy);
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 700;
}

.page-home .upgrade-step__body {
  flex: 1;
}

.page-home .upgrade-step__title {
  font-size: 16px;
  margin: 0 0 4px 0;
  color: var(--color-navy);
}

.page-home .upgrade-step__text {
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-slate);
  margin: 0;
}

.page-home .upgrade-steps__faq-link {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  padding: 12px 0;
}

/* ===== 产品线入口 ===== */
.page-home .products-section {
  padding: 56px 0 64px;
  background: var(--color-white);
}

.page-home .home-products__intro {
  text-align: center;
  max-width: 620px;
  margin: -8px auto 28px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--color-slate);
}

.page-home .home-product-card {
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  height: 100%;
  box-sizing: border-box;
  border-radius: var(--radius-md);
  position: relative;
  overflow: hidden;
}

.page-home .home-product-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 70px;
  height: 70px;
  background: radial-gradient(circle at top right, rgba(212, 177, 6, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.page-home .home-product-card__shape {
  width: 60px;
  height: 60px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(10, 31, 68, 0.04);
  border-radius: var(--radius-sm);
}

.page-home .home-product-card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  margin: 0 0 10px 0;
  color: var(--color-navy);
}

.page-home .home-product-card__text {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-slate);
  margin: 0 0 18px 0;
  flex: 1;
}

.page-home .home-product-card__link {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-navy);
  text-decoration: none;
  border-bottom: 2px solid var(--color-gold);
  padding-bottom: 2px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.page-home .home-product-card__link:hover {
  color: var(--color-gold-dark);
  border-color: var(--color-navy);
}

/* ===== 历史版本存档 ===== */
.page-home .archive-section {
  padding: 56px 0 64px;
  background: var(--color-navy);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.page-home .archive-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gold) 0%, transparent 40%);
}

.page-home .home-archive {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  align-items: center;
}

.page-home .home-archive__lead {
  font-size: 15px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.72);
  margin: 0 0 24px 0;
}

.page-home .home-archive__features {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.page-home .home-archive__feature {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-home .home-archive__feature-num {
  font-family: var(--font-heading);
  font-size: 30px;
  color: var(--color-gold);
  line-height: 1.1;
}

.page-home .home-archive__feature-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}

.page-home .home-archive__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-home .home-archive__visual {
  text-align: center;
}

.page-home .home-archive__img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  border: 1px solid rgba(212, 177, 6, 0.35);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* ===== 底部导航摘要 ===== */
.page-home .index-brief {
  padding: 56px 0 64px;
  background: var(--color-white);
}

.page-home .home-brief__heading {
  text-align: center;
  margin-bottom: 28px;
}

.page-home .home-brief__title {
  font-family: var(--font-heading);
  font-size: 28px;
  margin: 0 0 8px 0;
  color: var(--color-navy);
}

.page-home .home-brief__subtitle {
  font-size: 15px;
  color: var(--color-slate);
  margin: 0 auto;
  max-width: 520px;
  line-height: 1.6;
}

.page-home .home-brief__columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.page-home .home-brief__col {
  padding: 20px;
  border: 1px solid rgba(10, 31, 68, 0.08);
  border-radius: var(--radius-sm);
  background: #FAFBFC;
}

.page-home .home-brief__col .tag {
  margin-bottom: 10px;
}

.page-home .home-brief__col p {
  font-size: 14px;
  line-height: 1.65;
  color: var(--color-ink);
  margin: 0;
}

.page-home .home-brief__links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  justify-content: center;
}

.page-home .home-brief__link {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-navy);
  text-underline-offset: 4px;
  transition: color var(--transition-fast);
}

.page-home .home-brief__link:hover {
  color: var(--color-gold-dark);
}

.page-home .home-brief__sep {
  color: var(--color-pale-gold);
}

/* ===== 响应式 ===== */
@media (min-width: 640px) {
  .page-home .home-hero {
    padding: 56px 0 64px;
  }

  .page-home .home-hero__title {
    font-size: 50px;
  }

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

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

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

@media (min-width: 900px) {
  .page-home .site-container {
    padding-left: 32px;
    padding-right: 32px;
  }

  .page-home .home-hero__inner {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 0;
  }

  .page-home .home-hero__visual {
    position: absolute;
  }

  .page-home .home-hero__visual-grid {
    width: 55%;
    right: 0;
  }

  .page-home .home-hero__visual-line {
    right: 12%;
    width: 360px;
    height: 360px;
  }

  .page-home .home-hero__visual-glow {
    right: 20%;
    width: 400px;
    height: 400px;
  }

  .page-home .home-download {
    grid-template-columns: 1.5fr 1fr;
    gap: 28px;
  }

  .page-home .home-download__side {
    padding: 36px 30px;
    justify-content: center;
  }

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

  .page-home .upgrade-steps__visual {
    order: -1;
  }

  .page-home .home-archive {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
  }

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

@media (min-width: 1200px) {
  .page-home .home-hero {
    padding: 72px 0 80px;
  }

  .page-home .section-title__text {
    font-size: 32px;
  }

  .page-home .home-download__platforms {
    padding: 36px 32px;
  }

  .page-home .home-product-card {
    padding: 30px 26px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .btn,
  .page-home .panel--pale,
  .page-home .home-download__item,
  .page-home .home-product-card__link,
  .page-home .home-brief__link {
    transition: none;
    transform: none;
  }

  .page-home .btn--gold:hover,
  .page-home .btn--outline:hover,
  .page-home .btn--ghost:hover {
    transform: none;
  }
}

.page-home {
  --color-gold-dark: var(--color-gold);
}