/* ===== 页面专属：page-home ===== */
.page-home {
  --home-gold-glow: rgba(212, 175, 55, 0.25);
  --home-deep-shadow: rgba(139, 0, 0, 0.3);
  --home-intro-minh: clamp(80vh, 90vh, 960px);
  --home-timeline-accent: var(--color-gold, #D4AF37);
  --home-section-pad: clamp(3rem, 8vw, 6rem);
  display: block;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}

/* ---- 页面上下文 ---- */
.page-home__context {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.875rem;
  letter-spacing: 0.08em;
  color: var(--color-gold, #D4AF37);
  background: var(--color-bg-dark, #1A1A1A);
  padding: 0.75rem 1.5rem;
  margin: 0;
  text-transform: uppercase;
  border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

/* ---- 首屏 Intro ---- */
.page-home__intro {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  min-height: var(--home-intro-minh);
  padding: 2.5rem 1.5rem 4rem;
  background: linear-gradient(160deg, var(--color-bg-dark, #1A1A1A) 0%, #3a1a1a 55%, var(--color-deep-red, #8B0000) 100%);
  overflow: hidden;
  align-items: center;
  justify-content: center;
}

.page-home__intro-glow {
  position: absolute;
  top: -10%;
  right: -5%;
  width: 45vmax;
  height: 45vmax;
  border-radius: 50%;
  background: radial-gradient(circle at 40% 40%, var(--home-gold-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: pageHomeGlowPulse 6s ease-in-out infinite alternate;
  will-change: transform, opacity;
}

@keyframes pageHomeGlowPulse {
  0% { transform: scale(0.9); opacity: 0.5; }
  100% { transform: scale(1.15); opacity: 0.9; }
}

@media (prefers-reduced-motion: reduce) {
  .page-home__intro-glow {
    animation: none;
    opacity: 0.6;
  }
}

.page-home__brand {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 560px;
}

.page-home__brand-icon {
  width: 120px;
  height: auto;
  border-radius: 50%;
  box-shadow: 0 0 0 2px var(--color-gold, #D4AF37), 0 0 48px var(--home-gold-glow);
  margin-bottom: 1.25rem;
  object-fit: cover;
  background: var(--color-bg-dark, #1A1A1A);
}

.page-home__brand-name {
  font-family: var(--font-heading, Georgia, 'Times New Roman', serif);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gold, #D4AF37);
  margin: 0 0 0.4rem;
  letter-spacing: 0.04em;
}

.page-home__brand-sub {
  display: block;
  font-size: 0.6em;
  font-weight: 400;
  color: var(--color-text-light, #F5F5F5);
  letter-spacing: 0.15em;
  margin-top: 0.15rem;
}

.page-home__brand-tagline {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
  font-weight: 600;
  color: var(--color-bright-yellow, #FFD700);
  margin: 0.5rem 0 0.75rem;
  letter-spacing: 0.06em;
}

.page-home__brand-desc {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  line-height: 1.7;
  color: var(--color-text-light, #F5F5F5);
  max-width: 480px;
  margin: 0 auto 1rem;
  opacity: 0.88;
}

.page-home__brand-badge {
  display: inline-block;
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.75rem;
  color: var(--color-gold, #D4AF37);
  border: 1px solid rgba(212, 175, 55, 0.35);
  padding: 0.3rem 1rem;
  border-radius: 20px;
  letter-spacing: 0.05em;
}

/* ---- 内容目录 ---- */
.page-home__toc {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 540px;
}

.page-home__toc-heading {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-gold, #D4AF37);
  margin: 0 0 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.25);
}

.page-home__toc-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-home__toc-item {
  margin: 0;
  padding: 0;
}

.page-home__toc-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(212, 175, 55, 0.2);
  border-radius: 8px;
  text-decoration: none;
  color: var(--color-text-light, #F5F5F5);
  transition: background var(--transition, 0.3s ease), border-color var(--transition, 0.3s ease), transform var(--transition, 0.3s ease);
}

.page-home__toc-link:hover,
.page-home__toc-link:focus-visible {
  background: rgba(212, 175, 55, 0.12);
  border-color: var(--color-gold, #D4AF37);
  transform: translateX(4px);
  outline: none;
}

.page-home__toc-num {
  flex-shrink: 0;
  font-family: var(--font-heading, Georgia, 'Times New Roman', serif);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-gold, #D4AF37);
  width: 2.4rem;
  text-align: center;
  opacity: 0.8;
}

.page-home__toc-text {
  display: flex;
  flex-direction: column;
}

.page-home__toc-text strong {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-text-light, #F5F5F5);
}

.page-home__toc-text small {
  font-size: 0.85rem;
  color: rgba(245, 245, 245, 0.6);
  margin-top: 0.15rem;
}

/* ---- 通用章节 ---- */
.page-home__section {
  padding: var(--home-section-pad) 1.5rem;
}

.page-home__section-inner {
  max-width: var(--content-max, 980px);
  margin: 0 auto;
  position: relative;
}

.page-home__section-title {
  font-family: var(--font-heading, Georgia, 'Times New Roman', serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--color-text-dark, #1A1A1A);
  margin: 0 0 0.75rem;
  position: relative;
  padding-bottom: 0.6rem;
}

.page-home__section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 4rem;
  height: 3px;
  background: var(--color-gold, #D4AF37);
  border-radius: 2px;
}

.page-home__section-title--light {
  color: var(--color-text-light, #F5F5F5);
}

.page-home__section-title--light::after {
  background: var(--color-bright-yellow, #FFD700);
}

.page-home__section-desc {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.7;
  color: var(--color-text-dark, #1A1A1A);
  max-width: 640px;
  margin: 0 0 2.5rem;
  opacity: 0.82;
}

.page-home__section-desc--light {
  color: var(--color-text-light, #F5F5F5);
  opacity: 0.9;
}

/* ---- 版本区 ---- */
.page-home__section--version {
  background: var(--color-bg-light, #FFF8DC);
  position: relative;
}

.page-home__version-bg {
  position: absolute;
  top: 0;
  right: 0;
  width: min(60%, 600px);
  height: auto;
  opacity: 0.08;
  pointer-events: none;
  object-fit: cover;
  z-index: 0;
}

.page-home__timeline {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  padding-left: 2rem;
}

.page-home__timeline::before {
  content: '';
  position: absolute;
  top: 0.6rem;
  left: 0.6rem;
  width: 2px;
  height: calc(100% - 1.2rem);
  background: linear-gradient(to bottom, var(--color-gold, #D4AF37), var(--color-deep-red, #8B0000));
  border-radius: 1px;
}

.page-home__timeline-node {
  position: relative;
  padding-left: 1.5rem;
}

.page-home__timeline-marker {
  position: absolute;
  left: -1.65rem;
  top: 0.45rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-gold, #D4AF37);
  border: 3px solid var(--color-bg-light, #FFF8DC);
  box-shadow: 0 0 0 2px var(--color-gold, #D4AF37);
  z-index: 1;
}

.page-home__timeline-node--current .page-home__timeline-marker {
  width: 20px;
  height: 20px;
  left: -1.85rem;
  top: 0.35rem;
  background: var(--color-deep-red, #8B0000);
  border-color: var(--color-bg-light, #FFF8DC);
  box-shadow: 0 0 0 3px var(--color-gold, #D4AF37), 0 0 20px var(--home-gold-glow);
}

.page-home__timeline-content {
  background: #ffffff;
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  border-left: 3px solid var(--color-gold, #D4AF37);
}

.page-home__timeline-tag {
  display: inline-block;
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-light, #F5F5F5);
  background: var(--color-deep-red, #8B0000);
  padding: 0.2rem 0.8rem;
  border-radius: 12px;
  margin-bottom: 0.5rem;
}

.page-home__timeline-heading {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: clamp(1.05rem, 1.8vw, 1.3rem);
  font-weight: 700;
  color: var(--color-text-dark, #1A1A1A);
  margin: 0 0 0.5rem;
}

.page-home__timeline-desc {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.95rem;
  line-height: 1.65;
  color: var(--color-text-dark, #1A1A1A);
  margin: 0 0 0.75rem;
  opacity: 0.82;
}

.page-home__timeline-link {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-deep-red, #8B0000);
  text-decoration: none;
  transition: color var(--transition, 0.3s ease);
}

.page-home__timeline-link:hover,
.page-home__timeline-link:focus-visible {
  color: var(--color-gold, #D4AF37);
  text-decoration: underline;
  outline: none;
}

/* ---- 下载区 ---- */
.page-home__section--download {
  background: linear-gradient(135deg, var(--color-bg-dark, #1A1A1A) 0%, #2a0f0f 60%, var(--color-deep-red, #8B0000) 100%);
}

.page-home__download-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(212, 175, 55, 0.3);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(4px);
  box-shadow: 0 8px 40px var(--home-deep-shadow);
}

.page-home__download-icon {
  width: 64px;
  height: auto;
  margin-bottom: 1rem;
  object-fit: contain;
  filter: drop-shadow(0 0 12px rgba(212, 175, 55, 0.4));
}

.page-home__download-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin: 2rem 0 1.25rem;
}

.page-home__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 1rem;
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 40px;
  text-decoration: none;
  transition: background var(--transition, 0.3s ease), transform var(--transition, 0.3s ease), box-shadow var(--transition, 0.3s ease);
  cursor: pointer;
  border: none;
}

.page-home__btn--gold {
  background: var(--color-gold, #D4AF37);
  color: var(--color-text-dark, #1A1A1A);
  box-shadow: 0 4px 20px rgba(212, 175, 55, 0.35);
}

.page-home__btn--gold:hover,
.page-home__btn--gold:focus-visible {
  background: var(--color-bright-yellow, #FFD700);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(212, 175, 55, 0.5);
  outline: none;
}

.page-home__btn--outline {
  background: transparent;
  color: var(--color-text-light, #F5F5F5);
  border: 1px solid rgba(212, 175, 55, 0.5);
}

.page-home__btn--outline:hover,
.page-home__btn--outline:focus-visible {
  background: rgba(212, 175, 55, 0.12);
  border-color: var(--color-gold, #D4AF37);
  transform: translateY(-2px);
  outline: none;
}

.page-home__download-note {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.8rem;
  color: rgba(245, 245, 245, 0.5);
  margin: 0.75rem 0 0;
  letter-spacing: 0.03em;
}

/* ---- 反馈区 ---- */
.page-home__section--feedback {
  background: var(--color-bg-light, #FFF8DC);
}

.page-home__feedback-img {
  width: min(100%, 400px);
  height: auto;
  border-radius: 12px;
  margin-bottom: 1.5rem;
  object-fit: cover;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
}

.page-home__feedback-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin: 2rem 0 1.5rem;
}

.page-home__feedback-item {
  background: #ffffff;
  padding: 1.25rem 1.5rem;
  border-radius: 10px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  border-left: 4px solid var(--color-gold, #D4AF37);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.page-home__feedback-label {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gold, #D4AF37);
}

.page-home__feedback-value {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--color-text-dark, #1A1A1A);
}

.page-home__feedback-value--link {
  color: var(--color-deep-red, #8B0000);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--transition, 0.3s ease);
}

.page-home__feedback-value--link:hover,
.page-home__feedback-value--link:focus-visible {
  color: var(--color-gold, #D4AF37);
  text-decoration: underline;
  outline: none;
}

.page-home__feedback-note {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.8rem;
  color: rgba(26, 26, 26, 0.5);
}

.page-home__feedback-extra {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.85rem;
  color: var(--color-text-dark, #1A1A1A);
  opacity: 0.6;
  margin: 0.5rem 0 0;
  text-align: center;
}

/* ---- 信任声明 ---- */
.page-home__trust {
  background: var(--color-bg-dark, #1A1A1A);
  padding: 2.5rem 1.5rem;
  text-align: center;
}

.page-home__trust-inner {
  max-width: var(--content-max, 980px);
  margin: 0 auto;
}

.page-home__trust-text {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-light, #F5F5F5);
  opacity: 0.75;
  max-width: 600px;
  margin: 0 auto 1.5rem;
}

.page-home__trust-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: center;
}

.page-home__trust-link {
  font-family: var(--font-body, Arial, Helvetica, sans-serif);
  font-size: 0.88rem;
  color: var(--color-gold, #D4AF37);
  text-decoration: none;
  transition: color var(--transition, 0.3s ease);
  letter-spacing: 0.03em;
}

.page-home__trust-link:hover,
.page-home__trust-link:focus-visible {
  color: var(--color-bright-yellow, #FFD700);
  text-decoration: underline;
  outline: none;
}

/* ---- 返回顶部占位 ---- */
.page-home__back-top {
  display: none;
}

/* ---- 滚动显现（渐进增强） ---- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ===== 桌面端媒体查询 ===== */
@media (min-width: 768px) {
  .page-home__intro {
    flex-direction: row;
    gap: 3.5rem;
    padding: 3rem 5vw 5rem;
    align-items: center;
    justify-content: center;
  }

  .page-home__brand {
    align-items: flex-start;
    text-align: left;
    flex: 0 0 42%;
    max-width: 420px;
  }

  .page-home__brand-desc {
    margin-left: 0;
  }

  .page-home__brand-badge {
    align-self: flex-start;
  }

  .page-home__toc {
    flex: 0 0 48%;
    max-width: 480px;
  }

  .page-home__toc-link {
    padding: 1rem 1.5rem;
  }

  .page-home__toc-num {
    font-size: 1.8rem;
  }

  .page-home__section {
    padding: var(--home-section-pad) 3rem;
  }

  .page-home__timeline {
    padding-left: 2.5rem;
  }

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

  .page-home__feedback-item {
    padding: 1.5rem 1.75rem;
  }

  .page-home__download-card {
    padding: 3.5rem 3rem;
  }

  .page-home__trust {
    padding: 3rem 3rem;
  }
}

@media (min-width: 1024px) {
  .page-home__intro {
    padding: 4rem 8vw 6rem;
    gap: 5rem;
  }

  .page-home__brand {
    flex: 0 0 40%;
  }

  .page-home__toc {
    flex: 0 0 45%;
  }

  .page-home__section {
    padding: var(--home-section-pad) 4rem;
  }

  .page-home__timeline {
    padding-left: 3rem;
    gap: 3rem;
  }

  .page-home__timeline-content {
    padding: 1.5rem 2rem;
  }
}

/* ===== 超大屏 内容宽度封顶 ===== */
@media (min-width: 1200px) {
  .page-home__intro {
    padding: 5rem calc((100vw - var(--content-max, 980px)) / 2) 6rem;
  }

  .page-home__section {
    padding-left: calc((100vw - var(--content-max, 980px)) / 2);
    padding-right: calc((100vw - var(--content-max, 980px)) / 2);
  }
}