.page-home {
  --page-hero-title-size: clamp(2.8rem, 6vw, 4.8rem);
  --page-hero-sub-size: clamp(1rem, 1.8vw, 1.25rem);
  --page-card-radius: 12px;
  --page-gold-gradient: linear-gradient(135deg, var(--color-primary-gold), var(--color-accent-gold-light));
  --page-dark-gradient: linear-gradient(135deg, var(--color-background-dark), var(--color-primary-dark-green));
  --page-stat-card-min-height: 260px;
  --page-timeline-accent: var(--color-primary-gold);
  display: block;
  width: 100%;
  overflow-x: hidden;
}

/* ── 面包屑 ── */
.page-home__breadcrumb {
  position: absolute;
  top: calc(var(--header-height, 60px) + 0.5rem);
  left: 1rem;
  z-index: 10;
  font-size: var(--font-size-index);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-on-dark);
  opacity: 0.7;
}
.page-home__breadcrumb .breadcrumb__item--current {
  color: var(--color-primary-gold);
}

/* ── 首屏 Hero ── */
.page-home__hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--page-dark-gradient);
}
.page-home__hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.page-home__hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  opacity: 0.25;
}
.page-home__hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(13,27,26,0.88) 40%, rgba(13,27,26,0.4) 75%, transparent 100%);
}
.page-home__hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding-top: 4rem;
  padding-bottom: 3rem;
  gap: 2rem;
}
.page-home__hero-text {
  flex: 1 1 60%;
  max-width: 720px;
}
.page-home__hero-title {
  font-family: var(--font-headings);
  font-size: var(--page-hero-title-size);
  font-weight: 700;
  line-height: 1.05;
  color: var(--color-secondary-white);
  margin: 0 0 0.75rem;
  letter-spacing: -0.02em;
}
.page-home__hero-title-sep {
  color: var(--color-primary-gold);
  margin: 0 0.15em;
}
.page-home__hero-sub {
  font-family: var(--font-body);
  font-size: var(--page-hero-sub-size);
  font-weight: 300;
  line-height: 1.6;
  color: var(--color-text-on-dark);
  opacity: 0.9;
  max-width: 600px;
  margin: 0 0 2rem;
}
.page-home__hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-home__btn-primary {
  background: var(--color-primary-gold);
  color: var(--color-background-dark);
  border: none;
  padding: 0.75rem 2rem;
  font-weight: 600;
  transition: all var(--transition-base);
}
.page-home__btn-primary:hover {
  background: var(--color-accent-gold-light);
  box-shadow: var(--shadow-glow-gold);
  transform: translateY(-2px);
}
.page-home__btn-ghost {
  background: transparent;
  color: var(--color-primary-gold);
  border: 1px solid var(--color-primary-gold);
  padding: 0.75rem 2rem;
  font-weight: 500;
  transition: all var(--transition-base);
}
.page-home__btn-ghost:hover {
  background: rgba(201,168,76,0.12);
  box-shadow: var(--shadow-glow-gold);
  transform: translateY(-2px);
}
.page-home__hero-deco {
  flex: 0 0 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.6;
}
.page-home__hero-deco-svg {
  width: 100%;
  height: auto;
}

/* ── 通用节标题 ── */
.page-home__section-header {
  margin-bottom: 2.5rem;
  max-width: 640px;
}
.page-home__section-header--light {
  color: var(--color-text-on-dark);
}
.page-home__section-header--light .page-home__section-title {
  color: var(--color-secondary-white);
}
.page-home__section-header--light .page-home__section-desc {
  color: rgba(234,234,234,0.8);
}
.page-home__section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--font-size-index);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-primary-gold);
  margin-bottom: 0.5rem;
  border-left: 3px solid var(--color-primary-gold);
  padding-left: 0.75rem;
}
.page-home__section-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-h2);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text-dark);
  margin: 0 0 0.5rem;
}
.page-home__section-desc {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-secondary-mid-gray);
  margin: 0;
}

/* ── 数据概览卡片 ── */
.page-home__stats {
  background: var(--color-secondary-white);
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xxl);
}
.page-home__stats-grid {
  display: grid;
  gap: 1.5rem;
}
@media (min-width: 768px) {
  .page-home__stats-grid.grid--3 {
    grid-template-columns: repeat(3, 1fr);
  }
}
.page-home__stat-card {
  position: relative;
  min-height: var(--page-stat-card-min-height);
  padding: 1.5rem;
  background: var(--color-secondary-light-gray);
  border-radius: var(--page-card-radius);
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: default;
}
.page-home__stat-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}
.page-home__stat-card--highlight {
  background: linear-gradient(145deg, var(--color-primary-dark-green), var(--color-accent-green-light));
  color: var(--color-secondary-white);
}
.page-home__stat-card--highlight .page-home__stat-card-title,
.page-home__stat-card--highlight .page-home__stat-card-number,
.page-home__stat-card--highlight .page-home__stat-card-unit,
.page-home__stat-card--highlight .page-home__stat-card-desc {
  color: var(--color-secondary-white);
}
.page-home__stat-card--gold {
  background: var(--page-gold-gradient);
  color: var(--color-background-dark);
}
.page-home__stat-card--gold .page-home__stat-card-title,
.page-home__stat-card--gold .page-home__stat-card-number,
.page-home__stat-card--gold .page-home__stat-card-unit,
.page-home__stat-card--gold .page-home__stat-card-desc {
  color: var(--color-background-dark);
}
.page-home__stat-card-bg {
  position: absolute;
  top: -20%;
  right: -10%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: rgba(201,168,76,0.08);
  pointer-events: none;
}
.page-home__stat-card--highlight .page-home__stat-card-bg {
  background: rgba(255,255,255,0.06);
}
.page-home__stat-card--gold .page-home__stat-card-bg {
  background: rgba(13,27,26,0.06);
}
.page-home__stat-card-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-h3);
  font-weight: 700;
  margin: 0 0 0.5rem;
  position: relative;
  z-index: 1;
}
.page-home__stat-card-meta {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
  position: relative;
  z-index: 1;
}
.page-home__stat-card-number {
  font-family: var(--font-data);
  font-size: 2.4rem;
  font-weight: 500;
  line-height: 1;
  color: var(--color-primary-dark-green);
}
.page-home__stat-card-unit {
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  color: var(--color-secondary-mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.page-home__stat-card-desc {
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  line-height: 1.5;
  color: var(--color-secondary-mid-gray);
  margin: 0 0 0.75rem;
  position: relative;
  z-index: 1;
  flex: 1;
}
.page-home__stat-card-img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  border-radius: 6px;
  opacity: 0.3;
  mix-blend-mode: overlay;
  position: relative;
  z-index: 1;
  margin-top: auto;
}
.page-home__stat-card--highlight .page-home__stat-card-img,
.page-home__stat-card--gold .page-home__stat-card-img {
  opacity: 0.2;
}

/* ── 旧版帮助 ── */
.page-home__help {
  background: var(--page-dark-gradient);
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xxl);
}
.page-home__help-layout {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}
@media (min-width: 900px) {
  .page-home__help-layout {
    flex-direction: row;
    align-items: stretch;
    gap: 3rem;
  }
  .page-home__help-timeline {
    flex: 0 0 45%;
  }
  .page-home__help-visual {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
  }
}
.page-home__help-timeline {
  position: relative;
  padding-left: 2rem;
  border-left: 2px solid rgba(201,168,76,0.3);
}
.page-home__help-timeline-item {
  position: relative;
  padding-bottom: 2rem;
}
.page-home__help-timeline-item:last-child {
  padding-bottom: 0;
}
.page-home__help-timeline-dot {
  position: absolute;
  left: calc(-2rem - 6px);
  top: 0.25rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--color-primary-gold);
  border: 2px solid var(--color-background-dark);
  box-shadow: 0 0 0 2px var(--color-primary-gold);
}
.page-home__help-timeline-content {
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  transition: background var(--transition-base);
}
.page-home__help-timeline-content:hover {
  background: rgba(255,255,255,0.08);
}
.page-home__help-timeline-label {
  display: block;
  font-family: var(--font-headings);
  font-size: var(--font-size-h3);
  font-weight: 600;
  color: var(--color-primary-gold);
  margin-bottom: 0.2rem;
}
.page-home__help-timeline-text {
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  line-height: 1.5;
  color: var(--color-text-on-dark);
  opacity: 0.8;
  margin: 0;
}
.page-home__help-visual {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}
.page-home__help-img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
  border-radius: var(--page-card-radius);
  box-shadow: var(--shadow-md);
}
.page-home__help-btn {
  align-self: flex-start;
}

/* ── 实时对比 ── */
.page-home__compare {
  background: var(--color-secondary-white);
  padding-top: var(--spacing-xxl);
  padding-bottom: var(--spacing-xxl);
}
.page-home__compare-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}
.page-home__compare-tab {
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  background: var(--color-secondary-light-gray);
  color: var(--color-text-dark);
  border: 1px solid transparent;
  border-radius: 40px;
  cursor: pointer;
  transition: all var(--transition-base);
}
.page-home__compare-tab:hover {
  background: var(--color-primary-gold);
  color: var(--color-background-dark);
}
.page-home__compare-tab--active {
  background: var(--color-primary-dark-green);
  color: var(--color-secondary-white);
  border-color: var(--color-primary-gold);
}
.page-home__compare-panels {
  position: relative;
}
.page-home__compare-panel {
  display: none;
  animation: pageHomeFadeIn 0.4s ease;
}
.page-home__compare-panel--active {
  display: block;
}
@keyframes pageHomeFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.page-home__compare-grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}
@media (min-width: 600px) {
  .page-home__compare-grid.grid--2 {
    grid-template-columns: 1fr 1fr;
  }
}
.page-home__compare-card {
  padding: 1.5rem;
  background: var(--color-secondary-light-gray);
  border-radius: var(--page-card-radius);
  border-left: 4px solid var(--color-primary-dark-green);
  transition: all var(--transition-base);
}
.page-home__compare-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.page-home__compare-card--gold {
  border-left-color: var(--color-primary-gold);
  background: linear-gradient(145deg, var(--color-secondary-white), var(--color-secondary-light-gray));
}
.page-home__compare-card-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-h3);
  font-weight: 700;
  margin: 0 0 1rem;
  color: var(--color-text-dark);
}
.page-home__compare-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.page-home__compare-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(176,176,176,0.2);
}
.page-home__compare-item:last-child {
  border-bottom: none;
}
.page-home__compare-key {
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  color: var(--color-secondary-mid-gray);
}
.page-home__compare-val {
  font-family: var(--font-data);
  font-size: var(--font-size-body);
  font-weight: 500;
  color: var(--color-primary-dark-green);
}
.page-home__compare-card--gold .page-home__compare-val {
  color: var(--color-primary-dark-green);
}
.page-home__compare-img {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: var(--page-card-radius);
  box-shadow: var(--shadow-sm);
  margin-top: 0.5rem;
}

/* ── 底部号召 CTA ── */
.page-home__cta {
  background: var(--color-secondary-light-gray);
  padding-top: var(--spacing-xl);
  padding-bottom: var(--spacing-xl);
}
.page-home__cta-card {
  background: var(--page-dark-gradient);
  border-radius: var(--page-card-radius);
  padding: 3rem 2.5rem;
  text-align: center;
  box-shadow: var(--shadow-md);
}
.page-home__cta-title {
  font-family: var(--font-headings);
  font-size: var(--font-size-h2);
  font-weight: 700;
  color: var(--color-secondary-white);
  margin: 0 0 0.75rem;
}
.page-home__cta-desc {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.6;
  color: var(--color-text-on-dark);
  opacity: 0.85;
  max-width: 560px;
  margin: 0 auto 2rem;
}
.page-home__cta-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── 右下角反馈浮钮 ── */
.page-home__feedback-fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
}
.page-home__feedback-fab-link {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  background: var(--color-primary-gold);
  color: var(--color-background-dark);
  border-radius: 40px;
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(201,168,76,0.35);
  transition: all var(--transition-base);
}
.page-home__feedback-fab-link:hover {
  background: var(--color-accent-gold-light);
  box-shadow: 0 6px 28px rgba(201,168,76,0.5);
  transform: scale(1.04);
}
.page-home__feedback-fab-text {
  display: inline-block;
}

/* ── 响应式：窄屏 ── */
@media (max-width: 767px) {
  .page-home__hero {
    min-height: 70vh;
  }
  .page-home__hero-content {
    flex-direction: column;
    align-items: flex-start;
    padding-top: 5rem;
    gap: 1.5rem;
  }
  .page-home__hero-text {
    max-width: 100%;
  }
  .page-home__hero-title {
    font-size: clamp(2rem, 10vw, 2.8rem);
  }
  .page-home__hero-deco {
    display: none;
  }
  .page-home__hero-actions {
    flex-direction: column;
    width: 100%;
  }
  .page-home__hero-actions .btn {
    width: 100%;
    text-align: center;
  }
  .page-home__stats-grid.grid--3 {
    grid-template-columns: 1fr;
  }
  .page-home__stat-card {
    min-height: 200px;
  }
  .page-home__help-layout {
    flex-direction: column;
  }
  .page-home__help-timeline {
    padding-left: 1.5rem;
  }
  .page-home__compare-grid.grid--2 {
    grid-template-columns: 1fr;
  }
  .page-home__compare-tabs {
    gap: 0.4rem;
  }
  .page-home__compare-tab {
    font-size: 0.75rem;
    padding: 0.4rem 0.9rem;
  }
  .page-home__cta-card {
    padding: 2rem 1.5rem;
  }
  .page-home__cta-title {
    font-size: var(--font-size-h3);
  }
  .page-home__feedback-fab {
    bottom: 1rem;
    right: 1rem;
  }
  .page-home__feedback-fab-link {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
  }
  .page-home__feedback-fab-text {
    display: none;
  }
}

/* ── 桌面增强 ── */
@media (min-width: 1200px) {
  .page-home__hero-title {
    font-size: 4.8rem;
  }
  .page-home__stat-card {
    padding: 2rem;
  }
  .page-home__compare-card {
    padding: 2rem;
  }
}