.page-home {
  --page-home-hero-min-height: 90vh;
  --page-home-dashboard-gap: 1rem;
  --page-home-card-transition: 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --page-home-accent: #FF6F00;
  --page-home-accent-light: #FF9100;
  --page-home-data-green: #00BFA5;
  --page-home-primary-dark: #0D47A1;
  --page-home-silver: #E0E0E0;
  --page-home-white: #FFFFFF;
  --page-home-black: #1B1B1B;
}

.page-home *,
.page-home *::before,
.page-home *::after { box-sizing: border-box; }

/* 首屏数据看板 */
.page-home__hero {
  position: relative;
  min-height: var(--page-home-hero-min-height);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--page-home-primary-dark);
}

.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%;
  max-width: 100%;
  display: block;
}

.page-home__hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(135deg, rgba(10,61,98,0.85) 0%, rgba(13,71,161,0.65) 60%, rgba(0,0,0,0.3) 100%);
}

.page-home__hero-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  width: 100%;
  padding: 2rem 1rem;
}

.page-home__hero-title {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 800;
  font-style: italic;
  letter-spacing: var(--letter-spacing-heading);
  line-height: 1.1;
  color: var(--page-home-white);
  margin: 0;
  text-shadow: 0 2px 12px rgba(0,0,0,0.4);
}

.page-home__hero-sub {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--page-home-silver);
  margin: 0.5rem 0 0;
  max-width: 520px;
}

.page-home__dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--page-home-dashboard-gap);
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-radius: var(--radius-card);
  padding: 1.25rem;
  border: 1px solid rgba(255,255,255,0.12);
  max-width: 480px;
}

.page-home__dashboard-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.35rem;
}

.page-home__dashboard-label {
  font-family: var(--font-body);
  font-size: var(--size-small);
  color: var(--page-home-silver);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.page-home__dashboard-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--page-home-accent);
  line-height: 1;
}

/* 核心功能预览 */
.page-home__preview {
  padding: 3rem 1rem;
}

.page-home__preview-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.page-home__preview-card {
  display: flex;
  flex-direction: column;
  background: var(--page-home-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: transform var(--page-home-card-transition), box-shadow var(--page-home-card-transition);
  cursor: default;
  border: 1px solid rgba(0,0,0,0.04);
}

.page-home__preview-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.1);
}

.page-home__preview-card-media {
  width: 100%;
  height: 200px;
  overflow: hidden;
  background: var(--page-home-silver);
}

.page-home__preview-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  max-width: 100%;
  display: block;
  transition: transform 0.45s ease;
}

.page-home__preview-card:hover .page-home__preview-card-media img {
  transform: scale(1.04);
}

.page-home__preview-card-body {
  padding: 1.25rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.page-home__preview-card-title {
  font-family: var(--font-heading);
  font-size: var(--size-h3);
  font-weight: 700;
  font-style: italic;
  letter-spacing: var(--letter-spacing-heading);
  color: var(--page-home-black);
  margin: 0;
}

.page-home__preview-card-desc {
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: var(--line-height-body);
  color: #555;
  margin: 0;
}

/* APP通道入口 */
.page-home__app-entry {
  position: relative;
  padding: 3rem 0;
  background-color: var(--page-home-silver);
  overflow: hidden;
}

.page-home__app-entry-bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, #E0E0E0 30%, #F5F5F5 100%);
  transform: skewY(-2deg);
  transform-origin: top left;
  z-index: 0;
}

.page-home__app-entry-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 0 1rem;
}

.page-home__app-entry-info {
  max-width: 480px;
  text-align: center;
}

.page-home__app-entry-desc {
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: var(--line-height-body);
  color: #333;
  margin: 0.5rem 0 1.25rem;
}

.page-home__app-entry-features {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.page-home__app-entry-features li {
  position: relative;
  padding-left: 1.5rem;
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--page-home-black);
}

.page-home__app-entry-features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.35em;
  width: 10px;
  height: 10px;
  background: var(--page-home-data-green);
  border-radius: 2px;
  transform: rotate(45deg);
}

.page-home__app-entry-mockup {
  flex-shrink: 0;
  width: 200px;
  max-width: 100%;
}

.page-home__mockup-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: var(--radius-card);
  box-shadow: 0 8px 28px rgba(0,0,0,0.12);
}

/* 使用场景 */
.page-home__scene {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 3rem 1rem;
}

.page-home__scene-content {
  max-width: 520px;
}

.page-home__scene-desc {
  font-family: var(--font-body);
  font-size: var(--size-body);
  line-height: var(--line-height-body);
  color: #444;
  margin: 0.75rem 0 0;
}

.page-home__scene-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.page-home__scene-img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
}

/* CTA行动区 */
.page-home__cta {
  padding: 3rem 0;
  background: linear-gradient(135deg, var(--page-home-primary-dark) 0%, #0A3D62 100%);
}

.page-home__cta-inner {
  padding: 0 1rem;
}

.page-home__cta-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.page-home__cta-qr {
  width: 140px;
  height: 140px;
  border-radius: var(--radius-card);
  overflow: hidden;
  background: var(--page-home-white);
  padding: 0.5rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
}

.page-home__cta-qr img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
}

.page-home__cta-text {
  max-width: 400px;
}

.page-home__cta-desc {
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--page-home-silver);
  margin: 0.5rem 0 1.25rem;
}

/* FAQ预览 */
.page-home__faq-preview {
  padding: 3rem 1rem;
}

.page-home__faq-preview-inner {
  text-align: center;
}

.page-home__faq-list {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.page-home__faq-list li a {
  font-family: var(--font-body);
  font-size: var(--size-body);
  color: var(--page-home-primary-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.page-home__faq-list li a:hover,
.page-home__faq-list li a:focus {
  border-bottom-color: var(--page-home-accent);
  color: var(--page-home-accent);
}

/* 响应式桌面 */
@media (min-width: 768px) {
  .page-home__hero-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 3rem 2rem;
  }

  .page-home__hero-title {
    font-size: 4rem;
    max-width: 600px;
  }

  .page-home__hero-sub {
    font-size: 1.15rem;
  }

  .page-home__dashboard {
    grid-template-columns: repeat(2, 1fr);
    min-width: 320px;
    padding: 1.5rem;
  }

  .page-home__dashboard-value {
    font-size: 2.6rem;
  }

  .page-home__preview-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .page-home__preview-card-media {
    height: 240px;
  }

  .page-home__app-entry-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }

  .page-home__app-entry-info {
    text-align: left;
  }

  .page-home__app-entry-mockup {
    width: 260px;
  }

  .page-home__scene {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }

  .page-home__scene-content {
    flex: 1;
  }

  .page-home__scene-media {
    flex: 1;
  }

  .page-home__cta-card {
    flex-direction: row;
    text-align: left;
    justify-content: center;
    gap: 2.5rem;
  }

  .page-home__cta-text {
    text-align: left;
  }

  .page-home__faq-list {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 2rem;
    max-width: none;
  }
}

@media (min-width: 1024px) {
  .page-home__hero {
    min-height: 85vh;
  }

  .page-home__hero-title {
    font-size: 5rem;
  }

  .page-home__dashboard {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding: 2rem;
  }

  .page-home__dashboard-value {
    font-size: 3rem;
  }

  .page-home__app-entry-mockup {
    width: 300px;
  }

  .page-home__cta-qr {
    width: 160px;
    height: 160px;
  }
}