.page-products {
  --brand-primary: #FF4500;
  --brand-secondary: #00BFFF;
  --brand-accent: #FFD700;
  --bg-dark: #0D0D0D;
  --bg-card: #1A1A1A;
  --text-primary: #FFFFFF;
  --text-secondary: #B0B0B0;
  --border-color: #333;
  --border-active: #FF4500;
  --font-heading: var(--font-heading, 'Impact', 'Arial Black', sans-serif);
  --font-body: var(--font-body, 'Helvetica Neue', 'Arial', sans-serif);
  --font-numeric: var(--font-numeric, 'Courier New', monospace);
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  display: block;
  background: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  max-width: 100%;
  overflow-x: hidden;
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm, 0.5rem);
  font-size: var(--scale-small, 0.875rem);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md, 1rem);
}
.breadcrumb .nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast, 0.15s ease);
}
.breadcrumb .nav-link:hover {
  color: var(--brand-accent);
}
.breadcrumb .sep {
  color: var(--border-color);
}

/* hero 首屏 */
.page-products__hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) var(--spacing-lg);
  gap: var(--spacing-lg);
  border-bottom: var(--border-width-thick, 4px) solid var(--border-active);
  position: relative;
}
.page-products__hero::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
  opacity: 0.6;
}
.page-products__hero-phone {
  flex: 0 0 auto;
  width: 160px;
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: var(--border-width-thick, 4px) solid var(--border-active);
  border-radius: 38px;
  box-shadow: var(--shadow-heavy, 0 8px 32px rgba(0,0,0,0.6)), 0 0 20px rgba(255,69,0,0.3);
  transform: rotate(-5deg);
  transition: transform var(--transition-base, 0.25s ease);
}
.page-products__hero-phone:hover {
  transform: rotate(0deg) scale(1.05);
}
.page-products__hero-icon {
  width: 120px;
  height: auto;
  max-width: 100%;
  object-fit: contain;
}
.page-products__hero-text {
  flex: 1 1 300px;
  text-align: left;
}
.page-products__hero-heading {
  font-family: var(--font-heading);
  font-size: var(--scale-h1, 4rem);
  font-weight: var(--weight-heading, 900);
  text-transform: uppercase;
  color: var(--brand-primary);
  line-height: 1.1;
  margin: 0;
}
.page-products__hero-sub {
  font-family: var(--font-heading);
  font-size: var(--scale-h3, 1.75rem);
  color: var(--brand-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: var(--spacing-sm, 0.5rem) 0;
}
.page-products__hero-desc {
  font-size: var(--scale-body, 1rem);
  color: var(--text-secondary);
  border-left: var(--border-width-thick, 4px) solid var(--brand-accent);
  padding-left: var(--spacing-md, 1rem);
  margin: var(--spacing-md, 1rem) 0;
}
.page-products__hero-actions {
  display: flex;
  gap: var(--spacing-md, 1rem);
  flex-wrap: wrap;
  margin-top: var(--spacing-lg, 2rem);
}
.page-products__hero-actions .btn-primary {
  background: var(--brand-primary);
  color: #000;
  border: none;
  padding: 0.75rem 2rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-block;
  transition: background var(--transition-base), transform var(--transition-base);
}
.page-products__hero-actions .btn-primary:hover {
  background: #E03D00;
  transform: translateY(-2px);
}
.page-products__hero-actions .btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: var(--border-width-thick, 4px) solid var(--border-color);
  padding: 0.75rem 2rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-block;
  transition: border-color var(--transition-base), transform var(--transition-base);
}
.page-products__hero-actions .btn-outline:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
  transform: translateY(-2px);
}

/* 概览区 */
.page-products__overview {
  padding: var(--spacing-2xl) var(--spacing-lg);
  border-bottom: var(--border-width-thin, 1px) solid var(--border-color);
}
.page-products__overview-layout {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: var(--spacing-2xl);
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
}
.page-products__overview-screenshot {
  flex: 0 0 auto;
  width: 280px;
  max-width: 100%;
}
.page-products__overview-img {
  width: 100%;
  height: auto;
  max-width: 400px;
  display: block;
  border: var(--border-width-thin, 1px) solid var(--border-color);
  box-shadow: var(--shadow-heavy, 0 8px 32px rgba(0,0,0,0.6));
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}
.page-products__overview-img:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 40px rgba(255,69,0,0.3);
}
.page-products__overview-content {
  flex: 1 1 400px;
}
.page-products__section-title {
  font-family: var(--font-heading);
  font-size: var(--scale-h2, 2.5rem);
  font-weight: var(--weight-heading, 900);
  text-transform: uppercase;
  color: var(--text-primary);
  margin: 0 0 var(--spacing-md, 1rem);
  position: relative;
  display: inline-block;
}
.page-products__section-title::after {
  content: '';
  display: block;
  width: 60%;
  height: 4px;
  background: var(--brand-primary);
  margin-top: var(--spacing-xs, 0.25rem);
}
.page-products__feature-list {
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0;
}
.page-products__feature-item {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-md, 1rem);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
  font-size: var(--scale-body, 1rem);
}
.page-products__feature-item .numeric {
  font-family: var(--font-numeric);
  color: var(--brand-accent);
  font-size: 1.25rem;
  font-weight: 700;
  min-width: 2.5rem;
}
.page-products__overview-content .btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: var(--border-width-thick, 4px) solid var(--border-color);
  padding: 0.5rem 1.5rem;
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  display: inline-block;
  transition: border-color var(--transition-base), color var(--transition-base);
}
.page-products__overview-content .btn-outline:hover {
  border-color: var(--brand-secondary);
  color: var(--brand-secondary);
}

/* 功能亮点区 */
.page-products__highlights {
  padding: var(--spacing-2xl) var(--spacing-lg);
  border-bottom: var(--border-width-thin, 1px) solid var(--border-color);
}
.page-products__highlights-header {
  max-width: var(--max-width, 1280px);
  margin: 0 auto var(--spacing-xl);
}
.page-products__highlights-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
}
@media (min-width: 640px) {
  .page-products__highlights-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 960px) {
  .page-products__highlights-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}
.page-products__highlight-card {
  background: var(--bg-card);
  border: var(--border-width-thick, 4px) solid var(--border-color);
  padding: var(--spacing-lg);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.page-products__highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow, 0 0 20px rgba(255,69,0,0.3));
  border-color: var(--border-active);
}
.page-products__highlight-icon {
  font-size: 2rem;
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}
.page-products__highlight-title {
  font-family: var(--font-heading);
  font-size: var(--scale-h3, 1.75rem);
  font-weight: var(--weight-heading, 900);
  text-transform: uppercase;
  color: var(--text-primary);
  margin: 0;
}
.page-products__highlight-card--wide {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg);
}
.page-products__highlight-media {
  flex: 0 0 auto;
  width: 200px;
  max-width: 100%;
}
@media (min-width: 640px) {
  .page-products__highlight-media {
    width: 280px;
  }
}
.page-products__highlight-img {
  width: 100%;
  height: auto;
  max-width: 400px;
  display: block;
  border: var(--border-width-thin, 1px) solid var(--border-color);
  box-shadow: var(--shadow-heavy, 0 8px 32px rgba(0,0,0,0.6));
}
.page-products__highlight-content {
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}
.page-products__highlight-content .btn-primary {
  align-self: flex-start;
  background: var(--brand-primary);
  color: #000;
  border: none;
  padding: 0.5rem 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
  transition: background var(--transition-base);
}
.page-products__highlight-content .btn-primary:hover {
  background: #E03D00;
}
.page-products__highlight-content .btn-outline {
  align-self: flex-start;
  background: transparent;
  color: var(--text-primary);
  border: var(--border-width-thick, 4px) solid var(--border-color);
  padding: 0.5rem 1.5rem;
  text-decoration: none;
  font-weight: 700;
  text-transform: uppercase;
  transition: border-color var(--transition-base), color var(--transition-base);
}
.page-products__highlight-content .btn-outline:hover {
  border-color: var(--brand-accent);
  color: var(--brand-accent);
}

/* 下载与安装区 */
.page-products__download {
  padding: var(--spacing-2xl) var(--spacing-lg);
}
.page-products__download-container {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-2xl);
  max-width: var(--max-width, 1280px);
  margin: 0 auto;
}
.page-products__download-info {
  flex: 1 1 400px;
}
.page-products__download-steps {
  list-style: none;
  padding: 0;
  margin: var(--spacing-lg) 0;
}
.page-products__download-step {
  display: flex;
  align-items: center;
  gap: var(--spacing-md, 1rem);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-color);
  font-size: var(--scale-body, 1rem);
}
.page-products__download-step .numeric {
  font-family: var(--font-numeric);
  color: var(--brand-accent);
  font-size: 1.25rem;
  font-weight: 700;
  min-width: 2rem;
}
.page-products__download-qrcode {
  flex: 0 0 auto;
  text-align: center;
  width: 300px;
  max-width: 100%;
}
.page-products__qrcode-img {
  width: 100%;
  height: auto;
  max-width: 300px;
  display: block;
  border: var(--border-width-thin, 1px) solid var(--border-color);
  box-shadow: var(--shadow-heavy, 0 8px 32px rgba(0,0,0,0.6));
  transition: transform var(--transition-base);
}
.page-products__qrcode-img:hover {
  transform: scale(1.08);
}
.page-products__download-info .nav-link {
  color: var(--brand-secondary);
  text-decoration: none;
  font-weight: 700;
}
.page-products__download-info .nav-link:hover {
  text-decoration: underline;
  color: var(--brand-primary);
}

/* 响应式 */
@media (max-width: 640px) {
  .page-products__hero {
    padding: var(--spacing-lg) var(--spacing-md);
    flex-direction: column;
    text-align: center;
  }
  .page-products__hero-phone {
    width: 120px;
    height: 120px;
    border-radius: 28px;
  }
  .page-products__hero-icon {
    width: 80px;
  }
  .page-products__hero-text {
    text-align: center;
  }
  .page-products__hero-heading {
    font-size: var(--scale-h2, 2.5rem);
  }
  .page-products__hero-sub {
    font-size: var(--scale-h3, 1.75rem);
  }
  .page-products__hero-desc {
    border-left: none;
    border-top: var(--border-width-thick, 4px) solid var(--brand-accent);
    padding-left: 0;
    padding-top: var(--spacing-sm);
  }
  .page-products__hero-actions {
    justify-content: center;
  }
  .page-products__overview {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  .page-products__overview-layout {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-lg);
  }
  .page-products__overview-screenshot {
    width: 200px;
  }
  .page-products__overview-content {
    text-align: left;
  }
  .page-products__section-title {
    font-size: var(--scale-h3, 1.75rem);
    text-align: left;
  }
  .page-products__section-title::after {
    margin-left: 0;
    width: 40%;
  }
  .page-products__highlights {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  .page-products__highlights-grid {
    gap: var(--spacing-md);
  }
  .page-products__highlight-card {
    padding: var(--spacing-md);
  }
  .page-products__highlight-card--wide {
    flex-direction: column;
    padding: var(--spacing-md);
  }
  .page-products__highlight-media {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }
  .page-products__highlight-img {
    max-width: 100%;
  }
  .page-products__download {
    padding: var(--spacing-xl) var(--spacing-md);
  }
  .page-products__download-container {
    flex-direction: column;
    text-align: center;
  }
  .page-products__download-info {
    text-align: left;
  }
  .page-products__download-step {
    justify-content: flex-start;
  }
  .page-products__download-qrcode {
    width: 200px;
  }
  .page-products__qrcode-img {
    max-width: 200px;
    margin: 0 auto;
  }
}