.page-products {
  --products-accent: #FF6B35;
  --products-accent-light: #FF8C4D;
  --products-secondary: #00D4FF;
  --products-primary: #0B1D3A;
  --products-primary-light: #1A2D4A;
  --products-bg-light: #F4F4F4;
  --products-text-primary: #FFFFFF;
  --products-text-secondary: #B0C4DE;
  --products-border: #2C3E50;
  --products-font-heading: 800 2.5rem/1.2 Inter, Roboto, sans-serif;
  --products-font-subheading: 700 1.5rem/1.3 Inter, Roboto, sans-serif;
  --products-font-body: 400 1rem/1.6 Inter, Roboto, sans-serif;
  --products-font-small: 300 0.875rem/1.5 Inter, Roboto, sans-serif;
  --products-max-width: 1200px;

  display: block;
  max-width: var(--products-max-width);
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
  color: var(--products-text-primary);
  background-color: var(--products-primary);
  font: var(--products-font-body);
  letter-spacing: 0.02em;
}

/* ===== 面包屑 ===== */
.products-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0 0.5rem;
  font: var(--products-font-small);
  color: var(--products-text-secondary);
  border-bottom: 1px solid var(--products-border);
  margin-bottom: 2rem;
}
.products-breadcrumb__link {
  color: var(--products-text-secondary);
  text-decoration: none;
  transition: color 0.2s ease;
}
.products-breadcrumb__link:hover,
.products-breadcrumb__link:focus-visible {
  color: var(--products-accent);
  outline: none;
}
.products-breadcrumb__sep {
  color: var(--products-border);
  font-size: 0.75rem;
}
.products-breadcrumb__current {
  color: var(--products-accent);
  font-weight: 600;
}

/* ===== 通用章节头部 ===== */
.products-section__header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}
.products-section__number {
  font: var(--products-font-heading);
  font-size: 3rem;
  color: var(--products-accent);
  line-height: 1;
  letter-spacing: 0.05em;
}
.products-section__title {
  font: var(--products-font-subheading);
  font-size: 1.75rem;
  color: var(--products-text-primary);
  margin: 0;
  letter-spacing: 0.04em;
}
.products-section__intro {
  color: var(--products-text-secondary);
  font: var(--products-font-body);
  margin: 0 0 2rem 0;
  max-width: 640px;
  padding-left: calc(3rem + 0.75rem);
}

/* ===== Hero 区块 ===== */
.products-hero {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  padding: 1.5rem 0 3rem;
  border-bottom: 1px solid var(--products-border);
  margin-bottom: 3rem;
}
.products-hero__content {
  flex: 1;
}
.products-hero__title {
  font: var(--products-font-heading);
  font-size: 2rem;
  margin: 0 0 1rem;
  letter-spacing: 0.05em;
  color: var(--products-text-primary);
}
.products-hero__label {
  display: inline-block;
  background-color: var(--products-accent);
  color: var(--products-primary);
  font: var(--products-font-small);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.2rem 0.6rem;
  margin-bottom: 0.75rem;
  border-radius: 2px;
  font-size: 0.7rem;
}
.products-hero__desc {
  font: var(--products-font-body);
  font-size: 1.1rem;
  color: var(--products-text-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin: 0 0 1.25rem;
}
.products-hero__footnote {
  font: var(--products-font-small);
  color: var(--products-secondary);
  margin: 0;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.products-hero__footnote::before {
  content: "▸";
  color: var(--products-accent);
}
.products-hero__visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.products-hero__device {
  max-width: 100%;
  height: auto;
  object-fit: contain;
  border: 2px solid var(--products-border);
  border-radius: 8px;
  background-color: var(--products-primary-light);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  transition: transform 0.3s ease;
}

/* ===== 功能一览 ===== */
.products-features {
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--products-border);
  margin-bottom: 3rem;
}
.products-features__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}
.products-feature-card {
  background-color: var(--products-primary-light);
  border: 1px solid var(--products-border);
  padding: 1.5rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  border-radius: 4px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
  cursor: default;
}
.products-feature-card:hover,
.products-feature-card:focus-visible {
  transform: scale(1.02);
  box-shadow: 0 8px 24px rgba(255, 107, 53, 0.18);
  border-color: var(--products-accent);
  outline: none;
}
.products-feature-card__icon {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 4px;
  margin-bottom: 1rem;
  background-color: var(--products-bg-light);
  border: 1px solid var(--products-border);
  transition: border-color 0.3s ease;
}
.products-feature-card:hover .products-feature-card__icon {
  border-color: var(--products-accent);
}
.products-feature-card__title {
  font: var(--products-font-subheading);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
  color: var(--products-text-primary);
  letter-spacing: 0.03em;
}
.products-feature-card__text {
  font: var(--products-font-body);
  font-size: 0.95rem;
  color: var(--products-text-secondary);
  margin: 0;
  line-height: 1.6;
  max-width: 280px;
}

/* ===== 下载方式 ===== */
.products-download {
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--products-border);
  margin-bottom: 3rem;
}
.products-download__grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  margin-top: 1.5rem;
}
.products-download__qrcode {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}
.products-download__qr {
  max-width: 200px;
  height: auto;
  object-fit: contain;
  border: 2px solid var(--products-accent);
  border-radius: 4px;
  background-color: #fff;
  padding: 0.5rem;
  transition: transform 0.2s ease;
}
.products-download__qr:hover {
  transform: scale(1.02);
}
.products-download__qr-label {
  font: var(--products-font-small);
  color: var(--products-text-secondary);
  letter-spacing: 0.04em;
  margin: 0;
}
.products-download__actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  width: 100%;
  max-width: 360px;
}
.products-download__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.9rem 1.5rem;
  font: var(--products-font-body);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  border-radius: 4px;
  transition: background-color 0.2s ease, transform 0.15s ease;
}
.products-download__btn:active {
  transform: scale(0.97);
}
.products-download__btn:hover,
.products-download__btn:focus-visible {
  background-color: var(--products-accent-light);
  outline: none;
}
.products-download__btn-icon {
  font-size: 1.3rem;
  line-height: 1;
}
.products-download__note {
  font: var(--products-font-small);
  color: var(--products-text-secondary);
  text-align: center;
  margin: 0.5rem 0 0;
  max-width: 380px;
}
.products-download__mail {
  color: var(--products-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
.products-download__mail:hover,
.products-download__mail:focus-visible {
  color: var(--products-accent-light);
  outline: none;
  text-decoration: underline;
}

/* ===== 使用指南 ===== */
.products-guide {
  padding: 2rem 0 3rem;
  border-bottom: 1px solid var(--products-border);
  margin-bottom: 3rem;
}
.products-guide__steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 1.5rem;
}
.products-guide__step {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1.25rem;
  background-color: var(--products-primary-light);
  border: 1px solid var(--products-border);
  border-radius: 4px;
  transition: border-color 0.3s ease;
}
.products-guide__step:hover {
  border-color: var(--products-accent);
}
.products-guide__step-num {
  font: var(--products-font-heading);
  font-size: 2rem;
  color: var(--products-accent);
  line-height: 1;
}
.products-guide__step-img {
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  border: 1px solid var(--products-border);
  background-color: var(--products-bg-light);
}
.products-guide__step-text {
  font: var(--products-font-body);
  color: var(--products-text-secondary);
  margin: 0;
  line-height: 1.7;
}
.products-guide__step-strong {
  color: var(--products-text-primary);
  font-weight: 700;
  letter-spacing: 0.03em;
}

/* ===== 常见疑问预览 ===== */
.products-faq-preview {
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--products-border);
  margin-bottom: 2rem;
  text-align: center;
}
.products-faq-preview__heading {
  font: var(--products-font-subheading);
  font-size: 1.5rem;
  color: var(--products-text-primary);
  margin: 0 0 1.25rem;
  letter-spacing: 0.04em;
}
.products-faq-preview__list {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  align-items: center;
}
.products-faq-preview__item {
  margin: 0;
}
.products-faq-preview__link {
  color: var(--products-text-secondary);
  text-decoration: none;
  font: var(--products-font-body);
  font-size: 0.95rem;
  transition: color 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.products-faq-preview__link::before {
  content: "▹";
  color: var(--products-accent);
  font-size: 0.85rem;
}
.products-faq-preview__link:hover,
.products-faq-preview__link:focus-visible {
  color: var(--products-accent);
  outline: none;
}
.products-faq-preview__more {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.4rem;
  font: var(--products-font-small);
  font-weight: 600;
  letter-spacing: 0.04em;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
}
.products-faq-preview__more:hover,
.products-faq-preview__more:focus-visible {
  background-color: var(--products-accent);
  color: var(--products-primary);
  outline: none;
}

/* ===== 底部相关链接 ===== */
.products-extra {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
  padding: 1.5rem 0 2rem;
}
.products-extra__link {
  font: var(--products-font-small);
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 4px;
  transition: background-color 0.2s ease, color 0.2s ease;
  letter-spacing: 0.03em;
}
.products-extra__link:hover,
.products-extra__link:focus-visible {
  background-color: var(--products-accent);
  color: var(--products-primary);
  outline: none;
}

/* ===== 背景纹理 ===== */
.products-bg-texture {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 4px;
  margin-top: 1rem;
  opacity: 0.6;
  border: 1px solid var(--products-border);
}

/* ===== 按钮基类补强 (限定作用域) ===== */
.page-products .btn--primary {
  background-color: var(--products-accent);
  color: var(--products-primary);
  border: none;
  text-decoration: none;
}
.page-products .btn--primary:hover,
.page-products .btn--primary:focus-visible {
  background-color: var(--products-accent-light);
  color: var(--products-primary);
}
.page-products .btn--outline {
  background-color: transparent;
  color: var(--products-text-primary);
  border: 1px solid var(--products-border);
  text-decoration: none;
}
.page-products .btn--outline:hover,
.page-products .btn--outline:focus-visible {
  background-color: var(--products-accent);
  color: var(--products-primary);
  border-color: var(--products-accent);
}

/* ===== 响应式：平板及以上 ===== */
@media (min-width: 640px) {
  .page-products {
    padding: 0 2rem 4rem;
  }
  .products-hero {
    flex-direction: row;
    align-items: center;
    padding: 2rem 0 4rem;
  }
  .products-hero__title {
    font-size: 2.5rem;
  }
  .products-hero__visual {
    flex: 0 0 45%;
  }
  .products-features__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .products-download__grid {
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
  }
  .products-download__actions {
    align-items: flex-start;
  }
  .products-download__note {
    text-align: left;
  }
  .products-guide__steps {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
  }
  .products-guide__step {
    flex: 1 1 calc(33.33% - 1rem);
    min-width: 200px;
  }
  .products-guide__step-num {
    font-size: 1.6rem;
  }
  .products-faq-preview__list {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem 2rem;
  }
}

@media (min-width: 1024px) {
  .page-products {
    padding: 0 2.5rem 5rem;
  }
  .products-hero__title {
    font-size: 3rem;
  }
  .products-features__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
  }
  .products-feature-card {
    padding: 2rem 1.25rem;
  }
  .products-download__grid {
    gap: 3rem;
  }
  .products-download__qr {
    max-width: 240px;
  }
  .products-guide__step {
    padding: 1.5rem;
  }
}

/* ===== 针对减少动效偏好 ===== */
@media (prefers-reduced-motion: reduce) {
  .page-products *,
  .page-products *::before,
  .page-products *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    transform: none !important;
  }
}

/* ===== 聚焦环 ===== */
.page-products :focus-visible {
  outline: 2px solid var(--products-accent);
  outline-offset: 2px;
}