.page-download__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 10px 0 60px;
  background: #B71C1C; /* Custom background color */
  color: #FFF5E1; /* Custom text color for dark background */
  position: relative;
  overflow: hidden;
}

.page-download__hero-image {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.page-download__hero-content {
  max-width: 900px;
  padding: 0 20px;
}

.page-download__main-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem); /* Using clamp for responsive font size */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #FFF5E1;
}

.page-download__hero-description {
  font-size: 1.15rem;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #FFF5E1;
}

.page-download__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 20px;
  width: 100%;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  font-size: 1.1rem;
  font-weight: 600;
  color: #333333; /* Dark text for light button background */
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Custom button gradient */
  border: none;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 8px 15px rgba(0, 0, 0, 0.2);
  cursor: pointer;
  flex-grow: 1;
  max-width: 280px;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 20px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}

.page-download__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-download__section-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: #C91F17; /* Main brand color */
}

.page-download__section-subtitle {
  font-size: 1.1rem;
  text-align: center;
  margin-bottom: 50px;
  line-height: 1.6;
  color: #333333;
}

.page-download__section-title--light {
  color: #FFF5E1; /* Light text for dark background */
}

.page-download__section-subtitle--light {
  color: #FFF5E1;
}

.page-download__features-section {
  padding: 80px 0;
  background: #ffffff;
  color: #333333;
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-download__feature-card {
  background: #ffffff;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e0e0e0;
}

.page-download__feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.page-download__feature-card img {
  width: 100%;
  max-width: 200px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 10px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #C91F17;
}

.page-download__card-description {
  font-size: 1rem;
  line-height: 1.6;
  color: #555555;
}

.page-download__guide-section {
  padding: 80px 0;
  background: #B71C1C; /* Custom background color */
  color: #FFF5E1; /* Custom text color */
}

.page-download__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__step-item {
  background: rgba(255, 255, 255, 0.1); /* Semi-transparent white for cards on dark background */
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-download__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #FFD86A; /* Gold color for numbers */
  color: #333333; /* Dark text on gold */
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-download__step-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #FFF5E1;
}

.page-download__step-description {
  font-size: 1rem;
  line-height: 1.6;
  color: #F0F0F0;
}

.page-download__qr-codes {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 60px;
  flex-wrap: wrap;
}

.page-download__qr-item {
  text-align: center;
  background: rgba(255, 255, 255, 0.1);
  padding: 20px;
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-download__qr-item img {
  width: 200px;
  height: 200px;
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 15px;
  border-radius: 10px;
}

.page-download__qr-item p {
  font-size: 1.1rem;
  color: #FFF5E1;
}

.page-download__benefits-section {
  padding: 80px 0;
  background: #ffffff;
  color: #333333;
}

.page-download__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-download__benefit-card {
  background: #D32F2F; /* Custom card background color */
  color: #FFF5E1; /* Custom text color */
  border-radius: 15px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.page-download__benefit-card:hover {
  transform: translateY(-10px);
}

.page-download__benefit-card .page-download__card-title {
  color: #FFF5E1;
  margin-bottom: 10px;
}

.page-download__benefit-card .page-download__card-description {
  color: #F0F0F0;
}

.page-download__cta-bottom {
  text-align: center;
  margin-top: 60px;
}

.page-download__seo-text {
  padding: 60px 0 80px;
  background: #f8f8f8;
  color: #333333;
}

.page-download__article-body {
  max-width: 900px;
  line-height: 1.8;
  font-size: 1.05rem;
  text-align: left;
}

.page-download__article-body h2,
.page-download__article-body h3 {
  color: #C91F17;
  margin-top: 40px;
  margin-bottom: 20px;
  font-weight: 700;
}

.page-download__article-body h3 {
  font-size: 1.6rem;
}

.page-download__article-body p {
  margin-bottom: 15px;
}

.page-download__article-body ul {
  list-style-type: disc;
  margin-left: 25px;
  margin-bottom: 15px;
}

.page-download__article-body li {
  margin-bottom: 8px;
  line-height: 1.6;
}

.page-download__faq-section {
  padding: 80px 0;
  background: #ffffff;
  color: #333333;
}

.page-download__faq-list {
  max-width: 800px;
  margin: 50px auto 0;
}

details.page-download__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
}

details.page-download__faq-item summary.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

details.page-download__faq-item summary.page-download__faq-question::-webkit-details-marker {
  display: none;
}

details.page-download__faq-item summary.page-download__faq-question:hover {
  background: #f5f5f5;
}

.page-download__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}

.page-download__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}

details.page-download__faq-item .page-download__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #555555;
}

/* --- Responsive Styles --- */

@media (max-width: 1024px) {
  .page-download__hero-description {
    font-size: 1.05rem;
  }
  .page-download__main-title {
    font-size: clamp(2.2rem, 4vw, 3rem);
  }
  .page-download__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  }
  .page-download__features-grid,
  .page-download__guide-steps,
  .page-download__benefits-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  }
  .page-download__cta-buttons {
    flex-direction: column;
    align-items: center;
  }
  .page-download__btn-primary {
    max-width: 300px;
    width: 100%;
  }
  .page-download__qr-codes {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-download__hero-section {
    padding: 10px 0 40px;
  }
  .page-download__hero-image img {
    object-fit: contain !important; /* 禁止 cover 裁切两侧 */
    aspect-ratio: unset !important;
    border-radius: 0;
  }
  .page-download__hero-content {
    padding: 0 15px;
  }
  .page-download__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: 15px;
  }
  .page-download__hero-description {
    font-size: 1rem;
    margin-bottom: 30px;
  }
  .page-download__cta-buttons {
    flex-direction: column !important;
    gap: 15px;
    max-width: 100% !important;
    width: 100% !important;
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box !important;
  }
  .page-download__btn-primary {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

  /* 通用图片与容器 */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-download__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }
  .page-download__section-subtitle {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }
  .page-download__features-section,
  .page-download__guide-section,
  .page-download__benefits-section,
  .page-download__seo-text,
  .page-download__faq-section {
    padding: 40px 0;
  }

  /* 产品展示图区域 (features-grid acts as product display) */
  .page-download__features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-download__feature-card {
    padding: 20px;
  }
  .page-download__feature-card img {
    
  }

  /* Hướng Dẫn Tải Ứng Dụng (guide-steps) */
  .page-download__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-download__step-item {
    padding: 20px;
  }
  .page-download__step-number {
    width: 50px;
    height: 50px;
    font-size: 1.8rem;
  }
  .page-download__step-title {
    font-size: 1.2rem;
  }
  .page-download__qr-codes {
    flex-direction: column;
    gap: 20px;
  }
  .page-download__qr-item img {
    
    
  }

  /* Lợi Ích Khi Sử Dụng (benefits-grid) */
  .page-download__benefits-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-download__benefit-card {
    padding: 20px;
  }

  /* SEO Text (article-body) */
  .page-download__article-body {
    font-size: 0.95rem;
    padding: 0 15px; /* Ensure padding for mobile content */
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-download__article-body h2,
  .page-download__article-body h3 {
    font-size: clamp(1.4rem, 5vw, 1.8rem);
    margin-top: 30px;
    margin-bottom: 15px;
  }
  .page-download__article-body ul {
    margin-left: 20px;
  }
  .page-download__article-body li {
    margin-bottom: 5px;
  }

  /* FAQ */
  details.page-download__faq-item summary.page-download__faq-question {
    padding: 15px;
  }
  .page-download__faq-qtext {
    font-size: 15px;
  }
  details.page-download__faq-item .page-download__faq-answer {
    padding: 0 15px 15px;
  }
  .page-download__faq-toggle {
    font-size: 20px;
    width: 24px;
    height: 24px;
  }

  /* 确保所有包含按钮的容器在移动端都适配 */
  .page-download__cta-bottom {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
}