.page-download {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #ffffff; /* Body background is #000, so text should be light */
  background-color: #000; /* Ensure main content area matches body background */
}

.page-download__hero-section {
  position: relative;
  text-align: center;
  padding: 60px 20px 0; /* Adjusted for hero image, padding-top handled by var */
  background-color: #B22222; /* Main brand color for hero background */
  color: #ffffff;
  padding-top: var(--header-offset, 120px);
  overflow: hidden;
}

.page-download__hero-container {
  max-width: 1200px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.page-download__hero-title {
  font-size: 48px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #FFD700; /* Auxiliary color for emphasis */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  line-height: 1.2;
}

.page-download__hero-description {
  font-size: 20px;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

.page-download__download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary {
  background-color: #FFD700; /* Auxiliary color */
  color: #B22222; /* Main brand color for text */
  border: 2px solid #FFD700;
}

.page-download__btn-primary:hover {
  background-color: #e6c200;
  border-color: #e6c200;
  transform: translateY(-3px);
}

.page-download__btn-secondary {
  background-color: transparent;
  color: #FFD700;
  border: 2px solid #FFD700;
}

.page-download__btn-secondary:hover {
  background-color: #FFD700;
  color: #B22222;
  transform: translateY(-3px);
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 1000px; /* Adjust max-width for the image */
  margin: 0 auto;
  position: relative;
  z-index: 1;
  transform: translateY(50px); /* Slightly overlap with next section */
}

.page-download__hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  object-fit: cover;
}

.page-download__section {
  padding: 80px 20px;
  text-align: center;
  position: relative;
  z-index: 3;
}

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

.page-download__section-title {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #FFD700; /* Auxiliary color */
}

.page-download__section-intro {
  font-size: 18px;
  margin-bottom: 50px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

.page-download__why-download-section {
  background-color: #0d0d0d; /* Slightly lighter dark background */
  color: #ffffff;
  padding-top: 130px; /* Offset for hero image overlap */
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__feature-card {
  background-color: rgba(255, 255, 255, 0.1); /* Semi-transparent white for dark background */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: left;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-download__feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-download__feature-card img {
  width: 100%;
  height: 250px; /* Fixed height for consistency */
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-download__card-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 15px;
  color: #FFD700;
}

.page-download__feature-card p {
  font-size: 16px;
  color: #e0e0e0;
}

.page-download__how-to-download-section {
  background-color: #B22222; /* Main brand color */
  color: #ffffff;
}

.page-download__download-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 40px;
  margin-top: 40px;
}

.page-download__download-step-card {
  background-color: rgba(0, 0, 0, 0.3); /* Darker background for contrast */
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-align: left;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.page-download__download-step-card img {
  width: 100%;
  height: 300px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 25px;
  display: block;
}

.page-download__download-step-card ol {
  list-style-type: decimal;
  padding-left: 20px;
  margin-bottom: 25px;
  color: #f0f0f0;
}

.page-download__download-step-card li {
  margin-bottom: 10px;
  font-size: 17px;
}

.page-download__system-requirements {
  margin-top: 60px;
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 10px;
  text-align: left;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-download__sub-title {
  font-size: 26px;
  font-weight: bold;
  margin-bottom: 20px;
  color: #FFD700;
}

.page-download__system-requirements ul {
  list-style-type: disc;
  padding-left: 25px;
  color: #f0f0f0;
}

.page-download__system-requirements li {
  margin-bottom: 8px;
  font-size: 17px;
}

.page-download__installation-guide-section {
  background-color: #0d0d0d;
  color: #ffffff;
}

.page-download__steps-list {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 40px;
}

.page-download__step-item {
  display: flex;
  align-items: flex-start;
  gap: 25px;
  text-align: left;
}

.page-download__step-number {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: #FFD700; /* Auxiliary color */
  color: #B22222; /* Main brand color for text */
  font-size: 28px;
  font-weight: bold;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-download__step-content {
  flex-grow: 1;
}

.page-download__step-title {
  font-size: 24px;
  font-weight: bold;
  margin-bottom: 10px;
  color: #FFD700;
}

.page-download__step-content p {
  font-size: 17px;
  color: #e0e0e0;
}

.page-download__app-features-section {
  background-color: #B22222;
  color: #ffffff;
}

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

.page-download__app-features-section .page-download__feature-card {
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.page-download__app-features-section .page-download__feature-card img {
  height: 280px;
}

.page-download__promotions-section {
  background-color: #0d0d0d;
  color: #ffffff;
}

.page-download__promo-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__promo-card {
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: left;
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-download__promo-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-download__promo-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-download__promo-card .page-download__card-title {
  color: #FFD700;
}

.page-download__promo-card p {
  color: #e0e0e0;
}

.page-download__cta-area {
  margin-top: 50px;
}

.page-download__faq-section {
  background-color: #B22222;
  color: #ffffff;
}

.page-download__faq-list {
  margin-top: 40px;
  text-align: left;
}

/* FAQ容器样式 */
.page-download__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* FAQ默认状态 - 答案隐藏 */
.page-download__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 20px;
  opacity: 0;
  color: #e0e0e0;
}

/* FAQ展开 trạng thái - 🚨 Sử dụng !important và max-height đủ lớn để đảm bảo có thể mở rộng */
.page-download__faq-item.active .page-download__faq-answer {
  max-height: 2000px !important; /* 🚨 Sử dụng !important để đảm bảo độ ưu tiên, giá trị đủ lớn để chứa bất kỳ nội dung nào */
  padding: 20px !important;
  opacity: 1;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 0 0 5px 5px;
}

/* Vấn đề phong cách */
.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
  color: #FFD700;
}

.page-download__faq-question:hover {
  background: rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.3);
}

.page-download__faq-question:active {
  background: rgba(0, 0, 0, 0.6);
}

/* Vấn đề tiêu đề phong cách */
.page-download__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none; /* Ngăn chặn thẻ h3 chặn sự kiện nhấp */
  color: #FFD700;
}

/* Chuyển đổi biểu tượng */
.page-download__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  line-height: 1;
  color: #FFD700;
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none; /* Ngăn chặn biểu tượng chặn sự kiện nhấp */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.page-download__faq-item.active .page-download__faq-toggle {
  color: #ffffff;
  transform: rotate(45deg); /* Rotate for 'x' effect */
}

/* Global responsive styles for images and buttons */
.page-download img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-download__download-buttons,
.page-download__btn-primary,
.page-download__btn-secondary,
.page-download a[class*="button"],
.page-download a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__download-buttons,
.page-download__button-group,
.page-download__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .page-download__hero-title {
    font-size: 42px;
  }

  .page-download__hero-description {
    font-size: 18px;
  }

  .page-download__section-title {
    font-size: 32px;
  }

  .page-download__section-intro,
  .page-download__feature-card p,
  .page-download__download-step-card li,
  .page-download__system-requirements li,
  .page-download__step-content p,
  .page-download__promo-card p {
    font-size: 16px;
  }

  .page-download__card-title,
  .page-download__step-title {
    font-size: 22px;
  }

  .page-download__sub-title {
    font-size: 24px;
  }

  .page-download__feature-card img,
  .page-download__download-step-card img {
    height: 220px;
  }
  .page-download__app-features-section .page-download__feature-card img {
    height: 250px;
  }
  .page-download__promo-card img {
    
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding: 40px 15px 0;
    padding-top: var(--header-offset, 120px) !important;
  }

  .page-download__hero-title {
    font-size: 32px;
    margin-bottom: 15px;
  }

  .page-download__hero-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-download__download-buttons {
    flex-direction: column;
    gap: 15px;
    margin-bottom: 30px;
    padding: 0 15px;
  }

  .page-download__btn-primary,
  .page-download__btn-secondary,
  .page-download a[class*="button"],
  .page-download a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
    font-size: 16px;
  }

  .page-download__download-buttons,
  .page-download__button-group,
  .page-download__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-download__hero-image-wrapper {
    transform: translateY(30px);
  }

  .page-download__section {
    padding: 50px 15px;
  }

  .page-download__why-download-section {
    padding-top: 80px; /* Adjusted for mobile overlap */
  }

  .page-download__section-title {
    font-size: 28px;
    margin-bottom: 15px;
  }

  .page-download__section-intro {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-download__features-grid,
  .page-download__download-steps-grid,
  .page-download__promo-cards-grid {
    grid-template-columns: 1fr;
    gap: 25px;
    margin-top: 25px;
  }

  .page-download__feature-card,
  .page-download__download-step-card,
  .page-download__promo-card {
    padding: 25px;
  }

  .page-download__feature-card img,
  .page-download__download-step-card img,
  .page-download__app-features-section .page-download__feature-card img,
  .page-download__promo-card img {
    height: 200px;
  }

  .page-download__card-title,
  .page-download__step-title {
    font-size: 20px;
  }

  .page-download__sub-title {
    font-size: 22px;
  }

  .page-download__step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 15px;
  }

  .page-download__step-content {
    padding: 0 10px;
  }

  /* FAQ Mobile */
  .page-download__faq-question {
    padding: 15px;
    flex-wrap: wrap;
  }

  .page-download__faq-question h3 {
    font-size: 16px;
    margin-bottom: 0;
    width: calc(100% - 40px);
  }

  .page-download__faq-toggle {
    margin-left: 10px;
    width: 28px;
    height: 28px;
    font-size: 24px;
  }

  .page-download__faq-answer {
    padding: 0 15px;
  }

  .page-download__faq-item.active .page-download__faq-answer {
    padding: 15px !important;
  }

  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Override specific element paddings to match section padding */
  .page-download__system-requirements {
    padding: 25px 15px;
  }

  .page-download__feature-card {
    padding: 25px 15px;
  }

  .page-download__download-step-card {
    padding: 25px 15px;
  }

  .page-download__promo-card {
    padding: 25px 15px;
  }
}

@media (max-width: 480px) {
  .page-download__hero-title {
    font-size: 28px;
  }

  .page-download__section-title {
    font-size: 24px;
  }

  .page-download__card-title,
  .page-download__step-title {
    font-size: 18px;
  }

  .page-download__sub-title {
    font-size: 20px;
  }

  .page-download__step-number {
    width: 40px;
    height: 40px;
    font-size: 22px;
  }
}