.page-download { color: #333333; background-color: #FFFFFF; }

/* Hero Nội dung chính - ảnh trên, chữ dưới, ưu tiên desktop trước */
.page-download__hero-section { display: flex; flex-direction: column; align-items: center; max-width: 1200px; margin: 0 auto; padding: 10px 16px 24px; }
.page-download__hero-image, .page-download__hero-content { width: 100%; }
.page-download__hero-img { display: block; width: 100%; max-width: 1200px; height: auto; aspect-ratio: 17/5; object-fit: cover; border-radius: 8px; }
.page-download__hero-content { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; margin-top: 16px; }
.page-download__hero-title { font-size: clamp(1.5rem, 4vw, 2.2rem); font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; color: #0477DB; margin: 0; max-width: 800px; }
.page-download__hero-desc { font-size: 1rem; line-height: 1.6; color: #333333; margin: 0; max-width: 700px; }
.page-download__hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 12px; }

/* Nút bấm chung */
.page-download__btn { display: inline-block; padding: 12px 24px; border-radius: 999px; font-weight: 700; font-size: 1rem; text-align: center; text-decoration: none; transition: transform 0.15s ease, box-shadow 0.15s ease; box-sizing: border-box; }
.page-download__btn--primary { background-color: #26A9E0; color: #FFFFFF; }
.page-download__btn--secondary { background-color: #EA7C07; color: #FFFFFF; }
.page-download__btn--small { background-color: #0477DB; color: #FFFFFF; padding: 8px 16px; font-size: 0.9rem; }
.page-download__btn:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,0.15); }
.page-download__btn:active { transform: translateY(0); box-shadow: none; }

/* Phần nền tảng */
.page-download__platform-section { background-color: #F0F8FF; padding: 40px 16px; }
.page-download__platform-inner { max-width: 1200px; margin: 0 auto; }
.page-download__platform-title { font-size: 2rem; font-weight: 700; color: #0477DB; text-align: center; margin: 0 0 8px; }
.page-download__platform-desc { text-align: center; max-width: 800px; margin: 0 auto 32px; line-height: 1.6; color: #333333; }
.page-download__platform-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.page-download__platform-card { background: #FFFFFF; border-radius: 8px; padding: 16px; box-shadow: 0 2px 8px rgba(0,0,0,0.08); display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px; box-sizing: border-box; }
.page-download__platform-image { width: 100%; max-width: 320px; height: auto; aspect-ratio: 2/1; object-fit: contain; display: block; }
.page-download__platform-card-title { font-size: 1.2rem; font-weight: 600; color: #0477DB; margin: 0; }
.page-download__platform-card-desc { font-size: 0.95rem; line-height: 1.5; color: #333333; margin: 0; flex-grow: 1; }

/* Phần Tính năng */
.page-download__feature-section { padding: 48px 16px; }
.page-download__feature-inner { max-width: 1200px; margin: 0 auto; }
.page-download__feature-title { font-size: 2rem; font-weight: 700; color: #0477DB; text-align: center; margin: 0 0 8px; }
.page-download__feature-desc { text-align: center; max-width: 800px; margin: 0 auto 32px; line-height: 1.6; color: #333333; }
.page-download__feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.page-download__feature-item { background: #F8FCFF; border: 1px solid #E0F2FE; border-radius: 8px; padding: 16px; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; box-sizing: border-box; }
.page-download__feature-image { width: 100%; max-width: 400px; height: auto; aspect-ratio: 2/1; object-fit: cover; border-radius: 8px; display: block; }
.page-download__feature-item-title { font-size: 1.2rem; font-weight: 600; color: #0477DB; margin: 0; }
.page-download__feature-item-desc { font-size: 0.95rem; line-height: 1.5; color: #333333; margin: 0; }

/* Phần Hướng dẫn */
.page-download__guide-section { background-color: #F0F8FF; padding: 48px 16px; }
.page-download__guide-inner { max-width: 1000px; margin: 0 auto; }
.page-download__guide-title { font-size: 2rem; font-weight: 700; color: #0477DB; text-align: center; margin: 0 0 8px; }
.page-download__guide-desc { text-align: center; max-width: 800px; margin: 0 auto 32px; line-height: 1.6; color: #333333; }
.page-download__guide-steps { display: flex; flex-direction: column; gap: 32px; }
.page-download__guide-step { background: #FFFFFF; border: 1px solid #E0F2FE; border-radius: 8px; padding: 16px; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; box-sizing: border-box; }
.page-download__guide-figure { margin: 0; width: 100%; }
.page-download__guide-image { width: 100%; max-width: 800px; height: auto; aspect-ratio: 2/1; object-fit: cover; border-radius: 8px; display: block; }
.page-download__guide-step-title { font-size: 1.1rem; font-weight: 700; color: #0477DB; margin: 0; }
.page-download__guide-step-desc { line-height: 1.6; color: #333333; margin: 0; }
.page-download__guide-cta { text-align: center; margin-top: 32px; }

/* Phần FAQ */
.page-download__faq-section { padding: 48px 16px; }
.page-download__faq-inner { max-width: 800px; margin: 0 auto; }
.page-download__faq-title { font-size: 2rem; font-weight: 700; color: #0477DB; text-align: center; margin: 0 0 24px; }
.page-download__faq-list { display: flex; flex-direction: column; gap: 12px; }
.page-download__faq-item { background: #F8FCFF; border: 1px solid #E0F2FE; border-radius: 8px; padding: 0; }
.page-download__faq-summary { list-style: none; cursor: pointer; padding: 16px; display: flex; justify-content: space-between; align-items: center; font-weight: 600; color: #0477DB; }
.page-download__faq-summary::-webkit-details-marker { display: none; }
.page-download__faq-toggle { font-size: 1.2rem; font-weight: 700; color: #0477DB; width: 24px; height: 24px; display: inline-flex; align-items: center; justify-content: center; }
.page-download__faq-answer { margin: 0; padding: 0 16px 16px; line-height: 1.6; color: #333333; }

/* Responsive: Tablet & Mobile */
@media (max-width: 1024px) {
  .page-download__platform-grid { grid-template-columns: 1fr; gap: 16px; }
  .page-download__platform-card { max-width: 400px; margin: 0 auto; }
  .page-download__feature-grid { grid-template-columns: 1fr; gap: 16px; }
  .page-download__feature-item { max-width: 500px; margin: 0 auto; }
}

@media (max-width: 768px) {
  .page-download__hero-section { padding: 0 12px 20px; }
  .page-download__hero-img { min- }
  .page-download__hero-actions { flex-direction: column; align-items: stretch; }
  .page-download__btn { max-width: 100%; box-sizing: border-box; white-space: normal; word-wrap: break-word; width: 100%; }
  .page-download__btn--primary, .page-download__btn--secondary { text-align: center; }
  .page-download__btn--small { display: block; width: auto; margin: 0 auto; }

  /* Nền tảng */
  .page-download__platform-section { padding: 24px 12px; }
  .page-download__platform-title { font-size: 1.5rem; }
  .page-download__platform-desc { font-size: 0.9rem; margin-bottom: 16px; }
  .page-download__platform-card { padding: 12px; }
  .page-download__platform-card-title { font-size: 1rem; }
  .page-download__platform-card-desc { font-size: 0.85rem; }

  /* Tính năng */
  .page-download__feature-section { padding: 24px 12px; }
  .page-download__feature-title { font-size: 1.5rem; }
  .page-download__feature-desc { font-size: 0.9rem; margin-bottom: 16px; }
  .page-download__feature-item { padding: 12px; }
  .page-download__feature-item-title { font-size: 1rem; }
  .page-download__feature-item-desc { font-size: 0.85rem; }

  /* Hướng dẫn */
  .page-download__guide-section { padding: 24px 12px; }
  .page-download__guide-title { font-size: 1.5rem; }
  .page-download__guide-desc { font-size: 0.9rem; margin-bottom: 16px; }
  .page-download__guide-step { padding: 12px; }
  .page-download__guide-step-title { font-size: 1rem; }
  .page-download__guide-step-desc { font-size: 0.85rem; }

  /* FAQ */
  .page-download__faq-section { padding: 24px 12px; }
  .page-download__faq-title { font-size: 1.5rem; }
  .page-download__faq-summary { font-size: 0.9rem; }
  .page-download__faq-answer { font-size: 0.85rem; }

  /* Toàn bộ ảnh không vượt quá khung nhìn */
  .page-download img { max-width: 100% !important; height: auto !important; }
  .page-download__hero-img { aspect-ratio: 2/1; }
}