.page-index {
  color: #333333; /* Default text color for light body background */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-index__section {
  margin-bottom: 20px;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-index__section-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0;
}

.page-index__section-title.tieudevip {
  text-align: center;
  font-size: 2.2em;
  font-weight: bold;
  color: #017439;
  margin: 40px auto;
  padding: 10px 20px;
  border: 2px solid #017439;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 116, 57, 0.2);
  display: inline-block;
  max-width: 90%;
  text-transform: uppercase;
  line-height: 1.2;
}

.page-index__hero-carousel-section {
  padding-top: 10px; /* Small top padding, relying on body padding for header offset */
  margin-bottom: 30px;
  padding-left: 0;
  padding-right: 0;
}

.page-index__hero-slider {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.page-index__hero-slide {
  display: none;
  width: 100%;
  transition: opacity 0.5s ease-in-out;
}

.page-index__hero-slide.is-active {
  display: block;
  opacity: 1;
}

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

.page-index__hero-slider-prev,
.page-index__hero-slider-next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background-color: rgba(0, 0, 0, 0.5);
  color: #ffffff;
  border: none;
  padding: 10px 15px;
  cursor: pointer;
  z-index: 10;
  font-size: 1.5em;
  border-radius: 5px;
}

.page-index__hero-slider-prev {
  left: 10px;
}

.page-index__hero-slider-next {
  right: 10px;
}

.page-index__hero-slider-prev::before { content: '‹'; }
.page-index__hero-slider-next::before { content: '›'; }

.page-index__hero-slider-dots {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 5px;
}

.page-index__hero-slider-dot {
  width: 10px;
  height: 10px;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  cursor: pointer;
}

.page-index__hero-slider-dot.is-active {
  background-color: #ffffff;
}

.page-index__guide-section {
  margin-top: 30px;
}

.page-index__guide-box {
  max-width: 100%;
  margin: 0 auto;
  padding: 16px 20px 24px;
  background: #f5e6d3;
  border-radius: 4px;
  box-sizing: border-box;
}

.page-index__guide-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start; /* For PC staggered layout */
  justify-content: center;
  gap: 8px;
}

.page-index__guide-card {
  display: block;
  flex: 0 0 19%; /* Slightly less than 20% to account for gap */
  max-width: 19%;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__guide-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.page-index__guide-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 250 / 350;
  object-fit: contain;
  display: block;
  border-radius: 4px;
}

/* PC staggered layout */
.page-index__guide-card--pos-1,
.page-index__guide-card--pos-5 { padding-top: 50px; }
.page-index__guide-card--pos-2,
.page-index__guide-card--pos-4 { padding-top: 25px; }
.page-index__guide-card--pos-3 { padding-top: 0; }

.page-index__home-content-section {
  margin-top: 40px;
  margin-bottom: 40px;
}

.page-index__home-content-row {
  display: flex;
  justify-content: center;
}

.page-index__home-content-box {
  max-width: 91%;
  width: 100%;
  margin: 0 auto;
  padding: 10px 16px;
  border: 5px solid #017439;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(1, 116, 57, 0.5);
  height: 700px;
  text-align: left;
  box-sizing: border-box;
  background-color: #ffffff;
  color: #333333;
}

.page-index__home-content-inner {
  height: 100%;
  overflow-y: auto;
  overflow-x: hidden;
  padding-right: 8px; /* For scrollbar */
}

.page-index__home-content-inner h1 {
  font-size: 2.5em;
  font-weight: bold;
  color: #017439;
  margin-bottom: 20px;
  line-height: 1.2;
  max-width: 100%;
}

.page-index__home-content-inner h2 {
  font-size: 1.8em;
  color: #017439;
  margin-top: 30px;
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-index__home-content-inner h3 {
  font-size: 1.4em;
  color: #017439;
  margin-top: 25px;
  margin-bottom: 10px;
  line-height: 1.4;
}

.page-index__home-content-inner p {
  margin-bottom: 15px;
}

.page-index__home-content-inner ol,
.page-index__home-content-inner ul {
  margin-left: 20px;
  margin-bottom: 15px;
}

.page-index__home-content-inner li {
  margin-bottom: 8px;
}

.page-index__wp-caption {
  margin: 20px 0;
  text-align: center;
}

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-index__wp-caption figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #666666;
  margin-top: 10px;
}

.page-index__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-index__btn-primary {
  display: inline-block;
  background-color: #017439;
  color: #ffffff;
  padding: 12px 25px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: none;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__btn-primary:hover {
  background-color: #005f2e;
  transform: translateY(-2px);
}

.page-index__blog-section {
  margin-top: 50px;
  margin-bottom: 50px;
}

.page-index__blog-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 30px;
}

.page-index__blog-card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index__blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.page-index__blog-card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.page-index__blog-media {
  position: relative;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
}

.page-index__blog-media img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}

.page-index__blog-date {
  position: absolute;
  top: 10px;
  right: 10px;
  background-color: #017439;
  color: #ffffff;
  padding: 5px 8px;
  border-radius: 5px;
  font-size: 0.8em;
  font-weight: bold;
  text-align: center;
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.page-index__blog-date span:first-child { font-size: 1.2em; }

.page-index__blog-title {
  font-size: 1.2em;
  font-weight: bold;
  color: #333333;
  margin: 15px;
  line-height: 1.4;
}

.page-index__blog-excerpt {
  font-size: 0.9em;
  color: #666666;
  margin: 0 15px 15px;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.page-index__blog-view-all-wrapper {
  text-align: center;
  margin-top: 40px;
}

.page-index__app-download-section {
  background-color: #f0f8f0;
  padding: 50px 15px;
  text-align: center;
}

.page-index__app-download-box {
  max-width: 800px;
  margin: 0 auto;
}

.page-index__app-download-title {
  font-size: 2.2em;
  color: #017439;
  margin-bottom: 20px;
}

.page-index__app-download-text p {
  font-size: 1.1em;
  color: #555555;
  margin-bottom: 30px;
}

.page-index__app-download-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-index__btn-download {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.1em;
  padding: 15px 30px;
}

/* Icon styles (placeholder for actual icon fonts/SVGs) */
.page-index__btn-download .icon-apple::before { content: ''; /* Example */ }
.page-index__btn-download .icon-android::before { content: '▶'; /* Example */ }

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-index__section-title.tieudevip {
    font-size: 1.8em;
    padding: 8px 15px;
  }

  .page-index__guide-card {
    flex: 0 0 18%;
    max-width: 18%;
  }

  .page-index__blog-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
  }
}

@media (max-width: 768px) {
  .page-index {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-index__section {
    padding: 0 10px;
  }

  .page-index__section-title.tieudevip {
    font-size: 1.5em !important;
    margin: 30px auto !important;
    padding: 10px 15px !important;
    max-width: 95% !important;
  }

  /* Hero Carousel */
  .page-index__hero-carousel-section {
    padding-top: 10px !important;
    margin-bottom: 20px !important;
  }
  .page-index__hero-slider-prev,
  .page-index__hero-slider-next {
    padding: 8px 12px !important;
    font-size: 1.2em !important;
  }

  /* Guide Section */
  .page-index__guide-box {
    padding: 15px !important;
  }
  .page-index__guide-grid {
    display: grid !important;
    grid-template-columns: repeat(6, 1fr) !important; /* Total 6 columns for 2-3 split */
    gap: 8px !important;
    justify-content: unset !important;
  }
  .page-index__guide-card {
    flex: none !important;
    max-width: none !important;
    padding-top: 0 !important; /* Reset staggered padding */
  }
  .page-index__guide-card--pos-1,
  .page-index__guide-card--pos-2 { grid-column: span 3 !important; }
  .page-index__guide-card--pos-3,
  .page-index__guide-card--pos-4,
  .page-index__guide-card--pos-5 { grid-column: span 2 !important; }

  /* Home Content Section */
  .page-index__home-content-box {
    max-width: 100% !important;
    height: auto !important;
    padding: 20px 16px !important;
    border-width: 3px !important;
  }
  .page-index__home-content-inner {
    height: auto !important;
    overflow: visible !important;
    padding-right: 0 !important;
  }
  .page-index__home-content-inner h1 {
    font-size: 1.8em !important;
  }
  .page-index__home-content-inner h2 {
    font-size: 1.5em !important;
  }
  .page-index__home-content-inner h3 {
    font-size: 1.2em !important;
  }

  /* Blog Section */
  .page-index__blog-grid {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 10px !important;
  }
  .page-index__blog-card {
    margin-bottom: 10px;
  }
  .page-index__blog-title {
    font-size: 1.1em !important;
    margin: 10px !important;
  }
  .page-index__blog-excerpt {
    margin: 0 10px 10px !important;
  }

  /* App Download Section */
  .page-index__app-download-title {
    font-size: 1.8em !important;
  }
  .page-index__app-download-buttons {
    flex-direction: column !important;
    gap: 10px !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index__btn-download {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
  }

  /* General Images */
  .page-index img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  /* General Buttons */
  .page-index__btn-primary,
  .page-index a[class*="button"],
  .page-index 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-left: 15px;
    padding-right: 15px;
  }

  .page-index__cta-buttons,
  .page-index__button-group,
  .page-index__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-index__cta-buttons {
    display: flex;
    flex-direction: column !important; /* For vertical stacking of buttons */
  }
}