.page-index {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #F5F7FA; /* Background color for the page */
}

.page-index__section {
  padding: 40px 0;
  margin-bottom: 20px;
}

.page-index__section-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-index__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 40px;
  color: #333333;
}

.page-index__hero-carousel-section {
  padding-top: 10px; /* Small top padding, assuming body handles header offset */
  margin-bottom: 0;
  background-color: #F5F7FA;
}

.page-index__hero-slider {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-index__hero-slide {
  display: none;
  width: 100%;
}

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

.page-index__hero-slide img {
  width: 100%;
  height: auto;
  display: block;
  aspect-ratio: 1020 / 351;
  object-fit: cover;
}

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

.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: 8px;
}

.page-index__hero-slider-dots button {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: none;
  cursor: pointer;
  padding: 0;
}

.page-index__hero-slider-dots button.is-active {
  background: #ffffff;
}

.page-index__guide-section {
  padding: 60px 0;
  background-color: #F5F7FA;
}

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

.page-index__guide-box .tieudevip {
  font-size: 2em;
  font-weight: bold;
  color: #3477c9;
  margin-bottom: 30px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
  position: relative;
  display: inline-block;
  padding: 5px 20px;
}

.page-index__guide-box .tieudevip::before,
.page-index__guide-box .tieudevip::after {
  content: '';
  position: absolute;
  height: 2px;
  background: linear-gradient(to right, transparent, #3477c9, transparent);
  width: 40%;
  top: 50%;
  transform: translateY(-50%);
}

.page-index__guide-box .tieudevip::before { left: 0; }
.page-index__guide-box .tieudevip::after { right: 0; }

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

.page-index__guide-card {
  display: block;
  flex: 0 0 19%; /* Adjusted to fit 5 cards with gap */
  max-width: 19%;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border-radius: 8px;
  overflow: hidden;
}

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

/* 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 {
  padding: 60px 0;
  background-color: #F5F7FA;
}

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

.page-index__home-content-box {
  max-width: 91%; /* Approx 700px width for content */
  width: 100%;
  margin: 0 auto;
  padding: 10px 16px;
  border: 5px solid #3477c9;
  border-radius: 15px;
  box-shadow: 0 0 20px rgba(52, 115, 201, 0.5);
  height: 700px;
  text-align: left;
  box-sizing: border-box;
  background-color: #FFFFFF; /* Card BG */
  color: #333333; /* Text Main */
}

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

.page-index__home-content-inner::-webkit-scrollbar {
  width: 8px;
}

.page-index__home-content-inner::-webkit-scrollbar-thumb {
  background-color: #E53935; /* Scrollbar thumb color */
  border-radius: 4px;
}

.page-index__home-content-inner::-webkit-scrollbar-track {
  background-color: #f1f1f1; /* Scrollbar track color */
}

.page-index__home-content-title {
  font-size: 2.2em;
  font-weight: bold;
  margin-bottom: 20px;
  color: #E53935; /* Using main brand color for H1 */
  text-align: center;
}

.page-index__home-content-box h2 {
  font-size: 1.8em;
  color: #E53935;
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-index__home-content-box h3 {
  font-size: 1.4em;
  color: #FF5A4F;
  margin-top: 25px;
  margin-bottom: 10px;
}

.page-index__home-content-box p {
  margin-bottom: 15px;
  color: #333333;
}

.page-index__home-content-box ul,
.page-index__home-content-box ol {
  margin-bottom: 15px;
  padding-left: 25px;
  color: #333333;
}

.page-index__home-content-box li {
  margin-bottom: 5px;
}

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

.page-index__wp-caption img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.page-index__home-content-box a {
  color: #E53935;
  text-decoration: underline;
}

.page-index__home-content-box a:hover {
  color: #FF5A4F;
}

.page-index__faq-question {
  font-size: 1.2em;
  font-weight: bold;
  color: #E53935;
  margin-top: 20px;
  margin-bottom: 10px;
  cursor: pointer;
  position: relative;
  padding-right: 30px;
}

.page-index__faq-question::after {
  content: '+';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.5em;
  line-height: 1;
}

/* No JS accordion for homepage, so no active state for FAQ */

.page-index__blog-section {
  padding: 60px 0;
  background-color: #F5F7FA;
}

.page-index__blog-section .tieudevip {
  font-size: 2em;
  font-weight: bold;
  color: #3477c9;
  margin-bottom: 30px;
  text-shadow: 0 1px 2px rgba(0,0,0,0.1);
  position: relative;
  display: inline-block;
  padding: 5px 20px;
  text-align: center;
  width: 100%;
}

.page-index__blog-section .tieudevip::before,
.page-index__blog-section .tieudevip::after {
  content: '';
  position: absolute;
  height: 2px;
  background: linear-gradient(to right, transparent, #3477c9, transparent);
  width: 40%;
  top: 50%;
  transform: translateY(-50%);
}

.page-index__blog-section .tieudevip::before { left: 0; }
.page-index__blog-section .tieudevip::after { right: 0; }

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

.page-index__blog-card {
  background-color: #FFFFFF; /* Card BG */
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
}

.page-index__blog-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

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

.page-index__blog-media {
  position: relative;
  overflow: hidden;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
}

.page-index__blog-media img {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  display: block;
  border-top-left-radius: 15px;
  border-top-right-radius: 15px;
}

.page-index__blog-date {
  position: absolute;
  top: 10px;
  right: 10px;
  background: #E53935;
  color: #ffffff;
  padding: 5px 10px;
  border-radius: 5px;
  font-size: 0.8em;
  font-weight: bold;
  text-align: center;
  line-height: 1.2;
}

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

.page-index__blog-title {
  font-size: 1.2em;
  font-weight: bold;
  color: #333333;
  padding: 15px;
  margin: 0;
  min-height: 60px; /* Ensure consistent title height */
}

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

.page-index__view-all-posts {
  text-align: center;
  margin-top: 40px;
}

.page-index__btn-primary {
  display: inline-block;
  padding: 12px 25px;
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-weight: bold;
  transition: background 0.3s ease, transform 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index__btn-primary:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.page-index__app-download-section {
  padding: 60px 0;
  background-color: #F5F7FA;
  text-align: center;
}

.page-index__app-download-box {
  background-color: #FFFFFF;
  border-radius: 15px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 40px 20px;
  max-width: 800px;
  margin: 0 auto;
}

.page-index__app-title {
  font-size: 2em;
  color: #E53935;
  margin-bottom: 15px;
}

.page-index__app-description {
  font-size: 1.1em;
  color: #333333;
  margin-bottom: 30px;
}

.page-index__app-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.page-index__btn-app-download {
  min-width: 180px;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-index__guide-card {
    flex: 0 0 25%;
    max-width: 25%;
  }
  .page-index__blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .page-index__section {
    padding: 30px 0;
  }

  .page-index__section-title {
    font-size: 2em;
    margin-bottom: 30px;
  }

  .page-index__hero-carousel-section {
    padding-top: 10px !important;
  }

  .page-index__hero-slider-prev,
  .page-index__hero-slider-next {
    padding: 8px 12px;
    font-size: 1.2em;
  }

  .page-index__hero-slider-dots {
    bottom: 5px;
    gap: 5px;
  }

  .page-index__hero-slider-dots button {
    width: 8px;
    height: 8px;
  }

  .page-index__guide-section {
    padding: 40px 0;
  }

  .page-index__guide-box .tieudevip {
    font-size: 1.8em;
    margin-bottom: 20px;
  }
  .page-index__guide-box .tieudevip::before,
  .page-index__guide-box .tieudevip::after {
    width: 25%;
  }

  .page-index__guide-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 8px;
  }

  .page-index__guide-card {
    flex: none;
    max-width: none;
    padding-top: 0 !important; /* Reset staggered padding */
  }

  .page-index__guide-card--pos-1,
  .page-index__guide-card--pos-2 { grid-column: span 3; }
  .page-index__guide-card--pos-3,
  .page-index__guide-card--pos-4,
  .page-index__guide-card--pos-5 { grid-column: span 2; }

  .page-index__guide-card img {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 250 / 350;
    object-fit: contain;
  }

  .page-index__home-content-section {
    padding: 40px 0;
  }

  .page-index__home-content-box {
    max-width: 100%;
    height: auto; /* Allow content to expand */
    padding: 20px 15px;
  }

  .page-index__home-content-inner {
    height: auto; /* Allow content to expand */
    overflow-y: visible; /* Remove scrollbar */
    padding-right: 0;
  }

  .page-index__home-content-title {
    font-size: 1.8em;
  }

  .page-index__home-content-box h2 {
    font-size: 1.5em;
  }

  .page-index__home-content-box h3 {
    font-size: 1.2em;
  }

  .page-index__blog-section {
    padding: 40px 0;
  }

  .page-index__blog-section .tieudevip {
    font-size: 1.8em;
    margin-bottom: 20px;
  }

  .page-index__blog-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .page-index__blog-title {
    font-size: 1.1em;
    min-height: auto;
  }

  .page-index__app-download-section {
    padding: 40px 0;
  }

  .page-index__app-title {
    font-size: 1.8em;
  }

  .page-index__app-description {
    font-size: 1em;
  }

  .page-index__app-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-index__btn-primary,
  .page-index__btn-app-download,
  .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__section-content,
  .page-index__home-content-box,
  .page-index__app-download-box {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

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

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

@media (max-width: 480px) {
  .page-index__blog-grid {
    grid-template-columns: 1fr;
  }
}