:root {
  --primary-color: #11A84E; /* 主色调 */
  --secondary-color: #22C768; /* 辅助色 */
  --card-bg: #11271B; /* Card BG */
  --bg-color: #08160F; /* 背景 */
  --text-main: #F2FFF6; /* Text Main */
  --text-secondary: #A7D9B8; /* Text Secondary */
  --border-color: #2E7A4E; /* 边框 */
  --glow-color: #57E38D; /* Glow */
  --gold-color: #F2C14E; /* Gold */
  --divider-color: #1E3A2A; /* Divider */
  --deep-green: #0A4B2C; /* Deep Green */
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); /* 按钮 */

  /* Màu chữ an toàn cho nền sáng/tối */
  --text-on-light: #333333;
  --text-on-dark: #ffffff;
}

.page-blog {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* Mặc định cho toàn bộ trang nếu nền là dark */
  background-color: var(--bg-color); /* Nền toàn trang */
}

/* --- Hero Section --- */
.page-blog__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column; /* Đảm bảo hình ảnh trên, văn bản dưới */
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  background-color: var(--bg-color);
  overflow: hidden; /* Prevent content overflow */
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-width: 100%; /* Ensure it doesn't overflow */
  margin-bottom: 30px; /* Space between image and content */
  box-sizing: border-box;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__hero-content {
  text-align: center;
  max-width: 900px;
  width: 100%;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-blog__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em); /* H1 font size with clamp */
  color: var(--gold-color);
  margin-bottom: 15px;
  font-weight: 700;
  line-height: 1.2;
}

.page-blog__hero-description {
  font-size: 1.2em;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Buttons --- */
.page-blog__cta-buttons {
  display: flex;
  flex-wrap: wrap; /* Allow buttons to wrap on smaller screens */
  gap: 20px;
  justify-content: center;
  margin-top: 30px;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* Ensure button doesn't overflow */
  white-space: normal; /* Allow text to wrap */
  word-wrap: break-word; /* Allow text to break words */
  text-align: center;
}

.page-blog__btn-primary {
  background: var(--button-gradient);
  color: var(--text-on-dark); /* White text on dark button */
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-blog__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__btn-secondary {
  background: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-blog__btn-secondary:hover {
  background: rgba(17, 168, 78, 0.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

/* --- General Section Styles --- */
.page-blog__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-blog__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.8em);
  color: var(--gold-color);
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.page-blog__section-description {
  font-size: 1.1em;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* --- Recent Posts Section --- */
.page-blog__recent-posts {
  padding: 80px 0;
  background-color: var(--card-bg); /* Use specified card background */
  color: var(--text-main); /* Text main for dark background */
}

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

.page-blog__post-card {
  background-color: var(--bg-color); /* Slightly darker background for cards */
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-blog__post-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-blog__card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog__post-image {
  width: 100%;
  height: 220px; /* Fixed height for consistency, object-fit will handle aspect */
  object-fit: cover;
  display: block;
  min-height: 200px; /* Ensure minimum size */
}

.page-blog__card-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-blog__post-title {
  font-size: 1.3em;
  color: var(--text-main);
  margin-bottom: 10px;
  font-weight: bold;
  line-height: 1.4;
}

.page-blog__post-title:hover {
  color: var(--primary-color);
}

.page-blog__post-excerpt {
  font-size: 0.95em;
  color: var(--text-secondary);
  margin-bottom: 15px;
  flex-grow: 1; /* Allow excerpt to take available space */
}

.page-blog__post-date {
  font-size: 0.85em;
  color: var(--primary-color);
  display: block;
  margin-top: auto; /* Push date to bottom */
}

.page-blog__view-all {
  text-align: center;
  margin-top: 50px;
}

/* --- Featured Content Section --- */
.page-blog__featured-content {
  padding: 80px 0;
  background-color: var(--bg-color);
}

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

.page-blog__text-block {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  color: var(--text-main);
  display: flex;
  flex-direction: column;
}

.page-blog__sub-title {
  font-size: 1.6em;
  color: var(--gold-color);
  margin-bottom: 20px;
  font-weight: 600;
  line-height: 1.3;
}

.page-blog__content-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin-bottom: 25px;
  object-fit: cover;
  min-height: 200px; /* Ensure minimum size */
}

.page-blog__text-block p {
  font-size: 1em;
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.page-blog__text-block .page-blog__btn-secondary,
.page-blog__text-block .page-blog__btn-primary {
  margin-top: auto; /* Push button to bottom */
  align-self: flex-start; /* Align button to start */
  padding: 10px 20px;
  font-size: 0.95em;
}

/* --- FAQ Section --- */
.page-blog__faq-section {
  padding: 80px 0;
  background-color: var(--bg-color); /* Use custom dark background */
  color: var(--text-main); /* Ensure text is light on dark custom bg */
}

.page-blog__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.15em;
  color: var(--text-main);
  background-color: var(--deep-green); /* Slightly different background for question */
  transition: background-color 0.3s ease;
}

.page-blog__faq-question:hover {
  background-color: var(--primary-color);
}

.page-blog__faq-item[open] .page-blog__faq-question {
  background-color: var(--primary-color);
}

.page-blog__faq-qtext {
  flex-grow: 1;
}

.page-blog__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--gold-color);
}

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

.page-blog__faq-answer {
  padding: 20px 25px;
  font-size: 1em;
  color: var(--text-secondary);
  border-top: 1px solid var(--divider-color);
  background-color: var(--card-bg);
}

/* --- CTA Bottom Section --- */
.page-blog__cta-bottom {
  padding: 80px 0;
  background-color: var(--primary-color); /* Use primary color for strong CTA */
  color: var(--text-on-dark);
  text-align: center;
}

.page-blog__cta-bottom .page-blog__section-title {
  color: var(--text-on-dark); /* White text on primary color background */
}

.page-blog__cta-bottom .page-blog__section-description {
  color: var(--text-on-dark);
}

/* --- Color Contrast Classes (as per requirement) --- */
.page-blog__dark-section {
  background: var(--bg-color); /* Default dark background */
  color: var(--text-main); /* Light text */
}

.page-blog__light-bg {
  background: #ffffff; /* Example light background if needed, but custom is dark */
  color: var(--text-on-light); /* Dark text */
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .page-blog__hero-section {
    padding: 40px 15px;
    padding-top: 10px;
  }

  .page-blog__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }

  .page-blog__hero-description {
    font-size: 1.1em;
  }

  .page-blog__section-title {
    font-size: clamp(1.6em, 4vw, 2.5em);
  }

  .page-blog__recent-posts,
  .page-blog__featured-content,
  .page-blog__faq-section,
  .page-blog__cta-bottom {
    padding: 60px 0;
  }
}

@media (max-width: 768px) {
  .page-blog__hero-section {
    padding: 30px 15px;
    padding-top: 10px !important; /* Ensure small top padding */
  }

  .page-blog__hero-image-wrapper {
    margin-bottom: 20px;
  }

  .page-blog__main-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
  }

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

  .page-blog__cta-buttons {
    flex-direction: column; /* Stack buttons vertically on mobile */
    gap: 15px;
  }

  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    text-align: center !important;
    margin: 0 auto; /* Center buttons */
  }

  .page-blog__container {
    padding: 0 15px; /* Add horizontal padding for content */
  }

  .page-blog__section-title {
    font-size: clamp(1.5em, 5vw, 2em);
  }

  .page-blog__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-blog__post-grid {
    grid-template-columns: 1fr; /* Single column on mobile */
    gap: 20px;
  }

  .page-blog__post-image {
    min-height: 200px !important; /* Enforce min height for images */
    height: auto !important;
  }

  .page-blog__post-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-blog__text-block {
    padding: 25px;
  }

  .page-blog__sub-title {
    font-size: 1.4em;
  }

  .page-blog__content-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-height: 200px !important; /* Enforce min height for images */
  }

  .page-blog__faq-question {
    font-size: 1em;
    padding: 15px 20px;
  }

  .page-blog__faq-answer {
    padding: 15px 20px;
  }

  /* Mobile image responsiveness (global for .page-blog img) */
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important; /* Ensure width is 100% */
    height: auto !important;
    display: block !important;
  }

  /* Mobile video responsiveness (if any, though not in this HTML) */
  .page-blog video,
  .page-blog__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-blog__video-section,
  .page-blog__video-container,
  .page-blog__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  /* All containers with images/buttons/videos must be 100% width on mobile */
  .page-blog__section,
  .page-blog__card,
  .page-blog__container,
  .page-blog__hero-section,
  .page-blog__recent-posts,
  .page-blog__featured-content,
  .page-blog__faq-section,
  .page-blog__cta-bottom,
  .page-blog__post-card,
  .page-blog__text-block,
  .page-blog__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}

/* Ensure content area images are at least 200px wide */
.page-blog__content-area img,
.page-blog__text-block img,
.page-blog__post-image {
  min-width: 200px;
  min-height: 200px;
}