:root {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg-color: #11271B;
  --body-bg-color: #08160F;
  --text-main-color: #F2FFF6;
  --text-secondary-color: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green-color: #0A4B2C;
}

/* body đã padding-top: var(--header-offset)；trang này cấm viết lại biến đó */
.page-faq {
  background-color: var(--body-bg-color);
  color: var(--text-main-color);
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
}

.page-faq__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px; /* body đã padding-top, đây chỉ dùng padding nhỏ */
  text-align: center;
  overflow: hidden;
}

.page-faq__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  box-sizing: border-box;
  margin-bottom: 30px;
}

.page-faq__hero-image {
  width: 100%;
  height: auto;
  display: block;
  max-width: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.page-faq__hero-content {
  max-width: 900px;
  padding: 0 20px;
  z-index: 1;
}

.page-faq__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--gold-color);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-faq__hero-description {
  font-size: 1.15em;
  color: var(--text-secondary-color);
  margin-bottom: 30px;
}

.page-faq__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.page-faq__btn-primary,
.page-faq__btn-secondary {
  padding: 15px 30px;
  border-radius: 50px;
  font-size: 1.1em;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-faq__btn-primary {
  background: var(--button-gradient);
  color: var(--text-main-color);
  border: none;
}

.page-faq__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(87, 227, 141, 0.4);
}

.page-faq__btn-secondary {
  background: transparent;
  color: var(--glow-color);
  border: 2px solid var(--glow-color);
}

.page-faq__btn-secondary:hover {
  background: var(--glow-color);
  color: var(--body-bg-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(87, 227, 141, 0.4);
}

.page-faq__content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
}

.page-faq__section-title {
  font-size: 2.5em;
  color: var(--gold-color);
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
  text-shadow: 0 0 8px rgba(87, 227, 141, 0.3);
}

.page-faq__categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-bottom: 60px;
}

.page-faq__category-card {
  background: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 25px;
  text-align: center;
  font-size: 1.1em;
  font-weight: 600;
  color: var(--text-main-color);
  text-decoration: none;
  transition: all 0.3s ease;
  display: block;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.page-faq__category-card:hover {
  background: var(--deep-green-color);
  border-color: var(--glow-color);
  color: var(--glow-color);
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(87, 227, 141, 0.3);
}

.page-faq__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-faq__faq-category-title {
  font-size: 2em;
  color: var(--glow-color);
  margin-top: 50px;
  margin-bottom: 30px;
  border-bottom: 2px solid var(--divider-color);
  padding-bottom: 15px;
  font-weight: 700;
}

.page-faq__faq-item {
  background: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  color: var(--text-main-color);
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.page-faq__faq-item:hover {
  border-color: var(--glow-color);
  box-shadow: 0 0 10px rgba(87, 227, 141, 0.3);
}

.page-faq__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  outline: none;
  font-weight: 700;
  font-size: 1.15em;
  color: var(--text-main-color);
  list-style: none; /* Remove default marker */
}

/* Hide default marker for Webkit browsers */
.page-faq__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-faq__faq-question {
  display: flex;
  align-items: center;
  flex-grow: 1;
}

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

.page-faq__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  width: 24px;
  text-align: center;
  color: var(--glow-color);
}

.page-faq__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  line-height: 1.6;
  color: var(--text-secondary-color);
}

.page-faq__faq-answer p {
  margin-bottom: 10px;
}

.page-faq__faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq__faq-answer ol,
.page-faq__faq-answer ul {
  margin: 15px 0;
  padding-left: 25px;
}

.page-faq__faq-answer li {
  margin-bottom: 8px;
  color: var(--text-secondary-color);
}

.page-faq__content-image {
  width: 100%;
  height: auto;
  display: block;
  max-width: 100%;
  border-radius: 8px;
  margin: 20px 0;
  object-fit: cover;
}

.page-faq__text-link {
  color: var(--glow-color);
  text-decoration: none;
  font-weight: 600;
}

.page-faq__text-link:hover {
  text-decoration: underline;
}

.page-faq__cta-section {
  background: var(--deep-green-color);
  padding: 80px 20px;
  text-align: center;
  margin-top: 60px;
  box-shadow: inset 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-faq__cta-content {
  max-width: 800px;
  margin: 0 auto;
}

.page-faq__cta-title {
  font-size: 2.8em;
  color: var(--gold-color);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.page-faq__cta-description {
  font-size: 1.2em;
  color: var(--text-secondary-color);
  margin-bottom: 40px;
}

.page-faq__contact-section {
  padding: 80px 20px;
  text-align: center;
  background-color: var(--body-bg-color);
}

.page-faq__contact-content {
  max-width: 700px;
  margin: 0 auto;
}

.page-faq__contact-title {
  font-size: 2.5em;
  color: var(--glow-color);
  margin-bottom: 20px;
  font-weight: 700;
}

.page-faq__contact-description {
  font-size: 1.1em;
  color: var(--text-secondary-color);
  margin-bottom: 40px;
}

.page-faq__btn-contact {
  background: var(--button-gradient);
  color: var(--text-main-color);
  padding: 15px 35px;
  border-radius: 50px;
  font-size: 1.1em;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-faq__btn-contact:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(87, 227, 141, 0.4);
}

/* ========================================= */
/* Responsive Design */
/* ========================================= */

@media (max-width: 1024px) {
  .page-faq__main-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }

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

  .page-faq__section-title {
    font-size: 2em;
  }

  .page-faq__cta-title {
    font-size: 2.2em;
  }

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

  .page-faq__contact-title {
    font-size: 2em;
  }

  .page-faq__faq-item summary {
    font-size: 1.05em;
    padding: 18px 20px;
  }

  .page-faq__faq-answer {
    padding: 0 20px 18px;
  }
}

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

  .page-faq__hero-section {
    padding: 10px 0 40px;
  }

  .page-faq__hero-content {
    padding: 0 15px;
  }

  .page-faq__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
    margin-bottom: 15px;
  }

  .page-faq__hero-description {
    font-size: 0.95em;
    margin-bottom: 20px;
  }

  .page-faq__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px; /* Constrain button group width */
    margin: 30px auto 0;
  }

  .page-faq__btn-primary,
  .page-faq__btn-secondary,
  .page-faq__btn-contact,
  .page-faq a[class*="button"],
  .page-faq 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: 1em;
  }

  .page-faq__content-area {
    padding: 40px 15px;
  }

  .page-faq__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-faq__categories-grid {
    grid-template-columns: 1fr;
    gap: 15px;
    margin-bottom: 40px;
  }

  .page-faq__category-card {
    padding: 20px;
    font-size: 1em;
  }

  .page-faq__faq-category-title {
    font-size: 1.6em;
    margin-top: 40px;
    margin-bottom: 25px;
  }

  .page-faq__faq-item {
    margin-bottom: 10px;
  }

  .page-faq__faq-item summary {
    font-size: 1em;
    padding: 15px 18px;
  }

  .page-faq__faq-answer {
    padding: 0 18px 15px;
  }

  .page-faq__content-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-faq__cta-section {
    padding: 60px 15px;
  }

  .page-faq__cta-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }

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

  .page-faq__contact-section {
    padding: 60px 15px;
  }

  .page-faq__contact-title {
    font-size: 1.8em;
    margin-bottom: 15px;
  }

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

  /* Ensure all containers containing images, videos, or buttons are responsive */
  .page-faq__hero-image-wrapper,
  .page-faq__categories-grid,
  .page-faq__faq-list,
  .page-faq__cta-content,
  .page-faq__contact-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  .page-faq__hero-image-wrapper { padding: 0 !important; } /* Image wrapper itself should be full width */

  /* Specific video rules (if any, though not explicitly used for FAQ content) */
  .page-faq video,
  .page-faq__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-faq__video-section {
    padding-top: 10px !important; /* body đã承担 --header-offset，此处禁止 var(--header-offset) */
  }

  .page-faq__video-section,
  .page-faq__video-container,
  .page-faq__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-faq__video-wrapper {
    padding: 0 !important;
  }
}