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

.page-support__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-support__dark-section {
  background: #08160F;
  color: #F2FFF6;
}

.page-support__card-bg {
  background: #11271B;
  color: #F2FFF6;
}

.page-support__section-title {
  font-size: 2.5em;
  font-weight: bold;
  text-align: center;
  margin-bottom: 20px;
  color: inherit; /* Inherit color from parent section */
}

.page-support__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  color: inherit;
}

/* Hero Section */
.page-support__hero-section {
  position: relative;
  padding: 10px 0 60px 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.page-support__hero-image-wrapper {
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  position: relative;
  overflow: hidden;
}

.page-support__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

.page-support__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 40px 20px;
  margin-top: -150px; /* Pull content up over image slightly */
  background: rgba(0, 0, 0, 0.6); /* Semi-transparent overlay for text readability */
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
  color: #F2FFF6;
}

.page-support__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: #F2FFF6;
  margin-bottom: 20px;
  font-size: clamp(2em, 5vw, 3.5em); /* Responsive font size for H1 */
}

.page-support__hero-description {
  font-size: 1.15em;
  margin-bottom: 30px;
  color: #A7D9B8;
}

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

.page-support__btn-primary,
.page-support__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #F2FFF6;
  border: none;
}

.page-support__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(17, 168, 78, 0.4);
}

.page-support__btn-secondary {
  background: transparent;
  color: #F2FFF6;
  border: 2px solid #2E7A4E;
}

.page-support__btn-secondary:hover {
  background: #2E7A4E;
  color: #F2FFF6;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(46, 122, 78, 0.4);
}

/* Intro Section */
.page-support__intro-section {
  padding: 60px 0;
  background: #f4f7f6;
  color: #333333;
}

.page-support__intro-section .page-support__section-title {
  color: #11A84E;
}

.page-support__text-block {
  margin-bottom: 20px;
  font-size: 1.05em;
  color: #333333;
}

/* Channels Section */
.page-support__channels-section {
  padding: 60px 0;
}

.page-support__channels-section .page-support__section-title,
.page-support__channels-section .page-support__section-description {
  color: #F2FFF6;
}

.page-support__channel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-support__channel-card {
  background: #0A4B2C; /* Deep Green for cards */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #F2FFF6;
}

.page-support__channel-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-support__channel-title {
  font-size: 1.8em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #F2C14E; /* Gold for titles */
}

.page-support__channel-text {
  font-size: 1em;
  margin-bottom: 25px;
  flex-grow: 1;
  color: #A7D9B8;
}

.page-support__email-link {
  color: #57E38D; /* Glow color for links */
  text-decoration: none;
  font-weight: bold;
}

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

/* Self-Help Section */
.page-support__self-help-section {
  padding: 60px 0;
  background: #f4f7f6;
  color: #333333;
}

.page-support__self-help-section .page-support__section-title {
  color: #11A84E;
}

.page-support__self-help-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-support__self-help-card {
  background: #ffffff;
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #333333;
}

.page-support__self-help-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-support__self-help-title {
  font-size: 1.8em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #11A84E;
}

.page-support__self-help-text {
  font-size: 1em;
  margin-bottom: 25px;
  flex-grow: 1;
  color: #333333;
}

/* FAQ Section */
.page-support__faq-section {
  padding: 60px 0;
}

.page-support__faq-section .page-support__section-title,
.page-support__faq-section .page-support__section-description {
  color: #F2FFF6;
}

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

.page-support__faq-item {
  background: #0A4B2C;
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  color: #F2FFF6;
}

.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: bold;
  color: #F2C14E;
  background: #0A4B2C;
  border-bottom: 1px solid #1E3A2A;
  list-style: none;
}

.page-support__faq-question::-webkit-details-marker {
  display: none;
}

.page-support__faq-question:hover {
  background: #114F2F;
}

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

.page-support__faq-toggle {
  font-size: 1.5em;
  margin-left: 15px;
  transition: transform 0.3s ease;
  color: #57E38D;
}

.page-support__faq-item[open] .page-support__faq-toggle {
  transform: rotate(45deg);
}

.page-support__faq-answer {
  padding: 15px 25px 20px 25px;
  font-size: 1em;
  color: #A7D9B8;
}

.page-support__faq-answer p {
  margin-bottom: 10px;
  color: #A7D9B8;
}

/* Common Issues Section */
.page-support__common-issues-section {
  padding: 60px 0;
  background: #f4f7f6;
  color: #333333;
}

.page-support__common-issues-section .page-support__section-title {
  color: #11A84E;
}

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

.page-support__issue-card {
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: #F2FFF6;
}

.page-support__issue-icon {
  width: 120px;
  height: 90px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-support__issue-title {
  font-size: 1.6em;
  font-weight: bold;
  margin-bottom: 15px;
  color: #F2C14E;
}

.page-support__issue-list {
  list-style: none;
  padding: 0;
  margin-bottom: 25px;
  text-align: left;
  width: 100%;
  color: #A7D9B8;
}

.page-support__issue-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
}

.page-support__issue-list li::before {
  content: '•';
  color: #57E38D;
  position: absolute;
  left: 0;
  font-size: 1.2em;
  line-height: 1;
}

/* Commitment Section */
.page-support__commitment-section {
  padding: 60px 0;
}

.page-support__commitment-section .page-support__section-title {
  color: #F2FFF6;
}

.page-support__commitment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-support__commitment-item {
  text-align: center;
  padding: 25px;
  background: #0A4B2C;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
  color: #F2FFF6;
}

.page-support__commitment-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 15px;
  object-fit: contain;
}

.page-support__commitment-title {
  font-size: 1.4em;
  font-weight: bold;
  margin-bottom: 10px;
  color: #F2C14E;
}

.page-support__commitment-text {
  font-size: 0.95em;
  color: #A7D9B8;
}

/* Contact CTA Section */
.page-support__contact-cta-section {
  padding: 60px 0;
  background: #f4f7f6;
  color: #333333;
}

.page-support__contact-cta-section .page-support__section-title {
  color: #11A84E;
}

.page-support__contact-cta-section .page-support__section-description {
  color: #333333;
}

.page-support__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-support__hero-content {
    margin-top: -100px;
    padding: 30px 20px;
  }

  .page-support__main-title {
    font-size: clamp(1.8em, 4.5vw, 3em);
  }

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

  .page-support__channel-grid,
  .page-support__self-help-grid,
  .page-support__issues-grid,
  .page-support__commitment-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

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

  .page-support__hero-section {
    padding-bottom: 40px;
  }

  .page-support__hero-image-wrapper {
    padding-bottom: 75%; /* 4:3 Aspect Ratio for mobile */
  }

  .page-support__hero-content {
    margin-top: -80px;
    padding: 25px 15px;
  }

  .page-support__main-title {
    font-size: clamp(1.5em, 6vw, 2.5em);
  }

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

  .page-support__hero-buttons,
  .page-support__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-support__btn-primary,
  .page-support__btn-secondary {
    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-support__section-title {
    font-size: 1.8em;
  }

  .page-support__channel-grid,
  .page-support__self-help-grid,
  .page-support__issues-grid,
  .page-support__commitment-grid {
    grid-template-columns: 1fr;
  }

  .page-support__channel-card,
  .page-support__self-help-card,
  .page-support__issue-card,
  .page-support__commitment-item {
    padding: 25px;
  }

  .page-support__channel-title,
  .page-support__self-help-title,
  .page-support__issue-title,
  .page-support__commitment-title {
    font-size: 1.5em;
  }

  .page-support__faq-question {
    font-size: 1.1em;
    padding: 18px 20px;
  }

  /* Image and container responsiveness */
  .page-support img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-support__section,
  .page-support__card,
  .page-support__container,
  .page-support__hero-image-wrapper,
  .page-support__channel-card,
  .page-support__self-help-card,
  .page-support__issue-card,
  .page-support__commitment-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  .page-support__hero-section {
    padding-top: 10px !important; /* body đã xử lý padding-top cho header */
  }

  .page-support__cta-buttons {
    padding-left: 15px;
    padding-right: 15px;
  }

}

@media (max-width: 480px) {
  .page-support__hero-content {
    margin-top: -60px;
    padding: 20px 10px;
  }

  .page-support__main-title {
    font-size: clamp(1.2em, 8vw, 2em);
  }

  .page-support__section-title {
    font-size: 1.5em;
  }

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