.page-support {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main); /* #F2FFF6 */
  background-color: var(--background); /* #08160F */
}

/* Hero Section */
.page-support__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-bottom: 60px; /* Adjust as needed */
  overflow: hidden;
  padding-top: 10px; /* Small top padding, body handles header offset */
}

.page-support__hero-image-wrapper {
  width: 100%;
  max-height: 700px; /* Limit height of hero image wrapper */
  overflow: hidden;
  position: relative;
  z-index: 0; /* Ensure image is behind content overlay if any */
}

.page-support__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-support__hero-content {
  position: relative; /* Relative to hero section, not image */
  z-index: 1;
  max-width: 900px;
  padding: 20px;
  margin-top: -150px; /* Pull content up over the image slightly */
  background-color: rgba(17, 39, 27, 0.85); /* Card BG with transparency */
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

.page-support__hero-title {
  color: var(--gold); /* #F2C14E */
  margin-bottom: 15px;
  font-weight: bold;
  letter-spacing: 0.05em;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0,0,0,0.5);
  font-size: clamp(2rem, 5vw, 3.2rem); /* Responsive font size for H1 */
}

.page-support__hero-description {
  color: var(--text-secondary); /* #A7D9B8 */
  margin-bottom: 30px;
  font-size: 1.1rem;
}

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

/* Section Titles */
.page-support__section-title {
  color: var(--gold); /* #F2C14E */
  text-align: center;
  margin-bottom: 40px;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: bold;
  letter-spacing: 0.03em;
  text-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

/* Paragraphs */
.page-support__paragraph {
  color: var(--text-main); /* #F2FFF6 */
  margin-bottom: 20px;
  font-size: 1rem;
  line-height: 1.7;
}

/* CTA Button */
.page-support__cta-button {
  display: inline-block;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #FFFFFF;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-support__cta-button:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* Intro Section */
.page-support__intro-section {
  padding: 60px 0;
  background-color: var(--background); /* #08160F */
}

/* Channels Section */
.page-support__channels-section {
  padding: 60px 0;
  background-color: var(--deep-green); /* #0A4B2C */
}

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

.page-support__channel-card {
  background-color: var(--card-bg); /* #11271B */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 450px; /* Ensure cards have similar height */
}

.page-support__channel-card:hover {
  transform: translateY(-5px);
}

.page-support__channel-icon {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin: 0 auto 20px auto;
  border-radius: 8px;
  object-fit: cover;
}

.page-support__channel-title {
  color: var(--gold); /* #F2C14E */
  font-size: 1.4rem;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-support__channel-description {
  color: var(--text-secondary); /* #A7D9B8 */
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-support__channel-button {
  display: inline-block;
  background: var(--primary-color); /* #11A84E */
  color: #FFFFFF;
  padding: 12px 25px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease;
  border: none;
  cursor: pointer;
}

.page-support__channel-button:hover {
  background-color: var(--secondary-color); /* #22C768 */
}

/* FAQ Section */
.page-support__faq-section {
  padding: 60px 0;
  background-color: var(--background); /* #08160F */
}

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

.page-support__faq-item {
  background-color: var(--card-bg); /* #11271B */
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  color: var(--text-main); /* #F2FFF6 */
  font-weight: bold;
  font-size: 1.1rem;
  background-color: var(--deep-green); /* #0A4B2C */
  border-bottom: 1px solid var(--divider); /* #1E3A2A */
  transition: background-color 0.3s ease;
}

.page-support__faq-question::-webkit-details-marker, /* Hide default marker for Webkit */
.page-support__faq-question::marker { /* Hide default marker for Firefox */
  display: none;
}

.page-support__faq-question:hover {
  background-color: var(--primary-color); /* #11A84E */
}

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

.page-support__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--gold); /* #F2C14E */
}

.page-support__faq-item[open] .page-support__faq-question {
  background-color: var(--primary-color); /* #11A84E */
  border-bottom: 1px solid var(--secondary-color); /* #22C768 */
}

.page-support__faq-item[open] .page-support__faq-toggle {
  color: #FFFFFF;
}

.page-support__faq-answer {
  padding: 15px 25px 20px;
  color: var(--text-secondary); /* #A7D9B8 */
  font-size: 0.95rem;
  line-height: 1.7;
}

.page-support__faq-answer p {
  margin-bottom: 10px;
}
.page-support__faq-answer p:last-child {
  margin-bottom: 0;
}

/* Commitment Section */
.page-support__commitment-section {
  padding: 60px 0;
  background-color: var(--deep-green); /* #0A4B2C */
}

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

.page-support__commitment-card {
  background-color: var(--card-bg); /* #11271B */
  border-radius: 10px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
}

.page-support__commitment-card:hover {
  transform: translateY(-3px);
}

.page-support__commitment-icon {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin: 0 auto 15px auto;
  border-radius: 5px;
  object-fit: cover;
}

.page-support__commitment-title {
  color: var(--gold); /* #F2C14E */
  font-size: 1.2rem;
  margin-bottom: 10px;
  font-weight: bold;
}

.page-support__commitment-description {
  color: var(--text-secondary); /* #A7D9B8 */
  font-size: 0.9rem;
}

/* Tips Section */
.page-support__tips-section {
  padding: 60px 0;
  background-color: var(--background); /* #08160F */
}

.page-support__tips-content {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  align-items: center;
}

.page-support__tips-image {
  flex: 1 1 40%;
  min-width: 300px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  object-fit: cover;
}

.page-support__tips-list {
  flex: 1 1 50%;
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-support__tips-item {
  background-color: var(--card-bg); /* #11271B */
  border-left: 5px solid var(--primary-color); /* #11A84E */
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.page-support__tips-item-title {
  color: var(--gold); /* #F2C14E */
  font-size: 1.15rem;
  margin-bottom: 10px;
  font-weight: bold;
}

.page-support__tips-item-description {
  color: var(--text-secondary); /* #A7D9B8 */
  font-size: 0.95rem;
}

/* Video Section */
.page-support__video-section {
  padding: 60px 0;
  background-color: var(--deep-green); /* #0A4B2C */
  text-align: center;
}

.page-support__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  width: 100%; /* Desktop width */
  max-width: 100%;
  background: #000;
  border-radius: 10px;
  margin-bottom: 20px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
  margin-left: auto; /* Center the wrapper */
  margin-right: auto;
}

.page-support__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block; /* Ensure it behaves like a block element */
}

.page-support__video-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5); /* Semi-transparent overlay */
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  cursor: pointer;
}

.page-support__video-wrapper:hover .page-support__video-overlay {
  opacity: 1;
}

.page-support__video-cta-button {
  display: inline-block;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #FFFFFF;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-support__video-cta-button:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* CTA Section */
.page-support__cta-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--background); /* Fallback */
}

.page-support__dark-section {
  background-color: var(--deep-green); /* #0A4B2C */
}

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

.page-support__btn-primary {
  background: var(--button-gradient);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-support__btn-secondary {
  background: #ffffff;
  color: var(--primary-color); /* #11A84E */
  border: 2px solid var(--primary-color); /* #11A84E */
}

.page-support__btn-secondary:hover {
  background: var(--primary-color); /* #11A84E */
  color: #ffffff;
  border-color: var(--primary-color); /* #11A84E */
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-support__hero-content {
    margin-top: -100px;
    max-width: 700px;
  }
}

@media (max-width: 768px) {
  .page-support__hero-section {
    padding-bottom: 40px;
  }

  .page-support__hero-content {
    margin-top: -80px;
    padding: 15px;
    max-width: 90%;
  }

  .page-support__hero-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }

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

  .page-support__section-title {
    font-size: clamp(1.5rem, 6vw, 2.2rem);
    margin-bottom: 30px;
  }

  .page-support__intro-section,
  .page-support__channels-section,
  .page-support__faq-section,
  .page-support__commitment-section,
  .page-support__tips-section,
  .page-support__video-section,
  .page-support__cta-section {
    padding: 40px 0;
  }

  .page-support__channels-grid {
    grid-template-columns: 1fr;
  }
  
  .page-support__channel-card {
    min-height: auto; /* Allow cards to resize */
  }

  .page-support__tips-content {
    flex-direction: column;
  }

  .page-support__tips-image {
    flex: 1 1 100%;
    min-width: unset;
    width: 100%;
  }

  .page-support__tips-list {
    flex: 1 1 100%;
    width: 100%;
  }

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

  /* Force responsive images and videos */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-support video,
  .page-support__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-support__container,
  .page-support__video-section,
  .page-support__video-container,
  .page-support__video-wrapper,
  .page-support__cta-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    overflow: hidden !important;
  }

  /* Buttons responsive */
  .page-support__cta-button,
  .page-support__btn-primary,
  .page-support__btn-secondary,
  .page-support a[class*="button"],
  .page-support a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-support__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset, đây chỉ là khoảng đệm nhỏ */
  }
}

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

/* Ensure contrast for text on various backgrounds */
.page-support__dark-section {
  color: var(--text-main); /* Light text on dark background */
}

.page-support__card {
  color: var(--text-main); /* Light text on card background */
}

.page-support__faq-answer {
  color: var(--text-secondary); /* Slightly lighter text for answers */
}

/* General button styling for consistency */
.page-support a[class*="button"] {
  text-align: center;
}