.page-support__hero-section {
  padding-top: 10px; /* Adjusted for header offset, using minimal top padding */
  background: linear-gradient(135deg, #26A9E0, #1A7BBF);
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-support__hero-image {
  width: 100%;
  height: 500px; /* Fixed height for desktop hero image container */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px;
}

.page-support__hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Cover for desktop, will be contain on mobile */
  display: block;
}

.page-support__hero-content {
  max-width: 900px;
  margin: 0 auto 40px;
  padding: 0 20px;
  z-index: 1;
}

.page-support__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #FFFFFF;
}

.page-support__hero-description {
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 800px;
  opacity: 0.9;
}

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

.page-support__cta-buttons--center {
  justify-content: center;
}

.page-support__btn-primary,
.page-support__btn-secondary,
.page-support__card-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-support__btn-primary {
  background: #EA7C07; /* Login color */
  color: #FFFFFF;
  border: 2px solid #EA7C07;
}

.page-support__btn-primary:hover {
  background: #D46F00;
  border-color: #D46F00;
  transform: translateY(-2px);
}

.page-support__btn-secondary {
  background: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-support__btn-secondary:hover {
  background: #F0F8FF;
  color: #1A7BBF;
  border-color: #1A7BBF;
  transform: translateY(-2px);
}

.page-support__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  line-height: 1.3;
}

.page-support__section-description {
  font-size: 1.1rem;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-support__dark-section {
  background: #26A9E0;
  color: #FFFFFF;
}

.page-support__dark-section .page-support__section-description {
  opacity: 0.9;
}

.page-support__light-bg {
  background: #FFFFFF;
  color: #333333;
}

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

/* Channels Section */
.page-support__channels-section {
  padding: 80px 0;
}

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

.page-support__channel-card {
  background: #F9F9F9;
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-support__channel-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-support__channel-card img {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  display: block;
}

.page-support__card-title {
  font-size: 1.6rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: #26A9E0;
}

.page-support__card-text {
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-support__card-button {
  background: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
  padding: 10px 20px;
  font-size: 0.95rem;
}

.page-support__card-button:hover {
  background: #1A7BBF;
  border-color: #1A7BBF;
}

/* FAQ Section */
.page-support__faq-section {
  padding: 80px 0;
}

.page-support__faq-list {
  max-width: 900px;
  margin: 0 auto 40px;
}

details.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
}
details.page-support__faq-item summary.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-support__faq-item summary.page-support__faq-question::-webkit-details-marker {
  display: none;
}
details.page-support__faq-item summary.page-support__faq-question:hover {
  background: #f5f5f5;
}
.page-support__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}
.page-support__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-support__faq-item .page-support__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
}

.page-support__faq-answer p {
  font-size: 1rem;
  line-height: 1.6;
  color: #555555;
}

/* Guide Section */
.page-support__guide-section {
  padding: 80px 0;
}

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

.page-support__guide-card {
  background: #FFFFFF;
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-support__guide-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-support__guide-card img {
  width: 100%;
  max-width: 300px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
  display: block;
}

/* Commitment Section */
.page-support__commitment-section {
  padding: 80px 0;
}

.page-support__commitment-list {
  list-style: none;
  padding: 0;
  max-width: 800px;
  margin: 0 auto 40px;
  text-align: left;
}

.page-support__commitment-list li {
  margin-bottom: 15px;
  font-size: 1.1rem;
  line-height: 1.6;
  display: flex;
  align-items: flex-start;
}

.page-support__list-icon {
  color: #26A9E0;
  font-size: 1.3em;
  margin-right: 15px;
  flex-shrink: 0;
  line-height: 1;
}

/* Contact CTA Section */
.page-support__contact-cta-section {
  padding: 80px 0;
  text-align: center;
}

/* General image rules */
.page-support img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Media Queries */
@media (max-width: 1024px) {
  .page-support__hero-image {
    height: 400px;
  }
  .page-support__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
  .page-support__hero-description {
    font-size: 1.05rem;
  }
  .page-support__container {
    padding: 50px 20px;
  }
  .page-support__section-title {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  }
  .page-support__channels-section, .page-support__faq-section, .page-support__guide-section, .page-support__commitment-section, .page-support__contact-cta-section {
    padding: 60px 0;
  }
}

@media (max-width: 768px) {
  .page-support__hero-image {
    height: auto;
    margin-bottom: 15px;
  }
  .page-support__hero-image img {
    object-fit: contain !important; /* HERO 主图区域: 移动 object-fit:contain */
    aspect-ratio: unset !important; /* HERO 主图区域: aspect-ratio:unset */
    width: 100% !important;
    height: auto !important;
  }
  .page-support__hero-section {
    padding-top: 10px; /* HERO 主图区域: 顶距约 10px */
  }
  .page-support__hero-content {
    margin-bottom: 30px;
    padding: 0 15px;
  }
  .page-support__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem); /* HERO 主图区域: 字号 clamp */
    margin-bottom: 15px;
  }
  .page-support__hero-description {
    font-size: 1rem;
    margin-bottom: 25px;
  }
  .page-support__cta-buttons {
    flex-direction: column; /* 按钮与按钮容器: 多个按钮横向排列时，允许换行 */
    gap: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
  }
  .page-support__btn-primary,
  .page-support__btn-secondary,
  .page-support__card-button {
    max-width: 100% !important;
    width: 100% !important;
    padding: 12px 20px !important;
    font-size: 1rem !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-support__container {
    padding: 40px 15px; /* 通用图片与容器: padding */
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-support__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
    margin-bottom: 15px;
  }
  .page-support__section-description {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }
  .page-support__channels-section, .page-support__faq-section, .page-support__guide-section, .page-support__commitment-section, .page-support__contact-cta-section {
    padding: 40px 0;
  }
  .page-support__channels-grid,
  .page-support__guide-grid {
    grid-template-columns: 1fr; /* Sản phẩm hiển thị 1 cột */
    gap: 25px;
  }
  .page-support__channel-card,
  .page-support__guide-card {
    padding: 25px;
  }
  .page-support__channel-card img,
  .page-support__guide-card img {
    max-width: 200px; /* Hình ảnh trong card */
    width: 100% !important;
    height: auto !important;
  }
  details.page-support__faq-item summary.page-support__faq-question { padding: 15px; }
  .page-support__faq-qtext { font-size: 15px; }
  details.page-support__faq-item .page-support__faq-answer {
    padding: 0 15px 15px;
  }
  .page-support__faq-answer p {
    font-size: 0.9rem;
  }
  .page-support__commitment-list {
    padding: 0 10px;
  }
  .page-support__commitment-list li {
    font-size: 1rem;
    margin-bottom: 10px;
  }
  .page-support__list-icon {
    font-size: 1.2em;
    margin-right: 10px;
  }
  /* 确保所有内容区图片和容器的防溢出 */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-support__section,
  .page-support__card,
  .page-support__container,
  .page-support__channels-grid,
  .page-support__guide-grid,
  .page-support__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow-x: hidden; /* 确保内容区不导致横向滚动 */
  }
}