.page-support {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #1F2D3D; /* Text Main */
  background-color: #F4F7FB; /* Background */
}

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

.page-support__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  margin-bottom: 40px;
  text-align: center;
  background-color: #F4F7FB;
}

.page-support__hero-image-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  overflow: hidden;
  border-radius: 10px;
  margin-bottom: 30px;
}

.page-support__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* Cover for desktop */
  border-radius: 10px;
}

.page-support__hero-content {
  max-width: 800px;
  margin: -80px auto 0;
  padding: 30px;
  background: #FFFFFF; /* Card BG */
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  position: relative;
  z-index: 10;
}

.page-support__main-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 15px;
  line-height: 1.2;
}

.page-support__hero-description {
  font-size: 18px;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 25px;
}

.page-support__cta-button {
  display: inline-block;
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); /* Button gradient */
  color: #ffffff;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  font-size: 18px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.4);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(47, 107, 255, 0.6);
}

.page-support__section-title {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  color: #1F2D3D; /* Text Main */
  text-align: center;
  margin-bottom: 20px;
}

.page-support__section-title--light {
  color: #ffffff;
}

.page-support__section-description {
  font-size: 17px;
  color: #1F2D3D; /* Text Main */
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-support__section-description--light {
  color: #f0f0f0;
}

.page-support__channels-section, .page-support__faq-section, .page-support__guides-section, .page-support__policies-section, .page-support__why-choose-section, .page-support__feedback-section {
  padding: 60px 0;
  margin-bottom: 20px;
  border-radius: 10px;
  overflow: hidden;
}

.page-support__light-bg {
  background-color: #F4F7FB; /* Background */
  color: #1F2D3D;
}

.page-support__medium-bg {
  background-color: #6FA3FF; /* Auxiliary Color */
  color: #1F2D3D;
}

.page-support__dark-bg {
  background-color: #2F6BFF; /* Primary Color */
  color: #ffffff;
}

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

.page-support__channel-item, .page-support__guide-card {
  background: #FFFFFF; /* Card BG */
  border: 1px solid #D6E2FF; /* Border */
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.page-support__channel-icon, .page-support__guide-image {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin-bottom: 20px;
  object-fit: contain;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-support__channel-title, .page-support__guide-title {
  font-size: 22px;
  font-weight: 600;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 15px;
}

.page-support__channel-text, .page-support__guide-text {
  font-size: 16px;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 25px;
}

.page-support__email-address {
  font-weight: 600;
  color: #2F6BFF;
}

.page-support__button {
  display: inline-block;
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%); /* Button gradient */
  color: #ffffff;
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 500;
  font-size: 16px;
  transition: background-color 0.3s ease;
  border: none;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__button:hover {
  background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
}

.page-support__social-buttons {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.page-support__button--telegram, .page-support__button--zalo {
  background: #2F6BFF; /* Use primary color for social buttons for consistency */
  padding: 10px 15px;
  border-radius: 5px;
}

.page-support__button--telegram:hover, .page-support__button--zalo:hover {
  background: #6FA3FF;
}

/* FAQ Section */
details.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #D6E2FF; /* Border */
  overflow: hidden;
  background: #FFFFFF; /* Card BG */
}
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;
  color: #1F2D3D; /* Text Main */
}
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: #F4F7FB;
}
.page-support__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #1F2D3D; /* Text Main */
}
.page-support__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #2F6BFF; /* Primary Color */
  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: #F4F7FB;
  border-radius: 0 0 5px 5px;
  color: #1F2D3D; /* Text Main */
}

.page-support__faq-answer p {
  margin-bottom: 15px;
}

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

.page-support__policy-link {
  display: inline-block;
  color: #ffffff;
  text-decoration: none;
  font-size: 17px;
  padding: 12px 25px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 5px;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__policy-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: #ffffff;
}

.page-support__benefits-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-support__benefit-item {
  background: #FFFFFF; /* Card BG */
  border: 1px solid #D6E2FF; /* Border */
  border-radius: 8px;
  padding: 20px;
  font-size: 17px;
  color: #1F2D3D; /* Text Main */
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.page-support__benefit-item strong {
  color: #2F6BFF; /* Primary Color */
}

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

/* --- Responsive Styles --- */

@media (max-width: 1024px) {
  .page-support__hero-content {
    margin-top: -60px;
    padding: 25px;
  }

  .page-support__main-title {
    font-size: clamp(26px, 3.8vw, 40px);
  }

  .page-support__hero-description {
    font-size: 17px;
  }

  .page-support__cta-button {
    padding: 12px 25px;
    font-size: 17px;
  }

  .page-support__section-title {
    font-size: clamp(22px, 3.2vw, 34px);
  }

  .page-support__section-description {
    font-size: 16px;
    margin-bottom: 30px;
  }

  .page-support__channel-grid, .page-support__guide-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
  }

  .page-support__channel-item, .page-support__guide-card {
    padding: 25px;
  }

  .page-support__channel-title, .page-support__guide-title {
    font-size: 20px;
  }

  .page-support__channel-text, .page-support__guide-text {
    font-size: 15px;
  }

  .page-support__button {
    padding: 9px 18px;
    font-size: 15px;
  }

  details.page-support__faq-item summary.page-support__faq-question {
    padding: 15px 18px;
  }

  .page-support__faq-qtext {
    font-size: 15px;
  }

  details.page-support__faq-item .page-support__faq-answer {
    padding: 0 18px 18px;
  }

  .page-support__policy-link {
    padding: 10px 20px;
    font-size: 16px;
  }

  .page-support__benefit-item {
    padding: 18px;
    font-size: 16px;
  }
}

@media (max-width: 768px) {
  .page-support__container {
    padding: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* HERO 主图区域 */
  .page-support__hero-section {
    padding-top: 10px; /* Small top padding for mobile */
    margin-bottom: 30px;
  }

  .page-support__hero-image-wrapper {
    padding-bottom: 75%; /* 4:3 Aspect Ratio for mobile hero */
    border-radius: 0;
  }

  .page-support__hero-image {
    object-fit: contain !important; /* Contain for mobile */
    aspect-ratio: unset !important;
  }

  .page-support__hero-content {
    margin-top: -40px;
    padding: 20px;
    border-radius: 8px;
  }

  .page-support__main-title {
    font-size: clamp(24px, 7vw, 32px); /* Smaller H1 for mobile */
    margin-bottom: 10px;
  }

  .page-support__hero-description {
    font-size: 15px;
    margin-bottom: 20px;
  }

  /* 按钮与按钮容器 */
  .page-support__cta-button,
  .page-support__button,
  .page-support__policy-link,
  .page-support__button--telegram,
  .page-support__button--zalo {
    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__social-buttons {
    flex-direction: column !important;
    gap: 10px;
  }

  .page-support__channels-section,
  .page-support__faq-section,
  .page-support__guides-section,
  .page-support__policies-section,
  .page-support__why-choose-section,
  .page-support__feedback-section {
    padding: 40px 0;
    margin-bottom: 15px;
  }

  .page-support__section-title {
    font-size: clamp(20px, 6vw, 28px);
    margin-bottom: 15px;
  }

  .page-support__section-description {
    font-size: 15px;
    margin-bottom: 25px;
  }

  .page-support__channel-grid, .page-support__guide-grid {
    grid-template-columns: 1fr; /* Single column for mobile */
    gap: 20px;
    margin-top: 20px;
  }

  .page-support__channel-item, .page-support__guide-card {
    padding: 20px;
  }

  .page-support__channel-title, .page-support__guide-title {
    font-size: 18px;
  }

  .page-support__channel-text, .page-support__guide-text {
    font-size: 14px;
  }

  details.page-support__faq-item summary.page-support__faq-question {
    padding: 15px;
  }

  .page-support__faq-qtext {
    font-size: 14px;
  }

  details.page-support__faq-item .page-support__faq-answer {
    padding: 0 15px 15px;
  }

  .page-support__policy-links {
    flex-direction: column;
    gap: 15px;
    margin-top: 30px;
  }

  .page-support__policy-link {
    padding: 10px 15px;
    font-size: 15px;
  }

  .page-support__benefits-list {
    gap: 15px;
    margin-top: 30px;
  }

  .page-support__benefit-item {
    padding: 15px;
    font-size: 15px;
  }

  /* 通用图片与容器 */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-support__section,
  .page-support__card,
  .page-support__container,
  .page-support__policy-links,
  .page-support__social-buttons {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-support p, .page-support li, .page-support h1, .page-support h2, .page-support h3, .page-support h4, .page-support h5, .page-support h6 {
    word-wrap: break-word;
    overflow-wrap: break-word;
  }
}