:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --card-bg: #17191F;
  --page-bg: #0D0E12;
  --text-main: #FFF3E6;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange: #D96800;
  --button-gradient: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange) 100%);
}

.page-support {
  font-family: Arial, sans-serif;
  color: var(--text-main); /* Main text color for the page, assuming dark body background */
  line-height: 1.6;
  background-color: var(--page-bg); /* Explicitly set page background to match theme */
}

/* 🚨 页面标题区 H1 字号：对 HERO/首屏/标题条内的 h1 不要写死 font-size */
.page-support__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  font-size: clamp(2em, 5vw, 3.5em); /* Use clamp for responsive font size */
}

.page-support__section-title {
  font-size: clamp(1.8em, 4vw, 2.5em); /* Example, adjust as needed */
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 20px;
}

.page-support__section-description {
  font-size: 1.1em;
  color: var(--text-main);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

/* HERO：主图必须用 <img src="[GALLERY:hero:...]>，禁止用 background-image 显示主图；区块衬底可用纯色/渐变，但不得替代主图 img */
.page-support__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  /* 🚨 页头由 shared 的 body { padding-top: var(--header-offset); } 承担；此处仅用小额顶距，禁止 var(--header-offset) 以免双倍空白 */
  padding-top: 10px; /* Adhering to the 10px top padding rule */
  background-color: var(--card-bg); /* A slightly different background for contrast */
}

.page-support__hero-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-support__hero-image {
  width: 100%;
  margin-bottom: 30px;
}

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

.page-support__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
}

.page-support__hero-description {
  font-size: 1.15em;
  color: var(--text-main);
  max-width: 800px;
  margin: 20px auto 30px;
}

.page-support__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--button-gradient);
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-size: 18px;
  font-weight: bold;
  margin-top: 30px;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-sizing: border-box; /* Ensures padding doesn't increase total width */
  white-space: normal; /* Allows text to wrap */
  word-wrap: break-word; /* Breaks long words */
}

.page-support__cta-button:hover {
  background: linear-gradient(180deg, var(--deep-orange) 0%, var(--secondary-color) 100%); /* Slight inverse gradient on hover */
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.page-support__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

/* Why Choose Us Section */
.page-support__why-choose-us {
  background-color: var(--page-bg);
  padding: 80px 20px;
}

.page-support__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-support__feature-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-support__feature-item:hover {
  transform: translateY(-5px);
}

.page-support__feature-item img {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
}

.page-support__feature-title {
  font-size: 1.5em;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-support__feature-text {
  font-size: 1em;
  color: var(--text-main);
}

/* Contact Channels Section */
.page-support__contact-channels {
  background-color: var(--page-bg);
  padding: 80px 20px;
}

.page-support__channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-support__channel-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid var(--border-color);
}

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

.page-support__channel-title {
  font-size: 1.5em;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-support__channel-text {
  font-size: 1em;
  color: var(--text-main);
  margin-bottom: 30px;
  min-height: 80px; /* Ensure consistent height */
}

.page-support__channel-button {
  display: inline-block;
  padding: 12px 25px;
  background: var(--button-gradient);
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-size: 16px;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__channel-button:hover {
  background: linear-gradient(180deg, var(--deep-orange) 0%, var(--secondary-color) 100%);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

/* FAQ Section */
.page-support__faq-section {
  background-color: var(--page-bg);
  padding: 80px 20px;
}

details.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 10px; /* Slightly larger radius for consistency */
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}
details.page-support__faq-item:hover {
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

details.page-support__faq-item summary.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px; /* Increased padding */
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--primary-color); /* Question text color */
  font-weight: 600;
}
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: rgba(var(--primary-color), 0.1); /* Subtle hover effect */
}
.page-support__faq-qtext {
  flex: 1;
  font-size: 1.1em; /* Slightly larger font */
  line-height: 1.5;
  text-align: left;
  color: var(--primary-color);
}
.page-support__faq-toggle {
  font-size: 28px; /* Larger toggle icon */
  font-weight: bold;
  color: var(--primary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px; /* Consistent width */
  text-align: center;
}
details.page-support__faq-item .page-support__faq-answer {
  padding: 0 25px 25px;
  background: var(--page-bg); /* Answer background */
  border-top: 1px solid var(--border-color);
  border-radius: 0 0 10px 10px;
  color: var(--text-main); /* Answer text color */
}
.page-support__faq-answer p {
  margin: 0;
  padding-top: 15px;
}


/* Resources Section */
.page-support__resources {
  background-color: var(--page-bg);
  padding: 80px 20px;
}

.page-support__resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-support__resource-card {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  text-decoration: none;
  color: var(--text-main);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 180px;
}

.page-support__resource-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-support__resource-title {
  font-size: 1.3em;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.page-support__resource-text {
  font-size: 0.95em;
  color: var(--text-main);
  flex-grow: 1;
}

/* App Download Section */
.page-support__app-download {
  background-color: var(--card-bg); /* Use card background for this section */
  padding: 80px 20px;
  border-top: 1px solid var(--border-color);
}

.page-support__app-download-content {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}

.page-support__app-text-block {
  flex: 1;
  text-align: left;
}

.page-support__app-text-block .page-support__section-title,
.page-support__app-text-block .page-support__section-description {
  text-align: left; /* Override center alignment for this block */
}

.page-support__app-image-block {
  flex: 1;
  text-align: center;
}

.page-support__app-image-block img {
  width: 100%;
  height: auto;
  max-width: 500px; /* Max width for the image */
  border-radius: 10px;
  object-fit: cover;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

/* 🚨 移动端响应式设计（必须严格遵守） */
@media (max-width: 768px) {
  .page-support {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-support__hero-section {
    padding-top: 10px !important; /* Adhering to the 10px top padding rule */
    padding-bottom: 40px;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
  
  .page-support__hero-image img {
    border-radius: 4px;
  }
  
  .page-support__main-title {
    font-size: 1.8em;
  }

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

  .page-support__cta-button {
    padding: 12px 30px;
    font-size: 16px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

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

  .page-support__section-description {
    font-size: 0.9em;
    margin-bottom: 30px;
  }

  /* Mobile specific image and button responsiveness */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-support__section,
  .page-support__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .page-support__feature-item,
  .page-support__channel-item,
  .page-support__resource-card {
    padding: 20px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-support__feature-title,
  .page-support__channel-title {
    font-size: 1.3em;
  }

  .page-support__channel-text {
    min-height: auto; /* Remove fixed height on mobile */
  }

  details.page-support__faq-item summary.page-support__faq-question {
    padding: 15px;
  }
  .page-support__faq-qtext {
    font-size: 1em;
  }
  .page-support__faq-toggle {
    font-size: 24px;
    width: 24px;
  }
  details.page-support__faq-item .page-support__faq-answer {
    padding: 0 15px 15px;
  }

  .page-support__app-download-content {
    flex-direction: column; /* Stack content vertically on mobile */
    gap: 30px;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .page-support__app-text-block {
    text-align: center; /* Center text for stacked layout */
  }

  .page-support__app-text-block .page-support__section-title,
  .page-support__app-text-block .page-support__section-description {
    text-align: center;
  }
  
  /* If multiple buttons horizontally, ensure they stack or wrap */
  .page-support__button-group, /* generic class for button groups */
  .page-support__cta-buttons { /* specific cta button group */
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}