/* style/support.css */
/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */
.page-support {
  font-family: 'Arial', sans-serif;
  color: var(--text-main);
  background-color: var(--bg-color-page);
}

.page-support__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  text-align: center;
  overflow: hidden;
}

.page-support__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  margin-bottom: 30px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

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

.page-support__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
  margin-bottom: 20px;
  text-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
}

.page-support__hero-description {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--text-secondary);
  margin-bottom: 30px;
}

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

.page-support__btn-primary,
.page-support__btn-secondary {
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
  box-sizing: border-box;
}

.page-support__btn-primary {
  background: linear-gradient(180deg, var(--button-gradient-top) 0%, var(--button-gradient-bottom) 100%);
  color: var(--text-main);
  border: 2px solid transparent;
}

.page-support__btn-primary:hover {
  background: linear-gradient(180deg, var(--button-gradient-bottom) 0%, var(--button-gradient-top) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-support__btn-secondary {
  background: var(--card-bg-color);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.page-support__btn-secondary:hover {
  background: var(--primary-color);
  color: var(--text-main);
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

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

.page-support__dark-section {
  background-color: var(--bg-color-section-dark);
  color: var(--text-main);
}

.page-support__light-bg {
  background-color: #ffffff;
  color: var(--text-contrast-fix);
}

.page-support__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: inherit; /* Inherits from section, ensures contrast */
  margin-bottom: 20px;
  text-align: center;
}

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

.page-support__text-contrast-fix {
  color: var(--text-contrast-fix) !important; /* Ensure dark text on light background */
}

/* Common Topics Section */
.page-support__common-topics {
  padding: 80px 0;
}

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

.page-support__topic-card {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  padding: 30px;
  text-align: left;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  text-decoration: none;
  color: var(--text-main);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-support__topic-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.page-support__topic-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--gold-color);
  margin-bottom: 15px;
}

.page-support__topic-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  flex-grow: 1;
}

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

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

.page-support__faq-item {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-support__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-contrast-fix);
  background-color: #f7f7f7;
  transition: background-color 0.3s ease;
}

.page-support__faq-item summary:hover {
  background-color: #f0f0f0;
}

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

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

.page-support__faq-toggle {
  font-size: 1.5rem;
  margin-left: 20px;
  color: var(--primary-color);
}

.page-support__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-contrast-fix);
  border-top: 1px solid var(--border-color);
}

.page-support__faq-answer p {
  margin: 0;
}

.page-support__faq-answer a {
  color: var(--primary-color);
  text-decoration: none;
}

.page-support__faq-answer a:hover {
  text-decoration: underline;
}

.page-support__faq-cta-buttons {
  text-align: center;
  margin-top: 40px;
}

/* Guides Section */
.page-support__guides-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-color: var(--card-bg-color);
  border-radius: 12px;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  overflow: hidden;
  text-align: center;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-support__guide-image {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-support__guide-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 20px 20px 10px;
}

.page-support__guide-text {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  padding: 0 20px 20px;
  flex-grow: 1;
}

.page-support__guide-card .page-support__btn-secondary {
  margin: 0 20px 20px;
  width: calc(100% - 40px);
  box-sizing: border-box;
}

/* Security Section */
.page-support__security-section {
  padding: 80px 0;
}

.page-support__security-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
}

.page-support__security-text {
  flex: 1 1 50%;
  min-width: 300px;
}

.page-support__security-subtitle {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 25px;
  margin-bottom: 15px;
}

.page-support__security-text p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-contrast-fix);
  margin-bottom: 20px;
}

.page-support__security-image-wrapper {
  flex: 1 1 40%;
  min-width: 300px;
  text-align: center;
}

.page-support__security-image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  display: block;
}

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

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

/* Custom color variables */
:root {
  --primary-color: #11A84E; /* Main */
  --secondary-color: #22C768; /* Auxiliary */
  --button-gradient-top: #2AD16F;
  --button-gradient-bottom: #13994A;
  --card-bg-color: #11271B;
  --bg-color-page: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green-color: #0A4B2C;
  --bg-color-section-dark: #0A4B2C; /* Using Deep Green for dark sections */
  --text-contrast-fix: #333333; /* Dark text for light backgrounds */
}

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

  .page-support__container {
    padding-left: 15px;
    padding-right: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-support__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important;
  }

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

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

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

  .page-support__btn-primary,
  .page-support__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-support__section-title {
    font-size: clamp(1.5rem, 7vw, 2rem);
  }

  .page-support__section-description {
    font-size: 0.95rem;
  }

  .page-support__topic-grid,
  .page-support__guide-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .page-support__topic-title {
    font-size: 1.3rem;
  }

  .page-support__faq-item summary {
    font-size: 1.1rem;
    padding: 15px 20px;
  }

  .page-support__faq-answer {
    padding: 15px 20px;
  }

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

  .page-support__security-text,
  .page-support__security-image-wrapper {
    min-width: unset;
    flex: 1 1 100%;
  }

  /* Image and Video responsiveness */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-support__hero-image-wrapper,
  .page-support__security-image-wrapper,
  .page-support__guide-card,
  .page-support__topic-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
}