/* style/contact.css */

:root {
  --primary-color: #FFD700; /* Gold */
  --secondary-color: #1E90FF; /* Dodger Blue */
  --dark-bg-color: #121212; /* Body background */
  --light-bg-color: #1a1a1a; /* Slightly lighter dark for sections */
  --text-light: #ffffff;
  --text-dark: #333333;
  --card-bg-dark: rgba(255, 255, 255, 0.08);
  --border-color-dark: rgba(255, 255, 255, 0.15);
}

.page-contact {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-light); /* Main text color for dark body background */
  background-color: var(--dark-bg-color);
}

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

/* 🚨 桌面端顶部间距（必须严格遵守） */
.page-contact__hero-section {
  padding-top: 120px; /* 桌面端：根据导航栏实际高度调整 */
  padding-bottom: 60px;
  background: var(--light-bg-color);
  text-align: center;
  color: var(--text-light);
}

.page-contact__main-title {
  font-size: 3em;
  margin-bottom: 20px;
  color: var(--primary-color);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.page-contact__hero-description {
  font-size: 1.2em;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #f0f0f0;
}

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

.page-contact__cta-button {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  border: none;
  cursor: pointer;
  text-align: center;
}

.page-contact__cta-button--primary {
  background: var(--primary-color);
  color: var(--text-dark);
}

.page-contact__cta-button--primary:hover {
  background: #e6c200;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.page-contact__cta-button--secondary {
  background: var(--secondary-color);
  color: var(--text-light);
}

.page-contact__cta-button--secondary:hover {
  background: #1a7fe6;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.page-contact__section-title {
  font-size: 2.5em;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 25px;
  padding-top: 40px;
}

.page-contact__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px auto;
  color: #cccccc;
}

/* Channels Section */
.page-contact__channels-section {
  padding: 80px 0;
  background: var(--dark-bg-color);
}

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

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

.page-contact__channel-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-contact__channel-icon {
  width: 100px;
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-contact__channel-title {
  font-size: 1.8em;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-contact__channel-text {
  font-size: 1em;
  color: #cccccc;
  margin-bottom: 25px;
}

.page-contact__channel-button {
  display: inline-block;
  padding: 10px 25px;
  background: var(--secondary-color);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
}

.page-contact__channel-button:hover {
  background: #1a7fe6;
}

.page-contact__link {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-contact__link:hover {
  color: var(--primary-color);
  text-decoration: underline;
}

/* Why Us Section */
.page-contact__why-us-section {
  padding: 80px 0;
  background: var(--light-bg-color);
}

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

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

.page-contact__feature-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-contact__feature-icon {
  width: 80px;
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-contact__feature-title {
  font-size: 1.6em;
  color: var(--primary-color);
  margin-bottom: 15px;
  text-align: center;
}

.page-contact__feature-text {
  font-size: 1em;
  color: #cccccc;
  text-align: center;
}

/* FAQ Section */
.page-contact__faq-section {
  padding: 80px 0;
  background: var(--dark-bg-color);
}

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

/* FAQ容器样式 */
.page-contact__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  overflow: hidden;
  background: var(--card-bg-dark);
  border: 1px solid var(--border-color-dark);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* FAQ默认状态 - 答案隐藏 */
.page-contact__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 20px;
  opacity: 0;
  color: #cccccc;
}

/* FAQ展开状态 - 🚨 使用!important和足够大的max-height确保一定能展开 */
.page-contact__faq-item.active .page-contact__faq-answer {
  max-height: 2000px !important; /* 🚨 Sử dụng !important để đảm bảo ưu tiên, giá trị đủ lớn để chứa mọi nội dung */
  padding: 20px !important;
  opacity: 1;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 0 0 5px 5px;
}

/* 问题样式 */
.page-contact__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: var(--card-bg-dark);
  border-radius: 5px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-contact__faq-question:hover {
  background: rgba(255, 255, 255, 0.1);
}

.page-contact__faq-question:active {
  background: rgba(255, 255, 255, 0.12);
}

/* 问题标题样式 */
.page-contact__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.1em;
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none; /* 防止h3标签阻止点击事件 */
  color: var(--primary-color);
}

/* 切换图标 */
.page-contact__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  line-height: 1;
  color: var(--secondary-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none; /* 防止图标阻止点击事件 */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--secondary-color);
  border-radius: 50%;
}

.page-contact__faq-item.active .page-contact__faq-toggle {
  color: var(--primary-color);
  border-color: var(--primary-color);
  transform: rotate(45deg); /* rotate for 'x' or '-' effect */
}

/* Commitment Section */
.page-contact__commitment-section {
  padding: 80px 0;
  background: var(--light-bg-color);
}

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

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

.page-contact__commitment-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-contact__commitment-icon {
  width: 90px;
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-contact__commitment-item h3 {
  font-size: 1.7em;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-contact__commitment-item p {
  font-size: 1em;
  color: #cccccc;
}

.page-contact__commitment-footer {
  font-size: 1.1em;
  text-align: center;
  margin-top: 50px;
  color: #f0f0f0;
}

/* Join Section */
.page-contact__join-section {
  padding: 80px 0;
  background: var(--dark-bg-color);
  text-align: center;
}

/* 🚨 移动端响应式设计（必须严格遵守） */
@media (max-width: 768px) {
  .page-contact__hero-section {
    padding-top: 100px !important; /* 移动端：根据移动端导航栏实际高度调整 */
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

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

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

  .page-contact__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-contact__cta-button {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 25px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-contact__section-title {
    font-size: 1.8em;
    padding-top: 20px;
  }

  .page-contact__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-contact__channels-section,
  .page-contact__why-us-section,
  .page-contact__faq-section,
  .page-contact__commitment-section,
  .page-contact__join-section {
    padding: 40px 0;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-contact__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-contact__channels-grid,
  .page-contact__features-grid,
  .page-contact__commitment-points {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-contact__channel-card,
  .page-contact__feature-item,
  .page-contact__commitment-item {
    padding: 20px;
  }

  .page-contact__channel-icon,
  .page-contact__feature-icon,
  .page-contact__commitment-icon {
    width: 80px;
    margin-bottom: 15px;
  }

  .page-contact__channel-title,
  .page-contact__feature-title,
  .page-contact__commitment-item h3 {
    font-size: 1.4em;
  }

  .page-contact__channel-text,
  .page-contact__feature-text,
  .page-contact__commitment-item p,
  .page-contact__commitment-footer {
    font-size: 0.9em;
  }

  /* FAQ Mobile Specifics */
  .page-contact__faq-question {
    padding: 15px;
    flex-wrap: wrap;
  }
  
  .page-contact__faq-question h3 {
    font-size: 1em;
    margin-bottom: 0;
    width: calc(100% - 40px);
  }
  
  .page-contact__faq-toggle {
    margin-left: 10px;
    width: 24px;
    height: 24px;
    font-size: 20px;
  }
  
  .page-contact__faq-answer {
    padding: 0 15px;
  }
  
  .page-contact__faq-item.active .page-contact__faq-answer {
    padding: 15px !important;
  }

  /* Image and Video responsive */
  .page-contact img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-contact video,
  .page-contact__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-contact__video-section,
  .page-contact__video-container,
  .page-contact__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden !important;
  }

  .page-contact__video-section {
    padding-top: 10px !important; /* Mobile padding-top for video section */
    padding-left: 15px;
    padding-right: 15px;
  }
}