.page-blog-how-to-contact-u888-customer-service {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--nen-tong);
}

.page-blog-how-to-contact-u888-customer-service__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-blog-how-to-contact-u888-customer-service__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 40px;
}

.page-blog-how-to-contact-u888-customer-service__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -1;
}

.page-blog-how-to-contact-u888-customer-service__hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  padding: 20px;
  background: rgba(17, 39, 27, 0.7); /* Card BG with transparency for readability */
  border-radius: 10px;
  margin-top: 50px;
}

.page-blog-how-to-contact-u888-customer-service__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  color: var(--text-main);
  margin-bottom: 15px;
  font-weight: bold;
  line-height: 1.2;
}

.page-blog-how-to-contact-u888-customer-service__hero-description {
  font-size: clamp(1em, 1.8vw, 1.3em);
  color: var(--text-secondary);
  margin-bottom: 30px;
}

.page-blog-how-to-contact-u888-customer-service__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
  border: none;
  cursor: pointer;
}

.page-blog-how-to-contact-u888-customer-service__cta-button:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
}

.page-blog-how-to-contact-u888-customer-service__cta-button--large {
    font-size: 1.2em;
    padding: 18px 35px;
}

.page-blog-how-to-contact-u888-customer-service__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.5em);
  color: var(--text-main);
  text-align: center;
  margin-bottom: 30px;
  font-weight: bold;
}

.page-blog-how-to-contact-u888-customer-service__text-block {
  font-size: 1.1em;
  color: var(--text-main);
  margin-bottom: 20px;
}

.page-blog-how-to-contact-u888-customer-service__highlight {
  color: var(--gold);
  font-weight: bold;
}

.page-blog-how-to-contact-u888-customer-service__light-bg {
  background-color: var(--nen-tong);
  color: var(--text-main);
}

.page-blog-how-to-contact-u888-customer-service__dark-bg {
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-blog-how-to-contact-u888-customer-service__content-area {
  padding: 60px 0;
}

.page-blog-how-to-contact-u888-customer-service__contact-channels {
  padding: 60px 0;
}

.page-blog-how-to-contact-u888-customer-service__channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog-how-to-contact-u888-customer-service__channel-card {
  background-color: var(--nen-tong);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  border: 1px solid var(--border);
}

.page-blog-how-to-contact-u888-customer-service__channel-card:hover {
  transform: translateY(-5px);
}

.page-blog-how-to-contact-u888-customer-service__channel-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-blog-how-to-contact-u888-customer-service__channel-title {
  font-size: 1.5em;
  color: var(--text-main);
  margin-bottom: 10px;
}

.page-blog-how-to-contact-u888-customer-service__channel-description {
  font-size: 1em;
  color: var(--text-secondary);
}

.page-blog-how-to-contact-u888-customer-service__guide-section {
  padding: 60px 0;
}

.page-blog-how-to-contact-u888-customer-service__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog-how-to-contact-u888-customer-service__step-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border);
}

.page-blog-how-to-contact-u888-customer-service__step-title {
  font-size: 1.4em;
  color: var(--glow);
  margin-bottom: 15px;
}

.page-blog-how-to-contact-u888-customer-service__step-description {
  font-size: 1em;
  color: var(--text-secondary);
}

.page-blog-how-to-contact-u888-customer-service__image-full-width {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 50px;
  border-radius: 10px;
  object-fit: cover;
}

.page-blog-how-to-contact-u888-customer-service__common-issues {
  padding: 60px 0;
}

.page-blog-how-to-contact-u888-customer-service__issue-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-blog-how-to-contact-u888-customer-service__issue-item {
  background-color: var(--nen-tong);
  border-radius: 10px;
  padding: 25px;
  margin-bottom: 20px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border);
}

.page-blog-how-to-contact-u888-customer-service__issue-title {
  font-size: 1.3em;
  color: var(--text-main);
  margin-bottom: 10px;
}

.page-blog-how-to-contact-u888-customer-service__issue-description {
  font-size: 1em;
  color: var(--text-secondary);
}

.page-blog-how-to-contact-u888-customer-service__benefits-section {
  padding: 60px 0;
}

.page-blog-how-to-contact-u888-customer-service__benefit-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-blog-how-to-contact-u888-customer-service__benefit-item {
  background-color: var(--card-bg);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  border-left: 5px solid var(--glow);
  color: var(--text-main);
}

.page-blog-how-to-contact-u888-customer-service__benefit-item strong {
  color: var(--gold);
}

.page-blog-how-to-contact-u888-customer-service__faq-section {
  padding: 60px 0;
}

.page-blog-how-to-contact-u888-customer-service__faq-list {
  margin-top: 40px;
}

.page-blog-how-to-contact-u888-customer-service__faq-item {
  background-color: var(--nen-tong);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main);
}

.page-blog-how-to-contact-u888-customer-service__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.2em;
  color: var(--text-main);
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--divider);
}

.page-blog-how-to-contact-u888-customer-service__faq-item[open] .page-blog-how-to-contact-u888-customer-service__faq-question {
    border-bottom: 1px solid var(--glow);
}

.page-blog-how-to-contact-u888-customer-service__faq-question::-webkit-details-marker {
  display: none;
}

.page-blog-how-to-contact-u888-customer-service__faq-question::marker {
  display: none;
}

.page-blog-how-to-contact-u888-customer-service__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  color: var(--glow);
  margin-left: 10px;
}

.page-blog-how-to-contact-u888-customer-service__faq-item[open] .page-blog-how-to-contact-u888-customer-service__faq-toggle {
  content: '−';
}

.page-blog-how-to-contact-u888-customer-service__faq-answer {
  padding: 20px;
  font-size: 1em;
  color: var(--text-secondary);
}

.page-blog-how-to-contact-u888-customer-service__faq-answer p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.page-blog-how-to-contact-u888-customer-service__faq-answer a {
    color: var(--glow);
    text-decoration: none;
    font-weight: bold;
}

.page-blog-how-to-contact-u888-customer-service__faq-answer a:hover {
    text-decoration: underline;
}

.page-blog-how-to-contact-u888-customer-service__image-center {
  display: block;
  margin: 40px auto 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  object-fit: cover;
}

.page-blog-how-to-contact-u888-customer-service__conclusion-section {
  padding: 60px 0;
  text-align: center;
}

/* Responsive styles */
@media (max-width: 768px) {
  .page-blog-how-to-contact-u888-customer-service {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-blog-how-to-contact-u888-customer-service__hero-section {
    padding-top: 10px !important;
    padding-bottom: 20px;
  }

  .page-blog-how-to-contact-u888-customer-service__hero-content {
    margin-top: 20px;
    padding: 15px;
  }

  .page-blog-how-to-contact-u888-customer-service__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
  }

  .page-blog-how-to-contact-u888-customer-service__hero-description {
    font-size: clamp(1em, 3.5vw, 1.1em);
  }

  .page-blog-how-to-contact-u888-customer-service__cta-button {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
    font-size: 1em;
  }

  .page-blog-how-to-contact-u888-customer-service__cta-button--large {
      font-size: 1.1em;
      padding: 15px 25px;
  }

  .page-blog-how-to-contact-u888-customer-service__section-title {
    font-size: clamp(1.5em, 5vw, 2em);
  }

  .page-blog-how-to-contact-u888-customer-service__text-block {
    font-size: 0.95em;
  }

  .page-blog-how-to-contact-u888-customer-service__channels-grid,
  .page-blog-how-to-contact-u888-customer-service__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-blog-how-to-contact-u888-customer-service__channel-card,
  .page-blog-how-to-contact-u888-customer-service__step-item,
  .page-blog-how-to-contact-u888-customer-service__issue-item,
  .page-blog-how-to-contact-u888-customer-service__benefit-item,
  .page-blog-how-to-contact-u888-customer-service__faq-item {
    padding: 20px;
  }

  .page-blog-how-to-contact-u888-customer-service__channel-title,
  .page-blog-how-to-contact-u888-customer-service__step-title,
  .page-blog-how-to-contact-u888-customer-service__issue-title {
    font-size: 1.2em;
  }

  .page-blog-how-to-contact-u888-customer-service__channel-icon {
    width: 80px;
    height: 80px;
  }

  .page-blog-how-to-contact-u888-customer-service__faq-question {
    font-size: 1em;
    padding: 15px;
  }

  .page-blog-how-to-contact-u888-customer-service__faq-answer {
    padding: 15px;
  }

  .page-blog-how-to-contact-u888-customer-service img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-blog-how-to-contact-u888-customer-service__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .page-blog-how-to-contact-u888-customer-service__channels-grid,
  .page-blog-how-to-contact-u888-customer-service__guide-steps {
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      overflow: hidden !important;
  }

  .page-blog-how-to-contact-u888-customer-service__cta-buttons {
      display: flex;
      flex-direction: column;
      gap: 10px;
      max-width: 100% !important;
      width: 100% !important;
      box-sizing: border-box !important;
      padding-left: 15px;
      padding-right: 15px;
      overflow: hidden !important;
  }

  .page-blog-how-to-contact-u888-customer-service__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset */
  }
}