.page-blog-khuyen-mai-chao-mung-123b {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: #FFFFFF; /* Explicitly set for clarity */
}

.page-blog-khuyen-mai-chao-mung-123b__hero-section {
  text-align: center;
  padding-bottom: 40px;
  background-color: #f0f0f0;
  padding-top: 10px; /* Small top padding, relying on body for header offset */
}

.page-blog-khuyen-mai-chao-mung-123b__hero-image-wrapper {
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 20px;
}

.page-blog-khuyen-mai-chao-mung-123b__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-blog-khuyen-mai-chao-mung-123b__main-title {
  color: #017439;
  font-size: clamp(2em, 4vw, 3.5em);
  margin-bottom: 15px;
  font-weight: 700;
  line-height: 1.2;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog-khuyen-mai-chao-mung-123b__hero-description {
  font-size: 1.2em;
  color: #555555;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.page-blog-khuyen-mai-chao-mung-123b__hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0 15px;
}

.page-blog-khuyen-mai-chao-mung-123b__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-blog-khuyen-mai-chao-mung-123b__btn--primary {
  background-color: #017439;
  color: #ffffff;
  border: 2px solid #017439;
}

.page-blog-khuyen-mai-chao-mung-123b__btn--primary:hover {
  background-color: #005f2c;
  border-color: #005f2c;
}

.page-blog-khuyen-mai-chao-mung-123b__btn--secondary {
  background-color: #ffffff;
  color: #017439;
  border: 2px solid #017439;
}

.page-blog-khuyen-mai-chao-mung-123b__btn--secondary:hover {
  background-color: #e0e0e0;
}

.page-blog-khuyen-mai-chao-mung-123b__content-section {
  padding: 50px 0;
  background-color: #ffffff;
}

.page-blog-khuyen-mai-chao-mung-123b__article-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-blog-khuyen-mai-chao-mung-123b__section-title {
  color: #017439;
  font-size: 2.2em;
  margin-top: 40px;
  margin-bottom: 20px;
  font-weight: 600;
  line-height: 1.3;
}

.page-blog-khuyen-mai-chao-mung-123b__article-content p {
  margin-bottom: 15px;
  font-size: 1.1em;
  line-height: 1.7;
  color: #333333;
}

.page-blog-khuyen-mai-chao-mung-123b__promo-box {
  background-color: #f9f9f9;
  border: 1px solid #e0e0e0;
  padding: 30px;
  border-radius: 10px;
  margin-top: 30px;
  margin-bottom: 40px;
}

.page-blog-khuyen-mai-chao-mung-123b__promo-title {
  color: #017439;
  font-size: 1.5em;
  margin-top: 25px;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-blog-khuyen-mai-chao-mung-123b__figure {
  margin: 30px 0;
  text-align: center;
}

.page-blog-khuyen-mai-chao-mung-123b__image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin: 0 auto;
  object-fit: cover;
}

.page-blog-khuyen-mai-chao-mung-123b__figcaption {
  font-size: 0.9em;
  color: #777777;
  margin-top: 10px;
}

.page-blog-khuyen-mai-chao-mung-123b__registration-guide {
  margin-top: 30px;
  margin-bottom: 40px;
  background-color: #e6f7ed; /* Light green background */
  border-left: 5px solid #017439;
  padding: 30px;
  border-radius: 10px;
}

.page-blog-khuyen-mai-chao-mung-123b__step-title {
  color: #017439;
  font-size: 1.4em;
  margin-top: 20px;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-blog-khuyen-mai-chao-mung-123b__btn--full-width {
  width: 100%;
  margin-top: 30px;
  padding: 15px 25px;
  font-size: 1.1em;
}

.page-blog-khuyen-mai-chao-mung-123b__benefits-list,
.page-blog-khuyen-mai-chao-mung-123b__terms-list,
.page-blog-khuyen-mai-chao-mung-123b__tips-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 20px;
}

.page-blog-khuyen-mai-chao-mung-123b__benefits-list li,
.page-blog-khuyen-mai-chao-mung-123b__terms-list li,
.page-blog-khuyen-mai-chao-mung-123b__tips-list li {
  background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 24 24" fill="none" stroke="%23017439" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><polyline points="20 6 9 17 4 12"></polyline></svg>') no-repeat left 8px center;
  background-size: 18px;
  padding-left: 30px;
  margin-bottom: 10px;
  font-size: 1.05em;
  color: #333333;
}

.page-blog-khuyen-mai-chao-mung-123b__benefits-list li strong {
  color: #017439;
}

.page-blog-khuyen-mai-chao-mung-123b__faq-item {
  margin-bottom: 20px;
  border-bottom: 1px solid #eee;
  padding-bottom: 15px;
}

.page-blog-khuyen-mai-chao-mung-123b__faq-question {
  font-size: 1.3em;
  color: #017439;
  cursor: pointer;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-blog-khuyen-mai-chao-mung-123b__faq-answer {
  font-size: 1.05em;
  color: #555555;
  padding-left: 20px;
}

.page-blog-khuyen-mai-chao-mung-123b__final-cta-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 50px;
  flex-wrap: wrap;
  max-width: 100%;
  box-sizing: border-box;
  padding: 0 15px;
}

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

@media (max-width: 1024px) {
  .page-blog-khuyen-mai-chao-mung-123b__main-title {
    font-size: clamp(1.8em, 5vw, 3em);
  }
  .page-blog-khuyen-mai-chao-mung-123b__hero-description {
    font-size: 1.1em;
    padding: 0 15px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__section-title {
    font-size: 2em;
  }
  .page-blog-khuyen-mai-chao-mung-123b__article-wrap {
    padding: 0 15px;
  }
}

@media (max-width: 768px) {
  /* 1. 顶区标题 + 双 CTA */
  .page-blog-khuyen-mai-chao-mung-123b__hero-section {
    padding-top: 10px !important; /* Small top padding, relying on body for header offset */
    padding-bottom: 30px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__main-title {
    font-size: clamp(1.6em, 6vw, 2.5em);
    margin-bottom: 10px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__hero-description {
    font-size: 1em;
    margin-bottom: 20px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__hero-cta-group,
  .page-blog-khuyen-mai-chao-mung-123b__final-cta-group {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
  }
  .page-blog-khuyen-mai-chao-mung-123b__btn {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  /* 2. 单栏长文容器 */
  .page-blog-khuyen-mai-chao-mung-123b__content-section {
    padding: 30px 0;
  }
  .page-blog-khuyen-mai-chao-mung-123b__article-wrap {
    padding: 0 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog-khuyen-mai-chao-mung-123b__section-title {
    font-size: 1.8em;
    margin-top: 30px;
    margin-bottom: 15px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__article-content p {
    font-size: 1em;
  }
  .page-blog-khuyen-mai-chao-mung-123b__promo-box,
  .page-blog-khuyen-mai-chao-mung-123b__registration-guide {
    padding: 20px;
    margin-top: 20px;
    margin-bottom: 30px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog-khuyen-mai-chao-mung-123b__promo-title {
    font-size: 1.3em;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  /* 3. 通用图片与 figure */
  .page-blog-khuyen-mai-chao-mung-123b img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-blog-khuyen-mai-chao-mung-123b__figure {
    margin: 20px 0;
  }
  .page-blog-khuyen-mai-chao-mung-123b__figcaption {
    font-size: 0.85em;
  }

  /* 4. 按钮与按钮容器 (already covered in hero-cta-group) */
  .page-blog-khuyen-mai-chao-mung-123b__btn--full-width {
    padding: 12px 15px;
    font-size: 1em;
  }

  /* 5. 注册教程与 FAQ 区块 */
  .page-blog-khuyen-mai-chao-mung-123b__step-title {
    font-size: 1.2em;
  }
  .page-blog-khuyen-mai-chao-mung-123b__benefits-list li,
  .page-blog-khuyen-mai-chao-mung-123b__terms-list li,
  .page-blog-khuyen-mai-chao-mung-123b__tips-list li {
    font-size: 1em;
    padding-left: 25px;
    background-size: 16px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__faq-item {
    padding-bottom: 10px;
  }
  .page-blog-khuyen-mai-chao-mung-123b__faq-question {
    font-size: 1.15em;
  }
  .page-blog-khuyen-mai-chao-mung-123b__faq-answer {
    font-size: 1em;
    padding-left: 15px;
  }
}