.page-blog-huong-dan-dang-ky-bj27 {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light body background */
  background-color: #FFFFFF;
}

.page-blog-huong-dan-dang-ky-bj27__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-blog-huong-dan-dang-ky-bj27__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, body handles main offset */
  margin-bottom: 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-blog-huong-dan-dang-ky-bj27__hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  max-width: 1920px;
  aspect-ratio: 16/9;
}

.page-blog-huong-dan-dang-ky-bj27__hero-content {
  padding: 30px 20px;
  background: linear-gradient(to bottom, rgba(38, 169, 224, 0.9), rgba(38, 169, 224, 0.7));
  color: #FFFFFF;
  margin-top: -80px; /* Overlap slightly for visual effect, but text is below image */
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 800px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-blog-huong-dan-dang-ky-bj27__main-title {
  font-size: 2.8em;
  font-weight: bold;
  line-height: 1.2;
  margin-bottom: 15px;
  color: #FFFFFF;
}

.page-blog-huong-dan-dang-ky-bj27__hero-description {
  font-size: 1.2em;
  margin-bottom: 25px;
}

.page-blog-huong-dan-dang-ky-bj27__section-title {
  font-size: 2.2em;
  color: #26A9E0;
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-blog-huong-dan-dang-ky-bj27__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog-huong-dan-dang-ky-bj27__btn-primary,
.page-blog-huong-dan-dang-ky-bj27__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog-huong-dan-dang-ky-bj27__btn-primary {
  background-color: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
}

.page-blog-huong-dan-dang-ky-bj27__btn-primary:hover {
  background-color: #1a8cc2;
  border-color: #1a8cc2;
}

.page-blog-huong-dan-dang-ky-bj27__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-blog-huong-dan-dang-ky-bj27__btn-secondary:hover {
  background-color: #e0f2f7;
  color: #1a8cc2;
  border-color: #1a8cc2;
}

.page-blog-huong-dan-dang-ky-bj27__why-register-section,
.page-blog-huong-dan-dang-ky-bj27__registration-guide-section,
.page-blog-huong-dan-dang-ky-bj27__faq-section,
.page-blog-huong-dan-dang-ky-bj27__tips-section,
.page-blog-huong-dan-dang-ky-bj27__conclusion-section {
  padding: 60px 0;
}

.page-blog-huong-dan-dang-ky-bj27__why-register-section {
  background-color: #f8f8f8;
}

.page-blog-huong-dan-dang-ky-bj27__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-bj27__feature-card {
  background-color: #FFFFFF;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition: transform 0.3s ease;
}

.page-blog-huong-dan-dang-ky-bj27__feature-card:hover {
  transform: translateY(-5px);
}

.page-blog-huong-dan-dang-ky-bj27__feature-title {
  font-size: 1.5em;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-bj27__feature-text {
  font-size: 1em;
  color: #555555;
}

.page-blog-huong-dan-dang-ky-bj27__step-by-step {
  display: grid;
  grid-template-columns: 1fr;
  gap: 60px;
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-bj27__step-card {
  background-color: #FFFFFF;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  text-align: center;
}

.page-blog-huong-dan-dang-ky-bj27__step-title {
  font-size: 1.8em;
  color: #000000;
  margin-bottom: 25px;
  position: relative;
}

.page-blog-huong-dan-dang-ky-bj27__step-title::before {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: -10px;
  width: 60px;
  height: 4px;
  background-color: #26A9E0;
  border-radius: 2px;
}

.page-blog-huong-dan-dang-ky-bj27__step-image {
  width: 100%;
  height: auto;
  object-fit: contain;
  margin-bottom: 25px;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  display: block;
}

.page-blog-huong-dan-dang-ky-bj27__step-text {
  font-size: 1.1em;
  color: #444444;
  margin-bottom: 20px;
  text-align: left;
}

.page-blog-huong-dan-dang-ky-bj27__info-list {
  list-style-type: disc;
  text-align: left;
  margin: 20px 0 20px 20px;
  color: #444444;
}

.page-blog-huong-dan-dang-ky-bj27__info-list li {
  margin-bottom: 10px;
  font-size: 1.05em;
}

.page-blog-huong-dan-dang-ky-bj27__faq-section {
  background-color: #f0f8ff;
}

.page-blog-huong-dan-dang-ky-bj27__faq-list {
  margin-top: 40px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog-huong-dan-dang-ky-bj27__faq-item {
  background-color: #FFFFFF;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.page-blog-huong-dan-dang-ky-bj27__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  color: #000000;
  cursor: pointer;
  background-color: #e6f7ff;
  border-bottom: 1px solid #d0e8f2;
  list-style: none;
  -webkit-touch-callout: none; /* iOS Safari */
  -webkit-user-select: none; /* Safari */
  -khtml-user-select: none; /* Konqueror HTML */
  -moz-user-select: none; /* Old versions of Firefox */
  -ms-user-select: none; /* Internet Explorer/Edge */
  user-select: none; /* Non-prefixed version, currently supported by Chrome, Edge, Opera and Firefox */
}

.page-blog-huong-dan-dang-ky-bj27__faq-question::-webkit-details-marker {
  display: none;
}

.page-blog-huong-dan-dang-ky-bj27__faq-item[open] .page-blog-huong-dan-dang-ky-bj27__faq-question {
  background-color: #d0e8f2;
}

.page-blog-huong-dan-dang-ky-bj27__faq-item[open] .page-blog-huong-dan-dang-ky-bj27__faq-toggle {
  content: "-";
  transform: rotate(45deg);
}

.page-blog-huong-dan-dang-ky-bj27__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
  color: #26A9E0;
}

.page-blog-huong-dan-dang-ky-bj27__faq-answer {
  padding: 20px 25px;
  font-size: 1.05em;
  color: #555555;
  background-color: #FFFFFF;
  border-top: 1px solid #e0e0e0;
}

.page-blog-huong-dan-dang-ky-bj27__btn-contact-support {
  margin-top: 30px;
  display: block;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

.page-blog-huong-dan-dang-ky-bj27__tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-bj27__tip-card {
  background-color: #FFFFFF;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition: transform 0.3s ease;
}

.page-blog-huong-dan-dang-ky-bj27__tip-card:hover {
  transform: translateY(-5px);
}

.page-blog-huong-dan-dang-ky-bj27__tip-title {
  font-size: 1.5em;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-bj27__tip-text {
  font-size: 1em;
  color: #555555;
  margin-bottom: 20px;
}

.page-blog-huong-dan-dang-ky-bj27__tip-image {
  width: 100%;
  height: auto;
  object-fit: contain;
  margin-bottom: 20px;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  display: block;
}

/* General image and button responsiveness */
.page-blog-huong-dan-dang-ky-bj27 img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-blog-huong-dan-dang-ky-bj27__section,
.page-blog-huong-dan-dang-ky-bj27__card,
.page-blog-huong-dan-dang-ky-bj27__container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .page-blog-huong-dan-dang-ky-bj27 {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-blog-huong-dan-dang-ky-bj27__hero-section {
    margin-bottom: 20px;
  }

  .page-blog-huong-dan-dang-ky-bj27__hero-image {
    aspect-ratio: 4/3;
  }

  .page-blog-huong-dan-dang-ky-bj27__hero-content {
    padding: 20px 15px;
    margin-top: -50px;
  }

  .page-blog-huong-dan-dang-ky-bj27__main-title {
    font-size: 2em;
  }

  .page-blog-huong-dan-dang-ky-bj27__hero-description {
    font-size: 1em;
  }

  .page-blog-huong-dan-dang-ky-bj27__section-title {
    font-size: 1.8em;
  }

  .page-blog-huong-dan-dang-ky-bj27__section-description {
    font-size: 0.95em;
    margin-bottom: 20px;
  }

  .page-blog-huong-dan-dang-ky-bj27__btn-primary,
  .page-blog-huong-dan-dang-ky-bj27__btn-secondary,
  .page-blog-huong-dan-dang-ky-bj27 a[class*="button"],
  .page-blog-huong-dan-dang-ky-bj27 a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
    display: block;
    margin-bottom: 10px; /* Add space between stacked buttons */
  }

  .page-blog-huong-dan-dang-ky-bj27__why-register-section,
  .page-blog-huong-dan-dang-ky-bj27__registration-guide-section,
  .page-blog-huong-dan-dang-ky-bj27__faq-section,
  .page-blog-huong-dan-dang-ky-bj27__tips-section,
  .page-blog-huong-dan-dang-ky-bj27__conclusion-section {
    padding: 30px 0;
  }

  .page-blog-huong-dan-dang-ky-bj27__features-grid,
  .page-blog-huong-dan-dang-ky-bj27__tips-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-blog-huong-dan-dang-ky-bj27__feature-card,
  .page-blog-huong-dan-dang-ky-bj27__tip-card {
    padding: 20px;
  }

  .page-blog-huong-dan-dang-ky-bj27__step-by-step {
    gap: 30px;
  }

  .page-blog-huong-dan-dang-ky-bj27__step-card {
    padding: 20px;
  }

  .page-blog-huong-dan-dang-ky-bj27__step-title {
    font-size: 1.5em;
    margin-bottom: 20px;
  }

  .page-blog-huong-dan-dang-ky-bj27__step-image {
    margin-bottom: 15px;
  }

  .page-blog-huong-dan-dang-ky-bj27__step-text {
    font-size: 1em;
  }

  .page-blog-huong-dan-dang-ky-bj27__info-list {
    margin-left: 15px;
  }

  .page-blog-huong-dan-dang-ky-bj27__faq-question {
    padding: 15px 20px;
    font-size: 1.1em;
  }

  .page-blog-huong-dan-dang-ky-bj27__faq-answer {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-blog-huong-dan-dang-ky-bj27__btn-contact-support {
    margin-top: 20px;
  }
  
  /* Image overflow prevention */
  .page-blog-huong-dan-dang-ky-bj27 img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-blog-huong-dan-dang-ky-bj27__hero-section,
  .page-blog-huong-dan-dang-ky-bj27__why-register-section,
  .page-blog-huong-dan-dang-ky-bj27__registration-guide-section,
  .page-blog-huong-dan-dang-ky-bj27__faq-section,
  .page-blog-huong-dan-dang-ky-bj27__tips-section,
  .page-blog-huong-dan-dang-ky-bj27__conclusion-section,
  .page-blog-huong-dan-dang-ky-bj27__container,
  .page-blog-huong-dan-dang-ky-bj27__feature-card,
  .page-blog-huong-dan-dang-ky-bj27__step-card,
  .page-blog-huong-dan-dang-ky-bj27__faq-item,
  .page-blog-huong-dan-dang-ky-bj27__tip-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-blog-huong-dan-dang-ky-bj27__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
}

/* No hero carousel or guide box on this page, so no specific media queries for them */
/* No home_content box, so no specific media queries for it */
/* No blog grid on this page, so no specific media queries for it */