.page-blog-huong-dan-dang-ky-alo789 {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF6D6; /* Text Main */
  background-color: #0A0A0A; /* Background */
}

.page-blog-huong-dan-dang-ky-alo789__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page-blog-huong-dan-dang-ky-alo789__hero-section {
  padding-top: 10px; /* Small top padding for hero */
  background-color: #0A0A0A;
  color: #FFF6D6;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-bottom: 40px;
}

.page-blog-huong-dan-dang-ky-alo789__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 20px;
}

.page-blog-huong-dan-dang-ky-alo789__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-blog-huong-dan-dang-ky-alo789__hero-content {
  max-width: 900px;
  padding: 0 20px;
}

.page-blog-huong-dan-dang-ky-alo789__main-title {
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #FFD36B; /* Glow */
  margin-bottom: 15px;
  font-size: clamp(2em, 4vw, 3.5em);
}

.page-blog-huong-dan-dang-ky-alo789__intro-text {
  font-size: 1.1em;
  margin-bottom: 30px;
}

.page-blog-huong-dan-dang-ky-alo789__button-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.page-blog-huong-dan-dang-ky-alo789__button-group--small {
  gap: 10px;
  margin-top: 15px;
}

.page-blog-huong-dan-dang-ky-alo789__button-group--center {
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-alo789__btn-primary,
.page-blog-huong-dan-dang-ky-alo789 a[class*="btn-primary"] {
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #111111;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: transform 0.2s ease;
  border: none;
  cursor: pointer;
  display: inline-block;
  text-align: center;
}

.page-blog-huong-dan-dang-ky-alo789__btn-primary:hover,
.page-blog-huong-dan-dang-ky-alo789 a[class*="btn-primary"]:hover {
  transform: translateY(-2px);
}

.page-blog-huong-dan-dang-ky-alo789__btn-secondary,
.page-blog-huong-dan-dang-ky-alo789 a[class*="btn-secondary"] {
  background-color: transparent;
  color: #FFD36B;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.2s ease, color 0.2s ease;
  border: 2px solid #FFD36B;
  cursor: pointer;
  display: inline-block;
  text-align: center;
}

.page-blog-huong-dan-dang-ky-alo789__btn-secondary:hover,
.page-blog-huong-dan-dang-ky-alo789 a[class*="btn-secondary"]:hover {
  background-color: #FFD36B;
  color: #111111;
}

.page-blog-huong-dan-dang-ky-alo789__btn-link {
  color: #FFD36B;
  text-decoration: underline;
  font-weight: bold;
  transition: color 0.2s ease;
}

.page-blog-huong-dan-dang-ky-alo789__btn-link:hover {
  color: #F2C14E;
}

.page-blog-huong-dan-dang-ky-alo789__btn-outline {
  background-color: transparent;
  color: #FFD36B;
  padding: 8px 15px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  border: 1px solid #FFD36B;
  transition: background-color 0.2s ease, color 0.2s ease;
  display: inline-block;
  text-align: center;
}

.page-blog-huong-dan-dang-ky-alo789__btn-outline:hover {
  background-color: #FFD36B;
  color: #111111;
}

.page-blog-huong-dan-dang-ky-alo789__content-wrapper {
  padding: 60px 0;
}

.page-blog-huong-dan-dang-ky-alo789__dark-bg {
  background-color: #111111; /* Card BG */
  color: #FFF6D6;
}

.page-blog-huong-dan-dang-ky-alo789__light-bg {
  background-color: #0A0A0A;
  color: #FFF6D6;
}

.page-blog-huong-dan-dang-ky-alo789__section-title {
  font-size: 2.5em;
  color: #F2C14E; /* Main Color */
  text-align: center;
  margin-bottom: 30px;
  font-weight: bold;
}

.page-blog-huong-dan-dang-ky-alo789__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
}

.page-blog-huong-dan-dang-ky-alo789__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-blog-huong-dan-dang-ky-alo789__step-item {
  background-color: #0A0A0A;
  border: 1px solid #3A2A12;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-blog-huong-dan-dang-ky-alo789__step-title {
  font-size: 1.6em;
  color: #FFD36B;
  margin-bottom: 20px;
}

.page-blog-huong-dan-dang-ky-alo789__step-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 1px solid #3A2A12;
}

.page-blog-huong-dan-dang-ky-alo789__step-text {
  font-size: 1em;
  color: #FFF6D6;
  text-align: left;
  flex-grow: 1;
}

.page-blog-huong-dan-dang-ky-alo789__checklist {
  list-style-type: disc;
  padding-left: 20px;
  margin-top: 10px;
}

.page-blog-huong-dan-dang-ky-alo789__checklist li {
  margin-bottom: 5px;
}

.page-blog-huong-dan-dang-ky-alo789__step-button {
  margin-top: 20px;
}

.page-blog-huong-dan-dang-ky-alo789__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog-huong-dan-dang-ky-alo789__benefit-item {
  background-color: #111111;
  border: 1px solid #3A2A12;
  border-radius: 10px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog-huong-dan-dang-ky-alo789__benefit-title {
  font-size: 1.4em;
  color: #F2C14E;
  margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-alo789__benefit-text {
  font-size: 1em;
  color: #FFF6D6;
  flex-grow: 1;
}

.page-blog-huong-dan-dang-ky-alo789__section-image {
  max-width: 800px;
  height: auto;
  display: block;
  margin: 50px auto 0 auto;
  border-radius: 10px;
  border: 1px solid #3A2A12;
}

.page-blog-huong-dan-dang-ky-alo789__troubleshooting-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog-huong-dan-dang-ky-alo789__troubleshooting-item {
  background-color: #0A0A0A;
  border: 1px solid #3A2A12;
  border-radius: 10px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog-huong-dan-dang-ky-alo789__troubleshooting-title {
  font-size: 1.4em;
  color: #FFD36B;
  margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-alo789__troubleshooting-text {
  font-size: 1em;
  color: #FFF6D6;
  flex-grow: 1;
}

.page-blog-huong-dan-dang-ky-alo789__troubleshooting-button {
  margin-top: 20px;
}

.page-blog-huong-dan-dang-ky-alo789__faq-list {
  margin-top: 50px;
}

.page-blog-huong-dan-dang-ky-alo789__faq-item {
  background-color: #111111;
  border: 1px solid #3A2A12;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-blog-huong-dan-dang-ky-alo789__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  font-size: 1.2em;
  font-weight: bold;
  color: #F2C14E;
  list-style: none;
}

.page-blog-huong-dan-dang-ky-alo789__faq-question::-webkit-details-marker {
  display: none;
}

.page-blog-huong-dan-dang-ky-alo789__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-blog-huong-dan-dang-ky-alo789__faq-item[open] .page-blog-huong-dan-dang-ky-alo789__faq-toggle {
  transform: rotate(45deg);
}

.page-blog-huong-dan-dang-ky-alo789__faq-answer {
  padding: 0 20px 20px 20px;
  font-size: 1em;
  color: #FFF6D6;
}

.page-blog-huong-dan-dang-ky-alo789__faq-answer p {
  margin-bottom: 10px;
}

.page-blog-huong-dan-dang-ky-alo789__faq-answer .page-blog-huong-dan-dang-ky-alo789__btn-primary {
  margin-top: 15px;
}

.page-blog-huong-dan-dang-ky-alo789__related-posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card {
  background-color: #0A0A0A;
  border: 1px solid #3A2A12;
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  border-bottom: 1px solid #3A2A12;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card-title {
  font-size: 1.3em;
  color: #F2C14E;
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card-title a {
  color: #F2C14E;
  text-decoration: none;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card-title a:hover {
  text-decoration: underline;
}

.page-blog-huong-dan-dang-ky-alo789__blog-card-text {
  font-size: 0.95em;
  color: #FFF6D6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-blog-huong-dan-dang-ky-alo789__cta-section {
  text-align: center;
  padding: 80px 0;
  background-color: #111111;
  color: #FFF6D6;
}

/* --- Responsive Styles --- */
@media (max-width: 1024px) {
  .page-blog-huong-dan-dang-ky-alo789__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }
  .page-blog-huong-dan-dang-ky-alo789__section-title {
    font-size: 2em;
  }
  .page-blog-huong-dan-dang-ky-alo789__container {
    padding: 20px 30px;
  }
  .page-blog-huong-dan-dang-ky-alo789__steps-grid,
  .page-blog-huong-dan-dang-ky-alo789__benefits-grid,
  .page-blog-huong-dan-dang-ky-alo789__troubleshooting-grid,
  .page-blog-huong-dan-dang-ky-alo789__related-posts-grid {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .page-blog-huong-dan-dang-ky-alo789 {
    font-size: 16px;
    line-height: 1.6;
  }
  .page-blog-huong-dan-dang-ky-alo789__hero-section {
    padding-top: 10px;
    padding-bottom: 30px;
  }
  .page-blog-huong-dan-dang-ky-alo789__hero-content {
    padding: 0 15px;
  }
  .page-blog-huong-dan-dang-ky-alo789__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em);
    margin-bottom: 10px;
  }
  .page-blog-huong-dan-dang-ky-alo789__intro-text {
    font-size: 1em;
    margin-bottom: 20px;
  }
  .page-blog-huong-dan-dang-ky-alo789__button-group {
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
    width: 100%;
    padding: 0 15px;
    box-sizing: border-box;
  }
  .page-blog-huong-dan-dang-ky-alo789__btn-primary,
  .page-blog-huong-dan-dang-ky-alo789__btn-secondary,
  .page-blog-huong-dan-dang-ky-alo789__btn-link,
  .page-blog-huong-dan-dang-ky-alo789 a[class*="button"],
  .page-blog-huong-dan-dang-ky-alo789 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;
  }
  .page-blog-huong-dan-dang-ky-alo789__button-group--small {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    padding: 0;
  }
  .page-blog-huong-dan-dang-ky-alo789__button-group--small .page-blog-huong-dan-dang-ky-alo789__btn-link {
    width: auto !important;
    max-width: calc(50% - 5px) !important;
    padding: 8px 10px;
    border: 1px solid #FFD36B;
    border-radius: 5px;
    text-align: center;
  }
  .page-blog-huong-dan-dang-ky-alo789__button-group--small .page-blog-huong-dan-dang-ky-alo789__btn-link:hover {
    background-color: #FFD36B;
    color: #111111;
  }
  .page-blog-huong-dan-dang-ky-alo789__content-wrapper {
    padding: 40px 0;
  }
  .page-blog-huong-dan-dang-ky-alo789__container {
    padding: 0 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-blog-huong-dan-dang-ky-alo789__section-title {
    font-size: 1.8em;
    margin-bottom: 20px;
  }
  .page-blog-huong-dan-dang-ky-alo789__section-description {
    font-size: 1em;
    margin-bottom: 30px;
  }
  .page-blog-huong-dan-dang-ky-alo789__steps-grid,
  .page-blog-huong-dan-dang-ky-alo789__benefits-grid,
  .page-blog-huong-dan-dang-ky-alo789__troubleshooting-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-blog-huong-dan-dang-ky-alo789__step-item,
  .page-blog-huong-dan-dang-ky-alo789__benefit-item,
  .page-blog-huong-dan-dang-ky-alo789__troubleshooting-item {
    padding: 20px;
  }
  .page-blog-huong-dan-dang-ky-alo789__step-image,
  .page-blog-huong-dan-dang-ky-alo789__section-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-blog-huong-dan-dang-ky-alo789__faq-question {
    font-size: 1.1em;
    padding: 15px;
  }
  .page-blog-huong-dan-dang-ky-alo789__faq-answer {
    padding: 0 15px 15px 15px;
  }
  .page-blog-huong-dan-dang-ky-alo789__related-posts-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-blog-huong-dan-dang-ky-alo789__blog-card-image {
    height: 180px;
  }
  .page-blog-huong-dan-dang-ky-alo789__blog-card-content {
    padding: 15px;
  }
  .page-blog-huong-dan-dang-ky-alo789__blog-card-title {
    font-size: 1.1em;
  }
  .page-blog-huong-dan-dang-ky-alo789__blog-card-text {
    font-size: 0.9em;
  }
  .page-blog-huong-dan-dang-ky-alo789__cta-section {
    padding: 50px 0;
  }
}