.page-index-cac-tinh-nang-noi-bat {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #1F2D3D; /* Text Main */
  background-color: #F4F7FB; /* Background */
}

.page-index-cac-tinh-nang-noi-bat__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding */
  padding-bottom: 40px;
  text-align: center;
  background-color: #F4F7FB;
}

.page-index-cac-tinh-nang-noi-bat__hero-image-wrapper {
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 20px;
}

.page-index-cac-tinh-nang-noi-bat__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-index-cac-tinh-nang-noi-bat__hero-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-index-cac-tinh-nang-noi-bat__main-title {
  font-size: clamp(2em, 4vw, 2.8em);
  color: #1F2D3D; /* Text Main */
  margin-bottom: 15px;
  font-weight: bold;
  line-height: 1.2;
}

.page-index-cac-tinh-nang-noi-bat__hero-description {
  font-size: 1.1em;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-index-cac-tinh-nang-noi-bat__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-index-cac-tinh-nang-noi-bat__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index-cac-tinh-nang-noi-bat__btn--primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 10px rgba(47, 107, 255, 0.3);
}

.page-index-cac-tinh-nang-noi-bat__btn--primary:hover {
  background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
  box-shadow: 0 6px 15px rgba(47, 107, 255, 0.4);
}

.page-index-cac-tinh-nang-noi-bat__btn--secondary {
  background-color: #ffffff;
  color: #2F6BFF;
  border: 2px solid #2F6BFF;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-index-cac-tinh-nang-noi-bat__btn--secondary:hover {
  background-color: #F4F7FB;
  color: #2F6BFF;
  border-color: #4A8BFF;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.15);
}

.page-index-cac-tinh-nang-noi-bat__btn--text {
  background: none;
  color: #2F6BFF;
  border: none;
  padding: 8px 0;
  font-size: 1em;
  text-decoration: underline;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index-cac-tinh-nang-noi-bat__btn--text:hover {
  color: #4A8BFF;
}

.page-index-cac-tinh-nang-noi-bat__section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-index-cac-tinh-nang-noi-bat__section-title {
  font-size: 2.2em;
  color: #1F2D3D; /* Text Main */
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
}

.page-index-cac-tinh-nang-noi-bat__text-block {
  font-size: 1.05em;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 30px;
  text-align: justify;
}

.page-index-cac-tinh-nang-noi-bat__image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  margin-top: 30px;
  margin-bottom: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-index-cac-tinh-nang-noi-bat__image--full-width {
  max-width: 100%;
  width: 100%;
}

.page-index-cac-tinh-nang-noi-bat__feature-grid,
.page-index-cac-tinh-nang-noi-bat__advantage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-index-cac-tinh-nang-noi-bat__feature-card,
.page-index-cac-tinh-nang-noi-bat__advantage-item {
  background-color: #ffffff; /* Card BG */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-cac-tinh-nang-noi-bat__feature-card:hover,
.page-index-cac-tinh-nang-noi-bat__advantage-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.page-index-cac-tinh-nang-noi-bat__card-title,
.page-index-cac-tinh-nang-noi-bat__advantage-title {
  font-size: 1.5em;
  color: #2F6BFF;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-index-cac-tinh-nang-noi-bat__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.page-index-cac-tinh-nang-noi-bat__card-description,
.page-index-cac-tinh-nang-noi-bat__advantage-description {
  font-size: 1em;
  color: #1F2D3D; /* Text Main */
  margin-bottom: 20px;
  flex-grow: 1;
  text-align: justify;
}

/* Ensure buttons within cards are at the bottom */
.page-index-cac-tinh-nang-noi-bat__feature-card .page-index-cac-tinh-nang-noi-bat__btn,
.page-index-cac-tinh-nang-noi-bat__advantage-item .page-index-cac-tinh-nang-noi-bat__btn {
  margin-top: auto; /* Pushes the button to the bottom */
  align-self: center;
}

.page-index-cac-tinh-nang-noi-bat__section--cta-bottom {
  text-align: center;
  padding-bottom: 80px;
}

/* Mobile responsiveness */
@media (max-width: 1024px) {
  .page-index-cac-tinh-nang-noi-bat__main-title {
    font-size: clamp(1.8em, 5vw, 2.5em);
  }
  .page-index-cac-tinh-nang-noi-bat__hero-description {
    font-size: 1em;
  }
  .page-index-cac-tinh-nang-noi-bat__section-title {
    font-size: 2em;
  }
  .page-index-cac-tinh-nang-noi-bat__feature-grid,
  .page-index-cac-tinh-nang-noi-bat__advantage-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .page-index-cac-tinh-nang-noi-bat {
    font-size: 16px;
    line-height: 1.6;
  }

  /* 1. 顶区标题 + 双 CTA */
  .page-index-cac-tinh-nang-noi-bat__hero-section {
    padding-top: 10px !important;
    padding-bottom: 30px;
  }
  .page-index-cac-tinh-nang-noi-bat__main-title {
    font-size: clamp(1.5em, 6vw, 2.2em);
    margin-bottom: 10px;
  }
  .page-index-cac-tinh-nang-noi-bat__hero-description {
    font-size: 0.95em;
    margin-bottom: 20px;
  }
  .page-index-cac-tinh-nang-noi-bat__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index-cac-tinh-nang-noi-bat__btn {
    padding: 10px 20px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  /* 2. 单栏长文容器 */
  .page-index-cac-tinh-nang-noi-bat__section {
    padding: 40px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-index-cac-tinh-nang-noi-bat__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }
  .page-index-cac-tinh-nang-noi-bat__text-block {
    font-size: 1em;
    margin-bottom: 20px;
  }

  /* 3. 通用图片与 figure */
  .page-index-cac-tinh-nang-noi-bat img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    margin-left: auto;
    margin-right: auto;
    border-radius: 6px;
  }
  .page-index-cac-tinh-nang-noi-bat__hero-image-wrapper,
  .page-index-cac-tinh-nang-noi-bat__feature-card,
  .page-index-cac-tinh-nang-noi-bat__advantage-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index-cac-tinh-nang-noi-bat__card-image {
    height: 180px;
  }

  /* 4. 按钮与按钮容器 (already covered above with __cta-buttons and __btn) */
  .page-index-cac-tinh-nang-noi-bat__feature-card .page-index-cac-tinh-nang-noi-bat__btn,
  .page-index-cac-tinh-nang-noi-bat__advantage-item .page-index-cac-tinh-nang-noi-bat__btn {
    width: auto; /* Allow text buttons to be smaller */
    padding: 8px 15px;
    font-size: 0.9em;
  }
  .page-index-cac-tinh-nang-noi-bat__feature-grid,
  .page-index-cac-tinh-nang-noi-bat__advantage-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  /* 5. 注册教程与 FAQ 区块 (N/A for this page, but structure provided for completeness if content was different) */
  /* If there were specific .page-index-cac-tinh-nang-noi-bat__faq-item or .page-index-cac-tinh-nang-noi-bat__tutorial-step, rules would go here. */
  /* For now, general text-block and card styles cover readability. */
}

/* Color Contrast Fixes (if needed, applied automatically) */
.page-index-cac-tinh-nang-noi-bat__dark-section {
  background: #2F6BFF;
  color: #ffffff;
}
.page-index-cac-tinh-nang-noi-bat__text-contrast-fix {
  color: #333333 !important;
  text-shadow: none !important;
}