.page-ban-ca-bi-quyet-kiem-tien {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light backgrounds */
  background-color: var(--color-background, #f8f8f8); /* Inherit from shared or default light */
}

.page-ban-ca-bi-quyet-kiem-tien__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page-ban-ca-bi-quyet-kiem-tien__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, relying on body padding for header offset */
  padding-bottom: 40px;
  background: linear-gradient(180deg, #C91F17 0%, #E53935 100%); /* Brand colors */
  color: #FFF5E1; /* Text Main */
  position: relative;
  overflow: hidden;
}

.page-ban-ca-bi-quyet-kiem-tien__hero-content {
  z-index: 10;
  max-width: 900px;
  margin-bottom: 30px;
}

.page-ban-ca-bi-quyet-kiem-tien__main-title {
  font-size: clamp(2.5em, 5vw, 3.5em);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #FFF5E1;
}

.page-ban-ca-bi-quyet-kiem-tien__description {
  font-size: 1.2em;
  margin-bottom: 30px;
  color: #FFF5E1;
}

.page-ban-ca-bi-quyet-kiem-tien__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-ban-ca-bi-quyet-kiem-tien__btn-primary,
.page-ban-ca-bi-quyet-kiem-tien__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-ban-ca-bi-quyet-kiem-tien__btn-primary {
  background: linear-gradient(180deg, #FFD86A 0%, #E6B800 100%); /* Custom button gradient */
  color: #7A0E0E; /* Deep Red for contrast */
  border: 2px solid #F2B544; /* Border Gold */
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-ban-ca-bi-quyet-kiem-tien__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-ban-ca-bi-quyet-kiem-tien__btn-secondary {
  background: #B71C1C; /* Background color */
  color: #FFF5E1; /* Text Main */
  border: 2px solid #F2B544; /* Border Gold */
}

.page-ban-ca-bi-quyet-kiem-tien__btn-secondary:hover {
  background: #7A0E0E; /* Deep Red */
  transform: translateY(-3px);
}

.page-ban-ca-bi-quyet-kiem-tien__hero-image {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin-top: 30px;
}

.page-ban-ca-bi-quyet-kiem-tien__hero-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  object-fit: cover; /* Ensure image covers the area */
}

.page-ban-ca-bi-quyet-kiem-tien__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: #C91F17;
}

.page-ban-ca-bi-quyet-kiem-tien__intro-section,
.page-ban-ca-bi-quyet-kiem-tien__advantages-section,
.page-ban-ca-bi-quyet-kiem-tien__tips-section,
.page-ban-ca-bi-quyet-kiem-tien__advanced-strategies-section,
.page-ban-ca-bi-quyet-kiem-tien__faq-section {
  padding: 60px 0;
  background-color: #ffffff; /* Light background for content */
}

.page-ban-ca-bi-quyet-kiem-tien__intro-section p,
.page-ban-ca-bi-quyet-kiem-tien__advantages-section p,
.page-ban-ca-bi-quyet-kiem-tien__tips-section p,
.page-ban-ca-bi-quyet-kiem-tien__advanced-strategies-section p,
.page-ban-ca-bi-quyet-kiem-tien__faq-section p {
  font-size: 1.05em;
  margin-bottom: 15px;
  color: #333333;
}

.page-ban-ca-bi-quyet-kiem-tien__intro-section a,
.page-ban-ca-bi-quyet-kiem-tien__advantages-section a,
.page-ban-ca-bi-quyet-kiem-tien__tips-section a,
.page-ban-ca-bi-quyet-kiem-tien__advanced-strategies-section a,
.page-ban-ca-bi-quyet-kiem-tien__faq-section a {
  color: #C91F17;
  text-decoration: underline;
}

.page-ban-ca-bi-quyet-kiem-tien__intro-section a:hover,
.page-ban-ca-bi-quyet-kiem-tien__advantages-section a:hover,
.page-ban-ca-bi-quyet-kiem-tien__tips-section a:hover,
.page-ban-ca-bi-quyet-kiem-tien__advanced-strategies-section a:hover,
.page-ban-ca-bi-quyet-kiem-tien__faq-section a:hover {
  color: #E53935;
}

.page-ban-ca-bi-quyet-kiem-tien__strategies-section,
.page-ban-ca-bi-quyet-kiem-tien__conclusion-section {
  padding: 60px 0;
  background-color: #B71C1C; /* Custom background color */
  color: #FFF5E1; /* Text Main for dark background */
}

.page-ban-ca-bi-quyet-kiem-tien__strategies-section .page-ban-ca-bi-quyet-kiem-tien__section-title,
.page-ban-ca-bi-quyet-kiem-tien__conclusion-section .page-ban-ca-bi-quyet-kiem-tien__section-title {
  color: #FFF5E1; /* Text Main */
}

.page-ban-ca-bi-quyet-kiem-tien__strategies-section .page-ban-ca-bi-quyet-kiem-tien__subtitle,
.page-ban-ca-bi-quyet-kiem-tien__conclusion-section p {
  color: #FFF5E1;
  font-size: 1.05em;
  text-align: center;
  margin-bottom: 30px;
}

.page-ban-ca-bi-quyet-kiem-tien__strategy-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-ban-ca-bi-quyet-kiem-tien__strategy-item {
  background: #D32F2F; /* Card BG */
  border: 1px solid #F2B544; /* Border Gold */
  border-radius: 10px;
  padding: 30px;
  text-align: left;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: #FFF5E1; /* Text Main */
}

.page-ban-ca-bi-quyet-kiem-tien__strategy-item img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-ban-ca-bi-quyet-kiem-tien__strategy-title {
  font-size: 1.6em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #FFD86A; /* Gold-like color for titles */
}

.page-ban-ca-bi-quyet-kiem-tien__strategy-item p,
.page-ban-ca-bi-quyet-kiem-tien__strategy-list {
  font-size: 1em;
  margin-bottom: 10px;
  color: #FFF5E1;
}

.page-ban-ca-bi-quyet-kiem-tien__strategy-list li {
  margin-bottom: 5px;
  list-style-type: disc;
  margin-left: 20px;
}

.page-ban-ca-bi-quyet-kiem-tien__callout-text {
  text-align: center;
  font-size: 1.1em;
  font-style: italic;
  margin-top: 40px;
  color: #FFF5E1;
}

.page-ban-ca-bi-quyet-kiem-tien__advantage-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.page-ban-ca-bi-quyet-kiem-tien__advantage-list li {
  background: #f0f0f0;
  border-left: 5px solid #C91F17;
  padding: 15px 20px;
  margin-bottom: 15px;
  border-radius: 5px;
  font-size: 1.1em;
  color: #333333;
  box-shadow: 0 2px 5px rgba(0,0,0,0.05);
}

.page-ban-ca-bi-quyet-kiem-tien__advantage-list li strong {
  color: #C91F17;
}

.page-ban-ca-bi-quyet-kiem-tien__tips-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-ban-ca-bi-quyet-kiem-tien__tip-card {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  padding: 25px;
  text-align: left;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
  color: #333333;
}

.page-ban-ca-bi-quyet-kiem-tien__tip-card h3 {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
  color: #C91F17;
}

.page-ban-ca-bi-quyet-kiem-tien__advanced-content {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  margin-top: 40px;
}

.page-ban-ca-bi-quyet-kiem-tien__advanced-content img {
  flex: 1;
  max-width: 50%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  display: block;
}

.page-ban-ca-bi-quyet-kiem-tien__text-block {
  flex: 1;
  color: #333333;
}

.page-ban-ca-bi-quyet-kiem-tien__text-block h3 {
  font-size: 1.6em;
  font-weight: 600;
  margin-top: 25px;
  margin-bottom: 15px;
  color: #C91F17;
}

.page-ban-ca-bi-quyet-kiem-tien__text-block p {
  margin-bottom: 15px;
}

.page-ban-ca-bi-quyet-kiem-tien__faq-list {
  margin-top: 40px;
}

details.page-ban-ca-bi-quyet-kiem-tien__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
}
details.page-ban-ca-bi-quyet-kiem-tien__faq-item summary.page-ban-ca-bi-quyet-kiem-tien__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-ban-ca-bi-quyet-kiem-tien__faq-item summary.page-ban-ca-bi-quyet-kiem-tien__faq-question::-webkit-details-marker {
  display: none;
}
details.page-ban-ca-bi-quyet-kiem-tien__faq-item summary.page-ban-ca-bi-quyet-kiem-tien__faq-question:hover {
  background: #f5f5f5;
}
.page-ban-ca-bi-quyet-kiem-tien__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}
.page-ban-ca-bi-quyet-kiem-tien__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-ban-ca-bi-quyet-kiem-tien__faq-item .page-ban-ca-bi-quyet-kiem-tien__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #333333;
}

.page-ban-ca-bi-quyet-kiem-tien__conclusion-section .page-ban-ca-bi-quyet-kiem-tien__btn-primary {
  margin-top: 30px;
}

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

/* For tablet and smaller desktops (max-width: 1024px) */
@media (max-width: 1024px) {
  .page-ban-ca-bi-quyet-kiem-tien__container {
    padding: 20px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__section-title {
    font-size: 2em;
  }

  .page-ban-ca-bi-quyet-kiem-tien__hero-image img {
    max-width: 90%;
    margin: 0 auto;
  }

  .page-ban-ca-bi-quyet-kiem-tien__advanced-content {
    flex-direction: column;
    align-items: center;
  }

  .page-ban-ca-bi-quyet-kiem-tien__advanced-content img {
    max-width: 80%;
    margin-bottom: 30px;
  }
}

/* For mobile (max-width: 768px) */
@media (max-width: 768px) {
  .page-ban-ca-bi-quyet-kiem-tien__hero-section {
    padding-bottom: 30px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__main-title {
    font-size: clamp(2em, 8vw, 2.5em);
    margin-bottom: 15px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__cta-buttons {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    padding: 0 15px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__btn-primary,
  .page-ban-ca-bi-quyet-kiem-tien__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-ban-ca-bi-quyet-kiem-tien__hero-image img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    object-fit: contain !important; /* HERO mobile: object-fit:contain */
    aspect-ratio: unset !important;
    border-radius: 0;
  }

  .page-ban-ca-bi-quyet-kiem-tien__intro-section,
  .page-ban-ca-bi-quyet-kiem-tien__advantages-section,
  .page-ban-ca-bi-quyet-kiem-tien__tips-section,
  .page-ban-ca-bi-quyet-kiem-tien__advanced-strategies-section,
  .page-ban-ca-bi-quyet-kiem-tien__faq-section,
  .page-ban-ca-bi-quyet-kiem-tien__strategies-section,
  .page-ban-ca-bi-quyet-kiem-tien__conclusion-section {
    padding: 40px 0;
  }

  .page-ban-ca-bi-quyet-kiem-tien__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-ban-ca-bi-quyet-kiem-tien__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__strategy-grid,
  .page-ban-ca-bi-quyet-kiem-tien__tips-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__strategy-item,
  .page-ban-ca-bi-quyet-kiem-tien__tip-card {
    padding: 20px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__strategy-title,
  .page-ban-ca-bi-quyet-kiem-tien__tip-card h3 {
    font-size: 1.4em;
  }

  .page-ban-ca-bi-quyet-kiem-tien__advanced-content {
    gap: 20px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__advanced-content img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    margin-bottom: 20px;
  }

  .page-ban-ca-bi-quyet-kiem-tien__text-block h3 {
    font-size: 1.4em;
  }

  details.page-ban-ca-bi-quyet-kiem-tien__faq-item summary.page-ban-ca-bi-quyet-kiem-tien__faq-question { padding: 15px; }
  .page-ban-ca-bi-quyet-kiem-tien__faq-qtext { font-size: 15px; }
  details.page-ban-ca-bi-quyet-kiem-tien__faq-item .page-ban-ca-bi-quyet-kiem-tien__faq-answer {
    padding: 0 15px 15px;
  }
}

/* Mobile (max-width: 849px) for hero image object-fit contain */
@media (max-width: 849px) {
  .page-ban-ca-bi-quyet-kiem-tien__hero-image img {
    object-fit: contain !important;
    aspect-ratio: unset !important;
  }
}

/* Mobile (max-width: 768px) for content sections overflow-x hidden */
@media (max-width: 768px) {
  .page-ban-ca-bi-quyet-kiem-tien__strategies-section,
  .page-ban-ca-bi-quyet-kiem-tien__tips-section,
  .page-ban-ca-bi-quyet-kiem-tien__advanced-strategies-section {
    overflow-x: hidden;
  }
  /* General container and image responsiveness for mobile */
  .page-ban-ca-bi-quyet-kiem-tien img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
}