.page-about {
  font-family: 'Arial', sans-serif;
  color: #333333;
  line-height: 1.6;
  background-color: #f5f5f5;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.page-about__section {
  padding: 60px 0;
  margin-bottom: 20px;
}

.page-about__section:nth-of-type(odd) {
  background-color: #ffffff;
}

.page-about__section:nth-of-type(even) {
  background-color: #f9f9f9;
}

.page-about h1,
.page-about h2,
.page-about h3 {
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 30px;
  font-weight: bold;
}

.page-about h1 {
  font-size: 3.2em;
  color: #ffffff;
}

.page-about h2 {
  font-size: 2.5em;
  border-bottom: 3px solid var(--primary-color);
  display: inline-block;
  padding-bottom: 10px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 0;
}

.page-about h3 {
  font-size: 1.8em;
  color: var(--secondary-color);
  margin-bottom: 15px;
}

.page-about p {
  font-size: 1.1em;
  margin-bottom: 15px;
  text-align: justify;
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  background: linear-gradient(135deg, var(--primary-color-darker), var(--secondary-color)); /* Sử dụng màu đã cung cấp */
  color: #ffffff;
}

.page-about__hero-container {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-about__hero-image {
  width: 100%;
  margin-bottom: 30px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-about__hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  max-width: 800px;
}

.page-about__hero-content h1 {
  color: #ffffff;
  font-size: 3.5em;
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-about__hero-content p {
  font-size: 1.2em;
  color: #eeeeee;
  margin-bottom: 30px;
  text-align: center;
}

.page-about__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--primary-color);
  color: var(--secondary-color-text);
  text-decoration: none;
  border-radius: 50px;
  font-size: 1.2em;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-transform: uppercase;
}

.page-about__cta-button:hover {
  background: var(--primary-color-hover);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-about__cta-button--small {
  padding: 12px 30px;
  font-size: 1.1em;
}

/* Grid Layouts */
.page-about__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 40px;
}

@media (min-width: 768px) {
  .page-about__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-about__grid--two-col {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Values Section */
.page-about__values-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__value-card {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e0e0e0;
}

.page-about__value-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-about__value-icon {
  width: 120px;
  height: 120px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-about__value-card h3 {
  font-size: 1.5em;
  color: var(--secondary-color);
  margin-bottom: 10px;
}

.page-about__value-card p {
  font-size: 1em;
  color: #555555;
  text-align: center;
}

/* Why Choose Section */
.page-about__reason-item {
  background-color: #ffffff;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  padding: 30px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #e0e0e0;
}

.page-about__reason-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.page-about__reason-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 25px;
}

.page-about__reason-item h3 {
  color: var(--secondary-color);
  font-size: 1.7em;
  margin-bottom: 15px;
  text-align: left;
}

.page-about__reason-item p {
  font-size: 1.1em;
  color: #444444;
  text-align: justify;
}

/* Commitment Section */
.page-about__commitment p {
  max-width: 900px;
  margin: 0 auto 20px auto;
  text-align: center;
  font-size: 1.15em;
}

/* FAQ Section */
.page-about__faq {
  background-color: #f0f0f0;
  padding: 60px 0;
}

.faq-item {
  margin-bottom: 15px;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #ffffff;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.faq-question:hover {
  background: #f5f5f5;
}

.faq-question h3 {
  margin: 0;
  font-size: 1.25em;
  color: var(--secondary-color);
  text-align: left;
  flex-grow: 1;
}

.faq-toggle {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--primary-color);
  transition: transform 0.3s ease;
  margin-left: 15px;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  padding: 0 25px;
  background: #fcfcfc;
}

.faq-answer p {
  padding-top: 15px;
  padding-bottom: 15px;
  margin: 0;
  font-size: 1.05em;
  color: #555555;
  text-align: justify;
}

.faq-item.active .faq-answer {
  max-height: 500px; /* Sufficient height to accommodate content */
  padding: 15px 25px;
  border-top: 1px solid #e0e0e0;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
  color: var(--secondary-color);
}

/* Variables for color scheme */
:root {
  --primary-color: #FFD700; /* Gold */
  --primary-color-darker: #CCA300; /* Slightly darker gold */
  --primary-color-hover: #E6C200; /* Gold for hover */
  --secondary-color: #000080; /* Dark Blue */
  --secondary-color-text: #ffffff; /* White for text on dark blue */
  --text-color-light: #ffffff;
  --text-color-dark: #333333;
  --background-light: #f5f5f5;
  --background-dark: #1a1a1a;
}

/* Ensuring contrast for text on primary color buttons */
.page-about__cta-button {
  color: var(--secondary-color); /* Dark blue text on gold button */
}

.page-about__cta-button:hover {
  color: var(--secondary-color); /* Dark blue text on gold button */
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__hero-content h1 {
    font-size: 2.8em;
  }
  .page-about h2 {
    font-size: 2em;
  }
  .page-about h3 {
    font-size: 1.6em;
  }
  .page-about p {
    font-size: 1em;
  }
  .page-about__value-icon {
    width: 100px;
    height: 100px;
  }
  .page-about__reason-image {
    height: 200px;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding: 40px 15px;
  }
  .page-about__hero-content h1 {
    font-size: 2.2em;
  }
  .page-about__hero-content p {
    font-size: 1em;
  }
  .page-about__cta-button {
    padding: 12px 25px;
    font-size: 1em;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about h2 {
    font-size: 1.8em;
  }
  .page-about h3 {
    font-size: 1.4em;
  }
  .page-about__grid {
    grid-template-columns: 1fr;
  }
  .page-about__values-list {
    grid-template-columns: 1fr;
  }
  .page-about__value-card {
    padding: 25px;
  }
  .page-about__reason-item {
    padding: 25px;
  }
  .faq-question {
    padding: 15px 20px;
  }
  .faq-question h3 {
    font-size: 1.1em;
  }
  .faq-toggle {
    font-size: 1.6em;
  }
  .faq-answer {
    padding: 0 20px;
  }
  .faq-item.active .faq-answer {
    padding: 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-about__hero-content h1 {
    font-size: 1.8em;
  }
  .page-about h2 {
    font-size: 1.6em;
  }
  .page-about h3 {
    font-size: 1.2em;
  }
  .page-about__cta-button {
    font-size: 0.9em;
    padding: 10px 20px;
  }
  .page-about__value-icon {
    width: 80px;
    height: 80px;
  }
  .page-about__reason-image {
    height: 180px;
  }
  .faq-question h3 {
    font-size: 1em;
  }
  .faq-toggle {
    font-size: 1.4em;
  }
}