.page-about {
  color: #ffffff; /* Body background #121212 is dark, so text is light */
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
}

.page-about__hero-section {
  position: relative;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, body handles --header-offset */
  padding-bottom: 60px;
  background-color: #017439;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 600px; /* Limit height for aesthetic */
  margin-bottom: 30px;
}

.page-about__hero-content {
  max-width: 900px;
  padding: 0 20px;
  z-index: 1;
}

.page-about__main-title {
  font-size: clamp(2.5em, 5vw, 3.5em);
  color: #ffffff;
  margin-bottom: 15px;
  font-weight: 700;
  line-height: 1.2;
}

.page-about__hero-description {
  font-size: 1.2em;
  color: #f0f0f0;
  margin-bottom: 30px;
}

.page-about__hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

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

.page-about__btn-primary {
  background-color: #C30808; /* Đăng Ký color */
  color: #FFFF00; /* Đăng Ký font color */
  border: 2px solid #C30808;
}

.page-about__btn-primary:hover {
  background-color: #e02020;
  border-color: #e02020;
}

.page-about__btn-secondary {
  background-color: #C30808; /* Đăng Nhập color */
  color: #FFFF00; /* Đăng Nhập font color */
  border: 2px solid #C30808;
}

.page-about__btn-secondary:hover {
  background-color: transparent;
  color: #C30808;
}

.page-about__section {
  padding: 80px 0;
}

.page-about__dark-bg {
  background-color: #017439;
  color: #ffffff;
}

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

.page-about__section-title {
  font-size: 2.8em;
  color: #ffffff;
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
}

.page-about__section-description {
  font-size: 1.1em;
  color: #f0f0f0;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
}

.page-about__mission-vision .page-about__section-title,
.page-about__ecosystem .page-about__section-title,
.page-about__social-responsibility .page-about__section-title,
.page-about__contact-cta .page-about__section-title {
  color: #017439;
}

.page-about__mission-vision .page-about__section-description,
.page-about__ecosystem .page-about__section-description,
.page-about__social-responsibility .page-about__section-description,
.page-about__contact-cta .page-about__section-description {
  color: #333333;
}

.page-about__sub-title {
  font-size: 2em;
  color: #017439;
  margin-top: 30px;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-about__content-grid {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 60px;
}

.page-about__content-grid--reverse {
  flex-direction: row-reverse;
}

.page-about__text-block {
  flex: 1;
  color: #333333;
}

.page-about__text-block p {
  margin-bottom: 15px;
}

.page-about__image-wrapper {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  min-width: 200px;
  min-height: 200px;
}

.page-about__commitment .page-about__section-title {
  color: #ffffff;
}

.page-about__commitment .page-about__section-description {
  color: #f0f0f0;
}

.page-about__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-about__feature-card {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  transition: transform 0.3s ease, background-color 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: #ffffff;
}

.page-about__feature-card:hover {
  transform: translateY(-10px);
  background-color: rgba(255, 255, 255, 0.2);
}

.page-about__feature-icon {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  min-width: 200px;
  min-height: 200px;
  object-fit: cover;
  border-radius: 8px;
}

.page-about__feature-title {
  font-size: 1.5em;
  color: #FFFF00;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-about__feature-card p {
  font-size: 1em;
  color: #f0f0f0;
}

.page-about__games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-about__game-card {
  background-color: #ffffff;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  color: #333333;
}

.page-about__game-card:hover {
  transform: translateY(-5px);
}

.page-about__game-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  min-width: 200px;
  min-height: 200px;
}

.page-about__game-card h3 {
  font-size: 1.4em;
  color: #017439;
  padding: 15px 20px 0;
  margin-bottom: 10px;
  font-weight: 600;
}

.page-about__game-card p {
  font-size: 0.95em;
  color: #555555;
  padding: 0 20px 15px;
}

.page-about__btn-link {
  display: block;
  text-align: center;
  background-color: #017439;
  color: #ffffff;
  padding: 12px 20px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease;
  border-radius: 0 0 10px 10px;
}

.page-about__btn-link:hover {
  background-color: #005a2e;
}

.page-about__promotions-wrapper {
  display: flex;
  gap: 40px;
  margin-top: 50px;
}

.page-about__promo-item {
  flex: 1;
  background-color: rgba(255, 255, 255, 0.15);
  padding: 30px;
  border-radius: 10px;
  color: #ffffff;
}

.page-about__promo-title {
  font-size: 1.8em;
  color: #FFFF00;
  margin-bottom: 20px;
  font-weight: 600;
}

.page-about__promo-list {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
}

.page-about__promo-list li {
  margin-bottom: 10px;
  position: relative;
  padding-left: 25px;
  font-size: 1em;
}

.page-about__promo-list li::before {
  content: '✔';
  position: absolute;
  left: 0;
  color: #FFFF00;
  font-weight: bold;
}

.page-about__social-responsibility .page-about__section-title,
.page-about__social-responsibility .page-about__sub-title {
  color: #017439;
}

.page-about__social-responsibility .page-about__text-block {
  color: #333333;
}

.page-about__why-choose-us .page-about__section-title {
  color: #ffffff;
}

.page-about__why-choose-us .page-about__section-description {
  color: #f0f0f0;
}

.page-about__advantages-list {
  list-style: none;
  padding: 0;
  max-width: 800px;
  margin: 50px auto;
  color: #f0f0f0;
}

.page-about__advantages-list li {
  background-color: rgba(255, 255, 255, 0.1);
  padding: 15px 25px;
  margin-bottom: 15px;
  border-left: 5px solid #FFFF00;
  border-radius: 5px;
  font-size: 1.1em;
}

.page-about__advantages-list li strong {
  color: #FFFF00;
}

.page-about__cta-wrapper {
  text-align: center;
  margin-top: 60px;
}

.page-about__cta-text {
  font-size: 1.3em;
  color: #FFFF00;
  margin-bottom: 30px;
  font-weight: 600;
}

.page-about__contact-cta {
  text-align: center;
  background-color: #f5f5f5;
  color: #333333;
  padding: 60px 0;
}

.page-about__contact-cta .page-about__section-title {
  color: #017439;
}

.page-about__contact-cta .page-about__section-description {
  color: #555555;
  margin-bottom: 40px;
}

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

/* Mobile specific styles for all images */
.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Mobile specific styles for all buttons */
.page-about__btn-primary,
.page-about__btn-secondary,
.page-about a[class*="button"],
.page-about a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

/* Button containers */
.page-about__hero-buttons,
.page-about__cta-wrapper {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .page-about__hero-content {
    max-width: 800px;
  }

  .page-about__main-title {
    font-size: clamp(2em, 4.5vw, 3em);
  }

  .page-about__section-title {
    font-size: 2.5em;
  }

  .page-about__content-grid {
    flex-direction: column;
  }

  .page-about__content-grid--reverse {
    flex-direction: column;
  }

  .page-about__features-grid,
  .page-about__games-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

  .page-about__promotions-wrapper {
    flex-direction: column;
    gap: 30px;
  }
}

@media (max-width: 768px) {
  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important; /* Small top padding, body handles --header-offset */
    padding-bottom: 40px;
  }

  .page-about__hero-image {
    max-height: 400px;
  }

  .page-about__main-title {
    font-size: clamp(1.8em, 8vw, 2.5em);
  }

  .page-about__hero-description {
    font-size: 1em;
  }

  /* 按钮与按钮容器 */
  .page-about__hero-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about 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-about__cta-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-about__container,
  .page-about__section,
  .page-about__card,
  .page-about__text-block,
  .page-about__image-wrapper,
  .page-about__feature-card,
  .page-about__game-card,
  .page-about__promo-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-about__section {
    padding: 40px 0;
  }

  .page-about__section-title {
    font-size: 2em;
    margin-bottom: 15px;
  }

  .page-about__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-about__sub-title {
    font-size: 1.5em;
    margin-top: 20px;
    margin-bottom: 10px;
  }

  .page-about__content-grid {
    gap: 20px;
    margin-bottom: 40px;
  }

  .page-about__features-grid,
  .page-about__games-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
  }

  .page-about__feature-icon {
    width: 80px;
    height: 80px;
    min-width: 80px;
    min-height: 80px;
  }

  .page-about__feature-title {
    font-size: 1.3em;
  }

  .page-about__game-image {
    height: 180px;
  }

  .page-about__game-card h3 {
    font-size: 1.2em;
  }

  .page-about__promotions-wrapper {
    gap: 20px;
    margin-top: 30px;
  }

  .page-about__promo-title {
    font-size: 1.5em;
  }

  .page-about__advantages-list {
    margin: 30px auto;
  }

  .page-about__advantages-list li {
    font-size: 1em;
    padding: 12px 20px;
  }

  .page-about__cta-text {
    font-size: 1.1em;
    margin-bottom: 20px;
  }

  .page-about__contact-cta {
    padding: 40px 0;
  }
}