:root {
  --primary-color: #2F6BFF;
  --secondary-color: #6FA3FF;
  --button-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  --card-bg: #FFFFFF;
  --page-bg: #F4F7FB;
  --text-main: #1F2D3D;
  --text-dark: #000000;
  --border-color: #D6E2FF;
  --glow-color: #A5C4FF;
  --spacing-large: 80px;
  --spacing-medium: 40px;
  --spacing-small: 20px;
}

.page-about {
  font-family: 'Arial', sans-serif;
  color: var(--text-main);
  background-color: var(--page-bg);
  line-height: 1.6;
}

.page-about__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, body handles header offset */
  padding-bottom: var(--spacing-large);
  background-color: var(--primary-color);
  position: relative;
  overflow: hidden;
  color: #ffffff;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 675px;
  overflow: hidden;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.7); /* Slightly darken image for text contrast */
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: var(--spacing-medium) var(--spacing-small);
  margin-top: -150px; /* Overlap with image slightly for visual flow */
}

.page-about__hero-title {
  font-size: 3.2em;
  font-weight: 700;
  margin-bottom: var(--spacing-small);
  line-height: 1.2;
  color: #ffffff;
}

.page-about__hero-description {
  font-size: 1.1em;
  margin-bottom: var(--spacing-medium);
  color: #f0f0f0;
}

.page-about__hero-cta {
  display: flex;
  gap: var(--spacing-small);
  justify-content: center;
  flex-wrap: wrap;
}

.page-about__section-spacing {
  padding: var(--spacing-large) 0;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-small);
}

.page-about__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--spacing-large);
  color: var(--text-dark);
}

.page-about__sub-title {
  font-size: 1.8em;
  font-weight: 600;
  margin-top: var(--spacing-medium);
  margin-bottom: var(--spacing-small);
  color: var(--primary-color);
}

.page-about__text-block {
  margin-bottom: var(--spacing-small);
  line-height: 1.7;
  color: var(--text-main);
}

.page-about__list {
  list-style-type: disc;
  margin-left: var(--spacing-medium);
  margin-bottom: var(--spacing-medium);
  color: var(--text-main);
}

.page-about__list li {
  margin-bottom: 10px;
}

.page-about__image-block {
  margin: var(--spacing-medium) 0;
  text-align: center;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-about__btn-primary,
.page-about__btn-secondary,
.page-about__btn-link,
.page-about__btn-small {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  white-space: normal;
  word-wrap: break-word;
  box-sizing: border-box;
  max-width: 100%;
}

.page-about__btn-primary {
  background: var(--button-gradient);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-about__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-about__btn-secondary {
  background: #ffffff;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.page-about__btn-secondary:hover {
  background: var(--primary-color);
  color: #ffffff;
  transform: translateY(-3px);
}

.page-about__btn-link {
  background: none;
  color: var(--primary-color);
  border: 1px solid var(--primary-color);
  padding: 10px 20px;
  border-radius: 5px;
  font-size: 0.9em;
}

.page-about__btn-link:hover {
  background: var(--primary-color);
  color: #ffffff;
}

.page-about__btn-small {
  background: var(--primary-color);
  color: #ffffff;
  border: none;
  padding: 8px 15px;
  border-radius: 5px;
  font-size: 0.85em;
  margin-top: 10px;
}

.page-about__btn-small:hover {
  filter: brightness(1.1);
}

.page-about__dark-section {
  background-color: var(--primary-color);
  color: #ffffff;
}

.page-about__dark-section .page-about__section-title,
.page-about__dark-section .page-about__sub-title {
  color: #ffffff;
}

.page-about__dark-section .page-about__text-block,
.page-about__dark-section .page-about__list li {
  color: #f0f0f0;
}

.page-about__light-bg {
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-about__gameshow-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-medium);
  margin-top: var(--spacing-large);
  margin-bottom: var(--spacing-large);
}

.page-about__gameshow-card {
  background: var(--card-bg);
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  overflow: hidden;
  text-align: center;
  padding-bottom: var(--spacing-small);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-about__gameshow-image {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
  margin-bottom: var(--spacing-small);
}

.page-about__gameshow-title {
  font-size: 1.5em;
  font-weight: 600;
  color: var(--text-dark);
  margin-bottom: 10px;
  padding: 0 15px;
}

.page-about__gameshow-description {
  font-size: 0.95em;
  color: var(--text-main);
  margin-bottom: var(--spacing-small);
  flex-grow: 1;
  padding: 0 15px;
}

.page-about__cta-center {
  text-align: center;
  margin-top: var(--spacing-large);
}

.page-about__faq-list {
  margin-top: var(--spacing-large);
}

.page-about__faq-item {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.1em;
  font-weight: 600;
  color: var(--text-dark);
  cursor: pointer;
  background-color: #fcfdff;
  list-style: none;
}

.page-about__faq-question::-webkit-details-marker,
.page-about__faq-question::marker {
  display: none;
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
  color: var(--primary-color);
}

.page-about__faq-item[open] .page-about__faq-toggle {
  transform: rotate(45deg);
}

.page-about__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  color: var(--text-main);
  line-height: 1.7;
}

.page-about__faq-answer p {
  margin-bottom: 10px;
}

/* General image responsiveness */
.page-about img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

@media (max-width: 1024px) {
  .page-about__hero-title {
    font-size: 2.8em;
  }

  .page-about__section-title {
    font-size: 2em;
  }

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

  .page-about__gameshow-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-about__hero-content {
    margin-top: -100px;
  }
}

@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: var(--spacing-medium);
  }

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

  .page-about__hero-content {
    margin-top: -80px; /* Adjust overlap */
    padding: var(--spacing-small) 15px;
  }

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

  .page-about__hero-description {
    font-size: 1em !important;
    margin-bottom: var(--spacing-small);
  }

  .page-about__hero-cta {
    flex-direction: column;
    gap: 10px;
    width: 100%;
  }

  /* 其他内容模块 */
  .page-about__section-spacing {
    padding: var(--spacing-medium) 0;
  }

  .page-about__container {
    padding: 0 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__section-title {
    font-size: 1.8em !important;
    margin-bottom: var(--spacing-medium);
  }

  .page-about__sub-title {
    font-size: 1.3em !important;
  }

  .page-about__text-block,
  .page-about__list li,
  .page-about__gameshow-description,
  .page-about__faq-answer p {
    font-size: 0.95em !important;
  }

  /* 产品展示图区域 */
  .page-about__gameshow-grid {
    grid-template-columns: 1fr !important; /* Single column on mobile */
    gap: var(--spacing-small);
    margin-top: var(--spacing-medium);
    margin-bottom: var(--spacing-medium);
    overflow-x: hidden !important;
  }

  .page-about__gameshow-card {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    margin-left: auto;
    margin-right: auto;
  }

  .page-about__gameshow-image {
    height: 180px; /* Adjust height for mobile */
  }

  .page-about__gameshow-title {
    font-size: 1.3em !important;
  }

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

  .page-about__image-block {
    margin: var(--spacing-small) 0;
  }

  /* 按钮与按钮容器 */
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about__btn-link,
  .page-about__btn-small {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 15px;
    font-size: 0.9em;
  }

  .page-about__hero-cta,
  .page-about__cta-center {
    flex-wrap: wrap !important;
    gap: 10px;
  }

  .page-about__cta-center .page-about__btn-primary {
    width: auto !important; /* Allow center button to shrink if needed, but still full width if text is long */
    max-width: fit-content !important;
    padding-left: 30px;
    padding-right: 30px;
  }

  .page-about__faq-question {
    padding: 15px 20px;
    font-size: 1em !important;
  }

  .page-about__faq-answer {
    padding: 0 20px 15px;
  }
}