/* style/about.css */

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #F3F8FF; /* Text Main */
  background-color: transparent; /* Body background from shared.css: var(--deep-navy) #08162B, so text needs to be light */
}

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

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

.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, relying on body padding-top from shared.css */
  padding-bottom: 60px;
  overflow: hidden;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  max-height: 600px; /* Limit height for aesthetic */
  z-index: 1;
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  padding: 40px 20px;
  max-width: 900px;
  margin-top: -120px; /* Pull content up over image for visual appeal, but not overlapping text */
  background: rgba(16, 35, 63, 0.8); /* Card BG with transparency */
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-about__main-title {
  font-size: clamp(2em, 4vw, 3.2em);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #F2C14E; /* Gold */
}

.page-about__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #AFC4E8; /* Text Secondary */
}

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

.page-about__section-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 40px;
  color: #F2C14E; /* Gold */
}

.page-about__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: -20px auto 60px auto;
  color: #AFC4E8;
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.page-about__text-block p {
  margin-bottom: 15px;
  color: #F3F8FF; /* Text Main */
}

.page-about__image-wrapper {
  text-align: center;
}

.page-about__image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

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

.page-about__value-card {
  background: #10233F; /* Card BG */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  text-align: center;
  transition: transform 0.3s ease;
  border: 1px solid #244D84; /* Border */
}

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

.page-about__card-title {
  font-size: 1.5em;
  margin-bottom: 15px;
  color: #F2C14E; /* Gold */
}

.page-about__value-card p {
  color: #AFC4E8; /* Text Secondary */
}

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

.page-about__commitment-item {
  background: #10233F; /* Card BG */
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
  border: 1px solid #244D84; /* Border */
}

.page-about__item-title {
  font-size: 1.4em;
  margin-bottom: 15px;
  color: #F2C14E; /* Gold */
}

.page-about__commitment-item p {
  color: #AFC4E8; /* Text Secondary */
}

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

.page-about__btn-primary {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%); /* Button gradient */
  color: #F3F8FF; /* Text Main */
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: none;
}

.page-about__btn-primary:hover {
  transform: translateY(-2px);
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
}

.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  background: #10233F; /* Card BG */
  color: #F3F8FF; /* Text Main */
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  border: 2px solid #2B73F6;
}

.page-about__btn-secondary:hover {
  transform: translateY(-2px);
  background: #2B73F6;
}

.page-about__faq-list {
  max-width: 900px;
  margin: 0 auto;
}

.page-about__faq-item {
  background: #10233F; /* Card BG */
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid #244D84; /* Border */
  overflow: hidden;
}

.page-about__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: bold;
  color: #F2C14E; /* Gold */
  cursor: pointer;
  background-color: #113B7A; /* Main color */
  border-bottom: 1px solid #1B3357; /* Divider */
}

.page-about__faq-question:hover {
  background-color: #1D5FD1; /* Auxiliary color */
}

.page-about__faq-qtext {
  flex-grow: 1;
}

.page-about__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: #F3F8FF;
}

.page-about__faq-item[open] .page-about__faq-question {
  border-bottom: 1px solid #1B3357; /* Divider */
}

.page-about__faq-item[open] .page-about__faq-toggle {
  content: '−';
}

.page-about__faq-answer {
  padding: 20px 25px;
  font-size: 1em;
  color: #AFC4E8; /* Text Secondary */
}

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

@media (max-width: 1024px) {
  .page-about__hero-content {
    margin-top: -80px;
    padding: 30px 20px;
  }

  .page-about__main-title {
    font-size: clamp(2em, 4.5vw, 2.8em);
  }

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

  .page-about__content-grid {
    grid-template-columns: 1fr;
  }

  .page-about__image-wrapper {
    order: -1; /* Image above text on smaller screens */
    margin-bottom: 30px;
  }
}

@media (max-width: 768px) {
  .page-about {
    font-size: 16px !important;
    line-height: 1.6 !important;
  }

  .page-about__container {
    padding: 0 15px !important;
  }

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

  /* HERO 主图区域 */
  .page-about__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px !important;
  }

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

  .page-about__hero-content {
    margin-top: -60px !important;
    padding: 20px 15px !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-about__main-title {
    font-size: clamp(1.8em, 6vw, 2.2em) !important;
    margin-bottom: 15px !important;
  }

  .page-about__hero-description {
    font-size: 1em !important;
    margin-bottom: 20px !important;
  }

  .page-about__hero-actions {
    flex-direction: column !important;
    gap: 10px !important;
  }

  /* 其他内容模块 */
  .page-about__section-title {
    font-size: 1.8em !important;
    margin-bottom: 30px !important;
  }

  .page-about__section-description {
    font-size: 1em !important;
    margin-bottom: 40px !important;
    padding: 0 15px !important;
  }

  .page-about__content-grid {
    gap: 30px !important;
  }

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

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

  .page-about__values-grid,
  .page-about__commitment-items {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  /* 按钮与按钮容器 */
  .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: 12px 20px !important;
    text-align: center;
  }

  .page-about__hero-actions,
  .page-about__cta-bottom {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px !important;
    padding: 0 15px !important;
  }

  .page-about__faq-question {
    font-size: 1.1em !important;
    padding: 15px 20px !important;
  }

  .page-about__faq-answer {
    padding: 15px 20px !important;
    font-size: 0.95em !important;
  }

  .page-about__faq-list {
    padding: 0 15px !important;
  }

  .page-about__value-card,
  .page-about__commitment-item {
    padding: 25px !important;
  }

  .page-about__card-title,
  .page-about__item-title {
    font-size: 1.3em !important;
  }
}