/* 页面基础样式 */
.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #FFF3E6; /* Text Main */
  background-color: #0D0E12; /* Background */
}

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

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

.page-about__section--padded-top {
    padding-top: 10px; /* Small top padding for hero section */
}

.page-about__dark-section {
  background-color: #0D0E12; /* Background */
  color: #FFF3E6; /* Text Main */
}

.page-about__light-bg {
  background-color: #17191F; /* Card BG, slightly lighter for contrast */
  color: #FFF3E6; /* Text Main */
}

.page-about__section-title {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 40px;
  color: #FFF3E6; /* Text Main */
}

.page-about__section-title--light {
  color: #FFF3E6; /* Ensure light text on dark sections */
}

.page-about__sub-title {
  font-size: 24px;
  font-weight: bold;
  margin-top: 30px;
  margin-bottom: 15px;
  color: #FFB04D; /* Glow */
}

.page-about__paragraph {
  font-size: 16px;
  margin-bottom: 20px;
  color: #FFF3E6;
}

.page-about__paragraph--light {
  color: #FFF3E6;
}

/* Hero Section */
.page-about__hero-section {
  padding: 10px 0 60px 0; /* Small top padding, then regular padding */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  color: #FFF3E6;
  background-color: #0D0E12;
}

.page-about__hero-image-wrapper {
  width: 100%;
  max-height: 675px; /* Max height for hero image */
  overflow: hidden;
  margin-bottom: 30px; /* Space between image and content */
}

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

.page-about__hero-content {
  max-width: 900px;
  text-align: center;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #FFB04D; /* Glow */
  margin-bottom: 20px;
  /* clamp for responsive font size, but not too large */
  font-size: clamp(2.5rem, 5vw, 3.5rem);
}

.page-about__hero-description {
  font-size: 18px;
  margin-bottom: 30px;
  line-height: 1.8;
  color: #FFF3E6;
}

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

/* Buttons */
.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 18px;
  transition: background-color 0.3s ease, transform 0.2s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
  color: #ffffff;
  border: none;
}

.page-about__btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255, 165, 58, 0.4);
}

.page-about__btn-secondary {
  background: transparent;
  color: #FFB04D; /* Glow */
  border: 2px solid #A84F0C; /* Border */
}

.page-about__btn-secondary:hover {
  background: rgba(255, 176, 77, 0.1);
  transform: translateY(-2px);
}

.page-about__btn-text {
  color: #FFB04D; /* Glow */
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-about__btn-text:hover {
  color: #FFA53A; /* Auxiliary */
}

/* Grid Layouts */
.page-about__grid-two-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  text-align: left;
}

.page-about__grid-two-cols-reversed {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  text-align: left;
}

.page-about__grid-two-cols-reversed .page-about__text-block {
    order: 1;
}
.page-about__grid-two-cols-reversed .page-about__image-block {
    order: 2;
}

.page-about__image-block img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  display: block;
}

/* Feature Cards */
.page-about__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__feature-card {
  background-color: #17191F; /* Card BG */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #A84F0C; /* Border */
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(255, 165, 58, 0.3);
}

.page-about__card-image {
  width: 100%;
  max-width: 250px;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-about__card-title {
  font-size: 20px;
  font-weight: bold;
  margin-bottom: 15px;
  color: #FFB04D; /* Glow */
}

.page-about__card-text {
  font-size: 15px;
  color: #FFF3E6;
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-about__commitment-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__commitment-card {
  background-color: #17191F; /* Card BG */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid #A84F0C; /* Border */
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about__commitment-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(255, 165, 58, 0.3);
}

/* FAQ Section */
details.page-about__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #A84F0C; /* Border */
  overflow: hidden;
  background: #17191F; /* Card BG */
  color: #FFF3E6;
}
details.page-about__faq-item summary.page-about__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-about__faq-item summary.page-about__faq-question::-webkit-details-marker {
  display: none;
}
details.page-about__faq-item summary.page-about__faq-question:hover {
  background: rgba(255, 165, 58, 0.1);
}
.page-about__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #FFB04D; /* Glow */
}
.page-about__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #FFF3E6; /* Text Main */
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-about__faq-item .page-about__faq-answer {
  padding: 0 20px 20px;
  background: rgba(23, 25, 31, 0.8); /* Slightly transparent Card BG */
  border-radius: 0 0 5px 5px;
  text-align: left;
}

.page-about__faq-answer p {
    color: #FFF3E6;
}

/* CTA Section */
.page-about__cta-section {
  background-color: #0D0E12; /* Background */
  padding: 80px 0;
}

.page-about__cta-group {
  display: flex;
  gap: 20px;
  justify-content: center;
  margin-top: 40px;
  flex-wrap: wrap;
}

/* Global image rules for content area - min size */
.page-about img:not(.page-about__hero-image) {
    min-width: 200px;
    min-height: 200px;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__section-title {
    font-size: 32px;
  }
  .page-about__sub-title {
    font-size: 22px;
  }
  .page-about__hero-description {
    font-size: 17px;
  }
  .page-about__grid-two-cols,
  .page-about__grid-two-cols-reversed {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .page-about__grid-two-cols-reversed .page-about__text-block {
        order: unset;
    }
  .page-about__grid-two-cols-reversed .page-about__image-block {
        order: unset;
    }
  .page-about__features-grid,
  .page-about__commitment-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  /* 1. HERO 主图区域 */
  .page-about__hero-section {
    padding: 10px 0 40px 0; /* Small top padding, then regular padding */
  }
  .page-about__hero-image-wrapper {
    max-height: 400px;
  }
  .page-about__hero-image {
    object-fit: contain !important; /* Prevent cropping */
    aspect-ratio: unset !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-about__hero-content {
    padding: 0 15px;
  }
  .page-about__main-title {
    font-size: clamp(2rem, 8vw, 2.8rem); /* Adjust clamp for mobile */
    line-height: 1.3;
  }
  .page-about__hero-description {
    font-size: 15px;
  }
  .page-about__hero-cta-group {
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 300px; /* Constrain button group width */
    margin: 0 auto;
  }

  /* 2. 产品展示图区域 (N/A for About page, but general grid adaptation) */
  .page-about__features-grid,
  .page-about__commitment-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    overflow-x: hidden;
  }
  .page-about__feature-card,
  .page-about__commitment-card {
    padding: 20px;
  }
  .page-about__card-image {
    max-width: 200px;
  }

  /* 3. 装饰主标题 + 长文 SEO 区 */
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: 28px;
    margin-bottom: 25px;
  }
  .page-about__sub-title {
    font-size: 20px;
  }
  .page-about__paragraph {
    font-size: 15px;
  }
  .page-about__container {
    padding-left: 15px;
    padding-right: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-about__text-block {
    text-align: center;
  }
  .page-about__image-block {
    margin-top: 20px;
  }

  /* 4. 通用图片与容器 */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-width: unset !important; /* Allow smaller images if they are content images that fit */
    min-height: unset !important;
  }
  .page-about__section, .page-about__card, .page-about__container, .page-about__hero-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__hero-section { padding-left: 0; padding-right: 0; } /* Hero content has its own padding */

  /* 5. 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-left: 15px;
    padding-right: 15px;
  }
  .page-about__cta-group,
  .page-about__hero-cta-group {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    flex-wrap: wrap !important;
    gap: 15px;
    flex-direction: column;
  }

  /* FAQ */
  details.page-about__faq-item summary.page-about__faq-question { padding: 15px; }
  .page-about__faq-qtext { font-size: 15px; }
  details.page-about__faq-item .page-about__faq-answer { padding: 0 15px 15px; }
  .page-about__faq-toggle {
    font-size: 20px;
    width: 24px;
    height: 24px;
    margin-left: 10px;
  }
}