.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333333; /* Default text color for light background */
  background-color: #F5F7FA; /* Body background color */
}

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

.page-about__article-wrap {
  max-width: 800px; /* Narrower for long-form content */
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__top-section {
  padding-top: 10px; /* Small top padding, assuming body has header offset */
  padding-bottom: 40px;
  text-align: center;
  background-color: #F5F7FA;
}

.page-about__main-title {
  font-size: 2.8em;
  font-weight: bold;
  color: #E53935;
  margin-bottom: 15px;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-about__intro-text {
  font-size: 1.1em;
  color: #333333;
  margin-bottom: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-about__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.page-about__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-about__btn-primary {
  background: linear-gradient(180deg, #FF5A4F 0%, #E53935 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(229, 57, 53, 0.4);
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, #E53935 0%, #FF5A4F 100%);
  box-shadow: 0 6px 20px rgba(229, 57, 53, 0.6);
}

.page-about__btn-secondary {
  background-color: #ffffff;
  color: #E53935;
  border: 2px solid #E53935;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-about__btn-secondary:hover {
  background-color: #E53935;
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(229, 57, 53, 0.4);
}

.page-about__btn-large {
  padding: 16px 32px;
  font-size: 1.2em;
  min-width: 220px;
}

.page-about__section {
  padding: 60px 0;
  background-color: #F5F7FA;
}

.page-about__section:nth-of-type(even) {
  background-color: #F5F7FA;
}

.page-about__section-title {
  font-size: 2.2em;
  color: #E53935;
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
  line-height: 1.3;
}

.page-about__section p {
  margin-bottom: 20px;
  font-size: 1.05em;
  color: #333333;
}

.page-about__figure {
  margin: 40px auto;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
}

.page-about__figure img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  margin: 0 auto;
}

.page-about__figcaption {
  font-style: italic;
  font-size: 0.9em;
  color: #666666;
  margin-top: 10px;
}

.page-about__value-list,
.page-about__commitment-list,
.page-about__product-list,
.page-about__advantages-list,
.page-about__responsibility-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-about__value-list li,
.page-about__commitment-list li,
.page-about__product-list li,
.page-about__advantages-list li,
.page-about__responsibility-list li {
  background-color: #ffffff;
  border: 1px solid #E0E0E0;
  border-radius: 8px;
  padding: 20px 25px;
  margin-bottom: 15px;
  display: flex;
  align-items: flex-start;
  gap: 15px;
  font-size: 1.05em;
  color: #333333;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-about__value-list li strong,
.page-about__commitment-list li strong,
.page-about__product-list li strong,
.page-about__advantages-list li strong,
.page-about__responsibility-list li strong {
  color: #E53935;
  min-width: 100px;
}

.page-about__promo-box,
.page-about__info-card,
.page-about__warning-card {
  background-color: #ffffff;
  border-left: 5px solid #E53935;
  border-radius: 8px;
  padding: 30px;
  margin: 40px 0;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: #333333;
}

.page-about__promo-title,
.page-about__info-card-title,
.page-about__warning-card-title {
  font-size: 1.8em;
  color: #E53935;
  margin-bottom: 15px;
  font-weight: bold;
}

.page-about__promo-box p,
.page-about__info-card p,
.page-about__warning-card p {
  font-size: 1.05em;
  margin-bottom: 20px;
}

.page-about__join-us {
  text-align: center;
  padding-top: 60px;
  padding-bottom: 80px;
  background-color: #F5F7FA;
}

.page-about__join-text {
  font-size: 1.2em;
  color: #333333;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Mobile Responsive Styles */
@media (max-width: 768px) {
  .page-about {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-about__container,
  .page-about__article-wrap {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  /* 1. 顶区标题 + 双 CTA */
  .page-about__top-section {
    padding-top: 10px !important; /* Small top padding, assuming body has header offset */
    padding-bottom: 30px;
  }

  .page-about__main-title {
    font-size: 2em;
    margin-bottom: 10px;
  }

  .page-about__intro-text {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-about__btn {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }

  .page-about__btn-large {
    min-width: unset;
    padding: 14px 25px;
    font-size: 1.1em;
  }

  /* 2. 单栏长文容器 */
  .page-about__section {
    padding: 40px 0;
  }

  .page-about__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-about__section p {
    font-size: 0.95em;
  }

  .page-about__value-list li,
  .page-about__commitment-list li,
  .page-about__product-list li,
  .page-about__advantages-list li,
  .page-about__responsibility-list li {
    flex-direction: column;
    align-items: flex-start;
    padding: 15px;
    margin-bottom: 10px;
    font-size: 0.95em;
  }

  .page-about__value-list li strong,
  .page-about__commitment-list li strong,
  .page-about__product-list li strong,
  .page-about__advantages-list li strong,
  .page-about__responsibility-list li strong {
    min-width: unset;
    margin-bottom: 5px;
  }

  .page-about__promo-box,
  .page-about__info-card,
  .page-about__warning-card {
    padding: 20px;
    margin: 30px 0;
  }

  .page-about__promo-title,
  .page-about__info-card-title,
  .page-about__warning-card-title {
    font-size: 1.5em;
    margin-bottom: 10px;
  }

  .page-about__promo-box p,
  .page-about__info-card p,
  .page-about__warning-card p {
    font-size: 0.95em;
    margin-bottom: 15px;
  }

  /* 3. 通用图片与 figure */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
  }

  .page-about__figure {
    margin: 20px auto;
  }

  /* 4. 按钮与按钮容器 - 已包含在顶区CTA和通用按钮规则中 */
  .page-about__cta-buttons,
  .page-about__join-us .page-about__cta-buttons {
    flex-direction: column !important;
    gap: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 5. 注册教程与 FAQ 区块 - Not directly applicable to this page's outline but general text rules apply */
  .page-about__join-text {
    font-size: 1.05em;
    margin-bottom: 30px;
  }
}