:root {
  --primary-color: #FF8C1A;
  --secondary-color: #FFA53A;
  --text-main-color: #FFF3E6;
  --bg-color: #0D0E12;
  --card-bg-color: #17191F;
  --border-color: #A84F0C;
  --glow-color: #FFB04D;
  --deep-orange-color: #D96800;
}

.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main-color); /* Light text on dark body background */
  background-color: var(--bg-color);
}

.page-about__section {
  padding: 60px 20px;
  text-align: center;
  position: relative;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-about__section-title {
  font-size: 36px;
  font-weight: bold;
  margin-bottom: 40px;
  color: var(--secondary-color);
  text-shadow: 0 0 8px rgba(255, 165, 58, 0.4);
}

.page-about h1, .page-about h2, .page-about h3, .page-about h4, .page-about h5, .page-about h6 {
  color: var(--text-main-color);
}

.page-about p {
  margin-bottom: 15px;
  font-size: 17px;
  color: var(--text-main-color);
}

.page-about a {
  color: var(--secondary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-about a:hover {
  color: var(--glow-color);
  text-decoration: underline;
}

/* HERO主图区域样式 */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  background-color: var(--bg-color);
  overflow: hidden;
}

.page-about__hero-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.page-about__hero-image {
  width: 100%;
  margin-bottom: 30px;
}

.page-about__hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.page-about__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  padding: 0 15px;
  box-sizing: border-box;
}

.page-about__main-title {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-main-color);
  margin-bottom: 20px;
  text-shadow: 0 0 10px rgba(255, 140, 26, 0.7);
}

.page-about__hero-description {
  font-size: 18px;
  max-width: 800px;
  margin: 0 auto 30px auto;
  color: var(--text-main-color);
  opacity: 0.9;
}

.page-about__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 50px;
  font-size: 18px;
  font-weight: bold;
  margin-top: 30px;
  transition: all 0.3s ease;
  box-shadow: 0 8px 25px rgba(255, 140, 26, 0.4);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__cta-button:hover {
  background: linear-gradient(180deg, var(--glow-color) 0%, var(--primary-color) 100%);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px rgba(255, 140, 26, 0.6);
}

.page-about__cta-button--large {
  padding: 18px 50px;
  font-size: 20px;
}

/* Intro Section */
.page-about__intro-section {
  background-color: var(--bg-color);
}

/* History Section */
.page-about__history-section {
  background-color: var(--bg-color);
}

.page-about__image-block {
  margin: 40px auto;
  max-width: 800px;
}

.page-about__image-block img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  max-width: 100%;
  display: block;
}

/* Offerings Section */
.page-about__offerings-section {
  background-color: var(--bg-color);
}

.page-about__offerings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__offering-card {
  background-color: var(--card-bg-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: left;
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.page-about__offering-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(255, 140, 26, 0.3);
}

.page-about__offering-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  max-width: 100%;
  display: block;
}

.page-about__card-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--secondary-color);
  flex-grow: 1;
}

.page-about__offering-card p {
  font-size: 16px;
  color: var(--text-main-color);
  opacity: 0.8;
}

/* Security Section */
.page-about__security-section {
  background-color: var(--bg-color);
}

.page-about__security-content {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  text-align: left;
}

.page-about__security-text,
.page-about__security-image {
  flex: 1;
  min-width: 300px;
}

.page-about__security-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  max-width: 100%;
  display: block;
}

/* Support Section */
.page-about__support-section {
  background-color: var(--bg-color);
}

.page-about__support-content {
  display: flex;
  flex-wrap: wrap-reverse; /* Image then text on desktop, text then image on mobile */
  align-items: center;
  gap: 40px;
  text-align: left;
}

.page-about__support-text,
.page-about__support-image {
  flex: 1;
  min-width: 300px;
}

.page-about__support-image img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  max-width: 100%;
  display: block;
}

/* Promotions Section */
.page-about__promotions-section {
  background-color: var(--bg-color);
}

.page-about__promotions-list {
  list-style: none;
  padding: 0;
  margin: 40px auto;
  max-width: 800px;
  text-align: left;
}

.page-about__promotions-list li {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 15px;
  font-size: 17px;
  color: var(--text-main-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  transition: transform 0.2s ease;
}

.page-about__promotions-list li:hover {
  transform: translateX(5px);
}

.page-about__promotions-list strong {
  color: var(--secondary-color);
}

.page-about__btn-primary {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, var(--secondary-color) 0%, var(--deep-orange-color) 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 50px;
  font-size: 16px;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(255, 140, 26, 0.3);
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary:hover {
  background: linear-gradient(180deg, var(--glow-color) 0%, var(--primary-color) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 140, 26, 0.5);
}

/* Why Choose Section */
.page-about__why-choose-section {
  background-color: var(--card-bg-color);
  color: var(--text-main-color);
}

.page-about__why-choose-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__why-choose-item {
  background-color: var(--bg-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
  border: 1px solid var(--border-color);
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-about__why-choose-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(255, 140, 26, 0.3);
}

.page-about__why-choose-item img {
  
  
  object-fit: contain;
  margin-bottom: 20px;
  max-width: 100%;
  display: block;
}

.page-about__why-choose-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--secondary-color);
}

.page-about__why-choose-item p {
  font-size: 15px;
  color: var(--text-main-color);
  opacity: 0.8;
}

/* FAQ Section */
details.page-about__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg-color);
  text-align: left;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

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, 140, 26, 0.1);
}

.page-about__faq-qtext {
  flex: 1;
  font-size: 18px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-main-color);
}

.page-about__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  color: var(--secondary-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 30px;
  text-align: center;
}

details.page-about__faq-item[open] .page-about__faq-question {
  background-color: rgba(255, 140, 26, 0.15);
}

details.page-about__faq-item .page-about__faq-answer {
  padding: 0 20px 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 0 0 8px 8px;
  color: var(--text-main-color);
  opacity: 0.9;
  font-size: 16px;
}

/* CTA Section */
.page-about__cta-section {
  background-color: var(--bg-color);
  padding-bottom: 80px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-about__section-title {
    font-size: 32px;
  }
  .page-about__hero-image img {
    border-radius: 6px;
  }
  .page-about__main-title {
    font-size: 38px;
  }
  .page-about__hero-description {
    font-size: 17px;
  }
  .page-about__cta-button {
    padding: 14px 35px;
    font-size: 17px;
  }
  .page-about__cta-button--large {
    padding: 16px 45px;
    font-size: 18px;
  }
  .page-about__offering-card, .page-about__why-choose-item {
    padding: 25px;
  }
  .page-about__offering-card img {
    
  }
  .page-about__card-title {
    font-size: 20px;
  }
  .page-about__faq-qtext {
    font-size: 17px;
  }
  .page-about__faq-toggle {
    font-size: 26px;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding-top: 10px !important; /* Mobile small top padding */
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__main-title {
    font-size: 30px; /* Adjust h1 for mobile */
  }
  .page-about__hero-image img {
    border-radius: 4px;
  }
  .page-about__section {
    padding: 40px 15px;
  }
  .page-about__section-title {
    font-size: 28px;
    margin-bottom: 30px;
  }
  .page-about p {
    font-size: 16px;
  }
  
  /* Images responsive on mobile */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-about__section, .page-about__card, .page-about__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  /* Buttons responsive on mobile */
  .page-about__cta-button,
  .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-buttons,
  .page-about__button-group,
  .page-about__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }
  .page-about__cta-buttons {
    flex-direction: column; 
  }
  
  .page-about__offering-card {
    padding: 20px;
  }
  .page-about__offering-card img {
    
  }
  .page-about__card-title {
    font-size: 18px;
  }
  .page-about__promotions-list li {
    padding: 15px;
    font-size: 16px;
  }
  .page-about__why-choose-item {
    padding: 20px;
  }
  .page-about__why-choose-item img {
    
    
  }
  .page-about__why-choose-item h3 {
    font-size: 18px;
  }
  .page-about__why-choose-item p {
    font-size: 14px;
  }
  details.page-about__faq-item summary.page-about__faq-question {
    padding: 15px;
  }
  .page-about__faq-qtext {
    font-size: 16px;
  }
  .page-about__faq-toggle {
    font-size: 24px;
  }
  details.page-about__faq-item .page-about__faq-answer {
    padding: 0 15px 15px;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: 26px;
  }
  .page-about__hero-description {
    font-size: 15px;
  }
  .page-about__cta-button {
    padding: 12px 25px;
    font-size: 16px;
  }
  .page-about__cta-button--large {
    padding: 14px 30px;
    font-size: 17px;
  }
  .page-about__section-title {
    font-size: 24px;
  }
  .page-about__offering-card img {
    
  }
  .page-about__offering-card {
    padding: 15px;
  }
  .page-about__card-title {
    font-size: 16px;
  }
  .page-about__why-choose-item img {
    
    
  }
  .page-about__why-choose-item h3 {
    font-size: 16px;
  }
  .page-about__faq-qtext {
    font-size: 15px;
  }
  .page-about__faq-toggle {
    font-size: 22px;
  }
}