/* style/about.css */

:root {
  --color-primary: #11A84E;
  --color-secondary: #22C768;
  --color-text-main: #F2FFF6;
  --color-text-secondary: #A7D9B8;
  --color-bg-dark: #08160F;
  --color-card-bg: #11271B;
  --color-border: #2E7A4E;
  --color-glow: #57E38D;
  --color-gold: #F2C14E;
  --color-divider: #1E3A2A;
  --color-deep-green: #0A4B2C;
  --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */
.page-about {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-text-main); /* Default text color for dark background */
  background-color: var(--color-bg-dark); /* Ensure consistency with shared.css body background */
}

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

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

.page-about__dark-section {
  background-color: var(--color-bg-dark);
  color: var(--color-text-main);
}

.page-about__light-bg {
  background-color: #ffffff;
  color: #333333;
}

.page-about__section-title {
  font-size: 2.5em;
  margin-bottom: 30px;
  font-weight: bold;
  color: var(--color-primary);
}

.page-about__section-title--light {
  color: var(--color-text-main);
}

.page-about__section-description {
  font-size: 1.1em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-text-secondary);
}

.page-about__section-description--light {
  color: var(--color-text-main);
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* body handles top padding, this is extra visual space */
  min-height: 600px;
  overflow: hidden;
}

.page-about__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.page-about__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5); /* Darken image for text readability */
}

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  text-align: center;
  padding: 20px;
}

.page-about__main-title {
  font-size: clamp(2em, 4vw, 3.5em); /* Use clamp for responsive H1 */
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-gold);
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.page-about__hero-description {
  font-size: 1.2em;
  color: var(--color-text-main);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.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: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: var(--btn-gradient);
  color: #ffffff;
  border: none;
}

.page-about__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

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

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

/* Content Grid Sections */
.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  text-align: left;
}

.page-about__content-grid--reversed {
  grid-template-areas: "image text";
}

.page-about__content-grid--reversed .page-about__image-wrapper {
  grid-area: image;
}

.page-about__content-grid--reversed .page-about__text-block {
  grid-area: text;
}

.page-about__text-block p {
  margin-bottom: 1em;
  font-size: 1.05em;
  color: inherit; /* Inherit from section for contrast */
}

.page-about__text-block--light p {
  color: var(--color-text-main);
}

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

.page-about__image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  object-fit: cover; /* Ensure images fill their space */
}

/* Values List */
.page-about__values-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-about__values-item {
  background-color: var(--color-card-bg);
  color: var(--color-text-main);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease;
  border: 1px solid var(--color-border);
}

.page-about__values-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__icon {
  width: 80px; /* Min size 200px is for content display images, not small decorative icons */
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
  filter: drop-shadow(0 0 5px var(--color-glow));
}

.page-about__values-title {
  font-size: 1.5em;
  color: var(--color-gold);
  margin-bottom: 15px;
}

.page-about__values-item p {
  font-size: 1em;
  color: var(--color-text-secondary);
}

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

.page-about__product-card {
  background-color: var(--color-card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-about__product-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-about__product-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-bottom: 1px solid var(--color-divider);
}

.page-about__product-card h3 {
  font-size: 1.4em;
  color: var(--color-gold);
  margin: 20px 15px 10px 15px;
}

.page-about__product-card p {
  font-size: 0.95em;
  color: var(--color-text-secondary);
  padding: 0 15px 20px 15px;
  flex-grow: 1;
}

.page-about__product-card .page-about__btn-secondary {
  margin: 0 15px 20px 15px;
  width: calc(100% - 30px);
}

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

.page-about__advantage-item {
  background-color: #ffffff;
  color: #333333;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: left;
  border-left: 5px solid var(--color-primary);
}

.page-about__advantage-item h3 {
  font-size: 1.3em;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.page-about__advantage-item p {
  font-size: 0.95em;
  color: #555555;
}

.page-about__image-wrapper--full-width {
  margin-top: 60px;
}

.page-about__image-wrapper--full-width .page-about__image {
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

/* Call to Action Bottom */
.page-about__cta-bottom {
  padding: 80px 0;
}

.page-about__cta-content {
  max-width: 800px;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-about__content-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .page-about__content-grid--reversed {
    grid-template-areas: unset;
  }
}

@media (max-width: 768px) {
  .page-about__section {
    padding: 40px 0;
  }

  .page-about__hero-section {
    min-height: 500px;
    padding-bottom: 40px;
  }

  .page-about__main-title {
    font-size: clamp(2em, 8vw, 3em);
  }

  .page-about__hero-description {
    font-size: 1em;
  }

  .page-about__section-title {
    font-size: 2em;
    margin-bottom: 20px;
  }

  .page-about__section-description {
    font-size: 1em;
    margin-bottom: 30px;
  }

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

  .page-about__btn-primary,
  .page-about__btn-secondary {
    width: 100% !important;
    padding: 12px 20px;
  }

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

  /* Mobile image responsiveness */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  .page-about__image-wrapper,
  .page-about__hero-image-wrapper,
  .page-about__product-card,
  .page-about__values-item,
  .page-about__advantage-item,
  .page-about__container,
  .page-about__section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important; /* Ensure no horizontal scroll */
  }

  /* Specific padding for content containers on mobile */
  .page-about__section:not(.page-about__hero-section) .page-about__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .page-about__hero-section {
    padding-top: 10px !important; /* body already handles --header-offset */
  }

  /* Icon sizing for mobile, ensuring it's not too small */
  .page-about__icon {
    width: 60px;
    height: 60px;
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(1.8em, 10vw, 2.5em);
  }

  .page-about__section-title {
    font-size: 1.8em;
  }

  .page-about__btn-primary,
  .page-about__btn-secondary {
    font-size: 1em;
  }
}