/* style/app-download-guide.css */
/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */
.page-app-download-guide {
  font-family: 'Arial', sans-serif;
  color: var(--text-main-color, #F2FFF6); /* Default text color for dark body background */
  background-color: var(--background-color, #08160F); /* Ensure consistency with body background */
}

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

.page-app-download-guide__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 0;
  padding-top: 10px; /* Small top padding, body handles header offset */
  text-align: center;
  overflow: hidden;
}

.page-app-download-guide__hero-image-wrapper {
  width: 100%;
  max-height: 700px; /* Limit height for hero image */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 20px; /* Space between image and content */
}

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

.page-app-download-guide__hero-content {
  max-width: 800px;
  margin-top: 20px; /* Adjusted margin-top after image */
  z-index: 1; /* Ensure content is above image if any overlap */
}

.page-app-download-guide__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 20px;
}

.page-app-download-guide__description {
  font-size: 1.1em;
  color: var(--text-secondary-color, #A7D9B8);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-app-download-guide__btn-primary,
.page-app-download-guide__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 0.3s ease, transform 0.3s ease;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
  box-sizing: border-box;
  max-width: 100%;
}

.page-app-download-guide__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-app-download-guide__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(42, 209, 111, 0.4);
}

.page-app-download-guide__btn-secondary {
  background: transparent;
  color: var(--text-main-color, #F2FFF6);
  border: 2px solid var(--border-color, #2E7A4E);
}

.page-app-download-guide__btn-secondary:hover {
  background: var(--deep-green-color, #0A4B2C);
  transform: translateY(-3px);
}

.page-app-download-guide__intro-section,
.page-app-download-guide__download-guide-section,
.page-app-download-guide__faq-section {
  padding: 80px 0;
  text-align: center;
}

.page-app-download-guide__features-section,
.page-app-download-guide__cta-bottom-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--card-bg-color, #11271B);
}

.page-app-download-guide__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.8em);
  font-weight: 700;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 40px;
}

.page-app-download-guide__paragraph {
  font-size: 1em;
  line-height: 1.8;
  color: var(--text-secondary-color, #A7D9B8);
  max-width: 900px;
  margin: 0 auto 20px auto;
}

.page-app-download-guide__feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-app-download-guide__card {
  background-color: var(--card-bg-color, #11271B);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-main-color, #F2FFF6);
  border: 1px solid var(--border-color, #2E7A4E);
}

.page-app-download-guide__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-app-download-guide__card-title {
  font-size: 1.5em;
  font-weight: 600;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 10px;
}

.page-app-download-guide__card-text {
  font-size: 0.95em;
  color: var(--text-secondary-color, #A7D9B8);
  line-height: 1.6;
}

.page-app-download-guide__guide-card {
  background-color: var(--card-bg-color, #11271B);
  border-radius: 12px;
  padding: 40px;
  margin-bottom: 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color, #2E7A4E);
}

.page-app-download-guide__guide-title {
  font-size: 2em;
  font-weight: 700;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 30px;
}

.page-app-download-guide__guide-steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  text-align: left;
}

.page-app-download-guide__step-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
}

.page-app-download-guide__step-icon {
  flex-shrink: 0;
  width: 100px;
  height: 100px;
  object-fit: contain;
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.05);
  padding: 10px;
}

.page-app-download-guide__step-content {
  flex-grow: 1;
}

.page-app-download-guide__step-title {
  font-size: 1.3em;
  font-weight: 600;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 10px;
}

.page-app-download-guide__step-text {
  font-size: 1em;
  color: var(--text-secondary-color, #A7D9B8);
  line-height: 1.7;
}

.page-app-download-guide__btn-download {
  margin-top: 40px;
  width: auto;
}

.page-app-download-guide__feature-list {
  list-style: none;
  padding: 0;
  margin: 50px auto 0 auto;
  max-width: 1000px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  text-align: left;
}

.page-app-download-guide__feature-item {
  background-color: var(--background-color, #08160F);
  border-radius: 12px;
  padding: 30px;
  border: 1px solid var(--border-color, #2E7A4E);
}

.page-app-download-guide__feature-heading {
  font-size: 1.4em;
  font-weight: 600;
  color: var(--text-main-color, #F2FFF6);
  margin-bottom: 15px;
}

.page-app-download-guide__feature-description {
  font-size: 0.95em;
  color: var(--text-secondary-color, #A7D9B8);
  line-height: 1.6;
}

.page-app-download-guide__btn-explore {
  margin-top: 50px;
}

.page-app-download-guide__faq-list {
  margin-top: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  text-align: left;
}

.page-app-download-guide__faq-item {
  background-color: var(--card-bg-color, #11271B);
  border: 1px solid var(--border-color, #2E7A4E);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-app-download-guide__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15em;
  font-weight: 600;
  color: var(--text-main-color, #F2FFF6);
  cursor: pointer;
  background-color: var(--deep-green-color, #0A4B2C);
  user-select: none;
  list-style: none; /* For details summary */
}

.page-app-download-guide__faq-question::-webkit-details-marker {
  display: none; /* Hide default marker for details summary */
}

.page-app-download-guide__faq-qtext {
  flex-grow: 1;
}

.page-app-download-guide__faq-toggle {
  font-size: 1.5em;
  font-weight: 700;
  margin-left: 15px;
  color: var(--text-main-color, #F2FFF6);
}

.page-app-download-guide__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1em;
  color: var(--text-secondary-color, #A7D9B8);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding-top 0.3s ease-out;
}

.page-app-download-guide__faq-item[open] .page-app-download-guide__faq-answer {
  max-height: 500px; /* Sufficient height for most answers */
  padding-top: 15px;
}

.page-app-download-guide__btn-final-cta {
  margin-top: 50px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-app-download-guide__hero-section {
    padding: 40px 0;
  }

  .page-app-download-guide__main-title {
    font-size: clamp(1.8em, 5vw, 3em);
  }

  .page-app-download-guide__section-title {
    font-size: clamp(1.6em, 4vw, 2.5em);
  }

  .page-app-download-guide__feature-cards {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }

  .page-app-download-guide__guide-steps {
    gap: 20px;
  }

  .page-app-download-guide__step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .page-app-download-guide__step-icon {
    margin-bottom: 15px;
  }

  .page-app-download-guide__feature-list {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-app-download-guide {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-app-download-guide__hero-section {
    padding: 30px 0;
    padding-top: 10px !important;
  }

  .page-app-download-guide__hero-content {
    margin-top: 30px;
  }

  .page-app-download-guide__main-title {
    font-size: clamp(1.6em, 6vw, 2.5em);
    margin-bottom: 15px;
  }

  .page-app-download-guide__description {
    font-size: 1em;
    margin-bottom: 25px;
  }

  .page-app-download-guide__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

  .page-app-download-guide__btn-primary,
  .page-app-download-guide__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-app-download-guide__intro-section,
  .page-app-download-guide__download-guide-section,
  .page-app-download-guide__features-section,
  .page-app-download-guide__faq-section,
  .page-app-download-guide__cta-bottom-section {
    padding: 40px 0;
  }

  .page-app-download-guide__section-title {
    font-size: clamp(1.5em, 5vw, 2em);
    margin-bottom: 30px;
  }

  .page-app-download-guide__paragraph {
    font-size: 0.95em;
    padding: 0 15px;
  }

  .page-app-download-guide__feature-cards,
  .page-app-download-guide__feature-list {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 0 15px;
  }

  .page-app-download-guide__card,
  .page-app-download-guide__feature-item {
    padding: 25px;
  }

  .page-app-download-guide__card-image {
    height: 180px;
  }

  .page-app-download-guide__guide-card {
    padding: 30px 15px;
    margin: 0 15px 30px 15px;
  }

  .page-app-download-guide__guide-title {
    font-size: 1.6em;
    margin-bottom: 20px;
  }

  .page-app-download-guide__step-item {
    gap: 15px;
  }

  .page-app-download-guide__step-icon {
    width: 80px;
    height: 80px;
  }

  .page-app-download-guide__step-title {
    font-size: 1.1em;
  }

  .page-app-download-guide__step-text {
    font-size: 0.9em;
  }

  .page-app-download-guide__btn-download,
  .page-app-download-guide__btn-explore,
  .page-app-download-guide__btn-final-cta {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1em;
    margin-left: 15px;
    margin-right: 15px;
  }

  .page-app-download-guide__faq-list {
    padding: 0 15px;
  }

  .page-app-download-guide__faq-question {
    padding: 15px 20px;
    font-size: 1em;
  }

  .page-app-download-guide__faq-toggle {
    font-size: 1.2em;
  }

  .page-app-download-guide__faq-answer {
    padding: 0 20px 15px 20px;
    font-size: 0.9em;
  }

  /* Responsive images, videos, containers */
  .page-app-download-guide img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-app-download-guide video,
  .page-app-download-guide__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-app-download-guide__section,
  .page-app-download-guide__card,
  .page-app-download-guide__container,
  .page-app-download-guide__video-section,
  .page-app-download-guide__video-container,
  .page-app-download-guide__video-wrapper,
  .page-app-download-guide__cta-buttons,
  .page-app-download-guide__button-group,
  .page-app-download-guide__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    /* padding-left: 15px; */ /* Handled by individual elements or parent */
    /* padding-right: 15px; */ /* Handled by individual elements or parent */
    overflow: hidden !important;
  }
  .page-app-download-guide__hero-image-wrapper {
    max-height: unset; /* Allow hero image to adjust height */
  }
}