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

/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */
.page-download {
  color: var(--text-main);
  background-color: var(--background);
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  overflow-x: hidden; /* Prevent horizontal scroll for the entire page */
}

.page-download__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 10px 20px 60px; /* Small top padding, more bottom padding */
  background-color: var(--card-bg);
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
}

.page-download__hero-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-download__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--text-main);
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-download__description {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  min-width: 200px;
  max-width: 100%; /* Important for mobile responsiveness */
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-download__btn-primary {
  background: var(--button);
  color: var(--text-main);
  border: 2px solid transparent;
}

.page-download__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

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

.page-download__btn-secondary:hover {
  background: var(--gold);
  color: var(--card-bg);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

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

.page-download__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--text-main);
  text-align: center;
  margin-bottom: 40px;
  font-weight: bold;
}

.page-download__text-block {
  font-size: 1rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-download__dark-section {
  background-color: var(--card-bg);
  padding: 80px 0;
  color: var(--text-main);
}

.page-download__why-app-section {
  padding-top: 80px;
  padding-bottom: 80px;
}

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

.page-download__feature-card {
  background-color: var(--deep-green);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--text-main);
}

.page-download__feature-icon {
  width: 100%;
  max-width: 250px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
}

.page-download__feature-title {
  font-size: 1.5rem;
  color: var(--gold);
  margin-bottom: 15px;
  font-weight: bold;
}

.page-download__feature-text {
  font-size: 1rem;
  color: var(--text-secondary);
}

.page-download__how-to-download-section {
  padding: 80px 0;
  background-color: var(--background);
  color: var(--text-main);
}

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

.page-download__step-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  color: var(--text-main);
}

.page-download__step-image {
  width: 100%;
  height: auto;
  max-width: 400px;
  margin: 0 auto 20px;
  display: block;
  border-radius: 8px;
}

.page-download__step-title {
  font-size: 1.6rem;
  color: var(--gold);
  margin-bottom: 15px;
  font-weight: bold;
}

.page-download__step-text {
  font-size: 1rem;
  color: var(--text-secondary);
}

.page-download__qr-code-wrapper {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.page-download__qr-code {
  width: 100%;
  max-width: 200px;
  height: auto;
  border: 5px solid var(--text-main); /* White border for QR code */
  border-radius: 5px;
}

.page-download__btn-small {
  padding: 10px 20px;
  font-size: 0.95rem;
  min-width: unset;
}

.page-download__app-features-section {
  padding-top: 80px;
  padding-bottom: 80px;
}

.page-download__app-showcase {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  align-items: center;
  margin-top: 40px;
}

.page-download__app-screenshot-wrapper {
  flex: 1 1 45%;
  min-width: 300px;
  text-align: center;
}

.page-download__app-screenshot {
  width: 100%;
  height: auto;
  max-width: 600px;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0,0,0,0.4);
}

.page-download__feature-list {
  flex: 1 1 45%;
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.page-download__feature-item {
  background-color: var(--deep-green);
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  color: var(--text-main);
}

.page-download__feature-item-title {
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: 10px;
  font-weight: bold;
}

.page-download__feature-item-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.page-download__faq-section {
  padding: 80px 0;
  background-color: var(--background);
  color: var(--text-main);
}

.page-download__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-download__faq-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  color: var(--text-main);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--text-main);
  background-color: var(--deep-green);
  border-bottom: 1px solid var(--divider);
  list-style: none; /* Remove default marker */
}

.page-download__faq-question:hover {
  background-color: rgba(var(--deep-green-rgb), 0.8); /* Using RGB for hover effect */
}

.page-download__faq-qtext {
  flex-grow: 1;
}

.page-download__faq-toggle {
  font-size: 1.5rem;
  margin-left: 15px;
  color: var(--gold);
  transition: transform 0.3s ease;
}

.page-download__faq-item[open] .page-download__faq-toggle {
  transform: rotate(45deg); /* Rotate for 'x' or 'minus' effect */
}

.page-download__faq-answer {
  padding: 20px 25px;
  font-size: 1rem;
  color: var(--text-secondary);
  background-color: var(--card-bg);
  line-height: 1.6;
}

/* Hide default details arrow */
.page-download__faq-item summary::-webkit-details-marker {
  display: none;
}
.page-download__faq-item summary::marker {
  display: none;
}

.page-download__cta-bottom-section {
  padding-top: 80px;
  padding-bottom: 80px;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .page-download__hero-section {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__container {
    padding: 0 15px;
  }
  .page-download__app-showcase {
    flex-direction: column;
  }
  .page-download__app-screenshot-wrapper,
  .page-download__feature-list {
    min-width: unset;
    width: 100%;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding-top: 10px !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }

  .page-download__main-title {
    font-size: clamp(2rem, 8vw, 2.5rem);
  }

  .page-download__description {
    font-size: 1rem;
  }

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

  .page-download__btn-primary,
  .page-download__btn-secondary {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
  }
  
  .page-download__why-app-section,
  .page-download__how-to-download-section,
  .page-download__app-features-section,
  .page-download__faq-section,
  .page-download__cta-bottom-section {
    padding-top: 40px !important;
    padding-bottom: 40px !important;
  }

  .page-download__section-title {
    font-size: clamp(1.8rem, 7vw, 2.2rem);
    margin-bottom: 30px;
  }

  .page-download__text-block {
    font-size: 0.95rem;
    margin-bottom: 20px;
  }

  .page-download__features-grid,
  .page-download__download-steps {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .page-download__feature-card,
  .page-download__step-item,
  .page-download__faq-item {
    padding: 20px !important;
  }

  .page-download__feature-title,
  .page-download__step-title {
    font-size: 1.3rem;
  }

  .page-download__feature-item-title {
    font-size: 1.2rem;
  }

  .page-download__faq-question {
    font-size: 1rem;
    padding: 15px 20px !important;
  }

  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-download__section,
  .page-download__card,
  .page-download__container,
  .page-download__hero-section,
  .page-download__why-app-section,
  .page-download__how-to-download-section,
  .page-download__app-features-section,
  .page-download__faq-section,
  .page-download__cta-bottom-section,
  .page-download__hero-image-wrapper,
  .page-download__video-section,
  .page-download__video-container,
  .page-download__video-wrapper,
  .page-download__cta-buttons,
  .page-download__button-group,
  .page-download__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    overflow: hidden !important;
  }
}