/* style/download.css */
/* body 已 padding-top: var(--header-offset)；页面禁止再写该变量 */

:root {
  --page-download-primary-color: #26A9E0;
  --page-download-secondary-color: #FFFFFF;
  --page-download-dark-bg: #0a0a0a; /* Body background from shared.css */
  --page-download-text-light: #ffffff;
  --page-download-text-dark: #333333;
  --page-download-login-color: #EA7C07;
}

.page-download {
  color: var(--page-download-text-light); /* Default text color for dark body background */
  background-color: var(--page-download-dark-bg);
}

.page-download__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  background-color: var(--page-download-dark-bg);
  text-align: center;
  overflow: hidden;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  position: relative;
  margin-bottom: 20px;
}

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

.page-download__hero-content {
  max-width: 900px;
  z-index: 1;
  padding: 0 20px;
}

.page-download__main-title {
  font-size: clamp(2em, 3.5vw, 3.2em);
  font-weight: 700;
  line-height: 1.2;
  color: var(--page-download-text-light);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.page-download__description {
  font-size: 1.1em;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 30px;
}

.page-download__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-download__btn-primary,
.page-download__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.05em;
  transition: all 0.3s ease;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
  box-sizing: border-box;
  max-width: 100%;
}

.page-download__btn-primary {
  background-color: var(--page-download-primary-color);
  color: var(--page-download-text-light);
  border: 2px solid var(--page-download-primary-color);
}

.page-download__btn-primary:hover {
  background-color: #1e87c0;
  border-color: #1e87c0;
}

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

.page-download__btn-secondary:hover {
  background-color: var(--page-download-primary-color);
  color: var(--page-download-text-light);
}

.page-download__why-download-section {
  padding: 80px 0;
  background-color: var(--page-download-secondary-color);
  color: var(--page-download-text-dark);
}

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

.page-download__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--page-download-primary-color);
}

.page-download__section-description {
  font-size: 1.1em;
  line-height: 1.6;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 50px auto;
  color: var(--page-download-text-dark);
}

.page-download__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.page-download__feature-card {
  background: #f8f8f8;
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  min-height: 250px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  color: var(--page-download-text-dark);
}

.page-download__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.page-download__feature-icon {
  width: 100%;
  height: auto;
  max-width: 250px;
  max-height: 200px;
  object-fit: contain;
  margin-bottom: 20px;
}

.page-download__card-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--page-download-primary-color);
}

.page-download__card-text {
  font-size: 1em;
  line-height: 1.5;
  color: var(--page-download-text-dark);
}

.page-download__platform-guide-section {
  padding: 80px 0;
  background-color: var(--page-download-dark-bg);
  color: var(--page-download-text-light);
}

.page-download__guide-block {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-bottom: 60px;
  align-items: center;
}

.page-download__guide-block:nth-child(even) {
  flex-direction: column-reverse; /* Image above text for even blocks on mobile */
}

@media (min-width: 769px) {
  .page-download__guide-block {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
  .page-download__guide-block:nth-child(even) {
    flex-direction: row-reverse;
  }
}

.page-download__guide-title {
  font-size: 2em;
  font-weight: 700;
  color: var(--page-download-primary-color);
  margin-bottom: 30px;
  text-align: center;
  width: 100%;
}

@media (min-width: 769px) {
  .page-download__guide-title {
    text-align: left;
  }
}

.page-download__guide-steps {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.page-download__step-item {
  display: flex;
  align-items: flex-start;
  gap: 15px;
}

.page-download__step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 35px;
  height: 35px;
  min-width: 35px;
  min-height: 35px;
  background-color: var(--page-download-primary-color);
  color: var(--page-download-text-light);
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.2em;
}

.page-download__step-text {
  flex: 1;
  font-size: 1.05em;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.85);
}

.page-download__guide-image {
  flex: 1;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  object-fit: contain;
  min-width: 200px;
  min-height: 200px;
}

.page-download__cta-center {
  text-align: center;
  margin-top: 40px;
}

.page-download__features-app-section {
  padding: 80px 0;
  background-color: var(--page-download-secondary-color);
  color: var(--page-download-text-dark);
  text-align: center;
}

.page-download__app-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.page-download__app-feature-item {
  background: #f8f8f8;
  border-radius: 10px;
  padding: 25px;
  text-align: left;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  min-height: 150px;
  color: var(--page-download-text-dark);
}

.page-download__app-feature-item .page-download__card-title {
  color: var(--page-download-primary-color);
  margin-bottom: 10px;
}

.page-download__app-screenshot {
  width: 100%;
  max-width: 800px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  object-fit: contain;
  min-width: 200px;
  min-height: 200px;
}

.page-download__faq-section {
  padding: 80px 0;
  background-color: var(--page-download-dark-bg);
  color: var(--page-download-text-light);
}

.page-download__faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.page-download__faq-item {
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  overflow: hidden;
  transition: background-color 0.3s ease;
  color: var(--page-download-text-light);
}

.page-download__faq-item:hover {
  background-color: rgba(255, 255, 255, 0.12);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1.1em;
  color: var(--page-download-text-light);
  -webkit-touch-callout: none; /* iOS Safari */
  -webkit-user-select: none;   /* Safari */
  -khtml-user-select: none;    /* Konqueror HTML */
  -moz-user-select: none;      /* Old versions of Firefox */
  -ms-user-select: none;       /* Internet Explorer/Edge */
  user-select: none;           /* Non-prefixed version, currently supported by Chrome, Edge, Opera and Firefox */
}

.page-download__faq-item summary {
  list-style: none;
}

.page-download__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--page-download-primary-color);
  transition: transform 0.3s ease;
}

.page-download__faq-item[open] .page-download__faq-toggle {
  transform: rotate(45deg); /* Change + to X or - */
}

.page-download__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1em;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.7);
}

.page-download__cta-final-section {
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--page-download-primary-color), #1a7bb0);
  text-align: center;
  color: var(--page-download-text-light);
}

.page-download__cta-final-section .page-download__section-title {
  color: var(--page-download-text-light);
  margin-bottom: 25px;
}

.page-download__cta-final-section .page-download__section-description {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 40px;
}

.page-download__btn-large {
  padding: 16px 35px;
  font-size: 1.2em;
  border-radius: 10px;
  background-color: var(--page-download-login-color);
  border-color: var(--page-download-login-color);
}

.page-download__btn-large:hover {
  background-color: #c76500;
  border-color: #c76500;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-download__main-title {
    font-size: clamp(2em, 4.5vw, 3em);
  }
  .page-download__hero-content {
    padding: 0 15px;
  }
  .page-download__section-title {
    font-size: 2.2em;
  }
}

@media (max-width: 768px) {
  .page-download__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* body handles header offset */
  }
  .page-download__main-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
  }
  .page-download__description {
    font-size: 1em;
  }
  .page-download__cta-buttons {
    flex-direction: column;
    gap: 10px;
  }
  .page-download__btn-primary,
  .page-download__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    box-sizing: border-box !important;
  }
  .page-download__why-download-section,
  .page-download__platform-guide-section,
  .page-download__features-app-section,
  .page-download__faq-section,
  .page-download__cta-final-section {
    padding: 50px 0;
  }
  .page-download__container {
    padding: 0 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  .page-download__section-title {
    font-size: 1.8em;
  }
  .page-download__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }
  .page-download__guide-block {
    gap: 30px;
  }
  .page-download__guide-title {
    font-size: 1.6em;
    text-align: center;
  }
  .page-download__step-text {
    font-size: 0.95em;
  }
  .page-download__app-features-grid {
    gap: 20px;
  }
  .page-download__app-feature-item {
    padding: 20px;
  }
  .page-download__card-title {
    font-size: 1.2em;
  }
  .page-download__faq-question {
    font-size: 1em;
    padding: 15px 20px;
  }
  .page-download__faq-answer {
    padding: 0 20px 15px 20px;
    font-size: 0.95em;
  }
  .page-download__btn-large {
    font-size: 1.05em !important;
    padding: 14px 25px !important;
  }
  
  /* Mobile image responsiveness */
  .page-download img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  /* Ensure all image containers are responsive */
  .page-download__hero-image-wrapper,
  .page-download__feature-card,
  .page-download__guide-block,
  .page-download__app-features-grid {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
}

@media (max-width: 480px) {
  .page-download__hero-section {
    padding: 30px 10px;
    padding-top: 10px !important; /* body handles header offset */
  }
  .page-download__main-title {
    font-size: clamp(1.6em, 7vw, 2.2em);
  }
  .page-download__cta-buttons {
    flex-direction: column;
  }
  .page-download__section-title {
    font-size: 1.6em;
  }
  .page-download__feature-card {
    padding: 20px;
  }
  .page-download__guide-block {
    padding: 0 10px;
  }
  .page-download__faq-question {
    padding: 12px 15px;
    font-size: 0.95em;
  }
  .page-download__faq-answer {
    padding: 0 15px 12px 15px;
    font-size: 0.9em;
  }
}