.page-download {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--card-bg);
}

.page-download__article-wrap {
  max-width: 1150px;
  margin: 0 auto;
  padding: 20px;
  box-sizing: border-box;
}

.page-download__hero-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
  padding-top: 10px; /* Small top padding as shared.css handles body padding-top */
  background: linear-gradient(180deg, #113B7A 0%, #08162B 100%);
  color: var(--text-main);
}

.page-download__hero-image-wrap {
  width: 100%;
  max-width: 1600px;
  margin-bottom: 30px;
}

.page-download__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

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

.page-download__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em);
  font-weight: bold;
  margin-bottom: 20px;
  color: var(--gold);
  line-height: 1.2;
}

.page-download__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: var(--text-secondary);
}

.page-download__cta-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 30px;
}

.page-download__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1em;
  transition: all 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-download__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__btn-primary:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  transform: translateY(-2px);
}

.page-download__btn-secondary {
  background: #ffffff;
  color: #113B7A;
  border: 2px solid #113B7A;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-download__btn-secondary:hover {
  background: #f0f0f0;
  color: #1D5FD1;
  transform: translateY(-2px);
}

.page-download__benefits-section,
.page-download__features-section,
.page-download__faq-section {
  padding: 60px 0;
  background-color: var(--card-bg);
  color: var(--text-main);
}

.page-download__how-to-section,
.page-download__security-section,
.page-download__cta-bottom-section {
  padding: 60px 0;
  background-color: var(--deep-navy);
  color: var(--text-main);
}

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

.page-download__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--text-secondary);
}

.page-download__benefit-grid,
.page-download__steps-grid,
.page-download__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
  margin-bottom: 40px;
}

.page-download__benefit-item,
.page-download__feature-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease;
  border: 1px solid var(--border);
}

.page-download__benefit-item:hover,
.page-download__feature-item:hover {
  transform: translateY(-5px);
}

.page-download__benefit-title,
.page-download__feature-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--glow);
}

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

.page-download__step-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: left;
  border: 1px solid var(--border);
}

.page-download__step-number {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--glow);
  margin-bottom: 10px;
}

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

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

.page-download__image-figure {
  margin: 40px auto;
  max-width: 680px;
  text-align: center;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-download__content-image {
  width: 100%;
  height: auto;
  display: block;
}

.page-download__image-caption {
  font-size: 0.9em;
  color: var(--text-secondary);
  padding: 10px 15px;
  background-color: rgba(0, 0, 0, 0.2);
}

.page-download__promo-box {
  background: linear-gradient(90deg, #1D5FD1 0%, #113B7A 100%);
  color: #ffffff;
  padding: 40px;
  border-radius: 12px;
  text-align: center;
  margin-top: 50px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-download__promo-title {
  font-size: 2em;
  font-weight: bold;
  margin-bottom: 15px;
  color: var(--gold);
}

.page-download__promo-text {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: #f0f8ff;
}

.page-download__security-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  margin-bottom: 20px;
  border: 1px solid var(--border);
}

.page-download__security-title {
  font-size: 1.5em;
  font-weight: bold;
  margin-bottom: 10px;
  color: var(--glow);
}

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

.page-download__faq-list {
  margin-top: 40px;
}

.page-download__faq-item {
  background-color: var(--deep-navy);
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--divider);
  overflow: hidden;
}

.page-download__faq-item[open] {
  background-color: var(--card-bg);
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  font-size: 1.2em;
  font-weight: bold;
  cursor: pointer;
  color: var(--text-main);
  background-color: var(--deep-navy);
  transition: background-color 0.3s ease;
  list-style: none;
}

.page-download__faq-item[open] > .page-download__faq-question {
  background-color: var(--card-bg);
  color: var(--glow);
}

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

.page-download__faq-question::marker {
  display: none;
}

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

.page-download__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--glow);
}

.page-download__faq-item[open] .page-download__faq-toggle {
  content: '-';
  color: var(--gold);
}

.page-download__faq-answer {
  padding: 15px 25px 25px;
  font-size: 1em;
  color: var(--text-secondary);
  background-color: var(--card-bg);
  border-top: 1px solid var(--divider);
}

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

/* Custom Colors from prompt */
:root {
  --primary-color: #113B7A;
  --secondary-color: #1D5FD1;
  --card-bg: #10233F;
  --text-main: #F3F8FF;
  --text-secondary: #AFC4E8;
  --border: #244D84;
  --glow: #4FA8FF;
  --gold: #F2C14E;
  --divider: #1B3357;
  --deep-navy: #08162B;
}

/* Desktop specific adjustments */
@media (min-width: 1025px) {
  .page-download__benefit-grid,
  .page-download__feature-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .page-download__steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* Tablet and Mobile styles */
@media (max-width: 1024px) {
  .page-download__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }
  .page-download__section-title {
    font-size: 2em;
  }
  .page-download__hero-description,
  .page-download__section-description {
    font-size: 1em;
  }
  .page-download__benefit-grid,
  .page-download__steps-grid,
  .page-download__feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .page-download__promo-title {
    font-size: 1.8em;
  }
}

/* Mobile styles (max-width: 768px) - Must contain all required blocks */
@media (max-width: 768px) {
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }
  
  /* 1. 顶区标题 + 双 CTA */
  .page-download__hero-section {
    padding-top: 10px !important; /* Small top padding as shared.css handles body padding-top */
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__hero-content {
    padding: 0 15px;
  }
  .page-download__main-title {
    font-size: clamp(1.8em, 7vw, 2.5em) !important;
  }
  .page-download__hero-description {
    font-size: 0.95em;
  }
  .page-download__cta-buttons {
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 10px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-download__btn {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding: 12px 20px;
    font-size: 1em;
  }
  
  /* 2. 单栏长文容器 */
  .page-download__article-wrap {
    padding-left: 15px !important;
    padding-right: 15px !important;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-download__section-title {
    font-size: 1.8em !important;
  }
  .page-download__section-description {
    font-size: 0.95em;
  }
  .page-download__promo-box {
    padding: 30px 20px;
  }
  .page-download__promo-title {
    font-size: 1.5em !important;
  }
  .page-download__promo-text {
    font-size: 0.95em;
  }

  /* 3. 通用图片与 figure */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-download__image-figure {
    margin: 30px auto;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-download__image-caption {
    font-size: 0.85em;
  }
  
  /* 4. 按钮与按钮容器 (already covered in top-cta, but re-emphasize for general buttons) */
  .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: 12px 20px;
    font-size: 1em;
  }
  .page-download__cta-bottom-section .page-download__cta-buttons {
    flex-direction: column !important;
    gap: 10px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 5. 注册教程与 FAQ 区塊 (step grid, benefit grid, feature grid, faq list) */
  .page-download__benefit-grid,
  .page-download__steps-grid,
  .page-download__feature-grid {
    grid-template-columns: 1fr !important; /* Single column */
    gap: 20px;
  }
  .page-download__benefit-item,
  .page-download__feature-item,
  .page-download__step-item,
  .page-download__security-item {
    padding: 20px;
    text-align: left;
  }
  .page-download__benefit-title,
  .page-download__feature-title,
  .page-download__step-title,
  .page-download__security-title {
    font-size: 1.3em;
  }
  .page-download__benefit-text,
  .page-download__feature-text,
  .page-download__step-text,
  .page-download__security-text {
    font-size: 0.95em;
  }
  .page-download__faq-question {
    padding: 15px 20px;
    font-size: 1.1em;
  }
  .page-download__faq-answer {
    padding: 10px 20px 20px;
    font-size: 0.95em;
  }
}