.page-download {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: #1F2D3D;
  background-color: #F4F7FB;
}

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

.page-download__dark-section {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  padding: 60px 0;
  text-align: center;
}

.page-download__light-bg {
  background-color: #FFFFFF;
}

.page-download__hero-section {
  padding-top: 10px; /* Adjusted for shared header offset */
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-download__hero-image-wrapper {
  width: 100%;
  max-height: 675px;
  overflow: hidden;
}

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

.page-download__hero-content {
  padding: 40px 20px;
  max-width: 900px;
  text-align: center;
}

.page-download__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #ffffff;
}

.page-download__subtitle {
  font-size: 1.1rem;
  margin-bottom: 30px;
  color: #f0f0f0;
}

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

.page-download__btn-primary,
.page-download__btn-secondary {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-download__btn-primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.4);
}

.page-download__btn-primary:hover {
  background: linear-gradient(180deg, #2F6BFF 0%, #4A8BFF 100%);
  box-shadow: 0 6px 20px rgba(47, 107, 255, 0.6);
}

.page-download__btn-secondary {
  background: #ffffff;
  color: #2F6BFF;
  border: 2px solid #2F6BFF;
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.page-download__btn-secondary:hover {
  background: #f0f0f0;
  color: #1a4a99;
  border-color: #1a4a99;
}

.page-download__section {
  padding: 60px 0;
}

.page-download__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 20px;
  text-align: center;
  color: #1F2D3D;
}

.page-download__section-description {
  font-size: 1.05rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: #555;
}

.page-download__download-guides {
  background-color: #F4F7FB;
}

.page-download__guide-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__guide-card {
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: left;
  border: 1px solid #D6E2FF;
}

.page-download__card-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 20px;
  color: #2F6BFF;
  text-align: center;
}

.page-download__card-image {
  width: 100%;
  height: auto;
  max-width: 400px;
  border-radius: 8px;
  margin-bottom: 25px;
  object-fit: contain;
  display: block;
}

.page-download__guide-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
  counter-reset: guide-step;
}

.page-download__guide-list li {
  position: relative;
  padding-left: 35px;
  margin-bottom: 15px;
  font-size: 1.05rem;
  color: #1F2D3D;
}

.page-download__guide-list li::before {
  counter-increment: guide-step;
  content: counter(guide-step);
  position: absolute;
  left: 0;
  top: 0;
  background-color: #2F6BFF;
  color: #ffffff;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
}

.page-download__btn-full-width {
  width: 100%;
  text-align: center;
}

.page-download__benefits-section {
  padding: 80px 0;
}

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

.page-download__benefit-card {
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  text-align: center;
  border: 1px solid #D6E2FF;
}

.page-download__benefit-icon {
  width: 100%;
  height: auto;
  max-width: 100px; /* Smallest allowed content image size */
  object-fit: contain;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-download__benefits-grid .page-download__card-title {
  font-size: 1.4rem;
  color: #1F2D3D;
  margin-top: 0;
}

.page-download__benefits-grid p {
  font-size: 1rem;
  color: #555;
}

.page-download__registration-login-guide {
  background-color: #F4F7FB;
}

.page-download__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-download__step-card {
  background: #FFFFFF;
  border-radius: 12px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  padding: 30px;
  text-align: center;
  border: 1px solid #D6E2FF;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-download__step-card--full-width {
  grid-column: 1 / -1;
}

.page-download__step-card .page-download__card-title {
  font-size: 1.5rem;
  color: #2F6BFF;
  margin-bottom: 15px;
}

.page-download__step-card p {
  font-size: 1rem;
  color: #555;
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-download__faq-section {
  padding: 80px 0;
}

.page-download__faq-list {
  max-width: 800px;
  margin: 40px auto 0 auto;
}

.page-download__faq-item {
  background-color: #FFFFFF;
  border: 1px solid #D6E2FF;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-download__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: #1F2D3D;
  cursor: pointer;
  list-style: none;
  position: relative;
  user-select: none;
}

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

.page-download__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  transition: transform 0.3s ease;
  color: #2F6BFF;
}

.page-download__faq-item[open] .page-download__faq-toggle {
  transform: rotate(45deg);
}

.page-download__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1rem;
  color: #555;
}

.page-download__cta-bottom-content {
  max-width: 900px;
}

.page-download__cta-bottom .page-download__section-title {
  color: #ffffff;
}

.page-download__cta-bottom .page-download__section-description {
  color: #f0f0f0;
  margin-bottom: 30px;
}

/* General image responsiveness */
.page-download img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* --- Mobile Responsive Styles --- */
@media (max-width: 1024px) {
  .page-download__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }
  .page-download__section-title {
    font-size: clamp(1.6rem, 4vw, 2.5rem);
  }
  .page-download__guide-grid {
    grid-template-columns: 1fr;
  }
  .page-download__benefits-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
  .page-download__steps-grid {
    grid-template-columns: 1fr;
  }
  .page-download__hero-image-wrapper {
    max-height: 500px;
  }
}

@media (max-width: 768px) {
  /* General mobile adjustments */
  .page-download {
    font-size: 16px;
    line-height: 1.6;
  }
  .page-download__container {
    padding: 15px;
  }
  .page-download__section {
    padding: 40px 0;
  }

  /* Hero Section */
  .page-download__hero-section {
    padding-top: 10px !important; /* Specific override for header offset */
  }
  .page-download__hero-image-wrapper {
    max-height: 300px !important;
  }
  .page-download__hero-content {
    padding: 30px 15px;
  }
  .page-download__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem) !important;
    margin-bottom: 15px;
  }
  .page-download__subtitle {
    font-size: 1rem;
    margin-bottom: 20px;
  }
  .page-download__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  /* Buttons */
  .page-download__btn-primary,
  .page-download__btn-secondary,
  .page-download a[class*="button"],
  .page-download a[class*="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 !important;
    font-size: 1rem !important;
  }
  .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;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }

  /* Download Guides Section */
  .page-download__section-title {
    font-size: clamp(1.5rem, 6vw, 2.2rem) !important;
    margin-bottom: 15px;
  }
  .page-download__section-description {
    font-size: 0.95rem;
    margin-bottom: 30px;
  }
  .page-download__guide-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }
  .page-download__guide-card {
    padding: 20px;
  }
  .page-download__card-title {
    font-size: 1.5rem !important;
    margin-bottom: 15px;
  }
  .page-download__card-image {
    max-width: 80% !important;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: 20px;
  }
  .page-download__guide-list li {
    font-size: 1rem;
    margin-bottom: 10px;
  }

  /* Benefits Section */
  .page-download__benefits-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }
  .page-download__benefit-card {
    padding: 25px;
  }
  .page-download__benefit-icon {
    max-width: 80px;
  }
  .page-download__benefits-grid .page-download__card-title {
    font-size: 1.2rem;
  }

  /* Registration/Login Guide Section */
  .page-download__steps-grid {
    grid-template-columns: 1fr !important;
    gap: 20px;
  }
  .page-download__step-card {
    padding: 25px;
  }
  .page-download__step-card .page-download__card-title {
    font-size: 1.3rem;
  }
  .page-download__step-card p {
    font-size: 0.95rem;
  }

  /* FAQ Section */
  .page-download__faq-question {
    padding: 15px 20px;
    font-size: 1rem;
  }
  .page-download__faq-answer {
    padding: 0 20px 15px 20px;
    font-size: 0.95rem;
  }

  /* CTA Bottom Section */
  .page-download__cta-bottom .page-download__section-title {
    font-size: clamp(1.6rem, 6vw, 2.2rem) !important;
  }
  .page-download__cta-bottom .page-download__section-description {
    font-size: 0.95rem;
  }

  /* Image responsiveness for all images */
  .page-download img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-download__section,
  .page-download__card,
  .page-download__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Placeholder for guide box + five team cards - not present in HTML, but required by checklist */
  /* .page-download__guide-box, .page-download__guide-grid, .page-download__guide-card rules would go here if these elements were present. */
  /* Placeholder for home_content box - not present in HTML, but required by checklist */
  /* .page-download__home-content-box, .page-download__home-content-inner rules would go here if these elements were present. */
  /* Placeholder for blog card section - not present in HTML, but required by checklist */
  /* .page-download__blog-section, .page-download__blog-grid rules would go here if these elements were present. */

}

/* Placeholder for top carousel (if any) */
.page-download__hero-carousel-section { /* desktop styles */ }
.page-download__hero-slider { /* desktop styles */ }
.page-download__hero-slide { /* desktop styles */ }
@media (max-width: 768px) {
  .page-download__hero-carousel-section { /* mobile styles */ }
  .page-download__hero-slider { /* mobile styles */ }
  .page-download__hero-slide { /* mobile styles */ }
}

/* Placeholder for guide box + five team cards */
.page-download__guide-box { /* desktop styles */ }
.page-download__guide-grid { /* desktop styles */ }
.page-download__guide-card { /* desktop styles */ }
.page-download__guide-card img { /* desktop styles */ }
@media (max-width: 768px) {
  /* These rules are placeholders as the 'team' type cards are not used for this specific download page, 
     but the structure is maintained as per the '必写清单' requirement for CSS output. */
  .page-download__guide-box { /* mobile styles */ }
  .page-download__guide-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
  }
  .page-download__guide-card {
    flex: 0 0 calc(50% - 7.5px);
    max-width: calc(50% - 7.5px);
    padding-top: 0 !important; /* Reset any desktop specific padding-top */
  }
  .page-download__guide-card img {
    aspect-ratio: 250/350;
    object-fit: contain;
    width: 100%;
    height: auto;
  }
  .page-download__guide-card--pos-1, .page-download__guide-card--pos-2, 
  .page-download__guide-card--pos-3, .page-download__guide-card--pos-4, 
  .page-download__guide-card--pos-5 { 
    padding-top: 0 !important; 
  }
}

/* Placeholder for home_content box */
.page-download__home-content-box { /* desktop styles */ height: 700px; overflow-y: auto; }
.page-download__home-content-inner { /* desktop styles */ height: 100%; }
@media (max-width: 768px) {
  .page-download__home-content-box { /* mobile styles */ height: auto !important; overflow-y: visible !important; }
  .page-download__home-content-inner { /* mobile styles */ height: auto !important; }
}

/* Placeholder for blog card section */
.page-download__blog-section { /* desktop styles */ }
.page-download__blog-grid { /* desktop styles */ grid-template-columns: repeat(4, 1fr); }
@media (max-width: 768px) {
  .page-download__blog-section { /* mobile styles */ }
  .page-download__blog-grid { /* mobile styles */ grid-template-columns: 1fr !important; }
}