.page-download-center {
  font-family: 'Arial', sans-serif;
  color: #E0E0E0;
  background-color: #0A2239;
  line-height: 1.6;
}

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

.page-download-center__hero-section {
  background: linear-gradient(135deg, #0A2239, #1a3a5a);
  padding: 100px 0;
  text-align: center;
  color: #FFD700;
  position: relative;
  overflow: hidden;
}

.page-download-center__hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
  animation: page-download-center__pulse 15s infinite alternate;
  z-index: 0;
}

@keyframes page-download-center__pulse {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(1.2); opacity: 0.8; }
}

.page-download-center__hero-title {
  font-size: 3.5em;
  margin-bottom: 20px;
  color: #FFD700;
  text-shadow: 0 0 10px rgba(255, 215, 0, 0.5);
  position: relative;
  z-index: 1;
}

.page-download-center__hero-description {
  font-size: 1.3em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #E0E0E0;
  position: relative;
  z-index: 1;
}

.page-download-center__hero-actions {
  display: flex;
  justify-content: center;
  gap: 20px;
  position: relative;
  z-index: 1;
}

.page-download-center__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;
  cursor: pointer;
  border: none;
}

.page-download-center__btn--primary {
  background-color: #FFD700;
  color: #0A2239;
}

.page-download-center__btn--primary:hover {
  background-color: #e6c200;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
}

.page-download-center__btn--secondary {
  background-color: transparent;
  color: #FFD700;
  border: 2px solid #FFD700;
}

.page-download-center__btn--secondary:hover {
  background-color: #FFD700;
  color: #0A2239;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(255, 215, 0, 0.3);
}

.page-download-center__btn--small {
  padding: 10px 20px;
  font-size: 0.9em;
}

.page-download-center__section-title {
  font-size: 2.5em;
  color: #FFD700;
  text-align: center;
  margin-bottom: 50px;
  padding-top: 60px;
  position: relative;
}

.page-download-center__section-title::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background-color: #FFD700;
  margin: 15px auto 0;
  border-radius: 2px;
}

.page-download-center__intro-section, .page-download-center__download-guide, .page-download-center__features-section, .page-download-center__system-requirements, .page-download-center__faq-section, .page-download-center__cta-section, .page-download-center__related-articles {
  padding: 60px 0;
  background-color: #0A2239;
}

.page-download-center__intro-grid, .page-download-center__features-grid, .page-download-center__requirements-grid, .page-download-center__articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

.page-download-center__intro-item, .page-download-center__feature-item, .page-download-center__requirement-item, .page-download-center__article-card {
  background-color: #1a3a5a;
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-download-center__intro-item:hover, .page-download-center__feature-item:hover, .page-download-center__article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-download-center__intro-icon, .page-download-center__feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 5px rgba(255, 215, 0, 0.5));
}

.page-download-center__intro-item-title, .page-download-center__feature-title, .page-download-center__requirement-title, .page-download-center__article-title {
  font-size: 1.5em;
  color: #FFD700;
  margin-bottom: 15px;
}

.page-download-center__intro-item p, .page-download-center__feature-item p, .page-download-center__article-description {
  color: #B0B0B0;
}

.page-download-center__guide-tabs {
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
  flex-wrap: wrap;
  gap: 15px;
}

.page-download-center__tab-btn {
  background-color: #0A2239;
  color: #FFD700;
  border: 2px solid #FFD700;
  padding: 12px 25px;
  border-radius: 25px;
  cursor: pointer;
  font-size: 1.1em;
  transition: all 0.3s ease;
}

.page-download-center__tab-btn:hover {
  background-color: #FFD700;
  color: #0A2239;
}

.page-download-center__tab-btn--active {
  background-color: #FFD700;
  color: #0A2239;
  border-color: #FFD700;
}

.page-download-center__tab-content {
  display: none;
  background-color: #1a3a5a;
  padding: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  color: #E0E0E0;
}

.page-download-center__tab-content--active {
  display: block;
}

.page-download-center__tab-content-title {
  font-size: 2em;
  color: #FFD700;
  margin-bottom: 25px;
  text-align: center;
}

.page-download-center__step-list {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-download-center__step-list li {
  background-color: #0A2239;
  margin-bottom: 15px;
  padding: 20px;
  border-left: 5px solid #FFD700;
  border-radius: 8px;
  font-size: 1.1em;
  color: #E0E0E0;
}

.page-download-center__step-list li strong {
  color: #FFD700;
}

.page-download-center__link {
  color: #FFD700;
  text-decoration: none;
  font-weight: bold;
}

.page-download-center__link:hover {
  text-decoration: underline;
}

.page-download-center__qr-code-wrapper {
  text-align: center;
  margin-top: 30px;
  margin-bottom: 30px;
}

.page-download-center__qr-code {
  width: 180px;
  height: 180px;
  border: 5px solid #FFD700;
  border-radius: 8px;
  padding: 5px;
  background-color: white;
}

.page-download-center__qr-label {
  color: #E0E0E0;
  margin-top: 15px;
  font-size: 1.1em;
}

.page-download-center__requirements-grid ul {
  list-style: none;
  padding: 0;
  text-align: left;
}

.page-download-center__requirements-grid li {
  margin-bottom: 10px;
  color: #B0B0B0;
}

.page-download-center__requirements-grid li strong {
  color: #FFD700;
}

.page-download-center__faq-accordion .page-download-center__faq-item {
  background-color: #1a3a5a;
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-download-center__faq-question {
  background-color: #0A2239;
  color: #FFD700;
  padding: 20px 25px;
  margin: 0;
  cursor: pointer;
  font-size: 1.2em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-download-center__faq-question::after {
  content: '+';
  font-size: 1.5em;
  transition: transform 0.3s ease;
}

.page-download-center__faq-question.active::after {
  content: '-';
  transform: rotate(180deg);
}

.page-download-center__faq-answer {
  padding: 0 25px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
  color: #E0E0E0;
}

.page-download-center__faq-answer p {
  padding-bottom: 20px;
}

.page-download-center__cta-section {
  background-color: #FFD700;
  padding: 80px 0;
  text-align: center;
  color: #0A2239;
}

.page-download-center__cta-title {
  font-size: 3em;
  color: #0A2239;
  margin-bottom: 20px;
}

.page-download-center__cta-description {
  font-size: 1.2em;
  max-width: 900px;
  margin: 0 auto 40px;
  color: #333;
}

.page-download-center__cta-section .page-download-center__btn--primary {
  background-color: #0A2239;
  color: #FFD700;
}

.page-download-center__cta-section .page-download-center__btn--primary:hover {
  background-color: #2a4e70;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-download-center__cta-section .page-download-center__btn--secondary {
  background-color: transparent;
  color: #0A2239;
  border: 2px solid #0A2239;
}

.page-download-center__cta-section .page-download-center__btn--secondary:hover {
  background-color: #0A2239;
  color: #FFD700;
}

.page-download-center__articles-grid .page-download-center__article-card {
  text-align: left;
}

.page-download-center__article-card .page-download-center__article-title a {
  color: #FFD700;
  text-decoration: none;
}

.page-download-center__article-card .page-download-center__article-title a:hover {
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-download-center__hero-title {
    font-size: 2.8em;
  }
  .page-download-center__hero-description {
    font-size: 1.1em;
  }
  .page-download-center__section-title {
    font-size: 2em;
  }
  .page-download-center__cta-title {
    font-size: 2.5em;
  }
}

@media (max-width: 768px) {
  .page-download-center__hero-title {
    font-size: 2.2em;
  }
  .page-download-center__hero-description {
    font-size: 1em;
  }
  .page-download-center__hero-actions {
    flex-direction: column;
    gap: 15px;
  }
  .page-download-center__btn {
    width: 80%;
    margin: 0 auto;
  }
  .page-download-center__intro-grid, .page-download-center__features-grid, .page-download-center__requirements-grid, .page-download-center__articles-grid {
    grid-template-columns: 1fr;
  }
  .page-download-center__tab-btn {
    font-size: 1em;
    padding: 10px 20px;
  }
  .page-download-center__tab-content {
    padding: 30px 20px;
  }
  .page-download-center__step-list li {
    font-size: 1em;
    padding: 15px;
  }
  .page-download-center__cta-title {
    font-size: 2em;
  }
  .page-download-center__cta-description {
    font-size: 1em;
  }
}

@media (max-width: 480px) {
  .page-download-center__hero-title {
    font-size: 1.8em;
  }
  .page-download-center__hero-description {
    font-size: 0.9em;
  }
  .page-download-center__btn {
    font-size: 1em;
    padding: 12px 20px;
  }
  .page-download-center__section-title {
    font-size: 1.8em;
  }
  .page-download-center__cta-title {
    font-size: 1.8em;
  }
}