/* download.css - 下载页面专用样式 */

/* 下载页面英雄区域 */
.download-hero {
  padding-top: 140px;
  background: linear-gradient(135deg, #e8f0fe 0%, #f1f8ff 100%);
}

.download-hero .hero-content {
  text-align: center;
  padding-right: 0;
}

.download-hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.download-btns {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 30px;
}

.download-btns .btn {
  padding: 15px 25px;
  font-size: 1.1rem;
}

.download-btns .btn i {
  margin-right: 8px;
  font-size: 1.2rem;
}

.download-visual {
  margin-top: 50px;
}

.device-icons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 30px;
}

.device-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  border-radius: var(--border-radius);
  background-color: white;
  box-shadow: var(--shadow);
  width: 120px;
  transition: var(--transition);
  animation: float 6s infinite ease-in-out;
}

.device-icon:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.device-icon.windows {
  animation-delay: 0s;
}

.device-icon.mac {
  animation-delay: 0.5s;
}

.device-icon.linux {
  animation-delay: 1s;
}

.device-icon.android {
  animation-delay: 1.5s;
}

.device-icon.ios {
  animation-delay: 2s;
}

.device-icon i {
  font-size: 3rem;
  margin-bottom: 10px;
}

.device-icon.windows i {
  color: #0078d6;
}

.device-icon.mac i {
  color: #000;
}

.device-icon.linux i {
  color: #fcc624;
}

.device-icon.android i {
  color: #3ddc84;
}

.device-icon.ios i {
  color: #007aff;
}

/* 下载选项区域 */
.download-options {
  max-width: 900px;
  margin: 0 auto;
}

.download-option {
  background-color: white;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  margin-bottom: 40px;
  overflow: hidden;
  transition: var(--transition);
}

.download-option:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.option-header {
  display: flex;
  align-items: center;
  padding: 30px;
  background-color: #f8f9fa;
  border-bottom: 1px solid var(--light-gray);
}

.option-icon {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 20px;
  font-size: 2rem;
  color: white;
}

.download-option:nth-child(1) .option-icon {
  background-color: #0078d6; /* Windows 蓝 */
}

.download-option:nth-child(2) .option-icon {
  background-color: #000; /* macOS 黑 */
}

.download-option:nth-child(3) .option-icon {
  background-color: #fcc624; /* Linux 黄 */
}

.option-info h3 {
  font-size: 1.8rem;
  margin-bottom: 5px;
}

.option-subtitle {
  color: var(--gray-color);
  font-size: 1rem;
}

.option-content {
  padding: 30px;
}

.option-description {
  font-size: 1.1rem;
  margin-bottom: 25px;
  color: var(--gray-color);
}

.system-requirements {
  margin-bottom: 30px;
  padding: 20px;
  background-color: #f8f9fa;
  border-radius: var(--border-radius);
}

.system-requirements h4 {
  font-size: 1.3rem;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.system-requirements ul {
  list-style: none;
}

.system-requirements li {
  margin-bottom: 10px;
  display: flex;
  align-items: center;
}

.system-requirements li i {
  color: var(--secondary-color);
  margin-right: 10px;
}

.download-links {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
  margin-bottom: 30px;
}

.btn-secondary {
  background-color: #f1f3f4;
  color: var(--dark-color);
}

.btn-secondary:hover {
  background-color: #e8eaed;
  color: var(--dark-color);
}

.install-guide {
  border-top: 1px solid var(--light-gray);
  padding-top: 25px;
}

.install-guide h4 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.install-guide ol {
  padding-left: 20px;
}

.install-guide li {
  margin-bottom: 10px;
  padding-left: 10px;
}

.install-guide code {
  background-color: #f1f3f4;
  padding: 2px 6px;
  border-radius: 4px;
  font-family: "Courier New", monospace;
  font-size: 0.9rem;
}

/* 移动设备下载区域 */
.mobile-download-section {
  background-color: #f8f9fa;
}

.mobile-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  max-width: 900px;
  margin: 0 auto;
}

.mobile-option {
  background-color: white;
  border-radius: var(--border-radius);
  padding: 30px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.mobile-option:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.mobile-header {
  text-align: center;
  margin-bottom: 25px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--light-gray);
}

.mobile-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 15px;
  font-size: 2.5rem;
  color: white;
}

.mobile-option:nth-child(1) .mobile-icon {
  background-color: #3ddc84; /* Android 绿 */
}

.mobile-option:nth-child(2) .mobile-icon {
  background-color: #007aff; /* iOS 蓝 */
}

.mobile-header h3 {
  font-size: 1.8rem;
  margin-bottom: 5px;
}

.mobile-subtitle {
  color: var(--gray-color);
  font-size: 1rem;
}

.mobile-content p {
  margin-bottom: 25px;
  color: var(--gray-color);
}

.qr-code {
  display: flex;
  justify-content: center;
  margin-bottom: 25px;
}

.qr-placeholder {
  width: 150px;
  height: 150px;
  border: 2px dashed var(--light-gray);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--gray-color);
}

.qr-placeholder i {
  font-size: 3rem;
  margin-bottom: 10px;
  opacity: 0.7;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 25px;
}

.install-steps {
  padding-top: 20px;
  border-top: 1px solid var(--light-gray);
}

.install-steps h4 {
  font-size: 1.3rem;
  margin-bottom: 15px;
}

.install-steps ol {
  padding-left: 20px;
}

.install-steps li {
  margin-bottom: 8px;
  padding-left: 5px;
}

/* 技术指南区域 */
.guide-section {
  background-color: white;
}

.guide-content h3 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: var(--dark-color);
}

.guide-content > p {
  font-size: 1.1rem;
  margin-bottom: 25px;
  color: var(--gray-color);
}

.guide-content h4 {
  font-size: 1.5rem;
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--dark-color);
}

.important-note {
  display: flex;
  align-items: flex-start;
  background-color: #fff8e1;
  border-left: 4px solid var(--warning-color);
  padding: 20px;
  border-radius: 4px;
  margin-bottom: 30px;
}

.important-note i {
  color: var(--warning-color);
  font-size: 1.5rem;
  margin-right: 15px;
  flex-shrink: 0;
}

.guide-steps {
  margin-top: 40px;
}

.guide-step {
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--light-gray);
}

.guide-step:last-child {
  border-bottom: none;
}

.guide-step h4 {
  display: flex;
  align-items: center;
  margin-bottom: 20px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: var(--primary-color);
  color: white;
  border-radius: 50%;
  font-size: 1.2rem;
  font-weight: 700;
  margin-right: 15px;
}

.guide-step ol {
  padding-left: 20px;
  margin-bottom: 20px;
}

.guide-step li {
  margin-bottom: 12px;
  padding-left: 5px;
}

.alternative-method {
  background-color: #f8f9fa;
  padding: 20px;
  border-radius: var(--border-radius);
  margin-top: 20px;
}

.alternative-method h5 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--dark-color);
}

.alternative-method ul {
  padding-left: 20px;
  margin-bottom: 15px;
}

.alternative-method li {
  margin-bottom: 8px;
}

.warning-note {
  display: flex;
  align-items: flex-start;
  background-color: #ffebee;
  border-left: 4px solid var(--accent-color);
  padding: 15px;
  border-radius: 4px;
}

.warning-note i {
  color: var(--accent-color);
  font-size: 1.2rem;
  margin-right: 10px;
  flex-shrink: 0;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.setting-item {
  text-align: center;
  padding: 20px;
  border-radius: var(--border-radius);
  background-color: #f8f9fa;
  transition: var(--transition);
}

.setting-item:hover {
  background-color: #e8f0fe;
  transform: translateY(-5px);
}

.setting-item i {
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.setting-item h5 {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.setting-item p {
  font-size: 0.9rem;
  color: var(--gray-color);
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  padding: 15px;
  border-radius: var(--border-radius);
  background-color: #f8f9fa;
  transition: var(--transition);
}

.feature-item:hover {
  background-color: #e8f0fe;
}

.feature-item i {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-right: 15px;
  flex-shrink: 0;
  margin-top: 3px;
}

.feature-item h5 {
  font-size: 1.1rem;
  margin-bottom: 5px;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--gray-color);
}

/* 常见问题预览区域 */
.faq-preview-section {
  background-color: #f8f9fa;
}

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

.faq-item {
  background-color: white;
  border-radius: var(--border-radius);
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  transition: var(--transition);
}

.faq-question:hover {
  background-color: #f8f9fa;
}

.faq-question h4 {
  font-size: 1.2rem;
  margin-bottom: 0;
  color: var(--dark-color);
}

.faq-question i {
  color: var(--gray-color);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 25px;
}

.faq-item.active .faq-answer {
  max-height: 500px;
  padding: 0 25px 25px;
}

.faq-answer p {
  color: var(--gray-color);
  line-height: 1.6;
}

.view-more-faq {
  text-align: center;
}

/* 立即下载CTA区域 */
.download-cta-section {
  background: linear-gradient(
    135deg,
    var(--primary-color) 0%,
    var(--primary-dark) 100%
  );
  color: white;
}

.download-cta {
  text-align: center;
}

.download-cta h2 {
  font-size: 2.8rem;
  color: white;
  margin-bottom: 20px;
}

.download-cta p {
  font-size: 1.3rem;
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  opacity: 0.9;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
  .download-hero h1 {
    font-size: 2.5rem;
  }

  .download-btns {
    flex-direction: column;
    align-items: center;
  }

  .download-btns .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  .device-icons {
    gap: 15px;
  }

  .device-icon {
    width: 100px;
    padding: 15px;
  }

  .mobile-options {
    grid-template-columns: 1fr;
  }

  .download-links {
    flex-direction: column;
  }

  .download-links .btn {
    width: 100%;
    text-align: center;
  }

  .cta-buttons {
    flex-direction: column;
    align-items: center;
  }

  .cta-buttons .btn {
    width: 100%;
    max-width: 300px;
    text-align: center;
  }

  .settings-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .download-hero h1 {
    font-size: 2rem;
  }

  .option-header {
    flex-direction: column;
    text-align: center;
  }

  .option-icon {
    margin-right: 0;
    margin-bottom: 15px;
  }

  .settings-grid {
    grid-template-columns: 1fr;
  }

  .download-cta h2 {
    font-size: 2rem;
  }
}