/* 落地页通用样式 */

/* 落地页 Hero */
.landing-hero {
  padding: 100px 0 60px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
}

.landing-hero h1 {
  font-size: 2.2rem;
  margin-bottom: 16px;
  line-height: 1.3;
}

.landing-hero .subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto 30px;
  line-height: 1.6;
}

/* 内容区域 */
.landing-content {
  padding: 60px 0;
}

.landing-content .content-block {
  max-width: 720px;
  margin: 0 auto 48px;
}

.landing-content h2 {
  font-size: 1.5rem;
  color: #333;
  margin-bottom: 16px;
  padding-left: 12px;
  border-left: 4px solid #667eea;
}

.landing-content h3 {
  font-size: 1.2rem;
  color: #444;
  margin: 24px 0 12px;
}

.landing-content p {
  font-size: 1rem;
  color: #555;
  line-height: 1.8;
  margin-bottom: 16px;
}

.landing-content ul, .landing-content ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.landing-content li {
  font-size: 1rem;
  color: #555;
  line-height: 1.8;
  margin-bottom: 8px;
}

/* 对比图区域 */
.comparison-section {
  padding: 60px 0;
  background: #f8f9fa;
}

.comparison-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.comparison-card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 12px rgba(0,0,0,0.08);
}

.comparison-card .label {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: center;
}

.comparison-card .label.before {
  background: #fee;
  color: #c33;
}

.comparison-card .label.after {
  background: #efe;
  color: #3a3;
}

.comparison-card .preview-area {
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fafafa;
  color: #999;
  font-size: 0.9rem;
}

/* 使用步骤 */
.steps-section {
  padding: 60px 0;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.step-card {
  text-align: center;
  padding: 24px;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, #667eea, #764ba2);
  color: white;
  font-size: 1.3rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.step-card h3 {
  font-size: 1.1rem;
  color: #333;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.9rem;
  color: #666;
  line-height: 1.6;
}

/* CTA 区域 */
.landing-cta {
  padding: 60px 0;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  text-align: center;
}

.landing-cta h2 {
  font-size: 1.8rem;
  margin-bottom: 16px;
  border: none;
  padding: 0;
  color: white;
}

.landing-cta p {
  font-size: 1rem;
  opacity: 0.9;
  margin-bottom: 24px;
}

.landing-cta .cta-qr {
  width: 180px;
  height: 180px;
  border-radius: 12px;
  margin: 0 auto 16px;
  background: white;
  padding: 8px;
}

.landing-cta .cta-qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.landing-cta .cta-hint {
  font-size: 0.9rem;
  opacity: 0.8;
}

/* 相关工具推荐 */
.related-tools {
  padding: 48px 0;
  background: #f8f9fa;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}

.related-card {
  background: white;
  border-radius: 10px;
  padding: 20px;
  text-align: center;
  text-decoration: none;
  color: inherit;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  transition: transform 0.2s, box-shadow 0.2s;
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

.related-card img {
  width: 40px;
  height: 40px;
  margin-bottom: 8px;
}

.related-card h4 {
  font-size: 0.95rem;
  color: #333;
  margin: 0;
}

/* 更新日志 */
.changelog-section {
  padding: 60px 0;
}

.changelog-list {
  max-width: 720px;
  margin: 0 auto;
}

.changelog-entry {
  margin-bottom: 40px;
  padding-left: 24px;
  border-left: 3px solid #667eea;
}

.changelog-entry .version {
  font-size: 1.2rem;
  font-weight: 700;
  color: #333;
  margin-bottom: 4px;
}

.changelog-entry .date {
  font-size: 0.85rem;
  color: #999;
  margin-bottom: 12px;
}

.changelog-entry ul {
  padding-left: 20px;
}

.changelog-entry li {
  font-size: 0.95rem;
  color: #555;
  line-height: 1.8;
  margin-bottom: 4px;
}

/* 响应式 */
@media (max-width: 768px) {
  .landing-hero h1 {
    font-size: 1.6rem;
  }
  .landing-hero .subtitle {
    font-size: 1rem;
  }
  .landing-content h2 {
    font-size: 1.3rem;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
}