/* ============================================
   CHINESE SEO PAGE — zh-cn.html Specific Styles
   ============================================ */

/* --- SEO Hero --- */
.seo-hero {
  width: 100%;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: linear-gradient(180deg, #f8fafd 0%, #e8f0fe 50%, #ffffff 100%);
  padding: 100px 16px 60px;
}

.seo-hero-content {
  max-width: 720px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.seo-hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .seo-hero-title {
    font-size: 52px;
  }
}

.seo-hero-subtitle {
  font-size: 17px;
  color: var(--color-secondary-text);
  line-height: 1.7;
  margin-top: 16px;
  max-width: 640px;
}

.seo-hero .btn {
  margin-top: 32px;
}

.seo-hero-note {
  font-size: 13px;
  color: var(--color-tertiary-text);
  margin-top: 10px;
}

/* --- Keyword Tags --- */
.keyword-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-top: 32px;
}

/* --- Why Choose Section --- */
.why-choose-section {
  background: var(--color-bg);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .why-choose-section {
    padding: 100px 0;
  }
}

.why-choose-content {
  max-width: 800px;
  margin: 0 auto;
}

.why-choose-content .intro-text {
  color: var(--color-secondary-text);
  line-height: 1.8;
  margin-bottom: 40px;
}

.advantage-block {
  margin-bottom: 40px;
}

.advantage-block:last-child {
  margin-bottom: 0;
}

.advantage-block h3 {
  margin-bottom: 12px;
}

.advantage-block p {
  color: var(--color-secondary-text);
  line-height: 1.8;
}

/* --- Feature Highlights Section --- */
.feature-highlights-section {
  background: var(--color-surface);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .feature-highlights-section {
    padding: 100px 0;
  }
}

.highlight-card {
  background: #ffffff;
  border-radius: 16px;
  padding: 32px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  text-align: center;
  transition: transform var(--transition-normal),
              box-shadow var(--transition-normal);
}

.highlight-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.highlight-card .feature-icon {
  margin: 0 auto 20px;
  background: var(--color-light-primary);
}

.highlight-card .feature-icon svg {
  width: 56px;
  height: 56px;
}

.highlight-card h3 {
  margin-bottom: 10px;
}

.highlight-card p {
  color: var(--color-secondary-text);
  line-height: 1.65;
}

/* --- Comparison Section --- */
.comparison-seo-section {
  background: var(--color-bg);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .comparison-seo-section {
    padding: 100px 0;
  }
}

/* --- Tips Section --- */
.tips-section {
  background: var(--color-surface);
  padding: 80px 0;
}

@media (min-width: 768px) {
  .tips-section {
    padding: 100px 0;
  }
}

.tips-container {
  max-width: 800px;
  margin: 0 auto;
}

.tip-item {
  display: flex;
  gap: 20px;
  margin-bottom: 40px;
}

.tip-item:last-child {
  margin-bottom: 0;
}

.tip-number {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1;
  flex-shrink: 0;
  min-width: 48px;
}

.tip-content h3 {
  margin-bottom: 8px;
}

.tip-content p {
  color: var(--color-secondary-text);
  line-height: 1.7;
}

/* --- Changelog Summary Section --- */
.changelog-summary-section {
  background: var(--color-bg);
  padding: 60px 0;
}

@media (min-width: 768px) {
  .changelog-summary-section {
    padding: 80px 0;
  }
}

.changelog-summary-card {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.changelog-summary-card .version-badge {
  margin-bottom: 12px;
}

.changelog-summary-card h3 {
  margin-top: 12px;
}

.changelog-summary-card .version-date {
  font-size: 14px;
  color: var(--color-tertiary-text);
  margin-top: 4px;
}

.changelog-summary-card .version-desc {
  color: var(--color-secondary-text);
  line-height: 1.8;
  margin-top: 16px;
}

.changelog-summary-card .btn {
  margin-top: 24px;
}

/* --- CTA Section --- */
.cta-section-seo {
  background: var(--color-primary);
  padding: 80px 24px;
  text-align: center;
}

.cta-section-seo .container {
  max-width: 600px;
}

.cta-section-seo h2 {
  font-size: 32px;
  font-weight: 600;
  color: #ffffff;
}

.cta-section-seo p {
  font-size: 16px;
  color: #e8eaed;
  line-height: 1.65;
  margin-top: 16px;
}

.cta-section-seo .btn {
  margin-top: 32px;
}

.trust-line {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
  font-size: 14px;
  color: #e8eaed;
}

.trust-line svg {
  width: 14px;
  height: 14px;
}