/* ============================================
   响应式 — 平板
   ============================================ */
@media (max-width: 900px) {
  .hero-section {
    grid-template-columns: 1fr;
  }

  .blog-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.2rem;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 1.2rem;
  }
}

/* ============================================
   响应式 — 手机
   ============================================ */
@media (max-width: 600px) {
  body {
    padding: 1.5rem 1rem;
  }

  .logo-text h1 {
    font-size: 1.6rem;
  }

  .hero-content h2 {
    font-size: 1.5rem;
  }

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

  .newsletter-section {
    padding: 2rem 1.5rem;
  }

  .blog-footer {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .footer-links a {
    margin: 0 1rem;
  }

  .subscribe-form button {
    width: 100%;
    justify-content: center;
  }
}

/* ============================================
   响应式 — 文章详情页（第 3 期）
   ============================================ */
@media (max-width: 900px) {
  .post-article {
    padding: 2.2rem 2rem;
  }

  .detail-title {
    font-size: 1.9rem;
  }
}

@media (max-width: 600px) {
  .post-article {
    padding: 1.8rem 1.4rem;
  }

  .detail-title {
    font-size: 1.6rem;
  }

  .detail-thumb {
    height: 160px;
    font-size: 2.4rem;
  }

  .detail-body p {
    font-size: 1rem;
    line-height: 1.85;
  }

  .post-nav {
    grid-template-columns: 1fr;
  }

  /* 文章列表页 */
  .filter-bar {
    gap: 0.9rem;
  }

  .search-field {
    padding: 0.75rem 1.1rem;
  }

  .archive-section .section-title {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.3rem;
  }

  /* 关于页 */
  .about-card {
    padding: 1.8rem 1.4rem;
  }

  .about-stats {
    gap: 0.6rem;
  }

  .stat-num {
    font-size: 1.5rem;
  }

  /* 社交胶囊在小屏上收紧一点 */
  .social-links {
    gap: 0.4rem;
  }

  .social-links a {
    padding: 0.28rem 0.65rem;
    font-size: 0.78rem;
  }
}