:root {
  --bg: #ffffff;
  --bg-soft: #f7f8fc;
  --card: #ffffff;
  --text: #1a1d2e;
  --text-secondary: #5a6178;
  --muted: #8891a8;
  --line: #e4e7f0;
  --primary: #5b6df5;
  --primary-strong: #4354e6;
  --primary-soft: rgba(91, 109, 245, 0.08);
  --accent: #8b5cf6;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);
  --radius: 16px;
  --radius-sm: 10px;
  --content-width: 720px;
  --page-width: 1120px;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

.nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}
.nav {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.05rem;
}
.brand-logo { width: 28px; height: 28px; }
.nav-right { display: flex; align-items: center; gap: 16px; }
.nav-links { display: flex; gap: 18px; font-size: 0.92rem; font-weight: 600; color: var(--text-secondary); }
.nav-links a:hover { color: var(--primary); }
.nav-auth { display: flex; align-items: center; gap: 6px; }
.nav-auth-btn {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--text-secondary);
}
.nav-auth-btn.primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}
.nav-account-btn { display: none; align-items: center; gap: 8px; font-weight: 700; font-size: 0.86rem; }
.nav-account-btn.is-visible { display: inline-flex; }
.nav-account-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); }

.blog-hero {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 56px 24px 24px;
}
.blog-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--primary-soft);
  color: var(--primary-strong);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.blog-hero h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
}
.blog-hero p {
  margin: 0;
  max-width: 640px;
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
}

.blog-grid {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 16px 24px 80px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.blog-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: flex;
  flex-direction: column;
}
.blog-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.blog-card-body { padding: 22px; display: flex; flex-direction: column; flex: 1; gap: 10px; }
.blog-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}
.blog-card h2 {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.35;
  letter-spacing: -0.02em;
}
.blog-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.55;
  flex: 1;
}
.blog-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }
.blog-tag {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--bg-soft);
  color: var(--text-secondary);
}
.blog-read-more {
  margin-top: 8px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--primary);
}

.article-wrap {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 48px 24px 72px;
}
.article-header { margin-bottom: 32px; }
.article-header h1 {
  margin: 0 0 14px;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 600;
}
.article-content {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--text-secondary);
}
.article-content h2 {
  margin: 36px 0 12px;
  color: var(--text);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}
.article-content h3 {
  margin: 28px 0 10px;
  color: var(--text);
  font-size: 1.1rem;
}
.article-content p { margin: 0 0 16px; }
.article-content ul, .article-content ol {
  margin: 0 0 18px;
  padding-left: 22px;
}
.article-content li { margin-bottom: 8px; }
.article-content a {
  color: var(--primary-strong);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.article-content blockquote {
  margin: 24px 0;
  padding: 16px 18px;
  border-left: 3px solid var(--primary);
  background: var(--primary-soft);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
}
.article-content .compare-table {
  width: 100%;
  border-collapse: collapse;
  margin: 20px 0 28px;
  font-size: 0.9rem;
}
.article-content .compare-table th,
.article-content .compare-table td {
  border: 1px solid var(--line);
  padding: 10px 12px;
  text-align: left;
}
.article-content .compare-table th {
  background: var(--bg-soft);
  color: var(--text);
}
.article-cta {
  margin-top: 40px;
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(135deg, rgba(91,109,245,0.06), rgba(139,92,246,0.06));
  text-align: center;
}
.article-cta h3 { margin: 0 0 8px; color: var(--text); }
.article-cta p { margin: 0 0 16px; color: var(--text-secondary); }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-weight: 800;
  font-size: 0.92rem;
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--card);
  color: var(--primary-strong);
  font-weight: 800;
  font-size: 0.92rem;
  margin-left: 10px;
}
.article-cta-free .btn-primary,
.article-cta-free .btn-secondary { margin: 4px; }
.article-cta-free .btn-secondary { margin-left: 4px; }
.free-apps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin: 24px 0 32px;
}
.free-app-card {
  padding: 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--bg-soft);
}
.free-app-card-head {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 10px;
}
.free-app-emoji { font-size: 1.5rem; line-height: 1; }
.free-app-card h3 { margin: 0 0 4px; font-size: 1rem; }
.free-app-card h3 a:hover { color: var(--primary); }
.free-app-tagline { margin: 0; font-size: 0.85rem; color: var(--text-secondary); font-weight: 600; }
.free-app-desc { margin: 0 0 10px; font-size: 0.88rem; color: var(--text-secondary); line-height: 1.5; }
.free-app-meta { margin: 0; font-size: 0.8rem; color: var(--muted); }
.free-app-meta a { color: var(--primary-strong); font-weight: 700; }
.blog-promo-free {
  max-width: var(--page-width);
  margin: 0 auto 32px;
  padding: 0 24px;
}
.blog-promo-free-inner {
  padding: 28px 32px;
  border-radius: var(--radius);
  border: 1px solid rgba(91, 109, 245, 0.2);
  background: linear-gradient(135deg, rgba(91,109,245,0.08), rgba(139,92,246,0.06));
}
.blog-promo-eyebrow {
  margin: 0 0 8px;
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--primary-strong);
}
.blog-promo-free h2 {
  margin: 0 0 8px;
  font-size: 1.5rem;
  letter-spacing: -0.02em;
}
.blog-promo-free p {
  margin: 0 0 16px;
  color: var(--text-secondary);
  max-width: 52ch;
}
.blog-promo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.blog-archive-static {
  max-width: var(--page-width);
  margin: 0 auto 48px;
  padding: 0 24px 24px;
  border-top: 1px solid var(--line);
  padding-top: 32px;
}
.blog-archive-static h2 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
}
.blog-archive-note {
  margin: 0 0 16px;
  font-size: 0.88rem;
  color: var(--muted);
}
.blog-archive-list {
  margin: 0;
  padding: 0;
  list-style: none;
  columns: 2;
  column-gap: 32px;
}
@media (min-width: 900px) {
  .blog-archive-list { columns: 3; }
}
.blog-archive-list li {
  margin: 0 0 8px;
  break-inside: avoid;
}
.blog-archive-list a {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-secondary);
}
.blog-archive-list a:hover {
  color: var(--primary-strong);
}
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--primary);
}

.footer {
  border-top: 1px solid var(--line);
  padding: 28px 24px 40px;
  text-align: center;
  color: var(--muted);
  font-size: 0.88rem;
}
.footer-links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}
    .footer-links a:hover { color: var(--primary); }

    .blog-pagination {
      max-width: var(--page-width);
      margin: -48px auto 64px;
      padding: 0 24px;
      display: flex;
      justify-content: center;
    }
    .blog-pagination-inner {
      display: flex;
      align-items: center;
      gap: 16px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-secondary);
    }
    .blog-page-btn {
      padding: 8px 14px;
      border-radius: 999px;
      border: 1px solid var(--line);
      background: var(--card);
      color: var(--primary-strong);
      font-weight: 700;
    }
    .blog-page-btn:hover {
      background: var(--primary-soft);
    }

    @media (max-width: 680px) {
  .nav { flex-wrap: wrap; height: auto; min-height: 56px; padding-top: 8px; padding-bottom: 8px; }
  .nav-right { width: 100%; justify-content: space-between; }
  .blog-grid { grid-template-columns: 1fr; }
}