:root {
  --blog-ink: #111111;
  --blog-muted: #555555;
  --blog-accent: #2868a7;
  --blog-accent-hover: #1f527d;
  --blog-bg: #ffffff;
  --blog-surface: #ffffff;
  --blog-line: #dcdcdc;
  --blog-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
}

body {
  background: var(--blog-bg);
  color: var(--blog-ink);
  font-family: Roboto, sans-serif;
  margin: 0;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--blog-line);
  background: var(--blog-surface);
  border-radius: 10px;
  box-shadow: var(--blog-shadow);
  max-width: 1200px;
  width: 100%;
  margin: 16px auto 0;
  position: sticky;
  top: 0;
  z-index: 1000;
}

.site-logo {
  font-weight: 700;
  text-decoration: none;
  color: var(--blog-ink);
  font-size: 1.1rem;
}

.site-nav {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.site-nav a {
  text-decoration: none;
  color: var(--blog-muted);
  font-size: 0.95rem;
  padding: 6px 10px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.2s ease, border 0.2s ease;
}

.site-nav a:hover {
  background: #f2f2f2;
  border-color: var(--blog-line);
}

.site-nav a.active {
  color: var(--blog-accent);
  font-weight: 600;
}

.blog-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 48px;
}

.blog-hero {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 32px;
}

.blog-hero h1 {
  font-size: clamp(2rem, 3vw, 2.8rem);
}

.blog-hero p {
  color: var(--blog-muted);
  font-size: 1.05rem;
}

.blog-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.blog-card {
  background: var(--blog-surface);
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--blog-line);
  display: flex;
  flex-direction: column;
  min-height: 320px;
  box-shadow: var(--blog-shadow);
}

.blog-card__media {
  height: 160px;
  background-size: cover;
  background-position: center;
}

.blog-card__body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.blog-card__body h2 {
  margin: 0;
  font-size: 1.35rem;
}

.blog-card__body h2 a {
  text-decoration: none;
  color: var(--blog-ink);
}

.blog-card__meta {
  font-size: 0.8rem;
  color: var(--blog-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-card__link {
  color: var(--blog-accent);
  text-decoration: none;
  font-weight: 600;
}

.blog-pagination {
  margin-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.blog-pagination a {
  text-decoration: none;
  color: var(--blog-accent);
  font-weight: 600;
}

.blog-article {
  background: var(--blog-surface);
  border-radius: 18px;
  padding: 32px;
  border: 1px solid var(--blog-line);
  box-shadow: var(--blog-shadow);
}

.blog-article h1 {
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 12px;
}

.blog-article__meta {
  color: var(--blog-muted);
  font-size: 0.9rem;
  margin-bottom: 20px;
}

.blog-share {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin: 12px 0 20px;
}

.blog-share__label {
  font-weight: 600;
  color: var(--blog-muted);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--blog-line);
  background: #ffffff;
  color: var(--blog-ink);
  text-decoration: none;
  font-size: 0.85rem;
  cursor: pointer;
}

.share-btn:hover {
  border-color: var(--blog-accent);
  color: var(--blog-accent);
}

.blog-article__hero {
  width: 100%;
  height: auto;
  border-radius: 14px;
  margin-bottom: 24px;
}

.blog-article__content {
  line-height: 1.7;
  font-size: 1.05rem;
}

.blog-article__content img {
  max-width: 100%;
  height: auto;
}

.blog-article__content pre {
  background: #111111;
  color: #f5f5f5;
  padding: 16px;
  border-radius: 10px;
  overflow-x: auto;
}

.blog-article__content code {
  font-family: "Courier New", monospace;
}

.blog-article__content blockquote {
  border-left: 4px solid var(--blog-accent);
  padding-left: 16px;
  color: var(--blog-muted);
}

.blog-article__content ul,
.blog-article__content ol {
  padding-left: 22px;
}

.back-link {
  display: inline-block;
  margin-bottom: 16px;
  text-decoration: none;
  color: var(--blog-accent);
}

.site-footer {
  text-align: center;
  padding: 24px;
  color: var(--blog-muted);
}

.blog-article__content table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--blog-line);
  margin: 16px 0;
  font-size: 0.98rem;
}

.blog-article__content th,
.blog-article__content td {
  border: 1px solid var(--blog-line);
  padding: 10px 12px;
  text-align: left;
}

.blog-article__content th {
  background: #f3f4f6;
}

.blog-article__content .gallery,
.blog-article__content .slideshow {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
  margin: 16px 0;
}

.blog-article__content .media-text {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
  gap: 18px;
  align-items: center;
  margin: 20px 0;
}

.blog-article__content .media-text--right {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
}

.blog-article__content .media-text--right .media-text__media {
  order: 2;
}

.blog-article__content .columns {
  display: grid;
  gap: 16px;
  margin: 16px 0;
}

.blog-article__content .columns-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.blog-article__content .columns-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.blog-article__content .embed iframe {
  width: 100%;
  aspect-ratio: 16 / 9;
  border: none;
  border-radius: 10px;
}

.preview-banner {
  background: #fff7d6;
  border: 1px solid #f0d98c;
  color: #7a5b00;
  padding: 10px 14px;
  border-radius: 10px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

@media (max-width: 768px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 14px 16px;
    margin: 12px 12px 0;
  }

  .blog-container {
    padding: 24px 16px 36px;
  }

  .blog-article {
    padding: 22px;
  }

  .blog-article h1 {
    font-size: 1.9rem;
  }

  .blog-card__media {
    height: 140px;
  }

  .blog-article__content .media-text,
  .blog-article__content .media-text--right {
    grid-template-columns: 1fr;
  }

  .blog-article__content .columns-2,
  .blog-article__content .columns-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .site-header {
    margin: 10px 10px 0;
  }

  .site-nav {
    width: 100%;
  }

  .site-nav a {
    font-size: 0.9rem;
  }

  .blog-card {
    min-height: 0;
  }

  .blog-pagination {
    flex-direction: column;
    align-items: flex-start;
  }
}