/* 博客专属样式。设计 token 与页头/页脚外壳来自 home.css（博客页同时引入
   home.css、account.css），这里只写博客自己的规则，避免整段复制外壳样式。 */
.blog-main {
  width: min(1180px, calc(100% - 112px));
  margin: 0 auto;
  padding: 56px 0 80px;
}
.blog-index-head {
  text-align: center;
  margin-bottom: 40px;
}
.blog-index-head h1 {
  font-size: 46px;
  line-height: 1.2;
  letter-spacing: -1px;
}
.blog-index-head p {
  margin-top: 12px;
  color: var(--muted);
  font-size: 16px;
}
.blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.blog-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition:
    border-color 0.18s,
    box-shadow 0.18s;
}
.blog-card:hover {
  border-color: var(--green);
  box-shadow: 0 6px 20px rgba(8, 8, 8, 0.06);
}
.blog-card-cover {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: var(--green-soft);
}
.blog-card-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  flex: 1;
}
.blog-card-date {
  color: var(--muted);
  font-size: 13px;
}
.blog-card-title {
  font-size: 20px;
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card-summary {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.blog-card-more {
  margin-top: auto;
  padding-top: 6px;
  color: var(--green-ink);
  font-size: 14px;
  font-weight: 700;
}
.blog-empty {
  grid-column: 1 / -1;
  color: var(--muted);
  text-align: center;
}
.blog-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 28px;
}
.blog-breadcrumb a:hover {
  color: var(--ink);
}
.blog-article {
  max-width: 760px;
  margin: 0 auto;
}
.blog-article-head {
  margin-bottom: 28px;
}
.blog-article-date {
  color: var(--muted);
  font-size: 13px;
}
.blog-article-head h1 {
  margin-top: 10px;
  font-size: 40px;
  line-height: 1.25;
  letter-spacing: -0.5px;
}
.blog-lead {
  margin-top: 14px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}
.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}
.blog-tags li {
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--green-soft);
  color: var(--green-ink);
  font-size: 12px;
  font-weight: 650;
}
.blog-body {
  font-size: 16px;
  line-height: 1.85;
  color: #171e2c;
}
.blog-body > * + * {
  margin-top: 18px;
}
.blog-body h2 {
  margin-top: 40px;
  font-size: 24px;
  line-height: 1.4;
}
.blog-body h3 {
  margin-top: 28px;
  font-size: 19px;
}
.blog-body ul,
.blog-body ol {
  padding-left: 22px;
}
.blog-body li + li {
  margin-top: 8px;
}
.blog-body a {
  color: var(--green-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.blog-body code {
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--green-soft);
  font-size: 0.92em;
}
.blog-body blockquote {
  margin: 0;
  padding: 8px 0 8px 16px;
  border-left: 3px solid var(--line);
  color: var(--muted);
}
.callout {
  border-radius: var(--radius);
  padding: 16px 20px;
}
.callout-title {
  font-size: 13px;
  font-weight: 750;
  margin-bottom: 6px;
}
.callout-tip {
  background: var(--green-soft);
  border: 1px solid var(--green);
}
.callout-tip .callout-title {
  color: var(--green-ink);
}
.callout-warn {
  background: #fff7ed;
  border: 1px solid #e8a33d;
}
.callout-warn .callout-title {
  color: #9a5b00;
}
.blog-figure {
  margin: 24px 0;
}
.blog-figure img {
  display: block;
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.blog-figure figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}
.blog-back {
  display: inline-block;
  margin-top: 48px;
  color: var(--green-ink);
  font-size: 15px;
  font-weight: 700;
}
@media (max-width: 960px) {
  .blog-main {
    width: calc(100% - 48px);
    padding: 40px 0 64px;
  }
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .blog-article-head h1 {
    font-size: 32px;
  }
}
@media (max-width: 640px) {
  .blog-main {
    width: calc(100% - 40px);
  }
  .blog-grid {
    grid-template-columns: 1fr;
  }
  .blog-index-head h1 {
    font-size: 34px;
  }
}