.blog-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

/* 铁律:文章页版心也必须保留左右内边距,否则移动端正文直接贴屏幕边 */
main.blog-post,
main.post-main {
  max-width: 1120px;
  margin: 0 auto;
  padding-inline: var(--gutter);
}
main.blog-post > *,
main.post-main > * {
  min-width: 0;
}

.blog-hero {
  padding: 2.4rem 0 1.6rem;
  border-bottom: 1px solid var(--border);
}

.blog-hero .sec-code {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.18rem 0.5rem;
  margin-bottom: 0.8rem;
}

.blog-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--text);
  margin: 0 0 0.6rem;
  letter-spacing: 0.01em;
}

.blog-hero p {
  color: var(--muted);
  max-width: 640px;
  line-height: 1.7;
  margin: 0;
}

.blog-filter {
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--border);
}

.tag-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.tag-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background-color 0.15s;
}

.tag-btn:hover {
  color: var(--text);
  border-color: var(--edge);
}

.tag-btn.is-active {
  color: var(--bg);
  background: var(--accent);
  border-color: var(--accent);
}

.blog-list-sec {
  padding: 2.2rem 0 3.2rem;
}

.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.1rem;
}

.post-card {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: border-color 0.15s;
}

.post-card:hover {
  border-color: var(--edge);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
}

.post-meta .tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border);
  padding: 0.16rem 0.5rem;
  color: var(--text-soft);
}

.post-card h3 {
  font-family: var(--font-display);
  font-size: 1.08rem;
  margin: 0;
  line-height: 1.4;
}

.post-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.post-card h3 a:hover {
  color: var(--accent);
}

.post-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
  flex-grow: 1;
}

.post-more {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.post-more:hover {
  color: var(--text);
}

.post-empty {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 2rem 0;
}

/* ---- 文章页面包屑 ---- */
.crumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 1.4rem;
  padding-top: 0.4rem;
}

.crumb a {
  color: var(--muted);
  text-decoration: none;
}

.crumb a:hover {
  color: var(--accent);
}

.crumb-bar {
  padding-top: 1.4rem;
  margin-top: 1.4rem;
}

.crumb-nav {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--muted);
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.crumb-nav a {
  color: var(--muted);
  text-decoration: none;
}

.crumb-nav a:hover {
  color: var(--accent);
}

.crumb-nav span[aria-current] {
  color: var(--text-soft);
}

/* ---- 文章 Hero ---- */
.post-hero {
  padding: 1.6rem 0 2rem;
  border-bottom: 1px solid var(--border);
}

.post-hero .post-meta {
  margin-bottom: 0.9rem;
}

.post-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.6vw, 2.3rem);
  color: var(--text);
  line-height: 1.35;
  margin: 0 0 0.8rem;
}

.post-hero .post-summary {
  color: var(--text-soft);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 720px;
  margin: 0;
}

.read-time {
  font-family: var(--font-mono);
}

/* ---- 正文 ---- */
.prose {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.4rem 0 1rem;
}

/* ---- 文末下载引导卡 ---- */
.guide-card {
  max-width: 720px;
  margin: 1rem auto 3rem;
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 1.8rem;
}

.guide-t {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--text);
  margin: 0 0 0.6rem;
}

.guide-card p {
  color: var(--muted);
  line-height: 1.75;
  margin: 0 0 1.2rem;
}

.guide-acts {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

/* ---- 延伸阅读 ---- */
#related-posts {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--gutter) 2.6rem;
}

.rel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.1rem;
}

.rel-card {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.rel-card h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  margin: 0;
  line-height: 1.4;
}

.rel-card h3 a {
  color: var(--text);
  text-decoration: none;
}

.rel-card h3 a:hover {
  color: var(--accent);
}

.rel-card p {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.65;
  margin: 0;
}

/* ---- 上/下一篇 ---- */
#post-nav {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--gutter) 3.4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.post-nav-link {
  border: 1px solid var(--border);
  background: var(--panel);
  padding: 1rem 1.2rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  transition: border-color 0.15s;
}

.post-nav-link:hover {
  border-color: var(--edge);
}

.post-nav-link--next {
  text-align: right;
}

.post-nav-dir {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted);
}

.post-nav-title {
  color: var(--text-soft);
  font-size: 0.92rem;
  line-height: 1.5;
}

.post-nav-spacer {
  display: block;
}

@media (max-width: 640px) {
  #post-nav {
    grid-template-columns: 1fr;
  }
  .post-nav-link--next {
    text-align: left;
  }
}

/* ---- 右下角常驻下载浮层(文章页专用) ---- */
.dl-fab {
  position: fixed;
  right: 1.2rem;
  bottom: 1.2rem;
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent);
  color: var(--bg);
  border: 1px solid var(--accent-dark);
  padding: 0.7rem 1.1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  text-decoration: none;
  box-shadow: 3px 3px 0 var(--key-shadow);
}

.dl-fab svg {
  width: 16px;
  height: 16px;
}

.dl-fab:hover {
  background: var(--accent-dark);
}