/* ===== 文章详情页（内容优先阅读排版） ===== */
.article-page {
  padding: calc(var(--nav-h) + 56px) 24px 80px;
  min-height: 100vh;
}

.post {
  max-width: 720px;
  margin: 0 auto;
}

.back-link {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 28px;
  transition: color 0.2s;
}
.back-link:hover { color: var(--accent); }

.post-head {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.post-cat {
  display: inline-block;
  font-size: 12px;
  color: var(--accent);
  background: rgba(77, 208, 255, 0.1);
  padding: 3px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.post-title {
  font-size: clamp(26px, 4.5vw, 36px);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin: 0 0 16px;
  background: linear-gradient(180deg, #fff 30%, #aab4c4 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.post-byline {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-dim);
}

/* ===== 正文 ===== */
.post-content {
  font-size: 16.5px;
  line-height: 1.9;
  color: var(--text);
}
.post-content p { margin: 0 0 1.2em; }
.post-content h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 2em 0 0.8em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}
.post-content h2::before {
  content: "";
  width: 4px;
  height: 1.1em;
  background: var(--accent-grad);
  border-radius: 2px;
  flex-shrink: 0;
}
.post-content h3 {
  font-size: 18px;
  font-weight: 600;
  margin: 1.6em 0 0.6em;
  color: var(--text);
}
.post-content a {
  color: var(--accent);
  border-bottom: 1px solid rgba(77, 208, 255, 0.3);
  transition: border-color 0.2s;
}
.post-content a:hover { border-bottom-color: var(--accent); }
.post-content strong { color: var(--text); font-weight: 700; }
.post-content blockquote {
  margin: 1.5em 0;
  padding: 14px 18px;
  border-left: 3px solid var(--accent);
  background: var(--surface);
  color: var(--text-dim);
  border-radius: 0 8px 8px 0;
  font-size: 15px;
}
.post-content blockquote p { margin: 0; }
.post-content ul, .post-content ol {
  margin: 1em 0 1.4em;
  padding-left: 1.6em;
}
.post-content li { margin-bottom: 0.5em; }
.post-content code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1px 6px;
  border-radius: 4px;
  color: var(--accent);
}
.post-content hr {
  border: none;
  border-top: 1px dashed var(--border);
  margin: 2em 0;
}

/* ===== 文章底部 ===== */
.post-foot { margin-top: 40px; }
.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 20px;
  border-top: 1px dashed var(--border);
}
.post-tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  background: rgba(77, 208, 255, 0.08);
  padding: 4px 12px;
  border-radius: 20px;
}

.post-nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 28px;
}
.post-nav a {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.2s;
  max-width: 48%;
}
.post-nav a:hover { color: var(--accent); }
.post-nav .next { margin-left: auto; text-align: right; }

@media (max-width: 640px) {
  .article-page { padding: calc(var(--nav-h) + 32px) 18px 60px; }
  .post-content { font-size: 15.5px; }
  .post-nav { flex-direction: column; }
  .post-nav a { max-width: 100%; }
  .post-nav .next { margin-left: 0; text-align: left; }
}