/* 《迟暮》黑白简约高级感专属排版：极简杂志黑白灰层次 / 精细字距行距 / 克制的留白 / 尾段独立区块 */
.diary-post .content {
  background: linear-gradient(180deg, #f6f6f4 0%, #ffffff 26%, #f0f0ee 100%);
  color: #161616;
  padding: 8rem 1.8rem 9rem;
  text-align: center;
  overflow: hidden;
}

.diary-post .content h1 {
  font-size: 2.6rem;
  font-weight: 500;
  letter-spacing: 0.3em;
  text-indent: 0.3em;
  color: #101010;
  margin: 0 0 1rem;
  /* 克制的双影：极浅灰错位，呼应"迟暮"的余影 */
  text-shadow:
    1px 1px 0 rgba(0, 0, 0, 0.08),
    -1px -1px 0 rgba(255, 255, 255, 0.6);
}

.diary-post .content .diary-date {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: rgba(22, 22, 22, 0.34);
  margin-bottom: 4.5rem;
}

/* 正文容器：精细字距与行距，克制留白 */
.diary-post .content .cmu-body {
  max-width: 26rem;
  margin: 0 auto;
  font-size: 1.02rem;
  line-height: 1.9;
  letter-spacing: 0.06em;
  color: #222;
}

.diary-post .content .cmu-title {
  font-size: 1.7rem;
  font-weight: 500;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  color: #0f0f0f;
  margin: 0 0 4.5rem;
}

.diary-post .content .cmu-line {
  margin: 0;
  padding: 0.18rem 0;
}

/* 段落分组：原文空行对应的视觉间距 */
.diary-post .content .cmu-block {
  margin-top: 2.2rem;
}
.diary-post .content .cmu-title + .cmu-block {
  margin-top: 2.2rem;
}

/* 段落间距：原文空行对应 */
.diary-post .content .cmu-line + .cmu-line {
  margin-top: 0;
}

.diary-post .content .cmu-body > .cmu-line {
  margin-top: 0;
}

/* 段落分组间距优先于普通行间距（更高特异性，确保 .cmu-block 的段落间距真实生效） */
.diary-post .content .cmu-line.cmu-block,
.diary-post .content .cmu-line + .cmu-line.cmu-block,
.diary-post .content .cmu-body > .cmu-line.cmu-block {
  margin-top: 2.2rem;
}

/* 段落间空行（md 空行转视觉间距）：用 .cmu-gap 不生成，靠分组判断——这里以 cmu-line 相邻间距统一，
   段落分隔通过 markdown 中空 <p> 不可行；改由分段样式区分：首行段落加 .cmu-block */

/* 分隔线：低调细线 + 三破折号 */
.diary-post .content .cmu-rule {
  margin: 3.8rem 0 3.8rem;
  font-size: 0.9rem;
  letter-spacing: 0.55em;
  text-indent: 0.55em;
  color: rgba(22, 22, 22, 0.42);
  position: relative;
}
.diary-post .content .cmu-rule::before,
.diary-post .content .cmu-rule::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 5.2rem;
  height: 1px;
  background: rgba(22, 22, 22, 0.24);
}
.diary-post .content .cmu-rule::before { left: 0; }
.diary-post .content .cmu-rule::after { right: 0; }

/* 尾段独立区块：上下双线框定 + 加深灰阶层次，章节区隔明显但不生硬（保持黑白简约） */
.diary-post .content .cmu-final {
  margin-top: 4.6rem;
  padding: 4rem 1.6rem 3.2rem;
  border-top: 2px solid rgba(22, 22, 22, 0.32);
  border-bottom: 1px solid rgba(22, 22, 22, 0.16);
  background: linear-gradient(180deg, rgba(22, 22, 22, 0.10) 0%, rgba(22, 22, 22, 0.05) 55%, rgba(22, 22, 22, 0.015) 100%);
  color: #0f0f0f;
  border-radius: 0;
  box-shadow: none;
}
.diary-post .content .cmu-final .cmu-line {
  color: #0f0f0f;
  font-weight: 500;
}

@media (max-width: 720px) {
  .diary-post .content {
    padding: 6rem 1.1rem 7.5rem;
  }
  .diary-post .content h1 {
    font-size: 2rem;
  }
  .diary-post .content .cmu-body {
    font-size: 0.98rem;
    line-height: 1.85;
  }
  .diary-post .content .cmu-title {
    font-size: 1.4rem;
    margin-bottom: 3.5rem;
  }
  .diary-post .content .cmu-final {
    margin-top: 3.2rem;
    padding: 3rem 1rem 2.4rem;
  }
}