/* ==========================================================================
   观隅 · 全局排版基座 (main.css)
   用于所有子页面(列表页 / 文章正文页)的统一视觉与排版系统。
   基调:宣纸白底、深灰墨色、墨水屏般沉静的长文阅读质感。
   ========================================================================== */

/* ==========================================================================
   观隅 · 全局排版基座 (main.css)
   ========================================================================== */
/* 强制引入京华老宋体网络字体 */
@font-face {
  font-family: 'KingHwa';
  src: url('../fonts/jinghwa.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
  /* 保证文字优先显示 防止字体加载慢导致白屏 */
}

/* ==========================================================================
   观隅 · 全局排版基座 (main.css)
   用于所有子页面(列表页 / 文章正文页)的统一视觉与排版系统。
   基调:宣纸白底、深灰墨色、墨水屏般沉静的长文阅读质感。
   ========================================================================== */
   
/* 强制引入京华老宋体网络字体 */
@font-face {
  font-family: 'KingHwa';
  src: url('../fonts/jinghwa.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap; 
}

:root {
  /* 兄弟帮你把删掉的颜色和宽度全补回来了 严禁再删 */
  --paper:        #f7f5f0;   
  --paper-alt:    #efece3;   
  --paper-line:   #e4e0d5;   

  --ink:          #2a2a26;   
  --ink-soft:     #55534a;   
  --ink-faint:    #8f8c7f;   
  --ink-hair:     rgba(42,42,38,0.12);  
  --ink-hair-strong: rgba(42,42,38,0.24);

  --seal:         #8a2a1f;   

  /* 强行接管全局衬线体 第一顺位调用咱们刚挂载的 KingHwa */
  --serif: "KingHwa", "Palatino Linotype", "Book Antiqua", "Noto Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Helvetica Neue", Arial, sans-serif;

  --content-width: 720px;
  --wide-width: 960px;
  --gutter: 6vw;
}



*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 17px;
  line-height: 2.05;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}


img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

::selection {
  background: var(--ink);
  color: var(--paper);
}

/* ==========================================================================
   顶部固定导航(与旗舰主页保持一致的克制感)
   ========================================================================== */

.site-nav {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: center;
  padding: 22px 24px;
  background: rgba(247, 245, 240, 0.88);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--ink-hair);
}

.site-nav nav {
  display: flex;
  gap: 44px;
}

.site-nav a {
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.26em;
  color: var(--ink-soft);
  transition: color .4s ease, letter-spacing .4s ease;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--ink);
  letter-spacing: 0.32em;
}

/* ==========================================================================
   页面容器 / 顶部题头
   ========================================================================== */

.page-head {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 64px var(--gutter) 8px var(--gutter);
}

.page-head .page-eyebrow {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--ink-faint);
  margin-bottom: 18px;
}

.page-head h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(28px, 4vw, 40px);
  letter-spacing: 0.12em;
  color: var(--ink);
  margin: 0 0 14px 0;
}

.page-head .page-desc {
  font-family: var(--sans);
  font-size: 13.5px;
  line-height: 1.9;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  max-width: 56ch;
}

/* ==========================================================================
   锚点导航(用于文章列表页,跳转至各区块)
   ========================================================================== */

.anchor-nav {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 28px var(--gutter) 0 var(--gutter);
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  border-top: 1px solid var(--ink-hair);
  border-bottom: 1px solid var(--ink-hair);
}

.anchor-nav a {
  font-family: var(--sans);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  padding: 16px 0;
  position: relative;
}

.anchor-nav a .anchor-index {
  color: var(--ink-faint);
  margin-right: 8px;
  font-size: 11px;
}

.anchor-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 10px;
  width: 0;
  height: 1px;
  background: var(--ink);
  transition: width .4s ease;
}

.anchor-nav a:hover::after {
  width: 100%;
}

/* ==========================================================================
   区块分割线 / 区块标题
   ========================================================================== */

.section-divider {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.section-divider .divider-rule {
  border: none;
  border-top: 1px solid var(--ink-hair);
  margin: 0;
}

.section-block {
  max-width: var(--wide-width);
  margin: 0 auto;
  padding: 72px var(--gutter) 40px var(--gutter);
}

.section-block .section-title {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 36px;
}

.section-block .section-title h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(20px, 2.4vw, 26px);
  letter-spacing: 0.16em;
  color: var(--ink);
  margin: 0;
}

.section-block .section-title .section-count {
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

/* ==========================================================================
   文章列表条目(占位条目样式)
   ========================================================================== */

.entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.entry-item {
  border-top: 1px solid var(--ink-hair);
}

.entry-item:last-child {
  border-bottom: 1px solid var(--ink-hair);
}

.entry-link {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 4px;
  transition: padding-left .35s ease, color .35s ease;
}

.entry-link:hover {
  padding-left: 14px;
  color: var(--ink);
}

.entry-main {
  display: flex;
  align-items: baseline;
  gap: 20px;
  min-width: 0;
}

.entry-num {
  font-family: var(--sans);
  font-size: 12px;
  color: var(--ink-faint);
  flex-shrink: 0;
  width: 2.4em;
}

.entry-title {
  font-family: var(--serif);
  font-size: 16.5px;
  letter-spacing: 0.04em;
  color: var(--ink);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.entry-meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.05em;
  color: var(--ink-faint);
}

.entry-status {
  font-size: 11px;
  color: var(--ink-faint);
  border: 1px solid var(--ink-hair-strong);
  padding: 3px 9px;
  border-radius: 2px;
  letter-spacing: 0.08em;
}

/* ==========================================================================
   文章正文:极简标题系统
   ========================================================================== */

.article {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 80px var(--gutter) 140px var(--gutter);
}

.article-meta {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--ink-faint);
  margin-bottom: 22px;
}

.article h1 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(26px, 4vw, 36px);
  line-height: 1.5;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin: 0 0 40px 0;
}

.article h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.08em;
  color: var(--ink);
  margin: 56px 0 24px 0;
}

.article h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin: 40px 0 18px 0;
}

.article p {
  margin: 0 0 28px 0;
  color: var(--ink);
}

.article p:last-child {
  margin-bottom: 0;
}

/* ---- 标签(tags) ---- */
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 0 0;
}

.tag {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--ink-soft);
  border: 1px solid var(--ink-hair-strong);
  padding: 4px 11px;
  border-radius: 2px;
}

/* ---- 引用块(blockquote) ---- */
.article blockquote {
  margin: 44px 0;
  padding: 2px 0 2px 26px;
  border-left: 2px solid var(--seal);
  font-family: var(--serif);
  font-style: normal;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-soft);
}

.article blockquote p {
  margin-bottom: 12px;
}

.article blockquote cite {
  display: block;
  margin-top: 10px;
  font-family: var(--sans);
  font-size: 11.5px;
  font-style: normal;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
}

/* ==========================================================================
   页脚
   ========================================================================== */

.site-foot {
  border-top: 1px solid var(--ink-hair);
  padding: 40px 24px 56px 24px;
  text-align: center;
}

.site-foot .foot-name {
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.3em;
  color: var(--ink-faint);
  margin-bottom: 10px;
}

.site-foot .foot-note {
  font-family: var(--sans);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
  line-height: 1.9;
}

/* ==========================================================================
   移动端适配 (深度重构版)
   ========================================================================== */

@media (max-width:760px) {

  /* 1. 基础字号与行距的微调 增加深夜阅读舒适度 */
  body {
    font-size: 16px;
    /*[span_4](start_span)[span_4](end_span) */
    line-height: 1.95;
    /*[span_5](start_span)[span_5](end_span) */
  }

  /* 2. 顶部导航防拥挤处理 适配刘海屏与窄屏 */
  .site-nav {
    padding: 16px env(safe-area-inset-right, 16px) 16px env(safe-area-inset-left, 16px);
  }

  .site-nav nav {
    gap: 20px;
  }

  .site-nav a {
    font-size: 12px;
    letter-spacing: 0.1em;
  }

  /* 3. 页头与区块容器的留白呼吸感 */
  .page-head {
    padding: 40px 6vw 0 6vw;
    /*[span_6](start_span)[span_6](end_span) */
  }

  .anchor-nav {
    gap: 22px;
    /*[span_7](start_span)[span_7](end_span) */
    padding: 22px 6vw 0 6vw;
    /*[span_8](start_span)[span_8](end_span) */
  }

  .section-block {
    padding: 48px 6vw 24px 6vw;
    /*[span_9](start_span)[span_9](end_span) */
  }

  .section-block .section-title h2 {
    letter-spacing: 0.1em;
    /*[span_10](start_span)[span_10](end_span) */
  }

  /* 4. 重构文章列表对齐逻辑 废弃硬核偏移量 */
  .entry-link {
    flex-direction: column;
    /*[span_11](start_span)[span_11](end_span) */
    align-items: flex-start;
    /*[span_12](start_span)[span_12](end_span) */
    gap: 12px;
    /*[span_13](start_span)[span_13](end_span) */
  }

  .entry-main {
    width: 100%;
  }

  .entry-title {
    white-space: normal;
    /*[span_14](start_span)[span_14](end_span) */
    line-height: 1.6;
  }

  .entry-meta {
    /* 废弃原有的 calc 强行对齐 采用弹性流式布局 */
    padding-left: 0;
    width: 100%;
    justify-content: flex-start;
  }

  /* 5. 沉浸式正文阅读区适配 */
  .article {
    padding: 48px 6vw 80px 6vw;
    /*[span_15](start_span)[span_15](end_span) */
  }

  .article h1 {
    font-size: 24px;
    letter-spacing: 0.04em;
    /*[span_16](start_span)[span_16](end_span) */
    line-height: 1.4;
  }

  .article blockquote {
    margin: 32px 0;
    padding: 2px 0 2px 16px;
    font-size: 15px;
  }
}