/* ============================================================
   李静训和她的时代 · 全文阅读页样式（docs/*.html）
   与主页同一设计语言：宣纸 / 墨 / 朱砂 / 青绿
   ============================================================ */

:root {
  --paper: #f2ecdf;
  --paper-deep: #e9e1cd;
  --ink: #211a13;
  --ink-soft: #5b5342;
  --ink-faint: #8d8572;
  --cinnabar: #a23f2a;
  --celadon: #3b6155;
  --line: rgba(33, 26, 19, .16);
  --line-soft: rgba(33, 26, 19, .08);
  --serif: "Songti SC", "Noto Serif SC", "STSong", "SimSun", serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", var(--serif);
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

[data-theme="dark"] {
  --paper: #17130d;
  --paper-deep: #1f1a12;
  --ink: #e8e0cc;
  --ink-soft: #a79d86;
  --ink-faint: #746b58;
  --cinnabar: #c96a4e;
  --celadon: #7fa396;
  --line: rgba(232, 224, 204, .16);
  --line-soft: rgba(232, 224, 204, .08);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}
::selection { background: rgba(162, 63, 42, .18); }
img { max-width: 100%; height: auto; }
a { color: var(--cinnabar); text-decoration: none; }
a:hover { text-decoration: underline; }

/* 顶栏 */
.d-header {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 1.4rem;
  padding: .85rem 2rem;
  background: color-mix(in srgb, var(--paper) 90%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.d-back { font-family: var(--sans); font-size: .8rem; letter-spacing: .12em; color: var(--ink-soft); }
.d-back:hover { color: var(--cinnabar); text-decoration: none; }
.d-cat {
  font-family: var(--sans); font-size: .68rem; letter-spacing: .26em; color: var(--cinnabar);
  border: 1px solid var(--line); padding: .22rem .7rem;
}
.d-home { margin-left: auto; font-family: var(--sans); font-size: .72rem; letter-spacing: .18em; color: var(--ink-faint); }
.d-home:hover { color: var(--cinnabar); text-decoration: none; }

/* 正文主体 */
.d-main { max-width: 880px; margin: 0 auto; padding: 3.4rem 2rem 4rem; }
.d-title {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  line-height: 1.35; letter-spacing: .05em; font-weight: 700;
  padding-bottom: 1.4rem; margin-bottom: 2.6rem;
  border-bottom: 1px solid var(--line);
}

.d-body > * { margin-bottom: 1.4rem; }
.d-body h2 {
  font-size: 1.45rem; letter-spacing: .06em; margin-top: 3rem; margin-bottom: 1.2rem;
  padding-bottom: .5rem; border-bottom: 1px solid var(--line-soft);
  font-weight: 700;
}
.d-body h3 { font-size: 1.16rem; letter-spacing: .05em; margin-top: 2.2rem; margin-bottom: .9rem; font-weight: 600; }
.d-body h4 { font-size: 1rem; margin-top: 1.6rem; margin-bottom: .7rem; font-weight: 600; color: var(--ink-soft); }
.d-body p { line-height: 2; color: var(--ink); }
.d-body p + p { margin-top: .9rem; }
.d-body strong { color: var(--ink); font-weight: 700; }
.d-body em { font-style: italic; }
.d-body hr { border: none; border-top: 1px solid var(--line); margin: 3rem 0; }

/* 引用块（楷体） */
.d-body blockquote {
  font-family: var(--kai);
  border-left: 2px solid var(--cinnabar);
  padding: 1rem 1.4rem;
  margin: 1.6rem 0;
  color: var(--ink-soft);
  background: linear-gradient(90deg, rgba(162, 63, 42, .07), transparent 70%);
  line-height: 2;
}
.d-body blockquote p { color: var(--ink-soft); }
.d-body blockquote p + p { margin-top: .6rem; }

/* 列表 */
.d-body ul, .d-body ol { padding-left: 1.6rem; margin: 1rem 0; }
.d-body li { margin: .4rem 0; line-height: 1.9; }
.d-body li::marker { color: var(--cinnabar); }
.d-body ul ul, .d-body ol ul, .d-body ul ol, .d-body ol ol { margin: .3rem 0; }

/* 表格 */
.d-body table {
  width: 100%; border-collapse: collapse; margin: 1.6rem 0;
  font-size: .92rem; line-height: 1.75;
}
.d-body thead th {
  background: var(--paper-deep); font-weight: 600; text-align: left;
  padding: .65rem 1rem; border-bottom: 1px solid var(--ink);
  font-family: var(--sans); font-size: .82rem; letter-spacing: .08em;
}
.d-body tbody td {
  padding: .6rem 1rem; border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
.d-body tbody tr:nth-child(even) { background: color-mix(in srgb, var(--paper-deep) 45%, transparent); }
.d-body tbody tr:hover { background: rgba(59, 97, 85, .08); }

/* 代码块与行内代码 */
.d-body pre {
  background: var(--paper-deep);
  border: 1px solid var(--line);
  padding: 1.2rem 1.4rem; overflow-x: auto;
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: .86rem; line-height: 1.7; margin: 1.4rem 0;
}
.d-body code {
  font-family: "SF Mono", Menlo, Consolas, monospace;
  font-size: .86em; background: var(--paper-deep);
  padding: .1rem .35rem; border-radius: 2px;
}
.d-body pre code { background: none; padding: 0; }

/* 图片与文件引用 */
.d-body img {
  display: block; margin: 1.8rem auto; border: 1px solid var(--line);
  box-shadow: 0 14px 34px -20px rgba(33,26,19,.4);
}
a.fileref { color: var(--celadon); border-bottom: 1px dashed rgba(59,97,85,.4); }
a.fileref:hover { color: var(--cinnabar); border-color: var(--cinnabar); text-decoration: none; }
a.fileref code { color: inherit; background: none; padding: 0; }

/* 精读系列导航 */
.feat-nav {
  position: sticky; top: 48px; z-index: 45;
  display: flex; flex-wrap: wrap; gap: .3rem .4rem; align-items: center;
  padding: .6rem 2rem;
  background: color-mix(in srgb, var(--paper-deep) 62%, transparent);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
.feat-nav .fn-label { font-family: var(--sans); font-size: .66rem; letter-spacing: .26em; color: var(--ink-faint); margin-right: .4rem; }
.feat-nav a {
  font-family: var(--sans); font-size: .76rem; letter-spacing: .1em;
  color: var(--ink-soft); padding: .22rem .65rem;
  border: 1px solid transparent; transition: color .25s, border-color .25s;
}
.feat-nav a:hover { color: var(--cinnabar); border-color: var(--line); text-decoration: none; }
.feat-nav a.active { color: var(--cinnabar); border-color: var(--cinnabar); }

/* 内嵌排版图片（正文大图 / 表格内缩略） */
.doc-fig { margin: 1.5rem auto; max-width: 560px; }
.doc-fig img { width: 100%; display: block; border: 1px solid var(--line); box-shadow: 0 14px 34px -22px rgba(33,26,19,.45); }
.doc-fig figcaption { text-align: center; font-family: var(--sans); font-size: .7rem; color: var(--ink-faint); letter-spacing: .1em; padding-top: .55rem; }
td .doc-fig, th .doc-fig { display: inline-block; margin: 0 .1rem; max-width: 130px; vertical-align: middle; }
td .doc-fig img, th .doc-fig img { width: auto; height: 60px; box-shadow: none; border: 1px solid var(--line-soft); }
td .doc-fig figcaption, th .doc-fig figcaption { display: none; }

/* 图文切换 */
.img-toggle {
  font-family: var(--sans); font-size: .72rem; letter-spacing: .14em;
  color: var(--ink-soft); background: transparent;
  border: 1px solid var(--line); padding: .3rem .7rem; cursor: pointer;
  transition: color .25s, border-color .25s;
}
.img-toggle:hover { color: var(--cinnabar); border-color: var(--cinnabar); }
body.no-img .doc-fig { display: none !important; }

/* 页脚 */
.d-footer {
  border-top: 1px solid var(--line);
  padding: 2rem; text-align: center;
  display: flex; justify-content: center; gap: 1.6rem;
  font-family: var(--sans); font-size: .74rem; color: var(--ink-faint); letter-spacing: .14em;
}
.d-footer a { color: var(--ink-soft); }
.d-footer a:hover { color: var(--cinnabar); text-decoration: none; }

@media (max-width: 640px) {
  .d-header { padding: .7rem 1rem; gap: .8rem; }
  .d-main { padding: 2rem 1.1rem 3rem; }
  .d-cat { display: none; }
}