/* 藏书阁 · 基础主题（第一期）
   复古深色古董书店：无圆角、无毛玻璃、无彩色渐变；ease-out 沉稳，悬浮暖光。 */

/* 展示字体自托管（不外链，避免向第三方泄露访问）；中文走系统宋体栈。 */
@font-face {
  font-family: "Cormorant Garamond"; font-style: normal; font-weight: 400; font-display: swap;
  src: url("../fonts/cormorant-garamond-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond"; font-style: normal; font-weight: 500; font-display: swap;
  src: url("../fonts/cormorant-garamond-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Cormorant Garamond"; font-style: italic; font-weight: 400; font-display: swap;
  src: url("../fonts/cormorant-garamond-latin-400-italic.woff2") format("woff2");
}

:root {
  --bg-primary: #0e0d0b;       /* 深棕黑，像老木书架 */
  --bg-secondary: #1a1815;     /* 稍浅的暗色，卡片/面板底 */
  --bg-card: #211e19;          /* 书籍卡片底色 */
  --text-primary: #c8c0b4;     /* 主文字，泛黄的纸色 */
  --text-secondary: #8a8278;   /* 次要文字 */
  --text-faded: rgba(200, 192, 180, 0.35);
  --accent-warm: #b8926a;      /* 烫金色，用于标题和强调 */
  --accent-dim: #6b5d4d;       /* 暗金，用于边框和装饰线 */
  --border-subtle: rgba(107, 93, 77, 0.2);
  --shadow-warm: rgba(30, 25, 18, 0.6);

  --azusa-tint: #9a8f7e;       /* Azusa 的署名色：偏冷的旧银 */

  --serif-cn: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --serif-display: "Cormorant Garamond", "Noto Serif SC", serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1); /* ease-out，不弹 */
}

* { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--serif-cn);
  font-weight: 300;
  line-height: 1.9;
  letter-spacing: 0.01em;
  min-height: 100vh;
  position: relative;
}

/* 极淡纸纹 grain，自包含 SVG，不发外部请求 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.04;
  mix-blend-mode: soft-light;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 220 220' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* 壁龛暗角：边缘压暗，中心透出，像凹进墙里的书架龛 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background: radial-gradient(120% 85% at 50% 18%, transparent 42%, rgba(0, 0, 0, 0.5) 100%);
}

a { color: var(--accent-warm); text-decoration: none; transition: color 0.4s var(--ease); }
a:hover { color: var(--text-primary); }

::selection { background: rgba(184, 146, 106, 0.28); color: var(--text-primary); }

.wrap { max-width: 860px; margin: 0 auto; padding: 0 28px; }
.wrap--narrow { max-width: 680px; }

/* 顶部返回条 */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 48px;
}
.topbar .back { font-size: 0.92rem; letter-spacing: 0.08em; color: var(--text-secondary); }
.topbar .back:hover { color: var(--accent-warm); }
.topbar .here { font-family: var(--serif-display); font-size: 1.25rem; color: var(--accent-warm); letter-spacing: 0.06em; }
.topbar .here.sm { font-size: 1rem; }

/* ── 首页 ───────────────────────────────────────── */
.masthead { text-align: center; padding: 88px 0 64px; }
.masthead h1 {
  font-family: var(--serif-display);
  font-weight: 500;
  font-size: clamp(3rem, 9vw, 5rem);
  letter-spacing: 0.5em;
  text-indent: 0.5em; /* 抵消末字 letter-spacing */
  color: var(--accent-warm);
  text-shadow: 0 2px 18px var(--shadow-warm);
}
.masthead .subtitle {
  margin-top: 22px;
  color: var(--text-secondary);
  font-size: 1.05rem;
  letter-spacing: 0.22em;
  font-style: italic;
}
.masthead::after {
  content: "❦";
  display: block;
  margin: 30px auto 0;
  color: var(--accent-dim);
  font-size: 1.1rem;
  letter-spacing: 0.4em;
  text-indent: 0.4em;
}

/* 五区域：一面深色木墙上，几层错落、浮出墙面的书架板 */
.shelves { margin: 8px 0; }

.shelf-row {
  display: block;
  position: relative;
  padding: 30px 30px 30px 34px;
  margin: 0 0 28px;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-card) 58%, #1a1713 100%);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-dim);
  box-shadow:
    inset 0 1px 0 rgba(184, 146, 106, 0.10),   /* 板面顶光 */
    0 16px 28px -18px var(--shadow-warm);        /* 板下投影：浮出墙面 */
  transition: transform 0.55s var(--ease), box-shadow 0.55s var(--ease), border-left-color 0.55s var(--ease);
}

/* 高低错落：个人书架左右错开，共笔是最宽最厚的一层 */
.shelf-row:nth-child(1) { margin-right: 10%; }
.shelf-row:nth-child(2) { margin-left: 10%; }
.shelf-row:nth-child(3) { padding-top: 36px; padding-bottom: 36px; }

/* 前排与后排之间的小花饰 */
.shelf-row:nth-child(3)::after {
  content: "❧";
  position: absolute; left: 0; right: 0; bottom: -30px;
  text-align: center; color: var(--accent-dim); font-size: 0.9rem; pointer-events: none;
}

a.shelf-row:hover {
  transform: translateX(6px);
  border-left-color: var(--accent-warm);
  box-shadow:
    inset 0 1px 0 rgba(184, 146, 106, 0.18),
    inset 16px 0 32px -22px rgba(184, 146, 106, 0.55),  /* 左缘暖光汇聚 */
    0 22px 36px -16px var(--shadow-warm);
}

.shelf-row .name {
  font-family: var(--serif-display);
  font-size: 1.7rem;
  color: var(--text-primary);
  letter-spacing: 0.14em;
}
a.shelf-row:hover .name { color: var(--accent-warm); }
.shelf-row .latest { margin-top: 8px; color: var(--text-secondary); font-size: 0.95rem; }
.shelf-row .latest .title-q { color: var(--text-primary); }
.shelf-row .latest .none { color: var(--text-faded); }

/* 后排：共读 / 拾遗——退入暗处，更小更淡，制造纵深 */
.shelf-row.is-upcoming {
  margin: 6px 8% 28px;
  padding: 22px 28px;
  background: linear-gradient(180deg, #161410 0%, #131210 100%);
  border-left-color: rgba(107, 93, 77, 0.4);
  box-shadow: 0 10px 20px -16px var(--shadow-warm);
  opacity: 0.5;
  cursor: default;
}
.shelf-row.is-upcoming .name { font-size: 1.35rem; color: var(--text-secondary); }
.shelf-row.is-upcoming .badge {
  font-size: 0.78rem; letter-spacing: 0.16em; color: var(--text-faded);
  border: 1px solid var(--border-subtle); padding: 2px 10px; margin-left: 14px; vertical-align: middle;
}

/* 最近更新 */
.recent { margin: 80px 0 64px; }
.recent h2 {
  font-family: var(--serif-display); font-weight: 500; font-size: 1.15rem;
  color: var(--accent-warm); letter-spacing: 0.3em; text-align: center; margin-bottom: 8px;
}
.recent .rule { width: 40px; height: 1px; background: var(--accent-dim); margin: 0 auto 32px; }
.recent ul { list-style: none; }
.recent li {
  display: flex; justify-content: space-between; gap: 18px;
  padding: 14px 4px; border-bottom: 1px solid var(--border-subtle); font-size: 0.96rem;
}
.recent li .when { color: var(--text-faded); font-variant-numeric: tabular-nums; white-space: nowrap; margin-left: 14px; }
.recent li .who { color: var(--text-secondary); }

/* ── 书架页：竖向书脊列表 ───────────────────────── */
.work-list { list-style: none; padding-bottom: 80px; }
.work-card {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-left: 3px solid var(--accent-dim);
  padding: 26px 28px;
  margin-bottom: 18px;
  transition: transform 0.5s var(--ease), box-shadow 0.5s var(--ease), border-left-color 0.5s var(--ease);
}
.work-card:hover {
  transform: translateY(-2px);
  border-left-color: var(--accent-warm);
  box-shadow: 0 14px 40px -22px var(--shadow-warm), 0 0 0 1px var(--border-subtle);
}
.work-card .wt {
  font-family: var(--serif-display); font-size: 1.5rem; color: var(--text-primary); letter-spacing: 0.06em;
}
.work-card:hover .wt { color: var(--accent-warm); }
.work-card .meta { margin-top: 10px; color: var(--text-secondary); font-size: 0.88rem; letter-spacing: 0.08em; }
.work-card .meta .dot { color: var(--accent-dim); margin: 0 10px; }

.empty-shelf { color: var(--text-faded); text-align: center; padding: 80px 0; font-style: italic; letter-spacing: 0.1em; }

/* ── 阅读页 ─────────────────────────────────────── */
.reading { padding-bottom: 96px; }
.reading .work-head { text-align: center; padding: 28px 0 40px; }
.reading .work-head h1 {
  font-family: var(--serif-display); font-weight: 500;
  font-size: clamp(2.2rem, 6vw, 3rem); color: var(--accent-warm); letter-spacing: 0.12em;
}
.reading .work-head .byline { margin-top: 18px; color: var(--text-secondary); font-size: 0.95rem; letter-spacing: 0.16em; }

.rule-ornament { display: flex; align-items: center; justify-content: center; gap: 14px; color: var(--accent-dim); margin: 8px 0 44px; }
.rule-ornament::before, .rule-ornament::after { content: ""; height: 1px; width: 90px; background: var(--accent-dim); opacity: 0.6; }
.rule-ornament .mark { font-size: 0.8rem; }

/* 正文排版 */
.article { font-size: 1.12rem; line-height: 2.05; }
.article p { margin: 0 0 1.5em; text-align: justify; }
.article h2, .article h3 {
  font-family: var(--serif-display); font-weight: 500; color: var(--accent-warm);
  letter-spacing: 0.08em; margin: 1.8em 0 0.8em;
}
.article h2 { font-size: 1.6rem; }
.article h3 { font-size: 1.3rem; }
.article em { font-style: italic; color: var(--text-primary); }
.article strong { font-weight: 600; color: var(--accent-warm); }
.article blockquote {
  border-left: 2px solid var(--accent-dim);
  padding: 4px 0 4px 24px; margin: 1.8em 0;
  color: var(--text-secondary); font-style: italic;
}
.article hr { border: 0; height: 1px; background: var(--border-subtle); margin: 2.4em 0; }
.article a { border-bottom: 1px solid var(--border-subtle); }

/* 文后评论 */
.endnotes { margin-top: 80px; padding-top: 8px; }
.endnotes .head {
  font-family: var(--serif-display); font-weight: 500; font-size: 1.1rem;
  color: var(--accent-warm); letter-spacing: 0.3em; text-align: center; margin-bottom: 6px;
}
.endnotes .rule { width: 40px; height: 1px; background: var(--accent-dim); margin: 0 auto 36px; }

.comment { padding: 18px 0; border-bottom: 1px solid var(--border-subtle); }
.comment.is-reply { margin-left: 30px; border-left: 1px solid var(--border-subtle); padding-left: 22px; border-bottom: none; }
.comment .who { font-family: var(--serif-display); font-size: 1.05rem; letter-spacing: 0.1em; }
.comment .who.lumen { color: var(--accent-warm); }
.comment .who.azusa { color: var(--azusa-tint); }
.comment .when { color: var(--text-faded); font-size: 0.78rem; margin-left: 12px; font-variant-numeric: tabular-nums; }
.comment .body { margin-top: 8px; color: var(--text-primary); font-size: 1rem; line-height: 1.85; }

.endnotes .pending {
  margin-top: 40px; text-align: center; color: var(--text-faded);
  font-size: 0.85rem; letter-spacing: 0.14em; font-style: italic;
}
.endnotes .empty { text-align: center; color: var(--text-faded); font-style: italic; letter-spacing: 0.1em; padding: 20px 0; }

/* 载入/错误态 */
.state { text-align: center; color: var(--text-faded); padding: 100px 0; letter-spacing: 0.12em; font-style: italic; }

/* ── 段评（inline annotation）────────────────────── */
.note-hl {
  background: rgba(184, 146, 106, 0.16);
  border-bottom: 1px solid var(--accent-warm);
  cursor: pointer;
  transition: background-color 0.3s var(--ease);
}
.note-hl:hover { background: rgba(184, 146, 106, 0.30); }

.note-ui { position: fixed; z-index: 1000; font-family: var(--serif-cn); }

#pv-bubble {
  background: var(--bg-card); color: var(--accent-warm);
  border: 1px solid var(--accent-dim); padding: 5px 14px;
  font-family: var(--serif-cn); font-size: 0.85rem; letter-spacing: 0.12em;
  cursor: pointer; box-shadow: 0 6px 18px -8px var(--shadow-warm);
}
#pv-bubble:hover { background: var(--bg-secondary); color: var(--text-primary); }

#pv-editor {
  background: var(--bg-secondary); border: 1px solid var(--border-subtle);
  padding: 14px; width: 290px; box-shadow: 0 16px 40px -16px var(--shadow-warm);
}
#pv-editor textarea {
  width: 100%; height: 72px; resize: vertical;
  background: var(--bg-primary); color: var(--text-primary);
  border: 1px solid var(--border-subtle); padding: 9px;
  font-family: var(--serif-cn); font-size: 0.95rem; line-height: 1.7;
}
#pv-editor textarea:focus { outline: none; border-color: var(--accent-dim); }
#pv-editor .row { display: flex; justify-content: flex-end; gap: 8px; margin-top: 10px; }
#pv-editor button {
  background: none; border: 1px solid var(--accent-dim); color: var(--text-secondary);
  padding: 4px 16px; cursor: pointer; font-family: var(--serif-cn); letter-spacing: 0.1em;
  transition: color 0.3s var(--ease), border-color 0.3s var(--ease);
}
#pv-editor button.save { color: var(--accent-warm); border-color: var(--accent-warm); }
#pv-editor button:hover { color: var(--text-primary); }

#pv-pop {
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  padding: 12px 16px; width: 290px; max-height: 60vh; overflow-y: auto;
  box-shadow: 0 16px 40px -16px var(--shadow-warm);
}
#pv-pop .floor { padding: 8px 0; border-bottom: 1px solid var(--border-subtle); }
#pv-pop .floor:last-child { border-bottom: none; }
#pv-pop .c { padding: 4px 0; }
#pv-pop .c.is-reply { margin: 6px 0 0 18px; padding-left: 12px; border-left: 1px solid var(--border-subtle); }
#pv-pop .reply-btn {
  background: none; border: none; color: var(--text-secondary); cursor: pointer;
  font-family: var(--serif-cn); font-size: 0.75rem; letter-spacing: 0.08em; margin-left: 10px; padding: 0;
}
#pv-pop .reply-btn:hover { color: var(--accent-warm); }
#pv-pop .reply-box { margin-top: 12px; }
#pv-pop .reply-box textarea {
  width: 100%; height: 56px; resize: vertical;
  background: var(--bg-primary); color: var(--text-primary);
  border: 1px solid var(--border-subtle); padding: 8px;
  font-family: var(--serif-cn); font-size: 0.92rem; line-height: 1.65;
}
#pv-pop .reply-box textarea:focus { outline: none; border-color: var(--accent-dim); }
#pv-pop .reply-box .row { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
#pv-pop .reply-box button {
  background: none; border: 1px solid var(--accent-dim); color: var(--text-secondary);
  padding: 3px 14px; cursor: pointer; font-family: var(--serif-cn); letter-spacing: 0.1em;
}
#pv-pop .reply-box button.save { color: var(--accent-warm); border-color: var(--accent-warm); }
#pv-pop .reply-box button:hover { color: var(--text-primary); }
#pv-pop .who { font-family: var(--serif-display); font-size: 1rem; letter-spacing: 0.08em; }
#pv-pop .who.lumen { color: var(--accent-warm); }
#pv-pop .who.azusa { color: var(--azusa-tint); }
#pv-pop .when { color: var(--text-faded); font-size: 0.72rem; margin-left: 10px; font-variant-numeric: tabular-nums; }
#pv-pop .body { color: var(--text-primary); font-size: 0.95rem; line-height: 1.75; margin-top: 5px; }

#pv-identity {
  position: fixed; right: 18px; bottom: 18px; z-index: 1000;
  background: var(--bg-card); border: 1px solid var(--border-subtle);
  padding: 7px 14px; font-family: var(--serif-cn); font-size: 0.8rem;
  color: var(--text-secondary); letter-spacing: 0.08em; cursor: pointer;
}
#pv-identity b { color: var(--accent-warm); font-style: normal; }