/* ============================================================
   Memorial 阅读站 · 设计系统
   1. tokens / 主题   2. 基础   3. 组件   4. 书架
   5. 阅读器          6. 表单页 7. 管理页 8. 响应式
   ============================================================ */

/* ---------- 1. tokens ---------- */
:root {
  --fs: 19px;
  --lh: 1.95;
  --measure: 34em;
  --indent: 2em;
  --para-gap: 0.95em;
  --tracking: 0.012em;

  --radius-s: 8px;
  --radius-m: 14px;
  --radius-l: 22px;

  --shadow-s: 0 1px 2px rgba(40, 32, 22, .05);
  --shadow-m: 0 6px 20px -8px rgba(40, 32, 22, .18);
  --shadow-l: 0 18px 48px -22px rgba(40, 32, 22, .3);

  --ease: cubic-bezier(.22, .61, .36, 1);
  --t-fast: .16s var(--ease);
  --t-mid: .28s var(--ease);

  --serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", "SimSun", Georgia, serif;
  --kai: "Kaiti SC", "STKaiti", "KaiTi", "Noto Serif CJK SC", serif;
  --hei: -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", sans-serif;
  --sans: var(--hei);
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --font-body: var(--serif);
}

/* 日间 · 纸 */
:root, [data-theme="day"] {
  --bg: #FAF8F3;
  --bg-2: #F2EEE5;
  --fg: #2B2620;
  --fg-soft: #4A4238;
  --sub: #8B8377;
  --line: #E6E0D4;
  --line-strong: #D6CEBE;
  --card: #FFFDF9;
  --accent: #8A6544;
  --accent-soft: rgba(138, 101, 68, .1);
  color-scheme: light;
}

/* 羊皮纸 */
[data-theme="sepia"] {
  --bg: #F4EBDC;
  --bg-2: #EDE2CE;
  --fg: #3B3025;
  --fg-soft: #55483A;
  --sub: #8C7A63;
  --line: #DFD0B8;
  --line-strong: #CDBA9C;
  --card: #FBF4E7;
  --accent: #9A6B3F;
  --accent-soft: rgba(154, 107, 63, .12);
  color-scheme: light;
}

/* 夜间 */
[data-theme="night"] {
  --bg: #16151A;
  --bg-2: #1C1B21;
  --fg: #C9C4BC;
  --fg-soft: #ADA79E;
  --sub: #7C7770;
  --line: #2B2A31;
  --line-strong: #3A3841;
  --card: #1E1D23;
  --accent: #C8A165;
  --accent-soft: rgba(200, 161, 101, .13);
  color-scheme: dark;
}

/* 护眼绿 */
[data-theme="green"] {
  --bg: #E9F0E4;
  --bg-2: #DFE9D9;
  --fg: #2A3628;
  --fg-soft: #41503D;
  --sub: #74856C;
  --line: #D3E0CB;
  --line-strong: #BECFB4;
  --card: #F2F7EE;
  --accent: #5C7A4E;
  --accent-soft: rgba(92, 122, 78, .12);
  color-scheme: light;
}

/* 纯黑 */
[data-theme="oled"] {
  --bg: #000;
  --bg-2: #08080A;
  --fg: #C6C2BB;
  --fg-soft: #A8A49D;
  --sub: #77736D;
  --line: #1B1B1E;
  --line-strong: #2A2A2E;
  --card: #0B0B0D;
  --accent: #D0A96B;
  --accent-soft: rgba(208, 169, 107, .12);
  color-scheme: dark;
}

/* ---------- 2. 基础 ---------- */
*, *::before, *::after { box-sizing: border-box; }

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

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background var(--t-mid), color var(--t-mid);
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; font-size: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { max-width: 100%; }
input, textarea, select { font-family: inherit; }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
::selection { background: var(--accent-soft); }
.dim { color: var(--sub); }

/* ---------- 3. 组件 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 17px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: transparent;
  color: var(--fg-soft);
  font-size: 13px;
  line-height: 1.2;
  white-space: nowrap;
  transition: border-color var(--t-fast), color var(--t-fast), background var(--t-fast), transform var(--t-fast);
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn:active { transform: translateY(1px); }

.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { color: #fff; filter: brightness(1.06); }

.btn-danger {
  background: transparent;
  border-color: color-mix(in srgb, #aa2d2d 45%, var(--line));
  color: color-mix(in srgb, #aa2d2d 80%, var(--fg));
}
.btn-danger:hover { background: #aa2d2d; border-color: #aa2d2d; color: #fff; }

.btn-wide { width: 100%; padding: 13px; font-size: 15px; border-radius: var(--radius-m); }
.btn-mini { padding: 5px 12px; font-size: 12.5px; }
.btn-ghost { border-color: transparent; color: var(--sub); }
.btn-ghost:hover { border-color: var(--line-strong); color: var(--fg); }

.key-input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-s);
  background: var(--card);
  color: var(--fg);
  font-size: 14px;
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.key-input::placeholder { color: var(--sub); opacity: .7; }
.key-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.key-input.tiny { width: 120px; padding: 6px 10px; font-size: 12.5px; }

.msg {
  border: 1px solid var(--line-strong);
  border-left-width: 3px;
  border-radius: var(--radius-s);
  padding: 11px 14px;
  font-size: 13px;
  line-height: 1.7;
  margin: 0 0 18px;
  background: var(--card);
}
.msg p { margin: 0 0 6px; font-weight: 500; }
.msg ul { margin: 0; padding-left: 18px; }
.msg-err { border-left-color: #aa2d2d; color: color-mix(in srgb, #aa2d2d 75%, var(--fg)); }
.msg-ok { border-left-color: var(--accent); color: var(--accent); }
.msg-warn { border-left-color: #b8862f; }
.msg-upd { border-left-color: var(--accent); }
.msg-note { font-size: 12.5px; color: var(--sub); }

.empty { text-align: center; padding: 90px 24px; }
.empty-title { font-family: var(--serif); font-size: 21px; margin: 0 0 10px; }
.empty-desc { color: var(--sub); font-size: 13.5px; margin: 0 0 26px; }

/* ---------- 4. 书架 ---------- */
.shelf-page { display: flex; flex-direction: column; }

.shelf-head {
  padding: 54px 40px 8px;
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
}
.shelf-head-inner { display: flex; align-items: flex-end; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.shelf-head h1 {
  font-family: var(--serif);
  font-size: 34px;
  font-weight: 400;
  letter-spacing: .06em;
  margin: 0;
  line-height: 1.2;
}
.shelf-head .sub { margin: 8px 0 0; font-size: 12.5px; color: var(--sub); letter-spacing: .04em; }

.shelf-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.who-btn { font-size: 12.5px; }

.shelf-search { max-width: 1180px; width: 100%; margin: 22px auto 0; padding: 0 40px; }
.shelf-search input {
  width: 100%;
  padding: 11px 16px 11px 40px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238B8377' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.5-3.5'/%3E%3C/svg%3E") no-repeat 15px center;
  color: var(--fg);
  font-size: 13.5px;
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.shelf-search input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.shelf-search input::placeholder { color: var(--sub); opacity: .75; }

.shelf-main {
  max-width: 1180px;
  width: 100%;
  margin: 0 auto;
  padding: 26px 40px 100px;
  flex: 1;
}

/* 继续阅读 */
.cont-card {
  display: flex;
  gap: 22px;
  align-items: center;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: linear-gradient(180deg, color-mix(in srgb, var(--card) 92%, var(--accent-soft)), var(--card));
  box-shadow: var(--shadow-s);
  margin-bottom: 38px;
  transition: box-shadow var(--t-mid), transform var(--t-mid);
}
.cont-card:hover { box-shadow: var(--shadow-m); transform: translateY(-1px); }

.cont-cover {
  flex: none;
  width: 86px;
  aspect-ratio: 3 / 4.2;
  border-radius: 3px 7px 7px 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 8px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-m);
}
.cont-cover::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 7px;
  background: linear-gradient(90deg, rgba(0, 0, 0, .28), rgba(0, 0, 0, .04));
}
.cont-cover span {
  font-family: var(--serif);
  font-size: 13px;
  line-height: 1.45;
  letter-spacing: .04em;
  text-align: center;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cont-info { flex: 1; min-width: 0; }
.cont-kicker { font-size: 10.5px; letter-spacing: .18em; color: var(--sub); text-transform: uppercase; }
.cont-title {
  font-family: var(--serif);
  font-size: 20px;
  margin: 6px 0 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.cont-chap { font-size: 13px; color: var(--sub); margin: 0 0 14px; }
.cont-chap em { font-style: normal; margin-left: 8px; opacity: .8; }
.cont-actions { display: flex; gap: 10px; align-items: center; }

.ring { flex: none; width: 56px; height: 56px; position: relative; }
.ring svg { transform: rotate(-90deg); display: block; }
.ring .ring-bg { stroke: var(--line); }
.ring .ring-fg { stroke: var(--accent); transition: stroke-dashoffset var(--t-mid); }
.ring b {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--sub);
}

/* 分区标题 */
.sec-head { display: flex; align-items: baseline; gap: 12px; margin: 0 0 18px; }
.sec-head h2 {
  font-family: var(--serif);
  font-size: 16px;
  font-weight: 400;
  letter-spacing: .1em;
  margin: 0;
  color: var(--fg-soft);
}
.sec-head .sec-line { flex: 1; height: 1px; background: var(--line); }
.sec-head .sec-count { font-size: 12px; color: var(--sub); font-variant-numeric: tabular-nums; }

/* 网格与封面 */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(152px, 1fr));
  gap: 34px 26px;
}
.card-wrap { position: relative; }
.card { display: block; }

.cover {
  position: relative;
  aspect-ratio: 3 / 4.3;
  border-radius: 3px 8px 8px 3px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 16px 20px 22px;
  box-shadow: var(--shadow-m);
  transition: transform var(--t-mid), box-shadow var(--t-mid);
}
.cover::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  background: linear-gradient(90deg, rgba(0, 0, 0, .3), rgba(0, 0, 0, .05) 70%, transparent);
}
.cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .05) 0 1px, transparent 1px 3px),
    radial-gradient(120% 80% at 80% 0%, rgba(255, 255, 255, .16), transparent 60%);
  pointer-events: none;
}
.card:hover .cover { transform: translateY(-4px); box-shadow: var(--shadow-l); }

.cover-title {
  font-family: var(--serif);
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: .1em;
  text-align: center;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  position: relative;
  z-index: 1;
}
.cover-author {
  position: absolute;
  left: 0; right: 0; bottom: 14px;
  text-align: center;
  font-size: 10.5px;
  letter-spacing: .14em;
  opacity: .72;
  z-index: 1;
}
.fmt-badge {
  position: absolute;
  top: 8px; right: 8px;
  font-size: 9.5px;
  letter-spacing: .1em;
  padding: 2px 6px;
  border-radius: 3px;
  border: 1px solid currentColor;
  opacity: .5;
  z-index: 1;
}

.card-body { padding: 12px 2px 0; }
.card-title {
  font-family: var(--serif);
  font-size: 14px;
  margin: 0 0 5px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.card-meta {
  margin: 0;
  font-size: 11.5px;
  color: var(--sub);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.card-date {
  margin: 5px 0 0;
  font-size: 10.5px;
  color: var(--sub);
  opacity: .6;
  font-variant-numeric: tabular-nums;
}
.resume {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10.5px;
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  border-radius: 999px;
  padding: 1px 7px;
  white-space: nowrap;
}

/* 卡片浮层按钮 */
.exp-btn, .del-btn {
  position: absolute;
  top: 6px;
  height: 24px;
  border-radius: 999px;
  background: rgba(20, 18, 15, .5);
  color: #fff;
  font-size: 11px;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
  z-index: 5;
  opacity: 0;
  transition: opacity var(--t-fast), background var(--t-fast);
}
.exp-btn { right: 34px; padding: 0 8px; }
.del-btn { right: 6px; width: 24px; font-size: 15px; }
.del-form { position: absolute; top: 0; right: 0; z-index: 5; }
.card-wrap:hover .exp-btn, .card-wrap:hover .del-btn { opacity: 1; }
.exp-btn:hover { background: color-mix(in srgb, var(--accent) 92%, #000); }
.del-btn:hover { background: rgba(170, 45, 45, .92); }

/* ---------- 5. 阅读器 ---------- */
.reader { min-height: 100vh; display: flex; flex-direction: column; }

.r-head {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 18px;
  padding-top: max(11px, env(safe-area-inset-top));
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(180%) blur(18px);
  -webkit-backdrop-filter: saturate(180%) blur(18px);
  border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
}
.r-back {
  font-size: 19px;
  line-height: 1;
  padding: 4px 8px;
  color: var(--sub);
  border-radius: 50%;
  transition: color var(--t-fast), background var(--t-fast);
}
.r-back:hover { color: var(--accent); background: var(--accent-soft); }

.r-book {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 0;
  border: 0;
  background: none;
  text-align: left;
  font-family: inherit;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--sub);
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}
.r-book .r-bn { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.r-book .r-cn { flex: none; font-variant-numeric: tabular-nums; letter-spacing: .03em; color: var(--accent); }

.r-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 12.5px;
  padding: 6px 11px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--sub);
  transition: var(--t-fast);
  flex: none;
}
.r-icon:hover, .r-icon.on { border-color: var(--accent); color: var(--accent); }

.r-progress {
  position: fixed;
  left: 0; right: 0; top: 0;
  height: 2px;
  z-index: 40;
  background: transparent;
  pointer-events: none;
}
.r-progress i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent);
  opacity: .5;
  transition: width .1s linear;
}

.r-main { flex: 1; overflow-x: hidden; }
.r-article { max-width: calc(var(--measure) + 6em); margin: 0 auto; padding: 54px 28px 120px; }
.r-chapter-no {
  font-size: 11.5px;
  letter-spacing: .18em;
  color: var(--sub);
  text-align: center;
  margin: 0 0 14px;
  text-indent: 0;
}
.r-vol { color: var(--accent); }
.r-title {
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: .04em;
  text-align: center;
  margin: 0 0 46px;
  text-indent: 0;
}

.r-text {
  font-family: var(--font-body);
  font-size: var(--fs);
  line-height: var(--lh);
  letter-spacing: var(--tracking);
  color: var(--fg);
  word-break: break-word;
}
.r-text p {
  margin: 0 0 var(--para-gap);
  text-indent: var(--indent);
  text-align: justify;
  hanging-punctuation: allow-end;
}
.r-text p:last-child { margin-bottom: 0; }

.r-text h1, .r-text h2, .r-text h3,
.r-text h4, .r-text h5, .r-text h6 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.5;
  margin: 1.9em 0 .9em;
  text-indent: 0;
  letter-spacing: .04em;
}
.r-text h1 { font-size: 1.3em; }
.r-text h2 { font-size: 1.18em; }
.r-text h3 { font-size: 1.08em; }
.r-text h4, .r-text h5, .r-text h6 { font-size: 1em; color: var(--sub); }

.r-text blockquote {
  margin: 1.4em 0;
  padding: 2px 0 2px 18px;
  border-left: 2px solid var(--line-strong);
  color: var(--sub);
  text-indent: 0;
}
.r-text blockquote p { text-indent: 0; }

.r-text ul, .r-text ol { margin: 1em 0; padding-left: 1.5em; }
.r-text li { margin: .35em 0; text-indent: 0; }
.r-text li > p { text-indent: 0; margin: 0; }

.r-text hr { border: 0; height: 1px; background: var(--line); margin: 2.2em auto; width: 46%; }

.r-text code {
  font-family: var(--mono);
  font-size: .86em;
  background: var(--bg-2);
  padding: 1px 5px;
  border-radius: 4px;
}
.r-text pre {
  background: var(--bg-2);
  padding: 14px 16px;
  border-radius: var(--radius-s);
  overflow: auto;
  text-indent: 0;
  margin: 1.4em 0;
}
.r-text pre code { background: none; padding: 0; font-size: .84em; }

.r-text img { max-width: 100%; height: auto; display: block; margin: 1.8em auto; border-radius: 6px; }
.r-text p.ill { text-indent: 0; text-align: center; margin: 1.5em 0; }
.r-text p.ill img { margin: 0 auto; box-shadow: var(--shadow-m); }

.r-text table { width: 100%; border-collapse: collapse; font-size: .9em; margin: 1.4em 0; text-indent: 0; }
.r-text th, .r-text td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; }
.r-text th { background: color-mix(in srgb, var(--fg) 4%, transparent); font-weight: 500; }

/* 章末导航 */
.r-pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 68px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
  text-indent: 0;
}
.r-pager a, .r-pager span {
  font-size: 13px;
  color: var(--sub);
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: var(--t-fast);
}
.r-pager a:hover { border-color: var(--accent); color: var(--accent); }
.r-pager .pager-toc { border-color: transparent; }
.r-pager .dim { border-color: transparent; opacity: .55; }

/* 目录抽屉 */
.toc-drawer {
  position: fixed;
  top: 0; bottom: 0; left: 0;
  width: min(84vw, 360px);
  background: var(--bg);
  border-right: 1px solid var(--line);
  transform: translateX(-102%);
  transition: transform var(--t-mid);
  z-index: 60;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-l);
}
.toc-drawer.open { transform: none; }
.toc-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 18px 12px;
  padding-top: max(18px, env(safe-area-inset-top));
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--sub);
}
.toc-head button { font-size: 20px; color: var(--sub); line-height: 1; padding: 2px 4px; }
.toc-search { padding: 12px 16px 6px; }
.toc-search input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--fg);
  font-size: 12.5px;
  outline: none;
}
.toc-search input:focus { border-color: var(--accent); }
.toc-list { flex: 1; overflow-y: auto; padding: 6px 8px 40px; -webkit-overflow-scrolling: touch; }
.toc-group {
  font-size: 10.5px;
  letter-spacing: .14em;
  color: var(--sub);
  padding: 16px 12px 6px;
  opacity: .75;
}
.toc-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-s);
  font-size: 13px;
  color: var(--fg-soft);
  transition: background var(--t-fast);
}
.toc-item:hover { background: var(--bg-2); }
.toc-item.on { background: var(--accent-soft); color: var(--accent); }
.toc-item .n {
  flex: none;
  font-size: 11px;
  color: var(--sub);
  font-variant-numeric: tabular-nums;
  min-width: 2.4em;
}
.toc-item .t { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.toc-loading { color: var(--sub); font-size: 12.5px; padding: 20px 12px; }

.mask {
  position: fixed;
  inset: 0;
  background: rgba(20, 16, 12, .42);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-mid);
  z-index: 55;
  backdrop-filter: blur(2px);
}
.mask.on { opacity: 1; pointer-events: auto; }

/* 设置面板 */
.set-panel {
  position: fixed;
  right: 16px;
  bottom: 16px;
  bottom: max(16px, env(safe-area-inset-bottom));
  width: 300px;
  max-width: calc(100vw - 32px);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  box-shadow: var(--shadow-l);
  padding: 16px 18px 18px;
  z-index: 60;
  transform: translateY(14px) scale(.98);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-mid), transform var(--t-mid);
}
.set-panel.open { opacity: 1; transform: none; pointer-events: auto; }

.set-row { display: flex; align-items: center; gap: 12px; padding: 9px 0; }
.set-row + .set-row { border-top: 1px solid var(--line); }
.set-label { flex: none; width: 46px; font-size: 12px; color: var(--sub); letter-spacing: .06em; }
.set-ctrl { display: flex; align-items: center; gap: 6px; flex: 1; }
.set-ctrl button {
  flex: none;
  min-width: 34px;
  padding: 5px 9px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 12px;
  color: var(--fg-soft);
  transition: var(--t-fast);
}
.set-ctrl button:hover { border-color: var(--accent); color: var(--accent); }
.set-ctrl span { flex: 1; text-align: center; font-size: 12px; color: var(--sub); font-variant-numeric: tabular-nums; }

.seg { display: flex; flex: 1; border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }
.seg button { flex: 1; padding: 6px 0; font-size: 12px; color: var(--sub); border: 0; border-radius: 0; transition: var(--t-fast); }
.seg button + button { border-left: 1px solid var(--line); }
.seg button.on { background: var(--accent-soft); color: var(--accent); }

.themes { display: flex; gap: 9px; flex: 1; }
.sw {
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  position: relative;
  transition: transform var(--t-fast);
}
.sw:hover { transform: scale(1.08); }
.sw.on { box-shadow: 0 0 0 2px var(--card), 0 0 0 3px var(--accent); }
.sw[data-theme="day"] { background: #FAF8F3; }
.sw[data-theme="sepia"] { background: #F4EBDC; }
.sw[data-theme="night"] { background: #16151A; }
.sw[data-theme="green"] { background: #E9F0E4; }
.sw[data-theme="oled"] { background: #000; }

/* ---------- 6. 表单 / 内容页 ---------- */
.edit-main { max-width: 780px; margin: 0 auto; padding: 46px 26px 100px; }
.edit-main-narrow { max-width: 460px; padding-top: 70px; }

.up-back { font-size: 12.5px; color: var(--sub); letter-spacing: .04em; }
.up-back:hover { color: var(--accent); }
.edit-main h1 {
  font-family: var(--serif);
  font-size: 27px;
  font-weight: 400;
  letter-spacing: .05em;
  margin: 22px 0 14px;
}
.up-desc { font-size: 13.5px; color: var(--sub); line-height: 1.8; margin: 0 0 28px; }
.up-desc b { color: var(--fg); font-weight: 500; }
.up-desc code {
  font-family: var(--mono);
  font-size: 12px;
  background: var(--bg-2);
  padding: 1px 5px;
  border-radius: 4px;
}
.up-tip { display: inline-block; margin-top: 8px; font-size: 12px; opacity: .8; }
.up-tip a { color: var(--accent); border-bottom: 1px solid color-mix(in srgb, var(--accent) 40%, transparent); }

.up-main { max-width: 580px; margin: 0 auto; padding: 54px 26px 100px; }
.up-form { display: flex; flex-direction: column; gap: 16px; }

.edit-lock-form { display: flex; flex-direction: column; gap: 12px; }
.edit-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.edit-book { font-size: 12px; color: var(--sub); }
.edit-form { display: flex; flex-direction: column; gap: 10px; }
.edit-label { font-size: 12.5px; color: var(--sub); letter-spacing: .06em; margin-top: 8px; }
.edit-fmt {
  font-size: 10.5px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 1px 7px;
  margin-left: 8px;
  opacity: .8;
}
.edit-area {
  width: 100%;
  min-height: 56vh;
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--card);
  color: var(--fg);
  font-family: var(--serif);
  font-size: 15px;
  line-height: 1.9;
  resize: vertical;
  outline: none;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
}
.edit-area:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.edit-area.dropping {
  border-color: var(--accent);
  border-style: dashed;
  background: color-mix(in srgb, var(--accent) 6%, var(--card));
}
.edit-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 6px; flex-wrap: wrap; }
.edit-count { font-size: 12px; color: var(--sub); font-variant-numeric: tabular-nums; }
.edit-actions { display: flex; gap: 10px; }
.mode-hint { font-size: 12px; color: var(--sub); opacity: .8; margin: 4px 0 0; }
.mode-hint-warn { color: #b8862f; opacity: 1; }

.edit-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin: 0 0 8px; }
.tool-btn {
  padding: 6px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--card);
  color: var(--fg-soft);
  font-size: 12.5px;
  transition: var(--t-fast);
}
.tool-btn:hover { border-color: var(--accent); color: var(--accent); }
.tool-hint { font-size: 12px; color: var(--sub); opacity: .8; }

/* 上传页 */
.mode-tabs { display: flex; gap: 6px; margin: 0 0 20px; }
.mode-tab {
  flex: 1;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  font-size: 13px;
  color: var(--sub);
  text-align: center;
  transition: var(--t-fast);
}
.mode-tab.on { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.drop {
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-m);
  padding: 34px 20px;
  text-align: center;
  color: var(--sub);
  transition: var(--t-fast);
  cursor: pointer;
}
.drop:hover, .drop.over { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.drop-icon { font-size: 24px; display: block; margin-bottom: 8px; opacity: .7; }
.drop-text { font-size: 13px; }
.book-select {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-s);
  background: var(--card);
  color: var(--fg);
  font-size: 14px;
  outline: none;
}
.merge-opt, .merge-title-wrap { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--sub); }
.merge-hint { font-size: 12px; color: var(--sub); opacity: .8; }
.overwrite-pane { display: flex; flex-direction: column; gap: 14px; }

/* ---------- 7. 管理页 ---------- */
.adm-h2 {
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 400;
  color: var(--sub);
  margin: 34px 0 12px;
  letter-spacing: .1em;
}
.adm-form { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-bottom: 8px; }
.adm-form .key-input { flex: 1 1 150px; min-width: 0; }
.adm-form select.key-input { flex: 0 0 110px; }

.adm-list { display: flex; flex-direction: column; gap: 10px; }
.adm-row {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 13px 15px;
  background: var(--card);
}
.adm-who { display: flex; align-items: center; gap: 8px; }
.adm-name { font-family: var(--serif); font-size: 15px; }
.adm-me { font-style: normal; font-size: 12px; color: var(--sub); }
.adm-tag {
  font-size: 10.5px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--sub);
  letter-spacing: .04em;
}
.adm-tag.is-admin { border-color: var(--accent); color: var(--accent); }
.adm-meta { font-size: 11.5px; color: var(--sub); margin-top: 6px; opacity: .85; }
.adm-ops { display: flex; gap: 8px; align-items: center; margin-top: 10px; flex-wrap: wrap; }
.adm-inline { display: flex; gap: 6px; align-items: center; }

/* 看板 */
.bd-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.bd-nav { display: flex; gap: 8px; }
.bd-sum { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin: 22px 0 26px; }
.bd-cell {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: 15px 12px;
  text-align: center;
  background: var(--card);
}
.bd-cell b {
  display: block;
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}
.bd-cell span { font-size: 11px; color: var(--sub); letter-spacing: .04em; }

.bd-list { display: flex; flex-direction: column; gap: 14px; }
.bd-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  padding: 15px 17px;
  background: var(--card);
}
.bd-user { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.bd-seen { margin-left: auto; font-size: 11px; color: var(--sub); opacity: .8; }
.bd-books { margin-top: 12px; display: flex; flex-direction: column; gap: 2px; }
.bd-row {
  display: grid;
  grid-template-columns: minmax(90px, 1.1fr) minmax(120px, 1.6fr) 90px 42px 92px;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-s);
  font-size: 12.5px;
  color: var(--fg);
  transition: background var(--t-fast);
}
.bd-row:hover { background: var(--bg-2); }
.bd-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bd-chap { color: var(--sub); font-variant-numeric: tabular-nums; }
.bd-chap em {
  font-style: normal;
  margin-left: 6px;
  opacity: .7;
  display: inline-block;
  max-width: 12em;
  overflow: hidden;
  text-overflow: ellipsis;
  vertical-align: bottom;
  white-space: nowrap;
}
.bd-bar { display: block; height: 3px; border-radius: 999px; background: color-mix(in srgb, var(--fg) 10%, transparent); overflow: hidden; }
.bd-bar i { display: block; height: 100%; background: var(--accent); opacity: .7; border-radius: 999px; }
.bd-pct { text-align: right; color: var(--sub); font-variant-numeric: tabular-nums; }
.bd-time { text-align: right; color: var(--sub); opacity: .7; font-size: 11px; }
.bd-empty { font-size: 12.5px; color: var(--sub); margin: 12px 0 2px; opacity: .75; }

/* 搜索结果 */
.sr-list { display: flex; flex-direction: column; gap: 8px; }
.sr-item {
  display: block;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--card);
  transition: border-color var(--t-fast), transform var(--t-fast);
}
.sr-item:hover { border-color: var(--accent); transform: translateX(2px); }
.sr-book { font-size: 11px; color: var(--accent); letter-spacing: .06em; display: block; margin-bottom: 4px; }
.sr-title { font-family: var(--serif); font-size: 14.5px; display: block; margin-bottom: 5px; }
.sr-snip { font-size: 12.5px; color: var(--sub); line-height: 1.7; display: block; overflow: hidden; }

/* 书签 */
.bm-list { display: flex; flex-direction: column; gap: 16px; }
.bm-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-l);
  background: var(--card);
  overflow: hidden;
}
.bm-book {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  padding: 14px 17px;
  border-bottom: 1px solid var(--line);
  font-family: var(--serif);
  font-size: 15px;
}
.bm-book a:hover { color: var(--accent); }
.bm-count { font-family: var(--sans); font-size: 11px; color: var(--sub); }
.bm-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 10px 0 17px;
}
.bm-row + .bm-row { border-top: 1px solid color-mix(in srgb, var(--line) 60%, transparent); }
.bm-main {
  flex: 1;
  min-width: 0;
  padding: 11px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.bm-chap { font-size: 13.5px; color: var(--fg); }
.bm-chap em {
  font-style: normal;
  margin-left: 8px;
  color: var(--sub);
  font-size: 12.5px;
}
.bm-meta { font-size: 11px; color: var(--sub); opacity: .8; font-variant-numeric: tabular-nums; }

/* 轻提示 */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  bottom: max(34px, calc(env(safe-area-inset-bottom) + 20px));
  transform: translate(-50%, 12px);
  background: color-mix(in srgb, var(--fg) 92%, transparent);
  color: var(--bg);
  font-size: 13px;
  padding: 10px 18px;
  border-radius: 999px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-mid), transform var(--t-mid);
  z-index: 90;
  max-width: 80vw;
  text-align: center;
}
.toast.on { opacity: .96; transform: translate(-50%, 0); }

/* 章节管理 */
.ch-list { display: flex; flex-direction: column; gap: 6px; }
.ch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius-s);
  background: var(--card);
}
.ch-no {
  flex: none;
  width: 2.4em;
  text-align: right;
  font-size: 11.5px;
  color: var(--sub);
  font-variant-numeric: tabular-nums;
}
.ch-title-form { flex: 1; min-width: 0; display: flex; gap: 6px; }
.ch-title { padding: 6px 10px; font-size: 13px; }
.ch-meta { flex: none; font-size: 11px; color: var(--sub); font-variant-numeric: tabular-nums; }
.ch-ops { flex: none; display: flex; gap: 4px; }
.ch-add { display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.ch-add .key-input { max-width: 420px; }

/* 插图库 */
.img-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
}
.img-cell {
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  background: var(--card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.img-thumb {
  display: block;
  aspect-ratio: 4 / 3;
  background: var(--bg-2);
  overflow: hidden;
}
.img-thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }
.img-info {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px 4px;
  font-size: 11px;
  color: var(--sub);
}
.img-used.is-used { color: var(--accent); }
.img-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 0 10px 8px;
  font-size: 10.5px;
  color: var(--sub);
  opacity: .85;
}
.img-foot .btn[disabled] { opacity: .35; cursor: not-allowed; }

.resume.private {
  color: #b8862f;
  border-color: color-mix(in srgb, #b8862f 35%, transparent);
}

/* 书的可见性开关 */
.vis-form {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 14px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-m);
  margin: 0 0 18px;
  background: var(--card);
}
.vis-check {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--fg-soft);
  cursor: pointer;
}
.vis-check input { width: 16px; height: 16px; accent-color: var(--accent); }

/* ---------- 8. 响应式 ---------- */
@media (max-width: 860px) {
  .shelf-head { padding: 38px 22px 6px; }
  .shelf-search { padding: 0 22px; }
  .shelf-main { padding: 22px 22px 90px; }
  .shelf-head h1 { font-size: 27px; }
  .grid { grid-template-columns: repeat(auto-fill, minmax(128px, 1fr)); gap: 26px 18px; }
  .cover { padding: 16px 12px 18px 18px; }
  .cover-title { font-size: 15px; }
  .cont-card { gap: 16px; padding: 16px; }
  .cont-cover { width: 68px; }
  .cont-title { font-size: 17px; }
  .r-article { padding: 36px 20px 110px; }
  .r-title { font-size: 21px; margin-bottom: 34px; }
  .set-panel { right: 12px; left: 12px; width: auto; bottom: 12px; bottom: max(12px, env(safe-area-inset-bottom)); }
  .bd-sum { grid-template-columns: repeat(2, 1fr); }
  .bd-row {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "title pct"
      "chap chap"
      "bar time";
    row-gap: 6px;
  }
  .bd-title { grid-area: title; }
  .bd-pct { grid-area: pct; }
  .bd-chap { grid-area: chap; }
  .bd-bar { grid-area: bar; }
  .bd-time { grid-area: time; }
  .edit-main { padding: 32px 20px 90px; }
  .edit-main-narrow { padding-top: 46px; }
}

@media (max-width: 520px) {
  :root { --fs: 18px; --lh: 1.9; }
  .r-book .r-bn { display: none; }
  .r-book { gap: 0; }
  .shelf-actions { width: 100%; justify-content: flex-start; }
  .adm-form .key-input { flex: 1 1 100%; }
  .adm-form select.key-input { flex: 1 1 100%; }
}

@media (hover: none) {
  .exp-btn, .del-btn { opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}