/* ============ 古典小说文库 · 样式 ============ */
:root{
  --bg:#f6f1e7; --surface:#fffdf6; --surface2:#f1e9d8;
  --ink:#33302b; --ink2:#6b6257; --muted:#94897a;
  --accent:#a0341f; --accent-soft:#f3e3dc;
  --border:#e2d8c4; --shadow:0 1px 2px rgba(60,45,20,.06),0 8px 24px rgba(60,45,20,.08);
  --reader-bg:#f6f1e7;
  --font-ui:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --fs:19px; --lh:1.95; --ls:.05em; --colw:42em;
}
html[data-theme="night"]{
  --bg:#17181c; --surface:#1f2126; --surface2:#26282e;
  --ink:#c9c4b8; --ink2:#a39d90; --muted:#7c766b;
  --accent:#d08a5a; --accent-soft:#33281f;
  --border:#33353c; --shadow:0 1px 2px rgba(0,0,0,.4),0 8px 24px rgba(0,0,0,.35);
  --reader-bg:#17181c;
}
html[data-theme="green"]{
  --bg:#eef3ea; --surface:#f8faf4; --surface2:#e4ecdf;
  --ink:#2e3b30; --ink2:#5c6b5f; --muted:#84917f;
  --accent:#4a6b57; --accent-soft:#dfe9e0;
  --border:#d4dfcf; --shadow:0 1px 2px rgba(40,70,40,.08),0 8px 24px rgba(40,70,40,.08);
  --reader-bg:#eef3ea;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--ink);font-family:var(--font-ui);
  line-height:1.6;-webkit-font-smoothing:antialiased;min-height:100vh;
  transition:background .25s,color .25s;
}
a{color:var(--accent);text-decoration:none}
button{font-family:inherit;cursor:pointer;color:inherit;background:none;border:none}
input{font-family:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

#app{display:flex;flex-direction:column;min-height:100vh}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:50;display:flex;align-items:center;gap:16px;
  padding:10px 20px;background:color-mix(in srgb,var(--surface) 88%,transparent);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-seal{
  width:34px;height:34px;border-radius:8px;background:var(--accent);color:#fdf6e9;
  display:grid;place-items:center;font-family:var(--font-serif);font-size:19px;font-weight:700;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.12);
}
.brand-text{font-family:var(--font-serif);font-size:20px;font-weight:700;letter-spacing:.12em;color:var(--ink)}
.searchbox{position:relative;flex:1;max-width:560px;margin:0 auto}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:18px;height:18px;fill:var(--muted)}
#searchInput{
  width:100%;padding:9px 14px 9px 38px;border-radius:999px;border:1px solid var(--border);
  background:var(--surface);color:var(--ink);font-size:14.5px;transition:border-color .2s,box-shadow .2s;
}
#searchInput::placeholder{color:var(--muted)}
#searchInput:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
.search-drop{
  position:absolute;top:calc(100% + 8px);left:0;right:0;background:var(--surface);
  border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);
  max-height:420px;overflow:auto;z-index:60;
}
.search-drop .sd-group{padding:8px 6px 4px;font-size:12px;color:var(--muted);letter-spacing:.1em;padding-left:14px}
.search-drop .sd-item{
  display:block;width:100%;text-align:left;padding:9px 14px;font-size:14.5px;color:var(--ink);
  border-radius:8px;margin:1px 6px;
}
.search-drop .sd-item:hover{background:var(--surface2)}
.search-drop .sd-item .sd-name{font-family:var(--font-serif);font-size:15.5px}
.search-drop .sd-item .sd-sub{font-size:12.5px;color:var(--muted);margin-left:8px}
.search-drop .sd-item .sd-chapter{display:block;font-size:13px;color:var(--ink2);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search-drop .sd-empty{padding:18px;text-align:center;color:var(--muted);font-size:14px}
.top-actions{display:flex;align-items:center;gap:8px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--border);background:var(--surface);transition:background .2s;
}
.icon-btn:hover{background:var(--surface2)}
.icon-btn svg{width:19px;height:19px;fill:var(--ink)}
.btn{border-radius:999px;padding:8px 16px;font-size:14px;transition:background .2s;border:1px solid var(--border)}
.btn.ghost{background:var(--surface);color:var(--ink)}
.btn.ghost:hover{background:var(--surface2)}
.btn.primary{background:var(--accent);color:#fdf6e9;border-color:transparent}
.btn.primary:hover{filter:brightness(1.08)}

/* ---------- 首页 ---------- */
.hero{
  text-align:center;padding:56px 20px 36px;position:relative;
  background:
    radial-gradient(1200px 300px at 50% -80px, var(--accent-soft), transparent 70%);
}
.hero h1{
  font-family:var(--font-serif);font-size:clamp(34px,6vw,52px);font-weight:700;
  letter-spacing:.14em;color:var(--ink);
}
.hero .tagline{margin-top:12px;color:var(--ink2);font-size:clamp(14px,2vw,16.5px);letter-spacing:.22em}
.hero .stats{
  margin:26px auto 0;display:flex;justify-content:center;gap:0;flex-wrap:wrap;
  border:1px solid var(--border);border-radius:14px;background:color-mix(in srgb,var(--surface) 82%,transparent);
  max-width:720px;overflow:hidden;
}
.hero .stat{flex:1;min-width:110px;padding:16px 12px}
.hero .stat + .stat{border-left:1px solid var(--border)}
.hero .stat b{display:block;font-family:var(--font-serif);font-size:24px;color:var(--accent);font-weight:700}
.hero .stat span{font-size:12.5px;color:var(--muted);letter-spacing:.08em}
.cats{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;padding:26px 20px 6px;
}
.chip{
  padding:7px 16px;border-radius:999px;border:1px solid var(--border);background:var(--surface);
  font-size:14px;color:var(--ink2);transition:all .18s;
}
.chip:hover{border-color:var(--accent);color:var(--accent)}
.chip.active{background:var(--accent);color:#fdf6e9;border-color:var(--accent)}
.chip .cnt{opacity:.7;font-size:12px;margin-left:4px}
.continue-card{
  margin:22px auto 0;max-width:920px;padding:14px 18px;display:flex;align-items:center;gap:14px;
  background:var(--accent-soft);border:1px solid color-mix(in srgb,var(--accent) 30%,transparent);
  border-radius:14px;
}
.continue-card .cc-label{font-size:12.5px;color:var(--muted);letter-spacing:.1em;flex-shrink:0}
.continue-card .cc-body{flex:1;min-width:0}
.continue-card .cc-title{font-family:var(--font-serif);font-size:17px;color:var(--ink)}
.continue-card .cc-sub{font-size:13px;color:var(--ink2);margin-top:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.continue-card .cc-bar{height:4px;background:color-mix(in srgb,var(--accent) 20%,transparent);border-radius:2px;margin-top:8px;overflow:hidden}
.continue-card .cc-bar i{display:block;height:100%;background:var(--accent);border-radius:2px}
.shelf{padding:30px 20px 40px;max-width:1180px;margin:0 auto}
.shelf-head{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:16px}
.shelf-head h2{font-family:var(--font-serif);font-size:22px;letter-spacing:.1em;color:var(--ink)}
.shelf-head .shelf-meta{font-size:13px;color:var(--muted)}
.book-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px}
.book-card{
  position:relative;display:flex;flex-direction:column;gap:6px;padding:18px 18px 14px;
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  transition:transform .18s,box-shadow .18s,border-color .18s;overflow:hidden;
}
.book-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:color-mix(in srgb,var(--accent) 45%,var(--border))}
.book-card .bc-cat{
  position:absolute;top:0;right:0;font-size:11.5px;color:var(--accent);letter-spacing:.08em;
  background:var(--accent-soft);padding:4px 10px 4px 12px;border-bottom-left-radius:10px;
}
.book-card .bc-name{font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--ink);letter-spacing:.04em;padding-right:56px}
.book-card .bc-author{font-size:13px;color:var(--ink2)}
.book-card .bc-author .dyn{color:var(--muted);margin-left:6px}
.book-card .bc-meta{display:flex;gap:12px;font-size:12.5px;color:var(--muted);margin-top:2px}
.book-card .bc-meta b{color:var(--ink2);font-weight:600}
.shelf-empty{text-align:center;padding:60px 0;color:var(--muted)}
.shelf-empty button{margin-top:14px}

/* ---------- 阅读页 ---------- */
.reader{display:flex;flex-direction:column;min-height:calc(100vh - 61px)}
.reader-top{
  position:sticky;top:61px;z-index:40;display:flex;align-items:center;gap:10px;
  padding:8px 16px;background:color-mix(in srgb,var(--reader-bg) 90%,transparent);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--border);
}
.reader-top .rt-back{display:flex;align-items:center;gap:6px;font-size:14px;color:var(--ink2);padding:6px 10px;border-radius:8px}
.reader-top .rt-back:hover{background:var(--surface2);color:var(--ink)}
.reader-top .rt-back svg{width:16px;height:16px;fill:currentColor}
.reader-top .rt-title{flex:1;min-width:0;text-align:center}
.reader-top .rt-title .rt-book{
  font-family:var(--font-serif);font-size:15.5px;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.reader-top .rt-title .rt-ch{font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.reader-top .rt-tools{display:flex;gap:6px;flex-shrink:0}
.reader-top .icon-btn{width:36px;height:36px;border-radius:9px}
.reader-top .icon-btn svg{width:18px;height:18px}
.reader-progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:80;background:transparent;pointer-events:none}
.reader-progress i{display:block;height:100%;width:0;background:var(--accent);border-radius:0 2px 2px 0;transition:width .08s linear}

.reader-body{
  flex:1;position:relative;padding:0 16px;
}
.chapter-shell{max-width:var(--colw);margin:0 auto}
.chapter-head{padding:44px 4px 22px;text-align:center}
.chapter-head .ch-book{font-size:13px;color:var(--muted);letter-spacing:.2em}
.chapter-head h1{
  font-family:var(--font-serif);font-weight:700;font-size:clamp(22px,3.4vw,30px);
  color:var(--ink);letter-spacing:.06em;margin-top:10px;line-height:1.5;
}
.chapter-head .ch-sep{width:52px;height:2px;background:var(--accent);margin:18px auto 0;opacity:.7;border-radius:1px}
.chapter-content{
  font-family:var(--font-serif);font-size:var(--fs);line-height:var(--lh);letter-spacing:var(--ls);
  color:var(--ink);text-align:justify;padding-bottom:30px;
}
.chapter-content p{text-indent:2em;margin-bottom:.55em;word-break:break-word}
.chapter-content .verse{
  text-indent:0;text-align:center;color:var(--ink2);
  margin:.9em 0;line-height:1.8;
}
.chapter-nav{
  display:flex;justify-content:space-between;gap:12px;padding:26px 0 50px;
  border-top:1px solid var(--border);margin-top:8px;
}
.chapter-nav .nav-btn{
  flex:1;max-width:260px;padding:12px 18px;border-radius:12px;border:1px solid var(--border);
  background:var(--surface);text-align:left;transition:all .18s;min-width:0;
}
.chapter-nav .nav-btn:hover{border-color:var(--accent);box-shadow:var(--shadow)}
.chapter-nav .nav-btn:disabled{opacity:.35;cursor:not-allowed;box-shadow:none}
.chapter-nav .nav-btn.next{text-align:right}
.chapter-nav .nav-btn .nb-label{font-size:12px;color:var(--muted);letter-spacing:.12em}
.chapter-nav .nav-btn .nb-title{font-family:var(--font-serif);font-size:14.5px;color:var(--ink);margin-top:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.chapter-nav .nav-btn.next .nb-label{display:block}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,15,8,.4);z-index:90;opacity:0;pointer-events:none;
  transition:opacity .2s;
}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;bottom:0;width:min(340px,88vw);background:var(--surface);z-index:100;
  box-shadow:var(--shadow);display:flex;flex-direction:column;transition:transform .24s ease;
}
.drawer.left{left:0;transform:translateX(-102%)}
.drawer.right{right:0;transform:translateX(102%)}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--border)}
.drawer-head h3{font-family:var(--font-serif);font-size:17px;letter-spacing:.08em}
.drawer-close{width:32px;height:32px;border-radius:8px;display:grid;place-items:center;font-size:20px;color:var(--muted)}
.drawer-close:hover{background:var(--surface2);color:var(--ink)}
.toc-list{flex:1;overflow-y:auto;padding:10px}
.toc-item{
  display:flex;gap:10px;align-items:baseline;width:100%;text-align:left;
  padding:9px 12px;border-radius:9px;font-size:14px;color:var(--ink2);line-height:1.5;
}
.toc-item:hover{background:var(--surface2);color:var(--ink)}
.toc-item .toc-n{font-size:12px;color:var(--muted);flex-shrink:0;min-width:2.4em}
.toc-item.active{background:var(--accent-soft);color:var(--accent);font-weight:600}
.toc-item.active .toc-n{color:var(--accent)}

/* 阅读设置 */
.settings-body{padding:18px;overflow-y:auto;flex:1}
.setting-row{margin-bottom:22px}
.setting-row label{display:block;font-size:13px;color:var(--muted);margin-bottom:10px;letter-spacing:.08em}
.setting-row .seg{display:flex;gap:8px;flex-wrap:wrap}
.seg button{
  flex:1;min-width:56px;padding:8px 10px;border-radius:9px;border:1px solid var(--border);
  font-size:13.5px;color:var(--ink2);background:var(--surface);transition:all .15s;
}
.seg button.active{background:var(--accent);color:#fdf6e9;border-color:var(--accent)}
.font-row{display:flex;align-items:center;gap:10px}
.font-row .fval{min-width:44px;text-align:center;font-size:13px;color:var(--muted)}
.font-row button{width:40px;height:40px;border-radius:10px;border:1px solid var(--border);font-size:17px;color:var(--ink);background:var(--surface)}
.font-row button:hover{background:var(--surface2)}
.range-row input[type=range]{width:100%;accent-color:var(--accent)}
.settings-body .hint{font-size:12.5px;color:var(--muted);line-height:1.7;margin-top:18px;padding-top:16px;border-top:1px dashed var(--border)}

/* 竖排模式 */
.reader.vertical .chapter-shell{max-width:none;width:100%}
.reader.vertical .reader-body{
  height:calc(100vh - 61px - 52px);overflow-x:auto;overflow-y:hidden;padding:0 8px;
}
.reader.vertical .chapter-content{
  writing-mode:vertical-rl;text-orientation:upright;
  padding:24px 18px 30vh;font-size:calc(var(--fs) - 1px);text-align:start;
  height:100%;width:max-content;max-width:none;min-width:100%;
}
.reader.vertical .chapter-content p{
  text-indent:2em;margin-bottom:0;margin-right:1.6em;break-inside:avoid;
}
.reader.vertical .chapter-head{padding:18px 0;text-align:left;width:max-content}
.reader.vertical .chapter-head h1{font-size:clamp(20px,2.8vw,26px)}
.reader.vertical .chapter-nav{display:none}
.reader.vertical .bottom-nav{display:flex}
.bottom-nav{display:none;position:sticky;bottom:0;left:0;right:0;z-index:30;background:var(--reader-bg);border-top:1px solid var(--border);padding:8px 12px;gap:8px;justify-content:space-between}
.bottom-nav button{flex:1;padding:11px 8px;border-radius:10px;border:1px solid var(--border);background:var(--surface);font-size:14px;color:var(--ink2)}
.bottom-nav button:disabled{opacity:.35;cursor:not-allowed}
.bottom-nav button:hover:not(:disabled){border-color:var(--accent);color:var(--accent)}

/* 加载 / 错误 */
.loading-wrap{display:grid;place-items:center;padding:90px 20px;color:var(--muted)}
.spinner{width:34px;height:34px;border-radius:50%;border:3px solid var(--border);border-top-color:var(--accent);animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.error-wrap{max-width:520px;margin:60px auto;text-align:center;padding:34px 26px;border:1px solid var(--border);border-radius:16px;background:var(--surface)}
.error-wrap h2{font-family:var(--font-serif);font-size:22px;color:var(--ink);margin-bottom:10px}
.error-wrap p{color:var(--muted);font-size:14px;margin-bottom:18px}
.error-wrap .btn{padding:10px 22px}

.site-footer{
  text-align:center;padding:26px 16px 30px;color:var(--muted);font-size:12.5px;
  border-top:1px solid var(--border);margin-top:auto;
}
.site-footer a{color:var(--ink2);text-decoration:underline;text-underline-offset:3px}

/* 滚动条 */
::-webkit-scrollbar{width:9px;height:9px}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:5px}
::-webkit-scrollbar-thumb:hover{background:var(--muted)}
::-webkit-scrollbar-track{background:transparent}

/* 响应式 */
@media (max-width:720px){
  .topbar{padding:8px 12px;gap:10px}
  .brand-text{font-size:17px;letter-spacing:.06em}
  .brand-seal{width:30px;height:30px;font-size:16px}
  #randBtn{display:none}
  .hero{padding:36px 14px 24px}
  .hero .stat b{font-size:20px}
  .book-grid{grid-template-columns:repeat(auto-fill,minmax(158px,1fr));gap:10px}
  .book-card{padding:14px 12px 12px}
  .book-card .bc-name{font-size:17px}
  .book-card .bc-meta{flex-direction:column;gap:2px}
  .reader-top{top:53px}
  .reader-top .rt-book{font-size:14px}
  .reader-top .icon-btn{width:33px;height:33px}
  .reader-top .rt-tools .icon-btn{display:none}
  .reader-top .rt-tools .icon-btn.keep{display:grid}
  .chapter-head{padding:30px 4px 16px}
  .chapter-nav .nav-btn{max-width:none}
  .site-footer{padding:20px 12px 24px}
}
@media (max-width:420px){
  .topbar{gap:8px}
  .brand-text{display:none}
  .searchbox{margin-left:2px}
}