:root{--card-h:320px;--card-gap:16px}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,"Noto Sans SC","Segoe UI",sans-serif;background:#f5f0eb;color:#3a3a3a;min-height:100vh}
.login-overlay{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#2c1810;z-index:1000}
.login-box{background:#f5f0eb;padding:48px;border-radius:16px;width:360px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.5)}
.login-box h1{font-size:24px;margin-bottom:4px;color:#2c1810;font-weight:600}
.login-box p{font-size:14px;color:#8b7355;margin-bottom:28px}
.login-box input{width:100%;padding:14px 18px;background:#fff;border:1px solid #d4c5a9;border-radius:10px;color:#3a3a3a;font-size:16px;outline:none;transition:border .2s}
.login-box input:focus{border-color:#8b6914}
.login-box .error{color:#c0392b;font-size:13px;margin-top:10px;min-height:20px}
.login-box button{width:100%;padding:14px;background:#8b6914;border:none;border-radius:10px;color:#fff;font-size:16px;cursor:pointer;margin-top:16px;transition:background .2s}
.login-box button:hover{background:#6b4f10}
.login-box .lock{font-size:48px;margin-bottom:12px}.login-box .hint{color:#aaa;font-size:11px;margin-top:12px}
.page{display:none}.page.active{display:block}
.top-bar{background:#2c1810;color:#d4c5a9;padding:12px 24px;display:none;align-items:center;justify-content:space-between}
.top-bar .title{font-size:16px;font-weight:600}
/* 顶栏（书架页+阅读页）：滚动跟手隐藏，上滑显示；平滑收尾 */
.top-bar{transition:transform .18s ease,opacity .18s ease;opacity:1}
.top-bar.tb-no-anim{transition:none!important}
.top-bar.tb-hide{transform:translateY(-110%)!important;opacity:0;pointer-events:none}
.top-bar .count{font-size:13px;color:#8b7355}
.top-bar .back-btn{background:transparent;border:1px solid #5a4a3a;color:#d4c5a9;padding:6px 14px;border-radius:6px;cursor:pointer;font-size:13px}
.top-bar .back-btn:hover{background:#3a2a1a}
.list-wrap{max-width:1000px;margin:0 auto;padding:20px}#listPage{overflow-y:auto}
.tag-bar{margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid #e0d5c5}
.tag-btn{background:transparent;border:1px solid #e0d5c5;border-radius:6px;padding:6px 14px;font-size:13px;cursor:pointer;color:#5a4a3a;transition:all .2s;white-space:nowrap}
.tag-btn:hover{background:#f0ece6;color:#8b6914;border-color:#8b6914}
.tag-btn.active{background:#8b6914;color:#fff;border-color:#8b6914}
.tag-btn.excl{background:#fbeaea;color:#c62828;border-color:#c62828;text-decoration:line-through}
.filter-section{border:1px solid #e0d5c5;border-radius:8px;margin-bottom:8px;overflow:hidden}
.filter-header{display:flex;justify-content:space-between;align-items:center;padding:8px 14px;background:#f8f6f3;cursor:pointer;font-size:13px;color:#5a4a3a;user-select:none}
.filter-header:hover{background:#f0ece6}
.filter-arrow{font-size:10px;color:#8b7355;transition:transform .2s}
.filter-body{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:6px;padding:8px 12px}
.bookshelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}
.book-card{background:#fff;border:1px solid #e0d5c5;border-radius:12px;padding:14px 16px;cursor:pointer;transition:all .2s;box-shadow:0 2px 8px rgba(0,0,0,.06);height:var(--card-h);box-sizing:border-box;display:flex;flex-direction:column;overflow:hidden}
.book-card:hover{border-color:#8b6914;box-shadow:0 4px 16px rgba(139,105,20,.15);transform:translateY(-2px)}
.book-card .t-tier{font-size:11px;padding:2px 8px;border-radius:4px;display:inline-block;margin-bottom:8px;align-self:flex-start;flex:0 0 auto;width:fit-content}
.t-tier.t1{background:#e8f5e9;color:#2e7d32;border:1px solid #a5d6a7}
.t-tier.t2{background:#e3f2fd;color:#1565c0;border:1px solid #90caf9}
.t-tier.t3{background:#fff8e1;color:#f57f17;border:1px solid #ffe082}
.t-tier.t4{background:#f5f5f5;color:#757575;border:1px solid #ccc}
.book-card .bt{font-size:15px;font-weight:500;color:#2c1810;margin-bottom:6px;line-height:1.4;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:0 0 auto}
.book-card .tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:6px;max-height:190px;overflow:hidden;align-content:flex-start;flex:0 0 auto}
.book-card .tags .tag-sep{width:100%;height:0;border-top:1px dashed #eee;margin:1px 0}
.book-card .tag{font-size:10px;padding:2px 8px;border-radius:10px;border:1px solid #e0d5c5}
.book-card .tag-play{background:#e8f5e9;color:#2e7d32;border-color:#a5d6a7}
.book-card .tag-char{background:#e3f2fd;color:#1565c0;border-color:#90caf9}
.book-card .tag-wear{background:#fce4ec;color:#c62828;border-color:#f48fb1}
.book-card .bm{font-size:11px;color:#8b7355}
.book-card .au{font-size:11px;color:#aaa;margin-top:2px}
.book-card .xp-badge{display:inline-block;font-size:10px;padding:1px 8px;border-radius:8px;margin-left:6px;font-weight:600}
.xp-high{background:#c62828;color:#fff}
.xp-good{background:#e65100;color:#fff}
.xp-mid{background:#f9a825;color:#2c1810}
.xp-low{background:#e0d5c5;color:#8b7355}
.date-tag{font-size:11px;color:#bbb;margin-left:8px}
.read-badge{font-size:10px;color:#2e7d32;background:#e8f5e9;padding:1px 6px;border-radius:4px;margin-left:6px;border:1px solid #a5d6a7}
.book-card.hide{display:none}
.search-bar{display:flex;margin-bottom:16px;gap:8px}
.search-bar input{flex:1;padding:10px 16px;border:1px solid #d4c5a9;border-radius:8px;font-size:14px;background:#fff;color:#2c1810;outline:none;transition:border-color .2s}
.search-bar input:focus{border-color:#8b6914}
.search-bar input::placeholder{color:#bbb}
.search-bar .clear-btn{background:transparent;border:1px solid #d4c5a9;border-radius:8px;padding:0 14px;cursor:pointer;color:#8b7355;font-size:16px}
.search-bar .clear-btn:hover{background:#f5f0eb}
.reader-wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px 60px}
.reader-header{width:100%;max-width:900px;margin:0 auto;padding:20px 0;border-bottom:1px solid #e0d5c5;margin-bottom:28px}
.reader-header h1{font-size:24px;color:#2c1810;margin-bottom:4px;line-height:1.4}
.reader-header .meta{font-size:13px;color:#8b7355}
.reader-content{font-size:17px;line-height:2;color:#3a3a3a;text-align:justify;width:100%;max-width:900px;margin:0 auto;padding:0 4%}
.reader-content p{margin-bottom:1.2em;text-indent:2em;word-break:break-word}
.reader-content .summary{background:#fff8f0;border:1px solid #e0d5c5;border-radius:8px;padding:16px 20px;margin-bottom:28px;font-size:14px;color:#8b7355;line-height:1.8;text-indent:0}
.reader-content .head-info{background:#f8f6f3;border:1px solid #e0d5c5;border-radius:8px;padding:14px 18px;margin-bottom:24px;font-size:14px;color:#5a4a3a;line-height:1.6;text-indent:0}
.reader-content .head-info .tags{display:flex;flex-wrap:wrap;gap:4px}
.reader-content .head-info .tag{font-size:11px;background:#e8e3dc;color:#7a6a5a;padding:2px 10px;border-radius:10px;border:1px solid #d4c5a9}
.reader-footer{padding:24px 0;text-align:center;color:#aaa;font-size:13px;border-top:1px solid #e0d5c5;margin-top:28px}
.loading{text-align:center;padding:60px 20px;color:#8b7355;font-size:15px}
@media(max-width:600px){
  .bookshelf{grid-template-columns:1fr}
  .reader-wrap{padding:0 16px 40px}
  .reader-content{font-size:16px;line-height:1.9}
  .top-bar{padding:10px 16px}
  .tag-btn{padding:5px 10px;font-size:12px}
  .filter-body{grid-template-columns:repeat(auto-fill,minmax(75px,1fr))}
}
/* Night mode - AMOLED pure black */
.night-mode{background:#000!important;color:#ccc!important}
.night-mode .top-bar{background:#000!important;border-bottom:1px solid #222!important}
.night-mode .back-btn{background:#111!important;border-color:#333!important;color:#ccc!important}
.night-mode .back-btn:hover{background:#222!important}
.night-mode .reader-wrap{background:#000!important}
.night-mode .reader-content p{color:#ccc!important;text-shadow:0 1px 2px rgba(0,0,0,.5)}
.night-mode .reader-content .head-info{background:#111!important;border-color:#333!important;color:#ccc!important}
.night-mode .reader-content .summary{background:#111!important;border-color:#333!important;color:#999!important}
.night-mode .reader-header{border-color:#222!important}
.night-mode .reader-footer{border-color:#222!important;color:#555!important}
.night-mode .reader-footer:hover{color:#888!important}
.night-mode .reader-content .head-info .tag{background:#222!important;color:#999!important;border-color:#444!important}
.night-mode .loading{color:#666!important}
/* 夜览模式：书架页/卡片/筛选栏（原仅覆盖阅读页, 书架仍白底刺眼） */
.night-mode .book-card{background:#0d0d0d!important;border-color:#222!important}
.night-mode .book-card:hover{border-color:#444!important;box-shadow:0 4px 16px rgba(255,255,255,.06)!important}
.night-mode .book-card .bt{color:#ddd!important}
.night-mode .book-card .bm,.night-mode .book-card .au{color:#777!important}
.night-mode .book-card .tag{background:#1a1a1a!important;color:#999!important;border-color:#333!important}
.night-mode .book-card .tag-play,.night-mode .book-card .tag-char,.night-mode .book-card .tag-wear{background:#1a1a1a!important;color:#aaa!important;border-color:#333!important}
.night-mode .tag-bar{border-bottom-color:#222!important}
.night-mode .tag-btn{background:#111!important;border-color:#333!important;color:#bbb!important}
.night-mode .tag-btn:hover{background:#1a1a1a!important;color:#ddd!important;border-color:#555!important}
.night-mode .tag-btn.active{background:#8b6914!important;color:#fff!important;border-color:#8b6914!important}
.night-mode .tag-btn.excl{background:#2a1010!important;color:#e57373!important;border-color:#7a2020!important}
.night-mode .filter-section{border-color:#222!important}
.night-mode .filter-header{background:#111!important;color:#bbb!important}
.night-mode .filter-header:hover{background:#1a1a1a!important}
.night-mode .search-bar input{background:#111!important;border-color:#333!important;color:#ddd!important}
.night-mode .search-bar .clear-btn{border-color:#333!important;color:#888!important}
.night-mode .list-wrap,.night-mode #listPage{background:#000!important}
.night-mode .xp-low{background:#222!important;color:#888!important}
.night-mode .date-tag{color:#555!important}
.night-mode .read-badge{background:#0d1f0d!important;color:#7ab87a!important;border-color:#2a4a2a!important}
.night-mode .t-tier.t1,.night-mode .t-tier.t2,.night-mode .t-tier.t3,.night-mode .t-tier.t4{background:#1a1a1a!important;color:#aaa!important;border-color:#333!important}

/* 翻译标签标记 */
.tag.tag-trans{background:#e8f0ff;color:#2b5bb5;border:1px solid #b8cdf5}
.night-mode .tag.tag-trans{background:#14203a;color:#7fa8e8;border-color:#2a3f66}

/* 虚拟滚动: 容器充当定位上下文, 卡片绝对定位(高度固定以便算行) */
.vshelf{position:relative;display:block!important}
.vshelf .vcell{overflow:hidden}
.vshelf .book-card{height:var(--card-h);overflow:hidden;box-sizing:border-box}

/* ===== 双滑块区间控件 ===== */
.dual-range{position:relative;height:34px;margin:6px 4px 14px;flex:1 1 100%;min-width:180px}
.dr-track{position:absolute;top:15px;left:0;right:0;height:4px;background:#e0d5c5;border-radius:2px}
.dr-fill{position:absolute;top:15px;height:4px;background:#8b6914;border-radius:2px}
.dual-range input[type=range]{position:absolute;top:6px;left:0;width:100%;height:22px;margin:0;background:none;-webkit-appearance:none;appearance:none;pointer-events:none}
.dual-range input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:18px;height:18px;border-radius:50%;background:#8b6914;border:2px solid #fff;box-shadow:0 1px 4px rgba(0,0,0,.25);cursor:pointer;pointer-events:auto}
.dual-range input[type=range]::-moz-range-thumb{width:16px;height:16px;border-radius:50%;background:#8b6914;border:2px solid #fff;cursor:pointer;pointer-events:auto}
.dr-label{display:flex;justify-content:space-between;font-size:12px;color:#8b7355;margin-top:2px}
.dr-val{color:#8b6914;font-weight:600}
.night-mode .dr-track{background:#333}
.night-mode .dr-fill{background:#c9a227}
.night-mode .dr-label{color:#888}
.night-mode .dr-val{color:#c9a227}

/* 双滑块独占一行(避免与下方按钮重叠) */
.range-row{grid-column:1 / -1;width:100%;display:block;margin:2px 0 8px}
.filter-body .dual-range{width:100%;box-sizing:border-box}
.filter-body > div[style*='flex']{grid-column:1 / -1}

.tag.tag-coll{background:#fff4e0;color:#a06000;border:1px solid #f0d090}
.night-mode .tag.tag-coll{background:#2a2010;color:#d0a040;border-color:#4a3a18}

/* 标签溢出保护: 卡片固定高, 标签过多时截断而非撑爆 */
.tag.tag-more{background:#eee;color:#888;font-size:11px;padding:1px 5px;border-radius:8px;cursor:pointer;user-select:none}
.tag.tag-more:hover{background:#ddd;color:#555}
.night-mode .tag.tag-more{background:#333;color:#999}

/* 全部标签浮层(点击 +N 弹出) */
.alltags-pop{position:fixed;z-index:9999;background:#fff;border:1px solid #d4c5a9;border-radius:10px;
  box-shadow:0 8px 28px rgba(0,0,0,.18);padding:12px 14px;max-width:min(560px,92vw);max-height:70vh;
  overflow-y:auto;font-size:12px}
.alltags-pop .atp-close{position:absolute;top:6px;right:10px;cursor:pointer;color:#999;font-size:18px;line-height:1}
.alltags-pop .atp-close:hover{color:#333}
.alltags-pop .atp-row{display:flex;flex-wrap:wrap;gap:5px;align-items:center;margin-bottom:7px}
.alltags-pop .atp-name{font-size:11px;color:#8b6914;min-width:34px;font-weight:600;flex:0 0 auto}
.alltags-pop .atp-row .tag{font-size:11px;padding:2px 8px;border-radius:10px;border:1px solid #e0d5c5}
.alltags-pop .atp-meta{margin-top:9px;padding-top:8px;border-top:1px solid #eee;color:#888;font-size:11px;line-height:1.5}
.night-mode .alltags-pop{background:#1a1a1a;border-color:#333;color:#ddd}
.night-mode .alltags-pop .atp-meta{border-color:#333;color:#999}

/* 移动端适配: 窄屏标签换行多 → 卡片加高, 字号微调 */
@media (max-width: 700px){
  :root{--card-h:340px}
  .book-card .tags{max-height:200px}
  .book-card .tag{font-size:11px;padding:2px 7px}
  .book-card .bt{font-size:14px}
}
@media (max-width: 480px){
  :root{--card-h:360px}
  .book-card .tags{max-height:228px}

/* 标签类别文字前缀(玩法/角色/衣着) */
.book-card .tag-grp{font-size:10px;color:#8b6914;font-weight:600;margin-right:2px;flex:0 0 auto;align-self:center}
.night-mode .book-card .tag-grp{color:#b8956a}