:root{--paper:#f6f1e5;--paper-aged:#f0e9d8;--ink:#2b2620;--muted:#7d7462;--primary:#2d8659;--primary-dark:#1f6b45;--border:#e5e1d8;--card:#fffdf7;--serif:'Noto Serif SC','Songti SC','STSong',serif}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:15px;line-height:1.7}
a{color:inherit;text-decoration:none}
.wrap{max-width:1080px;margin:0 auto;padding:0 16px}

/* 顶栏 */
.topbar{position:sticky;top:0;z-index:50;background:rgba(246,241,229,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--border)}
.bar-inner{display:flex;align-items:center;gap:18px;height:56px}
.brand{font-size:20px;font-weight:700;color:var(--primary);letter-spacing:2px;white-space:nowrap}
.search{flex:1;display:flex;max-width:420px}
.search input{flex:1;border:1px solid var(--border);border-right:0;background:var(--card);padding:7px 12px;font-size:13px;border-radius:20px 0 0 20px;outline:none;font-family:var(--serif)}
.search input:focus{border-color:var(--primary)}
.search button{border:1px solid var(--primary);background:var(--primary);color:#fff;padding:7px 16px;border-radius:0 20px 20px 0;cursor:pointer;font-size:13px;font-family:var(--serif)}
.top-nav{margin-left:auto;display:flex;gap:16px;font-size:14px}
.top-nav a:hover{color:var(--primary)}
.rd-title{font-size:14px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}

/* 分类条 */
.cat-bar{display:flex;flex-wrap:wrap;gap:8px;padding:16px 0 4px}
.cat-bar a{padding:5px 14px;border:1px solid var(--border);border-radius:16px;background:var(--card);font-size:13px;color:var(--muted)}
.cat-bar a.on,.cat-bar a:hover{border-color:var(--primary);color:var(--primary)}
.result-meta{color:var(--muted);font-size:13px;margin:8px 0 14px}
.result-meta b{color:var(--primary)}

/* 书目网格 */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:18px;padding:6px 0 24px}
.book-card{background:var(--card);border:1px solid var(--border);border-radius:8px;overflow:hidden;transition:.15s}
.book-card:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(43,38,32,.1);border-color:var(--primary)}
.cover{aspect-ratio:3/4;background:linear-gradient(160deg,#39634d,var(--primary) 55%,#3f9468);display:flex;align-items:center;justify-content:center;padding:14px}
.cover span{color:#f6f1e5;font-size:17px;line-height:1.5;letter-spacing:2px;text-align:center;word-break:break-all;display:-webkit-box;-webkit-line-clamp:5;-webkit-box-orient:vertical;overflow:hidden}
.cover.lg{width:170px;border-radius:6px;flex-shrink:0}
.meta{padding:10px 12px 12px}
.meta h3{margin:0;font-size:14px;line-height:1.45;max-height:2.9em;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.meta .sub{margin:5px 0 0;font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.meta .rate{margin:5px 0 0;font-size:12px;color:#c0392b}
.meta .rate:empty{display:none}

/* 分页 */
.pager{display:flex;gap:8px;justify-content:center;padding:8px 0 30px;flex-wrap:wrap}
.pager a,.pager span{min-width:34px;text-align:center;padding:6px 10px;border:1px solid var(--border);background:var(--card);border-radius:4px;font-size:13px}
.pager .cur{background:var(--primary);border-color:var(--primary);color:#fff}
.pager a:hover{border-color:var(--primary);color:var(--primary)}

/* 详情页 */
.book-head{display:flex;gap:26px;padding:26px 0 8px}
.book-info h1{margin:0 0 10px;font-size:26px;line-height:1.4}
.info-line{color:var(--muted);font-size:14px;margin:0 0 6px}
.info-line span{margin-right:4px}
.cat-link{color:var(--primary)}
.rate-line{font-size:17px;color:#c0392b;margin:6px 0 16px}
.rate-line small{color:var(--muted);font-size:12px;margin-left:4px}
.actions{display:flex;gap:12px}
.btn{display:inline-block;padding:9px 26px;border-radius:22px;font-size:14px;border:1px solid transparent;cursor:pointer;font-family:var(--serif)}
.btn.primary{background:var(--primary);color:#fff}
.btn.primary:hover{background:var(--primary-dark)}
.btn.ghost{background:transparent;border-color:var(--primary);color:var(--primary)}
.sec{margin:26px 0}
.sec h2{font-size:18px;border-left:4px solid var(--primary);padding-left:12px;margin:0 0 14px}
.sec h2 small{color:var(--muted);font-size:13px;font-weight:400}
.intro{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:18px 20px;color:#4a4438}
.review{border-bottom:1px dashed var(--border);padding:12px 4px}
.rv-head{display:flex;gap:10px;align-items:baseline;font-size:13px}
.rv-head time{color:var(--muted);font-size:12px}
.stars{color:#c0392b;font-size:12px;letter-spacing:1px}
.rv-body{margin-top:6px;font-size:14px;color:#3d3830}
.rv-body.long{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:14px}
.review-form-hint{background:var(--paper-aged);border:1px dashed var(--border);border-radius:8px;padding:12px 16px;color:var(--muted);font-size:13px;margin-bottom:14px}
.empty{padding:50px 0;text-align:center;color:var(--muted)}
.empty.small{padding:14px 0;font-size:13px}

/* 友情链接 */
.friend-links{margin-top:36px;border-top:1px solid var(--border);background:var(--paper-aged)}
.fl-inner{display:flex;gap:1.6rem;align-items:center;padding-top:14px;padding-bottom:14px;font-size:.85rem;flex-wrap:wrap}
.fl-label{color:var(--muted)}
.friend-links a{color:var(--muted)}
.friend-links a:hover{color:var(--primary)}
.footer{background:#2b2620;color:#a89f8d;text-align:center;font-size:12px;padding:22px 0;line-height:2}

/* ===== 阅读器 ===== */
.reader-page{overflow:hidden;height:100vh}
.reader-wrap{display:flex;height:calc(100vh - 56px)}
#pdf-pane{flex:1;overflow:auto;background:#4a4d52;position:relative}
#pdf-pane #loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#ccc;font-size:14px}
#viewer{padding:14px}
#viewer canvas{display:block;margin:0 auto 12px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.35);width:100%!important;height:auto!important}
#trans-pane{width:360px;flex-shrink:0;background:var(--paper);border-left:1px solid var(--border);position:relative;overflow:auto}
#trans-pane.collapsed{width:0;border-left:none}
#trans-pane.collapsed .tp-inner{display:none}
#pane-toggle{position:absolute;left:-1px;top:50%;transform:translateY(-50%);width:18px;height:56px;border:1px solid var(--border);border-left:none;background:var(--card);cursor:pointer;color:var(--muted);font-size:14px;padding:0}
#trans-pane.collapsed #pane-toggle{left:0;border-left:1px solid var(--border)}
.tp-inner{padding:16px 16px 16px 26px}
.tp-inner h3{margin:0 0 6px;font-size:16px;color:var(--primary)}
.tp-tip{font-size:12px;color:var(--muted);margin:0 0 12px}
.tp-form label{font-size:13px;display:block;margin-bottom:8px}
.tp-form input[type=number]{border:1px solid var(--border);padding:4px 8px;border-radius:4px;font-family:var(--serif)}
.seg{display:inline-flex;border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-bottom:8px}
.seg button{border:none;background:var(--card);padding:4px 14px;cursor:pointer;font-size:12px;color:var(--muted);font-family:var(--serif)}
.seg button.on{background:var(--primary);color:#fff}
#tp-content{width:100%;border:1px solid var(--border);border-radius:6px;padding:10px;font-family:var(--serif);font-size:14px;line-height:1.8;background:var(--card);resize:vertical}
#tp-content.vmode{writing-mode:vertical-rl;height:220px}
.tp-actions{display:flex;gap:10px;margin-top:10px}
.tp-actions .btn{padding:7px 18px;font-size:13px}
.tp-msg{font-size:12px;color:#c0392b;min-height:18px;margin:6px 0 0}
.tp-inner h4{margin:18px 0 8px;font-size:14px;border-top:1px dashed var(--border);padding-top:14px}
.tp-list .para{background:var(--card);border:1px solid var(--border);border-radius:6px;padding:10px 12px;margin-bottom:8px;font-size:13px;line-height:1.8}
.tp-list .para.v{writing-mode:vertical-rl;max-height:220px;overflow:auto}
.tp-list .para .pv-meta{font-size:11px;color:var(--muted);margin-bottom:4px}
@media (max-width:768px){
  .book-head{flex-direction:column;align-items:center;text-align:center}
  .actions{justify-content:center}
  .reader-wrap{flex-direction:column}
  #trans-pane{width:100%;height:44vh;border-left:none;border-top:1px solid var(--border)}
}