*{margin:0;padding:0;box-sizing:border-box}
html,body{height:100%}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;background:linear-gradient(135deg,#667eea 0%,#764ba2 100%);min-height:100vh;color:#333}
.layout{display:flex;max-width:1400px;margin:20px auto;gap:0;min-height:calc(100vh - 40px)}
.sidebar{width:280px;background:#fff;border-radius:14px 0 0 14px;box-shadow:0 20px 60px rgba(0,0,0,.25);display:flex;flex-direction:column;overflow:hidden}
.sidebar-head{padding:18px 20px;background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff}
.sidebar-head h2{font-size:15px;font-weight:600}
.sidebar-head .sub{font-size:12px;opacity:.8;margin-top:4px}
.tabs{display:flex;background:#f1f3f5;border-bottom:1px solid #e9ecef}
.tab{flex:1;padding:10px;text-align:center;font-size:13px;cursor:pointer;color:#6c757d;border-bottom:2px solid transparent;transition:.2s;position:relative}
.tab.active{color:#1e3c72;border-bottom-color:#667eea;background:#fff;font-weight:600}
.tab .badge{background:#667eea;color:#fff;font-size:10px;padding:1px 6px;border-radius:8px;margin-left:2px;display:none}
.tab .badge.show{display:inline-block}
.sidebar-body{flex:1;overflow-y:auto;padding:12px}
.toc-item{display:block;padding:7px 10px;font-size:13px;color:#495057;text-decoration:none;border-radius:6px;cursor:pointer;transition:.15s;border-left:3px solid transparent;margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.toc-item:hover{background:#f1f3f5;color:#1e3c72}
.toc-item.active{background:#eef1ff;color:#667eea;border-left-color:#667eea;font-weight:600}
.toc-item.h1{padding-left:10px;font-weight:600}
.toc-item.h2{padding-left:22px}
.toc-item.h3{padding-left:34px;font-size:12.5px;color:#6c757d}
.toc-item.h4{padding-left:46px;font-size:12px;color:#868e96}
.toc-empty{text-align:center;color:#adb5bd;font-size:13px;padding:30px 10px;line-height:1.6}
.ann-list-item{padding:10px;border-radius:8px;background:#f8f9ff;margin-bottom:8px;border-left:3px solid #667eea;font-size:12.5px;cursor:pointer}
.ann-list-item .note{color:#1565c0;line-height:1.5;margin-bottom:4px;font-weight:500}
.ann-list-item .quote{color:#868e96;font-size:11.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.ann-list-item .quote .mark{color:#adb5bd}
.ann-list-item .meta{color:#adb5bd;font-size:11px;margin-top:4px;display:flex;justify-content:space-between}
.ann-list-item .meta .del{color:#dc3545;cursor:pointer}
.ann-list-item.lost{opacity:.6}
.main{flex:1;background:#fff;border-radius:0 14px 14px 0;box-shadow:0 20px 60px rgba(0,0,0,.25);display:flex;flex-direction:column;overflow:hidden}
.header{background:linear-gradient(135deg,#1e3c72,#2a5298);color:#fff;padding:18px 28px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px}
.header h1{font-size:20px;font-weight:600}
.header .sub{font-size:12px;opacity:.85;margin-top:3px}
.header-actions{display:flex;gap:8px}
.btn{padding:7px 14px;border:none;border-radius:7px;font-size:12.5px;font-weight:500;cursor:pointer;background:rgba(255,255,255,.18);color:#fff;transition:.15s;display:inline-flex;align-items:center;gap:5px}
.btn:hover{background:rgba(255,255,255,.3)}
.btn-primary{background:linear-gradient(135deg,#667eea,#764ba2)}
.btn-primary:hover{filter:brightness(1.1)}
.btn-sm{padding:5px 10px;font-size:12px}
.meta-bar{padding:10px 28px;background:#f8f9fa;border-bottom:1px solid #e9ecef;display:flex;align-items:center;gap:14px;font-size:12.5px;color:#6c757d;flex-wrap:wrap}
.status-dot{width:9px;height:9px;border-radius:50%;background:#adb5bd;display:inline-block}
.status-dot.ok{background:#28a745}
.status-dot.loading{background:#ffc107;animation:pulse 1s infinite}
.status-dot.err{background:#dc3545}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.meta-bar .fn{margin-left:auto;font-family:Consolas,Monaco,monospace}
.content{padding:30px 40px;line-height:1.9;font-size:16px;color:#2d3436;flex:1;overflow-y:auto;position:relative}
.loading{text-align:center;padding:80px 20px;color:#6c757d}
.spinner{width:40px;height:40px;border:4px solid #e9ecef;border-top-color:#667eea;border-radius:50%;animation:spin .9s linear infinite;margin:0 auto 16px}
@keyframes spin{to{transform:rotate(360deg)}}
.err-box{background:#f8d7da;color:#721c24;padding:18px;border-radius:10px;line-height:1.7;font-size:14px}
.err-box code{background:rgba(0,0,0,.08);padding:2px 6px;border-radius:4px;font-family:Consolas,Monaco,monospace}
.doc h1,.doc h2,.doc h3,.doc h4,.doc h5,.doc h6{margin-top:1.3em;margin-bottom:.6em;font-weight:600;color:#1e3c72;scroll-margin-top:20px}
.doc h1{font-size:24px}.doc h2{font-size:20px}.doc h3{font-size:18px}
.doc p{margin-bottom:1em;text-indent:2em;position:relative}
.doc ul,.doc ol{margin-left:2em;margin-bottom:1em}
.doc li{margin-bottom:.4em}
.doc table{width:100%;border-collapse:collapse;margin-bottom:1em}
.doc td,.doc th{border:1px solid #dee2e6;padding:8px 12px}
.doc th{background:#f8f9fa;font-weight:600}
.doc img{max-width:100%;height:auto;margin:10px 0;border-radius:8px}
.doc blockquote{border-left:4px solid #667eea;padding:8px 16px;margin:1em 0;background:#f8f9ff;color:#555}
.ann{background:#e7f0ff;border-bottom:1.5px dashed #1e88e5;cursor:pointer;position:relative;padding:0 2px;border-radius:2px;color:#1565c0}
.ann:hover{background:#c9e0ff}
.ann-tooltip{position:absolute;background:#1e3c72;color:#fff;padding:10px 12px;border-radius:8px;font-size:12.5px;line-height:1.55;z-index:999;max-width:300px;box-shadow:0 8px 24px rgba(0,0,0,.3);display:none}
.ann-tooltip::after{content:"";position:absolute;top:-5px;left:15px;border:5px solid transparent;border-bottom-color:#1e3c72}
.ann-tooltip .note{margin-bottom:4px}
.ann-tooltip .meta{font-size:11px;opacity:.75;margin-top:6px;display:flex;justify-content:space-between}
.ann-tooltip .meta .author{font-weight:600;margin-right:6px;opacity:1}
.ann-tooltip .del{color:#ff8a80;cursor:pointer}
.ann-toolbar{position:absolute;background:#fff;border-radius:8px;box-shadow:0 8px 24px rgba(0,0,0,.2);padding:4px;display:none;z-index:998}
.ann-toolbar button{background:none;border:none;padding:7px 14px;cursor:pointer;font-size:12.5px;color:#1e3c72;border-radius:5px}
.ann-toolbar button:hover{background:#eef1ff}
.comments-section{padding:20px 28px;background:#fafbfc;border-top:1px solid #e9ecef}
.comments-section h3{font-size:15px;color:#495057;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.comment-count{background:#667eea;color:#fff;font-size:11px;padding:2px 8px;border-radius:10px}
.comment-form{margin-bottom:16px}
.comment-form textarea{width:100%;border:1px solid #dee2e6;border-radius:8px;padding:10px 12px;font-size:13.5px;font-family:inherit;resize:vertical;min-height:60px;outline:none}
.comment-form textarea:focus{border-color:#667eea;box-shadow:0 0 0 3px rgba(102,126,234,.15)}
.comment-form .row{display:flex;gap:10px;margin-top:8px;align-items:center}
.comment-form input.name{border:1px solid #dee2e6;border-radius:6px;padding:7px 10px;font-size:13px;outline:none;width:140px}
.comment-form input.name:focus{border-color:#667eea}
.comment-form button{margin-left:auto}
.comment-list{display:flex;flex-direction:column;gap:12px}
.comment{background:#fff;border:1px solid #e9ecef;border-radius:10px;padding:12px 14px}
.comment .chead{display:flex;align-items:center;gap:8px;margin-bottom:6px}
.comment .avatar{width:30px;height:30px;border-radius:50%;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;flex-shrink:0}
.comment .cname{font-size:13.5px;font-weight:600;color:#1e3c72}
.comment .ctime{font-size:11.5px;color:#adb5bd;margin-left:auto}
.comment .cbody{font-size:13.5px;color:#343a40;line-height:1.7;padding-left:38px;white-space:pre-wrap;word-break:break-word}
.comment .cactions{padding-left:38px;margin-top:6px;display:flex;gap:12px;font-size:12px}
.comment .cactions a{color:#667eea;cursor:pointer;text-decoration:none}
.reply-form{padding-left:38px;margin-top:8px;display:none}
.reply-form.show{display:block}
.reply-form textarea{width:100%;border:1px solid #dee2e6;border-radius:6px;padding:8px 10px;font-size:13px;font-family:inherit;resize:vertical;min-height:46px;outline:none}
.reply-form .rf-row{display:flex;gap:8px;margin-top:6px;align-items:center}
.reply-form input.name{border:1px solid #dee2e6;border-radius:5px;padding:5px 8px;font-size:12px;outline:none;width:120px}
.reply-form button{margin-left:auto}
.reply-list{padding-left:38px;margin-top:10px;display:flex;flex-direction:column;gap:8px;border-left:2px solid #eef1ff;margin-left:14px}
.reply{background:#f8f9ff;border-radius:8px;padding:8px 10px}
.reply .rhead{display:flex;align-items:center;gap:6px;margin-bottom:3px}
.reply .rname{font-size:12.5px;font-weight:600;color:#1e3c72}
.reply .rtime{font-size:11px;color:#adb5bd;margin-left:auto}
.reply .rbody{font-size:13px;color:#495057;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.no-comments{text-align:center;color:#adb5bd;font-size:13px;padding:20px}
.footer{text-align:center;font-size:12px;color:#adb5bd;padding:12px;border-top:1px dashed #e9ecef;background:#fafbfc}
.toast{position:fixed;top:20px;left:50%;transform:translateX(-50%);background:#333;color:#fff;padding:10px 20px;border-radius:8px;font-size:13px;z-index:9999;box-shadow:0 8px 20px rgba(0,0,0,.3);opacity:0;transition:opacity .3s}
.toast.show{opacity:1}
.toast.err{background:#dc3545}
.toast.ok{background:#28a745}
@media(max-width:900px){
.layout{flex-direction:column;margin:10px}
.sidebar{width:100%;border-radius:14px;max-height:40vh}.main{border-radius:14px}
.content{padding:20px}.comments-section{padding:16px}.header{padding:14px 18px}.meta-bar{padding:10px 18px}
}