:root{--bg:#06182e;--surface:#0b2a4f;--surface-hover:#11345f;--border:#163a63;--border-light:#1f4a7d;--text:#cfe0f2;--text-bright:#f0f6ff;--text-dim:#87a0c4;--accent:#3d8bff;--green:#12b76a;--red:#f24949;--gold:#d0ac53;--gold-dim:rgba(208,172,83,0.15);--sidebar-w:210px;color-scheme:dark}body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",Roboto,"Helvetica Neue",Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg);color:var(--text);margin:0}.top-nav-brand{text-decoration:none;cursor:pointer}.top-nav-brand:hover{color:var(--gold)}.reader-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,720px) minmax(0,1fr);gap:48px;padding:20px 28px 20px;align-items:start;max-width:1600px;margin:0 auto}.reader-main{grid-column:2;min-width:0}.reader-toc{grid-column:1;grid-row:1 / -1;justify-self:start;width:300px;position:sticky;top:76px;height:calc(100vh - 96px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border-light) transparent;border:1px solid var(--border);border-radius:10px;padding:14px;background:linear-gradient(180deg,var(--surface) 0%,var(--bg) 100%)}.site-footer{grid-column:1 / -1}.reader-toc-toggle{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;background:none;border:none;padding:0;margin-bottom:10px;font-family:inherit;cursor:default}.reader-toc-title{font-size:13px;font-weight:700;color:var(--text-bright);letter-spacing:1px;padding-left:8px;border-left:3px solid var(--accent);text-decoration:none}.reader-toc-title:hover{color:var(--gold)}.reader-toc-caret{color:var(--gold);font-size:12px;display:none}.reader-toc-section{margin-bottom:4px}.reader-toc-section-head{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;background:rgba(208,172,83,0.08);border:none;border-left:2px solid var(--gold);border-radius:6px;padding:6px 8px;margin:10px 0 4px;font-size:12px;font-weight:700;color:var(--gold);letter-spacing:0.5px;cursor:pointer;font-family:inherit;text-align:left}.reader-toc-section-head:hover{background:rgba(208,172,83,0.16)}.reader-toc-section:first-child .reader-toc-section-head{margin-top:4px}.reader-toc-section-caret{font-size:10px;transition:transform 0.15s ease}.reader-toc-section-items{display:none}.reader-toc-section.open .reader-toc-section-items{display:block}.reader-toc-section.open .reader-toc-section-caret{transform:rotate(180deg)}.reader-toc-item{display:block;padding:8px 10px;border-radius:6px;margin-bottom:2px;font-size:13px;color:var(--text);text-decoration:none;line-height:1.5;border-left:2px solid transparent}.reader-toc-item:hover{background:rgba(255,255,255,0.04);color:var(--text-bright)}.reader-toc-item.current{background:rgba(61,139,255,0.14);color:var(--accent);border-left-color:var(--accent);font-weight:600}.reader-toc-item-sub{color:var(--text-dim);font-size:11px}.reader-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px}.reader-toolbar-left{display:flex;align-items:center;gap:6px;flex-wrap:wrap}.reader-toolbar-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.reader-tool-link{color:var(--text-dim);text-decoration:none;font-size:13px;padding:4px 10px;border:1px solid var(--border-light);border-radius:6px;white-space:nowrap}.reader-tool-link:hover{color:var(--gold);border-color:var(--gold)}.reader-react-btn{background:transparent;border:1px solid var(--border-light);color:var(--text-dim);border-radius:6px;padding:4px 12px;font-size:13px;cursor:pointer;font-family:inherit;display:inline-flex;align-items:center;gap:5px;white-space:nowrap}.reader-react-btn:hover{border-color:var(--accent);color:var(--accent)}.reader-react-btn.active{border-color:var(--gold);color:var(--gold);background:var(--gold-dim)}.react-count{font-variant-numeric:tabular-nums}.reader-font-btn{background:transparent;border:1px solid var(--border-light);color:var(--text-dim);border-radius:6px;padding:4px 12px;cursor:pointer;font-size:13px;font-family:inherit}.reader-font-btn:hover{border-color:var(--accent);color:var(--accent)}.reader-title{font-size:26px;font-weight:700;color:var(--text-bright);line-height:1.4;margin:0 0 10px}.reader-subtitle{font-size:13px;color:var(--text-dim);letter-spacing:1px;margin-bottom:8px}.reader-anchor{font-size:14px;color:var(--gold);font-style:italic;text-align:center;margin:4px 0 22px}.reader-cover-wrap{margin:6px 0 22px;border-radius:10px;overflow:hidden;border:1px solid var(--border-light);background:rgba(0,0,0,0.10)}.reader-cover{display:block;width:100%;height:auto}.reader-nav{display:flex;justify-content:space-between;gap:12px;margin-top:32px;padding-top:16px;border-top:1px solid var(--border-light)}.reader-nav-link{color:var(--accent);text-decoration:none;font-size:14px;max-width:46%}.reader-nav-link:hover{color:var(--gold);text-decoration:underline}.reader-nav-link.right{text-align:right}.reader-gate{margin-top:10px}.reader-gate-summary{font-size:15px;line-height:2.0;color:var(--text);background:rgba(0,0,0,0.15);border:1px solid var(--border-light);border-radius:10px;padding:18px 20px}.reader-gate-cta{margin-top:22px;text-align:center;color:var(--text-dim);font-size:14px}.reader-gate-btn{display:inline-block;margin:0 6px;padding:9px 28px;border:1px solid var(--border-light);border-radius:6px;color:var(--text);text-decoration:none;font-size:14px}.reader-gate-btn:hover{border-color:var(--accent);color:var(--accent)}.reader-gate-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.reader-gate-btn.primary:hover{opacity:0.9;color:#fff}.reader-comments-side{grid-column:3;grid-row:1 / -1;justify-self:end;width:300px;position:sticky;top:76px;height:calc(100vh - 96px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border-light) transparent;border:1px solid var(--border);border-radius:10px;padding:14px;background:linear-gradient(180deg,var(--surface) 0%,var(--bg) 100%)}.reader-comments-head{display:flex;align-items:baseline;gap:10px;margin-bottom:12px}.reader-comments-title{font-size:15px;font-weight:700;color:var(--text-bright);padding-left:10px;border-left:3px solid var(--accent)}.reader-comments-count{font-size:12px;color:var(--text-dim)}.reader-comment-hook{font-size:12px;line-height:1.7;color:var(--gold);background:var(--gold-dim);border:1px solid rgba(208,172,83,0.3);border-radius:8px;padding:10px 12px;margin-bottom:14px}.reader-comment-form{margin-bottom:16px}.reader-comment-input{width:100%;box-sizing:border-box;min-height:72px;resize:vertical;background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--text);padding:10px 12px;font-size:14px;font-family:inherit;line-height:1.6}.reader-comment-input:focus{outline:none;border-color:var(--accent)}.reader-comment-form-actions{display:flex;align-items:center;justify-content:space-between;margin-top:8px}.reader-comment-reply-hint{font-size:12px;color:var(--gold)}.reader-comment-submit{background:var(--accent);border:none;color:#fff;border-radius:6px;padding:7px 18px;font-size:13px;cursor:pointer;font-family:inherit}.reader-comment-submit:hover{opacity:0.9}.reader-comment-item{padding:12px 0;border-bottom:1px solid var(--border)}.reader-comment-item:last-child{border-bottom:none}.reader-comment-meta{display:flex;align-items:baseline;gap:10px;margin-bottom:6px}.reader-comment-author{font-size:13px;font-weight:600;color:var(--text-bright)}.reader-comment-time{font-size:12px;color:var(--text-dim)}.reader-comment-content{font-size:14px;line-height:1.7;color:var(--text);white-space:pre-wrap;word-break:break-word}.reader-comment-actions{margin-top:6px;font-size:12px}.reader-comment-actions a{color:var(--text-dim);cursor:pointer;margin-right:14px;text-decoration:none}.reader-comment-actions a:hover{color:var(--accent)}.reader-comment-replies{margin-left:8px;padding-left:10px;border-left:2px solid var(--border);margin-top:8px}.reader-comment-empty{color:var(--text-dim);font-size:13px;text-align:center;padding:20px 0}@media (max-width:1500px){.reader-layout{grid-template-columns:minmax(0,1fr) minmax(0,720px) minmax(0,1fr);gap:32px;max-width:1480px;margin:0 auto}.reader-toc{grid-column:1;justify-self:end;width:280px}.reader-main{grid-column:2}.reader-comments-side{grid-column:2;grid-row:auto;position:static;height:auto;max-height:none;overflow:visible;width:auto;justify-self:stretch}}@media (max-width:768px){.reader-layout{grid-template-columns:1fr;gap:20px;padding:20px 16px 40px}.reader-toc{grid-column:1;grid-row:auto;justify-self:stretch;width:auto;position:static;height:auto;max-height:none;overflow:visible}.reader-main{grid-column:1}.reader-comments-side{grid-column:1;grid-row:auto;position:static;height:auto;max-height:none;overflow:visible;width:auto;justify-self:stretch}.reader-toc-caret{display:inline-block}.reader-toc-toggle{cursor:pointer}.reader-toc.collapsed .reader-toc-body{display:none}}.share-overlay{position:fixed;inset:0;background:rgba(3,10,20,0.65);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}.share-panel{width:460px;max-width:100%;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:22px 24px;box-shadow:0 12px 40px rgba(0,0,0,0.45)}.share-panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.share-panel-head span{font-size:16px;font-weight:600;color:var(--text-bright)}.share-close{background:none;border:none;color:var(--text-dim);font-size:24px;line-height:1;cursor:pointer;padding:0 2px}.share-close:hover{color:var(--text-bright)}.share-title{font-size:14px;color:var(--text);margin-bottom:12px;line-height:1.5}.share-url-row{display:flex;gap:8px;margin-bottom:16px}.share-url-input{flex:1;min-width:0;background:var(--bg);border:1px solid var(--border);color:var(--text);border-radius:6px;padding:9px 12px;font-size:14px}.share-copy-btn{flex-shrink:0;background:var(--gold);border:none;color:#06182e;border-radius:6px;padding:0 16px;font-size:13px;font-weight:600;cursor:pointer}.share-copy-btn:hover{opacity:0.9}.share-qr{display:flex;justify-content:center;padding:6px;background:#fff;border-radius:8px}.share-qr svg{display:block;margin:0 auto}.share-tip{text-align:center;font-size:12px;color:var(--text-dim);margin-top:12px}