*,*:before,*:after{box-sizing:border-box}:root{--bg: #070b12;--bg-glow-1: rgba(38, 108, 255, .16);--bg-glow-2: rgba(0, 200, 180, .1);--sidebar-bg: linear-gradient(180deg, rgba(19, 30, 49, .94), rgba(8, 13, 22, .96));--panel: rgba(20, 31, 50, .72);--panel-solid: #101a2b;--panel-hover: rgba(38, 60, 96, .55);--line: rgba(122, 163, 224, .16);--line-strong: rgba(122, 163, 224, .28);--text: #e9eefb;--text-2: #a2b2cd;--text-3: #6d7f9b;--accent: #4c9aff;--accent-2: #45d9c4;--accent-grad: linear-gradient(135deg, #4c9aff, #45d9c4);--accent-soft: rgba(76, 154, 255, .14);--danger: #ff6b81;--danger-soft: rgba(255, 107, 129, .14);--star: #ffc85c;--code-bg: #0b1422;--code-line: rgba(122, 163, 224, .14);--shadow-sm: 0 2px 10px rgba(0, 0, 0, .28);--shadow-lg: 0 24px 60px rgba(0, 0, 0, .55);--radius-xl: 20px;--radius-lg: 16px;--radius: 12px;--radius-sm: 9px;--read-size: 17px;--read-lh: 1.88;--read-width: 48rem;--sidebar-w: 320px;--topbar-h: 64px;--ease: cubic-bezier(.22, .61, .36, 1)}[data-theme=light]{--bg: #edf1f7;--bg-glow-1: rgba(37, 99, 235, .1);--bg-glow-2: rgba(13, 148, 136, .08);--sidebar-bg: linear-gradient(180deg, rgba(255, 255, 255, .97), rgba(248, 250, 253, .98));--panel: rgba(255, 255, 255, .9);--panel-solid: #ffffff;--panel-hover: rgba(37, 99, 235, .07);--line: rgba(15, 23, 42, .09);--line-strong: rgba(15, 23, 42, .16);--text: #0f172a;--text-2: #4b5b73;--text-3: #8493a6;--accent: #2563eb;--accent-2: #0d9488;--accent-grad: linear-gradient(135deg, #2563eb, #0d9488);--accent-soft: rgba(37, 99, 235, .08);--danger: #d93a54;--danger-soft: rgba(217, 58, 84, .08);--star: #dd9a12;--code-bg: #f7f9fc;--code-line: rgba(15, 23, 42, .09);--shadow-sm: 0 1px 2px rgba(15, 23, 42, .04), 0 6px 18px rgba(15, 23, 42, .05);--shadow-lg: 0 18px 44px rgba(15, 23, 42, .14)}html,body{height:100%}body{margin:0;background-color:var(--bg);background-image:radial-gradient(1100px 620px at 12% -8%,var(--bg-glow-1),transparent 62%),radial-gradient(900px 560px at 96% 4%,var(--bg-glow-2),transparent 58%);background-attachment:fixed;color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,PingFang SC,Hiragino Sans GB,Microsoft YaHei,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;overflow:hidden;overscroll-behavior:none}button,input{font:inherit;color:inherit}button{cursor:pointer;border:0;background:none;-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}a{color:var(--accent)}svg[viewBox="0 0 24 24"]{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.svg-sprite{position:absolute;width:0;height:0;overflow:hidden}::selection{background:#4c9aff4d}*{scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{background:var(--line-strong);border-radius:99px;border:3px solid transparent;background-clip:content-box}*::-webkit-scrollbar-thumb:hover{background:var(--text-3);background-clip:content-box}*::-webkit-scrollbar-track{background:transparent}.app{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,1fr);height:100vh;height:100dvh;overflow:hidden}.main{position:relative;display:flex;flex-direction:column;min-width:0;min-height:0;overflow:hidden}.sidebar{position:relative;z-index:30;display:flex;flex-direction:column;min-height:0;padding:18px 14px 12px;background:var(--sidebar-bg);border-right:1px solid var(--line);backdrop-filter:blur(22px) saturate(140%);-webkit-backdrop-filter:blur(22px) saturate(140%)}.brand{display:flex;align-items:center;gap:10px;padding:0 6px 16px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:var(--accent-grad);color:#06111f;box-shadow:0 8px 22px #4c9aff52;flex:none}.brand-mark svg{width:20px;height:20px;stroke-width:2}.brand-text{display:flex;flex-direction:column;min-width:0;line-height:1.3}.brand-text strong{font-size:15px;letter-spacing:.2px}.brand-text span{font-size:11.5px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar .sidebar-close{display:none;margin-left:auto}.upload-btn{display:flex;align-items:center;justify-content:center;gap:9px;width:100%;min-height:46px;padding:12px 16px;border-radius:var(--radius);background:var(--accent-grad);color:#05101d;font-weight:600;font-size:14px;letter-spacing:.2px;box-shadow:0 10px 26px #4c9aff42;transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s}.upload-btn svg{width:18px;height:18px;stroke-width:2.2}.upload-btn:hover{filter:brightness(1.06);transform:translateY(-1px)}.upload-btn:active{transform:translateY(0) scale(.99)}.search-box{display:flex;align-items:center;gap:8px;margin-top:14px;padding:0 10px;height:42px;border-radius:var(--radius);background:#0a121e6b;border:1px solid var(--line);transition:border-color .16s,background .16s}[data-theme=light] .search-box{background:#ffffffb3}.search-box:focus-within{border-color:var(--line-strong);background:var(--panel-hover)}.search-box svg{width:17px;height:17px;color:var(--text-3);flex:none}.search-box input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:13.5px}.search-box input::placeholder{color:var(--text-3)}.search-box input::-webkit-search-cancel-button{-webkit-appearance:none}.search-box kbd{padding:1px 6px;font-size:11px;font-family:inherit;color:var(--text-3);border:1px solid var(--line);border-radius:5px}.search-box:focus-within kbd{opacity:0}.chips{display:flex;gap:6px;margin:12px 2px 6px;overflow-x:auto;scrollbar-width:none}.chips::-webkit-scrollbar{display:none}.chip{flex:none;padding:6px 12px;border-radius:99px;font-size:12.5px;color:var(--text-2);border:1px solid transparent;transition:all .16s;white-space:nowrap}.chip:hover{color:var(--text);background:var(--panel-hover)}.chip.is-active{color:var(--accent);background:var(--accent-soft);border-color:#4c9aff52;font-weight:600}.doc-list{flex:1;min-height:0;margin:4px -6px 0;padding:0 6px 8px;overflow-y:auto;overscroll-behavior:contain}.doc-item{position:relative;display:flex;gap:10px;align-items:flex-start;padding:11px 10px 12px 12px;border-radius:var(--radius);border:1px solid transparent;cursor:pointer;transition:background .16s,border-color .16s,transform .16s;margin-bottom:3px;overflow:hidden}.doc-item:hover{background:var(--panel-hover)}.doc-item:active{transform:scale(.995)}.doc-item.is-active{background:linear-gradient(100deg,var(--accent-soft),rgba(69,217,196,.06));border-color:#4c9aff3d}.doc-item.is-active:before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:var(--accent-grad)}.doc-main{flex:1;min-width:0}.doc-name{display:block;font-size:13.5px;font-weight:600;color:var(--text);line-height:1.45;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;padding-right:18px}.doc-sub{display:flex;align-items:center;gap:6px;margin-top:4px;font-size:11.5px;color:var(--text-3);white-space:nowrap;overflow:hidden}.doc-sub .sep{width:3px;height:3px;border-radius:50%;background:currentColor;opacity:.55;flex:none}.doc-sub .resume{color:var(--accent-2);font-weight:600}.doc-bar{height:3px;margin-top:8px;border-radius:99px;background:#7aa3e029;overflow:hidden}.doc-bar>i{display:block;height:100%;border-radius:inherit;background:var(--accent-grad);transition:width .4s var(--ease)}.doc-item.is-done .doc-bar>i{background:linear-gradient(90deg,#45d9c4,#4c9aff)}.doc-flag{display:flex;align-items:center;gap:4px;flex:none}.doc-flag .mini{display:grid;place-items:center;width:22px;height:22px;border-radius:7px;color:var(--text-3)}.doc-flag .mini svg{width:14px;height:14px}.doc-item .star-on{color:var(--star)}.doc-item .star-on svg{fill:currentColor;fill-opacity:.28}.doc-item .share-on{color:var(--accent-2)}.doc-item .mini:hover{background:#7aa3e024;color:var(--text)}.list-empty{padding:26px 12px;text-align:center;font-size:13px;color:var(--text-3)}.sidebar-foot{display:flex;align-items:center;gap:6px;padding:10px 4px 2px;border-top:1px solid var(--line);font-size:11.5px;color:var(--text-3)}.sidebar-foot>span{flex:1;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.foot-actions{display:flex;align-items:center;gap:2px;flex:none}.foot-btn{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;color:var(--text-3);transition:background .15s,color .15s}.foot-btn:hover{background:var(--panel-hover);color:var(--text)}.foot-btn svg{width:16px;height:16px}.topbar{position:relative;z-index:20;display:flex;align-items:center;gap:10px;flex:none;height:var(--topbar-h);padding:0 14px 0 20px;background:linear-gradient(180deg,#090f19e6,#090f199e);border-bottom:1px solid var(--line);backdrop-filter:blur(18px) saturate(140%);-webkit-backdrop-filter:blur(18px) saturate(140%)}[data-theme=light] .topbar{background:linear-gradient(180deg,#ffffffeb,#ffffffb8)}[data-theme=light] .upload-btn,[data-theme=light] .welcome-btn,[data-theme=light] .btn.primary,[data-theme=light] .brand-mark{color:#fff}[data-theme=light] .md-body input[type=checkbox]:checked:after{border-color:#fff}.doc-head{flex:1;min-width:0}.title-line{display:flex;align-items:center;gap:8px;min-width:0}.doc-head h1{margin:0;font-size:15.5px;font-weight:650;letter-spacing:.2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.doc-meta{margin-top:2px;font-size:11.5px;color:var(--text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{flex:none;padding:2px 8px;border-radius:99px;font-size:10.5px;font-weight:600;letter-spacing:.3px;color:var(--accent-2);background:#45d9c41f;border:1px solid rgba(69,217,196,.3)}.actions{display:flex;align-items:center;gap:4px;flex:none}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:10px;color:var(--text-2);transition:background .15s,color .15s,transform .15s}.icon-btn:hover{background:var(--panel-hover);color:var(--text)}.icon-btn:active{transform:scale(.94)}.icon-btn.is-on{color:var(--accent);background:var(--accent-soft)}.icon-btn[disabled]{opacity:.35;pointer-events:none}.icon-btn svg{width:19px;height:19px}#btnStar.is-star{color:var(--star)}#btnStar.is-star svg{fill:currentColor;fill-opacity:.3}.font-group{display:flex;align-items:center;height:34px;border-radius:10px;border:1px solid var(--line);overflow:hidden}.font-group button{width:38px;height:100%;font-size:12px;letter-spacing:.3px;color:var(--text-2);transition:background .15s,color .15s}.font-group button:hover{background:var(--panel-hover);color:var(--text)}.font-group button+button{border-left:1px solid var(--line)}.progress-track{position:absolute;left:0;right:0;bottom:-1px;height:2px;background:transparent;overflow:hidden}.progress-track>i{display:block;width:0;height:100%;background:var(--accent-grad);box-shadow:0 0 12px #4c9aff99;transition:width .15s linear}.reader{position:relative;flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;overscroll-behavior-y:contain;-webkit-overflow-scrolling:touch;scroll-behavior:smooth}.reader.no-smooth{scroll-behavior:auto}.md-body{width:100%;max-width:var(--read-width);margin:0 auto;padding:40px clamp(18px,5vw,44px) 72px;font-size:var(--read-size);line-height:var(--read-lh);color:var(--text);word-wrap:break-word;overflow-wrap:break-word}.md-body>*:first-child{margin-top:0}.md-body>*:last-child{margin-bottom:0}.md-body h1,.md-body h2,.md-body h3,.md-body h4,.md-body h5,.md-body h6{position:relative;margin:1.9em 0 .7em;font-weight:680;line-height:1.32;letter-spacing:.2px;scroll-margin-top:12px}.md-body h1{margin-top:.4em;font-size:1.86em;letter-spacing:.4px;background:var(--accent-grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}.md-body h2{padding-bottom:.36em;font-size:1.42em;border-bottom:1px solid var(--line)}.md-body h2:before{content:"";position:absolute;left:-.72em;top:.28em;bottom:.36em;width:3px;border-radius:3px;background:var(--accent-grad)}.md-body h3{font-size:1.18em}.md-body h4{font-size:1.04em;color:var(--text-2)}.md-body h5,.md-body h6{font-size:.96em;color:var(--text-2);text-transform:none}.heading-anchor{margin-left:.35em;font-size:.72em;font-weight:400;color:var(--accent);-webkit-text-fill-color:var(--accent);opacity:0;text-decoration:none;transition:opacity .15s}.md-body :is(h1,h2,h3,h4):hover .heading-anchor{opacity:.7}.md-body p{margin:0 0 1.05em}.md-body a{color:var(--accent);text-decoration:none;border-bottom:1px solid rgba(76,154,255,.35);transition:border-color .15s,color .15s}.md-body a:hover{border-bottom-color:var(--accent)}.md-body strong{font-weight:680;color:var(--text)}.md-body em{color:var(--text-2)}.md-body del{color:var(--text-3)}.md-body ul,.md-body ol{margin:0 0 1.05em;padding-left:1.45em}.md-body li{margin:.34em 0}.md-body li::marker{color:var(--accent)}.md-body li>ul,.md-body li>ol{margin:.34em 0}.md-body li>p{margin:0 0 .5em}.md-body .task-list-item{list-style:none;margin-left:-1.3em;padding-left:1.3em}.md-body input[type=checkbox]{-webkit-appearance:none;-moz-appearance:none;appearance:none;position:relative;display:inline-block;width:16px;height:16px;margin:0 .55em 0 0;vertical-align:-3px;border:1.5px solid var(--line-strong);border-radius:5px;background:var(--panel-solid);opacity:1;transition:background .15s,border-color .15s}.md-body input[type=checkbox]:checked{background:var(--accent-grad);border-color:transparent}.md-body input[type=checkbox]:checked:after{content:"";position:absolute;left:4px;top:.5px;width:4.5px;height:8.5px;border:solid #04121f;border-width:0 2px 2px 0;transform:rotate(42deg)}.md-body blockquote{margin:1.2em 0;padding:.85em 1.1em;border-left:3px solid transparent;border-image:linear-gradient(180deg,var(--accent),var(--accent-2)) 1;border-radius:0 12px 12px 0;background:linear-gradient(100deg,var(--accent-soft),transparent 80%);color:var(--text-2)}.md-body blockquote>*:last-child{margin-bottom:0}.md-body hr{margin:2.2em 0;border:0;height:1px;background:linear-gradient(90deg,transparent,var(--line-strong),transparent)}.md-body code{padding:.16em .42em;font-family:SFMono-Regular,ui-monospace,Consolas,JetBrains Mono,Menlo,monospace;font-size:.87em;background:var(--code-bg);border:1px solid var(--code-line);border-radius:6px;color:#7fd3ff;word-break:break-word}[data-theme=light] .md-body code{color:#0b62c4}.md-body pre{position:relative;margin:1.3em 0;padding:16px 18px;border-radius:var(--radius);background:var(--code-bg);border:1px solid var(--code-line);overflow-x:auto;box-shadow:inset 0 1px #ffffff08}.md-body pre code{display:block;padding:0;border:0;background:none;font-size:.84em;line-height:1.72;color:var(--text);white-space:pre;word-break:normal}.copy-btn{position:absolute;top:8px;right:8px;display:inline-flex;align-items:center;gap:4px;padding:5px 9px;font-size:11px;color:var(--text-2);background:var(--panel-solid);border:1px solid var(--line);border-radius:7px;opacity:0;transition:opacity .16s,color .16s}.md-body pre:hover .copy-btn,.copy-btn:focus-visible{opacity:1}.copy-btn:hover{color:var(--accent)}.copy-btn.done{color:var(--accent-2);opacity:1}.mermaid-diagram{margin:1.3em 0;padding:18px;border-radius:var(--radius);border:1px solid var(--code-line);background:var(--code-bg);overflow-x:auto;text-align:center}.mermaid-diagram>svg{display:block;width:100%;max-width:100%;height:auto;margin:0 auto}.md-body pre.mermaid-error{border-color:var(--danger)}.mermaid-error-note{margin:-.6em 0 1.2em;color:var(--danger);font-size:.85em}.hljs-comment,.hljs-quote{color:#647a99;font-style:italic}.hljs-keyword,.hljs-selector-tag,.hljs-literal,.hljs-type{color:#ff7ab6}.hljs-string,.hljs-doctag,.hljs-regexp,.hljs-addition{color:#8fe388}.hljs-number,.hljs-symbol,.hljs-bullet{color:#ffc85c}.hljs-title,.hljs-section,.hljs-name,.hljs-selector-id,.hljs-selector-class{color:#68b8ff}.hljs-attr,.hljs-attribute,.hljs-variable,.hljs-template-variable{color:#f5a66a}.hljs-built_in,.hljs-class .hljs-title{color:#45d9c4}.hljs-meta,.hljs-link{color:#9d8bff}.hljs-deletion{color:var(--danger)}[data-theme=light] .hljs-comment,[data-theme=light] .hljs-quote{color:#7a8aa0}[data-theme=light] .hljs-keyword,[data-theme=light] .hljs-selector-tag,[data-theme=light] .hljs-literal,[data-theme=light] .hljs-type{color:#c0378f}[data-theme=light] .hljs-string,[data-theme=light] .hljs-doctag,[data-theme=light] .hljs-regexp,[data-theme=light] .hljs-addition{color:#12805c}[data-theme=light] .hljs-number,[data-theme=light] .hljs-symbol,[data-theme=light] .hljs-bullet{color:#a06800}[data-theme=light] .hljs-title,[data-theme=light] .hljs-section,[data-theme=light] .hljs-name{color:#1f5fd0}.md-body .table-wrap{margin:1.3em 0;overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius);-webkit-overflow-scrolling:touch}.md-body table{width:100%;border-collapse:collapse;font-size:.9em;min-width:320px}.md-body th,.md-body td{padding:9px 14px;text-align:left;border-bottom:1px solid var(--line)}.md-body th{background:#4c9aff14;font-weight:640;font-size:.94em;white-space:nowrap}.md-body tbody tr:last-child td{border-bottom:0}.md-body tbody tr:hover td{background:#7aa3e00d}.md-body img{max-width:100%;height:auto;border-radius:var(--radius);border:1px solid var(--line);display:block;margin:1.2em auto;cursor:zoom-in}.md-body kbd{padding:.1em .42em;font-size:.82em;font-family:inherit;border-radius:5px;border:1px solid var(--line-strong);border-bottom-width:2px;background:var(--panel-solid)}.md-body sup>a{border:0}.read-foot{max-width:var(--read-width);margin:0 auto;padding:0 clamp(18px,5vw,44px) 56px}.read-foot-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);font-size:12.5px;color:var(--text-3)}.read-foot button{flex:none;padding:7px 12px;border-radius:8px;border:1px solid var(--line);color:var(--text-2);font-size:12px;transition:all .15s}.read-foot button:hover{color:var(--accent);border-color:var(--line-strong)}@media (min-width: 1025px){[data-theme=light] .md-body{margin-top:26px;margin-bottom:6px;padding:46px 52px 58px;background:#fff;border:1px solid rgba(15,23,42,.08);border-radius:18px;box-shadow:0 1px 2px #0f172a0a,0 14px 34px #0f172a12}[data-theme=light] .reader{padding-bottom:34px}}.welcome{display:grid;place-items:center;min-height:100%;padding:32px 20px 48px}.welcome-inner{width:min(560px,100%);text-align:center;padding:36px 28px 30px;border-radius:var(--radius-xl);border:1px solid var(--line);background:radial-gradient(140% 120% at 50% 0%,rgba(76,154,255,.12),transparent 60%),var(--panel);box-shadow:var(--shadow-sm)}.welcome-icon{display:grid;place-items:center;width:58px;height:58px;margin:0 auto 16px;border-radius:18px;background:var(--accent-soft);border:1px solid rgba(76,154,255,.28);color:var(--accent)}.welcome-icon svg{width:26px;height:26px}.welcome h2{margin:0 0 8px;font-size:19px;letter-spacing:.3px}.welcome p{margin:0 auto;max-width:430px;font-size:13.5px;line-height:1.75;color:var(--text-2)}.welcome p code{padding:1px 5px;border-radius:5px;background:var(--code-bg);border:1px solid var(--code-line);font-size:.88em}.welcome-btn{display:inline-flex;align-items:center;gap:8px;margin-top:20px;padding:11px 20px;border-radius:11px;background:var(--accent-grad);color:#05101d;font-weight:640;font-size:13.5px;box-shadow:0 10px 24px #4c9aff47;transition:transform .18s var(--ease),filter .18s}.welcome-btn svg{width:17px;height:17px;stroke-width:2.2}.welcome-btn:hover{transform:translateY(-1px);filter:brightness(1.06)}.welcome-points{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin:24px 0 0;padding:0;list-style:none}.welcome-points li{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border-radius:99px;border:1px solid var(--line);background:#7aa3e00d;font-size:11.5px;color:var(--text-2)}.welcome-points svg{width:13px;height:13px;color:var(--accent-2)}.welcome-hint{margin-top:18px;font-size:11.5px;color:var(--text-3)}.toc-drawer{position:fixed;top:0;right:0;bottom:0;z-index:60;display:flex;flex-direction:column;width:min(320px,86vw);padding:16px 14px calc(16px + env(safe-area-inset-bottom));background:var(--sidebar-bg);border-left:1px solid var(--line);box-shadow:var(--shadow-lg);backdrop-filter:blur(24px) saturate(150%);-webkit-backdrop-filter:blur(24px) saturate(150%);transform:translate(102%);transition:transform .28s var(--ease);visibility:hidden}.toc-drawer.is-open{transform:none;visibility:visible}.toc-head{display:flex;align-items:center;justify-content:space-between;padding:2px 4px 12px;border-bottom:1px solid var(--line)}.toc-head strong{font-size:13.5px;letter-spacing:.4px}.toc-list{flex:1;min-height:0;overflow-y:auto;padding:10px 0;overscroll-behavior:contain}.toc-item{display:block;width:100%;text-align:left;padding:8px 10px;border-radius:8px;font-size:13px;line-height:1.5;color:var(--text-2);border-left:2px solid transparent;transition:color .15s,background .15s;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.toc-item:hover{background:var(--panel-hover);color:var(--text)}.toc-item.lv-2{padding-left:22px;font-size:12.5px}.toc-item.lv-3{padding-left:34px;font-size:12px;color:var(--text-3)}.toc-item.is-active{color:var(--accent);background:var(--accent-soft);border-left-color:var(--accent);font-weight:600}.toc-empty{padding:22px 10px;font-size:12.5px;color:var(--text-3);text-align:center}.toc-foot{padding:10px 6px 0;border-top:1px solid var(--line);font-size:11px;color:var(--text-3)}.toc-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:55;background:#03070e8c;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}.toc-scrim.is-open{opacity:1;visibility:visible}.fab{position:fixed;right:22px;bottom:calc(24px + env(safe-area-inset-bottom));z-index:25;display:grid;place-items:center;width:44px;height:44px;border-radius:50%;color:var(--text);background:var(--panel-solid);border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);transition:transform .18s var(--ease),opacity .2s}.fab:hover{transform:translateY(-2px);color:var(--accent)}.scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:25;background:#02060c99;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);opacity:0;visibility:hidden;transition:opacity .25s,visibility .25s}.scrim.is-open{opacity:1;visibility:visible}.drop-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:90;display:grid;place-items:center;background:#040911c7;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);opacity:0;visibility:hidden;transition:opacity .18s,visibility .18s}.drop-overlay.is-open{opacity:1;visibility:visible}.drop-card{display:flex;flex-direction:column;align-items:center;gap:8px;padding:40px 56px;border-radius:var(--radius-xl);border:2px dashed rgba(76,154,255,.5);background:#0c1626e6;color:var(--text)}.drop-card svg{width:34px;height:34px;color:var(--accent);margin-bottom:4px}[data-theme=light] .drop-card{background:#fffffff7}.drop-card strong{font-size:16px}.drop-card span{font-size:12px;color:var(--text-3)}.menu{position:fixed;z-index:70;min-width:180px;padding:6px;border-radius:var(--radius);background:var(--panel-solid);border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);animation:pop .14s var(--ease)}@keyframes pop{0%{opacity:0;transform:scale(.97) translateY(-3px)}}.menu button{display:flex;align-items:center;gap:9px;width:100%;padding:9px 10px;border-radius:8px;font-size:13px;color:var(--text-2);text-align:left;transition:background .14s,color .14s}.menu button svg{width:16px;height:16px}.menu button:hover{background:var(--panel-hover);color:var(--text)}.menu button.danger{color:var(--danger)}.menu button.danger:hover{background:var(--danger-soft)}.menu-sep{height:1px;margin:5px 6px;background:var(--line)}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;display:grid;place-items:center;padding:20px;background:#03070ea8;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fade .16s}@keyframes fade{0%{opacity:0}}.modal-card{width:min(430px,100%);padding:22px 22px 16px;border-radius:var(--radius-lg);background:var(--panel-solid);border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);animation:rise .2s var(--ease)}@keyframes rise{0%{opacity:0;transform:translateY(10px) scale(.985)}}.modal-card h3{margin:0 0 6px;font-size:16px}.modal-desc{margin:0 0 14px;font-size:13px;line-height:1.7;color:var(--text-2);word-break:break-word}.modal-body:empty{display:none}.modal-input{width:100%;padding:10px 12px;border-radius:10px;border:1px solid var(--line-strong);background:var(--code-bg);color:var(--text);outline:0;font-size:14px}.modal-input:focus{border-color:var(--accent)}.share-box{display:flex;gap:8px;margin-bottom:4px}.share-box input{flex:1;min-width:0;padding:10px 12px;border-radius:10px;border:1px solid var(--line-strong);background:var(--code-bg);color:var(--accent);font-size:12.5px;outline:0}.share-note{margin:10px 0 0;font-size:12px;line-height:1.7;color:var(--text-3)}.field-group{display:flex;flex-direction:column;gap:12px}.field-group label{display:flex;flex-direction:column;gap:6px;font-size:12.5px;color:var(--text-2)}.field-tip{margin:12px 0 0;padding:9px 11px;border-radius:9px;font-size:11.5px;line-height:1.7;color:var(--text-3);background:#7aa3e00f;border:1px solid var(--line)}.form-error{margin-top:2px;padding:8px 11px;border-radius:8px;font-size:12px;color:var(--danger);background:var(--danger-soft);border:1px solid rgba(217,58,84,.2);animation:formShake .3s}@keyframes formShake{0%,to{transform:translate(0)}30%{transform:translate(-4px)}65%{transform:translate(3px)}}.modal-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:18px}.btn{padding:9px 16px;border-radius:9px;font-size:13px;font-weight:560;border:1px solid transparent;transition:all .15s}.btn.ghost{color:var(--text-2);border-color:var(--line)}.btn.ghost:hover{color:var(--text);border-color:var(--line-strong)}.btn.primary{background:var(--accent-grad);color:#05101d}.btn.primary:hover{filter:brightness(1.07)}.btn.danger{background:var(--danger);color:#fff}.btn.danger:hover{filter:brightness(1.08)}.btn.text-danger{color:var(--danger);border-color:transparent}.btn.text-danger:hover{background:var(--danger-soft)}.toasts{position:fixed;left:50%;bottom:calc(28px + env(safe-area-inset-bottom));z-index:120;display:flex;flex-direction:column;align-items:center;gap:8px;transform:translate(-50%);pointer-events:none;width:max-content;max-width:min(90vw,460px)}.toast{display:flex;align-items:center;gap:8px;padding:10px 16px;border-radius:99px;font-size:12.5px;color:var(--text);background:#111c2ef5;border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);animation:toastIn .22s var(--ease);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}[data-theme=light] .toast{background:#fffffffa}.toast svg{width:15px;height:15px;color:var(--accent-2);flex:none}.toast.is-error svg{color:var(--danger)}.toast.out{animation:toastOut .24s forwards}@keyframes toastIn{0%{opacity:0;transform:translateY(10px) scale(.96)}}@keyframes toastOut{to{opacity:0;transform:translateY(6px) scale(.97)}}.mode-share .sidebar{display:none}.mode-share .app{grid-template-columns:minmax(0,1fr)}.mode-share .topbar{padding-left:clamp(14px,4vw,28px)}.mode-share .doc-head h1{font-size:14.5px}.share-foot{display:flex;flex-wrap:wrap;align-items:center;gap:8px;justify-content:center;padding:18px 0 0;font-size:11.5px;color:var(--text-3)}.share-foot a{color:var(--accent);text-decoration:none}.share-cta{display:flex;align-items:center;justify-content:center;gap:8px;max-width:var(--read-width);margin:28px auto 0;padding:16px;border-radius:var(--radius);border:1px dashed var(--line-strong);font-size:12.5px;color:var(--text-3);text-align:center}.lightbox{position:fixed;top:0;right:0;bottom:0;left:0;z-index:110;display:grid;place-items:center;padding:24px;background:#02050be6;cursor:zoom-out;animation:fade .18s}.lightbox img{max-width:100%;max-height:100%;border-radius:10px;box-shadow:var(--shadow-lg)}.only-compact{display:none}@media (max-width: 1024px){.app{grid-template-columns:minmax(0,1fr)}.only-compact{display:inline-flex}.sidebar{position:fixed;top:0;left:0;bottom:0;z-index:40;width:min(340px,88vw);padding-top:calc(16px + env(safe-area-inset-top));padding-bottom:calc(12px + env(safe-area-inset-bottom));transform:translate(-102%);transition:transform .28s var(--ease);box-shadow:var(--shadow-lg);visibility:hidden}.sidebar.is-open{transform:none;visibility:visible}.sidebar .sidebar-close{display:inline-flex}.topbar{padding-left:8px;gap:6px}.doc-head h1{font-size:14.5px}.md-body{padding-top:30px}:root{--topbar-h: 60px}}@media (max-width: 560px){:root{--read-size: 16px}.topbar{height:56px;padding-right:8px}.actions{gap:0}.icon-btn{width:36px;height:36px}.font-group{display:none}.mode-share .font-group{display:flex;height:30px}.mode-share .font-group button{width:32px;font-size:11px}#btnStar,#btnShare{display:none!important}.mode-share .badge{display:none}.md-body table{min-width:0}.md-body pre code{white-space:pre-wrap;overflow-wrap:anywhere}.md-body{padding:24px 18px 64px;line-height:1.82}.md-body h1{font-size:1.55em}.md-body h2{font-size:1.28em}.md-body h2:before{display:none}.md-body pre{margin-left:-6px;margin-right:-6px;border-radius:10px;padding:13px 14px}.copy-btn{opacity:1;background:#0a121ecc}[data-theme=light] .copy-btn{background:#ffffffe6}.welcome-inner{padding:28px 18px 24px}.welcome-points{gap:6px}.read-foot{padding:0 18px 40px}.toasts{bottom:calc(18px + env(safe-area-inset-bottom))}.fab{right:14px;bottom:calc(16px + env(safe-area-inset-bottom));width:40px;height:40px}.doc-name{font-size:14px}.doc-item{padding:12px 10px 13px 12px}}@media (hover: none){.copy-btn{opacity:1}.heading-anchor{display:none}}@media (prefers-reduced-motion: reduce){*,*:before,*:after{animation-duration:.001ms!important;transition-duration:.001ms!important}.reader{scroll-behavior:auto}}
