:root{--ink:#1c2d45;--muted:#718096;--line:#e1e7ef;--paper:#fff;--surface:#f2f5f9;--blue:#245de7;--blue-soft:#edf3ff;--green:#25816c;--amber:#8a5e13;--radius:10px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--paper);font-size:14px}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer}button:disabled{cursor:wait;opacity:.5}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible{outline:3px solid #82a6ff;outline-offset:3px}button{color:inherit}a{color:inherit;text-decoration:none}[hidden]{display:none!important}svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.muted{color:var(--muted);font-size:12px}.app-header{height:48px;padding:0 24px;display:flex;align-items:center;gap:20px;border-bottom:1px solid var(--line);background:#fff}.brand{display:flex;align-items:center;gap:12px}.brand strong{font-size:20px;letter-spacing:.5px;white-space:nowrap}.brand-symbol{width:30px;height:32px;position:relative;background:var(--blue);border-radius:8px}.brand-symbol:before,.brand-symbol:after{content:"";position:absolute;background:white;width:14px;height:8px;left:7px;top:7px;border-radius:1px}.brand-symbol:after{top:18px;left:9px}.privacy{margin-left:auto;font-size:12px;color:#5b6d7d;display:flex;align-items:center;gap:7px}.privacy>span{width:6px;height:6px;border-radius:50%;background:var(--green)}.workspace{display:flex;height:calc(100dvh - 48px);min-height:400px}.sidebar{width:268px;min-width:268px;display:flex;flex-direction:column;padding:26px 16px 0;border-right:1px solid var(--line);background:#fbfcfe}.sidebar-heading{display:flex;align-items:center;justify-content:space-between;padding:0 10px 20px}.sidebar-heading h2{font-size:14px;margin:0}.sidebar-empty{padding:24px 12px;color:var(--muted);font-size:13px;line-height:1.9}.outline-line{display:block;height:7px;width:155px;background:#e9edf3;border-radius:4px;margin-bottom:17px}.outline-line.short{width:112px}.sidebar-empty p{margin-top:30px}.sidebar-footer{margin-top:auto;padding:18px 10px;border-top:1px solid var(--line);font-size:11px;color:var(--muted);display:flex;flex-direction:column;gap:8px}.local-label{font-size:10px;letter-spacing:1px;color:#8794a6}#sidebar-content{display:flex;flex-direction:column;min-height:0;flex:1}.search{margin:0 6px 16px;display:flex;align-items:center;gap:8px;border:1px solid var(--line);padding:9px 10px;background:white;border-radius:7px;color:#9aa5b6}.search svg{width:15px;height:15px;flex-shrink:0}.search input{border:0;background:none;width:100%;min-width:0;font-size:12px;outline:none}.search:focus-within{border-color:#82a6ff;box-shadow:0 0 0 2px #e4edff}#outline{overflow:auto;flex:1;padding:2px 2px 16px;scrollbar-width:thin}.outline-item{display:flex;gap:10px;border:0;background:none;text-align:left;width:100%;padding:12px 10px;border-radius:8px;margin-bottom:3px;transition:background .12s}.outline-item:hover{background:#eff2f7}.outline-item.active{background:#e9f0ff;color:#1f51c4}.outline-item .index{font-family:"SFMono-Regular",Consolas,monospace;font-size:10px;padding-top:3px;color:#8d9bb0;min-width:19px}.outline-item.active .index{color:var(--blue)}.outline-item .item-content{flex:1;min-width:0}.outline-item .item-title{display:block;font-size:13px;line-height:1.65;overflow-wrap:anywhere}.outline-item .item-pages{display:block;color:#8190a5;font-size:10px;margin-top:5px;font-variant-numeric:tabular-nums}.outline-item.welfare{border-top:1px solid var(--line);border-radius:0 0 8px 8px;margin-top:8px;padding-top:17px}.review-dot{display:inline-block;width:5px;height:5px;background:#c68c24;border-radius:50%;margin:0 0 2px 6px}.empty-search{text-align:center;padding:20px}.main-area{min-width:0;flex:1;position:relative;background:var(--surface)}.welcome{height:100%;overflow:auto;padding:clamp(35px,6vh,75px) 30px 30px;display:flex;flex-direction:column;align-items:center;justify-content:center}.welcome-copy{text-align:center}.eyebrow{font-size:11px;letter-spacing:1px;color:var(--blue);font-weight:600}.welcome h1{font-family:"Songti SC","Noto Serif CJK SC","STSong",serif;font-size:clamp(29px,3.3vw,43px);font-weight:600;line-height:1.5;letter-spacing:1px;margin:14px 0 15px}.welcome-copy p{font-size:13px;color:var(--muted);line-height:1.9;margin:0 0 28px}.drop-zone{display:flex;flex-direction:column;align-items:center;background:#fff;border:1px dashed #b8c9e2;border-radius:14px;width:100%;max-width:560px;padding:25px 20px 27px;box-shadow:0 6px 22px #1a355009;transition:background .15s,border-color .15s,transform .15s}.drop-zone:hover,.drop-zone.dragging{border-color:var(--blue);background:#fafdff}.drop-zone.dragging{transform:scale(1.015)}.drop-zone strong{font-size:16px;margin:15px 0 9px;font-weight:600}.drop-zone>span:not(.paper-stack){color:var(--blue);font-size:12px}.drop-zone small{font-size:11px;color:#929fb1;margin-top:17px}.paper-stack{height:94px;width:90px;position:relative;display:block}.paper-back{position:absolute;inset:5px 3px 5px 15px;background:#dfe9ff;border:1px solid #bfd0f4;border-radius:5px;transform:rotate(10deg)}.paper-front{position:absolute;inset:0 10px 8px 8px;border:1px solid #b8c9e8;background:#fff;border-radius:5px;text-align:left;box-shadow:0 4px 10px #1e3e6c10}.paper-label{font-family:Consolas,monospace;font-size:10px;color:var(--blue);position:absolute;top:10px;left:10px;letter-spacing:1px}.paper-lines{position:absolute;left:10px;right:12px;top:29px;height:3px;background:#dfe6f1;box-shadow:0 8px #dfe6f1}.paper-lines.lower{top:62px;right:22px}.cut-line{position:absolute;top:49px;left:-10px;right:-11px;border-top:1px dashed #497beb}.plus{position:absolute;bottom:3px;right:-3px;background:var(--blue);color:white;border:3px solid var(--surface);width:28px;height:28px;border-radius:50%;font-size:20px;line-height:20px;font-weight:300}.welcome-foot{display:flex;gap:16px;align-items:center;font-size:11px;color:#8c99ac;margin:23px 0 0}.welcome-foot i{width:3px;height:3px;background:#aebbd0;border-radius:50%}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid #d9e1ec;border-radius:7px;padding:10px 15px;background:#fff;font-size:13px;white-space:nowrap;transition:background .12s}.button:hover{background:#f4f7fc}.button.primary{background:var(--blue);border-color:var(--blue);color:white;box-shadow:0 2px 3px #234dab15}.button.primary:hover{background:#1b4dcb}.button.small{font-size:12px;padding:8px 11px}.text-button{border:0;background:none;font-size:12px;color:var(--blue);padding:6px 7px;border-radius:4px}.text-button:hover{background:var(--blue-soft)}.loading{height:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:30px}.loading h2{font-size:20px;margin:24px 0 0}.loading p{color:var(--muted);font-size:13px;min-height:20px}.spinner{width:30px;height:30px;border:2px solid #dbe5f6;border-top-color:var(--blue);border-radius:50%;animation:spin .8s linear infinite}.small-spinner{width:17px;height:17px;flex-shrink:0}@keyframes spin{to{transform:rotate(360deg)}}progress{width:240px;height:5px;appearance:none;border:0;border-radius:5px;overflow:hidden;background:#dfe7f3;margin:10px 0 20px}progress::-webkit-progress-bar{background:#dfe7f3}progress::-webkit-progress-value{background:var(--blue)}progress::-moz-progress-bar{background:var(--blue)}.reader{height:100%;display:flex;flex-direction:column;min-width:0}.document-bar{display:flex;align-items:center;justify-content:space-between;padding:8px 20px;border-bottom:1px solid var(--line);background:#fff;gap:16px}.document-identity{display:flex;flex-direction:column;gap:2px;min-width:0;flex:1}.document-identity>strong{font-size:17px;font-weight:650;line-height:1.4;overflow-wrap:anywhere;color:var(--ink)}.document-actions{display:flex;gap:8px;flex-shrink:0}.file-meta{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:11px;line-height:1.7;color:var(--muted);font-variant-numeric:tabular-nums}.file-age{background:var(--blue-soft);color:#1749b8;font-size:16px;font-weight:700;line-height:1.4;padding:3px 9px;border-radius:4px;white-space:nowrap}.file-age.future{background:#fff4dd;color:#856327}.reader-toolbar{display:flex;align-items:center;gap:16px;padding:7px 20px;background:white;border-bottom:1px solid var(--line);min-height:48px}.current-info{display:flex;align-items:center;gap:10px;flex:1;min-width:0}.current-info h1{flex:1;min-width:0;font-size:15px;line-height:1.5;margin:0;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.current-info .eyebrow{flex-shrink:0;font-size:10px;letter-spacing:.3px;background:var(--blue-soft);padding:3px 6px;border-radius:4px}.current-info .muted{flex-shrink:0;font-size:11px;white-space:nowrap}.reader-toolbar .button{font-size:12px;padding:8px 12px}.notice{background:#fff8e8;border-bottom:1px solid #f2e4c7;padding:8px 25px;color:#856327;font-size:12px;line-height:1.6;display:flex;align-items:center;justify-content:space-between;gap:15px}.notice .text-button{color:#856327;flex-shrink:0}.viewer-controls{display:flex;justify-content:space-between;align-items:center;padding:5px 20px;color:#687a91;font-size:11px;border-bottom:1px solid #e2e8f0}.viewer-controls>div{display:flex;align-items:center;gap:8px}.viewer-controls label{display:flex;gap:5px;align-items:center}.viewer-controls input{width:48px;border:1px solid #d8e0ec;border-radius:5px;padding:4px 3px;text-align:center;font-size:11px;color:var(--ink);appearance:textfield;background:white}.viewer-controls input::-webkit-inner-spin-button{appearance:none}.zoom-button{font-size:19px;line-height:1;background:none;border:0;width:26px;height:26px;border-radius:4px}.zoom-button:hover{background:#e5ebf6}.viewer-controls .text-button{font-size:10px;padding:4px}.page-scroll{flex:1;overflow:auto;min-height:0;overscroll-behavior:contain;scrollbar-gutter:stable}.pages{padding:12px 28px 48px;min-width:100%;width:max-content;display:flex;flex-direction:column;align-items:center;gap:24px}.page-frame{position:relative;margin:0;flex-shrink:0;width:800px;scroll-margin-top:16px}.page-caption{height:27px;display:flex;align-items:center;gap:10px;font-size:10px;color:#8b98ac;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.page-caption strong{font-size:11px;font-weight:500;color:#60738f}.page-paper{position:relative;width:100%;aspect-ratio:4/3;background:white;box-shadow:0 2px 12px #1a355014;border:1px solid #dde4ee;overflow:hidden}.page-paper canvas{display:block;width:100%;height:100%}.page-placeholder{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#c2ccda;font-family:Consolas,monospace;font-size:12px}.page-error{padding:20px;color:#9a462f;font-size:12px;line-height:1.8}.error-message{font-size:12px;line-height:1.7;color:#ab422e;background:#fff1ed;border:1px solid #f5d5cb;border-radius:7px;padding:10px 14px;max-width:560px}.welcome>.error-message{margin-top:16px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);background:#253950;color:white;border-radius:9px;padding:12px 20px;max-width:min(90vw,600px);box-shadow:0 4px 20px #152c3220;font-size:12px;line-height:1.6;z-index:100}.export-status{position:fixed;bottom:24px;right:24px;background:white;border:1px solid var(--line);box-shadow:0 5px 30px #2136501c;display:flex;gap:12px;align-items:center;padding:13px 18px;border-radius:10px;z-index:90;font-size:12px}dialog{border:1px solid var(--line);border-radius:15px;padding:0;width:min(840px,94vw);max-height:85dvh;color:var(--ink);box-shadow:0 20px 90px #12283e35}dialog::backdrop{background:#182b4650;backdrop-filter:blur(3px)}.dialog-header{display:flex;gap:25px;justify-content:space-between;padding:25px 28px 20px;border-bottom:1px solid var(--line)}.dialog-header h2{font-size:19px;margin:0 0 10px}.dialog-header p{font-size:12px;line-height:1.8;color:var(--muted);margin:0}.close-button{border:0;background:none;font-size:25px;align-self:flex-start;color:#7c8ca1;padding:0 3px}.editor-scroll{max-height:50dvh;overflow:auto;padding:15px 25px}.editor-columns,.editor-row{display:grid;grid-template-columns:minmax(0,1fr) 90px 68px 30px;gap:10px;align-items:center}.editor-columns{font-size:11px;color:var(--muted);padding:0 0 10px}.editor-row{margin-bottom:10px}.editor-row input,.editor-row select{width:100%;min-width:0;border:1px solid #d8e1ef;border-radius:6px;padding:9px 8px;background:white;font-size:12px;color:var(--ink)}.editor-row input:disabled{background:#f0f3f8}.remove-section{border:0;background:none;color:#95a0af;font-size:20px}.remove-section:hover{color:#b2412f}.editor-help{font-size:11px;color:var(--muted);margin:10px 0;line-height:1.7}.add-section{margin-top:8px}.dialog-footer{border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:10px;padding:16px 25px}.dialog-footer .button{font-size:12px}#edit-error{margin:0 25px 15px;max-width:none}#mobile-outline{display:none}
@media(min-width:1600px){.sidebar{width:300px;min-width:300px}.welcome{padding-bottom:80px}}
@media(max-width:900px){.sidebar{width:230px;min-width:230px;padding-left:10px;padding-right:10px}.app-header{padding:0 20px}.reader-toolbar{padding:7px 18px;gap:10px}.document-bar{padding:7px 18px}.current-info h1{font-size:14px}.pages{padding:10px 16px 40px}.welcome-foot{gap:10px;font-size:10px}}
@media(max-width:650px){.app-header{height:48px;padding:0 14px;gap:10px}.brand{gap:8px}.brand strong{font-size:16px}.privacy{font-size:10px}.workspace{height:calc(100dvh - 48px)}.sidebar{display:none;position:absolute;top:48px;bottom:0;left:0;z-index:30;width:260px;box-shadow:12px 0 24px #24395215}.sidebar.open{display:flex}.welcome{padding:30px 22px;justify-content:center}.welcome h1{font-size:32px}.welcome-copy p{font-size:12px}.drop-zone{padding:25px 15px}.welcome-foot{gap:9px;font-size:10px}.reader-toolbar{padding:7px 12px;gap:9px;min-height:58px}.current-info{display:grid;grid-template-columns:auto minmax(0,1fr);gap:3px 6px}.current-info .muted{grid-column:1/-1;font-size:10px}.current-info .eyebrow{font-size:9px;padding:2px 4px}.current-info h1{font-size:14px}.reader-toolbar .primary{padding:9px;font-size:11px}.reader-toolbar .primary svg{display:none}#mobile-outline{display:inline-flex;width:30px;padding:7px 4px;font-size:16px}.document-bar{padding:8px 12px;gap:6px;flex-direction:column;align-items:stretch}.document-identity>strong{font-size:14px}.file-meta{font-size:10px;gap:5px}.document-actions{align-self:flex-end}.document-bar .button{font-size:10px;padding:7px 8px}.document-actions{gap:5px}.viewer-controls{padding:4px 12px}.viewer-controls>div{gap:2px}.viewer-controls .text-button{display:none}.notice{padding:7px 12px;font-size:10px;gap:5px}.notice .text-button{font-size:10px}.pages{padding:8px 10px 36px}.page-frame{scroll-margin-top:10px}.dialog-header{padding:20px 15px}.editor-scroll{padding:12px}.editor-columns,.editor-row{grid-template-columns:minmax(0,1fr) 67px 52px 22px;gap:5px}.editor-row input,.editor-row select{padding:8px 4px;font-size:11px}.dialog-footer{padding:12px}.export-status{bottom:15px;left:15px;right:15px;padding:12px}.brand-symbol{width:28px;height:30px}.privacy>span{width:5px;height:5px}}
@media(prefers-reduced-motion:reduce){*{animation-duration:1.5s!important;transition:none!important;scroll-behavior:auto!important}}

.cache-controls{display:flex;flex-direction:column;align-items:flex-start;gap:4px;font-size:11px;line-height:1.5}.cache-controls .text-button{font-size:11px;padding:0}.cache-controls:has(#cache-status:empty){display:none}