:root{--bg: #f4f5f7;--surface: #ffffff;--line: #e3e5e9;--line2: #eef0f3;--text: #1c1e21;--muted: #6b7280;--accent: #2b6cff;--shadow: 0 1px 3px rgba(16,24,40,.08), 0 1px 2px rgba(16,24,40,.04);--shadow-lg: 0 10px 30px rgba(16,24,40,.12);--hdr-h: 52px;--tool-h: 46px}*{box-sizing:border-box}html,body,#root{height:100%}body{margin:0;font-family:Inter,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}button{font-family:inherit;cursor:pointer}.app{height:100vh;height:100dvh;display:flex;flex-direction:column;overflow:hidden}::-webkit-scrollbar{width:11px;height:11px}::-webkit-scrollbar-thumb{background:#c7ccd4;border-radius:6px;border:2px solid var(--bg)}::-webkit-scrollbar-thumb:hover{background:#aeb4bf}.home{height:100%;overflow-y:auto;padding:40px 28px 60px;max-width:1080px;margin:0 auto;width:100%}.home-top{margin:14px 4px 30px}.brand{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:800;letter-spacing:-.01em}.brand-mark{width:38px;height:38px;border-radius:10px;background:linear-gradient(135deg,#2b6cff,#1aa260);color:#fff;display:grid;place-items:center;font-size:22px;font-weight:800}.brand-sub{color:var(--muted);margin-top:10px;font-size:15px}.mod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:40px}.mod-card{position:relative;text-align:left;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 18px 18px;box-shadow:var(--shadow);transition:transform .12s,box-shadow .12s,border-color .12s;overflow:hidden}.mod-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:var(--accent)}.mod-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent)}.mod-icon{display:grid;place-items:center;width:50px;height:50px;border-radius:12px;background:color-mix(in srgb,var(--accent) 13%,white);color:var(--accent);margin-bottom:14px}.mod-name{font-weight:700;font-size:16.5px}.mod-desc{color:var(--muted);font-size:13px;margin-top:3px}.mod-new{display:inline-flex;align-items:center;gap:4px;margin-top:16px;font-size:13px;font-weight:600;color:var(--accent)}.recent h2{font-size:17px;font-weight:700;margin:0 4px 14px}.muted{color:var(--muted);padding:6px 4px;font-size:14px}.recent-list{display:flex;flex-direction:column;gap:2px}.recent-row{display:flex;align-items:center;gap:14px;padding:11px 12px;border-radius:10px;cursor:pointer}.recent-row:hover{background:var(--surface);box-shadow:var(--shadow)}.recent-ic{width:38px;height:38px;border-radius:9px;background:var(--line2);display:grid;place-items:center;flex-shrink:0}.recent-meta{flex:1;min-width:0}.recent-meta .t{font-weight:600;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recent-meta .s{color:var(--muted);font-size:12.5px}.recent-del{opacity:0;border:none;background:none;color:var(--muted);padding:7px;border-radius:7px}.recent-row:hover .recent-del{opacity:1}.recent-del:hover{background:#fde8e8;color:#e0413e}.editor{height:100%;display:flex;flex-direction:column;overflow:hidden;background:var(--bg)}.doc-header{height:var(--hdr-h);flex-shrink:0;display:flex;align-items:center;gap:12px;padding:0 14px;background:var(--surface);border-bottom:1px solid var(--line)}.dh-back{width:34px;height:34px;border-radius:8px;border:none;background:var(--line2);color:var(--text);display:grid;place-items:center;flex-shrink:0}.dh-back:hover{background:var(--line)}.dh-name{border:1px solid transparent;background:transparent;font-size:15px;font-weight:600;color:var(--text);padding:6px 8px;border-radius:7px;min-width:120px;max-width:320px}.dh-name:hover{border-color:var(--line)}.dh-name:focus{outline:none;border-color:var(--accent);background:#fff}.dh-name.static{font-weight:700}.dh-saved{font-size:12.5px;color:var(--muted);display:inline-flex;align-items:center;gap:4px}.dh-saved.on{color:#1aa260}.dh-actions{margin-left:auto;display:flex;align-items:center;gap:8px}.btn{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:8px;padding:8px 13px;font-size:13.5px;font-weight:600}.btn:hover{background:var(--line2)}.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn.primary:hover{filter:brightness(.95)}.btn:disabled{opacity:.5;cursor:default}.toolbar{height:var(--tool-h);flex-shrink:0;display:flex;align-items:center;gap:3px;padding:0 12px;background:var(--surface);border-bottom:1px solid var(--line);overflow-x:auto}.tb{width:34px;height:34px;border:none;background:none;color:#41464d;border-radius:7px;display:grid;place-items:center;flex-shrink:0}.tb:hover{background:var(--line2)}.tb.on{background:color-mix(in srgb,var(--accent) 16%,white);color:var(--accent)}.tb-sep{width:1px;height:22px;background:var(--line);margin:0 5px;flex-shrink:0}.tb-sel{height:34px;border:1px solid var(--line);border-radius:7px;background:#fff;font-size:13px;padding:0 6px;color:var(--text);flex-shrink:0}.tb-color{width:34px;height:34px;border:none;background:none;padding:5px;border-radius:7px}.tb-color:hover{background:var(--line2)}.writer-scroll{flex:1;overflow-y:auto;padding:28px 16px 80px}.page{background:#fff;width:100%;max-width:820px;min-height:1000px;margin:0 auto;padding:64px 72px;box-shadow:var(--shadow-lg);border-radius:3px}.page:focus{outline:none}.page p{margin:0 0 10px}.page h1{font-size:28px;margin:6px 0 12px}.page h2{font-size:22px;margin:6px 0 10px}.page h3{font-size:18px;margin:6px 0 8px}.page table{border-collapse:collapse;margin:10px 0}.page td,.page th{border:1px solid #b9bfc8;padding:6px 10px;min-width:50px}.page img{max-width:100%}.writer-foot{height:30px;flex-shrink:0;display:flex;align-items:center;gap:18px;padding:0 16px;background:var(--surface);border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}.formula-bar{height:38px;flex-shrink:0;display:flex;align-items:center;gap:8px;padding:0 12px;background:var(--surface);border-bottom:1px solid var(--line)}.fb-cell{font-weight:700;font-size:13px;color:var(--muted);width:54px}.fb-input{flex:1;border:1px solid var(--line);border-radius:7px;padding:6px 10px;font-size:13.5px;font-family:ui-monospace,Menlo,monospace}.fb-input:focus{outline:none;border-color:var(--accent)}.grid-wrap{flex:1;overflow:auto;background:#fff}table.sheet{border-collapse:collapse;table-layout:fixed}table.sheet th,table.sheet td{border:1px solid #e2e5ea;height:26px}table.sheet thead th,table.sheet td.rowhead{background:#f7f8fa;color:var(--muted);font-weight:600;font-size:12px;text-align:center;position:sticky}table.sheet thead th{top:0;z-index:2;min-width:92px}table.sheet td.rowhead{left:0;z-index:1;width:46px;min-width:46px}table.sheet thead th.corner{left:0;z-index:3}table.sheet td.cell{padding:0}table.sheet td.cell input{width:100%;height:100%;border:none;background:transparent;padding:2px 6px;font-size:13px;font-family:inherit;color:var(--text)}table.sheet td.cell input:focus{outline:2px solid var(--accent);outline-offset:-2px;background:#fff}table.sheet td.cell.sel{background:color-mix(in srgb,var(--accent) 8%,white)}.slides-body{flex:1;display:flex;min-height:0}.slide-rail{width:168px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--line);overflow-y:auto;padding:10px}.thumb{position:relative;border:2px solid var(--line);border-radius:7px;aspect-ratio:16/9;margin-bottom:9px;cursor:pointer;overflow:hidden;background:#fff;font-size:6px;padding:7px}.thumb.active{border-color:var(--accent)}.thumb .tnum{position:absolute;left:4px;top:3px;font-size:9px;color:var(--muted);font-weight:700}.thumb .tt{font-weight:700;font-size:8px;margin-top:8px;text-align:center}.thumb .tdel{position:absolute;right:3px;top:3px;opacity:0;border:none;background:#ffffffd9;border-radius:5px;padding:2px;color:#e0413e}.thumb:hover .tdel{opacity:1}.slide-stage{flex:1;display:grid;place-items:center;padding:28px;min-width:0;overflow:auto}.slide-canvas{width:100%;max-width:880px;aspect-ratio:16/9;background:#fff;box-shadow:var(--shadow-lg);border-radius:6px;padding:6%;display:flex;flex-direction:column;gap:18px}.slide-canvas .s-title{font-size:34px;font-weight:800;border:none;background:transparent;resize:none;color:inherit;font-family:inherit}.slide-canvas .s-body{flex:1;font-size:19px;line-height:1.5;border:none;background:transparent;resize:none;color:inherit;font-family:inherit}.slide-canvas textarea:focus{outline:none}.present{position:fixed;top:0;right:0;bottom:0;left:0;background:#000;z-index:100;display:grid;place-items:center}.present .slide-canvas{max-width:92vw;max-height:92vh;border-radius:0}.present-x{position:fixed;top:18px;right:20px;z-index:101;background:#ffffff26;color:#fff;border:none;border-radius:8px;padding:9px 13px}.present-nav{position:fixed;bottom:22px;left:50%;transform:translate(-50%);display:flex;gap:10px;align-items:center;color:#fff;z-index:101}.present-nav button{background:#ffffff26;color:#fff;border:none;border-radius:8px;padding:9px 14px}.pdf-body{flex:1;display:flex;min-height:0}.pdf-side{width:290px;flex-shrink:0;background:var(--surface);border-right:1px solid var(--line);padding:16px;overflow-y:auto}.pdf-side h3{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:18px 0 8px}.pdf-side h3:first-child{margin-top:0}.pdf-view{flex:1;overflow:auto;background:#5b5f66;padding:22px;display:flex;flex-direction:column;align-items:center;gap:16px}.pdf-view canvas{box-shadow:0 6px 20px #0006;background:#fff;max-width:100%}.pdf-file{display:flex;align-items:center;gap:8px;font-size:13px;padding:8px;border:1px solid var(--line);border-radius:8px;margin-bottom:6px}.pdf-file .t{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pdf-file button{border:none;background:none;color:var(--muted);padding:4px;border-radius:5px}.pdf-file button:hover{background:var(--line2);color:#e0413e}.dropzone{border:2px dashed #c2c7d0;border-radius:12px;padding:22px;text-align:center;color:var(--muted);font-size:14px;cursor:pointer}.dropzone:hover,.dropzone.over{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 6%,white)}.field{display:block;margin:8px 0;font-size:13px;color:var(--muted)}.field input{width:100%;border:1px solid var(--line);border-radius:7px;padding:8px 10px;font-size:13.5px;margin-top:4px}.empty-hint{color:#d6d9de;text-align:center;margin:auto;font-size:15px}.pdf-pages{display:grid!important;grid-template-columns:repeat(auto-fill,minmax(150px,1fr));gap:16px;align-content:start;align-items:start}.pg-card{background:#fff;border:2px solid transparent;border-radius:9px;overflow:hidden;box-shadow:0 4px 14px #00000040}.pg-card.sel{border-color:#fff;box-shadow:0 0 0 3px var(--accent, #e0413e),0 4px 14px #0000004d}.pg-canvas{position:relative;cursor:pointer;background:#fff;display:grid;place-items:center;min-height:80px}.pg-canvas img{width:100%;display:block}.pg-check{position:absolute;top:6px;left:6px;background:#ffffffe6;border-radius:5px;padding:2px;color:#e0413e;display:grid;place-items:center}.pg-bar{display:flex;align-items:center;justify-content:space-between;gap:2px;padding:5px 6px;background:#f4f5f7;border-top:1px solid var(--line)}.pg-bar button{border:none;background:none;color:#555;padding:5px;border-radius:6px;display:grid;place-items:center}.pg-bar button:hover:not(:disabled){background:#e6e8ec;color:#111}.pg-bar button:disabled{opacity:.3}.pg-num{font-size:12px;font-weight:700;color:var(--muted)}.spin{animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.pdf-page{margin-bottom:22px}.pdf-page-num{color:#c9cdd5;font-size:12px;margin-bottom:6px;text-align:center}.pdf-page-inner{position:relative;background:#fff;box-shadow:0 6px 20px #0006;margin:0 auto}.pdf-page-inner canvas{display:block}.pdf-overlay{position:absolute;top:0;right:0;bottom:0;left:0}.an{position:absolute}.pdf-overlay .an{cursor:move;white-space:nowrap}.an.sel{outline:1.5px dashed var(--accent, #e0413e);outline-offset:1px}.an-del{position:absolute;left:-11px;top:-11px;width:21px;height:21px;border-radius:50%;background:#e0413e;color:#fff;border:none;display:grid;place-items:center;box-shadow:0 1px 4px #0000004d}.an-resize{position:absolute;width:13px;height:13px;background:#fff;border:2px solid var(--accent, #e0413e);border-radius:3px;transform:translate(-6px,-6px);cursor:nwse-resize}.hint-chip{margin-left:10px;font-size:12px;color:var(--accent);background:color-mix(in srgb,var(--accent) 10%,white);padding:4px 11px;border-radius:999px;white-space:nowrap}.side-tabs{display:flex;gap:6px;margin-bottom:12px}.side-tabs button{flex:1;display:flex;align-items:center;justify-content:center;gap:5px;padding:8px;border:1px solid var(--line);background:#fff;border-radius:8px;font-size:13px;font-weight:600;color:var(--muted)}.side-tabs button.on{background:color-mix(in srgb,var(--accent) 12%,white);color:var(--accent);border-color:var(--accent)}.thumbs{display:flex;flex-direction:column;gap:10px;margin-top:8px}.mini{position:relative;border:1px solid var(--line);border-radius:7px;overflow:hidden;background:#fff}.mini.sel{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.mini img{width:100%;display:block;cursor:pointer}.mini-check{position:absolute;top:4px;left:4px;background:#ffffffeb;border:none;border-radius:5px;padding:2px;color:var(--accent);display:grid;place-items:center}.mini-bar{display:flex;align-items:center;justify-content:space-between;padding:3px 5px;background:#f4f5f7;border-top:1px solid var(--line)}.mini-bar button{border:none;background:none;color:#555;padding:3px;border-radius:5px;display:grid;place-items:center}.mini-bar button:hover:not(:disabled){background:#e6e8ec}.mini-bar button:disabled{opacity:.3}.mini-bar span{font-size:11px;font-weight:700;color:var(--muted)}.modal-back{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;display:grid;place-items:center;z-index:200}.modal{background:#fff;border-radius:12px;padding:18px;width:600px;max-width:92vw;box-shadow:var(--shadow-lg)}.modal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;font-size:16px}.seg{display:inline-flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;margin-bottom:12px}.seg button{padding:7px 16px;border:none;background:#fff;font-size:13px;font-weight:600;color:var(--muted)}.seg button.on{background:var(--accent, #2b6cff);color:#fff}.sig-canvas{width:100%;height:200px;border:1px dashed #c2c7d0;border-radius:8px;background:#fff;touch-action:none;cursor:crosshair}.sig-type{width:100%;box-sizing:border-box;font-family:Georgia,serif;font-style:italic;font-size:30px;padding:18px;border:1px dashed #c2c7d0;border-radius:8px}.modal-foot{display:flex;align-items:center;gap:8px;margin-top:14px}@media (max-width: 760px){.mod-grid{grid-template-columns:repeat(2,1fr)}.home{padding:24px 14px 50px}.page{padding:32px 22px}.slide-rail{width:110px}.pdf-side{width:200px}.dh-name{max-width:150px}}