:root{color:#173a37;font-synthesis:none;--green:#14786e;--border:#dde4d7;--muted:#82917e;--paper:#fff;--soft:#eef2e8;--orange:#be7751;background:#f5f6f2;font-family:Inter,PingFang SC,Microsoft YaHei,sans-serif}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit;border:1px solid var(--border);background:#fff;border-radius:6px;padding:9px 13px;font-size:12px;transition:background .15s,border-color .15s}button:hover:not(:disabled){background:#edf3e8;border-color:#98b6a5}button:disabled{opacity:.42;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline-offset:3px;outline:3px solid #dbab79}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}.site-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:24px;height:84px;padding:0 44px;display:flex}.brand{align-items:center;gap:11px;font-size:15px;font-weight:650;display:flex}.brand-mark{background:var(--green);color:#fff;border-radius:7px;place-items:center;width:35px;height:39px;font-size:27px;display:grid}.brand small{color:var(--muted);letter-spacing:1px;margin-top:4px;font-size:9px;font-weight:400;display:block}.site-header nav{align-items:center;gap:24px;font-size:11px;display:flex}.site-header nav button{background:0 0;border:0;padding:0;font-size:11px}.privacy{color:#7d8e76;border-left:1px solid var(--border);align-items:center;gap:7px;padding-left:24px;display:flex}.privacy i,.status-dot{background:#7fa375;border-radius:50%;width:6px;height:6px;display:inline-block}.app{max-width:1536px;margin:auto;padding:42px 44px 0}.heading{justify-content:space-between;align-items:center;gap:25px;margin-bottom:30px;display:flex}.eyebrow{letter-spacing:3px;color:#86957d;margin:0 0 13px;font-size:9px}h1{letter-spacing:-1.2px;margin:0 0 12px;font-size:clamp(27px,2.7vw,40px);font-weight:700}h1 span{color:var(--orange)}.intro{color:#8a927f;margin:0;font-size:12px;line-height:1.8}.feature-notes{color:#8a927f;align-items:center;gap:21px;font-size:10px;display:flex}.feature-notes span+span:before{content:"·";margin-right:21px}.top-actions{justify-content:space-between;align-items:center;gap:15px;margin-bottom:17px;display:flex}.top-actions>div{gap:9px;display:flex}.top-actions p{color:#8a927f;font-size:10px}.primary{background:var(--green);border-color:var(--green);color:#fff;font-weight:600}.primary:hover:not(:disabled){color:#fff;background:#0b6058;border-color:#0b6058}.top-actions .primary{padding:11px 23px}.top-actions #load-demo{color:#748469;background:0 0;border-color:#0000}.workspace{border:1px solid var(--border);background:#fff;border-radius:12px;position:relative;overflow:hidden;box-shadow:0 18px 40px #294e3510}.workspace-head{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;height:58px;padding:0 23px;display:flex}.workspace-head>div{align-items:center;gap:10px;display:flex}.workspace-head strong{font-size:13px}.counter{background:var(--soft);color:#70856c;border-radius:4px;padding:3px 7px;font-size:10px}.history{gap:6px!important}.history button{background:0 0;border:0;padding:7px 8px;font-size:10px}.history #clear{color:#938a79;border-left:1px solid var(--border);border-radius:0;margin-left:8px;padding-left:17px}.workspace-body{grid-template-columns:minmax(0,1fr) 275px;min-height:600px;display:grid}.pages-panel{background:#fafbf8;min-width:0;position:relative}.sidebar{border-left:1px solid var(--border)}.sidebar-section{border-bottom:1px solid var(--border);padding:20px}.sidebar-section:last-child{border-bottom:0}.section-heading{justify-content:space-between;margin:0 0 17px;font-size:11px;font-weight:600;display:flex}.section-heading>span{letter-spacing:1px;color:#9a9f8e;font-size:8px;font-weight:400}.source-list{max-height:170px;margin:0;padding:0;list-style:none;overflow:auto}.source-list li{align-items:center;gap:9px;padding:7px 0;font-size:11px;display:flex}.source-dot{border-radius:2px;flex-shrink:0;width:7px;height:20px}.source-description{flex:1;min-width:0}.source-name{white-space:nowrap;text-overflow:ellipsis;font-size:10px;display:block;overflow:hidden}.source-meta{color:#8a927f;margin-top:4px;font-size:9px;display:block}.source-list li.muted{color:#9a9f8e;padding:0;font-size:10px}.source-removed{opacity:.5}.field-label{color:#8a927f;margin-top:15px;margin-bottom:8px;font-size:10px;display:block}.field-label:first-of-type{margin-top:0}input[type=text],input[type=number],select{border:1px solid var(--border);color:#496458;background:#fafbf8;border-radius:5px;width:100%;min-width:0;padding:10px;font-size:11px}input[type=checkbox]{accent-color:var(--green);cursor:pointer;width:15px;height:15px;margin:0}.wide{width:100%;margin-top:11px}.field-note{color:#979d8b;margin:10px 0 0;font-size:9px;line-height:1.9}.export-section{background:#fdfefa}.export-summary{color:#6e8668;margin:17px 0 3px;font-size:10px;line-height:1.8}.export-section .primary{padding:13px}.selection-toolbar{border-bottom:1px solid var(--border);background:#fff;flex-wrap:wrap;align-items:center;gap:9px;min-height:55px;padding:13px 20px;display:flex}.selection-toolbar label{cursor:pointer;align-items:center;gap:7px;font-size:11px;display:flex}.selection-toolbar>span{color:#8a927f;font-size:9px}.selection-toolbar button{background:0 0;border-color:#0000;padding:6px 9px;font-size:10px}.selection-toolbar button.danger{color:#b16f54}.toolbar-divider{border-left:1px solid var(--border);height:15px;margin:0 2px}.selection-toolbar .reverse{margin-left:auto;font-size:9px}.page-grid{grid-template-columns:repeat(auto-fill,minmax(145px,1fr));align-content:start;gap:19px;min-height:0;max-height:730px;padding:23px;display:grid;overflow:auto}.page-grid:empty{display:none}.page-card{border:1px solid var(--border);background:#fff;border-radius:7px;min-width:0;transition:border .15s;position:relative;overflow:hidden;box-shadow:0 2px 3px #214a3a04}.page-card.selected{border-color:#499885;box-shadow:0 0 0 2px #49988522}.page-card.drag-target{outline-offset:3px;outline:3px dashed #d1a06e}.card-top{justify-content:space-between;align-items:center;gap:6px;padding:8px 9px;display:flex}.card-top label{cursor:pointer;align-items:center;gap:6px;font-size:10px;display:flex}.card-top .preview-button{color:#86957d;background:0 0;border:0;padding:2px 5px;font-size:13px}.thumb-area{cursor:zoom-in;background:#f0f1ea;justify-content:center;align-items:center;height:209px;margin:0 8px;display:flex;position:relative;overflow:hidden}.thumb-area img{width:auto;max-width:100%;height:auto;max-height:100%;display:block;box-shadow:0 1px 5px #284b3630}.thumb-note{color:#8b947f;text-align:center;padding:20px;font-size:10px;line-height:1.8}.card-label{align-items:center;gap:6px;padding:9px 9px 7px;display:flex}.card-label i{border-radius:50%;flex-shrink:0;width:5px;height:5px}.card-label span{color:#88957d;text-overflow:ellipsis;white-space:nowrap;font-size:9px;overflow:hidden}.card-bottom{border-top:1px solid #edf0e7;justify-content:space-between;align-items:center;gap:3px;padding:6px;display:flex}.card-bottom button{color:#839178;background:0 0;border:0;border-radius:3px;padding:4px 5px;font-size:10px}.card-bottom .card-remove{color:#a78b7b}.page-tip{color:#99a08b;padding:0 23px 19px;font-size:9px;line-height:1.8}.empty-state{text-align:center;flex-direction:column;justify-content:center;align-items:center;min-height:600px;padding:35px 20px;display:flex}.paper-art{width:188px;height:185px;margin-bottom:18px;position:relative}.paper{border-radius:6px;width:97px;height:126px;position:absolute;top:13px;left:40px}.paper-back{background:#dfe7d6;top:7px;left:58px;transform:rotate(13deg)}.paper-front{background:#fffffa;border:1px solid #a8b99c;padding:23px 16px;transform:rotate(-5deg);box-shadow:0 5px 10px #34452a09}.paper-front span{letter-spacing:2px;color:#76956d;font-size:14px}.paper-front i{background:#e1e6d7;height:2px;margin-top:12px;display:block}.paper-front i:nth-of-type(2){width:70%}.paper-front b{color:#fff;background:#e1b887;border:3px solid #fafbf8;border-radius:50%;place-items:center;width:30px;height:30px;font-size:23px;font-weight:400;display:grid;position:absolute;bottom:-12px;right:-12px}.paper-caption{letter-spacing:3px;color:#a3aa96;font-size:8px;position:absolute;bottom:9px;left:26px}.empty-state .eyebrow{letter-spacing:2px;font-size:8px}.empty-state h2{letter-spacing:-.5px;margin:0 0 10px;font-size:23px}.empty-state>p:not(.eyebrow){color:#929d87;margin:0 0 24px;font-size:11px;line-height:1.8}.empty-state button{color:#52734e;background:0 0;border-color:#b8c9ac;padding:11px 24px}.empty-state small{color:#a3aa96;margin-top:17px;font-size:9px}.workspace-footer{border-top:1px solid var(--border);color:#8d9b81;background:#fff;justify-content:space-between;gap:10px;padding:13px 22px;font-size:8px;display:flex}.workspace-footer>span:first-child:before{content:"●";color:#83a777;margin-right:7px;font-size:6px}.below{color:#8d9b81;justify-content:space-between;align-items:center;padding:20px 4px 31px;font-size:10px;display:flex}.below button{color:#8d9b81;background:0 0;border:0;padding:0;font-size:10px}.site-footer{color:#a5ac98;border-top:1px solid var(--border);justify-content:space-between;padding:25px 44px;font-size:9px;display:flex}.drop-overlay{z-index:5;pointer-events:none;background:#edf5eaf0;border:2px dashed #6b9777;border-radius:10px;place-items:center;font-size:22px;display:grid;position:absolute;inset:0}dialog{border:1px solid var(--border);color:inherit;background:#fafbf8;border-radius:12px;width:600px;max-width:calc(100vw - 28px);max-height:88vh;padding:0;box-shadow:0 20px 70px #173a3733}dialog::backdrop{-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:#183f3866}.dialog-head{border-bottom:1px solid var(--border);z-index:1;background:#fafbf8;justify-content:space-between;align-items:center;padding:18px 23px;display:flex;position:sticky;top:0}.dialog-head h2{margin:0;font-size:17px}.dialog-head button{background:0 0;border:0;padding:0 4px;font-size:24px;line-height:1}.help-content{padding:5px 23px 24px}.help-content h3{margin:22px 0 9px;font-size:13px}.help-content p{color:#73846e;font-size:12px;line-height:1.9}.help-content .credits{font-size:10px}.credits a{text-decoration:underline}#preview-dialog{width:850px}.large-preview{background:#edf0e7;justify-content:center;align-items:center;min-height:250px;padding:20px;display:flex}.large-preview canvas{max-width:100%;height:auto;box-shadow:0 2px 9px #173a3722}.large-preview p{color:#82917e;font-size:12px}.busy-overlay{z-index:50;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#f3f7f0e8;place-items:center;display:grid;position:fixed;inset:0}.busy-overlay>div{text-align:center;padding:20px}.busy-overlay strong{margin:18px 0 12px;font-size:17px;display:block}.busy-overlay p{color:#82917e;overflow-wrap:anywhere;max-width:80vw;font-size:11px;line-height:1.8}.spinner{border:2px solid #d3dfc9;border-top-color:#14786e;border-radius:50%;width:29px;height:29px;animation:.8s linear infinite spin;display:inline-block}@keyframes spin{to{transform:rotate(360deg)}}.toast{color:#fff;z-index:70;white-space:pre-line;background:#1d4842;border-radius:8px;max-width:min(650px,90vw);padding:13px 22px;font-size:12px;line-height:1.8;position:fixed;bottom:25px;left:50%;transform:translate(-50%);box-shadow:0 5px 20px #173a3722}.toast.error{background:#854f3c}@media (width>=1600px){.thumb-area{height:230px}}@media (width<=1100px){.app{padding:32px 24px 0}.site-header{padding:0 24px}.feature-notes{display:none}.workspace-body{grid-template-columns:minmax(0,1fr) 250px}.page-grid{grid-template-columns:repeat(auto-fill,minmax(125px,1fr));gap:13px;padding:17px}.thumb-area{height:184px}.sidebar-section{padding:17px}.selection-toolbar{gap:5px;padding:11px 13px}.selection-toolbar .reverse{margin-left:0}.selection-toolbar>span{font-size:8px}.site-footer{padding:22px 24px}.workspace-footer>span:last-child{display:none}}@media (width<=700px){.site-header{gap:10px;height:70px;padding:0 16px}.brand{gap:8px;font-size:13px}.brand-mark{width:30px;height:33px;font-size:22px}.brand small{font-size:8px}.site-header nav a,.privacy{display:none}.site-header nav{gap:0}.site-header nav button{font-size:10px}.app{padding:28px 12px 0}.heading{margin-bottom:21px}.eyebrow{letter-spacing:2px;margin-bottom:12px;font-size:8px}h1{letter-spacing:-1px;margin-bottom:9px;font-size:26px}.intro{font-size:10px}.top-actions{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:12px}.top-actions .primary{padding:11px 19px;font-size:12px}.top-actions #load-demo{font-size:10px}.top-actions p{margin:0 0 2px 2px;font-size:8px}.workspace{border-radius:10px}.workspace-head{height:52px;padding:0 12px}.workspace-head strong{font-size:11px}.history{gap:1px!important}.history button{padding:6px;font-size:9px}.history #clear{margin-left:2px;padding-left:10px}.workspace-body{min-height:0;display:block}.sidebar{border-left:0;border-top:1px solid var(--border)}.sidebar-section{padding:18px 16px}.source-list{max-height:130px}.source-name{font-size:11px}.source-meta{font-size:9px}.section-heading{font-size:12px}.empty-state{min-height:440px;padding:25px 13px}.paper-art{height:170px;margin-bottom:12px;transform:scale(.9)}.empty-state h2{font-size:22px}.empty-state>p:not(.eyebrow){font-size:10px}.empty-state small{font-size:8px}.selection-toolbar{gap:8px;padding:11px}.selection-toolbar label{font-size:10px}.selection-toolbar button{padding:7px 5px;font-size:10px}.selection-toolbar .reverse{margin-left:auto;font-size:9px}.page-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 10px;max-height:650px;padding:14px 11px}.thumb-area{height:205px;margin:0 6px}.card-top{padding:8px}.card-top label{font-size:10px}.card-label{padding:8px 7px 7px}.card-label span{font-size:8px}.card-bottom button{min-width:29px;min-height:32px;padding:6px;font-size:12px}.page-tip{padding:0 12px 14px;font-size:8px}.field-label{font-size:11px}input[type=text],input[type=number],select{padding:12px;font-size:13px}.wide{padding:11px}.field-note{font-size:10px}.export-summary{font-size:11px}.export-section .primary{padding:14px}.workspace-footer{padding:13px 14px;font-size:8px}.below{padding:19px 3px 25px;font-size:9px}.below button{font-size:9px}.site-footer{padding:19px 16px;font-size:8px}.help-content p{font-size:11px}.toast{width:max-content;font-size:11px}}@media (width<=360px){h1{font-size:23px}.thumb-area{height:170px}.selection-toolbar .reverse{margin-left:0}}@media (prefers-reduced-motion:reduce){*{transition:none!important}.spinner{animation-duration:2s}}