:root{color-scheme:light;font-family:Inter,SF Pro Display,PingFang SC,Noto Sans CJK SC,system-ui,sans-serif;--bg: #f7f6f1;--surface: #fffefa;--surface-2: #eeeee6;--ink: #151714;--muted: #656b61;--line: #deded4;--celadon: #5c7f6d;--celadon-dark: #375f50;--cinnabar: #b6422c;--paper: #fbf4dc;--shadow: 0 22px 70px rgba(42, 46, 37, .12)}*{box-sizing:border-box}body{margin:0;overflow-x:hidden;background:linear-gradient(90deg,rgba(92,127,109,.08) 1px,transparent 1px),linear-gradient(#fbfaf5,var(--bg));background-size:36px 36px,auto;color:var(--ink)}button,input,textarea{font:inherit}.app-shell{min-height:100vh}.app-header{position:sticky;top:0;z-index:10;display:grid;grid-template-columns:250px 1fr auto;gap:18px;align-items:center;min-height:72px;padding:0 28px;border-bottom:1px solid var(--line);background:#f7f6f1eb;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}.brand,.top-nav a,.header-action,.btn{color:inherit;text-decoration:none}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:grid;width:38px;height:38px;place-items:center;border:1px solid var(--ink);background:var(--ink);color:#fff;font-family:Songti SC,serif;font-size:22px}.brand-copy{display:grid;gap:2px}.brand-copy strong{font-size:16px}.brand-copy small,.meta-list dt,.page-row small,.form-status{color:var(--muted);font-size:12px}.top-nav{display:flex;justify-content:center;gap:6px}.top-nav a,.header-action{display:inline-flex;align-items:center;gap:7px;min-height:38px;padding:0 12px;border:1px solid transparent;font-size:14px}.top-nav a.active,.top-nav a:hover,.header-action{border-color:var(--line);background:var(--surface)}.header-promo{color:var(--cinnabar);font-size:14px;font-weight:500;text-align:center;white-space:nowrap}.user-menu{position:relative;justify-self:end}.user-menu-trigger{cursor:pointer}.user-menu-panel{position:absolute;top:calc(100% + 8px);right:0;z-index:20;min-width:128px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}.user-menu-item{width:100%;min-height:38px;padding:0 12px;border:0;background:transparent;color:var(--ink);text-align:left;cursor:pointer}.user-menu-item:hover{background:var(--surface-2)}.screen{width:min(1440px,100%);margin:0 auto;padding:28px}.upload-screen,.admin-screen{display:grid;grid-template-columns:minmax(360px,.75fr) minmax(520px,1.25fr);gap:20px}.editor-screen{display:grid;width:100%;height:calc(100vh - 72px);grid-template-columns:210px minmax(760px,1fr) 340px;grid-template-rows:minmax(0,1fr);gap:16px;min-height:0;overflow:hidden}.panel,.command-panel{min-width:0;border:1px solid var(--line);background:#fffefaeb;box-shadow:var(--shadow)}.panel{padding:18px}.command-panel{display:grid;align-content:start;gap:22px;padding:28px}h1,h2,p{margin:0}h1{max-width:760px;font-size:clamp(28px,3vw,48px);line-height:1.06;letter-spacing:0;overflow-wrap:anywhere}h2{font-size:16px;line-height:1.2}p{color:var(--muted);line-height:1.7}.dropzone{display:grid;min-height:220px;place-items:center;gap:10px;border:1px dashed #a8b7aa;background:linear-gradient(135deg,#fffefa,#edf3ed);text-align:center;cursor:pointer;transition:border-color .16s ease,background .16s ease,box-shadow .16s ease}.dropzone input{display:none}.dropzone.is-dragging{border-color:var(--celadon-dark);background:linear-gradient(135deg,#fbfff7,#e2f2e4);box-shadow:inset 0 0 0 1px #2b554359}.dropzone small{color:var(--muted)}.processing-template-picker{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:18px 0 14px}.template-option{display:grid;gap:4px;min-height:72px;padding:12px 14px;border:1px solid var(--line);background:#fffefad1;color:var(--ink);text-align:left;cursor:pointer}.template-option.active{border-color:var(--celadon-dark);background:#eef4ed}.template-option:disabled{cursor:not-allowed;opacity:.62}.template-option span{color:var(--muted);font-size:13px;line-height:1.45}.progress-meter{display:grid;width:100%;gap:8px;margin-top:12px}.progress-meter.compact{width:min(340px,calc(100% - 32px));margin-top:4px}.progress-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;color:var(--muted);font-size:13px}.progress-meta strong{font-size:13px;color:var(--ink)}.progress-track{height:8px;overflow:hidden;border:1px solid rgba(43,85,67,.18);background:#2b554317}.progress-track span{display:block;width:0;height:100%;background:var(--celadon-dark);transition:width .18s ease}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:40px;padding:0 15px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}.btn.primary{border-color:var(--celadon-dark);background:var(--celadon-dark);color:#fff}.btn.ghost{background:transparent}.btn.danger{border-color:#b6422c47;color:var(--cinnabar)}.btn.danger:hover:not(:disabled){border-color:var(--cinnabar);background:#b6422c14}.btn.wide{width:100%}.btn.mini{min-height:32px;padding:0 10px;font-size:13px}.btn:disabled,.btn.disabled{opacity:.45;cursor:not-allowed}.action-row,.export-row{display:flex;flex-wrap:wrap;gap:10px}.dashboard-grid{display:grid;grid-template-rows:auto 1fr;gap:20px}.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;min-width:0;margin-bottom:16px}.tag{display:inline-flex;align-items:center;max-width:100%;min-height:26px;padding:0 9px;border:1px solid #cfd8cf;background:#eef4ed;color:var(--celadon-dark);font-size:12px}.progress-card{display:grid;grid-template-columns:1fr auto;align-items:center;gap:10px 16px;min-height:74px;padding:18px;background:var(--ink);color:#fff}.progress-card strong{font-size:28px}.progress-card .progress-meta strong{font-size:13px}.progress-card .progress-meter{grid-column:1 / -1}.meta-list{display:grid;gap:12px;margin:18px 0 0}.meta-list div{display:grid;grid-template-columns:72px 1fr;gap:10px}.meta-list dd{margin:0}.recent-projects{display:grid;gap:10px}.recent-project{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);background:#ffffffa3;cursor:pointer}.recent-project.active{border-color:var(--celadon-dark);background:#2b554314}.recent-project span{min-width:0}.recent-project strong,.recent-project small{display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.recent-project small{margin-top:4px;color:var(--muted)}.recent-project-actions{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:8px}.empty-state{display:grid;min-height:240px;place-items:center;border:1px dashed var(--line);color:var(--muted)}.compact-state{min-height:76px;padding:10px;font-size:13px;line-height:1.5;text-align:center}.loading-state{gap:12px;align-content:center}.side-panel,.inspector-panel{align-self:stretch;min-height:0}.side-panel{display:grid;grid-template-rows:auto minmax(0,1fr) auto;overflow:hidden}.page-list{min-height:0;overflow-y:auto;padding-right:4px}.page-row{display:flex;width:100%;justify-content:space-between;align-items:center;min-height:44px;margin-bottom:8px;border:1px solid var(--line);background:transparent;cursor:pointer}.page-list .page-row:last-child{margin-bottom:0}.page-row.active{border-color:var(--celadon);background:#eef4ed}.document-panel{display:grid;grid-template-rows:auto auto minmax(0,1fr);min-height:720px}.document-panel h1{width:100%;max-width:none;font-size:clamp(22px,1.8vw,30px);line-height:1.18}.template-strip{position:relative;z-index:5;display:flex;flex-wrap:wrap;align-items:stretch;gap:10px;min-width:0;margin-bottom:12px;overflow:visible}.template-chip{display:inline-grid;grid-template-columns:auto auto;gap:3px 8px;align-items:center;min-width:210px;min-height:48px;padding:7px 12px;border:1px solid var(--line);background:#fffefadb;color:var(--ink);text-align:left;cursor:pointer}.template-chip.active{border-color:var(--celadon);background:#eef4ed}.template-chip:disabled{cursor:not-allowed;opacity:.58}.template-chip small{grid-column:2;color:var(--muted);font-size:12px;line-height:1.2}.full-check-button{flex:0 0 auto;min-width:116px;margin-left:auto}.paper-select-label{display:grid;min-width:140px;gap:5px;font-size:12px}.paper-select{min-height:40px;padding:0 10px;border:1px solid var(--line);background:var(--surface);color:var(--ink)}.custom-select{position:relative;min-width:150px}.custom-select-trigger{display:inline-flex;align-items:center;justify-content:space-between;gap:10px;width:100%;min-height:40px;padding:0 10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer}.custom-select.open .custom-select-trigger,.custom-select-trigger:hover:not(:disabled),.custom-select-trigger:focus-visible{border-color:var(--celadon-dark);outline:none}.custom-select-trigger:disabled{opacity:.55;cursor:not-allowed}.custom-select-menu{position:absolute;top:calc(100% + 6px);left:0;z-index:30;display:grid;min-width:max(100%,190px);overflow:hidden;border:1px solid var(--line);background:var(--surface);box-shadow:0 16px 36px #15171429}.custom-select-option{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;width:100%;min-height:40px;padding:8px 10px;border:0;border-bottom:1px solid rgba(222,222,212,.72);background:transparent;color:var(--ink);text-align:left;cursor:pointer}.custom-select-option:last-child{border-bottom:0}.custom-select-option:hover,.custom-select-option.active{background:#eef4ed}.custom-select-option strong,.custom-select-option small{display:block}.custom-select-option small{margin-top:3px;color:var(--muted);font-size:12px;line-height:1.35}.custom-paper-fields{display:grid;grid-template-columns:repeat(2,minmax(86px,1fr));gap:8px;min-width:190px}.custom-paper-fields label{gap:5px;font-size:12px}.custom-paper-fields input{min-height:40px;width:100%}.document-canvas{position:relative;display:grid;place-items:center;overflow:auto;border:1px solid var(--line);background:linear-gradient(90deg,rgba(21,23,20,.04) 1px,transparent 1px),var(--paper);background-size:20px 20px}.comparison-canvas{align-content:start;padding:16px}.comparison-canvas.is-page-loading{overflow:hidden}.canvas-loading-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:4;display:grid;place-items:center;background:#f7f0d6b8;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px)}.canvas-loading-dialog{display:inline-flex;align-items:center;gap:10px;min-height:48px;padding:0 18px;border:1px solid rgba(43,91,73,.28);background:#fffdf6f5;box-shadow:0 12px 28px #15171424;color:var(--celadon-dark);font-weight:700}.spin-icon{animation:page-loading-spin .9s linear infinite}@keyframes page-loading-spin{to{transform:rotate(360deg)}}.comparison-grid{display:grid;grid-template-columns:repeat(2,minmax(280px,1fr));gap:16px;width:100%;min-width:0}.spread-review-grid{display:grid;gap:18px;width:100%;min-width:0}.spread-original-grid{display:grid;grid-template-columns:repeat(2,minmax(260px,1fr));gap:16px;align-items:start;width:100%;min-width:0}.compare-pane{display:grid;grid-template-rows:auto minmax(0,1fr);gap:10px;min-width:0}.compare-head{display:flex;align-items:center;justify-content:space-between;gap:10px;min-width:0}.compare-head strong{font-size:15px}.compare-head small{color:var(--muted);font-size:12px}.paper-frame{display:grid;width:min(100%,390px);max-height:66vh;justify-self:center;place-items:center;overflow:hidden;border:1px solid rgba(21,23,20,.2);background:#fffdf6;box-shadow:0 18px 50px #40301e2e}.paper-frame img{width:100%;height:100%;object-fit:contain}.restored-html-frame{align-items:stretch;justify-items:stretch;padding:0;overflow:hidden}.restored-html-page{display:grid;min-width:100%;min-height:100%;place-items:start center;box-sizing:border-box;background:#fffdf6}.spread-restored-frame{width:min(100%,980px);max-height:none}.spread-html-page{position:relative;grid-template-columns:minmax(0,1fr) minmax(34px,46px) minmax(0,1fr);grid-template-rows:minmax(0,1fr);place-items:stretch;height:100%;border:8px solid #242121;background:#fff}.spread-page-half{display:grid;grid-row:1;min-height:100%;min-width:0;overflow:hidden}.spread-page-content{display:grid;min-width:100%;min-height:100%;box-sizing:border-box;place-items:start center;overflow:hidden}.spread-page-left{grid-column:1}.spread-page-right{grid-column:3}.spread-corrected-pane{width:100%}.spread-original-pane .paper-frame{width:min(100%,480px);max-height:42vh}.spread-original-pane .paper-frame .original-scan-image{max-height:42vh}.restored-text-columns{display:flex;flex-direction:row-reverse;align-items:flex-start;justify-content:center;gap:var(--restored-column-gap);width:100%;min-height:100%}.restored-text-columns.spread-text-columns{align-items:stretch;justify-content:stretch;gap:var(--restored-column-gap);height:100%;min-height:100%;padding:0}.restored-column{display:grid;grid-auto-rows:minmax(22px,auto);gap:0}.spread-column{display:grid;align-content:center;justify-items:stretch;flex:1 1 0;min-height:100%;min-width:0;border-left:1px solid rgba(21,23,20,.76)}.spread-column-slot{grid-auto-rows:minmax(var(--restored-line-height),auto)}.spread-column-empty{background:transparent}.spread-align-top .spread-column{align-content:start}.spread-align-center .spread-column{align-content:center}.spread-align-bottom .spread-column{align-content:end}.restored-character-cell{position:relative;display:grid;width:var(--restored-column-width);min-height:var(--restored-line-height);place-items:center}.spread-column .restored-character-cell{width:100%;min-height:var(--restored-line-height)}.spread-fold{grid-column:2;grid-row:1;display:grid;grid-template-rows:1fr auto 1fr;align-items:stretch;justify-items:center;min-width:34px;border-left:1px solid rgba(21,23,20,.78);border-right:1px solid rgba(21,23,20,.78);background:#fff}.fold-band{display:grid;width:100%;place-items:center;background:#242121;color:#fff;font-family:Songti SC,"Noto Serif CJK SC",serif;font-size:12px;writing-mode:vertical-rl}.fold-band-top{align-self:end;min-height:28px}.fold-band-bottom{align-self:start;min-height:120px;padding:8px 0}.spread-fold-label{display:block;min-height:170px;padding:10px 3px;color:var(--ink);font-family:Songti SC,"Noto Serif CJK SC",serif;font-size:calc(var(--restored-font-size) * .75);line-height:1.45;text-align:center;writing-mode:vertical-rl;outline:none}.spread-fold-label:focus{background:#e5eee17a}.restored-character-text{display:grid;width:100%;min-width:0;height:100%;min-height:inherit;place-items:center;box-sizing:border-box;border:0;border-radius:0;background:transparent;color:var(--ink);font-family:Songti SC,"Noto Serif CJK SC",serif;font-size:var(--restored-font-size);line-height:var(--restored-line-height);text-align:center;outline:none;white-space:pre;transition:border-color .15s ease,background .15s ease}.restored-character-text:hover,.restored-character-text:focus{outline:1px solid rgba(43,91,73,.36);outline-offset:-1px;background:#e5eee157}.mark-toggle{position:absolute;right:0;bottom:15%;width:calc(var(--restored-mark-size) * 2);height:calc(var(--restored-mark-size) * 2);padding:0;border:1px solid transparent;border-radius:50%;background:transparent;cursor:pointer}.mark-toggle:hover,.mark-toggle:focus-visible{border-color:#c92c2c94;background:#c92c2c14}.mark-toggle.mark-circle,.mark-toggle.mark-dot{border-color:#d42c2c;border-width:var(--restored-mark-border-width)}.original-paper-frame{overflow:visible;background:transparent;box-shadow:none}.paper-frame .original-scan-image{display:block;width:auto;height:auto;max-width:100%;max-height:66vh;object-fit:contain;border:1px solid rgba(21,23,20,.2);background:#fffdf6;box-shadow:0 18px 50px #40301e2e}.paper-placeholder{display:grid;width:100%;height:100%;min-height:220px;place-items:center;padding:18px;border:1px dashed var(--line);color:var(--muted);text-align:center;background:#fffefab3}.export-row{margin-top:14px}.editor-textarea{width:100%;min-height:320px;resize:vertical;padding:14px;border:1px solid var(--line);background:#fffdf6;font-family:Songti SC,"Noto Serif CJK SC",serif;font-size:20px;line-height:1.8}.control-stack,.auth-card,.admin-command,.entitlement-card{display:grid;gap:14px}.spread-align-control{display:grid;gap:8px;color:var(--muted);font-size:13px}.spread-align-control>span{display:inline-flex;align-items:center;gap:6px}.segmented-control{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border:1px solid var(--line);background:#fffefa}.segmented-control button{min-height:34px;border:0;border-right:1px solid var(--line);background:transparent;color:var(--ink);cursor:pointer}.segmented-control button:last-child{border-right:0}.segmented-control button.active{background:var(--celadon-dark);color:#fff}.segmented-control button:disabled{opacity:.45;cursor:not-allowed}label{display:grid;gap:7px;color:var(--muted);font-size:13px}label span{display:inline-flex;align-items:center;gap:6px}.field-error{color:var(--cinnabar);font-size:12px;line-height:1.4}input,textarea{border:1px solid var(--line);background:#fffefa;color:var(--ink)}input{min-height:40px;padding:0 11px}input[aria-invalid=true]{border-color:var(--cinnabar);background:#fff8f5}input[type=range]{padding:0}.check-row{display:flex;align-items:center}.auth-screen{display:grid;place-items:start center}.auth-card{width:min(520px,100%);padding:26px}.auth-card h1{font-size:clamp(30px,4vw,44px)}.auth-footer{display:grid;gap:10px;padding-top:4px}.captcha-row{display:grid;grid-template-columns:150px auto;align-items:center;gap:12px}.captcha-placeholder{width:150px;height:48px;border:1px solid var(--line);background:var(--surface)}.captcha-image{display:block;width:100%;height:100%;object-fit:contain}.dialog-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:grid;place-items:center;padding:24px;background:#15171447}.dialog-card{display:grid;width:min(360px,100%);gap:14px;padding:22px;border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow)}.dialog-card h2{font-size:20px}hr{width:100%;border:0;border-top:1px solid var(--line)}.admin-table{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th,td{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left}pre{overflow:auto;margin:0;padding:12px;background:var(--surface-2);color:var(--muted)}.spin{animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 980px){.app-header{grid-template-columns:1fr;height:auto;padding:14px}.top-nav{justify-content:flex-start;flex-wrap:wrap;overflow-x:auto}.screen,.upload-screen,.editor-screen,.admin-screen{display:grid;grid-template-columns:1fr;padding:14px;overflow-x:hidden}.editor-screen{height:auto;min-height:calc(100vh - 72px);overflow:visible}.side-panel{max-height:42vh}.screen>*,.editor-screen>*,.upload-screen>*,.admin-screen>*{min-width:0;max-width:100%}.panel-head{align-items:flex-start;flex-wrap:wrap;justify-content:flex-start}.document-panel{min-height:560px}.document-canvas{min-width:0}.comparison-canvas{padding:12px}.comparison-grid,.spread-original-grid{grid-template-columns:1fr}.paper-frame{width:min(100%,480px);max-height:72vh}.page-row{min-width:0}}