:root{color-scheme:light;--ink:#23312b;--muted:#6e7973;--green:#285b48;--line:#dce2dc;--bg:#f4f6f2;--soft:#edf2eb;--red:#9c3631;font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink)}[hidden]{display:none!important}button,input,textarea,summary{font:inherit}button,a,summary{touch-action:manipulation}button{border:1px solid var(--line);border-radius:7px;background:#fff;padding:8px 13px;color:var(--ink);cursor:pointer;transition:background .15s}button:hover{background:#f0f4ef;border-color:#b6c8ba}button:disabled{cursor:not-allowed;opacity:.48}a{color:var(--green);cursor:pointer;text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #a9c8b3;outline-offset:3px}input,textarea{width:100%;border:1px solid #cfd8cf;border-radius:7px;background:#fff;color:var(--ink);padding:9px 11px;transition:border-color .15s}input:focus,textarea:focus{outline:2px solid #dae9df;border-color:var(--green)}textarea{resize:vertical}h1,h2,h3,p{margin:0}h2{font-size:15px;line-height:1.4}h3{font-size:14px}small{color:var(--muted)}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 40px;background:#fff}.brand{font-weight:650;font-size:16px;color:var(--ink);display:flex;gap:20px;align-items:center}.brand span{font-size:14px;font-weight:400;color:var(--muted)}.brand span:first-child{color:#cbd2cc}.top-actions{display:flex;align-items:center;gap:24px;font-size:13px}.workspace{max-width:1540px;margin:auto;padding:36px 40px 64px}.intro{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:28px;gap:20px}.eyebrow{font-size:12px;color:var(--green);letter-spacing:.08em;margin-bottom:8px}h1{font-size:clamp(23px,2vw,30px);font-weight:600;line-height:1.4;letter-spacing:-.025em}.intro p:not(.eyebrow){color:var(--muted);margin-top:8px}.format-label{font-size:12px;color:var(--muted);white-space:nowrap}.columns{display:grid;grid-template-columns:330px minmax(0,1fr);gap:28px;align-items:start}.setup{background:#fff;border:1px solid var(--line);border-radius:10px;padding:24px}.section-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.section-heading>span{font-size:12px;color:#89998e;font-variant-numeric:tabular-nums}.upload{position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;border:1px dashed #aabdac;border-radius:8px;padding:20px 8px;background:#f8faf6;cursor:pointer;text-align:center;gap:4px}.upload:hover,.upload:focus-within{border-color:var(--green);background:var(--soft)}.upload input{position:absolute;inset:0;opacity:0;cursor:pointer}.upload strong{font-size:14px;font-weight:500}.upload>span:last-of-type{font-size:11px;color:var(--muted)}.upload-symbol{font-size:22px;color:var(--green);line-height:1.3}.text-button{border:0;background:transparent;padding:4px 0;color:var(--green);font-size:12px}.text-button:hover{background:transparent;text-decoration:underline}#use-current{margin-top:8px}.source-info{display:flex;align-items:center;gap:10px;padding:12px 0 0;overflow-wrap:anywhere}.source-info strong{font-size:12px;font-weight:500;display:block}.source-info small{font-size:11px}.source-dot{height:6px;width:6px;flex:none;border-radius:50%;background:#517c53}.mode-heading{margin-top:28px}.mode-switch{display:flex;border:0;margin:0;padding:0;gap:8px}.mode-switch label{flex:1;position:relative;cursor:pointer}.mode-switch input{position:absolute;opacity:0;width:1px;height:1px}.mode-switch span{display:block;border:1px solid var(--line);border-radius:8px;padding:10px 12px;font-weight:500}.mode-switch small{display:block;font-weight:400;font-size:11px;margin-top:2px}.mode-switch input:checked+span{border-color:var(--green);background:var(--soft);box-shadow:inset 0 0 0 1px var(--green);color:var(--green)}.mode-switch input:focus-visible+span{outline:3px solid #a9c8b3;outline-offset:2px}.field-hint{font-size:12px;color:var(--muted);line-height:1.65}#mode-help{margin:10px 0 20px}.field{display:block;font-size:13px;font-weight:500;margin-top:16px}.field input,.field textarea{display:block;margin-top:6px;font-weight:400;font-size:13px}.field small{display:block;margin-top:5px;font-size:11px;font-weight:400}.extra{border-top:1px solid var(--line);margin-top:22px;padding-top:16px}.extra summary{font-size:12px;color:var(--green);cursor:pointer}.start-area{margin-top:24px}.primary{background:var(--green);color:#fff;border:1px solid var(--green);border-radius:7px}.primary:hover{background:#1d4938;border-color:#1d4938}.start-area button{width:100%;padding:11px}.start-area p{margin-top:8px;text-align:center}.history{border-top:1px solid var(--line);margin-top:24px;padding-top:22px}.history h2{font-size:13px}#versions{list-style:none;margin:0;padding:0}#versions li+li{border-top:1px solid #edf0ec}#versions button{display:block;width:100%;border:0;border-radius:5px;padding:10px 8px;text-align:left;background:transparent}#versions button:hover,#versions button[aria-current=true]{background:var(--soft)}#versions strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}#versions small{font-size:11px}#more{margin-top:10px}.result-area{min-width:0}.result-toolbar{display:flex;align-items:center;justify-content:space-between;min-height:52px;margin-bottom:16px;gap:16px}.result-toolbar h2{font-size:16px;max-width:500px;overflow-wrap:anywhere}#save-state{font-size:12px;color:var(--muted);margin-top:4px}.result-actions{display:flex;gap:8px;align-items:center;flex-wrap:wrap;flex:none}.result-actions button{font-size:12px}.download-menu{position:relative}.download-menu summary{list-style:none;font-size:12px;padding:8px 12px;cursor:pointer;display:flex;gap:20px;align-items:center}.download-menu summary::-webkit-details-marker{display:none}.download-menu>div{position:absolute;right:0;top:calc(100% + 6px);width:180px;background:#fff;border:1px solid var(--line);border-radius:8px;padding:6px;box-shadow:0 8px 24px #24392c14;z-index:5}.download-menu button{display:block;border:0;width:100%;text-align:left;padding:9px 10px}.download-menu button span{display:block;font-size:11px;color:var(--muted)}.empty{border:1px solid var(--line);border-radius:10px;min-height:690px;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#f9faf7}.empty h2{font-size:22px;margin-top:28px;font-weight:500}.empty p{text-align:center;color:var(--muted);margin-top:12px;font-size:13px;line-height:1.9}.empty-foot{display:flex;gap:28px;margin-top:44px;font-size:11px;color:#849185}.page-silhouette{width:126px;height:160px;background:#fff;border:1px solid #d2dbd0;border-radius:3px;padding:24px 18px;transform:rotate(-5deg);box-shadow:7px 9px 0 #e8ede4}.page-silhouette b{display:block;width:45%;height:7px;background:#a7bca5;margin-bottom:14px}.page-silhouette i{display:block;background:#e1e8dd;height:3px;margin:7px 0}.page-silhouette i:nth-child(3n){width:70%}.page-silhouette hr{border:0;border-top:1px solid #ecf0e8;margin:12px 0}.paper-wrap{background:#e9eee7;border-radius:8px;padding:0 28px 28px;border:1px solid var(--line)}.edit-hint{font-size:11px;text-align:center;color:var(--muted);padding:12px 0}.paper{max-width:794px;min-height:1050px;margin:0 auto;background:#fff;padding:50px 52px;box-shadow:0 2px 7px #1a32160b;font:13px/1.85 "PingFang SC","Microsoft YaHei",sans-serif;color:#222;overflow-wrap:anywhere}.paper .doc-name{font-size:28px;font-weight:600;line-height:1.4;margin-bottom:6px}.paper .doc-headline{font-size:14px;margin-bottom:6px}.paper .doc-contact{font-size:11px;color:#555;margin-bottom:20px}.paper .doc-section{font-size:15px;font-weight:600;border-bottom:1px solid #d9ded8;margin-top:24px;margin-bottom:10px;padding-bottom:5px}.paper .doc-heading{font-size:13px;font-weight:600;margin-top:10px}.paper .doc-detail{font-size:11px;color:#777}.paper .editable{white-space:pre-wrap;min-height:1.4em;border-radius:3px;outline:1px solid transparent;outline-offset:4px}.paper .editable:hover{background:#f5f8f2;outline-color:#e4ecdf}.paper .editable:focus{background:#f7faf3;outline-color:#9cb69a}.paper .editable:empty:before{content:attr(data-placeholder);color:#a9afa8}.source-preview{border:1px solid var(--line);border-radius:8px;background:#fff;padding:28px}.source-preview p{margin:8px 0 20px}pre{font-family:inherit;font-size:13px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere;margin:0}.source-preview pre{font:13px/1.9 -apple-system,"PingFang SC",sans-serif;color:#4d5750}.changes-wrap{margin-top:20px;padding:20px 24px;border-top:1px solid var(--line)}.changes-wrap summary{cursor:pointer;font-size:13px;color:var(--green)}.changes-wrap h3{margin-top:16px;font-size:12px}.changes-wrap ul{font-size:13px;color:var(--muted);padding-left:20px;margin-top:8px}.notice{padding:12px 16px;margin-bottom:20px;border:1px solid #b6c9b6;background:#ecf4e9;border-radius:7px;font-size:13px}.notice.error,.task-error{background:#fff3ef;color:var(--red);border-color:#edd2c8}.task-error{border:1px solid #edd2c8;padding:20px;border-radius:8px;margin-bottom:20px}.task-error p{margin:8px 0 14px;font-size:13px}.progress{position:relative;background:#e8f0e5;border:1px solid #c9d9c4;border-radius:8px;padding:20px;margin-bottom:20px;overflow:hidden}.progress p{font-size:12px;color:var(--muted);margin-top:6px}.progress-line{height:3px;width:30%;background:#6d9570;position:absolute;top:0;left:0;animation:loading 1.8s ease-in-out infinite}@keyframes loading{0%{transform:translateX(-100%)}100%{transform:translateX(430%)}}dialog{border:1px solid var(--line);border-radius:10px;padding:28px;width:min(760px,90vw);max-height:85vh}dialog::backdrop{background:#10241b60}.dialog-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px}dialog pre{font:13px/1.9 -apple-system,"PingFang SC",sans-serif}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}@media(min-width:1600px){.columns{grid-template-columns:360px minmax(0,1fr);gap:36px}.setup{padding:28px}}@media(max-width:1150px){.workspace{padding:28px 24px}.columns{grid-template-columns:300px minmax(0,1fr);gap:20px}.paper{padding:32px}.paper-wrap{padding:0 16px 20px}.result-toolbar{flex-wrap:wrap}.format-label{display:none}}@media(max-width:800px){.topbar{padding:0 20px;height:60px}.top-actions{gap:10px}.top-actions>span{display:none}.workspace{padding:24px 16px}.columns{grid-template-columns:1fr}.intro{margin-bottom:24px}.intro h1{font-size:23px}.setup{padding:22px}.empty{min-height:380px}.paper{min-height:650px;padding:28px 22px}.paper-wrap{padding:0 10px 10px}.result-toolbar{align-items:flex-start}.brand{gap:10px}.history{max-height:240px;overflow:auto}}@media(prefers-reduced-motion:reduce){*{transition:none!important}.progress-line{animation:none;width:100%;opacity:.5}}
/* Review, version control, and document editing share the existing restrained palette. */
.storage-note{font-size:11px;line-height:1.7;color:var(--muted);margin-top:15px}
.danger-text{color:var(--red);margin-top:8px}
.danger-text:hover{color:#7d2925}
.review-banner{display:flex;gap:8px;flex-direction:column;border:1px solid #cdddc9;border-radius:8px;background:#f1f6ef;padding:13px 17px;margin-bottom:12px;font-size:12px}
.review-banner strong{font-size:13px;font-weight:600;color:var(--green)}
.review-banner span{color:#54635a}
.changes-wrap{margin:0 0 16px;padding:0;border:1px solid var(--line);border-radius:8px;background:#fff}
.changes-wrap summary{padding:11px 17px;font-weight:500}
.changes-body{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding:0 17px 14px;border-top:1px solid #edf0ec}
.changes-body h3{margin-top:12px}
.changes-body ul{margin:5px 0 0}
.changes-body li{margin-bottom:3px}
.paper-footer{display:flex;justify-content:center;padding:15px 0 0}
.paper-footer button,.paper .add-item{font-size:11px;color:var(--green);border-color:#b9cdbc;background:#fff}
.paper-footer button:hover,.paper .add-item:hover{background:#f0f6ef}
.paper .section-title-row{display:flex;align-items:end;gap:12px}
.paper .section-title-row .doc-section{flex:1;min-width:0}
.paper .structure-menu{position:relative;width:max-content;margin-left:auto;z-index:2}
.paper .structure-menu summary{list-style:none;cursor:pointer;font-size:11px;color:#5c7865;padding:4px 6px;border-radius:4px}
.paper .structure-menu summary::-webkit-details-marker{display:none}
.paper .structure-menu summary:hover,.paper .structure-menu[open] summary{background:#edf4ed;color:var(--green)}
.paper .structure-menu-panel{position:absolute;right:0;top:100%;width:142px;padding:5px;background:#fff;border:1px solid var(--line);border-radius:7px;box-shadow:0 8px 20px #1b382018;z-index:3}
.paper .structure-menu-panel button{display:block;width:100%;border:0;text-align:left;background:transparent;padding:7px 9px;color:var(--ink);font-size:11px}
.paper .structure-menu-panel button:hover{background:#eef4ee}
.paper .structure-menu-panel button:disabled{opacity:.38}
.paper .resume-item .structure-menu{margin-top:2px;margin-bottom:8px}
.paper .add-item{display:block;margin:11px 0 5px;padding:4px 8px}
.review-dialog{width:min(1080px,96vw);max-height:88vh;padding:24px}
.dialog-top{gap:20px}
.dialog-top p{font-size:12px;color:var(--muted);margin-top:5px;line-height:1.6}
.dialog-top button{flex:none}
.comparison-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.comparison-grid>section{min-width:0;max-height:calc(88vh - 155px);overflow:auto;border:1px solid var(--line);border-radius:7px;padding:18px;background:#fff}
.comparison-grid>section:first-child{background:#f8faf7}
.comparison-grid h3{font-size:13px;margin-bottom:12px}
.comparison-grid pre{font:12px/1.8 -apple-system,"PingFang SC",sans-serif}
.comparison-overview{padding:2px 0 15px}
.comparison-overview h4{margin:0 0 8px}
.comparison-overview p{white-space:pre-wrap;font-size:12px;line-height:1.8}
.comparison-item{border-top:1px solid #e4e9e2;padding:12px 0}
.comparison-item strong,.comparison-item small{display:block}
.comparison-item small{margin-top:2px}
.comparison-item>p{white-space:pre-wrap;font-size:12px;line-height:1.8;margin-top:8px}
#comparison-result h4{font-size:13px;margin:15px 0 7px}
.evidence{background:#f1f6ef;border-left:2px solid #9ab99d;margin-top:10px;padding:8px 10px;color:#42594a;font-size:11px}
.evidence b{display:block;font-weight:600;margin-bottom:3px}
.evidence blockquote{margin:5px 0;line-height:1.6}
.evidence p{margin:0}
.pdf-preview-dialog{width:min(1080px,96vw);height:min(92vh,1100px);max-height:92vh;display:flex;flex-direction:column}
.pdf-preview-dialog:not([open]){display:none}
.pdf-preview-dialog .dialog-top{margin-bottom:12px}
.pdf-preview-dialog .page-count{font-size:12px;color:var(--green);font-weight:600;margin-bottom:10px}
.pdf-pages{flex:1;min-height:0;overflow:auto;background:#e9eee7;border:1px solid var(--line);padding:18px}
.pdf-page{max-width:720px;min-height:600px;margin:0 auto 18px;background:#fff;padding:32px 38px;box-shadow:0 2px 7px #1a32160b}
.pdf-page h3{font-size:12px;color:var(--muted);border-bottom:1px solid var(--line);padding-bottom:9px;margin-bottom:15px}
.pdf-page pre{font:12px/1.8 "PingFang SC","Microsoft YaHei",sans-serif;white-space:pre-wrap;overflow-wrap:anywhere}
.confirm-dialog{width:min(440px,calc(100vw - 32px));padding:24px}
.confirm-dialog h2{font-size:17px}
.confirm-dialog p{font-size:13px;color:var(--muted);line-height:1.7;margin-top:10px}
.confirm-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:24px}
.confirm-actions .danger{background:var(--red);border-color:var(--red)}
.confirm-actions .danger:hover{background:#7d2925;border-color:#7d2925}
@media(max-width:800px){.changes-body,.comparison-grid{grid-template-columns:1fr}.review-dialog{padding:16px}.comparison-grid>section{max-height:34vh}.paper .section-title-row{display:block}.paper .structure-menu{margin-left:0}.paper .structure-menu-panel{left:0;right:auto}.pdf-preview-dialog{padding:14px}}