/* PaperWB V2: consistent independent work areas, no remote assets */
:root{--primary:#176af0;--primary-strong:#0756d9;--page:#f1f6fd;--line:#e3ebf7;--muted:#7182a0;--ink:#203658;--surface:#ffffff;--subtle:#f6f9ff;--shadow:0 8px 30px rgba(34,78,144,.043)}
body{background:var(--page)}.topbar{height:72px;background:linear-gradient(180deg,#fbfdff,#f7fbff);padding:0 26px}.brand{min-width:310px}.brand strong{font-size:19px;font-weight:800}.brand-mark{width:40px;height:40px}.topbar-actions{gap:15px}.search-wrap{width:clamp(280px,32vw,570px);background:#fff}.sidebar{top:72px;width:207px;background:linear-gradient(180deg,#f7faff 0%,#f1f6fd 75%);padding:13px 11px}.sidebar nav{gap:6px}.sidebar nav a{height:44px;padding:0 15px;font-weight:600;color:#394c71}.sidebar nav a.active{border-left:3px solid #176af0;background:linear-gradient(90deg,#dcecff,#e6f0ff);color:#0860d8}.side-card{background:#eef6ff;border-color:#dbeaf9}.main{margin:72px 0 0 207px;padding:17px 18px;min-height:calc(100vh - 72px)}.page{max-width:1780px}.card{border-radius:13px;box-shadow:var(--shadow);border-color:#e4ecf7}.section-heading{margin-bottom:15px}.section-heading h2{font-weight:800;font-size:16px;color:#20355c}.page-titlebar h1{font-size:26px;color:#172c54}.btn{border-radius:8px}.btn-outline{color:#1265d7;border-color:#cbdcf7}.btn-primary{background:linear-gradient(125deg,#2f8bff,#0869f0)}.btn:disabled{opacity:.4;cursor:not-allowed}.data-table{font-size:12px}.data-table th{background:#f4f8ff;padding:11px 12px;color:#59708f}.data-table td{padding:11px 12px;line-height:1.65}.data-table button{white-space:nowrap}.pill{padding:3px 9px}.page .actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.card .note{line-height:1.65}.v2-page{padding-bottom:30px}.v2-heading{margin-bottom:14px;align-items:center}.v2-heading .crumb{font-size:11px;color:#8191ac;margin-bottom:5px}.v2-heading .crumb span{color:#2375e6}.v2-heading h1{font-size:23px}.v2-heading p{margin-top:5px;color:#8492a8}.v2-split{display:grid;grid-template-columns:minmax(0,1fr) 286px;gap:14px;align-items:start}.v2-content{min-width:0;display:grid;gap:14px;align-content:start}.v2-rail{display:grid;gap:13px;align-content:start;min-width:0}.v2-panel{padding:17px 19px}.v2-rail .v2-panel{padding:17px 17px}.v2-panel .section-heading>.actions{margin-left:auto}.v2-stats{display:flex;gap:9px;flex-wrap:nowrap}.v2-stat{min-width:0;flex:1;background:#f3f8ff;border-radius:10px;padding:16px 7px;text-align:center}.v2-stat:nth-child(2){background:#effaf7}.v2-stat:nth-child(3){background:#f6f3ff}.v2-stat b{display:block;color:#166ef0;font-size:22px;line-height:1.1;white-space:nowrap}.v2-stat:nth-child(2) b{color:#16aa7b}.v2-stat:nth-child(3) b{color:#7f5bda}.v2-stat span{display:block;margin-top:8px;color:#7183a0;font-size:11px}.v2-rail .v2-donut{margin:16px auto}.v2-donut{height:126px;width:126px}.v2-donut .donut-inner{width:96px;height:96px}.v2-donut .donut-inner strong{font-size:22px}.v2-donut .donut-inner small{margin-top:-18px}.meter-row{display:flex;align-items:center;gap:10px;margin:13px 0 7px}.meter-row .progress-track{flex:1}.meter-row strong{color:#2274ef;font-size:12px}.v2-quicklinks{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.v2-quicklinks button{background:#f2f7ff;border:1px solid #e2edff;border-radius:9px;color:#466184;padding:13px 5px;cursor:pointer;font-size:12px}.v2-quicklinks button:hover{border-color:#83b5ff;color:#166df5}.v2-empty{padding:28px 15px;text-align:center;color:#7b8ca9;font-size:13px}.v2-empty .ico{height:30px;width:30px;color:#aac1de;margin-bottom:5px}.info-lines{display:grid;gap:0}.info-lines>div,.info-line{display:flex;align-items:center;justify-content:space-between;gap:12px;border-bottom:1px solid #edf1f8;padding:10px 0;font-size:12px}.info-lines>div:last-child,.info-line:last-child{border-bottom:0}.info-lines span,.info-line span{color:#71819b}.info-lines strong,.info-line b{color:#304566;font-size:12px}.rail-list{margin-top:10px;display:grid;gap:7px}.rail-center{display:flex;align-items:center;gap:19px}.rail-center .v2-donut{margin:0;flex:none}.rail-center>b,.rail-center b{color:#2365cf;font-size:24px}.rail-center .note{margin-top:7px}.quote-card{background:#f5f9ff;border-radius:10px;padding:13px;margin-bottom:12px;font-size:12px;line-height:1.9;color:#516987;white-space:pre-wrap}.status-good{font-size:12px;background:#eafaf4;color:#109c73;padding:13px;border-radius:9px}.rail-alert{display:flex;align-items:flex-start;gap:10px;padding:9px 0;border-bottom:1px solid #eff3f8;font-size:12px}.rail-alert small{display:block;color:#8091ac;margin-top:6px}.rail-dot{width:9px;height:9px;flex:none;background:#3185f2;border-radius:50%;margin-top:3px}.rail-dot.red{background:#ec5c64}.rail-issue{border:0;text-align:left;background:#f5f8ff;color:#4f617f;border-radius:9px;padding:11px;width:100%;cursor:pointer;font-size:12px;margin:4px 0}.rail-issue:hover{color:#0767e8;background:#eaf3ff}.rail-issue small{display:block;margin-top:5px;color:#9caac0;font-size:11px}.tagline,.tags-row{display:flex;align-items:center;gap:6px;flex-wrap:wrap;margin-top:10px}.table-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.text-link{border:0;background:transparent;font-size:12px;color:#1670ef;padding:0 2px}.clamp-cell{max-width:300px;white-space:nowrap;text-overflow:ellipsis;overflow:hidden}.fill{flex:1;min-width:0}.seg-buttons{display:inline-flex;background:#f4f8fe;border:1px solid #e2ebf7;border-radius:8px;overflow:hidden}.seg-buttons button{border:0;background:transparent;padding:9px 13px;color:#7585a0;cursor:pointer;font-size:12px}.seg-buttons button.active{background:#e6f1ff;color:#086af2;font-weight:750}.pager{padding:15px 5px 0;display:flex;justify-content:space-between;gap:10px;align-items:center;font-size:12px;color:#7a8ca6}.pager>div{display:flex;gap:7px}
/* topic */
.topic-current{display:flex;gap:16px;align-items:center;padding:4px 0 15px}.topic-current h2{font-size:20px;color:#23375b}.topic-current .muted{font-size:12px}.topic-illustration{height:78px;width:96px;background:#eaf3ff;color:#237dff;border-radius:12px;display:grid;place-items:center;flex:none}.topic-illustration .ico{width:44px;height:44px}.feedback-box{background:#f1f7ff;border-radius:10px;padding:15px 17px;margin:0 0 13px}.feedback-box b{display:block;color:#1769db;font-size:12px}.feedback-box p{margin-top:8px;line-height:1.8;color:#4c6385;font-size:12px;white-space:pre-wrap}.v2-tiles{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.topic-tile{background:#fff;border:1px solid #e2eaf6;display:flex;gap:10px;text-align:left;padding:15px 12px;border-radius:10px;cursor:pointer;color:#263c60}.topic-tile:hover{border-color:#8bbaf8;background:#f8fbff}.topic-tile-icon{display:grid;place-items:center;border-radius:12px;background:#eaf4ff;color:#287cf0;font-size:22px;min-width:39px;height:39px}.topic-tile:nth-child(3n+2) .topic-tile-icon{background:#eafbf6;color:#15b586}.topic-tile:nth-child(3n) .topic-tile-icon{background:#fff2e7;color:#ef9c38}.topic-tile span:nth-child(2){display:flex;flex-direction:column;gap:5px}.topic-tile b{font-size:13px}.topic-tile small{font-size:11px;color:#8a98ac;line-height:1.5}.topic-tile .pill{align-self:flex-start;font-style:normal;font-size:10px}.v2-topic .toolbar .input{min-width:150px}.v2-topic .toolbar .select{max-width:140px}
/* progress */
.stage-overview{display:flex;align-items:center;gap:24px}.stage-overview .v2-donut{height:138px;width:138px}.stage-overview .v2-donut .donut-inner{width:106px;height:106px}.phase-line{margin:22px 0 7px;display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:2px}.phase{text-align:center;position:relative;font-size:12px}.phase:before{content:"";position:absolute;top:15px;height:2px;background:#cfd9e9;left:0;right:0;z-index:0}.phase:first-child:before{left:50%}.phase:last-child:before{right:50%}.phase.done:before,.phase.current:before{background:#6ca7fa}.phase span{display:grid;place-items:center;position:relative;margin:auto auto 9px;width:32px;height:32px;background:#d7e0ec;border:4px solid #fff;border-radius:50%;color:#fff;z-index:1}.phase.done span{background:#2379f0}.phase.current span{background:#fff;border-color:#2b83ff;color:#1670f3;box-shadow:0 0 0 2px #bedaff}.phase b{display:block}.phase small{display:block;margin-top:7px;color:#8d9ab0;font-size:10px}.board-bar{margin-bottom:14px}.board-bar .select{max-width:150px}.board-bar #new-task{margin-left:auto}.v2-kanban{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.v2-kanban .kanban-col{min-height:225px;padding:10px}.v2-kanban .kanban-col:nth-child(2){background:#f0f6ff}.v2-kanban .kanban-col:nth-child(3){background:#eefaf5}.v2-task{background:#fff;border:1px solid #e7edf7;border-radius:10px;padding:12px 10px;margin-bottom:9px}.task-title{display:flex;justify-content:space-between;gap:6px;font-size:12px}.task-meta{display:flex;align-items:center;gap:10px;color:#8d99ae;font-size:10px;margin:9px 0}.task-actions{display:flex;gap:7px;flex-wrap:wrap}.task-actions button{border:0;background:#f3f7ff;color:#2370dc;font-size:10px;padding:4px;border-radius:5px}.task-actions button:hover{background:#deedff}.v2-check{font-size:12px;color:#465a79;display:flex;align-items:center;gap:8px;padding:10px 2px;cursor:pointer}.v2-check input{accent-color:#1884f4}.timeline-list{display:grid;gap:2px}.timeline-row{display:flex;gap:15px;align-items:center;border-bottom:1px solid #eaf0f7;padding:11px 0;font-size:12px}.timeline-row>b{white-space:nowrap;color:#2076e7}.timeline-row>span:nth-child(2){flex:1}
/* plagiarism */
.v2-mini-panels{margin-top:14px;display:grid;grid-template-columns:1.5fr 1fr;gap:11px}.v2-mini-panels>div{background:#f7faff;border:1px solid #e9f0fb;border-radius:10px;padding:12px}.v2-mini-panels h3{font-size:13px;margin-bottom:7px}.trend-svg{max-width:100%;height:150px}.v2-plagiarism .v2-stat:first-child b{font-size:28px}
/* references */
.ref-toolbar .input{width:auto;flex:1}.ref-toolbar .select{width:132px}.switch-row{display:flex;align-items:center;gap:4px;font-size:11px;color:#7788a2}.switch-row input{accent-color:#18b887}.reference-line{border-bottom:1px solid #ebf1f8;display:flex;align-items:flex-start;gap:14px;padding:11px 1px;font-size:12px}.reference-line p{line-height:1.8;flex:1}.ref-index{color:#1e71e9;font-weight:800}.reference-line .text-link{flex:none}.v2-references .v2-rail .v2-donut{margin:20px auto}
/* library */
.v2-library-layout{display:grid;grid-template-columns:212px minmax(0,1fr) 262px;gap:12px;align-items:start}.v2-lit-main{display:grid;gap:13px;min-width:0}.lit-folders{padding:14px 12px}.lit-group{display:flex;align-items:center;justify-content:space-between;gap:8px;width:100%;border:0;border-radius:8px;padding:12px 10px;background:transparent;color:#485f80;font-size:12px;cursor:pointer;text-align:left}.lit-group b{color:#899bb6;font-weight:500}.lit-group.active{background:#e8f2ff;color:#0969f3;font-weight:800}.lit-group:hover{background:#f3f8ff}.lit-subheading{font-size:13px;color:#294369;margin:20px 9px 5px}.lit-table .title-button{border:0;background:transparent;color:#305786;font-size:12px;text-align:left;cursor:pointer;max-width:245px}.lit-table .title-button:hover{text-decoration:underline;color:#0069fb}.lit-table .selected-row td{background:#f3f9ff}.star-btn{border:0;background:transparent;font-size:21px;color:#a5b5cd}.star-btn.active{color:#f8ac19}.v2-literature .toolbar{gap:6px}.v2-literature .toolbar .input{min-width:150px}.v2-literature .toolbar .select{width:122px}.v2-literature .v2-rail .v2-stat b{font-size:19px}.meta-inline{font-size:12px;color:#7c90ab;margin-top:-6px;margin-bottom:12px}.lit-detail-grid{margin-top:16px;display:grid;grid-template-columns:1.7fr 1fr;gap:14px}.lit-detail-grid>div{background:#f6f9ff;padding:15px;border-radius:10px}.lit-detail-grid b{font-size:13px}.note-pre{white-space:pre-wrap;margin-top:10px}.lit-detail-grid .select{margin:13px 0}.v2-literature .v2-rail .tags-row button{border:0;cursor:pointer}
/* format */
.format-template{display:flex;align-items:center;gap:19px}.template-cover{font-family:serif;min-width:115px;height:137px;background:linear-gradient(170deg,#fefefe,#f3f7fc);border:7px solid #edf2f8;box-shadow:0 5px 12px #182f5315;text-align:center;padding:30px 8px;line-height:2;color:#324665;font-size:15px;font-weight:bold}.format-template .fill h3{font-size:18px;margin-bottom:11px}.format-template .fill p{font-size:12px;line-height:1.8}.template-actions{display:flex;flex-direction:column;gap:9px}.format-lower{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:13px}.format-tabs{display:flex;margin-bottom:13px}.format-tabs button{flex:1}.document-preview{max-width:360px;margin:0 auto;background:#fff;box-shadow:0 4px 22px #29436220;min-height:400px;border:1px solid #e1e5ec;position:relative;padding:62px 42px}.document-preview pre{white-space:pre-wrap;text-align:center;line-height:2.3;color:#1c2634;font-size:14px}.margin-marker{position:absolute;color:#1c7cf1;font-size:10px}.margin-marker.top{top:16px;left:50%;transform:translateX(-50%)}.margin-marker.bottom{bottom:16px;left:50%;transform:translateX(-50%)}
/* defense */
.v2-defence,.v2-defense{min-height:60vh}.v2-defense .v2-content>.v2-panel>.tabs{margin-top:-4px}.v2-defense .v2-content>.v2-panel>.v2-panel{border:0;padding:7px 0 2px;box-shadow:none}.v2-tabs{gap:5px}.v2-tabs .tab{font-weight:650}.qa-line{display:flex;gap:13px;align-items:center;border-bottom:1px solid #eaf0f8;padding:13px 4px;font-size:12px}.qa-line>div:first-child{flex:1}.qa-line p{color:#8595ab;margin-top:6px;line-height:1.6}.qa-line button{white-space:nowrap}
/* writing: three columns plus version history */
.writing-layout{grid-template-columns:220px minmax(0,1fr) 240px;gap:13px}.writing-layout>.card{box-shadow:var(--shadow)}.writing-editor{min-height:670px}.editor-area{margin:14px 20px 0;min-height:480px;background:#fff;box-shadow:0 2px 16px #2038580c;border:1px solid #f0f2f6;padding:38px 40px;font-family:SimSun,"宋体",serif;line-height:2.1;font-size:15px}.editor-toolbar{background:#f8fbff;gap:2px}.editor-toolbar button{min-width:29px}.chapter-item{padding:10px 8px}.chapter-item:before{content:'▤';color:#9baec9}.chapter-item.active:before{color:#287bee}.v2-history{margin-top:13px}.v2-history-cols{display:grid;grid-template-columns:1.5fr 1fr;gap:22px}.v2-history-cols h3{font-size:13px;margin-bottom:8px}.writing-note{background:#f8fbff;border-bottom:1px solid #ebf0f7;padding:11px;border-radius:6px;margin-bottom:5px;display:flex;gap:9px;align-items:start}.writing-note p{font-size:12px;flex:1;white-space:pre-wrap}.writing-note small{font-size:10px;color:#8898b0;white-space:nowrap}
/* Safety and responsive */
@media(min-width:1700px){.v2-split{grid-template-columns:minmax(0,1fr) 304px}.v2-library-layout{grid-template-columns:228px minmax(0,1fr) 280px}.main{padding:19px 23px}}
@media(max-width:1350px){.v2-split{grid-template-columns:minmax(0,1fr) 245px}.v2-library-layout{grid-template-columns:178px minmax(0,1fr) 228px}.v2-tiles{grid-template-columns:repeat(2,minmax(0,1fr))}.format-lower{grid-template-columns:1fr}.writing-layout{grid-template-columns:200px minmax(0,1fr)}.writing-layout>.metrics{grid-column:1/-1;grid-template-columns:repeat(2,minmax(0,1fr))}.v2-rail .v2-stat b{font-size:17px}}
@media(max-width:1040px){.sidebar{width:74px}.sidebar nav a{padding:0;justify-content:center;font-size:0}.main{margin-left:74px}.v2-library-layout{grid-template-columns:168px minmax(0,1fr)}.v2-library-layout>.v2-rail{grid-column:1/-1;grid-template-columns:repeat(3,minmax(0,1fr))}.v2-split{grid-template-columns:1fr}.v2-split>.v2-rail{grid-template-columns:repeat(2,minmax(0,1fr))}.v2-rail .v2-donut{margin:8px auto}.topbar{padding:0 15px}.brand{min-width:auto}.topbar .search-wrap{width:250px}.v2-content{gap:12px}}
@media(max-width:700px){.topbar{height:65px}.sidebar{top:auto;width:100%;bottom:0;height:60px}.sidebar nav a{font-size:9px}.main{margin:65px 0 60px;padding:10px}.v2-heading h1{font-size:21px}.v2-heading .crumb{display:none}.v2-heading .actions{width:100%}.v2-split>.v2-rail{grid-template-columns:1fr}.v2-library-layout{grid-template-columns:1fr}.v2-library-layout>.v2-rail{grid-column:auto;grid-template-columns:1fr}.lit-folders .lit-group{display:inline-flex;width:auto;padding:9px;margin:2px}.lit-folders .lit-subheading{display:none}.v2-tiles,.v2-mini-panels,.format-lower,.lit-detail-grid,.v2-kanban,.v2-history-cols{grid-template-columns:1fr}.stage-overview{align-items:flex-start;flex-direction:column}.phase-line{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.phase:before{display:none}.v2-stat b{font-size:19px}.v2-stats{gap:5px}.format-template{flex-wrap:wrap}.format-template .template-actions{flex-direction:row;flex-wrap:wrap}.writing-layout{grid-template-columns:1fr}.writing-layout>.metrics{grid-template-columns:1fr 1fr}.editor-area{margin:4px;padding:18px;min-height:340px}.brand strong{font-size:14px}.topbar .search-wrap{width:35px}.v2-page .card{padding:13px}.v2-page .toolbar .btn{flex:1}.v2-page .toolbar .select{max-width:100%}}
@media(prefers-reduced-motion:reduce){.page{animation:none}.btn,.progress-track>div{transition:none}}
[data-theme=dark] .v2-panel,[data-theme=dark] .v2-task,[data-theme=dark] .topic-tile,[data-theme=dark] .v2-page .card{background:var(--surface);color:var(--ink)}[data-theme=dark] .v2-stat,[data-theme=dark] .quote-card,[data-theme=dark] .lit-detail-grid>div,[data-theme=dark] .v2-mini-panels>div,[data-theme=dark] .rail-issue{background:var(--subtle)}[data-theme=dark] .topbar{background:#1a293e}[data-theme=dark] .sidebar{background:#18283d}[data-theme=dark] .v2-heading h1,[data-theme=dark] .section-heading h2{color:#e8f0ff}[data-theme=dark] .topic-current h2{color:#e9f2ff}