:root{--ink:#26334a;--muted:#6d7786;--paper:#fff;--bg:#f2f4f6;--line:#dce1e6;--accent:#345d64;--soft:#eaf1ef}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.65 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif}button,a,select,textarea{font:inherit}button,a,select{touch-action:manipulation}button{cursor:pointer;color:inherit;background:white;border:1px solid var(--line);border-radius:7px;padding:7px 12px}button:hover{border-color:var(--accent);background:var(--soft)}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #70a99b;outline-offset:3px}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}[hidden]{display:none!important}.topbar{height:76px;padding:0 30px;display:flex;align-items:center;gap:30px;border-bottom:1px solid var(--line);background:white}.back{font-size:13px;color:var(--muted)}.identity{font-weight:650;flex:1}.identity span{font-weight:400;color:var(--muted);margin-left:12px}.top-actions{display:flex;align-items:center;gap:22px}.top-actions a{font-size:13px}#open-notes{background:var(--ink);color:white;border-color:var(--ink);min-width:100px}#open-notes span{margin-left:15px}.workspace{display:grid;grid-template-columns:238px minmax(0,1fr);min-height:calc(100vh - 76px)}.page-list{padding:32px 22px;background:#fafbfc;border-right:1px solid var(--line)}.eyebrow{font-size:10px;font-weight:700;letter-spacing:.17em;color:var(--accent)}h1{font-size:26px;font-weight:550;margin:6px 0}.nav-hint,.nav-foot{font-size:12px;color:var(--muted)}#page-buttons{display:flex;flex-direction:column;gap:7px;margin:32px 0}#page-buttons button{display:flex;align-items:flex-start;text-align:left;gap:12px;border:1px solid transparent;background:transparent;padding:11px 8px;font-size:13px}#page-buttons .num{font-variant-numeric:tabular-nums;color:#8e98a5}#page-buttons [aria-current="page"]{background:var(--soft);border-color:#c8d8d2;color:#234f43}#page-buttons [aria-current="page"] .num{color:var(--accent)}.nav-foot{margin-top:45px}.presentation{padding:30px 4vw;display:flex;flex-direction:column;justify-content:center;min-width:0;align-self:start;min-height:calc(100vh - 76px)}.stage-top{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px;margin-bottom:14px}.stage-top button{padding:3px 12px;font-size:12px}.slide-stage{position:relative;aspect-ratio:16/9;background:var(--paper);border:1px solid var(--line);box-shadow:0 10px 40px #26334a06;display:flex;align-items:center;padding:8%;overflow:hidden}.stage-number{position:absolute;right:6%;top:7%;font-size:clamp(28px,5vw,72px);font-weight:300;line-height:1;color:#e9edef}.empty-slide{z-index:1}.empty-slide h2{font-size:clamp(23px,3vw,42px);font-weight:550;line-height:1.4;max-width:650px;margin:15px 0}.empty-slide p{color:var(--muted);font-size:13px}.empty-slide button{border:0;border-bottom:1px solid #b2c4be;border-radius:0;padding:9px 0;background:transparent;margin-top:14px;font-size:13px}.stage-brand{position:absolute;left:8%;bottom:7%;font-size:9px;letter-spacing:.16em;color:#919ba7}.slide-controls{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);margin-top:18px;gap:12px}.slide-controls>div{display:flex;align-items:center;gap:18px}.slide-controls button{width:40px}.notes-panel{position:fixed;right:0;top:0;bottom:0;width:min(560px,100vw);z-index:10;background:white;box-shadow:-10px 0 60px #26334a1c;display:flex;flex-direction:column;border-left:1px solid var(--line)}.notes-header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px 14px;border-bottom:1px solid var(--line);gap:12px}.notes-header h2{font-size:22px;line-height:1.4;margin:3px 0}.notes-header>div:last-child{display:flex;gap:8px}.notes-header button{font-size:12px}#close-notes{font-size:22px;line-height:1;padding:5px 9px}.notes-select{display:flex;gap:12px;align-items:center;padding:18px 24px 4px;font-size:12px}.notes-select select{min-width:0;flex:1;padding:7px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--ink)}#notes-time{white-space:nowrap;color:var(--muted)}.notes-title{margin:12px 24px 0;font-size:18px;font-weight:600}.notes-tools{padding:14px 24px;display:flex;flex-wrap:wrap;gap:8px}.notes-tools button{font-size:12px}.primary{background:var(--accent);color:white;border-color:var(--accent)}.primary:hover{background:#254a50;color:white}.notes-reader{flex:1;overflow:auto;min-height:0;padding:0 26px 20px;font-size:17px;line-height:1.95;white-space:pre-wrap}.notes-reader p{margin:8px 0 22px}#notes-editor{flex:1;resize:none;min-height:140px;border:1px solid var(--line);border-radius:6px;margin:0 24px 12px;padding:16px;font-size:16px;line-height:1.9;color:var(--ink);background:#fcfcfa}.notes-footer{padding:10px 24px 14px;border-top:1px solid var(--line)}.notes-footer p{font-size:11px;color:var(--muted);margin:3px 0}.notes-footer #save-status{font-size:12px;color:var(--accent);margin-bottom:5px}.conflict{margin:0 24px 12px;padding:12px;background:#fff4da;color:#735320;font-size:12px}.conflict p{margin:0 0 8px}.conflict button{font-size:11px;margin-right:6px}.sr-only{position:absolute;clip:rect(0,0,0,0);width:1px;height:1px;overflow:hidden}.notes-window .topbar,.notes-window .workspace{display:none}.notes-window .notes-panel{position:static;width:100%;height:100dvh;border:0;box-shadow:none}.notes-window #close-notes,.notes-window #popout{display:none}.notes-window .notes-reader{font-size:19px}.presentation:fullscreen{padding:4vh 6vw;background:var(--bg);height:100vh;width:100vw;min-height:0}.presentation:fullscreen .slide-stage{max-height:80vh;width:100%;aspect-ratio:16/9}.presentation:fullscreen .key-help{display:none}@media(min-width:1350px){body.notes-open:not(.notes-window) .workspace,body.notes-open:not(.notes-window) .topbar{margin-right:560px}body.notes-open .workspace{grid-template-columns:190px minmax(0,1fr)}body.notes-open .presentation{padding:25px}body.notes-open .key-help{display:none}body.notes-open .topbar{gap:15px;padding:0 18px}body.notes-open .identity span{display:none}}@media(max-width:800px){.topbar{height:auto;min-height:70px;padding:14px 18px;gap:14px;flex-wrap:wrap}.identity span{display:none}.top-actions{gap:14px}.top-actions a{font-size:12px}.workspace{display:block;min-height:0}.page-list{padding:18px;border-right:0;border-bottom:1px solid var(--line)}.page-list h1{font-size:20px}.page-list .eyebrow,.nav-hint,.nav-foot{display:none}#page-buttons{flex-direction:row;overflow:auto;gap:5px;margin:12px 0 0}#page-buttons button{flex:0 0 auto;padding:7px 10px}#page-buttons .page-label{display:none}.presentation{padding:22px 18px;min-height:0}.key-help{display:none}.empty-slide h2{font-size:23px}.empty-slide p{font-size:11px}.stage-number{font-size:32px}.stage-brand{font-size:7px}.notes-header{padding:16px 18px}.notes-select{padding:14px 18px 0}.notes-title{margin:12px 18px 0}.notes-tools{padding:12px 18px}.notes-reader{padding:0 20px 16px}#notes-editor{margin:0 18px 10px}.notes-footer{padding:10px 18px}.notes-select select{font-size:12px}.conflict{margin:0 18px 12px}}