:root{--header-height:68px;--accent:#e3262e;--accent-hover:#c91d26;--accent-soft:#fff1f2;--ink:#222225;--ink-strong:#101012;--muted:#66666f;--muted-light:#898993;--surface:#fff;--canvas:#f6f6f7;--canvas-strong:#ececee;--line:#dedee2;--line-strong:#c8c8ce;--success:#14804a;--success-soft:#ebf8f1;--warning:#8a5a00;--warning-soft:#fff8e8;--danger-soft:#fff0f1;--shadow-sm:0 2px 8px #1414180f;--shadow-md:0 16px 40px #1414181c;--shadow-lg:0 26px 70px #14141826;color:var(--ink);font-synthesis:none;text-rendering:optimizelegibility;font-family:Inter,Pretendard,Noto Sans KR,Apple SD Gothic Neo,system-ui,-apple-system,BlinkMacSystemFont,Segoe 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var(--line);grid-template-columns:repeat(4,1fr);width:min(1120px,100%);margin:50px auto 0;display:grid}.tool-benefit-section article{border-right:1px solid var(--line);text-align:left;min-height:170px;padding:28px 24px}.tool-benefit-section article:last-child{border-right:0}.tool-benefit-section article>.ui-icon{width:26px;height:26px;color:var(--accent);margin-bottom:20px}.tool-benefit-section strong{color:var(--ink-strong);font-size:14px;display:block}.tool-benefit-section p{color:var(--muted);margin:7px 0 0;font-size:12px;line-height:1.6}.reader-workspace{height:calc(100vh - var(--header-height));height:calc(100dvh - var(--header-height));background:#e4e4e7;grid-template-columns:214px minmax(0,1fr);min-height:520px;display:grid;overflow:hidden}.reader-workspace:fullscreen,.reader-workspace.is-fullscreen{width:100vw;height:100dvh}.reader-sidebar{z-index:22;background:#f7f7f8;border-right:1px solid 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12px;display:grid}.reader-toolbar-file,.reader-page-controls,.reader-view-controls{align-items:center;gap:6px;display:flex}.reader-toolbar-file{min-width:0}.reader-page-controls{justify-content:center}.reader-view-controls{justify-content:flex-end}.mobile-sidebar-button{display:none!important}.pdf-file-badge{background:var(--accent-soft);width:36px;height:36px;color:var(--accent);border-radius:5px;place-items:center;font-size:10px;font-weight:900;display:grid}.reader-file-copy{gap:1px;min-width:0;margin-right:4px;display:grid}.reader-file-copy strong{max-width:280px;color:var(--ink-strong);text-overflow:ellipsis;white-space:nowrap;font-size:12px;overflow:hidden}.reader-file-copy span{color:var(--muted);font-size:10px}.toolbar-button{border-radius:5px;justify-content:center;align-items:center;gap:6px;min-height:38px;padding:0 10px;font-size:11px;font-weight:760;display:inline-flex}.toolbar-button.icon-only{width:38px;padding:0}.toolbar-button 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#14141838}.reader-stage-message{z-index:5;color:#fff;background:#141418e6;border-radius:5px;grid-area:1/1;width:max-content;max-width:calc(100% - 24px);margin:0 auto;padding:9px 13px;font-size:11px;position:sticky;top:12px}.reader-statusbar{min-height:30px;color:var(--muted);background:#f7f7f8;border-top:1px solid #d2d2d7;justify-content:space-between;align-items:center;gap:12px;padding:0 14px;font-size:10px;display:flex}.reader-statusbar span{align-items:center;gap:5px;display:inline-flex}.reader-statusbar .ui-icon{width:14px;height:14px;color:var(--success)}.reader-sidebar-scrim{display:none}.merge-workspace-page{min-height:calc(100vh - var(--header-height));background:#f6f6f7;padding:34px 24px 80px}.merge-workspace-header{justify-content:space-between;align-items:flex-end;gap:20px;width:min(1660px,100%);margin:0 auto 22px;display:flex}.merge-workspace-header h1{color:var(--ink-strong);letter-spacing:-.04em;margin:7px 0 2px;font-size:34px;line-height:1.15}.merge-workspace-header 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