:root{--ink: #241f1a;--muted: #6b655c;--line: #e5ded3;--paper: #fbf8f2;--panel: #f4efe6;--accent: #b3402a;--accent-dark: #8f2f1e}*{box-sizing:border-box}body{margin:0;font-family:Georgia,Times New Roman,serif;color:var(--ink);background:var(--paper)}button,input,select,textarea{font-family:inherit}.ec{min-height:100vh;display:flex;flex-direction:column}.ec-top{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding:26px 36px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fffdf9,#f7f1e7)}.brand .eyebrow{display:block;font-family:Helvetica Neue,Arial,sans-serif;font-size:11px;letter-spacing:.18em;color:var(--accent);margin-bottom:6px}.brand h1{margin:0;font-size:30px;font-weight:600;letter-spacing:-.01em}.brand p{margin:6px 0 0;color:var(--muted);font-size:14px}.ec-actions{display:flex;gap:10px}.btn{border:1px solid var(--line);background:#fff;padding:9px 16px;border-radius:999px;font-size:13px;cursor:pointer;transition:.15s}.btn.ghost:hover{border-color:var(--ink)}.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn.primary:hover{background:var(--accent-dark)}.btn.block{width:100%}.btn.sm{padding:6px 12px;font-size:12px}.btn.active{background:var(--ink);color:#fff}.ec-body{display:grid;grid-template-columns:380px 1fr;gap:0;flex:1;min-height:0}.ec-side{border-right:1px solid var(--line);background:var(--panel);padding:24px;overflow-y:auto}.ec-side section{margin-bottom:26px}.ec-side h2{font-family:Helvetica Neue,Arial,sans-serif;font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 14px}.field{display:block;margin-bottom:12px}.field .label{display:block;font-size:12px;color:var(--muted);margin-bottom:5px}.field input,.field select{width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:8px;background:#fff}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}.section-head h2{margin:0}.chapter-list{display:flex;flex-direction:column;gap:12px}.chapter-item{border:1px solid var(--line);border-radius:10px;background:#fff;padding:12px}.chapter-row{display:flex;align-items:center;gap:8px;margin-bottom:10px}.ch-num{width:22px;height:22px;border-radius:50%;background:var(--ink);color:#fff;font-size:11px;display:grid;place-items:center;flex-shrink:0}.chapter-row input{flex:1;border:1px solid var(--line);border-radius:7px;padding:7px 9px;font-size:13px}.ch-ops{display:flex;gap:4px}.ch-ops button{border:1px solid var(--line);background:#fff;width:26px;height:26px;border-radius:6px;cursor:pointer}.ch-ops button:disabled{opacity:.3;cursor:default}.chapter-item textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:10px;font-size:13px;line-height:1.55;resize:vertical}.ec-stage{position:relative;display:flex;flex-direction:column;min-height:0;background:#eee7dc}.ec-toolbar{position:absolute;top:0;left:0;right:0;z-index:5;display:flex;align-items:center;gap:8px;padding:12px 18px;background:#fbf8f2f0;border-bottom:1px solid var(--line)}.ec-status{margin-left:auto;color:var(--muted);font-size:12px}.ec-canvas{flex:1;min-height:0;display:grid;place-items:center;padding:76px 24px 24px}.ec-area{width:100%;max-width:760px;height:calc(100vh - 190px);background:var(--paper);border-radius:6px;box-shadow:0 18px 50px #241f1a2e;overflow:hidden}.ec-empty{position:absolute;top:90px;right:24px;bottom:24px;left:24px;display:grid;place-items:center;color:var(--muted);font-size:14px;text-align:center}