:root{color:#262420;--paper:#fffefa;--line:#e4dfd5;--muted:#6b655b;--accent:#f5ab8b;--ink:#302e29;background:#f7f5f0;font-family:Instrument Sans,Yu Gothic UI,Hiragino Sans,Meiryo,sans-serif}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0}.top{border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;padding:15px max(24px,50% - 528px);display:flex}.brand{white-space:nowrap;align-items:center;gap:10px;font-size:21px;font-weight:800;display:flex}.mark{background:var(--accent);border-radius:10px;place-items:center;width:35px;height:35px;font-size:24px;display:grid}.brand-en{color:var(--muted);letter-spacing:.19em;font-size:11px}.private{color:var(--muted);white-space:nowrap;font-size:12px}.private:before{content:"";background:#6d8965;border-radius:50%;width:7px;height:7px;margin-right:7px;display:inline-block}main{max-width:1104px;margin:auto;padding:38px 24px 60px}.intro{margin-bottom:27px}h1{letter-spacing:-.05em;margin:0 0 8px;font-size:clamp(27px,5vw,45px)}h1 em{color:#a0442b;font-style:normal}.intro p{color:var(--muted);margin:0;font-size:14px;line-height:1.65}.editor{grid-template-columns:minmax(0,1.34fr) minmax(0,1fr);align-items:start;gap:20px;display:grid}.panel{background:var(--paper);border:1px solid var(--line);border-radius:17px}.preview{padding:17px;position:sticky;top:12px}.section-head{justify-content:space-between;align-items:center;gap:8px;margin-bottom:12px;display:flex}h2{margin:0;font-size:15px}.section-head span{color:var(--muted);font-size:11px}.stage{background:radial-gradient(at 50% 35%,#3c3933,#24231f 75%);border-radius:11px;place-items:center;height:clamp(270px,52vh,490px);display:grid;overflow:hidden}.stage.drag-over{outline:3px solid var(--accent);outline-offset:-3px}.stage canvas{width:auto;max-width:100%;height:auto;max-height:100%;display:block}.stage.editing canvas{cursor:grab;touch-action:none}.stage.editing 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