:root{color:#25322f;font-synthesis:none;--ink:#25322f;--muted:#68736f;--line:#dfe3de;--panel:#fff;--green:#247b68;--green-soft:#e6f2ed;--red:#b45151;--red-soft:#f8eaea;--navy:#273f48;background:#f5f4ef;font-family:Inter,Noto Sans JP,Hiragino Kaku Gothic ProN,system-ui,sans-serif;line-height:1.6}*{box-sizing:border-box}body{background:#f5f4ef;min-width:320px;min-height:100vh;margin:0}button,input,select,textarea{font:inherit}button{color:inherit}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline-offset:2px;outline:3px solid #247b6838}.app-shell{width:min(1180px,100%);margin:0 auto;padding:0 28px}.back-link{color:#7c8783;font-size:11px;text-decoration:none;transition:color .15s}.back-link:hover{color:var(--green);text-decoration:underline}.back-link--top{margin:14px 4px 0;display:inline-block}.app-header{justify-content:space-between;align-items:center;padding:16px 4px 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