:root{--bg:#ffffff;--surface:#ffffff;--surface-2:#f6f5f3;--line:#e6e4df;--line-2:#d6d3cc;--ink:#1a1a1a;--ink-2:#55534d;--ink-3:#84817a;--accent:#1a1a1a;--r:13px;--r-sm:10px;--font:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}[hidden]{display:none!important}html,body{margin:0;padding:0;background:var(--bg);color:var(--ink);font-family:var(--font);-webkit-font-smoothing:antialiased;font-size:17px;line-height:1.65;overscroll-behavior-y:none}body{padding-bottom:92px;min-height:100vh}header{position:sticky;top:0;z-index:30;background:#ffffffe6;backdrop-filter:saturate(120%) blur(12px);border-bottom:1px solid var(--line);padding:16px 18px 12px;display:flex;align-items:center;justify-content:space-between;gap:12px}.hdr-sync{flex-shrink:0;width:42px;height:42px;border-radius:50%;border:1px solid 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