:root{color-scheme:light;--bg: #f6f2ea;--bg-soft: #f0eade;--surface: rgba(255, 255, 255, .8);--surface-strong: rgba(255, 255, 255, .94);--surface-muted: rgba(248, 244, 236, .88);--border: rgba(31, 41, 55, .1);--border-strong: rgba(31, 41, 55, .18);--text: #1f2937;--muted: #6b7280;--accent: #1f2937;--accent-soft: #8b5e3c;--shadow: 0 10px 30px rgba(15, 23, 42, .06);--radius-xl: 24px;--radius-lg: 18px;--radius-md: 14px;--max-width: 1160px;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;min-height:100vh;color:var(--text);background:radial-gradient(circle at top left,rgba(255,255,255,.9),transparent 30%),radial-gradient(circle at 90% 10%,rgba(139,94,60,.06),transparent 22%),linear-gradient(180deg,var(--bg) 0%,#fbfaf7 36%,var(--bg) 100%);font-family:Hiragino Kaku Gothic ProN,Yu Gothic,Noto Sans JP,Segoe 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