
:root{--red:#d71920;--red-dark:#9f1017;--red-soft:#fff0f0;--gold:#d6a642;--gold-soft:#fff8e6;--text:#242424;--muted:#666;--bg:#fff8f6;--white:#fff;--shadow:0 18px 45px rgba(150,22,24,.12);--radius:22px;--max:1120px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--text);background:radial-gradient(circle at top left,rgba(215,25,32,.08),transparent 34%),linear-gradient(180deg,#fff8f6 0%,#fff 44%,#fff8f6 100%);line-height:1.8}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-bottom:1px solid rgba(215,25,32,.12)}.header-inner{max-width:var(--max);margin:0 auto;padding:14px 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