:root{--bg: #FAFBFC;--bg-card: #FFFFFF;--text: #1A2332;--text-muted: #5A6878;--accent: #0F4C81;--accent-hover: #0B3862;--accent-soft: #E8A5B8;--border: #E1E7EE;--radius: 10px;--font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", system-ui, sans-serif}*{box-sizing:border-box}html{font-size:16px;line-height:1.7}body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-family);-webkit-text-size-adjust:100%}a{color:var(--accent);text-decoration:none;border-bottom:1px solid transparent}a:hover{border-bottom-color:var(--accent)}h1,h2,h3{line-height:1.35}h1{font-size:2rem;margin-top:0}h2{font-size:1.4rem;margin-top:2rem}h3{font-size:1.15rem}main{max-width:960px;margin:0 auto;padding:2rem 1.25rem 4rem}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.75rem;margin-bottom:1.25rem}.hero{background:linear-gradient(135deg,var(--accent) 0%,#1e6bb8 100%);color:#fff;padding:3rem 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.hero-kicker{font-size:.85rem;letter-spacing:.15em;text-transform:uppercase;opacity:.85;margin:0;position:relative;z-index:1}.article-hero .hero-title{font-size:1.35rem;font-weight:600;margin:.5rem 0 0;position:relative;z-index:1;line-height:1.5}