:root{--bg:#08151c;--panel:#10232d;--panel2:#132b35;--line:#24424c;--text:#f0f5f4;--muted:#a4b8bd;--accent:#73d5d0;--max:1200px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}.site-header{height:78px;padding:0 max(24px,calc((100vw - var(--max))/2));border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:.04em}.brand-mark{color:var(--accent);font-size:26px}.brand small{display:block;color:var(--muted);font-size:9px;letter-spacing:.18em;font-weight:500}.site-header nav{display:flex;gap:26px;color:var(--muted);font-size:14px}.site-header nav a:hover,.site-header nav .active{color:var(--accent)}main{max-width:var(--max);margin:auto;padding:0 24px}.hero{display:grid;grid-template-columns:1fr 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