:root{--navy:#092b50;--blue:#0b63ce;--cyan:#00a7c8;--ink:#15283b;--muted:#607184;--line:#dbe6ef;--soft:#f3f8fc;--white:#fff;--gold:#b89442;--shadow:0 18px 50px rgba(9,43,80,.11)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;background:#fff;line-height:1.75;font-size:16px}a{color:inherit;text-decoration:none}button,input{font:inherit}.wrap{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}.header-inner{height:76px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--navy);letter-spacing:.02em}.mark{width:37px;height:37px;border:3px solid var(--blue);border-radius:9px;position:relative;background:linear-gradient(135deg,#fff,#eaf7ff)}.mark:before,.mark:after{content:"";position:absolute;background:var(--cyan)}.mark:before{width:18px;height:3px;left:6px;top:14px}.mark:after{height:18px;width:3px;left:14px;top:6px}.brand small{display:block;font-size:10px;color:#74869a;font-weight:600;letter-spacing:.12em}.nav{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:14px;font-weight:700}.nav a:hover{color:var(--blue)}.actions{display:flex;gap:10px;margin-left:8px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:8px;border:1px solid var(--blue);font-weight:800;color:var(--blue);background:#fff;cursor:pointer}.btn.primary{color:#fff;background:var(--blue);box-shadow:0 8px 22px 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