:root{--ink: #1A5A54;--ink-2: #144843;--ink-3: #2b7a72;--bg: #ffffff;--bg-soft: #f6f7f6;--line: #e2e4e2;--line-2: #cfd3cf;--text: #1a1a1a;--muted: #6b6f6b;--warn: #b45a1f;--danger: #a33131;--shadow: 0 1px 2px rgba(20, 45, 40, .04), 0 8px 24px rgba(20, 45, 40, .06)}*{box-sizing:border-box}html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:Noto Sans JP,Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-weight:400;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button,input,textarea{font-family:inherit}.topbar{background:var(--ink);border-bottom:1px solid rgba(255,255,255,.08);position:sticky;top:0;z-index:40;color:#fff}.topbar-inner{max-width:1240px;margin:0 auto;padding:16px 32px;display:flex;align-items:center;justify-content:space-between}.brand{display:flex;align-items:baseline;gap:12px;color:#fff}.brand .b1{font-family:Inter,sans-serif;font-weight:700;letter-spacing:.16em;font-size:18px;color:#fff}.brand 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