:root{--brand: #38B6FF;--brand-dark: #1a9fe0;--brand-light: #e8f4fd;--bg: #ffffff;--bg-alt: #f8fafc;--text: #1a1a2e;--text-muted: #64748b;--border: #e2e8f0;--success: #22c55e;--error: #ef4444;--line-green: #06C755;--radius: 8px;--radius-lg: 12px;--max-width: 1200px}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Noto Sans JP,sans-serif;color:var(--text);background:var(--bg);line-height:1.6}a{color:var(--brand-dark);text-decoration:none}a:hover{text-decoration:underline}.container{max-width:var(--max-width);margin:0 auto;padding:0 24px}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 24px;border-radius:var(--radius);border:none;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s}.btn-primary{background:var(--brand);color:#fff}.btn-primary:hover{background:var(--brand-dark);text-decoration:none}.btn-outline{background:transparent;color:var(--brand-dark);border:2px solid 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