:root{--color-primary: #6bb6ff;--color-primary-dark: #5a9ee0;--color-secondary: #ff6b9d;--color-accent: #ffc107;--color-background: #eaedf2;--color-surface: #ffffff;--color-text: #252525;--color-text-light: #666666;--color-border: #e0e0e0;--shadow-small: 0 2px 8px rgba(0, 0, 0, .08);--shadow-medium: 0 4px 16px rgba(0, 0, 0, .1);--shadow-large: 0 8px 32px rgba(0, 0, 0, .12);--shadow-hover: 0 8px 24px rgba(0, 0, 0, .15);--radius-small: 4px;--radius-medium: 8px;--radius-large: 16px;--radius-round: 50px;--transition-default: .3s ease;--max-width: 1200px;--header-height: 60px}*{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth}body{font-family:Noto Sans JP,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background-color:var(--color-background);color:var(--color-text);line-height:1.83;min-height:100vh}a{color:var(--color-primary);text-decoration:none;transition:color var(--transition-default)}a:hover{color:var(--color-primary-dark)}img{max-width:100%;height:auto}h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.4;color:var(--color-text)}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}p{margin-bottom:1rem}.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 1rem}.text-center{text-align:center}.text-primary{color:var(--color-primary)}.text-secondary{color:var(--color-secondary)}.mt-1{margin-top:.5rem}.mt-2{margin-top:1rem}.mt-3{margin-top:1.5rem}.mt-4{margin-top:2rem}.mb-1{margin-bottom:.5rem}.mb-2{margin-bottom:1rem}.mb-3{margin-bottom:1.5rem}.mb-4{margin-bottom:2rem}.header[data-astro-cid-3ef6ksr2]{position:sticky;top:0;z-index:100;background-color:var(--color-surface);box-shadow:var(--shadow-small);height:var(--header-height)}.header-inner[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;justify-content:space-between;height:100%}.logo[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:700;color:var(--color-text)}.logo[data-astro-cid-3ef6ksr2]:hover{color:var(--color-primary)}.logo[data-astro-cid-3ef6ksr2] i[data-astro-cid-3ef6ksr2]{color:var(--color-primary);font-size:1.5rem}.nav-list[data-astro-cid-3ef6ksr2]{display:flex;list-style:none;gap:2rem}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--color-text);font-weight:500;padding:.5rem 0;position:relative}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:linear-gradient(90deg,var(--color-primary),var(--color-secondary));transition:width var(--transition-default)}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover:after{width:100%}.nav-list[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--color-primary)}.menu-toggle[data-astro-cid-3ef6ksr2]{display:none;background:none;border:none;font-size:1.5rem;color:var(--color-text);cursor:pointer}@media(max-width:768px){.nav[data-astro-cid-3ef6ksr2]{display:none}.menu-toggle[data-astro-cid-3ef6ksr2]{display:block}}.footer[data-astro-cid-sz7xmlte]{background-color:var(--color-surface);margin-top:4rem;padding:3rem 0 1.5rem;box-shadow:0 -2px 8px #0000000d}.footer-content[data-astro-cid-sz7xmlte]{display:grid;grid-template-columns:2fr 2fr 1fr;gap:2rem;padding-bottom:2rem;border-bottom:1px solid var(--color-border)}.footer-logo[data-astro-cid-sz7xmlte]{display:inline-flex;align-items:center;gap:.5rem;font-size:1.25rem;font-weight:700;color:var(--color-text);margin-bottom:1rem}.footer-logo[data-astro-cid-sz7xmlte] i[data-astro-cid-sz7xmlte],.footer-logo[data-astro-cid-sz7xmlte]:hover{color:var(--color-primary)}.footer-description[data-astro-cid-sz7xmlte]{color:var(--color-text-light);font-size:.9rem;line-height:1.7}.footer-links[data-astro-cid-sz7xmlte]{display:flex;gap:3rem}.footer-column[data-astro-cid-sz7xmlte] h4[data-astro-cid-sz7xmlte]{font-size:1rem;margin-bottom:1rem;color:var(--color-text)}.footer-column[data-astro-cid-sz7xmlte] ul[data-astro-cid-sz7xmlte]{list-style:none}.footer-column[data-astro-cid-sz7xmlte] li[data-astro-cid-sz7xmlte]{margin-bottom:.5rem}.footer-column[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{color:var(--color-text-light);font-size:.9rem}.footer-column[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{color:var(--color-primary)}.footer-social[data-astro-cid-sz7xmlte] h4[data-astro-cid-sz7xmlte]{font-size:1rem;margin-bottom:1rem}.social-links[data-astro-cid-sz7xmlte]{display:flex;gap:1rem}.social-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background-color:var(--color-background);color:var(--color-text-light);font-size:1.1rem;transition:all var(--transition-default)}.social-links[data-astro-cid-sz7xmlte] a[data-astro-cid-sz7xmlte]:hover{background:linear-gradient(135deg,var(--color-primary),var(--color-secondary));color:#fff;transform:translateY(-2px)}.footer-bottom[data-astro-cid-sz7xmlte]{padding-top:1.5rem;text-align:center}.footer-bottom[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{color:var(--color-text-light);font-size:.85rem;margin:0}@media(max-width:768px){.footer-content[data-astro-cid-sz7xmlte]{grid-template-columns:1fr;text-align:center}.footer-links[data-astro-cid-sz7xmlte],.social-links[data-astro-cid-sz7xmlte]{justify-content:center}}