:root{--bg-primary: #fbfbfc;--bg-secondary: #f5f5f4;--bg-card: #ffffff;--bg-card-hover: #f9f9f8;--text-primary: #1a1a1a;--text-secondary: #525252;--text-muted: #a3a3a3;--accent: #1e3a5f;--accent-light: #3d5a80;--accent-warm: #7c6a5d;--border: #f0f0f0;--border-hover: #e0e0e0;--radius: 12px;--font-serif: "Inter", sans-serif;--font-sans: "IBM Plex Sans JP", "Inter", sans-serif;--shadow: 0 1px 3px rgba(0, 0, 0, .03), 0 1px 2px rgba(0, 0, 0, .04);--shadow-hover: 0 3px 8px rgba(0, 0, 0, .06)}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);line-height:1.7;min-height:100vh}h1,h2,h3,h4,h5,h6{font-weight:500}.main-content{max-width:1200px;margin:0 auto;padding:5rem 2rem 4rem;width:100%}.main-content.subpage{padding-top:8rem}@media(max-width:900px){.main-content{padding:6rem 1.5rem 3rem}}@media(max-width:600px){.main-content{padding:3.5rem .5rem 2rem}}.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.content-section p{margin-bottom:1rem;color:var(--text-secondary);line-height:1.8}.content-section ul{list-style:disc;margin-left:1.5rem;color:var(--text-secondary);line-height:1.8}.content-section a{color:var(--accent);text-decoration:underline}.content-section h3{font-size:1.1rem;color:var(--accent);margin-top:1.5rem;margin-bottom:.8rem}header[data-astro-cid-3ef6ksr2]{position:fixed;top:0;left:0;right:0;z-index:100;padding:1rem 2rem;background:#fafafaeb;backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}header[data-astro-cid-3ef6ksr2] nav[data-astro-cid-3ef6ksr2]{max-width:1160px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;gap:1.5rem}.logo[data-astro-cid-3ef6ksr2]{font-family:var(--font-sans);font-size:1rem;font-weight:500;color:var(--text-primary);text-decoration:none;letter-spacing:-.01em;z-index:101}.logo-text[data-astro-cid-3ef6ksr2]{display:block;line-height:1.2}.logo-dept[data-astro-cid-3ef6ksr2]{font-size:.65rem;color:var(--text-muted);display:block;margin-top:1px}.nav-right[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:1.5rem;margin-left:auto}.nav-links[data-astro-cid-3ef6ksr2]{display:flex;gap:.1rem;list-style:none;margin:0;padding:0}.nav-links[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{color:var(--text-secondary);text-decoration:none;font-size:.9rem;font-weight:400;transition:color .2s,background-color .2s,border-color .2s;position:relative;padding:.4rem .75rem .32rem;border-radius:999px;border:1.5px solid transparent;display:inline-flex;align-items:center;justify-content:center;line-height:1.15}.nav-links[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--accent)}.nav-links[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2].active{color:var(--accent);border-color:var(--accent)}.header-actions[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.85rem}.lang-switch[data-astro-cid-3ef6ksr2]{display:flex;align-items:center;gap:.35rem;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--text-muted)}.lang-switch[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{text-decoration:none;color:var(--text-muted);font-weight:600;padding:.15rem .35rem;border-radius:999px;transition:color .2s ease,background .2s ease}.lang-switch[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2].active{color:var(--text-primary);background:#0000000f}.lang-switch[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]:hover{color:var(--text-primary)}.lang-switch[data-astro-cid-3ef6ksr2] .divider[data-astro-cid-3ef6ksr2]{color:var(--text-muted);font-weight:500}.mobile-controls[data-astro-cid-3ef6ksr2]{display:flex;align-items:center}.hamburger[data-astro-cid-3ef6ksr2]{display:none;flex-direction:column;justify-content:space-between;width:24px;height:18px;background:none;border:none;cursor:pointer;padding:0;z-index:101}.hamburger[data-astro-cid-3ef6ksr2] span[data-astro-cid-3ef6ksr2]{display:block;width:100%;height:2px;background-color:var(--text-primary);transition:all .3s ease}.mobile-menu[data-astro-cid-3ef6ksr2]{position:fixed;top:0;left:0;width:100%;height:100vh;background:var(--bg-primary);display:flex;flex-direction:column;justify-content:center;align-items:center;gap:2rem;opacity:0;pointer-events:none;transition:opacity .3s ease;z-index:100}.mobile-menu[data-astro-cid-3ef6ksr2].active{opacity:1;pointer-events:auto}.mobile-menu[data-astro-cid-3ef6ksr2] a[data-astro-cid-3ef6ksr2]{font-size:1.5rem;color:var(--text-primary);text-decoration:none;font-weight:500}.hamburger[data-astro-cid-3ef6ksr2].active span[data-astro-cid-3ef6ksr2]:nth-child(1){transform:translateY(8px) rotate(45deg)}.hamburger[data-astro-cid-3ef6ksr2].active span[data-astro-cid-3ef6ksr2]:nth-child(2){opacity:0}.hamburger[data-astro-cid-3ef6ksr2].active span[data-astro-cid-3ef6ksr2]:nth-child(3){transform:translateY(-8px) rotate(-45deg)}@media(max-width:1070px){header[data-astro-cid-3ef6ksr2]{padding:.85rem 1.5rem}.nav-right[data-astro-cid-3ef6ksr2]{gap:.75rem}.nav-links[data-astro-cid-3ef6ksr2]{display:none}.lang-switch[data-astro-cid-3ef6ksr2]{font-size:.72rem;letter-spacing:.05em}.hamburger[data-astro-cid-3ef6ksr2]{display:flex}}@media(max-width:600px){header[data-astro-cid-3ef6ksr2]{padding:.85rem .5rem}.nav-right[data-astro-cid-3ef6ksr2]{gap:.75rem}.nav-links[data-astro-cid-3ef6ksr2]{display:none}.lang-switch[data-astro-cid-3ef6ksr2]{font-size:.72rem;letter-spacing:.05em}.hamburger[data-astro-cid-3ef6ksr2]{display:flex}}footer[data-astro-cid-sz7xmlte]{max-width:1200px;margin:0 auto;padding:2.5rem 2rem;border-top:1px solid var(--border);text-align:center}footer[data-astro-cid-sz7xmlte] p[data-astro-cid-sz7xmlte]{font-size:.75rem;color:var(--text-muted)}