*, *::before, *::after{margin:0;padding:0;box-sizing:border-box;}:root{--bg:#f3f6fb;--surface:#ffffff;--text:#0f172a;--muted:#475569;--border:#e2e8f0;--shadow:0 14px 40px rgba(15, 23, 42, 0.06);--accent:#c41e3a;--accent2:#a01a2f;}[data-theme="dark"]{--bg:#0b1220;--surface:#0f172a;--text:#e5e7eb;--muted:#cbd5e1;--border:#243244;--shadow:0 18px 44px rgba(0, 0, 0, 0.45);--accent:#f87171;--accent2:#fca5a5;}html{scroll-behavior:smooth;}body{font-family:system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;line-height:1.7;color:var(--text);background-color:var(--bg);max-width:1120px;margin:0 auto;padding:1.5rem 1.5rem 3rem;}header{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:0.5rem 1.5rem;background:color-mix(in srgb, var(--surface) 92%, transparent);border-bottom:1px solid var(--border);padding:1.25rem 0;margin-bottom:2.5rem;position:sticky;top:0;backdrop-filter:blur(10px);z-index:10;}nav{display:flex;gap:2rem;justify-content:center;flex-wrap:wrap;}nav a{color:var(--accent);text-decoration:none;font-weight:500;font-size:1rem;transition:color 0.12s ease;}nav a:hover{color:var(--accent2);}.theme-toggle{margin-left:0.5rem;display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:999px;border:1px solid var(--border);background:color-mix(in srgb, var(--surface) 92%, transparent);color:var(--text);cursor:pointer;transition:transform 0.12s ease, background-color 0.12s ease, border-color 0.12s ease;}.theme-toggle:hover{transform:translateY(-1px);}.theme-toggle:active{transform:translateY(0);}main{padding:0 0 3rem;}article{background:var(--surface);padding:2.5rem;border-radius:20px;box-shadow:var(--shadow);margin-bottom:2rem;}h1, h2, h3{color:var(--text);}h1{font-size:2.25rem;margin-bottom:1.25rem;line-height:1.3;font-weight:700;}h2{font-size:1.65rem;margin-top:2.5rem;margin-bottom:1rem;font-weight:600;line-height:1.4;}h3{font-size:1.3rem;margin-top:1.75rem;margin-bottom:0.75rem;font-weight:600;}p{margin-bottom:1.25rem;text-align:left;line-height:1.75;color:var(--text);}.card{background:var(--surface);padding:2rem;border-radius:18px;border:1px solid var(--border);box-shadow:var(--shadow);margin:2rem 0;}.faq{margin-top:3.5rem;padding-top:2.5rem;border-top:1px solid var(--border);}.faq-item{background:color-mix(in srgb, var(--accent) 8%, var(--surface));padding:1.5rem;border-radius:16px;margin-bottom:1.25rem;border:1px solid var(--border);}.faq-item h3{color:var(--accent);font-size:1.1rem;margin-bottom:0.75rem;margin-top:0;}.faq-item p{color:var(--muted);}.crosslinks{margin-top:3.5rem;padding-top:2.5rem;border-top:1px solid var(--border);}.crosslinks h2{margin-bottom:1.5rem;font-size:1.5rem;color:var(--text);}.crosslinks ul{list-style:none;display:flex;flex-direction:column;gap:1rem;padding:0;margin:0;}.crosslinks li{background:color-mix(in srgb, var(--accent) 6%, var(--surface));padding:1.25rem;border-radius:14px;border:1px solid var(--border);transition:background-color 0.14s ease, transform 0.14s ease;}.crosslinks li:hover{transform:translateX(4px);}.crosslinks a{color:var(--accent);text-decoration:none;font-weight:500;}.crosslinks a:hover{text-decoration:underline;}footer{margin-top:4rem;padding:2.5rem 0;border-top:1px solid var(--border);text-align:center;background:var(--surface);border-radius:16px 16px 0 0;}footer nav{margin-bottom:1.5rem;}footer p{color:var(--muted);font-size:0.9rem;margin-bottom:0.5rem;}footer a{color:var(--accent);text-decoration:none;transition:color 0.12s ease;}footer a:hover{color:var(--accent2);text-decoration:underline;}@media (max-width:768px){body{padding:1rem 1.5rem;}article{padding:1.75rem;}h1{font-size:1.85rem;}h2{font-size:1.45rem;}nav{gap:1.25rem;font-size:0.95rem;}.card{padding:1.5rem;}}