:root{--bg:#ffffff;--surface:#ffffff;--surface2:#f6f7fb;--text:#111827;--muted:#4b5563;--border:#e5e7eb;--accent:#2563eb;--link:#2563eb;--radius:16px;--shadow:0 1px 2px rgba(0,0,0,.06), 0 8px 24px rgba(0,0,0,.06);} html{color-scheme:light} *{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;} a{color:var(--link);text-decoration:none} a:hover{text-decoration:underline} img{max-width:100%;height:auto;display:block} .wrap{max-width:980px;margin:0 auto;padding:18px 16px} header{border-bottom:1px solid var(--border);background:rgba(255,255,255,.90);backdrop-filter:saturate(180%) blur(10px);position:sticky;top:0;z-index:20;} nav{display:flex;gap:14px;flex-wrap:wrap;align-items:center;justify-content:space-between} .brand{font-weight:900;letter-spacing:.2px} .brand span{color:var(--accent)} .navlinks{display:flex;gap:12px;flex-wrap:wrap} .navlinks a{color:var(--muted)} .navlinks a:hover{color:var(--text);text-decoration:none} .notice{margin-top:10px;border:1px solid var(--border);background:var(--surface2);padding:10px 12px;border-radius:999px;color:var(--muted);} .notice a{color:var(--text);font-weight:700} .hero{padding:20px 0 8px} h1{font-size:1.85rem;margin:0 0 8px;letter-spacing:-.02em} h2{font-size:1.2rem;margin:22px 0 10px;letter-spacing:-.01em} h3{font-size:1.05rem;margin:18px 0 8px} p{margin:10px 0;color:var(--muted)} .badge{display:inline-block;border:1px solid var(--border);border-radius:999px;padding:4px 10px;font-size:.85rem;color:var(--muted);margin-bottom:10px;background:rgba(37,99,235,.06);} .kicker{color:var(--muted);font-size:.96rem} .cta{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px} .button{display:inline-block;background:var(--accent);color:#ffffff;font-weight:800;padding:10px 14px;border-radius:12px;box-shadow:var(--shadow);} .button.secondary{background:transparent;color:var(--text);border:1px solid var(--border);box-shadow:none;} .cardgrid{display:grid;grid-template-columns:repeat(12,1fr);gap:14px;margin:14px 0 8px} .card{grid-column:span 12;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow);} @media(min-width:760px){.card{grid-column:span 6}} .article{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);} figure{margin:14px 0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface2);box-shadow:var(--shadow);} figcaption{padding:10px 12px;color:var(--muted);font-size:.92rem} .breadcrumb{font-size:.92rem;color:var(--muted);margin:2px 0 10px} .breadcrumb a{color:var(--muted)} .ul{margin:8px 0 0;padding-left:18px;color:var(--muted)} .qtoc a{display:block;padding:10px 12px;border:1px solid var(--border);border-radius:14px;margin:8px 0;background:var(--surface2);} .qtoc a:hover{background:rgba(37,99,235,.06);text-decoration:none} .callout{border:1px solid var(--border);background:rgba(37,99,235,0.06);padding:10px 12px;border-radius:14px;color:var(--muted);} .callout a{color:var(--text);font-weight:800} .hr{height:1px;background:var(--border);margin:18px 0} .footer{border-top:1px solid var(--border);margin-top:28px} small{color:var(--muted)} .theme-toggle{display:inline-flex;align-items:center;gap:8px;border:1px solid var(--border);background:var(--surface2);color:var(--text);padding:8px 10px;border-radius:999px;font-weight:700;cursor:pointer;user-select:none;} .theme-toggle:focus{outline:2px solid rgba(37,99,235,.35);outline-offset:2px} .theme-toggle svg{width:16px;height:16px} :root[data-theme="dark"]{--bg:#0b0c10;--surface:#11131a;--surface2:#0f1118;--text:#e8eaf0;--muted:#b5b9c6;--border:#23283b;--accent:#60a5fa;--link:#7dd3fc;--shadow:none;} :root[data-theme="dark"] html{color-scheme:dark} @media (prefers-color-scheme:dark){:root:not([data-theme]){--bg:#0b0c10;--surface:#11131a;--surface2:#0f1118;--text:#e8eaf0;--muted:#b5b9c6;--border:#23283b;--accent:#60a5fa;--link:#7dd3fc;--shadow:none;} html{color-scheme:dark} } @media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important;animation:none!important} } figure img{width:100%;height:auto} .hero{padding:10px 0 4px} .hero figure{margin:8px 0} .hero img{max-height:220px;object-fit:cover;border-radius:12px} @media(max-width:760px){.hero img{max-height:160px} }