:root{color-scheme:light dark;--bg:#f5f7fb;--panel:#ffffff;--text:#222831;--muted:#6b7280;--line:#e5e7eb;--accent:#2563eb;--accent-soft:#eaf1ff;--code:#eef2f7;--shadow:0 14px 34px rgba(15, 23, 42, 0.08)}@media(prefers-color-scheme:dark){:root{--bg:#0f1218;--panel:#171b23;--text:#eef2f7;--muted:#a5adba;--line:#2a303b;--accent:#7aa2ff;--accent-soft:#18233d;--code:#202633;--shadow:0 14px 34px rgba(0, 0, 0, 0.28)}}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:segoe ui,system-ui,-apple-system,sans-serif;line-height:1.65}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}img{max-width:100%;height:auto}figure{margin:1.6rem 0}figure img{display:block;border:1px solid var(--line);border-radius:8px;background:var(--bg)}.content img{cursor:zoom-in}.image-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px}.image-gallery img{width:100%}.about-credential{max-width:720px}.about-credential 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