:root{--bg-primary: #ebeced;--text-primary: #000;--text-secondary: #555;--border-color: #ddd;--link-color: #0066cc;--link-hover: #004499;--code-bg: #f5f5f5;--code-text: #333}[data-theme="dark"]{--bg-primary: #1a1a1a;--text-primary: #e8e8e8;--text-secondary: #b0b0b0;--border-color: #444;--link-color: #66b3ff;--link-hover: #99ccff;--code-bg: #2d2d2d;--code-text: #e8e8e8}.latex-style{font-family:'Computer Modern', 'CMU Serif', 'Cambria', 'Georgia', 'Times New Roman', serif;line-height:1.6;letter-spacing:0.02em}.latex-style code{font-family:'Computer Modern Typewriter', 'Courier New', monospace}body{background-color:var(--bg-primary);color:var(--text-primary);transition:background-color 0.3s ease, color 0.3s ease}a{color:var(--link-color)}a:hover{color:var(--link-hover)}code{background-color:var(--code-bg);color:var(--code-text);padding:2px 6px;border-radius:3px;font-family:'Courier New', monospace}pre{background-color:var(--code-bg);color:var(--code-text);padding:12px;border-radius:4px;overflow-x:auto}pre code{background-color:transparent;color:inherit;padding:0}blockquote{border-left:4px solid var(--border-color);padding-left:12px;color:var(--text-secondary)}hr{border-color:var(--border-color)}.dark-mode-toggle{cursor:pointer;user-select:none;font-size:1em;padding:8px 12px;border:1px solid var(--text-primary);background:none;color:var(--text-primary);border-radius:3px;transition:all 0.3s ease}.dark-mode-toggle:hover{opacity:0.7;background-color:var(--code-bg)}.header-container{display:flex;justify-content:space-between;align-items:flex-start;width:100%;gap:20px}.header-content{flex:1}