:root{--bg-primary:#fff;--bg-secondary:#fafafa;--bg-card:#f8f9fa;--text-color:#000;--text-secondary:#666;--text-muted:#999;--border-color:#e9ecef;--link-color:#e85d04;--link-hover-color:#dc2f02;--header-bg:#000;--header-text:#fff;--header-accent:#4a9eff;--toggle-bg:#f8f9fa;--toggle-border:#dee2e6;--toggle-hover-bg:#e9ecef;--card-shadow:rgba(0,0,0,.08);--card-shadow-hover:rgba(0,0,0,.12);--award-bg:rgba(232,93,4,.1)}[data-theme=dark]{--bg-primary:#1a1a1a;--bg-secondary:#242424;--bg-card:#2d2d2d;--text-color:#e9ecef;--text-secondary:#adb5bd;--text-muted:#6c757d;--border-color:#3d3d3d;--link-color:#ff8c42;--link-hover-color:#ffa566;--header-bg:#0d0d0d;--header-text:#fff;--header-accent:#4a9eff;--toggle-bg:#3d3d3d;--toggle-border:#4d4d4d;--toggle-hover-bg:#4d4d4d;--card-shadow:rgba(0,0,0,.3);--card-shadow-hover:rgba(0,0,0,.4);--award-bg:rgba(255,140,66,.15)}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-color);line-height:1.6;transition:background-color .3s ease,color .3s ease}a{color:inherit;text-decoration:none}h1,h2,h3,h4,h5,h6{font-weight:700;color:var(--text-color)}img{max-width:100%;height:auto}