:root{--font-body:16px;--font-small:14px;--font-meta:12px;--line-body:1.6;--line-compact:1.35;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--page-readable:720px;--page-tool:1180px;--text:#111;--muted:#555;--border:#aaa;--border-light:#ddd;--background:#fff;--background-alt:#f4f4f4;--link:#00c;--visited:#551a8b;--danger:#900;--warning:#704b00;--success:#075f36;--primary:#333;--primary-hover:#111;--on-primary:#fff;--on-danger:#fff;--control-background:#fff;--control-hover-background:#f3f4f6;--control-active-background:#eaeef2;--control-border:#d0d7de;--control-hover-border:#8c959f;--dialog-text:#24292e;--dialog-muted:#586069;--dialog-border:#d0d7de;--dialog-background:#fff;--dialog-button-background:#f6f8fa;--dialog-danger:#cf222e;--dialog-on-danger:#fff;--dialog-overlay:#1b1f2375;--dialog-shadow:#1b1f232e;--mono:SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;color:var(--text);background:var(--background);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Helvetica,Arial,Microsoft YaHei,sans-serif;font-size:var(--font-body);font-synthesis:none;line-height:var(--line-body)}:root[data-theme=dark]{--text:#f0f0f0;--muted:#b3b3b3;--border:#666;--border-light:#3d3d3d;--background:#171717;--background-alt:#232323;--link:#8ab4f8;--visited:#d0a7f5;--danger:#ff7b72;--warning:#e3b341;--success:#56d364;--primary:#f0f0f0;--primary-hover:#fff;--on-primary:#171717;--on-danger:#171717;--control-background:#21262d;--control-hover-background:#30363d;--control-active-background:#282e33;--control-border:#30363d;--control-hover-border:#8b949e;--dialog-text:#f0f6fc;--dialog-muted:#8b949e;--dialog-border:#30363d;--dialog-background:#161b22;--dialog-button-background:#21262d;--dialog-danger:#da3633;--dialog-on-danger:#fff;--dialog-overlay:#010409a8;--dialog-shadow:#01040980}*{box-sizing:border-box}html,body,#root{min-height:100%}body{background:var(--background);margin:0}button,input,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.55}h1,h2,h3,p{margin-top:0}h1{margin-bottom:var(--space-3);font-size:32px;font-weight:600;line-height:1.2}h2{margin:0 0 var(--space-3);font-size:20px;font-weight:600;line-height:1.3}h3{margin:0 0 var(--space-2);font-size:17px;font-weight:600;line-height:1.35}p{margin-bottom:var(--space-3)}small,.meta{color:var(--muted);font-size:var(--font-meta)}code,pre,time,.machine{font-family:var(--mono)}a{color:var(--link);text-underline-offset:2px;text-decoration:underline}a:visited{color:var(--visited)}a:hover{text-decoration-thickness:2px}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{outline:2px solid var(--link);outline-offset:2px}.brand{color:var(--text);font-size:18px;font-weight:600;text-decoration:none}.brand:visited{color:var(--text)}.qq-login-link{line-height:0;display:inline-block}.qq-login-link img{width:120px;height:24px;display:block}.theme-toggle{border:1px solid var(--control-border);width:32px;min-width:32px;height:32px;color:var(--text);background:var(--control-background);border-radius:6px;flex:0 0 32px;place-items:center;padding:0;line-height:1;display:inline-grid}.theme-toggle:hover{border-color:var(--control-hover-border);background:var(--control-hover-background)}.theme-toggle:active{background:var(--control-active-background)}.theme-toggle-icon{width:16px;height:16px;animation:.12s cubic-bezier(.33,1,.68,1) theme-icon-in;display:block}.theme-toggle-icon svg{stroke-width:2px;width:16px;height:16px;display:block}@keyframes theme-icon-in{0%{opacity:0;transform:scale(.88)}to{opacity:1;transform:scale(1)}}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){.theme-toggle-icon{animation:none}}