:root{--paper: #f7f8fb;--paper-2: #eff1f7;--surface: #ffffff;--ink: #171a2e;--ink-2: #3a3f5c;--muted: #5f6480;--faint: #9096b0;--line: #e3e6f0;--line-2: #edeff6;--i50: #eef0fe;--i100: #dfe3fd;--i200: #c3c9fa;--i300: #a2aaf1;--i500: #5a61e6;--i600: #464dd1;--i700: #363ca4;--i900: #1e2263;--ok: #0e8a63;--ok-bg: #e6f5ef;--warn: #b45309;--warn-bg: #fdf3e3;--danger: #c83a57;--danger-bg: #fceaee;--cut: 11px;--r: 10px;--sh-1: 0 1px 2px rgba(23, 26, 46, .06);--sh-2: 0 6px 20px -6px rgba(23, 26, 46, .14);--max: 1080px;--sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--mono: ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;color-scheme:light dark}@media(prefers-color-scheme:dark){:root{--paper: #12141f;--paper-2: #1a1d2b;--surface: #1b1e2e;--ink: #eef0f8;--ink-2: #c7cbe0;--muted: #9aa0bc;--faint: #6c7292;--line: #2a2e42;--line-2: #232739;--i50: #1d2140;--i100: #252a52;--i200: #333a73;--i300: #5a62a8;--i500: #8289f2;--i600: #9aa0f5;--i700: #b3b8f8;--i900: #dfe1fd;--ok: #3dd3a0;--ok-bg: #12301f;--warn: #e9a94a;--warn-bg: #33260f;--danger: #f0728c;--danger-bg: #351a22;--sh-1: 0 1px 2px rgba(0, 0, 0, .4);--sh-2: 0 6px 20px -6px rgba(0, 0, 0, .5)}}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:var(--sans);background:var(--paper);color:var(--ink);line-height:1.75;-webkit-font-smoothing:antialiased}img{max-width:100%;height:auto;display:block}a{color:inherit}::selection{background:var(--i500);color:#fff}:focus-visible{outline:2px solid var(--i500);outline-offset:3px}.mono{font-family:var(--mono)}.shell{max-width:var(--max);margin:0 auto;padding:0 26px}main{min-height:62vh}.mark{width:13px;height:13px;flex:none;background:var(--i500);display:inline-block;clip-path:polygon(0 0,100% 0,100% 60%,60% 100%,0 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