body{margin:0;background:#fafaf8;color:#1f2328;font:17px/1.8 -apple-system,"PingFang SC","Hiragino Sans GB","Noto Sans CJK SC","Microsoft YaHei",sans-serif}
main{max-width:780px;margin:0 auto;padding:32px 20px 64px}
a{color:#0b5cad}h1{font-size:1.7em;line-height:1.35}h2{margin-top:2em;border-bottom:1px solid #e4e4e0;padding-bottom:.2em}
table{border-collapse:collapse;width:100%;font-size:.92em;display:block;overflow-x:auto}th,td{border:1px solid #d8d8d2;padding:6px 10px;text-align:left;vertical-align:top}th{background:#f0f0ec}
code{background:#eeeeea;padding:1px 4px;border-radius:3px;font-size:.9em}pre{background:#f0f0ec;padding:12px;overflow-x:auto}pre code{background:none}
blockquote{margin:0;padding:0 1em;color:#555;border-left:4px solid #ddd}.back{font-size:.9em}.src{margin-top:48px;font-size:.8em;color:#777;border-top:1px solid #e4e4e0;padding-top:8px}
ul.dir{list-style:none;padding:0}ul.dir li{padding:10px 0;border-bottom:1px solid #ececE8}ul.dir .d{display:block;color:#555;font-size:.92em}.note{color:#777;font-size:.85em}