:root{--ink:#111;--line:#333;--soft:#f2f2f2;--accent:#0CB8B8}
html{background:#f6f7f8}
body{max-width:860px;margin:0 auto;padding:56px 40px 96px;background:#fff;color:var(--ink);
 font-family:"SimSun","Noto Serif CJK SC","Songti SC",serif;font-size:16px;line-height:1.9;
 box-shadow:0 0 24px rgba(0,0,0,.06)}
h1{font-size:30px;text-align:center;margin:0 0 8px;font-weight:700;letter-spacing:.5px}
h2{font-size:22px;margin:44px 0 12px;padding-bottom:8px;border-bottom:2px solid var(--accent)}
h3{font-size:18px;margin:30px 0 10px;color:#0a4f7a}
h4{font-size:16px;margin:22px 0 8px}
p{margin:.7em 0;text-align:justify}
table{border-collapse:collapse;width:100%;margin:16px 0;font-size:14px}
th,td{border:1px solid var(--line);padding:7px 9px;vertical-align:top;line-height:1.7}
th{background:var(--soft);font-weight:700;text-align:left}
blockquote{margin:16px 0;padding:12px 18px;border-left:4px solid var(--accent);background:#f7fcfc;color:#222}
code{background:#f4f4f4;padding:1px 5px;border-radius:3px;font-size:13px}
hr{border:0;border-top:1px solid #ddd;margin:34px 0}
@media(max-width:640px){body{padding:28px 16px 60px;font-size:15px}h1{font-size:23px}}