:root{color-scheme:light;--blue:#21518f;--red:#b33a45;--ink:#1d2737;--muted:#637187;--line:#c9d2df;--paper:#f2f5f9;--white:#fffdfd}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.8 "Microsoft YaHei","Noto Sans CJK SC",sans-serif}header,main,footer{width:min(1080px,calc(100% - 36px));margin:auto}header{display:flex;justify-content:space-between;padding:20px 0;border-bottom:1px solid var(--line);font-size:12px}a{color:var(--blue);overflow-wrap:anywhere}main{padding:30px 0 60px}h1{font-family:"Noto Serif CJK SC","Songti SC",serif;font-size:clamp(30px,5vw,48px);line-height:1.3}h2{margin-top:34px;padding-bottom:8px;border-bottom:2px solid var(--red);font-size:19px}section{margin:28px 0;padding:20px;background:var(--white);border:1px solid var(--line)}dl{display:grid;grid-template-columns:130px 1fr;gap:7px 14px;padding:18px;background:#e5ebf3}dt{font-weight:700;color:var(--blue)}dd{margin:0;overflow-wrap:anywhere}.eyebrow{color:var(--red);font:11px Consolas,monospace;letter-spacing:.08em}.muted,footer{color:var(--muted);font-size:12px}.note{margin-top:30px;padding:14px;border-left:3px solid var(--red);background:#f9e9eb;font-size:12px}.lead{font-size:17px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;background:var(--white);font-size:12px}th,td{padding:10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{color:var(--blue);white-space:nowrap}.thumb{display:block;max-width:min(420px,100%);max-height:300px;margin:12px 0;object-fit:contain;border:1px solid var(--line)}footer{padding:20px 0 36px;border-top:1px solid var(--line)}@media(max-width:600px){header{gap:12px;flex-direction:column}dl{grid-template-columns:1fr;gap:0}dd{margin-bottom:8px}}

.language-switch{display:flex;gap:3px;padding:3px;border:1px solid var(--line);background:var(--white)}.language-switch button{padding:5px 8px;border:0;color:var(--muted);background:transparent;font:inherit;font-size:11px;cursor:pointer}.language-switch button[aria-pressed="true"]{color:#fff;background:var(--blue)}.language-switch button:focus-visible{outline:2px solid var(--red);outline-offset:2px}