:root{--ink:#16140c;--paper:#f7f1d8;--panel:#fff9e8;--soft:#f0e8c0;--deep:#e8dfa8;--yellow:#e8c430;--muted:#5a5428;--line:rgba(22,20,12,.13);--accent-line:rgba(232,196,48,.58);--shadow:0 14px 34px rgba(22,20,12,.11);--radius:16px;--max:960px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.72;overflow-x:hidden}body.locked{overflow:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{color:inherit}img{display:block;max-width:100%;height:auto;object-fit:contain;object-position:center}.shell{width:min(var(--max),calc(100% - 32px));margin:0 auto}.skip-link{position:fixed;left:16px;top:-70px;z-index:999;background:var(--yellow);color:var(--ink);padding:10px 14px;border-radius:10px}.skip-link:focus{top:10px}.site-header{position:fixed;inset:0 0 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