:root{--ink:#102a43;--blue:#163a5f;--orange:#e56a2f;--teal:#2f7f7a;--paper:#fffaf0;--soft:#f0ece3;--line:#d8d1c4;--white:#fff;--muted:#5b6875;--max:1180px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","PingFang SC",sans-serif;line-height:1.75}a{color:inherit}img{max-width:100%;display:block}.sprite-top{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:18px max(24px,calc((100% - var(--max))/2));border-bottom:1px solid var(--line);background:rgba(255,250,240,.96);position:sticky;top:0;z-index:20}.sprite-brand{text-decoration:none;display:grid;grid-template-columns:14px auto;column-gap:10px;align-items:center}.sprite-brand i{width:12px;height:12px;background:var(--orange);border-radius:50%;box-shadow:16px 0 0 var(--teal)}.sprite-brand b{font-size:19px}.sprite-brand small{grid-column:2;color:var(--muted)}.sprite-top .sprite-landmark-nav{display:flex;gap:20px}.sprite-top .sprite-landmark-nav a{text-decoration:none;font-weight:650;font-size:14px}.sprite-menu{display:none;border:1px solid var(--ink);background:var(--paper);color:var(--ink);font:inherit;font-weight:750;padding:9px 13px;border-radius:8px;cursor:pointer}.sprite-wrap{width:min(var(--max),calc(100% - 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