:root{--brand-deep:#143b43;--brand:#206f70;--teal:#257777;--gold:#a9533d;--ink:#223d43;--muted:#627276;--soft:#f4f5f0;--line:#d9e1de;--white:#fff;--radius:2px;--shadow:none;font-family:Microsoft YaHei,PingFang SC,sans-serif;color-scheme:light}*{box-sizing:border-box}body{margin:0;background:#fcfcf8;color:var(--ink);line-height:1.8}a{color:inherit;text-decoration:none}img{display:block;max-width:100%;height:auto}a:focus-visible,summary:focus-visible{outline:3px solid #cf694c;outline-offset:5px}a:hover{color:var(--gold)}h1,h2,h3{line-height:1.45;font-weight:600}p{margin:0 0 1.2em}.container{width:min(1240px,calc(100% - 64px));margin-inline:auto}.site-header{position:relative;z-index:5;background:#fcfcf8;border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:100px}.brand{display:flex;align-items:center;gap:11px;flex-shrink:0}.brand strong{display:block;font-size:20px;letter-spacing:1px}.brand 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