:root{color-scheme:dark;--bg:#111410;--panel:#191d17;--line:#343a2d;--text:#edf0e5;--muted:#a0a895;--accent:#d6ec9c}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:14px/1.7 -apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif}button,input,select{font:inherit}a{color:inherit;text-decoration:none}button,a,input,select,summary{outline-offset:5px}button{cursor:pointer}button:disabled{opacity:.4;cursor:default}header,main,footer{max-width:1200px;margin:auto}header{height:100px;display:flex;align-items:center;gap:32px;border-bottom:1px solid var(--line)}header img,footer img{filter:invert(1);display:block}.header-label{letter-spacing:1.8px;font-size:10px;color:var(--muted)}.back{margin-left:auto;font-size:12px}.intro{padding:76px 0 50px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--muted);margin:0 0 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