:root{--bg:#1C1C1E;--deep:#141416;--card:#2A2A2E;--card2:#323238;--title:#F2F2F4;--text:#D8D8DC;--muted:#A0A0A8;--soft:#7A7A82;--silver:#C8C8D0;--blue:#6A8AAA;--line:rgba(200,200,208,.16);--strong:rgba(106,138,170,.48);--shadow:0 12px 28px rgba(0,0,0,.28)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.7 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}.locked{overflow:hidden}a{color:inherit;text-decoration:none}button{font:inherit}.wrap{width:min(980px,calc(100% - 32px));margin:auto}.site-head{position:fixed;z-index:50;inset:0 0 auto;background:var(--bg)}.topline{height:20px;background:var(--deep);color:var(--silver);font-size:12px}.top-inner,.brand-inner,.nav-inner{display:flex;align-items:center;justify-content:space-between;height:100%}.text-btn,.head-actions button{border:0;background:transparent;color:var(--silver);cursor:pointer}.brandbar{height:54px;border-bottom:1px solid 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