:root{--bg:#EEF5FB;--deep:#E3EEF7;--card:#fff;--sub:#D7E8F4;--ink:#10263A;--text:#243848;--muted:#5A7388;--aux:#7E93A6;--blue:#3B9FE0;--bright:#62B7EE;--steel:#1E6FB8;--ice:#A9D6F2;--mint:#2FA8A0;--line:rgba(30,111,184,.16);--strong:rgba(59,159,224,.38);--shadow:0 16px 40px rgba(16,38,58,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.75 system-ui,-apple-system,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}.site-header{position:fixed;inset:0 0 auto;z-index:50}.frame-line{height:18px;background:var(--steel);color:#fff;font-size:11px;line-height:18px}.frame-inner,.bar-inner,.track-inner,.footer-inner,.content{max-width:1220px;margin:auto;padding:0 20px}.frame-inner{display:flex;justify-content:space-between}.text-button{border:0;background:transparent;color:#fff;padding:0 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