:root{color-scheme:dark;--bg:#070c16;--panel:#0c1321;--text:#f4f7fc;--muted:#9ca9bd;--line:#ffffff1a;--cyan:#74e1ff}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:7px}::selection{background:#74e1ff;color:#070c16}.skip{position:absolute;left:20px;top:-80px;z-index:100;background:var(--cyan);color:#070c16;padding:12px}.skip:focus{top:12px}.header{height:96px;display:flex;align-items:center;justify-content:space-between;padding:0 6%;border-bottom:1px solid 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/* Use the supplied group logo unchanged; frame its transparent margins. */
.mark{position:relative;display:block;flex:none;width:38px;height:49px;padding:0;overflow:hidden}
.mark img{position:absolute;width:84px;height:84px;max-width:none;left:50%;top:50%;transform:translate(-50%,-50%)}
.about-symbol{position:relative;width:100%;height:300px;margin-top:20px;overflow:hidden}
.about-symbol img{position:absolute;width:480px;height:480px;max-width:none;left:50%;top:50%;transform:translate(-50%,-50%)}
@media(max-width:800px){.about-symbol img{width:390px;height:390px}}
@media(max-width:560px){.mark{width:33px;height:43px}.mark img{width:74px;height:74px}.about-symbol{display:none}}

footer>div{flex-wrap:wrap;gap:16px 24px;line-height:1.8}footer>div a:hover{color:var(--cyan)}