:root{--navy:#06112d;--panel:rgba(8,29,57,.82);--line:rgba(156,207,222,.16);--text:#f7fbff;--muted:#8fa8bf;--teal:#21d4b2;--cyan:#64c9ff;--gold:#f4c557;--red:#ff756d}*{box-sizing:border-box}body{margin:0;font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif}button,input,select,textarea{font:inherit}.screen-page{min-height:100vh;color:var(--text);background:var(--navy)}.screen-shell{min-height:100vh;padding:24px 32px 32px;background:linear-gradient(rgba(255,255,255,.018) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.018) 1px,transparent 1px),radial-gradient(circle at 88% 8%,rgba(0,180,154,.26),transparent 29%),radial-gradient(circle at 4% 48%,rgba(22,74,187,.31),transparent 37%),linear-gradient(135deg,#06102c,#071a32 48%,#063b43);background-size:34px 34px,34px 34px,auto,auto,auto}.screen-header{position:relative;display:block;margin-bottom:16px;text-align:center}.screen-header>div:first-child{padding:0 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