:root{--bg:#080d1b;--panel:#111b2d;--panel2:#17243a;--line:#2b3d57;--text:#f1f6ff;--muted:#9db0c9;--aqua:#70ead6;--gold:#ffd48a;--rose:#ff8d95;--blue:#8bb3ff;--max:1280px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(ellipse at 85% -15%,#183653,transparent 44%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Microsoft YaHei","PingFang SC","Noto Sans CJK SC",Arial,sans-serif;font-size:16px;line-height:1.65}button,input,select,textarea{font:inherit}button{cursor:pointer;transition:.15s}button:hover{filter:brightness(1.08)}button:disabled{opacity:.5;cursor:not-allowed}a{color:var(--aqua);text-decoration:none}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.1rem,4vw,4.5rem);line-height:1.12;letter-spacing:-.045em}h2{font-size:clamp(1.5rem,2.1vw,2.35rem);line-height:1.25}h3{font-size:1.15rem}small,.small{font-size:.83rem;color:var(--muted)}.wrap{width:min(var(--max),calc(100% - 48px));margin:auto}.top{padding:22px 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