:root{--bg:#080b19;--card:#111833;--ink:#f7fbff;--muted:#a7b5d9;--line:rgba(255,255,255,.13);--hot:#7cf7d4;--pink:#ff78c4;--gold:#ffd36a;--blue:#7ab8ff}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:radial-gradient(circle at 15% 5%,rgba(124,247,212,.18),transparent 28%),radial-gradient(circle at 85% 15%,rgba(255,120,196,.15),transparent 24%),var(--bg);color:var(--ink);line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}.site-header{position:sticky;top:0;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px clamp(18px,4vw,62px);backdrop-filter:blur(18px);background:rgba(8,11,25,.78);border-bottom:1px solid 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