:root{--bg: #0c0f14;--surface: #141a24;--text: #e8edf5;--muted: #9aa8bc;--accent: #3d8bfd;--accent-dim: #2563c9;--border: rgba(255, 255, 255, .08);--radius: 12px;--font: "DM Sans", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--max: 1080px}*,*:before,*:after{box-sizing:border-box}html{scroll-behavior:smooth}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important}}body{margin:0;font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}a{color:var(--accent);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:#6eb0ff}.skip-link{position:absolute;left:-9999px;top:0;z-index:100;padding:.75rem 1rem;background:var(--accent);color:#fff;font-weight:600}.skip-link:focus{left:1rem;top:1rem}.wrap{width:min(100% - 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