:root{--bg-primary: #ffffff;--bg-secondary: #fbfbfb;--bg-card: #ffffff;--bg-subtle: #f5f5f7;--border-color: #eaeaea;--border-hover: #0532a8;--text-primary: #111111;--text-secondary: #404040;--text-muted: #888888;--accent-blue: #0532a8;--accent-blue-hover: #032174;--accent-blue-bg: rgba(5, 50, 168, .05);--tile-blue: #0532a8;--tile-contrast: #0f0f0f;--tile-border: transparent;--font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", "Segoe UI", Arial, "LXGW WenKai Lite", "LXGW WenKai Screen", "LXGW WenKai", "霞鹜文楷", "霞鹜文楷 屏幕阅读版", "霞鹜文楷 Light", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;--font-mono: "JetBrains Mono", "JetBrainsMono Nerd Font", ui-monospace, "SF Mono", Menlo, Monaco, Consolas, monospace;--max-width: 1160px}html.dark{--bg-primary: #24252b;--bg-secondary: #2c2d34;--bg-card: #2c2d34;--bg-subtle: #34353f;--border-color: #3b3d48;--border-hover: #6495fd;--text-primary: #f4f4f7;--text-secondary: #b5b6c2;--text-muted: #7f8191;--accent-blue: #6495fd;--accent-blue-hover: #8eb3ff;--accent-blue-bg: rgba(100, 149, 253, .12);--tile-blue: #6495fd;--tile-contrast: #141418;--tile-border: #3b3d48}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-primary);color:var(--text-primary);font-family:var(--font-sans);line-height:1.75;font-weight:300;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;transition:background-color .2s ease,color .2s ease}code,kbd,samp,pre{font-family:var(--font-mono)}.top-accent-bar{height:2px;background-color:var(--accent-blue);width:100%}a{color:var(--accent-blue);text-decoration:none;transition:color .15s ease}a:hover{color:var(--accent-blue-hover)}.site-wrapper{min-height:calc(100vh - 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