:root{--color-bg: #ffffff;--color-bg-secondary: #f1f5f9;--color-surface: #e8edf4;--color-text: #1e293b;--color-text-secondary: #64748b;--color-border: #d1d9e6;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-code-bg: #e8edf4;--color-blockquote: #64748b;--spacing-sm: .5rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--radius-sm: 4px;--radius-md: 8px;--shadow-sm: 0 1px 3px rgba(0,0,0,.08);--shadow-md: 0 4px 8px rgba(0,0,0,.12)}[data-theme=dark]{--color-bg: #0f172a;--color-bg-secondary: #1e293b;--color-surface: #1e293b;--color-text: #f1f5f9;--color-text-secondary: #94a3b8;--color-border: #334155;--color-primary: #3b82f6;--color-primary-hover: #60a5fa;--color-code-bg: #1e293b;--color-blockquote: #94a3b8}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1.6;color:var(--color-text);background-color:var(--color-bg);transition:background-color .3s,color .3s}a{color:var(--color-primary);text-decoration:none}a:hover{color:var(--color-primary-hover);text-decoration:underline}img{max-width:100%;height:auto}code{background-color:var(--color-code-bg);padding:.2em .4em;border-radius:var(--radius-sm);font-family:SF Mono,Monaco,Cascadia Code,monospace;font-size:.9em}pre{background-color:var(--color-code-bg);padding:var(--spacing-md);border-radius:var(--radius-md);overflow-x:auto}pre code{background:none;padding:0}blockquote{border-left:4px solid var(--color-primary);padding-left:var(--spacing-md);color:var(--color-blockquote);margin:var(--spacing-lg) 0}ul,ol{padding-left:1.5rem;margin:var(--spacing-md) 0}li{margin-bottom:var(--spacing-sm)}li>ul,li>ol{margin:var(--spacing-sm) 0}h1,h2,h3,h4,h5,h6{line-height:1.3;margin-top:var(--spacing-xl);margin-bottom:var(--spacing-md);color:var(--color-text)}h1{font-size:2rem}h2{font-size:1.5rem}h3{font-size:1.25rem}hr{border:none;border-top:1px solid var(--color-border);margin:var(--spacing-xl) 0}table{border-collapse:collapse;width:100%;margin:var(--spacing-md) 0}th,td{border:1px solid var(--color-border);padding:var(--spacing-sm) var(--spacing-md);text-align:left}th{background-color:var(--color-bg-secondary);font-weight:600}tr:nth-child(2n){background-color:var(--color-bg-secondary)}.container{max-width:1200px;margin:0 auto;padding:0 var(--spacing-md)}.nav-header{background-color:var(--color-bg);border-bottom:2px solid var(--color-border);padding:var(--spacing-sm) 0;box-shadow:var(--shadow-sm);position:sticky;top:0;z-index:100;backdrop-filter:blur(8px)}.nav{display:flex;align-items:center;gap:var(--spacing-lg);min-height:48px}.nav-brand{display:flex;align-items:center;gap:var(--spacing-sm);font-weight:600;font-size:1.1rem;color:var(--color-text);line-height:1}.nav-brand img{width:28px;height:28px;border-radius:4px;vertical-align:middle}.nav-link{color:var(--color-text-secondary);padding:6px 14px;border-radius:var(--radius-md);line-height:1;transition:background-color .2s,color .2s;white-space:nowrap}.nav-link:hover{background-color:var(--color-border);color:var(--color-text);text-decoration:none}.nav-menu{display:flex;align-items:center;gap:var(--spacing-sm)}.nav-actions{display:flex;align-items:center;gap:var(--spacing-sm);margin-left:auto}.hamburger{display:none;background:none;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:.4rem .6rem;cursor:pointer;font-size:1.2rem;color:var(--color-text);line-height:1}main{min-height:calc(100vh - 200px);padding:var(--spacing-xl) 0}footer{background-color:var(--color-bg-secondary);border-top:1px solid var(--color-border);padding:var(--spacing-xl) 0;text-align:center;color:var(--color-text-secondary)}.post-list{list-style:none}.post-item{padding:var(--spacing-lg) 0;border-bottom:1px solid var(--color-border)}.post-item:last-child{border-bottom:none}.post-title{font-size:1.25rem;margin-bottom:var(--spacing-sm)}.post-meta{font-size:.875rem;color:var(--color-text-secondary);margin-bottom:var(--spacing-sm)}.post-excerpt{color:var(--color-text-secondary)}.btn{display:inline-block;padding:var(--spacing-sm) var(--spacing-md);background-color:var(--color-primary);color:#fff;border-radius:var(--radius-md);border:none;cursor:pointer;font-size:1rem;transition:background-color .2s}.btn:hover{background-color:var(--color-primary-hover);text-decoration:none;color:#fff}@media(max-width:768px){.container{padding:0 var(--spacing-sm)}.nav{flex-wrap:wrap;gap:0}.hamburger{display:inline-flex;align-items:center;justify-content:center}.nav-menu{display:none;width:100%;flex-direction:column;padding:var(--spacing-sm) 0;gap:0}.nav-menu.nav-menu-open{display:flex}.nav-menu .nav-link{width:100%;padding:var(--spacing-md);border-radius:0;border-bottom:1px solid var(--color-border)}.nav-menu .nav-link:last-child{border-bottom:none}h1{font-size:1.5rem}h2{font-size:1.25rem}}.text-center{text-align:center}.text-secondary{color:var(--color-text-secondary)}.mt-lg{margin-top:var(--spacing-lg)}.mb-lg{margin-bottom:var(--spacing-lg)}