:root{--bg: #0b0f1a;--bg-elevated: #111726;--bg-card: #131a2b;--bg-card-hover: #182135;--text: #e6eaf2;--text-muted: #9aa3b2;--text-faint: #808a9c;--accent: #6c8cff;--accent-strong: #8aa7ff;--on-accent: #0b0f1a;--border: rgba(230, 234, 242, .1);--border-strong: rgba(230, 234, 242, .2);--radius-sm: 8px;--radius: 14px;--radius-lg: 16px;--content-width: 1200px;--nav-height: 64px;--ease: cubic-bezier(.22, 1, .36, 1);--ease-soft: cubic-bezier(.4, 0, .2, 1);--font-sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;--font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", "JetBrains Mono", Consolas, "Liberation Mono", monospace;color-scheme:dark}*,*:before,*:after{box-sizing:border-box}*{margin:0}html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-height) + 20px)}body{font-family:var(--font-sans);background-color:var(--bg);color:var(--text);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;min-height:100vh}img,svg,video,canvas{display:block;max-width:100%}img{height:auto}a{color:var(--accent-strong);text-decoration:none;transition:color .2s var(--ease-soft)}a:hover{color:var(--text)}button,input,textarea,select{font:inherit;color:inherit}h1,h2,h3,h4{line-height:1.25;font-weight:700;letter-spacing:-.01em;color:var(--text)}code,pre{font-family:var(--font-mono)}:focus-visible{outline:2px solid var(--accent-strong);outline-offset:3px;border-radius:4px}.container{width:100%;max-width:var(--content-width);margin-inline:auto;padding-inline:clamp(16px,4vw,32px)}.section{padding-block:clamp(56px,9vw,104px);scroll-margin-top:calc(var(--nav-height) + 16px)}.section-head{max-width:640px;margin-bottom:clamp(32px,5vw,56px)}.section-eyebrow{display:inline-block;font-size:.85rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent-strong);margin-bottom:8px}.section-title{font-size:clamp(1.75rem,4vw,2.5rem);margin-bottom:12px}.section-subtitle{color:var(--text-muted);font-size:1.05rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:.7rem 1.4rem;border-radius:var(--radius);border:1px solid transparent;font-weight:600;font-size:.98rem;cursor:pointer;white-space:nowrap;transition:transform .18s var(--ease-soft),background-color .2s var(--ease-soft),border-color .2s var(--ease-soft),color .2s var(--ease-soft)}.btn:active{transform:translateY(1px)}.btn-primary{background:var(--accent);color:var(--on-accent)}.btn-primary:hover{background:var(--accent-strong);color:var(--on-accent)}.btn-outline{border-color:var(--border-strong);color:var(--text);background:transparent}.btn-outline:hover{border-color:var(--accent-strong);color:var(--accent-strong)}.btn-ghost{background:transparent;color:var(--text-muted)}.btn-ghost:hover{color:var(--text)}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;transition:transform .25s var(--ease),border-color .25s var(--ease),background-color .25s var(--ease),box-shadow .25s var(--ease)}.card:hover{border-color:var(--border-strong);background:var(--bg-card-hover);transform:translateY(-4px)}.tag{display:inline-flex;align-items:center;padding:.2rem .6rem;font-size:.78rem;font-weight:500;color:var(--text-muted);background:#e6eaf20f;border:1px solid var(--border);border-radius:999px;white-space:nowrap}::selection{background:var(--accent);color:var(--on-accent)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.page{padding-top:48px;padding-bottom:96px}.back{display:inline-block;margin-bottom:28px;color:var(--text-muted);font-size:.95rem}.back:hover{color:var(--accent-strong)}.prose{font-size:1.02rem;line-height:1.8;color:var(--text);overflow-wrap:break-word}.prose>*+*{margin-top:1.1em}.prose h1,.prose h2,.prose h3,.prose h4{margin-top:2em;margin-bottom:.6em;scroll-margin-top:calc(var(--nav-height) + 24px)}.prose h1{font-size:1.75rem}.prose h2{font-size:1.45rem;padding-bottom:8px;border-bottom:1px solid var(--border)}.prose h3{font-size:1.2rem}.prose p,.prose ul,.prose ol{color:var(--text-muted)}.prose a{color:var(--accent-strong);text-decoration:underline;text-underline-offset:3px}.prose a:hover{color:var(--text)}.prose ul,.prose ol{padding-left:1.5em}.prose li{margin-top:.4em}.prose blockquote{border-left:3px solid var(--accent);padding:8px 16px;color:var(--text-muted);background:#e6eaf20a;border-radius:0 var(--radius-sm) var(--radius-sm) 0}.prose code{background:#e6eaf214;padding:.15em .4em;border-radius:4px;font-size:.88em}.prose pre{padding:16px;border-radius:var(--radius);background:#0d1117;border:1px solid var(--border);overflow-x:auto;font-size:.9rem;line-height:1.6}.prose pre code{background:transparent;padding:0;border-radius:0;font-size:inherit}.prose img{border-radius:var(--radius)}.prose hr{border:none;border-top:1px solid var(--border);margin-block:2em}.prose table{width:100%;border-collapse:collapse;font-size:.95rem}.prose th,.prose td{border:1px solid var(--border);padding:8px 12px;text-align:left}.prose th{background:#e6eaf20a}.detail-header{margin-bottom:40px;max-width:720px}.detail-title{font-size:clamp(1.75rem,4.5vw,2.5rem);margin-bottom:12px}.detail-desc{color:var(--text-muted);font-size:1.1rem;margin-bottom:16px}.detail-date{color:var(--text-faint);font-size:.9rem}.detail-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.detail-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}.article-layout{display:grid;gap:48px}@media(min-width:1024px){.article-layout{grid-template-columns:minmax(0,1fr) 240px;align-items:start}}.article-header{margin-bottom:32px}.article-title{font-size:clamp(1.75rem,4.5vw,2.5rem);margin-bottom:16px}.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;color:var(--text-faint);font-size:.9rem}.article-tags{display:flex;flex-wrap:wrap;gap:8px}.toc{position:sticky;top:calc(var(--nav-height) + 24px);padding:16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-card)}.toc-title{font-weight:600;font-size:.9rem;margin-bottom:12px;color:var(--text-muted)}.toc-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:8px}.toc-item a{color:var(--text-muted);font-size:.88rem;line-height:1.5}.toc-item a:hover{color:var(--accent-strong)}.toc-depth-3{padding-left:14px}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}