:root,:root.light{--ink-primary:#1C1A14;--ink-secondary:#4A463E;--ink-muted:#7A7468;--ink-subtle:#C9C3B5;--bg-void:#FAF9F6;--bg-substrate:#F4F2EC;--bg-leaf:#FFFFFF;--bg-raised:#FFFFFF;--aurora-1:#6366F1;--aurora-2:#7C6FF1;--aurora-3:#8B84F0;--aurora-4:#A598EC;--signal-info:oklch(0.58 0.12 235);--signal-success:oklch(0.55 0.12 150);--signal-warn:oklch(0.62 0.13 75);--signal-danger:oklch(0.55 0.14 25);--fs-micro:0.6875rem;--fs-caption:0.8125rem;--fs-body:1rem;--fs-reading:1.125rem;--fs-lede:1.25rem;--fs-h4:1.5rem;--fs-h3:1.875rem;--fs-h2:2.5rem;--fs-h1:3.5rem;--fs-display:clamp(4rem,8vw,8.5rem);--lh-tight:1.1;--lh-snug:1.25;--lh-normal:1.5;--lh-relaxed:1.75;--ease-out:cubic-bezier(0.16,1,0.3,1);--ease-in:cubic-bezier(0.7,0,0.84,0);--ease-in-out:cubic-bezier(0.87,0,0.13,1);--dur-instant:120ms;--dur-quick:260ms;--dur-flow:520ms;--dur-ambient:1800ms;--radius-bleed:2.875rem;--space-0:0;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-5:1.5rem;--space-6:2rem;--space-7:3rem;--space-8:4rem;--space-9:6rem;--space-10:8rem;--focus-ring:0 0 0 2px var(--bg-void),0 0 0 4px var(--aurora-1);--font-display:var(--font-fraunces),"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei UI","Microsoft YaHei",system-ui,sans-serif;--font-editorial:var(--font-instrument-serif),"LXGW WenKai","Source Han Serif SC","Noto Serif SC",Georgia,serif;--font-sans:var(--font-geist),"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei UI",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-mono:var(--font-geist-mono),"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;--aurora-field:radial-gradient(ellipse 80% 60% at 15% 0%,color-mix(in oklch,var(--aurora-1) 8%,transparent) 0%,transparent 50%),radial-gradient(ellipse 50% 40% at 85% 10%,color-mix(in oklch,var(--aurora-4) 4%,transparent) 0%,transparent 50%)}:root.dark{--ink-primary:#F4EFE6;--ink-secondary:#B8B3A8;--ink-muted:#6B6862;--ink-subtle:#3A3932;--bg-void:#05060A;--bg-substrate:#0B0D14;--bg-leaf:#12141D;--bg-raised:#1A1D28;--aurora-1:#818CF8;--aurora-2:#9189F6;--aurora-3:#9E87F3;--aurora-4:#B0A0EC;--signal-info:oklch(0.72 0.12 235);--signal-success:oklch(0.72 0.12 150);--signal-warn:oklch(0.78 0.13 75);--signal-danger:oklch(0.70 0.14 25);--aurora-field:radial-gradient(ellipse 80% 60% at 15% 0%,color-mix(in oklch,var(--aurora-1) 18%,transparent) 0%,transparent 50%),radial-gradient(ellipse 50% 40% at 85% 10%,color-mix(in oklch,var(--aurora-4) 8%,transparent) 0%,transparent 50%);--focus-ring:0 0 0 2px var(--bg-void),0 0 0 4px var(--aurora-1)}@supports (color:oklch(from red l c h)){:root,:root.light{--aurora-1:oklch(from var(--color-primary) l c h);--aurora-2:oklch(from var(--color-primary) calc(l + 0.02) calc(c * 0.92) calc(h + 18));--aurora-3:oklch(from var(--color-primary) calc(l + 0.05) calc(c * 0.82) calc(h + 36));--aurora-4:oklch(from var(--color-primary) calc(l + 0.08) calc(c * 0.68) calc(h + 60))}:root.dark{--aurora-1:oklch(from var(--color-primary) calc(l + 0.08) c h);--aurora-2:oklch(from var(--color-primary) calc(l + 0.10) calc(c * 0.92) calc(h + 18));--aurora-3:oklch(from var(--color-primary) calc(l + 0.12) calc(c * 0.82) calc(h + 36));--aurora-4:oklch(from var(--color-primary) calc(l + 0.10) calc(c * 0.68) calc(h + 60))}}html{word-break:normal;line-break:strict;text-wrap:pretty;font-feature-settings:"palt" 1}:focus{outline:none}:focus-visible{outline:none;box-shadow:var(--focus-ring);border-radius:var(--radius-sm,.5rem);transition:box-shadow var(--dur-instant) var(--ease-out)}.tnum,[data-tnum]{font-feature-settings:"tnum" 1,"cv11" 1;font-variant-numeric:tabular-nums}.aurora-layer{position:absolute;inset:0;pointer-events:none;background:var(--aurora-field);z-index:0}.aurora-layer[data-animated=true]{animation:aurora-drift 40s var(--ease-in-out) infinite}@keyframes aurora-drift{0%,to{transform:translate(0) rotate(0)}33%{transform:translate(2%,-1%) rotate(2deg)}66%{transform:translate(-1%,2%) rotate(-1deg)}}@keyframes breath{0%,to{font-variation-settings:"opsz" 144,"SOFT" 30,"WONK" 1}50%{font-variation-settings:"opsz" 144,"SOFT" 80,"WONK" 1}}@keyframes breath-soft{0%{opacity:.92;letter-spacing:-.02em;filter:brightness(.98)}40%{opacity:1;letter-spacing:-.015em;filter:brightness(1.04)}to{opacity:.92;letter-spacing:-.02em;filter:brightness(.98)}}@keyframes ink-bleed{0%{opacity:0;transform:translateY(2px);filter:blur(1.5px)}to{opacity:1;transform:translateY(0);filter:blur(0)}}@keyframes ink-blink{0%,to{opacity:1}50%{opacity:.2}}@keyframes shimmer-sweep{0%{transform:translateX(-100%)}to{transform:translateX(100%)}}.ink-cursor{display:inline-block;width:.4em;height:1em;vertical-align:text-bottom;background:var(--aurora-1);animation:ink-blink .8s var(--ease-in-out) infinite;box-shadow:0 0 4px var(--aurora-1);margin-left:.1em}@media (prefers-reduced-motion:reduce){*,:after,:before{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}.ink-cursor{animation:none;opacity:.6}.aurora-field-root,.aurora-layer{animation:none!important}}@media (hover:none) and (pointer:coarse){.touch-target,[role=button],a.btn,button{min-height:44px;min-width:44px}}@media (prefers-contrast:more){:root,:root.dark{--border-default:color-mix(in oklch,var(--ink-primary) 40%,transparent);--border-subtle:color-mix(in oklch,var(--ink-primary) 28%,transparent)}}:root{--font-fraunces:var(--font-playfair);--font-instrument-serif:var(--font-noto-serif-sc);--font-geist:var(--font-inter);--font-geist-mono:ui-monospace,SFMono-Regular,Menlo,"Courier New",monospace}::selection{background:color-mix(in oklch,var(--aurora-1) 32%,transparent);color:var(--ink-primary);text-shadow:none}::-moz-selection{background:color-mix(in oklch,var(--aurora-1) 32%,transparent);color:var(--ink-primary);text-shadow:none}:root.light ::-moz-selection{background:color-mix(in oklch,var(--aurora-1) 18%,transparent);color:var(--ink-primary)}:root.light ::-moz-selection,:root.light ::selection{background:color-mix(in oklch,var(--aurora-1) 18%,transparent);color:var(--ink-primary)}[contenteditable=true],[contenteditable],input,textarea{caret-color:var(--aurora-1)}.surface-leaf{background:color-mix(in oklch,var(--bg-leaf) 85%,transparent);backdrop-filter:blur(16px) saturate(120%);border:1px solid color-mix(in oklch,var(--ink-primary) 6%,transparent);border-radius:var(--radius-lg,1rem);transition:border-color var(--dur-quick) var(--ease-out),box-shadow var(--dur-quick) var(--ease-out)}:root.light .surface-leaf{background:color-mix(in oklch,#ffffff 92%,transparent);backdrop-filter:blur(8px) saturate(110%);border:1px solid color-mix(in oklch,var(--ink-primary) 8%,transparent);box-shadow:0 1px 3px rgba(0,0,0,.04)}.surface-raised{background:color-mix(in oklch,var(--bg-raised) 80%,transparent);backdrop-filter:blur(24px) saturate(140%);border:1px solid color-mix(in oklch,var(--ink-primary) 10%,transparent);border-radius:var(--radius-lg,1rem);box-shadow:0 1px 0 inset color-mix(in oklch,var(--ink-primary) 8%,transparent),0 8px 24px -8px rgba(0,0,0,.4)}:root.light .surface-raised{background:color-mix(in oklch,#ffffff 94%,transparent);backdrop-filter:blur(10px) saturate(120%);box-shadow:inset 0 1px 0 rgba(255,255,255,.6),0 8px 24px -8px rgba(0,0,0,.08)}.surface-overlay{background:color-mix(in oklch,var(--bg-raised) 70%,transparent);backdrop-filter:blur(40px) saturate(180%);border:1px solid color-mix(in oklch,var(--ink-primary) 14%,transparent);border-radius:var(--radius-xl,1.5rem);box-shadow:0 1px 0 inset color-mix(in oklch,var(--ink-primary) 12%,transparent),0 20px 60px -20px color-mix(in oklch,var(--aurora-1) 20%,black),0 0 0 1px color-mix(in oklch,var(--aurora-1) 8%,transparent)}:root.light .surface-overlay{background:color-mix(in oklch,#ffffff 96%,transparent);backdrop-filter:blur(20px) saturate(140%);box-shadow:0 1px 0 inset rgba(255,255,255,.8),0 20px 60px -20px rgba(0,0,0,.12),0 0 0 1px color-mix(in oklch,var(--aurora-1) 12%,transparent)}.surface-luminous{position:relative;overflow:hidden;background:linear-gradient(135deg,color-mix(in oklch,var(--aurora-1) 12%,transparent) 0,color-mix(in oklch,var(--bg-raised) 90%,transparent) 50%),var(--bg-raised);backdrop-filter:blur(40px) saturate(160%);border:1px solid color-mix(in oklch,var(--aurora-1) 30%,transparent);border-radius:var(--radius-xl,1.5rem);box-shadow:0 1px 0 inset color-mix(in oklch,var(--aurora-1) 20%,transparent),0 20px 60px -10px color-mix(in oklch,var(--aurora-1) 30%,black)}.surface-luminous:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at top left,color-mix(in oklch,var(--aurora-1) 18%,transparent) 0,transparent 50%);pointer-events:none;z-index:0}.surface-luminous>*{position:relative;z-index:1}[data-interactive].surface-leaf,[data-interactive].surface-raised{position:relative;cursor:pointer;overflow:hidden}[data-interactive].surface-leaf:after,[data-interactive].surface-raised:after{content:"";position:absolute;left:0;top:0;bottom:0;width:2px;background:linear-gradient(to bottom,transparent 0,color-mix(in oklch,var(--aurora-1) 0%,transparent) 6%,var(--aurora-1) 18%,var(--aurora-1) 82%,color-mix(in oklch,var(--aurora-1) 0%,transparent) 94%,transparent 100%);border-top-left-radius:inherit;border-bottom-left-radius:inherit;opacity:0;transition:opacity var(--dur-quick) var(--ease-out),filter var(--dur-quick) var(--ease-out);pointer-events:none}[data-interactive].surface-leaf:hover,[data-interactive].surface-raised:hover{border-color:color-mix(in oklch,var(--aurora-1) 30%,transparent)}[data-interactive].surface-leaf:hover:after,[data-interactive].surface-raised:hover:after{opacity:1;filter:drop-shadow(0 0 6px color-mix(in oklch,var(--aurora-1) 70%,transparent))}.aurora-sweep{position:relative;overflow:hidden;isolation:isolate}.aurora-sweep:before{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 40%,color-mix(in oklch,var(--aurora-1) 20%,transparent) 50%,transparent 60%);transform:translateX(-100%);transition:transform var(--dur-flow) var(--ease-out);pointer-events:none;z-index:-1}.aurora-sweep:hover:before{transform:translateX(100%)}.aurora-divider{height:1px;background:linear-gradient(90deg,transparent 0,color-mix(in oklch,var(--aurora-1) 40%,transparent) 50%,transparent 100%);border:none;margin:0}.text-micro{font-size:var(--fs-micro)}.text-caption,.text-micro{line-height:var(--lh-normal)}.text-caption{font-size:var(--fs-caption)}.text-body{font-size:var(--fs-body);line-height:var(--lh-normal)}.text-reading{font-size:var(--fs-reading)}.text-lede,.text-reading{line-height:var(--lh-relaxed)}.text-lede{font-size:var(--fs-lede)}.text-h4{font-size:var(--fs-h4)}.text-h3,.text-h4{line-height:var(--lh-snug)}.text-h3{font-size:var(--fs-h3)}.text-h2{font-size:var(--fs-h2);line-height:var(--lh-snug);letter-spacing:-.01em;text-wrap:balance}.text-h1{font-size:var(--fs-h1);letter-spacing:-.02em}.text-display,.text-h1{line-height:var(--lh-tight);text-wrap:balance}.text-display{font-size:var(--fs-display);letter-spacing:-.03em}:where(.text-h2):lang(zh),:where(.text-h2):lang(zh-Hans){letter-spacing:.02em}:where(.text-h1):lang(zh),:where(.text-h1):lang(zh-Hans){letter-spacing:.03em}:where(.text-display):lang(zh),:where(.text-display):lang(zh-Hans){letter-spacing:.04em}.font-display{font-family:var(--font-display)}.font-editorial{font-family:var(--font-editorial)}.font-sans{font-family:var(--font-sans)}.font-mono{font-family:var(--font-mono)}:where(.font-display):lang(zh),:where(.font-display):lang(zh-CN),:where(.font-display):lang(zh-Hans){font-weight:700;letter-spacing:-.015em}:where(.font-editorial):lang(zh),:where(.font-editorial):lang(zh-CN),:where(.font-editorial):lang(zh-Hans){font-style:normal;font-synthesis:none;letter-spacing:.02em}.drop-cap:lang(zh):first-letter,.drop-cap:lang(zh-CN):first-letter,.drop-cap:lang(zh-Hans):first-letter{font-family:var(--font-editorial);font-style:normal}.reading-column{max-width:68ch;margin-inline:auto}.marginalia{font-family:var(--font-mono);font-size:var(--fs-caption);line-height:var(--lh-normal);color:var(--ink-muted);font-feature-settings:"tnum" 1}.marginalia .marginalia-item{padding:.3em 0 .3em .75em;border-left:1px solid transparent;transition:border-color var(--dur-quick) var(--ease-out),color var(--dur-quick) var(--ease-out)}.marginalia .marginalia-item[data-active=true]{border-left-color:var(--aurora-1);color:var(--ink-primary)}.marginalia .marginalia-item:hover{color:var(--ink-secondary)}.marginalia-label{display:block;font-size:var(--fs-micro);letter-spacing:.2em;text-transform:uppercase;color:var(--ink-muted);opacity:.6;margin-top:1.5em;margin-bottom:.5em}@supports (anchor-name:--article-title){.article-anchor{anchor-name:--article-title}.marginalia--anchored{position:absolute;position-anchor:--article-title;top:anchor(top);right:calc(anchor(left) + 13rem);width:10rem;position-try-fallbacks:--fallback-top-left,flip-inline}@position-try --fallback-top-left{top:8rem;right:auto;left:1rem}}.drop-cap:first-letter{font-family:var(--font-editorial);font-size:3.6em;line-height:1;font-weight:400;font-style:normal;float:left;margin:.05em .14em 0 0;color:var(--ink-primary);text-shadow:0 1px 0 color-mix(in oklch,var(--aurora-1) 22%,transparent);background:none;-webkit-background-clip:initial;background-clip:initial;-webkit-text-fill-color:currentColor}@supports (initial-letter:3) or (-webkit-initial-letter:3){.drop-cap:first-letter{initial-letter:3 drop 2;-webkit-initial-letter:3 drop 2;float:none;margin:0 .14em 0 0;font-size:inherit}}.section-mark:before{content:"§ ";color:var(--aurora-1);font-weight:400;margin-right:.15em;opacity:.55}.ai-stream{font-family:var(--font-editorial);font-size:var(--fs-reading);line-height:var(--lh-relaxed);color:var(--ink-primary)}.ai-stream .delta{display:inline;animation:ink-bleed .22s var(--ease-out) both;will-change:opacity,transform,filter}.ai-stream .think-block{display:block;font-family:var(--font-mono);font-size:var(--fs-caption);line-height:var(--lh-normal);color:var(--ink-muted);opacity:.7;padding:.5em .9em;border-left:2px solid var(--ink-subtle);margin:.6em 0;background:color-mix(in oklch,var(--ink-primary) 2%,transparent);border-radius:0 var(--radius-sm,.5rem) var(--radius-sm,.5rem) 0}@property --aurora-angle{syntax:"<angle>";inherits:true;initial-value:135deg}.aurora-text{--aurora-angle:135deg;background:linear-gradient(var(--aurora-angle),var(--aurora-1) 0,var(--aurora-2) 50%,var(--aurora-4) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;transition:--aurora-angle var(--dur-ambient,1.8s) var(--ease-out,cubic-bezier(.16,1,.3,1));will-change:--aurora-angle}@media (hover:hover){.aurora-text:hover,.group:hover .aurora-text,:hover>.aurora-text{--aurora-angle:315deg}}@media (prefers-reduced-motion:reduce){.aurora-text{transition:none}}.eyebrow{display:inline-block;font-family:var(--font-mono);font-size:var(--fs-caption);letter-spacing:.3em;text-transform:uppercase;color:var(--aurora-1);opacity:.75}.reading-progress{position:fixed;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--aurora-1) 0,var(--aurora-2) 50%,var(--aurora-4) 100%);transform:scaleX(var(--reading-progress,0));transform-origin:left center;z-index:100;pointer-events:none;box-shadow:0 0 8px color-mix(in oklch,var(--aurora-1) 60%,transparent);transition:transform .1s linear}@supports (animation-timeline:scroll()){.reading-progress--css{transform:scaleX(0);animation:reading-progress-fill linear forwards;animation-timeline:scroll(root block);transition:none;will-change:transform}@keyframes reading-progress-fill{0%{transform:scaleX(0)}to{transform:scaleX(1)}}@media (prefers-reduced-motion:reduce){.reading-progress--css{box-shadow:none}}}.cmd-chip{display:inline-flex;align-items:center;padding:.25em .55em;font-family:var(--font-mono);font-size:var(--fs-micro);letter-spacing:.1em;text-transform:uppercase;border-radius:var(--radius-sm,.5rem);background:color-mix(in oklch,var(--aurora-1) 15%,transparent);color:var(--aurora-1);border:1px solid color-mix(in oklch,var(--aurora-1) 30%,transparent);font-weight:500}