@layer astro.images{:where([data-astro-image]){height:auto}:where([data-astro-image=full-width]){width:100%}:where([data-astro-image=constrained]){max-width:100%}[data-astro-image-fit=fill]{object-fit:fill}[data-astro-image-fit=contain]{object-fit:contain}[data-astro-image-fit=cover]{object-fit:cover}[data-astro-image-fit=scale-down]{object-fit:scale-down}[data-astro-image-pos=top]{object-position:top}[data-astro-image-pos=bottom]{object-position:bottom}[data-astro-image-pos=left]{object-position:left}[data-astro-image-pos=right]{object-position:right}[data-astro-image-pos=center]{object-position:center}[data-astro-image-pos=top-left]{object-position:top left}[data-astro-image-pos=top-right]{object-position:top right}[data-astro-image-pos=top-center]{object-position:top center}[data-astro-image-pos=bottom-left]{object-position:bottom left}[data-astro-image-pos=bottom-right]{object-position:bottom right}[data-astro-image-pos=bottom-center]{object-position:bottom center}[data-astro-image-pos=left-top]{object-position:left top}[data-astro-image-pos=left-bottom]{object-position:left bottom}[data-astro-image-pos=left-center]{object-position:left center}[data-astro-image-pos=right-top]{object-position:right top}[data-astro-image-pos=right-bottom]{object-position:right bottom}[data-astro-image-pos=right-center]{object-position:right center}[data-astro-image-pos=center-top]{object-position:center top}[data-astro-image-pos=center-bottom]{object-position:center bottom}[data-astro-image-pos=center-left]{object-position:center left}[data-astro-image-pos=center-right]{object-position:center right}}:root{color-scheme:dark;--ink-1000:#060505;--ink-950:#0b0a09;--ink-900:#121010;--ink-850:#191615;--ink-800:#211d1b;--ink-700:#2e2926;--ink-600:#403935;--ink-500:#5c534d;--bone-50:#f5f0e6;--bone-100:#e9e1d3;--bone-200:#d3c9b8;--bone-300:#b2a796;--bone-400:#8e8475;--bone-500:#6e655a;--cinnabar-200:#ff9a8a;--cinnabar-300:#ff6a55;--cinnabar-400:#ff3d2e;--cinnabar-500:#e0251b;--cinnabar-600:#b81a12;--cinnabar-700:#8a130d;--cinnabar-800:#520b07;--cinnabar-900:#2a0604;--bronze-200:#ead3a4;--bronze-300:#d6b882;--bronze-400:#b8955c;--bronze-500:#8f7044;--bronze-700:#4b3a24;--patina-300:#93bfac;--patina-400:#6d9a87;--patina-600:#3d5d50;--color-bg:var(--ink-950);--color-bg-deep:var(--ink-1000);--color-bg-raised:var(--ink-900);--color-surface:var(--ink-850);--color-surface-2:var(--ink-800);--color-surface-3:var(--ink-700);--color-border:#f5f0e61a;--color-border-strong:#f5f0e638;--color-text:var(--bone-100);--color-text-strong:var(--bone-50);--color-text-muted:var(--bone-300);--color-text-faint:var(--bone-400);--color-accent:var(--cinnabar-500);--color-accent-fill:var(--cinnabar-600);--color-accent-hot:var(--cinnabar-400);--color-accent-soft:var(--cinnabar-300);--color-accent-deep:var(--cinnabar-700);--color-accent-wash:#e0251b1f;--color-metal:var(--bronze-400);--color-metal-soft:var(--bronze-300);--color-patina:var(--patina-400);--color-focus:var(--cinnabar-400);--color-selection:#e0251b8c;--ff-display:var(--font-display), "Arial Narrow", "Helvetica Neue", sans-serif;--ff-serif:var(--font-serif), Georgia, "Times New Roman", serif;--ff-mono:var(--font-mono), ui-monospace, "SFMono-Regular", Menlo, monospace;--ff-zh-heading:var(--font-zh,var(--font-zh-codex,var(--font-zh-ui))), "Songti SC", "STSong", "Noto Serif CJK SC", "Source Han Serif SC", serif;--ff-zh-ui:var(--font-zh-ui), "Songti SC", "STSong", serif;--ff-zh-body:"PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;--ff-brush:var(--font-brush), "STXingkai", "STKaiti", "KaiTi", serif;--ff-body:var(--ff-serif);--ff-heading:var(--ff-display);--step--2:clamp(.69rem, .67rem + .1vw, .75rem);--text-micro:.7rem;--step--1:clamp(.83rem, .8rem + .15vw, .94rem);--step-0:clamp(1.06rem, 1rem + .25vw, 1.22rem);--step-1:clamp(1.27rem, 1.19rem + .37vw, 1.56rem);--step-2:clamp(1.52rem, 1.39rem + .6vw, 2.03rem);--step-3:clamp(1.83rem, 1.6rem + 1vw, 2.7rem);--step-4:clamp(2.2rem, 1.82rem + 1.7vw, 3.6rem);--step-5:clamp(2.64rem, 2.02rem + 2.75vw, 4.8rem);--step-6:clamp(3.17rem, 2.2rem + 4.3vw, 6.4rem);--step-7:clamp(3.8rem, 2.2rem + 7vw, 9.5rem);--step-mega:clamp(4.5rem, 1.5rem + 13vw, 16rem);--lh-tight:.88;--lh-snug:1.12;--lh-body:1.62;--tracking-display:-.01em;--tracking-caps:.14em;--space-3xs:clamp(.25rem, .23rem + .1vw, .31rem);--space-2xs:clamp(.5rem, .47rem + .15vw, .63rem);--space-xs:clamp(.75rem, .7rem + .25vw, .94rem);--space-s:clamp(1rem, .93rem + .35vw, 1.25rem);--space-m:clamp(1.5rem, 1.4rem + .5vw, 1.88rem);--space-l:clamp(2rem, 1.86rem + .7vw, 2.5rem);--space-xl:clamp(3rem, 2.8rem + 1vw, 3.75rem);--space-2xl:clamp(4rem, 3.7rem + 1.5vw, 5rem);--space-3xl:clamp(6rem, 5.5rem + 2.5vw, 7.5rem);--space-4xl:clamp(8rem, 7rem + 5vw, 11rem);--container:1360px;--container-narrow:860px;--measure:66ch;--gutter:clamp(1.1rem, 4vw, 3rem);--header-h:64px;--radius-0:0;--radius-1:2px;--radius-2:4px;--cut:14px;--clip-chamfer:polygon(var(--cut) 0, 100% 0, 100% calc(100% - var(--cut)), calc(100% - var(--cut)) 100%, 0 100%, 0 var(--cut));--slash-angle:-8deg;--shadow-1:0 1px 0 #ffffff0a inset, 0 10px 30px -12px #000000b3;--shadow-2:0 1px 0 #ffffff0d inset, 0 30px 60px -20px #000000d9;--glow-cinnabar:0 0 24px #ff3d2e73, 0 0 2px #ff3d2ee6;--ease-blade:cubic-bezier(.77, 0, .18, 1);--ease-ink:cubic-bezier(.22, 1, .36, 1);--ease-stamp:cubic-bezier(.34, 1.56, .64, 1);--dur-1:.12s;--dur-2:.24s;--dur-3:.48s;--dur-4:.9s;--dur-5:1.4s;--z-below:-1;--z-raised:10;--z-sticky:100;--z-header:200;--z-overlay:500;--z-cursor:900;--z-grain:950}:root:lang(zh){--ff-body:var(--ff-zh-body);--ff-heading:var(--ff-zh-heading);--lh-body:1.85;--tracking-display:.02em}@media (prefers-reduced-motion:reduce){:root{--dur-1:0s;--dur-2:0s;--dur-3:0s;--dur-4:0s;--dur-5:0s}}@layer reset{*,:before,:after{box-sizing:border-box}*{margin:0}html{-webkit-text-size-adjust:none;text-size-adjust:none;hanging-punctuation:first last;scroll-padding-top:calc(var(--header-h) + 1rem)}body{min-height:100svh}img,picture,video,canvas,svg{max-width:100%;display:block}img{height:auto}input,button,textarea,select{font:inherit;color:inherit}button{cursor:pointer;background:0 0;border:0;padding:0}p,h1,h2,h3,h4,h5,h6{overflow-wrap:break-word}h1,h2,h3,h4{text-wrap:balance}p,li,figcaption{text-wrap:pretty}ul[role=list],ol[role=list]{padding:0;list-style:none}[hidden]{display:none!important}}@layer base{::placeholder{color:var(--color-text-faint);opacity:1}html{background:var(--color-bg);color:var(--color-text);font-family:var(--ff-body);font-size:100%;line-height:var(--lh-body);font-optical-sizing:auto;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizelegibility}body{font-size:var(--step-0);background:radial-gradient(1200px 600px at 85% -10%, #e0251b12, transparent 60%), radial-gradient(900px 700px at -10% 30%, #b8955c0d, transparent 60%), var(--color-bg);overflow-x:clip}::selection{background:var(--color-selection);color:var(--bone-50)}:focus-visible{outline:2px solid var(--color-focus);outline-offset:3px}a{color:inherit;text-decoration-color:var(--color-accent);text-underline-offset:.22em;transition:color var(--dur-2) var(--ease-ink), text-decoration-color var(--dur-2);text-decoration-thickness:1px}a:hover{color:var(--color-text-strong);text-decoration-color:var(--color-accent-hot)}h1,h2,h3,h4{font-family:var(--ff-heading);color:var(--color-text-strong);line-height:var(--lh-snug);letter-spacing:var(--tracking-display);font-weight:800}:lang(en) :is(h1,h2,h3){text-transform:uppercase}:lang(zh) :is(h1,h2,h3,h4){font-weight:900}hr{background:linear-gradient(90deg, transparent, var(--color-border-strong) 15%, var(--color-border-strong) 85%, transparent);height:1px;margin-block:var(--space-xl);border:0}code,kbd,samp{font-family:var(--ff-mono);font-size:.88em}ruby rt{font-family:var(--ff-mono);letter-spacing:.04em;color:var(--color-text-muted);font-size:.42em}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--ink-1000)}::-webkit-scrollbar-thumb{background:var(--ink-600);border:2px solid var(--ink-1000)}::-webkit-scrollbar-thumb:hover{background:var(--cinnabar-700)}@view-transition{navigation:auto}::view-transition-old(root){animation:vt-out .26s var(--ease-blade) both}::view-transition-new(root){animation:vt-in .42s var(--ease-blade) both}@keyframes vt-out{to{opacity:0;clip-path:polygon(0 0,100% 0,100% 0%,0 18%)}}@keyframes vt-in{0%{clip-path:polygon(0 82%,100% 100%,100% 100%,0 100%)}to{clip-path:polygon(0 -20%,100% 0,100% 100%,0 100%)}}@media (prefers-reduced-motion:reduce){::view-transition-old(root),::view-transition-new(root){animation:none}}}@layer layout{.container{width:min(100% - 2 * var(--gutter), var(--container));margin-inline:auto}.container-narrow{width:min(100% - 2 * var(--gutter), var(--container-narrow));margin-inline:auto}.stack>*+*{margin-block-start:var(--stack-space,var(--space-s))}.cluster{gap:var(--cluster-gap,var(--space-xs));flex-wrap:wrap;align-items:center;display:flex}.grid-auto{gap:var(--grid-gap,var(--space-m));grid-template-columns:repeat(auto-fill, minmax(min(100%, var(--grid-min,18rem)), 1fr));display:grid}.section{padding-block:var(--space-3xl);position:relative}}@layer components{.btn{--cut:12px;font-family:var(--ff-mono);letter-spacing:.16em;text-transform:uppercase;clip-path:var(--clip-chamfer);isolation:isolate;transition:color var(--dur-3) var(--ease-blade), background-color var(--dur-3) var(--ease-blade);align-items:center;gap:.7rem;padding:.95rem 1.5rem;font-size:.78rem;font-weight:500;text-decoration:none;display:inline-flex;position:relative;overflow:hidden}.btn:before{content:"";z-index:-1;background:var(--btn-sweep,var(--bone-50));transform-origin:0;transition:transform var(--dur-3) var(--ease-blade);position:absolute;inset:0;transform:translate(-102%)skew(-20deg)}.btn:hover:before{transform:translate(0)skew(0)}.btn svg{transition:transform var(--dur-3) var(--ease-blade)}.btn:hover svg{transform:translate(4px)}.btn--primary{background:var(--color-accent-fill);color:var(--bone-50)}.btn--primary:hover{color:var(--ink-1000)}.btn--ghost{color:var(--color-text-strong);box-shadow:inset 0 0 0 1px var(--color-border-strong);--btn-sweep:var(--color-accent);background:#f5f0e60a}.btn--ghost:hover{color:var(--bone-50)}.btn--small{--cut:8px;padding:.6rem 1rem;font-size:.7rem}.kicker{font-family:var(--ff-mono);letter-spacing:.22em;text-transform:uppercase;color:var(--color-accent-hot);align-items:center;gap:.6rem;font-size:.72rem;display:inline-flex}.kicker:before{content:"";background:currentColor;width:1.8rem;height:2px;transform:skew(-35deg)}.kicker .num{color:var(--color-text-faint)}.sec-head{gap:var(--space-xs);margin-bottom:var(--space-xl);display:grid;position:relative}.sec-title{font-size:var(--step-6);line-height:var(--lh-tight);letter-spacing:-.01em}:lang(zh) .sec-title{font-size:var(--step-5);line-height:1.1}.sec-zh{font-size:var(--step-7);color:var(--cinnabar-800);opacity:.9;pointer-events:none;z-index:-1;line-height:1;position:absolute;top:-.2em;right:0}.sec-lede{max-width:52ch;font-size:var(--step-1);color:var(--color-text-muted);line-height:1.45}.tag{font-family:var(--ff-mono);font-size:var(--text-micro);letter-spacing:.12em;text-transform:uppercase;color:var(--color-text-muted);border:1px solid var(--color-border-strong);align-items:center;gap:.35rem;padding:.25rem .55rem;display:inline-flex}.tag--red{color:var(--bone-50);border-color:var(--color-accent);background:var(--color-accent-fill)}.tag--metal{color:var(--color-metal-soft);border-color:color-mix(in oklab, var(--bronze-400) 50%, transparent)}.panel{--cut:18px;background:linear-gradient(160deg, var(--color-surface), var(--color-bg-raised));clip-path:var(--clip-chamfer);box-shadow:var(--shadow-1);position:relative}.panel:after{content:"";pointer-events:none;border:1px solid var(--color-border);clip-path:var(--clip-chamfer);position:absolute;inset:0}.crop{position:relative}.crop:before,.crop:after{content:"";pointer-events:none;border-color:var(--color-accent);opacity:.8;border-style:solid;width:14px;height:14px;position:absolute}.crop:before{border-width:1px 0 0 1px;top:-7px;left:-7px}.crop:after{border-width:0 1px 1px 0;bottom:-7px;right:-7px}.slash-divider{pointer-events:none;height:80px;position:relative;overflow:hidden}.slash-divider:before{content:"";background:linear-gradient(90deg, transparent, var(--cinnabar-500) 20%, var(--bone-50) 50%, var(--cinnabar-500) 80%, transparent);height:1px;position:absolute;top:50%;left:-10%;right:-10%;transform:rotate(-2.4deg);box-shadow:0 0 14px #ff3d2e99}.marquee{--gap:3rem;user-select:none;gap:var(--gap);display:flex;overflow:hidden;mask-image:linear-gradient(90deg,#0000,#000 8% 92%,#0000)}.marquee__track{align-items:center;gap:var(--gap);min-width:100%;animation:marquee var(--marquee-dur,38s) linear infinite;flex:none;display:flex}.marquee--reverse .marquee__track{animation-direction:reverse}@keyframes marquee{to{transform:translateX(calc(-100% - var(--gap)))}}@media (prefers-reduced-motion:reduce){.marquee__track{animation:none}}}@layer utilities{.visually-hidden{clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.skip-link{z-index:calc(var(--z-header) + 1);background:var(--color-accent);color:var(--bone-50);font-family:var(--ff-mono);padding:.6rem 1rem;text-decoration:none;position:absolute;top:-100px;left:1rem}.skip-link:focus{top:1rem}.mono{font-family:var(--ff-mono)}.caps{text-transform:uppercase;letter-spacing:var(--tracking-caps)}.brush{font-family:var(--ff-brush);font-weight:400}.text-accent{color:var(--color-accent-hot)}.text-muted{color:var(--color-text-muted)}.vertical{writing-mode:vertical-rl;text-orientation:upright}}.grain{pointer-events:none;z-index:var(--z-grain);opacity:.075;mix-blend-mode:overlay;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.4 -.25'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");position:fixed;inset:-50%}@media (prefers-reduced-motion:no-preference){.grain{animation:1.2s steps(6,end) infinite grain}}@keyframes grain{0%{transform:translate(0)}20%{transform:translate(-3%,2%)}40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-1%)}80%{transform:translate(3%,3%)}to{transform:translate(0)}}html.js-motion [data-reveal]:not(.is-revealed){opacity:0}.prose{--flow:1.15em;max-width:var(--measure);color:var(--color-text);font-size:var(--step-0);line-height:var(--lh-body)}.prose>*+*{margin-block-start:var(--flow)}.prose>:first-child{margin-block-start:0}.prose p{font-weight:380}.prose>p:first-of-type:first-letter{font-family:var(--ff-display);float:left;color:var(--color-accent-hot);padding:.06em .1em 0 0;font-size:4.1em;font-weight:900;line-height:.82}:lang(zh) .prose>p:first-of-type:first-letter{font-family:var(--ff-zh-heading);font-size:3.2em;line-height:1}.prose h2{font-size:var(--step-3);scroll-margin-top:calc(var(--header-h) + 1.5rem);margin-block-start:2.2em;padding-block-start:.9em;position:relative}.prose h2:before{content:"";background:var(--color-accent);transform-origin:0;width:3.2rem;height:3px;position:absolute;inset:0 auto auto 0;transform:skew(-30deg)}.prose h3{font-size:var(--step-2);scroll-margin-top:calc(var(--header-h) + 1.5rem);margin-block-start:1.8em}.prose h4{font-family:var(--ff-mono);font-size:var(--step--1);text-transform:uppercase;letter-spacing:var(--tracking-caps);color:var(--color-metal-soft);margin-block-start:1.6em}.prose :is(h2,h3)+*{margin-block-start:.7em}.prose strong{color:var(--color-text-strong);font-weight:650}.prose em{font-style:italic}.prose a{text-decoration-line:underline;text-decoration-color:color-mix(in oklab, var(--color-accent) 70%, transparent)}.prose ul,.prose ol{padding-inline-start:1.3em}.prose li+li{margin-block-start:.45em}.prose ul li::marker{content:"◆  ";color:var(--color-accent);font-size:.7em}.prose ol li::marker{font-family:var(--ff-mono);color:var(--color-metal);font-size:.85em}.prose blockquote{border-inline-start:2px solid var(--color-accent);font-size:var(--step-1);color:var(--color-text-strong);padding:.4em 0 .4em 1.4em;font-style:italic;position:relative}:lang(zh) .prose blockquote{font-style:normal;font-family:var(--ff-zh-heading);font-weight:700}.prose table{border-collapse:collapse;width:100%;font-size:var(--step--1);font-family:var(--ff-mono);display:block;overflow-x:auto}.prose th,.prose td{text-align:start;border-bottom:1px solid var(--color-border);vertical-align:top;padding:.7em .9em}.prose th{color:var(--color-metal-soft);text-transform:uppercase;letter-spacing:.08em;border-bottom-color:var(--color-border-strong);white-space:nowrap;font-weight:500}.prose tbody tr:hover{background:var(--color-accent-wash)}.prose code{background:var(--color-surface);border:1px solid var(--color-border);padding:.1em .35em}.prose hr{margin-block:2.5em}.prose>.bleed,.prose>figure.wide,.prose>.explainer{max-width:none;width:min(100vw - 2 * var(--gutter), 1100px)}.seal[data-astro-cid-zk2i5tnz]{width:var(--seal-size);height:var(--seal-size);transform:rotate(var(--seal-rot));mix-blend-mode:normal;flex:none;place-items:center;display:inline-grid}.seal[data-astro-cid-zk2i5tnz] svg[data-astro-cid-zk2i5tnz]{width:100%;height:100%;overflow:visible}.seal-bg[data-astro-cid-zk2i5tnz]{fill:var(--seal-color,var(--cinnabar-500))}.seal-ring[data-astro-cid-zk2i5tnz]{fill:none;stroke:var(--seal-color,var(--cinnabar-500));stroke-width:6px}.seal-ink[data-astro-cid-zk2i5tnz]{fill:var(--seal-ink,var(--bone-50));font-family:var(--ff-zh-ui);font-weight:900}.seal-ink--red[data-astro-cid-zk2i5tnz]{fill:var(--seal-color,var(--cinnabar-500))}.search-btn[data-astro-cid-7wytpbdj]{border:1px solid var(--color-border-strong);height:36px;color:var(--color-text-muted);transition:all var(--dur-2);align-items:center;gap:.45rem;padding:0 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