:root{--keyword-cover-bg: #FFFFFF;--keyword-cover-ink: #0B0B0C;--keyword-cover-accent: #FFCC1A;--keyword-cover-mark: var(--signal);--keyword-cover-pattern: color-mix(in srgb, var(--signal) 68%, transparent);--keyword-cover-black: #0B0B0C;--keyword-cover-font: "Arial Black", "Arial", "PingFang SC", "Microsoft YaHei", sans-serif;--signal: #D2FF3D;--on-signal: #0B0D0E;--signal-soft: color-mix(in srgb, var(--signal) 45%, transparent);--sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;--serif: "Newsreader", "Iowan Old Style", Charter, Georgia, serif;--mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--ease: cubic-bezier(.2, .7, .2, 1);--header-h: 64px;color-scheme:light;--paper: #F7F8F8;--surface: #FFFFFF;--surface-2: #EEF0F1;--ink: #0B0D0E;--prose: #1B1F23;--ink-2: #3F454B;--ink-3: #646A71;--line: #E1E4E6;--line-2: #C9CDD1;--ring: rgba(11, 13, 14, .6);--plate: #0F1112;--plate-2: #181B1E;--plate-border: transparent;--plate-ink: #E6E8EA;--plate-ink-2: #9AA1A8;--plate-line: rgba(230, 232, 234, .14);--plate-str: rgba(230, 232, 234, .3);--plate-dot: rgba(230, 232, 234, .3);--keyword-cover-border: #D2D5D8;--keyword-cover-shadow: 0 8px 24px rgba(11, 11, 12, .08);--header: rgba(247, 248, 248, .8);--progress: var(--ink);--code-border: transparent;--scrim: rgba(240, 242, 243, .62);--shadow: 0 40px 100px -24px rgba(11, 13, 14, .35)}:root[data-theme=dark]{color-scheme:dark;--paper: #0A0B0C;--surface: #111314;--surface-2: #181B1D;--ink: #ECEEEF;--prose: #D6DADD;--ink-2: #B0B6BC;--ink-3: #8A9198;--line: #212528;--line-2: #343A3F;--ring: transparent;--plate: #111315;--plate-2: #1A1D20;--plate-border: #24282C;--plate-ink: #E6E8EA;--plate-ink-2: #9AA1A8;--plate-line: rgba(230, 232, 234, .1);--plate-str: rgba(230, 232, 234, .24);--plate-dot: rgba(230, 232, 234, .22);--keyword-cover-border: #D2D5D8;--keyword-cover-shadow: 0 8px 24px rgba(0, 0, 0, .18);--header: rgba(10, 11, 12, .78);--progress: var(--signal);--code-border: #24282C;--scrim: rgba(5, 6, 7, .64);--shadow: 0 40px 120px -20px rgba(0, 0, 0, .85)}@media(prefers-color-scheme: dark){:root:not([data-theme]){color-scheme:dark;--paper: #0A0B0C;--surface: #111314;--surface-2: #181B1D;--ink: #ECEEEF;--prose: #D6DADD;--ink-2: #B0B6BC;--ink-3: #8A9198;--line: #212528;--line-2: #343A3F;--ring: transparent;--plate: #111315;--plate-2: #1A1D20;--plate-border: #24282C;--plate-ink: #E6E8EA;--plate-ink-2: #9AA1A8;--plate-line: rgba(230, 232, 234, .1);--plate-str: rgba(230, 232, 234, .24);--plate-dot: rgba(230, 232, 234, .22);--keyword-cover-border: #D2D5D8;--keyword-cover-shadow: 0 8px 24px rgba(0, 0, 0, .18);--header: rgba(10, 11, 12, .78);--progress: var(--signal);--code-border: #24282C;--scrim: rgba(5, 6, 7, .64);--shadow: 0 40px 120px -20px rgba(0, 0, 0, .85)}}@media(max-width: 760px){:root{--header-h: 56px}}*,*::before,*::after{box-sizing:border-box}html{background:var(--paper);-webkit-text-size-adjust:100%;text-size-adjust:100%;scroll-padding-top:calc(var(--header-h) + 24px)}body{margin:0;min-height:100vh;display:flex;flex-direction:column;font-family:var(--sans);color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body,body *{transition:background-color .35s var(--ease),border-color .35s var(--ease),color .35s var(--ease)}::selection{background:var(--signal);color:var(--on-signal)}a{color:inherit;text-decoration:none}button{font:inherit;color:inherit;background:none;border:0;padding:0;margin:0;cursor:pointer}input{font:inherit;color:inherit;margin:0}img{max-width:100%;height:auto}:focus-visible{outline:2px solid var(--ink);outline-offset:3px}[hidden]{display:none !important}.lt-lock{overflow:hidden}.lt-main{flex:1 0 auto;display:flex;flex-direction:column}.lt-wrap{width:100%;max-width:1376px;margin-left:auto;margin-right:auto;padding-left:clamp(20px,4vw,48px);padding-right:clamp(20px,4vw,48px)}.lt-skip{position:absolute;left:16px;top:-60px;z-index:60;display:inline-flex;align-items:center;height:40px;padding:0 16px;border-radius:999px;background:var(--ink);color:var(--paper);font-size:14px;font-weight:500}.lt-skip:focus{top:12px}.lt-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.lt-label{font-family:var(--mono);font-size:11.5px;line-height:1.4;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}.lt-kicker{display:flex;align-items:center;gap:10px}.lt-meta{display:flex;flex-wrap:wrap;align-items:center;gap:6px 10px;font-family:var(--mono);font-size:11.5px;line-height:1.4;letter-spacing:.07em;text-transform:uppercase;color:var(--ink-3)}.lt-cat{display:inline-flex;align-items:center;gap:8px;color:var(--ink)}.lt-cat::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--signal);box-shadow:0 0 0 1px var(--ring)}.lt-sq{display:inline-block;flex:none;width:7px;height:7px;border-radius:2px;background:var(--signal);box-shadow:0 0 0 1px var(--ring)}.lt-av{display:inline-grid;place-items:center;flex:none;width:26px;height:26px;border-radius:50%;background:var(--surface-2);border:1px solid var(--line-2);font:500 10px/1 var(--mono);letter-spacing:.02em;color:var(--ink-2)}.lt-av+.lt-av{margin-left:-7px;box-shadow:0 0 0 2px var(--paper)}.lt-avs{display:flex}.lt-kbd{display:inline-flex;align-items:center;justify-content:center;height:22px;padding:0 6px;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:6px;background:var(--paper);font:500 11px/1 var(--mono);color:var(--ink-3)}.lt-ct{background:linear-gradient(currentColor, currentColor) 0 100%/0% 1.5px no-repeat;-webkit-box-decoration-break:clone;box-decoration-break:clone;transition:background-size .45s var(--ease)}.lt-rule{flex:1;height:1px;background:var(--line)}.lt-section-head{display:flex;align-items:center;gap:16px;margin-bottom:32px}.lt-heading-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px}.lt-h2-sm{margin:0;font-size:32px;line-height:1.1;font-weight:500;letter-spacing:-0.025em}.lt-show-m{display:none !important}@media(max-width: 1180px){.lt-hide-l{display:none !important}}@media(max-width: 900px){.lt-hide-m{display:none !important}.lt-show-m{display:inline-grid !important}}@media(max-width: 760px){.lt-hide-s{display:none !important}}.no-js [data-requires-js]{display:none !important}@keyframes lt-draw{from{stroke-dashoffset:100}to{stroke-dashoffset:0}}@keyframes lt-fade{from{opacity:0}to{opacity:1}}@keyframes lt-pulse{0%{transform:scale(1);opacity:.9}100%{transform:scale(3.4);opacity:0}}@keyframes lt-breathe{0%,100%{opacity:.5}50%{opacity:1}}@keyframes lt-grow{from{transform:scaleY(0)}}@keyframes lt-enter{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@keyframes lt-pop{from{opacity:0;transform:translate(-50%, 10px) scale(0.985)}to{opacity:1;transform:translate(-50%, 0) scale(1)}}@keyframes lt-drift{0%,100%{transform:translate(0, 0)}50%{transform:translate(6px, -8px)}}@media(prefers-reduced-motion: reduce){*,*::before,*::after{animation:none !important;transition:none !important}}.lt-header{position:sticky;top:0;z-index:30;background:var(--header);-webkit-backdrop-filter:saturate(1.6) blur(14px);backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid var(--line)}.lt-header__bar{height:64px;display:flex;align-items:center;gap:20px}.lt-header__actions{margin-left:auto;display:flex;align-items:center;gap:6px}.lt-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;letter-spacing:-0.02em}.lt-brand svg{flex:none}.lt-nav{display:flex;align-items:center;gap:2px;margin-left:16px}.lt-nav a{position:relative;display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 12px;border-radius:999px;font-size:14.5px;color:var(--ink-2);transition:background-color .2s var(--ease),color .2s var(--ease)}.lt-nav a::after{content:"";position:absolute;inset:-4px 0}.lt-nav a:hover{color:var(--ink);background:var(--surface-2)}.lt-nav a[aria-current=page]{color:var(--ink)}.lt-nav a[aria-current=page]::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 1px var(--ring)}.lt-icon{position:relative;display:inline-grid;place-items:center;flex:none;width:44px;height:44px;border-radius:999px;color:var(--ink-2);transition:background-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}.lt-icon:hover{color:var(--ink);background:var(--surface-2)}.lt-icon:active{transform:scale(0.94)}.lt-search{position:relative;display:inline-flex;align-items:center;gap:10px;width:220px;height:40px;padding:0 6px 0 14px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink-3);font-size:14px;transition:border-color .2s var(--ease),color .2s var(--ease)}.lt-search::after{content:"";position:absolute;inset:-3px}.lt-search:hover{border-color:var(--line-2);color:var(--ink-2)}.lt-search span{flex:1}.lt-i-sun{display:none}:root[data-theme=dark] .lt-i-sun{display:block}:root[data-theme=dark] .lt-i-moon{display:none}@media(prefers-color-scheme: dark){:root:not([data-theme]) .lt-i-sun{display:block}:root:not([data-theme]) .lt-i-moon{display:none}}.lt-progress{position:absolute;left:0;bottom:-1px;height:2px;width:0;background:var(--progress);border-radius:0 2px 2px 0}@media(max-width: 760px){.lt-header__bar{height:56px;padding-right:8px}.lt-header .lt-brand{gap:9px;font-size:16px}.lt-header .lt-brand svg{width:22px;height:22px}.lt-header__actions{gap:0}}.lt-btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;height:46px;padding:0 22px;border-radius:999px;border:1px solid rgba(0,0,0,0);font-size:15px;font-weight:500;letter-spacing:-0.005em;white-space:nowrap;transition:background-color .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease),transform .25s var(--ease)}.lt-btn svg{flex:none;transition:transform .3s var(--ease)}.lt-btn:hover .go{transform:translateX(3px)}.lt-btn:hover .back{transform:translateX(-3px)}.lt-btn:active{transform:scale(0.98)}.lt-btn[aria-disabled=true]{opacity:.4;cursor:default;pointer-events:none}.lt-btn-sm{height:38px;padding:0 16px;font-size:14px}.lt-btn-sm::after{content:"";position:absolute;inset:-4px}.lt-btn-primary{background:var(--ink);color:var(--paper)}.lt-btn-primary:hover{background:var(--signal);color:var(--on-signal)}.lt-btn-secondary{border-color:var(--line-2);color:var(--ink)}.lt-btn-secondary:hover{border-color:var(--ink);background:var(--surface)}.lt-btn-ghost{color:var(--ink-2)}.lt-btn-ghost:hover{color:var(--ink);background:var(--surface-2)}.lt-btn.done,.lt-btn.is-copied{background:var(--signal);border-color:var(--signal);color:var(--on-signal)}.lt-when-idle{display:contents}.lt-when-copied{display:none}.is-copied .lt-when-idle{display:none}.is-copied .lt-when-copied{display:contents}.lt-more{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:500;color:var(--ink)}.lt-more svg{flex:none;transition:transform .3s var(--ease)}.lt-more span{background:linear-gradient(currentColor, currentColor) 0 100%/0% 1.5px no-repeat;-webkit-box-decoration-break:clone;box-decoration-break:clone;transition:background-size .45s var(--ease)}.lt-more:hover svg{transform:translateX(4px)}.lt-more:hover span{background-size:100% 1.5px}.lt-chip{position:relative;display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border:1px solid var(--line-2);border-radius:999px;font-size:13.5px;color:var(--ink-2);white-space:nowrap;transition:border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease)}.lt-chip::after{content:"";position:absolute;inset:-5px -2px}.lt-chip:hover{border-color:var(--ink);color:var(--ink)}.lt-chip.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}.lt-chip .n{font:11.5px var(--mono);color:var(--ink-3)}.lt-chip.on .n{color:var(--paper);opacity:.65}.lt-chip .hash{opacity:.6}.lt-chips{display:flex;flex-wrap:wrap;gap:8px}.lt-tab{position:relative;display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 14px;border-radius:999px;font-size:14.5px;color:var(--ink-2);transition:background-color .2s var(--ease),color .2s var(--ease)}.lt-tab::after{content:"";position:absolute;inset:-3px 0}.lt-tab:hover{background:var(--surface-2);color:var(--ink)}.lt-tab.on{background:var(--ink);color:var(--paper)}.lt-tab .n{font:11.5px var(--mono);color:var(--ink-3)}.lt-tab.on .n{color:var(--paper);opacity:.65}.lt-segs{display:inline-flex;gap:2px;padding:3px;border:1px solid var(--line);border-radius:999px;background:var(--surface)}.lt-seg{position:relative;height:32px;padding:0 14px;border-radius:999px;font-size:13px;color:var(--ink-3);transition:background-color .25s var(--ease),color .25s var(--ease)}.lt-seg::after{content:"";position:absolute;inset:-6px 0}.lt-seg:hover{color:var(--ink)}.lt-seg.on{background:var(--ink);color:var(--paper)}.lt-input{flex:1 1 220px;min-width:0;height:48px;padding:0 20px;border:1px solid var(--line-2);border-radius:999px;background:var(--paper);font-size:15px;transition:border-color .2s var(--ease),box-shadow .2s var(--ease)}.lt-input::placeholder{color:var(--ink-3)}.lt-input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 4px var(--signal-soft)}.lt-field{position:relative;display:flex}.lt-field>svg{position:absolute;left:16px;top:50%;margin-top:-8px;color:var(--ink-3);pointer-events:none}.lt-field .lt-input{padding-left:42px}.lt-status{margin:0;display:flex;align-items:center;gap:12px;min-height:48px;padding:0 20px;border-radius:999px;background:var(--signal);color:var(--on-signal);font-size:15px;font-weight:500}.lt-status.is-error{background:var(--surface-2);color:var(--ink)}.lt-card{display:flex;flex-direction:column;gap:18px}.lt-card:hover .lt-ct{background-size:100% 1.5px}.lt-card:hover .lt-more svg{transform:translateX(4px)}.lt-card:hover .lt-more span{background-size:100% 1.5px}.lt-card:hover .lt-cover{transform:scale(1.035)}.lt-card:hover .lt-arrow{opacity:1;transform:none}.lt-card--row{flex-direction:row;align-items:center}.lt-card--row:hover .lt-cover{transform:scale(1.06)}.lt-card__body{display:flex;flex-direction:column;gap:10px}.lt-card__title{margin:0;font-size:22px;line-height:1.25;font-weight:500;letter-spacing:-0.018em;text-wrap:balance}.lt-card__excerpt{margin:0;font-size:15px;line-height:1.55;color:var(--ink-2);text-wrap:pretty}.lt-card__byline{margin-top:4px;display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--ink-3)}.lt-card__byline .name{color:var(--ink-2)}.lt-card--post{min-width:0;gap:0;overflow:hidden;border:1px solid var(--line-2);border-radius:16px;background:var(--surface);box-shadow:0 4px 16px rgba(11,13,14,.035);transition:border-color .2s var(--ease),box-shadow .2s var(--ease),background-color .35s var(--ease)}.lt-card--post:hover,.lt-card--post:focus-visible{border-color:var(--ink-3);box-shadow:0 8px 24px rgba(11,13,14,.08)}.lt-card--post>.lt-frame{flex-shrink:0;border:0;border-bottom:1px solid var(--line);border-radius:0;box-shadow:none}.lt-card--post .lt-card__body{flex:1;min-width:0;gap:12px;padding:20px}.lt-card--post .lt-card__title,.lt-card--post .lt-card__excerpt{display:-webkit-box;-webkit-box-orient:vertical;overflow:hidden;overflow-wrap:anywhere;text-wrap:wrap}.lt-card--post .lt-card__title{font-size:20px;line-height:1.45;font-weight:600;min-height:4.35em;-webkit-line-clamp:3;line-clamp:3}.lt-card--post .lt-card__excerpt{font-size:14px;line-height:1.55;text-wrap:pretty;min-height:3.1em;-webkit-line-clamp:2;line-clamp:2}.lt-card--post .lt-card__byline{margin-top:auto;padding-top:16px;border-top:1px solid var(--line);gap:8px;font-size:12.5px}.lt-frame{position:relative;overflow:hidden;isolation:isolate;border-radius:12px;background:var(--plate);border:1px solid var(--plate-border);aspect-ratio:16/10}.lt-cover{position:absolute;inset:0;transition:transform .7s var(--ease)}.lt-cover--img{width:100%;height:100%;object-fit:cover}.lt-arrow{position:absolute;top:14px;right:14px;z-index:2;display:grid;place-items:center;width:38px;height:38px;border-radius:999px;background:var(--signal);color:var(--on-signal);opacity:0;transform:translate(-6px, 6px) scale(0.9);transition:opacity .3s var(--ease),transform .35s var(--ease)}.lt-st{position:absolute;left:9%;right:9%;top:calc(50% - 74px);z-index:1;display:flex;justify-content:space-between;pointer-events:none}.lt-st>span{display:flex;flex-direction:column;align-items:center}.lt-st b{display:grid;place-items:center;width:64px;height:34px;border-radius:8px;background:var(--plate-2);border:1px solid var(--plate-str);font:500 10.5px var(--mono);letter-spacing:.04em;color:var(--plate-ink)}.lt-st i{display:block;width:1px;height:30px;background:var(--plate-str)}.lt-st em{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--plate);border:1.5px solid var(--signal);font:600 12px/1 var(--mono);font-style:normal;color:var(--signal)}.lt-frame__caption{position:absolute;left:20px;right:20px;bottom:16px;z-index:1;display:flex;justify-content:space-between;gap:12px;font:11.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--plate-ink-2)}.lt-row{border-radius:10px;transition:background-color .2s var(--ease)}.lt-row:hover{background:var(--surface)}.lt-row:hover .lt-ct{background-size:100% 1.5px}.lt-row:hover .lt-row-arrow{opacity:1;transform:none}.lt-row-arrow{flex:none;opacity:0;transform:translateX(-6px);transition:opacity .25s var(--ease),transform .25s var(--ease)}.lt-rows{border-top:1px solid var(--line)}.lt-rows>*{border-bottom:1px solid var(--line)}.lt-mini-row{display:flex;align-items:baseline;gap:16px;padding:14px 12px;margin:0 -12px}.lt-mini-row time{flex:none;width:56px;font:12px var(--mono);color:var(--ink-3)}.lt-mini-row .t{flex:1;min-width:0;font-size:15.5px;font-weight:500;letter-spacing:-0.008em}@media(max-width: 760px){.lt-row.lt-row--grid{grid-template-columns:minmax(0, 1fr) !important;gap:6px !important}}.cv-field{background:radial-gradient(circle at calc(50% - 96px) calc(50% - 32px), var(--signal) 0 6px, transparent 7px),radial-gradient(circle at calc(50% - 96px) calc(50% - 32px), transparent 0 15px, var(--plate-str) 15px 16px, transparent 17px),radial-gradient(circle at calc(50% + 48px) calc(50% + 32px), var(--signal) 0 6px, transparent 7px),radial-gradient(circle at calc(50% + 144px) calc(50% - 64px), var(--plate-ink) 0 3px, transparent 4px),radial-gradient(circle, var(--plate-dot) 1.1px, transparent 1.7px) 50% 50%/16px 16px,var(--plate)}.cv-rings{background:radial-gradient(circle at 72% 46%, var(--signal) 0 16px, transparent 17px),repeating-radial-gradient(circle at 72% 46%, transparent 0 23px, var(--plate-str) 23px 24px),var(--plate)}.cv-lines{background:linear-gradient(118deg, transparent 0 60.5%, var(--signal) 60.5% 61.6%, transparent 61.6%),repeating-linear-gradient(118deg, transparent 0 11px, var(--plate-dot) 11px 12px),var(--plate)}.cv-grid{background:linear-gradient(var(--signal), var(--signal)) calc(50% + 40px) calc(50% - 40px)/40px 40px no-repeat,linear-gradient(var(--signal), var(--signal)) calc(50% + 80px) calc(50% - 40px)/40px 40px no-repeat,linear-gradient(var(--signal), var(--signal)) calc(50% + 80px) 50%/40px 40px no-repeat,linear-gradient(var(--plate-line) 1px, transparent 1px) 50% 50%/40px 40px,linear-gradient(90deg, var(--plate-line) 1px, transparent 1px) 50% 50%/40px 40px,var(--plate)}.cv-rays{background:radial-gradient(circle at 16% 86%, var(--signal) 0 10px, transparent 11px),repeating-conic-gradient(from 0deg at 16% 86%, var(--plate-dot) 0 0.4deg, transparent 0.4deg 6deg),var(--plate)}.cv-wave{background:radial-gradient(circle at 66% 40%, var(--signal) 0 8px, transparent 9px),radial-gradient(circle at 50% 100%, transparent 0 10.5px, var(--plate-str) 11px 12px, transparent 12.5px) 50% 50%/26px 13px,var(--plate)}.cv-stream{background:linear-gradient(transparent calc(50% - 1px), var(--signal) calc(50% - 1px) calc(50% + 1px), transparent calc(50% + 1px)),repeating-linear-gradient(90deg, transparent 0 47px, var(--plate-line) 47px 48px),radial-gradient(circle, var(--plate-dot) 1px, transparent 1.6px) 50% 50%/16px 16px,var(--plate)}.lt-cover:has(>.lt-cover-motif){background:radial-gradient(circle, var(--plate-line) 0.8px, transparent 1.4px) 50% 50%/28px 28px,var(--plate)}.lt-cover-motif{display:block;width:100%;height:100%;stroke:var(--plate-str);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}.lt-cover-motif .lt-motif__fine{stroke:var(--plate-line);stroke-width:1}.lt-cover-motif .lt-motif__accent{stroke:var(--signal);stroke-width:2.5}.lt-cover-motif .lt-motif__wash{fill:var(--signal);fill-opacity:.45;stroke:var(--signal)}.lt-cover-motif .lt-motif__solid{fill:var(--signal);stroke:none}.lt-frame--keywords{container-type:inline-size;background:var(--keyword-cover-bg);border-color:var(--keyword-cover-border);box-shadow:var(--keyword-cover-shadow)}.lt-frame--keywords>.lt-cover{display:block;--plate: var(--keyword-cover-bg);--plate-ink: rgba(11, 11, 12, .3);--plate-str: rgba(11, 11, 12, .16);--plate-line: rgba(11, 11, 12, .09);--plate-dot: rgba(11, 11, 12, .16);--signal: var(--keyword-cover-pattern);-webkit-mask-image:linear-gradient(90deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.36) 48%, #000);mask-image:linear-gradient(90deg, rgba(0, 0, 0, 0.1), rgba(0, 0, 0, 0.36) 48%, #000);pointer-events:none}.lt-frame--keywords>.lt-arrow{background:var(--keyword-cover-black);color:var(--keyword-cover-accent)}.lt-cover-type{position:absolute;inset:0;z-index:1;display:flex;flex-direction:column;padding:24px;padding:clamp(18px,6cqw,42px);color:var(--keyword-cover-ink);pointer-events:none}.lt-cover-type__meta{display:flex;align-items:center;justify-content:space-between;gap:16px;font:700 10px/1.3 var(--sans);font-size:clamp(9px,2.8cqw,12px);letter-spacing:.09em;text-transform:uppercase;color:var(--keyword-cover-black)}.lt-cover-type__category{display:flex;align-items:center;gap:8px}.lt-cover-type__category::before{content:"";width:5px;height:5px;border-radius:1px;background:var(--keyword-cover-mark)}.lt-cover-type__title{display:flex;flex-direction:column;justify-content:center;gap:.06em;flex:1;min-height:0;margin:14px 0;font:900 38px/1.1 var(--keyword-cover-font);font-size:clamp(26px,9.5cqw,76px);letter-spacing:-0.045em;overflow-wrap:anywhere}.lt-cover-type--medium .lt-cover-type__title{font-size:clamp(23px,8cqw,68px)}.lt-cover-type--long .lt-cover-type__title{font-size:clamp(20px,6.5cqw,56px)}.lt-cover-type__subtitle{align-self:flex-start;max-width:100%;padding:6px 12px;border-radius:999px;background:var(--keyword-cover-black);font:700 12px/1.5 var(--sans);font-size:clamp(11px,3.4cqw,17px);letter-spacing:.025em;color:var(--keyword-cover-accent)}.lt-plate{position:relative;aspect-ratio:1/1;overflow:hidden;border-radius:20px;background:var(--plate);border:1px solid var(--plate-border);color:var(--plate-ink)}.lt-plate>svg{position:absolute;inset:0;width:100%;height:100%;display:block}.lt-plate .lt-contours{transform-origin:300px 204px;transition:transform 1.4s var(--ease)}.lt-plate:hover .lt-contours{transform:scale(1.05)}.lt-plate__label{position:absolute;top:20px;left:22px;color:var(--plate-ink-2)}.lt-plate__foot{position:absolute;left:22px;right:22px;bottom:18px;display:flex;justify-content:space-between;gap:12px;font:11.5px var(--mono);letter-spacing:.04em;color:var(--plate-ink-2)}.lt-path{stroke-dasharray:100;animation:lt-draw 2.2s var(--ease) .2s both}.lt-node{animation:lt-fade .5s var(--ease) both}.lt-pulse{transform-box:fill-box;transform-origin:center;animation:lt-pulse 2.6s var(--ease) 2.4s infinite both}.lt-breathe{animation:lt-breathe 6s ease-in-out infinite}.lt-fs{isolation:isolate;contain:layout paint}.lt-fs>svg{overflow:hidden}.lt-fs *{transition:none}.lt-fs__dot{fill:var(--plate-dot);opacity:.38}.lt-fs__veil-stop{stop-color:var(--plate)}.lt-fs__datum{fill:none;stroke:var(--plate-ink-2);stroke-width:.8;opacity:.25}.lt-fs__skin{fill:#b8c4ca;fill-opacity:.025}.lt-fs__wire{fill:none;stroke:#b8c4ca;stroke-opacity:.6;stroke-width:1;stroke-linejoin:round}.lt-fs__wire--back{stroke-opacity:.19;stroke-dasharray:3 5}.lt-fs__slice{fill:#b8c4ca;fill-opacity:.055;stroke:#b8c4ca;stroke-opacity:.43;stroke-width:.9}.lt-fs__slice--middle{fill:var(--signal);fill-opacity:.045;stroke:var(--signal);stroke-opacity:.35}.lt-fs__grid{fill:none;stroke:#b8c4ca;stroke-opacity:.14;stroke-width:.6}.lt-fs__trace{fill:none;stroke:#b8c4ca;stroke-opacity:.38;stroke-width:1}.lt-fs__route{fill:none;stroke:var(--signal);stroke-opacity:.22;stroke-width:1}.lt-fs__core{fill:none;stroke:var(--signal);stroke-opacity:.65;stroke-width:1}.lt-fs__scan{fill:var(--signal);fill-opacity:.045;stroke:var(--signal);stroke-width:.8}.lt-fs__node{fill:var(--signal)}.lt-fs__node-halo{fill:none;stroke:var(--signal);stroke-width:.8}.lt-fs__beam,.lt-fs__glow{fill:none;stroke:var(--signal);stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:9 111}.lt-fs__beam{stroke-width:1.8}.lt-fs__glow{stroke-width:5;stroke-opacity:.12}.lt-fs__label{z-index:1}.lt-fs__caption{position:absolute;left:22px;right:80px;bottom:20px;z-index:1;margin:0;font-family:var(--serif),"Songti SC",serif;font-size:14px;line-height:1.4;letter-spacing:.04em;color:var(--plate-ink-2)}.lt-fs__toggle{position:absolute;right:12px;bottom:8px;min-width:44px;min-height:44px;padding:8px;border:0;border-radius:6px;background:rgba(0,0,0,0);color:var(--plate-ink-2);font:11px var(--sans);cursor:pointer}.lt-fs__toggle:hover{color:var(--signal)}.lt-fs__toggle:focus-visible{outline:1px solid var(--signal);outline-offset:-4px}.lt-fs__toggle[hidden]{display:none}@media(prefers-reduced-motion: reduce){.lt-fs__toggle{display:none}}@media(max-width: 760px){.lt-fs__caption{left:16px;bottom:17px;font-size:12px}.lt-fs__toggle{right:6px;bottom:4px}}.lt-code,div.highlighter-rouge,figure.highlight{margin:32px 0;border-radius:14px;background:var(--plate);border:1px solid var(--code-border);color:var(--plate-ink);overflow:hidden}figure.highlight{margin-left:0;margin-right:0}div.highlighter-rouge .highlight{margin:0;background:none}.lt-code pre,div.highlighter-rouge pre,figure.highlight pre{margin:0;padding:18px 22px 20px;overflow-x:auto;font:13.5px/1.75 var(--mono);tab-size:4;counter-reset:ln;background:none;color:inherit}.lt-code pre code,div.highlighter-rouge pre code,figure.highlight pre code{font:inherit;padding:0;border:0;background:none;color:inherit}.lt-code--ln pre{padding-left:6px}.lt-code .l::before,.lt-code--ln .l::before{counter-increment:ln;content:counter(ln);display:inline-block;width:2.4em;margin-right:1.4em;text-align:right;color:#7d858c;-webkit-user-select:none;user-select:none}.lt-code-h{display:flex;align-items:center;gap:12px;height:46px;padding:0 8px 0 18px;border-bottom:1px solid var(--plate-line);font:12.5px var(--mono);color:var(--plate-ink-2)}.lt-code-h .file{color:var(--plate-ink)}.lt-code-h .lt-copy{margin-left:auto}.lt-copy{position:relative;display:inline-flex;align-items:center;gap:7px;height:32px;padding:0 10px;border-radius:8px;color:var(--plate-ink-2);font:12px var(--mono);transition:background-color .2s var(--ease),color .2s var(--ease)}.lt-copy::after{content:"";position:absolute;inset:-6px 0}.lt-copy:hover{background:var(--plate-2);color:var(--plate-ink)}.lt-copy.is-copied{color:var(--signal)}.tk{color:var(--signal)}.tf{color:#a9c7ff}.ts{color:#9fd8c9}.tn{color:#f5b99a}.tc{color:#7d858c;font-style:italic}.tt{color:#e8d49b}.tv{color:#c7ccd1;font-style:italic}.highlight .k,.highlight .kd,.highlight .kn,.highlight .kp,.highlight .kr,.highlight .kv,.highlight .ow{color:var(--signal)}.highlight .nf,.highlight .nc,.highlight .fm,.highlight .nd,.highlight .ne{color:#a9c7ff}.highlight .s,.highlight .sa,.highlight .sb,.highlight .sc,.highlight .dl,.highlight .sd,.highlight .s2,.highlight .se,.highlight .sh,.highlight .si,.highlight .sx,.highlight .sr,.highlight .s1,.highlight .ss{color:#9fd8c9}.highlight .m,.highlight .mb,.highlight .mf,.highlight .mh,.highlight .mi,.highlight .il,.highlight .mo,.highlight .mx,.highlight .kc{color:#f5b99a}.highlight .c,.highlight .ch,.highlight .cm,.highlight .c1,.highlight .cs,.highlight .cp,.highlight .cpf{color:#7d858c;font-style:italic}.highlight .nb,.highlight .kt,.highlight .na,.highlight .nt{color:#e8d49b}.highlight .bp,.highlight .vi,.highlight .vc,.highlight .vg{color:#c7ccd1;font-style:italic}.highlight .gi{color:#9fd8c9}.highlight .gd{color:#f5b99a}.highlight .gh,.highlight .gu{color:#a9c7ff}.highlight .ge{font-style:italic}.highlight .gs{font-weight:600}.highlight .err{color:inherit;background:none}@media(max-width: 760px){.lt-code pre,div.highlighter-rouge pre,figure.highlight pre{font-size:12.5px}}.lt-prose :not(pre)>code,.lt-sec-b :not(pre)>code{font-family:var(--mono);font-size:.78em;padding:.14em .42em;border-radius:5px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink)}.lt-prose a.footnote,.lt-prose .lt-fn,.lt-sec-b a.footnote,.lt-sec-b .lt-fn{display:inline-grid;place-items:center;min-width:19px;height:19px;padding:0 5px;margin-left:2px;border-radius:5px;background:var(--signal);color:var(--on-signal);font:600 11px/1 var(--mono);font-style:normal;vertical-align:.5em;text-decoration:none}.lt-p,.lt-prose p,.lt-sec-b p{margin:0 0 24px;font-family:var(--serif);font-size:20px;line-height:1.65;color:var(--prose);text-wrap:pretty}.lt-sec-b p{margin-bottom:22px}.lt-prose>:last-child,.lt-sec-b>:last-child{margin-bottom:0}.lt-prose p.lead,.lt-sec-b p.lead{font-size:22.5px;line-height:1.6}.lt-prose .lead-in,.lt-sec-b .lead-in{font-family:var(--mono);font-size:.74em;letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}.lt-prose sub,.lt-prose sup,.lt-sec-b sub,.lt-sec-b sup{font-size:.7em}.lt-prose a:not([class]),.lt-prose .lt-link,.lt-sec-b a:not([class]),.lt-sec-b .lt-link{border-radius:2px;background:linear-gradient(var(--signal), var(--signal)) 0 100%/0% 100% no-repeat;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:.2em;text-decoration-color:var(--line-2);-webkit-box-decoration-break:clone;box-decoration-break:clone;transition:background-size .35s var(--ease),color .2s var(--ease),text-decoration-color .2s var(--ease)}.lt-prose a:not([class]):hover,.lt-prose .lt-link:hover,.lt-sec-b a:not([class]):hover,.lt-sec-b .lt-link:hover{background-size:100% 100%;color:var(--on-signal);text-decoration-color:rgba(0,0,0,0)}.lt-prose h2,.lt-sec-b h2{position:relative;margin:64px 0 20px;font-size:32px;line-height:1.15;font-weight:500;letter-spacing:-0.025em;scroll-margin-top:100px;text-wrap:balance}.lt-prose h2:hover .lt-anchor,.lt-sec-b h2:hover .lt-anchor{opacity:1}.lt-prose h3,.lt-sec-b h3{margin:44px 0 16px;font-size:23px;line-height:1.25;font-weight:500;letter-spacing:-0.018em;scroll-margin-top:100px;text-wrap:balance}.lt-prose h4,.lt-sec-b h4{margin:32px 0 12px;font-size:18px;line-height:1.35;font-weight:500;letter-spacing:-0.01em}.lt-prose ul,.lt-prose ol,.lt-sec-b ul,.lt-sec-b ol{margin:0 0 24px;padding:0;display:flex;flex-direction:column;gap:12px}.lt-prose ul,.lt-sec-b ul{list-style:none}.lt-prose ol,.lt-sec-b ol{padding-left:30px}.lt-prose li,.lt-sec-b li{position:relative;font-family:var(--serif);font-size:20px;line-height:1.6;color:var(--prose);text-wrap:pretty}.lt-prose li>p,.lt-sec-b li>p{margin-bottom:12px}.lt-prose li>ul,.lt-prose li>ol,.lt-sec-b li>ul,.lt-sec-b li>ol{margin:12px 0 0}.lt-prose ul>li,.lt-sec-b ul>li{padding-left:30px}.lt-prose ul>li::before,.lt-sec-b ul>li::before{content:"";position:absolute;left:4px;top:.66em;width:8px;height:8px;border-radius:2px;background:var(--signal);box-shadow:0 0 0 1px var(--ring)}.lt-prose ol>li::marker,.lt-sec-b ol>li::marker{font:500 .7em var(--mono);color:var(--ink-3)}.lt-prose ul ul>li::before,.lt-sec-b ul ul>li::before{background:rgba(0,0,0,0);box-shadow:inset 0 0 0 1px var(--ink-3)}.lt-prose blockquote,.lt-sec-b blockquote{margin:48px 0;padding:26px 0 0;border-top:1px solid var(--ink);font-size:34px;line-height:1.18;font-weight:450;letter-spacing:-0.024em;color:var(--ink);text-wrap:balance}.lt-prose blockquote p,.lt-sec-b blockquote p{margin:0 0 16px;font:inherit;color:inherit;letter-spacing:inherit}.lt-prose blockquote cite,.lt-prose blockquote footer,.lt-sec-b blockquote cite,.lt-sec-b blockquote footer{display:block;margin-top:16px;font:12px var(--mono);font-style:normal;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3)}.lt-prose hr,.lt-sec-b hr{margin:56px 0;border:0;border-top:1px solid var(--line)}.lt-prose img,.lt-sec-b img{display:block;border-radius:14px}.lt-prose mark,.lt-sec-b mark{background:var(--signal);color:var(--on-signal);border-radius:3px;padding:0 .1em}.lt-prose kbd,.lt-sec-b kbd{display:inline-flex;align-items:center;height:1.4em;padding:0 .4em;border:1px solid var(--line-2);border-bottom-width:2px;border-radius:6px;background:var(--paper);font:500 .6em/1 var(--mono);color:var(--ink-2);vertical-align:.15em}.lt-prose table,.lt-sec-b table{width:100%;margin:36px 0 40px;border-collapse:collapse;font-size:15px}.lt-prose th,.lt-sec-b th{padding:0 20px 12px 0;text-align:left;font:500 11.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);border-bottom:1px solid var(--ink)}.lt-prose td,.lt-sec-b td{padding:16px 20px 16px 0;border-bottom:1px solid var(--line);vertical-align:baseline;line-height:1.5;color:var(--ink-2)}.lt-prose td:first-child,.lt-sec-b td:first-child{color:var(--ink);font-weight:500;white-space:nowrap}.lt-prose sup[role=doc-noteref],.lt-prose sup[id^=fnref],.lt-sec-b sup[role=doc-noteref],.lt-sec-b sup[id^=fnref]{font-size:inherit;vertical-align:baseline;line-height:inherit}.lt-prose .footnotes,.lt-sec-b .footnotes{margin-top:56px;padding-top:20px;border-top:1px solid var(--line)}.lt-prose .footnotes ol,.lt-sec-b .footnotes ol{gap:10px}.lt-prose .footnotes li,.lt-prose .footnotes li p,.lt-sec-b .footnotes li,.lt-sec-b .footnotes li p{font-family:var(--sans);font-size:14.5px;line-height:1.55;color:var(--ink-2)}.lt-prose .footnotes li p,.lt-sec-b .footnotes li p{margin:0}.lt-prose .footnotes .reversefootnote,.lt-sec-b .footnotes .reversefootnote{margin-left:4px;background:none;text-decoration:none;color:var(--ink-3)}.js .lt-prose[data-sidenotes] .footnotes,.js .lt-sec-b[data-sidenotes] .footnotes{display:none}.lt-prose .katex-display,.lt-sec-b .katex-display{margin:30px 0;padding:8px 0;font-size:1.15em;overflow-x:auto;overflow-y:hidden}.lt-prose .katex,.lt-sec-b .katex{font-size:1.08em}.lt-prose--numbered{counter-reset:lt-h2}.lt-prose--numbered h2{padding-left:32px;text-indent:-32px}.lt-prose--numbered h2::before{counter-increment:lt-h2;content:counter(lt-h2, decimal-leading-zero);display:inline-block;width:32px;text-indent:0;font:500 13px var(--mono);letter-spacing:.04em;color:var(--ink-3);transform:translateY(-0.45em)}.lt-anchor{margin-left:16px;opacity:0;font:400 22px var(--mono);color:var(--ink-3);background:none !important;text-decoration:none !important;transition:opacity .2s var(--ease),color .2s var(--ease)}.lt-anchor:hover{color:var(--ink) !important}.lt-anchor:focus-visible{opacity:1}.lt-lead{font-family:var(--mono);font-size:.74em;letter-spacing:.06em;text-transform:uppercase;color:var(--ink)}.lt-sn{position:relative}.lt-side{position:absolute;top:4px;right:-300px;width:252px;margin:0;font-family:var(--sans);font-size:13.5px;line-height:1.55;color:var(--ink-2)}.lt-side .lt-fn{margin:0 8px 0 0;vertical-align:1px}.lt-side.lt-side p{display:inline;margin:0;font:inherit;color:inherit}.lt-side a:not([class]){background:none}.lt-callout{margin:8px 0 32px;padding:22px 24px;border-radius:14px;background:var(--surface);border:1px solid var(--line)}.lt-callout .lt-label{display:flex;align-items:center;gap:10px;color:var(--ink)}.lt-callout .lt-callout__body{margin-top:10px}.lt-callout .lt-callout__body p,.lt-callout .lt-callout__body li{margin:0 0 10px;font-family:var(--sans);font-size:17px;line-height:1.6;color:var(--ink)}.lt-callout .lt-callout__body>:last-child{margin-bottom:0}.lt-fig{margin:36px 0 40px}.lt-fig img{width:100%}.lt-cap{display:flex;gap:14px;margin-top:14px;font-family:var(--sans);font-size:13.5px;line-height:1.55;color:var(--ink-3)}.lt-cap b{flex:none;padding-top:1px;font:500 11.5px var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink)}.lt-plate-fig{border-radius:16px;background:var(--plate);border:1px solid var(--plate-border);color:var(--plate-ink);overflow-x:auto}.lt-table-wrap{margin:36px 0 40px;overflow-x:auto}.lt-table-wrap table{min-width:620px;margin:0}.lt-table-wrap+.lt-cap{margin-top:-26px;margin-bottom:40px}.lt-meter{display:inline-flex;gap:3px;margin-right:10px;vertical-align:-1px}.lt-meter i{width:4px;height:12px;border-radius:1px;background:var(--line-2)}.lt-meter i.on{background:var(--ink)}.lt-eq{margin:30px 0;padding:8px 0;display:flex;flex-direction:column;gap:14px;font-family:var(--serif);font-size:24px;line-height:1.35;color:var(--ink)}.lt-eq>div{position:relative;text-align:center}.lt-eq sub,.lt-eq sup{font-size:.6em}.lt-eqn{position:absolute;right:0;top:50%;transform:translateY(-50%);font:13px var(--mono);color:var(--ink-3)}@media(max-width: 760px){.lt-prose p,.lt-prose li,.lt-sec-b p,.lt-sec-b li{font-size:18.5px}.lt-prose p.lead,.lt-sec-b p.lead{font-size:20px}.lt-prose blockquote,.lt-sec-b blockquote{font-size:27px}}.lt-footer{border-top:1px solid var(--line)}.lt-footer__inner{padding-top:72px;padding-bottom:32px;display:flex;flex-direction:column;gap:56px}.lt-footer__top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:48px 64px}.lt-footer__about{flex:1 1 300px;max-width:360px;display:flex;flex-direction:column;align-items:flex-start;gap:16px}.lt-footer__about p{margin:0;font-size:15px;line-height:1.6;color:var(--ink-2)}.lt-footer__cols{display:flex;flex-wrap:wrap;gap:40px 72px}.lt-fcol{display:flex;flex-direction:column;align-items:flex-start;gap:12px}.lt-fcol>.lt-label{margin-bottom:4px}.lt-fcol .hint{font-size:13px;color:var(--ink-3)}.lt-flink{color:var(--ink-2);font-size:14.5px;transition:color .2s var(--ease)}.lt-flink:hover{color:var(--ink)}.lt-wordmark{margin:8px 0 -6px -0.04em;font-size:clamp(96px,20vw,288px);line-height:.8;font-weight:600;letter-spacing:-0.065em;color:rgba(0,0,0,0);background:radial-gradient(circle, var(--ink-3) 1.5px, transparent 2px) 0 0/8px 8px;-webkit-background-clip:text;background-clip:text;-webkit-user-select:none;user-select:none;white-space:nowrap;overflow:hidden}.lt-footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding-top:24px;border-top:1px solid var(--line);font:12.5px var(--mono);color:var(--ink-3)}.lt-footer--slim .lt-footer__bottom{padding-top:24px;padding-bottom:24px;border-top:0}.lt-menu{position:fixed;inset:0;z-index:60;display:flex;flex-direction:column;overflow-y:auto;background:var(--paper);color:var(--ink);animation:lt-fade .25s var(--ease) both}.lt-menu__bar{flex:none;height:56px;padding-right:8px;display:flex;align-items:center}.lt-menu__bar .lt-brand{gap:9px;font-size:16px}.lt-menu__bar .lt-icon{margin-left:auto;border:1px solid var(--line-2)}.lt-menu__body{flex:1;padding-top:16px;display:flex;flex-direction:column}.lt-menu__search{height:48px;padding:0 16px;display:flex;align-items:center;gap:10px;border:1px solid var(--line-2);border-radius:999px;background:var(--surface);font-size:15px;color:var(--ink-3);text-align:left}.lt-mnav{margin-top:22px;border-top:1px solid var(--line)}.lt-mnav a{display:flex;align-items:center;justify-content:space-between;height:62px;border-bottom:1px solid var(--line);font-size:28px;font-weight:500;letter-spacing:-0.03em;color:var(--ink)}.lt-mnav a>span{display:flex;align-items:center;gap:12px}.lt-mnav a svg{color:var(--ink-3);transition:transform .3s var(--ease),color .2s var(--ease)}.lt-mnav a:hover svg{transform:translateX(4px);color:var(--ink)}.lt-mnav a .lt-sq{display:none;width:8px;height:8px}.lt-mnav a[aria-current=page] .lt-sq{display:inline-block}.lt-menu__foot{margin-top:auto;padding-top:40px;padding-bottom:40px;display:flex;flex-direction:column;gap:14px}.lt-menu__foot .lt-segs{display:flex}.lt-menu__foot .lt-seg{flex:1;height:36px;font-size:13.5px}.lt-menu__foot .row{display:flex;justify-content:space-between;font:11.5px var(--mono);color:var(--ink-3)}.lt-palette{position:fixed;inset:0;z-index:70}.lt-palette__scrim{position:absolute;inset:0;background:var(--scrim);-webkit-backdrop-filter:blur(6px) saturate(1.2);backdrop-filter:blur(6px) saturate(1.2)}.lt-palette__panel{position:absolute;left:50%;top:100px;width:700px;max-width:calc(100vw - 32px);max-height:calc(100vh - 124px);max-height:calc(100dvh - 124px);transform:translateX(-50%);display:flex;flex-direction:column;border-radius:20px;border:1px solid var(--line-2);background:var(--surface);box-shadow:var(--shadow);overflow:hidden;animation:lt-pop .4s var(--ease) both}.lt-palette__bar{height:66px;flex:none;padding:0 16px 0 22px;display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--line)}.lt-palette__bar>svg{flex:none;color:var(--ink-2)}.lt-palette__bar input{flex:1;min-width:0;height:100%;border:0;outline:none;background:rgba(0,0,0,0);font-size:19px;letter-spacing:-0.01em;caret-color:var(--signal)}.lt-palette__bar input::placeholder{color:var(--ink-3)}.lt-palette__bar input::-webkit-search-cancel-button{display:none}.lt-palette__bar .lt-kbd{height:26px;padding:0 8px}.lt-palette__scopes{flex:none;padding:12px 16px;display:flex;flex-wrap:wrap;align-items:center;gap:6px;border-bottom:1px solid var(--line)}.lt-palette__scopes .count{margin-left:auto;font:12px var(--mono);color:var(--ink-3)}.lt-scope{position:relative;display:inline-flex;align-items:center;height:30px;padding:0 12px;border-radius:999px;border:1px solid var(--line);font-size:13px;color:var(--ink-2);transition:background-color .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease)}.lt-scope::after{content:"";position:absolute;inset:-7px -2px}.lt-scope:hover{border-color:var(--line-2);color:var(--ink)}.lt-scope.on{background:var(--ink);border-color:var(--ink);color:var(--paper)}.lt-palette__results{height:520px;max-height:calc(100vh - 340px);min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:6px 8px 10px}.lt-palette__results .lt-label{padding:14px 14px 6px}.lt-palette__results mark{background:var(--signal);color:var(--on-signal);border-radius:3px;padding:0}.lt-res{position:relative;display:flex;align-items:flex-start;gap:14px;padding:12px 14px;border-radius:12px;transition:background-color .15s var(--ease)}.lt-res.is-compact{align-items:center}.lt-res .lt-ret{align-self:center;opacity:0;transform:translateX(-4px);transition:opacity .2s var(--ease),transform .2s var(--ease)}.lt-res.on{background:var(--surface-2)}.lt-res.on .lt-ret{opacity:1;transform:none}.lt-res.on .lt-ico{border-color:var(--line-2);color:var(--ink)}.lt-res__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}.lt-res__title{font-size:15.5px;line-height:1.35;font-weight:500;letter-spacing:-0.008em}.lt-res__snippet{font-family:var(--serif);font-size:15px;line-height:1.45;color:var(--ink-2);display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:3;white-space:normal;overflow-wrap:anywhere;overflow:hidden}.lt-res__meta{margin-top:2px;font-size:11px}.lt-res__sub{font-size:13px;color:var(--ink-3)}.lt-res__tag{flex:1;min-width:0;font:14px var(--mono);color:var(--ink)}.lt-res__count{font:12px var(--mono);color:var(--ink-3)}.lt-ico{flex:none;display:grid;place-items:center;width:34px;height:34px;border-radius:9px;border:1px solid var(--line);background:var(--paper);color:var(--ink-3);font:500 15px var(--mono)}.lt-palette__empty{padding:72px 24px;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}.lt-palette__empty strong{font-size:17px;font-weight:500}.lt-palette__empty span{font-size:14px;color:var(--ink-3)}.lt-palette__foot{flex:none;height:50px;padding:0 18px;display:flex;align-items:center;gap:18px;border-top:1px solid var(--line);background:var(--paper);font-size:12.5px;color:var(--ink-3)}.lt-palette__foot>span{display:flex;align-items:center;gap:6px}.lt-palette__foot .lt-kbd{min-width:24px;height:24px;color:var(--ink-2)}.lt-palette__foot .note{margin-left:auto;font:11.5px var(--mono);letter-spacing:.04em}@media(max-width: 760px){.lt-palette__panel{top:12px;max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px)}.lt-palette__results{max-height:calc(100vh - 240px)}.lt-palette__foot>span:not(.note){display:none}.lt-palette__foot .note{margin-left:0}}.lt-palette__scopes,.lt-palette__foot{flex-shrink:0}@media(max-height: 600px){.lt-palette__panel{top:12px;max-height:calc(100vh - 24px);max-height:calc(100dvh - 24px)}.lt-palette__results{max-height:none}}.lt-hero{padding-top:88px;padding-bottom:88px;display:flex;flex-wrap:wrap;align-items:center;gap:56px 64px}.lt-hero .lt-plate{flex:0 1 480px;min-width:0}.lt-hero__text{flex:1 1 560px;min-width:0;display:flex;flex-direction:column;align-items:flex-start}.lt-hero__title{margin:30px 0 0;max-width:11.5em;font-size:clamp(46px,5.8vw,84px);line-height:.98;font-weight:500;letter-spacing:-0.045em;text-wrap:balance}.lt-hero__lead{margin:30px 0 0;max-width:31em;font-family:var(--serif);font-size:22px;line-height:1.5;color:var(--ink-2);text-wrap:pretty}.lt-hero__lead em{color:var(--ink)}.lt-actions{display:flex;flex-wrap:wrap;gap:12px}.lt-hero__actions{margin-top:38px}.lt-topics{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.lt-topics .lt-wrap{padding-top:14px;padding-bottom:14px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}.lt-topics .lt-more{margin-left:auto}.lt-featured{padding-top:88px;padding-bottom:40px}.lt-featured__card{flex-direction:row;flex-wrap:wrap;align-items:center;gap:40px 64px}.lt-featured__card .lt-frame{flex:1 1 560px;min-width:0;border-radius:16px}.lt-featured__body{flex:1 1 360px;max-width:480px;display:flex;flex-direction:column;gap:18px}.lt-featured__body .lt-more{margin-top:6px}.lt-featured__title{margin:0;font-size:44px;line-height:1.04;font-weight:500;letter-spacing:-0.035em;text-wrap:balance}.lt-featured__dek{margin:0;font-family:var(--serif);font-size:21px;line-height:1.5;color:var(--ink-2);text-wrap:pretty}.lt-byline{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--ink-2)}.lt-byline .sep,.lt-byline .read{color:var(--ink-3)}.lt-latest{padding-top:72px;padding-bottom:96px}.lt-grid{display:grid;grid-template-columns:repeat(auto-fill, minmax(min(320px, 100%), 1fr));gap:32px}.lt-pager{margin-top:72px;display:flex;align-items:center;justify-content:center;gap:16px}.lt-pager .page{font:12.5px var(--mono);color:var(--ink-3)}.lt-home-content{padding-bottom:72px}.lt-home-content .lt-prose{max-width:760px}.lt-notes{border-top:1px solid var(--line)}.lt-notes>.lt-wrap{padding-top:96px;padding-bottom:96px;display:flex;flex-wrap:wrap;gap:40px 64px}.lt-notes__intro{flex:1 1 280px;max-width:360px;align-self:flex-start;position:sticky;top:104px;display:flex;flex-direction:column;align-items:flex-start;gap:16px}.lt-notes__intro p{margin:0;font-size:16px;line-height:1.6;color:var(--ink-2)}.lt-notes__intro .lt-more{margin-top:4px}.lt-notes__list{flex:999 1 560px;min-width:0;border-bottom:1px solid var(--line)}.lt-notes__list>div{border-top:1px solid var(--line)}.lt-note-row{display:grid;grid-template-columns:110px minmax(0, 1fr) 24px;gap:24px;align-items:baseline;padding:22px 16px;margin:0 -16px}.lt-note-row time{font:12.5px var(--mono);color:var(--ink-3)}.lt-note-row .t{font-family:var(--serif);font-size:20px;line-height:1.45;color:var(--ink);text-wrap:pretty}.lt-subscribe{padding-top:24px;padding-bottom:104px}.lt-subscribe__box{position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line);background:var(--surface);padding:clamp(28px,5vw,64px);display:flex;flex-wrap:wrap;align-items:flex-end;gap:32px 64px}.lt-subdots{position:absolute;top:0;right:0;bottom:0;width:48%;background:radial-gradient(circle, var(--ink-3) 1px, transparent 1.6px) 0 0/14px 14px;-webkit-mask-image:linear-gradient(90deg, transparent, #000 75%);mask-image:linear-gradient(90deg, transparent, #000 75%);opacity:.3;pointer-events:none}.lt-subscribe__text{position:relative;flex:1 1 420px;display:flex;flex-direction:column;gap:14px}.lt-subscribe__text h2{margin:0;font-size:clamp(30px,3.2vw,42px);line-height:1.08;font-weight:500;letter-spacing:-0.03em;text-wrap:balance}.lt-subscribe__text p{margin:0;max-width:44ch;font-size:16.5px;line-height:1.6;color:var(--ink-2)}.lt-subscribe__form{position:relative;flex:1 1 380px;max-width:500px;display:flex;flex-wrap:wrap;gap:10px}@media(max-width: 760px){.lt-hero{padding-top:32px;padding-bottom:36px;gap:28px}.lt-hero .lt-plate{flex:1 1 100%;border-radius:16px}.lt-hero .lt-plate__label{top:14px;left:16px;font-size:10px}.lt-hero__title{margin-top:18px;font-size:44px}.lt-hero__lead{margin-top:18px;font-size:18px}.lt-hero__actions{margin-top:18px;width:100%;flex-wrap:nowrap;gap:10px}.lt-hero__actions .lt-btn{height:48px;padding:0 20px}.lt-hero__actions .lt-btn:first-child{flex:1}.lt-featured{padding-top:36px}.lt-featured__card .lt-frame{flex-basis:100%;aspect-ratio:auto;height:210px;border-radius:14px}.lt-featured__title{font-size:26px;line-height:1.08;letter-spacing:-0.03em}.lt-featured__dek{font-size:18px}.lt-note-row{grid-template-columns:minmax(0, 1fr);gap:6px}.lt-notes>.lt-wrap{padding-top:64px;padding-bottom:64px}.lt-notes__intro{position:static}}.lt-indent{padding-left:264px}.lt-article-head{padding-top:72px;padding-bottom:48px}.lt-blink{color:var(--ink-3);transition:color .2s var(--ease)}.lt-blink:hover{color:var(--ink)}.lt-post-title{margin:24px 0 0;max-width:15ch;font-size:clamp(40px,5vw,68px);line-height:1.02;font-weight:500;letter-spacing:-0.04em;text-wrap:balance}.lt-post-dek{margin:24px 0 0;max-width:32em;font-family:var(--serif);font-size:24px;line-height:1.45;color:var(--ink-2);text-wrap:pretty}.lt-post-byline{max-width:980px;margin-top:36px;padding-top:20px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;align-items:center;gap:16px 28px}.lt-post-byline .who{display:flex;align-items:center;gap:12px}.lt-post-byline .lt-av{width:32px;height:32px}.lt-post-byline .lt-av+.lt-av{margin-left:-8px}.lt-post-byline .names{font-size:14.5px;color:var(--ink-2)}.lt-post-byline .names a,.lt-post-byline .names strong{color:var(--ink);font-weight:inherit}.lt-post-byline .tools{margin-left:auto;display:flex;gap:8px}.lt-post-cover{margin-top:0;margin-bottom:64px}.lt-post-cover .lt-frame{height:320px;aspect-ratio:auto;border-radius:18px}.lt-post-cover .lt-st{left:7%;right:7%}.lt-post-cover .lt-frame__caption{left:22px;right:22px;bottom:18px}.lt-post-body{display:flex;align-items:flex-start;gap:64px}.lt-rail{flex:0 0 200px;position:sticky;top:104px;display:flex;flex-direction:column;gap:32px}.lt-toc{list-style:none;margin:14px 0 0;padding:0;border-left:1px solid var(--line);display:flex;flex-direction:column}.lt-toc-a{position:relative;display:flex;gap:12px;padding:7px 0 7px 16px;font-size:13.5px;line-height:1.4;color:var(--ink-3);transition:color .2s var(--ease)}.lt-toc-a::before{content:"";position:absolute;left:-1px;top:6px;bottom:6px;width:2px;border-radius:2px;background:rgba(0,0,0,0);transition:background-color .25s var(--ease)}.lt-toc-a:hover,.lt-toc-a.on{color:var(--ink)}.lt-toc-a.on::before{background:var(--ink)}.lt-toc-a .n{flex:none;padding-top:1px;font:11.5px var(--mono);color:var(--ink-3)}.lt-rail__progress{display:flex;flex-direction:column;gap:10px}.lt-rail__progress .track{height:2px;border-radius:2px;background:var(--line);overflow:hidden}.lt-rail__progress .bar{height:100%;width:0;background:var(--progress)}.lt-rail__progress .txt{font:12px var(--mono);color:var(--ink-3)}.lt-rail__share{display:flex;flex-direction:column;align-items:flex-start;gap:6px}.lt-rail__share>.lt-label{margin-bottom:4px}.lt-rail__share .lt-more{font-size:13.5px;color:var(--ink-2)}.lt-article-col{flex:1 1 auto;min-width:0;max-width:980px;padding-right:300px}.lt-wide,.lt-prose blockquote,.lt-prose .wide,.lt-prose .lt-table-wrap{margin-right:-300px}.lt-post-foot{margin-top:56px;display:flex;flex-direction:column;gap:36px}.lt-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px 12px}.lt-tags>.lt-label{margin-right:6px}.lt-tags .lt-chip .hash{color:var(--ink-3);opacity:1}.lt-cite{scroll-margin-top:100px;border:1px solid var(--line);border-radius:14px;background:var(--surface);overflow:hidden}.lt-cite .head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 10px 10px 20px;border-bottom:1px solid var(--line)}.lt-cite .head h2{margin:0;color:var(--ink)}.lt-cite p{margin:0;padding:18px 20px 0;font-size:14.5px;line-height:1.55;color:var(--ink-2)}.lt-cite pre{margin:0;padding:12px 20px 20px;overflow-x:auto;font:12.5px/1.7 var(--mono);color:var(--ink-2)}.lt-authors{display:grid;grid-template-columns:repeat(auto-fit, minmax(min(260px, 100%), 1fr));gap:14px}.lt-author{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid var(--line);border-radius:14px;transition:border-color .2s var(--ease),background-color .2s var(--ease)}.lt-author .lt-av{width:44px;height:44px;font-size:12px}.lt-author .txt{display:flex;flex-direction:column;gap:2px;min-width:0}.lt-author .name{font-size:15.5px;font-weight:500}.lt-author .role{font-size:13.5px;color:var(--ink-3)}.lt-author .lt-row-arrow{margin-left:auto}a.lt-author:hover{border-color:var(--line-2);background:var(--surface)}a.lt-author:hover .lt-row-arrow{opacity:1;transform:none}.lt-pn-nav{display:grid;grid-template-columns:repeat(auto-fit, minmax(min(260px, 100%), 1fr));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.lt-pn{display:flex;flex-direction:column;gap:8px;padding:22px 20px 22px 0;transition:background-color .2s var(--ease)}.lt-pn:hover .lt-ct{background-size:100% 1.5px}.lt-pn .t{font-size:18px;line-height:1.35;font-weight:500;letter-spacing:-0.012em}.lt-pn--next{padding:22px 0 22px 20px;align-items:flex-end;text-align:right;border-left:1px solid var(--line)}.lt-pn--next:only-child{grid-column:1/-1;border-left:0}.lt-related{margin-top:96px;border-top:1px solid var(--line)}.lt-related>.lt-wrap{padding-top:72px;padding-bottom:96px}.lt-related .lt-heading-row{margin-bottom:36px}.lt-related h2{margin:0;font-size:28px;line-height:1.1;font-weight:500;letter-spacing:-0.022em}.lt-related__grid{display:grid;grid-template-columns:repeat(auto-fit, minmax(min(340px, 100%), 1fr));gap:24px 40px}.lt-related__grid .lt-card{gap:18px}.lt-related__grid .lt-frame{flex:none;width:132px;height:88px;aspect-ratio:auto;border-radius:10px}.lt-related__grid .lt-card__body{min-width:0;gap:8px}.lt-related__grid h3{margin:0;font-size:17px;line-height:1.3;font-weight:500;letter-spacing:-0.012em;text-wrap:balance}.lt-fig-diagram{padding:32px 40px 24px}.lt-fig-row{position:relative;min-width:780px;height:172px;display:flex;justify-content:space-between;align-items:flex-start}.lt-fig-col{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center}.lt-fig-col:hover .lt-fig-blk{border-color:var(--signal);transform:translateY(-2px)}.lt-fig-blk{display:grid;place-items:center;width:96px;height:52px;border-radius:10px;background:var(--plate-2);border:1px solid var(--plate-str);font:500 12px var(--mono);color:var(--plate-ink);transition:border-color .25s var(--ease),transform .25s var(--ease)}.lt-fig-wire{position:relative;width:96px;height:58px}.lt-fig-wire::before{content:"";position:absolute;left:20px;top:0;height:67px;border-left:1px dashed var(--plate-ink-2)}.lt-fig-wire::after{content:"";position:absolute;left:47.5px;top:0;width:1px;height:58px;background:var(--plate-ink)}.lt-fig-add{display:grid;place-items:center;width:20px;height:20px;border-radius:50%;background:var(--plate);border:1.5px solid var(--signal);font:600 13px/1 var(--mono);color:var(--signal)}.lt-fig-io{position:relative;z-index:1;display:grid;place-items:center;height:44px;margin-top:98px;padding:0 16px;border-radius:999px;background:var(--plate);border:1px solid var(--plate-str);font:12px var(--mono);color:var(--plate-ink-2)}.lt-fig-mono{font:11.5px var(--mono);color:var(--plate-ink-2)}.lt-fig-legend{margin-top:14px;padding-top:14px;border-top:1px solid var(--plate-line);display:flex;flex-wrap:wrap;gap:8px 28px;font:11.5px var(--mono);color:var(--plate-ink-2)}.lt-fig-legend>span{display:flex;align-items:center;gap:8px}.lt-fig-bars{padding:20px 24px 16px;border-radius:14px}.lt-fig-bars .head{display:flex;justify-content:space-between;gap:12px;font:11.5px var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--plate-ink-2)}.lt-fig-bars .head .on{color:var(--signal)}.lt-fig-bars .bars{height:92px;margin-top:16px;display:flex;align-items:flex-end;gap:4px;border-bottom:1px solid var(--plate-str)}.lt-fig-bars .axis{margin-top:8px;display:flex;justify-content:space-between;font:11px var(--mono);color:var(--plate-ink-2)}.lt-bar{flex:1 1 0;min-width:0;height:3px;border-radius:2px 2px 0 0;background:var(--plate-line)}.lt-bar.on{background:var(--signal);transform-origin:bottom;animation:lt-grow 1s var(--ease) .2s both}@media(max-width: 1180px){.lt-indent{padding-left:0}.lt-article-col{padding-right:0}.lt-side{position:static;width:auto;margin:-8px 0 24px;padding:14px 16px;border-radius:12px;background:var(--surface-2)}.lt-wide,.lt-prose blockquote,.lt-prose .wide,.lt-prose .lt-table-wrap{margin-right:0}}@media(max-width: 760px){.lt-article-head{padding-top:28px;padding-bottom:28px}.lt-post-title{margin-top:16px;font-size:36px}.lt-post-dek{margin-top:14px;font-size:18px}.lt-post-byline{margin-top:18px;padding-top:14px;gap:14px 20px}.lt-post-byline .tools{margin-left:0}.lt-post-cover{margin-bottom:36px}.lt-post-cover .lt-frame{height:220px;border-radius:14px}.lt-post-cover .lt-st,.lt-post-cover .lt-frame__caption{display:none}.lt-pn--next{border-left:0;border-top:1px solid var(--line);padding-left:0}.lt-related{margin-top:64px}}.lt-page{padding-bottom:48px}.lt-page-head{padding-top:96px;padding-bottom:64px;display:flex;flex-wrap:wrap;gap:16px 48px}.lt-page-head .spacer{flex:0 0 228px}.lt-page-head .txt{flex:999 1 560px;min-width:0;max-width:900px;display:flex;flex-direction:column;align-items:flex-start;gap:24px}.lt-page-head .lt-page-title{max-width:14em}.lt-page-head .dek{margin:4px 0 0;max-width:31em;font-family:var(--serif);font-size:26px;line-height:1.45;color:var(--ink-2);text-wrap:pretty}.lt-sec{display:flex;flex-wrap:wrap;gap:16px 48px;padding:56px 0;border-top:1px solid var(--line)}.lt-sec-h{flex:0 0 228px;display:flex;flex-direction:column;gap:8px}.lt-sec-h h2{margin:0;font-size:22px;line-height:1.25;font-weight:500;letter-spacing:-0.015em;scroll-margin-top:100px}.lt-sec-b{flex:999 1 560px;min-width:0;max-width:760px}.lt-sec-b .lt-code,.lt-sec-b div.highlighter-rouge,.lt-sec-b figure.highlight{margin:8px 0 22px}.lt-features{display:grid;grid-template-columns:repeat(auto-fit, minmax(min(200px, 100%), 1fr));gap:28px 32px}.lt-features>div{display:flex;flex-direction:column;gap:10px}.lt-features .lt-sq{width:10px;height:10px;border-radius:3px}.lt-features h3{margin:4px 0 0;font-size:17px;font-weight:500;letter-spacing:-0.01em}.lt-features p{margin:0;font-family:var(--sans);font-size:15px;line-height:1.6;color:var(--ink-2)}.lt-list{border-top:1px solid var(--ink)}.lt-list>div{border-bottom:1px solid var(--line)}.lt-list-row{display:grid;grid-template-columns:220px minmax(0, 1fr) 20px;gap:24px;align-items:baseline;padding:18px 16px;margin:0 -16px;font-size:15.5px;line-height:1.55;color:var(--ink-2)}.lt-list-row .lt-ct{color:var(--ink)}.lt-code-chip{font-family:var(--mono);font-size:12.5px;padding:.14em .42em;border-radius:5px;background:var(--surface-2);border:1px solid var(--line);color:var(--ink)}.lt-specs{display:flex;flex-wrap:wrap;gap:14px}.lt-spec{flex:1 1 200px;min-width:0;padding:20px;border:1px solid var(--line);border-radius:14px;background:var(--surface);display:flex;flex-direction:column;gap:10px;transition:border-color .2s var(--ease),transform .3s var(--ease)}.lt-spec:hover{border-color:var(--line-2);transform:translateY(-2px)}@media(max-width: 760px){.lt-page-head{padding-top:48px;padding-bottom:40px}.lt-page-head .dek{font-size:20px}.lt-list-row{grid-template-columns:minmax(0, 1fr);gap:6px}}.lt-intro{padding-top:80px;padding-bottom:44px;display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:24px 48px}.lt-intro__text{max-width:780px;display:flex;flex-direction:column;align-items:flex-start;gap:20px}.lt-page-title{margin:0;font-size:clamp(40px,5vw,68px);line-height:1.02;font-weight:500;letter-spacing:-0.04em;text-wrap:balance}.lt-intro__dek{margin:0;max-width:34em;font-family:var(--serif);font-size:21px;line-height:1.5;color:var(--ink-2);text-wrap:pretty}.lt-filterbar{position:sticky;top:var(--header-h);z-index:20;background:var(--header);-webkit-backdrop-filter:saturate(1.6) blur(14px);backdrop-filter:saturate(1.6) blur(14px);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.lt-filterbar>.lt-wrap{padding-top:12px;padding-bottom:12px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px}.lt-filterbar .tabs{display:flex;flex-wrap:wrap;gap:4px}.lt-filterbar .lt-field{margin-left:auto;flex:0 1 320px;min-width:220px}.lt-filterbar .lt-field .lt-input{height:44px}.lt-years{padding-top:20px;padding-bottom:96px}.lt-years__summary{padding:8px 0 28px;font:12.5px var(--mono);color:var(--ink-3)}.lt-year{display:flex;flex-wrap:wrap;gap:0 48px;border-top:1px solid var(--ink);margin-bottom:48px;animation:lt-enter .45s var(--ease) both}.lt-year__head{flex:0 0 180px;align-self:flex-start;position:sticky;top:calc(var(--header-h) + 84px);padding-top:20px}.lt-year__head .y{font-size:44px;line-height:1;font-weight:500;letter-spacing:-0.04em;font-variant-numeric:tabular-nums}.lt-year__head .c{margin-top:10px;font:12px var(--mono);color:var(--ink-3)}.lt-year__list{flex:999 1 600px;min-width:0}.lt-year__list>div{border-bottom:1px solid var(--line)}.lt-entry{display:grid;grid-template-columns:76px minmax(0, 1fr) 140px 72px 20px;gap:24px;align-items:baseline;padding:20px 16px;margin:0 -16px}.lt-entry time{font:12.5px var(--mono);color:var(--ink-3)}.lt-entry .main{display:flex;flex-direction:column;gap:4px;min-width:0}.lt-entry .t{font-size:19px;line-height:1.35;font-weight:500;letter-spacing:-0.012em;text-wrap:balance}.lt-entry .x{font-size:15px;line-height:1.5;color:var(--ink-2)}.lt-entry .read{font:12px var(--mono);color:var(--ink-3);text-align:right}.lt-empty{padding:72px 24px;border:1px dashed var(--line-2);border-radius:16px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}.lt-empty strong{font-size:22px;font-weight:500;letter-spacing:-0.015em}.lt-empty span{font-size:15px;color:var(--ink-2)}.lt-tagcloud{border-top:1px solid var(--line)}.lt-tagcloud>.lt-wrap{padding-top:80px;padding-bottom:96px;display:flex;flex-wrap:wrap;gap:24px 48px}.lt-tagcloud .head{flex:0 0 228px;display:flex;flex-direction:column;gap:12px}.lt-tagcloud .head h2{margin:0;font-size:28px;line-height:1.1;font-weight:500;letter-spacing:-0.022em}.lt-tagcloud .lt-chips{flex:999 1 600px;min-width:0;align-content:flex-start;gap:10px}@media(max-width: 760px){.lt-intro{padding-top:48px}.lt-entry{grid-template-columns:minmax(0, 1fr);gap:6px}.lt-year__head{position:static;flex-basis:100%;padding-bottom:8px}.lt-filterbar .lt-field{margin-left:0;flex:1 1 100%}}.lt-404{flex:1 0 auto;padding-top:88px;padding-bottom:96px;display:flex;flex-wrap:wrap;align-items:flex-start;gap:56px 72px}.lt-404__text{flex:1 1 520px;min-width:0;display:flex;flex-direction:column;align-items:flex-start}.lt-404__text h1{margin:28px 0 0;max-width:13em;font-size:clamp(34px,3.6vw,50px);line-height:1.06;font-weight:500;letter-spacing:-0.035em;text-wrap:balance}.lt-404__text>p{margin:20px 0 0;max-width:30em;font-family:var(--serif);font-size:21px;line-height:1.5;color:var(--ink-2);text-wrap:pretty}.lt-404__text .lt-actions{margin-top:20px}.lt-404__side{flex:0 1 440px;min-width:0;display:flex;flex-direction:column;gap:28px}.lt-404__side>div>.lt-label{margin-bottom:8px}.lt-big{position:relative;display:inline-block;margin-top:28px;font-size:clamp(110px,13vw,176px);line-height:.82;font-weight:600;letter-spacing:-0.07em;color:rgba(0,0,0,0);background:radial-gradient(circle, var(--ink) 1.7px, transparent 2.2px) 0 0/7px 7px;-webkit-background-clip:text;background-clip:text;-webkit-user-select:none;user-select:none}.lt-stray{position:absolute;top:-6px;right:-22px;width:16px;height:16px;border-radius:50%;background:var(--signal);box-shadow:0 0 0 1px var(--ring);animation:lt-drift 5s ease-in-out infinite}.lt-findbox{margin-top:32px;width:100%;max-width:520px;height:56px;padding:0 10px 0 20px;display:flex;align-items:center;gap:12px;border:1px solid var(--line-2);border-radius:999px;background:var(--surface);color:var(--ink-3);font-size:16px;text-align:left}.lt-findbox span{flex:1}.lt-findbox:hover{border-color:var(--ink-3)}.lt-wechat__wrap{max-width:1192px;padding-top:32px;padding-bottom:72px}.lt-wechat__topline{display:flex;align-items:center;justify-content:space-between;gap:20px}.lt-wechat__back{display:inline-flex;align-items:center;gap:9px;min-height:44px;color:var(--ink-2);font-size:13px}.lt-wechat__back:hover{color:var(--ink)}.lt-wechat__index{font:10px var(--mono);letter-spacing:.12em;color:var(--ink-3)}.lt-wechat__grid{display:grid;grid-template-columns:minmax(0, 1fr) minmax(0, 420px);grid-template-areas:"intro scan" "guide scan";align-items:start;gap:36px clamp(48px,7vw,100px);padding-top:48px}.lt-wechat__intro{grid-area:intro;align-self:end}.lt-wechat__eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 28px;font-size:12px;letter-spacing:.12em}.lt-wechat__english{margin-left:6px;color:var(--ink-3);font:10px var(--mono);letter-spacing:.16em}.lt-wechat h1{margin:0;font-family:var(--serif);font-size:clamp(44px,4.8vw,64px);font-weight:500;line-height:1.35;letter-spacing:-0.035em}.lt-wechat__accent{position:relative;display:inline-block;isolation:isolate}.lt-wechat__accent::after{content:"";position:absolute;z-index:-1;left:-0.04em;right:-0.04em;bottom:.12em;height:.16em;background:var(--signal)}.lt-wechat__dek{margin:24px 0 28px;color:var(--ink-2);font-size:15px;line-height:1.95}.lt-wechat__author{display:flex;align-items:center;gap:12px}.lt-wechat__author img{flex:none;border-radius:50%;object-fit:cover}.lt-wechat__author strong,.lt-wechat__author span{display:block}.lt-wechat__author strong{font-size:14px;font-weight:600;line-height:1.5}.lt-wechat__author span{margin-top:4px;font-size:11px;letter-spacing:.04em;color:var(--ink-3)}.lt-wechat__guide{grid-area:guide;margin:0;padding-top:24px;border-top:1px solid var(--line);display:grid;gap:20px}.lt-wechat__guide dt{display:flex;align-items:center;gap:12px;font-size:13px;font-weight:500}.lt-wechat__guide dt span{color:var(--ink-3);font:10px var(--mono)}.lt-wechat__guide dd{margin:7px 0 0 25px;max-width:320px;color:var(--ink-3);font-size:12px;line-height:1.85}.lt-wechat__scan{grid-area:scan;align-self:center;display:flex;flex-direction:column;align-items:center;gap:22px;min-width:0}.lt-wechat__card{width:100%;margin:0;padding:24px 28px 22px;border:1px solid #e1e4e6;border-radius:20px;background:#fff;color:#0b0d0e;box-shadow:0 8px 24px rgba(0,0,0,.025),0 28px 72px -32px rgba(0,0,0,.15)}.lt-wechat__card-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-bottom:18px;border-bottom:1px solid #eef0f1}.lt-wechat__card-label{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:500}.lt-wechat__card-note{color:#646a71;font:8px var(--mono);letter-spacing:.1em}.lt-wechat__qr{display:block;width:100%;height:auto;background:#fff}.lt-wechat__card figcaption{display:flex;align-items:center;justify-content:center;gap:8px;margin-top:2px;padding-top:18px;border-top:1px solid #eef0f1;color:#3f454b;font-size:12px;letter-spacing:.06em;line-height:1.6}.lt-wechat__dot{width:5px;height:5px;border-radius:50%;background:#24813c}.lt-wechat__save{height:40px;font-size:12px;padding:0 18px}[data-theme=dark] .lt-wechat__card{border-color:#343a3f;box-shadow:0 24px 64px -24px rgba(0,0,0,.45)}@media(max-width: 900px){.lt-wechat__grid{grid-template-columns:minmax(0, 1fr) minmax(0, 360px);column-gap:40px}.lt-wechat__card{padding:22px}.lt-wechat__card-note{display:none}.lt-wechat__desktop-break{display:none}}@media(max-width: 680px){.lt-wechat__wrap{max-width:520px;padding-top:16px;padding-bottom:48px}.lt-wechat__grid{grid-template-columns:minmax(0, 1fr);grid-template-areas:"intro" "scan" "guide";gap:32px;padding-top:28px}.lt-wechat__eyebrow{margin-bottom:18px}.lt-wechat h1{font-size:clamp(42px,10vw,54px)}.lt-wechat__dek{margin:18px 0 22px;font-size:14px}.lt-wechat__guide{padding-top:20px;gap:16px}.lt-wechat__scan{width:100%;max-width:380px;justify-self:center;gap:18px}.lt-wechat__card{padding:20px;border-radius:16px}.lt-wechat__card-note{display:inline}}@media(max-width: 359px){.lt-wechat__card{padding:16px}.lt-wechat__card-note{display:none}}.lt-games__wrap{padding-top:64px;padding-bottom:72px}.lt-games__intro{margin-bottom:40px}.lt-games h1{margin:20px 0 16px;font-family:var(--serif);font-size:clamp(34px,4vw,52px);line-height:1.4;font-weight:500;letter-spacing:-0.03em}.lt-games__intro>p{margin:0;color:var(--ink-2);font-size:15px;line-height:1.8}.lt-games__feature{display:grid;grid-template-columns:minmax(0, 1.25fr) minmax(0, 1fr);border:1px solid var(--line);background:var(--surface)}.lt-games__preview{position:relative;min-width:0;min-height:360px;overflow:hidden;background:#16242c}.lt-games__preview img{display:block;width:100%;height:100%;object-fit:cover}.lt-games__preview-label{position:absolute;bottom:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:40px 24px 20px;color:#fff;font-size:12px;letter-spacing:.08em;background:linear-gradient(transparent, rgba(0, 0, 0, 0.65))}.lt-games__body{align-self:center;padding:clamp(28px,4vw,48px)}.lt-games__meta{margin:0 0 24px;color:var(--ink-3);font:11px var(--mono);letter-spacing:.04em}.lt-games h2{margin:0;font-size:36px;line-height:1.3;letter-spacing:-0.025em;font-weight:500}.lt-games__subtitle{display:block;margin-top:8px;color:var(--ink-2);font-size:18px;letter-spacing:.06em}.lt-games__description{margin:24px 0;color:var(--ink-2);font-size:15px;line-height:1.85}.lt-games__facts{display:flex;flex-wrap:wrap;gap:8px 20px;margin-bottom:28px;color:var(--ink-3);font-size:12px}.lt-games__device{margin:0 0 20px;color:var(--ink-3);font-size:12px;line-height:1.85}.lt-games__controls{display:grid;grid-template-columns:minmax(0, 1fr) minmax(0, 2fr);gap:48px;margin-top:56px;padding-top:32px;border-top:1px solid var(--line)}.lt-games__controls h2{margin-top:14px;font-size:23px}.lt-games__controls p{color:var(--ink-3);font-size:13px;line-height:1.8}.lt-games__controls dl{display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));gap:24px 32px;margin:0}.lt-games__controls dt{display:flex;flex-wrap:wrap;align-items:center;gap:5px;min-height:28px;font-size:13px}.lt-games__controls dd{margin:9px 0 0;font-size:13px;color:var(--ink-3);line-height:1.6}.lt-games kbd{padding:4px 7px;border:1px solid var(--line-2);border-radius:4px;background:var(--surface);font:11px var(--mono)}@media(max-width: 900px){.lt-games__feature{grid-template-columns:minmax(0, 1fr)}.lt-games__preview{min-height:0;aspect-ratio:16/9}.lt-games__preview img{position:absolute;inset:0}}@media(max-width: 600px){.lt-games__wrap{padding-top:36px;padding-bottom:48px}.lt-games__intro{margin-bottom:28px}.lt-games__controls{grid-template-columns:minmax(0, 1fr);gap:20px;margin-top:36px}.lt-games__body{padding:24px}.lt-games__controls dl{gap:24px 16px}}@media(max-width: 760px){.lt-hero__actions{flex-wrap:wrap}.lt-hero__actions .lt-game-cta{flex:0 0 100%}}:root{--sans: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--serif: "Iowan Old Style", "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", Georgia, serif}.lt-post-title{max-width:100%;font-size:clamp(28px,3.3vw,48px);line-height:1.4;letter-spacing:-0.02em;overflow-wrap:anywhere}.lt-featured__title{line-height:1.35;overflow-wrap:anywhere}.lt-card h3,.lt-entry .t{line-height:1.5;overflow-wrap:anywhere}.lt-hero__title{font-size:clamp(36px,5vw,66px);line-height:1.3}.lt-hero{display:grid;grid-template-columns:minmax(0, 1fr) minmax(0, 0.72fr);gap:40px clamp(32px,4vw,64px)}.lt-hero>.lt-fs{width:100%;max-width:480px;justify-self:end}@media(min-width: 761px)and (max-width: 1180px){.lt-hero{padding-top:56px;padding-bottom:56px}}@media(max-width: 760px){.lt-hero{grid-template-columns:minmax(0, 1fr);gap:28px}.lt-hero>.lt-fs{max-width:360px;justify-self:center;aspect-ratio:1.15/1}}.lt-brand{min-width:0}.lt-brand>span{overflow-wrap:anywhere}.lt-prose,.lt-sec-b{overflow-wrap:anywhere}.lt-prose iframe,.lt-sec-b iframe{display:block;max-width:100%;width:100%;aspect-ratio:16/9;height:auto;border:0}.lt-prose img,.lt-sec-b img{max-width:100%;height:auto}.lt-prose h1,.lt-prose h2,.lt-prose h3,.lt-sec-h h2{line-height:1.45}.lt-rail{max-height:calc(100vh - 120px);overflow-y:auto}.lt-profile{display:flex;align-items:center;flex-wrap:wrap;gap:20px;padding-bottom:28px}.lt-profile img{border-radius:50%;object-fit:cover}.lt-profile p{margin:4px 0}.lt-profile__location{display:inline-flex;align-items:center;gap:6px}.lt-profile__location svg{flex:none;color:var(--ink-3)}.lt-profile__links{display:flex;flex-wrap:wrap;gap:8px}.lt-footer-topics{display:grid;grid-template-columns:repeat(3, minmax(0, 1fr));gap:48px}.lt-footer-topics__group{min-width:0;border-top:1px solid var(--line);padding-top:20px}.lt-footer-topics h2{display:flex;align-items:center;gap:10px;margin:0 0 14px;font-size:15px;font-weight:500;line-height:1.5;color:var(--ink)}.lt-footer-topics ul{list-style:none;margin:0;padding:0}.lt-footer-topics a{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:40px;padding:8px 0;font-size:14px;line-height:1.5;color:var(--ink-2);transition:color .2s var(--ease)}.lt-footer-topics a span{min-width:0;overflow-wrap:anywhere}.lt-footer-topics a svg{flex:none;color:var(--ink-3);transition:color .2s var(--ease),transform .2s var(--ease)}.lt-footer-topics a:hover,.lt-footer-topics a:focus-visible{color:var(--ink)}.lt-footer-topics a:hover svg,.lt-footer-topics a:focus-visible svg{color:var(--ink);transform:translateX(3px)}@media(prefers-reduced-motion: reduce){.lt-footer-topics a,.lt-footer-topics a svg{transition:none}}.lt-pagination{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:20px;padding-top:32px;padding-bottom:64px}.lt-pagination__pages{display:flex;justify-content:center;flex-wrap:wrap;gap:6px}.lt-pagination__pages [aria-current]{background:var(--signal);color:var(--on-signal)}.lt-taxonomy{padding-top:64px;padding-bottom:64px}.lt-taxonomy>.lt-chips{margin:32px 0 48px}.lt-taxonomy-group{margin-bottom:48px;scroll-margin-top:88px}.lt-taxonomy-group h2{overflow-wrap:anywhere}.lt-taxonomy .lt-entry{grid-template-columns:110px minmax(0, 1fr) 24px}.lt-taxonomy .lt-more{margin-top:16px}.lt-sec-b{min-width:0}@media(max-width: 760px){.lt-footer-topics{grid-template-columns:1fr;gap:28px}.lt-footer-topics a{min-height:44px}.lt-taxonomy .lt-entry{grid-template-columns:minmax(0, 1fr);gap:8px}.lt-post-title{font-size:28px}.lt-header__bar{gap:12px}.lt-brand{font-size:16px}.lt-article-head{padding-top:32px}}.lt-noscript{display:flex;flex-wrap:wrap;gap:20px;padding-top:16px;padding-bottom:16px}.lt-mobile-toc{display:none;margin-bottom:32px}.lt-share-links{margin:32px 0}@media(max-width: 1180px){.lt-mobile-toc{display:block}.lt-mobile-toc summary{cursor:pointer;font-weight:600}}/*# sourceMappingURL=style.css.map */