:root{--paper:#eae6de;--paper-2:#e3ded5;--ink:#1b1815;--ink-soft:#34302b;--mute:#55504a;--mute-2:#6b655d;--faint:#837c71;--faint-2:#8b8478;--faint-3:#948c81;--line:#d3cec3;--line-2:#c6c0b4;--input-bg:#efebe3;--gold:#7a6320;--ok:#5a7a3c;--err:#9b2c2c;--accent-border-cover:3px;--accent-border-product:5px;--accent-border-poster:6px;--font-body:"Spectral", Georgia, serif;--font-ui:"Archivo", system-ui, sans-serif;--font-mono:"IBM Plex Mono", ui-monospace, monospace;--stripe:repeating-linear-gradient(135deg, #ffffff0e 0 9px, transparent 9px 18px)}*{box-sizing:border-box}html,body{background:var(--paper);color:var(--ink);font-family:var(--font-ui);margin:0;padding:0}a{color:inherit;text-decoration:none}a:hover{opacity:.72}input,button,select{font:inherit}*{border-radius:0}.bk-vgrid{grid-template-columns:repeat(3,1fr);gap:20px;display:grid}@media (width<=880px){.bk-vgrid{scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;grid-template-columns:none;grid-auto-columns:76%;grid-auto-flow:column;padding-bottom:14px;scroll-padding-left:28px;overflow-x:auto}.bk-vcard{scroll-snap-align:start}}.bk-vgrid::-webkit-scrollbar{height:6px}.bk-vgrid::-webkit-scrollbar-thumb{background:var(--line-2)}@media (prefers-reduced-motion:reduce){.bk-vgrid{scroll-behavior:auto}}@keyframes bkfade{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}@keyframes bkslide{0%{transform:translate(100%)}to{transform:none}}@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important}}body{user-select:none}input,textarea,select,[contenteditable],[data-allow-copy]{user-select:text}.bk-badge{min-width:20px;height:20px;color:var(--faint-2);border:1px solid var(--line);background:0 0;border-radius:10px;justify-content:center;align-items:center;padding:0 6px;font-size:10.5px;display:inline-flex}.bk-badge.has-items{background:var(--ink);color:var(--paper);border:none}.bk-cart{display:none}.bk-cart.is-open{display:block}.bk-cart__scrim{z-index:60;background:#14120f6b;position:fixed;inset:0}.bk-cart__panel{z-index:70;background:var(--paper);width:min(420px,92vw);color:var(--ink);flex-direction:column;animation:.32s cubic-bezier(.2,.8,.2,1) both bkslide;display:flex;position:fixed;top:0;bottom:0;right:0;box-shadow:-24px 0 60px #00000038}.bk-check{cursor:pointer;font-family:var(--font-ui);color:var(--mute-2);align-items:center;gap:10px;font-size:13px;display:flex;position:relative}.bk-check__box{border:1px solid var(--line-2);color:#fff;background:0 0;flex-shrink:0;justify-content:center;align-items:center;width:17px;height:17px;font-size:10px;display:inline-flex}.bk-check input{opacity:0;pointer-events:none;position:absolute}.bk-check.is-on{color:var(--ink)}.bk-check.is-on .bk-check__box{border-color:var(--accent);background:var(--accent)}.bk-chip{cursor:pointer;border:1px solid var(--line);color:var(--mute);font-family:var(--font-ui);letter-spacing:.04em;background:0 0;padding:8px 15px;font-size:12px}.bk-chip.is-active{border-color:var(--ink);background:var(--ink);color:var(--paper)}.bk-format.is-selected{box-shadow:inset 0 -3px 0 var(--accent);background:#00000008;border-color:var(--accent)!important}.bk-prose{font-family:var(--font-body);color:var(--ink-soft);max-width:64ch;font-size:17px;font-weight:300;line-height:1.7}.bk-prose h2{font-family:var(--font-body);letter-spacing:-.01em;color:var(--ink);margin:40px 0 12px;font-size:23px;font-weight:400;line-height:1.25}.bk-prose h3{font-family:var(--font-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--mute);margin:30px 0 8px;font-size:13px;font-weight:600}.bk-prose p{text-wrap:pretty;margin:0 0 16px}.bk-prose ul{margin:0 0 16px;padding-left:20px}.bk-prose li{margin:0 0 8px}.bk-prose a{color:var(--ink);text-underline-offset:2px;text-decoration:underline}.bk-prose strong{font-weight:600}.bk-q-grid{grid-template-columns:1.55fr 1fr;align-items:start;gap:56px;display:grid}@media (width<=820px){.bk-q-grid{grid-template-columns:1fr;gap:32px}}.bk-draft{border:1px solid var(--line-2);background:var(--paper-2);font-family:var(--font-mono);letter-spacing:.04em;color:var(--mute);margin:0 0 36px;padding:12px 16px;font-size:11px;line-height:1.6;display:block}.bk-visually-hidden{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.bk-flink{color:inherit;text-underline-offset:2px;text-decoration:underline}.bk-rail{scroll-snap-type:x proximity;-webkit-overflow-scrolling:touch;gap:22px;padding-bottom:12px;scroll-padding-left:28px;display:flex;overflow-x:auto}.bk-rail>*{scroll-snap-align:start;flex:0 0 172px}.bk-rail::-webkit-scrollbar{height:6px}.bk-rail::-webkit-scrollbar-thumb{background:var(--line-2)}@media (prefers-reduced-motion:reduce){.bk-rail{scroll-behavior:auto}}@media (width<=860px){.bk-hero{grid-template-columns:1fr!important;min-height:auto!important}.bk-hero-worlds{display:none!important}}@media (width<=720px){.bk-product-grid{grid-template-columns:1fr!important;gap:34px!important}.bk-product-cover{max-width:320px;position:static!important}}@media (width<=640px){.bk-footer-grid{grid-template-columns:1fr!important;gap:40px!important}}@media (width<=560px){.bk-header{flex-wrap:wrap;gap:12px!important}}.skip-link{z-index:1000;background:var(--ink);color:var(--paper);font-family:var(--font-ui);padding:10px 16px;font-size:13px;text-decoration:none;transition:top .15s;position:absolute;top:-48px;left:8px}.skip-link:focus{top:8px}#main-content:focus{outline:none}@font-face{font-family:Archivo;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/archivo-vietnamese-700-normal.nuAQAQa7.woff2)format("woff2"),url(/_astro/archivo-vietnamese-700-normal.Bz2vkKqq.woff)format("woff");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Archivo;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/archivo-latin-ext-700-normal.DD_nkw6b.woff2)format("woff2"),url(/_astro/archivo-latin-ext-700-normal.CgyfnKjw.woff)format("woff");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Archivo;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/archivo-latin-700-normal.D9cHMWGj.woff2)format("woff2"),url(/_astro/archivo-latin-700-normal.lT5TFe7H.woff)format("woff");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}