body:has(.beta){--b-giay: var(--paper);--b-kinh: var(--surface);--b-muc: var(--ink);--b-do: var(--st-down);--b-nhu: var(--accent);--b-xam: var(--faint);--b-thanhca: var(--st-ok);--b-line: var(--line);--b-line-strong: var(--line-strong);--b-on-audio: var(--paper);--b-display: var(--display);--b-body: var(--sans);--b-mono: var(--mono);--b-fs-floor: 13px;--b-measure: 62ch;--b-gap: 8px;color:var(--b-muc)}.beta{max-width:var(--b-measure);margin:0 auto;padding:16px 0 64px;color:var(--b-muc);font-family:var(--b-body)}.beta ::selection{background:var(--b-do);color:var(--paper)}.beta-head{margin-bottom:24px}.beta-tag{display:inline-block;font:500 var(--b-fs-floor)/1 var(--b-mono);color:var(--b-nhu);margin-bottom:8px}.beta-title{font:700 30px/1.15 var(--b-display);color:var(--b-muc);margin:0 0 2px;letter-spacing:-.01em}.beta-sub{font:400 15px/1.4 var(--b-mono);color:var(--b-xam);margin:0 0 8px}.beta .mh-beta{display:inline-block;vertical-align:middle;color:var(--b-nhu);border:1px solid currentColor;border-radius:2px;padding:1px 6px;margin-left:8px;font:500 12px/1.6 var(--b-mono);letter-spacing:.02em}.beta .mh-byline{font:400 var(--b-fs-floor)/1.6 var(--b-mono);color:var(--b-xam);margin:8px 0 0;font-variant-numeric:tabular-nums}.beta .mh-voice{color:var(--b-muc)}.beta-form{display:flex;flex-direction:column;gap:var(--b-gap);margin:16px 0 8px}.beta-input{width:100%;box-sizing:border-box;padding:16px;background:var(--b-kinh);border:1px solid var(--b-line-strong);border-radius:3px;font:700 20px/1.3 var(--b-display);color:var(--b-muc)}.beta-input::placeholder{color:var(--b-xam);font-weight:400}.beta-input:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta-go{width:100%;min-height:48px;padding:0 16px;background:var(--b-muc);color:var(--b-kinh);border:0;border-radius:2px;font:600 16px/1 var(--b-display);cursor:pointer}.beta-go:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta [hidden],.beta-chips[hidden]{display:none!important}.beta-chips{display:flex;flex-wrap:wrap;gap:var(--b-gap);margin-bottom:24px}.beta .chip{min-height:32px;padding:6px 12px;border-radius:2px;border:1px solid var(--b-line);background:transparent;color:var(--b-muc);font:400 var(--b-fs-floor)/1.4 var(--b-mono);cursor:pointer}.beta .chip:hover{border-color:var(--b-line-strong);background:var(--b-kinh)}.beta .chip:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta .ans{margin:28px 0 40px}.beta .ans-label{font:500 var(--b-fs-floor)/1 var(--b-mono);color:var(--b-nhu);margin-bottom:var(--b-gap)}.beta .ans-text{font:400 19px/1.7 var(--b-body);color:var(--b-muc);margin:0 0 20px;padding-left:18px;border-left:2px solid var(--b-do)}.beta .cite{display:inline-block;min-width:44px;min-height:44px;padding:10px 4px;margin:-10px 0 -10px 2px;font:500 .72em/24px var(--b-mono);vertical-align:baseline;color:var(--b-do);text-decoration:none;text-align:center}.beta .cite:hover,.beta .cite:focus-visible{background:var(--b-do);color:var(--b-kinh)}.beta .cite:focus-visible{outline:2px solid var(--b-nhu);outline-offset:1px}.beta .ans-src{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}.beta .src{display:flex;align-items:baseline;gap:var(--b-gap);min-height:32px;padding:6px 8px;text-decoration:none;color:var(--b-muc);background:var(--b-kinh)}.beta .src:hover{background:var(--surface-2)}.beta .src:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta .src-n{flex:none;font:500 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-do)}.beta .src-t{font:600 15px/1.4 var(--b-body)}.beta .src-d{margin-left:auto;font:400 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-xam)}.beta .ans.is-empty .ans-text{font-size:16px;color:var(--b-xam);min-height:180px}.beta .ans.is-empty .ans-foot{display:none}.beta .ans.is-pending .ans-foot{visibility:hidden}.beta .ans.is-pending .ans-label:after{content:" · đang viết…";color:var(--b-xam);font-weight:400}.beta .ans-none-en{color:var(--b-xam)}.beta .ans-foot{font:400 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-xam);margin:0}.beta .ans-foot-en{color:var(--b-xam)}.beta-status{padding:12px 0;font:400 15px/1.5 var(--b-mono);color:var(--b-xam)}.beta-status.is-err{color:var(--b-do)}.beta-status.is-limit{color:var(--b-nhu)}.beta-status.is-empty{color:var(--b-muc)}.beta .beta-how{font:400 var(--b-fs-floor)/1.6 var(--b-mono);color:var(--b-xam);margin:0 0 20px}.beta .beta-how strong{color:var(--b-muc);font-weight:500}.beta .beta-how-en{color:var(--b-xam)}.beta .results{display:flex;flex-direction:column;gap:10px}.beta .r{background:var(--b-kinh);border:1px solid var(--b-line);border-radius:3px;padding:16px}.beta .r-top{display:flex;gap:var(--b-gap);flex-wrap:wrap;margin-bottom:var(--b-gap)}.beta .r-n{font:500 var(--b-fs-floor)/1.4 var(--b-mono);color:var(--b-do)}.beta .r-why{font:400 var(--b-fs-floor)/1.4 var(--b-mono);color:var(--b-xam)}.beta .r-title{font:700 16px/1.3 var(--b-display);margin:0 0 2px}.beta .r-title a{color:var(--b-muc);text-decoration:none;display:inline-block;padding:2px 0}.beta .r-title a:hover{text-decoration:underline}.beta .r-title a:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta .r-en{font:400 var(--b-fs-floor)/1.4 var(--b-mono);color:var(--b-xam);margin:0 0 2px}.beta .r-meta{font:400 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-xam);margin:0 0 12px}.beta .r-fit{font:500 15px/1.5 var(--b-body);color:var(--b-muc);margin:0 0 10px}.beta .r-quote{font:400 15px/1.6 var(--b-body);color:var(--muted);margin:0 0 12px;padding-left:12px;border-left:2px solid var(--b-line-strong)}.beta .r-at{font:400 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-xam)}.beta .more-h{font:500 var(--b-fs-floor)/1 var(--b-mono);color:var(--b-nhu);margin:24px 0 0;border:0}.beta .r-ref{color:var(--b-nhu)}.beta .r-aka{margin:2px 0 0;font:400 12.5px/1.4 var(--b-mono);color:var(--b-xam);-webkit-user-select:text;user-select:text}.beta .r-guest{font:500 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-muc);margin:0 0 6px}.beta .r-play-row{display:flex;flex-direction:column;align-items:stretch}.beta .r-play,.beta .r-yt{display:flex;align-items:center;gap:10px;width:100%;min-height:48px;padding:0 14px;border-radius:2px;cursor:pointer;border:0;background:var(--b-thanhca);color:var(--b-on-audio);font:500 14px/1 var(--b-mono);text-decoration:none;text-align:left}.beta .r-play-t{flex:none}.beta .dots{flex:1 1 auto;height:2px;align-self:center;min-width:24px;background-image:radial-gradient(circle,currentColor 1px,transparent 1.1px);background-size:7px 7px;background-repeat:repeat-x;background-position:0 center;opacity:.75}.beta .r-play-at{flex:none;font-variant-numeric:tabular-nums}.beta .r-yt{background:transparent;color:var(--b-thanhca);border:1px solid var(--b-thanhca);width:100%;margin-top:6px}.beta .rec-block{margin:28px 0 8px;padding-top:18px;border-top:1px solid var(--b-line)}.beta .rec-h{margin:0 0 12px;font:500 13px/1.3 var(--b-mono);letter-spacing:.06em;text-transform:uppercase;color:var(--b-xam)}.beta .rec-h-en{text-transform:none;letter-spacing:0}.beta .rec-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}.beta .rec{display:grid;gap:3px}.beta .rec-t{font:600 16px/1.35 var(--b-display);color:inherit;text-decoration:none;border-bottom:1px solid transparent;justify-self:start}.beta .rec-t:hover,.beta .rec-t:focus-visible{border-bottom-color:currentColor}.beta .rec-en{font-size:13px;color:var(--b-xam)}.beta .rec-why{font:400 13px/1.4 var(--b-mono);color:var(--b-thanhca)}.beta .rec-meta{font:400 12px/1.4 var(--b-mono);color:var(--b-xam)}.beta .r-yt-frame{margin-top:8px;aspect-ratio:16 / 9;width:100%;background:#000;border-radius:2px;overflow:hidden}.beta .r-yt-frame iframe{width:100%;height:100%;border:0;display:block}.beta .r-play:focus-visible,.beta .r-yt:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta .r-play-i{font-size:.8em}.beta .r-audio{width:100%;margin-top:6px;height:40px;border:1px solid var(--b-thanhca);border-radius:2px;background:var(--b-kinh);color-scheme:dark}.beta .r-audio::-webkit-media-controls-enclosure{background:var(--b-kinh);border-radius:0}.beta .r-audio::-webkit-media-controls-panel{background:var(--b-kinh)}.beta .r-src{display:flex;align-items:center;gap:6px;margin:6px 0 0;font:400 var(--b-fs-floor)/1.5 var(--b-mono);color:var(--b-xam)}.beta .r-src-logo{flex:none;border-radius:2px}.beta .r-src a{color:var(--b-nhu);text-decoration:none}.beta .r-src a:hover{text-decoration:underline}.beta .r-src a:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.beta .sim-open{display:block;width:100%;min-height:48px;margin:32px 0 0;background:transparent;color:var(--b-nhu);cursor:pointer;border:1px dashed var(--b-line-strong);border-radius:3px;font:500 14px/1 var(--b-mono)}.beta .sim-open:hover{border-color:var(--b-nhu)}.beta .sim-open:focus-visible{outline:2px solid var(--b-nhu);outline-offset:2px}.sim[hidden]{display:none}.sim{position:fixed;inset:0;z-index:60;display:flex;align-items:flex-start;justify-content:center;padding:24px 12px}.sim-scrim{position:absolute;inset:0;background:#0000008c}.sim-panel{position:relative;width:100%;max-width:640px;max-height:calc(100vh - 48px);display:flex;flex-direction:column;overflow:hidden;background:var(--surface);border:1px solid var(--line-strong);border-radius:6px;box-shadow:0 24px 64px #00000080}.sim-form{display:flex;gap:8px;padding:12px;border-bottom:1px solid var(--line)}.sim-input{flex:1;min-width:0;padding:12px;background:var(--inset);color:var(--ink);border:1px solid var(--line-strong);border-radius:3px;font:400 17px/1.3 var(--display)}.sim-input:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.sim-close{min-width:48px;min-height:48px;background:transparent;color:var(--faint);border:1px solid var(--line-strong);border-radius:3px;cursor:pointer;font:500 12px/1 var(--mono)}.sim-close:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.sim-hint{margin:0;padding:6px 12px;border-bottom:1px solid var(--line);font:400 12px/1.4 var(--mono);color:var(--faint)}.sim-body{overflow-y:auto;-webkit-overflow-scrolling:touch}.sim-ans{margin:0;padding:14px 12px;border-bottom:1px solid var(--line);font:400 16px/1.6 var(--sans);color:var(--ink)}.sim-ans.is-pending{color:var(--faint);font-family:var(--mono);font-size:13px}.sim-list{list-style:none;margin:0;padding:0}.sim-row{display:flex;flex-direction:column;gap:3px;cursor:pointer;padding:12px;border-bottom:1px solid var(--line-2)}.sim-row.is-active{background:var(--surface-2);box-shadow:inset 3px 0 0 var(--accent)}.sim-t{font:600 16px/1.3 var(--display);color:var(--ink)}.sim-m{font:400 13px/1.4 var(--mono);color:var(--faint)}.sim-w{font:400 14px/1.5 var(--sans);color:var(--muted);margin-top:2px}.sim-slot audio{width:100%;margin-top:8px;height:36px}@media(max-width:30rem){.sim{padding:8px}.sim-panel{max-height:calc(100vh - 16px)}}@media(prefers-reduced-motion:reduce){.sim-row{transition:none}}.beta .sk{margin-bottom:10px}.beta .ans-text .sk-line{display:block;height:1.1rem;margin:10px 0}.beta .sk-src{display:block;height:32px;margin-bottom:2px;border-radius:1px;background:color-mix(in srgb,var(--b-xam) 12%,transparent)}@media(prefers-reduced-motion:no-preference){.beta .sk-src{animation:sk-sweep 1.4s ease-in-out infinite}}.beta .sk-r{background:var(--b-kinh);border:1px solid var(--b-line);border-radius:3px;padding:16px}.beta .sk-line{height:.8rem;margin:var(--b-gap) 0;border-radius:1px;background:linear-gradient(90deg,color-mix(in srgb,var(--b-xam) 18%,transparent) 25%,color-mix(in srgb,var(--b-xam) 34%,transparent) 37%,color-mix(in srgb,var(--b-xam) 18%,transparent) 63%);background-size:400% 100%;animation:sk-sweep 1.4s ease-in-out infinite}.beta .sk-line.sm{height:.65rem}.sk-line.lg{height:1.1rem}.beta .w30{width:30%}.w40{width:40%}.w60{width:60%}.beta .w70{width:70%}.w80{width:80%}@keyframes sk-sweep{0%{background-position:100% 50%}to{background-position:0 50%}}.beta .beta-rule{height:3px;margin:0 0 20px;overflow:hidden}.beta .beta-rule span{display:block;height:100%;background:var(--b-do);transform:scaleX(0);transform-origin:left}.beta .beta-rule.is-running span{animation:sweep 1.1s cubic-bezier(.2,.7,.2,1) infinite}@keyframes sweep{0%{transform:scaleX(0);transform-origin:left}45%{transform:scaleX(1);transform-origin:left}55%{transform:scaleX(1);transform-origin:right}to{transform:scaleX(0);transform-origin:right}}.beta .ans{animation:fade .18s linear both}.beta .ans-text{border-left:2px solid transparent;background-image:linear-gradient(var(--b-do),var(--b-do));background-repeat:no-repeat;background-size:2px 100%;background-position:left top;animation:draw .3s ease-out 60ms both}@keyframes draw{0%{background-size:2px 0}to{background-size:2px 100%}}@keyframes fade{0%{opacity:0}to{opacity:1}}.beta .cite{animation:stamp .12s ease-out both}@keyframes stamp{0%{opacity:0;transform:translateY(2px)}to{opacity:1;transform:none}}.beta .r{animation:rise .2s ease-out both}.beta .r:nth-child(1){animation-delay:.26s}.beta .r:nth-child(2){animation-delay:.34s}.beta .r:nth-child(3){animation-delay:.42s}.beta .r:nth-child(4){animation-delay:.5s}.beta .r:nth-child(n+5){animation-delay:.58s}@keyframes rise{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}.beta .r.is-marked{box-shadow:inset 3px 0 0 var(--b-do)}.beta .r.is-playing{box-shadow:inset 3px 0 0 var(--b-thanhca);border-color:var(--b-thanhca)}.beta .r.is-flash{animation:flash 1.1s ease-in both}@keyframes flash{0%,18%{background:var(--surface-2)}to{background:var(--b-kinh)}}.beta .cite.is-active{background:var(--b-do);color:var(--paper)}.beta .r-play{--played: 0%}.beta .r-play .dots{background-image:linear-gradient(to right,var(--b-on-audio) 0 var(--played),transparent var(--played)),radial-gradient(circle,currentColor 1px,transparent 1.1px);background-size:100% 2px,7px 7px;background-repeat:no-repeat,repeat-x;background-position:left center,0 center}@media(prefers-reduced-motion:reduce){.beta .ans,.beta .r,.beta .cite{animation-duration:.12s;animation-name:fade}.beta .ans-text{animation:none;background-size:2px 100%}.beta .r.is-flash{animation:none}.beta .r.is-marked{box-shadow:inset 3px 0 0 var(--b-do);background:var(--surface-2)}.beta .beta-rule.is-running span{animation:none;transform:scaleX(1)}.beta .sk-line{animation:none;background:color-mix(in srgb,var(--b-xam) 22%,transparent)}}@media(min-width:640px){.beta{padding-top:24px}.beta-form{flex-direction:row}.beta-go{width:auto;white-space:nowrap}.beta .r-quote{font-size:17px}.beta .ans-text{font-size:20px}}