.duplex-section{padding-block:110px}.duplex-section>h2{font-size:clamp(38px,6vw,78px);line-height:1.22;letter-spacing:-.04em;max-width:1000px}.duplex-section>h2 em{font-style:normal;color:var(--soft-blue)}.duplex-intro{max-width:750px;color:var(--muted);font-size:19px}.duplex-lab{margin-top:48px;border:1px solid var(--line);border-radius:28px;background:var(--surface);overflow:hidden;box-shadow:var(--shadow)}.duplex-top{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;padding:23px 32px;border-bottom:1px solid var(--line);font-size:11px;letter-spacing:.07em}.duplex-disclaimer{color:var(--muted)}.duplex-conversation{display:grid;grid-template-columns:1fr 160px 1fr;align-items:center;gap:28px;padding:54px 32px 10px;direction:ltr}.duplex-person{min-height:220px;direction:inherit;border:1px solid var(--line);border-radius:20px;padding:24px;background:var(--bg);transition:border-color .2s,box-shadow .2s}.duplex-person.active{border-color:var(--soft-blue);box-shadow:0 0 40px #365cff15}.duplex-person-top{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:15px}.duplex-listen,.duplex-speaking{font-size:10px;color:var(--muted)}.duplex-listen.on{color:var(--soft-blue)}.duplex-listen.on:before{content:'';display:inline-block;background:currentColor;width:6px;height:6px;border-radius:50%;margin-inline-end:6px}.duplex-wave{display:flex;justify-content:center;align-items:center;gap:3px;height:50px;margin:15px 0}.duplex-wave i{display:block;width:3px;height:4px;background:var(--muted);border-radius:2px;transform-origin:center}.duplex-person.active .duplex-wave i{background:var(--soft-blue)}.duplex-caption{font-size:16px;line-height:1.8;min-height:58px;margin:0;direction:rtl;text-align:start}.duplex-core{position:relative;display:flex;justify-content:center;align-items:center;aspect-ratio:1}.duplex-core img{width:120px;position:relative;z-index:2}.duplex-orbit{position:absolute;inset:0;border:1px solid var(--line);border-radius:50%;box-shadow:0 0 0 12px #365cff05,0 0 0 25px #365cff03}.duplex-lab[data-active=true] .duplex-orbit{border-color:var(--soft-blue)}.duplex-orbit:after{content:'';width:9px;height:9px;background:var(--blue);position:absolute;top:20%;left:7%;border-radius:50%;box-shadow:0 0 18px #365cff}.duplex-observation{min-height:56px;padding:8px 32px 18px;text-align:center;color:var(--soft-blue);font-size:13px}.duplex-work{padding:28px 32px 32px;border-top:1px solid var(--line);background:linear-gradient(145deg,#365cff0b,transparent)}.duplex-work-heading{display:flex;align-items:center;justify-content:space-between;gap:24px}.duplex-work-heading h3{font-size:21px;margin:0}.duplex-work-heading p{font-size:12px;color:var(--muted)}.duplex-route{display:grid;grid-template-columns:1fr 30px 1fr 30px 1fr;align-items:center;gap:14px;margin-top:24px;direction:ltr}.duplex-node{padding:19px;border:1px solid var(--line);border-radius:13px;display:flex;flex-direction:column;gap:7px;min-height:126px;background:var(--bg)}.duplex-node small{font-size:9px;letter-spacing:.1em;color:var(--soft-blue)}.duplex-node strong{font-size:15px}.duplex-node>span{font-size:11px;color:var(--muted)}.duplex-node.active{border-color:var(--soft-blue);background:color-mix(in srgb,var(--blue) 7%,var(--bg))}.duplex-arrow{color:var(--soft-blue);text-align:center}.duplex-transport{display:flex;align-items:center;gap:16px;padding:24px 32px;border-top:1px solid var(--line);direction:ltr}.duplex-transport .button{font-size:12px;padding:11px 20px;white-space:nowrap}.duplex-transport input{flex:1;min-width:70px;accent-color:var(--blue)}.duplex-transport output{font-size:11px;color:var(--muted);white-space:nowrap}.duplex-mute{background:none;border:0;color:var(--fg);font:inherit;font-size:11px;cursor:pointer}.duplex-chapters{display:flex;justify-content:center;gap:10px;padding:0 24px 22px;flex-wrap:wrap}.duplex-chapters button{background:var(--surface2);border:1px solid var(--line);color:var(--fg);padding:7px 13px;border-radius:20px;font:inherit;font-size:11px;cursor:pointer}.duplex-note{padding:0 32px;font-size:11px;color:var(--muted);max-width:900px}.duplex-details{margin:22px 32px 30px;font-size:12px;color:var(--muted)}.duplex-details summary{cursor:pointer;color:var(--fg)}.duplex-details p{margin-top:12px}.duplex-transcript-row{padding:8px 0;border-bottom:1px solid var(--line)}.duplex-transcript-row strong{color:var(--fg);margin-inline-end:10px}.duplex-lab button:focus-visible,.duplex-lab input:focus-visible,.duplex-lab summary:focus-visible{outline:3px solid var(--soft-blue);outline-offset:4px}html[dir=rtl] .duplex-person,html[dir=rtl] .duplex-node{direction:rtl}html[lang=en] .duplex-caption{direction:ltr}@media(max-width:760px){.duplex-section{padding-block:70px}.duplex-conversation{grid-template-columns:1fr 1fr;gap:12px;padding:26px 16px 10px}.duplex-core{grid-column:1/-1;grid-row:1;width:85px;justify-self:center;margin-bottom:10px}.duplex-core img{width:70px}.duplex-person{padding:15px;min-height:230px}.duplex-caption{font-size:13px}.duplex-person-top{flex-wrap:wrap;font-size:13px}.duplex-top{padding:20px 16px}.duplex-work{padding:22px 16px}.duplex-work-heading{display:block}.duplex-route{grid-template-columns:1fr;gap:6px}.duplex-arrow{transform:rotate(90deg);line-height:20px}.duplex-node{min-height:auto;padding:12px 16px}.duplex-transport{padding:20px 16px;gap:10px;flex-wrap:wrap}.duplex-transport input{order:4;flex-basis:75%}.duplex-transport output{order:5}.duplex-note,.duplex-observation{padding-inline:16px}.duplex-details{margin-inline:16px}}@media(prefers-reduced-motion:reduce){.duplex-person{transition:none}}

.duplex-positioning{font-size:16px;color:var(--fg);margin:20px 0 0}.duplex-review{font-size:10px;color:var(--muted);margin:5px 0 26px}
/* Reference-inspired interactive multitrack sequence, using Core identity. */
.duplex-sequence{padding:34px 30px 0;--track-label:145px;direction:ltr}.sequence-stages{display:flex;justify-content:space-between;gap:12px;margin-left:var(--track-label);border-bottom:1px solid var(--line);padding-bottom:16px;margin-bottom:14px}.sequence-stages button{border:0;background:transparent;color:var(--muted);font:inherit;font-size:13px;cursor:pointer;padding:8px}.sequence-stages button.current{color:var(--soft-blue);box-shadow:0 2px var(--blue)}.sequence-plot{position:relative;border:1px solid var(--line);border-radius:17px;overflow:hidden}.sequence-row{display:grid;grid-template-columns:var(--track-label) 1fr;min-height:95px;position:relative}.sequence-row+.sequence-row{border-top:1px solid var(--line)}.sequence-label{padding:20px 16px;display:flex;flex-direction:column;gap:5px}.sequence-label strong{font-size:14px}.sequence-label small{font-size:10px;color:var(--muted)}.customer-track{background:color-mix(in srgb,var(--soft-blue) 3%,var(--surface))}.madar-track{background:color-mix(in srgb,var(--blue) 8%,var(--surface));min-height:120px}.sequence-track{position:relative;min-width:0;cursor:crosshair;touch-action:pan-y}.sequence-track svg{width:100%;height:62px;display:block;margin-top:17px;color:var(--muted)}.madar-track svg{color:var(--soft-blue);margin-top:44px}.sequence-listen-bar{position:absolute;top:30px;left:4.76%;right:3.57%;height:2px;background:var(--soft-blue);opacity:.6}.sequence-listen-bar span{position:absolute;bottom:6px;font-size:8px;color:var(--soft-blue);white-space:nowrap}.sequence-rail{position:absolute;left:var(--track-label);right:0;top:0;bottom:0;pointer-events:none;z-index:4}.sequence-rail>span{position:absolute;top:0;bottom:0;border-left:1px solid var(--soft-blue);left:0}.sequence-rail>span:before{content:'';display:block;position:absolute;top:0;left:-4px;width:7px;height:7px;border-radius:50%;background:var(--blue)}.sequence-events{min-height:95px}.sequence-events button{position:absolute;left:var(--start);width:var(--length);min-width:36px;top:27px;padding:10px 3px;background:var(--surface2);border:1px solid var(--line);border-radius:7px;font:inherit;font-size:9px;color:var(--fg);cursor:pointer;line-height:1.4}.sequence-events button:before{content:'↓';position:absolute;top:-26px;left:50%;color:var(--soft-blue);font-size:16px}.sequence-events button.current{background:var(--blue);color:white;border-color:var(--blue)}.sequence-hint{font-size:10px;text-align:center;color:var(--muted);margin:14px 0}.sequence-inspector{min-height:42px;font-size:12px;color:var(--soft-blue);text-align:center;direction:rtl}.duplex-conversation{display:grid;grid-template-columns:1fr 1fr;padding:10px 30px;gap:20px}.duplex-core,.duplex-wave,.duplex-work{display:none}.duplex-person{min-height:110px;border:0;background:transparent;border-radius:0;border-inline-start:2px solid var(--line);padding:8px 18px}.duplex-caption{font-size:14px;min-height:50px;margin-top:8px}.duplex-person.active{box-shadow:none}.duplex-observation{font-size:12px;min-height:48px}.sequence-speed{display:flex;gap:5px;align-items:center;font-size:10px;color:var(--muted)}.sequence-speed select{font:inherit;color:var(--fg);background:var(--surface2);border:1px solid var(--line);border-radius:6px;padding:5px;cursor:pointer}html[dir=rtl] .sequence-label{text-align:right}html[lang=en] .sequence-inspector{direction:ltr}@media(max-width:760px){.duplex-sequence{padding:20px 10px 0;--track-label:88px}.sequence-stages{gap:2px}.sequence-stages button{font-size:10px;padding:4px}.sequence-label{padding:22px 8px}.sequence-label strong{font-size:11px}.sequence-label small{font-size:8px}.sequence-events button{font-size:8px;padding:8px 2px;min-width:28px}.duplex-conversation{padding:8px 12px;gap:10px}.duplex-person{min-height:130px;padding:8px}.duplex-caption{font-size:12px}.sequence-speed{margin-left:auto}.sequence-inspector{font-size:11px}.sequence-listen-bar span{font-size:7px}}