.method-animation{overflow:hidden;border:2px solid var(--line);border-radius:18px;background:#fff;box-shadow:0 20px 55px rgba(19,45,61,.09)}
.animation-topline{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:24px 28px 18px}
.animation-kicker,.animation-panel-title,.animation-target>span,.animation-loss>span{font-size:15px;font-weight:850;letter-spacing:.15em;text-transform:uppercase;color:var(--mint-dark)}
.animation-topline h3{margin:5px 0 0;font:700 clamp(22px,2.5vw,30px)/1.2 Georgia,serif;letter-spacing:-.035em}
.animation-controls{display:flex;gap:7px;flex-shrink:0}
.animation-controls button{cursor:pointer;border:2px solid var(--border-strong);border-radius:999px;padding:7px 13px;background:#fff;color:var(--ink);font-size:15px;font-weight:750}
.animation-controls button:hover{background:#e5f3ee}
.animation-controls button:disabled{cursor:default;opacity:1}
.animation-stages{display:grid;grid-template-columns:repeat(3,1fr);gap:7px;padding:0 28px 20px}
.animation-stage{cursor:pointer;border:2px solid var(--line);border-radius:9px;background:#fff;color:var(--ink);text-align:left;padding:10px 13px;font-size:15px;font-weight:750;transition:background .25s,color .25s,border-color .25s}
.animation-stage span{margin-right:8px;color:var(--mint-dark);font-weight:850}
.animation-stage.is-current{background:#163f45;border-color:#163f45;color:#fff}
.animation-stage.is-current span{color:#b5f4df}
.animation-diagram{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(270px,.78fr);gap:12px;padding:0 28px}
.animation-training,.animation-inference{min-width:0;border:2px solid var(--line);border-radius:12px;background:#fff;padding:17px 17px 18px}
.animation-panel-title{display:flex;justify-content:space-between;gap:10px;margin-bottom:15px}
.animation-panel-title span{color:var(--ink);font-weight:650;letter-spacing:0;text-transform:none}
.animation-flow{display:grid;grid-template-columns:minmax(75px,.85fr) 26px minmax(90px,1fr) 26px minmax(125px,1.22fr);align-items:center;gap:5px;transition:opacity .4s}
.animation-flow + .animation-target{margin:10px 0 17px}
.animation-node{min-height:75px;display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;border:2px solid var(--line);border-radius:9px;background:#f6faf8;padding:10px 8px;color:var(--ink);font-size:15px;font-weight:800;line-height:1.15}
.animation-node small,.animation-step small{display:block;margin-top:5px;color:var(--ink);font-size:15px;font-weight:600;line-height:1.2}
.animation-network{background:#f4f7fa;border-color:#6286a0}
.animation-result{background:#e9f4f7;border-color:#6696a5}
.animation-connector{position:relative;width:100%;height:2px;background:#8aa4a8}
.animation-connector:before{content:"";position:absolute;right:-2px;top:-4px;border-left:7px solid #8aa4a8;border-top:5px solid transparent;border-bottom:5px solid transparent}
.animation-connector:after{content:"";position:absolute;left:0;top:-4px;width:10px;height:10px;border-radius:50%;background:#2ca788;box-shadow:0 0 0 3px rgba(44,167,136,.17);opacity:0}
.animation-target,.animation-loss{display:flex;flex-wrap:wrap;align-items:baseline;gap:3px 11px;border-radius:9px;padding:10px 13px;transition:opacity .4s,box-shadow .4s}
.animation-target{background:#e9f5f2;border:2px solid #4f927b}
.animation-loss{margin-top:10px;background:#fff4db;border:2px solid #b28b2d}
.animation-target>span,.animation-loss>span{width:100%}
.animation-target strong,.animation-loss strong{color:var(--ink);font:600 clamp(15px,1.7vw,20px)/1.3 Georgia,serif;white-space:nowrap}
.animation-target small,.animation-loss small{color:var(--ink);font-size:15px}
.animation-beta{display:block;width:max-content;max-width:100%;margin:-27px auto 7px;border:2px solid #be6346;border-radius:5px;padding:3px 7px;background:#fff0e9;color:var(--coral);font-size:15px;font-weight:850;white-space:nowrap;box-shadow:0 3px 10px rgba(198,94,65,.1)}
.animation-network-student{margin-top:20px;border-color:#6286a0}
.animation-student{margin-top:24px}
.animation-inference{transition:opacity .4s,box-shadow .4s}
.animation-inference-stack{display:flex;align-items:center;flex-direction:column;gap:7px}
.animation-inference-stack>.animation-node,.animation-step{width:min(100%,210px);min-height:57px}
.animation-step{position:relative;display:flex;align-items:center;justify-content:center;flex-direction:column;border:3px solid #507795;border-radius:9px;background:#edf6f9;padding:9px 10px;text-align:center}
.animation-step strong{color:var(--ink);font-size:17px;line-height:1.15}
.animation-step-one{margin-top:17px;border-color:#287f63;background:#e6f6ed}
.animation-step-one .animation-beta{position:absolute;top:-17px;margin:0}
.animation-step-rest>span{color:var(--ink);font-size:15px;font-weight:750;text-transform:uppercase;letter-spacing:.08em}
.animation-down-arrow{position:relative;height:17px;width:2px;background:#75a9a0}
.animation-down-arrow:after{content:"";position:absolute;left:-4px;bottom:-2px;border-top:7px solid #75a9a0;border-left:5px solid transparent;border-right:5px solid transparent}
.animation-output{display:grid;grid-template-columns:repeat(3,28px);gap:5px;padding:3px}
.animation-output i{display:block;aspect-ratio:1;border-radius:4px;background:#82cb83;transform:scale(.82);transition:transform .45s,opacity .45s;opacity:.48}
.animation-output i:nth-child(2){background:#435584}.animation-output i:nth-child(3){background:#a7d741}.animation-output i:nth-child(4){background:#36a286}.animation-output i:nth-child(5){background:#68c881}.animation-output i:nth-child(6){background:#ccdf51}
.animation-bottomline{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:75px;padding:14px 28px 19px}
.animation-bottomline p{margin:0;max-width:690px;color:var(--ink);font-size:15px;line-height:1.55}
.animation-bottomline a{flex-shrink:0;color:var(--mint-dark);font-size:15px;font-weight:800;text-decoration:none}
.animation-bottomline a:hover{text-decoration:underline}
.method-animation[data-stage="0"] .animation-student,.method-animation[data-stage="0"] .animation-loss,.method-animation[data-stage="0"] .animation-inference{opacity:1}
.method-animation[data-stage="1"] .animation-teacher{opacity:1}
.method-animation[data-stage="1"] .animation-inference{opacity:1}
.method-animation[data-stage="2"] .animation-training{opacity:1}
.method-animation[data-stage="0"] .animation-target,.method-animation[data-stage="1"] .animation-loss,.method-animation[data-stage="2"] .animation-inference{box-shadow:0 0 0 3px rgba(61,174,145,.18)}
.method-animation[data-stage="2"] .animation-output i{opacity:1;transform:scale(1)}
.method-animation.is-playing[data-stage="0"] .animation-teacher .animation-connector:after,.method-animation.is-playing[data-stage="1"] .animation-student .animation-connector:after{opacity:1;animation:reseed-flow-right 1.5s ease-in-out infinite}
.method-animation.is-playing[data-stage="1"] .animation-network-student .animation-beta,.method-animation.is-playing[data-stage="2"] .animation-step-one .animation-beta{animation:reseed-beta-pulse 1.8s ease-in-out infinite}
.method-animation.is-playing[data-stage="2"] .animation-output i{animation:reseed-output 2.2s ease-in-out infinite alternate}
.method-animation.is-playing[data-stage="2"] .animation-output i:nth-child(2){animation-delay:.2s}.method-animation.is-playing[data-stage="2"] .animation-output i:nth-child(3){animation-delay:.4s}.method-animation.is-playing[data-stage="2"] .animation-output i:nth-child(4){animation-delay:.6s}.method-animation.is-playing[data-stage="2"] .animation-output i:nth-child(5){animation-delay:.8s}.method-animation.is-playing[data-stage="2"] .animation-output i:nth-child(6){animation-delay:1s}
@keyframes reseed-flow-right{0%{transform:translateX(0);opacity:0}18%{opacity:1}82%{opacity:1}100%{transform:translateX(19px);opacity:0}}
@keyframes reseed-beta-pulse{0%,100%{box-shadow:0 0 0 0 rgba(238,115,89,.15)}50%{box-shadow:0 0 0 6px rgba(238,115,89,.18)}}
@keyframes reseed-output{from{transform:scale(.75)}to{transform:scale(1.08)}}
@media(max-width:900px){.animation-diagram{grid-template-columns:1fr}.animation-inference-stack{display:grid;grid-template-columns:1fr 15px 1fr 15px 1fr 15px 90px;gap:5px}.animation-inference-stack>.animation-node,.animation-step{width:100%}.animation-step-one{margin-top:0}.animation-down-arrow{height:2px;width:100%}.animation-down-arrow:after{left:auto;right:-2px;top:-4px;bottom:auto;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:7px solid #75a9a0;border-right:0}.animation-output{grid-template-columns:repeat(3,22px);gap:3px}}
@media(max-width:620px){.animation-topline{display:block;padding:20px 17px 15px}.animation-controls{margin-top:15px}.animation-stages{padding:0 17px 15px;gap:5px}.animation-stage{padding:9px 7px;text-align:center;font-size:15px}.animation-stage span{display:block;margin:0 0 2px}.animation-diagram{padding:0 12px}.animation-training,.animation-inference{padding:15px 12px}.animation-flow{grid-template-columns:minmax(0,1fr) 18px minmax(0,1fr) 18px minmax(0,1.2fr);gap:2px}.animation-node{min-height:66px;padding:7px 3px;font-size:15px}.animation-node small,.animation-step small{font-size:15px}.animation-connector:after{width:7px;height:7px;top:-2px}.animation-target strong,.animation-loss strong{font-size:15px;white-space:normal}.animation-target small,.animation-loss small{font-size:15px}.animation-beta{font-size:15px;padding:3px 4px}.animation-inference-stack{grid-template-columns:1fr 12px 1fr 12px 1fr;gap:3px}.animation-inference-stack>.animation-node,.animation-step{min-height:70px}.animation-step strong{font-size:15px}.animation-output{grid-column:1/-1;grid-row:3;justify-content:center;grid-template-columns:repeat(6,24px)}.animation-inference-stack>.animation-down-arrow:nth-last-child(2){grid-column:1/-1;grid-row:2;width:2px;height:14px;margin:auto}.animation-inference-stack>.animation-down-arrow:nth-last-child(2):after{left:-4px;right:auto;top:auto;bottom:-2px;border-top:7px solid #75a9a0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:0}.animation-bottomline{display:block;padding:14px 17px 19px}.animation-bottomline a{display:inline-block;margin-top:10px}}
@media(prefers-reduced-motion:reduce){.method-animation *, .method-animation *:before,.method-animation *:after{animation:none!important;transition:none!important}}

/* Text stays fully legible in every stage; the active panel gets an outline. */
.animation-kicker,.animation-panel-title,.animation-target>span,.animation-loss>span{letter-spacing:.025em;font-weight:700;text-transform:none}
.animation-topline h3{font-family:inherit;font-size:28px;line-height:1.35;letter-spacing:-.015em}
.animation-topline{align-items:flex-start}.animation-controls{flex-wrap:wrap}
.animation-stages{gap:10px}.animation-stage{font-size:16px;line-height:1.5}
.animation-node{font-size:17px;line-height:1.35;min-height:100px}
.animation-node small,.animation-step small{font-size:15px;line-height:1.4;font-weight:500}
.animation-panel-title{font-size:15px;line-height:1.5;flex-wrap:wrap}
.animation-target strong,.animation-loss strong{white-space:normal;overflow-wrap:anywhere;font-size:21px;line-height:1.5;max-width:100%}
.animation-target small,.animation-loss small{font-size:15px;line-height:1.5}
.animation-bottomline p{font-size:17px;line-height:1.7}.animation-bottomline a{font-size:16px}
.animation-step{min-height:100px}.animation-step strong{font-size:20px;line-height:1.35}
.animation-beta{font-size:15px}.animation-step-rest>span{font-size:15px;letter-spacing:0;text-transform:none}
.method-animation[data-stage="0"] .animation-target,.method-animation[data-stage="1"] .animation-loss,.method-animation[data-stage="2"] .animation-inference{box-shadow:0 0 0 3px var(--mint-dark)}
@media(max-width:1050px){.animation-diagram{grid-template-columns:1fr}}
@media(max-width:740px){
 .animation-topline{display:block;padding:22px 18px}.animation-topline h3{font-size:25px}
 .animation-controls{margin-top:16px}.animation-stages{padding-inline:16px;gap:6px}
 .animation-stage{font-size:15px;padding:10px 7px;text-align:center}.animation-stage span{display:block;margin:0 0 3px}
 .animation-diagram{padding-inline:12px}.animation-training,.animation-inference{padding:18px 12px}
 .animation-flow{grid-template-columns:minmax(0,1fr) 15px minmax(0,1fr) 15px minmax(0,1.2fr);gap:3px}
 .animation-node{min-height:125px;font-size:15px;padding:10px 5px}
 .animation-node small,.animation-step small{font-size:15px}
 .animation-target strong,.animation-loss strong{font-size:18px}
 .animation-beta{font-size:15px;padding:4px 5px}.animation-network-student{margin-top:30px}
 .animation-inference-stack{display:grid;grid-template-columns:minmax(0,1fr) 12px minmax(0,1fr) 12px minmax(0,1fr);gap:3px}
 .animation-inference-stack>.animation-node,.animation-step{min-height:128px}
 .animation-step strong{font-size:18px}.animation-step-one{margin-top:18px}
 .animation-output{grid-column:1/-1;grid-row:3;justify-content:center;grid-template-columns:repeat(6,24px)}
 .animation-inference-stack>.animation-down-arrow:nth-last-child(2){grid-column:1/-1;grid-row:2;width:2px;height:14px;margin:auto}
 .animation-inference-stack>.animation-down-arrow:nth-last-child(2):after{left:-4px;right:auto;top:auto;bottom:-2px;border-top:7px solid #75a9a0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:0}
 .animation-bottomline{display:block;padding:18px}.animation-bottomline a{display:inline-block;margin-top:12px}
}
@media(max-width:380px){
 .animation-flow{grid-template-columns:1fr;gap:10px}
 .animation-flow .animation-node{min-height:80px}
 .animation-connector{width:2px;height:20px;justify-self:center}
 .animation-connector:before{left:-4px;right:auto;top:auto;bottom:-2px;border-left:5px solid transparent;border-right:5px solid transparent;border-top:7px solid #75a9a0;border-bottom:0}
 .animation-connector:after{display:none}
 .animation-inference-stack{display:flex;flex-direction:column;gap:12px}
 .animation-inference-stack>.animation-node,.animation-step{width:100%;min-height:90px}
 .animation-down-arrow,.animation-inference-stack>.animation-down-arrow:nth-last-child(2){width:2px;height:20px;margin-inline:auto}
 .animation-down-arrow:after{left:-4px;right:auto;top:auto;bottom:-2px;border-top:7px solid #75a9a0;border-left:5px solid transparent;border-right:5px solid transparent;border-bottom:0}
 .animation-output{grid-template-columns:repeat(6,24px)}
}

/* Use the same emphasis for bias adaptation during training and inference. */
.animation-network-student .animation-beta,.animation-step-one .animation-beta{max-width:none;align-self:center;font-size:24px;line-height:1.2;padding:7px 12px;border-width:3px;border-radius:7px;flex-shrink:0}
.animation-network-student .animation-beta{margin:-38px 0 10px}
.animation-step-one .animation-beta{top:-28px;margin:0}
@media(min-width:741px) and (max-width:900px){.animation-inference-stack{padding-top:18px}}
@media(max-width:740px){.animation-network-student .animation-beta,.animation-step-one .animation-beta{font-size:20px;padding:6px 9px}.animation-network-student .animation-beta{margin-top:-34px}.animation-step-one .animation-beta{top:-23px}}