:root{font-family:Inter,"Microsoft YaHei","PingFang SC",sans-serif;color:#173c3b;background:#f5f6f0;font-synthesis:none;--green:#216458;--line:#dce3da;--muted:#637771}*{box-sizing:border-box}body{margin:0}button,select,input{font:inherit}button{cursor:pointer;border:1px solid var(--line);background:#fff;color:inherit;border-radius:9px;padding:10px 13px;min-height:42px;transition:background .15s,border .15s}button:hover{background:#e9eee6;border-color:#a6b7a9}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid #de9b55;outline-offset:3px}button:disabled{opacity:.4;cursor:default}.primary{color:#fff;background:var(--green);border-color:var(--green)}.primary:hover{background:#174a41}.app{max-width:1880px;margin:auto;padding:0 32px}header{height:88px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}a{color:var(--green)}.brand{text-decoration:none;display:flex;gap:12px;align-items:center;font-size:22px;font-weight:700;letter-spacing:2px}.brand-mark{font-size:38px;color:#437b63;font-weight:400}.brand small{display:block;font-size:9px;letter-spacing:2px;margin-top:5px;font-weight:500}.top-meta{display:flex;gap:14px;align-items:center;font-size:13px}.top-meta>span{color:var(--muted);margin-right:14px}.top-meta button{background:transparent}main{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:26px;padding:25px 0 14px}.intro{display:flex;align-items:end;justify-content:space-between;gap:16px;margin-bottom:20px}.eyebrow{font-size:11px;font-weight:600;letter-spacing:1.6px;color:#738578;margin:0 0 10px}h1{font-size:28px;letter-spacing:-.8px;margin:0;font-weight:600}.mode-tabs{display:flex;padding:4px;background:#e7ebe2;border-radius:11px;flex-shrink:0}.mode-tabs button{border:0;background:transparent;font-size:13px;min-height:37px;padding:8px 12px}.mode-tabs [aria-selected=true]{background:#fff;box-shadow:0 2px 8px #1b453414;color:#1d5849}.stage{height:clamp(360px,57vh,740px);background:radial-gradient(ellipse at 50% 42%,#273e43,#101f27 82%);border-radius:18px;position:relative;overflow:hidden;isolation:isolate}.stage canvas{display:block;width:100%;height:100%;touch-action:none;outline:none}.stage-tag{position:absolute;left:22px;top:22px;color:#cadbd8;display:flex;gap:9px;align-items:center;font-size:13px}.live-dot{width:6px;height:6px;border-radius:50%;background:#87cbb0}.stage-actions{position:absolute;right:16px;top:14px;display:flex;gap:7px}.stage-actions button{background:#152b32bb;border-color:#50707170;color:#d8e7e0;font-size:12px}.legend{position:absolute;left:22px;bottom:48px;display:flex;gap:15px;font-size:12px;color:#d0dcd9;pointer-events:none}.legend i{display:inline-block;width:7px;height:7px;margin-right:6px;border-radius:50%}.gesture{position:absolute;left:22px;bottom:21px;font-size:11px;color:#859c9d;pointer-events:none}#stage-note{position:absolute;right:19px;bottom:21px;max-width:45%;text-align:right;color:#94aaa7;font-size:11px;pointer-events:none}.loading{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;color:#deece6;background:#15252e;z-index:5}.loading[hidden]{display:none}aside{padding-top:5px;display:flex;flex-direction:column;gap:17px}.observation{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}h2{font-size:22px;line-height:1.5;margin:0 0 12px;font-weight:600}#card-body{font-size:14px;line-height:1.9;color:#59716c;margin:0 0 18px}.structure-list{border-top:1px solid var(--line)}.structure-list button{display:flex;align-items:center;text-align:left;gap:12px;border:0;border-bottom:1px solid var(--line);border-radius:0;width:100%;padding:13px 2px;background:transparent}.structure-list span{color:#92a48e;font-size:12px}.structure-list b{margin-left:auto;font-weight:400}.subtle{font-size:12px;line-height:1.8;color:var(--muted)}.wide{width:100%;margin-top:10px}.wide span{float:right}.thinking{border-left:2px solid #a3b58c;padding:3px 0 3px 18px}.thinking h3{font-size:16px;line-height:1.7;margin:0 0 11px;font-weight:500}.answers{display:flex;gap:8px}.answers button{font-size:12px;min-height:34px;padding:7px 12px}.answers button.selected{background:#dce9d8;border-color:#72916e}#feedback{font-size:12px;color:#657b71;line-height:1.7;min-height:40px;margin:12px 0 0}.credit{font-size:11px;line-height:1.8;color:#789084;margin:0}.transport{background:#fff;border-radius:14px;padding:14px 19px;margin-top:14px;border:1px solid var(--line)}[hidden]{display:none!important}.timeline-head{display:flex;justify-content:space-between;font-size:11px;color:var(--muted);margin-bottom:6px}#time-label{color:#2d6050;font-weight:600}input[type=range]{width:100%;accent-color:#317f69;margin:7px 0 14px;height:14px;cursor:pointer}.transport-row{display:flex;align-items:center;justify-content:space-between}.play-actions{display:flex;gap:7px}.play-actions button{font-size:12px;padding:7px 12px;min-height:35px}.speed-label{font-size:12px;color:#63796d;display:flex;gap:6px;align-items:center}.speed-label select{border:1px solid var(--line);padding:6px;border-radius:6px;background:#fff;color:#335e50}.phases{display:grid;grid-template-columns:repeat(7,1fr);margin-top:14px;gap:5px}.phases button{border:0;background:#f4f6f1;min-height:34px;padding:7px 3px;font-size:11px;color:#678075}.phases button.active{background:#dfeddf;color:#225c46;font-weight:700}.cell-type{display:flex;background:#f0f3ed;padding:4px;border-radius:9px}.cell-type button{width:50%;border:0;background:transparent;font-size:13px;padding:7px;min-height:34px}.cell-type [aria-pressed=true]{background:#fff;box-shadow:0 1px 5px #19452b15}.toggles{display:flex;flex-wrap:wrap;gap:8px 12px;font-size:12px;line-height:26px}.toggles input{accent-color:var(--green);vertical-align:middle}.metric-heading{margin-top:19px;display:flex;justify-content:space-between;font-size:12px}.metric-heading span{color:var(--muted)}.metrics{display:flex;gap:14px;padding-top:8px}.metrics>div{width:50%;border-top:1px solid var(--line);padding-top:12px}.metrics strong{display:block;font-size:29px;font-weight:500;color:#357860}.metrics span{font-size:10px;color:#6b7d72}.label{position:absolute;border:1px solid #b5d6c445;background:#10292fcc;color:#dceadf;font-size:11px;padding:5px 9px;border-radius:5px;pointer-events:none;white-space:nowrap;transform:translate(-50%,-50%)}footer{display:flex;justify-content:space-between;color:#839589;font-size:10px;border-top:1px solid var(--line);padding:12px 0 14px;letter-spacing:.5px}dialog{border:1px solid #ced9ca;border-radius:18px;padding:32px;max-width:680px;width:calc(100% - 32px);color:#244d43;max-height:85vh}dialog::backdrop{background:#102f3288;backdrop-filter:blur(4px)}dialog p{line-height:1.9;font-size:14px}dialog h3{font-size:16px}.close{float:right;font-size:22px;min-width:42px}details{font-size:12px;color:#61796c;line-height:1.8}body.theater .app{max-width:none}body.theater .stage{height:70vh}body.theater aside{display:none}body.theater main{grid-template-columns:1fr}
@media(min-width:1450px){main{grid-template-columns:minmax(0,1fr) 340px;gap:32px}.app{padding:0 44px}h1{font-size:34px}.observation{padding:25px}#card-body{font-size:15px}.stage{height:62vh}}
@media(max-width:1120px){.app{padding:0 20px}main{grid-template-columns:minmax(0,1fr) 270px;gap:18px}.intro{align-items:start;flex-direction:column;gap:12px}h1{font-size:25px}.observation{padding:17px}h2{font-size:19px}.stage{height:48vh;min-height:345px}.top-meta>span{display:none}}
@media(max-width:760px){.app{padding:0 14px}header{height:72px}.brand{font-size:18px;gap:8px}.brand-mark{font-size:30px}.brand small{font-size:8px}.top-meta{gap:6px}.top-meta button{font-size:11px;padding:7px;min-height:36px}#fullscreen span{display:none}main{display:flex;flex-direction:column;gap:18px;padding-top:19px}.intro{gap:13px;margin-bottom:13px}h1{font-size:24px}.eyebrow{font-size:10px}.mode-tabs{width:100%}.mode-tabs button{flex:1;font-size:12px}.stage{height:53vh;min-height:330px;max-height:520px;border-radius:12px}.stage-tag{left:14px;top:18px;font-size:11px}.stage-actions{right:10px;top:10px;gap:4px}.stage-actions button{font-size:10px;padding:7px;min-height:33px}.gesture{left:14px;font-size:10px;bottom:16px}.legend{left:14px;bottom:42px;gap:10px;font-size:10px}#stage-note{right:12px;bottom:16px;font-size:9px;max-width:35%}.transport{padding:12px 11px}.timeline-head{font-size:10px}.play-actions{gap:4px}.play-actions button{font-size:10px;padding:7px 8px;min-height:39px}.speed-label{font-size:10px}.speed-label select{max-width:55px}.phases{gap:3px}.phases button{font-size:10px;padding:6px 1px;min-height:38px}aside{padding:0;gap:20px}.observation{padding:20px}h2{font-size:22px}#card-body{font-size:14px}.metrics span{font-size:12px}.toggles{gap:18px}.thinking{margin:0 5px 10px}.credit{margin-bottom:6px}.label{font-size:10px;padding:4px 7px}}
@media(min-width:1121px){body.division-mode .stage{height:clamp(330px,calc(100dvh - 390px),640px)}body.division-mode .intro{margin-bottom:14px}body.division-mode .observation{padding:18px 20px}body.division-mode #card-body{font-size:13px;line-height:1.75;margin-bottom:12px}body.division-mode aside{gap:14px}body.division-mode .thinking h3{font-size:14px}body.division-mode h2{font-size:20px}body.division-mode .credit{display:none}}