:root{--ink:#1b402b;--muted:#4d6856;--ground:#edf5eb;--paper:#fbfff7;--tint:#e1eddd;--accent:#c65312;--ease:cubic-bezier(.16,1,.3,1);font-family:"Microsoft YaHei","PingFang SC",Arial,sans-serif;color:var(--ink);background:var(--ground);font-synthesis:none}
*{box-sizing:border-box}
body{margin:0}
button,input,textarea,select{font:inherit}
button,a,input,textarea,select{-webkit-tap-highlight-color:transparent}
button{cursor:pointer}
button,a{touch-action:manipulation}
button{color:inherit}
button:disabled{cursor:default;opacity:.55}
a{color:var(--ink)}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:4px}
button:active:not(:disabled){transform:scale(.98)}
[hidden]{display:none!important}
img,svg{display:block;max-width:100%}
button{transition:background-color .18s,color .18s,transform .18s}
p{line-height:1.75}
h1,h2,h3,p{margin-top:0}
.skip-link{position:fixed;left:16px;top:-80px;z-index:100;background:var(--paper);padding:14px}
.skip-link:focus{top:12px}
.page-shell{position:relative;isolation:isolate;height:100dvh;overflow:hidden}
.farm-scene,.sky-wash{position:absolute;inset:0;pointer-events:none}
.farm-scene{z-index:-2;overflow:hidden}
.sky-clouds{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.sky-wash{z-index:-1;background:linear-gradient(180deg,#eff9ecdd 0%,#eff9ec99 35%,#eff9ec00 70%)} /* taste-skill-ignore: Neutral readability scrim over the user-requested landscape. */
.farm-world{position:absolute;left:50%;bottom:0;width:max(100%,200dvh);height:100%;transform:translateX(-50%)}
.hero-landscape{width:100%;height:100%;object-fit:fill}
.windmill{position:absolute;left:68%;bottom:22%;width:7%;height:24%}
.windmill-tower{position:absolute;bottom:0;left:34%;width:37%;height:86%}
.windmill-rotor{position:absolute;top:-8%;left:9%;width:88%;aspect-ratio:1;animation:rotor-turn 16s linear infinite;transform-origin:50% 50%}
.windmill-rotor img{width:100%;height:100%}
.cloud{position:absolute;width:clamp(170px,16vw,225px);aspect-ratio:24/13;background:url('/assets/cloud.svg') center/contain no-repeat;opacity:.9;animation:cloud-drift 14s ease-in-out infinite alternate;will-change:transform}
.cloud-one{left:20%;top:16%}
.cloud-two{right:15%;top:18%;animation-duration:22s;animation-delay:-8s;animation-direction:alternate-reverse;scale:.9}
.grass-front{position:absolute;bottom:-2%;left:-2%;width:104%;height:20%;animation:grass-breeze 8s ease-in-out infinite alternate}
.grass-front>svg{width:100%;height:100%}
.cow-herd{position:absolute;left:9%;bottom:15%;width:clamp(450px,49vw,860px);overflow:visible}
.cow{animation:cow-breathe 5.6s ease-in-out infinite}
.cow:nth-of-type(even){animation-name:cow-graze;animation-duration:6.7s}
.leaf-branch{position:absolute;right:-16px;top:-25px;width:clamp(240px,27vw,480px);transform-origin:94% 0;animation:leaf-sway 7s ease-in-out infinite alternate}
.leaf-branch img{width:100%}
.wind-trails{position:absolute;inset:0;width:100%;height:100%;fill:none;stroke:#fff;stroke-width:2.2;stroke-linecap:round;opacity:.52;pointer-events:none}
.wind-trails path{vector-effect:non-scaling-stroke;stroke-dasharray:230 1600;animation:wind-flow 9s linear infinite}
.wind-trails path:nth-child(2){animation-delay:-2.5s;animation-duration:12s}
.wind-trails path:nth-child(3){animation-delay:-5s;animation-duration:10s}
.wind-trails path:nth-child(4){animation-delay:-7.5s;animation-duration:14s}
.wind-trails path:nth-child(5){animation-delay:-10s;animation-duration:11s}
.site-header{height:90px;padding:22px 3%;display:flex;align-items:center;justify-content:space-between;gap:30px;position:relative;z-index:10}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.brand>svg{width:42px;height:42px;fill:none;stroke:var(--ink);stroke-width:1.6}
.brand>span{font-family:Georgia,"Times New Roman",serif;font-weight:700;font-size:29px;letter-spacing:-1px;line-height:1}
.brand small{display:block;font-family:"Microsoft YaHei",sans-serif;font-size:10px;letter-spacing:1px;margin-top:7px}
.desktop-nav{display:flex;gap:clamp(12px,1.7vw,26px);align-items:center;margin-right:12px}
.desktop-nav button{border:0;background:none;padding:12px 0;font-size:16px;font-weight:600;white-space:nowrap;position:relative}
.desktop-nav button:after{content:"";position:absolute;bottom:4px;left:0;right:0;height:2px;background:var(--ink);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.desktop-nav button:hover:after,.desktop-nav button.active:after{transform:scaleX(1)}
.menu-toggle{display:none}
.mobile-menu{position:absolute;top:73px;right:20px;z-index:30;width:200px;padding:10px;background:var(--paper);border-radius:20px;box-shadow:0 18px 50px #173b2930;transform-origin:top right;animation:menu-enter .2s var(--ease)} /* taste-skill-ignore: Shadow belongs to an actual floating menu, modal or status overlay. */
.mobile-menu button{display:block;border:0;width:100%;background:none;text-align:left;padding:13px 14px;border-radius:12px}
.mobile-menu button:hover{background:var(--tint)}
.hero{position:relative;height:calc(100% - 158px)}
.hero-copy{position:absolute;top:50px;left:50%;transform:translateX(-50%);width:calc(100% - 530px);text-align:center}
.hero h1{margin:0 0 22px;line-height:1.15;font-weight:600}
.wordmark{font-family:Georgia,"Times New Roman",serif;font-size:clamp(76px,7.8vw,120px);font-weight:500;letter-spacing:-7px;display:block;margin-bottom:12px}
.chinese{display:block;font-family:"STSong","SimSun",serif;font-size:clamp(28px,3.2vw,52px);letter-spacing:-.04em;white-space:nowrap}
.hero-copy>p{font-size:15px;margin-bottom:24px;line-height:1.7}
.primary,.secondary{border:0;min-height:44px;border-radius:999px;padding:12px 22px;display:inline-flex;gap:18px;align-items:center;justify-content:center;text-decoration:none;font-weight:600;font-size:15px}
.primary{background:var(--accent);color:#fff}
.primary:hover{background:#a84610}
.secondary{background:var(--tint);color:var(--ink)}
.secondary:hover{background:#cedfc8}
.primary span{transition:transform .22s var(--ease)}
.primary:hover span{transform:translateX(4px)}
.module-column{position:absolute;top:24px;width:clamp(154px,13vw,190px);display:grid;gap:14px}
.column-left{left:3%}
.column-right{right:3%}
.module-card{border:0;border-radius:19px;padding:7px;background:#f9fff4;text-align:left;width:100%;overflow:hidden;transition:transform .35s var(--ease),background .2s;animation:card-arrive .7s var(--ease) both}
.module-card:nth-child(2){animation-delay:.1s}
.module-card:nth-child(3){animation-delay:.2s}
.module-card:hover,.module-card:focus-visible{background:#fff;transform:translateY(-4px)}
.module-picture{display:block;border-radius:13px;position:relative;overflow:hidden;aspect-ratio:16/9;background:#e1efdf}
.module-picture>img{width:100%;height:100%;object-fit:contain;transition:transform .5s var(--ease)}
.module-card:hover .module-picture>img{transform:scale(1.035)}
.module-caption{display:block;padding:10px 7px 7px}
.module-caption strong{display:flex;align-items:center;justify-content:space-between;font-size:17px;font-weight:700;line-height:1.4;margin-bottom:5px}
.module-caption strong>span{font-size:20px;transition:transform .25s var(--ease)}
.module-card:hover .module-caption strong>span{transform:translate(2px,-2px)}
.module-caption>span{font-size:12px;color:#415f4c;line-height:1.5;display:block;white-space:nowrap}
.picture-motion{position:absolute;pointer-events:none}
.knowledge-motion{width:7px;height:7px;left:47%;top:25%;border-radius:50%;background:#fff8d8;animation:knowledge-link 4s ease-in-out infinite}
.tutor-motion{width:6px;height:6px;left:63%;top:52%;border-radius:50%;background:#faffed;animation:tutor-blink 4s infinite}
.lab-motion{height:57%;width:2px;top:20%;left:43%;background:#db7645;opacity:.55;animation:lab-scan 5s ease-in-out infinite alternate}
.simulation-motion{height:12px;width:12px;right:20%;top:39%;border:2px solid #487e5e;border-radius:50%;animation:sensor-signal 3s ease-out infinite}
.learning-motion{height:6px;width:6px;left:48%;top:79%;border-radius:50%;background:#e57435;animation:page-mark 5s ease-in-out infinite}
.assessment-motion{height:4px;width:20px;right:9%;bottom:21%;background:#e1efdf;animation:report-reveal 4s ease-in-out infinite}
.landscape-caption{position:absolute;bottom:16px;left:50%;transform:translateX(-50%);text-align:center;width:max-content;max-width:90%;color:#fff}
.landscape-caption p{font-family:"STSong","SimSun",serif;font-size:28px;margin-bottom:5px}
.landscape-caption span{font-size:13px}
.home-footer{position:absolute;bottom:0;left:0;right:0;min-height:68px;padding:14px 3%;display:flex;gap:20px;align-items:center;justify-content:space-between;color:#fff;background:#173d297d;font-size:13px}
.home-footer p{margin:0}
.home-footer strong{font-size:22px;font-family:Georgia,serif}
.home-footer>span{font-size:12px}
.motion-paused .farm-scene *,.motion-paused .picture-motion{animation-play-state:paused!important}
.is-hidden .farm-scene *,.is-hidden .picture-motion{animation-play-state:paused!important}
dialog{border:0;padding:0;border-radius:24px;background:var(--paper);color:var(--ink);width:min(1140px,calc(100vw - 48px));height:min(850px,90dvh);max-height:90dvh;overflow:hidden;box-shadow:0 28px 90px #0d261c66} /* taste-skill-ignore: Shadow belongs to an actual floating menu, modal or status overlay. */
dialog::backdrop{background:#10291e99}
dialog[open]{display:flex;flex-direction:column;animation:sheet-enter .26s var(--ease)}
.workspace-header{display:flex;align-items:center;justify-content:space-between;padding:22px 28px 17px;flex:none;background:var(--paper);gap:20px}
.workspace-header>div{display:flex;align-items:baseline;gap:16px}
.workspace-brand{font:700 24px Georgia,serif}
.workspace-header h2{font-size:25px;line-height:1.3;margin:0}
.close-button{border:0;background:var(--tint);width:44px;height:44px;font-size:30px;line-height:1;border-radius:50%;flex:none}
.close-button:hover{background:#cfdfc8}
.workspace-nav{display:flex;gap:6px;background:#e9f1e4;padding:10px 24px;overflow:auto;flex:none;scrollbar-width:thin}
.workspace-nav button{border:0;white-space:nowrap;border-radius:999px;padding:10px 16px;background:transparent;font-size:14px}
.workspace-nav button[aria-current="page"]{background:var(--ink);color:#fff}
.workspace-nav button:hover{background:#d1e1ca}
.workspace-nav button[aria-current="page"]:hover{background:#244f35}
#workspace-content{padding:26px 30px 40px;overflow-y:auto;overscroll-behavior:contain;flex:1;min-height:0;font-size:16px;scroll-behavior:smooth}
.panel-intro{max-width:740px;margin-bottom:24px;color:var(--muted);font-size:16px;line-height:1.8}
.notice{background:#e9efdc;border-radius:14px;padding:14px 18px;font-size:14px;line-height:1.8;margin:16px 0}
.notice.warm{background:#f5eadb}
.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:24px}
input[type="search"],input[type="text"],textarea,select{background:#fff;border:1px solid #9ab29b;border-radius:12px;padding:12px 14px;color:var(--ink);min-height:46px}
input[type="search"]{width:min(430px,100%)}
label{line-height:1.6}
.search-label{display:grid;gap:6px;flex:1}
.small{font-size:13px;color:var(--muted)}
.chapter-list{display:grid;gap:10px}
.chapter-button{border:0;display:grid;grid-template-columns:65px 1fr auto;gap:16px;padding:19px;text-align:left;background:#eaf2e4;border-radius:15px;align-items:center;width:100%}
.chapter-button:hover{background:#ddebd5}
.chapter-num{font-size:14px;color:#4a6751}
.chapter-button strong{display:block;font-size:17px;margin-bottom:6px}
.chapter-button p{margin:0;font-size:14px;color:var(--muted)}
.chapter-status{font-size:12px;background:#fffdf1;padding:7px 10px;border-radius:999px;white-space:nowrap}
.chapter-button.is-read .chapter-status{background:#cce6c6}
.reader-head{display:flex;gap:14px;justify-content:space-between;flex-wrap:wrap;margin-bottom:20px}
.reader{max-width:800px;margin:auto}
.reader h3{font-size:24px;margin:26px 0 18px}
.reader h4{font-size:19px;margin:32px 0 12px}
.reader p{line-height:1.95;margin:0 0 18px;color:#203e2c;overflow-wrap:anywhere}
.reader .source{font-size:13px;color:var(--muted)}
.reader details{background:#eaf2e4;border-radius:12px;padding:14px 18px;margin-bottom:20px}
.reader summary{cursor:pointer;min-height:32px}
.reader details a{display:block;padding:7px 0;line-height:1.6}
.learning-objectives{margin:16px 0 24px;padding-left:22px;line-height:1.9}
.practice-link{margin:20px 0}
.empty-state{padding:28px;background:#eaf2e4;border-radius:16px}
.empty-state p{margin:6px 0 18px}
.suggestions{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}
.suggestions button{background:#e6efdf;border:0;border-radius:999px;padding:10px 15px;font-size:14px}
.chat-log{display:grid;gap:16px;margin:20px 0}
.chat-message{background:#eaf2e4;border-radius:16px;padding:18px 20px;max-width:95%;overflow-wrap:anywhere}
.chat-message.user{background:#d6e7cc;margin-left:auto}
.chat-message p{margin-bottom:12px}
.chat-message p:last-child{margin:0}
.chat-source{background:#fbfff7;border-radius:12px;padding:16px;margin:12px 0}
.chat-source blockquote{margin:8px 0 12px;font-size:15px;line-height:1.9}
.text-button{border:0;background:none;text-decoration:underline;text-underline-offset:4px;padding:8px 0;min-height:40px;font-size:14px}
.chat-form{display:flex;gap:12px;align-items:flex-end;position:sticky;bottom:-40px;background:var(--paper);padding:16px 0 25px}
.chat-form label{display:grid;gap:6px;flex:1}
.chat-form input{width:100%}
.two-column{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start}
.surface{background:#eaf2e4;padding:22px;border-radius:17px}
.surface h3{font-size:21px;margin-bottom:15px}
.surface p:last-child{margin-bottom:0}
.control-label{display:flex;justify-content:space-between;gap:15px;font-size:16px;font-weight:600}
.range-control{width:100%;accent-color:var(--accent);margin:20px 0;min-height:28px}
.lab-chart{width:100%;height:auto;background:#fffdf2;border-radius:12px;margin-bottom:16px}
.metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.metric{background:#dcead5;padding:14px;border-radius:12px}
.metric strong{display:block;font-size:25px;margin-bottom:5px}
.metric span{font-size:13px}
.matrix{width:100%;border-collapse:separate;border-spacing:5px;font-size:14px}
.matrix th{font-weight:500;padding:7px;text-align:center}
.matrix td{background:#d9e8d0;text-align:center;padding:16px;border-radius:9px;font-size:22px}
.matrix td.error-cell{background:#f2dcc9}
.metric-caption{font-size:13px;line-height:1.7;color:var(--muted)}
.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}
.scenario-select{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:22px}
.scenario-select button{border:0;border-radius:999px;background:var(--tint);padding:12px 18px}
.scenario-select button[aria-pressed="true"]{background:var(--ink);color:#fff}
.scenario-banner{display:grid;grid-template-columns:130px 1fr;align-items:center;gap:22px;background:#dcebd6;border-radius:18px;padding:20px;margin-bottom:20px}
.scenario-banner img{width:130px;border-radius:12px}
.scenario-banner h3{margin:0 0 8px;font-size:22px}
.scenario-banner p{margin:0;font-size:15px}
.progress-track{height:8px;background:#d8e5d1;border-radius:9px;overflow:hidden;margin:16px 0 24px}
.progress-track span{display:block;height:100%;background:#5c9262;transition:width .3s}
.choice-list{display:grid;gap:10px;margin:20px 0}
.choice{border:0;background:#e6efdf;border-radius:13px;padding:16px 20px;text-align:left;font-size:16px;line-height:1.7}
.choice:not(:disabled):hover{background:#d6e6cd}
.choice.chosen{background:#ccdfbd}
.feedback{background:#e1edda;padding:18px;border-radius:14px;line-height:1.8}
.feedback strong{display:block;margin-bottom:5px}
.feedback p{margin:0}
.study-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0 28px}
.study-stats>div{background:#e1edda;border-radius:16px;padding:18px}
.study-stats strong{display:block;font-size:30px;margin-bottom:8px}
.study-stats span{font-size:14px}
.notes-label{display:grid;gap:9px}
.notes-label textarea{width:100%;min-height:180px;resize:vertical;line-height:1.8}
.record-list{margin:0;padding:0;list-style:none}
.record-list li{padding:14px 0;line-height:1.7}
.record-list time{display:block;font-size:12px;color:var(--muted)}
.question{border:0;background:#eaf2e4;border-radius:16px;margin:0 0 16px;padding:20px;min-width:0}
.question legend{float:left;width:100%;font-weight:600;line-height:1.7;margin-bottom:10px}
.question .answer-options{clear:both;display:grid;gap:6px}
.answer-options label{display:flex;gap:10px;padding:10px;border-radius:9px;font-size:15px;cursor:pointer;align-items:flex-start}
.answer-options label:hover{background:#dce9d4}
.answer-options input{accent-color:var(--ink);width:18px;height:18px;flex:none;margin-top:3px}
.question .explanation{margin:14px 0 0;padding:12px;background:#f9fff4;border-radius:9px;line-height:1.8;font-size:14px}
.result-summary{background:#dcebd6;border-radius:18px;padding:24px;margin-bottom:25px}
.result-summary strong{font-size:36px}
.source-links{line-height:1.9}
.source-links a{overflow-wrap:anywhere}
.toast{position:fixed;z-index:100;bottom:24px;left:50%;transform:translateX(-50%);padding:13px 22px;background:var(--ink);color:#fff;border-radius:14px;max-width:90%;box-shadow:0 8px 28px #16371d33} /* taste-skill-ignore: Shadow belongs to an actual floating menu, modal or status overlay. */
.noscript{position:fixed;z-index:50;bottom:0;background:#fff;padding:20px;width:100%;margin:0}
@keyframes rotor-turn{to{transform:rotate(360deg)}
}
@keyframes cloud-drift{from{transform:translate3d(-72px,10px,0) scale(.97)}
to{transform:translate3d(78px,-12px,0) scale(1.03)}
}
@keyframes leaf-sway{from{transform:rotate(-1deg)}
to{transform:rotate(2deg)}
}
@keyframes grass-breeze{to{transform:translateX(4px) skewX(.4deg)}
}
@keyframes cow-breathe{0%,100%{transform:scaleY(1) rotate(0)}
50%{transform:scaleY(1.016) rotate(.35deg)}
}
@keyframes cow-graze{0%,100%{transform:rotate(-.3deg)}
50%{transform:rotate(.6deg) scaleY(.99)}
}
@keyframes wind-flow{from{stroke-dashoffset:1830;opacity:0}
12%,82%{opacity:.72}
to{stroke-dashoffset:0;opacity:0}
}
@keyframes knowledge-link{0%,100%{transform:translate(0,0);opacity:.4}
50%{transform:translate(28px,-12px);opacity:1}
}
@keyframes tutor-blink{0%,44%,50%,100%{scale:1}
47%{scale:1 .1}
}
@keyframes lab-scan{to{transform:translateX(66px)}
}
@keyframes sensor-signal{from{transform:scale(.4);opacity:.8}
to{transform:scale(2.3);opacity:0}
}
@keyframes page-mark{0%,100%{opacity:.3}
50%{opacity:1}
}
@keyframes report-reveal{0%,100%{transform:translateY(0)}
50%{transform:translateY(-12px)}
}
@keyframes card-arrive{from{opacity:0;translate:0 14px}
to{opacity:1;translate:0 0}
}
@keyframes menu-enter{from{opacity:0;transform:translateY(-5px) scale(.98)}
to{opacity:1;transform:none}
}
@keyframes sheet-enter{from{opacity:0;transform:translateY(10px) scale(.98)}
to{opacity:1;transform:none}
}
@media(min-width:1500px){.hero-copy{top:65px}
.module-column{top:30px}
.module-card{padding:10px}
.module-caption{padding:13px 8px 10px}
.module-caption strong{font-size:20px}
.module-caption>span{font-size:13px}
}
@media(max-width:1100px){.desktop-nav{display:none}
.menu-toggle{display:flex;align-items:center;justify-content:center;flex-direction:column;gap:6px;width:44px;height:44px;border:0;border-radius:50%;background:#edf7e9}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink)}
.hero-copy{width:calc(100% - 440px);top:45px}
.wordmark{font-size:80px}
.chinese{font-size:28px}
.hero-copy>p{font-size:14px}
.module-column{width:160px}
.module-caption>span{font-size:11px}
.module-caption strong{font-size:16px}
.module-column{gap:14px}
.site-header{padding:18px 24px}
.leaf-branch{width:300px}
}
@media(max-width:800px){.hero{height:calc(100% - 143px)}
.site-header{height:78px}
.hero-copy{top:16px;width:calc(100% - 34px)}
.hero-copy h1{margin-bottom:16px}
.wordmark{font-size:76px;letter-spacing:-4px;margin-bottom:8px}
.chinese{font-size:clamp(26px,5.2vw,36px)}
.hero-copy>p{font-size:14px;margin-bottom:18px}
.module-column{top:24px;width:min(160px,calc(50% - 32px));gap:10px}
.column-left{left:24px}
.column-right{right:24px}
.module-card{padding:6px}
.module-caption{padding:7px 5px 5px}
.module-caption strong{font-size:15px;margin-bottom:3px}
.module-caption>span{font-size:11px}
.landscape-caption{bottom:0}
.landscape-caption p{font-size:23px}
.farm-world{width:max(100%,200dvh);height:100%}
.windmill{left:59%;bottom:23%}
.cow-herd{bottom:12%;left:8%;width:75%;min-width:400px}
.leaf-branch{width:260px;right:-70px;top:-35px}
.cloud{width:165px;opacity:.67}
.cloud-one{left:3%;top:24%}
.cloud-two{right:3%;top:26%}
.sky-wash{background:linear-gradient(180deg,#edf7e9e8 0%,#edf7e9b0 33%,#edf7e900 65%)} /* taste-skill-ignore: Neutral readability scrim over the user-requested landscape. */
.grass-front{height:18%}
.home-footer{min-height:65px;padding:12px 22px}
.home-footer>span{display:none}
dialog{width:calc(100vw - 24px);height:94dvh;max-height:94dvh;border-radius:20px}
.workspace-header{padding:16px 20px}
.workspace-header h2{font-size:23px}
.workspace-nav{padding:10px 16px}
.workspace-nav button{padding:11px 14px;font-size:13px}
#workspace-content{padding:22px 20px 30px}
.two-column{grid-template-columns:1fr}
.study-stats{grid-template-columns:repeat(2,1fr)}
.chat-form{bottom:-30px}
.chapter-button{grid-template-columns:1fr auto;gap:10px;padding:16px}
.chapter-num{grid-column:1/-1}
.chapter-button strong{font-size:16px}
.chapter-button p{font-size:13px}
.workspace-brand{font-size:21px}
.surface{padding:18px}
}
@media(max-width:480px){.hero{height:calc(100% - 143px)}
.site-header{padding:15px 18px}
.brand>svg{width:36px;height:36px}
.brand>span{font-size:25px}
.hero-copy{top:16px}
.wordmark{font-size:65px}
.hero-copy>p{max-width:300px;margin-left:auto;margin-right:auto;font-size:13px}
.chinese{font-size:clamp(24px,6.8vw,30px)}
.module-column{top:230px;width:min(155px,calc(50% - 30px));gap:8px}
.column-left{left:16px}
.column-right{right:16px}
.module-card{padding:7px;border-radius:18px}
.module-picture{border-radius:12px;aspect-ratio:2.7}
.module-caption{padding:6px 4px 4px}
.module-caption strong{font-size:14px;margin-bottom:2px}
.module-caption>span{font-size:10px;white-space:normal;line-height:1.3}
.landscape-caption{bottom:0}
.landscape-caption p{font-size:21px}
.landscape-caption>span{font-size:12px}
.cow-herd{bottom:12%;left:-8%;width:110%;min-width:0}
.farm-world{width:max(100%,200dvh);height:100%}
.windmill{left:56%;width:6%;bottom:23%}
.leaf-branch{width:210px;right:-60px;top:-28px}
.cloud{width:140px;opacity:.55}
.cloud-one{left:-5%;top:25%}
.cloud-two{right:-5%;top:27%}
.home-footer{font-size:11px;gap:8px;padding:12px 16px}
.home-footer strong{font-size:18px}
.workspace-header{padding:14px}
.workspace-header>div{gap:10px}
.workspace-header h2{font-size:21px}
.workspace-nav{padding:8px 12px;gap:2px}
.workspace-nav button{padding:11px 12px}
#workspace-content{padding:20px 16px 24px}
.chapter-status{font-size:11px;padding:6px 8px}
.scenario-banner{grid-template-columns:1fr}
.scenario-banner img{width:100px}
.scenario-banner h3{font-size:20px}
.chat-form{gap:8px;bottom:-24px;flex-wrap:wrap}
.chat-form label{min-width:200px}
.chat-form button{width:100%}
.metric-row{gap:6px}
.metric{padding:12px 9px}
.metric strong{font-size:23px}
.metric span{font-size:12px}
.reader h3{font-size:22px}
.reader h4{font-size:18px}
.study-stats>div{padding:16px}
.question{padding:15px}
.question legend{font-size:16px}
.answer-options label{font-size:14px;padding:10px 5px}
}
@media (min-width:481px) and (max-width:650px){.module-column{top:195px;width:150px}
.module-caption strong{font-size:14px}
.module-caption>span{font-size:10px}
}
@media (max-height:760px){.site-header{height:68px;padding-top:10px;padding-bottom:10px}
.hero{height:calc(100% - 118px)}
.hero-copy{top:10px}
.wordmark{font-size:clamp(54px,8vh,76px);margin-bottom:4px}
.hero h1{margin-bottom:10px}
.hero-copy>p{margin-bottom:10px}
.module-column{top:18px;width:140px;gap:7px}
.module-card{padding:5px}
.module-caption{padding:5px 4px 4px}
.module-caption strong{font-size:14px;margin-bottom:2px}
.module-caption>span{font-size:10px}
.landscape-caption{bottom:5px}
.landscape-caption p{font-size:20px}
.home-footer{min-height:50px;padding-top:5px;padding-bottom:5px}
}
@media (max-height:760px) and (min-width:481px) and (max-width:800px){.module-column{top:145px;width:128px}
.module-picture{aspect-ratio:2.4}
}
@media (max-height:760px) and (max-width:480px){.module-column{top:165px;width:calc(50% - 16px);gap:5px}
.column-left{left:8px}
.column-right{right:8px}
.module-card{display:flex;align-items:center;min-height:59px;padding:5px;border-radius:12px}
.module-picture{flex:none;width:42px;height:42px;aspect-ratio:1;border-radius:8px}
.module-caption{padding:2px 0 2px 5px;min-width:0}
.module-caption strong{font-size:12px;line-height:1.2}
.module-caption strong>span{font-size:13px}
.module-caption>span{font-size:9px;line-height:1.2}
.landscape-caption p{font-size:17px}
.landscape-caption>span{font-size:10px}
}
@media (max-height:600px) and (max-width:480px){.site-header{height:60px}
.hero{height:calc(100% - 104px)}
.hero-copy{top:4px}
.wordmark{font-size:44px;margin-bottom:2px}
.chinese{font-size:20px}
.hero h1{margin-bottom:6px}
.hero-copy>p{font-size:11px;line-height:1.3;margin-bottom:6px}
.primary{min-height:34px;padding:7px 14px;font-size:12px}
.home-footer{min-height:44px}
}
.hero-copy{top:18px;width:min(1040px,calc(100% - 64px))}
.hero h1{margin-bottom:16px}
.wordmark{font-size:clamp(64px,7vw,92px);margin-bottom:4px}
.chinese{font-size:clamp(26px,2.7vw,38px)}
.module-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px;align-items:stretch}
.module-grid .module-card{padding:6px;transform-origin:50% 100%;animation:book-pop .72s var(--ease) both}
.module-grid .module-card:nth-child(1){--book-tilt:-5deg;animation-delay:.04s}
.module-grid .module-card:nth-child(2){--book-tilt:4deg;animation-delay:.11s}
.module-grid .module-card:nth-child(3){--book-tilt:-3deg;animation-delay:.18s}
.module-grid .module-card:nth-child(4){--book-tilt:3deg;animation-delay:.25s}
.module-grid .module-card:nth-child(5){--book-tilt:-4deg;animation-delay:.32s}
.module-grid .module-card:nth-child(6){--book-tilt:5deg;animation-delay:.39s}
.module-grid .module-caption{padding:8px 5px 5px}
.module-grid .module-caption strong{font-size:15px;margin-bottom:3px}
.module-grid .module-caption>span{font-size:10.5px;line-height:1.35;white-space:normal}
.course-cta{margin-top:16px}
@keyframes book-pop{0%{opacity:0;transform:translateY(38px) scale(.78) rotate(var(--book-tilt))}62%{opacity:1;transform:translateY(-9px) scale(1.035) rotate(calc(var(--book-tilt) * -.18))}82%{transform:translateY(4px) scale(.985) rotate(0)}100%{opacity:1;transform:translateY(0) scale(1) rotate(0)}}
@media(max-width:900px){.hero-copy{top:12px;width:calc(100% - 32px)}
.wordmark{font-size:64px}
.chinese{font-size:28px}
.module-grid{grid-template-columns:repeat(3,minmax(0,160px));justify-content:center;gap:8px 10px}
.module-grid .module-picture{aspect-ratio:2.35}
.module-grid .module-caption{padding:5px 4px 4px}
.module-grid .module-caption strong{font-size:14px}
.course-cta{margin-top:10px}
}
@media(max-width:480px){.hero-copy{top:8px;width:calc(100% - 20px)}
.wordmark{font-size:48px}
.chinese{font-size:23px}
.hero h1{margin-bottom:9px}
.module-grid{grid-template-columns:repeat(2,minmax(0,155px));gap:6px 8px}
.module-grid .module-card{padding:5px;border-radius:13px}
.module-grid .module-picture{aspect-ratio:2.7}
.module-grid .module-caption{padding:4px 3px 3px}
.module-grid .module-caption strong{font-size:12px}
.module-grid .module-caption>span{font-size:9px;line-height:1.2}
.course-cta{margin-top:8px}
}
@media(max-height:760px){.hero-copy{top:5px}
.wordmark{font-size:52px}
.chinese{font-size:24px}
.hero h1{margin-bottom:7px}
.module-grid .module-picture{aspect-ratio:2.8}
.module-grid .module-caption{padding:4px 3px 3px}
.course-cta{min-height:36px;margin-top:7px;padding:8px 17px;font-size:13px}
}
dialog#workspace{position:fixed;inset:0;margin:0;width:100vw;height:100dvh;max-width:none;max-height:none;border-radius:0;box-shadow:none;background:#f7fbf3}
dialog#workspace::backdrop{background:transparent}
dialog#workspace[open]{animation:workspace-enter .32s var(--ease)}
.workspace-header{height:76px;padding:14px clamp(20px,3vw,42px);justify-content:flex-start;background:#fbfff7;gap:18px}
.workspace-header>div{align-items:baseline;gap:14px}
.workspace-header h2{font-size:24px}
.workspace-brand{font-size:27px}
.workspace-context{margin-left:auto;color:var(--muted);font-size:13px;letter-spacing:.05em}
.close-button{order:-1;width:46px;height:46px;background:#e8f1e3;font-size:24px}
.workspace-shell{display:grid;grid-template-columns:220px minmax(0,1fr);flex:1;min-height:0}
.workspace-nav{display:flex;flex-direction:column;align-items:stretch;gap:6px;padding:26px 16px;background:#e7f0e2;overflow-y:auto;overflow-x:hidden}
.workspace-nav-label{padding:0 14px 12px;color:var(--muted);font-size:12px;font-weight:700;letter-spacing:.14em}
.workspace-nav button{width:100%;padding:13px 14px;border-radius:12px;text-align:left;font-size:15px;font-weight:600}
#workspace-content{padding:34px clamp(28px,4vw,58px) 60px;background:#f9fcf5}
.panel-intro{max-width:860px;font-size:16px}
@keyframes workspace-enter{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@media(max-width:800px){dialog#workspace{width:100vw;height:100dvh;max-height:none;border-radius:0}
.workspace-header{height:68px;padding:10px 16px;gap:12px}
.workspace-header h2{font-size:20px}
.workspace-brand{font-size:22px}
.workspace-context{display:none}
.close-button{width:42px;height:42px}
.workspace-shell{grid-template-columns:1fr;grid-template-rows:auto minmax(0,1fr)}
.workspace-nav{flex-direction:row;padding:8px 12px;gap:4px;overflow-x:auto;overflow-y:hidden}
.workspace-nav-label{display:none}
.workspace-nav button{width:auto;padding:10px 13px;border-radius:999px;text-align:center;font-size:13px}
.workspace-nav button[aria-current="page"]{box-shadow:none}
#workspace-content{padding:24px 18px 42px}
}
@media(max-width:480px){.workspace-header{padding:9px 12px}
.workspace-header>div{gap:8px}
.workspace-brand{font-size:20px}
.workspace-header h2{font-size:18px}
.workspace-nav{padding:7px 9px}
.workspace-nav button{padding:9px 11px;font-size:12px}
#workspace-content{padding:20px 14px 36px}
}
dialog#workspace{--module-ink:#163f3a;--module-muted:#466861;--module-accent:#176b60;--module-tone:#9ce8d9;background:#eef9f5;color:var(--module-ink)}
dialog#workspace[data-module="knowledge"]{--module-ink:#16483e;--module-muted:#416b62;--module-accent:#137b68;--module-tone:#8de8d5;--module-image:url('/pic/课程知识.png')}
dialog#workspace[data-module="tutor"]{--module-ink:#123f62;--module-muted:#41677f;--module-accent:#176b9b;--module-tone:#8dcde9;--module-image:url('/pic/AI导师.png')}
dialog#workspace[data-module="lab"]{--module-ink:#63341d;--module-muted:#775542;--module-accent:#b14e17;--module-tone:#ffc18f;--module-image:url('/pic/交互实验.png')}
dialog#workspace[data-module="simulation"]{--module-ink:#3f315f;--module-muted:#64547d;--module-accent:#7355aa;--module-tone:#c7b5ed;--module-image:url('/pic/虚拟仿真.png')}
dialog#workspace[data-module="learning"]{--module-ink:#653346;--module-muted:#7c5865;--module-accent:#ad496f;--module-tone:#f1b8c9;--module-image:url('/pic/个人学堂.png')}
dialog#workspace[data-module="assessment"]{--module-ink:#17494a;--module-muted:#4b6c69;--module-accent:#d76548;--module-tone:#9eddd9;--module-image:url('/pic/测试评价.png')}
dialog#workspace .workspace-header{height:82px;padding:12px clamp(18px,2.6vw,38px);gap:22px;border:0;background:#fbfff7;color:var(--module-ink)}
dialog#workspace .workspace-header{color:#17494a}
dialog#workspace .workspace-header .workspace-home.close-button,dialog#workspace .workspace-header .workspace-top-nav button{color:#17494a}
dialog#workspace .workspace-header .workspace-top-nav button::after{background:#16868a}
.workspace-home.close-button{display:flex;align-items:center;gap:9px;order:0;width:auto;height:auto;padding:0;border:0;border-radius:0;background:transparent;text-align:left;color:var(--module-ink)}
.workspace-home.close-button svg{width:42px;height:42px;fill:none;stroke:currentColor;stroke-width:1.6;flex:none}
.workspace-home.close-button>span{font:700 28px/1 Georgia,"Times New Roman",serif}
.workspace-home.close-button small{display:block;margin-top:6px;font:10px/1.1 "Microsoft YaHei",sans-serif;letter-spacing:.08em}
dialog#workspace .workspace-header h2{margin:0;font:500 25px/1.1 "Microsoft YaHei",sans-serif;white-space:nowrap}
dialog#workspace .workspace-header h2:focus{outline:none}
.workspace-top-nav{display:flex;align-items:center;gap:clamp(10px,1.5vw,22px);margin-left:auto}
.workspace-top-nav button{position:relative;border:0;background:transparent;padding:12px 0;color:var(--module-ink);font-size:15px;font-weight:600;white-space:nowrap}
.workspace-top-nav button::after{content:"";position:absolute;left:0;right:0;bottom:5px;height:3px;background:var(--module-accent);transform:scaleX(0);transform-origin:left;transition:transform .2s var(--ease)}
.workspace-top-nav button:hover::after,.workspace-top-nav button[aria-current="page"]::after{transform:scaleX(1)}
dialog#workspace .workspace-shell{position:relative;display:block;flex:1;min-height:0;overflow:hidden;background:#edf7f3}
dialog#workspace .workspace-shell::before{content:"";position:absolute;inset:0;background-image:var(--module-image);background-position:center;background-size:cover;background-repeat:no-repeat;transform-origin:right center}
dialog#workspace #workspace-content{position:relative;z-index:1;width:100%;height:100%;padding:38px clamp(26px,4vw,60px) 64px;background:transparent;color:var(--module-ink);font-size:16px;scrollbar-width:thin;scrollbar-color:color-mix(in srgb,var(--module-accent) 42%,transparent) transparent}
dialog#workspace #workspace-content>*{max-width:none}
dialog#workspace #workspace-content::-webkit-scrollbar{width:6px}
dialog#workspace #workspace-content::-webkit-scrollbar-track{background:transparent}
dialog#workspace #workspace-content::-webkit-scrollbar-thumb{background:color-mix(in srgb,var(--module-accent) 42%,transparent);border-radius:999px}
dialog#workspace #workspace-content::-webkit-scrollbar-thumb:hover{background:color-mix(in srgb,var(--module-accent) 68%,transparent)}
dialog#workspace #workspace-content::-webkit-scrollbar-button{display:none;width:0;height:0}
.module-intro{margin-bottom:30px}
.module-intro h3{max-width:12ch;margin:0 0 12px;font:500 clamp(36px,4vw,58px)/1.05 "Microsoft YaHei",sans-serif;letter-spacing:-.04em;color:var(--module-ink)}
dialog#workspace .panel-intro{max-width:62ch;margin:0;color:var(--module-ink);font-size:18px;line-height:1.6}
dialog#workspace .surface,dialog#workspace .chapter-button,dialog#workspace .notice,dialog#workspace .result-summary,dialog#workspace .scenario-banner,dialog#workspace .question{border-radius:0;background:color-mix(in srgb,var(--module-tone) 22%,#fff)}
dialog#workspace .search-label input,dialog#workspace input,dialog#workspace textarea{background:#ffffffd9}
dialog#workspace .primary{background:var(--module-accent)}
dialog#workspace .primary:hover{background:color-mix(in srgb,var(--module-accent) 82%,#000)}
dialog#workspace .secondary{background:color-mix(in srgb,var(--module-tone) 32%,#fff);color:var(--module-ink)}
dialog#workspace .text-button,dialog#workspace a{color:var(--module-accent)}
dialog#workspace .chapter-button:hover,dialog#workspace .chapter-button:focus-visible{background:color-mix(in srgb,var(--module-tone) 36%,#fff)}
dialog#workspace .workspace-nav{display:none}
dialog#workspace #workspace-content[data-view="knowledge"]{padding:0;scroll-snap-type:y mandatory;scroll-padding:0}
#workspace-content[data-view="knowledge"]>.knowledge-page{width:100%;max-width:none;min-height:100%;scroll-snap-align:start;scroll-snap-stop:always;display:flex;align-items:center;padding:clamp(28px,4vw,58px) clamp(26px,4vw,60px)}
.knowledge-page-inner{width:min(100%,1380px);margin:auto;display:grid;grid-template-columns:minmax(0,.82fr) minmax(0,1.18fr);gap:28px 42px;align-items:center}
.knowledge-lead h3,.knowledge-group-copy h3{max-width:10ch;margin:0 0 18px;font:500 clamp(42px,5vw,72px)/.98 "Microsoft YaHei",sans-serif;letter-spacing:-.05em}
.knowledge-lead>p,.knowledge-group-copy>p{max-width:34ch;font-size:18px;line-height:1.65}
.knowledge-progress{margin-top:24px;font-weight:700;color:var(--module-accent)}
.knowledge-index{display:grid;gap:8px}
.knowledge-index button{display:grid;grid-template-columns:1fr auto;gap:4px 18px;width:100%;padding:14px 16px;border:0;border-radius:0;background:#ffffffc7;text-align:left;color:var(--module-ink);transition:transform .18s var(--ease),background-color .18s}
.knowledge-index button strong{font-size:18px}
.knowledge-index button span{grid-column:1;font-size:12px;color:var(--module-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.knowledge-index button b{grid-column:2;grid-row:1/3;align-self:center;font-size:22px;font-weight:400}
.knowledge-index button:hover,.knowledge-index button:focus-visible{background:color-mix(in srgb,var(--module-tone) 30%,#fff);transform:translateX(5px)}
.knowledge-search{grid-column:1/-1;display:grid;grid-template-columns:170px minmax(240px,440px);align-items:center;gap:10px 16px}
.knowledge-search label{font-weight:700}
.knowledge-search input{min-height:48px;border:0;border-radius:0;padding:11px 15px;font-size:15px;outline:0}
.knowledge-search input:focus-visible{outline:3px solid var(--module-accent);outline-offset:2px}
#knowledge-search-results{grid-column:2;display:grid;gap:6px;max-height:230px;overflow-y:auto}
#knowledge-search-results[hidden]{display:none}
.knowledge-group-copy ul{margin:28px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.knowledge-group-copy li{position:relative;padding-left:22px;font-size:15px;line-height:1.5}
.knowledge-group-copy li::before{content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;background:var(--module-accent)}
.knowledge-chapters{display:grid;gap:10px}
.knowledge-chapter{display:grid;grid-template-columns:82px 1fr auto;align-items:center;gap:16px;width:100%;min-height:78px;padding:14px 16px;border:0;border-radius:0;background:#ffffffd4;text-align:left;color:var(--module-ink);transition:transform .18s var(--ease),background-color .18s}
.knowledge-chapter>span,.knowledge-chapter>small{font-size:12px;color:var(--module-muted)}
.knowledge-chapter strong{font-size:18px}
.knowledge-chapter:hover,.knowledge-chapter:focus-visible{background:color-mix(in srgb,var(--module-tone) 34%,#fff);transform:translateX(5px)}
.knowledge-chapter.is-read{background:color-mix(in srgb,var(--module-tone) 42%,#fff)}
.knowledge-next{grid-column:2;justify-self:start;border:0;background:transparent;padding:12px 0;color:var(--module-accent);font-weight:700;font-size:14px}
.knowledge-next span{display:inline-block;margin-left:8px;font-size:20px;transition:transform .18s var(--ease)}
.knowledge-next:hover span{transform:translateY(4px)}
.knowledge-hero{position:relative;width:100%;max-width:none!important;min-height:100%;display:grid;grid-template-columns:minmax(280px,1fr) minmax(520px,1.15fr);align-items:center;gap:clamp(28px,3vw,52px);padding:clamp(34px,5vw,72px);overflow:hidden}
.knowledge-hero::before{content:"";position:absolute;width:38vw;height:38vw;left:-15vw;bottom:-20vw;border-radius:50%;background:color-mix(in srgb,var(--module-tone) 14%,transparent);pointer-events:none}
.knowledge-hero-copy{position:relative;z-index:1;max-width:560px}
.resource-label,.resource-header>p{margin:0 0 18px;color:var(--module-accent);font-size:11px;font-weight:800;letter-spacing:.18em}
.knowledge-hero-copy h3{margin:0 0 24px;font:500 clamp(43px,4vw,62px)/1.04 "Microsoft YaHei",sans-serif;letter-spacing:-.055em}
.knowledge-hero-copy>p:not(.resource-eyebrow){max-width:32em;margin:0;color:var(--module-muted);font-size:17px;line-height:1.8}
.knowledge-stats{display:flex;gap:22px;margin-top:34px;padding-top:24px}
.knowledge-stats span{display:flex;align-items:baseline;gap:5px;color:var(--module-muted);font-size:12px}
.knowledge-stats strong{color:var(--module-ink);font:600 25px/1 Georgia,serif}
.resource-grid{position:relative;z-index:1;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.resource-card{position:relative;display:flex;min-height:238px;flex-direction:column;align-items:flex-start;padding:24px;border:0;border-radius:2px;background:#ffffffd6;text-align:left;color:var(--module-ink);overflow:hidden;transition:transform .28s var(--ease),background-color .28s}
.resource-card:nth-child(2),.resource-card:nth-child(3){background:color-mix(in srgb,var(--module-tone) 35%,#fff 65%)}
.resource-card::after{content:"";position:absolute;inset:auto -35px -55px auto;width:130px;height:130px;border-radius:50%;background:color-mix(in srgb,var(--module-tone) 15%,transparent);transition:transform .35s var(--ease)}
.resource-card:hover,.resource-card:focus-visible{z-index:2;transform:translateY(-7px);background:#fff}
.resource-card:hover::after{transform:scale(1.35)}
.resource-icon{display:grid;width:46px;height:46px;place-items:center;margin-bottom:22px;background:var(--module-ink);color:#fff}
.resource-icon svg{width:27px;height:27px;fill:none;stroke:currentColor;stroke-width:1.35;stroke-linecap:round;stroke-linejoin:round}
.resource-number{position:absolute;top:22px;right:22px;color:color-mix(in srgb,var(--module-ink) 34%,transparent);font:600 15px/1 Georgia,serif}
.resource-card small{margin-bottom:7px;color:var(--module-accent);font-size:9px;font-weight:800;letter-spacing:.13em}
.resource-card>strong{font-size:24px;letter-spacing:-.03em}
.resource-card>span:not(.resource-icon):not(.resource-number){margin-top:9px;color:var(--module-muted);font-size:13px;line-height:1.55}
.resource-card>b{display:flex;width:100%;justify-content:space-between;margin-top:auto;padding-top:19px;color:var(--module-ink);font-size:11px;font-weight:600}
.resource-card b i{font-size:20px;font-style:normal;transition:transform .2s}
.resource-card:hover b i{transform:translateX(5px)}
.knowledge-hint{position:absolute;left:50%;bottom:18px;margin:0;transform:translateX(-50%);color:var(--module-muted);font-size:11px;letter-spacing:.08em}
.knowledge-hint span{display:inline-block;margin-right:7px;animation:knowledge-hint 1.7s ease-in-out infinite}
@keyframes knowledge-hint{50%{transform:translateY(5px)}}
dialog#workspace #workspace-content[data-view="knowledge-resource"]{padding:0}
#workspace-content[data-view="knowledge-resource"]>.resource-page{width:min(1500px,calc(100% - 48px));max-width:none;min-height:calc(100% - 48px);margin:24px auto;padding:34px clamp(30px,5vw,76px) 70px}
.resource-page{position:relative;background:#fafff5e3}
.resource-back{display:inline-flex;align-items:center;min-height:48px;border:0;background:var(--module-accent);padding:10px 17px;color:#fff;font-size:17px;font-weight:750;transition:transform .2s ease,background-color .2s ease}
.resource-back:hover,.resource-back:focus-visible{transform:translateX(-4px);background:var(--module-ink)}
.resource-header{display:grid;grid-template-columns:1fr auto;max-width:none;margin:34px 0 38px;padding-bottom:27px}
.resource-header>p{grid-column:1/-1;margin-bottom:10px}
.resource-header h3{grid-column:1;margin:0;font:500 clamp(42px,5vw,66px)/1 "Microsoft YaHei",sans-serif;letter-spacing:-.055em}
.resource-header>span{grid-column:1;max-width:40em;margin-top:15px;color:var(--module-muted);line-height:1.65}
.resource-header>b{grid-column:2;grid-row:2/4;align-self:end;padding:10px 14px;background:color-mix(in srgb,var(--module-tone) 35%,#fff);font-size:12px}
.resource-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px 18px;max-width:none}
.resource-row{display:grid;grid-template-columns:54px 1fr auto;align-items:center;gap:20px;min-height:92px;padding:17px 14px}
.resource-row{background:#ffffffa8}
.resource-row>span{color:var(--module-accent);font:600 18px/1 Georgia,serif}
.resource-row h4{margin:0 0 6px;font-size:17px}
.resource-row p{margin:0;color:var(--module-muted);font-size:13px}
.resource-row>a{padding:9px 13px;background:#fff;font-size:12px;font-weight:700;text-decoration:none}
.resource-row>small{color:var(--module-muted);font-size:12px}
.resource-row.is-pending{opacity:.48}
.resource-row>a{font-size:14px;font-weight:750}
.resource-row>a:hover{background:var(--module-ink);color:#fff!important}
dialog#workspace #workspace-content[data-view="lab-home"]{padding:0;overflow-y:auto}
.lab-hero{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);align-items:center;gap:clamp(28px,5vw,90px);width:100%;min-height:100%;padding:clamp(38px,5vw,80px);isolation:isolate}
.lab-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#fffaf0dd 0%,#fff6e9bb 46%,#fff7e855 100%);z-index:-1}
.lab-hero-copy{max-width:690px}
.lab-eyebrow{display:flex;align-items:center;gap:10px;margin:0 0 22px;color:#99501f;font-size:11px;font-weight:800;letter-spacing:.2em}
.lab-eyebrow span{width:8px;height:8px;border-radius:50%;background:#d65f20;box-shadow:0 0 0 5px #f5c9aa}
.lab-hero-copy h3{margin:0;color:#4b2719;font:500 clamp(40px,4.2vw,72px)/1.13 "Microsoft YaHei",sans-serif;letter-spacing:-.055em}
.lab-hero-copy h3 em{color:#b34d1a;font-style:normal}
.lab-hero-copy>p:not(.lab-eyebrow){max-width:34em;margin:25px 0 0;color:#684c3e;font-size:17px;line-height:1.8}
.lab-hero-actions{display:flex;align-items:center;flex-wrap:wrap;gap:17px;margin-top:35px}
.lab-hero-actions>span{color:#825947;font-size:12px}
.lab-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:clamp(35px,6vh,75px);border-top:1px solid #aa795b66;padding-top:20px}
.lab-steps>div{display:grid;gap:4px}
.lab-steps b{margin-bottom:7px;color:#b34d1a;font:600 17px Georgia,serif}
.lab-steps strong{color:#4b2719;font-size:14px}
.lab-steps small{color:#825947;font-size:11px}
dialog#workspace #workspace-content[data-view="lab-experiment"]{padding:0}
.lab-experiment-page{width:min(1450px,calc(100% - 48px));min-height:calc(100% - 48px);margin:24px auto;padding:32px clamp(24px,4vw,64px) 60px;background:#fffaf1e5}
.lab-experiment-page .module-intro{margin:30px 0}
@media(prefers-reduced-motion:no-preference){dialog#workspace.module-enter .lab-hero-copy{animation:lab-intro-in .55s .08s both}}
@keyframes lab-intro-in{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1000px){.lab-hero{grid-template-columns:1fr;gap:30px}.lab-steps{margin-top:35px}}
@media(max-width:700px){.lab-hero{padding:36px 18px 45px}.lab-hero-copy h3{font-size:41px}.lab-hero-copy>p:not(.lab-eyebrow){font-size:15px}.lab-steps{gap:7px}.lab-steps strong{font-size:12px}.lab-steps small{font-size:10px}.lab-experiment-page{width:calc(100% - 24px);margin:12px auto;padding:22px 18px 48px}}
.lab-catalog-hero{grid-template-columns:minmax(0,.92fr) minmax(460px,1.08fr);gap:clamp(22px,4vw,65px)}
.lab-home-count{display:inline-flex;align-items:baseline!important;gap:5px!important;color:#7f5037!important;font-size:14px!important}
.lab-home-count strong{color:#9d4218;font:600 26px Georgia,serif}
.lab-home-count span{padding:0 5px}
.lab-category-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;align-content:center}
.lab-category-card{position:relative;display:flex;flex-direction:column;align-items:flex-start;min-height:286px;padding:10px 14px 17px;border:1px solid #f1d7bf;border-radius:20px;background:#fffdf5ea;text-align:left;color:#4b2a1b;overflow:hidden;box-shadow:0 12px 35px #9b5b3520;transition:transform .28s var(--ease),background-color .28s,box-shadow .28s}
.lab-category-card:hover,.lab-category-card:focus-visible{transform:translateY(-7px);background:#fff;box-shadow:0 18px 35px #9b5b3530}
.lab-category-art,.lab-project-art{display:grid;place-items:center;width:100%;height:128px;border-radius:15px;background:#e5f1e5;overflow:hidden}
.lab-art-model{background:#f6ecd8}.lab-art-behavior{background:#ddede6}.lab-art-imaging{background:#e3eff1}
.lab-category-art svg{width:100%;height:100%;transition:transform .35s var(--ease)}
.lab-category-card:hover .lab-category-art svg,.lab-project-card:hover .lab-project-art svg{transform:translateY(-4px) rotate(-2deg) scale(1.04)}
.lab-category-meta{display:flex;align-items:center;justify-content:space-between;gap:5px;width:100%;margin:13px 0 5px}
.lab-category-meta small{color:#9b5d3e;font-size:9px;font-weight:800;letter-spacing:.08em}
.lab-category-meta em{color:#8b6c59;font-size:10px;font-style:normal;white-space:nowrap}
.lab-category-card>strong{font-size:21px;letter-spacing:-.04em}
.lab-category-description{max-width:24em;margin-top:6px;padding-right:14px;color:#785c4c;font-size:11px;line-height:1.5}
.lab-category-arrow{position:absolute;right:15px;bottom:14px;display:grid;width:26px;height:26px;place-items:center;border-radius:50%;background:#a3451b;color:#fff;font-size:17px}
@media(prefers-reduced-motion:no-preference){dialog#workspace.module-enter .lab-category-card{animation:lab-card-enter .62s cubic-bezier(.2,1.35,.35,1) both;animation-delay:calc(.11s + var(--card-index)*.09s)}}
@keyframes lab-card-enter{from{opacity:0;transform:translateY(50px) rotate(-5deg) scale(.87)}to{opacity:1;transform:translateY(0) rotate(0) scale(1)}}
dialog#workspace #workspace-content[data-view="lab-category"]{padding:0}
.lab-category-page{min-height:100%;padding:clamp(28px,4vw,58px) clamp(24px,5vw,74px);background:#fffaf0b8}
.lab-category-heading{position:relative;margin:35px 0 28px;padding-right:190px}
.lab-category-heading p,.lab-task-head p{margin:0 0 12px;color:#a45425;font-size:11px;font-weight:800;letter-spacing:.16em}
.lab-category-heading h3,.lab-task-head h3{margin:0;color:#4b291b;font:500 clamp(40px,4.4vw,70px)/1.1 "Microsoft YaHei",sans-serif;letter-spacing:-.05em}
.lab-category-heading>span,.lab-task-head>span{display:block;max-width:55em;margin-top:13px;color:#765748;font-size:16px;line-height:1.7}
.lab-category-heading>b{position:absolute;right:0;bottom:3px;padding:12px 16px;background:#fff3e3;color:#88421c;font-size:12px}
.lab-project-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,330px),390px));gap:18px}
.lab-project-card{display:flex;flex-direction:column;padding:12px;border:1px solid #edd4bc;border-radius:22px;background:#fffcf4e8;text-align:left;color:#4b291b;transition:transform .28s var(--ease),background-color .28s}
.lab-project-card:hover,.lab-project-card:focus-visible{transform:translateY(-7px);background:#fff}
@media(prefers-reduced-motion:no-preference){.lab-project-card,.lab-empty-category{animation:lab-card-enter .58s cubic-bezier(.2,1.25,.35,1) both}}
.lab-project-art{height:205px}
.lab-project-art svg{width:100%;height:100%;transition:transform .35s var(--ease)}
.lab-project-body{display:grid;gap:9px;padding:17px 9px 11px}
.lab-project-body small{color:#ae592c;font-size:11px;font-weight:800;letter-spacing:.1em}
.lab-project-body strong{font-size:25px}
.lab-project-body>span{color:#755746;font-size:13px;line-height:1.6}
.lab-project-body b{display:flex;justify-content:space-between;align-items:center;margin-top:14px;color:#9d4218;font-size:13px}
.lab-project-body i{font-size:22px;font-style:normal}
.lab-empty-category{display:grid;justify-items:start;gap:10px;max-width:390px;padding:12px 12px 28px;background:#fffcf4cc;border:1px solid #edd4bc}
.lab-empty-category .lab-project-art{height:205px}
.lab-empty-category>strong{padding:8px 12px 0;font-size:21px}
.lab-empty-category>p{margin:0;padding:0 12px;color:#755746;font-size:13px;line-height:1.6}
.lab-category-footnote{margin-top:28px;color:#765748;font-size:12px}
.lab-task-page{background:#fffaf1ed}
.lab-task-head{margin:32px 0 27px}
.lab-task-grid{display:grid;grid-template-columns:minmax(285px,.78fr) minmax(0,1.22fr);gap:18px;align-items:start}
.lab-task-controls,.lab-task-results{padding:23px;background:#fffdf7e8;border:1px solid #eed8c4}
.lab-task-controls h4,.lab-task-results h4{margin:0 0 20px;color:#503022;font-size:22px}
.lab-task-results h4 small{float:right;padding-top:5px;color:#9b6548;font-size:11px}
.lab-task-controls>label:not(.lab-monitor-label):not(.lab-compact-slider){display:grid;grid-template-columns:19px 1fr;gap:2px 10px;margin:0 0 13px;padding:12px;background:#fff3e6;color:#5c3a29;font-size:14px;font-weight:700}
.lab-task-controls>label input{grid-row:1/3;align-self:center;accent-color:#a84e21}
.lab-task-controls>label small{grid-column:2;color:#805d4d;font-size:11px;font-weight:400;line-height:1.5}
.lab-task-controls>p{color:#755746;font-size:13px;line-height:1.7}
.lab-data-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin:22px 0}
.lab-data-summary>div{display:grid;gap:6px;padding:11px;background:#f6e9d9}
.lab-data-summary strong{color:#9d4218;font:600 27px Georgia,serif}
.lab-data-summary span{color:#755746;font-size:11px}
.lab-task-save{width:100%;min-height:48px;border:0;background:#9d4218;color:#fff;font-size:13px;font-weight:750}
.lab-task-save:hover{background:#773417}
.lab-data-table-wrap{overflow:auto}
.lab-data-table{width:100%;border-collapse:collapse;color:#5d3d2c;font-size:12px;white-space:nowrap}
.lab-data-table th{text-align:left;padding:10px;background:#f7e8d8}
.lab-data-table td{padding:10px;border-bottom:1px solid #eadbcf}
.lab-data-table td small{color:#a55124}
.lab-data-table td span{display:inline-block;padding:4px 7px;background:#e1f0e3;color:#315c4e;font-size:11px}
.lab-data-table tr.is-excluded{opacity:.55}
.lab-data-table tr{transition:opacity .22s,background-color .22s}
.lab-data-table tr.is-excluded td span{background:#eadfda;color:#6e5e55}
.lab-data-table tr.is-review td span{background:#ffe1c1;color:#a34c1d}
.lab-task-note{margin:18px 0 0;color:#7d5c4a;font-size:12px;line-height:1.7}
.lab-monitor-label{display:flex;justify-content:space-between;align-items:center;margin-top:28px;color:#5c3a29;font-size:14px;font-weight:750}
.lab-monitor-label output{color:#a34c1d;font:600 28px Georgia,serif}
dialog#workspace #behavior-threshold{width:100%;margin:16px 0 4px;accent-color:#b34d1a;background:transparent}
.lab-behavior-chart{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));align-items:end;gap:6px;height:235px;padding:10px 7px 0;background:linear-gradient(#fff4e8,#fffaf3)}
.lab-behavior-bar{position:relative;display:flex;align-items:end;height:100%;padding-bottom:25px}
.lab-behavior-bar i{display:block;width:100%;min-height:2px;background:#88b19b;border:2px solid #416b58;border-radius:3px 3px 0 0}
.lab-behavior-bar i{transition:height .25s,background-color .25s,outline-color .25s}
.lab-behavior-bar.is-concern i{background:#eda968;border-color:#ad612f}
.lab-behavior-bar.is-alert i{outline:3px solid #cf6930;outline-offset:2px}
.lab-behavior-bar.is-missing::after{content:"—";position:absolute;bottom:40%;left:30%;color:#a46c50;font-size:20px}
.lab-behavior-value{position:absolute;top:5px;left:50%;transform:translateX(-50%);color:#624631;font-size:10px}
.lab-behavior-bar small{position:absolute;bottom:3px;left:50%;transform:translateX(-50%);color:#745948;font-size:10px}
.lab-behavior-key{display:flex;flex-wrap:wrap;gap:10px 16px;margin-top:18px;color:#755746;font-size:11px}
@media(max-width:1000px){.lab-catalog-hero{grid-template-columns:1fr}.lab-category-grid{max-width:760px}.lab-task-grid{grid-template-columns:1fr}}
@media(max-width:700px){.lab-category-card{min-height:245px;padding:8px 10px 14px}.lab-category-art{height:105px}.lab-category-card>strong{font-size:17px}.lab-category-description{font-size:10px}.lab-category-meta small{font-size:8px}.lab-category-meta em{font-size:9px}.lab-category-arrow{width:22px;height:22px;right:9px;bottom:9px;font-size:15px}.lab-category-page{padding:22px 16px 40px}.lab-category-heading{padding-right:0}.lab-category-heading>b{position:static;display:inline-block;margin-top:17px}.lab-task-controls,.lab-task-results{padding:16px}.lab-behavior-chart{gap:4px}.lab-behavior-value{font-size:9px}}
/* Experiment desks keep their controls and feedback in one desktop viewport. */
.lab-task-page{width:calc(100% - 36px);min-height:calc(100% - 36px);margin:18px auto;padding:18px clamp(18px,2.4vw,34px) 20px}
.lab-task-page>.resource-back{min-height:38px;padding:7px 12px;font-size:13px}
.lab-task-head{margin:13px 0 16px}
.lab-task-head p{margin-bottom:5px;font-size:10px}
.lab-task-head h3{font-size:clamp(34px,3.3vw,48px);white-space:nowrap}
.lab-task-head>span{max-width:none;margin-top:7px;font-size:13px;line-height:1.5}
.lab-task-grid{grid-template-columns:minmax(280px,.82fr) minmax(0,1.18fr);gap:12px}
.lab-task-controls,.lab-task-results{min-width:0;padding:15px}
.lab-task-controls h4,.lab-task-results h4{margin:0 0 12px;font-size:18px}
.lab-task-controls>label:not(.lab-monitor-label):not(.lab-compact-slider){margin-bottom:7px;padding:7px 9px;font-size:12px}
.lab-task-controls>label small{font-size:10px}
.lab-data-summary{gap:6px;margin:12px 0}
.lab-data-summary>div{gap:2px;padding:8px}
.lab-data-summary strong{font-size:23px}
.lab-task-save{min-height:40px}
.lab-data-table th,.lab-data-table td{padding:7px 8px}
.lab-task-note{margin-top:9px;font-size:11px;line-height:1.5}
.lab-preset-row,.lab-timeline-actions{display:flex;gap:6px;flex-wrap:wrap;margin:0 0 11px}
.lab-preset-row button,.lab-timeline-actions button,.lab-task-link{min-height:32px;padding:6px 9px;border:1px solid #ddb99d;background:#fff3e5;color:#7d3d1c;font-size:11px;font-weight:700}
.lab-preset-row button:hover,.lab-preset-row button[aria-pressed="true"],.lab-timeline-actions button:hover,.lab-task-link:hover{background:#a34a1c;color:#fff}
.lab-compact-slider{display:flex;justify-content:space-between;align-items:center;color:#65432f;font-size:12px;font-weight:700}
.lab-compact-slider output{color:#a34a1c}
dialog#workspace #data-temp-limit{width:100%;min-height:20px;margin:2px 0;accent-color:#a34a1c;background:transparent}
.lab-outcome-bar{display:flex;height:10px;margin:0 0 10px;overflow:hidden;background:#eee0d4}
.lab-outcome-bar i{display:block;height:100%;transition:width .25s}
.lab-outcome-bar i:nth-child(1){background:#87af93}.lab-outcome-bar i:nth-child(2){background:#f2aa66}.lab-outcome-bar i:nth-child(3){background:#aa998e}
.lab-row-select{padding:2px 0;border:0;background:transparent;color:#694229;text-decoration:underline;text-decoration-color:#c68c63;text-underline-offset:3px;font-size:12px}
.lab-row-select:hover{color:#a34a1c}
.lab-inline-detail{min-height:35px;margin:9px 0 0;padding:8px 10px;background:#fff0df;color:#77462e;font-size:11px;line-height:1.4}
.lab-monitor-label{margin-top:13px}
dialog#workspace #behavior-threshold{margin:9px 0}
.lab-behavior-chart{height:210px}
.lab-behavior-bar{padding:0 0 25px;border:0;background:transparent;cursor:pointer}
.lab-behavior-bar.is-selected{outline:2px solid #a34a1c;outline-offset:2px}
.lab-behavior-bar:focus-visible{outline:3px solid #a34a1c}
.lab-behavior-key{margin:10px 0}
.lab-timeline-actions{margin:10px 0 0}
.lab-model-page .lab-chart{margin:4px 0 5px}
.lab-model-page .range-control{margin:8px 0;min-height:21px}
.lab-model-metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:6px;margin-bottom:10px}
.lab-model-metrics>div{display:grid;gap:3px;padding:10px;background:#f7e9d9}
.lab-model-metrics strong{color:#9d4218;font:600 24px Georgia,serif}
.lab-model-metrics span{color:#765748;font-size:11px}
.lab-model-page .matrix{font-size:12px;border-spacing:3px}
.lab-model-page .matrix caption{text-align:left}
.lab-model-page .matrix th{padding:4px}
.lab-model-page .matrix td{padding:8px;font-size:19px}
.lab-model-actions{display:flex;gap:8px;margin-top:10px}
.lab-model-actions>.lab-task-save{width:auto;flex:1}
.lab-model-actions>.lab-task-link{min-height:40px}
.lab-model-page [data-sample]{cursor:pointer}
.lab-model-page [data-sample]:focus-visible{outline:3px solid #a34a1c}
.lab-image-grid{grid-template-columns:minmax(0,1.35fr) minmax(285px,.65fr)}
.lab-image-stage{position:relative;width:min(100%,690px);aspect-ratio:751/500;background:#dce9d8;overflow:hidden;cursor:crosshair;touch-action:none;user-select:none}
.lab-image-stage img{display:block;width:100%;height:100%;pointer-events:none}
.lab-user-box,.lab-reference-box{position:absolute;box-sizing:border-box;pointer-events:none}
.lab-user-box{border:3px solid #ed702b;background:#ed702b18;box-shadow:0 0 0 1px #fff9}
.lab-reference-box{border:3px dashed #226448;background:#55a56d22}
.lab-image-controls .lab-preset-row{margin-bottom:15px}
.lab-image-sliders{display:grid;gap:5px}
.lab-image-sliders label{display:grid;grid-template-columns:62px 1fr;align-items:center;gap:8px;color:#64442f;font-size:11px}
.lab-image-sliders input{width:100%;min-height:21px;margin:0;accent-color:#b34d1a;background:transparent}
.lab-image-score{display:grid;grid-template-columns:1fr auto;gap:4px;align-items:center;margin-top:14px;padding:12px;background:#f7e9d9}
.lab-image-score>span{color:#66442f;font-size:13px;font-weight:700}
.lab-image-score strong{grid-column:2;grid-row:1/3;color:#a34a1c;font:600 32px Georgia,serif}
.lab-image-score small{grid-column:1;color:#765748;font-size:10px;line-height:1.4}
.lab-image-controls .lab-task-save{margin-top:14px}
.lab-task-save:disabled{opacity:.5;cursor:not-allowed}
@media(max-width:1000px){.lab-task-grid,.lab-image-grid{grid-template-columns:1fr}.lab-task-head h3{white-space:normal}.lab-image-stage{max-width:751px}}
@media(max-width:700px){.lab-task-page{width:calc(100% - 20px);min-height:calc(100% - 20px);margin:10px auto;padding:16px 12px 25px}.lab-task-head h3{font-size:34px}.lab-task-controls,.lab-task-results{padding:12px}.lab-model-actions{flex-wrap:wrap}.lab-image-stage{width:100%}}
.video-library{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:1120px}
.video-card{background:#ffffffd8}
.video-card video{display:block;width:100%;aspect-ratio:16/9;background:#16382a;object-fit:cover}
.video-card>div{padding:20px}
.video-card small{color:var(--module-accent);font-size:10px;font-weight:800;letter-spacing:.13em}
.video-card h4{margin:8px 0;font-size:20px}
.video-card p{margin:0;color:var(--module-muted);font-size:13px;line-height:1.6}
.graph-page{--graph-theme:#f0c85c;--graph-system:#8ccddc;--graph-data:#8bd7ad;--graph-method:#b6a7f0;--graph-application:#f4a778;--graph-quality:#e994b2}
dialog#workspace #workspace-content[data-view="knowledge-graph"]{padding:0}
#workspace-content[data-view="knowledge-graph"]>.graph-page{width:min(1500px,calc(100% - 48px));max-width:none;min-height:calc(100% - 48px);margin:24px auto;padding:34px clamp(30px,5vw,76px) 72px}
.graph-page .resource-header{max-width:none;margin-bottom:26px}
.graph-shell{max-width:1600px}
.graph-controls{display:flex;justify-content:space-between;align-items:end;gap:18px;margin-bottom:16px}
.graph-scope{display:flex;flex-wrap:wrap;gap:6px}
.graph-scope button{padding:11px 14px;border:0;background:#ffffffb6;color:var(--module-ink);font-size:13px;font-weight:700;transition:background-color .2s,transform .2s}
.graph-scope button[aria-pressed="true"],.graph-scope button:hover{background:var(--module-ink);color:#fff}
.graph-scope button:hover{transform:translateY(-2px)}
.graph-search{display:grid;gap:5px;width:min(310px,100%);color:var(--module-muted);font-size:11px;font-weight:700}
.graph-search input{width:100%;height:42px;padding:0 13px;border:0;border-radius:0;outline:0;background:#ffffffeb;font-size:13px}
.graph-search input:focus-visible{outline:2px solid var(--module-accent);outline-offset:2px}
.graph-search-results{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 15px;padding:14px;background:#ffffffdc}
.graph-search-results[hidden]{display:none}
.graph-search-results button{display:flex;gap:10px;align-items:center;padding:8px 12px;border:0;background:color-mix(in srgb,var(--module-tone) 35%,#fff);color:var(--module-ink)}
.graph-search-results small{font-size:10px;color:var(--module-muted)}
.graph-workspace{display:grid;grid-template-columns:minmax(0,1fr) 315px;align-items:stretch;gap:14px}
.graph-board{min-width:0;background:#0d3031;color:#e8f4e8}
.graph-board-top{display:flex;justify-content:space-between;gap:14px;align-items:center;min-height:59px;padding:10px 16px}
.graph-types{display:flex;flex-wrap:wrap;gap:3px}
.graph-types button{display:flex;align-items:center;gap:5px;padding:8px 9px;border:0;background:transparent;color:#c2d8cf;font-size:11px;white-space:nowrap}
.graph-types button[aria-pressed="true"],.graph-types button:hover{background:#ffffff1f;color:#fff}
.graph-type-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--graph-colour)}
.graph-theme{--graph-colour:var(--graph-theme)}.graph-system{--graph-colour:var(--graph-system)}.graph-data{--graph-colour:var(--graph-data)}.graph-method{--graph-colour:var(--graph-method)}.graph-application{--graph-colour:var(--graph-application)}.graph-quality{--graph-colour:var(--graph-quality)}
.graph-zoom{display:flex;align-items:center;gap:2px;flex:none}
.graph-zoom button{min-width:29px;height:29px;padding:2px 6px;border:0;background:#ffffff1e;color:#fff;font-size:13px}
.graph-zoom button:hover{background:#ffffff3b}
.graph-zoom output{min-width:39px;text-align:center;font-size:11px}
.graph-viewport{position:relative;height:570px;overflow:hidden;touch-action:none;cursor:grab;background-color:#123b3c}
.graph-viewport:active{cursor:grabbing}
.graph-scene{position:absolute;inset:0;transform-origin:center center;transition:transform .18s ease-out}
.graph-scene::before,.graph-scene::after{content:"";position:absolute;border-radius:50%;pointer-events:none}
.graph-scene::before{width:340px;height:340px;left:calc(50% - 170px);top:calc(50% - 170px);background:#ffffff05}
.graph-scene::after{width:470px;height:470px;left:calc(50% - 235px);top:calc(50% - 235px);background:#ffffff05}
.graph-scene>svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
#graph-lines line{stroke:#a5d7c75a;stroke-width:1.2;stroke-dasharray:4 7;animation:graph-flow 11s linear infinite}
#graph-lines line.is-lit{stroke:#f0c85cd1;stroke-width:2.2;stroke-dasharray:none}
#graph-nodes{position:absolute;inset:0}
.graph-point{position:absolute;left:var(--x);top:var(--y);display:flex;flex-direction:column;align-items:center;gap:5px;min-width:95px;padding:3px 5px;border:0;background:transparent;color:#f5faf5;transform:translate(-50%,-50%);animation:graph-appear .45s ease-out var(--delay) both;transition:opacity .2s}
.graph-point .graph-dot{position:relative;width:13px;height:13px;border-radius:50%;background:var(--graph-colour);transition:transform .2s}
.graph-point .graph-label{max-width:116px;padding:4px 7px;background:#0e3031d9;font-size:11px;line-height:1.3;text-align:center}
.graph-board.is-chapter-view .graph-point .graph-label{max-width:132px;font-size:12px;line-height:1.35}
.graph-point:focus-visible{outline:2px solid #f0c85c;outline-offset:4px}
.graph-point.graph-theme .graph-dot{width:25px;height:25px}
.graph-point.graph-theme .graph-label{font-size:15px;font-weight:800}
.graph-point.is-muted{opacity:.34}
.graph-point.is-selected .graph-dot,.graph-point:hover .graph-dot,.graph-point:focus-visible .graph-dot{transform:scale(1.45)}
.graph-point.is-selected .graph-label,.graph-point:hover .graph-label,.graph-point:focus-visible .graph-label{background:#e7f7eb;color:#123b3c}
.graph-board-bottom{display:flex;justify-content:space-between;gap:15px;padding:12px 18px;color:#afcdc4;font-size:11px}
.graph-inspector{min-width:0;padding:28px 24px;background:#fafff7ed;color:var(--module-ink)}
.graph-inspector>small{color:var(--module-accent);font-size:11px;font-weight:800}
.graph-inspector h4{margin:10px 0 15px;font-size:28px;line-height:1.2}
.graph-inspector>p{margin:0;color:var(--module-muted);font-size:14px;line-height:1.75}
.graph-source,.graph-relations{display:grid;gap:9px;margin-top:22px;padding-top:17px}
.graph-path{display:grid;gap:8px;margin-top:18px;padding-top:16px;border-top:1px solid #d4e3d8}
.graph-path>span{color:var(--module-muted);font-size:11px;font-weight:700}
.graph-path>div{display:grid;gap:5px}
.graph-path button{padding:7px 9px;border:0;background:#e8f2e7;color:var(--module-ink);text-align:left;font-size:12px;font-weight:700}
.graph-path button[aria-current="step"]{background:#194b49;color:#fff}
.graph-path button:hover{transform:translateX(3px)}
.graph-source span,.graph-relations>span{color:var(--module-muted);font-size:11px;font-weight:700}
.graph-source strong{font-size:13px;line-height:1.5}
.graph-relations>div{display:flex;flex-wrap:wrap;gap:5px}
.graph-relations button{padding:6px 8px;border:0;background:#e8f2e7;color:var(--module-ink);font-size:11px}
.graph-relations button:hover{background:#d2e8d4}
.graph-actions{display:grid;gap:7px;margin-top:24px}
.graph-actions a,.graph-actions button{display:block;padding:10px 12px;border:0;background:var(--module-ink);color:#fff!important;text-align:left;text-decoration:none;font-size:12px;font-weight:700}
.graph-actions button{background:#e4efe3;color:var(--module-ink)!important}
.graph-actions a:hover,.graph-actions button:hover{filter:brightness(.91)}
.graph-routes{display:grid;grid-template-columns:155px repeat(3,minmax(0,1fr));align-items:center;gap:8px;margin-top:18px}
.graph-routes>span{font-size:13px;font-weight:800;color:var(--module-ink)}
.graph-routes button{display:flex;justify-content:space-between;gap:8px;min-height:54px;align-items:center;padding:11px 13px;border:0;background:#ffffffd7;color:var(--module-ink);font-size:12px;text-align:left}
.graph-routes button:hover{background:#fff;transform:translateY(-2px)}
@keyframes graph-flow{to{stroke-dashoffset:-110}}
@keyframes graph-appear{from{opacity:0;transform:translate(-50%,-50%) scale(.55)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}
dialog#workspace #workspace-content[data-view="tutor"]{padding:0;overflow:hidden}
#workspace-content[data-view="tutor"]>.tutor-shell{width:100%;max-width:none;height:100%;min-height:0}
dialog#workspace #workspace-content[data-view="tutor"]>.tutor-shell{max-width:none}
.tutor-shell{display:grid;grid-template-columns:245px minmax(0,1fr) 220px;background:#f4faf8ed;color:#173d49}
.tutor-sidebar{display:flex;flex-direction:column;min-height:0;padding:23px 17px;background:#153e4b;color:#e9f4ef}
.tutor-side-title{display:flex;align-items:center;gap:11px;padding:4px 8px 26px}
.tutor-side-mark{display:grid;width:34px;height:34px;place-items:center;border-radius:50%;background:#8dcba9;color:#153e4b;font-size:13px;font-weight:800}
.tutor-side-title strong{display:block;font:600 18px/1.1 Georgia,"Microsoft YaHei",serif}
.tutor-side-title small{display:block;margin-top:5px;color:#c4d9d2;font-size:10px}
.tutor-new{display:flex;align-items:center;gap:10px;width:100%;padding:12px 14px;border:0;background:#e9f6e9;color:#153e4b;text-align:left;font-size:13px;font-weight:700}
.tutor-new:hover{background:#d6ecd9}
.tutor-new span{font-size:21px;line-height:1}
.tutor-side-label{display:flex;justify-content:space-between;align-items:center;margin:34px 8px 13px;color:#d7e9df;font-size:12px;font-weight:700}
.tutor-side-label small{color:#9dbbb2;font-size:9px;font-weight:400}
.tutor-session-list{display:grid;align-content:start;gap:3px;min-height:0;overflow:auto}
.tutor-session{display:flex;align-items:center;gap:8px;width:100%;padding:10px 11px;border:0;background:transparent;color:#c9ddd5;text-align:left;font-size:12px}
.tutor-session strong{font-weight:500;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tutor-session span{font-size:18px;color:#93c2b2}
.tutor-session:hover,.tutor-session.is-active{background:#ffffff1c;color:#fff}
.tutor-side-bottom{margin-top:auto;padding:18px 12px 6px;background:#ffffff10}
.tutor-side-bottom p{margin:0 0 13px;text-align:center;color:#c7ddd1;font-size:11px;line-height:1.6}
.tutor-side-bottom>button:last-child{display:block;width:100%;padding:8px;border:0;background:transparent;color:#a7c7bd;font-size:10px}
.tutor-side-bottom>button:last-child:hover{color:#fff}
.tutor-main{display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;min-width:0;min-height:0;background:#f9fcf9e9}
.tutor-top{display:flex;align-items:center;gap:14px;min-height:76px;padding:13px clamp(20px,3vw,46px);background:#ffffffc9}
.tutor-top>div small{color:#64838c;font-size:9px;font-weight:800;letter-spacing:.17em}
.tutor-top h3{margin:4px 0 0;color:#173f50;font:600 24px/1.1 "Microsoft YaHei",sans-serif}
.tutor-top h3 span{color:#db9051;font-size:18px}
.tutor-header-dog{display:none}
.tutor-status{margin-left:auto;padding:8px 12px;border-radius:999px;background:#e4f1e8;color:#246b5a;font-size:11px;font-weight:700;white-space:nowrap}
#tutor-history-toggle{display:none;border:0;background:transparent;color:#173f50;font-size:19px}
.tutor-feed{min-height:0;overflow-y:auto;overscroll-behavior:contain;padding:26px clamp(20px,4vw,65px) 34px;scrollbar-width:thin;scrollbar-color:#a7c8bb transparent}
.tutor-welcome{display:grid;justify-items:center;align-content:center;min-height:100%;max-width:750px;margin:auto;text-align:center}
.tutor-welcome[hidden]{display:none}
.tutor-dog-button{position:relative;width:100%;padding:0;border:0;background:transparent;cursor:pointer}
.tutor-dog-button svg{display:block;width:100%;height:auto}
.tutor-companion{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-width:0;padding:24px 22px;background:#d9eae4d9;text-align:center}
.tutor-companion-number{align-self:flex-start;color:#42706f;font-size:11px;font-weight:800;letter-spacing:.12em}
.tutor-companion .tutor-dog-button{width:155px;flex:none;transition:transform .3s ease}
.tutor-companion .tutor-dog-button:hover{transform:translateY(-5px)}
.tutor-companion strong{font-size:20px;color:#1b4b52}
.tutor-companion p{margin:0;color:#41686c;font-size:13px;line-height:1.65}
.tutor-companion>div{display:grid;width:100%;gap:9px;margin-top:20px;padding:15px;background:#ffffff64}
.tutor-companion>div span{text-align:left;color:#315b5e;font-size:12px;font-weight:700}
.tutor-intro-label{margin:0 0 12px!important;color:#4b8b76!important;font-size:11px!important;font-weight:800;letter-spacing:.14em}
.tutor-welcome h4{margin:0;color:#173e4c;font:500 clamp(29px,3.5vw,44px)/1.2 "Microsoft YaHei",sans-serif;letter-spacing:-.04em}
.tutor-welcome>p:not(.tutor-intro-label){max-width:520px;margin:16px 0 27px;color:#5d7c80;font-size:14px;line-height:1.8}
.tutor-prompts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:100%}
.tutor-prompts button{display:flex;justify-content:space-between;align-items:center;gap:10px;min-height:62px;padding:13px 15px;border:0;background:#e8f4ed;color:#28545a;text-align:left;font-size:12px;font-weight:700;transition:transform .18s,background-color .18s}
.tutor-prompts button:hover{transform:translateY(-3px);background:#d9ecdf}
.tutor-prompts span{font-size:17px}
.tutor-messages{display:grid;gap:24px;max-width:850px;margin:auto}
.tutor-message{display:flex;align-items:flex-start;gap:12px}
.tutor-message.is-user{flex-direction:row-reverse}
.tutor-avatar{display:grid;width:31px;height:31px;flex:none;place-items:center;border-radius:50%;background:#2a6a6b;color:#fff;font:700 14px Georgia,serif}
.tutor-message.is-user .tutor-avatar{background:#d18153;font-family:"Microsoft YaHei",sans-serif}
.tutor-message-body{max-width:min(92%,720px);min-width:0}
.tutor-message-label{display:block;margin:4px 0 8px;color:#4c7476;font-size:11px;font-weight:700}
.tutor-message.is-user .tutor-message-label{text-align:right}
.tutor-message-text{padding:15px 18px;background:#e6f2eb;color:#193e49;font-size:14px;line-height:1.8;overflow-wrap:anywhere}
.tutor-message.is-user .tutor-message-text{background:#dceadf}
.tutor-sent-image{display:block;max-width:210px;max-height:160px;object-fit:contain;margin:0 0 8px auto;background:#fff}
.tutor-image-name{display:block;margin-bottom:8px;color:#4c7476;font-size:12px}
.tutor-source-list{display:flex;flex-wrap:wrap;gap:6px;margin-top:9px}
.tutor-source-list button{padding:7px 9px;border:0;background:#d7e9dd;color:#28605e;font-size:11px}
.tutor-thinking{display:flex;align-items:center;gap:5px;max-width:850px;margin:22px auto 0;color:#5a8580;font-size:12px}
.tutor-thinking[hidden]{display:none}
.tutor-thinking span{width:6px;height:6px;border-radius:50%;background:#5b9e8d;animation:tutor-dot 1s ease-in-out infinite}
.tutor-thinking span:nth-child(2){animation-delay:.15s}.tutor-thinking span:nth-child(3){animation-delay:.3s}
.tutor-thinking b{margin-left:7px;font-weight:500}
.tutor-composer{width:min(850px,calc(100% - 48px));margin:0 auto;padding:10px 13px 9px;background:#fff}
.tutor-input-label{display:block;margin:0 0 4px;color:#507780;font-size:11px;font-weight:700}
.tutor-composer textarea{display:block;width:100%;min-height:46px;max-height:150px;padding:9px 2px;border:0!important;border-radius:0!important;background:transparent!important;resize:none;outline:0;color:#173e49;font-size:14px;line-height:1.55}
.tutor-composer textarea:focus{outline:0}
.tutor-composer-bottom{display:flex;align-items:center;gap:10px}
.tutor-attach{display:flex;align-items:center;gap:6px;padding:6px 8px;border:0;background:transparent;color:#2e7073;font-size:12px;font-weight:700;white-space:nowrap;cursor:pointer}
.tutor-attach span{font-size:19px}
.tutor-attach:hover{background:#e9f3ed}
.tutor-composer-hint{margin-left:auto;color:#8da5a5;font-size:10px}
.tutor-send{display:grid;width:33px;height:33px;flex:none;place-items:center;border:0;border-radius:50%;background:#246e6c;color:#fff;font-size:20px}
.tutor-send:hover{background:#154d50}.tutor-send:disabled{opacity:.5;cursor:wait}
.tutor-image-preview{display:flex;align-items:center;gap:10px;margin-bottom:9px;padding:7px;background:#eaf5ed}
.tutor-image-preview[hidden]{display:none}
.tutor-image-preview img{width:50px;height:50px;object-fit:cover}
.tutor-image-preview span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px;color:#416b6c}
.tutor-image-preview button{border:0;background:transparent;color:#416b6c;font-size:20px}
.tutor-footnote{margin:7px 15px 12px;color:#5b7b7d;text-align:center;font-size:11px}
.dog-tail{transform-origin:126px 133px;animation:dog-wag 2.2s ease-in-out infinite}
.dog-head{transform-origin:85px 97px;animation:dog-bob 3.6s ease-in-out infinite}
.dog-ear-left,.dog-ear-right{transform-origin:85px 66px}
.dog-eye{transform-origin:center;animation:dog-blink 5s infinite}
.dog-spark{animation:dog-sparkle 2.8s ease-in-out infinite}
.tutor-shell[data-dog-state="thinking"] .dog-head{animation:dog-think .75s ease-in-out infinite alternate}
.tutor-shell[data-dog-state="thinking"] .dog-tail{animation-duration:.7s}
.tutor-shell[data-dog-state="happy"] .dog-tail,.tutor-dog-button:hover .dog-tail{animation-duration:.42s}
.tutor-shell[data-dog-state="concerned"] .dog-head{transform:rotate(-7deg)}
@keyframes dog-wag{50%{transform:rotate(22deg)}}
@keyframes dog-bob{50%{transform:translateY(3px)}}
@keyframes dog-think{to{transform:rotate(7deg) translateY(3px)}}
@keyframes dog-blink{0%,45%,48%,100%{transform:scaleY(1)}46%{transform:scaleY(.08)}}
@keyframes dog-sparkle{50%{opacity:.35;transform:translateY(-3px)}}
@keyframes tutor-dot{50%{transform:translateY(-4px);opacity:.45}}
dialog#workspace #workspace-content[data-view="reader"]{padding:0}
dialog#workspace #workspace-content[data-view="reader"]>.reader{width:min(1120px,calc(100% - 48px));max-width:none;min-height:calc(100% - 48px);margin:24px auto;padding:40px clamp(28px,5vw,72px) 70px;background:#fffcf1e8}
.reader h3{font-size:clamp(28px,3vw,38px)}
.reader-text,.reader details,.reader .learning-objectives{max-width:78ch}
.reader-text p{font-size:16px;line-height:2}
dialog#workspace .reader-head .secondary{min-height:48px;padding:10px 17px;border:0;background:var(--module-accent);color:#fff;font-size:17px;font-weight:750;transition:transform .2s ease,background-color .2s ease}
dialog#workspace .reader-head .secondary:hover,dialog#workspace .reader-head .secondary:focus-visible{transform:translateX(-4px);background:var(--module-ink)}
@media(prefers-reduced-motion:no-preference){dialog#workspace.module-enter .workspace-shell::before{animation:module-image-enter .9s cubic-bezier(.76,0,.24,1) both}
dialog#workspace.module-enter #workspace-content>*{animation:module-section-enter .65s cubic-bezier(.22,1,.36,1) both}
dialog#workspace.module-enter #workspace-content>*:nth-child(2){animation-delay:.07s}
dialog#workspace.module-enter #workspace-content>*:nth-child(3){animation-delay:.14s}
dialog#workspace.module-enter #workspace-content>*:nth-child(4){animation-delay:.21s}
dialog#workspace.module-enter #workspace-content>*:nth-child(n+5){animation-delay:.28s}
}
@keyframes module-image-enter{from{opacity:.25;clip-path:inset(0 0 0 72%);transform:scale(1.04)}to{opacity:1;clip-path:inset(0);transform:none}}
@keyframes module-section-enter{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:none}}
@media(max-width:1100px){dialog#workspace .workspace-header{height:auto;min-height:76px;flex-wrap:wrap;gap:10px 18px;padding:10px 18px}
dialog#workspace .workspace-header h2{font-size:21px}
.workspace-top-nav{order:3;width:100%;margin:0;overflow-x:auto;gap:18px}
.workspace-top-nav button{font-size:13px;padding:8px 0}
dialog#workspace #workspace-content{width:100%;padding-top:28px}
dialog#workspace #workspace-content>*{max-width:none}
.knowledge-hero{grid-template-columns:minmax(250px,.72fr) minmax(460px,1.28fr);gap:28px;padding:34px}
.resource-card{min-height:215px;padding:20px}
.resource-list{grid-template-columns:1fr}
.graph-workspace{grid-template-columns:1fr}
.graph-inspector{min-height:270px}
.graph-controls{align-items:start;flex-direction:column}
.graph-search{width:min(460px,100%)}
.graph-routes{grid-template-columns:1fr 1fr}
.graph-routes>span{grid-column:1/-1}
}
@media(max-width:700px){.workspace-home.close-button svg{width:36px;height:36px}
.workspace-home.close-button>span{font-size:23px}
dialog#workspace .workspace-header h2{margin-left:auto;font-size:19px}
dialog#workspace .workspace-shell::before{background-position:68% center}
dialog#workspace .workspace-shell::after{content:"";position:absolute;inset:0;background:#ffffffc7}
dialog#workspace #workspace-content{width:100%;padding:24px 16px 42px;background:transparent}
dialog#workspace #workspace-content>*{max-width:100%}
dialog#workspace .panel-intro{font-size:16px}
#workspace-content[data-view="knowledge"]>.knowledge-page{padding:28px 16px}
.knowledge-page-inner{width:100%;grid-template-columns:1fr;gap:24px}
.knowledge-lead h3,.knowledge-group-copy h3{font-size:40px}
.knowledge-lead>p,.knowledge-group-copy>p{font-size:16px}
.knowledge-search{grid-column:1;grid-template-columns:1fr}
#knowledge-search-results{grid-column:1}
.knowledge-next{grid-column:1}
.knowledge-chapter{grid-template-columns:62px 1fr;gap:10px;min-height:68px}
.knowledge-chapter>small{grid-column:2}
.knowledge-hero{display:block;min-height:auto;padding:42px 18px 54px}
.knowledge-hero-copy{margin-bottom:32px}
.knowledge-hero-copy h3{font-size:43px}
.knowledge-stats{gap:14px;justify-content:space-between}
.knowledge-stats span{display:grid;gap:5px}
.resource-grid{grid-template-columns:1fr}
.resource-card{min-height:205px}
.knowledge-hint{display:none}
dialog#workspace #workspace-content[data-view="knowledge-resource"]>.resource-page,dialog#workspace #workspace-content[data-view="knowledge-graph"]>.graph-page{width:calc(100% - 24px);min-height:calc(100% - 24px);margin:12px auto;padding:22px 18px 54px}
.resource-back{min-height:44px;padding:9px 13px;font-size:15px}
.resource-header{display:block;margin:25px 0 24px}
.resource-header>span{display:block}
.resource-header>b{display:inline-block;margin-top:18px}
.resource-row{grid-template-columns:38px 1fr;gap:10px}
.resource-row>a,.resource-row>small{grid-column:2;justify-self:start}
.video-library{grid-template-columns:1fr}
dialog#workspace #workspace-content[data-view="reader"]>.reader{width:calc(100% - 24px);min-height:calc(100% - 24px);margin:12px auto;padding:24px 18px 54px}
.graph-scope{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));width:100%}
.graph-scope button{font-size:12px}
.graph-board-top{align-items:start;flex-direction:column}
.graph-types{max-width:100%}
.graph-zoom{align-self:flex-end}
.graph-viewport{height:500px;overflow:auto}
.graph-scene{inset:0 auto auto 0;width:900px;height:500px}
.graph-board-bottom{display:grid}
.graph-routes{grid-template-columns:1fr}
.graph-routes>span{grid-column:1}
}
@media(max-width:900px){.tutor-shell{position:relative;display:block}
.tutor-sidebar{position:absolute;z-index:5;inset:0 auto 0 0;width:min(280px,85vw);transform:translateX(-120%);transition:transform .25s ease;box-shadow:none}
.tutor-shell.history-open .tutor-sidebar{transform:translateX(0)}
.tutor-main{height:100%}
.tutor-companion{display:none}
.tutor-top .tutor-header-dog{display:block;width:44px;flex:0 0 44px;margin-left:auto}
.tutor-header-dog+.tutor-status{margin-left:0}
#tutor-history-toggle{display:block}
}
@media(max-width:600px){.tutor-top{min-height:65px;padding:10px 16px}
.tutor-top h3{font-size:19px}
.tutor-top .tutor-header-dog{width:34px;flex-basis:34px}
.tutor-status{padding:6px 8px;font-size:9px}
.tutor-feed{padding:15px 16px 20px}
.tutor-welcome{justify-content:start;min-height:100%;padding-top:8px}
.tutor-orbit{width:122px;height:115px}
.tutor-orbit .tutor-dog-button{width:105px}
.tutor-welcome h4{font-size:27px}
.tutor-welcome>p:not(.tutor-intro-label){font-size:12px;margin:12px 0 18px}
.tutor-prompts{grid-template-columns:1fr;gap:5px}
.tutor-prompts button{min-height:43px}
.tutor-composer{width:calc(100% - 24px)}
.tutor-composer-hint{display:none}
.tutor-footnote{font-size:10px}
.tutor-message-body{max-width:calc(100% - 43px)}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
.farm-world,.cow-herd,.leaf-branch{translate:none!important}
}

/* Accommodate the longer VetSurgeryAI wordmark. */
.wordmark{font-size:clamp(42px,5.4vw,76px);letter-spacing:-3px}
@media(max-width:480px){.wordmark{font-size:clamp(32px,8vw,42px);letter-spacing:-2px}.brand>span{font-size:20px}}