:root{--bg:#f6f5f0;--paper:#fffefa;--ink:#283830;--muted:#8a8d82;--line:#e8e8df;--accent:#b65036;--orange:#be6041;--soft:#f6eae0;--green:#697d61;--serif:'Noto Serif SC','Songti SC','STSong',serif;--shadow:0 8px 28px #3e392407}
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12px}.modal-inner>.description{font-size:12px;color:#939b84;line-height:1.9;margin-bottom:22px}.form-group{margin:20px 0}.form-group label{display:block;font-size:12px;margin-bottom:9px;color:#6f7e63}.choice-group{display:flex;gap:8px}.choice-group button{flex:1;border:1px solid #e1e3d6;padding:11px 7px;border-radius:7px;font-size:12px}.choice-group button.active{border-color:#7f956c;background:#eef1e5;color:#45603a}.form-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:26px}.form-note{font-size:10px;color:#929d85;background:#f3f3eb;padding:12px 14px;border-radius:6px}.lesson-detail{line-height:1.9}.lesson-detail section{margin:20px 0}.lesson-detail h3{font-family:var(--serif);font-size:16px;margin-bottom:7px}.lesson-detail p{font-size:12px;color:#86917a;white-space:pre-line}.quiz{margin-top:22px;padding:20px;background:#f2f2e8;border-radius:10px}.quiz h3{font-size:14px;margin:6px 0 14px}.quiz-options{display:grid;gap:7px}.quiz-options button{text-align:left;padding:10px 13px;border:1px solid #dfe3d2;border-radius:6px;background:#fffefa;font-size:12px}.quiz-options button.correct{border-color:#799462;background:#e7eedb}.quiz-options button.wrong{border-color:#c28d77;background:#f9e8df}.quiz-result{font-size:12px;margin-top:12px;color:#617b4c}.tour-piece{font-family:var(--serif);width:85px;height:85px;background:#f1e5cd;color:#b65036;display:grid;place-items:center;border-radius:50%;font-size:43px;margin:23px auto;border:1px solid #d9bd8d;box-shadow:inset 0 0 0 5px #f9eed6,inset 0 0 0 6px #d8bf94}.tour-dots{display:flex;justify-content:center;gap:6px;margin:20px}.tour-dots span{height:5px;width:5px;border-radius:100px;background:#dbe1cc}.tour-dots span.active{background:#738c60;width:18px}.tour-text{text-align:center;max-width:350px;margin:auto;font-size:13px;line-height:2;color:#879278}.setting-toggle{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);font-size:12px}.setting-toggle input{accent-color:#687e58;width:18px;height:18px}.license{font-size:11px;color:#a0a58f;margin-top:20px}.license a{text-decoration:underline}.large-text{font-size:16px}.large-text .piece{font-size:clamp(22px,2.5vw,35px)}.large-text .coach-bubble p,.large-text .greeting,.large-text .lesson-detail p{font-size:14px}#toast{position:fixed;left:50%;bottom:30px;transform:translate(-50%,20px);padding:12px 24px;background:#344b35;color:#fffbef;border-radius:8px;box-shadow:0 8px 30px #22332225;z-index:200;opacity:0;pointer-events:none;transition:.2s;font-size:12px;max-width:90vw;text-align:center}#toast.visible{opacity:1;transform:translate(-50%,0)}.spinning{animation:spin 1.5s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(min-width:1550px){.content{padding:35px 60px}.workspace{grid-template-columns:minmax(450px,1fr) 340px;gap:28px}.board-container{max-width:560px}.rail{gap:22px}.coach-body .greeting,.coach-bubble p{font-size:12px}.coach-header{padding-top:24px}.coach-body{padding-bottom:23px}}
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.play-card:fullscreen{overflow:auto;background:var(--bg);display:flex;flex-direction:column;align-items:center}.play-card:fullscreen .board-section{width:min(650px,100%)}.play-card:fullscreen .play-toolbar,.play-card:fullscreen .board-controls{width:min(750px,100%)}

.brand-sub{white-space:nowrap;font-size:8px;letter-spacing:1.5px}.nav-label{font-size:9px;letter-spacing:1.2px;white-space:nowrap}.board-message .secondary{margin-left:8px}

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@media(max-width:600px){.insight-content{padding:16px}.insight-tabs button{font-size:11px}.insight-row{grid-template-columns:22px 1fr auto}}

.nav a{display:flex;align-items:center;gap:13px;padding:13px 16px;border-radius:8px;text-align:left;color:#777e72;font-size:13px}.nav a:hover{background:#efeee6}.nav a .icon{width:20px;height:20px}
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.online-body{min-height:100vh;background:radial-gradient(circle at 50% -20%,#f8ead9 0,transparent 42%),var(--bg)}.online-header{height:78px;display:flex;align-items:center;gap:35px;padding:0 max(5vw,24px);border-bottom:1px solid var(--line);background:#fffefaee}.online-brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:26px;white-space:nowrap}.online-brand small{display:block;font-family:system-ui,sans-serif;font-size:8px;letter-spacing:1.8px;color:var(--muted)}.online-header nav{display:flex;gap:24px;margin-left:30px}.online-header nav a{font-size:12px;color:#7d8979;padding:27px 0;border-bottom:2px solid transparent}.online-header nav a.active,.online-header nav a:hover{color:var(--accent);border-color:var(--accent)}.online-head-note{margin-left:auto;color:#9a9f91;font-size:11px}.online-main{max-width:1310px;margin:auto;padding:50px 28px 70px}.online-hero{margin-bottom:29px}.online-hero h1{font-size:36px;letter-spacing:1px;margin:7px 0}.online-hero 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.primary{width:min(290px,100%);font-size:13px;padding:12px;margin-top:12px}.online-lobby small{font-size:10px;color:#a2a79b;max-width:310px;line-height:1.7;margin-top:17px}.online-search{display:flex;gap:20px;margin-bottom:36px}.online-search span{display:grid;place-items:center;width:82px;height:82px;border-radius:50%;background:#f4e7d5;border:1px solid #d9bf9e;font-family:var(--serif);font-size:35px;color:#b65036;box-shadow:0 5px 10px #76644622;animation:online-float 2.4s ease-in-out infinite alternate}.online-search span+span{color:#344d3b;animation-delay:.8s}.online-waiting .secondary{font-size:12px;padding:10px 30px}@keyframes online-float{to{transform:translateY(-10px)}}.online-game{max-width:670px;margin:auto;padding:22px 26px 28px}.online-game-head{display:flex;justify-content:space-between;align-items:center;gap:10px;border-bottom:1px solid var(--line);padding-bottom:15px;margin-bottom:11px}.online-game-head 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@media(max-width:960px){.nav a{padding:15px;justify-content:center}.nav a span{display:none}.online-layout{grid-template-columns:1fr}.online-aside{grid-template-columns:1fr 1fr}.online-card{min-height:500px}.online-lobby{min-height:500px}.online-head-note{display:none}}
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