:root{
  --bg:#090b10;--surface:#11141b;--surface2:#171b24;--surface3:#1d2230;
  --text:#f1eee8;--muted:#8d94a3;--primary:#9c8cff;--primary2:#c3b9ff;
  --secondary:#5dd6c0;--warm:#d6aa73;--border:rgba(255,255,255,.08);
}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:radial-gradient(circle at 12% 0,rgba(156,140,255,.12),transparent 28%),var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC",sans-serif}
button,input,select,textarea{font:inherit}.app-shell{width:min(1180px,calc(100% - 30px));margin:auto}
.topbar{height:74px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--border);position:sticky;top:0;background:#090b10e8;backdrop-filter:blur(16px);z-index:20}
.brand,nav button{border:0;background:none;color:inherit;cursor:pointer}.brand{font-size:22px;font-weight:900;letter-spacing:.08em}.brand span{color:var(--primary2)}
.topbar nav{display:flex;gap:8px}.topbar nav button{color:var(--muted);padding:9px 12px;border-radius:9px}.topbar nav button:hover{background:var(--surface2);color:var(--text)}
main{min-height:calc(100vh - 160px)}.view{display:none;padding:44px 0 64px}.view.active{display:block}
.hero{min-height:620px;display:grid;grid-template-columns:1.25fr .75fr;gap:50px;align-items:center}.eyebrow{font-size:12px;letter-spacing:.17em;font-weight:800;color:var(--secondary)}
.hero h1{font-size:clamp(42px,6vw,76px);line-height:1.04;letter-spacing:-.04em;margin:16px 0 24px}.lead{font-size:18px;line-height:1.9;color:#b9bec8;max-width:760px}.actions{display:flex;gap:10px;margin-top:28px}
.primary,.secondary,.coffee{border-radius:11px;padding:11px 17px;cursor:pointer}.primary{border:0;background:linear-gradient(135deg,var(--primary),#7465df);color:#fff;font-weight:800}.secondary{border:1px solid var(--border);background:var(--surface2);color:var(--text)}
.hero-card{background:linear-gradient(180deg,#151923,#10131a);border:1px solid var(--border);border-radius:22px;padding:24px}.status-dot{display:block;width:9px;height:9px;border-radius:50%;background:var(--secondary);box-shadow:0 0 15px var(--secondary);margin-bottom:18px}.hero-card small{color:var(--muted);letter-spacing:.13em}.hero-card div{display:flex;justify-content:space-between;padding:15px 0;border-top:1px solid var(--border);font-size:13px;margin-top:14px}.hero-card div+div{margin-top:0}.hero-card div span{color:var(--muted)}
.section-head,.builder-header{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section-head h2,.builder-header h2,.about-wrap h2{font-size:38px;margin:8px 0 0}.filters{display:flex;gap:7px;flex-wrap:wrap}.filter{border:1px solid var(--border);background:var(--surface);color:var(--muted);padding:8px 12px;border-radius:999px;cursor:pointer}.filter.active,.filter:hover{color:var(--text);background:rgba(156,140,255,.12);border-color:rgba(156,140,255,.4)}
.character-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}.character-card{background:var(--surface);border:1px solid var(--border);border-radius:17px;overflow:hidden;cursor:pointer;transition:.2s}.character-card:hover{transform:translateY(-4px);border-color:rgba(156,140,255,.45)}.character-card img{width:100%;aspect-ratio:4/3;object-fit:cover}.character-content{padding:16px}.character-content h3{margin:5px 0 9px}.character-content p{color:var(--muted);font-size:13px;line-height:1.65}.tags{display:flex;gap:6px;flex-wrap:wrap}.tag{font-size:11px;color:var(--primary2);background:rgba(156,140,255,.09);border:1px solid rgba(156,140,255,.16);padding:4px 7px;border-radius:999px}
.back-link{border:0;background:none;color:var(--muted);cursor:pointer;padding:0;margin-bottom:24px}.detail-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:44px}.detail-image{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:22px;border:1px solid var(--border)}.detail-copy h1{font-size:50px;margin:10px 0}.detail-copy p{color:#b7bdc9;line-height:1.9}.quote{border-left:3px solid var(--primary);padding:14px 18px;background:rgba(156,140,255,.06);border-radius:0 12px 12px 0;margin:24px 0}.chip{padding:9px 13px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--muted)}
.stepper{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-bottom:14px}.step{background:var(--surface);border:1px solid var(--border);color:var(--muted);border-radius:11px;padding:11px;cursor:pointer}.step.active{background:rgba(156,140,255,.12);border-color:rgba(156,140,255,.42);color:var(--text)}
.builder-card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:22px}.builder-step{display:none}.builder-step.active{display:block}.builder-step h3{margin:0 0 20px}.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}.choice-card{display:flex;flex-direction:column;gap:9px;padding:20px;border:1px solid var(--border);background:var(--surface2);border-radius:15px;cursor:pointer}.choice-card input{display:none}.choice-card.selected{background:rgba(156,140,255,.1);border-color:rgba(156,140,255,.5)}.choice-icon{font-size:26px;color:var(--secondary)}.choice-card small,.note{color:var(--muted);line-height:1.7}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.form-grid label{display:flex;flex-direction:column;gap:7px;color:var(--muted);font-size:13px}.form-grid .wide{grid-column:1/-1}.api-onboarding-intro{margin-top:-6px}.api-primary-grid{margin-bottom:12px}.api-key-primary{padding:14px;border:1px solid rgba(156,140,255,.28);border-radius:13px;background:rgba(156,140,255,.06)}.api-key-primary input{font-size:16px}.api-key-primary small{color:var(--muted);line-height:1.55}.api-connection-summary{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin:4px 0 12px}.api-advanced-settings{margin-top:12px;border:1px solid var(--border);border-radius:13px;background:rgba(255,255,255,.018)}.api-advanced-settings>summary{cursor:pointer;padding:13px 14px;color:var(--primary2);font-weight:700}.api-advanced-settings>p,.api-advanced-settings>[data-api-advanced-grid],.api-advanced-settings>.model-advisor,.api-advanced-settings>.api-route-advice{margin-left:14px;margin-right:14px}.api-advanced-settings>[data-api-advanced-grid]{margin-bottom:12px}input,select,textarea{width:100%;border:1px solid var(--border);background:#0b0e14;color:var(--text);border-radius:10px;padding:11px 12px;outline:none}textarea{min-height:90px;resize:vertical}.toggle-row{flex-direction:row!important;align-items:center;justify-content:space-between;padding:11px;border:1px solid var(--border);border-radius:10px;background:#0b0e14}.toggle-row input{width:auto}.builder-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:22px}.hidden{display:none!important}
.chat-layout{display:grid;grid-template-columns:250px 1fr;gap:17px;min-height:680px}.chat-sidebar,.chat-main{border:1px solid var(--border);background:var(--surface);border-radius:17px}.chat-sidebar{padding:17px;display:flex;flex-direction:column}.chat-sidebar img{width:72px;height:72px;object-fit:cover;border-radius:14px;margin-bottom:11px}.chat-sidebar h3{margin:5px 0 16px}.sidebar-block{padding:12px 0;border-top:1px solid var(--border)}.sidebar-block span{display:block;color:var(--muted);font-size:11px;margin-bottom:5px}.sidebar-block b{font-size:13px}.coffee{margin-top:auto;border:1px solid rgba(214,170,115,.25);background:rgba(214,170,115,.08);color:#e5bf8c}
.chat-main{display:flex;flex-direction:column;overflow:hidden}.chat-topline{padding:17px 19px;border-bottom:1px solid var(--border)}.chat-topline h2{margin:4px 0 0}.game-ui{background:#0c0f15;border-bottom:1px solid var(--border)}.ui-toolbar{display:flex;gap:7px;padding:10px 12px;border-bottom:1px solid var(--border);overflow-x:auto}.ui-tab{white-space:nowrap;background:var(--surface2);border:1px solid var(--border);color:var(--muted);padding:8px 10px;border-radius:8px;cursor:pointer}.ui-tab.active{color:var(--secondary);border-color:rgba(93,214,192,.34);background:rgba(93,214,192,.06)}.ui-panel{padding:14px 16px;color:#c4c9d2;line-height:1.8}.npc-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:9px}.npc-card,.state-box{background:var(--surface);border:1px solid var(--border);border-radius:11px;padding:12px}.npc-card span,.state-box small{color:var(--muted);font-size:12px}.state-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:8px}
.chat-stream{flex:1;min-height:460px;max-height:650px;overflow:auto;padding:21px;background:linear-gradient(180deg,#0b0e14,#0e1118)}.message{margin:0 0 18px}.message .bubble{max-width:80%;padding:12px 14px;line-height:1.8;font-size:14px}.message.user{display:flex;justify-content:flex-end}.message.user .bubble{background:#242a37;border-radius:13px}.message.assistant .bubble{border-left:2px solid rgba(156,140,255,.45);padding-left:16px}.usage-bar{display:flex;gap:15px;flex-wrap:wrap;padding:9px 15px;border-top:1px solid var(--border);border-bottom:1px solid var(--border);color:var(--muted);font-size:11px}.usage-bar b{color:var(--text)}.input-area{display:flex;gap:9px;padding:13px}.input-area textarea{min-height:52px}.input-area .primary{width:90px}
.about-wrap{max-width:780px;margin:auto;padding:40px 0}.about-wrap p{color:#bec3cd;line-height:2}
footer{min-height:90px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;color:var(--muted)}footer b{color:var(--text)}
@media(max-width:820px){.hero{grid-template-columns:1fr}.detail-layout{grid-template-columns:1fr}.chat-layout{grid-template-columns:1fr}.chat-sidebar{display:none}.section-head,.builder-header{align-items:flex-start;flex-direction:column}}
@media(max-width:560px){.app-shell{width:min(100% - 20px,1180px)}.hero h1{font-size:42px}.mode-grid,.form-grid{grid-template-columns:1fr}.step span{display:none}.message .bubble{max-width:94%}}

/* Unified BAO/LAB responsive shell */
:root{
  --bao-cyan:#5dd6c0;
  --bao-purple:#9c8cff;
  --bao-warm:#d6aa73;
  --bao-wine:#5d233f;
  --bao-reading:min(780px,100%);
}
body{overflow-x:hidden}
.topbar{gap:18px}
.topbar nav{min-width:0;align-items:center}
.topbar nav a{color:var(--muted);text-decoration:none;padding:9px 12px;border-radius:9px;white-space:nowrap}
.topbar nav a:hover{background:var(--surface2);color:var(--text)}
#chat-view .chat-layout{grid-template-columns:minmax(190px,220px) minmax(0,1fr)}
#chat-view .chat-main{min-width:0}
#chat-view .chat-stream{padding-left:clamp(14px,3vw,34px);padding-right:clamp(14px,3vw,34px)}
#chat-view .message.assistant .bubble{max-width:var(--bao-reading)}
#chat-view .message.user .bubble{max-width:min(72%,680px)}
.primary:focus-visible,.secondary:focus-visible,.text-button:focus-visible,.topbar a:focus-visible,.topbar button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--bao-cyan);outline-offset:2px}

@media(max-width:820px){
  .app-shell{width:min(100% - 20px,1180px)}
  .topbar{height:auto;min-height:64px;align-items:center;padding:8px 0}
  .brand{flex:0 0 auto;font-size:19px}
  .topbar nav{flex:1;overflow-x:auto;overflow-y:hidden;gap:4px;scrollbar-width:none;-webkit-overflow-scrolling:touch;overscroll-behavior-x:contain}
  .topbar nav::-webkit-scrollbar{display:none}
  .topbar nav>*{flex:0 0 auto;white-space:nowrap}
  .topbar nav button,.topbar nav a{padding:8px 10px;font-size:13px}
  .view{padding-top:24px}
  .builder-actions{position:sticky;bottom:0;z-index:8;margin-inline:0;margin-bottom:-12px;padding:10px 12px;background:rgba(9,11,16,.94);backdrop-filter:blur(14px);border-top:1px solid var(--border)}
  #chat-view .message.user .bubble{max-width:94%}
}

@media(max-width:560px){
  .topbar{gap:10px}
  footer{gap:14px;align-items:flex-start;flex-direction:column;padding:24px 0}
}

/* Non-blocking player feedback and lightweight text requests. */
.bao-feedback-toast{position:fixed;right:clamp(12px,3vw,28px);bottom:clamp(76px,8vh,108px);z-index:180;width:min(390px,calc(100vw - 24px));padding:13px 16px;border:1px solid rgba(156,140,255,.42);border-radius:13px;background:rgba(22,25,35,.97);box-shadow:0 18px 54px rgba(0,0,0,.38);color:var(--text);line-height:1.55}
.bao-feedback-toast[hidden]{display:none}
.bao-feedback-toast[data-tone="success"]{border-color:rgba(93,214,192,.5)}
.bao-feedback-toast[data-tone="error"]{border-color:rgba(231,133,126,.58);background:rgba(50,26,30,.98)}
.bao-text-request{width:min(460px,calc(100vw - 28px));padding:0;border:1px solid rgba(156,140,255,.38);border-radius:17px;background:#151923;color:var(--text);box-shadow:0 24px 80px rgba(0,0,0,.55)}
.bao-text-request::backdrop{background:rgba(4,5,9,.72);backdrop-filter:blur(5px)}
.bao-text-request form{display:grid;gap:18px;padding:22px}
.bao-text-request h2{margin:0;font-size:22px}
.bao-text-request label{display:grid;gap:8px;color:var(--muted);font-size:13px}
.bao-text-request-actions{display:flex;justify-content:flex-end;gap:9px}
@media(max-width:560px){.bao-feedback-toast{bottom:82px}.bao-text-request form{padding:18px}}