:root{--bg: #0b1017;--panel: rgba(14, 20, 30, .86);--panel-border: rgba(255, 255, 255, .08);--text: #e9eef5;--muted: #9aa7b8;--accent: #ffd400;--accent-2: #4fb3ff;--font: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", "PingFang SC", "Noto Sans SC", sans-serif}*{box-sizing:border-box}html,body{margin:0;height:100%;background:var(--bg);color:var(--text);font-family:var(--font);overflow:hidden}canvas#view{display:block;width:100%;height:100%;height:100dvh;outline:none;touch-action:none;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}kbd{display:inline-block;min-width:1.4em;padding:.05em .4em;margin:0 .1em;border-radius:4px;background:#ffffff1f;border:1px solid rgba(255,255,255,.2);font:600 .8em/1.5 var(--font);text-align:center;color:#fff}button{font-family:inherit}.hidden{opacity:0!important;pointer-events:none!important}.overlay{position:fixed;inset:0;display:flex;z-index:20;background:radial-gradient(1200px 700px at 20% 10%,#1d2b40,#0b1017 60%);transition:opacity .5s ease}.overlay.hidden{opacity:0;pointer-events:none}.welcome-left{flex:1 1 55%;display:flex;flex-direction:column;padding:48px 56px;min-width:0}.brand-row{display:flex;align-items:center;gap:18px;height:72px}.brand-row .logo{display:block;width:auto;object-fit:contain}.brand-row .logo-ovi{height:72px;margin-left:-6px}.brand-row .logo-ubc{height:64px;border-radius:8px;box-shadow:0 0 0 1px var(--panel-border)}.brand-divider{width:1px;height:48px;background:#ffffff2e}.welcome-left h1{font-size:clamp(30px,4vw,52px);margin:14px 0 12px;line-height:1.05}.welcome-message{font-size:clamp(15px,1.4vw,19px);color:var(--muted);max-width:640px;line-height:1.55;margin:0 0 20px}.preview-wrap{position:relative;flex:1;min-height:240px;border-radius:18px;overflow:hidden;background:radial-gradient(600px 400px at 50% 90%,rgba(79,179,255,.18),transparent 70%);border:1px solid var(--panel-border)}.preview-wrap canvas{width:100%;height:100%;display:block;cursor:grab;touch-action:pan-y}.preview-hint{position:absolute;right:14px;bottom:10px;font-size:12px;color:var(--muted)}.welcome-right{flex:0 0 380px;display:flex;flex-direction:column;padding:48px 32px 40px;background:var(--panel);border-left:1px solid var(--panel-border);backdrop-filter:blur(10px)}.welcome-right h2{margin:0 0 16px;font-size:18px;font-weight:600}.char-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px;overflow:auto;flex:1 1 auto;min-height:0}.char-item{display:grid;grid-template-columns:38px 1fr;grid-template-rows:auto auto;column-gap:12px;align-items:center;padding:8px 10px;border-radius:12px;cursor:pointer;border:1px solid transparent;transition:background .15s,border-color .15s}.char-item:hover{background:#ffffff0d}.char-item.active{background:#4fb3ff1f;border-color:#4fb3ff73}.avatar{grid-row:span 2;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-weight:700;background:linear-gradient(135deg,#3a7bd5,#6ee7f7);color:#06111f}.char-name{font-weight:600}.char-role{font-size:12px;color:var(--muted)}.char-detail{flex:0 0 auto;margin-top:18px;padding-top:18px;border-top:1px solid var(--panel-border)}.detail-name{margin:0 0 4px;font-size:22px}.detail-role{color:var(--accent-2);font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.08em}.detail-bio{color:var(--muted);line-height:1.5;min-height:3.2em}button.start{width:100%;padding:14px 18px;border:0;border-radius:12px;font-size:16px;font-weight:700;color:#071018;background:var(--accent);cursor:pointer;transition:transform .1s,filter .15s}button.start:hover:not(:disabled){filter:brightness(1.08);transform:translateY(-1px)}button.start:disabled{opacity:.4;cursor:default}.welcome-footer{position:absolute;left:0;right:0;bottom:14px;text-align:center;font-size:13px;color:var(--muted);pointer-events:none}.welcome-footer a{color:var(--accent-2);text-decoration:none;pointer-events:auto}.welcome-footer a:hover{text-decoration:underline}.welcome-footer .heart{color:#ff5c7a}#hud{position:fixed;inset:0;pointer-events:none;z-index:10}#hud>*{pointer-events:auto}#hud>.prompt,#hud>.toast,#hud>.stats,#hud>.hints,#hud>.hints-touch{pointer-events:none}.loading{position:absolute;inset:0;display:grid;place-items:center;background:#060a10eb;transition:opacity .4s}.loading-card{width:min(440px,86vw);padding:26px 28px;border-radius:16px;background:var(--panel);border:1px solid var(--panel-border)}.loading-title{font-weight:700;font-size:18px;margin-bottom:14px}.bar{height:8px;border-radius:99px;background:#ffffff1a;overflow:hidden}.bar-fill{height:100%;width:0;background:linear-gradient(90deg,var(--accent-2),var(--accent));transition:width .15s}.loading-text{margin-top:10px;color:var(--muted);font-size:13px}.mode-switch{position:absolute;top:16px;right:16px;display:flex;gap:4px;padding:4px;border-radius:12px;background:var(--panel);border:1px solid var(--panel-border)}.mode-switch button{padding:8px 12px;border:0;border-radius:9px;background:transparent;color:var(--muted);font-size:13px;font-weight:600;cursor:pointer;touch-action:manipulation;-webkit-tap-highlight-color:transparent}.mode-switch .short{display:none}.mode-switch button.active{background:#4fb3ff2e;color:#fff}.hints{position:absolute;left:16px;bottom:16px;display:flex;flex-wrap:wrap;gap:8px 16px;font-size:12px;color:var(--muted);padding:10px 14px;border-radius:12px;background:var(--panel);border:1px solid var(--panel-border);max-width:min(720px,80vw)}#hud[data-mode=fixed] .mouse-hint{display:none}.stats{position:absolute;top:16px;left:16px;font:12px/1.4 ui-monospace,SFMono-Regular,Menlo,monospace;color:var(--muted);padding:6px 10px;border-radius:8px;background:#00000059;white-space:pre}.prompt{position:absolute;left:50%;bottom:88px;transform:translate(-50%);display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:999px;background:#0a0e14d9;border:1px solid rgba(255,212,0,.55);box-shadow:0 0 0 4px #ffd40014;transition:opacity .15s;font-size:15px}.prompt kbd{background:var(--accent);color:#111;border-color:transparent;font-size:14px}.prompt-zh{color:var(--muted);font-size:13px}.toast{position:absolute;left:50%;top:22px;transform:translate(-50%);padding:8px 14px;border-radius:10px;background:#0a0e14d9;border:1px solid var(--panel-border);font-size:13px;transition:opacity .3s}.modal{position:absolute;inset:0;display:grid;place-items:center;background:#04080e8c;backdrop-filter:blur(4px);transition:opacity .2s}.modal-card{position:relative;width:min(560px,92vw);max-height:86vh;max-height:86dvh;overflow:auto;touch-action:pan-y;-webkit-overflow-scrolling:touch;padding:26px 28px 20px;border-radius:18px;background:var(--panel);border:1px solid rgba(255,212,0,.35);box-shadow:0 30px 80px #00000080}.modal-card .close{position:absolute;top:10px;right:12px;width:34px;height:34px;border:0;border-radius:50%;background:#ffffff14;color:#fff;font-size:20px;cursor:pointer}.modal-kicker{font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--accent-2)}.modal-kicker code{text-transform:none;letter-spacing:0;color:var(--muted)}.modal-card h2{margin:6px 0 2px;font-size:26px}.modal-zh{color:var(--muted);margin-bottom:10px}.modal-images{display:flex;gap:8px;overflow-x:auto;margin:12px 0}.modal-images img{flex:none;width:160px;height:160px;object-fit:cover;border-radius:50%}.modal-card p{line-height:1.6;color:#d5dde8}.modal-links{display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}.modal-links a{color:var(--accent-2)}.modal-foot{margin-top:16px;font-size:12px;color:var(--muted)}.modal-foot .foot-touch{display:none}#hud>.touch{position:absolute;inset:0;pointer-events:none;transition:opacity .25s}.touch.off,#hud:not(.started)>.touch{visibility:hidden;opacity:0}.joy-zone{position:absolute;left:0;bottom:0;width:46%;height:62%;pointer-events:auto;touch-action:none}.joy-base{position:absolute;left:calc(28px + env(safe-area-inset-left,0px));bottom:calc(28px + env(safe-area-inset-bottom,0px));width:124px;height:124px;border-radius:50%;background:#0a0e146b;border:2px solid rgba(255,255,255,.22);backdrop-filter:blur(3px);transition:transform .2s ease-out,border-color .15s,box-shadow .15s;will-change:transform}.joy-base:after{content:"";position:absolute;inset:25px;border-radius:50%;border:1px dashed rgba(255,255,255,.18)}.joy-base.active{transition:border-color .15s,box-shadow .15s}.joy-base.running{border-color:#ffd400e6;box-shadow:0 0 0 5px #ffd40029}.joy-knob{position:absolute;left:50%;top:50%;width:54px;height:54px;margin:-27px 0 0 -27px;border-radius:50%;background:#4fb3ffc7;border:2px solid rgba(255,255,255,.55);box-shadow:0 4px 14px #0006;transition:transform .2s ease-out,background .15s;will-change:transform}.joy-base.active .joy-knob{transition:background .15s}.joy-base.running .joy-knob{background:var(--accent)}.touch-buttons{position:absolute;right:calc(22px + env(safe-area-inset-right,0px));bottom:calc(26px + env(safe-area-inset-bottom,0px));display:flex;flex-direction:column;align-items:flex-end;gap:14px;pointer-events:auto;touch-action:none}.touch-row{display:flex;align-items:center;gap:12px}.interact-label{display:none;max-width:46vw;padding:8px 12px;border-radius:999px;background:#0a0e14d9;border:1px solid rgba(255,212,0,.55);font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;pointer-events:none}.interact-label.show{display:block}.tbtn{display:grid;place-items:center;width:52px;height:52px;padding:0;border-radius:50%;border:2px solid rgba(255,255,255,.28);background:#0a0e148c;color:#fff;backdrop-filter:blur(3px);cursor:pointer;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent;touch-action:none;transition:transform .08s,background .12s}.tbtn svg{width:24px;height:24px}.tbtn:active{transform:scale(.92);background:#fff3}.tbtn.interact{width:78px;height:78px;opacity:.45}.tbtn.interact svg{width:34px;height:34px}.tbtn.interact.ready{opacity:1;background:var(--accent);color:#111;border-color:transparent;animation:interact-pulse 1.6s ease-in-out infinite}@keyframes interact-pulse{0%,to{box-shadow:0 0 0 4px #ffd40024}50%{box-shadow:0 0 0 12px #ffd40042}}.tbtn.fullscreen{position:absolute;top:calc(14px + env(safe-area-inset-top,0px));left:calc(14px + env(safe-area-inset-left,0px));width:40px;height:40px;pointer-events:auto}.tbtn.fullscreen svg{width:18px;height:18px}.hints-touch{display:none;position:absolute;left:50%;top:calc(100px + env(safe-area-inset-top,0px));transform:translate(-50%);gap:14px;font-size:12px;color:var(--muted);padding:6px 12px;border-radius:999px;background:#0a0e148c;white-space:nowrap;max-width:94vw;overflow:hidden}@keyframes hint-fade{to{opacity:0}}#hud[data-input=touch] .hints{display:none}#hud[data-input=touch] .hints-touch{display:flex}#hud.started[data-input=touch] .hints-touch{animation:hint-fade 1s ease 12s forwards}#hud[data-input=touch] .toast{top:calc(62px + env(safe-area-inset-top,0px));max-width:92vw;text-align:center}#hud[data-input=touch] .prompt{display:none}#hud[data-input=touch] .stats{left:calc(62px + env(safe-area-inset-left,0px));top:calc(16px + env(safe-area-inset-top,0px))}#hud[data-input=touch] .mode-switch{top:calc(12px + env(safe-area-inset-top,0px));right:calc(12px + env(safe-area-inset-right,0px))}#hud[data-input=touch] .mode-switch button{min-height:40px}#hud[data-input=touch] .modal-card .close{width:42px;height:42px;font-size:24px}#hud[data-input=touch] .modal-foot .foot-keys{display:none}#hud[data-input=touch] .modal-foot .foot-touch{display:inline}@media(max-width:640px){.mode-switch .long{display:none}.mode-switch .short{display:inline}#hud[data-input=touch] .stats{display:none}.hints-touch{font-size:11px;gap:10px}.modal-images img{width:120px;height:120px}}@media(max-height:460px){.joy-base{width:108px;height:108px;left:calc(20px + env(safe-area-inset-left,0px));bottom:calc(20px + env(safe-area-inset-bottom,0px))}.joy-base:after{inset:17px}.joy-knob{width:48px;height:48px;margin:-24px 0 0 -24px}.tbtn.interact{width:68px;height:68px}.touch-buttons{gap:10px;bottom:calc(16px + env(safe-area-inset-bottom,0px))}}@media(max-width:860px){.overlay{flex-direction:column;overflow:auto}.welcome-left{padding:28px 22px 10px}.brand-row{height:56px;gap:14px}.brand-row .logo-ovi{height:56px}.brand-row .logo-ubc{height:48px}.brand-divider{height:34px}.welcome-footer{position:static;padding:0 16px 16px;background:var(--panel)}.preview-wrap{min-height:220px}.welcome-right{flex:0 0 auto;padding:22px;border-left:0;border-top:1px solid var(--panel-border)}.char-list{flex:0 0 auto;max-height:42vh}.char-list{max-height:none}}