:root{--bg: #e8eef5;--panel: rgba(255, 255, 255, .93);--line: rgba(20, 40, 70, .12);--text: #1d2733;--muted: #5b6b7d;--accent: #2f6fdb;--accent-hover: #255fc2;--danger: #c93c3c;--radius: 14px;--shadow: 0 6px 24px rgba(20, 40, 70, .14);font-family:Hiragino Sans,Noto Sans JP,Yu Gothic UI,Meiryo,system-ui,sans-serif;color:var(--text)}*{box-sizing:border-box}[hidden]{display:none!important}html,body{margin:0;height:100%;overflow:hidden;background:var(--bg)}#scene{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;height:100%;display:block;touch-action:none;outline:none}button,select,input{font:inherit;color:inherit}button{cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:10px;padding:8px 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10px}.panel.left{top:auto;left:8px;right:8px;bottom:8px;width:auto;max-height:46vh}.panel.left.collapsed{max-height:56px;overflow:hidden}.panel-toggle{display:block;width:100%;margin-bottom:12px;font-weight:700}.panel.right{top:68px;left:8px;right:8px;width:auto}.help{left:8px;right:8px;top:68px;max-width:none}.avatar-chip{top:136px;right:8px}.place-badge{top:186px;right:8px}.chat{left:8px;right:8px;bottom:8px;width:auto}.chat-log{max-height:64px}.prompt,.prompt.seated{bottom:150px}.prompt{bottom:16px}.prompt.seated{left:50%;right:auto;bottom:8px;transform:translate(-50%)}}@media(max-width:480px){.admin-link{display:none}.menu .menu-admin{display:block}}.campus h3{margin:14px 0 6px;font-size:13px}.campus .bcard{margin-top:10px;padding:10px;border:1px solid var(--line);border-radius:12px;background:#fff}.campus .bcard.active{border-color:var(--accent);box-shadow:0 0 0 2px #2f6fdb26}.campus .bhead{display:flex;gap:6px;align-items:center}.campus .bhead input{flex:1;min-width:0;padding:6px 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img{width:56px;height:44px;object-fit:contain;border-radius:6px;background:linear-gradient(#f4f7fb,#e8eef5)}@media(max-width:760px){body.fly .undo-bar{left:8px;right:auto;bottom:150px;transform:none}}