:root{--bg:#f4f7fb;--surface:#fffffff0;--surface-2:#fff;--border:#e4eaf4;--text:#1f2937;--muted:#6b7280;--primary:#2563eb;--primary-soft:#e8f0ff;--success:#10b981;--warning:#f59e0b;--danger:#ef4444;--shadow:0 16px 40px #0f172a14;--radius:22px;--radius-sm:14px;--header-h:76px;--safe-bottom:calc(12px + env(safe-area-inset-bottom))}*{box-sizing:border-box}html,body{height:100%}body{color:var(--text);background:radial-gradient(circle at 0 0,#3b82f61f,#0000 28%),linear-gradient(#f8fbff 0%,#f4f7fb 100%);margin:0;font-family:Segoe UI,Noto Sans TC,Arial,sans-serif;overflow:hidden}button,input,textarea,select{font:inherit}button{cursor:pointer;color:inherit;background:0 0;border:0}.hidden{display:none!important}.app{flex-direction:column;height:100dvh;display:flex;overflow:hidden}.topbar{z-index:50;min-height:var(--header-h);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#ffffffd6;border-bottom:1px solid 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var(--border);background:linear-gradient(#fffffff5,#f8fafcfa);justify-content:space-between;align-items:center;gap:14px;display:flex}.takeover-copy{flex-direction:column;gap:4px;min-width:0;display:flex}.takeover-title{color:#0f172a;font-size:15px;font-weight:800}.takeover-subtitle{color:var(--muted);font-size:13px;line-height:1.5}.takeover-btn{background:linear-gradient(135deg, var(--success), #00be2a);color:#fff;border-radius:16px;flex:none;min-width:118px;height:52px;padding:0 18px;font-weight:800;box-shadow:0 12px 24px #2563eb38}.takeover-pane.disabled{justify-content:center}.takeover-pane.disabled .takeover-copy{text-align:center;align-items:center}@media (width<=1180px){.layout{grid-template-columns:300px minmax(0,1fr)}.info-panel.desktop-info{display:none}}@media (width<=820px){:root{--header-h:84px}body{background:#eef2f7}.desktop-only{display:none!important}.mobile-only{display:block}.topbar{align-items:flex-start;padding:10px 12px}.brand{align-items:flex-start;gap:10px}.brand-logo{border-radius:14px;width:38px;height:38px}.brand-title{font-size:17px}.header-filters{gap:6px}.filter-chip{padding:7px 10px;font-size:12px}.filter-chip b{font-size:14px}.agent-button{border-radius:16px;padding:6px}.agent-copy,.agent-gear,.layout{display:none}.mobile-app{min-height:0;height:calc(100dvh - var(--header-h));flex:1;position:relative;overflow:hidden}.mobile-list-screen,.chat-mobile-shell{height:100%}.mobile-list-screen .panel,.chat-mobile-shell .chat-panel{height:100%;box-shadow:none;border-left:0;border-right:0;border-radius:0}.queue-wrap{padding:12px 12px 16px}.queue-item{border-radius:22px;grid-template-columns:auto 1fr;gap:10px;padding:14px;box-shadow:0 10px 22px #0f172a0d}.queue-item>.tag{justify-self:start}.panel-header{padding:14px 12px}.chat-mobile-shell{inset:var(--header-h) 0 0 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16px}.system-badge{color:#475569;text-align:center;background:#e2e8f0e6;border-radius:999px;max-width:min(80%,560px);padding:8px 14px;font-size:12px;font-weight:700;box-shadow:inset 0 0 0 1px #cbd5e1cc}.bubble.image-bubble{width:fit-content;max-width:min(320px,72%);padding:8px}.bubble.image-bubble .bubble-meta{margin-top:8px;padding:0 4px 2px}.bubble-image-wrap{background:#fff;border:1px solid #dbe4f0;border-radius:16px;width:auto;max-width:100%;margin-top:0;line-height:0;display:inline-block;overflow:hidden;box-shadow:0 8px 18px #0f172a0d}.bubble-image{background:linear-gradient(#f8fbff,#eef4ff);width:auto;max-width:min(100%,280px);height:auto;max-height:320px;display:block}.lightbox{z-index:200;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172ab8;justify-content:center;align-items:center;padding:24px;display:none;position:fixed;inset:0}.lightbox.open{display:flex}.lightbox-panel{background:#ffffff0d;border-radius:24px;width:min(96vw,1120px);max-height:92vh;position:relative;overflow:hidden;box-shadow:0 24px 60px #00000047}.lightbox-image{object-fit:contain;background:linear-gradient(#0f172a14,#0f172a24);width:100%;max-height:92vh;display:block}.lightbox-caption{color:#fff;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#0f172a94;border-radius:16px;padding:12px 14px;font-size:14px;line-height:1.5;position:absolute;bottom:16px;left:16px;right:16px}.lightbox-close{color:#fff;z-index:2;background:#0f172a99;border:1px solid #ffffff2e;border-radius:999px;place-items:center;width:44px;height:44px;font-size:20px;display:grid;position:absolute;top:14px;right:14px}.lightbox-close:hover{background:#0f172ac7;transform:translateY(-1px)}.bubble-attachment{cursor:pointer}:root[data-theme=dark]{--bg:#0b1220;--surface:#0f172ae0;--surface-2:#111827;--border:#243041;--text:#e5edf7;--muted:#94a3b8;--primary:#60a5fa;--primary-soft:#60a5fa29;--success:#22c55e;--warning:#fbbf24;--danger:#f87171;--shadow:0 18px 42px #0000005c}:root[data-theme=dark] body{color:var(--text);background:radial-gradient(circle at 0 0,#3b82f629,#0000 28%),linear-gradient(#0b1220 0%,#0f172a 100%)}:root[data-theme=dark] .topbar{background:#0f172ac7;border-bottom:1px solid #243041eb}:root[data-theme=dark] .brand-logo{background:linear-gradient(135deg,#3b82f6,#2563eb 58%,#0ea5e9);box-shadow:0 12px 24px #2563eb3d}:root[data-theme=dark] .filter-chip{color:#c7d2e3;background:#172233;border-color:#243041}:root[data-theme=dark] .filter-chip b{color:#e2e8f0;background:#ffffff0d;box-shadow:inset 0 0 0 1px #94a3b81f}:root[data-theme=dark] .filter-chip.has-items b{color:#fff;background:linear-gradient(135deg,#ef4444,#f97316)}:root[data-theme=dark] .filter-chip.active{color:#93c5fd;background:#2563eb2e;border-color:#60a5fa38;box-shadow:inset 0 0 0 1px #60a5fa1f}:root[data-theme=dark] .agent-button{border-color:var(--border);background:#0f172adb;box-shadow:0 8px 20px #0000003d}:root[data-theme=dark] .avatar-slot{color:#dbeafe;background:linear-gradient(135deg,#1e3a8a,#1d4ed8)}:root[data-theme=dark] .agent-gear{color:#94a3b8}:root[data-theme=dark] .status-dot.offline{background:#64748b;box-shadow:0 0 0 4px #64748b29}:root[data-theme=dark] .panel,:root[data-theme=dark] .modal-panel,:root[data-theme=dark] .drawer-panel,:root[data-theme=dark] .login-card{background:#0f172ae0;border-color:#243041eb;box-shadow:0 20px 50px #00000057}:root[data-theme=dark] .panel-header,:root[data-theme=dark] .chat-head,:root[data-theme=dark] 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