*{box-sizing:border-box}body{color:#1f2937;background:#f9fafb;margin:0;font:14px/1.6 system-ui,Hiragino Sans,Noto Sans JP,sans-serif}button{font:inherit;cursor:pointer}input,textarea{font:inherit}.chat{background:#fff;flex-direction:column;height:100vh;display:flex}.chat header{color:#fff;justify-content:space-between;align-items:center;padding:12px 16px;font-weight:600;display:flex}.chat header button{color:#fff;background:#fff3;border:0;border-radius:6px;padding:4px 8px;font-size:12px}.msgs{flex-direction:column;flex:1;gap:8px;padding:12px;display:flex;overflow-y:auto}.bubble{white-space:pre-wrap;word-break:break-word;border-radius:14px;max-width:82%;padding:8px 12px}.bubble.user{color:#fff;align-self:flex-end}.bubble.ai,.bubble.operator{background:#f3f4f6;align-self:flex-start}.bubble.operator{background:#e0f2fe}.bubble .who{color:#6b7280;font-size:11px;display:block}.sys{color:#6b7280;align-self:center;font-size:12px}.chat form{border-top:1px solid #e5e7eb;gap:8px;padding:10px;display:flex}.chat input{border:1px solid #d1d5db;border-radius:8px;flex:1;padding:8px 10px}.chat form button{color:#fff;border:0;border-radius:8px;padding:0 14px}.admin{max-width:1180px;margin:0 auto;padding:16px;font-size:16px;line-height:1.7}.tabs{border-bottom:1px solid #e5e7eb;gap:4px;margin-bottom:16px;display:flex}.tabs button{background:0 0;border:0;border-bottom:2px solid #0000;padding:8px 14px}.tabs button.on{color:#2563eb;border-color:#2563eb;font-weight:600}.panel{background:#fff;border:1px solid #e5e7eb;border-radius:10px;padding:16px}.row{gap:8px;margin-bottom:8px;display:flex}.admin input,.admin textarea{border:1px solid #d1d5db;border-radius:6px;width:100%;padding:10px}.btn{color:#fff;white-space:nowrap;background:#2563eb;border:0;border-radius:6px;padding:10px 16px;font-size:15px}.btn.sub{color:#1f2937;background:#e5e7eb}.btn.danger{background:#dc2626}.split{grid-template-columns:360px 1fr;gap:16px;min-height:520px;display:grid}.list{max-height:70vh;overflow-y:auto}.item{cursor:pointer;border:1px solid #0000;border-radius:8px;padding:8px 10px}.item:hover,.item.on{background:#eff6ff;border-color:#bfdbfe}.item small{color:#6b7280;text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.badge{background:#e5e7eb;border-radius:99px;margin-right:6px;padding:1px 8px;font-size:13px}.badge.waiting{color:#991b1b;background:#fecaca}.badge.human{color:#166534;background:#bbf7d0}table{border-collapse:collapse;width:100%}td,th{text-align:left;border-bottom:1px solid #f3f4f6;padding:6px 8px}pre{color:#e5e7eb;background:#111827;border-radius:8px;padding:12px;overflow-x:auto}.choices{flex-wrap:wrap;gap:6px;display:flex}.choices button{background:#fff;border:1px solid;border-radius:99px;padding:4px 12px}.choices button:disabled{opacity:.5}.admin select{border:1px solid #d1d5db;border-radius:6px;padding:10px;font-size:16px}.chat form .clip{color:#374151;background:#f3f4f6;padding:0 10px;font-size:18px}.chat form .clip:disabled{opacity:.5}.att-img{border-radius:8px;max-width:100%;max-height:220px;display:block}.att-file{color:inherit;word-break:break-all;text-decoration:underline}.bubble.user .att-file{color:#fff}.bubble.has-img{padding:0;background:0 0!important}.bubble.has-img .att-img{box-shadow:0 1px 4px #00000040}.admin .att-img{max-height:160px;margin:4px 0}.admin .att-file{color:#1d4ed8}