:root{--qq-blue: #12b7f5;--qq-blue-strong: #0099ff;--bg: #f2f3f5;--card: #ffffff;--line: #e5e6eb;--text: #1a1a1a;--text-2: #8a8f99;--text-3: #b8bcc4;--bubble-self: #0099ff;--bubble-other: #ffffff;--danger: #f5483b;--radius-bubble: 18px;--radius-card: 14px;--panel: var(--card);--panel-soft: #f7f8fa;--muted: var(--text-2);--line-strong: #dcdfe5;--primary: var(--qq-blue-strong);--primary-weak: #e8f6ff;--hover: #f2f3f5;--ai: #7c4dff;--ai-weak: #f4efff;--ai-bubble: #fbf9ff;--warn: #b7791f;--warn-bg: #fff7e0;--warn-line: #f2d38b;--ok: #18a058;--radius: var(--radius-card);--radius-sm: 10px;--font: -apple-system, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;--shadow-sm: 0 1px 2px rgba(26, 26, 26, .06);--shadow-md: 0 10px 30px rgba(26, 26, 26, .12);--shadow-lg: 0 24px 64px rgba(26, 26, 26, .18);color-scheme:light}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}html,body{max-width:100%}html{overflow-x:hidden}body{overflow-x:hidden;overflow-x:clip}body{font-family:var(--font);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%;text-size-adjust:100%;font-size:16px;line-height:1.5}button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}a{color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;padding:0 14px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:var(--card);color:var(--text);font-weight:500;transition:background .15s,border-color .15s,transform .06s}.btn:hover:not(:disabled){background:var(--hover);border-color:#c3cbda}.btn:active:not(:disabled){transform:translateY(1px)}.btn--primary{background:var(--primary);border-color:var(--primary);color:#fff}.btn--primary:hover:not(:disabled){background:#1f70ec;border-color:#1f70ec}.btn--ghost{background:transparent;border-color:transparent;color:var(--primary)}.btn--ghost:hover:not(:disabled){background:var(--primary-weak);border-color:transparent}.btn--danger{color:var(--danger);border-color:#f3c9ca}.btn--danger:hover:not(:disabled){background:#fff5f5;border-color:#eba9ab}.btn--sm{height:30px;padding:0 10px;font-size:13px}.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:var(--radius-sm);border:1px solid transparent;background:transparent;color:var(--text-2);font-size:15px;line-height:1;transition:background .15s,color .15s}.icon-btn:hover{background:#eef2f9;color:var(--text)}.link-btn{margin-left:6px;border:none;background:none;color:var(--primary);padding:0;font:inherit;text-decoration:underline}.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}.field__label{font-size:13px;color:var(--text-2);font-weight:500}.input{width:100%;min-height:38px;padding:8px 12px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:var(--card);transition:border-color .15s,box-shadow .15s}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px #2b7fff29}.input--area{resize:vertical;min-height:72px;line-height:1.5}.form-error{margin:6px 0 12px;padding:8px 10px;border-radius:var(--radius-sm);background:#fdecec;border:1px solid #f6c6c7;color:#b4282c;font-size:13px}.avatar{position:relative;display:inline-flex;align-items:center;justify-content:center;flex:none;border-radius:50%;color:#fff;font-weight:600;user-select:none}.avatar--sm{width:34px;height:34px;font-size:14px}.avatar--md{width:42px;height:42px;font-size:16px}.avatar--lg{width:56px;height:56px;font-size:20px}.avatar--ai{box-shadow:0 0 0 2px #fff,0 0 0 4px var(--ai)}.avatar__letter{transform:translateY(.5px)}.avatar__art{position:absolute;inset:0;width:100%;height:100%;border-radius:50%;display:block}.avatar__ai{position:absolute;right:-6px;bottom:-4px;min-width:22px;padding:1px 4px;border-radius:6px;background:var(--ai);color:#fff;font-size:10px;font-weight:700;letter-spacing:.3px;border:1.5px solid #fff;line-height:1.3}.splash{height:100dvh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px}.splash__logo{font-size:30px;font-weight:700;color:var(--primary);letter-spacing:4px}.splash__hint{color:var(--muted);margin:0}.auth{min-height:100dvh;display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,460px);align-items:center;gap:64px;padding:48px clamp(24px,7vw,120px);background:radial-gradient(900px 460px at 12% -10%,#e3edff,#e3edff00 62%),radial-gradient(760px 400px at 100% 110%,#f0e9ff,#f0e9ff00 60%),var(--bg)}.auth__brand{max-width:460px}.auth__logo{font-size:44px;font-weight:700;letter-spacing:8px;color:var(--primary)}.auth__slogan{margin:10px 0 18px;font-size:17px;color:var(--text-2)}.auth__bullets{margin:0;padding-left:18px;color:var(--muted);display:grid;gap:6px}.auth__panel{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px 26px 20px;box-shadow:var(--shadow-md)}.tabs{display:flex;gap:6px;padding:4px;background:var(--hover);border-radius:10px;margin-bottom:20px}.tab{flex:1;height:36px;border:none;border-radius:8px;background:transparent;color:var(--text-2);font-weight:500;transition:background .15s,color .15s,box-shadow .15s}.tab--active{background:var(--card);color:var(--primary);box-shadow:var(--shadow-sm)}.auth__submit{width:100%;height:42px;margin-top:4px;font-size:15px}.auth__hint{margin:14px 0 0;font-size:12px;color:var(--muted);line-height:1.6}.chat{display:grid;grid-template-columns:300px minmax(0,1fr) 288px;height:100dvh;background:var(--bg)}.conv{display:flex;flex-direction:column;min-width:0;background:var(--panel);border-right:1px solid var(--line)}.conv__head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 12px 10px;border-bottom:1px solid var(--line)}.conv__me{display:flex;align-items:center;gap:9px;min-width:0}.conv__me-text{display:flex;flex-direction:column;min-width:0}.conv__me-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:104px}.conn{font-size:12px;line-height:1.4}.conn--on{color:var(--ok)}.conn--off{color:var(--warn)}.conv__actions{display:flex;gap:2px}.conv__title{display:flex;align-items:center;gap:8px;padding:12px 14px 6px;font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.4px}.conv__count{padding:0 6px;border-radius:999px;background:var(--hover);color:var(--muted);font-size:11px}.conv__list{list-style:none;margin:0;padding:0 8px 10px;overflow-y:auto;flex:1}.conv__empty{padding:24px 12px;color:var(--muted);font-size:13px}.conv__item{position:relative;width:100%;display:flex;align-items:center;gap:10px;padding:9px 10px;border:none;border-radius:var(--radius);background:transparent;text-align:left;transition:background .14s}.conv__item:hover{background:var(--hover)}.conv__item--active{background:var(--primary-weak)}.conv__body{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}.conv__row{display:flex;align-items:center;gap:6px;min-width:0}.conv__name{flex:1;min-width:0;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conv__time{font-size:12px;color:var(--muted);flex:none}.conv__preview{flex:1;min-width:0;font-size:12.5px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge-dot{flex:none;min-width:18px;height:18px;padding:0 5px;border-radius:999px;background:#ff4d4f;color:#fff;font-size:11px;font-weight:600;line-height:18px;text-align:center}.conv__ai{flex:none;padding:0 5px;border-radius:6px;background:var(--ai-weak);color:var(--ai);font-size:10px;font-weight:700;line-height:15px;border:1px solid #ddd0ff}.chat__main{display:flex;flex-direction:column;min-width:0;min-height:0;background:var(--bg)}.chat__head{display:flex;align-items:center;gap:10px;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--line)}.chat__back,.chat__members-btn{display:none}.chat__title-block{flex:1;min-width:0}.chat__title{margin:0;font-size:17px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat__subtitle{margin:0;font-size:12px;color:var(--text-2)}.chat__head-actions{display:flex;align-items:center;gap:4px;flex:none}.banner{display:flex;align-items:center;gap:8px;padding:7px 16px;font-size:13px;border-bottom:1px solid transparent}.banner--warn{background:var(--warn-bg);border-bottom-color:var(--warn-line);color:var(--warn)}.banner__hint{margin-left:auto;font-size:12px;color:#9a7f45}.banner__spinner{width:12px;height:12px;border-radius:50%;border:2px solid #e3c983;border-top-color:var(--warn);animation:spin .9s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.messages{flex:1;min-height:0;overflow-y:auto;overflow-x:hidden;padding:18px 20px 8px;scroll-behavior:smooth}.messages--empty{display:flex;align-items:center;justify-content:center}.messages__inner{display:flex;flex-direction:column;gap:14px;max-width:920px;margin:0 auto;width:100%}.messages__loading{text-align:center;color:var(--muted);font-size:13px;padding:28px 0}.empty-state{text-align:center;color:var(--muted)}.empty-state__title{margin:0 0 6px;font-size:16px;color:var(--text-2)}.empty-state__hint{margin:0;font-size:13px}.day-sep{display:flex;align-items:center;gap:10px;color:var(--text-3);font-size:12px;margin:6px 0}.day-sep:before,.day-sep:after{content:"";flex:1;height:1px;background:var(--line)}.msg{display:flex;align-items:flex-start;gap:10px;max-width:100%;transition:transform .22s ease,opacity .22s ease,background .3s ease}.msg--mine{flex-direction:row-reverse}.msg__col{display:flex;flex-direction:column;min-width:0;max-width:min(78%,640px);gap:3px}.msg--mine .msg__col{align-items:flex-end}.msg__head{display:flex;align-items:center;gap:6px;padding-left:2px}.msg__name{font-size:13px;color:var(--text-2);font-weight:500}.ai-badge{padding:0 5px;border-radius:5px;background:var(--ai);color:#fff;font-size:10px;font-weight:700;letter-spacing:.4px;line-height:15px;cursor:help}.msg__owner{font-size:11px;color:#9b8ac4;cursor:help;border-bottom:1px dotted #cbbcf0}.bubble{padding:10px 14px;border-radius:var(--radius-bubble) var(--radius-bubble) var(--radius-bubble) var(--radius-bubble);border-top-left-radius:4px;background:var(--bubble-other);border:1px solid var(--line);box-shadow:0 1px 2px #1a1a1a0a;max-width:100%}.bubble__body{margin:0;font-size:16px;line-height:1.5;white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere}.msg--mine .bubble{background:var(--bubble-self);border-color:var(--bubble-self);color:#fff;border-radius:var(--radius-bubble);border-top-left-radius:var(--radius-bubble);border-top-right-radius:4px;box-shadow:none}.msg--ai .bubble{border:1.5px solid rgba(124,77,255,.55);background:var(--ai-bubble);box-shadow:0 2px 10px #7c4dff14;border-top-left-radius:4px;border-top-right-radius:var(--radius-bubble)}.msg--optimistic{opacity:.55;transform:translateY(-4px)}.msg--failed{opacity:.85}.msg--flash .bubble{animation:flash 1.3s ease}@keyframes flash{0%,to{box-shadow:var(--shadow-sm)}20%,60%{box-shadow:0 0 0 3px #2b7fff59}}.msg__foot{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-2);padding:0 2px}.msg--mine .msg__foot{flex-direction:row-reverse}.msg__pending{color:var(--primary)}.msg__retry{border:none;background:none;color:var(--danger);padding:0;font-size:12px;text-decoration:underline}.msg__reply{border:none;background:none;color:var(--text-2);padding:0;font-size:12px;opacity:0;transition:opacity .15s}.msg:hover .msg__reply{opacity:1}.msg__reply:hover{color:var(--primary)}.quote{display:flex;align-items:center;gap:4px;max-width:100%;padding:4px 9px;border-radius:8px;border:1px solid #ddd0ff;border-left:3px solid var(--ai);background:var(--ai-weak);color:#5f4b8b;font-size:12px;text-align:left;overflow:hidden;white-space:nowrap;transition:background .15s}.quote:hover{background:#ece2ff}.quote__label{flex:none;font-weight:600;color:var(--ai)}.quote__text{min-width:0;overflow:hidden;text-overflow:ellipsis;color:#6b6183}.quote--mine{border-color:#c9dcff;border-left-color:var(--primary);background:#eff5ff;color:#33507d}.quote--mine .quote__label{color:var(--primary)}.quote--missing{opacity:.75;border-left-style:dashed}.composer{position:relative;padding:10px 16px 12px;background:var(--panel);border-top:1px solid var(--line)}.composer__box{display:flex;align-items:flex-end;gap:10px;padding:6px 6px 6px 10px;border:1px solid var(--line-strong);border-radius:var(--radius);background:var(--card);transition:border-color .15s,box-shadow .15s}.composer__box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px #2b7fff21}.composer__input{flex:1;min-width:0;border:none;outline:none;resize:none;padding:6px 2px;background:transparent;line-height:1.55;max-height:168px}.composer__side{display:flex;align-items:center;gap:8px;flex:none;padding-bottom:2px}.composer__counter{font-size:11px;color:var(--muted);min-width:0}.composer__counter--warn{color:var(--danger)}.composer__send{height:34px;padding:0 18px}.composer__hint{margin:6px 2px 0;font-size:11px;color:#a3acbb}.composer__reply{display:flex;align-items:center;gap:6px;margin-bottom:8px;padding:5px 8px;border-radius:8px;background:var(--primary-weak);border-left:3px solid var(--primary);font-size:12px;color:var(--text-2)}.composer__reply-label{flex:none;font-weight:600;color:var(--primary)}.composer__reply-text{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}.composer__reply-close{width:22px;height:22px;font-size:12px}.mention-pop{position:absolute;left:16px;bottom:calc(100% - 4px);width:min(320px,calc(100% - 32px));padding:6px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-md);z-index:30;max-height:280px;overflow-y:auto}.mention-pop__head{display:flex;justify-content:space-between;padding:4px 8px 6px;font-size:11px;color:var(--muted);font-weight:600}.mention-pop__hint{font-weight:400;color:#aab2c0;max-width:60%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.mention-pop__empty{margin:6px 8px 10px;font-size:12.5px;color:var(--muted)}.mention-item{display:flex;align-items:center;gap:8px;width:100%;padding:6px 8px;border:none;border-radius:8px;background:transparent;text-align:left}.mention-item--active{background:var(--primary-weak)}.mention-item__name{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:13px}.mention-item__kind{flex:none;padding:0 5px;border-radius:5px;font-size:10px;font-weight:700;line-height:15px}.mention-item__kind.is-agent{background:var(--ai-weak);color:var(--ai);border:1px solid #ddd0ff}.mention-item__kind.is-user{background:#eef2f9;color:var(--muted)}.chat__members-wrap{min-width:0;background:var(--panel);border-left:1px solid var(--line);overflow:hidden}.chat__members-backdrop{display:none}.members{display:flex;flex-direction:column;height:100%;min-width:0;pointer-events:auto}.members__head{display:flex;align-items:center;justify-content:space-between;padding:14px 14px 10px;border-bottom:1px solid var(--line)}.members__title{margin:0;font-size:13px;color:var(--muted);font-weight:600;letter-spacing:.4px}.members__close{display:none}.members__scroll{flex:1;overflow-y:auto;padding:8px 8px 18px}.members__section+.members__section{margin-top:12px;border-top:1px dashed var(--line);padding-top:10px}.members__subtitle{margin:4px 8px 6px;font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.4px}.members__list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}.members__empty,.members__empty-line{padding:20px 10px;color:var(--muted);font-size:12.5px;list-style:none}.member-row{display:flex;align-items:flex-start;gap:9px;padding:7px 8px;border-radius:10px}.member-row:hover{background:var(--hover)}.member-row--agent{background:#fcfaff}.member-row__main{display:flex;flex-direction:column;gap:1px;min-width:0}.member-row__name{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:500;min-width:0}.member-row__meta{font-size:11px;color:var(--muted)}.member-row__owner{color:#9b8ac4}.role-pill{padding:0 5px;border-radius:5px;font-size:10px;font-weight:700;line-height:15px}.role-pill--owner{background:#fff1d6;color:#a06a00}.role-pill--admin{background:#e6f0ff;color:#2b6cb0}.mode-pill{padding:0 5px;border-radius:5px;font-size:10px;font-weight:700;line-height:15px;border:1px solid transparent}.mode-pill--mention{background:var(--ai-weak);color:var(--ai);border-color:#ddd0ff}.mode-pill--free{background:#e8f7ee;color:var(--ok);border-color:#bfe7cf}.mode-pill--off{background:#f1f3f7;color:var(--muted);border-color:var(--line)}.member-mode-select{flex:none;height:21px;max-width:118px;padding:0 4px;border-radius:5px;border:1px solid var(--line-strong);background:var(--card);color:var(--text-2);font-size:11px;line-height:19px;cursor:pointer}.member-mode-select:hover{border-color:#c3cbda}.member-mode-select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px #2b7fff24}.agent-paused-pill{flex:none;padding:0 5px;border-radius:5px;font-size:10px;font-weight:700;line-height:15px;background:#f1f3f7;color:#5d6678;border:1px solid var(--line-strong)}.online-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--ok);margin-right:4px;vertical-align:middle}.modal-mask{position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;padding:24px;background:#141a266b;backdrop-filter:blur(2px)}.modal{width:min(480px,100%);max-height:calc(100dvh - 48px);display:flex;flex-direction:column;background:var(--card);border-radius:16px;box-shadow:var(--shadow-lg);outline:none}.modal--wide{width:min(640px,100%)}.modal__head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:16px 18px 12px;border-bottom:1px solid var(--line)}.modal__title{margin:0;font-size:16px;font-weight:600}.modal__body{padding:16px 18px;overflow-y:auto}.modal__body .field:last-child{margin-bottom:4px}.modal__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 18px 16px;border-top:1px solid var(--line)}.modal__hint{font-size:12px;color:var(--muted)}.modal__foot-actions{display:flex;gap:8px;margin-left:auto}.pick-groups{display:grid;gap:12px;margin-top:4px}.pick-empty{margin:6px 0;color:var(--muted);font-size:13px}.pick-title{margin:0 0 6px;font-size:11.5px;font-weight:600;color:var(--muted);letter-spacing:.4px}.pick-list{list-style:none;margin:0;padding:0;display:grid;gap:2px}.pick-row{display:flex;align-items:center;gap:9px;padding:7px 9px;border-radius:10px;border:1px solid transparent;cursor:pointer}.pick-row:hover{background:var(--hover)}.pick-row--checked{background:var(--primary-weak);border-color:#cfe0ff}.pick-row input[type=checkbox]{width:15px;height:15px;accent-color:var(--primary)}.pick-row__name{flex:1;min-width:0;font-size:13.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pick-row__meta{flex:none;font-size:11px;color:var(--muted)}.agents{min-height:100dvh;padding:22px clamp(16px,4vw,44px) 48px;background:var(--bg)}.agents__head{display:flex;align-items:center;gap:12px;max-width:1120px;margin:0 auto 18px}.agents__head>div{flex:1;min-width:0}.agents__title{margin:0;font-size:20px;font-weight:600}.agents__subtitle{margin:2px 0 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