:root{--primary-color:#4dabf7;--primary-hover-color:#339af0;--background-color:#f8f9fa;--text-color:#495057;--border-color:#e9ecef;--shadow:0 4px 15px rgba(0, 0, 0, 0.1);--border-radius:16px;--transition:all 0.3s ease}#ai-interaction-window .article-summary{width:auto;max-width:100%;padding:20px;margin-bottom:30px;border:1px solid #e0e0e0;border-radius:10px;box-shadow:0 2px 8px rgb(0 0 0 / .1);transition:background-color 0.3s ease,box-shadow 0.3s ease}#ai-interaction-window .article-summary:hover{background-color:#f0f0f0;box-shadow:0 4px 12px rgb(0 0 0 / .15)}#ai-interaction-window .article-summary h3{margin-top:0;color:#333;font-size:1.5em;font-weight:700;border-bottom:2px solid #4CAF50;padding-bottom:10px;text-align:left}#ai-interaction-window .article-summary p{margin:15px 0 0;color:#666;line-height:1.6;font-size:1em;text-align:justify}#ai-interaction-window .source-link{margin-top:15px;font-size:.9em;color:#777;text-align:left}#ai-interaction-window .source-link a{color:#3498db;text-decoration:none;border-bottom:1px dotted #3498db;transition:border-bottom 0.3s ease,color 0.3s ease}#ai-interaction-window .source-link a:hover{border-bottom-style:solid;color:#2196F3}#ai-interaction-window{width:320px;height:420px;background-color:var(--background-color);border:1px solid var(--border-color);border-radius:var(--border-radius);box-shadow:var(--shadow);position:fixed;bottom:20px;right:20px;z-index:10000;transition:var(--transition);font-family:'Inter',sans-serif;overflow:hidden}@media (max-width:600px){#ai-interaction-window{display:none}#ai-minimized-icon{display:block}}#ai-interaction-window .ai-header{background-color:var(--primary-color);color:#fff;padding:14px 16px;border-radius:var(--border-radius) var(--border-radius) 0 0;cursor:move;display:flex;align-items:center;justify-content:space-between;box-shadow:0 2px 8px rgb(0 0 0 / .1)}#ai-interaction-window .ai-title{margin:0;font-size:16px;font-weight:600;line-height:1.5;color:#fff;text-shadow:1px 1px 1px rgb(0 0 0 / .1);text-align:left;padding-left:12px;flex:1;transition:color 0.3s,text-shadow 0.3s}#ai-interaction-window .ai-header .btn-container{display:flex;gap:8px}#ai-interaction-window .ai-header .close-btn,#ai-interaction-window .ai-header .minimize-btn{font-size:14px;cursor:pointer;width:28px;height:28px;border-radius:50%;background-color:rgb(255 255 255 / .1);color:#fff;display:flex;align-items:center;justify-content:center;transition:var(--transition)}#ai-interaction-window .ai-header .close-btn:hover,#ai-interaction-window .ai-header .minimize-btn:hover{background-color:rgb(255 255 255 / .2);transform:scale(1.1)}#ai-interaction-window .ai-header .close-btn::after{content:'×';font-size:18px;line-height:1}#ai-interaction-window .ai-header .minimize-btn::after{content:'−';font-size:18px;line-height:1}#ai-interaction-window .ai-body{padding:16px;height:calc(100% - 60px);overflow-y:auto;background-color:#fff}#chat-container{height:100%;display:flex;flex-direction:column}#chat-messages{flex:1;overflow-y:auto;padding:10px;border-bottom:1px solid var(--border-color)}#ai-interaction-window .ai-message,.user-message{padding:12px 16px;margin-bottom:12px;border-radius:12px;font-size:14px;max-width:80%;position:relative;transition:transform 0.2s ease,box-shadow 0.2s ease}#ai-interaction-window .ai-message{background-color:#fff;border:1px solid var(--border-color);color:var(--text-color);align-self:flex-start;box-shadow:var(--shadow);border-radius:12px 12px 12px 0}#ai-interaction-window .user-message{background-color:var(--primary-color);color:#fff;align-self:flex-end;box-shadow:0 4px 12px rgb(77 171 247 / .2);border-radius:12px 12px 0 12px}#ai-interaction-window .user-message::after{content:'';position:absolute;right:-8px;top:12px;border-width:6px 0 6px 8px;border-color:#fff0 #fff0 #fff0 var(--primary-color)}#ai-interaction-window .ai-message::before{content:'';position:absolute;left:-8px;top:12px;border-width:6px 8px 6px 0;border-color:#fff0 var(--border-color) #fff0 #fff0}#ai-interaction-window .ai-message:hover,#ai-interaction-window .user-message:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgb(0 0 0 / .1)}#ai-interaction-window .timestamp{font-size:.75em;color:#666;margin-top:4px;display:block;text-align:right}#ai-interaction-window .input-container{display:flex;padding:12px;gap:12px;background-color:#fff;border-top:1px solid var(--border-color)}#ai-input{flex:1;padding:12px 16px;border:1px solid var(--border-color);border-radius:12px;font-size:14px;outline:none;transition:border-color 0.3s ease,box-shadow 0.3s ease;background-color:#fff}#ai-input:focus{border-color:var(--primary-color);box-shadow:0 0 0 3px rgb(77 171 247 / .1)}#send-message{padding:12px 20px;background-color:var(--primary-color);color:#fff;border:none;border-radius:12px;cursor:pointer;font-size:14px;transition:var(--transition);display:flex;align-items:center;justify-content:center}#send-message:hover{background-color:var(--primary-hover-color);transform:translateY(-1px);box-shadow:0 4px 12px rgb(77 171 247 / .2)}#ai-interaction-window .loading-message{font-style:italic;color:#666;text-align:center;margin:10px 0}#ai-minimized-icon{position:fixed;bottom:20px;right:20px;cursor:pointer;z-index:10000;transition:var(--transition);display:none}#ai-minimized-icon img{width:40px;height:40px;border-radius:50%;box-shadow:var(--shadow)}