.modal-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0, 0, 0, 0.7);display:flex;justify-content:center;align-items:center;z-index:1000;visibility:hidden;opacity:0;transition:visibility 0.3s, opacity 0.3s}.modal-overlay.open{visibility:visible;opacity:1}.chat-modal{width:95%;max-width:414px;height:90vh;height:90dvh;max-height:667px;background-color:#7494c0;border-radius:20px;overflow:hidden;display:flex;flex-direction:column;position:relative;box-shadow:0 10px 30px rgba(0,0,0,0.3);transition:background-color 0.3s}.modal-close-btn{position:absolute;top:15px;left:15px;color:white;font-size:24px;cursor:pointer;z-index:1001;font-weight:bold}.chat-header{background-color:rgba(0,0,0,0.1);color:white;text-align:center;padding:15px 0;font-size:16px;font-weight:bold;position:relative;transition:background-color 0.3s}.theme-toggle{position:absolute;right:15px;top:50%;transform:translateY(-50%);cursor:pointer;font-size:18px;user-select:none;opacity:0.8;transition:opacity 0.2s}.theme-toggle:hover{opacity:1}.chat-messages{flex:1;overflow-y:auto;padding:20px 15px;background-color:#7494c0;transition:background-color 0.3s}.message{display:flex;margin-bottom:20px;align-items:flex-end}.message.right{justify-content:flex-end}.message.left{justify-content:flex-start}.bubble{max-width:70%;padding:10px 15px;border-radius:15px;font-size:14px;position:relative;word-wrap:break-word}.message.right .bubble{background-color:#85e249;color:#000;border-bottom-right-radius:0}.message.left .bubble{background-color:#fff;color:#333;border-bottom-left-radius:0}.stamp-bubble{max-width:70%;position:relative}.stamp-image{max-width:120px;height:auto;display:block;margin:5px 0}.emoji-inline{width:20px;height:20px;vertical-align:middle;margin:0 2px}.chat-input-area{background-color:#fff;padding:10px 15px;display:flex;align-items:center;border-top:1px solid #dcdcdc;position:relative;z-index:1003}.chat-input-icon{color:#999;font-size:20px;margin-right:15px;cursor:pointer}.chat-input{flex-grow:1;border:none;outline:none;font-size:14px;min-height:20px;max-height:80px;overflow-y:auto;word-wrap:break-word;background-color:transparent;cursor:text}.chat-input:empty:before{content:attr(data-placeholder);color:#999;pointer-events:none;display:block}.chat-send-btn{color:#ff8e9d;border:none;background:none;cursor:pointer;font-weight:bold;font-size:14px;margin-left:10px}.stamp-panel{position:absolute;bottom:-300px;left:0;width:100%;height:300px;background-color:#f7f9f9;border-top:1px solid #dcdcdc;transition:bottom 0.3s;z-index:1002;display:flex;flex-direction:column}.stamp-panel.open{bottom:50px}.panel-header{display:flex;justify-content:space-between;align-items:center;background-color:#fff;padding:10px 15px;border-bottom:1px solid #dcdcdc}.panel-tabs{display:flex;gap:10px}.panel-tab-wrapper{display:flex;align-items:center;gap:6px;cursor:pointer;padding:6px 12px;border-radius:20px;background-color:#f1f3f4;transition:background-color 0.2s}.panel-tab-wrapper.active{background-color:#ff8e9d}.tab-label{font-size:13px;font-weight:bold;color:#536471;letter-spacing:0.5px}.panel-tab-wrapper.active .tab-label{color:#ffffff}.panel-tab{width:22px;height:22px;object-fit:cover}.panel-close{color:#999;font-size:16px;cursor:pointer}.sub-tabs-container{display:none;background-color:#f1f3f4;padding:8px 15px;border-bottom:1px solid #dcdcdc;overflow-x:auto;white-space:nowrap}.sub-tabs-container.active{display:flex;gap:12px;align-items:center}.sub-tab{width:32px;height:32px;border-radius:8px;cursor:pointer;object-fit:cover;opacity:0.4;transition:all 0.2s}.sub-tab.active{opacity:1;outline:2px solid #ff8e9d;background-color:#fff}.sub-tab-placeholder{width:32px;height:32px;border-radius:8px;background-color:#e0e0e0;display:flex;justify-content:center;align-items:center;color:#999;font-size:16px;font-weight:bold;cursor:default}.stamp-grid{flex:1;display:none;grid-template-columns:repeat(4, 1fr);gap:15px;padding:20px;overflow-y:auto}.stamp-grid.active{display:grid}.panel-stamp-item{width:100%;height:auto;cursor:pointer;transition:transform 0.1s}.panel-stamp-item:hover{transform:scale(1.1)}.chat-modal.theme-dark,.chat-modal.theme-dark .chat-messages{background-color:#000000}.chat-modal.theme-dark .chat-header{background-color:#222222}