/* 悬浮按钮样式 */
.zib-doubao-float-btn {
    position: fixed;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: #fff;
    text-align: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 2px 15px rgba(0,0,0,0.2);
    z-index: 9999;
    transition: all 0.3s ease;
}
.zib-doubao-float-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

/* 聊天面板样式 */
.zib-doubao-chat-panel {
    position: fixed;
    max-width: 90vw;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.15);
    z-index: 9998;
    display: none;
    flex-direction: column;
    overflow: hidden;
}

/* 聊天头部 */
.zib-doubao-chat-header {
    padding: 12px 15px;
    background-color: var(--primary-color);
    color: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.zib-doubao-chat-title {
    font-size: 16px;
    font-weight: 600;
}
.zib-doubao-chat-close {
    cursor: pointer;
    font-size: 18px;
}

/* 消息列表 */
.zib-doubao-message-list {
    flex: 1;
    padding: 15px;
    overflow-y: auto;
}
.zib-doubao-message {
    margin-bottom: 15px;
    max-width: 85%;
}
.zib-doubao-message.user {
    margin-left: auto;
}
.zib-doubao-message.ai {
    margin-right: auto;
}
.zib-doubao-message-content {
    padding: 8px 12px;
    border-radius: 8px;
    line-height: 1.5;
}
.zib-doubao-message.user .zib-doubao-message-content {
    background-color: var(--primary-color);
    color: #fff;
}
.zib-doubao-message.ai .zib-doubao-message-content {
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

/* 输入区域 */
.zib-doubao-input-area {
    padding: 10px 15px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
}
.zib-doubao-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--input-bg);
    color: var(--text-color);
    outline: none;
    resize: none;
    height: 40px;
    max-height: 120px;
}
.zib-doubao-send-btn {
    padding: 8px 18px;
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
}
.zib-doubao-send-btn:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
}

/* 加载动画 */
.zib-doubao-loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 深色模式适配 */
[data-theme="dark"] .zib-doubao-chat-panel {
    border-color: #333;
}
[data-theme="dark"] .zib-doubao-message.ai .zib-doubao-message-content {
    background-color: #222;
    border-color: #444;
}