/* 移动端适配 - 优化版 */
@media (max-width: 768px) {
    .uap-messages-modal {
        padding: 0;
    }

    .uap-messages-modal-content {
        max-width: 100%;
        max-height: 100%;
        height: 100%;
        border-radius: 0;
    }

    .uap-messages-modal .uap-dm-container {
        height: 100%;
    }

    .uap-messages-modal .uap-dm-sidebar {
        width: 100%;
        position: absolute;
        inset: 0;
        z-index: 1;
        background: #fff;
    }

    .uap-messages-modal .uap-dm-chat {
        position: absolute;
        inset: 0;
        z-index: 2;
        background: #fff;
        transform: translateX(100%);
        transition: transform 0.3s;
    }

    .uap-messages-modal .uap-dm-chat.active {
        transform: translateX(0);
    }

    .uap-messages-modal .uap-dm-back-btn {
        display: flex !important;
    }

    .uap-messages-modal .uap-dm-msg {
        max-width: 85%;
    }

    .uap-messages-modal .uap-dm-footer {
        padding: 8px 12px 12px;
    }

    .uap-messages-modal .uap-dm-input-container {
        padding: 4px 4px 4px 10px;
    }

    .uap-messages-modal .uap-dm-counter {
        display: none;
    }

    .uap-messages-modal .uap-dm-send-btn {
        width: 32px;
        height: 32px;
    }

    .uap-messages-modal .uap-dm-send-btn svg {
        width: 16px;
        height: 16px;
    }
}

/* 桌面端样式 */
@media (min-width: 769px) {

    /* 侧边栏始终显示 */
    .uap-messages-modal .uap-dm-sidebar {
        display: flex;
    }

    /* 隐藏返回按钮 */
    .uap-messages-modal .uap-dm-back-btn {
        display: none !important;
    }
}

/* 按钮未读角标：与通知角标同一规则，压在按钮右上角；一位数为 16px 圆形（border-box，内边距不会撑成椭圆），
   两位数及 99+ 为胶囊，白色描边把角标与按钮边框分开。 */
.uap-open-messages-btn {
    position: relative;
}

.uap-btn-badge {
    position: absolute;
    top: -6px;
    right: -6px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 16px;
    height: 16px;
    margin: 0;
    padding: 0 4px;
    background: var(--uap-error, #e11d48);
    border-radius: 999px;
    box-shadow: 0 0 0 2px var(--uap-surface, #fff);
    font-size: 10px;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    color: #fff;
    pointer-events: none;
}

/* 桌面端隐藏侧边栏关闭按钮 */
@media (min-width: 769px) {
    .uap-messages-modal .uap-dm-sidebar-close {
        display: none;
    }
}

/* 私信工具栏 - 优化版 */
.uap-messages-modal .uap-dm-tool-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0 !important;
    background: transparent !important;
    border: none !important;
    border-radius: 6px;
    color: #6b7280 !important;
    cursor: pointer;
    transition: all 0.15s;
}

.uap-messages-modal .uap-dm-tool-btn:hover {
    background: #e5e7eb !important;
    color: var(--uap-action-bg, #4f46e5) !important;
    transform: scale(1.1);
}

.uap-messages-modal .uap-dm-tool-btn:active {
    transform: scale(0.95);
}

.uap-messages-modal .uap-dm-tool-btn svg {
    width: 18px;
    height: 18px;
}

/* 表情选择器 - 使用统一样式 */
.uap-messages-modal .uap-dm-emoji-wrapper {
    position: relative;
}

/* 私信表情选择器特定样式覆盖（如需要） - 突破毛玻璃窗口进行超高显示 */
.uap-dm-emoji-picker {
    z-index: 100002 !important;
    background: var(--uap-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--uap-border-light);
    box-shadow: var(--uap-shadow-lg), 0 0 0 1px rgba(255, 255, 255, 0.8) inset;
    border-radius: var(--uap-radius);
}

/* 图片消息 */
.uap-messages-modal .uap-dm-msg-image {
    max-width: 200px;
    max-height: 200px;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.uap-messages-modal .uap-dm-msg-image:hover {
    opacity: 0.9;
}

.uap-messages-modal .uap-dm-msg.sent .uap-dm-msg-bubble:has(.uap-dm-msg-image) {
    padding: 4px;
    background: transparent;
}

.uap-messages-modal .uap-dm-msg.received .uap-dm-msg-bubble:has(.uap-dm-msg-image) {
    padding: 4px;
    background: transparent;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .uap-messages-modal .uap-dm-msg-image {
        max-width: 160px;
        max-height: 160px;
    }
}

/* 图片预览遮罩层 */
.uap-dm-image-preview-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100001;
    cursor: zoom-out;
}

.uap-dm-image-preview-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: background 0.2s;
}

.uap-dm-image-preview-close:hover {
    background: rgba(255, 255, 255, 0.2);
}

.uap-dm-image-preview-img {
    max-width: 90vw;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 4px;
    cursor: default;
}