/* H5移动端布局优化 */

/* 移动端布局修复 */
@media (max-width: 768px) {
    /* 聊天容器使用完整视口高度 */
    .app-container {
        height: 100vh;
        max-width: 100%;
        border-radius: 0;
        flex-direction: column;
        overflow: hidden;
    }

    /* 隐藏左侧sidebar */
    .sidebar {
        display: none;
    }

    /* 聊天区域占满剩余空间 */
    .chat-wrapper {
        flex: 1;
        display: flex;
        flex-direction: column;
        padding: 0;
        overflow: hidden;
    }

    /* 头部固定 */
    .header {
        padding: 12px 16px;
        flex-shrink: 0;
    }

    .logo span {
        font-size: 1.1rem;
    }

    .header-stats {
        display: none;
    }

    /* 聊天内容容器 - 关键修复：可滚动 */
    .chat-content {
        flex: 1;
        display: flex;
        flex-direction: column;
        background: var(--white);
        border-radius: 0;
        padding: 0;
        min-height: 0;
        overflow: hidden;
    }

    /* 聊天区域滚动 */
    .chat-container {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        padding: 12px;
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
        min-height: 0;
    }

    .chat-messages {
        padding: 16px;
        gap: 16px;
    }

    /* 消息样式优化 */
    .message {
        gap: 10px;
    }

    .message-content {
        max-width: 85%;
    }

    .message-bubble {
        padding: 12px 14px;
        font-size: 0.95rem;
    }

    .message-avatar {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    /* 输入区域 - 关键修复：固定底部 */
    .input-area {
        background: var(--white);
        padding: 12px 16px 16px;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        z-index: 100;
        box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
        border-top: 1px solid var(--border-color);
    }

    .input-container {
        padding: 5px 5px;
        border-radius: 5px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    #questionInput {
        padding: 8px 0;
        font-size: 1rem;
    }

    .send-btn {
        width: 40px;
        height: 40px;
        flex-shrink: 0;
    }

    /* 聊天容器底部留出空间给固定输入框 */
    .chat-container {
        padding-bottom: 80px;
    }

    /* 管理后台移动端 */
    .admin-container {
        flex-direction: column;
    }

    .admin-sidebar {
        width: 100%;
        height: auto;
        position: relative;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 12px 16px;
    }

    .admin-logo {
        border: none;
        padding: 0;
        font-size: 1.1rem;
    }

    .admin-nav {
        display: none;
    }

    .admin-footer {
        border: none;
        padding: 0;
    }

    .back-to-chat span {
        display: none;
    }

    .admin-main {
        margin-left: 0;
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 16px;
    }

    .filter-bar {
        flex-direction: column;
    }

    .modal-content {
        width: 95%;
        max-height: 95vh;
    }
}

/* 小屏幕手机 */
@media (max-width: 480px) {
    .logo i {
        display: none;
    }

    .message {
        gap: 8px;
    }

    .message-avatar {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
    }

    .message-bubble {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .media-links {
        flex-direction: column;
    }

    .input-container {
        padding: 8px 12px;
    }

    #questionInput {
        padding: 6px 0;
        font-size: 0.95rem;
    }

    .send-btn {
        width: 36px;
        height: 36px;
    }

    /* 输入框高度限制 */
    .input-area {
        padding: 10px 12px 12px;
    }
}

/* 平板设备 */
@media (min-width: 769px) and (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }

    .message-content {
        max-width: 80%;
    }

    .chat-messages {
        max-width: 100%;
        padding: 24px;
    }
}

/* 确保所有设备上都能滚动 */
.chat-container {
    -webkit-overflow-scrolling: touch;
    -moz-overflow-scrolling: touch;
    -ms-overflow-scrolling: touch;
    -o-overflow-scrolling: touch;
    overflow-scrolling: touch;
}

/* 键盘弹出时的适配 */
@media (max-height: 500px) and (max-width: 768px) {
    .header {
        padding: 8px 12px;
    }

    .logo span {
        font-size: 1rem;
    }

    .input-area {
        padding: 8px 12px 8px;
    }

    .chat-container {
        padding-bottom: 70px;
    }

    .message-bubble {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    .message-avatar {
        width: 28px;
        height: 28px;
        font-size: 0.8rem;
    }
}