/**
 * AI 助手样式
 *
 * 现代简洁的 AI 风格设计
 *
 * @package    Hui
 * @subpackage AI_Assistant
 * @since      1.5.0
 */

/* ============================================================================
   触发按钮（在父主题快捷菜单中）
   ============================================================================ */

.hui-ai-trigger.xun-quick-menu-item {
    background: var(--color-bg-container, #fff) !important;
    color: var(--color-text, #333) !important;
    border: 1px solid var(--color-border, #e5e5e5) !important;
}

.hui-ai-trigger.xun-quick-menu-item:hover {
    border-color: var(--xun-secondary, var(--color-primary)) !important;
    color: var(--xun-secondary, var(--color-primary)) !important;
}

/* ============================================================================
   面板容器
   ============================================================================ */

.hui-ai-panel {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 9999;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 16px;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    transition: visibility 0s 0.3s, opacity 0.3s var(--ease-smooth, ease);
}

.hui-ai-panel.is-open {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transition-delay: 0s;
}

/* 遮罩层 */
.hui-ai-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg-mask, rgba(0, 0, 0, 0.45));
    opacity: 0;
    transition: opacity 0.3s var(--ease-smooth, ease);
}

.hui-ai-panel.is-open .hui-ai-overlay {
    opacity: 1;
}

/* 主容器 - 悬浮卡片样式 */
.hui-ai-container {
    position: relative;
    width: 420px;
    max-width: calc(100% - 32px);
    height: calc(100vh - 100px);
    max-height: 860px;
    background: var(--color-bg-container, #fff);
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    overflow: hidden;
    transform: translateX(40px) scale(0.95);
    opacity: 0;
    transition: transform 0.3s var(--ease-smooth, ease), opacity 0.3s var(--ease-smooth, ease);
}

.hui-ai-panel.is-open .hui-ai-container {
    transform: translateX(0) scale(1);
    opacity: 1;
}

/* 全屏模式 - 居中放大显示 */
.hui-ai-panel.is-fullscreen {
    justify-content: center;
}

.hui-ai-panel.is-fullscreen .hui-ai-container {
    width: 680px;
    max-width: calc(100% - 48px);
    height: calc(100vh - 80px);
    max-height: 900px;
}

/* ============================================================================
   头部
   ============================================================================ */

.hui-ai-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--color-bg-container, #fff);
    border-bottom: 1px solid var(--color-border-secondary, #f0f0f0);
    flex-shrink: 0;
}

.hui-ai-header-left,
.hui-ai-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 80px;
}

.hui-ai-header-right {
    justify-content: flex-end;
}

/* 登录按钮 */
.hui-ai-login-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary, #666);
    background: var(--color-bg-container, #fff);
    border: 1px solid var(--color-border, #e5e5e5);
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-login-btn:hover {
    color: var(--xun-secondary, var(--color-primary));
    border-color: var(--xun-secondary, var(--color-primary));
}

/* Tab 切换 */
.hui-ai-tabs {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px;
    background: var(--color-fill-quaternary, rgba(0, 0, 0, 0.02));
    border-radius: 10px;
}

.hui-ai-tab {
    padding: 10px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-tertiary, #999);
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-tab:hover {
    color: var(--color-text-secondary, #666);
}

.hui-ai-tab.is-active {
    color: var(--color-text, #333);
    background: var(--color-bg-container, #fff);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

/* 图标按钮 */
.hui-ai-btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-text-tertiary, #999);
    background: transparent;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-btn-icon:hover {
    color: var(--color-text-secondary, #666);
    background: var(--color-fill-tertiary, rgba(0, 0, 0, 0.04));
}

/* ============================================================================
   内容区域
   ============================================================================ */

.hui-ai-body {
    flex: 1;
    overflow: hidden;
    position: relative;
    background: var(--color-bg-layout, #f5f5f5);
}

.hui-ai-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 24px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s var(--ease-smooth, ease), visibility 0s 0.2s;
}

.hui-ai-content.is-active {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
}

/* ============================================================================
   网站助手欢迎区
   ============================================================================ */

.hui-ai-welcome {
    text-align: center;
    padding: 32px 0 40px;
}

.hui-ai-welcome-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    margin-bottom: 20px;
    background: var(--color-bg-container, #fff);
    border-radius: 24px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.hui-ai-welcome-icon svg {
    color: var(--xun-secondary, var(--color-primary));
}

.hui-ai-welcome-title {
    margin: 0 0 8px;
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text, #333);
    letter-spacing: -0.02em;
}

.hui-ai-welcome-desc {
    margin: 0;
    font-size: 14px;
    color: var(--color-text-tertiary, #999);
    line-height: 1.6;
}

/* ============================================================================
   预设问题
   ============================================================================ */

.hui-ai-presets {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.hui-ai-preset {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-bg-container, #fff);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-preset:hover {
    border-color: var(--xun-secondary, var(--color-primary));
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.hui-ai-preset-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    font-size: 16px;
    background: var(--color-fill-quaternary, rgba(0, 0, 0, 0.02));
    border-radius: 8px;
    flex-shrink: 0;
}

.hui-ai-preset-text {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text, #333);
    line-height: 1.4;
}

/* ============================================================================
   AI 对话欢迎区
   ============================================================================ */

.hui-ai-chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    text-align: center;
    padding: 40px 20px;
}

.hui-ai-chat-icon {
    position: relative;
    margin-bottom: 24px;
}

.hui-ai-chat-icon-spark {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 72px;
    height: 72px;
    background: var(--color-bg-container, #fff);
    border-radius: 20px;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.hui-ai-chat-icon-spark svg {
    color: var(--xun-secondary, var(--color-primary));
}

/* 装饰点 */
.hui-ai-chat-icon::before,
.hui-ai-chat-icon::after {
    content: '';
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--xun-secondary, var(--color-primary));
    border-radius: 50%;
    opacity: 0.3;
}

.hui-ai-chat-icon::before {
    top: -4px;
    right: -8px;
}

.hui-ai-chat-icon::after {
    bottom: 8px;
    left: -12px;
    width: 6px;
    height: 6px;
}

.hui-ai-chat-title {
    margin: 0 0 8px;
    font-size: 22px;
    font-weight: 600;
    color: var(--color-text, #333);
    letter-spacing: -0.02em;
}

.hui-ai-chat-desc {
    margin: 0;
    font-size: 14px;
    color: var(--color-text-tertiary, #999);
}

/* ============================================================================
   消息列表
   ============================================================================ */

.hui-ai-messages {
    display: none;
    flex-direction: column;
    gap: 20px;
    padding-top: 16px;
}

.hui-ai-messages.has-messages {
    display: flex;
}

/* 隐藏欢迎区 */
.hui-ai-content.has-messages .hui-ai-welcome,
.hui-ai-content.has-messages .hui-ai-presets,
.hui-ai-content.has-messages .hui-ai-chat-welcome {
    display: none;
}

/* 消息项 */
.hui-ai-message {
    display: flex;
    gap: 12px;
    max-width: 100%;
}

.hui-ai-message.is-user {
    flex-direction: row-reverse;
}

/* 头像 */
.hui-ai-message-avatar {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-container, #fff);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    overflow: hidden;
}

.hui-ai-message.is-assistant .hui-ai-message-avatar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
}

.hui-ai-message.is-user .hui-ai-message-avatar {
    background: var(--color-fill-secondary, rgba(0, 0, 0, 0.06));
    color: var(--color-text-tertiary, #999);
}

/* 头像图片 */
.hui-ai-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 头像图标 */
.hui-ai-avatar-icon {
    width: 20px;
    height: 20px;
}

/* 消息内容 */
.hui-ai-message-content {
    flex: 1;
    min-width: 0;
    padding: 14px 18px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.7;
    word-break: break-word;
}

.hui-ai-message.is-assistant .hui-ai-message-content {
    background: var(--color-bg-container, #fff);
    color: var(--color-text, #333);
    border-bottom-left-radius: 6px;
}

.hui-ai-message.is-user .hui-ai-message-content {
    background: var(--xun-secondary, var(--color-primary));
    color: #fff;
    border-bottom-right-radius: 6px;
}

/* 思考中动画 */
.hui-ai-message-thinking {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 0;
}

.hui-ai-message-thinking span {
    width: 8px;
    height: 8px;
    background: var(--color-text-quaternary, #ccc);
    border-radius: 50%;
    animation: hui-ai-thinking 1.4s infinite ease-in-out both;
}

.hui-ai-message-thinking span:nth-child(1) { animation-delay: -0.32s; }
.hui-ai-message-thinking span:nth-child(2) { animation-delay: -0.16s; }
.hui-ai-message-thinking span:nth-child(3) { animation-delay: 0s; }

@keyframes hui-ai-thinking {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.4;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ============================================================================
   底部输入区
   ============================================================================ */

.hui-ai-footer {
    padding: 16px 20px 20px;
    background: var(--color-bg-container, #fff);
    border-top: 1px solid var(--color-border-secondary, #f0f0f0);
    flex-shrink: 0;
}

/* 输入框容器 */
.hui-ai-input-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 6px 6px 18px;
    background: var(--color-fill-quaternary, rgba(0, 0, 0, 0.02));
    border: 1px solid transparent;
    border-radius: 28px;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-input-wrapper:focus-within {
    background: var(--color-bg-container, #fff);
    border-color: var(--xun-secondary, var(--color-primary));
    box-shadow: 0 0 0 3px rgba(var(--xun-secondary-rgb, 59, 130, 246), 0.1);
}

.hui-ai-input {
    flex: 1;
    min-width: 0;
    padding: 10px 0;
    font-size: 14px;
    color: var(--color-text, #333);
    background: transparent;
    border: none;
    outline: none;
}

.hui-ai-input::placeholder {
    color: var(--color-text-quaternary, #ccc);
}

/* 发送按钮 */
.hui-ai-send {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    color: #fff;
    background: var(--xun-secondary, var(--color-primary));
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth, ease);
    flex-shrink: 0;
}

.hui-ai-send:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.hui-ai-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* 操作栏 */
.hui-ai-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

/* 新对话按钮 */
.hui-ai-new-chat {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    color: var(--color-text-tertiary, #999);
    background: transparent;
    border: 1px solid var(--color-border-secondary, #f0f0f0);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-new-chat:hover {
    color: var(--xun-secondary, var(--color-primary));
    border-color: var(--xun-secondary, var(--color-primary));
}

/* 模型选择 */
.hui-ai-model-select {
    position: relative;
}

.hui-ai-model-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-secondary, #666);
    background: transparent;
    border: 1px solid var(--color-border-secondary, #f0f0f0);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-model-btn:hover {
    border-color: var(--color-border, #e5e5e5);
}

.hui-ai-model-icon {
    font-size: 14px;
}

.hui-ai-model-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 模型下拉菜单 */
.hui-ai-model-dropdown {
    position: absolute;
    bottom: 100%;
    left: 0;
    min-width: 200px;
    margin-bottom: 8px;
    padding: 8px;
    background: var(--color-bg-container, #fff);
    border: 1px solid var(--color-border-secondary, #f0f0f0);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all 0.2s var(--ease-smooth, ease);
}

.hui-ai-model-select.is-open .hui-ai-model-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.hui-ai-model-option {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text, #333);
    background: transparent;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    text-align: left;
    transition: background 0.15s var(--ease-smooth, ease);
}

.hui-ai-model-option:hover {
    background: var(--color-fill-quaternary, rgba(0, 0, 0, 0.02));
}

.hui-ai-model-option.is-active {
    background: var(--color-fill-tertiary, rgba(0, 0, 0, 0.04));
    color: var(--xun-secondary, var(--color-primary));
}

.hui-ai-model-option-icon {
    font-size: 18px;
}

.hui-ai-model-option-name {
    flex: 1;
}

.hui-ai-model-option-cost {
    font-size: 11px;
    font-weight: 400;
    color: var(--color-text-tertiary, #999);
    padding: 2px 6px;
    background: var(--color-fill-quaternary, rgba(0, 0, 0, 0.02));
    border-radius: 4px;
}

.hui-ai-model-option.is-active .hui-ai-model-option-cost {
    background: var(--color-fill-secondary, rgba(0, 0, 0, 0.06));
}

/* 使用次数 */
.hui-ai-usage {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
    padding: 6px 12px;
    font-size: 12px;
    color: var(--color-text-tertiary, #999);
    background: var(--color-fill-quaternary, rgba(0, 0, 0, 0.02));
    border-radius: 16px;
}

.hui-ai-usage-count {
    font-weight: 500;
    color: var(--xun-secondary, var(--color-primary));
}

/* ============================================================================
   深色模式
   ============================================================================ */

@media (prefers-color-scheme: dark) {
    :root:not(.light) .hui-ai-welcome-icon,
    :root:not(.light) .hui-ai-chat-icon-spark,
    :root:not(.light) .hui-ai-message-avatar {
        box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
    }
    
    :root:not(.light) .hui-ai-model-dropdown {
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    }
}

.dark .hui-ai-welcome-icon,
.dark .hui-ai-chat-icon-spark,
.dark .hui-ai-message-avatar {
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.2);
}

.dark .hui-ai-model-dropdown {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

/* ============================================================================
   Markdown 内容样式
   ============================================================================ */

.hui-ai-message-content p {
    margin: 0 0 12px;
}

.hui-ai-message-content p:last-child {
    margin-bottom: 0;
}

.hui-ai-message-content code {
    padding: 3px 8px;
    font-size: 13px;
    font-family: var(--font-mono, monospace);
    background: rgba(0, 0, 0, 0.05);
    border-radius: 6px;
}

.hui-ai-message.is-user .hui-ai-message-content code {
    background: rgba(255, 255, 255, 0.2);
}

.hui-ai-message-content pre {
    margin: 12px 0;
    padding: 16px;
    background: rgba(0, 0, 0, 0.03);
    border-radius: 12px;
    overflow-x: auto;
}

.hui-ai-message-content pre code {
    padding: 0;
    background: transparent;
}

.hui-ai-message-content ul,
.hui-ai-message-content ol {
    margin: 12px 0;
    padding-left: 20px;
}

.hui-ai-message-content li {
    margin: 6px 0;
}

.hui-ai-message-content a {
    color: var(--xun-secondary, var(--color-primary));
    text-decoration: underline;
    text-underline-offset: 2px;
}

.hui-ai-message.is-user .hui-ai-message-content a {
    color: #fff;
}

/* ============================================================================
   移动端响应式
   ============================================================================ */

@media (max-width: 768px) {
    /* 面板全屏 */
    .hui-ai-panel {
        padding: 0;
    }
    
    /* 容器全屏 */
    .hui-ai-container {
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
        transform: translateY(20px);
    }
    
    .hui-ai-panel.is-open .hui-ai-container {
        transform: translateY(0);
    }
    
    /* 全屏模式在移动端保持一致 */
    .hui-ai-panel.is-fullscreen .hui-ai-container {
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
    }
    
    /* 头部 */
    .hui-ai-header {
        padding: 12px 16px;
        gap: 8px;
    }
    
    .hui-ai-header-left,
    .hui-ai-header-right {
        min-width: auto;
        gap: 4px;
    }
    
    /* 登录按钮紧凑 */
    .hui-ai-login-btn {
        padding: 6px 12px;
        font-size: 12px;
        border-radius: 16px;
    }
    
    .hui-ai-login-btn svg {
        width: 14px;
        height: 14px;
    }
    
    /* Tab 切换紧凑 */
    .hui-ai-tabs {
        gap: 2px;
        padding: 3px;
        border-radius: 8px;
    }
    
    .hui-ai-tab {
        padding: 8px 14px;
        font-size: 13px;
        border-radius: 6px;
    }
    
    /* 图标按钮 */
    .hui-ai-btn-icon {
        width: 32px;
        height: 32px;
    }
    
    .hui-ai-btn-icon svg {
        width: 18px;
        height: 18px;
    }
    
    /* 内容区域 */
    .hui-ai-content {
        padding: 20px 16px;
    }
    
    /* 欢迎区域 */
    .hui-ai-welcome {
        padding: 24px 0 32px;
    }
    
    .hui-ai-welcome-icon {
        width: 64px;
        height: 64px;
        margin-bottom: 16px;
        border-radius: 20px;
    }
    
    .hui-ai-welcome-icon svg {
        width: 32px;
        height: 32px;
    }
    
    .hui-ai-welcome-title {
        font-size: 20px;
        margin-bottom: 6px;
    }
    
    .hui-ai-welcome-desc {
        font-size: 13px;
    }
    
    /* 预设问题 */
    .hui-ai-presets {
        gap: 10px;
    }
    
    .hui-ai-preset {
        padding: 14px 16px;
        border-radius: 14px;
        justify-content: space-between;
    }
    
    .hui-ai-preset-icon {
        width: 28px;
        height: 28px;
        font-size: 14px;
        border-radius: 6px;
    }
    
    .hui-ai-preset-text {
        flex: 1;
        font-size: 14px;
    }
    
    /* 预设问题箭头 */
    .hui-ai-preset::after {
        content: '';
        width: 20px;
        height: 20px;
        background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
        background-size: contain;
        background-repeat: no-repeat;
        flex-shrink: 0;
        opacity: 0.5;
        transition: opacity 0.2s, transform 0.2s;
    }
    
    .hui-ai-preset:hover::after {
        opacity: 1;
        transform: translateX(2px);
    }
    
    /* AI 对话欢迎区 */
    .hui-ai-chat-welcome {
        padding: 32px 16px;
    }
    
    .hui-ai-chat-icon-spark {
        width: 60px;
        height: 60px;
        border-radius: 16px;
    }
    
    .hui-ai-chat-icon-spark svg {
        width: 28px;
        height: 28px;
    }
    
    .hui-ai-chat-title {
        font-size: 20px;
    }
    
    .hui-ai-chat-desc {
        font-size: 13px;
    }
    
    /* 消息列表 */
    .hui-ai-messages {
        gap: 16px;
    }
    
    .hui-ai-message {
        gap: 10px;
    }
    
    .hui-ai-message-avatar {
        width: 32px;
        height: 32px;
    }
    
    .hui-ai-message-content {
        padding: 12px 14px;
        font-size: 14px;
        border-radius: 16px;
    }
    
    /* 底部输入区 */
    .hui-ai-footer {
        padding: 12px 16px 16px;
        /* 安全区域适配 */
        padding-bottom: calc(16px + env(safe-area-inset-bottom, 0));
    }
    
    /* 输入框 */
    .hui-ai-input-wrapper {
        padding: 4px 4px 4px 14px;
        border-radius: 24px;
    }
    
    .hui-ai-input {
        padding: 8px 0;
        font-size: 14px;
    }
    
    /* 发送按钮 */
    .hui-ai-send {
        width: 40px;
        height: 40px;
    }
    
    .hui-ai-send svg {
        width: 18px;
        height: 18px;
    }
    
    /* 操作栏 */
    .hui-ai-actions {
        gap: 6px;
        margin-top: 10px;
    }
    
    /* 新对话按钮 */
    .hui-ai-new-chat {
        width: 32px;
        height: 32px;
        border-radius: 8px;
    }
    
    .hui-ai-new-chat svg {
        width: 16px;
        height: 16px;
    }
    
    /* 模型选择 */
    .hui-ai-model-btn {
        padding: 6px 10px;
        font-size: 12px;
        border-radius: 8px;
    }
    
    .hui-ai-model-icon {
        font-size: 12px;
    }
    
    .hui-ai-model-name {
        max-width: 80px;
    }
    
    .hui-ai-model-btn svg {
        width: 12px;
        height: 12px;
    }
    
    /* 模型下拉菜单 */
    .hui-ai-model-dropdown {
        min-width: 180px;
        padding: 6px;
        border-radius: 12px;
    }
    
    .hui-ai-model-option {
        padding: 10px 12px;
        font-size: 12px;
        border-radius: 8px;
    }
    
    /* 使用次数 */
    .hui-ai-usage {
        padding: 5px 10px;
        font-size: 11px;
        border-radius: 12px;
    }
}

/* 超小屏幕适配 */
@media (max-width: 360px) {
    .hui-ai-header {
        padding: 10px 12px;
    }
    
    .hui-ai-login-btn {
        padding: 5px 10px;
        font-size: 11px;
    }
    
    .hui-ai-tab {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .hui-ai-btn-icon {
        width: 28px;
        height: 28px;
    }
    
    .hui-ai-content {
        padding: 16px 12px;
    }
    
    .hui-ai-footer {
        padding: 10px 12px 14px;
        padding-bottom: calc(14px + env(safe-area-inset-bottom, 0));
    }
    
    .hui-ai-model-name {
        max-width: 60px;
    }
}