/**
 * 移动端 UI 样式 - 参考通义千问手机端设计
 * 简洁、现代、流畅的移动端体验
 */

/* ========== 基础重置 ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: #f5f5f5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ========== 滚动条美化 ========== */
::-webkit-scrollbar {
    width: 4px;
    height: 4px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

/* ========== 通用组件 ========== */

/* 卡片容器 */
.mobile-card {
    background: white;
    border-radius: 16px;
    padding: 20px;
    margin: 15px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

/* 按钮基础样式 */
.mobile-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.mobile-btn:active {
    transform: scale(0.95);
}

/* 主按钮 */
.mobile-btn-primary {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

/* 次要按钮 */
.mobile-btn-secondary {
    background: #f5f5f5;
    color: #333;
    border: 1px solid #e0e0e0;
}

/* 幽灵按钮 */
.mobile-btn-ghost {
    background: transparent;
    color: #667eea;
    border: 1px solid #667eea;
}

/* ========== AI 对话气泡 ========== */
.chat-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    margin: 10px 0;
    max-width: 80%;
    word-wrap: break-word;
    line-height: 1.6;
    font-size: 15px;
}

.chat-bubble.user {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 4px;
}

.chat-bubble.ai {
    background: white;
    color: #333;
    margin-right: auto;
    border-bottom-left-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* ========== 输入框样式 ========== */
.mobile-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    font-size: 15px;
    outline: none;
    transition: border-color 0.3s ease;
}

.mobile-input:focus {
    border-color: #667eea;
}

.mobile-input::placeholder {
    color: #999;
}

/* ========== 标签页样式 ========== */
.tab-bar {
    display: flex;
    gap: 10px;
    padding: 10px 15px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none; /* Firefox */
}

.tab-bar::-webkit-scrollbar {
    display: none; /* Chrome/Safari */
}

.tab-item {
    min-width: 80px;
    padding: 10px 20px;
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 20px;
    text-align: center;
    font-size: 14px;
    color: #666;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
}

.tab-item.active {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-color: transparent;
}

.tab-item:active {
    transform: scale(0.95);
}

/* ========== 加载动画 ========== */
.loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.2);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ========== 空状态 ========== */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state-icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 18px;
    color: #666;
    margin-bottom: 10px;
}

.empty-state-desc {
    font-size: 14px;
    color: #999;
    line-height: 1.6;
}

/* ========== 列表项样式 ========== */
.list-item {
    display: flex;
    align-items: center;
    padding: 15px;
    background: white;
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.2s ease;
}

.list-item:active {
    background: #f5f5f5;
}

.list-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-right: 15px;
}

.list-item-content {
    flex: 1;
}

.list-item-title {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin-bottom: 4px;
}

.list-item-desc {
    font-size: 13px;
    color: #999;
}

.list-item-arrow {
    font-size: 18px;
    color: #ccc;
}

/* ========== 模态框样式 ========== */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.modal-overlay.show {
    opacity: 1;
}

.modal-content {
    background: white;
    border-radius: 20px;
    padding: 24px;
    width: 85%;
    max-width: 400px;
    max-height: 80vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.modal-overlay.show .modal-content {
    transform: translateY(0);
}

/* ========== 工具类 ========== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }

.text-center { text-align: center; }
.text-primary { color: #667eea; }
.text-secondary { color: #999; }

.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.mb-10 { margin-bottom: 10px; }
.mb-20 { margin-bottom: 20px; }

/* ========== 响应式适配 ========== */
@media (max-width: 375px) {
    .mobile-header h1 {
        font-size: 16px;
    }
    
    .chat-bubble {
        max-width: 85%;
        font-size: 14px;
    }
    
    .mobile-btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* ========== 暗黑模式（预留） ========== */
@media (prefers-color-scheme: dark) {
    /* 未来支持暗黑模式时的样式 */
    :root {
        --bg-primary: #1a1a1a;
        --bg-secondary: #2a2a2a;
        --text-primary: #ffffff;
        --text-secondary: #999999;
    }
}


/* ===== 2026-09-09 简洁灰化覆盖（多维鹰·AI智能中控台视觉收敛；后置同文件覆盖）===== */
.mobile-btn-primary,.chat-bubble.user,.user-message,.mode-btn.active,.btn-primary-mobile,
.form-submit-button,.form-button.form-submit-button,.profile-avatar,.welcome-card,.send-btn,#send-btn{
  background:#eef2f7 !important;background-image:none !important;color:#1e293b !important;
  border:none !important;box-shadow:none !important;}
.chat-bubble,.chat-bubble.ai,.chat-bubble.user,.ai-message,.message-bubble{
  font-size:14px !important;line-height:1.7 !important;color:#1e293b !important;}
.chat-bubble.ai,.ai-message{background:#f1f5f9 !important;background-image:none !important;}
.function-nav button{
  background:#f1f5f9 !important;background-image:none !important;color:#475569 !important;
  border:none !important;box-shadow:none !important;font-size:12px !important;
  padding:5px 11px !important;border-radius:15px !important;margin:0 !important;transform:none !important;}
#chat-input,.ai-chat-input{font-size:14px !important;border:1px solid #e2e8f0 !important;border-radius:16px !important;}
.mobile-header h1{font-size:15px !important;color:#334155 !important;}
.nav-item span{font-size:11px !important;}
.text-primary{color:#64748b !important;}