/* 全局变量 */
:root {
    /* 主色调 - 统一蓝色 */
    --primary-blue: #2196F3;
    --primary-blue-hover: #1976D2;
    
    /* 柔和卡片背景色 - 纯色无边框 */
    --card-blue-light: #E3F2FD;      /* 浅蓝 */
    --card-green-light: #C8E6C9;     /* 浅绿 */
    --card-red-light: #FFCDD2;       /* 浅红 */
    --card-yellow-light: #FFF9C4;    /* 浅黄 */
    --card-cyan-light: #B2EBF2;      /* 浅青 */
    --card-purple-light: #E1BEE7;    /* 浅紫 */
    
    /* 背景色 */
    --bg-main: #f5f7fa;
    --bg-white: #ffffff;
    --bg-gray: #f5f5f5;
    --bg-tab-inactive: #f5f5f5;      /* Tab未选中背景 */
    
    /* 文字颜色 */
    --text-dark: #333333;
    --text-medium: #666666;
    --text-light: #999999;
    
    /* 边框 */
    --border-light: #e8eaed;
    
    /* 阴影 - 非常柔和 */
    --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 2px 6px rgba(0, 0, 0, 0.08);
    
    /* 圆角 */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 12px;
}

/* 页面基础 */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 25%, #f093fb 50%, #4facfe 75%, #00f2fe 100%) !important;
    background-size: 400% 400% !important;
    animation: gradientShift 15s ease infinite !important;
    color: var(--text-dark) !important;
    font-size: 14px;
    line-height: 1.6;
    position: relative;
}

/* 添加柔和的覆盖层，使背景更柔和 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.85);
    pointer-events: none;
    z-index: -1;
}

/* 背景渐变动画 */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* Tab按钮组 - 参考图风格 */
.tab-group {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    justify-content: center;
}

.tab-btn {
    padding: 10px 20px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    color: var(--text-dark);
    border: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    line-height: 1.5;
}

.tab-btn:hover {
    background: linear-gradient(135deg, #BBDEFB 0%, #90CAF9 100%);
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.2);
    transform: translateY(-1px);
}

.tab-btn.active {
    background: linear-gradient(135deg, #AB47BC 0%, #7B1FA2 100%) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(123, 31, 162, 0.4);
}

/* 统计卡片 - 纯色柔和背景，无边框 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--card-blue-light);
    border-radius: var(--radius-lg);
    padding: 24px 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.stat-card:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px) scale(1.02);
}

/* 不同颜色的统计卡片 */
.stat-card.blue { background: var(--card-blue-light); }
.stat-card.green { background: var(--card-green-light); }
.stat-card.red { background: var(--card-red-light); }
.stat-card.yellow { background: var(--card-yellow-light); }
.stat-card.cyan { background: var(--card-cyan-light); }
.stat-card.purple { background: var(--card-purple-light); }

.stat-card-number {
    font-size: 36px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    line-height: 1;
}

.stat-card-label {
    font-size: 13px;
    color: var(--text-medium);
}

/* 白色内容卡片 - 柔和阴影，无边框 */
.content-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.3);
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.content-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-2px);
}

/* 卡片标题 */
.card-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title::before {
    content: '📊';
    font-size: 18px;
}

/* Layui卡片覆盖 - 移除边框，添加柔和阴影 */
.layui-card {
    border: 1px solid rgba(255, 255, 255, 0.3) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08) !important;
    border-radius: var(--radius-lg) !important;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.layui-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12) !important;
    transform: translateY(-2px);
}

.layui-card-header {
    background: rgba(255, 255, 255, 0.8) !important;
    border-bottom: 1px solid var(--border-light) !important;
    padding: 16px 20px !important;
    font-size: 15px !important;
    font-weight: 600 !important;
    color: var(--text-dark) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: wrap !important;
    gap: 10px !important;
    min-height: 50px !important;
    overflow: visible !important;
    position: relative !important;
}

.layui-card-header > div {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    flex-wrap: wrap !important;
}

.card-header {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    flex-wrap: wrap !important;
    gap: 10px !important;
    width: 100% !important;
    box-sizing: border-box !important;
}

/* 确保card-header内的按钮容器不脱离文档流 */
.layui-card-header .custom-switch,
.card-header .custom-switch,
.layui-card-header button,
.card-header button {
    position: relative !important;
    z-index: 1 !important;
    margin: 0 !important;
}

.layui-card-body {
    padding: 20px !important;
    background: transparent !important;
}

/* 模式切换按钮 */
.switch-btn {
    padding: 10px 20px !important;
    border-radius: var(--radius-md) !important;
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%) !important;
    color: var(--text-dark) !important;
    border: none !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    cursor: pointer;
    transition: all 0.2s ease !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    gap: 6px !important;
}

.switch-btn:hover {
    background: linear-gradient(135deg, #BBDEFB 0%, #90CAF9 100%) !important;
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.2) !important;
    transform: translateY(-1px);
}

.switch-btn.active {
    background: linear-gradient(135deg, #AB47BC 0%, #7B1FA2 100%) !important;
    color: white !important;
    box-shadow: 0 4px 12px rgba(123, 31, 162, 0.4) !important;
}

/* 按钮样式统一 */
.layui-btn {
    border-radius: var(--radius-md) !important;
    padding: 10px 20px !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    transition: all 0.2s ease !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    text-align: center !important;
    line-height: 1.5 !important;
    border: none !important;
}

/* 主要按钮 - 蓝色渐变 */
.layui-btn-normal,
.layui-btn-primary {
    background: linear-gradient(135deg, #42A5F5 0%, #2196F3 100%) !important;
    color: white !important;
    box-shadow: 0 3px 8px rgba(33, 150, 243, 0.3) !important;
}

.layui-btn-normal:hover,
.layui-btn-primary:hover {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%) !important;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4) !important;
    transform: translateY(-1px);
}

/* 成功按钮 - 绿色渐变 */
.layui-btn-success {
    background: linear-gradient(135deg, #66BB6A 0%, #43A047 100%) !important;
    color: white !important;
    box-shadow: 0 3px 8px rgba(67, 160, 71, 0.3) !important;
}

.layui-btn-success:hover {
    background: linear-gradient(135deg, #43A047 0%, #2E7D32 100%) !important;
    box-shadow: 0 4px 12px rgba(67, 160, 71, 0.4) !important;
    transform: translateY(-1px);
}

/* 危险/警告按钮 - 橙红渐变 */
.layui-btn-danger {
    background: linear-gradient(135deg, #FF7043 0%, #F4511E 100%) !important;
    color: white !important;
    box-shadow: 0 3px 8px rgba(244, 81, 30, 0.3) !important;
}

.layui-btn-danger:hover {
    background: linear-gradient(135deg, #F4511E 0%, #E64A19 100%) !important;
    box-shadow: 0 4px 12px rgba(244, 81, 30, 0.4) !important;
    transform: translateY(-1px);
}

/* 小号按钮 */
.layui-btn-sm {
    padding: 8px 16px !important;
    font-size: 13px !important;
}

/* 大号按钮 */
.layui-btn-lg {
    padding: 12px 24px !important;
    font-size: 15px !important;
}

/* 自定义Switch开关 - 单按钮带渐变 */
.custom-switch {
    position: relative;
    padding: 6px 30px;
    border-radius: 16px;
    background: linear-gradient(135deg, #BDBDBD 0%, #9E9E9E 100%);
    color: white;
    border: none;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: 120px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    text-align: center;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.custom-switch:hover {
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.2);
    transform: translateY(-1px);
}

.custom-switch.active {
    background: linear-gradient(135deg, #66BB6A 0%, #43A047 100%);
    box-shadow: 0 3px 8px rgba(67, 160, 71, 0.4);
}

.custom-switch .switch-icon {
    position: absolute;
    left: 3px;
    top: 50%;
    transform: translateY(-50%);
    width: 26px;
    height: 26px;
    background: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    font-size: 10px;
    color: transparent;
}

.custom-switch.active .switch-icon {
    left: calc(100% - 29px);
}

.custom-switch .switch-text {
    display: inline-block;
    user-select: none;
}

/* 上传按钮特殊样式 - 白色图标 */
#image-browse-btn,
#sketch-browse-btn,
#video-browse-btn {
    background: linear-gradient(135deg, #42A5F5 0%, #2196F3 100%) !important;
    color: white !important;
    box-shadow: 0 3px 8px rgba(33, 150, 243, 0.3) !important;
}

#image-browse-btn:hover,
#sketch-browse-btn:hover,
#video-browse-btn:hover {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%) !important;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4) !important;
}

#image-browse-btn i,
#sketch-browse-btn i,
#video-browse-btn i {
    color: white !important;
    font-size: 18px !important;
    margin-right: 6px;
}

/* 转成线稿按钮 - 蓝色渐变 */
#generate-sketch-btn {
    background: linear-gradient(135deg, #42A5F5 0%, #2196F3 100%) !important;
    color: white !important;
    box-shadow: 0 3px 8px rgba(33, 150, 243, 0.3) !important;
    border: none !important;
}

#generate-sketch-btn:hover {
    background: linear-gradient(135deg, #2196F3 0%, #1976D2 100%) !important;
    box-shadow: 0 4px 12px rgba(33, 150, 243, 0.4) !important;
    transform: translateY(-1px);
}

#generate-sketch-btn i {
    color: white !important;
    margin-right: 6px;
}

/* 清理按钮 - 确保橙红渐变 */
#clear-sketch-btn,
#clear-image-btn {
    background: linear-gradient(135deg, #FF7043 0%, #F4511E 100%) !important;
    color: white !important;
    box-shadow: 0 3px 8px rgba(244, 81, 30, 0.3) !important;
    border: none !important;
}

#clear-sketch-btn:hover,
#clear-image-btn:hover {
    background: linear-gradient(135deg, #F4511E 0%, #E64A19 100%) !important;
    box-shadow: 0 4px 12px rgba(244, 81, 30, 0.4) !important;
    transform: translateY(-1px);
}

#clear-sketch-btn i,
#clear-image-btn i {
    color: white !important;
    margin-right: 6px;
}

/* 表单元素 */
.layui-input,
.layui-textarea,
.layui-select {
    border: 1px solid var(--border-light) !important;
    border-radius: var(--radius-md) !important;
    padding: 8px 12px !important;
    font-size: 14px !important;
    transition: all 0.2s ease !important;
}

.layui-input:focus,
.layui-textarea:focus {
    border-color: var(--primary-blue) !important;
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1) !important;
    outline: none;
}

/* 文件上传区域 - 无边框虚线，改为柔和背景 */
.upload-zone {
    background: var(--bg-gray);
    border-radius: var(--radius-lg);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px dashed var(--border-light);
}

.upload-zone:hover {
    background: var(--card-blue-light);
    border-color: var(--primary-blue);
}

.upload-zone i {
    font-size: 48px;
    color: var(--primary-blue);
    margin-bottom: 12px;
}

.upload-zone h3 {
    color: var(--text-dark);
    font-size: 16px;
    font-weight: 600;
    margin: 0 0 8px 0;
}

.upload-zone p {
    color: var(--text-medium);
    font-size: 13px;
    margin: 0;
}

/* 图片预览 */
.preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.preview-item {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    aspect-ratio: 1;
    background: var(--bg-gray);
    transition: all 0.2s ease;
}

.preview-item:hover {
    box-shadow: var(--shadow-hover);
}

.preview-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 线稿图区域的图片渲染优化 - 保持原始算法生成的清晰效果 */
#sketch-preview-container .preview-item.sketch-converted img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
}

/* 提示词列表 */
.prompt-item {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 12px;
    margin-bottom: 8px;
    box-shadow: var(--shadow-card);
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.prompt-item:hover {
    box-shadow: var(--shadow-hover);
    background: var(--card-blue-light);
}

/* 表格美化 - 无边框，柔和阴影 */
.layui-table {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    border: none;
}

.layui-table thead tr {
    background: var(--bg-gray) !important;
}

.layui-table thead tr th {
    border: none !important;
    color: var(--text-dark) !important;
    font-weight: 600 !important;
    font-size: 13px !important;
    padding: 12px 16px !important;
}

.layui-table tbody tr {
    transition: background 0.15s ease;
    border: none;
}

.layui-table tbody tr:hover {
    background: var(--bg-gray) !important;
}

.layui-table tbody tr td {
    border: none !important;
    border-bottom: 1px solid var(--border-light) !important;
    padding: 12px 16px !important;
    font-size: 13px !important;
}

/* 徽章/标签 - 圆润设计 */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    border: none;
}

.badge.success {
    background: #4CAF50;
    color: white;
}

.badge.info {
    background: var(--primary-blue);
    color: white;
}

.badge.warning {
    background: #FF9800;
    color: white;
}

.badge.error {
    background: #F44336;
    color: white;
}

/* 进度条 */
.layui-progress {
    border-radius: 10px !important;
    background: var(--bg-gray) !important;
    height: 8px !important;
    overflow: hidden;
}

.layui-progress-bar {
    background: var(--primary-blue) !important;
}

/* 滚动条美化 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: #d1d5db;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* 加载动画 */
.loading-spinner {
    border: 3px solid var(--bg-gray);
    border-top: 3px solid var(--primary-blue);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-medium);
}

.empty-state i {
    font-size: 64px;
    color: var(--border-light);
    margin-bottom: 16px;
}

/* ========== PC端响应式断点 ========== */

/* 小笔记本 1366px - 1599px */
@media (min-width: 1366px) and (max-width: 1599px) {
    .stats-grid {
        grid-template-columns: repeat(3, 1fr) !important;
        gap: 14px;
    }
    
    .stat-card {
        padding: 20px 16px;
    }
    
    .stat-card-number {
        font-size: 32px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
        gap: 10px;
    }
    
    .layui-btn {
        padding: 9px 18px !important;
        font-size: 13px !important;
    }
}

/* 标准桌面 1600px - 2199px (主流 1920px) */
@media (min-width: 1600px) and (max-width: 2199px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr) !important;
        gap: 16px;
    }
    
    .stat-card {
        padding: 24px 20px;
    }
    
    .stat-card-number {
        font-size: 36px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 12px;
    }
}

/* 2K显示器 2200px - 3199px (2560px) */
@media (min-width: 2200px) and (max-width: 3199px) {
    .stats-grid {
        grid-template-columns: repeat(5, 1fr) !important;
        gap: 18px;
    }
    
    .stat-card {
        padding: 26px 22px;
    }
    
    .stat-card-number {
        font-size: 40px;
    }
    
    .stat-card-label {
        font-size: 14px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 14px;
    }
    
    .layui-btn {
        padding: 11px 22px !important;
        font-size: 15px !important;
    }
    
    .layui-card-header {
        font-size: 16px !important;
        padding: 18px 22px !important;
    }
}

/* 4K显示器 3200px+ */
@media (min-width: 3200px) {
    .stats-grid {
        grid-template-columns: repeat(6, 1fr) !important;
        gap: 20px;
    }
    
    .stat-card {
        padding: 30px 24px;
    }
    
    .stat-card-number {
        font-size: 44px;
    }
    
    .stat-card-label {
        font-size: 15px;
    }
    
    .preview-grid {
        grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
        gap: 16px;
    }
    
    .layui-btn {
        padding: 12px 24px !important;
        font-size: 16px !important;
    }
    
    .layui-card-header {
        font-size: 17px !important;
        padding: 20px 24px !important;
    }
    
    .content-card {
        padding: 24px;
    }
}