/* ========== CSS变量定义 ========== */
/* 定义全局变量，用于颜色、尺寸、阴影等，便于统一管理和修改主题 */
:root {
    /* 背景动画 */
    --animation-bg-speed: 20s;
    
    /* 颜色变量 */
    --color-primary: #4a6d7c;
    --color-primary-rgb: 74, 109, 124;
    --color-secondary: #147a61;
    --color-success: #6b9c70;
    --color-warning: #e67e22;
    --color-danger: #d35400;
    --color-light-gray: #cbd5e1;
    --color-medium-gray: #64748b;
    --color-dark-gray: #2c3e50;
    --color-white: #ffffff;
    --color-black: #000000;
    --color-gradient-start: #4a6d7c;
    --color-gradient-mid1: #8da383;
    --color-gradient-mid2: #8a6a9c;
    --color-gradient-mid3: #d18a66;
    --color-gradient-end: #147a61;
    
    /* 透明度 */
    --opacity-light: 0.3;
    --opacity-medium: 0.5;
    --opacity-heavy: 0.7;
    
    /* 尺寸变量 */
    --border-radius-small: 4px;
    --border-radius-medium: 8px;
    --border-radius-large: 12px;
    --spacing-xs: 2px;
    --spacing-sm: 4px;
    --spacing-md: 8px;
    --spacing-lg: 12px;
    --spacing-xl: 20px;
    --spacing-xxl: 25px;
    
    /* 阴影 */
    --shadow-light: 0 4px 12px rgba(0,0,0,0.2);
    --shadow-medium: 0 10px 30px rgba(0,0,0,0.3);
    --shadow-heavy: 0 25px 50px rgba(0,0,0,0.2);
    
    /* 字体大小 */
    --font-size-xs: 9px;
    --font-size-sm: 12px;
    --font-size-md: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 20px;
    --font-size-xxl: 24px;
    
    /* 过渡效果 */
    --transition-fast: 0.1s ease;
    --transition-medium: 0.2s ease;
    --transition-slow: 0.8s ease;
}

/* ========== 基础重置 ========== */
/* 重置浏览器默认样式，确保一致性，清除边距、填充，使用border-box */
* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

/* ========== 主体样式 ========== */
/* body元素的整体布局和背景，设置字体、背景渐变动画、居中布局 */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: linear-gradient(-45deg, 
        var(--color-gradient-start), 
        var(--color-gradient-mid1), 
        var(--color-gradient-mid2), 
        var(--color-gradient-mid3), 
        var(--color-gradient-end));
    background-size: 400% 400%;
    animation: gradientBG var(--animation-bg-speed) ease infinite;
    background-attachment: fixed;
    min-height: 100vh; 
    padding: var(--spacing-sm) var(--spacing-xl) var(--spacing-xl);
    display: flex; 
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: all var(--transition-fast);
}

/* 模式类 - 用于JavaScript动态切换布局模式 */
body.mode-6 { }
body.mode-9 { }
body.mode-12 { }

/* 背景动画 */
@keyframes gradientBG { 
    0% { background-position: 0% 50%; } 
    50% { background-position: 100% 50%; } 
    100% { background-position: 0% 50%; } 
}

/* ========== 主卡片样式 ========== */
/* 主要内容容器，设置宽度、背景、模糊效果、阴影 */
.main-card {
    width: 100%; 
    max-width: 1050px;
    background: rgba(235, 230, 230, 0.75); 
    backdrop-filter: blur(15px); 
    border-radius: var(--border-radius-large); 
    padding: 40px;
    box-shadow: var(--shadow-heavy);
    transition: all var(--transition-fast);
}

/* ========== 头部样式 ========== */
/* 标题和按钮容器，居中标题，定位按钮 */
.header { 
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.header h1 { 
    color: var(--color-dark-gray); 
    text-align: center; 
    font-size: var(--font-size-xxl); 
    padding-bottom: 6px;
    margin-bottom: var(--spacing-sm); 
    letter-spacing: 2px; 
    font-weight: 600; 
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

/* 头部按钮通用样式 - 已按要求修改尺寸和字号 */
.header-btn {
    position: absolute;
    top: 0;
    background: rgba(255, 255, 255, var(--opacity-light));
    border: 1px solid rgba(var(--color-primary-rgb), var(--opacity-light));
    border-radius: var(--border-radius-medium);
    width: 36px;
    height: 36px;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-medium);
	z-index: 10; 
}

.header-btn:hover {
    background: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
	box-shadow: 0 4px 5px rgba(0,0,0,0.2);
}

.header-btn:focus {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}


/* 首页按钮 - 已按要求修改尺寸和字号 */
.home-btn {
    position: absolute !important;
    right: 84px !important;	
    width: 36px !important;
    height: 36px !important;
    font-size: 18px !important;		
}

/* 发票按钮 - 已按要求修改尺寸和字号 */
.invoice-btn {
    position: absolute !important;
    right: 42px !important;
    width: 36px !important;
    height: 36px !important;
    font-size: 18px !important;
}

/* 帮助按钮 - 已按要求修改尺寸和字号 */
.help-btn {
    position: absolute !important;
    right: 0 !important;
    width: 36px !important;
    height: 36px !important;
    font-size: 18px !important;
}

/* ========== 顶部布局 ========== */
/* 上传区和设置面板容器，flex布局，调整间隙 */
.top-layout { 
    display: flex; 
    gap: var(--spacing-lg); 
	margin-top: 8px;
    margin-bottom: var(--spacing-sm); 
    align-items: stretch; 
}

/* ========== 拖拽区域容器 ========== */
/* 文件上传区，列布局，包含拖拽区、反馈、进度 */
.drop-zone-container { 
    flex: 1.2; 
    display: flex; 
    flex-direction: column; 
    gap: var(--spacing-sm); 
}

/* 拖拽区域 */
.drop-zone {
    flex: 1; 
    border: 0.5px dashed var(--color-primary); 
    border-radius: var(--border-radius-large);
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center; 
    text-align: center; 
    padding: var(--spacing-xxl); 
    cursor: pointer; 
    background: rgba(255, 255, 255, var(--opacity-medium));
    box-shadow: var(--shadow-light);
    transition: all var(--transition-fast);
}

.drop-zone:hover { 
    background: rgba(255, 255, 255, 0.6); 
    transform: translateY(-2px);
}

.drop-zone:focus {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
    background: rgba(255, 255, 255, 0.6);
}

.upload-icon { 
    font-size: 40px; 
    color: var(--color-primary); 
    margin-bottom: 10px; 
}

.upload-text { 
    font-size: var(--font-size-lg); 
    font-weight: 600; 
    color: var(--color-dark-gray); 
    margin-bottom: var(--spacing-md); 
}

.upload-subtext { 
    font-size: var(--font-size-md); 
    color: #576574; 
}

.upload-subtext span { 
    color: #b97980; 
    text-decoration: underline; 
}

.upload-limit { 
    font-size: var(--font-size-sm); 
    color: #576574; 
    margin-top: var(--spacing-sm); 
}

/* 反馈区域 */
#feedbackArea { 
    display: none; 
    text-align: center; 
}

.success-msg { 
    color: var(--color-secondary); 
    font-size: var(--font-size-lg); 
    font-weight: 700; 
    margin-bottom: var(--spacing-xs); 
}

.reset-hint { 
    color: var(--color-warning); 
    font-size: var(--font-size-md); 
    font-weight: 500; 
    margin-top: var(--spacing-xs);
}

/* ========== 文件列表容器样式 ========== */
/* 显示已加载文件，头部、滚动列表 */
.file-list-container {
    width: 100%;
    margin: var(--spacing-md) 0;
}

.file-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--font-size-md);
    font-weight: 600;
    color: var(--color-dark-gray);
    margin-bottom: 8px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

.continue-add-btn {
    background: var(--color-warning);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 12px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.continue-add-btn:hover {
    background: #c96a1a;
}

/* 文件列表滚动容器 - 始终显示滚动条 */
.file-list-scroll {
    max-height: 150px;
    overflow-x: hidden;
    overflow-y: scroll !important;
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.4);
    padding: 6px;
}

/* 文件列表样式 */
.file-list {
    font-size: var(--font-size-sm);
}

/* 文件项样式 */
.file-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 2px 30px 2px 10px;
    margin: 0;
    background: rgba(255, 255, 255, 0.7);
    border-radius: var(--border-radius-small);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    height: auto;
    min-height: auto;
    position: relative;
    transition: all var(--transition-fast);
}

.file-item:last-child {
    border-bottom: none;
}

.file-item:hover {
    background: rgba(248, 249, 250, 0.8);
}

.file-number {
    font-size: 12px;
    color: var(--color-dark-gray);
    font-weight: 400;
    min-width: 20px;
    flex-shrink: 0;
}

.file-name {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 12px;
    color: var(--color-dark-gray);
    padding-right: 8px;
}

.file-status-btn {
    display: inline-flex;
    align-items: center;
    gap: 3px;
    padding: 2px 8px;
    background: var(--color-success);
    color: var(--color-white);
    border: none;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 500;
    cursor: default;
    flex-shrink: 0;
    pointer-events: none;
    height: 20px;
    line-height: 1;
}

.file-status-btn .status-icon {
    font-size: 11px;
    font-weight: bold;
}

.file-status-btn .status-text {
    font-size: 11px;
}

.file-delete {
    position: absolute;
    right: 6px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background: rgba(74, 109, 124, 0.2);
    border: none;
    border-radius: 50%;
    color: #4a6d7c;
    font-size: 14px;
    line-height: 18px;
    text-align: center;
    cursor: pointer;
    transition: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-delete:hover {
    background: #e67e22;
    color: white;
    transform: translateY(-50%);
}

/* 确保滚动条在内容少时也显示 */
.file-list-scroll::-webkit-scrollbar {
    width: 8px !important;
}

.file-list-scroll::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}

.file-list-scroll::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

.file-list-scroll::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Firefox 滚动条样式 */
.file-list-scroll {
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.2) rgba(0, 0, 0, 0.05);
}

/* ========== 进度条样式 ========== */
/* 文件处理进度显示，条形进度和文本叠加 */
.progress-wrapper { 
    position: relative; 
    height: 24px; 
    background: rgba(0, 0, 0, 0.1); 
    border-radius: var(--border-radius-large); 
    overflow: hidden; 
    display: none; 
}

.progress-bar { 
    height: 100%; 
    width: 0%; 
    background: linear-gradient(90deg, #77b282, #429852, #0c7820);
    transition: width var(--transition-slow);
}

.progress-text { 
    position: absolute; 
    width: 100%; 
    height: 100%; 
    top: 0; 
    left: 0; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    font-size: var(--font-size-sm); 
    font-weight: 500; 
    color: var(--color-white); 
    pointer-events: none; 
}

/* ========== 设置面板 ========== */
/* 配置选项容器，网格布局设置单元 */
.settings-panel { 
    flex: 1; 
    display: grid; 
    grid-template-columns: 1fr 1fr;
    gap: 10px; 
}

.setting-unit { 
    height: 100%;
    background: rgba(170, 180, 180, 0.75); 
    border-radius: var(--border-radius-large); 
    padding: 15px; 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: center;
    box-shadow: var(--shadow-light);
    transition: transform var(--transition-fast);
}

.setting-unit:hover {
    transform: translateY(-2px);
}

.unit-full { 
    grid-column: span 1; 
}

.unit-header { 
    font-size: var(--font-size-md); 
    font-weight: 600; 
    color: var(--color-dark-gray); 
    margin-bottom: var(--spacing-md); 
}

/* ========== 按钮样式 ========== */
/* 开关、模式、工具栏按钮样式 */
/* 裁剪线开关按钮 */
.toggle-btn { 
    width: 70%; 
    height: 35px; 
    border-radius: var(--border-radius-large); 
    border: none; 
    font-weight: 600; 
    cursor: pointer; 
    transition: all var(--transition-fast); 
}

.toggle-btn:focus {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

.btn-on { 
    background: var(--color-success); 
    color: var(--color-white); 
}

.btn-off { 
    background: var(--color-light-gray); 
    color: var(--color-medium-gray); 
}

/* 模式选择按钮组 */
.mode-group { 
    display: flex; 
    flex-direction: column;
	align-items: center;
    gap: 10px; 
    width: 80%; 
}

.mode-group.vertical {
    flex-direction: column;
    gap: 10px;
}

/* 模式按钮 */
.btn-mode { 
    flex: 0 0 auto; 
    width: 100px; 
    height: 35px;
    border-radius: var(--border-radius-large); 
    border: 1px solid var(--color-light-gray); 
    background: var(--color-light-gray); 
    color: var(--color-primary); 
    font-weight: 600; 
    cursor: pointer; 
    transition: all var(--transition-fast);
    font-size: var(--font-size-md);
}

.btn-mode:hover {
    border-color: var(--color-primary);
}

.btn-mode:focus {
    outline: 2px solid var(--color-secondary);
    outline-offset: 2px;
}

.btn-mode.active { 
    background: var(--color-success); 
    color: var(--color-white); 
    border-color: var(--color-primary); 
}

/* ========== 工具栏 ========== */
/* 导出、打印、重置按钮容器，flex布局按钮 */
.toolbar { 
    display: flex; 
    gap: var(--spacing-xl); 
    margin-top: var(--spacing-xl); 
}

/* 大按钮 */
.btn-large { 
    flex: 1; 
    height: 52px; 
    border-radius: var(--border-radius-large); 
    border: none; 
    font-weight: 700; 
    cursor: pointer; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    gap: 10px; 
    color: var(--color-white); 
    transition: all var(--transition-fast);
}

.btn-large:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-large:focus:not(:disabled) {
    outline: 3px solid var(--color-secondary);
    outline-offset: 2px;
}

.btn-large:disabled { 
    opacity: 0.3; 
    cursor: not-allowed; 
    transform: none !important;
    box-shadow: none !important;
}

.btn-pdf { 
    background: #94a3b8; 
}

.btn-print { 
    background: var(--color-secondary); 
}

.btn-reset { 
    background: var(--color-white); 
    color: var(--color-medium-gray); 
    border: 1px solid var(--color-light-gray); 
}

.btn-reset:hover {
    background: #f8fafc;
    border-color: #94a3b8;
}

/* ========== 预览网格 ========== */
/* 显示布局预览，网格布局页面 */
#previewGrid { 
    display: grid; 
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); 
    gap: var(--spacing-xl); 
    margin-top: var(--spacing-xl); 
    width: 100%;
}

.preview-page { 
    background: var(--color-white); 
    position: relative; 
    box-shadow: 0 15px 35px rgba(0,0,0,0.2); 
    margin: 0 auto; 
    overflow: hidden; 
    transition: transform var(--transition-fast);
    width: 100%;
}

.preview-page:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
}

/* 页面方向 */
.v-page { 
    aspect-ratio: 210/297; 
} 

.h-page { 
    aspect-ratio: 297/210; 
}

/* ========== 槽位样式 - 统一所有模式 ========== */
/* 图片容器和显示，统一槽位和图片行为 */
.slot { 
    position: absolute !important; 
    display: flex !important;
    align-items: flex-start !important; /* 顶部对齐 */
    justify-content: center !important;
    box-sizing: border-box !important;
    background: var(--color-white) !important; /* 留白背景 */
    overflow: hidden !important; /* 超出部分隐藏 */
    z-index: 1 !important;
}

/* ========== 图片样式 - 统一所有模式 ========== */
.slot img { 
    width: 100% !important; /* 宽度填满槽位 */
    height: auto !important; /* 高度自适应保持比例 */
    max-height: none !important;
    object-fit: cover !important; /* 保持比例，超出部分裁剪 */
    object-position: top center !important; /* 顶部对齐 */
    display: block !important;
    background: var(--color-white) !important;
}

/* ========== 6张模式特殊样式 ========== */
body.mode-6 .slot {
    overflow: hidden !important;
    display: flex !important;
    align-items: flex-start !important;
    justify-content: center !important;
    background: var(--color-white) !important;
}

body.mode-6 .slot img {
    width: 100% !important;
    height: auto !important;
    object-fit: cover !important;
    object-position: top center !important;
    background: var(--color-white) !important;
}

/* ========== 9张模式特殊样式 ========== */
body.mode-9 .slot {
    overflow: hidden !important;
    display: flex !important;
    align-items: flex-start !important;
    justify-content: center !important;
    background: var(--color-white) !important;
}

body.mode-9 .slot img {
    width: 100% !important;
    height: auto !important;
    object-fit: cover !important;
    object-position: top center !important;
    background: var(--color-white) !important;
}

/* ========== 12张模式特殊样式 ========== */
body.mode-12 .slot {
    overflow: hidden !important;
    display: flex !important;
    align-items: flex-start !important;
    justify-content: center !important;
    background: var(--color-white) !important;
}

body.mode-12 .slot img {
    width: 100% !important;
    height: auto !important;
    object-fit: cover !important;
    object-position: top center !important;
    background: var(--color-white) !important;
}

/* ========== 裁剪线样式 ========== */
/* 虚线参考线，垂直和水平线 */
.cut-line {
    position: absolute;
    pointer-events: none;
    z-index: 10;
}

.cut-line.vertical {
    border-left: 0.5px dashed var(--color-danger);
    height: 100%;
}

.cut-line.horizontal {
    border-top: 0.5px dashed var(--color-danger);
    width: 100%;
}

/* ========== 浏览器兼容性警告 ========== */
/* 顶部警告条，显示不支持提示 */
.browser-warning {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: #ffcc00;
    color: #333;
    padding: 10px 15px;
    text-align: center;
    font-size: var(--font-size-md);
    font-weight: 500;
    z-index: 9999;
    display: none;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.browser-warning-content {
    max-width: 1050px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.browser-warning-close {
    background: none;
    border: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: #333;
    padding: 0 10px;
}

/* ========== 打印相关样式 ========== */
/* 媒体查询，确保打印输出正确，隐藏非打印元素，调整页面大小、方向 */
@media print {
    /* 隐藏所有非打印内容 */
    body * {
        visibility: hidden;
    }
    
    /* 只显示预览网格 */
    #previewGrid,
    #previewGrid * {
        visibility: visible;
    }
    
    /* 强制纵向打印样式 - 6张模式 - 与预览一致 */
    body.mode-6 .preview-page {
        size: A4 portrait !important;
        width: 210mm !important;
        height: 297mm !important;
        transform: none !important;
        box-shadow: none !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        overflow: hidden !important; /* 与预览保持一致 */
        padding: 0 !important;
        margin: 0 !important;
    }
    
    /* 强制纵向打印样式 - 9张模式 - 与预览一致 */
    body.mode-9 .preview-page {
        size: A4 portrait !important;
        width: 210mm !important;
        height: 297mm !important;
        transform: none !important;
        box-shadow: none !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        overflow: hidden !important; /* 与预览保持一致 */
        padding: 0 !important;
        margin: 0 !important;
    }
    
    /* 强制横向打印样式 - 12张模式 - 与预览一致 */
    body.mode-12 .preview-page {
        size: A4 landscape !important;
        width: 297mm !important;
        height: 210mm !important;
        transform: none !important;
        box-shadow: none !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        overflow: hidden !important; /* 与预览保持一致 */
        padding: 0 !important;
        margin: 0 !important;
    }
    
    /* 打印时槽位样式 - 与预览完全一致 */
    .slot {
        position: absolute !important;
        display: flex !important;
        align-items: flex-start !important;
        justify-content: center !important;
        box-sizing: border-box !important;
        background: var(--color-white) !important;
        overflow: hidden !important;
        z-index: 1 !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
    }
    
    /* 打印时图片样式 - 与预览完全一致 */
    .slot img {
        width: 100% !important;
        height: auto !important;
        max-height: none !important;
        object-fit: cover !important;
        object-position: top center !important;
        display: block !important;
        background: var(--color-white) !important;
        margin: 0 !important;
        padding: 0 !important;
        border: none !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    
    /* 6张模式打印样式 - 与预览一致 */
    body.mode-6 .slot {
        overflow: hidden !important;
        display: flex !important;
        align-items: flex-start !important;
        justify-content: center !important;
        background: var(--color-white) !important;
    }
    
    body.mode-6 .slot img {
        width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
        object-position: top center !important;
        background: var(--color-white) !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    
    /* 9张模式打印样式 - 与预览一致 */
    body.mode-9 .slot {
        overflow: hidden !important;
        display: flex !important;
        align-items: flex-start !important;
        justify-content: center !important;
        background: var(--color-white) !important;
    }
    
    body.mode-9 .slot img {
        width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
        object-position: top center !important;
        background: var(--color-white) !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    
    /* 12张模式打印样式 - 与预览一致 */
    body.mode-12 .slot {
        overflow: hidden !important;
        display: flex !important;
        align-items: flex-start !important;
        justify-content: center !important;
        background: var(--color-white) !important;
    }
    
    body.mode-12 .slot img {
        width: 100% !important;
        height: auto !important;
        object-fit: cover !important;
        object-position: top center !important;
        background: var(--color-white) !important;
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }
    
    /* 打印时的裁剪线样式 - 位置与预览一致，颜色调整为打印友好 */
    .cut-line {
        position: absolute !important;
        pointer-events: none !important;
        z-index: 10 !important;
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .cut-line.vertical {
        border-left: 0.3mm dashed #AAAAAA !important;
        height: 100% !important;
        top: 0 !important;
    }
    
    .cut-line.horizontal {
        border-top: 0.3mm dashed #AAAAAA !important;
        width: 100% !important;
        left: 0 !important;
    }
    
    /* 页面设置 - 默认纵向 */
    @page {
        margin: 0;
        size: A4 portrait;
    }
    
    /* 针对不同模式设置页面方向 */
    @page portrait-page {
        size: A4 portrait;
        margin: 0;
    }
    
    @page landscape-page {
        size: A4 landscape;
        margin: 0;
    }
    
    /* 6张和9张模式使用纵向 */
    body.mode-6 .preview-page,
    body.mode-9 .preview-page {
        page: portrait-page;
    }
    
    /* 12张模式使用横向 */
    body.mode-12 .preview-page {
        page: landscape-page;
    }
    
    /* 重置body样式 */
    body {
        background: var(--color-white) !important;
        padding: 0 !important;
        margin: 0 !important;
        min-height: auto;
        animation: none !important;
        display: block !important;
        width: 100% !important;
        height: auto !important;
        overflow: visible !important;
    }
    
    /* 主卡片样式重置 */
    .main-card {
        background: none !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
        max-width: none !important;
        backdrop-filter: none !important;
        width: 100% !important;
        height: auto !important;
        display: block !important;
        overflow: visible !important;
    }
    
    /* 隐藏所有非必要元素 */
    .header,
    .top-layout,
    .toolbar,
    .drop-zone-container,
    .settings-panel,
    .progress-wrapper,
    .upload-icon,
    .upload-text,
    .upload-subtext,
    .upload-limit,
    .browser-warning,
    .print-dialog,
    .help-dialog,
    .footer,
    .file-list-container,
    .success-msg,
    .reset-hint {
        display: none !important;
    }
    
    /* 预览网格打印样式 - 与预览保持一致 */
    #previewGrid {
        display: block !important;
        margin: 0 !important;
        padding: 0 !important;
        width: 100% !important;
        height: auto !important;
        position: static !important;
        top: auto !important;
        left: auto !important;
        grid-template-columns: none !important;
        gap: 0 !important;
        overflow: visible !important;
        background: transparent !important;
    }
    
    /* 预览页面打印样式 - 与预览保持一致 */
    .preview-page {
        box-shadow: none !important;
        margin: 0 !important;
        border: none !important;
        overflow: hidden !important; /* 与预览保持一致 */
        transform: none !important;
        position: relative !important;
        page-break-inside: avoid !important;
        break-inside: avoid !important;
        display: block !important;
        background: var(--color-white) !important;
        padding: 0 !important; /* 确保没有内边距 */
    }
    
    /* 除了最后一页，其他页面都添加分页 */
    .preview-page:not(:last-child) {
        page-break-after: always !important;
    }
    
    /* 最后一页不添加分页，避免空白页 */
    .preview-page:last-child {
        page-break-after: avoid !important;
    }
    
    /* 确保打印时预览页面完全填充纸张，与预览比例一致 */
    .preview-page.v-page {
        width: 210mm !important;
        height: 297mm !important;
        aspect-ratio: 210/297 !important; /* 保持与预览一致的比例 */
        max-width: 210mm !important;
        max-height: 297mm !important;
    }
    
    .preview-page.h-page {
        width: 297mm !important;
        height: 210mm !important;
        aspect-ratio: 297/210 !important; /* 保持与预览一致的比例 */
        max-width: 297mm !important;
        max-height: 210mm !important;
    }
}

/* ========== 弹窗样式 ========== */
/* 打印和帮助对话框，固定位置、居中显示 */
/* 打印对话框 */
.print-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.print-dialog-content {
    background: var(--color-white);
    padding: 30px;
    border-radius: var(--border-radius-large);
    max-width: 500px;
    width: 90%;
    box-shadow: var(--shadow-medium);
}

.print-dialog h3 {
    color: var(--color-dark-gray);
    margin-bottom: 15px;
    font-size: var(--font-size-xl);
    text-align: center;
}

.print-dialog p {
    color: #576574;
    margin: 5px 0;
    line-height: 1.5;
}

.print-dialog strong {
    color: var(--color-warning);
}

.print-dialog-buttons {
    display: flex;
    gap: 15px;
    margin-top: var(--spacing-xxl);
}

.print-dialog-btn {
    flex: 1;
    padding: var(--spacing-sm);
    border: none;
    border-radius: var(--border-radius-medium);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.print-dialog-confirm {
    background: var(--color-secondary);
    color: var(--color-white);
}

.print-dialog-confirm:hover {
    background: #0d5d49;
}

.print-dialog-cancel {
    background: #f1f5f9;
    color: var(--color-medium-gray);
    border: 1px solid var(--color-light-gray);
}

.print-dialog-cancel:hover {
    background: #e2e8f0;
}

.print-tip {
    margin-top: 10px;
    font-size: 13px;
    color: #94a3b8;
    font-style: italic;
}

/* 帮助弹窗 */
.help-dialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1001;
}

.help-dialog-content {
    background: var(--color-white);
    padding: 30px;
    border-radius: var(--border-radius-large);
    max-width: 700px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-medium);
    position: relative;
}

.help-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--color-medium-gray);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-medium);
}

.help-close:hover {
    background: #f1f5f9;
    color: var(--color-dark-gray);
}

.help-dialog h2 {
    color: var(--color-dark-gray);
    margin-bottom: var(--spacing-xl);
    font-size: var(--font-size-xxl);
    text-align: center;
    padding-right: 30px;
}

.help-section {
    margin-bottom: var(--spacing-xl);
}

.help-section h3 {
    color: var(--color-secondary);
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.help-section p {
    color: #576574;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    padding-left: 28px;
}

.help-tip {
    background: rgba(20, 122, 97, 0.1);
    border-left: 3px solid var(--color-secondary);
    padding: 10px 15px;
    margin: 15px 0;
    border-radius: 0 6px 6px 0;
    font-size: var(--font-size-md);
}

/* ========== Toast提示样式 ========== */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast {
    min-width: 300px;
    max-width: 500px;
    padding: 12px 20px;
    border-radius: var(--border-radius-medium);
    box-shadow: var(--shadow-medium);
    display: flex;
    align-items: center;
    gap: 12px;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
    pointer-events: auto;
    background: var(--color-white);
    border-left: 4px solid;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-success {
    border-left-color: var(--color-success);
    background: #f0f9f4;
}

.toast-error {
    border-left-color: var(--color-danger);
    background: #fef2f2;
}

.toast-warning {
    border-left-color: var(--color-warning);
    background: #fffbeb;
}

.toast-info {
    border-left-color: var(--color-primary);
    background: #f0f9ff;
}

.toast-icon {
    font-size: 20px;
    flex-shrink: 0;
}

.toast-message {
    flex: 1;
    color: var(--color-dark-gray);
    font-size: var(--font-size-md);
    line-height: 1.5;
}

/* ========== 底部样式 ========== */
.footer {
    width: 100%;
    max-width: 1050px;
    text-align: center;
    padding: 15px 0;
    color: var(--color-medium-gray);
    font-size: var(--font-size-md);
    margin-top: var(--spacing-xl);
}

.footer a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-medium);
}

.footer a:hover {
    color: #0d5d49;
    text-decoration: underline;
}

/* ========== 响应式调整 ========== */
/* 媒体查询，适应小屏，调整字体、宽度等 */
@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }

    .main-card {
        padding: 20px;
    }

    .header h1 {
        font-size: var(--font-size-xl);
    }

    .top-layout {
        flex-direction: column;
        gap: 15px;
    }

    .drop-zone {
        padding: 15px;
    }

    .upload-icon {
        font-size: 30px;
    }

    .upload-text {
        font-size: var(--font-size-md);
    }

    .upload-subtext {
        font-size: var(--font-size-sm);
    }

    .upload-limit {
        font-size: var(--font-size-xs);
    }

    .file-list-scroll {
        max-height: 150px;
    }

    .file-item {
        padding: 2px 30px 2px 8px;
        gap: 6px;
    }
    
    .file-number {
        font-size: 11px;
        min-width: 18px;
    }
    
    .file-name {
        font-size: 11px;
        max-width: 100px;
    }
    
    .file-status-btn {
        padding: 2px 6px;
        height: 18px;
        font-size: 10px;
    }
    
    .file-status-btn .status-icon {
        font-size: 10px;
    }
    
    .file-status-btn .status-text {
        font-size: 10px;
    }
    
    .file-delete {
        font-size: 14px;
    }

    .settings-panel {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .setting-unit {
        padding: 10px;
    }

    .mode-group {
        gap: 8px;
    }

    .btn-mode {
        height: 30px;
        font-size: 13px;
    }

    .toolbar {
        flex-direction: column;
        gap: 10px;
        margin-top: 15px;
    }

    .btn-large {
        height: 45px;
        font-size: 16px;
    }

    #previewGrid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
        margin-top: 15px;
    }

    .help-dialog-content {
        padding: var(--spacing-xl);
        max-height: 85vh;
        width: 95%;
    }
    
    /* 移动端保留修改后的尺寸 */
    .help-btn {
        width: 36px !important;
        height: 36px !important;
        font-size: 18px !important;
    }
    
    /* 移动端保留修改后的尺寸 */
    .home-btn {
        width: 36px !important;
        height: 36px !important;
        font-size: 18px !important;
        right: 84px !important;
    }
    
    /* 移动端保留修改后的尺寸 */
    .invoice-btn {
        width: 36px !important;
        height: 36px !important;
        font-size: 18px !important;
        right: 42px !important;
    }

    .print-dialog-content {
        padding: 20px;
        width: 95%;
    }

    .footer {
        padding: 10px 0;
        font-size: var(--font-size-sm);
        margin-top: 15px;
    }
    
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
    }
    
    .toast {
        min-width: auto;
        max-width: 100%;
    }
}