* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: #F5F7FA;
    color: #222B45;
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    line-height: 1.6;
}

.container {
    width: 100%;
    padding: 0;
    margin: 0;
    background: none;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 更新主色调为纯色系 */
header {
    background-color: #2c3e50;
    padding: 20px;
    color: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* 工具栏纯色背景 */
.toolbar {
    background-color: #ffffff;
    padding: 15px 20px;
    border-bottom: 2px solid #e9ecef;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

header h1 {
    font-size: 1.8rem;
    font-weight: 500;
}

.toolbar {
    background-color: #ffffff;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #e9ecef;
    flex-wrap: wrap;
    gap: 10px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.tool-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* 按钮样式升级 - 纯色版本 */
button, .small-btn, .checkbox-style-btn {
    background: #4F8CFF;
    color: #fff;
    border: none;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(79, 140, 255, 0.10);
    transition: background 0.18s, box-shadow 0.18s, transform 0.12s;
    font-size: 15px;
    font-weight: 500;
    padding: 10px 22px;
    cursor: pointer;
    outline: none;
}

button:hover, .small-btn:hover, .checkbox-style-btn:hover {
    background: #357AE8;
    box-shadow: 0 4px 16px rgba(79, 140, 255, 0.15);
    transform: translateY(-2px) scale(1.03);
}

button:active, .small-btn:active, .checkbox-style-btn:active {
    background: #2851A3;
    box-shadow: 0 2px 8px rgba(79, 140, 255, 0.10);
    transform: scale(0.98);
}

/* 特殊按钮颜色 */
#delete-field {
    background: #FF5A5F;
}

#delete-field:hover {
    background: #D7263D;
}

#save-template {
    background-color: #27ae60;
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

#save-template:hover {
    background-color: #229954;
    box-shadow: 0 8px 25px rgba(39, 174, 96, 0.4);
}

.editor-container {
    display: flex;
    background-color: white;
    border: 1px solid #e9ecef;
    border-top: none;
    flex: 1;
    position: relative;
    overflow: hidden;
}

.template-area {
    flex: 1;
    position: relative;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-color: #f8f9fa;
}

.canvas {
    background-color: white;
    border: 1px solid #e9ecef;
    position: relative;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    margin: 0 auto;
    width: 297mm;
    height: 210mm;
    min-width: 297mm;
    min-height: 210mm;
    max-width: 297mm;
    max-height: 210mm;
    display: block;
    transition: transform 0.3s ease;
}

/* 属性面板样式 */
.properties-panel {
    position: fixed;
    right: 0;
    top: 0;
    width: 320px;
    height: 100vh;
    background: #fff;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.08);
    padding: 20px;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
    border-left: 1px solid #e9ecef;
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(79, 140, 255, 0.07);
}

/* 属性面板标题 */
.properties-panel h3 {
    margin-top: 0;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid #e9ecef;
    color: #222B45;
    font-size: 18px;
    font-weight: 500;
}

/* 属性分组样式 */
.properties-section {
    background-color: #f5f7fa;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(79, 140, 255, 0.05);
    transition: all 0.3s ease;
}

.properties-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(79, 140, 255, 0.08);
}

.properties-section-title {
    margin: 0 0 15px 0;
    font-size: 16px;
    color: #222B45;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 属性组样式 */
.property-group {
    margin-bottom: 15px;
}

.property-group label {
    display: block;
    margin-bottom: 8px;
    color: #2c3e50;
    font-size: 14px;
    font-weight: 600;
}

.property-group input[type="text"],
.property-group input[type="number"],
.property-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 14px;
    background-color: #ffffff;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
    box-sizing: border-box;
}

.property-group input[type="text"]:focus,
.property-group input[type="number"]:focus,
.property-group select:focus {
    border-color: #3498db;
    outline: none;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background-color: #ffffff;
}

/* 坐标组样式 */
.coords-group {
    display: flex;
    gap: 12px;
    margin-bottom: 15px;
}

.coords-group .property-group {
    flex: 1;
    margin-bottom: 0;
}

/* 样式选项容器 */
.style-options-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    background-color: #f9f9fb;
    padding: 8px 12px;
    border-radius: 12px;
}

/* 字体样式选项优化 */
.font-style-options {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    background-color: #f9f9fb;
    padding: 8px 12px;
    border-radius: 6px;
    border: 1px solid #e1e5eb;
}

/* 字体样式按钮 */
.style-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 2px solid #e1e5eb;
    border-radius: 6px;
    background-color: #ffffff;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 0;
    box-shadow: none;
    margin: 0 2px;
}

.style-btn:hover {
    border-color: #4361ee;
    background-color: #f0f4ff;
    transform: none;
    box-shadow: 0 2px 8px rgba(67, 97, 238, 0.15);
}

.style-btn.active {
    border-color: #4361ee;
    background-color: #4361ee;
    color: white;
}

.style-btn.active .icon-bold,
.style-btn.active .icon-italic,
.style-btn.active .icon-underline {
    color: white;
}

.checkbox-label {
    display: none;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: #4361ee;
}

.checkbox-label span {
    font-size: 16px;
    color: #555;
    font-weight: bold;
    min-width: 20px;
    text-align: center;
}

/* 图标样式 */
.icon-bold {
    font-weight: 900;
    font-family: 'Times New Roman', serif;
    font-size: 16px;
    color: #555;
}

.icon-italic {
    font-style: italic;
    font-family: 'Times New Roman', serif;
    font-size: 16px;
    color: #555;
}

.icon-underline {
    text-decoration: underline;
    font-family: 'Arial', sans-serif;
    font-size: 16px;
    color: #555;
}

/* 选中状态的图标高亮 */
.checkbox-label input[type="checkbox"]:checked + span {
    color: #4361ee;
    background-color: #f0f4ff;
    border-radius: 4px;
    padding: 2px 4px;
}

/* 应用按钮样式 */
#apply-properties {
    width: 100%;
    padding: 12px;
    background-color: #4361ee;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 15px;
    margin-top: 20px;
    transition: all 0.2s ease;
    font-weight: 500;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

#apply-properties:hover {
    background-color: #3a56d4;
    transform: translateY(-1px);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#apply-properties:active {
    transform: translateY(0);
    box-shadow: none;
}

/* 图片字段容器 */
#image-field-container {
    margin-top: 15px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e1e5eb;
    text-align: center;
}

/* 浏览按钮样式 */
#browse-image-btn {
    display: inline-block;
    width: 45%;
    margin-right: 2%;
    margin-top: 10px;
}

/* 复制Base64按钮样式 */
#copy-base64-btn {
    display: inline-block;
    width: 45%;
    margin-left: 2%;
    margin-top: 10px;
    background-color: #4CAF50;
    color: white;
}

#copy-base64-btn:hover {
    background-color: #45a049;
}

/* 自定义字体容器 */
#custom-font-container {
    margin-top: 12px;
    padding: 12px;
    background-color: #f8f9fa;
    border-radius: 6px;
    border: 1px solid #e1e5eb;
}

/* 属性面板切换按钮 */
.properties-toggle {
    /* 删除固定定位相关样式 */
    position: relative;
    right: auto;
    top: auto;
    z-index: auto;
    background-color: #e63946; /* 红色背景 */
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
    transition: all 0.2s ease;
}

.properties-toggle:hover {
    background-color: #d62828; /* 深红色 */
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.properties-toggle .toggle-icon {
    font-size: 16px;
}

.properties-toggle .toggle-text {
    font-size: 14px;
    font-weight: 500;
}

/* 主内容区域样式 */
.container {
    position: relative;
    transition: padding-right 0.3s ease;
    padding-right: 320px; /* 属性面板宽度 */
}

/* 当属性面板隐藏时的样式 */
.properties-panel.hidden {
    transform: translateX(100%);
}

.container.expanded {
    padding-right: 0;
}

.main-content.expanded {
    margin-right: 0;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.2s ease;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 25px;
    border-radius: 8px;
    width: 60%;
    max-width: 600px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    animation: slideIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from { transform: translateY(-20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* 字段样式 */
.field {
    position: absolute;
    border: 1px solid #e9ecef;
    padding: 4px;
    cursor: move;
    min-width: 30px;
    min-height: 20px;
    background-color: rgba(255, 255, 255, 0.9);
    box-sizing: border-box;
    z-index: 10;
    user-select: none;
    overflow: visible;
    border-radius: 3px;
    transition: border 0.2s ease, background-color 0.2s ease;
}

.field.selected {
    border: 1px dashed #4361ee;
    background-color: rgba(67, 97, 238, 0.05);
    z-index: 11;
    box-shadow: 0 0 0 2px rgba(67, 97, 238, 0.2);
}

.field {
    position: absolute;
    border: 1px solid #ddd;
    padding: 2px;
    cursor: move;
    min-width: 30px;
    min-height: 20px;
    background-color: rgba(255, 255, 255, 0.8);
    box-sizing: border-box;
    z-index: 10;
    user-select: none;
    overflow: visible; /* 确保控制点可见 */
}

.field.selected {
    border: 1px dashed #4a90e2;
    background-color: rgba(74, 144, 226, 0.1);
    z-index: 11; /* 确保选中的字段在最上层 */
}

.field-label {
    position: absolute;
    top: -18px;
    left: 0;
    font-size: 10px;
    background-color: #4a90e2;
    color: white;
    padding: 2px 4px;
    border-radius: 2px;
    white-space: nowrap;
}

/* 对齐辅助线样式 */
.alignment-guide {
    position: absolute;
    background-color: #ff6b6b;
    z-index: 100;
    pointer-events: none;
}

.alignment-guide.vertical {
    width: 1px;
    top: 0;
}

.alignment-guide.horizontal {
    height: 1px;
    left: 0;
}

.modal {
    display: none;
    position: fixed;
    z-index: 999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    max-width: 600px;
    width: 90%;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    position: relative;
}

.modal h2 {
    margin-bottom: 20px;
    font-size: 24px;
}

/* 改进模板尺寸弹窗样式 */
#template-size-modal .modal-content {
    background-color: white;
    padding: 30px;
    border-radius: 8px;
    width: 400px;
    max-width: 90%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    border-top: 5px solid #4a90e2;
}

#template-size-modal h2 {
    margin-top: 0;
    margin-bottom: 25px;
    color: #333;
    font-size: 22px;
    text-align: center;
    padding-bottom: 15px;
    border-bottom: 1px solid #eee;
}

#template-size-modal .property-group {
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

#template-size-modal label {
    flex: 0 0 100px;
    font-weight: bold;
    color: #555;
    font-size: 15px;
}

#template-size-modal input[type="number"] {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: border-color 0.2s, box-shadow 0.2s;
}

#template-size-modal input[type="number"]:focus {
    border-color: #4a90e2;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1), 0 0 0 3px rgba(74, 144, 226, 0.1);
    outline: none;
}

#template-size-modal .size-unit {
    margin-left: 8px;
    color: #777;
    font-size: 14px;
}

#template-size-modal .button-group {
    display: flex;
    justify-content: flex-end;
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

#confirm-size {
    background-color: #4a90e2;
    color: white;
    border: none;
    border-radius: 4px;
    padding: 10px 20px;
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.2s;
}

#confirm-size:hover {
    background-color: #357abd;
}

#confirm-size:active {
    background-color: #2b6aa9;
}

#template-size-modal .close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 24px;
    color: #999;
    cursor: pointer;
    transition: color 0.2s;
}

#template-size-modal .close:hover {
    color: #555;
}

.close {
    position: absolute;
    right: 15px;
    top: 10px;
    font-size: 24px;
    font-weight: bold;
    cursor: pointer;
}

#data-input {
    width: 100%;
    height: 200px;
    padding: 10px;
    margin: 15px 0;
    border: 1px solid #ccc;
    border-radius: 4px;
    resize: vertical;
}

.import-options {
    margin: 15px 0;
}

.option-tabs {
    display: flex;
    border-bottom: 1px solid #ccc;
    margin-bottom: 15px;
}

.tab-button {
    padding: 10px 20px;
    background-color: #e9e9e9;
    border: 1px solid #ccc;
    border-bottom: none;
    border-radius: 4px 4px 0 0;
    margin-right: 5px;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

.tab-button.active {
    background-color: #4a90e2;
    color: white;
    border-color: #4a90e2;
}

.tab-content {
    padding: 20px;
    border: 1px solid #eee;
    border-radius: 0 0 8px 8px;
}

.hint {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

#file-input {
    width: 0.1px;
    height: 0.1px;
    opacity: 0;
    overflow: hidden;
    position: absolute;
    z-index: -1;
}

.custom-file-upload {
    display: inline-flex;
    align-items: center;
    padding: 10px 15px;
    background-color: #4a90e2;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 14px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.custom-file-upload:hover {
    background-color: #357abd;
}

.custom-file-upload:active {
    background-color: #2b6aa9;
}

.file-icon {
    margin-right: 8px;
    font-size: 16px;
}

.file-name {
    margin-left: 10px;
    color: #666;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
    display: inline-block;
    vertical-align: middle;
}

.error {
    color: #e74c3c;
    font-weight: bold;
}

#confirm-data {
    padding: 10px 20px;
    background-color: #4a90e2;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s;
    margin-top: 15px;
    float: right;
}

#confirm-data:hover {
    background-color: #357abd;
}

/* 复选框标签样式 */
.checkbox-label input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.checkbox-label span {
    font-size: 13px;
}

/* 字体家族下拉菜单增强 */
#field-font-family {
    padding-right: 25px;
    appearance: none;
    background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="6" fill="none"><path d="M0 0h12L6 6 0 0z" fill="%23555"/></svg>');
    background-repeat: no-repeat;
    background-position: right 10px center;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 调整大小的控制点 */
.resize-handle {
    position: absolute;
    width: 8px;
    height: 8px;
    background-color: #4a90e2;
    border: 1px solid white;
    border-radius: 50%;
    z-index: 15;
    display: none; /* 默认隐藏 */
    box-shadow: 0 0 3px rgba(0, 0, 0, 0.3);
}

.resize-handle:hover {
    background-color: #357abd;
    transform: scale(1.2);
    cursor: pointer;
}

.resize-handle.nw {
    top: -4px;
    left: -4px;
    cursor: nw-resize;
}

.resize-handle.ne {
    top: -4px;
    right: -4px;
    cursor: ne-resize;
}

.resize-handle.sw {
    bottom: -4px;
    left: -4px;
    cursor: sw-resize;
}

.resize-handle.se {
    bottom: -4px;
    right: -4px;
    cursor: se-resize;
}

.resize-handle.n {
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    cursor: n-resize;
}

.resize-handle.e {
    top: 50%;
    right: -4px;
    transform: translateY(-50%);
    cursor: e-resize;
}

.resize-handle.s {
    bottom: -4px;
    left: 50%;
    transform: translateX(-50%);
    cursor: s-resize;
}

.resize-handle.w {
    top: 50%;
    left: -4px;
    transform: translateY(-50%);
    cursor: w-resize;
}

/* 确保选中的字段显示调整大小控制点 */
.field.selected .resize-handle {
    display: block;
}

.field .resize-handle {
    display: none;
}

.small-btn {
    padding: 4px 8px;
    font-size: 12px;
    margin-top: 5px;
    background-color: #4a90e2;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}

.small-btn:hover {
    background-color: #357abd;
}

/* 图片字段样式 */
.field.image-field {
    padding: 0;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(240, 240, 240, 0.5);
}

.field.image-field img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.image-path-hint {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: rgba(0,0,0,0.5);
    color: white;
    padding: 2px 4px;
    font-size: 9px;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* 属性面板现代化设计 */
.properties-panel {
    background-color: #ffffff;
    border-left: 1px solid #e9ecef;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
}

.properties-section {
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.properties-section:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

/* 按钮图标 */
#import-template::before { content: '📁 '; font-size: 16px; }
#import-template-config::before { content: '⚙️ '; font-size: 16px; }
#add-field::before { content: '➕ '; font-size: 16px; }
#delete-field::before { content: '🗑️ '; font-size: 16px; }
#save-template::before { content: '💾 '; font-size: 16px; }
#zoom-in::before { content: '🔍 '; font-size: 16px; }
#zoom-out::before { content: '🔎 '; font-size: 16px; }
#import-data::before { content: '📊 '; font-size: 16px; }
#export-data::before { content: '📤 '; font-size: 16px; }
#print::before { content: '🖨️ '; font-size: 16px; }

/* 画布区域美化 - 纯色版本 */
.canvas {
    background-color: #ffffff;
    border: 2px dashed #bdc3c7;
    border-radius: 12px;
    box-shadow: 
        0 10px 40px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
}

.canvas:hover {
    border-color: #3498db;
    box-shadow: 
        0 15px 50px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.template-area {
    background-color: #ecf0f1;
    padding: 30px;
}

/* 响应式布局改进 */
@media (max-width: 1200px) {
    .container {
        padding-right: 280px;
    }
    .properties-panel {
        width: 280px;
    }
}

@media (max-width: 768px) {
    .toolbar {
        flex-direction: column;
        gap: 15px;
    }
    
    .tool-group {
        justify-content: center;
    }
    
    button {
        padding: 10px 16px;
        font-size: 13px;
    }
}

/* 页面加载动画 */
@keyframes slideInFromTop {
    0% {
        transform: translateY(-30px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInFromRight {
    0% {
        transform: translateX(50px);
        opacity: 0;
    }
    100% {
        transform: translateX(0);
        opacity: 1;
    }
}

header {
    animation: slideInFromTop 0.6s ease-out;
}

.properties-panel {
    animation: slideInFromRight 0.8s ease-out;
}

.toolbar {
    animation: slideInFromTop 0.6s ease-out 0.2s both;
}

/* 字段选中效果 */
.field.selected {
    border: 2px solid #3498db;
    background-color: rgba(52, 152, 219, 0.1);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.2);
}

/* 占位消息美化 */
.placeholder-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 30px 50px;
    background-color: rgba(255, 255, 255, 0.9);
    border: 2px dashed #3498db;
    border-radius: 12px;
    text-align: center;
    color: #2c3e50;
    font-size: 18px;
    font-weight: 500;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(5px);
    max-width: 80%;
    animation: pulse 2s infinite ease-in-out;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.placeholder-message::before {
    content: '📄';
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
}

@keyframes pulse {
    0% {
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
    50% {
        box-shadow: 0 15px 40px rgba(52, 152, 219, 0.2);
    }
    100% {
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    }
}

#field-image-select {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* 颜色选择器样式 */
input[type="color"] {
    width: 100%;
    height: 40px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    cursor: pointer;
}

/* 内联属性行 - 用于在一行显示多个属性组 */
.inline-property-row {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

/* 内联属性组 - 在一行内显示标签和输入框 */
.inline-property-group {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
}

.inline-property-group label {
    flex: 0 0 auto;
    margin-bottom: 0;
    white-space: nowrap;
    font-size: 13px;
}

.inline-property-group input,
.inline-property-group select {
    flex: 1;
    padding: 8px 12px;
    min-width: 0; /* 防止flex子项溢出 */
}

/* 紧凑型属性组 */
.compact-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.compact-group label {
    flex: 0 0 auto;
    margin-bottom: 0;
    white-space: nowrap;
}

/* 文件预览样式 */
.preview-area {
    margin-top: 15px;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    background-color: #f9f9f9;
    max-height: 400px;
    overflow-y: auto;
}

.preview-info {
    margin-bottom: 10px;
    font-size: 14px;
    color: #666;
}

.preview-table-container {
    overflow-x: auto;
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.preview-table th,
.preview-table td {
    border: 1px solid #ddd;
    padding: 6px 8px;
    text-align: left;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

.preview-table th {
    background-color: #f5f5f5;
    font-weight: bold;
    position: sticky;
    top: 0;
    z-index: 1;
}

.preview-table tr:nth-child(even) {
    background-color: #f9f9f9;
}

.preview-table tr:hover {
    background-color: #f0f0f0;
}

.preview-note {
    margin-top: 10px;
    font-size: 12px;
    color: #888;
    font-style: italic;
}

/* 图片预览单元格样式 */
.preview-table .image-cell {
    text-align: center;
    padding: 4px;
    vertical-align: middle;
}

.preview-image {
    border: 1px solid #ddd;
    border-radius: 3px;
    background-color: #f9f9f9;
    cursor: pointer;
    transition: transform 0.2s;
}

.preview-image:hover {
    transform: scale(1.1);
    z-index: 10;
    position: relative;
}

/* 调整表格单元格以适应图片 */
.preview-table td.image-cell {
    max-width: 100px;
    height: 70px;
}

.checkbox-style-btn {
    background: #F5F7FA;
    border: 2px solid #E2E8F0;
    color: #4F8CFF;
    transition: border 0.18s, background 0.18s;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 4px;
    width: 36px;
    height: 36px;
    box-sizing: border-box;
    padding: 0;
}

.checkbox-style-btn input[type="checkbox"] {
    display: none;
}

.checkbox-style-btn .icon-bold,
.checkbox-style-btn .icon-italic,
.checkbox-style-btn .icon-underline {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    font-size: 16px;
    color: #555;
    font-weight: 900;
    transition: color 0.2s;
    text-align: center;
}

.checkbox-style-btn input[type="checkbox"]:checked + .icon-bold,
.checkbox-style-btn input[type="checkbox"]:checked + .icon-italic,
.checkbox-style-btn input[type="checkbox"]:checked + .icon-underline {
    color: #4F8CFF;
}

.checkbox-style-btn:has(input[type='checkbox']:checked) {
    border-color: #4F8CFF;
    background: #EAF2FF;
}