/* ============================================
   截图排版工具 - 样式表
   ============================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #f5f5f5;
    color: #333;
    height: 100vh;
    overflow: hidden;
    font-size: 14px;
    line-height: 1.5;
}

/* ========== 主布局 ========== */
.app {
    display: flex;
    height: 100vh;
}

/* ========== 左侧面板 ========== */
.sidebar {
    width: 280px;
    background: #fff;
    border-right: 1px solid #e8e8e8;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    flex-shrink: 0;
}

.sidebar-header {
    padding: 10px 14px 6px;
    border-bottom: 1px solid #f0f0f0;
    flex-shrink: 0;
}

.sidebar-header .title {
    font-size: 14px;
    font-weight: 600;
    color: #1a1a1a;
}

.sidebar-header .subtitle {
    font-size: 11px;
    color: #999;
    margin-top: 1px;
}

.sidebar-content {
    padding: 10px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
}

/* ========== 上传区域 ========== */
.upload-area {
    border: 2px dashed #1677ff;
    border-radius: 8px;
    padding: 18px 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.25s ease;
    background: linear-gradient(135deg, #e6f4ff 0%, #f0f5ff 100%);
    margin-bottom: 10px;
    flex-shrink: 0;
    position: relative;
}

.upload-area:hover {
    border-color: #0958d9;
    background: linear-gradient(135deg, #bae0ff 0%, #e6f4ff 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.15);
}

.upload-area.drag-over {
    border-color: #52c41a;
    background: linear-gradient(135deg, #f6ffed 0%, #d9f7be 100%);
    box-shadow: 0 4px 16px rgba(82, 196, 26, 0.2);
}

.upload-icon {
    font-size: 28px;
    margin-bottom: 6px;
    display: block;
    opacity: 0.85;
}

.upload-text {
    font-size: 13px;
    color: #0958d9;
    font-weight: 500;
}

.upload-hint {
    font-size: 11px;
    color: #69b1ff;
    margin-top: 4px;
}

.upload-area input {
    display: none;
}

/* ========== 表单组 ========== */
.form-group {
    margin-bottom: 6px;
    flex-shrink: 0;
}

.form-label {
    display: block;
    font-size: 11px;
    color: #555;
    margin-bottom: 4px;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.form-value {
    color: #1677ff;
    font-weight: 500;
    font-size: 12px;
}

select {
    width: 100%;
    padding: 5px 10px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 12px;
    color: #333;
    background: #fff;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

select:focus {
    border-color: #1677ff;
}

select:hover {
    border-color: #bfbfbf;
}

/* ========== 每页张数选择 ========== */
.grid-options {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 4px;
}

.grid-option {
    padding: 4px 0;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    text-align: center;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    color: #555;
    background: #fff;
}

.grid-option:hover {
    border-color: #1677ff;
    color: #1677ff;
}

.grid-option.active {
    border-color: #1677ff;
    background: #1677ff;
    color: #fff;
}

/* ========== 分段控制器 ========== */
.seg-control {
    display: flex;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    overflow: hidden;
}

.seg-item {
    flex: 1;
    padding: 4px 0;
    text-align: center;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
    color: #555;
    background: #fff;
    border-right: 1px solid #d9d9d9;
}

.seg-item:last-child {
    border-right: none;
}

.seg-item:hover {
    color: #1677ff;
}

.seg-item.active {
    background: #1677ff;
    color: #fff;
}

/* ========== 滑块 ========== */
.form-slider {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    appearance: none;
    background: #e8e8e8;
    border-radius: 2px;
    outline: none;
    cursor: pointer;
}

.form-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #1677ff;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.form-slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

/* ========== 复选框 ========== */
.checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: #555;
    cursor: pointer;
}

.checkbox-item input {
    width: 13px;
    height: 13px;
    cursor: pointer;
    accent-color: #1677ff;
}

/* ========== 自定义纸张输入 ========== */
.custom-paper-group {
    margin-top: 4px;
}

.custom-paper-inputs {
    display: flex;
    align-items: center;
    gap: 8px;
}

.custom-input {
    width: 80px;
    padding: 6px 10px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 12px;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}

.custom-input:focus {
    border-color: #1677ff;
}

.custom-input:hover {
    border-color: #bfbfbf;
}

.custom-separator {
    color: #999;
    font-size: 14px;
    font-weight: 500;
}

/* ========== 按钮 ========== */
.action-buttons {
    margin-top: 8px;
    margin-bottom: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex-shrink: 0;
}

.btn {
    width: 100%;
    padding: 6px 12px;
    border: 1px solid #d9d9d9;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
    background: #fff;
    color: #333;
    text-align: center;
}

.btn:hover {
    border-color: #1677ff;
    color: #1677ff;
}

.btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.btn:disabled:hover {
    border-color: #d9d9d9;
    color: #333;
}

.btn-primary {
    background: #1677ff;
    border-color: #1677ff;
    color: #fff;
}

.btn-primary:hover {
    background: #4096ff;
    border-color: #4096ff;
    color: #fff;
}

.btn-outline {
    background: #fff;
    border-color: #d9d9d9;
    color: #333;
}

.btn-ghost {
    background: transparent;
    border-color: transparent;
    color: #999;
}

.btn-ghost:hover {
    background: #f5f5f5;
    border-color: transparent;
    color: #666;
}

/* ========== 图片列表 ========== */
.image-list-section {
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid #f0f0f0;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow: hidden;
}

.image-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    flex-shrink: 0;
}

.image-list-title {
    font-size: 11px;
    color: #1a1a1a;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.image-list-title::before {
    content: '';
    display: inline-block;
    width: 2px;
    height: 8px;
    background: #1677ff;
    border-radius: 1px;
}

.image-count {
    font-size: 10px;
    color: #1677ff;
    font-weight: 500;
    background: #e6f4ff;
    padding: 1px 6px;
    border-radius: 8px;
}

.image-grid {
    flex: 1;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 5px;
    padding: 2px;
    min-height: 0;
}

.image-grid::-webkit-scrollbar {
    width: 6px;
}

.image-grid::-webkit-scrollbar-track {
    background: #f5f5f5;
    border-radius: 3px;
}

.image-grid::-webkit-scrollbar-thumb {
    background: #d9d9d9;
    border-radius: 3px;
}

.image-grid::-webkit-scrollbar-thumb:hover {
    background: #bfbfbf;
}

.empty-list {
    grid-column: 1 / -1;
    padding: 16px 0;
    text-align: center;
    color: #bfbfbf;
    font-size: 11px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.empty-list::before {
    content: '📷';
    font-size: 18px;
    opacity: 0.5;
}

.thumb-item {
    position: relative;
    aspect-ratio: 9 / 16;
    border-radius: 4px;
    overflow: hidden;
    background: #fafafa;
    cursor: pointer;
    transition: all 0.2s ease;
    border: 2px solid transparent;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.thumb-item:hover {
    border-color: #1677ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(22, 119, 255, 0.2);
}

.thumb-item:hover .thumb-delete {
    opacity: 1;
    transform: scale(1);
}

.thumb-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.2s ease;
}

.thumb-item:hover .thumb-img {
    transform: scale(1.05);
}

.thumb-index {
    position: absolute;
    top: 6px;
    left: 6px;
    background: linear-gradient(135deg, #1677ff 0%, #4096ff 100%);
    color: #fff;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 7px;
    border-radius: 10px;
    line-height: 1.4;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.thumb-delete {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 20px;
    height: 20px;
    border: none;
    background: rgba(255, 77, 79, 0.9);
    color: #fff;
    border-radius: 50%;
    cursor: pointer;
    font-size: 14px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease;
    z-index: 2;
    box-shadow: 0 2px 6px rgba(255, 77, 79, 0.3);
}

.thumb-delete:hover {
    background: #ff4d4f;
    transform: scale(1.1);
}

/* ========== 拖拽排序样式 ========== */
.thumb-item.dragging {
    opacity: 0.5;
    transform: scale(0.95);
    border-color: #1677ff;
    box-shadow: 0 4px 20px rgba(22, 119, 255, 0.3);
}

.thumb-item.drag-over {
    border-color: #52c41a;
    background: #f6ffed;
    transform: scale(1.05);
    box-shadow: 0 4px 20px rgba(82, 196, 26, 0.3);
}

.thumb-item[draggable="true"] {
    cursor: grab;
}

.thumb-item[draggable="true"]:active {
    cursor: grabbing;
}

/* ========== 右侧预览区 ========== */
.preview-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: #f5f5f5;
}

.preview-toolbar {
    padding: 10px 20px;
    background: #fff;
    border-bottom: 1px solid #e8e8e8;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.toolbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.stats-text {
    font-size: 13px;
    color: #888;
}

.toolbar-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toolbar-guide-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 5px 12px;
    background: linear-gradient(135deg, #e6f4ff 0%, #bae0ff 100%);
    border: 1px solid #91caff;
    color: #0958d9;
    font-size: 12px;
    font-weight: 500;
    border-radius: 14px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.toolbar-guide-btn:hover {
    background: linear-gradient(135deg, #bae0ff 0%, #91caff 100%);
    border-color: #69b1ff;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(22, 119, 255, 0.2);
}

.toolbar-guide-btn .guide-icon {
    font-size: 12px;
}

.zoom-control {
    display: flex;
    align-items: center;
    gap: 4px;
}

.zoom-btn {
    width: 26px;
    height: 26px;
    border: 1px solid #e8e8e8;
    background: #fff;
    border-radius: 3px;
    cursor: pointer;
    font-size: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #666;
    line-height: 1;
}

.zoom-btn:hover {
    border-color: #1677ff;
    color: #1677ff;
}

.zoom-text {
    font-size: 12px;
    color: #888;
    min-width: 44px;
    text-align: center;
}

/* ========== 右侧底部信息栏 ========== */
.preview-footer {
    padding: 8px 20px;
    background: #fff;
    border-top: 1px solid #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    font-size: 12px;
    color: #999;
}

.footer-stats {
    display: flex;
    align-items: center;
    gap: 4px;
}

.footer-icon {
    font-size: 12px;
    opacity: 0.7;
}

.footer-stats #busuanzi_value_site_pv {
    color: #1677ff;
    font-weight: 500;
}

.footer-divider {
    width: 1px;
    height: 12px;
    background: #e8e8e8;
}

.footer-copyright {
    display: flex;
    align-items: center;
    gap: 4px;
}

.developer-name {
    color: #1677ff;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
}

.developer-name:hover {
    text-decoration: underline;
}

.preview-container {
    flex: 1;
    overflow: auto;
    padding: 24px;
    display: flex;
    justify-content: center;
    min-height: 0; /* 确保flex子元素可以正确收缩 */
}

.pages-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ========== 页面预览 ========== */
.page-preview {
    background: #fff;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
    position: relative;
    flex-shrink: 0;
}

.page-a5-landscape {
    width: 794px;
    height: 559px;
}

.page-a5-portrait {
    width: 559px;
    height: 794px;
}

.page-a4-landscape {
    width: 1123px;
    height: 794px;
}

.page-a4-portrait {
    width: 794px;
    height: 1123px;
}

.page-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.page-image {
    position: absolute;
    object-fit: contain;
}

.page-label {
    position: absolute;
    font-size: 10px;
    color: #999;
    text-align: center;
    transform: translateX(-50%);
}

.page-number {
    position: absolute;
    bottom: 6px;
    right: 10px;
    font-size: 10px;
    color: #ccc;
}

/* ========== 空状态 ========== */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #bbb;
    padding: 40px;
    text-align: center;
}

.empty-icon {
    font-size: 48px;
    opacity: 0.6;
    margin-bottom: 16px;
}

.empty-title {
    font-size: 18px;
    font-weight: 600;
    color: #1a1a1a;
    margin-bottom: 8px;
}

.empty-desc {
    font-size: 14px;
    color: #888;
    margin-bottom: 24px;
}

.empty-steps {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.empty-step {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: #555;
}

.step-num {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, #1677ff 0%, #4096ff 100%);
    color: #fff;
    font-size: 12px;
    font-weight: 600;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-text {
    color: #555;
}

.empty-tip {
    font-size: 13px;
    color: #1677ff;
    background: #e6f4ff;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid #91caff;
}

.empty-text {
    font-size: 13px;
}

/* ========== 进度条 ========== */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: #f0f0f0;
    z-index: 1000;
    display: none;
}

.progress-bar-fill {
    height: 100%;
    background: #1677ff;
    width: 0%;
    transition: width 0.3s;
}

.progress-bar.show {
    display: block;
}

/* ========== 提示信息 ========== */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 13px;
    z-index: 2000;
    opacity: 0;
    transition: opacity 0.2s, transform 0.2s;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast-success {
    background: #fff;
    color: #52c41a;
    border: 1px solid #b7eb8f;
}

.toast-error {
    background: #fff;
    color: #ff4d4f;
    border: 1px solid #ffa39e;
}

.toast-info {
    background: #fff;
    color: #1677ff;
    border: 1px solid #91caff;
}

/* ========== 模态框 ========== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-mask {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.45);
}

.modal-content {
    position: relative;
    background: #fff;
    border-radius: 6px;
    width: 420px;
    max-width: 90vw;
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
    animation: modalIn 0.2s ease-out;
}

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

.modal-title {
    padding: 14px 20px;
    font-size: 15px;
    font-weight: 600;
    color: #1a1a1a;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    color: #999;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
}

.modal-close:hover {
    background: #f5f5f5;
    color: #666;
}

.modal-body {
    padding: 20px;
    font-size: 13px;
    color: #555;
    line-height: 1.6;
}

.modal-body p {
    margin-bottom: 8px;
}

.modal-body .info-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    border-bottom: 1px dashed #f0f0f0;
}

.modal-body .info-row:last-child {
    border-bottom: none;
}

.modal-body .info-label {
    color: #888;
}

.modal-body .info-value {
    color: #333;
    font-weight: 500;
}

/* 指南样式 */
.guide-content {
    max-height: 60vh;
    overflow-y: auto;
    padding-right: 10px;
}

.guide-section {
    margin-bottom: 20px;
}

.guide-section:last-child {
    margin-bottom: 0;
}

.guide-section h3 {
    font-size: 14px;
    color: #1a1a1a;
    margin-bottom: 10px;
    padding-left: 8px;
    border-left: 3px solid #1677ff;
}

.guide-section p {
    font-size: 13px;
    color: #555;
    margin-bottom: 6px;
    line-height: 1.6;
}

.guide-steps {
    counter-reset: step;
}

.guide-step {
    position: relative;
    padding-left: 28px;
    margin-bottom: 10px;
    font-size: 13px;
    color: #555;
    line-height: 1.6;
}

.guide-step::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 20px;
    height: 20px;
    background: #1677ff;
    color: #fff;
    border-radius: 50%;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.guide-tip {
    background: #e6f4ff;
    border: 1px solid #91caff;
    border-radius: 4px;
    padding: 10px 12px;
    font-size: 12px;
    color: #0958d9;
    line-height: 1.6;
}

.guide-tip strong {
    color: #0958d9;
}

.modal-footer {
    padding: 12px 20px;
    border-top: 1px solid #f0f0f0;
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.modal-footer .btn {
    width: auto;
    min-width: 70px;
    padding: 6px 16px;
}

/* ========== 图片查看器 ========== */
.image-viewer {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 4000;
    display: none;
    align-items: center;
    justify-content: center;
}

.image-viewer.show {
    display: flex;
}

.viewer-mask {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.75);
}

.viewer-content {
    position: relative;
    background: #1a1a1a;
    border-radius: 8px;
    width: 90vw;
    max-width: 900px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    animation: viewerIn 0.2s ease-out;
}

@keyframes viewerIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.viewer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    border-bottom: 1px solid #333;
    flex-shrink: 0;
}

.viewer-title {
    color: #fff;
    font-size: 14px;
    font-weight: 500;
    max-width: 50%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.viewer-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.viewer-btn {
    width: 32px;
    height: 32px;
    border: 1px solid #444;
    background: #2a2a2a;
    color: #fff;
    border-radius: 6px;
    cursor: pointer;
    font-size: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    line-height: 1;
}

.viewer-btn:hover {
    background: #3a3a3a;
    border-color: #555;
}

.viewer-btn.viewer-close {
    font-size: 20px;
}

.viewer-btn.viewer-close:hover {
    background: #ff4d4f;
    border-color: #ff4d4f;
}

.viewer-counter {
    color: #999;
    font-size: 13px;
    min-width: 50px;
    text-align: center;
}

.viewer-body {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: auto;
    padding: 20px;
    min-height: 200px;
}

.viewer-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: 4px;
    user-select: none;
}

.viewer-footer {
    padding: 10px 20px;
    border-top: 1px solid #333;
    flex-shrink: 0;
    text-align: center;
}

.viewer-info {
    color: #888;
    font-size: 12px;
}

/* ========== 移动端适配 ========== */
@media screen and (max-width: 768px) {
    body {
        font-size: 14px;
        overflow: auto;
    }
    
    .app {
        flex-direction: column;
        height: 100vh;
        min-height: 100vh;
        overflow: hidden;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e8e8e8;
        flex-shrink: 0;
        overflow-y: auto;
        max-height: 50vh;
    }
    
    .sidebar-content {
        padding: 12px;
        overflow: visible;
        min-height: auto;
    }
    
    .upload-area {
        padding: 16px;
        margin-bottom: 12px;
    }
    
    .upload-icon {
        font-size: 32px;
    }
    
    .form-group {
        margin-bottom: 10px;
    }
    
    .grid-options {
        gap: 6px;
    }
    
    .grid-option {
        padding: 8px 0;
    }
    
    .action-buttons {
        margin-top: 15px;
        gap: 8px;
    }
    
    .btn {
        padding: 10px 16px;
    }
    
    .image-list-section {
        margin-top: 15px;
        padding-top: 15px;
        max-height: 200px;
        overflow-y: auto;
    }
    
    .image-grid {
        gap: 8px;
    }
    
    .preview-area {
        width: 100%;
        min-height: 0;
        flex: 1;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }
    
    .preview-toolbar {
        padding: 10px 12px;
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .toolbar-left {
        flex: 1;
        min-width: 100%;
        order: 1;
    }
    
    .toolbar-right {
        width: 100%;
        justify-content: space-between;
        order: 2;
    }
    
    .toolbar-guide-btn {
        padding: 6px 10px;
        font-size: 12px;
    }
    
    .preview-container {
        padding: 10px;
        overflow: auto;
        flex: 1;
        min-height: 0;
    }
    
    .preview-footer {
        padding: 6px 12px;
        font-size: 11px;
        gap: 12px;
    }
    
    .footer-divider {
        height: 10px;
    }
    
    .pages-wrapper {
        align-items: flex-start;
    }
    
    .page-preview {
        transform: scale(0.6);
        transform-origin: top center;
        margin-bottom: 20px;
    }
    
    .empty-state {
        padding: 30px 20px;
    }
    
    .empty-icon {
        font-size: 36px;
    }
    
    .empty-title {
        font-size: 16px;
    }
    
    .empty-desc {
        font-size: 13px;
    }
    
    .empty-steps {
        gap: 10px;
    }
    
    .empty-step {
        font-size: 13px;
    }
    
    .step-num {
        width: 22px;
        height: 22px;
        font-size: 11px;
    }
    
    .empty-tip {
        font-size: 12px;
        padding: 6px 12px;
    }
    
    /* 图片查看器 */
    .viewer-content {
        width: 95vw;
        max-height: 85vh;
    }
    
    .viewer-header {
        padding: 10px 15px;
    }
    
    .viewer-title {
        font-size: 13px;
        max-width: 40%;
    }
    
    .viewer-btn {
        width: 28px;
        height: 28px;
        font-size: 16px;
    }
    
    .viewer-image {
        max-height: 60vh;
    }
    
    /* 弹窗 */
    .modal-content {
        width: 95vw;
        max-height: 90vh;
        margin: 5vh auto;
    }
    
    .modal-title {
        padding: 12px 15px;
    }
    
    .modal-body {
        padding: 15px;
        max-height: 60vh;
        overflow-y: auto;
    }
    
    .modal-footer {
        padding: 10px 15px;
        flex-direction: column;
        gap: 8px;
    }
    
    .modal-footer .btn {
        width: 100%;
    }
}

/* ========== 打印样式 ========== */
@media print {
    html, body {
        margin: 0;
        padding: 0;
        background: #fff;
        width: 100%;
        height: 100%;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }

    .app {
        display: block;
        height: auto;
    }

    .sidebar,
    .preview-toolbar,
    .progress-bar,
    .toast,
    .modal {
        display: none !important;
    }

    .preview-area {
        width: 100%;
        overflow: visible;
    }

    .preview-container {
        overflow: visible;
        padding: 0;
        width: 100%;
        display: block;
    }

    .pages-wrapper {
        gap: 0;
        width: 100%;
        display: block;
    }

    .page-preview {
        box-shadow: none;
        page-break-after: always;
        page-break-inside: avoid;
        margin: 0;
        padding: 0;
        transform: none !important;
        position: relative;
    }

    .page-preview:last-child {
        page-break-after: auto;
    }

    .page-print {
        width: 100%;
        height: auto;
    }

    .page-content {
        position: relative;
        width: 100%;
        height: 100%;
    }

    .page-image {
        position: absolute;
        object-fit: contain;
    }

    .page-label {
        position: absolute;
        font-size: 8pt;
        color: #999;
        text-align: center;
        transform: translateX(-50%);
    }
}

/* ========== 打印设置提示 ========== */
.print-tips {
    padding: 10px;
}

.print-tip-icon {
    font-size: 32px;
    text-align: center;
    margin-bottom: 10px;
}

.print-tip-title {
    font-size: 16px;
    font-weight: 600;
    color: #1a1a1a;
    text-align: center;
    margin-bottom: 12px;
}

.print-tip-content {
    font-size: 14px;
    color: #555;
}

.print-tip-content p {
    margin-bottom: 10px;
}

.print-tip-list {
    list-style: none;
    padding: 0;
    margin: 0 0 15px 0;
}

.print-tip-list li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

.print-tip-list li:last-child {
    border-bottom: none;
}

.tip-highlight {
    color: #1677ff;
    font-weight: 600;
    background: #e6f4ff;
    padding: 1px 4px;
    border-radius: 3px;
}

.print-tip-note {
    font-size: 13px;
    color: #888;
    background: #fafafa;
    padding: 10px;
    border-radius: 6px;
    margin-top: 10px;
}

    .page-number {
        display: none;
    }
}