/* 全局样式 */
body {
    margin: 0;
    padding: 0;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background-color: #f2f2f2;
}

/* 头部样式 */
.layui-header {
    background-color: #1E9FFF;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 60px;
    line-height: 60px;
}

.layui-logo {
    float: left;
    color: #fff;
    font-size: 18px;
    font-weight: bold;
    padding: 0 20px;
}

.layui-nav {
    background: transparent;
}

.layui-nav .layui-nav-item a {
    color: rgba(255, 255, 255, 0.8);
}

.layui-nav .layui-this a {
    color: #fff !important;
}

/* 主体内容区域 */
.layui-body {
    position: absolute;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: auto;
    background-color: #f2f2f2;
}

.mode-container {
    padding: 0;
    min-height: 100%;
    overflow-x: hidden;
}

/* 编辑器模式样式 */
.editor-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.layui-card {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.layui-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.quick-tools button,
.result-tools button {
    margin-left: 5px;
}

#latex-input {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    resize: vertical;
}

.latex-output-container {
    min-height: 200px;
    padding: 20px;
    background: white;
    border: 1px solid #e6e6e6;
    border-radius: 2px;
    overflow: auto;
}

#font-size-display {
    display: inline-block;
    margin: 0 10px;
    font-weight: bold;
    color: #1E9FFF;
}

/* 多窗口模式样式 */
.mobile-warning {
    display: none;
    padding: 20px;
}

.window-mode-content {
    display: block;
}

.window-toolbar {
    position: sticky;
    top: 0;
    background: white;
    padding: 10px 15px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    z-index: 100;
    margin-bottom: 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.toolbar-left,
.toolbar-right {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.window-toolbar button {
    margin: 0 !important;
}

#temp-preview-btn.active {
    background-color: #1E9FFF;
    color: white;
}

#temp-preview-btn.active:hover {
    background-color: #0C85E8;
}

.windows-container {
    position: relative;
    min-height: calc(100vh - 130px);
    background: #e8e8e8;
    overflow: hidden;
}

.latex-window {
    position: absolute;
    background: white;
    border: 2px solid #d2d2d2;
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    min-width: 300px;
    min-height: 200px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.latex-window.active {
    border-color: #1E9FFF;
    box-shadow: 0 6px 16px rgba(30, 159, 255, 0.3);
    z-index: 1000 !important;
}

.window-header {
    background: linear-gradient(to bottom, #f8f8f8, #e8e8e8);
    padding: 8px 12px;
    cursor: move;
    user-select: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #d2d2d2;
}

.window-header.dragging {
    cursor: grabbing;
}

.window-title {
    font-weight: bold;
    color: #333;
    flex: 1;
}

.window-title input {
    border: none;
    background: transparent;
    font-weight: bold;
    color: #333;
    width: 100%;
    outline: none;
}

.window-controls button {
    margin-left: 5px;
}

.window-content {
    display: flex;
    flex-direction: column;
    height: calc(100% - 38px);
}

.window-tabs {
    display: flex;
    background: #f5f5f5;
    border-bottom: 1px solid #d2d2d2;
}

.window-tab {
    padding: 8px 16px;
    cursor: pointer;
    border-right: 1px solid #d2d2d2;
    user-select: none;
}

.window-tab.active {
    background: white;
    color: #1E9FFF;
    font-weight: bold;
}

.window-tab-content {
    flex: 1;
    padding: 10px;
    overflow: auto;
    position: relative;
}

.window-editor {
    width: 100%;
    height: 100%;
    border: none;
    resize: none;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 14px;
    padding: 10px;
    box-sizing: border-box;
}

.window-preview {
    width: 100%;
    height: 100%;
}

.window-resize-handle {
    position: absolute;
    right: 0;
    bottom: 0;
    width: 20px;
    height: 20px;
    cursor: nwse-resize;
    background: linear-gradient(135deg, transparent 50%, #1E9FFF 50%);
}

/* 网站引入模式样式 */
#quote-mode {
    padding: 20px;
}

.quote-help {
    padding: 0;
}

.help-header {
    text-align: center;
    padding: 40px 20px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-radius: 5px 5px 0 0;
    margin: -20px -15px 0 -15px;
}

.help-header i {
    display: block;
    margin-bottom: 15px;
}

.help-header h2 {
    margin: 0 0 10px 0;
    font-size: 28px;
    font-weight: 600;
}

.help-desc {
    margin: 0;
    font-size: 14px;
    opacity: 0.95;
}

.help-section {
    margin: 30px 0;
    padding: 0 20px;
}

.help-section h3 {
    color: #1E9FFF;
    font-size: 20px;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e6e6e6;
}

.help-section h3 i {
    margin-right: 8px;
}

.help-section h4 {
    color: #333;
    font-size: 16px;
    margin: 25px 0 15px 0;
    font-weight: 600;
}

.help-section .layui-table code {
    background: #f5f5f5;
    padding: 2px 8px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    color: #e83e8c;
    font-size: 13px;
}

.example-group {
    margin-bottom: 30px;
    padding: 0 20px;
}

.example-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 4px solid #1E9FFF;
}

.example-label {
    min-width: 140px;
    font-weight: 500;
    color: #333;
}

.example-url {
    flex: 1;
}

.example-url input {
    font-size: 12px;
    font-family: 'Consolas', 'Monaco', monospace;
    background: white;
}

.example-item button {
    min-width: 80px;
}

.quote-help .layui-form {
    margin: 20px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 6px;
}

.quote-help .layui-form-item {
    display: flex;
    align-items: flex-start;
}

.quote-help .layui-form-label {
    font-weight: 500;
    width: 100px !important;
    padding: 9px 15px !important;
    float: none !important;
    display: inline-block !important;
    text-align: right !important;
    flex-shrink: 0;
}

.quote-help .layui-input-block {
    margin-left: 0 !important;
    flex: 1;
    display: inline-block !important;
}

.quote-help .layui-input-block .layui-textarea,
.quote-help .layui-input-block .layui-input {
    width: 100% !important;
    box-sizing: border-box;
}

#encode-input {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
}

#encode-output {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    background: #f5f5f5;
}

.encode-buttons {
    text-align: right;
}

.encode-buttons button {
    margin-left: 8px;
}

/* 按钮组容器的特殊处理 - 在桌面端也让它占满宽度 */
.quote-help .layui-form-item .encode-buttons {
    margin-left: 0 !important;
    text-align: right;
}

#local-file-input {
    display: none;
}

/* 文档转换模式样式 */
#converter-mode {
    padding: 20px;
}

#converter-mode .layui-card {
    margin-bottom: 0;
}

#converter-mode .layui-card-header h2 {
    font-size: 24px;
    color: #333;
}

#converter-mode .layui-form {
    margin-top: 20px;
}

#converter-mode .layui-form-item {
    display: flex;
    align-items: flex-start;
}

/* 下拉框选项不使用 flex 布局 */
#converter-mode .layui-form-select dl dd,
#converter-mode .layui-form-select dl dt {
    display: block !important;
}

#converter-mode .layui-form-label {
    width: 100px !important;
    padding: 9px 15px !important;
    float: none !important;
    display: inline-block !important;
    text-align: right !important;
    flex-shrink: 0;
}

#converter-mode .layui-input-block {
    margin-left: 0 !important;
    flex: 1;
    display: inline-block !important;
}

/* 确保 textarea 和 input 占满容器宽度 */
#converter-mode .layui-input-block .layui-textarea,
#converter-mode .layui-input-block .layui-input,
#converter-mode .layui-input-block select {
    width: 100% !important;
    box-sizing: border-box;
}

#converter-mode textarea {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    line-height: 1.6;
}

.converter-help {
    background: #f8f9fa;
    border-left: 4px solid #1E9FFF;
}

.converter-help h3 {
    color: #1E9FFF;
    font-size: 18px;
}

.converter-help ul {
    margin: 10px 0;
    padding-left: 20px;
}

.converter-help li {
    margin: 8px 0;
}

.converter-help code {
    background: #fff;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    color: #e83e8c;
    border: 1px solid #e6e6e6;
}

/* 参考表模式样式 */
#reference-mode {
    padding: 20px;
}

#reference-mode .layui-card {
    margin-bottom: 0;
}

#reference-mode .layui-card-header h2 {
    font-size: 24px;
    color: #333;
}

#reference-mode .layui-table {
    margin-top: 0;
}

#reference-mode .layui-table code {
    background: #f5f5f5;
    padding: 2px 6px;
    border-radius: 3px;
    font-family: 'Consolas', 'Monaco', monospace;
    color: #e83e8c;
    font-size: 13px;
}

#reference-mode .layui-table pre {
    margin: 0;
    font-size: 12px;
    line-height: 1.6;
}

#reference-mode .layui-colla-title {
    font-size: 16px;
    font-weight: bold;
    background: #f8f8f8;
}

#reference-mode .layui-table td,
#reference-mode .layui-table th {
    padding: 12px 15px;
}

.quote-display {
    padding: 20px;
    background: white;
    border: 1px solid #e6e6e6;
    border-radius: 4px;
    min-height: 200px;
}

/* UI 隐藏模式 */
body.ui-hidden .layui-header,
body.ui-hidden .mobile-header,
body.ui-hidden .mobile-tabbar,
body.ui-hidden .window-toolbar,
body.ui-hidden .quote-help,
body.ui-hidden .layui-container,
body.ui-hidden .layui-card {
    display: none !important;
}

body.ui-hidden .layui-body {
    top: 0;
    bottom: 0;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

body.ui-hidden #quote-mode {
    padding: 0;
    background: transparent;
    position: absolute;
    width: 100%;
    height: 100%;
}

body.ui-hidden .quote-display {
    border: none;
    padding: 0;
    min-height: auto;
    background: transparent;
    width: 100%;
    height: auto;
}

body.ui-hidden {
    background: transparent;
    margin: 0;
    padding: 0;
}

/* 对齐方式 */
.align-left {
    text-align: left;
}

.align-center {
    text-align: center;
}

.align-right {
    text-align: right;
}

/* 手机版底部 TabBar 导航 */
.mobile-tabbar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: white;
    border-top: 1px solid #e6e6e6;
    justify-content: space-around;
    padding: 0;
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.1);
    height: 55px;
    align-items: center;
}

.mobile-tab-btn {
    flex: 1;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    color: #999;
    font-size: 9px;
    transition: color 0.2s;
    height: 100%;
    line-height: 1;
}

.mobile-tab-btn i {
    font-size: 18px;
    line-height: 1;
}

.mobile-tab-btn span {
    line-height: 1;
    display: block;
}

.mobile-tab-btn.active {
    color: #1E9FFF;
}

.mobile-tab-btn.active i {
    color: #1E9FFF;
}

/* 响应式设计 */
@media screen and (max-width: 768px) {
    .layui-container {
        padding: 0px 5px;
    }

    /* 隐藏PC版导航 */
    #app-header {
        display: none;
    }
    
    /* 显示手机版 TabBar */
    .mobile-tabbar {
        display: flex;
    }
    
    /* 调整body距离，为底部 TabBar 留出空间 */
    .layui-body {
        top: 0;
        bottom: 60px;
        overflow-y: auto;
        padding-bottom: 0;
    }
    
    .layui-logo {
        font-size: 16px;
        padding: 0 10px;
    }
    
    /* 手机版按钮样式 */
    .layui-btn {
        font-size: 12px !important;
        padding: 6px 10px !important;
        height: auto !important;
        line-height: 1.2 !important;
    }
    
    .layui-btn-xs {
        font-size: 11px !important;
        padding: 4px 8px !important;
    }
    
    .quick-tools {
        margin-top: 10px;
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .quick-tools button {
        flex: 1;
        min-width: 60px;
        margin: 0 !important;
        font-size: 12px !important;
        padding: 6px 8px !important;
    }
    
    .result-tools {
        margin-top: 10px;
        display: flex;
        flex-wrap: wrap;
        gap: 5px;
        justify-content: center;
        width: 100%;
    }
    
    .result-tools button {
        flex: 0 1 auto;
        min-width: auto;
        margin: 0 !important;
        font-size: 12px !important;
        padding: 6px 12px !important;
        white-space: nowrap;
    }
    
    /* 缩放控制和显示放在第一行 */
    .result-tools #zoom-out,
    .result-tools #zoom-in,
    .result-tools #font-size-display {
        order: 1;
    }
    
    /* 保存按钮放在第二行 */
    .result-tools #save-image,
    .result-tools #save-tex {
        order: 2;
        flex: 1 1 45%;
        max-width: 48%;
    }
    
    #font-size-display {
        order: 1;
        padding: 0 8px;
    }
    
    .editor-container {
        padding: 10px;
        max-width: 100%;
    }
    
    .layui-card {
        margin-bottom: 10px;
    }
    
    .layui-card-header {
        flex-direction: column;
        align-items: center;
        gap: 10px;
        padding: 12px;
    }
    
    .layui-card-header span {
        font-size: 16px;
    }
    
    .layui-card-body {
        padding: 12px;
    }
    
    #latex-input {
        font-size: 16px;
        min-height: 150px;
    }
    
    .latex-output-container {
        min-height: 150px;
        padding: 15px;
        font-size: 16px;
    }
    
    #font-size-display {
        padding: 0 8px;
    }
    
    .window-toolbar {
        padding: 10px;
        flex-direction: column;
        gap: 5px;
    }
    
    .toolbar-left,
    .toolbar-right {
        width: 100%;
        gap: 5px;
    }
    
    .toolbar-left button,
    .toolbar-right button {
        flex: 1;
        margin: 0 !important;
        padding: 8px 4px !important;
        font-size: 12px !important;
        height: 32px;
    }
    
    .latex-window {
        min-width: 200px;
        font-size: 12px;
    }
    
    .window-toolbar {
        padding: 10px;
    }
    
    /* 参考表模式适配 */
    #reference-mode {
        padding: 10px;
    }
    
    #reference-mode .layui-card {
        margin-bottom: 0;
    }
    
    #reference-mode .layui-card-body {
        overflow-x: auto;
    }
    
    #reference-mode .layui-card-header h2 {
        font-size: 18px;
    }
    
    #reference-mode .layui-colla-title {
        font-size: 14px;
        padding: 10px 12px;
        padding-left: 30px;
        position: relative;
    }
    
    #reference-mode .layui-table {
        font-size: 12px;
        overflow-x: auto;
        display: block;
    }
    
    #reference-mode .layui-table td,
    #reference-mode .layui-table th {
        padding: 8px 10px;
        overflow: hidden;
        text-overflow: ellipsis;
        word-break: break-word;
    }
    
    #reference-mode .layui-table code {
        font-size: 11px;
        word-break: break-word;
    }
    
    /* 在线预览模式适配 */
    #quote-mode {
        padding: 10px;
    }
    
    .help-header {
        padding: 20px 15px;
        margin: -10px -10px 0 -10px;
        border-radius: 0;
    }
    
    .help-header i {
        font-size: 36px !important;
        margin-bottom: 10px;
    }
    
    .help-header h2 {
        font-size: 20px;
    }
    
    .help-desc {
        font-size: 13px;
    }
    
    .help-section {
        margin: 15px 0;
        padding: 0 10px;
        overflow-x: auto;
    }
    
    .help-section h3 {
        font-size: 16px;
        margin-bottom: 10px;
    }
    
    .help-section h4 {
        font-size: 14px;
        margin: 15px 0 10px 0;
    }
    
    .help-section .layui-table {
        font-size: 12px;
        overflow-x: auto;
        display: block;
    }
    
    .help-section .layui-table code {
        font-size: 11px;
        word-break: break-word;
    }
    
    .help-section .layui-table td,
    .help-section .layui-table th {
        padding: 8px 10px;
        overflow: hidden;
        text-overflow: ellipsis;
        word-break: break-word;
    }
    
    .example-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        padding: 12px;
        margin-bottom: 12px;
    }
    
    .example-label {
        min-width: auto;
        width: 100%;
    }
    
    .example-url {
        width: 100%;
    }
    
    .example-url input {
        font-size: 11px;
    }
    
    .example-item button {
        width: 100%;
        margin-top: 8px;
    }
    
    .quote-help .layui-form {
        margin: 10px 0;
        padding: 12px;
        border-radius: 4px;
    }
    
    .quote-help .layui-form-item {
        display: block !important;
        margin-bottom: 12px;
    }
    
    .quote-help .layui-form-label {
        width: auto !important;
        display: block !important;
        margin-bottom: 8px;
        text-align: left !important;
        padding: 9px 0 !important;
    }
    
    .quote-help .layui-input-block {
        margin-left: 0 !important;
        display: block !important;
    }
    
    #encode-input,
    #encode-output {
        font-size: 12px;
    }
    
    .quote-help .encode-buttons {
        display: flex !important;
        flex-direction: column;
        gap: 8px;
        text-align: left !important;
        margin-left: 0 !important;
    }
    
    .quote-help .encode-buttons button {
        width: 100% !important;
        margin: 0 !important;
        display: block !important;
    }
    
    #local-file-input {
        display: none;
    }
    
    .quote-display {
        font-size: 14px;
    }
    
    /* 文档转换模式适配 */
    #converter-mode {
        padding: 10px;
    }
    
    #converter-mode .layui-card {
        margin-bottom: 0;
    }
    
    #converter-mode .layui-card-header h2 {
        font-size: 16px;
        line-height: 1.4;
    }
    
    #converter-mode .layui-card-header h2 small {
        display: block;
        margin-top: 5px;
        font-size: 12px;
    }
    
    #converter-mode .layui-form-item {
        display: flex;
        align-items: flex-start;
        margin-bottom: 15px;
    }
    
    /* 下拉框选项不使用 flex 布局 */
    #converter-mode .layui-form-select dl dd,
    #converter-mode .layui-form-select dl dt {
        display: block !important;
    }
    
    #converter-mode .layui-form-label {
        width: 70px !important;
        padding: 9px 8px !important;
        float: none !important;
        display: inline-block !important;
        text-align: right !important;
        flex-shrink: 0;
        font-size: 13px;
    }
    
    /* 编译模式单选框组优化 */
    #converter-mode .layui-form-item .layui-input-block [name="compile-mode"] {
        margin: 8px 12px 8px 0;
    }
    
    #converter-mode .layui-form-item .layui-input-block [name="compile-mode"] + * {
        margin-right: 15px;
    }
    
    #converter-mode .layui-input-block {
        margin-left: 0 !important;
        flex: 1;
        display: inline-block !important;
    }
    
    /* 确保 textarea 和 input 占满容器宽度 */
    #converter-mode .layui-input-block .layui-textarea,
    #converter-mode .layui-input-block .layui-input,
    #converter-mode .layui-input-block select {
        width: 100% !important;
        box-sizing: border-box;
        font-size: 13px;
    }
    
    #converter-mode textarea {
        font-size: 12px;
        min-height: 180px;
    }
    
    #converter-mode .layui-btn-lg {
        width: 100%;
        margin-bottom: 10px;
        padding: 12px 15px !important;
        font-size: 14px !important;
        height: auto !important;
        line-height: 1.4 !important;
    }
    
    /* 按钮组容器 */
    #converter-mode .layui-form-item:last-of-type .layui-input-block {
        display: flex;
        flex-direction: column-reverse;
        gap: 10px;
    }
    
    #converter-mode .layui-form-item:last-of-type .layui-input-block button {
        margin: 0 !important;
        margin-top: 5px !important;
    }
    
    #converter-mode .layui-btn-xs {
        font-size: 12px !important;
        padding: 5px 10px !important;
    }
    
    /* 快捷按钮组 */
    #converter-mode .converter-quick-buttons {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
    }
    
    #converter-mode .converter-quick-buttons .layui-btn {
        flex: 1;
        min-width: 120px;
        margin: 0 !important;
    }
    
    /* 辅助说明文字 */
    #converter-mode .layui-form-mid {
        font-size: 12px;
        margin-top: 5px;
        display: block;
        margin-left: 0;
    }
    
    /* 单选框和复选框组 */
    #converter-mode .layui-form-item .layui-input-block > input[type="radio"],
    #converter-mode .layui-form-item .layui-input-block > input[type="checkbox"] {
        margin-right: 5px;
    }
    
    /* 复选框标签文字 */
    #converter-mode .layui-form-item .layui-input-block > div[lay-skin] {
        display: inline-block;
        margin-right: 15px;
        margin-bottom: 8px;
    }
    
    .converter-help {
        padding: 15px;
        margin-top: 20px;
    }
    
    .converter-help h3 {
        font-size: 15px;
        margin-bottom: 10px;
    }
    
    .converter-help ul {
        font-size: 12px;
        line-height: 1.6;
        padding-left: 18px;
    }
    
    .converter-help li {
        margin: 6px 0;
    }
    
    .converter-help code {
        font-size: 11px;
        padding: 1px 4px;
    }
}

/* 小屏幕隐藏多窗口功能 */
@media screen and (max-width: 1024px) {
    #window-mode .mobile-warning {
        display: block;
    }
    
    #window-mode .window-mode-content {
        display: none;
    }
}