/**
 * PNG转GIF动画制作工具 - 主样式文件
 * @version 3.6
 * @author Arminosi
 * @description 仿照SpriteSlice的简洁现代设计风格
 */

/* ================================
   基础重置和变量定义
   ================================ */
html {
    overflow-x: hidden; /* 防止水平滚动 */
    box-sizing: border-box;
}

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

:root {
    /* 蓝色主色调配色方案 */
    --primary-color: #1e40af;
    --primary-hover: #1d4ed8;
    --primary-light: #93c5fd;
    --secondary-color: #f1f5f9;
    --accent-color: #0ea5e9; /* 天蓝色强调 */
    --accent-hover: #0284c7;
    --success-color: #059669;
    --success-hover: #047857;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    
    /* 蓝色渐变色彩 */
    --gradient-primary: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    --gradient-success: linear-gradient(135deg, #059669 0%, #10b981 100%);
    --gradient-accent: linear-gradient(135deg, #0ea5e9 0%, #3b82f6 100%);
    --gradient-card: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
    
    /* 文字颜色 */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --text-white: #ffffff;
    
    /* 背景色 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-light: #f1f5f9;
    --bg-dark: #0f172a;
    --bg-glass: rgba(255, 255, 255, 0.95);
    
    /* 边框 */
    --border-color: #e2e8f0;
    --border-radius: 8px;
    --border-radius-large: 12px;
    --border-radius-xl: 16px;
    
    /* 简化的阴影系统 */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 0 1px rgba(30, 64, 175, 0.1);
    
    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;
    
    /* 简化的过渡效果 */
    --transition: all 0.2s ease;
    --transition-fast: all 0.15s ease;
    --transition-bounce: all 0.2s ease;
}

/* ================================
   基础布局
   ================================ */
*, *::before, *::after {
    box-sizing: border-box; /* 全局盒模型 */
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, #1e40af 0%, #3b82f6 100%);
    background-attachment: fixed;
    min-height: 100vh;
    margin: 0;
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-md);
    overflow-x: hidden;
    position: relative;
}

/* 简化背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(59, 130, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(96, 165, 250, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    position: relative;
}

/* ================================
   头部标题
   ================================ */
.header {
    background: var(--gradient-primary) !important;
    color: var(--text-white) !important;
    padding: var(--spacing-2xl) !important;
    text-align: center !important;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* 简化头部装饰元素 */
.header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    /* 移除动画 */
}

/* 移除动画关键帧 */
/* @keyframes headerGlow {
    0% { transform: rotate(0deg) scale(1); }
    100% { transform: rotate(360deg) scale(1.1); }
} */

h1 {
    font-size: 2.8rem !important;
    font-weight: 800 !important;
    margin: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: var(--spacing-md) !important;
    flex-wrap: wrap !important;
    color: var(--text-white) !important;
    position: relative;
    z-index: 2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.title-icon {
    font-size: 3.2rem !important;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
    /* 移除浮动动画 */
}

/* 移除浮动动画关键帧 */
/* @keyframes iconFloat {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
} */

.title-text {
    font-size: 2.8rem !important;
    color: var(--text-white) !important;
    background: linear-gradient(45deg, #ffffff, #dbeafe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-version {
    background: rgba(255, 255, 255, 0.25) !important;
    backdrop-filter: blur(10px) !important;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    border-radius: var(--border-radius) !important;
    font-size: 1rem !important;
    font-weight: 700 !important;
    color: var(--text-white) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    box-shadow: var(--shadow-sm) !important;
}

/* ================================
   语言切换
   ================================ */
.language-switch {
    position: absolute;
    right: var(--spacing-xl);
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    background: rgba(255, 255, 255, 0.15);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-large);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-lg);
    z-index: 3;
}

.lang-btn {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
    min-width: 50px;
    position: relative;
    overflow: hidden;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.lang-btn:hover::before {
    left: 100%;
}

.lang-btn:hover {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.lang-btn.active {
    color: var(--text-white);
    background: rgba(255, 255, 255, 0.25);
    font-weight: 700;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.lang-separator {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1rem;
    user-select: none;
    font-weight: 300;
}

/* ================================
   内容区域
   ================================ */
.main-content {
    padding: var(--spacing-lg) var(--spacing-xl); /* 减少上下内边距 */
    max-width: 100%; /* 防止内容溢出 */
    overflow: visible; /* 允许内容正常显示，不截断 */
    box-sizing: border-box; /* 确保padding计算在内 */
    min-height: auto; /* 允许高度自动调整 */
}

/* ================================
   左右布局容器
   ================================ */
.layout-container {
    display: grid;
    grid-template-columns: minmax(350px, 420px) 1fr;
    gap: var(--spacing-xl);
    align-items: start;
    min-height: auto; /* 移除固定高度限制，允许内容自动扩展 */
    height: auto; /* 允许高度自动调整 */
    width: 100%;
    box-sizing: border-box;
    overflow: visible; /* 允许内容溢出显示 */
}

/* 左侧控制面板 */
.left-panel {
    grid-column: 1;
    min-width: 0; /* 重要：允许收缩 */
}

/* 右侧文件面板 */
.right-panel {
    grid-column: 2;
    min-width: 0; /* 重要：允许收缩 */
    position: relative; /* 改为相对定位，避免sticky限制 */
    height: auto; /* 允许高度自动调整 */
    max-height: none; /* 移除最大高度限制 */
    overflow: visible; /* 允许内容正常显示 */
    z-index: 10; /* 确保在其他元素之上 */
}

.files-panel {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 700px; /* 增加最小高度 */
    max-height: calc(100vh - 120px); /* 增加最大高度 */
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.files-panel-header {
    padding: var(--spacing-lg) var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, var(--bg-light) 0%, var(--bg-secondary) 100%);
    border-radius: var(--border-radius-xl) var(--border-radius-xl) 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
    position: relative;
}

.files-panel-header::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-primary);
}

.files-panel-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.files-count {
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-large);
    font-size: 0.9rem;
    font-weight: 700;
    box-shadow: var(--shadow-md);
    border: 2px solid rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
}

/* shimmer动效已移除 */

/* 帧序列区块内的卡片大小控制器 */
.files-panel .card-size-control {
    padding: var(--spacing-xs) var(--spacing-md); /* 减少内边距 */
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-primary);
    margin: 0;
}

.files-panel .card-size-control .form-control-row {
    gap: var(--spacing-sm);
    align-items: center;
    margin-bottom: 0;
}

.files-panel .card-size-control label {
    font-size: 0.85rem; /* 减小字体 */
    font-weight: 500;
    min-width: 70px; /* 减少最小宽度 */
}

.files-panel .card-size-control .range-input-group {
    flex: 1;
}

/* 调整文件列表在右侧面板中的样式 */
.right-panel .file-list {
    flex: 1;
    margin: 0;
    border: none;
    border-radius: 0 0 var(--border-radius-large) var(--border-radius-large);
    box-shadow: none;
    background: transparent;
    overflow-y: auto;
    overflow-x: hidden;
    max-height: none;
    min-height: 0; /* 允许灵活调整 */
    padding: var(--spacing-sm) var(--spacing-md); /* 减少内边距 */
    padding-bottom: var(--spacing-md); /* 减少底部空间 */
}

.right-panel .file-list:not(:empty) {
    display: block;
}

/* 空状态提示 */
.files-panel .empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
    text-align: center;
}

.files-panel .empty-state-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.files-panel .empty-state-text {
    font-size: 1rem;
    margin-bottom: var(--spacing-sm);
}

.files-panel .empty-state-hint {
    font-size: 0.9rem;
    opacity: 0.7;
}

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

.section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

/* 左侧面板紧凑样式 */
.left-panel .section {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--gradient-card);
    border-radius: var(--border-radius-large);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.left-panel .section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-large) var(--border-radius-large) 0 0;
}

.left-panel .section:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.left-panel .section h3 {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border-bottom: 2px solid var(--border-color);
}

.left-panel .section p {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    color: var(--text-secondary);
}

.left-panel .btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--border-radius-large);
    position: relative;
    overflow: hidden;
}

.left-panel .form-row {
    margin-bottom: var(--spacing-lg);
}

.left-panel .form-control-row {
    gap: var(--spacing-md);
}

.left-panel .control-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.9rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition-bounce);
}

.left-panel .control-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.left-panel .help-text {
    font-size: 0.85rem;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--border-radius);
    border-left: 4px solid var(--accent-color);
}

.left-panel .radio-group {
    gap: var(--spacing-md);
}

.left-panel .radio-item {
    font-size: 0.95rem;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background: var(--bg-primary);
}

.left-panel .radio-item:hover {
    border-color: var(--primary-light);
    background: var(--bg-light);
    transform: translateY(-1px);
}

/* ================================
   左侧生成结果区域
   ================================ */
.result-section {
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.result-section h3 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
}

.result-section .result-content {
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

/* 无结果状态 */
.result-section .no-result-message {
    text-align: center;
    color: var(--text-secondary);
    padding: var(--spacing-lg);
}

.result-section .no-result-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.result-section .no-result-text {
    font-size: 0.95rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
}

.result-section .no-result-hint {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* 预览区域在左侧的样式 */
.result-section #gif-preview-container {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.result-section .preview-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 200px;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
}

.result-section .preview-gif {
    max-width: 100%;
    max-height: 300px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.result-section .preview-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

.result-section .preview-actions .btn {
    font-size: 0.9rem;
    padding: var(--spacing-sm) var(--spacing-md);
}

.result-section .size-info {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-align: center;
    margin-top: var(--spacing-sm);
    padding: var(--spacing-xs);
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

/* ================================
   按钮样式 - 仿照SpriteSlice
   ================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-xl);
    border: 2px solid transparent;
    border-radius: var(--border-radius-large);
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    gap: var(--spacing-sm);
    line-height: 1.5;
    min-height: 44px;
    position: relative;
    overflow: hidden;
    background-clip: padding-box;
}

/* 简化按钮光泽效果 */
.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.3s;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-white);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-hover);
}

.btn-secondary {
    background: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-light);
    border-color: var(--primary-light);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: var(--gradient-success);
    color: var(--text-white);
    border-color: var(--success-color);
    box-shadow: var(--shadow-md);
}

.btn-success:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--success-hover);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-xs) !important;
    filter: grayscale(0.3);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.1rem;
    min-height: 52px;
    font-weight: 700;
    border-radius: var(--border-radius-xl);
}

/* ================================
   文件上传区域
   ================================ */
.upload-area {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.upload-area p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.upload-btn, .btn.upload-btn {
    background-color: var(--primary-color);
    color: var(--text-white);
    border: 1px solid var(--primary-color);
}

.upload-btn:hover, .btn.upload-btn:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

#file-input {
    display: none;
}

/* 拖拽上传区域样式 */
.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    background-color: var(--bg-secondary);
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.upload-zone:hover {
    border-color: var(--primary-color);
    background-color: rgba(30, 64, 175, 0.05);
}

.upload-zone.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(30, 64, 175, 0.1);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(30, 64, 175, 0.2);
}

.upload-zone.drag-over::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, rgba(30, 64, 175, 0.1) 50%, transparent 70%);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.upload-zone:hover .upload-icon,
.upload-zone.drag-over .upload-icon {
    transform: scale(1.1);
}

.upload-text {
    margin-bottom: var(--spacing-sm);
}

.upload-main-text {
    display: block;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.upload-sub-text {
    display: block;
    font-size: 1rem;
    color: var(--text-secondary);
}

.upload-hint {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-style: italic;
}

/* ================================
   表单样式
   ================================ */
.form-row {
    margin-bottom: var(--spacing-lg);
}

.form-row label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.range-input-group {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.range-input {
    flex: 1;
    height: 8px;
    background: linear-gradient(to right, var(--bg-light) 0%, var(--primary-light) 100%);
    border-radius: 4px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.range-input::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    border: 3px solid white;
}

.range-input::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-xl);
}

.range-input::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--gradient-primary);
    border-radius: 50%;
    cursor: pointer;
    border: 3px solid white;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.range-input::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--shadow-xl);
}

.range-value {
    min-width: 70px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gradient-card);
    border-radius: var(--border-radius-large);
    font-weight: 700;
    text-align: center;
    font-size: 0.95rem;
    border: 2px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    color: var(--primary-color);
}

.button-row {
    display: flex;
    gap: var(--spacing-sm);
    margin: var(--spacing-sm) 0;
}

.help-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

/* ================================
   单选按钮组
   ================================ */
.radio-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.radio-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.radio-item:hover {
    background-color: var(--bg-secondary);
}

.radio-item input[type="radio"] {
    margin: 0;
}

.radio-label {
    font-weight: 500;
}

.color-input {
    margin-left: var(--spacing-xs);
    border: none;
    border-radius: var(--border-radius);
    width: 40px;
    height: 30px;
    cursor: pointer;
}

/* ================================
   按钮组
   ================================ */
.button-group {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    margin: var(--spacing-xl) 0;
}

/* ================================
   进度条
   ================================ */
.progress-container {
    margin: var(--spacing-lg) 0;
    padding: var(--spacing-sm);
    background: var(--bg-light);
    border-radius: var(--border-radius-large);
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.05);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: linear-gradient(90deg, var(--bg-secondary), var(--bg-light));
    border-radius: var(--border-radius-large);
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0,0,0,0.1);
}

.progress-fill {
    height: 100%;
    background: var(--gradient-success);
    width: 0%;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: var(--border-radius-large);
    position: relative;
    overflow: hidden;
}

/* progressShine动效已移除 */

/* ================================
   预览区域
   ================================ */
.preview-area {
    margin-top: var(--spacing-xl);
    text-align: center;
}

#gif-preview-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.preview-wrapper {
    position: relative;
    display: inline-block;
}

.preview-gif {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-lg);
    background: 
        linear-gradient(45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(-45deg, #e0e0e0 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, #e0e0e0 75%),
        linear-gradient(-45deg, transparent 75%, #e0e0e0 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

.close-preview-btn {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition);
    z-index: 10;
}

.close-preview-btn:hover {
    background: rgba(255, 255, 255, 1);
    transform: scale(1.1);
}

.preview-actions {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.preview-actions a {
    text-decoration: none;
}

.size-info {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-align: center;
}

/* ================================
   文件列表
   ================================ */
.file-list {
    margin-top: var(--spacing-lg);
}

/* ================================
   卡片大小控制
   ================================ */
.card-size-control {
    background: var(--bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

/* ================================
   作者信息
   ================================ */
.author-info {
    background: var(--gradient-card);
    padding: var(--spacing-lg); /* 减少内边距 */
    text-align: center;
    font-size: 0.9rem; /* 减小字体 */
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
    margin-top: var(--spacing-lg); /* 减少顶部间距 */
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
}

.author-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-large) var(--border-radius-large) 0 0;
}

.author-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.author-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
}

.author-label {
    color: var(--text-primary);
    font-weight: 700;
}

.author-name {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.separator {
    color: var(--border-color);
    font-size: 1.2rem;
    font-weight: 300;
}

.github-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
}

.github-label {
    color: var(--text-primary);
    font-weight: 700;
}

.github-link a {
    color: var(--primary-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    border: 1px solid transparent;
}

.github-link a:hover {
    background: var(--bg-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.github-icon {
    font-size: 1.1rem;
}

.github-url {
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ================================
   响应式设计和动画优化
   ================================ */

/* 全局页面加载动画 */
.container {
    opacity: 1;
    transform: translateY(0);
}

.left-panel .section {
    opacity: 1;
    transform: translateY(0);
}

/* 右侧面板样式 */
.files-panel {
    opacity: 1;
    transform: translateY(0);
}

/* 响应式布局优化 */
@media (max-width: 1200px) {
    .layout-container {
        grid-template-columns: minmax(320px, 380px) 1fr;
        gap: var(--spacing-lg);
    }
    
    .title-text {
        font-size: 2.2rem !important;
    }
    
    .title-icon {
        font-size: 2.8rem !important;
    }
}

@media (max-width: 992px) {
    .layout-container {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .right-panel {
        position: static;
        max-height: 600px; /* 增加移动端高度 */
    }
    
    .files-panel {
        min-height: 500px; /* 增加移动端最小高度 */
        max-height: 600px; /* 增加移动端最大高度 */
    }
    
    h1 {
        font-size: 2rem !important;
    }
    
    .title-text {
        font-size: 2rem !important;
    }
    
    .title-icon {
        font-size: 2.4rem !important;
    }
    
    .language-switch {
        position: static;
        transform: none;
        margin-top: var(--spacing-md);
    }
    
    .header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    body {
        padding: var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-lg);
    }
    
    .header {
        padding: var(--spacing-xl) !important;
    }
    
    h1 {
        font-size: 1.8rem !important;
        flex-direction: column;
        gap: var(--spacing-sm) !important;
    }
    
    .title-text {
        font-size: 1.8rem !important;
    }
    
    .title-icon {
        font-size: 2rem !important;
    }
    
    .left-panel .section {
        padding: var(--spacing-md);
    }
    
    .button-group {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .btn-large {
        width: 100%;
    }
    
    .author-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    body {
        padding: var(--spacing-sm);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    .files-panel {
        min-height: 350px;
        max-height: 400px;
    }
    
    .range-input-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .radio-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* 深色模式支持（可选功能） */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --text-muted: #94a3b8;
        --bg-primary: #1e293b;
        --bg-secondary: #334155;
        --bg-light: #475569;
        --border-color: #475569;
        --bg-glass: rgba(30, 41, 59, 0.95);
    }
    
    .container {
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* 性能优化 - 减少重绘 */
.btn, .range-input, .radio-item {
    will-change: transform;
}

.btn:hover, .range-input:hover, .radio-item:hover {
    will-change: auto;
}

/* 无障碍优化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 打印样式 */
@media print {
    body {
        background: white !important;
        padding: 0 !important;
    }
    
    .header {
        background: white !important;
        color: black !important;
    }
    
    .container {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    
    .language-switch,
    .btn,
    .progress-container {
        display: none !important;
    }
}
.generate-btn {
    background-color: var(--success-color) !important;
    color: var(--text-white) !important;
    border: 1px solid var(--success-color) !important;
    padding: var(--spacing-md) var(--spacing-xl) !important;
    font-size: 1.1rem !important;
    min-height: 48px !important;
    border-radius: var(--border-radius) !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: var(--spacing-xs) !important;
    font-weight: 600 !important;
    box-shadow: var(--shadow-sm) !important;
}

.generate-btn:hover:not(:disabled) {
    background-color: var(--success-hover) !important;
    border-color: var(--success-hover) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-md) !important;
}

.generate-btn:disabled {
    opacity: 0.6 !important;
    cursor: not-allowed !important;
    transform: none !important;
    box-shadow: var(--shadow-sm) !important;
    background-color: #cccccc !important;
    border-color: #cccccc !important;
}

.upload-btn {
    background-color: var(--primary-color) !important;
    color: var(--text-white) !important;
    border: 1px solid var(--primary-color) !important;
    padding: var(--spacing-md) var(--spacing-xl) !important;
    font-size: 1.1rem !important;
    min-height: 48px !important;
    border-radius: var(--border-radius) !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: var(--spacing-xs) !important;
    font-weight: 600 !important;
    box-shadow: var(--shadow-sm) !important;
}

.upload-btn:hover {
    background-color: var(--primary-hover) !important;
    border-color: var(--primary-hover) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-md) !important;
}

.control-btn {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    padding: var(--spacing-sm) var(--spacing-md) !important;
    font-size: 0.9rem !important;
    min-height: 32px !important;
    border-radius: var(--border-radius) !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: var(--spacing-xs) !important;
    font-weight: 500 !important;
    box-shadow: var(--shadow-sm) !important;
}

.control-btn:hover:not(:disabled) {
    background-color: var(--bg-light) !important;
    border-color: var(--text-secondary) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-sm) !important;
}

.control-btn:disabled {
    opacity: 0.6 !important;
    cursor: not-allowed !important;
    transform: none !important;
    box-shadow: none !important;
}

.history-btn {
    background-color: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border: 1px solid var(--border-color) !important;
    padding: var(--spacing-sm) var(--spacing-lg) !important;
    font-size: 0.9rem !important;
    min-height: 40px !important;
    border-radius: var(--border-radius) !important;
    cursor: pointer !important;
    transition: var(--transition) !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: var(--spacing-xs) !important;
    font-weight: 500 !important;
    box-shadow: var(--shadow-sm) !important;
}

.history-btn:hover {
    background-color: var(--bg-light) !important;
    border-color: var(--text-secondary) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-sm) !important;
}

/* 旧的进度条兼容 */
#progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--success-color));
    width: 0%;
    transition: width 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 4px;
}

.progress-container {
    width: 100%;
    height: 24px;
    background-color: var(--bg-light);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    margin: var(--spacing-lg) 0;
}

/* 其他元素ID兼容 */
#card-size-value, #delay-value {
    min-width: 60px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: #549ee7(--bg-secondary);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    font-size: 0.9rem;
}

/* 旧样式类的兼容支持 */
.custom-slider {
    flex: 1;
    height: 6px;
    background: var(--bg-light);
    border-radius: 3px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
}

.custom-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.custom-slider::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-sm);
}

.value-display {
    min-width: 60px;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    font-weight: 600;
    text-align: center;
    font-size: 0.9rem;
}

.unit-label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.form-control-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.form-control-group {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.form-control-group label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.form-control-group label:hover {
    background-color: var(--bg-secondary);
}

.form-help-text {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
    line-height: 1.4;
}

.form-group {
    margin-bottom: var(--spacing-xl);
}

.form-group h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border-color);
}

/* ================================
   响应式设计
   ================================ */
/* 中等屏幕调整（开发者工具场景） */
@media (max-width: 1400px) {
    .layout-container {
        grid-template-columns: minmax(320px, 380px) 1fr;
        gap: var(--spacing-lg); /* 减少间距 */
    }
}

@media (max-width: 1200px) {
    .layout-container {
        grid-template-columns: minmax(300px, 350px) 1fr;
    }
    
    .main-content {
        padding: var(--spacing-lg);
    }
}

@media (max-width: 1000px) {
    .layout-container {
        grid-template-columns: minmax(280px, 320px) 1fr;
        gap: var(--spacing-md); /* 进一步减少间距 */
    }
}

@media (max-width: 850px) {
    /* 响应式：转为上下布局 */
    .layout-container {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-lg);
    }
    
    .left-panel {
        width: 100%;
        min-width: 0;
    }
    
    .right-panel {
        width: 100%;
        min-width: 0;
        position: static;
        max-height: 700px; /* 在小屏幕上也增加高度 */
        order: -1; /* 在小屏幕上将文件面板移到顶部 */
        z-index: auto; /* 重置z-index */
        overflow: visible; /* 允许内容显示 */
    }
    
    .files-panel {
        min-height: 500px;
        max-height: 700px;
    }
    
    /* 小屏幕下的文件列表样式 */
    .right-panel .file-list {
        padding: var(--spacing-md);
        padding-bottom: var(--spacing-xl);
        overflow-y: auto;
        max-height: 600px; /* 增加滚动区域高度 */
    }
}

@media (max-width: 768px) {
    body {
        padding: var(--spacing-md);
    }
    
    .main-content {
        padding: var(--spacing-md);
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .title-text {
        font-size: 2rem;
    }
    
    .radio-group {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .button-group {
        flex-direction: column;
        align-items: center;
    }
    
    .preview-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .title-text {
        font-size: 1.5rem;
    }
    
    .range-input-group {
        flex-direction: column;
        align-items: stretch;
    }
    
    .range-value {
        text-align: center;
    }
}

/* ================================
   对话框样式 - 与新设计保持一致
   ================================ */
.delay-dialog-overlay {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(0, 0, 0, 0.5) !important;
    backdrop-filter: blur(4px) !important;
    z-index: 10000 !important;
    display: none !important;
    align-items: center !important;
    justify-content: center !important;
    opacity: 0 !important;
    transition: opacity 0.3s ease !important;
}

.delay-dialog-overlay.show {
    display: flex !important;
    opacity: 1 !important;
}

.delay-dialog {
    background: var(--bg-primary) !important;
    border-radius: var(--border-radius-large) !important;
    box-shadow: var(--shadow-lg) !important;
    max-width: 500px !important;
    width: 90% !important;
    max-height: 90vh !important;
    overflow: hidden !important;
    position: relative !important;
    transform: scale(0.8) translateY(20px) !important;
    transition: all 0.3s ease !important;
}

.delay-dialog-overlay.show .delay-dialog {
    transform: scale(1) translateY(0) !important;
}

.delay-dialog-header {
    background: var(--bg-secondary);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
}

.delay-dialog-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.delay-dialog-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
    padding: var(--spacing-xs);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.delay-dialog-close:hover {
    color: var(--text-primary);
    background: var(--bg-light);
}

.delay-dialog-content {
    padding: var(--spacing-lg);
}

.delay-input-group {
    margin-bottom: var(--spacing-lg);
}

.delay-input-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.delay-input-wrapper {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.delay-input-wrapper input {
    flex: 1;
    padding: var(--spacing-sm);
    border: none;
    outline: none;
    font-size: 1rem;
}

.delay-input-suffix {
    padding: var(--spacing-sm);
    background: var(--bg-secondary);
    color: var(--text-muted);
    font-weight: 600;
    border-left: 1px solid var(--border-color);
}

.delay-dialog-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: flex-end;
}

.delete-confirmation-message {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.delete-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.delete-warning {
    color: var(--danger-color);
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.delete-btn {
    background-color: var(--danger-color) !important;
    color: var(--text-white) !important;
    border-color: var(--danger-color) !important;
}

.delete-btn:hover:not(:disabled) {
    background-color: #c82333 !important;
    border-color: #c82333 !important;
}

.undo-btn {
    background-color: var(--warning-color) !important;
    color: var(--text-white) !important;
    border-color: var(--warning-color) !important;
    display: none; /* 初始隐藏，仅在有可撤销操作时显示 */
}

.undo-btn:hover:not(:disabled) {
    background-color: #e0a800 !important;
    border-color: #e0a800 !important;
}

/* ================================
   右键菜单样式
   ================================ */
.context-menu {
    position: fixed;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    min-width: 180px;
    padding: var(--spacing-xs);
    display: none;
}

.context-menu-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 0.9rem;
}

.context-menu-item:hover {
    background: var(--bg-secondary);
}

/* ================================
   悬浮状态提示
   ================================ */
.floating-status-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    pointer-events: none;
}

.floating-status-message {
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--primary-color);
    font-size: 0.9rem;
    max-width: 320px;
    min-width: 200px;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    backdrop-filter: blur(8px);
    position: relative;
    transform: translateX(0);
    opacity: 1;
}

.floating-status-message.success {
    border-left-color: var(--success-color);
    background: rgba(240, 255, 240, 0.95);
}

.floating-status-message.warning {
    border-left-color: var(--warning-color);
    background: rgba(255, 248, 220, 0.95);
}

.floating-status-message.error {
    border-left-color: var(--danger-color);
    background: rgba(255, 240, 240, 0.95);
}

.floating-status-message.info {
    border-left-color: var(--accent-color);
    background: rgba(240, 248, 255, 0.95);
}

.floating-status-message.processing {
    border-left-color: var(--accent-color);
    background: rgba(248, 250, 252, 0.95);
}

.floating-status-icon {
    font-size: 1.1em;
    flex-shrink: 0;
}

.floating-status-text {
    flex: 1;
    font-weight: 500;
    line-height: 1.4;
}

/* 进度条样式 */
.mini-progress {
    width: 100%;
    height: 4px;
    background: rgba(0, 0, 0, 0.1);
    border-radius: 2px;
    margin-top: var(--spacing-xs);
    overflow: hidden;
}

.mini-progress-bar {
    height: 100%;
    background: var(--accent-color);
    border-radius: 2px;
    transition: width 0.3s ease;
}

/* slideInRight动画已移除 */

/* ================================
   全局美化效果和特效
   ================================ */

/* 鼠标悬停时的全局光效 */
.btn, .file-item, .section, .files-panel {
    position: relative;
    overflow: hidden;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-light);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    border: 1px solid var(--bg-primary);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--primary-hover), var(--accent-hover));
}

::-webkit-scrollbar-corner {
    background: var(--bg-light);
}

/* 选择文本的美化 */
::selection {
    background: rgba(99, 102, 241, 0.2);
    color: var(--text-primary);
}

::-moz-selection {
    background: rgba(99, 102, 241, 0.2);
    color: var(--text-primary);
}

/* 焦点状态的美化 */
button:focus,
input:focus,
select:focus,
textarea:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* 加载状态的骨架屏效果 */
/* 骨架屏动画已移除 */

.skeleton {
    background: var(--bg-secondary);
}

.pulse {
    opacity: 0.7;
}

.success-pulse {
    transform: scale(1.02);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.5);
}

.shake {
    border-color: var(--error-color);
}

/* 现代化工具提示 */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 8px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-dark);
    color: white;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
}

[data-tooltip]:after {
    content: '';
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 2px;
    border: 4px solid transparent;
    border-top-color: var(--bg-dark);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
    z-index: 1000;
}

[data-tooltip]:hover:before,
[data-tooltip]:hover:after {
    opacity: 1;
    transform: translateX(-50%) translateY(-4px);
}

/* 光效和粒子效果容器 */
.sparkle-container {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
    pointer-events: none;
    z-index: -1;
}

.sparkle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: radial-gradient(circle, var(--primary-light), transparent);
    border-radius: 50%;
    opacity: 0.3;
}

/* 最终的响应式优化 */
@media (max-width: 480px) {
    .sparkle-container {
        display: none; /* 在小屏幕上禁用装饰效果以提升性能 */
    }
    
    .btn::before,
    .checkbox-overlay::before,
    .drag-hint::before {
        display: none; /* 禁用复杂的伪元素效果 */
    }
}

/* 性能优化 - GPU加速 */
.file-item,
.btn,
.header,
.container {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

/* 最终的可访问性改进 */
@media (prefers-reduced-motion: reduce) {
    .sparkle,
    .skeleton,
    .pulse,
    .success-pulse,
    .shake {
        animation: none !important;
    }
    
    * {
        transition-duration: 0.01ms !important;
    }
}

/* ================================
   底部操作区域左右布局
   ================================ */
.bottom-actions-container {
    display: flex;
    gap: 20px;
    margin-top: 20px;
}

.bottom-actions-container .section {
    flex: 1;
    height: 400px; /* 固定高度确保两个区块完全一致 */
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    overflow-y: auto; /* 如果内容超出则可滚动 */
    display: flex;
    flex-direction: column;
}

.bottom-actions-container .section:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.generate-section {
    min-width: 0; /* 允许flex收缩 */
}

.generate-section h3 {
    margin-bottom: var(--spacing-md);
    flex-shrink: 0; /* 标题不收缩 */
}

.generate-section .button-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    flex-shrink: 0; /* 按钮组不收缩 */
}

.generate-section .progress-container {
    flex-shrink: 0; /* 进度条不收缩 */
}

.result-section {
    min-width: 0; /* 允许flex收缩 */
}

.result-section h3 {
    margin-bottom: var(--spacing-md);
    flex-shrink: 0; /* 标题不收缩 */
}

.result-section .result-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-start; /* 改为顶部对齐，避免居中导致的显示问题 */
    padding: 20px 0; /* 添加内边距 */
    overflow-y: auto; /* 如果内容超出则可滚动 */
}

/* 确保预览容器有足够空间 */
#gif-preview-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
    overflow-y: auto;
}

/* 预览主体区域 - 图片和按钮左右布局 */
.preview-main-area {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.preview-wrapper {
    flex: 0 0 auto; /* 不伸缩，保持原始尺寸 */
    position: relative;
}

.preview-actions {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin: 0;
    padding-left: 20px;
}

.preview-actions .btn {
    width: 100%;
    justify-content: center;
}

/* GIF参数信息显示 */
.gif-params-info {
    margin-top: 15px;
    padding: 12px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
}

.param-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 0.85rem;
}

.param-item:last-child {
    margin-bottom: 0;
}

.param-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.param-value {
    color: var(--text-primary);
    font-weight: 600;
    font-family: 'Consolas', 'Monaco', monospace;
}

/* 原来的文件信息样式隐藏，因为已被新的参数区域替换 */
#gif-size-info {
    display: none;
}

/* 在小屏幕上堆叠显示 */
@media (max-width: 768px) {
    .bottom-actions-container {
        flex-direction: column;
    }
    
    .bottom-actions-container .section {
        height: 350px; /* 移动端稍微小一点但仍保持固定高度 */
    }
    
    .result-section .result-content {
        padding: 15px 0;
    }
    
    .preview-main-area {
        flex-direction: column;
        align-items: center;
    }
    
    .preview-actions {
        padding-left: 0;
        padding-top: 15px;
        width: 100%;
    }
}
    }
    
    /* 小屏幕时按钮回到图片下方 */
    .preview-main-area {
        flex-direction: column;
    }
    
    .preview-actions {
        padding-left: 0;
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .preview-actions .btn {
        width: auto;
        min-width: 200px;
    }
    
    .gif-params-info {
        width: 100%;
        margin-top: 15px;
    }
}