:root {
    --primary-color: #4CAF50;
    --secondary-color: #2196F3;
    --background-color: #f5f5f5;
    --text-color: #333;
}

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

body {
    font-family: Arial, sans-serif;
    background: url('../images/background .jpg') center/cover no-repeat fixed;
    color: var(--text-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

/* 上传区域样式 */
.upload-area {
    width: 100%;
    max-width: 600px;
    border: 2px dashed #ccc;
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 2rem auto;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background-color: rgba(76, 175, 80, 0.1);
}

.upload-area i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 主要内容区域布局 */
.main-content {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.video-section {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.video-section video {
    width: 100%;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.video-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    width: 100%;
    margin-top: 1rem;
}

.info-item {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 8px;
    padding: 1rem;
    text-align: center;
}

.info-item.video-name {
    grid-column: 1 / -1;
    margin-bottom: 1rem;
}

.info-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.info-item p {
    color: var(--text-color);
    font-size: 0.85rem;
}
.info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.info-grid p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-grid i {
    color: var(--primary-color);
}

/* 提取按钮和进度条区域 */
.extract-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.progress-container {
    width: 100%;
    max-width: 400px;
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background-color: #eee;
    border-radius: 4px;
    overflow: hidden;
}

.progress {
    width: 0%;
    height: 100%;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.progress-text {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: var(--text-color);
}

/* 每秒分组样式 */
.second-group {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 8px;
    padding: 0.8rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.second-group h4 {
    color: var(--primary-color);
    margin-bottom: 0.8rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid #eee;
    font-size: 0.9rem;
}

.frames-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    gap: 0.5rem;
    padding: 0.5rem;
}

.frame-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.frame-wrapper img {
    width: 100%;
    height: 60px;
    object-fit: cover;
    border-radius: 4px;
    cursor: pointer;
    transition: transform 0.2s;
}
.frame-wrapper img:hover {
    transform: scale(1.05);
}
.frame-label {
    font-size: 0.7rem;
    color: #666;
    margin-top: 0.2rem;
}

/* 图片网格容器样式更新 */
.image-grid {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* 提取的图片区域标题样式 */
.extracted-images h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    text-align: center;
}

/* 操作按钮样式 */
.action-buttons {
    width: 100%;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}
.action-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 140px;
    height: 120px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    cursor: pointer;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    position: relative;
    overflow: hidden;
}

/* 所有按钮默认状态 */
.action-btn, .action-btn-danger {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.action-btn .icon {
    stroke: #666;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-color: rgba(255, 255, 255, 0.3);
    background: rgba(255, 255, 255, 0.25);
}
.action-btn:hover .icon {
    stroke: #333;
}
.action-btn-danger:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}
.action-btn-danger:hover .icon {
    stroke: #dc3545;
}
.action-btn:hover::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, transparent 60%);
    transform: scale(0);
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.action-btn:hover .icon {
    stroke: white;
    transform: scale(1.1);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 危险按钮悬停效果 */
.action-btn-danger:hover {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
    background-color: var(--primary-color);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.action-btn-danger:hover .icon {
    stroke: white;
    transform: scale(1.1);
}
/* 禁用状态 */
.action-btn:disabled {
    background-color: rgba(245, 245, 245, 0.5);
    border-color: rgba(221, 221, 221, 0.5);
    cursor: not-allowed;
    transform: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.action-btn:disabled .icon {
    stroke: #999;
}
/* 上传区域图标样式 */
.upload-area .icon {
    width: 64px;
    height: 64px;
    stroke: #666;
    margin-bottom: 1rem;
}
.upload-area:hover .icon {
    stroke: var(--primary-color);
}
/* 视频信息图标样式 */
.info-grid .icon {
    width: 16px;
    height: 16px;
    stroke: var(--primary-color);
}
/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
}
.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 2rem;
    border-radius: 8px;
    max-width: 500px;
    position: relative;
}
.close {
    position: absolute;
    right: 1rem;
    top: 1rem;
    font-size: 1.5rem;
    cursor: pointer;
}
/* 提取图片选项样式 */
.extract-options {
    margin-top: 1rem;
}
.option {
    margin-bottom: 1rem;
}
.buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}
/* 右侧面板样式 */
.right-panel {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.extract-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.extract-controls input {
    width: 80px;
    padding: 0.5rem;
    border: 1px solid #ccc;
    border-radius: 4px;
}
/* 调整图片网格容器的最大宽度 */
.extracted-images {
    width: 100%;
    max-width: 1200px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.18);
}
/* 图标样式 */
.icon {
    width: 48px;
    height: 48px;
    stroke: #666;
    transition: stroke 0.3s ease;
}