h1 {
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.subtitle {
    opacity: 0.95;
}

.main-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.image-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    background: #f7fafc;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
    margin-bottom: 26px;
    text-align: center;
}

.image-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

.image-item.selected {
    box-shadow: 0 0 0 3px #667eea;
}

.image-item img {
    width: 100%;
    /*height: 150px;*/
    object-fit: cover;
    display: block;
}

.image-info {
    padding: 10px;
    background: white;
}

.image-name {
    color: #2d3748;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    /* margin-bottom: 5px; */
}

.image-size {
    color: #718096;
}

.checkbox-wrapper {
    position: absolute;
    top: 4px;
    left: 10px;
    background: white;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    z-index: 10;
    opacity: 0.7;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: #667eea;
    margin: 0;
}

.image-item.selected .checkbox-wrapper {
    background: #667eea;
}

.action-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
    flex-wrap: wrap;
    gap: 15px;
}

.selection-info {
    color: #4a5568;
}

.selected-count {
    color: #667eea;
    font-weight: bold;
}

.button-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-secondary {
    background: #e2e8f0;
    color: #000000;
}

.btn-secondary:hover {
    background: #cbd5e0;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    z-index: 1000;
}

.progress-bar.active {
    transform: scaleX(1);
}

.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background: white;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-left: 4px solid #48bb78;
}

.toast.error {
    border-left: 4px solid #f56565;
}

.toast.info {
    border-left: 4px solid #4299e1;
}

@media (max-width: 768px) {

    .gallery {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: 15px;
    }

    .action-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .button-group {
        justify-content: center;
    }
}

/** 新增 **/
input[name="date"] {
    
}