/* ========== 表单样式 ========== */

/* 区块容器 */
.block-section {
    background: var(--background-dark);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.block-section:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 20px rgba(37, 99, 235, 0.2);
}

.block-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.block-title::before {
    content: '';
    width: 4px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #7c3aed 100%);
    border-radius: 2px;
}

/* 表单组 */
.form-group {
    margin-bottom: 20px;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.form-label .required {
    color: #ef4444;
    margin-left: 4px;
}

.form-label .optional {
    color: var(--text-secondary);
    font-weight: 400;
    margin-left: 4px;
    font-size: 13px;
}

/* 文本域 */
.form-textarea {
    width: 100%;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 15px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    resize: vertical;
    transition: var(--transition);
}

.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    background: var(--background-dark);
}

.form-textarea::placeholder {
    color: var(--text-secondary);
}

.form-textarea.small {
    min-height: 80px;
}

.form-textarea.medium {
    min-height: 120px;
}

.form-textarea.large {
    min-height: 150px;
}

/* 下拉选择框 */
.form-select {
    width: 100%;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Microsoft YaHei', sans-serif;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2394a3b8' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L2 4h8z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 自定义输入框 */
.custom-input-group {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

.custom-input {
    flex: 1;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 15px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Microsoft YaHei', sans-serif;
    transition: var(--transition);
}

.custom-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 多选框网格 */
.checkbox-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 14px;
}

/* 网格组 */
.grid-group {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 14px;
}

.grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 12px;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    text-align: center;
    position: relative;
}

.grid-item:hover {
    border-color: var(--primary-color);
    background: var(--background-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.grid-item.checked {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.2);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.grid-indicator {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    background: var(--background-card);
}

.grid-item.checked .grid-indicator {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.grid-indicator::after {
    content: '✓';
    color: white;
    font-size: 12px;
    font-weight: bold;
    display: none;
}

.grid-item.checked .grid-indicator::after {
    display: block;
}

.grid-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    width: 100%;
}

.grid-thumbnail {
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    background: var(--background-dark);
    cursor: pointer;
    transition: var(--transition);
}

.grid-thumbnail:hover {
    transform: scale(1.05);
}

.grid-label {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 600;
    line-height: 1.3;
    word-break: break-word;
}

.grid-sublabel {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 400;
    line-height: 1.2;
    word-break: break-word;
}

/* 多选框 */
.checkbox-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 14px 18px;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    text-align: center;
    position: relative;
}

.checkbox-item:hover {
    border-color: var(--primary-color);
    background: var(--background-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(37, 99, 235, 0.25);
}

.checkbox-item.checked {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.2);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.3);
}

.checkbox-item input[type="checkbox"] {
    display: none;
}

.checkbox-indicator {
    position: absolute;
    top: 12px;
    right: 12px;
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    background: var(--background-card);
}

.checkbox-item.checked .checkbox-indicator {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-indicator::after {
    content: '✓';
    color: white;
    font-size: 12px;
    font-weight: bold;
    display: none;
}

.checkbox-item.checked .checkbox-indicator::after {
    display: block;
}

.checkbox-label {
    font-size: 13px;
    color: var(--text-primary);
    font-weight: 500;
    line-height: 1.3;
    word-break: break-word;
    padding: 0 4px;
}

/* 开关 */
.switch-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.switch {
    position: relative;
    width: 50px;
    height: 26px;
}

.switch input {
    display: none;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 26px;
    transition: var(--transition);
}

.switch-slider::before {
    position: absolute;
    content: '';
    height: 18px;
    width: 18px;
    left: 2px;
    bottom: 2px;
    background: var(--text-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.switch input:checked + .switch-slider {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.switch input:checked + .switch-slider::before {
    transform: translateX(24px);
    background: white;
}

.switch-label {
    font-size: 14px;
    color: var(--text-primary);
}

/* 标签组 */
.tag-group {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
}

.tag-item:hover {
    border-color: var(--primary-color);
}

.tag-item.active {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.2);
    color: white;
}

.tag-indicator {
    width: 14px;
    height: 14px;
    border: 2px solid var(--text-secondary);
    border-radius: 50%;
    transition: var(--transition);
}

.tag-item.active .tag-indicator {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.tag-indicator::after {
    content: '✓';
    color: white;
    font-size: 9px;
    font-weight: bold;
    display: none;
}

.tag-item.active .tag-indicator::after {
    display: block;
}

/* 分组标签 */
.category-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 15px 0 10px 0;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* 选中计数 */
.selection-count {
    font-size: 12px;
    color: var(--primary-color);
    margin-left: 8px;
    background: rgba(37, 99, 235, 0.1);
    padding: 2px 8px;
    border-radius: 10px;
}

/* 操作按钮组 */
.form-actions {
    display: flex;
    gap: 15px;
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid var(--border-color);
}

.action-btn {
    flex: 1;
    padding: 14px 24px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.action-btn-reset {
    background: var(--background-lighter);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.action-btn-reset:hover {
    background: var(--border-color);
    border-color: var(--secondary-color);
}

.action-btn-save {
    background: linear-gradient(135deg, var(--success-color) 0%, #059669 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.action-btn-save:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.6);
}

.action-btn-load {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 158, 11, 0.4);
}

.action-btn-load:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 158, 11, 0.6);
}

/* 搜索框 */
.search-box {
    position: relative;
    margin-bottom: 15px;
}

.search-input {
    width: 100%;
    background: var(--background-lighter);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 15px 12px 40px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Microsoft YaHei', sans-serif;
    transition: var(--transition);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-size: 16px;
}

/* 可折叠区块 */
.collapsible-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
}

.collapsible-toggle {
    font-size: 20px;
    transition: var(--transition);
    color: var(--text-secondary);
}

.collapsible-content {
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.collapsible-content.collapsed {
    max-height: 0;
}

/* 滚动区域 */
.scrollable-content {
    max-height: 300px;
    overflow-y: auto;
    padding-right: 8px;
}

.scrollable-content::-webkit-scrollbar {
    width: 6px;
}

.scrollable-content::-webkit-scrollbar-track {
    background: var(--background-dark);
    border-radius: 3px;
}

.scrollable-content::-webkit-scrollbar-thumb {
    background: var(--background-lighter);
    border-radius: 3px;
}

.scrollable-content::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 响应式 */
@media (max-width: 768px) {
    .checkbox-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-actions {
        flex-direction: column;
    }

    .tag-item {
        font-size: 12px;
        padding: 6px 12px;
    }
}

/* ========== 图片上传区域 ========== */
.image-upload-area {
    position: relative;
    width: 100%;
}

.upload-placeholder {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--background-lighter);
}

.upload-placeholder:hover {
    border-color: var(--primary-color);
    background: var(--background-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.2);
}

.upload-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    color: var(--primary-color);
    transition: var(--transition);
}

.upload-placeholder:hover .upload-icon {
    transform: scale(1.1);
}

.upload-icon svg {
    width: 100%;
    height: 100%;
    fill: var(--primary-color);
}

.upload-hint {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.upload-subhint {
    font-size: 13px;
    color: var(--text-secondary);
}

.upload-preview {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    background: var(--background-dark);
    border: 2px solid var(--border-color);
    transition: var(--transition);
}

.upload-preview:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.2);
}

.upload-preview img {
    width: 100%;
    height: auto;
    max-height: 300px;
    object-fit: contain;
    display: block;
}

.upload-remove {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 36px;
    height: 36px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    z-index: 10;
}

.upload-remove:hover {
    background: rgba(239, 68, 68, 0.9);
    transform: scale(1.1);
}

.upload-remove svg {
    width: 20px;
    height: 20px;
    fill: white;
}

/* 拖拽上传状态 */
.image-upload-area.drag-over .upload-placeholder {
    border-color: var(--primary-color);
    background: rgba(37, 99, 235, 0.1);
    transform: scale(1.02);
}

/* 上传中状态 */
.image-upload-area.uploading .upload-placeholder {
    pointer-events: none;
    opacity: 0.6;
}

.image-upload-area.uploading .upload-placeholder::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 50 50'%3E%3Ccircle cx='25' cy='25' r='20' stroke='%232563eb' stroke-width='4' fill='none' stroke-dasharray='80' stroke-dashoffset='20'%3E%3CanimateTransform attributeName='transform' type='rotate' from='0 25 25' to='360 25 25' dur='1s' repeatCount='indefinite'/%3E%3C/circle%3E%3C/svg%3E") no-repeat center;
    background-size: 40px;
}

/* 生成中状态 */
.image-upload-area.generating::after {
    content: '正在生成描述...';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    z-index: 100;
    white-space: nowrap;
}

.image-upload-area.generating .upload-preview {
    opacity: 0.5;
}

/* 成功消息 */
.upload-success-message {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--success-color, #10b981);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    z-index: 100;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translate(-50%, 10px);
    }
    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

/* 响应式 */
@media (max-width: 768px) {
    .upload-placeholder {
        padding: 30px 15px;
    }

    .upload-icon {
        width: 50px;
        height: 50px;
    }

    .upload-hint {
        font-size: 14px;
    }

    .upload-subhint {
        font-size: 12px;
    }

    .upload-preview img {
        max-height: 200px;
    }
}