/*头部*/
        .oak-bg-header {
        text-align: center;
        margin: 30px 0 40px;
    }

    .oak-bg-header h1 {
        color: #1e293b;
        margin-bottom: 10px;
        font-size: 2.5rem;
        font-weight: 600;
    }

    .oak-bg-header p {
        color: #64748b;
        font-size: 1.1rem;
    }
    /* 主容器 */
    .oak-bg-container {
        max-width: 1200px;
        margin: 0 auto;
        font-family: 'Inter', sans-serif;
    }

    /* 内容区 */
    .oak-bg-main-content {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
        margin: 10px auto;
    }

    /* 卡片组件 */
    .oak-bg-card {
        background-color: white;
        border-radius: 10px;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        padding: 2rem;
        transition: transform 0.3s, box-shadow 0.3s;
    }

    .oak-bg-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    }

    .oak-bg-card h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
        color: #4361EE;
        margin-top: 0;
    }

    /* 上传区域 */
    .oak-bg-upload-area {
        border: 2px dashed #ccc;
        border-radius: 10px;
        padding: 3rem;
        text-align: center;
        cursor: pointer;
        transition: border-color 0.3s;
    }

    .oak-bg-upload-area:hover {
        border-color: #4361EE;
    }

    .oak-bg-upload-area.active {
        border-color: #4CC9F0;
        background-color: rgba(76, 201, 240, 0.1);
    }

    .oak-bg-upload-icon {
        font-size: 3rem;
        color: #4361EE;
        margin-bottom: 1rem;
    }

    .oak-bg-upload-text {
        font-size: 1.2rem;
        margin-bottom: 1rem;
    }

    .oak-bg-upload-button {
        background-color: #4361EE;
        color: white;
        padding: 0.8rem 2rem;
        border-radius: 5px;
        font-weight: 600;
        cursor: pointer;
        transition: background-color 0.3s;
        display: inline-block;
        border: none;
    }

    .oak-bg-upload-button:hover {
        background-color: #3A0CA3;
    }

    /* 结果区域 */
    .oak-bg-result-area {
        min-height: 300px;
        display: flex;
        justify-content: center;
        align-items: center;
        border-radius: 10px;
        background-color: #f5f5f5;
        position: relative;
    }

    .oak-bg-result-area.loading::after {
        content: "";
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background-color: rgba(255, 255, 255, 0.8);
        border-radius: 10px;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .oak-bg-result-image {
        max-width: 100%;
        max-height: 400px;
        border-radius: 10px;
        box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    }

    .oak-bg-download-button {
        background-color: #48CAE4;
        color: white;
        padding: 0.8rem 2rem;
        border-radius: 5px;
        font-weight: 600;
        cursor: pointer;
        transition: background-color 0.3s;
        display: inline-block;
        margin-top: 1.5rem;
        text-decoration: none;
        border: none;
    }

    .oak-bg-download-button:hover {
        background-color: #00B4D8;
    }

    /* 消息提示 */
    .oak-bg-error-message,
    .oak-bg-permission-message {
        color: #FF595E;
        margin-top: 1rem;
        display: none;
        padding: 1rem;
        border-radius: 5px;
        background-color: rgba(255, 99, 99, 0.1);
    }

    .oak-bg-error-message.show,
    .oak-bg-permission-message.show {
        display: block;
        text-align: center;
    }

    /* 特性区域 */
    .oak-bg-features {
           margin: 10px auto;
    }

    .oak-bg-features h2 {
        font-size: 1.8rem;
        color: #1E1E24;
        margin-bottom: 2rem;
        text-align: center;
    }

    .oak-bg-feature-grid {
        display: grid;
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .oak-bg-feature-card {
        background-color: white;
        padding: 1.5rem;
        border-radius: 10px;
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
    }

    .oak-bg-feature-icon {
        font-size: 2rem;
        color: #4361EE;
        margin-bottom: 1rem;
    }

    .oak-bg-feature-card h3 {
        color: #1E1E24;
        margin-bottom: 0.5rem;
    }

    .oak-bg-feature-card p {
        color: #666;
        font-size: 0.95rem;
    }

    /* 响应式设计 */
    @media (max-width: 768px) {
        .oak-bg-main-content,
        .oak-bg-feature-grid {
            grid-template-columns: 1fr;
        }
    }