/* 文件管理展示区 */
.filemanager {
    padding: 80px 0;
    background-color: #f8fafc;
}

.filemanager-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 48px;
}

.filemanager-header {
    text-align: center;
    margin-bottom: 48px;
}

.filemanager-title {
    font-size: 32px;
    font-weight: 700;
    color: #1a2332;
    margin: 0 0 12px;
}

.filemanager-subtitle {
    font-size: 16px;
    color: #6b7280;
    margin: 0;
}

.filemanager-body {
    display: flex;
    align-items: center;
    gap: 48px;
}

/* 介绍文字 */
.filemanager-intro {
    flex: 1;
    min-width: 0;
}

.filemanager-intro p {
    font-size: 16px;
    line-height: 1.8;
    color: #3a4556;
    margin: 0 0 20px;
}

.filemanager-intro p:last-child {
    margin-bottom: 0;
}

.filemanager-intro strong {
    color: #0d9488;
    font-weight: 600;
}

/* 预览图 */
.filemanager-preview {
    flex: 1.1;
    min-width: 0;
}

.filemanager-preview .preview-img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    display: block;
    object-fit: contain;
}

.filemanager-preview-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    background-color: #fff;
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: #94a3b8;
}

.filemanager-preview-placeholder svg {
    width: 56px;
    height: 56px;
}

.filemanager-preview-placeholder span {
    font-size: 14px;
}

/* 暗色模式 */
body.dark-mode .filemanager {
    background-color: #141414;
}

body.dark-mode .filemanager-title {
    color: #e0e0e0;
}

body.dark-mode .filemanager-subtitle {
    color: #8896a6;
}

body.dark-mode .filemanager-intro p {
    color: #b0bcc8;
}

body.dark-mode .filemanager-intro strong {
    color: #2dd4bf;
}

body.dark-mode .filemanager-preview-placeholder {
    background-color: #252d3a;
    border-color: #3a4563;
    color: #5a6a80;
}

/* 响应式 */
@media (max-width: 970px) {
    .filemanager-body {
        flex-direction: column;
        align-items: center;
    }

    .filemanager-intro {
        width: 100%;
    }

    .filemanager-preview {
        width: 100%;
        max-width: 520px;
    }
}

@media (max-width: 768px) {
    .filemanager {
        padding: 56px 0;
    }

    .filemanager-container {
        padding: 0 20px;
    }

    .filemanager-header {
        margin-bottom: 36px;
    }

    .filemanager-title {
        font-size: 26px;
    }

    .filemanager-subtitle {
        font-size: 14px;
    }

    .filemanager-intro p {
        font-size: 15px;
        line-height: 1.75;
    }
}

@media (max-width: 480px) {
    .filemanager {
        padding: 40px 0;
    }

    .filemanager-container {
        padding: 0 16px;
    }

    .filemanager-header {
        margin-bottom: 28px;
    }

    .filemanager-title {
        font-size: 22px;
    }

    .filemanager-intro p {
        font-size: 14px;
        line-height: 1.7;
    }
}