.json-editor-card {
        max-width: 1400px;
        margin: 10px auto;
        border-radius: 20px;
    background-image: linear-gradient(0deg, #fbfbfb, #ffffff);
    border: 2px solid #ffffff;
    box-shadow: 0 0px 8px rgb(0 0 0 / 10%);
        overflow: hidden;
        transition: all 0.2s;
    }
    .json-header {
        background: #fbfdfe;
        padding: 28px 36px;
        border-bottom: 1px solid #eef2f8;
    }
    .json-header h1 {
        font-size: 1.9rem;
        font-weight: 700;
        background: linear-gradient(135deg, #1a5d7a, #2a8c55);
        background-clip: text;
        -webkit-background-clip: text;
        color: transparent;
        margin-bottom: 6px;
        letter-spacing: -0.3px;
    }
    .json-sub {
        font-size: 0.9rem;
        color: #4a627a;
        margin-top: 8px;
        border-left: 4px solid #2c7a4d;
        padding-left: 18px;
        font-weight: 450;
    }
    .json-toolbar {
        padding: 22px 36px 18px 36px;
        display: flex;
        flex-wrap: wrap;
        gap: 14px;
        align-items: center;
        border-bottom: 1px solid #edf2f7;
        background: #ffffff;
    }
    .json-btn {
        background: #ffffff;
        border: 1px solid #d4e0e9;
        padding: 0px 20px;
        border-radius: 48px;
        cursor: pointer;
        font-size: 0.85rem;
        font-weight: 500;
        transition: all 0.2s ease;
        font-family: inherit;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: #2c5a74;
    }
    .json-btn i {
        font-size: 1rem;
    }
    .json-btn-primary {
        background: #2c7a4d;
        border-color: #1f5e3a;
        color: white;
        box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    }
    .json-btn-primary:hover {
        background: #1f5e3a;
        transform: translateY(-2px);
    }
    .json-btn-danger {
        border-color: #e0cdcd;
        color: #bc5a5a;
    }
    .json-btn-danger:hover {
        background: #fff4f4;
        border-color: #d49797;
        transform: translateY(-2px);
    }
    .json-btn:hover {
        background: #edf5fa;
        transform: translateY(-2px);
        border-color: #b8d0e0;
    }
    .json-btn-group {
        margin-left: auto;
        display: flex;
        gap: 12px;
        flex-wrap: wrap;
    }
    .json-status-bar {
        margin: 20px 36px 16px 36px;
        padding: 12px 20px;
        border-radius: 56px;
        background: #f0f6fc;
        font-size: 0.85rem;
        color: #1e5a7a;
        display: flex;
        align-items: center;
        gap: 10px;
        transition: 0.2s;
    }
    .json-status-bar.error {
        background: #ffeae9;
        border-left: 4px solid #dd5e5e;
        color: #bc4e4e;
    }
    .json-status-bar.success {
        background: #e2f3ea;
        border-left: 4px solid #2c7a4d;
        color: #196f43;
    }
    .json-edit-area {
        padding: 8px 36px 32px 36px;
    }
    .json-editor-textarea {
        width: 100%;
        min-height: 560px;
        font-family: 'JetBrains Mono', 'SF Mono', 'Fira Code', monospace;
        font-size: 13px;
        line-height: 1.55;
        padding: 22px 26px;
        border-radius: 28px;
        border: 1px solid #e2ebf3;
        background: #fefefe;
        resize: vertical;
        outline: none;
        transition: 0.15s;
        color: #1f3a4b;
    }
    .json-editor-textarea:focus {
        border-color: #2c7a4d;
        box-shadow: 0 0 0 4px rgba(44, 122, 77, 0.08);
    }
    .json-validation-hint {
        margin-top: 18px;
        display: flex;
        gap: 24px;
        align-items: center;
        flex-wrap: wrap;
        font-size: 0.78rem;
        padding: 0 8px;
    }
    .json-valid-badge {
        background: #e2f5ea;
        color: #117a3a;
        padding: 5px 16px;
        border-radius: 40px;
        font-weight: 500;
    }
    .json-invalid-badge {
        background: #ffebea;
        color: #c74141;
        padding: 5px 16px;
        border-radius: 40px;
        font-weight: 500;
    }
    .json-inline-tip {
        background: #fff6e0;
        border-radius: 32px;
        padding: 6px 16px;
        font-size: 0.75rem;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: #aa7c2c;
    }
    .json-footer {
        background: #f8fbfe;
        padding: 20px 36px;
        font-size: 0.78rem;
        text-align: center;
        color: #5f7d9c;
        border-top: 1px solid #e9f0f5;
        margin-top: 8px;
    }
    @media (max-width: 780px) {
        .json-editor-card {
            margin: 1rem;
        }
        .json-toolbar {
            flex-direction: column;
            align-items: stretch;
        }
        .json-btn-group {
            margin-left: 0;
            justify-content: flex-start;
        }
        .json-edit-area {
            padding: 8px 20px 28px;
        }
        .json-header {
            padding: 20px 24px;
        }
        .json-status-bar {
            margin: 16px 20px;
        }
    }