.ln-textarea {
    display: flex;
    align-items: stretch;
    flex: 1;
    min-width: 0;
    min-height: 0;
    width: 100%;
    height: 100%;
    border: 1px solid #d8d8d8;
    border-radius: 4px;
    overflow: hidden;
    background: #fff;
    --ln-pad-y: 4px;
    --ln-pad-x: 10px;
    --ln-line-height: 20px;
    --ln-font-size: 13.6px;
}

.ln-textarea-gutter {
    flex-shrink: 0;
    overflow: hidden;
    min-height: 0;
    align-self: stretch;
    background-color: #f6f6f6;
    border-right: none;
    min-width: 0;
}

.ln-textarea-gutter-field {
    display: block;
    width: 100%;
    height: 100%;
    margin: 0;
    padding-top: var(--ln-pad-y);
    padding-bottom: var(--ln-pad-y);
    border: none;
    outline: none;
    resize: none !important;
    box-sizing: border-box;
    font-family: monospace, Menlo, Monaco, Consolas, "Courier New", monospace;
    font-size: var(--ln-font-size);
    font-weight: normal;
    letter-spacing: normal;
    line-height: var(--ln-line-height);
    -webkit-font-smoothing: antialiased;
    tab-size: 4;
    white-space: pre;
    overflow-wrap: normal;
    word-wrap: normal;
    word-break: normal;
    overflow: hidden;
    background: transparent;
    color: #888;
    text-align: right;
    padding-left: 19px;
    padding-right: 6px;
    pointer-events: none;
    user-select: none;
    cursor: default;
}

.ln-textarea-gutter-field::-webkit-resizer {
    display: none;
}

.ln-textarea-input-wrap {
    flex: 1;
    min-width: 0;
    min-height: 0;
    overflow: hidden;
    display: flex;
}

.ln-textarea-input {
    display: block;
    flex: 1;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    margin: 0;
    padding-top: var(--ln-pad-y);
    padding-bottom: var(--ln-pad-y);
    padding-left: var(--ln-pad-x);
    padding-right: var(--ln-pad-x);
    border: none;
    outline: none;
    resize: none !important;
    box-sizing: border-box;
    font-family: monospace, Menlo, Monaco, Consolas, "Courier New", monospace;
    font-size: var(--ln-font-size);
    font-weight: normal;
    letter-spacing: normal;
    line-height: var(--ln-line-height);
    -webkit-font-smoothing: antialiased;
    tab-size: 4;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
    word-wrap: break-word;
    word-break: break-word;
    overflow-x: hidden;
    overflow-y: auto;
    background: transparent;
    color: #525252;
    border: none;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.35) rgba(0, 0, 0, 0.08);
}

.ln-textarea-input::-webkit-scrollbar {
    width: 8px;
}

.ln-textarea-input::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.22);
    border-radius: 999px;
}

.ln-textarea-input::-webkit-resizer {
    display: none;
}

.ln-textarea-input::placeholder {
    color: #aaa;
}

/* 保持原生选中/聚焦样式，不受 tool-compat 全局 textarea 规则影响 */
.ln-textarea .ln-textarea-input,
.ln-textarea .ln-textarea-gutter-field {
    font-family: monospace, Menlo, Monaco, Consolas, "Courier New", monospace;
}

.ln-textarea .ln-textarea-input:focus {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

.ln-textarea .ln-textarea-gutter-field:focus {
    border: none !important;
    outline: none !important;
    box-shadow: none !important;
}

.ln-textarea-measure {
    position: absolute;
    top: 0;
    left: -9999px;
    visibility: hidden;
    pointer-events: none;
    white-space: pre;
    margin: 0;
    padding: 0;
    border: 0;
}