.dev-sidebar {
    position: fixed;
    left: 0;
    top: 68px;
    bottom: 0;
    width: 172px;
    z-index: 90;
    background: var(--dev-toolbar-bg);
    border-right: 1px solid var(--dev-toolbar-border);
    padding: 16px 10px;
    box-sizing: border-box;
    overflow-y: auto;
    transition: transform 0.25s ease, opacity 0.25s ease;
}

/* 当侧边栏可见时，body 留出左侧空间 */
body:has(.dev-sidebar:not(.hidden)) header {
    padding-left: 172px;
}

body:has(.dev-sidebar:not(.hidden)) main {
    padding-left: 0;
}

body:has(.dev-sidebar:not(.hidden)) footer {
    padding-left: 0;
}

.dev-sidebar-heading {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 4px;
    padding: 0 2px 12px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--line-color);
}

.dev-sidebar-heading span,
.dev-sidebar-heading strong {
    grid-column: 1;
}

.dev-sidebar-toggle {
    grid-column: 2;
    grid-row: 1 / 3;
    align-self: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    padding: 0;
    border: 1px solid var(--line-color);
    border-radius: var(--radius-sm);
    background: var(--control-bg);
    color: var(--muted-color);
    cursor: pointer;
    transition: color 0.2s, border-color 0.2s;
}

.dev-sidebar-toggle:hover {
    color: var(--ink-color);
    border-color: var(--primary-color);
}

/* 侧边栏隐藏状态 */
.dev-sidebar.hidden {
    transform: translateX(-100%);
    opacity: 0;
    pointer-events: none;
}

/* 展开按钮（侧边栏隐藏时显示） */
.dev-sidebar-expand-btn {
    display: none;
    position: fixed;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 91;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 56px;
    padding: 0;
    border: 1px solid var(--dev-toolbar-border);
    border-left: none;
    border-radius: 0 6px 6px 0;
    background: var(--dev-toolbar-bg);
    color: var(--muted-color);
    cursor: pointer;
    transition: color 0.2s, background 0.2s;
}

.dev-sidebar.hidden ~ .dev-sidebar-expand-btn {
    display: inline-flex;
}

.dev-sidebar-expand-btn:hover {
    color: var(--ink-color);
    background: var(--entry-hover-bg);
}

.dev-sidebar-heading span {
    color: var(--muted-color);
    font-size: 11px;
}

.dev-sidebar-heading strong {
    font-size: 14px;
    letter-spacing: 0;
}

.dev-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.dev-entry-list {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(118px, 1fr));
    gap: 8px;
}

.dev-entry {
    display: inline-flex;
    min-height: 48px;
    flex-direction: column;
    justify-content: center;
    gap: 1px;
    padding: 7px 10px;
    border: 1px solid var(--entry-border);
    border-radius: var(--radius-sm);
    background: var(--entry-bg);
    color: var(--ink-color);
    text-decoration: none;
    box-sizing: border-box;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.dev-entry:hover {
    transform: translateY(-1px);
    border-color: var(--entry-hover-border);
    background: var(--entry-hover-bg);
}

.dev-entry-admin {
    border-left: 2px solid var(--secondary-color);
}

.dev-entry-docs {
    border-left: 2px solid var(--primary-color);
}

.dev-entry-req {
    border-left: 2px solid var(--primary-color);
}

.dev-entry-label {
    font-size: 14px;
    font-weight: 700;
}

.dev-entry-meta {
    color: var(--muted-color);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 11px;
}

/* 小屏幕隐藏侧边栏 */
@media (max-width: 860px) {
    .dev-sidebar {
        display: none;
    }
    body:has(.dev-sidebar:not(.hidden)) header {
        padding-left: 0;
    }
    body:has(.dev-sidebar:not(.hidden)) main {
        padding-left: 20px;
    }
    body:has(.dev-sidebar:not(.hidden)) footer {
        padding-left: 20px;
    }
    .dev-entry-list {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 520px) {
    .dev-entry-list {
        grid-template-columns: 1fr;
    }
}

/* 语言切换开关 */