.header-top {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    width: 100%;
}

.github-link {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 6px;
    margin-top: 15px;
    font-size: 12px;
    color: #b0b0b0;
}

.github-link a {
    color: #888;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: color 0.2s;
}

.github-link a:hover {
    color: #64B5F6;
}

.version-link {
    background-color: #404040;
    color: #b0b0b0 !important;
    padding: 4px 8px;
    border-radius: 3px;
    font-size: 11px;
    opacity: 0.6;
}

.version-link:hover {
    background-color: #505050;
    color: #64B5F6 !important;
    opacity: 1;
}

.palette-selector {
    position: relative;
    display: inline-block;
    margin-bottom: 5px;
}

.palette-btn {
    background-color: #2196F3;
    color: white;
    border: none;
    padding: 3px 6px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    display: flex;
    align-items: center;
    gap: 2px;
}

.palette-btn:hover {
    background-color: #1976D2;
}

.palette-btn::after {
    content: '\25BC';
    font-size: 8px;
}

.palette-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #2c2c2c;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    min-width: 160px;
    z-index: 100;
    display: none;
    margin-top: 3px;
    overflow: hidden;
    border: 1px solid #3c3c3c;
    font-size: 12px;
}

.palette-dropdown.show {
    display: block;
}

.palette-option {
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 12px;
    color: #e0e0e0;
}

.palette-option:hover {
    background-color: #3c3c3c;
}

.palette-option.active {
    background-color: #2196F3;
    color: white;
}

.header-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 10px;
    position: relative;
}

.header-controls {
    display: flex;
    gap: 10px;
    align-items: center;
    width: 100%;
    justify-content: center;
}

.palette-info {
    margin-bottom: 10px;
    font-size: 14px;
    color: #b0b0b0;
}

/* 语言切换 & 引擎切换按钮 */
.lang-selector {
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    gap: 4px;
}

.lang-btn, .engine-btn {
    background-color: #404040;
    color: #ffffff;
    border: none;
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
    opacity: 0.6;
    transition: opacity 0.2s, background-color 0.2s;
}

.lang-btn:hover, .engine-btn:hover {
    background-color: #505050;
    opacity: 1;
}

.engine-btn.active {
    background-color: #2196F3;
    opacity: 0.9;
}

/* 缩放选择器样式 */
.zoom-selector {
    position: absolute;
    top: 0;
    right: 0;
}

.zoom-btn {
    background-color: #404040;
    color: #b0b0b0;
    border: none;
    padding: 4px 8px;
    border-radius: 3px;
    cursor: pointer;
    font-size: 11px;
    display: flex;
    align-items: center;
    gap: 4px;
    opacity: 0.6;
    transition: opacity 0.2s, background-color 0.2s;
}

.zoom-btn:hover {
    background-color: #505050;
    opacity: 1;
}

.zoom-btn::after {
    content: '\25BC';
    font-size: 8px;
}

.zoom-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #2c2c2c;
    border-radius: 4px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    min-width: 80px;
    z-index: 1000;
    display: none;
    margin-top: 3px;
    overflow: hidden;
    border: 1px solid #3c3c3c;
}

.zoom-dropdown.show {
    display: block;
}

.zoom-option {
    padding: 6px 10px;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 11px;
    color: #e0e0e0;
    text-align: center;
}

.zoom-option:hover {
    background-color: #3c3c3c;
}

.zoom-option.active {
    background-color: #505050;
    color: #ffffff;
}