.measure-toolbar {
    position: fixed;
    top: 80px;
    right: 16px; 
    left: auto;
    transform: none; 
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--window-radius);
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    font-family: 'Inter', 'Segoe UI', sans-serif;
    color: var(--text-primary, #1a1a1a);
}

.toolbar-btn {
    background: linear-gradient(135deg, #f4f9ff 0%, #eef5ff 100%);
    color: #1f6ed8;
    border: 1px solid #cfe2ff;
    border-radius: var(--control-radius);
    padding: 8px 14px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    box-shadow: 0 2px 8px rgba(31, 110, 216, 0.1);
    transition: all 0.2s ease;
    width: 100%; 
    text-align: center;
    margin-bottom: 6px; 
}

.toolbar-btn:hover,
.toolbar-btn:focus-visible {
    background: linear-gradient(135deg, #eaf4ff 0%, #dfeeff 100%);
    border-color: #9fc5ff;
    color: #1558b6;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(31, 110, 216, 0.16);
}

/* 拖拽圆形浮动按钮样式 */
#measureFloatingBtn {
    position: fixed;
    top: 80px;
    right: 16px;
    left: auto;
    transform: none;
    z-index: 9999;
    width: 54px;
    height: 54px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    color: var(--text-primary, #1a1a1a);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 22px;
    cursor: grab;
    user-select: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.2s ease;
}

#measureFloatingBtn:hover {
    transform: translateX(-50%) scale(1.02);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.14);
}

#measureFloatingBtn:active {
    cursor: grabbing;
}

[data-theme="dark"] .measure-toolbar,
[data-theme="dark"] #measureFloatingBtn {
    background: rgba(31, 41, 55, 0.94);
    border-color: rgba(255, 255, 255, 0.08);
    color: #f9fafb;
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
}

[data-theme="dark"] .toolbar-btn {
    background: linear-gradient(135deg, #1e3a5f 0%, #1e40af 100%);
    border-color: #3b82f6;
    color: #dbeafe;
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.18);
}

[data-theme="dark"] .toolbar-btn:hover,
[data-theme="dark"] .toolbar-btn:focus-visible {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    border-color: #93c5fd;
    color: #ffffff;
}