.measure-toolbar {
    position: fixed;
    top: 80px;
    left: 16px;
    right: auto;
    width: 130px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    padding: 10px;
    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);
    opacity: 1;
    transform: translate3d(0, 0, 0) scale(1);
    transform-origin: left top;
    transition: opacity 0.22s ease, transform 0.22s cubic-bezier(0.2, 0.8, 0.2, 1), left 0.18s ease, top 0.18s ease;
    pointer-events: auto;
}

.measure-toolbar.is-opening {
    animation: measureToolbarOpen 0.24s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.measure-toolbar.is-closing {
    animation: measureToolbarClose 0.22s ease forwards;
}

@keyframes measureToolbarOpen {
    0% {
        opacity: 0;
        transform: translate3d(0, -12px, 0) scale(0.9);
    }
    100% {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
    }
}

@keyframes measureToolbarClose {
    0% {
        opacity: 1;
        transform: translate3d(0, 0, 0) scale(1);
    }
    100% {
        opacity: 0;
        transform: translate3d(0, -18px, 0) scale(0.96);
    }
}

.toolbar-btn {
    background: linear-gradient(135deg, #f4f9ff 0%, #eef5ff 100%);
    color: #1f6ed8;
    border: 1px solid #cfe2ff;
    border-radius: var(--control-radius);
    width: 100%;
    min-width: 100px;
    text-align: center;
    white-space: nowrap;
    padding: 8px 10px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 600;
}

.toolbar-btn.toolbar-mini-btn {
    width: 100%;
    min-width: 100px;
    height: 38px;
    align-self: stretch;
    padding: 7px 10px;
    border-radius: 999px;
    font-size: 18px;
    line-height: 1;
}
.toolbar-btn.toolbar-mini-btn svg {
    display: block;
    margin-inline: auto;
}

.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;
    left: 16px;
    right: 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);
    will-change: left, top;
    transition: left 0.18s ease, top 0.18s ease, opacity 0.18s ease, transform 0.18s ease;
}

#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;
}