/* 与全站子页一致：边距/最大宽度由 common .page-container 控制；抵消 Bootstrap html 62.5% */
html:has(body.proton-page) {
    font-size: 100%;
}

body.proton-page.page-container {
    font-size: 16px;
    line-height: 1.6;
}

.bodypad {
    padding: 0 20px;
    transition-duration: 300ms;
}

@media (min-width: 699px) {
    .bodypad {
        padding: 0 75px;
    }
}

@media (min-width: 1200px) {
    .bodypad {
        padding: 0 150px;
    }
}

.grey {
    color: #999;
    font-weight: normal !important;
}

.greyer {
    color: #bbb;
}

.proton-toolbar .btn {
    font-size: 16px;
    text-align: right;
    position: relative;
    top: -1px;
}

.proton-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    margin-top: 6px;
    margin-bottom: 4px;
    color: var(--color-body);
}

.proton-toolbar__cell {
    text-align: center;
}

.proton-toolbar__cell--gap {
    margin-left: 10px;
}

.proton-toolbar__speed {
    margin-left: auto;
    align-self: center;
    font-weight: 600;
    color: var(--gradient-theme-title);
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
    padding-left: 12px;
}

/* 相对文档流占位，避免与全站 .page-header 在视口顶部重叠（原先 absolute+top:0 相对视口） */
.sim-root {
    position: relative;
    top: auto;
    left: auto;
    min-width: 680px;
    min-height: 600px;
    box-sizing: border-box;
}

/* 左侧控件 + 主画布固定宽度，整体在内容区内水平居中 */
.sim-stage {
    position: relative;
    width: 620px;
    max-width: 100%;
    min-height: 600px;
    margin-left: auto;
    margin-right: auto;
}

.rm-e,
.rm-b {
    position: absolute;
    margin-left: -45px;
}

.rm-e {
    margin-top: 200px;
}

.rm-b {
    margin-top: 420px;
}

.rm-e .key-hint,
.rm-b .key-hint {
    position: absolute;
    left: -30px;
    top: 3px;
}

.label-force {
    display: inline-block;
    position: absolute;
    margin-left: -38px;
    margin-top: 315px;
    line-height: 1;
    color: #bbb;
}

.label-e {
    display: inline-block;
    position: absolute;
    margin-left: 15px;
    margin-top: 145px;
    color: #27c63a;
    width: 50px;
}

.label-b {
    display: inline-block;
    position: absolute;
    margin-left: 15px;
    margin-top: 490px;
    color: #4d70c2;
    width: 50px;
}

.guide-line {
    display: inline-block;
    position: absolute;
    margin-left: -20px;
    height: 0;
    width: 0;
    border: 1px solid transparent;
}

.guide-line--b {
    margin-top: 435px;
}

.guide-line--te {
    margin-top: 167px;
}

.guide-line--le {
    margin-top: 235px;
}

.m-div {
    background: var(--color-card);
    border: 2px solid #ddd;
    position: absolute;
    top: 80px;
    margin-left: 120px;
    height: 500px;
    width: 500px;
}

.f-div {
    border: 2px solid #ddd;
    position: absolute;
    top: 280px;
    height: 100px;
    margin-left: 0;
    width: 100px;
    overflow: hidden;
}

.f-div .axis-dot {
    margin-top: 46px;
    margin-left: 45px;
    height: 0;
    width: 0;
    border: 3px solid #333;
    pointer-events: none;
}

.bounder,
.forcer,
.dragger {
    position: absolute;
    pointer-events: none;
    transition-duration: 10ms;
}

.bounder {
    margin-top: 45px;
    margin-left: 45px;
    height: 0;
    width: 0;
    border: 3px solid #f00;
    z-index: -1;
}

.forcer {
    margin-top: -5px;
    margin-left: 45px;
    height: 0;
    width: 0;
    border: 3px solid #333;
}

.dragger {
    margin-top: 45px;
    margin-left: 45px;
    height: 0;
    width: 0;
    border: 3px solid #333;
}

.dragger .glyphicon {
    transform: translate(-8.6px, -5px);
    transform-origin: 0 -4px;
}

.g-svg-wrap {
    margin-top: -50px;
}

.e-div,
.b-div {
    position: absolute;
    height: 100px;
    width: 100px;
    cursor: pointer;
}

.e-div {
    border: 2px solid #a2eabc;
    top: 170px;
}

.b-div {
    border: 2px solid #b8c0e8;
    top: 390px;
}

.cursor-dot {
    height: 0;
    width: 0;
    border: 3px solid #f00;
    transition-duration: 10ms;
    position: absolute;
}

.help-block {
    margin-top: 28px;
    margin-bottom: 0;
    padding: 25px;
    background: var(--color-card);
    border: 1px solid rgba(0, 0, 0, 0.07);
    box-shadow: var(--shadow-card-float);
    color: var(--color-body);
}

.help-block h3 {
    color: var(--gradient-theme-title);
    margin-top: 0;
}

.help-block .note-tight {
    display: block;
    margin-top: -10px;
    margin-bottom: 10px;
}