/* /assets/css/machines/building-equip/how-a-expansion-joint-for-pipe-thermal-movement-works-cutaway.css — 本页专属样式（en/zh 共用） */
/* machines 类目基线 + 本页专属样式（en/zh 共用） */
.part .body{fill:var(--metal);stroke:#8ea0b5;stroke-width:1.6}
.part .body2{fill:var(--metal-2);stroke:#a9b7c9;stroke-width:1.2}
.part .body3{fill:#c6d0dd;stroke:none}
.part .accent{fill:none;stroke:#6b7b8c;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.part.is-active .body{fill:#cfe3fb;stroke:var(--accent)}
.part.is-active .body2{fill:#e3eefc;stroke:#60a5fa}
.part.is-active .body3{fill:var(--accent)}
.part.is-active .accent{stroke:var(--accent-2)}
.part.is-active{filter:drop-shadow(0 0 10px rgba(37,99,235,.35))}
.rod{fill:none;stroke:#8ea0b5;stroke-width:7;stroke-linecap:round}
.part.is-active .rod{stroke:var(--accent-2)}
.bellows{transform-box:view-box;transform-origin:556px 360px;animation:flex 3.2s ease-in-out infinite;animation-play-state:paused}
.is-running .bellows{animation-play-state:running}
@keyframes flex{0%,100%{transform:scaleX(1)}50%{transform:scaleX(.93)}}
.pipe-flow{fill:none;stroke:var(--accent);stroke-width:6;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:10 16;opacity:0;transition:opacity .4s}
.is-running .pipe-flow{opacity:.95;animation:flow 1.15s linear infinite}
@keyframes flow{to{stroke-dashoffset:-26}}
.exp-arrows{fill:none;stroke:#ea580c;stroke-width:3;stroke-linecap:round;stroke-linejoin:round;opacity:.85;animation:pulse 3.2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:.4}50%{opacity:.95}}
/* 各部件区分色 */
.part[data-id="part-pipe-left"] .body{fill:#bcd9f2}
.part[data-id="part-pipe-right"] .body{fill:#bcd9f2}
.part[data-id="part-bellows"] .body{fill:#b7c4d4}
.part[data-id="part-tie-rods"] .body{fill:#c6cfda}
.part[data-id="part-anchor-left"] .body,.part[data-id="part-anchor-right"] .body{fill:#cfd9e6}