/* /assets/machines/fluid-pump-valve/how-a-tap-pressure-reducing-valve-works-cutaway.css — 本页专属样式（en/zh 共用） */
/* ============ 特殊材质（Solid-fill internals） ============ */
.part .water{fill:#6fa8dc;fill-opacity:.6;stroke:#2563eb;stroke-width:1.2}
.part.is-active .water{fill:#2563eb;fill-opacity:.75}
.part .ceramic{fill:#f1f4f8;stroke:#9aa6b8;stroke-width:2}
.part.is-active .ceramic{fill:#ffffff;stroke:var(--accent-2)}
.part .coffee{fill:#6f4a2f;stroke:#4b3220;stroke-width:1}
.part.is-active .coffee{fill:#8a5a38;stroke:#b0703a}
.part .crema{fill:#d9a86c}
.part.is-active .crema{fill:#e8b877}
.stream{fill:none;stroke:#6f4a2f;stroke-width:6;stroke-linecap:round;stroke-dasharray:9 9;opacity:.85}
.is-running .stream{animation:flow 1.1s linear infinite}

/* ============ 零件本体/区分色（part bodies & per-part distinct fills） ============ */
.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}
/* active highlight stays blue */
.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))}

/* ============ 动画：叶轮 / 光环（motion） ============ */
.impeller{transform-box:view-box;animation:spin 1.4s linear infinite;animation-play-state:paused}
.is-running .impeller{animation-play-state:running}
@keyframes spin{to{transform:rotate(360deg)}}

.halo{opacity:0;transition:opacity .5s}
.is-running .halo{opacity:1;animation:halo 2.2s ease-in-out infinite}
@keyframes halo{0%,100%{opacity:.35}50%{opacity:.85}}

/* ============ 管道流动（flow） ============ */
.pipe-case{fill:none;stroke:#94a3b8;stroke-width:24;stroke-linecap:round;stroke-linejoin:round}
.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;
}
.pipe-flow.hot{stroke:#ea580c}
.pipe-flow.cold{stroke:#2563eb}
.is-running .pipe-flow{opacity:.95;animation:flow 1.15s linear infinite}
.is-running .pipe-flow.hot{animation-duration:.9s}
@keyframes flow{to{stroke-dashoffset:-26}}
/* ============ 自来水减压阀剖面图 · Tap pressure-reducing valve cutaway ============ */
/* pressure-reducing-valve · merged from source <style> */

body[data-topic="pressure-reducing-valve"] .svg-title{fill:#16202c;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
           font-size:17px;font-weight:600;letter-spacing:.08em;text-anchor:middle;}
body[data-topic="pressure-reducing-valve"] .svg-sub{fill:#64748b;font-size:12px;text-anchor:middle;}
body[data-topic="pressure-reducing-valve"] .tag   {fill:#334155;font-size:18px;font-weight:600;text-anchor:middle;}
body[data-topic="pressure-reducing-valve"] .tag-sm{fill:#5b6472;font-size:13px;text-anchor:middle;}
body[data-topic="pressure-reducing-valve"] .leader{fill:none;stroke:#cbd5e1;stroke-width:1.2;stroke-dasharray:3 3;}
body[data-topic="pressure-reducing-valve"] .legend{fill:#5b6472;font-size:11px;text-anchor:middle;}

body[data-topic="pressure-reducing-valve"] .shell-layer{fill:#cbd5e1;stroke:#94a3b8;stroke-width:3;}
body[data-topic="pressure-reducing-valve"] .stage[data-shell="glass"] .shell-layer{opacity:.15;}

body[data-topic="pressure-reducing-valve"] .valve-body{fill:#e2e8f0;stroke:#1e293b;stroke-width:2.5;stroke-linejoin:round;}
body[data-topic="pressure-reducing-valve"] .valve-body-in{fill:#f8fafc;stroke:#94a3b8;stroke-width:1.5;stroke-linejoin:round;}

body[data-topic="pressure-reducing-valve"] .pipe-high{fill:#fb923c;stroke:#ea580c;stroke-width:2.5;stroke-linejoin:round;}
body[data-topic="pressure-reducing-valve"] .pipe-low {fill:#22d3ee;stroke:#0891b2;stroke-width:2.5;stroke-linejoin:round;}

body[data-topic="pressure-reducing-valve"] .flow{
  fill:none;stroke-width:5;stroke-linecap:round;
  stroke-dasharray:12 10;stroke-dashoffset:0;
  animation:prv-flowDash 1s linear infinite;
}
body[data-topic="pressure-reducing-valve"] .flow.high{stroke:#ea580c;}
body[data-topic="pressure-reducing-valve"] .flow.low {stroke:#0891b2;animation-duration:1.3s;}
@keyframes prv-flowDash{to{stroke-dashoffset:-44}}

body[data-topic="pressure-reducing-valve"] .diaphragm{fill:#a5f3fc;stroke:#0891b2;stroke-width:2.5;stroke-linejoin:round;
           animation:diaFlex 3.2s ease-in-out infinite;
           transform-box:fill-box;transform-origin:50% 100%;}
@keyframes diaFlex{
  0%,100%{transform:scaleY(1)}
  50%    {transform:scaleY(.88)}
}

body[data-topic="pressure-reducing-valve"] .spring{
  fill:none;stroke:#64748b;stroke-width:3;stroke-linecap:round;
  transform-box:fill-box;transform-origin:50% 0%;
  animation:prv-springSquash 3.2s ease-in-out infinite;
}
@keyframes prv-springSquash{
  0%,100%{transform:scaleY(1)}
  50%    {transform:scaleY(.7)}
}

body[data-topic="pressure-reducing-valve"] .poppet{
  fill:#475569;stroke:#1e293b;stroke-width:2;stroke-linejoin:round;
  animation:poppetMove 3.2s ease-in-out infinite;
  transform-box:fill-box;transform-origin:50% 50%;
}
@keyframes poppetMove{
  0%,100%{transform:translateY(0)}
  50%    {transform:translateY(-6px)}
}
body[data-topic="pressure-reducing-valve"] .poppet-tip{fill:#ef4444;stroke:#991b1b;stroke-width:1.5;}
body[data-topic="pressure-reducing-valve"] .stem{fill:#64748b;stroke:#334155;stroke-width:1.5;}

body[data-topic="pressure-reducing-valve"] .screw{fill:#94a3b8;stroke:#475569;stroke-width:2;stroke-linejoin:round;}
body[data-topic="pressure-reducing-valve"] .screw-slot{stroke:#334155;stroke-width:2;stroke-linecap:round;}

body[data-topic="pressure-reducing-valve"] .p-label{font-size:16px;font-weight:700;text-anchor:middle;
           font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;}
body[data-topic="pressure-reducing-valve"] .p-high{fill:#ea580c;}
body[data-topic="pressure-reducing-valve"] .p-low {fill:#0891b2;}

@media (prefers-reduced-motion:reduce){
  body[data-topic="pressure-reducing-valve"] .flow,
  body[data-topic="pressure-reducing-valve"] .diaphragm,
  body[data-topic="pressure-reducing-valve"] .spring,
  body[data-topic="pressure-reducing-valve"] .poppet{animation:none;}
  body[data-topic="pressure-reducing-valve"] .poppet{transform:translateY(-6px);}
}