/* PCB 外殼生成器（/pcb-case/）：沿用 seo.css 色票；工具區撐滿寬度，左參數右 3D */
.pc-wrap{width:min(1400px,calc(100vw - 32px));margin:24px 0 0 50%;transform:translateX(-50%)}
.pc-shell{display:grid;grid-template-columns:minmax(330px,400px) minmax(0,1fr);gap:14px;align-items:start}
.pc-side{background:var(--titan);border:1px solid var(--edge);border-radius:14px;padding:12px;max-height:calc(100vh - 90px);overflow:auto;position:sticky;top:70px;font-size:14px;line-height:1.5}
.pc-stage{position:sticky;top:70px;display:flex;flex-direction:column;gap:8px;min-width:0}
.pc-canvas{position:relative;height:calc(100vh - 150px);min-height:420px;background:radial-gradient(circle at 50% 35%,#1d2129,#0b0d10);border:1px solid var(--edge);border-radius:14px;overflow:hidden;touch-action:none}
.pc-canvas canvas{display:block;width:100%;height:100%}
.pc-hint{position:absolute;left:12px;bottom:8px;margin:0;font-size:12px;color:var(--t2);pointer-events:none}
.pc-dims{position:absolute;right:12px;top:10px;font:12px/1.5 ui-monospace,Menlo,monospace;color:var(--t2);text-align:right;pointer-events:none}
.pc-msg{position:absolute;left:50%;top:12px;transform:translateX(-50%);font-size:13px;background:rgba(15,17,21,.85);border:1px solid var(--edge);border-radius:8px;padding:4px 12px}
.pc-msg:empty{display:none}
#pc-clip{position:absolute;right:12px;bottom:34px;width:180px}
.pc-bar{display:flex;flex-wrap:wrap;gap:8px}
.pc-seg{display:flex;border:1px solid var(--edge);border-radius:9px;overflow:hidden}
.pc-seg button,.pc-modes button,.pc-steps button{font:inherit;font-size:13px;background:var(--titan);color:var(--t2);border:0;padding:6px 11px;cursor:pointer}
.pc-seg button+button{border-left:1px solid var(--edge)}
.pc-seg button[aria-pressed=true],.pc-modes button[aria-selected=true]{background:var(--gold);color:#16120A;font-weight:600}
.pc-modes{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--edge);border-radius:10px;overflow:hidden;margin-bottom:10px}
.pc-modes button{padding:9px;font-size:14px}
.pc-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:4px;margin-bottom:12px}
.pc-steps button{border:1px solid var(--edge);border-radius:8px;padding:6px 2px;display:flex;flex-direction:column;align-items:center;gap:2px;font-size:12px;background:transparent}
.pc-steps b{font:600 13px ui-monospace,monospace;width:22px;height:22px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--edge)}
.pc-steps button[aria-selected=true]{color:var(--t1);border-color:var(--gold)}
.pc-steps button[aria-selected=true] b{background:var(--gold);color:#16120A;border-color:var(--gold)}
.pc-panel h3{font-size:15px;margin:14px 0 6px}
.pc-panel input,.pc-panel select,.pc-dialog input,.pc-dialog select,.pc-dialog textarea,.pc-panel textarea{font:inherit;font-size:14px;color:var(--t1);background:var(--space);border:1px solid var(--edge);border-radius:7px;padding:5px 7px;max-width:100%}
.pc-panel input[type=number]{width:74px}
.pc-panel input[type=range]{width:100%;accent-color:var(--gold);padding:0;border:0;background:none}
.pc-panel input[type=checkbox],.pc-panel input[type=radio]{accent-color:var(--gold)}
.pc-f{display:flex;flex-direction:column;gap:3px;margin:8px 0}
.pc-f label{color:var(--t2);font-size:13px;display:flex;justify-content:space-between;gap:8px}
.pc-f output{color:var(--t1);font:12px ui-monospace,monospace}
.pc-f small{color:var(--t2);font-size:12px}
.pc-f select,.pc-f input[type=text],.pc-f textarea{width:100%}
.pc-grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 10px}
.pc-grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.pc-grid3 select,.pc-grid3 input{width:100%}
.pc-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:10px}
.pc-next{margin-top:14px;display:flex;justify-content:flex-end}
.pc-drop{display:flex;flex-direction:column;gap:4px;align-items:center;text-align:center;padding:18px 12px;border:1.5px dashed var(--edge);border-radius:12px;cursor:pointer;position:relative}
.pc-drop:hover,.pc-drop.over{border-color:var(--gold)}
.pc-drop input{position:absolute;width:1px;height:1px;opacity:0}
.pc-drop span{color:var(--t2);font-size:12px}
.pc-card{border:1px solid var(--edge);border-radius:11px;padding:10px 12px;margin:10px 0;background:rgba(255,255,255,.015)}
.pc-card h3{margin-top:0}
.pc-kv{display:grid;grid-template-columns:auto 1fr;gap:3px 12px;font-size:13px}
.pc-kv span{color:var(--t2)}
.pc-kv b{font-weight:500}
.pc-note{font-size:13px;color:#f3c66b;margin:6px 0}
.pc-muted{color:var(--t2)}
.small,.pc-small{font-size:12px}
.pc-det{border-top:1px solid var(--edge);padding:6px 0}
.pc-det summary{cursor:pointer;font-weight:600;padding:4px 0}
.pc-det.pc-sub{border:0;padding-left:6px}
.pc-det.pc-sub summary{font-weight:400;color:var(--t2);font-size:13px}
.pc-list{display:flex;flex-direction:column;gap:2px;max-height:180px;overflow:auto}
.pc-chk{display:flex;gap:6px;align-items:center;font-size:13px;margin:3px 0}
.pc-tbl{max-height:280px;overflow:auto;border:1px solid var(--edge);border-radius:8px}
.pc-tbl table{width:100%;border-collapse:collapse;font-size:12px}
.pc-tbl th{position:sticky;top:0;background:var(--titan);color:var(--t2);font-weight:500;text-align:left;padding:4px}
.pc-tbl td{padding:2px 3px;border-top:1px solid var(--edge)}
.pc-tbl td select{width:76px;font-size:12px;padding:2px}
.pc-tbl td input[type=number]{width:52px;font-size:12px;padding:2px 4px}
.pc-tbl tr.sel td{background:rgba(229,169,60,.12)}
.pc-tbl tr.off td{opacity:.45}
.pc-tbl i{font-style:normal;color:#f3c66b;margin-left:2px}
.pc-link{background:none;border:0;color:var(--gold);cursor:pointer;font:inherit;padding:0;text-decoration:underline}
.pc-x{background:none;border:0;color:var(--t2);cursor:pointer;font-size:16px}
.pc-x:hover{color:#ff6b6b}
.pc-sel{font-size:12px;margin:8px 0;line-height:2}
.pc-sel input{width:58px!important}
.pc-add{margin:8px 0}
.pc-add select{width:100%}
.pc-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}
.pc-pick{cursor:pointer}
.pc-pick input{position:absolute;opacity:0}
.pc-pick span{display:flex;flex-direction:column;gap:2px;border:1px solid var(--edge);border-radius:9px;padding:8px;height:100%}
.pc-pick small{color:var(--t2);font-size:11px;line-height:1.35}
.pc-pick input:checked+span{border-color:var(--gold);background:rgba(229,169,60,.08)}
.pc-pick input:focus-visible+span{outline:2px solid var(--gold)}
.pc-item{border:1px solid var(--edge);border-radius:9px;padding:6px;margin:6px 0}
.pc-parts{width:100%;font-size:12px;border-collapse:collapse}
.pc-parts td,.pc-parts th{padding:3px 4px;border-top:1px solid var(--edge);text-align:left}
.pc-parts th{color:var(--t2);font-weight:500}
.pc-plates{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0}
.pc-plates figure{margin:0;font-size:11px;color:var(--t2);text-align:center}
.pc-plates .bed{fill:#11141a;stroke:var(--edge)}
.pc-plates .pp{fill:rgba(229,169,60,.35);stroke:var(--gold);stroke-width:1}
.pc-dl{display:flex;flex-wrap:wrap;gap:6px}
.pc-dl .btn,.pc-order .btn,.pc-panel .btn,.pc-dialog .btn{font:inherit;font-size:13px;padding:7px 11px;cursor:pointer;background:transparent}
.pc-dl .btn.solid,.pc-order .btn.solid,.pc-panel .btn.solid,.pc-dialog .btn.solid{background:var(--gold);color:#16120A}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.pc-price{display:grid;grid-template-columns:1fr auto;gap:2px 10px;font-size:13px;margin:8px 0}
.pc-price dt{color:var(--t2)}
.pc-price dd{margin:0;text-align:right;font-family:ui-monospace,monospace}
.pc-price .tot,.pc-price .tot+dd{color:var(--t1);font-weight:700;font-size:15px;border-top:1px solid var(--edge);padding-top:4px}
.pc-saved{list-style:none;margin:6px 0;padding:0}
.pc-saved li{display:grid;grid-template-columns:1fr auto;gap:0 8px;padding:5px 0;border-top:1px solid var(--edge)}
.pc-saved small{color:var(--t2);font-size:11px;grid-column:1}
.pc-saved span{grid-row:1/3;grid-column:2;display:flex;gap:4px;align-items:center}
.pc-warn details{background:var(--titan);border:1px solid var(--edge);border-radius:10px;padding:6px 12px;font-size:13px}
.pc-warn summary{cursor:pointer}
.pc-warn ul{margin:6px 0;padding-left:18px;max-height:160px;overflow:auto}
.pc-warn li.err,.pc-warn .err{color:#ff7b7b}
.pc-warn li.warn{color:#f3c66b}
.pc-warn .ok{color:#7bd88f}
.pc-warn li[data-comp]{cursor:pointer}
.pc-modal{position:fixed;inset:0;z-index:50;background:rgba(0,0,0,.55);display:grid;place-items:center;padding:16px}
.pc-modal[hidden]{display:none}
.pc-dialog{background:var(--titan);border:1px solid var(--edge);border-radius:14px;padding:18px 20px;width:min(460px,100%);max-height:90vh;overflow:auto}
.pc-dialog h3{margin:0 0 8px}
.pc-dialog textarea{width:100%;min-height:70px}
@media (max-width:900px){
  .pc-wrap{width:calc(100vw - 20px)}
  .pc-shell{grid-template-columns:1fr}
  .pc-stage{position:sticky;top:66px;z-index:3;order:-1;background:var(--space);padding-bottom:6px}
  .pc-canvas{height:38vh;min-height:240px}
  .pc-side{position:static;max-height:none}
  .pc-cams,.pc-hint{display:none}
  .pc-bar{overflow-x:auto;flex-wrap:nowrap}
  .pc-seg button{padding:5px 8px;white-space:nowrap}
  .pc-warn ul{max-height:90px}
}
@media (max-width:420px){.pc-cards{grid-template-columns:1fr}.pc-grid3{grid-template-columns:1fr 1fr}}
.pc-steps[hidden]{display:none}