/* ============ 基础 ============ */
:root{
  --bg:#eef2f7;
  --panel:#ffffff;
  --panel-2:#f7f9fc;
  --line:#e2e8f0;
  --line-2:#cfd8e3;
  --txt:#1f2937;
  --txt-2:#5b6775;
  --txt-3:#93a1b1;
  --brand:#1f6feb;
  --brand-2:#e8f1ff;
  --accent:#f59e0b;
  --ok:#12a150;
  --shadow:0 1px 2px rgba(16,24,40,.04),0 8px 24px rgba(16,24,40,.06);
  --r:10px;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",system-ui,sans-serif;
  color:var(--txt);background:var(--bg);
  overflow:hidden;-webkit-font-smoothing:antialiased;
}
button,input,select{font-family:inherit;color:inherit}
kbd{
  display:inline-block;padding:1px 6px;border:1px solid var(--line-2);border-bottom-width:2px;
  border-radius:5px;background:#fff;font-size:11px;color:var(--txt-2);
}

#app{
  height:100vh;display:grid;
  grid-template-columns:288px 1fr 340px;
  grid-template-rows:56px 1fr;
  grid-template-areas:"top top top" "left main right";
}

/* ============ 顶栏 ============ */
.topbar{
  grid-area:top;display:flex;align-items:center;gap:14px;
  padding:0 16px;background:#fff;border-bottom:1px solid var(--line);z-index:20;
}
.brand{display:flex;align-items:center;gap:10px;min-width:230px}
.logo{
  width:30px;height:30px;border-radius:8px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#4b93ff);color:#fff;font-weight:800;font-size:13px;letter-spacing:.5px;
  box-shadow:0 4px 10px rgba(31,111,235,.28);
}
.brand-txt{display:flex;flex-direction:column;line-height:1.25}
.brand-txt b{font-size:14px}
.brand-txt i{font-style:normal;font-size:11px;color:var(--txt-3)}

.tools{display:flex;align-items:center;gap:10px;flex-wrap:wrap;overflow:hidden}
.seg{display:flex;align-items:center;gap:6px;padding-right:10px;border-right:1px solid var(--line)}
.seg:last-child{border-right:none}
.seg-label{font-size:11px;color:var(--txt-3);margin-right:2px;white-space:nowrap}
.btn{
  height:32px;padding:0 12px;border:1px solid var(--line-2);border-radius:8px;background:#fff;
  font-size:13px;cursor:pointer;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;
  transition:.15s;
}
.btn:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-2)}
.btn:active{transform:translateY(1px)}
.btn.on{border-color:var(--brand);background:var(--brand);color:#fff}
.btn-primary{border-color:var(--brand);background:var(--brand);color:#fff}
.btn-primary:hover{background:#185ecc;color:#fff;border-color:#185ecc}
.sel{height:32px;border:1px solid var(--line-2);border-radius:8px;background:#fff;padding:0 6px;font-size:13px;cursor:pointer}
.ico-play{
  width:0;height:0;border-left:8px solid currentColor;border-top:5px solid transparent;border-bottom:5px solid transparent;
}
.ico-pause{width:8px;height:10px;border-left:3px solid currentColor;border-right:3px solid currentColor}
.only-narrow{display:none}

/* ============ 通用面板 ============ */
.panel{
  background:var(--panel);display:flex;flex-direction:column;min-height:0;z-index:15;
}
.panel-left{grid-area:left;border-right:1px solid var(--line)}
.panel-right{grid-area:right;border-left:1px solid var(--line)}
.panel-head{padding:12px 12px 10px;border-bottom:1px solid var(--line);background:var(--panel)}
.panel-head h3{margin:0 0 10px;font-size:13px;letter-spacing:.5px;display:flex;align-items:center;gap:6px}
.count{
  font-size:11px;color:var(--brand);background:var(--brand-2);
  padding:1px 7px;border-radius:20px;font-weight:700;
}
.row{display:flex;gap:6px;align-items:center}
.row-mini{margin-top:8px;flex-wrap:wrap}
.search{
  flex:1;height:32px;border:1px solid var(--line-2);border-radius:8px;padding:0 10px;font-size:13px;outline:none;background:#fff;
}
.search:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,111,235,.12)}
.mini{
  height:26px;padding:0 9px;font-size:12px;border:1px solid var(--line-2);background:#fff;
  border-radius:6px;cursor:pointer;color:var(--txt-2);
}
.mini:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-2)}
.mini.on{background:var(--brand);border-color:var(--brand);color:#fff}
.panel-body{flex:1;overflow:auto;padding:8px}
.panel-body::-webkit-scrollbar{width:8px}
.panel-body::-webkit-scrollbar-thumb{background:#d7dfe9;border-radius:8px;border:2px solid #fff}
.panel-body::-webkit-scrollbar-thumb:hover{background:#bcc9d8}

/* ============ 部件清单 ============ */
.group-title{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 6px 6px;font-size:11px;color:var(--txt-3);letter-spacing:1px;font-weight:700;
}
.group-title span.n{font-weight:400}
.item{
  display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:8px;cursor:pointer;
  border:1px solid transparent;transition:.12s;
}
.item:hover{background:var(--panel-2);border-color:var(--line)}
.item.active{background:var(--brand-2);border-color:#bcd6ff}
.item.hidden-part .item-name{color:var(--txt-3);text-decoration:line-through}
.item input{accent-color:var(--brand);cursor:pointer;width:14px;height:14px;margin:0}
.dot{width:10px;height:10px;border-radius:3px;flex:none;box-shadow:inset 0 0 0 1px rgba(0,0,0,.12)}
.item-name{flex:1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.item-eye{font-size:11px;color:var(--txt-3)}
.item.sel .item-name{color:var(--brand);font-weight:700}
.item.inactive{opacity:.42}
.item.inactive .item-name{font-style:italic}
.item.inactive input{cursor:not-allowed}
.tag-v{
  font-size:10px;color:var(--accent);background:#fff6e6;border:1px solid #f3dcb0;
  border-radius:4px;padding:0 4px;line-height:15px;flex:none;
}
.no-result{padding:20px;text-align:center;color:var(--txt-3);font-size:12px}

/* ============ 视口 ============ */
.viewport{grid-area:main;position:relative;overflow:hidden;background:radial-gradient(120% 120% at 50% 0%,#ffffff 0%,#e9eef5 55%,#dde5ef 100%)}
#canvasWrap{position:absolute;inset:0}
#canvasWrap canvas{display:block;outline:none}

.hud-top{position:absolute;top:12px;left:12px;display:flex;gap:8px;flex-wrap:wrap;pointer-events:none;z-index:5}
.chip{
  background:rgba(255,255,255,.86);backdrop-filter:blur(6px);border:1px solid var(--line);
  border-radius:20px;padding:5px 12px;font-size:12px;color:var(--txt-2);box-shadow:var(--shadow);
}
.chip b{color:var(--brand)}

.hud-bottom{
  position:absolute;left:12px;right:12px;bottom:12px;display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.86);backdrop-filter:blur(6px);border:1px solid var(--line);
  border-radius:12px;padding:10px 14px;box-shadow:var(--shadow);z-index:5;
}
.slider-box{display:flex;align-items:center;gap:10px;flex:1;min-width:220px}
.slider-box label{font-size:12px;color:var(--txt-2);white-space:nowrap}
#explodeSlider{
  flex:1;height:4px;-webkit-appearance:none;appearance:none;border-radius:4px;
  background:linear-gradient(90deg,var(--brand) 0%,var(--brand) var(--p,0%),#dfe6ef var(--p,0%));
  outline:none;cursor:pointer;
}
#explodeSlider::-webkit-slider-thumb{
  -webkit-appearance:none;width:16px;height:16px;border-radius:50%;background:#fff;
  border:3px solid var(--brand);box-shadow:0 2px 6px rgba(31,111,235,.4);cursor:grab;
}
#explodeSlider::-moz-range-thumb{width:14px;height:14px;border-radius:50%;background:#fff;border:3px solid var(--brand)}
#explodeVal{font-size:12px;color:var(--brand);font-weight:700;width:40px;text-align:right}
.tip{font-size:11px;color:var(--txt-3);white-space:nowrap}

.tooltip{
  position:absolute;pointer-events:none;padding:5px 10px;background:rgba(31,41,55,.92);color:#fff;
  font-size:12px;border-radius:6px;transform:translate(-50%,-140%);opacity:0;transition:opacity .12s;z-index:30;white-space:nowrap;
}
.tooltip.show{opacity:1}
.tag3d{
  position:absolute;pointer-events:none;padding:4px 10px;background:rgba(255,255,255,.94);
  border:1px solid var(--brand);color:var(--brand);font-size:12px;font-weight:700;border-radius:6px;
  transform:translate(-50%,-50%);opacity:0;transition:opacity .15s;z-index:25;box-shadow:0 4px 12px rgba(31,111,235,.2)
}
.tag3d.show{opacity:1}

.loading{position:absolute;inset:0;display:grid;place-items:center;gap:14px;background:var(--bg);z-index:40;transition:opacity .4s}
.loading p{margin:0;font-size:13px;color:var(--txt-2)}
.spinner{
  width:34px;height:34px;border:3px solid #dbe3ec;border-top-color:var(--brand);border-radius:50%;
  animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============ 详情面板 ============ */
.detail-hero{
  border:1px solid var(--line);border-radius:var(--r);background:var(--panel-2);
  padding:10px;margin-bottom:10px;text-align:center;
}
.detail-hero svg{width:100%;height:auto;max-height:132px}
.detail-title{font-size:16px;font-weight:800;margin:0 0 4px}
.detail-sub{font-size:11px;color:var(--txt-3);letter-spacing:.5px;margin-bottom:8px}
.detail-group{
  display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;background:var(--brand-2);color:var(--brand);font-weight:700;
}
.sec{margin-bottom:12px}
.sec h4{
  margin:0 0 6px;font-size:12px;color:var(--txt-2);letter-spacing:.5px;
  display:flex;align-items:center;gap:6px;
}
.sec h4::before{content:"";width:3px;height:12px;border-radius:2px;background:var(--brand)}
.sec p{margin:0;font-size:13px;line-height:1.85;color:var(--txt);text-align:justify}
.brief{
  background:linear-gradient(90deg,#fff8ec,#fffdf8);border:1px solid #f6e3c0;border-left:3px solid var(--accent);
  border-radius:6px;padding:8px 10px;font-size:12.5px;line-height:1.7;color:#7a5210;margin-bottom:12px;
}
.spec{width:100%;border-collapse:collapse;font-size:12px}
.spec td{border-bottom:1px dashed var(--line);padding:6px 4px;vertical-align:top}
.spec td:first-child{color:var(--txt-3);width:38%;white-space:nowrap}
.spec td:last-child{color:var(--txt)}
.empty{padding:26px 14px;text-align:center;color:var(--txt-2)}
.empty p{margin:6px 0;font-size:13px}
.empty .dim{font-size:12px;color:var(--txt-3);line-height:1.8}
.empty-ico{
  width:56px;height:56px;margin:0 auto 12px;border-radius:14px;border:2px dashed var(--line-2);
  display:grid;place-items:center;position:relative;
}
.empty-ico::after{content:"";width:22px;height:22px;border:3px solid #cbd6e3;border-radius:4px;transform:rotate(45deg)}
.legend{
  margin-top:18px;padding-top:12px;border-top:1px dashed var(--line);font-size:12px;color:var(--txt-2);text-align:left;
}
.legend p{margin:5px 0}
.legend p:first-child{margin-bottom:8px;color:var(--txt)}

/* ============ 窄屏适配 ============ */
@media (max-width:1180px){
  #app{grid-template-columns:250px 1fr 300px}
}
@media (max-width:980px){
  #app{grid-template-columns:1fr;grid-template-rows:56px 1fr;grid-template-areas:"top" "main"}
  .panel{
    position:absolute;top:56px;bottom:0;width:290px;box-shadow:0 0 40px rgba(16,24,40,.18);
    transition:transform .25s;z-index:30;
  }
  .panel-left{left:0;transform:translateX(-102%)}
  .panel-right{right:0;width:320px;transform:translateX(102%)}
  .panel.open{transform:translateX(0)}
  .only-narrow{display:inline-flex;margin-left:auto}
  .tools .seg:nth-child(n+4){display:none}
  .seg-label{display:none}
  .tip{display:none}
}