/* =========================================================
   浮动小组件 · FLOATING WIDGETS
   齿轮 / 雷达 / 二维码 / 在线状态 / 回到顶部 / KOOK
   ========================================================= */
.fw{position:fixed;z-index:90;display:flex;flex-direction:column;gap:12px}
.fw-right{right:20px;bottom:96px}
.fw-bottom{left:50%;bottom:22px;transform:translateX(-50%);flex-direction:row}

.fw-btn{
  position:relative;width:46px;height:46px;border-radius:12px;cursor:pointer;
  border:1px solid var(--line-3);background:rgba(11,11,11,.86);
  backdrop-filter:blur(10px);display:grid;place-items:center;
  transition:.3s cubic-bezier(.2,.7,.3,1);box-shadow:0 6px 20px rgba(0,0,0,.45);
}
.fw-btn:hover{border-color:var(--silver-2);transform:translateY(-3px) scale(1.04);
  box-shadow:0 12px 28px rgba(0,0,0,.55),0 0 18px rgba(232,234,237,.12)}
.fw-btn svg{width:20px;height:20px;fill:none;stroke:var(--silver-2);stroke-width:1.6;transition:.3s}
.fw-btn:hover svg{stroke:var(--silver)}

/* 在线状态点 */
.fw-dot{position:absolute;top:7px;right:7px;width:7px;height:7px;border-radius:50%;background:var(--silver-2);
  box-shadow:0 0 6px var(--silver-2);animation:fwPulse 2s infinite}
@keyframes fwPulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.6)}}

/* 齿轮：持续慢转 */
.fw-gear svg{animation:fwSpin 14s linear infinite}
.fw-gear:hover svg{animation-duration:.8s}
@keyframes fwSpin{to{transform:rotate(360deg)}}

/* 回到顶部 */
.fw-top{opacity:0;pointer-events:none;transform:translateY(12px);transition:.35s}
.fw-top.is-show{opacity:1;pointer-events:auto;transform:translateY(0)}
.fw-top svg{stroke:#aeb4bd;stroke-width:2;transition:transform .3s,stroke .3s}
.fw-top:hover svg{stroke:#d1d5db;transform:translateY(-2px)}

/* ---- 弹出面板 ---- */
.fw-pop{
  position:absolute;right:0;bottom:58px;width:260px;padding:16px 18px;
  background:rgba(10,10,10,.96);border:1px solid var(--line-2);border-radius:12px;
  box-shadow:0 20px 60px rgba(0,0,0,.65);text-align:left;
  opacity:0;transform:translateY(10px) scale(.97);transform-origin:bottom right;
  pointer-events:none;transition:.25s cubic-bezier(.2,.7,.3,1);
}
.fw-btn.is-open .fw-pop{opacity:1;transform:none;pointer-events:auto}
.fw-pop-h{font-family:var(--mono);font-size:10px;color:var(--silver-3);letter-spacing:1.6px;margin-bottom:10px}
.fw-pop-line{font-size:12.5px;color:var(--silver);margin:6px 0;display:flex;justify-content:space-between;gap:10px}
.fw-pop-line b{color:var(--steel-2);font-family:var(--mono);font-weight:600}
.fw-pop-foot{margin-top:12px;padding-top:10px;border-top:1px solid var(--line);font-size:11px;color:var(--silver-4);line-height:1.7}

/* QR 占位 */
.fw-qr{width:100%;aspect-ratio:1;border:1px solid var(--line-2);border-radius:8px;
  background:
    linear-gradient(45deg,var(--line-2) 25%,transparent 25%) -4px 0/8px 8px,
    linear-gradient(-45deg,var(--line-2) 25%,transparent 25%) -4px 0/8px 8px,
    linear-gradient(45deg,transparent 75%,var(--line-2) 75%) 0 0/8px 8px,
    linear-gradient(-45deg,transparent 75%,var(--line-2) 75%) 0 0/8px 8px,
    #0a0a0a;margin:10px 0}

/* 雷达微型 */
.fw-mini{width:100%;aspect-ratio:1;border-radius:50%;position:relative;
  border:1px solid var(--line-2);background:radial-gradient(circle,rgba(232,234,237,.1),rgba(10,10,10,.9) 72%);
  overflow:hidden;margin:8px 0}
.fw-mini::before{content:'';position:absolute;inset:18%;border-radius:50%;border:1px dashed rgba(184,188,196,.3)}
.fw-mini-i{position:absolute;inset:0;background:
  linear-gradient(90deg,transparent calc(50% - .5px),rgba(184,188,196,.28) 0 calc(50% + .5px),transparent 0),
  linear-gradient(0deg,transparent calc(50% - .5px),rgba(184,188,196,.28) 0 calc(50% + .5px),transparent 0)}
.fw-mini-s{position:absolute;inset:0;border-radius:50%;overflow:hidden}
.fw-mini-s::before{content:'';position:absolute;left:50%;top:50%;width:50%;height:50%;
  background:conic-gradient(from 0deg,rgba(232,234,237,.55),transparent 60deg);
  transform-origin:0 0;animation:fwSweep 3s linear infinite}
@keyframes fwSweep{to{transform:rotate(360deg)}}
.fw-mini-b{position:absolute;width:5px;height:5px;border-radius:50%;background:var(--silver);box-shadow:0 0 6px var(--silver)}
.fw-mini-b:nth-child(4){left:32%;top:34%}
.fw-mini-b:nth-child(5){left:64%;top:30%}
.fw-mini-b:nth-child(6){left:56%;top:64%}

/* 底部横向条 */
.fw-chip{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:19px;cursor:pointer;
  border:1px solid var(--line-3);background:rgba(11,11,11,.86);backdrop-filter:blur(10px);
  font-size:12px;color:var(--silver-2);transition:.3s;white-space:nowrap;
}
.fw-chip:hover{border-color:var(--silver-2);color:var(--silver);transform:translateY(-2px)}
.fw-chip i{width:6px;height:6px;border-radius:50%;background:var(--silver-2);box-shadow:0 0 5px var(--silver-2);animation:fwPulse 2s infinite}
.fw-chip.blue{color:var(--steel-2);border-color:rgba(138,155,178,.35)}

@media(max-width:640px){
  .fw-right{right:12px;bottom:84px;gap:10px}
  .fw-btn{width:42px;height:42px}
  .fw-pop{width:230px}
  .fw-bottom{left:12px;right:12px;transform:none;overflow-x:auto;flex-wrap:nowrap;justify-content:flex-start;
    -webkit-overflow-scrolling:touch;padding-bottom:2px}
  .fw-bottom::-webkit-scrollbar{display:none}
}