/* 星际导航 · 前台右键菜单（v64） */
.nav-rm {
  position: fixed;
  z-index: 99998;
  min-width: 168px;
  max-width: 260px;
  padding: 6px;
  border-radius: 14px;
  border: 1px solid var(--card-border, rgba(0, 0, 0, .08));
  background: var(--panel, #fff);
  box-shadow: 0 18px 48px rgba(15, 23, 42, .18), 0 2px 10px rgba(15, 23, 42, .08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  opacity: 0;
  visibility: hidden;
  transform: scale(.96) translateY(-2px);
  transform-origin: top left;
  transition: opacity .12s ease, transform .12s ease, visibility .12s;
  user-select: none;
  -webkit-user-select: none;
}
.nav-rm.on {
  opacity: 1;
  visibility: visible;
  transform: scale(1) translateY(0);
}
.nav-rm-hd {
  padding: 8px 10px 7px;
  margin-bottom: 2px;
  border-bottom: 1px solid var(--card-border, rgba(0, 0, 0, .07));
}
.nav-rm-hd b {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--text, #1c1f27);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-rm-hd em {
  display: block;
  margin-top: 2px;
  font-style: normal;
  font-size: 11px;
  color: var(--muted, #9aa2ae);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-rm-it {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 11px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: var(--text, #1c1f27);
  font-size: 13px;
  line-height: 1.2;
  text-align: left;
  cursor: pointer;
  transition: background .14s ease, color .14s ease;
}
.nav-rm-it i {
  flex: none;
  width: 16px;
  text-align: center;
  font-size: 14px;
  color: var(--muted, #8b93a1);
  transition: color .14s ease;
}
.nav-rm-it span {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-rm-it:hover {
  background: var(--primary-light, rgba(99, 102, 241, .12));
  color: var(--accent, #6366f1);
}
.nav-rm-it:hover i { color: var(--accent, #6366f1); }
.nav-rm-it:active { transform: scale(.985); }
.nav-rm-sep {
  height: 1px;
  margin: 4px 8px;
  background: var(--card-border, rgba(0, 0, 0, .07));
}

/* 弹窗（复制说明 / 二维码） */
.nav-rm-pop {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(12, 16, 28, .46);
  opacity: 0;
  visibility: hidden;
  transition: opacity .18s ease, visibility .18s;
}
.nav-rm-pop.on { opacity: 1; visibility: visible; }
.nav-rm-pop-box {
  width: min(440px, 92vw);
  max-height: min(76vh, 560px);
  display: flex;
  flex-direction: column;
  border-radius: 16px;
  border: 1px solid var(--card-border, rgba(255, 255, 255, .12));
  background: var(--panel-solid, #fff);
  box-shadow: 0 24px 70px rgba(8, 12, 24, .32);
  transform: translateY(8px) scale(.98);
  transition: transform .2s cubic-bezier(.22, 1, .36, 1);
  overflow: hidden;
}
.nav-rm-pop.on .nav-rm-pop-box { transform: translateY(0) scale(1); }
.nav-rm-pop-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--card-border, rgba(0, 0, 0, .07));
}
.nav-rm-pop-hd b {
  font-size: 14px;
  color: var(--text, #1c1f27);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-rm-pop-x {
  flex: none;
  width: 28px;
  height: 28px;
  border: 0;
  border-radius: 9px;
  background: var(--surface-2, rgba(0, 0, 0, .05));
  color: var(--muted, #8b93a1);
  cursor: pointer;
}
.nav-rm-pop-x:hover { color: var(--accent, #6366f1); }
.nav-rm-pop-bd {
  padding: 16px;
  overflow: auto;
  color: var(--text-2, #5b6270);
  font-size: 13px;
  line-height: 1.75;
  word-break: break-word;
}
.nav-rm-qr .nav-rm-pop-bd { text-align: center; }
.nav-rm-qr-img {
  width: 176px;
  height: 176px;
  margin: 0 auto 10px;
  border-radius: 12px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.nav-rm-qr-img img, .nav-rm-qr-img canvas { display: block; }
.nav-rm-qr p { margin: 0; font-size: 12px; color: var(--muted, #8b93a1); word-break: break-all; }

@media (max-width: 640px) {
  .nav-rm { min-width: 150px; max-width: 74vw; border-radius: 16px; padding: 8px; }
  .nav-rm-it { padding: 12px 12px; font-size: 13.5px; }
  .nav-rm-pop { padding: 14px; }
}