gtm {
  --g-pri: #00f3ff;
  --g-sec: #ff003c;
  --g-bg: #0f0f11;
  --g-txt: #e0e0e0;
  --g-brd: rgba(0, 243, 255, 0.3);
  display: block;
  font-family: "Noto Serif SC", "Microsoft YaHei", serif;
  background: linear-gradient(135deg, rgba(15,15,17,0.95) 0%, rgba(25,25,30,0.95) 100%);
  background-image: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,243,255,0.02) 2px, rgba(0,243,255,0.02) 4px);
  color: var(--g-txt);
  border: 1px solid #333;
  border-radius: 4px;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.8), inset 0 0 20px rgba(0, 243, 255, 0.05);
  padding: 10px;
  margin: 10px 0;
  font-size: 14px;
  line-height: 1.6;
  position: relative;
  overflow: hidden;
}
gtm::before {
  content: "";
  position: absolute;
  top: 0; left: 0; width: 4px; height: 100%;
  background: linear-gradient(to bottom, var(--g-pri), var(--g-sec));
}
gtm hd {
  display: block;
  text-align: center;
  font-size: 12px;
  color: var(--g-pri);
  background: rgba(0, 243, 255, 0.08);
  padding: 4px 8px;
  border-bottom: 1px dashed var(--g-brd);
  margin: -10px -10px 10px -10px;
  letter-spacing: 1px;
  text-shadow: 0 0 5px var(--g-pri);
}
gtm article {
  padding: 0 4px 10px 4px;
  color: #d0d0d0;
  text-align: justify;
}
gtm article p {
  margin-bottom: 8px;
}
gtm details {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid #222;
  border-left: 2px solid var(--g-pri);
  border-radius: 0 4px 4px 0;
  margin-top: 5px;
  transition: all 0.3s ease;
}
gtm details[open] {
  border-color: var(--g-brd);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}
gtm summary {
  cursor: pointer;
  padding: 8px 10px;
  font-weight: bold;
  color: var(--g-pri);
  background: linear-gradient(90deg, rgba(0,243,255,0.1) 0%, transparent 100%);
  list-style: none;
  font-size: 13px;
  display: flex;
  align-items: center;
  transition: 0.2s;
}
gtm summary::-webkit-details-marker { display: none; }
gtm summary::before {
  content: "▶";
  font-size: 10px;
  margin-right: 8px;
  color: var(--g-sec);
  transition: transform 0.3s;
}
gtm details[open] summary::before {
  transform: rotate(90deg);
}
gtm summary:hover {
  text-shadow: 0 0 8px var(--g-pri);
  background: linear-gradient(90deg, rgba(0,243,255,0.2) 0%, transparent 100%);
}
gtm p[t] {
  margin: 10px;
  padding: 8px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.05);
}
gtm p[t]::before {
  content: "【 " attr(t) " 】";
  display: block;
  font-size: 12px;
  color: var(--g-sec);
  margin-bottom: 6px;
  border-bottom: 1px solid rgba(255,0,60,0.3);
  padding-bottom: 2px;
  font-weight: bold;
}
gtm f {
  font-weight: bold;
  color: #fff;
  font-size: 15px;
  text-shadow: 0 0 5px rgba(255,255,255,0.5);
  margin-right: 8px;
}
gtm d {
  display: block;
  font-size: 12px;
  color: #bbb;
  margin-bottom: 4px;
  padding-left: 6px;
  position: relative;
}
gtm d::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--g-pri);
}
gtm d.dev {
  background: repeating-linear-gradient(45deg, rgba(255,0,60,0.1) 0px, rgba(255,0,60,0.1) 5px, transparent 5px, transparent 10px);
  color: #ff6b81;
  border-left: 2px solid var(--g-sec);
  padding: 4px 6px;
  font-weight: bold;
  animation: gtmFlicker 3s infinite alternate;
}
gtm d.dev::before { display: none; }
@keyframes gtmFlicker {
  0%, 100% { opacity: 1; text-shadow: 0 0 5px var(--g-sec); }
  50% { opacity: 0.7; text-shadow: none; }
}
gtm tg {
  display: inline-block;
  padding: 1px 5px;
  border-radius: 2px;
  font-size: 11px;
  font-weight: bold;
  margin: 1px 2px;
  border: 1px solid;
  background: rgba(0,0,0,0.5);
}
gtm tg[q="gold"] { border-color: #ffd700; color: #ffd700; text-shadow: 0 0 5px rgba(255,215,0,0.6); box-shadow: inset 0 0 5px rgba(255,215,0,0.3); }
gtm tg[q="purple"] { border-color: #b026ff; color: #b026ff; text-shadow: 0 0 5px rgba(176,38,255,0.6); }
gtm tg[q="blue"] { border-color: #0088ff; color: #0088ff; }
gtm tg[q="green"] { border-color: #00ff00; color: #00ff00; }
gtm tg[q="white"] { border-color: #aaa; color: #aaa; }
gtm p[t="行动抉择"] d {
  cursor: pointer;
  background: rgba(0,243,255,0.05);
  border: 1px solid transparent;
  padding: 4px 8px;
  margin-bottom: 5px;
  border-radius: 2px;
  transition: 0.2s;
}
gtm p[t="行动抉择"] d:hover {
  background: rgba(0,243,255,0.15);
  border-color: var(--g-pri);
  color: #fff;
  transform: translateX(3px);
}
gtm p[t="行动抉择"] d::before { display: none; }