/* wu-fifteen 补充样式 — 仅 ABABSEO 标识（其余样式使用目标站 index.css） */

.ababseo-mark {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin-top: 0.75rem;
  user-select: none;
  pointer-events: none;
}

.ababseo-mark__scene {
  position: relative;
  width: 3.25rem;
  height: 1.5rem;
  flex-shrink: 0;
}

.ababseo-mark__contrail {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  gap: 3px;
  opacity: 0.55;
}

.ababseo-mark__contrail i {
  display: block;
  width: 6px;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, transparent, #22d3ee);
  animation: ababseo-trail 1.8s ease-in-out infinite;
}

.ababseo-mark__contrail i:nth-child(2) { animation-delay: 0.15s; opacity: 0.8; }
.ababseo-mark__contrail i:nth-child(3) { animation-delay: 0.3s; opacity: 0.6; }
.ababseo-mark__contrail i:nth-child(4) { animation-delay: 0.45s; opacity: 0.4; }

.ababseo-mark__plane {
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  color: #22d3ee;
  animation: ababseo-fly 2.4s ease-in-out infinite;
  filter: drop-shadow(0 0 6px rgba(34, 211, 238, 0.45));
}

.ababseo-mark__spark {
  position: absolute;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: #a5f3fc;
  opacity: 0;
  animation: ababseo-spark 2.4s ease-in-out infinite;
}

.ababseo-mark__spark--1 { left: 28%; top: 20%; animation-delay: 0.4s; }
.ababseo-mark__spark--2 { left: 42%; top: 72%; animation-delay: 0.9s; }
.ababseo-mark__spark--3 { left: 58%; top: 35%; animation-delay: 1.3s; }

.ababseo-mark__word {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  background: linear-gradient(92deg, #22d3ee 0%, #818cf8 45%, #e879f9 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ababseo-mark--footer {
  margin-top: 1rem;
  justify-content: flex-start;
}

@keyframes ababseo-fly {
  0%, 100% { transform: translateY(-50%) translateX(0) rotate(-8deg); }
  50% { transform: translateY(-58%) translateX(-4px) rotate(-4deg); }
}

@keyframes ababseo-trail {
  0%, 100% { opacity: 0.25; transform: scaleX(0.7); }
  50% { opacity: 1; transform: scaleX(1); }
}

@keyframes ababseo-spark {
  0%, 70%, 100% { opacity: 0; transform: scale(0.5); }
  78% { opacity: 1; transform: scale(1.2); }
}