/* ============ 启动页 ============ */
body.splash-lock { overflow: hidden; }

.splash {
  position: fixed; inset: 0; z-index: 9999;
  background: radial-gradient(1200px 700px at 50% 30%, #0d2137 0%, #081527 55%, #050e1b 100%);
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
  transition: opacity .6s ease, visibility .6s;
}
.splash.hide { opacity: 0; visibility: hidden; pointer-events: none; }

/* 背景光斑 */
.splash-glow {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle, rgba(41,112,192,.4) 0%, rgba(41,112,192,0) 70%);
  filter: blur(6px);
  animation: splashFloat 7s ease-in-out infinite alternate;
}
.splash-glow.g1 { width: 260px; height: 260px; top: 18%; left: 46%; }
.splash-glow.g2 { width: 120px; height: 120px; top: 26%; left: 36%; animation-delay: -2s; }
.splash-glow.g3 { width: 180px; height: 180px; top: 30%; right: 10%; animation-delay: -4s; }
.splash-glow.g4 { width: 90px; height: 90px; bottom: 22%; left: 18%; animation-delay: -1s; }
.splash-glow.g5 { width: 140px; height: 140px; bottom: 12%; right: 22%; animation-delay: -3s; }
@keyframes splashFloat {
  from { transform: translateY(0) scale(1); opacity: .7; }
  to   { transform: translateY(-26px) scale(1.12); opacity: 1; }
}

/* 跳过按钮 */
.splash-skip {
  position: absolute; top: 22px; right: 26px;
  padding: 7px 16px; border-radius: 8px;
  border: 1px solid rgba(255,255,255,.25);
  background: rgba(255,255,255,.06); color: rgba(255,255,255,.7);
  font-size: 13px; cursor: pointer; transition: all .25s;
}
.splash-skip:hover { background: rgba(255,255,255,.14); color: #fff; }

/* 主体内容 */
.splash-inner {
  position: relative; text-align: center; padding: 0 24px;
  max-width: 820px;
}
.splash-brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: rgba(255,255,255,.8); font-size: 14px; letter-spacing: 3px; font-weight: 600;
  animation: splashUp .7s .1s both;
}
.splash-brand svg { width: 22px; height: 22px; }
.splash-mark {
  margin: 34px 0 18px; font-size: 26px; line-height: 1; color: #5f9bd8;
  font-weight: 800; letter-spacing: 2px;
  animation: splashUp .7s .25s both;
}
.splash-text {
  color: #fff; font-size: clamp(22px, 3vw, 34px); font-weight: 700;
  line-height: 1.65; letter-spacing: 1px;
  text-shadow: 0 4px 24px rgba(41,112,192,.35);
  animation: splashUp .7s .4s both;
}
.splash-author {
  margin-top: 22px; color: rgba(255,255,255,.55); font-size: 14px;
  animation: splashUp .7s .55s both;
}
.splash-enter {
  margin-top: 44px; padding: 13px 64px; border: none; border-radius: 8px;
  background: linear-gradient(120deg, #3d85d6 0%, #2970C0 60%, #1B4F8F 100%);
  color: #fff; font-size: 16px; font-weight: 700; letter-spacing: 4px; cursor: pointer;
  box-shadow: 0 10px 30px rgba(41,112,192,.45);
  transition: transform .25s, box-shadow .25s;
  animation: splashUp .7s .7s both;
}
.splash-enter:hover { transform: translateY(-2px); box-shadow: 0 14px 36px rgba(41,112,192,.6); }
.splash-count {
  margin-top: 16px; color: rgba(255,255,255,.45); font-size: 12.5px;
  animation: splashUp .7s .85s both;
}
@keyframes splashUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

@media (max-width: 640px) {
  .splash-text { font-size: 20px; }
  .splash-enter { padding: 12px 48px; }
}