/* ============================================================
   Tab2 遇见·内心森林
   ============================================================ */

.tab2-forest {
  position: relative;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(180deg, #2a3a2a 0%, #1a261a 100%);
}

.tab2-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

/* 飘动雾气（远层：稀薄缓慢 / 前景层：浓郁） */
.forest-fog {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 30% at 30% 20%, rgba(220, 240, 220, 0.25), transparent 70%),
    radial-gradient(ellipse 50% 25% at 70% 60%, rgba(200, 220, 220, 0.2), transparent 70%),
    radial-gradient(ellipse 70% 30% at 50% 85%, rgba(200, 200, 220, 0.3), transparent 70%);
  animation: fog-drift 20s ease-in-out infinite alternate;
}

.forest-fog.far-fog {
  opacity: 0.65;
  animation-duration: 32s;
  filter: blur(1px);
}

.forest-fog.near-fog {
  opacity: 0.8;
  animation-duration: 14s;
  background:
    radial-gradient(ellipse 40% 18% at 15% 70%, rgba(225, 245, 230, 0.3), transparent 70%),
    radial-gradient(ellipse 50% 20% at 85% 55%, rgba(215, 235, 240, 0.28), transparent 70%);
  animation-direction: alternate-reverse;
}

/* 森林光柱 */
.forest-beams {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(175deg, rgba(240, 250, 230, 0.16) 0%, rgba(240, 250, 230, 0.04) 55%, transparent 75%),
    linear-gradient(185deg, rgba(255, 250, 235, 0.12) 0%, transparent 60%);
  clip-path: polygon(12% 0, 22% 0, 38% 100%, 26% 100%);
  mix-blend-mode: screen;
  animation: beam-pulse 8s ease-in-out infinite alternate;
}
.forest-beams::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(190deg, rgba(250, 255, 240, 0.14) 0%, transparent 55%);
  clip-path: polygon(70% 0, 82% 0, 96% 100%, 84% 100%);
}

@keyframes beam-pulse {
  0%   { opacity: 0.7; transform: scaleY(0.98); }
  100% { opacity: 1;   transform: scaleY(1.04); }
}

/* 萤火粒子 */
.forest-motes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

@keyframes fog-drift {
  0%   { transform: translateX(0) translateY(0); }
  100% { transform: translateX(-20px) translateY(-10px); }
}

/* 森林物件 */
.forest-objects {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.fobj {
  position: absolute;
  background: var(--c-card-glass);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: var(--pixel-border);
  border-radius: var(--r-md);
  padding: 10px 12px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  pointer-events: auto;
  color: var(--c-text);
  font-family: var(--font-body);
  box-shadow: 0 6px 16px rgba(20, 30, 20, 0.3);
  transition: all 0.2s ease;
  min-width: 70px;
}

.fobj:active { transform: scale(0.92); }

.fobj-icon {
  font-size: 32px;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}

.fobj-name {
  font-size: 12px;
  font-weight: bold;
  letter-spacing: 0.5px;
}

.fobj-mirror {
  bottom: 32%;
  left: 12%;
  animation: gentle-float 4s ease-in-out infinite;
}

.fobj-monument {
  top: 30%;
  right: 10%;
  animation: gentle-float 5s ease-in-out infinite 0.5s;
}

.fobj-book {
  bottom: 14%;
  left: 50%;
  transform: translateX(-50%);
  animation: gentle-glow-pulse 3s ease-in-out infinite;
}

.fobj-book:active { transform: translateX(-50%) scale(0.92); }

@keyframes gentle-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

@keyframes gentle-glow-pulse {
  0%, 100% {
    box-shadow: 0 6px 16px rgba(20, 30, 20, 0.3), 0 0 0 0 rgba(184, 168, 212, 0);
  }
  50% {
    box-shadow: 0 6px 16px rgba(20, 30, 20, 0.3), 0 0 16px 4px rgba(184, 168, 212, 0.4);
  }
}