/* ===== kuso 弹幕：左下角设置 ===== */
.dm-kuso-wrap {
  position: fixed;
  left: 16px;
  bottom: calc(16px + env(safe-area-inset-bottom));
  z-index: 2147483646;
  font-size: 13px;
  color: var(--text-primary);
}

.dm-kuso-btn {
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border-medium);
  border-radius: 50%;
  background: var(--bg-primary);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
  transition: transform 0.15s, box-shadow 0.2s;
}

.dm-kuso-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.16);
}

.dm-kuso-btn:active {
  transform: scale(0.94);
}

.dm-kuso-panel {
  position: absolute;
  left: 0;
  bottom: calc(100% + 10px);
  width: 250px;
  box-sizing: border-box;
  padding: 14px 16px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
  display: none;
}

.dm-kuso-panel.is-open {
  display: block;
}

.dm-kuso-row {
  margin-bottom: 12px;
}

.dm-kuso-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
  font-size: 12.5px;
  color: var(--text-secondary);
}

.dm-kuso-val {
  color: var(--text-primary);
  font-weight: 600;
}

.dm-kuso-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  margin: 0;
  border-radius: 2px;
  background: var(--border-medium);
  outline: none;
  cursor: pointer;
}

.dm-kuso-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border: 2px solid var(--bg-primary);
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  cursor: pointer;
}

.dm-kuso-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border: 2px solid var(--bg-primary);
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  cursor: pointer;
}

.dm-kuso-ai {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-secondary);
  cursor: pointer;
  user-select: none;
}

.dm-kuso-ai input {
  width: 15px;
  height: 15px;
  margin: 0;
  accent-color: var(--primary);
  cursor: pointer;
}

.dm-kuso-reset {
  width: 100%;
  margin-top: 12px;
  padding: 7px 0;
  border: 1px solid var(--border-light);
  border-radius: 8px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 12.5px;
  cursor: pointer;
}

.dm-kuso-reset:hover {
  color: var(--primary);
  border-color: var(--primary);
}

/* ===== 热门搜索页弹幕：右下角图标唤出的发送框 ===== */
.dm-kuso-send {
  position: fixed;
  left: 50%;
  bottom: calc(20px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  z-index: 2147483647;
  width: min(560px, calc(100% - 32px));
  box-sizing: border-box;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
}

.dm-kuso-send-input {
  flex: 1;
  min-width: 0;
  height: 36px;
  padding: 0 12px;
  box-sizing: border-box;
  border: 1px solid var(--border-medium);
  border-radius: 9px;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 14px;
  outline: none;
}

.dm-kuso-send-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(15, 118, 110, 0.15);
}

.dm-kuso-send-btn {
  flex: none;
  height: 36px;
  padding: 0 18px;
  border: none;
  border-radius: 9px;
  background: var(--primary);
  color: var(--text-on-primary);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.dm-kuso-send-btn:hover {
  background: var(--primary-dark);
}

.dm-kuso-send-close {
  position: absolute;
  top: -9px;
  right: -9px;
  width: 22px;
  height: 22px;
  line-height: 20px;
  text-align: center;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 15px;
  cursor: pointer;
  user-select: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

@media (max-width: 640px) {
  /* 让出发送框右侧的内核弹幕图标（57px），避免遮挡发送按钮 */
  .dm-kuso-send {
    left: 12px;
    right: 72px;
    width: auto;
    transform: none;
  }
}