.fzlfc-wrap {
  --fzlfc-front-bg: #eef6ff;
  --fzlfc-back-bg: #fff3f3;
  --fzlfc-front-color: #111111;
  --fzlfc-back-color: #111111;
  --fzlfc-font-size: 22px;
  --fzlfc-radius: 22px;
  --fzlfc-shadow: 0 18px 45px rgba(0, 0, 0, 0.14);

  max-width: 900px;
  margin: 16px auto;
  padding: 16px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  background: #ffffff;

  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
}

.fzlfc-header {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.fzlfc-title {
  font-size: 18px;
  font-weight: 800;
  line-height: 1.2;
}

.fzlfc-meta {
  display: flex;
  gap: 10px;
  font-size: 13px;
  opacity: 0.85;
}

.fzlfc-card {
  width: 100%;
  min-height: 320px;
  perspective: 1400px;
  outline: none;
}

.fzlfc-card-inner {
  position: relative;
  width: 100%;
  min-height: 320px;
  transform-style: preserve-3d;
  transition: transform 260ms ease;
  border-radius: var(--fzlfc-radius);
  box-shadow: var(--fzlfc-shadow);
}

.fzlfc-card-inner.is-flipped {
  transform: rotateY(180deg);
}

.fzlfc-face {
  position: absolute;
  inset: 0;
  padding: 26px;
  backface-visibility: hidden;
  overflow: auto;
  border-radius: var(--fzlfc-radius);
  line-height: 1.55;

  border: 1px solid rgba(0, 0, 0, 0.10);
}

.fzlfc-front {
  background: var(--fzlfc-front-bg);
  color: var(--fzlfc-front-color);
  font-size: var(--fzlfc-font-size);
  font-weight: 800;
}

.fzlfc-back {
  transform: rotateY(180deg);
  background: var(--fzlfc-back-bg);
  color: var(--fzlfc-back-color);
  font-size: calc(var(--fzlfc-font-size) - 2px);
  font-weight: 600;
}

.fzlfc-card.is-known .fzlfc-face {
  box-shadow: 0 0 0 3px rgba(0, 150, 90, 0.25) inset;
}

.fzlfc-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.fzlfc-wrap .fzlfc-btn {
  -webkit-appearance: none;
  appearance: none;
  border: 1px solid rgba(0, 0, 0, 0.14) !important;
  background: #ffffff !important;
  color: #111111 !important;
  border-radius: 12px;
  padding: 12px 14px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  transition: transform 120ms ease, box-shadow 120ms ease;
  user-select: none;
}

.fzlfc-wrap .fzlfc-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.10);
}

.fzlfc-wrap .fzlfc-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.fzlfc-wrap .fzlfc-btn:focus {
  outline: 3px solid rgba(0, 120, 255, 0.25);
  outline-offset: 2px;
}

.fzlfc-wrap .fzlfc-primary {
  border-color: rgba(0, 120, 255, 0.35) !important;
  background: rgba(0, 120, 255, 0.08) !important;
}

.fzlfc-media {
  margin-top: 12px;
  display: grid;
  gap: 10px;
}

.fzlfc-media img,
.fzlfc-media video {
  max-width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.10);
}

.fzlfc-media audio {
  width: 100%;
}

.fzlfc-hint {
  margin-top: 10px;
  font-size: 12px;
  opacity: 0.72;
}

@media (max-width: 600px) {
  .fzlfc-card,
  .fzlfc-card-inner {
    min-height: 280px;
  }

  .fzlfc-face {
    padding: 20px;
  }

  .fzlfc-front {
    font-size: calc(var(--fzlfc-font-size) - 2px);
  }
}