/* ========== 卡背（牌堆与卡片背面共用） ========== */
.card-back {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 18px;
  overflow: hidden;
  border: 1px solid rgba(216, 180, 106, 0.5);
  border-radius: var(--card-radius);
  background:
    radial-gradient(circle at 50% 44%, rgba(216, 180, 106, 0.2), transparent 55%),
    repeating-linear-gradient(45deg, rgba(216, 180, 106, 0.05) 0 1px, transparent 1px 16px),
    repeating-linear-gradient(-45deg, rgba(216, 180, 106, 0.05) 0 1px, transparent 1px 16px),
    linear-gradient(160deg, #183628 0%, #0a1812 100%);
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.5), inset 0 0 40px rgba(0, 0, 0, 0.35);
}

.card-back::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(216, 180, 106, 0.28);
  border-radius: 14px;
  pointer-events: none;
}

.card-back__en {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  letter-spacing: 6px;
  color: rgba(216, 180, 106, 0.85);
}

.card-back__slogan {
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: 4px;
  color: rgba(216, 180, 106, 0.6);
}

/* ========== 商品卡片 ========== */
.card {
  position: relative;
  width: var(--card-w);
  height: var(--card-h);
  opacity: 0;
  transform-style: preserve-3d;
  will-change: transform;
}

.card.is-dealt {
  opacity: 1;
}

.card__face {
  position: absolute;
  inset: 0;
  border-radius: var(--card-radius);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

.card__face.card-back {
  transform: rotateY(180deg);
}

.card__front {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  padding: 14px;
  border: 1px solid var(--c-border);
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, rgba(90, 150, 115, 0.14), transparent 70%),
    linear-gradient(165deg, var(--c-surface) 0%, var(--c-surface-2) 100%);
  box-shadow: var(--card-shadow);
}

.card__front::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 236, 190, 0.18) 50%, transparent 70%);
  transform: translateX(-130%);
  pointer-events: none;
}

.card.is-shine .card__front::after {
  animation: card-shine 1.4s var(--ease-out) forwards;
}

.card.is-landed .card__front {
  animation: card-land 1.1s ease-out;
}

.card__media {
  position: relative;
  flex: none;
  height: 184px;
  overflow: hidden;
  border-radius: 14px;
  background: #0d1d16;
}

.card__media svg,
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.card__hot {
  position: absolute;
  top: 10px;
  right: 10px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.45);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  font-family: var(--font-num);
  font-size: 12px;
  letter-spacing: 1px;
  color: var(--c-gold-light);
}

.card__name {
  margin-top: 14px;
  font-size: 24px;
  font-weight: 500;
  line-height: 32px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card__desc {
  margin-top: 2px;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  color: var(--c-text-2);
}

.card__tags {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 10px;
}

.tag {
  height: 26px;
  padding: 0 10px;
  border: 1px solid var(--c-tag-border);
  border-radius: 6px;
  background: var(--c-tag-bg);
  font-size: 12px;
  line-height: 24px;
  color: var(--c-tag-text);
}

.card__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding: 0 4px;
}

.card__price {
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 600;
  color: var(--c-gold);
}

.card__price small {
  margin-right: 2px;
  font-size: 18px;
}

.card__add {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #f1d58f, #c39445);
  box-shadow: 0 6px 16px rgba(216, 180, 106, 0.3);
  font-size: 24px;
  line-height: 1;
  color: #2a1d08;
}

/* 触摸涟漪 */
.ripple {
  position: absolute;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(243, 217, 160, 0.45), rgba(243, 217, 160, 0) 70%);
  pointer-events: none;
  animation: ripple 0.8s ease-out forwards;
}

@keyframes card-shine {
  to { transform: translateX(130%); }
}

@keyframes card-land {
  0% { box-shadow: 0 0 0 1px rgba(216, 180, 106, 0.9), 0 0 60px rgba(216, 180, 106, 0.45); }
  100% { box-shadow: var(--card-shadow); }
}

@keyframes ripple {
  to { transform: scale(36); opacity: 0; }
}