/* 定价区 */
.pricing {
  position: relative;
  padding-block: 120px 150px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg-deep) 70%, transparent), var(--bg) 30%);
  overflow: hidden;
}

.pricing::before {
  content: '';
  position: absolute;
  top: 80px;
  left: 50%;
  transform: translateX(-50%);
  width: 820px;
  height: 420px;
  background: radial-gradient(closest-side, rgba(36, 137, 253, 0.09), transparent);
  pointer-events: none;
}

.pricing__head {
  text-align: center;
  margin-bottom: 64px;
  position: relative;
}

.pricing__title {
  font-size: var(--fs-4xl);
  font-weight: 800;
}

.pricing__desc {
  max-width: 640px;
  margin: 18px auto 0;
  color: var(--text-2);
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: stretch;
  position: relative;
}

/* 套餐卡片 */
.plan-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  padding: 28px 24px 26px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform 0.35s var(--ease-out), border-color 0.3s ease, box-shadow 0.35s ease;
}

.plan-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 24px;
  right: 24px;
  height: 2px;
  border-radius: 2px;
  background: var(--plan-color);
  opacity: 0.85;
}

.plan-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  box-shadow: 0 18px 44px -18px rgba(10, 20, 30, 0.35);
}

.plan-card--hot {
  border-color: color-mix(in srgb, var(--plan-color) 55%, var(--border));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--plan-color) 30%, transparent), 0 22px 48px -20px rgba(24, 160, 88, 0.35);
}

.plan-card__badge {
  position: absolute;
  top: -11px;
  left: 50%;
  transform: translateX(-50%);
  padding: 3px 14px;
  border-radius: 999px;
  background: var(--plan-color);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.plan-card__top {
  padding-top: 6px;
}

.plan-card__name {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--text);
}

.plan-card__price {
  margin-top: 16px;
  font-size: 1.9rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--plan-color);
}

.plan-card__period {
  margin-top: 4px;
  font-size: 0.8rem;
  color: var(--text-3);
}

.plan-card__perks {
  margin: 22px 0 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.plan-card__perks li {
  position: relative;
  padding-left: 20px;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--text-2);
}

.plan-card__perks li::before {
  content: '';
  position: absolute;
  top: 0.58em;
  left: 0;
  width: 9px;
  height: 5px;
  border-left: 2px solid var(--plan-color);
  border-bottom: 2px solid var(--plan-color);
  transform: rotate(-45deg);
  opacity: 0.9;
}

.plan-card__btn {
  display: block;
  text-align: center;
  padding: 11px 16px;
  border-radius: var(--radius-nav-btn);
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--plan-color);
  background: color-mix(in srgb, var(--plan-color) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--plan-color) 40%, transparent);
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s var(--ease-out), box-shadow 0.25s ease;
}

.plan-card__btn:hover {
  background: var(--plan-color);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 10px 24px -10px var(--plan-color);
}

/* 弹窗：液态玻璃卡片（复用顶栏 6 层玻璃） */
.promo-pop {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(6, 10, 8, 0.42);
  backdrop-filter: blur(12px) saturate(130%);
  -webkit-backdrop-filter: blur(12px) saturate(130%);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease-out), visibility 0.35s ease;
}

.promo-pop.is-open {
  opacity: 1;
  visibility: visible;
}

.promo-pop[hidden] {
  display: none;
}

.promo-pop__card {
  width: 100%;
  max-width: 440px;
  padding: 42px 42px 30px;
  border-radius: var(--radius-nav);
  border: 1px solid var(--border-strong);
  background: var(--island-bg);
  box-shadow: var(--shadow-lg);
  text-align: left;
  transform: translateY(20px) scale(0.98);
  transition: transform 0.45s var(--ease-out);
}

.promo-pop.is-open .promo-pop__card {
  transform: none;
}

.promo-pop__card > :not(.glass) {
  position: relative;
  z-index: 6;
}

.promo-pop.is-open .promo-pop__card .glass__highlight::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 70%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, 0.16), transparent);
  transform: translateX(-120%);
  animation: glassSweep 0.9s var(--ease-out) 0.12s both;
  pointer-events: none;
}

.promo-pop__card > .promo-pop__close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--text-3);
  transition: background 0.25s ease, color 0.25s ease, transform 0.25s var(--ease-out);
}

.promo-pop__close:hover {
  background: color-mix(in srgb, var(--text) 8%, transparent);
  color: var(--text);
  transform: rotate(90deg);
}

.promo-pop__close svg {
  width: 15px;
  height: 15px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
}

.promo-pop__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
}

.promo-pop__title {
  margin-top: 12px;
  font-size: 1.55rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

.promo-pop__text {
  margin-top: 14px;
  max-width: 34ch;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--text-2);
}

.promo-pop__cta {
  position: relative;
  display: block;
  width: 100%;
  margin-top: 28px;
  padding: 14px 20px;
  border-radius: var(--radius-nav-btn);
  color: #fff;
  font-weight: 700;
  font-size: 0.98rem;
  text-align: center;
  transition: transform 0.25s var(--ease-out), filter 0.25s ease, box-shadow 0.25s ease;
}

.promo-pop__cta:hover {
  transform: translateY(-1px);
  filter: brightness(0.96);
  box-shadow: 0 10px 26px -12px rgba(36, 137, 253, 0.5);
}

.promo-pop__dismiss {
  display: block;
  margin: 20px auto 0;
  font-size: 0.82rem;
  color: var(--text-3);
  transition: color 0.25s ease;
}

.promo-pop__dismiss:hover {
  color: var(--text);
}

@media (max-width: 1080px) {
  .pricing__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
  }
}

@media (max-width: 640px) {
  .pricing {
    padding-block: 84px 110px;
  }

  .pricing__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .plan-card--hot {
    order: -1;
  }

  .promo-pop__card {
    padding: 30px 22px 26px;
  }
}