/* ===== کارت‌های توضیح ===== */
.sub {
  margin: 4px 0 22px;
  opacity: .85;
}

.g4 {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
  gap: 18px;
}

.box {
  position: relative;
  overflow: hidden;
  border: 4px solid var(--line);
  border-radius: 26px;
  padding: 20px;
  background: linear-gradient(#fff,#f1f5ff);
  color: #14204f;
  box-shadow: 0 7px 0 var(--line),0 16px 24px rgba(10,20,80,.18);
}

.box .em {
  font-size: 44px;
  line-height: 1;
  filter: drop-shadow(0 5px 4px rgba(0,0,0,.25));
}

.box h3 {
  font-size: 25px;
  color: var(--red);
  margin: 6px 0 2px;
}

.box p {
  margin: 0;
}

.plan {
  color: #fff;
  border-color: #14204f;
}

.plan.g {
  background: radial-gradient(circle at 20% 0,#6f93ff,var(--blue) 50%,var(--navy));
  box-shadow: 0 9px 0 #061a70,0 22px 34px rgba(18,64,255,.45);
}

.plan.p {
  background: radial-gradient(circle at 20% 0,#ff8a99,var(--red) 50%,#bf0a28);
  box-shadow: 0 9px 0 #7d0014,0 22px 34px rgba(255,42,69,.45);
}

.plan h3 {
  color: #fff;
  font-size: 30px;
}

.plan ul {
  padding: 0;
  margin: 10px 0 0;
  list-style: none;
}

.plan li::before {
  content: "★ ";
  color: var(--sun);
}

.band {
  background: linear-gradient(#fff,#e9efff);
  border-block: 4px solid var(--line);
}

.g4 .box:not(.plan):nth-child(4n+1),
.steps .box:nth-child(4n+1) {
  background: linear-gradient(#fff,#ffd9ec);
}

.g4 .box:not(.plan):nth-child(4n+2),
.steps .box:nth-child(4n+2) {
  background: linear-gradient(#fff,#fff1a6);
}

.g4 .box:not(.plan):nth-child(4n+3),
.steps .box:nth-child(4n+3) {
  background: linear-gradient(#fff,#cdf5d3);
}

.g4 .box:not(.plan):nth-child(4n),
.steps .box:nth-child(4n) {
  background: linear-gradient(#fff,#cfe6ff);
}

.box:not(.plan) {
  background: linear-gradient(145deg,rgba(255,255,255,.62),rgba(255,255,255,.26))!important;
  border: 1.5px solid rgba(255,255,255,.8)!important;
  box-shadow: 0 14px 40px rgba(40,70,170,.25),inset 0 2px 0 rgba(255,255,255,.9),inset 0 -2px 8px rgba(255,255,255,.25)!important;
  -webkit-backdrop-filter: blur(18px) saturate(1.7);
  backdrop-filter: blur(18px) saturate(1.7);
  color: #14204f;
}

.g4 .box:not(.plan):nth-child(4n+1),
.steps .box:nth-child(4n+1) {
  background: linear-gradient(145deg,rgba(255,160,210,.62),rgba(255,255,255,.25))!important;
}

.g4 .box:not(.plan):nth-child(4n+2),
.steps .box:nth-child(4n+2) {
  background: linear-gradient(145deg,rgba(255,232,120,.65),rgba(255,255,255,.25))!important;
}

.g4 .box:not(.plan):nth-child(4n+3),
.steps .box:nth-child(4n+3) {
  background: linear-gradient(145deg,rgba(140,230,165,.6),rgba(255,255,255,.25))!important;
}

.g4 .box:not(.plan):nth-child(4n),
.steps .box:nth-child(4n) {
  background: linear-gradient(145deg,rgba(140,195,255,.62),rgba(255,255,255,.25))!important;
}

.plan.g {
  background: linear-gradient(145deg,rgba(18,64,255,.8),rgba(110,140,255,.58))!important;
  border: 1.5px solid rgba(255,255,255,.7)!important;
  box-shadow: 0 18px 46px rgba(18,64,255,.4),inset 0 2px 0 rgba(255,255,255,.6)!important;
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
  backdrop-filter: blur(16px) saturate(1.6);
  color: #fff;
}

.plan.p {
  background: linear-gradient(145deg,rgba(255,42,69,.82),rgba(255,120,140,.58))!important;
  border: 1.5px solid rgba(255,255,255,.7)!important;
  box-shadow: 0 18px 46px rgba(255,42,69,.4),inset 0 2px 0 rgba(255,255,255,.6)!important;
  -webkit-backdrop-filter: blur(16px) saturate(1.6);
  backdrop-filter: blur(16px) saturate(1.6);
  color: #fff;
}

.band {
  background: rgba(255,255,255,.25)!important;
  border-block: 1.5px solid rgba(255,255,255,.7)!important;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

@supports not ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))) {
  .box:not(.plan) {
    background: rgba(255,255,255,.92)!important;
  }
}

.box-media {
  height: 160px;
  width: 100%;
  border-radius: 18px;
  margin-bottom: 12px;
  overflow: hidden;
}

.box-media img {
  height: 160px;
  width: 100%;
  object-fit: cover;
  border-radius: 18px;
  margin-bottom: 12px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
  display: block;
}

.box.plan .box-media {
  border: 2px solid rgba(255,255,255,0.4);
  box-shadow: 0 6px 18px rgba(0,0,0,0.18);
}