.sitstar-showroom-section {
  width: 100% !important;
  max-width: 100% !important;
  padding: 70px 0 0 0 !important;
  background-color: #ffffff;
  overflow-x: hidden;
}

.sitstar-showroom-section .title-decoration-lines {
  text-align: center;
  margin-bottom: 30px;
  padding: 0 15px;
}
.sitstar-showroom-section .title-decoration-lines h6 {
  color: var(--title-text-color);
  font-size: 36px;
  line-height: 1.2;
  font-weight: 500;
  letter-spacing: 0.1em;
}
.sitstar-showroom-section .title-decoration-lines .title-decoration-lines-content {
  position: relative;
  display: inline-block;
  padding: 0 16px;
  font-weight: 600;
}
.sitstar-showroom-section .title-decoration-lines .title-decoration-lines-content::before,
.sitstar-showroom-section .title-decoration-lines .title-decoration-lines-content::after {
  position: absolute;
  content: "";
  top: calc(50% - 1px);
  height: 1px;
  width: 100vw;
  background: #d7d7d7;
}
.sitstar-showroom-section .title-decoration-lines .title-decoration-lines-content::before { left: 0; transform: translate3d(-100%, 0, 0); }
.sitstar-showroom-section .title-decoration-lines .title-decoration-lines-content::after { right: 0; transform: translate3d(100%, 0, 0); }

.sitstar-grid-container {
  display: grid;
  width: 100%;
}

@media (max-width: 1024px) {
  .sitstar-showroom-section .title-decoration-lines h6 {
    font-size: 30px;
  }
}

@media (max-width: 767px) {
  .sitstar-showroom-section .title-decoration-lines h6 {
    font-size: 24px;
  }
}

@media (min-width: 768px) {
  .sitstar-grid-container {
    grid-template-columns: 26vw 40px 1fr 14px 1fr;
    grid-template-rows: 1fr 1fr;
    grid-row-gap: 14px;
  }

  .main-box {
    grid-column: 1 / 2;
    grid-row: 1 / 3;
  }
  
  .sub-box:nth-of-type(2) { grid-column: 3 / 4; grid-row: 1 / 2; }
  .sub-box:nth-of-type(3) { grid-column: 5 / 6; grid-row: 1 / 2; }
  .sub-box:nth-of-type(4) { grid-column: 3 / 4; grid-row: 2 / 3; }
  .sub-box:nth-of-type(5) { grid-column: 5 / 6; grid-row: 2 / 3; }
  
  .sitstar-grid-container {
    height: calc(26vw * 1.4);
  }
}

@media (min-width: 1200px) {
  .sitstar-grid-container {
    grid-template-columns: 28vw 55px 1fr 16px 1fr;
    grid-row-gap: 16px;
    height: calc(28vw * 1.43); 
  }
}

@media (max-width: 767px) {
  .sitstar-grid-container {
    grid-template-columns: 1fr;
    grid-gap: 15px;
    padding: 0 15px;
  }
  .grid-box {
    height: 240px;
  }
}

.grid-box {
  position: relative;
  overflow: hidden;
  background-color: #000;
  cursor: default;
}

.grid-box .img-wrapper {
  width: 100%;
  height: 100%;
}

.grid-box .img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.grid-box .showroom-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
  box-sizing: border-box;
  z-index: 2;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.4s ease-in-out, visibility 0.4s ease-in-out;
}

.grid-box .showroom-title {
  color: #ffffff;
  font-size: 20px;
  font-weight: 400;
  margin: 0;
  letter-spacing: 0.025em;
  line-height: 1.4;
  padding: 0 10px;
}
.grid-box .showroom-badge {
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  margin-top: 5px;
}

.grid-box:hover .showroom-mask {
  opacity: 0;
  visibility: hidden;
}

.grid-box:hover .img-wrapper img {
  transform: scale(1.04);
}