.v4-multi{
  position:relative;
  min-width:180px;
}

.v4-multi summary{
  height:42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:0 14px;
  border:1px solid #d8cabb;
  border-radius:12px;
  background:#fff;
  color:#3d342d;
  cursor:pointer;
  list-style:none;
  font-size:14px;
}

.v4-multi summary::-webkit-details-marker{
  display:none;
}

.v4-multi summary:after{
  content:"⌄";
  color:#8d7c68;
}

.v4-multi summary b{
  font-weight:700;
}

.v4-multi summary span{
  color:#8a6a49;
  font-size:12px;
  font-weight:800;
}

.v4-multi-panel{
  position:absolute;
  left:0;
  top:calc(100% + 8px);
  z-index:80;
  min-width:260px;
  max-height:330px;
  overflow:auto;
  padding:8px;
  border:1px solid #e2d3c2;
  border-radius:16px;
  background:#fffdf9;
  box-shadow:0 22px 54px rgba(54,42,31,.16);
}

.v4-option{
  min-height:36px;
  display:flex;
  align-items:center;
  gap:9px;
  padding:5px 9px;
  border-radius:10px;
  cursor:pointer;
  color:#3d342d;
  font-size:13px;
}

.v4-option:hover{
  background:#f5eee6;
}

.v4-option input{
  width:16px !important;
  height:16px !important;
  min-height:16px !important;
  margin:0;
}

.v4-option em{
  margin-left:auto;
  color:#9b8d7c;
  font-size:12px;
  font-style:normal;
}

.v4-selected-tags{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin:-10px 0 18px;
}

.v4-selected-tags span{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:0 9px;
  border-radius:999px;
  background:#efe4d8;
  color:#735338;
  font-size:12px;
  font-weight:800;
}

.v4-material-box{
  margin:28px 0 0;
  padding:22px;
  border:1px solid #e3d2bf;
  border-radius:24px;
  background:
    radial-gradient(circle at 0 0, rgba(166,123,77,.10), transparent 34%),
    linear-gradient(135deg,#fffdf9,#f7efe4);
  box-shadow:0 18px 46px rgba(54,42,31,.085);
}

.v4-material-box h2{
  margin:0 0 8px;
  font-size:22px;
  letter-spacing:-.02em;
}

.v4-material-sub{
  margin:0 0 18px;
  color:#74685f;
  line-height:1.7;
  font-size:13px;
}

.v4-material-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}

.v4-material-card{
  padding:14px;
  border:1px solid #eadcca;
  border-radius:18px;
  background:rgba(255,255,255,.92);
}

.v4-material-card b{
  display:block;
  margin-bottom:6px;
  color:#5b402b;
  font-size:14px;
}

.v4-material-card p{
  margin:0;
  color:#655b53;
  font-size:13px;
  line-height:1.65;
}

.v4-source-note{
  margin-top:14px;
  padding:12px 14px;
  border-radius:16px;
  background:#fff8ed;
  color:#715d48;
  font-size:12px;
  line-height:1.7;
}

.v4-detail-polish .v3-detail-info{
  border-color:#dfcbb5;
}

.v4-detail-polish .v3-detail-image{
  background:
    radial-gradient(circle at 50% 30%, #fff 0%, #fbf6ee 60%, #f3eadf 100%);
}

.v4-filter-help{
  width:100%;
  margin-top:2px;
  color:#8b8178;
  font-size:12px;
}

.v3-card{
  background:linear-gradient(180deg,#fffdf9,#fffaf4);
}

.v3-card-title{
  letter-spacing:-.01em;
}

@media(max-width:820px){
  .v4-material-grid{
    grid-template-columns:1fr;
  }

  .v4-multi{
    width:100%;
  }

  .v4-multi-panel{
    position:static;
    margin-top:8px;
    min-width:100%;
  }
}