/* ============================================================
   PART 5 · 色卡系统（多体系版本）
   支持 RAL / 潘通 / 中国建筑色卡 / 多乐士 / 立邦 五大体系切换
   ============================================================ */
.swatch-wrap{
  border-radius:26px;background:#fff;
  padding:46px 40px 42px;
  box-shadow:var(--sh-sm);border:1px solid var(--line);
  position:relative;overflow:hidden;
}
.swatch-wrap::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:var(--grad-main);
}

/* ---------- 顶部标题行 ---------- */
.swatch-head{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;margin-bottom:26px;
}
.swatch-head h3{font-size:22px;font-weight:900;letter-spacing:-.4px;}
.swatch-head p{font-size:14px;color:var(--text2);}

/* ---------- 色卡体系切换栏 ---------- */
.swatch-tabs{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:30px;
  padding-bottom:26px;
  border-bottom:1px dashed var(--line);
}

.swatch-tab{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 18px;
  border-radius:14px;
  background:#fff;
  border:1.5px solid var(--line);
  font-size:13.5px;
  font-weight:800;
  color:var(--text2);
  cursor:pointer;
  transition:all .3s var(--ease);
  box-shadow:var(--sh-xs);
  -webkit-tap-highlight-color:transparent;
  line-height:1.2;
}
.swatch-tab .st-logo{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:26px;
  padding:0 8px;
  border-radius:8px;
  background:var(--st-color,var(--c-blue));
  color:#fff;
  font-size:11px;
  font-weight:900;
  letter-spacing:.8px;
  text-transform:uppercase;
  transition:.3s var(--ease);
}
.swatch-tab .st-name{
  font-size:13.5px;
  font-weight:800;
  white-space:nowrap;
}
.swatch-tab .st-count{
  font-size:11px;
  font-weight:900;
  padding:1px 8px;
  border-radius:999px;
  background:rgba(15,108,189,.1);
  color:var(--c-blue);
  transition:.3s var(--ease);
}

.swatch-tab:hover{
  color:var(--st-color,var(--c-blue));
  border-color:var(--st-color,var(--c-blue));
  transform:translateY(-2px);
  box-shadow:var(--sh-sm);
}
.swatch-tab.active{
  background:var(--st-grad,var(--grad-blue-teal));
  border-color:transparent;
  color:#fff;
  box-shadow:0 8px 22px rgba(15,108,189,.24);
}
.swatch-tab.active .st-logo{
  background:rgba(255,255,255,.22);
  color:#fff;
}
.swatch-tab.active .st-count{
  background:rgba(255,255,255,.24);
  color:#fff;
}

/* 五个色卡体系的主题色 */
/*
.swatch-tab[data-sys="ral"]{
  --st-color:#0F6CBD;
  --st-grad:linear-gradient(135deg,#0F6CBD,#2C8EE0);
}
.swatch-tab[data-sys="pantone"]{
  --st-color:#019187;
  --st-grad:linear-gradient(135deg,#00B8A9,#3ED9C9);
}
.swatch-tab[data-sys="cbcc"]{
  --st-color:#E8640A;
  --st-grad:linear-gradient(135deg,#FFC53D,#FF7A1A);
}
.swatch-tab[data-sys="dulux"]{
  --st-color:#B8860B;
  --st-grad:linear-gradient(135deg,#FFC53D,#00B8A9);
}
.swatch-tab[data-sys="nippon"]{
  --st-color:#FF7A1A;
  --st-grad:linear-gradient(135deg,#FF7A1A,#0F6CBD);
}
*/

/* ---------- 色卡分组容器 ---------- */
.swatch-panels{
  position:relative;
}

.swatch-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:16px;
}

/* 除当前激活体系外，其他体系隐藏 */
.swatch-grid.swatch-group{
  display:none;
}
.swatch-grid.swatch-group.active{
  display:grid;
  animation:swatchFade .45s var(--ease);
}
@keyframes swatchFade{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}

/* ---------- 色卡 ---------- */
.swatch{
  border-radius:16px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--sh-xs);
  border:1px solid var(--line);
  transition:all .38s var(--ease);
  cursor:pointer;
  position:relative;
}
.swatch:hover{
  transform:translateY(-8px) scale(1.03);
  box-shadow:var(--sh-lg);
  border-color:transparent;
}
.swatch .block{
  height:96px;
  background:var(--c);
  position:relative;
  overflow:hidden;
}
.swatch .block::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 52%,rgba(0,0,0,.14));
}
.swatch .info{
  padding:12px 13px 14px;
}
.swatch .code{
  font-size:11.5px;
  font-weight:900;
  letter-spacing:.4px;
  color:var(--text);
  font-family:"SF Mono",Consolas,Monaco,monospace;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.swatch .name{
  font-size:11.5px;
  color:var(--text2);
  margin-top:3px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* ---------- 底部提示 ---------- */
.color-tip{
  margin-top:34px;
  text-align:center;
  font-size:14.5px;
  color:var(--text2);
}
.color-tip strong{
  font-weight:900;
  background:var(--grad-blue-teal);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* ---------- 响应式（替换原色卡部分响应式） ---------- */
@media (max-width:1120px){
  .swatch-grid{grid-template-columns:repeat(4,1fr);}
}
@media (max-width:980px){
  .swatch-tabs{gap:8px;}
  .swatch-tab{padding:9px 14px;font-size:12.5px;}
  .swatch-tab .st-logo{min-width:36px;height:24px;font-size:10.5px;padding:0 6px;}
}
@media (max-width:740px){
  .swatch-wrap{padding:34px 22px 32px;border-radius:22px;}
  .swatch-grid{grid-template-columns:repeat(3,1fr);gap:12px;}
  .swatch .block{height:78px;}

  .swatch-tabs{
    flex-wrap:nowrap;
    overflow-x:auto;
    padding-bottom:20px;
    margin-bottom:24px;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .swatch-tabs::-webkit-scrollbar{display:none;}
  .swatch-tab{flex-shrink:0;}
  .swatch-tab .st-count{display:none;}
}
@media (max-width:430px){
  .swatch-grid{grid-template-columns:repeat(2,1fr);}
  .swatch-tab{padding:8px 12px;font-size:12px;}
  .swatch-tab .st-name{font-size:12px;}
}