/* 胶带用量计算器 —— 琥珀胶带 · 斜纹封条 */
.c60{
  --a:#ca8a04;
  --a2:#fde047;
  --a-soft:rgba(202,138,4,.10);
  --a-line:rgba(202,138,4,.28);
}

/* 封条母题：斜向胶带纹 + 暖光 */
.c60-hero{
  background:
    radial-gradient(700px 300px at 12% 0%, rgba(255,255,255,.8), transparent 64%),
    repeating-linear-gradient(48deg, rgba(202,138,4,.09) 0 10px, rgba(253,224,71,.10) 10px 20px),
    linear-gradient(135deg,#fffdf2 0%,#fef9c3 52%,#fde68a 100%);
}
:root[data-theme="dark"] .c60-hero{
  background:
    radial-gradient(700px 300px at 12% 0%, rgba(202,138,4,.2), transparent 64%),
    repeating-linear-gradient(48deg, rgba(253,224,71,.06) 0 10px, rgba(202,138,4,.08) 10px 20px),
    linear-gradient(135deg,#1c1706 0%,#241d06 52%,#101a2c 100%);
}
.c60-hero-art .core{
  background:linear-gradient(145deg,#fbbf24,#a16207);
  box-shadow:0 18px 42px rgba(161,98,7,.34);
}
.c60-hero-art .chip b{color:#a16207;}
:root[data-theme="dark"] .c60-hero-art .chip b{color:#fde047;}

.c60-metric.is-hero{
  background:linear-gradient(135deg,#ca8a04,#854d0e 76%);
  box-shadow:0 16px 34px rgba(161,98,7,.3);
}
.c60-metric.is-hero .v{font-size:clamp(28px,3.4vw,42px);}

.c60-segbtn.on{color:#a16207;}
.c60-chip.on{background:rgba(202,138,4,.12);border-color:#ca8a04;color:#a16207;}
:root[data-theme="dark"] .c60-chip.on{color:#fde047;border-color:#fbbf24;}

/* 封法说明 */
.ptu-howto{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:10px;}
.ptu-howto li{
  position:relative;
  padding:11px 13px 11px 40px;
  border-radius:12px;
  background:linear-gradient(90deg,rgba(202,138,4,.09),transparent 74%);
  border:1px solid rgba(202,138,4,.2);
  color:var(--ink2);
  font-size:13px;
  line-height:1.75;
}
.ptu-howto li::before{
  content:"▰";
  position:absolute;left:14px;top:9px;
  font-size:14px;color:var(--a);
}
.ptu-howto b{color:var(--ink);}

/* 走带示意 */
.ptu-viz{
  margin-top:16px;
  border:1px solid rgba(202,138,4,.26);
  border-radius:14px;
  background:
    repeating-linear-gradient(48deg, rgba(202,138,4,.05) 0 6px, transparent 6px 14px),
    var(--soft);
  padding:12px 14px 8px;
}
.ptu-viz-h{
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  margin-bottom:8px;
  font-size:12px;font-weight:800;color:#a16207;
}
.ptu-viz-h span:last-child{color:var(--muted);font-weight:600;}
.ptu-viz svg{display:block;width:100%;height:auto;}

/* 对比表 */
.ptu-table td:first-child{font-weight:800;color:var(--ink);}
.ptu-table td:nth-child(n+2){font-variant-numeric:tabular-nums;white-space:nowrap;}
.ptu-table tbody tr:nth-child(even) td{background:rgba(202,138,4,.04);}
.ptu-table tr.is-current td{background:rgba(202,138,4,.12);font-weight:800;color:#a16207;}
:root[data-theme="dark"] .ptu-table tr.is-current td{color:#fde047;}

#ptuBars .c60-bar-row .bf{background:linear-gradient(90deg,#fbbf24,#a16207);}

@media (max-width:640px){
  .ptu-viz{padding:10px 8px 4px;}
}