/* 屋面瓦片用量计算器 —— 陶瓦棕 · 阶梯排瓦 */
.c60{
  --a:#b45309;
  --a2:#f59e0b;
  --a-soft:rgba(180,83,9,.10);
  --a-line:rgba(180,83,9,.26);
}

/* hero：瓦垄叠压纹 + 斜面暖光 */
.c60-hero{
  background:
    radial-gradient(720px 300px at 12% -6%, rgba(255,255,255,.78), transparent 62%),
    repeating-linear-gradient(0deg, rgba(180,83,9,.055) 0 12px, transparent 12px 26px),
    repeating-linear-gradient(90deg, rgba(180,83,9,.07) 0 1px, transparent 1px 34px),
    linear-gradient(132deg, #fffaf2 0%, #ffedd5 48%, #fde68a 100%);
}
:root[data-theme="dark"] .c60-hero{
  background:
    radial-gradient(720px 300px at 12% -6%, rgba(245,158,11,.16), transparent 62%),
    repeating-linear-gradient(0deg, rgba(251,191,36,.05) 0 12px, transparent 12px 26px),
    repeating-linear-gradient(90deg, rgba(251,191,36,.05) 0 1px, transparent 1px 34px),
    linear-gradient(132deg,#1d1305 0%,#231707 48%,#101a2b 100%);
}
.c60-hero-art .core{
  background:linear-gradient(145deg,#f59e0b,#b45309);
  box-shadow:0 18px 42px rgba(180,83,9,.34);
}
.c60-hero-art .chip b{color:#b45309;}

/* 主结果：陶土渐变 */
.c60-metric.is-hero{
  background:linear-gradient(135deg,#b45309,#7c2d12 74%);
  box-shadow:0 16px 34px rgba(124,45,18,.28);
}
.c60-metric.is-hero .v{font-size:clamp(28px,3.4vw,42px);}

/* 分段 / 选中态 */
.c60-segbtn.on{color:#b45309;}
.c60-chip.on{background:rgba(180,83,9,.12);border-color:#b45309;color:#7c2d12;}

/* 可视化容器 */
.c60-viz{
  margin-top:16px;
  padding:12px 14px 8px;
  border:1px solid var(--line);
  border-radius:12px;
  background:linear-gradient(180deg,rgba(180,83,9,.035),transparent 60%), var(--card);
}
.c60-viz-h{
  display:flex;justify-content:space-between;gap:10px;
  margin-bottom:4px;
  font-size:12px;font-weight:800;color:var(--muted);
}
.c60-viz-h span:last-child{color:var(--a);white-space:nowrap;}
.rt-roof svg{display:block;width:100%;height:auto;}
.rt-roof text{font-family:var(--font);}

/* 量房小抄 */
.rt-howto{margin:0;padding-left:18px;font-size:13px;line-height:1.9;color:var(--ink2);}
.rt-howto li{margin:5px 0;}
.rt-howto b{color:var(--ink);}

/* 材料表 */
.rt-table td:nth-child(3){font-weight:800;color:var(--a);white-space:nowrap;}
.rt-table td:first-child{font-weight:800;color:var(--ink);}
.rt-table tbody tr:nth-child(even) td{background:rgba(180,83,9,.035);}

/* 结果卡顶部细纹，呼应瓦垄 */
#rtTableWrap{max-height:none;}

@media (max-width:640px){
  .c60-viz{padding:10px;}
  .c60-viz-h{font-size:11.5px;}
}
@media print{
  .c60-viz{border-color:#ddd;}
}