/* Revision 5: shared coating structure and heading alignment across 11 locales. */
.inno-editorial .corp-heading,
.elpang-editorial .corp-heading {
  display: block;
  margin-bottom: clamp(34px, 4vw, 54px);
}
.inno-editorial .corp-heading > p,
.elpang-editorial .corp-heading > p {
  max-width: 780px;
  margin-top: 24px;
  font-size: clamp(16px, 1.25vw, 18px);
  line-height: 1.85;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.r5-coating-section {
  margin: 0;
  border: 1px solid #d9e0e4;
  background: #f6f8f9;
  scroll-margin-top: calc(var(--header-h, 80px) + 24px);
}
.r5-coating-section .r5-coating-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 25px 32px;
  color: #eef4f6;
  background: #23333d;
}
.r5-coating-caption h3 {
  margin: 0;
  color: inherit;
  font-size: clamp(20px, 1.8vw, 26px);
  font-weight: 600;
  line-height: 1.5;
}
.r5-coating-caption > span {
  flex-shrink: 0;
  color: #c7d5dc;
  font-size: 14px;
}
.r5-coating-visual { padding: clamp(20px, 3vw, 38px); }
.r5-layer-model {
  position: relative;
  height: clamp(270px, 29vw, 390px);
  overflow: hidden;
  background: #e6ecef;
}
.r5-layer-model > img { display: block; width: 100%; height: 100%; }
.r5-layer-number {
  position: absolute;
  left: 18px;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  transform: translateY(-50%);
  border: 1px solid #c8ac72;
  border-radius: 50%;
  background: #24333d;
  color: #fff;
  font: 600 15px/1 var(--font-mono, monospace);
  box-shadow: 0 2px 8px #18293422;
}
.r5-layer-number::after {
  content: "";
  position: absolute;
  left: 100%;
  width: 44px;
  height: 1px;
  background: #e4c58a;
}
.r5-layer-number.film { top: 19%; }
.r5-layer-number.plating { top: 52%; }
.r5-layer-number.steel { top: 86%; }
.r5-layer-legend {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
  gap: 24px;
}
.r5-layer-legend li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin: 0;
}
.r5-layer-legend li > div,
.r5-adhesion > * { min-width: 0; overflow-wrap: anywhere; }
.r5-coating-caption h3 { min-width: 0; overflow-wrap: break-word; }
.inno-editorial .corp-heading h2,
.elpang-editorial .corp-heading h2 { max-width: 1020px; }
:lang(zh) .corp-heading > p,
:lang(ja) .corp-heading > p,
:lang(th) .corp-heading > p { word-break: normal; }
:lang(th) .r5-layer-legend,
:lang(th) .r5-adhesion { line-height: 1.75; }
.r5-layer-legend li > span {
  flex: 0 0 auto;
  padding-top: 3px;
  color: #8b6e37;
  font: 600 14px/1.6 var(--font-mono, monospace);
}
.r5-layer-legend strong,
.r5-layer-legend small { display: block; }
.r5-layer-legend strong { color: #263944; font-size: 17px; line-height: 1.5; }
.r5-layer-legend small { margin-top: 5px; color: #536874; font-size: 14px; line-height: 1.65; }
.r5-layer-legend li:first-child strong { color: #146a82; }

.r5-adhesion {
  display: grid;
  grid-template-columns: 1.15fr repeat(3, minmax(0, 1fr));
  align-items: center;
  gap: 24px;
  margin-top: 28px;
  padding: 28px 0;
  border-block: 1px solid #d9e0e4;
}
.r5-adhesion-heading h3 { margin: 0; color: #263944; font-size: 20px; line-height: 1.5; }
.r5-adhesion-heading a { display: inline-block; margin-top: 8px; color: #60727e; font-size: 13px; text-decoration: underline; text-underline-offset: 4px; }
.r5-adhesion dl { margin: 0; padding-left: 24px; border-left: 1px solid #d9e0e4; }
.r5-adhesion dt { min-height: 3.2em; color: #536874; font-size: 14px; line-height: 1.6; }
.r5-adhesion dd { margin: 8px 0 0; color: #263944; font-size: clamp(26px, 2.7vw, 38px); line-height: 1.2; font-weight: 550; white-space: nowrap; }
.r5-adhesion dd small { margin-left: 4px; font-size: 15px; font-weight: 400; }
.r5-adhesion .r5-criterion dd { color: #60727e; }
@media (max-width: 760px) {
  .r5-coating-section .r5-coating-caption { padding: 22px 20px; align-items: flex-start; flex-direction: column; gap: 7px; }
  .r5-layer-legend { grid-template-columns: 1fr; gap: 19px; margin-top: 25px; }
  .r5-layer-legend li { gap: 16px; }
  .r5-layer-legend small { margin-top: 2px; }
  .r5-adhesion { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 20px; }
  .r5-adhesion-heading { grid-column: 1 / -1; }
  .r5-adhesion dl { padding-left: 0; border: 0; }
  .r5-adhesion .r5-criterion { grid-column: 1 / -1; padding-top: 20px; border-top: 1px solid #d9e0e4; }
  .r5-adhesion .r5-criterion dd { font-size: 26px; }
  .r5-adhesion .r5-criterion dt { min-height: 0; }
}