/* RIAM: supplied implant illustration, 2026-09-23 */
body img.riam-implant-structure-image {
  display: block;
  width: 100%;
  height: auto !important;
  max-height: none !important;
  aspect-ratio: 4 / 3;
  object-fit: contain !important;
  padding: 0 !important;
}
.riam-structure-guide {
  padding: clamp(44px, 6vw, 80px) 0;
  background: #faf8f4;
  border-top: 1px solid #e6dfd2;
  border-bottom: 1px solid #e6dfd2;
  scroll-margin-top: 120px;
}
.riam-structure-guide > .wrap {
  width: min(1200px, calc(100% - 40px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(28px, 4vw, 60px);
}
.riam-structure-guide__figure { margin: 0; min-width: 0; }
.riam-structure-guide__figure figcaption {
  margin-top: 12px;
  font-size: 12px;
  line-height: 1.8;
  color: #627079;
}
.riam-structure-guide__copy { min-width: 0; }
.riam-structure-guide__copy .eyebrow { margin: 0 0 12px; color: #876634; }
.riam-structure-guide__copy h2 {
  margin: 0 0 18px;
  font-size: clamp(26px, 2.5vw, 34px);
  line-height: 1.65;
  color: #122b3e;
}
.riam-structure-guide__intro {
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.95;
  color: #4d606b;
}
.riam-structure-guide__parts { margin: 0; }
.riam-structure-guide__parts > div {
  border-top: 1px solid #d9cebd;
  padding: 15px 0;
}
.riam-structure-guide__parts dt {
  font-size: 17px;
  font-weight: 600;
  line-height: 1.7;
  color: #122b3e;
}
.riam-structure-guide__parts dt span {
  display: inline-block;
  margin-right: 12px;
  color: #876634;
  font: 18px / 1.5 Georgia, serif;
}
.riam-structure-guide__parts dd {
  margin: 5px 0 0 32px;
  font-size: 16px;
  line-height: 1.9;
  color: #4d606b;
}
.riam-structure-guide__copy .text-link { margin-top: 12px; font-size: 15px; }
@media (max-width: 800px) {
  .riam-structure-guide > .wrap { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .riam-structure-guide__figure { max-width: 640px; width: 100%; margin: auto; }
  .riam-structure-guide { scroll-margin-top: 90px; }
}
@media print {
  .riam-structure-guide { break-inside: avoid; padding: 24px 0; }
}

.riam-structure-guide, .riam-structure-guide * { box-sizing: border-box; }
.riam-structure-guide { display: block; width: 100%; margin: 0; text-align: left; }
.riam-structure-guide__copy .eyebrow { font-size: 12px; letter-spacing: .14em; line-height: 1.7; }
.riam-structure-guide__copy .text-link {
  display: inline-flex; align-items: center; gap: 20px; max-width: 100%;
  color: #122b3e; font-size: 15px; font-weight: 500; line-height: 1.8;
  text-decoration: none; padding: 10px 0; border-bottom: 1px solid #bca47e;
}
.riam-structure-guide__copy .text-link:hover { color: #876634; }
.riam-structure-guide__copy .text-link:focus-visible { outline: 2px solid #876634; outline-offset: 5px; }
.riam-structure-guide__arch-note { font-size: 15px; line-height: 1.9; margin: 14px 0 0; color: #4d606b; }
@media (max-width: 600px) {
  .riam-structure-guide__copy h2 { font-size: 25px; }
}