.page-common-joints {
  --joints-ink: #102631;
  --joints-deep: #071822;
  --joints-muted: #687982;
  --joints-line: #dde4e5;
  --joints-paper: #f6f7f3;
  --joints-red: #e8302f;
  --joints-green: #8eaa32;
  --joints-green-soft: #c6dc79;
}

.page-common-joints :where(.joint-intro,.joint-library,.joint-applications,.joint-selection,.joint-faq,.joint-final) {
  padding-block: clamp(5rem, 8vw, 7.5rem);
}

.page-common-joints :where(.joint-intro,.joint-library,.joint-applications,.joint-selection,.joint-faq,.joint-final) h2 {
  font-size: clamp(2rem, 3.2vw, 2.5rem);
  line-height: 1.14;
  letter-spacing: -.035em;
}

.page-common-joints :where(.joint-intro,.joint-library,.joint-applications,.joint-selection,.joint-faq,.joint-final) h2 span {
  color: var(--joints-red);
}

.common-joints-banner {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 23%, rgba(232,48,47,.18), transparent 30%),
    radial-gradient(circle at 18% 82%, rgba(142,170,50,.11), transparent 26%),
    linear-gradient(135deg, #07151e 0%, #102b38 57%, #091922 100%);
}

.common-joints-banner::after {
  content: '';
  position: absolute;
  right: -7rem;
  bottom: -9rem;
  width: 27rem;
  height: 27rem;
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 50%;
  box-shadow: 0 0 0 3rem rgba(255,255,255,.018), 0 0 0 6rem rgba(255,255,255,.012);
  pointer-events: none;
}

.joint-intro { background: #fff; }
.joint-intro__grid {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(420px, 1.08fr);
  align-items: center;
  gap: clamp(3rem, 7vw, 7rem);
}
.joint-intro__copy h2 { max-width: 43rem; margin-top: 1.25rem; color: var(--joints-ink); }
.joint-intro__text { margin-top: 1.45rem; }
.joint-intro__text p { color: var(--joints-muted); font-size: 1rem; line-height: 1.78; }
.joint-intro__text p + p { margin-top: .95rem; }
.joint-intro__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.8rem; }
.joint-intro__visual {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid #e3e6e2;
  border-radius: 1.8rem;
  background: #f3f2ed;
  box-shadow: 0 26px 65px rgba(7,24,34,.1);
}
.joint-intro__visual::after { content: ''; position: absolute; inset: 0; background: linear-gradient(to top, rgba(7,24,34,.9), transparent 42%); pointer-events: none; }
.joint-intro__visual img { width: 100%; aspect-ratio: 1.24 / 1; object-fit: cover; object-position: center; }
.joint-intro__visual figcaption { position: absolute; z-index: 1; right: 1.55rem; bottom: 1.45rem; left: 1.55rem; color: #fff; }
.joint-intro__visual figcaption span { color: var(--joints-green-soft); font-size: .68rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.joint-intro__visual figcaption strong { display: block; max-width: 29rem; margin-top: .5rem; font-size: 1.05rem; line-height: 1.5; }

.joint-family-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin-top: 3rem;
  border-block: 1px solid var(--joints-line);
}
.joint-family-strip li { display: grid; grid-template-columns: 2.15rem auto; grid-template-rows: auto auto; column-gap: .75rem; min-width: 0; padding: 1.1rem 1rem; }
.joint-family-strip li + li { border-left: 1px solid var(--joints-line); }
.joint-family-strip li > span { display: grid; grid-row: 1 / 3; width: 2.15rem; height: 2.15rem; place-items: center; border-radius: .7rem; color: var(--joints-red); background: #fff0ef; }
.joint-family-strip strong { color: var(--joints-ink); font-size: .76rem; line-height: 1.2; letter-spacing: .08em; }
.joint-family-strip small { margin-top: .22rem; overflow: hidden; color: var(--joints-muted); font-size: .68rem; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }

.joint-library { position: relative; overflow: hidden; background: var(--joints-paper); }
.joint-library__texture,
.joint-selection__texture { position: absolute; inset: 0; pointer-events: none; }
.joint-library__texture {
  opacity: .52;
  background-image:
    linear-gradient(rgba(16,38,49,.027) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16,38,49,.027) 1px, transparent 1px),
    radial-gradient(circle at 90% 10%, rgba(142,170,50,.1), transparent 24%);
  background-size: 54px 54px, 54px 54px, auto;
}
.joint-library__heading { max-width: 52rem; margin-inline: auto; text-align: center; }
.joint-library__heading h2 { margin-top: 1.25rem; color: var(--joints-ink); }
.joint-library__heading > p:last-child { max-width: 42rem; margin: 1.2rem auto 0; color: var(--joints-muted); font-size: 1rem; line-height: 1.75; }

.joint-tabs { margin-top: 3rem; }
.joint-tabs__list {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: .55rem;
  border: 1px solid #dce3e4;
  border-radius: 1.45rem;
  padding: .55rem;
  background: rgba(255,255,255,.74);
  box-shadow: 0 16px 38px rgba(7,24,34,.055);
  backdrop-filter: blur(12px);
}
.joint-tab {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0,1fr);
  grid-template-rows: auto auto;
  column-gap: .7rem;
  min-width: 0;
  border: 1px solid transparent;
  border-radius: 1rem;
  padding: .9rem .85rem;
  color: var(--joints-ink);
  text-align: left;
  transition: border-color .3s ease, background .3s ease, color .3s ease, box-shadow .3s ease, transform .3s ease;
}
.joint-tab:hover { border-color: rgba(142,170,50,.28); background: #f8faef; transform: translateY(-2px); }
.joint-tab:focus-visible { outline: 3px solid rgba(142,170,50,.28); outline-offset: 2px; }
.joint-tab > span { display: grid; grid-row: 1 / 3; width: 2rem; height: 2rem; place-items: center; align-self: center; border-radius: .62rem; background: #eef1f1; color: var(--joints-red); font-family: ui-monospace, monospace; font-size: .67rem; font-weight: 800; letter-spacing: .08em; transition: background .3s ease, color .3s ease; }
.joint-tab strong { font-size: .72rem; line-height: 1.25; white-space: normal; }
.joint-tab small { margin-top: .18rem; color: #849096; font-size: .64rem; }
.joint-tab.is-active { border-color: rgba(142,170,50,.24); background: var(--joints-ink); color: #fff; box-shadow: 0 12px 26px rgba(16,38,49,.15); }
.joint-tab.is-active > span { background: var(--joints-red); color: #fff; }
.joint-tab.is-active small { color: rgba(255,255,255,.55); }

.joint-panel { margin-top: 1.15rem; border: 1px solid #dce3e4; border-radius: 1.8rem; padding: clamp(1.25rem, 3vw, 2rem); background: rgba(255,255,255,.86); box-shadow: 0 22px 54px rgba(7,24,34,.06); }
.joint-panel[hidden] { display: none; }
.joint-panel.is-entering { animation: joint-panel-in .45s cubic-bezier(.22,1,.36,1) both; }
.joint-panel__header { display: grid; grid-template-columns: auto minmax(13rem,.5fr) minmax(18rem,1fr); align-items: center; gap: 1.2rem; padding: .25rem .25rem 1.5rem; border-bottom: 1px solid var(--joints-line); }
.joint-panel__header > div { display: flex; align-items: center; gap: .7rem; }
.joint-panel__header > div > span { display: grid; width: 2.35rem; height: 2.35rem; place-items: center; border-radius: .72rem; background: #fff0ef; color: var(--joints-red); }
.joint-panel__header > div p { color: var(--joints-green); font-size: .67rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; white-space: nowrap; }
.joint-panel__header h3 { color: var(--joints-ink); font-size: 1.15rem; line-height: 1.3; }
.joint-panel__header > p { color: var(--joints-muted); font-size: .84rem; line-height: 1.65; }

.joint-products { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 260px)); justify-content: start; gap: 1rem; margin-top: 1.5rem; }
.joint-product { position: relative; min-width: 0; overflow: hidden; border: 1px solid #e0e5e6; border-radius: 1.25rem; background: #fff; box-shadow: 0 12px 28px rgba(7,24,34,.045); transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease; }
.joint-product::after { content: ''; position: absolute; z-index: 3; right: 0; bottom: 0; left: 0; height: 3px; background: linear-gradient(90deg,var(--joints-red),var(--joints-green),var(--joints-red)); background-size: 220% 100%; transform: scaleX(0); transform-origin: left; transition: transform .35s cubic-bezier(.22,1,.36,1); }
.joint-product:hover { transform: translateY(-5px); border-color: rgba(142,170,50,.38); box-shadow: 0 22px 45px rgba(7,24,34,.1); }
.joint-product:hover::after { transform: scaleX(1); animation: joint-line 1.2s linear infinite; }
.joint-product__media { position: relative; overflow: hidden; aspect-ratio: 1; border-radius: 1.18rem 1.18rem 0 0; background: #f2f0eb; }
.joint-product__media img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.22,1,.36,1), filter .35s ease; }
.joint-product:hover .joint-product__media img { filter: saturate(1.05) contrast(1.02); transform: scale(1.018); }
.joint-product__media > span { position: absolute; z-index: 2; top: .8rem; left: .8rem; border: 1px solid rgba(255,255,255,.68); border-radius: 999px; padding: .4rem .62rem; background: rgba(16,38,49,.9); color: #fff; font-family: ui-monospace, monospace; font-size: .62rem; font-weight: 800; letter-spacing: .1em; box-shadow: 0 8px 20px rgba(7,24,34,.14); }
.joint-product__copy { padding: 1.05rem 1.05rem 1.2rem; }
.joint-product__copy > p { color: var(--joints-green); font-size: .63rem; font-weight: 800; letter-spacing: .13em; text-transform: uppercase; }
.joint-product__copy h4 { margin-top: .45rem; color: var(--joints-ink); font-size: .96rem; line-height: 1.38; }
.joint-product__copy > div { margin-top: .55rem; color: var(--joints-muted); font-size: .78rem; line-height: 1.62; }

.joint-applications { background: #fff; }
.joint-applications__heading { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(18rem,.95fr); align-items: end; gap: clamp(2.5rem,7vw,7rem); }
.joint-applications__heading h2 { max-width: 48rem; margin-top: 1.25rem; color: var(--joints-ink); }
.joint-applications__heading > p { color: var(--joints-muted); font-size: 1rem; line-height: 1.75; }
.joint-applications__grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); margin-top: 3rem; border-top: 1px solid var(--joints-line); border-left: 1px solid var(--joints-line); }
.joint-applications__grid article { display: grid; grid-template-columns: 2.65rem minmax(0,1fr); gap: 1rem; min-width: 0; padding: 1.45rem; border-right: 1px solid var(--joints-line); border-bottom: 1px solid var(--joints-line); }
.joint-applications__grid article > span { display: grid; width: 2.65rem; height: 2.65rem; place-items: center; border-radius: .78rem; background: #fff0ef; color: var(--joints-red); }
.joint-applications__grid h3 { color: var(--joints-ink); font-size: .95rem; line-height: 1.4; }
.joint-applications__grid p { margin-top: .45rem; color: var(--joints-muted); font-size: .81rem; line-height: 1.62; }

.joint-selection { position: relative; overflow: hidden; background: linear-gradient(135deg,#07151e,#102c39 64%,#091b25); color: #fff; }
.joint-selection__texture { opacity: .58; background-image: linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px),radial-gradient(circle at 84% 18%,rgba(232,48,47,.18),transparent 30%),radial-gradient(circle at 8% 88%,rgba(142,170,50,.09),transparent 25%); background-size: 58px 58px,58px 58px,auto,auto; }
.joint-selection__layout { display: grid; grid-template-columns: minmax(0,.78fr) minmax(0,1.22fr); align-items: center; gap: clamp(3rem,8vw,8rem); }
.joint-selection__intro h2 { margin-top: 1.25rem; }
.joint-selection__intro h2 span { color: var(--joints-green-soft); }
.joint-selection__intro > p:not(.eyebrow-dark) { margin-top: 1.35rem; color: rgba(255,255,255,.58); font-size: 1rem; line-height: 1.75; }
.joint-selection__intro .btn-primary { margin-top: 1.8rem; }
.joint-selection__steps { border-top: 1px solid rgba(255,255,255,.13); }
.joint-selection__steps li { display: grid; grid-template-columns: 3rem minmax(0,1fr); gap: 1rem; padding: 1.15rem 0; border-bottom: 1px solid rgba(255,255,255,.13); }
.joint-selection__steps li > span { padding-top: .18rem; color: #f0716e; font-family: ui-monospace, monospace; font-size: .7rem; font-weight: 800; letter-spacing: .12em; }
.joint-selection__steps h3 { color: #fff; font-size: 1rem; line-height: 1.4; }
.joint-selection__steps p { margin-top: .4rem; color: rgba(255,255,255,.53); font-size: .84rem; line-height: 1.65; }

.joint-faq { background: var(--joints-paper); }
.joint-faq__heading { max-width: 46rem; margin-inline: auto; text-align: center; }
.joint-faq__heading h2 { margin-top: 1.25rem; color: var(--joints-ink); }
.joint-faq__grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); align-items: start; gap: 1rem; margin-top: 3rem; }
.joint-faq__item { overflow: hidden; border: 1px solid #dce3e4; border-radius: 1.2rem; background: #fff; box-shadow: 0 12px 28px rgba(7,24,34,.04); }
.joint-faq__item summary { display: grid; grid-template-columns: 2rem minmax(0,1fr) 2.25rem; align-items: center; gap: .8rem; min-height: 5.25rem; padding: .85rem 1rem; cursor: pointer; list-style: none; }
.joint-faq__item summary::-webkit-details-marker { display: none; }
.joint-faq__item summary > span { color: var(--joints-red); font-family: ui-monospace, monospace; font-size: .66rem; font-weight: 800; letter-spacing: .1em; }
.joint-faq__item summary h3 { color: var(--joints-ink); font-size: .9rem; line-height: 1.5; }
.joint-faq__item summary i { display: grid; width: 2.25rem; height: 2.25rem; place-items: center; justify-self: end; border-radius: 50%; background: #f0f4e5; color: var(--joints-green); transition: transform .3s, background .3s, color .3s; }
.joint-faq__item[open] { border-color: rgba(142,170,50,.34); }
.joint-faq__item[open] summary i { transform: rotate(45deg); background: var(--joints-ink); color: var(--joints-green-soft); }
.joint-faq__item > p { padding: 0 1rem 1.25rem 3.8rem; color: var(--joints-muted); font-size: .88rem; line-height: 1.72; }

.joint-final { background: #fff; }
.joint-final__panel { position: relative; display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 3rem; overflow: hidden; border: 1px solid #dfe4e5; border-radius: 2rem; padding: clamp(2rem,5vw,4rem); background: linear-gradient(120deg,#fff,#fafafa 56%,#f2f7e5); box-shadow: 0 24px 60px rgba(7,24,34,.07); }
.joint-final__panel::after { content: ''; position: absolute; right: -8rem; top: -11rem; width: 25rem; height: 25rem; border-radius: 50%; background: radial-gradient(circle,rgba(142,170,50,.17),transparent 68%); }
.joint-final__panel > * { position: relative; z-index: 1; }
.joint-final h2 { max-width: 52rem; margin-top: 1.1rem; color: var(--joints-ink); }
.joint-final p:not(.eyebrow) { max-width: 48rem; margin-top: 1rem; color: var(--joints-muted); font-size: .95rem; line-height: 1.72; }
.joint-final__actions { display: flex; flex-direction: column; gap: .7rem; }
.joint-final__actions a { justify-content: center; }

@keyframes joint-panel-in { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
@keyframes joint-line { to { background-position: -220% 0; } }

@media (max-width: 1100px) {
  .joint-intro__grid { grid-template-columns: minmax(0,1fr) minmax(360px,.92fr); gap: 3.5rem; }
  .joint-family-strip { grid-template-columns: repeat(3,minmax(0,1fr)); border-left: 1px solid var(--joints-line); }
  .joint-family-strip li { border-right: 1px solid var(--joints-line); border-bottom: 1px solid var(--joints-line); }
  .joint-family-strip li + li { border-left: 0; }
  .joint-tabs__list { grid-template-columns: repeat(3,minmax(0,1fr)); }
}

@media (max-width: 900px) {
  .page-common-joints :where(.joint-intro,.joint-library,.joint-applications,.joint-selection,.joint-faq,.joint-final) { padding-block: 5rem; }
  .joint-intro__grid,
  .joint-selection__layout { grid-template-columns: 1fr; }
  .joint-intro__visual { max-width: 44rem; margin-inline: auto; }
  .joint-applications__grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .joint-final__panel { grid-template-columns: 1fr; }
  .joint-final__actions { flex-direction: row; flex-wrap: wrap; }
}

@media (max-width: 720px) {
  .joint-tabs__list { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; }
  .joint-tabs__list::-webkit-scrollbar { display: none; }
  .joint-tab { flex: 0 0 12.25rem; scroll-snap-align: start; }
  .joint-panel__header { grid-template-columns: 1fr; gap: .65rem; }
  .joint-panel__header > p { max-width: 34rem; }
  .joint-faq__grid { grid-template-columns: 1fr; }
}

@media (max-width: 639px) {
  .page-common-joints :where(.joint-intro,.joint-library,.joint-applications,.joint-selection,.joint-faq,.joint-final) { padding-block: 4rem; }
  .page-common-joints :where(.joint-intro,.joint-library,.joint-applications,.joint-selection,.joint-faq,.joint-final) h2 { font-size: clamp(1.75rem,8vw,2.05rem); line-height: 1.18; }
  .joint-intro__grid { gap: 2.5rem; }
  .joint-intro__actions { flex-direction: column; align-items: stretch; }
  .joint-intro__actions a { justify-content: center; text-align: center; white-space: normal; }
  .joint-intro__visual { border-radius: 1.35rem; }
  .joint-intro__visual img { aspect-ratio: 1 / 1.06; }
  .joint-intro__visual figcaption { right: 1.1rem; bottom: 1.05rem; left: 1.1rem; }
  .joint-family-strip { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .joint-family-strip li { padding: .9rem .75rem; }
  .joint-family-strip small { white-space: normal; }
  .joint-library__heading { text-align: left; }
  .joint-library__heading > p:last-child { margin-left: 0; }
  .joint-tabs { margin-top: 2.1rem; }
  .joint-tabs__list { margin-inline: -1rem; border-inline: 0; border-radius: 0; padding-inline: 1rem; }
  .joint-panel { margin-inline: -.25rem; border-radius: 1.35rem; padding: 1rem; }
  .joint-panel__header { padding-bottom: 1.1rem; }
  .joint-products { grid-template-columns: 1fr; }
  .joint-product { display: grid; grid-template-columns: 8.5rem minmax(0,1fr); min-height: 8.5rem; border-radius: 1.15rem; }
  .joint-product__media { height: 100%; min-height: 8.5rem; aspect-ratio: auto; border-radius: 1.08rem 0 0 1.08rem; }
  .joint-product__copy { align-self: center; padding: .9rem; }
  .joint-product__copy h4 { font-size: .88rem; }
  .joint-product__copy > div { display: -webkit-box; overflow: hidden; font-size: .73rem; -webkit-box-orient: vertical; -webkit-line-clamp: 3; }
  .joint-product__media > span { top: .55rem; left: .55rem; padding: .3rem .48rem; }
  .joint-applications__heading { grid-template-columns: 1fr; gap: 1.25rem; }
  .joint-applications__grid { grid-template-columns: 1fr; }
  .joint-applications__grid article { padding: 1.15rem; }
  .joint-selection__layout { gap: 2.5rem; }
  .joint-selection__intro .btn-primary { width: 100%; justify-content: center; white-space: normal; text-align: center; }
  .joint-selection__steps li { grid-template-columns: 2.4rem minmax(0,1fr); }
  .joint-faq__heading { text-align: left; }
  .joint-faq__item summary { grid-template-columns: 1.65rem minmax(0,1fr) 2rem; gap: .55rem; padding-inline: .8rem; }
  .joint-faq__item summary h3 { font-size: .84rem; }
  .joint-faq__item summary i { width: 2rem; height: 2rem; }
  .joint-faq__item > p { padding: 0 .85rem 1.15rem 3rem; font-size: .84rem; }
  .joint-final__panel { border-radius: 1.4rem; padding: 1.5rem; }
  .joint-final__actions { flex-direction: column; }
  .joint-final__actions a { white-space: normal; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .joint-tab,
  .joint-product,
  .joint-product__media img { transition: none; }
  .joint-panel.is-entering,
  .joint-product:hover::after { animation: none; }
}