/* saiwei shared css — extracted from identical/majority rules of the
 * saiwei-p001..p031 static pages. Page-specific rules and minority
 * overrides stay in each page's local <style> (loaded after this file). */
.saiwei-page *,
.saiwei-page *::before,
.saiwei-page *::after {
  box-sizing: border-box;
}

.saiwei-page a {
  color: inherit;
  text-decoration: none;
}

.saiwei-page a:focus-visible,
.saiwei-page button:focus-visible,
.saiwei-page summary:focus-visible {
  outline: 3px solid #c7ff2e;
  outline-offset: 4px;
}

.saiwei-page .container {
  width: var(--content);
  margin-inline: auto;
}

.saiwei-page .skip-link {
  position: fixed;
  z-index: 9999;
  top: 10px;
  left: 10px;
  transform: translateY(-180%);
  padding: 11px 15px;
  border: 1px solid var(--silver-300);
  border-radius: 12px;
  background: var(--cream);
  font-weight: 850;
}

.saiwei-page .skip-link:focus {
  transform: none;
}

.saiwei-page .kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #0b0d10;
  font-size: 0.7rem;
  font-weight: 950;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.saiwei-page .section-copy {
  margin: 19px 0 0;
  max-width: 780px;
  color: var(--muted);
  font-size: 1rem;
}

.saiwei-page .btn svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.saiwei-page .btn-primary {
  background: var(--blue-700);
  color: #0b0d10;
  box-shadow: 0 14px 34px rgba(11, 13, 16, 0.2);
}

.saiwei-page .btn-primary:hover {
  background: #b8f625;
  transform: translateY(-2px);
}

.saiwei-page .btn-outline:hover {
  background: var(--silver-100);
}

.saiwei-page .site-header {
  position: relative;
  z-index: 40;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--line-soft);
  backdrop-filter: blur(16px);
}

.saiwei-page .brand-mark svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.saiwei-page .desktop-nav a:hover {
  color: #0b0d10;
}

.saiwei-page .mobile-menu a {
  display: block;
  padding: 13px 12px;
  border-bottom: 1px solid var(--line-soft);
  font-weight: 760;
}

.saiwei-page .hero .display em {
  font-style: normal;
  color: #2563eb;
}

.saiwei-page .hero-lead {
  max-width: 800px;
  margin: 28px 0 0;
  color: #555555;
  font-size: clamp(1.05rem, 1.5vw, 1.22rem);
  line-height: 1.72;
}

.saiwei-page .materials {
  background: var(--silver-100);
  padding: 60px 0;
}

.saiwei-page .material-code {
  font-size: 0.66rem;
  font-weight: 950;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.saiwei-page .material-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 25px;
}

.saiwei-page .size-lab {
  padding: 80px 0;
  background: var(--cream);
}

.saiwei-page .size-board {
  border: 1px solid var(--silver-300);
  background: var(--silver-50);
}

.saiwei-page .size-row:last-child {
  border-bottom: 0;
}

.saiwei-page .size-row:hover {
  background: var(--blue-100);
}

.saiwei-page .size-row span:first-child {
  font-weight: 900;
  color: var(--blue-900);
}

.saiwei-page .process-head {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: end;
}

.saiwei-page .audience {
  padding: 75px 0;
  background: var(--cream);
}

.saiwei-page .audience-head {
  max-width: 850px;
}

.saiwei-page .faq {
  padding: 98px 0;
  background: var(--cream);
}

.saiwei-page .guide-link:hover {
  padding-left: 12px;
  background: var(--blue-100);
}

.saiwei-page .site-footer {
  background: #0b0d10;
  color: #afafaf;
}

.saiwei-page .mobile-sticky {
  display: none;
}

.saiwei-page .hero-spec:last-child {
  border-right: 0;
}

.saiwei-page .customize {
  padding: 75px 0;
  background: var(--cream);
}

.saiwei-page .size-side {
  position: sticky;
  top: 30px;
}

.saiwei-page .size-side p {
  color: var(--muted);
}

.saiwei-page .size-scale {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--silver-600);
  font-size: 0.72rem;
}

.saiwei-page .size-bar {
  height: 6px;
  background: linear-gradient(90deg, var(--silver-400), var(--blue-700));
}

.saiwei-page .size-note {
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--silver-300);
  color: var(--muted);
  font-size: 0.82rem;
}

.saiwei-page .process-step {
  position: relative;
  padding: 29px 22px 0 0;
  min-height: 165px;
}

.saiwei-page .process-step b {
  display: block;
  margin-top: 13px;
  font-size: 1.02rem;
  line-height: 1.25;
}

.saiwei-page .faq-item {
  border-bottom: 1px solid var(--silver-300);
}

.saiwei-page .faq-item summary::-webkit-details-marker {
  display: none;
}

.saiwei-page .faq-item[open] summary::after {
  content: "−";
}

.saiwei-page .related-card:hover {
  background: var(--blue-100);
  transform: translateY(-2px);
}

.saiwei-page .hero-arena {
  position: relative;
  min-height: 820px;
  padding: 58px 0 46px 54px;
  color: #fff;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 26px;
}

.saiwei-page .arena-top {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.saiwei-page .arena-label {
  font-size: 0.68rem;
  font-weight: 950;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--blue-300);
}

.saiwei-page .arena-code {
  font-size: 0.72rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.65);
}

.saiwei-page .arena-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.11) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.11) 1px, transparent 1px);
  background-size: 38px 38px;
  opacity: 0.28;
}

.saiwei-page .asset-placeholder {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 310px;
  padding: 34px;
}

.saiwei-page .asset-placeholder .guard-pair {
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  margin-bottom: 26px;
}

.saiwei-page .guard-shape {
  width: 92px;
  height: 218px;
  border: 1px solid rgba(255, 255, 255, 0.62);
  background: linear-gradient(
    160deg,
    rgba(255, 255, 255, 0.18),
    rgba(255, 255, 255, 0.04)
  );
  clip-path: polygon(
    27% 0,
    73% 0,
    94% 12%,
    100% 46%,
    84% 88%,
    58% 100%,
    42% 100%,
    16% 88%,
    0 46%,
    6% 12%
  );
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.saiwei-page .guard-shape:first-child {
  transform: rotate(-6deg);
}

.saiwei-page .guard-shape:last-child {
  transform: rotate(6deg);
}

.saiwei-page .asset-placeholder strong {
  display: block;
  font-size: 0.88rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.saiwei-page .arena-spec:last-child {
  border-right: 0;
}

.saiwei-page .arena-spec b {
  display: block;
  margin-top: 7px;
  font-size: 0.82rem;
}

.saiwei-page .trust-rail {
  background: var(--silver-100);
  border-bottom: 1px solid var(--silver-300);
}

.saiwei-page .trust-grid {
  width: var(--content);
  margin: auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.saiwei-page .trust-item {
  padding: 15px 12px;
  border-right: 1px solid var(--silver-300);
  display: flex;
  align-items: center;
  gap: 16px;
}

.saiwei-page .trust-item:last-child {
  border-right: 0;
}

.saiwei-page .trust-num {
  font-size: 1.65rem;
  font-weight: 300;
  color: var(--silver-500);
}

.saiwei-page .trust-item b {
  display: block;
  color: var(--blue-900);
  font-size: 0.9rem;
}

.saiwei-page .trust-item span {
  display: block;
  margin-top: 3px;
  color: var(--silver-600);
  font-size: 0.8rem;
}

.saiwei-page .answer-copy {
  margin: 0;
  max-width: 980px;
  color: var(--blue-950);
  font-size: clamp(1.25rem, 2vw, 1.3rem);
  line-height: 1.45;
  letter-spacing: -0.018em;
}

.saiwei-page .custom-head {
  display: grid;
  grid-template-columns: 1fr 0.75fr;
  gap: 70px;
  align-items: end;
}

.saiwei-page .custom-head .section-copy {
  margin: 0;
}

.saiwei-page .custom-board {
  margin-top: 55px;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  border: 1px solid var(--silver-300);
  background: var(--cream-2);
}

.saiwei-page .custom-visual-inner b {
  display: block;
  font-size: 1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.saiwei-page .custom-visual-inner span {
  display: block;
  margin-top: 8px;
  color: var(--silver-600);
  font-size: 0.74rem;
}

.saiwei-page .custom-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.saiwei-page .custom-option {
  padding: 30px;
  border-right: 1px solid var(--silver-300);
  border-bottom: 1px solid var(--silver-300);
  transition: 0.18s ease;
}

.saiwei-page .custom-option:nth-child(2n) {
  border-right: 0;
}

.saiwei-page .custom-option:nth-last-child(-n + 2) {
  border-bottom: 0;
}

.saiwei-page .custom-option:hover {
  background: var(--blue-100);
}

.saiwei-page .option-num {
  font-size: 1.65rem;
  font-weight: 300;
  color: var(--silver-400);
}

.saiwei-page .custom-option h3 {
  margin: 18px 0 0;
  color: var(--blue-950);
  font-size: 1.18rem;
  line-height: 1.1;
}

.saiwei-page .custom-option p {
  margin: 9px 0 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.saiwei-page .materials-head {
  max-width: 850px;
}

.saiwei-page .material-top {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
}

.saiwei-page .material-card.carbon .material-code {
  color: var(--blue-300);
}

.saiwei-page .material-card.plastic .material-code {
  color: var(--silver-600);
}

.saiwei-page .material-stage {
  display: grid;
  place-items: center;
  min-height: 315px;
}

.saiwei-page .material-stage .guard-shape {
  width: 98px;
  height: 230px;
}

.saiwei-page .material-copy h3 {
  margin: 0;
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
}

.saiwei-page .flagship {
  padding: 75px 0;
  background: var(--cream-2);
}

.saiwei-page .flagship-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: stretch;
}

.saiwei-page .flagship-visual {
  min-height: 590px;
  padding: 34px;
  background: linear-gradient(145deg, var(--silver-200), var(--silver-400));
  display: grid;
  place-items: center;
  border: 1px solid var(--silver-400);
}

.saiwei-page .flagship-placeholder {
  width: 100%;
  border: 1px solid var(--silver-500);
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.72),
    rgba(255, 255, 255, 0.28)
  );
  display: grid;
  place-items: center;
  text-align: center;
  padding: 0px;
  color: var(--blue-900);
}

.saiwei-page .flagship-copy {
  align-self: center;
}

.saiwei-page .evidence-principles {
  margin-top: 34px;
  border-top: 1px solid var(--silver-300);
}

.saiwei-page .evidence-row span {
  color: var(--silver-400);
  font-size: 1.15rem;
  font-weight: 300;
}

.saiwei-page .evidence-row b {
  color: var(--blue-950);
  font-size: 0.9rem;
}

.saiwei-page .evidence-row p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.saiwei-page .process-spec {
  background: var(--cream);
  color: var(--blue-950);
  border: 1px solid rgba(255, 255, 255, 0.4);
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.saiwei-page .process-spec div {
  padding: 22px;
  border-right: 1px solid var(--silver-300);
}

.saiwei-page .process-spec div:last-child {
  border-right: 0;
}

.saiwei-page .process-spec small {
  display: block;
  color: var(--silver-600);
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.saiwei-page .process-spec b {
  display: block;
  margin-top: 7px;
  font-size: 1.35rem;
}

.saiwei-page .audience-card p {
  color: var(--muted);
  font-size: 1rem;
}

.saiwei-page .testing-head {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  align-items: end;
}

.saiwei-page .testing-head .section-copy {
  margin: 0;
}

.saiwei-page .test-board {
  margin-top: 54px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 24px;
}

.saiwei-page .test-intro {
  padding: 40px;
  background: var(--blue-900);
  color: #fff;
  min-height: 430px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.saiwei-page .test-intro h3 {
  margin: 0;
  font-size: 2.1rem;
  line-height: 1;
  letter-spacing: -0.04em;
}

.saiwei-page .test-item small {
  color: var(--silver-500);
  font-size: 0.61rem;
  font-weight: 900;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.saiwei-page .test-item b {
  display: block;
  margin-top: 9px;
  color: var(--blue-950);
  font-size: 0.95rem;
}

.saiwei-page .test-item span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.8rem;
}

.saiwei-page .shipping-head {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 70px;
  align-items: end;
}

.saiwei-page .shipping-head .section-copy {
  margin: 0;
}

.saiwei-page .ship-card:last-child {
  border-right: 0;
}

.saiwei-page .ship-code {
  font-size: 0.64rem;
  font-weight: 950;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--blue-300);
}

.saiwei-page .ship-card h3 {
  margin: 17px 0 0;
  font-size: 1.8rem;
  line-height: 1;
}

.saiwei-page .learn {
  padding: 75px 0;
  background: var(--cream-2);
}

.saiwei-page .learn-grid {
  margin-top: 40px;
  border-top: 1px solid var(--silver-300);
  grid-template-columns: repeat(2, 1fr);
  display: grid;
}

.saiwei-page .guide-num {
  color: var(--silver-400);
  font-size: 1.35rem;
  font-weight: 300;
}

.saiwei-page .guide-link h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.12rem;
}

.saiwei-page .guide-link p {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.saiwei-page .faq-index {
  font-size: 7rem;
  line-height: 0.8;
  color: var(--silver-200);
  font-weight: 950;
  letter-spacing: -0.08em;
}

.saiwei-page .footer-links b {
  display: block;
  color: white;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
}

.saiwei-page .footer-links a:hover {
  color: #fff;
}

.saiwei-page .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.45s ease,
    transform 0.45s ease;
}

.saiwei-page .reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 1080px) {
  .saiwei-page .custom-board,
  .saiwei-page .flagship-grid,
  .saiwei-page .test-board {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .saiwei-page .hero-arena {
    min-height: 620px;
    padding: 80px 0 38px;
  }
}

@media (max-width: 900px) {
  .saiwei-page .arena-stage {
    min-height: 400px;
  }
}

@media (max-width: 900px) {
  .saiwei-page .trust-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 900px) {
  .saiwei-page .trust-item:nth-child(2) {
    border-right: 0;
  }
}

@media (max-width: 900px) {
  .saiwei-page .trust-item:nth-child(-n + 2) {
    border-bottom: 1px solid var(--silver-300);
  }
}

@media (max-width: 620px) {
  .saiwei-page .hero-arena {
    min-height: 560px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .arena-stage {
    min-height: 330px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .asset-placeholder .guard-pair {
    height: 190px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .guard-shape {
    width: 72px;
    height: 174px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .arena-specs {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .saiwei-page .arena-spec:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 620px) {
  .saiwei-page .trust-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .saiwei-page .trust-item {
    border-right: 0;
    border-bottom: 1px solid var(--silver-300) !important;
  }
}

@media (max-width: 620px) {
  .saiwei-page .trust-item:last-child {
    border-bottom: 0 !important;
  }
}

@media (max-width: 620px) {
  .saiwei-page .custom-options {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .saiwei-page .custom-option {
    border-right: 0 !important;
    border-bottom: 1px solid var(--silver-300) !important;
  }
}

@media (max-width: 620px) {
  .saiwei-page .custom-option:last-child {
    border-bottom: 0 !important;
  }
}

@media (max-width: 620px) {
  .saiwei-page .material-stage {
    min-height: 260px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .flagship-grid {
    gap: 34px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .flagship-visual {
    min-height: 420px;
    padding: 18px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .flagship-placeholder {
    min-height: 380px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .process-spec {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .saiwei-page .process-spec div {
    border-right: 0;
    border-bottom: 1px solid var(--silver-300);
  }
}

@media (max-width: 620px) {
  .saiwei-page .process-spec div:last-child {
    border-bottom: 0;
  }
}

@media (max-width: 620px) {
  .saiwei-page .guide-link p {
    display: none;
  }
}

@media (max-width: 620px) {
  .saiwei-page .faq-index {
    font-size: 5.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .saiwei-page .reveal {
    opacity: 1;
    transform: none;
  }
}

.saiwei-page .hero.hero-video-section::before {
  display: none;
}

.saiwei-page .hero-video-media,
.saiwei-page .hero-video,
.saiwei-page .hero-video-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.saiwei-page .hero-video-media {
  z-index: -2;
  background: linear-gradient(135deg, var(--blue-950), var(--blue-800));
}

.saiwei-page .hero-video {
  max-width: none;
  object-fit: cover;
  object-position: center 48%;
  background: var(--blue-950);
}

.saiwei-page .hero-video-content {
  position: relative;
  z-index: 2;
  width: var(--content);
  min-height: calc(100svh - 76px);
  margin-inline: auto;
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  padding-block: clamp(80px, 12vh, 150px) clamp(44px, 7vh, 82px);
}

.saiwei-page .hero-video-section .hero-copy {
  max-width: 880px;
  padding: 0;
  display: grid;
  gap: 20px;
  align-self: auto;
}

.saiwei-page .hero-video-section .hero-eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--blue-300);
}

.saiwei-page .hero-video-section .hero-lead {
  margin: 0;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(1.05rem, 1.55vw, 1.25rem);
  line-height: 1.6;
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.22);
}

.saiwei-page .hero-video-section .hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-top: 4px;
}

.saiwei-page .hero-video-section .btn-primary {
  background: #c7ff2e;
  color: var(--blue-950);
  border-color: var(--cream);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.18);
}

.saiwei-page .hero-btn-ghost:hover,
.saiwei-page .hero-btn-ghost:focus-visible {
  background: rgba(255, 255, 255, 0.14);
  border-color: #fff;
  transform: translateY(-1px);
}

.saiwei-page .hero-video-section .hero-note {
  display: block;
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 0.84rem;
  font-weight: 760;
}

.saiwei-page .hero-video-section .hero-note::before {
  display: none;
}

.saiwei-page .hero-video-toggle-icon {
  width: 18px;
  text-align: center;
  font-size: 14px;
  line-height: 1;
}

@media (max-width: 767px) {
  .saiwei-page .hero.hero-video-section {
    min-height: min(860px, calc(100svh - 68px));
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-content {
    min-height: min(860px, calc(100svh - 68px));
    width: min(calc(100% - 26px), 1350px);
    align-items: flex-end;
    padding-block: 84px 34px;
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-section .hero-copy {
    max-width: 100%;
    gap: 16px;
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-section .hero-lead {
    font-size: 17px;
    line-height: 1.5;
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-section .hero-actions {
    width: 100%;
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-section .hero-actions .btn,
  .saiwei-page .hero-video-section .hero-actions .hero-btn-ghost {
    width: 100%;
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-toggle {
    position: absolute;
    top: 18px;
    right: 0;
  }
}

@media (max-width: 767px) {
  .saiwei-page .hero-video-toggle-text {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .saiwei-page .hero-video {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .saiwei-page .hero-video-toggle {
    display: none;
  }
}

.saiwei-page .crumb-wrap {
  max-width: var(--avy-container);
  margin: 0px auto;
  padding: 0px 20px;
  background: var(--cream-2);
  border-bottom: 1px solid var(--line-soft);
}

.saiwei-page .faq-intro h2 {
  margin: 12px 0 0;
  font-size: clamp(2.5rem, 4.7vw, 3.3rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
  color: var(--deep);
}

.saiwei-page .btn-secondary:hover {
  background: #fff;
  transform: translateY(-2px);
}

.saiwei-page .breadcrumb-wrap {
  background: var(--cream-2);
}

.saiwei-page .hero-visual.is-missing img {
  display: none;
}

.saiwei-page .quick-answer {
  padding: 0 0 72px;
}

.saiwei-page .quick-card strong {
  color: #0b0d10;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.saiwei-page .section {
  padding: 88px 0;
}

.saiwei-page details > div p + p {
  margin-top: 10px;
}

.saiwei-page .final-card h2 {
  margin: 10px 0 0;
  font-size: clamp(2.5rem, 5vw, 3.3rem);
  line-height: 0.96;
  letter-spacing: -0.055em;
}

.saiwei-page .final-card p {
  max-width: 770px;
  color: #ebebeb;
}

.saiwei-page .final .btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}

@media (max-width: 767px) {
  .saiwei-page .section {
    padding: 66px 0;
  }
}

.saiwei-page .pending-box strong {
  color: var(--blue-900);
}

.saiwei-page .research-card h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.45rem;
}

.saiwei-page .research-card li + li {
  margin-top: 6px;
}

.saiwei-page .hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 22px;
}

.saiwei-page .tests {
  padding: 100px 0;
  background: var(--silver-50);
}

.saiwei-page .table-scroll {
  overflow-x: auto;
}

.saiwei-page .faq-layout {
  display: grid;
  grid-template-columns: 0.72fr 1.28fr;
  gap: 58px;
  align-items: start;
}

/* Neutralize the legacy global .faq-list{max-width:850px;margin:0 auto} from
   avy-design-system.css: its auto margins stop grid items stretching to their
   track (list shrinks to content width when closed, then jumps to the 850px
   cap when an answer opens). Saiwei FAQ lists must fill their layout column. */
.saiwei-page .faq-list {
  max-width: none;
  margin: 0;
}

.saiwei-page .final-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 36px;
  align-items: end;
}

@media (max-width: 1100px) {
  .saiwei-page .final-inner {
    grid-template-columns: 1fr;
  }
}

.saiwei-page .artboard-head strong {
  font-size: 0.76rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--blue-900);
}

.saiwei-page .quick {
  padding: 60px 0;
  background: var(--cream);
}

.saiwei-page .check-circle {
  width: 28px;
  height: 28px;
  border: 1px solid var(--silver-300);
  border-radius: 9px;
  background: #fff;
}

.saiwei-page .short {
  padding: 82px 0;
  background: var(--cream);
}

.saiwei-page .short-card {
  padding: 30px 34px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
}

.saiwei-page .short-card strong {
  color: #0b0d10;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.saiwei-page .short-card p {
  margin: 0;
  color: #555555;
  font-size: 1.04rem;
  line-height: 1.72;
}

.saiwei-page .fit {
  padding: 98px 0;
  background: var(--cream);
}

.saiwei-page .decision {
  padding: 98px 0;
  background: var(--cream);
}

.saiwei-page .table-card {
  margin-top: 30px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.saiwei-page .check-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 30px;
}

@media (max-width: 780px) {
  .saiwei-page .short-card {
    padding: 25px;
  }
}

.saiwei-page .route-no {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 13px;
  background: var(--blue-100);
  color: #0b0d10;
  font-size: 0.66rem;
  font-weight: 950;
}

.saiwei-page .uk .kicker {
  color: var(--blue-300);
}

.saiwei-page .uk .section-copy {
  color: rgba(255, 255, 255, 0.72);
}

.saiwei-page .form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.saiwei-page .field.full {
  grid-column: 1/-1;
}

.saiwei-page input[type="file"] {
  padding: 10px;
  background: #fff;
}

.saiwei-page .policy-board {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, #fff, var(--silver-100));
  box-shadow: var(--shadow);
}

.saiwei-page .policy-board-head strong {
  font-size: 0.76rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--blue-900);
}

.saiwei-page .custom-panel {
  padding: 30px;
  border-radius: 30px;
  background: var(--cream);
  color: var(--ink);
  box-shadow: var(--shadow);
}

.saiwei-page .custom-panel h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.28rem;
}

.saiwei-page .retention {
  padding: 98px 0;
  background: var(--cream);
}

.saiwei-page .ret-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 30px;
}

.saiwei-page .ret-card h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.18rem;
}

.saiwei-page .mistake-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 30px;
}

.saiwei-page .mistake-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.saiwei-page .mistake-card span {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: var(--silver-100);
  color: #0b0d10;
  font-size: 0.64rem;
  font-weight: 950;
}

.saiwei-page .mistake-card h3 {
  margin: 22px 0 0;
  color: var(--blue-950);
  font-size: 1rem;
}

.saiwei-page .visuals {
  padding: 96px 0;
  background: var(--cream-2);
}

.saiwei-page .visual-media {
  height: 180px;
  background: linear-gradient(145deg, var(--blue-100), var(--silver-100));
  position: relative;
}

.saiwei-page .visual-media img {
  position: absolute;
  inset: 0;
}

.saiwei-page .visual-media.is-missing img {
  display: none;
}

.saiwei-page .visual-media:not(.is-missing) .visual-placeholder {
  display: none;
}

.saiwei-page .visual-copy {
  padding: 17px;
}

.saiwei-page .visual-copy strong {
  display: block;
  color: var(--blue-950);
  font-size: 0.84rem;
}

.saiwei-page .visual-copy span {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.8rem;
}

.saiwei-page .route-board {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: linear-gradient(145deg, #fff, var(--silver-100));
  box-shadow: var(--shadow);
}

.saiwei-page .route-board-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.saiwei-page .route-board-head strong {
  font-size: 0.76rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--blue-900);
}

.saiwei-page .pending-pill {
  display: inline-flex;
  padding: 7px 10px;
  border-radius: 999px;
  background: var(--cream-3);
  color: var(--silver-700);
  font-size: 0.6rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.saiwei-page .answer-box {
  margin-top: 20px;
  padding: 24px;
  border-radius: 24px;
  background: var(--blue-900);
  color: #fff;
}

.saiwei-page .answer-box span {
  font-size: 0.62rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--blue-300);
}

.saiwei-page .board-note {
  margin-top: 16px;
  padding: 15px;
  border-radius: 16px;
  background: var(--cream);
  border: 1px solid var(--line);
  color: #555555;
  font-size: 0.74rem;
}

.saiwei-page .rights-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.saiwei-page .rights-panel h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.25rem;
}

.saiwei-page .rights-panel p {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 0.81rem;
}

.saiwei-page .rights-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 18px;
}

.saiwei-page .rights-list span {
  padding: 12px;
  border-radius: 14px;
  background: var(--cream-2);
  border: 1px solid var(--line);
  color: #555555;
  font-size: 0.72rem;
}

.saiwei-page a:focus-visible,
.saiwei-page button:focus-visible {
  outline: 3px solid #c7ff2e;
  outline-offset: 4px;
}

.saiwei-page .status.confirmed {
  background: var(--blue-100);
  color: #2563eb;
}

.saiwei-page .toc {
  position: sticky;
  top: 22px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(145deg, #fff, var(--silver-50));
  box-shadow: var(--shadow-sm);
  max-height: calc(100vh - 44px);
  overflow: auto;
}

.saiwei-page .toc h2 {
  margin: 0;
  color: var(--blue-950);
  font-size: 0.95rem;
}

.saiwei-page .toc-list {
  display: grid;
  gap: 6px;
  margin-top: 15px;
}

.saiwei-page .toc-list a {
  padding: 8px 10px;
  border-radius: 10px;
  color: #555555;
  font-size: 0.9rem;
  font-weight: 720;
}

.saiwei-page .toc-list a:hover {
  background: var(--blue-100);
  color: #2563eb;
}

.saiwei-page .toc .notice {
  margin-top: 16px;
  padding: 12px;
  border-radius: 13px;
  background: var(--cream-2);
  color: #505050;
  font-size: 0.67rem;
}

.saiwei-page .legal-section {
  scroll-margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.saiwei-page .legal-section h2 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.34rem;
  letter-spacing: -0.025em;
}

.saiwei-page .legal-section h3 {
  margin: 20px 0 0;
  color: var(--blue-950);
  font-size: 0.94rem;
}

.saiwei-page .legal-section p {
  margin: 12px 0 0;
  color: #636363;
  font-size: 1.05rem;
}

.saiwei-page .legal-section ul {
  margin: 12px 0 0;
  padding-left: 18px;
  color: #636363;
  font-size: 1rem;
}

.saiwei-page .legal-section li + li {
  margin-top: 5px;
}

.saiwei-page .warning-box {
  margin-top: 16px;
  padding: 15px;
  border-radius: 15px;
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.75rem;
}

.saiwei-page .warning-box strong {
  color: var(--blue-300);
}

.saiwei-page .cross-policy {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.saiwei-page .cross-policy a {
  padding: 8px 10px;
  border-radius: 999px;
  background: var(--silver-100);
  color: #2563eb;
  font-size: 0.68rem;
  font-weight: 850;
}

@media (max-width: 1100px) {
  .saiwei-page .toc {
    position: static;
    max-height: none;
  }
}

@media (max-width: 520px) {
  .saiwei-page .legal-section,
  .saiwei-page .custom-option {
    padding: 15px;
  }
}

.saiwei-page section.legal-section {
  padding: 28px !important;
}

.saiwei-page a:focus-visible,
.saiwei-page button:focus-visible,
.saiwei-page select:focus-visible,
.saiwei-page summary:focus-visible {
  outline: 3px solid #c7ff2e;
  outline-offset: 4px;
}

.saiwei-page .rights {
  padding: 98px 0;
  background: var(--cream);
}

.saiwei-page .rights-layout {
  display: grid;
  grid-template-columns: 0.82fr 1.18fr;
  gap: 44px;
  align-items: start;
}

.saiwei-page .rights-warning {
  margin-top: 18px;
  padding: 17px;
  border-radius: 17px;
  background: var(--blue-900);
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.78rem;
}

.saiwei-page .rights-warning strong {
  color: var(--blue-300);
}

.saiwei-page .filters {
  padding: 98px 0;
  background: var(--cream);
}

.saiwei-page .filter-layout {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 44px;
  align-items: start;
}

.saiwei-page .filter-panel {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.saiwei-page .filter-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.saiwei-page .filter-field {
  display: grid;
  gap: 6px;
}

.saiwei-page .filter-field label {
  color: var(--blue-950);
  font-size: 0.72rem;
  font-weight: 850;
}

.saiwei-page .filter-field select {
  width: 100%;
  padding: 12px 13px;
  border: 1px solid var(--silver-300);
  border-radius: 14px;
  background: var(--silver-50);
  color: #505050;
  opacity: 0.68;
}

.saiwei-page .filter-note {
  margin-top: 18px;
  padding: 16px;
  border-radius: 16px;
  background: var(--cream-2);
  border: 1px solid var(--line);
  color: #555555;
  font-size: 0.76rem;
}

.saiwei-page .utility-urls {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-top: 14px;
}

.saiwei-page .utility-urls code {
  padding: 7px 9px;
  border-radius: 10px;
  background: var(--silver-100);
  color: var(--blue-900);
  font-size: 0.68rem;
}

.saiwei-page .boundary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
  margin-top: 30px;
}

.saiwei-page .boundary-card {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow-sm);
}

.saiwei-page .boundary-card h3 {
  margin: 0;
  color: var(--blue-950);
  font-size: 1.2rem;
}

.saiwei-page .boundary-card p {
  margin: 11px 0 0;
  color: var(--muted);
  font-size: 0.8rem;
}

.saiwei-page .boundary-card.highlight {
  background: linear-gradient(145deg, #fff, var(--blue-100));
}

.saiwei-page .custom-list span {
  padding: 12px;
  border-radius: 14px;
  background: var(--blue-100);
  color: #555555;
  font-size: 0.72rem;
}

.saiwei-page .custom-note {
  margin-top: 18px;
  padding: 17px;
  border-radius: 17px;
  background: var(--cream-2);
  color: #555555;
  font-size: 0.78rem;
}

/* ---------------------------------------------------------------------------
   EVA liner band (.liner-lab)

   Shared by the carbon and PP plastic product descriptions, where it sits
   between the material section and the size section. Deliberately solid
   --cream rather than a gradient: on the PP page the preceding .material
   section ends on a silver gradient, and a second gradient here would show a
   visible seam where the two ramps restart. Its own heading block is modelled
   on .decision-head so it reads as a sibling of the section above it.
   --------------------------------------------------------------------------- */
.saiwei-page .liner-lab {
  padding: 84px 0;
  background: var(--cream);
}

.saiwei-page .liner-lab__head {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 76px;
  align-items: end;
}

.saiwei-page .liner-lab__head .section-copy {
  margin: 0;
}

.saiwei-page .liner-lab__grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 0;
  border: 1px solid var(--silver-300);
}

/* Mirrored band: media first, copy second. Used on the PP plastic product page
   only, so the carbon band keeps copy-left/media-right. Declared straight after
   the base rule so the 900px single-column override still wins on source order. */
.saiwei-page .liner-lab__grid--flip {
  grid-template-columns: 0.92fr 1.08fr;
}

.saiwei-page .liner-lab__copy {
  padding: 45px;
  background: var(--cream-2);
}

.saiwei-page .liner-lab__copy p {
  margin: 0;
  color: var(--muted);
}

.saiwei-page .liner-lab__copy p + p {
  margin-top: 15px;
}

.saiwei-page .liner-lab__copy .text-link {
  margin-top: 26px;
}

.saiwei-page .liner-lab__facts {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--silver-300);
  border-left: 1px solid var(--silver-300);
}

.saiwei-page .liner-lab__fact {
  min-height: 112px;
  padding: 20px;
  border-right: 1px solid var(--silver-300);
  border-bottom: 1px solid var(--silver-300);
  background: var(--cream);
}

.saiwei-page .liner-lab__fact small {
  color: var(--silver-500);
  font-size: 0.64rem;
  font-weight: 900;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.saiwei-page .liner-lab__fact b {
  display: block;
  margin-top: 8px;
  color: var(--blue-950);
  font-size: 0.95rem;
  line-height: 1.3;
}

.saiwei-page .liner-lab__media {
  margin: 0;
  padding: 12px;
  background: #0b0d10;
  display: flex;
  flex-direction: column;
  /* Centred rather than space-between: the copy column is usually taller than
     a square liner photo, and pinning the caption to the bottom of the panel
     strands it far from the image it belongs to. */
  justify-content: center;
}

.saiwei-page .liner-lab__media img {
  width: 100%;
  height: auto;
  display: block;
}

.saiwei-page .liner-lab__media figcaption {
  margin: 22px 10px 0;
  color: #dbdbdb;
  font-size: 0.82rem;
  line-height: 1.5;
}

@media (max-width: 1080px) {
  .saiwei-page .liner-lab__head {
    grid-template-columns: 1fr;
    gap: 26px;
  }
}

@media (max-width: 900px) {
  .saiwei-page .liner-lab__grid {
    grid-template-columns: 1fr;
  }

  .saiwei-page .liner-lab__copy {
    padding: 20px;
  }
}

@media (max-width: 620px) {
  .saiwei-page .liner-lab {
    padding: 58px 0;
  }

  .saiwei-page .liner-lab__facts {
    grid-template-columns: 1fr;
  }

  .saiwei-page .liner-lab__fact {
    min-height: 0;
  }
}