/* Sustainable Materials — jingtai/sustainable-materials-richman.html */

.site-page-sustainable .about-hero {
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.site-page-sustainable .about-hero .hero-media {
  position: absolute;
  inset: 0;
  background: #e4e0da;
}

.site-page-sustainable .about-hero .hero-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  animation: richman-sust-kenburns 26s ease-in-out infinite alternate;
  filter: none;
}

.site-page-sustainable .about-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(45, 45, 45, 0.18);
}

@keyframes richman-sust-kenburns {
  0% { transform: scale(1) translate(0, 0); }
  100% { transform: scale(1.12) translate(-1.5%, -1.5%); }
}

.site-page-sustainable .about-hero .about-hero-content {
  position: relative;
  z-index: 2;
  color: var(--rm-cream, #f7f4ef);
  text-align: center;
  padding: 0 var(--rm-gutter, 6vw);
  transform: translateY(70px);
}

.site-page-sustainable .about-hero-content h1 {
  font-size: 34px;
  font-weight: 620;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}

.site-page-sustainable .about-hero-content p {
  font-size: 19px;
  font-weight: 300;
  letter-spacing: 1px;
  opacity: 0.92;
}

.site-page-sustainable .about-hero::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 46px;
  background: rgba(176, 139, 91, 0.85);
  z-index: 2;
  pointer-events: none;
}

.site-page-sustainable .about-hero .breadcrumb {
  position: absolute;
  left: 50%;
  bottom: 0;
  z-index: 3;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1600px;
  height: 46px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 clamp(16px, 3vw, 48px);
  margin: 0;
}

.site-page-sustainable .about-hero .breadcrumb a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  transition: color 0.3s ease;
}

.site-page-sustainable .about-hero .breadcrumb a:hover { color: #fff; }

.site-page-sustainable .bc-sep {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.65);
}

.site-page-sustainable .bc-current {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: #fff;
}

.site-page-sustainable .about-hero .breadcrumb a,
.site-page-sustainable .about-hero .breadcrumb .bc-sep,
.site-page-sustainable .about-hero .breadcrumb .bc-current {
  transform: translateY(2px);
}

.site-page-sustainable .sustain-intro {
  max-width: 1600px;
  margin: 0 auto;
  padding: 95px 24px 0;
  text-align: center;
}

.site-page-sustainable .sustain-intro .eyebrow { margin-bottom: 16px; }

.site-page-sustainable .sustain-intro h2 {
  font-size: 34px;
  margin-bottom: 16px;
  line-height: 1.2;
}

.site-page-sustainable .sustain-intro p {
  max-width: 1020px;
  margin: 0 auto;
  font-size: 15.5px;
  color: rgba(45, 45, 45, 0.72);
  line-height: 1.95;
}

.site-page-sustainable .materials-section {
  max-width: 1600px;
  margin: 0 auto;
  padding: 70px 24px 0;
}

.site-page-sustainable .materials-grid {
  display: grid;
  gap: 24px;
}

.site-page-sustainable .materials-grid + .materials-grid {
  margin-top: 24px;
}

.site-page-sustainable .materials-grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.site-page-sustainable .materials-grid-2 .material-card {
  min-height: 330px;
}

.site-page-sustainable .materials-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.site-page-sustainable .materials-grid-3 .material-card {
  min-height: 290px;
}

.site-page-sustainable .material-card {
  background: var(--rm-white, #fff);
  border: 1px solid rgba(45, 45, 45, 0.08);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: row;
  transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.site-page-sustainable .material-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(45, 45, 45, 0.12);
  border-color: rgba(176, 139, 91, 0.45);
}

.site-page-sustainable .material-thumb {
  width: 44%;
  flex-shrink: 0;
  min-height: 220px;
  background: #f1eee9;
  overflow: hidden;
}

.site-page-sustainable .material-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: none;
}

.site-page-sustainable .material-body {
  padding: 30px 32px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  flex: 1;
}

.site-page-sustainable .material-body h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.35;
}

.site-page-sustainable .material-body p {
  font-size: 12.5px;
  color: rgba(45, 45, 45, 0.7);
  line-height: 1.75;
  margin: 0;
}

.site-page-sustainable .support2-section {
  max-width: 1400px;
  margin: 0 auto;
  padding: 110px 24px 40px;
}

.site-page-sustainable .support2-box {
  background: #f9f7f3;
  border-radius: 16px;
  padding: 90px clamp(30px, 5vw, 80px);
}

.site-page-sustainable .support2-head {
  text-align: center;
  margin-bottom: 64px;
}

.site-page-sustainable .support2-head .eyebrow { margin-bottom: 16px; }

.site-page-sustainable .support2-head h2 { font-size: 34px; }

.site-page-sustainable .support2-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
}

.site-page-sustainable .support2-item {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.site-page-sustainable .support2-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid rgba(176, 139, 91, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--rm-camel, #b08b5b);
  transition: background 0.3s ease, color 0.3s ease;
}

.site-page-sustainable .support2-icon img {
  width: 26px;
  height: 26px;
  object-fit: contain;
  filter: none;
  display: block;
  transition: transform 0.3s ease;
}

.site-page-sustainable .support2-item:hover .support2-icon {
  background: rgba(176, 139, 91, 0.12);
  border-color: var(--rm-camel, #b08b5b);
}

.site-page-sustainable .support2-item:hover .support2-icon img {
  transform: scale(1.1);
}

.site-page-sustainable .support2-item h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
}

.site-page-sustainable .support2-item p {
  font-size: 14px;
  color: rgba(45, 45, 45, 0.75);
  line-height: 1.85;
  margin: 0;
  max-width: 320px;
}

.site-page-sustainable .material-flow-section {
  max-width: 1600px;
  margin: 0 auto;
  padding: 60px 24px 100px;
}

.site-page-sustainable .material-flow-head {
  text-align: center;
  margin-bottom: 48px;
}

.site-page-sustainable .material-flow-head h2 {
  font-size: 34px;
  color: var(--rm-charcoal, #2d2d2d);
  margin: 0;
}

.site-page-sustainable .material-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  flex-wrap: wrap;
  gap: 20px;
}

.site-page-sustainable .material-flow-step {
  flex: 1 1 180px;
  max-width: 240px;
  text-align: center;
}

.site-page-sustainable .material-flow-step h3 {
  font-size: 15px;
  font-weight: 620;
  color: var(--rm-charcoal, #2d2d2d);
  margin-bottom: 8px;
  line-height: 1.4;
}

.site-page-sustainable .material-flow-step p {
  font-size: 12.5px;
  color: rgba(45, 45, 45, 0.7);
  line-height: 1.7;
  margin: 0;
}

.site-page-sustainable .material-flow-arrow {
  color: var(--rm-camel, #b08b5b);
  font-size: 18px;
  align-self: center;
  flex-shrink: 0;
}

.site-page-sustainable .cta-section {
  background: #fbfaf7;
  padding: 70px 24px 90px;
  text-align: center;
}

.site-page-sustainable .cta-inner {
  max-width: 760px;
  margin: 0 auto;
}

.site-page-sustainable .cta-inner h2 {
  font-size: 34px;
  margin-bottom: 18px;
}

.site-page-sustainable .cta-inner p {
  font-size: 15px;
  color: rgba(45, 45, 45, 0.72);
  line-height: 1.85;
  margin: 0 auto 38px;
}

.site-page-sustainable .cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.site-page-sustainable .cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 36px;
  background: var(--rm-camel, #b08b5b);
  color: #fff;
  font-size: 13px;
  font-weight: 620;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border-radius: 4px;
  text-decoration: none;
  transition: opacity 0.3s ease, gap 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.site-page-sustainable .cta-btn:hover {
  opacity: 0.85;
  gap: 16px;
  color: #fff;
}

.site-page-sustainable .cta-btn-outline {
  background: transparent;
  color: var(--rm-charcoal, #2d2d2d);
  border: 1px solid rgba(45, 45, 45, 0.35);
}

.site-page-sustainable .cta-btn-outline:hover {
  opacity: 1;
  border-color: var(--rm-camel, #b08b5b);
  color: var(--rm-camel, #b08b5b);
}

@media (max-width: 1200px) {
  .site-page-sustainable .materials-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 900px) {
  .site-page-sustainable .about-hero { height: 480px; }

  .site-page-sustainable .about-hero::before,
  .site-page-sustainable .about-hero .breadcrumb {
    height: 38px;
  }

  .site-page-sustainable .sustain-intro { padding: 70px 24px 0; }
  .site-page-sustainable .materials-section { padding: 60px 24px 0; }

  .site-page-sustainable .materials-grid-2,
  .site-page-sustainable .materials-grid-3 {
    grid-template-columns: 1fr 1fr;
  }

  .site-page-sustainable .material-card {
    flex-direction: column;
  }

  .site-page-sustainable .material-thumb {
    width: 100%;
    height: 170px;
    min-height: 0;
  }

  .site-page-sustainable .support2-section { padding: 90px 24px 30px; }
  .site-page-sustainable .support2-box { padding: 70px 30px; }
  .site-page-sustainable .support2-grid { gap: 36px; }
}

@media (max-width: 768px) {
  .site-page-sustainable .about-hero .breadcrumb a,
  .site-page-sustainable .bc-sep,
  .site-page-sustainable .bc-current {
    font-size: 12px;
    letter-spacing: 1.5px;
  }
}

@media (max-width: 700px) {
  .site-page-sustainable .materials-grid-2,
  .site-page-sustainable .materials-grid-3 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .site-page-sustainable .support2-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .site-page-sustainable .sustain-intro h2,
  .site-page-sustainable .support2-head h2,
  .site-page-sustainable .material-flow-head h2,
  .site-page-sustainable .cta-inner h2 {
    font-size: 28px;
  }

  .site-page-sustainable .material-flow-arrow {
    display: none;
  }
}