/* Production Bases page */
.pb-hero {
  min-height: 570px;
  position: relative;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
  background: #0c2417 url("../images/bespring-chemical-phosphate-manufacturer-certification.jpg") center / cover no-repeat;
}

.pb-hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(5, 27, 19, .6) 0%, rgba(7, 37, 27, .6) 51%, rgba(6, 30, 22, .35) 82%, rgba(6, 30, 22, .2) 100%),
    linear-gradient(0deg, rgba(5, 23, 16, .46), transparent 55%);
}

.pb-hero__content { position: relative; z-index: 1; padding-top: 60px; padding-bottom: 70px; }

.pb-breadcrumb { margin-bottom: 52px; color: rgba(255, 255, 255, .78); font-size: 13px; }
.pb-breadcrumb ol { display: flex; flex-wrap: wrap; gap: 8px; }
.pb-breadcrumb li + li::before { content: "/"; margin-right: 8px; color: rgba(255, 255, 255, .42); }
.pb-breadcrumb a:hover { color: #fff; }

.pb-eyebrow {
  margin-bottom: 12px;
  color: #168a43;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.pb-hero .pb-eyebrow,
.pb-quality .pb-eyebrow,
.pb-cta .pb-eyebrow { color: #70df95; }

.pb-hero h1 {
  max-width: 850px;
  margin-bottom: 20px;
  font-size: clamp(40px, 5.6vw, 68px);
  line-height: 1.06;
  letter-spacing: -.035em;
}

.pb-hero__lead {
  max-width: 760px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(18px, 2vw, 21px);
  line-height: 1.65;
}

html:not([lang^="zh"]) .pb-hero {
  height: 610px;
  min-height: 560px;
  background-color: #0c2417;
}

html:not([lang^="zh"]) .pb-hero__content {
  padding-top: 64px;
  padding-bottom: 72px;
}

html:not([lang^="zh"]) .pb-breadcrumb {
  margin-bottom: 58px;
}

html:not([lang^="zh"]) .pb-breadcrumb ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

html:not([lang^="zh"]) .pb-hero h1 {
  max-width: 1040px;
  margin-bottom: 20px;
  font-size: clamp(42px, 6vw, 72px);
  line-height: 1.05;
  letter-spacing: -.035em;
}

html:not([lang^="zh"]) .pb-hero__lead {
  max-width: 720px;
  margin-bottom: 32px;
  color: rgba(255, 255, 255, .88);
  font-size: clamp(18px, 2vw, 22px);
  line-height: 1.65;
}

html:not([lang^="zh"]) .pb-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

html:not([lang^="zh"]) .pb-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 750;
}

.pb-hero__actions,
.pb-cta__actions { display: flex; flex-wrap: wrap; gap: 12px; }

.pb-button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 22px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 750;
  transition: transform .2s ease, background .2s ease, border-color .2s ease;
}

.pb-button:hover { transform: translateY(-2px); }
.pb-button--primary { background: #168a43; color: #fff; }
.pb-button--primary:hover { background: #0e6f34; }
.pb-button--ghost,
.pb-button--outline-light { border-color: rgba(255, 255, 255, .5); color: #fff; }
.pb-button--ghost:hover,
.pb-button--outline-light:hover { border-color: #fff; background: rgba(255, 255, 255, .1); }

.pb-about-nav {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid #e5e9e7;
  background: #fff;
  box-shadow: 0 8px 30px rgba(18, 47, 31, .06);
}

.pb-about-nav ul { display: flex; overflow-x: auto; scrollbar-width: none; }
.pb-about-nav ul::-webkit-scrollbar { display: none; }

.pb-about-nav a {
  display: block;
  position: relative;
  padding: 20px 22px;
  color: #526159;
  font-size: 14px;
  font-weight: 700;
  white-space: nowrap;
}

.pb-about-nav a:hover,
.pb-about-nav a.active { color: #147b3d; }

.pb-about-nav a.active::after {
  content: "";
  position: absolute;
  right: 22px;
  bottom: 0;
  left: 22px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: #168a43;
}

.pb-overview { padding: 100px 0; }

.pb-overview__grid {
  display: grid;
  grid-template-columns: minmax(0, .95fr) minmax(0, 1.05fr);
  align-items: center;
  gap: clamp(45px, 7vw, 88px);
}

.pb-overview h2,
.pb-section-heading h2,
.pb-quality h2,
.pb-improvement h2,
.pb-faq h2 {
  color: #17251d;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.18;
  letter-spacing: -.025em;
}

.pb-overview__copy > p:not(.pb-eyebrow) { color: #59665e; font-size: 16px; line-height: 1.8; }

.pb-overview__copy .pb-overview__answer {
  padding-left: 18px;
  border-left: 3px solid #168a43;
  color: #26382d;
  font-size: 17px;
}

.pb-text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #147b3d;
  font-size: 14px;
  font-weight: 800;
}

.pb-text-link:hover { gap: 12px; }

.pb-overview__media { position: relative; margin: 0; padding: 0 0 22px 22px; }

.pb-overview__media::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  z-index: -1;
  width: 72%;
  height: 68%;
  border-radius: 12px;
  background: #dff1e5;
}

.pb-overview__media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 20px 55px rgba(16, 48, 30, .16);
}

.pb-overview__media figcaption {
  position: absolute;
  bottom: 22px;
  left: 22px;
  padding: 12px 16px;
  border-radius: 0 7px 0 0;
  background: #fff;
  color: #45544b;
  box-shadow: 0 8px 20px rgba(16, 48, 30, .12);
  font-size: 13px;
  font-weight: 700;
}

.pb-overview__media figcaption i { margin-right: 7px; color: #168a43; }

.pb-locations { padding: 100px 0; background: #f3f7f4; }

.pb-section-heading { max-width: 800px; margin: 0 auto 48px; text-align: center; }
.pb-section-heading > p:last-child { color: #647169; font-size: 16px; line-height: 1.75; }

.pb-locations__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  align-items: stretch;
  gap: 26px;
}

.pb-locations__visual {
  min-height: 520px;
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  background:
    radial-gradient(circle at 50% 50%, rgba(38, 157, 82, .25), transparent 28%),
    linear-gradient(135deg, #0d2819, #153c27);
  box-shadow: 0 18px 45px rgba(16, 48, 30, .14);
}

.pb-locations__visual::before,
.pb-locations__visual::after {
  content: "";
  position: absolute;
  border: 1px solid rgba(112, 223, 149, .2);
  border-radius: 50%;
}

.pb-locations__visual::before { inset: 11%; }
.pb-locations__visual::after { inset: 25%; }

.pb-network-core,
.pb-network-node {
  display: flex;
  position: absolute;
  z-index: 2;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.pb-network-core {
  top: 50%;
  left: 50%;
  width: 150px;
  height: 150px;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 50%;
  background: #168a43;
  color: #fff;
  box-shadow: 0 0 0 14px rgba(22, 138, 67, .13), 0 16px 35px rgba(0, 0, 0, .2);
}

.pb-network-core i { margin-bottom: 9px; font-size: 25px; }
.pb-network-core strong { font-size: 18px; }
.pb-network-core small { color: rgba(255, 255, 255, .72); font-size: 11px; }

.pb-network-node {
  width: 128px;
  min-height: 72px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, .17);
  border-radius: 9px;
  background: rgba(255, 255, 255, .08);
  color: #fff;
  backdrop-filter: blur(5px);
}

.pb-network-node strong { font-size: 15px; }
.pb-network-node small { margin-top: 2px; color: rgba(255, 255, 255, .6); font-size: 11px; }
.pb-network-node--jiangsu { top: 10%; right: 9%; }
.pb-network-node--shandong { top: 10%; left: 9%; }
.pb-network-node--sichuan { bottom: 10%; left: 9%; }
.pb-network-node--hainan { right: 9%; bottom: 10%; }

.pb-locations__list { display: grid; gap: 12px; }

.pb-locations__list article {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 22px;
  border: 1px solid #e1e8e3;
  border-radius: 10px;
  background: #fff;
}

.pb-locations__list article > span {
  display: inline-flex;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: #e3f3e8;
  color: #147b3d;
  font-size: 12px;
  font-weight: 850;
}

.pb-locations__list h3 { margin: 0 0 5px; color: #23352a; font-size: 18px; }
.pb-locations__list p { margin: 0; color: #66736b; font-size: 14px; line-height: 1.65; }

.pb-location-note {
  max-width: 960px;
  margin: 28px auto 0;
  padding: 13px 17px;
  border: 1px solid #d5e5da;
  border-radius: 8px;
  background: #fff;
  color: #5e6d63;
  font-size: 13px;
  text-align: center;
}

.pb-location-note i { margin-right: 7px; color: #168a43; }

.pb-capabilities { padding: 100px 0; }

.pb-capabilities__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.pb-capability {
  display: grid;
  grid-template-columns: minmax(180px, .82fr) minmax(0, 1.18fr);
  overflow: hidden;
  border: 1px solid #e0e8e2;
  border-radius: 12px;
  background: #fff;
  box-shadow: 0 12px 34px rgba(18, 54, 34, .07);
}

.pb-capability img { width: 100%; height: 100%; min-height: 240px; object-fit: cover; border-radius: 0; }
.pb-capability > div { padding: 28px 26px; }
.pb-capability span { color: #168a43; font-size: 12px; font-weight: 850; letter-spacing: .08em; }
.pb-capability h3 { margin-top: 24px; color: #213329; font-size: 20px; }
.pb-capability p { margin: 0; color: #66736b; font-size: 14px; line-height: 1.75; }

.pb-quality {
  padding: 100px 0;
  color: #fff;
  background:
    radial-gradient(circle at 12% 15%, rgba(38, 158, 82, .2), transparent 28%),
    #0d2819;
}

.pb-quality__grid {
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  align-items: start;
  gap: clamp(50px, 8vw, 110px);
}

.pb-quality h2 { color: #fff; }
.pb-quality__heading > p:not(.pb-eyebrow) { color: rgba(255, 255, 255, .68); line-height: 1.8; }
.pb-quality__heading .pb-button { margin-top: 12px; }
.pb-quality__steps { counter-reset: quality; }

.pb-quality__steps li {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 18px;
  padding: 0 0 28px;
  border-bottom: 1px solid rgba(255, 255, 255, .13);
  margin-bottom: 28px;
}

.pb-quality__steps li:last-child { margin: 0; padding-bottom: 0; border-bottom: 0; }

.pb-quality__steps li > span {
  display: inline-flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(112, 223, 149, .45);
  border-radius: 9px;
  color: #70df95;
  font-weight: 850;
}

.pb-quality__steps h3 { margin: 0 0 6px; color: #fff; font-size: 18px; }
.pb-quality__steps p { margin: 0; color: rgba(255, 255, 255, .64); font-size: 14px; line-height: 1.7; }

.pb-improvement { padding: 100px 0; background: #f5f7f5; }

.pb-improvement__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(45px, 7vw, 85px);
}

.pb-improvement__media img {
  width: 100%;
  border: 1px solid #dde6df;
  border-radius: 12px;
  box-shadow: 0 18px 45px rgba(16, 48, 30, .12);
}

.pb-improvement__copy > p:not(.pb-eyebrow) { color: #647169; line-height: 1.8; }
.pb-improvement__copy ul { display: grid; gap: 15px; margin-top: 25px; }
.pb-improvement__copy li { display: grid; grid-template-columns: 24px 1fr; gap: 10px; color: #56635b; line-height: 1.65; }
.pb-improvement__copy li i { margin-top: 4px; color: #168a43; }
.pb-improvement__copy li strong { color: #26382d; }

.pb-faq { padding: 100px 0; }

.pb-faq__grid {
  display: grid;
  grid-template-columns: .75fr 1.25fr;
  gap: clamp(50px, 8vw, 100px);
}

.pb-faq__heading > p:last-child { color: #657169; line-height: 1.8; }
.pb-faq__list { border-top: 1px solid #dfe6e1; }
.pb-faq details { border-bottom: 1px solid #dfe6e1; }

.pb-faq summary {
  position: relative;
  padding: 22px 44px 22px 0;
  color: #24362b;
  cursor: pointer;
  font-size: 17px;
  font-weight: 750;
  list-style: none;
}

.pb-faq summary::-webkit-details-marker { display: none; }
.pb-faq summary::after { content: "+"; position: absolute; top: 18px; right: 4px; color: #168a43; font-size: 26px; font-weight: 400; }
.pb-faq details[open] summary::after { content: "−"; }
.pb-faq details p { padding: 0 44px 20px 0; color: #657169; line-height: 1.75; }

.pb-cta { padding: 66px 0; color: #fff; background: #157c3e; }

.pb-cta__inner {
  display: grid;
  grid-template-columns: 1.45fr .55fr;
  align-items: center;
  gap: 48px;
}

.pb-cta h2 { margin-bottom: 10px; color: #fff; font-size: clamp(28px, 4vw, 40px); }
.pb-cta p:last-child { margin: 0; color: rgba(255, 255, 255, .8); }
.pb-cta__actions { justify-content: flex-end; }
.pb-cta .pb-button--primary { background: #fff; color: #116d35; }
.pb-cta .pb-button--primary:hover { background: #eef8f1; }

@media (max-width: 1050px) {
  .pb-locations__layout,
  .pb-quality__grid { grid-template-columns: 1fr; }
  .pb-locations__visual { min-height: 480px; }
  .pb-capability { grid-template-columns: 1fr; }
  .pb-capability img { min-height: 220px; max-height: 240px; }
}

@media (max-width: 900px) {
  .pb-overview__grid,
  .pb-improvement__grid,
  .pb-faq__grid,
  .pb-cta__inner { grid-template-columns: 1fr; }
  .pb-cta__actions { justify-content: flex-start; }
}

@media (max-width: 700px) {
  .pb-hero { min-height: 560px; background-position: 60% center; }
  .pb-hero__overlay { background: rgba(5, 27, 19, .6); }
  .pb-hero__content { padding-top: 38px; padding-bottom: 46px; }
  .pb-breadcrumb { margin-bottom: 38px; }
  html:not([lang^="zh"]) .pb-hero { height: 540px; min-height: 540px; background-position: 58% center; }
  html:not([lang^="zh"]) .pb-hero h1 { max-width: 760px; }
  html:not([lang^="zh"]) .pb-breadcrumb { margin-bottom: 40px; }
  .pb-about-nav a { padding: 17px 15px; font-size: 13px; }
  .pb-about-nav a.active::after { right: 15px; left: 15px; }
  .pb-overview,
  .pb-locations,
  .pb-capabilities,
  .pb-quality,
  .pb-improvement,
  .pb-faq { padding: 70px 0; }
  .pb-overview__media { padding: 0 0 12px 12px; }
  .pb-overview__media figcaption { position: relative; bottom: auto; left: auto; margin: -5px 0 0 12px; border-radius: 0 0 7px 7px; }
  .pb-locations__visual { min-height: 430px; }
  .pb-network-core { width: 125px; height: 125px; }
  .pb-network-node { width: 105px; min-height: 65px; }
  .pb-network-node--jiangsu { top: 8%; right: 5%; }
  .pb-network-node--shandong { top: 8%; left: 5%; }
  .pb-network-node--sichuan { bottom: 8%; left: 5%; }
  .pb-network-node--hainan { right: 5%; bottom: 8%; }
  .pb-capabilities__grid { grid-template-columns: 1fr; }
  .pb-capability { grid-template-columns: minmax(140px, .85fr) minmax(0, 1.15fr); }
  .pb-capability img { min-height: 245px; max-height: none; }
  .pb-capability > div { padding: 24px 20px; }
  .pb-capability h3 { margin-top: 16px; }
  .pb-cta { padding: 54px 0; }
}

@media (max-width: 500px) {
  .pb-hero__actions,
  .pb-cta__actions { align-items: stretch; flex-direction: column; }
  .pb-button { width: 100%; }
  .pb-locations__visual { min-height: 400px; }
  .pb-network-node { width: 96px; padding: 8px 5px; }
  .pb-network-node small { font-size: 9px; }
  .pb-locations__list article { padding: 18px; }
  .pb-capability { grid-template-columns: 1fr; }
  .pb-capability img { min-height: 220px; height: 220px; }
}

@media (prefers-reduced-motion: reduce) {
  .pb-button { transition: none; }
}