/* About page — company profile and following sections */

body.hp-page > .all.hp-about {
  background: #fff;
  color: #1a1a1a;
  font-family: "Maven Pro", "PingFang SC", "Microsoft YaHei", sans-serif;
  padding: 0;
  box-sizing: border-box;
}

/* —— APC 风格内页横幅 —— */
.hp-about-banner.inner-banner-b {
  color: #fff;
  padding-top: clamp(96px, 12vw, 140px);
  border-bottom: none;
}

.hp-about-banner-img.inner-banner-img {
  background-image: url('../images/hp-inner-banner-about.jpg?v=20260824a');
  filter: blur(3px);
  transform: scale(1.04);
  animation: hp-about-banner-bg 1.35s ease forwards;
}

.hp-about-banner .inner-banner-heading-deco,
.hp-about-banner .inner-banner-sec-txt,
.hp-about-banner .inner-banner-heading-txt {
  opacity: 0;
  animation: hp-about-banner-enter 0.85s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hp-about-banner .inner-banner-heading-deco {
  animation-delay: 0.12s;
}

.hp-about-banner .inner-banner-sec-txt {
  animation-delay: 0.28s;
}

.hp-about-banner .inner-banner-heading-txt {
  animation-delay: 0.44s;
}

@keyframes hp-about-banner-bg {
  from {
    filter: blur(7px);
    transform: scale(1.1);
  }
  to {
    filter: blur(3px);
    transform: scale(1.04);
  }
}

@keyframes hp-about-banner-enter {
  from {
    opacity: 0;
    transform: translateY(22px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* 公司简介：首屏用 CSS 入场，避免 WOW 把右侧图藏住 */
.hp-about-intro-copy,
.hp-about-intro-media {
  opacity: 0;
  animation: hp-about-section-enter 0.9s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hp-about-intro-copy {
  transform: translateX(-28px);
  animation-delay: 0.15s;
}

.hp-about-intro-media {
  transform: translateX(28px);
  animation-delay: 0.32s;
}

@keyframes hp-about-section-enter {
  to {
    opacity: 1;
    transform: translate(0, 0);
  }
}

/* Light green wash over background photo */
.hp-about-banner .inner-banner-mask {
  background-color: rgba(120, 185, 140, 0.48);
  pointer-events: none;
}

.hp-about-banner .container {
  width: min(1120px, calc(100% - 48px));
  max-width: none;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.hp-about-banner .inner-banner-wrap {
  margin-bottom: clamp(28px, 4vw, 48px);
}

.hp-about-banner .inner-banner-heading-deco {
  width: 56px;
  margin-bottom: 10px;
}

.hp-about-banner .inner-banner-sec-txt {
  letter-spacing: 0.12em;
  font-size: clamp(14px, 1.4vw, 17px);
  line-height: 1.2;
  font-weight: 500;
}

.hp-about-banner .inner-banner-heading-txt {
  margin: 8px 0 0;
  color: #fff;
  font-size: clamp(40px, 6vw, 70px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 12px rgba(4, 98, 23, 0.35);
}

.hp-about-banner-curve-back.inner-banner-bottom-back {
  background-image: url('../images/hp-inner-banner-curve-back.png?v=20260824a');
  transform-origin: 100% 100%;
  animation: hp-about-banner-wave 5.5s ease-in-out infinite;
  will-change: transform;
}

.hp-about-banner-curve-front.inner-banner-bottom-front {
  background-image: url('../images/hp-inner-banner-curve-front.png?v=20260824a');
  transform-origin: 100% 100%;
  animation: hp-about-banner-wave 5.5s ease-in-out 0.35s infinite;
  will-change: transform;
}

.hp-about-banner .inner-banner-bottom-b {
  position: relative;
  z-index: 2;
  overflow: visible;
}

/* APC-style rolling wave: scale 1 ↔ 1.5 from bottom-right */
@keyframes hp-about-banner-wave {
  0%,
  100% {
    transform: scale3d(1, 1, 1);
  }
  45% {
    transform: scale3d(1.5, 1.5, 1);
  }
}

/* —— 公司简介：首页同款标题 + 左文右图 —— */
.hp-about-intro {
  position: relative;
  background: linear-gradient(180deg, #f3f7f4 0%, #eef4f0 100%);
  padding: 72px 0 72px;
  overflow: hidden;
  margin-top: -2px;
}

.hp-about-intro-deco {
  position: absolute;
  top: 72px;
  right: max(2vw, 16px);
  width: min(280px, 28vw);
  height: 220px;
  pointer-events: none;
  z-index: 0;
}

.hp-about-mol {
  position: absolute;
  overflow: visible;
  will-change: transform;
}

.hp-about-mol--a {
  top: 0;
  right: 0;
  width: 88%;
  animation: hp-about-mol-float-a 9s ease-in-out infinite;
}

.hp-about-mol--b {
  top: 42%;
  right: 8%;
  width: 62%;
  animation: hp-about-mol-float-b 7.5s ease-in-out infinite;
}

.hp-about-mol-node {
  transform-origin: center;
  animation: hp-about-mol-pulse 4.5s ease-in-out infinite;
}

.hp-about-mol-node:nth-of-type(2) { animation-delay: 0.4s; }
.hp-about-mol-node:nth-of-type(3) { animation-delay: 0.8s; }
.hp-about-mol-node:nth-of-type(4) { animation-delay: 1.2s; }
.hp-about-mol-node:nth-of-type(5) { animation-delay: 1.6s; }
.hp-about-mol-node:nth-of-type(6) { animation-delay: 2s; }

@keyframes hp-about-mol-float-a {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(-6px, 8px) rotate(1.5deg); }
}

@keyframes hp-about-mol-float-b {
  0%, 100% { transform: translate(0, 0) rotate(0deg); }
  50% { transform: translate(8px, -6px) rotate(-2deg); }
}

@keyframes hp-about-mol-pulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 0.7; }
}

.hp-about-intro-inner {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 40px 48px;
  align-items: center;
}

.hp-about-intro-copy {
  min-width: 0;
}

.hp-about-heading {
  color: var(--hp-brand, #06821f);
  margin-bottom: 28px;
}

.hp-about-heading .section-heading-wrap {
  margin-top: -20px;
}

.hp-about-heading .section-heading-txt {
  margin: 28px 0 0 10px;
  color: var(--hp-brand, #06821f);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hp-about-heading .section-heading-graphic-b .hp-heading-tube {
  display: block;
  width: 100%;
  height: auto;
  transform-origin: 50% 92%;
  animation: hp-about-tube-float 3.8s ease-in-out infinite;
}

@keyframes hp-about-tube-float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-5px) rotate(-2.5deg); }
}

.hp-about-intro-text {
  margin: 0 0 14px;
  max-width: 42em;
  color: var(--hp-brand-deep, #046217);
  font-size: 15px;
  line-height: 1.75;
  text-align: justify;
}

.hp-about-intro-text:last-child {
  margin-bottom: 0;
}

.hp-about-intro-media {
  position: relative;
  min-width: 0;
  width: 100%;
  max-width: 560px;
  margin-left: auto;
  justify-self: end;
}

.hp-about-intro-graphic-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
}

.hp-about-intro-circle {
  position: relative;
  flex: 0 1 auto;
  width: 78%;
  max-width: 440px;
  padding: 5.5%;
  border-radius: 50%;
  background: var(--hp-brand-softer, #f0f9f2);
  box-sizing: border-box;
}

.hp-about-intro-slides {
  position: relative;
  z-index: 1;
  width: 100%;
  padding-top: 100%;
  border-radius: 50%;
  overflow: hidden;
}

.hp-about-intro-slide {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background-position: 50% 42%;
  background-repeat: no-repeat;
  background-size: cover;
  transform: translateX(100%);
  transition: transform 0.75s cubic-bezier(0.4, 0.05, 0.2, 1);
  pointer-events: none;
  will-change: transform;
}

.hp-about-intro-slide.is-active {
  transform: translateX(0);
  pointer-events: auto;
  z-index: 1;
}

.hp-about-intro-slide.is-left {
  transform: translateX(-100%);
  z-index: 0;
}

.hp-about-intro-slide.is-right {
  transform: translateX(100%);
  z-index: 0;
}

.hp-about-intro-slide.is-no-trans {
  transition: none !important;
}

.hp-about-intro-photo-shadow {
  z-index: 2;
  position: absolute;
  inset: 5.5%;
  border-radius: 50%;
  box-shadow: inset 0 0 36px rgb(4 98 23 / 0.18);
  pointer-events: none;
}

/* Same btn-slider-arrow as homepage 资质与认证; stack vertically beside circle */
.hp-about-intro-arrows.slider-arrow-gp {
  flex: 1 1 0;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin: 0;
  min-width: 60px;
  padding-left: 4px;
}

.hp-about-intro-arrows .slider-arrow-item {
  padding: 10px 0;
}

.hp-about-intro-media-deco {
  position: absolute;
  top: 4%;
  right: 18%;
  width: 18%;
  max-width: 88px;
  pointer-events: none;
  z-index: 3;
}

.hp-about-intro-media-deco svg {
  display: block;
  width: 100%;
  height: auto;
  transform: rotate(28deg);
}

@media (max-width: 900px) {
  .hp-about-banner.inner-banner-b {
    padding-top: 88px;
  }

  .hp-about-banner .container {
    width: min(1120px, calc(100% - 32px));
  }

  .hp-about-banner .inner-banner-heading-deco {
    width: 40px;
  }

  .hp-about-intro {
    padding: 56px 0 56px;
  }

  .hp-about-intro-deco {
    top: 88px;
    width: min(180px, 42vw);
    height: 150px;
    opacity: 0.7;
  }

  .hp-about-intro-inner {
    width: min(1120px, calc(100% - 32px));
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .hp-about-heading .section-heading-txt {
    font-size: clamp(32px, 8vw, 44px);
  }

  .hp-about-intro-media {
    max-width: 420px;
    margin-inline: auto;
    justify-self: center;
  }

  .hp-about-intro-circle {
    width: 82%;
  }

  .hp-about-intro-arrows .slider-arrow-item {
    padding: 6px 0;
  }

  .hp-about-intro-media-deco {
    right: 16%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hp-about-mol--a,
  .hp-about-mol--b,
  .hp-about-mol-node,
  .hp-about-heading .section-heading-graphic-b .hp-heading-tube,
  .hp-about-banner-curve-back,
  .hp-about-banner-curve-front,
  .hp-about-banner-img.inner-banner-img,
  .hp-about-banner .inner-banner-heading-deco,
  .hp-about-banner .inner-banner-sec-txt,
  .hp-about-banner .inner-banner-heading-txt,
  .hp-about-intro-copy,
  .hp-about-intro-media {
    animation: none !important;
    transform: none;
    opacity: 1;
  }

  .hp-about-cert-desc {
    transition: none;
  }

  .hp-about-cert-item:hover .hp-about-cert-desc,
  .hp-about-cert-item:focus-within .hp-about-cert-desc {
    transform: none;
    opacity: 1;
  }

  .hp-about-intro-slide {
    transition: none;
  }

  .hp-about-clients-row--ltr .hp-about-clients-track,
  .hp-about-clients-row--rtl .hp-about-clients-track {
    animation: none;
    transform: none;
    flex-wrap: wrap;
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    justify-content: center;
    padding-inline: 16px;
  }

  .hp-about-clients-row {
    mask-image: none;
    -webkit-mask-image: none;
  }

  .hp-about-clients-pill.is-clone {
    display: none;
  }
}


/* —— 合作客户（业务版图下方） —— */
.hp-about-clients {
  background: #f7faf7;
  padding: 88px 0 72px;
  border-top: 1px solid rgba(6, 130, 31, 0.08);
  overflow: hidden;
}

.hp-about-clients-inner {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto 40px;
  text-align: center;
}

.hp-about-clients-heading {
  color: var(--hp-brand, #06821f);
  margin-bottom: 18px;
  display: flex;
  justify-content: center;
}

.hp-about-clients-heading .section-heading-wrap {
  margin-top: -12px;
  justify-content: center;
  align-items: center;
  width: fit-content;
  margin-inline: auto;
}

.hp-about-clients-heading .section-heading-graphic-b {
  margin-left: 0;
}

.hp-about-clients-heading .section-heading-txt {
  margin: 28px 0 0 10px;
  color: var(--hp-brand, #06821f);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-align: center;
}

.hp-about-clients-lead {
  margin: 0 auto;
  max-width: 46em;
  color: #5a6b5e;
  font-size: 16px;
  line-height: 1.75;
  text-align: center;
}

.hp-about-clients-marquee {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
}

.hp-about-clients-row {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}

.hp-about-clients-track {
  display: flex;
  width: max-content;
  gap: 14px;
  padding: 4px 0;
  will-change: transform;
}

.hp-about-clients-row--ltr .hp-about-clients-track {
  animation: hp-clients-ltr 48s linear infinite;
}

.hp-about-clients-row--rtl .hp-about-clients-track {
  animation: hp-clients-rtl 52s linear infinite;
}

.hp-about-clients-row:hover .hp-about-clients-track {
  animation-play-state: paused;
}

.hp-about-clients-pill {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 52px;
  padding: 8px 18px 8px 10px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid rgba(6, 130, 31, 0.1);
  box-shadow: 0 6px 18px rgba(4, 98, 23, 0.06);
  white-space: nowrap;
}

.hp-about-clients-pill.is-logo {
  min-height: 72px;
  gap: 12px;
  padding: 10px 20px 10px 14px;
  border-radius: 16px;
}

.hp-about-clients-logo {
  display: block;
  height: 40px;
  width: auto;
  max-width: 120px;
  object-fit: contain;
  flex: none;
}

.hp-about-clients-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(145deg, var(--hp-brand, #06821f), #0a9a28);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  flex: none;
}

.hp-about-clients-pill:nth-child(3n) .hp-about-clients-mark {
  background: linear-gradient(145deg, var(--hp-accent, #c9a227), #dbb43a);
  color: #3a2f0a;
}

.hp-about-clients-pill:nth-child(3n + 2) .hp-about-clients-mark {
  background: linear-gradient(145deg, #046217, #06821f);
}

.hp-about-clients-name {
  color: #2a332c;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: 0.01em;
}

@keyframes hp-clients-ltr {
  from { transform: translateX(-50%); }
  to { transform: translateX(0); }
}

@keyframes hp-clients-rtl {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

@media (max-width: 900px) {
  .hp-about-clients {
    padding: 64px 0 56px;
  }

  .hp-about-clients-inner {
    width: min(1120px, calc(100% - 32px));
    margin-bottom: 28px;
  }

  .hp-about-clients-heading .section-heading-txt {
    font-size: clamp(32px, 8vw, 44px);
  }

  .hp-about-clients-lead {
    font-size: 15px;
  }

  .hp-about-clients-pill {
    min-height: 46px;
    padding: 6px 14px 6px 8px;
  }

  .hp-about-clients-pill.is-logo {
    min-height: 60px;
    padding: 8px 16px;
  }

  .hp-about-clients-logo {
    height: 36px;
    max-width: 132px;
  }

  .hp-about-clients-mark {
    width: 30px;
    height: 30px;
    font-size: 12px;
  }

  .hp-about-clients-name {
    font-size: 14px;
  }
}

/* —— 资质认证（参照 matrix-chem 分栏网格） —— */
.hp-about-certs {
  background: #f7faf8;
  padding: 88px 0 48px;
  border-top: 1px solid rgba(6, 130, 31, 0.08);
}

.hp-about-certs-inner {
  width: min(1120px, calc(100% - 48px));
  margin: 0 auto;
}

.hp-about-certs-heading {
  color: var(--hp-brand, #06821f);
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}

.hp-about-certs-heading .section-heading-wrap {
  margin-top: -12px;
  justify-content: center;
  align-items: center;
  width: fit-content;
  margin-inline: auto;
}

.hp-about-certs-heading .section-heading-graphic-b {
  margin-left: 0;
}

.hp-about-certs-heading .section-heading-txt {
  margin: 28px 0 0 10px;
  color: var(--hp-brand, #06821f);
  font-size: clamp(36px, 4.5vw, 56px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-align: center;
}

.hp-about-certs-lead {
  margin: 0 auto 48px;
  max-width: 46em;
  color: #5a6b5e;
  font-size: 16px;
  line-height: 1.75;
  text-align: center;
}

.hp-about-certs-group {
  margin-bottom: 56px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(6, 130, 31, 0.1);
}

.hp-about-certs-group--last {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.hp-about-certs-cat {
  text-align: center;
  margin-bottom: 32px;
}

.hp-about-certs-cat h3 {
  margin: 0;
  color: #333;
  font-size: clamp(26px, 3vw, 36px);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.hp-about-certs-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 32px 1.5%;
}

.hp-about-cert-item {
  width: calc(33.3333% - 1%);
  margin: 0;
}

.hp-about-cert-card {
  width: 100%;
}

.hp-about-cert-img {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: clamp(240px, 28vw, 320px);
  background: #f3f8f4;
  border: 1px solid rgba(6, 130, 31, 0.08);
  overflow: hidden;
  cursor: pointer;
}

.hp-about-cert-pic {
  max-width: 88%;
  max-height: 88%;
  object-fit: contain;
  transition: transform 0.4s ease;
}

.hp-about-cert-item:hover .hp-about-cert-pic {
  transform: scale(1.06);
}

.hp-about-cert-zoom {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  justify-content: center;
  align-items: center;
  opacity: 0;
  background: rgba(6, 130, 31, 0.1);
  transition: opacity 0.35s ease;
  pointer-events: none;
}

/* Match back-to-top circle: gold bg + deeper gold on hover */
.hp-about-cert-zoom::before {
  content: "";
  position: absolute;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--hp-accent, #c9a227);
  transition: background-color 0.3s ease;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.hp-about-cert-zoom::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  background:
    linear-gradient(#fff, #fff) center / 18px 2px no-repeat,
    linear-gradient(#fff, #fff) center / 2px 18px no-repeat;
  pointer-events: none;
}

.hp-about-cert-zoom img {
  position: relative;
  z-index: 1;
  width: 44px;
  height: 44px;
  object-fit: contain;
  opacity: 0;
}

.hp-about-cert-item:hover .hp-about-cert-zoom {
  opacity: 1;
  pointer-events: auto;
}

.hp-about-cert-zoom:hover::before {
  background-color: var(--hp-accent-deep, #a8861c);
}

.hp-about-cert-desc {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  margin: 0;
  padding: 12px 14px;
  background: linear-gradient(180deg, rgba(232, 244, 235, 0.96) 0%, #e2f0e5 100%);
  color: #2a4a32;
  font-size: 13px;
  line-height: 1.55;
  text-align: left;
  transform: translateY(100%);
  opacity: 0;
  transition: transform 0.35s ease, opacity 0.35s ease;
  pointer-events: none;
}

.hp-about-cert-item:hover .hp-about-cert-desc,
.hp-about-cert-item:focus-within .hp-about-cert-desc {
  transform: translateY(0);
  opacity: 1;
}

.hp-about-cert-text {
  margin-top: 28px;
}

.hp-about-cert-text span {
  display: inline-block;
  position: relative;
  padding-left: 40px;
  color: var(--hp-brand, #06821f);
  font-size: 15px;
  line-height: 1.4;
}

.hp-about-cert-text span::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 26px;
  height: 1px;
  margin-top: -0.5px;
  background: var(--hp-brand, #06821f);
}

.hp-about-cert-text h4 {
  margin: 16px 0 0;
  color: #555;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
}

@media (max-width: 900px) {
  .hp-about-certs {
    padding: 64px 0 40px;
  }

  .hp-about-certs-inner {
    width: min(1120px, calc(100% - 32px));
  }

  .hp-about-certs-lead {
    margin-bottom: 36px;
    font-size: 15px;
  }

  .hp-about-certs-group {
    margin-bottom: 40px;
    padding-bottom: 40px;
  }

  .hp-about-cert-item {
    width: calc(50% - 0.75%);
  }

  .hp-about-cert-text {
    margin-top: 20px;
  }

  .hp-about-cert-text h4 {
    font-size: 15px;
    margin-top: 12px;
  }
}

@media (max-width: 560px) {
  .hp-about-cert-item {
    width: 100%;
  }

  .hp-about-cert-img {
    height: 220px;
  }
}

/* 证照本页放大预览 */
body.hp-cert-lightbox-open {
  overflow: hidden;
}

.hp-about-cert-lightbox {
  position: fixed;
  inset: 0;
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  box-sizing: border-box;
}

.hp-about-cert-lightbox[hidden] {
  display: none !important;
}

.hp-about-cert-lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(10, 24, 14, 0.72);
  cursor: pointer;
}

.hp-about-cert-lightbox-panel {
  position: relative;
  z-index: 1;
  width: min(920px, 100%);
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  align-items: center;
  pointer-events: none;
}

.hp-about-cert-lightbox-close {
  position: absolute;
  top: -12px;
  right: -12px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--hp-accent, #c9a227);
  color: #fff;
  cursor: pointer;
  pointer-events: auto;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  transition: background-color 0.25s ease, color 0.25s ease;
}

.hp-about-cert-lightbox-close-icon {
  display: block;
  width: 18px;
  height: 18px;
}

.hp-about-cert-lightbox-close:hover {
  background: var(--hp-accent-deep, #a8861c);
  color: #fff;
}

.hp-about-cert-lightbox-img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: calc(100vh - 120px);
  object-fit: contain;
  background: #fff;
  border-radius: 4px;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.28);
  pointer-events: auto;
}

.hp-about-cert-lightbox-caption {
  margin: 14px 0 0;
  max-width: 100%;
  color: #fff;
  font-size: 15px;
  line-height: 1.5;
  text-align: center;
  pointer-events: none;
}

/* —— 发展历程：错落时间轴 —— */
.hp-about-history {
  background: #fff;
  padding: 88px 0 96px;
  border-top: 1px solid rgba(6, 130, 31, 0.08);
}

.hp-about-history-inner {
  width: min(1080px, calc(100% - 48px));
  margin: 0 auto;
}

.hp-about-history-heading {
  color: var(--hp-brand, #06821f);
  margin-bottom: 48px;
}

.hp-about-history-heading .section-heading-wrap {
  margin-top: -12px;
}

.hp-about-history-heading .section-heading-txt {
  margin: 28px 0 0 10px;
  color: var(--hp-brand, #06821f);
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.hp-about-timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

.hp-about-timeline::before {
  content: "";
  position: absolute;
  top: 12px;
  bottom: 0;
  left: 50%;
  width: 2px;
  margin-left: -1px;
  background: linear-gradient(
    180deg,
    rgba(6, 130, 31, 0.15),
    rgba(201, 162, 39, 0.45),
    rgba(6, 130, 31, 0.15)
  );
}

.hp-about-timeline-item:last-child {
  position: relative;
}

/* Mask the axis below the final marker */
.hp-about-timeline-item:last-child::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 24px;
  bottom: 0;
  width: 6px;
  margin-left: -3px;
  background: #fff;
  z-index: 0;
}

.hp-about-timeline-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 28px minmax(0, 1fr);
  gap: 0 20px;
  align-items: start;
  margin: 0 0 36px;
}

.hp-about-timeline-item:last-child {
  margin-bottom: 0;
}

.hp-about-timeline-marker {
  grid-column: 2;
  grid-row: 1;
  width: 14px;
  height: 14px;
  margin: 10px auto 0;
  border-radius: 50%;
  background: var(--hp-accent, #c9a227);
  box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.18);
  position: relative;
  z-index: 1;
}

.hp-about-timeline-year {
  margin: 0;
  color: var(--hp-brand, #06821f);
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hp-about-timeline-year span {
  display: inline-block;
}

.hp-about-timeline-body {
  min-width: 0;
}

.hp-about-timeline-body p {
  margin: 6px 0 0;
  color: #333;
  font-size: 16px;
  line-height: 1.7;
}

/* 奇数：左年份 / 右事件 */
.hp-about-timeline-item.is-year-left .hp-about-timeline-year {
  grid-column: 1;
  text-align: right;
  padding-right: 8px;
}

.hp-about-timeline-item.is-year-left .hp-about-timeline-body {
  grid-column: 3;
  text-align: left;
  padding-left: 8px;
}

/* 偶数：左事件 / 右年份 */
.hp-about-timeline-item.is-year-right .hp-about-timeline-body {
  grid-column: 1;
  grid-row: 1;
  text-align: right;
  padding-right: 8px;
}

.hp-about-timeline-item.is-year-right .hp-about-timeline-year {
  grid-column: 3;
  grid-row: 1;
  text-align: left;
  padding-left: 8px;
}

@media screen and (max-width: 767px) {
  .hp-about-history {
    padding: 64px 0 72px;
  }

  .hp-about-timeline {
    --hp-tl-rail: 22px;
  }

  .hp-about-timeline::before {
    left: calc(var(--hp-tl-rail) / 2);
    margin-left: -1px;
  }

  .hp-about-timeline-item:last-child::after {
    left: calc(var(--hp-tl-rail) / 2);
    margin-left: -3px;
    width: 6px;
  }

  .hp-about-timeline-item,
  .hp-about-timeline-item.is-year-left,
  .hp-about-timeline-item.is-year-right {
    grid-template-columns: var(--hp-tl-rail) minmax(0, 1fr);
    gap: 0 14px;
    margin-bottom: 28px;
  }

  .hp-about-timeline-marker {
    grid-column: 1;
    grid-row: 1 / span 2;
    justify-self: center;
    margin: 8px 0 0;
  }

  .hp-about-timeline-item .hp-about-timeline-year,
  .hp-about-timeline-item.is-year-left .hp-about-timeline-year,
  .hp-about-timeline-item.is-year-right .hp-about-timeline-year {
    grid-column: 2;
    grid-row: 1;
    text-align: left;
    padding: 0;
    font-size: 26px;
  }

  .hp-about-timeline-item .hp-about-timeline-body,
  .hp-about-timeline-item.is-year-left .hp-about-timeline-body,
  .hp-about-timeline-item.is-year-right .hp-about-timeline-body {
    grid-column: 2;
    grid-row: 2;
    text-align: left;
    padding: 0;
  }

  .hp-about-timeline-body p {
    margin-top: 8px;
    font-size: 15px;
  }
}

/* Intro copy panels synced with image slider */
.hp-about-intro-panel[hidden] {
  display: none !important;
}

.hp-about-intro-panel.is-active {
  display: block;
  animation: hp-about-panel-fade 0.45s ease;
}

@keyframes hp-about-panel-fade {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.hp-about-intro-panel .hp-about-intro-text strong {
  color: inherit;
  font-weight: 700;
}

@media (prefers-reduced-motion: reduce) {
  .hp-about-intro-panel.is-active {
    animation: none;
  }
}