/* ===== About1 page ===== */

@font-face {
  font-family: 'Muli';
 src: url('../fonts/TTRuiHeiJ-W4.ttf') format('opentype');
  font-weight: 700;
  font-style: normal;
}



.a1-banner {
  position: relative;
  min-height: 360px;
  height: 42vw;
  max-height: 520px;
  background: center/cover no-repeat;
/*  display: flex;*/
  align-items: center;
}

/* 内页 banner 固定：内容向上盖住 */
.a1-banner.is-fixed {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  width: 100%;
  z-index:-11;
}

.a1-banner-spacer {
  width: 100%;
  pointer-events: none;
  visibility: hidden;
}

body.has-fixed-banner{
  position: relative;
  z-index: 2;
}

.a1-banner-mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(15, 28, 22, 0.35) 0%, rgba(15, 28, 22, 0.10) 55%, rgba(15, 28, 22, 0) 100%);
}

.a1-banner-inner {
  position: relative;
  z-index: 1;
  width: min(1300px, 100%);
  margin: 0 auto;
  padding-top:280px;
  color: #fff;
}

.a1-banner-cn {
  margin: 0 0 8px;
  font-size: 35px;
  font-weight: 500;
}

.a1-banner-en {
  font-size:40px;
  font-weight: 700;
  line-height:0.7;
  font-family:Arial, Helvetica, sans-serif; 
}

/* Split sections */
.a1-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 640px;
  background: #f4f1ec;
}

.a1-split-media {
  position: relative;
  min-height: 640px;
  height: 100%;
  align-self: stretch;
  overflow: hidden;
  background-color: #c5d0c8;
}

.a1-split-media::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: var(--a1-media);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1);
  transition: transform 0.65s ease;
  will-change: transform;
}

.a1-split-media:hover::before {
  transform: scale(1.1);
}

.a1-split-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.2) 100%);
  z-index: 1;
  pointer-events: none;
}

.a1-split-media-content {
  position: absolute;
  left: 8%;
  right: 8%;
  bottom: 10%;
  z-index: 2;
  color: #fff;
}

.a1-split-label {
  margin: 0 0 0px;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.9;
}

.a1-split-headline {
  margin: 0 0 8px;
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
}

.a1-split-lead {
  margin: 0;
  max-width: 420px;
  font-size: 15px;
  line-height: 1.7;
  opacity: 0.92;
  color: #fff;
}

.a1-split-ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  padding:7px 22px;
  border: 1px solid rgba(255, 255, 255, 0.85);
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  transition: background 0.25s, color 0.25s;
}

.a1-split-ghost-btn:hover {
  background: #fff;
  color: #1b3022;
}

.a1-split-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 0px;
  background: #f4f1ec;
}

.a1-split-panel-inner {
  width: min(550px, 100%);
  text-align: center;
}

.a1-split-eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: #8a857c;
  text-transform: uppercase;
}

.a1-split-title {
  margin: 0 0 20px;
  font-size:30px;
  font-weight: 700;
  color: #1b3022;
  line-height: 1.3; text-align:left
}

.a1-split-body {
  margin: 0 0 28px;

  overflow: auto;
  text-align: justify;
  font-size: 14px;
  line-height: 1.9;
  color: #555;
  text-overflow:ellipsis;/*超出...*/ display:-webkit-box; -webkit-line-clamp:11;/*显示行数*/ -webkit-box-orient:vertical; overflow:hidden;
}

/* 公司介绍：截断但不显示省略号 */
.a1-intro .a1-split-body {
  display: block;
  -webkit-line-clamp: unset;
  -webkit-box-orient: unset;
  text-overflow: clip;
  max-height: calc(1.9em * 11);
  overflow: hidden;
}

.a1-split-body p {
  margin: 0 0 12px;
}

.a1-split-body img {
  max-width: 100% !important;
  width: auto !important;
  height: auto !important;
  display: block;
  margin: 8px 0;
}

.a1-split-btn {
  display: inline-block;
  min-width: 220px;
  padding: 14px 28px;
  background: #1b3022;
  color: #fff;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: opacity 0.25s, transform 0.25s;
}

.a1-split-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* Gallery */
.a1-gallery {
  padding: 72px 0 80px;
  background: #f7f7f5;
}

.a1-gallery-head,
.a1-history-head {
  width: min(1200px, 92%);
  margin: 0 auto 36px;
  text-align: center;
}

.a1-section-eyebrow {
  margin: 0 0 8px;
  font-size: 13px;
  letter-spacing: 0.14em;
  color: #8a857c;
  text-transform: uppercase;
}

.a1-section-title {
  margin: 0;
  font-size: clamp(26px, 3vw, 36px);
  color: #1b3022;
  font-weight: 700;
}

.a1-gallery-track-wrap {
  position: relative;
  width: min(1280px, 96%);
  margin: 0 auto;
}

.a1-gallery-track {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  padding: 8px 4px 16px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.a1-gallery-track::-webkit-scrollbar {
  display: none;
}

.a1-gallery-card {
  flex: 0 0 min(380px, 78vw);
  scroll-snap-align: start;
  margin: 0;
  border-radius: 24px;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
}

.a1-gallery-link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.a1-gallery-card img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: cover;
}

.a1-gallery-caption {
  display: block;
  padding: 14px 18px 18px;
  font-size: 14px;
  color: #333;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.a1-gallery-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
  width: 42px;
  height: 42px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.95);
  color: #1b3022;
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.a1-gallery-prev { left: -6px; }
.a1-gallery-next { right: -6px; }

.a1-gallery-arrow:hover {
  background: #1b3022;
  color: #fff;
}

.a1-gallery-more {
  margin-top: 28px;
  text-align: center;
}

.a1-gallery-more-btn {
  display: inline-block;
  min-width: 140px;
  padding: 7px 32px;
  background: #1b3022;
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: opacity 0.25s, transform 0.25s;
}

.a1-gallery-more-btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* History timeline */
.a1-history {
  padding: 72px 0 90px;
  background: #fff;
  overflow: hidden;
}

.a1-history-stage {
  position: relative;
  width: min(1100px, 94%);
  height: 130px;
  margin: 0 auto 28px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.a1-history-years {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8vw;
  pointer-events: none;
  user-select: none;
}

.a1-history-year {
  font-size: clamp(64px, 12vw, 140px);
  font-weight: 800;
  color: #ececec;
  line-height: 1;
  transition: color 0.35s, transform 0.35s, opacity 0.35s;
  opacity: 0.55;
}

.a1-history-year.is-active {
  color: #d8d8d8;
  opacity: 1;
  transform: scale(1.05);
}

.a1-history-year.is-side {
  opacity: 0.35;
  transform: scale(0.86);
}

.a1-history-visual {
  position: relative;
  z-index: 1;
  width: 160px;
  height: 160px;
  border-radius: 12px;
  overflow: hidden;
  background: #f3f3f3;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
}

.a1-history-visual img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.a1-history-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(800px, 92%);
  margin: 0 auto 28px;
}

.a1-history-nav {
  flex: 0 0 44px;
  width: 44px;
  height: 44px;
  border: 1px solid #ddd;
  border-radius: 50%;
  background: #fff;
  color: #333;
  font-size: 18px;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

.a1-history-nav:hover {
  background: #1b3022;
  border-color: #1b3022;
  color: #fff;
}

.a1-history-line {
  position: relative;
  flex: 1;
  height: 2px;
  background: #e6e6e6;
}

.a1-history-dots {
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.a1-history-dot {
  width: 12px;
  height: 12px;
  border: 2px solid #cfcfcf;
  border-radius: 50%;
  background: #fff;
  padding: 0;
  cursor: pointer;
  transition: background 0.25s, border-color 0.25s, transform 0.25s;
}

.a1-history-dot.is-active {
  background: #c45c26;
  border-color: #c45c26;
  transform: scale(1.2);
}

.a1-history-panels {
  width: min(720px, 90%);
  margin: 0 auto;
  text-align: center;
}

.a1-history-panel {
  display: none;
}

.a1-history-panel.is-active {
  display: block;
}

.a1-history-tag {
  margin: 0 0 10px;
  min-height: 22px;
  font-size: 19px;
  font-weight: 600;
  color: #c45c26;
}

.a1-history-tag:empty {
  display: none;
}

.a1-history-text {
  margin: 0;
  font-size:19px;
  line-height: 1.8;
  color: #444;
}

@media (max-width: 789px) {
  .a1-split,
  .a1-split--reverse {
    grid-template-columns: 1fr;
  }

  .a1-split--reverse .a1-split-panel {
    order: 2;
  }

  .a1-split--reverse .a1-split-media {
    order: 1;
  }

  .a1-split-media {
    min-height: 420px;
  }

  .a1-split-panel {
    padding: 28px 24px 28px 24px;
  }

  .a1-split-body {
    max-height: none;
  }

  .a1-banner {
    height: 280px;
    min-height: 240px;
  }

  .a1-gallery-card img {
    height: 200px;
  }

  .a1-history-stage {
    height: 220px;
  }

  .a1-history-visual {
    width: 120px;
    height: 120px;
  }

  .a1-links-grid {
    grid-template-columns: 1fr;
  }
}

/* 组织结构 / 资质荣誉 / 创新成果 */
.a1-links {
  padding: 90px 0 90px;
  background: #f7f7f5;
}

.a1-links-grid {
  width: min(1300px, 100%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.a1-links-card {
  display: block;
  text-align: center;
  text-decoration: none;
  border-radius: 18px;
  padding:60px 28px 60px;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.04);
}

.a1-links-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin-bottom: 22px;
  background: #fff;
  color: inherit;
  transition: background 0.3s ease, color 0.3s ease, transform 0.3s ease;
}

.a1-links-title {
  margin: 0 0 12px;
  font-size: 25px;
  font-weight: 700;
  line-height: 1.4;
  color: inherit;
}

.a1-links-desc {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: inherit;
  opacity: 0.82;
}

/* 三色卡片 */
.a1-links-card--org {
  background: #e4f4f1;
  color: #1a6b5c;
}

.a1-links-card--org:hover {
  background: #1f8a75;
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(31, 138, 117, 0.28);
}

.a1-links-card--honor {
  background: #f7f1e6;
  color: #8a6a32;
}

.a1-links-card--honor:hover {
  background: #b8944a;
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(184, 148, 74, 0.28);
}

.a1-links-card--team {
  background: #e8eef5;
  color: #2f4d6e;
}

.a1-links-card--team:hover {
  background: #3a5f86;
  color: #fff;
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(58, 95, 134, 0.28);
}

.a1-links-card:hover .a1-links-icon {
  background: rgba(255, 255, 255, 0.2);
  color: #fff;
  transform: scale(1.06);
}

@media (max-width: 768px) {

.a1-banner-en {
  font-size:30px;
  font-weight: 700; 
  line-height:0.7;
  font-family:Arial, Helvetica, sans-serif; 
}

.a1-banner-inner {
  position: relative;
  z-index: 1;
  width: min(1300px, 90%);
  margin: 0 auto;
  padding-top: 80px;
  color: #fff;
}
/* Gallery */
.a1-gallery {
  padding: 40px 0 30px;
  background: #f7f7f5;
}

  .a1-history-stage {
    height:auto; padding-top:15px; padding-bottom:30px;
  }

/* 组织结构 / 资质荣誉 / 创新成果 */
.a1-links {
  padding: 40px 40px 40px;
  background: #f7f7f5;
}


.a1-links-grid {
  width: min(1300px, 95%);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(1, 1fr);
  gap: 24px;
}

}