/* 关于我们 */
body {
  background-color: #f1f6fb;
}
.banner {
  height: 435px;
  display: flex;
  align-items: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.banner-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}
.banner .wrap {
  position: relative;
  z-index: 1;
}
.banner .text1 {
  font-size: 20px;
}
.banner .text2 {
  font-size: 48px;
  animation-delay: 0.5s;
  -webkit-animation-delay: 0.5s;
}
.banner .text1,
.banner .text2 {
  opacity: 0;
  animation: fadeInUp 1s forwards;
  -webkit-animation: fadeInUp 1s forwards;
}
.breadcrumb {
  position: sticky;
  top: 74px;
  z-index: 99;
}
.breadcrumb .anchor {
  display: flex;
  gap: 20px;
  font-size: 20px;
  position: relative;
}
.breadcrumb .anchor li {
  padding: 0 30px 6px;
  cursor: pointer;
  color: #666;
  transition: color 0.3s ease;
  position: relative;
  white-space: nowrap;
}
.breadcrumb .anchor li.current {
  color: var(--primary-color);
}
.breadcrumb .anchor-indicator {
  position: absolute;
  bottom: -8px;
  left: 0;
  height: 3px;
  background: var(--primary-color);
  border-radius: 2px;
  transition:
    left 0.35s cubic-bezier(0.4, 0, 0.2, 1),
    width 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}
/* 集团概况 */
.group-info {
  background: url(../images/about_us/bg_1.png) no-repeat center bottom;
  background-size: cover;
  padding: 70px 0;
}
.group-info > div {
  display: flex;
  justify-content: space-between;
  gap: 40px;
}
.group-info .col-l h2 {
  font-size: 48px;
  font-weight: 700;
  margin-bottom: 15px;
}
.group-info .col-l p {
  font-size: 20px;
  margin-bottom: 10px;
}
.group-info .col-l .desc {
  font-size: 15px;
  line-height: 30px;
}
.group-info .col-l {
  flex: 1;
}
.group-info .col-r {
  flex: 1;
  display: flex;
  align-items: center;
}
.group-info .col-r img {
  width: 100%;
  height: auto;
}
/* 公司介绍 */
.company-statistics {
  background-color: #0284c7;
  height: 200px;
  color: #fff;
  position: relative;
}
.company-statistics::after {
  content: '';
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  border-left: 18px solid transparent;
  border-right: 18px solid transparent;
  border-top: 30px solid #0284c7;
}
.company-statistics > div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 100%;
}
.company-statistics h3 {
  font-size: 48px;
  font-weight: 700;
}
.company-statistics p {
  font-size: 20px;
}
.company-statistics ul {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.company-statistics ul li {
  border-left: 1px solid rgba(255, 255, 255, 0.322);
  padding: 0 60px 0 30px;
}
.company-statistics ul li p:nth-child(1) {
  font-size: 15px;
}
.company-statistics ul li p:nth-child(1) span {
  display: inline-block;
  font-size: 48px;
  font-weight: 400;
  margin-right: 5px;
}
.company-statistics ul li p:nth-child(2) {
  font-size: 12px;
}
.company-introduction {
  padding: 60px 0;
}
.company-introduction > div > img {
  max-width: 100%;
}
.company-introduction h3 {
  font-size: 20px;
  font-weight: 700;
  margin-top: 20px;
}
.company-introduction .desc {
  font-size: 15px;
  line-height: 30px;
  margin-top: 10px;
}
/* 公司资质 */
.company-qualification {
  padding: 70px 0;
}
.qualification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 40px;
}
.qualification-header h3 {
  font-size: 48px;
  font-weight: 400;
  margin-bottom: 6px;
}
.qualification-header h3 span {
  color: var(--primary-color);
}
.qualification-header h3 + p {
  font-size: 22px;
  color: #7e878c;
}
.qualification-nav {
  display: flex;
  align-items: center;
  gap: 20px;
}
.qualification-nav .swiper-button-prev,
.qualification-nav .swiper-button-next {
  position: static;
  width: 44px;
  height: 44px;
  margin-top: 0;
  border: 1px solid var(--primary-color);
  border-radius: 50%;
  background-color: #fff;
  background-size: 16px auto;
  background-position: center;
  background-repeat: no-repeat;
  cursor: pointer;
  transition: all 0.3s ease;
}
.qualification-nav .swiper-button-prev::after,
.qualification-nav .swiper-button-next::after {
  display: none;
}
.qualification-nav .swiper-button-next {
  background-image: url(../images/swiper_arrow_right_blue.png);
}
.qualification-nav .swiper-button-prev {
  background-image: url(../images/swiper_arrow_right_blue.png);
  transform: rotate(180deg);
}
.qualification-nav .swiper-button-prev:hover,
.qualification-nav .swiper-button-next:hover {
  background-color: var(--primary-color);
  border-color: var(--primary-color);
}
.qualification-nav .swiper-button-next:hover {
  background-image: url(../images/swiper_arrow_right_white.png);
}
.qualification-nav .swiper-button-prev:hover {
  background-image: url(../images/swiper_arrow_right_white.png);
}
.qualification-nav .swiper-button-prev.swiper-button-disabled,
.qualification-nav .swiper-button-next.swiper-button-disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: auto;
}
.qualification-nav .swiper-button-prev.swiper-button-disabled:hover,
.qualification-nav .swiper-button-next.swiper-button-disabled:hover {
  background-color: #fff;
  border-color: var(--primary-color);
}
.qualification-nav .swiper-button-next.swiper-button-disabled:hover {
  background-image: url(../images/swiper_arrow_right_blue.png);
}
.qualification-nav .swiper-button-prev.swiper-button-disabled:hover {
  background-image: url(../images/swiper_arrow_right_blue.png);
}
.fraction {
  font-size: 18px;
  color: #999;
  font-family: Arial, sans-serif;
  user-select: none;
  min-width: 55px;
  text-align: center;
}
.fraction .fraction-current {
  color: var(--primary-color);
  font-weight: 700;
  font-size: 22px;
}
.fraction .fraction-separator {
  margin: 0 2px;
  color: var(--primary-color);
  font-size: 24px;
}
.qualification-swiper {
  overflow: hidden;
}
.qualification-item {
  width: 100%;
  max-height: 456px;
  aspect-ratio: 3 / 4;
  display: flex;
  flex-direction: column;
  text-align: center;
  border-radius: 20px;
  border: 1px solid #f3f4f6;
  background: #fff;
  box-shadow: 0 4px 15px 0 rgba(3, 110, 183, 0.1);
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.qualification-item:hover {
  box-shadow: 0 4px 20px 0 rgba(3, 110, 183, 0.2);
}
.qualification-img {
  flex: 1;
  display: flex;
  padding: 20px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.qualification-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 24px 24px 0;
}
.qualification-item p {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  color: var(--text-color-1);
  padding: 10px 10px 20px;
}
.qualification-swiper .swiper-pagination {
  position: static;
  margin-top: 35px;
  text-align: center;
}
.qualification-swiper .swiper-pagination-bullet {
  width: 8px;
  height: 8px;
  background: #d1d5db;
  opacity: 1;
  margin: 0 5px;
  border-radius: 4px;
  transition: all 0.3s ease;
}
.qualification-swiper .swiper-pagination-bullet-active {
  width: 16px;
  background: var(--primary-color);
}

/* ========== Scroll-triggered Animations ========== */
.anim-fade-up {
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.anim-fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.anim-fade-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.anim-fade-left.visible {
  opacity: 1;
  transform: translateX(0);
}

.anim-fade-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.anim-fade-right.visible {
  opacity: 1;
  transform: translateX(0);
}

/* Staggered delays */
.company-statistics ul li.anim-fade-up:nth-child(1) { transition-delay: 0.1s; }
.company-statistics ul li.anim-fade-up:nth-child(2) { transition-delay: 0.2s; }
.company-statistics ul li.anim-fade-up:nth-child(3) { transition-delay: 0.3s; }
.company-statistics ul li.anim-fade-up:nth-child(4) { transition-delay: 0.4s; }