/* ===== 通用板块标题样式 ===== */
.section-main-title {
  font-size: 28px;
  text-align: center;
  margin-bottom: 12px;
  font-weight: 500;
}

.section-subtitle {
  font-size: 14px;
  color: var(--color-text-light);
  text-align: center;
  margin-bottom: 30px;
  letter-spacing: 2px;
}

/* ===== 公司简介核心板块 ===== */
.about-first {
  width: 100%;
  background-color: #fff;
  padding: 0;
}

.about-first .container {
  width: 100%;
  max-width: 100%;
  margin: 0;
  display: flex;
  align-items: stretch;
}

.about-first-content {
  width: 50%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px 8%;
}

.about-title {
  font-size: 32px;
  color: #333;
  margin-bottom: 30px;
  font-weight: 600;
}

.about-text {
  font-size: 16px;
  line-height: 1.8;
  color: #333;
}

.about-text p {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  position: relative;
  z-index: 2;
  margin-bottom: 20px;
  text-align: justify;
}

.about-first-img {
  width: 50%;
}

.about-first-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .about-first .container {
    flex-direction: column;
  }

  .about-first-content,
  .about-first-img {
    width: 100%;
  }

  .about-first-content {
    padding: 40px 5%;
  }

  .about-title {
    font-size: 24px;
    margin-bottom: 20px;
  }

  .about-text {
    font-size: 14px;
    line-height: 1.6;
  }
}

/* ===== 发展历程板块 ===== */
.about-timeline {
  padding: 80px 0;
  background-image: url("../images/about/timeline.webp");
  margin-bottom: 30px;
}

.about-timeline .container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.timeline-content {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
}

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

.timeline-list::before {
  content: '';
  position: absolute;
  left: 150px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--color-orange);
  z-index: 1;
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
  padding-left: 180px;
  min-height: 60px;
  z-index: 2;
}

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

.timeline-item::before {
  content: '';
  position: absolute;
  left: 145px;
  top: 8px;
  width: 12px;
  height: 12px;
  border: 2px solid var(--color-blue);
  background-color: #fafcff;
  border-radius: 50%;
  z-index: 3;
  box-sizing: border-box;
}

.timeline-item::after {
  content: '';
  position: absolute;
  left: 148px;
  top: 6px;
  width: 6px;
  height: 20px;
  background-color: #fafcff;
  z-index: 2;
  pointer-events: none;
}

.timeline-year {
  position: absolute;
  left: 0;
  top: 0;
  width: 120px;
  font-size: 24px;
  font-weight: 700;
  color: var(--color-blue);
  line-height: 1.4;
  text-align: right;
  padding-right: 20px;
  box-sizing: border-box;
  z-index: 2;
}

.timeline-desc {
  font-size: 15px;
  color: #333;
  line-height: 1.7;
  position: relative;
  z-index: 2;
}

.timeline-desc p {
  margin-bottom: 10px;
}

.timeline-desc p:last-child {
  margin-bottom: 0;
}

@media (max-width: 768px) {

  .timeline-list::before,
  .timeline-item::before,
  .timeline-item::after {
    display: none;
  }

  .timeline-item {
    padding-left: 0;
    margin-bottom: 30px;
    z-index: auto;
  }

  .timeline-year {
    position: static;
    width: auto;
    text-align: left;
    font-size: 22px;
    margin-bottom: 8px;
    padding-right: 0;
    z-index: auto;
  }

  .timeline-desc {
    font-size: 14px;
    z-index: auto;
  }
}

/* ===== 荣誉资质板块 ===== */
.about-honor .honor-image {
  text-align: center;
  margin-top: 30px;
}

.about-honor .honor-image img {
  max-width: 100%;
  height: auto;
  border-radius: 12px;
}

/* ===== 联系我们板块 ===== */
.contact-image-wrapper {
  width: 100%;
  margin: 40px 0 0px;
  border-radius: 12px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.contact-image img {
  width: 100%;
  height: auto;
  max-height: 610px;
  overflow: hidden;
  border-radius: 12px;
}