/* =====================================================
   千木云集 - 关于我们页样式
   ===================================================== */

/* ---------- Hero（森林大图，同首页） ---------- */
.ab-hero {
  position: relative;
  height: 88vh;
  min-height: 580px;
  background: url('') center / cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ab-hero::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(0,0,0,.28), rgba(0,0,0,0) 35%, rgba(0,0,0,.32));
}
.ab-hero-tagline {
  position: absolute;
  top: 118px; left: 0; right: 0;
  text-align: center;
  color: #fff;
  font-size: 20px;
  letter-spacing: 10px;
  z-index: 2;
  text-shadow: 0 2px 12px rgba(0,0,0,.35);
}
.ab-hero-bottom {
  position: absolute;
  bottom: 10%; left: 0; right: 0;
  text-align: center;
  z-index: 2;
  color: #fff;
}
.ab-hero-bottom b {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: 8px;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-shadow: 0 3px 18px rgba(0,0,0,.4);
}
.ab-hero-bottom b svg { width: 32px; height: 32px; fill: var(--green-light); }
.ab-hero-bottom p { margin-top: 14px; font-size: 13px; letter-spacing: 6px; color: rgba(255,255,255,.88); }

/* ---------- 公司简介 ---------- */
.about-sec { background:#f5f5f5; padding: 90px 0 100px; position: relative; }

.intro-l{ padding:0px 5px;}
.intro-img { width: 100%; display: block; object-fit: cover; /*box-shadow: 0 14px 34px rgba(0,0,0,.12); */}
.intro-en { font-size: 19px; font-weight: 700; color: #333; letter-spacing: .5px; line-height: 1.5; }
.intro-green { color: var(--green); font-size: 14px; line-height: 2; margin: 18px 0 10px; }
.intro-text { color: #666; font-size: 14px; line-height: 2.1; text-align: justify; }
.logos-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px 34px;
  margin-top: 26px;
  color: #555;
}
.logos-row .lg-wr { font-family: Georgia, serif; font-size: 17px; font-weight: 700; }
.logos-row .lg-wr b { border: 1.5px solid #555; padding: 1px 6px; font-style: italic; margin-right: 6px; }
.logos-row .lg-su {
  border: 1.5px solid #555; border-radius: 50%;
  width: 42px; height: 42px;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 13px;
}
.logos-row svg { width: 34px; height: 22px; fill: #555; }
.sign {
  color: var(--green);
  font-size: 17px;
  margin-top: 20px;
  font-weight: 600;
  letter-spacing: 1px;
}
.intro-bottom { display: flex; justify-content: flex-end; margin-top: 20px; }
.intro-bottom img { width: 260px; box-shadow: 0 10px 26px rgba(0,0,0,.14); }

/* ---------- 发展历程 ---------- */
.history-sec {
  position: relative;
  padding: 110px 0 100px;
  background: url('/images/fzlcbg.jpg') center / cover no-repeat;
}
/* ---------- 发展历程：prev-btn + tl-stage + next-btn ---------- */
.timeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  padding: 20px 0 30px;
  position: relative;
}

/* 中间舞台：固定宽度，overflow hidden，内部放横线 + 轨道 */
.tl-stage {
  position: relative;
  width: 100%;
  max-width: 100%;
  overflow: hidden;
}

/* 中间横线：只在 stage 内部，不跨 prev/next 按钮 */
.tl-line {
  position: absolute;
  top: 50%;
  height: 1px;
  background: #d8d8d8;
  z-index: 0;
}
.tl-line-left{
  left: 180px;
  width: 20%;
}
.tl-line-right{
  right: 180px;
  width: 20%;
}
/* 轨道：所有 slide 横向排列，JS 控制 translateX */
.tl-track {
  display: flex;
  transition: transform .5s ease;
  position: relative;
  z-index: 2;
}

/* 每个 slide 宽度 = stage 宽度 / 3，保证一屏正好 3 个可见 */
.tl-slide {
  flex: 0 0 calc(100% / 3);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
}
.tl-slide-left{
  justify-content: left;
}
.tl-slide-right{
  justify-content: right;
}
/* active slide 的年份放大，浮于横线之上 */
.tl-slide .tl-year {
  font-size: 40px;
  font-weight: 600;
  color: var(--green);
  line-height: 1;
  transition: all .4s ease;
}
.tl-slide:hover .tl-year { color: var(--green); }
.tl-slide.active .tl-year {
  font-size: 140px;
  font-weight: 800;
  color: var(--green);
  letter-spacing: -4px;
  transform: translateY(-10px);
}

/* 翻页按钮 */
.tl-btn {
  width: 44px;
  height: 44px;
  border: 0px solid #222;
  border-radius: 50%;
  background: transparent;
  color: #666;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .3s;
  flex-shrink: 0;
  padding: 0;
  z-index: 5;
  position: absolute;
}
.tl-btn:hover {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}
.tl-btn:disabled {
  border-color: #ccc;
  color: #ccc;
  cursor: not-allowed;
}
.tl-btn svg { width: 32px; height: 32px; }
.tl-btn.prev { left: 120px; }
.tl-btn.next { right: 120px; }
/* 历史说明：默认隐藏只有 .active 显示 */
.hist-notes { margin-top: 40px; text-align: center; }
.hist-notes .hn-item { display: none; }
.hist-notes .hn-item.active { display: block; }
.hist-notes p {
  font-size: 14px;
  color: #444;
  line-height: 2.2;
  display: flex;
  align-items: center;
  justify-content: left;
  gap: 10px;
  margin: 0;
}
.hn-content{display: inline-block; text-align: left;}
.hist-notes p::before {
  content: '';
  width: 5px; height: 5px;
  background: var(--green);
  flex-shrink: 0;
  border-radius: 0;
  transform: rotate(45deg);
}

/* ---------- 荣誉资质 ---------- */
.honor-sec {
  background: url('/images/gsrybg.jpg') center / cover no-repeat;
  padding: 90px 0 100px;
}
.honor-row { display: flex; gap: 30px; align-items: stretch; }
.cert-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}
.cert-grid img {
  width: 100%;
  aspect-ratio: 1.41;
  object-fit: cover;
  background: #fff;
  border: 1px solid rgba(0,0,0,.06);
  box-shadow: 0 8px 20px rgba(90,70,130,.12);
  transition: transform .3s;
}
.cert-grid img:hover { transform: translateY(-4px); }
.trophy-box { width: 240px; flex-shrink: 0; display: flex; align-items: center; }
.trophy-box img {
  width: 100%;
  filter: drop-shadow(0 18px 30px rgba(150,110,30,.35));
}

/* ---------- 材质应用 ---------- */
.material-sec { padding: 90px 0 100px; background:url('/images/9.jpg') center / cover no-repeat;}
.mat-intro {
  text-align: center;
  color: #666;
  font-size: 14px;
  line-height: 2;
  max-width: 860px;
  margin: 0 auto 36px;
  letter-spacing: .5px;
}
.mat-swiper { padding: 6px 4px 46px; height:420px; }
.mat-card { background: #fff; color: #333; position: relative; overflow: hidden; box-shadow: 0 14px 34px rgba(0,0,0,.02);  border-radius:8px;}
.mat-card > img { width: 100%; height: 250px; object-fit: cover; display: block; }
.mat-tag {
  position: absolute;
  top: 0; left: 0;
  background: var(--green);
  color: #333;
  font-size: 12px;
  letter-spacing: 2px;
  padding: 5px 12px;
  z-index: 2;
}
.mat-body { padding: 18px 18px 24px; }
.mat-body h4 { font-size: 15px; font-weight:normal; letter-spacing: 1px; text-align:center; }
.mat-body p { font-size: 12px; color: #666; line-height: 1.9; margin-top: 10px; }
.mat-swiper .swiper-pagination { bottom: 8px; }
.mat-swiper .swiper-pagination-bullet { background: #ccc; opacity: 1; }
.mat-swiper .swiper-pagination-bullet-active { background: var(--green); width: 20px; border-radius: 4px; }

@media (max-width: 992px) {
  .ab-hero { height: 70vh; min-height: 460px; }
  .ab-hero-tagline { font-size: 15px; letter-spacing: 6px; top: 90px; }
  .ab-hero-bottom b { font-size: 26px; letter-spacing: 5px; }
  .ab-hero-bottom b svg { width: 24px; height: 24px; }
  .ab-hero-bottom p { font-size: 12px; letter-spacing: 4px; }
  .badge-circle { display: none; }
  .about-sec { padding: 70px 0 80px; }
  .intro-en { font-size: 16px; }
  .intro-green { font-size: 13px; line-height: 1.9; }
  .intro-text { font-size: 13px; line-height: 2; }
  .logos-row { gap: 10px 18px; margin-top: 20px; }
  .logos-row .lg-wr { font-size: 14px; }
  .logos-row .lg-su { width: 36px; height: 36px; font-size: 11px; }
  .sign { font-size: 15px; margin-top: 16px; }
  .intro-bottom { justify-content: center; margin-top: 16px; }
  .intro-bottom img { width: 100%; max-width: 360px; }
  .history-sec { padding: 80px 0 80px; }
  .tl-year.main { font-size: 56px; }
  .timeline { gap: 22px; }
  .hist-notes { margin-top: 32px; }
  .hist-notes p { font-size: 13px; line-height: 2; }
  .honor-sec { padding: 70px 0 80px; }
  .honor-row { flex-direction: column; gap: 24px; }
  .trophy-box { width: 200px; margin: 0 auto; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-con img{ display:block; max-width:100%;}
  .material-sec { padding: 70px 0 80px; }
  .mat-intro { font-size: 13px; line-height: 1.9; margin-bottom: 28px; }
  .mat-card > img { height: 200px; }
}

@media (max-width: 576px) {
  .ab-hero { height: 60vh; min-height: 360px; }
  .ab-hero-tagline { font-size: 12px; letter-spacing: 4px; top: 70px; }
  .ab-hero-bottom b { font-size: 20px; letter-spacing: 3px; gap: 8px; }
  .ab-hero-bottom b svg { width: 20px; height: 20px; }
  .ab-hero-bottom p { font-size: 11px; letter-spacing: 3px; }
  .about-sec { padding: 54px 0 56px; }
  .intro-en { font-size: 13px; }
  .intro-green { font-size: 12px; line-height: 1.85; margin: 14px 0 8px; }
  .intro-text { font-size: 12px; line-height: 1.9; }
  .logos-row { gap: 8px 12px; margin-top: 16px; }
  .logos-row .lg-wr { font-size: 12px; }
  .logos-row .lg-wr b { padding: 1px 4px; margin-right: 4px; }
  .logos-row .lg-su { width: 32px; height: 32px; font-size: 10px; }
  .logos-row svg { width: 26px; height: 18px; }
  .sign { font-size: 13px; margin-top: 12px; letter-spacing: .5px; }
  .intro-bottom img { width: 100%; }
  .history-sec { padding: 56px 0 56px; }
  .tl-year { font-size: 18px; }
  .tl-year.main { font-size: 40px; }
  .tl-arrow { width: 36px; height: 36px; }
  .tl-arrow svg { width: 14px; height: 14px; }
  .timeline { gap: 12px; }
  .hist-notes { margin-top: 22px; }
  .hist-notes p { font-size: 12px; line-height: 1.85; gap: 8px; }
  .hist-notes p::before { width: 5px; height: 5px; }
  .honor-sec { padding: 54px 0 56px; }
  .cert-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .trophy-box { width: 150px; }
  .material-sec { padding: 54px 0 56px; }
  .mat-intro { font-size: 12px; line-height: 1.85; margin-bottom: 22px; }
  .mat-card > img { height: 170px; }
  .mat-body { padding: 14px 14px 20px; }
  .mat-body h4 { font-size: 14px; }
  .mat-body p { font-size: 11px; line-height: 1.7; margin-top: 8px; }
  .tl-slide .tl-year {
    font-size: 20px;
}
  .tl-slide.active .tl-year {
    font-size: 40px;
    font-weight: 800;
    color: var(--green);
    letter-spacing: -4px;
    transform: translateY(-1px);
}
.tl-btn{top: 60px;width: 32px;
    height: 32px;}
.tl-btn svg {
    width: 22px;
    height: 22px;
}
.tl-line-left {
    left: 60px;
    width: 15%;
}

.tl-line-right {
    right: 60px;
    width: 15%;
}
}