:root {
    --color-bg: #ffffff;
    --color-muted: #f5f5f3;
    --color-card: #ebebe8;
    --color-text: #1a1a1a;
    --color-text-secondary: #555555;
    --color-text-muted: #888888;
    --color-orange: #e50817;
   
}

 .hero {padding: clamp(30px, 4.166667vw, 80px) 0 clamp(30px, 5.208vw, 100px);}
    .hero-tag { font-size: 12px; font-weight: 600; letter-spacing: 3px; color: var(--color-orange); text-transform: uppercase; margin-bottom: 24px; }
    .hero-title {font-size: clamp(24px, 3.33vw, 64px);font-weight: 700;line-height: 1.05;letter-spacing: -1.5px;margin-bottom: 28px;max-width: 900px;}
    .hero-desc {font-size: clamp(14px, 1.04vw, 20px);color: var(--color-text-secondary);max-width: 720px;line-height: 1.7;}
    .hero-image {margin-top: clamp(20px, 3.125vw, 60px);aspect-ratio: 16/9;overflow: hidden;background: var(--color-muted);}
    .hero-image img { width: 100%; height: 100%; object-fit: cover; }
    .section {padding: clamp(30px, 5.208vw, 100px) 0;}
    .section-tag { font-size: 12px; font-weight: 600; letter-spacing: 3px; color: var(--color-text-muted); text-transform: uppercase; margin-bottom: 20px; }
    .section-title {font-size: clamp(20px, 2.19vw, 42px);font-weight: 700;line-height: 1.15;letter-spacing: -0.5px;margin-bottom: 32px;max-width: 800px;}
    .section-desc {font-size: clamp(14px, 0.94vw, 18px);color: var(--color-text-secondary);line-height: 1.8;max-width: 720px;}
    .problem { background: var(--color-muted); }
    .problem-grid {display: grid;grid-template-columns: 1fr 1fr;gap: clamp(30px, 4.166667vw, 80px);align-items: start;}
    .problem-list { list-style: none; }
    .problem-list li { display: grid; grid-template-columns: 140px 1fr; gap: 24px; padding: 24px 0; border-top: 1px solid #d8d8d8; }
    .problem-list li:last-child { border-bottom: 1px solid #d8d8d8; }
    .problem-space { font-size: 16px; font-weight: 700; color: var(--color-text); line-height: 1.3; }
    .problem-space small { display: block; font-size: 12px; font-weight: 400; color: var(--color-text-muted); margin-top: 4px; letter-spacing: 1px; }
    .problem-issue {font-size: clamp(14px, 0.78vw, 15px);color: var(--color-text-secondary);line-height: 1.7;}
    .mechanism-grid {display: grid;grid-template-columns: repeat(3, 1fr);gap: 32px;margin-top: clamp(30px, 3.125vw, 60px);}
    .mechanism-card { padding: 40px 32px; background: var(--color-muted); }
    .mechanism-num {font-size: clamp(32px, 2.50vw, 48px);font-weight: 700;color: var(--color-orange);line-height: 1;margin-bottom: 16px;}
    .mechanism-title {font-size: clamp(16px, 1.04vw, 20px);font-weight: 700;margin-bottom: 12px;line-height: 1.3;}
    .mechanism-title span { display: block; font-size: 13px; font-weight: 500; color: var(--color-text-muted); margin-top: 4px; letter-spacing: 0.5px; }
    .mechanism-desc {font-size: clamp(14px, 0.78vw, 15px);color: var(--color-text-secondary);line-height: 1.7;}
    .specs { background: var(--color-text); color: #fff; }
    .specs .section-tag { color: rgba(255,255,255,0.6); }
    .specs .section-title { color: #fff; }
    .specs-grid {display: grid;grid-template-columns: repeat(4, 1fr);gap: 24px;margin-top: clamp(30px, 3.125vw, 60px);}
    .spec-card { padding: 32px; background: #2a2a2a; }
    .spec-num {font-size: clamp(32px, 2.30vw, 44px);font-weight: 700;color: var(--color-orange);line-height: 1;margin-bottom: 8px;}
    .spec-unit { font-size: 16px; color: rgba(255,255,255,0.5); margin-left: 4px; font-weight: 400; }
    .spec-label { font-size: 14px; color: rgba(255,255,255,0.85); margin-top: 8px; line-height: 1.5; }
    .products {padding: clamp(30px, 5.208vw, 100px) 0;}
    .products-list {display: grid;grid-template-columns: repeat(2, 1fr);gap: 32px;margin-top: clamp(30px, 3.125vw, 60px);}
    .product-card { display: grid; grid-template-columns: 1fr 1.5fr; gap: 32px; padding: 32px; background: var(--color-muted); }
    .product-image { aspect-ratio: 1/1; overflow: hidden; background: #fff; }
    .product-image img { width: 100%; height: 100%; object-fit: cover; }
    .product-name {font-size: clamp(18px, 1.15vw, 22px);font-weight: 700;margin-bottom: 12px;}
    .product-desc {font-size: clamp(14px, 0.78vw, 15px);color: var(--color-text-secondary);line-height: 1.7;margin-bottom: 20px;}
    .product-tag { display: inline-block; padding: 6px 14px; background: #fff; font-size: 12px; font-weight: 600; color: var(--color-text); margin-right: 8px; margin-bottom: 8px; }
    .scenes {background: var(--color-muted);padding: clamp(30px, 5.208vw, 100px) 0;}
    .scene-grid {display: grid;grid-template-columns: repeat(4, 1fr);gap: 16px;margin-top: clamp(30px, 3.125vw, 60px);}
    .scene-card { position: relative; aspect-ratio: 3/4; overflow: hidden; background: #ddd; }
    .scene-card img { width: 100%; height: 100%; object-fit: cover; }
    .scene-card-overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.75), transparent 60%); display: flex; align-items: flex-end; padding: 24px; }
    .scene-card-name { color: #fff; font-size: 16px; font-weight: 600; line-height: 1.3; }
    .scene-card-tag { display: block; color: rgba(255,255,255,0.7); font-size: 12px; font-weight: 400; margin-top: 4px; }
    .related {padding: clamp(30px, 5.208vw, 100px) 0;}
    .related-grid {display: grid;grid-template-columns: repeat(3, 1fr);gap: 24px;margin-top: clamp(30px, 3.125vw, 60px);}
    .related-card { background: var(--color-muted); overflow: hidden; }
    .related-card-image { aspect-ratio: 4/3; overflow: hidden; }
    .related-card-image img { width: 100%; height: 100%; object-fit: cover; }
    .related-card-body { padding: 24px; }
    .related-card-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
    .related-card-desc { font-size: 14px; color: var(--color-text-secondary); line-height: 1.6; }
   
    @media(max-width:991px){
      .hero-title {margin-bottom: 15px;}
      .hero-tag { margin-bottom: 15px;}
      .problem-grid {grid-template-columns: 1fr;}
      .section-title {margin-bottom: 15px;}
      .mechanism-grid {grid-template-columns: 1fr;gap: 15px;}
      .specs-grid{grid-template-columns: 1fr;gap: 15px;}
      .products-list{grid-template-columns: 1fr;gap: 15px;}
      .product-card {grid-template-columns: 1fr;gap: 15px;padding: 15px;}
      .scene-grid {grid-template-columns: repeat(2, 1fr);gap: 15px;}
      .related-grid{grid-template-columns: 1fr;gap: 15px;}
      .problem-list li {grid-template-columns: 1fr;gap: 15px;padding: 15px 0;}
      .mechanism-card,.spec-card,.scene-card-overlay,.related-card-body {padding: 15px;}
    }
   
.main {
  padding-top: 50px;
  padding-bottom: 60px;
}

.app-tit {
  display: flex;
  align-items: center;
  margin-bottom: 70px;
}

.app-tit .pic {
  width: 46%;
  position: relative;
}

.app-tit .pic img {
  position: relative;
  z-index: 10;
}

.app-tit .txt {
  flex: 1;
  margin-right: 10px;
}

.app-tit .txt h1 {
  font-size: 32px;
  color: #212121;
  line-height: 1;
  font-weight: 700;
}

.app-tit .txt h1::after {
  content: "";
  width: 80px;
  height: 2px;
  background: var(--color-primary);
  margin: 30px auto 0 0;
  display: block;
}

.app-tit .txt p {
  font-size: 16px;
  color: #666;
  line-height: 32px;
  margin: 20px 0 0;
  display: -webkit-box;
  overflow: hidden;
  white-space: normal !important;
  text-overflow: ellipsis;
  word-wrap: break-word;
  -webkit-line-clamp: 6;
  -webkit-box-orient: vertical;
}

.app-tit .txt a {
  margin: 40px 0 0;
}

.app-tit .more1 {
  padding: 0 40px;
  height: 64px;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 1px solid #dbe0e3;
  font-size: 15px;
  color: #212121;
  font-weight: 700;
}

.app-tit .more1 span {
  width: 13px;
  height: 12px;
  background: var(--color-primary);
  margin-right: 10px;
}

.app-tit .more1 span:last-child {
  margin-right: 27px;
}

.app-tit .more1:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.app-tit .more1:hover span {
  background: #fff;
}

.news-content {
  line-height: 2;
  font-size: 17px;
  color: #666;
  border-top: 1px solid #eee;
  padding: 40px 0 20px;
}

.news-content p {
  margin-bottom: 20px;
}

.news-content strong {
  color: #333;
}

.news-content h5 {
  font-size: 22px;
  color: #000009;
  font-weight: 700;
  margin-bottom: 20px;
}

.news-content .table-response {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
}

.news-content table {
  width: 100%;
  margin-bottom: 20px;
  border: 1px solid #dcdcdc;
  line-height: 24px;
  color: #484848;
  font-size: 14px;
}

.news-content table tr>th {
  padding: 10px 20px;
  color: #212121;
  font-weight: 600;
  border: 1px solid #dcdcdc;
  text-align: center;
}

.news-content table tr>td {
  padding: 10px 20px;
  border: 1px solid #dcdcdc;
  text-align: center;
}

.pnbar {
  margin: 0 0 60px;
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: space-between;
  justify-content: space-between;
  -webkit-align-items: center;
  align-items: center;
  border-bottom: 1px solid #eee;
  padding: 70px 0 30px;
}

.pnbar>a {
  width: 40%;
  position: relative;
  overflow: hidden;
}

.pnbar>a.m {
  width: 20%;
  text-align: center;
  font-size: 16px;
  color: #999;
}

.pnbar>a.l,
.pnbar>a.r {
  display: -webkit-flex;
  display: flex;
  -webkit-justify-content: flex-start;
  justify-content: flex-start;
  -webkit-align-items: center;
  align-items: center;
}

.pnbar>a.r {
  -webkit-flex-direction: row-reverse;
  flex-direction: row-reverse;
  text-align: right;
}

.pnbar i {
  color: #999;
  font-size: 16px;
  text-align: left;
  vertical-align: middle;
}

.pnbar em {
  font-size: 16px;
  color: #999;
  margin: 0 0 0 10px;
}

.pnbar p {
  margin: 0 0 0 20px;
  color: #212121;
  line-height: 28px;
  font-size: 18px;
  border: none;
}

.pnbar>a.r em {
  margin: 0 10px 0 0;
}

.pnbar>a.r p {
  margin: 0 20px 0 0;
}

.pnbar>a.m:hover {
  color: var(--color-primary);
}

.pnbar>a:hover i {
  color: #212121;
}

.pnbar>a:hover em {
  color: #212121;
}

.pnbar>a:hover p {
  color: var(--color-primary);
  text-decoration: underline;
}

@media screen and (max-width: 768px) {
  .main {
    padding-top: 25px;
    padding-bottom: 30px;
  }

  .app-tit {
    display: block;
    margin: 0 0 20px;
  }

  .app-tit .txt {
    margin: 0 0 20px;
  }

  .app-tit .txt p {
    font-size: 14px;
    -webkit-line-clamp: 3;
  }

  .app-tit .txt a {
    margin: 16px 0 0;
  }

  .app-tit .pic {
    width: 100%;
  }

  .pnbar {
    display: block;
    margin-top: 20px;
  }
  .pnbar > a {
    width: 100%;
    padding: 0 10px;
    flex-direction: row !important;
    text-align: left !important;
    border: 1px solid #ddd;
  }
  .pnbar > a.r {
    border-top: none;
  }
  .pnbar > a.m,
  .pnbar > a > i {
    display: none;
  }
  .pnbar > a > em,
  .pnbar > a > p {
    margin: 0 !important;
  }
  
  .pnbar em::after {
    content: ': ';
  }

  .pnbar p {
    padding: 7px 10px;
    font-size: 15px;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .app-tit {
    flex-wrap: wrap;
  }

  .app-tit .pic {
    width: 100%;
  }

  .pnbar {
    display: block;
  }

  .pnbar>a {
    width: 100%;
  }

  .pnbar>a.r {
    -webkit-flex-direction: initial;
    flex-direction: initial;
    text-align: left;
  }
}