/* 基础样式（仅保留头部所需） */
:root {
  --border: #e5e7eb;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, "Microsoft YaHei", sans-serif; color: #111827; background: #ffffff; }
a { color: inherit; text-decoration: none; }

.container { width: min(1600px, 92%); margin: 0 auto; }

/* 顶部信息条 */
.topbar { width: 100%; background: #303030; color: #ffffff; }
.topbar-inner { height: 40px; display: flex; align-items: center; justify-content: space-between; font-size: 14px; }
.topbar-right { display: inline-flex; align-items: center; gap: 10px; }
.topbar-item { color: #ffffff; opacity: .9; display: inline-flex; align-items: center; gap: 6px; }
.topbar-icon { display: inline-block; font-size: 14px; opacity: 1; }
.topbar-sep { color: #ffffff; opacity: .35; }

/* Header（白色，置顶，左右布局） */
.site-header { position: sticky; top: 0; z-index: 50; background: #ffffff; border-bottom: 1px solid var(--border); box-shadow: 0 4px 14px rgba(0,0,0,.06); }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 10px 0; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; }
.logo-mark { width: 22px; height: 22px; display: grid; place-items: center; color: #10b981; }
.logo-text { letter-spacing: .4px; color: #111827; }
/* LOGO 图片尺寸适配头部高度 */
.logo img { height: 70px; max-height: 70px; width: auto; display: block; }

.site-nav { position: relative; display: flex; align-items: center; gap: 12px; flex-wrap: nowrap; }
.nav-toggle { display: none; background: #ffffff; color: #111827; border: 1px solid var(--border); border-radius: 10px; height: 38px; padding: 0 12px; cursor: pointer; }
.nav-list { display: flex; gap: 20px; list-style: none; margin: 0; padding: 0; }
.nav-list li { position: relative; }
.nav-list a { display: inline-block; padding: 8px 10px; color: #374151; border-radius: 8px; transition: all .2s ease; }
.nav-list a:hover { color: #111827; background: rgba(79,140,255,.10); }

/* 子菜单样式 */
.nav-list .has-sub { position: relative; }
.nav-list .has-sub > a::after { content: "▼"; display: inline-block; margin-left: 4px; font-size: 10px; transition: transform .2s ease; }
.nav-list .has-sub:hover > a::after { transform: rotate(180deg); }
.nav-list .sub-menu { position: absolute; top: 100%; left: 0; background: #ffffff; border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 8px 20px rgba(0,0,0,.08); list-style: none; margin: 0; padding: 10px 6px 6px; min-width: 160px; display: none; z-index: 1000; margin-top: 0; }
.nav-list .has-sub::after { content: ''; position: absolute; top: 100%; left: 0; right: 0; height: 4px; background: transparent; pointer-events: none; }
.nav-list .sub-menu li { margin: 0; }
.nav-list .sub-menu a { display: block; padding: 8px 12px; border-radius: 6px; color: #374151; white-space: nowrap; }
.nav-list .sub-menu a:hover { background: rgba(79,140,255,.10); color: #111827; }
.nav-list .has-sub:hover .sub-menu,
.nav-list .has-sub .sub-menu:hover { display: block; }

/* 语言选择 */
.lang-switch { position: relative; display: flex; align-items: center; margin-left: 12px; padding-bottom: 0; }
.lang-current { height: 32px; padding: 0 12px; border: 1px solid var(--border); background: #ffffff; color: #111827; border-radius: 8px; cursor: pointer; display: flex; align-items: center; gap: 6px; }
.lang-icon { font-size: 14px; line-height: 1; }
.lang-menu { position: absolute; right: 0; top: 100%; background: #ffffff; border: 1px solid var(--border); border-radius: 10px; box-shadow: 0 8px 20px rgba(0,0,0,.08); list-style: none; margin: 0; padding: 6px; display: none; min-width: 120px; z-index: 1000; }
.lang-menu li { margin: 0; }
.lang-menu a { display: block; padding: 8px 10px; border-radius: 6px; color: #374151; }
.lang-menu a:hover { background: rgba(79,140,255,.10); color: #111827; }
.lang-switch:hover .lang-menu, .lang-switch:focus-within .lang-menu { display: block; }

/* 轮播图（使用 <img>，便于后期以数据库替换 src） */
.slider { position: relative; width: 100%; overflow: hidden; background: #f3f4f6; }
.slider-track { display: flex; width: 100%; height: 100%; transition: transform .5s ease; }
.slide { position: relative; min-width: 100%; display: flex; align-items: center; justify-content: center; }
.slide img { width: 100%; height: auto; object-fit: contain; display: block; }

.slider-arrow { position: absolute; top: 50%; transform: translateY(-50%); width: 40px; height: 40px; border-radius: 999px; border: 1px solid rgba(0,0,0,.15); background: rgba(255,255,255,.9); color: #111827; cursor: pointer; display: grid; place-items: center; box-shadow: 0 2px 8px rgba(0,0,0,.12); opacity: .2; }
.slider-arrow:hover { background: #ffffff; opacity: .6; }
.slider-arrow.prev { left: 16px; }
.slider-arrow.next { right: 16px; }

.slider-dots { position: absolute; left: 50%; transform: translateX(-50%); bottom: 14px; display: flex; gap: 8px; }
.dot { width: 8px; height: 8px; border-radius: 999px; background: rgba(255,255,255,.6); border: 1px solid rgba(0,0,0,.15); cursor: pointer; }
.dot[aria-selected="true"] { background: #ffffff; }

@media (max-width: 720px) {
  /* 手机端隐藏顶部栏右侧的邮箱和电话 */
  .topbar-right { display: none; }
  /* 手机端LOGO高度调整为40px */
  .logo img { height: 40px; max-height: 40px; }
  .nav-toggle { display: inline-flex; align-items: center; }
  .nav-list { position: absolute; top: 52px; right: 0; flex-direction: column; background: #ffffff; border: 1px solid var(--border); border-radius: 12px; padding: 8px; width: 180px; display: none; box-shadow: 0 8px 20px rgba(0,0,0,.08); }
  .nav-list.open { display: flex; }
  .nav-list li { width: 100%; }
  .nav-list a { width: 100%; padding: 10px 12px; }
  /* 移动端子菜单样式 */
  .nav-list .sub-menu { position: static; display: none; margin-top: 4px; margin-left: 12px; border: none; box-shadow: none; padding: 4px 0; }
  .nav-list .has-sub:hover .sub-menu,
  .nav-list .has-sub:focus-within .sub-menu { display: block; }
  .lang-switch { margin-left: 8px; }
}


/* 产品中心分区 */
.product-section { background: #f5f5f5; }
.product-inner { padding: 60px 0; text-align: center; }
.product-title { margin: 0; font-size: 28px; font-weight: 700; color: #111827; }
.product-subtitle { margin: 10px 0 0; font-size: 16px; color: #111827; text-align: center; position: relative; display: flex; align-items: center; justify-content: center; gap: 15px; }
.product-subtitle::before, .product-subtitle::after { content: ''; width: 50px; height: 1px; background: #111827; flex-shrink: 0; }

.product-cats { margin: 28px 0 32px; padding: 0; list-style: none; display: flex; justify-content: center; align-items: center; gap: 16px; flex-wrap: nowrap; overflow-x: auto; -webkit-overflow-scrolling: touch; }
.product-cats li { flex: 0 0 auto; }
.product-cat { display: inline-block; padding: 8px 14px; background: #ffffff; border: 1px solid var(--border); border-radius: 999px; color: #374151; white-space: nowrap; }
.product-cat:hover { background: #ffffff; border-color: #c7cdd6; color: #111827; }

/* 产品网格 */
.product-grid { margin: 24px auto 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.product-card { background: #ffffff; border: none; border-radius: 0; overflow: hidden; }
.product-media { display: block; position: relative; aspect-ratio: 4 / 3; background: #f3f4f6; }
.product-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.product-name { margin: 0; padding: 16px 14px; min-height: 56px; font-size: 16px; color: #111827; font-weight: 600; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.product-name::after { content: ">"; display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 50%; border: 1px solid currentColor; font-weight: 700; line-height: 1; font-size: 16px; }
.product-card:hover .product-name { color: #ffffff; }

.product-card:hover { background: #e40000; border-color: #e40000; }
.product-card:hover .product-name { color: #ffffff; }

@media (max-width: 960px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .product-cats { flex-wrap: wrap; gap: 12px; justify-content: center; overflow-x: visible; }
  .product-cats li { flex: 0 0 calc(50% - 12px); }
  .product-cat { width: 100%; text-align: center; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .product-name { justify-content: center; text-align: center; }
  .product-name::after { display: none; }
}

/* 关于我们分区（背景 ../img/gsb.jpg，上方右侧，不重复） */
.about-section { background-image: url('../img/gsa.jpg'), url('../img/gsb.jpg'); background-position: bottom left, top right; background-repeat: no-repeat, no-repeat; background-color: #ffffff; }
.about-inner { padding: 60px 0; }
.about-title { margin: 0; font-size: 28px; font-weight: 700; color: #ffffff; text-align: left; }
.about-content { margin-top: 50px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.about-video { position: relative; background: rgba(0,0,0,.15); border-radius: 8px; overflow: hidden; }
.about-video video { width: 100%; height: auto; display: block; aspect-ratio: 16 / 9; background: #000; }
.about-text { color: #303030; font-size: 16px; line-height: 1.8; margin-left: 40px; margin-top: 40px; }
.about-company-name { margin: 0 0 10px; font-size: 24px; font-weight: 700; color: #303030; }
.about-cta { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; padding: 8px 16px; background: #e40000; color: #ffffff; border-radius: 999px; text-decoration: none; font-weight: 400; }
.about-cta .plus { font-weight: 400; }
.about-cta:hover { filter: brightness(1.05); }

.about-fullbox { margin-top: 16px; width: 60%; margin-left: auto; height: 100px; background: transparent; }

.about-stats { height: 100%; width: 100%; display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; height: 100%; }
.stat-label { margin-top: 6px; font-size: 16px; font-weight: 700; color: #303030; }
.stat-item:nth-child(1),
.stat-item:nth-child(2),
.stat-item:nth-child(3),
.stat-item:nth-child(4) { background: transparent; }
.stat-num { font-size: 40px; font-weight: 800; color: #000000; display: inline-flex; align-items: baseline; gap: 4px; }
.stat-num .unit { position: static; font-size: 16px; font-weight: 700; color: #000000; line-height: 1; }

@media (max-width: 960px) {
  .about-fullbox { width: 100%; margin-left: 0; }
}

@media (max-width: 960px) {
  .about-content { grid-template-columns: 1fr; }
  .about-title { color: #000000; }
  .about-text { margin-left: 0; color: #ffffff; }
  .about-company-name { color: #ffffff; }
  .stat-num { font-size: 34px; color: #ffffff; }
  .stat-num .unit { font-size: 14px; color: #ffffff; }
  .stat-label { font-size: 14px; color: #ffffff; }
  .about-stats { grid-template-columns: repeat(2, 1fr); grid-template-rows: repeat(2, 1fr); }
}
.about-subtitle { margin: 10px 0 0; font-size: 16px; color: #6b7280; text-align: left; }
.about-desc { margin: 14px 0 0; font-size: 14px; color: #4b5563; max-width: 760px; }

/* 生产设备分区 */
.equip-section { background: #f5f5f5; }
.equip-inner { padding: 60px 0; }
.equip-title { margin: 0; font-size: 28px; font-weight: 700; color: #111827; text-align: center; }
.equip-subtitle { margin: 10px 0 0; font-size: 16px; color: #111827; text-align: center; position: relative; display: flex; align-items: center; justify-content: center; gap: 15px; }
.equip-subtitle::before, .equip-subtitle::after { content: ''; width: 50px; height: 1px; background: #111827; flex-shrink: 0; }

/* 滚动容器包装 */
.equip-scroller-wrapper { margin-top: 40px; overflow: hidden; position: relative; width: 100%; }

/* 滚动轨道 */
.equip-scroller { display: flex; gap: 16px; animation: equip-scroll 30s linear infinite; }
.equip-scroller:hover { animation-play-state: paused; }

/* 滚动动画 - 从右向左 */
@keyframes equip-scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(calc(-50% - 8px)); }
}

/* 设备卡片 - 确保可见区域显示4个 */
.equip-card { flex: 0 0 calc((100% - 48px) / 4); width: calc((100% - 48px) / 4); background: #ffffff; border: 1px solid var(--border); border-radius: 0; overflow: hidden; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1); transition: transform .3s ease, box-shadow .3s ease; }
.equip-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15); }
.equip-media { display: block; position: relative; aspect-ratio: 4 / 3; background: #f3f4f6; cursor: pointer; }
.equip-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.equip-card:hover .equip-media img { transform: scale(1.05); }
.equip-name { margin: 10px 12px 12px; font-size: 16px; font-weight: 600; color: #111827; text-align: center; height: 40px; display: flex; align-items: center; justify-content: center; }

@media (max-width: 960px) {
  .equip-inner { padding: 44px 0; }
  /* 移动端：卡片宽度 */
  .equip-card { width: 60%; min-width: 200px; }
  .equip-scroller { animation-duration: 25s; }
}

/* 应用领域分区 */
.application-section { background: url('../img/yyly.jpg') center/cover no-repeat; position: relative; overflow: visible; height: 700px; }
.application-inner { padding: 80px 0 40px; text-align: center; color: #ffffff; position: relative; z-index: 10; width: 100%; max-width: none; pointer-events: none; height: 100%; }
.application-title { margin: -20px 0 0; font-size: 28px; font-weight: 700; letter-spacing: .5px; text-transform: uppercase; pointer-events: auto; position: relative; z-index: 11; color: #ffffff; }
.application-subtitle { margin: 18px auto 40px; max-width: 860px; font-size: 18px; line-height: 1.6; color: #ffffff; pointer-events: auto; position: relative; z-index: 11; text-align: center; display: flex; align-items: center; justify-content: center; gap: 15px; }
.application-subtitle::before, .application-subtitle::after { content: ''; width: 50px; height: 1px; background: #ffffff; flex-shrink: 0; }

/* 应用领域新层 - 五列渐变背景 */
.application-overlay-layer { position: absolute; top: 0; left: 0; width: 100%; height: 100%; display: grid; grid-template-columns: repeat(5, 1fr); z-index: 4; }
.application-overlay-col { height: 100%; background: linear-gradient(to right, rgba(0,0,0,0.45) 0%, rgba(0,0,0,0.6) 100%); transition: background .3s ease; cursor: pointer; display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; text-align: center; padding: 100px 0 20px; box-sizing: border-box; }
.application-overlay-col:hover { background: transparent; }
.application-overlay-col .application-image { margin: 200px auto 20px; display: flex; align-items: center; justify-content: center; }
.application-overlay-col .application-image img { width: 80%; max-width: 120px; height: auto; display: block; transition: opacity .3s ease; }
.application-overlay-col:hover .application-image img { opacity: 0; }
.application-overlay-col .application-title-layer { width: 100%; background: rgba(255,255,255,0); padding: 20px 0 10px; box-sizing: border-box; margin: 0; transition: background .3s ease; }
.application-overlay-col:hover .application-title-layer { background: rgba(255,255,255,0.8); }
.application-overlay-col .application-name-cn { margin: 0 0 10px; font-size: 20px; font-weight: 700; color: #ffffff; transition: color .3s ease; }
.application-overlay-col:hover .application-name-cn { color: #111827; }
.application-overlay-col .application-name-en { margin: 0 0 10px; font-size: 14px; color: rgba(255,255,255,.9); letter-spacing: 1px; text-transform: uppercase; transition: color .3s ease; }
.application-overlay-col:hover .application-name-en { color: #111827; }
.application-overlay-col .application-description { margin: 0; padding: 30px 40px; font-size: 15px; line-height: 1.6; color: #111827; opacity: 0; max-height: 0; overflow: hidden; transition: opacity .3s ease, max-height .3s ease; }
.application-overlay-col:hover .application-description { opacity: 1; max-height: 300px; }

/* 应用领域网格 */
.application-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; margin-top: 50px; position: relative; z-index: 12; }
.application-item { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; width: 100%; }
.application-image { margin: 0 auto 20px; display: flex; align-items: center; justify-content: center; }
.application-image img { width: 80%; max-width: 120px; height: auto; display: block; }
.application-title-layer { width: 100%; background: rgba(255,255,255,0.8); padding: 10px 0; box-sizing: border-box; margin: 0; }
.application-name-cn { margin: 0 0 10px; font-size: 20px; font-weight: 700; color: #111827; }
.application-name-en { margin: 0; font-size: 14px; color: #111827; letter-spacing: 1px; text-transform: uppercase; }


@media (max-width: 960px) {
  .application-inner { padding: 60px 0; }
  .application-subtitle { font-size: 16px; margin: 16px auto 32px; padding: 0 20px; }
  .application-overlay-layer { grid-template-columns: repeat(3, 1fr); }
  .application-overlay-col { padding-top: 150px; }
  .application-overlay-col .application-image img { width: 90%; }
  .application-overlay-col .application-image { margin: 0 auto 20px; }
  .application-overlay-col:nth-child(4) { grid-column: 1 / 2; }
  .application-overlay-col:nth-child(5) { grid-column: 2 / 3; }
}

@media (max-width: 640px) {
  .application-section { height: 550px; }
  .application-overlay-layer { 
    display: flex; 
    overflow-x: auto; 
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x mandatory;
    grid-template-columns: none;
  }
  .application-overlay-col { 
    padding-top: 200px; 
    width: 50%; 
    min-width: 50%;
    flex-shrink: 0;
    scroll-snap-align: start;
  }
  .application-overlay-col .application-image img { width: 90%; }
  .application-overlay-col .application-image { margin: 0 auto 20px; }
  .application-overlay-col .application-title-layer { padding-top: 10px; }
  .application-overlay-col .application-name-cn { font-size: 16px; }
  .application-overlay-col .application-name-en { font-size: 12px; }
  .application-overlay-col .application-description { padding: 10px; font-size: 13px; }
  .application-overlay-col:nth-child(4) { grid-column: auto; }
  .application-overlay-col:nth-child(5) { grid-column: auto; }
}

/* 新闻资讯分区 */
.news-section { background: #f5f5f5; padding: 80px 0; }
.news-inner { text-align: center; margin-bottom: 50px; }
.news-title { margin: 0 0 15px; font-size: 28px; font-weight: 700; color: #111827; }
.news-subtitle { margin: 0; font-size: 16px; color: #111827; text-align: center; position: relative; display: flex; align-items: center; justify-content: center; gap: 15px; }
.news-subtitle::before, .news-subtitle::after { content: ''; width: 50px; height: 1px; background: #111827; flex-shrink: 0; }
.news-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; }
.news-card { background: #ffffff; border: 1px solid #e5e7eb; padding: 25px; transition: border-color .3s ease; display: flex; flex-direction: column; text-decoration: none; color: inherit; }
.news-card:hover { border-color: #dc2626; text-decoration: none; }
.news-date { font-size: 32px; font-weight: 700; color: #111827; margin-bottom: 5px; transition: color .3s ease; }
.news-card:hover .news-date { color: #dc2626; }
.news-year-month { font-size: 14px; color: #6b7280; margin-bottom: 15px; }
.news-card-title { margin: 0 0 20px; font-size: 18px; font-weight: 600; color: #111827; transition: color .3s ease; }
.news-card:hover .news-card-title { color: #dc2626; }
.news-image { margin: 0 0 20px; width: 100%; }
.news-image img { width: 100%; height: auto; display: block; }
.news-description { margin: 0; font-size: 14px; line-height: 1.6; color: #6b7280; }

@media (max-width: 640px) {
  .news-cards { grid-template-columns: 1fr; }
  .news-card { width: 100%; }
}

/* 公司发展分区 */
.development-section { background: #f5f5f5; margin-top: 0; min-height: 600px; }
.development-inner { padding: 10px 0 80px; min-height: 600px; }
.development-title { margin: 0; font-size: 28px; font-weight: 700; color: #111827; text-align: center; }
.development-subtitle { margin: 10px 0 0; font-size: 16px; color: #111827; text-align: center; position: relative; display: flex; align-items: center; justify-content: center; gap: 15px; }
.development-subtitle::before, .development-subtitle::after { content: ''; width: 50px; height: 1px; background: #111827; flex-shrink: 0; }

/* 时间轴容器 */
.dev-timeline { position: relative; margin-top: 0; }
.dev-timeline-wrapper { overflow: hidden; position: relative; min-height: 500px; }
.dev-timeline-track { display: flex; align-items: flex-start; justify-content: center; gap: 0; padding: 20px 0 60px; position: relative; width: 100%; min-height: 500px; height: auto; }

/* 时间轴连接线 */
.dev-timeline-track::before { content: ''; position: absolute; top: 80px; left: 0; right: 0; height: 2px; background: #e5e7eb; z-index: 1; }

/* 时间轴项目 - 默认隐藏 */
.dev-timeline-item { display: none; position: relative; opacity: 0.3; transform: scale(0.8); transition: all .4s ease; z-index: 2; }
/* 显示三个年份：prev、active、next */
.dev-timeline-item.prev,
.dev-timeline-item.active,
.dev-timeline-item.next { display: block; }
/* 使用order确保顺序：prev在左，active在中，next在右，确保激活项居中 */
.dev-timeline-item.prev { order: 1; opacity: 0.6; transform: scale(0.85); flex: 0 0 30%; min-height: 500px; }
.dev-timeline-item.active { order: 2; opacity: 1; transform: scale(1); z-index: 3; flex: 0 0 40%; min-height: 500px; }
.dev-timeline-item.next { order: 3; opacity: 0.6; transform: scale(0.85); flex: 0 0 30%; min-height: 500px; }

/* 时间轴圆点 */
.dev-timeline-dot { width: 16px; height: 16px; border-radius: 50%; background: #ffffff; border: 3px solid #e5e7eb; position: absolute; top: 72px; left: 50%; transform: translateX(-50%); z-index: 4; transition: all .4s ease; }
.dev-timeline-item.active .dev-timeline-dot { background: #e40000; border-color: #e40000; width: 20px; height: 20px; top: 70px; }

/* 年份显示 */
.dev-timeline-year { font-size: 24px; font-weight: 700; color: #6b7280; text-align: center; margin-bottom: 24px; transition: all .4s ease; min-height: 36px; display: flex; align-items: center; justify-content: center; }
.dev-timeline-item.active .dev-timeline-year { color: #e40000; font-size: 36px; min-height: 36px; }
.dev-timeline-item.prev .dev-timeline-year,
.dev-timeline-item.next .dev-timeline-year { font-size: 20px; min-height: 36px; }

/* 时间轴内容 */
.dev-timeline-content { background: #ffffff; border-radius: 12px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,.08); transition: all .4s ease; min-height: 400px; }
.dev-timeline-item.active .dev-timeline-content { box-shadow: 0 8px 24px rgba(0,0,0,.15); }
.dev-timeline-item.prev .dev-timeline-content,
.dev-timeline-item.next .dev-timeline-content { box-shadow: 0 1px 4px rgba(0,0,0,.05); min-height: 400px; }
.dev-timeline-image { width: 100%; aspect-ratio: 16 / 9; overflow: hidden; }
.dev-timeline-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.dev-timeline-info { padding: 20px; min-height: 120px; }
.dev-timeline-title { margin: 0 0 10px; font-size: 18px; font-weight: 700; color: #111827; min-height: 28px; }
.dev-timeline-item.active .dev-timeline-title { font-size: 22px; min-height: 30px; }
.dev-timeline-text { margin: 0; font-size: 14px; color: #6b7280; line-height: 1.6; min-height: 45px; }
/* 非激活项显示文字 */
.dev-timeline-item.prev .dev-timeline-text,
.dev-timeline-item.next .dev-timeline-text { display: block; }
.dev-timeline-item.prev .dev-timeline-image,
.dev-timeline-item.next .dev-timeline-image { opacity: 0.5; }

/* 时间轴控制按钮 */
.dev-timeline-controls { display: grid; grid-template-columns: 30% 40% 30%; align-items: center; position: relative; margin-top: -100px; width: 100%; z-index: 10; }
.dev-timeline-btn { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--border); background: #ffffff; color: #111827; font-size: 24px; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all .2s ease; }
.dev-timeline-btn:hover { background: #e40000; color: #ffffff; border-color: #e40000; }
.dev-timeline-btn:disabled { opacity: .4; cursor: not-allowed; }
.dev-timeline-btn.dev-timeline-prev { grid-column: 1; justify-self: center; }
.dev-timeline-btn.dev-timeline-next { grid-column: 3; justify-self: center; }

@media (max-width: 960px) {
  .development-inner { padding: 44px 0; }
  .dev-timeline-track { gap: 0; padding: 20px 0 50px; }
  /* 移动端只显示激活年份 */
  .dev-timeline-item.prev,
  .dev-timeline-item.next { display: none !important; }
  .dev-timeline-item.active { flex: 0 0 100%; width: 100%; }
  .dev-timeline-track::before { width: calc(100% - 100px); }
  .dev-timeline-controls { margin-top: 16px; grid-template-columns: 1fr 1fr; gap: 20px; }
  .dev-timeline-btn.dev-timeline-prev { grid-column: 1; justify-self: flex-end; }
  .dev-timeline-btn.dev-timeline-next { grid-column: 2; justify-self: flex-start; }
  .dev-timeline-year { font-size: 20px; }
  .dev-timeline-item.active .dev-timeline-year { font-size: 28px; }
  .dev-timeline-dot { width: 14px; height: 14px; top: 74px; }
  .dev-timeline-item.active .dev-timeline-dot { width: 18px; height: 18px; top: 72px; }
}

/* 页尾样式 */
.site-footer { background-image: url('../img/fo.jpg'); background-position: center; background-repeat: no-repeat; background-size: cover; color: #ffffff; padding: 0; position: relative; }
.site-footer::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.6); z-index: 1; }
.footer-inner { position: relative; z-index: 2; }
.footer-content { display: flex; gap: 0; margin-bottom: 0; align-items: stretch; }
.footer-left { flex: 1; display: flex; flex-direction: column; padding: 40px 0; }
.footer-left-top { display: flex; align-items: center; justify-content: flex-start; margin-bottom: 20px; }
.footer-logo-area { display: flex; align-items: center; }
.footer-logo img { height: 60px; max-height: 60px; display: block; filter: brightness(0) invert(1); }
.footer-nav { display: flex; align-items: center; margin-left: 30px; }
.footer-nav-list { display: flex; list-style: none; margin: 0; padding: 0; gap: 30px; }
.footer-nav-list li { margin: 0; }
.footer-nav-list a { color: rgba(255, 255, 255, 0.9); font-size: 16px; transition: color .3s ease; }
.footer-nav-list a:hover { color: #ffffff; }
.footer-left-divider { width: 100%; height: 1px; background: #ffffff; margin: 0 0 30px 0; }
.footer-left-bottom { display: grid; grid-template-columns: 1fr auto 1fr; gap: 40px; column-gap: 60px; align-items: start; }
.footer-company-info { display: flex; flex-direction: column; }
.footer-company-name { margin: 0 0 20px; font-size: 20px; font-weight: 700; color: #ffffff; }
.footer-company-details { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-company-details li { margin: 0; color: rgba(255, 255, 255, 0.9); font-size: 14px; }
.detail-item { position: relative; padding-left: 24px; display: flex; align-items: center; }
.detail-item::before { content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%); width: 16px; height: 16px; display: flex; align-items: center; justify-content: center; font-size: 14px; line-height: 1; color: #ffffff; }
.detail-address::before { content: '📍'; filter: grayscale(100%) brightness(0) invert(1); }
.detail-phone::before { content: '📱'; filter: grayscale(100%) brightness(0) invert(1); }
.detail-tel::before { content: '📞'; filter: grayscale(100%) brightness(0) invert(1); }
.detail-fax::before { content: '📠'; filter: grayscale(100%) brightness(0) invert(1); }
.detail-email::before { content: '✉️'; filter: grayscale(100%) brightness(0) invert(1); }
.detail-website::before { content: '🌐'; filter: grayscale(100%) brightness(0) invert(1); }
.footer-qrcode { display: flex; align-items: center; justify-content: center; gap: 15px; }
.qrcode-placeholder { width: 120px; height: 120px; background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.3); display: flex; align-items: center; justify-content: center; color: rgba(255, 255, 255, 0.7); font-size: 14px; }
.qrcode-img { width: 120px; height: 120px; object-fit: cover; display: block; }
.footer-products { display: flex; flex-direction: column; }
.footer-products-title { margin: 0 0 20px; font-size: 20px; font-weight: 700; color: #ffffff; }
.footer-products-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-products-list li { margin: 0; }
.footer-products-list a { color: rgba(255, 255, 255, 0.9); font-size: 14px; transition: color .3s ease; }
.footer-products-list a:hover { color: #ffffff; }
.footer-right { width: 400px; flex-shrink: 0; background: #c10a0b; padding: 40px; }
.footer-contact-title { margin: 0 0 30px; font-size: 24px; font-weight: 700; color: #ffffff; }
.footer-contact-form { display: flex; flex-direction: column; gap: 20px; }
.form-group { display: flex; flex-direction: column; }
.form-group input { width: 100%; padding: 12px 0; background: #c10a0b; border: none; border-bottom: 1px solid #ffffff; color: #ffffff; font-size: 14px; outline: none; }
.form-group input::placeholder { color: rgba(255, 255, 255, 0.7); }
.form-group input:focus { border-bottom-color: #ffffff; }
.form-submit-btn { width: 100%; padding: 12px 30px; background: #641919; color: #ffffff; border: none; border-radius: 4px; font-size: 16px; font-weight: 600; cursor: pointer; transition: background .3s ease; margin-top: 10px; }
.form-submit-btn:hover { background: #7a1f1f; }
.footer-col { display: flex; flex-direction: column; }
.footer-title { margin: 0 0 20px; font-size: 20px; font-weight: 700; color: #ffffff; }
.footer-text { margin: 0; font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, 0.9); }
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-links li { margin: 0; }
.footer-links a { color: rgba(255, 255, 255, 0.9); font-size: 14px; transition: color .3s ease; }
.footer-links a:hover { color: #ffffff; }
.footer-contact { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { margin: 0; color: rgba(255, 255, 255, 0.9); font-size: 14px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.2); padding-top: 20px; padding-bottom: 20px; text-align: center; }
.footer-copyright { margin: 0; font-size: 14px; color: rgba(255, 255, 255, 0.8); }

@media (max-width: 960px) {
  .footer-content { flex-direction: column; }
  .footer-left-top { flex-direction: row; align-items: center; gap: 0; margin-bottom: 20px; }
  .footer-nav { margin-left: 30px; }
  .footer-nav-list { flex-wrap: wrap; gap: 15px; }
  .footer-left-bottom { grid-template-columns: 1fr; gap: 30px; }
  .footer-qrcode { justify-content: flex-start; }
  .footer-right { width: 100%; }
}

@media (max-width: 640px) {
  .site-footer { padding: 0; }
  .footer-content { flex-direction: column; }
  .footer-left { padding: 30px 20px; }
  .footer-left-top { flex-direction: row; align-items: center; gap: 0; margin-bottom: 20px; }
  .footer-logo img { height: 50px; }
  .footer-nav { margin-left: 20px; }
  .footer-nav-list { flex-wrap: wrap; gap: 12px; }
  .footer-left-divider { margin: 20px 0; }
  .footer-left-bottom { grid-template-columns: 1fr; gap: 25px; }
  .footer-company-name { font-size: 18px; }
  .footer-company-details li { font-size: 13px; }
  .footer-products-title { font-size: 18px; }
  .footer-products-list a { font-size: 13px; }
  .footer-right { width: 100%; padding: 30px 20px; }
  .footer-contact-title { font-size: 20px; }
  .footer-qrcode { flex-wrap: wrap; gap: 10px; }
  .qrcode-img { width: 100px; height: 100px; }
}

/* 栏目页面样式 */
.page-banner { width: 100%; height: 300px; background: #c10a0b url('../img/nfo.jpg') center/cover no-repeat; position: relative; }
.page-banner::before { content: ''; position: absolute; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.4); z-index: 1; }
.page-banner .container { position: relative; z-index: 2; height: 100%; display: flex; align-items: center; }
.page-banner-title { margin: 0; font-size: 28px; font-weight: 700; color: #ffffff; }
.page-content { padding: 60px 0; min-height: 60vh; background: #f5f5f5; }
.page-header { margin-bottom: 40px; padding-bottom: 20px; border-bottom: 2px solid #e5e7eb; }
.page-title { margin: 0 0 20px; font-size: 32px; font-weight: 700; color: #111827; }
.page-breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 14px; color: #6b7280; }
.page-breadcrumb a { color: #6b7280; text-decoration: none; transition: color .3s ease; }
.page-breadcrumb a:hover { color: #111827; }
.breadcrumb-sep { color: #9ca3af; }
.breadcrumb-current { color: #111827; }
.page-body { background: #ffffff; padding: 40px; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.page-text { line-height: 1.8; color: #374151; }
.page-text p { margin: 0 0 20px; font-size: 16px; }
.page-text p:last-child { margin-bottom: 0; }

@media (max-width: 640px) {
  .page-banner { height: 200px; }
  .page-banner-title { font-size: 22px; }
  .page-content { padding: 40px 0; }
  .page-title { font-size: 24px; }
  .page-body { padding: 30px 20px; }
  .page-text p { font-size: 14px; }
}

/* 产品列表页样式 */
.product-layout { display: grid; grid-template-columns: 250px 1fr; gap: 40px; margin-top: 40px; }
.product-sidebar { position: sticky; top: 100px; align-self: start; }
.product-category-box { background: #ffffff; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08); padding: 20px; }
.product-category-title { margin: 0 0 20px; font-size: 20px; font-weight: 700; color: #111827; padding-bottom: 15px; border-bottom: 2px solid #c10a0b; }
.product-category-list { list-style: none; margin: 0; padding: 0; }
.product-category-list li { margin: 0; }
.product-category-list a { display: block; padding: 12px 15px; color: #374151; text-decoration: none; border-radius: 4px; transition: all .3s ease; font-size: 14px; }
.product-category-list a:hover { background: #f3f4f6; color: #111827; }
.product-category-list a.active { background: #c10a0b; color: #ffffff; font-weight: 600; }
.product-main { display: flex; flex-direction: column; }
.product-list-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 30px; }
.product-list-item { background: #ffffff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,.08); transition: transform .3s ease, box-shadow .3s ease; }
.product-list-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.product-list-link { display: block; text-decoration: none; color: inherit; }
.product-list-image { width: 100%; aspect-ratio: 4 / 3; overflow: hidden; background: #f3f4f6; }
.product-list-image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.product-list-item:hover .product-list-image img { transform: scale(1.05); }
.product-list-name { margin: 20px 20px 10px; font-size: 20px; font-weight: 700; color: #111827; }
.product-list-desc { margin: 0 20px 20px; font-size: 14px; line-height: 1.6; color: #6b7280; }

@media (max-width: 960px) {
  .product-layout { grid-template-columns: 200px 1fr; gap: 30px; }
  .product-list-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

@media (max-width: 640px) {
  .product-layout { grid-template-columns: 1fr; gap: 30px; }
  .product-sidebar { position: static; }
  .product-list-grid { grid-template-columns: 1fr; gap: 20px; }
}

/* 产品列表分页样式 */
.product-pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 50px; padding-top: 30px; border-top: 1px solid #e5e7eb; }
.pagination-item { display: inline-flex; align-items: center; justify-content: center; min-width: 40px; height: 40px; padding: 0 12px; border: 1px solid #e5e7eb; border-radius: 4px; background: #ffffff; color: #374151; text-decoration: none; font-size: 14px; transition: all .3s ease; }
.pagination-item:hover { border-color: #c10a0b; color: #c10a0b; background: #fef2f2; }
.pagination-item.active { background: #c10a0b; border-color: #c10a0b; color: #ffffff; }
.pagination-item.active:hover { background: #a00809; border-color: #a00809; color: #ffffff; }
.pagination-prev, .pagination-next { font-weight: 600; }
.pagination-ellipsis { border: none; background: transparent; color: #9ca3af; cursor: default; }
.pagination-ellipsis:hover { border: none; background: transparent; color: #9ca3af; }

@media (max-width: 640px) {
  .product-pagination { flex-wrap: wrap; gap: 6px; }
  .pagination-item { min-width: 36px; height: 36px; padding: 0 10px; font-size: 13px; }
  .pagination-ellipsis { display: none; }
}

/* 产品详情页样式 */
.product-details { margin-top: 40px; }
.product-details-main { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.product-details-image { width: 100%; display: flex; flex-direction: column; gap: 16px; }
.product-image-main { width: 100%; position: relative; background: #f9fafb; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.product-image-main img { width: 100%; height: auto; display: block; transition: opacity 0.3s ease; }
.product-image-thumbs { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.product-thumb-item { width: 80px; height: 80px; border: 2px solid #e5e7eb; border-radius: 6px; overflow: hidden; cursor: pointer; transition: all 0.3s ease; background: #ffffff; flex-shrink: 0; }
.product-thumb-item:hover:not(.active) { border-color: #c10a0b; transform: translateY(-2px); box-shadow: 0 4px 12px rgba(193, 10, 11, 0.2); }
.product-thumb-item.active { border-color: #c10a0b !important; box-shadow: 0 0 0 2px rgba(193, 10, 11, 0.1) !important; transform: none !important; }
.product-thumb-item img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.3s ease; }
.product-thumb-item:hover img { transform: scale(1.05); }
.product-details-info { display: flex; flex-direction: column; }
.product-details-title { margin: 0 0 20px; font-size: 32px; font-weight: 700; color: #111827; }
.product-details-meta { display: flex; flex-direction: column; gap: 10px; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid #e5e7eb; }
.product-meta-item { font-size: 14px; color: #6b7280; }
.product-details-content { line-height: 1.8; color: #374151; }
.product-details-content h3 { margin: 30px 0 15px; font-size: 22px; font-weight: 700; color: #111827; }
.product-details-content h3:first-child { margin-top: 0; }
.product-details-content p { margin: 0 0 15px; font-size: 16px; }
.product-details-content ul { margin: 15px 0; padding-left: 20px; }
.product-details-content li { margin: 8px 0; font-size: 16px; }
.product-spec-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.product-spec-table tr { border-bottom: 1px solid #e5e7eb; }
.product-spec-table td { padding: 12px 0; font-size: 16px; }
.product-spec-table td:first-child { width: 120px; font-weight: 600; color: #111827; }
.product-spec-table td:last-child { color: #6b7280; }
.product-details-section { padding-top: 40px; margin-top: 40px; border-top: 1px solid #e5e7eb; }
.product-details-section-title { margin: 0; font-size: 28px; font-weight: 700; color: #111827; }
/* 产品咨询热线样式 */
.product-contact-hotline { margin-top: 30px; padding: 28px; background: linear-gradient(135deg, #c10a0b 0%, #e40000 100%); border-radius: 12px; box-shadow: 0 4px 16px rgba(193, 10, 11, 0.2); display: flex; align-items: center; gap: 20px; transition: transform 0.3s ease, box-shadow 0.3s ease; }
.product-contact-hotline:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(193, 10, 11, 0.3); }
.hotline-icon-wrapper { width: 60px; height: 60px; background: rgba(255, 255, 255, 0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.hotline-icon { font-size: 32px; line-height: 1; filter: brightness(0) invert(1); }
.hotline-content { flex: 1; display: flex; flex-direction: column; gap: 8px; }
.hotline-label { color: rgba(255, 255, 255, 0.9); font-size: 14px; font-weight: 500; }
.hotline-phone { color: #ffffff; font-size: 28px; font-weight: 700; text-decoration: none; letter-spacing: 1px; transition: all 0.3s ease; display: inline-block; }
.hotline-phone:hover { color: #ffeb3b; transform: scale(1.05); text-shadow: 0 2px 8px rgba(255, 235, 59, 0.4); }

@media (max-width: 960px) {
  .product-details-main { grid-template-columns: 1fr; gap: 30px; }
  .product-details-image { order: 1; }
  .product-details-info { order: 2; }
}

@media (max-width: 640px) {
  .product-details-title { font-size: 24px; }
  .product-details-content h3 { font-size: 20px; }
  .product-details-content p, .product-details-content li { font-size: 14px; }
  .product-details-section-title { font-size: 24px; }
  .product-image-thumbs { gap: 8px; }
  .product-thumb-item { width: 60px; height: 60px; }
  .product-contact-hotline { margin-top: 24px; padding: 20px; gap: 16px; flex-direction: row; }
  .hotline-icon-wrapper { width: 50px; height: 50px; }
  .hotline-icon { font-size: 26px; }
  .hotline-label { font-size: 13px; }
  .hotline-phone { font-size: 22px; letter-spacing: 0.5px; }
}

/* 生产设备详情页 */
.equip-details-page { margin-top: 40px; padding: 40px 0; }
.equip-details-container { position: relative; max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: center; gap: 30px; }
.equip-details-content { flex: 1; max-width: 900px; text-align: center; }
.equip-details-image-wrapper { width: 100%; margin-bottom: 30px; background: #ffffff; border-radius: 12px; padding: 20px; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1); }
.equip-details-image-wrapper img { width: 100%; height: auto; max-height: 70vh; object-fit: contain; display: block; border-radius: 8px; }
.equip-details-title { margin: 0; font-size: 36px; font-weight: 700; color: #111827; }
.equip-nav-btn { width: 60px; height: 60px; border: none; background: #ffffff; color: #111827; font-size: 40px; line-height: 1; border-radius: 50%; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15); transition: all .3s ease; flex-shrink: 0; }
.equip-nav-btn:hover { background: #c10a0b; color: #ffffff; transform: scale(1.1); }
.equip-nav-btn:active { transform: scale(0.95); }

@media (max-width: 768px) {
  .equip-details-container { flex-direction: column; gap: 20px; }
  .equip-nav-btn { width: 50px; height: 50px; font-size: 32px; position: absolute; top: 50%; transform: translateY(-50%); }
  .equip-nav-prev { left: 10px; }
  .equip-nav-next { right: 10px; }
  .equip-details-content { width: 100%; padding: 0 60px; }
  .equip-details-image-wrapper { padding: 15px; }
  .equip-details-image-wrapper img { max-height: 50vh; }
  .equip-details-title { font-size: 24px; }
}

@media (max-width: 480px) {
  .equip-nav-btn { width: 44px; height: 44px; font-size: 28px; }
  .equip-nav-prev { left: 5px; }
  .equip-nav-next { right: 5px; }
  .equip-details-content { padding: 0 50px; }
  .equip-details-title { font-size: 20px; }
}

/* 返回顶部按钮 */
.back-to-top { position: fixed; bottom: 30px; right: 30px; width: 50px; height: 50px; border: none; border-radius: 50%; background: #c10a0b; color: #ffffff; font-size: 24px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2); transition: all .3s ease; z-index: 1000; opacity: 0; visibility: hidden; transform: translateY(20px); }
.back-to-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: #a00809; transform: translateY(-3px); box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3); }
.back-to-top:active { transform: translateY(0); }
.back-to-top-icon { display: block; font-weight: 700; }

@media (max-width: 768px) {
  .back-to-top { bottom: 20px; right: 20px; width: 44px; height: 44px; font-size: 20px; }
}

@media (max-width: 480px) {
  .back-to-top { bottom: 15px; right: 15px; width: 40px; height: 40px; font-size: 18px; }
}

/* 新闻页面布局样式 */
.article-layout { display: grid; grid-template-columns: 250px 1fr; gap: 40px; margin-top: 40px; }
.article-sidebar { position: sticky; top: 100px; align-self: start; }
.article-category-box { background: #ffffff; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08); padding: 20px; }
.article-category-title { margin: 0 0 20px; font-size: 20px; font-weight: 700; color: #111827; padding-bottom: 15px; border-bottom: 2px solid #c10a0b; }
.article-category-list { list-style: none; margin: 0; padding: 0; }
.article-category-list li { margin: 0; }
.article-category-list a { display: block; padding: 12px 15px; color: #374151; text-decoration: none; border-radius: 4px; transition: all .3s ease; font-size: 14px; }
.article-category-list a:hover { background: #f3f4f6; color: #111827; }
.article-category-list a.active { background: #c10a0b; color: #ffffff; font-weight: 600; }

/* 新闻列表样式 */
.article-list { display: flex; flex-direction: column; gap: 30px; }
.article-pagination { display: flex; justify-content: center; align-items: center; gap: 8px; margin-top: 50px; padding-top: 30px; border-top: 1px solid #e5e7eb; }
.article-item { background: #ffffff; border-radius: 8px; overflow: hidden; box-shadow: 0 2px 8px rgba(0,0,0,.08); transition: box-shadow .3s ease; }
.article-item:hover { box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.article-link { display: grid; grid-template-columns: 200px 1fr; gap: 20px; text-decoration: none; color: inherit; }
.article-image { width: 200px; height: 150px; overflow: hidden; background: #f3f4f6; }
.article-image img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .3s ease; }
.article-item:hover .article-image img { transform: scale(1.05); }
.article-info { padding: 20px 20px 20px 0; display: flex; flex-direction: column; justify-content: space-between; }
.article-date { font-size: 14px; color: #9ca3af; margin-bottom: 10px; }
.article-title { margin: 0 0 15px; font-size: 22px; font-weight: 700; color: #111827; line-height: 1.4; }
.article-excerpt { margin: 0; font-size: 14px; line-height: 1.8; color: #6b7280; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* 新闻详情样式 */
.article-details { background: #ffffff; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08); padding: 40px; }
.article-details-title { margin: 0 0 20px; font-size: 32px; font-weight: 700; color: #111827; line-height: 1.4; }
.article-details-meta { display: flex; gap: 30px; margin-bottom: 30px; padding-bottom: 20px; border-bottom: 1px solid #e5e7eb; font-size: 14px; color: #6b7280; }
.article-meta-date, .article-meta-category { display: flex; align-items: center; }
.article-details-image { width: 100%; margin-bottom: 30px; border-radius: 8px; overflow: hidden; }
.article-details-image img { width: 100%; height: auto; display: block; }
.article-details-content { line-height: 1.8; color: #374151; font-size: 16px; }
.article-details-content p { margin: 0 0 20px; }
.article-details-content p:last-child { margin-bottom: 0; }

@media (max-width: 960px) {
  .article-layout { grid-template-columns: 200px 1fr; gap: 30px; }
  .article-link { grid-template-columns: 150px 1fr; gap: 15px; }
  .article-image { width: 150px; height: 120px; }
  .article-title { font-size: 20px; }
}

@media (max-width: 640px) {
  .article-layout { grid-template-columns: 1fr; gap: 30px; }
  .article-sidebar { position: static; }
  .article-link { grid-template-columns: 1fr; gap: 15px; }
  .article-image { width: 100%; height: 200px; }
  .article-info { padding: 20px; }
  .article-details { padding: 30px 20px; }
  .article-details-title { font-size: 24px; }
  .article-details-meta { flex-direction: column; gap: 10px; }
  .article-details-content { font-size: 14px; }
}

/* 联系我们页面样式 */
.contact-info-wrapper { margin-top: 40px; }
.contact-info { background: #ffffff; border-radius: 8px; box-shadow: 0 2px 8px rgba(0,0,0,.08); padding: 40px; max-width: 1000px; margin: 0 auto; }
.contact-info-title { margin: 0 0 40px; font-size: 28px; font-weight: 700; color: #111827; text-align: center; padding-bottom: 20px; border-bottom: 2px solid #c10a0b; }
.contact-info-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.contact-info-item { padding: 30px; background: #f9fafb; border-radius: 8px; transition: transform .3s ease, box-shadow .3s ease; }
.contact-info-item:hover { transform: translateY(-4px); box-shadow: 0 4px 12px rgba(0,0,0,.1); }
.contact-item-title { margin: 0 0 15px; font-size: 20px; font-weight: 700; color: #111827; }
.contact-item-content { margin: 0 0 8px; font-size: 16px; line-height: 1.8; color: #374151; }
.contact-item-content:last-child { margin-bottom: 0; }

@media (max-width: 960px) {
  .contact-info-grid { grid-template-columns: 1fr; gap: 30px; }
}

@media (max-width: 640px) {
  .contact-info { padding: 30px 20px; }
  .contact-info-title { font-size: 24px; }
  .contact-info-item { padding: 20px; }
  .contact-item-title { font-size: 18px; }
  .contact-item-content { font-size: 14px; }
}

/* 设备相册样式 */
.equipment-gallery { margin-top: 40px; }
.equipment-gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-bottom: 50px; }
.equipment-gallery-item { position: relative; overflow: hidden; border-radius: 8px; background: #ffffff; box-shadow: 0 2px 8px rgba(0,0,0,.08); transition: transform .3s ease, box-shadow .3s ease; }
.equipment-gallery-item:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0,0,0,.12); }
.equipment-gallery-link { display: block; text-decoration: none; color: inherit; position: relative; }
.equipment-gallery-image { width: 100%; aspect-ratio: 1 / 1; overflow: hidden; background: #ffffff; }
.equipment-gallery-image img { width: 100%; height: 100%; object-fit: contain; display: block; transition: transform .3s ease; }
.equipment-gallery-item:hover .equipment-gallery-image img { transform: scale(1.1); }
.equipment-gallery-overlay { position: absolute; bottom: 0; left: 0; right: 0; background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, rgba(0,0,0,0) 100%); padding: 20px; transform: translateY(100%); transition: transform .3s ease; }
.equipment-gallery-item:hover .equipment-gallery-overlay { transform: translateY(0); }
.equipment-gallery-title { margin: 0; font-size: 18px; font-weight: 700; color: #ffffff; }
.equipment-pagination { display: flex; justify-content: center; align-items: center; gap: 8px; padding-top: 30px; border-top: 1px solid #e5e7eb; }

@media (max-width: 1200px) {
  .equipment-gallery-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}

@media (max-width: 960px) {
  .equipment-gallery-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
}

@media (max-width: 640px) {
  .equipment-gallery-grid { grid-template-columns: 1fr; gap: 15px; }
  .equipment-gallery-title { font-size: 16px; }
}

/* 图片弹出层样式 */
.lightbox-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.95); z-index: 9999; display: none; align-items: center; justify-content: center; opacity: 0; transition: opacity 0.3s ease; }
.lightbox-overlay.active { display: flex; opacity: 1; }
.lightbox-container { position: relative; width: 90%; max-width: 1200px; max-height: 90vh; display: flex; align-items: center; justify-content: center; }
.lightbox-content { position: relative; width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.lightbox-image { max-width: 100%; max-height: 80vh; object-fit: contain; display: block; border-radius: 8px; box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5); animation: lightboxFadeIn 0.3s ease; }
@keyframes lightboxFadeIn { from { opacity: 0; transform: scale(0.9); } to { opacity: 1; transform: scale(1); } }
.lightbox-title { margin-top: 20px; color: #ffffff; font-size: 18px; font-weight: 600; text-align: center; }
.lightbox-counter { margin-top: 10px; color: rgba(255, 255, 255, 0.8); font-size: 14px; }
.lightbox-close { position: absolute; top: -40px; right: 0; width: 40px; height: 40px; background: rgba(255, 255, 255, 0.2); border: none; border-radius: 50%; color: #ffffff; font-size: 32px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s ease; z-index: 10000; }
.lightbox-close:hover { background: rgba(255, 255, 255, 0.3); transform: rotate(90deg); }
.lightbox-prev, .lightbox-next { position: absolute; top: 50%; transform: translateY(-50%); width: 50px; height: 50px; background: rgba(255, 255, 255, 0.2); border: none; border-radius: 50%; color: #ffffff; font-size: 36px; line-height: 1; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: all 0.3s ease; z-index: 10000; }
.lightbox-prev:hover, .lightbox-next:hover { background: rgba(255, 255, 255, 0.3); transform: translateY(-50%) scale(1.1); }
.lightbox-prev { left: -60px; }
.lightbox-next { right: -60px; }
.lightbox-prev:disabled, .lightbox-next:disabled { opacity: 0.3; cursor: not-allowed; }

@media (max-width: 768px) {
  .lightbox-container { width: 95%; }
  .lightbox-close { top: 10px; right: 10px; width: 36px; height: 36px; font-size: 28px; }
  .lightbox-prev, .lightbox-next { width: 40px; height: 40px; font-size: 28px; }
  .lightbox-prev { left: 10px; }
  .lightbox-next { right: 10px; }
  .lightbox-title { font-size: 16px; margin-top: 15px; }
  .lightbox-counter { font-size: 12px; }
}