/* ===== 1. 变量与基础 ===== */
:root{
  --blue:#0056b3; --blue-dark:#003f85; --red:#d9381e;
  --dark:#333; --gray:#666; --lgray:#f4f6f9; --border:#eaeaea;
  /* 等价别名（与上方变量同值） */
  --primary-blue:#0056b3; --accent-red:#d9381e; --light-gray:#f4f6f9;
  --text-dark:#333; --text-gray:#666; --bg-white:#fff;
}
*{margin:0;padding:0;box-sizing:border-box;font-family:"Microsoft YaHei","PingFang SC",sans-serif}
html{scroll-behavior:smooth}
body{background:#fff;color:var(--dark);overflow-x:hidden}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{max-width:100%;display:block}

/* ===== 2. 容器与公共标题 ===== */
.container,.top-container{max-width:1600px;margin:0 auto;padding:0 40px}
.section-header{text-align:center;margin-bottom:48px}
.section-header h2{font-size:36px;color:var(--blue);font-weight:bold;margin-bottom:8px}
.section-header h2 span{color:var(--red)}
.section-header .sub-title{font-size:14px;color:var(--gray);text-transform:uppercase;letter-spacing:2px;margin-bottom:13px}
.section-header .divider{width:70px;height:3px;background:linear-gradient(to right,var(--blue),var(--red));margin:0 auto}

/* ===== 3. 顶部条 ===== */
.top-bar{background:var(--lgray);border-bottom:1px solid #e5e5e5;font-size:14px;color:var(--gray);padding:8px 0}
.top-bar .container,.top-bar .top-container{display:flex;justify-content:space-between;align-items:center}
.top-right a:hover{color:var(--blue)}

/* ===== 4. 页头 ===== */
.header-main{max-width:1600px;margin:0 auto;padding:25px 40px;display:flex;justify-content:space-between;align-items:center;gap:20px}
.logo-area{display:flex;align-items:center;gap:18px}
.logo-area img{height:105px}
.company-info h1{font-size:36px;color:var(--blue);font-weight:bold;letter-spacing:1px}
.company-info p{font-size:24px;color:var(--gray);margin-top:4px}
.company-info p span{color:var(--red);font-weight:bold}
.hotline-box{display:flex;align-items:center;gap:15px;background:linear-gradient(135deg,#fff,var(--lgray));padding:12px 25px;border-radius:50px;border:2px solid var(--blue);box-shadow:0 4px 15px rgba(0,86,179,.1);flex-shrink:0}
.hotline-box i{font-size:26px;color:var(--red);animation:pulse 1.5s infinite}
.hotline-text .label{font-size:12px;color:var(--gray)}
.hotline-text .phone{font-size:22px;font-weight:bold;color:var(--blue)}
@keyframes pulse{0%{transform:scale(1)}50%{transform:scale(1.12)}100%{transform:scale(1)}}

/* ===== 5. 导航 ===== */
.nav-bar{background:var(--blue);box-shadow:0 4px 10px rgba(0,0,0,.12);position:sticky;top:0;z-index:1000}
.nav-container{max-width:1600px;margin:0 auto;padding:0 40px;display:flex;justify-content:space-between;align-items:center}
.nav-menu{display:flex;width:100%}
.nav-item{position:relative;flex:1}
.nav-item>a{display:block;text-align:center;padding:16px 0;color:#fff;font-size:16px;font-weight:500;transition:.3s}
.nav-item:hover>a,.nav-item.active>a{background:var(--red)}
.dropdown-menu{position:absolute;top:100%;left:0;width:100%;background:#fff;box-shadow:0 10px 20px rgba(0,0,0,.15);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s ease;z-index:100}
.nav-item:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu li a{display:block;padding:12px 15px;color:var(--dark);font-size:14px;border-bottom:1px solid #f1f1f1;transition:.2s;text-align:center}
.dropdown-menu li a:hover{background:var(--lgray);color:var(--blue);padding-left:20px}
.mobile-menu-toggle{display:none;background:none;border:none;font-size:24px;color:#fff;cursor:pointer;min-width:44px;min-height:44px;align-items:center;justify-content:center;padding:0}

/* ===== 6. 内页横幅 ===== */
.page-hero{position:relative;height:300px;background:linear-gradient(120deg,rgba(0,63,133,.85),rgba(0,86,179,.68) 55%,rgba(217,56,30,.4)),url('https://img03.taishanzhicheng.com/aonierkui/banner/ban1.jpg') center/cover no-repeat;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff}
.page-hero .hero-inner{position:relative;z-index:2;padding:0 20px}
.page-hero h2{font-size:42px;letter-spacing:2px;margin-bottom:10px}
.page-hero .hero-en{font-size:15px;letter-spacing:3px;opacity:.85;text-transform:uppercase;margin-bottom:14px}
.breadcrumb{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.14);padding:8px 20px;border-radius:30px;font-size:14px}
.breadcrumb i{font-size:11px;color:rgba(255,255,255,.75)}
.breadcrumb a:hover{color:#ffd9cf}

/* ===== 7. 板块与按钮 ===== */
.section{padding:80px 0}
.bg-gray{background:var(--lgray)}
.btn{display:inline-block;padding:12px 32px;border-radius:30px;font-size:15px;font-weight:bold;transition:.3s;cursor:pointer;border:none}
.btn-blue{background:var(--blue);color:#fff}
.btn-blue:hover{background:var(--blue-dark);box-shadow:0 5px 15px rgba(0,86,179,.35)}
.btn-red{background:var(--red);color:#fff}
.btn-red:hover{background:#b52c15;box-shadow:0 5px 15px rgba(217,56,30,.4)}
.btn-outline{background:transparent;color:var(--blue);border:2px solid var(--blue)}
.btn-outline:hover{background:var(--blue);color:#fff}

/* ===== 8. 首页 Banner（视频/轮播） ===== */
.banner-section{position:relative;height:700px;overflow:hidden}
.banner-section video{height:110vh;height:100dvh;width:100%;max-width:none;object-fit:cover;object-position:center center}
.banner-slide{position:absolute;top:0;left:0;width:100%;height:100%;opacity:0;transition:opacity 1s ease-in-out;background-size:cover;background-position:center;display:flex;align-items:center;justify-content:center}
.banner-slide.active{opacity:1}
.banner-content{position:relative;z-index:2;text-align:center;color:#fff;padding:0 20px}
.banner-content h2{font-size:50px;margin-bottom:20px;letter-spacing:2px}
.banner-content p{font-size:20px;margin-bottom:30px;color:#e0e0e0}
.banner-btn{background-color:var(--red);color:#fff;padding:12px 35px;border-radius:30px;font-size:16px;font-weight:bold;transition:.3s;display:inline-block}
.banner-btn:hover{background-color:#b52c15;box-shadow:0 5px 15px rgba(217,56,30,.4)}
.banner-arrow{position:absolute;top:50%;transform:translateY(-50%);background:rgba(0,0,0,.5);color:#fff;border:none;width:50px;height:50px;border-radius:50%;cursor:pointer;z-index:10;font-size:20px;transition:.3s}
.banner-arrow:hover{background:var(--blue)}
.banner-prev{left:40px}
.banner-next{right:40px}

/* ===== 9. 产品区（首页产品中心与产品中心页共用卡片样式） ===== */
.products-section{max-width:1600px;margin:0 auto;padding:90px 40px}
.products-container{display:flex;gap:40px}
.products-layout{display:flex;gap:40px;align-items:flex-start}
.product-sidebar{width:300px;background:var(--lgray);border-radius:8px;padding:25px;box-shadow:0 5px 15px rgba(0,0,0,.05);flex-shrink:0}
.sidebar-intro{font-size:34px;font-weight:bold;color:var(--blue);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--red)}
.category-list li{padding:14px 18px;margin-bottom:10px;background:#fff;border-radius:4px;cursor:pointer;transition:.3s;font-size:15px;color:var(--dark);border-left:4px solid transparent}
.category-list li:hover,.category-list li.active{background:var(--blue);color:#fff;border-left-color:var(--red);transform:translateX(5px)}
.product-display{flex:1}
.product-main{flex:1;min-width:0}
.cat-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:14px;border-bottom:1px solid var(--border)}
.cat-bar h3{font-size:22px;color:var(--blue)}
.cat-bar span{font-size:14px;color:var(--gray)}
.product-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:25px;transition:opacity .2s}
.product-card{background:#fff;border:1px solid var(--border);border-radius:8px;overflow:hidden;transition:.3s;box-shadow:0 2px 8px rgba(0,0,0,.04)}
.product-card:hover{transform:translateY(-8px);box-shadow:0 10px 25px rgba(0,86,179,.15);border-color:var(--blue)}
.product-card img{width:100%;height:170px;object-fit:contain;transition:.5s}
.product-card .img-box{height:170px;overflow:hidden}
.product-card .img-box img{height:100%}
.product-card:hover img{transform:scale(1.06)}
.product-card-body{padding:16px;text-align:center}
.product-card-body h4{font-size:16px;color:var(--dark);margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.product-card-body .spec{color:var(--gray);font-size:13px;margin-bottom:12px}
.product-card-body .price{color:var(--red);font-weight:bold;font-size:13px;margin-bottom:12px}
.detail-link{display:inline-block;background:var(--blue);color:#fff;font-size:13px;padding:7px 22px;border-radius:20px;transition:.3s}
.detail-link:hover{background:var(--red)}


/* ===== 10. 三大优势（首页） ===== */
.advantage-section{background-color:var(--lgray);padding:100px 0}
.advantage-container{max-width:1600px;margin:0 auto;padding:0 40px;display:flex;flex-direction:column;gap:50px}
.advantage-item{display:flex;align-items:center;background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.06);transition:.3s}
.advantage-item:hover{box-shadow:0 15px 40px rgba(0,86,179,.15)}
.advantage-item:nth-child(odd){flex-direction:row}
.advantage-img{width:50%;height:400px;position:relative;overflow:hidden;flex-shrink:0}
.advantage-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.advantage-item:hover .advantage-img img{transform:scale(1.05)}
.advantage-badge{position:absolute;top:25px;left:25px;background:var(--red);color:#fff;width:65px;height:65px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:26px;font-weight:bold;box-shadow:0 4px 10px rgba(0,0,0,.2);z-index:2}
.advantage-content{width:50%;padding:50px}
.advantage-content h3{font-size:26px;color:var(--blue);margin-bottom:18px;font-weight:bold}
.advantage-content h3 span{color:var(--red)}
.advantage-content p{font-size:15px;color:var(--gray);line-height:1.8;margin-bottom:25px}
.sub-points{display:grid;grid-template-columns:1fr 1fr;gap:15px}
.sub-points li{font-size:14px;color:var(--dark);display:flex;align-items:center;gap:10px}
.sub-points li i{color:var(--red);font-size:13px}

/* ===== 11. 合作客户（首页，默认隐藏） ===== */
.clients-section{max-width:1600px;margin:0 auto;padding:90px 40px;position:relative}
.clients-wrapper{overflow:hidden;position:relative}
.clients-track{display:flex;gap:30px;transition:transform .5s ease}
.client-logo-box{min-width:250px;height:110px;background:var(--lgray);border:1px solid #eaeaea;border-radius:8px;display:flex;align-items:center;justify-content:center;padding:20px;filter:grayscale(100%);transition:.3s}
.client-logo-box:hover{filter:grayscale(0%);border-color:var(--blue);box-shadow:0 5px 15px rgba(0,0,0,.08)}
.client-logo-box img{max-width:100%;max-height:100%;object-fit:contain}
.client-btn{position:absolute;top:55%;transform:translateY(-50%);background:var(--blue);color:#fff;border:none;width:45px;height:45px;border-radius:50%;cursor:pointer;z-index:10;transition:.3s}
.client-btn:hover{background:var(--red)}
.client-prev{left:10px}
.client-next{right:10px}

/* ===== 12. 横屏广告（首页，默认隐藏） ===== */
.banner-ad-section{background:linear-gradient(rgba(0,86,179,.85),rgba(217,56,30,.85)),url('https://images.unsplash.com/photo-1558494949-ef010cbdcc31?auto=format&fit=crop&w=1600&q=80') center/cover fixed;height:300px;display:flex;align-items:center;justify-content:center;text-align:center;color:#fff;padding:0 40px}
.banner-ad-content h2{font-size:40px;margin-bottom:15px;letter-spacing:2px}
.banner-ad-content p{font-size:19px;margin-bottom:25px;color:#f1f1f1}
.banner-ad-btn{display:inline-block;background:#fff;color:var(--blue);padding:12px 35px;border-radius:30px;font-weight:bold;font-size:16px;transition:.3s}
.banner-ad-btn:hover{background:var(--red);color:#fff;box-shadow:0 5px 15px rgba(0,0,0,.3)}

/* ===== 13. 关于我们区块（首页） ===== */
.about-section{max-width:1600px;margin:0 auto;padding:100px 40px}
.about-main-content{display:flex;align-items:center;gap:60px;margin-bottom:80px}
.about-text{flex:1}
.about-text h3{font-size:28px;color:var(--blue);margin-bottom:20px}
.about-text h3 span{color:var(--red)}
.about-text p{font-size:16px;color:var(--gray);line-height:1.8;margin-bottom:20px}
.about-img{flex:1;border-radius:10px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.1)}
.about-img img{width:100%;height:400px;object-fit:cover;transition:.5s}
.about-img:hover img{transform:scale(1.05)}

/* ===== 14. 数据统计（首页+关于页） ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-card{background:#fff;border-top:4px solid var(--blue);padding:35px 20px;text-align:center;border-radius:6px;box-shadow:0 4px 12px rgba(0,0,0,.05);transition:.3s}
.stat-card:hover{transform:translateY(-5px);border-top-color:var(--red);box-shadow:0 8px 20px rgba(0,86,179,.1)}
.stat-card .number{font-size:40px;font-weight:bold;color:var(--red);margin-bottom:10px}
.stat-card .label{font-size:15px;color:var(--dark);font-weight:500}

/* ===== 15. 荣誉资质（首页+关于页） ===== */
.honor-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:20px}
.honor-item{background:#fff;padding:10px;border:1px solid #eee;border-radius:4px;text-align:center;box-shadow:0 2px 5px rgba(0,0,0,.05);transition:.3s}
.honor-item:hover{transform:translateY(-5px);box-shadow:0 8px 20px rgba(0,86,179,.12);border-color:var(--blue)}
.honor-item .img-box{width:100%;height:200px;overflow:hidden;display:flex;align-items:center;justify-content:center}
.honor-item img{max-width:100%;max-height:100%;object-fit:contain}
.honor-item p{font-size:14px;color:#444;margin-top:10px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ===== 16. 新闻中心（首页新闻区） ===== */
.news-section{background-color:var(--lgray);padding:100px 0}
.news-container{max-width:1600px;margin:0 auto;padding:0 40px;display:flex;gap:40px}
.news-main-item{flex:1;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.05);transition:.3s;display:flex;flex-direction:column}
.news-main-item:hover{transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,86,179,.12)}
.news-main-img{height:280px;overflow:hidden;position:relative}
.news-main-img img{width:100%;height:100%;object-fit:cover;transition:.5s}
.news-main-item:hover .news-main-img img{transform:scale(1.05)}
.news-date-badge{position:absolute;bottom:15px;left:15px;background:var(--red);color:#fff;padding:10px 15px;border-radius:4px;text-align:center;font-weight:bold}
.news-date-badge .day{font-size:22px;line-height:1}
.news-date-badge .month{font-size:12px;text-transform:uppercase}
.news-main-body{padding:30px;flex:1;display:flex;flex-direction:column;justify-content:space-between}
.news-main-body h3{font-size:20px;color:var(--blue);margin-bottom:15px}
.news-main-body p{font-size:15px;color:var(--gray);line-height:1.7}
.news-list{flex:1;display:flex;flex-direction:column;gap:18px}
.news-sub-item{background:#fff;padding:22px 25px;border-radius:8px;display:flex;align-items:center;gap:20px;box-shadow:0 3px 10px rgba(0,0,0,.03);transition:.3s}
.news-sub-item:hover{transform:translateX(5px);border-left:4px solid var(--red);box-shadow:0 5px 15px rgba(0,86,179,.1)}
.sub-date-box{background:var(--lgray);color:var(--blue);padding:10px 15px;border-radius:6px;text-align:center;min-width:65px;font-weight:bold;border:1px solid #e1e1e1}
.sub-date-box .s-day{font-size:18px;line-height:1}
.sub-date-box .s-mon{font-size:11px;color:var(--gray)}
.news-sub-content h4{font-size:16px;color:var(--dark);margin-bottom:8px;transition:.2s}
.news-sub-item:hover .news-sub-content h4{color:var(--blue)}
.news-sub-content p{font-size:14px;color:var(--gray);display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}

/* ===== 17. 关于我们页 ===== */
.intro-main{display:flex;align-items:center;gap:60px}
.intro-img{flex:1;border-radius:10px;overflow:hidden;box-shadow:0 10px 30px rgba(0,0,0,.1);position:relative}
.intro-img img{width:100%;height:430px;object-fit:cover;transition:.5s}
.intro-img:hover img{transform:scale(1.05)}
.intro-text{flex:1}
.intro-text h3{font-size:28px;color:var(--blue);margin-bottom:20px}
.intro-text h3 span{color:var(--red)}
.intro-text p{font-size:15px;color:var(--gray);line-height:1.9;margin-bottom:16px}
.intro-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:20px 0 28px}
.intro-points li{font-size:14px;display:flex;align-items:center;gap:10px;color:var(--dark)}
.intro-points li i{color:var(--red);font-size:13px}

/* 发展历程时间轴（grid 三列：阶段 / 轴线 / 内容） */
.timeline{display:grid;grid-template-columns:170px 40px 1fr;column-gap:18px;row-gap:36px;max-width:1080px;margin:0 auto;position:relative}
.timeline::before{content:'';position:absolute;left:calc(170px + 18px + 20px - 1px);top:6px;bottom:6px;width:2px;background:linear-gradient(to bottom,var(--blue),var(--red))}
.tl-item{display:contents}
.tl-time{align-self:start;padding-top:20px;text-align:right}
.tl-time .tl-badge{display:inline-block;background:var(--red);color:#fff;font-size:12px;padding:6px 16px;border-radius:20px;font-weight:bold;letter-spacing:1px}
.tl-axis{justify-self:center;align-self:start;padding-top:16px}
.tl-dot{width:18px;height:18px;border-radius:50%;background:#fff;border:4px solid var(--blue);box-shadow:0 0 0 5px rgba(0,86,179,.12);display:block}
.tl-body{background:#fff;border:1px solid var(--border);border-left:4px solid var(--blue);border-radius:8px;padding:22px 26px;box-shadow:0 3px 10px rgba(0,0,0,.04);transition:.3s}
.tl-body:hover{transform:translateX(6px);box-shadow:0 8px 20px rgba(0,86,179,.12)}
.tl-body h4{font-size:19px;color:var(--blue);margin-bottom:8px}
.tl-body p{font-size:14px;color:var(--gray);line-height:1.8}

/* 企业文化 */
.culture-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}
.culture-card{background:#fff;border-radius:10px;padding:35px 25px;text-align:center;box-shadow:0 4px 15px rgba(0,0,0,.05);transition:.3s;border-top:4px solid transparent}
.culture-card:hover{transform:translateY(-8px);border-top-color:var(--red);box-shadow:0 12px 28px rgba(0,86,179,.13)}
.culture-card .icon{width:68px;height:68px;margin:0 auto 18px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;font-size:26px;display:flex;align-items:center;justify-content:center}
.culture-card h4{font-size:17px;color:var(--blue);margin-bottom:12px}
.culture-card p{font-size:13px;color:var(--gray);line-height:1.8}

/* 厂区环境 */
.workshop-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.workshop-item{position:relative;border-radius:8px;overflow:hidden;height:230px}
.workshop-item img{width:100%;height:100%;object-fit:cover;transition:.5s}
.workshop-item:hover img{transform:scale(1.08)}
.workshop-item .cap{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(to top,rgba(0,0,0,.65),transparent);color:#fff;font-size:14px;padding:30px 18px 14px;letter-spacing:1px}


/* ===== 18. 产品中心页 ===== */
/* 分页（产品/新闻列表共用） */
.pagination{display:flex;justify-content:center;gap:10px;margin-top:40px}
.pagination a,.pagination span{min-width:40px;height:40px;line-height:40px;text-align:center;border:1px solid #ddd;border-radius:6px;color:var(--dark);font-size:14px;cursor:pointer;transition:.3s;background:#fff}
.pagination a:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
.pagination .cur{background:var(--red);color:#fff;border-color:var(--red);cursor:default}
.pagination .disabled{opacity:.4;cursor:not-allowed}

/* 定制服务条（产品中心/产品详情共用） */
.cta-strip{background:linear-gradient(120deg,rgba(0,86,179,.92),rgba(217,56,30,.85)),url('https://img03.taishanzhicheng.com/donghong/img/ys/ys1.jpg') center/cover;padding:60px 40px;border-radius:12px;display:flex;align-items:center;justify-content:space-between;gap:30px;color:#fff}
.cta-strip h3{font-size:28px;margin-bottom:10px;letter-spacing:1px}
.cta-strip p{font-size:15px;opacity:.92;line-height:1.8}
.cta-strip .hot{font-size:26px;font-weight:bold;letter-spacing:1px}

/* ===== 19. 产品详情页 ===== */
.detail-top{display:flex;gap:50px;align-items:flex-start}
.detail-gallery{width:46%;flex-shrink:0}
.detail-gallery .main-img{border:1px solid var(--border);border-radius:10px;overflow:hidden;box-shadow:0 8px 25px rgba(0,0,0,.08)}
.detail-gallery .main-img img{width:100%;height:420px;object-fit:cover}
.detail-info{flex:1}
.detail-info .model-tag{display:inline-block;background:var(--red);color:#fff;font-size:13px;padding:5px 16px;border-radius:20px;margin-bottom:14px;font-weight:bold}
.detail-info h2{font-size:30px;color:var(--blue);margin-bottom:14px}
.detail-info .lead{font-size:15px;color:var(--gray);line-height:1.9;margin-bottom:22px}
.param-list{border:1px solid var(--border);border-radius:8px;overflow:hidden;margin-bottom:26px}
.param-list li{display:flex;font-size:14px;border-bottom:1px solid var(--border);background:#fff}
.param-list li:last-child{border-bottom:none}
.param-list li:nth-child(even){background:var(--lgray)}
.param-list .k{width:150px;background:var(--lgray);padding:12px 18px;font-weight:bold;color:var(--blue);flex-shrink:0}
.param-list li:nth-child(even) .k{background:#eef1f5}
.param-list .v{padding:12px 18px;color:var(--dark)}
.detail-actions{display:flex;gap:15px}
.spec-table-wrap{overflow-x:auto;background:#fff;border:1px solid var(--border);border-radius:8px;box-shadow:0 4px 15px rgba(0,0,0,.04)}
.spec-table{width:100%;table-layout:fixed;border-collapse:collapse;font-size:14px;min-width:760px}
.spec-table colgroup col:nth-child(1){width:22%}
.spec-table colgroup col:nth-child(2){width:20%}
.spec-table colgroup col:nth-child(3){width:13%}
.spec-table colgroup col:nth-child(4){width:13%}
.spec-table colgroup col:nth-child(5){width:18%}
.spec-table colgroup col:nth-child(6){width:14%}
.spec-table th{background:var(--blue);color:#fff;padding:13px 10px;font-weight:bold;text-align:center}
.spec-table td{padding:12px 10px;text-align:center;border-bottom:1px solid var(--border);color:var(--dark)}
.spec-table tr:nth-child(even) td{background:var(--lgray)}
.spec-table tr:hover td{background:#eaf2fc}
.table-note{font-size:13px;color:var(--gray);margin-top:12px}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.feature-item{display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:8px;padding:24px;transition:.3s}
.feature-item:hover{transform:translateY(-5px);box-shadow:0 10px 25px rgba(0,86,179,.12);border-color:var(--blue)}
.feature-item .fi{width:52px;height:52px;flex-shrink:0;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;font-size:20px;display:flex;align-items:center;justify-content:center}
.feature-item h4{font-size:16px;color:var(--blue);margin-bottom:8px}
.feature-item p{font-size:13px;color:var(--gray);line-height:1.7}
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.app-card{border-radius:8px;overflow:hidden;background:#fff;box-shadow:0 4px 15px rgba(0,0,0,.06);transition:.3s;text-align:center;padding-bottom:22px}
.app-card:hover{transform:translateY(-6px);box-shadow:0 12px 28px rgba(0,86,179,.14)}
.app-card img{width:100%;height:180px;object-fit:cover}
.app-card h4{font-size:16px;color:var(--dark);margin:16px 0 8px}
.app-card p{font-size:13px;color:var(--gray);padding:0 20px;line-height:1.7}
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}

/* ===== 20. 新闻中心页 ===== */
.news-layout{display:flex;gap:40px;align-items:flex-start}
.news-main{flex:1;min-width:0}
.news-side{width:320px;flex-shrink:0}
.news-tabs{display:flex;gap:0;margin-bottom:30px;border-bottom:2px solid var(--border)}
.news-tabs li{padding:12px 26px;font-size:15px;color:var(--gray);cursor:pointer;border-bottom:3px solid transparent;margin-bottom:-2px;transition:.3s;font-weight:bold}
.news-tabs li:hover{color:var(--blue)}
.news-tabs li.active{color:var(--red);border-bottom-color:var(--red)}
.news-item{display:flex;gap:24px;background:#fff;border:1px solid var(--border);border-radius:8px;padding:24px;margin-bottom:20px;transition:.3s;box-shadow:0 3px 10px rgba(0,0,0,.03)}
.news-item:hover{transform:translateX(6px);border-left:4px solid var(--red);box-shadow:0 8px 20px rgba(0,86,179,.1)}
.news-date{background:var(--lgray);color:var(--blue);padding:14px 18px;border-radius:6px;text-align:center;min-width:78px;font-weight:bold;border:1px solid #e1e1e1;flex-shrink:0;height:fit-content}
.news-date .d{font-size:22px;line-height:1.1;display:block}
.news-date .m{font-size:12px;color:var(--gray);display:block;margin-top:4px}
.news-body{flex:1;min-width:0}
.news-body h3{font-size:18px;color:var(--dark);margin-bottom:10px;transition:.2s}
.news-item:hover .news-body h3{color:var(--blue)}
.news-body p{font-size:14px;color:var(--gray);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body .meta{font-size:12px;color:#999;margin-top:12px;display:flex;gap:18px}
.news-body .meta i{color:var(--red);margin-right:4px}

/* 侧栏组件（新闻中心/新闻详情共用） */
.widget{background:#fff;border:1px solid var(--border);border-radius:8px;padding:24px;margin-bottom:25px;box-shadow:0 3px 10px rgba(0,0,0,.03)}
.widget h3{font-size:17px;color:var(--blue);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--red);position:relative}
.widget h3::after{content:'';position:absolute;left:0;bottom:-2px;width:40px;height:2px;background:var(--red)}
.widget ul li{padding:12px 0;border-bottom:1px dashed #eee;font-size:14px;transition:.3s;display:flex;align-items:center;gap:10px}
.widget ul li:last-child{border-bottom:none}
.widget ul li i{color:var(--red);font-size:12px;flex-shrink:0}
.widget ul li a:hover{color:var(--blue)}
.widget ul li .w-date{margin-left:auto;font-size:12px;color:#aaa;flex-shrink:0}
.hot-badge{background:var(--red);color:#fff;font-size:11px;padding:1px 8px;border-radius:3px;flex-shrink:0}
.contact-widget{background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;border:none}
.contact-widget h3{color:#fff;border-bottom-color:rgba(255,255,255,.3)}
.contact-widget h3::after{background:#fff}
.contact-widget p{font-size:13px;line-height:1.8;margin-bottom:10px;opacity:.9}
.contact-widget .phone{font-size:24px;font-weight:bold;margin:8px 0;color:#fff}
.contact-widget .phone i{color:var(--red);margin-right:8px}

/* ===== 21. 新闻详情页 ===== */
.article-layout{display:flex;gap:40px;align-items:flex-start}
.article-main{flex:1;min-width:0;background:#fff;border:1px solid var(--border);border-radius:8px;padding:40px;box-shadow:0 3px 10px rgba(0,0,0,.03)}
.article-title{font-size:26px;color:var(--blue);line-height:1.5;margin-bottom:18px}
.article-meta{display:flex;flex-wrap:wrap;gap:20px;font-size:13px;color:var(--gray);padding-bottom:18px;border-bottom:1px solid var(--border);margin-bottom:26px}
.article-meta i{color:var(--red);margin-right:5px}
.article-img{border-radius:8px;overflow:hidden;margin-bottom:26px}
.article-img img{width:100%;height:380px;object-fit:cover}
.article-content p{font-size:15px;color:var(--dark);line-height:2;margin-bottom:18px;text-align:justify}
.article-content h4{font-size:18px;color:var(--blue);margin:28px 0 14px;padding-left:14px;border-left:4px solid var(--red)}
.article-tags{display:flex;align-items:center;gap:10px;margin:28px 0;padding-top:20px;border-top:1px dashed var(--border)}
.article-tags span{background:var(--lgray);color:var(--blue);font-size:13px;padding:5px 14px;border-radius:20px}
.article-pn{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--border);padding-top:20px;font-size:14px}
.article-pn a{color:var(--gray);transition:.3s;max-width:46%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-pn a:hover{color:var(--blue)}
.article-pn .pn-label{color:var(--red);font-weight:bold;margin-right:6px}
.article-side{width:320px;flex-shrink:0}

/* ===== 22. 企业风采页 ===== */
.filter-tabs{display:flex;justify-content:center;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.filter-tabs li{padding:10px 26px;border:1px solid #ddd;border-radius:30px;font-size:14px;color:var(--gray);cursor:pointer;transition:.3s;background:#fff}
.filter-tabs li:hover{color:var(--blue);border-color:var(--blue)}
.filter-tabs li.active{background:var(--red);color:#fff;border-color:var(--red)}
.gallery-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.gallery-item{position:relative;border-radius:8px;overflow:hidden;cursor:pointer;height:250px;box-shadow:0 4px 12px rgba(0,0,0,.06);transition:.3s}
.gallery-item img{width:100%;height:100%;object-fit:cover;transition:.5s}
.gallery-item:hover img{transform:scale(1.08)}
.gallery-item .overlay{position:absolute;left:0;right:0;bottom:0;background:linear-gradient(to top,rgba(0,30,60,.85),transparent);color:#fff;padding:34px 18px 14px;opacity:0;transition:.35s}
.gallery-item:hover .overlay{opacity:1}
.gallery-item .overlay h4{font-size:15px;margin-bottom:4px;letter-spacing:1px}
.gallery-item .overlay p{font-size:12px;color:rgba(255,255,255,.75)}
.gallery-item .zoom{position:absolute;top:14px;right:14px;width:36px;height:36px;background:rgba(255,255,255,.9);color:var(--blue);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:14px;opacity:0;transition:.3s}
.gallery-item:hover .zoom{opacity:1}
.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.9);z-index:2000;display:none;align-items:center;justify-content:center;flex-direction:column;padding:40px 20px}
.lightbox.show{display:flex}
.lightbox img{max-width:88%;max-height:76vh;object-fit:contain;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lightbox .lb-cap{color:#fff;font-size:15px;margin-top:16px;letter-spacing:1px}
.lightbox .lb-close{position:absolute;top:24px;right:32px;color:#fff;font-size:30px;cursor:pointer;width:46px;height:46px;display:flex;align-items:center;justify-content:center;border-radius:50%;transition:.3s}
.lightbox .lb-close:hover{background:rgba(255,255,255,.15)}
.lightbox .lb-btn{position:absolute;top:50%;transform:translateY(-50%);color:#fff;font-size:26px;width:54px;height:54px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:rgba(255,255,255,.12);cursor:pointer;transition:.3s;border:none}
.lightbox .lb-btn:hover{background:var(--red)}
.lightbox .lb-prev{left:24px}
.lightbox .lb-next{right:24px}
.lightbox .lb-count{position:absolute;bottom:26px;color:rgba(255,255,255,.7);font-size:14px}

/* ===== 23. 联系我们页 ===== */
.contact-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;margin-bottom:60px}
.contact-card{background:#fff;border:1px solid var(--border);border-radius:10px;padding:32px 22px;text-align:center;transition:.3s;box-shadow:0 4px 12px rgba(0,0,0,.04)}
.contact-card:hover{transform:translateY(-6px);box-shadow:0 12px 28px rgba(0,86,179,.13);border-color:var(--blue)}
.contact-card .icon{width:60px;height:60px;margin:0 auto 16px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;font-size:24px;display:flex;align-items:center;justify-content:center}
.contact-card h4{font-size:15px;color:var(--gray);font-weight:normal;margin-bottom:8px}
.contact-card .val{font-size:17px;color:var(--blue);font-weight:bold;line-height:1.5}
.contact-card .val small{display:block;font-size:13px;color:var(--gray);font-weight:normal;margin-top:4px}
.contact-main{display:flex;gap:40px;align-items:stretch}
.contact-form-box{flex:1;background:#fff;border:1px solid var(--border);border-radius:10px;padding:36px;box-shadow:0 4px 15px rgba(0,0,0,.04)}
.contact-form-box h3{font-size:22px;color:var(--blue);margin-bottom:8px}
.contact-form-box .form-tip{font-size:13px;color:var(--gray);margin-bottom:24px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:14px;color:var(--dark);margin-bottom:8px;font-weight:bold}
.form-group label i{color:var(--red);margin-right:4px}
.form-group label .req{color:var(--red)}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:12px 15px;border:1px solid #ddd;border-radius:6px;font-size:16px;font-family:inherit;transition:.3s;background:#fcfcfd;color:var(--dark)}
.form-group input:focus,.form-group textarea:focus,.form-group select:focus{outline:none;border-color:var(--blue);background:#fff;box-shadow:0 0 0 3px rgba(0,86,179,.1)}
.form-group textarea{height:130px;resize:vertical}
.form-submit{margin-top:6px}
.contact-map-box{flex:1;display:flex;flex-direction:column;gap:22px}
.map-panel{flex:1;position:relative;border-radius:10px;overflow:hidden;background:linear-gradient(135deg,#eaf2fc,#dbe7f7);border:1px solid var(--border);min-height:340px;display:flex;align-items:center;justify-content:center}
.map-panel::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle,rgba(0,86,179,.12) 1px,transparent 1px);background-size:26px 26px}
.map-marker{position:relative;z-index:2;text-align:center;color:var(--blue)}
.map-marker .pin{width:74px;height:74px;margin:0 auto 14px;border-radius:50% 50% 50% 0;transform:rotate(-45deg);background:var(--red);display:flex;align-items:center;justify-content:center;box-shadow:0 8px 20px rgba(217,56,30,.4)}
.map-marker .pin i{transform:rotate(45deg);color:#fff;font-size:26px}
.map-marker .addr{font-size:17px;font-weight:bold;margin-bottom:6px}
.map-marker .sub{font-size:13px;color:var(--gray)}
.map-link{position:relative;z-index:2;display:inline-block;margin-top:16px;background:var(--blue);color:#fff;padding:10px 26px;border-radius:30px;font-size:14px;transition:.3s}
.map-link:hover{background:var(--red)}
.tip-box{background:#fff7f4;border:1px solid #f3d9cf;border-radius:10px;padding:22px 26px}
.tip-box h4{font-size:16px;color:var(--red);margin-bottom:12px}
.tip-box p{font-size:13px;color:var(--gray);line-height:1.9}

/* ===== 24. Toast（联系我们提交反馈） ===== */
.toast{position:fixed;top:90px;left:50%;transform:translateX(-50%) translateY(-20px);background:var(--blue);color:#fff;padding:14px 32px;border-radius:30px;font-size:14px;box-shadow:0 10px 30px rgba(0,0,0,.2);opacity:0;visibility:hidden;transition:.35s;z-index:3000}
.toast.show{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}

/* ===== 25. 页脚 ===== */
.footer{background:#1a1a1a;color:#b0b0b0;padding:80px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 2fr;gap:50px;border-bottom:1px solid #333;padding-bottom:45px;margin-bottom:40px}
.footer-container{max-width:1600px;margin:0 auto 40px;padding:0 40px 50px;display:grid;grid-template-columns:2fr 1fr 2fr;gap:50px;border-bottom:1px solid #333}
.footer-logo{font-size:22px;color:#fff;font-weight:bold;margin-bottom:20px;display:flex;align-items:center;gap:10px}
.footer-logo span{color:var(--red)}
.footer p{font-size:14px;line-height:1.8;margin-bottom:10px}
.footer-qr,.footer-col.qr{text-align:center;margin:0 auto;}
.footer-qr img,.footer-col.qr img{width:120px;height:120px;border:4px solid #fff;border-radius:4px;margin-bottom:12px}
.footer-qr p,.footer-col.qr p{font-size:13px;color:#fff;margin:0}
.footer-contact h3,.footer-col.contact h3{font-size:18px;color:#fff;margin-bottom:20px;position:relative;padding-bottom:8px}
.footer-contact h3::after,.footer-col.contact h3::after{content:'';position:absolute;left:0;bottom:0;width:35px;height:2px;background:var(--red)}
.footer-contact p,.footer-col.contact p{font-size:14px;margin-bottom:15px;display:flex;align-items:center;gap:12px}
.footer-contact p i,.footer-col.contact p i{color:var(--red)}
.footer-bottom{text-align:center;font-size:13px;color:#777}


/* ===== 26. 响应式 ===== */
/* ---------- 1200px（中屏） ---------- */
@media (max-width:1200px){
  .product-grid{grid-template-columns:repeat(3,1fr)}
  .honor-grid{grid-template-columns:repeat(3,1fr)}
}

/* ---------- 1024px（平板） ---------- */
@media (max-width:1024px){
  .container,.top-container,.header-main,.products-section,.about-section,.clients-section,.news-container,.footer-container{padding-left:20px;padding-right:20px}
  .header-main{padding:22px 20px}
  .section{padding:60px 0}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-container{grid-template-columns:1fr;gap:30px}
  /* 首页 */
  .products-container,.about-main-content,.news-container{flex-direction:column}
  .product-sidebar{width:100%}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .advantage-item{flex-direction:column !important}
  .advantage-img,.advantage-content,.about-img,.about-text{width:100%}
  .advantage-img{height:300px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  /* 关于我们页 */
  .intro-main{flex-direction:column}
  .intro-img{width:100%}
  .intro-img img{height:380px}
  .culture-grid{grid-template-columns:repeat(2,1fr)}
  .workshop-grid{grid-template-columns:repeat(2,1fr)}
  /* 产品中心页 */
  .products-layout{flex-direction:column}
  .category-list{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
  .category-list li{margin-bottom:0}
  .cta-strip{flex-direction:column;text-align:center;padding:50px 30px}
  /* 产品详情页 */
  .detail-top{flex-direction:column}
  .detail-gallery{width:100%}
  .feature-grid,.app-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  /* 新闻中心页 */
  .news-layout{flex-direction:column}
  .news-side{width:100%}
  /* 新闻详情页 */
  .article-layout{flex-direction:column}
  .article-side{width:100%}
  .article-main{padding:28px}
  /* 企业风采页 */
  .gallery-grid{grid-template-columns:repeat(3,1fr)}
  /* 联系我们页 */
  .contact-cards{grid-template-columns:repeat(2,1fr)}
  .contact-main{flex-direction:column}
}

/* ---------- 768px（手机） ---------- */
@media (max-width:768px){
  .top-bar{display:none}
  .container,.top-container,.header-main{padding-left:15px;padding-right:15px}
  .header-main{flex-direction:column;gap:15px;padding:15px;text-align:center}
  .logo-area{flex-direction:column;gap:10px}
  .company-info h1{font-size:20px}
  .company-info p{font-size:14px}
  .hotline-box{width:100%;justify-content:center;padding:10px 15px}
  .mobile-menu-toggle{display:flex}
  .nav-container{position:relative;padding:0}
  .nav-menu{display:none;flex-direction:column;width:100%;background:var(--blue)}
  .nav-menu.active{display:flex}
  .nav-item{width:100%;border-bottom:1px solid rgba(255,255,255,.1)}
  .nav-item>a{padding:12px 20px;text-align:left}
  .dropdown-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;background:rgba(0,0,0,.1)}
  .dropdown-menu li a{color:#fff;text-align:left;padding-left:35px;border-bottom:none}
  .page-hero{height:220px}
  .page-hero h2{font-size:28px}
  .section-header h2{font-size:26px}
  .footer{padding:50px 0 20px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  /* 首页 */
  .banner-section{height:450px}
  .banner-content h2{font-size:28px}
  .banner-content p{font-size:14px}
  .banner-arrow{width:35px;height:35px;font-size:14px}
  .banner-prev{left:10px}
  .banner-next{right:10px}
  .product-grid{grid-template-columns:1fr}
  .advantage-content{padding:25px}
  .advantage-content h3{font-size:20px}
  .sub-points{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .banner-ad-section{height:auto;padding:40px 20px}
  .banner-ad-content h2{font-size:24px}
  .banner-ad-content p{font-size:15px}
  .honor-grid{grid-template-columns:repeat(2,1fr)}
  .honor-item .img-box{height:150px}
  /* 关于我们页 */
  .intro-img img{height:260px}
  .intro-points{grid-template-columns:1fr}
  .timeline{grid-template-columns:96px 32px 1fr;column-gap:10px}
  .timeline::before{left:calc(96px + 10px + 16px - 1px)}
  .tl-dot{width:14px;height:14px}
  .tl-body{padding:16px}
  .tl-body h4{font-size:16px}
  .culture-grid{grid-template-columns:1fr}
  .workshop-grid{grid-template-columns:1fr}
  /* 产品中心页 */
  .category-list{grid-template-columns:repeat(2,1fr)}
  .cta-strip{padding:40px 25px}
  .cta-strip h3{font-size:22px}
  /* 产品详情页 */
  .detail-gallery .main-img img{height:260px}
  .detail-info h2{font-size:24px}
  .param-list .k{width:110px}
  .feature-grid,.app-grid{grid-template-columns:1fr}
  .related-grid{grid-template-columns:1fr}
  .cta-strip .hot{font-size:20px}
  /* 新闻中心页 */
  .news-item{flex-direction:column}
  .news-date{min-width:70px;align-self:flex-start}
  .news-tabs li{padding:10px 16px;font-size:14px}
  /* 新闻详情页 */
  .article-main{padding:20px}
  .article-title{font-size:20px}
  .article-img img{height:220px}
  .article-pn{flex-direction:column}
  .article-pn a{max-width:100%;white-space:normal}
  /* 企业风采页 */
  .gallery-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .gallery-item{height:190px}
  .lightbox .lb-btn{width:42px;height:42px;font-size:18px}
  .lightbox .lb-prev{left:8px}
  .lightbox .lb-next{right:8px}
  /* 联系我们页 */
  .contact-cards{grid-template-columns:1fr}
  .contact-form-box{padding:24px}
  .form-row{grid-template-columns:1fr}
  .map-link{padding:10px 26px;font-size:14px}
}

.pagination {
    display: inline-block;
    padding-left: 0;
    margin: 20px 0;
    border-radius: 4px; }
.pagination > li {
    display: inline; }
.pagination > li > a,
.pagination > li > span {
    position: relative;
    float: left;
    padding: 6px 12px;
    line-height: 1.42857;
    text-decoration: none;
    color: #337ab7;
    background-color: #fff;
    border: 1px solid #ddd;
    margin-left: -1px; }
.pagination > li:first-child > a,
.pagination > li:first-child > span {
    margin-left: 0;
    border-bottom-left-radius: 4px;
    border-top-left-radius: 4px; }
.pagination > li:last-child > a,
.pagination > li:last-child > span {
    border-bottom-right-radius: 4px;
    border-top-right-radius: 4px; }
.pagination > li > a:hover, .pagination > li > a:focus,
.pagination > li > span:hover,
.pagination > li > span:focus {
    z-index: 2;
    color: #23527c;
    background-color: #eeeeee;
    border-color: #ddd; }
.pagination > .active > a, .pagination > .active > a:hover, .pagination > .active > a:focus,
.pagination > .active > span,
.pagination > .active > span:hover,
.pagination > .active > span:focus {
    z-index: 3;
    color: #fff;
    background-color: #337ab7;
    border-color: #337ab7;
    cursor: default; }