/* ========== Reset & Base ========== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","微软雅黑",system-ui,Arial,sans-serif;font-size:14px;color:#333;line-height:1.6;background:#fff}

/* ========== Top Bar ========== */
.top-bar{background:#fff;color:#333;padding:14px 0}
.top-bar .wrap{max-width:1200px;margin:0 auto;padding:0 15px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap}
.logo-img{height:44px;width:auto;display:block}
/* 电话卡片：右对齐 */
.tel{display:flex;flex-direction:column;align-items:flex-end;gap:2px;border-left:3px solid #1B5FA8;padding-left:14px}
.tel-label{font-size:12px;color:#888;letter-spacing:1px}
.tel-num{font-size:22px;font-weight:bold;color:#1B5FA8;text-decoration:none;line-height:1.2}
.tel-num:hover{color:#E8832A}
.top-bar .logo-area{display:flex;align-items:center;gap:15px}
.top-bar .tel{text-align:right}

/* ========== Nav ========== */
nav{background:#173A5C;position:sticky;top:0;z-index:1000}
nav .wrap{max-width:1200px;margin:0 auto;padding:0 15px;display:flex;align-items:center}
nav ul{display:flex;list-style:none;flex-wrap:wrap;width:100%;flex:1}
nav ul li{position:relative;flex:1}
nav ul li a{display:block;padding:15px 20px;color:#fff;text-decoration:none;font-size:15px;transition:.3s;white-space:nowrap;text-align:center;letter-spacing:1px}
nav ul li a:hover,nav ul li a.active{background:#2A6CA8}
nav .submenu{display:none;position:absolute;top:100%;left:0;background:#173A5C;min-width:150px;z-index:100;box-shadow:0 4px 10px rgba(0,0,0,.3)}
nav li:hover>.submenu{display:block}
nav .submenu a{padding:10px 20px;font-size:13px;border-top:1px solid rgba(255,255,255,.1)}

/* Hamburger */
.hamburger{display:none;cursor:pointer;padding:15px}
.hamburger span{display:block;width:25px;height:3px;background:#fff;margin:5px 0;transition:.3s}

/* ========== Banner ========== */
.banner{position:relative;overflow:hidden;background:#e8edf3;height:450px}
.banner .slides{display:flex;transition:transform .6s ease;height:100%}
.banner .slide{min-width:100%;display:flex;align-items:center;justify-content:center;flex-direction:column;background:linear-gradient(135deg,#1B5FA8 0%,#2A6CA8 50%,#3E8FD9 100%);color:#fff;text-align:center;padding:40px;background-size:cover;background-position:center;position:relative}
.banner .slide .slide-mask{position:absolute;inset:0;background:linear-gradient(135deg,rgba(15,40,70,.78) 0%,rgba(15,40,70,.58) 60%,rgba(15,40,70,.28) 100%)}
.banner .slide h2,.banner .slide p,.banner .slide .btn{position:relative;z-index:2}
.banner .slide h2{font-size:40px;margin-bottom:15px;font-weight:bold}
.banner .slide p{font-size:18px;opacity:.9;max-width:600px;margin:0 auto 25px}
.banner .slide .btn{display:inline-block;padding:12px 35px;background:linear-gradient(135deg,#E8832A,#F59E0B);color:#fff;text-decoration:none;font-size:16px;font-weight:bold;border-radius:50px;transition:.3s;box-shadow:0 4px 14px rgba(232,131,42,.35)}
.banner .slide .btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(232,131,42,.45)}
.banner .dots{position:absolute;bottom:20px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.banner .dots span{width:12px;height:12px;border-radius:50%;background:rgba(255,255,255,.5);cursor:pointer;transition:.3s}
.banner .dots span.active{background:#fff;width:30px;border-radius:6px}

/* ========== Section Title ========== */
.sec-title{text-align:center;padding:60px 0 40px}
.sec-title h3,.sec-title h1{font-size:30px;color:#1B5FA8;margin-bottom:5px}
.sec-title .en{font-size:14px;color:#999;text-transform:uppercase;display:block;margin-bottom:15px}
.sec-title .icon-line{display:block;width:40px;height:3px;background:#1B5FA8;margin:0 auto 15px}
.sec-title .desc{color:#666;font-size:15px;max-width:700px;margin:0 auto;line-height:1.8}

/* ========== Products ========== */
.products{background:#f5f7fa;padding-bottom:60px;box-shadow:inset 0 -12px 16px -14px rgba(0,0,0,.12)}
.products .wrap{max-width:1200px;margin:0 auto;padding:0 15px}
.prod-cats{display:flex;justify-content:center;gap:10px;margin-bottom:30px;flex-wrap:wrap}
.prod-cats a{display:inline-block;padding:8px 20px;border:1px solid #1B5FA8;color:#1B5FA8;text-decoration:none;border-radius:4px;transition:.3s;font-size:14px}
.prod-cats a:hover,.prod-cats a.active{background:#1B5FA8;color:#fff}

/* ===== 产品中心：左侧分类 + 右侧产品 ===== */
.prod-layout{display:grid;grid-template-columns:240px 1fr;gap:30px;align-items:start}
.prod-side{display:flex;flex-direction:column;gap:20px}
.side-box{background:#fff;border:1px solid #eef0f3;border-radius:12px;padding:18px;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.side-title{font-size:16px;color:#1B5FA8;margin-bottom:14px;padding-bottom:10px;border-bottom:2px solid #1B5FA8;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:4px;height:18px;background:linear-gradient(180deg,#E8832A,#F59E0B);border-radius:2px;display:inline-block}
.side-cats{list-style:none;padding:0;margin:0}
.side-cats li{margin-bottom:6px}
.side-cats a{display:flex;justify-content:space-between;align-items:center;padding:10px 14px;color:#555;text-decoration:none;border-radius:8px;font-size:14px;transition:.25s}
.side-cats a span{background:#f0f4f8;color:#1B5FA8;font-size:12px;border-radius:10px;padding:1px 8px}
.side-cats a:hover{background:#eef5fd;color:#1B5FA8}
.side-cats a.active{background:#1B5FA8;color:#fff}
.side-cats a.active span{background:rgba(255,255,255,.2);color:#fff}
.side-contact{background:linear-gradient(135deg,#1B5FA8,#2A6CA8);border:none;color:#fff;text-align:center}
.side-contact .side-title{color:#fff;border-bottom-color:rgba(255,255,255,.25)}
.side-contact .side-title::before{background:linear-gradient(180deg,#FFD75E,#F59E0B)}
.side-phone{display:block;font-size:24px;font-weight:bold;color:#FFD75E;text-decoration:none;margin-bottom:8px}
.side-contact p{font-size:13px;color:rgba(255,255,255,.85);line-height:1.7;margin-bottom:14px}
.side-btn{display:inline-block;padding:9px 24px;background:#fff;color:#1B5FA8;border-radius:50px;font-size:14px;font-weight:bold;text-decoration:none;transition:.3s}
.side-btn:hover{background:#FFD75E}
.prod-main{min-width:0}
.prod-main .prod-grid{grid-template-columns:repeat(3,1fr)}
@media (max-width:1023px){
  .prod-layout{grid-template-columns:1fr}
  .prod-grid{grid-template-columns:repeat(2,1fr)}
  .prod-side{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;padding-bottom:8px;gap:10px}
  .prod-cats{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;justify-content:flex-start;padding-bottom:6px}
  .prod-side{flex-direction:row;flex-wrap:wrap}
  .side-box{flex:1;min-width:220px}
}
@media (max-width:768px){
  .prod-main .prod-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr !important}
  .banner{height:auto;min-height:280px;padding:50px 20px}
  .prod-card .info{padding:12px}
  .detail-grid a[href^="tel:"]{display:block;width:100% !important;text-align:center;padding:14px 0 !important;font-size:18px !important}
}

.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.prod-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.06);border:1px solid rgba(0,0,0,.04);transition:.3s;position:relative}
.prod-card:hover{transform:translateY(-5px);box-shadow:0 10px 28px rgba(0,0,0,.12)}
.prod-card .pic{height:220px;overflow:hidden;background:#fff;display:flex;align-items:center;justify-content:center}
.prod-card .pic img{width:100%;height:100%;object-fit:contain;background:#fff}
.prod-card .info{padding:20px;text-align:center}
.prod-card .info h4{font-size:16px;color:#222;margin-bottom:10px;font-weight:600}
.prod-card .info .cat{color:#1B5FA8;font-size:12px;margin-bottom:10px}
.prod-card .info .more{display:inline-block;padding:6px 20px;border:1px solid #1B5FA8;color:#1B5FA8;text-decoration:none;border-radius:4px;font-size:13px;transition:.3s}
.prod-card .info .more:hover{background:#1B5FA8;color:#fff}

/* ========== About ========== */
.about{padding-bottom:60px}
.about .wrap{max-width:1200px;margin:0 auto;padding:0 15px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.about .text h3{font-size:28px;color:#1B5FA8;margin-bottom:20px}
.about .text p{color:#666;font-size:15px;line-height:1.9;margin-bottom:15px}
.about .text .stats{display:flex;gap:30px;margin-top:25px;flex-wrap:wrap}
.about .text .stat-item{text-align:center}
.about .text .stat-item .num{font-size:36px;font-weight:bold;color:#1B5FA8}
.about .text .stat-item .label{font-size:13px;color:#999;margin-top:5px}
.about .image{text-align:center}
.about .image img{max-width:100%;border-radius:8px;box-shadow:0 4px 20px rgba(0,0,0,.1)}

/* ========== Cases ========== */
.cases{background:#f5f7fa;padding-bottom:60px;box-shadow:inset 0 -12px 16px -14px rgba(0,0,0,.12)}
.cases .wrap{max-width:1200px;margin:0 auto;padding:0 15px}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:25px}
.case-card{background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 2px 10px rgba(0,0,0,.08);transition:.3s}
.case-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.case-card .pic{height:200px;overflow:hidden;background:#e8edf3}
.case-card .pic img{width:100%;height:100%;object-fit:cover}
.case-card .info{padding:20px}
.case-card .info h4{font-size:16px;color:#333;margin-bottom:8px}
.case-card .info p{color:#999;font-size:13px;line-height:1.6}

/* ========== News ========== */
.news{padding-bottom:60px}
.news .wrap{max-width:1200px;margin:0 auto;padding:0 15px}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.news-card{padding:24px 20px;border-bottom:1px dotted #ddd;transition:.3s;cursor:pointer}
.news-card:hover{background:#f5f7fa}
.news-card .date{color:#1B5FA8;font-size:13px;margin-bottom:5px}
.news-card h4{font-size:16px;color:#333;margin-bottom:8px}
.news-card p{color:#999;font-size:13px;line-height:1.6}
.news-card.featured{grid-column:1/-1;background:#f5f7fa;border-radius:8px;padding:30px;display:flex;gap:25px;align-items:center}
.news-card.featured .icon{font-size:40px}

/* ========== Factory ========== */

/* ========== Contact ========== */
.contact{padding-bottom:60px}
.contact .wrap{max-width:1200px;margin:0 auto;padding:0 15px;display:grid;grid-template-columns:1fr 1fr;gap:40px}
.contact-info h4{font-size:22px;color:#1B5FA8;margin-bottom:20px}
.contact-info .info-item{display:flex;align-items:flex-start;gap:12px;margin-bottom:18px}
.contact-info .info-item .ico{font-size:20px;min-width:24px}
.contact-info .info-item .txt{color:#666;font-size:15px}
.contact-info .info-item .txt strong{display:block;color:#333;font-size:16px;margin-bottom:2px}
.contact-form .admin-form-group{margin-bottom:5px}
.contact-form .admin-form-group label{display:block;margin-bottom:6px;color:#555;font-size:14px}
.contact-form input,.contact-form textarea{width:100%;padding:12px 15px;margin-bottom:15px;border:1px solid #ddd;border-radius:4px;font-size:14px;font-family:inherit;outline:none;transition:.3s;box-sizing:border-box}
.contact-form select{margin-bottom:15px;box-sizing:border-box}
.contact-form input:focus,.contact-form textarea:focus{border-color:#1B5FA8;box-shadow:0 0 5px rgba(27,95,168,.2)}
.contact-form textarea{height:120px;resize:vertical}
.contact-form .submit{background:#1B5FA8;color:#fff;border:none;padding:12px 40px;font-size:16px;border-radius:4px;cursor:pointer;transition:.3s}
.contact-form .submit:hover{background:#2A6CA8}

/* ========== Footer ========== */
footer{background:#173A5C;color:#fff;padding:40px 0 0}
footer .wrap{max-width:1200px;margin:0 auto;padding:0 15px;display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
footer h5{font-size:16px;margin-bottom:15px;padding-bottom:10px;border-bottom:2px solid rgba(255,255,255,.2)}
footer ul{list-style:none}
footer ul li{margin-bottom:8px}
footer ul li a{color:rgba(255,255,255,.85);text-decoration:none;font-size:13px;transition:.3s}
footer ul li a:hover{color:#fff}
footer .qrcode{text-align:center;padding:15px}
footer .qrcode img{width:100px;height:100px;background:#fff;padding:5px;border-radius:4px}
footer .qrcode p{margin-top:8px;font-size:12px;opacity:.7}
footer .copyright{grid-column:1/-1;text-align:center;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);margin-top:20px;font-size:12px;opacity:.7}
footer .copyright a{color:rgba(255,255,255,.7)}

/* ===== 企业优势/资质卡片美化 ===== */
.adv-grid > div{transition:transform .25s,box-shadow .25s;border:1px solid #eef0f3}
.adv-grid > div:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(27,95,168,.12)}
.cert-grid > div{transition:transform .25s,box-shadow .25s}
.cert-grid > div:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(27,95,168,.12)}


/* ===== 顶部栏右侧（搜索+电话） ===== */
.top-right{display:flex;align-items:center;gap:24px}
/* ===== 搜索框（导航栏内） ===== */
.nav-search{position:relative;display:flex;align-items:center;margin-left:16px;padding:6px 0}
.nav-search input{width:200px;padding:7px 60px 7px 32px;border:1px solid rgba(255,255,255,.4);border-radius:6px;font-size:13px;outline:none;background:rgba(255,255,255,.25);transition:.3s;color:#fff}
.nav-search input::placeholder{color:rgba(255,255,255,.85)}
.nav-search input:focus{width:240px;background:#fff;color:#333;border-color:#fff}
.nav-search input:focus::placeholder{color:#9aa7b8}
.nav-search-icon{position:absolute;left:10px;color:rgba(255,255,255,.8);pointer-events:none}
.nav-search-btn{position:absolute;right:3px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#E8832A,#F59E0B);color:#fff;border:none;border-radius:4px;padding:5px 12px;font-size:12px;cursor:pointer;transition:.3s}
.nav-search-btn:hover{background:linear-gradient(135deg,#d97706,#E8832A)}
.search-dropdown{display:none;position:absolute;top:44px;right:0;width:340px;background:#fff;border:1px solid #e5eef9;border-radius:10px;box-shadow:0 8px 30px rgba(0,0,0,.12);z-index:1000;max-height:420px;overflow-y:auto}
.search-item{display:flex;align-items:center;gap:10px;padding:10px 14px;text-decoration:none;color:#333;border-bottom:1px solid #f2f5f9;transition:.2s}
.search-item:hover{background:#f0f6ff}
.search-type{width:26px;height:26px;border-radius:6px;background:#1B5FA8;color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.search-text{display:flex;flex-direction:column;min-width:0}
.search-text em{font-style:normal;font-size:14px;color:#333;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.search-text small{font-size:12px;color:#999;margin-top:2px}
.search-empty{padding:20px;text-align:center;color:#999;font-size:13px}

/* ===== 搜索条（导航栏下方，手机端显示） ===== */
.search-bar{display:none;background:#f5f8fc;border-bottom:1px solid #e8eef5;position:sticky;top:0;z-index:999}
.search-bar .wrap{max-width:1200px;margin:0 auto;padding:10px 15px;display:flex;justify-content:center;align-items:center;gap:10px}
.search-bar .hamburger{display:none;cursor:pointer;padding:8px 4px;flex-shrink:0}
.search-bar .hamburger span{display:block;width:24px;height:3px;background:#1B5FA8;margin:5px 0;border-radius:2px}
.search-bar .nav-search{position:relative;display:flex;align-items:center;width:100%;max-width:520px}
.search-bar .nav-search input{width:100%;padding:9px 60px 9px 36px;border:1px solid #1B5FA8;border-radius:6px;font-size:13px;outline:none;background:#fff;color:#333;transition:.3s}
.search-bar .nav-search input::placeholder{color:#8a97a8}
.search-bar .nav-search input:focus{border-color:#E8832A;box-shadow:0 0 0 3px rgba(232,131,42,.15)}
.search-bar .nav-search-icon{left:12px;color:#1B5FA8;pointer-events:none}
.search-bar .nav-search-btn{position:absolute;right:4px;top:50%;transform:translateY(-50%);background:linear-gradient(135deg,#1B5FA8,#2A6CA8);color:#fff;border:none;border-radius:4px;padding:6px 14px;font-size:12px;cursor:pointer}
.search-bar .search-dropdown{top:44px}

/* ===== 手机端侧边菜单搜索框 ===== */
.sidebar-search{position:relative;padding:12px 14px;background:#f5f8fc;border-bottom:1px solid #e8eef5}
.sidebar-search .nav-search-icon{left:24px;color:#8a97a8}
.sidebar-search input{width:100%;padding:9px 12px 9px 34px;border:1px solid #dbe3ee;border-radius:8px;font-size:13px;outline:none;background:#fff;color:#333;box-sizing:border-box}
.sidebar-search input:focus{border-color:#1B5FA8}
.sidebar-search .search-dropdown{top:52px;left:14px;right:14px;width:auto;min-width:0}

/* ===== 手机端侧边菜单 ===== */
.hamburger{display:none;cursor:pointer;padding:8px 4px;flex-shrink:0;order:-1}
.hamburger span{display:block;width:24px;height:3px;background:#1B5FA8;margin:5px 0;border-radius:2px;transition:.3s}
.sidebar-mask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:2000;opacity:0;transition:opacity .3s}
.sidebar-mask.open{display:block;opacity:1}
.sidebar{position:fixed;top:0;left:0;width:280px;height:100%;background:#fff;z-index:2001;transform:translateX(-100%);transition:transform .3s;overflow-y:auto;box-shadow:2px 0 20px rgba(0,0,0,.15)}
.sidebar.open{transform:translateX(0)}
.sidebar-head{position:relative;padding:16px;background:#fff;border-bottom:1px solid #eee}
.sidebar-logo{display:block;width:100%;height:44px;object-fit:contain;padding:6px 12px;background:#fff;box-sizing:border-box}
.sidebar ul{list-style:none;margin:0;padding:8px 0}
.sidebar ul li a{display:block;padding:14px 20px;color:#333;text-decoration:none;font-size:15px;border-bottom:1px solid #f0f2f5;transition:.2s}
.sidebar ul li a:hover,.sidebar ul li a.active{background:#f0f6ff;color:#1B5FA8}
.sidebar-tel{display:flex;align-items:center;gap:12px;margin:14px 14px;padding:14px 16px;border-radius:12px;background:linear-gradient(135deg,#1B5FA8,#2A6CA8);color:#fff!important;text-decoration:none;box-shadow:0 4px 14px rgba(27,95,168,.3)}
.sidebar-tel-icon{flex-shrink:0;color:#FFD75E}
.sidebar-tel-text{display:flex;flex-direction:column;line-height:1.3}
.sidebar-tel-text em{font-style:normal;font-size:11px;color:rgba(255,255,255,.75)}
.sidebar-tel-text strong{font-size:18px;font-weight:bold;color:#fff;letter-spacing:.5px}
.sidebar .sidebar-sub{padding:0 0 6px 20px;display:none}
.sidebar .sidebar-sub a{font-size:13px;padding:9px 16px;color:#666;border-bottom:none}
.sidebar .sidebar-sub a:hover{color:#1B5FA8;background:none}
.sidebar .sidebar-toggle{display:flex;justify-content:space-between;align-items:center}
.sidebar .arrow{color:#1B5FA8;font-size:18px;font-weight:bold;transition:.2s;padding:0 6px}

/* ===== 手机端浮动拨号按钮 ===== */
.float-call{display:none;position:fixed;right:16px;bottom:24px;z-index:9999;width:58px;height:58px;border-radius:50%;background:linear-gradient(135deg,#1B5FA8,#3E8FD9);box-shadow:0 4px 16px rgba(27,95,168,.45);align-items:center;justify-content:center;text-decoration:none}
.float-call-icon{font-size:26px;line-height:1}
@media (max-width:768px){
  .float-call{display:flex}
}

/* ========== Responsive ========== ========== */
@media (max-width:768px){
  .top-right{gap:8px}
  .tel-label{display:none}
  .tel-num{font-size:15px}
  .top-bar{padding:10px 0}
  .top-bar .wrap{flex-direction:row;justify-content:space-between;align-items:center;gap:8px}
  .logo-img{height:30px}
  .tel{border-left:2px solid #1B5FA8;padding-left:10px;align-items:flex-end}
  .tel-label{font-size:10px}
  .tel-num{font-size:18px;font-weight:700}
  .hamburger{display:block}
  nav{display:none}
  .search-bar .wrap{justify-content:center}
  .search-bar{display:block}
  .search-bar .wrap{justify-content:flex-start}
  .search-bar .hamburger{display:block}
  .search-bar .nav-search{max-width:none;width:100%;flex:1}
  nav .nav-search{display:none}
  .banner{height:300px}
  .banner .slide h2{font-size:24px}
  .banner .slide p{font-size:14px}
  /* 产品分类tab：换行居中 */
  .prod-cats{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:20px}
  .prod-cats a{margin:0!important}
  /* 产品卡2列 */
  .prod-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .prod-card .pic{height:140px}
  .prod-card .info{padding:10px}
  .prod-card h4{font-size:14px}
  .case-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr!important;gap:25px!important}
  .contact-grid{grid-template-columns:1fr!important;gap:30px!important}
  .scene-grid{grid-template-columns:1fr!important;gap:15px!important}
  .case-meta{grid-template-columns:1fr!important}
  .factory-hero{grid-template-columns:1fr!important;gap:25px!important}
  .factory-hero img{height:220px!important}
  .adv-grid{grid-template-columns:repeat(2,1fr)!important;gap:15px!important}
  .cert-grid{grid-template-columns:1fr!important;gap:15px!important}
  .detail-grid{grid-template-columns:1fr!important;gap:20px!important}
  .detail-grid img{height:240px!important}
  .detail-grid a[target="_blank"] img{height:auto!important}
  section[style*="margin-top:50px"] div[style*="repeat(auto-fill"]{grid-template-columns:1fr!important}
  .news-grid{grid-template-columns:1fr}
  .about .wrap{grid-template-columns:1fr}
  .contact .wrap{grid-template-columns:1fr}
  footer .wrap{grid-template-columns:repeat(2,1fr)}
}

/* ===== 图片放大lightbox ===== */
#lightboxMask{display:none;position:fixed;inset:0;background:rgba(0,0,0,.82);z-index:3000;align-items:center;justify-content:center;cursor:zoom-out}
#lightboxMask.open{display:flex}
#lightboxImg{max-width:92vw;max-height:88vh;object-fit:contain;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.5);cursor:zoom-in;transition:transform .1s;user-select:none;-webkit-user-select:none}
#lightboxHint{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:rgba(255,255,255,.15);color:#fff;font-size:13px;padding:8px 18px;border-radius:20px;backdrop-filter:blur(4px);pointer-events:none;z-index:3001}

/* ========== 设计增强 v2（整体质感升级） ========== */
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
::selection{background:#1B5FA8;color:#fff}
::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-thumb{background:#b8c9dd;border-radius:4px}
::-webkit-scrollbar-thumb:hover{background:#1B5FA8}
::-webkit-scrollbar-track{background:#f0f3f7}

/* 导航：毛玻璃 + 阴影 + 链接动效 */
nav{background:rgba(23,58,92,.96);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 4px 20px rgba(15,40,70,.18)}
nav ul li a{position:relative;font-weight:500;letter-spacing:.5px}
nav ul li a::after{content:"";position:absolute;left:50%;bottom:8px;width:0;height:2px;background:linear-gradient(90deg,#E8832A,#F59E0B);transition:width .3s,left .3s;border-radius:2px}
nav ul li a:hover::after,nav ul li a.active::after{width:40%;left:30%}
nav ul li a:hover,nav ul li a.active{background:rgba(255,255,255,.08)}

/* Hero：光斑装饰 + 质感标题 */
.banner .slide h2{text-shadow:0 4px 18px rgba(0,0,0,.25);letter-spacing:3px}
.banner .slide p{letter-spacing:.5px}
.banner .slide::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.14),transparent 65%);top:-160px;right:-100px;z-index:1}
.banner .slide::after{content:"";position:absolute;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(245,158,11,.16),transparent 65%);bottom:-140px;left:-80px;z-index:1}
.banner .slide .btn{border-radius:50px;box-shadow:0 6px 20px rgba(0,0,0,.2);transition:transform .3s,box-shadow .3s}
.banner .slide .btn:hover{transform:translateY(-2px);box-shadow:0 10px 28px rgba(0,0,0,.28);background:#fff}

/* 区块标题：金色装饰 */
.sec-title h3,.sec-title h1{position:relative;letter-spacing:2px}
.sec-title .icon-line{height:4px;width:56px;border-radius:3px;background:linear-gradient(90deg,#1B5FA8,#3E8FD9)}
.sec-title .icon-line::after{content:"";display:block;width:18px;height:4px;background:linear-gradient(90deg,#E8832A,#F59E0B);border-radius:3px;margin-left:38px}

/* 产品卡片：圆角+柔和阴影+hover高亮 */
.prod-card{border-radius:14px;overflow:hidden;transition:transform .35s cubic-bezier(.2,.8,.3,1),box-shadow .35s}
.prod-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(27,95,168,.16)}
.prod-card .img{overflow:hidden;background:#fff}
.prod-card .img img{transition:transform .5s ease}
.prod-card:hover .img img{transform:scale(1.05)}
.prod-card .info .more{border-radius:6px;transition:all .3s}

/* 案例卡片同步 */
.case-card{border-radius:14px;overflow:hidden;transition:transform .35s,box-shadow .35s}
.case-card:hover{transform:translateY(-6px);box-shadow:0 14px 34px rgba(0,0,0,.14)}
.case-card img{transition:transform .5s ease}
.case-card:hover img{transform:scale(1.04)}

/* 按钮统一样式 */
.btn-ghost,.side-btn,.contact-form .submit{transition:transform .25s,box-shadow .25s}
.btn-ghost:hover,.side-btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(232,131,42,.35)}

/* 页脚：深蓝渐变 + 金色顶线 */
footer{position:relative;background:linear-gradient(180deg,#16324e,#10263c)}
footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,#1B5FA8,#E8832A,#F59E0B)}

/* 通用卡片质感 */
.side-box{border-radius:14px;transition:box-shadow .3s}
.side-box:hover{box-shadow:0 6px 20px rgba(27,95,168,.1)}

/* 说明书记录卡 */
/* ========== 产品卡片图片 v3（第一版立体感 + 方框包裹图片） ========== */
.prod-card .pic,.prod-card .img{background:linear-gradient(180deg,#f2f6fb 0%,#ffffff 70%)}
.prod-card .pic::after,.prod-card .img::after{display:none}
.prod-card .pic img,.prod-card .img img{max-width:84%;max-height:190px;width:auto;height:auto;display:block;margin:auto;border-radius:10px;border:1px solid #e8edf4;box-shadow:0 10px 22px rgba(27,95,168,.18);background:#fff;transform:scale(1);filter:none;transition:transform .45s cubic-bezier(.2,.8,.3,1),box-shadow .45s}
.prod-card:hover .pic img,.prod-card:hover .img img{transform:scale(1.04);box-shadow:0 16px 30px rgba(27,95,168,.26)}
@media(max-width:768px){.prod-card .pic img,.prod-card .img img{max-height:150px}}

/* ========== 产品卡片图片 v9（无留白，图片直出+阴影） ========== */
.prod-card .pic img,.prod-card .img img{padding:0;border:none;border-radius:8px;box-shadow:0 8px 20px rgba(27,95,168,.16)}

/* ========== 产品卡片图片 v10（直角+阴影） ========== */
.prod-card .pic img,.prod-card .img img{border-radius:0}

/* 立即询价按钮 */
.quote-btn{display:inline-block;background:#1B5FA8;color:#fff !important;padding:9px 0;border-radius:6px;font-size:13px;text-decoration:none;transition:.3s}
.quote-btn:hover{background:#C9A227}
.prod-card .more{display:inline-block;background:#f0f4fa;color:#1B5FA8;padding:9px 0;border-radius:6px;font-size:13px;text-decoration:none}
@media(max-width:768px){.quote-btn,.prod-card .more{font-size:14px;padding:10px 0}}

/* 移动端 banner 降高 */
@media(max-width:768px){
  .banner{height:260px}
  .banner .slide h2{font-size:24px !important}
  .banner .slide p{font-size:14px !important}
}