/* ===== 国力化工 - 全局基础样式 ===== */
/* 从 template/cms/default/base.html 提取 */

*{margin:0;padding:0;box-sizing:border-box;-moz-box-sizing:border-box;-webkit-box-sizing:border-box;}
a{text-decoration:none;color:#fff;}
li{list-style:none;}
img{vertical-align:middle;max-width:100%;}
body{font-family:"Microsoft YaHei","PingFang SC","Helvetica Neue",Helvetica,Tahoma,sans-serif;font-size:14px;color:#e5e5e5;background:linear-gradient(135deg, #5a3d7a 0%, #3d7a6e 100%);min-height:100vh;}

/*暗色主题变量定义*/
:root{
    --primary:#3b82f6;
    --primary-dark:#2563eb;
    --accent:#10b981;
    --accent-dark:#059669;
    --text-dark:#ffffff;
    --text-light:#a0aec0;
    --text-gray:#6b7280;
    --bg-light:#2b23352e;
    --bg-dark:#3d2a5a;
    --border:#7850a0;
    --card-bg:#36343985;
    --card-hover:#534f57;
}

.container{width:1200px;max-width:100%;margin:0 auto;padding:0 20px;}

/*顶部导航*/
.top-bar{background:#0d0d0d;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:1002;}
.top-bar .container{display:flex;justify-content:space-between;align-items:center;height:40px;}
.top-bar-left{font-size:13px;color:var(--text-light);}
.top-bar-left span{margin-right:20px;}
.top-bar-left i{color:var(--primary);margin-right:5px;}
.top-bar-right{font-size:13px;}
.top-bar-right a{color:var(--text-light);margin-left:15px;transition:color .3s;}
.top-bar-right a:hover{color:var(--primary);}

/*主导航*/
.header{background:rgba(13, 13, 13, 0.95);padding:0;position:sticky;top:0;z-index:1001;box-shadow:0 2px 10px rgba(0,0,0,.5);backdrop-filter:blur(10px);}
.header .container{display:flex;justify-content:space-between;align-items:center;height:80px;}

/*搜索栏*/
.search-bar{background:linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);padding:15px 0;border-bottom:1px solid var(--border);position:sticky;top:80px;z-index:1000;}
.search-bar .container{max-width:1200px;margin:0 auto;padding:0 20px;}
.search-form{margin:0;}
.search-input-wrapper{display:flex;max-width:700px;margin:0 auto;box-shadow:0 2px 10px rgba(0,0,0,.5);border-radius:50px;overflow:hidden;background:#1a1a2e;}
.search-input{flex:1;padding:12px 25px;font-size:15px;border:none;outline:none;background:transparent;color:#fff;}
.search-input::placeholder{color:#6b7280;}
.search-btn{padding:12px 20px;border:none;color:#fff;cursor:pointer;transition:all 0.3s;display:flex;align-items:center;justify-content:center;gap:6px;font-size:14px;font-weight:500;}
.ai-search-btn{background:linear-gradient(135deg, #10b981 0%, #059669 100%);border-radius:25px 0 0 25px;}
.ai-search-btn:hover{background:linear-gradient(135deg, #059669 0%, #047857 100%);}
.site-search-btn{background:linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);border-radius:0 25px 25px 0;}
.site-search-btn:hover{background:linear-gradient(135deg, #2563eb 0%, #1e40af 100%);}
.search-btn i{font-size:18px;}

.logo{display:flex;align-items:center;}
.logo img{width:500px;height:80px;object-fit:contain;}
.logo-text{font-size:20px;font-weight:bold;color:var(--primary);margin-left:10px;}

.main-nav{display:flex;align-items:center;}
.main-nav li{position:relative;}
.main-nav a{display:block;padding:28px 25px;font-size:15px;color:#e5e5e5;transition:all .3s;}
.main-nav a:hover,.main-nav a.active{color:var(--primary);background:rgba(59, 130, 246, 0.1);}
.main-nav a::after{content:'';position:absolute;bottom:0;left:50%;width:0;height:3px;background:var(--primary);transition:all .3s;transform:translateX(-50%);}
.main-nav a:hover::after,.main-nav a.active::after{width:80%;}

/*下拉菜单*/
.dropdown{position:absolute;top:100%;left:50%;transform:translateX(-50%);background:#1a1a2e;min-width:180px;box-shadow:0 10px 30px rgba(0,0,0,.5);border-radius:5px;opacity:0;visibility:hidden;transition:all .3s;z-index:1000;padding:15px 0;}
.dropdown::before{content:'';position:absolute;top:-8px;left:50%;transform:translateX(-50%);border-left:8px solid transparent;border-right:8px solid transparent;border-bottom:8px solid #1a1a2e;}
.main-nav li:hover .dropdown{opacity:1;visibility:visible;}
.dropdown a{display:block;padding:12px 20px;font-size:14px;color:#e5e5e5;transition:all .3s;}
.dropdown a:hover{background:var(--primary);color:#fff;}

/*多列下拉菜单*/
.dropdown-multi{min-width:400px;padding:15px;}
.dropdown-all{background:var(--bg-light);color:var(--primary);font-weight:bold;border-radius:5px;margin-bottom:10px;}
.dropdown-all:hover{background:var(--primary);color:#fff;}
.dropdown-divider{height:1px;background:var(--border);margin:10px 0;}
.dropdown-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:5px;}
.dropdown-grid a{padding:10px 15px;border-radius:5px;}
.dropdown-grid a:hover{background:var(--primary);color:#fff;}

/*Banner*/
.banner{height:500px;background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);position:relative;overflow:hidden;}
.banner-content{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;color:#fff;z-index:2;width:100%;}
.banner-title{font-size:56px;font-weight:bold;margin-bottom:20px;text-shadow:0 2px 10px rgba(0,0,0,.5);}
.banner-subtitle{font-size:24px;opacity:0.9;margin-bottom:40px;}
.banner-btn{display:inline-block;padding:15px 50px;background:var(--accent);color:#fff;font-size:16px;border-radius:50px;transition:all .3s;}
.banner-btn:hover{background:var(--accent-dark);color:#fff;transform:translateY(-3px);box-shadow:0 10px 30px rgba(16, 185, 129, 0.3);}
.banner-decoration{position:absolute;bottom:0;left:0;right:0;height:80px;background:linear-gradient(to top,#0a0a0a,transparent);}

/*统计数据*/
.stats{background:transparent;padding:60px 0;margin-top:-60px;position:relative;z-index:3;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;}
.stat-item{text-align:center;padding:30px;background:#1a1a2e;border-radius:10px;box-shadow:0 5px 30px rgba(0,0,0,.3);transition:all .3s;border:1px solid var(--border);}
.stat-item:hover{transform:translateY(-5px);box-shadow:0 15px 40px rgba(59, 130, 246, 0.2);}
.stat-num{font-size:48px;font-weight:bold;color:var(--primary);margin-bottom:10px;}
.stat-label{font-size:16px;color:var(--text-light);}

/*内页导航*/
.page-nav{background:linear-gradient(135deg, #3d2a5a 0%, #2d1b4e 100%);padding:15px 0;border-bottom:1px solid rgba(59, 130, 246, 0.2);}
.page-nav .container{display:flex;align-items:center;justify-content:space-between;}
.page-nav-title{font-size:24px;color:#fff;font-weight:bold;}
.page-nav-links{font-size:14px;}
.page-nav-links a{color:rgba(255,255,255,.7);margin-right:15px;transition:color .3s;}
.page-nav-links a:hover{color:#3b82f6;}
.page-nav-links span{color:rgba(255,255,255,.5);margin-right:15px;}

/*内容区域*/
.section{padding:80px 0;}
.section-title{text-align:center;margin-bottom:50px;}
.section-title h2{font-size:36px;color:var(--text-dark);font-weight:bold;margin-bottom:15px;}
.section-title p{font-size:16px;color:var(--text-light);}
.section-title::after{content:'';display:block;width:60px;height:4px;background:var(--primary);margin:20px auto 0;border-radius:2px;}

/*产品卡片*/
.product-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.product-card{background:#1a1a2e;border-radius:10px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.3);transition:all .3s;border:1px solid var(--border);}
.product-card:hover{transform:translateY(-10px);box-shadow:0 20px 50px rgba(59, 130, 246, 0.2);}
.product-img{height:220px;overflow:hidden;background:#16213e;}
.product-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.product-card:hover .product-img img{transform:scale(1.1);}
.product-info{padding:25px;}
.product-info h3{font-size:18px;color:var(--text-dark);margin-bottom:10px;}
.product-info p{font-size:14px;color:var(--text-light);line-height:1.6;margin-bottom:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.product-link{color:var(--primary);font-size:14px;font-weight:500;}
.product-link:hover{color:var(--accent);}

/*新闻卡片*/
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;}
.news-card{background:#1a1a2e;border-radius:10px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.3);transition:all .3s;border:1px solid var(--border);}
.news-card:hover{transform:translateY(-5px);box-shadow:0 15px 40px rgba(0,0,0,.4);}
.news-img{height:180px;overflow:hidden;background:#16213e;}
.news-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s;}
.news-card:hover .news-img img{transform:scale(1.1);}
.news-content{padding:20px;}
.news-date{font-size:13px;color:var(--text-gray);margin-bottom:10px;}
.news-content h3{font-size:16px;color:var(--text-dark);margin-bottom:10px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-content p{font-size:14px;color:var(--text-light);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/*关于区域*/
.about-section{background:var(--bg-light);}
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center;}
.about-content h3{font-size:28px;color:var(--primary);margin-bottom:20px;}
.about-content p{font-size:15px;color:var(--text-light);line-height:2;margin-bottom:30px;}
.about-img{height:350px;background:var(--bg-light);border-radius:10px;overflow:hidden;}
.about-img img{width:100%;height:100%;object-fit:cover;}

/*CTA区域*/
.cta-section{background:linear-gradient(135deg,#1a1a2e 0%,#16213e 100%);padding:80px 0;text-align:center;color:#fff;border-top:1px solid var(--border);}
.cta-section h2{font-size:36px;font-weight:bold;margin-bottom:20px;}
.cta-section p{font-size:18px;color:var(--text-light);margin-bottom:30px;}
.cta-btn{display:inline-block;padding:15px 50px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);color:#fff;font-size:16px;font-weight:500;border-radius:50px;transition:all .3s;}
.cta-btn:hover{background:linear-gradient(135deg,var(--accent-dark) 0%,#047857 100%);color:#fff;transform:translateY(-3px);box-shadow:0 10px 30px rgba(16, 185, 129, 0.3);}

/*Footer*/
footer{background:#0d0d0d;color:#fff;padding:60px 0 30px;border-top:1px solid var(--border);}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:50px;margin-bottom:50px;}
.footer-about h3{font-size:22px;margin-bottom:20px;color:#fff;}
.footer-about p{font-size:14px;color:var(--text-light);line-height:1.8;margin-bottom:20px;}
.footer-about .contact-item{display:flex;align-items:center;margin-bottom:10px;color:var(--text-light);font-size:14px;}
.footer-about .contact-item i{width:20px;color:var(--primary);margin-right:10px;}

.footer-links h4{font-size:16px;margin-bottom:20px;color:#fff;}
.footer-links ul{list-style:none;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:var(--text-light);transition:color .3s;}
.footer-links a:hover{color:var(--primary);}

.footer-bottom{border-top:1px solid var(--border);padding-top:30px;display:flex;justify-content:space-between;align-items:center;}
.footer-bottom p{font-size:13px;color:var(--text-gray);}
.footer-bottom a{color:var(--text-gray);}
.footer-bottom a:hover{color:var(--primary);}

/*响应式*/
@media(max-width:1200px){
    .container{width:100%;}
    .main-nav a{padding:28px 18px;font-size:14px;}
    .banner{height:400px;}
    .banner-title{font-size:42px;}
    .stats-grid{grid-template-columns:repeat(2,1fr);}
    .product-grid,.news-grid{grid-template-columns:repeat(2,1fr);}
    .footer-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:991px){
    .top-bar{padding:5px 0;}
    .top-bar .container{height:auto;}
    .top-bar-left span{font-size:12px;margin-right:10px;}
    .header{position:relative;}
    .header .container{height:60px;}
    .logo img{max-width:300px;height:50px;object-fit:contain;}
    .main-nav{display:none;}
    .mobile-menu-btn{display:block !important;}
    .search-input-wrapper{margin:0 15px;}
    .search-input{padding:10px 15px;font-size:14px;}
    .search-btn{padding:10px 20px;}
    .about-grid{grid-template-columns:1fr;}
    .about-img{height:250px;}
    body{padding-top:0;}
    .content-wrapper{grid-template-columns:1fr !important;}
    .sidebar{margin-bottom:30px;}
    .faq-grid{grid-template-columns:repeat(2,1fr);}
    .product-grid{grid-template-columns:repeat(2,1fr);}
}
@media(max-width:767px){
    .container{padding:0 15px;}
    .top-bar-left{display:none;}
    .banner{height:300px;}
    .banner-title{font-size:28px;}
    .banner-subtitle{font-size:16px;}
    .banner-btn{padding:12px 30px;font-size:14px;}
    .stats{margin-top:0;padding:40px 0;}
    .stats-grid{grid-template-columns:1fr 1fr;gap:15px;}
    .stat-item{padding:20px 10px;}
    .stat-num{font-size:32px;}
    .section{padding:50px 0;}
    .section-title h2{font-size:28px;}
    .product-grid,.news-grid,.faq-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;gap:30px;}
    .footer-bottom{flex-direction:column;text-align:center;gap:15px;}
    footer{padding:40px 0 20px;}
    .footer-about{margin-bottom:30px;}
    .data-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;}
    .data-table th,.data-table td{white-space:nowrap;}
}
@media(max-width:575px){
    .pagination{gap:3px;}
    .pagination a,.pagination span{padding:6px 12px;font-size:12px;}
    .pagination input[type="text"]{width:45px;padding:6px;}
    .sidebar-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
    .sidebar-list li{margin-bottom:0;}
}

/*移动端菜单按钮*/
.mobile-menu-btn{display:none;width:30px;height:30px;background:none;border:none;cursor:pointer;}
.mobile-menu-btn span{display:block;width:100%;height:3px;background:var(--primary);margin-bottom:5px;border-radius:2px;}
.mobile-menu-btn span:last-child{margin-bottom:0;}

/*分页*/
.pagination{text-align:center;margin-top:50px;}
.pagination a{display:inline-block;padding:10px 18px;margin:0 3px;background:rgba(26, 26, 46, 0.8);border:1px solid var(--border);border-radius:5px;color:var(--text-dark);transition:all .3s;}
.pagination a:hover,.pagination a.active{background:var(--primary);border-color:var(--primary);color:#fff;}

/*FAQ样式*/
.faq-list{margin-top:30px;}
.faq-item{background:rgba(26, 26, 46, 0.8);border-radius:10px;margin-bottom:20px;box-shadow:0 3px 15px rgba(0,0,0,.3);overflow:hidden;}
.faq-question{padding:20px 25px;font-size:16px;font-weight:500;color:var(--text-dark);cursor:pointer;display:flex;justify-content:space-between;align-items:center;border-left:4px solid var(--primary);}
.faq-question:hover{background:var(--bg-light);}
.faq-question i{transition:transform .3s;color:var(--primary);}
.faq-item.active .faq-question i{transform:rotate(180deg);}
.faq-answer{padding:0 25px;max-height:0;overflow:hidden;transition:all .3s;border-top:1px solid transparent;}
.faq-item.active .faq-answer{padding:20px 25px;max-height:500px;border-top-color:var(--border);}

/*表格样式*/
.data-table{width:100%;border-collapse:collapse;background:rgba(26, 26, 46, 0.8);border-radius:10px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.3);}
.data-table th{background:var(--primary);color:#fff;padding:15px 20px;text-align:left;font-weight:500;}
.data-table td{padding:15px 20px;border-bottom:1px solid var(--border);}
.data-table tr:hover td{background:var(--bg-light);}
.data-table tr:last-child td{border-bottom:none;}

/*左右布局*/
.content-wrapper{display:grid;grid-template-columns:280px 1fr;gap:40px;margin-top:50px;}
.sidebar{background:rgba(26, 26, 46, 0.8);border-radius:10px;overflow:hidden;box-shadow:0 5px 20px rgba(0,0,0,.3);height:fit-content;}
.sidebar-title{padding:20px 25px;background:var(--primary);color:#fff;font-size:18px;font-weight:bold;}
.sidebar-list{list-style:none;padding:0;margin:0;}
.sidebar-list li{border-bottom:1px solid var(--border);}
.sidebar-list li:last-child{border-bottom:none;}
.sidebar-list a{display:block;padding:15px 25px;color:var(--text-dark);font-size:15px;transition:all .3s;}
.sidebar-list a:hover{background:var(--primary);color:#fff;padding-left:30px;}
.sidebar-list a.active{background:var(--primary);color:#fff;border-left:3px solid var(--accent);}

.content-main{background:rgba(26, 26, 46, 0.8);border-radius:10px;padding:30px;box-shadow:0 5px 20px rgba(0,0,0,.3);}
.content-main-title{font-size:24px;color:var(--text-dark);margin-bottom:25px;padding-bottom:15px;border-bottom:2px solid var(--primary);}

@media(max-width:991px){
    .content-wrapper{grid-template-columns:1fr;}
    .sidebar{margin-bottom:30px;}
}