*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
html.spider-view *{visibility:visible!important;opacity:1!important}
body{font-family:'PingFang SC','Microsoft YaHei','WenQuanYi Micro Hei',sans-serif;color:#333;line-height:1.6;background:#fff}
a{text-decoration:none;color:inherit}
ul{list-style:none}
img{width:100%;height:100%;object-fit:cover;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.btn{display:inline-block;padding:12px 28px;border-radius:8px;font-weight:500;transition:all .3s;cursor:pointer;border:none;font-size:16px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{opacity:.9;transform:translateY(-2px)}
.btn-outline{background:transparent;border:2px solid #fff;color:#fff}
.btn-outline:hover{background:#fff;color:var(--primary)}
.btn-sm{padding:8px 20px;font-size:14px}
.btn-lg{padding:14px 36px;font-size:18px}
.section{padding:80px 0}
.section-title{text-align:center;margin-bottom:50px}
.section-title h2{font-size:36px;margin-bottom:12px;color:#222}
.section-title p{font-size:16px;color:#666}
.navbar{position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);box-shadow:0 2px 20px rgba(0,0,0,.08);z-index:1000;height:72px}
.nav-container{display:flex;justify-content:space-between;align-items:center;height:100%}
.logo{font-size:24px;font-weight:700;color:var(--primary)}
.nav-menu{display:flex;gap:32px}
.nav-menu a{color:#333;font-weight:500;transition:color .3s}
.nav-menu a:hover{color:var(--primary)}
.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer}
.hamburger span{width:24px;height:2px;background:#333;transition:all .3s}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(7px,-6px)}
.hero{position:relative;height:100vh;min-height:600px;margin-top:72px;overflow:hidden}
.hero-bg{position:absolute;top:0;left:0;width:100%;height:100%;aspect-ratio:16/7}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,0,0,.6),rgba(0,0,0,.4))}
.hero-content{position:relative;z-index:1;height:calc(100vh - 72px);display:flex;flex-direction:column;justify-content:center;color:#fff}
.hero-content h1{font-size:56px;margin-bottom:20px;max-width:700px}
.hero-content p{font-size:20px;margin-bottom:32px;max-width:600px;opacity:.9}
.hero-btns{display:flex;gap:16px}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{padding:32px 24px;border-radius:12px;background:#f8f9fa;text-align:center;transition:all .3s}
.feature-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px rgba(0,0,0,.08)}
.feature-icon{font-size:40px;color:var(--primary);margin-bottom:16px}
.feature-card h3{font-size:18px;color:#222}
.about-container{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-img{border-radius:16px;overflow:hidden;aspect-ratio:4/3}
.about-content h2{font-size:32px;margin-bottom:20px}
.about-content p{margin-bottom:16px;color:#555;font-size:16px}
.about-list{margin:24px 0}
.about-list li{margin-bottom:10px;color:#444}
.products{background:#f8f9fa}
.products-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.product-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s}
.product-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.12)}
.product-img{aspect-ratio:4/3;overflow:hidden}
.product-info{padding:24px}
.product-info h3{font-size:18px;margin-bottom:8px;color:#222}
.product-info p{font-size:14px;color:#666;margin-bottom:16px;line-height:1.6}
.stats{background:linear-gradient(135deg,var(--primary),var(--secondary));padding:60px 0;color:#fff}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;text-align:center}
.stat-num{font-size:48px;font-weight:700;margin-bottom:8px}
.stat-label{font-size:16px;opacity:.9}
.articles-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.article-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.06);transition:all .3s;color:inherit;display:block}
.article-card:hover{transform:translateY(-6px);box-shadow:0 12px 40px rgba(0,0,0,.12)}
.article-img{aspect-ratio:16/9;overflow:hidden}
.article-info{padding:24px}
.article-date{font-size:13px;color:#999;margin-bottom:10px}
.article-info h3{font-size:18px;margin-bottom:10px;color:#222;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-info p{font-size:14px;color:#666;line-height:1.7;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.read-more{color:var(--primary);font-size:14px;font-weight:500}
.cta{position:relative;padding:100px 0;overflow:hidden}
.cta-bg{position:absolute;top:0;left:0;width:100%;height:100%;aspect-ratio:16/3}
.cta::after{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(0,0,0,.7),rgba(0,0,0,.5))}
.cta-content{position:relative;z-index:1;text-align:center;color:#fff}
.cta-content h2{font-size:40px;margin-bottom:16px}
.cta-content p{font-size:18px;margin-bottom:32px;opacity:.9}
.faq-list{max-width:800px;margin:0 auto}
.faq-item{border:1px solid #eee;border-radius:12px;margin-bottom:16px;overflow:hidden}
.faq-q{padding:20px 24px;font-size:18px;font-weight:500;cursor:pointer;display:flex;justify-content:space-between;align-items:center;background:#fff;transition:all .3s}
.faq-q:hover{background:#f8f9fa}
.faq-arrow{transition:transform .3s;font-size:12px;color:#999}
.faq-item.active .faq-arrow{transform:rotate(180deg)}
.faq-a{padding:0 24px;max-height:0;overflow:hidden;transition:all .3s;color:#666;line-height:1.7}
.faq-item.active .faq-a{padding:0 24px 20px;max-height:300px}
.footer{background:#1a1a2e;color:#fff;padding:60px 0 0}
.footer-container{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-logo{font-size:24px;font-weight:700;margin-bottom:16px;color:#fff}
.footer-col p{color:rgba(255,255,255,.7);line-height:1.7;font-size:14px}
.footer-col h4{font-size:16px;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--primary);display:inline-block}
.footer-col ul li{margin-bottom:12px}
.footer-col ul li a{color:rgba(255,255,255,.7);font-size:14px;transition:all .3s}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;color:rgba(255,255,255,.5);font-size:13px}
.article-hero{padding:100px 0 40px;background:#f8f9fa}
.breadcrumb{font-size:14px;color:#666;margin-bottom:20px}
.breadcrumb a{color:var(--primary)}
.article-hero h1{font-size:36px;line-height:1.4;margin-bottom:16px}
.article-meta{font-size:14px;color:#999}
.article-detail{padding:40px 0 80px}
.article-detail .container{max-width:800px}
.article-cover{width:100%;border-radius:16px;aspect-ratio:16/9;margin-bottom:32px;overflow:hidden}
.article-detail p{font-size:17px;line-height:1.9;color:#333;margin-bottom:24px}
.article-content-img{width:100%;border-radius:12px;aspect-ratio:16/9;margin:32px 0;overflow:hidden}
.article-back{margin-top:40px;text-align:center}
@media (max-width:992px){
    .features-grid{grid-template-columns:repeat(2,1fr)}
    .products-grid,.articles-grid{grid-template-columns:repeat(2,1fr)}
    .stats-grid{grid-template-columns:repeat(2,1fr);gap:40px}
    .about-container{grid-template-columns:1fr;gap:40px}
    .footer-container{grid-template-columns:repeat(2,1fr);gap:30px}
    .product-img{height:220px}
    .article-img{height:200px}
}
@media (max-width:768px){
    .navbar{height:64px}
    .hero{margin-top:64px;height:auto;min-height:auto}
    .hero-content{height:auto;padding:80px 0}
    .hero-content h1{font-size:28px}
    .hero-content p{font-size:15px}
    .hero-bg{aspect-ratio:4/5}
    .nav-menu{position:fixed;top:64px;left:0;right:0;background:#fff;flex-direction:column;padding:20px;gap:20px;box-shadow:0 4px 20px rgba(0,0,0,.1);transform:translateY(-150%);transition:transform .3s}
    .nav-menu.active{transform:translateY(0)}
    .hamburger{display:flex}
    .section{padding:40px 0}
    .section-title h2{font-size:24px}
    .features-grid{grid-template-columns:repeat(2,1fr);gap:16px}
    .feature-card{padding:20px 16px}
    .feature-icon{font-size:28px}
    .feature-card h3{font-size:15px}
    .products-grid,.articles-grid{grid-template-columns:1fr}
    .article-card{display:block}
    .article-img{aspect-ratio:16/9;height:auto}
    .article-info h3{font-size:17px}
    .article-info p{font-size:14px;-webkit-line-clamp:3}
    .stats-grid{grid-template-columns:repeat(3,1fr);gap:20px}
    .stat-num{font-size:24px}
    .stat-label{font-size:12px}
    .cta{padding:60px 0}
    .cta-bg{aspect-ratio:4/3}
    .cta-content h2{font-size:24px}
    .about-img{aspect-ratio:4/3}
    .product-img{aspect-ratio:4/3;height:auto}
    .footer-container{grid-template-columns:repeat(2,1fr);gap:30px}
    .footer-col h4{font-size:15px}
    .footer-col p,.footer-col ul li a{font-size:13px}
    .article-hero{padding:80px 0 20px}
    .article-hero h1{font-size:24px}
    .article-content-img{aspect-ratio:16/9;height:200px}
}
@media (max-width:360px){
    .hero-content h1{font-size:26px}
    .hero-content p{font-size:14px}
    .hero-btns{flex-direction:column}
    .btn{width:100%;text-align:center}
    .stat-num{font-size:22px}
    .features-grid{gap:12px}
    .feature-card h3{font-size:14px}
    .article-info h3{font-size:16px}
    .article-info p{font-size:13px;-webkit-line-clamp:2}
    .footer-bottom{font-size:12px}
}

/* ========== 强制移动端单列大图修复 - 最高优先级覆盖所有冲突 ========== */
@media (max-width: 768px) {
    .articles-grid {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
    }
    .products-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 16px !important;
    }
    .article-card {
        flex-direction: column !important;
        display: block !important;
    }
    .article-card img, .article-card .article-cover img {
        width: 100% !important;
        aspect-ratio: 16/9 !important;
        height: auto !important;
        border-radius: 12px 12px 0 0 !important;
        object-fit: cover !important;
    }
    .article-card-body {
        padding: 16px !important;
        width: 100% !important;
        box-sizing: border-box !important;
    }
    .article-content img {
        width: 100% !important;
        aspect-ratio: 16/9 !important;
        height: auto !important;
        border-radius: 12px !important;
        margin: 16px 0 !important;
        object-fit: cover !important;
    }
}
@media (max-width: 360px) {
    .products-grid {
        grid-template-columns: 1fr !important;
    }
    .article-card h3 {
        font-size: 16px !important;
        line-height: 1.5 !important;
    }
    .article-card p {
        font-size: 13px !important;
        line-height: 1.6 !important;
        -webkit-line-clamp: 2 !important;
    }
}