/*
Theme Name: 中科擎天企业主题
Theme URI: https://zkqtt.com
Author: OpenClaw
Description: 中科擎天科技企业官网主题
Version: 1.0.0
Text Domain: zkqt-theme
*/
:root{--primary:#0052D9;--secondary:#00D4AA;--dark:#0D1B2A;--gradient:linear-gradient(135deg,#0052D9,#00D4AA)}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:#1A1A2E;line-height:1.6}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
a{color:var(--primary);text-decoration:none;transition:.3s}
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(13,27,42,.95);backdrop-filter:blur(10px)}
.nav-wrap{display:flex;justify-content:space-between;align-items:center;padding:15px 0}
.site-logo img{height:50px}
.main-nav ul{display:flex;list-style:none;gap:30px}
.main-nav a{color:#fff;font-weight:500;padding:10px 0;position:relative}
.main-nav a::after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--gradient);transition:.3s}
.main-nav a:hover::after{width:100%}
.hero{min-height:100vh;background:var(--dark);display:flex;align-items:center;justify-content:center;position:relative}
.hero-bg{position:absolute;inset:0;background-size:cover;opacity:.3}
.hero-content{position:relative;z-index:2;text-align:center;color:#fff;padding:80px 20px}
.hero-title{font-size:48px;font-weight:700;margin-bottom:20px;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero-subtitle{font-size:24px;margin-bottom:40px;opacity:.9}
.hero-btn{display:inline-block;padding:15px 40px;background:var(--gradient);color:#fff;font-size:18px;font-weight:600;border-radius:50px;transition:.3s}
.section{padding:100px 0}
.section-title{font-size:36px;font-weight:700;text-align:center;margin-bottom:60px}
.section-title::after{content:"";display:block;width:60px;height:4px;background:var(--gradient);margin:20px auto 0;border-radius:2px}
.section-dark{background:var(--dark);color:#fff}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.card{background:#F8F9FA;border-radius:16px;overflow:hidden;transition:.3s}
.card:hover{transform:translateY(-10px);box-shadow:0 20px 40px rgba(0,0,0,.1)}
.card-img{height:200px;background-size:cover;background-position:center}
.card-body{padding:30px}
.card-title{font-size:22px;font-weight:600;margin-bottom:15px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;text-align:center}
.stat-num{font-size:48px;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.site-footer{background:var(--dark);color:#fff;padding:60px 0 30px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.copyright{text-align:center;padding-top:30px;border-top:1px solid rgba(255,255,255,.1);opacity:.7}
@media(max-width:992px){.card-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.hero-title{font-size:32px}.card-grid{grid-template-columns:1fr}.main-nav{display:none}.footer-grid{grid-template-columns:1fr}}

/* Mobile Menu */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
    z-index: 1001;
}
.mobile-toggle span {
    width: 25px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
}
.mobile-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.mobile-toggle.active span:nth-child(2) {
    opacity: 0;
}
.mobile-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 27, 42, 0.98);
    padding: 20px;
    z-index: 999;
    overflow-y: auto;
}
.mobile-menu.active {
    display: block;
}
.mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.mobile-menu li {
    border-bottom: 1px solid rgba(255,255,255,0.1);
}
.mobile-menu a {
    display: block;
    color: #fff;
    padding: 18px 15px;
    font-size: 16px;
    transition: background 0.3s;
}
.mobile-menu a:hover {
    background: rgba(0, 82, 217, 0.3);
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
    .main-nav {
        display: none;
    }
    .nav-wrap {
        position: relative;
    }
    body.menu-open {
        overflow: hidden;
    }
}

/* Fix: Dark section card text color */
.section-dark .card {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
}
.section-dark .card:hover {
    background: rgba(255,255,255,0.15);
    transform: translateY(-10px);
}
.section-dark .card-title {
    color: #fff;
}
.section-dark .card-desc {
    color: rgba(255,255,255,0.8);
}
.section-dark .card-link {
    color: #00D4AA;
}

/* Fix: Mobile content padding for fixed header */
main {
    padding-top: 70px;
}

/* Fix: Mobile card grid layout */
@media (max-width: 768px) {
    main {
        padding-top: 80px;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .card {
        margin: 0;
    }
    
    .card-img {
        height: 160px;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .card-title {
        font-size: 18px;
        margin-bottom: 10px;
    }
    
    .card-desc {
        font-size: 14px;
        margin-bottom: 15px;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title {
        font-size: 24px;
        margin-bottom: 30px;
        padding: 0 15px;
    }
    
    /* 产品中心页面优化 */
    .container > p {
        padding: 0 15px;
    }
    
    /* 列表样式优化 */
    .card-body ul {
        padding-left: 15px;
        font-size: 13px;
    }
    
    /* 新闻页面优化 */
    article {
        flex-direction: column !important;
        gap: 15px !important;
        padding: 20px !important;
    }
    
    article > div:first-child {
        width: 100% !important;
        height: 150px !important;
    }
}

/* 平板适配 */
@media (min-width: 769px) and (max-width: 992px) {
    .card-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

/* News page responsive */
@media (max-width: 768px) {
    .news-tabs {
        gap: 8px !important;
    }
    .news-tabs a {
        padding: 8px 16px !important;
        font-size: 13px !important;
    }
    .news-item {
        flex-direction: column !important;
        padding: 15px !important;
    }
    .news-img {
        width: 100% !important;
        height: 120px !important;
    }
    .news-content h3 {
        font-size: 16px !important;
    }
}

/* About page responsive */
@media (max-width: 768px) {
    .container > div > div {
        padding: 0 !important;
    }
    .container h2 {
        font-size: 18px !important;
    }
}

/* Contact page responsive */
@media (max-width: 768px) {
    form {
        padding: 20px !important;
    }
    input, textarea {
        font-size: 16px !important;
    }
}

/* Hide desktop nav on mobile */
@media (max-width: 768px) {
    .main-nav {
        display: none !important;
    }
    .mobile-toggle {
        display: flex !important;
    }
}