/* ===== 全局 ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1565c0;--primary-dark:#0d47a1;--primary-light:#1e88e5;--secondary:#00897b;--accent:#e65100;--text:#333;--text-light:#666;--bg:#f8f9fa;--white:#fff;--border:#e0e0e0;--shadow:0 2px 15px rgba(0,0,0,.1);--radius:8px;--transition:.3s ease}
html{scroll-behavior:smooth}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Microsoft YaHei",sans-serif;color:var(--text);line-height:1.6;background:var(--bg)}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
a{text-decoration:none;color:var(--primary);transition:var(--transition)}
a:hover{color:var(--primary-dark)}
.btn{display:inline-block;padding:12px 28px;border-radius:30px;font-size:1rem;font-weight:500;cursor:pointer;transition:var(--transition);border:2px solid transparent;text-align:center}
.btn-primary{background:var(--primary);color:var(--white)!important;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark)}
.btn-outline{background:transparent;color:var(--white)!important;border-color:var(--white)}
.btn-outline:hover{background:var(--white);color:var(--primary)!important}
.btn-lg{padding:14px 40px;font-size:1.1rem}
.btn-block{width:100%}
.header{background:var(--white);box-shadow:0 2px 10px rgba(0,0,0,.08);position:sticky;top:0;z-index:1000}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{font-size:1.5rem;font-weight:700;color:var(--primary)!important}
.nav-menu{display:flex;list-style:none;gap:5px}
.nav-menu li a{padding:8px 18px;color:var(--text);border-radius:20px;font-size:.95rem;transition:var(--transition)}
.nav-menu li a:hover,.nav-menu li a.active{background:var(--primary);color:var(--white)!important}
.nav-toggle{display:none;background:none;border:none;font-size:1.3rem;cursor:pointer;color:var(--text)}
.hero{position:relative;min-height:500px;display:flex;align-items:center;color:var(--white);overflow:hidden}
.hero-content{padding:60px 0}
.hero-content h1{font-size:2.8rem;font-weight:800;margin-bottom:15px;line-height:1.2}
.hero-subtitle{font-size:1.2rem;margin-bottom:30px;opacity:.9}
.hero-btns{display:flex;gap:15px;flex-wrap:wrap}
.section{padding:80px 0}
.section-header{text-align:center;margin-bottom:50px}
.section-header h2{font-size:2rem;color:var(--primary-dark);margin-bottom:10px;display:inline-block}
.section-header h2::after{content:"";display:block;width:60px;height:3px;background:var(--primary);margin:10px auto;border-radius:2px}
.section-desc{color:var(--text-light);font-size:1.05rem}
.services-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:30px}
.service-card{background:var(--white);padding:35px 30px;border-radius:var(--radius);box-shadow:var(--shadow);text-align:center;transition:var(--transition)}
.service-card:hover{transform:translateY(-5px);box-shadow:0 8px 25px rgba(0,0,0,.15)}
.service-icon{width:70px;height:70px;background:linear-gradient(135deg,var(--primary),var(--primary-light));border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:1.8rem;color:var(--white)}
.service-card h3{margin-bottom:10px;font-size:1.2rem}
.service-card p{color:var(--text-light);font-size:.95rem;margin-bottom:15px}
.card-link{font-weight:500;font-size:.9rem}
.features-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:30px}
.feature-item{text-align:center;padding:30px 20px}
.feature-icon{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#e3f2fd,#bbdefb);display:flex;align-items:center;justify-content:center;margin:0 auto 15px;font-size:1.5rem;color:var(--primary)}
.news-grid{display:flex;flex-direction:column;gap:20px}
.news-card{display:flex;gap:20px;background:var(--white);padding:25px;border-radius:var(--radius);box-shadow:var(--shadow);transition:var(--transition)}
.news-date{text-align:center;min-width:70px;padding:10px;background:var(--primary);color:var(--white);border-radius:var(--radius);display:flex;flex-direction:column;align-items:center}
.news-date .day{font-size:1.5rem;font-weight:700;line-height:1}
.news-date .month{font-size:.8rem;opacity:.9}
.cta-section{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:var(--white);text-align:center;padding:80px 0}
.cta-content h2{font-size:2rem;margin-bottom:15px}
.page-banner{padding:80px 0;text-align:center;color:var(--white)}
.page-banner h1{font-size:2.2rem;margin-bottom:10px}
.footer{background:#1a1a2e;color:#ccc;padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:40px;margin-bottom:30px}
.footer-col h4{color:var(--white);font-size:1.1rem;margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid #333}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:#aaa;font-size:.9rem}
.footer-col ul li a:hover{color:var(--white);padding-left:5px}
.footer-bottom{text-align:center;padding:20px 0;border-top:1px solid #333;font-size:.85rem;color:#888}
.contact-info li{display:flex;align-items:center;gap:10px;color:#aaa;font-size:.9rem}
.contact-info li i{width:20px;color:var(--primary-light)}
@media(max-width:768px){
.nav-toggle{display:block}
.nav-menu{position:fixed;top:70px;left:-100%;width:100%;height:calc(100vh - 70px);background:var(--white);flex-direction:column;padding:20px;transition:.3s}
.nav-menu.active{left:0}
.hero-content h1{font-size:1.8rem}
.section{padding:50px 0}
.services-grid,.features-grid{grid-template-columns:1fr}
.news-card{flex-direction:column}
}