*{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#0a1628;--primary-light:#1a3a5c;--primary-mid:#152942;
  --accent:#d4a853;--accent-light:#e8c97a;--accent-dark:#b8923f;
  --text:#1a1a1a;--text-light:#666;--text-muted:#999;
  --bg:#fff;--bg-gray:#f7f8fa;--bg-dark:#0a1628;
  --border:#e5e7eb;--shadow:0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:0 12px 48px rgba(0,0,0,.12);
}
html{scroll-behavior:smooth}
body{font-family:'Noto Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:var(--text);line-height:1.7;background:var(--bg)}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===== 顶部导航 ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,22,40,.95);backdrop-filter:blur(12px);border-bottom:1px solid rgba(212,168,83,.15)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:12px}
.logo-icon{width:42px;height:42px;background:linear-gradient(135deg,var(--accent),var(--accent-dark));border-radius:10px;display:flex;align-items:center;justify-content:center;font-weight:900;color:var(--primary);font-size:18px;letter-spacing:-1px}
.logo-text{color:#fff;font-weight:700;font-size:18px;letter-spacing:1px}
.logo-text span{color:var(--accent)}
.nav{display:flex;gap:36px}
.nav a{color:rgba(255,255,255,.8);font-size:15px;font-weight:400;transition:color .3s;position:relative}
.nav a:hover,.nav a.active{color:var(--accent)}
.nav a.active::after{content:'';position:absolute;bottom:-24px;left:0;right:0;height:2px;background:var(--accent)}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer}
.nav-toggle span{width:24px;height:2px;background:#fff;transition:.3s}
.header-btn{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--primary);padding:10px 24px;border-radius:6px;font-weight:600;font-size:14px;transition:transform .3s,box-shadow .3s}
.header-btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(212,168,83,.4)}

/* ===== 页面Banner ===== */
.page-banner{position:relative;height:360px;display:flex;align-items:center;overflow:hidden;background:var(--primary);margin-top:72px}
.page-banner-bg{position:absolute;inset:0}
.page-banner-bg img{width:100%;height:100%;object-fit:cover;opacity:.3}
.page-banner-overlay{position:absolute;inset:0;background:linear-gradient(135deg,rgba(10,22,40,.9),rgba(26,58,92,.7))}
.page-banner-content{position:relative;z-index:2;text-align:center;color:#fff;width:100%}
.page-banner-content h1{font-size:44px;font-weight:900;margin-bottom:16px;letter-spacing:2px}
.page-banner-content p{font-size:17px;color:rgba(255,255,255,.7);max-width:600px;margin:0 auto}
.breadcrumb{margin-top:20px;font-size:14px;color:rgba(255,255,255,.5)}
.breadcrumb a{color:rgba(255,255,255,.6)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{margin:0 8px}

/* ===== 通用区块 ===== */
.section{padding:100px 0}
.section-gray{background:var(--bg-gray)}
.section-dark{background:var(--primary);color:#fff}
.section-header{text-align:center;margin-bottom:64px}
.section-tag{display:inline-block;color:var(--accent-dark);font-size:14px;font-weight:600;letter-spacing:3px;text-transform:uppercase;margin-bottom:16px}
.section-title{font-size:40px;font-weight:900;color:var(--primary);margin-bottom:16px;letter-spacing:1px}
.section-dark .section-title{color:#fff}
.section-desc{font-size:17px;color:var(--text-light);max-width:680px;margin:0 auto;line-height:1.8}
.section-dark .section-desc{color:rgba(255,255,255,.65)}

/* ===== 按钮 ===== */
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:var(--primary);padding:14px 36px;border-radius:8px;font-weight:700;font-size:15px;transition:transform .3s,box-shadow .3s;display:inline-flex;align-items:center;gap:8px;border:none;cursor:pointer}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(212,168,83,.4)}
.btn-outline{border:1.5px solid var(--border);color:var(--primary);padding:14px 36px;border-radius:8px;font-weight:500;font-size:15px;transition:all .3s;display:inline-flex;align-items:center;gap:8px;background:#fff}
.btn-outline:hover{border-color:var(--accent);color:var(--accent-dark)}

/* ===== 卡片 ===== */
.card{background:#fff;border-radius:16px;box-shadow:var(--shadow);border:1px solid var(--border);transition:transform .4s,box-shadow .4s}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}

/* ===== CTA ===== */
.cta-section{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-mid) 100%);padding:80px 0;position:relative;overflow:hidden}
.cta-section::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23d4a853' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}
.cta-inner{text-align:center;position:relative;z-index:2}
.cta-inner h2{font-size:36px;font-weight:900;color:#fff;margin-bottom:16px}
.cta-inner p{font-size:17px;color:rgba(255,255,255,.7);margin-bottom:36px;max-width:600px;margin-left:auto;margin-right:auto}

/* ===== 页脚 ===== */
.footer{background:#060d18;color:rgba(255,255,255,.6);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:48px}
.footer-brand .logo{margin-bottom:20px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.5);margin-bottom:20px}
.footer-contact-info{font-size:14px;line-height:2}
.footer-contact-info div{display:flex;align-items:center;gap:10px}
.footer-contact-info svg{width:16px;height:16px;stroke:var(--accent);fill:none;stroke-width:1.8;flex-shrink:0}
.footer h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.5);transition:color .3s}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:24px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}
.footer-bottom a{color:rgba(255,255,255,.5);transition:color .3s}
.footer-bottom a:hover{color:var(--accent)}
.footer-bottom .beian{margin-left:16px}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:768px){
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:var(--primary);flex-direction:column;padding:20px 24px;gap:16px;border-bottom:1px solid rgba(212,168,83,.2)}
  .nav.open{display:flex}
  .nav-toggle{display:flex}
  .header-btn{display:none}
  .page-banner{height:280px}
  .page-banner-content h1{font-size:30px}
  .section{padding:60px 0}
  .section-title{font-size:28px}
  .footer-grid{grid-template-columns:1fr}
  .cta-inner h2{font-size:26px}
}