@charset "UTF-8";

:root {
  --primary: #D5F5E3;
  --secondary: #1E8449;
  --dark-bg: #15261E;
  --text: #1a1a1a;
  --text-light: #f5f5f5;
  --border: #2E8B57;
  --hover: #27AE60;
  --white: #ffffff;
  --gray: #666666;
  --light-gray: #f8f9fa;
  --shadow: rgba(21,38,30,0.12);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;font-size:16px}
body{font-family:'Microsoft YaHei','PingFang SC','Helvetica Neue',Arial,sans-serif;line-height:1.6;color:var(--text);background:var(--white);-webkit-font-smoothing:antialiased}
a{color:var(--secondary);text-decoration:none;transition:color 0.3s ease}
a:hover{color:var(--hover)}
img{max-width:100%;height:auto;display:block}
ul,ol{list-style:none}

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

.header{background:var(--dark-bg);position:sticky;top:0;z-index:1000;box-shadow:0 2px 10px var(--shadow)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px}
.logo-text{font-size:22px;font-weight:800;color:var(--primary);letter-spacing:1px}
.logo-en{font-size:11px;color:var(--primary);opacity:0.7;letter-spacing:2px;text-transform:uppercase}
.nav{display:flex;align-items:center;gap:36px;justify-content:center;flex:1}
.nav a{color:var(--text-light);font-size:15px;font-weight:500;position:relative;padding:5px 0}
.nav a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--primary);transition:width 0.3s ease}
.nav a:hover::after{width:100%}
.nav a:hover{color:var(--primary)}

.footer{background:var(--dark-bg);color:var(--text-light);padding:40px 0 20px;margin-top:60px}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:30px}
.footer-brand .logo-text{color:var(--primary);font-size:20px;font-weight:800;margin-bottom:10px}
.footer-brand p{font-size:13px;color:rgba(245,245,245,0.7);line-height:1.8}
.footer-title{font-size:15px;font-weight:700;color:var(--primary);margin-bottom:15px;text-transform:uppercase;letter-spacing:1px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(245,245,245,0.7);font-size:13px;transition:color 0.3s}
.footer-links a:hover{color:var(--primary)}
.footer-contact p{font-size:13px;color:rgba(245,245,245,0.7);margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(213,245,227,0.1);padding-top:20px;text-align:center;font-size:12px;color:rgba(245,245,245,0.5)}
.footer-bottom a{color:rgba(245,245,245,0.5);transition:color 0.3s}
.footer-bottom a:hover{color:var(--primary)}

.btn{display:inline-block;padding:12px 32px;font-size:14px;font-weight:600;border-radius:4px;cursor:pointer;transition:all 0.3s ease;border:none;text-align:center}
.btn-primary{background:var(--secondary);color:var(--white)}
.btn-primary:hover{background:var(--hover);transform:translateY(-2px);box-shadow:0 8px 25px rgba(30,132,73,0.3)}
.btn-outline{border:2px solid var(--secondary);color:var(--secondary);background:transparent}
.btn-outline:hover{background:var(--secondary);color:var(--white);transform:translateY(-2px)}

.breadcrumb{background:var(--light-gray);padding:12px 0;font-size:13px;color:var(--gray)}
.breadcrumb a{color:var(--secondary)}
.breadcrumb span{color:var(--gray);margin:0 8px}

.section-title{font-size:32px;font-weight:800;color:var(--dark-bg);text-align:center;margin-bottom:12px;position:relative}
.section-subtitle{text-align:center;color:var(--gray);font-size:15px;margin-bottom:40px}
.section-tag{display:inline-block;background:var(--primary);color:var(--secondary);font-size:12px;font-weight:600;padding:4px 16px;border-radius:20px;margin-bottom:12px;text-transform:uppercase;letter-spacing:1px}

.scroll-top{position:fixed;bottom:30px;right:30px;width:44px;height:44px;background:var(--secondary);color:var(--white);border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;visibility:hidden;transition:all 0.3s ease;z-index:999;box-shadow:0 4px 15px rgba(30,132,73,0.3)}
.scroll-top.visible{opacity:1;visibility:visible}
.scroll-top:hover{background:var(--hover);transform:translateY(-3px)}

@media (max-width:768px) {
  .header-inner{height:auto;padding:15px 0;flex-direction:column;gap:10px}
  .nav{flex-wrap:wrap;gap:16px;justify-content:center}
  .nav a{font-size:13px}
  .footer-inner{grid-template-columns:1fr;gap:30px}
  .section-title{font-size:24px}
  .container{padding:0 15px}
}

@media (max-width:480px) {
  .nav{gap:12px}
  .nav a{font-size:12px}
  .logo-text{font-size:18px}
}