:root{--primary:#017439;--primary-dark:#015a2c;--secondary:#FFFFFF;--yellow:#FFFF00;--red:#C30808;--text-dark:#222222;--text-light:#555555;--header-offset:120px;--header-bg-top:#015a2c;--header-bg-nav:#ffffff;--footer-bg:#015a2c;}*{margin:0;padding:0;box-sizing:border-box;}body{font-family:'Roboto',Arial,Helvetica,sans-serif;padding-top:var(--header-offset);background-color:#FFFFFF;overflow-x:hidden;}a{text-decoration:none;}ul{list-style:none;}.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background-color:#ffffff;box-shadow:0 2px 12px rgba(0,0,0,0.2);}.header-top{background-color:var(--header-bg-top);width:100%;}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:20px;padding-right:20px;min-height:68px;}.logo{display:inline-flex;align-items:center;color:#FFFFFF;font-size:28px;font-weight:800;text-transform:uppercase;letter-spacing:1px;text-decoration:none;background:linear-gradient(135deg,#FFD700,#FFAA00);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:2px 2px 4px rgba(0,0,0,0.2);}.logo:hover{opacity:0.85;}.desktop-nav-buttons{display:flex;gap:10px;align-items:center;}.btn{display:inline-flex;align-items:center;justify-content:center;padding:8px 18px;border-radius:30px;font-weight:700;font-size:14px;text-transform:uppercase;text-decoration:none;border:none;cursor:pointer;box-shadow:0 2px 8px rgba(0,0,0,0.2);transition:transform 0.2s ease,box-shadow 0.2s ease;white-space:nowrap;color:#FFFF00;}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.3);}.btn-login{background-color:#C30808;color:#FFFF00;}.btn-register{background-color:#C30808;color:#FFFF00;}.btn-download{background-color:#C30808;color:#FFFF00;}.main-nav{background-color:var(--header-bg-nav);width:100%;display:flex;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;flex-wrap:wrap;padding-left:20px;padding-right:20px;min-height:52px;gap:4px;}.nav-link{display:inline-block;padding:10px 14px;font-weight:600;font-size:14px;color:#017439;text-transform:uppercase;letter-spacing:0.5px;transition:color 0.3s ease;border-bottom:2px solid transparent;line-height:1.2;}.nav-link:hover{color:#015a2c;background-color:#e8f5e9;border-radius:4px;border-bottom-color:#017439;}.hamburger-menu{display:none;background:transparent;border:none;cursor:pointer;padding:10px;z-index:1002;}.hamburger-menu span{display:block;width:26px;height:3px;background:#FFFFFF;margin:5px 0;transition:all 0.3s ease;border-radius:2px;}.hamburger-menu.active span:nth-child(1){transform:rotate(45deg) translate(6px,6px);}.hamburger-menu.active span:nth-child(2){opacity:0;}.hamburger-menu.active span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px);}.mobile-menu-overlay{display:none;}.mobile-nav-buttons{display:none;}.site-footer{background-color:var(--footer-bg);color:#FFFFFF;margin-top:60px;}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;padding:50px 20px 30px;}.footer-brand .footer-logo{font-size:28px;font-weight:800;color:#FFD700;text-transform:uppercase;text-decoration:none;display:inline-block;margin-bottom:15px;}.footer-brand .footer-desc{font-size:14px;line-height:1.7;color:#e0f2e9;max-width:380px;}.footer-heading{font-size:16px;font-weight:700;color:#FFD700;margin-bottom:15px;text-transform:uppercase;letter-spacing:0.5px;}.footer-nav li{margin-bottom:10px;}.footer-nav a{color:#e0f2e9;font-size:14px;transition:color 0.2s ease, padding-left 0.2s ease;}.footer-nav a:hover{color:#FFD700;padding-left:5px;}.footer-bottom{background-color:#014a25;text-align:center;padding:15px 20px;border-top:1px solid rgba(255,255,255,0.1);}.footer-bottom .copyright{font-size:14px;color:#b8e6cd;}.footer-bottom .copyright span{color:#FFD700;font-weight:700;}.footer-disclaimer{font-size:12px;color:#8bc4a8;margin-top:5px;}@media (max-width:768px){:root{--header-offset:106px;}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:10px;min-height:60px;flex-wrap:nowrap;}.logo{font-size:20px;flex:1;text-align:center;justify-content:center;order:1;display:flex;}.desktop-nav-buttons{display:none;}/* hamburger on left */
.header-top .header-container{position:relative;}.hamburger-menu{display:block;order:0;flex:0 0 40px;padding:8px;}.mobile-nav-buttons{display:flex;justify-content:center;gap:8px;padding:8px 10px;background-color:#015a2c;border-top:1px solid rgba(255,255,255,0.1);flex-wrap:wrap;}.mobile-nav-buttons .btn{padding:6px 14px;font-size:12px;flex:1;max-width:150px;}.main-nav{display:none;flex-direction:column;background-color:#017439;position:fixed;top:0;left:0;bottom:0;width:82%;max-width:320px;transform:translateX(-100%);transition:transform 0.35s ease-in-out;box-shadow:2px 0 20px rgba(0,0,0,0.4);z-index:1001;border-right:3px solid #FFD700;}.main-nav.active{display:flex;transform:translateX(0);}.nav-container{width:100%;max-width:none;flex-direction:column;justify-content:flex-start;align-items:stretch;padding:20px 15px;gap:5px;overflow-y:auto;}.nav-link{color:#FFFFFF;font-size:15px;padding:12px 10px;border-bottom:1px solid rgba(255,255,255,0.1);border-radius:0;}.nav-link:hover{background-color:rgba(255,255,255,0.15);color:#FFFF00;border-bottom-color:#FFD700;}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:999;display:none;}.mobile-menu-overlay.active{display:block;}.page-content img{max-width:100% !important;height:auto !important;display:block;}.page-content{overflow-x:hidden;max-width:100%;}body{overflow-x:hidden;}.footer-container{width:100%;max-width:none;grid-template-columns:1fr;gap:25px;padding:35px 20px;}.footer-brand .footer-desc{max-width:100%;}}
/* 移动端内容区防溢出（系统追加，请勿删除） */
@media (max-width: 768px) {
  .page-content img {
    max-width: 100% !important;
    height: auto !important;
    display: block;
  }
  .page-content {
    overflow-x: hidden;
    max-width: 100%;
  }
  body {
    overflow-x: hidden;
  }
}
/* 内容保护（系统追加，请勿删除） */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
input, textarea, select, [contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  user-select: text;
}