:root{--primary:#26A9E0;--secondary:#FFFFFF;--login:#EA7C07;--bg:#FFFFFF;--text-dark:#000000;--header-offset:122px;--footer-bg:#0D2A3A;--footer-text:#E6F4FB;--footer-heading:#FFFFFF;--footer-link:#B9DCEB;--footer-border:rgba(255,255,255,0.12)}*{box-sizing:border-box}body{margin:0;padding-top:var(--header-offset);font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text-dark)}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;background:var(--primary);box-shadow:0 4px 18px rgba(0,0,0,0.22);overflow-x:hidden}.header-top{width:100%;height:68px;min-height:68px;display:flex;align-items:center;overflow:hidden;background:#0D2A3A}.header-container{width:100%;height:100%;max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:28px;padding-right:28px}.logo{display:inline-block;color:#FFFFFF;font-size:28px;font-weight:800;letter-spacing:1px;text-decoration:none;line-height:1;white-space:nowrap}.logo:hover{color:#FFFFFF}.logo img{display:block;max-height:60px;height:auto;width:auto;max-width:280px;object-fit:contain}.desktop-nav-buttons{display:flex;gap:12px;align-items:center}.mobile-nav-buttons{display:none;min-height:48px;box-sizing:border-box}.btn{display:inline-block;text-decoration:none;font-weight:700;border-radius:8px;text-align:center;transition:transform 0.2s ease,box-shadow 0.2s ease;white-space:nowrap}.btn:hover{transform:translateY(-1px)}.btn-login{background:var(--login);color:#FFFFFF;padding:10px 22px;font-size:15px;box-shadow:0 3px 10px rgba(234,124,7,0.35)}.btn-login:hover{background:#cf6c04;color:#FFFFFF}.btn-register{background:var(--secondary);color:#0D2A3A;padding:10px 22px;font-size:15px;border:2px solid var(--secondary);box-shadow:0 3px 10px rgba(0,0,0,0.15)}.btn-register:hover{background:#e8f6fd;color:#0D2A3A}.main-nav{width:100%;height:52px;min-height:52px;display:flex;align-items:center;overflow:hidden;background:#FFFFFF;border-top:1px solid rgba(38,169,224,0.18);border-bottom:1px solid rgba(38,169,224,0.25)}.nav-container{width:100%;height:100%;max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px;gap:6px}.nav-link{display:inline-block;color:#0D2A3A;font-size:14px;font-weight:600;text-decoration:none;padding:8px 12px;border-radius:6px;transition:background-color 0.2s ease,color 0.2s ease;white-space:nowrap}.nav-link:hover,.nav-link.active{background:var(--primary);color:#FFFFFF}.hamburger-menu{display:none;background:transparent;border:none;padding:8px;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;z-index:1001}.hamburger-menu span{display:block;width:26px;height:3px;background:#FFFFFF;border-radius:2px;transition:transform 0.3s ease,opacity 0.3s ease}.hamburger-menu.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}.hamburger-menu.active span:nth-child(2){opacity:0}.hamburger-menu.active span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}.menu-overlay{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.55);z-index:999;opacity:0;transition:opacity 0.3s ease}.menu-overlay.active{display:block;opacity:1}.site-footer{background:var(--footer-bg);color:var(--footer-text);font-size:14px;line-height:1.7}.footer-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;box-sizing:border-box}.footer-top{padding:48px 0 32px;border-bottom:1px solid var(--footer-border)}.footer-top-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}.footer-col{min-width:0}.footer-about .footer-logo{display:inline-block;color:#FFFFFF;font-size:26px;font-weight:800;letter-spacing:1px;text-decoration:none;margin-bottom:14px}.footer-description{margin:0 0 10px;color:var(--footer-link);word-wrap:break-word;overflow-wrap:break-word}.footer-heading{font-size:16px;font-weight:700;color:var(--footer-heading);margin:0 0 14px;padding-bottom:8px;border-bottom:2px solid var(--primary);display:inline-block}.footer-nav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.footer-nav a{color:var(--footer-link);text-decoration:none;transition:color 0.2s ease,padding-left 0.2s ease}.footer-nav a:hover{color:#FFFFFF;padding-left:4px}.footer-dynamic-col{min-height:40px}.footer-slot-anchor,.footer-slot-anchor-inner{display:block;min-height:1px}.footer-mid{padding:24px 0}.footer-mid-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.footer-bottom-wrap{border-top:1px solid var(--footer-border);padding:18px 0}.footer-bottom{text-align:center;color:var(--footer-link);font-size:13px}.footer-bottom p{margin:0}.footer-bottom a{display:none}@media (max-width:768px){:root{--header-offset:110px}.header-top{height:60px !important;min-height:60px !important}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:15px;position:relative}.logo{flex:1 !important;display:flex !important;justify-content:center !important;align-items:center !important;text-align:center}.logo img{display:block !important;max-width:100%;height:auto;max-height:56px}.hamburger-menu{display:flex;order:-1}.desktop-nav-buttons{display:none !important}.mobile-nav-buttons{display:flex !important;align-items:center;justify-content:center;width:100%;max-width:100%;box-sizing:border-box;padding-left:15px;padding-right:15px;overflow:hidden;gap:10px;flex-wrap:nowrap;background:#0D2A3A;min-height:48px}.mobile-nav-buttons .btn{flex:1;min-width:0;max-width:calc(50% - 5px);box-sizing:border-box;padding:8px 12px;font-size:13px;white-space:normal;word-wrap:break-word;overflow-wrap:break-word}.main-nav{display:none;position:fixed;top:0;left:0;width:82%;max-width:320px;height:100vh;min-height:100vh;background:#0D2A3A;flex-direction:column;justify-content:flex-start;align-items:stretch;padding:80px 16px 24px;overflow-y:auto;transform:translateX(-100%);transition:transform 0.3s ease;z-index:1000;border-right:2px solid var(--primary)}.main-nav.active{display:flex;transform:translateX(0)}.nav-container{width:100%;max-width:none;height:auto;display:flex;flex-direction:column;align-items:stretch;justify-content:flex-start;padding:0;gap:4px}.nav-link{color:#FFFFFF;font-size:16px;padding:12px 14px;border-radius:6px;width:100%}.nav-link:hover,.nav-link.active{background:var(--primary);color:#FFFFFF}.footer-top-grid{grid-template-columns:1fr;gap:24px}.footer-mid-grid{grid-template-columns:1fr 1fr;gap:12px}.footer-top{padding:36px 0 24px}.footer-container{padding:0 16px}.footer-dynamic-col{min-height:1px}.page-content img{max-width:100% !important;height:auto !important;display:block}.page-content{overflow-x:hidden;max-width:100%}body{overflow-x:hidden}}
/* 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;
}