:root{--header-offset:122px;--primary:#2F6BFF;--secondary:#6FA3FF;--bg:#F4F7FB;--card-bg:#FFFFFF;--text-main:#1F2D3D;--border:#D6E2FF;--glow:#A5C4FF;--btn-gradient:linear-gradient(180deg,#4A8BFF 0%,#2F6BFF 100%)}*{box-sizing:border-box}body{margin:0;padding-top:var(--header-offset);font-family:'Segoe UI',Roboto,Arial,sans-serif;background:var(--bg);color:var(--text-main)}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;box-shadow:0 4px 18px rgba(47,107,255,0.18);background:var(--card-bg)}.header-top{box-sizing:border-box;min-height:68px;height:68px;display:flex;align-items:center;overflow:hidden;background-color:#1B3A8C;width:100%}.header-container{box-sizing:border-box;width:100%;height:100%;max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:30px;padding-right:30px}.logo{display:inline-block;font-size:26px;font-weight:800;letter-spacing:.5px;color:#FFFFFF;text-decoration:none;line-height:1;text-shadow:0 2px 6px rgba(0,0,0,0.25)}.logo:hover{color:var(--glow)}.desktop-nav-buttons{display:flex;gap:12px;align-items:center}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border:none;cursor:pointer;font-weight:700;border-radius:8px;padding:10px 20px;font-size:14px;line-height:1.2;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease;white-space:nowrap}.btn:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 6px 16px rgba(47,107,255,0.4)}.btn-login{background:transparent;color:#FFFFFF;border:2px solid var(--glow)}.btn-login:hover{background:rgba(165,196,255,0.15)}.btn-register{background:var(--btn-gradient);color:#FFFFFF;box-shadow:0 4px 12px rgba(47,107,255,0.45)}.mobile-nav-buttons{box-sizing:border-box;display:none;min-height:48px}.main-nav{box-sizing:border-box;min-height:52px;height:52px;display:flex;align-items:center;overflow:hidden;background-color:#E8F0FF;width:100%;border-top:1px solid var(--border)}.nav-container{box-sizing:border-box;height:100%;max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px}.nav-menu{display:flex;flex-direction:row;justify-content:center;align-items:center;list-style:none;margin:0;padding:0;gap:6px;flex-wrap:nowrap}.nav-menu li{margin:0;padding:0}.nav-link{display:inline-block;padding:8px 12px;color:#1B3A8C;text-decoration:none;font-size:14px;font-weight:600;border-radius:6px;transition:background .2s ease,color .2s ease;white-space:nowrap}.nav-link:hover,.nav-link.active{background:var(--primary);color:#FFFFFF}.hamburger-menu{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;background:transparent;border:none;cursor:pointer;padding:0;z-index:1001}.hamburger-menu span{display:block;width:26px;height:3px;background:#FFFFFF;border-radius:2px;transition:transform .3s ease,opacity .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)}.nav-overlay{display:none;position:fixed;inset:0;background:rgba(15,30,60,0.55);z-index:999;opacity:0;transition:opacity .3s ease}.nav-overlay.active{display:block;opacity:1}body.no-scroll{overflow:hidden}.site-footer{background-color:#122B66;color:#DCE6FA;margin-top:40px}.footer-container{max-width:1200px;margin:0 auto;padding:0 30px}.footer-top{padding:48px 0 28px}.footer-top-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}.footer-col{min-width:0}.footer-about{display:flex;flex-direction:column;gap:14px}.footer-logo{display:inline-block;font-size:26px;font-weight:800;color:#FFFFFF;text-decoration:none;letter-spacing:.5px}.footer-logo:hover{color:var(--glow)}.footer-description{margin:0;font-size:14px;line-height:1.7;color:#C3D3F2;word-wrap:break-word;overflow-wrap:break-word}.footer-heading{margin:0 0 14px;font-size:16px;font-weight:700;color:#FFFFFF;letter-spacing:.3px}.footer-nav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.footer-nav li{margin:0;padding:0}.footer-nav a{color:#C3D3F2;text-decoration:none;font-size:14px;transition:color .2s ease,padding-left .2s ease;display:inline-block}.footer-nav a:hover{color:var(--glow);padding-left:4px}.footer-mid{padding:8px 0 26px}.footer-mid-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.footer-mid-cell{min-width:0}.footer-bottom-anchor{padding:0 30px}.footer-bottom{border-top:1px solid rgba(165,196,255,0.25);padding:20px 0;background-color:#0D2050}.footer-copyright{margin:0;text-align:center;font-size:13px;color:#AFC3E8;line-height:1.6}.footer-slot-anchor-inner{min-height:1px;width:100%}.footer-dynamic-col{display:flex;flex-direction:column}@media(max-width:768px){:root{--header-offset:110px}body{padding-top:var(--header-offset)}.header-top{min-height:60px!important;height:60px!important}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:15px;position:relative}.logo{position:absolute!important;left:50%!important;transform:translateX(-50%)!important;display:inline-block!important;font-size:22px;max-width:calc(100% - 120px);text-align:center}.desktop-nav-buttons{display:none!important}.mobile-nav-buttons{display:flex!important;min-height:48px;align-items:center;justify-content:center;width:100%;max-width:100%;box-sizing:border-box;padding:8px 15px;overflow:hidden;gap:10px;flex-wrap:nowrap;background-color:#1B3A8C}.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}.hamburger-menu{display:flex;position:relative;z-index:2;flex:0 0 auto}.main-nav{min-height:48px!important;height:48px!important;display:none;position:fixed;top:calc(60px + 48px);left:0;width:82%;max-width:320px;height:auto!important;min-height:0!important;background-color:#122B66;transform:translateX(-100%);transition:transform .3s ease;z-index:1001;border-top:none;box-shadow:4px 0 20px rgba(0,0,0,0.3);overflow-y:auto}.main-nav.active{display:block;transform:translateX(0)}.nav-container{width:100%;max-width:none;padding:16px 0;height:auto}.nav-menu{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:0;width:100%}.nav-menu li{width:100%}.nav-link{display:block;width:100%;padding:14px 22px;color:#DCE6FA;border-radius:0;font-size:15px}.nav-link:hover,.nav-link.active{background:var(--primary);color:#FFFFFF}.footer-top{padding:32px 0 20px}.footer-top-grid{grid-template-columns:1fr;gap:28px}.footer-container{padding:0 16px}.footer-mid-grid{grid-template-columns:1fr}.footer-bottom-anchor{padding:0 16px}.footer-copyright{font-size:12px}.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;
}