:root{--primary:#113B7A;--secondary:#1D5FD1;--accent:#F2C14E;--header-offset:122px;--card-bg:#10233F;--text-main:#F3F8FF;--text-secondary:#AFC4E8;--border-color:#244D84;--glow:#4FA8FF;--gold:#F2C14E;--divider:#1B3357;--deep-navy:#08162B}.site-header{position:fixed;top:0;left:0;width:100%;z-index:10000;min-height:auto;box-shadow:0 2px 20px rgba(8,22,43,.5);font-family:'Segoe UI',Roboto,Helvetica,Arial,sans-serif;line-height:1.4}body{padding-top:var(--header-offset);margin:0}body.no-scroll{overflow:hidden}.header-top{background:linear-gradient(135deg,#08162B 0%,#113B7A 100%);width:100%;border-bottom:1px solid #244D84}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:14px 24px;min-height:68px;box-sizing:border-box}.logo{display:inline-block;text-decoration:none;font-size:36px;font-weight:900;letter-spacing:2px;color:#F3F8FF;text-shadow:0 0 8px rgba(79,168,255,.4);position:relative;line-height:1}.logo:hover{color:#4FA8FF}.desktop-nav-buttons{display:flex;gap:10px;align-items:center}.btn{display:inline-block;text-decoration:none !important;font-weight:700;font-size:15px;padding:10px 24px;border-radius:25px;transition:all .2s ease;box-shadow:0 2px 8px rgba(8,22,43,.3);cursor:pointer;text-align:center;line-height:1.2}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 14px rgba(79,168,255,.3)}.btn-register{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);color:#fff;border:1px solid #4FA8FF}.btn-register:hover{background:linear-gradient(0deg,#2B73F6 0%,#1144A6 100%);box-shadow:0 4px 16px rgba(43,115,246,.5)}.btn-login{background:linear-gradient(135deg,#10233F 0%,#08162B 100%);color:#F3F8FF;border:1px solid #2B73F6}.btn-login:hover{background:linear-gradient(135deg,#1B3357 0%,#08162B 100%);box-shadow:0 4px 16px rgba(43,115,246,.4)}.main-nav{background:linear-gradient(90deg,#10233F 0%,#113B7A 50%,#10233F 100%);width:100%;display:flex;align-items:center;justify-content:center;min-height:52px;position:relative;border-top:1px solid #1B3357;border-bottom:1px solid #244D84}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:6px 16px;gap:2px;width:100%;flex-wrap:wrap}.nav-link{display:inline-block;padding:8px 16px;color:#AFC4E8;text-decoration:none;font-size:16px;font-weight:500;border-radius:4px;transition:color .2s ease,background .2s ease;white-space:nowrap}.nav-link:hover{color:#F3F8FF;background:rgba(43,115,246,.15)}.mobile-nav-buttons{display:none}.hamburger-menu{display:none}.mobile-menu-overlay{display:none}@media(max-width:768px){:root{--header-offset:164px}.site-header{position:fixed;top:0;left:0;width:100%;z-index:20000}.header-top{display:flex;justify-content:space-between;align-items:center;padding:0;height:auto}.header-top .header-container{display:flex;flex-direction:row;justify-content:space-between;align-items:center;width:100%;max-width:none;padding:12px 16px}.header-top .header-container .logo{display:block !important;text-align:center;order:2;flex:1;font-size:30px}.header-top .header-container .desktop-nav-buttons{display:none}.main-nav{display:none;position:fixed;top:0;left:0;width:70%;height:100vh;flex-direction:column;background:linear-gradient(180deg,#113B7A 0%,#08162B 100%);align-items:flex-start;justify-content:flex-start;min-height:100vh;z-index:25000;transform:translateX(-100%);transition:transform .3s ease;overflow-y:auto;padding-top:60px;box-sizing:border-box}.main-nav.active,.main-nav.open{display:block !important;transform:translateX(0);max-width:70%}.nav-container{flex-direction:column;align-items:stretch;width:100%;max-width:none;padding:12px 20px;gap:4px}.nav-link{padding:10px 8px;font-size:17px;color:#AFC4E8;border-bottom:1px solid rgba(36,77,132,.4);background:none}.nav-link:hover{background:rgba(43,115,246,.2);color:#F3F8FF}.mobile-nav-buttons{display:flex;justify-content:center;align-items:center;width:100%;background:linear-gradient(90deg,#08162B 0%,#113B7A 100%);border-top:1px solid #244D84;padding:8px 10px;z-index:15000}.mobile-nav-container{display:flex;justify-content:center;align-items:center;width:100%;max-width:none;gap:10px}.mobile-nav-container .btn{padding:9px 22px;font-size:14px;margin:0}.hamburger-menu{display:flex;flex-direction:column;justify-content:center;align-items:center;background:transparent;border:none;cursor:pointer;z-index:30000;padding:10px;margin:0;width:auto;height:auto;position:absolute;left:12px;top:12px}.hamburger-menu .bar{display:block;width:26px;height:3px;margin:4px 0;background:#fff;border-radius:2px;transition:transform .3s ease,opacity .3s ease;background-color:#fff}.hamburger-menu.active .bar:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamburger-menu.active .bar:nth-child(2){opacity:0}.hamburger-menu.active .bar:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.7);z-index:20000;display:none}.mobile-menu-overlay.active{display:block}.mobile-nav-buttons .btn{white-space:nowrap}.page-content img{max-width:100% !important;height:auto !important;display:block}.page-content{overflow-x:hidden;max-width:100%}body{overflow-x:hidden}}.site-footer{background:#08162B;color:#AFC4E8;border-top:3px solid #F2C14E;width:100%;font-family:'Segoe UI',Roboto,Arial,sans-serif;padding-bottom:0}.site-footer a{text-decoration:none;transition:color .2s ease}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:36px;padding:40px 24px 28px}.footer-brand-col .footer-logo{font-size:34px;font-weight:900;letter-spacing:1.5px;color:#F3F8FF;display:block;margin-bottom:12px;position:relative}.footer-brand-col .footer-logo:hover{color:#4FA8FF}.footer-brand-desc{color:#AFC4E8;font-size:14px;line-height:1.6;margin-top:0}.footer-heading{color:#F3F8FF;font-size:17px;font-weight:700;margin:0 0 16px;position:relative;text-transform:uppercase;letter-spacing:.5px}.footer-heading:after{content:'';display:block;width:30px;height:2px;background:#F2C14E;margin-top:6px}.footer-nav{display:flex;flex-direction:column;gap:10px}.footer-link{color:#AFC4E8;font-size:14px;font-weight:400;line-height:1.2}.footer-link:hover{color:#F3F8FF}.footer-contact-info{display:flex;flex-direction:column;gap:8px}.footer-contact-text{color:#AFC4E8;font-size:14px;margin:0;line-height:1.4}.footer-bottom{background:#10233F;border-top:1px solid #1B3357}.footer-bottom-container{max-width:1200px;margin:0 auto;padding:16px 24px;text-align:center;overflow:hidden}.footer-copyright{margin:0;font-size:14px;color:#AFC4E8;overflow-wrap:break-word}@media(max-width:768px){.footer-container{max-width:100%;grid-template-columns:1fr 1fr;gap:24px;padding:24px 16px 16px}.footer-brand-col{grid-column:1 / -1;text-align:center}.footer-brand-col .footer-logo{font-size:32px}.footer-nav{flex-direction:column;align-items:flex-start;gap:8px}.footer-brand-desc{font-size:14px;text-align:center}.footer-bottom-container{max-width:100%;padding:14px 12px}.footer-col{width:100%}.footer-col .footer-link{padding:4px 0}.footer-bottom,.footer-bottom-container{width:100%;box-sizing:border-box}.footer-copyright{font-size:13px}}
/* 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;
}