.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:linear-gradient(180deg,#08162B 0%,#10233F 100%);box-shadow:0 4px 20px rgba(0,0,0,0.5);border-bottom:2px solid #F2C14E}.site-header .header-top{width:100%;background:#08162B;border-bottom:1px solid #1B3357}.site-header .header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:12px 30px;min-height:calc(68px - 4px)}.site-header .logo{display:inline-flex;align-items:center;color:#F3F8FF;font-size:26px;font-weight:800;text-decoration:none;text-transform:uppercase;letter-spacing:1.5px;line-height:1.2;padding:4px 0;text-shadow:0 0 18px rgba(79,168,255,0.45);font-family:'Arial Black',Arial,sans-serif}.site-header .logo:hover{color:#F2C14E;text-shadow:0 0 18px rgba(242,193,78,0.4)}.site-header .desktop-nav-buttons{display:flex;align-items:center;gap:10px}.site-header .btn{display:inline-flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;padding:10px 24px;border:1px solid #244D84;border-radius:50px;cursor:pointer;text-decoration:none;transition:all 0.3s ease;box-shadow:0 0 12px rgba(79,168,255,0.15);color:#F3F8FF;letter-spacing:0.3px;white-space:nowrap}.site-header .btn-register{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);color:#F3F8FF;border-color:#4FA8FF}.site-header .btn-login{background:linear-gradient(180deg,#1D5FD1 0%,#113B7A 100%);color:#F3F8FF;border-color:#244D84}.site-header .btn-download{background:linear-gradient(180deg,#F2C14E 0%,#D89E2B 100%);color:#08162B;border-color:#F2C14E;font-weight:800}.site-header .btn:hover{transform:translateY(-2px);box-shadow:0 6px 25px rgba(79,168,255,0.3);border-color:#4FA8FF;color:#fff}.site-header .btn-download:hover{box-shadow:0 6px 25px rgba(242,193,78,0.35);color:#08162B}.site-header .main-nav{width:100%;background:#10233F;border-top:0;display:block}.site-header .nav-container{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:center;gap:4px;padding:0 20px;min-height:calc(52px - 0px)}.site-header .nav-link{display:inline-flex;align-items:center;justify-content:center;color:#AFC4E8;font-size:15px;font-weight:600;text-decoration:none;padding:10px 14px;border-radius:8px;transition:all 0.3s ease;white-space:nowrap;border-bottom:2px solid transparent;line-height:1.4}.site-header .nav-link:hover{color:#F3F8FF;background:rgba(29,95,209,0.15);border-bottom-color:#F2C14E}.site-header .nav-link.active{color:#F2C14E;border-bottom-color:#F2C14E}.site-header .hamburger-menu{display:none}.site-header .mobile-menu-overlay{display:none}.site-header .mobile-nav-buttons{display:none}.site-footer{background:linear-gradient(180deg,#08162B,#10233F 60%,#0B1B33);color:#AFC4E8;border-top:2px solid #F2C14E;font-family:Arial,Helvetica,sans-serif;width:100%;clear:both;position:relative}.site-footer .footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.4fr 0.8fr 1fr 1fr;gap:35px;padding:40px 30px 25px}.site-footer .footer-logo{display:inline-block;color:#F3F8FF;font-size:22px;font-weight:800;text-decoration:none;text-transform:uppercase;letter-spacing:1px;margin-bottom:10px;text-shadow:0 0 12px rgba(79,168,255,0.3)}.site-footer .footer-desc{font-size:14px;line-height:1.7;color:#AFC4E8;margin:0;max-width:300px}.site-footer .footer-title{color:#F2C14E;font-size:17px;font-weight:700;margin:0 0 15px;text-transform:uppercase;letter-spacing:1px}.site-footer .footer-nav{list-style:none;padding:0;margin:0}.site-footer .footer-nav li{margin-bottom:10px}.site-footer .footer-link{color:#AFC4E8;text-decoration:none;font-size:14px;transition:color 0.3s ease}.site-footer .footer-link:hover{color:#F2C14E;padding-left:3px;transition:all 0.3s ease}.site-footer .footer-contact-list{list-style:none;padding:0;margin:0}.site-footer .footer-contact-list li{font-size:14px;color:#AFC4E8;margin-bottom:12px;line-height:1.6;padding-left:25px;position:relative}.site-footer .footer-contact-list li::before{content:'✦';position:absolute;left:0;color:#F2C14E}.site-footer .footer-bottom{border-top:1px solid #1B3357;padding:18px 30px;text-align:center;background:rgba(8,22,43,0.6);margin-top:10px}.site-footer .footer-bottom p{margin:0 0 6px;color:#AFC4E8;font-size:14px;line-height:1.6}.site-footer .footer-bottom .footer-brand-link{color:#F2C14E;text-decoration:none;font-weight:700}.site-footer .footer-note{font-size:13px;color:#6C8DC4;font-style:italic}.site-footer .footer-bottom p:last-child{margin-bottom:0}.site-footer a{transition:color 0.3s ease,box-shadow 0.3s ease}.site-footer .footer-logo:hover,.site-footer .footer-bottom .footer-brand-link:hover{color:#F2C14E}.site-footer .footer-logo{text-shadow:0 0 16px rgba(79,168,255,0.4)}.site-footer .footer-bottom .footer-brand-link{text-decoration:none;font-weight:700}@media(max-width:768px){.site-header .header-container{width:100%;max-width:none;padding:8px 15px;display:grid;grid-template-columns:52px 1fr 52px;align-items:center;justify-content:space-between;min-height:calc(60px - 4px)}.site-header .header-container .logo{grid-column:2;justify-self:center;font-size:22px}.site-header .header-container .desktop-nav-buttons{display:none}.site-header .hamburger-menu{display:flex;grid-column:1;justify-self:start;flex-direction:column;justify-content:center;align-items:center;background:transparent;border:none;padding:8px;gap:6px;cursor:pointer;z-index:1001}.site-header .hamburger-menu .bar{width:28px;height:3px;background:#F2C14E;display:block;border-radius:0;transition:all 0.3s ease-in-out;margin:0}.site-header .hamburger-menu.active .bar:nth-child(1){transform:translateY(9px) rotate(45deg)}.site-header .hamburger-menu.active .bar:nth-child(2){opacity:0}.site-header .hamburger-menu.active .bar:nth-child(3){transform:translateY(-9px) rotate(-45deg)}.site-header .mobile-menu-overlay{display:block;position:fixed;top:0;left:0;width:100%;height:100vh;height:100dvh;background:rgba(2,8,19,0.88);z-index:1002;opacity:0;visibility:hidden;transition:opacity 0.35s ease,visibility 0s linear 0.35s;backdrop-filter:blur(2px);-webkit-backdrop-filter:blur(2px);border:none;cursor:pointer}.site-header .mobile-menu-overlay.active{opacity:1;visibility:visible;transition:opacity 0.3s ease}.site-header .main-nav{display:block;position:fixed;top:0;left:0;width:calc(100% - 65px);max-width:340px;height:100vh;height:100dvh;background:#08162B;flex-direction:column;justify-content:flex-start;align-items:stretch;transform:translateX(-100%);transition:transform 0.35s cubic-bezier(0.25,1,0.5,1);z-index:1003;box-shadow:none;border-right:2px solid #F2C14E;border-top:0}.site-header .main-nav.active{transform:translateX(0)}.site-header .main-nav .nav-container{width:100%;max-width:none;display:flex;flex-direction:column;gap:2px;padding:30px 25px 20px;align-items:stretch;overflow-y:auto;justify-content:flex-start}.site-header .main-nav .nav-link{color:#AFC4E8;font-size:17px;padding:14px 12px;border-radius:10px;text-align:left;border-bottom:1px solid #1B3357;white-space:normal}.site-header .main-nav .nav-link:hover,.site-header .main-nav .nav-link.active{color:#F2C14E;background:rgba(29,95,209,0.1);border-bottom-color:#1B3357}.site-header .mobile-nav-buttons{display:flex;width:100%;background:#0A1A33;padding:8px 10px;flex-wrap:wrap;justify-content:center;align-items:center;gap:6px;z-index:599}.site-header .mobile-nav-buttons .btn{flex:1 1 auto;min-width:0;padding:9px 8px;font-size:13px}.site-header .desktop-nav-buttons .btn{padding:9px 20px;font-size:14px}.site-footer .footer-container{grid-template-columns:1fr 1fr;gap:25px;padding:30px 20px 15px}.site-footer .footer-logo{font-size:19px}.site-footer .footer-desc{max-width:100%}.site-footer .footer-bottom{padding:15px 15px 20px}.site-footer .footer-bottom p{font-size:13px}.site-footer .footer-contact-list li{font-size:13px;margin-bottom:8px}}@media(max-width:480px){.site-header .header-container{display:flex;flex-wrap:wrap;justify-content:center;gap:4px;text-align:center}.site-header .header-container .logo{order:2;flex:1;justify-content:center;font-size:20px;text-align:center}.site-header .hamburger-menu{order:1;display:flex}.site-header .header-container .desktop-nav-buttons{display:none}.site-footer .footer-container{grid-template-columns:1fr;gap:20px}.site-header .btn{padding:9px 12px;font-size:13px}}@media(min-width:769px){.site-header .main-nav{display:block;flex-direction:row;max-height:none}}
/* 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;
}