:root{--header-offset:122px;--primary:#113B7A;--secondary:#1D5FD1;--btn-grad:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%);--card-bg:#10233F;--text-main:#F3F8FF;--text-sec:#AFC4E8;--border:#244D84;--glow:#4FA8FF;--gold:#F2C14E;--divider:#1B3357;--deep-navy:#08162B}*,*::before,*::after{box-sizing:border-box}body{padding-top:var(--header-offset);margin:0}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;box-shadow:0 4px 18px rgba(8,22,43,.55);background:#0B1E38}.header-top{box-sizing:border-box;height:68px;min-height:68px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(90deg,#08162B 0%,#113B7A 100%);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:25px;padding-right:25px;gap:15px}.logo{display:inline-flex;align-items:center;text-decoration:none;font-size:30px;font-weight:800;letter-spacing:1px;color:var(--gold);text-shadow:0 0 12px rgba(79,168,255,.55);flex-shrink:0}.logo:hover{color:#FFD97A}.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;flex-shrink:0}.mobile-nav-buttons{display:none;min-height:48px}.btn{display:inline-flex;align-items:center;justify-content:center;text-align:center;text-decoration:none;border-radius:8px;font-weight:700;font-size:14px;line-height:1.2;padding:10px 20px;color:#FFFFFF;border:1px solid var(--border);cursor:pointer;transition:transform .2s ease,box-shadow .2s ease;white-space:nowrap}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 18px rgba(79,168,255,.45)}.btn-login{background:transparent;border:1px solid var(--glow);color:var(--text-main)}.btn-login:hover{background:rgba(79,168,255,.12)}.btn-register{background:var(--btn-grad);border:1px solid #2B73F6;color:#FFFFFF;box-shadow:0 4px 14px rgba(17,68,166,.5)}.hamburger-menu{display:none;width:44px;height:44px;background:transparent;border:none;cursor:pointer;padding:8px;position:relative;z-index:1001;flex-direction:column;justify-content:space-around;flex-shrink:0}.hamburger-menu span{display:block;width:100%;height:3px;background:var(--gold);border-radius:3px;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)}.main-nav{box-sizing:border-box;height:52px;min-height:52px;display:flex;align-items:center;overflow:hidden;background:#0E2A52;width:100%;border-top:1px solid var(--border);border-bottom:1px solid var(--divider)}.nav-container{box-sizing:border-box;height:100%;max-width:1200px;width:100%;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 25px}.nav-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:row;align-items:center;justify-content:center;gap:6px;flex-wrap:wrap}.nav-link{display:inline-block;text-decoration:none;color:var(--text-main);font-size:14px;font-weight:600;padding:6px 12px;border-radius:6px;transition:color .2s ease,background .2s ease;white-space:nowrap}.nav-link:hover{color:var(--gold);background:rgba(79,168,255,.12)}.nav-link.active{color:var(--gold);background:rgba(79,168,255,.16)}.menu-overlay{display:none}.site-footer{background:var(--deep-navy);color:var(--text-main);border-top:1px solid var(--border);margin-top:40px}.footer-container{max-width:1200px;margin:0 auto;padding:40px 25px 0}.footer-top-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px;padding-bottom:30px;border-bottom:1px solid var(--divider)}.footer-col{min-width:0}.footer-about .footer-logo{display:inline-block;font-size:28px;font-weight:800;letter-spacing:1px;color:var(--gold);text-decoration:none;margin-bottom:12px;text-shadow:0 0 12px rgba(79,168,255,.5)}.footer-description{color:var(--text-sec);font-size:14px;line-height:1.7;margin:0;word-wrap:break-word;overflow-wrap:break-word}.footer-title{color:var(--text-main);font-size:16px;font-weight:700;margin:0 0 14px;padding-bottom:8px;border-bottom:2px solid var(--gold);display:inline-block}.footer-nav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.footer-nav a{color:var(--text-sec);text-decoration:none;font-size:14px;transition:color .2s ease;display:inline-block}.footer-nav a:hover{color:var(--gold)}.footer-slot-anchor-inner{display:block;width:100%}.footer-mid{padding:25px 0}.footer-slot-mid{display:block;width:100%;margin-bottom:12px}.footer-slot-mid-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.footer-slot-bottom{display:block;width:100%;padding:15px 0}.footer-bottom{border-top:1px solid var(--divider);padding:20px 0;text-align:center}.footer-bottom p{margin:0;color:var(--text-sec);font-size:13px;line-height:1.6}.footer-slot-top{display:block;width:100%}@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;height:100%}.logo{position:absolute!important;left:50%!important;transform:translateX(-50%)!important;display:flex!important;align-items:center!important;justify-content:center!important;max-width:calc(100% - 110px);font-size:26px}.logo img{display:block!important;max-width:100%;height:auto;max-height:56px}.hamburger-menu{display:flex!important}.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;min-height:48px;background:#0B1E38}.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!important;top:0;left:0;width:80%;max-width:320px;height:100vh;min-height:100vh;background:#0B1E38;border-right:1px solid var(--border);flex-direction:column;align-items:flex-start;justify-content:flex-start;transform:translateX(-100%);transition:transform .3s ease;z-index:1001;overflow-y:auto;padding-top:70px}.main-nav.active{display:block!important;transform:translateX(0)!important}.nav-container{width:100%;max-width:none;height:auto;padding:10px 15px;flex-direction:column;align-items:stretch;justify-content:flex-start}.nav-list{flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px;width:100%}.nav-link{display:block;width:100%;font-size:15px;padding:12px 14px;border-bottom:1px solid var(--divider)}.menu-overlay{display:none;position:fixed;inset:0;background:rgba(8,22,43,.7);z-index:999}.menu-overlay.active{display:block!important}.footer-top-grid{grid-template-columns:1fr;gap:25px}.footer-slot-mid-grid{grid-template-columns:repeat(2,1fr)}.footer-container{padding:30px 15px 0}.footer-title{margin-top:0}.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;
}