.site-header{position:fixed;top:0;left:0;width:100%;background-color:#12274a;z-index:1000;box-shadow:0 4px 20px rgba(0,0,0,0.5);border-bottom:2px solid #244D84;min-height:100px}.site-header .container,.site-header .header-container,.site-header .nav-container{max-width:1200px;margin:0 auto;width:100%;box-sizing:border-box}.header-top{background-color:#113B7A;width:100%;border-bottom:1px solid #244D84}.header-container{display:flex;justify-content:space-between;align-items:center;padding:10px 30px}.logo{font-size:24px;font-weight:800;color:#F3F8FF;text-decoration:none;text-transform:uppercase;letter-spacing:1px;font-family:'Segoe UI',sans-serif;order:1;display:block}.logo:hover{color:#F2C14E;text-shadow:0 0 10px rgba(242,193,78,0.6)}.desktop-nav-buttons{margin-left:auto;display:flex;gap:12px;align-items:center;order:2}.btn{padding:8px 22px;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:1px;border-radius:4px;color:#ffffff !important;text-decoration:none;display:inline-block;background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%) !important;border:none;cursor:pointer;text-shadow:0 1px 2px rgba(0,0,0,0.3);transition:all 0.3s ease;box-shadow:0 2px 4px rgba(0,0,0,0.2)}.btn:hover{opacity:0.9;transform:translateY(-2px);box-shadow:0 4px 12px rgba(79,168,255,0.5)}.btn-dang-ky{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%) !important}.btn-dang-nhap{background:linear-gradient(180deg,#2B73F6 0%,#1144A6 100%) !important}.main-nav{background-color:#08162B;width:100%;display:flex;border-top:1px solid #1B3357}.nav-container{display:flex;flex-direction:row;justify-content:center;align-items:center;padding:8px 20px;gap:5px}.nav-link{color:#AFC4E8;text-decoration:none;font-size:13px;font-weight:600;padding:8px 12px;margin:0 2px;border-radius:3px;transition:color 0.3s,background-color 0.3s;white-space:nowrap}.nav-link:hover{color:#F3F8FF;background-color:#1B3357;text-shadow:0 0 8px rgba(79,168,255,0.4)}.site-footer{background-color:#08162B;color:#AFC4E8;padding:60px 0 20px;margin-top:40px}.footer-container{max-width:1200px;margin:0 auto;padding:0 20px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:30px;margin-bottom:30px}.footer-brand .footer-logo{font-size:22px;font-weight:800;color:#F3F8FF;text-decoration:none;text-transform:uppercase;letter-spacing:1px}.footer-brand .footer-desc{font-size:14px;color:#AFC4E8;line-height:1.6;margin-top:10px}.footer-links h4,.footer-contact h4{font-size:16px;color:#F3F8FF;margin-bottom:15px;font-weight:600}.footer-links a{display:block;color:#AFC4E8;text-decoration:none;font-size:14px;line-height:2.2}.footer-links a:hover{color:#F2C14E;text-decoration:none}.footer-contact p{color:#AFC4E8;font-size:14px;line-height:1.8}.footer-bottom{display:flex;justify-content:center;gap:20px;padding-bottom:20px;border-bottom:1px solid #1B3357}.footer-bottom a{color:#AFC4E8;text-decoration:none;font-size:14px}.footer-bottom a:hover{color:#F2C14E}.footer-copyright{text-align:center;color:#AFC4E8;font-size:13px;margin-top:20px;padding-top:20px;border-top:1px solid #1B3357}.hamburger-menu{display:none}.mobile-menu-overlay{display:none}:root{--header-offset:120px}body{padding-top:var(--header-offset)}@media (max-width:768px){:root{--header-offset:108px}body{padding-top:var(--header-offset);overflow-x:hidden}.header-top{background-color:#113B7A}.header-container{display:flex;justify-content:space-between;align-items:center;padding:10px 15px;width:100%;max-width:none}.logo{font-size:20px;color:#F3F8FF;display:block}.desktop-nav-buttons{display:flex;gap:8px}.btn{padding:8px 16px;font-size:13px}.main-nav{display:none;flex-direction:column;position:fixed;top:0;left:0;width:280px;height:100%;background-color:#08162B;z-index:1001;transform:translateX(-100%);transition:transform 0.4s ease-in-out;overflow-y:auto;box-shadow:2px 0 20px rgba(0,0,0,0.4)}.main-nav.active{display:block !important;transform:translateX(0)}.nav-container{flex-direction:column;width:100%;padding:20px;justify-content:flex-start;align-items:flex-start;margin-top:0}.nav-link{font-size:14px;padding:12px 0;width:100%;margin:0}.hamburger-menu{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:44px;height:44px;background:transparent;border:none;margin-left:0;padding:0;position:fixed;top:10px;left:15px;z-index:1002;cursor:pointer}.hamburger-menu span{display:block;width:24px;height:2px;background-color:#F3F8FF;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)}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.5);z-index:999}.mobile-menu-overlay.visible{display:block}.mobile-nav-buttons{display:flex;gap:10px;padding:8px 10px;background-color:#08162B;width:100%;justify-content:center}.mobile-nav-buttons .btn{padding:10px 18px;font-size:12px;flex:1;text-align:center}.page-content img{max-width:100% !important;height:auto !important;display:block}.page-content{overflow-x:hidden;max-width:100%}.site-footer{background-color:#08162B;padding:40px 0 10px}.footer-grid{grid-template-columns:1fr;gap:20px}.footer-logo{font-size:18px}.hamburger-menu{display:flex;top:auto;position:fixed;top:10px}.logo{order:1;flex:0 0 auto}.desktop-nav-buttons{order:2;display:flex;gap:4px}.header-container{justify-content:center}.hamburger-menu{display:flex}.desktop-nav-buttons .btn{display:inline-block;padding:6px 10px}body.no-scroll{overflow:hidden;position:fixed;width:100%}}@media (min-width:769px){.mobile-nav-buttons{display:none}}@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}}
/* 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;
}