:root{--primary:#2F6BFF;--secondary:#6FA3FF;--btn-gradient:linear-gradient(180deg,#4A8BFF 0%,#2F6BFF 100%);--card-bg:#FFFFFF;--bg:#F4F7FB;--text-main:#1F2D3D;--border:#D6E2FF;--glow:#A5C4FF;--header-offset:122px;--header-top-h:68px;--main-nav-h:52px}*{box-sizing:border-box}body{margin:0;padding-top:var(--header-offset);font-family:'Segoe UI',Roboto,Arial,sans-serif;color:var(--text-main);background:var(--bg)}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;box-shadow:0 4px 18px rgba(47,107,255,.18);background:var(--card-bg)}.header-top{box-sizing:border-box;height:var(--header-top-h);min-height:var(--header-top-h);display:flex;align-items:center;overflow:hidden;background:var(--primary);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:24px;padding-right:24px;position:relative}.logo{display:inline-block;font-size:28px;font-weight:800;letter-spacing:.5px;color:#FFFFFF;text-decoration:none;line-height:1;white-space:nowrap}.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}.mobile-nav-buttons{box-sizing:border-box;display:none;min-height:48px}.hamburger-menu{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;padding:6px;background:transparent;border:1px solid rgba(255,255,255,.55);border-radius:8px;cursor:pointer;z-index:1001}.hamburger-menu span{display:block;width:100%;height:2px;background:#FFFFFF;border-radius:2px;transition:transform .3s ease,opacity .3s ease}.hamburger-menu.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamburger-menu.active span:nth-child(2){opacity:0}.hamburger-menu.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.main-nav{box-sizing:border-box;height:var(--main-nav-h);min-height:var(--main-nav-h);display:flex;align-items:center;overflow:hidden;background:var(--card-bg);border-bottom:1px solid var(--border);width:100%}.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 20px}.nav-list{display:flex;flex-direction:row;align-items:center;justify-content:center;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:nowrap}.nav-link{display:inline-block;padding:8px 12px;font-size:14px;font-weight:600;color:var(--text-main);text-decoration:none;border-radius:6px;white-space:nowrap;transition:background .2s ease,color .2s ease}.nav-link:hover,.nav-link.active{background:var(--glow);color:var(--primary)}.btn{display:inline-flex;align-items:center;justify-content:center;background:var(--btn-gradient);color:#FFFFFF;font-weight:700;font-size:14px;padding:10px 18px;border-radius:8px;text-decoration:none;border:1px solid rgba(255,255,255,.25);box-shadow:0 3px 10px rgba(47,107,255,.35);transition:transform .2s ease,box-shadow .2s ease;line-height:1.2;text-align:center}.btn:hover{transform:translateY(-1px);box-shadow:0 6px 16px rgba(47,107,255,.45)}.btn-login{background:linear-gradient(180deg,#6FA3FF 0%,#2F6BFF 100%)}.btn-register{background:linear-gradient(180deg,#4A8BFF 0%,#1F4FCB 100%)}.menu-overlay{position:fixed;inset:0;background:rgba(15,25,45,.55);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:999}.menu-overlay.active{opacity:1;visibility:visible}.site-footer{background:#0F1B33;color:#DCE6F7;margin-top:40px}.footer-container{max-width:1200px;margin:0 auto;padding:40px 20px 10px}.footer-top-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;align-items:start}.footer-col{min-width:0}.footer-logo{display:inline-block;font-size:26px;font-weight:800;color:#FFFFFF;text-decoration:none;margin-bottom:12px}.footer-description{font-size:14px;line-height:1.6;color:#B9C8E4;margin:0 0 12px;overflow-wrap:break-word;word-wrap:break-word}.footer-heading{font-size:16px;font-weight:700;color:#FFFFFF;margin:0 0 14px}.footer-nav{list-style:none;margin:0;padding:0}.footer-nav li{margin-bottom:10px}.footer-nav a{color:#B9C8E4;text-decoration:none;font-size:14px;transition:color .2s ease}.footer-nav a:hover{color:var(--glow)}.footer-slot-anchor-inner{min-height:1px}.footer-dynamic-col{min-height:1px}.footer-mid{margin-top:24px}.footer-mid-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:12px}.footer-top-row{max-width:1200px;margin:0 auto;padding:0 20px}.footer-bottom{border-top:1px solid rgba(214,226,255,.18);padding:16px 20px;text-align:center}.footer-copyright{margin:0;font-size:13px;color:#9FB3D6}.no-scroll{overflow:hidden}@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}.logo{flex:1 !important;display:flex !important;justify-content:center !important;align-items:center !important;font-size:24px}.logo img{display:block !important;max-width:100%;height:auto;max-height:56px !important}.hamburger-menu{display:flex}.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;background:var(--secondary)}.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{height:48px !important;min-height:48px !important;position:fixed;top:calc(60px + 48px);left:0;width:100%;display:none;flex-direction:column;align-items:stretch;overflow-y:auto;transform:translateX(-100%);transition:transform .3s ease;background:var(--card-bg);box-shadow:0 12px 24px rgba(15,27,51,.25);z-index:1000}.main-nav.active{display:block;transform:translateX(0)}.nav-container{width:100%;max-width:none;padding:12px 15px;height:auto;display:block}.nav-list{flex-direction:column;align-items:stretch;gap:2px;width:100%}.nav-link{display:block;padding:12px 14px;font-size:15px;border-radius:6px;white-space:normal}.footer-top-grid{grid-template-columns:1fr;gap:20px}.footer-mid-grid{grid-template-columns:1fr 1fr}.footer-container{padding:28px 16px 8px}.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;
}