:root{--header-offset:122px;--color-primary:#2F6BFF;--color-secondary:#6FA3FF;--color-bg:#F4F7FB;--color-card:#FFFFFF;--color-text:#1F2D3D;--color-border:#D6E2FF;--color-glow:#A5C4FF;--gradient-btn:linear-gradient(180deg,#4A8BFF 0%,#2F6BFF 100%);}*{margin:0;padding:0;box-sizing:border-box;}body{padding-top:var(--header-offset);overflow-x:hidden;}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;background:#FFFFFF;box-shadow:0 2px 20px rgba(31,45,61,0.12);}.header-top{box-sizing:border-box;min-height:68px;height:68px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(135deg,#FFFFFF 0%,#E8EEFF 100%);width:100%;border-bottom:1px solid #D6E2FF;}.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:30px;padding-right:30px;}.logo{display:block;text-decoration:none;font-size:32px;font-weight:900;letter-spacing:-1px;line-height:1.2;background:linear-gradient(120deg,#1F2D3D 0%,#2F6BFF 60%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#2F6BFF;text-shadow:none;}.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;}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:25px;font-weight:700;font-size:15px;line-height:1.2;padding:12px 28px;color:#FFFFFF;background:var(--gradient-btn);border:2px solid transparent;box-shadow:0 4px 12px rgba(47,107,255,0.35);transition:all 0.3s ease;white-space:nowrap;cursor:pointer;}.btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(47,107,255,0.5);opacity:0.95;}.btn-login{background:linear-gradient(180deg,#FFFFFF 0%,#E8EEFF 100%);color:#2F6BFF;border:2px solid #2F6BFF;box-shadow:0 2px 8px rgba(47,107,255,0.2);}.btn-login:hover{background:#FFFFFF;color:#1F2D3D;border-color:#1F2D3D;}.btn-register{background:var(--gradient-btn);color:#FFFFFF;}.btn-register:hover{background:linear-gradient(180deg,#2F6BFF 0%,#1E56CC 100%);}.main-nav{box-sizing:border-box;min-height:52px;height:52px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(135deg,#2F6BFF 0%,#5B8CFF 100%);width:100%;}.nav-container{box-sizing:border-box;height:100%;width:100%;max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px;gap:4px;}.nav-link{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;color:#FFFFFF;font-size:15px;font-weight:600;padding:0 16px;height:100%;line-height:1;white-space:nowrap;position:relative;transition:color 0.2s ease,background-color 0.2s ease;border-bottom:3px solid transparent;}.nav-link:hover{color:#FFFFFF;background-color:rgba(255,255,255,0.12);border-bottom-color:#FFFFFF;}.nav-link.active{color:#FFFFFF;background-color:rgba(255,255,255,0.15);border-bottom-color:#FFFFFF;font-weight:700;}.site-footer{background:#F4F7FB;border-top:4px solid #2F6BFF;color:#1F2D3D;font-size:15px;line-height:1.7;}.footer-slot-anchor-inner{min-height:1px;}.footer-top-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:30px;max-width:1200px;margin:0 auto;padding:32px 30px 20px;}.footer-col h4{font-size:16px;font-weight:800;margin-bottom:16px;color:#2F6BFF;text-transform:uppercase;letter-spacing:0.5px;}.footer-logo{font-size:28px;font-weight:900;letter-spacing:-1px;text-decoration:none;line-height:1.1;display:inline-block;margin-bottom:12px;background:linear-gradient(120deg,#1F2D3D 0%,#2F6BFF 60%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:#2F6BFF;}.footer-description{font-size:14px;color:#4A5568;line-height:1.7;word-wrap:break-word;overflow-wrap:break-word;margin:0 0 15px;}.footer-nav{list-style:none;padding:0;margin:0;}.footer-nav li{margin-bottom:10px;}.footer-nav a{color:#4A5568;text-decoration:none;font-size:14px;transition:color 0.2s ease;line-height:1.5;display:inline-block;}.footer-nav a:hover{color:#2F6BFF;text-decoration:underline;}.footer-bottom{background:#E8EEFF;padding:18px 20px;text-align:center;border-top:1px solid #D6E2FF;}.footer-bottom p{color:#1F2D3D;font-size:14px;font-weight:600;margin:0;}.footer-mid{max-width:1200px;margin:0 auto;padding:10px 30px;}.footer-mid-row-1,.footer-mid-row-2{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;padding:10px 0;}.site-footer a:not(.footer-logo){color:#4A5568;}.site-footer a:not(.footer-logo):hover{color:#2F6BFF;}.nav-overlay{display:none;}@media (max-width:768px){:root{--header-offset:110px;}.header-top{min-height:60px !important;height:60px !important;}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:15px;}.mobile-nav-buttons{display:flex !important;align-items:center;justify-content:center;min-height:48px;width:100%;max-width:100%;box-sizing:border-box;padding-left:15px;padding-right:15px;overflow:hidden;gap:10px;flex-wrap:nowrap;background:#F4F7FB;border-bottom:1px solid #D6E2FF;}.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;}.desktop-nav-buttons{display:none !important;}.main-nav{min-height:48px !important;height:48px !important;display:none;position:fixed;top:0;left:0;right:0;bottom:auto;width:280px;max-width:85vw;height:100vh;background:#FFFFFF;flex-direction:column;justify-content:flex-start;align-items:stretch;transform:translateX(-100%);transition:transform 0.3s ease,display 0.3s ease;z-index:1001;box-shadow:2px 0 20px rgba(0,0,0,0.15);padding:80px 20px 20px;overflow-y:auto;}.main-nav.active,.main-nav.open{display:flex;transform:translateX(0);}.main-nav .nav-container{display:flex;flex-direction:column;justify-content:flex-start;align-items:center;gap:0;padding:16px 0;width:100%;height:auto;max-width:none;}.nav-link{display:block;width:100%;text-align:center;padding:15px 12px;font-size:15px;font-weight:600;color:#2F6BFF;height:auto;border-bottom:1px solid #E8EEFF;border-left:3px solid transparent;}.nav-link:last-child{border-bottom:none;}.nav-link:hover{background:#F0F5FF;color:#1F2D3D;border-left-color:#2F6BFF;border-bottom-color:#E8EEFF;}.nav-link.active{background:#F0F5FF;color:#1F2D3D;border-left:3px solid #2F6BFF;border-bottom-color:#E8EEFF;}.logo{flex:1 !important;display:flex !important;justify-content:center !important;align-items:center !important;font-size:26px;}.logo img{display:block !important;max-width:100%;height:auto;max-height:56px !important;}.nav-overlay.active{display:block;position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(31,45,61,0.5);z-index:999;animation:fadeIn 0.3s ease;}.footer-top-grid{grid-template-columns:1fr 1fr;gap:24px;padding:24px 15px 16px;}.footer-col h4{font-size:15px;}.footer-description{font-size:13px;line-height:1.6;}.footer-bottom{padding:16px 10px;}.footer-bottom p{font-size:12px;}.footer-mid{max-width:100%;padding:10px 15px;}.footer-mid-row-1,.footer-mid-row-2{grid-template-columns:repeat(2,1fr);gap:12px;}.btn{font-size:13px;}.main-nav,.main-nav.active,.main-nav.open{transition:transform 0.3s ease;}.main-nav .nav-container{max-width:100%;}}@keyframes fadeIn{from{opacity:0;}to{opacity:1;}}@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;
}