:root{--primary:#26A9E0;--secondary:#FFFFFF;--login:#EA7C07;--bg:#FFFFFF;--text:#000000;--header-offset:124px;--font-base:Arial,Helvetica,sans-serif}*{box-sizing:border-box}body{margin:0;padding-top:var(--header-offset);font-family:var(--font-base);color:var(--text);background-color:var(--bg)}.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;background-color:var(--secondary);box-shadow:0 4px 12px rgba(0,0,0,0.15);border-bottom:1px solid rgba(38,169,224,0.25)}.header-top{box-sizing:border-box;width:100%;height:68px;min-height:68px;display:flex;align-items:center;overflow:hidden;background-color:var(--secondary)}.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}.logo{display:inline-block;font-size:30px;font-weight:800;letter-spacing:0.5px;color:var(--primary);text-decoration:none;line-height:1}.logo:hover{opacity:0.9}.desktop-nav-buttons{display:flex;gap:12px;align-items:center}.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;font-weight:700;border-radius:8px;padding:10px 22px;font-size:15px;line-height:1.2;transition:transform 0.2s ease,box-shadow 0.2s ease;white-space:nowrap;border:none;cursor:pointer}.btn:hover{transform:translateY(-1px);box-shadow:0 6px 14px rgba(0,0,0,0.18)}.btn-login{background-color:var(--login);color:#FFFFFF;border:2px solid var(--login)}.btn-register{background-color:var(--primary);color:#FFFFFF;border:2px solid var(--primary)}.mobile-nav-buttons{box-sizing:border-box;display:none;min-height:48px}.main-nav{box-sizing:border-box;width:100%;height:52px;min-height:52px;display:flex;align-items:center;overflow:hidden;background-color:var(--primary)}.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;gap:6px;padding:0 20px}.nav-link{display:inline-block;color:#FFFFFF;text-decoration:none;font-size:14px;font-weight:600;padding:6px 10px;border-radius:6px;line-height:1.2;transition:background-color 0.2s ease,color 0.2s ease;white-space:nowrap}.nav-link:hover,.nav-link.active{background-color:rgba(255,255,255,0.22);color:#FFFFFF}.hamburger-menu{display:none;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;background-color:transparent;border:none;cursor:pointer;padding:0;z-index:1001}.hamburger-menu span{display:block;width:24px;height:3px;background-color:var(--primary);border-radius:2px;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)}.nav-overlay{display:none;position:fixed;inset:0;background-color:rgba(0,0,0,0.55);z-index:999;opacity:0;transition:opacity 0.3s ease}.nav-overlay.active{display:block;opacity:1}.site-footer{background-color:#0F2B38;color:#E6F4FA;padding-top:40px}.footer-container{box-sizing:border-box;width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}.footer-slot-anchor{width:100%}.footer-slot-anchor-inner{width:100%;min-height:1px}.footer-top-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;padding-bottom:12px}.footer-col{min-width:0}.footer-logo{display:inline-block;font-size:26px;font-weight:800;color:#FFFFFF;text-decoration:none;margin-bottom:14px;line-height:1}.footer-description{font-size:14px;line-height:1.7;color:#B9D8E4;margin:0;word-wrap:break-word;overflow-wrap:break-word}.footer-heading{font-size:16px;font-weight:700;color:#FFFFFF;margin:0 0 14px;padding-bottom:8px;border-bottom:2px solid var(--primary);display:inline-block}.footer-nav{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}.footer-nav li{margin:0}.footer-nav a{color:#B9D8E4;text-decoration:none;font-size:14px;line-height:1.5;transition:color 0.2s ease}.footer-nav a:hover{color:var(--primary)}.footer-dynamic-col{min-width:0}.footer-mid{padding:10px 0}.footer-mid-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.footer-bottom{background-color:#0A1E28;border-top:1px solid rgba(38,169,224,0.25);margin-top:24px;padding:16px 0}.copyright-text{font-size:13px;color:#9FC4D2;text-align:center;margin:0;line-height:1.6}@media (max-width:768px){:root{--header-offset:110px}.page-content img{max-width:100% !important;height:auto !important;display:block}.page-content{overflow-x:hidden;max-width:100%}body{overflow-x:hidden}.header-top{min-height:60px !important;height:60px !important}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:15px;position:relative}.hamburger-menu{display:flex;position:absolute;left:8px;top:50%;transform:translateY(-50%);z-index:1002}.logo{position:absolute;left:50%;transform:translateX(-50%);display:flex !important;align-items:center;justify-content:center;max-width:calc(100% - 120px);font-size:24px}.desktop-nav-buttons{display:none !important}.mobile-nav-buttons{display:flex !important;min-height:48px;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}.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;min-height:48px;height:auto;position:fixed;top:var(--header-offset);left:0;width:82%;max-width:320px;background-color:var(--primary);z-index:1001;transform:translateX(-100%);transition:transform 0.3s ease;box-shadow:4px 0 16px rgba(0,0,0,0.25);overflow-y:auto;max-height:calc(100vh - var(--header-offset))}.main-nav.active{display:flex;transform:translateX(0)}.nav-container{width:100%;max-width:none;height:auto;flex-direction:column;justify-content:flex-start;align-items:stretch;gap:0;padding:10px}.nav-link{display:block;width:100%;box-sizing:border-box;padding:12px 14px;font-size:15px;border-radius:6px}.footer-top-grid{grid-template-columns:1fr;gap:24px}.footer-mid-grid{grid-template-columns:1fr 1fr;gap:16px}.footer-container{padding-left:15px;padding-right:15px}.footer-heading{font-size:15px}}
/* 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;
}