:root{--header-offset:166px;--primary:#FF8C1A;--secondary:#FFA53A;--card-bg:#17191F;--bg-color:#0D0E12;--text-main:#FFF3E6;--border-color:#A84F0C;--glow:#FFB04D;--deep-orange:#D96800;--btn-gradient:linear-gradient(180deg,#FFA53A 0%,#D96800 100%);--header-top-bg:linear-gradient(135deg,#12141A 0%,#1F2128 100%);--nav-bg:linear-gradient(135deg,#1A1C23 0%,#24262E 100%);--header-top-height:68px;--main-nav-height:52px;--marquee-height:44px;--mobile-header-top-height:60px;--mobile-nav-buttons-height:48px;--mobile-marquee-height:36px;--mobile-header-offset:146px;}body{margin:0;padding-top:var(--header-offset);background-color:var(--bg-color);color:var(--text-main);font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif;line-height:1.6;overflow-x:hidden;}a{color:inherit;text-decoration:none;}*,*::before,*::after{box-sizing:border-box;}.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;min-height:auto;background-color:#1F2128;box-shadow:0 4px 20px rgba(0,0,0,0.5);}.header-top{background:var(--header-top-bg);width:100%;min-height:var(--header-top-height);}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:24px;padding-right:24px;min-height:var(--header-top-height);}.logo{font-size:2.2rem;font-weight:900;color:#FFFFFF;letter-spacing:1px;text-shadow:0 0 15px rgba(255,140,26,0.4);display:inline-block;text-decoration:none;}.header-actions{display:flex;align-items:center;gap:12px;}.btn{display:inline-block;padding:10px 22px;border-radius:30px;font-weight:700;font-size:0.9rem;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:all 0.3s ease;box-shadow:0 4px 12px rgba(0,0,0,0.2);border:1px solid rgba(255,255,255,0.1);}.btn-register,.btn-login{background:var(--btn-gradient);color:#0D0E12;}.btn-register:hover,.btn-login:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,140,26,0.4);}.main-nav{background:var(--nav-bg);width:100%;display:flex;min-height:var(--main-nav-height);box-shadow:0 4px 15px rgba(0,0,0,0.3);}.nav-container{max-width:1200px;margin:0 auto;display:flex;justify-content:center;align-items:center;padding:0 20px;flex-wrap:wrap;gap:4px 2px;}.nav-link{display:inline-block;padding:8px 14px;color:#FFF3E6;font-size:0.95rem;font-weight:500;text-decoration:none;transition:all 0.3s ease;border-radius:6px;position:relative;white-space:nowrap;}.nav-link:hover,.nav-link.active{color:#FFB04D;background:rgba(255,140,26,0.1);}.mobile-nav-buttons{display:none;background:linear-gradient(135deg,#12141A,#1F2128);padding:8px 16px;justify-content:center;gap:10px;min-height:var(--mobile-nav-buttons-height);}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.7);z-index:999;backdrop-filter:blur(4px);}.site-footer{background:#12141A;color:#FFF3E6;padding-top:60px;border-top:4px solid var(--deep-orange);}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 1fr 1.5fr;gap:40px;padding:0 24px 40px;}.footer-logo{font-size:2rem;font-weight:900;color:#FFFFFF;text-decoration:none;display:inline-block;margin-bottom:15px;text-shadow:0 0 10px rgba(255,140,26,0.3);}.footer-desc{color:#BFC9D4;font-size:0.9rem;line-height:1.6;max-width:300px;}.footer-heading{font-size:1rem;font-weight:700;color:#FFA53A;margin-bottom:20px;text-transform:uppercase;letter-spacing:1px;}.footer-nav{display:flex;flex-direction:column;gap:12px;}.footer-link{color:#BFC9D4;font-size:0.9rem;text-decoration:none;transition:color 0.3s ease;padding:2px 0;}.footer-link:hover{color:#FFA53A;text-decoration:underline;}.footer-bottom{border-top:1px solid #2A2D36;padding:15px 24px;text-align:center;font-size:0.85rem;background:#1A1C23;}.copyright-text{margin:0;color:#BFC9D4;}@media (max-width:768px){:root{--header-offset:146px;}body{padding-top:var(--header-offset);overflow-x:hidden;}.site-header{box-shadow:0 2px 12px rgba(0,0,0,0.4);}.header-top{min-height:var(--mobile-header-top-height);}.header-container{width:100%;max-width:none;padding-left:10px;padding-right:10px;min-height:var(--mobile-header-top-height);display:grid;grid-template-columns:1fr auto 1fr;align-items:center;}.logo{font-size:1.6rem;text-align:center;}.header-actions{display:none;}.main-nav{display:none;flex-direction:column;position:fixed;top:0;left:0;width:280px;height:100vh;background:#1F2128;transform:translateX(-100%);transition:transform 0.3s ease-in-out;overflow-y:auto;padding-top:70px;box-shadow:4px 0 20px rgba(0,0,0,0.5);z-index:1001;}.main-nav.active{display:flex;transform:translateX(0);}.nav-container{flex-direction:column;align-items:flex-start;justify-content:flex-start;width:100%;max-width:none;padding:15px;gap:4px;}.nav-link{width:100%;font-size:1rem;padding:12px 15px;border-bottom:1px solid rgba(255,255,255,0.05);}.mobile-nav-buttons{display:flex;align-items:center;min-height:var(--mobile-nav-buttons-height);background:linear-gradient(135deg,#12141A,#1F2128);box-shadow:0 2px 8px rgba(0,0,0,0.3);}.btn{flex:1;text-align:center;padding:10px 10px;font-size:0.8rem;border-radius:20px;}.mobile-menu-overlay.active{display:block;}.site-footer{padding-top:40px;}.footer-container{grid-template-columns:1fr;gap:30px;text-align:center;padding:0 15px 30px;}.footer-logo{margin:0 auto 10px;}.footer-desc{max-width:260px;margin:0 auto;}.footer-nav{align-items:center;gap:8px;}.footer-bottom{padding:15px 10px;font-size:0.75rem;}.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;
}