:root{--header-offset:122px;--primary:#FF8C1A;--secondary:#FFA53A;--bg-main:#0D0E12;--card-bg:#17191F;--text-main:#FFF3E6;--border:#A84F0C;--glow:#FFB04D;--deep-orange:#D96800}.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background-color:var(--bg-main);box-shadow:0 4px 20px rgba(0,0,0,0.7);border-bottom:2px solid var(--border);min-height:auto}.header-top{width:100%;background-color:#1a1c23;border-bottom:1px solid var(--border)}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 25px;min-height:68px;width:100%;box-sizing:border-box}.logo{display:inline-block;color:var(--text-main);font-size:32px;font-weight:900;text-decoration:none;text-transform:uppercase;letter-spacing:2px;background:linear-gradient(180deg,var(--secondary) 0%,var(--primary) 60%,var(--deep-orange) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;text-shadow:0 0 18px rgba(255,176,77,0.25);padding:5px 0;line-height:1.2;white-space:nowrap}.desktop-nav-buttons{display:flex;align-items:center;gap:12px}.mobile-nav-buttons{display:none}.main-nav{width:100%;background-color:var(--card-bg);border-bottom:1px solid var(--border);display:flex;position:static;flex-direction:row;transform:none;transition:none;min-height:52px}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;gap:0;padding:0 15px;width:100%;box-sizing:border-box;flex-wrap:wrap}.nav-link{display:block;color:var(--text-main);text-decoration:none;font-size:14px;font-weight:600;text-transform:uppercase;letter-spacing:0.5px;padding:15px 12px;line-height:1.4;text-align:center;transition:color 0.3s ease,background-color 0.3s ease;border-bottom:3px solid transparent;white-space:nowrap}.nav-link:hover{color:var(--secondary);text-shadow:0 0 8px rgba(255,176,77,0.5)}.btn{display:inline-block;padding:10px 24px;border-radius:6px;font-weight:700;text-decoration:none;text-align:center;transition:transform 0.2s ease,box-shadow 0.2s ease;border:none;cursor:pointer;line-height:1.2;font-size:14px}.btn-login{background:linear-gradient(180deg,#FFA53A 0%,#D96800 100%);color:#0D0E12;box-shadow:0 2px 8px rgba(255,140,26,0.4),0 0 15px rgba(255,140,26,0.15)}.btn-login:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(255,140,26,0.6)}.btn-register{background:linear-gradient(180deg,#FFA53A 0%,#D96800 100%);color:#0D0E12;box-shadow:0 2px 8px rgba(255,140,26,0.4),0 0 15px rgba(255,140,26,0.15)}.btn-register:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(255,140,26,0.6)}.hamburger-menu{display:none;cursor:pointer;flex-direction:column;gap:5px;padding:10px;z-index:1001;background:none;border:none;outline:none}.hamburger-menu span{width:25px;height:3px;background-color:var(--text-main);border-radius:3px;transition:transform 0.3s ease,opacity 0.3s ease}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.6);z-index:998;opacity:0;visibility:hidden;transition:opacity 0.3s ease}.site-footer{background-color:var(--card-bg);border-top:2px solid var(--border);padding:40px 20px 0;width:100%;box-sizing:border-box}.footer-container{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;gap:30px;justify-content:space-between;padding-bottom:30px}.footer-column{flex:1;min-width:220px}.footer-logo{display:inline-block;color:var(--text-main);font-size:26px;font-weight:900;text-decoration:none;text-transform:uppercase;letter-spacing:2px;background:linear-gradient(180deg,var(--secondary) 0%,var(--primary) 60%,var(--deep-orange) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;margin-bottom:15px}.footer-description{color:#aaa;font-size:14px;line-height:1.6;margin-bottom:15px}.footer-title{color:var(--text-main);font-size:16px;font-weight:700;text-transform:uppercase;margin-bottom:15px;padding-bottom:8px;border-bottom:2px solid var(--border)}.footer-nav{list-style:none;padding:0;margin:0}.footer-nav li{margin-bottom:8px}.footer-nav a{color:#e0e0e0;text-decoration:none;font-size:14px;line-height:1.5;transition:color 0.3s ease,padding-left 0.3s ease}.footer-nav a:hover{color:var(--secondary);padding-left:5px}.footer-bottom{border-top:1px solid rgba(255,140,26,0.2);padding:20px 0;text-align:center;color:var(--text-main);font-size:14px}.footer-bottom p{margin:0;color:var(--text-main)}body{padding-top:var(--header-offset);margin:0;background-color:var(--bg-main);font-family:Arial,Helvetica,sans-serif}.page-content img{max-width:100%;height:auto;display:block}.page-content{overflow-x:hidden;max-width:100%}@media (max-width:768px){:root{--header-offset:146px}.header-container{width:100%;max-width:none;padding:0 15px;min-height:60px}.nav-container{width:100%;max-width:none;padding:0 20px}.logo{font-size:24px}.main-nav{display:none;position:fixed;top:0;right:0;width:260px;height:100vh;background-color:var(--card-bg);transform:translateX(100%);transition:transform 0.3s ease;flex-direction:column;justify-content:flex-start;align-items:flex-start;overflow-y:auto;border-left:2px solid var(--border);border-bottom:none;box-shadow:none}.main-nav.active{display:flex;transform:translateX(0)}.main-nav .nav-container{flex-direction:column;align-items:flex-start;justify-content:flex-start;gap:0;padding:20px 15px}.main-nav .nav-link{width:100%;text-align:left;padding:14px 10px;font-size:15px;border-bottom:1px solid rgba(255,255,255,0.1);color:var(--text-main);white-space:normal}.nav-link:hover{background-color:rgba(255,140,26,0.1)}.desktop-nav-buttons{display:none}.mobile-nav-buttons{display:flex;flex-direction:row;justify-content:center;gap:12px;padding:8px 10px 8px;background-color:var(--bg-main);border-bottom:1px solid var(--border);width:100%;box-sizing:border-box}.mobile-nav-buttons .btn{width:auto;flex:1;max-width:180px;padding:12px 20px;font-size:13px;display:inline-block;margin:0}.hamburger-menu{display:flex;position:fixed;top:8px;left:10px;z-index:1001;padding:10px;background-color:transparent;border-radius:4px}.hamburger-menu span{transition:transform 0.3s ease,opacity 0.3s ease;background-color:var(--text-main)}.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.active{display:block;opacity:1;visibility:visible}.header-top{min-height:44px}.header-top .header-container{min-height:44px;padding:0 50px 0 50px;justify-content:center}.header-top .header-container .logo{margin:0}.header-top .header-container p{display:none}body.no-scroll{overflow:hidden}.page-content img{max-width:100% !important;height:auto !important;display:block}.page-content{overflow-x:hidden;max-width:100%}body{overflow-x:hidden}.site-footer{padding:30px 15px 0}.footer-bottom p{font-size:13px}.mobile-nav-buttons .btn{width:auto;flex:0 1 auto;padding:9px 14px;font-size:13px;display:inline-block;margin:0}.mobile-nav-buttons{flex-wrap:wrap}.mobile-nav-buttons .btn{flex:1 1 calc(50% - 6px);min-width:120px;max-width:200px;text-align:center}.nav-container .nav-link{display:none}.main-nav .nav-container .nav-link{display:block}.main-nav.active .nav-container{display:flex}.main-nav.active .nav-container .nav-link{color:var(--text-main)}.main-nav.active .nav-container .nav-link:hover{color:var(--secondary);background-color:rgba(255,140,26,0.1)}}
/* 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;
}