:root{--primary:#FF8C1A;--secondary:#FFA53A;--card-bg:#17191F;--bg:#0D0E12;--text-main:#FFF3E6;--border:#A84F0C;--glow:#FFB04D;--deep-orange:#D96800;--header-offset:122px;--grad-btn:linear-gradient(180deg,#FFA53A 0%,#D96800 100%)}.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background-color:var(--bg);box-shadow:0 4px 20px rgba(0,0,0,.6),0 0 0 1px rgba(168,79,12,.3);min-height:auto;display:block}.header-top{background:#14151A;width:100%;border-bottom:2px solid var(--deep-orange)}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding:0 30px;min-height:68px}.logo{display:inline-flex;align-items:center;text-decoration:none;font-size:2.2rem;font-weight:900;letter-spacing:.05em;color:#fff;background:var(--grad-btn);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;transition:opacity .3s ease;text-shadow:0 2px 10px rgba(255,176,77,.3)}.logo:hover{opacity:.85}.logo-text{display:block}.desktop-nav-buttons{display:flex;gap:12px;align-items:center}.btn{display:inline-flex;align-items:center;justify-content:center;padding:10px 24px;border-radius:50px;font-weight:600;font-size:.9rem;text-decoration:none!important;cursor:pointer;transition:all .3s ease;white-space:nowrap;border:none;letter-spacing:.02em}.btn-register{background:var(--grad-btn);color:#0D0E12;box-shadow:0 4px 15px rgba(255,140,26,.4)}.btn-register:hover{background:linear-gradient(180deg,#FFB04D 0%,#D96800 100%);color:#000;transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,176,77,.5)}.btn-login{background:rgba(255,140,26,.1);color:var(--text-main);border:1.5px solid var(--deep-orange);backdrop-filter:none}.btn-login:hover{background:var(--deep-orange);color:#fff;transform:translateY(-2px);box-shadow:0 8px 25px rgba(255,140,26,.4)}.main-nav{background:#1A1C24;width:100%;display:block;border-bottom:1px solid rgba(168,79,12,.4)}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:0 20px;min-height:52px;gap:0}.nav-link{color:var(--text-main);text-decoration:none;font-size:.95rem;font-weight:500;padding:0 18px;line-height:52px;transition:color .3s ease;position:relative;white-space:nowrap;letter-spacing:.01em}.nav-link:hover{color:var(--glow)}.nav-link.active{color:var(--glow)}.nav-link.active::after{content:'';position:absolute;bottom:0;left:18px;right:18px;height:3px;background:var(--grad-btn);border-radius:2px}.mobile-nav-buttons{display:none}.hamburger-menu{display:none}.mobile-menu-overlay{display:none}body{padding-top:var(--header-offset);margin:0;font-family:'Segoe UI',Tahoma,Geneva,Verdana,sans-serif}.site-footer{background-color:#101116;color:#b8b8c0;padding:60px 20px 0;border-top:3px solid var(--deep-orange)}.footer-container{max-width:1200px;margin:0 auto}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px}.footer-brand{display:flex;flex-direction:column;gap:15px}.footer-logo{font-size:2.2rem;font-weight:900;color:var(--glow);text-decoration:none;letter-spacing:.03em;line-height:1}.footer-desc{font-size:.9rem;line-height:1.7;max-width:400px;color:rgba(255,243,230,.7)}.footer-title{color:var(--text-main);font-size:1.1rem;font-weight:600;margin-bottom:20px;position:relative;padding-bottom:10px;letter-spacing:.05em}.footer-title::after{content:'';position:absolute;bottom:0;left:0;width:30px;height:2px;background:var(--grad-btn)}.footer-nav{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.footer-nav li{line-height:1}.footer-nav a{color:#b8b8c0;text-decoration:none;font-size:.9rem;transition:color .3s ease;padding:3px 0;display:inline-block}.footer-nav a:hover{color:var(--glow);text-decoration:none;transform:translateX(4px)}.footer-copyright{border-top:1px solid rgba(168,79,12,.3);padding:20px 0;text-align:center;color:rgba(255,243,230,.5);font-size:.85rem}.footer-copyright a{color:var(--glow);text-decoration:none}@media(max-width:768px){:root{--header-offset:110px}.header-container{width:100%;max-width:none;padding:0 15px;min-height:60px}.nav-container{width:100%;max-width:none;padding:0}.main-nav{display:none;flex-direction:column;position:fixed;top:0;left:0;height:100%;width:300px;max-width:85%;background:#1A1C24;z-index:1002;transform:translateX(-100%);transition:transform .3s ease;border-right:2px solid var(--deep-orange);border-bottom:none;overflow-y:auto}.main-nav.active{display:flex;transform:translateX(0)}.nav-container{flex-direction:column;align-items:flex-start;padding:20px}.nav-link{width:100%;text-align:left;padding:0 0 16px 0;line-height:1.4;font-size:1rem}.nav-link.active::after{display:none}.site-header{display:flex;flex-direction:row;align-items:center;justify-content:space-between;flex-wrap:wrap;background-color:var(--bg)}.header-top{width:100%;order:1;background:#14151A}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}100%{opacity:1;transform:translateY(0)}}.header-top .header-container{animation:slideDown .4s ease}.main-nav{order:3}.hamburger-menu{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:6px;width:44px;height:44px;border:none;background:transparent;cursor:pointer;z-index:1003;order:1;position:fixed;top:8px;left:12px;padding:0;margin:0}.hamburger-menu span{display:block;width:28px;height:3px;border-radius:2px;background:var(--glow);transition:all .35s ease}.hamburger-menu.active span:nth-child(1){transform:translateY(9px) rotate(45deg)}.hamburger-menu.active span:nth-child(2){opacity:0;transform:translateX(-10px)}.hamburger-menu.active span:nth-child(3){transform:translateY(-9px) rotate(-45deg)}.mobile-menu-overlay{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.8);z-index:1000;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease}.mobile-menu-overlay.active{display:block;opacity:1;visibility:visible}.mobile-nav-buttons{display:flex;flex-direction:row;justify-content:center;gap:12px;padding:8px 15px 12px;background:#14151A;border-bottom:2px solid var(--deep-orange);width:100%;box-sizing:border-box;min-height:48px;align-items:center;z-index:1001;position:relative;order:2}.mobile-nav-buttons .btn{flex:1;max-width:180px;padding:10px 16px;font-size:.9rem;justify-content:center;text-align:center}.logo{font-size:1.8rem;padding:10px 0;position:relative;z-index:1001}.header-top .header-container{justify-content:center}.desktop-nav-buttons{display:none}.footer-grid{grid-template-columns:1fr;gap:30px}.footer-brand{align-items:center;text-align:center}.footer-desc{margin:0 auto}.footer-nav{align-items:center}.footer-nav a:hover{transform:none}.page-content img{max-width:100%!important;height:auto!important;display:block}.page-content{overflow-x:hidden;max-width:100%}body{overflow-x:hidden;background-color:var(--bg)}.footer-copyright{padding:15px 0;font-size:.8rem}}
/* 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;
}