.site-header{position:fixed;top:0;left:0;right:0;width:100%;z-index:1000;box-shadow:0 4px 20px rgba(0,0,0,.3);font-family:'Segoe UI',Roboto,sans-serif}.header-top{background-color:#0D0E12;width:100%;border-bottom:2px solid #A84F0C}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;padding-left:30px;padding-right:30px;min-height:68px}.logo{font-size:1.8rem;font-weight:800;color:#FFA53A;text-decoration:none;letter-spacing:1px;text-transform:uppercase;order:1;padding:5px 0;text-shadow:0 2px 8px rgba(255,176,77,.3)}.logo:hover{color:#FFB04D;text-decoration:none}.desktop-nav-buttons{display:flex;gap:12px;align-items:center;order:2}.btn{text-decoration:none!important;padding:10px 18px;border-radius:6px;font-weight:700;font-size:.9rem;border:none;cursor:pointer;display:inline-block;transition:transform .2s,box-shadow .2s,opacity .2s;text-align:center;min-height:40px;line-height:1.2;box-sizing:border-box}.btn:hover{transform:translateY(-2px);box-shadow:0 4px 15px rgba(255,176,77,.4);text-decoration:none}.btn-login{background:linear-gradient(180deg,#FFA53A,#D96800);color:#0D0E12;border:1px solid #FFA53A}.btn-register{background:linear-gradient(180deg,#FFA53A 0%,#D96800 100%);color:#0D0E12;border:1px solid #FFA53A}.btn-download{background:linear-gradient(180deg,#FFA53A 0%,#D96800 100%);color:#0D0E12;border:1px solid #FFA53A}.main-nav{background-color:#17191F;width:100%;display:flex;position:static;top:auto;z-index:auto}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;padding:10px 20px;gap:4px;flex-wrap:wrap}.nav-link{color:#FFF3E6;font-size:.95rem;font-weight:500;text-decoration:none;padding:8px 14px;border-radius:4px;transition:background .2s,color .2s;white-space:nowrap}.nav-link:hover{background-color:#FFA53A;color:#0D0E12;text-decoration:none}.nav-link.active{background-color:#FF8C1A;color:#0D0E12;font-weight:700}.hamburger-menu{display:none}.mobile-menu-overlay{display:none}.mobile-nav-buttons{display:none}.site-footer{background-color:#0D0E12;color:#FFF3E6;padding:50px 0 0;font-family:'Segoe UI',Roboto,sans-serif;border-top:3px solid #A84F0C}.footer-container{max-width:1200px;margin:0 auto;display:flex;flex-wrap:wrap;gap:40px;padding:0 30px 40px;justify-content:space-between}.footer-column{flex:1;min-width:200px}.footer-info{max-width:300px}.footer-logo{font-size:1.6rem;font-weight:800;color:#FFA53A;text-decoration:none;text-transform:uppercase;letter-spacing:1px;display:inline-block;margin-bottom:15px}.footer-logo:hover{color:#FFB04D}.footer-desc{font-size:.9rem;line-height:1.6;color:#B0A090}.footer-title{color:#FFA53A;font-size:1rem;margin-bottom:15px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.footer-nav{list-style:none;padding:0;margin:0}.footer-nav li{margin-bottom:10px}.footer-nav a{color:#FFF3E6;text-decoration:none;font-size:.9rem;transition:color .2s,padding-left .2s}.footer-nav a:hover{color:#FFB04D;padding-left:5px}.footer-bottom{border-top:1px solid rgba(255,163,74,.2);padding:20px 0;text-align:center;background-color:#08090c}.footer-bottom p{margin:0;color:#FFF3E6;font-size:.85rem}.footer-bottom a{color:#FFA53A;text-decoration:none}@media (max-width:768px){:root{--header-offset:146px}body{padding-top:var(--header-offset)}.page-content{overflow-x:hidden;max-width:100%}.page-content img{max-width:100%!important;height:auto!important;display:block}body{overflow-x:hidden}.site-header{min-height:60px}.header-container{width:100%;max-width:none;padding-left:15px;padding-right:15px;min-height:60px;justify-content:center;position:relative}.header-top{border-bottom:1px solid #A84F0C}.logo{position:absolute;left:50%;transform:translateX(-50%);font-size:1.4rem;padding:8px 0;z-index:4;order:0}.desktop-nav-buttons{display:none}.main-nav{display:none;position:fixed;top:0;left:0;width:280px;height:100%;background-color:#17191F;flex-direction:column;justify-content:flex-start;z-index:1002;transform:translateX(-100%);transition:transform .3s ease;box-shadow:4px 0 20px rgba(0,0,0,.5);overflow-y:auto}.main-nav.active{display:flex;transform:translateX(0)}.nav-container{width:100%;max-width:none;flex-direction:column;justify-content:flex-start;align-items:stretch;padding:20px 15px;gap:10px}.nav-link{padding:14px 20px;font-size:1rem;border-radius:6px;text-align:left;color:#FFF3E6;border-bottom:1px solid rgba(255,163,74,.1)}.nav-link:hover{background-color:#FF8C1A;color:#fff}.nav-link.active{background-color:#FFA53A;color:#0D0E12}.hamburger-menu{display:flex;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;cursor:pointer;position:absolute;top:8px;left:15px;z-index:1003;background:transparent;border:none;align-items:center}.hamburger-menu span{display:block;width:22px;height:2px;background-color:#FFA53A;transition:all .3s ease;border-radius:2px}.hamburger-menu.active span:nth-child(1){transform:translateY(6px) rotate(45deg);background-color:#fff}.hamburger-menu.active span:nth-child(2){opacity:0}.hamburger-menu.active span:nth-child(3){transform:translateY(-6px) rotate(-45deg);background-color:#fff}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,.6);z-index:1001;opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s}.mobile-menu-overlay.active{opacity:1;visibility:visible}.mobile-nav-buttons{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;width:100%;background-color:#17191F;padding:6px 10px;z-index:1000;position:relative;box-shadow:0 2px 10px rgba(0,0,0,.4)}.mobile-nav-buttons .btn{flex:1;min-width:80px;padding:8px 10px;font-size:.8rem;margin:0}.site-footer{padding-top:40px}.footer-container{flex-direction:column;gap:25px;padding:0 20px 30px}.footer-info{max-width:100%}.footer-column{min-width:0}}
/* 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;
}