.site-header{position:fixed;top:0;left:0;width:100%;z-index:1000;background:#ffffff;box-shadow:0 2px 12px rgba(0,0,0,.15);min-height:auto}.header-top{background:linear-gradient(90deg,#E53935 0%,#c62828 100%);width:100%;color:#ffffff}.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:68px}.logo{font-size:1.8rem;font-weight:800;color:#ffffff;text-decoration:none;text-transform:uppercase;letter-spacing:1px;display:inline-block;line-height:1.2}.desktop-nav-buttons{display:flex;gap:10px;align-items:center}.btn{display:inline-block;padding:8px 20px;border-radius:4px;font-weight:700;font-size:.9rem;text-decoration:none;text-align:center;transition:all .3s ease;border:none;cursor:pointer;min-height:36px;line-height:1.4}.btn-register{background:linear-gradient(180deg,#FF5A4F 0%,#E53935 100%);color:#ffffff;box-shadow:0 2px 8px rgba(229,57,53,.4)}.btn-register:hover{box-shadow:0 4px 12px rgba(229,57,53,.5);transform:translateY(-2px)}.btn-login{background:#ffffff;color:#E53935;border:2px solid #ffffff}.btn-login:hover{background:#E53935;color:#ffffff}.main-nav{display:flex;width:100%;background:#ffffff;border-top:1px solid #E0E0E0;border-bottom:1px solid #E0E0E0}.nav-container{max-width:1200px;margin:0 auto;display:flex;flex-direction:row;justify-content:center;align-items:center;flex-wrap:wrap;gap:4px;padding:0 20px;min-height:52px}.nav-container a{color:#333333;text-decoration:none;font-size:.85rem;font-weight:600;padding:8px 12px;border-radius:4px;transition:background .3s,color .3s;white-space:nowrap}.nav-container a:hover{background:#f5f5f5;color:#E53935}.site-footer{background:#212121;color:#ffffff;padding:48px 0 0;font-size:.9rem}.footer-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding:0 24px 40px}.footer-column .footer-logo{color:#ffffff;font-size:1.5rem;font-weight:800;text-decoration:none;display:inline-block;margin-bottom:16px;text-transform:uppercase}.footer-description{color:#bdbdbd;line-height:1.6;max-width:300px}.footer-title{color:#ffffff;font-size:1rem;font-weight:700;margin-bottom:16px;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:#bdbdbd;text-decoration:none;transition:color .3s;font-size:.875rem}.footer-nav a:hover{color:#ffffff;text-decoration:underline}.footer-bottom{background:#1a1a1a;padding:16px 24px;text-align:center}.copyright{color:#9e9e9e;font-size:.875rem;margin:0}.copyright-year{color:#E53935}
/* 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;
}