:root { --header-offset: 166px; --primary: #F2C14E; --primary-light: #FFD36B; --button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); --card-bg: #111111; --bg-dark: #0A0A0A; --text-main: #FFF6D6; --border-color: #3A2A12; --glow-color: #FFD36B; }
body { padding-top: var(--header-offset); margin: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--bg-dark); color: var(--text-main); }
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background-color: var(--bg-dark); box-shadow: 0 4px 20px rgba(0,0,0,0.7), 0 0 15px rgba(242,193,78,0.2); border-bottom: 2px solid var(--border-color); }
.header-top { width: 100%; background-color: #1A1A1A; border-bottom: 1px solid var(--border-color); }
.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 { color: var(--text-main); font-size: 1.6rem; font-weight: 800; text-decoration: none; letter-spacing: 1px; display: inline-flex; align-items: center; gap: 2px; text-shadow: 0 0 12px rgba(242,193,78,0.5); }
.logo-accent { color: var(--primary); font-weight: 900; text-transform: uppercase; }
.desktop-nav-buttons { display: flex; gap: 12px; align-items: center; }
.btn { text-decoration: none; padding: 10px 22px; border-radius: 8px; font-weight: 700; font-size: 0.9rem; display: inline-block; transition: all 0.3s ease; border: none; cursor: pointer; text-align: center; }
.btn-download { background: linear-gradient(135deg, #0A0A0A 0%, #2A2A2A 100%); color: var(--primary); border: 1px solid var(--primary); }
.btn-download:hover { background: linear-gradient(135deg, #1A1A1A 0%, #3A3A3A 100%); box-shadow: 0 0 15px rgba(242,193,78,0.4); transform: translateY(-2px); }
.btn-register { background: var(--button-gradient); color: #1A0A00; box-shadow: 0 4px 15px rgba(242,193,78,0.3); }
.btn-register:hover { box-shadow: 0 6px 20px rgba(242,193,78,0.5); transform: translateY(-2px); }
.main-nav { width: 100%; background-color: #1A1A1A; display: flex; position: static; z-index: auto; }
.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; width: 100%; }
.nav-menu { display: flex; flex-direction: row; list-style: none; margin: 0; padding: 0; gap: 5px; }
.nav-item { list-style: none; }
.nav-link { color: var(--text-main); text-decoration: none; font-weight: 600; padding: 10px 14px; font-size: 0.88rem; display: inline-block; transition: color 0.3s ease, background 0.3s ease; border-radius: 6px 6px 0 0; border-bottom: 2px solid transparent; letter-spacing: 0.3px; }
.nav-link:hover { color: var(--primary); background-color: rgba(242,193,78,0.1); }
.nav-link.active { color: var(--primary); border-bottom-color: var(--primary); }
.btn-promo-link { color: var(--primary); }
.mobile-nav-buttons { display: none; }
.hamburger-menu { display: none; }
.mobile-menu-overlay { display: none; }
.site-footer { background-color: #0A0A0A; border-top: 3px solid var(--border-color); padding: 50px 20px 20px; margin-top: 60px; }
.footer-container { max-width: 1200px; margin: 0 auto; display: grid; grid-template-columns: 1.5fr 1fr 1.2fr 1fr; gap: 40px; }
.footer-brand .footer-logo { color: var(--text-main); font-size: 1.8rem; font-weight: 800; text-decoration: none; letter-spacing: 1px; }
.footer-description { color: #B8A888; font-size: 0.9rem; line-height: 1.6; margin-top: 15px; }
.footer-copyright { color: #B8A888; font-size: 0.85rem; margin-top: 20px; }
.footer-title { color: var(--primary); font-size: 1.1rem; font-weight: 700; margin-bottom: 20px; position: relative; padding-bottom: 8px; }
.footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 2px; background-color: var(--primary); }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #D4C8AC; text-decoration: none; font-size: 0.9rem; transition: color 0.3s ease, padding-left 0.3s ease; }
.footer-links a:hover { color: var(--primary); padding-left: 6px; }
.footer-contact-item { display: flex; align-items: center; gap: 10px; color: #D4C8AC; font-size: 0.9rem; margin-bottom: 10px; }
.footer-warning { color: #A09080; font-size: 0.8rem; margin-top: 25px; line-height: 1.5; }
@media (max-width: 768px) { :root { --header-offset: 146px; } .header-container { width: 100%; max-width: none; padding-left: 15px; padding-right: 15px; min-height: 60px; } .nav-container { width: 100%; max-width: none; padding-left: 15px; padding-right: 15px; flex-direction: column; align-items: flex-start; } .desktop-nav-buttons { display: none; } .logo { font-size: 1.4rem; } .hamburger-menu { display: flex; flex-direction: column; justify-content: center; align-items: center; width: 36px; height: 36px; cursor: pointer; background: transparent; border: 1px solid var(--primary); border-radius: 6px; padding: 6px; position: absolute; left: 15px; top: 12px; z-index: 1001; gap: 4px; transition: all 0.3s ease; }
 .hamburger-menu .bar { display: block; width: 100%; height: 2px; background-color: var(--primary); transition: all 0.3s ease; }
 .hamburger-menu.active { background-color: var(--primary); }
 .hamburger-menu.active .bar { background-color: var(--bg-dark); }
 .hamburger-menu.active .bar:nth-child(1) { transform: translateY(6px) rotate(45deg); }
 .hamburger-menu.active .bar:nth-child(2) { opacity: 0; }
 .hamburger-menu.active .bar:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
 .main-nav { display: none; position: fixed; top: 60px; left: 0; width: 80%; max-width: 350px; height: 100%; background-color: #1A1A1A; flex-direction: column; align-items: flex-start; padding-top: 30px; transition: transform 0.4s ease; z-index: 1000; border-right: 2px solid var(--border-color); overflow-y: auto; transform: translateX(-100%); }
 .main-nav.active { display: block; transform: translateX(0); }
 .nav-menu { flex-direction: column; width: 100%; padding: 0 20px; }
 .nav-item { width: 100%; }
 .nav-link { display: block; width: 100%; padding: 14px 10px; border-bottom: 1px solid rgba(242,193,78,0.1); font-size: 1rem; }
 .btn-promo-link { color: var(--primary); }
 .mobile-nav-buttons { display: flex; gap: 10px; padding: 20px; width: 100%; flex-wrap: wrap; }
 .mobile-nav-buttons .btn { flex: 1 1 45%; min-width: 130px; padding: 12px 15px; text-align: center; }
 .mobile-menu-overlay { display: block; position: fixed; top: 60px; left: 0; width: 100%; height: 100%; background-color: rgba(0,0,0,0.6); z-index: 999; opacity: 0; visibility: hidden; transition: opacity 0.4s ease; }
 .mobile-menu-overlay.active { opacity: 1; visibility: visible; }
 .page-content img { max-width: 100% !important; height: auto !important; display: block; }
 .page-content { overflow-x: hidden; max-width: 100%; }
 body { overflow-x: hidden; }
 .footer-container { grid-template-columns: 1fr 1fr; gap: 30px; padding: 30px 0; width: 100%; max-width: none; }
 .footer-brand { grid-column: 1 / -1; text-align: center; }
 .footer-copyright { font-size: 0.8rem; text-align: center; }
 .site-footer { padding: 40px 15px 15px; }
}
@media (max-width: 480px) { .footer-container { grid-template-columns: 1fr; text-align: center; } .footer-title::after { left: 50%; transform: translateX(-50%); } .footer-links a:hover { padding-left: 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;
}