:root { --primary: #C61F1F; --secondary: #E53030; --btn-gradient: linear-gradient(180deg, #FFB04A 0%, #D86A14 100%); --card-bg: #2A1212; --bg-color: #140C0C; --text-main: #FFF1E8; --border-color: #6A1E1E; --gold: #F3C54D; --deep-red: #7E0D0D; --header-offset: 206px; }
body { margin: 0; padding-top: var(--header-offset); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; background-color: var(--bg-color); color: var(--text-main); }
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background: var(--bg-color); box-shadow: 0 4px 20px rgba(0, 0, 0, 0.7); border-bottom: 2px solid var(--gold); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; }
.announcement-bar { background: linear-gradient(90deg, var(--deep-red), var(--secondary)); color: var(--text-main); text-align: center; padding: 6px 15px; font-size: 13px; }
.announcement-text { margin: 0; }
.header-top { background: var(--bg-color); 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: 12px 25px; width: 100%; box-sizing: border-box; }
.logo { font-size: 2.2rem; font-weight: 900; color: var(--gold); text-decoration: none; text-transform: uppercase; letter-spacing: 2px; text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7); }
.desktop-nav-buttons { display: flex; gap: 12px; }
.btn { display: inline-block; padding: 10px 20px; font-size: 14px; font-weight: 700; border-radius: 8px; text-decoration: none !important; text-align: center; border: none; cursor: pointer; transition: transform 0.2s ease, opacity 0.3s ease; min-width: 130px; line-height: 1.4; }
.btn:hover { opacity: 0.9; transform: scale(1.05); }
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--secondary)); color: #ffffff; box-shadow: 0 4px 15px rgba(198, 31, 31, 0.5); }
.btn-gold { background: linear-gradient(135deg, var(--gold), #D86A14); color: #1a0000; box-shadow: 0 4px 15px rgba(243, 197, 77, 0.4); }
.desktop-nav-buttons .btn, .mobile-nav-buttons .btn { color: #fff; }
.main-nav { background: var(--bg-color); border-top: 1px solid var(--border-color); display: flex; }
.nav-container { max-width: 1200px; margin: 0 auto; display: flex; flex-direction: row; justify-content: center; align-items: center; padding: 10px 20px; width: 100%; box-sizing: border-box; gap: 5px; flex-wrap: wrap; }
.nav-link { color: var(--text-main); text-decoration: none; font-size: 14px; font-weight: 500; padding: 8px 12px; border-radius: 6px; transition: background-color 0.3s, color 0.3s; white-space: nowrap; }
.nav-link:hover { background: var(--deep-red); color: var(--gold); }
.nav-link.active { background: linear-gradient(135deg, var(--deep-red), var(--primary)); color: var(--gold); font-weight: 700; }
.hamburger-menu { display: none; width: 40px; height: 40px; cursor: pointer; flex-direction: column; justify-content: center; align-items: center; gap: 6px; padding: 5px; box-sizing: border-box; }
.hamburger-menu span { display: block; width: 28px; height: 3px; background-color: var(--text-main); border-radius: 3px; transition: all 0.3s ease; }
.hamburger-menu.active span:nth-child(1) { transform: translateY(9px) rotate(45deg); background: var(--gold); }
.hamburger-menu.active span:nth-child(2) { opacity: 0; }
.hamburger-menu.active span:nth-child(3) { transform: translateY(-9px) rotate(-45deg); background: var(--gold); }
.site-footer { background: var(--bg-color); color: var(--text-main); border-top: 3px solid var(--primary); font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 50px 25px 20px; box-sizing: border-box; width: 100%; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; text-align: left; }
.footer-brand { }
.footer-logo { font-size: 2rem; font-weight: 900; color: var(--gold); text-decoration: none; text-transform: uppercase; letter-spacing: 2px; display: block; margin-bottom: 20px; }
.footer-description { line-height: 1.8; margin: 0 0 25px 0; font-size: 14px; color: #d4b7a3; }
.footer-title { color: var(--gold); font-size: 1.2rem; font-weight: 700; margin: 0 0 20px 0; text-transform: uppercase; border-bottom: 2px solid var(--deep-red); padding-bottom: 8px; display: inline-block; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 15px; }
.footer-links a, .footer-contact li { color: #d4b7a3; text-decoration: none; transition: color 0.3s; font-size: 14px; }
.footer-links a:hover { color: var(--gold); }
.footer-contact { list-style: none; padding: 0; margin: 0; }
.footer-contact li { margin-bottom: 15px; color: #d4b7a3; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.footer-certificates { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 20px; }
.certificate-badge { padding: 6px 12px; background: var(--card-bg); border: 1px solid var(--border-color); border-radius: 20px; font-size: 11px; color: #d4b7a3; }
.footer-disclaimer { border-top: 1px solid var(--border-color); padding: 20px 0; margin-top: 20px; text-align: center; }
.footer-disclaimer p { margin: 5px 0; font-size: 13px; color: #d4b7a3; line-height: 1.6; }
.footer-bottom { text-align: center; padding-top: 20px; border-top: 1px solid var(--border-color); }
.footer-bottom p { margin: 0; font-size: 14px; color: #d4b7a3; }
.mobile-nav-buttons { display: none; }
.mobile-menu-overlay { display: none; }
.page-content img { max-width: 100%; height: auto; display: block; }
@media (max-width: 900px) {
 .footer-grid { grid-template-columns: 1fr 1fr; gap: 30px; }
 .footer-brand { grid-column: 1 / -1; }
 .nav-container { gap: 2px; padding: 8px 10px; }
 .nav-link { font-size: 13px; padding: 6px 8px; }
}
@media (max-width: 768px) {
 :root { --header-offset: 146px; }
 .header-container { width: 100%; max-width: none; padding: 8px 15px; }
 .nav-container { width: 100%; max-width: none; padding: 16px 15px; flex-direction: column; align-items: stretch; overflow-y: auto; max-height: calc(100vh - 140px); }
 .logo { font-size: 1.5rem; margin-left: 0; flex-shrink: 0; }
 .header-container { display: flex; justify-content: space-between; align-items: center; gap: 10px; }
 .desktop-nav-buttons { display: none; }
 .header-top { min-height: 48px; }
 .hamburger-menu { display: flex; order: -1; background: transparent; border: none; padding: 8px; }
 .main-nav { display: none; transform: translateX(-100%); position: fixed; top: 0; left: 0; bottom: 0; width: 82%; max-width: 350px; background: var(--bg-color); flex-direction: column; padding-top: 70px; transition: transform 0.3s ease; z-index: 1002; border-right: 2px solid var(--primary); box-shadow: 4px 0 15px rgba(0, 0, 0, 0.6); }
 .main-nav.active { display: block; transform: translateX(0); }
 .main-nav .nav-container { display: flex; width: 100%; }
 .main-nav .nav-link { font-size: 16px; padding: 15px 15px; text-align: center; border-bottom: 1px solid var(--border-color); }
 .mobile-nav-buttons { display: flex; justify-content: center; gap: 10px; padding: 10px 15px; background: var(--bg-color); border-top: 1px solid var(--border-color); margin: 0 auto; position: relative; z-index: 1000; }
 .mobile-nav-buttons .btn { min-width: 0; flex: 1; padding: 10px 8px; font-size: 12px; }
 .mobile-menu-overlay { display: block; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0, 0, 0, 0.75); backdrop-filter: blur(2px); opacity: 0; visibility: hidden; transition: opacity 0.3s ease; border: none; width: 100%; height: 100%; margin: 0; padding: 0; }
 .mobile-menu-overlay.active { opacity: 1; visibility: visible; }
 .site-header { display: flex; flex-direction: column; }
 .announcement-bar { font-size: 11px; padding: 5px 10px; display: block; }
 .page-content { overflow-x: hidden; max-width: 100%; }
 body { overflow-x: hidden; }
 .page-content img { max-width: 100% !important; height: auto !important; display: block; }
 .btn { min-width: 120px; }
 .mobile-nav-buttons .btn { min-width: 0; }
}
@media (max-width: 480px) {
 .mobile-nav-buttons .btn { font-size: 11px; padding: 8px 6px; }
 .logo { font-size: 1.3rem; }
 .announcement-text { font-size: 11px; }
}
/* 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;
}