:root { --header-offset: 122px; --primary-color: #F2C14E; --secondary-color: #FFD36B; --button-gradient: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%); --card-bg: #111111; --background-color: #0A0A0A; --text-main: #FFF6D6; --border-color: #3A2A12; --glow-color: #FFD36B; }

html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, sans-serif; color: var(--text-main); background-color: var(--background-color); padding-top: var(--header-offset); overflow-x: hidden; }
body.no-scroll { overflow: hidden; }

/* General link styling for buttons */
a.btn { text-decoration: none; }

/* Site Header */
.site-header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; background-color: var(--card-bg); box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5); min-height: 68px; display: flex; align-items: center; }

.header-container { max-width: 1200px; margin: 0 auto; padding: 10px 30px; display: flex; align-items: center; width: 100%; }

.logo { font-size: 28px; font-weight: bold; color: var(--primary-color); text-decoration: none; flex-shrink: 0; margin-right: 20px; }

/* Main Navigation (Desktop) */
.main-nav { display: flex; flex-direction: row; flex: 1; justify-content: center; align-items: center; gap: 25px; }
.main-nav .nav-link { color: var(--text-main); text-decoration: none; padding: 8px 15px; transition: color 0.3s ease, background-color 0.3s ease; border-radius: 5px; }
.main-nav .nav-link:hover, .main-nav .nav-link.active { color: var(--background-color); background-color: var(--primary-color); }

/* Desktop Buttons */
.desktop-nav-buttons { display: flex; gap: 10px; margin-left: auto; flex-shrink: 0; }
.btn { background: var(--button-gradient); color: var(--background-color); padding: 10px 20px; border-radius: 25px; font-weight: bold; transition: transform 0.2s ease, box-shadow 0.2s ease; border: none; cursor: pointer; white-space: nowrap; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 4px 8px rgba(255, 211, 107, 0.4); }
.btn-login { background: var(--button-gradient); color: var(--background-color); }
.btn-register { background: var(--button-gradient); color: var(--background-color); }

/* Mobile specific elements (hidden by default on desktop) */
.hamburger-menu { display: none; background: none; border: none; cursor: pointer; padding: 0; width: 30px; height: 24px; position: relative; z-index: 1001; flex-direction: column; justify-content: space-between; margin-right: 15px; }
.hamburger-icon { display: block; width: 100%; height: 3px; background-color: var(--primary-color); border-radius: 2px; transition: all 0.3s ease; }
.hamburger-menu.active .hamburger-icon:nth-child(1) { transform: translateY(10px) rotate(45deg); }
.hamburger-menu.active .hamburger-icon:nth-child(2) { opacity: 0; }
.hamburger-menu.active .hamburger-icon:nth-child(3) { transform: translateY(-11px) rotate(-45deg); }

.mobile-nav-buttons { display: none !important; }
.mobile-menu-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.7); z-index: 998; }
.mobile-menu-overlay.active { display: block; }

/* Site Footer */
.site-footer { background-color: var(--card-bg); color: var(--text-main); padding: 40px 0 20px; font-size: 14px; }
.footer-container { max-width: 1200px; margin: 0 auto; padding: 0 30px; }
.footer-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; }

.footer-col .footer-logo { font-size: 24px; font-weight: bold; color: var(--primary-color); text-decoration: none; display: block; margin-bottom: 15px; }
.footer-col .footer-description { line-height: 1.6; color: rgba(255, 246, 214, 0.8); word-wrap: break-word; overflow-wrap: break-word; }
.footer-col .footer-heading { font-size: 18px; color: var(--primary-color); margin-bottom: 20px; }
.footer-nav ul { list-style: none; padding: 0; margin: 0; }
.footer-nav li { margin-bottom: 10px; }
.footer-nav a { color: rgba(255, 246, 214, 0.8); text-decoration: none; transition: color 0.3s ease; }
.footer-nav a:hover { color: var(--primary-color); }

.footer-bottom { text-align: center; padding-top: 30px; margin-top: 30px; border-top: 1px solid var(--border-color); color: rgba(255, 246, 214, 0.6); }

/* Footer dynamic slot anchors */
.footer-slot-anchor { min-height: 10px; display: block; }
.footer-slot-anchor-inner { min-height: 5px; display: block; }

/* Mobile Styles */
@media (max-width: 768px) {
    :root { --header-offset: 110px; }

    .page-content img { max-width: 100% !important; height: auto !important; display: block; }
    .page-content { overflow-x: hidden; max-width: 100%; }
    body { overflow-x: hidden; }

    .header-container { width: 100%; max-width: none; padding: 10px 15px; justify-content: space-between; }
    .hamburger-menu { display: flex; order: 0; }
    .logo {
        flex: 1 !important;
        display: flex !important;
        justify-content: center !important;
        align-items: center !important;
        margin: 0 10px;
        font-size: 24px;
    }
    .main-nav { display: none; position: fixed; top: var(--header-offset); left: 0; width: 280px; height: calc(100% - var(--header-offset)); background-color: var(--card-bg); flex-direction: column; padding: 20px 0; transform: translateX(-100%); transition: transform 0.3s ease; z-index: 999; overflow-y: auto; }
    .main-nav.active { display: flex; transform: translateX(0); }
    .main-nav .nav-link { padding: 12px 20px; border-bottom: 1px solid var(--border-color); width: 100%; box-sizing: border-box; }
    .main-nav .nav-link:last-child { border-bottom: none; }

    .desktop-nav-buttons { display: none !important; }
    .mobile-nav-buttons { display: flex !important; gap: 8px; order: 2; flex-shrink: 0; }

    .footer-grid { grid-template-columns: 1fr; gap: 20px; }
    .footer-col { text-align: center; }
    .footer-col .footer-logo { margin: 0 auto 15px auto; }
    .footer-nav ul { text-align: center; }
    .footer-nav li { display: inline-block; margin: 0 10px 10px 10px; }
    .footer-nav a { padding: 5px 0; }
    .footer-col .footer-description { padding: 0 15px; }
}
/* 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;
  }
}