:root { --primary: #11A84E; --secondary: #22C768; --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%); --card-bg: #11271B; --bg-main: #08160F; --text-main: #F2FFF6; --text-secondary: #A7D9B8; --border-color: #2E7A4E; --glow: #57E38D; --gold: #F2C14E; --divider: #1E3A2A; --deep-green: #0A4B2C; --header-offset: 122px; }
* { margin: 0; padding: 0; box-sizing: border-box; }
body { padding-top: var(--header-offset); font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; background-color: var(--bg-main); color: var(--text-main); }
/* ===== Header ===== */
.site-header { position: fixed; top: 0; left: 0; right: 0; width: 100%; z-index: 1000; box-shadow: 0 4px 20px rgba(0,0,0,0.5); }
/* 顶部区域 */
.header-top { box-sizing: border-box; height: 68px; min-height: 68px; display: flex; align-items: center; overflow: hidden; background-color: var(--deep-green); width: 100%; border-bottom: 1px solid var(--border-color); }
.header-container { box-sizing: border-box; width: 100%; height: 100%; max-width: 1200px; margin: 0 auto; display: flex; justify-content: space-between; align-items: center; padding-left: 30px; padding-right: 30px; position: relative; }
.logo { display: inline-block; font-size: 32px; font-weight: 800; color: var(--gold); text-decoration: none; letter-spacing: 2px; text-transform: lowercase; text-shadow: 0 0 12px rgba(242,193,78,0.5); flex-shrink: 0; }
.logo img { display: block; max-height: 60px; height: auto; width: auto; max-width: 280px; object-fit: contain; }
.desktop-nav-buttons { display: flex; gap: 12px; align-items: center; }
.mobile-nav-buttons { box-sizing: border-box; display: none; min-height: 48px; }
/* 按钮样式 */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 24px; border-radius: 8px; font-size: 15px; font-weight: 700; text-decoration: none; border: none; cursor: pointer; transition: all 0.3s ease; white-space: nowrap; text-align: center; line-height: 1.2; }
.btn-register { background: var(--btn-gradient); color: #FFFFFF; box-shadow: 0 4px 15px rgba(42,209,111,0.4); }
.btn-register:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(42,209,111,0.6); }
.btn-login { background: transparent; color: var(--gold); border: 2px solid var(--gold); }
.btn-login:hover { background: var(--gold); color: #08160F; box-shadow: 0 4px 15px rgba(242,193,78,0.5); }
/* 汉堡按钮 */
.hamburger-menu { display: none; flex-direction: column; justify-content: center; align-items: center; gap: 5px; width: 44px; height: 44px; background: transparent; border: 1px solid var(--border-color); border-radius: 8px; cursor: pointer; padding: 8px; z-index: 1001; flex-shrink: 0; }
.hamburger-line { display: block; width: 24px; height: 2px; background-color: var(--text-main); border-radius: 2px; transition: transform 0.3s ease, opacity 0.3s ease; }
.hamburger-menu.active .hamburger-line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger-menu.active .hamburger-line:nth-child(2) { opacity: 0; }
.hamburger-menu.active .hamburger-line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
/* 主导航 */
.main-nav { box-sizing: border-box; height: 52px; min-height: 52px; display: flex; align-items: center; overflow: hidden; background-color: var(--card-bg); width: 100%; border-bottom: 1px solid var(--border-color); }
.nav-container { box-sizing: border-box; height: 100%; width: 100%; max-width: 1200px; margin: 0 auto; display: flex; flex-direction: row; justify-content: center; align-items: center; padding: 0 20px; }
.nav-menu { list-style: none; display: flex; flex-direction: row; justify-content: center; align-items: center; gap: 4px; height: 100%; }
.nav-menu li { height: 100%; display: flex; align-items: center; }
.nav-link { display: flex; align-items: center; height: 100%; padding: 0 14px; color: var(--text-secondary); text-decoration: none; font-size: 14px; font-weight: 600; transition: color 0.3s ease, background-color 0.3s ease; border-bottom: 3px solid transparent; white-space: nowrap; }
.nav-link:hover, .nav-link.active { color: var(--glow); border-bottom-color: var(--glow); background-color: rgba(87,227,141,0.08); }
/* 遮罩层 */
.nav-overlay { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: rgba(0,0,0,0.7); z-index: 998; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease; }
.nav-overlay.active { opacity: 1; visibility: visible; }
/* ===== Footer ===== */
.site-footer { background-color: var(--card-bg); color: var(--text-secondary); border-top: 1px solid var(--border-color); padding: 50px 0 0; margin-top: 40px; }
.footer-container { box-sizing: border-box; width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.footer-top-row { width: 100%; }
.footer-slot-anchor-inner { width: 100%; }
.footer-top-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; padding-bottom: 40px; border-bottom: 1px solid var(--divider); }
.footer-col { min-width: 0; }
.footer-about { display: flex; flex-direction: column; }
.footer-logo { display: inline-block; font-size: 30px; font-weight: 800; color: var(--gold); text-decoration: none; letter-spacing: 2px; margin-bottom: 16px; text-shadow: 0 0 12px rgba(242,193,78,0.5); }
.footer-description { font-size: 14px; line-height: 1.7; color: var(--text-secondary); word-wrap: break-word; overflow-wrap: break-word; }
.footer-col-title { font-size: 17px; font-weight: 700; color: var(--text-main); margin-bottom: 18px; position: relative; padding-bottom: 10px; }
.footer-col-title::after { content: ''; position: absolute; left: 0; bottom: 0; width: 40px; height: 3px; background: var(--btn-gradient); border-radius: 2px; }
.footer-nav { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-nav li { display: block; }
.footer-nav a { color: var(--text-secondary); text-decoration: none; font-size: 14px; transition: color 0.3s ease, padding-left 0.3s ease; display: inline-block; padding-left: 0; }
.footer-nav a:hover { color: var(--glow); padding-left: 6px; }
.footer-dynamic-col { display: flex; flex-direction: column; }
.footer-mid-area { padding: 30px 0; border-bottom: 1px solid var(--divider); }
.footer-mid-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.footer-bottom-slot { width: 100%; }
.footer-bottom { padding: 24px 0; text-align: center; }
.footer-bottom p { font-size: 13px; color: var(--text-secondary); }
/* ===== Mobile ===== */
@media (max-width: 768px) {
  :root { --header-offset: 110px; }
  .header-top { height: 60px !important; min-height: 60px !important; }
  .header-container { width: 100%; max-width: none; padding-left: 15px; padding-right: 15px; justify-content: space-between; }
  .hamburger-menu { display: flex; order: -1; }
  .logo { flex: 1 !important; display: flex !important; justify-content: center !important; align-items: center !important; order: 0; font-size: 26px; }
  .logo img { display: block !important; max-width: 100%; height: auto; max-height: 56px; }
  .desktop-nav-buttons { display: none !important; }
  .mobile-nav-buttons { display: flex !important; align-items: center; justify-content: center; width: 100%; max-width: 100%; box-sizing: border-box; padding: 8px 15px; overflow: hidden; gap: 10px; flex-wrap: nowrap; background-color: var(--deep-green); border-bottom: 1px solid var(--border-color); }
  .mobile-nav-buttons .btn { flex: 1; min-width: 0; max-width: calc(50% - 5px); box-sizing: border-box; padding: 8px 12px; font-size: 13px; white-space: normal; word-wrap: break-word; overflow-wrap: break-word; }
  .main-nav { height: 48px !important; min-height: 48px !important; display: none; position: fixed; top: var(--header-offset); left: 0; right: 0; bottom: 0; height: auto !important; flex-direction: column; align-items: stretch; background-color: var(--card-bg); transform: translateX(-100%); transition: transform 0.3s ease; overflow-y: auto; z-index: 1000; border-top: 1px solid var(--border-color); }
  .main-nav.active { display: block; transform: translateX(0); }
  .nav-container { width: 100%; max-width: none; padding: 10px 15px; flex-direction: column; align-items: stretch; height: auto; justify-content: flex-start; }
  .nav-menu { flex-direction: column; align-items: stretch; gap: 0; height: auto; width: 100%; }
  .nav-menu li { height: auto; display: block; width: 100%; border-bottom: 1px solid var(--divider); }
  .nav-link { height: auto; padding: 15px 10px; font-size: 16px; border-bottom: none; border-left: 3px solid transparent; width: 100%; justify-content: flex-start; }
  .nav-link:hover, .nav-link.active { border-left-color: var(--glow); border-bottom-color: transparent; }
  .footer-top-grid { grid-template-columns: 1fr; gap: 25px; }
  .footer-mid-grid { grid-template-columns: repeat(2, 1fr); gap: 15px; }
  .footer-logo { font-size: 26px; }
}
body.no-scroll { overflow: hidden; }
.page-content img { max-width: 100% !important; height: auto !important; display: block; }
.page-content { overflow-x: hidden; max-width: 100%; }
body { overflow-x: hidden; }
/* 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;
}