:root {
  --header-offset: 122px;
  --primary: #FF8C1A;
  --secondary: #FFA53A;
  --btn-gradient: linear-gradient(180deg, #FFA53A 0%, #D96800 100%);
  --card-bg: #17191F;
  --bg: #0D0E12;
  --text-main: #FFF3E6;
  --border: #A84F0C;
  --glow: #FFB04D;
  --deep-orange: #D96800;
}
body {
  padding-top: var(--header-offset);
  margin: 0;
  background-color: var(--bg);
  color: var(--text-main);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  overflow-x: hidden;
}
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: #1a1a1a;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
  z-index: 1000;
}
.header-top {
  background-color: #141414;
  width: 100%;
}
.header-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 30px;
  min-height: 68px;
}
.logo {
  display: inline-block;
  font-size: 32px;
  font-weight: 800;
  color: var(--secondary);
  text-decoration: none;
  letter-spacing: -1px;
  line-height: 1.2;
  text-transform: uppercase;
  text-shadow: 0 0 15px rgba(255, 165, 58, 0.6);
}
.desktop-nav-buttons {
  display: flex;
  gap: 12px;
  align-items: center;
}
.btn {
  display: inline-block;
  padding: 12px 30px;
  border-radius: 50px;
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 0 10px rgba(216, 104, 0, 0.4);
  white-space: nowrap;
}
.btn-primary {
  background: var(--btn-gradient);
  color: #fff;
  border: 1px solid var(--border);
}
.btn-primary:hover {
  box-shadow: 0 0 20px rgba(255, 176, 77, 0.7);
  transform: translateY(-2px);
}
.btn-secondary {
  background: transparent;
  color: var(--secondary);
  border: 2px solid var(--secondary);
}
.btn-secondary:hover {
  background: var(--secondary);
  color: #1a1a1a;
  transform: translateY(-2px);
}
.main-nav {
  background-color: #1f1f1f;
  width: 100%;
  display: flex;
  flex-direction: row;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 8px 20px;
  width: 100%;
  flex-wrap: wrap;
}
.nav-link {
  color: var(--text-main);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 6px;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.nav-link:hover {
  color: var(--secondary);
  background-color: rgba(168, 79, 12, 0.2);
}
.hamburger-menu {
  display: none;
}
.mobile-nav-buttons {
  display: none;
}
.mobile-menu-overlay {
  display: none;
}
.site-footer {
  background-color: #0f0f0f;
  color: var(--text-main);
  padding: 50px 0 0;
  border-top: 2px solid var(--border);
}
.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  padding: 0 30px 30px;
}
.footer-brand .footer-logo {
  font-size: 36px;
  font-weight: 800;
  color: var(--secondary);
  text-decoration: none;
  text-transform: uppercase;
  text-shadow: 0 0 20px rgba(255, 165, 58, 0.5);
}
.footer-description {
  color: #bbb;
  line-height: 1.7;
  font-size: 15px;
}
.footer-heading {
  color: var(--secondary);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 15px;
  text-transform: uppercase;
}
.footer-nav {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-nav li {
  margin-bottom: 10px;
}
.footer-nav a {
  color: #ccc;
  text-decoration: none;
  font-size: 15px;
  transition: color 0.3s;
}
.footer-nav a:hover {
  color: var(--secondary);
}
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 20px 30px;
  text-align: center;
  background-color: #0a0a0a;
}
.copyright {
  margin: 0;
  font-size: 14px;
  color: #aaa;
}
@media (max-width: 768px) {
  :root {
    --header-offset: 110px;
  }
  .header-container {
    width: 100%;
    max-width: none;
    padding-left: 15px;
    padding-right: 15px;
    min-height: 60px;
    justify-content: center;
    position: relative;
  }
  .site-header {
    display: flex;
    flex-direction: column;
  }
  .logo {
    font-size: 24px;
    display: block;
    padding: 5px 0;
  }
  .header-top {
    order: 1;
  }
  .header-top .header-container .logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
  }
  .desktop-nav-buttons {
    display: none;
  }
  .hamburger-menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    padding: 15px;
    cursor: pointer;
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 1001;
  }
  .hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--secondary);
    transition: all 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);
  }
  .main-nav {
    display: none;
    order: 3;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    max-width: 80%;
    flex-direction: column;
    background-color: #1f1f1f;
    z-index: 1001;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
  }
  .main-nav.active {
    display: flex;
    transform: translateX(0);
  }
  .nav-container {
    width: 100%;
    max-width: none;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 20px;
  }
  .nav-link {
    display: block;
    width: 100%;
    padding: 15px 10px;
    font-size: 18px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-main);
  }
  .mobile-nav-buttons {
    display: flex;
    order: 2;
    gap: 10px;
    justify-content: center;
    padding: 8px 15px;
    background-color: #141414;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .mobile-nav-buttons .btn {
    flex: 1;
    padding: 10px 15px;
    font-size: 14px;
  }
  .mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 999;
  }
  .mobile-menu-overlay.active {
    display: block;
  }
  body.no-scroll {
    overflow: hidden;
  }
  .footer-container {
    grid-template-columns: 1fr;
    padding: 0 20px 30px;
    gap: 30px;
  }
  .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;
}