:root {
    --header-offset: 122px; /* Desktop: 68px (header-top) + 52px (main-nav) + 2px buffer */
    --color-primary: #11A84E;
    --color-secondary: #22C768;
    --color-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
    --color-card-bg: #11271B;
    --color-background: #08160F;
    --color-text-main: #F2FFF6;
    --color-text-secondary: #A7D9B8;
    --color-border: #2E7A4E;
    --color-glow: #57E38D;
    --color-gold: #F2C14E;
    --color-divider: #1E3A2A;
    --color-deep-green: #0A4B2C;
}

body {
    padding-top: var(--header-offset);
    margin: 0;
    font-family: 'Arial', sans-serif;
    color: var(--color-text-main);
    background-color: var(--color-background);
    overflow-x: hidden;
}

/* Site Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
}

/* Header Top Section */
.header-top {
    box-sizing: border-box;
    height: 68px; /* Desktop fixed height */
    display: flex;
    align-items: center;
    background-color: var(--color-deep-green); /* Deep Green */
    overflow: hidden;
    width: 100%;
}

.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: 0 20px; /* Desktop padding */
}

/* Logo */
.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--color-text-main);
    text-decoration: none;
    display: block;
    line-height: 1;
}

.logo img {
    display: block;
    max-height: 60px; /* Desktop max height */
    height: auto;
    width: auto;
    max-width: 280px;
    object-fit: contain;
}

/* Desktop Nav Buttons */
.desktop-nav-buttons {
    display: flex;
    gap: 12px;
    align-items: center;
}

/* Mobile Nav Buttons (hidden by default on desktop) */
.mobile-nav-buttons {
    box-sizing: border-box;
    display: none; /* Hidden by default on desktop */
    min-height: 48px; /* Mobile fixed height */
    align-items: center;
    justify-content: center;
    background-color: var(--color-deep-green); /* Consistent with header-top */
    width: 100%;
    max-width: 100%;
    overflow: hidden;
    padding: 0 15px;
    gap: 10px;
}

/* Main Navigation Section */
.main-nav {
    box-sizing: border-box;
    height: 52px; /* Desktop fixed height */
    display: flex; /* Always flex for desktop */
    align-items: center;
    background-color: var(--color-primary); /* Primary color */
    overflow: hidden;
    width: 100%;
}

.nav-container {
    box-sizing: border-box;
    height: 100%;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: row; /* Desktop horizontal */
    justify-content: center;
    align-items: center;
    padding: 0 20px;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 25px;
}

.main-nav a {
    color: var(--color-text-main);
    text-decoration: none;
    font-size: 16px;
    padding: 5px 0;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--color-gold);
}

/* Hamburger Menu (hidden by default on desktop) */
.hamburger-menu {
    display: none; /* Hidden by default on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1002;
    margin-right: 15px; /* Space between hamburger and logo in desktop context (will be overridden) */
}

.hamburger-menu .bar {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-main);
    margin: 5px 0;
    transition: all 0.3s ease;
}

.hamburger-menu.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.hamburger-menu.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger-menu.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 18px;
    border-radius: 25px;
    text-decoration: none;
    color: var(--color-text-main);
    font-weight: bold;
    text-align: center;
    transition: all 0.3s ease;
    background: var(--color-button-gradient);
    border: none;
    cursor: pointer;
    white-space: nowrap;
}

.btn:hover {
    filter: brightness(1.1);
    box-shadow: 0 0 10px var(--color-glow);
}

/* Overlay (hidden by default) */
.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 999;
}

.overlay.active {
    display: block;
}

/* Footer */
.site-footer {
    background-color: var(--color-background);
    color: var(--color-text-secondary);
    padding: 40px 20px 20px;
    font-size: 14px;
    line-height: 1.6;
    box-sizing: border-box;
    width: 100%;
}

.footer-slot-anchor {
    margin-bottom: 20px; /* Provide some spacing for injected content */
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.footer-top-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto 30px;
}

.footer-col h3 {
    color: var(--color-text-main);
    font-size: 18px;
    margin-bottom: 15px;
    border-bottom: 1px solid var(--color-divider);
    padding-bottom: 10px;
}

.footer-logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--color-text-main);
    text-decoration: none;
    display: block;
    margin-bottom: 15px;
}

.footer-description {
    color: var(--color-text-secondary);
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.footer-nav {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-nav li {
    margin-bottom: 8px;
}

.footer-nav a {
    color: var(--color-text-main);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-nav a:hover {
    color: var(--color-gold);
}

.footer-mid-section {
    max-width: 1200px;
    margin: 0 auto 30px;
}

.footer-slot-anchor-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-top: 20px;
}

.footer-bottom {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid var(--color-divider);
    color: var(--color-text-secondary);
}

/* Responsive Styles */
@media (max-width: 768px) {
    :root {
        --header-offset: 110px; /* Mobile: 60px (header-top) + 48px (mobile-nav-buttons) + 2px buffer */
    }

    body {
        padding-top: var(--header-offset);
    }

    /* Header Top */
    .header-top {
        height: 60px !important;
        justify-content: space-between;
        padding: 0 15px;
        display: flex;
        align-items: center;
    }

    .header-container {
        width: 100%;
        max-width: none;
        padding: 0;
        display: flex;
        align-items: center;
        position: relative;
    }

    /* Hamburger Menu visible on mobile */
    .hamburger-menu {
        display: block;
        order: -1;
        margin-right: auto; /* Push logo to center */
        padding-left: 0;
    }

    /* Logo Centering on Mobile */
    .logo {
        position: absolute !important;
        left: 50% !important;
        transform: translateX(-50%) !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        max-width: calc(100% - 100px); /* Leave space for hamburger and potential right-side element */
        height: 100%;
        pointer-events: auto;
    }

    .logo img {
        max-height: 56px !important;
    }

    /* Desktop buttons hidden on mobile */
    .desktop-nav-buttons {
        display: none !important;
    }

    /* Mobile buttons visible on mobile */
    .mobile-nav-buttons {
        display: flex !important;
        min-height: 48px;
        align-items: center;
        width: 100%; max-width: 100%;
        box-sizing: border-box;
        padding: 0 15px;
        overflow: hidden;
        gap: 10px;
        flex-wrap: nowrap;
    }

    .mobile-nav-buttons .btn {
        flex: 1; min-width: 0;
        max-width: calc(50% - 5px); /* Two buttons with 10px gap */
        box-sizing: border-box;
        padding: 8px 12px;
        font-size: 13px;
        white-space: normal;
        word-wrap: break-word;
        overflow-wrap: break-word;
        text-align: center;
    }
    
    /* Main Nav hidden by default, shown via JS */
    .main-nav {
        display: none; /* Hidden by default on mobile */
        position: fixed;
        top: var(--header-offset); /* Position below header and mobile buttons */
        left: 0;
        width: 80%; /* Sidebar width */
        height: calc(100vh - var(--header-offset)); /* Fill remaining viewport height */
        background-color: var(--color-card-bg); /* Card BG color for mobile menu */
        transform: translateX(-100%); /* Slide out to the left */
        transition: transform 0.3s ease;
        flex-direction: column;
        overflow-y: auto;
        z-index: 1001;
        box-shadow: 2px 0 5px rgba(0,0,0,0.3);
    }

    .main-nav.active {
        display: flex; /* Show menu */
        transform: translateX(0);
    }

    .nav-container {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px 15px;
        max-width: none;
        width: 100%;
        height: auto;
    }

    .main-nav ul {
        flex-direction: column;
        width: 100%;
        gap: 0;
    }

    .main-nav li {
        width: 100%;
        border-bottom: 1px solid var(--color-divider);
    }

    .main-nav li:last-child {
        border-bottom: none;
    }

    .main-nav a {
        padding: 12px 0;
        display: block;
        font-size: 15px;
    }

    /* Footer Responsive */
    .site-footer {
        padding: 30px 15px 15px;
    }

    .footer-top-grid {
        grid-template-columns: 1fr; /* Single column on mobile */
        gap: 20px;
        margin-bottom: 20px;
    }

    .footer-col {
        text-align: center;
    }

    .footer-col h3 {
        text-align: center;
    }

    .footer-nav {
        text-align: center;
    }

    .footer-mid-section {
        margin-bottom: 20px;
    }

    .footer-slot-anchor-grid {
        grid-template-columns: 1fr; /* Single column for mid_r*c* slots */
        gap: 15px;
    }

    .footer-bottom {
        padding-top: 15px;
    }

    /* Ensure images in page content are responsive */
    .page-content img {
      max-width: 100% !important;
      height: auto !important;
      display: block;
    }
    .page-content {
      overflow-x: hidden;
      max-width: 100%;
    }
    /* body overflow-x handled by global rule */
}
/* 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;
}