/* Basic Resets & Global Styles */
:root {
    --primary-color: #FFD700; /* Warm Gold */
    --secondary-color: #DC143C; /* Crimson Red */
    --dark-bg: #1a1a1a;
    --light-text: #f0f0f0;
    --gray-text: #aaaaaa;
    --border-color: #333;
    --font-family-primary: 'Roboto', sans-serif;
    --font-family-secondary: 'Open Sans', sans-serif;
    --header-height: 80px;
    --top-bar-height: 40px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-primary);
    line-height: 1.6;
    color: var(--light-text);
    background-color: #0d0d0d;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
}

a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
    transform: translateY(-2px);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 5px;
    font-weight: bold;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
    border: none;
}

.btn-login {
    background-color: var(--primary-color);
    color: var(--dark-bg);
}

.btn-login:hover {
    background-color: #FFC107;
    color: var(--dark-bg);
    transform: translateY(-1px);
}

.btn-register {
    background-color: var(--secondary-color);
    color: var(--light-text);
    margin-left: 10px;
}

.btn-register:hover {
    background-color: #CC0000;
    color: var(--light-text);
    transform: translateY(-1px);
}

/* Marquee Section */
.marquee-section {
    background-color: #222;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--light-text);
    overflow: hidden;
}

.marquee-container {
    display: flex;
    align-items: center;
    gap: 15px;
    white-space: nowrap;
    animation: marquee-scroll 30s linear infinite;
}

.marquee-icon {
    font-size: 1.2em;
    color: var(--primary-color);
    flex-shrink: 0;
}

.marquee-content p {
    margin: 0;
    display: inline-block;
    padding-right: 50px; /* Space between repeating content */
}

@keyframes marquee-scroll {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* Header Styles */
.main-header {
    background-color: var(--dark-bg);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-top-bar {
    background-color: #222;
    padding: 8px 0;
    font-size: 0.9em;
    border-bottom: 1px solid var(--border-color);
}

.top-bar-content {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    gap: 20px;
}

.language-switcher {
    position: relative;
    display: inline-block;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--gray-text);
    cursor: pointer;
    padding: 5px 10px;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.lang-btn:hover {
    color: var(--light-text);
}

.lang-btn .flag-icon {
    width: 20px;
    height: auto;
    border-radius: 2px;
}

.lang-btn .fa-chevron-down {
    font-size: 0.7em;
    margin-left: 5px;
}

.lang-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: #2a2a2a;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    min-width: 120px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 10;
}

.language-switcher.active .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown li a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    color: var(--light-text);
    font-size: 0.9em;
    white-space: nowrap;
}

.lang-dropdown li a:hover {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    text-decoration: none;
}

.lang-dropdown li a img {
    width: 20px;
    height: auto;
    border-radius: 2px;
}

.auth-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.auth-links .btn {
    padding: 6px 12px;
    font-size: 0.85em;
}

.auth-links .btn i {
    margin-right: 5px;
}

.header-main-nav {
    padding: 15px 0;
    min-height: var(--header-height);
}

.header-main-nav > .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand .site-logo {
    height: 50px; /* Adjust as needed */
    width: auto;
    transition: transform 0.3s ease;
}

.navbar-brand .site-logo:hover {
    transform: scale(1.05);
}

.main-navigation {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.nav-list {
    display: flex;
    gap: 25px;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--light-text);
    font-weight: 500;
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 5px;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary-color);
}

.nav-link i {
    font-size: 1.1em;
}

.dropdown-arrow {
    font-size: 0.7em;
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.has-dropdown:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background-color: #2a2a2a;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    min-width: 180px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 10;
}

.nav-item.has-dropdown:hover .submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.submenu li a {
    display: block;
    padding: 10px 15px;
    color: var(--light-text);
    white-space: nowrap;
}

.submenu li a:hover {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    text-decoration: none;
}

.hamburger-menu {
    display: none; /* Hidden by default on desktop */
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1001;
}

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

/* Hamburger menu active state (for JS) */
.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);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-toggle {
    background: none;
    border: none;
    color: var(--light-text);
    font-size: 1.2em;
    cursor: pointer;
    transition: color 0.3s ease;
}

.search-toggle:hover {
    color: var(--primary-color);
}

.search-input-wrapper {
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%) translateX(10px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    background-color: #2a2a2a;
    border-radius: 20px;
    padding: 5px 10px;
    width: 250px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
}

.search-box.active .search-input-wrapper {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(0);
}

.search-input {
    border: none;
    background: transparent;
    color: var(--light-text);
    padding: 5px 10px;
    outline: none;
    flex-grow: 1;
    font-size: 0.95em;
}

.search-input::placeholder {
    color: var(--gray-text);
}

.search-submit {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 1em;
    padding: 0 5px;
}

/* Footer Styles */
.main-footer {
    background-color: var(--dark-bg);
    padding: 50px 0 20px;
    border-top: 1px solid var(--border-color);
    color: var(--gray-text);
    font-size: 0.9em;
    position: relative;
}

.footer-widgets {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: 40px;
    gap: 30px;
}

.footer-col {
    flex: 1;
    min-width: 250px;
    margin-bottom: 20px;
}

.footer-col h3 {
    color: var(--primary-color);
    font-size: 1.2em;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-col h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 50px;
    height: 2px;
    background-color: var(--secondary-color);
}

.footer-col p {
    margin-bottom: 15px;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: var(--gray-text);
    transition: color 0.3s ease;
}

.footer-col ul li a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}

.footer-logo .site-logo-footer {
    height: 60px;
    margin-bottom: 20px;
}

.social-links {
    margin-top: 20px;
    display: flex;
    gap: 15px;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #333;
    color: var(--light-text);
    font-size: 1.2em;
    transition: background-color 0.3s ease, color 0.3s ease, transform 0.2s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--dark-bg);
    transform: translateY(-3px);
}

.contact-info p i {
    margin-right: 10px;
    color: var(--primary-color);
}

.payment-methods {
    margin-top: 25px;
}

.payment-methods h4 {
    color: var(--light-text);
    margin-bottom: 15px;
    font-size: 1.1em;
}

.payment-icon {
    height: 30px;
    margin-right: 10px;
    filter: grayscale(80%) brightness(120%);
    transition: filter 0.3s ease, transform 0.3s ease;
}

.payment-icon:hover {
    filter: grayscale(0%) brightness(100%);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    text-align: center;
    gap: 20px;
}

.copyright {
    flex-basis: 100%;
    order: 2;
}

.licensing {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 15px;
    flex-basis: 100%;
    order: 1;
}

.license-icon {
    height: 40px;
    filter: grayscale(70%) brightness(120%);
    transition: filter 0.3s ease, transform 0.3s ease;
}

.license-icon:hover {
    filter: grayscale(0%) brightness(100%);
    transform: translateY(-3px);
}

.age-restriction {
    background-color: var(--secondary-color);
    color: var(--light-text);
    padding: 5px 10px;
    border-radius: 5px;
    font-weight: bold;
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: var(--dark-bg);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5em;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, visibility 0.3s ease, transform 0.3s ease;
    z-index: 999;
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    color: var(--light-text);
    transform: translateY(-5px);
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .nav-list {
        gap: 15px;
    }
}

@media (max-width: 992px) {
    .main-navigation {
        justify-content: flex-end;
    }

    .nav-list {
        display: none; /* Hide main nav on smaller screens */
        flex-direction: column;
        position: absolute;
        top: calc(var(--header-height) + var(--top-bar-height) - 1px); /* Adjusted to sit below top bar + main nav line */
        left: 0;
        width: 100%;
        background-color: #2a2a2a;
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
        padding: 20px 0;
        border-top: 1px solid var(--border-color);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.4s ease-out;
    }

    .nav-list.active {
        display: flex;
        max-height: 500px; /* Adjust based on content */
    }

    .nav-item {
        width: 100%;
        text-align: center;
        border-bottom: 1px solid var(--border-color);
    }

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

    .nav-link {
        padding: 15px 20px;
        justify-content: center;
    }

    .nav-link::after {
        display: none;
    }

    .has-dropdown .submenu {
        position: static;
        width: 100%;
        border: none;
        box-shadow: none;
        background-color: #333;
        transform: none;
        opacity: 1;
        visibility: visible;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out;
    }

    .has-dropdown.active .submenu {
        max-height: 300px; /* Adjust based on submenu items */
    }

    .submenu li a {
        padding: 10px 30px;
        font-size: 0.9em;
    }

    .hamburger-menu {
        display: block; /* Show hamburger menu */
        margin-left: 20px;
    }

    .header-actions {
        order: 3; /* Move search/actions to the right */
    }

    .header-main-nav > .container {
        justify-content: space-between;
    }

    .search-box.active .search-input-wrapper {
        position: static;
        transform: none;
        width: auto;
        flex-grow: 1;
    }
}

@media (max-width: 768px) {
    .top-bar-content {
        justify-content: center;
    }
    .auth-links {
        display: none; /* Hide auth links on very small screens, might be moved to hamburger menu */
    }
    .language-switcher {
        margin: 0 auto; /* Center language switcher if auth links are hidden */
    }

    .footer-widgets {
        flex-direction: column;
        align-items: center;
    }
    .footer-col {
        min-width: unset;
        width: 100%;
        text-align: center;
    }
    .footer-col h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .social-links {
        justify-content: center;
    }
    .contact-info p {
        text-align: center;
    }
    .contact-info p i {
        margin-right: 5px;
        margin-left: 0;
    }
    .payment-methods {
        text-align: center;
    }
    .footer-bottom {
        flex-direction: column;
    }
    .licensing, .copyright {
        order: unset;
    }
    .licensing {
        margin-bottom: 15px;
    }
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.3em;
    }
}
/* 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;
  }
}