/* General Resets & Base Styles */
:root {
    --primary-color: #11A84E;
    --primary-color-light: #22C768;
    --primary-color-rgb: 34, 199, 104; /* RGB for --primary-color-light */
    --accent-color: #F2C14E;
    --text-color-dark: #333333;
    --text-color-light: #f0f0f0;
    --background-dark: #1a1a1a;
    --background-light: #ffffff;
    --border-color: #e0e0e0;
    --header-bg-top: #0a0a0a;
    --header-bg-main: #1a1a1a;
    --footer-bg-dark: #1a1a1a;
    --footer-bg-light: #2a2a2a;
    --box-shadow-light: 0 2px 10px rgba(0, 0, 0, 0.1);
    --box-shadow-dark: 0 4px 15px rgba(0, 0, 0, 0.3);
    --transition-speed: 0.3s ease;
    --font-family-primary: 'Roboto', sans-serif;
    --font-family-secondary: 'Open Sans', sans-serif;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-primary);
    line-height: 1.6;
    color: var(--text-color-dark);
    background-color: var(--background-light);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed), opacity var(--transition-speed);
}

a:hover, a:focus {
    color: var(--primary-color-light);
    opacity: 0.8;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    font-size: 0.95rem;
    font-weight: 600;
    text-align: center;
    border-radius: 5px;
    cursor: pointer;
    transition: background-color var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed);
    border: 2px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background-color: var(--primary-color-light);
    border-color: var(--primary-color-light);
    color: var(--text-color-light);
}

.btn-primary-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-primary-outline:hover {
    background-color: var(--primary-color);
    color: var(--text-color-light);
}

/* Header Styles */
.site-header {
    background-color: var(--header-bg-main);
    color: var(--text-color-light);
    box-shadow: var(--box-shadow-dark);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.site-header.scrolled {
    /* Example for sticky header on scroll */
    background-color: rgba(26, 26, 26, 0.95);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.header-top-bar {
    background-color: var(--header-bg-top);
    padding: 8px 0;
    font-size: 0.85rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-top-bar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.header-top-bar .contact-info span {
    margin-right: 20px;
    color: rgba(255, 255, 255, 0.7);
}

.header-top-bar .contact-info span i {
    margin-right: 5px;
    color: var(--accent-color);
}

.header-top-bar .user-auth {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-top-bar .user-auth .btn {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.header-top-bar .user-auth .btn i {
    margin-right: 5px;
}

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

.language-selector .dropdown-toggle {
    background: none;
    border: none;
    color: var(--text-color-light);
    padding: 6px 10px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.8rem;
    transition: opacity var(--transition-speed);
}

.language-selector .dropdown-toggle:hover {
    opacity: 0.8;
}

.language-selector .dropdown-toggle .flag-icon {
    width: 20px;
    height: auto;
    border-radius: 2px;
}

.language-selector .dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--header-bg-main);
    box-shadow: var(--box-shadow-dark);
    min-width: 150px;
    border-radius: 5px;
    overflow: hidden;
    z-index: 10;
}

.language-selector.dropdown.show .dropdown-menu {
    display: block;
}

.language-selector .dropdown-item {
    display: flex;
    align-items: center;
    padding: 8px 15px;
    color: var(--text-color-light);
    text-decoration: none;
    transition: background-color var(--transition-speed);
}

.language-selector .dropdown-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.language-selector .dropdown-item .flag-icon {
    margin-right: 10px;
}

.header-main-nav {
    padding: 15px 0;
}

.header-main-nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

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

.main-navigation {
    flex-grow: 1;
    text-align: center;
}

.main-navigation .menu-toggle {
    display: none; /* Hidden by default, shown on mobile */
    background: none;
    border: none;
    color: var(--text-color-light);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

.main-navigation .nav-menu {
    display: flex;
    justify-content: center;
    gap: 25px;
}

.main-navigation .nav-menu .menu-item {
    position: relative;
}

.main-navigation .nav-menu .menu-item a {
    color: var(--text-color-light);
    font-weight: 500;
    padding: 10px 0;
    display: block;
    position: relative;
    transition: color var(--transition-speed);
}

.main-navigation .nav-menu .menu-item a:hover {
    color: var(--accent-color);
}

.main-navigation .nav-menu .menu-item a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary-color);
    transition: width var(--transition-speed);
}

.main-navigation .nav-menu .menu-item a:hover::after,
.main-navigation .nav-menu .menu-item.current-menu-item a::after {
    width: 100%;
}

.main-navigation .nav-menu .menu-item-has-children > a i {
    margin-left: 5px;
    font-size: 0.7em;
}

.main-navigation .nav-menu .sub-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--header-bg-main);
    min-width: 200px;
    box-shadow: var(--box-shadow-dark);
    border-radius: 0 0 5px 5px;
    z-index: 10;
    padding: 10px 0;
}

.main-navigation .nav-menu .menu-item-has-children:hover > .sub-menu {
    display: block;
}

.main-navigation .nav-menu .sub-menu li a {
    padding: 10px 20px;
    color: var(--text-color-light);
    font-weight: 400;
    white-space: nowrap;
}

.main-navigation .nav-menu .sub-menu li a:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--primary-color-light);
}

.main-navigation .nav-menu .menu-item .badge {
    background-color: var(--accent-color);
    color: var(--text-color-dark);
    font-size: 0.7em;
    padding: 2px 6px;
    border-radius: 3px;
    margin-left: 5px;
    vertical-align: super;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.search-box input[type="search"] {
    padding: 8px 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color-light);
    font-size: 0.9rem;
    width: 180px;
    transition: width var(--transition-speed), background-color var(--transition-speed), border-color var(--transition-speed);
}

.search-box input[type="search"]::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.search-box input[type="search"]:focus {
    width: 220px;
    background-color: rgba(255, 255, 255, 0.15);
    outline: none;
    border-color: var(--primary-color);
}

.search-box .search-button {
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    font-size: 1rem;
    padding: 0 10px;
    cursor: pointer;
    transition: color var(--transition-speed);
}

.search-box .search-button:hover {
    color: var(--primary-color-light);
}

.announcement-bar {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    padding: 8px 0;
    font-size: 0.9rem;
    overflow: hidden;
}

.announcement-bar marquee {
    white-space: nowrap;
}

.announcement-bar .separator {
    margin: 0 20px;
    color: rgba(255, 255, 255, 0.7);
}

.announcement-bar i {
    margin-right: 5px;
}

/* Footer Styles */
.site-footer {
    background-color: var(--footer-bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding-top: 50px;
    font-size: 0.9rem;
    margin-top: auto; /* Pushes footer to the bottom */
}

.footer-widgets {
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-widgets .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

.footer-column h3 {
    color: var(--text-color-light);
    font-size: 1.1rem;
    margin-bottom: 20px;
    position: relative;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-column p {
    margin-bottom: 15px;
    line-height: 1.8;
}

.footer-column ul {
    padding-left: 0;
}

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

.footer-column ul li a {
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-speed);
}

.footer-column ul li a:hover {
    color: var(--primary-color-light);
    padding-left: 5px;
}

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

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

.social-links a {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-color-light);
    font-size: 1.1rem;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: var(--text-color-light);
}

.payment-icons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.payment-icons img {
    height: 30px;
    width: auto;
    filter: grayscale(100%) brightness(150%);
    transition: filter var(--transition-speed);
}

.payment-icons img:hover {
    filter: grayscale(0%) brightness(100%);
}

.app-downloads {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 15px;
}

.app-downloads a img {
    height: 40px;
    width: auto;
}

.footer-bottom {
    background-color: var(--footer-bg-light);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.copyright p {
    margin: 0;
}

.age-restriction {
    display: flex;
    align-items: center;
    gap: 10px;
}

.age-restriction img {
    height: 25px;
    width: auto;
}

.age-restriction p {
    margin: 0;
}

/* General Typography & Elements */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-secondary);
    font-weight: 700;
    margin-bottom: 0.8em;
    color: var(--text-color-dark);
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.9rem; }

p {
    margin-bottom: 1em;
}

strong {
    font-weight: 700;
}

em {
    font-style: italic;
}

hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2em 0;
}

/* Forms */
form {
    margin-bottom: 20px;
}

.form-group {
    margin-bottom: 15px;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color-dark);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="number"],
textarea,
select {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-family: var(--font-family-primary);
    font-size: 1rem;
    color: var(--text-color-dark);
    background-color: var(--background-light);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-color-rgb), 0.2);
    outline: none;
}

textarea {
    min-height: 100px;
    resize: vertical;
}

select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23333'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 16px;
    padding-right: 30px;
}

.checkbox-group, .radio-group {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.checkbox-group input[type="checkbox"],
.radio-group input[type="radio"] {
    margin-right: 10px;
    transform: scale(1.1);
    cursor: pointer;
}

.form-text-muted {
    font-size: 0.85em;
    color: #6c757d;
    margin-top: 5px;
    display: block;
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.text-primary { color: var(--primary-color); }
.text-accent { color: var(--accent-color); }
.bg-dark { background-color: var(--background-dark); color: var(--text-color-light); }
.bg-light { background-color: var(--background-light); color: var(--text-color-dark); }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.py-1 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2 { padding-top: 1rem; padding-bottom: 1rem; }
.py-3 { padding-top: 1.5rem; padding-bottom: 1.5rem; }

/* Animations & Effects */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.hover-grow {
    transition: transform 0.2s ease-out;
}
.hover-grow:hover {
    transform: scale(1.05);
}

/* Scroll to Top Button (example) */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: var(--text-color-light);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2rem;
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-speed), visibility var(--transition-speed);
    z-index: 999;
    cursor: pointer;
    box-shadow: var(--box-shadow-dark);
}

.scroll-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* Additional general styling for content areas, assuming a main content area */
main {
    flex-grow: 1; /* Ensures main content takes available space, pushing footer down */
    padding: 30px 0;
}

section {
    margin-bottom: 40px;
}

.card {
    background-color: var(--background-light);
    border-radius: 8px;
    box-shadow: var(--box-shadow-light);
    padding: 25px;
    margin-bottom: 20px;
}

.card-header {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-color-dark);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1em;
    background-color: var(--background-light);
    box-shadow: var(--box-shadow-light);
    border-radius: 8px;
    overflow: hidden; /* For rounded corners with borders */
}

table th, table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background-color: var(--primary-color-light);
    color: var(--text-color-light);
    font-weight: 600;
}

table tbody tr:nth-child(even) {
    background-color: #f8f8f8;
}

table tbody tr:hover {
    background-color: #f1f1f1;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    padding: 20px 0;
    gap: 5px;
}

.pagination a, .pagination span {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    min-width: 38px;
    height: 38px;
    padding: 0 10px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--primary-color);
    transition: background-color var(--transition-speed), color var(--transition-speed), border-color var(--transition-speed);
}

.pagination a:hover {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    border-color: var(--primary-color);
}

.pagination .current, .pagination .dots {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    border-color: var(--primary-color);
    cursor: default;
}

.pagination .dots {
    background-color: transparent;
    color: var(--text-color-dark);
    border-color: transparent;
}

/* Alerts and Messages */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert i {
    font-size: 1.2rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* Scrollbar Styling (optional, for custom aesthetics) */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--background-light);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 5px;
    transition: background var(--transition-speed);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color-light);
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .header-main-nav .nav-menu {
        gap: 15px;
    }
    .header-main-nav .navbar-brand .site-logo {
        height: 45px;
    }
    .main-navigation .nav-menu .menu-item a {
        padding: 8px 0;
    }
    .search-box input[type="search"] {
        width: 150px;
    }
    .search-box input[type="search"]:focus {
        width: 180px;
    }
}

@media (max-width: 768px) {
    .header-top-bar .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .header-top-bar .contact-info {
        margin-bottom: 5px;
    }
    .header-main-nav .container {
        flex-wrap: wrap;
        justify-content: space-between;
    }
    .main-navigation {
        flex-basis: 100%;
        order: 3; /* Push navigation below logo and actions */
        margin-top: 15px;
        text-align: left;
    }
    .main-navigation .menu-toggle {
        display: block;
        margin-left: auto;
        order: 2;
    }
    .main-navigation .nav-menu {
        flex-direction: column;
        display: none; /* Hidden by default on mobile */
        width: 100%;
        background-color: var(--header-bg-main);
        box-shadow: var(--box-shadow-dark);
        border-radius: 5px;
        padding: 10px 0;
        margin-top: 10px;
    }
    .main-navigation .nav-menu.active {
        display: flex; /* Show when active */
    }
    .main-navigation .nav-menu .menu-item {
        width: 100%;
        text-align: left;
    }
    .main-navigation .nav-menu .menu-item a {
        padding: 12px 20px;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }
    .main-navigation .nav-menu .menu-item:last-child a {
        border-bottom: none;
    }
    .main-navigation .nav-menu .menu-item a::after {
        display: none; /* Hide underline effect on mobile */
    }
    .main-navigation .nav-menu .sub-menu {
        position: static;
        display: none;
        width: 100%;
        background-color: rgba(0, 0, 0, 0.3);
        box-shadow: none;
        border-radius: 0;
        padding-left: 20px;
    }
    .main-navigation .nav-menu .menu-item-has-children:hover > .sub-menu {
        display: none; /* Handled by JS for touch devices */
    }
    .main-navigation .nav-menu .menu-item-has-children.active > .sub-menu {
        display: block; /* Show when active via JS */
    }
    .main-navigation .nav-menu .sub-menu li a {
        padding-left: 30px;
    }
    .header-actions {
        order: 2;
        margin-left: auto; /* Push search to the right */
    }
    .search-box input[type="search"] {
        width: 120px;
        padding: 6px 10px;
    }
    .search-box input[type="search"]:focus {
        width: 150px;
    }
    .footer-widgets .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }
    .social-links, .payment-icons, .app-downloads {
        justify-content: center;
    }
    .footer-bottom .container {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .header-top-bar .contact-info {
        flex-direction: column;
        align-items: flex-start;
    }
    .header-top-bar .contact-info span {
        margin-right: 0;
        margin-bottom: 5px;
    }
    .header-top-bar .user-auth {
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
    }
    .header-top-bar .user-auth .btn,
    .header-top-bar .user-auth .language-selector {
        width: 100%;
        text-align: center;
    }
    .header-top-bar .user-auth .language-selector .dropdown-toggle {
        justify-content: center;
    }
    .navbar-brand .site-logo {
        height: 40px;
    }
    .header-actions {
        flex-basis: 100%;
        justify-content: center;
        margin-top: 10px;
    }
    .search-box {
        width: 100%;
        justify-content: center;
    }
    .search-box input[type="search"] {
        width: 80%;
    }
    .search-box input[type="search"]:focus {
        width: 90%;
    }
}

/* FontAwesome Icons (assuming CDN or local import for these) */
/* @import url('https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.4/css/all.min.css'); */
/* This comment is a placeholder, actual import should be handled in the main HTML or build process */
/* 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;
  }
}