:root {
    --primary-bg: #0C0D14;
    --secondary-bg: #1a1b23;
    --header-bg: rgba(33, 34, 51, 0.9);
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --accent-color: #373952;
    --font-base-size: 16px;
    /* 默认字体大小 */
}

html {
    font-size: var(--font-base-size);
}

body {
    font-family: 'Nunito', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--primary-bg);
    color: var(--text-secondary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 900;
    color: var(--text-primary);
    margin: 0;
}

/* --- Header & Navigation --- */
.header-container {
    background-color: rgba(33, 34, 51, 0.9);
    color: var(--text-primary);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    padding: 0.8rem 1rem;
    /* Padding for mobile view */
}

.navigation {
    max-width: 1200px;
    /* Align with main-content */
    margin: 0 auto;
    /* Center the navigation */
    width: 100%;
    display: flex;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
    margin: 0;
    font-size: 1.2rem;
}

.logo {
    width: 44px;
    height: 44px;
}

.search-form {
    display: block;
    /* Show search form on desktop */
    margin-left: auto;
    /* Push search form to the right */
    max-width: 400px;
    /* But not too much space */
    text-align: right;
}

.TopSearch_searchInput__Nbapa {
    background-color: var(--background-secondary);
    border: 1px solid var(--accent-color);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    margin-top: 8px;
}

.TopSearch_searchInput__Nbapa::placeholder {
    color: var(--text-muted);
}

.search-icon {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.relative.search-form {
    position: relative;
}

/* --- Main Content --- */
.main-content {
    padding: 80px 0;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    flex: 1;
    box-sizing: border-box;
}

/* --- Game Gallery --- */
.game-category {
    margin-bottom: 3rem;
}

.game-category>div:first-child {
    margin-bottom: 1.5rem;
}

.game-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.game-thumbnail {
    display: block;
    position: relative;
    text-decoration: none;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background-color: var(--secondary-bg);
}

.game-thumbnail:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
}

.game-thumbnail img {
    display: block;
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.game-thumbnail:hover img {
    transform: scale(1.05);
}

.title-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0) 100%);
    padding: 1.5rem 1rem 1rem;
    text-align: left;
}

.title-overlay h5 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

/* --- Game Play Page Specifics --- */
.game-play {
    width: 100%;
    background-color: #000;
    border-radius: 12px;
    overflow: hidden;
    line-height: 0;
    /* 移除 iframe 下方的潜在空间 */
}

.game-play iframe {
    width: 100%;
    height: auto;
    /* 高度将由 aspect-ratio 自动计算 */
    border: none;
    display: block;
}

/* --- Hamburger Menu & Side Nav --- */
.hamburger-btn {
    display: none;
    /* Hidden on desktop */
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.side-menu {
    position: fixed;
    top: 0;
    left: 0;
    height: 100%;
    width: 280px;
    background-color: var(--secondary-bg);
    z-index: 2000;
    transform: translateX(-100%);
    transition: transform 0.3s ease-in-out;
    padding: 1.5rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.side-menu.open {
    transform: translateX(0);
}

.side-menu .close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

.side-menu .search-form {
    display: none;
}

.side-menu-nav a {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.8rem 0;
    font-size: 1.1rem;
    border-bottom: 1px solid var(--accent-color);
}

.side-menu-nav a i {
    width: 20px;
    /* Align icons */
}

.side-menu-nav a:hover {
    color: var(--text-primary);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1999;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.overlay.show {
    opacity: 1;
    visibility: visible;
}

/* --- Footer --- */
.site-footer {
    text-align: center;
    padding: 1rem;
    background-color: var(--secondary-bg);
    color: #b2b2b2;
    font-size: 0.9rem;
}

.site-footer a {
    color: #b2b2b2;
    margin: 0 0.5rem;
    text-decoration: none;
}

.site-footer a:hover {
    text-decoration: underline;
}

/* ========== Media Queries for Responsiveness ========== */

@media (max-width: 768px) {
    :root {
        --font-base-size: 14px;
        /* 在小屏幕上减小基础字体大小 */
    }

    .navigation {
        flex-direction: row;
        /* Revert to row for hamburger alignment */
        justify-content: space-between;
        align-items: center;
    }

    .navigation .search-form {
        display: none;
        /* Hide original search bar */
    }

    .hamburger-btn {
        display: block;
        /* Show hamburger button */
    }

    .main-content {
        padding-top: 80px;
        /* Adjust padding for fixed header */
    }

    .game-gallery {
        grid-template-columns: 1fr;
        /* 单列布局 */
        gap: 1rem;
    }

    .game-play,
    .game-info,
    .share-section {
        flex-direction: column;
    }

    .game-info {
        padding: 1rem;
        margin-top: 1.5rem;
    }
}

@media (min-width: 769px) {
    .header-container {
        padding: 0.5rem 2rem;
    }

    .navigation {
        gap: 2rem;
        /* Add space between nav items */
    }

    .logo-container {
        flex-shrink: 0;
        /* Prevent logo from shrinking */
    }

    .search-form {
        display: block;
        /* Show search form on desktop */
        margin-left: auto;
        /* Push search form to the right */
        width: 100%;
        /* Occupy available space within its max-width */
        max-width: 400px;
        /* But not too much space */
    }

    .hamburger-btn {
        display: none;
    }

    .side-menu {
        display: none;
    }

    .overlay {
        display: none !important;
        /* Ensure overlay is never shown on desktop */
    }

    .nav-links {
        display: flex;
        /* Show nav links on desktop */
        gap: 1.5rem;
        align-items: center;
        /* Vertically align items */
    }

    .nav-links a {
        text-decoration: none;
        color: var(--text-secondary);
        font-weight: 500;
    }

    .nav-links a:hover {
        color: var(--text-primary);
    }

    .game-gallery {
        grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
        gap: 1.5rem;
    }

    .game-iframe-container {
        display: flex;
        flex-direction: column;
        /* Changed to column for top-bottom layout */
        align-items: center;
        /* Center the content */
        gap: 2rem;
    }

    .game-iframe {
        width: 100%;
        /* Take full container width */
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 2rem;
        background-color: #1a1b23;
        border-radius: 12px;
    }

    .game-details {
        width: 100%;
        /* Take full container width */
    }
}

.nav-links {
    display: none;
    /* Hide nav links by default on mobile */
}