/* ============================================
   H5游戏中心 - 主样式表（纯CSS，无JS依赖）
   ============================================ */

/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --primary: #4f46e5;
    --primary-dark: #3730a3;
    --primary-light: #e0e7ff;
    --accent: #f59e0b;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ============ Header ============ */
.site-header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}
.logo:hover { color: var(--primary); text-decoration: none; }
.logo-icon { font-size: 1.8rem; }
.logo-text { letter-spacing: 1px; }

.search-form {
    display: flex;
    gap: 0;
    flex: 1;
    max-width: 420px;
    margin: 0 20px;
}
.search-form input[type="search"] {
    flex: 1;
    padding: 10px 16px;
    border: 2px solid var(--border);
    border-right: none;
    border-radius: var(--radius) 0 0 var(--radius);
    font-size: 0.95rem;
    outline: none;
    transition: border-color 0.2s;
    background: var(--bg);
}
.search-form input[type="search"]:focus { border-color: var(--primary); }
.search-form button {
    padding: 10px 20px;
    background: var(--primary);
    color: #fff;
    border: 2px solid var(--primary);
    border-radius: 0 var(--radius) var(--radius) 0;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}
.search-form button:hover { background: var(--primary-dark); }

.main-nav { padding-bottom: 12px; }
.main-nav ul { display: flex; gap: 4px; flex-wrap: wrap; }
.main-nav a {
    display: block;
    padding: 6px 16px;
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}
.main-nav a:hover, .main-nav a.active {
    background: var(--primary-light);
    color: var(--primary);
    text-decoration: none;
}

/* ============ Main Content ============ */
.site-main { flex: 1; padding: 24px 0 40px; }

/* ============ Hero Section ============ */
.hero {
    background: linear-gradient(135deg, var(--primary), #7c3aed);
    color: #fff;
    border-radius: 12px;
    padding: 40px;
    margin-bottom: 32px;
    text-align: center;
}
.hero h1 { font-size: 2rem; margin-bottom: 8px; }
.hero p { opacity: 0.9; font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* ============ Section Title ============ */
.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border);
}
.section-title h2 { font-size: 1.3rem; color: var(--text); }
.section-title a { font-size: 0.9rem; font-weight: 500; }

/* ============ Game Grid ============ */
.game-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.game-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: box-shadow 0.2s, transform 0.2s;
    border: 1px solid var(--border);
}
.game-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.game-card-thumb {
    position: relative;
    aspect-ratio: 16/10;
    background: #e2e8f0;
    overflow: hidden;
}
.game-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.game-card-body { padding: 14px; }
.game-card-title {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.4;
}
.game-card-title a { color: var(--text); }
.game-card-title a:hover { color: var(--primary); text-decoration: none; }
.game-card-cat {
    font-size: 0.8rem;
    color: var(--primary);
    margin-bottom: 4px;
}
.game-card-meta {
    font-size: 0.78rem;
    color: var(--text-secondary);
    display: flex;
    justify-content: space-between;
}

/* ============ Game Detail Page ============ */
.game-detail { display: flex; gap: 32px; margin-bottom: 32px; }
.game-detail-info { flex: 0 0 320px; }
.game-detail-main { flex: 1; }

.game-info-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}
.game-info-card table { width: 100%; }
.game-info-card td {
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
.game-info-card td:first-child {
    color: var(--text-secondary);
    width: 70px;
}
.game-info-card tr:last-child td { border-bottom: none; }

.game-play-area {
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 500px;
}
.game-play-area iframe {
    width: 100%;
    border: none;
    display: block;
}

.game-description {
    margin-top: 24px;
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    line-height: 1.8;
}
.game-description h2 { margin-bottom: 12px; font-size: 1.2rem; }

/* ============ Breadcrumb ============ */
.breadcrumb { margin-bottom: 20px; font-size: 0.85rem; }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.breadcrumb li { color: var(--text-secondary); }
.breadcrumb li:not(:last-child)::after { content: '/'; margin: 0 6px; color: var(--border); }
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--primary); }

/* ============ Pagination ============ */
.pagination { margin: 32px 0; text-align: center; }
.pagination ul { display: inline-flex; gap: 4px; }
.pagination li a, .pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    padding: 0 8px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--bg-card);
    color: var(--text);
}
.pagination li a:hover { background: var(--primary-light); color: var(--primary); text-decoration: none; }
.pagination li span.current {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}
.pagination li span.dots { border: none; background: none; color: var(--text-secondary); }

/* ============ Category List ============ */
.category-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 32px;
}
.category-card {
    display: block;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: all 0.2s;
    box-shadow: var(--shadow);
}
.category-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
    text-decoration: none;
    transform: translateY(-2px);
}
.category-card h3 { 
    font-size: 1.1rem; 
    color: var(--text); 
    margin-bottom: 4px; 
}
.category-card p { font-size: 0.8rem; color: var(--text-secondary); }

/* ============ Search Info ============ */
.search-info {
    margin-bottom: 24px;
    padding: 16px 20px;
    background: var(--primary-light);
    border-radius: var(--radius);
}
.search-info h1 { font-size: 1.1rem; color: var(--primary-dark); }

/* ============ No Results ============ */
.no-results {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}
.no-results h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--text); }

/* ============ Footer ============ */
.site-footer {
    background: #1e293b;
    color: #cbd5e1;
    padding: 40px 0 0;
    margin-top: auto;
}
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 30px; }
.footer-section h3 { color: #fff; font-size: 1rem; margin-bottom: 12px; }
.footer-section p { font-size: 0.9rem; line-height: 1.6; }
.footer-section ul { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.footer-section li { font-size: 0.85rem; }
.footer-section a { color: #94a3b8; }
.footer-section a:hover { color: #fff; }
.footer-bottom {
    margin-top: 30px;
    padding: 16px 0;
    border-top: 1px solid #334155;
    text-align: center;
    font-size: 0.8rem;
    color: #64748b;
}

/* ============ Admin Styles ============ */
.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}
.login-box {
    background: #fff;
    border-radius: 12px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}
.login-box h1 { text-align: center; margin-bottom: 8px; font-size: 1.5rem; }
.login-box .subtitle { text-align: center; color: var(--text-secondary); margin-bottom: 24px; font-size: 0.9rem; }

.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: 240px;
    background: #1e293b;
    color: #fff;
    padding: 20px 0;
    flex-shrink: 0;
}
.admin-sidebar .logo { padding: 0 20px 20px; border-bottom: 1px solid #334155; }
.admin-sidebar .logo a { color: #fff; font-size: 1.2rem; font-weight: 700; }
.admin-sidebar nav { padding: 20px 0; }
.admin-sidebar nav a {
    display: block;
    padding: 12px 20px;
    color: #94a3b8;
    font-size: 0.9rem;
    transition: all 0.2s;
}
.admin-sidebar nav a:hover, .admin-sidebar nav a.active {
    background: #334155;
    color: #fff;
    text-decoration: none;
}
.admin-main {
    flex: 1;
    background: #f1f5f9;
    padding: 24px;
    overflow-x: auto;
}
.admin-main h1 { font-size: 1.5rem; margin-bottom: 20px; }

/* Admin Tables */
.admin-table {
    width: 100%;
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border-collapse: collapse;
}
.admin-table th, .admin-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}
.admin-table th {
    background: #f8fafc;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
}
.admin-table tr:hover td { background: #f8fafc; }
.admin-table img { width: 80px; height: 50px; object-fit: cover; border-radius: 4px; }

/* Admin Forms */
.admin-form {
    background: #fff;
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
    max-width: 700px;
}
.form-group { margin-bottom: 20px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text);
}
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="number"],
.form-group input[type="file"],
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    font-family: inherit;
    background: var(--bg);
    transition: border-color 0.2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}
.form-group textarea { min-height: 100px; resize: vertical; }
.form-group .help-text {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}
.form-group.checkbox-group {
    display: flex;
    align-items: center;
    gap: 8px;
}
.form-group.checkbox-group label { margin: 0; }
.form-group.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    text-align: center;
    transition: all 0.2s;
    text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; text-decoration: none; }
.btn-danger { background: #ef4444; color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; text-decoration: none; }
.btn-success { background: #10b981; color: #fff; }
.btn-success:hover { background: #059669; color: #fff; text-decoration: none; }
.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* Alert Messages */
.alert {
    padding: 14px 18px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 0.9rem;
}
.alert-success { background: #d1fae5; color: #065f46; border: 1px solid #a7f3d0; }
.alert-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.alert-info { background: #e0e7ff; color: #3730a3; border: 1px solid #c7d2fe; }

/* Admin Stats */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px;
    box-shadow: var(--shadow);
    text-align: center;
}
.stat-card h3 { font-size: 2rem; color: var(--primary); }
.stat-card p { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }

/* Responsive */
@media (max-width: 768px) {
    .game-detail { flex-direction: column; }
    .game-detail-info { flex: none; }
    .footer-inner { grid-template-columns: 1fr; }
    .game-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; display: flex; overflow-x: auto; padding: 10px; }
    .admin-sidebar nav { display: flex; gap: 0; padding: 0; }
    .admin-sidebar nav a { padding: 8px 14px; white-space: nowrap; }
    .hero { padding: 24px; }
    .hero h1 { font-size: 1.5rem; }
    .header-inner { flex-direction: column; }
    .search-form { max-width: 100%; margin: 0; }
}

/* ============ Print ============ */
@media print {
    .site-header, .site-footer, .breadcrumb, .pagination { display: none; }
}
/* Game fullscreen button */
.game-play-area { position: relative; }
.game-fs-btn {
    position: absolute;
    right: 12px;
    top: 12px;
    z-index: 50;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    background: rgba(0,0,0,0.55);
    color: #fff;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}
.game-fs-btn:hover { background: rgba(79,70,229,0.85); }
@media (max-width: 768px) {
    .game-fs-btn { right: 8px; top: 8px; padding: 6px 12px; font-size: 13px; }
}