* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: 'Orbitron', sans-serif;
    background: linear-gradient(135deg, #0b1a3a 0%, #1a3a5c 100%);
    color: #e0f0ff;
    min-height: 100vh;
}
.navbar {
    background: rgba(10, 25, 50, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}
.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}
.nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    flex-wrap: wrap;
}
.nav-links a {
    color: #a0c4ff;
    text-decoration: none;
    transition: 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 25px;
}
.nav-links a:hover {
    background: rgba(0, 212, 255, 0.2);
    color: #00d4ff;
}
.hamburger {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 2rem;
    cursor: pointer;
}
.hero {
    text-align: center;
    padding: 6rem 2rem;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%2300d4ff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,186.7C384,213,480,235,576,224C672,213,768,171,864,149.3C960,128,1056,128,1152,149.3C1248,171,1344,213,1392,234.7L1440,256L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
}
.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    text-shadow: 0 0 20px rgba(0,212,255,0.5);
}
.hero p {
    font-size: 1.2rem;
    color: #b0d4ff;
    margin-bottom: 2rem;
}
.btn-primary {
    display: inline-block;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: 0.3s;
    box-shadow: 0 4px 15px rgba(0,212,255,0.4);
}
.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(0,212,255,0.6);
}
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.feature-card {
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.1);
    transition: 0.3s;
    box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}
.feature-card:hover {
    transform: translateY(-10px);
    border-color: #00d4ff;
    box-shadow: 0 12px 40px rgba(0,212,255,0.3);
}
.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #00d4ff;
}
.stats {
    text-align: center;
    padding: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}
.stat-item {
    background: rgba(0,212,255,0.1);
    border-radius: 15px;
    padding: 2rem;
}
.stat-item h4 {
    color: #7b2ff7;
}
footer {
    text-align: center;
    padding: 2rem;
    background: rgba(10,25,50,0.9);
    margin-top: 3rem;
}
footer a {
    color: #00d4ff;
    text-decoration: none;
}
@media (max-width: 768px) {
    .nav-links { display: none; flex-direction: column; width: 100%; }
    .nav-links.active { display: flex; }
    .hamburger { display: block; }
    .hero h1 { font-size: 2rem; }
}
/* 通用页面样式 */
.page-content {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}
.page-content h1 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2.5rem;
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}
.card {
    background: rgba(255,255,255,0.05);
    border-radius: 15px;
    padding: 1.5rem;
    border: 1px solid rgba(255,255,255,0.1);
    transition: 0.3s;
}
.card:hover {
    transform: translateY(-5px);
    border-color: #00d4ff;
}
.card h3 {
    color: #00d4ff;
}
.admin-body {
    background: #0a1929;
}
.admin-container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1rem;
}
.admin-login, .admin-panel {
    background: rgba(255,255,255,0.05);
    border-radius: 20px;
    padding: 2rem;
}
.admin-login input, .admin-panel textarea {
    width: 100%;
    padding: 0.8rem;
    margin: 0.5rem 0;
    border-radius: 10px;
    border: none;
    background: rgba(255,255,255,0.1);
    color: #fff;
}
.admin-login button, .admin-panel button {
    background: linear-gradient(90deg, #00d4ff, #7b2ff7);
    color: #fff;
    padding: 0.8rem 2rem;
    border: none;
    border-radius: 25px;
    cursor: pointer;
    margin: 0.5rem 0;
}
.error { color: #ff4d4d; }
.success { color: #00ff88; }
.game-canvas-container {
    display: flex;
    justify-content: center;
    margin: 2rem 0;
}
#gameCanvas {
    background: #0a3a5c;
    border-radius: 20px;
    box-shadow: 0 0 40px rgba(0,212,255,0.3);
    max-width: 100%;
}
.shop-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: rgba(255,255,255,0.05);
    border-radius: 10px;
    margin: 0.5rem 0;
}
.shop-item button {
    background: #00d4ff;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    color: #0b1a3a;
    cursor: pointer;
}