:root {
    --main-bg: #181c24;
    --accent: #00ffe7;
    --card-bg: #23283a;
    --text: #fff;
    --shadow: 0 4px 32px #00ffe755;
}
body {
    margin: 0;
    background: linear-gradient(135deg, #181c24 0%, #23283a 100%);
    color: var(--text);
    font-family: 'Noto Sans JP', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}
header {
    background: rgba(24,28,36,0.95);
    box-shadow: var(--shadow);
    padding: 32px 0 24px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}
header h1 {
    font-family: 'Orbitron', sans-serif;
    font-size: 3rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin: 0;
    text-shadow: 0 0 24px #00ffe7aa, 0 2px 8px #000a;
    animation: flicker 2s infinite alternate;
}
@keyframes flicker {
    0% { opacity: 1; text-shadow: 0 0 24px #00ffe7aa, 0 2px 8px #000a;}
    50% { opacity: 0.85; text-shadow: 0 0 36px #00ffe7cc, 0 2px 12px #000a;}
    100% { opacity: 1; text-shadow: 0 0 24px #00ffe7aa, 0 2px 8px #000a;}
}
nav {
    margin-top: 24px;
    display: flex;
    justify-content: center;
    gap: 32px;
}
nav a {
    color: var(--accent);
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    position: relative;
    transition: color 0.2s;
}
nav a::after {
    content: '';
    display: block;
    height: 2px;
    width: 0;
    background: var(--accent);
    transition: width 0.3s;
    position: absolute;
    left: 0; bottom: -4px;
}
nav a:hover {
    color: #fff;
}
nav a:hover::after {
    width: 100%;
}
.hero {
    margin: 48px auto 0 auto;
    max-width: 900px;
    text-align: center;
    position: relative;
    z-index: 1;
}
.hero h2 {
    font-size: 2.2rem;
    margin-bottom: 16px;
    color: #fff;
    text-shadow: 0 0 16px #00ffe7aa;
    animation: slideIn 1.2s cubic-bezier(.77,0,.18,1) both;
}
@keyframes slideIn {
    from { opacity: 0; transform: translateY(40px);}
    to { opacity: 1; transform: translateY(0);}
}
.hero p {
    font-size: 1.2rem;
    color: #b3eaff;
    margin-bottom: 32px;
    animation: fadeIn 2s 0.5s both;
}
@keyframes fadeIn {
    from { opacity: 0;}
    to { opacity: 1;}
}
.glow {
    position: absolute;
    top: 0; left: 50%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, #00ffe7 0%, transparent 70%);
    opacity: 0.15;
    transform: translateX(-50%) scale(1.2);
    z-index: 0;
    pointer-events: none;
    animation: pulse 4s infinite alternate;
}
@keyframes pulse {
    0% { opacity: 0.12; transform: translateX(-50%) scale(1.1);}
    100% { opacity: 0.18; transform: translateX(-50%) scale(1.25);}
}
main {
    max-width: 900px;
    margin: 48px auto;
    display: flex;
    flex-wrap: wrap;
    gap: 32px;
    justify-content: space-between;
}
section {
    background: var(--card-bg);
    border-radius: 18px;
    box-shadow: var(--shadow);
    padding: 28px 24px;
    flex: 1 1 350px;
    min-width: 320px;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
section:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 48px #00ffe799;
}
section h3 {
    color: var(--accent);
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    margin-top: 0;
    margin-bottom: 18px;
    letter-spacing: 0.05em;
    text-shadow: 0 0 8px #00ffe7aa;
}
ul.news, ul.updates {
    list-style: none;
    padding: 0;
    margin: 0;
}
ul.news li, ul.updates li {
    margin-bottom: 18px;
    padding-bottom: 12px;
    border-bottom: 1px solid #2e3448;
    animation: fadeIn 1s both;
}
ul.news li:last-child, ul.updates li:last-child {
    border-bottom: none;
}
.date {
    color: #7fffd4;
    font-size: 0.95em;
    margin-right: 8px;
    font-family: 'Orbitron', sans-serif;
}
footer {
    text-align: center;
    color: #7fffd4;
    padding: 32px 0 16px 0;
    font-size: 1rem;
    background: none;
    letter-spacing: 0.05em;
    margin-top: 48px;
}
/* Responsive */
@media (max-width: 900px) {
    main {
        flex-direction: column;
        gap: 24px;
    }
    section {
        min-width: 0;
    }
}