:root {
    --primary-bg: #f8fafc;
    --accent-color: #3b82f6;
    --text-main: #1e293b;
    --text-sub: #64748b;
    --card-bg: rgba(255, 255, 255, 0.85);
    --border-color: rgba(255, 255, 255, 0.2);
}

@media (prefers-color-scheme: dark) {
    :root {
        --primary-bg: #0f172a;
        --accent-color: #60a5fa;
        --text-main: #f1f5f9;
        --text-sub: #94a3b8;
        --card-bg: rgba(30, 41, 59, 0.75);
        --border-color: rgba(255, 255, 255, 0.05);
    }
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    overflow-x: hidden;
}

/* 动态背景背景 */
.bg-glow {
    position: fixed;
    top: 50%;
    left: 50%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
    filter: blur(80px);
    opacity: 0.1;
    z-index: -1;
    transform: translate(-50%, -50%);
    animation: move-glow 10s ease-in-out infinite alternate;
}

@keyframes move-glow {
    from { transform: translate(-60%, -40%) scale(1); }
    to { transform: translate(-40%, -60%) scale(1.1); }
}

.container {
    text-align: center;
    width: 100%;
    max-width: 680px;
    padding: 60px 40px;
    border-radius: 32px;
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1);
    animation: slide-up 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slide-up {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.status-badge {
    display: inline-flex;
    align-items: center;
    padding: 10px 20px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 32px;
    letter-spacing: 0.05em;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: var(--accent-color);
    border-radius: 50%;
    margin-right: 12px;
    box-shadow: 0 0 12px var(--accent-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.4); opacity: 0.4; }
    100% { transform: scale(1); opacity: 1; }
}

.image-wrapper {
    margin-bottom: 32px;
    width: 100%;
    display: flex;
    justify-content: center;
}

.maintenance-img {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 20px;
    transition: transform 0.3s ease;
}

.image-placeholder {
    width: 100%;
    max-width: 400px;
    aspect-ratio: 16/10;
    background: rgba(0,0,0,0.03);
    border: 2px dashed rgba(0,0,0,0.1);
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-sub);
    gap: 12px;
}

h1 {
    font-size: 2.25rem;
    margin-bottom: 16px;
    font-weight: 800;
    letter-spacing: -0.025em;
    line-height: 1.2;
}

p {
    font-size: 1.125rem;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 40px;
}

.footer {
    font-size: 0.875rem;
    color: var(--text-sub);
    opacity: 0.7;
    border-top: 1px solid var(--border-color);
    padding-top: 24px;
}

/* 响应式调整 */
@media (max-width: 640px) {
    .container {
        padding: 40px 24px;
        border-radius: 24px;
    }
    h1 { font-size: 1.75rem; }
    p { font-size: 1rem; }
    .status-badge { margin-bottom: 24px; }
}