/* =============================================================================
   0. 本地字体加载 (Local Fonts)
   ============================================================================= */
@font-face {
    font-family: 'Orbitron';
    src: url('fonts/orbitron.woff2') format('woff2');
    font-weight: 400 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Inter';
    src: url('fonts/inter.woff2') format('woff2');
    font-weight: 400 700;
    font-style: normal;
    font-display: swap;
}

/* =============================================================================
   1. 加载层
   ============================================================================= */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #000;
    background-image:
        radial-gradient(circle at center, hsl(var(--h), 40%, 12%) 0%, #000 100%),
        url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
    background-blend-mode: overlay;
    z-index: 100000;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 1s cubic-bezier(0.19, 1, 0.22, 1), visibility 1s;
}

.loading-overlay.ready {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loader-container {
    text-align: center;
    position: relative;
    padding: 60px;
}

.loader-scanner {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    box-shadow: 0 0 15px var(--primary);
    animation: scannerMove 3s linear infinite;
}

.loader-logo {
    font-size: 80px;
    margin-bottom: 30px;
    filter: drop-shadow(0 0 30px var(--primary-glow));
    animation: pulse-glow 2s ease-in-out infinite;
}

.loader-text h2 {
    font-family: var(--font-head);
    font-size: 2rem;
    color: white;
    letter-spacing: 4px;
    margin-bottom: 15px;
}

.loader-text p {
    color: var(--primary);
    font-size: 0.9rem;
    font-family: monospace;
    letter-spacing: 2px;
}

.loader-bar-bg {
    width: 300px;
    height: 4px;
    background: rgba(255, 255, 255, 0.1);
    margin: 20px auto;
    border-radius: 2px;
    overflow: hidden;
}

.loader-bar-fill {
    width: 0%;
    height: 100%;
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);
    transition: width 0.3s ease-out;
}

.loader-status {
    font-size: 0.75rem !important;
    opacity: 0.6;
    margin-top: 10px;
}

@keyframes scannerMove {
    0% {
        top: 0;
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        top: 100%;
        opacity: 0;
    }
}

@keyframes pulse-glow {

    0%,
    100% {
        transform: scale(1);
        filter: drop-shadow(0 0 30px var(--primary-glow));
    }

    50% {
        transform: scale(1.05);
        filter: drop-shadow(0 0 50px var(--primary));
    }
}