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

body {
    font-family: 'Microsoft YaHei', Arial, sans-serif;
    background: #000;
    color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow: hidden;
}

.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.loading-text {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 80px;
    letter-spacing: 8px;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.countdown-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 120px;
}

.countdown-ring {
    position: absolute;
    transform: rotate(-90deg);
}

.countdown-circle-bg {
    fill: none;
    stroke: #1a1a1a;
    stroke-width: 20;
}

.countdown-circle {
    fill: none;
    stroke: url(#gradient);
    stroke-width: 20;
    stroke-linecap: round;
    stroke-dasharray: 754;
    stroke-dashoffset: 0;
    filter: url(#glow);
    animation: countdown 5s linear forwards;
    box-shadow: 0 0 40px rgba(255, 0, 255, 0.8),
                0 0 80px rgba(0, 255, 255, 0.6);
}

@keyframes countdown {
    to {
        stroke-dashoffset: 754;
    }
}

.countdown-number {
    position: absolute;
    font-size: 72px;
    font-weight: bold;
    color: #fff;
    z-index: 10;
    text-shadow: 0 0 30px rgba(255, 255, 255, 0.8);
}

.footer-text {
    font-size: 18px;
    color: #888;
    letter-spacing: 2px;
    animation: blink 1.5s ease-in-out infinite;
}

@keyframes blink {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.3;
    }
}

/* 添加发光效果 */
.countdown-wrapper::before {
    content: '';
    position: absolute;
    width: 260px;
    height: 260px;
    border-radius: 50%;
    background: radial-gradient(circle, 
        rgba(255, 0, 255, 0.3) 0%, 
        rgba(138, 43, 226, 0.2) 25%,
        rgba(0, 0, 255, 0.1) 50%,
        transparent 70%);
    animation: pulse 2s ease-in-out infinite;
    z-index: -1;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.7;
    }
}