* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "微软雅黑", sans-serif;
}

body {
    background-color: #000000;
    color: #f0f0f0;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

.particle-bg {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -3;
    background-image: 
        radial-gradient(2px 2px at 20px 30px, #ff3333, transparent),
        radial-gradient(2px 2px at 40px 70px, #ffdd33, transparent),
        radial-gradient(1px 1px at 90px 40px, #66ccff, transparent);
    background-repeat: repeat;
    background-size: 200px 200px;
    animation: particleMove 25s linear infinite;
}
@keyframes particleMove {
    0% { background-position: 0 0; }
    100% { background-position: 200px 200px; }
}

.radial-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    background: 
        radial-gradient(circle at 15% 25%, rgba(255, 30, 30, 0.12) 0%, transparent 45%),
        radial-gradient(circle at 85% 75%, rgba(255, 210, 20, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 50% 90%, rgba(100, 180, 255, 0.05) 0%, transparent 50%);
    animation: radialShift 14s ease-in-out infinite alternate;
}
@keyframes radialShift {
    0% { transform: translate(-40px, -30px) scale(1); }
    100% { transform: translate(40px, 30px) scale(1.1); }
}

.wrap {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 40px;
    position: relative;
    z-index: 1;
}

.site-header {
    margin-bottom: 80px;
    text-align: center;
}
.ultra-neon-title {
    font-size: 64px;
    letter-spacing: 6px;
    color: #ffffff;
    text-shadow:
        0 0 10px #ff2222,
        0 0 20px #ff2222,
        0 0 40px #ff2222,
        0 0 80px #ff2222,
        0 0 120px rgba(255, 34, 34, 0.6);
    animation: neonExtreme 4s ease-in-out infinite alternate;
}
@keyframes neonExtreme {
    0% {
        opacity: 0.85;
        text-shadow:
            0 0 8px #ff2222,
            0 0 16px #ff2222,
            0 0 32px #ff2222;
    }
    100% {
        opacity: 1;
        text-shadow:
            0 0 16px #ff2222,
            0 0 36px #ff2222,
            0 0 64px #ff2222,
            0 0 100px rgba(255, 34, 34, 0.7);
    }
}
.light-divider {
    width: 360px;
    height: 5px;
    margin: 24px auto 0;
    background: linear-gradient(90deg, transparent, #ff2222, #ffdd22, #ff2222, transparent);
    box-shadow: 0 0 15px #ff2222;
    border-radius: 3px;
}

.ultra-card {
    background: linear-gradient(150deg, #0f0f0f, #050505);
    border: 1px solid rgba(255, 40, 40, 0.2);
    border-radius: 20px;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0,0,0,0.8), inset 0 0 40px rgba(255,30,30,0.05);
}
.scan-light {
    position: absolute;
    top: 0;
    left: -120%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 50, 50, 0.18), transparent);
    animation: scanSweep 8s linear infinite;
    z-index: 1;
}
@keyframes scanSweep {
    0% { left: -120%; }
    100% { left: 120%; }
}
.inner-shadow {
    position: absolute;
    inset: 0;
    box-shadow: inset 0 0 60px rgba(0,0,0,0.9);
    z-index: 0;
}

.intro-card {
    padding: 55px 50px;
    margin-bottom: 85px;
}
.intro-card h2 {
    color: #ffdd22;
    font-size: 32px;
    margin-bottom: 24px;
    text-shadow: 0 0 8px rgba(255, 221, 34, 0.5);
    position: relative;
    z-index: 2;
}
.intro-card p {
    font-size: 19px;
    line-height: 2;
    color: #cccccc;
    position: relative;
    z-index: 2;
}

.link-group {
    margin-bottom: 100px;
}
.link-block {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 35px 40px;
    margin-bottom: 35px;
}
.qq-block {
    justify-content: center;
}
.link-block p {
    font-size: 20px;
    color: #dddddd;
    position: relative;
    z-index: 2;
}

.neon-btn {
    display: inline-block;
    padding: 16px 40px;
    border-radius: 12px;
    text-decoration: none;
    font-size: 19px;
    font-weight: 500;
    position: relative;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.2, 0, 0.2, 1);
}
.bili-btn {
    background: #fb7299;
    color: #fff;
    box-shadow: 0 0 12px rgba(251, 114, 153, 0.4);
}
.bili-btn:hover {
    transform: scale(1.08) translateY(-6px);
    box-shadow: 0 0 30px rgba(251, 114, 153, 0.7);
    background: #ff88ad;
}

.glow-text-link {
    font-size: 19px;
    color: #66bbff;
    text-decoration: none;
    transition: 0.35s;
    text-shadow: 0 0 6px rgba(102, 187, 255, 0.4);
    position: relative;
    z-index: 2;
}
.glow-text-link:hover {
    color: #b3d9ff;
    text-shadow: 0 0 14px rgba(102, 187, 255, 0.8);
    text-decoration: underline;
}

.download-box {
    text-align: center;
    margin-top: 60px;
}
.super-download-btn {
    position: relative;
    display: inline-block;
    padding: 26px 80px;
    background: #ff2222;
    border-radius: 14px;
    text-decoration: none;
    overflow: hidden;
}
.btn-text {
    font-size: 26px;
    font-weight: bold;
    color: #fff;
    position: relative;
    z-index: 5;
}
.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 2px solid #ff2222;
    border-radius: 14px;
    animation: pulseRingAnim 3s ease-out infinite;
}
.ring1 {
    width: 100%;
    height: 100%;
}
.ring2 {
    width: 100%;
    height: 100%;
    animation-delay: 1s;
}
.ring3 {
    width: 100%;
    height: 100%;
    animation-delay: 2s;
}
@keyframes pulseRingAnim {
    0% {
        width: 100%;
        height: 100%;
        opacity: 0.8;
    }
    100% {
        width: 180%;
        height: 180%;
        opacity: 0;
    }
}
.super-download-btn:hover {
    background: #ff3d3d;
}

#mouseTrail {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 100;
}

.spider-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -3;
    pointer-events: none;
}

.spider-bg-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}