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

body {
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    background: #111111;
    color: #fff;
    line-height: 1.6;
    overflow: hidden;
    position: relative;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 15px;
    position: relative;
    z-index: 1;
}

.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #ddd;
    margin-bottom: 1rem;
}

.hero-title {
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
}

.hero-text {
    font-size: 1.1rem;
    color: #ddd;
    max-width: 600px;
    margin-bottom: 3rem;
}

.social-links {
    display: flex;
    gap: 1.5rem;
}

.social-link {
    color: #ddd;
    text-decoration: none;
    font-size: 1.1rem;
    transition: color 0.3s, transform 0.3s;
    position: relative;
    overflow: hidden;
}

.social-link::before {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, #ff7e5f, #feb47b);
    transform: translateX(-100%);
    transition: transform 0.3s;
}

.social-link:hover::before {
    transform: translateX(0);
}

.social-link:hover {
    color: #fff;
    transform: scale(1.1);
}

.background-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.1;
    pointer-events: none;
}

.line {
    position: absolute;
    width: 1px;
    height: 100%;
    background: #fff;
    left: 20%;
}

.line:nth-child(2) { left: 40%; }
.line:nth-child(3) { left: 60%; }
.line:nth-child(4) { left: 80%; }

@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
}

#vanta-bg {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: 0; /* 确保背景在内容之下 */
}