* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei";
}
body {
    background: #0a0c14;
    color: #eee;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 32px 20px;
    overflow: hidden;
    position: relative;
}
body::before {
    content: '';
    position: fixed;
    bottom: 0;
    left: 50%;
    width: 300vw;
    height: 300vh;
    transform: translateX(-50%);
    transform-origin: bottom center;
    background-image:
        radial-gradient(1.5px 1.5px at 50px 40px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 150px 100px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1.5px 1.5px at 250px 60px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 350px 140px, rgba(255,255,255,0.7), transparent),
        radial-gradient(1.5px 1.5px at 450px 30px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 550px 110px, rgba(255,255,255,0.9), transparent),
        radial-gradient(1.5px 1.5px at 650px 70px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 750px 150px, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 80px 120px, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 180px 50px, #fff, transparent),
        radial-gradient(1px 1px at 280px 160px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 380px 90px, #fff, transparent),
        radial-gradient(1px 1px at 480px 130px, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 580px 40px, #fff, transparent),
        radial-gradient(1px 1px at 680px 120px, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 780px 60px, #fff, transparent),
        radial-gradient(1px 1px at 100px 200px, #fff, transparent),
        radial-gradient(1px 1px at 200px 250px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 320px 220px, #fff, transparent),
        radial-gradient(1px 1px at 420px 280px, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 520px 200px, #fff, transparent),
        radial-gradient(1px 1px at 620px 260px, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 720px 230px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 130px 300px, rgba(255,255,255,0.9), transparent),
        radial-gradient(1.5px 1.5px at 260px 340px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 400px 310px, rgba(255,255,255,0.7), transparent),
        radial-gradient(1.5px 1.5px at 530px 360px, #fff, transparent),
        radial-gradient(1.5px 1.5px at 660px 320px, rgba(255,255,255,0.8), transparent),
        radial-gradient(1.5px 1.5px at 780px 350px, #fff, transparent);
    background-size: 800px 400px;
    background-repeat: repeat;
    animation: starRotate 400s linear infinite, twinkle 2.5s ease-in-out infinite alternate;
    z-index: 0;
    pointer-events: none;
}
@keyframes starRotate {
    from { transform: translateX(-50%) rotate(0deg); }
    to { transform: translateX(-50%) rotate(360deg); }
}
@keyframes twinkle {
    0% { opacity: 1; }
    100% { opacity: 0.8; }
}
.wrap {
    text-align: center;
    max-width: 680px;
    width: 100%;
    position: relative;
    z-index: 1;
}
h1 {
    font-size: 44px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #d4d2e4;
    letter-spacing: 2px;
}
.en {
    font-size: 17px;
    color: #7a7a90;
    margin-bottom: 28px;
    letter-spacing: 4px;
    font-weight: 300;
}
.divider {
    width: 48px;
    height: 2px;
    background: linear-gradient(90deg, #8682b0, #c8c6d8);
    margin: 0 auto 28px;
    border-radius: 2px;
}
.desc {
    color: #9a9ab0;
    font-size: 15px;
    line-height: 1.9;
    margin-bottom: 44px;
    font-weight: 300;
}
.section-title {
    font-size: 18px;
    color: #a8a6c8;
    margin: 36px 0 14px;
    font-weight: 500;
    letter-spacing: 1px;
}
.section-title::before {
    content: "";
    display: inline-block;
    width: 6px;
    height: 6px;
    background: #8682b0;
    border-radius: 50%;
    margin-right: 10px;
    vertical-align: middle;
}
.btn-group {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
    gap: 10px;
    margin-bottom: 8px;
}
a {
    display: block;
    text-decoration: none;
    padding: 13px 10px;
    border-radius: 8px;
    transition: 0.25s;
    font-size: 14px;
    font-weight: 400;
}
.gitee-btn {
    color: #d8c8ff;
    border: 1px solid #4a4468;
    background: rgba(23, 26, 36, 0.6);
}
.gitee-btn:hover {
    border-color: #9a8cd0;
    background: rgba(30, 33, 48, 0.8);
    transform: translateY(-1px);
}
.github-btn {
    color: #c0c8e0;
    border: 1px solid #2a2e40;
    background: rgba(21, 24, 32, 0.6);
}
.github-btn:hover {
    border-color: #7a82a8;
    background: rgba(27, 31, 44, 0.8);
    transform: translateY(-1px);
}
.tip {
    font-size: 13px;
    color: #666;
    margin: 6px 0 16px;
}
.footer {
    margin-top: 56px;
    padding-top: 28px;
    border-top: 1px solid #262938;
}
.footer-email {
    font-size: 14px;
    color: #7a7890;
    letter-spacing: 0.5px;
}
.copyright {
    margin-top: 16px;
    font-size: 12px;
    color: #444;
}