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

body {
    min-height: 100vh;
    font-family: "Microsoft Yahei", system-ui, sans-serif;
    background-color: #07080f;
    color: #e6e6e6;
    overflow-x: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.container {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

/* 繁星背景 */
.stars {
    position: fixed;
    inset: 0;
    z-index: 0;
    background-image:
        radial-gradient(1px 1px at 20% 30%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1px 1px at 60% 70%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1.5px 1.5px at 80% 20%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1px 1px at 40% 80%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1px 1px at 90% 50%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1.5px 1.5px at 33% 60%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1px 1px at 10% 75%, #ffffff, rgba(255, 255, 255, 0)),
        radial-gradient(1px 1px at 70% 40%, #ffffff, rgba(255, 255, 255, 0));
    background-repeat: repeat;
    background-size: 250px 250px;
    animation: twinkle 6s ease-in-out infinite alternate;
}

@keyframes twinkle {
    0% {
        opacity: 0.4;
    }
    100% {
        opacity: 0.9;
    }
}

.card {
    position: relative;
    z-index: 2;
    width: 100%;
    max-width: 460px;
    background: rgba(20, 22, 32, 0.65);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 22px;
    padding: 36px 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
    animation: cardFadeIn 0.6s ease-out;
}

@keyframes cardFadeIn {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.verify-wrap {
    text-align: center;
}

.verify-wrap h2 {
    color: #ffffff;
    font-size: 22px;
    font-weight: 500;
    margin-bottom: 16px;
}

.cf-turnstile {
    margin: 0 auto;
    width: fit-content;
}

.tip {
    margin-top: 12px;
    color: #8a8f98;
    font-size: 14px;
}

.main-content {
    display: none;
}

.main-content.show {
    display: block;
    animation: fadeUp 0.4s ease-out;
}

@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tab-header {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
}

.tab-btn {
    flex: 1;
    padding: 10px 0;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.06);
    color: #b5b8c0;
    font-size: 15px;
    cursor: pointer;
    transition: 0.25s ease;
}

.tab-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

.tab-btn.active {
    background: rgba(72, 128, 74, 0.35);
    color: #ffffff;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: fadeUp 0.35s ease-out;
}

#intro p {
    color: #d6d8de;
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 10px;
}

.link-item {
    display: block;
    text-decoration: none;
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
    padding: 14px 16px;
    border-radius: 12px;
    margin-bottom: 12px;
    border: 1px solid rgba(255, 255, 255, 0.07);
    transition: 0.25s ease;
}

.link-item:hover {
    background: rgba(255, 255, 255, 0.11);
    border-color: rgba(255, 255, 255, 0.14);
    transform: translateY(-2px);
}