/* ============================================
   铭赞网络 - 微信公众号开发运营营销网站
   动画样式表 animations.css
   ============================================ */

/* === Mesh 背景漂移 === */
@keyframes meshDrift {
    0% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(2%, -2%) rotate(0.5deg); }
    100% { transform: translate(-2%, 1%) rotate(-0.5deg); }
}

/* === 球体浮动 === */
@keyframes orbFloat {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(40px, -30px) scale(1.05); }
    66% { transform: translate(-30px, 40px) scale(0.95); }
}

/* === 滚动提示 === */
@keyframes scrollHint {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(14px); opacity: 0; }
}

/* === Hero 视觉卡片浮动 === */
@keyframes cardFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* === 渐入 === */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* === 渐入向上 === */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === 渐入向下 === */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* === 缩放渐入 === */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.92);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* === 横向渐入 === */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* === Reveal 滚动触发 === */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.22, 0.61, 0.36, 1), transform 0.7s cubic-bezier(0.22, 0.61, 0.36, 1);
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* 让交错更自然 */
.reveal:nth-child(2) { transition-delay: 0.08s; }
.reveal:nth-child(3) { transition-delay: 0.16s; }
.reveal:nth-child(4) { transition-delay: 0.24s; }
.reveal:nth-child(5) { transition-delay: 0.32s; }
.reveal:nth-child(6) { transition-delay: 0.4s; }

/* === 减少动画（无障碍） === */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    .reveal {
        opacity: 1;
        transform: none;
    }
}