.video-overlay {
    background: linear-gradient(rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.1));
}

/* 首页 Hero：4:3 比例容器，背景媒体铺满区域 */
.index-hero {
    width: 100%;
    max-width: 100%;
    position: relative;
    isolation: isolate;
}

.index-hero__media {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    min-width: 100%;
    min-height: 100%;
    object-fit: cover;
    object-position: center;
}

@media (max-width: 767px) {
    .index-hero .index-hero__title {
        line-height: 1.15;
        letter-spacing: -0.02em;
        word-break: break-word;
    }

    .index-hero .index-hero__lead {
        line-height: 1.65;
    }
}

.apple-card {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.apple-card:hover {
    transform: scale(1.02);
}

.timeline-item::after {
    content: '';
    position: absolute;
    left: 50%;
    bottom: -40px;
    width: 1px;
    height: 40px;
    background: #e2e8f0;
}

.timeline-item:last-child::after {
    display: none;
}

.form-input {
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1rem;
    width: 100%;
    transition: all 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(219, 234, 254, 0.9);
}

.cert-card img {
    transition: transform 0.3s ease;
}

.cert-card:hover img {
    transform: scale(1.05);
}

.filter-btn.active {
    background-color: #2563eb;
    color: white;
    border-color: #2563eb;
}

.live-dot {
    animation: pulse 2s infinite;
}

.monitor-frame {
    background: #000;
    position: relative;
    border-radius: 1.5rem;
    overflow: hidden;
    border: 8px solid #1f2937;
}

.service-point {
    position: absolute;
    width: 12px;
    height: 12px;
    background: #2563eb;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 0 10px rgba(37, 99, 235, 0.5);
}

.process-node::after {
    content: '';
    position: absolute;
    right: -50%;
    top: 50%;
    width: 100%;
    height: 1px;
    background: #e2e8f0;
    z-index: -1;
}

.process-node:last-child::after {
    display: none;
}