/* css/module6_partners.css */

.partners-section {
    padding: 120px 0;
    background-color: #030508;
    position: relative;
    overflow: hidden;
}

/* 装饰性背景：深色雷达/赛博网格 */
.cyber-grid-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(rgba(0, 243, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 243, 255, 0.02) 1px, transparent 1px);
    background-size: 80px 80px;
    z-index: 0;
    transform: perspective(500px) rotateX(60deg) translateY(-100px) scale(2);
    opacity: 0.3;
    pointer-events: none;
}

.partners-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 标题样式 */
.section-header { text-align: center; margin-bottom: 70px; }
.cyan-heading { font-family: 'Courier New', Courier, monospace; color: #00f3ff; font-size: 1rem; letter-spacing: 4px; margin-bottom: 10px; text-shadow: 0 0 10px rgba(0, 243, 255, 0.4); }
.main-title { font-size: 2.5rem; color: #ffffff; letter-spacing: 2px; margin-bottom: 20px; }
.heading-line { width: 60px; height: 3px; background: #00f3ff; margin: 0 auto; box-shadow: 0 0 15px #00f3ff; margin-bottom: 20px; }
.section-subtitle { font-family: 'Courier New', monospace; color: #5c6784; font-size: 0.9rem; letter-spacing: 1px; }

/* 节点网格 4列布局 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

/* 独立的节点卡片 */
.partner-card {
    background: rgba(10, 15, 30, 0.8);
    border: 1px solid rgba(0, 243, 255, 0.1);
    border-radius: 6px;
    padding: 30px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    cursor: pointer;
    /* 默认去色，模拟休眠状态 */
    filter: grayscale(100%) opacity(0.7);
}

/* 悬停激活状态 */
.partner-card:hover {
    filter: grayscale(0%) opacity(1);
    border-color: #00f3ff;
    box-shadow: 0 0 25px rgba(0, 243, 255, 0.15), inset 0 0 15px rgba(0, 243, 255, 0.05);
    transform: translateY(-5px);
}

/* 扫描线动画 (隐藏状态) */
.card-scanline {
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 4px;
    background: #00f3ff;
    box-shadow: 0 0 15px #00f3ff, 0 0 30px #00f3ff;
    opacity: 0;
    z-index: 10;
}

/* 悬停时触发扫描线由上至下扫过 */
.partner-card:hover .card-scanline {
    animation: scan-down 1.5s ease-in-out infinite;
    opacity: 0.8;
}

@keyframes scan-down {
    0% { top: -10%; opacity: 0; }
    10% { opacity: 0.8; }
    90% { opacity: 0.8; }
    100% { top: 110%; opacity: 0; }
}

/* Logo容器与图片 */
.partner-logo-box {
    height: 80px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.partner-logo {
    max-width: 80%;
    max-height: 100%;
    object-fit: contain;
    transition: transform 0.4s ease;
}

.partner-card:hover .partner-logo {
    transform: scale(1.05);
}

/* 图片加载失败时的纯文字备用样式 */
.logo-fallback {
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    font-weight: bold;
    color: #e0e0e0;
    letter-spacing: 2px;
}
.partner-card:hover .logo-fallback { color: #00f3ff; }

/* 合作伙伴文字信息 */
.partner-info h4 {
    color: #fff;
    margin: 0 0 8px 0;
    font-size: 1.1rem;
    letter-spacing: 1px;
}

.partner-info p {
    color: #5c6784;
    font-size: 0.85rem;
    margin: 0;
}
.partner-card:hover .partner-info p { color: #94a3b8; }

/* 底部数据流动画条 */
.data-stream-bar {
    width: 100%;
    height: 30px;
    background: rgba(0, 243, 255, 0.05);
    border: 1px solid rgba(0, 243, 255, 0.2);
    border-radius: 4px;
    display: flex;
    align-items: center;
    padding: 0 15px;
    overflow: hidden;
}

.stream-text {
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: #00f3ff;
    white-space: nowrap;
    /* 无缝跑马灯动画 */
    animation: marquee 10s linear infinite;
}

@keyframes marquee {
    0% { transform: translateX(100%); }
    100% { transform: translateX(-100%); }
}

/* 滚动浮现动画 */
.p-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.p-reveal.active { opacity: 1; transform: translateY(0); }

/* 响应式 */
@media (max-width: 768px) {
    .partners-grid { grid-template-columns: repeat(2, 1fr); gap: 15px;}
    .partner-card { padding: 20px 10px; }
    .logo-fallback { font-size: 0.9rem; }
}