/* 产品矩阵 - 电路板风格 */
.page-header-products {
    background: linear-gradient(135deg, #0d1b2a 0%, #1b263b 100%);
}

.page-header-products .circuit-board {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.page-header-products .chip {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(0,212,170,0.1);
    border: 2px solid rgba(0,212,170,0.3);
    box-shadow: 0 0 20px rgba(0,212,170,0.2);
}

.page-header-products .chip::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    background: rgba(0,212,170,0.2);
}

.page-header-products .trace {
    position: absolute;
    background: rgba(0,212,170,0.2);
    height: 2px;
}

.page-header-products .trace.t1 {
    top: 35%;
    left: 10%;
    width: 30%;
}

.page-header-products .trace.t2 {
    top: 55%;
    right: 10%;
    width: 25%;
}

.page-header-products .trace.t3 {
    bottom: 30%;
    left: 15%;
    width: 35%;
}

.page-header-products .node {
    position: absolute;
    width: 8px;
    height: 8px;
    background: rgba(0,212,170,0.6);
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0,212,170,0.5);
}

.page-header-products .node.n1 { top: 34%; left: 40%; }
.page-header-products .node.n2 { top: 54%; right: 35%; }
.page-header-products .node.n3 { bottom: 29%; left: 50%; }

/* ==================== 数智产品矩阵 ==================== */
.products {
    background: #f3f4f6;
    padding: 20px 0 40px;
}

.product-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 25px;
}

.product-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid #e5e7eb;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s;
}

.product-nav-item.active {
    background: #fff;
    border-color: #0d9488;
    box-shadow: 0 4px 15px rgba(13, 148, 136, 0.15);
}

.nav-icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    flex-shrink: 0;
}

.bg-brain { background: #dbeafe; }
.bg-data { background: #fef3c7; }
.bg-sense { background: #d1fae5; }
.bg-muscle { background: #e0e7ff; }
.bg-market { background: #fce7f3; }

.nav-text h4 {
    font-size: 15px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 3px;
}

.nav-text p {
    font-size: 12px;
    color: #6b7280;
}

/* 产品详情 */
.product-detail {
    background: #fff;
    border-radius: 20px;
    padding: 20px;
    margin: 0 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
}

.product-layer {
    display: none;
}

.product-layer.active {
    display: block;
    animation: fadeIn 0.4s ease;
}

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

.layer-header {
    margin-bottom: 20px;
}

.layer-tag {
    display: inline-block;
    padding: 4px 12px;
    background: #f0fdfa;
    color: #0f766e;
    font-size: 12px;
    font-weight: 600;
    border-radius: 20px;
    margin-bottom: 10px;
}

.layer-header h3 {
    font-size: 20px;
    font-weight: 700;
    color: #111827;
    line-height: 1.4;
    margin-bottom: 8px;
}

.layer-desc {
    font-size: 14px;
    color: #6b7280;
}

.layer-img {
    height: 180px;
    border-radius: 12px;
    margin-bottom: 20px;
}

.layer-features {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-bottom: 25px;
}

.feature-item {
    padding: 15px;
    background: #f9fafb;
    border-radius: 12px;
    border-left: 4px solid #0d9488;
}

.feature-item h4 {
    font-size: 15px;
    font-weight: 700;
    color: #0f766e;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 13px;
    color: #4b5563;
    line-height: 1.6;
}

.layer-content {
    padding: 20px;
    background: #f9fafb;
    border-radius: 12px;
}

.layer-content h4 {
    font-size: 16px;
    font-weight: 700;
    color: #111827;
    margin-bottom: 10px;
    line-height: 1.5;
}

.layer-content p {
    font-size: 14px;
    color: #4b5563;
    line-height: 1.8;
    text-align: justify;
}