/* 产品介绍区域样式 - 优化版 */
.product-intro-section {
    background: linear-gradient(135deg, var(--bg-section) 0%, var(--border-light) 100%);
    position: relative;
    overflow: hidden;
}

.product-intro-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><radialGradient id="a" cx="50%" cy="50%"><stop offset="0%" stop-color="var(--primary-color)" stop-opacity="0.05"/><stop offset="100%" stop-color="var(--primary-color)" stop-opacity="0"/></radialGradient></defs><circle cx="200" cy="200" r="150" fill="url(%23a)"/><circle cx="800" cy="800" r="200" fill="url(%23a)"/></svg>') no-repeat;
    background-size: cover;
    pointer-events: none;
}

/* 产品描述卡片 */
.product-desc-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--primary-alpha-10);
    position: relative;
    overflow: hidden;
    transition: var(--transition-normal);
}

.product-desc-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.product-desc-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.product-title {
    color: var(--primary-color);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    position: relative;
}

.product-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
}

.product-desc {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 0;
}

.highlight-text {
    background: linear-gradient(120deg, var(--primary-alpha-10) 0%, var(--primary-alpha-20) 100%);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    color: var(--primary-color);
}

/* 核心特点样式 */
.features-section {
    background: var(--bg-white);
}

.features-title {
    text-align: center;
    color: var(--text-primary);
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 3rem;
    position: relative;
}

.features-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
}

.feature-table {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.feature-table thead {
    background: var(--gradient-primary);
}

.feature-table thead th {
    color: var(--text-white);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1.2rem 1rem;
    border: none;
    text-align: center;
}

.feature-table tbody tr {
    transition: var(--transition-normal);
}

.feature-table tbody tr:hover {
    background-color: var(--primary-alpha-10);
}

.feature-table tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    font-size: 0.95rem;
    line-height: 1.6;
}

.feature-table tbody tr:last-child td {
    border-bottom: none;
}

.feature-dimension {
    font-weight: 600;
    color: var(--primary-color);
    background: var(--primary-alpha-10);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.8rem;
    display: inline-block;
    margin: 0.2rem 0;
}

/* 系列速览卡片样式 */
.series-section {
    background: linear-gradient(135deg, var(--bg-section) 0%, var(--border-light) 100%);
}

.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.series-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 1.8rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.series-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient-primary);
}

.series-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.series-scenario {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.8rem;
}

.series-name {
    color: var(--primary-color);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.series-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* 应用场景表格 */
.application-table {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-light);
}

.application-table thead {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--secondary-color) 100%);
}

.application-table thead th {
    color: var(--text-white);
    font-weight: 600;
    font-size: 1.1rem;
    padding: 1.2rem 1rem;
    border: none;
    text-align: center;
}

.application-table tbody tr:hover {
    background-color: rgba(40, 167, 69, 0.05);
}

.application-table tbody td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-light);
    vertical-align: middle;
    font-size: 0.95rem;
    line-height: 1.6;
}

.app-industry {
    font-weight: 600;
    color: var(--accent-color);
    background: rgba(40, 167, 69, 0.05);
    border-radius: var(--radius-sm);
    padding: 0.5rem 0.8rem;
    display: inline-block;
    margin: 0.2rem 0;
}

.recommended-series {
    background: linear-gradient(135deg, var(--primary-alpha-10) 0%, var(--primary-alpha-20) 100%);
    color: var(--primary-color);
    font-weight: 600;
    padding: 0.4rem 0.8rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--primary-alpha-20);
    display: inline-block;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-desc-card {
        padding: 1.5rem;
    }

    .product-title {
        font-size: 1.6rem;
    }

    .product-desc {
        font-size: 1rem;
    }

    .features-title {
        font-size: 1.8rem;
    }

    .feature-table,
    .application-table {
        font-size: 0.85rem;
    }

    .feature-table thead th,
    .application-table thead th {
        padding: 0.8rem 0.5rem;
        font-size: 0.95rem;
    }

    .feature-table tbody td,
    .application-table tbody td {
        padding: 0.8rem 0.5rem;
    }

    .series-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .series-card {
        padding: 1.5rem;
    }
}

/* 动画效果 */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up:nth-child(1) {
    animation-delay: 0.1s;
}

.fade-in-up:nth-child(2) {
    animation-delay: 0.2s;
}

.fade-in-up:nth-child(3) {
    animation-delay: 0.3s;
}

.fade-in-up:nth-child(4) {
    animation-delay: 0.4s;
}

.fade-in-up:nth-child(5) {
    animation-delay: 0.5s;
}

.fade-in-up:nth-child(6) {
    animation-delay: 0.6s;
}

/* 滚动动画 */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease;
}

.scroll-reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}