/* 系列介绍卡 */
        .intro-card {
            background: var(--color-white);
            border-radius: var(--border-radius);
            padding: 40px 36px;
            box-shadow: var(--shadow-soft);
            border-left: 4px solid var(--color-mid);
        }
        .intro-card p {
            font-size: 0.95rem;
            color: var(--color-mid-dark);
            line-height: 1.85;
            margin-bottom: 16px;
        }
        .intro-card .highlight {
            font-family: var(--font-heading);
            font-size: 1.1rem;
            font-weight: 600;
            color: var(--color-dark);
            display: block;
            margin: 20px 0 12px;
        }

        /* 产品卡片 - 新设计 */
        .product-card {
            background: var(--color-white);
            border-radius: var(--border-radius);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
            height: 100%;
            transition: var(--transition-smooth);
            cursor: pointer;
            display: flex;
            flex-direction: column;
        }
        .product-card:hover {
            box-shadow: var(--shadow-lift);
            transform: translateY(-5px);
        }
        .product-card .product-img {
            height: 280px;
            background-size: cover;
            background-position: center;
            position: relative;
            flex-shrink: 0;
        }
        .product-card .product-img .badge-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: var(--color-dark);
            color: #fff;
            font-size: 0.72rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            letter-spacing: 0.05em;
            z-index: 2;
        }
        .product-card .product-body {
            padding: 22px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .product-card .product-body .series-label {
            font-size: 0.72rem;
            color: var(--color-mid);
            letter-spacing: 0.06em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }
        .product-card .product-body h4 {
            font-family: var(--font-heading);
            font-size: 1rem;
            font-weight: 600;
            color: var(--color-dark);
            letter-spacing: 0.03em;
            margin-bottom: 8px;
            line-height: 1.3;
        }
        .product-card .product-body .material-info {
            font-size: 0.8rem;
            color: var(--color-mid-dark);
            letter-spacing: 0.03em;
            margin-bottom: 12px;
            display: flex;
            flex-wrap: wrap;
            gap: 6px;
        }
        .product-card .product-body .material-info .info-dot {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            background: var(--color-bg-lighter);
            padding: 3px 10px;
            border-radius: 15px;
            font-size: 0.76rem;
        }
        .product-card .product-body .material-info .info-dot i {
            font-size: 0.65rem;
            color: var(--color-mid);
        }
        .product-card .product-body .features-list {
            list-style: none;
            padding: 0;
            margin: 0 0 14px;
            flex: 1;
        }
        .product-card .product-body .features-list li {
            font-size: 0.82rem;
            color: var(--color-mid-dark);
            padding: 3px 0;
            display: flex;
            align-items: flex-start;
            gap: 8px;
            line-height: 1.5;
        }
        .product-card .product-body .features-list li i {
            color: var(--color-mid);
            font-size: 0.6rem;
            margin-top: 6px;
            flex-shrink: 0;
        }
        .product-card .product-body .btn-view-detail {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border: 1.5px solid var(--color-mid);
            color: var(--color-dark);
            background: transparent;
            border-radius: 50px;
            padding: 8px 18px;
            font-size: 0.82rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            transition: var(--transition-smooth);
            cursor: pointer;
            text-align: center;
            justify-content: center;
            margin-top: auto;
            align-self: flex-start;
        }
        .product-card .product-body .btn-view-detail:hover {
            background: var(--color-dark);
            color: #fff;
            border-color: var(--color-dark);
        }

        /* 材质卖点卡片 */
        .material-point-card {
            background: var(--color-white);
            border-radius: var(--border-radius);
            padding: 26px 20px;
            box-shadow: var(--shadow-soft);
            height: 100%;
            text-align: center;
            transition: var(--transition-smooth);
        }
        .material-point-card:hover {
            box-shadow: var(--shadow-lift);
            transform: translateY(-3px);
        }
        .material-point-card .mp-icon {
            font-size: 2rem;
            color: var(--color-mid-dark);
            margin-bottom: 10px;
        }
        .material-point-card h4 {
            font-family: var(--font-heading);
            font-size: 0.95rem;
            font-weight: 600;
        }
        .material-point-card p {
            font-size: 0.82rem;
            color: var(--color-mid-dark);
        }

        /* 客户评价 */
        .testimonial-card {
            background: var(--color-white);
            border-radius: var(--border-radius);
            padding: 28px 22px;
            box-shadow: var(--shadow-soft);
            height: 100%;
            text-align: center;
            transition: var(--transition-smooth);
        }
        .testimonial-card:hover {
            box-shadow: var(--shadow-lift);
        }
        .testimonial-card .quote-icon {
            font-size: 2rem;
            color: var(--color-mid);
            opacity: 0.5;
            margin-bottom: 8px;
        }
        .testimonial-card p {
            font-size: 0.88rem;
            color: var(--color-mid-dark);
            font-style: italic;
        }
        .testimonial-card .author {
            font-size: 0.8rem;
            color: var(--color-mid);
            margin-top: 8px;
        }