/* 产品展示区域样式 */
.product-showcase {
    padding: 60px 0;
    background: linear-gradient(135deg, #f8faff 0%, #e8f4fd 50%, #f0f8ff 100%);
    position: relative;
    overflow: hidden;
}

.product-showcase::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e9ecef" stroke-width="0.5" opacity="0.3"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>') repeat;
    opacity: 0.5;
}

.intro-header {
    text-align: center;
    margin-bottom: 35px;
    position: relative;
    z-index: 2;
}

.intro-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 12px;
    line-height: 1.3;
    text-shadow: 0 2px 4px rgba(0, 123, 255, 0.1);
}

.brand-name {
    color: #007bff;
    font-weight: 800;
    background: linear-gradient(135deg, #007bff, #0056b3);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.intro-header p {
    font-size: 16px;
    color: #5a6c7d;
    font-weight: 500;
    opacity: 0.9;
}

.intro-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    position: relative;
    z-index: 2;
    margin-top: 40px;
    max-width: 1800px;
    margin-left: auto;
    margin-right: auto;
    padding: 0 40px;
}

@media (max-width: 1200px) {
    .intro-cards {
        grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    }
}

@media (max-width: 768px) {
    .intro-cards {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 12px;
        margin-top: 24px;
    }
}

.intro-card {
    background: linear-gradient(145deg, #f8fafc, #e2e8f0);
    border-radius: 20px;
    padding: 28px 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 
        12px 12px 30px rgba(0, 0, 0, 0.08),
        -12px -12px 30px rgba(255, 255, 255, 0.9),
        inset 0 0 0 1px rgba(255, 255, 255, 0.3);
}

@media (max-width: 768px) {
    .intro-card {
        padding: 18px 16px;
        border-radius: 16px;
    }
    
    .card-content {
        gap: 12px;
    }
    
    .card-content h3 {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    .card-icon {
        font-size: 28px;
    }
    
    .card-right {
        min-width: 100px;
    }
    
    .card-content li {
        font-size: 11px;
        margin-bottom: 4px;
        padding: 2px 3px;
        gap: 4px;
    }
    
    .card-content li i {
        font-size: 11px;
        margin-right: 4px;
        width: 12px;
    }
}

.intro-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.intro-card.card-blue::before {
    background: linear-gradient(135deg, rgba(66, 133, 244, 0.03), rgba(26, 115, 232, 0.03));
}

.intro-card.card-purple::before {
    background: linear-gradient(135deg, rgba(142, 68, 173, 0.03), rgba(155, 89, 182, 0.03));
}

.intro-card.card-teal::before {
    background: linear-gradient(135deg, rgba(26, 188, 156, 0.03), rgba(22, 160, 133, 0.03));
}

.intro-card:hover {
    transform: translateY(-4px);
    box-shadow: 
        16px 16px 40px rgba(0, 0, 0, 0.1),
        -16px -16px 40px rgba(255, 255, 255, 0.95),
        inset 0 0 0 1px rgba(59, 130, 246, 0.1);
}

.intro-card:hover::before {
    opacity: 1;
}

.card-icon {
    font-size: 36px;
    margin-bottom: 0;
    display: block;
    color: #64748b;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.intro-card:hover .card-icon {
    transform: scale(1.1);
    color: #475569;
}

.card-content {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.card-left {
    flex: 1;
}

.card-right {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 140px;
}

.card-content h3 {
    font-size: 16px;
    color: #1e293b;
    margin-bottom: 10px;
    font-weight: 600;
    line-height: 1.2;
    transition: all 0.3s ease;
    text-align: center;
}

/* 卡片标题渐变色彩 */
.card-blue .card-content h3 {
    background: linear-gradient(135deg, #2196F3, #1565C0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.card-purple .card-content h3 {
    background: linear-gradient(135deg, #9C27B0, #6A1B9A);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.card-teal .card-content h3 {
    background: linear-gradient(135deg, #009688, #004D40);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
}

.intro-card:hover .card-content h3 {
    transform: translateY(-2px);
    color: #1a252f;
    text-shadow: 2px 2px 4px rgba(255, 255, 255, 0.9);
}

.card-content ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.card-content li {
    display: flex;
    align-items: center;
    margin-bottom: 6px;
    font-size: 13px;
    color: #64748b;
    line-height: 1.2;
    gap: 6px;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    text-shadow: 0.5px 0.5px 1px rgba(255, 255, 255, 0.7);
    padding: 3px 4px;
    border-radius: 6px;
    transform-origin: left center;
    font-weight: 500;
}

/* 蓝色卡片文字颜色 */
.card-blue .card-content li {
    color: #1976D2;
    background: linear-gradient(90deg, rgba(33, 150, 243, 0.05), rgba(33, 150, 243, 0.02));
}

.card-blue .card-content li:hover {
    transform: translateX(8px) scale(1.05);
    color: #0D47A1;
    text-shadow: 1px 1px 3px rgba(33, 150, 243, 0.3);
    background: linear-gradient(90deg, rgba(33, 150, 243, 0.15), rgba(33, 150, 243, 0.08));
    box-shadow: 0 2px 8px rgba(33, 150, 243, 0.2);
}

/* 紫色卡片文字颜色 */
.card-purple .card-content li {
    color: #7B1FA2;
    background: linear-gradient(90deg, rgba(156, 39, 176, 0.05), rgba(156, 39, 176, 0.02));
}

.card-purple .card-content li:hover {
    transform: translateX(8px) scale(1.05);
    color: #4A148C;
    text-shadow: 1px 1px 3px rgba(156, 39, 176, 0.3);
    background: linear-gradient(90deg, rgba(156, 39, 176, 0.15), rgba(156, 39, 176, 0.08));
    box-shadow: 0 2px 8px rgba(156, 39, 176, 0.2);
}

/* 青色卡片文字颜色 */
.card-teal .card-content li {
    color: #00695C;
    background: linear-gradient(90deg, rgba(0, 150, 136, 0.05), rgba(0, 150, 136, 0.02));
}

.card-teal .card-content li:hover {
    transform: translateX(8px) scale(1.05);
    color: #004D40;
    text-shadow: 1px 1px 3px rgba(0, 150, 136, 0.3);
    background: linear-gradient(90deg, rgba(0, 150, 136, 0.15), rgba(0, 150, 136, 0.08));
    box-shadow: 0 2px 8px rgba(0, 150, 136, 0.2);
}

.card-content li:last-child {
    margin-bottom: 0;
}

/* 卡片特定颜色主题 */
.card-blue {
    background: linear-gradient(135deg, #e8f4fd, #f0f8ff);
    box-shadow: 
        12px 12px 24px rgba(33, 150, 243, 0.1),
        -12px -12px 24px rgba(255, 255, 255, 0.95),
        inset 2px 2px 4px rgba(255, 255, 255, 0.9),
        inset -2px -2px 4px rgba(33, 150, 243, 0.08);
}

.card-blue:hover {
    background: linear-gradient(135deg, #e0f1fc, #ecf6fe);
    box-shadow: 
        16px 16px 32px rgba(33, 150, 243, 0.15),
        -16px -16px 32px rgba(255, 255, 255, 0.98),
        inset 3px 3px 6px rgba(255, 255, 255, 0.95),
        inset -3px -3px 6px rgba(33, 150, 243, 0.12);
}

.card-blue:hover .card-content h3 {
    color: #4285f4;
}

.card-purple {
    background: linear-gradient(135deg, #f8f0fa, #faf5fb);
    box-shadow: 
        12px 12px 24px rgba(156, 39, 176, 0.1),
        -12px -12px 24px rgba(255, 255, 255, 0.95),
        inset 2px 2px 4px rgba(255, 255, 255, 0.9),
        inset -2px -2px 4px rgba(156, 39, 176, 0.08);
}

.card-purple:hover {
    background: linear-gradient(135deg, #f5ecf7, #f9f3fa);
    box-shadow: 
        16px 16px 32px rgba(156, 39, 176, 0.15),
        -16px -16px 32px rgba(255, 255, 255, 0.98),
        inset 3px 3px 6px rgba(255, 255, 255, 0.95),
        inset -3px -3px 6px rgba(156, 39, 176, 0.12);
}

.card-purple:hover .card-content h3 {
    color: #8e44ad;
}

.card-teal {
    background: linear-gradient(135deg, #e8f5f3, #f0faf9);
    box-shadow: 
        12px 12px 24px rgba(0, 150, 136, 0.1),
        -12px -12px 24px rgba(255, 255, 255, 0.95),
        inset 2px 2px 4px rgba(255, 255, 255, 0.9),
        inset -2px -2px 4px rgba(0, 150, 136, 0.08);
}

.card-teal:hover {
    background: linear-gradient(135deg, #e0f2ef, #f0f9f7);
    box-shadow: 
        16px 16px 32px rgba(0, 150, 136, 0.15),
        -16px -16px 32px rgba(255, 255, 255, 0.98),
        inset 3px 3px 6px rgba(255, 255, 255, 0.95),
        inset -3px -3px 6px rgba(0, 150, 136, 0.12);
}

.card-teal:hover .card-content h3 {
    color: #1abc9c;
}

/* Font Awesome图标颜色修饰 */
.card-content li i {
    margin-right: 8px;
    font-size: 14px;
    width: 16px;
    text-align: center;
    display: inline-block;
    transition: all 0.3s ease;
    filter: drop-shadow(0.5px 0.5px 1px rgba(0, 0, 0, 0.1));
}

/* 蓝色卡片图标颜色 */
.card-blue .card-content li i {
    color: #2196F3;
    text-shadow: 0 0 8px rgba(33, 150, 243, 0.3);
}

.card-blue .card-content li:hover i {
    color: #1976D2;
    transform: scale(1.2) rotate(5deg);
    text-shadow: 0 0 12px rgba(33, 150, 243, 0.5);
}

.card-blue .card-icon i {
    color: #1565C0;
    font-size: 28px;
    text-shadow: 0 0 15px rgba(21, 101, 192, 0.4);
}

/* 紫色卡片图标颜色 */
.card-purple .card-content li i {
    color: #9C27B0;
    text-shadow: 0 0 8px rgba(156, 39, 176, 0.3);
}

.card-purple .card-content li:hover i {
    color: #7B1FA2;
    transform: scale(1.2) rotate(-5deg);
    text-shadow: 0 0 12px rgba(156, 39, 176, 0.5);
}

.card-purple .card-icon i {
    color: #6A1B9A;
    font-size: 28px;
    text-shadow: 0 0 15px rgba(106, 27, 154, 0.4);
}

/* 青色卡片图标颜色 */
.card-teal .card-content li i {
    color: #009688;
    text-shadow: 0 0 8px rgba(0, 150, 136, 0.3);
}

.card-teal .card-content li:hover i {
    color: #00695C;
    transform: scale(1.2) rotate(5deg);
    text-shadow: 0 0 12px rgba(0, 150, 136, 0.5);
}

.card-teal .card-icon i {
    color: #004D40;
    font-size: 28px;
    text-shadow: 0 0 15px rgba(0, 77, 64, 0.4);
}

/* 添加彩色波纹效果 */
.intro-card::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.6s ease;
    pointer-events: none;
    z-index: 1;
}

.card-blue::before {
    background: radial-gradient(circle, rgba(33, 150, 243, 0.15) 0%, rgba(33, 150, 243, 0.05) 50%, transparent 70%);
}

.card-blue:hover::before {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(33, 150, 243, 0.2) 0%, rgba(33, 150, 243, 0.08) 50%, transparent 70%);
}

.card-purple::before {
    background: radial-gradient(circle, rgba(156, 39, 176, 0.15) 0%, rgba(156, 39, 176, 0.05) 50%, transparent 70%);
}

.card-purple:hover::before {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(156, 39, 176, 0.2) 0%, rgba(156, 39, 176, 0.08) 50%, transparent 70%);
}

.card-teal::before {
    background: radial-gradient(circle, rgba(0, 150, 136, 0.15) 0%, rgba(0, 150, 136, 0.05) 50%, transparent 70%);
}

.card-teal:hover::before {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 150, 136, 0.2) 0%, rgba(0, 150, 136, 0.08) 50%, transparent 70%);
}

/* 添加彩色边框装饰 */
.intro-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    padding: 2px;
    background: linear-gradient(45deg, transparent, transparent);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: exclude;
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    transition: all 0.3s ease;
    opacity: 0;
}

.card-blue::after {
    background: linear-gradient(45deg, #2196F3, #1565C0, #0D47A1, #2196F3);
}

.card-purple::after {
    background: linear-gradient(45deg, #9C27B0, #6A1B9A, #4A148C, #9C27B0);
}

.card-teal::after {
    background: linear-gradient(45deg, #009688, #004D40, #00251A, #009688);
}

.intro-card:hover::after {
    opacity: 0.6;
    background-size: 200% 200%;
    animation: borderGlow 2s ease-in-out infinite;
}

@keyframes borderGlow {
    0%, 100% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
}

/* 确保内容在波纹之上 */
.intro-card > * {
    position: relative;
    z-index: 2;
}

/* 添加3D透视效果 */
.intro-cards {
    perspective: 1000px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .product-showcase {
        padding: 80px 0 40px 0;
    }
    
    .intro-header h2 {
        font-size: 24px;
        margin-bottom: 12px;
    }
    
    .intro-header p {
        font-size: 16px;
    }
    
    .intro-cards {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .intro-card {
        padding: 16px 12px;
        border-radius: 16px;
    }
    
    .card-icon {
        font-size: 24px;
        margin-right: 6px;
        margin-bottom: 20px;
    }
    
    .card-content h3 {
        font-size: 14px;
        margin-bottom: 20px;
    }
    
    .card-content li {
        font-size: 11px;
        margin-bottom: 14px;
    }
}

@media (max-width: 480px) {
    .intro-header h2 {
        font-size: 20px;
    }
    
    .intro-card {
        padding: 24px 16px;
    }
    
    .card-content h3 {
        font-size: 16px;
    }
    
    .card-content li {
        font-size: 13px;
    }
}

/* 动画效果 */
.intro-card {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.intro-card.fade-in-up {
    opacity: 1;
    transform: translateY(0);
}

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

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

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}