/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #764ba2, #5a4b8c);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #667eea;
    border: 2px solid #667eea;
}

/* 面包屑导航样式 */
.breadcrumb {
    margin: 20px 0;
    padding: 0;
}

.breadcrumb ol {
    display: flex;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 14px;
    color: #666;
}

.breadcrumb li {
    display: flex;
    align-items: center;
}

.breadcrumb li:not(:last-child)::after {
    content: '>';
    margin: 0 8px;
    color: #999;
    font-weight: normal;
}

.breadcrumb a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb a:hover {
    color: #764ba2;
    text-decoration: underline;
}

.breadcrumb li:last-child span {
    color: #333;
    font-weight: 500;
}

@media (max-width: 768px) {
    .breadcrumb {
        margin: 15px 0;
    }
    
    .breadcrumb ol {
        font-size: 12px;
    }
    
    .breadcrumb li:not(:last-child)::after {
        margin: 0 6px;
    }
}

.btn-secondary:hover {
    background: #667eea;
    color: white;
}

/* 产品和服务页面操作按钮样式 */
.product-actions,
.service-actions {
    margin-top: 25px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
    display: flex;
    gap: 15px;
    justify-content: flex-start;
    align-items: center;
}

.product-actions .btn,
.service-actions .btn {
    min-width: 120px;
    text-align: center;
    font-size: 14px;
    padding: 10px 20px;
}

.product-actions .btn-primary,
.service-actions .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.product-actions .btn-primary:hover,
.service-actions .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.product-actions .btn-secondary,
.service-actions .btn-secondary {
    background: transparent;
    color: #6c757d;
    border: 2px solid #dee2e6;
}

.product-actions .btn-secondary:hover,
.service-actions .btn-secondary:hover {
    background: #f8f9fa;
    color: #495057;
    border-color: #adb5bd;
}

/* Hero Section Styles */
.hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 60px 0;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
}

.hero-section .container {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-content {
    color: white;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-block;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 25px;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.badge-text {
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    font-weight: 300;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-bottom: 2.5rem;
}

.feature-tag {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.btn-outline:hover {
    background: white;
    color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.system-preview {
    perspective: 1000px;
    width: 100%;
    max-width: 500px;
}

.system-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transform: rotateY(-5deg) rotateX(5deg);
    transition: transform 0.3s ease;
}

.system-card:hover {
    transform: rotateY(0deg) rotateX(0deg);
}

.system-header {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.8rem;
    background: #4caf50;
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { box-shadow: 0 0 10px rgba(76, 175, 80, 0.5); }
    50% { box-shadow: 0 0 20px rgba(76, 175, 80, 0.8); }
    100% { box-shadow: 0 0 10px rgba(76, 175, 80, 0.5); }
}

.system-title {
    font-weight: 600;
    color: #2c3e50;
    font-size: 1.1rem;
}

.system-modules {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.module-item {
    display: flex;
    align-items: center;
    padding: 0.8rem;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.module-item:hover {
    background: #e9ecef;
    transform: translateY(-2px);
}

.module-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    margin-right: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: white;
    font-weight: bold;
}

.module-icon.hydrogen { background: linear-gradient(45deg, #4caf50, #81c784); }
.module-icon.control { background: linear-gradient(45deg, #2196f3, #64b5f6); }
.module-icon.separation { background: linear-gradient(45deg, #ff9800, #ffb74d); }
.module-icon.safety { background: linear-gradient(45deg, #f44336, #ef5350); }

.module-icon::before {
    content: "⚡";
}

.module-icon.hydrogen::before { content: "H₂"; font-size: 12px; }
.module-icon.control::before { content: "⚙"; }
.module-icon.separation::before { content: "⚗"; }
.module-icon.safety::before { content: "🛡"; }

.module-item span {
    font-size: 0.9rem;
    color: #495057;
    font-weight: 500;
}

.system-stats {
    display: flex;
    justify-content: space-between;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.stat-item {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 0.2rem;
}

.stat-label {
    font-size: 0.8rem;
    color: #6c757d;
    font-weight: 500;
}

/* Product Overview Section */
.product-overview-section {
    padding: 5rem 0;
    background: #f8f9fa;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 1rem;
    font-weight: 700;
}

.section-subtitle {
    font-size: 1.2rem;
    color: #6c757d;
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
    text-align: center !important; /* 强制居中 */
}

.overview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.overview-text {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.content-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.content-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
    margin-bottom: 1rem;
}

.content-card h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 600;
}

.content-card p {
    color: #6c757d;
    line-height: 1.6;
    margin: 0;
}

.overview-features {
    display: flex;
    align-items: center;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    width: 100%;
}

.feature-item {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #667eea, #764ba2);
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.12);
}

.feature-number {
    display: inline-block;
    width: 32px;
    height: 32px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    border-radius: 50%;
    text-align: center;
    line-height: 32px;
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.feature-item h4 {
    color: #2c3e50;
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.feature-item p {
    color: #6c757d;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

/* Technical Advantages Section */
.technical-advantages-section {
    padding: 5rem 0;
    background: white;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.advantage-card.modern {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.advantage-card.modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.advantage-card.modern:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.advantage-card.modern:hover::before {
    transform: scaleX(1);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.card-icon.precision {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

.card-icon.analysis {
    background: linear-gradient(135deg, #4caf50, #81c784);
    color: white;
}

.card-icon.operation {
    background: linear-gradient(135deg, #2196f3, #64b5f6);
    color: white;
}

.card-icon.stability {
    background: linear-gradient(135deg, #ff9800, #ffb74d);
    color: white;
}

.card-icon.safety {
    background: linear-gradient(135deg, #f44336, #ef5350);
    color: white;
}

.card-icon.modular {
    background: linear-gradient(135deg, #9c27b0, #ba68c8);
    color: white;
}

.advantage-card.modern:hover .card-icon {
    transform: scale(1.1) rotate(5deg);
}

.card-badge {
    background: rgba(102, 126, 234, 0.1);
    color: #667eea;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.advantage-card.modern h3 {
    color: #2c3e50;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.advantage-card.modern p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.card-footer {
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-highlight {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
}

/* Responsive Design for Technical Advantages */
@media (max-width: 1024px) {
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .advantages-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .advantage-card.modern {
        padding: 1.5rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .card-badge {
         align-self: flex-end;
     }
}

/* Hero Section Responsive Design */
@media (max-width: 1024px) {
    .hero-section .container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .system-card {
        transform: none;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .hero-section {
        min-height: 80vh;
    }
    
    .hero-section .container {
        min-height: 80vh;
        padding: 2rem 1rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
        flex-direction: column;
        align-items: center;
    }
    
    .btn-large {
        width: 100%;
        max-width: 280px;
        text-align: center;
    }
    
    .system-modules {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }
    
    .system-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .stat-item {
        padding: 0.5rem;
        background: rgba(0, 0, 0, 0.05);
        border-radius: 8px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .system-card {
        padding: 1.5rem;
    }
    
    .feature-tag {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
}

/* 产品页面统一样式 */
.product-layout {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.product-overview {
    margin-bottom: 60px;
}

.product-header {
    text-align: center;
    margin-bottom: 40px;
}

.product-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.2;
}

/* 联系我们页面标题样式 */
.page-header {
    text-align: center;
    margin-bottom: 40px;
}

.page-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.2;
}

.page-header .page-description {
    font-size: 18px;
    color: #666;
    font-weight: 500;
    margin: 0;
}

.product-subtitle {
    font-size: 18px;
    color: #666;
    font-weight: 500;
}

.product-intro {
    margin-bottom: 40px;
}

.intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
    margin-bottom: 40px;
}

.intro-text {
    padding-right: 20px;
    text-align: left;
}

.intro-text p:not(.tea-definition) {
    color: #333;
    text-align: left !important;
}

.intro-text p {
    text-align: left !important;
}

/* TEA定义段落特殊样式 */
.tea-definition {
    margin: 16px 0 20px 0;
    font-weight: 400;
    color: #333;
}

.product-image-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.product-photo {
    width: 100%;
    max-width: 700px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product-photo:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.2);
}

.image-caption {
    margin-top: 15px;
    font-size: 14px;
    color: #666;
    text-align: center;
    font-style: italic;
}

.system-diagram {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 30px;
    margin-top: 20px;
}

.system-diagram h3 {
    font-size: 22px;
    color: #333;
    margin-bottom: 25px;
    text-align: center;
    border-bottom: 2px solid #007bff;
    padding-bottom: 10px;
}

.diagram-container {
    display: flex;
    justify-content: center;
    align-items: center;
    background: white;
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.intro-content h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 20px;
    border-bottom: 3px solid #007bff;
    padding-bottom: 10px;
}

/* 服务价值标题特殊样式 - 字号缩小4号，无蓝线，增加上边距 */
.intro-content h2:nth-of-type(2) {
    font-size: 20px;
    border-bottom: none;
    padding-bottom: 0;
    margin-top: 30px;
}

.intro-content h3 {
    font-size: 20px;
    color: #333;
    margin: 25px 0 15px 0;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    margin-bottom: 12px;
    padding-left: 20px;
    position: relative;
}

.feature-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #007bff;
    font-weight: bold;
}

.product-image {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
}

.technical-advantages {
    margin-bottom: 30px;
}

.technical-advantages h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
    text-align: center;
}

.technical-advantages h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.advantage-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card h3,
.advantage-card p {
    text-align: center;
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.advantage-icon {
    margin-bottom: 20px;
}

.advantage-card h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.advantage-card p {
    color: #666;
    line-height: 1.6;
}

.technical-details {
    margin-bottom: 60px;
}

.technical-details h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
    text-align: center;
}

.technical-details h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.details-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.details-content-single {
    display: block;
    width: 100%;
}

.details-text-full {
    width: 100%;
    max-width: none;
}

.details-text h3 {
    font-size: 20px;
    color: #333;
    margin: 25px 0 15px 0;
}

/* 复合隔膜特性板块样式 */
.feature-section {
    margin-bottom: 40px;
}

.feature-section h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
}

.feature-section .feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 20px;
}

.feature-section .feature-item h4 {
    font-size: 1.2rem;
    color: #007bff;
    margin-bottom: 12px;
    font-weight: 600;
}

.feature-section .feature-item p {
    color: #666;
    line-height: 1.6;
    font-size: 14px;
}

.performance-section {
    margin-bottom: 40px;
}

.performance-section h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
}

.comparison-table {
    overflow-x: auto;
    margin-top: 20px;
}

.comparison-table table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.comparison-table th {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 15px;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
}

.comparison-table td {
    padding: 12px 15px;
    text-align: center;
    border-bottom: 1px solid #e9ecef;
    font-size: 14px;
}

.comparison-table tr:nth-child(even) {
    background-color: #f8f9fa;
}

.comparison-table tr:hover {
    background-color: #e3f2fd;
}

.comparison-table .improvement {
    color: #28a745;
    font-weight: 600;
}

.specifications-section {
    margin-bottom: 40px;
}

.specifications-section h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    margin-bottom: 30px;
    text-align: center;
    font-weight: 600;
}

.specifications-section .specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    margin-top: 20px;
}

.specifications-section .spec-category h4 {
    font-size: 1.2rem;
    color: #007bff;
    margin-bottom: 15px;
    font-weight: 600;
    text-align: left;
}

.specifications-section .spec-category ul {
    list-style: none;
    padding: 0;
}

.specifications-section .spec-category li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #666;
    font-size: 14px;
}

.specifications-section .spec-category li:last-child {
    border-bottom: none;
}

/* 系统构成样式 */
.system-components {
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.system-components h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 2rem;
    font-weight: 700;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 30px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
}

.component-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    text-align: center;
}

.component-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: #007bff;
}

.component-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

.component-card h3 {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

.component-card p {
    color: #6c757d;
    font-size: 14px;
    line-height: 1.6;
}

/* 技术参数样式 */
.technical-parameters {
    margin: 40px 0;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #e9ecef;
}

.technical-parameters h2 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 30px;
    font-size: 2rem;
    font-weight: 700;
}

.parameters-content {
    display: block;
    width: 100%;
}

.parameter-table-container {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 12px;
    border: 1px solid #dee2e6;
}

.parameter-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.parameter-table thead {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
}

.parameter-table th {
    padding: 15px 12px;
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.parameter-table td {
    padding: 12px;
    border-bottom: 1px solid #e9ecef;
    font-size: 14px;
}

.parameter-table tbody tr:hover {
    background: #f8f9fa;
}

.parameter-table td:first-child {
    background: #f8f9fa;
    font-weight: 600;
    color: #333;
    width: 35%;
}

.parameter-table td:nth-child(2) {
    color: #007bff;
    font-weight: 500;
    width: 35%;
}

.parameter-table td:last-child {
    color: #6c757d;
    font-size: 13px;
    width: 30%;
}

.process-flow {
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    border: 1px solid #dee2e6;
}

.process-flow h3 {
    color: #2c3e50;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    text-align: center;
}

.process-flow svg {
    max-width: 100%;
    height: auto;
    background: white;
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* 产品图片样式 */
.product-image {
    width: 100%;
    min-width: 400px;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-image:hover {
    transform: scale(1.02);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.service-image {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .components-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    

    
    .component-card {
        padding: 20px;
    }
    
    .technical-parameters {
        padding: 20px;
    }
    
    .parameter-table th,
    .parameter-table td {
        padding: 10px 8px;
        font-size: 13px;
    }
    
    .product-image {
        width: 100%;
    }
}

.details-image {
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f8f9fa;
    border-radius: 12px;
    padding: 20px;
}

.applications-section {
    margin-bottom: 60px;
}

.applications-section h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
    text-align: center;
}

.applications-section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.applications-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.application-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    text-align: center;
}

.application-item h3,
.application-item p {
    text-align: center;
}

.application-item:hover {
    transform: translateY(-3px);
}

.application-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 12px;
}

.application-item p {
    color: #666;
    line-height: 1.6;
}

.product-contact {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
}

.product-contact h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
}

.product-contact p {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

.contact-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-buttons .btn {
    min-width: 140px;
}

/* 技术规格现代化样式 */
.technical-specs {
    margin-bottom: 70px;
    padding: 50px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
}

.technical-specs h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 20px;
}

.technical-specs h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 0 30px;
}

/* 四列布局样式 */
.specs-grid-four-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    padding: 0 20px;
}

/* 技术特点图片展示样式 */
.feature-images {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 30px;
    padding: 20px 0;
}

.feature-image-container {
    text-align: center;
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.feature-image-container:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.feature-image {
    width: 100%;
    max-width: 400px;
    height: auto;
    border-radius: 8px;
    margin-bottom: 15px;
}

.feature-image.sem-image {
    max-width: 240px;
}

.image-caption {
    font-size: 14px;
    color: #666;
    font-weight: 500;
    margin: 0;
}

.spec-category {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border-top: 4px solid transparent;
}

.spec-category:nth-child(1) {
    border-top-color: #4caf50;
}

.spec-category:nth-child(2) {
    border-top-color: #2196f3;
}

.spec-category:nth-child(3) {
    border-top-color: #ff9800;
}

.spec-category::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border-radius: 0 16px 0 60px;
    transition: all 0.3s ease;
}

.spec-category:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
}

.spec-category:hover::before {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.15), rgba(118, 75, 162, 0.15));
}

.spec-category h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    text-align: center;
}

.spec-category h3::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    flex-shrink: 0;
}

.spec-category:nth-child(1) h3::before {
    background: linear-gradient(135deg, #4caf50, #45a049);
}

.spec-category:nth-child(2) h3::before {
    background: linear-gradient(135deg, #2196f3, #1976d2);
}

.spec-category:nth-child(3) h3::before {
    background: linear-gradient(135deg, #ff9800, #f57c00);
}

/* 系统功能特色现代化样式 */
.system-features {
    margin-bottom: 70px;
    padding: 50px 0;
}

.system-features h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 20px;
}

.system-features h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #e91e63, #ad1457);
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.features-grid-four-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 40px;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.feature-card h3,
.feature-card p {
    text-align: center;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 300% 100%;
    animation: gradientShift 3s ease infinite;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.feature-card p {
    color: #6c757d;
    line-height: 1.6;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* 测试能力现代化样式 */
.test-capabilities {
    margin-bottom: 70px;
    padding: 50px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 20px;
}

.test-capabilities h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 20px;
}

.test-capabilities h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #00bcd4, #0097a7);
    border-radius: 2px;
}

.capabilities-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 0 30px;
}

.capability-section {
    background: white;
    border-radius: 16px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border-left: 4px solid #00bcd4;
}

.capability-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.1), rgba(0, 151, 167, 0.1));
    border-radius: 0 16px 0 60px;
    transition: all 0.3s ease;
}

.capability-section:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.15);
    border-left-color: #0097a7;
}

.capability-section:hover::before {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.15), rgba(0, 151, 167, 0.15));
}

.capability-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
    text-align: center;
}

.capability-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.capability-section li {
    padding: 10px 0;
    border-bottom: 1px solid #f1f3f4;
    color: #6c757d;
    line-height: 1.6;
    position: relative;
    padding-left: 25px;
}

.capability-section li:last-child {
    border-bottom: none;
}

.capability-section li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: #00bcd4;
    font-size: 0.8rem;
    top: 50%;
    transform: translateY(-50%);
}

.capability-section li strong {
    color: #00bcd4;
    font-weight: 600;
}

/* 服务支持现代化样式 */
.service-support {
    margin-bottom: 70px;
    padding: 50px 0;
}

.service-support h2 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
    text-align: center;
}

.service-support h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.support-item {
    background: white;
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.support-item h3,
.support-item p {
    text-align: center;
}

.support-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, #9c27b0, #7b1fa2, #e91e63, #ad1457);
    background-size: 300% 100%;
    animation: gradientShift 3s ease infinite;
}

.support-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.support-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.support-item p {
    color: #6c757d;
    line-height: 1.6;
    font-size: 0.95rem;
    position: relative;
    z-index: 1;
}

/* 新的服务支持板块样式 */
.service-intro-text {
    text-align: center;
    margin-bottom: 50px;
    padding: 0 20px;
}

.service-intro-text p {
    font-size: 1.1rem;
    color: #6c757d;
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.support-categories {
    display: flex;
    flex-direction: column;
    gap: 50px;
    margin-bottom: 60px;
}

.support-category {
    background: white;
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.support-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f8f9fa;
}

.category-icon {
    flex-shrink: 0;
}

.category-header h3 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.support-items {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    margin-top: 20px;
}

.support-item {
    background: linear-gradient(135deg, #ffffff, #f8f9fa);
    border-radius: 20px;
    padding: 12px 20px 0px 20px;
    transition: all 0.3s ease;
    border: 2px solid #e3f2fd;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.support-item:hover {
    background: linear-gradient(135deg, #ffffff, #e3f2fd);
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(33, 150, 243, 0.2);
    border-color: #2196f3;
}

.support-item h4 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #1976d2;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.support-item h4 i {
    color: #2196f3;
    font-size: 1.4rem;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    padding: 8px;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.support-item p {
    color: #546e7a;
    line-height: 1.7;
    margin-bottom: 18px;
    font-size: 1.05rem;
    font-weight: 400;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.feature-tag {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
}

.service-commitment {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 20px;
    padding: 50px 40px;
    text-align: center;
}

.service-commitment h3 {
    font-size: 2rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
}

.service-commitment h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.commitment-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.commitment-item {
    background: white;
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.commitment-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

.commitment-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 1.5rem;
}

.commitment-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.commitment-item p {
    color: #6c757d;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 新的现代化服务支持样式 */
.modern-support-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.support-service-card {
    background: linear-gradient(145deg, #ffffff, #f8f9fa);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.support-service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2, #f093fb, #f5576c);
    background-size: 300% 100%;
    animation: gradientShift 4s ease infinite;
}

.support-service-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.15);
}

.service-card-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f1f3f4;
}

.service-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.service-icon.tech-service {
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.service-icon.maintenance-service {
    background: linear-gradient(135deg, #f093fb, #f5576c);
}

.service-icon.support-service {
    background: linear-gradient(135deg, #4facfe, #00f2fe);
}

.service-card-header h3 {
    font-size: 1.4rem;
    font-weight: 700;
    color: #2c3e50;
    margin: 0;
}

.service-items-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.service-item-modern {
    display: flex;
    gap: 15px;
    padding: 20px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: all 0.3s ease;
    height: 140px;
    align-items: flex-start;
}

.service-item-modern:hover {
    transform: translateX(5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: rgba(102, 126, 234, 0.2);
}

.item-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #1976d2;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.item-content {
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    height: 100px;
    padding-top: 0px;
}

.item-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0 0 0px 0;
    line-height: 1.3;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.item-content p {
    color: #6c757d;
    line-height: 1.4;
    margin: 0;
    font-size: 0.9rem;
    height: 65px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-align: left;
}

.feature-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.badge {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

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

/* 响应式设计 */
@media (max-width: 1024px) {
    .modern-support-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .support-service-card {
        padding: 25px;
    }
}

@media (max-width: 768px) {
    .support-categories {
        gap: 30px;
    }
    
    .support-category {
        padding: 30px 20px;
    }
    
    .category-header {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    
    .support-items {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .commitment-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .service-item-modern {
        flex-direction: column;
        text-align: center;
        gap: 12px;
        height: 160px;
    }
    
    .service-item-modern .item-content {
        height: 110px;
        padding-top: 2px;
        text-align: center;
    }
    
    .service-item-modern .item-content h4 {
        height: 20px;
        justify-content: center;
    }
    
    .service-item-modern .item-content p {
        height: 80px;
        text-align: center;
    }
    
    .item-icon {
        align-self: center;
    }
}

@media (max-width: 480px) {
    .commitment-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .service-commitment {
        padding: 40px 20px;
    }
    
    .service-intro-text p {
        font-size: 1rem;
    }
    
    .support-service-card {
        padding: 20px;
    }
    
    .service-card-header {
        flex-direction: column;
        text-align: center;
        gap: 12px;
    }
}

/* 产品联系部分现代化样式 */
.product-contact {
    margin-top: 80px;
    margin-bottom: 60px;
    padding: 50px 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.product-contact::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(180deg); }
}

.product-contact h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
    position: relative;
    z-index: 1;
}

.product-contact p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 1;
    line-height: 1.6;
    position: relative;
    z-index: 1;
    color: white;
    font-weight: 500;
}

.contact-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

.contact-buttons .btn {
    padding: 15px 30px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    min-width: 140px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.contact-buttons .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.contact-buttons .btn:hover::before {
    left: 100%;
}

.contact-buttons .btn-primary {
    background: white;
    color: #667eea;
    border: 2px solid white;
}

.contact-buttons .btn-primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.3);
}

.contact-buttons .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.contact-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.2);
}

/* 简化图标样式 */
.simple-icon {
    font-size: 24px;
    display: block;
    text-align: center;
    line-height: 1;
}

.category-icon-modern .simple-icon {
    font-size: 28px;
}

.feature-icon-modern .simple-icon {
    font-size: 20px;
}

.scenario-icon .simple-icon {
    font-size: 18px;
}

/* 数据库页面样式 */
.service-layout {
    max-width: 1200px;
    margin: 0 auto;
    padding: 40px 20px;
}

.service-overview {
    margin-bottom: 70px;
}

.service-header {
    text-align: center;
    margin-bottom: 50px;
}

.service-header h1 {
    font-size: 36px;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
    line-height: 1.2;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.service-subtitle {
    font-size: 20px;
    color: #7f8c8d;
    font-weight: 500;
    margin: 0;
}

/* 数据库服务特定样式 */
.database-categories,
.data-features,
.service-types,
.application-scenarios,
.access-methods {
    margin-bottom: 70px;
}

.database-categories h2,
.data-features h2,
.service-types h2,
.application-scenarios h2,
.access-methods h2 {
    font-size: 32px;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 50px;
    font-weight: 700;
    position: relative;
    padding-bottom: 20px;
}

.database-categories h2::after,
.data-features h2::after,
.service-types h2::after,
.application-scenarios h2::after,
.access-methods h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.service-overview {
    margin-bottom: 60px;
}

.service-header {
    text-align: center;
    margin-bottom: 40px;
}

.service-header h1 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.2;
}

.service-subtitle {
    font-size: 18px;
    color: #7f8c8d;
    font-weight: 500;
}

.service-intro {
    display: block;
    margin-bottom: 40px;
}

.service-intro .intro-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
    margin-bottom: 40px;
}

.service-intro .intro-content .service-image {
    text-align: center;
    margin: 60px 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-intro .intro-content .service-image img {
    max-width: 450px;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.service-features {
    margin-bottom: 60px;
    text-align: center;
}

.service-features .section-header {
    text-align: center !important;
}

.service-features .section-subtitle {
    text-align: center !important;
    margin: 0 auto;
    display: block;
}

.impact-categories {
    text-align: center;
}

.impact-categories .section-header {
    text-align: center !important;
}

.impact-categories .section-subtitle {
    text-align: center !important;
    margin: 0 auto;
    display: block;
}

.service-features h2 {
    font-size: 28px;
    color: #333;
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 15px;
    display: inline-block;
    width: 100%;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 15px;
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

.service-image {
    display: flex;
    justify-content: center;
    align-items: center;
    background: none;
    border-radius: 12px;
    padding: 20px;
}

.service-process {
    margin-bottom: 60px;
}

.service-process h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    padding-bottom: 15px;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
}

.process-step {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.process-step:hover {
    transform: translateY(-3px);
}

.step-number {
    width: 40px;
    height: 40px;
    background: #007bff;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin: 0 auto 15px;
}

.process-step h3 {
    font-size: 16px;
    color: #333;
    margin-bottom: 10px;
}

.process-step p {
    color: #666;
    font-size: 14px;
    line-height: 1.5;
}

.service-deliverables {
    margin-bottom: 60px;
}

.service-deliverables h2 {
    font-size: 28px;
    color: #333;
    margin-bottom: 30px;
    border-bottom: 3px solid #007bff;
    padding-bottom: 15px;
}

.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.deliverable-item {
    background: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 3px 12px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.deliverable-item:hover {
    transform: translateY(-3px);
}

.deliverable-item h3 {
    font-size: 18px;
    color: #333;
    margin-bottom: 12px;
}

.deliverable-item p {
    color: #666;
    line-height: 1.6;
}

/* 全局小标题居中样式 */
h2, h3, h4 {
    text-align: center;
}

/* TEA页面专用样式 */
.analysis-framework {
    margin-bottom: 60px;
    padding: 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
}

.analysis-framework h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
}

.analysis-framework h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.framework-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    padding: 0 20px;
}

.framework-item {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #e9ecef;
    position: relative;
    overflow: hidden;
}

.framework-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.framework-item:hover::before {
    left: 100%;
}

.framework-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.framework-icon {
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

.framework-item:hover .framework-icon {
    transform: scale(1.1);
}

.framework-item h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.framework-item p {
    color: #6c757d;
    line-height: 1.6;
    font-size: 0.95rem;
}

/* 关键指标样式 */
.key-indicators {
    margin-bottom: 60px;
    padding: 40px 0;
}

.key-indicators h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
}

.key-indicators h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #ff9800, #f57c00);
    border-radius: 2px;
}

.indicators-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.indicator-card {
    background: white;
    padding: 18px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #ff9800;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    height: 160px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.indicator-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #ff9800, #f57c00);
    opacity: 0.1;
    border-radius: 0 12px 0 60px;
    transition: all 0.3s ease;
}

.indicator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(255, 152, 0, 0.2);
    border-left-color: #f57c00;
}

.indicator-card:hover::before {
    width: 80px;
    height: 80px;
    opacity: 0.15;
}

.indicator-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.indicator-card p {
    color: #6c757d;
    line-height: 1.5;
    margin-bottom: 0;
    font-size: 0.95rem;
    flex-grow: 1;
}

.indicator-formula {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    padding: 12px 15px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: #495057;
    border: 1px solid #dee2e6;
    text-align: center;
    font-weight: 500;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: 0;
    flex-shrink: 0;
}

/* 时间线样式 */
.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 0;
}

.process-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(180deg, #667eea, #764ba2);
    transform: translateX(-50%);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
}

.timeline-item:nth-child(odd) {
    flex-direction: row;
}

.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}

.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    z-index: 2;
}

.timeline-content {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
    width: calc(50% - 30px);
    position: relative;
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-left: auto;
    margin-right: 30px;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-right: auto;
    margin-left: 30px;
}

.timeline-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    border-color: #667eea;
}

.timeline-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 10px;
}

.timeline-content p {
    color: #6c757d;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

/* 应用领域样式 */
.application-areas {
    margin-bottom: 60px;
    padding: 40px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 16px;
    text-align: center;
}

.application-areas .section-header {
    text-align: center !important;
}

.application-areas .section-subtitle {
    text-align: center !important;
    margin: 0 auto;
    display: block;
}

.application-areas h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
}

.application-areas h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #4caf50, #45a049);
    border-radius: 2px;
}

.application-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

/* 四列布局样式 */
.application-grid-4-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 40px;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .application-grid-4-columns {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 900px) {
    .application-grid-4-columns {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .application-grid-4-columns {
        grid-template-columns: 1fr;
    }
}

.application-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #4caf50;
    transition: all 0.3s ease;
    text-align: left;
}

.application-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(76, 175, 80, 0.2);
}

.application-card .application-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.application-card h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

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

.application-card li {
    padding: 8px 0;
    border-bottom: 1px solid #f1f3f4;
    color: #6c757d;
    line-height: 1.6;
    position: relative;
    padding-left: 20px;
}

.application-card li:before {
    content: '•';
    color: #4caf50;
    font-weight: bold;
    position: absolute;
    left: 0;
}

.application-card li:last-child {
    border-bottom: none;
}

/* 相关产品样式 */
.related-products {
    margin-bottom: 60px;
    padding: 40px 0;
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
    border-radius: 16px;
}

.related-products h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    text-align: center;
    position: relative;
}

.related-products h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.related-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.related-product-card {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #007bff;
    transition: all 0.3s ease;
    text-align: left;
}

.related-product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(0, 123, 255, 0.2);
}

.related-product-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.related-product-card p {
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 20px;
}

.related-product-card .product-link {
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.related-product-card .product-link:hover {
    color: #0056b3;
    text-decoration: underline;
}

.areas-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    padding: 0 20px;
}

.area-section {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #4caf50;
    transition: all 0.3s ease;
}

.area-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(76, 175, 80, 0.2);
}

.area-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: left;
}

.area-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.area-section li {
    padding: 8px 0;
    border-bottom: 1px solid #f1f3f4;
    color: #6c757d;
    line-height: 1.6;
}

.area-section li:last-child {
    border-bottom: none;
}

.area-section li strong {
    color: #4caf50;
    font-weight: 600;
}

/* 交付成果样式 */
.deliverables {
    margin-bottom: 60px;
    padding: 40px 0;
}

.deliverables h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 40px;
    position: relative;
}

.deliverables h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #9c27b0, #7b1fa2);
    border-radius: 2px;
}

.deliverables-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.deliverable-item {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #9c27b0;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.deliverable-item::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #9c27b0, #7b1fa2);
    opacity: 0.1;
    border-radius: 0 12px 0 60px;
    transition: all 0.3s ease;
}

.deliverable-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 30px rgba(156, 39, 176, 0.2);
    border-left-color: #7b1fa2;
}

.deliverable-item:hover::before {
    width: 80px;
    height: 80px;
    opacity: 0.15;
}

.deliverable-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.deliverable-item p {
    color: #6c757d;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

/* 服务联系样式 */
.service-contact {
    margin-bottom: 60px;
    padding: 40px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px;
    text-align: center;
    color: white;
}

.service-contact h2 {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 20px;
    color: white;
}

.service-contact p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    opacity: 0.9;
    line-height: 1.6;
}

.contact-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-buttons .btn {
    padding: 15px 30px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    min-width: 140px;
    transition: all 0.3s ease;
}

.contact-buttons .btn-primary {
    background: white;
    color: #667eea;
    border: 2px solid white;
}

.contact-buttons .btn-primary:hover {
    background: transparent;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.3);
}

.contact-buttons .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.contact-buttons .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: white;
    transform: translateY(-2px);
}

/* Modern Section Header */
.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2c3e50;
    margin-bottom: 15px;
    position: relative;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #7f8c8d;
    margin: 0;
    font-weight: 400;
    text-align: center !important; /* 强制居中 */
}

/* Modern Features Grid */
.features-grid-modern {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 0px;
}

.feature-card-modern {
    background: white;
    border-radius: 16px;
    padding: 15px 12px 50px 12px;
    text-align: center;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.04);
    min-height: 160px;
}

.feature-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-card-modern:hover {
    transform: translateY(-12px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.12);
}

.feature-icon-modern {
    margin-bottom: 28px;
}

.icon-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 1.5rem;
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.12);
}

.icon-circle::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    opacity: 0.1;
    border-radius: 50%;
}

/* 数据特色图标样式 */
.accuracy-icon {
    background: linear-gradient(135deg, #4CAF50, #45a049);
}

.timeliness-icon {
    background: linear-gradient(135deg, #2196F3, #1976D2);
}

.completeness-icon {
    background: linear-gradient(135deg, #FF9800, #F57C00);
}

.standardization-icon {
    background: linear-gradient(135deg, #9C27B0, #7B1FA2);
}

.traceability-icon {
    background: linear-gradient(135deg, #607D8B, #455A64);
}

.customization-icon {
    background: linear-gradient(135deg, #E91E63, #C2185B);
}

.feature-content h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 15px;
}

.feature-content p {
    color: #7f8c8d;
    line-height: 1.6;
    margin-bottom: 20px;
}

.feature-badge {
    display: inline-block;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    position: absolute;
    bottom: 25px;
    left: 50%;
    transform: translateX(-50%);
}

/* Modern Categories Grid */
.categories-grid-modern {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin: 50px 0;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

.category-card-modern {
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.category-card-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.category-card-modern:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12);
}

.category-icon {
    margin-bottom: -10px;
}

.category-icon-modern {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.icon-wrapper-gradient {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.materials-gradient {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.process-gradient {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.cost-gradient {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.equipment-gradient {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.category-content-modern {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 100%;
}

.category-content-modern h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 12px;
    font-weight: 600;
    text-align: center;
}

.category-description {
    color: #7f8c8d;
    margin-bottom: 16px;
    line-height: 1.6;
    text-align: center;
}

.category-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
    justify-content: center;
}

.feature-tag {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #495057;
    padding: 6px 12px;
    border-radius: 16px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.feature-tag:hover {
    background: linear-gradient(135deg, #e9ecef, #dee2e6);
    transform: translateY(-1px);
}

.icon-bg {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px auto;
    font-size: 2rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    position: relative;
    overflow: hidden;
}

.icon-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: inherit;
    opacity: 0.1;
    border-radius: 50%;
}

/* Category Card Styles for LCA Assessment Indicators */
.category-card {
    background: white;
    border-radius: 20px;
    padding: 30px 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.06);
    text-align: center;
    position: relative;
    overflow: hidden;
    height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.category-content {
    text-align: center;
}

.category-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 10px 0 8px 0;
}

.category-content p {
    font-size: 0.95rem;
    color: #7f8c8d;
    margin-bottom: 12px;
    line-height: 1.4;
    flex-grow: 1;
}

.category-unit {
    font-size: 0.9rem;
    color: #667eea;
    font-weight: 600;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    padding: 8px 16px;
    border-radius: 20px;
    display: inline-block;
    border: 1px solid rgba(102, 126, 234, 0.2);
    margin-top: auto;
}

/* Core Technical Advantages */
.core-advantages {
    margin: 60px 0;
    padding: 0 20px;
}

.core-advantages h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 50px;
    font-weight: 700;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 40px 0;
}

.advantage-card {
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.advantage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.advantage-card h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.advantage-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95em;
}

/* System Features */
.system-features {
    margin: 60px 0;
    padding: 0 20px;
}

.system-features h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 50px;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 40px 0;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.feature-card h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95em;
}

/* Application Scenarios */
.application-scenarios {
    margin: 60px 0;
    padding: 0 20px;
}

.application-scenarios h2 {
    text-align: center;
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 50px;
    font-weight: 700;
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin: 40px 0;
}

.scenario-card {
    background: white;
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.scenario-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.scenario-icon {
    font-size: 3rem;
    margin-bottom: 20px;
    display: block;
}

.scenario-card h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.scenario-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin: 0;
    font-size: 0.95em;
}

/* Responsive Design for New Sections */
@media (max-width: 1200px) {
    .advantages-grid,
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .advantages-grid,
    .scenarios-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 15px;
    }
    
    .advantage-card,
    .scenario-card {
        padding: 25px 20px;
    }
    
    .feature-card {
        padding: 15px 10px;
    }
    
    .feature-card h3 {
        font-size: 1.1em;
        margin-bottom: 10px;
    }
    
    .feature-card p {
        font-size: 0.85em;
        line-height: 1.4;
    }
    
    .feature-icon {
        font-size: 2.2rem;
        margin-bottom: 15px;
    }
    
    .core-advantages h2,
    .system-features h2,
    .application-scenarios h2 {
        font-size: 2rem;
        margin-bottom: 30px;
    }
}

/* Application Scenarios Modern */
.scenarios-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.scenario-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.scenario-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.scenario-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.scenario-card .icon-bg {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.research-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.selection-bg {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.evaluation-bg {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.supplier-bg {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.competition-bg {
    background: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
}

.standard-bg {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
}

.scenario-card h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 12px;
    font-weight: 600;
}

.scenario-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin: 0;
}

/* Access Methods Modern */
.methods-grid-modern {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin: 50px 0;
}

.method-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0, 0, 0, 0.04);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.method-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.method-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.12);
}

.method-icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.method-card .icon-bg {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.online-bg {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.api-bg {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.report-bg {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.consulting-bg {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.method-card h3 {
    font-size: 1.3em;
    color: #2c3e50;
    margin-bottom: 12px;
    font-weight: 600;
}

.method-card p {
    color: #7f8c8d;
    line-height: 1.6;
    margin: 0;
}

/* Modern Areas Grid */
.areas-grid-modern {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.area-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.area-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.area-header {
    padding: 30px 25px 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa, #ffffff);
    border-bottom: 1px solid #f0f0f0;
}

.area-icon {
    margin-bottom: 15px;
}

.icon-wrapper {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 1.8rem;
    color: white;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.area-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
}

.area-content {
    padding: 25px;
}

.area-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 12px;
    transition: all 0.3s ease;
    height: 90px;
    box-sizing: border-box;
    min-height: 100px;
}

.area-item:hover {
    background: #e9ecef;
    transform: translateX(5px);
}

.area-item:last-child {
    margin-bottom: 0;
}

.item-icon {
    font-size: 1.2rem;
    margin-right: 15px;
    margin-top: 2px;
    flex-shrink: 0;
}

.item-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

.item-content strong {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 5px;
    line-height: 1.2;
}

.item-content p {
    font-size: 0.9rem;
    color: #7f8c8d;
    margin: 0;
    line-height: 1.5;
}

.service-contact {
    background: #f8f9fa;
    padding: 40px;
    border-radius: 12px;
    text-align: center;
}

.service-contact h2 {
    font-size: 24px;
    color: #333;
    margin-bottom: 15px;
}

.service-contact p {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

/* 顶部通栏 */
.top-bar {
    background: #adb5bd;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: 16px 0;
    color: white;
    box-shadow: 0 2px 8px rgba(173, 181, 189, 0.2);
}

.top-bar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    text-align: center;
}

.logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin-bottom: 2px;
}

.logo h1 sup {
    font-size: 14px;
    font-weight: 400;
}

.logo .tagline {
    font-size: 27px;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 400;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.9);
    transition: all 0.3s ease;
    margin-bottom: 16px;
    line-height: 1.2;
}

.contact-item:last-child {
    margin-bottom: 0px;
}

.contact-item:hover {
    color: white;
    transform: translateY(-1px);
}

.contact-icon {
    width: 18px;
    height: 18px;
    object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.contact-item i {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    width: 18px;
    text-align: center;
}

.contact-item a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
}

.contact-item a:hover {
    color: white;
}

.contact-item span {
    font-weight: 500;
    letter-spacing: 0.3px;
}

.language-switch .lang-btn {
    padding: 8px 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 12px;
    transition: all 0.3s ease;
}

.language-switch .lang-btn:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

/* 语言切换下拉菜单样式 */
.language-switch {
    position: relative;
    display: inline-block;
}

.language-menu {
    display: none;
    position: absolute;
    right: 0;
    top: 100%;
    background-color: white;
    min-width: 180px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    z-index: 1001;
    border-radius: 4px;
    padding: 8px 0;
    list-style: none;
    margin-top: 5px;
    border: 1px solid #e9ecef;
}

.language-switch:hover .language-menu,
.language-switch.active .language-menu {
    display: block;
    animation: fadeIn 0.2s ease-in-out;
}

.language-menu li {
    display: block;
}

.language-menu li a {
    color: #333;
    padding: 10px 20px;
    text-decoration: none;
    display: block;
    font-size: 14px;
    transition: background-color 0.2s;
    text-align: left;
}

.language-menu li a:hover {
    background-color: #f8f9fa;
    color: #667eea;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 主导航栏 */
.main-nav {
    background: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 20px;
    max-width: 1200px;
    margin: 0 auto;
}

/* Logo样式 */
.logo {
    flex-shrink: 0;
}

.logo a {
    font-size: 28px;
    font-weight: 700;
    color: #007bff;
    text-decoration: none;
    letter-spacing: -0.5px;
    transition: all 0.3s ease;
}

.logo a:hover {
    color: #0056b3;
    transform: scale(1.05);
}

/* 导航菜单居中 */
.nav-menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    justify-content: center;
    flex: 1;
}

.nav-item {
    position: relative;
}

.nav-item > a {
    display: block;
    padding: 20px 25px;
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 6px;
    margin: 0 5px;
}

.nav-item:hover > a,
.nav-item.active > a {
    color: #007bff;
    background: rgba(0, 123, 255, 0.08);
    transform: translateY(-1px);
}

.dropdown-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
}

.dropdown-toggle i {
    font-size: 12px;
    transition: transform 0.3s ease;
}

.nav-item:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

/* 移动端菜单按钮 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 10px;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
    border-radius: 2px;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: white;
    min-width: 280px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    border-radius: 12px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    list-style: none;
    padding: 15px 0;
    border: 1px solid rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(10px);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown-menu li {
    margin: 0 10px;
}

.dropdown-menu li a {
    display: block;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: all 0.3s ease;
    border-radius: 8px;
    font-weight: 400;
    position: relative;
    overflow: hidden;
}

.dropdown-menu li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 123, 255, 0.1), transparent);
    transition: left 0.5s ease;
}

.dropdown-menu li a:hover {
    background: rgba(0, 123, 255, 0.08);
    color: #007bff;
    transform: translateX(5px);
}

.dropdown-menu li a:hover::before {
    left: 100%;
}

/* 页面主体内容 - 为固定导航栏留出空间 */
body {
    padding-top: 80px; /* 导航栏高度 */
}

/* 英雄区域 */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 100px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 20px;
    opacity: 0.9;
}

.hero-description {
    font-size: 18px;
    max-width: 800px;
    margin: 0 auto 40px;
    opacity: 0.8;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    align-items: center;
}

/* 业务展示区 */
.business-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.business-card {
    background: white;
    padding: 40px 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.business-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.business-card:hover::before {
    transform: scaleX(1);
}

.business-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.business-icon {
    position: relative;
    width: 80px;
    height: 80px;
    margin: 0 auto 30px;
}

.business-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity 0.3s ease;
}

.business-icon .icon-hover {
    opacity: 0;
}

.business-card:hover .business-icon .icon-default {
    opacity: 0;
}

.business-card:hover .business-icon .icon-hover {
    opacity: 1;
}

.business-title {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
}

.business-description {
    font-size: 16px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 25px;
}

.business-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

/* 业务板块样式 */
.business-section-block {
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    margin-bottom: 40px;
    overflow: hidden;
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.business-section-block:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.block-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px 30px;
    text-align: center;
    position: relative;
}

.block-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    position: relative;
    transition: transform 0.3s ease;
}

.block-icon:hover {
    transform: scale(1.1) rotate(5deg);
}

.block-title {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 15px 0;
    line-height: 1.2;
}

.block-description {
    font-size: 16px;
    opacity: 0.9;
    margin: 0;
    line-height: 1.5;
}

.products-slider {
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.products-container {
    display: flex;
    gap: 25px;
    transition: transform 0.5s ease;
    width: 100%;
}

.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
}

.slider-controls.prev {
    left: 10px;
}

.slider-controls.next {
    right: 10px;
}

.slider-btn {
    background: rgba(102, 126, 234, 0.9);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.slider-btn:hover {
    background: rgba(102, 126, 234, 1);
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.slider-btn:disabled {
    background: rgba(0, 0, 0, 0.3);
    cursor: not-allowed;
    transform: none;
}

.slider-btn:disabled:hover {
    transform: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.product-item {
    flex: 0 0 calc(25% - 18.75px);
    min-width: calc(25% - 18.75px);
    background: white;
    border-radius: 15px;
    padding: 20px 15px;
    text-align: center;
    transition: all 0.4s ease;
    border: 2px solid #f0f0f0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.08);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.product-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.product-item:hover::before {
    transform: scaleX(1);
}

.product-item:hover {
    transform: translateY(-12px);
    background: #fff;
    border-color: rgba(102, 126, 234, 0.3);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
}

.product-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: block;
    transition: transform 0.3s ease;
}

.product-item:hover .product-icon {
    transform: scale(1.2) rotate(10deg);
}

.product-image {
    width: 100%;
    height: 200px;
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.4s ease;
    border-radius: 12px;
    overflow: hidden;
    background: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    position: relative;
    padding: 0;
}

.product-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    transition: all 0.4s ease;
    z-index: 2;
    position: relative;
}

.product-item:hover .product-image {
    transform: translateY(-8px) scale(1.05);
    box-shadow: 0 12px 30px rgba(102, 126, 234, 0.2);
}

.product-item:hover .product-image::before {
    opacity: 1;
}

.product-item:hover .product-image img {
    transform: scale(1.1);
}

.product-item h4 {
    font-size: 20px;
    font-weight: 700;
    color: #333;
    margin: 0 0 10px 0;
    line-height: 1.3;
    transition: color 0.3s ease;
}

.product-item:hover h4 {
    color: #667eea;
}

.product-title-link {
    color: #333 !important;
    text-decoration: none !important;
    transition: none;
}

.product-title-link:hover {
    color: #333 !important;
    text-decoration: none !important;
}

.product-title-link:visited {
    color: #333 !important;
    text-decoration: none !important;
}

.product-title-link:active {
    color: #333 !important;
    text-decoration: none !important;
}

.product-item p {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    margin: 0 0 15px 0;
    transition: color 0.3s ease;
}

.product-item:hover p {
    color: #555;
}

.product-link {
    display: inline-flex;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}

.product-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    color: white;
}

.block-footer {
    background: #fafafa;
    padding: 25px 30px;
    text-align: center;
    border-top: 1px solid #f0f0f0;
}

.view-all-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 15px 30px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

.view-all-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.4);
    text-decoration: none;
    color: white;
}

.view-all-btn i {
    transition: transform 0.3s ease;
}

.view-all-btn:hover i {
    transform: translateX(5px);
}

/* Enhanced Business Cards Styles */
.business-grid-enhanced {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.business-card-enhanced {
    background: white;
    border-radius: 16px;
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    overflow: hidden;
    border: 1px solid #e9ecef;
}

.business-card-enhanced:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    border-color: #007bff;
}

.business-header {
    padding: 30px 30px 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 1px solid #dee2e6;
}

.business-header .business-icon {
    position: relative;
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
}

.business-header .business-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    transition: opacity 0.3s ease;
}

.business-header .business-icon .icon-hover {
    opacity: 0;
}

.business-card-enhanced:hover .business-header .business-icon .icon-default {
    opacity: 0;
}

.business-card-enhanced:hover .business-header .business-icon .icon-hover {
    opacity: 1;
}

.business-header .business-title {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.business-content {
    padding: 25px 30px;
}

.business-content .business-description {
    font-size: 15px;
    color: #666;
    line-height: 1.6;
    margin-bottom: 25px;
    text-align: center;
}

.product-categories {
    display: grid;
    gap: 20px;
}

.category-item {
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    border-left: 4px solid #007bff;
    transition: all 0.3s ease;
}

.category-item:hover {
    background: #e3f2fd;
    border-left-color: #0056b3;
    transform: translateX(5px);
}

.category-item h4 {
    font-size: 16px;
    font-weight: 600;
    color: #333;
    margin: 0 0 8px 0;
}

.category-item p {
    font-size: 14px;
    color: #666;
    line-height: 1.5;
    margin: 0;
}

.business-footer {
    padding: 20px 30px 30px;
    text-align: center;
    background: #f8f9fa;
    border-top: 1px solid #dee2e6;
}

.business-link-enhanced {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: #007bff;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    padding: 12px 24px;
    border: 2px solid #007bff;
    border-radius: 8px;
    transition: all 0.3s ease;
    background: white;
}

.business-link-enhanced:hover {
    background: #007bff;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

.business-link-enhanced i {
    transition: transform 0.3s ease;
}

.business-link-enhanced:hover i {
    transform: translateX(3px);
}

.business-link:hover {
    color: #0056b3;
    gap: 12px;
}

/* 信息区域 */
.info-section {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.info-grid {
    display: flex;
    justify-content: center;
    align-items: stretch;
    gap: 50px;
    max-width: 900px;
    margin: 0 auto;
}

.info-card {
    flex: 1;
    max-width: 400px;
    padding: 40px 30px;
    border: 1px solid #e9ecef;
    border-radius: 12px;
    transition: all 0.3s ease;
    background: white;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.info-card:hover {
    border-color: #007bff;
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.15);
    transform: translateY(-5px);
}

.info-card h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 25px;
    padding-bottom: 15px;
    position: relative;
}

.info-card h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-radius: 2px;
}

.contact-details {
    text-align: left;
    display: inline-block;
    margin: 0 auto;
}

.contact-details p {
    margin-bottom: 15px;
    font-size: 15px;
    line-height: 1.6;
}

.contact-details strong {
    color: #007bff;
    font-weight: 600;
}

.contact-details a {
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
}

.contact-details a:hover {
    text-decoration: underline;
    color: #0056b3;
}

/* 在线咨询卡片样式 */
.info-card p {
    font-size: 16px;
    color: #666;
    margin-bottom: 25px;
    line-height: 1.6;
}

.info-card .btn {
    margin-top: 10px;
    padding: 15px 30px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    min-width: 150px;
}

.business-links {
    list-style: none;
}

.business-links li {
    margin-bottom: 10px;
}

.business-links a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.business-links a:hover {
    color: #007bff;
}

/* 底部 */
.footer {
    background: #343a40;
    color: white;
    padding: 40px 0;
}

.footer-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, #6c757d, transparent);
    margin-bottom: 30px;
}

.footer-content {
    text-align: center;
}

.company-motto {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    opacity: 0.9;
}

.copyright {
    font-size: 14px;
    opacity: 0.7;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(5px);
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 1px solid #e9ecef;
}

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
}

.close {
    font-size: 28px;
    font-weight: bold;
    color: #aaa;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #333;
}

.modal-body {
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-actions {
    display: flex;
    gap: 15px;
    justify-content: flex-end;
    margin-top: 30px;
}

.hidden {
    display: none !important;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #c1c1c1;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a8a8a8;
}

/* 联系页面样式 */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-top: 40px;
}

.contact-form-section {
    background: white;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.form-container {
    padding: 40px;
}

.form-container h2 {
    font-size: 28px;
    font-weight: 700;
    color: #333;
    margin-bottom: 8px;
    text-align: center;
}

.form-container p {
    color: #666;
    text-align: center;
    margin-bottom: 30px;
    font-size: 16px;
}

.contact-form .form-group {
    margin-bottom: 24px;
}

.contact-form .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.contact-form .form-group input,
.contact-form .form-group textarea,
.contact-form .form-group select {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s ease;
    background: #fafbfc;
}

.contact-form .form-group input:focus,
.contact-form .form-group textarea:focus,
.contact-form .form-group select:focus {
    outline: none;
    border-color: #007bff;
    background: white;
    box-shadow: 0 0 0 4px rgba(0, 123, 255, 0.1);
}

.contact-form .form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form .btn-large {
    width: 100%;
    padding: 16px 24px;
    font-size: 16px;
    font-weight: 600;
    border-radius: 8px;
    background: linear-gradient(135deg, #007bff, #0056b3);
    border: none;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.contact-form .btn-large:hover {
    background: linear-gradient(135deg, #0056b3, #004085);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 123, 255, 0.3);
}

.contact-info-section {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-cards {
    display: grid;
    gap: 20px;
}

.contact-card {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.contact-card .card-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-card .card-icon .contact-icon {
    font-size: 30px;
    color: #667eea;
    transition: all 0.3s ease;
}

.contact-card:hover .card-icon .contact-icon {
    color: #764ba2;
    transform: scale(1.1);
}

.contact-card .contact-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    transition: all 0.3s ease;
}

.contact-card .contact-icon i {
    font-size: 48px;
    color: #0A66C2;
    transition: all 0.3s ease;
}

.contact-card:hover .contact-icon i {
    transform: scale(1.1);
    color: #004182;
}

.contact-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: #333;
    margin-bottom: 8px;
}

.contact-card p {
    color: #666;
    margin-bottom: 16px;
    font-size: 15px;
}

.contact-card .contact-link {
    display: inline-block;
    padding: 10px 20px;
    background: #f8f9fa;
    color: #007bff;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.contact-card .contact-link:hover {
    background: #007bff;
    color: white;
    transform: translateY(-1px);
}

.business-hours {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
}

.business-hours h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.hours-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.hours-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f0f0f0;
}

.hours-item:last-child {
    border-bottom: none;
}

.hours-item .day {
    font-weight: 500;
    color: #333;
}

.hours-item .time {
    color: #666;
    font-weight: 400;
}

.hours-note {
    color: #666;
    font-size: 14px;
    text-align: center;
    font-style: italic;
}

.quick-links {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
}

.quick-links h3 {
    font-size: 22px;
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

.links-list {
    list-style: none;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.links-list li a {
    display: block;
    padding: 12px 16px;
    background: #f8f9fa;
    color: #333;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.links-list li a:hover {
    background: #007bff;
    color: white;
    transform: translateX(4px);
}

.faq-section {
    margin-top: 60px;
    padding: 40px 0;
}

.faq-section h2 {
    font-size: 32px;
    font-weight: 700;
    color: #333;
    text-align: center;
    margin-bottom: 40px;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.faq-item {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    border: 1px solid #f0f0f0;
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.faq-item h3 {
    font-size: 18px;
    font-weight: 600;
    color: #333;
    margin-bottom: 12px;
    line-height: 1.4;
}

.faq-item p {
    color: #666;
    line-height: 1.6;
    font-size: 15px;
}

.form-message {
    margin-top: 20px;
    padding: 15px;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
}

.success-message {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error-message {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 服务客户板块样式 */
.service-clients {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 80px 0;
    margin: 60px 0;
    border-radius: 20px;
    position: relative;
    overflow: hidden;
}

.service-clients::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea, #764ba2);
}

.clients-description {
    text-align: center;
    margin: 40px 0 50px 0;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.clients-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #495057;
    font-weight: 400;
}

.university-logos {
    text-align: center;
    margin: 50px 0;
    padding: 30px;
    background: white;
    border-radius: 15px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.logos-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    align-items: center;
    justify-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: all 0.3s ease;
}

.logo-container:hover {
    transform: translateY(-5px);
}

.logo-item {
    width: 100px;
    height: 100px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
    transition: all 0.3s ease;
    border-radius: 15px;
    background: white;
    padding: 12px;
    margin-bottom: 20px;
}

.logo-item:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.15));
}

.logo-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #2c3e50;
    margin: 0;
    line-height: 1.4;
    text-align: center;
}

.published-papers {
    margin-top: 60px;
}

.published-papers h3 {
    font-size: 1.8rem;
    color: #2c3e50;
    text-align: center;
    margin-bottom: 40px;
    font-weight: 600;
    position: relative;
}

.published-papers h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 2px;
}

.papers-list {
    max-width: 1000px;
    margin: 0 auto;
}

.paper-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 25px;
    padding: 25px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    border-left: 4px solid #667eea;
}

.paper-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.paper-number {
    font-size: 1.2rem;
    font-weight: 700;
    color: #667eea;
    margin-right: 20px;
    min-width: 25px;
    flex-shrink: 0;
}

.paper-content {
    flex: 1;
}

.paper-content p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #495057;
    margin: 0;
}

.paper-content em {
    font-style: italic;
    color: #6c757d;
    font-weight: 500;
}

.paper-link {
    color: #007bff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.paper-link:hover {
    color: #0056b3;
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .service-clients {
        padding: 50px 0;
        margin: 40px 0;
    }
    
    .clients-description p {
        font-size: 1rem;
    }
    
    .university-logos {
        padding: 20px;
    }
    
    .logos-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        max-width: 600px;
    }
    
    .logo-item {
        width: 80px;
        height: 80px;
        padding: 8px;
    }
    
    .logo-name {
        font-size: 0.8rem;
    }
    
    .paper-item {
        flex-direction: column;
        padding: 20px;
    }
    
    .paper-number {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .paper-content p {
        font-size: 0.9rem;
    }
}

/* 现代化技术参数样式 */
.params-grid-modern {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    margin-top: 30px;
}

.param-category-modern {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.param-category-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px 16px 0 0;
}

.param-category-modern:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.category-header-modern {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.category-icon-modern {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 20px;
    color: white;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.category-icon-modern.basic-config {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.category-icon-modern.electrical {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

.category-icon-modern.operation {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
}

.category-icon-modern.control-product {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
}

.category-header-modern h4 {
    margin: 0;
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    letter-spacing: 0.5px;
}

.param-cards {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.param-card {
    display: flex;
    align-items: flex-start;
    padding: 18px;
    background: rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
}

.param-card:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateX(5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.param-icon-small {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    flex-shrink: 0;
    color: white;
    font-size: 16px;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}

.param-details {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.param-name {
    font-size: 1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 5px;
    letter-spacing: 0.3px;
}

.param-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 5px;
    letter-spacing: 0.5px;
}

.param-note {
    font-size: 0.85rem;
    color: #7f8c8d;
    font-style: italic;
    line-height: 1.4;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .params-grid-modern {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .params-grid-modern {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .param-category-modern {
        padding: 20px;
    }
    
    .category-header-modern h4 {
        font-size: 1.1rem;
    }
    
    .param-card {
        padding: 15px;
    }
    
    .param-name {
        font-size: 0.9rem;
    }
    
    .param-value {
        font-size: 1rem;
    }
    
    .param-note {
        font-size: 0.8rem;
    }
}

/* 技术参数两列布局样式 */
.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 30px;
}

.details-column {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.parameter-section {
    background: #fff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.08);
    border-left: 4px solid #007bff;
}

.parameter-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.parameter-table {
    width: 100%;
    border-collapse: collapse;
}

.parameter-table tr {
    border-bottom: 1px solid #e9ecef;
}

.parameter-table tr:last-child {
    border-bottom: none;
}

.parameter-table td {
    padding: 12px 0;
    font-size: 0.95rem;
    line-height: 1.5;
}

.parameter-table td:first-child {
    font-weight: 600;
    color: #495057;
    width: 40%;
}

.parameter-table td:last-child {
    color: #6c757d;
    width: 60%;
}

@media (max-width: 1024px) {
    .details-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
}

@media (max-width: 768px) {
    .details-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .parameter-section {
        padding: 20px;
    }
}

/* 2行3列布局样式 */
.tech-features-2x3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 30px;
    margin-top: 30px;
}

.tech-params-2x3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: 25px;
    margin-top: 30px;
}

/* 2行3列布局响应式设计 */
@media (max-width: 1200px) {
    .tech-features-2x3,
    .tech-params-2x3 {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .tech-features-2x3,
    .tech-params-2x3 {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
        gap: 20px;
    }
}

/* 一行四列布局样式 - 阴离子交换膜核心技术优势 */
.advantages-grid-four-columns {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.advantages-grid-four-columns .advantage-card {
    background: white;
    border-radius: 15px;
    padding: 2rem 1.5rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.advantages-grid-four-columns .advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.advantages-grid-four-columns .advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #007bff, #0056b3);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.advantages-grid-four-columns .advantage-card:hover::before {
    transform: scaleX(1);
}

.advantages-grid-four-columns .advantage-icon {
    margin: 0 auto 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.advantages-grid-four-columns .advantage-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.advantages-grid-four-columns .advantage-card p {
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.5;
    margin: 0;
}

/* 四列布局响应式设计 */
@media (max-width: 1200px) {
    .advantages-grid-four-columns {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .advantages-grid-four-columns {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .advantages-grid-four-columns .advantage-card {
        padding: 1.5rem;
    }
}

/* 阴离子交换膜特性板块重构样式 */
.details-content-single {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.details-section {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 2.5rem;
    border-left: 4px solid #007bff;
}

.details-section h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 1.5rem;
    position: relative;
}

.details-section h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #007bff, #0056b3);
    border-radius: 2px;
}

.details-section p {
    font-size: 1rem;
    color: #6c757d;
    line-height: 1.6;
    margin-bottom: 0;
}

/* 性能特点网格布局 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 1.5rem;
}

.feature-item {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e9ecef;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.feature-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2c3e50;
    margin-bottom: 0.8rem;
}

.feature-item p {
    font-size: 0.9rem;
    color: #6c757d;
    line-height: 1.5;
    margin: 0;
}

/* 性能特点响应式设计 */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .details-section {
        padding: 2rem;
    }
    
    .feature-item {
        padding: 1.2rem;
    }
}

/* 技术参数网格布局样式 */
.parameter-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 25px;
}

.param-group {
    background: white;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.param-group:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.param-group h4 {
    color: #007bff;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e9ecef;
    text-align: center;
}

.param-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid #f1f3f4;
}

.param-item:last-child {
    border-bottom: none;
}

.param-label {
    font-weight: 500;
    color: #495057;
    font-size: 0.95rem;
}

.param-value {
    font-weight: 600;
    color: #2c3e50;
    font-size: 0.95rem;
    background: #f8f9fa;
    padding: 4px 12px;
    border-radius: 6px;
}

/* 技术参数网格响应式设计 */
@media (max-width: 1024px) {
    .parameter-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
}

@media (max-width: 768px) {
    .parameter-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .param-group {
        padding: 20px;
    }
    
    .param-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }
    
    .param-value {
        align-self: flex-end;
    }
}

/* 产品系列样式 */
.product-series {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
}

.product-series::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="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="20" cy="20" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="80" cy="40" r="1" fill="%23ffffff" opacity="0.1"/><circle cx="40" cy="80" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    pointer-events: none;
}

.product-series .container {
    position: relative;
    z-index: 1;
}

.product-series h2 {
    color: white;
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.product-series .section-subtitle {
    color: rgba(255,255,255,0.9);
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: 50px;
}

.series-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 40px;
    margin-top: 50px;
}

.series-item {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    padding: 40px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.series-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3498db, #2ecc71, #f39c12, #e74c3c);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.series-item:hover::before {
    transform: scaleX(1);
}

.series-item:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.2);
    background: rgba(255, 255, 255, 1);
}

.series-item h3 {
    color: #2c3e50;
    font-size: 1.8rem;
    margin-bottom: 20px;
    font-weight: 700;
    position: relative;
    padding-bottom: 15px;
}

.series-item h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
    border-radius: 2px;
}

.series-overview {
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-radius: 12px;
    border-left: 4px solid #3498db;
}

.series-overview h4 {
    color: #2c3e50;
    font-size: 1.2rem;
    margin-bottom: 12px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.series-overview h4::before {
    content: '📋';
    margin-right: 8px;
    font-size: 1rem;
}

.series-overview p {
    color: #555;
    line-height: 1.7;
    margin: 0;
}

.core-advantages {
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #e8f5e8 0%, #d4edda 100%);
    border-radius: 12px;
    border-left: 4px solid #27ae60;
}

.core-advantages h4 {
    color: #27ae60;
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.core-advantages h4::before {
    content: '⭐';
    margin-right: 8px;
    font-size: 1rem;
}

.applications {
    margin-bottom: 30px;
    padding: 20px;
    background: linear-gradient(135deg, #fff3e0 0%, #ffe0b2 100%);
    border-radius: 12px;
    border-left: 4px solid #ff9800;
}

.applications h4 {
    color: #e65100;
    font-size: 1.2rem;
    margin-bottom: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
}

.applications h4::before {
    content: '🎯';
    margin-right: 8px;
    font-size: 1rem;
}

.custom-service {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 30px;
    border-radius: 15px;
    margin-top: 30px;
    position: relative;
    overflow: hidden;
}

.custom-service::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {
    0%, 100% { transform: rotate(0deg); }
    50% { transform: rotate(180deg); }
}

.custom-service h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.3rem;
    position: relative;
    z-index: 1;
}

.series-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.series-item li {
    color: #2c5530;
    margin-bottom: 10px;
    padding: 8px 0 8px 30px;
    position: relative;
    transition: all 0.2s ease;
}

.series-item li:hover {
    color: #27ae60;
    transform: translateX(5px);
}

.series-item li:before {
    content: "✓";
    position: absolute;
    left: 0;
    top: 8px;
    color: #27ae60;
    font-weight: bold;
    font-size: 1.1rem;
    width: 20px;
    height: 20px;
    background: rgba(39, 174, 96, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.series-item li:last-child {
    border-bottom: none;
}

.product-lines {
    margin-top: 25px;
    position: relative;
    z-index: 1;
}

.product-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.category {
    background: rgba(255, 255, 255, 0.15);
    padding: 20px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.category:hover {
    background: rgba(255, 255, 255, 0.25);
    transform: translateY(-3px);
}

.category h5 {
    color: white;
    margin-bottom: 12px;
    font-size: 1.1rem;
    font-weight: 600;
}

.category p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    margin: 0;
    line-height: 1.5;
}

.category ul {
    margin: 0;
}

.category li {
    font-size: 0.9em;
    padding: 4px 0;
    border: none;
    color: rgba(255, 255, 255, 0.8);
}

/* 产品系列响应式设计 */
@media (max-width: 1024px) {
    .series-grid {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: 25px;
    }
    
    .series-item {
        padding: 25px;
    }
}

@media (max-width: 768px) {
    .series-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .series-item {
        padding: 20px;
    }
    
    .category {
        padding: 12px;
    }
}

/* 产品规格参数样式 */
.product-specifications {
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, #f8f9ff 0%, #e8f2ff 100%);
    border-radius: 15px;
    border: 1px solid #e3f2fd;
}

.product-specifications h2 {
    color: #1976d2;
    font-size: 1.8rem;
    margin-bottom: 15px;
    text-align: center;
    position: relative;
}

.product-specifications h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

.specifications-table {
    margin-top: 25px;
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 10px;
    overflow: hidden;
}

.spec-table thead {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.spec-table th,
.spec-table td {
    padding: 15px 12px;
    text-align: center;
    border-bottom: 1px solid #e9ecef;
}

.spec-table th {
    font-weight: 600;
    font-size: 1rem;
}

.spec-table tbody tr:hover {
    background-color: #f8f9fa;
    transform: scale(1.01);
    transition: all 0.2s ease;
}

.spec-table td:first-child {
    text-align: left;
    font-weight: 500;
    background-color: #f8f9ff;
}

/* 标准配置样式 */
.standard-configuration {
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, #fff8e1 0%, #ffecb3 100%);
    border-radius: 15px;
    border: 1px solid #ffe0b2;
}

.standard-configuration h2 {
    color: #f57c00;
    font-size: 1.8rem;
    margin-bottom: 25px;
    text-align: center;
    position: relative;
}

.standard-configuration h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #ff9800 0%, #f57c00 100%);
    border-radius: 2px;
}

.configuration-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 25px;
}

.config-section {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border-left: 4px solid #ff9800;
    transition: all 0.3s ease;
}

.config-section:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.config-section h3 {
    color: #e65100;
    font-size: 1.3rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
}

.config-section h3::before {
    content: '⚙️';
    margin-right: 10px;
    font-size: 1.2rem;
}

.config-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.config-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f5f5f5;
    color: #555;
    line-height: 1.6;
    position: relative;
    padding-left: 25px;
}

.config-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 10px;
    color: #4caf50;
    font-weight: bold;
    font-size: 1.1rem;
}

.config-list li:last-child {
    border-bottom: none;
}

/* 可选配置样式 */
.optional-configuration {
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, #f3e5f5 0%, #e1bee7 100%);
    border-radius: 15px;
    border: 1px solid #ce93d8;
}

.optional-configuration h2 {
    color: #7b1fa2;
    font-size: 1.8rem;
    margin-bottom: 15px;
    text-align: center;
    position: relative;
}

.optional-configuration h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #9c27b0 0%, #7b1fa2 100%);
    border-radius: 2px;
}

.optional-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-top: 25px;
}

.optional-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    border-top: 4px solid #9c27b0;
    transition: all 0.3s ease;
}

.optional-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.optional-card h3 {
    color: #6a1b9a;
    font-size: 1.2rem;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.optional-card h3::before {
    content: '🔧';
    margin-right: 8px;
    font-size: 1rem;
}

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

.optional-card li {
    padding: 8px 0;
    color: #555;
    line-height: 1.5;
    position: relative;
    padding-left: 20px;
}

.optional-card li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 8px;
    color: #9c27b0;
    font-weight: bold;
    font-size: 1.2rem;
}







/* 响应式设计 */
@media (max-width: 768px) {
    .product-specifications,
    .standard-configuration,
    .optional-configuration {
        margin: 30px 0;
        padding: 20px;
    }
    
    .configuration-grid,
    .optional-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .spec-table th,
    .spec-table td {
        padding: 10px 8px;
        font-size: 0.9rem;
    }

}

/* 段落居中样式 */
p {
    text-align: center;
}

/* 电化学核心材料页面样式 */
.content-wrapper {
    display: flex;
    gap: 30px;
    margin-top: 10px;
}

.main-content-area {
    flex: 1;
    min-width: 0;
}

/* 左侧边栏样式 */
.left-sidebar {
    width: 300px;
    flex-shrink: 0;
    order: -1; /* 确保侧边栏在左边 */
    padding-top: 80px;
}

.sidebar {
    width: 300px;
    flex-shrink: 0;
}

.sidebar-section {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 60px;
    border: 1px solid #e9ecef;
}

.sidebar-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 15px;
    padding-bottom: 8px;
    border-bottom: 2px solid #667eea;
}

/* 联系我们板块 */
.contact-section .contact-info {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-section .contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: #555;
}

.contact-section .contact-item i {
    color: #667eea;
    width: 16px;
    text-align: center;
}

/* 业务领域和推荐产品板块 */
.business-links,
.product-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.business-links li,
.product-links li {
    margin-bottom: 8px;
}

.business-links a,
.product-links a {
    display: block;
    padding: 12px 16px;
    color: #555;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    background-color: #f8f9fa;
    border: 1px solid #e9ecef;
    margin-bottom: 4px;
}

.business-links a:hover,
.product-links a:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    transform: translateX(8px) translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    border-color: transparent;
}

/* 推荐产品卡片样式 */
.product-cards {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.product-card {
    background: white;
    border-radius: 12px;
    padding: 15px;
    border: 1px solid #e9ecef;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 15px;
}

.product-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.15);
    border-color: #667eea;
}

.product-card img {
    width: 80px;
    height: 80px;
    flex-shrink: 0;
    object-fit: contain;
    transition: transform 0.3s ease;
    background: transparent;
    border-radius: 8px;
}

.product-card:hover img {
    transform: scale(1.05);
}

.product-card .product-info {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.product-card .product-info h4 {
    font-size: 0.9rem;
    font-weight: 500;
    margin: 0;
    line-height: 1.4;
    flex: 1;
}

.product-card .product-info h4 a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s ease;
}

.product-card .product-info h4 a:hover {
    color: #667eea;
}

.product-card .product-arrow {
    color: #667eea;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.3s ease;
    margin-left: 10px;
}

.product-card:hover .product-arrow {
    color: #764ba2;
    transform: translateX(3px);
}

/* 企业标语板块 */
.motto-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.motto-section .company-motto {
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 0;
    font-weight: 500;
}

/* 材料展示网格 */
.materials-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 10px;
    padding: 0 40px;
    max-width: 2000px;
    margin-left: auto;
    margin-right: auto;
}

.material-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.08);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
    min-height: 420px;
}

.material-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

.material-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(102, 126, 234, 0.15);
    border-color: rgba(102, 126, 234, 0.2);
}

.material-image {
    width: 100%;
    height: 350px;
    overflow: hidden;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: relative;
}

.material-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(0,0,0,0.1), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.material-card:hover .material-image::after {
    opacity: 1;
}

.material-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.material-card:hover .material-image img {
    transform: scale(1.08);
}

.material-info {
    padding: 15px 20px;
    text-align: center;
    position: relative;
}

.material-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.material-card:hover .material-info::before {
    opacity: 1;
}

.material-info h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.4;
}

.material-info h3 a {
    color: #2c3e50;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
}

.material-info h3 a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

.material-info h3 a:hover {
    color: #667eea;
}

.material-info h3 a:hover::after {
    width: 100%;
}

/* 页面标题样式 */
.page-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 20px 0;
    position: relative;
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    color: #333;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.page-subtitle {
    font-size: 1.2rem;
    color: #6c757d;
    margin: 0 0 -10px 0;
    font-weight: 400;
    letter-spacing: 0.01em;
    position: relative;
}

.page-subtitle::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 2px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .content-wrapper {
        flex-direction: column;
        gap: 30px;
        margin-top: 35px;
    }
    
    .sidebar {
        width: 100%;
        order: -1;
        padding-top: 25px;
    }
    
    .sidebar-section {
        margin-bottom: 40px;
    }
    
    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 35px;
        margin-top: 10px;
        padding: 0 35px;
        max-width: 1800px;
    }
    
    .page-header h1 {
        font-size: 2.5rem;
    }
    
    .page-header {
        margin-bottom: 50px;
        padding: 30px 0;
    }
}

@media (max-width: 768px) {
    .content-wrapper {
        margin-top: 30px;
    }
    
    .materials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
        padding: 0 25px;
        margin-top: 10px;
        max-width: 1600px;
    }
    
    .material-card {
        border-radius: 16px;
        min-height: 480px;
    }
    
    .material-image {
        height: 350px;
    }
    
    .material-info {
        padding: 20px 15px;
    }
    
    .page-header h1 {
        font-size: 2.2rem;
    }
    
    .page-header {
        margin-bottom: 40px;
        padding: 25px 0;
    }
    
    .page-subtitle {
        font-size: 1.1rem;
    }
    
    .sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 20px;
        padding-top: 20px;
    }
    
    .sidebar-section {
        margin-bottom: 0;
    }
}

@media (max-width: 480px) {
    .content-wrapper {
        margin-top: 25px;
    }
    
    .materials-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 10px;
        padding: 0 20px;
        max-width: 1200px;
    }
    
    .material-card {
        border-radius: 12px;
        margin: 0 5px;
        min-height: 420px;
    }
    
    .material-image {
        height: 320px;
    }
    
    .material-info {
        padding: 18px 15px;
    }
    
    .material-info h3 {
        font-size: 1.1rem;
    }
    
    .page-header h1 {
        font-size: 1.9rem;
    }
    
    .page-header {
        margin-bottom: 30px;
        padding: 20px 0;
    }
    
    .page-header::before {
        width: 60px;
        height: 3px;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .sidebar {
        grid-template-columns: 1fr;
        gap: 15px;
        padding-top: 15px;
    }
}

/* 热销产品版块样式 - 深色高端商务主题 - 增强动态效果版 */
.hot-products-section {
    padding: 100px 0;
    
    /* 超级增强的深色高端渐变背景 - 三层渐变 */
    background: 
        linear-gradient(135deg, #1a365d 0%, #2d3748 25%, #4a5568 50%, #2d3748 75%, #1a365d 100%),
        linear-gradient(45deg, rgba(59, 130, 246, 0.15) 0%, transparent 50%, rgba(139, 92, 246, 0.15) 100%),
        linear-gradient(-45deg, rgba(124, 58, 237, 0.08) 0%, transparent 30%, rgba(67, 56, 202, 0.12) 70%, transparent 100%);
    background-size: 250% 250%, 180% 180%, 300% 300%;
    background-position: 0% 0%, 100% 0%, 50% 50%;
    
    /* 超级增强的流动动画 - 18秒循环 */
    animation: superEnhancedPremiumFlow 18s ease-in-out infinite;
    
    color: #ffffff;
    position: relative;
    overflow: hidden;
    
    /* 增强的box-shadow层次感 */
    box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.25), 0 0 50px rgba(59, 130, 246, 0.1);
}

/* 超级增强的银白色光晕装饰 - 多方向流动光线效果 */
.hot-products-section::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        /* 主光晕 - 增强亮度 */
        radial-gradient(ellipse at 70% 30%, rgba(255, 255, 255, 0.18) 0%, rgba(203, 213, 225, 0.12) 30%, transparent 60%),
        radial-gradient(ellipse at 30% 70%, rgba(139, 92, 246, 0.08) 0%, rgba(59, 130, 246, 0.06) 40%, transparent 70%),
        /* 多方向流动光线 - 增强亮度和复杂度 */
        linear-gradient(45deg, transparent 25%, rgba(255, 255, 255, 0.08) 50%, transparent 75%),
        linear-gradient(-45deg, transparent 30%, rgba(203, 213, 225, 0.06) 50%, transparent 70%),
        linear-gradient(135deg, transparent 35%, rgba(124, 58, 237, 0.04) 50%, transparent 65%),
        linear-gradient(-135deg, transparent 40%, rgba(67, 56, 202, 0.05) 50%, transparent 60%);
    background-size: 80% 80%, 90% 90%, 280% 280%, 220% 220%, 350% 350%, 300% 300%;
    animation: superEnhancedSilverGlow 16s ease-in-out infinite, superLightSweep 10s linear infinite;
    pointer-events: none;
    z-index: 1;
}

/* 超级增强的精致光点效果 - 15个动态粒子带旋转 */
.hot-products-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        /* 第一层粒子 - 大粒子 */
        radial-gradient(circle at 15% 25%, rgba(255, 255, 255, 0.1) 1.8px, transparent 1.8px),
        radial-gradient(circle at 85% 15%, rgba(203, 213, 225, 0.08) 1.5px, transparent 1.5px),
        radial-gradient(circle at 45% 75%, rgba(255, 255, 255, 0.09) 2px, transparent 2px),
        radial-gradient(circle at 75% 85%, rgba(148, 163, 184, 0.07) 1.6px, transparent 1.6px),
        radial-gradient(circle at 25% 65%, rgba(255, 255, 255, 0.08) 1.7px, transparent 1.7px),
        /* 第二层粒子 - 中等粒子 */
        radial-gradient(circle at 60% 40%, rgba(139, 92, 246, 0.06) 1.2px, transparent 1.2px),
        radial-gradient(circle at 30% 80%, rgba(203, 213, 225, 0.07) 1.4px, transparent 1.4px),
        radial-gradient(circle at 90% 60%, rgba(148, 163, 184, 0.05) 1.1px, transparent 1.1px),
        radial-gradient(circle at 10% 45%, rgba(255, 255, 255, 0.06) 1.5px, transparent 1.5px),
        radial-gradient(circle at 65% 20%, rgba(124, 58, 237, 0.05) 1.3px, transparent 1.3px),
        /* 第三层粒子 - 小粒子 */
        radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.04) 0.9px, transparent 0.9px),
        radial-gradient(circle at 80% 45%, rgba(67, 56, 202, 0.04) 0.8px, transparent 0.8px),
        radial-gradient(circle at 20% 90%, rgba(203, 213, 225, 0.05) 1px, transparent 1px),
        radial-gradient(circle at 55% 85%, rgba(255, 255, 255, 0.03) 0.7px, transparent 0.7px),
        radial-gradient(circle at 95% 25%, rgba(148, 163, 184, 0.04) 0.9px, transparent 0.9px);
    background-size: 
        320px 320px, 280px 280px, 420px 420px, 380px 380px, 300px 300px,
        240px 240px, 350px 350px, 200px 200px, 290px 290px, 260px 260px,
        180px 180px, 220px 220px, 340px 340px, 160px 160px, 190px 190px;
    animation: superEnhancedElegantFloat 22s linear infinite;
    pointer-events: none;
    z-index: 2;
}

/* 容器脉冲光晕动画 */
@keyframes containerPulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.02);
    }
}

/* 超级增强的优雅流动动画 - 更大变化幅度和强滤镜效果 */
@keyframes superEnhancedPremiumFlow {
    0%, 100% {
        background-position: 0% 0%, 100% 0%, 50% 50%;
        background-size: 250% 250%, 180% 180%, 300% 300%;
        filter: brightness(1) contrast(1) saturate(1);
    }
    20% {
        background-position: 80% 20%, 20% 80%, 80% 20%;
        background-size: 400% 400%, 300% 300%, 200% 200%;
        filter: brightness(1.15) contrast(1.1) saturate(1.05);
    }
    40% {
        background-position: 100% 100%, 0% 100%, 100% 0%;
        background-size: 200% 200%, 250% 250%, 350% 350%;
        filter: brightness(0.9) contrast(1.15) saturate(0.95);
    }
    60% {
        background-position: 20% 80%, 80% 20%, 0% 100%;
        background-size: 350% 350%, 200% 200%, 280% 280%;
        filter: brightness(1.1) contrast(0.9) saturate(1.1);
    }
    80% {
        background-position: 0% 100%, 100% 0%, 50% 0%;
        background-size: 300% 300%, 280% 280%, 320% 320%;
        filter: brightness(1.05) contrast(1.05) saturate(0.9);
    }
}

/* 超级增强的银色光晕动画 - 更复杂的变化和滤镜效果 */
@keyframes superEnhancedSilverGlow {
    0% { 
        opacity: 0.5; 
        transform: scale(1) rotate(0deg) translateX(0px) translateY(0px);
        filter: brightness(1) blur(0px) hue-rotate(0deg);
    }
    20% {
        opacity: 0.25;
        transform: scale(1.3) rotate(72deg) translateX(25px) translateY(-15px);
        filter: brightness(1.2) blur(1px) hue-rotate(30deg);
    }
    40% {
        opacity: 0.18;
        transform: scale(1.15) rotate(144deg) translateX(-12px) translateY(20px);
        filter: brightness(0.9) blur(0.5px) hue-rotate(60deg);
    }
    60% {
        opacity: 0.35;
        transform: scale(0.85) rotate(216deg) translateX(18px) translateY(-8px);
        filter: brightness(1.1) blur(1.5px) hue-rotate(90deg);
    }
    80% {
        opacity: 0.28;
        transform: scale(1.1) rotate(288deg) translateX(-20px) translateY(12px);
        filter: brightness(1.05) blur(0.8px) hue-rotate(120deg);
    }
    100% { 
        opacity: 0.4; 
        transform: scale(1.05) rotate(360deg) translateX(0px) translateY(0px);
        filter: brightness(1) blur(0px) hue-rotate(0deg);
    }
}

/* 超级流动光线扫描动画 - 多方向复杂扫描 */
@keyframes superLightSweep {
    0% {
        background-position: -120% -50%, -120% 50%, -150% 0%, -150% 100%;
    }
    25% {
        background-position: 0% 0%, 0% 100%, 50% 50%, 50% -50%;
    }
    50% {
        background-position: 120% 50%, 120% -50%, 150% 100%, 150% 0%;
    }
    75% {
        background-position: 200% 100%, 200% 0%, 250% 50%, 250% 150%;
    }
    100% {
        background-position: 300% 150%, 300% -100%, 350% 200%, 350% -50%;
    }
}

/* 超级增强的精致光点浮动动画 - 带旋转和复杂运动 */
@keyframes superEnhancedElegantFloat {
    0%, 100% {
        transform: translateY(0px) translateX(0px) scale(1) rotate(0deg);
        opacity: 1;
        filter: brightness(1) hue-rotate(0deg);
    }
    15% {
        transform: translateY(-18px) translateX(8px) scale(1.15) rotate(54deg);
        opacity: 0.85;
        filter: brightness(1.1) hue-rotate(20deg);
    }
    30% {
        transform: translateY(-8px) translateX(-12px) scale(0.85) rotate(108deg);
        opacity: 0.65;
        filter: brightness(0.9) hue-rotate(40deg);
    }
    45% {
        transform: translateY(-22px) translateX(5px) scale(1.08) rotate(162deg);
        opacity: 0.95;
        filter: brightness(1.05) hue-rotate(60deg);
    }
    60% {
        transform: translateY(-5px) translateX(15px) scale(0.92) rotate(216deg);
        opacity: 0.75;
        filter: brightness(1.15) hue-rotate(80deg);
    }
    75% {
        transform: translateY(-16px) translateX(-6px) scale(1.12) rotate(270deg);
        opacity: 0.88;
        filter: brightness(0.95) hue-rotate(100deg);
    }
    90% {
        transform: translateY(-10px) translateX(12px) scale(0.98) rotate(324deg);
        opacity: 0.8;
        filter: brightness(1.08) hue-rotate(120deg);
    }
}

/* 原有动画保留 */
@keyframes premiumFlow {
    0%, 100% {
        background-position: 0% 0%;
        background-size: 200% 200%;
    }
    25% {
        background-position: 100% 0%;
        background-size: 220% 220%;
    }
    50% {
        background-position: 100% 100%;
        background-size: 180% 180%;
    }
    75% {
        background-position: 0% 100%;
        background-size: 210% 210%;
    }
}

/* 银色光晕脉冲动画 */
@keyframes silverGlow {
    0% { 
        opacity: 0.3; 
        transform: scale(1) rotate(0deg);
    }
    50% {
        opacity: 0.15;
        transform: scale(1.1) rotate(180deg);
    }
    100% { 
        opacity: 0.25; 
        transform: scale(1.05) rotate(360deg);
    }
}

/* 超级增强容器脉冲动画 */
@keyframes superContainerPulse {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
        filter: brightness(1) blur(0px);
    }
    25% {
        opacity: 0.35;
        transform: scale(1.08);
        filter: brightness(1.15) blur(0.5px);
    }
    50% {
        opacity: 0.25;
        transform: scale(1.15);
        filter: brightness(0.9) blur(1px);
    }
    75% {
        opacity: 0.45;
        transform: scale(1.05);
        filter: brightness(1.1) blur(0.3px);
    }
}

/* 能量波纹扩散动画 */
@keyframes energyRipple {
    0% {
        width: 100px;
        height: 100px;
        opacity: 0.8;
        transform: translate(-50%, -50%) scale(1);
    }
    25% {
        width: 300px;
        height: 300px;
        opacity: 0.6;
        transform: translate(-50%, -50%) scale(1.2);
    }
    50% {
        width: 600px;
        height: 600px;
        opacity: 0.4;
        transform: translate(-50%, -50%) scale(1.5);
    }
    75% {
        width: 900px;
        height: 900px;
        opacity: 0.2;
        transform: translate(-50%, -50%) scale(1.8);
    }
    100% {
        width: 1200px;
        height: 1200px;
        opacity: 0;
        transform: translate(-50%, -50%) scale(2);
    }
}


/* 标题区域 */
.hot-products-header {
    text-align: center;
    margin-bottom: 60px;
}

.hot-products-section .container {
    position: relative;
    z-index: 4;
    max-width: 1800px; /* 扩大容器宽度以适应400px图片 */
    
    /* 增强脉冲光晕效果 */
    &::before {
        content: '';
        position: absolute;
        top: -20px;
        left: -20px;
        right: -20px;
        bottom: -20px;
        background: 
            radial-gradient(ellipse at center, 
                rgba(255, 255, 255, 0.05) 0%, 
                rgba(203, 213, 225, 0.03) 30%, 
                transparent 70%
            );
        border-radius: 20px;
        animation: superContainerPulse 7s ease-in-out infinite;
        pointer-events: none;
        z-index: -1;
    }
    
    /* 添加波纹扩散效果 */
    &::after {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 100px;
        height: 100px;
        background: 
            radial-gradient(circle, 
                rgba(139, 92, 246, 0.08) 0%, 
                rgba(59, 130, 246, 0.06) 30%, 
                rgba(124, 58, 237, 0.04) 60%, 
                transparent 100%
            );
        border-radius: 50%;
        transform: translate(-50%, -50%);
        animation: energyRipple 12s ease-out infinite;
        pointer-events: none;
        z-index: -1;
    }
}

.hot-products-title {
    margin-bottom: 30px;
}

.hot-products-title .title-accent {
    display: block;
    font-size: 24px;
    font-weight: 300;
    color: #cbd5e1; /* 浅灰蓝色，适应深色背景 */
    margin-bottom: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    /* 标题淡入动画 */
    opacity: 0;
    transform: translateY(20px);
    animation: titleFadeIn 0.8s ease-out 0.2s forwards;
    /* 添加文字阴影增强可读性 */
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* 标题淡入动画 */
@keyframes titleFadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hot-products-title h2 {
    font-size: 48px;
    font-weight: 700;
    margin: 0;
    color: #ffffff; /* 白色文字适应深色背景 */
    /* 添加文字阴影增强可读性 */
    text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.5);
    /* 主标题淡入动画 */
    opacity: 0;
    transform: translateY(20px);
    animation: titleFadeIn 0.8s ease-out 0.4s forwards;
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, #e2e8f0, #94a3b8); /* 浅灰到中灰渐变，适应深色主题 */
    margin: 20px auto;
    border-radius: 2px;
    /* 装饰线渐进绘制动画 */
    width: 0;
    animation: underlineDraw 1.2s ease-out 0.8s forwards;
    /* 添加微妙的银色光晕 */
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.15);
}

/* 装饰线绘制动画 */
@keyframes underlineDraw {
    to {
        width: 80px;
    }
}

.hot-products-description p {
    font-size: 18px;
    margin: 0 0 10px 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    color: #e2e8f0; /* 浅灰色文字适应深色背景 */
    /* 添加文字阴影增强可读性 */
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
    font-weight: 500; /* 增加字重提升可读性 */
}

.hot-products-description .subtitle {
    font-size: 16px;
    font-style: italic;
    color: #cbd5e1; /* 中等灰色适应深色背景 */
    /* 添加文字阴影增强可读性 */
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    font-weight: 400;
}

/* 产品展示区域 */
/* 四产品并排布局 */
.hot-products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px; /* 增加间距以适应更大的图片 */
    margin-top: 40px;
    justify-items: center; /* 居中对齐卡片 */
}

.hot-product-card {
    background: #ffffff;
    border: 1px solid rgba(59, 130, 246, 0.1);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    width: 100%; /* 确保卡片占满网格单元 */
    max-width: 400px; /* 设置最大宽度以适应400px图片 */
    
    /* 初始状态 - 为滚动进入动画准备 */
    opacity: 0;
    transform: translateY(30px);
    animation: cardFadeInUp 0.6s ease-out forwards;
}

/* 产品卡片滚动进入动画 */
@keyframes cardFadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 为不同卡片添加延迟，创造波浪效果 */
.hot-product-card:nth-child(1) {
    animation-delay: 0.1s;
}

.hot-product-card:nth-child(2) {
    animation-delay: 0.2s;
}

.hot-product-card:nth-child(3) {
    animation-delay: 0.3s;
}

.hot-product-card:nth-child(4) {
    animation-delay: 0.4s;
}

.hot-product-card:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(1deg);
    background: #ffffff;
    box-shadow: 
        0 20px 25px -5px rgba(0, 0, 0, 0.1), 
        0 10px 10px -5px rgba(0, 0, 0, 0.04),
        0 0 0 1px rgba(59, 130, 246, 0.1);
    border-color: rgba(59, 130, 246, 0.3);
    position: relative;
}

/* 微光扫过效果 */
.hot-product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(59, 130, 246, 0.1),
        transparent
    );
    transition: left 0.6s ease;
    z-index: 1;
}

.hot-product-card:hover::before {
    left: 100%;
}

.card-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    padding: 10px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 5px;
    z-index: 2;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-badge.hot {
    background: linear-gradient(45deg, #ff6b6b, #ff8e8e);
    color: white;
    box-shadow: 0 3px 12px rgba(255, 107, 107, 0.4);
}

.card-badge.recommended {
    background: linear-gradient(45deg, #4ecdc4, #44a08d);
    color: white;
    box-shadow: 0 3px 12px rgba(78, 205, 196, 0.4);
}

.card-badge.new {
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    box-shadow: 0 3px 12px rgba(102, 126, 234, 0.4);
}

.card-badge.premium {
    background: linear-gradient(45deg, #ffd700, #ffed4e);
    color: #333;
    box-shadow: 0 3px 12px rgba(255, 215, 0, 0.4);
}

/* 折扣标签样式 - 与推荐标签一致 */
.card-badge.discount {
    background: linear-gradient(45deg, #ff4757, #ff3742);
    color: white;
    box-shadow: 0 3px 12px rgba(255, 71, 87, 0.4);
}

.card-image {
    width: 100%;
    max-width: 420px;
    height: 360px;
    border-radius: 0;
    overflow: hidden;
    position: relative;
    margin: 0 auto 20px auto;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.hot-product-card:hover .card-image img {
    transform: scale(1.08);
}

.image-hover-effect {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.8);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hot-product-card:hover .image-hover-effect {
    opacity: 1;
}

.card-content {
    position: relative;
    z-index: 1;
}

.card-content h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: #333;
}

.card-content p {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 15px;
    color: #666;
}

.card-footer {
    display: flex;
    justify-content: center;
}

.card-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    color: white;
    text-decoration: none;
    border-radius: 20px;
    font-weight: 500;
    font-size: 14px;
    transition: all 0.3s ease;
}

.card-btn:hover {
    background: linear-gradient(45deg, #5a67d8, #6b46c1);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .hot-products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 30px;
    }
    
    .card-image {
        width: 100%;
        height: 250px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px auto;
    }
    
    /* 中等屏幕下所有标签保持一致大小 */
    .card-badge {
        font-size: 13px;
        padding: 8px 14px;
    }
}

@media (max-width: 900px) {
    .hot-products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .card-image {
        width: 100%;
        height: 264px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px auto;
    }
}

@media (max-width: 768px) {
    .hot-products-section {
        padding: 80px 0;
        /* 保持现代蓝紫色渐变背景 */
        background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 25%, #7c3aed 50%, #a855f7 75%, #c084fc 100%);
        
        /* 简化分子结构图案以适应小屏幕 */
        background-image: 
            /* 分子节点 */
            radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.1) 1.5px, transparent 1.5px),
            radial-gradient(circle at 80% 30%, rgba(255, 255, 255, 0.08) 2px, transparent 2px),
            radial-gradient(circle at 30% 70%, rgba(255, 255, 255, 0.12) 1.5px, transparent 1.5px),
            radial-gradient(circle at 70% 80%, rgba(255, 255, 255, 0.1) 2px, transparent 2px),
            /* 连接线 */
            linear-gradient(45deg, transparent 48%, rgba(255, 255, 255, 0.05) 49%, rgba(255, 255, 255, 0.05) 51%, transparent 52%);
        
        background-size: 
            120px 120px, 150px 110px, 110px 130px, 130px 120px,
            60px 60px;
        background-position: 
            0 0, 60px 30px, 30px 60px, 90px 70px,
            0 0;
    }
    
    .hot-products-title h2 {
        font-size: 36px;
    }
    
    .hot-products-grid {
        grid-template-columns: 1fr;
        gap: 25px;
        margin-top: 30px;
    }
    
    .hot-product-card {
        padding: 20px;
    }
    
    .card-image {
        width: 100%;
        height: 200px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px auto;
    }
    
    /* 小屏幕下所有标签保持一致大小和动画 */
    .card-badge {
        font-size: 12px;
        padding: 7px 12px;
        top: 4px;
        right: 4px;
    }
}

@media (max-width: 480px) {
    .hot-products-section {
        padding: 60px 0;
        /* 保持现代蓝紫色渐变背景 */
        background: linear-gradient(135deg, #1e3a8a 0%, #3730a3 25%, #7c3aed 50%, #a855f7 75%, #c084fc 100%);
        
        /* 进一步简化分子结构图案以适应超小屏幕 */
        background-image: 
            /* 分子节点 */
            radial-gradient(circle at 25% 25%, rgba(255, 255, 255, 0.1) 1px, transparent 1px),
            radial-gradient(circle at 75% 35%, rgba(255, 255, 255, 0.08) 1.5px, transparent 1.5px),
            radial-gradient(circle at 35% 75%, rgba(255, 255, 255, 0.12) 1px, transparent 1px);
        
        background-size: 
            80px 80px, 100px 75px, 75px 90px;
        background-position: 
            0 0, 40px 20px, 20px 40px;
    }
    
    /* 移动设备性能优化 - 简化动画 */
    .hot-products-section::after {
        animation-duration: 40s; /* 减慢动画速度 */
        background-size: 150px 75px; /* 减少微粒密度 */
    }
    
    .hot-product-card {
        /* 简化移动设备上的3D效果 */
        transition: transform 0.2s ease, box-shadow 0.2s ease;
    }
    
    .hot-product-card:hover {
        transform: translateY(-4px); /* 简化为2D变换 */
    }
    
    .hot-product-card::before {
        display: none; /* 移动设备上禁用微光效果 */
    }
    
    .hot-products-title h2 {
        font-size: 28px;
    }
    
    .hot-product-card {
        padding: 16px;
    }
    
    .card-image {
        width: 100%;
        height: 216px;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 20px auto;
    }
    
    .card-content h4 {
        font-size: 16px;
    }
    
    .card-content p {
        font-size: 13px;
    }
    
    /* 超小屏幕下所有标签保持一致大小 */
    .card-badge {
        font-size: 11px;
        padding: 6px 10px;
        top: 3px;
        right: 3px;
    }
}
    
    .product-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .card-image {
        height: 140px;
    }
}

/* Fancy Technical Parameters Section */
.technical-parameters {
    position: relative;
    padding: 60px 40px;
    background: radial-gradient(circle at 10% 20%, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 90%);
    border-radius: 30px;
    margin: 60px 0;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.03);
}

/* Decorative background elements */
.technical-parameters::before {
    content: '';
    position: absolute;
    top: -100px;
    right: -100px;
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    filter: blur(80px);
    opacity: 0.1;
    border-radius: 50%;
    z-index: 0;
}

.technical-parameters::after {
    content: '';
    position: absolute;
    bottom: -50px;
    left: -50px;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, #00bcd4, #2196f3);
    filter: blur(60px);
    opacity: 0.1;
    border-radius: 50%;
    z-index: 0;
}

.tech-params-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    position: relative;
    z-index: 1;
}

.tech-param-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    padding: 35px;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
}

.tech-param-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #667eea, #764ba2);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}

.tech-param-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 50px rgba(102, 126, 234, 0.15);
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(255, 255, 255, 1);
}

.tech-param-card:hover::after {
    transform: scaleX(1);
}

.tech-param-header {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.tech-param-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
    transform: rotate(-5deg);
    transition: all 0.4s ease;
}

/* Custom icon colors for each card */
.tech-param-card:nth-child(2) .tech-param-icon {
    background: linear-gradient(135deg, #00bcd4, #2196f3);
    box-shadow: 0 10px 20px rgba(33, 150, 243, 0.3);
}

.tech-param-card:nth-child(3) .tech-param-icon {
    background: linear-gradient(135deg, #ff9800, #f44336);
    box-shadow: 0 10px 20px rgba(244, 67, 54, 0.3);
}

.tech-param-card:hover .tech-param-icon {
    transform: rotate(0deg) scale(1.1);
    border-radius: 50%;
}

.tech-param-header h3 {
    margin: 0;
    font-size: 22px;
    color: #2c3e50;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(90deg, #2c3e50, #4a5568);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.tech-param-list {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.tech-param-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0 5px 20px;
    position: relative;
}

.tech-param-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e9ecef;
    transition: all 0.3s ease;
}

.tech-param-card:hover .tech-param-item::before {
    background: #667eea;
    box-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
}

/* Custom bullet colors */
.tech-param-card:nth-child(2):hover .tech-param-item::before { background: #00bcd4; box-shadow: 0 0 10px rgba(0, 188, 212, 0.5); }
.tech-param-card:nth-child(3):hover .tech-param-item::before { background: #ff9800; box-shadow: 0 0 10px rgba(255, 152, 0, 0.5); }

.tech-param-label {
    color: #8898aa;
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.tech-param-value {
    font-weight: 800;
    font-size: 18px;
    text-align: right;
    transition: transform 0.3s ease;
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-image: linear-gradient(90deg, #2c3e50, #4a5568);
}

.tech-param-item:hover .tech-param-value {
    transform: translateX(-5px) scale(1.05);
}

/* Specific value gradients */
.tech-param-card:nth-child(1) .tech-param-value { background-image: linear-gradient(90deg, #667eea, #764ba2); }
.tech-param-card:nth-child(2) .tech-param-value { background-image: linear-gradient(90deg, #00bcd4, #2196f3); }
.tech-param-card:nth-child(3) .tech-param-value { background-image: linear-gradient(90deg, #ff9800, #f44336); }

@media (max-width: 768px) {
    .technical-parameters {
        padding: 30px 20px;
    }
    
    .tech-param-card {
        padding: 25px;
    }
    
    .tech-param-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .tech-param-value {
        text-align: left;
        font-size: 18px;
        transform: none !important;
    }
}