/* 工业风格重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --industrial-dark: #1a1a1a;
    --industrial-darker: #0d1117;
    --industrial-light: #2d3748;
    --industrial-orange: #ff8c42;
    --industrial-yellow: #ffd60a;
    --industrial-blue: #0ea5e9;
    --industrial-gray: #64748b;
    --industrial-light-gray: #e2e8f0;
    --industrial-white: #ffffff;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--industrial-darker);
    color: var(--industrial-white);
    line-height: 1.6;
}

.topbar {
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.92), rgba(46, 62, 92, 0.92));
    color: var(--industrial-white);
    font-size: 0.9rem;
    border-bottom: 1px solid rgba(255, 140, 66, 0.25);
}

.topbar-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 10px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.topbar-info,
.topbar-actions {
    display: flex;
    align-items: center;
    gap: 18px;
}

.topbar-info span {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    opacity: 0.85;
}

.topbar-info i {
    color: var(--industrial-orange);
}

.topbar-actions a {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid rgba(255, 140, 66, 0.35);
    color: var(--industrial-yellow);
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s ease, color 0.3s ease;
}

.topbar-actions a:hover {
    background: rgba(255, 140, 66, 0.2);
    color: var(--industrial-white);
}

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

/* 工业风导航 */
.industrial-header {
    background: linear-gradient(135deg, var(--industrial-dark) 0%, var(--industrial-light) 100%);
    border-bottom: 3px solid var(--industrial-orange);
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 900;
    backdrop-filter: blur(10px);
}

.industrial-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: 20px;
    padding-right: 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.nav-brand img {
    width: 50px;
    height: 50px;
}

.brand-text h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--industrial-orange);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.brand-text span {
    font-size: 0.8rem;
    color: var(--industrial-yellow);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: var(--industrial-white);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--industrial-orange);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-links a:hover {
    color: var(--industrial-orange);
}

.nav-links li {
    list-style: none;
    position: relative;
}

.nav-links .dropdown > a {
    display: inline-block;
}

.dropdown-menu {
    position: absolute;
    top: 110%;
    left: 0;
    min-width: 200px;
    background: rgba(26, 26, 26, 0.95);
    border: 1px solid rgba(255, 140, 66, 0.3);
    border-radius: 10px;
    padding: 12px 0;
    display: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
    backdrop-filter: blur(12px);
    z-index: 999;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
    display: block;
}

.dropdown-menu a {
    display: block;
    padding: 10px 20px;
    color: var(--industrial-white);
    font-size: 0.9rem;
    text-transform: none;
    letter-spacing: 0;
    transition: background 0.3s ease, color 0.3s ease;
}

.dropdown-menu a::after {
    display: none;
}

.dropdown-menu a:hover {
    background: rgba(255, 140, 66, 0.15);
    color: var(--industrial-orange);
}

/* 工业主视觉 */
.industrial-hero {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--industrial-darker) 0%, var(--industrial-dark) 50%, var(--industrial-light) 100%);
    position: relative;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        45deg,
        transparent,
        transparent 2px,
        rgba(255, 140, 66, 0.03) 2px,
        rgba(255, 140, 66, 0.03) 4px
    );
}

.industrial-hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-stats {
    display: flex;
    gap: 30px;
    margin-bottom: 30px;
}

.stat-item {
    text-align: center;
    padding: 15px;
    background: rgba(255, 140, 66, 0.1);
    border-left: 4px solid var(--industrial-orange);
    border-radius: 0 8px 8px 0;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 800;
    color: var(--industrial-orange);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--industrial-light-gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-content h1 {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.highlight {
    background: linear-gradient(45deg, var(--industrial-orange), var(--industrial-yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--industrial-gray);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 20px;
}

.btn-industrial {
    background: linear-gradient(45deg, var(--industrial-orange), var(--industrial-yellow));
    color: var(--industrial-dark);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 5px;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-industrial:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(255, 140, 66, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--industrial-white);
    padding: 15px 35px;
    text-decoration: none;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid var(--industrial-orange);
    border-radius: 5px;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-outline:hover {
    background: var(--industrial-orange);
    color: var(--industrial-dark);
    transform: translateY(-2px);
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    border-radius: 10px;
    border: 3px solid var(--industrial-orange);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* 区域标题样式 */
.section-title {
    font-size: 2.8rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 60px;
    text-transform: uppercase;
    color: var(--industrial-white);
}

.title-accent {
    font-size: 1rem;
    color: var(--industrial-orange);
    display: block;
    margin-top: 10px;
    letter-spacing: 3px;
}

/* 生产能力区域 */
.capabilities-section {
    padding: 100px 0;
    background: var(--industrial-dark);
    position: relative;
}

.capabilities-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--industrial-orange), transparent);
}

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

.capability-card {
    background: var(--industrial-light);
    border-radius: 15px;
    padding: 40px;
    border-left: 5px solid var(--industrial-orange);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.capability-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 140, 66, 0.1) 0%, transparent 70%);
}

.capability-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.2);
}

.capability-card .card-icon {
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 20px;
    border: 2px solid rgba(255, 140, 66, 0.25);
}

.capability-card .card-icon img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    display: block;
}

.capability-card h3 {
    font-size: 1.5rem;
    color: var(--industrial-orange);
    margin-bottom: 20px;
    text-transform: uppercase;
    font-weight: 700;
}

.capability-card ul {
    list-style: none;
}

.capability-card li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--industrial-light-gray);
}

.capability-card li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--industrial-orange);
    font-size: 0.8rem;
}

/* 产品中心 */
.products-section {
    padding: 100px 0;
    background: var(--industrial-darker);
}

.product-categories {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.product-category {
    padding: 12px 25px;
    background: var(--industrial-light);
    color: var(--industrial-white);
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 2px solid transparent;
}

.product-category:hover,
.product-category.active {
    background: var(--industrial-orange);
    color: var(--industrial-dark);
    transform: translateY(-2px);
}

.products-showcase {
    position: relative;
}

.product-grid {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.product-grid.active {
    display: grid;
}

.product-item {
    background: var(--industrial-light);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.product-item:hover {
    transform: translateY(-10px);
    border-color: var(--industrial-orange);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-info {
    padding: 25px;
}

.product-info h4 {
    font-size: 1.3rem;
    color: var(--industrial-orange);
    margin-bottom: 10px;
    font-weight: 700;
}

.product-info p {
    color: var(--industrial-light-gray);
    line-height: 1.6;
}

/* 技术工艺时间线 */
.technology-section {
    padding: 100px 0;
    background: var(--industrial-dark);
    position: relative;
}

.tech-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.tech-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 100%;
    background: linear-gradient(to bottom, var(--industrial-orange), var(--industrial-yellow));
}

.tech-step {
    display: flex;
    align-items: center;
    margin-bottom: 60px;
    position: relative;
}

.tech-step:nth-child(even) {
    flex-direction: row-reverse;
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(45deg, var(--industrial-orange), var(--industrial-yellow));
    color: var(--industrial-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 1.2rem;
    position: relative;
    z-index: 2;
    margin: 0 20px;
}

.step-content {
    background: var(--industrial-light);
    padding: 30px;
    border-radius: 15px;
    flex: 1;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.step-content:hover {
    border-color: var(--industrial-orange);
    transform: translateY(-5px);
}

.step-content img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 20px;
}

.step-content h3 {
    color: var(--industrial-orange);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 15px;
    text-transform: uppercase;
}

/* 质量控制 */
.quality-section {
    padding: 100px 0;
    background: var(--industrial-darker);
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.quality-item {
    text-align: center;
    background: var(--industrial-light);
    padding: 40px;
    border-radius: 15px;
    transition: all 0.3s ease;
    border-top: 5px solid var(--industrial-orange);
}

.quality-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(255, 140, 66, 0.2);
}

.quality-item img {
    width: 100%;
    height: 150px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 25px;
}

.quality-item h3 {
    font-size: 1.4rem;
    color: var(--industrial-orange);
    margin-bottom: 15px;
    font-weight: 700;
    text-transform: uppercase;
}

/* 联系我们 */
.contact-section {
    padding: 100px 0;
    background: var(--industrial-dark);
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
}

.contact-info h3 {
    color: var(--industrial-orange);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-item img {
    width: 120px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    border: 2px solid var(--industrial-orange);
}

.contact-details p {
    margin-bottom: 8px;
    color: var(--industrial-light-gray);
}

.contact-details strong {
    color: var(--industrial-orange);
}

.facility-specs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.spec-item {
    background: var(--industrial-light);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    border-left: 4px solid var(--industrial-orange);
}

.spec-label {
    display: block;
    color: var(--industrial-light-gray);
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.spec-value {
    display: block;
    color: var(--industrial-orange);
    font-size: 1.5rem;
    font-weight: 800;
}

.inquiry-form {
    background: var(--industrial-light);
    padding: 40px;
    border-radius: 15px;
    border: 2px solid var(--industrial-orange);
}

.inquiry-form h3 {
    color: var(--industrial-orange);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 25px;
    text-transform: uppercase;
}

.inquiry-form input,
.inquiry-form select,
.inquiry-form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    background: var(--industrial-darker);
    border: 2px solid var(--industrial-gray);
    border-radius: 8px;
    color: var(--industrial-white);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.inquiry-form input:focus,
.inquiry-form select:focus,
.inquiry-form textarea:focus {
    outline: none;
    border-color: var(--industrial-orange);
    box-shadow: 0 0 0 3px rgba(255, 140, 66, 0.1);
}

/* 工业风页脚 */
.industrial-footer {
    background: var(--industrial-darker);
    border-top: 3px solid var(--industrial-orange);
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    color: var(--industrial-orange);
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.footer-section h4 {
    color: var(--industrial-yellow);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    padding: 5px 0;
    color: var(--industrial-light-gray);
}

.footer-section p {
    color: var(--industrial-light-gray);
    line-height: 1.6;
}

.footer-bottom {
    border-top: 1px solid var(--industrial-light);
    padding-top: 30px;
    text-align: center;
    color: var(--industrial-gray);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .industrial-hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .capabilities-grid {
        grid-template-columns: 1fr;
    }
    
    .product-categories {
        flex-direction: column;
        align-items: center;
    }
    
    .contact-layout {
        grid-template-columns: 1fr;
    }
    
    .tech-timeline::before {
        left: 30px;
    }
    
    .tech-step {
        flex-direction: row !important;
        padding-left: 60px;
    }
    
    .step-number {
        position: absolute;
        left: 0;
        margin: 0;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

/* 生产能力详情页 */
.capabilities-detail-hero {
    min-height: 60vh;
    background: linear-gradient(135deg, var(--industrial-darker) 0%, var(--industrial-dark) 50%, var(--industrial-light) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    overflow: hidden;
}

.process-section {
    padding: 100px 0;
    background: var(--industrial-dark);
}

.process-section.even {
    background: var(--industrial-darker);
}

.process-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.process-content.reverse {
    grid-template-columns: 1fr 1fr;
}

.process-text h3 {
    font-size: 2rem;
    color: var(--industrial-orange);
    margin-bottom: 20px;
}

.process-text p {
    color: var(--industrial-light-gray);
    margin-bottom: 20px;
    line-height: 1.8;
}

.process-text ul {
    list-style: none;
}

.process-text li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--industrial-light-gray);
}

.process-text li::before {
    content: '✔';
    position: absolute;
    left: 0;
    color: var(--industrial-yellow);
}

.process-image img {
    width: 100%;
    border-radius: 10px;
    border: 3px solid var(--industrial-orange);
}




/* 产品中心详情页 */
.products-detail-hero {
    min-height: 60vh;
    background: linear-gradient(135deg, var(--industrial-darker) 0%, var(--industrial-dark) 50%, var(--industrial-light) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    overflow: hidden;
}

.product-category-section {
    padding: 100px 0;
    background: var(--industrial-dark);
}

.product-category-section.even {
    background: var(--industrial-darker);
}

.product-grid-detail {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.product-item-detail {
    background: var(--industrial-light);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    text-align: center;
    padding-bottom: 20px;
}

.product-item-detail:hover {
    transform: translateY(-10px);
    border-color: var(--industrial-orange);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-item-detail img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    margin-bottom: 20px;
}

.product-item-detail h4 {
    font-size: 1.4rem;
    color: var(--industrial-orange);
    margin-bottom: 10px;
    font-weight: 700;
    padding: 0 20px;
}

.product-item-detail p {
    color: var(--industrial-light-gray);
    line-height: 1.6;
    padding: 0 20px;
}



/* 卡片链接样式 */
.card-link, .product-link {
    text-decoration: none;
    color: inherit;
    display: block;
    width: 100%;
    height: 100%;
}

.card-link:hover, .product-link:hover {
    text-decoration: none;
    color: inherit;
}

/* 详情页面样式 */
.detail-hero {
    min-height: 60vh;
    background: linear-gradient(135deg, var(--industrial-darker) 0%, var(--industrial-dark) 50%, var(--industrial-light) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px;
    overflow: hidden;
}

.detail-content {
    padding: 100px 0;
    background: var(--industrial-dark);
}

.intro-section {
    text-align: center;
    margin-bottom: 80px;
}

.intro-section h2 {
    font-size: 2.5rem;
    color: var(--industrial-orange);
    margin-bottom: 30px;
}

.intro-section p {
    font-size: 1.2rem;
    color: var(--industrial-light-gray);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.products-showcase {
    margin-bottom: 80px;
}

.products-showcase h2 {
    font-size: 2.5rem;
    color: var(--industrial-orange);
    text-align: center;
    margin-bottom: 60px;
}

.product-series {
    margin-bottom: 80px;
    padding: 60px 0;
    border-bottom: 2px solid var(--industrial-light);
}

.product-series:last-child {
    border-bottom: none;
}

.product-series.reverse .series-content {
    flex-direction: row-reverse;
}

.series-content {
    display: flex;
    gap: 60px;
    align-items: center;
}

.series-text {
    flex: 1;
}

.series-text h3 {
    font-size: 2rem;
    color: var(--industrial-orange);
    margin-bottom: 20px;
}

.series-text p {
    color: var(--industrial-light-gray);
    margin-bottom: 30px;
    line-height: 1.8;
    font-size: 1.1rem;
}

.product-list {
    list-style: none;
    margin-bottom: 30px;
}

.product-list li {
    padding: 8px 0;
    padding-left: 20px;
    position: relative;
    color: var(--industrial-light-gray);
}

.product-list li::before {
    content: '▶';
    position: absolute;
    left: 0;
    color: var(--industrial-yellow);
}

.features h4 {
    color: var(--industrial-orange);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.features ul {
    list-style: none;
}

.features li {
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
    color: var(--industrial-light-gray);
}

.features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--industrial-yellow);
    font-weight: bold;
}

.series-image {
    flex: 1;
}

.series-image img {
    width: 100%;
    border-radius: 10px;
    border: 3px solid var(--industrial-orange);
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.advantage-item {
    background: var(--industrial-light);
    padding: 30px;
    border-radius: 10px;
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    border-color: var(--industrial-orange);
    transform: translateY(-5px);
}

.advantage-item h4 {
    color: var(--industrial-orange);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.advantage-item p {
    color: var(--industrial-light-gray);
    line-height: 1.6;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .series-content {
        flex-direction: column;
        gap: 40px;
    }
    
    .product-series.reverse .series-content {
        flex-direction: column;
    }
    
    .advantage-grid {
        grid-template-columns: 1fr;
    }
}
.hero-metric-strip {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 24px;
}

.hero-metric-card {
    background: rgba(14, 165, 233, 0.1);
    border: 1px solid rgba(14, 165, 233, 0.25);
    border-radius: 16px;
    padding: 18px;
    box-shadow: 0 12px 24px rgba(14, 165, 233, 0.12);
}

.hero-metric-card h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--industrial-blue);
    margin-bottom: 4px;
}

.hero-metric-card p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.75);
}

.cta-band {
    margin-top: 40px;
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.18), rgba(255, 140, 66, 0.18));
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 18px;
    padding: 22px 28px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.18);
}

.cta-band p {
    font-size: 1rem;
    color: var(--industrial-light-gray);
}

.cta-band a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border-radius: 999px;
    background: var(--industrial-orange);
    color: var(--industrial-darker);
    font-weight: 700;
    text-decoration: none;
    letter-spacing: 0.5px;
    transition: transform 0.3s ease, background 0.3s ease;
}

.cta-band a:hover {
    background: var(--industrial-yellow);
    transform: translateY(-2px);
}

.reveal-ready {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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