/* 
 * 文件名: home.css
 * 描述: 首页专用样式表
 */

/* ====================================
 * 1. 英雄区 (Hero Section)
 * ==================================== */
.hero {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    overflow: hidden;
}

.hero::before,
.hero::after {
    content: "";
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.6;
    z-index: 0;
}

.hero::before {
    width: 320px;
    height: 320px;
    background: rgba(0, 86, 179, 0.25);
    top: -80px;
    right: 10%;
}

.hero::after {
    width: 260px;
    height: 260px;
    background: rgba(255, 193, 7, 0.25);
    bottom: -120px;
    left: 15%;
}

.hero-content,
.hero-visual {
    position: relative;
    z-index: 1;
}

.hero-content h1 {
    font-size: 3rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #666;
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
}

.hero-metrics {
    margin-top: var(--spacing-lg);
    display: grid;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    gap: var(--spacing-lg);
}

.hero-visual {
    text-align: right;
}

.hero-badge {
    position: absolute;
    bottom: 24px;
    right: 24px;
    background: rgba(0, 86, 179, 0.9);
    color: var(--color-text-light);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 0.9rem;
    box-shadow: var(--box-shadow-md);
}

.hero-image {
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-lg);
}

.hero-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@media (max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
    }
    .hero-content h1 {
        font-size: 2rem;
    }
    .hero-buttons {
        flex-direction: column;
    }
    .hero-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

/* ====================================
 * 2. 核心优势区 (Advantages Section)
 * ==================================== */
.advantages {
    background-color: var(--color-background);
    padding: var(--spacing-xl) 0;
}

.advantages h2 {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.advantage-card {
    background-color: var(--color-light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--box-shadow-sm);
}

.advantage-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
    background-color: var(--color-background);
}

.advantage-card .icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.advantage-card h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.advantage-card p {
    color: #666;
    font-size: 0.95rem;
}

/* ====================================
 * 3. 流体制造 (Fluid Manufacturing)
 * ==================================== */
.fluid-manufacturing {
    background: radial-gradient(circle at top right, rgba(0, 86, 179, 0.12), transparent 60%);
    padding: var(--spacing-xl) 0;
}

.fluid-text p {
    line-height: 1.9;
}

.fluid-points {
    list-style: none;
    margin-top: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.fluid-points li {
    background: rgba(255, 255, 255, 0.85);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--color-primary);
    box-shadow: var(--box-shadow-sm);
}

.fluid-media {
    position: relative;
}

.fluid-media img {
    width: 100%;
    border-radius: 32px;
    box-shadow: var(--box-shadow-lg);
    border: 8px solid rgba(255, 255, 255, 0.9);
}

.fluid-media::before {
    content: "";
    position: absolute;
    inset: 20px;
    border-radius: 32px;
    border: 1px dashed rgba(0, 86, 179, 0.3);
    pointer-events: none;
}

/* ====================================
 * 4. 产品展示区 (Products Preview)
 * ==================================== */
.products-preview {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.products-preview h2,
.products-preview .section-lead {
    text-align: center;
}

.product-stack {
    margin-bottom: var(--spacing-lg);
}

.product-card {
    background-color: var(--color-background);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--box-shadow-sm);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.product-card.highlight {
    border: 1px solid rgba(0, 86, 179, 0.2);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--box-shadow-lg);
}

.product-card img {
    width: 100%;
    height: 210px;
    object-fit: cover;
}

.product-content {
    padding: var(--spacing-md);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.product-content h4 {
    margin: 0;
    color: var(--color-primary);
}

.product-content p {
    color: #666;
    flex: 1;
}

.product-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.product-tags span {
    background: rgba(0, 86, 179, 0.08);
    color: var(--color-primary);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
}

.view-all-btn {
    text-align: center;
    margin-top: var(--spacing-lg);
}

/* ====================================
 * 5. 定制体验 (Customizer)
 * ==================================== */
.customizer {
    padding: var(--spacing-xl) 0;
    background: #f6f8fb;
}

.customizer-panel {
    background: var(--color-background);
    padding: var(--spacing-xl);
    border-radius: 32px;
    box-shadow: var(--box-shadow-lg);
}

.customizer-control {
    margin: var(--spacing-xl) 0 var(--spacing-md);
}

.customizer-control label {
    font-weight: 600;
    display: block;
    margin-bottom: var(--spacing-sm);
}

.customizer-control input[type="range"] {
    width: 100%;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: #666;
    margin-top: var(--spacing-sm);
}

.customizer-output {
    background: var(--color-light-gray);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.customizer-buttons {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.customizer-visual {
    position: relative;
    background: linear-gradient(135deg, rgba(0, 86, 179, 0.08), rgba(255, 193, 7, 0.12));
    border-radius: 32px;
    padding: var(--spacing-lg);
}

.customizer-visual img {
    border-radius: 24px;
    box-shadow: var(--box-shadow-lg);
}

.customizer-metrics {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.customizer-metrics .metric {
    background: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
}

/* ====================================
 * 6. 应用领域区 (Applications Preview)
 * ==================================== */
.applications-preview {
    padding: var(--spacing-xl) 0;
}

.applications-preview h2,
.applications-preview .section-lead {
    text-align: center;
}

.app-grid {
    margin-top: var(--spacing-xl);
}

.app-item {
    background-color: var(--color-background);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--box-shadow-sm);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.app-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--box-shadow-lg);
}

.app-item img {
    width: 100%;
    height: 180px;
    object-fit: cover;
}

.app-content {
    padding: var(--spacing-lg);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.app-content ul {
    margin-left: var(--spacing-md);
    color: #666;
}

.app-content .read-more {
    margin-top: auto;
}

/* ====================================
 * 7. 数字化实验室 (Digital Lab)
 * ==================================== */
.digital-lab {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(120deg, rgba(0, 86, 179, 0.08), rgba(40, 167, 69, 0.05));
}

.lab-grid {
    gap: var(--spacing-lg);
}

.lab-card {
    background: var(--color-background);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: var(--box-shadow-sm);
    display: flex;
    flex-direction: column;
}

.lab-card img {
    height: 200px;
    object-fit: cover;
}

.lab-card h3 {
    margin: var(--spacing-md) var(--spacing-md) 0;
    color: var(--color-primary);
}

.lab-card p {
    margin: var(--spacing-sm) var(--spacing-md);
    color: #666;
}

.lab-list {
    list-style: none;
    padding: 0 var(--spacing-md) var(--spacing-lg);
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.lab-list li {
    padding-left: var(--spacing-md);
    position: relative;
    color: #555;
}

.lab-list li::before {
    content: "•";
    color: var(--color-secondary);
    position: absolute;
    left: 0;
}

/* ====================================
 * 8. 交付流程 (Process Flow)
 * ==================================== */
.process-flow {
    padding: var(--spacing-xl) 0;
}

.process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.process-card {
    background: var(--color-background);
    border-radius: 20px;
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-sm);
    border-top: 4px solid var(--color-primary);
    position: relative;
    min-height: 220px;
}

.process-step {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--color-secondary);
    letter-spacing: 0.2em;
}

.process-time {
    position: absolute;
    bottom: var(--spacing-md);
    font-size: 0.85rem;
    color: #999;
}

/* ====================================
 * 9. 质量仪表 (Quality Dashboard)
 * ==================================== */
.quality-dashboard {
    padding: var(--spacing-xl) 0;
    background: var(--color-primary);
    color: var(--color-text-light);
}

.quality-metric {
    text-align: center;
    padding: var(--spacing-lg);
}

.quality-metric .metric-number {
    color: var(--color-text-light);
    font-size: 2rem;
}

.quality-metric small {
    display: block;
    margin-top: var(--spacing-sm);
    opacity: 0.85;
}

/* ====================================
 * 10. 新闻动态区 (News Preview)
 * ==================================== */
.news-preview {
    padding: var(--spacing-xl) 0;
    background: #f7f8fb;
}

.news-card {
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    transition: all 0.3s ease;
    border-top: 3px solid var(--color-primary);
    position: relative;
}

.news-card:hover {
    box-shadow: var(--box-shadow-lg);
    transform: translateY(-5px);
}

.news-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-secondary);
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.news-card h4 {
    color: var(--color-primary);
    margin-top: 0;
    margin-bottom: var(--spacing-sm);
}

.news-date {
    color: #999;
    font-size: 0.85rem;
    margin-bottom: var(--spacing-sm);
}

.news-card p {
    color: #666;
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.read-more {
    color: var(--color-primary);
    font-weight: bold;
    transition: color 0.3s ease;
}

.read-more:hover {
    color: var(--color-secondary);
}

/* ====================================
 * 11. 合作伙伴区 (Partners)
 * ==================================== */
.partners {
    padding: var(--spacing-xl) 0;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.partner-item {
    background: var(--color-light-gray);
    border-radius: 24px;
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: var(--box-shadow-sm);
}

.partner-item span {
    font-weight: 700;
    color: var(--color-primary);
}

.partner-item em {
    display: block;
    margin-top: var(--spacing-sm);
    color: #666;
    font-style: normal;
}

/* ====================================
 * 12. 联系我们预览区 (Contact Preview)
 * ==================================== */
.contact-preview {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-light-gray);
}

.contact-info {
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.contact-cta h3 {
    margin-bottom: var(--spacing-sm);
}

.contact-info h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.contact-info p {
    margin-bottom: var(--spacing-sm);
    line-height: 1.8;
}

.contact-form-preview {
    background-color: var(--color-background);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
}

.contact-form-preview h3 {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.contact-form-preview form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.contact-form-preview input,
.contact-form-preview textarea {
    padding: var(--spacing-md);
    border: 1px solid var(--color-light-gray);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-family-base);
    font-size: 1rem;
}

.contact-form-preview input:focus,
.contact-form-preview textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 86, 179, 0.1);
}

/* ====================================
 * 13. 响应式调整 (Responsive)
 * ==================================== */
@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .advantages,
    .products-preview,
    .applications-preview,
    .news-preview,
    .partners,
    .contact-preview,
    .fluid-manufacturing,
    .customizer,
    .digital-lab,
    .process-flow,
    .quality-dashboard {
        padding: var(--spacing-lg) 0;
    }
    
    .grid-2 {
        grid-template-columns: 1fr;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-4 {
        grid-template-columns: 1fr;
    }

    .customizer-panel {
        padding: var(--spacing-lg);
    }

    .customizer-buttons {
        flex-direction: column;
    }

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