/* css/main.css */
/* 基础重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
a {
    text-decoration: none;
}
:root {
	--primary-color: #2B4166;
    --accent-color: #E54B4B;
    --text-dark: #333333;
    --text-light: #FFFFFF;
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
body {
    font-family: 'Roboto', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
}

/* 导航系统 */
.main-header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.branding {
    margin-left:-40px;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 48px;
    height: 48px;
}

.brand-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-group {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.primary-nav {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    padding: 0.5rem 1rem;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width var(--transition-base), left var(--transition-base);
}

.nav-link:hover::after {
    width: 100%;
    left: 0;
}

/* 主视觉区 */
.hero-section {
    height: 50vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: url('../img/photos/2018082217115526.jpg') center/cover;
    color: var(--text-light);
    text-align: center;
    padding-top: 80px;
}

.hero-content {
    position: relative;
    z-index: 100;
    width: 100%;
    max-width: 1200px;
    padding: 2rem;
    margin: 0 auto;
    text-align: center;
    /*opacity: 50%;*/
    /* 初始状态 */
    transform: translateY(30px);
    transition: all 0.8s ease 0.3s;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    /*opacity: 50%;*/
    transform: translateY(30px);
}

.highlight {
    color: var(--accent-color);
    position: relative;
    display: inline-block;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: -0.2em;
    left: 0;
    width: 100%;
    height: 2px;
    background: currentColor;
}


.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    /*opacity: 50%;*/
    transform: translateY(20px);
}

/* 新增CSS内容 */
.hero-actions {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .nav-group {
        display: none;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
}
/* 产品系列模块 */
.product-series {
    margin-bottom: 6rem;
}

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

.section-title {
    font-size: 2.5rem;
    color: var(--primary-color);
    position: relative;
    margin-bottom: 1rem;
}

.section-title::after {
    text-align: left;
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: var(--accent-color);
    margin: 1rem auto;
}

.product-grid {
    display:grid;
	gap: 2rem;
    grid-template-columns:repeat(auto-fit,minmax(320px,1fr));
	align-items: start;
    justify-content: center;
	grid-auto-rows: minmax(100px, auto);
    overflow-x: hidden;
}

.product-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: transform 0.3s var(--transition-base);
}

.product-media {
    position: relative;
    height: 280px;
    overflow: hidden;
}

.product-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.tech-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--accent-color);
    color: #fff;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* 技术优势模块 */
.tech-advantage {
    background: linear-gradient(to right, #f8f9fa 50%, #ffffff 50%);
    padding: 1rem 0;
    margin-top: 20px;
}

.advantage-container {
    display: grid;
    gap: 4rem;
    max-width: 1280px;
    grid-template-columns: 1fr 1fr;
    /* 建议补充 ↓ */
    padding: 0 2rem; /* 避免内容溢出 */
    align-items: start; /* 控制对齐 */
    margin: 100px auto 0;
}
.advantage-content {
    padding-left: 2rem;
}

.advantage-list {
    display: grid;
    gap: 2rem;
    margin-top: 2rem;
}

.advantage-item {
    display: flex;
    gap: 1.5rem;
    padding: 2rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

/* 应用案例模块 */
.case-studies {
    margin-top: 6rem;
}

.case-grid {
    height:500px;
    margin-left:50px;
    margin-right:50px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	grid-auto-rows: minmax(200px, auto);
    object-fit: contain;
	
}
.case-image {
    width: 100%;
    height: 100%;
}
.case-image-img{
    width: 100%;
    height: 100%;
    object-fit: contain;
}
.case-card {
    border-radius: 8px;
    overflow: hidden;
    position: relative;
}



.case-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    color: #fff;
    padding: 2rem;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

@media (max-width: 1024px) {
    .nav-group {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
    }
    .nav-group.active {
        display: block;
    }
}
.equipment-video {
    min-height: 300px;
    background: #f0f0f0;
}

[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate].active {
    opacity: 1;
    transform: translateY(0);
}

/* 案例卡片单独设置 */
.case-card[data-animate="fadeIn"] {
    transition: all 0.6s ease; /* 保持原有过渡效果 */
}
.spec-list{
    list-style-type:none;
    padding-left: 0;
}
.spec-icon {
    width: 160px;
    background-image: url("img/logo.png");
    height: 35px;
}
/* 新增动画关键帧 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 案例展示动画修复 */
.case-card[data-animate="fadeIn"] {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.case-card.active {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* 产品分类样式 */
.product-categories {
    padding: 6rem 2rem;
    background: #f8f9fa;
}

.category-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.category-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover .overlay {
    opacity: 1;
}

.main-footer {
    background: var(--primary-color);
    color: var(--text-light);
    padding: 4rem 0;
    margin-top: 6rem;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.footer-brand {
    max-width: 300px;
}

.footer-nav {
    display: flex;
    gap: 4rem;
    flex-wrap: wrap;
}

.footer-col h4 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

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

.footer-col a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: opacity var(--transition-base);
}

.footer-col a:hover {
    opacity: 0.8;
}

.copyright {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 3rem;
    opacity: 0.7;
}
/* 独立控制卡片入场动画 */
.case-card.active {
    opacity: 1;
    transform: translateY(0);
}

/* 独立控制说明文字动画 */
.case-caption {
    transform: translateY(100%);
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s; /* 添加0.3s延迟 */
}

.case-card.active .case-caption {
    transform: translateY(0);
}

.case-image img {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
    filter: saturate(0.9) brightness(0.95);
}

/* 点击涟漪效果 */
.case-image:active::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.4) 10%, transparent 80%);
    transform: translate(-50%, -50%) scale(0);
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    from {
        transform: translate(-50%, -50%) scale(0);
        opacity: 1;
    }
    to {
        transform: translate(-50%, -50%) scale(2);
        opacity: 0;
    }
}

/* 选中态指示器 */
.case-card.active img {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
}
.nav-container-head{
    text-decoration: none;
}

/* 在CSS中添加以下样式 2025.3.6.10.16 */
.product-link {
    display: block;
    position: relative;
    height: 100%;
    overflow: hidden;
    transition: transform 0.3s var(--transition-base);
}

.product-link:hover {
    transform: translateZ(20px) rotateX(3deg) rotateY(2deg);
    box-shadow: 0 12px 24px rgba(0,0,0,0.2);
}

.product-link:hover .hover-overlay {
    opacity: 1;
}

.zoom-icon {
    font-size: 2rem;
    transform: scale(0.8);
    transition: all 0.3s var(--transition-base);
}

.view-text {
    color: white;
    font-weight: 500;
    margin-top: 0.5rem;
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.3s var(--transition-base);
}
.product-link{
    color: #2b2f32;
}
.product-link:hover .zoom-icon {
    transform: scale(1.2);
}

.product-link:hover .view-text {
    transform: translateY(0);
    opacity: 1;
}

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

.product-image {
    transition:
            transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
            filter 0.3s ease;
}

.product-link:hover .product-image {
    transform: scale(1.08);
    filter: brightness(1.1);
}
/* 在CSS中添加以下样式 */
.product-link {
    display: block;
    position: relative;
    height: 100%;
    overflow: hidden;
    transition:
            box-shadow 0.3s var(--transition-base),
            transform 0.3s var(--transition-base);
}

.footer-logo {
    width: 40px;
    margin-bottom: 1rem;
}

/* 移除3D变换相关代码 */
.product-link:hover {
    /* 移除translateZ/rotateX/rotateY */
    box-shadow: 0 8px 20px rgba(0,0,0,0.15);
    transform: scale(1);
}

/* 移除perspective设置 */
.product-card {
    /* 删除perspective: 1000px; */
}

/* 其他保持不变的样式 */
.hover-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(43, 65, 102, 0);
    display: flex;
    transition: background 0.3s var(--transition-base);
}

.product-link:hover .hover-overlay {
    background: rgba(43, 65, 102, 0.8);
}

.product-image {
    transition:
            transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
            filter 0.3s ease;
}

.product-link:hover .product-image {
    transform: scale(1.05); /* 加强缩放效果补偿 */
    filter: brightness(1.1);
}

/* 新增动画关键帧 */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* 案例展示动画修复 */
.case-card[data-animate="fadeIn"] {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.case-card.active {
    opacity: 1;
    transform: translateY(0);
}

/* 产品分类样式 */
.product-categories {
    padding: 6rem 2rem;
    background: #f8f9fa;
}

.category-grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.category-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    color: white;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.category-card:hover .overlay {
    opacity: 1;
}


/* 新增页脚样式 */
.main-footer {
    background: var(--primary-color);
    color: rgba(255,255,255,0.8);
    padding: 4rem 0 2rem;
    position: relative;
}

.footer-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 3rem;
    position: relative;
}

.footer-col h4 {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    position: relative;
}

.footer-col h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent-color);
}

.footer-col ul {
    list-style: none;
    padding: 0;
}

.footer-col li {
    margin-bottom: 0.8rem;
}

.footer-col a {
    color: rgba(255,255,255,0.7);
    transition: all var(--transition-base);
}

.footer-col a:hover {
    color: var(--text-light);
    padding-left: 0.5rem;
}

.footer-brand .footer-logo {
    width: 120px;
    margin-bottom: 1.5rem;
}

.company-description {
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.contact-info i {
    width: 20px;
    margin-right: 0.5rem;
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin: 1.5rem 0;
}

.social-icon {
    font-size: 1.4rem;
    color: rgba(255,255,255,0.7);
    transition: all var(--transition-base);
}

.social-icon:hover {
    color: var(--text-light);
    transform: translateY(-2px);
}

.qrcode {
    border-left: 2px solid rgba(255,255,255,0.1);
    padding-left: 1rem;
}

.qrcode img {
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: 8px;
}


.copyright p {
    font-size: 0.85rem;
    margin: 0.5rem 0;
    color: rgba(255,255,255,0.6);
}

.divider {
    height: 1px;
    background: rgba(255,255,255,0.1);
    margin: 2rem 0;
}
.copyright {
    grid-column: 1 / -1;
    text-align: center;
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
}


@media (max-width: 768px) {
    .footer-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-col {
        border-bottom: 1px solid rgba(255,255,255,0.1);
        padding-bottom: 2rem;
    }

    .social-links {
        justify-content: center;
    }
}