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

html {
    scroll-behavior: smooth;
}

.card-link {
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.card-link:focus-visible {
    outline: 3px solid #00d4ff;
    outline-offset: 4px;
}

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

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

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo h2 {
    color: #00d4ff;
    font-weight: 600;
    font-size: 1.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover {
    color: #00d4ff;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #00d4ff;
    transition: width 0.3s ease;
}

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

/* 下拉菜单样式 */
.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(10px);
    min-width: 200px;
    list-style: none;
    padding: 10px 0;
    margin: 0;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: block;
    padding: 12px 20px;
    color: #fff;
    text-decoration: none;
    font-weight: 400;
    transition: all 0.3s ease;
    border-radius: 4px;
    margin: 2px 8px;
}

.dropdown-menu a:hover {
    background: rgba(0, 212, 255, 0.1);
    color: #00d4ff;
    transform: translateX(5px);
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅样式 */
.hero {
    height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(30, 41, 59, 0.9) 50%, rgba(51, 65, 85, 0.9) 100%), url('images/WADZtE6jSVum.webp');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 1000"><defs><pattern id="grid" width="50" height="50" patternUnits="userSpaceOnUse"><path d="M 50 0 L 0 0 0 50" fill="none" stroke="%23334155" stroke-width="1" opacity="0.3"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(0, 212, 255, 0.1) 0%, rgba(15, 23, 42, 0.8) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-text {
    color: #fff;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, #00d4ff 0%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    color: #cbd5e1;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: #00d4ff;
}

.stat-label {
    font-size: 0.9rem;
    color: #94a3b8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #00d4ff 0%, #0ea5e9 100%);
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 212, 255, 0.3);
}

.btn-secondary {
    background: transparent;
    color: #00d4ff;
    border: 2px solid #00d4ff;
}

.btn-secondary:hover {
    background: #00d4ff;
    color: #0f172a;
}

/* 浮动元素 */
.hero-visual {
    position: relative;
    height: 400px;
}

.floating-elements {
    position: relative;
    width: 100%;
    height: 100%;
}

.floating-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 1.5rem;
    color: #fff;
    text-align: center;
    animation: float 6s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 20%;
    animation-delay: 2s;
}

.card-3 {
    bottom: 20%;
    left: 30%;
    animation-delay: 4s;
}

.card-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

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

/* 通用区块样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #0f172a 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: #64748b;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们样式 */
.about {
    padding: 6rem 0;
    background: #f8fafc;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

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

.about-card {
    background: #fff;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #00d4ff;
    transition: transform 0.3s ease;
}

.about-card:hover {
    transform: translateX(10px);
}

.about-card h3 {
    color: #0f172a;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.about-image {
    position: relative;
}

.image-placeholder {
    width: 100%;
    height: 400px;
    background: url('images/GXMyEHMmW1F7.jpg');
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748b;
    font-size: 1.1rem;
    background-size: cover;
    background-position: center;
}

/* 产品服务样式 */
.products {
    padding: 6rem 0;
    background: #fff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.product-card {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #e2e8f0;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.product-image {
    height: 200px;
    background-size: cover;
    background-position: center;
}

#product-1 {
    background-image: url('images/nM6UChN62x4C.jpg');
}

#product-2 {
    background-image: url('images/bejZhQ7CGTmj.jpg');
}

#product-3 {
    background-image: url('images/4VMo2riRgnQW.jpg');
}

.product-content {
    padding: 2rem;
}

.product-content h3 {
    color: #0f172a;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.product-content p {
    color: #64748b;
    margin-bottom: 1.5rem;
}

.product-content ul {
    list-style: none;
}

.product-content li {
    color: #00d4ff;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.product-content li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #00d4ff;
    font-weight: bold;
}

/* 技术实力样式 */
.technology {
    padding: 6rem 0;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: #fff;
}

.technology .section-title {
    color: #fff;
    background: linear-gradient(135deg, #fff 0%, #00d4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.technology .section-subtitle {
    color: #cbd5e1;
}

.tech-content {
    display: flex;
    flex-direction: column;
    gap: 4rem;
}

.tech-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.tech-stat {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    transition: transform 0.3s ease;
}

.tech-stat:hover {
    transform: translateY(-5px);
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #00d4ff;
    margin-bottom: 0.5rem;
}

.stat-desc {
    color: #cbd5e1;
}

.tech-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tech-feature {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-image {
    height: 150px;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    background-size: cover;
    background-position: center;
}

#tech-1 {
    background-image: url('images/udX0P0G2NKVO.webp');
}

#tech-2 {
    background-image: url('images/EwQVbJTa819j.jpg');
}

#tech-3 {
    background-image: url('images/pwib0aPn4FVB.png');
}

.tech-feature h4 {
    color: #00d4ff;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* 生产基地样式 */
.factory {
    padding: 6rem 0;
    background: #f8fafc;
}

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

.factory-gallery {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.gallery-main {
    height: 300px;
    border-radius: 16px;
    background-size: cover;
    background-position: center;
}

#factory-main {
    background-image: url('images/YAL1jQi3jsVc.jpg');
}

.gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
}

.thumb-item {
    height: 80px;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.3s ease;
    background-size: cover;
    background-position: center;
}

#factory-thumb-1 {
    background-image: url('images/ng15f9ARhd5H.jpg');
}

#factory-thumb-2 {
    background-image: url('images/mUErLH8OqNUq.jpg');
}

#factory-thumb-3 {
    background-image: url('images/zXmrM1JbXGnV.jpg');
}

#factory-thumb-4 {
    background-image: url('images/7OuIoEYFjUSK.jpg');
}

.thumb-item:hover {
    transform: scale(1.05);
}

.factory-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-card {
    background: #fff;
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border-left: 4px solid #00d4ff;
}

.info-card h4 {
    color: #0f172a;
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

/* 联系我们样式 */
.contact {
    padding: 6rem 0;
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    padding: 2rem;
    background: #f8fafc;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
}

.contact-icon {
    font-size: 2rem;
    background: linear-gradient(135deg, #00d4ff 0%, #0ea5e9 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-details h4 {
    color: #0f172a;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: #64748b;
    margin-bottom: 0.5rem;
}

.contact-form {
    background: #f8fafc;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid #e2e8f0;
}

.contact-form h3 {
    color: #0f172a;
    margin-bottom: 2rem;
    text-align: center;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #00d4ff;
}

/* 页脚样式 */
.footer {
    background: #0f172a;
    color: #fff;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    color: #00d4ff;
    margin-bottom: 1rem;
}

.footer-section p,
.footer-section li {
    color: #cbd5e1;
    margin-bottom: 0.5rem;
}

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

.footer-section a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: #00d4ff;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border-radius: 8px;
    transition: background 0.3s ease;
}

.social-link:hover {
    background: rgba(0, 212, 255, 0.2);
}

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #94a3b8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: rgba(15, 23, 42, 0.95);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .about-content,
    .contact-content,
    .factory-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .tech-stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tech-stats {
        grid-template-columns: 1fr;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
}