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

body {
    font-family: 'Inter', sans-serif;
    background-color: #0a0e17;
    color: #ffffff;
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏 */
.navbar {
    background-color: rgba(10, 14, 23, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(45, 55, 72, 0.5);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-links a {
    color: #a0aec0;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #667eea;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: #a0aec0;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 首页横幅 */
.hero {
    padding: 10rem 0 8rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 50%, rgba(102, 126, 234, 0.1) 0%, transparent 50%);
    z-index: -1;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h2 {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero-content .highlight {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-content p {
    font-size: 1.2rem;
    color: #a0aec0;
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
}

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

.primary-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

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

.secondary-btn:hover {
    background-color: rgba(102, 126, 234, 0.1);
    transform: translateY(-2px);
}

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

.visual-box {
    width: 300px;
    height: 300px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    border: 1px solid rgba(102, 126, 234, 0.3);
    border-radius: 20px;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.visual-box::before {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 30px;
    z-index: -1;
}

@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(5deg);
    }
    100% {
        transform: translateY(0px) rotate(0deg);
    }
}

/* 通用部分样式 */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #ffffff 0%, #a0aec0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.1rem;
    color: #a0aec0;
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about {
    padding: 6rem 0;
    background-color: #10141c;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(102, 126, 234, 0.5) 50%, transparent 100%);
}

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

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.about-text p {
    color: #a0aec0;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.2);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-label {
    color: #a0aec0;
    font-size: 1rem;
}

/* 服务 */
.services {
    padding: 6rem 0;
}

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

.service-card {
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(16, 20, 28, 0.8) 0%, rgba(20, 25, 35, 0.8) 100%);
    border: 1px solid rgba(45, 55, 72, 0.5);
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.15);
}

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #667eea;
}

.service-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.service-card p {
    color: #a0aec0;
    line-height: 1.7;
}

/* 产品 */
.products {
    padding: 6rem 0;
    background-color: #10141c;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.product-card {
    background: linear-gradient(135deg, rgba(16, 20, 28, 0.8) 0%, rgba(20, 25, 35, 0.8) 100%);
    border: 1px solid rgba(45, 55, 72, 0.5);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.product-card:hover {
    transform: translateY(-5px);
    border-color: rgba(102, 126, 234, 0.5);
    box-shadow: 0 15px 35px rgba(102, 126, 234, 0.2);
}

.product-image {
    height: 200px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    border-bottom: 1px solid rgba(45, 55, 72, 0.5);
}

.product-info {
    padding: 2rem;
}

.product-info h3 {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #ffffff;
}

.product-info p {
    color: #a0aec0;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.product-link {
    display: inline-flex;
    align-items: center;
    color: #667eea;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.product-link:hover {
    color: #764ba2;
}

.product-link::after {
    content: '→';
    margin-left: 5px;
    transition: margin-left 0.3s ease;
}

.product-link:hover::after {
    margin-left: 10px;
}

/* 联系我们 */
.contact {
    padding: 6rem 0;
}

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

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

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(16, 20, 28, 0.8) 0%, rgba(20, 25, 35, 0.8) 100%);
    border: 1px solid rgba(45, 55, 72, 0.5);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.contact-item svg {
    color: #667eea;
    margin-top: 5px;
}

.contact-item h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #ffffff;
}

.contact-item p {
    color: #a0aec0;
}

.contact-form {
    padding: 2.5rem;
    background: linear-gradient(135deg, rgba(16, 20, 28, 0.8) 0%, rgba(20, 25, 35, 0.8) 100%);
    border: 1px solid rgba(45, 55, 72, 0.5);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(45, 55, 72, 0.5);
    border-radius: 10px;
    color: #ffffff;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #a0aec0;
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

/* 页脚 */
.footer {
    background-color: #10141c;
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(45, 55, 72, 0.5);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo h2 {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: #a0aec0;
}

.footer-links h3,
.footer-contact h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: #ffffff;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-links a {
    color: #a0aec0;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: #667eea;
    padding-left: 5px;
}

.footer-contact p {
    color: #a0aec0;
    margin-bottom: 1rem;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(45, 55, 72, 0.5);
    color: #a0aec0;
    font-size: 0.9rem;
}

.footer-bottom .icp-record {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    opacity: 0.8;
}

.footer-bottom .icp-record a {
    color: inherit;
    text-decoration: none;
    transition: opacity 0.3s ease;
}

.footer-bottom .icp-record a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* 模态框样式 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: linear-gradient(135deg, rgba(16, 20, 28, 0.95) 0%, rgba(20, 25, 35, 0.95) 100%);
    margin: 15% auto;
    padding: 2rem;
    border: 1px solid rgba(102, 126, 234, 0.5);
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px) scale(0.9);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.modal-content p {
    color: #a0aec0;
    margin-bottom: 1.5rem;
    line-height: 1.7;
}

.modal-content .email {
    font-size: 1.2rem;
    font-weight: 600;
    color: #667eea;
    margin: 1rem 0;
}

.close-modal {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.close-modal:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.6);
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container,
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-content h2 {
        font-size: 2.5rem;
    }

    .hero-visual {
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        flex-direction: column;
        background-color: rgba(10, 14, 23, 0.95);
        backdrop-filter: blur(10px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        padding: 2rem 0;
        border-bottom: 1px solid rgba(45, 55, 72, 0.5);
    }

    .nav-links.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .about-stats {
        grid-template-columns: 1fr;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 8rem 0 6rem;
    }

    .hero-content h2 {
        font-size: 1.8rem;
    }

    .about,
    .services,
    .products,
    .contact {
        padding: 4rem 0;
    }

    .service-card,
    .product-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
}

/* 滚动动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}