/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    line-height: 1.6;
    color: #333;
}

/* 导航栏样式 */
header {
    background: linear-gradient(to right, #1a237e, #283593);
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    text-align: left;
}

.logo {
    font-size: 1.4rem;
    font-weight: 600;
    color: #ffffff;
    letter-spacing: 0.5px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    font-family: 'Helvetica Neue', Arial, sans-serif;
}

.logo-slogan {
    font-size: 0.85rem;
    color: #e3f2fd;
    margin-top: 0.2rem;
    font-weight: 300;
}

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

.nav-links a {
    text-decoration: none;
    color: #e3f2fd;
    font-weight: 500;
    transition: all 0.3s;
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

.nav-links a:hover {
    color: #ffffff;
    background: rgba(255,255,255,0.1);
}

/* Hero 区域样式 */
.hero {
    background: linear-gradient(135deg, #3498db, #2c3e50);
    padding: 8rem 2rem 4rem;
    text-align: center;
    color: white;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

.hero-subtitle-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

/* 产品介绍区域样式 */
.products {
    padding: 4rem 2rem;
    background: #f8f9fa;
}

.products-content {
    max-width: 1200px;
    margin: 0 auto;
}

.products h2 {
    text-align: center;
    margin-bottom: 3rem;
    color: #2c3e50;
}

.product-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.product-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s;
}

.product-item:hover {
    transform: translateY(-5px);
}

.product-item h3 {
    color: #2c3e50;
    margin-bottom: 1rem;
}

.products-image {
    text-align: center;
    margin-bottom: 3rem;
}

.celebration-image {
    max-width: 300px;
    height: auto;
    margin: 0 auto;
    animation: float 6s ease-in-out infinite;
}

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

/* 按钮样式 */
.cta-button, .primary-button {
    display: inline-block;
    padding: 1rem 2rem;
    background: #e74c3c;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.cta-button:hover, .primary-button:hover {
    background: #c0392b;
}

.product-cta {
    text-align: center;
}

/* 服务优势区域样式 */
.services {
    padding: 4rem 2rem;
    background: white;
}

.services-content {
    max-width: 1200px;
    margin: 0 auto;
}

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

/* 特色区域样式 */
.feature-section {
    background: linear-gradient(135deg, #2c3e50, #3498db);
    color: white;
    padding: 4rem 2rem;
    text-align: center;
}

.feature-content {
    max-width: 800px;
    margin: 0 auto;
}

.secondary-button {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background: transparent;
    border: 2px solid white;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    margin-top: 1.5rem;
    transition: all 0.3s;
}

.secondary-button:hover {
    background: white;
    color: #2c3e50;
}

/* 页脚样式 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 2rem;
    text-align: center;
}

.footer a {
    color: #3498db;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* 响应式设计 */
@media (max-width: 768px) {
    nav {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-links {
        flex-direction: column;
        text-align: center;
        gap: 0.5rem;
        width: 100%;
    }
    
    .nav-links a {
        display: block;
        padding: 0.8rem;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle-container {
        flex-direction: column;
    }
    
    .dot {
        display: none;
    }
}