/* 全局样式 */
:root {
    --primary-color: #FFB800;
    --text-color: #333;
    --background-color: #fff;
    --section-padding: 80px 0;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

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

/* 导航栏样式 */
.navbar {
    background: var(--background-color);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-container img {
    height: 50px;
}

.company-name {
    font-size: 20px;
    color: var(--text-color);
    font-weight: 600;
    margin: 0;
}

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

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: var(--primary-color);
}

/* 首页横幅样式 */
.hero {
    background: linear-gradient(45deg, var(--primary-color), #FFD700);
    padding: 160px 0 80px;
    text-align: center;
    color: white;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.hero .subtitle {
    font-size: 1.5em;
    opacity: 0.9;
}

/* 关于我们样式 */
.about {
    padding: var(--section-padding);
    background: var(--background-color);
}

.about h2 {
    text-align: center;
    margin-bottom: 40px;
    color: var(--text-color);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: justify;
}

.about-content p {
    margin-bottom: 20px;
}

/* APP展示样式 */
.app-showcase {
    padding: var(--section-padding);
    background: #f9f9f9;
}

.app-showcase h2 {
    text-align: center;
    margin-bottom: 40px;
}

.app-images {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    justify-items: center;
}

.app-images img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.app-images img:hover {
    transform: translateY(-10px);
}

/* 联系我们样式 */
.contact {
    padding: var(--section-padding);
    background: var(--background-color);
}

.contact h2 {
    text-align: center;
    margin-bottom: 40px;
}

.contact-info {
    text-align: center;
}

.contact-info p {
    margin-bottom: 15px;
}

.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
}

/* 页脚样式 */
footer {
    background: #333;
    color: white;
    padding: 30px 0;
    text-align: center;
}

footer p {
    margin-bottom: 10px;
}

footer p:first-child {
    font-size: 14px;
    opacity: 0.9;
}

footer a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
    font-size: 14px;
}

footer a:hover {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .company-name {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .company-name {
        display: none;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero {
        padding: 120px 0 60px;
    }
    
    .hero h1 {
        font-size: 2em;
    }
    
    .hero .subtitle {
        font-size: 1.2em;
    }
    
    .app-images {
        grid-template-columns: 1fr;
    }
}