/* 通用样式 - 适用于所有页面 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* 顶部联系栏 */
.top-bar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 10px 0;
    font-size: 14px;
}

.top-bar .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-bar .phone {
    font-weight: bold;
}

/* 导航栏 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 18px;
    font-weight: bold;
    color: #667eea;
    text-decoration: none;
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu li a {
    color: #333;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: #667eea;
}

/* 手机端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #667eea;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background: #fff;
        flex-direction: column;
        padding: 80px 30px;
        transition: right 0.3s;
        box-shadow: -2px 0 10px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .top-bar .container {
        flex-direction: column;
        text-align: center;
        gap: 5px;
    }
}

/* 通用容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: #fff;
    padding: 40px 0 20px;
    margin-top: 60px;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    text-align: center;
}

.footer p {
    margin: 10px 0;
    color: #bdc3c7;
}

/* 通用按钮 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 5px;
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}