/* 签证网站主样式文件 */
:root {
    --visa-primary-color: #1e88e5;
    --visa-secondary-color: #0d47a1;
    --visa-accent-color: #ff6f00;
    --visa-text-color: #333;
    --visa-bg-color: #f5f5f5;
    --visa-border-color: #e0e0e0;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Microsoft YaHei", "微软雅黑", sans-serif;
    color: var(--visa-text-color);
    background-color: #fff;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

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

/* 导航栏样式 */
.visa-navbar {
    background: linear-gradient(135deg, var(--visa-primary-color) 0%, var(--visa-secondary-color) 100%);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 0.5rem 0;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.visa-navbar .navbar-brand {
    color: #fff !important;
    font-weight: 600;
    font-size: 1.25rem;
    text-decoration: none;
    display: flex;
    align-items: center;
}

.visa-navbar .navbar-brand i {
    margin-right: 8px;
    font-size: 1.3rem;
}

.visa-navbar .navbar-nav {
    display: flex;
    flex-direction: row;
    list-style: none;
    margin: 0;
    padding: 0;
}

.visa-navbar .navbar-nav .nav-link {
    color: rgba(255,255,255,0.9) !important;
    padding: 0.5rem 1rem;
    text-decoration: none;
    transition: all 0.3s;
    display: block;
}

.visa-navbar .navbar-nav .nav-link:hover {
    color: #fff !important;
    background-color: rgba(255,255,255,0.1);
    border-radius: 4px;
}

.visa-navbar .navbar-toggler {
    border: 1px solid rgba(255,255,255,0.5);
    padding: 0.25rem 0.5rem;
    background: transparent;
}

.visa-navbar .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.85%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
    width: 30px;
    height: 30px;
}

.visa-navbar .navbar-collapse {
    flex-grow: 0;
}

/* 页脚样式 */
footer {
    background: #f8f9fa;
    padding: 40px 0 20px;
    margin-top: 60px;
    border-top: 1px solid #e9ecef;
}

footer .text-muted {
    color: #6c757d !important;
}

footer a {
    color: #6c757d;
    text-decoration: none;
}

footer a:hover {
    color: var(--visa-primary-color);
    text-decoration: underline;
}

/* 工具类 */
.text-center {
    text-align: center;
}

.text-md-start {
    text-align: left;
}

.text-md-end {
    text-align: right;
}

.mt-5 {
    margin-top: 3rem;
}

.py-4 {
    padding-top: 1.5rem;
    padding-bottom: 1.5rem;
}

.mb-0 {
    margin-bottom: 0;
}

.mb-4 {
    margin-bottom: 1.5rem;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .visa-navbar {
        padding: 0.5rem 0;
    }
    
    .visa-navbar .navbar-nav {
        flex-direction: column;
        margin-top: 1rem;
    }
    
    .visa-navbar .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .text-md-start {
        text-align: center;
    }
    
    .text-md-end {
        text-align: center;
    }
    
    .container {
        padding: 0 15px;
    }
}

@media (min-width: 769px) {
    .text-md-start {
        text-align: left;
    }
    
    .text-md-end {
        text-align: right;
    }
}

/* 响应式工具类 */
@media (max-width: 576px) {
    .container {
        padding: 0 10px;
    }
}