/* ============================================ */
/* 通用基础样式 */
/* ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Noto Serif SC", "Songti SC", serif;
    background-color: #FAF8F5;
    color: #5D4037;
    line-height: 1.6;
    background-image: url('../images/bg.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
}

/* 页面内容容器半透明 */
.page-content {
    /*background-color: rgba(250, 248, 245, 0.95);*/
    min-height: calc(100vh - 160px);
}

/* ============================================ */
/* 通用导航栏样式 */
/* ============================================ */
nav {
    background-color: #3D2914;
    padding: 15px 0;
    position: relative;
    z-index: 100;
}

nav .nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
}

nav .nav-left, nav .nav-right {
    display: flex;
    gap: 40px;
}

nav a {
    color: #D4C4A8;
    text-decoration: none;
    font-size: 18px;
    transition: color 0.3s;
}

nav a:hover {
    color: #FFFFFF;
}

nav .logo {
    text-align: center;
}

nav .logo img {
    height: 50px;
}

/* ============================================ */
/* 通用页脚样式 */
/* ============================================ */
footer {
    background: linear-gradient(135deg, #3d2914 0%, #2a1f10 100%);
    padding: 30px;
    text-align: center;
    color: #D4C4A8;
    font-size: 13px;
    margin-top: 50px;
}

footer p {
    margin-bottom: 8px;
}

footer .copyright {
    font-size: 12px;
    color: #8B7B6B;
}

/* ============================================ */
/* 通用移动端菜单按钮 */
/* ============================================ */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: #D4C4A8;
    font-size: 28px;
    cursor: pointer;
    padding: 5px 10px;
    line-height: 1;
}

.mobile-menu-btn:focus {
    outline: none;
}

/* 移动端侧边菜单 */
.side-menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.side-menu-overlay.active {
    display: block;
    opacity: 1;
}

.side-menu {
    position: fixed;
    top: 0;
    left: -280px;
    width: 280px;
    height: 100%;
    background-color: #FFFFFF;
    z-index: 1000;
    transition: left 0.3s ease;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
}

.side-menu.active {
    left: 0;
}

.side-menu-header {
    background-color: #3D2914;
    padding: 20px;
    text-align: center;
}

.side-menu-header img {
    height: 45px;
}

.side-menu-links {
    padding: 20px;
    flex: 1;
}

.side-menu-links a {
    display: block;
    padding: 15px 20px;
    color: #5D4037;
    text-decoration: none;
    font-size: 16px;
    border-radius: 8px;
    margin-bottom: 8px;
    transition: background-color 0.3s;
}

.side-menu-links a:hover {
    background-color: rgba(139, 69, 19, 0.1);
    color: #8B4513;
}

/* ============================================ */
/* 响应式样式 */
/* ============================================ */
@media (max-width: 900px) {
    nav .nav-left, nav .nav-right {
        gap: 20px;
    }
    
    nav a {
        font-size: 12px;
    }
}

@media (max-width: 768px) {
    /* 移动端隐藏原有的导航链接 */
    nav .nav-left,
    nav .nav-right {
        display: none;
    }
    
    nav .nav-container {
        justify-content: space-between;
        padding: 0 20px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    nav .logo img {
        height: 40px;
    }
}