/* layout.css - 布局样式 */

/* 背景动画 */
#backgroundAnimation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(-45deg, #ff9a9e, #fad0c4, #a18cd1, #fbc2eb);
    background-size: 400% 400%;
    z-index: -1;
    animation: gradientAnimation 15s ease infinite;
}

@keyframes gradientAnimation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* 主体内容区域 */
#mainContent {
    margin-left: 220px; /* 与侧边栏宽度匹配 */
    transition: margin-left 0.3s;
}

#sidebar.collapsed ~ #mainContent {
    margin-left: 80px; /* 侧边栏收起时的宽度 */
}

main {
    padding: 20px 40px;
}

/* 顶部导航栏（移动端显示） */
#mobileHeader {
    display: none;
    position: fixed;
    top: 0;
    width: 100%;
    background-color: #fff;
    z-index: 1000;
    padding: 10px 20px;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#mobileHeader .mobile-logo a {
    text-decoration: none;
    font-size: 24px;
    color: #333;
    font-weight: 600;
}

#mobileHeader .mobile-logo span {
    color: #ff7e5f;
}

#mobileMenuToggle {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #333;
}

/* 移动端菜单 */
#mobileMenu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100%;
    background-color: #fff;
    z-index: 1000;
    transition: left 0.3s ease;
    overflow-y: auto;
    padding-top: 60px;
}

#mobileMenu.open {
    left: 0;
}

#mobileMenu .mobile-menu-list {
    list-style: none;
}

#mobileMenu .mobile-menu-list li {
    position: relative;
}

#mobileMenu .mobile-menu-list li a {
    display: block;
    padding: 15px 20px;
    color: #333;
    text-decoration: none;
    font-size: 18px;
    border-bottom: 1px solid #eee;
}

#mobileMenu .mobile-menu-list li a:hover {
    background-color: #f0f2f5;
}

#mobileMenu .mobile-menu-list .has-submenu > a::after {
    content: '\f078';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    right: 20px;
    font-size: 14px;
    transition: transform 0.3s;
}

#mobileMenu .mobile-menu-list .has-submenu.open > a::after {
    transform: rotate(180deg);
}

#mobileMenu .mobile-menu-list .submenu {
    display: none;
    list-style: none;
}

#mobileMenu .mobile-menu-list .submenu li a {
    padding-left: 40px;
    font-size: 16px;
}

#mobileMenu .mobile-menu-list .has-submenu.open .submenu {
    display: block;
}

/* 遮罩层 */
#overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(5px);
    z-index: 999;
    transition: opacity 0.3s ease;
}

/* 侧边栏（桌面端） */
#sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 220px;
    height: 100%;
    background-color: #fff;
    z-index: 998;
    overflow-y: auto;
    transition: width 0.3s;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
}

#sidebar.collapsed {
    width: 80px;
}

#sidebar .logo {
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
}

#sidebar .logo img {
    width: 40px;
    height: 40px;
    vertical-align: middle;
}

#sidebar .logo span {
    font-family: 'Pacifico', cursive;
    font-size: 24px;
    color: #333;
    font-weight: 600;
    margin-left: 10px;
}

#sidebar.collapsed .logo span {
    display: none;
}

#sidebar .sidebar-menu {
    margin-top: 20px;
}

#sidebar .sidebar-menu li {
    list-style: none;
    position: relative;
}

#sidebar .sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: background 0.3s;
    border-radius: 8px;
    margin: 5px 10px;
}

#sidebar .sidebar-menu li a:hover {
    background-color: #f0f2f5;
}

#sidebar .sidebar-menu li a i {
    font-size: 20px;
    margin-right: 15px;
    color: #ff7e5f;
    min-width: 20px;
    text-align: center;
}

#sidebar.collapsed .sidebar-menu li a span {
    display: none;
}

#sidebar.collapsed .sidebar-menu li a {
    justify-content: center;
}

#sidebar.collapsed .sidebar-menu li a i {
    margin-right: 0;
}

#sidebar .sidebar-menu .has-submenu > a .submenu-toggle {
    margin-left: auto;
    transition: transform 0.3s;
}

#sidebar .sidebar-menu .has-submenu.open > a .submenu-toggle {
    transform: rotate(180deg);
}

#sidebar .sidebar-menu .submenu {
    display: none;
    list-style: none;
}

#sidebar .sidebar-menu .submenu li a {
    padding-left: 50px;
}

#sidebar .sidebar-menu .has-submenu.open .submenu {
    display: block;
}

#sidebar.collapsed .sidebar-menu .has-submenu .submenu {
    display: none;
}

/* 侧边栏切换按钮 */
#sidebarToggle {
    position: fixed;
    left: 220px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255, 255, 255, 0.8);
    border: none;
    color: #333;
    padding: 10px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    z-index: 999;
    opacity: 0.7;
    transition: opacity 0.3s, left 0.3s, transform 0.3s;
}

#sidebarToggle:hover {
    background: rgba(255, 255, 255, 1);
    opacity: 1;
}

#sidebar.collapsed + #sidebarToggle {
    left: 80px;
}

#sidebar.collapsed + #sidebarToggle i {
    transform: rotate(180deg);
}

/* 页脚样式 */
footer {
    background-color: #333;
    padding: 30px 0;
    color: #fff;
    margin-left: 220px; /* 与主体内容对齐 */
    transition: margin-left 0.3s;
}

#sidebar.collapsed ~ footer {
    margin-left: 80px;
}

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

footer p {
    margin-bottom: 15px;
}

.social-icons a {
    color: #fff;
    font-size: 20px;
    margin: 0 10px;
    transition: color 0.3s;
}

.social-icons a:hover {
    color: #ff7e5f;
}