/* navigation-mobile.css - 移动端导航栏样式 */
/* 导入字体 */
@import url("https://cdn-font.hyperos.mi.com/font/css?family=MiSans_Latin_VF:VF:Latin&display=swap");
@import url("https://cdn-font.hyperos.mi.com/font/css?family=MiSans_VF:VF:Chinese_Simplify,Latin&display=swap");
@import url("https://cdn-font.hyperos.mi.com/font/css?family=MiSans:100,200,300,400,450,500,600,650,700,900:Chinese_Simplify,Latin&display=swap");
@import url("https://cdn-font.hyperos.mi.com/font/css?family=Misans_TC_VF:VF:Chinese_Traditional_TW&display=swap");

/* CSS变量定义 */
:root {
    --primary-color: #9e94d8;
    --secondary-color: #333333;
    --background-color: #f2eefc;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-bg-hover: rgba(255, 255, 255, 0.9);
    --text-color: #444444;
    --text-secondary: #666666;
    --online-color: #00BFA6;
    --nav-bg: rgba(109, 91, 154, 0.8);
    --nav-bg-scroll: rgba(109, 91, 154, 0.95);
    --button-hover: #b6ade6;
    --accent-color: #f59e0b;
    --glass-bg: rgba(255, 255, 255, 0.6);
    --glass-border: rgba(158, 148, 216, 0.3);
    --shadow-color: rgba(109, 91, 154, 0.2);
    --shadow-hover: rgba(109, 91, 154, 0.3);
    
    /* 支持系统主题 */
    color-scheme: light dark;
}

/* 深色主题变量 */
.dark-theme {
    --primary-color: #a78bfa;
    --secondary-color: #f1f5f9;
    --background-color: #0f172a;
    --background-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, #334155 100%);
    --card-bg: #1e293b;
    --card-bg-hover: #334155;
    --text-color: #e2e8f0;
    --text-secondary: #cbd5e1;
    --online-color: #10b981;
    --nav-bg: rgba(15, 23, 42, 0.8);
    --nav-bg-scroll: #1e293b;
    --button-hover: #c4b5fd;
    --accent-color: #f59e0b;
    --glass-bg: rgba(30, 41, 59, 0.6);
    --glass-border: rgba(71, 85, 105, 0.3);
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-hover: rgba(0, 0, 0, 0.4);
}

/* 系统深色主题自动应用 */
@media (prefers-color-scheme: dark) {
    :root:not(.dark-theme) {
        --primary-color: #a78bfa;
        --secondary-color: #f1f5f9;
        --background-color: #0f172a;
        --card-bg: #1e293b;
        --text-color: #e2e8f0;
        --nav-bg: rgba(15, 23, 42, 0.8);
        --nav-bg-scroll: #1e293b;
        --button-hover: #c4b5fd;
    }
    
    :root:not(.dark-theme) nav {
        background-color: var(--nav-bg) !important;
    }
    
    :root:not(.dark-theme) nav a {
        color: #e2e8f0 !important;
    }
    
    :root:not(.dark-theme) nav a:hover {
        color: var(--button-hover) !important;
    }
}

/* 移动端导航栏样式 - 仅在移动端生效 */
@media (max-width: 896px) {
    /* 汉堡菜单按钮 */
    .menu-button {
        display: block;
        position: absolute;
        right: 20px;
        top: 19.4px;
        color: white;
        font-size: 1.1em;
        cursor: pointer;
        z-index: 102;
    }
    
    /* 移动端主题切换按钮 - 放在汉堡菜单左边 */
    .nav-theme-toggle {
        position: absolute;
        right: 70px; /* 汉堡菜单右边20px + 按钮宽度40px + 间距10px */
        top: 19.4px;
        z-index: 102;
    }
    
    .nav-theme-toggle .theme-toggle-btn {
        width: 35px;
        height: 35px;
        font-size: 14px;
    }
    
    /* 导航链接容器 - 移动端隐藏 */
    .nav-links {
        display: none;
    }
    
    /* 响应式导航链接 - 点击汉堡菜单后显示 */
    .nav-links.responsive {
        display: block;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--nav-bg-scroll);
        padding: 20px;
        flex-direction: column;
        z-index: 101;
    }
    
    /* 移动端导航链接样式 */
    .nav-links.responsive a:not(.dropdown-toggle):not(.dropdown-item) {
        display: block;
        margin: 10px 0;
        color: white;
        font-size: 1.2em;
        font-weight: bold;
        text-align: left;
        pointer-events: auto;
    }
    
    /* 移动端下拉菜单容器 */
    .nav-links.responsive .dropdown {
        display: block;
        width: 100%;
    }
    
    /* 移动端下拉菜单切换按钮 */
    .nav-links.responsive .dropdown-toggle {
        display: flex;
        align-items: center;
        padding: 10px 0;
        color: white;
        font-size: 1.2em;
        font-weight: bold;
        text-align: left;
        pointer-events: auto;
    }
    
    /* 移动端隐藏下拉菜单图标 */
    .nav-links.responsive .dropdown-toggle .menu-icon {
        display: none;
    }
    
    /* 移动端下拉菜单 */
    .nav-links.responsive .dropdown-menu {
        display: block;
        position: static;
        width: 100%;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background-color: transparent;
    }
    
    /* 移动端下拉菜单项 */
    .nav-links.responsive .dropdown-item {
        display: block;
        padding: 8px 0 8px 15px;
        color: white;
        font-size: 0.8em;
        font-weight: normal;
        text-align: left;
        pointer-events: auto;
        opacity: 1;
        transform: none;
    }
    
    /* 隐藏桌面版导航链接 */
    nav a:not(.logo-and-text) {
        display: none;
    }
    
    /* 移动端Logo容器调整 */
    .logo-container {
        margin-left: 15px;
    }
    
    .logo-container img {
        height: 45px;
        width: auto;
    }
    
    /* 移动端Logo文字调整 */
    .logo-and-text {
        font-size: 1em;
        margin-left: 10px;
    }
    
    /* 移动端导航栏高度调整 */
    nav {
        height: 70px;
        padding: 10px 15px;
    }
    
    /* 移动端导航栏背景调整 */
    nav {
        background-color: var(--nav-bg);
    }
    
    nav.scrolled {
        background: var(--nav-bg-scroll);
        box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    }
}

/* 超小屏幕优化 (480px以下) */
@media (max-width: 480px) {
    /* 进一步缩小Logo */
    .logo-container img {
        height: 40px;
    }
    
    /* 调整导航栏高度 */
    nav {
        height: 65px;
        padding: 8px 10px;
    }
    
    /* 调整汉堡菜单按钮位置 */
    .menu-button {
        right: 15px;
        top: 17px;
        font-size: 1em;
    }
    
    /* 调整主题切换按钮位置 */
    .nav-theme-toggle {
        right: 60px;
        top: 17px;
    }
    
    .nav-theme-toggle .theme-toggle-btn {
        width: 30px;
        height: 30px;
        font-size: 12px;
    }
    
    /* 调整响应式导航链接间距 */
    .nav-links.responsive {
        padding: 15px;
    }
    
    .nav-links.responsive a:not(.dropdown-toggle):not(.dropdown-item) {
        margin: 8px 0;
        font-size: 1.1em;
    }
    
    .nav-links.responsive .dropdown-toggle {
        padding: 8px 0;
        font-size: 1.1em;
    }
    
    .nav-links.responsive .dropdown-item {
        padding: 6px 0 6px 12px;
        font-size: 0.9em;
    }
}

/* 深色主题移动端适配 */
@media (max-width: 896px) {
    .dark-theme nav {
        background-color: var(--nav-bg);
    }
    
    .dark-theme nav.scrolled {
        background: var(--nav-bg-scroll);
    }
    
    .dark-theme .nav-links.responsive {
        background: var(--nav-bg-scroll);
    }
    
    .dark-theme .nav-links.responsive a:not(.dropdown-toggle):not(.dropdown-item) {
        color: #e2e8f0;
    }
    
    .dark-theme .nav-links.responsive .dropdown-toggle {
        color: #e2e8f0;
    }
    
    .dark-theme .nav-links.responsive .dropdown-item {
        color: #e2e8f0;
    }
    
    .dark-theme .nav-links.responsive .dropdown-item:hover {
        background: rgba(71, 85, 105, 0.2);
        color: var(--button-hover);
    }
}