/* 全局基础样式 + 黑白模式变量（与index.html统一） */
:root {
    --primary: #0066cc;
    --primary-dark: #004a99;
    --bg-white: #fff;
    --bg-gray: #f5f7fa;
    --text-main: #1d2129;
    --text-secondary: #666;
    --border: #eee;
    --shadow: 0 5px 15px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
    --radius: 4px;
    --radius-lg: 8px;
}
.dark-mode {
    --primary: #8ab4f8;
    --primary-dark: #5f99f7;
    --bg-white: #121212;
    --bg-gray: #1e1e1e;
    --text-main: #e0e0e0;
    --text-secondary: #b0b0b0;
    --border: #333;
    --shadow: 0 5px 15px rgba(0,0,0,0.3);
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: "Microsoft YaHei", sans-serif; }
body {
    background: var(--bg-white); 
    color: var(--text-main); 
    transition: var(--transition);
    scroll-behavior: smooth;
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* 容器样式 */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 16px;
    font-weight: 700;
    color: var(--text-main);
    transition: var(--transition);
    line-height: 1.3;
    letter-spacing: -0.025em;
}

h1 {
    font-size: 3rem;
    font-weight: 800;
}

h2 {
    font-size: 2.5rem;
    font-weight: 700;
}

h3 {
    font-size: 2rem;
    font-weight: 600;
}

h4 {
    font-size: 1.5rem;
    font-weight: 600;
}

/* 段落样式 */
p {
    margin-bottom: 1.5rem;
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

/* 链接样式 */
a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

a:hover {
    color: var(--primary);
}

/* 黑白模式切换按钮 */
.theme-toggle {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--bg-white);
    color: var(--text-main);
    box-shadow: var(--shadow);
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: var(--transition);
}
.theme-toggle:hover {
    transform: scale(1.1);
    background: var(--primary);
    color: #fff;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition);
    text-align: center;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(0, 102, 204, 0.1);
}

.btn-danger {
    background: #e74c3c;
    color: white;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 16px;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.btn-danger:hover {
    background: #c0392b;
    transform: translateY(-2px);
}

.btn-small {
    padding: 6px 14px;
    font-size: 14px;
}

.btn-small:hover {
    transform: translateY(-2px);
}

/* 动态模糊容器 */
.blur-container {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.blur-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 120%;
    height: 120%;
    filter: blur(15px);
    opacity: 0.2;
    z-index: -1;
    transform: scale(1.1);
    transition: var(--transition);
}

/* 动态模糊背景动画 */
@keyframes blur-move {
    0% {
        transform: translate(0, 0) scale(1.1);
    }
    25% {
        transform: translate(5%, 5%) scale(1.2);
    }
    50% {
        transform: translate(-3%, 8%) scale(1.15);
    }
    75% {
        transform: translate(2%, -3%) scale(1.2);
    }
    100% {
        transform: translate(0, 0) scale(1.1);
    }
}

/* 打字效果 */
.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--primary);
    white-space: nowrap;
    animation: typing 2.5s steps(25, end), blink 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: var(--primary); }
}

/* 水波纹背景效果 */
.water-wave-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(0, 102, 204, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 30%, rgba(0, 102, 204, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(0, 102, 204, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 60% 20%, rgba(0, 102, 204, 0.06) 0%, transparent 50%);
    background-size: 200% 200%;
    animation: waterWave 20s ease-in-out infinite;
    z-index: -1;
    opacity: 0.6;
}

@keyframes waterWave {
    0% {
        background-position: 0% 0%, 100% 50%, 0% 100%, 100% 0%;
    }
    25% {
        background-position: 100% 50%, 0% 100%, 100% 0%, 0% 50%;
    }
    50% {
        background-position: 50% 100%, 100% 0%, 50% 50%, 0% 100%;
    }
    75% {
        background-position: 0% 0%, 50% 50%, 100% 100%, 50% 0%;
    }
    100% {
        background-position: 0% 0%, 100% 50%, 0% 100%, 100% 0%;
    }
}

/* 更复杂的水波纹线条效果 */
.water-wave-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        repeating-linear-gradient(135deg, transparent, transparent 2px, rgba(0, 102, 204, 0.05) 2px, rgba(0, 102, 204, 0.05) 4px),
        repeating-linear-gradient(45deg, transparent, transparent 3px, rgba(0, 102, 204, 0.03) 3px, rgba(0, 102, 204, 0.03) 6px);
    background-size: 300% 300%;
    animation: waterWaveLines 15s ease-in-out infinite;
    z-index: -1;
    opacity: 0.4;
}

@keyframes waterWaveLines {
    0% {
        background-position: 0% 0%;
        transform: rotate(0deg);
    }
    50% {
        background-position: 100% 100%;
        transform: rotate(1deg);
    }
    100% {
        background-position: 0% 0%;
        transform: rotate(0deg);
    }
}

/* 渐变按钮样式 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);
}

/* 卡片样式 */
.card {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 30px;
    margin-bottom: 20px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 120%;
    height: 120%;
    filter: blur(15px);
    opacity: 0;
    z-index: -1;
    transform: scale(1.1);
    transition: var(--transition);
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1), transparent);
}

.card:hover {
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.card:hover::before {
    opacity: 0.3;
    transform: scale(1.2);
}

/* 模糊容器样式 */
.blur-container {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.blur-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 120%;
    height: 120%;
    filter: blur(15px);
    opacity: 0.2;
    z-index: -1;
    transform: scale(1.1);
    transition: var(--transition);
    background: var(--primary);
}

.blur-container:hover .blur-bg {
    transform: scale(1.2);
    opacity: 0.3;
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-main);
    font-weight: 500;
    font-size: 14px;
}

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    transition: var(--transition);
    background: var(--bg-white);
    color: var(--text-main);
    font-family: inherit;
}

.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-row {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.form-row .form-group {
    flex: 1;
    min-width: 200px;
}

.form-header {
    font-size: 20px;
    margin-bottom: 25px;
    font-weight: 600;
    border-left: 3px solid var(--primary);
    padding-left: 12px;
}

/* 表格样式 */
.table-container {
    overflow-x: auto;
    background-color: var(--bg-white);
    border-radius: 8px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
}

table th,
table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border);
    color: var(--text-main);
}

table th {
    background-color: var(--bg-gray);
    font-weight: 600;
    white-space: nowrap;
}

table tr:hover {
    background-color: rgba(0, 102, 204, 0.02);
}

table tr:last-child td {
    border-bottom: none;
}

/* 导航栏样式 */
.navbar, .top-navbar {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 999;
    transition: var(--transition);
}

.navbar-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar-brand {
    font-size: 22px;
    font-weight: bold;
    color: var(--primary);
    text-decoration: none;
}

.navbar-menu, .nav-menu {
    display: flex;
    list-style: none;
    gap: 15px;
    margin: 0;
    padding: 0;
}

.navbar-menu li, .nav-menu li {
    margin: 0 15px;
    position: relative;
}

.navbar-menu li a, .nav-menu li a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: var(--transition);
    display: block;
    height: 70px;
    line-height: 70px;
    font-size: 15px;
}

.navbar-menu li a:hover, .nav-menu li a:hover {
    color: var(--primary);
}

.navbar-right, .user-info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.pc-nav {
    flex: 1;
    display: flex;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    font-size: 24px;
    color: var(--text-main);
    background: none;
    border: none;
    cursor: pointer;
}

/* 管理员容器样式 */
.admin-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    position: relative;
}

.admin-container .main-content {
    margin: 0;
    padding: 24px;
    transition: margin-left var(--transition);
}

/* 移动端菜单按钮样式 */
.mobile-menu-btn {
    display: none;
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-main);
    font-size: 20px;
    padding: 8px 12px;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow);
    z-index: 1001;
}

.mobile-menu-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* 导航菜单下拉样式 */
.nav-item {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-white);
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-lg);
    list-style: none;
    margin: 0;
    padding: 8px 0;
    min-width: 200px;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li {
    margin: 0;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-main);
    transition: var(--transition);
    border-radius: 0;
    height: auto;
    line-height: normal;
}

.dropdown-menu a:hover {
    background: var(--bg-gray);
    color: var(--primary);
}

.dropdown-menu a.active {
    background: var(--primary);
    color: white;
}

/* 移动端侧边栏样式 */
.mobile-sidebar {
    position: fixed;
    top: 0;
    right: -320px;
    width: 320px;
    height: 100vh;
    background: var(--bg-white);
    box-shadow: var(--shadow-xl);
    z-index: 1002;
    transition: all 0.3s ease;
    overflow-y: auto;
    transform: none;
}

.mobile-sidebar.active {
    right: 0;
}

.mobile-sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.close-sidebar-btn {
    background: transparent;
    border: none;
    font-size: 24px;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius);
    transition: var(--transition);
}

.close-sidebar-btn:hover {
    background: var(--bg-gray);
    color: var(--text-main);
}

.mobile-nav {
    padding: 24px;
}

.mobile-menu-category {
    margin-bottom: 24px;
}

.mobile-menu-category h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

.mobile-menu {
    list-style: none;
    margin: 0;
    padding: 0;
}

.mobile-menu li {
    margin-bottom: 8px;
}

.mobile-menu a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-main);
    border-radius: var(--radius);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background: var(--bg-gray);
    color: var(--primary);
}

.mobile-menu a.active {
    background: var(--primary);
    color: white;
}

/* 侧边栏样式 */
.sidebar {
    width: 240px;
    background: var(--bg-white);
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 70px;
    left: 0;
    height: calc(100vh - 70px);
    transition: transform var(--transition), box-shadow var(--transition);
    z-index: 1000;
    padding: 24px 0;
    overflow-y: auto;
    transform: translateX(-100%);
}

.sidebar.active {
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0, 0, 0, 0.15);
}

/* 菜单容器 */
.sidebar-menu-container {
    padding: 0;
}

/* 菜单分类 */
.menu-category {
    margin-bottom: 24px;
}

.menu-category h3 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    margin: 0 0 12px 24px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: block;
}

.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: block;
}

.sidebar-menu li {
    margin: 0;
    padding: 0;
}

.sidebar-menu li a {
    display: flex;
    align-items: center;
    padding: 12px 24px;
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
    border-radius: 0;
    font-size: 15px;
    height: auto;
    line-height: normal;
}

.sidebar-menu li a:hover {
    background-color: rgba(0, 102, 204, 0.08);
    color: var(--primary);
    transform: translateX(4px);
}

.sidebar-menu li a.active {
    background-color: rgba(0, 102, 204, 0.12);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

.sidebar-menu li a span:first-child {
    margin-right: 12px;
    font-size: 18px;
    width: 20px;
    text-align: center;
}

/* 主内容区 */
.main-content {
    margin-left: 0;
    padding-bottom: 40px;
    transition: var(--transition);
}

/* 响应式设计 */
@media (min-width: 1024px) {
    .mobile-menu-btn {
        display: none !important;
    }
    
    .admin-container .main-content {
        margin-left: 0;
        margin-right: 24px;
    }
    
    .mobile-sidebar {
        display: none !important;
        position: fixed !important;
        top: 0 !important;
        left: -100% !important;
        z-index: -1 !important;
    }
}

@media (max-width: 1023px) {
    .mobile-menu-btn {
        display: block;
    }
    
    .navbar-container {
        padding: 0 16px;
    }
    
    .admin-container .main-content {
        margin-left: 0;
        margin-right: 0;
        padding: 20px;
    }
    
    /* 移动端菜单分类样式优化 */
    .menu-category h3 {
        font-size: 13px;
        margin: 0 0 10px 20px;
        color: var(--primary);
    }
    
    /* 移动端菜单项样式优化 */
    .sidebar-menu li a {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .sidebar-menu li a:hover {
        transform: translateX(2px);
    }
}

/* 移动端遮罩层 */
@media (max-width: 1023px) {
    .sidebar::before, .mobile-sidebar::before {
        content: '';
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transition: opacity var(--transition), visibility var(--transition);
        z-index: -1;
    }
    
    .sidebar.active::before, .mobile-sidebar.active::before {
        opacity: 1;
        visibility: visible;
        z-index: 999;
    }
}

/* 侧边栏滚动条样式 */
.sidebar::-webkit-scrollbar, .mobile-sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track, .mobile-sidebar::-webkit-scrollbar-track {
    background: var(--bg-gray);
}

.sidebar::-webkit-scrollbar-thumb, .mobile-sidebar::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover, .mobile-sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* 主内容区 */
.main-content {
    margin-bottom: 24px;
}

/* 页脚样式（参考index.html） */
.footer {
    background: #1d2129;
    color: #999;
    padding: 50px 0 20px;
    position: relative;
    overflow: hidden;
    z-index: 1;
    margin-top: 40px;
    transition: var(--transition);
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 120%;
    height: 120%;
    filter: blur(15px);
    opacity: 0.1;
    z-index: -1;
    transform: scale(1.1);
    transition: var(--transition);
    background: url('https://picsum.photos/id/104/1200/600') center center no-repeat;
    background-size: cover;
}

.footer:hover::before {
    transform: scale(1.2);
    opacity: 0.2;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-contact {
    flex: 1;
    min-width: 250px;
}

.footer-contact h4 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 15px;
}

.footer-contact p {
    margin: 8px 0;
    font-size: 13px;
}

.wechat-qrcode {
    margin-top: 15px;
}

.wechat-qrcode img {
    width: 100px;
    height: 100px;
    border-radius: 4px;
}

.wechat-qrcode p {
    text-align: center;
    margin-top: 5px;
    font-size: 12px;
    color: #ccc;
}

.footer-links {
    display: flex;
    gap: 40px;
    flex: 1;
    min-width: 300px;
}

.footer-links h4 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 15px;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin: 8px 0;
}

.footer-links a {
    color: #999;
    transition: var(--transition);
    font-size: 13px;
    text-decoration: none;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 15px;
    border-top: 1px solid #333;
    font-size: 12px;
}

.record-links {
    margin-top: 8px;
}

.record-links a {
    color: #666;
    margin: 0 8px;
    transition: var(--transition);
}

.record-links a:hover {
    color: #999;
}

/* 消息提示样式 */
.alert {
    padding: 12px 15px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    color: #28a745;
    border: 1px solid rgba(40, 167, 69, 0.3);
}

.alert-error {
    background-color: rgba(255, 78, 78, 0.1);
    color: #e74c3c;
    border: 1px solid rgba(255, 78, 78, 0.3);
}

.alert-info {
    background-color: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    border: 1px solid rgba(0, 102, 204, 0.3);
}

/* 电子工卡样式 */
.employee-card {
    background: var(--bg-white);
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 32px;
    text-align: center;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.employee-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

.employee-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.employee-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 20px;
    border: 4px solid var(--primary);
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    transition: var(--transition);
}

.employee-photo:hover {
    transform: scale(1.05);
}

.employee-info h2 {
    margin-bottom: 8px;
    color: var(--text-main);
    transition: var(--transition);
}

.employee-info p {
    margin-bottom: 4px;
    color: var(--text-secondary);
    transition: var(--transition);
}

.employee-id {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin: 16px 0;
    transition: var(--transition);
}

/* 二维码和条形码容器 */
.code-container {
    margin: 32px 0;
    padding: 24px;
    background-color: var(--bg-gray);
    border-radius: 12px;
    position: relative;
    transition: var(--transition);
}

.code-switcher {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    gap: 12px;
}

.code-switcher button {
    padding: 10px 24px;
    border: 2px solid var(--primary);
    background-color: var(--bg-white);
    color: var(--primary);
    border-radius: 24px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.code-switcher button:hover {
    background-color: rgba(0, 102, 204, 0.05);
    transform: translateY(-1px);
}

.code-switcher button.active {
    background-color: var(--primary);
    color: white;
}

.code-display {
    background-color: var(--bg-white);
    padding: 24px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin: 20px 0;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.code-image {
    max-width: 100%;
    height: auto;
    margin: 0 auto;
    display: block;
}

.dynamic-code {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 16px;
    font-family: 'Courier New', Courier, monospace;
    transition: var(--transition);
}

.expiry-time {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 8px;
    transition: var(--transition);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .admin-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        top: 0;
        padding: 16px 0;
        box-shadow: none;
        border-bottom: 1px solid var(--border);
    }
    
    .sidebar-menu {
        display: flex;
        flex-wrap: wrap;
        justify-content: center;
        gap: 8px;
    }
    
    .sidebar-menu li a {
        padding: 8px 16px;
        border-radius: 20px;
        border: none;
        height: auto;
        line-height: normal;
    }
    
    .sidebar-menu li a.active {
        background-color: var(--primary);
        color: white;
    }
    
    .main-content {
        margin-left: 20px;
        margin-right: 20px;
        margin-top: 20px;
        margin-bottom: 20px;
    }
    
    .stats-grid,
    .dashboard-cards {
        grid-template-columns: 1fr;
    }
    
    .code-container {
        padding: 16px;
    }
    
    .code-switcher {
        flex-wrap: wrap;
        gap: 8px;
    }
    
    .code-display {
        padding: 16px;
    }
    
    .navbar-menu {
        gap: 10px;
    }
    
    .navbar-menu li {
        margin: 0 10px;
    }
}

@media (max-width: 767px) {
    .navbar-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        align-items: center;
        padding: 15px 0;
        box-shadow: var(--shadow);
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease, transform 0.3s ease;
        visibility: hidden;
    }
    
    .navbar-menu.active {
        display: flex;
        opacity: 1;
        transform: translateY(0);
        visibility: visible;
    }
    
    .navbar-menu li {
        margin: 8px 0;
    }
    
    .navbar-menu li a {
        height: auto;
        line-height: normal;
        padding: 6px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .navbar-container {
        padding: 0 16px;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .employee-card {
        margin: 16px;
        padding: 20px;
    }
    
    .employee-photo {
        width: 100px;
        height: 100px;
    }
    
    .card-section {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .dashboard-content {
        padding: 0 16px;
    }
    
    .login-container {
        margin: 0 16px;
        padding: 30px 20px;
    }
    
    .verify-container {
        padding: 0 16px;
    }
    
    .verify-content {
        padding: 20px;
    }
    
    h1 {
        font-size: 26px;
    }
    
    h2 {
        font-size: 22px;
    }
    
    h3 {
        font-size: 20px;
    }
    
    .btn {
        padding: 12px 20px;
        font-size: 15px;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px 15px;
        font-size: 14px;
    }
    
    table {
        font-size: 14px;
    }
    
    table th,
    table td {
        padding: 8px 12px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .main-content {
        margin-left: 20px;
        margin-right: 20px;
        margin-top: 20px;
        margin-bottom: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-top {
        flex-direction: column;
        gap: 30px;
    }
}

@media (max-width: 480px) {
    .navbar-brand {
        font-size: 18px;
    }
    
    .navbar-right {
        gap: 8px;
    }
    
    .btn-small {
        padding: 4px 8px;
        font-size: 12px;
    }
    
    .sidebar-menu li a {
        padding: 6px 12px;
        font-size: 13px;
    }
    
    .employee-info h2 {
        font-size: 20px;
    }
    
    .employee-id {
        font-size: 16px;
    }
    
    .code-image {
        max-width: 100%;
        height: auto;
    }
    
    .qr-result {
        padding: 16px 0;
    }
    
    .verify-container {
        margin: 0;
    }
    
    .verify-content {
        margin: 16px;
        padding: 20px;
    }
}

/* 移动端触摸优化 */
@media (hover: none) and (pointer: coarse) {
    .btn:active {
        transform: scale(0.98);
    }
    
    .sidebar-menu li a:active {
        background-color: var(--primary);
        color: white;
    }
    
    .card:active {
        transform: translateY(-1px);
    }
}

/* 打字效果 */
.typing-effect {
    overflow: hidden;
    border-right: 2px solid var(--primary);
    white-space: nowrap;
    animation: typing 2.5s steps(25, end), blink 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: var(--primary); }
}


.section-title {
    text-align: center;
    font-size: 32px;
    margin-bottom: 40px;
    color: var(--text-main);
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(102, 126, 234, 0.3);
    border-radius: 50%;
    border-top-color: #667eea;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 辅助类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }
.w-full { width: 100%; }
.hidden { display: none; }
.visible { display: block; }