/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: #333;
    background-color: #f8f9fa;
}

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

/* 标题样式 */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 500;
    line-height: 1.2;
}

/* 导航栏样式 */
.navbar {
    margin-bottom: 20px;
    border-radius: 0;
}

/* 卡片样式 */
.card {
    margin-bottom: 20px;
    border: 1px solid #dee2e6;
    border-radius: 0.375rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
}

.card-header {
    padding: 0.75rem 1.25rem;
    margin-bottom: 0;
    background-color: #f8f9fa;
    border-bottom: 1px solid #dee2e6;
    border-radius: calc(0.375rem - 1px) calc(0.375rem - 1px) 0 0;
}

.card-body {
    padding: 1.25rem;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-control {
    display: block;
    width: 100%;
    height: calc(1.5em + 0.75rem + 2px);
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-control:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    user-select: none;
    border: 1px solid transparent;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    cursor: pointer;
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.btn-primary:hover {
    color: #fff;
    background-color: #0069d9;
    border-color: #0062cc;
}

.btn-success {
    color: #fff;
    background-color: #28a745;
    border-color: #28a745;
}

.btn-success:hover {
    color: #fff;
    background-color: #218838;
    border-color: #1e7e34;
}

.btn-danger {
    color: #fff;
    background-color: #dc3545;
    border-color: #dc3545;
}

.btn-danger:hover {
    color: #fff;
    background-color: #c82333;
    border-color: #bd2130;
}

/* 表格样式 */
.table {
    width: 100%;
    margin-bottom: 1rem;
    color: #212529;
    background-color: transparent;
}

.table th, .table td {
    padding: 0.75rem;
    vertical-align: middle;
    border-top: 1px solid #dee2e6;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid #dee2e6;
}

.table-bordered {
    border: 1px solid #dee2e6;
}

.table-bordered th, .table-bordered td {
    border: 1px solid #dee2e6;
}

/* 模态框样式 - 使用Bootstrap默认样式，移除自定义冲突样式 */
/* 只保留必要的自定义样式，避免覆盖Bootstrap核心功能 */

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 123, 255, 0.3);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 错误信息样式 */
.error {
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* 成功信息样式 */
.success {
    color: #28a745;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .card {
        margin-bottom: 10px;
    }
    
    .table-responsive {
        overflow-x: auto;
    }
}

/* 大屏显示样式 */
.screen-container {
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    background-color: #000;
    color: #fff;
    display: flex;
    flex-direction: column;
}

.screen-title {
    font-size: 3rem;
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.screen-student {
    font-size: 2rem;
    text-align: center;
    margin: 10px 0;
}

.screen-score {
    font-size: 4rem;
    font-weight: bold;
    text-align: center;
    margin: 20px 0;
    color: #ffd700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

/* 登录页面样式 */
.login-container {
    max-width: 400px;
    margin: 100px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 0.375rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.login-title {
    text-align: center;
    margin-bottom: 30px;
    color: #007bff;
}

/* 评分页面样式 */
.score-input {
    font-size: 2rem;
    text-align: center;
    height: auto;
    padding: 10px;
    margin: 20px 0;
}

/* 搜索建议样式 */
#searchSuggestions {
    z-index: 1000;
    background-color: #fff;
    border: 1px solid #ced4da;
    border-radius: 0.25rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    max-height: 200px;
    overflow-y: auto;
}

/* 搜索容器需要相对定位，使搜索建议能正确定位 */
.search-container {
    position: relative;
}

/* 首页导航样式 */
.dashboard-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 30px;
}

.dashboard-item {
    flex: 1 1 200px;
    text-align: center;
    padding: 30px;
    background-color: #fff;
    border-radius: 0.375rem;
    box-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}

.dashboard-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
}

.dashboard-item i {
    font-size: 3rem;
    margin-bottom: 15px;
    color: #007bff;
}

.dashboard-item h3 {
    margin: 0;
    font-size: 1.25rem;
}

/* 移动端响应式优化 */
@media (max-width: 768px) {
    /* 全局样式调整 */
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 10px;
        margin: 0 auto;
    }
    
    /* 卡片样式 */
    .card {
        margin-bottom: 15px;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .card-header {
        padding: 0.75rem 1rem;
    }
    
    /* 标题样式 */
    .card-title {
        font-size: 1.1rem;
    }
    
    /* 表格样式 */
    .table {
        font-size: 0.9rem;
    }
    
    .table th, .table td {
        padding: 0.5rem;
    }
    
    /* 按钮样式 */
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.9rem;
    }
    
    /* 表单样式 */
    .form-label {
        font-size: 0.9rem;
        margin-bottom: 0.375rem;
    }
    
    .form-control {
        font-size: 0.9rem;
        height: calc(1.5em + 0.5rem + 2px);
        padding: 0.25rem 0.5rem;
    }
    
    /* 学生信息样式 */
    #studentInfo .border {
        padding: 1rem;
    }
    
    #studentPhoto {
        max-height: 120px !important;
    }
    
    /* 搜索建议样式 */
    #searchSuggestions {
        max-height: 150px;
        font-size: 0.9rem;
    }
    
    /* 导航栏样式 */
    .navbar-brand {
        font-size: 1.1rem;
    }
    
    /* 模态框样式 */
    .modal-title {
        font-size: 1.1rem;
    }
    
    /* 分页样式 */
    .pagination {
        font-size: 0.85rem;
    }
    
    .page-link {
        padding: 0.375rem 0.75rem;
    }
}

/* 小屏设备优化 */
@media (max-width: 480px) {
    .card-body {
        padding: 0.75rem;
    }
    
    #studentInfo .border {
        padding: 0.75rem;
    }
    
    #studentPhoto {
        max-height: 100px !important;
    }
    
    .table {
        font-size: 0.85rem;
    }
    
    .table th, .table td {
        padding: 0.375rem;
    }
}