/* 核心布局 */
:root {
    --primary-blue: #3498db;
    --dark-blue: #2c3e50;
    --hover-blue: #2980b9;
}
.main-card {
    background: rgba(255,255,255,0.98);
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
    margin: 2rem auto;
    overflow: hidden;
}

/* 头部样式 */
.card-header {
    border-radius: 0;
    padding: 2rem 0;
    background: linear-gradient(135deg, #2c3e50, #3498db) !important;
}

/* 输入区域 */
.prediction-input-section {
    padding: 2rem;
    background: #f8f9fa;
    border-radius: 8px;
}

.nav-pills .nav-link {
    border-radius: 6px;
    padding: 1rem 1.5rem;
    transition: all 0.3s ease;
    color: #495057;
}
.nav-item.active .nav-link::after {
    background: #3498db; /* 改为与导航栏主色一致 */
}
.nav-pills .nav-link.active {
    background: linear-gradient(45deg, #3498db, #2980b9);
    color: white !important;
    box-shadow: 0 4px 6px rgba(52,152,219,0.2);
}

/* 表格样式 */
.prediction-results table {
    border: 1px solid #dee2e6;
}

.table-hover tbody tr:hover {
    background-color: rgba(52,152,219,0.05);
}

/* 按钮样式 */
.btn-primary {
    background: #3498db;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
    transition: transform 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(52,152,219,0.3);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .nav-pills {
        flex-direction: row !important;
        overflow-x: auto;
    }

    .table-responsive {
        border: 0;
    }

    .prediction-results table td {
        white-space: nowrap;
    }
}
@media (max-width: 992px) {
    .navbar-collapse {
        background: linear-gradient(135deg, #2c3e50, #3498db); /* 保持与PC端一致 */
    }
}