/* B端横版风格样式 */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #e74c3c;
    --light-gray: #ecf0f1;
    --medium-gray: #bdc3c7;
    --dark-gray: #7f8c8d;
    --white: #ffffff;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: var(--primary-color);
    line-height: 1.6;
}

/* 顶部导航栏 */
.navbar {
    background-color: var(--primary-color);
    padding: 1rem 0;
    box-shadow: var(--box-shadow);
}

.navbar-brand {
    color: var(--white) !important;
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
}

.navbar-nav .nav-link {
    color: var(--light-gray) !important;
    font-weight: 500;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--white) !important;
}

/* 主容器 */
.main-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    box-shadow: var(--box-shadow);
}

.page-title {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Tab导航 */
.nav-tabs {
    border-bottom: 2px solid var(--light-gray);
    margin-bottom: 2rem;
}

.nav-tabs .nav-link {
    border: none;
    color: var(--dark-gray);
    font-weight: 500;
    padding: 1rem 2rem;
    transition: var(--transition);
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.nav-tabs .nav-link:hover {
    border-color: transparent;
    color: var(--secondary-color);
    background-color: var(--light-gray);
}

.nav-tabs .nav-link.active {
    color: var(--secondary-color);
    background-color: var(--white);
    border-color: var(--light-gray) var(--light-gray) var(--white);
    border-width: 2px 2px 2px 2px;
}

/* 卡片样式 */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    border: none;
    transition: var(--transition);
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--light-gray), var(--white));
    border-bottom: 1px solid var(--medium-gray);
    padding: 1.5rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    color: var(--primary-color);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--dark-gray);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.card-text {
    color: var(--dark-gray);
    margin-bottom: 1rem;
}

/* 按钮样式 */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--secondary-color);
    color: var(--white);
}

.btn-primary:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
}

.btn-success {
    background-color: var(--success-color);
    color: var(--white);
}

.btn-success:hover {
    background-color: #229954;
}

.btn-warning {
    background-color: var(--warning-color);
    color: var(--white);
}

.btn-warning:hover {
    background-color: #e67e22;
}

.btn-outline-primary {
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--secondary-color);
    color: var(--white);
}

/* 网格布局 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

/* 状态标签 */
.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
}

.status-pending {
    background-color: #fff3cd;
    color: #856404;
}

.status-processing {
    background-color: #d1ecf1;
    color: #0c5460;
}

.status-completed {
    background-color: #d4edda;
    color: #155724;
}

.status-failed {
    background-color: #f8d7da;
    color: #721c24;
}

/* 上传区域 */
.upload-area {
    border: 2px dashed var(--medium-gray);
    border-radius: var(--border-radius);
    padding: 3rem;
    text-align: center;
    background-color: var(--white);
    transition: var(--transition);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--secondary-color);
    background-color: #f8f9fa;
}

.upload-area.dragover {
    border-color: var(--secondary-color);
    background-color: #e3f2fd;
}

.upload-icon {
    font-size: 3rem;
    color: var(--medium-gray);
    margin-bottom: 1rem;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--primary-color);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light-gray);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

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

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

/* 面包屑导航 */
.breadcrumb {
    background: transparent;
    padding: 0;
    margin-bottom: 1rem;
}

.breadcrumb-item {
    color: var(--dark-gray);
}

.breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 500;
}

.breadcrumb-item + .breadcrumb-item::before {
    content: ">";
    color: var(--medium-gray);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .main-container {
        padding: 1rem;
    }

    .card-grid {
        grid-template-columns: 1fr;
    }

    .page-header {
        padding: 1.5rem;
    }

    .page-title {
        font-size: 1.5rem;
    }
}

/* 工具提示 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background-color: var(--primary-color);
    color: var(--white);
    text-align: center;
    border-radius: var(--border-radius);
    padding: 0.5rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--dark-gray);
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--medium-gray);
    margin-bottom: 1rem;
}

.empty-state-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.empty-state-text {
    font-size: 1rem;
    margin-bottom: 2rem;
}

/* JSON编辑器样式 */
#jsonEditorTextarea {
    font-family: 'Courier New', Courier, monospace;
    background-color: #f8f9fa;
    border: 2px solid var(--light-gray);
    resize: vertical;
    min-height: 400px;
    line-height: 1.5;
    tab-size: 2;
}

#jsonEditorTextarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
    background-color: var(--white);
}

#analysisJsonEditor .alert-info {
    border-left: 4px solid var(--secondary-color);
}

/* JSON查看器和编辑器的过渡动画 */
#analysisJsonContent,
#analysisJsonEditor {
    animation: slideDown 0.3s ease-in-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 按钮组间距 */
.gap-2 {
    gap: 0.5rem;
}