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

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

/* 背景动画 */
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
    pointer-events: none;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
    animation-delay: 0s;
}

.circle-2 {
    width: 500px;
    height: 500px;
    bottom: -250px;
    right: -250px;
    animation-delay: 7s;
}

.circle-3 {
    width: 400px;
    height: 400px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: 14s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-50px) scale(1.1);
        opacity: 0.8;
    }
}

/* 容器 */
.container {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* 头部 */
.header {
    text-align: center;
    margin-bottom: 3rem;
    color: white;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #ffffff, #f0f0f0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    font-weight: 300;
}

/* 卡片 */
.card {
    background: var(--bg-primary);
    border-radius: 1rem;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-xl);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.card-header {
    margin-bottom: 2rem;
}

.card-header h2 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-header p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.report-actions {
    display: flex;
    gap: 0.5rem;
}

/* 表单 */
.analysis-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input {
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--bg-secondary);
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-group input:invalid {
    border-color: var(--error-color);
}

.form-hint {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

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

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: #667eea;
}

.btn-icon {
    padding: 0.5rem;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-icon:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: #667eea;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* 进度条 */
.progress-container {
    margin: 2rem 0;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: var(--bg-secondary);
    border-radius: 1rem;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 1rem;
    transition: width 0.5s ease;
    position: relative;
    overflow: hidden;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(100%);
    }
}

.progress-text {
    text-align: center;
    margin-top: 0.75rem;
    font-weight: 600;
    font-size: 1.125rem;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 进度步骤 */
.progress-steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin: 2rem 0;
}

.step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    border-radius: 0.75rem;
    background: var(--bg-secondary);
    transition: all 0.3s ease;
}

.step.active {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border: 2px solid #667eea;
}

.step.completed {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(5, 150, 105, 0.1));
}

.step-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: white;
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.step.active .step-icon {
    background: var(--primary-gradient);
    color: white;
    border-color: transparent;
    animation: pulse 2s infinite;
}

.step.completed .step-icon {
    background: var(--success-color);
    color: white;
    border-color: transparent;
}

.step.completed .step-icon::before {
    content: '✓';
    font-size: 1.5rem;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(102, 126, 234, 0.7);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(102, 126, 234, 0);
    }
}

.step-label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.step.active .step-label {
    color: var(--text-primary);
    font-weight: 600;
}

/* 报告内容 */
.report-content {
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 0.75rem;
    max-height: 600px;
    overflow-y: auto;
    line-height: 1.8;
}

.report-content h1,
.report-content h2,
.report-content h3,
.report-content h4 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.report-content h1 {
    font-size: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.report-content h2 {
    font-size: 1.5rem;
    color: #667eea;
}

.report-content h3 {
    font-size: 1.25rem;
    color: #764ba2;
}

.report-content h4 {
    font-size: 1.1rem;
}

/* 美化报告表格 */
.report-content .report-table,
.report-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background: white;
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.report-content .report-table th,
.report-content table th {
    padding: 1rem 1.5rem;
    text-align: left;
    background: var(--primary-gradient);
    color: white;
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.report-content .report-table td,
.report-content table td {
    padding: 0.875rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.report-content .report-table tr:nth-child(even),
.report-content table tr:nth-child(even) {
    background: var(--bg-secondary);
}

.report-content .report-table tr:hover,
.report-content table tr:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    transform: scale(1.01);
    transition: all 0.2s ease;
}

.report-content .report-table tr:last-child td,
.report-content table tr:last-child td {
    border-bottom: none;
}

/* ASCII表格样式 */
.report-content pre.ascii-table {
    background: #1e1e1e;
    color: #d4d4d4;
    padding: 1.5rem;
    border-radius: 0.75rem;
    overflow-x: auto;
    font-family: 'Courier New', 'Consolas', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    margin: 1.5rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.report-content code {
    padding: 0.2rem 0.5rem;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1), rgba(118, 75, 162, 0.1));
    border: 1px solid rgba(102, 126, 234, 0.2);
    border-radius: 0.25rem;
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
    color: #667eea;
}

.report-content pre code {
    background: transparent;
    border: none;
    padding: 0;
    color: inherit;
}

.report-content ul {
    margin: 1rem 0;
    padding-left: 2rem;
}

.report-content li {
    margin: 0.5rem 0;
}

.report-content p {
    margin: 0.75rem 0;
}

.report-content strong {
    color: var(--text-primary);
    font-weight: 700;
}

.report-content a {
    color: #667eea;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.report-content a:hover {
    border-bottom-color: #667eea;
}

/* 历史记录 */
.history-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.history-item:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05), rgba(118, 75, 162, 0.05));
    transform: translateX(4px);
}

.history-item-info h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    color: var(--text-primary);
}

.history-item-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.history-item-actions {
    display: flex;
    gap: 0.5rem;
}

/* Toast通知 */
.toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: white;
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.toast.hidden {
    display: none;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.toast-icon {
    font-size: 1.25rem;
}

.toast-message {
    font-weight: 500;
}

.toast.success {
    border-left: 4px solid var(--success-color);
}

.toast.error {
    border-left: 4px solid var(--error-color);
}

.toast.warning {
    border-left: 4px solid var(--warning-color);
}

@keyframes slideIn {
    from {
        transform: translateX(400px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 隐藏类 */
.hidden {
    display: none !important;
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.loading::after {
    content: '...';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% {
        content: '.';
    }
    40% {
        content: '..';
    }
    60%, 100% {
        content: '...';
    }
}

/* 页脚 */
.footer {
    text-align: center;
    padding: 2rem 0;
    color: white;
    opacity: 0.8;
    font-size: 0.875rem;
}

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

    .logo h1 {
        font-size: 1.75rem;
    }

    .subtitle {
        font-size: 1rem;
    }

    .card {
        padding: 1.5rem;
    }

    .progress-steps {
        grid-template-columns: 1fr;
    }

    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .report-actions {
        width: 100%;
        justify-content: flex-end;
    }

    .toast {
        left: 1rem;
        right: 1rem;
        bottom: 1rem;
    }
}

/* 滚动条样式 */
.report-content::-webkit-scrollbar {
    width: 8px;
}

.report-content::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

.report-content::-webkit-scrollbar-thumb {
    background: linear-gradient(to bottom, #667eea, #764ba2);
    border-radius: 4px;
}

.report-content::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(to bottom, #5568d3, #6a3d8f);
}