/* 智能文档分析助手样式 - 简约科技风 */

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

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #eff6ff;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部 */
.header {
    margin-bottom: 30px;
    padding: 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

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

.logo-area {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, #3b82f6 100%);
    border-radius: 12px;
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.logo-text h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 4px;
}

.logo-text .subtitle {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 主内容 */
.main {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* 区域标题 */
.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.section-title svg {
    color: var(--primary-color);
}

.section-title h2 {
    font-size: 18px;
    font-weight: 600;
}

/* 上传区域 */
.upload-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.upload-box {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.upload-area {
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    padding: 40px;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    transition: all 0.2s;
    background: var(--bg-color);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.upload-area.dragover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.upload-icon {
    color: var(--text-secondary);
}

.upload-box h3 {
    font-size: 17px;
    font-weight: 500;
}

.upload-box p {
    color: var(--text-secondary);
    font-size: 14px;
}

.upload-hint {
    font-size: 12px !important;
    color: var(--text-secondary);
    opacity: 0.7;
}

/* 按钮 */
.btn-primary, .btn-ask, .btn-change, .btn-close, .btn-analyze {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary, .btn-ask, .btn-analyze {
    background: linear-gradient(135deg, var(--primary-color) 0%, #3b82f6 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-primary:hover, .btn-ask:hover, .btn-analyze:hover {
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
    transform: translateY(-1px);
}

.btn-change {
    background: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 5px 14px;
    font-size: 13px;
}

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

.btn-close {
    background: transparent;
    color: var(--text-secondary);
    padding: 5px 12px;
}

.btn-close:hover {
    color: var(--text-primary);
}

/* 已上传文件 */
.uploaded-file {
    text-align: center;
}

.file-info {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.file-info span {
    font-size: 14px;
}

/* 场景选择区域 */
.scenario-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

/* 选项卡 */
.scenario-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    flex: 1;
    padding: 14px 20px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 15px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border-bottom: 2px solid transparent;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

/* 选项卡内容 */
.tab-content {
    display: none;
    padding: 20px;
}

.tab-content.active {
    display: block;
}

/* 场景选择器 */
.scenario-selector {
    margin-bottom: 20px;
}

.scenario-selector label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.scenario-selector select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    font-size: 14px;
}

.scenario-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 场景说明 */
.scenario-desc {
    padding: 14px 18px;
    background: var(--primary-light);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 8px;
    margin-bottom: 20px;
}

.scenario-desc h4 {
    font-size: 15px;
    font-weight: 500;
    margin-bottom: 4px;
}

.scenario-desc p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* 快捷问题 */
.quick-questions h4 {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--text-secondary);
}

.questions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 10px;
    margin-bottom: 16px;
}

.question-btn {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 14px;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-size: 13px;
}

.question-btn:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

.question-btn .icon {
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    border-radius: 6px;
    color: var(--primary-color);
}

/* 自定义问题 */
.custom-question h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.question-input-wrapper {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.question-input-wrapper textarea {
    flex: 1;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    resize: none;
    min-height: 70px;
    transition: border-color 0.2s;
}

.question-input-wrapper textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* 自定义场景表单 */
.custom-scenario-form {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group label .required {
    color: var(--danger-color);
}

.form-group input,
.form-group textarea {
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.radio-group {
    display: flex;
    gap: 20px;
}

.radio-group label {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    color: var(--text-primary);
    cursor: pointer;
}

.radio-group input[type="radio"] {
    width: auto;
}

.btn-analyze {
    width: 100%;
    padding: 12px 24px;
}

/* 结果区域 */
.results-section {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
}

.results-header h3 {
    font-size: 15px;
    font-weight: 500;
}

.results-content {
    padding: 18px;
    max-height: 500px;
    overflow-y: auto;
}

/* 结果卡片 */
.result-card {
    background: var(--bg-color);
    border-radius: 10px;
    padding: 14px 18px;
    margin-bottom: 14px;
    border: 1px solid var(--border-color);
}

.result-card:last-child {
    margin-bottom: 0;
}

.result-card h4 {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.result-card .value {
    font-size: 14px;
    line-height: 1.7;
    white-space: pre-wrap;
}

.result-list {
    list-style: none;
}

.result-list li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
}

.result-list li:last-child {
    border-bottom: none;
}

.result-list .bullet {
    flex-shrink: 0;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    margin-top: 8px;
}

/* 标签样式 */
.tag {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.tag.mandatory {
    background: rgba(248, 81, 73, 0.2);
    color: var(--danger-color);
}

.tag.optional {
    background: rgba(33, 150, 243, 0.2);
    color: var(--primary-color);
}

.tag.warning {
    background: rgba(210, 153, 34, 0.2);
    color: var(--warning-color);
}

/* 风险等级 */
.risk-high {
    color: var(--danger-color);
}

.risk-medium {
    color: var(--warning-color);
}

.risk-low {
    color: var(--success-color);
}

/* 加载动画 */
.loading {
    text-align: center;
    padding: 32px;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 14px;
}

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

.loading p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* 响应式 */
@media (max-width: 640px) {
    .header {
        flex-direction: column;
        gap: 14px;
    }

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

    .question-input-wrapper {
        flex-direction: column;
    }

    .btn-ask {
        width: 100%;
    }
}