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

:root {
    /* 主色调 - 智己科技蓝 */
    --primary: #1E88E5;
    --primary-dark: #1976D2;
    --primary-light: #E3F2FD;
    
    /* 功能色 */
    --forward: #4CAF50;      /* 正向迁移 - 绿色 */
    --backward: #FF9800;     /* 逆向跳转 - 橙色 */
    --high-prob: #2E7D32;    /* 高概率 */
    --medium-prob: #66BB6A;  /* 中概率 */
    --low-prob: #A5D6A7;     /* 低概率 */
    
    /* Stage 颜色 */
    --s1: #1E88E5;  /* 开场破冰 - 蓝色 */
    --s2: #00ACC1;  /* 需求深挖 - 青色 */
    --s3: #4CAF50;  /* 价值传递 - 绿色 */
    --s4: #FFC107;  /* 顾虑化解 - 黄色 */
    --s5: #9C27B0;  /* 邀约收口 - 紫色 */
    
    /* 中性色 */
    --bg: #F5F7FA;
    --text: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border: #E0E0E0;
    --card-bg: #FFFFFF;
    
    /* 字体 */
    --font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

body {
    font-family: var(--font-family);
    background: var(--bg);
    color: var(--text);
    font-size: 14px;
    line-height: 1.5;
}

/* 页面切换 */
.page {
    display: none;
    min-height: 100vh;
}

.page.active {
    display: block;
}

/* 登录页 */
.login-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 24px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--bg) 100%);
}

.login-brand {
    text-align: center;
    margin-bottom: 40px;
}

.logo {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 16px;
}

.login-brand h2 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
}

.login-brand p {
    color: var(--text-secondary);
}

.login-form {
    background: var(--card-bg);
    padding: 32px;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 360px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.2s;
}

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

.form-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    font-size: 13px;
}

.checkbox {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.forgot-link {
    color: var(--text-light);
    text-decoration: none;
}

.forgot-link:hover {
    color: var(--primary);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
}

.btn-block {
    width: 100%;
    padding: 14px;
    font-size: 16px;
}

/* 主应用布局 */
#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 顶部导航 */
.top-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 60px;
    padding: 0 24px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mini-logo {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.nav-title {
    font-size: 16px;
    font-weight: 600;
}

.nav-tabs {
    display: flex;
    gap: 4px;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 4px;
    transition: all 0.2s;
}

.nav-tab:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.nav-tab.active {
    background: var(--primary);
    color: white;
}

/* 侧边栏 */
.sidebar {
    position: fixed;
    left: 0;
    top: 60px;
    width: 240px;
    height: calc(100vh - 60px);
    background: var(--card-bg);
    border-right: 1px solid var(--border);
    padding: 20px;
    overflow-y: auto;
}

.sidebar-section {
    margin-bottom: 24px;
}

.sidebar-section h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    text-transform: uppercase;
    margin-bottom: 12px;
}

/* Stage 树 */
.stage-item {
    margin-bottom: 4px;
}

.stage-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    cursor: pointer;
    border-radius: 4px;
    transition: background 0.2s;
}

.stage-header:hover {
    background: var(--bg);
}

.stage-badge {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 700;
    color: white;
}

.stage-badge.s1 { background: var(--s1); }
.stage-badge.s2 { background: var(--s2); }
.stage-badge.s3 { background: var(--s3); }
.stage-badge.s4 { background: var(--s4); }
.stage-badge.s5 { background: var(--s5); }

.stage-name {
    flex: 1;
    font-weight: 500;
}

/* 图例 */
.legend-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 13px;
}

.legend-line {
    width: 24px;
    height: 3px;
    border-radius: 2px;
}

.legend-line.forward {
    background: var(--forward);
}

.legend-line.backward {
    background: var(--backward);
}

/* 主内容区 */
.main-content {
    margin-left: 240px;
    padding: 24px;
    min-height: calc(100vh - 60px);
}

.content-page {
    display: none;
}

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

/* 文件上传 */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 48px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    background: var(--card-bg);
}

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

/* 图谱容器 */
#graph-container {
    width: 100%;
    height: 600px;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* D3 图谱样式 */
.node circle {
    cursor: pointer;
    transition: all 0.3s;
}

.node:hover circle {
    filter: brightness(1.1);
    transform: scale(1.1);
}

.node text {
    font-size: 12px;
    pointer-events: none;
}

.link {
    fill: none;
    stroke-opacity: 0.6;
    transition: all 0.3s;
}

.link:hover {
    stroke-opacity: 1;
}

.link.forward {
    stroke: var(--forward);
}

.link.backward {
    stroke: var(--backward);
}

.link-label {
    font-size: 11px;
    fill: var(--text-secondary);
}

/* ============================================
   S-T-A 结构化分析结果样式
   ============================================ */

.sta-results {
    margin-top: 24px;
}

.sta-results h3 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text);
}

.sta-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.sta-call-item {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    border-left: 4px solid var(--primary);
}

.call-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.call-id {
    font-family: monospace;
    font-size: 12px;
    color: var(--text-light);
}

.call-date {
    font-size: 12px;
    color: var(--text-secondary);
}

.conversion-badge {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    background: #E0E0E0;
    color: #666;
}

.conversion-badge.success {
    background: #E8F5E9;
    color: #2E7D32;
}

.call-meta {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.segments-preview {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.segment-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px;
    background: var(--bg);
    border-radius: 4px;
    font-size: 13px;
}

.seg-time {
    font-family: monospace;
    font-size: 11px;
    color: var(--text-light);
    min-width: 60px;
}

.seg-speaker {
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 500;
}

.seg-speaker.sales {
    background: #E3F2FD;
    color: #1565C0;
}

.seg-speaker.customer {
    background: #E8F5E9;
    color: #2E7D32;
}

.seg-sta {
    display: flex;
    gap: 4px;
}

.sta-badge {
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 10px;
    font-weight: 500;
}

.sta-badge.stage-s1 { background: var(--s1); color: white; }
.sta-badge.stage-s2 { background: var(--s2); color: white; }
.sta-badge.stage-s3 { background: var(--s3); color: white; }
.sta-badge.stage-s4 { background: var(--s4); color: #333; }
.sta-badge.stage-s5 { background: var(--s5); color: white; }

.sta-badge.topic {
    background: #F5F5F5;
    color: #666;
}

.sta-badge.act {
    color: white;
}

.seg-content {
    flex: 1;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.more-segments {
    text-align: center;
    font-size: 12px;
    color: var(--text-light);
    padding: 8px;
}

.sta-export {
    margin-top: 24px;
    display: flex;
    gap: 12px;
}

.btn {
    padding: 10px 20px;
    border-radius: 4px;
    border: none;
    cursor: pointer;
    font-size: 14px;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

/* 同步通知增强 */
.stage-stats {
    margin-top: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    font-family: monospace;
}

/* 响应式 */
@media (max-width: 1024px) {
    .sidebar {
        width: 200px;
    }
    .main-content {
        margin-left: 200px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    .main-content {
        margin-left: 0;
    }
    .nav-tabs {
        display: none;
    }
    
    .segment-item {
        flex-wrap: wrap;
    }
    
    .seg-content {
        width: 100%;
        margin-top: 4px;
    }
}

/* ============================================
   实时引导页面样式
   ============================================ */

.guide-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 1200px;
}

.guide-input-section {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.guide-input-section h3 {
    margin-bottom: 12px;
    font-size: 16px;
    color: var(--text);
}

.guide-input {
    width: 100%;
    min-height: 120px;
    padding: 12px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-family);
    font-size: 14px;
    resize: vertical;
}

.guide-actions {
    margin-top: 12px;
    display: flex;
    gap: 12px;
}

.recommendation-section {
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.recommendation-section h3 {
    margin-bottom: 16px;
    font-size: 16px;
    color: var(--text);
}

.recommendation-card {
    background: linear-gradient(135deg, #E3F2FD 0%, #F5F7FA 100%);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
    border-left: 4px solid var(--primary);
}

.rec-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.rec-topic-flow {
    font-weight: 600;
    color: var(--primary);
}

.rec-confidence {
    background: var(--primary);
    color: white;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.rec-act {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.rec-script {
    background: white;
    border-radius: 4px;
    padding: 16px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text);
    margin-bottom: 12px;
    border: 1px solid var(--border);
}

.rec-reason {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.rec-path {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--text-light);
}

.guide-history {
    grid-column: 1 / -1;
    background: var(--card-bg);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    max-height: 300px;
    overflow-y: auto;
}

.guide-history h3 {
    margin-bottom: 12px;
    font-size: 16px;
    color: var(--text);
}

.history-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.history-item {
    padding: 12px;
    background: var(--bg);
    border-radius: 4px;
    display: flex;
    gap: 12px;
}

.history-speaker.customer {
    color: #4CAF50;
    font-weight: 600;
    min-width: 60px;
}

.history-speaker.sales {
    color: var(--primary);
    font-weight: 600;
    min-width: 60px;
}

@media (max-width: 768px) {
    .guide-container {
        grid-template-columns: 1fr;
    }
    
    .guide-history {
        grid-column: 1;
    }
}

/* ============================================
   V5.1-Production: 3选1推荐卡片样式
   ============================================ */

.guide-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.input-section {
    background: white;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 24px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.input-section label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text);
}

.input-section input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 14px;
}

.input-section button {
    margin-top: 10px;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.option-card {
    background: white;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
}

.option-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.option-card.low { border-left: 4px solid #4CAF50; }
.option-card.medium { border-left: 4px solid #FFC107; }
.option-card.high { border-left: 4px solid #FF9800; }

.opt-rank {
    position: absolute;
    top: -10px;
    left: 20px;
    background: var(--primary);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.opt-label {
    font-size: 12px;
    color: var(--text-light);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.opt-act {
    font-size: 18px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 12px;
}

.opt-script {
    background: #f5f5f5;
    padding: 12px;
    border-radius: 4px;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 12px;
    border-left: 3px solid var(--primary);
}

.opt-stats {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-secondary);
}

.opt-stats .rate { color: #4CAF50; font-weight: 500; }

.opt-reply-preview {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px dashed #e0e0e0;
    font-size: 13px;
    color: #666;
    font-style: italic;
}

/* 对话流 */
#conversation-flow {
    margin-top: 30px;
    padding: 20px;
    background: #fafafa;
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
}

#conversation-flow h3 {
    margin-bottom: 16px;
    color: var(--text);
}

.turn {
    margin-bottom: 16px;
}

.sales-bubble {
    background: #E3F2FD;
    padding: 12px 16px;
    border-radius: 12px 12px 12px 4px;
    margin: 8px 0 8px 0;
    margin-right: 20%;
}

.customer-bubble {
    background: white;
    border: 1px solid #e0e0e0;
    padding: 12px 16px;
    border-radius: 12px 12px 4px 12px;
    margin: 8px 0 8px 20%;
}

.next-round-hint {
    margin-top: 20px;
    padding: 16px;
    background: #E8F5E9;
    border-radius: 8px;
    color: #2E7D32;
    text-align: center;
}

/* 加载遮罩 */
#loading-mask {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.95);
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#loading-text {
    margin-top: 16px;
    color: var(--text-secondary);
}

/* S-T-A结果展示 */
.sta-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
}

.sta-item {
    background: white;
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.sta-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.sta-id {
    font-size: 12px;
    color: var(--text-light);
}

.sta-conversion {
    font-size: 12px;
    padding: 4px 8px;
    border-radius: 4px;
}

.sta-conversion.converted {
    background: #E8F5E9;
    color: #2E7D32;
}

.sta-segments {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sta-seg {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px;
    background: var(--bg);
    border-radius: 4px;
}

.stage-badge {
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

/* 仪表盘统计 */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 24px;
}

.stat-card {
    background: white;
    padding: 24px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
    text-align: center;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 8px;
}

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

/* 动画 */
@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 通知 */
.notification {
    animation: slideIn 0.3s ease;
}

/* 图谱样式增强 */
.node {
    cursor: pointer;
}

.node:hover circle {
    stroke: #333;
    stroke-width: 3;
}

.link {
    transition: stroke-opacity 0.3s;
}