/* Landing Page - 深色科技风格 (参考website设计) */

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 品牌色 - 更柔和的蓝色系 */
    --primary-color: #6366F1;
    --primary-dark: #4F46E5;
    --primary-light: #818CF8;
    --accent-color: #06B6D4;
    --accent-dark: #0891B2;
    --secondary-color: #10B981;
    
    /* 背景 */
    --bg-dark: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #141414;
    
    /* 文本 */
    --text-primary: #FFFFFF;
    --text-secondary: #D1D5DB;
    --text-tertiary: #9CA3AF;
    
    /* 边框 */
    --border-color: #374151;
    --border-light: #4B5563;
    
    /* 状态 */
    --success: #10B981;
    --error: #EF4444;
    --warning: #F59E0B;
}

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

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

/* ===== 工具类 ===== */
.glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.glow-primary {
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.2);
}

.glow-accent {
    box-shadow: 0 0 20px rgba(6, 182, 212, 0.2);
}

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
}

/* ===== Navigation ===== */
.navbar {
    background: rgba(10, 10, 10, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
    padding: 0.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 1rem 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--text-primary);
}

.nav-brand i {
    font-size: 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.3s;
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transition: width 0.3s;
}

.nav-menu a:hover {
    color: var(--text-primary);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-menu a.nav-admin {
    padding: 0.5rem 1rem;
    background: rgba(143, 91, 255, 0.1);
    border: 1px solid rgba(143, 91, 255, 0.3);
    border-radius: 0.5rem;
    font-size: 0.875rem;
}

.nav-menu a.nav-admin:hover {
    background: rgba(143, 91, 255, 0.2);
    box-shadow: 0 0 20px rgba(143, 91, 255, 0.3);
}

/* ===== Hero Section ===== */
.hero {
    padding: 100px 0 60px;
    background: var(--bg-dark);
    position: relative;
    overflow: visible;
    min-height: auto;
}

/* 背景光晕 */
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08) 0%, transparent 70%);
    pointer-events: none;
    animation: float 12s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    top: 20%;
    right: -100px;
    width: 550px;
    height: 550px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
    pointer-events: none;
    animation: float 15s ease-in-out infinite reverse;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: stretch;
}

.hero-content {
    max-width: 700px;
    animation: fadeInLeft 0.8s ease-out;
}

.hero-title {
    font-size: 2.25rem;
    line-height: 1.3;
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-align: center;
    letter-spacing: -0.02em;
}

.hero-title .highlight {
    color: var(--primary-color);
    font-weight: 600;
}

.hero-subtitle {
    font-size: 1.125rem;
    line-height: 1.8;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
    text-align: center;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    width: 100%;
}

.hero-cta .btn {
    flex: 1;
}

.hero-highlights {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.highlight-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 2rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.highlight-badge:hover {
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.4);
}

.highlight-badge i {
    color: var(--primary-color);
    font-size: 1.1rem;
}

.hero-stats {
    display: flex;
    width: 100%;
}

.stat-item {
    flex: 1;
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: 0.5rem;
}

.hero-image {
    display: flex;
    align-items: stretch;
    justify-content: center;
    animation: fadeInRight 0.8s ease-out 0.2s both;
    height: 100%;
}

/* Hero 动画窗口 */
.demo-window {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    width: 100%;
    max-width: 600px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.window-header {
    background: var(--bg-secondary);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.window-header .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
}

.window-content {
    padding: 1.5rem;
    flex: 1;
    background: var(--bg-tertiary);
    display: flex;
    flex-direction: column;
    overflow: auto;
}

.chat-preview {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    overflow-y: auto;
    justify-content: flex-start;
}

.chat-preview {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    padding: 0.6rem 1rem;
    border-radius: 0.75rem;
    max-width: 70%;
    font-size: 0.8rem;
    line-height: 1.4;
}

.message.user {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    align-self: flex-end;
    margin-left: auto;
    padding: 0.6rem 1rem;
    font-size: 0.8rem;
    line-height: 1.4;
    max-width: 70%;
    border-radius: 1rem 1rem 0.25rem 1rem;
}

.message.bot {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    align-self: flex-start;
}

.typing-indicator {
    display: flex;
    gap: 0.25rem;
    padding: 0.5rem 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
    animation: typing 1.4s infinite;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    50% {
        transform: translateY(-20px) translateX(-50%);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ===== Buttons ===== */
.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    border-color: var(--primary-color);
    background: rgba(143, 91, 255, 0.1);
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-block {
    width: 100%;
}

/* ===== Sections ===== */
section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== Features Section ===== */
.features {
    background: var(--bg-secondary);
}


.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    max-width: 1600px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2.5rem 2rem;
    border-radius: 1rem;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}


.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.2);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: rgba(99, 102, 241, 0.15);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

.feature-card:nth-child(1) .feature-icon {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.feature-card:nth-child(2) .feature-icon {
    background: rgba(16, 185, 129, 0.15);
    color: var(--secondary-color);
}

.feature-card:nth-child(3) .feature-icon {
    background: rgba(99, 102, 241, 0.15);
    color: var(--primary-color);
}

.feature-card:nth-child(4) .feature-icon {
    background: rgba(6, 182, 212, 0.15);
    color: var(--accent-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    flex-grow: 1;
}

.feature-list {
    margin-top: auto;
}

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

.feature-list li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.feature-list i {
    color: var(--accent-color);
}

/* ===== Benefits Section ===== */
.benefits {
    background: var(--bg-dark);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
}

.benefit-item {
    text-align: center;
}

.benefit-number {
    font-size: 2.875rem;
    font-weight: bold;
    color: var(--primary-color);
    opacity: 0.25;
    margin-bottom: 1.125rem;
}

.benefit-item h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.benefit-item p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* ===== Demo Section (Industry Scenarios) ===== */
.demo-section {
    background: var(--bg-secondary);
}

.industry-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.industry-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.5rem 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s;
    min-width: 140px;
}

.industry-tab i {
    font-size: 2rem;
    transition: all 0.3s;
}

.industry-tab:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(143, 91, 255, 0.3);
}

.industry-tab.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.industry-tab.active i {
    color: white;
}

.industry-demo-container {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 2rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    overflow: hidden;
}

.demo-sidebar {
    background: var(--bg-tertiary);
    padding: 2rem 1.5rem;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.demo-sidebar h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.scenario-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.scenario-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s;
    text-align: left;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.scenario-btn:hover {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.1);
    color: var(--text-primary);
}

.scenario-btn.active {
    border-color: var(--primary-color);
    background: rgba(99, 102, 241, 0.15);
    color: var(--text-primary);
}

.scenario-btn i {
    font-size: 1.25rem;
}

.industry-stats {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0.75rem;
}

.industry-stats h4 {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-row:last-child {
    border-bottom: none;
}

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

.stat-value {
    font-weight: 600;
    color: var(--accent-color);
}

/* Demo Chat */
.demo-chat {
    display: flex;
    flex-direction: column;
    height: 600px;
}

.chat-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    background: var(--bg-tertiary);
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-dot.online {
    background: var(--accent-color);
    box-shadow: 0 0 10px var(--accent-color);
}

.chat-messages {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.chat-message {
    display: flex;
    gap: 1rem;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.chat-message.user .message-avatar {
    background: var(--accent-color);
    order: 2;
}

.chat-message.user .message-content {
    text-align: right;
    flex: none;
    max-width: fit-content;
    margin-left: auto;
}

.message-content {
    flex: 1;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1rem 1.5rem;
    border-radius: 1rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.chat-message.user .message-content {
    background: var(--primary-color);
    border: none;
}

/* ===== Pricing Section ===== */
.pricing {
    background: var(--bg-dark);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.pricing-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 2.5rem;
    transition: all 0.3s;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 20px 60px rgba(143, 91, 255, 0.3);
}

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-card .badge {
    position: absolute;
    top: -15px;
    right: 2rem;
    background: var(--primary-color);
    color: white;
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.pricing-header {
    text-align: center;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.price {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
}

.price .currency {
    font-size: 1.5rem;
    color: var(--text-secondary);
}

.price .amount {
    font-size: 2.875rem;
    font-weight: bold;
    color: var(--primary-color);
}

.price .period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.price .custom {
    font-size: 2rem;
    font-weight: bold;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.pricing-features {
    list-style: none;
    margin-bottom: 2rem;
}

.pricing-features li {
    padding: 0.875rem 0;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.pricing-features i {
    color: var(--accent-color);
    font-size: 1.125rem;
}

/* ===== CTA Section ===== */
.cta {
    background: linear-gradient(135deg, var(--primary-dark) 0%, #000 100%);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(143, 91, 255, 0.2) 0%, transparent 70%);
    pointer-events: none;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    position: relative;
    z-index: 1;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.75rem;
}

.footer-col a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-col a:hover {
    color: var(--text-primary);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.social-links a:hover {
    background: rgba(143, 91, 255, 0.2);
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo img {
    height: 32px;
    width: auto;
}

.footer-desc {
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-tertiary);
    line-height: 1.6;
}

.footer-col ul li a i {
    margin-right: 0.5rem;
    width: 16px;
}

.footer-col ul li a .fa-external-link-alt {
    font-size: 0.75rem;
    margin-left: 0.25rem;
    margin-right: 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-links a {
    color: var(--text-tertiary);
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    padding: 3rem;
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: fadeInUp 0.3s;
}

.modal-content h2 {
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: color 0.3s;
}

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

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    font-size: 1rem;
    font-family: inherit;
    color: var(--text-primary);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(143, 91, 255, 0.2);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 1.25rem;
    }
    
    .hero {
        padding: 80px 0 40px;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-content {
        max-width: 100%;
        text-align: left;
        order: -1;
    }
    
    .hero-title {
        font-size: 1.75rem;
        text-align: left;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        text-align: left;
        line-height: 1.6;
    }
    
    .hero-stats {
        justify-content: flex-start;
        gap: 2.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 0.8rem;
    }
    
    .hero-cta {
        flex-direction: row;
        gap: 0.75rem;
    }
    
    .hero-cta .btn {
        flex: 1;
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .hero-image {
        order: 1;
    }
    
    .demo-window {
        max-width: 100%;
    }
    
    .window-content {
        height: 380px;
        padding: 1.25rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .industry-demo-container {
        grid-template-columns: 1fr;
    }
    
    .demo-chat {
        height: 450px;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .section-subtitle {
        font-size: 0.9rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .benefits-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .feature-card,
    .benefit-item,
    .pricing-card {
        padding: 1.5rem;
    }
}

/* ===== Data Analytics Specific Styles ===== */
.chat-response {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.response-header {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.response-header strong {
    color: var(--primary-color);
    font-size: 1rem;
}

.response-time {
    font-size: 0.75rem;
    color: var(--text-tertiary);
}

.response-content {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.metric-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 0.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: all 0.3s ease;
}

.metric-row:hover {
    border-color: rgba(99, 102, 241, 0.3);
    background: rgba(99, 102, 241, 0.05);
}

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

.metric-values {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.metric-value {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-primary);
}

.metric-change {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-weight: 600;
}

.metric-change.positive {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.metric-change.negative {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}
        /* Advanced Chart Styles - Compact Version */
        .message.bot {
            max-width: 98%;
        }

        .chart-response {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.05) 0%, rgba(6, 182, 212, 0.05) 100%);
            border-radius: 0.75rem;
            padding: 0.75rem;
            border: 1px solid rgba(99, 102, 241, 0.2);
        }

        .chart-header {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.75rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        }

        .chart-icon {
            font-size: 1.25rem;
            background: linear-gradient(135deg, #6366F1, #06B6D4);
            width: 2rem;
            height: 2rem;
            border-radius: 0.375rem;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .chart-title-group h4 {
            color: var(--text-primary);
            font-size: 0.9rem;
            font-weight: 700;
            margin: 0;
        }

        .chart-subtitle {
            font-size: 0.7rem;
            color: var(--text-tertiary);
            margin: 0.15rem 0 0 0;
        }

        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 0.5rem;
        }

        .metric-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 0.5rem;
            padding: 0.6rem;
            position: relative;
            overflow: hidden;
            transition: all 0.3s ease;
        }

        .metric-card:hover {
            border-color: rgba(99, 102, 241, 0.4);
            transform: translateY(-2px);
            box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
        }

        .metric-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, #6366F1, #06B6D4);
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .metric-card:hover::before {
            opacity: 1;
        }

        .metric-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 0.3rem;
        }

        .metric-name {
            font-size: 0.7rem;
            color: var(--text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.3px;
            font-weight: 600;
        }

        .metric-icon {
            font-size: 1rem;
            opacity: 0.6;
        }

        .metric-main {
            display: flex;
            align-items: baseline;
            gap: 0.4rem;
            margin-bottom: 0.4rem;
        }

        .metric-number {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text-primary);
            line-height: 1;
        }

        .metric-trend {
            display: inline-flex;
            align-items: center;
            gap: 0.2rem;
            padding: 0.15rem 0.35rem;
            border-radius: 0.25rem;
            font-size: 0.65rem;
            font-weight: 700;
        }

        .metric-trend.up {
            background: rgba(16, 185, 129, 0.15);
            color: #10B981;
        }

        .metric-trend.down {
            background: rgba(239, 68, 68, 0.15);
            color: #EF4444;
        }

        .metric-trend i {
            font-size: 0.7rem;
        }

        .metric-bar {
            width: 100%;
            height: 4px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 2px;
            overflow: hidden;
            position: relative;
        }

        .metric-bar-fill {
            height: 100%;
            background: linear-gradient(90deg, #6366F1, #06B6D4);
            border-radius: 3px;
            transition: width 1s ease;
            position: relative;
        }

        .metric-bar-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%); }
        }

        .metric-comparison {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: 0.5rem;
            font-size: 0.7rem;
            color: var(--text-tertiary);
        }

        .comparison-label {
            opacity: 0.8;
        }

        .comparison-value {
            color: var(--text-secondary);
            font-weight: 600;
        }

        /* Integrated Analysis Layout */
        .integrated-analysis {
            margin-top: 0.75rem;
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 0.5rem;
        }

        .analysis-left, .analysis-right {
            background: rgba(255, 255, 255, 0.02);
            border-radius: 0.5rem;
            padding: 0.6rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        /* Mini Trend */
        .mini-trend {
            margin-bottom: 0.5rem;
        }

        .mini-trend-header {
            font-size: 0.65rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .mini-bars {
            display: flex;
            align-items: flex-end;
            gap: 0.3rem;
            height: 50px;
            padding: 0.2rem 0;
        }

        .mini-bar {
            flex: 1;
            background: linear-gradient(180deg, rgba(99, 102, 241, 0.6), rgba(99, 102, 241, 0.2));
            border-radius: 0.2rem 0.2rem 0 0;
            position: relative;
            transition: all 0.3s ease;
            min-height: 15px;
        }

        .mini-bar:hover {
            background: linear-gradient(180deg, rgba(99, 102, 241, 0.8), rgba(99, 102, 241, 0.3));
        }

        .mini-bar::after {
            content: attr(data-value);
            position: absolute;
            top: -1rem;
            left: 50%;
            transform: translateX(-50%);
            font-size: 0.55rem;
            color: var(--text-primary);
            font-weight: 600;
            white-space: nowrap;
            opacity: 0;
            transition: opacity 0.3s ease;
        }

        .mini-bar:hover::after {
            opacity: 1;
        }

        .mini-labels {
            display: flex;
            justify-content: space-between;
            margin-top: 0.25rem;
            font-size: 0.55rem;
            color: var(--text-tertiary);
        }

        /* Dual Comparison */
        .dual-comparison {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 0.5rem;
        }

        .compact-section {
            background: rgba(255, 255, 255, 0.02);
            border-radius: 0.375rem;
            padding: 0.5rem;
            border: 1px solid rgba(255, 255, 255, 0.05);
            min-width: 0;
        }

        .compact-header {
            font-size: 0.65rem;
            font-weight: 600;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 0.4rem;
            gap: 0.3rem;
        }

        .compact-total {
            font-size: 0.6rem;
            color: var(--text-tertiary);
        }

        .compact-items {
            display: flex;
            flex-direction: column;
            gap: 0.3rem;
            width: 100%;
        }

        .compact-item {
            display: grid;
            grid-template-columns: 3.5rem 1fr 1.5rem;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.65rem;
            width: 100%;
        }

        .c-label {
            color: var(--text-secondary);
            font-size: 0.65rem;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .c-bar {
            width: 100%;
            height: 14px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 0.2rem;
            display: flex;
            align-items: center;
            justify-content: flex-end;
            padding: 0 0.3rem;
            position: relative;
            overflow: hidden;
        }
        
        .c-bar::before {
            content: '';
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            width: var(--bar-width, 100%);
            background: linear-gradient(90deg, #6366F1, #06B6D4);
            border-radius: 0.2rem;
            z-index: 0;
        }

        .c-bar span {
            font-size: 0.55rem;
            color: white;
            font-weight: 700;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
            white-space: nowrap;
            position: relative;
            z-index: 1;
        }

        .c-pct {
            text-align: right;
            color: var(--text-tertiary);
            font-size: 0.65rem;
            white-space: nowrap;
        }

        /* Vertical Segments */
        .vertical-segments {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
        }

        .v-segment {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 0.375rem;
            padding: 0.4rem 0.5rem;
            border: 1px solid rgba(255, 255, 255, 0.05);
            transition: all 0.3s ease;
        }

        .v-segment:hover {
            border-color: rgba(99, 102, 241, 0.4);
            background: rgba(99, 102, 241, 0.05);
        }

        .v-segment-emoji {
            font-size: 1.5rem;
            flex-shrink: 0;
        }

        .v-segment-info {
            flex: 1;
            display: grid;
            grid-template-columns: 1fr auto;
            gap: 0.4rem;
            align-items: center;
        }

        .v-segment-label {
            font-size: 0.65rem;
            color: var(--text-tertiary);
        }

        .v-segment-value {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
            grid-column: 1;
            grid-row: 2;
        }

        .v-segment-change {
            font-size: 0.55rem;
            grid-column: 2;
            grid-row: 1 / 3;
            text-align: right;
        }

        .v-segment-change.up {
            color: #10B981;
        }

        .v-segment-change.down {
            color: #EF4444;
        }

        /* Action Recommendations */
        .actions-section {
            margin-top: 0.75rem;
            padding: 0.6rem;
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.08), rgba(6, 182, 212, 0.08));
            border-radius: 0.5rem;
            border: 1px solid rgba(16, 185, 129, 0.25);
        }

        .actions-title {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--success);
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .action-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 0.4rem;
        }

        .action-card {
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 0.375rem;
            padding: 0.5rem;
            transition: all 0.3s ease;
            overflow: hidden;
        }

        .action-card:hover {
            border-color: rgba(16, 185, 129, 0.4);
            background: rgba(16, 185, 129, 0.05);
        }

        .action-header {
            display: flex;
            align-items: center;
            gap: 0.3rem;
            margin-bottom: 0.25rem;
        }

        .action-badge {
            font-size: 0.55rem;
            padding: 0.15rem 0.35rem;
            border-radius: 0.25rem;
            font-weight: 600;
        }

        .action-badge.high {
            background: rgba(239, 68, 68, 0.15);
            color: #EF4444;
        }

        .action-badge.medium {
            background: rgba(249, 115, 22, 0.15);
            color: #F97316;
        }

        .action-label {
            font-size: 0.65rem;
            font-weight: 600;
            color: var(--text-primary);
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        .action-desc {
            font-size: 0.6rem;
            color: var(--text-secondary);
            line-height: 1.3;
            overflow: hidden;
            text-overflow: ellipsis;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }

        /* Insights */
        .insights-section {
            margin-top: 0.75rem;
            padding: 0.6rem;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.08), rgba(6, 182, 212, 0.08));
            border-radius: 0.5rem;
            border: 1px solid rgba(99, 102, 241, 0.2);
        }

        .insights-title {
            font-size: 0.7rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.4rem;
            display: flex;
            align-items: center;
            gap: 0.3rem;
        }

        .insight-item {
            display: flex;
            align-items: start;
            gap: 0.35rem;
            margin-bottom: 0.3rem;
            font-size: 0.65rem;
            line-height: 1.3;
            overflow: hidden;
        }

        .insight-icon {
            margin-top: 0.05rem;
            flex-shrink: 0;
            font-size: 0.7rem;
        }

        .insight-text {
            color: var(--text-secondary);
            line-height: 1.4;
            word-break: break-word;
        }
        
        .demo-window {
            contain: layout style;
        }
        
        .window-content {
            height: 380px;
            overflow: hidden;
            contain: strict;
        }
        
        .chat-preview {
            height: 100%;
            overflow-y: auto;
            overflow-x: hidden;
        }

        /* Why Section - Professional Animated */
        .why-section {
            padding: 2.5rem 0;
            background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-dark) 100%);
            position: relative;
            overflow: hidden;
        }

        .why-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.5), transparent);
        }

        /* ========================================
           流程图动画对比 - 角色动画样式
           ======================================== */
        
        .workflow-comparison {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 2rem;
            margin: 2rem 0;
            align-items: stretch;
        }

        .workflow-track {
            background: rgba(255, 255, 255, 0.02);
            border-radius: 0.75rem;
            padding: 1rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            flex-direction: column;
            box-sizing: border-box;
        }

        .workflow-track.traditional {
            border-color: rgba(239, 68, 68, 0.2);
        }

        .workflow-track.softprobe {
            border-color: rgba(16, 185, 129, 0.3);
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.05), rgba(6, 182, 212, 0.05));
        }

        .workflow-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 0.75rem;
            padding-bottom: 0.5rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .workflow-badge {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.4rem 0.875rem;
            border-radius: 2rem;
        }

        .workflow-badge.bad {
            background: rgba(239, 68, 68, 0.15);
            color: #EF4444;
        }

        .workflow-badge.good {
            background: rgba(16, 185, 129, 0.15);
            color: #10B981;
        }

        .workflow-time {
            font-size: 1rem;
            font-weight: 700;
            color: var(--text-secondary);
        }

        .workflow-time.highlight {
            color: #10B981;
            animation: glowPulse 2s ease-in-out infinite;
        }

        @keyframes glowPulse {
            0%, 100% { text-shadow: 0 0 10px rgba(16, 185, 129, 0.5); }
            50% { text-shadow: 0 0 25px rgba(16, 185, 129, 0.8); }
        }

        /* 时间轴容器 */
        .workflow-timeline {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 0;
            flex: 1;
            padding: 1rem 0;
        }

        .workflow-timeline.simple {
            justify-content: center;
            gap: 2rem;
        }

        /* 步骤卡片 */
        .workflow-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            flex: 1;
            max-width: 120px;
            opacity: 0;
            transform: translateY(20px);
            animation: stepFadeIn 0.6s ease forwards;
        }

        .workflow-step[data-step="1"] { animation-delay: 0.2s; }
        .workflow-step[data-step="2"] { animation-delay: 0.8s; }
        .workflow-step[data-step="3"] { animation-delay: 1.4s; }
        .workflow-step[data-step="4"] { animation-delay: 2s; }
        .workflow-step[data-step="5"] { animation-delay: 2.6s; }

        .workflow-step.fast[data-step="1"] { animation-delay: 0.2s; }
        .workflow-step.fast[data-step="2"] { animation-delay: 0.5s; }
        .workflow-step.fast[data-step="3"] { animation-delay: 0.8s; }
        .workflow-step.fast[data-step="4"] { animation-delay: 1.1s; }

        @keyframes stepFadeIn {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* 场景容器 */
        .step-scene {
            width: 85px;
            height: 85px;
            position: relative;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 0.75rem;
            border: 1px solid rgba(255, 255, 255, 0.06);
            flex-shrink: 0;
        }

        /* ========== Lottie 动画场景 ========== */
        .lottie-scene {
            overflow: hidden;
        }

        .lottie-scene dotlottie-player {
            position: relative;
            z-index: 2;
        }

        .lottie-fallback {
            display: none !important;
        }

        .lottie-scene.lottie-error dotlottie-player {
            display: none;
        }

        /* 用户场景样式 */
        .user-scene {
            flex-direction: column;
            gap: 0.25rem;
        }

        .user-scene .chat-bubble {
            position: relative;
            margin-top: -10px;
        }

        /* AI场景样式 */
        .ai-scene {
            flex-direction: column;
            gap: 0.25rem;
        }

        .ai-scene .chat-bubble {
            position: relative;
            margin-top: -10px;
        }

        /* ========== 角色动画 (CSS备用) ========== */
        .character {
            position: relative;
            width: 40px;
            height: 50px;
        }

        .char-head {
            width: 20px;
            height: 20px;
            background: #FFD93D;
            border-radius: 50%;
            position: absolute;
            top: 0;
            left: 50%;
            transform: translateX(-50%);
            box-shadow: inset -3px -3px 0 rgba(0, 0, 0, 0.1);
        }

        .char-head::before {
            content: '😐';
            font-size: 14px;
            position: absolute;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .char-head.smile::before { content: '😊'; }
        .char-head.bored::before { content: '😩'; }
        .char-head.thinking::before { content: '🤔'; }

        .char-body {
            width: 24px;
            height: 22px;
            background: linear-gradient(135deg, #6366F1, #8B5CF6);
            border-radius: 8px 8px 4px 4px;
            position: absolute;
            top: 18px;
            left: 50%;
            transform: translateX(-50%);
        }

        .workflow-track.traditional .char-body {
            background: linear-gradient(135deg, #EF4444, #DC2626);
        }

        .workflow-track.softprobe .char-body {
            background: linear-gradient(135deg, #10B981, #059669);
        }

        .char-arm {
            width: 6px;
            height: 16px;
            background: #FFD93D;
            border-radius: 3px;
            position: absolute;
            top: 20px;
            transform-origin: top center;
        }

        .char-arm.left {
            left: 2px;
        }

        .char-arm.right {
            right: 2px;
        }

        /* 打字动画 */
        .char-arm.typing {
            animation: typing 0.5s ease-in-out infinite;
        }

        @keyframes typing {
            0%, 100% { transform: rotate(-20deg); }
            50% { transform: rotate(-40deg); }
        }

        /* 敲代码动画 */
        .char-arm.coding {
            animation: coding 0.3s ease-in-out infinite;
        }

        .char-arm.coding.left {
            animation-delay: 0.15s;
        }

        @keyframes coding {
            0%, 100% { transform: rotate(-30deg); }
            50% { transform: rotate(-50deg); }
        }

        /* 挥手动画 */
        .char-arm.wave {
            animation: wave 0.8s ease-in-out infinite;
        }

        @keyframes wave {
            0%, 100% { transform: rotate(-60deg); }
            50% { transform: rotate(-100deg); }
        }

        /* 挠头动画 */
        .char-arm.scratch {
            animation: scratch 1s ease-in-out infinite;
            transform-origin: bottom center;
        }

        @keyframes scratch {
            0%, 100% { transform: rotate(-60deg) translateY(-5px); }
            50% { transform: rotate(-80deg) translateY(-8px); }
        }

        /* ========== 场景物品 ========== */
        
        /* 文档 */
        .scene-item.document {
            position: absolute;
            right: 10px;
            bottom: 15px;
            width: 25px;
            height: 30px;
            background: white;
            border-radius: 2px;
            padding: 4px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .doc-lines {
            display: flex;
            flex-direction: column;
            gap: 3px;
        }

        .doc-line {
            height: 2px;
            background: #ccc;
            border-radius: 1px;
            animation: docWrite 2s ease-in-out infinite;
        }

        .doc-line.short {
            width: 60%;
        }

        @keyframes docWrite {
            0%, 100% { width: 0; }
            50% { width: 100%; }
        }

        /* 笔记本电脑 */
        .scene-item.laptop {
            position: absolute;
            right: 5px;
            bottom: 10px;
            width: 35px;
            height: 25px;
        }

        .laptop-screen {
            width: 100%;
            height: 20px;
            background: #1a1a2e;
            border-radius: 3px 3px 0 0;
            padding: 3px;
            display: flex;
            flex-direction: column;
            gap: 2px;
        }

        .code-line {
            height: 2px;
            background: #10B981;
            border-radius: 1px;
            animation: codeType 1s ease-in-out infinite;
        }

        .code-line.short {
            width: 50%;
        }

        .code-line:nth-child(2) { animation-delay: 0.2s; }
        .code-line:nth-child(3) { animation-delay: 0.4s; }

        @keyframes codeType {
            0%, 100% { opacity: 0.3; }
            50% { opacity: 1; }
        }

        /* 时钟 */
        .scene-item.clock {
            position: absolute;
            right: 10px;
            top: 15px;
            width: 30px;
            height: 30px;
        }

        .clock-face {
            width: 100%;
            height: 100%;
            background: white;
            border-radius: 50%;
            position: relative;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
        }

        .clock-hand {
            position: absolute;
            bottom: 50%;
            left: 50%;
            transform-origin: bottom center;
            background: #333;
            border-radius: 2px;
        }

        .clock-hand.hour {
            width: 2px;
            height: 8px;
            animation: hourHand 10s linear infinite;
        }

        .clock-hand.minute {
            width: 1.5px;
            height: 11px;
            animation: minuteHand 2s linear infinite;
        }

        @keyframes hourHand {
            from { transform: translateX(-50%) rotate(0deg); }
            to { transform: translateX(-50%) rotate(360deg); }
        }

        @keyframes minuteHand {
            from { transform: translateX(-50%) rotate(0deg); }
            to { transform: translateX(-50%) rotate(360deg); }
        }

        /* 数据库 */
        .scene-item.database {
            position: absolute;
            right: 10px;
            bottom: 15px;
        }

        .db-cylinder {
            width: 25px;
            height: 30px;
            position: relative;
        }

        .db-top {
            width: 25px;
            height: 8px;
            background: #6366F1;
            border-radius: 50%;
            position: absolute;
            top: 0;
        }

        .db-body {
            width: 25px;
            height: 22px;
            background: linear-gradient(90deg, #4F46E5, #6366F1, #4F46E5);
            border-radius: 0 0 12px 12px;
            position: absolute;
            top: 4px;
        }

        /* SQL代码 */
        .sql-code {
            position: absolute;
            bottom: 5px;
            left: 5px;
            font-size: 6px;
            font-family: monospace;
            color: #10B981;
            background: rgba(0, 0, 0, 0.3);
            padding: 2px 4px;
            border-radius: 2px;
            animation: sqlBlink 1s ease-in-out infinite;
        }

        @keyframes sqlBlink {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }

        /* 思考气泡 */
        .thought-bubble {
            position: absolute;
            top: -5px;
            right: -5px;
            font-size: 16px;
            animation: thoughtFloat 2s ease-in-out infinite;
        }

        @keyframes thoughtFloat {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-5px); }
        }

        /* Zzz 睡眠动画 */
        .zzz {
            position: absolute;
            top: 5px;
            left: 5px;
            display: flex;
            flex-direction: column;
            font-size: 10px;
            font-weight: bold;
            color: var(--text-tertiary);
        }

        .zzz span {
            opacity: 0;
            animation: zzzFloat 2s ease-in-out infinite;
        }

        .zzz span:nth-child(1) { animation-delay: 0s; font-size: 12px; }
        .zzz span:nth-child(2) { animation-delay: 0.3s; font-size: 10px; margin-left: 5px; }
        .zzz span:nth-child(3) { animation-delay: 0.6s; font-size: 8px; margin-left: 10px; }

        @keyframes zzzFloat {
            0% { opacity: 0; transform: translateY(5px); }
            50% { opacity: 1; }
            100% { opacity: 0; transform: translateY(-10px); }
        }

        /* ========== SoftProbe 特效 ========== */
        
        /* 聊天气泡 */
        .chat-bubble {
            position: absolute;
            padding: 6px 10px;
            border-radius: 10px;
            font-size: 8px;
            font-weight: 600;
            max-width: 80px;
            animation: bubblePop 0.5s ease forwards;
        }

        .user-bubble {
            background: linear-gradient(135deg, #6366F1, #8B5CF6);
            color: white;
            right: -10px;
            top: 5px;
            border-bottom-right-radius: 4px;
        }

        .ai-bubble {
            background: rgba(255, 255, 255, 0.95);
            color: #1a1a2e;
            left: -15px;
            bottom: 5px;
            border-bottom-left-radius: 4px;
        }

        @keyframes bubblePop {
            0% { transform: scale(0); opacity: 0; }
            50% { transform: scale(1.1); }
            100% { transform: scale(1); opacity: 1; }
        }

        /* AI头像 */
        .ai-avatar {
            position: relative;
            width: 50px;
            height: 50px;
        }

        .ai-ring {
            position: absolute;
            inset: 0;
            border: 2px solid transparent;
            border-top-color: #10B981;
            border-radius: 50%;
            animation: aiSpin 2s linear infinite;
        }

        @keyframes aiSpin {
            from { transform: rotate(0deg); }
            to { transform: rotate(360deg); }
        }

        .ai-core {
            position: absolute;
            inset: 5px;
            background: linear-gradient(135deg, #10B981, #06B6D4);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            animation: aiPulse 2s ease-in-out infinite;
        }

        @keyframes aiPulse {
            0%, 100% { box-shadow: 0 0 10px rgba(16, 185, 129, 0.5); }
            50% { box-shadow: 0 0 25px rgba(16, 185, 129, 0.8); }
        }

        .ai-particles {
            position: absolute;
            inset: 0;
        }

        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: #10B981;
            border-radius: 50%;
            opacity: 0;
            animation: particleOrbit 3s linear infinite;
        }

        .particle:nth-child(1) { animation-delay: 0s; }
        .particle:nth-child(2) { animation-delay: 1s; }
        .particle:nth-child(3) { animation-delay: 2s; }

        @keyframes particleOrbit {
            0% {
                transform: rotate(0deg) translateX(30px) rotate(0deg);
                opacity: 1;
            }
            100% {
                transform: rotate(360deg) translateX(30px) rotate(-360deg);
                opacity: 0;
            }
        }

        /* 结果预览 */
        .result-preview {
            text-align: center;
        }

        .result-stat {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .result-stat .stat-value {
            font-size: 10px;
            font-weight: 700;
            color: #1a1a2e;
        }

        .result-stat .stat-change {
            font-size: 7px;
            padding: 1px 3px;
            border-radius: 3px;
        }

        .result-stat .stat-change.up {
            background: rgba(16, 185, 129, 0.2);
            color: #059669;
        }

        /* 箭头 */
        .workflow-arrow {
            flex: 0 0 30px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-tertiary);
            opacity: 0;
            animation: arrowFadeIn 0.3s ease forwards;
        }

        .workflow-arrow svg {
            width: 20px;
            height: 20px;
        }

        .workflow-step[data-step="1"] ~ .workflow-arrow { animation-delay: 0.5s; }
        .workflow-step[data-step="2"] ~ .workflow-arrow { animation-delay: 1.1s; }
        .workflow-step[data-step="3"] ~ .workflow-arrow { animation-delay: 1.7s; }

        .workflow-arrow.fast {
            position: relative;
        }

        .workflow-arrow.fast svg {
            color: #10B981;
        }

        @keyframes arrowFadeIn {
            to { opacity: 1; }
        }

        /* 火花轨迹 */
        .spark-trail {
            position: absolute;
            display: flex;
            gap: 5px;
        }

        .spark {
            width: 4px;
            height: 4px;
            background: #FFD93D;
            border-radius: 50%;
            animation: sparkFly 1s ease-in-out infinite;
        }

        .spark:nth-child(1) { animation-delay: 0s; }
        .spark:nth-child(2) { animation-delay: 0.2s; }
        .spark:nth-child(3) { animation-delay: 0.4s; }

        @keyframes sparkFly {
            0%, 100% { opacity: 0; transform: translateX(-10px); }
            50% { opacity: 1; transform: translateX(10px); }
        }

        /* 结果状态 */
        .workflow-result {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.4rem;
            padding: 0.5rem;
            border-radius: 0.375rem;
            margin-top: auto;
            font-size: 0.8rem;
            font-weight: 600;
        }

        .workflow-result.bad {
            background: rgba(239, 68, 68, 0.1);
            color: #EF4444;
        }

        .workflow-result.good {
            background: rgba(16, 185, 129, 0.15);
            color: #10B981;
            animation: resultGlow 2s ease-in-out infinite;
        }

        @keyframes resultGlow {
            0%, 100% { box-shadow: 0 0 10px rgba(16, 185, 129, 0.2); }
            50% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.4); }
        }

        .result-icon {
            font-size: 1.2rem;
        }

        /* VS 分隔 */
        .vs-divider {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 0 0.5rem;
            gap: 0;
        }

        .vs-badge {
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.8rem;
            font-weight: 700;
            color: white;
            box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
        }

        .vs-badge.pulse {
            animation: vsBadgePulse 2s ease-in-out infinite;
        }

        @keyframes vsBadgePulse {
            0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(99, 102, 241, 0.4); }
            50% { transform: scale(1.1); box-shadow: 0 0 30px rgba(99, 102, 241, 0.6); }
        }


        /* How Section - 工作原理 */
        .how-section {
            padding: 3rem 0;
            background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-secondary) 100%);
            position: relative;
        }

        .how-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(99, 102, 241, 0.4), transparent);
        }

        /* 核心洞察 */
        .how-insight {
            margin: 1.5rem 0;
        }

        .insight-box {
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(6, 182, 212, 0.08));
            border: 1px solid rgba(99, 102, 241, 0.35);
            border-radius: 1rem;
            padding: 1.5rem 2rem;
            text-align: center;
            position: relative;
            overflow: hidden;
            box-shadow: 0 8px 32px rgba(99, 102, 241, 0.15);
        }

        .insight-box::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle, rgba(99, 102, 241, 0.1) 0%, transparent 70%);
            animation: insightGlow 4s ease-in-out infinite;
        }

        @keyframes insightGlow {
            0%, 100% { transform: translate(0, 0); }
            50% { transform: translate(10%, 10%); }
        }

        .insight-title {
            font-size: 1.1rem;
            font-weight: 700;
            color: var(--primary-color);
            margin-bottom: 0.75rem;
            position: relative;
            z-index: 1;
        }

        .insight-content {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.7;
            position: relative;
            z-index: 1;
        }

        .insight-content strong {
            color: var(--text-primary);
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.15));
            padding: 0.1rem 0.4rem;
            border-radius: 0.25rem;
        }

        /* 可视化展示 */
        .how-visual {
            display: grid;
            grid-template-columns: 1.2fr auto 0.8fr auto 1fr;
            gap: 0.5rem;
            margin: 2rem 0;
            align-items: center;
        }

        /* 连接线样式 */
        .connection-line {
            display: flex;
            flex-direction: column;
            align-items: center;
            padding: 0 0.25rem;
        }

        .connection-line svg {
            width: 60px;
            height: 50px;
            overflow: visible;
        }

        .connection-line .flow-path {
            stroke-dasharray: 200;
            stroke-dashoffset: 200;
            animation: flowDash 2s ease-out forwards, flowPulse 3s ease-in-out infinite 2s;
        }

        @keyframes flowDash {
            to {
                stroke-dashoffset: 0;
            }
        }

        @keyframes flowPulse {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.6;
            }
        }

        .connection-label {
            font-size: 0.6rem;
            color: rgba(255, 255, 255, 0.8);
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(6, 182, 212, 0.2));
            padding: 0.25rem 0.5rem;
            border-radius: 0.25rem;
            margin-top: 0.25rem;
            white-space: nowrap;
            backdrop-filter: blur(4px);
            border: 1px solid rgba(99, 102, 241, 0.3);
            text-align: center;
        }

        /* 连接线动画延迟 */
        .line-api-to-sp .flow-path {
            animation-delay: 0.5s;
        }

        .line-sp-to-query .flow-path {
            animation-delay: 1.5s;
        }

        /* API示例 */
        .api-example {
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
            border: 1px solid rgba(6, 182, 212, 0.25);
            border-radius: 1rem;
            overflow: hidden;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease 0.2s forwards;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.05);
            transition: all 0.3s ease;
        }

        .api-example:hover {
            border-color: rgba(6, 182, 212, 0.4);
            box-shadow: 0 8px 30px rgba(6, 182, 212, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.05);
            transform: translateY(-2px);
        }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .api-header {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding: 0.75rem 1rem;
            background: linear-gradient(90deg, rgba(6, 182, 212, 0.1), rgba(99, 102, 241, 0.05));
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .api-method {
            font-size: 0.65rem;
            font-weight: 700;
            padding: 0.25rem 0.5rem;
            background: linear-gradient(135deg, rgba(16, 185, 129, 0.25), rgba(6, 182, 212, 0.2));
            color: #10B981;
            border-radius: 0.375rem;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .api-path {
            font-size: 0.8rem;
            font-family: 'Monaco', 'Menlo', monospace;
            color: var(--text-primary);
            font-weight: 500;
        }

        .api-badge {
            margin-left: auto;
            font-size: 0.6rem;
            padding: 0.2rem 0.5rem;
            background: rgba(6, 182, 212, 0.15);
            color: #06B6D4;
            border-radius: 1rem;
            border: 1px solid rgba(6, 182, 212, 0.2);
        }

        .api-body {
            padding: 1rem;
        }

        .json-view {
            background: linear-gradient(145deg, rgba(0, 0, 0, 0.4), rgba(0, 0, 0, 0.3));
            border-radius: 0.75rem;
            overflow: hidden;
            border: 1px solid rgba(255, 255, 255, 0.05);
        }

        .json-title {
            font-size: 0.7rem;
            color: var(--text-tertiary);
            padding: 0.5rem 1rem;
            background: rgba(255, 255, 255, 0.03);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            display: flex;
            align-items: center;
            gap: 0.4rem;
        }

        .json-title::before {
            content: '📄';
            font-size: 0.8rem;
        }

        .json-content {
            font-size: 0.75rem;
            line-height: 1.7;
            padding: 1rem;
            margin: 0;
            font-family: 'Monaco', 'Menlo', 'Consolas', monospace;
            color: var(--text-secondary);
            overflow-x: auto;
        }

        .json-brace { color: var(--text-tertiary); }
        .json-key { color: #F472B6; }
        .json-string { color: #34D399; }
        .json-number { color: #60A5FA; font-weight: 600; }

        .highlight-field { 
            background: rgba(99, 102, 241, 0.25);
            padding: 0.1rem 0.3rem;
            border-radius: 0.25rem;
            box-shadow: 0 0 8px rgba(99, 102, 241, 0.3);
        }
        .highlight-value {
            background: rgba(16, 185, 129, 0.25);
            padding: 0.1rem 0.3rem;
            border-radius: 0.25rem;
            box-shadow: 0 0 8px rgba(16, 185, 129, 0.3);
        }

        .field-tag {
            color: #FBBF24;
            font-size: 0.65rem;
            font-weight: 600;
            font-style: normal;
            margin-left: 0.75rem;
            animation: tagPulse 2s ease-in-out infinite;
        }

        @keyframes tagPulse {
            0%, 100% { opacity: 0.7; }
            50% { opacity: 1; }
        }

        .api-insight {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-top: 1rem;
            padding: 0.75rem 1rem;
            background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(6, 182, 212, 0.1));
            border-radius: 0.75rem;
            border: 1px dashed rgba(99, 102, 241, 0.4);
            animation: insightBorder 3s ease-in-out infinite;
        }

        @keyframes insightBorder {
            0%, 100% { border-color: rgba(99, 102, 241, 0.4); }
            50% { border-color: rgba(6, 182, 212, 0.5); }
        }

        .api-insight .insight-icon {
            font-size: 1.5rem;
            animation: magnifyPulse 2s ease-in-out infinite;
        }

        @keyframes magnifyPulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.15); }
        }

        .api-insight span:last-child {
            font-size: 0.8rem;
            color: var(--text-secondary);
            line-height: 1.5;
            font-weight: 500;
        }

        /* 中间：理解流程 */
        .understanding-flow {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.75rem;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease 0.4s forwards;
        }

        .flow-arrow-down {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.3rem;
            color: var(--primary-color);
        }

        .flow-arrow-down svg {
            width: 24px;
            height: 35px;
            animation: arrowBounce 1.5s ease-in-out infinite;
            filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.4));
        }

        @keyframes arrowBounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(6px); }
        }

        .flow-arrow-down span {
            font-size: 0.7rem;
            color: var(--text-secondary);
            font-weight: 500;
            background: rgba(99, 102, 241, 0.1);
            padding: 0.2rem 0.6rem;
            border-radius: 1rem;
        }

        .understanding-box {
            background: linear-gradient(145deg, rgba(99, 102, 241, 0.12), rgba(6, 182, 212, 0.08));
            border: 1px solid rgba(99, 102, 241, 0.35);
            border-radius: 1rem;
            padding: 1.25rem;
            width: 100%;
            box-shadow: 0 8px 24px rgba(99, 102, 241, 0.12);
            position: relative;
            overflow: hidden;
        }

        .understanding-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 3px;
            background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
        }

        .understand-header {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            padding-bottom: 0.75rem;
            border-bottom: 1px solid rgba(255, 255, 255, 0.1);
            margin-bottom: 1rem;
        }

        .understand-header img {
            filter: brightness(1.2);
        }

        .understand-header span {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-primary);
        }

        .understand-content {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .understand-item {
            display: flex;
            align-items: flex-start;
            gap: 0.75rem;
            padding: 0.5rem;
            border-radius: 0.5rem;
            transition: all 0.3s ease;
        }

        .understand-item:hover {
            background: rgba(255, 255, 255, 0.03);
        }

        .understand-step {
            width: 24px;
            height: 24px;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.7rem;
            font-weight: 700;
            color: white;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
        }

        .understand-text {
            display: flex;
            flex-direction: column;
            gap: 0.2rem;
        }

        .understand-text strong {
            font-size: 0.8rem;
            color: var(--text-primary);
            font-weight: 600;
        }

        .understand-text span {
            font-size: 0.7rem;
            color: var(--accent-color);
            font-family: 'Monaco', 'Menlo', monospace;
            background: rgba(6, 182, 212, 0.1);
            padding: 0.15rem 0.4rem;
            border-radius: 0.25rem;
            display: inline-block;
        }

        /* 右侧：查询示例 */
        .query-example {
            display: flex;
            flex-direction: column;
            gap: 1rem;
            opacity: 0;
            transform: translateY(20px);
            animation: fadeInUp 0.6s ease 0.6s forwards;
        }

        .user-query {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
        }

        .query-avatar {
            font-size: 1.75rem;
            filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
        }

        .query-bubble {
            background: linear-gradient(135deg, #6366F1, #8B5CF6);
            color: white;
            padding: 0.75rem 1.25rem;
            border-radius: 1.25rem 1.25rem 1.25rem 0.25rem;
            font-size: 0.9rem;
            font-weight: 600;
            box-shadow: 0 6px 20px rgba(99, 102, 241, 0.35);
            position: relative;
        }

        .query-bubble::after {
            content: '';
            position: absolute;
            bottom: -6px;
            left: 0;
            width: 12px;
            height: 12px;
            background: linear-gradient(135deg, #8B5CF6, transparent);
            clip-path: polygon(0 0, 100% 0, 0 100%);
        }

        .ai-thinking {
            display: flex;
            gap: 1rem;
            padding: 1rem;
            background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
            border: 1px solid rgba(99, 102, 241, 0.2);
            border-radius: 1rem;
            box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
        }

        .thinking-icon {
            font-size: 1.2rem;
            color: var(--text-secondary);
        }

        @keyframes thinkPulse {
            0%, 100% { transform: scale(1) rotate(0deg); }
            50% { transform: scale(1.1) rotate(5deg); }
        }

        .thinking-process {
            display: flex;
            flex-direction: column;
            gap: 0.4rem;
            flex: 1;
        }

        .think-step {
            display: flex;
            align-items: center;
            gap: 0.6rem;
            font-size: 0.75rem;
            padding: 0.25rem 0;
            opacity: 0;
            animation: thinkStepIn 0.4s ease forwards;
        }

        .think-step:nth-child(1) { animation-delay: 0.8s; }
        .think-step:nth-child(3) { animation-delay: 1s; }
        .think-step:nth-child(5) { animation-delay: 1.2s; }
        .think-step:nth-child(7) { animation-delay: 1.4s; }

        @keyframes thinkStepIn {
            to { opacity: 1; }
        }

        .think-label {
            color: var(--text-tertiary);
            min-width: 65px;
            font-weight: 500;
        }

        .think-value {
            color: var(--text-secondary);
            font-family: 'Monaco', 'Menlo', monospace;
            background: rgba(255, 255, 255, 0.03);
            padding: 0.15rem 0.4rem;
            border-radius: 0.25rem;
        }

        .think-value.highlight {
            color: #10B981;
            font-weight: 700;
            background: rgba(16, 185, 129, 0.15);
            box-shadow: 0 0 10px rgba(16, 185, 129, 0.2);
        }

        .think-arrow {
            font-size: 0.7rem;
            color: var(--primary-color);
            margin-left: 35px;
            opacity: 0;
            animation: arrowFadeIn 0.3s ease forwards;
        }

        .think-arrow:nth-of-type(1) { animation-delay: 0.9s; }
        .think-arrow:nth-of-type(2) { animation-delay: 1.1s; }
        .think-arrow:nth-of-type(3) { animation-delay: 1.3s; }

        @keyframes arrowFadeIn {
            to { opacity: 0.6; }
        }

        .query-result {
            display: flex;
            align-items: flex-start;
            gap: 1.25rem;
            padding: 2rem;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: 1rem;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }

        .result-icon-wrapper {
            flex-shrink: 0;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: rgba(99, 102, 241, 0.1);
            border-radius: 0.75rem;
            color: var(--primary-color);
            font-size: 1.5rem;
        }

        .result-content {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
            flex: 1;
        }

        .result-title {
            font-size: 0.875rem;
            color: var(--text-secondary);
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .result-value {
            font-size: 2rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .result-change {
            font-size: 0.875rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .result-change.up {
            color: #10B981;
        }

        .result-change i {
            font-size: 0.75rem;
        }

        /* Mobile responsiveness */
        @media (max-width: 768px) {
            .how-visual {
                grid-template-columns: 1fr;
                gap: 1rem;
            }

            .connection-line {
                display: none;
            }

            .understanding-flow {
                flex-direction: row;
                flex-wrap: wrap;
                justify-content: center;
            }

            .flow-arrow-down {
                flex-direction: row;
            }

            .flow-arrow-down svg {
                transform: rotate(-90deg);
                width: 30px;
                height: 24px;
            }
        }

        /* 效率统计 - 已移除 */
        .efficiency-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1rem;
            margin-top: 1.5rem;
        }

        .stat-card {
            background: rgba(255, 255, 255, 0.02);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 0.5rem;
            padding: 1.25rem;
            text-align: center;
            transition: all 0.3s ease;
        }

        .stat-card:hover {
            border-color: rgba(99, 102, 241, 0.4);
            transform: translateY(-4px);
            box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
        }

        .stat-icon {
            font-size: 2rem;
            margin-bottom: 0.75rem;
        }

        .stat-data {
            display: flex;
            align-items: baseline;
            justify-content: center;
            gap: 0.25rem;
            margin-bottom: 0.5rem;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
        }

        .stat-unit {
            font-size: 1rem;
            color: var(--text-secondary);
        }

        .stat-label {
            font-size: 0.8rem;
            color: var(--text-tertiary);
        }

        /* 步骤信息 */
        .step-info {
            text-align: center;
            width: 100%;
            display: flex;
            flex-direction: column;
            align-items: center;
        }

        .step-title {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 0.25rem;
            line-height: 1.3;
            min-height: 2.4rem;
            display: flex;
            align-items: center;
            justify-content: center;
            text-align: center;
        }

        .step-duration {
            font-size: 0.65rem;
            color: var(--text-tertiary);
            min-height: 1rem;
            display: flex;
            align-items: center;
        }

        /* 步骤进度条 */
        .step-progress-bar {
            width: 100%;
            height: 3px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 2px;
            overflow: hidden;
        }

        .progress-fill {
            height: 100%;
            width: 0;
            border-radius: 2px;
            animation: progressFillAnim 2s ease forwards;
        }

        .workflow-track.traditional .progress-fill {
            background: linear-gradient(90deg, #EF4444, #F97316);
        }

        .progress-fill[data-delay="0"] { animation-delay: 0.5s; }
        .progress-fill[data-delay="1"] { animation-delay: 1.1s; }
        .progress-fill[data-delay="2"] { animation-delay: 1.7s; }
        .progress-fill[data-delay="3"] { animation-delay: 2.3s; }

        @keyframes progressFillAnim {
            to { width: 100%; }
        }

        .traditional-way, .softprobe-way {
            background: rgba(255, 255, 255, 0.02);
            border-radius: 1rem;
            padding: 2rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            flex-direction: column;
        }

        .way-header {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            margin-bottom: 2rem;
        }

        .way-header i {
            font-size: 1.5rem;
        }

        .traditional-way .way-header i {
            color: #EF4444;
        }

        .softprobe-way .way-header i {
            color: #10B981;
        }

        .way-header h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-primary);
            margin: 0;
        }

        .flow-steps {
            display: flex;
            align-items: center;
            justify-content: space-around;
            gap: 0.5rem;
            margin-bottom: 2rem;
            flex: 1;
        }

        .flow-step {
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 0.5rem;
            opacity: 0;
            transform: translateY(10px);
            animation: fadeInUp 0.5s ease forwards;
        }

        .flow-step.single {
            flex: 1;
        }

        .flow-step[data-delay="0"] { animation-delay: 0.2s; }
        .flow-step[data-delay="1"] { animation-delay: 0.6s; }
        .flow-step[data-delay="2"] { animation-delay: 1s; }
        .flow-step[data-delay="3"] { animation-delay: 1.4s; }

        @keyframes fadeInUp {
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .step-icon {
            font-size: 2.5rem;
            background: rgba(255, 255, 255, 0.05);
            width: 4rem;
            height: 4rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            border: 2px solid rgba(255, 255, 255, 0.1);
        }

        .step-label {
            font-size: 0.85rem;
            color: var(--text-secondary);
            text-align: center;
            font-weight: 600;
        }

        .flow-arrow {
            font-size: 1.5rem;
            color: var(--text-tertiary);
            opacity: 0;
            animation: fadeIn 0.5s ease 1.8s forwards;
        }

        @keyframes fadeIn {
            to { opacity: 1; }
        }

        .vs-divider {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .vs-divider span {
            font-size: 2rem;
            font-weight: 700;
            color: var(--primary-color);
            background: rgba(99, 102, 241, 0.1);
            border: 2px solid var(--primary-color);
            width: 4rem;
            height: 4rem;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            animation: pulse 2s ease infinite;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.1); }
        }

        .time-bar {
            position: relative;
            height: 40px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 20px;
            overflow: hidden;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .time-progress {
            position: absolute;
            left: 0;
            top: 0;
            height: 100%;
            border-radius: 20px;
            transition: width 2s ease;
        }

        .time-progress.traditional {
            background: linear-gradient(90deg, #EF4444, #DC2626);
            width: 0%;
            animation: fillTraditional 2s ease 2s forwards;
        }

        @keyframes fillTraditional {
            to { width: 100%; }
        }

        .time-progress.softprobe {
            background: linear-gradient(90deg, #10B981, #059669);
            width: 0%;
            animation: fillSoftprobe 0.5s ease 2.2s forwards;
        }

        @keyframes fillSoftprobe {
            to { width: 20%; }
        }

        .time-label {
            position: relative;
            z-index: 1;
            font-weight: 700;
            font-size: 1.1rem;
            color: var(--text-primary);
            text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
        }

        .impact-stats {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 1.5rem;
            margin-top: 3rem;
        }

        .impact-item {
            text-align: center;
            padding: 1.5rem;
            background: rgba(255, 255, 255, 0.02);
            border-radius: 0.75rem;
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all 0.3s ease;
        }

        .impact-item:hover {
            border-color: rgba(99, 102, 241, 0.4);
            transform: translateY(-4px);
        }

        .impact-icon {
            font-size: 2.5rem;
            margin-bottom: 0.5rem;
            animation: bounce 2s ease infinite;
        }

        @keyframes bounce {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-10px); }
        }

        .impact-item:nth-child(1) .impact-icon { animation-delay: 0s; }
        .impact-item:nth-child(2) .impact-icon { animation-delay: 0.2s; }
        .impact-item:nth-child(3) .impact-icon { animation-delay: 0.4s; }
        .impact-item:nth-child(4) .impact-icon { animation-delay: 0.6s; }

        .impact-value {
            font-size: 2.5rem;
            font-weight: 700;
            background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: inline-block;
        }

        .impact-suffix {
            font-size: 1.2rem;
            color: var(--text-secondary);
            display: inline-block;
            margin-left: 0.25rem;
        }

        .impact-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            margin-top: 0.5rem;
        }

        @media (max-width: 768px) {
            .workflow-comparison {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }

            .vs-divider {
                padding: 0.75rem 0;
            }

            .workflow-timeline {
                flex-wrap: wrap;
                gap: 0.5rem;
            }

            .workflow-step {
                max-width: none;
                flex: 0 0 calc(50% - 20px);
            }

            .workflow-arrow {
                flex: 0 0 20px;
            }

            .step-scene {
                width: 80px;
                height: 80px;
                height: 3rem;
                font-size: 2rem;
            }
        }