/* ==========================================
   Global Styles & Variables
   ========================================== */
:root {
    /* Colors */
    --color-bg: #0a192f;
    --color-bg-light: #112240;
    --color-bg-lighter: #1d3557;
    --color-primary: #64ffda;
    --color-primary-dark: #52d4b0;
    --color-secondary: #8892b0;
    --color-text: #ccd6f6;
    --color-text-dark: #8892b0;
    --color-white: #e6f1ff;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'Fira Code', 'Courier New', monospace;
    
    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ==========================================
   Navigation
   ========================================== */
.nav {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(10, 25, 47, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 滚动后导航栏样式 - 变薄、变深、阴影加强 */
.nav.scrolled {
    background-color: rgba(10, 25, 47, 0.98);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    transition: padding 0.3s ease;
}

.nav.scrolled .nav-content {
    padding: 1rem 0;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    font-family: var(--font-mono);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.logo:hover {
    transform: translateY(-2px) scale(1.05);
    text-shadow: 0 0 20px rgba(100, 255, 218, 0.3);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
    position: relative;
}

.nav-link {
    color: var(--color-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover {
    color: var(--color-primary);
    transform: translateY(-2px);
}

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

/* 当前激活的导航项 */
.nav-link.active {
    color: var(--color-primary);
}

.nav-link.active::after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    position: relative;
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 25px;
    height: 2px;
    background-color: var(--color-primary);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 2px;
}

/* 汉堡菜单激活时的动画（变成X） */
.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(20px);
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ==========================================
   Hero Section
   ========================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: var(--spacing-xl) 0;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(100, 255, 218, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(100, 255, 218, 0.05) 0%, transparent 50%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    z-index: 1;
}

.hero-greeting {
    color: var(--color-primary);
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-mono);
    animation: fadeInUp 0.8s ease;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    animation: fadeInUp 0.8s ease 0.2s backwards;
}

.hero-subtitle {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    color: var(--color-secondary);
    margin-bottom: var(--spacing-md);
    animation: fadeInUp 0.8s ease 0.4s backwards;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--color-text-dark);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.6s backwards;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    animation: fadeInUp 0.8s ease 0.8s backwards;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid var(--color-primary);
}

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

.btn-primary:hover {
    background-color: transparent;
    color: var(--color-primary);
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.3);
}

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

.btn-secondary:hover {
    background-color: var(--color-primary);
    color: var(--color-bg);
    transform: translateY(-3px);
}

.hero-social {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    animation: fadeInUp 0.8s ease 1s backwards;
}

.social-link {
    color: var(--color-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-link:hover {
    color: var(--color-primary);
    transform: translateY(-3px);
}

/* ==========================================
   Section Styles
   ========================================== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-dark {
    background-color: var(--color-bg-light);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--color-white);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 3px;
    background-color: var(--color-primary);
    margin: var(--spacing-sm) auto 0;
}

/* ==========================================
   About Section
   ========================================== */
.about-content {
    max-width: 900px;
    margin: 0 auto;
}

.about-intro {
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.highlight-item {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background-color: var(--color-bg-light);
    border-radius: 10px;
    transition: var(--transition);
    border: 1px solid transparent;
}

.highlight-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.1);
}

.highlight-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.highlight-content h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
    font-size: 1.2rem;
}

.highlight-content p {
    color: var(--color-text-dark);
    font-size: 0.95rem;
}

/* ==========================================
   Timeline
   ========================================== */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--color-bg-lighter);
}

.timeline-item {
    position: relative;
    padding-left: 70px;
    margin-bottom: var(--spacing-lg);
}

.timeline-marker {
    position: absolute;
    left: 21px;
    top: 0;
    width: 20px;
    height: 20px;
    background-color: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 0 4px var(--color-bg-light);
}

.timeline-content {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 10px;
    border: 1px solid var(--color-bg-lighter);
    transition: var(--transition);
}

.timeline-content:hover {
    border-color: var(--color-primary);
    transform: translateX(5px);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.timeline-header h3 {
    color: var(--color-white);
    font-size: 1.3rem;
}

.timeline-period {
    color: var(--color-primary);
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

.timeline-company {
    color: var(--color-secondary);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-sm);
}

.timeline-details {
    list-style: none;
    padding-left: var(--spacing-sm);
}

.timeline-details li {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
    position: relative;
    padding-left: var(--spacing-sm);
}

.timeline-details li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--color-primary);
}

/* ==========================================
   Projects Section
   ========================================== */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background-color: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: 10px;
    border: 1px solid transparent;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--color-primary);
    box-shadow: 0 20px 40px rgba(100, 255, 218, 0.1);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-sm);
    gap: var(--spacing-sm);
}

.project-header h3 {
    color: var(--color-white);
    font-size: 1.5rem;
    flex: 1;
}

.project-role {
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    white-space: nowrap;
}

.project-description {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tech-tag {
    background-color: var(--color-bg);
    color: var(--color-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 5px;
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

.project-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: auto;
}

.highlight {
    color: var(--color-text-dark);
    font-size: 0.9rem;
    padding-left: var(--spacing-sm);
    position: relative;
}

.highlight::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ==========================================
   Skills Section
   ========================================== */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.skill-category {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 10px;
    border: 1px solid var(--color-bg-lighter);
    transition: var(--transition);
}

.skill-category:hover {
    border-color: var(--color-primary);
}

.skill-category h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.skill-items {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.skill-name {
    color: var(--color-text);
    font-size: 0.95rem;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background-color: var(--color-bg-lighter);
    border-radius: 10px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    border-radius: 10px;
    transition: width 1s ease;
}

/* ==========================================
   Contact Section
   ========================================== */
.contact-content {
    max-width: 900px;
    margin: 0 auto;
}

.contact-intro {
    text-align: center;
    font-size: 1.2rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-lg);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.contact-item {
    background-color: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.contact-item:hover {
    transform: translateY(-5px);
    border-color: var(--color-primary);
}

.contact-icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

.contact-item h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
}

.contact-item a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.contact-item a:hover {
    color: var(--color-primary);
}

.contact-item p {
    color: var(--color-secondary);
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background-color: var(--color-bg-light);
    padding: var(--spacing-md) 0;
    text-align: center;
    border-top: 1px solid var(--color-bg-lighter);
}

.footer p {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-xs);
}

.footer-tech {
    font-size: 0.9rem;
}

/* ==========================================
   Animations
   ========================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==========================================
   Responsive Design
   ========================================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: var(--color-bg-light);
        flex-direction: column;
        padding: var(--spacing-md);
        transform: translateX(-100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
        border-bottom: 2px solid var(--color-primary);
    }
    
    .nav-menu.active {
        transform: translateX(0);
    }
    
    /* 移动端菜单项依次进入动画 */
    .nav-menu .nav-link {
        opacity: 0;
        transform: translateX(-20px);
        transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .nav-menu.active .nav-link {
        opacity: 1;
        transform: translateX(0);
    }
    
    .nav-menu.active .nav-link:nth-child(1) { transition-delay: 0.1s; }
    .nav-menu.active .nav-link:nth-child(2) { transition-delay: 0.15s; }
    .nav-menu.active .nav-link:nth-child(3) { transition-delay: 0.2s; }
    .nav-menu.active .nav-link:nth-child(4) { transition-delay: 0.25s; }
    .nav-menu.active .nav-link:nth-child(5) { transition-delay: 0.3s; }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        min-height: auto;
        padding: calc(var(--spacing-xl) + 60px) 0 var(--spacing-lg);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .timeline-item {
        padding-left: 50px;
    }
    
    .timeline-marker {
        left: 1px;
    }
    
    .timeline-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .about-highlights {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

/* ==========================================
   Print Styles
   ========================================== */
@media print {
    body {
        background-color: white;
        color: black;
    }
    
    .nav,
    .hero-cta,
    .hero-social,
    .footer {
        display: none;
    }
}

/* ==========================================
   AI Empowerment Section - 可视化版本
   ========================================== */
.ai-intro {
    text-align: center;
    font-size: 1.1rem;
    color: var(--color-text);
    max-width: 800px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

.ai-intro strong {
    color: var(--color-primary);
    font-size: 1.3rem;
}

.ai-section-title {
    font-size: 1.5rem;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* 工作流程图 */
.ai-workflow {
    margin-bottom: var(--spacing-xl);
}

.workflow-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(100, 255, 218, 0.05) 0%, rgba(100, 255, 218, 0.02) 100%);
    border-radius: 15px;
}

.workflow-step {
    background-color: var(--color-bg);
    border: 2px solid var(--color-bg-lighter);
    border-radius: 10px;
    padding: var(--spacing-md);
    min-width: 140px;
    text-align: center;
    transition: var(--transition);
}

.workflow-step:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.2);
}

.step-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.step-title {
    color: var(--color-white);
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.step-tool {
    color: var(--color-primary);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    margin-bottom: var(--spacing-xs);
}

.step-desc {
    color: var(--color-text-dark);
    font-size: 0.8rem;
    line-height: 1.5;
}

.workflow-arrow {
    color: var(--color-primary);
    font-size: 2rem;
    font-weight: bold;
}

/* 效率对比可视化 */
.ai-comparison {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg);
    border-radius: 15px;
}

.comparison-grid {
    margin-bottom: var(--spacing-lg);
}

.comparison-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    position: relative;
}

.comparison-label {
    min-width: 120px;
    color: var(--color-text);
    font-weight: 500;
}

.comparison-bar-container {
    flex: 1;
    height: 50px;
    background-color: var(--color-bg-lighter);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

.comparison-bar {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: width 1s ease;
    border-radius: 10px;
}

.comparison-bar.traditional {
    background: linear-gradient(90deg, #8892b0 0%, #6b7794 100%);
}

.comparison-bar.ai-powered {
    background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: 0 0 20px rgba(100, 255, 218, 0.4);
}

.bar-label {
    color: var(--color-bg);
    font-weight: 700;
    font-size: 1.1rem;
}

.comparison-badge {
    position: absolute;
    right: -80px;
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.comparison-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.metric-item {
    text-align: center;
    padding: var(--spacing-md);
    background-color: var(--color-bg-lighter);
    border-radius: 10px;
    transition: var(--transition);
}

.metric-item:hover {
    transform: scale(1.05);
    background-color: rgba(100, 255, 218, 0.1);
}

.metric-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-xs);
}

.metric-label {
    color: var(--color-text-dark);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-xs);
}

.metric-value {
    color: var(--color-primary);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
}

/* 工具生态系统 */
.ai-ecosystem {
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
}

.ecosystem-diagram {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ecosystem-center {
    position: absolute;
    z-index: 2;
}

.center-circle {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 40px rgba(100, 255, 218, 0.3);
}

.center-icon {
    font-size: 3rem;
}

.center-label {
    color: var(--color-bg);
    font-weight: 600;
    margin-top: var(--spacing-xs);
}

.ecosystem-tools {
    position: absolute;
    width: 100%;
    height: 100%;
}

.tool-node {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: 
        rotate(var(--angle)) 
        translate(180px) 
        rotate(calc(-1 * var(--angle)));
    width: 100px;
}

.tool-icon {
    font-size: 2rem;
    text-align: center;
    margin-bottom: var(--spacing-xs);
}

.tool-name {
    color: var(--color-white);
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-xs);
    font-size: 0.9rem;
}

.tool-tag {
    background-color: var(--color-primary);
    color: var(--color-bg);
    padding: 0.2rem 0.6rem;
    border-radius: 10px;
    font-size: 0.75rem;
    text-align: center;
    display: inline-block;
    width: 100%;
}

/* 实践成果 */
.ai-results {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(100, 255, 218, 0.05) 0%, transparent 100%);
    border-radius: 15px;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.result-card {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: 10px;
    border: 1px solid var(--color-bg-lighter);
    transition: var(--transition);
}

.result-card:hover {
    border-color: var(--color-primary);
    transform: translateY(-5px);
}

.result-icon {
    font-size: 3rem;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.result-title {
    color: var(--color-white);
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: var(--spacing-md);
}

.result-stats .stat-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--color-bg-lighter);
}

.stat-label {
    color: var(--color-text-dark);
}

.stat-value {
    color: var(--color-primary);
    font-weight: 700;
    font-family: var(--font-mono);
}

.result-list {
    list-style: none;
    padding: 0;
}

.result-list li {
    color: var(--color-text-dark);
    padding: var(--spacing-xs) 0;
    padding-left: var(--spacing-sm);
    position: relative;
}

.result-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

.result-project {
    text-align: center;
}

.project-name {
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.project-desc {
    color: var(--color-text-dark);
    margin-bottom: var(--spacing-sm);
}

.project-tech {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    margin-bottom: var(--spacing-sm);
}

.tech-badge {
    background-color: var(--color-bg-lighter);
    color: var(--color-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.project-outcome {
    color: var(--color-text);
    font-size: 0.9rem;
}

/* 响应式 */
@media (max-width: 768px) {
    .workflow-diagram {
        flex-direction: column;
        padding: var(--spacing-md);
    }
    
    .workflow-arrow {
        transform: rotate(90deg);
        margin: var(--spacing-sm) 0;
    }
    
    .comparison-item {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .comparison-label {
        margin-bottom: var(--spacing-xs);
    }
    
    .comparison-badge {
        position: static;
        margin-top: var(--spacing-xs);
        display: inline-block;
    }
    
    .comparison-metrics {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .ecosystem-diagram {
        height: 300px;
    }
    
    .tool-node {
        transform: 
            rotate(var(--angle)) 
            translate(120px) 
            rotate(calc(-1 * var(--angle)));
        width: 80px;
    }
    
    .tool-name {
        font-size: 0.75rem;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
}