/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #7c3aed;
    --secondary-dark: #6d28d9;
    --accent-color: #06b6d4;
    --light-color: #f8fafc;
    --dark-color: #0f172a;
    --gray-light: #f1f5f9;
    --gray: #64748b;
    --gray-dark: #334155;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --border-radius: 12px;
    --box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    --box-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'Roboto Mono', monospace;
}

html {
    scroll-behavior: smooth;
}

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

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 16px;
    gap: 8px;
}

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

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

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo i {
    font-size: 28px;
}

.tagline {
    font-size: 14px;
    color: var(--gray);
    font-weight: 500;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition);
    padding: 5px 0;
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark-color);
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    padding: 160px 0 100px;
    background: linear-gradient(135deg, #e0e7ff 0%, #c7d2fe 100%);
    position: relative;
    overflow: hidden;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    color: var(--dark-color);
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-weight: 600;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--gray-dark);
    margin-bottom: 35px;
    line-height: 1.8;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.hero-visual {
    position: relative;
    height: 400px;
}

.visual-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.network-node {
    position: absolute;
    width: 80px;
    height: 80px;
    background: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}

.network-node i {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.network-node span {
    font-size: 12px;
    font-weight: 600;
    color: var(--dark-color);
}

.node1 {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.node2 {
    top: 10%;
    right: 15%;
    animation-delay: 0.5s;
}

.node3 {
    bottom: 20%;
    left: 15%;
    animation-delay: 1s;
}

.node4 {
    bottom: 10%;
    right: 10%;
    animation-delay: 1.5s;
}

.center-node {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

.center-node i {
    font-size: 32px;
    color: white;
    margin-bottom: 5px;
}

.center-node span {
    font-size: 14px;
    font-weight: 600;
    color: white;
}

.network-lines {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.line {
    position: absolute;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    height: 2px;
    transform-origin: 0 0;
    animation: lineFlow 3s linear infinite;
}

.line1 {
    width: 30%;
    top: 35%;
    left: 20%;
    transform: rotate(45deg);
    animation-delay: 0s;
}

.line2 {
    width: 30%;
    top: 25%;
    right: 25%;
    transform: rotate(-45deg);
    animation-delay: 0.5s;
}

.line3 {
    width: 30%;
    bottom: 35%;
    left: 25%;
    transform: rotate(-45deg);
    animation-delay: 1s;
}

.line4 {
    width: 30%;
    bottom: 25%;
    right: 20%;
    transform: rotate(45deg);
    animation-delay: 1.5s;
}

/* 章节样式 */
.section {
    padding: 100px 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--gray);
    font-weight: 500;
}

/* 概述部分 */
.overview-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.overview-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.overview-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.card-icon i {
    font-size: 24px;
    color: white;
}

.overview-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.timeline {
    list-style: none;
    margin-top: 20px;
}

.timeline li {
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.timeline li span {
    font-weight: 600;
    color: var(--primary-color);
    background: var(--gray-light);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 14px;
}

.architecture {
    margin-top: 20px;
}

.arch-layer {
    background: var(--gray-light);
    padding: 12px 15px;
    margin-bottom: 8px;
    border-radius: 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.arch-layer:hover {
    background: var(--primary-color);
    color: white;
}

.arch-layer:hover .layer-desc {
    color: white;
}

.layer-name {
    font-weight: 600;
}

.layer-desc {
    font-size: 12px;
    color: var(--gray);
}

.features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-top: 20px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px;
    background: var(--gray-light);
    border-radius: 4px;
    transition: var(--transition);
}

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

.feature:hover i {
    color: white;
}

.feature i {
    color: var(--primary-color);
    font-size: 14px;
}

.feature span {
    font-size: 14px;
    font-weight: 500;
}

/* 规范部分 */
.specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.spec-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.spec-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.spec-card.highlight {
    border: 2px solid var(--primary-color);
    grid-column: span 2;
}

.spec-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.spec-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.spec-da {
    background: linear-gradient(135deg, #ff9a9e, #fad0c4);
    color: #d63031;
}

.spec-hda {
    background: linear-gradient(135deg, #a1c4fd, #c2e9fb);
    color: #0984e3;
}

.spec-ae {
    background: linear-gradient(135deg, #ffecd2, #fcb69f);
    color: #e17055;
}

.spec-ua {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
}

.spec-header h3 {
    font-size: 1.5rem;
    margin: 0;
}

.spec-badge {
    padding: 4px 12px;
    background: var(--gray-light);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    margin-left: auto;
}

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

.spec-features {
    list-style: none;
}

.spec-features li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.spec-features li i {
    color: var(--success-color);
    font-size: 14px;
}

/* 优势部分 */
.benefits-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.benefits-text h3 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.benefits-text > p {
    font-size: 1.1rem;
    color: var(--gray-dark);
    margin-bottom: 40px;
    line-height: 1.8;
}

.benefit-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

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

.benefit-icon i {
    color: white;
    font-size: 20px;
}

.benefit-details h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.benefits-chart {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.chart-container {
    height: 300px;
    display: flex;
    flex-direction: column;
}

.chart-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-around;
    height: 100%;
    gap: 20px;
}

.chart-bar {
    width: 50px;
    background: linear-gradient(to top, var(--primary-color), var(--secondary-color));
    border-radius: 4px 4px 0 0;
    position: relative;
    transition: var(--transition);
    animation: barGrow 1.5s ease-out;
}

.chart-bar:hover {
    transform: scale(1.05);
}

.bar-label {
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.bar-value {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 14px;
    font-weight: 700;
    color: var(--primary-color);
}

/* 应用部分 */
.applications-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.app-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.app-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.app-icon i {
    font-size: 30px;
    color: white;
}

.app-card h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.app-card p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 14px;
}

.app-tags {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 4px 12px;
    background: var(--gray-light);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-dark);
}

/* 未来展望 */
.future-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.future-text h3 {
    font-size: 2rem;
    margin-bottom: 25px;
    color: var(--dark-color);
}

.future-text > p {
    font-size: 1.1rem;
    color: var(--gray-dark);
    margin-bottom: 40px;
    line-height: 1.8;
}

.trends {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.trend {
    display: flex;
    gap: 15px;
    align-items: flex-start;
}

.trend i {
    font-size: 24px;
    color: var(--primary-color);
    margin-top: 5px;
}

.trend h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.trend p {
    color: var(--gray);
    font-size: 14px;
}

.future-visual {
    height: 300px;
    position: relative;
}

.ecosystem {
    position: relative;
    width: 100%;
    height: 100%;
}

.ecosystem-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow-lg);
    animation: pulse 2s ease-in-out infinite;
}

.ecosystem-center i {
    font-size: 32px;
    color: white;
    margin-bottom: 5px;
}

.ecosystem-center span {
    font-size: 14px;
    font-weight: 600;
    color: white;
}

.ecosystem-node {
    position: absolute;
    width: 70px;
    height: 70px;
    background: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    animation: float 4s ease-in-out infinite;
}

.ecosystem-node i {
    font-size: 20px;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.ecosystem-node span {
    font-size: 11px;
    font-weight: 600;
    color: var(--dark-color);
    text-align: center;
}

.ecosystem-node.node1 {
    top: 10%;
    left: 20%;
    animation-delay: 0s;
}

.ecosystem-node.node2 {
    top: 10%;
    right: 20%;
    animation-delay: 1s;
}

.ecosystem-node.node3 {
    bottom: 10%;
    left: 20%;
    animation-delay: 2s;
}

.ecosystem-node.node4 {
    bottom: 10%;
    right: 20%;
    animation-delay: 3s;
}

/* 资源部分 */
.resources-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.resource-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.resource-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.resource-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.resource-icon i {
    font-size: 24px;
    color: white;
}

.resource-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.resource-card p {
    color: var(--gray);
    margin-bottom: 20px;
    font-size: 14px;
    line-height: 1.6;
}

.resource-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    transition: var(--transition);
}

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

/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-description {
    color: var(--gray-light);
    font-size: 14px;
    line-height: 1.6;
    max-width: 300px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.link-group h4 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: white;
}

.link-group a {
    display: block;
    color: var(--gray-light);
    text-decoration: none;
    margin-bottom: 10px;
    font-size: 14px;
    transition: var(--transition);
}

.link-group a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: var(--gray);
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--gray);
    font-size: 18px;
    transition: var(--transition);
}

.social-links a:hover {
    color: white;
    transform: translateY(-2px);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-3px);
}

/* 动画 */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.05);
    }
}

@keyframes lineFlow {
    0% {
        background-position: 0% 0%;
    }
    100% {
        background-position: 100% 0%;
    }
}

@keyframes barGrow {
    from {
        height: 0;
    }
    to {
        height: var(--target-height);
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .overview-content {
        grid-template-columns: 1fr;
    }
    
    .specs-grid {
        grid-template-columns: 1fr;
    }
    
    .spec-card.highlight {
        grid-column: span 1;
    }
    
    .benefits-content {
        grid-template-columns: 1fr;
    }
    
    .applications-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .future-content {
        grid-template-columns: 1fr;
    }
    
    .resources-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .applications-grid {
        grid-template-columns: 1fr;
    }
    
    .resources-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}

/* 一人公司(OPC)特定样式 */
.hero-stats {
    display: flex;
    gap: 30px;
    margin: 30px 0;
    justify-content: center;
}

.stat {
    text-align: center;
    background: white;
    padding: 15px 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    min-width: 120px;
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 14px;
    color: var(--gray);
    margin-top: 8px;
}

.opc-person {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
}

.person-avatar {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    box-shadow: var(--box-shadow-lg);
}

.person-avatar i {
    font-size: 48px;
    color: white;
}

.person-name {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
    background: white;
    padding: 8px 16px;
    border-radius: 20px;
    box-shadow: var(--box-shadow);
}

.ai-assistants {
    position: relative;
    width: 100%;
    height: 100%;
}

.ai-assistant {
    position: absolute;
    width: 70px;
    height: 70px;
    background: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    animation: float 3s ease-in-out infinite;
}

.ai-assistant i {
    font-size: 24px;
    margin-bottom: 5px;
}

.ai-assistant.design {
    top: 15%;
    left: 20%;
    color: #8b5cf6;
}

.ai-assistant.code {
    top: 15%;
    right: 20%;
    color: #10b981;
}

.ai-assistant.market {
    bottom: 15%;
    left: 20%;
    color: #f59e0b;
}

.ai-assistant.support {
    bottom: 15%;
    right: 20%;
    color: #ef4444;
}

.feature-list {
    list-style: none;
    margin-top: 15px;
}

.feature-list li {
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

.feature-list li i {
    color: var(--success-color);
    font-size: 14px;
}

.growth-chart {
    display: flex;
    align-items: flex-end;
    gap: 15px;
    height: 200px;
    margin-top: 20px;
    padding: 20px;
    background: var(--gray-light);
    border-radius: var(--border-radius);
}

.growth-chart .chart-bar {
    flex: 1;
    background: linear-gradient(to top, var(--primary-color), var(--secondary-color));
    border-radius: 4px 4px 0 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    padding-bottom: 10px;
    color: white;
    font-weight: 600;
    transition: var(--transition);
}

.growth-chart .chart-bar.highlight {
    background: linear-gradient(to top, var(--accent-color), #10b981);
}

.persona-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-top: 20px;
}

.persona {
    background: var(--gray-light);
    border-radius: var(--border-radius);
    padding: 15px;
    text-align: center;
    transition: var(--transition);
}

.persona:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.persona i {
    font-size: 24px;
    margin-bottom: 8px;
    display: block;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon i {
    font-size: 24px;
    color: white;
}

.ai-tools, .step-tools, .guide-tasks {
    display: flex;
    gap: 8px;
    margin-top: 15px;
    flex-wrap: wrap;
}

.tool-tag, .step-tools span, .guide-tasks span {
    padding: 4px 12px;
    background: var(--gray-light);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--gray-dark);
}

.cost-comparison {
    margin-top: 20px;
}

.cost-item {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-light);
}

.cost-item:last-child {
    border-bottom: none;
}

.cost-high {
    color: var(--danger-color);
    font-weight: 600;
}

.cost-low {
    color: var(--success-color);
    font-weight: 600;
}

.iteration-timeline {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    position: relative;
}

.iteration-timeline::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gray-light);
    transform: translateY(-50%);
    z-index: 1;
}

.timeline-item {
    position: relative;
    z-index: 2;
    text-align: center;
    background: white;
    padding: 8px 12px;
    border-radius: 20px;
    box-shadow: var(--box-shadow);
}

.timeline-item .dot {
    width: 12px;
    height: 12px;
    background: var(--primary-color);
    border-radius: 50%;
    margin: 0 auto 5px;
}

.global-icons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    font-size: 24px;
    color: var(--primary-color);
}

.advantages-list {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.advantage-item {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.advantage-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.advantage-icon i {
    color: white;
    font-size: 20px;
}

.comparison-chart {
    margin-top: 20px;
}

.comparison-item {
    margin-bottom: 20px;
}

.item-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.bars {
    display: flex;
    gap: 10px;
    align-items: center;
}

.opc-bar {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    height: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    color: white;
    font-size: 12px;
    font-weight: 600;
    transition: var(--transition);
}

.traditional-bar {
    background: linear-gradient(to right, var(--gray), var(--gray-dark));
    height: 20px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 10px;
    color: white;
    font-size: 12px;
    font-weight: 600;
    transition: var(--transition);
}

.chart-legend {
    display: flex;
    gap: 20px;
    margin-top: 20px;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

.legend-color.opc {
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.legend-color.traditional {
    background: linear-gradient(to right, var(--gray), var(--gray-dark));
}

.workflow-steps {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.step {
    display: flex;
    gap: 20px;
    align-items: flex-start;
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.step:hover {
    transform: translateX(5px);
    box-shadow: var(--box-shadow-lg);
}

.step-number {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    font-weight: 700;
    flex-shrink: 0;
}

.tools-categories {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.category {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.category:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.category-header i {
    font-size: 28px;
    color: var(--primary-color);
}

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

.tool-list li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--gray-light);
}

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

.tool-list li i {
    color: var(--success-color);
    font-size: 14px;
}

.start-guide {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.guide-step {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.guide-step:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.guide-day {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-section {
    text-align: center;
    padding: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--border-radius);
    color: white;
}

.cta-section h3 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.btn-large {
    padding: 16px 32px;
    font-size: 18px;
    margin-top: 20px;
}

.community-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.community-stat {
    text-align: center;
}

.community-stat .stat-number {
    font-size: 2.5rem;
}

.community-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.community-card {
    background: white;
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.community-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--box-shadow-lg);
}

.community-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.community-icon i {
    font-size: 24px;
    color: white;
}

@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .stat {
        min-width: 200px;
    }
    
    .features-grid, .tools-categories, .community-features {
        grid-template-columns: 1fr;
    }
    
    .start-guide {
        grid-template-columns: 1fr;
    }
    
    .persona-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
    }
    
    .ai-assistant {
        width: 60px;
        height: 60px;
    }
}