/* ============================================
   VINYO AGENT Website Styles
   深色科技主题 + 霓虹效果
   ============================================ */

/* CSS 变量定义 */
:root {
    /* 主色调 - 深色主题 */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: rgba(26, 26, 37, 0.8);
    --bg-glass: rgba(26, 26, 37, 0.6);
    
    /* 强调色 - 霓虹蓝紫 */
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #06b6d4;
    --accent-glow: rgba(99, 102, 241, 0.5);
    --accent-glow-strong: rgba(99, 102, 241, 0.8);
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-tertiary: rgba(255, 255, 255, 0.5);
    --text-muted: rgba(255, 255, 255, 0.3);
    
    /* 边框和分割线 */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-glow: rgba(99, 102, 241, 0.3);
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    --gradient-glow: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(139, 92, 246, 0.2));
    --gradient-text: linear-gradient(135deg, var(--accent-primary), var(--accent-tertiary));
    
    /* 字体 */
    --font-display: 'Syne', sans-serif;
    --font-mono: 'Space Mono', monospace;
    --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* 间距 */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    --space-4xl: 6rem;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --shadow-glow-sm: 0 0 20px var(--accent-glow);
}

/* 重置样式 */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

/* ============================================
   动态背景
   ============================================ */

.grid-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.4;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.grid-background::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(99, 102, 241, 0.1) 0%, transparent 50%);
}

.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 15s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(100vh) rotate(0deg);
        opacity: 0;
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        transform: translateY(-100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ============================================
   导航栏
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-md) var(--space-xl);
    transition: var(--transition-base);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 1.1rem;
    box-shadow: var(--shadow-glow-sm);
}

.logo-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--space-xl);
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

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

.btn-ghost:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

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

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

.btn-outline-light {
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: white;
    background: transparent;
}

.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
}

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

.btn-light:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255, 255, 255, 0.3);
}

.btn-large {
    padding: var(--space-md) var(--space-xl);
    font-size: 1rem;
}

.btn-small {
    padding: var(--space-xs) var(--space-md);
    font-size: 0.8rem;
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 18px;
    height: 18px;
}

.btn-icon-wrapper {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: var(--space-sm);
    z-index: 1001;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-base);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(10, 10, 15, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2xl);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xl);
}

.mobile-nav-links a {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
    transition: var(--transition-fast);
}

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

.mobile-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    width: 200px;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px var(--space-xl) var(--space-4xl);
    overflow: hidden;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4xl);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    color: var(--accent-primary);
    margin-bottom: var(--space-lg);
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.7);
    }
    50% {
        opacity: 0.8;
        box-shadow: 0 0 0 8px rgba(99, 102, 241, 0);
    }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--space-lg);
}

.title-line {
    display: block;
}

.title-line-accent {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin-bottom: var(--space-xl);
}

.hero-actions {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-3xl);
}

.hero-stats {
    display: flex;
    gap: var(--space-3xl);
}

.stat-item {
    display: flex;
    flex-direction: column;
}

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

.stat-suffix {
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 500px;
}

.agent-orb {
    position: relative;
    width: 300px;
    height: 300px;
}

.orb-core {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100px;
    height: 100px;
    background: var(--gradient-primary);
    border-radius: 50%;
    box-shadow: 
        0 0 60px var(--accent-glow-strong),
        inset 0 0 30px rgba(255, 255, 255, 0.3);
    animation: orb-pulse 3s infinite ease-in-out;
}

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

.orb-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 1px solid var(--border-glow);
    border-radius: 50%;
}

.orb-ring-1 {
    width: 180px;
    height: 180px;
    animation: ring-rotate 10s linear infinite;
}

.orb-ring-2 {
    width: 240px;
    height: 240px;
    animation: ring-rotate 15s linear infinite reverse;
}

.orb-ring-3 {
    width: 300px;
    height: 300px;
    animation: ring-rotate 20s linear infinite;
}

@keyframes ring-rotate {
    from {
        transform: translate(-50%, -50%) rotate(0deg);
    }
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.orb-particles {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
}

.floating-cards {
    position: absolute;
    width: 100%;
    height: 100%;
}

.float-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    animation: float-card 6s infinite ease-in-out;
}

.float-card-1 {
    top: 10%;
    right: 0;
    animation-delay: 0s;
}

.float-card-2 {
    bottom: 30%;
    left: 0;
    animation-delay: 2s;
}

.float-card-3 {
    bottom: 10%;
    right: 10%;
    animation-delay: 4s;
}

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

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

.card-text {
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   品牌展示
   ============================================ */

.brands {
    padding: var(--space-3xl) var(--space-xl);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.brands-container {
    max-width: 1400px;
    margin: 0 auto;
    text-align: center;
}

.brands-title {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: var(--space-xl);
}

.brands-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--space-3xl);
    flex-wrap: wrap;
}

.brand-item {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: var(--transition-base);
}

.brand-item:hover {
    color: var(--text-secondary);
}

/* ============================================
   Section 通用样式
   ============================================ */

.section-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-xl);
}

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--space-3xl);
}

.section-tag {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-md);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.section-description {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* ============================================
   功能特性
   ============================================ */

.features {
    padding: var(--space-4xl) 0;
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
    opacity: 0;
    transition: var(--transition-base);
}

.feature-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow-sm);
}

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

.feature-card-large {
    grid-column: span 2;
    grid-row: span 2;
}

.feature-icon-wrapper {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-glow);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-lg);
}

.feature-icon {
    width: 28px;
    height: 28px;
    color: var(--accent-primary);
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.feature-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.feature-visual {
    margin-top: var(--space-xl);
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
}

.task-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
}

.flow-node {
    padding: var(--space-sm) var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--text-tertiary);
    transition: var(--transition-base);
}

.flow-node.active {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.flow-arrow {
    flex: 1;
    height: 2px;
    background: var(--border-color);
    position: relative;
}

.flow-arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    border: 4px solid transparent;
    border-left: 6px solid var(--border-color);
}

/* ============================================
   智能代理展示
   ============================================ */

.agents {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, transparent, rgba(99, 102, 241, 0.03), transparent);
}

.agents-showcase {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--space-3xl);
    align-items: start;
}

.agent-tabs {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.agent-tab {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: transparent;
    border: 1px solid transparent;
    border-radius: var(--radius-lg);
    text-align: left;
    transition: var(--transition-base);
}

.agent-tab:hover {
    background: rgba(255, 255, 255, 0.03);
}

.agent-tab.active {
    background: var(--bg-card);
    border-color: var(--border-glow);
}

.tab-icon {
    font-size: 1.5rem;
}

.tab-text {
    font-weight: 500;
    color: var(--text-secondary);
}

.agent-tab.active .tab-text {
    color: var(--text-primary);
}

.agent-preview {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-2xl);
    min-height: 500px;
}

.agent-content {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3xl);
    animation: fadeIn 0.5s ease;
}

.agent-content.active {
    display: grid;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.agent-name {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-md);
}

.agent-desc {
    color: var(--text-secondary);
    margin-bottom: var(--space-xl);
    line-height: 1.7;
}

.agent-capabilities {
    margin-bottom: var(--space-xl);
}

.agent-capabilities li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.capability-check {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 50%;
    font-size: 0.75rem;
    color: var(--accent-primary);
}

/* Agent Demo 样式 */
.agent-demo {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 聊天模拟 */
.chat-simulation {
    width: 100%;
    max-width: 350px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.chat-header {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
}

.chat-avatar {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: 50%;
    font-size: 1.1rem;
}

.chat-info {
    flex: 1;
}

.chat-name {
    font-weight: 600;
    font-size: 0.9rem;
}

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

.chat-messages {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.message {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.message-bot {
    align-items: flex-start;
}

.message-user {
    align-items: flex-end;
}

.message-bubble {
    max-width: 85%;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-lg);
    font-size: 0.85rem;
    line-height: 1.5;
}

.message-bot .message-bubble {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border-bottom-left-radius: var(--radius-sm);
}

.message-user .message-bubble {
    background: var(--gradient-primary);
    color: white;
    border-bottom-right-radius: var(--radius-sm);
}

.message-time {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* 数据可视化 */
.data-visualization {
    width: 100%;
    max-width: 350px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.viz-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
}

.viz-title {
    font-weight: 600;
}

.viz-badge {
    padding: var(--space-xs) var(--space-sm);
    background: rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    color: var(--accent-tertiary);
}

.viz-chart {
    margin-bottom: var(--space-lg);
}

.chart-bars {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 120px;
    gap: var(--space-sm);
    margin-bottom: var(--space-sm);
}

.bar {
    flex: 1;
    height: var(--height);
    background: var(--bg-tertiary);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    transition: var(--transition-base);
    position: relative;
}

.bar.active {
    background: var(--gradient-primary);
}

.bar:hover {
    opacity: 0.8;
}

.chart-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-muted);
}

.viz-insights {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.insight-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 代码编辑器 */
.code-editor {
    width: 100%;
    max-width: 400px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.editor-header {
    background: rgba(255, 255, 255, 0.02);
    border-bottom: 1px solid var(--border-color);
}

.editor-tabs {
    display: flex;
}

.editor-tab {
    padding: var(--space-sm) var(--space-md);
    font-size: 0.8rem;
    color: var(--text-tertiary);
    border-bottom: 2px solid transparent;
}

.editor-tab.active {
    color: var(--text-primary);
    border-bottom-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.editor-body {
    padding: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.code-line {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    position: relative;
}

.code-line.highlight {
    background: rgba(99, 102, 241, 0.1);
    margin: 0 calc(-1 * var(--space-md));
    padding: 0 var(--space-md);
}

.line-number {
    color: var(--text-muted);
    min-width: 20px;
    text-align: right;
}

.code-content {
    color: var(--text-secondary);
}

.code-keyword {
    color: var(--accent-secondary);
}

.code-function {
    color: var(--accent-tertiary);
}

.code-string {
    color: #a5d6a7;
}

.code-class {
    color: #ffcc80;
}

.code-suggestion {
    position: absolute;
    right: var(--space-md);
    padding: var(--space-xs) var(--space-sm);
    background: var(--accent-primary);
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    color: white;
    white-space: nowrap;
}

/* 设计展示 */
.design-showcase {
    width: 100%;
    max-width: 350px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-lg);
}

.design-prompt {
    margin-bottom: var(--space-lg);
}

.prompt-label {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
    display: block;
}

.prompt-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

.design-results {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

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

.design-placeholder {
    aspect-ratio: 1;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-xs);
}

.design-1 {
    background: linear-gradient(135deg, #1e3a5f, #2d5a87);
}

.design-2 {
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
}

.design-3 {
    background: linear-gradient(135deg, #0f172a, #1e293b);
}

.design-label {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.design-actions {
    display: flex;
    gap: var(--space-sm);
}

/* ============================================
   工作原理
   ============================================ */

.how-it-works {
    padding: var(--space-4xl) 0;
}

.workflow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-lg);
    flex-wrap: wrap;
}

.workflow-step {
    flex: 1;
    min-width: 220px;
    max-width: 280px;
    text-align: center;
}

.step-number {
    font-family: var(--font-display);
    font-size: 4rem;
    font-weight: 800;
    color: transparent;
    -webkit-text-stroke: 1px var(--border-glow);
    line-height: 1;
    margin-bottom: var(--space-md);
}

.step-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
}

.step-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--space-md);
    color: var(--accent-primary);
}

.step-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.step-description {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.workflow-connector {
    width: 40px;
    height: 2px;
    background: linear-gradient(90deg, var(--border-color), var(--accent-primary), var(--border-color));
    flex-shrink: 0;
}

/* ============================================
   定价方案
   ============================================ */

.pricing {
    padding: var(--space-4xl) 0;
    background: linear-gradient(180deg, transparent, rgba(99, 102, 241, 0.02), transparent);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    transition: var(--transition-base);
}

.pricing-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
}

.pricing-card-popular {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow-sm);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-xs) var(--space-md);
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
}

.pricing-header {
    text-align: center;
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--border-color);
}

.pricing-name {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-xs);
}

.pricing-desc {
    font-size: 0.85rem;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
}

.pricing-price {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 2px;
}

.price-symbol {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 4px;
}

.price-value {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    line-height: 1;
}

.price-period {
    font-size: 0.9rem;
    color: var(--text-tertiary);
    align-self: flex-end;
    margin-bottom: 6px;
}

.pricing-features {
    margin-bottom: var(--space-xl);
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    font-size: 0.9rem;
}

.pricing-features li svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.feature-included {
    color: var(--text-secondary);
}

.feature-included svg {
    color: var(--accent-primary);
}

.feature-excluded {
    color: var(--text-muted);
}

.feature-excluded svg {
    color: var(--text-muted);
}

/* ============================================
   CTA Section
   ============================================ */

.cta {
    padding: var(--space-4xl) var(--space-xl);
}

.cta-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--gradient-primary);
    border-radius: var(--radius-2xl);
    padding: var(--space-4xl);
    position: relative;
    overflow: hidden;
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--space-3xl);
    align-items: center;
}

.cta-container::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: white;
    margin-bottom: var(--space-md);
}

.cta-description {
    font-size: 1.1rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--space-xl);
}

.cta-actions {
    display: flex;
    gap: var(--space-md);
}

.cta-visual {
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-orb {
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    box-shadow: 
        0 0 60px rgba(255, 255, 255, 0.2),
        inset 0 0 30px rgba(255, 255, 255, 0.1);
    animation: cta-orb-pulse 3s infinite ease-in-out;
}

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

/* ============================================
   页脚
   ============================================ */

.footer {
    padding: var(--space-4xl) var(--space-xl) var(--space-xl);
    border-top: 1px solid var(--border-color);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: var(--space-3xl);
    margin-bottom: var(--space-3xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.25rem;
    margin-bottom: var(--space-md);
}

.footer-tagline {
    color: var(--text-tertiary);
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
}

.footer-social {
    display: flex;
    gap: var(--space-md);
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition-base);
}

.social-link svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

.social-link:hover {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.social-link:hover svg {
    color: var(--accent-primary);
}

.footer-title {
    font-family: var(--font-display);
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.footer-links li {
    margin-bottom: var(--space-sm);
}

.footer-links a {
    color: var(--text-tertiary);
    font-size: 0.9rem;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    padding-top: var(--space-xl);
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        order: -1;
        height: 350px;
    }
    
    .agent-orb {
        width: 200px;
        height: 200px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .feature-card-large {
        grid-column: span 2;
        grid-row: span 1;
    }
    
    .agents-showcase {
        grid-template-columns: 1fr;
    }
    
    .agent-tabs {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .agent-tab {
        flex: 1;
        min-width: 140px;
        justify-content: center;
    }
    
    .agent-content {
        grid-template-columns: 1fr;
    }
    
    .agent-demo {
        order: -1;
    }
    
    .workflow-steps {
        flex-direction: column;
    }
    
    .workflow-connector {
        width: 2px;
        height: 40px;
        background: linear-gradient(180deg, var(--border-color), var(--accent-primary), var(--border-color));
    }
    
    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .cta-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta-actions {
        justify-content: center;
    }
    
    .cta-visual {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-links,
    .nav-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero {
        padding-top: 100px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-lg);
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card-large {
        grid-column: span 1;
    }
    
    .brands-grid {
        gap: var(--space-xl);
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-social {
        justify-content: center;
    }
    
    .footer-links {
        display: none;
    }
}

/* ============================================
   滚动动画
   ============================================ */

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}