/* ========================================
   晓得·慧记 - 智能会议与知识管理平台
   宣传网站样式表
   ======================================== */

/* CSS 变量定义 */
:root {
    /* 主色调 - 科技感蓝紫渐变 */
    --primary-100: #e0e7ff;
    --primary-200: #c7d2fe;
    --primary-300: #a5b4fc;
    --primary-400: #818cf8;
    --primary-500: #6366f1;
    --primary-600: #4f46e5;
    --primary-700: #4338ca;
    --primary-800: #3730a3;
    --primary-900: #312e81;
    
    /* 辅助色 - 青色 */
    --accent-cyan: #06b6d4;
    --accent-cyan-light: #67e8f9;
    --accent-cyan-dark: #0891b2;
    
    /* 辅助色 - 紫色 */
    --accent-purple: #8b5cf6;
    --accent-purple-light: #c4b5fd;
    
    /* 背景色 */
    --bg-dark: #0f172a;
    --bg-dark-light: #1e293b;
    --bg-dark-lighter: #334155;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-card-hover: rgba(30, 41, 59, 0.9);
    
    /* 文字色 */
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --text-dark: #0f172a;
    
    /* 边框和阴影 */
    --border-color: rgba(148, 163, 184, 0.1);
    --shadow-sm: 0 1px 2px 0 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 rgba(99, 102, 241, 0.3);
    
    /* 间距 */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;
    
    /* 过渡 */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

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

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

body {
    font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul {
    list-style: none;
}

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

/* 容器 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* ========================================
   按钮样式
   ======================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-400), var(--primary-500));
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--primary-400);
}

.btn-lg {
    padding: var(--space-4) var(--space-8);
    font-size: 1rem;
}

.btn-block {
    width: 100%;
}

/* ========================================
   导航栏
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--space-3) 0;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-500), var(--accent-purple));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    object-fit: contain;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: var(--space-2) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-cyan));
    transition: width var(--transition-normal);
}

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

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

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: var(--space-2);
}

.bar {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

/* ========================================
   Hero 区域
   ======================================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.4;
    animation: float 10s ease-in-out infinite;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: var(--primary-600);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: var(--accent-cyan);
    bottom: -100px;
    left: -100px;
    animation-delay: -3s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: var(--accent-purple);
    top: 50%;
    left: 30%;
    animation-delay: -6s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -30px) scale(1.05);
    }
    66% {
        transform: translate(-20px, 20px) scale(0.95);
    }
}

.grid-pattern {
    position: absolute;
    inset: 0;
    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: 50px 50px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--space-6);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    color: var(--primary-300);
    margin-bottom: var(--space-6);
}

.hero-badge i {
    color: var(--accent-cyan);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-400), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--space-8);
}

.hero-stats {
    display: flex;
    gap: var(--space-12);
    margin-bottom: var(--space-8);
}

.stat-item {
    display: flex;
    align-items: baseline;
    gap: var(--space-1);
    /* GPU加速 */
    transform: translateZ(0);
    will-change: transform;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--primary-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    /* 性能优化 */
    will-change: transform, contents;
    contain: layout style paint;
    /* 防抖动 */
    font-variant-numeric: tabular-nums;
    /* 流畅渲染 */
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-400);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-left: var(--space-2);
}

/* 数字动画流畅效果 - 轻微弹性 */
@keyframes countPop {
    0% {
        transform: scale(0.85);
        opacity: 0.6;
    }
    60% {
        transform: scale(1.08);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.stat-number.animating {
    animation: countPop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hero-actions {
    display: flex;
    gap: var(--space-4);
}

/* 仪表板预览 */
.hero-visual {
    position: relative;
    z-index: 1;
}

.dashboard-preview {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-glow);
    backdrop-filter: blur(10px);
    animation: slideInRight 1s ease-out;
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.dashboard-header {
    background: rgba(15, 23, 42, 0.8);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-4);
    border-bottom: 1px solid var(--border-color);
}

.window-controls {
    display: flex;
    gap: 6px;
}

.control {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.control.red { background: #ef4444; }
.control.yellow { background: #f59e0b; }
.control.green { background: #10b981; }

.dashboard-title {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.dashboard-body {
    padding: var(--space-6);
}

.transcript-area {
    background: rgba(15, 23, 42, 0.5);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-4);
}

.transcript-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.transcript-header i {
    color: var(--accent-cyan);
}

.live-badge {
    margin-left: auto;
    padding: 2px 8px;
    background: #ef4444;
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    animation: pulse 2s infinite;
}

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

.transcript-content {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.message {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.speaker {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary-300);
}

.text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.typing-cursor {
    color: var(--accent-cyan);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.ai-insights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-3);
}

.insight-card {
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-md);
    padding: var(--space-3);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.insight-card i {
    color: var(--accent-cyan);
}

/* 滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    color: var(--text-muted);
    font-size: 0.75rem;
}

.mouse {
    width: 24px;
    height: 36px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
    0% { top: 6px; opacity: 1; }
    100% { top: 18px; opacity: 0; }
}

/* ========================================
   通用区域样式
   ======================================== */
section {
    padding: var(--space-24) 0;
    position: relative;
}

.section-header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-16);
}

.section-tag {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--primary-300);
    margin-bottom: var(--space-4);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--space-4);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-muted);
}

/* ========================================
   产品功能区域
   ======================================== */
.features {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-light) 100%);
}

.features-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-6);
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.tab-btn:hover {
    border-color: var(--primary-400);
    color: var(--text-primary);
}

.tab-btn.active {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-color: transparent;
    color: white;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

/* 滚动触发动画 - 性能优化 */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

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

/* GPU加速提示 */
.gpu-accelerated {
    transform: translateZ(0);
    backface-visibility: hidden;
    perspective: 1000px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    transition: all var(--transition-normal);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-card.highlight {
    border-color: rgba(99, 102, 241, 0.3);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.05));
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    margin-bottom: var(--space-4);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.feature-card > p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-bottom: var(--space-4);
    line-height: 1.6;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.feature-list i {
    color: var(--accent-cyan);
    font-size: 0.75rem;
}

/* ========================================
   核心优势
   ======================================== */
.advantages {
    background: var(--bg-dark);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.advantage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    text-align: center;
    transition: all var(--transition-normal);
}

.advantage-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-4px);
}

.advantage-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.1));
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--primary-400);
    margin: 0 auto var(--space-6);
    transition: all var(--transition-normal);
}

.advantage-card:hover .advantage-icon {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    color: white;
    transform: scale(1.05);
}

.advantage-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.advantage-card p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* ========================================
   应用场景
   ======================================== */
.scenarios {
    background: linear-gradient(180deg, var(--bg-dark-light) 0%, var(--bg-dark) 100%);
}

.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-8);
}

.scenario-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    transition: all var(--transition-normal);
}

.scenario-card:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.scenario-image {
    width: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(6, 182, 212, 0.05));
}

.scenario-icon-bg {
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: white;
}

.scenario-icon-bg.orange {
    background: linear-gradient(135deg, #f59e0b, #d97706);
}

.scenario-icon-bg.green {
    background: linear-gradient(135deg, #10b981, #059669);
}

.scenario-icon-bg.purple {
    background: linear-gradient(135deg, #8b5cf6, #7c3aed);
}

.scenario-content {
    flex: 1;
    padding: var(--space-8);
}

.scenario-content h3 {
    font-size: 1.375rem;
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
}

.scenario-content p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.scenario-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.tag {
    padding: var(--space-1) var(--space-3);
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    color: var(--primary-300);
}

/* ========================================
   部署方式
   ======================================== */
.deployment {
    background: var(--bg-dark);
    padding: var(--space-24) 0;
}

.deployment-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.deployment-text h2 {
    font-size: 2.25rem;
    font-weight: 700;
    margin: var(--space-4) 0 var(--space-6);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.deployment-text > p {
    font-size: 1.0625rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-8);
}

.deployment-options {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

.deployment-option {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-6);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
}

.deployment-option:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: translateX(8px);
}

.option-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
    flex-shrink: 0;
}

.option-content h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-2);
    color: var(--text-primary);
}

.option-content p {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.6;
}

.deployment-diagram {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
}

.deploy-box {
    width: 200px;
    height: 200px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    text-align: center;
    padding: var(--space-6);
    transition: all var(--transition-normal);
}

.deploy-box:hover {
    border-color: rgba(99, 102, 241, 0.3);
    transform: scale(1.05);
}

.deploy-box i {
    font-size: 3rem;
    color: var(--primary-400);
    margin-bottom: var(--space-2);
}

.deploy-box span {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.deploy-box small {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

.deploy-connector {
    font-size: 1.5rem;
    color: var(--primary-400);
}

/* ========================================
   关于我们 / CTA
   ======================================== */
/* 关于我们区域 */
.about {
    background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-dark-light) 100%);
    padding: var(--space-20) 0;
}

.about .section-header {
    text-align: center;
    margin-bottom: var(--space-12);
}

.about .section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: var(--space-4) 0 var(--space-4);
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about .section-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-12);
    align-items: start;
}

.about-text {
    padding-top: var(--space-4);
}

.about-text > p {
    font-size: 1.0625rem;
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.company-info {
    margin-top: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.info-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: 0.9375rem;
    color: var(--text-secondary);
}

.info-item i {
    width: 40px;
    height: 40px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-400);
}

.cta-card {
    background: linear-gradient(145deg, var(--bg-card), rgba(99, 102, 241, 0.03));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--space-8);
    align-items: start;
}

.cta-content h3 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-3);
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--text-primary), var(--primary-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.cta-content > p {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-6);
    line-height: 1.6;
}

/* 联系方式样式 */
.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
}

.contact-phone,
.contact-wechat {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-4);
    background: rgba(99, 102, 241, 0.05);
    border: 1px solid rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
}

.contact-phone:hover,
.contact-wechat:hover {
    background: rgba(99, 102, 241, 0.1);
    border-color: rgba(99, 102, 241, 0.2);
}

.contact-phone i,
.contact-wechat i {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.contact-wechat i {
    background: linear-gradient(135deg, #2f7cf6, #1e5fd9);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

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

.phone-number {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
}

.phone-number:hover {
    color: var(--primary-400);
}

.wechat-note {
    font-size: 0.9375rem;
    color: var(--text-secondary);
    margin: 0;
}

.work-time {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: 0.875rem;
    color: var(--text-muted);
    padding: var(--space-3) var(--space-4);
    background: rgba(15, 23, 42, 0.3);
    border-radius: var(--radius-lg);
}

.work-time i {
    color: var(--primary-400);
}

/* 企业微信二维码 */
.contact-wechat-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: var(--space-6);
    background: linear-gradient(145deg, rgba(99, 102, 241, 0.08), rgba(139, 92, 246, 0.05));
    border: 1px solid rgba(99, 102, 241, 0.15);
    border-radius: var(--radius-xl);
    position: relative;
    overflow: hidden;
}

.contact-wechat-qr::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-cyan), var(--primary-500));
    opacity: 0.6;
}

.qr-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
    padding: var(--space-2) var(--space-4);
    background: rgba(47, 124, 246, 0.1);
    border-radius: 2rem;
}

.qr-header i {
    font-size: 1rem;
    color: #2f7cf6;
}

.qr-header span {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
}

.qr-wrapper {
    position: relative;
    padding: var(--space-2);
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    margin-bottom: var(--space-4);
}

.qr-image {
    display: block;
    width: 180px;
    height: 180px;
    object-fit: contain;
    border-radius: var(--radius-md);
}

.qr-decoration {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.qr-decoration .corner {
    position: absolute;
    width: 16px;
    height: 16px;
    border-color: var(--primary-500);
    border-style: solid;
    opacity: 0.5;
}

.qr-decoration .corner.top-left {
    top: -4px;
    left: -4px;
    border-width: 2px 0 0 2px;
    border-radius: 4px 0 0 0;
}

.qr-decoration .corner.top-right {
    top: -4px;
    right: -4px;
    border-width: 2px 2px 0 0;
    border-radius: 0 4px 0 0;
}

.qr-decoration .corner.bottom-left {
    bottom: -4px;
    left: -4px;
    border-width: 0 0 2px 2px;
    border-radius: 0 0 0 4px;
}

.qr-decoration .corner.bottom-right {
    bottom: -4px;
    right: -4px;
    border-width: 0 2px 2px 0;
    border-radius: 0 0 4px 0;
}

.qr-tip {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-align: center;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.qr-tip::before {
    content: '';
    width: 4px;
    height: 4px;
    background: var(--primary-400);
    border-radius: 50%;
}

/* 响应式 - 关于我们区域 */
@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }
    
    .cta-card {
        grid-template-columns: 1fr;
        padding: var(--space-6);
    }
    
    .contact-wechat-qr {
        margin-top: var(--space-6);
    }
}

@media (max-width: 768px) {
    .about {
        padding: var(--space-16) 0;
    }
    
    .about .section-header h2 {
        font-size: 1.75rem;
    }
    
    .about .section-subtitle {
        font-size: 1rem;
    }
    
    .about-content {
        gap: var(--space-8);
    }
    
    .cta-card {
        padding: var(--space-5);
    }
    
    .cta-content h3 {
        font-size: 1.375rem;
    }
    
    .contact-methods {
        gap: var(--space-3);
    }
    
    .contact-phone,
    .contact-wechat {
        padding: var(--space-3);
    }
    
    .contact-phone i,
    .contact-wechat i {
        width: 44px;
        height: 44px;
        font-size: 1rem;
    }
    
    .phone-number {
        font-size: 1.125rem;
    }
    
    .qr-image {
        width: 140px;
        height: 140px;
    }
    
    .qr-wrapper {
        padding: var(--space-1);
    }
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    padding: var(--space-16) 0 var(--space-8);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: var(--space-16);
    margin-bottom: var(--space-12);
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
}

.footer-desc {
    font-size: 0.9375rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: var(--space-6);
    max-width: 300px;
}

.footer-social {
    display: flex;
    gap: var(--space-3);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-dark-lighter);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all var(--transition-normal);
}

.social-link:hover {
    background: var(--primary-500);
    color: white;
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-8);
}

.footer-column h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-4);
}

.footer-column ul {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-column a {
    font-size: 0.875rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.footer-column a:hover {
    color: var(--primary-400);
}

.footer-bottom {
    padding-top: var(--space-8);
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.icp a {
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

.icp a:hover {
    color: var(--primary-400);
}

/* ========================================
   返回顶部按钮
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 1.125rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 1200px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .features-grid,
    .advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .deployment-content,
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .deployment-visual {
        order: -1;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }
    
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav-menu,
    .nav-actions {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
        align-items: center;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .features-tabs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .features-grid,
    .advantages-grid {
        grid-template-columns: 1fr;
    }
    
    .scenario-card {
        flex-direction: column;
    }
    
    .scenario-image {
        width: 100%;
        padding: var(--space-8) 0;
    }
    
    .deployment-diagram {
        flex-direction: column;
    }
    
    .deploy-connector {
        transform: rotate(90deg);
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    section {
        padding: var(--space-16) 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   通知提示
   ======================================== */
.notification {
    position: fixed;
    top: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    padding: 1rem 1.5rem;
    border-radius: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9375rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    z-index: 10000;
    opacity: 0;
    transition: all 0.3s ease;
}

.notification-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.notification-info {
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: white;
}

.notification-error {
    background: linear-gradient(135deg, #ef4444, #dc2626);
    color: white;
}

/* ========================================
   动画效果
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 移动菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(20px);
    z-index: 999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-6);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
}

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

.mobile-menu a {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    padding: var(--space-2) 0;
    position: relative;
}

.mobile-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-500), var(--accent-cyan));
    transition: width var(--transition-normal);
}

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

.mobile-menu .btn {
    margin-top: var(--space-4);
}

.mobile-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.mobile-menu-close:hover {
    background: rgba(255, 255, 255, 0.1);
}