/* ===== 全局CSS重置和变量定义 ===== */
:root {
    /* 主色调 */
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 100%);
    
    /* 辅助色 */
    --secondary-color: #10b981;
    --accent-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* 中性色 */
    --dark-gray: #1f2937;
    --medium-gray: #6b7280;
    --light-gray: #f3f4f6;
    --white: #ffffff;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* 字体 */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    
    /* 间距 */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* 边框半径 */
    --border-radius-sm: 0.25rem;
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    --border-radius-2xl: 1.5rem;
    --border-radius-full: 9999px;
    
    /* 过渡 */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ===== 额外的动画效果 ===== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes rotateIn {
    from {
        opacity: 0;
        transform: rotate(-10deg);
    }
    to {
        opacity: 1;
        transform: rotate(0);
    }
}

@keyframes bounceIn {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 5px rgba(37, 99, 235, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(37, 99, 235, 0.8);
    }
    100% {
        box-shadow: 0 0 5px rgba(37, 99, 235, 0.5);
    }
}

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

@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.6;
    color: var(--dark-gray);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

a:hover {
    color: var(--primary-dark);
}

ul, ol {
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

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

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

/* ===== 通用组件 ===== */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    color: var(--dark-gray);
    position: relative;
}

.section-title::after {
    content: "";
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-full);
}

.cta-button {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background-color: var(--primary-color);
    color: var(--white);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

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

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

.cta-button.secondary:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

.cta-button.primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: var(--shadow-lg);
}

/* ===== 导航栏 ===== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    z-index: 1000;
    transition: var(--transition);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.1);
    transform: translateY(0);
    padding: 0;
    margin: 0;
    height: 80px;
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.95);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.nav-logo {
    display: flex;
    align-items: center;
}

.nav-logo a {
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.nav-logo a:hover {
    transform: scale(1.05);
}

.logo-image {
    height: 40px;
    width: auto;
    object-fit: contain;
}

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

.nav-menu li a {
    font-weight: 500;
    color: var(--dark-gray);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
    position: relative;
}

.nav-menu li a::after {
    content: "";
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: var(--border-radius-full);
}

.nav-menu li a:hover::after {
    transform: translateX(-50%) scaleX(1);
}

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

.nav-cta .cta-button {
    background: var(--primary-gradient);
    color: var(--white);
    font-weight: 600;
}

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    cursor: pointer;
}

.hamburger span {
    display: block;
    height: 2px;
    width: 100%;
    background-color: var(--dark-gray);
    border-radius: var(--border-radius-full);
    transition: var(--transition);
}



/* ===== 巨幕/首屏区域 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: var(--spacing-3xl) 0;
    overflow: hidden;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

/* 巨幕背景动画 */
.hero-background::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.1) 0%, transparent 50%);
    animation: moveGradient 15s ease infinite;
}

@keyframes moveGradient {
    0%, 100% {
        transform: translateX(0) translateY(0);
    }
    25% {
        transform: translateX(-5%) translateY(5%);
    }
    50% {
        transform: translateX(-10%) translateY(-5%);
    }
    75% {
        transform: translateX(5%) translateY(-10%);
    }
}

/* 巨幕内容入场动画 */
.hero-badge {
    animation: slideInLeft 1s ease-out forwards;
    opacity: 0;
}

.hero-title {
    animation: slideInLeft 1s 0.2s ease-out forwards;
    opacity: 0;
}

.hero-subtitle {
    animation: slideInLeft 1s 0.4s ease-out forwards;
    opacity: 0;
}

.hero-description {
    animation: slideInLeft 1s 0.6s ease-out forwards;
    opacity: 0;
}

.hero-stats {
    animation: slideInLeft 1s 0.8s ease-out forwards;
    opacity: 0;
}

.hero-cta {
    animation: slideInLeft 1s 1s ease-out forwards;
    opacity: 0;
}

.trust-badges {
    animation: slideInLeft 1s 1.2s ease-out forwards;
    opacity: 0;
}

/* 巨幕视觉元素入场动画 */
.hero-visual {
    animation: slideInRight 1s 0.5s ease-out forwards;
    opacity: 0;
}

/* 鼠标悬停效果 */
.hero-visual:hover .hero-dashboard {
    transform: scale(1.02);
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.3);
}

/* 巨幕按钮高级悬停效果 */
.cta-button {
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.cta-button::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transform: translateX(-100%);
    transition: transform 0.6s;
    z-index: -1;
}

.cta-button:hover::before {
    transform: translateX(0);
}

/* 数字增加动画 */
.stat-number {
    display: inline-block;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle at 1px 1px, rgba(37, 99, 235, 0.15) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0) translateX(0); }
    100% { transform: translateY(-40px) translateX(-40px); }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-md);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--medium-gray);
}

.hero-description {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-2xl);
    color: var(--medium-gray);
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    margin-bottom: var(--spacing-2xl);
    gap: var(--spacing-xl);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

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

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.trust-badges {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    color: var(--medium-gray);
}

.badge-icon {
    font-size: 1.25rem;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-dashboard {
    width: 100%;
    max-width: 500px;
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-2xl);
    overflow: hidden;
    animation: float-dashboard 6s ease-in-out infinite;
}

@keyframes float-dashboard {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(1deg); }
}

.dashboard-header {
    background: var(--primary-gradient);
    color: var(--white);
    padding: var(--spacing-md) var(--spacing-lg);
    font-weight: 600;
    text-align: center;
}

.dashboard-content {
    padding: var(--spacing-lg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.dashboard-card {
    background: var(--light-gray);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-md);
    height: 100%;
}

.card-header {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
}

.card-chart {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    height: 80px;
}

.chart-bar {
    width: 20px;
    background: var(--primary-gradient);
    border-radius: var(--border-radius-sm) var(--border-radius-sm) 0 0;
}

.card-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.list-item {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-size: 0.875rem;
}

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

.dashboard-footer {
    display: flex;
    justify-content: space-around;
    background: var(--light-gray);
    padding: var(--spacing-md);
    font-size: 0.875rem;
    color: var(--medium-gray);
}

.scroll-hint {
    position: absolute;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--medium-gray);
    font-size: 0.875rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

.scroll-hint span {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

/* ===== 核心优势 ===== */
.advantages {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-xl);
    max-width: 1000px;
    margin: 0 auto;
}

.advantage-card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

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

.advantage-card:hover::before {
    transform: scaleX(1);
}

.advantage-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-lg);
    transition: var(--transition);
}

.advantage-card:hover .advantage-icon {
    transform: scale(1.1);
}

.advantage-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
    transition: var(--transition);
}

.advantage-card p {
    color: var(--medium-gray);
    line-height: 1.6;
}

/* 入场动画 */
.advantage-card:nth-child(1) {
    animation: slideInUp 0.8s 0.1s ease-out forwards;
    opacity: 0;
}

.advantage-card:nth-child(2) {
    animation: slideInUp 0.8s 0.2s ease-out forwards;
    opacity: 0;
}

.advantage-card:nth-child(3) {
    animation: slideInUp 0.8s 0.3s ease-out forwards;
    opacity: 0;
}

.advantage-card:nth-child(4) {
    animation: slideInUp 0.8s 0.4s ease-out forwards;
    opacity: 0;
}

/* ===== 核心功能 ===== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.feature-item {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.feature-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
    transform: translateX(-100%);
    transition: transform 0.6s;
}

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

.feature-item:hover::after {
    transform: translateX(0);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    transition: var(--transition);
    display: inline-block;
}

.feature-item:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--accent-color);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow);
    animation: pulse 2s infinite;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--dark-gray);
    position: relative;
    z-index: 1;
}

.feature-item p {
    color: var(--medium-gray);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* 入场动画 */
.feature-item:nth-child(1) {
    animation: slideInUp 0.8s 0.1s ease-out forwards;
    opacity: 0;
}

.feature-item:nth-child(2) {
    animation: slideInUp 0.8s 0.2s ease-out forwards;
    opacity: 0;
}

.feature-item:nth-child(3) {
    animation: slideInUp 0.8s 0.3s ease-out forwards;
    opacity: 0;
}

.feature-item:nth-child(4) {
    animation: slideInUp 0.8s 0.4s ease-out forwards;
    opacity: 0;
}

.feature-item:nth-child(5) {
    animation: slideInUp 0.8s 0.5s ease-out forwards;
    opacity: 0;
}

.feature-item:nth-child(6) {
    animation: slideInUp 0.8s 0.6s ease-out forwards;
    opacity: 0;
}

/* ===== 价格方案 ===== */
.pricing {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.pricing-grid {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

.pricing-card {
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    width: 100%;
    max-width: 380px;
    position: relative;
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    animation: scaleIn 0.8s ease-out forwards;
    opacity: 0;
}

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

.pricing-card.featured {
    border: 2px solid var(--primary-color);
    transform: scale(1.05);
    animation: scaleIn 0.8s 0.2s ease-out forwards, glow 2s infinite 1s;
}

.popular-badge {
    position: absolute;
    top: 0;
    right: 20px;
    background: var(--primary-gradient);
    color: var(--white);
    font-size: 0.875rem;
    font-weight: 600;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
    animation: bounceIn 0.8s 1s ease-out forwards;
    opacity: 0;
}

.pricing-header {
    padding: var(--spacing-2xl) var(--spacing-xl);
    text-align: center;
    background: var(--light-gray);
}

.pricing-header h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--medium-gray);
}

.features-list {
    padding: var(--spacing-xl);
}

.features-list li {
    margin-bottom: var(--spacing-sm);
    color: var(--medium-gray);
    display: flex;
    align-items: flex-start;
}

.features-list li::before {
    content: "✓";
    color: var(--secondary-color);
    font-weight: 700;
    margin-right: var(--spacing-sm);
}

.pricing-btn {
    display: block;
    width: 80%;
    margin: 0 auto var(--spacing-xl);
    padding: var(--spacing-md) 0;
    background: var(--light-gray);
    color: var(--dark-gray);
    font-weight: 600;
    text-align: center;
    border-radius: var(--border-radius-full);
    transition: var(--transition);
}

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

.pricing-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* ===== 适用行业 ===== */
.industries {
    padding: var(--spacing-3xl) 0;
    background: var(--light-gray);
    position: relative;
    overflow: hidden;
}

.industries::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
}

.industry-item {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-2xl);
    text-align: center;
    font-weight: 600;
    font-size: 1rem;
    color: var(--dark-gray);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 130px;
}

.industry-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--primary-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.5s ease;
}

.industry-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.industry-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.industry-item:hover::before {
    transform: scaleX(1);
}

.industry-item:hover::after {
    opacity: 1;
}

/* 图标美化 */
.industry-item {
    font-size: 2rem;
    line-height: 1.2;
}

/* 入场动画 */
.industry-item:nth-child(1) {
    animation: slideInUp 0.8s 0.1s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(2) {
    animation: slideInUp 0.8s 0.2s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(3) {
    animation: slideInUp 0.8s 0.3s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(4) {
    animation: slideInUp 0.8s 0.4s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(5) {
    animation: slideInUp 0.8s 0.5s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(6) {
    animation: slideInUp 0.8s 0.6s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(7) {
    animation: slideInUp 0.8s 0.7s ease-out forwards;
    opacity: 0;
}

.industry-item:nth-child(8) {
    animation: slideInUp 0.8s 0.8s ease-out forwards;
    opacity: 0;
}

/* ===== 客户案例 ===== */
.testimonials {
    padding: var(--spacing-3xl) 0;
    background: var(--white);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
}

.testimonial-card {
    background: var(--white);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    animation: slideInUp 0.8s ease-out forwards;
    opacity: 0;
}

.testimonial-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.5s ease;
}

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

.testimonial-card:hover::before {
    transform: scaleY(1);
}

.testimonial-content {
    margin-bottom: var(--spacing-lg);
    font-style: italic;
    color: var(--medium-gray);
    line-height: 1.6;
    position: relative;
}

.testimonial-content::before {
    content: """;
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
    top: -10px;
    left: -10px;
    transition: var(--transition);
}

.testimonial-card:hover .testimonial-content::before {
    opacity: 0.5;
    transform: rotate(5deg);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.author-avatar {
    width: 50px;
    height: 50px;
    border-radius: var(--border-radius-full);
    background: var(--light-gray);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    transition: var(--transition);
}

.testimonial-card:hover .author-avatar {
    transform: scale(1.1);
    background: var(--primary-gradient);
    color: var(--white);
}

.author-info h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--dark-gray);
}

.author-info p {
    font-size: 0.875rem;
    color: var(--medium-gray);
}

/* 入场动画 */
.testimonial-card:nth-child(1) {
    animation-delay: 0.1s;
}

.testimonial-card:nth-child(2) {
    animation-delay: 0.2s;
}

.testimonial-card:nth-child(3) {
    animation-delay: 0.3s;
}

/* ===== 技术优势 ===== */
.technology {
    padding: var(--spacing-3xl) 0;
    background: var(--light-gray);
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.tech-description {
    margin-bottom: var(--spacing-xl);
    color: var(--medium-gray);
    font-size: 1.125rem;
    line-height: 1.7;
    animation: slideInLeft 0.8s ease-out forwards;
    opacity: 0;
}

.tech-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.tech-feature {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    opacity: 0;
    animation: slideInLeft 0.8s ease-out forwards;
}

.tech-feature:nth-child(1) {
    animation-delay: 0.2s;
}

.tech-feature:nth-child(2) {
    animation-delay: 0.4s;
}

.tech-feature:nth-child(3) {
    animation-delay: 0.6s;
}

.tech-icon {
    font-size: 2rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.tech-feature:hover .tech-icon {
    transform: scale(1.2) rotate(5deg);
    color: var(--primary-color);
}

.tech-text h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--dark-gray);
}

.tech-text p {
    color: var(--medium-gray);
    line-height: 1.5;
}

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

.tech-dashboard {
    width: 100%;
    max-width: 400px;
    background: var(--white);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    animation: slideInRight 0.8s ease-out forwards;
    opacity: 0;
    position: relative;
    overflow: hidden;
}

.tech-dashboard::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.1) 0%, rgba(59, 130, 246, 0.1) 100%);
    opacity: 0;
    transition: opacity 0.5s;
}

.tech-dashboard:hover::before {
    opacity: 1;
}

.dashboard-layers {
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 1;
}

.layer {
    padding: var(--spacing-md);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-weight: 500;
    color: var(--dark-gray);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.layer::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transform-origin: bottom;
    transition: transform 0.3s;
}

.layer:hover {
    background: var(--light-gray);
    padding-left: var(--spacing-lg);
}

.layer:hover::before {
    transform: scaleY(1);
}

.layer:last-child {
    border-bottom: none;
}

/* ===== 常见问题解答 ===== */
.faq {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    position: relative;
}

.faq::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.05) 0%, transparent 50%),
                radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.05) 0%, transparent 50%);
    z-index: 0;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.faq-item {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-2xl);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.faq-item::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 5px;
    height: 100%;
    background: var(--primary-gradient);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.5s ease;
}

.faq-item::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(59, 130, 246, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.faq-item:hover::before {
    transform: scaleY(1);
}

.faq-item:hover::after {
    opacity: 1;
}

.faq-item h3 {
    margin-bottom: var(--spacing-md);
    color: var(--dark-gray);
    position: relative;
    padding-left: var(--spacing-lg);
    font-weight: 700;
    font-size: 1.125rem;
    display: flex;
    align-items: center;
}

.faq-item h3::before {
    content: "?";
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 28px;
    height: 28px;
    background: var(--primary-gradient);
    color: var(--white);
    border-radius: var(--border-radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.875rem;
    font-weight: 700;
    box-shadow: var(--shadow-sm);
}

.faq-item p {
    color: var(--medium-gray);
    line-height: 1.7;
    font-size: 1rem;
    position: relative;
    z-index: 1;
}

/* 入场动画 */
.faq-item:nth-child(1) {
    animation: slideInUp 0.8s 0.1s ease-out forwards;
    opacity: 0;
}

.faq-item:nth-child(2) {
    animation: slideInUp 0.8s 0.2s ease-out forwards;
    opacity: 0;
}

.faq-item:nth-child(3) {
    animation: slideInUp 0.8s 0.3s ease-out forwards;
    opacity: 0;
}

.faq-item:nth-child(4) {
    animation: slideInUp 0.8s 0.4s ease-out forwards;
    opacity: 0;
}

.faq-item:nth-child(5) {
    animation: slideInUp 0.8s 0.5s ease-out forwards;
    opacity: 0;
}

.faq-item:nth-child(6) {
    animation: slideInUp 0.8s 0.6s ease-out forwards;
    opacity: 0;
}

/* ===== CTA 区域 ===== */
.cta-section {
    padding: var(--spacing-3xl) 0;
    background: var(--primary-gradient);
    color: var(--white);
}

.cta-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
}

.cta-form {
    margin-bottom: var(--spacing-xl);
}

.cta-btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-2xl);
    background: var(--white);
    color: var(--primary-color);
    font-weight: 700;
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.cta-features span {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    opacity: 0.8;
}

/* ===== 页脚 ===== */
.footer {
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
    background: var(--dark-gray);
    color: var(--white);
}

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

.footer-section h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--white);
    padding-left: var(--spacing-xs);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.875rem;
}

/* ===== 响应式设计 ===== */
@media (max-width: 1400px) {
    .container {
        max-width: 1140px;
    }
}

@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
    
    .hero-title {
        font-size: 3.2rem;
    }
    
    .tech-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
}

@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-visual {
        order: -1;
        max-width: 600px;
        margin: 0 auto;
    }
    
    .hero-dashboard {
        max-width: 450px;
    }
    
    .faq-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .faq-item {
        padding: var(--spacing-lg);
    }
    
    .faq-item h3 {
        font-size: 1rem;
    }
    
    .faq-item p {
        font-size: 0.875rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    .navbar {
        height: 70px;
    }
    
    .nav-container {
        height: 70px;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-xl) 0;
        border-radius: 0 0 var(--border-radius-2xl) var(--border-radius-2xl);
        gap: var(--spacing-lg);
        max-height: calc(100vh - 70px);
        overflow-y: auto;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-menu li a {
        padding: var(--spacing-sm) 0;
        font-size: 1.125rem;
    }
    
    .nav-cta {
        margin-top: var(--spacing-md);
    }
    
    .nav-cta .cta-button {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: 1.125rem;
    }
    
    .hamburger {
        display: flex;
        z-index: 1001;
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    
    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero-title {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-stats {
        justify-content: center;
        gap: var(--spacing-lg);
        margin-bottom: var(--spacing-xl);
    }
    
    .hero-cta {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-cta .cta-button {
        min-width: 250px;
    }
    
    .trust-badges {
        justify-content: center;
        gap: var(--spacing-md);
    }
    
    .trust-badge {
        font-size: 0.8rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: var(--spacing-xl);
    }
    
    .pricing-grid {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-xl);
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .pricing-card {
        max-width: 100%;
    }
    
    .cta-features {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .advantages-grid,
    .features-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .tech-dashboard {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-description {
        font-size: 1rem;
    }
    
    .hero-badge {
        font-size: 0.8rem;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .stat-item {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .pricing-header {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .price {
        font-size: 2rem;
    }
    
    .features-list li {
        font-size: 0.875rem;
    }
    
    .pricing-btn {
        width: 90%;
    }
    
    .advantage-card,
    .feature-item,
    .testimonial-card {
        padding: var(--spacing-lg);
    }
    
    .industries-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
    
    .industry-item {
        padding: var(--spacing-lg);
        font-size: 1.125rem;
        min-height: 120px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-lg);
    }
    
    .footer-section {
        margin-bottom: var(--spacing-lg);
    }
    
    .tech-feature {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--spacing-md);
    }
    
    .testimonial-author {
        flex-direction: column;
        text-align: center;
    }
}

/* ===== 移动端触摸优化 ===== */
@media (hover: none) and (pointer: coarse) {
    .cta-button:hover {
        transform: none;
    }
    
    .advantage-card:hover,
    .feature-item:hover,
    .testimonial-card:hover,
    .pricing-card:hover,
    .industry-item:hover,
    .faq-item:hover {
        transform: none;
    }
    
    .advantage-card:active,
    .feature-item:active,
    .testimonial-card:active,
    .pricing-card:active,
    .industry-item:active,
    .faq-item:active {
        transform: scale(0.98);
        transition: transform 0.1s;
    }
}