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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: #f8fafc;
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.08);
}

.navbar .container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 30px;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: bold;
    color: #2563eb;
    text-decoration: none;
}

.navbar-nav {
    display: flex;
    list-style: none;
    gap: 35px;
}

.navbar-nav a {
    text-decoration: none;
    color: #475569;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 16px;
}

.navbar-nav a:hover {
    color: #2563eb;
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cg fill="none" fill-rule="evenodd"%3E%3Cg fill="%23ffffff" fill-opacity="0.05"%3E%3Cpath d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');
}

.hero .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 60px;
    position: relative;
    z-index: 1;
}

.hero-content {
    color: white;
}

.hero-title {
    font-size: 56px;
    font-weight: bold;
    margin-bottom: 25px;
    line-height: 1.15;
}

.hero-subtitle {
    font-size: 24px;
    margin-bottom: 20px;
    opacity: 0.95;
    line-height: 1.5;
}

.hero-desc {
    font-size: 18px;
    opacity: 0.9;
    line-height: 1.7;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.3);
}

/* 内容页面通用样式 */
.content-page {
    padding-top: 100px;
    padding-bottom: 80px;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.content-page .container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
}

.page-title {
    text-align: center;
    font-size: 44px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 20px;
}

.page-subtitle {
    text-align: center;
    font-size: 18px;
    color: #64748b;
    margin-bottom: 70px;
}

/* 价值卡片 */
.value-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.value-card {
    background: white;
    padding: 40px 35px;
    border-radius: 20px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #2563eb, #3b82f6);
}

.value-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
    border-color: #2563eb;
}

.value-icon {
    width: 70px;
    height: 70px;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-radius: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 32px;
    color: white;
}

.value-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1e293b;
}

.value-desc {
    color: #64748b;
    line-height: 1.8;
    font-size: 15px;
}

/* 功能卡片 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 45px 35px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s;
    border: 2px solid #e2e8f0;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(37, 99, 235, 0.15);
    border-color: #2563eb;
}

.feature-icon {
    width: 85px;
    height: 85px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, #2563eb, #1e40af);
    border-radius: 22px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 38px;
    color: white;
}

.feature-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 18px;
    color: #1e293b;
}

.feature-desc {
    color: #64748b;
    line-height: 1.8;
    font-size: 15px;
}

/* 场景卡片 */
.scenario-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
}

.scenario-card {
    background: white;
    border-radius: 25px;
    overflow: hidden;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
}

.scenario-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
}

.scenario-image {
    width: 100%;
    height: 300px;
    object-fit: cover;
}

.scenario-content {
    padding: 35px;
}

.scenario-title {
    font-size: 26px;
    font-weight: bold;
    color: #1e293b;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.scenario-title .material-icons {
    color: #2563eb;
}

.scenario-desc {
    color: #64748b;
    line-height: 1.8;
    margin-bottom: 25px;
    font-size: 16px;
}

.scenario-features {
    list-style: none;
    padding: 0;
}

.scenario-features li {
    padding: 10px 0;
    display: flex;
    align-items: center;
    gap: 12px;
    color: #475569;
    font-size: 15px;
}

.scenario-features li::before {
    content: '';
    width: 8px;
    height: 8px;
    background: #2563eb;
    border-radius: 50%;
}

/* 页脚 */
.footer {
    background: #1e293b;
    color: white;
    padding: 50px 20px;
}

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

.footer-links {
    display: flex;
    justify-content: center;
    gap: 35px;
    margin-bottom: 25px;
    list-style: none;
}

.footer-links a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s;
    font-size: 15px;
}

.footer-links a:hover {
    color: white;
}

.footer p {
    opacity: 0.7;
    font-size: 14px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 50px;
    }
    
    .scenario-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar-nav {
        gap: 15px;
    }
    
    .hero-title {
        font-size: 38px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .page-title {
        font-size: 32px;
    }
    
    .value-grid,
    .feature-grid {
        grid-template-columns: 1fr;
    }
}