/* style.css */
:root {
    --primary: #1a56db;
    --secondary: #0e2e6e;
    --accent: #3b82f6;
    --light: #f3f4f6;
    --dark: #1f2937;
    --success: #10b981;
    --warning: #f59e0b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f8fafc;
    color: #334155;
    line-height: 1.6;
}

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

/* 头部样式 */
header {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary) 100%);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 5px 10px;
    border-radius: 4px;
}

.nav-links a:hover, .nav-links a.active {
    background-color: rgba(255, 255, 255, 0.2);
}

.mobile-menu {
    display: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(rgba(14, 46, 110, 0.9), rgba(14, 46, 110, 0.8)), url('https://images.unsplash.com/photo-1607082350899-7e105aa886ae?ixlib=rb-4.0.3') center/cover;
    color: white;
    padding: 100px 0;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 800;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.4rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background-color: var(--success);
    color: white;
    padding: 30px 40px;
    font-size: 1.2rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.cta-button:hover {
    background-color: #0da271;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}

/* 产品介绍部分 */
.section {
    padding: 80px 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--accent);
    border-radius: 2px;
}

.section-title p {
    max-width: 700px;
    margin: 20px auto 0;
    font-size: 1.2rem;
    color: #64748b;
}

.problem-solution {
    display: flex;
    gap: 40px;
    margin-bottom: 60px;
}

.problem, .solution {
    flex: 1;
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.problem:hover, .solution:hover {
    transform: translateY(-5px);
}

.problem {
    border-top: 5px solid var(--warning);
}

.solution {
    border-top: 5px solid var(--success);
}

.problem h3, .solution h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.problem h3 i, .solution h3 i {
    font-size: 1.5rem;
}

.problem ul, .solution ul {
    padding-left: 20px;
}

.problem li, .solution li {
    margin-bottom: 12px;
    position: relative;
    padding-left: 30px;
}

.problem li::before, .solution li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 15px;
    height: 15px;
    border-radius: 50%;
}

.problem li::before {
    background-color: var(--warning);
}

.solution li::before {
    background-color: var(--success);
}

.value-proposition {
    margin-top: 60px;
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 25px;
}

.value-card {
    background: white;
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.value-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
}

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

/* 业务场景部分 */
.scenarios {
    background-color: #f1f5f9;
}

.scenario-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.scenario-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.scenario-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.scenario-icon {
    background: var(--primary);
    color: white;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.scenario-content {
    padding: 30px;
}

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

/* 架构部分 */
.architectures {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 40px;
}

.architecture-card {
    background: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--accent);
    transition: transform 0.3s ease;
}

.architecture-card:hover {
    transform: translateY(-5px);
}

.architecture-card h3 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.architecture-card h3 i {
    background: var(--accent);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.architecture-steps {
    margin: 25px 0;
    padding-left: 20px;
    border-left: 2px solid var(--light);
}

.architecture-step {
    margin-bottom: 20px;
    position: relative;
    padding-left: 30px;
}

.architecture-step::before {
    content: '';
    position: absolute;
    left: -1px;
    top: 8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
}

.architecture-advantages {
    background: #eef2ff;
    padding: 20px;
    border-radius: 8px;
    margin-top: 25px;
}

.architecture-advantages h4 {
    color: var(--primary);
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.advantages-list li {
    margin-bottom: 8px;
    padding-left: 25px;
    position: relative;
}

.advantages-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: bold;
}

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

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: var(--accent);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-column ul li a {
    color: #cbd5e1;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-column ul li a:hover {
    color: white;
}

.copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #334155;
    color: #94a3b8;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .problem-solution {
        flex-direction: column;
    }
    
    .architectures {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero h2 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .nav-links {
        position: fixed;
        top: 78px;
        right: -100%;
        flex-direction: column;
        background: var(--secondary);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 20px 0;
        gap: 10px;
    }
    
    .nav-links.show {
        right: 0;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
    
    .architectures {
        grid-template-columns: 1fr;
    }
}