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

:root {
    --primary: #1a56db;
    --primary-dark: #0e3a9e;
    --secondary: #0e9e6d;
    --dark: #1f2d3d;
    --light: #f8fafc;
    --gray: #64748b;
    --light-gray: #e2e8f0;
    --accent: #f59e0b;
    --gradient: linear-gradient(135deg, var(--primary), var(--secondary));
}

body {
    font-family: 'Noto Sans SC', 'Roboto', sans-serif;
    color: var(--dark);
    background-color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* 导航栏样式 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    color: var(--accent);
}

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

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.cta-button {
    background: var(--gradient);
    color: white;
    border: none;
    padding: 10px 25px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    font-size: 1rem;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(26, 86, 219, 0.3);
}

/* 英雄区域样式 */
.hero {
    padding: 180px 0 100px;
    background: linear-gradient(120deg, #f0f9ff 0%, #e6f7ff 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L100,100 Q50,80 0,100" fill="rgba(255,255,255,0.7)"/></svg>');
    background-size: cover;
    background-position: bottom;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    line-height: 1.2;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.3rem;
    color: var(--gray);
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
    padding: 12px 30px;
    border-radius: 30px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

/* 特性卡片样式 */
.section {
    padding: 100px 0;
}

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

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.section-title p {
    color: var(--gray);
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(26, 86, 219, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 25px;
    color: white;
    font-size: 2rem;
}

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

.feature-card p {
    color: var(--gray);
}

/* 解决方案部分 */
.solutions {
    background-color: #f8fafc;
    position: relative;
    overflow: hidden;
}

.solutions::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100" preserveAspectRatio="none"><path d="M0,0 L100,0 L50,100 L0,100" fill="rgba(26, 86, 219, 0.03)"/></svg>');
    background-size: cover;
    z-index: 0;
}

.solution-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 50px;
}

.solution-image {
    flex: 1;
    min-width: 300px;
    position: relative;
}

.solution-image::before {
    content: "";
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid var(--primary);
    border-radius: 10px;
    top: -20px;
    left: -20px;
    z-index: -1;
}

.solution-image img {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.solution-text {
    flex: 1;
    min-width: 300px;
}

.solution-text h2 {
    font-size: 2.5rem;
    margin-bottom: 25px;
    color: var(--dark);
}

.solution-text p {
    margin-bottom: 25px;
    color: var(--gray);
    font-size: 1.1rem;
}

.solution-list {
    list-style: none;
    margin: 30px 0;
}

.solution-list li {
    margin-bottom: 15px;
    display: flex;
    align-items: flex-start;
}

.solution-list li i {
    color: var(--secondary);
    margin-right: 15px;
    margin-top: 5px;
    font-size: 1.2rem;
}

/* 工作流程部分 */
.process-steps {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 50px;
}

.step-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    width: 250px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    position: relative;
    z-index: 1;
}

.step-number {
    position: absolute;
    top: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
}

.step-icon {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 20px;
}

.step-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
}

.step-card p {
    color: var(--gray);
    font-size: 0.95rem;
}

/* 数据展示部分 */
.stats {
    background: var(--gradient);
    color: white;
    padding: 80px 0;
    text-align: center;
}

.stats-container {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 50px;
    margin-top: 50px;
}

.stat-item {
    min-width: 200px;
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* 应用场景部分 */
.use-cases {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.case-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s;
}

.case-card:hover {
    transform: translateY(-10px);
}

.case-image {
    height: 200px;
    background: var(--light-gray);
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0), rgba(0,0,0,0.7));
    z-index: 1;
}

.case-title {
    position: absolute;
    bottom: 20px;
    left: 20px;
    color: white;
    font-size: 1.5rem;
    z-index: 2;
}

.case-content {
    padding: 25px;
}

.case-content p {
    color: var(--gray);
    margin-bottom: 15px;
}

/* CTA部分 */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: white;
    padding: 100px 0;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.8rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 40px;
    opacity: 0.9;
}

/* 页脚样式 */
footer {
    background: var(--dark);
    color: white;
    padding: 70px 0 30px;
}

.footer-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    margin-bottom: 50px;
}

.footer-column {
    flex: 1;
    min-width: 250px;
}

.footer-column h3 {
    font-size: 1.3rem;
    margin-bottom: 25px;
    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: 15px;
}

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

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #94a3b8;
    font-size: 0.9rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 70px 0;
    }
    
    .hero {
        padding: 150px 0 80px;
    }
    
    .hero h1 {
        font-size: 2.3rem;
    }
    
    .section-title h2 {
        font-size: 2rem;
    }
}