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

:root {
    --primary-blue: #1A4D8F;
    --accent-green: #2EBF91;
    --dark-bg: #0F172A;
    --light-bg: #F8FAFC;
    --text-dark: #1E293B;
    --text-light: #F1F5F9;
    --transition-fast: 0.3s ease;
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}
.navbar {
    background: rgba(255, 255, 255, 0.98);
    position: fixed;
    width: 100%;
    padding: 1.2rem 0;
    box-shadow: 0 2px 15px rgba(0,0,0,0.1);
    z-index: 1000;
}

.logo {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-blue);
    letter-spacing: -1px;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
}

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

.nav-links a:hover {
    color: var(--accent-green);
}
h1{
	font-size: 40px;
}
/* 通用容器 */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 板块通用样式 */
section {
    padding: 8rem 0;
}

.section-dark {
    background: var(--dark-bg);
    color: var(--text-light);
}

.section-light {
    background: var(--light-bg);
}

/* 公司简介 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-top: 3rem;
}

.strengths {
    margin-top: 2rem;
    list-style: none;
}

.strengths li {
    margin: 1.5rem 0;
    padding: 1rem;
    background: rgba(255,255,255,0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.strengths i {
    font-size: 1.5rem;
    color: var(--accent-green);
}

/* 合作伙伴平台 */
.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.partner-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    transition: transform var(--transition-fast);
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

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

.partner-card img {
    width: 120px;
    height: auto;
    margin: 0 auto 1rem;
    filter: grayscale(100%);
    transition: filter var(--transition-fast);
}

.partner-card:hover img {
    filter: grayscale(0);
}

/* 流量平台 */
.traffic-sources {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-top: 4rem;
}

.source-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255,255,255,0.05);
    border-radius: 12px;
}

.source-item i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--accent-green);
}

/* 成就数据 */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.metric-box {
    background: rgba(255,255,255,0.95);
    padding: 2.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 6px 12px rgba(0,0,0,0.08);
}

.metric-value {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--accent-green);
    margin-bottom: 0.5rem;
}

/* 发展路线图 */
.roadmap-timeline {
    position: relative;
    margin-top: 4rem;
    padding-left: 2rem;
}

.timeline-item {
    position: relative;
    padding: 2rem 2rem 2rem 4rem;
    margin-bottom: 3rem;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    border-left: 3px solid var(--accent-green);
}

.timeline-year {
    position: absolute;
    left: -4rem;
    top: 1.5rem;
    background: var(--accent-green);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 600;
}

/* 联系方式 */
footer {
    background: var(--dark-bg);
    color: var(--text-light);
    padding: 4rem 0;
}

.contact-info {
    text-align: center;
    margin-bottom: 3rem;
}

.contact-info a {
    color: var(--accent-green);
    text-decoration: none;
    font-weight: 500;
}

.social-links {
    margin-top: 1.5rem;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    font-size: 1.5rem;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--accent-green);
}

.tech-stack {
    margin-top: 3rem;
    text-align: center;
}

.tech-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
}

.tech-icons img {
    height: 40px;
    opacity: 0.8;
    transition: opacity var(--transition-fast);
}

.tech-icons img:hover {
    opacity: 1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    section {
        padding: 6rem 0;
    }

    .metric-value {
        font-size: 2.5rem;
    }

    .roadmap-timeline {
        padding-left: 0;
    }

    .timeline-year {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }
}