* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
:root {
    --primary: #1e293b;
    --secondary: #3b82f6;
    --light: #f8fafc;
    --gray: #64748b;
}
 body {
    color: var(--primary);
    line-height: 1.6;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
/* 头部导航 */
/* 导航栏部分 */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #ffffff;
    z-index: 999;
	padding-top: 20px;
	padding-bottom: 20px;
}
.navbar-container {
    max-width: 1920px;
    height: 100%;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    color: #000000;
    font-size: 40px;
    font-weight: bold;
    text-decoration: none;
	text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}
.pc-nav {
    display: flex;
    list-style: none;
    height: 100%;
}
.pc-nav li {
    position: relative;
    height: 100%;
}
.pc-nav li a {
    display: block;
    padding: 0 20px;
	font-size: 35px;
    color: #000000;
    text-decoration: none;
    transition: background 0.3s;
}
.pc-nav li a:hover {
    background-color: #d9dbdd;
}
.pc-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: #fff;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    list-style: none;
    display: none;
}
.pc-dropdown li a {
    color: #333;
    line-height: 70px;
    padding: 0 20px;
}
.pc-dropdown li a:hover {
    background-color: #f3f4f6;
    color: red;
}
.pc-nav li:hover .pc-dropdown {
    display: block;
}
.hamburger {
    display: none;
    background: none;
    border: none;
    color: black;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}
.mobile-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    width: 100%;
    height: calc(100vh - 60px);
    background-color: #fff;
    overflow-y: auto;
}
.mobile-nav {
    list-style: none;
}
.mobile-nav > li {
    border-bottom: 1px solid #e5e7eb;
}
.mobile-nav > li > a {
    display: block;
    padding: 16px 20px;
    color: #333;
    text-decoration: none;
    font-size: 16px;
}
.mobile-dropdown {
    list-style: none;
    background-color: #f9fafb;
    display: none;
}
.mobile-dropdown li a {
    display: block;
    padding: 14px 20px 14px 40px;
    color: #666;
    text-decoration: none;
    font-size: 15px;
    border-bottom: 1px solid #e5e7eb;
}
        /* Hero区域 */
        .hero {
            background: var(--primary);
            color: white;
            padding: 80px 0 120px;
            position: relative;
        }
        .hero-content {
            max-width: 600px;
        }
        .hero-badge {
            background: rgba(255,255,255,0.1);
            display: inline-block;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 12px;
            margin-bottom: 12px;
        }
        .hero h1 {
            font-size: 32px;
            margin-bottom: 12px;
        }
        .hero p {
            font-size: 14px;
            opacity: 0.8;
            max-width: 400px;
        }
        /* 数据卡片 */
        .stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-top: -50px;
            position: relative;
            z-index: 10;
            margin-bottom: 60px;
        }
        .stat-card {
            background: white;
            padding: 20px;
            border-radius: 8px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            text-align: center;
            transition: all 0.3s ease;
            cursor: default;
        }
        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.12);
        }
        .stat-number {
            font-size: 24px;
            font-weight: 700;
            margin-bottom: 4px;
        }
        .stat-label {
            font-size: 12px;
            color: var(--gray);
        }
        /* 企业介绍 */
        .about-section {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
            margin-bottom: 80px;
        }
        .section-badge {
            font-size: 12px;
            color: var(--gray);
            margin-bottom: 8px;
        }
        .about-content h2 {
            font-size: 24px;
            margin-bottom: 16px;
        }
        .about-content p {
            font-size: 14px;
            color: var(--gray);
            margin-bottom: 12px;
        }
        .about-features {
            display: flex;
            gap: 16px;
            margin-top: 20px;
            flex-wrap: wrap;
        }
        .feature-tag {
            display: flex;
            align-items: center;
            gap: 4px;
            font-size: 12px;
            color: var(--gray);
        }
        .feature-tag::before {
            content: "✅";
            font-size: 12px;
        }
        .about-image {
            position: relative;
        }
        .about-image img {
            width: 100%;
            border-radius: 8px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.15);
            transition: transform 0.5s ease;
        }
        .about-image:hover img {
            transform: scale(1.02);
        }
        .image-caption {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: white;
            padding: 12px;
            border-radius: 6px;
            font-size: 12px;
            max-width: 200px;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }
        /* 时间轴 */
        .timeline-section {
            margin-bottom: 80px;
        }
        .section-title {
            text-align: center;
            margin-bottom: 40px;
        }
        .section-title h2 {
            font-size: 24px;
            margin-bottom: 8px;
        }
        .section-title p {
            font-size: 14px;
            color: var(--gray);
        }
        .timeline {
            max-width: 800px;
            margin: 0 auto;
            position: relative;
        }
        .timeline::before {
            content: "";
            position: absolute;
            left: 100px;
            top: 0;
            bottom: 0;
            width: 2px;
            background: #e2e8f0;
        }
        .timeline-item {
            display: flex;
            gap: 30px;
            margin-bottom: 30px;
            position: relative;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }
        .timeline-item.active {
            opacity: 1;
            transform: translateY(0);
        }
        .timeline-year {
            min-width: 80px;
            text-align: right;
            padding-top: 12px;
            font-weight: 700;
            color: var(--secondary);
            position: relative;
        }
        .timeline-year::after {
            content: "";
            position: absolute;
            right: -36px;
            top: 16px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: var(--secondary);
            border: 3px solid white;
            box-shadow: 0 0 0 2px var(--secondary);
        }
        .timeline-content {
            background: white;
            padding: 16px 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.06);
            flex: 1;
        }
        .timeline-content h3 {
            font-size: 16px;
            margin-bottom: 4px;
        }
        .timeline-content p {
            font-size: 13px;
            color: var(--gray);
        }
        /* 核心实力 */
        .features-section {
            margin-bottom: 80px;
        }
        .features-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .feature-card {
            background: white;
            padding: 28px 20px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.06);
            transition: all 0.3s ease;
            opacity: 0;
            transform: translateY(20px);
        }
        .feature-card.active {
            opacity: 1;
            transform: translateY(0);
        }
        .feature-card:hover {
            transform: translateY(-6px);
            box-shadow: 0 10px 25px rgba(0,0,0,0.1);
        }
        .feature-icon {
            width: 40px;
            height: 40px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 16px;
            color: white;
            font-size: 18px;
        }
        .feature-card:nth-child(1) .feature-icon { background: #3b82f6; }
        .feature-card:nth-child(2) .feature-icon { background: #10b981; }
        .feature-card:nth-child(3) .feature-icon { background: #8b5cf6; }
        .feature-card:nth-child(4) .feature-icon { background: #f59e0b; }
        .feature-card h3 {
            font-size: 16px;
            margin-bottom: 8px;
        }
        .feature-card p {
            font-size: 13px;
            color: var(--gray);
        }
        /* 合作伙伴 */
        .partners-section {
            margin-bottom: 80px;
        }
        .partners-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
            gap: 16px;
        }
        .partner-tag {
            background: white;
            padding: 16px;
            text-align: center;
            border-radius: 6px;
            font-size: 13px;
            color: var(--gray);
            border: 1px solid #e2e8f0;
            transition: all 0.3s ease;
        }
        .partner-tag:hover {
            background: var(--secondary);
            color: white;
            border-color: var(--secondary);
            transform: translateY(-3px);
        }
        /* 联系我们 */
        .contact-section {
            margin-bottom: 80px;
        }
        .contact-card {
            max-width: 800px;
            margin: 0 auto;
            background: white;
            padding: 32px;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.08);
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }
        .contact-card.active {
            opacity: 1;
            transform: translateY(0);
        }
        .contact-info h3 {
            font-size: 20px;
            margin-bottom: 20px;
        }
        .contact-item {
            display: flex;
            gap: 10px;
            margin-bottom: 16px;
            font-size: 14px;
            color: var(--gray);
            align-items: center;
        }
        .contact-item svg {
            width: 18px;
            height: 18px;
            color: var(--secondary);
            flex-shrink: 0;
        }
        .contact-qrcode {
            text-align: center;
        }
        .qrcode-card {
            background: white;
            padding: 16px;
            border-radius: 8px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.08);
            display: inline-block;
        }
        .qrcode-card img {
            width: 160px;
            height: 160px;
            margin-bottom: 8px;
        }
        .qrcode-card p {
            font-size: 13px;
            color: var(--gray);
        }
        /* 页脚 */
        footer {
            background: var(--primary);
            color: white;
            padding: 24px 0;
            text-align: center;
            font-size: 12px;
        }
        .footer-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 12px;
            opacity: 0.8;
        }
        .footer-links a {
            color: white;
            text-decoration: none;
        }
        .copyright {
            opacity: 0.6;
        }
        /* 动画类 */
        .fade-in {
            opacity: 0;
            transform: translateY(20px);
            transition: all 0.6s ease;
        }
        .fade-in.active {
            opacity: 1;
            transform: translateY(0);
        }
        /* 响应式 */
        @media (max-width: 768px) {
            /* 导航栏移动端 */
            .navbar{
            	padding-top:10px ;
            	padding-bottom: 10px;
            }
            .logo{
            	font-size: 18px;
            }
            .pc-nav {
                display: none;
            }
            .hamburger {
                display: block;
            }
            .hero {
                padding: 60px 0 100px;
            }
            .about-section {
                grid-template-columns: 1fr;
            }
            .timeline::before {
                left: 20px;
            }
            .timeline-item {
                flex-direction: column;
                gap: 12px;
                padding-left: 50px;
            }
            .timeline-year {
                text-align: left;
                padding-top: 0;
            }
            .timeline-year::after {
                left: -44px;
                right: auto;
            }
            .contact-card {
                grid-template-columns: 1fr;
                gap: 30px;
            }
        }