/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}
li{
    list-style: none;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
}

.logo h1 {
    font-size: 24px;
    font-weight: 700;
    color: #3a1c71;
    margin-bottom: 2px;
}

.logo p {
    font-size: 12px;
    color: #777;
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.nav-links a:hover {
    color: #3a1c71;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #3a1c71;
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.mobile-menu {
    display: none;
    cursor: pointer;
}

.mobile-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: #333;
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #3a1c71 0%, #d76d77 50%, #ffaf7b 100%);
    height: 55vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><rect width="100" height="100" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="1"/></svg>');
    animation: moveBackground 20s linear infinite;
}

@keyframes moveBackground {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, 100px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding:80px 20px 0 20px;
}

.hero h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 20px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.btn-primary {
    display: inline-block;
    padding: 12px 30px;
    background-color: #fff;
    color: #3a1c71;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 1s ease-out 0.4s both;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

/* 通用部分样式 */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    font-size: 36px;
    font-weight: 700;
    color: #333;
    margin-bottom: 60px;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #3a1c71, #d76d77);
}

/* 公司简介 */
.about {
    background-color: #fff;
}

.about-content {
    display: flex;
    align-items: center;
    gap: 60px;
}

.about-text {
    flex: 1;
}

.about-text p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 20px;
    color: #555;
}

.about-image {
    flex: 1;
    overflow: hidden;
}

.about-image img {
    width: 100%;
    height: auto;
    transition: transform 0.3s ease;
}

.about-image:hover img {
    transform: scale(1.05);
}

/* 核心业务 */
.business {
    background-color: #f9f9f9;
}

.business-section {
    margin-bottom: 80px;
}

.business-title {
    font-size: 24px;
    font-weight: 600;
    color: #3a1c71;
    margin-bottom: 30px;
    position: relative;
    padding-left: 20px;
}

.business-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 10px;
    background-color: #3a1c71;
    border-radius: 50%;
}

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

.business-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

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

.card-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.business-card h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.business-card p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

/* 我们的优势 */
.advantages {
    background-color: #fff;
}

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

.advantage-card {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.advantage-card .card-icon {
    font-size: 56px;
    margin-bottom: 20px;
    color: #3a1c71;
}

.advantage-card h4 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #333;
}

.advantage-card p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

/* 业务数据 */
.data-section {
    background: linear-gradient(135deg, #3a1c71 0%, #2b1354 100%);
    color: #fff;
}

.data-section .section-title {
    color: #fff;
}

.data-section .section-title::after {
    background: linear-gradient(90deg, #fff, #ffaf7b);
}

.data-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 60px;
    text-align: center;
}

.data-item {
    padding: 20px;
}

.data-number {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #ffaf7b;
}

.data-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
}

.chart-container {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 30px;
    backdrop-filter: blur(10px);
}

/* 联系我们 */
.contact {
    background-color: #f9f9f9;
}

.contact-content {
    display: flex;
    gap: 60px;
}

.contact-info {
    flex: 1;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 24px;
    color: #3a1c71;
    flex-shrink: 0;
    margin-top: 5px;
}

.contact-text h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: #333;
}

.contact-text p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

.contact-form {
    flex: 1;
    background-color: #fff;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 30px;
    color: #333;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3a1c71;
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 60px 0 30px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-logo h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 5px;
}

.footer-logo p {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.7);
}

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

.footer-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #ffaf7b;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: #fff;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
        flex-direction: column;
        gap: 15px;
    }

    .nav-links.active {
        display: flex;
    }

    .mobile-menu {
        display: block;
    }

    .hero h1 {
        font-size: 36px;
    }

    .hero p {
        font-size: 18px;
    }

    .about-content {
        flex-direction: column;
        gap: 30px;
    }

    .contact-content {
        flex-direction: column;
        gap: 30px;
    }

    .footer-content {
        flex-direction: column;
        gap: 30px;
        text-align: center;
    }

    .footer-links {
        justify-content: center;
    }

    .data-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .section-title {
        font-size: 28px;
    }

    .business-cards,
    .advantages-cards {
        grid-template-columns: 1fr;
    }

    .data-content {
        grid-template-columns: 1fr;
    }

    .contact-form {
        padding: 20px;
    }
}