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

body {
    font-family: 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

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

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo h1 {
    color: #fff;
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: #fff;
    text-decoration: none;
    font-size: 1rem;
    transition: color 0.3s;
}

.nav-menu a:hover {
    color: #ffd700;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: #fff;
    margin: 3px 0;
    transition: 0.3s;
}

/* 主页横幅 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 150px 0 100px;
    text-align: center;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInDown 1s;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    animation: fadeInUp 1s;
}

.btn {
    display: inline-block;
    padding: 12px 36px;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1.2s;
}

.btn-primary {
    background: #ffd700;
    color: #764ba2;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(255, 215, 0, 0.3);
}

/* 通用区块样式 */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #764ba2;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 3px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 10px auto;
}

/* 关于我们 */
.about {
    background: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
    color: #555;
}

.about-info {
    display: grid;
    gap: 2rem;
}

.info-item {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 2rem;
    border-radius: 10px;
    color: #fff;
    text-align: center;
    transition: transform 0.3s;
}

.info-item:hover {
    transform: translateY(-5px);
}

.info-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.info-item p {
    font-size: 1.1rem;
    font-weight: bold;
}

/* 业务服务 */
.services {
    background: #f9f9f9;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    background: #fff;
    padding: 3rem 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.service-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: #764ba2;
}

.service-card p {
    color: #666;
    line-height: 1.8;
}

/* 联系我们 */
.contact {
    background: #fff;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info {
    display: grid;
    gap: 2rem;
}

.contact-item {
    background: #f9f9f9;
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid #764ba2;
}

.contact-item h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #764ba2;
}

.contact-item p {
    color: #555;
    font-size: 1.1rem;
}

.contact-link {
    color: #764ba2;
    text-decoration: none;
    transition: color 0.3s;
}

.contact-link:hover {
    color: #667eea;
    text-decoration: underline;
}

.contact-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 3rem;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.18);
}

.contact-note {
    flex: 1;
}

.contact-note h3 {
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.contact-note p {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    line-height: 1.8;
}

.contact-note p:last-child {
    margin-bottom: 0;
}

.contact-qr {
    display: block;
    width: min(220px, 42%);
    height: auto;
    border-radius: 10px;
    background: #fff;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.18);
}

/* 页脚 */
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 2rem 0;
}

footer p {
    margin-bottom: 0.5rem;
}

.footer-link {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-link:hover {
    color: #fff;
    text-decoration: underline;
}

/* 备案信息 */
.beian-info {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.9rem;
    color: #999;
}

.beian-info a {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}

.beian-info a:hover {
    color: #fff;
    text-decoration: underline;
}

.gongan-beian {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
}

.gongan-icon {
    width: 16px;
    height: 16px;
    vertical-align: middle;
}

.beian-separator {
    color: #666;
}

@media (max-width: 768px) {
    .beian-info {
        flex-direction: column;
        gap: 0.3rem;
    }
    .beian-separator {
        display: none;
    }
}

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: center;
        padding: 1rem 0;
    }

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

    .hamburger {
        display: flex;
        position: absolute;
        right: 20px;
        top: 20px;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    .hero-content p {
        font-size: 1rem;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .contact-card {
        justify-content: center;
    }

    .contact-qr {
        width: min(240px, 45%);
    }

    .section-title {
        font-size: 2rem;
    }

    .services-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 1.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .service-card,
    .info-item,
    .contact-item {
        padding: 1.5rem;
    }

    .contact-card {
        flex-direction: column;
        padding: 1.5rem;
        text-align: center;
    }

    .contact-qr {
        width: min(100%, 280px);
    }
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 选中文本样式 */
::selection {
    background: #764ba2;
    color: #fff;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}