/* 全局样式 - 现代化科技感设计 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #58DFE8;
    --secondary-color: #3BC6D0;
    --accent-color: #1FB8C2;
    --dark-color: #333;
    --light-color: #f9f9f9;
    --text-color: #333;
    --text-light: #666;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 - 美团风格 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    padding: 20px 0;
}

.logo a {
    text-decoration: none;
    color: var(--primary-color);
    display: inline-block;
}

.nav-menu {
    list-style: none;
    display: flex;
    justify-content: flex-end;
    margin-top: -50px;
}

.nav-menu li {
    margin-left: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-color);
    font-size: 16px;
    transition: color 0.3s ease;
    display: inline-block;
    padding: 5px 0;
}

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

/* Banner样式 - 美团风格 */
.banner {
    background-color: #fff;
    padding: 100px 0 80px;
    text-align: center;
    margin-top: 70px;
    position: relative;
}

.banner-content {
    max-width: 800px;
    margin: 0 auto;
}

.banner h1 {
    font-size: 36px;
    margin-bottom: 15px;
    color: var(--dark-color);
    line-height: 1.2;
    font-weight: bold;
}

.banner h1 span {
    color: var(--primary-color);
}

.banner p {
    font-size: 18px;
    margin-bottom: 30px;
    color: var(--text-light);
    font-weight: 500;
}

.banner-features {
    margin-bottom: 30px;
}

.banner-features p {
    font-size: 14px;
    margin-bottom: 10px;
    color: var(--text-light);
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--primary-color);
    color: var(--dark-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    font-size: 16px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.banner-image {
    flex: 1;
    min-width: 300px;
    text-align: right;
}

.banner-image img {
    max-width: 100%;
    height: auto;
}

/* 通用section样式 - 美团风格 */
section {
    padding: 80px 0;
    position: relative;
}

section h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 32px;
    color: var(--dark-color);
    line-height: 1.2;
    font-weight: bold;
    position: relative;
}

section h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
}

/* 公司简介样式 - 美团风格 */
.about {
    background-color: #f9f9f9;
}

.about-content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.about-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background-color: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.about-text p {
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
}

/* 业务优势样式 - 美团风格 */
.advantages {
    background-color: #fff;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.advantage-item {
    background-color: #f9f9f9;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-align: center;
    transition: all 0.3s ease;
    border-top: 3px solid var(--primary-color);
}

.advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.advantage-icon {
    font-size: 24px;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.advantage-item h3 {
    margin-bottom: 15px;
    font-size: 20px;
    color: var(--dark-color);
}

.advantage-item p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 产品展示样式 - 美团风格 */
.products {
    background-color: #f9f9f9;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.product-item {
    background-color: #fff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.product-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}



.product-item h3 {
    padding: 20px;
    font-size: 20px;
    color: var(--dark-color);
    font-weight: bold;
}

.product-item p {
    padding: 0 20px 20px;
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 招商合作样式 - 美团风格 */
.cooperation {
    background-color: #fff;
}

.cooperation-content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.cooperation-text {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background-color: #f9f9f9;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.cooperation-text h3 {
    margin-bottom: 15px;
    font-size: 20px;
    color: var(--primary-color);
    font-weight: bold;
}

.cooperation-text p {
    margin-bottom: 30px;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-color);
}

/* 联系方式样式 - 美团风格 */
.contact {
    background-color: #f9f9f9;
}

.contact-content {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
}

.contact-info {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
    padding: 40px;
    background-color: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.contact-info p {
    margin-bottom: 15px;
    font-size: 16px;
    color: var(--text-color);
}

.contact-info p strong {
    color: var(--primary-color);
    font-weight: bold;
}

/* 页脚样式 - 美团风格 */
footer {
    background-color: #fff;
    color: var(--text-light);
    padding: 30px 0;
    text-align: center;
    border-top: 1px solid #e0e0e0;
}

footer p {
    font-size: 14px;
    margin-bottom: 5px;
}

/* 响应式设计 - 美团风格 */
@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        align-items: center;
        margin-top: 20px;
    }

    .nav-menu li {
        margin: 10px 0;
    }

    .banner {
        padding: 80px 0 60px;
    }

    .banner .container {
        flex-direction: column;
        text-align: center;
    }

    .banner-content {
        padding-right: 0;
        margin-bottom: 30px;
    }

    .banner h1 {
        font-size: 28px;
    }

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

    section {
        padding: 60px 0;
    }

    section h2 {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .advantages-grid,
    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .about-text,
    .cooperation-text,
    .contact-info {
        padding: 30px;
    }
}

@media (max-width: 480px) {
    .banner h1 {
        font-size: 24px;
    }

    .banner p {
        font-size: 14px;
    }

    section h2 {
        font-size: 20px;
    }

    .advantage-item {
        padding: 20px;
    }

    .product-item h3 {
        padding: 15px;
    }

    .product-item p {
        padding: 0 15px 15px;
    }

    .btn {
        padding: 10px 24px;
        font-size: 14px;
    }

    .about-text,
    .cooperation-text,
    .contact-info {
        padding: 20px;
    }
}

/* 加载动画 - 美团风格 */
@keyframes fadeIn {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* 确保图片加载优化 */
img {
    max-width: 100%;
    height: auto;
}

/* 触摸设备优化 */
@media (hover: none) {
    .advantage-item:hover,
    .product-item:hover {
        transform: none;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }
}

/* 选择文本样式 */
::selection {
    background: rgba(88, 223, 232, 0.3);
    color: var(--dark-color);
}

/* 焦点样式 */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}