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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* 导航栏样式 */
.navbar {
    background-color: #fff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-size: 24px;
    font-weight: bold;
    color: #1890ff;
}

.nav-links {
    display: flex;
    list-style: none;
}

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

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

.nav-links a:hover {
    color: #1890ff;
}

/* Hero区域样式 */
.hero {
    background: linear-gradient(135deg, #1890ff 0%, #36cfc9 100%);
    color: white;
    padding: 160px 0 80px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background-color: #fff;
    color: #1890ff;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: transform 0.3s, box-shadow 0.3s;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

/* 服务介绍样式 */
.services {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.services h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
}

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

.service-card {
    background: white;
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

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

.service-card i {
    font-size: 40px;
    color: #1890ff;
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

/* 案例展示样式 */
.cases {
    padding: 80px 0;
    background-color: #fff;
}

.cases h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 36px;
}

.case-filter {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 10px 25px;
    border: 2px solid #1890ff;
    background: none;
    color: #1890ff;
    border-radius: 25px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.3s;
}

.filter-btn:hover,
.filter-btn.active {
    background-color: #1890ff;
    color: white;
}

.case-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    padding: 20px 0;
}

.case-card {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

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

.case-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/9;
}

.case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.case-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 20px;
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.case-card:hover .case-overlay {
    transform: translateY(0);
}

.case-card:hover .case-image img {
    transform: scale(1.1);
}

.case-overlay h3 {
    font-size: 20px;
    margin-bottom: 10px;
}

.case-overlay p {
    font-size: 14px;
    opacity: 0.9;
}

/* 关于我们样式 */
.about {
    padding: 80px 0;
}

.about h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
}

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

.about-text p {
    margin-bottom: 30px;
    font-size: 18px;
    line-height: 1.8;
}

.about-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.about-features li {
    display: flex;
    align-items: center;
    font-size: 16px;
}

.about-features i {
    color: #1890ff;
    margin-right: 10px;
}

/* 联系我们样式 */
.contact {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.contact h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 36px;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

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

.contact-item {
    display: flex;
    align-items: center;
    font-size: 18px;
}

.contact-item i {
    font-size: 24px;
    color: #1890ff;
    margin-right: 15px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

.contact-form textarea {
    height: 150px;
    resize: vertical;
}

.submit-button {
    background-color: #1890ff;
    color: white;
    padding: 15px;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.3s;
}

.submit-button:hover {
    background-color: #096dd9;
}

/* 页脚样式 */
.footer {
    background-color: #001529;
    color: white;
    padding: 20px 0;
    text-align: center;
}

/* 浮动咨询按钮样式 */
.float-contact {
    position: fixed;
    right: 30px;
    bottom: 30px;
    z-index: 1000;
    cursor: pointer;
}

.contact-bubble {
    display: flex;
    align-items: center;
    background: #1890ff;
    color: white;
    padding: 15px 25px;
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(24, 144, 255, 0.3);
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.contact-bubble i {
    font-size: 24px;
    margin-right: 8px;
}

.contact-text {
    font-size: 16px;
    font-weight: 500;
}

.contact-tooltip {
    position: absolute;
    bottom: calc(100% + 15px);
    right: 0;
    background: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    font-size: 14px;
    white-space: nowrap;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    pointer-events: none;
}

.tooltip-arrow {
    position: absolute;
    bottom: -8px;
    right: 20px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid white;
}

/* 悬停效果 */
.float-contact:hover .contact-bubble {
    transform: translateY(-5px);
    box-shadow: 0 6px 16px rgba(24, 144, 255, 0.4);
    background: #096dd9;
}

.float-contact:hover .contact-tooltip {
    opacity: 1;
    transform: translateY(0);
}

/* 点击效果 */
.float-contact:active .contact-bubble {
    transform: scale(0.95);
}

/* 浮动动画 */
@keyframes float {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
    100% {
        transform: translateY(0);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        height: auto;
        padding: 20px;
    }

    .nav-links {
        margin-top: 20px;
    }

    .nav-links li {
        margin: 0 15px;
    }

    .hero {
        padding: 120px 0 60px;
    }

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

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

    .case-filter {
        flex-wrap: wrap;
        gap: 10px;
    }

    .filter-btn {
        padding: 8px 20px;
        font-size: 14px;
    }

    .float-contact {
        right: 20px;
        bottom: 20px;
    }

    .contact-bubble {
        padding: 12px 20px;
    }

    .contact-bubble i {
        font-size: 20px;
    }

    .contact-text {
        font-size: 14px;
    }
}

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

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

    .about-features {
        grid-template-columns: 1fr;
    }
}