/* 全局样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei', Arial, sans-serif;
}

body {
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 头部导航样式 */
header {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #fff;
    text-decoration: none;
    transition: transform 0.3s;
}

.logo:hover {
    transform: scale(1.05);
}

.logo span {
    color: #4cc9f0;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 30px;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s, transform 0.3s;
    display: inline-block;
    padding: 5px 0;
    position: relative;
}

nav ul li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #4cc9f0;
    transition: width 0.3s;
}

nav ul li a:hover {
    color: #4cc9f0;
}

nav ul li a:hover::after {
    width: 100%;
}

/* 首页横幅样式 */
.hero {
    background: url('https://images.unsplash.com/photo-1542751371-adc38448a05e?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    color: white;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
    animation: fadeIn 1.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.hero p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.btn {
    display: inline-block;
    background: #4cc9f0;
    color: white;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    font-size: 16px;
    transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.btn:hover {
    background: #3a86ff;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* 通用部分样式 */
section {
    padding: 80px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
    animation: fadeIn 1s ease-out;
}

.section-title h2 {
    font-size: 36px;
    color: #1a1a2e;
    position: relative;
    padding-bottom: 15px;
    margin-bottom: 15px;
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: #4cc9f0;
}

.section-title p {
    color: #666;
    font-size: 18px;
}

/* 申请流程样式 */
.apply-process {
    background: #f8f9fa;
    padding: 80px 0;
}

.process-steps {
    display: flex;
    justify-content: space-around;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 30px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 40px;
    left: 50px;
    right: 50px;
    height: 2px;
    background: linear-gradient(90deg, #4cc9f0 0%, #3a86ff 100%);
    z-index: 0;
}

.step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
    z-index: 1;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

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

.step-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #4cc9f0, #3a86ff);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 15px;
    color: white;
    font-size: 24px;
    font-weight: bold;
    position: relative;
    transition: transform 0.3s ease;
}

.step:hover .step-icon {
    transform: scale(1.1);
}

.step h3 {
    color: #1a1a2e;
    margin-bottom: 10px;
    font-size: 20px;
}

.step p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
}

/* 页脚链接样式 */
.footer-links ul li a {
    color: #fff;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding-left: 15px;
}

.footer-links ul li a::before {
    content: '→';
    position: absolute;
    left: 0;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.footer-links ul li a:hover {
    color: #4cc9f0;
    padding-left: 20px;
}

.footer-links ul li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

/* 服务部分样式 */
.services {
    background-color: white;
}

.service-items {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
}

.service-item {
    flex: 1 1 300px;
    max-width: 350px;
    background: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

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

.service-icon {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
    font-size: 36px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-content {
    padding: 30px;
}

.service-content h3 {
    font-size: 22px;
    margin-bottom: 15px;
    color: #1a1a2e;
}

.service-content p {
    color: #666;
    margin-bottom: 20px;
    min-height: 80px;
}

/* 产品展示部分样式 */
.products {
    background-color: #f9f9f9;
}

.product-showcase {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    align-items: center;
}

.product-image {
    flex: 1 1 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.product-image:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.product-image img {
    width: 100%;
    height: auto;
    display: block;
}

.product-details {
    flex: 1 1 400px;
}

.product-details h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #1a1a2e;
}

.feature-list {
    list-style: none;
    margin-bottom: 30px;
}

.feature-list li {
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
}

.feature-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #4cc9f0;
    font-weight: bold;
}

/* 关于我们部分样式 */
.about {
    background-color: white;
}

.about-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
    align-items: center;
}

.about-text {
    flex: 1 1 500px;
}

.about-text h3 {
    font-size: 28px;
    margin-bottom: 20px;
    color: #1a1a2e;
}

.about-text p {
    margin-bottom: 20px;
    color: #666;
}

.about-image {
    flex: 1 1 400px;
}

.about-image img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.about-image img:hover {
    transform: scale(1.02);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* 联系我们部分样式 */
.contact {
    background: linear-gradient(135deg, #1a1a2e, #16213e);
    color: white;
}

.contact .section-title h2 {
    color: white;
}

.contact-content {
    display: flex;
    flex-wrap: wrap;
    gap: 50px;
}

.contact-info {
    flex: 1 1 300px;
}

.contact-info h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.contact-details {
    list-style: none;
}

.contact-details li {
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
}

.contact-details .icon {
    margin-right: 15px;
    font-size: 20px;
    color: #4cc9f0;
}

.contact-form {
    flex: 1 1 500px;
}

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

.form-control {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    font-size: 16px;
    transition: background 0.3s, box-shadow 0.3s;
}

.form-control:focus {
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 0 0 2px rgba(76, 201, 240, 0.5);
    outline: none;
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.7);
}

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

.submit-btn {
    background: #4cc9f0;
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 50px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.submit-btn:hover {
    background: #3a86ff;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

/* 页脚样式 */
footer {
    background: #0f0f1a;
    color: white;
    padding: 30px 0;
    text-align: center;
}

.footer-content p {
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    justify-content: center;
    list-style: none;
    margin-bottom: 20px;
}

.social-links li {
    margin: 0 10px;
}

.social-links a {
    color: white;
    font-size: 20px;
    transition: color 0.3s, transform 0.3s;
    display: inline-block;
}

.social-links a:hover {
    color: #4cc9f0;
    transform: translateY(-3px);
}

.copyright {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.beian {
    font-size: 14px;
    margin-top: 10px;
    color: rgba(255, 255, 255, 0.7);
}

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

.beian a:hover {
    color: #4cc9f0;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    nav ul {
        margin-top: 20px;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 10px;
    }
    
    .hero h1 {
        font-size: 36px;
    }
    
    .hero p {
        font-size: 18px;
    }
    
    .section-title h2 {
        font-size: 30px;
    }
    
    .service-item {
        flex: 1 1 100%;
        max-width: 100%;
    }
    
    .service-content p {
        min-height: auto;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 28px;
    }
    
    .hero p {
        font-size: 16px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
    
    .section-title h2 {
        font-size: 24px;
    }
    
    .service-content h3 {
        font-size: 20px;
    }
    
    .contact-details .icon {
        font-size: 18px;
    }
    
    .form-control, .submit-btn {
        padding: 12px;
    }
}