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

body {
    font-family: '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-color: #fff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #333;
    text-decoration: none;
}

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

.nav-links li {
    margin-left: 20px;
}

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

.nav-links a:hover {
    color: #007bff;
}

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

/* 英雄区 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 150px 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.hero-content h1 span {
    color: #ffd700;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.social-links {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
    margin: 0 10px;
    transition: all 0.3s ease;
    text-decoration: none;
}

.social-link:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-5px);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: #007bff;
    color: #fff;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn:hover {
    background-color: #0069d9;
    transform: translateY(-2px);
}

/* 通用部分样式 */
.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: #333;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 100px;
    height: 4px;
    background-color: #007bff;
    margin: 20px auto;
    border-radius: 2px;
}

/* 关于我 */
.about {
    padding: 100px 0;
    background-color: #fff;
}

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

.about-image {
    flex: 1;
    min-width: 300px;
    margin-right: 50px;
}

.about-image img {
    width: 100%;
    border-radius: 50%;
    max-width: 300px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.about-text {
    flex: 2;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.8;
}

/* 语录 */
.skills {
    padding: 100px 0;
    background-color: #f5f5f5;
}

/* 项目 */
.projects {
    padding: 100px 0;
    background-color: #fff;
}

/* 联系我 */
.contact {
    padding: 100px 0;
    background-color: #f5f5f5;
}

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

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

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

.contact-item i {
    font-size: 1.5rem;
    color: #007bff;
    margin-right: 20px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.contact-form {
    flex: 2;
    min-width: 300px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #007bff;
}

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

/* 页脚 */
.footer {
    background-color: #333;
    color: #fff;
    padding: 50px 0;
    text-align: center;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

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

/* 备案信息样式 */
.beian-info {
    margin: 15px 0;
}

.beian-info a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    margin: 0 10px;
    font-size: 0.9rem;
}

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

/* 识别链接样式 */
.verify-links {
    margin: 15px 0;
}

.verify-links img {
    vertical-align: middle;
}

.footer .social-link {
    background-color: rgba(255, 255, 255, 0.1);
}

.footer .social-link:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background-color: #fff;
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        transition: transform 0.3s ease;
        opacity: 0;
        visibility: hidden;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

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

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .about-content {
        flex-direction: column;
        text-align: center;
    }

    .about-image {
        margin-right: 0;
        margin-bottom: 30px;
    }

    .contact-content {
        flex-direction: column;
    }
    
    .beian-info {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .beian-info a {
        margin: 5px 0;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 2rem;
    }

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

    .skills-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }
}