* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary: #0f1621;
    --secondary: #1c2333;
    --accent: #00d9ff;
    --accent-dark: #0099cc;
    --text: #ffffff;
    --text-secondary: #a0aec0;
}

body {
    background-color: var(--primary);
    color: var(--text);
    overflow-x: hidden;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    z-index: 1000;
    background: rgba(15, 22, 33, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: var(--accent);
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 英雄区域样式 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    z-index: 10;
    max-width: 800px;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #ffffff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    animation: fadeInUp 1s ease-out 0.3s both;
}

.cta-button {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    transition: transform 0.3s, box-shadow 0.3s;
    animation: fadeInUp 1s ease-out 0.6s both;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 217, 255, 0.3);
}

/* 3D场景容器 */
#three-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* 关于区域样式 */
.about {
    padding: 8rem 5%;
    background: var(--secondary);
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--accent);
}

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

.about-text h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.about-text p {
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2rem;
}

.skill {
    background: rgba(255, 255, 255, 0.1);
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-size: 0.9rem;
    transition: background 0.3s;
}

.skill:hover {
    background: rgba(0, 217, 255, 0.2);
}

.about-visual {
    position: relative;
    height: 400px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.3);
}

/* 作品集样式 */
.portfolio {
    padding: 8rem 5%;
}

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

.portfolio-item {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    height: 300px;
    background: var(--secondary);
    transition: transform 0.3s, box-shadow 0.3s;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.5rem;
    background: linear-gradient(to top, rgba(15, 22, 33, 0.9), transparent);
    transform: translateY(20px);
    opacity: 0;
    transition: all 0.3s;
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
    opacity: 1;
}

/* 联系方式样式 */
.contact {
    padding: 8rem 5%;
    background: var(--secondary);
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    color: var(--text);
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.submit-btn {
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    color: var(--primary);
    border: none;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.submit-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 217, 255, 0.3);
}

/* 页脚样式 */
footer {
    padding: 3rem 5%;
    text-align: center;
    background: var(--primary);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 备案号样式 */
.record-number {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    text-align: center;
}

.record-number a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.record-number a:hover {
    color: var(--accent);
}
.beian-icon {
    vertical-align: middle; /* 使图标与文字垂直居中对齐 */
    margin-right: 5px; /* 在图标和编号之间添加一点间距 */
    width: 16px; /* 建议宽度 */
    height: 17px; /* 建议高度 */
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text);
    text-decoration: none;
    transition: background 0.3s, transform 0.3s;
}

.social-link:hover {
    background: var(--accent);
    transform: translateY(-5px);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem 5%;
    }

    .nav-links {
        display: none;
    }

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

    .hero p {
        font-size: 1.2rem;
    }

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

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