:root {
    --primary-color: #6c63ff;
    --secondary-color: #2d2b55;
    --text-color: #333;
    --bg-color: #f8f9fa;
    --accent-color: #ff6584;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    overflow-x: hidden;
}

/* 自定义光标 */
.cursor {
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9999;
}

.cursor-follower {
    width: 60px;
    height: 60px;
    background: transparent;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    position: fixed;
    pointer-events: none;
    z-index: 9998;
    transition: all 0.3s ease;
}

/* 导航栏 */
header {
    position: fixed;
    width: 100%;
    padding: 20px;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo span {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

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

/* 英雄区域 */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(135deg, #0a0a1a 0%, #1a1a3a 50%, #0a0a1a 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        linear-gradient(45deg, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    animation: gradientShift 30s ease infinite;
    z-index: 1;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><rect fill="white" fill-opacity="0.1" width="1" height="1"/></svg>');
    opacity: 0.1;
    z-index: 1;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 0%;
    }
    50% {
        background-position: 100% 100%;
    }
    100% {
        background-position: 0% 0%;
    }
}

.hero-content {
    z-index: 2;
    position: relative;
    width: 100%;
    max-width: 1200px;
    padding: 0 20px;
}

.glitch {
    font-size: 4rem;
    font-weight: 700;
    text-transform: uppercase;
    position: relative;
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    letter-spacing: 0.2em;
    margin-bottom: 2rem;
}

.glitch span {
    position: relative;
    display: inline-block;
    animation: twinkle 3s ease-in-out infinite;
    animation-delay: calc(var(--i) * 0.2s);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: bottom center;
}

.glitch span:hover {
    transform: scale(1.3) translateY(-5px);
    color: white;
    text-shadow: 
        0 0 10px rgba(255, 255, 255, 0.8),
        0 0 20px rgba(255, 255, 255, 0.5);
    filter: blur(0.5px);
}

.glitch span::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background: white;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.glitch span:hover::after {
    transform: scaleX(1);
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.8;
    }
    50% {
        opacity: 1;
    }
}

.subtitle {
    font-size: 1.5rem;
    margin-top: 1rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards 0.5s;
    font-weight: 300;
    letter-spacing: 0.1em;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.tech-stack {
    margin-top: 3rem;
    font-size: 2rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 1s ease forwards 1s;
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.tech-stack i {
    position: relative;
    transition: all 0.3s ease;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.8);
}

.tech-stack i::before {
    content: '';
    position: absolute;
    top: -15px;
    left: -15px;
    right: -15px;
    bottom: -15px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: all 0.3s ease;
}

.tech-stack i:hover {
    transform: scale(1.2);
    color: white;
    text-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
}

.tech-stack i:hover::before {
    opacity: 1;
    transform: scale(1.5);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.2;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}

/* 关于我部分 */
.about {
    padding: 100px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.skill-item {
    margin-bottom: 1.5rem;
}

.skill-bar {
    height: 10px;
    background: #e0e0e0;
    border-radius: 5px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    background: var(--primary-color);
    border-radius: 5px;
    transition: width 1s ease-in-out;
}

/* 项目展示 */
.projects {
    padding: 100px 20px;
    background: #f0f0f0;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

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

.project-card:hover {
    transform: translateY(-10px);
}

.project-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.project-info {
    padding: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.project-tags span {
    background: var(--primary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

/* AI探索部分 */
.ai-section {
    padding: 100px 20px;
}

.ai-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.ai-card {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.ai-card:hover {
    transform: translateY(-10px);
}

.ai-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 联系部分 */
.contact {
    padding: 100px 20px;
    background: #f0f0f0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-family: inherit;
}

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

.contact-form button {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 5px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.contact-form button:hover {
    background: var(--secondary-color);
}

/* 页脚 */
footer {
    text-align: center;
    padding: 2rem;
    background: var(--secondary-color);
    color: white;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .about-content,
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tech-stack {
        font-size: 1.5rem;
    }
}