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

:root {
    --primary: #2563eb;
    --secondary: #7c3aed;
    --accent: #0ea5e9;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #94a3b8;
    --success: #10b981;
    --card-bg: rgba(255, 255, 255, 0.08);
}

body {
    background: linear-gradient(135deg, #0f172a, #1e293b);
    color: var(--light);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    line-height: 1.6;
}

/* 动态背景 */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.15;
    background: 
        radial-gradient(circle at 10% 20%, var(--accent), transparent 25%),
        radial-gradient(circle at 90% 80%, var(--secondary), transparent 25%),
        radial-gradient(circle at 50% 50%, var(--primary), transparent 35%);
}

/* 布局容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 头部导航 */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    background: rgba(30, 41, 59, 0.8);
    border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

nav a {
    color: var(--light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    padding: 0.5rem 0;
    transition: all 0.3s ease;
}

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

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

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

.nav-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--light);
    border: 1px solid var(--accent);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

/* 英雄区域 */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 6rem 0;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    background: linear-gradient(90deg, var(--light), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 2rem;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.hero-image {
    position: relative;
    perspective: 1000px;
}

.image-container {
    position: relative;
    width: 100%;
    height: 400px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform: rotate3d(1, 1, 0, 10deg);
    transition: transform 0.5s ease;
}

.image-container:hover {
    transform: rotate3d(1, 1, 0, 5deg);
}

.code-editor {
    position: absolute;
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    background: rgba(15, 23, 42, 0.9);
    border-radius: 10px;
    padding: 1.5rem;
    font-family: 'Courier New', monospace;
    color: var(--light);
    overflow: hidden;
}

.editor-header {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.editor-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.editor-content {
    font-size: 0.9rem;
    line-height: 1.8;
}

.editor-content .keyword { color: #0ea5e9; }
.editor-content .function { color: #8b5cf6; }
.editor-content .comment { color: #64748b; }
.editor-content .string { color: #10b981; }
.editor-content .var { color: #f59e0b; }

/* 技能部分 */
.section {
    padding: 5rem 0;
}

.section-title {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, var(--accent), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.section-title p {
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

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

.skill-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(148, 163, 184, 0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.skill-card:hover {
    transform: translateY(-10px);
    border-color: rgba(37, 99, 235, 0.3);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.skill-card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 1.5rem;
}

.skill-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* 项目部分 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid rgba(148, 163, 184, 0.1);
    cursor: pointer;
    position: relative;
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    border-color: rgba(37, 99, 235, 0.3);
}

.project-image {
    height: 200px;
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    position: relative;
    overflow: hidden;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.7), rgba(124, 58, 237, 0.7));
}

.project-content {
    padding: 1.5rem;
}

.project-content h3 {
    font-size: 1.4rem;
    margin-bottom: 0.5rem;
}

.project-content p {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.project-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: rgba(37, 99, 235, 0.2);
    color: var(--accent);
    padding: 0.3rem 0.8rem;
    border-radius: 50px;
    font-size: 0.85rem;
}

/* 联系部分 */
.contact-section {
    background: rgba(15, 23, 42, 0.7);
    border-radius: 20px;
    padding: 3rem;
    margin: 3rem 0;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(148, 163, 184, 0.1);
}

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

.contact-info h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.contact-info p {
    color: var(--gray);
    margin-bottom: 2rem;
}

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

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

.contact-item i {
    width: 50px;
    height: 50px;
    background: rgba(37, 99, 235, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent);
}

.contact-form .form-group {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 10px;
    color: var(--light);
    font-size: 1rem;
}

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

/* 页脚 */
footer {
    text-align: center;
    padding: 3rem 0;
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    margin-top: 4rem;
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
    font-size: 1.3rem;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-5px);
}

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

/* 动画效果 */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-15px); }
    100% { transform: translateY(0px); }
}

.floating {
    animation: float 6s ease-in-out infinite;
}

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

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content p {
        margin: 0 auto 2rem;
    }

    .hero-buttons {
        justify-content: center;
    }

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

@media (max-width: 768px) {
    nav ul {
        display: none;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }

    .section-title h2 {
        font-size: 2rem;
    }
}