/* 科技感个人网站样式 */
:root {
    --primary: #00d4ff;
    --primary-dark: #0099cc;
    --secondary: #7b2cbf;
    --accent: #00ff88;
    --dark: #0a0a0f;
    --dark-light: #12121a;
    --dark-lighter: #1a1a25;
    --text: #e0e0e0;
    --text-muted: #888899;
    --glow: rgba(0, 212, 255, 0.3);
    --glow-purple: rgba(123, 44, 191, 0.3);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    background: var(--dark);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景动画 */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

#bgCanvas {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0a0f 0%, #0f0f1a 50%, #0a0a0f 100%);
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary);
}

.logo-icon {
    font-size: 1.8rem;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.05); }
}

.logo-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transition: width 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s;
}

/* 首页 */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem 2rem;
    position: relative;
}

.hero-content {
    max-width: 900px;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--primary);
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.title-line {
    display: block;
}

.title-line.highlight {
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 3s ease infinite;
    background-size: 200% 200%;
}

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

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: var(--dark);
    border: none;
    box-shadow: 0 5px 30px rgba(0, 212, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.6);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-outline:hover {
    background: rgba(0, 212, 255, 0.1);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    animation: fadeIn 1s ease 1s both;
}

.mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--primary);
    border-radius: 20px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
}

@keyframes scroll {
    0% { opacity: 1; top: 8px; }
    100% { opacity: 0; top: 20px; }
}

.scroll-indicator span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* 通用样式 */
.section {
    padding: 6rem 2rem;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

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

.section-tag {
    display: inline-block;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    color: var(--primary);
    letter-spacing: 3px;
    margin-bottom: 1rem;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.title-decoration {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.title-decoration span {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary));
}

.title-decoration span:last-child {
    background: linear-gradient(90deg, var(--primary), transparent);
}

.title-decoration i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* 关于我 */
.about-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.about-card {
    background: var(--dark-lighter);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.about-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--glow) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
}

.about-card:hover .card-glow {
    opacity: 0.1;
}

.about-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: white;
    margin-bottom: 1.5rem;
}

.about-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary);
}

.about-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

.skills-section {
    background: var(--dark-lighter);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    padding: 2.5rem;
}

.skills-title {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
}

.skill-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 18px;
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 10px;
    transition: all 0.3s;
}

.skill-item:hover {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--primary);
    transform: translateX(5px);
}

.skill-icon {
    color: var(--primary);
    font-size: 1.2rem;
}

.skill-item span {
    font-size: 0.9rem;
    color: var(--text);
}

/* 技术文章 */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.article-card {
    background: var(--dark-lighter);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    transition: all 0.3s ease;
}

.article-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 212, 255, 0.2);
}

.article-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.article-card:hover .article-glow {
    transform: scaleX(1);
}

.article-image {
    height: 180px;
    background: linear-gradient(135deg, var(--dark-light), var(--dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: var(--primary);
    opacity: 0.5;
}

.article-content {
    padding: 1.5rem;
}

.article-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.15);
    color: var(--primary);
    font-size: 0.8rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.article-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

.article-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
    transition: gap 0.3s;
}

.read-more:hover {
    gap: 12px;
}

/* 项目经验 */
.timeline {
    position: relative;
    padding-left: 40px;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 15px;
    top: 0;
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary), var(--secondary));
}

.timeline-item {
    position: relative;
    padding-bottom: 3rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -32px;
    top: 0;
    width: 16px;
    height: 16px;
    background: var(--dark);
    border: 3px solid var(--primary);
    border-radius: 50%;
    z-index: 1;
    transition: all 0.3s;
}

.timeline-item:hover .timeline-marker {
    background: var(--primary);
    box-shadow: 0 0 20px var(--glow);
}

.timeline-content {
    background: var(--dark-lighter);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    transition: all 0.3s;
}

.timeline-item:hover .timeline-content {
    border-color: var(--primary);
    transform: translateX(10px);
    box-shadow: 0 10px 30px rgba(0, 212, 255, 0.15);
}

.project-year {
    display: inline-block;
    padding: 4px 15px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-family: 'Orbitron', sans-serif;
    font-size: 0.85rem;
    border-radius: 20px;
    margin-bottom: 1rem;
}

.timeline-content h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.project-role {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.project-tags span {
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.1);
    color: var(--primary);
    font-size: 0.8rem;
    border-radius: 15px;
}

/* 联系方式 */
.contact-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--dark-lighter);
    border: 1px solid rgba(0, 212, 255, 0.1);
    border-radius: 15px;
    transition: all 0.3s;
}

.contact-item:hover {
    border-color: var(--primary);
    transform: translateY(-5px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: white;
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 1rem;
    margin-bottom: 0.3rem;
    color: var(--primary);
}

.contact-details p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.contact-social {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.contact-social h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    width: 60px;
    height: 60px;
    background: var(--dark-lighter);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--text);
    text-decoration: none;
    transition: all 0.3s;
}

.social-link:hover {
    background: var(--primary);
    color: var(--dark);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px var(--glow);
}

/* 页脚 */
.footer {
    background: var(--dark-light);
    border-top: 1px solid rgba(0, 212, 255, 0.1);
    padding: 3rem 2rem 1.5rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-family: 'Orbitron', sans-serif;
    font-size: 1.3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}

.footer-desc {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

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

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--primary);
}

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
}

.footer-bottom .ICP a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.8rem;
}

.footer-bottom .ICP a:hover {
    color: var(--primary);
}

/* 动画 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        grid-template-columns: 1fr;
    }
    
    .timeline {
        padding-left: 30px;
    }
    
    .timeline::before {
        left: 10px;
    }
    
    .timeline-marker {
        left: -26px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}