/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 科技风配色 - 浅色版 */
    --primary-color: #00a8ff;
    --primary-dark: #0097e6;
    --secondary-color: #9c88ff;
    --accent-color: #00d2d3;
    
    --text-dark: #2d3436;
    --text-light: #636e72;
    --text-muted: #b2bec3;
    
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --bg-card: rgba(255, 255, 255, 0.9);
    
    --border-color: #dfe6e9;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-glow: 0 0 30px rgba(0, 168, 255, 0.3);
    
    --gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-cyan: linear-gradient(135deg, #00d2d3 0%, #00a8ff 100%);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

/* 粒子画布 */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

/* 十字星光线光标效果 */
#cursor-h-line,
#cursor-v-line {
    transition: opacity 0.2s ease, background 0.2s ease;
}

#cursor-focus {
    pointer-events: none;
    transition: transform 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

/* 科技网格背景 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 168, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 168, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: -1;
}

/* 扫描线效果 */
body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 168, 255, 0.02) 2px,
        rgba(0, 168, 255, 0.02) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* 导航栏 - 玻璃态 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(0, 168, 255, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo a {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-decoration: none;
}

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

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

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

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

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

.nav-links a.active {
    color: var(--primary-color);
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* Hero 区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, #f5f7fa 0%, #e8f4f8 50%, #f0f4ff 100%);
    position: relative;
    padding-top: 70px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 80%, rgba(0, 168, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(156, 136, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

/* Hero 科技装饰 */
.hero-tech-decorations {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
}

.circuit-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(0, 168, 255, 0.3), transparent);
    animation: circuit-flow 3s ease-in-out infinite;
}

@keyframes circuit-flow {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.8; }
}

.tech-dots span {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.4;
    animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
    0%, 100% { transform: scale(1); opacity: 0.4; }
    50% { transform: scale(1.5); opacity: 0.8; }
}

.code-tag {
    font-family: 'Courier New', monospace;
    color: var(--primary-color);
    font-size: 0.9rem;
    opacity: 0.7;
    margin-bottom: 0.5rem;
    letter-spacing: 1px;
}

.tech-stack-mini {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.tech-stack-mini span {
    padding: 0.25rem 0.75rem;
    background: rgba(0, 168, 255, 0.1);
    border: 1px solid rgba(0, 168, 255, 0.3);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

.orbit-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 350px;
    border: 1px dashed rgba(0, 168, 255, 0.3);
    border-radius: 50%;
    animation: orbit-rotate 20s linear infinite;
}

.orbit-ring::before {
    content: '';
    position: absolute;
    top: 50%;
    left: -5px;
    width: 10px;
    height: 10px;
    background: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--primary-color);
}

@keyframes orbit-rotate {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: var(--text-dark);
}

.highlight {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 500;
    white-space: normal;
    overflow: visible;
}

.hero-description {
    font-size: 1.1rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    max-width: 500px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 2rem;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 168, 255, 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
}

.hero-image {
    display: flex;
    justify-content: center;
}

.avatar-placeholder {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 8rem;
    color: white;
    box-shadow: var(--shadow-lg), 0 0 60px rgba(0, 168, 255, 0.3);
    position: relative;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    color: var(--primary-color);
    font-size: 1.5rem;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

/* 通用区域样式 */
section {
    padding: 100px 0;
    position: relative;
}

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

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--gradient);
    border-radius: 2px;
}

/* 关于我 */
.about {
    background: var(--bg-white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.about-text p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.skills h3 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
    color: var(--text-dark);
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-dark);
    transition: all 0.3s ease;
    cursor: pointer;
}

.skill-tag:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.3);
    transform: translateY(-2px);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.stat-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-white);
    border-radius: 16px;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.stat-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.stat-item:hover::before {
    transform: scaleX(1);
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-light);
    font-size: 1rem;
}

/* 经历时间线 */
.experience {
    background: var(--bg-light);
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 100%;
    background: var(--gradient);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 50%;
    padding: 0 2rem;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-marker {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--bg-white);
    border: 3px solid var(--primary-color);
    border-radius: 50%;
    top: 0;
    box-shadow: 0 0 0 4px rgba(0, 168, 255, 0.2);
    transition: all 0.3s ease;
}

.timeline-item:hover .timeline-marker {
    background: var(--primary-color);
    box-shadow: 0 0 0 8px rgba(0, 168, 255, 0.2);
}

.timeline-item:nth-child(odd) .timeline-marker {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-marker {
    left: -10px;
}

.timeline-content {
    background: var(--bg-white);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.timeline-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: var(--gradient);
    transition: left 0.5s ease;
}

.timeline-content:hover::before {
    left: 100%;
}

.timeline-content:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.timeline-date {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: var(--gradient);
    color: white;
    border-radius: 50px;
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.timeline-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.timeline-content h4 {
    font-size: 1rem;
    color: var(--primary-color);
    margin-bottom: 0.75rem;
    font-weight: 500;
}

.timeline-content p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* 产品展示 */
.products {
    background: var(--bg-white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.product-card {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.product-card::after {
    content: '';
    position: absolute;
    top: 10px;
    right: 10px;
    width: 30px;
    height: 30px;
    border-top: 2px solid var(--primary-color);
    border-right: 2px solid var(--primary-color);
    opacity: 0;
    transition: all 0.3s ease;
}

.product-card:hover::after {
    opacity: 0.5;
    width: 40px;
    height: 40px;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-card:hover::before {
    transform: scaleX(1);
}

.product-image {
    height: 200px;
    overflow: hidden;
}

.product-placeholder {
    width: 100%;
    height: 100%;
    background: var(--gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: white;
}

.product-info {
    padding: 2rem;
}

.product-info h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.product-info p {
    color: var(--text-light);
    margin-bottom: 1rem;
}

.product-tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.product-tags span {
    padding: 0.25rem 0.75rem;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--primary-color);
}

.product-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: gap 0.3s ease;
}

.product-link:hover {
    gap: 1rem;
}

/* 简历区域 */
.resume {
    background: var(--bg-light);
}

.resume-content {
    max-width: 800px;
    margin: 0 auto;
}

.resume-card {
    background: var(--bg-white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.resume-header {
    background: var(--gradient);
    color: white;
    padding: 3rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.resume-avatar {
    width: 100px;
    height: 100px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
}

.resume-title h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.resume-title p {
    opacity: 0.9;
}

.resume-body {
    padding: 3rem;
}

.resume-section {
    margin-bottom: 2.5rem;
}

.resume-section:last-child {
    margin-bottom: 0;
}

.resume-section h4 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.resume-item {
    margin-bottom: 1.5rem;
    padding-left: 1rem;
    border-left: 3px solid var(--border-color);
    transition: all 0.3s ease;
}

.resume-item:hover {
    border-left-color: var(--primary-color);
}

.resume-date {
    font-size: 0.875rem;
    color: var(--text-light);
}

.resume-item h5 {
    font-size: 1.1rem;
    margin: 0.25rem 0;
    color: var(--text-dark);
}

.resume-item p {
    color: var(--text-light);
}

.resume-section ul {
    list-style: none;
    padding-left: 0;
}

.resume-section ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.resume-section ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.resume-footer {
    padding: 2rem 3rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

/* 联系方式 */
.contact {
    background: var(--bg-white);
}

.contact-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

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

.contact-item i {
    width: 60px;
    height: 60px;
    background: var(--gradient);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.3);
    transition: all 0.3s ease;
}

.contact-item:hover i {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 168, 255, 0.4);
}

.contact-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
}

.contact-item p {
    color: var(--text-light);
}

.contact-social h3 {
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    color: var(--text-dark);
}

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

.social-link {
    width: 50px;
    height: 50px;
    background: var(--bg-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.25rem;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.social-link:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: translateY(-5px);
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.3);
}

/* 页脚 */
.footer {
    background: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    opacity: 0.8;
}

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

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

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-image {
        order: -1;
    }

    .avatar-placeholder {
        width: 200px;
        height: 200px;
        font-size: 5rem;
    }

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

    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        width: 100%;
        left: 0 !important;
        padding-left: 60px;
        text-align: left !important;
    }

    .timeline-marker {
        left: 10px !important;
        right: auto !important;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(255, 255, 255, 0.98);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transition: left 0.3s ease;
    }

    .nav-links.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .hero-text h1 {
        font-size: 2rem;
    }

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

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

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

    .resume-header {
        flex-direction: column;
        text-align: center;
    }

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

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.75rem;
    }

    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }

    .resume-body {
        padding: 2rem;
    }
}

/* 微信二维码弹窗 */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-white);
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    max-width: 350px;
    width: 90%;
    position: relative;
    animation: slideIn 0.3s ease;
    box-shadow: var(--shadow-lg);
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    color: var(--text-light);
    cursor: pointer;
    transition: color 0.3s ease;
}

.close-btn:hover {
    color: var(--primary-color);
}

.modal-content h3 {
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    font-size: 1.25rem;
}

.qr-code {
    max-width: 400px;
    max-height: 400px;
    width: auto;
    height: auto;
    border-radius: 10px;
    margin-bottom: 1rem;
    object-fit: contain;
}

.modal-content p {
    color: var(--text-light);
    font-size: 0.9rem;
}

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

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

/* 科技装饰角 */
.tech-corner {
    position: relative;
}

.tech-corner::before,
.tech-corner::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-color: var(--primary-color);
    border-style: solid;
    opacity: 0.5;
    transition: all 0.3s ease;
}

.tech-corner::before {
    top: -1px;
    left: -1px;
    border-width: 2px 0 0 2px;
}

.tech-corner::after {
    bottom: -1px;
    right: -1px;
    border-width: 0 2px 2px 0;
}

.tech-corner:hover::before,
.tech-corner:hover::after {
    width: 30px;
    height: 30px;
    opacity: 1;
}

/* 发光边框效果 */
.glow-border {
    position: relative;
}

.glow-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient);
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
    filter: blur(8px);
}

.glow-border:hover::before {
    opacity: 0.5;
}

/* 二进制雨背景 (仅Hero区域) */
.binary-rain {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    pointer-events: none;
    opacity: 0.05;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    color: var(--primary-color);
}

/* 数据流动画 */
@keyframes dataFlow {
    0% { transform: translateX(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(100vw); opacity: 0; }
}

.data-packet {
    position: absolute;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: dataFlow 3s linear infinite;
}

/* 脉冲光圈 */
.pulse-ring {
    position: absolute;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    opacity: 0;
    animation: pulse-ring 2s ease-out infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.5); opacity: 0.8; }
    100% { transform: scale(2); opacity: 0; }
}

/* 简历预览卡片 */
.resume-preview {
    max-width: 500px;
    margin: 0 auto;
}

.resume-preview-card {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 3rem 2rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.resume-preview-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
}

.resume-preview-icon {
    width: 100px;
    height: 100px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 3rem;
    color: white;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.3);
}

.resume-preview-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-dark);
}

.resume-preview-card p {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

/* 导航栏 active 状态 */
.nav-links a.active {
    color: var(--primary-color);
}

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

/* 简历页面样式 */
.resume-page {
    padding-top: 90px;
    min-height: 100vh;
    background: var(--bg-light);
}

.resume-page .resume-content {
    max-width: 900px;
    margin: 0 auto;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-color);
    text-decoration: none;
    margin-bottom: 2rem;
    font-weight: 500;
    transition: gap 0.3s ease;
}

.back-link:hover {
    gap: 1rem;
}

.resume-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

.resume-body ul {
    list-style: none;
    padding-left: 0;
}

.resume-body ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
    line-height: 1.6;
}

.resume-body ul li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

.skills-section {
    margin-top: 1.5rem;
}

.skills-category {
    margin-bottom: 1.5rem;
}

.skills-category h5 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: 0.5rem;
}

.skills-list {
    color: var(--text-light);
    line-height: 1.8;
}