/* ============================================
   主样式表 - 高级深色主题设计
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

:root {
    /* 深色主题配色 */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    
    /* 霓虹色调 */
    --accent-cyan: #00f5d4;
    --accent-amber: #f59e0b;
    --accent-pink: #f472b6;
    
    /* 文字颜色 */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.4);
    
    /* 边框 */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(0, 245, 212, 0.3);
    
    /* 过渡 */
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ============================================
   动态背景
   ============================================ */

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse 80% 50% at 20% 40%, rgba(0, 245, 212, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 60%, rgba(244, 114, 182, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse 50% 30% at 50% 80%, rgba(245, 158, 11, 0.04) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: bgPulse 15s ease-in-out infinite;
}

@keyframes bgPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* 网格背景 */
.grid-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
    background-size: 80px 80px;
    pointer-events: none;
    z-index: -1;
    animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
    0% { transform: translate(0, 0); }
    100% { transform: translate(80px, 80px); }
}

/* ============================================
   粒子效果容器
   ============================================ */

.particles-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--accent-cyan);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 20s infinite ease-in-out;
    box-shadow: 0 0 6px var(--accent-cyan), 0 0 12px var(--accent-cyan);
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100vh) scale(0);
    }
    10% {
        opacity: 0.6;
    }
    90% {
        opacity: 0.6;
    }
    100% {
        opacity: 0;
        transform: translateY(-20vh) scale(1);
    }
}

/* 浮动几何装饰 */
.geo-shape {
    position: fixed;
    pointer-events: none;
    z-index: 0;
    opacity: 0.03;
}

.geo-shape-1 {
    top: 15%;
    left: 10%;
    width: 200px;
    height: 200px;
    border: 1px solid var(--accent-cyan);
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation: geoFloat1 25s ease-in-out infinite;
}

.geo-shape-2 {
    bottom: 20%;
    right: 8%;
    width: 150px;
    height: 150px;
    border: 1px solid var(--accent-pink);
    transform: rotate(45deg);
    animation: geoFloat2 20s ease-in-out infinite;
}

.geo-shape-3 {
    top: 60%;
    left: 5%;
    width: 100px;
    height: 100px;
    border: 1px solid var(--accent-amber);
    border-radius: 50%;
    animation: geoFloat3 18s ease-in-out infinite;
}

@keyframes geoFloat1 {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    33% { transform: translate(30px, 20px) rotate(120deg); }
    66% { transform: translate(-20px, 40px) rotate(240deg); }
}

@keyframes geoFloat2 {
    0%, 100% { transform: rotate(45deg) scale(1); }
    50% { transform: rotate(135deg) scale(1.1); }
}

@keyframes geoFloat3 {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.03; }
    50% { transform: translate(40px, -30px) scale(1.2); opacity: 0.06; }
}

/* ============================================
   点击波纹特效
   ============================================ */

.click-ripple {
    position: fixed;
    border-radius: 50%;
    pointer-events: none;
    z-index: 9999;
    background: radial-gradient(circle, rgba(0, 245, 212, 0.4) 0%, transparent 70%);
    transform: scale(0);
    animation: rippleEffect 0.6s ease-out forwards;
}

@keyframes rippleEffect {
    0% {
        transform: scale(0);
        opacity: 1;
    }
    100% {
        transform: scale(4);
        opacity: 0;
    }
}

/* 鼠标跟随光点 */
.cursor-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 245, 212, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    transition: transform 0.15s ease-out, opacity 0.3s ease;
    opacity: 0;
}

.cursor-glow.active {
    opacity: 1;
}

/* 链接悬停光效 - 仅用于 skill-tag 和 project-link */
.skill-tag::before,
.project-link::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: radial-gradient(circle, rgba(0, 245, 212, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
    z-index: -1;
}

.skill-tag:hover::before,
.project-link:hover::before {
    width: 200px;
    height: 200px;
}

/* ============================================
   导航栏 - 毛玻璃效果
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.95);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-cyan);
    text-shadow: 0 0 20px rgba(0, 245, 212, 0.5);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition);
    padding: 0.5rem 0;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-cyan);
    box-shadow: 0 0 10px var(--accent-cyan);
    transition: var(--transition);
}

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

.nav-link:hover::before {
    width: 100%;
}

/* ============================================
   英雄区 - 震撼开场
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    overflow: hidden;
}

/* 装饰性光圈 */
.hero::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(0, 245, 212, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 4s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(244, 114, 182, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    top: 30%;
    right: -10%;
    animation: pulse 5s ease-in-out infinite reverse;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.1); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 800px;
}

/* 头像区域 */
.avatar-container {
    position: relative;
    margin-bottom: 2.5rem;
    display: inline-block;
}

.avatar-ring {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    background: conic-gradient(from 0deg, var(--accent-cyan), var(--accent-pink), var(--accent-amber), var(--accent-cyan));
    animation: spin 8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.avatar-ring::before {
    content: '';
    position: absolute;
    inset: 3px;
    background: var(--bg-primary);
    border-radius: 50%;
}

.avatar {
    position: relative;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 4px;
    border: 2px solid var(--bg-primary);
    transition: var(--transition);
}

.avatar-container:hover .avatar {
    transform: scale(1.05);
}

/* 文字排版 */
.hero-name {
    font-size: clamp(2.5rem, 8vw, 4.5rem);
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1.1;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out;
}

.hero-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.1rem;
    color: var(--accent-cyan);
    margin-bottom: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    animation: fadeInUp 1s ease-out 0.1s both;
    text-shadow: 0 0 30px rgba(0, 245, 212, 0.5);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto 2.5rem;
    font-weight: 300;
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* 按钮组 */
.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.btn {
    padding: 0.9rem 2.2rem;
    border-radius: 60px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border: none;
    box-shadow: 0 0 30px rgba(0, 245, 212, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 40px rgba(0, 245, 212, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-cyan);
    transform: translateY(-3px);
}

/* 向下滚动指示器 */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.mouse::after {
    content: '';
    position: absolute;
    width: 4px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 2px;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 1.5s infinite;
    box-shadow: 0 0 10px var(--accent-cyan);
}

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

@keyframes scroll {
    0% { opacity: 1; top: 6px; }
    100% { opacity: 0; top: 20px; }
}

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

/* ============================================
   通用区域样式
   ============================================ */

.main-container {
    position: relative;
}

.section-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 6rem 2rem;
}

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

.section-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85rem;
    color: var(--accent-cyan);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
    display: block;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-secondary);
    max-width: 500px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* ============================================
   关于区 - 毛玻璃卡片
   ============================================ */

.about {
    position: relative;
}

.about-content {
    display: grid;
    gap: 2rem;
}

.about-text {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 2.5rem;
    font-size: 1.1rem;
    line-height: 1.9;
    color: var(--text-secondary);
    position: relative;
    overflow: hidden;
}

.about-text::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: 20px;
    font-size: 150px;
    font-family: Georgia, serif;
    color: var(--border-color);
    line-height: 1;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.about-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.about-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
    opacity: 0;
    transition: var(--transition);
}

.about-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: var(--border-glow);
    box-shadow: 0 20px 50px rgba(0, 245, 212, 0.1);
}

.about-card:hover::before {
    opacity: 1;
}

.about-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.about-card h3::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    box-shadow: 0 0 15px var(--accent-cyan);
}

.list-items {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.list-items li {
    list-style: none;
    padding-left: 1.8rem;
    position: relative;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.list-items li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--accent-cyan);
    font-size: 0.8rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.skill-tag {
    background: rgba(0, 245, 212, 0.1);
    color: var(--accent-cyan);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    border: 1px solid rgba(0, 245, 212, 0.2);
    transition: var(--transition);
}

.skill-tag:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    transform: scale(1.05);
}

/* 创业项目卡片特殊样式 */
.startup-card {
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.08) 0%, rgba(99, 102, 241, 0.05) 100%);
    border-color: rgba(0, 245, 212, 0.2);
}

.startup-card:hover {
    border-color: var(--accent-cyan);
    box-shadow: 0 20px 50px rgba(0, 245, 212, 0.15);
}

.startup-card h3::before {
    background: var(--accent-cyan);
    box-shadow: 0 0 15px var(--accent-cyan);
}

.startup-desc {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
}

.btn-startup {
    background: linear-gradient(135deg, var(--accent-cyan), #06b6d4);
    color: var(--bg-primary);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    padding: 0.8rem 1.5rem;
    box-shadow: 0 0 20px rgba(0, 245, 212, 0.3);
}

.btn-startup:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 245, 212, 0.5);
}

/* 小程序卡片特殊样式 */
.miniapp-card {
    background: linear-gradient(135deg, rgba(244, 114, 182, 0.08) 0%, rgba(139, 92, 246, 0.05) 100%);
    border-color: rgba(244, 114, 182, 0.2);
}

.miniapp-card:hover {
    border-color: var(--accent-pink);
    box-shadow: 0 20px 50px rgba(244, 114, 182, 0.15);
}

.miniapp-card h3::before {
    background: var(--accent-pink);
    box-shadow: 0 0 15px var(--accent-pink);
}

.miniapp-content {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.miniapp-info {
    flex: 1;
}

.miniapp-desc {
    color: var(--text-secondary);
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.miniapp-hint {
    color: var(--accent-pink);
    font-size: 0.85rem;
    font-weight: 500;
    margin: 0;
}

.miniapp-qrcode {
    flex-shrink: 0;
}

.qrcode-img {
    width: 110px;
    height: 110px;
    border-radius: 12px;
    border: 1px solid rgba(244, 114, 182, 0.3);
    transition: var(--transition);
}

.miniapp-card:hover .qrcode-img {
    box-shadow: 0 0 20px rgba(244, 114, 182, 0.3);
    transform: scale(1.05);
}

@media (max-width: 480px) {
    .miniapp-content {
        flex-direction: column;
        text-align: center;
    }
}

/* 摄影卡片特殊样式 */
.photography-card {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.08) 0%, rgba(0, 245, 212, 0.05) 100%);
    border-color: rgba(245, 158, 11, 0.2);
}

.photography-card:hover {
    border-color: var(--accent-amber);
    box-shadow: 0 20px 50px rgba(245, 158, 11, 0.15);
}

.photography-card h3::before {
    background: var(--accent-amber);
    box-shadow: 0 0 15px var(--accent-amber);
}

.photography-desc {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
}

.btn-photography {
    background: linear-gradient(135deg, var(--accent-amber) 0%, #f97316 100%);
    color: var(--bg-primary);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    font-size: 0.95rem;
    padding: 0.8rem 1.5rem;
    box-shadow: 0 0 20px rgba(245, 158, 11, 0.3);
}

.btn-photography:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(245, 158, 11, 0.5);
}

/* ============================================
   项目区 - 悬浮卡片
   ============================================ */

.projects {
    position: relative;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    overflow: hidden;
    transition: var(--transition-slow);
    position: relative;
}

.project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.1) 0%, rgba(244, 114, 182, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--border-glow);
    box-shadow: 0 30px 60px rgba(0, 245, 212, 0.15);
}

.project-card:hover::before {
    opacity: 1;
}

.project-image {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, rgba(0, 245, 212, 0.15) 0%, rgba(244, 114, 182, 0.1) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3.5rem;
    position: relative;
    overflow: hidden;
}

.project-image::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: var(--transition);
}

.project-card:hover .project-image::after {
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    100% { transform: translateX(100%); }
}

.project-content {
    padding: 1.8rem;
    position: relative;
    z-index: 1;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1.2rem;
    font-size: 0.95rem;
    line-height: 1.7;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.2rem;
}

.project-tag {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border-color);
}

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

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--accent-cyan);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.project-link:hover {
    color: var(--text-primary);
    transform: translateX(3px);
}

.project-link-icon {
    width: 18px;
    height: 18px;
}

/* ============================================
   联系区 - 霓虹风格
   ============================================ */

.contact {
    position: relative;
    background: linear-gradient(180deg, transparent 0%, rgba(0, 245, 212, 0.03) 100%);
}

.contact .section-label {
    color: var(--accent-pink);
}

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

.social-icon {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 1rem 2rem;
    border: 1px solid var(--border-color);
    border-radius: 60px;
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.social-icon svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.social-icon:hover {
    background: var(--accent-cyan);
    color: var(--bg-primary);
    border-color: var(--accent-cyan);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 245, 212, 0.3);
}

/* ============================================
   页脚
   ============================================ */

.footer {
    background: var(--bg-secondary);
    color: var(--text-muted);
    text-align: center;
    padding: 2.5rem;
    font-size: 0.9rem;
    border-top: 1px solid var(--border-color);
}

.footer a {
    color: var(--accent-cyan);
    text-decoration: none;
}

.footer .icp {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    opacity: 0.7;
}

.footer .icp a {
    color: var(--text-muted);
}

.footer .icp a:hover {
    color: var(--accent-cyan);
}

/* ============================================
   动画类
   ============================================ */

.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   响应式设计
   ============================================ */

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero {
        padding: 5rem 1.5rem 3rem;
    }
    
    .avatar {
        width: 130px;
        height: 130px;
    }
    
    .section-container {
        padding: 4rem 1.5rem;
    }
    
    .about-text {
        padding: 1.8rem;
        font-size: 1rem;
    }
    
    .about-card {
        padding: 1.5rem;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .social-links {
        flex-direction: column;
        align-items: center;
    }
    
    .social-icon {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .scroll-indicator {
        bottom: 25px;
    }
}

@media (max-width: 480px) {
    .hero-name {
        letter-spacing: -1px;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }
    
    .project-links {
        flex-direction: column;
        gap: 0.8rem;
    }
}