/* =============================================================================
   赛博朋克个人主页 2.0 - 主样式文件
   ============================================================================= */

/* CSS 重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Orbitron', 'Courier New', monospace;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    position: relative;
}

/* CSS 变量定义 */
:root {
    /* 主色调 */
    --primary-color: #00ff88;
    --secondary-color: #ff0080;
    --accent-color: #0080ff;
    --success-color: #00ff88;
    --warning-color: #ffaa00;
    --error-color: #ff0040;
    
    /* 背景色 */
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: rgba(17, 17, 17, 0.8);
    --bg-overlay: rgba(0, 0, 0, 0.8);
    
    /* 文字色 */
    --text-primary: #ffffff;
    --text-secondary: #cccccc;
    --text-muted: #888888;
    --text-accent: var(--primary-color);
    
    /* 边框和阴影 */
    --border-color: rgba(0, 255, 136, 0.3);
    --border-radius: 8px;
    --border-radius-large: 16px;
    --shadow-card: 0 8px 32px rgba(0, 255, 136, 0.1);
    --shadow-glow: 0 0 20px rgba(0, 255, 136, 0.5);
    
    /* 尺寸 */
    --container-max-width: 1200px;
    --section-padding: 100px 0;
    --header-height: 80px;
    
    /* 字体大小 */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
    --font-size-5xl: 3rem;
    
    /* 动画时间 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-slower: 0.8s ease;
}

/* 通用工具类 */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: 2px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-normal);
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--primary-color);
    transition: var(--transition-normal);
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: var(--bg-primary);
    box-shadow: var(--shadow-glow);
}

/* 页面加载器 */
.loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loader.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader-content {
    text-align: center;
    color: var(--primary-color);
}

.loader-spinner {
    width: 60px;
    height: 60px;
    border: 3px solid transparent;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 照片放大模态框样式 */
.image-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-normal);
}

.image-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    background: var(--bg-card);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 2px solid var(--primary-color);
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: var(--font-size-xl);
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: var(--transition-fast);
}

.modal-close:hover {
    background: var(--secondary-color);
    transform: scale(1.1);
}

.modal-image {
    width: 100%;
    height: auto;
    max-height: 80vh;
    object-fit: contain;
}

.modal-title {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: 20px;
    margin: 0;
    text-align: center;
    font-size: var(--font-size-lg);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .modal-content {
        max-width: 95vw;
        max-height: 95vh;
    }
    
    .modal-close {
        width: 35px;
        height: 35px;
        font-size: var(--font-size-lg);
    }
    
    .modal-title {
        font-size: var(--font-size-md);
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .modal-content {
        max-width: 98vw;
        max-height: 98vh;
    }
    
    .modal-close {
        width: 30px;
        height: 30px;
        font-size: var(--font-size-md);
        top: 10px;
        right: 10px;
    }
    
    .modal-title {
        font-size: var(--font-size-sm);
        padding: 10px;
    }
}

/* 公益活动照片画廊样式 */
.charity-gallery {
    width: 100%;
    height: auto;
    min-height: 300px;
    overflow: hidden;
    border-radius: var(--border-radius);
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 100px);
    gap: 4px;
    padding: 4px;
}

/* 车型识别项目画廊 - 只有2个元素 */
.car-recognition-gallery .gallery-grid {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    height: 100%;
}

.car-recognition-gallery .gallery-item {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.gallery-item {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 4px;
    transition: var(--transition-fast);
    border: 1px solid rgba(0, 255, 136, 0.2);
}

.gallery-item:hover {
    transform: scale(1.05);
    box-shadow: 0 0 10px var(--primary-color);
    z-index: 2;
}

/* 调整第7张照片的布局 */
.gallery-item:nth-child(7) {
    grid-column: 2 / 3;
    grid-row: 3;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(4, 80px);
    }
    
    .gallery-item:nth-child(7) {
        grid-column: 1 / 2;
        grid-row: 4;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(7, 60px);
    }
    
    .gallery-item:nth-child(7) {
        grid-column: 1;
        grid-row: 7;
    }
}

/* 背景效果 */
.cyber-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: var(--bg-primary);
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 255, 136, 0.1) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 255, 136, 0.1) 1px, transparent 1px);
    background-size: 50px 50px;
    animation: gridMove 20s linear infinite;
}

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

.particles-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 2px;
    height: 2px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); opacity: 1; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 0.5; }
}

.cyber-lines {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.cyber-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    animation: scanLine 8s linear infinite;
}

@keyframes scanLine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100vw); }
}

.energy-field {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 200px;
    height: 200px;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
    animation: energyPulse 4s ease-in-out infinite;
}

@keyframes energyPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.5); opacity: 1; }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(10, 10, 10, 0.98);
    box-shadow: 0 2px 20px rgba(0, 255, 136, 0.1);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    font-weight: bold;
}

.glitch-text {
    position: relative;
    animation: glitch 3s infinite;
}

.glitch-text::before,
.glitch-text::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch-text::before {
    animation: glitch-1 2s infinite;
    color: var(--secondary-color);
    z-index: -1;
}

.glitch-text::after {
    animation: glitch-2 2s infinite;
    color: var(--accent-color);
    z-index: -2;
}

@keyframes glitch {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(2px, -2px); }
    40% { transform: translate(2px, 2px); }
    60% { transform: translate(-2px, -2px); }
    80% { transform: translate(-2px, 2px); }
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 30px;
    list-style: none;
}

.nav-menu li a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
    padding: 8px 0;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition-fast);
}

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

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

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

/* 英雄区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(0, 255, 136, 0.5);
}

.typing-text {
    border-right: 3px solid var(--primary-color);
    animation: blink 1s infinite;
    white-space: nowrap;
    overflow: hidden;
}

@keyframes blink {
    0%, 50% { border-color: transparent; }
    51%, 100% { border-color: var(--primary-color); }
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.6;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hologram-container {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    z-index: 1;
    opacity: 0.3;
}

.hologram {
    width: 100%;
    height: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: hologramRotate 20s linear infinite;
    position: relative;
}

.hologram::before,
.hologram::after {
    content: '';
    position: absolute;
    border: 1px solid var(--accent-color);
    border-radius: 50%;
}

.hologram::before {
    top: 20px;
    left: 20px;
    right: 20px;
    bottom: 20px;
    animation: hologramPulse 4s ease-in-out infinite;
}

.hologram::after {
    top: 40px;
    left: 40px;
    right: 40px;
    bottom: 40px;
    animation: hologramPulse 4s ease-in-out infinite reverse;
}

@keyframes hologramRotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes hologramPulse {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.1); }
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-element {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 8s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    top: 60%;
    right: 15%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    bottom: 30%;
    left: 20%;
    animation-delay: 4s;
}

.floating-element:nth-child(4) {
    top: 40%;
    right: 25%;
    animation-delay: 6s;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    font-size: var(--font-size-sm);
}

.scroll-arrow {
    width: 20px;
    height: 20px;
    border-right: 2px solid var(--text-muted);
    border-bottom: 2px solid var(--text-muted);
    transform: rotate(45deg);
    animation: scrollDown 2s infinite;
}

@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 scrollDown {
    0% { opacity: 1; transform: rotate(45deg) translateY(0); }
    100% { opacity: 0; transform: rotate(45deg) translateY(10px); }
}

/* 关于我区域 */
.about-section {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.cyber-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 40px;
    backdrop-filter: blur(20px);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.cyber-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    transition: var(--transition-slow);
}

.cyber-card:hover::before {
    left: 100%;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.card-header h3 {
    color: var(--primary-color);
    font-size: var(--font-size-2xl);
    font-weight: bold;
}

.card-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 20px;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: statusPulse 2s ease-in-out infinite;
}

.status-text {
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: 500;
}

@keyframes statusPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.card-content {
    margin-bottom: 30px;
}

.card-content p {
    color: var(--text-primary);
    line-height: 1.8;
    margin-bottom: 20px;
    font-size: var(--font-size-base);
}

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(0, 255, 136, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.stat-number {
    font-size: var(--font-size-3xl);
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.image-frame {
    position: relative;
    width: 100%;
    height: 400px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    background: var(--bg-card);
}

.image-frame::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(0, 255, 136, 0.1) 50%, transparent 70%);
    animation: scanEffect 3s ease-in-out infinite;
}

@keyframes scanEffect {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 技能区域 */
.skills-section {
    padding: var(--section-padding);
    background: var(--bg-primary);
}

.skills-content {
    text-align: center;
    margin-bottom: 60px;
}

.skills-content h2 {
    font-size: var(--font-size-4xl);
    color: var(--text-primary);
    margin-bottom: 20px;
}

.skills-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.skill-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 30px;
    backdrop-filter: blur(20px);
}

.skill-category h3 {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    margin-bottom: 20px;
    text-align: center;
}

.skill-item {
    margin-bottom: 20px;
}

.skill-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.skill-name {
    color: var(--text-primary);
    font-weight: 500;
}

.skill-percentage {
    color: var(--primary-color);
    font-size: var(--font-size-sm);
    font-weight: bold;
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 4px;
    transition: width 2s ease;
    position: relative;
}

.skill-progress::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: skillShine 2s ease-in-out infinite;
}

@keyframes skillShine {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* 项目区域 */
.projects-section {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.projects-content {
    text-align: center;
    margin-bottom: 60px;
}

.projects-content h2 {
    font-size: var(--font-size-4xl);
    color: var(--text-primary);
    margin-bottom: 20px;
}

.projects-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.projects-filter {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 20px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-color);
    color: var(--bg-primary);
    border-color: var(--primary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    transition: var(--transition-normal);
    backdrop-filter: blur(20px);
}

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

.project-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, var(--primary-color), var(--accent-color));
    position: relative;
    overflow: hidden;
}

/* 车型识别项目图片容器 */
.car-recognition-gallery {
    width: 100%;
    height: 100%;
    position: relative;
}

.project-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.2) 50%, transparent 70%);
    animation: projectScan 3s ease-in-out infinite;
}

@keyframes projectScan {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

.project-content {
    padding: 25px;
}

.project-title {
    color: var(--primary-color);
    font-size: var(--font-size-xl);
    margin-bottom: 15px;
    font-weight: bold;
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.project-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.project-tag {
    padding: 5px 12px;
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 15px;
    color: var(--primary-color);
    font-size: var(--font-size-sm);
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-link {
    padding: 8px 16px;
    border: 1px solid var(--primary-color);
    background: transparent;
    color: var(--primary-color);
    text-decoration: none;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
    font-size: var(--font-size-sm);
}

.project-link:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
}

/* 博客区域 */
.blog-section {
    padding: var(--section-padding);
    background: var(--bg-primary);
}

.blog-content {
    text-align: center;
    margin-bottom: 60px;
}

.blog-content h2 {
    font-size: var(--font-size-4xl);
    color: var(--text-primary);
    margin-bottom: 20px;
}

.blog-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    overflow: hidden;
    transition: var(--transition-normal);
    backdrop-filter: blur(20px);
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-card);
}

.blog-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
    position: relative;
}

.blog-date {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(0, 0, 0, 0.8);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-sm);
}

.blog-content-inner {
    padding: 25px;
}

.blog-title {
    color: var(--text-primary);
    font-size: var(--font-size-lg);
    margin-bottom: 15px;
    font-weight: bold;
}

.blog-excerpt {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: var(--font-size-sm);
}

.blog-author {
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
}

.blog-read-more:hover {
    color: var(--accent-color);
}

/* 联系区域 */
.contact-section {
    padding: var(--section-padding);
    background: var(--bg-secondary);
}

.contact-content {
    text-align: center;
    margin-bottom: 60px;
}

.contact-content h2 {
    font-size: var(--font-size-4xl);
    color: var(--text-primary);
    margin-bottom: 20px;
}

.contact-content p {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info {
    text-align: left;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 30px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    backdrop-filter: blur(20px);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg-primary);
    font-size: var(--font-size-xl);
}

.contact-details h3 {
    color: var(--primary-color);
    font-size: var(--font-size-4xl);
    margin-bottom: 5px;
    font-weight: bold;
}

.contact-details p {
    color: var(--text-secondary);
    margin: 0;
}

.contact-form {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-large);
    padding: 40px;
    backdrop-filter: blur(20px);
    margin-top: 30px;
}

.form-group {
    margin-bottom: 25px;
    position: relative;
}

.form-group label {
    display: block;
    color: var(--text-primary);
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    transition: var(--transition-fast);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 255, 136, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-submit {
    width: 100%;
    padding: 15px;
    background: var(--primary-color);
    color: var(--bg-primary);
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-lg);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: inherit;
}

.form-submit:hover {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

/* 页脚 */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--border-color);
    padding: 40px 0 20px;
    text-align: center;
}

.footer-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 20px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.footer-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.footer-social {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 20px;
}

.social-link {
    width: 60px;
    height: 60px;
    background: var(--bg-card);
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
    font-size: 24px;
    margin-top: -50px;
}

.social-link:hover {
    background: var(--primary-color);
    color: var(--bg-primary);
    transform: translateY(-3px) scale(1.1);
    box-shadow: var(--shadow-glow);
}

/* 社交媒体网格样式 */
.social-links h4 {
    font-size: var(--font-size-2xl);
    color: var(--text-primary);
    margin-bottom: 15px;
}

.social-grid {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
}

.social-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    position: relative;
}

.social-item:hover .qr-code {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.qr-code {
    width: 120px;
    height: 120px;
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-normal);
    position: absolute;
    bottom: -140px;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    background: var(--bg-card);
    padding: 10px;
    box-shadow: var(--shadow-card);
    z-index: 100;
}

.social-item:hover .qr-code {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.footer-copyright {
    color: var(--text-muted);
    font-size: var(--font-size-sm);
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

/* 回到顶部按钮 */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--bg-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    transition: var(--transition-normal);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    background: var(--accent-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

/* 通知系统 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    color: var(--text-primary);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-card);
    transform: translateX(100%);
    transition: var(--transition-normal);
    z-index: 10000;
    max-width: 300px;
}

.notification.show {
    transform: translateX(0);
}

.notification.success {
    border-color: var(--success-color);
}

.notification.error {
    border-color: var(--error-color);
}

.notification.warning {
    border-color: var(--warning-color);
}

.notification-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.notification-title {
    font-weight: bold;
    color: var(--primary-color);
}

.notification-close {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: var(--font-size-lg);
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.notification-message {
    color: var(--text-secondary);
    line-height: 1.5;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: var(--font-size-4xl);
    }
    
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px 0;
        --header-height: 70px;
    }
    
    .nav-menu {
        position: fixed;
        top: var(--header-height);
        left: 0;
        width: 100%;
        background: rgba(10, 10, 10, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 20px 0;
        gap: 20px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .hero-title {
        font-size: var(--font-size-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--font-size-lg);
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .stats {
        grid-template-columns: 1fr;
    }
    
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .hero-title {
        font-size: var(--font-size-2xl);
    }
    
    .cyber-card {
        padding: 25px;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 15px;
    }
    
    .notification {
        right: 10px;
        left: 10px;
        max-width: none;
    }
}

/* 无障碍支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 浅色主题变量 */
:root[data-theme="light"] {
    --primary-color: #00aa55;
    --secondary-color: #cc0066;
    --accent-color: #0066cc;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f5f5;
    --bg-card: rgba(255, 255, 255, 0.9);
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: rgba(0, 170, 85, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 170, 85, 0.1);
}

/* 浅色主题下的导航栏样式 */
:root[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid rgba(0, 170, 85, 0.2);
}

:root[data-theme="light"] .navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 170, 85, 0.1);
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #00ff00;
        --secondary-color: #ff0000;
        --accent-color: #0000ff;
        --text-primary: #ffffff;
        --bg-primary: #000000;
    }
}

/* 焦点可见性增强 */
button:focus,
input:focus,
textarea:focus,
select:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 工具提示样式 */
[data-tooltip] {
    position: relative;
}

[data-tooltip]::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-primary);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-size: var(--font-size-xs);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    border: 1px solid var(--primary-color);
    z-index: 1000;
    pointer-events: none;
}

[data-tooltip]:hover::after {
    opacity: 1;
    visibility: visible;
}

/* 动画元素样式 */
.animate-element {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s ease;
}

.animate-element.animate-in {
    opacity: 1;
    transform: translateY(0);
}

/* 表单验证样式 */
.form-validation {
    position: absolute;
    bottom: -20px;
    left: 0;
    font-size: var(--font-size-xs);
    color: var(--error-color);
    opacity: 0;
    transition: var(--transition-fast);
}

.form-group.error .form-validation {
    opacity: 1;
}

.form-group.error input,
.form-group.error textarea {
    border-color: var(--error-color);
}

.form-group.success input,
.form-group.success textarea {
    border-color: var(--success-color);
}

/* 加载状态样式 */
.loading {
    pointer-events: none;
    opacity: 0.7;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}