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

/* CSS变量定义 - 淡蓝色主题 */
:root {
    /* 主色调 - 淡蓝色系 */
    --primary-color: #007AFF;
    --primary-light: #5AC8FA;
    --primary-dark: #0051D5;
    --secondary-color: #34C759;
    --accent-color: #FF9500;
    
    /* 背景色 */
    --bg-primary: rgba(245, 248, 255, 0.95);
    --bg-secondary: rgba(255, 255, 255, 0.8);
    --bg-tertiary: rgba(240, 245, 255, 0.6);
    
    /* 文字颜色 */
    --text-primary: #1D1D1F;
    --text-secondary: #6E6E73;
    --text-tertiary: #8E8E93;
    --text-white: #FFFFFF;
    
    /* 玻璃效果 */
    --glass-bg: rgba(255, 255, 255, 0.25);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-shadow: 0 8px 32px rgba(0, 122, 255, 0.15);
    
    /* 阴影 */
    --shadow-light: 0 2px 10px rgba(0, 122, 255, 0.1);
    --shadow-medium: 0 4px 20px rgba(0, 122, 255, 0.15);
    --shadow-heavy: 0 8px 40px rgba(0, 122, 255, 0.2);
    
    /* 圆角 */
    --radius-small: 8px;
    --radius-medium: 12px;
    --radius-large: 20px;
    --radius-xl: 28px;
    
    /* 动画 */
    --transition-fast: 0.2s ease-out;
    --transition-medium: 0.3s ease-out;
    --transition-slow: 0.5s ease-out;
}

/* 暗色主题变量 */
[data-theme="dark"] {
    --bg-primary: rgba(28, 28, 30, 0.95);
    --bg-secondary: rgba(44, 44, 46, 0.8);
    --bg-tertiary: rgba(58, 58, 60, 0.6);
    
    --text-primary: #F2F2F7;
    --text-secondary: #AEAEB2;
    --text-tertiary: #8E8E93;
    
    --glass-bg: rgba(44, 44, 46, 0.4);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    
    --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.2);
    --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-heavy: 0 8px 40px rgba(0, 0, 0, 0.4);
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-primary);
    overflow-x: hidden;
    transition: all var(--transition-medium);
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Liquid Glass效果基础类 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
}

/* 动态背景容器 */
.background-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.background-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, 
        rgba(0, 122, 255, 0.1) 0%,
        rgba(90, 200, 250, 0.08) 25%,
        rgba(52, 199, 89, 0.06) 50%,
        rgba(255, 149, 0, 0.08) 75%,
        rgba(0, 122, 255, 0.1) 100%);
    animation: backgroundFlow 20s ease-in-out infinite;
}

.background-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 20%, rgba(0, 122, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(90, 200, 250, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 40% 60%, rgba(52, 199, 89, 0.06) 0%, transparent 50%);
    animation: particleFloat 15s ease-in-out infinite;
}

/* 鼠标光影跟随 */
.mouse-glow {
    position: fixed;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 122, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
    transition: all 0.1s ease-out;
    transform: translate(-50%, -50%);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 15px 0;
    transition: all var(--transition-medium);
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-light);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.nav-logo h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    padding: 8px 16px;
    border-radius: var(--radius-medium);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-link:hover {
    color: var(--primary-color);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: translateY(-2px);
}

.nav-controls {
    display: flex;
    align-items: center;
    gap: 15px;
}

.theme-toggle {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 50%;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-medium);
}

.theme-icon {
    font-size: 1.2rem;
    transition: all var(--transition-fast);
}

/* 主页英雄区域 */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    position: relative;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 20px;
}

.title-line {
    display: block;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: titleGlow 3s ease-in-out infinite;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 14px 28px;
    border: none;
    border-radius: var(--radius-medium);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--text-white);
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
    transform: translateY(-3px);
}

/* 个人资料卡片 */
.profile-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-heavy);
    transition: all var(--transition-medium);
}

.profile-card:hover {
    transform: translateY(-10px) rotateY(5deg);
    box-shadow: 0 20px 60px rgba(0, 122, 255, 0.25);
}

.profile-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--glass-border);
    box-shadow: var(--shadow-medium);
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.profile-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.profile-info p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* 章节样式 */
section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 关于我部分 */
.about-content {
    max-width: 800px;
    margin: 0 auto;
}

.about-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.about-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.experience-item {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    padding: 25px;
    margin-bottom: 20px;
    transition: all var(--transition-fast);
}

.experience-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.experience-item h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.experience-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 技能部分 */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.skill-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-large);
    padding: 30px;
    text-align: center;
    transition: all var(--transition-medium);
    box-shadow: var(--shadow-light);
}

.skill-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-heavy);
}

.skill-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    border-radius: var(--radius-medium);
    overflow: hidden;
    box-shadow: var(--shadow-medium);
    transition: all var(--transition-fast);
}

.skill-card:hover .skill-icon {
    transform: scale(1.1) rotateY(10deg);
}

.skill-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.skill-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.skill-card p {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.5;
}

.skill-level {
    background: rgba(0, 122, 255, 0.1);
    border-radius: var(--radius-small);
    height: 8px;
    overflow: hidden;
    position: relative;
}

.skill-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-small);
    transition: width 1s ease-out;
    position: relative;
}

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

/* 作品集预览部分 */
.portfolio-categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.category-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-large);
    overflow: hidden;
    transition: all var(--transition-medium);
    cursor: pointer;
    box-shadow: var(--shadow-light);
}

.category-card:hover {
    transform: translateY(-15px) rotateX(5deg);
    box-shadow: var(--shadow-heavy);
}

.category-image {
    height: 200px;
    overflow: hidden;
    position: relative;
}

.category-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all var(--transition-slow);
}

.category-card:hover .category-image img {
    transform: scale(1.1);
}

.category-info {
    padding: 25px;
}

.category-info h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.category-info p {
    color: var(--text-secondary);
    margin-bottom: 15px;
    line-height: 1.5;
}

.category-count {
    display: inline-block;
    background: var(--primary-color);
    color: var(--text-white);
    padding: 4px 12px;
    border-radius: var(--radius-small);
    font-size: 0.9rem;
    font-weight: 500;
}

.portfolio-actions {
    text-align: center;
}

/* 联系部分 */
.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--primary-color);
}

.contact-info p {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
    padding: 15px;
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    transition: all var(--transition-fast);
}

.contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.contact-icon {
    font-size: 1.5rem;
}

.contact-form {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-large);
    padding: 40px;
    box-shadow: var(--shadow-medium);
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-medium);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: var(--text-primary);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.1);
    transform: translateY(-2px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-tertiary);
}

/* 页脚 */
.footer {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--glass-border);
    padding: 30px 0;
    text-align: center;
    color: var(--text-secondary);
}

/* 动画关键帧 */
@keyframes backgroundFlow {
    0%, 100% { transform: translateX(0) translateY(0) rotate(0deg); }
    25% { transform: translateX(-5px) translateY(-10px) rotate(1deg); }
    50% { transform: translateX(5px) translateY(5px) rotate(-1deg); }
    75% { transform: translateX(-3px) translateY(8px) rotate(0.5deg); }
}

@keyframes particleFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

@keyframes titleGlow {
    0%, 100% { filter: brightness(1); }
    50% { filter: brightness(1.2); }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
    }
    
    .portfolio-categories {
        grid-template-columns: 1fr;
    }
}


/* 响应式设计增强 */

/* 大屏幕设备 (1440px+) */
@media (min-width: 1440px) {
    .container {
        max-width: 1400px;
    }
    
    .hero-title {
        font-size: 4rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .portfolio-categories {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* 平板设备 (768px - 1024px) */
@media (min-width: 768px) and (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 50px;
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 25px;
    }
    
    .portfolio-categories {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .nav-menu {
        gap: 20px;
    }
    
    .nav-link {
        padding: 6px 12px;
        font-size: 0.9rem;
    }
    
    .portfolio-grid {
        columns: 2;
        padding: 25px;
    }
}

/* 小平板和大手机 (480px - 767px) */
@media (min-width: 480px) and (max-width: 767px) {
    .container {
        padding: 0 15px;
    }
    
    .hero-title {
        font-size: 2.2rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
        padding: 16px 24px;
    }
    
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .skill-card {
        padding: 25px;
    }
    
    .portfolio-categories {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .category-card {
        margin-bottom: 15px;
    }
    
    .category-image {
        height: 180px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .navbar {
        padding: 12px 0;
    }
    
    .nav-container {
        padding: 0 15px;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 40px;
    }
    
    section {
        padding: 60px 0;
    }
    
    .about-text h3 {
        font-size: 1.3rem;
    }
    
    .about-text p {
        font-size: 1rem;
    }
    
    .experience-item {
        padding: 20px;
    }
    
    .contact-form {
        padding: 30px;
    }
    
    .form-group input,
    .form-group textarea {
        padding: 12px;
    }
    
    .portfolio-grid {
        columns: 1;
        padding: 20px;
    }
    
    .modal-content {
        margin: 15px;
        max-height: 92vh;
    }
    
    .modal-header {
        padding: 20px;
    }
    
    .portfolio-filters {
        padding: 20px;
        gap: 8px;
    }
    
    .filter-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
    }
}

/* 小手机 (最大479px) */
@media (max-width: 479px) {
    .container {
        padding: 0 12px;
    }
    
    .hero-section {
        padding: 80px 0 40px;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .hero-description {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .profile-card {
        padding: 25px;
    }
    
    .profile-avatar {
        width: 100px;
        height: 100px;
    }
    
    .skill-card {
        padding: 20px;
    }
    
    .skill-icon {
        width: 60px;
        height: 60px;
    }
    
    .skill-card h3 {
        font-size: 1.1rem;
    }
    
    .category-image {
        height: 150px;
    }
    
    .category-info {
        padding: 20px;
    }
    
    .category-info h3 {
        font-size: 1.1rem;
    }
    
    .nav-logo h2 {
        font-size: 1.3rem;
    }
    
    .theme-toggle {
        width: 40px;
        height: 40px;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: 35px;
    }
    
    section {
        padding: 50px 0;
    }
    
    .about-text h3 {
        font-size: 1.2rem;
    }
    
    .experience-item {
        padding: 18px;
    }
    
    .experience-item h4 {
        font-size: 1.1rem;
    }
    
    .contact-info h3 {
        font-size: 1.5rem;
    }
    
    .contact-item {
        padding: 12px;
        gap: 12px;
    }
    
    .contact-icon {
        font-size: 1.3rem;
    }
    
    .contact-form {
        padding: 25px;
    }
    
    .modal-content {
        margin: 10px;
        max-height: 95vh;
    }
    
    .modal-header {
        padding: 18px;
    }
    
    .modal-header h2 {
        font-size: 1.5rem;
    }
    
    .portfolio-filters {
        padding: 18px;
        gap: 6px;
    }
    
    .filter-btn {
        padding: 6px 12px;
        font-size: 0.75rem;
    }
    
    .portfolio-grid {
        padding: 18px;
    }
    
    .portfolio-item-info {
        padding: 12px;
    }
    
    .portfolio-item-title {
        font-size: 0.9rem;
    }
    
    .portfolio-item-category {
        font-size: 0.8rem;
    }
    
    .viewer-prev,
    .viewer-next {
        width: 35px;
        height: 35px;
        font-size: 1.1rem;
    }
    
    .viewer-close {
        width: 35px;
        height: 35px;
        font-size: 1.3rem;
        top: 15px;
        right: 15px;
    }
    
    .viewer-thumbnails {
        padding: 8px;
        gap: 6px;
    }
    
    .viewer-thumbnail {
        width: 45px;
        height: 45px;
    }
}

/* 横屏模式优化 */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        min-height: auto;
        padding: 60px 0 40px;
    }
    
    .hero-content {
        gap: 40px;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .profile-card {
        padding: 30px;
    }
    
    .profile-avatar {
        width: 80px;
        height: 80px;
    }
    
    section {
        padding: 40px 0;
    }
    
    .modal-content {
        max-height: 85vh;
    }
}

/* 高分辨率屏幕优化 */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .skill-icon img,
    .profile-avatar img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: crisp-edges;
    }
}

/* 打印样式 */
@media print {
    .navbar,
    .theme-toggle,
    .portfolio-modal,
    .image-viewer,
    .background-container,
    .mouse-glow {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero-section,
    section {
        page-break-inside: avoid;
        padding: 20px 0;
    }
    
    .skill-card,
    .category-card,
    .experience-item {
        page-break-inside: avoid;
        box-shadow: none !important;
        border: 1px solid #ddd;
    }
}

/* 暗色主题增强 */
[data-theme="dark"] {
    /* 背景渐变调整 */
    .background-animation {
        background: linear-gradient(135deg, 
            rgba(0, 122, 255, 0.05) 0%,
            rgba(90, 200, 250, 0.03) 25%,
            rgba(52, 199, 89, 0.02) 50%,
            rgba(255, 149, 0, 0.03) 75%,
            rgba(0, 122, 255, 0.05) 100%);
    }
    
    /* 鼠标光影调整 */
    .mouse-glow {
        background: radial-gradient(circle, rgba(0, 122, 255, 0.08) 0%, transparent 70%);
    }
    
    /* 技能条暗色主题 */
    .skill-level {
        background: rgba(255, 255, 255, 0.1);
    }
    
    /* 表单元素暗色主题 */
    .form-group input::placeholder,
    .form-group textarea::placeholder {
        color: var(--text-tertiary);
        opacity: 0.7;
    }
    
    /* 滚动条样式 */
    .portfolio-grid::-webkit-scrollbar {
        width: 8px;
    }
    
    .portfolio-grid::-webkit-scrollbar-track {
        background: rgba(255, 255, 255, 0.1);
        border-radius: 4px;
    }
    
    .portfolio-grid::-webkit-scrollbar-thumb {
        background: rgba(255, 255, 255, 0.3);
        border-radius: 4px;
    }
    
    .portfolio-grid::-webkit-scrollbar-thumb:hover {
        background: rgba(255, 255, 255, 0.5);
    }
}

/* 浅色主题滚动条 */
[data-theme="light"] .portfolio-grid::-webkit-scrollbar {
    width: 8px;
}

[data-theme="light"] .portfolio-grid::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 4px;
}

[data-theme="light"] .portfolio-grid::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.3);
    border-radius: 4px;
}

[data-theme="light"] .portfolio-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.5);
}

/* 无障碍访问优化 */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .background-animation,
    .background-particles {
        animation: none !important;
    }
}

/* 高对比度模式 */
@media (prefers-contrast: high) {
    :root {
        --glass-bg: rgba(255, 255, 255, 0.9);
        --glass-border: rgba(0, 0, 0, 0.3);
        --shadow-light: 0 2px 10px rgba(0, 0, 0, 0.3);
        --shadow-medium: 0 4px 20px rgba(0, 0, 0, 0.4);
        --shadow-heavy: 0 8px 40px rgba(0, 0, 0, 0.5);
    }
    
    [data-theme="dark"] {
        --glass-bg: rgba(0, 0, 0, 0.9);
        --glass-border: rgba(255, 255, 255, 0.3);
    }
    
    .btn-primary {
        background: var(--primary-color);
        border: 2px solid var(--primary-dark);
    }
    
    .btn-secondary {
        border: 2px solid var(--primary-color);
    }
}

