:root {
    /* 主色调系统 */
    --primary-color: #00ff88;
    --primary-color-dark: #00cc6e;
    --primary-color-light: #33ff99;
    --primary-color-rgb: 0, 255, 136;
    --secondary-color: #00ccff;
    --secondary-color-dark: #00a3cc;
    --secondary-color-light: #33d6ff;
    --secondary-color-rgb: 0, 204, 255;

    /* 语义化状态颜色 */
    --success-color: #10B981;
    --success-color-light: #34D399;
    --warning-color: #F59E0B;
    --warning-color-light: #FBBF24;
    --error-color: #EF4444;
    --error-color-light: #F87171;
    --info-color: #3B82F6;
    --info-color-light: #60A5FA;

    /* 背景色系统 */
    --bg-color: #0a192f;
    --bg-color-light: #112240;
    --bg-color-lighter: #1a2948;
    --card-bg: rgba(255, 255, 255, 0.05);
    --card-bg-hover: rgba(255, 255, 255, 0.08);
    --overlay-bg: rgba(10, 25, 47, 0.95);

    /* 文字颜色系统 */
    --text-color: #e6f1ff;
    --text-color-secondary: #a8b2d1;
    --text-color-muted: #8892b0;
    --text-color-inverse: #0a192f;

    /* 边框系统 */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-color-light: rgba(255, 255, 255, 0.15);
    --border-color-hover: var(--primary-color);
    --border-width: 1px;
    --border-style: solid;
    --border-radius: 10px;
    --border-radius-sm: 6px;
    --border-radius-lg: 16px;

    /* 阴影系统 */
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-primary: 0 0 20px rgba(var(--primary-color-rgb), 0.3);
    --shadow-secondary: 0 0 20px rgba(var(--secondary-color-rgb), 0.3);

    /* 动画缓动函数 */
    --ease-out-cubic: cubic-bezier(0.215, 0.61, 0.355, 1);
    --transition-speed: 0.3s;
    --transition-fast: 0.15s;
    --transition-slow: 0.5s;

    /* 间距系统 */
    --spacing-unit: 1rem;
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* 布局系统 */
    --max-width: 1200px;

    /* Z-index层级 */
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-tooltip: 1070;
}

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

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Segoe UI', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

header {
    background: var(--overlay-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: var(--border-width) var(--border-style) var(--border-color);
    padding: var(--spacing-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    transition: all var(--transition-speed) var(--ease-out-cubic);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

header.hidden {
    transform: translateY(-100%);
}

/* 添加滚动状态样式 */
header.scrolled {
    background: var(--bg-color);
    border-bottom-color: var(--border-color-light);
    box-shadow: var(--shadow-lg);
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    gap: var(--spacing-xl);
    padding: 0;
}

nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    position: relative;
    padding: var(--spacing-sm) 0;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    border-radius: var(--border-radius-sm);
}

nav a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(var(--primary-color-rgb), 0.1),
            rgba(var(--secondary-color-rgb), 0.1));
    border-radius: var(--border-radius-sm);
    transition: width var(--transition-speed) var(--ease-out-cubic);
    z-index: -1;
}

nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg,
            var(--primary-color),
            var(--secondary-color),
            var(--primary-color-light));
    border-radius: 2px;
    transition: width var(--transition-speed) var(--ease-out-cubic);
}

nav a:hover {
    color: var(--primary-color-light);
    transform: translateY(-2px);
}

nav a:hover::before {
    width: calc(100% + var(--spacing-md));
}

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

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

nav a.active::before {
    width: calc(100% + var(--spacing-md));
    background: linear-gradient(135deg,
            rgba(var(--primary-color-rgb), 0.15),
            rgba(var(--secondary-color-rgb), 0.15));
}

main {
    min-height: 100vh;
}

section {
    padding: calc(var(--spacing-unit) * 4) calc(var(--spacing-unit) * 2);
    max-width: var(--max-width);
    margin: 0 auto;
}

.profile-content {
    margin-top: var(--spacing-unit);
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

/* 头像容器样式优化 */
.avatar-container {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: transform var(--transition-speed) var(--ease-out-cubic);
}

/* 头像容器hover效果 - 使用旋转效果 */
.avatar-container:hover .avatar {
    transform: rotate(5deg);
}

.avatar-container:hover {
    transform: rotate(-2deg);
}

@keyframes rotate-border {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    transition: opacity var(--transition-speed) ease,
        transform var(--transition-speed) var(--ease-out-cubic);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}

/* 头像加载状态 */
.avatar.loading {
    opacity: 0;
}

.avatar.loaded {
    opacity: 1;
}

.avatar.error {
    opacity: 0;
}

/* 头像占位符 */
.avatar-placeholder {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    transition: opacity var(--transition-speed) ease;
}

/* 当头像加载成功时隐藏占位符 */
.avatar-container .avatar.loaded+.avatar-placeholder {
    opacity: 0;
}

/* 当头像加载失败时显示占位符 */
.avatar-container .avatar.error+.avatar-placeholder {
    opacity: 1;
}

/* 当头像正在加载时显示占位符 */
.avatar-container .avatar.loading+.avatar-placeholder {
    opacity: 1;
}

.info {
    flex: 1;
}

.info h3 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: var(--spacing-unit);
}

.info h4 {
    color: var(--primary-color);
    font-size: 1rem;
    margin-bottom: var(--spacing-unit);
}

.info ul {
    list-style: none;
    margin: var(--spacing-unit) 0;
    padding-left: 1.5rem;
}

.info li {
    position: relative;
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
}

.info li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.info p {
    margin-bottom: var(--spacing-unit);
    line-height: 1.8;
}

.info strong {
    color: var(--primary-color);
    font-weight: 600;
}

.info .info-grid {
    display: flex;
    align-items: flex-start;
    gap: 1.5rem;
    min-height: 200px;
    /* 确保有足够的高度 */
}

.info .info-grid .info-text {
    flex: 1;
    /* 占据剩余空间 */
    min-width: 0;
    /* 允许文字换行 */
}

.info .skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: var(--spacing-unit);
}

.info .skill-block {
    background: var(--card-bg);
    padding: var(--spacing-lg) var(--spacing-xl);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-speed) var(--ease-out-cubic);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.info .skill-block::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg,
            var(--primary-color),
            var(--secondary-color),
            var(--primary-color-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-speed) var(--ease-out-cubic);
}

.info .skill-block:hover {
    transform: translateY(-8px) scale(1.02);
    background: var(--card-bg-hover);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(var(--primary-color-rgb), 0.3), var(--shadow-lg);
}

.info .skill-block:hover::before {
    transform: scaleX(1);
}

.info .skill-block h4 {
    font-size: 1.1rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.info .skill-block ul {
    padding-left: 1.2rem;
    list-style: none;
}

.info .skill-block li {
    position: relative;
    padding-left: 1.2rem;
    margin-bottom: 0.6rem;
}

.info .skill-block li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem auto;
    padding: 0 1rem;
    max-width: 1200px;
}

.project-card {
    position: relative;
    overflow: hidden;
    background: var(--card-bg);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    height: 100%;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    display: block !important;
    box-shadow: var(--shadow-md);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg,
            rgba(var(--primary-color-rgb), 0.02),
            rgba(var(--secondary-color-rgb), 0.02));
    opacity: 0;
    transition: opacity var(--transition-speed) var(--ease-out-cubic);
    pointer-events: none;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: var(--border-width) var(--border-style) transparent;
    border-radius: var(--border-radius-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-speed) var(--ease-out-cubic);
    pointer-events: none;
}

.project-card:hover {
    transform: translateY(-12px) scale(1.03);
    background: var(--card-bg-hover);
    box-shadow: 0 20px 40px rgba(var(--primary-color-rgb), 0.4), var(--shadow-xl);
    border-color: var(--primary-color);
}

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

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

/* 卡片发光边框效果 */
.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px solid transparent;
    border-radius: var(--border-radius-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color)) border-box;
    -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-speed) var(--ease-out-cubic);
    pointer-events: none;
}

/* 项目状态标签 */
.project-status {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 2;
}

.project-status.completed,
.project-status.demo {
    background: linear-gradient(135deg, var(--success-color), var(--success-color-light));
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}

.project-status.in-progress {
    background: linear-gradient(135deg, var(--info-color), var(--info-color-light));
    box-shadow: 0 2px 8px rgba(59, 130, 246, 0.3);
}

.project-status.maintenance {
    background: linear-gradient(135deg, var(--warning-color), var(--warning-color-light));
    box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

/* 项目信息区域 */
.project-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    flex: 1;
}

.project-description {
    color: var(--text-color-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 技术标签 */
.tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin: var(--spacing-sm) 0;
}

.tech-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-sm);
    background: linear-gradient(135deg,
            rgba(var(--primary-color-rgb), 0.1),
            rgba(var(--secondary-color-rgb), 0.1));
    border: 1px solid rgba(var(--primary-color-rgb), 0.2);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--primary-color-light);
    transition: all var(--transition-fast) var(--ease-out-cubic);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.tech-tag:hover {
    background: linear-gradient(135deg,
            rgba(var(--primary-color-rgb), 0.2),
            rgba(var(--secondary-color-rgb), 0.2));
    border-color: var(--primary-color);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(var(--primary-color-rgb), 0.3);
}

.card-content a {
    align-self: flex-end;
    margin-top: auto;
    text-decoration: none;
    font-weight: bold;
    color: var(--link-color, #4ea1f3);
    transition: color 0.3s;
}

/* 图片预览模态框样式 */
.image-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    cursor: pointer;
    padding: 2rem;
}

.image-preview-modal .image-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.image-preview-modal img {
    max-width: 90%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--border-radius);
    cursor: grab;
    transition: transform 0.3s ease;
}

/* ==============================================
   加载状态和骨架屏系统
   ============================================== */

/* 骨架屏基础样式 */
.skeleton {
    background: linear-gradient(90deg,
            var(--card-bg) 25%,
            var(--card-bg-hover) 50%,
            var(--card-bg) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-sm);
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

/* 骨架屏文本行 */
.skeleton-text {
    height: 1rem;
    margin-bottom: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.skeleton-text.title {
    height: 1.5rem;
    width: 60%;
    margin-bottom: var(--spacing-md);
}

.skeleton-text.subtitle {
    height: 1.2rem;
    width: 80%;
    margin-bottom: var(--spacing-md);
}

.skeleton-text.line {
    height: 1rem;
    margin-bottom: var(--spacing-sm);
}

.skeleton-text.line:nth-child(1) {
    width: 100%;
}

.skeleton-text.line:nth-child(2) {
    width: 95%;
}

.skeleton-text.line:nth-child(3) {
    width: 85%;
}

.skeleton-text.line:last-child {
    width: 60%;
    margin-bottom: 0;
}

/* 骨架屏卡片 */
.skeleton-card {
    background: var(--card-bg);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    height: 300px;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.skeleton-card .skeleton-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.skeleton-card .skeleton-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    flex-shrink: 0;
}

.skeleton-card .skeleton-lines {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

/* 改进的加载动画 */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

.loading-spinner.large {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

.loading-spinner.small {
    width: 24px;
    height: 24px;
    border-width: 2px;
}

/* 现代加载动画 - 双环旋转 */
.loading-spinner-modern {
    width: 50px;
    height: 50px;
    position: relative;
    margin: 0 auto;
}

.loading-spinner-modern::before,
.loading-spinner-modern::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--primary-color);
    border-right-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin-modern 1.5s linear infinite;
}

.loading-spinner-modern::after {
    border-top-color: var(--secondary-color);
    border-right-color: var(--primary-color);
    animation-duration: 2s;
    animation-direction: reverse;
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
}

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

    100% {
        transform: rotate(360deg);
    }
}

@keyframes spin-modern {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* 脉冲加载动画 */
.loading-pulse {
    display: inline-block;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary-color);
    animation: pulse-dot 1.4s ease-in-out infinite both;
}

.loading-pulse:nth-child(1) {
    animation-delay: -0.32s;
}

.loading-pulse:nth-child(2) {
    animation-delay: -0.16s;
}

.loading-pulse:nth-child(3) {
    animation-delay: 0s;
}

@keyframes pulse-dot {

    0%,
    80%,
    100% {
        transform: scale(0);
    }

    40% {
        transform: scale(1);
    }
}

/* 加载状态容器优化 */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    color: var(--text-color-secondary);
    text-align: center;
    min-height: 200px;
    gap: var(--spacing-lg);
}

.loading-container .loading-text {
    font-size: 1rem;
    opacity: 0.8;
    margin: 0;
    animation: fade-in-out 2s ease-in-out infinite;
}

@keyframes fade-in-out {

    0%,
    100% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }
}

/* 错误状态样式 */
.error-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    text-align: center;
    min-height: 200px;
    gap: var(--spacing-lg);
}

.error-state .error-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--error-color), var(--error-color-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.error-state .error-title {
    color: var(--error-color);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.error-state .error-message {
    color: var(--text-color-secondary);
    font-size: 0.9rem;
    margin-bottom: var(--spacing-lg);
    max-width: 400px;
}

.error-state .retry-button {
    background: var(--primary-color);
    color: var(--text-color-inverse);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease-out-cubic);
}

.error-state .retry-button:hover {
    background: var(--primary-color-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 空状态样式 */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    text-align: center;
    min-height: 200px;
    gap: var(--spacing-lg);
    color: var(--text-color-muted);
}

.empty-state .empty-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--border-color), var(--border-color-light));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.6;
}

.empty-state .empty-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.empty-state .empty-message {
    font-size: 0.9rem;
    max-width: 400px;
}

/* ==============================================
   微交互增强系统
   ============================================== */

/* 按钮基础样式优化 */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    overflow: hidden;
    user-select: none;
    outline: none;
    min-height: 44px;
    /* 触摸目标最小尺寸 */
}

/* 现代按钮 - 渐变 + 发光效果 */
.btn-modern {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-color-light));
    color: var(--text-color-inverse);
    box-shadow: 0 0 20px rgba(var(--primary-color-rgb), 0.3);
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-modern:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 10px 30px rgba(var(--primary-color-rgb), 0.5);
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-modern:active {
    transform: translateY(-2px) scale(0.98);
}

/* 按钮状态变体 */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-color-light));
    color: var(--text-color-inverse);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-color-light));
    color: var(--text-color-inverse);
    box-shadow: var(--shadow-md);
}

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

.btn-ghost {
    background: var(--card-bg);
    color: var(--text-color);
    border: var(--border-width) var(--border-style) var(--border-color);
}

/* 按钮尺寸 */
.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8rem;
    min-height: 36px;
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.1rem;
    min-height: 52px;
}

/* 按钮悬停效果 */
.btn:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: var(--shadow-lg);
}

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

.btn-secondary:hover {
    background: linear-gradient(135deg, var(--secondary-color-light), var(--secondary-color));
    box-shadow: var(--shadow-lg), var(--shadow-secondary);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-color-inverse);
    border-color: var(--primary-color-light);
}

.btn-ghost:hover {
    background: var(--card-bg-hover);
    border-color: var(--border-color-light);
    color: var(--primary-color-light);
}

/* 按钮激活状态 */
.btn:active {
    transform: translateY(-1px) scale(0.98);
    transition-duration: var(--transition-fast);
}

/* 按钮禁用状态 */
.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.btn:disabled:hover {
    transform: none;
    box-shadow: none;
}

/* 按钮加载状态 */
.btn.loading {
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* 按钮成功状态 */
.btn.success {
    background: linear-gradient(135deg, var(--success-color), var(--success-color-light));
    color: white;
}

.btn.success::after {
    content: '✓';
    position: absolute;
    font-size: 1.2rem;
    animation: checkmark 0.5s ease-out;
}

@keyframes checkmark {
    0% {
        transform: scale(0) rotate(45deg);
        opacity: 0;
    }

    50% {
        transform: scale(1.2) rotate(45deg);
        opacity: 1;
    }

    100% {
        transform: scale(1) rotate(0deg);
        opacity: 1;
    }
}

/* 按钮错误状态 */
.btn.error {
    background: linear-gradient(135deg, var(--error-color), var(--error-color-light));
    color: white;
    animation: shake 0.5s ease-in-out;
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-4px);
    }

    75% {
        transform: translateX(4px);
    }
}

/* 涟漪效果 */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s ease-out, height 0.6s ease-out;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* 悬停放大效果 */
.hover-scale {
    transition: transform var(--transition-speed) var(--ease-out-cubic);
}

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

/* 悬停发光效果 */
.hover-glow {
    transition: all var(--transition-speed) var(--ease-out-cubic);
}

.hover-glow:hover {
    box-shadow: 0 0 30px rgba(var(--primary-color-rgb), 0.4);
}

/* 悬停旋转效果 */
.hover-rotate {
    transition: transform var(--transition-speed) var(--ease-out-cubic);
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

/* 悬停上移效果 */
.hover-lift {
    transition: all var(--transition-speed) var(--ease-out-cubic);
}

.hover-lift:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

/* 悬停波纹效果 */
.hover-wave {
    position: relative;
    overflow: hidden;
}

.hover-wave::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.1),
            transparent);
    transition: left 0.6s ease;
}

.hover-wave:hover::after {
    left: 100%;
}

/* 焦点指示器增强 */
.focus-ring {
    outline: none;
    position: relative;
}

.focus-ring:focus-visible::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 2px solid var(--primary-color);
    border-radius: calc(var(--border-radius) + 3px);
    opacity: 0.8;
    animation: focus-pulse 1.5s ease-in-out infinite;
}

@keyframes focus-pulse {

    0%,
    100% {
        opacity: 0.8;
        transform: scale(1);
    }

    50% {
        opacity: 0.4;
        transform: scale(1.02);
    }
}

/* 提示气泡 */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-color-lighter);
    color: var(--text-color);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    pointer-events: none;
    z-index: var(--z-tooltip);
    border: var(--border-width) var(--border-style) var(--border-color);
    box-shadow: var(--shadow-lg);
}

.tooltip::after {
    content: '';
    position: absolute;
    bottom: 115%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--bg-color-lighter);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    pointer-events: none;
    z-index: var(--z-tooltip);
}

.tooltip:hover::before,
.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-3px);
}

/* 进度条动画 */
.progress-bar {
    width: 100%;
    height: 6px;
    background: var(--border-color);
    border-radius: 3px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    transition: width 0.8s var(--ease-out-cubic);
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg,
            transparent 0%,
            rgba(255, 255, 255, 0.3) 50%,
            transparent 100%);
    transform: translateX(-100%);
    animation: progress-shine 2s ease-in-out infinite;
}

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

    100% {
        transform: translateX(200%);
    }
}

.links-grid .loading-container {
    grid-column: 1 / -1;
    width: 100%;
}

/* 优化图片容器的加载状态 */
.image-container {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-radius: calc(var(--border-radius) / 2);
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
    opacity: 0;
}

.image-container img.loaded {
    opacity: 1;
}

.image-container img.loading {
    opacity: 0.7;
}

.image-container img.error {
    opacity: 0;
}

/* 添加更丰富的动画效果 */
@keyframes bounce {
    0% {
        transform: translateY(0) scale(1);
    }

    50% {
        transform: translateY(-5px) scale(1.05);
    }

    100% {
        transform: translateY(0) scale(1);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}



/* 图片占位符 */
.image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    transition: opacity 0.3s ease;
    flex-direction: column;
    gap: 0.5rem;
    backdrop-filter: blur(2px);
}

.image-placeholder .placeholder-icon {
    font-size: 1.5rem;
    /* 减小图标尺寸 */
    color: var(--primary-color);
    opacity: 0.7;
    animation: pulse 2s infinite;
}

/* .image-placeholder .placeholder-text {
    font-size: 0.85rem;
    color: var(--text-color-secondary);
    text-align: center;
    max-width: 80%;
} */

.image-placeholder.loading {
    background: linear-gradient(90deg,
            rgba(255, 255, 255, 0.05) 25%,
            rgba(255, 255, 255, 0.1) 50%,
            rgba(255, 255, 255, 0.05) 75%);
    background-size: 200% 100%;
    animation: shimmer 2s infinite linear;
}

.image-placeholder.loading .placeholder-icon {
    animation: float 3s ease-in-out infinite;
}

.image-placeholder.error {
    background: rgba(255, 255, 255, 0.05);
    /* 恢复正常背景 */
    border: var(--border-width) var(--border-style) var(--border-color);
    /* 恢复正常边框 */
    border-radius: 8px;
    /* 保持圆角边框 */
}

.image-placeholder.error .placeholder-icon {
    color: var(--error-color);
    opacity: 1;
    /* 保持不透明度 */
    animation: bounce 0.5s ease-in-out forwards;
    /* 恢复原来的弹跳动画 */
    font-size: 2rem;
    /* 保持图标尺寸 */
}

/* .image-placeholder.error .placeholder-text {
    color: var(--error-color-light);
} */

.image-container img.loaded+.image-placeholder {
    opacity: 0;
}

.image-container img.loading+.image-placeholder {
    opacity: 1;
}

.image-container img.error+.image-placeholder {
    opacity: 1;
}

/* 错误状态样式 */
.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-color);
    text-align: center;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.retry-button {
    background: var(--primary-color);
    color: var(--bg-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: bold;
    margin-top: 1rem;
    transition: background-color var(--transition-speed) ease;
}

.retry-button:hover {
    background: var(--secondary-color);
}

/* 空状态样式 */
.empty-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-color);
    text-align: center;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

/* 初始化错误样式 */
.init-error {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.error-content {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius);
    border: var(--border-width) var(--border-style) var(--border-color);
}

.error-content h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

/* 图片加载完成效果 */
img.loaded {
    opacity: 1;
    transform: scale(1);
}

img.loading {
    opacity: 0.7;
    transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

img.error {
    opacity: 0;
    transform: scale(0.9);
}

/* 头像容器加载动画 */
.avatar-container .avatar.loading+.avatar-placeholder {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.6;
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

/* 确保文字内容始终可见 */
.info-text {
    opacity: 1;
    visibility: visible;
}

/* 防止布局偏移 */
.info-grid {
    align-items: flex-start;
}

.info-grid .avatar-container {
    flex-shrink: 0;
}

.info-grid .info-text {
    flex-grow: 1;
    min-width: 0;
}

.image-preview-modal img {
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    transition: transform 0.1s ease;
    user-select: none;
    -webkit-user-drag: none;
}

.image-preview-modal img:active {
    cursor: grabbing;
}


.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    border-color: transparent;
}

@supports (backdrop-filter: blur(10px)) {
    .project-card {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
}

.card-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.project-card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background-color: #fff;
    border-radius: calc(var(--border-radius) / 2);
    border: var(--border-width) var(--border-style) var(--border-color);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.project-card img.loaded {
    opacity: 1;
}

.project-card h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin: 0;
}

.project-card p {
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
    flex-grow: 1;
    margin: 0;
}

.project-card a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
    padding: 0.25rem 0;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    margin-top: auto;
    align-self: flex-end;
    position: relative;
    width: fit-content;
}

.project-card a::after {
    display: none;
}

.project-card a:hover {
    color: var(--primary-color);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem auto;
    padding: 0 1rem;
    max-width: 1200px;
    justify-content: center;
}

/* PC端快捷链接宽度优化 - 小屏PC (992px-1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }
}

/* PC端快捷链接宽度优化 - 中屏PC (1200px-1399px) */
@media (min-width: 1200px) and (max-width: 1399px) {
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }

    .link-card {
        padding: 1.3rem;
    }

    .link-card .image-container {
        width: 60px;
        height: 60px;
        margin-bottom: 0.8rem;
    }

    .link-card span {
        font-size: 0.88rem;
        line-height: 1.3;
    }
}

/* PC端快捷链接宽度优化 - 大屏PC (1400px以上) */
@media (min-width: 1400px) {
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        max-width: 1400px;
    }

    .link-card {
        padding: 1.2rem;
    }

    .link-card .image-container {
        width: 56px;
        height: 56px;
        margin-bottom: 0.8rem;
    }

    .link-card span {
        font-size: 0.85rem;
        line-height: 1.3;
    }
}

.link-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    transition: all var(--transition-speed) ease;
    text-align: center;
    height: 100%;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.link-card:hover {
    transform: translateY(-8px) scale(1.02);
    border-color: var(--primary-color);
    box-shadow: 0 15px 30px rgba(var(--primary-color-rgb), 0.3);
}

.link-card .image-container {
    width: 64px;
    /* 恢复图片容器尺寸 */
    height: 64px;
    /* 恢复图片容器尺寸 */
    margin-bottom: 1rem;
}

.link-card img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
}

.link-card span {
    font-weight: 600;
    font-size: 0.9rem;
    line-height: 1.4;
}

/* 项目卡片图片容器优化 */
.project-card .image-container {
    height: 180px;
    /* 稍微减小项目图片高度 */
}

/* 奖项卡片图片容器优化 */
.award-card .image-container {
    height: 160px;
    /* 稍微减小奖项图片高度 */
}

footer {
    background: rgba(10, 25, 47, 0.95);
    padding: calc(var(--spacing-unit) * 4) calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 4);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    cursor: default;
}

.contact-list {
    list-style: none;
}

.contact-list li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.contact-list i {
    color: var(--secondary-color);
    width: 20px;
}

.contact-list a {
    color: var(--text-color);
    text-decoration: none;
    transition: color var(--transition-speed) ease;
}

.contact-list a:hover {
    color: var(--primary-color);
}

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

.social-links a {
    color: var(--text-color);
    font-size: 1.5rem;
    transition: all var(--transition-speed) ease;
}

.social-links a:hover {
    color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: calc(var(--spacing-unit) * 2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

#typed-text {
    color: var(--primary-color);
}

.typed-cursor {
    color: var(--primary-color);
}

@media (max-width: 1200px) {
    :root {
        --spacing-unit: 0.9rem;
    }

    .projects-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --spacing-unit: 0.8rem;
    }

    /* 优化触摸目标大小 */
    nav a {
        padding: 10px 8px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .profile-content {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .avatar-container {
        width: 150px;
        height: 150px;
    }

    .info .info-grid {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 1rem;
    }

    .info .info-grid .info-text {
        margin-left: 0;
    }

    .info ul {
        padding-left: 0;
    }

    .info li {
        padding-left: 0;
    }

    .info li::before {
        display: none;
    }

    .projects-grid {
        display: grid !important;
        grid-template-columns: 1fr;
        padding: 0 1rem;
        gap: 1rem;
        width: 100%;
        margin: 1rem auto;
        justify-items: center;
    }

    .project-card {
        display: block !important;
        margin: 0 auto;
        width: 100%;
        max-width: 100%;
        min-height: auto;
        opacity: 1 !important;
        transform: none !important;
        /* 优化触摸反馈 */
        -webkit-tap-highlight-color: rgba(0, 255, 136, 0.1);
    }

    .project-card img {
        height: 150px;
    }

    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 1rem;
        margin: 1rem auto;
        justify-items: center;
    }

    .project-card,
    .link-card {
        margin: 0 auto;
        width: 100%;
        max-width: 320px;
    }

    #particles-js {
        opacity: 0.3;
    }

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .contact-list li {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }

    .social-links a {
        /* 优化触摸目标大小 */
        padding: 12px;
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    nav ul {
        gap: 1rem;
    }

    .project-card:hover {
        transform: none;
        border-color: var(--primary-color);
    }

    .project-card::before {
        display: none;
    }
}

@media print {
    body {
        background: white;
        color: black;
    }

    header,
    footer,
    #particles-js {
        display: none;
    }

    .project-card,
    .link-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin: 2rem auto;
    padding: 0 1rem;
    max-width: 1200px;
}

.award-card {
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.05);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: var(--border-radius);
    padding: calc(var(--spacing-unit) * 1.5);
    height: 100%;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.award-card .card-content {
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
}

.award-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: var(--border-width) var(--border-style) var(--border-hover-color);
    border-radius: var(--border-radius);
    opacity: 0;
    transition: opacity var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
}

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

.award-card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 20px 40px rgba(var(--primary-color-rgb), 0.3), 0 10px 20px rgba(0, 0, 0, 0.2);
    border-color: var(--primary-color);
}

@supports (backdrop-filter: blur(10px)) {
    .award-card {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
    }
}

.award-card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background-color: #fff;
    border-radius: calc(var(--border-radius) / 2);
    border: var(--border-width) var(--border-style) var(--border-color);
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0;
}

.award-card img.loaded {
    opacity: 1;
}

.award-card h3 {
    color: var(--primary-color);
    font-size: 1.4rem;
    margin: 0;
}

.award-card p {
    color: var(--text-color);
    opacity: 0.9;
    line-height: 1.6;
    flex-grow: 1;
    margin: 0;
    margin-bottom: 0.5rem;
}

.award-card .award-date {
    color: var(--secondary-color);
    font-size: 0.9rem;
    text-align: right;
    margin-top: auto;
}

@media (max-width: 768px) {
    .awards-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
        gap: 1rem;
        margin: 1rem auto;
        justify-items: center;
    }

    .award-card {
        margin: 0 auto;
        width: 100%;
        max-width: 320px;
    }

    .award-card img {
        height: 150px;
    }

    .award-card:hover {
        transform: none;
        border-color: var(--primary-color);
    }

    .award-card::before {
        display: none;
    }
}

.admin-btn {
    display: none;
}

/* 图片容器样式 */
.image-container {
    position: relative;
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-radius: calc(var(--border-radius) / 2);
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
}

.image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: all 0.3s ease;
    opacity: 0;
}

.image-container img.loaded {
    opacity: 1;
}

.image-container img.loading {
    opacity: 0.7;
}

.image-container img.error {
    opacity: 0;
}

/* 图片占位符 */
.image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    transition: opacity 0.3s ease;
}

.image-container img.loaded+.image-placeholder {
    opacity: 0;
}

.image-container img.loading+.image-placeholder {
    opacity: 1;
}

.image-container img.error+.image-placeholder {
    opacity: 1;
}

/* 加载动画 */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

    100% {
        transform: rotate(360deg);
    }
}

/* 技能网格优化 */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: var(--spacing-unit);
    animation: fadeInUp 0.6s ease-out;
}

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

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 响应式优化 */
@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .skill-block {
        padding: 1rem;
    }

    .info-grid {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .avatar-container {
        margin-bottom: 1rem;
    }

    .projects-grid,
    .awards-grid,
    .links-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 0 0.5rem;
        justify-items: center;
    }

    .image-container {
        height: 150px;
    }
}

@media (max-width: 480px) {
    .skill-block h4 {
        font-size: 1rem;
    }

    .skill-block li {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .project-card,
    .award-card,
    .link-card {
        padding: 1rem;
    }
}

/* 性能优化 */
.project-card,
.award-card,
.link-card {
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

/* 平滑滚动优化 */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
    /* 为固定导航栏留出空间 */
}

/* 焦点样式优化 */
a:focus,
button:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 减少重绘和重排 */
.project-card,
.award-card,
.link-card,
.skill-block {
    transform: translateZ(0);
    backface-visibility: hidden;
}

/* 加载状态优化 */
.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-color);
}

.loading-spinner {
    margin-bottom: 1rem;
}

/* 错误状态优化 */
.error-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-color);
    text-align: center;
}

.error-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #ff6b6b;
}

.retry-button {
    background: var(--primary-color);
    color: var(--bg-color);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: bold;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.retry-button:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
}

/* 空状态优化 */
.empty-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    color: var(--text-color);
    text-align: center;
}

.empty-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

/* 链接选择模态框样式 */
.link-selection-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    transition: opacity 0.3s ease;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
}

.modal-content {
    position: relative;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    width: 90%;
    max-width: 400px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.modal-content h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.modal-content h3 storage {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.link-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.link-list li {
    margin-bottom: 1rem;
}

.link-list a {
    display: block;
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
}

.link-list a:hover {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.close-modal-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

.select-link-btn {
    background: none;
    border: none;
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: bold;
    padding: 0.25rem 0;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    margin-top: 0.5rem;
    position: relative;
    width: fit-content;
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
}

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

.project-card .select-link-btn {
    margin-top: auto;
    align-self: flex-end;
}

/* --- 优化的图片预览样式 --- */

/* ==============================================
   图片预览模态框样式
   ============================================== */

/* 模态框背景 */
.image-preview-modal {
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

/* 打开时淡入 */
.image-preview-modal.open {
    opacity: 1;
}

/* 预览图片容器 */
.image-preview-modal .image-container {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

/* 预览图片样式 */
.image-preview-modal img {
    max-width: 100vw;
    max-height: 100vh;
    border-radius: 12px;
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.image-preview-modal img.loaded {
    opacity: 1;
    transform: scale(1);
}

.image-preview-modal img.error {
    opacity: 0;
}

.image-preview-modal img:active {
    cursor: grabbing;
}

/* 加载动画 (Spinner) */
.image-preview-modal .loading-spinner {
    position: absolute;
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    z-index: -1;
    /* 放在图片后面 */
}

/* 图片预览错误状态 */
.image-preview-modal .error-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    color: #ff6b6b;
    text-align: center;
    z-index: 2;
    background: rgba(0, 0, 0, 0.7);
    padding: 2rem;
    border-radius: var(--border-radius);
    max-width: 80%;
}

.image-preview-modal .error-message i {
    font-size: 3rem;
    opacity: 0.8;
}

.image-preview-modal .error-message span {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.image-preview-modal .retry-button {
    background: var(--primary-color);
    color: var(--text-color-inverse);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease-out-cubic);
}

.image-preview-modal .retry-button:hover {
    background: var(--primary-color-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* 关闭按钮 */
.image-preview-modal .close-button {
    position: absolute;
    padding-bottom: 22px;
    top: 2rem;
    right: 2rem;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-color);
    font-size: 2rem;
    line-height: 38px;
    text-align: center;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    cursor: pointer;
    z-index: 2001;
    transition: all 0.3s ease;
    user-select: none;
}

.image-preview-modal .close-button:hover {
    background: rgba(0, 255, 136, 0.2);
    border-color: var(--border-hover-color);
    transform: scale(1.1);
}

/* 通知系统样式 */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    max-width: 400px;
    min-width: 300px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    animation: slideInRight 0.3s ease-out;
    font-family: inherit;
}

.notification-error {
    border-color: #ff6b6b;
    background: linear-gradient(135deg, rgba(255, 107, 107, 0.1), rgba(255, 107, 107, 0.05));
}

.notification-warning {
    border-color: #ffa726;
    background: linear-gradient(135deg, rgba(255, 167, 38, 0.1), rgba(255, 167, 38, 0.05));
}

.notification-info {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(0, 255, 136, 0.1), rgba(0, 255, 136, 0.05));
}

.notification-content {
    display: flex;
    align-items: center;
    padding: 1rem;
    gap: 0.75rem;
}

.notification-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.notification-error .notification-icon {
    color: #ff6b6b;
}

.notification-warning .notification-icon {
    color: #ffa726;
}

.notification-info .notification-icon {
    color: var(--primary-color);
}

.notification-message {
    flex: 1;
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.4;
}

.notification-close {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
    opacity: 0.7;
    flex-shrink: 0;
}

.notification-close:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.1);
}

.notification-close i {
    font-size: 0.8rem;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* 图片错误消息样式 */
.error-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: #ff6b6b;
    text-align: center;
    font-size: 0.8rem;
    z-index: 2;
}

.error-message i {
    font-size: 1.5rem;
    opacity: 0.8;
}

.error-message span {
    opacity: 0.9;
}

/* 初始化错误样式 */
.init-error {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 25, 47, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10001;
    backdrop-filter: blur(10px);
}

.error-content {
    background: var(--bg-color);
    border: 1px solid #ff6b6b;
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.error-content h3 {
    color: #ff6b6b;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.error-content p {
    color: var(--text-color);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.error-content details {
    text-align: left;
    margin: 1rem 0;
}

.error-content summary {
    cursor: pointer;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.error-content pre {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 5px;
    overflow: auto;
    max-height: 200px;
    font-size: 0.8rem;
    color: #ccc;
}

/* 移动端通知优化 */
@media (max-width: 768px) {
    .notification {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
        min-width: auto;
    }

    .notification-content {
        padding: 0.75rem;
    }

    .notification-message {
        font-size: 0.85rem;
    }

    .error-content {
        padding: 1.5rem;
        margin: 1rem;
    }

    .error-content h3 {
        font-size: 1.25rem;
    }
}

/* ==============================================
   响应式设计优化
   ============================================== */

/* 超小屏适配 (320px - 420px) */
@media (max-width: 420px) {
    :root {
        --spacing-unit: 0.8rem;
        --spacing-sm: 0.4rem;
        --spacing-md: 0.8rem;
        --spacing-lg: 1.2rem;
        --spacing-xl: 1.6rem;
        --border-radius: 8px;
    }

    html {
        font-size: 14px;
    }

    header {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    nav ul {
        gap: var(--spacing-sm);
        flex-wrap: wrap;
        justify-content: center;
    }

    nav a {
        font-size: 0.85rem;
        padding: var(--spacing-xs) 0;
    }

    section {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .profile-content {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-lg);
    }

    .avatar-container {
        width: 150px;
        height: 150px;
    }

    .info .info-grid {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--spacing-lg);
    }

    .info .skills-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }

    .info .skill-block {
        padding: var(--spacing-md);
    }

    .projects-grid,
    .awards-grid,
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: var(--spacing-md);
        padding: 0 var(--spacing-sm);
    }

    .project-card,
    .award-card,
    .link-card {
        padding: var(--spacing-md);
        margin: 0;
    }

    .footer-content {
        padding: var(--spacing-lg) var(--spacing-md);
    }

    .footer-section h4 {
        font-size: 1rem;
    }

    .social-links a {
        min-width: 48px;
        min-height: 48px;
        padding: var(--spacing-md);
    }
}

/* 中小屏幕优化 (421px - 768px) */
@media (min-width: 421px) and (max-width: 768px) {
    .info .skills-grid {
        grid-template-columns: 1fr;
    }

    .projects-grid,
    .awards-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
}

/* 折叠屏支持 */
@media (max-width: 768px) and (orientation: landscape) {
    .profile-content {
        flex-direction: row;
        align-items: flex-start;
    }

    .avatar-container {
        width: 120px;
        height: 120px;
    }

    .info .info-grid {
        flex-direction: row;
        text-align: left;
    }

    section {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

/* 触摸体验优化 */
@media (hover: none) and (pointer: coarse) {

    .btn,
    .project-card,
    .award-card,
    .link-card,
    .social-links a {
        -webkit-tap-highlight-color: rgba(var(--primary-color-rgb), 0.2);
        touch-action: manipulation;
    }

    .project-card:hover,
    .award-card:hover,
    .info .skill-block:hover {
        transform: none;
        box-shadow: var(--shadow-md);
    }

    .project-card:active,
    .award-card:active,
    .link-card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }

    .btn {
        min-height: 48px;
        padding: var(--spacing-md) var(--spacing-lg);
    }

    nav a {
        padding: var(--spacing-md) var(--spacing-sm);
        min-height: 44px;
        display: flex;
        align-items: center;
    }

    .social-links a {
        min-width: 48px;
        min-height: 48px;
        padding: var(--spacing-md);
    }

    html {
        scroll-behavior: auto;
    }
}

/* ==============================================
   导航体验优化
   ============================================== */

/* 面包屑导航 */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-color-secondary);
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.breadcrumb-item a {
    color: var(--text-color-secondary);
    text-decoration: none;
    transition: color var(--transition-speed) var(--ease-out-cubic);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
}

.breadcrumb-item a:hover {
    color: var(--primary-color);
    background: rgba(var(--primary-color-rgb), 0.1);
}

.breadcrumb-item.active {
    color: var(--primary-color);
    font-weight: 500;
}

.breadcrumb-separator {
    color: var(--text-color-muted);
    font-size: 0.8rem;
    user-select: none;
}

/* 滚动进度指示器 */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--border-color);
    z-index: var(--z-fixed);
    opacity: 0;
    transition: opacity var(--transition-speed) var(--ease-out-cubic);
}

.scroll-progress.visible {
    opacity: 1;
}

.scroll-progress-bar {
    height: 100%;
    background: linear-gradient(90deg,
            var(--primary-color),
            var(--secondary-color),
            var(--primary-color-light));
    width: 0%;
    transition: width 0.1s ease-out;
    position: relative;
}

.scroll-progress-bar::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 20px;
    height: 100%;
    background: linear-gradient(90deg,
            transparent,
            rgba(255, 255, 255, 0.5));
    transform: translateX(10px);
    opacity: 0.8;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: var(--spacing-xl);
    right: var(--spacing-xl);
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-color-light));
    color: var(--text-color-inverse);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg), var(--shadow-primary);
    transition: all var(--transition-speed) var(--ease-out-cubic);
    z-index: var(--z-fixed);
    opacity: 0;
    visibility: hidden;
    transform: translateY(100px) scale(0.8);
}

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

.back-to-top:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: var(--shadow-xl), var(--shadow-primary);
    background: linear-gradient(135deg, var(--primary-color-light), var(--secondary-color));
}

.back-to-top:active {
    transform: translateY(-2px) scale(1.05);
    transition-duration: var(--transition-fast);
}

/* 添加进度环 */
.back-to-top::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    border: 2px solid transparent;
    border-radius: 50%;
    background: conic-gradient(from 0deg, var(--primary-color), transparent);
    -webkit-mask: radial-gradient(farthest-side, transparent calc(100% - 4px), white calc(100% - 2px));
    mask: radial-gradient(farthest-side, transparent calc(100% - 4px), white calc(100% - 2px));
    animation: progress-ring 2s linear infinite;
    opacity: 0.6;
}

@keyframes progress-ring {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* 智能导航提示 */
.navigation-hint {
    position: fixed;
    top: 50%;
    right: var(--spacing-lg);
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    z-index: var(--z-fixed);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) var(--ease-out-cubic);
}

.navigation-hint.visible {
    opacity: 1;
    visibility: visible;
}

.navigation-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    cursor: pointer;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    position: relative;
}

.navigation-dot.active {
    background: var(--primary-color);
    transform: scale(1.3);
    box-shadow: 0 0 12px rgba(var(--primary-color-rgb), 0.5);
}

.navigation-dot:hover {
    background: var(--primary-color-light);
    transform: scale(1.2);
}

.navigation-dot::before {
    content: attr(data-section);
    position: absolute;
    right: calc(100% + var(--spacing-md));
    top: 50%;
    transform: translateY(-50%);
    background: var(--bg-color-lighter);
    color: var(--text-color);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    pointer-events: none;
    border: var(--border-width) var(--border-style) var(--border-color);
    box-shadow: var(--shadow-md);
}

.navigation-dot:hover::before {
    opacity: 1;
    visibility: visible;
    transform: translateY(-50%) translateX(-4px);
}

/* 键盘导航提示 */
.keyboard-hint {
    position: fixed;
    bottom: var(--spacing-xl);
    left: var(--spacing-xl);
    background: var(--card-bg);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.8rem;
    color: var(--text-color-secondary);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.keyboard-hint.visible {
    opacity: 1;
    visibility: visible;
}

.keyboard-hint kbd {
    background: var(--bg-color-lighter);
    border: var(--border-width) var(--border-style) var(--border-color-light);
    border-radius: 3px;
    padding: 2px 6px;
    font-family: monospace;
    font-size: 0.75rem;
    color: var(--primary-color);
    margin: 0 2px;
}

/* 导航状态指示 */
.nav-status {
    position: fixed;
    top: 50%;
    left: var(--spacing-lg);
    transform: translateY(-50%);
    writing-mode: vertical-rl;
    text-orientation: mixed;
    font-size: 0.8rem;
    color: var(--text-color-muted);
    z-index: var(--z-fixed);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-speed) var(--ease-out-cubic);
}

.nav-status.visible {
    opacity: 1;
    visibility: visible;
}

.nav-status-item {
    padding: var(--spacing-sm) 0;
    transition: color var(--transition-speed) var(--ease-out-cubic);
}

.nav-status-item.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* 移动端导航优化 */
@media (max-width: 768px) {
    .breadcrumb {
        font-size: 0.8rem;
        padding: var(--spacing-sm) 0;
        margin-bottom: var(--spacing-md);
    }

    .back-to-top {
        width: 48px;
        height: 48px;
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        font-size: 1rem;
    }

    .navigation-hint,
    .nav-status {
        opacity: 0 !important;
        visibility: hidden !important;
    }

    .keyboard-hint {
        bottom: var(--spacing-lg);
        left: var(--spacing-md);
        font-size: 0.75rem;
    }

    .scroll-progress {
        height: 2px;
    }
}

/* 横屏模式优化 */
@media (orientation: landscape) and (max-height: 500px) {
    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        font-size: 0.9rem;
    }

    .keyboard-hint {
        bottom: var(--spacing-md);
        left: var(--spacing-md);
        padding: var(--spacing-xs) var(--spacing-sm);
    }
}

/* ==============================================
   主题系统
   ============================================== */

/* 浅色主题变量 */
[data-theme="light"] {
    --bg-color: #ffffff;
    --bg-color-light: #f8fafc;
    --bg-color-lighter: #f1f5f9;
    --card-bg: rgba(15, 23, 42, 0.05);
    --card-bg-hover: rgba(15, 23, 42, 0.08);
    --overlay-bg: rgba(255, 255, 255, 0.95);

    --text-color: #0f172a;
    --text-color-secondary: #475569;
    --text-color-muted: #64748b;
    --text-color-inverse: #ffffff;

    --border-color: rgba(15, 23, 42, 0.1);
    --border-color-light: rgba(15, 23, 42, 0.15);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

/* 主题切换按钮 */
.theme-toggle {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 56px;
    height: 32px;
    background: var(--card-bg);
    border: var(--border-width) var(--border-style) var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    padding: 4px;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    z-index: var(--z-fixed);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-md);
}

.theme-toggle:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-lg), 0 0 20px rgba(var(--primary-color-rgb), 0.2);
}

.theme-toggle-slider {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    transition: all var(--transition-speed) var(--ease-out-cubic);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color-inverse);
    font-size: 0.8rem;
    position: relative;
}

[data-theme="light"] .theme-toggle-slider {
    transform: translateX(24px);
}

[data-theme="dark"] .theme-toggle-slider {
    transform: translateX(0);
}

/* 主题切换动画 */
.theme-transition {
    transition: background-color var(--transition-slow) var(--ease-out-cubic),
        color var(--transition-slow) var(--ease-out-cubic),
        border-color var(--transition-slow) var(--ease-out-cubic),
        box-shadow var(--transition-slow) var(--ease-out-cubic);
}

/* 移动端主题切换优化 */
@media (max-width: 768px) {
    .theme-toggle {
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: 48px;
        height: 28px;
    }

    .theme-toggle-slider {
        width: 20px;
        height: 20px;
        font-size: 0.7rem;
    }

    [data-theme="light"] .theme-toggle-slider {
        transform: translateX(20px);
    }
}

/* ============================================
   现代化美化效果 - 增强版
   ============================================ */

/* 按钮发光效果 */
.btn-modern::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none;
}

.btn-modern:active::after {
    width: 300px;
    height: 300px;
}

/* 链接卡片图标动画 */
.link-card i {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s cubic-bezier(0.215, 0.61, 0.355, 1);
    color: var(--primary-color);
}

.link-card:hover i {
    transform: scale(1.2) rotate(10deg);
    filter: drop-shadow(0 0 10px rgba(var(--primary-color-rgb), 0.5));
}

/* 项目卡片标题增强 */
.project-card h3 {
    position: relative;
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.project-card:hover h3 {
    filter: drop-shadow(0 0 8px rgba(var(--primary-color-rgb), 0.4));
}

/* 奖项卡片标题增强 */
.award-card h3 {
    color: var(--primary-color);
    text-shadow: 0 0 10px rgba(var(--primary-color-rgb), 0.2);
    transition: all 0.3s ease;
}

.award-card:hover h3 {
    text-shadow: 0 0 20px rgba(var(--primary-color-rgb), 0.5);
}

/* 技能块标签增强 */
.skill-tag {
    display: inline-block;
    background: linear-gradient(135deg, rgba(var(--primary-color-rgb), 0.2), rgba(var(--secondary-color-rgb), 0.2));
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    margin: 0.3rem;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.skill-tag:hover {
    background: linear-gradient(135deg, rgba(var(--primary-color-rgb), 0.4), rgba(var(--secondary-color-rgb), 0.4));
    box-shadow: 0 0 15px rgba(var(--primary-color-rgb), 0.3);
    transform: scale(1.05);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 焦点环增强 */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* 选中文本增强 */
::selection {
    background: var(--primary-color);
    color: var(--text-color-inverse);
}

/* ============================================
   移动端增强效果
   ============================================ */

@media (max-width: 768px) {

    /* 移动端按钮增强 */
    .btn-modern {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
        min-height: 48px;
        border-radius: 12px;
        box-shadow: 0 0 15px rgba(var(--primary-color-rgb), 0.2);
        transition: all 0.2s ease;
    }

    .btn-modern:active {
        transform: scale(0.95);
        box-shadow: 0 0 10px rgba(var(--primary-color-rgb), 0.3);
    }

    .btn-modern:hover {
        transform: scale(1.02);
        box-shadow: 0 0 20px rgba(var(--primary-color-rgb), 0.4);
    }

    /* 移动端卡片优化 */
    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        border-radius: 16px;
        padding: 1.25rem;
        transition: all 0.25s cubic-bezier(0.215, 0.61, 0.355, 1);
    }

    .project-card:active,
    .award-card:active,
    .link-card:active,
    .skill-block:active {
        transform: scale(0.98);
    }

    .project-card:hover,
    .award-card:hover,
    .link-card:hover,
    .skill-block:hover {
        transform: translateY(-8px) scale(1.02);
    }

    /* 移动端链接卡片图标 */
    .link-card i {
        font-size: 2rem;
        transition: all 0.2s ease;
    }

    .link-card:active i {
        transform: scale(0.9);
    }

    .link-card:hover i {
        transform: scale(1.15) rotate(5deg);
    }

    /* 移动端导航增强 */
    nav a {
        position: relative;
        overflow: hidden;
        transition: all 0.3s ease;
    }

    nav a::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(var(--primary-color-rgb), 0.2), transparent);
        transition: left 0.5s ease;
    }

    nav a:active::before {
        left: 100%;
    }

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

    /* 移动端表单优化 */
    input[type="text"],
    input[type="email"],
    input[type="password"],
    input[type="number"],
    textarea,
    select {
        font-size: 16px;
        padding: 0.75rem 1rem;
        border-radius: 12px;
        transition: all 0.2s ease;
    }

    input[type="text"]:focus,
    input[type="email"]:focus,
    input[type="password"]:focus,
    input[type="number"]:focus,
    textarea:focus,
    select:focus {
        border-color: var(--primary-color);
        box-shadow: 0 0 15px rgba(var(--primary-color-rgb), 0.2);
        transform: scale(1.01);
    }

    /* 移动端加载动画 */
    .loading-spinner-modern {
        width: 40px;
        height: 40px;
    }

    /* 移动端标题增强 */
    h1,
    h2,
    h3,
    h4,
    h5,
    h6 {
        transition: all 0.3s ease;
    }

    section h2 {
        font-size: 1.75rem;
        margin-bottom: 1.5rem;
        position: relative;
        padding-bottom: 0.75rem;
    }

    section h2::after {
        content: '';
        position: absolute;
        bottom: 0;
        left: 0;
        width: 40px;
        height: 3px;
        background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
        border-radius: 2px;
        transition: width 0.3s ease;
    }

    /* 移动端网格优化 */
    .projects-grid,
    .awards-grid,
    .links-grid {
        gap: 1rem;
        padding: 0 0.75rem;
    }

    /* 移动端间距优化 */
    section {
        padding: 2rem 1rem;
    }

    main {
        padding: 1rem 0;
    }

    /* 移动端阴影优化 */
    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    }

    .project-card:hover,
    .award-card:hover,
    .link-card:hover,
    .skill-block:hover {
        box-shadow: 0 12px 24px rgba(var(--primary-color-rgb), 0.25);
    }

    /* 移动端返回顶部按钮增强 */
    .back-to-top {
        width: 52px;
        height: 52px;
        border-radius: 50%;
        background: linear-gradient(135deg, var(--primary-color), var(--primary-color-light));
        box-shadow: 0 4px 12px rgba(var(--primary-color-rgb), 0.3);
        transition: all 0.3s ease;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .back-to-top:hover {
        transform: translateY(-4px);
        box-shadow: 0 8px 20px rgba(var(--primary-color-rgb), 0.4);
    }

    .back-to-top:active {
        transform: scale(0.95);
    }

    /* 移动端主题切换增强 */
    .theme-toggle {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(var(--primary-color-rgb), 0.3);
        border-radius: 12px;
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        transition: all 0.3s ease;
    }

    .theme-toggle:active {
        transform: scale(0.95);
    }

    /* 移动端页脚优化 */
    footer {
        padding: 2rem 1rem;
    }

    footer h4 {
        font-size: 1rem;
        margin-bottom: 0.75rem;
    }

    footer p,
    footer a {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    /* 移动端触摸反馈 */
    button,
    a,
    input[type="button"],
    input[type="submit"] {
        -webkit-tap-highlight-color: transparent;
        user-select: none;
        -webkit-user-select: none;
    }

    /* 移动端文本优化 */
    body {
        -webkit-text-size-adjust: 100%;
        -ms-text-size-adjust: 100%;
    }

    /* 移动端图片优化 */
    img {
        max-width: 100%;
        height: auto;
        display: block;
    }

    .avatar-container img {
        border-radius: 50%;
        transition: transform var(--transition-speed) var(--ease-out-cubic);
    }

    /* 移动端也使用旋转效果，不使用放大 */
    .avatar-container:hover img {
        transform: rotate(5deg);
    }

    .avatar-container:hover {
        transform: rotate(-2deg);
    }

    /* 移动端列表优化 */
    ul,
    ol {
        padding-left: 1.5rem;
    }

    li {
        margin-bottom: 0.5rem;
        line-height: 1.8;
    }

    /* 移动端代码块优化 */
    code {
        background: rgba(var(--primary-color-rgb), 0.1);
        color: var(--primary-color);
        padding: 0.2rem 0.4rem;
        border-radius: 4px;
        font-size: 0.9rem;
    }

    pre {
        background: rgba(0, 0, 0, 0.3);
        padding: 1rem;
        border-radius: 12px;
        overflow-x: auto;
        border-left: 3px solid var(--primary-color);
    }

    /* 移动端链接优化 */
    a {
        color: var(--primary-color);
        text-decoration: none;
        transition: all 0.2s ease;
        position: relative;
    }

    a:active {
        opacity: 0.8;
    }

    /* 移动端分隔线优化 */
    hr {
        border: none;
        height: 2px;
        background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
        margin: 2rem 0;
    }

    /* 移动端引用块优化 */
    blockquote {
        border-left: 4px solid var(--primary-color);
        padding-left: 1rem;
        margin-left: 0;
        color: rgba(var(--text-color-rgb), 0.8);
        font-style: italic;
    }

    /* 移动端表格优化 */
    table {
        width: 100%;
        border-collapse: collapse;
        margin: 1rem 0;
        border-radius: 12px;
        overflow: hidden;
    }

    th {
        background: rgba(var(--primary-color-rgb), 0.1);
        color: var(--primary-color);
        padding: 0.75rem;
        text-align: left;
        font-weight: 600;
    }

    td {
        padding: 0.75rem;
        border-bottom: 1px solid var(--border-color);
    }

    tr:hover {
        background: rgba(var(--primary-color-rgb), 0.05);
    }
}

/* ============================================
   鼠标跟随光标效果
   ============================================ */

/* 只在非触摸设备上隐藏系统光标，显示自定义光标 */
@media (hover: hover) and (pointer: fine),
(min-width: 769px) {
    * {
        cursor: none;
    }
}

/* ============================================
   页面加载动画
   ============================================ */

.page-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-color), rgba(0, 255, 136, 0.05));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeOutLoader 0.8s ease-out 2.5s forwards;
    pointer-events: none;
}

.loader-content {
    text-align: center;
}

.loader-spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    position: relative;
}

.loader-spinner::before,
.loader-spinner::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top-color: var(--primary-color);
    border-right-color: var(--secondary-color);
    border-radius: 50%;
    animation: spin-loader 1.5s linear infinite;
}

.loader-spinner::after {
    border-top-color: var(--secondary-color);
    border-right-color: var(--primary-color);
    animation-duration: 2s;
    animation-direction: reverse;
    width: 80%;
    height: 80%;
    top: 10%;
    left: 10%;
}

.loader-text {
    color: var(--primary-color);
    font-size: 1.2rem;
    font-weight: 600;
    letter-spacing: 2px;
    animation: pulse-text 1.5s ease-in-out infinite;
}

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

@keyframes pulse-text {

    0%,
    100% {
        opacity: 0.6;
    }

    50% {
        opacity: 1;
    }
}

@keyframes fadeOutLoader {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

/* ============================================
   鼠标跟随光标效果
   ============================================ */

.cursor-glow {
    position: fixed;
    width: 30px;
    height: 30px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease;
    box-shadow: 0 0 20px rgba(var(--primary-color-rgb), 0.5),
        inset 0 0 20px rgba(var(--primary-color-rgb), 0.2);
}

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

.cursor-glow-inner {
    position: fixed;
    width: 8px;
    height: 8px;
    background: var(--primary-color);
    border-radius: 50%;
    pointer-events: none;
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease;
    box-shadow: 0 0 10px var(--primary-color);
}

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

/* ============================================
   滚动视差效果
   ============================================ */

.parallax-section {
    position: relative;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg,
            rgba(0, 255, 136, 0.05) 0%,
            rgba(0, 204, 255, 0.05) 100%);
    z-index: -1;
    will-change: transform;
}

/* ============================================
   卡片 3D 翻转效果
   ============================================ */

.card-3d-container {
    perspective: 1000px;
    height: 100%;
}

.card-3d {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    transform-style: preserve-3d;
}

.card-3d.flipped {
    transform: rotateY(180deg);
}

.card-3d-front,
.card-3d-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.card-3d-back {
    transform: rotateY(180deg);
}

/* ============================================
   文字渐变动画
   ============================================ */

.gradient-text {
    background: linear-gradient(90deg,
            var(--primary-color) 0%,
            var(--secondary-color) 50%,
            var(--primary-color) 100%);
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s linear infinite;
}

@keyframes gradient-shift {
    0% {
        background-position: 0% center;
    }

    100% {
        background-position: 200% center;
    }
}

/* ============================================
   文字打字机效果
   ============================================ */

.typewriter {
    overflow: hidden;
    border-right: 3px solid var(--primary-color);
    white-space: nowrap;
    animation: typewriter 3.5s steps(40, end),
        blink-caret 0.75s step-end infinite;
}

@keyframes typewriter {
    from {
        width: 0;
    }

    to {
        width: 100%;
    }
}

@keyframes blink-caret {

    from,
    to {
        border-right-color: var(--primary-color);
    }

    50% {
        border-right-color: transparent;
    }
}

/* ============================================
   背景粒子效果
   ============================================ */

.particle {
    position: fixed;
    pointer-events: none;
    z-index: 1;
}

.particle::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--primary-color), transparent);
    border-radius: 50%;
    opacity: 0.3;
}

/* ============================================
   按钮波纹效果增强
   ============================================ */

.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.btn-ripple:active::after {
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    to {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

/* ============================================
   图片悬停滤镜效果
   ============================================ */

.img-hover-filter {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-lg);
}

.img-hover-filter img {
    transition: all 0.4s cubic-bezier(0.215, 0.61, 0.355, 1);
    filter: brightness(1) saturate(1) contrast(1);
}

.img-hover-filter:hover img {
    transform: scale(1.1) rotate(1deg);
    filter: brightness(1.1) saturate(1.2) contrast(1.1);
}

/* ============================================
   导航栏 - 保持原始样式
   ============================================ */

nav a {
    position: relative;
}

/* ============================================
   高级卡片悬停效果
   ============================================ */

.project-card,
.award-card,
.link-card,
.skill-block {
    position: relative;
    overflow: hidden;
}

.project-card::before,
.award-card::before,
.link-card::before,
.skill-block::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(var(--primary-color-rgb), 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.project-card:hover::before,
.award-card:hover::before,
.link-card:hover::before,
.skill-block:hover::before {
    opacity: 1;
}

/* ============================================
   文字发光效果
   ============================================ */

h2,
h3,
h4 {
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

h2:hover::after {
    width: 100%;
}

/* ============================================
   按钮发光增强
   ============================================ */

.btn-modern {
    position: relative;
    overflow: hidden;
}

.btn-modern::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.btn-modern:active::after {
    animation: btn-ripple 0.6s ease-out;
}

@keyframes btn-ripple {
    to {
        width: 300px;
        height: 300px;
        opacity: 0;
    }
}

/* ============================================
   链接卡片图标发光
   ============================================ */

.link-card i {
    position: relative;
    transition: all 0.3s ease;
}

.link-card:hover i {
    transform: scale(1.2) rotate(10deg);
    filter: drop-shadow(0 0 10px var(--primary-color));
}

/* ============================================
   项目卡片标题渐变
   ============================================ */

.project-card h3,
.award-card h3 {
    background: linear-gradient(90deg, var(--text-color), var(--primary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
}

.project-card:hover h3,
.award-card:hover h3 {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   滚动时的文字动画
   ============================================ */

.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease-out forwards;
}

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

/* ============================================
   背景颜色 - 保持原始深蓝色
   ============================================ */

body {
    background-color: var(--bg-color);
}

/* ============================================
   超小屏幕优化 (< 375px)
   ============================================ */

@media (max-width: 374px) {
    :root {
        --spacing-unit: 0.6rem;
    }

    section {
        padding: 1.5rem 0.75rem;
    }

    section h2 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }

    .btn-modern {
        padding: 0.6rem 1.2rem;
        font-size: 0.9rem;
        min-height: 44px;
    }

    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        padding: 1rem;
        border-radius: 12px;
    }

    .projects-grid,
    .awards-grid,
    .links-grid {
        gap: 0.75rem;
        padding: 0 0.5rem;
    }

    footer {
        padding: 1.5rem 0.75rem;
    }

    footer h4 {
        font-size: 0.9rem;
    }

    footer p,
    footer a {
        font-size: 0.8rem;
    }
}

/* ============================================
   平板设备优化 (769px - 1024px)
   ============================================ */

@media (min-width: 769px) and (max-width: 1024px) {
    :root {
        --spacing-unit: 1rem;
    }

    .projects-grid,
    .awards-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .links-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 1.5rem;
    }

    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        border-radius: 14px;
        padding: 1.5rem;
    }

    .btn-modern {
        padding: 0.8rem 1.6rem;
        font-size: 1rem;
        min-height: 48px;
    }

    section h2 {
        font-size: 2rem;
        margin-bottom: 2rem;
    }

    section h2::after {
        width: 50px;
    }
}

/* ============================================
   大屏幕优化 (> 1024px)
   ============================================ */

@media (min-width: 1025px) {

    .projects-grid,
    .awards-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 2rem;
    }

    .links-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 2rem;
    }

    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        border-radius: 16px;
        padding: 2rem;
    }

    .btn-modern {
        padding: 0.9rem 1.8rem;
        font-size: 1.05rem;
        min-height: 50px;
    }

    section h2 {
        font-size: 2.2rem;
        margin-bottom: 2.5rem;
    }

    section h2::after {
        width: 60px;
    }
}

/* ============================================
   触摸设备优化
   ============================================ */

@media (hover: none) and (pointer: coarse) {

    /* 触摸设备 - 移除悬停效果，使用活跃状态 */
    .btn-modern:hover {
        transform: scale(1);
        box-shadow: 0 0 15px rgba(var(--primary-color-rgb), 0.2);
    }

    .project-card:hover,
    .award-card:hover,
    .link-card:hover,
    .skill-block:hover {
        transform: none;
    }

    /* 增加活跃状态的反馈 */
    .btn-modern:active {
        transform: scale(0.95);
        box-shadow: 0 0 10px rgba(var(--primary-color-rgb), 0.3);
    }

    .project-card:active,
    .award-card:active,
    .link-card:active,
    .skill-block:active {
        transform: scale(0.98);
    }

    /* 移除链接卡片的悬停旋转 */
    .link-card i:hover {
        transform: scale(1);
    }

    .link-card i:active {
        transform: scale(0.9);
    }

    /* 导航链接优化 */
    nav a:hover {
        color: inherit;
    }

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

/* ============================================
   高分辨率屏幕优化 (Retina)
   ============================================ */

@media (-webkit-min-device-pixel-ratio: 2),
(min-resolution: 192dpi) {

    /* 优化高分辨率屏幕的阴影和边框 */
    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    }

    .project-card:hover,
    .award-card:hover,
    .link-card:hover,
    .skill-block:hover {
        box-shadow: 0 8px 16px rgba(var(--primary-color-rgb), 0.2);
    }

    /* 优化文本渲染 */
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* ============================================
   暗色模式优化
   ============================================ */

@media (prefers-color-scheme: dark) {
    .btn-modern {
        box-shadow: 0 0 20px rgba(var(--primary-color-rgb), 0.3);
    }

    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    }

    .project-card:hover,
    .award-card:hover,
    .link-card:hover,
    .skill-block:hover {
        box-shadow: 0 12px 32px rgba(var(--primary-color-rgb), 0.3);
    }
}

/* ============================================
   浅色模式优化
   ============================================ */

@media (prefers-color-scheme: light) {
    .btn-modern {
        box-shadow: 0 0 15px rgba(var(--primary-color-rgb), 0.2);
    }

    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    }

    .project-card:hover,
    .award-card:hover,
    .link-card:hover,
    .skill-block:hover {
        box-shadow: 0 8px 16px rgba(var(--primary-color-rgb), 0.15);
    }
}

/* ============================================
   打印样式优化
   ============================================ */

@media print {

    /* 隐藏不需要打印的元素 */
    nav,
    .back-to-top,
    .theme-toggle,
    button,
    .btn {
        display: none !important;
    }

    /* 优化打印样式 */
    body {
        background: white;
        color: black;
    }

    section {
        page-break-inside: avoid;
        padding: 1rem 0;
    }

    .project-card,
    .award-card,
    .link-card,
    .skill-block {
        page-break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }

    a {
        color: black;
        text-decoration: underline;
    }

    img {
        max-width: 100%;
        page-break-inside: avoid;
    }
}

/* ============================================
   移动端禁用鼠标样式（触摸设备）
   ============================================ */

/* 检测触摸设备并移除所有鼠标样式 */
@media (hover: none) and (pointer: coarse),
(max-width: 768px) {

    /* 恢复默认光标，移除全局的 cursor: none */
    * {
        cursor: default !important;
    }

    /* 移除所有交互元素的鼠标样式 */
    a,
    button,
    [role="button"],
    input[type="button"],
    input[type="submit"],
    input[type="reset"],
    .clickable,
    .interactive {
        cursor: default !important;
    }

    /* 隐藏鼠标跟随光标效果 */
    .cursor-glow,
    .cursor-glow-inner {
        display: none !important;
        opacity: 0 !important;
        visibility: hidden !important;
    }
}