/* ==========================================
   基础样式与变量
   ========================================== */
:root {
    /* 配色方案 - 暗黑主题（默认） */
    --color-bg: #0a0e27;
    --color-text: #e4e7eb;
    --color-text-light: #9ca3af;
    --color-primary: #3b82f6;  /* AI蓝 */
    --color-primary-dark: #2563eb;
    --color-primary-light: #60a5fa;
    --color-accent: #8b5cf6;  /* 紫色点缀 */
    --color-border: rgba(255, 255, 255, 0.1);
    --color-card-bg: rgba(15, 23, 42, 0.6);
    --color-sidebar-bg: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --color-header-bg: rgba(10, 14, 39, 0.8);

    /* 间距系统 - 更紧凑 */
    --spacing-xs: 0.4rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* 布局 */
    --sidebar-width: 280px;
    --header-height: 60px;

    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans SC", "Microsoft YaHei", "PingFang SC", sans-serif;
    --font-mono: "Fira Code", "Cascadia Code", "SF Mono", Monaco, Consolas, monospace;

    /* 阴影 - 更强的层次感 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    --shadow-xl: 0 12px 40px rgba(0, 0, 0, 0.2);

    /* 圆角 - 更现代 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

/* 亮色主题 */
[data-theme="light"] {
    --color-bg: #f8fafc;
    --color-text: #1e293b;
    --color-text-light: #64748b;
    --color-primary: #2563eb;
    --color-primary-dark: #1e40af;
    --color-primary-light: #3b82f6;
    --color-accent: #7c3aed;
    --color-border: rgba(0, 0, 0, 0.1);
    --color-card-bg: rgba(255, 255, 255, 0.8);
    --color-sidebar-bg: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
    --color-header-bg: rgba(255, 255, 255, 0.9);
}

/* 亮色主题特定样式覆盖 */
[data-theme="light"] .sidebar-content {
    color: #1e293b;
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.2);
}

[data-theme="light"] .sidebar-name {
    color: #1e293b;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .sidebar-title {
    color: #334155;
}

[data-theme="light"] .sidebar-affiliation {
    color: #475569;
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .contact-item strong {
    color: #1e293b;
}

[data-theme="light"] .contact-item a {
    color: #475569;
}

[data-theme="light"] .contact-item a:hover {
    color: #1e293b;
}

[data-theme="light"] .social-link {
    color: #1e293b;
    background: rgba(0, 0, 0, 0.05);
    border: 2px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .social-link:hover {
    background: rgba(37, 99, 235, 0.1);
    color: #2563eb;
}

[data-theme="light"] .avatar-placeholder {
    color: #64748b;
    background: rgba(0, 0, 0, 0.05);
    border: 4px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .publication-category-title {
    color: #475569;
    border-bottom-color: rgba(37, 99, 235, 0.2);
}

[data-theme="light"] .publication-title-link {
    color: #334155;
}

[data-theme="light"] .publication-title-link:hover {
    color: #2563eb;
}

[data-theme="light"] .publication-authors {
    color: #64748b;
}

[data-theme="light"] .publication-authors strong {
    color: #475569;
}

[data-theme="light"] .publication-venue {
    color: #64748b;
}

[data-theme="light"] .publication-venue-inline {
    color: #64748b;
}

[data-theme="light"] .pub-link:hover {
    color: #ffffff;
}

[data-theme="light"] .github-link:hover {
    color: #ffffff;
}

[data-theme="light"] .scholar-link:hover {
    color: #ffffff;
}

[data-theme="light"] .header {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .contact-info {
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .social-links {
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .publication {
    border-bottom-color: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .publication:hover {
    background: rgba(0, 0, 0, 0.02);
}

[data-theme="light"] .project-card {
    background: rgba(255, 255, 255, 0.6);
    border-color: rgba(37, 99, 235, 0.2);
}

[data-theme="light"] .project-card:hover {
    border-color: rgba(37, 99, 235, 0.5);
    box-shadow: 0 0 40px rgba(37, 99, 235, 0.2);
}

[data-theme="light"] .project-title {
    background: linear-gradient(135deg, #1e293b 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .theme-toggle:hover {
    background: rgba(37, 99, 235, 0.1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    background-image:
        radial-gradient(at 0% 0%, rgba(59, 130, 246, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.15) 0px, transparent 50%);
    background-attachment: fixed;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    padding-top: var(--header-height);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

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

/* ==========================================
   顶部导航栏
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--color-header-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    height: 100%;
    padding: 0 var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 400;
    transition: color 0.2s ease;
    position: relative;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -20px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--color-primary);
}

.lang-switch {
    color: var(--color-primary);
}

/* ==========================================
   主容器布局
   ========================================== */
.main-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-md);
    gap: var(--spacing-lg);
    align-items: flex-start;
}

/* ==========================================
   左侧边栏
   ========================================== */
.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    position: sticky;
    top: calc(var(--header-height) + var(--spacing-lg));
}

.sidebar-content {
    background: var(--color-sidebar-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.2);
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.sidebar-content::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.1) 0%, transparent 70%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.5; }
    50% { transform: translate(-10%, -10%) scale(1.1); opacity: 1; }
}

/* 头像 */
.avatar-wrapper {
    width: 140px;
    height: 140px;
    margin: 0 auto var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: 45% 35%;
    border: 3px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
}

.avatar:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px rgba(59, 130, 246, 0.35);
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.8);
    border: 4px solid rgba(255, 255, 255, 0.3);
}

/* 个人信息 */
.sidebar-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-xs);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.sidebar-title {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    position: relative;
    z-index: 1;
}

.sidebar-affiliation {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.5;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

/* 联系方式 */
.contact-info {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    text-align: left;
    position: relative;
    z-index: 1;
}

.contact-item {
    margin-bottom: var(--spacing-xs);
    font-size: 0.85rem;
    line-height: 1.6;
}

.contact-item strong {
    display: block;
    color: white;
    margin-bottom: 2px;
    font-weight: 600;
}

.contact-item a {
    color: rgba(255, 255, 255, 0.85);
    word-break: break-all;
}

.contact-item a:hover {
    color: white;
    text-decoration: underline;
}

/* 社交链接 */
.social-links {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    border-radius: 50%;
    color: white;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.social-link:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

/* 简历按钮 */
.cv-button {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.8rem 1.8rem;
    background: white;
    color: var(--color-primary);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    position: relative;
    z-index: 1;
}

.cv-button:hover {
    background: rgba(255, 255, 255, 0.95);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    color: var(--color-primary-dark);
}

/* ==========================================
   右侧主内容区
   ========================================== */
.main-content {
    flex: 1;
    min-width: 0;
}

.content-section {
    background: var(--color-card-bg);
    backdrop-filter: blur(10px);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--color-border);
    transition: all 0.3s ease;
}

.content-section:hover {
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.2);
    transform: translateY(-2px);
    border-color: rgba(59, 130, 246, 0.3);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text);
    margin-top: 0;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    padding-left: var(--spacing-xs);
    position: relative;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title::before {
    content: '';
    position: absolute;
    left: var(--spacing-xs);
    bottom: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
    box-shadow: 0 0 10px var(--color-primary);
}

.section-content {
    font-size: 0.95rem;
    line-height: 1.6;
    padding-left: var(--spacing-xs);
    padding-right: var(--spacing-xs);
}

.section-content p {
    margin-bottom: var(--spacing-sm);
}

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

/* 招聘信息卡片 */
.hiring-callout {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-start;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: linear-gradient(135deg, rgba(251, 146, 60, 0.1) 0%, rgba(234, 88, 12, 0.05) 100%);
    border-left: 4px solid #f97316;
    border-radius: var(--radius-md);
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.15);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.hiring-callout::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(251, 146, 60, 0.1) 0%, transparent 70%);
    animation: pulse-hiring 3s ease-in-out infinite;
}

@keyframes pulse-hiring {
    0%, 100% {
        transform: translate(0, 0) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translate(-5%, -5%) scale(1.05);
        opacity: 0.6;
    }
}

.hiring-callout:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(249, 115, 22, 0.25);
    border-left-color: #ea580c;
}

.hiring-icon {
    font-size: 2rem;
    line-height: 1;
    flex-shrink: 0;
    animation: flame 1.5s ease-in-out infinite;
    filter: drop-shadow(0 0 10px rgba(249, 115, 22, 0.5));
    position: relative;
    z-index: 1;
}

@keyframes flame {
    0%, 100% {
        transform: scale(1) rotate(-5deg);
    }
    50% {
        transform: scale(1.1) rotate(5deg);
    }
}

.hiring-content {
    flex: 1;
    position: relative;
    z-index: 1;
}

.hiring-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #f97316;
    margin: 0 0 var(--spacing-xs) 0;
    text-shadow: 0 2px 4px rgba(249, 115, 22, 0.1);
}

.hiring-text {
    font-size: 0.95rem;
    color: var(--color-text);
    margin: 0;
    line-height: 1.6;
}

/* About Me Section with Avatar */
.about-container {
    display: flex;
    gap: var(--spacing-lg);
    align-items: flex-start;
}

.profile-avatar {
    flex-shrink: 0;
    width: 180px;
    height: 180px;
}

.profile-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    object-position: center;
    border: 4px solid rgba(59, 130, 246, 0.3);
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.2);
    transition: all 0.3s ease;
}

.profile-avatar img:hover {
    transform: scale(1.05);
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 6px 30px rgba(59, 130, 246, 0.4);
}

.about-text {
    flex: 1;
    min-width: 0;
}

/* Responsive layout for smaller screens */
@media (max-width: 768px) {
    .about-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .profile-avatar {
        width: 150px;
        height: 150px;
        margin-bottom: var(--spacing-md);
    }
}

.intro-text {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-md);
}

.text-link {
    color: var(--color-primary);
    border-bottom: 1px solid transparent;
}

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

/* 研究兴趣 */
.research-area {
    margin-bottom: var(--spacing-md);
}

.research-area:last-child {
    margin-bottom: 0;
}

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

.research-list {
    list-style: none;
    padding-left: 0;
}

.research-list li {
    padding-left: 1.5rem;
    margin-bottom: 0.5rem;
    position: relative;
}

.research-list li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: bold;
}

/* ==========================================
   学术论文列表
   ========================================== */
.publication-category {
    margin-bottom: var(--spacing-lg);
}

.publication-category:last-child {
    margin-bottom: 0;
}

.publication-category-title {
    font-size: 1rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid rgba(59, 130, 246, 0.2);
    position: relative;
    padding-left: var(--spacing-xs);
}

.publication-category-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 1rem;
    background: linear-gradient(180deg, var(--color-primary), var(--color-accent));
    border-radius: 2px;
}

/* Collapsible functionality */
.collapsible-title {
    cursor: pointer;
    user-select: none;
    transition: color 0.2s ease;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.collapsible-title:hover {
    color: var(--color-primary);
}

.collapse-icon {
    display: inline-block;
    font-size: 0.9rem;
    margin-left: 0.5rem;
    transition: transform 0.3s ease, color 0.2s ease;
    color: var(--color-primary);
    opacity: 0.7;
    flex-shrink: 0;
}

.collapsible-title:hover .collapse-icon {
    opacity: 1;
}

.collapsible-title.collapsed .collapse-icon {
    transform: rotate(-90deg);
}

.publication-list {
    max-height: 10000px;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 1;
}

.publication-list.collapsed {
    max-height: 0;
    opacity: 0;
}

.publication {
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
    transition: all 0.2s ease;
}

.publication:last-child {
    border-bottom: none;
}

.publication:hover {
    background: rgba(255, 255, 255, 0.01);
    padding-left: var(--spacing-xs);
}

.publication-title {
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 0.4rem;
    line-height: 1.6;
}

.publication-number {
    display: inline-block;
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--color-primary);
    margin-right: 0.5rem;
    font-family: var(--font-mono);
}

.publication-title-link {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    transition: color 0.2s ease;
    cursor: pointer;
}

.publication-title-link:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.publication-authors {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    margin-bottom: 0.25rem;
}

.publication-authors strong {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.65);
    text-decoration: underline;
    text-decoration-color: var(--color-primary);
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}

.publication-venue {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 0.5rem;
    font-style: italic;
}

.publication-venue-inline {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.5);
    font-weight: 400;
    margin-left: 0.5rem;
}

.publication-links {
    display: flex;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.pub-link {
    padding: 0.3rem 0.8rem;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    color: var(--color-text-light);
    transition: all 0.2s ease;
}

.pub-link:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

/* ==========================================
   News List (Simple & Compact)
   ========================================== */
.news-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.news-item {
    display: flex;
    gap: 0.5rem;
    padding: 0.3rem var(--spacing-md);
    border-left: 2px solid rgba(59, 130, 246, 0.3);
    background: rgba(30, 41, 59, 0.2);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    transition: all 0.3s ease;
}

.news-item:hover {
    background: rgba(30, 41, 59, 0.4);
    border-left-color: rgba(59, 130, 246, 0.5);
    transform: translateX(4px);
}

.news-date {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary-light);
    min-width: 80px;
    flex-shrink: 0;
}

.news-text {
    font-size: 0.95rem;
    color: var(--color-text);
    line-height: 1.5;
}

.news-text a {
    color: var(--color-primary-light);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.news-text a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

.news-text strong {
    color: var(--color-text);
    font-weight: 600;
}

/* 亮色主题 News 样式 */
[data-theme="light"] .news-item {
    background: rgba(255, 255, 255, 0.5);
    border-left-color: rgba(37, 99, 235, 0.3);
}

[data-theme="light"] .news-item:hover {
    background: rgba(255, 255, 255, 0.8);
    border-left-color: rgba(37, 99, 235, 0.5);
}

[data-theme="light"] .news-date {
    color: var(--color-primary);
}

[data-theme="light"] .news-text a {
    color: var(--color-primary);
}

[data-theme="light"] .news-text a:hover {
    color: var(--color-primary-dark);
}

/* ==========================================
   开源项目卡片
   ========================================== */
.project-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.project-card {
    padding: var(--spacing-sm);
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: var(--radius-lg);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    box-shadow: 0 0 10px var(--color-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.project-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(600px circle at var(--mouse-x) var(--mouse-y), rgba(59, 130, 246, 0.1), transparent 40%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: 0;
}

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

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


.project-card:hover {
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 0 40px rgba(59, 130, 246, 0.3);
    transform: translateY(-4px);
}

.project-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    position: relative;
    z-index: 1;
}

.project-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0;
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    background: linear-gradient(135deg, #ffffff 0%, var(--color-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.project-stats {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.github-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--color-text);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 4px 8px;
    border-radius: var(--radius-md);
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    cursor: pointer;
    text-decoration: none;
}

.github-logo {
    flex-shrink: 0;
    opacity: 0.9;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 0 5px rgba(59, 130, 246, 0.5));
    pointer-events: none;
}

.github-link:hover {
    color: #ffffff;
    background: rgba(59, 130, 246, 0.2);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(59, 130, 246, 0.4);
}

.github-link:active {
    transform: translateY(0);
}

.github-link:hover .github-logo {
    opacity: 1;
    transform: rotate(360deg) scale(1.1);
    filter: drop-shadow(0 0 10px rgba(59, 130, 246, 0.8));
}

.scholar-link {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    color: var(--color-text);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 6px 12px;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(139, 92, 246, 0.3);
    background: rgba(139, 92, 246, 0.05);
    text-decoration: none;
}

.scholar-link svg {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    filter: drop-shadow(0 0 5px rgba(139, 92, 246, 0.5));
}

.scholar-link:hover {
    color: #ffffff;
    background: rgba(139, 92, 246, 0.2);
    border-color: #8b5cf6;
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.4);
}

.scholar-link:active {
    transform: translateY(0);
}

.scholar-link:hover svg {
    transform: scale(1.1);
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.8));
}

.stat-number {
    font-variant-numeric: tabular-nums;
    font-weight: 600;
    letter-spacing: 0.2px;
}

.project-description {
    font-size: 0.85rem;
    color: var(--color-text-light);
    line-height: 1.5;
    margin-bottom: 0;
    position: relative;
    z-index: 1;
}

/* 项目状态徽章 */
.project-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 3px 10px;
    padding-left: 6px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    border-radius: 12px;
    border: 1px solid;
    position: relative;
    overflow: visible;
    transition: all 0.3s ease;
    /* 重置父元素的 background-clip 影响 */
    -webkit-text-fill-color: initial;
    background-clip: border-box;
}

.project-status::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    flex-shrink: 0;
}

/* Active 状态 - 绿色 */
.status-active {
    color: #10b981 !important;
    border-color: rgba(16, 185, 129, 0.4);
    background: rgba(16, 185, 129, 0.15) !important;
    -webkit-text-fill-color: #10b981 !important;
}

.status-active::before {
    background: #10b981;
    box-shadow: 0 0 8px #10b981;
    animation: pulse-green 2s ease-in-out infinite;
}

@keyframes pulse-green {
    0%, 100% {
        opacity: 1;
        box-shadow: 0 0 8px #10b981;
    }
    50% {
        opacity: 0.6;
        box-shadow: 0 0 15px #10b981;
    }
}

/* Inactive 状态 - 灰色 */
.status-inactive {
    color: #94a3b8 !important;
    border-color: rgba(148, 163, 184, 0.4);
    background: rgba(148, 163, 184, 0.15) !important;
    -webkit-text-fill-color: #94a3b8 !important;
}

.status-inactive::before {
    background: #94a3b8;
    box-shadow: 0 0 4px rgba(148, 163, 184, 0.5);
}

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

/* ==========================================
   页脚
   ========================================== */
.footer {
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    color: var(--color-text-light);
    font-size: 0.85rem;
    background: var(--color-card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

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

/* 平板设备 */
@media (max-width: 992px) {
    .main-container {
        flex-direction: column;
        gap: var(--spacing-lg);
    }

    .sidebar {
        width: 100%;
        position: static;
    }

    .sidebar-content {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        text-align: left;
        gap: var(--spacing-md);
    }

    .avatar-wrapper {
        width: 120px;
        height: 120px;
        margin: 0;
    }

    .sidebar-name,
    .sidebar-title,
    .sidebar-affiliation {
        flex: 1;
        min-width: 200px;
    }

    .contact-info,
    .social-links,
    .cv-button {
        flex-basis: 100%;
    }

    .contact-info {
        display: flex;
        gap: var(--spacing-md);
        flex-wrap: wrap;
    }

    .contact-item {
        flex: 1;
        min-width: 200px;
    }
}

/* 平板 - 项目卡片单列 */
@media (max-width: 992px) {
    .project-grid {
        grid-template-columns: 1fr;
    }
}

/* 手机设备 */
@media (max-width: 768px) {
    :root {
        --header-height: 56px;
    }

    .hiring-callout {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
        align-items: center;
    }

    .hiring-icon {
        font-size: 1.75rem;
    }

    .header-content {
        padding: 0 var(--spacing-sm);
    }

    .header-name {
        font-size: 1.1rem;
    }

    .nav {
        gap: var(--spacing-sm);
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .main-container {
        padding: var(--spacing-sm);
    }

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

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

    .sidebar-name,
    .sidebar-title,
    .sidebar-affiliation {
        min-width: auto;
        text-align: center;
    }

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

    .contact-item {
        min-width: auto;
    }

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

    .section-title {
        font-size: 1.4rem;
    }

    .project-title {
        font-size: 1.2rem;
    }

    .project-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .project-stats {
        align-self: flex-start;
    }

    .nav-link.active::after {
        bottom: -18px;
    }

    /* News 响应式 */
    .news-item {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-sm);
    }

    .news-date {
        min-width: auto;
        font-size: 0.85rem;
    }

    .news-text {
        font-size: 0.9rem;
    }
}

/* 小屏手机 */
@media (max-width: 480px) {
    .header-name {
        font-size: 1rem;
    }

    .nav {
        gap: 0.5rem;
    }

    .nav-link {
        font-size: 0.8rem;
    }

    .section-title {
        font-size: 1.25rem;
    }

    .sidebar-name {
        font-size: 1.2rem;
    }

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

/* ==========================================
   打印样式
   ========================================== */
@media print {
    body {
        background: white;
        padding-top: 0;
    }

    .header {
        position: static;
        box-shadow: none;
    }

    .sidebar {
        position: static;
    }

    .content-section,
    .sidebar-content,
    .project-card {
        box-shadow: none;
        border: 1px solid var(--color-border);
    }

    .social-link:hover,
    .publication:hover,
    .project-card:hover {
        transform: none;
    }

    a {
        color: var(--color-text);
    }

    a[href]:after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: var(--color-text-light);
    }
}

/* ==========================================
   主题切换按钮
   ========================================== */
.theme-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    padding: 0;
}

.theme-toggle:hover {
    background: rgba(59, 130, 246, 0.1);
    transform: scale(1.1);
}

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

.theme-toggle svg {
    width: 20px;
    height: 20px;
    color: var(--color-text-light);
    transition: all 0.3s ease;
}

.theme-toggle:hover svg {
    color: var(--color-primary);
    transform: rotate(20deg);
}

/* 主题切换时的图标动画 */
.theme-toggle.rotating svg {
    animation: rotateIcon 0.5s ease;
}

@keyframes rotateIcon {
    0% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(0.8);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

/* 移动端调整 */
@media (max-width: 768px) {
    .theme-toggle {
        width: 32px;
        height: 32px;
    }

    .theme-toggle svg {
        width: 18px;
        height: 18px;
    }
}