/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #151b2b;
    --accent-purple: #7c3aed;
    --accent-blue: #06b6d4;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --glass-bg: rgba(10, 14, 23, 0.8);
    --glass-border: rgba(124, 58, 237, 0.3);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
        sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
}

/* ==================== 导航栏 ==================== */
.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 30px;
    padding: 10px 30px;
    z-index: 1000;
    display: flex;
    gap: 20px;
    box-shadow: 0 4px 20px rgba(124, 58, 237, 0.2);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 16px;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 20px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--accent-blue);
    background: rgba(6, 182, 212, 0.1);
}

.nav-link.active {
    color: var(--accent-purple);
    background: rgba(124, 58, 237, 0.2);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-blue);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 80%;
}

/* ==================== 首页Canvas ==================== */
#canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ==================== About页面 ==================== */
.about-container {
    position: relative;
    z-index: 10;
    padding: 120px 20px 60px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-content {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 40px;
    align-items: start;
}

.about-sidebar {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-secondary);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.avatar-wrapper {
    width: 200px;
    height: 200px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--accent-purple);
    box-shadow: 0 0 30px rgba(124, 58, 237, 0.5);
}

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

.name {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--text-secondary);
    font-size: 16px;
    font-style: italic;
}

.about-details {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.about-section {
    background: var(--bg-secondary);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.about-section h2 {
    font-size: 24px;
    margin-bottom: 20px;
    color: var(--accent-blue);
}

.about-section p {
    line-height: 1.8;
    color: var(--text-secondary);
}

/* ==================== 技能条 ==================== */
.skills-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skill-name {
    font-weight: 600;
    color: var(--text-primary);
}

.skill-bar {
    width: 100%;
    height: 8px;
    background: var(--bg-primary);
    border-radius: 4px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-blue));
    border-radius: 4px;
    transition: width 1s ease;
    animation: fillSkill 2s ease forwards;
}

@keyframes fillSkill {
    from { width: 0; }
    to { width: var(--level); }
}

/* ==================== 社交链接 ==================== */
.social-links {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: 25px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(124, 58, 237, 0.4);
}

.social-icon {
    width: 20px;
    height: 20px;
}

/* ==================== 项目列表 ==================== */
.project-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.project-item {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid var(--accent-blue);
    transition: transform 0.3s ease;
}

.project-item:hover {
    transform: translateX(5px);
}

.project-item h3 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

/* ==================== Blog页面 ==================== */
.blog-container {
    position: relative;
    z-index: 10;
    padding: 120px 20px 60px;
    max-width: 1000px;
    margin: 0 auto;
}

.blog-header {
    text-align: center;
    margin-bottom: 50px;
}

.blog-header h1 {
    font-size: 42px;
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-subtitle {
    color: var(--text-secondary);
    font-size: 18px;
}

.blog-list {
    display: grid;
    gap: 30px;
}

.blog-card {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 30px;
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
    cursor: pointer;
}

.blog-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(124, 58, 237, 0.2);
    border-color: var(--accent-purple);
}

.blog-card-title {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.blog-card-meta {
    display: flex;
    gap: 15px;
    margin-bottom: 15px;
    color: var(--text-secondary);
    font-size: 14px;
}

.blog-card-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tag {
    padding: 4px 12px;
    background: var(--accent-purple);
    border-radius: 15px;
    font-size: 12px;
    color: white;
}

.blog-card-excerpt {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 0;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 18px;
}

/* ==================== 文章详情页 ==================== */
.article-container {
    position: relative;
    z-index: 10;
    padding: 120px 20px 60px;
    max-width: 800px;
    margin: 0 auto;
}

.article {
    background: var(--bg-secondary);
    border-radius: 20px;
    padding: 50px;
    border: 1px solid var(--glass-border);
}

.article-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--glass-border);
}

.article-title {
    font-size: 36px;
    margin-bottom: 15px;
    line-height: 1.3;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.article-meta {
    display: flex;
    gap: 15px;
    align-items: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.article-content {
    line-height: 1.9;
    color: var(--text-primary);
}

.article-content h1,
.article-content h2,
.article-content h3,
.article-content h4,
.article-content h5,
.article-content h6 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.article-content h2 {
    font-size: 28px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--glass-border);
}

.article-content h3 {
    font-size: 24px;
}

.article-content p {
    margin-bottom: 15px;
}

.article-content a {
    color: var(--accent-blue);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-blue);
    transition: all 0.3s ease;
}

.article-content a:hover {
    color: var(--accent-purple);
    border-color: var(--accent-purple);
}

.article-content code {
    background: var(--bg-primary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 0.9em;
    color: var(--accent-blue);
}

.article-content pre {
    background: var(--bg-primary);
    padding: 20px;
    border-radius: 12px;
    overflow-x: auto;
    margin-bottom: 20px;
    border: 1px solid var(--glass-border);
}

.article-content pre code {
    background: none;
    padding: 0;
    color: var(--text-primary);
}

.article-content blockquote {
    border-left: 4px solid var(--accent-purple);
    padding-left: 20px;
    margin: 20px 0;
    color: var(--text-secondary);
    font-style: italic;
}

.article-content ul,
.article-content ol {
    margin-left: 30px;
    margin-bottom: 20px;
}

.article-content li {
    margin-bottom: 8px;
}

.article-content img {
    max-width: 100%;
    border-radius: 12px;
    margin: 20px 0;
    border: 1px solid var(--glass-border);
}

.article-footer {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
}

.back-to-list {
    display: inline-block;
    padding: 10px 20px;
    background: var(--accent-purple);
    color: white;
    text-decoration: none;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.back-to-list:hover {
    background: var(--accent-blue);
    transform: translateY(-2px);
}

.article-navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 20px;
    gap: 20px;
}

.article-nav-link {
    flex: 1;
    padding: 15px 20px;
    background: var(--bg-primary);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    text-align: center;
}

.article-nav-link:hover {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
}

.article-nav-link.empty {
    opacity: 0;
    pointer-events: none;
}