:root {
    /* 浅色主题 */
    --light-bg: #f5f7fa;
    --light-card-bg: #ffffff;
    --light-text: #333333;
    --light-accent: #4a6cf7;
    --light-secondary: #6c757d;
    --light-border: #e9ecef;
    --light-hover: #e9ecef;

    /* 黑客风格主题 */
    --dark-bg: #0a0a0a;
    --dark-card-bg: #111111;
    --dark-text: #00ff00;
    --dark-accent: #00ff00;
    --dark-secondary: #00cc00;
    --dark-border: #00aa00;
    --dark-hover: #002200;

    /* 默认使用浅色主题 */
    --bg: var(--light-bg);
    --card-bg: var(--light-card-bg);
    --text: var(--light-text);
    --accent: var(--light-accent);
    --secondary: var(--light-secondary);
    --border: var(--light-border);
    --hover: var(--light-hover);

    /* 其他变量 */
    --border-radius: 12px;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s ease;
    --terminal-shadow: 0 0 5px rgba(0, 255, 0, 0.5);
    --matrix-animation: matrixEffect 120s linear infinite;
}

@font-face {
    font-family: 'Hack';
    src: url('https://cdn.jsdelivr.net/npm/hack-font@3.3.0/build/web/fonts/hack-regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
    transition: var(--transition);
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: none;
}

body.dark-theme::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(rgba(0, 255, 0, 0.03), rgba(0, 0, 0, 0.2)), 
                repeating-linear-gradient(transparent, transparent 20px, rgba(0, 255, 0, 0.03) 20px, rgba(0, 255, 0, 0.03) 21px);
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

body.dark-theme .container {
    animation: terminalFlicker 0.3s infinite alternate;
}

/* 头部样式 */
header {
    margin-bottom: 2rem;
}

body.dark-theme header {
    border-bottom: 1px solid var(--accent);
    padding-bottom: 1rem;
}

header::before {
    content: none;
}

body.dark-theme header::before {
    content: "/* PROFILE */";
    position: absolute;
    top: -20px;
    left: 0;
    font-size: 0.8rem;
    color: var(--secondary);
    opacity: 0.7;
}

.profile {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.profile-image img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent);
    transition: var(--transition);
}

.profile-info h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.profile-info p {
    color: var(--secondary);
    font-size: 1.1rem;
}

/* 卡片样式 */
.card {
    background-color: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--card-shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
}

.card h2 {
    margin-bottom: 1.5rem;
    color: var(--accent);
    font-size: 1.6rem;
    border-bottom: 2px solid var(--border);
    padding-bottom: 0.8rem;
    position: relative;
    font-weight: 600;
}

/* 社交链接样式 */
.social-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    background-color: var(--bg);
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--text);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.social-link:hover {
    background-color: var(--hover);
    transform: translateY(-3px);
}

.social-link i {
    font-size: 1.2rem;
    color: var(--accent);
}

/* 项目网格样式 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.project-card {
    background-color: var(--bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.project-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.project-info {
    padding: 1rem;
}

.project-info h3 {
    margin-bottom: 0.5rem;
    color: var(--text);
}

.project-info p {
    color: var(--secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.project-link {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--accent);
    color: white;
    text-decoration: none;
    border-radius: 4px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.project-link:hover {
    opacity: 0.9;
}

footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    color: var(--secondary);
    flex-wrap: wrap;
    gap: 1rem;
}

.theme-switch {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-btn {
    background: none;
    border: 1px solid var(--border);
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    color: var(--text);
    transition: var(--transition);
}

.theme-btn:hover {
    background-color: var(--hover);
}

.theme-btn.active {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

/* 终端统计信息 - 默认隐藏 */
.terminal-stats {
    display: none;
}

/* 终端容器 - 默认隐藏 */
#terminal {
    display: none;
}

/* Hacker Mode样式 */
body.dark-theme {
    --bg: var(--dark-bg);
    --card-bg: var(--dark-card-bg);
    --text: var(--dark-text);
    --accent: var(--dark-accent);
    --secondary: var(--dark-secondary);
    --border: var(--dark-border);
    --hover: var(--dark-hover);
    --card-shadow: 0 0 15px rgba(0, 255, 0, 0.2);
    font-family: 'Hack', 'Courier New', monospace;
    position: relative;
    overflow-x: hidden;
}

/* Hacker Mode下显示终端统计和终端容器 */
body.dark-theme .terminal-stats {
    display: flex;
    gap: 15px;
    margin-top: 10px;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

body.dark-theme #terminal {
    display: block;
}

body.dark-theme .matrix-background {
    opacity: 0.05;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" viewBox="0 0 100 100"><text y="50" x="5" fill="%2300ff00" font-size="70">0</text><text y="50" x="40" fill="%2300ff00" font-size="70">1</text><text y="90" x="5" fill="%2300ff00" font-size="70">1</text><text y="90" x="40" fill="%2300ff00" font-size="70">0</text></svg>');
}

body.dark-theme .profile-image img {
    border-radius: 0;
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.3);
    filter: grayscale(30%) brightness(90%) contrast(120%);
}

body.dark-theme .profile-image img:hover {
    box-shadow: 0 0 25px rgba(0, 255, 0, 0.6);
    filter: grayscale(0%) brightness(100%);
}

body.dark-theme .profile-info h1 {
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.7);
    position: relative;
    display: inline-block;
}

body.dark-theme .profile-info h1::after {
    content: "_";
    animation: cursor 1s infinite;
}

body.dark-theme .card {
    border-radius: 0;
    box-shadow: 0 0 15px rgba(0, 255, 0, 0.2);
    border: 1px solid var(--border);
}

body.dark-theme .card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 30px;
    background-color: var(--accent);
    opacity: 0.2;
}

body.dark-theme .card::after {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(transparent, transparent 2px, rgba(0, 255, 0, 0.03) 2px, rgba(0, 255, 0, 0.03) 4px);
    pointer-events: none;
}

body.dark-theme .card h2 {
    text-transform: uppercase;
    letter-spacing: 2px;
}

body.dark-theme .card h2::before {
    content: "$ ";
    color: var(--secondary);
}

body.dark-theme #about-content p::before {
    content: "> ";
    color: var(--secondary);
    opacity: 0.8;
}

body.dark-theme #about-content li::before {
    content: "└─ ";
    color: var(--secondary);
    position: absolute;
    left: 0;
    top: 0;
}

body.dark-theme .social-link {
    border-radius: 0;
    background-color: var(--card-bg);
    border-color: var(--border);
}

body.dark-theme .social-link:hover {
    border-color: var(--accent);
    background-color: var(--hover);
    color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.2);
}

body.dark-theme .social-link i {
    color: var(--accent);
}

body.dark-theme .project-card {
    border-radius: 0;
}

body.dark-theme .project-card:hover {
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.4);
}

body.dark-theme .project-image {
    filter: grayscale(60%) brightness(70%) contrast(120%) hue-rotate(60deg);
}

body.dark-theme .project-card:hover .project-image {
    filter: grayscale(30%) brightness(80%) contrast(110%) hue-rotate(30deg);
}

body.dark-theme .project-info h3 {
    text-shadow: 0 0 5px rgba(0, 255, 0, 0.3);
}

body.dark-theme .project-link {
    background-color: transparent;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 0;
}

body.dark-theme .project-link:hover {
    color: var(--dark-bg);
    background-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.4);
}

/* Hacker Mode下的动画效果 */
@keyframes cursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

@keyframes terminalFlicker {
    0% { opacity: 0.98; }
    100% { opacity: 1; }
}

@keyframes glitch {
    0% {
        text-shadow: 0.05em 0 0 rgba(255, 0, 0, 0.75),
                     -0.05em -0.025em 0 rgba(0, 255, 0, 0.75),
                     -0.025em 0.05em 0 rgba(0, 0, 255, 0.75);
    }
    14% {
        text-shadow: 0.05em 0 0 rgba(255, 0, 0, 0.75),
                     -0.05em -0.025em 0 rgba(0, 255, 0, 0.75),
                     -0.025em 0.05em 0 rgba(0, 0, 255, 0.75);
    }
    15% {
        text-shadow: -0.05em -0.025em 0 rgba(255, 0, 0, 0.75),
                     0.025em 0.025em 0 rgba(0, 255, 0, 0.75),
                     -0.05em -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    49% {
        text-shadow: -0.05em -0.025em 0 rgba(255, 0, 0, 0.75),
                     0.025em 0.025em 0 rgba(0, 255, 0, 0.75),
                     -0.05em -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    50% {
        text-shadow: 0.025em 0.05em 0 rgba(255, 0, 0, 0.75),
                     0.05em 0 0 rgba(0, 255, 0, 0.75),
                     0 -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    99% {
        text-shadow: 0.025em 0.05em 0 rgba(255, 0, 0, 0.75),
                     0.05em 0 0 rgba(0, 255, 0, 0.75),
                     0 -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    100% {
        text-shadow: -0.025em 0 0 rgba(255, 0, 0, 0.75),
                     -0.025em -0.025em 0 rgba(0, 255, 0, 0.75),
                     -0.025em -0.05em 0 rgba(0, 0, 255, 0.75);
    }
}

body.dark-theme .profile-info h1:hover {
    animation: glitch 500ms infinite;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .profile {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
    }
    
    footer {
        flex-direction: column;
        align-items: flex-start;
    }
    
    body.dark-theme .terminal-stats {
        flex-direction: column;
        gap: 5px;
    }
}

@media (max-width: 480px) {
    .profile-image img {
        width: 100px;
        height: 100px;
    }
    
    .profile-info h1 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}

/* 全局滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* 文字选择样式 */
::selection {
    background-color: var(--accent);
    color: var(--dark-bg);
}

/* 终端标题栏样式 */
.terminal-header {
    background-color: var(--accent);
    color: var(--dark-bg);
    padding: 8px 15px;
    border-radius: 0;
    margin-bottom: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: 'Hack', monospace;
    font-size: 0.9rem;
    border: 1px solid var(--secondary);
    position: relative;
}

.terminal-title {
    font-weight: bold;
}

.terminal-buttons {
    display: flex;
    gap: 8px;
}

.term-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}

.term-btn-close {
    background-color: #ff5f56;
}

.term-btn-minimize {
    background-color: #ffbd2e;
}

.term-btn-maximize {
    background-color: #27c93f;
}

/* 终端统计信息 */
.terminal-stats {
    display: flex;
    gap: 15px;
    margin-top: 10px;
    font-size: 0.9rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    align-items: center;
    gap: 5px;
    color: var(--secondary);
}

.stat i {
    color: var(--accent);
}

/* 终端容器 */
.terminal-container {
    background-color: var(--dark-bg);
    padding: 15px;
    border: 1px solid var(--accent);
    font-family: 'Hack', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    position: relative;
    overflow-y: auto;
    height: 400px;
    color: var(--text);
}

.terminal-container::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(transparent, transparent 2px, rgba(0, 255, 0, 0.03) 2px, rgba(0, 255, 0, 0.03) 4px);
    pointer-events: none;
}

.terminal-line {
    margin-bottom: 5px;
    color: var(--text);
}

.terminal-output {
    margin-bottom: 10px;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.terminal-input-line {
    display: flex;
    align-items: center;
    margin-top: 5px;
}

.terminal-prompt {
    color: var(--accent);
    margin-right: 8px;
}

#terminal-input {
    background: transparent;
    border: none;
    color: var(--text);
    font-family: 'Hack', monospace;
    font-size: 0.9rem;
    flex: 1;
    outline: none;
}

.terminal-output .error {
    color: #ff5555;
}

.terminal-output .success {
    color: #50fa7b;
}

.terminal-output .info {
    color: #8be9fd;
}

.terminal-output .warning {
    color: #ffb86c;
}

.terminal-output .command {
    color: var(--accent);
    margin-bottom: 5px;
}

.terminal-output .directory {
    color: #bd93f9;
}

.terminal-output .file {
    color: #f8f8f2;
}

/* 终端滚动条样式 */
.terminal-container::-webkit-scrollbar {
    width: 8px;
}

.terminal-container::-webkit-scrollbar-track {
    background: var(--dark-bg);
}

.terminal-container::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 4px;
}

.terminal-container::-webkit-scrollbar-thumb:hover {
    background: var(--secondary);
}

/* 卡片特殊效果 */
.card:hover {
    box-shadow: var(--card-shadow);
}

body.dark-theme .card:hover {
    box-shadow: 0 0 20px rgba(0, 255, 0, 0.2);
}

.card:hover::before {
    opacity: 0;
}

body.dark-theme .card:hover::before {
    opacity: 0.3;
}

/* 黑客风格文本效果 */
@keyframes glitch {
    0% {
        text-shadow: 0.05em 0 0 rgba(255, 0, 0, 0.75), -0.05em -0.025em 0 rgba(0, 255, 0, 0.75), -0.025em 0.05em 0 rgba(0, 0, 255, 0.75);
    }
    14% {
        text-shadow: 0.05em 0 0 rgba(255, 0, 0, 0.75), -0.05em -0.025em 0 rgba(0, 255, 0, 0.75), -0.025em 0.05em 0 rgba(0, 0, 255, 0.75);
    }
    15% {
        text-shadow: -0.05em -0.025em 0 rgba(255, 0, 0, 0.75), 0.025em 0.025em 0 rgba(0, 255, 0, 0.75), -0.05em -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    49% {
        text-shadow: -0.05em -0.025em 0 rgba(255, 0, 0, 0.75), 0.025em 0.025em 0 rgba(0, 255, 0, 0.75), -0.05em -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    50% {
        text-shadow: 0.025em 0.05em 0 rgba(255, 0, 0, 0.75), 0.05em 0 0 rgba(0, 255, 0, 0.75), 0 -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    99% {
        text-shadow: 0.025em 0.05em 0 rgba(255, 0, 0, 0.75), 0.05em 0 0 rgba(0, 255, 0, 0.75), 0 -0.05em 0 rgba(0, 0, 255, 0.75);
    }
    100% {
        text-shadow: -0.025em 0 0 rgba(255, 0, 0, 0.75), -0.025em -0.025em 0 rgba(0, 255, 0, 0.75), -0.025em -0.05em 0 rgba(0, 0, 255, 0.75);
    }
}

.profile-info h1:hover {
    animation: none;
}

body.dark-theme .profile-info h1:hover {
    animation: glitch 500ms infinite;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .terminal-stats {
        flex-direction: column;
        gap: 5px;
    }
    
    .terminal-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    
    .terminal-buttons {
        align-self: flex-end;
    }
}

body.dark-theme .theme-btn {
    border-color: var(--border);
    color: var(--text);
}

body.dark-theme .theme-btn:hover {
    background-color: var(--hover);
    border-color: var(--accent);
}

body.dark-theme .theme-btn.active {
    background-color: var(--accent);
    color: var(--dark-bg);
    border-color: var(--accent);
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.4);
}

body.dark-theme .terminal-container {
    background-color: var(--dark-bg);
    border-color: var(--border);
    color: var(--text);
}

body.dark-theme .terminal-header {
    background-color: var(--dark-bg);
    border-color: var(--border);
    color: var(--text);
}

body.dark-theme .terminal-line {
    color: var(--text);
}

body.dark-theme .terminal-output {
    color: var(--secondary);
}

body.dark-theme .typing-text {
    color: var(--accent);
}

body.dark-theme .stat {
    color: var(--secondary);
}

body.dark-theme .stat i {
    color: var(--accent);
}

/* 浅色模式下的关于我样式 */
#about-content {
    padding: 0.5rem 0;
}

#about-content p {
    margin-bottom: 1.2rem;
    line-height: 1.8;
    color: var(--text);
    font-size: 1.05rem;
}

#about-content p:first-child {
    font-size: 1.1rem;
    color: var(--accent);
    font-weight: 500;
}

#about-content ul {
    margin: 1.5rem 0;
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

#about-content li {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 0.8rem;
    font-size: 1.05rem;
    display: flex;
    align-items: center;
}

#about-content li::before {
    content: "✦";
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 1rem;
    font-weight: bold;
}

#about-content p:last-child {
    padding: 1rem;
    background-color: var(--bg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border);
    color: var(--secondary);
    font-size: 0.95rem;
}

/* Hacker Mode下的关于我样式覆盖 */
body.dark-theme #about-content p::before {
    content: "> ";
    color: var(--secondary);
    opacity: 0.8;
}

body.dark-theme #about-content li {
    padding-left: 1.5rem;
}

body.dark-theme #about-content li::before {
    content: "└─ ";
    color: var(--secondary);
    font-size: inherit;
}

body.dark-theme #about-content p:first-child {
    color: var(--text);
    font-weight: normal;
}

body.dark-theme #about-content p:last-child {
    background-color: var(--dark-bg);
    border-color: var(--border);
    padding: 0;
}

body.dark-theme #about-content ul {
    display: block;
}