:root {
    --color-primary: #FAFAFA;
    --color-secondary: #E0E0E0;
    --color-accent: #8AAAE5;
    --color-text: #424242;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--color-primary);
    color: var(--color-text);
    line-height: 1.6;
}

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

/* 顶部区域 */
.header {
    padding: 60px 0;
    text-align: center;
}

.logo {
    font-size: 2.5rem;
    color: var(--color-text);
    margin-bottom: 1.5rem;
}

.intro {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.intro-quote {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--color-text);
    margin-bottom: 0.8rem;
    font-weight: 300;
}

.intro-author {
    font-size: 1rem;
    color: var(--color-text);
    opacity: 0.8;
    font-style: italic;
}

/* 相册区域 */
.gallery {
    margin: 40px auto;
    max-width: 600px;
    width: 50%;
}

.gallery-title {
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.8rem;
    color: var(--color-text);
    font-weight: 500;
}

.gallery-container {
    aspect-ratio: 16 / 9;  /* 设置固定的宽高比 */
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.gallery-item {
    width: 100%;
    height: 100%;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease, opacity 0.5s ease-in-out;
}

.gallery-item:hover img {
    transform: scale(1.02);  /* 鼠标悬停时轻微放大效果 */
}

/* 社交链接 */
.social-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin: 40px 0;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: transform 0.3s ease;
}

.social-link:hover {
    transform: scale(1.1);
}

.icon {
    width: 24px;
    height: 24px;
    fill: var(--color-text);
}

.bilibili:hover .icon {
    fill: #00A1D6;  /* 哔哩哔哩的品牌色 */
}

.weibo:hover .icon {
    fill: #E6162D;  /* 微博的品牌色 */
}

/* 底栏 */
.footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 1px solid var(--color-secondary);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .social-links {
        flex-wrap: wrap;
    }
    
    .logo {
        font-size: 2rem;
    }

    .gallery {
        width: 90%;
    }

    .intro-quote {
        font-size: 1rem;
        line-height: 1.6;
    }
    
    .intro-author {
        font-size: 0.9rem;
    }
}

/* AI助手对话区 */
.ai-chat {
    max-width: 800px;
    margin: 40px auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    padding: 20px;
}

.chat-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.chat-messages {
    min-height: 100px;
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
}

.message {
    margin-bottom: 15px;
    padding: 10px 15px;
    border-radius: 8px;
    max-width: 80%;
}

.message.assistant {
    background: var(--color-accent);
    color: white;
    margin-right: auto;
}

.message.user {
    background: var(--color-secondary);
    margin-left: auto;
}

.chat-input {
    display: flex;
    gap: 10px;
}

.chat-input input {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--color-secondary);
    border-radius: 6px;
    font-size: 1rem;
}

.send-btn {
    padding: 10px 20px;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.send-btn:hover {
    background: #7090d0;
}

/* 邮箱图标相关样式 */
.email {
    position: relative;
}

.email-tooltip {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-text);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    white-space: nowrap;
    pointer-events: none;
}

.email-tooltip::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 50%;
    transform: translateX(-50%);
    border-width: 0 6px 6px 6px;
    border-style: solid;
    border-color: transparent transparent var(--color-text) transparent;
}

.email:hover .email-tooltip {
    opacity: 1;
    visibility: visible;
}

.email:hover .icon {
    fill: #4A7CF6;  /* QQ邮箱的品牌色 */
}

/* 点击复制效果 */
.email.copied .email-tooltip::after {
    content: '已复制!';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    border-radius: 6px;
    animation: fadeOut 5s forwards;
}