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

/* CSS变量定义 - 浅色模式 */
:root {
    --bg-color: #f5f5f5;
    --text-color: #333;
    --header-bg: transparent;
    --header-border: rgba(224, 224, 224, 0.3);
    --card-bg: #fff;
    --card-border: #e0e0e0;
    --nav-text: #666;
    --nav-hover: #333;
    --quote-color: #333;
    --greeting-color: #666;
    --social-bg: #fff;
    --social-text: #666;
    --social-hover: #333;
    --btn-bg: #fff;
    --btn-text: #333;
    --btn-border: #e0e0e0;
    --btn-hover: #f8f9fa;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* 深色模式变量 - 使用PaperMod主题的.dark类 */
.dark {
    --bg-color: #1a1a1a;
    --text-color: #fff;
    --header-bg: transparent;
    --header-border: rgba(64, 64, 64, 0.3);
    --card-bg: #2d2d2d;
    --card-border: #404040;
    --nav-text: #ccc;
    --nav-hover: #fff;
    --quote-color: #fff;
    --greeting-color: #ccc;
    --social-bg: #2d2d2d;
    --social-text: #ccc;
    --social-hover: #fff;
    --btn-bg: #2d2d2d;
    --btn-text: #fff;
    --btn-border: #404040;
    --btn-hover: #3a3a3a;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 4px 12px rgba(0, 0, 0, 0.4);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 头部样式 - 与主页面融合 */
.header {
    background-color: transparent;
    border-bottom: none;
    padding: 0.5rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

/* 滚动时的头部样式 */
.header.scrolled {
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--header-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 50px;
}

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

.logo h1 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    transition: color 0.3s ease;
}

.logo .fa-moon,
.logo .fa-sun {
    color: var(--nav-text);
    font-size: 1.2rem;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
}

.logo .fa-moon:hover,
.logo .fa-sun:hover {
    color: var(--nav-hover);
    transform: scale(1.1);
}

/* 导航样式 */
.nav {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--nav-text);
    font-size: 0.9rem;
    transition: color 0.3s ease;
}

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

.nav-link i {
    font-size: 1rem;
}

/* 主要内容区域 */
.main-content {
    max-width: 800px;
    margin: 0 auto;
    padding: 1rem 2rem 3rem 2rem;
    text-align: center;
}

/* 个人资料区域 */
.profile-section {
    margin-bottom: 2rem;
}

.profile-image {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
}

.profile-image img {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--card-bg);
    box-shadow: var(--shadow-hover);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    display: block;
    margin: 0 auto;
}

.quote {
    margin-bottom: 1.5rem;
}

.quote p {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--quote-color);
    font-style: italic;
    font-family: Georgia, serif;
    transition: color 0.3s ease;
}

/* 打字机效果 - 使用 Typed.js */
#typing-text {
    margin: 0 auto;
    text-align: center;
    min-height: 1.5em; /* 确保有足够的高度显示光标 */
    display: inline-block; /* 确保光标在同一行 */
}

/* 自定义 Typed.js 光标样式 */
.typed-cursor {
    color: var(--quote-color) !important;
    font-weight: normal !important;
    animation: typedjsBlink 1s infinite !important;
    display: inline !important; /* 确保光标在同一行 */
    vertical-align: baseline !important; /* 对齐基线 */
}

@keyframes typedjsBlink {
    50% { opacity: 0; }
}

/* 确保打字机容器正确显示 */
.typed-cursor.typed-cursor--blink {
    animation: typedjsBlink 1s infinite !important;
}

.greeting {
    margin-bottom: 1.5rem;
}

.greeting-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    font-size: 1rem;
    color: var(--greeting-color);
    transition: color 0.3s ease;
}

.greeting-item i {
    color: #ffd700;
    font-size: 1.1rem;
}

/* 社交媒体链接 */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: transparent;
    color: var(--social-text);
    text-decoration: none;
    transition: all 0.3s ease;
    border: 1px solid var(--btn-border);
}

.social-link:hover {
    transform: translateY(-2px);
    background-color: var(--btn-hover);
    color: var(--social-hover);
    border-color: var(--social-hover);
}

.social-link.placeholder {
    cursor: default;
}

.social-link.placeholder:hover {
    transform: none;
    background-color: transparent;
    border-color: var(--btn-border);
}

.zhihu-icon {
    font-size: 1.2rem;
    font-weight: bold;
    color: #0084ff;
}

/* 分类按钮 */
.category-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    align-items: center;
}

.button-row {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.button-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    max-width: 400px;
    margin: 0 auto;
}

.category-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: transparent;
    color: var(--btn-text);
    text-decoration: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 1px solid var(--btn-border);
}

.category-btn:hover {
    transform: translateY(-2px);
    background-color: var(--btn-hover);
    border-color: var(--btn-text);
}

/* 活跃导航链接样式 */
.nav-link.active {
    color: var(--nav-hover);
    font-weight: 500;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        padding: 0 1rem;
    }
    
    .nav {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .main-content {
        padding: 2rem 1rem;
    }
    
    .button-row {
        flex-direction: column;
        align-items: center;
    }
    
    .button-grid {
        grid-template-columns: 1fr;
        max-width: 200px;
    }
    
    .category-btn {
        width: 200px;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.2rem;
    }
    
    .nav-link span {
        display: none;
    }
    
    .nav {
        gap: 1.5rem;
    }
    
    .profile-image {
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .profile-image img {
        width: 120px;
        height: 120px;
        display: block;
        margin: 0 auto;
    }
    
    .quote p {
        font-size: 1rem;
    }
}