/* 浅蓝色背景 / 浅色文字（默认白天模式） */
body {
    font-family: 'PingFang SC', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    line-height: 1.7;
    margin: 0;
    padding: 30px 14px;
    background-color: #f7f9fc;
    color: #333;
}

.container {
    flex: 1;
    min-width: 0;
    max-width: 900px;
    margin: auto;
    background: #ffffff;
    padding: 26px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    overflow-wrap: break-word;
}

h1 {
    color: #2c3e50;
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 10px;
    border-bottom: 3px solid #3498db;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.logo {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.entry {
    padding: 20px 0;
    border-bottom: 1px dashed #ecf0f1;
    margin-bottom: 25px;
}

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

/* 简历页英文介绍为最后一条记录，去掉其下方虚线 */
.entry.entry-last {
    border-bottom: none;
}

.entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
}

.entry-title {
    font-size: 1.5em;
    color: #2980b9;
    font-weight: bold;
}

.entry-date {
    font-size: 0.9em;
    color: #7f8c8d;
}

.entry-date a {
    color: #3498db;
    text-decoration: none;
}

/* AI 辅助标注：整理 / 扩写 / 摘要等 */
.ai-note {
    font-size: 0.85em;
    color: #95a5a6;
    margin-top: 0.85em;
    line-height: 1.5;
}

.ai-note a {
    color: #7f8c8d;
}

.entry-date a:hover {
    text-decoration: underline;
}

.entry-content p {
    margin-top: 5px;
}

.empty {
    color: #7f8c8d;
    font-style: italic;
}

/* 技能盒子（简历页沿用） */
.skills-box {
    margin: 15px 0;
    padding: 15px 20px;
    background: #f4f8fb;
    border-left: 4px solid #3498db;
    border-radius: 4px;
}

.skills-box-title {
    display: block;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 8px;
}

.skills-list {
    margin: 0;
    padding-left: 20px;
}

.skills-list li {
    margin-bottom: 8px;
}

/* 底部链接 */
.footer-description {
    font-size: 1em;
    color: #6c7a89;
    margin-bottom: 10px;
    font-weight: bold;
}

.footer-links {
    text-align: center;
    padding-top: 20px;
    margin-top: 30px;
    border-top: 1px solid #ddd;
}

.footer-links a {
    color: #3498db;
    text-decoration: none;
    margin: 0 15px;
    font-size: 0.95em;
    transition: color 0.3s;
    word-break: break-all;
    overflow-wrap: anywhere;
}

.footer-links a:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* 详情页返回链接 */
.back-link {
    display: inline-block;
    margin-bottom: 20px;
    color: #3498db;
    text-decoration: none;
    font-size: 0.95em;
    transition: color 0.3s;
}

.back-link:hover {
    color: #2980b9;
    text-decoration: underline;
}

/* ------------------------------------------------ */
/* 左侧纵向导航栏（侧边栏）                          */
/* ------------------------------------------------ */
.layout {
    display: flex;
    align-items: flex-start;
    gap: 26px;
    max-width: 1150px;
    margin: 0 auto;
}

.sidenav {
    position: sticky;
    top: 40px;
    flex-shrink: 0;
    width: 140px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 10px;
}

.sidenav a {
    color: #3498db;
    text-decoration: none;
    font-size: 0.95em;
    padding: 8px 16px;
    border-radius: 4px;
    border: 1px solid transparent;
    transition: all 0.3s;
    text-align: center;
}

.sidenav a:hover {
    border-color: #3498db;
    background: rgba(52, 152, 219, 0.08);
}

.sidenav a.active {
    background: #3498db;
    color: #ffffff;
    font-weight: bold;
}

/* 窄屏时导航回到顶部，纵向排列 */
@media (max-width: 720px) {
    .layout {
        flex-direction: column;
        gap: 20px;
    }

    .sidenav {
        position: static;
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        border-bottom: 1px solid #ddd;
        padding-bottom: 12px;
    }
}

/* ------------------------------------------------ */
/* 黑暗模式：使用 prefers-color-scheme 媒体查询       */
/* ------------------------------------------------ */
@media (prefers-color-scheme: dark) {

    body {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }

    .container {
        background: #2c2c2c;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
    }

    h1 {
        color: #ffffff;
        border-bottom: 3px solid #3498db;
    }

    .entry {
        border-bottom: 1px dashed #444444;
    }

    .entry-title {
        color: #92c0f0;
    }

    .entry-date {
        color: #b0b0b0;
    }

    .entry-date a {
        color: #92c0f0;
    }

    .entry-date a:hover {
        color: #3498db;
    }

    .ai-note {
        color: #888888;
    }

    .ai-note a {
        color: #a0a0a0;
    }

    .skills-box {
        background: #232323;
        border-left: 4px solid #3498db;
    }

    .skills-box-title {
        color: #ffffff;
    }

    .footer-links {
        border-top: 1px solid #444;
    }

    .footer-links a {
        color: #3498db;
    }

    .footer-links a:hover {
        color: #92c0f0;
    }

    .sidenav a {
        color: #92c0f0;
    }

    .sidenav a:hover {
        border-color: #92c0f0;
        background: rgba(146, 192, 240, 0.1);
    }

    .sidenav a.active {
        background: #3498db;
        color: #ffffff;
    }

    @media (max-width: 720px) {
        .sidenav {
            border-bottom: 1px solid #444;
        }
    }

    .back-link {
        color: #92c0f0;
    }

    .back-link:hover {
        color: #3498db;
    }
}