/* static/css/style.css - 优化版 */
:root {
    --primary-color: #0056b3;
    --primary-dark: #003d80;
    --text-color: #333;
    --text-light: #666;
    --bg-color: #fff;
    --border-color: #eaeaea;
    --party-red: #d93025;
    
    --badge-bg: #eef4fc;
    --badge-text: #0056b3;
    --badge-gray-bg: #f2f2f2;
    --badge-gray-text: #666;
    --highlight-bg: #e6f3ff;
    --hover-bg: #f8faff;

    --font-en: "Lato", "Helvetica Neue", Arial, sans-serif;
    --font-cn: "Noto Sans SC", "Microsoft YaHei", sans-serif;
    --font-heading: "Merriweather", serif;
    
    --nav-height: 60px;
    --transition-speed: 0.2s;
}

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

body {
    font-family: var(--font-en);
    color: var(--text-color);
    line-height: 1.6;
    font-size: 16px;
    background-color: var(--bg-color);
    padding-top: calc(var(--nav-height) + 30px);
}

body.lang-cn { font-family: var(--font-cn); }
body.lang-cn h1, body.lang-cn h2, body.lang-cn h3 { font-family: var(--font-cn); }

a { 
    color: var(--primary-color); 
    text-decoration: none; 
    transition: color var(--transition-speed); 
}
a:hover { 
    color: var(--primary-dark); 
    text-decoration: underline; 
}

.container { 
    max-width: 900px; 
    margin: 0 auto; 
    padding: 0 20px 40px 20px; 
}

/* === 顶部导航 === */
.nav-bar {
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: var(--nav-height);
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px); 
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    z-index: 1000;
    display: flex; 
    justify-content: center;
}
.nav-container {
    width: 100%; 
    max-width: 900px; 
    padding: 0 20px;
    display: flex; 
    justify-content: space-between; 
    align-items: center;
}
.nav-links a { 
    color: #555; 
    font-weight: 500; 
    margin-left: 20px; 
    font-size: 0.95rem;
    transition: color var(--transition-speed);
}
.nav-links a:hover { 
    color: var(--primary-color); 
    text-decoration: none;
}
.nav-logo { 
    font-family: var(--font-heading); 
    font-weight: 700; 
    font-size: 1.3rem; 
    color: #000; 
}

.lang-btn { 
    border: 1px solid #ddd; 
    padding: 4px 12px; 
    border-radius: 20px; 
    color: #666; 
    font-size: 0.85rem; 
    background: #fff; 
    transition: all var(--transition-speed);
}
.lang-btn:hover { 
    color: var(--primary-color); 
    border-color: var(--primary-color);
    text-decoration: none;
}

/* === Header (屏幕显示) === */
header { 
    display: flex; 
    align-items: flex-start; 
    margin-bottom: 40px; 
    gap: 30px; 
}
.avatar { 
    width: 150px; 
    height: 150px; 
    border-radius: 50%; 
    object-fit: cover; 
    border: 3px solid #f8f8f8; 
    flex-shrink: 0; 
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    transition: transform var(--transition-speed);
}
.avatar:hover {
    transform: scale(1.02);
}
.header-info { 
    flex: 1; 
    display: flex; 
    flex-direction: column; 
    justify-content: center; 
    padding-top: 5px; 
}
.header-info h1 { 
    font-size: 2.2rem; 
    margin-bottom: 10px; 
    line-height: 1.2; 
    color: #111; 
}
.bio-text { 
    color: var(--text-light); 
    margin-bottom: 12px; 
    font-size: 1rem; 
}

.header-meta-row { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    flex-wrap: wrap; 
    gap: 10px; 
}
.meta-left { 
    display: flex; 
    align-items: center; 
    flex-wrap: wrap; 
    gap: 8px; 
}
.meta-right { 
    display: flex; 
    align-items: center; 
    gap: 15px; 
}

.contact-links a { 
    color: #555; 
    display: inline-flex; 
    align-items: center; 
    font-size: 1.1rem;
    transition: all var(--transition-speed);
}
.contact-links a:hover { 
    color: var(--primary-color); 
    transform: translateY(-2px);
}
.link-text { 
    display: none; 
    margin-left: 5px; 
    font-size: 0.9rem; 
} 

/* === 标题 === */
.section-title {
    font-size: 1.5rem; 
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px; 
    margin-bottom: 20px; 
    margin-top: 40px; 
    color: #111;
    scroll-margin-top: 80px; /* 锚点跳转时留出导航栏空间 */
}
body.lang-cn .section-title {
    border-bottom: none; 
    border-left: 5px solid var(--primary-color); 
    padding-left: 15px;
}

/* === 锚点跳转偏移 === */
section[id] {
    scroll-margin-top: 80px;
}

/* === 列表项 === */
.list-item { 
    margin-bottom: 20px; 
    padding: 12px 15px;
    border-left: 3px solid transparent;
    border-radius: 4px;
    transition: all var(--transition-speed);
}
.list-item:hover {
    border-left-color: var(--primary-color);
    background-color: var(--hover-bg);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

/* 教育经历 */
.edu-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: baseline; 
    margin-bottom: 5px; 
}
.edu-school { 
    font-weight: 700; 
    font-size: 1.15rem; 
    color: #000; 
}
.edu-time { 
    color: var(--primary-color); 
    font-weight: 500; 
    font-size: 0.95rem; 
    white-space: nowrap; 
}
.edu-details { 
    font-size: 0.95rem; 
    color: #555; 
    display: flex; 
    flex-wrap: wrap; 
    gap: 15px; 
    margin-top: 4px; 
}

/* 论文 */
.pub-item { 
    padding-left: 12px; 
    border-left: 3px solid transparent; 
    margin-bottom: 18px; 
    transition: all var(--transition-speed);
}
.pub-item:hover { 
    border-left-color: var(--primary-color); 
    background: var(--hover-bg);
}
.pub-title { 
    font-weight: 700; 
    color: #000; 
    font-size: 1.05rem; 
    margin-right: 8px; 
}
.pub-meta-row { 
    font-size: 0.95rem; 
    color: #444; 
    margin-top: 4px; 
    line-height: 1.5; 
}
.me-bold { 
    font-weight: 700; 
    text-decoration: underline;
}
.pub-venue {
    font-style: italic;
    color: var(--primary-color);
}

/* Tag Badge */
.badge {
    display: inline-flex; 
    align-items: center; 
    padding: 1px 8px; 
    border-radius: 4px;
    font-size: 0.75rem; 
    font-weight: 600; 
    background: var(--badge-gray-bg); 
    color: var(--badge-gray-text); 
    border: 1px solid #e0e0e0;
    vertical-align: middle; 
    line-height: 1.4;
    transition: all var(--transition-speed);
}
.badge:hover {
    background: var(--badge-bg);
    color: var(--badge-text);
    border-color: transparent;
}
.badge.highlight { 
    background: var(--badge-bg); 
    color: var(--badge-text); 
    border-color: transparent; 
}
.badge i { 
    margin-right: 4px; 
}
/* 学校Tag样式 */
.school-tag {
    font-weight: normal; 
    color: #666; 
    background: #fff; 
    border: 1px solid #ddd; 
    margin-left: 8px;
}

/* === 奖项 === */
.award-section-title {
    font-size: 0.95rem; 
    color: #888; 
    font-weight: 700; 
    margin: 25px 0 12px 0; 
    border-bottom: 1px dashed #eee; 
    padding-bottom: 4px; 
    letter-spacing: 0.5px;
}
.award-list { 
    display: grid; 
    grid-template-columns: 1fr 1fr; 
    gap: 8px 40px; 
}
.award-item { 
    display: flex; 
    align-items: flex-start;
    font-size: 0.95rem; 
    padding: 4px 0; 
    border-bottom: 1px solid transparent;
    transition: background-color var(--transition-speed);
}
.award-item:hover { 
    background: #fdfdfd;
}
.award-icon-box { 
    width: 20px; 
    text-align: center; 
    margin-right: 10px; 
    flex-shrink: 0; 
    margin-top: 3px; 
}
.award-content { 
    flex: 1; 
    display: flex; 
    justify-content: space-between; 
    align-items: flex-start; 
}
.award-name { 
    color: #333; 
    line-height: 1.5; 
    padding-right: 15px; 
}
.award-year { 
    color: #999; 
    font-size: 0.9rem; 
    white-space: nowrap; 
    flex-shrink: 0; 
    margin-top: 1px; 
    font-family: monospace; 
}
.icon-default { color: #e67e22; }
.party-red { color: var(--party-red); }

/* === 学术服务 === */
.service-list { 
    padding-left: 18px; 
    margin-top: 6px; 
    list-style-type: none;
}
.service-list li { 
    margin-bottom: 8px; 
    color: var(--text-light); 
    position: relative;
    padding-left: 18px;
    line-height: 1.55;
}
.service-list li::before {
    content: "▸";
    color: var(--primary-color);
    position: absolute;
    left: 0;
    font-size: 0.85rem;
}

/* === News === */
.news-item { 
    margin-bottom: 8px; 
    font-size: 0.95rem; 
    display: flex; 
    transition: background-color var(--transition-speed);
    padding: 8px;
    border-radius: 4px;
}
.news-item:hover {
    background: var(--hover-bg);
}
.news-date { 
    font-family: monospace; 
    color: var(--primary-color); 
    margin-right: 12px; 
    font-weight: bold; 
    flex-shrink: 0; 
}

/* === Print Hint === */
.print-hint-box {
    margin-top: 60px; 
    background: #fff8f6; 
    border: 1px dashed #ffccbc; 
    border-radius: 8px; 
    padding: 15px 20px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center;
}
.print-btn {
    background: #003d80; 
    color: #fff; 
    border: none; 
    padding: 8px 20px; 
    border-radius: 4px; 
    font-weight: bold; 
    cursor: pointer; 
    transition: 0.2s; 
    font-size: 0.9rem;
}
.print-btn:hover { 
    background: #002a5a; 
    transform: translateY(-1px);
}

footer { 
    margin-top: 40px; 
    padding-top: 20px; 
    border-top: 1px solid #eee; 
    text-align: center; 
    color: #aaa; 
    font-size: 0.85rem; 
}

.lang-btn { 
    border: 1px solid #ddd; 
    padding: 4px 12px; 
    border-radius: 20px; 
    color: #666; 
    font-size: 0.85rem; 
    background: #fff; 
    transition: all var(--transition-speed);
}
.lang-btn:hover { 
    color: var(--primary-color); 
    border-color: var(--primary-color);
    text-decoration: none;
}
.hidden { display: none !important; }

/* 移动端 */
@media (max-width: 768px) {
    header { 
        flex-direction: column; 
        text-align: center; 
        align-items: center; 
    }
    .avatar { 
        margin-bottom: 20px; 
        width: 140px; 
        height: 140px; 
    }
    .header-meta-row { 
        flex-direction: column; 
        justify-content: center; 
        gap: 15px; 
    }
    .award-list { 
        grid-template-columns: 1fr; 
    } 
    .print-hint-box { 
        flex-direction: column; 
        gap: 15px; 
        text-align: center; 
    }
    .nav-links a {
        margin-left: 10px;
        font-size: 0.85rem;
    }
}

/* === 打印样式优化 (紧凑版) === */
@media print {
    /* 隐藏所有不必要元素 */
    .no-print, .nav-bar, .print-hint-box, .print-hide { 
        display: none !important; 
    }
    
    body { 
        padding-top: 0; 
        background: #fff; 
        -webkit-print-color-adjust: exact; 
        print-color-adjust: exact;
        font-size: 10pt;
    }
    .container { 
        width: 100%; 
        max-width: 100%; 
        padding: 0; 
        margin: 0; 
    }
    a { 
        text-decoration: none; 
        color: #000 !important; 
    }
    
    /* 页边距优化 - 预留空间给页眉页脚 */
    @page { 
        margin: 0.8cm 1cm; 
        size: A4;
        @top-left { content: none; }
        @top-center { content: none; }
        @top-right { content: none; }
        @bottom-left { content: none; }
        @bottom-center { content: none; }
        @bottom-right { content: none; }
    }
    
    /* 头部紧凑布局 */
    header { 
        flex-direction: row !important; 
        align-items: center !important; 
        text-align: left !important;
        margin-bottom: 10px !important; 
        padding-bottom: 8px !important;
        border-bottom: 1px solid #ddd !important;
        gap: 15px !important;
    }
    .avatar { 
        width: 80px !important; 
        height: 80px !important; 
        margin-bottom: 0 !important; 
        border: 1px solid #ccc;
        box-shadow: none;
    }
    .header-info { 
        display: block !important; 
        text-align: left !important;
        padding-top: 0;
    }
    .header-info h1 { 
        font-size: 1.5rem !important; 
        margin-bottom: 3px !important; 
        margin-top: 0; 
    }
    .bio-text { 
        margin-bottom: 3px !important; 
        font-size: 0.85rem !important;
        line-height: 1.4;
    }
    
    /* Meta Row 在打印时调整 */
    .header-meta-row { 
        justify-content: flex-start; 
        align-items: flex-start;
        flex-direction: row !important;
        gap: 15px !important;
        margin-top: 3px;
    }
    
    /* 链接文字显示控制 */
    .link-text.show-print { 
        display: inline !important; 
        color: #444 !important; 
        font-size: 0.8rem !important;
    }
    .contact-links { 
        gap: 12px !important; 
        margin-top: 0;
        display: flex !important;
        flex-wrap: wrap;
    }
    .contact-links a { 
        color: #333 !important; 
        font-size: 0.9rem !important;
    }
    
    /* 社交链接在打印时显示完整信息 */
    .social-links-print {
        display: flex !important;
        flex-wrap: wrap;
        gap: 10px !important;
        margin-top: 5px;
    }
    .social-links-print a {
        display: inline-flex !important;
        align-items: center;
        font-size: 0.8rem !important;
        color: #333 !important;
        text-decoration: none !important;
    }
    .social-links-print a i {
        margin-right: 4px;
    }
    
    /* Section 标题紧凑 */
    .section-title { 
        margin-top: 12px !important; 
        margin-bottom: 8px !important; 
        font-size: 1.1rem !important; 
        border-bottom: 1px solid #999 !important;
        padding-bottom: 3px !important;
    }
    
    /* 列表项紧凑布局 */
    .list-item { 
        margin-bottom: 8px !important; 
        padding: 0 !important;
        border: none !important;
    }
    
    /* 教育经历紧凑 */
    .edu-header { 
        margin-bottom: 2px !important;
    }
    .edu-school { 
        font-size: 1rem !important;
    }
    .edu-time { 
        font-size: 0.85rem !important;
    }
    .edu-details { 
        font-size: 0.85rem !important;
        gap: 10px !important;
        margin-top: 2px !important;
    }
    
    /* 论文紧凑 */
    .pub-item { 
        padding-left: 0;
        border-left: none;
        margin-bottom: 6px !important;
    }
    .pub-title { 
        font-size: 0.95rem !important;
        margin-right: 5px !important;
    }
    .pub-meta-row { 
        font-size: 0.85rem !important;
        margin-top: 2px !important;
        line-height: 1.4;
    }
    
    /* 奖项紧凑 - 双栏 */
    .award-list { 
        grid-template-columns: 1fr 1fr !important; 
        gap: 4px 20px !important;
    }
    .award-item { 
        padding: 2px 0 !important;
        font-size: 0.85rem !important;
    }
    .award-section-title {
        margin: 12px 0 8px 0 !important;
        padding-bottom: 2px !important;
    }
    
    /* 学术服务紧凑 */
    .service-list {
        padding-left: 10px;
        margin-top: 2px;
    }
    .service-list li { 
        margin-bottom: 3px !important;
        font-size: 0.85rem !important;
        padding-left: 15px;
    }
    .service-list li::before {
        color: #333;
    }
    
    /* 新闻紧凑 */
    .news-item {
        padding: 2px 0;
        margin-bottom: 4px !important;
        font-size: 0.85rem !important;
    }
    .news-date {
        font-size: 0.8rem !important;
        margin-right: 8px;
    }
    
    /* 底部紧凑 */
    footer { 
        margin-top: 15px !important; 
        padding-top: 10px !important; 
        border-top: 1px solid #999 !important;
        font-size: 0.8rem !important;
    }
    .footer-content-print {
        display: flex !important;
        justify-content: space-between;
        color: #333;
    }
    
    /* 分页控制 - 允许标题与内容一起分页，只保护单个条目不被断开 */
    section { 
        break-inside: auto;
        break-after: auto;
    }
    /* 保护单个条目不被断开 */
    .pub-item, .award-item, .edu-item, li { 
        break-inside: avoid; 
        page-break-inside: avoid;
    }
    /* 允许 section 之间分页 */
    .section-title {
        break-after: auto;
    }
}