:root {
    --primary-color: #2c3e50;
    --accent-color: #e28353; /* Keep your original accent color */
    --bg-color: #ffffff;
    --text-color: #4a5568;
    --light-bg: #f8f9fa;
    --border-radius: 12px;
}

body {
    font-family: 'Inter', sans-serif;
    font-size: 16px;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-color);
    text-decoration: none;
}

/* Header Section */
#header {
    padding-top: 60px;
    padding-bottom: 40px;
    border-bottom: 1px solid #eaeaea;
    margin-bottom: 40px;
}

.profile-img {
    width: 100%;
    max-width: 200px;
    border-radius: 50%; /* Circle portrait */
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.profile-img:hover {
    transform: scale(1.02);
}

.name-title {
    font-size: 36px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 5px;
}

.email-text {
    font-family: 'Courier New', monospace;
    color: #718096;
    font-size: 16px;
    margin-bottom: 15px;
}

/* Social Icons */
.social-links {
    margin-top: 15px;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-bg);
    color: var(--primary-color);
    margin-right: 10px;
    font-size: 18px;
    transition: all 0.2s;
}

.social-btn:hover {
    background-color: var(--primary-color);
    color: #fff;
    transform: translateY(-2px);
}

.cv-link {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: white !important;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
    margin-right: 10px;
}

.cv-link:hover {
    background-color: var(--accent-color);
}

/* Section Headers */
h1 {
    font-size: 24px;
    font-weight: 700;
    color: #1a202c;
    margin-bottom: 20px;
    position: relative;
    padding-left: 15px;
}

h1::before {
    content: '';
    position: absolute;
    left: 0;
    top: 5px;
    bottom: 5px;
    width: 4px;
    background-color: var(--accent-color);
    border-radius: 2px;
}

/* Paper List Styling */
.paper-item {
    padding: 25px;
    margin-bottom: 25px;
    border-radius: var(--border-radius);
    background: #fff;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.paper-item:hover {
    background: #fff;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border-color: #f0f0f0;
    transform: translateY(-2px);
}

.paper-title {
    font-size: 18px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 5px;
    line-height: 1.3;
}

.paper-authors {
    font-size: 15px;
    color: #4a5568;
    margin-bottom: 8px;
}

.paper-authors b {
    color: #1a202c;
    font-weight: 600;
}

/* Badges for Conferences */
.conf-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    background-color: #edf2f7;
    color: #2d3748;
    margin-bottom: 8px;
}

.conf-badge.highlight {
    background-color: #fff5f0; /* Light orange bg */
    color: #c05621;
    border: 1px solid #fed7d7;
}

/* Links Buttons for Papers */
.resource-link {
    font-size: 13px;
    font-weight: 600;
    margin-right: 12px;
    display: inline-flex;
    align-items: center;
    color: #718096;
}

.resource-link i {
    margin-right: 4px;
}

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

/* Images and Videos */
.paper-media {
    width: 100%;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

video, img.img-fluid {
    display: block;
    width: 100%;
}

/* Highlight Color Helper */
.highlight-color {
    color: var(--accent-color);
}

/* Layout Helpers */
.container {
    max-width: 960px; /* Make it slightly narrower for better reading */
}

.vspace-top { margin-top: 40px; }

/* 基础动画类 */
.hover-fx {
    display: inline-block; /* transform 属性需要 inline-block 或 block 才能生效 */
    text-decoration: none; /* 推荐：先去掉默认下划线，完全由我们控制 */
    transition: transform 0.25s cubic-bezier(.5, 1.7, .5, 1), 
                text-shadow 0.25s ease;
    /* 默认发光色，防止未定义变量时出错 */
    --glow-color: rgba(0, 0, 0, 0.2); 
}

/* 悬停效果 */
.hover-fx:hover {
    /* 你的原始变换参数 */
    transform: scale(1.06) rotate(-1deg) skewX(-2deg);
    /* 使用 CSS 变量调用颜色 */
    text-shadow: 0 2px 12px var(--glow-color);
    
    /* 如果希望文字本身有下划线，加上这个；如果觉得不需要可以删掉 */
    /* text-decoration: underline; */
}

/* 针对内部包含 bold 标签的情况，确保继承样式（可选，视你的全局CSS而定） */
.hover-fx b {
    display: inline-block; /* 确保 b 标签也能正确响应布局 */
}

/* Footer */
#footer {
    margin-top: 80px;
    padding: 40px 0;
    border-top: 1px solid #eaeaea;
    text-align: center;
    font-size: 14px;
    color: #a0aec0;
}