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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

.top-nav {
    border-bottom: 1px solid #e7e7e7;
    background: #fff;
}

.nav-inner {
    display: flex;
    align-items: center;
    gap: 34px;
    height: 42px;
    font-size: 14px;
}

.nav-inner a {
    color: #555;
    text-decoration: none;
}

.nav-inner a:hover,
.nav-brand {
    color: #222;
    font-weight: 600;
}

/* 主要内容区域 */
main {
    min-height: calc(100vh - 150px);
}

.page-layout {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 68px;
    padding-top: 38px;
    padding-bottom: 60px;
}

.profile-sidebar {
    color: #333;
    font-size: 14px;
    padding-top: 6px;
}

.profile-sidebar h1 {
    font-size: 1.35em;
    margin: 14px 0 4px;
    color: #2c3e50;
}

.profile-sidebar p {
    margin-bottom: 12px;
}

.lab-line {
    color: #555;
    margin-bottom: 22px;
}

.sidebar-bio {
    color: #444;
    line-height: 1.55;
}

.profile-links {
    list-style: none;
    margin-top: 18px;
}

.profile-links li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.profile-icon {
    width: 16px;
    flex: 0 0 16px;
    color: #333;
    text-align: center;
}

.profile-sidebar a,
.bio a {
    color: #0066cc;
    text-decoration: none;
}

.profile-sidebar a:hover,
.bio a:hover {
    text-decoration: underline;
}

.content-column {
    padding-top: 2px;
}

.content-section {
    margin-bottom: 30px;
}

.content-section h2 {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.55em;
    margin-bottom: 14px;
    color: #2c3e50;
    border-bottom: 1px solid #e7e7e7;
    padding-bottom: 8px;
}

.section-icon {
    font-size: 0.95em;
}

/* 个人资料 */
.portrait {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    display: block;
    object-fit: cover;
    object-position: center top;
}

/* 个人简介 */
.bio {
    line-height: 1.8;
}

.bio p {
    margin-bottom: 15px;
}

.news-list {
    padding-left: 22px;
}

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

/* 页脚 */
footer {
    background-color: #f8f9fa;
    text-align: center;
    padding: 22px 20px;
    border-top: 1px solid #e7e7e7;
    color: #666;
    font-size: 14px;
}

.visitor-widget {
    width: 300px;
    max-width: 100%;
    margin: 0 auto 16px;
    text-align: center;
}

.visitor-widget img,
.visitor-widget canvas,
.visitor-widget iframe {
    max-width: 100%;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-inner {
        justify-content: center;
        gap: 22px;
    }

    .page-layout {
        grid-template-columns: 1fr;
        gap: 32px;
        padding-top: 28px;
    }

    .profile-sidebar {
        text-align: center;
    }

    .portrait {
        margin: 0 auto;
    }

    .content-section h2 {
        font-size: 1.5em;
    }
}