/* 
 * 个人网站样式
 * 设计风格：极简主义，参考原研哉设计理念
 */

:root {
    --background: #ffffff;
    --text: #333333;
    --text-light: #666666;
    --primary: #000000;
    --secondary: #f5f5f5;
    --border: #e0e0e0;
    --spacing-unit: 24px;
    --container-padding: 120px;
    --transition-base: all 0.3s ease;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    --font-serif: 'Noto Serif SC', 'Noto Serif', serif;
    --font-sans: 'Noto Sans SC', 'Noto Sans', sans-serif;
    
    /* 学校专属颜色 */
    --ruc-red: rgb(174, 11, 42);
    --hust-blue: rgb(0, 74, 152);
}

/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text);
    line-height: 1.6;
    background-color: var(--background);
    overflow-x: hidden;
}

/* Grid System */
.container {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.grid {
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: var(--spacing-unit);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-image: url('../images/首页.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 半透明黑色遮罩，增加文字可读性 */
    z-index: 1;
}

.hero h1, .hero p, .hero .role-carousel {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-unit);
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-unit);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero-content {
    grid-column: 2 / span 6;
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s forwards;
    position: relative;
    z-index: 2;
    text-align: center;
    width: 100%;
    padding: 0 var(--spacing-unit);
}

/* Role Carousel */
.role-carousel {
    position: relative;
    height: 1.5em;
    overflow: hidden;
    margin-top: 1rem;
    z-index: 2;
}

.role-item {
    position: absolute;
    width: 100%;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-base);
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.role-item.active {
    opacity: 1;
    transform: translateY(0);
    font-weight: bold;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
}

/* Card Design */
.card {
    background-color: var(--background);
    border-radius: 8px;
    padding: 32px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Navigation */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    padding: var(--spacing-unit) 0;
    border-bottom: 1px solid var(--border);
    transition: all 0.3s ease;
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
}

.logo {
    font-size: 2.5rem;
    letter-spacing: -1px;
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: translateY(-2px);
}

.nav-right {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    font-size: 1rem;
    font-weight: 400;
    position: relative;
    padding-bottom: 4px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Parallax Scrolling */
.parallax {
    position: relative;
    overflow: hidden;
}

.parallax-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 120%;
    z-index: -1;
    transform: translateY(0);
    transition: transform 0.5s ease-out;
}

/* Module Container */
.module {
    padding: var(--section-padding);
    margin-bottom: var(--spacing-unit);
}

/* SVG Icons */
.icon {
    width: 24px;
    height: 24px;
    transition: var(--transition-base);
}

.icon:hover {
    transform: scale(1.1);
}

/* 基础排版 */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Noto Serif SC', 'Noto Serif', serif;
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: var(--spacing-unit);
}

h2 {
    font-size: 2rem;
    letter-spacing: -0.01em;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-unit);
}

a {
    color: var(--text);
    text-decoration: none;
    transition: var(--transition-base);
}

a:hover {
    color: var(--accent);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 语言切换按钮 */
.lang-switch {
    display: flex;
    align-items: center;
    margin-left: var(--spacing-unit);
}

.lang-switch a {
    padding: 0 var(--spacing-unit);
    font-size: 0.9rem;
}

.lang-switch .divider {
    color: var(--text-light);
    font-size: 0.9rem;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 1px;
    background-color: var(--text);
    transition: var(--transition-base);
}

/* 章节通用样式 */
section {
    padding: var(--section-padding) 0;
}

.section-header {
    margin-bottom: var(--spacing-unit);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.line {
    width: 40px;
    height: 1px;
    background-color: var(--accent);
    margin-top: var(--spacing-unit);
}

/* 页面头部 */
.page-header {
    padding: calc(var(--spacing-unit) * 6 + 60px) 0 var(--spacing-unit) * 2;
    position: relative;
}

/* 删除蓝线
.page-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 2px;
    background-color: var(--primary);
}
*/

.page-header h1 {
    font-size: 2.5rem;
    font-weight: 500;
    text-align: center;
    margin-bottom: var(--spacing-unit);
    letter-spacing: -0.5px;
}

/* 轮播图部分 */
.carousel-section {
    padding: var(--spacing-unit) 0;
    background-color: var(--border);
}

.carousel-container {
    position: relative;
    overflow: hidden;
}

.carousel {
    position: relative;
    height: 500px;
}

.carousel-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.carousel-item.active {
    opacity: 1;
    visibility: visible;
}

.carousel-content {
    flex: 1;
    padding: var(--spacing-unit);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.carousel-content h2 {
    margin-bottom: var(--spacing-unit);
}

.carousel-content p {
    margin-bottom: var(--spacing-unit);
    max-width: 500px;
}

.carousel-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-image .image-placeholder {
    width: 90%;
    aspect-ratio: 16/9;
}

.carousel-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: var(--spacing-unit);
}

.carousel-prev,
.carousel-next {
    background: none;
    border: 1px solid var(--text);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-base);
}

.carousel-prev:hover,
.carousel-next:hover {
    background-color: var(--text);
    color: var(--background);
}

.carousel-dots {
    display: flex;
    gap: var(--spacing-unit);
    margin: 0 var(--spacing-unit);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--border);
    cursor: pointer;
    transition: var(--transition-base);
}

.dot.active {
    background-color: var(--text);
}

.btn-more {
    display: inline-block;
    padding: var(--spacing-unit) var(--spacing-unit);
    border: 1px solid var(--text);
    transition: var(--transition-base);
    align-self: flex-start;
}

.btn-more:hover {
    background-color: var(--text);
    color: var(--background);
}

/* 介绍部分 */
.intro-section {
    padding: var(--section-padding) 0;
}

.intro-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-unit);
}

.intro-item {
    text-align: center;
    padding: var(--spacing-unit);
    transition: var(--transition-base);
}

.intro-item:hover {
    background-color: var(--border);
}

.intro-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-unit);
}

.intro-item h3 {
    margin-bottom: var(--spacing-unit);
}

.intro-item p {
    margin-bottom: 0;
}

/* 最新研究部分 */
.latest-research {
    background-color: var(--border);
    padding: var(--section-padding) 0;
}

.research-preview {
    max-width: 800px;
    margin: 0 auto;
}

.research-item {
    display: flex;
    gap: var(--spacing-unit);
    align-items: center;
}

.research-image {
    flex: 0 0 300px;
}

.research-content {
    flex: 1;
}

.research-meta {
    color: var(--text-light);
    margin-bottom: var(--spacing-unit);
}

.link-arrow {
    position: relative;
    padding-right: 20px;
    font-weight: 500;
}

.link-arrow::after {
    content: '→';
    position: absolute;
    right: 0;
    transition: var(--transition-base);
}

.link-arrow:hover::after {
    right: -5px;
}

/* 关于部分 */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-unit);
    align-items: center;
}

.about-text p:last-child {
    margin-bottom: 0;
}

.image-placeholder {
    width: 100%;
    aspect-ratio: 3/4;
    background-color: var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
}

/* 教育背景 */
.education-section {
    background-color: var(--border);
    padding: var(--section-padding) 0;
}

.timeline {
    position: relative;
    max-width: 800px;
    margin: var(--spacing-unit) auto 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 120px;
    height: 100%;
    width: 1px;
    background-color: var(--border);
}

.timeline-item {
    position: relative;
    padding-left: 160px;
    margin-bottom: var(--spacing-unit);
}

.timeline-dot {
    position: absolute;
    left: 116px;
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent);
}

.timeline-date {
    position: absolute;
    left: 0;
    top: 0;
    width: 100px;
    text-align: right;
    color: var(--text-light);
}

.timeline-content {
    background-color: var(--background);
    padding: var(--spacing-unit);
}

.timeline-content h3 {
    margin-bottom: var(--spacing-unit);
}

.timeline-content p {
    margin-bottom: var(--spacing-unit);
}

.timeline-content p:last-child {
    margin-bottom: 0;
}

/* 技能部分 */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-unit);
}

.skill-category h3 {
    margin-bottom: var(--spacing-unit);
    padding-bottom: var(--spacing-unit);
    border-bottom: 1px solid var(--border);
}

.skill-list li {
    margin-bottom: var(--spacing-unit);
    position: relative;
    padding-left: 20px;
}

.skill-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* 研究兴趣 */
.interests-section {
    background-color: var(--border);
    padding: var(--section-padding) 0;
}

.interests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-unit);
}

.interest-item {
    background-color: var(--background);
    padding: var(--spacing-unit);
    transition: var(--transition-base);
}

.interest-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.interest-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-unit);
}

.interest-item h3 {
    margin-bottom: var(--spacing-unit);
}

.interest-item p {
    margin-bottom: 0;
}

/* 研究方向 */
.research-areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-unit);
    margin-top: var(--spacing-unit);
}

.research-area {
    text-align: center;
    padding: var(--spacing-unit);
    transition: var(--transition-base);
}

.research-area:hover {
    background-color: var(--border);
}

.research-area-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-unit);
}

.research-area h3 {
    margin-bottom: var(--spacing-unit);
}

.research-area p {
    margin-bottom: 0;
}

/* 学术论文 */
.publications {
    padding: var(--section-padding) 0;
}

.publications-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-unit);
}

.publication-item {
    display: flex;
    gap: var(--spacing-unit);
    padding-bottom: var(--spacing-unit);
    border-bottom: 1px solid var(--border);
}

.publication-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.publication-meta {
    flex: 0 0 100px;
    text-align: right;
}

.publication-year {
    display: block;
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: var(--spacing-unit);
}

.publication-type {
    display: block;
    color: var(--text-light);
    font-size: 0.9rem;
}

.publication-content {
    flex: 1;
}

.publication-authors {
    color: var(--text-light);
    margin-bottom: var(--spacing-unit);
}

.publication-journal {
    font-style: italic;
    margin-bottom: var(--spacing-unit);
}

.publication-abstract {
    margin-bottom: var(--spacing-unit);
}

.publication-links {
    display: flex;
    gap: var(--spacing-unit);
}

/* 工作论文 */
.working-papers {
    background-color: var(--border);
    padding: var(--section-padding) 0;
}

.working-papers-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-unit);
}

.working-paper-item {
    background-color: var(--background);
    padding: var(--spacing-unit);
}

.working-paper-item h3 {
    margin-bottom: var(--spacing-unit);
}

.working-paper-status {
    color: var(--text-light);
    font-style: italic;
    margin-top: var(--spacing-unit);
}

/* 项目部分 */
.projects-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-unit);
}

.project-item {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-unit);
}

.project-image {
    width: 100%;
}

.project-image .image-placeholder {
    aspect-ratio: 16/9;
}

.project-meta {
    display: flex;
    gap: var(--spacing-unit);
    margin-bottom: var(--spacing-unit);
}

.project-year, .project-type {
    color: var(--text-light);
}

.project-content h2 {
    margin-bottom: var(--spacing-unit);
}

.project-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-unit);
    margin-top: var(--spacing-unit);
}

.project-detail h3 {
    margin-bottom: var(--spacing-unit);
    padding-bottom: var(--spacing-unit);
    border-bottom: 1px solid var(--border);
}

.project-detail ul {
    list-style: disc;
    padding-left: 20px;
}

.project-detail li {
    margin-bottom: var(--spacing-unit);
}

/* 技能展示 */
.skills-showcase {
    background-color: var(--border);
    padding: var(--section-padding) 0;
}

.skills-showcase-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-unit);
}

.skill-showcase-item {
    background-color: var(--background);
    padding: var(--spacing-unit);
}

.skill-showcase-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-unit);
}

.skill-showcase-item h3 {
    margin-bottom: var(--spacing-unit);
    padding-bottom: var(--spacing-unit);
    border-bottom: 1px solid var(--border);
}

.skill-showcase-item ul {
    list-style: disc;
    padding-left: 20px;
}

.skill-showcase-item li {
    margin-bottom: var(--spacing-unit);
}

/* 联系部分 */
.contact-intro {
    max-width: 800px;
    margin: 0 auto var(--spacing-unit);
    text-align: center;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-unit);
}

.contact-list {
    margin-top: var(--spacing-unit);
}

.contact-list li {
    display: flex;
    gap: var(--spacing-unit);
    margin-bottom: var(--spacing-unit);
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.5rem;
    flex: 0 0 auto;
}

.contact-detail {
    flex: 1;
}

.contact-label {
    display: block;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-unit);
}

.contact-value {
    font-size: 1.1rem;
}

.social-media {
    margin-top: var(--spacing-unit);
}

.social-media h3 {
    margin-bottom: var(--spacing-unit);
}

.social-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-unit);
}

.social-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-unit);
    padding: var(--spacing-unit) 0;
    border-bottom: 1px solid var(--border);
    transition: var(--transition-base);
}

.social-link:hover {
    padding-left: var(--spacing-unit);
    border-color: var(--accent);
}

.social-icon {
    font-weight: 500;
}

/* 可用性部分 */
.availability-section {
    background-color: var(--border);
    padding: var(--section-padding) 0;
}

.availability-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-unit);
}

.availability-item {
    background-color: var(--background);
    padding: var(--spacing-unit);
}

.availability-item h3 {
    margin-bottom: var(--spacing-unit);
}

.availability-item p {
    margin-bottom: 0;
}

/* 表单样式 */
.form-group {
    margin-bottom: var(--spacing-unit);
}

label {
    display: block;
    margin-bottom: var(--spacing-unit);
    font-size: 0.9rem;
    color: var(--text-light);
}

input, textarea {
    width: 100%;
    padding: var(--spacing-unit);
    border: 1px solid var(--border);
    font-family: 'Noto Sans', 'Noto Sans SC', sans-serif;
    font-size: 1rem;
    transition: var(--transition-base);
}

input:focus, textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.btn-submit {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: var(--spacing-unit) var(--spacing-unit);
    font-family: 'Noto Sans', 'Noto Sans SC', sans-serif;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-base);
}

.btn-submit:hover {
    background-color: #333;
}

/* 页脚 */
footer {
    background-color: var(--secondary);
    padding: 80px 0 30px;
    margin-top: 80px;
}

.footer-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
}

.footer-logo {
    font-size: 2rem;
    font-weight: 500;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

.footer-role {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.6;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-links-column h4 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 10px;
}

.footer-links-column h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--primary);
}

.footer-links-list li {
    margin-bottom: 12px;
    transition: transform 0.2s ease;
}

.footer-links-list li:hover {
    transform: translateX(5px);
}

.footer-links-list a {
    color: var(--text);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links-list a:hover {
    color: var(--primary);
}

.footer-bottom {
    margin-top: 60px;
    padding-top: 30px;
    border-top: 1px solid var(--border);
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-light);
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.8s ease forwards;
}

.slide-up {
    animation: slideUp 0.8s ease forwards;
}

/* 响应式设计优化 */
@media (max-width: 992px) {
    .page-header h1 {
        font-size: 2.2rem;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding-top: calc(var(--spacing-unit) * 3 + 60px);
    }
    
    .page-header h1 {
        font-size: 2rem;
    }
    
    .nav-links {
        gap: 20px;
    }
    
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 576px) {
    .page-header h1 {
        font-size: 1.8rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

/* 教育经历详情页 */
.education-detail-section {
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
}

.education-detail {
    background-color: var(--background);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.education-detail:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.education-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-lg);
}

.education-logo {
    flex: 0 0 auto;
    width: 140px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--background);
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
    padding: 5px;
}

/* 通用校徽样式 */
.university-logo {
    width: 130px;
    height: 130px;
    object-fit: contain;
    transition: var(--transition);
    padding: 5px;
    background-color: white;
    box-shadow: var(--shadow-sm);
}

/* 校徽链接样式 */
.education-logo a {
    display: block;
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.education-logo a:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-md);
}

.education-logo a:hover .university-logo {
    transform: scale(1.15);
}

/* 圆形校徽样式（默认，适用于人民大学） */
.university-logo {
    border-radius: 50%;
}

/* 椭圆形校徽样式（适用于华中科技大学） */
.university-logo.hust-logo {
    border-radius: 40% / 50%;
    width: 140px;
    height: 110px;
}

.university-logo:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-md);
}

.education-title {
    flex: 1;
}

.education-title h3 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--primary-dark);
}

/* 人民大学标题颜色 */
.ruc-title {
    color: var(--ruc-red) !important;
}

/* 大学标签样式 */
.university-tags {
    display: flex;
    gap: 5px;
    margin-top: 5px;
}

.university-tag {
    font-size: 0.7rem;
    padding: 1px 5px;
    border-radius: 3px;
    font-weight: 500;
    display: inline-block;
}

.ruc-tag {
    color: var(--ruc-red);
    border: 1px solid var(--ruc-red);
    background-color: rgba(174, 11, 42, 0.05);
}

.hust-tag {
    color: var(--hust-blue);
    border: 1px solid var(--hust-blue);
    background-color: rgba(0, 74, 152, 0.05);
}

.education-title p {
    margin: 0;
    color: var(--text-light);
    font-size: 1.1rem;
}

.education-content {
    margin-top: var(--spacing-lg);
    padding-left: 140px;
}

/* 平均绩点样式 */
.gpa-value {
    font-size: 1.3rem;
    font-weight: 500;
    margin: 0.2rem 0 0.8rem;
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

/* 人大红色绩点 */
.ruc-gpa {
    color: var(--ruc-red);
    border-left: 3px solid var(--ruc-red);
    background-color: rgba(174, 11, 42, 0.02);
}

/* 华科蓝色绩点 */
.hust-gpa {
    color: var(--hust-blue);
    border-left: 3px solid var(--hust-blue);
    background-color: rgba(0, 74, 152, 0.02);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.course-item {
    background-color: var(--light);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    transition: var(--transition);
}

/* 人大课程悬停效果 */
.ruc-course:hover {
    background-color: var(--ruc-red);
    color: white;
    transform: translateY(-2px);
}

/* 华科课程悬停效果 */
.hust-course:hover {
    background-color: var(--hust-blue);
    color: white;
    transform: translateY(-2px);
}

.honors-list {
    margin-top: var(--spacing-md);
}

/* 人大荣誉样式 */
.ruc-honor {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--ruc-red);
}

/* 华科荣誉样式 */
.hust-honor {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--hust-blue);
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .university-logo {
        width: 110px;
        height: 110px;
    }
    
    .university-logo.hust-logo {
        width: 120px;
        height: 90px;
    }
    
    .education-content {
        padding-left: 0;
    }
}

@media (max-width: 768px) {
    .education-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .university-logo {
        width: 100px;
        height: 100px;
        margin-bottom: var(--spacing-md);
    }
    
    .university-logo.hust-logo {
        width: 110px;
        height: 85px;
    }
}

@media (max-width: 576px) {
    .university-logo {
        width: 90px;
        height: 90px;
    }
    
    .university-logo.hust-logo {
        width: 100px;
        height: 75px;
    }
}

/* 实习经历详情页 */
.internship-detail-section {
    padding: 60px 0;
}

.internship-detail {
    margin-bottom: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--border);
}

.internship-detail:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.internship-meta {
    display: flex;
    justify-content: space-between;
    margin: 20px 0 40px;
}

.internship-position {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text);
}

.internship-period {
    color: var(--text-light);
}

.internship-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.internship-description h3,
.internship-achievements h3,
.internship-skills h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.internship-description ul,
.internship-achievements ul,
.internship-skills ul {
    list-style: none;
    padding: 0;
}

.internship-description li,
.internship-achievements li,
.internship-skills li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    line-height: 1.6;
}

.internship-description li::before,
.internship-achievements li::before,
.internship-skills li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* 研究经历详情页 */
.research-detail-section {
    padding: 60px 0;
}

.research-detail {
    margin-bottom: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--border);
}

.research-detail:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.research-meta {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 20px 0 40px;
}

.research-subtitle {
    font-size: 1.125rem;
    font-weight: 400;
    color: var(--text);
}

.research-period {
    color: var(--text-light);
}

.research-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.research-abstract h3,
.research-implications h3,
.research-expectations h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.research-abstract p,
.research-implications p,
.research-expectations p {
    line-height: 1.8;
    margin-bottom: 16px;
}

.research-methodology ul,
.research-findings ul,
.research-progress ul {
    list-style: none;
    padding: 0;
}

.research-methodology li,
.research-findings li,
.research-progress li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    line-height: 1.6;
}

.research-methodology li::before,
.research-findings li::before,
.research-progress li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* 校园经历详情页 */
.campus-detail-section {
    padding: 60px 0;
}

.campus-detail {
    margin-bottom: 80px;
    padding-bottom: 60px;
    border-bottom: 1px solid var(--border);
}

.campus-detail:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.campus-meta {
    display: flex;
    justify-content: space-between;
    margin: 20px 0 40px;
}

.campus-position {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text);
}

.campus-period {
    color: var(--text-light);
}

.campus-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
}

.campus-description h3,
.campus-responsibilities h3,
.campus-achievements h3,
.campus-outcomes h3,
.campus-skills h3,
.campus-progress h3 {
    font-size: 1.125rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.campus-description p {
    line-height: 1.8;
    margin-bottom: 16px;
}

.campus-responsibilities ul,
.campus-achievements ul,
.campus-outcomes ul,
.campus-skills ul,
.campus-progress ul {
    list-style: none;
    padding: 0;
}

.campus-responsibilities li,
.campus-achievements li,
.campus-outcomes li,
.campus-skills li,
.campus-progress li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 12px;
    line-height: 1.6;
}

.campus-responsibilities li::before,
.campus-achievements li::before,
.campus-outcomes li::before,
.campus-skills li::before,
.campus-progress li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary);
}

/* 响应式设计补充 */
@media (max-width: 768px) {
    .education-meta,
    .internship-meta,
    .campus-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    .education-stats {
        flex-direction: column;
        gap: 16px;
    }
}

/* 添加动画关键帧 */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* 全局变量优化 */
:root {
    --primary: #0056b3;
    --primary-light: #007bff;
    --primary-dark: #004494;
    --secondary: #6c757d;
    --success: #28a745;
    --info: #17a2b8;
    --warning: #ffc107;
    --danger: #dc3545;
    --light: #f8f9fa;
    --dark: #343a40;
    --background: #ffffff;
    --text: #333333;
    --text-light: #6c757d;
    --border: #e9ecef;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow: 0 4px 6px rgba(0,0,0,0.05);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.05);
    --transition: all 0.3s ease;
    --radius: 8px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-xxl: 48px;
    --font-sans: 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;
    --font-serif: 'Noto Serif SC', Georgia, serif;
    --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
}

/* 基础样式优化 */
body {
    font-family: var(--font-sans);
    color: var(--text);
    line-height: 1.6;
    background-color: var(--background);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* 导航栏优化 */
header {
    position: sticky;
    top: 0;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 1000;
    transition: var(--transition);
    padding: 24px 0;
    box-shadow: var(--shadow-sm);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.nav-links {
    display: flex;
    gap: 40px;
}

.nav-links a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: var(--transition);
}

.nav-links a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--primary);
    transition: var(--transition);
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-links a:hover:after {
    width: 100%;
}

.lang-switch {
    display: flex;
    align-items: center;
}

.lang-switch a {
    color: var(--text-light);
    text-decoration: none;
    margin-left: var(--spacing-md);
    font-size: 0.9rem;
    transition: var(--transition);
}

.lang-switch a:hover {
    color: var(--primary);
}

/* 英雄区域优化 */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-image: url('../images/首页.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: white;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); /* 半透明黑色遮罩，增加文字可读性 */
    z-index: 1;
}

.hero h1, .hero p, .hero .role-carousel {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.hero h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: var(--spacing-unit);
    font-weight: 500;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-unit);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

/* 角色轮播优化 */
.role-carousel {
    position: relative;
    height: 1.5em;
    overflow: hidden;
    margin-top: 1rem;
    z-index: 2;
}

.role-item {
    position: absolute;
    width: 100%;
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    color: white;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.role-item.active {
    opacity: 1;
    transform: translateY(0);
    font-weight: bold;
}

/* 卡片样式优化 */
.card {
    background-color: var(--background);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

/* 按钮样式优化 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    background-color: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background-color: var(--primary);
    color: white;
}

/* 页面内容容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.section {
    padding: var(--spacing-xxl) 0;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-xl);
    position: relative;
    display: inline-block;
}

.section-title:after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary);
    bottom: -10px;
    left: 0;
}

/* 教育经历部分优化 */
.education-detail-section {
    padding: var(--spacing-xl) 0;
    margin-bottom: var(--spacing-xl);
}

.education-detail {
    background-color: var(--background);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    transition: var(--transition);
    border: 1px solid var(--border);
}

.education-detail:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.education-header {
    display: flex;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-lg);
}

.education-logo {
    flex: 0 0 auto;
    width: 140px;
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--background);
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
    padding: 5px;
}

/* 通用校徽样式 */
.university-logo {
    width: 130px;
    height: 130px;
    object-fit: contain;
    transition: var(--transition);
    padding: 5px;
    background-color: white;
    box-shadow: var(--shadow-sm);
}

/* 校徽链接样式 */
.education-logo a {
    display: block;
    border-radius: 50%;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.education-logo a:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-md);
}

.education-logo a:hover .university-logo {
    transform: scale(1.15);
}

/* 圆形校徽样式（默认，适用于人民大学） */
.university-logo {
    border-radius: 50%;
}

/* 椭圆形校徽样式（适用于华中科技大学） */
.university-logo.hust-logo {
    border-radius: 40% / 50%;
    width: 140px;
    height: 110px;
}

.university-logo:hover {
    transform: scale(1.15);
    box-shadow: var(--shadow-md);
}

.education-title {
    flex: 1;
}

.education-title h3 {
    margin: 0 0 var(--spacing-xs) 0;
    font-size: 1.8rem;
    font-weight: 500;
    color: var(--primary-dark);
}

/* 人民大学标题颜色 */
.ruc-title {
    color: var(--ruc-red) !important;
}

.education-title p {
    margin: 0;
    color: var(--text-light);
    font-size: 1.1rem;
}

.education-content {
    margin-top: var(--spacing-lg);
    padding-left: 140px;
}

/* 平均绩点样式 */
.gpa-value {
    font-size: 1.3rem;
    font-weight: 500;
    margin: 0.2rem 0 0.8rem;
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

/* 人大红色绩点 */
.ruc-gpa {
    color: var(--ruc-red);
    border-left: 3px solid var(--ruc-red);
    background-color: rgba(174, 11, 42, 0.02);
}

/* 华科蓝色绩点 */
.hust-gpa {
    color: var(--hust-blue);
    border-left: 3px solid var(--hust-blue);
    background-color: rgba(0, 74, 152, 0.02);
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.course-item {
    background-color: var(--light);
    padding: var(--spacing-md);
    border-radius: var(--radius);
    transition: var(--transition);
}

/* 人大课程悬停效果 */
.ruc-course:hover {
    background-color: var(--ruc-red);
    color: white;
    transform: translateY(-2px);
}

/* 华科课程悬停效果 */
.hust-course:hover {
    background-color: var(--hust-blue);
    color: white;
    transform: translateY(-2px);
}

.honors-list {
    margin-top: var(--spacing-md);
}

/* 人大荣誉样式 */
.ruc-honor {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--ruc-red);
}

/* 华科荣誉样式 */
.hust-honor {
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-md);
    border-left: 3px solid var(--hust-blue);
}

/* 页脚优化 */
footer {
    background-color: var(--dark);
    color: white;
    padding: var(--spacing-xxl) 0;
    margin-top: var(--spacing-xxl);
}

.footer-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

.footer-section h3 {
    margin-top: 0;
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.footer-section h3:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: var(--primary-light);
    bottom: -8px;
    left: 0;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--light);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
    padding-left: var(--spacing-xs);
}

.copyright {
    text-align: center;
    padding-top: var(--spacing-xl);
    margin-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: var(--text-light);
}

/* 动画类 */
.fade-in {
    animation: fadeIn 1s ease-out forwards;
}

.slide-up {
    animation: slideUp 0.8s ease-out forwards;
}

/* 响应式设计优化 */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero p {
        font-size: 1.3rem;
    }
    
    .section-title {
        font-size: 2.2rem;
    }
    
    .university-logo {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 80px;
        right: -100%;
        flex-direction: column;
        background-color: white;
        width: 80%;
        height: calc(100vh - 80px);
        padding: var(--spacing-xl);
        transition: var(--transition);
        box-shadow: var(--shadow);
        gap: var(--spacing-xl);
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .courses-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .education-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .university-logo {
        margin-bottom: var(--spacing-md);
        margin-right: 0;
    }
    
    .card, .education-detail {
        padding: var(--spacing-lg);
    }
}

/* 专业培养目标悬停效果 */
.program-info {
    position: relative;
    display: inline-block;
    cursor: pointer;
    border-bottom: 1px dashed var(--ruc-red);
    transition: color 0.3s ease;
    padding-bottom: 1px;
}

.program-info:hover {
    color: var(--ruc-red);
}

/* 添加一个小图标提示这是可交互的 */
.program-info::after {
    content: '?';
    display: inline-block;
    width: 14px;
    height: 14px;
    line-height: 14px;
    text-align: center;
    font-size: 10px;
    background-color: rgba(174, 11, 42, 0.1);
    color: var(--ruc-red);
    border-radius: 50%;
    margin-left: 4px;
    vertical-align: super;
}

.program-goal {
    position: absolute;
    top: 30px;
    left: 0;
    width: 400px;
    background-color: white;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text);
    text-align: left;
    pointer-events: none; /* 确保鼠标事件不会被捕获 */
}

.program-info:hover + .program-goal {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto; /* 当显示时允许鼠标事件 */
}

.program-goal:hover {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.program-goal::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 20px;
    width: 12px;
    height: 12px;
    background-color: white;
    border-left: 1px solid var(--border);
    border-top: 1px solid var(--border);
    transform: rotate(45deg);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .program-goal {
        width: 320px;
        left: -100px;
    }
    
    .program-goal::before {
        left: 120px;
    }
}

@media (max-width: 576px) {
    .program-goal {
        width: 280px;
        font-size: 0.8rem;
        left: -120px;
    }
    
    .program-goal::before {
        left: 140px;
    }
}

/* 首页滑动轮播 */
.hero-slider {
    position: relative;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 0;
}

.slide.active {
    opacity: 1;
    z-index: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-1 .slide-bg {
    background-image: url('../images/slide1.jpg');
}

.slide-2 .slide-bg {
    background-image: url('../images/slide2.jpg');
}

.slide-3 .slide-bg {
    background-image: url('../images/slide3.jpg');
}

.slide-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    background: rgba(0, 0, 0, 0.4);
    color: #fff;
    padding: 0 20px;
}

.slide-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: 'Noto Serif SC', serif;
}

.slide-description {
    font-size: 1.2rem;
    max-width: 800px;
    line-height: 1.6;
    font-family: 'Noto Sans SC', sans-serif;
}

/* 导航点样式 */
.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 15px;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.slider-dot.active {
    background-color: #fff;
}

/* 箭头样式 */
.slider-arrows {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 30px;
    transform: translateY(-50%);
    z-index: 10;
}

.slider-arrow {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.3);
    cursor: pointer;
    transition: background-color 0.3s ease;
    display: flex;
    justify-content: center;
    align-items: center;
}

.slider-arrow:hover {
    background-color: rgba(255, 255, 255, 0.5);
}

.slider-arrow-left::before,
.slider-arrow-right::before {
    content: '';
    display: block;
    width: 15px;
    height: 15px;
    border-top: 3px solid #fff;
    border-left: 3px solid #fff;
}

.slider-arrow-left::before {
    transform: rotate(-45deg);
    margin-left: 5px;
}

.slider-arrow-right::before {
    transform: rotate(135deg);
    margin-right: 5px;
}

@media (max-width: 768px) {
    .slide-title {
        font-size: 2.5rem;
    }
    
    .slide-description {
        font-size: 1rem;
    }
    
    .slider-arrow {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .slide-title {
        font-size: 2rem;
    }
    
    .slider-arrows {
        padding: 0 15px;
    }
    
    .slider-arrow {
        width: 35px;
        height: 35px;
    }
}