/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #2c3e50;
    --text-color: #333;
    --light-gray: #f5f5f5;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f9f9f9;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 页眉样式 */
header {
    background-color: var(--primary-color);
    color: white;
    padding: 2rem 0;
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* 导航栏样式 */
nav {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav ul {
    display: flex;
    justify-content: center;
    list-style: none;
    padding: 0;
    margin: 0;
}

nav ul li a {
    display: block;
    padding: 1rem 1.5rem;
    color: var(--dark-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border-bottom: 3px solid transparent;
}

nav ul li a:hover,
nav ul li a.active {
    color: var(--secondary-color);
    border-bottom: 3px solid var(--secondary-color);
}

/* 主要内容区 */
main {
    padding: 2rem 0;
    min-height: calc(100vh - 400px);
}

/* 页脚样式 */
footer {
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

footer p {
    margin: 0.5rem 0;
}

/* 首页特定样式 */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.profile-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    overflow: hidden;
    margin-bottom: 1.5rem;
    border: 5px solid var(--light-color);
}

.profile-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top;
}

.profile-info h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.profile-info p {
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}

.social-links {
    margin-top: 1.5rem;
}

.btn {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn:hover {
    background-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.link-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    cursor: pointer;
}

.link-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.link-card i {
    font-size: 2.5rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.link-card h3 {
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

/* 关于我页面 */
.about-section {
    background: white;
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--box-shadow);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.about-image {
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.about-image img {
    width: 100%;
    height: auto;
    display: block;
}

.about-text h2 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 2rem;
}

.subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.info-box {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1.5rem;
}

.info-box h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.info-box h3 i {
    color: var(--secondary-color);
}

.info-box ul {
    list-style: none;
    padding-left: 1.5rem;
}

.info-box ul li {
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 1.5rem;
}

.info-box ul li i {
    position: absolute;
    left: 0;
    top: 0.3rem;
    color: var(--secondary-color);
}

.interests {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1rem;
}

.interest-tag {
    background: var(--secondary-color);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
    display: inline-block;
}

/* 兴趣爱好页面 */
.hobbies-section {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.hobby-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.hobby-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.hobby-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    display: flex;
}

.hobby-image img {
    width: 50%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.hobby-image img:hover {
    transform: scale(1.05);
}

.hobby-content {
    padding: 1.5rem;
}

.hobby-content h2 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.hobby-content h2 i {
    color: var(--secondary-color);
}

/* 学习经历页面 */
.experience-section h2 {
    color: var(--primary-color);
    margin: 2rem 0 1.5rem;
    font-size: 1.8rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.experience-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 2rem;
    overflow: hidden;
}

.experience-header {
    background: var(--primary-color);
    color: white;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.experience-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.date {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.9rem;
}

.experience-content {
    padding: 1.5rem;
}

.experience-image {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.experience-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

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

.experience-details p {
    margin-bottom: 1rem;
}

.experience-details ul {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
}

.experience-details ul li {
    margin-bottom: 0.5rem;
}

/* 技能展示页面 */
.skills-section {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-category {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.5rem;
    box-shadow: var(--box-shadow);
}

.skill-category h2 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.skill-category h2 i {
    color: var(--secondary-color);
}

.skill-box {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.skill {
    margin-bottom: 1.5rem;
}

.skill h3 {
    margin-bottom: 0.5rem;
    color: var(--dark-color);
    font-size: 1.1rem;
}

.skill-level {
    height: 10px;
    background: #eee;
    border-radius: 5px;
    margin-bottom: 0.5rem;
    overflow: hidden;
}

.skill-level-bar {
    height: 100%;
    background: var(--secondary-color);
    border-radius: 5px;
    transition: width 1s ease-in-out;
}

.tools-box {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tool {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--light-gray);
    padding: 1rem;
    border-radius: var(--border-radius);
    min-width: 100px;
    transition: var(--transition);
}

.tool:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.tool i {
    font-size: 2rem;
    color: var(--secondary-color);
    margin-bottom: 0.5rem;
}

.learning-goals {
    list-style: none;
    padding-left: 0;
}

.learning-goals li {
    padding: 0.8rem 0;
    border-bottom: 1px solid #eee;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.learning-goals li:before {
    content: '→';
    color: var(--secondary-color);
}

/* 成就活动页面 */
.achievements-section,
.activities-section,
.awards-section {
    margin-bottom: 3rem;
}

.achievement-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
}

.achievement-icon {
    background: var(--light-gray);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.achievement-icon i {
    font-size: 1.5rem;
    color: var(--secondary-color);
}

.achievement-content {
    flex: 1;
}

.achievement-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.achievement-details {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    align-items: center;
}

.achievement-image {
    max-width: 200px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
}

.achievement-image img {
    width: 100%;
    height: auto;
    display: block;
}

.video-container {
    width: 100%;
    max-width: 600px;
    margin-top: 1rem;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.activity-card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    margin-bottom: 2rem;
}

.activity-image {
    display: flex;
    flex-wrap: wrap;
    width: 100%;
}

.activity-image-container {
    flex: 1 1 50%;
    min-width: 300px;
    height: 300px;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.activity-image img {
    width: auto;
    height: 100%;
    max-width: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
    display: block;
}

.activity-image img:hover {
    transform: scale(1.05);
}

.activity-content {
    padding: 1.5rem;
}

.activity-content h3 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 1.3rem;
}

.awards-list {
    list-style: none;
    padding: 0;
}

.awards-list li {
    background: white;
    padding: 1rem 1.5rem;
    margin-bottom: 0.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.awards-list li:before {
    content: '🏆';
    font-size: 1.2rem;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .quick-links {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
    
    .hobbies-section {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    }
    
    .hobby-image {
        height: 180px;
    }
    
    .achievement-details {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .achievement-image {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    nav ul {
        flex-wrap: wrap;
    }
    
    nav ul li {
        flex: 1 0 50%;
        text-align: center;
    }
    
    .hero {
        padding: 1.5rem;
    }
    
    .profile-image {
        width: 180px;
        height: 180px;
    }
    
    .experience-card {
        margin-bottom: 2rem;
    }
    
    .experience-image {
        flex-direction: column;
    }
    
    .experience-image img {
        width: 100%;
    }
    
    .activity-image img {
        width: 100%;
        height: 100%;
    }
    
    .activity-image-container {
        flex: 1 1 100%;
        height: 300px;
    }
}

@media (max-width: 576px) {
    header h1 {
        font-size: 2rem;
    }
    
    .profile-info h2 {
        font-size: 1.5rem;
    }
    
    .profile-image {
        width: 150px;
        height: 150px;
    }
    
    .quick-links {
        grid-template-columns: 1fr;
    }
    
    .hobbies-section {
        grid-template-columns: 1fr;
    }
    
    .hobby-image {
        height: 160px;
    }
    
    .achievement-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .achievement-details {
        align-items: center;
        text-align: center;
    }
    
    .achievement-image {
        margin: 0 auto;
    }
}