/* 全局样式 */
:root {
    --primary-color: #6c5ce7;
    --secondary-color: #a8a6ff;
    --text-color: #2d3436;
    --background-color: #ffffff;
    --section-padding: 80px 0;
}

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

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
    overflow-x: hidden;
}

/* 隐藏header的样式 */
.hidden-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: transparent; /* 完全透明背景 */
    box-shadow: none; /* 移除阴影 */
    transition: background-color 0.3s ease;
}

/* 滚动时可以选择是否略微增加透明度 */
.hidden-header.scrolled {
    background-color: rgba(255, 255, 255, 0.1); /* 几乎不可见的背景 */
    box-shadow: none; /* 保持无阴影 */
}

/* 主要内容容器 */
main {
    position: relative;
    background-color: var(--background-color);
}

/* 非首屏内容的容器 */
.content-wrapper {
    position: relative;
    background-color: var(--background-color);
    margin-top: -50px;  /* 创建与hero section的重叠 */
    border-radius: 30px 30px 0 0;  /* 圆角效果 */
    padding: 50px 20px;
    box-shadow: 0 -10px 20px rgba(0, 0, 0, 0.1);  /* 添加阴影效果 */
    z-index: 4;
}

/* 导航栏样式 */
.navbar {
    padding: 20px 50px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand h1 {
    font-size: 24px;
    color: var(--primary-color);
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3); /* 添加文字阴影使其在透明背景上更明显 */
}

.nav-menu a {
    color: white; /* 改为白色使其在透明背景上更明显 */
    text-decoration: none;
    margin-left: 30px;
    font-weight: 500;
    transition: color 0.3s ease;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5); /* 添加文字阴影提高可见度 */
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--secondary-color); /* 改为次要颜色，提高对比度 */
}

/* 主页英雄区域 */
.hero {
    position: relative;
    height: 100vh;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-image: url('../assets/images/linghua.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
}
.hero-background_en {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-image: url('../assets/images/ganyu.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    z-index: 1;
    
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: white;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    max-width: 90%;
}

.hero-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    transition: opacity 0.5s ease; /* 添加过渡效果 */
}

.hero-content p {
    font-size: 24px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

/* 下拉提示 */
.scroll-down {
    position: absolute;
    bottom: 30px; /* 保持在底部30px的位置 */
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    z-index: 5; /* 确保显示在其他元素之上 */
}

.scroll-down a {
    color: white;
    font-size: 30px;
    display: block;
    padding: 10px; /* 增加点击区域 */
    background-color: rgba(0, 0, 0, 0.2); /* 添加半透明背景 */
    border-radius: 50%; /* 圆形背景 */
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3); /* 添加阴影增强视觉效果 */
}

.scroll-down a:hover {
    background-color: rgba(108, 92, 231, 0.7); /* 悬停时变色 */
    transform: scale(1.1); /* 悬停时放大 */
    transition: all 0.3s ease;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) translateX(-50%);
    }
    40% {
        transform: translateY(-20px) translateX(-50%);
    }
    60% {
        transform: translateY(-10px) translateX(-50%);
    }
}

/* 社交链接 */
.social-links {
    margin-top: 30px;
}

.social-links a {
    color: white;
    font-size: 24px;
    margin: 0 15px;
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: translateY(-5px);
}

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

section h2 {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: var(--primary-color);
}

/* 关于我部分 */
.about {
    background-color: var(--background-color);
    position: relative;
    z-index: 2;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 40px 20px;
}

/* 技能部分 */
.skills-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.skills-category {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
}

.skills-category h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    border-bottom: 1px solid #ddd;
    padding-bottom: 10px;
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.skill-item {
    background-color: white;
    padding: 15px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.skill-name-wrapper {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
}

.skill-name {
    font-weight: 500;
    color: var(--text-color);
}

.skill-percentage {
    color: var(--primary-color);
    font-weight: 500;
}

.skill-bar {
    height: 8px;
    background-color: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
}

.skill-progress {
    height: 100%;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width 1s ease-in-out;
}

.skill-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skill-badge {
    background-color: white;
    color: var(--text-color);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 14px;
    display: inline-block;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.skill-badge:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

/* 项目展示 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 外部链接样式 */
.projects-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.external-links {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.external-link {
    display: flex;
    align-items: center;
    background-color: white;
    border-radius: 12px;
    padding: 25px;
    text-decoration: none;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    color: var(--text-color);
}

.external-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.link-icon {
    font-size: 30px;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 25px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

/* 为不同的外部链接设置不同的图标背景色 */
.external-link:nth-child(1) .link-icon {
    background-color: #00a1d6; /* B站蓝色 */
}

.external-link:nth-child(2) .link-icon {
    background-color: #c32c2c; /* CSDN红色 */
}

.external-link:nth-child(3) .link-icon {
    background-color: #1e88e5; /* 学术蓝色 */
}

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

.link-content {
    flex: 1;
}

.link-content h3 {
    font-size: 22px;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.link-content p {
    color: #666;
    font-size: 16px;
}

.link-arrow {
    font-size: 20px;
    color: var(--primary-color);
    margin-left: 20px;
    transition: transform 0.3s ease;
}

.external-link:hover .link-arrow {
    transform: translateX(5px);
}

@media (max-width: 768px) {
    .external-link {
        padding: 15px;
    }
    
    .link-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
        margin-right: 15px;
    }
    
    .link-content h3 {
        font-size: 18px;
    }
    
    .link-content p {
        font-size: 14px;
    }
}

/* 联系表单 */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

#contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

#contact-form input,
#contact-form textarea {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

#contact-form textarea {
    height: 150px;
    resize: vertical;
}

#contact-form button {
    padding: 15px 30px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s ease;
}

#contact-form button:hover {
    background-color: var(--secondary-color);
}

/* 页脚 */
footer {
    text-align: center;
    padding: 20px;
    background-color: #f5f5f5;
}

/* 添加滚动效果 */
@media (min-width: 768px) {
    .content-wrapper {
        margin-top: -100px;
        padding-top: 100px;
    }
}

/* 响应式设计调整 */
@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }

    .nav-menu {
        /* display: none; */
        display: flex; /* 添加这一行保证显示 */
        flex-wrap: wrap; /* 允许元素换行 */
        justify-content: center; /* 居中显示 */
    }

    .hero-content h1 {
        font-size: 32px; /* 小屏幕减小字体大小 */
    }

    .hero-content p {
        font-size: 18px;
    }

    section {
        padding: 60px 0;
    }

    section h2 {
        font-size: 28px;
    }
}

/* 响应式设计 */
@media (max-width: 992px) {
    .resume-container {
        flex-direction: column;
    }
    
    .resume-sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    }
    
    .avatar {
        width: 120px;
        height: 120px;
    }
    
    .info-grid,
    .skills-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 15px 20px;
    }

    .nav-menu {
        display: none;
    }

    .hero-content h1 {
        font-size: 32px; /* 小屏幕减小字体大小 */
    }

    .hero-content p {
        font-size: 18px;
    }

    .content-wrapper {
        padding: 20px;
    }

    .resume-content {
        padding: 20px;
    }
}

/* 内容区域 */
.content-wrapper {
    position: relative;
    background-color: var(--background-color);
    border-radius: 30px 30px 0 0;
    padding: 40px;
    box-shadow: 0 -10px 20px rgba(0, 0, 0, 0.1);
    z-index: 4;
}

/* 章节头部 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 36px;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.section-header p {
    color: #666;
    font-size: 18px;
}

/* 选项卡样式 */
.tabs-container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.tabs {
    display: flex;
    background-color: #f8f9fa;
    border-bottom: 1px solid #ddd;
}

.tab-btn {
    padding: 15px 25px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-color);
    flex: 1;
    text-align: center;
}

.tab-btn:hover {
    background-color: rgba(108, 92, 231, 0.1);
    color: var(--primary-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom: 3px solid var(--primary-color);
    background-color: white;
}

.tab-content-wrapper {
    padding: 30px;
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

/* 个人资料 */
.profile-container {
    display: flex;
    gap: 30px;
}

.profile-image {
    flex: 0 0 180px;
}

.profile-image img {
    width: 100%;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border: 4px solid var(--primary-color);
    transition: transform 0.3s ease;
}

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

.profile-education {
    margin-top: 15px;
    text-align: center;
    /* color: var(--primary-color); */
}

.profile-education p {
    margin: 5px 0;
    font-size: 14px;
    line-height: 1.4;
}
/* 
.profile-education p:first-child {
    font-weight: 600;
} */

.profile-details {
    flex: 1;
}

.profile-details h3 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 24px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 10px;
    display: inline-block;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    background-color: #f8f9fa;
    padding: 15px;
    border-radius: 10px;
    transition: transform 0.3s ease;
}

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

.info-icon {
    margin-right: 15px;
    color: var(--primary-color);
    font-size: 20px;
    display: flex;
    align-items: center;
}

.info-text {
    display: flex;
    flex-direction: column;
}

.info-label {
    font-weight: bold;
    color: #666;
    margin-bottom: 5px;
    font-size: 14px;
}

.info-value {
    color: var(--text-color);
    font-weight: 500;
}

.profile-bio {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.profile-bio p {
    line-height: 1.8;
    color: #666;
}

/* 时间线 */
.timeline {
    position: relative;
    padding-left: 20px;
    margin-top: 30px;
}

.timeline-item {
    position: relative;
    margin-bottom: 40px;
    padding-left: 30px;
}

.timeline-badge {
    position: absolute;
    top: 0;
    left: -20px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.timeline-panel {
    background-color: #f8f9fa;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    position: relative;
}

.timeline-panel:before {
    content: '';
    position: absolute;
    top: 15px;
    left: -10px;
    width: 20px;
    height: 20px;
    background-color: #f8f9fa;
    transform: rotate(45deg);
    box-shadow: -3px 3px 5px rgba(0, 0, 0, 0.05);
}

.timeline-heading h4 {
    color: var(--primary-color);
    margin-bottom: 5px;
    font-size: 20px;
}

.timeline-heading h5 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-weight: 500;
    font-size: 16px;
}

.timeline-date {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.timeline-date i {
    margin-right: 5px;
}

.timeline-body p {
    line-height: 1.6;
    margin-bottom: 15px;
}

.timeline-list {
    list-style-type: disc;
    padding-left: 20px;
}

.timeline-list li {
    margin-bottom: 5px;
    color: #666;
}

/* 响应式设计补充 */
@media (max-width: 992px) {
    .profile-container {
        flex-direction: column;
    }
    
    .profile-image {
        flex: 0 0 auto;
        max-width: 200px;
        margin: 0 auto 20px;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
    }
    
    .tab-btn {
        padding: 15px 20px;
        white-space: nowrap;
    }
    
    .tab-content-wrapper {
        padding: 20px 15px;
    }
}

/* 名言警句样式 */
#quote {
    min-height: 100px; /* 增加高度适应多行 */
    display: inline-block; /* 更改为inline-block，使文本可以自然折行 */
    text-align: center;
    position: relative;
    border-right: 2px solid white; /* 添加闪烁的光标效果 */
    white-space: nowrap; /* 初始不换行，后续根据内容长度调整 */
    overflow: hidden; /* 隐藏溢出内容 */
    animation: cursor-blink 0.7s infinite;
    margin: 0 auto; /* 居中显示 */
    padding-right: 5px; /* 为光标留出一点空间 */
    max-width: 100%; /* 确保不溢出父容器 */
}

/* 打字机光标闪烁动画 */
@keyframes cursor-blink {
    0%, 100% {
        border-right-color: transparent;
    }
    50% {
        border-right-color: white;
    }
}

/* 音乐控制按钮样式 */
.music-control {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

#musicBtn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: rgba(108, 92, 231, 0.7);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    position: relative;
}

#musicBtn:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

#musicBtn.muted {
    background-color: rgba(0, 0, 0, 0.3);
}

/* 按钮动画 */
@keyframes pulse {
    0% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(108, 92, 231, 0.5);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 0 0 10px rgba(108, 92, 231, 0);
    }
    100% {
        transform: scale(1);
        box-shadow: 0 0 0 0 rgba(108, 92, 231, 0);
    }
}

#musicBtn.playing {
    animation: pulse 2s infinite;
}

/* 音乐信息提示 */
.music-info {
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 5px 10px;
    border-radius: 5px;
    margin-bottom: 10px;
    font-size: 12px;
    max-width: 200px;
    opacity: 0;
    transform: translateY(10px);
    transition: all 0.3s ease;
    text-align: right;
}

.music-control:hover .music-info {
    opacity: 1;
    transform: translateY(0);
}

/* 语言切换按钮 */
.lang-toggle {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: white;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 14px;
    cursor: pointer;
    margin-left: 20px;
    transition: all 0.3s ease;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
}

.lang-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.lang-toggle.en {
    background-color: rgba(108, 92, 231, 0.3);
}

/* 导航栏语言切换文本 */
.lang-switch {
    cursor: pointer;
    position: relative;
    transition: all 0.3s ease;
    font-size: 18px;
    color: white;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.5);
    display: inline-block;
    padding: 5px 10px;
    border-radius: 4px;
}

.lang-switch:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.lang-text {
    white-space: nowrap;
}