/* 全局变量 - 只保留夜间模式 */
:root {
    /* 颜色 - 夜间模式 */
    --color-primary: #f8f9fa;
    --color-secondary: #e9ecef;
    --color-accent: #6d8dff;
    --color-background: #121212;
    --color-background-alt: #1e1e1e;
    --color-border: #2d2d2d;
    --color-text: #f8f9fa;
    --color-text-light: #adb5bd;
    
    /* 字体 */
    --font-primary: 'Noto Sans SC', sans-serif;
    --font-secondary: 'Noto Serif SC', serif;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* 过渡 */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
    
    /* 阴影 */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    
    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
}

/* 磨砂玻璃导航栏 */
.glass-nav {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(30, 30, 30, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 50px;
    padding: 0; /* 重置内边距以使用固定尺寸 */
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.5s ease, transform 0.5s ease;
    width: 503px; /* 固定宽度 */
    height: 41px; /* 固定高度 */
    max-width: 90%; /* 在小屏幕上限制最大宽度 */
}

.nav-links {
    display: flex;
    list-style: none;
    justify-content: space-around;
    width: 100%;
    height: 100%;
    padding: 0;
    margin: 0;
    align-items: center;
}

/* 响应式调整 */
@media (max-width: 768px) {
    .glass-nav {
        max-width: 90%;
        height: 41px; /* 保持固定高度 */
        bottom: 20px !important;
        display: flex !important;
        opacity: 0; /* 默认不可见，通过JS控制显示 */
    }
    
    .nav-links {
        display: flex !important;
        justify-content: space-around;
        width: 100%;
        position: static !important; /* 重要：防止position: fixed导致内容不可见 */
        height: 100% !important; /* 自适应高度 */
        flex-direction: row !important; /* 保持水平方向 */
        background-color: transparent !important; /* 透明背景 */
        right: auto !important; /* 移除右侧定位 */
        box-shadow: none !important; /* 移除阴影 */
    }
    
    .nav-link {
        margin: 0 5px;
        font-size: 0.9rem;
        color: var(--color-primary) !important; /* 确保文字颜色 */
    }
}

/* 竖屏模式特别处理 */
@media (orientation: portrait) {
    .glass-nav {
        max-width: 90%;
        height: 41px;
        display: flex !important;
        opacity: 0; /* 默认不可见，通过JS控制显示 */
        bottom: 20px; /* 确保位置固定 */
    }
    
    .nav-links {
        display: flex !important;
        justify-content: space-around;
        width: 100%;
        position: static !important;
        height: 100% !important;
        flex-direction: row !important;
        background-color: transparent !important;
        right: auto !important;
    }
    
    .nav-link {
        margin: 0 5px;
        padding: 5px;
        font-size: 14px !important;
        white-space: nowrap; /* 防止文本换行 */
    }
}

/* 超小屏幕设备特别处理 */
@media (max-width: 375px) {
    .glass-nav {
        max-width: 95%;
        height: 35px; /* 稍微降低高度以适应小屏幕 */
    }
    
    .nav-links {
        padding: 0;
        margin: 0;
    }
    
    .nav-link {
        font-size: 12px !important;
        margin: 0 2px;
        padding: 3px;
    }
}

/* 针对iPhone SE等超小屏设备 */
@media (max-width: 320px) {
    .glass-nav {
        height: 32px; /* 更小的高度 */
    }
    
    .nav-link {
        font-size: 11px !important;
        margin: 0 1px;
        padding: 2px;
    }
}

.glass-nav.visible {
    opacity: 1;
}

/* Logo圆形装饰 */
.logo-circle {
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: var(--color-accent);
    border-radius: 50%;
    margin-left: 5px;
    position: relative;
    top: 4px; /* 调整圆形位置，使其与文字底部对齐 */
}

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

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

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

/* 加载页面样式 */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-background);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity var(--transition-medium), visibility var(--transition-medium), transform var(--transition-slow);
    transform-origin: top left;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    transform: scale(0.1) translate(-300%, -300%);
    transition: opacity 0.8s ease, visibility 0.8s ease, transform 1.2s ease;
}

.loading-logo {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    display: flex;
    align-items: center;
    font-family: var(--font-primary);
}

.loading-circle {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 2px solid var(--color-accent);
    border-top: 2px solid transparent;
    border-radius: 50%;
    margin-left: 8px;
    position: relative;
    top: 0;
    animation: spin 1.5s infinite ease;
    transition: all 0.5s ease;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

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

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

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

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

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
    text-align: left;
}

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

.section-title {
    font-family: var(--font-primary);
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    font-weight: 600;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--color-accent);
}

/* 导航栏样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: background-color var(--transition-fast), box-shadow var(--transition-fast);
    background-color: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

/* 导航栏样式更新 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
}

.location-weather {
    display: flex;
    flex-direction: column;
    align-items: flex-end; /* 控制水平对齐，flex-start 左对齐, center 居中, flex-end 右对齐 */
    gap: 1px; /* 减小间距 */
    font-family: 'Noto Sans SC', sans-serif;
    font-size: 8pt !important; /* 固定字体大小 */
    width: auto !important; /* 确保宽度自适应内容 */
    /* 可以通过添加 margin 或 padding 来调整整体位置 */
    /* 例如: margin-top: 10px; /* 增加顶部外边距 */
    /* 例如: padding-right: 10px; /* 增加右侧内边距 */
}

.city {
    font-size: 8pt !important;
    font-weight: 700;
    color: #ffffff;
}

.time-weather {
    text-align: right;
}

.current-time {
    font-size: 6pt !important;
    font-family: 'Noto Serif SC', serif;
    color: #999999;
}

.location i, .weather i, .time i {
    font-size: 1rem;
    color: var(--color-accent);
}

.header.scrolled {
    background-color: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
}

.header.scrolled .navbar {
    padding: var(--spacing-sm) var(--spacing-md);
}

.logo {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    padding-left: 10px;
    display: flex;
    align-items: center;
    position: relative;
    color: transparent;
}

.logo::before {
    content: 'Portfolio';
    position: absolute;
    transition: all var(--transition-medium);
    color: var(--color-primary);
    opacity: 1;
    transform: translateY(0);
}

.logo::after {
    content: '';
    position: absolute;
    opacity: 0;
    transform: translateY(20px);
    transition: all var(--transition-medium);
    color: var(--color-primary);
    display: none;
}

.header.scrolled .logo::before,
.glass-nav.visible ~ .header .logo::before {
    opacity: 1;
    transform: translateY(0);
}

.glass-nav.visible ~ .header .logo::before {
    opacity: 1;
    transform: translateY(0);
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-link {
    font-family: var(--font-primary);
    margin: 0 var(--spacing-sm);
    color: var(--color-primary);
    font-weight: 500;
    position: relative;
    transition: transform var(--transition-fast);
}

.nav-link:hover {
    transform: scale(1.05);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-accent);
    transition: width var(--transition-fast);
}

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

/* 自我介绍打字效果 */
.self-intro {
    margin-top: 20px;
    min-height: 200px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.self-intro.hidden {
    opacity: 0;
    transform: translateY(20px);
}

.self-intro {
    transition: opacity 0.8s ease, transform 0.8s ease;
    opacity: 1;
}

.typing-container {
    display: block;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    line-height: 1.5;
    color: var(--color-text);
    max-width: 800px;
    width: 100%;
    margin-left: 0;
    margin-right: auto;
    min-height: 160px; /* 预留空间，防止文字向上推动 */
    padding: 0;
    text-align: left !important; /* 强制左对齐 */
    position: relative;
}

.typing-text {
    overflow: hidden;
    margin: 0;
    font-family: var(--font-secondary);
    white-space: pre-wrap;
    line-height: 1.5;
    text-align: left !important; /* 强制左对齐 */
    position: relative;
    display: inline-block;
    width: 100%;
}

.line-break {
    height: 0.75em;
    display: block;
    text-align: left;
}

.cursor {
    display: inline-block;
    width: 3px;
    height: 1.2em;
    background-color: var(--color-accent);
    margin-left: 2px;
    vertical-align: middle;
    animation: blink-caret 0.75s step-end infinite;
}

/* 确保打字机文本占位符左对齐 */
.typing-placeholder {
    visibility: hidden;
    position: absolute;
    left: 0;
    top: 0;
    text-align: left !important;
}

.centered-hero {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
    max-width: 100% !important;
    margin: 0;
    padding: 0;
}

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    max-width: 90%;
    padding: 0;
}

.hero-title {
    font-family: var(--font-primary);
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s var(--transition-medium) forwards;
    text-align: left;
    align-self: flex-start;
    width: 100%;
}

.hero-subtitle {
    font-family: var(--font-primary);
    font-size: 2rem;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s var(--transition-medium) forwards 0.2s;
    align-self: flex-start;
    text-align: left;
}

.hero-description {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
    opacity: 0;
    transform: translateX(-30px);
    animation: fadeInLeft 1s var(--transition-medium) forwards 0.4s;
    font-family: var(--font-secondary);
    align-self: flex-start;
    text-align: left;
}

.highlight {
    color: var(--color-accent);
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 1s var(--transition-medium) forwards 0.6s;
    align-self: flex-start;
    margin-top: 20px;
}

.btn {
    font-family: var(--font-primary);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

/* 关于我区域样式 */
.about-section {
    background-color: var(--color-background-alt);
}

.about-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    max-width: 800px;
    margin: 0 auto;
}

.about-text p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
    font-family: var(--font-secondary);
}

.about-text.visible p {
    opacity: 1;
    transform: translateY(0);
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.skill-tag {
    background-color: var(--color-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    opacity: 0;
    transform: scale(0.9);
    transition: opacity var(--transition-medium), transform var(--transition-medium);
    font-family: var(--font-primary);
}

.skills.visible .skill-tag {
    opacity: 1;
    transform: scale(1);
}

/* 项目展示区域样式 */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-medium), box-shadow var(--transition-medium);
    background-color: var(--color-background);
    opacity: 0;
    transform: scale(0.95);
}

.project-card.visible {
    opacity: 1;
    transform: scale(1);
}

.project-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.project-img {
    overflow: hidden;
    height: 200px;
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-medium);
}

.project-card:hover .project-img img {
    transform: scale(1.05);
}

.project-content {
    padding: var(--spacing-md);
}

.project-title {
    font-family: var(--font-primary);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-xs);
}

.project-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-secondary);
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
}

.project-tag {
    background-color: var(--color-background-alt);
    color: var(--color-text-light);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: var(--font-primary);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    font-family: var(--font-primary);
}

.project-link i {
    transition: transform var(--transition-fast);
}

.project-link:hover i {
    transform: translateX(5px);
}

/* 增强的时间轴样式 */
.timeline-experience-section {
    position: relative;
    padding: 80px 0;
    background-color: var(--color-background-alt);
}

.timeline-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px 0;
    padding-left: 30px;
}

/* 时间线粗细和渐隐效果 */
.timeline-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 40px;
    width: 2px; /* 默认较细 */
    border-radius: 4px;
    overflow: visible;
    background: linear-gradient(
        180deg, 
        rgba(109, 141, 255, 0) 0%, 
        rgba(109, 141, 255, 0.2) 10%, 
        rgba(109, 141, 255, 0.5) 50%, 
        rgba(109, 141, 255, 0.2) 90%, 
        rgba(109, 141, 255, 0) 100%
    );
}

/* 时间线粗细变化 */
.timeline-line::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px; /* 中间较粗 */
    height: 70%;
    background: linear-gradient(
        180deg, 
        rgba(109, 141, 255, 0) 0%, 
        rgba(109, 141, 255, 0.4) 10%, 
        rgba(109, 141, 255, 0.8) 50%, 
        rgba(109, 141, 255, 0.4) 90%, 
        rgba(109, 141, 255, 0) 100%
    );
    border-radius: 4px;
    opacity: 0.6;
    z-index: -1;
    pointer-events: none;
}

/* 发光效果 */
.timeline-line::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        rgba(109, 141, 255, 0.4) 0%,
        rgba(109, 141, 255, 0.2) 30%,
        rgba(109, 141, 255, 0.1) 60%,
        rgba(109, 141, 255, 0) 100%
    );
    filter: blur(4px);
    opacity: 0.5;
    z-index: -1;
    pointer-events: none;
}

.timeline-progress {
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 0%;
    border-radius: 4px;
    background: linear-gradient(
        180deg, 
        rgba(109, 141, 255, 0) 0%, 
        rgba(109, 141, 255, 0.7) 10%, 
        rgba(109, 141, 255, 1) 50%, 
        rgba(109, 141, 255, 0.7) 90%, 
        rgba(109, 141, 255, 0) 100%
    );
    box-shadow: 0 0 15px rgba(109, 141, 255, 0.4);
    transition: height 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 时间线脉冲效果 */
@keyframes pulse-glow {
    0% { opacity: 0.2; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.2); }
    100% { opacity: 0.2; transform: scale(1); }
}

.timeline-pulse {
    animation: pulse-glow 2s infinite ease-in-out;
}

/* 改进的圆点样式 */
.experience-dot {
    position: absolute;
    left: 40px;
    top: 15px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(109, 141, 255, 0.1), 0 0 10px rgba(109, 141, 255, 0.4);
    z-index: 3;
    transform: translateX(-50%); /* 确保居中在时间线上 */
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease;
}

/* 圆点内部发光效果 */
.experience-dot::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.8);
    opacity: 0.5;
    filter: blur(1px);
}

.education-item .experience-dot {
    background-color: #78c878;
    box-shadow: 0 0 0 4px rgba(120, 200, 120, 0.1), 0 0 10px rgba(120, 200, 120, 0.4);
}

/* 圆点悬停效果 - 居中放大 */
.experience-item:hover .experience-dot {
    transform: translateX(-50%) scale(1.35);
    box-shadow: 0 0 0 5px rgba(109, 141, 255, 0.15), 0 0 15px rgba(109, 141, 255, 0.6);
}

.education-item:hover .experience-dot {
    box-shadow: 0 0 0 5px rgba(120, 200, 120, 0.15), 0 0 15px rgba(120, 200, 120, 0.6);
}

/* 最佳视图中的圆点样式 */
.experience-dot.optimal-view {
    transform: translateX(-50%) scale(1.2);
    box-shadow: 0 0 0 5px rgba(109, 141, 255, 0.2), 0 0 20px rgba(109, 141, 255, 0.5);
    transition: all 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.education-item .experience-dot.optimal-view {
    box-shadow: 0 0 0 5px rgba(120, 200, 120, 0.2), 0 0 20px rgba(120, 200, 120, 0.5);
}

/* 移动设备适配 */
@media (max-width: 768px) {
    .timeline-container {
        padding-left: 20px;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .experience-item {
        padding-left: 40px;
    }
    
    .experience-dot {
        left: 20px;
    }
}

/* 联系方式样式 */
.contact-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    background-color: var(--color-background-alt);
    transition: transform var(--transition-fast);
}

.contact-item:hover {
    transform: translateX(5px);
}

.contact-item i {
    color: var(--color-accent);
    font-size: 1.2rem;
}

.contact-item {
    font-family: var(--font-secondary);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-background-alt);
    color: var(--color-primary);
    transition: transform var(--transition-fast), background-color var(--transition-fast);
}

.social-link:hover {
    transform: translateY(-5px);
    background-color: var(--color-accent);
    color: white;
}

.resume-download {
    margin-top: var(--spacing-sm);
}

/* 页脚样式 */
.footer {
    background-color: var(--color-background-alt);
    padding: var(--spacing-md) 0;
    text-align: right;  /* 改为右对齐 */
    color: var(--color-text-light);
    font-family: var(--font-secondary);
    position: static;  /* 移除固定定位 */
    margin-top: var(--spacing-xl);  /* 添加顶部间距 */
}

.footer .container {
    padding-right: 20px;  /* 右侧内边距 */
}

.footer-en {
    font-size: 0.8em;
    color: var(--color-text-light);
    margin-top: 5px;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* 确保横竖屏切换时的一致性 */
@media (orientation: portrait) {
    .glass-nav {
        max-width: 90%;
        height: 41px;
        display: flex !important;
        opacity: 0; /* 默认不可见，通过JS控制显示 */
        bottom: 20px; /* 确保位置固定 */
    }
    
    .hero-text {
        padding: 0 10px;
    }
}

@media (orientation: landscape) and (max-height: 500px) {
    .hero-section {
        height: auto;
        min-height: 100vh;
        padding: 100px 0;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 10px;
    }
}

/* 居中显示与全宽标题样式 */
.fullwidth-title {
    width: 100%;
    font-size: 4.5rem !important;
    text-align: left;
    padding: 0;
    margin-left: 0;
    margin-right: 0;
    align-self: flex-start;
}

@keyframes blink-caret {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}

/* Hero区域样式 */
.hero-section {
    height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-left: 20px;
    padding-top: 70px; /* 增加顶部间距，避免与固定header重叠 */
}

.hero-content {
    width: 100%;
    display: flex;
    justify-content: flex-start;
    padding-left: 0;
}

/* 确保打字机文本占位符左对齐 */
.typing-placeholder {
    visibility: hidden;
    position: absolute;
    left: 0;
    top: 0;
    text-align: left !important;
}

.hero-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    max-width: 95%;
    padding: 0;
}

/* 居中显示与全宽标题样式 */
.centered-hero {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    text-align: left;
    max-width: 100% !important;
    margin: 0;
    padding: 0;
}

/* 集成时间轴样式 */
.timeline-experience-section {
    position: relative;
    padding: 60px 0;
}

.timeline-container {
    position: relative;
    padding: 30px 0;
}

.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: #e0e0e0;
    transform: translateX(-50%);
}

.timeline-progress {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 0;
    background-color: var(--accent-color);
    transition: height 0.3s ease;
}

.experience-item {
    position: relative;
    margin-bottom: 60px;
    padding-left: 60px;
    opacity: 0;
    transform: translateY(30px);
    filter: blur(5px);
    transition: opacity 0.8s ease, transform 0.8s ease, filter 0.8s ease;
}

.experience-item.visible {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
}

/* 错开显示的延迟效果 */
.experience-item:nth-child(1) { transition-delay: 0.1s; }
.experience-item:nth-child(2) { transition-delay: 0.2s; }
.experience-item:nth-child(3) { transition-delay: 0.3s; }
.experience-item:nth-child(4) { transition-delay: 0.4s; }
.experience-item:nth-child(5) { transition-delay: 0.5s; }

/* 日期显示 */
.experience-date {
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-accent);
    letter-spacing: 0.5px;
}

.education-item .experience-date {
    color: #78c878;
}

/* 磨砂透明悬浮窗的卡片样式 */
.experience-card {
    position: relative;
    background: rgba(30, 30, 30, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1),
                0 4px 8px rgba(0, 0, 0, 0.05),
                inset 0 0 0 1px rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94), 
                box-shadow 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    overflow: hidden;
}

/* 视差悬停效果 - 替代3D效果 */
.experience-item:hover .experience-card {
    transform: translateY(-8px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15),
                0 8px 16px rgba(0, 0, 0, 0.1),
                inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

/* 卡片内容样式 */
.experience-tag {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 30px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.work-item .experience-tag {
    background: rgba(109, 141, 255, 0.15);
    color: var(--color-accent);
}

.education-item .experience-tag {
    background: rgba(120, 200, 120, 0.15);
    color: #78c878;
}

.experience-title {
    font-size: 1.3rem;
    margin: 10px 0;
    font-family: var(--font-primary);
    color: var(--color-text);
}

.experience-company {
    font-size: 1rem;
    color: var(--color-text-light);
    margin-bottom: 15px;
    font-weight: 500;
}

.experience-list {
    list-style: none;
    padding-left: 20px;
    margin: 0;
}

.experience-list li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

.experience-list li::before {
    content: '•';
    position: absolute;
    left: 0;
    top: 0;
    color: var(--color-accent);
    font-size: 1.2rem;
}

.education-item .experience-list li::before {
    color: #78c878;
}

.experience-description {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* 移动设备额外适配 */
@media (max-width: 768px) {
    .experience-card {
        padding: 20px;
    }
    
    .experience-title {
        font-size: 1.1rem;
    }
    
    .experience-date {
        font-size: 0.9rem;
    }
}

/* 3D卡片效果 */
.card-3d {
    transform: rotateX(0) rotateY(0);
    transition: transform 0.1s ease;
}