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

:root {
    /* 苹果风格颜色系统 */
    --primary-black: #1d1d1f;
    --secondary-black: #2d2d2f;
    --primary-white: #f5f5f7;
    --pure-white: #ffffff;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --accent-blue: #d62828;
    --accent-blue-hover: #b71c1c;
    --accent-primary: #d62828;
    --accent-light: rgba(214, 40, 40, 0.12);
    --border-light: rgba(0, 0, 0, 0.1);
    --shadow-light: rgba(0, 0, 0, 0.1);
    --gradient-overlay: linear-gradient(180deg, rgba(0, 0, 0, 0.3) 0%, rgba(0, 0, 0, 0.7) 100%);
    
    /* 字体系统 - 优化跨平台兼容性 */
    --font-display: 'SF Pro Display', 'Noto Sans SC', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-text: 'SF Pro Text', 'Noto Sans SC', 'Helvetica Neue', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', '微软雅黑', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    
    /* 间距系统 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    --spacing-2xl: 8rem;
    
    /* 边框半径 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    
    /* 动画时长 */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
}

html {
    scroll-behavior: smooth;
    font-size: 17px; /* 苹果标准字体大小 */
}

body {
    font-family: var(--font-text);
    line-height: 1.47059; /* 苹果标准行高 */
    color: var(--text-primary);
    background-color: var(--pure-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
    overflow-x: hidden;
}

/* 容器 */
.container {
    max-width: 1600px; /* 增加最大宽度，适应现代宽屏显示器 */
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* 超宽屏幕优化 */
@media (min-width: 1920px) {
    .container {
        max-width: 1800px;
        padding: 0 var(--spacing-lg);
    }
    
    .nav-container {
        max-width: 1800px;
        padding: 0 var(--spacing-lg);
    }
}

/* 4K屏幕优化 */
@media (min-width: 2560px) {
    .container {
        max-width: 2200px;
        padding: 0 calc(var(--spacing-lg) * 1.5);
    }
    
    .nav-container {
        max-width: 2200px;
        padding: 0 calc(var(--spacing-lg) * 1.5);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: transparent;
    border-bottom: 1px solid transparent;
    z-index: 1000;
    transition: all var(--transition-normal) ease;
}

.navbar.scrolled {
    background: rgba(251, 251, 253, 0.94);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-light);
}

.navbar.scrolled .nav-link {
    color: var(--text-primary);
    text-shadow: none;
}

.navbar.scrolled .nav-logo a {
    color: var(--text-primary);
    text-shadow: none;
}

.navbar.scrolled .logo-icon {
    background: var(--accent-blue);
    color: var(--pure-white);
}

.navbar.scrolled .hamburger span {
    background: var(--text-primary);
    box-shadow: none;
}

.nav-container {
    max-width: 1600px; /* 与主容器保持一致 */
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    height: 60px;
}

.nav-logo {
    justify-self: start;
}

.nav-logo a {
    font-family: var(--font-display);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--pure-white);
    text-decoration: none;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    height: 50px;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
    transition: all var(--transition-fast) ease;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--pure-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-black);
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transition: all var(--transition-fast) ease;
}

.nav-logo a:hover .logo-icon {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.logo-text {
    font-weight: 600;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
    justify-self: center;
}

.nav-link {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--pure-white);
    text-decoration: none;
    transition: all var(--transition-fast) ease;
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.nav-link:hover {
    opacity: 0.8;
    transform: translateY(-1px);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    justify-self: end;
}

.hamburger span {
    width: 20px;
    height: 2px;
    background: var(--pure-white);
    transition: all var(--transition-normal) ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: var(--pure-white);
        flex-direction: column;
        justify-content: flex-start;
        padding: var(--spacing-lg);
        gap: var(--spacing-md);
        transition: right var(--transition-normal) ease;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .hamburger {
        display: flex;
    }
}

/* Hero Section */
.hero {
    position: relative;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -2;
    overflow: hidden;
}

.hero-background video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
    /* 视频优化 */
    filter: brightness(0.8) contrast(1.1) saturate(1.2);
    transition: all var(--transition-slow) ease;
}

/* 视频背景动画效果 */
.hero-background video:hover {
    transform: scale(1.02);
    filter: brightness(0.9) contrast(1.2) saturate(1.3);
}

/* 图片背景样式 */
.hero-background.image-background {
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.8) contrast(1.1) saturate(1.2);
    transition: all var(--transition-slow) ease;
}

/* 响应式视频背景 */
@media (max-width: 768px) {
    .hero-background video {
        /* 移动端优化 */
        width: 100%;
        height: 100%;
        object-position: center center;
    }
    
    .hero-background.image-background {
        /* 移动端背景样式 */
        background-size: cover;
        background-position: center;
    }
    
    /* 移动端滚动指示器优化 */
    .scroll-indicator {
        margin-top: 2rem;
        text-align: center;
    }
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    z-index: -1;
}

.hero-content {
    text-align: center;
    color: var(--pure-white);
    max-width: 800px;
    padding: 0 var(--spacing-md);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 80px);
    margin-top: 120px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.04em;
    margin-bottom: var(--spacing-md);
}

.title-line {
    display: block;
    animation: fadeInUp 1s ease-out forwards;
    opacity: 0;
    transform: translateY(30px);
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 300;
    margin-bottom: var(--spacing-lg);
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.4s forwards;
}



.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    color: var(--pure-white);
    font-size: 0.875rem;
    opacity: 0;
    animation: fadeInUp 1s ease-out 0.8s forwards;
    text-align: center;
    margin-top: var(--spacing-3xl);
}

.scroll-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--pure-white);
    animation: bounce 2s infinite;
}

/* 按钮系统 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 12px 24px;
    border-radius: var(--radius-xl);
    text-decoration: none;
    font-weight: 500;
    font-size: 1rem;
    transition: all var(--transition-normal) ease;
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

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

.btn-primary:hover {
    background: var(--accent-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 113, 227, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--pure-white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* 统一按钮红色主题 */
.btn,
.filter-btn,
.filter-toggle-btn,
.portfolio-view {
    background: var(--accent-primary);
    color: #fff;
    border: 1px solid var(--accent-primary);
}

.btn:hover,
.filter-btn:hover,
.filter-toggle-btn:hover,
.portfolio-view:hover {
    background: var(--accent-blue-hover);
    border-color: var(--accent-blue-hover);
    color: #fff;
}

.filter-btn.active {
    background: var(--accent-blue-hover);
    border-color: var(--accent-blue-hover);
}

.btn-outline {
    background: rgba(214, 40, 40, 0.06);
    color: var(--accent-primary);
    border: 1px solid var(--accent-primary);
}

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

/* 章节头部 */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    width: 100%;
    box-sizing: border-box;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.25rem;
    font-weight: 300;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 作品集部分 */
.portfolio {
    padding: var(--spacing-2xl) 0;
    background: var(--primary-white);
}



.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.filter-btn {
    padding: 8px 20px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    background: var(--pure-white);
    color: var(--text-primary);
    font-size: 0.875rem;
    font-weight: 400;
    cursor: pointer;
    transition: all var(--transition-normal) ease;
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--primary-black);
    color: var(--pure-white);
    border-color: var(--primary-black);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-md);
}

@media (max-width: 768px) {
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    aspect-ratio: 4/3;
    cursor: pointer;
    transition: transform var(--transition-normal) ease;
}

.portfolio-item:hover {
    transform: scale(1.02);
}

.portfolio-image {
    position: relative;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.portfolio-image img,
.portfolio-image video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow) ease;
}

.portfolio-item:hover .portfolio-image img,
.portfolio-item:hover .portfolio-image video {
    transform: scale(1.1);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-overlay);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity var(--transition-normal) ease;
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info {
    color: var(--pure-white);
}

.portfolio-info h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.portfolio-info p {
    font-size: 1rem;
    margin-bottom: var(--spacing-xs);
    opacity: 0.9;
}

.portfolio-type {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.portfolio-view {
    align-self: flex-end;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.3);
    color: var(--pure-white);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal) ease;
    backdrop-filter: blur(10px);
}

.portfolio-view:hover {
    background: var(--pure-white);
    color: var(--primary-black);
    transform: scale(1.1);
}

/* 关于部分 */
.about {
    padding: var(--spacing-2xl) 0;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .about-right {
        order: -1;
    }
    
    .skills-grid {
        grid-template-columns: repeat(3, 1fr);
        max-width: 600px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .skills-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-actions {
        justify-content: center;
        align-items: center;
        width: 100%;
    }
    
    .about-actions .btn {
        flex: 1;
        min-width: 140px;
        max-width: 200px;
    }
}

@media (max-width: 480px) {
    .about-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .about-actions .btn {
        width: 100%;
        max-width: 280px;
        min-width: auto;
    }
}

.about-description p {
    font-size: 1.125rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

.about-skills {
    margin-top: var(--spacing-lg);
}

.about-skills h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.about-actions {
    margin-top: var(--spacing-xl);
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    justify-content: flex-start;
    width: 100%;
}

.about-actions .btn {
    min-width: 120px;
    text-align: center;
}

.about-right {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.skill-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--pure-white);
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal) ease;
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.skill-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    border-color: var(--accent-blue);
}

.skill-item i {
    font-size: 1.25rem;
    color: var(--accent-blue);
    width: 24px;
    text-align: center;
}

.skill-item span {
    font-weight: 500;
    color: var(--text-primary);
}

.skill-item i {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.about-image {
    position: relative;
}

.image-container {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

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

.image-frame {
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid var(--accent-blue);
    border-radius: var(--radius-lg);
    pointer-events: none;
}

/* 工作经历 */
.experience {
    padding: var(--spacing-2xl) 0;
    background: var(--primary-white);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 100px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-light);
}

@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }
}

.timeline-item {
    position: relative;
    padding-left: 150px;
    margin-bottom: var(--spacing-xl);
}

@media (max-width: 768px) {
    .timeline-item {
        padding-left: 60px;
    }
}

.timeline-year {
    position: absolute;
    left: 0;
    top: 0;
    width: 80px;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--accent-blue);
}

@media (max-width: 768px) {
    .timeline-year {
        width: 40px;
        font-size: 0.875rem;
    }
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 94px;
    top: 8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent-blue);
    border: 3px solid var(--pure-white);
    box-shadow: 0 0 0 2px var(--accent-blue);
}

@media (max-width: 768px) {
    .timeline-item::before {
        left: 14px;
    }
}

.timeline-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.timeline-company {
    font-size: 1rem;
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.timeline-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.timeline-achievements {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.achievement {
    padding: 4px 12px;
    background: var(--accent-blue);
    color: var(--pure-white);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

/* 联系部分 */
.contact {
    padding: var(--spacing-xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr;
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .contact {
        padding: var(--spacing-md) 0;
        min-height: auto;
    }
    
    .contact-content {
        max-width: 100%;
        padding: 0;
        width: 100%;
        margin: 0;
    }
    
    /* 确保联系部分的容器宽度与整体一致 */
    .contact .container {
        padding: 0 var(--spacing-sm);
        max-width: 100%;
    }
    
    .contact-details {
        display: flex !important;
        flex-direction: column !important;
        gap: var(--spacing-sm);
        margin: var(--spacing-sm) 0;
        width: 100%;
        box-sizing: border-box;
    }
    
    .contact-item {
        display: flex !important;
        flex-direction: row !important;
        align-items: center !important;
        text-align: left !important;
        gap: var(--spacing-md) !important;
        margin-bottom: var(--spacing-sm);
        padding: var(--spacing-sm);
        border-radius: var(--radius-md);
        width: 100%;
        box-sizing: border-box;
    }
    
    .contact-item i {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }
    
    .contact-item div {
        flex: 1;
        min-width: 0;
    }
    
    .contact-item h4 {
        font-size: 1.1rem;
        margin-bottom: 4px;
    }
    
    .contact-item p {
        font-size: 1rem;
        word-break: normal;
        line-height: 1.3;
        overflow-wrap: break-word;
    }
    
    .social-links {
        gap: var(--spacing-sm);
        margin: var(--spacing-lg) 0;
        justify-content: center;
        width: 100%;
        box-sizing: border-box;
    }
    
    .social-link {
        width: 42px;
        height: 42px;
        font-size: 1.1rem;
    }
    
    .contact-info .btn {
        margin: var(--spacing-lg) auto 0;
        width: 60%;
        max-width: 240px;
    }
    
    /* 关于页面下载简历按钮优化 */
    .contact-section .contact-info .btn {
        margin: var(--spacing-lg) auto 0;
        width: 60%;
        max-width: 240px;
        display: block;
    }
    
    .section-title {
        font-size: 2.2rem;
        margin-bottom: var(--spacing-sm);
    }
    
    .section-subtitle {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-lg);
    }
}

/* 超小屏幕优化 */
@media (max-width: 480px) {
    .contact {
        padding: var(--spacing-sm) 0;
        min-height: auto;
    }
    
    .contact-content {
        padding: 0;
        max-width: 100%;
        margin: 0;
    }
    
    /* 确保联系部分的容器宽度与整体一致 */
    .contact .container {
        padding: 0 var(--spacing-xs);
        max-width: 100%;
    }
    
    .contact-details {
        display: flex !important;
        flex-direction: column !important;
        gap: var(--spacing-xs);
        margin: var(--spacing-xs) 0;
        width: 100%;
        box-sizing: border-box;
    }
    
    .contact-item {
        display: flex;
        flex-direction: row;
        align-items: center;
        text-align: left;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
        min-height: auto;
        width: 100%;
        box-sizing: border-box;
    }
    
    .contact-item i {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
        margin-bottom: 0;
        flex-shrink: 0;
    }
    
    .contact-item div {
        flex: 1;
        min-width: 0;
    }
    
    .contact-item h4 {
        font-size: 1rem;
        margin-bottom: 2px;
    }
    
    .contact-item p {
        font-size: 0.9rem;
        word-break: normal;
        line-height: 1.2;
        overflow-wrap: break-word;
    }
    
    .social-links {
        gap: var(--spacing-sm);
        margin: var(--spacing-md) 0;
        justify-content: center;
        width: 100%;
        box-sizing: border-box;
    }
    
    .social-link {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
        margin-bottom: var(--spacing-xs);
    }
    
    .section-subtitle {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }
    
    .contact-info .btn {
        margin: var(--spacing-md) auto 0;
        width: 80%;
        max-width: 200px;
    }
    
    /* 关于页面下载简历按钮优化 */
    .contact-section .contact-info .btn {
        margin: var(--spacing-md) auto 0;
        width: 80%;
        max-width: 200px;
        display: block;
    }
}

.contact-details {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    max-width: 100%;
}

.contact-info {
    text-align: center;
    width: 100%;
    box-sizing: border-box;
}

.contact-info .btn {
    margin: var(--spacing-lg) auto 0;
    display: inline-flex;
}

.contact-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all var(--transition-normal) ease;
}

.contact-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.contact-item i {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), #b71c1c);
    color: var(--pure-white);
    border-radius: 50%;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    box-shadow: 0 8px 25px rgba(214, 40, 40, 0.3);
}

.contact-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
    margin: var(--spacing-lg) 0;
    justify-content: center;
    flex-wrap: wrap;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-primary), #b71c1c);
    color: var(--pure-white);
    border-radius: 50%;
    text-decoration: none;
    transition: all var(--transition-normal) ease;
    font-size: 1.125rem;
    box-shadow: 0 4px 15px rgba(214, 40, 40, 0.32);
    padding: 0;
    border: 0;
    font: inherit;
}

.social-link:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 25px rgba(214, 40, 40, 0.42);
}

.social-link:focus-visible {
    outline: 2px solid rgba(255, 255, 255, 0.92);
    outline-offset: 3px;
}

/* 二维码浮窗样式 */
.social-link {
    position: relative;
    cursor: pointer;
}

.qr-tooltip {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--pure-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-light);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal) ease;
    z-index: 1000;
    min-width: 200px;
    text-align: center;
    margin-bottom: var(--spacing-sm);
}

.qr-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--pure-white);
}

.social-link:hover .qr-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

.qr-image {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-sm);
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.qr-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* 表单样式 */
.contact-form {
    background: var(--primary-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 16px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background: var(--pure-white);
    transition: all var(--transition-normal) ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

/* 页脚 */
.footer {
    background: var(--primary-black);
    color: var(--pure-white);
    padding: var(--spacing-lg) 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

.footer-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.footer-right {
    display: flex;
    gap: var(--spacing-md);
}

.footer-right a {
    color: var(--pure-white);
    text-decoration: none;
    font-size: 0.875rem;
    opacity: 0.7;
    transition: opacity var(--transition-fast) ease;
}

.footer-right a:hover {
    opacity: 1;
}

.footer-record-link {
    margin-top: 8px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.72);
    text-decoration: none;
    font-size: 0.78rem;
    line-height: 1;
}

.footer-record-link:hover {
    color: rgba(255, 255, 255, 0.95);
}

.footer-record-icon {
    width: 16px;
    height: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.footer-record-icon svg {
    width: 16px;
    height: 16px;
    display: block;
    fill: currentColor;
}

/* 模态框 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
}

.modal.active {
    display: block;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    max-width: 90vw;
    max-height: 90vh;
    background: var(--pure-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 44px;
    height: 44px;
    border: none;
    background: rgba(0, 0, 0, 0.5);
    color: var(--pure-white);
    border-radius: 50%;
    cursor: pointer;
    z-index: 10;
    transition: all var(--transition-normal) ease;
}

.modal-close:hover {
    background: rgba(0, 0, 0, 0.7);
}

.modal-body {
    padding: var(--spacing-lg);
}

/* 加载动画 */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: #0f1115;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal) ease;
}

.loading.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 34px;
    height: 34px;
    border: 3px solid rgba(255, 255, 255, 0.2);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.loading-panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.loading-logo {
    width: 62px;
    height: 62px;
    object-fit: contain;
    filter: drop-shadow(0 6px 18px rgba(214, 40, 40, 0.28));
}

.loading-text {
    color: rgba(255, 255, 255, 0.92);
    font-size: 0.92rem;
    letter-spacing: 0.08em;
}

/* 首页/关于页视频小浮窗 */
.about-video-float {
    position: fixed;
    right: 18px;
    bottom: 18px;
    width: min(360px, calc(100vw - 24px));
    background: rgba(15, 15, 20, 0.92);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 12px;
    box-shadow: 0 14px 42px rgba(0, 0, 0, 0.35);
    overflow: hidden;
    z-index: 1700;
}

.about-video-float-head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 12px;
    color: #fff;
    background: rgba(0, 0, 0, 0.25);
}

.about-video-badge {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 999px;
    background: var(--accent-primary);
    color: #fff;
}

.about-video-float-close {
    margin-left: auto;
    border: 0;
    background: transparent;
    color: #fff;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
}

.about-video-float-body iframe {
    width: 100%;
    height: 210px;
    border: 0;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

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

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary-white);
}

::-webkit-scrollbar-thumb {
    background: var(--text-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-primary);
}

/* 响应式隐藏类 */
@media (max-width: 768px) {
    .section-title {
        font-size: 2.5rem;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-content {
        margin-top: 80px;
    }
    
    .scroll-indicator {
        margin-top: var(--spacing-lg);
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
}

/* 滚动动画 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* 关于页面样式 */
.page-header {
    background: #ffffff;
    color: var(--text-primary);
    padding: calc(var(--spacing-lg) + 12px) 0 var(--spacing-md);
    margin-top: 60px;
    border-bottom: 1px solid rgba(214, 40, 40, 0.12);
}

/* 关于页面导航栏透明效果 */
.about-page .navbar {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(214, 40, 40, 0.12);
    backdrop-filter: saturate(180%) blur(12px);
}

.about-page .navbar.scrolled {
    background: rgba(251, 251, 253, 0.94);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-light);
}

/* 作品页面导航栏透明效果 */
.portfolio-page .navbar {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(214, 40, 40, 0.12);
    backdrop-filter: saturate(180%) blur(12px);
}

.portfolio-page .navbar.scrolled {
    background: rgba(251, 251, 253, 0.94);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-light);
}

.portfolio-detail-page .navbar {
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(214, 40, 40, 0.12);
    backdrop-filter: saturate(180%) blur(12px);
}

.portfolio-detail-page .navbar.scrolled {
    background: rgba(251, 251, 253, 0.94);
    backdrop-filter: saturate(180%) blur(20px);
    border-bottom: 1px solid var(--border-light);
}

.about-page .nav-logo a,
.about-page .nav-link,
.portfolio-page .nav-logo a,
.portfolio-page .nav-link,
.portfolio-detail-page .nav-logo a,
.portfolio-detail-page .nav-link {
    color: var(--text-primary);
    text-shadow: none;
}

.about-page .logo-icon,
.portfolio-page .logo-icon,
.portfolio-detail-page .logo-icon {
    background: #d62828;
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(214, 40, 40, 0.22);
}

.about-page .hamburger span,
.portfolio-page .hamburger span,
.portfolio-detail-page .hamburger span {
    background: var(--text-primary);
    box-shadow: none;
}

.page-header-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.page-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: #d62828;
}

.page-subtitle {
    font-size: 1.25rem;
    color: rgba(29, 29, 31, 0.7);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.breadcrumb {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 0.9rem;
    color: rgba(29, 29, 31, 0.48);
}

.breadcrumb a {
    color: #d62828;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.breadcrumb a:hover {
    color: #b71c1c;
}

.breadcrumb .separator {
    color: var(--text-secondary);
}

/* 关于页面各部分样式 */
.about-section,
.experience-section,
.philosophy-section,
.contact-section {
    padding: var(--spacing-xl) 0;
}

.about-section {
    background: var(--pure-white);
}

.experience-section {
    background: var(--primary-white);
}

.philosophy-section {
    background: var(--pure-white);
}

.contact-section {
    background: var(--primary-white);
}

/* 移动端联系部分优化 */
@media (max-width: 768px) {
    .contact-section .contact-content {
        max-width: 100%;
        padding: 0;
        width: 100%;
        margin: 0;
    }
    
    .contact-section .contact-details {
        width: 100%;
        box-sizing: border-box;
    }
    
    .contact-section .contact-info {
        width: 100%;
        box-sizing: border-box;
    }
    
    /* 确保联系部分的容器宽度与整体一致 */
    .contact-section .container {
        padding: 0 var(--spacing-sm);
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .contact-section .contact-content {
        max-width: 100%;
        padding: 0;
        margin: 0;
    }
    
    /* 确保联系部分的容器宽度与整体一致 */
    .contact-section .container {
        padding: 0 var(--spacing-xs);
        max-width: 100%;
    }
}

/* 个人理念样式 */
.philosophy-content {
    max-width: 1000px;
    margin: 0 auto;
}

.philosophy-text {
    text-align: center;
}

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

.philosophy-item {
    background: var(--pure-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 20px var(--shadow-light);
    text-align: center;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.philosophy-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px var(--shadow-light);
}

.philosophy-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-hover) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

.philosophy-icon i {
    font-size: 2rem;
    color: var(--pure-white);
}

.philosophy-item h3 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.philosophy-item p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 关于预览样式 */
.about-preview {
    padding: var(--spacing-xl) 0;
    background: var(--pure-white);
}

.about-preview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-preview-text {
    padding-right: var(--spacing-lg);
}

.about-preview-description {
    margin-bottom: var(--spacing-lg);
}

.about-preview-description p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.about-preview-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.about-preview-image {
    display: flex;
    justify-content: center;
}

/* 关于页面响应式设计 */
@media (max-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
    
    .about-preview-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .about-preview-text {
        padding-right: 0;
        order: 2;
    }
    
    .about-preview-image {
        order: 1;
    }
    
    .about-preview-actions {
        justify-content: center;
    }
    
    .philosophy-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .page-title {
        font-size: 2rem;
    }
    
    .about-preview-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .about-preview-actions .btn {
        width: 100%;
        max-width: 300px;
    }
}

/* 作品展示样式 - 一次性添加所有相关样式 */
.portfolio-actions {
    margin-top: var(--spacing-md);
    text-align: center;
}

.portfolio-more {
    margin-top: var(--spacing-xl);
    text-align: center;
}

.portfolio-grid-large {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.portfolio-item-large {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow-light);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    background: var(--pure-white);
}

.portfolio-item-large:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px var(--shadow-light);
}

.portfolio-image-large {
    position: relative;
    width: 100%;
    height: 300px;
    overflow: hidden;
}

.portfolio-image-large img,
.portfolio-image-large video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.portfolio-item-large:hover .portfolio-image-large img,
.portfolio-item-large:hover .portfolio-image-large video {
    transform: scale(1.05);
}

.video-play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(0, 0, 0, 0.7);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pure-white);
    font-size: 2rem;
    opacity: 0.8;
    transition: opacity var(--transition-normal);
}

.portfolio-item-large:hover .video-play-overlay {
    opacity: 1;
}

.portfolio-overlay-large {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.9));
    color: var(--pure-white);
    padding: var(--spacing-lg);
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.portfolio-item-large:hover .portfolio-overlay-large {
    transform: translateY(0);
}

.portfolio-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.portfolio-description {
    font-size: 0.9rem;
    margin-bottom: var(--spacing-md);
    opacity: 0.9;
}

.portfolio-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.portfolio-category,
.portfolio-location,
.portfolio-date {
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    backdrop-filter: blur(10px);
}

.portfolio-view-btn {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.portfolio-filters-section {
    background: var(--primary-white);
    padding: var(--spacing-lg) 0;
    border-bottom: 1px solid var(--border-light);
}

.advanced-filters {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.filter-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.filter-buttons .filter-btn {
    padding: 8px 16px;
    border: 1px solid var(--border-light);
    background: var(--pure-white);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.filter-buttons .filter-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.filter-buttons .filter-btn.active {
    background: var(--accent-blue);
    color: var(--pure-white);
    border-color: var(--accent-blue);
}

.sort-select {
    padding: 8px 12px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    background: var(--pure-white);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
}

.portfolio-stats {
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.portfolio-stats span {
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 1.5rem;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xl);
}

.pagination-btn {
    padding: 8px 12px;
    border: 1px solid var(--border-light);
    background: var(--pure-white);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.9rem;
    min-width: 40px;
}

.pagination-btn:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
}

.pagination-btn.active {
    background: var(--accent-blue);
    color: var(--pure-white);
    border-color: var(--accent-blue);
}

.pagination-ellipsis {
    padding: 8px 12px;
    color: var(--text-secondary);
}

.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2000;
    display: none;
}

.portfolio-modal.active {
    display: block;
}

.portfolio-modal .modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
}

.portfolio-modal .modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 1200px;
    max-height: 90vh;
    background: var(--pure-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.portfolio-modal .modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: rgba(0, 0, 0, 0.7);
    border: none;
    border-radius: 50%;
    color: var(--pure-white);
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 10;
    transition: background var(--transition-fast);
}

.portfolio-modal .modal-close:hover {
    background: rgba(0, 0, 0, 0.9);
}

.portfolio-modal .modal-body {
    max-height: 90vh;
    overflow-y: auto;
}

.portfolio-modal-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
}

.portfolio-modal-media {
    background: var(--primary-black);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 400px;
}

.portfolio-modal-media img,
.portfolio-modal-media video {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.portfolio-modal-info {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.portfolio-modal-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.portfolio-modal-description {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin: 0;
}

.portfolio-modal-meta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

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

.meta-item label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 80px;
}

.meta-item span {
    color: var(--text-secondary);
}

.portfolio-modal-story h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.portfolio-modal-story p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 作品展示响应式设计 */
@media (max-width: 1024px) {
    .portfolio-grid-large {
        grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    }
    
    .portfolio-modal-content {
        grid-template-columns: 1fr;
    }
    
    .portfolio-modal-media {
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .portfolio-grid-large {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .portfolio-image-large {
        height: 250px;
    }
    
    .advanced-filters {
        gap: var(--spacing-md);
    }
    
    .filter-buttons {
        gap: var(--spacing-xs);
    }
    
    .filter-buttons .filter-btn {
        padding: 6px 12px;
        font-size: 0.8rem;
    }
    
    .portfolio-modal .modal-content {
        width: 95%;
        max-height: 95vh;
    }
    
    .portfolio-modal-info {
        padding: var(--spacing-lg);
    }
    
    .portfolio-modal-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .portfolio-image-large {
        height: 200px;
    }
    
    .portfolio-overlay-large {
        padding: var(--spacing-md);
    }
    
    .portfolio-title {
        font-size: 1.2rem;
    }
    
    .portfolio-description {
        font-size: 0.8rem;
    }
    
    .portfolio-meta {
        gap: var(--spacing-xs);
    }
    
    .portfolio-category,
    .portfolio-location,
    .portfolio-date {
        font-size: 0.7rem;
        padding: 3px 6px;
    }
}


/* Background music toggle */
.bgm-toggle {
    position: fixed;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.45);
    color: #ffffff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    z-index: 1600;
    cursor: pointer;
    transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    backdrop-filter: blur(6px);
}

.bgm-toggle:hover {
    transform: scale(1.06);
    background: rgba(0, 0, 0, 0.7);
    border-color: rgba(255, 255, 255, 0.45);
}

.bgm-toggle.is-playing i {
    animation: bgmPulse 1.5s ease-in-out infinite;
}

.bgm-toggle.is-empty {
    opacity: 0.65;
}

@keyframes bgmPulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.18);
    }
}

@media (max-width: 768px) {
    .bgm-toggle {
        top: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
    }
}