/* ==================== 主页专用样式 ====================
 * 仅包含主页 (index.html) 特有的样式
 * 依赖: common.css（必须先加载）
 * ================================================= */

/* ========== 首屏Hero区域 ========== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 8rem 20px 4rem;
    background-color: #e6f2ff;
    position: relative;
    overflow: hidden;
}

/* Matrix代码雨背景 */
.matrix-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    opacity: 0.15;
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: 5rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

/* 右上角背景图片 - 嵌入背景 */
.top-right-image {
    position: absolute;
    top: 5%;
    right: 2%;
    width: 25%;
    max-width: 350px;
    min-width: 200px;
    height: auto;
    aspect-ratio: 1;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.top-right-image img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center;
    /* 柔化边缘效果 - 与背景融合 */
    mask-image: radial-gradient(ellipse 70% 70% at center, black 50%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 70% 70% at center, black 50%, transparent 100%);
    filter: blur(1px) brightness(1.05);
    opacity: 0.4;
    mix-blend-mode: multiply;
    position: relative;
}

.top-right-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse 70% 70% at center, 
        transparent 0%,
        transparent 40%,
        rgba(230, 242, 255, 0.2) 60%,
        rgba(230, 242, 255, 0.5) 80%,
        rgba(230, 242, 255, 0.8) 100%);
    pointer-events: none;
    z-index: 1;
}

.top-right-image::after {
    content: '';
    position: absolute;
    top: -20px;
    left: -20px;
    right: -20px;
    bottom: -20px;
    background: radial-gradient(ellipse 80% 80% at center, 
        rgba(230, 242, 255, 0.1) 0%,
        rgba(230, 242, 255, 0.3) 50%,
        rgba(230, 242, 255, 0.5) 80%,
        rgba(230, 242, 255, 0.7) 100%);
    pointer-events: none;
    z-index: -1;
    filter: blur(15px);
}

.hero-image {
    position: relative;
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    gap: 1rem;
}

.hero-image img {
    border-radius: 0;
    border: 3px solid var(--terminal-green);
    box-shadow: 0 0 20px var(--terminal-shadow), inset 0 0 20px var(--terminal-shadow);
    object-fit: cover;
    transition: transform 0.3s ease;
    filter: none;
}

.hero-image .main-photo {
    width: 100%;
    max-width: 380px;
    height: auto;
}

.hero-image img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px var(--terminal-shadow);
}

.hero-content {
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-family: "Times New Roman", Times, serif;
}

.greeting {
    display: block;
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.greeting::before {
    content: '$ ';
    color: var(--terminal-green);
}

.name {
    display: block;
    color: var(--terminal-green-bright);
    text-shadow: var(--terminal-glow);
    animation: glow 2s ease-in-out infinite;
}

/* 浅色模式下去除名字发光动画 */
[data-theme="light"] .name {
    animation: none;
    text-shadow: none;
    color: var(--text-primary);
}

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--terminal-green);
    margin-bottom: 2rem;
    line-height: 1.8;
    font-family: "Times New Roman", Times, serif;
    opacity: 0.8;
}

.hero-subtitle::before {
    content: '> ';
    color: var(--terminal-green-bright);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
}

.scroll-indicator {
    position: absolute;
    bottom: 0.5rem;
    animation: bounce 2s infinite, scrollColorPulse 3s ease-in-out infinite;
    font-size: 2rem;
    color: var(--terminal-green);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

@keyframes scrollColorPulse {

    0%,
    100% {
        color: var(--terminal-green);
        text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.8);
    }

    50% {
        color: #00bfff;
        text-shadow: 0 0 20px rgba(0, 191, 255, 0.8);
    }
}

/* 浅色模式下去除滚动提示颜色脉冲 */
[data-theme="light"] .scroll-indicator {
    animation: bounce 2s infinite;
    color: var(--text-secondary);
    text-shadow: none;
}

/* ========== 照片轮播区域 ========== */
.carousel-section {
    padding: 4rem 0;
    background-color: #e6f2ff;
}

.carousel-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border-radius: 0;
    border: 3px solid var(--terminal-green);
    box-shadow: 0 0 30px rgba(var(--glow-rgb), 0.3), inset 0 0 20px rgba(var(--glow-rgb), 0.1);
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-slide {
    min-width: 100%;
    position: relative;
    display: none;
}

.carousel-slide.active {
    display: block;
}

.carousel-slide a {
    display: block;
    position: relative;
    text-decoration: none;
    cursor: pointer;
}

.carousel-slide a:hover img {
    filter: contrast(1.2) brightness(0.95) sepia(0.1) hue-rotate(90deg);
    transform: scale(1.02);
    transition: all 0.3s ease;
}

.carousel-slide a:hover .slide-caption {
    background: linear-gradient(to top, rgba(var(--glow-rgb), 0.2), transparent);
}

.carousel-slide img {
    width: 100%;
    height: 500px;
    object-fit: cover;
    filter: contrast(1.2) brightness(0.85) sepia(0.1) hue-rotate(90deg);
    transition: all 0.3s ease;
}

.slide-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    color: var(--terminal-green-bright);
    padding: 2rem;
    font-size: 1.5rem;
    font-weight: 600;
    font-family: "Times New Roman", Times, serif;
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.8);
    transition: all 0.3s ease;
}

.slide-caption i {
    font-size: 1rem;
    margin-left: 0.5rem;
    opacity: 0.8;
}

.slide-caption::before {
    content: '> ';
    color: var(--terminal-green);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(10, 10, 10, 0.9);
    border: 2px solid var(--terminal-green);
    width: 50px;
    height: 50px;
    border-radius: 0;

    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--terminal-green);
    transition: all 0.3s ease;
    z-index: 10;
    font-family: "Times New Roman", Times, serif;
}

.carousel-btn:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    transform: translateY(-50%) scale(1.1);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.8);
}

.carousel-btn.prev {
    left: 1rem;
}

.carousel-btn.prev::before {
    content: '<';
}

.carousel-btn.next {
    right: 1rem;
}

.carousel-btn.next::before {
    content: '>';
}

.carousel-indicators {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.carousel-indicator {
    width: 12px;
    height: 12px;
    border-radius: 0;
    background-color: rgba(var(--glow-rgb), 0.3);
    border: 1px solid var(--terminal-green);

    transition: all 0.3s ease;
}

.carousel-indicator.active {
    background-color: var(--terminal-green);
    width: 30px;
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.8);
}

/* ========== 关于我区域 ========== */
.about {
    padding: 6rem 0;
    background-color: #e6f2ff;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(var(--glow-rgb), 0.03) 2px,
            rgba(var(--glow-rgb), 0.03) 4px);
    pointer-events: none;
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    align-items: start;
    /* 改为顶部对齐 */
    position: relative;
    z-index: 1;
}

.about-image {
    position: sticky;
    top: 100px;
    /* 文字向上固定 */
    align-self: start;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.about-image img {
    width: 100%;
    border-radius: 4px;
    /* 轻微圆角 */
    border: none;
    /* 移除厚重边框 */
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    /* 现代悬浮阴影 */
    filter: contrast(1.05) brightness(0.95);
    /* 更自然的滤镜 */
}

/* 自我评价文字样式 */
.self-evaluation {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--terminal-green-bright);
    font-family: "Times New Roman", Times, serif;
    text-align: center;
    margin: 0;
    text-shadow: var(--terminal-glow);
    letter-spacing: 2px;
}

.self-evaluation.text-en {
    display: none;
    opacity: 0;
}

.self-evaluation.text-zh {
    display: block;
    opacity: 1;
}

.about-text h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--terminal-green-bright);
    font-family: "Times New Roman", Times, serif;
    text-transform: uppercase;
}

.about-text h3::before {
    content: '> ';
    color: var(--terminal-green);
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--terminal-green);
    line-height: 1.8;
    font-family: "Times New Roman", Times, serif;
    opacity: 0.9;
    padding-left: 20px;
    border-left: 3px solid var(--terminal-green-dark);
}

.about-text p::before {
    content: '';
    color: var(--terminal-green-dark);
    margin-left: -20px;
}

/* 英文段落样式 */
.about-text p.text-en {
    /* opacity: 0.75; 移除此行，交由动画控制 */
    font-size: 0.95em;
    /* 稍微调大一点 */
    font-weight: 400;
    /* 确保不适用过细的字重 */
    letter-spacing: 0.02em;
    /* 增加一点字间距提升阅读感 */
    line-height: 1.7;
    /* 优化行高 */
    margin-bottom: 1rem;
    border-left-color: var(--terminal-green-dark);
    background: rgba(var(--glow-rgb), 0.03);
    padding: 0.3rem 1rem 0.3rem 20px;
    border-radius: 2px;
}

/* 英文段落格式 */
.about-text p.text-en::before {
    content: '';
    color: var(--terminal-green-dark);
    margin-left: -20px;
}

.about-text p.text-en::after {
    content: none;
}

.skills {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.skill-tag {
    padding: 0.5rem 1rem;
    background-color: transparent;
    color: var(--terminal-green);
    border: 1px solid var(--terminal-green);
    border-radius: 0;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: "Times New Roman", Times, serif;
    transition: all 0.3s ease;
}

.skill-tag::before {
    content: '#';
}

.skill-tag:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

/* 技能分类 */
/* ========== 技能矩阵 (Minimalist Tag Matrix) ========== */
.skills-matrix {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem 2rem;
}

@media (max-width: 768px) {
    .skills-matrix {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.matrix-category {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.category-title {
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    font-size: 0.95rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0.9;
}

.category-title i {
    opacity: 0.7;
}

.matrix-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.skill-tag {
    font-family: "Times New Roman", Times, serif;
    font-size: 0.85rem;
    padding: 0.3rem 0.9rem;
    border-radius: 16px;
    /* 更圆润的胶囊形状 */
    transition: all 0.3s ease;
    cursor: default;
    border: none;
    /* 移除边框 */
}

/* 高亮标签 (Primary) */
.skill-tag.primary {
    background-color: rgba(var(--glow-rgb), 0.08);
    color: var(--terminal-green-bright);
}

.skill-tag.primary:hover {
    background-color: rgba(var(--glow-rgb), 0.15);
    transform: translateY(-1px);
}

/* 次要标签 (Secondary) */
.skill-tag.secondary {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-secondary);
}

.skill-tag.secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
}

/* Light Mode Adaptations */
[data-theme="light"] .skill-tag.primary {
    background-color: rgba(var(--glow-rgb), 0.08);
    color: var(--accent-color);
    font-weight: 500;
}

[data-theme="light"] .skill-tag.secondary {
    background-color: rgba(0, 0, 0, 0.03);
    color: var(--text-secondary);
}

[data-theme="light"] .skill-tag.secondary:hover {
    background-color: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
}

/* ========== 学生时代预览区域 - 学术旅行时间线 ========== */
.student-life {
    padding: 6rem 0;
    background: #e6f2ff;
    position: relative;
    overflow: hidden;
}

.student-life::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(0deg,
            transparent,
            transparent 2px,
            rgba(var(--glow-rgb), 0.03) 2px,
            rgba(var(--glow-rgb), 0.03) 4px);
    pointer-events: none;
}

/* 学术旅行标题和语言切换 */
.academic-journey-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.academic-journey-header .section-title {
    margin-bottom: 0;
    text-align: left;
}

.academic-journey-header .section-title.text-en {
    display: none !important;
}

.academic-journey-header .section-title.text-zh {
    display: block !important;
}

.lang-toggle-academic {
    background: transparent;
    border: 1px solid var(--terminal-green);
    padding: 0.4rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: "Times New Roman", Times, serif;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    cursor: pointer;
    color: var(--terminal-green);
}

.lang-toggle-academic .lang-option {
    color: var(--terminal-green);
    opacity: 0.5;
    transition: all 0.3s ease;
    cursor: pointer;
}

.lang-toggle-academic .lang-option.active {
    opacity: 1;
    font-weight: bold;
    color: var(--terminal-green-bright);
}

.lang-toggle-academic .lang-divider {
    color: var(--terminal-green-dim);
    opacity: 0.3;
}

.lang-toggle-academic:hover {
    border-color: var(--terminal-green-bright);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.3);
}

/* 时间线容器 */
.academic-timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
    padding-left: 60px;
}

/* 时间线节点 */
.timeline-node {
    position: relative;
    margin-bottom: 4rem;
}

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

.timeline-node:last-child .timeline-connector {
    display: none;
}

/* 时间线左侧竖线 */
.academic-timeline::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom,
        var(--terminal-green) 0%,
        var(--terminal-green) 100%);
    z-index: 0;
}

/* 时间线节点内容 */
.timeline-content {
    background: rgba(var(--glow-rgb), 0.05);
    border: 2px solid var(--terminal-green);
    padding: 2rem;
    border-radius: 0;
    transition: all 0.3s ease;
    position: relative;
}

.timeline-content:hover {
    border-color: var(--terminal-green-bright);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.4);
    transform: translateX(5px);
}

.timeline-main {
    cursor: pointer;
}

.timeline-main h3 {
    font-size: 1rem;
    color: var(--terminal-green-dim);
    margin-bottom: 0.5rem;
    font-family: "Times New Roman", Times, serif;
    font-weight: 600;
}

.timeline-main h4 {
    font-size: 1.5rem;
    color: var(--terminal-green-bright);
    margin-bottom: 0.5rem;
    font-family: "Times New Roman", Times, serif;
    font-weight: 700;
}

.timeline-main p {
    font-size: 1rem;
    color: var(--terminal-green);
    margin-bottom: 0;
    font-family: "Times New Roman", Times, serif;
    opacity: 0.9;
}

/* 详细信息（默认隐藏） */
.timeline-details {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.4s ease, padding 0.4s ease;
    padding: 0;
    margin-top: 0;
}

.timeline-content:hover .timeline-details {
    max-height: 1000px;
    opacity: 1;
    padding-top: 1.5rem;
    margin-top: 1rem;
    border-top: 1px solid var(--terminal-green-dark);
}

.detail-item {
    margin-bottom: 1rem;
    font-size: 0.9rem;
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    line-height: 1.6;
}

.detail-item:last-child {
    margin-bottom: 0;
}

.detail-item strong {
    color: var(--terminal-green-bright);
    font-weight: 600;
}

/* 连接线和箭头 */
.timeline-connector {
    position: absolute;
    left: -40px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 2px;
    display: flex;
    align-items: center;
    z-index: 1;
}

.connector-line {
    width: 30px;
    height: 2px;
    background: var(--terminal-green);
    position: relative;
}

.connector-arrow {
    color: var(--terminal-green);
    font-size: 1.2rem;
    line-height: 1;
    margin-left: -2px;
}

/* 时间线节点左侧圆点 */
.timeline-node::before {
    content: '';
    position: absolute;
    left: -50px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--terminal-green);
    border: 3px solid #e6f2ff;
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
    z-index: 2;
    transition: all 0.3s ease;
}

.timeline-content:hover ~ .timeline-connector,
.timeline-node:hover::before {
    background: var(--terminal-green-bright);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.8);
    transform: translateY(-50%) scale(1.2);
}

/* 语言切换样式 - 默认显示中文 */
.timeline-main.text-en,
.timeline-details.text-en {
    display: none;
    opacity: 0;
}

.timeline-main.text-zh,
.timeline-details.text-zh {
    display: block;
    opacity: 1;
}

/* 当切换为英文时，通过JavaScript动态设置display */
.timeline-main.text-en.text-fade-in,
.timeline-details.text-en.text-fade-in {
    display: block !important;
    opacity: 1 !important;
}

.timeline-main.text-zh.text-fade-out,
.timeline-details.text-zh.text-fade-out {
    display: none !important;
    opacity: 0 !important;
}

.memory-card {
    background: rgba(var(--glow-rgb), 0.05);
    border: 3px solid var(--terminal-green);
    padding: 3rem;
    text-align: center;

    transition: all 0.5s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.3), inset 0 0 30px rgba(var(--glow-rgb), 0.1);
}

.memory-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg,
            transparent 30%,
            rgba(var(--glow-rgb), 0.1) 50%,
            transparent 70%);
    transform: rotate(45deg);
    transition: all 0.6s ease;
}

.memory-card:hover::before {
    left: 100%;
}

.memory-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 0 40px rgba(var(--glow-rgb), 0.6), inset 0 0 40px rgba(var(--glow-rgb), 0.2);
    border-color: var(--terminal-green-bright);
}

.memory-icon {
    font-size: 4rem;
    /* 渐变色图标：从金色到绿色 */
    background: linear-gradient(135deg, #ffc800 0%, #00ff00 50%, #00bfff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 20px rgba(255, 200, 0, 0.6)) drop-shadow(0 0 10px rgba(var(--glow-rgb), 0.4));
    animation: float 3s ease-in-out infinite, colorShift 5s ease-in-out infinite;
}

@keyframes colorShift {

    0%,
    100% {
        filter: drop-shadow(0 0 20px rgba(255, 200, 0, 0.6)) drop-shadow(0 0 10px rgba(var(--glow-rgb), 0.4));
    }

    25% {
        filter: drop-shadow(0 0 20px rgba(var(--glow-rgb), 0.6)) drop-shadow(0 0 10px rgba(0, 191, 255, 0.4));
    }

    50% {
        filter: drop-shadow(0 0 20px rgba(0, 191, 255, 0.6)) drop-shadow(0 0 10px rgba(255, 105, 180, 0.4));
    }

    75% {
        filter: drop-shadow(0 0 20px rgba(255, 140, 0, 0.6)) drop-shadow(0 0 10px rgba(255, 200, 0, 0.4));
    }
}

.memory-card h3 {
    font-size: 2rem;
    color: var(--terminal-green-bright);
    margin-bottom: 1rem;
    font-family: "Times New Roman", Times, serif;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.memory-card h3::before {
    content: '< ';
    color: var(--terminal-green);
}

.memory-card h3::after {
    content: ' >';
    color: var(--terminal-green);
}

.memory-card>p {
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.memory-stats {
    display: flex;
    justify-content: space-around;
    margin: 2rem 0;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--terminal-green-dark);
}

.memory-stats span {
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    font-size: 0.9rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.memory-stats i {
    font-size: 1.5rem;
    color: var(--terminal-green-bright);
    filter: drop-shadow(0 0 6px rgba(var(--glow-rgb), 0.6));
}

.explore-btn {
    background: transparent;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green);
    padding: 1rem 2rem;
    font-family: "Times New Roman", Times, serif;
    font-size: 1.1rem;

    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 1rem;
}

.explore-btn::before {
    content: '[';
    margin-right: 5px;
}

.explore-btn::after {
    content: ']';
    margin-left: 5px;
}

.explore-btn:hover {
    background: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.8);
    transform: translateY(-2px);
}

.preview-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.preview-item {
    background: rgba(0, 0, 0, 0.5);
    border: 2px solid var(--terminal-green-dark);
    padding: 2rem;
    text-align: center;

    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.preview-item:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.1);
    transform: scale(1.05);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.5);
}

.preview-item i {
    font-size: 2.5rem;
    color: var(--terminal-green-bright);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

.preview-item span {
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    font-size: 1rem;
    text-transform: uppercase;
}

.preview-item::before {
    content: '> ';
    color: var(--terminal-green-dark);
    font-size: 1.2rem;
}

/* 荣誉证书项特殊样式（可点击） */
/* 为不同类别添加特定样式 - 统一绿色主题 */
/* Academic Life */
.preview-item[data-category="study"] {
    cursor: pointer;
}

.preview-item[data-category="study"] i {
    color: var(--terminal-green-bright);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

.preview-item[data-category="study"]:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.08);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.3);
}

/* Activities (仅展示，不可点击) */
.preview-item[data-category="activities"] i {
    color: var(--terminal-green-bright);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

.preview-item[data-category="activities"]:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.08);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.3);
}

/* Friendships (仅展示，不可点击) */
.preview-item[data-category="friends"] i {
    color: var(--terminal-green-bright);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

.preview-item[data-category="friends"]:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.08);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.3);
}

/* Achievements - 保持金色强调 */
.preview-item[data-category="achievements"] {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.08);
    position: relative;
    cursor: pointer;
}

.preview-item[data-category="achievements"]::after {
    content: '→';
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--terminal-green);
    opacity: 0;
    transition: all 0.3s ease;
}

.preview-item[data-category="achievements"]:hover::after {
    opacity: 1;
    right: 10px;
}

.preview-item[data-category="achievements"]:hover {
    background: rgba(var(--glow-rgb), 0.15);
    box-shadow: 0 0 25px rgba(var(--glow-rgb), 0.6);
    transform: scale(1.08);
}

/* 为成就项添加金色图标 */
.preview-item[data-category="achievements"] i {
    color: #ffc800;
    text-shadow: 0 0 10px rgba(255, 200, 0, 0.6);
}

/* ========== 作品集区域 ========== */
.portfolio {
    padding: 6rem 0;
    background-color: #e6f2ff;
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    perspective: 1000px;
}

.portfolio-item {
    background-color: rgba(var(--glow-rgb), 0.05);
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.2);
    border: 2px solid var(--terminal-green-dark);
    transition: transform 0.6s;
    transform-style: preserve-3d;
    position: relative;
}

.portfolio-item:hover {
    transform: rotateY(5deg) rotateX(5deg) translateY(-10px);
    box-shadow: 0 0 30px rgba(var(--glow-rgb), 0.5);
    border-color: var(--terminal-green);
}

.portfolio-item::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg,
            transparent 30%,
            rgba(var(--glow-rgb), 0.1) 50%,
            transparent 70%);
    opacity: 0;
    transition: opacity 0.3s;
    pointer-events: none;
    z-index: -1;
}

.portfolio-item:hover::before {
    opacity: 1;
    animation: shine 1.5s infinite;
}

@keyframes shine {
    0% {
        transform: translateX(-100%) rotate(45deg);
    }

    100% {
        transform: translateX(200%) rotate(45deg);
    }
}

.portfolio-image {
    position: relative;
    overflow: hidden;
    height: 250px;
    border-bottom: 2px solid var(--terminal-green-dark);
}

.portfolio-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
    filter: contrast(1.2) brightness(0.8) sepia(0.2) hue-rotate(90deg);
}

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

.portfolio-info {
    padding: 1.5rem;
}

.portfolio-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--terminal-green-bright);
    font-family: "Times New Roman", Times, serif;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.portfolio-info h3::before {
    content: '$ ./';
    color: var(--terminal-green);
    font-size: 0.9em;
    margin-right: 5px;
}

.portfolio-info p {
    color: var(--terminal-green);
    margin-bottom: 1rem;
    font-family: "Times New Roman", Times, serif;
    opacity: 0.8;
}

.portfolio-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.portfolio-tags span {
    padding: 0.25rem 0.75rem;
    background-color: transparent;
    color: var(--terminal-green);
    border: 1px solid var(--terminal-green);
    border-radius: 0;
    font-size: 0.85rem;
    font-family: "Times New Roman", Times, serif;
    transition: all 0.3s ease;
}

.portfolio-tags span::before {
    content: '#';
}

.portfolio-tags span:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

/* 项目详情 */
.portfolio-details {
    margin: 1rem 0;
    padding: 1rem;
    background-color: rgba(var(--glow-rgb), 0.03);
    border-left: 3px solid var(--terminal-green-dark);
}

.project-highlights {
    font-size: 0.9rem;
    color: var(--terminal-green-bright);
    font-weight: 600;
    margin-bottom: 0.5rem;
    font-family: "Times New Roman", Times, serif;
}

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

.feature-list li {
    font-size: 0.85rem;
    color: var(--terminal-green);
    padding: 0.25rem 0;
    padding-left: 1.5rem;
    position: relative;
    font-family: "Times New Roman", Times, serif;
    opacity: 0.9;
}

.feature-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--terminal-green-dim);
}

/* 项目链接 */
.project-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--terminal-green-dark);
}

.project-link {
    flex: 1;
    padding: 0.5rem 1rem;
    background-color: transparent;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green-dark);
    text-decoration: none;
    text-align: center;
    font-family: "Times New Roman", Times, serif;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.project-link:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    border-color: var(--terminal-green);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.6);
    transform: translateY(-2px);
}

.project-link i {
    font-size: 1rem;
}

/* 项目状态徽章 */
.project-status {
    margin-top: 1rem;
}

.status-badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    font-size: 0.75rem;
    font-family: "Times New Roman", Times, serif;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 0;
    font-weight: 600;
}

.status-badge.in-progress {
    background-color: rgba(255, 165, 0, 0.2);
    color: #ffa500;
    border: 2px solid #ffa500;
    animation: pulse-orange 2s infinite;
}

.status-badge.planned {
    background-color: rgba(0, 191, 255, 0.2);
    color: #00bfff;
    border: 2px solid #00bfff;
}

@keyframes pulse-orange {

    0%,
    100% {
        box-shadow: 0 0 5px rgba(255, 165, 0, 0.5);
    }

    50% {
        box-shadow: 0 0 15px rgba(255, 165, 0, 0.8);
    }
}

/* ========== AI对话界面 ========== */
.ai-chat {
    padding: 6rem 0;
    background-color: #e6f2ff;
}

.quick-questions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-bottom: 2rem;
}

.quick-question {
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    border: 2px solid var(--terminal-green-dark);
    border-radius: 0;

    transition: all 0.3s ease;
    font-size: 0.95rem;
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
}

.quick-question::before {
    content: '? ';
    color: var(--terminal-green-bright);
}

.quick-question:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    border-color: var(--terminal-green);
    transform: translateY(-2px);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.6);
}

.chat-container {
    max-width: 900px;
    margin: 0 auto;
    background-color: rgba(0, 0, 0, 0.3);
    border-radius: 0;
    overflow: hidden;
    box-shadow: 0 0 40px rgba(var(--glow-rgb), 0.4), inset 0 0 30px rgba(var(--glow-rgb), 0.1);
    border: 3px solid var(--terminal-green);
}

.chat-messages {
    height: 500px;
    overflow-y: auto;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.message {
    display: flex;
    gap: 1rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.user-message {
    flex-direction: row-reverse;
}

.message-avatar {
    width: 40px;
    height: 40px;
    border-radius: 0;
    background-color: rgba(var(--glow-rgb), 0.2);
    border: 2px solid var(--terminal-green);
    color: var(--terminal-green-bright);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-family: "Times New Roman", Times, serif;
    font-weight: bold;
}

.user-message .message-avatar {
    background-color: rgba(var(--glow-rgb), 0.3);
    border-color: var(--terminal-green-bright);
}

.message-content {
    max-width: 70%;
}

.message-text {
    background-color: rgba(var(--glow-rgb), 0.05);
    padding: 1rem 1.25rem;
    border-radius: 0;
    line-height: 1.6;
    border: 1px solid var(--terminal-green-dark);
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
}

.user-message .message-text {
    background-color: rgba(var(--glow-rgb), 0.1);
    color: var(--terminal-green-bright);
    border: 1px solid var(--terminal-green);
}

.user-message .message-text::before {
    content: '> ';
    color: var(--terminal-green-bright);
}

.message-time {
    font-size: 0.75rem;
    color: var(--terminal-green-dark);
    margin-top: 0.5rem;
    padding: 0 0.25rem;
    font-family: "Times New Roman", Times, serif;
}

.message-time::before {
    content: '[';
}

.message-time::after {
    content: ']';
}

/* 代码块样式 */
.message-text pre {
    background-color: rgba(0, 0, 0, 0.7);
    padding: 1rem;
    border-radius: 0;
    overflow-x: auto;
    margin: 0.5rem 0;
    border: 1px solid var(--terminal-green-dark);
    box-shadow: inset 0 0 10px rgba(var(--glow-rgb), 0.1);
}

.message-text code {
    font-family: "Times New Roman", Times, serif;
    font-size: 0.9rem;
    color: var(--terminal-green);
}

.message-text :not(pre)>code {
    background-color: rgba(var(--glow-rgb), 0.1);
    padding: 0.2rem 0.4rem;
    border-radius: 0;
    color: var(--terminal-green-bright);
    border: 1px solid var(--terminal-green-dark);
}

/* 正在输入指示器 */
.typing-indicator {
    display: flex;
    gap: 1rem;
    padding: 0 2rem;
}

.typing-dots {
    display: flex;
    align-items: center;
    gap: 0.3rem;
    background-color: rgba(var(--glow-rgb), 0.05);
    padding: 1rem 1.25rem;
    border-radius: 0;
    border: 1px solid var(--terminal-green-dark);
}

.typing-dots span {
    width: 8px;
    height: 8px;
    border-radius: 0;
    background-color: var(--terminal-green);
    animation: typingDot 1.4s infinite;
    box-shadow: 0 0 5px rgba(var(--glow-rgb), 0.6);
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typingDot {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.4;
    }

    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* 聊天输入区域 */
.chat-input-container {
    background-color: rgba(var(--glow-rgb), 0.05);
    padding: 1.5rem;
    border-top: 2px solid var(--terminal-green);
    display: flex;
    gap: 1rem;
    align-items: center;
}

.chat-input-container::before {
    content: '$';
    color: var(--terminal-green-bright);
    font-family: "Times New Roman", Times, serif;
    font-size: 1.2rem;
    font-weight: bold;
}

.chat-controls {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.control-btn {
    background: transparent;
    border: 1px solid var(--terminal-green-dark);
    color: var(--terminal-green);
    padding: 0.5rem 1rem;
    border-radius: 0;

    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: "Times New Roman", Times, serif;
}

.control-btn:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.chat-input-wrapper {
    display: flex;
    gap: 0.75rem;
    align-items: flex-end;
    flex: 1;
}

.chat-input {
    flex: 1;
    padding: 0.875rem 1rem;
    border: 2px solid var(--terminal-green-dark);
    border-radius: 0;
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    font-size: 1rem;
    resize: none;
    max-height: 120px;
    transition: all 0.3s ease;
}

.chat-input:focus {
    outline: none;
    border-color: var(--terminal-green);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.5);
    background-color: rgba(0, 0, 0, 0.7);
}

.chat-input::placeholder {
    color: var(--terminal-green-dark);
}

.send-btn {
    background-color: transparent;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green);
    padding: 0.875rem 1.5rem;
    border-radius: 0;

    transition: all 0.3s ease;
    font-size: 1.1rem;
    font-family: "Times New Roman", Times, serif;
    font-weight: 600;
    text-transform: uppercase;
}

.send-btn::before {
    content: '[';
}

.send-btn::after {
    content: ']';
}

.send-btn:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.8);
}

.send-btn:disabled {
    background-color: transparent;
    border-color: var(--terminal-green-dark);
    color: var(--terminal-green-dark);
    cursor: not-allowed;
    transform: none;
    opacity: 0.3;
}

/* ========== 页脚区域 ========== */
.footer {
    background-color: #e6f2ff;
    padding: 4rem 0 2rem;
    border-top: 3px solid var(--terminal-green);
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 20px;
    background: repeating-linear-gradient(90deg,
            var(--terminal-green) 0px,
            var(--terminal-green) 10px,
            transparent 10px,
            transparent 20px);
    opacity: 0.3;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--terminal-green-bright);
    font-family: "Times New Roman", Times, serif;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-section h3::before {
    content: '[';
    color: var(--terminal-green);
}

.footer-section h3::after {
    content: ']';
    color: var(--terminal-green);
}

.footer-section p,
.footer-section ul {
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    opacity: 0.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li::before {
    content: '> ';
    color: var(--terminal-green-dark);
}

.footer-section a {
    color: var(--terminal-green);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-section a:hover {
    color: var(--terminal-green-bright);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.8);
}

/* 联系信息项 */
.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.5rem;
    background-color: rgba(var(--glow-rgb), 0.03);
    border-left: 2px solid var(--terminal-green-dark);
    transition: all 0.3s ease;
}

.contact-item:hover {
    background-color: rgba(var(--glow-rgb), 0.08);
    border-left-color: var(--terminal-green);
}

.contact-item i {
    color: var(--terminal-green);
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
    transition: all 0.3s ease;
}

.contact-text {
    flex: 1;
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
    font-size: 0.9rem;
}

.copy-btn {
    background: transparent;
    border: 1px solid var(--terminal-green-dark);
    color: var(--terminal-green);
    padding: 0.25rem 0.5rem;

    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.copy-btn:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.footer-description {
    margin: 1rem 0;
    line-height: 1.6;
}

.contact-buttons {
    margin-top: 1rem;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green);
    text-decoration: none;
    font-family: "Times New Roman", Times, serif;
    transition: all 0.3s ease;
}

.contact-button:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.6);
    transform: translateY(-2px);
}

/* 复制提示消息 */
.copy-toast {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: rgba(var(--glow-rgb), 0.95);
    color: var(--terminal-bg);
    padding: 1rem 1.5rem;
    border-radius: 0;
    border: 2px solid var(--terminal-green-bright);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.8);
    font-family: "Times New Roman", Times, serif;
    font-weight: 600;
    z-index: 10000;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.copy-toast.show {
    opacity: 1;
    transform: translateY(0);
}

.copy-toast i {
    font-size: 1.2rem;
}

.subscribe-form {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.subscribe-form input {
    flex: 1;
    padding: 0.75rem;
    border: 2px solid var(--terminal-green-dark);
    border-radius: 0;
    background-color: rgba(0, 0, 0, 0.5);
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
}

.subscribe-form input:focus {
    outline: none;
    border-color: var(--terminal-green);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.subscribe-form input::placeholder {
    color: var(--terminal-green-dark);
}

.subscribe-form button {
    padding: 0.75rem 1.5rem;
    background-color: transparent;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green);
    border-radius: 0;

    transition: all 0.3s ease;
    font-family: "Times New Roman", Times, serif;
    text-transform: uppercase;
}

.subscribe-form button:hover {
    background-color: var(--terminal-green);
    color: var(--terminal-bg);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.6);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 2rem 0;
}

.social-link {
    width: 50px;
    height: 50px;
    border-radius: 0;
    background-color: transparent;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: translateY(-5px) scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 2px solid var(--terminal-green-dark);
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
}

.footer-bottom::before {
    content: '[SYSTEM] ';
    color: var(--terminal-green-dark);
}

.footer-bottom::after {
    content: ' | Uptime: 99.9% | Status: ONLINE';
    color: var(--terminal-green-dark);
    font-size: 0.9em;
}

.footer-links {
    margin-top: 1rem;
    display: flex;
    gap: 2rem;
    justify-content: center;
}

.footer-links a {
    color: var(--terminal-green);
    font-family: "Times New Roman", Times, serif;
}

.footer-links a::before {
    content: '[ ';
}

.footer-links a::after {
    content: ' ]';
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-image {
        order: -1;
        justify-content: center;
        flex-wrap: wrap;
    }

    .hero-image .main-photo {
        max-width: 280px;
    }

    .hero-image .side-photo {
        max-width: 150px;
        width: 150px;
    }

    .hero-content {
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
        flex-direction: column;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .greeting {
        font-size: 1.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .carousel-slide img {
        height: 300px;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        position: relative;
        top: 0;
        margin-bottom: 2rem;
    }

    .skills-categories {
        grid-template-columns: 1fr;
        /* 移动端单列 */
    }

    .student-preview {
        grid-template-columns: 1fr;
    }

    .preview-grid {
        grid-template-columns: 1fr;
    }

    .portfolio-grid {
        grid-template-columns: 1fr;
    }

    .chat-messages {
        height: 400px;
    }

    .message-content {
        max-width: 85%;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-image img {
        max-width: 220px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .quick-questions {
        flex-direction: column;
    }

    .quick-question {
        width: 100%;
    }

    .chat-input-wrapper {
        flex-direction: column;
        align-items: stretch;
    }

    .send-btn {
        width: 100%;
    }
}

/* =========================================
   浅色模式极简去边框覆盖 (Minimalist Borderless Overrides)
   ========================================= */
[data-theme="light"] .memory-card,
[data-theme="light"] .memory-stats,
[data-theme="light"] .chat-container,
[data-theme="light"] .ai-chat,
[data-theme="light"] .portfolio-details,
[data-theme="light"] .project-links,
[data-theme="light"] .footer,
[data-theme="light"] .contact-item,
[data-theme="light"] .chat-input-container {
    border: none !important;
    box-shadow: none !important;
}

/* 浅色模式下预览卡片样式修复 */
[data-theme="light"] .preview-item {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: all 0.3s ease;
}

[data-theme="light"] .preview-item:hover {
    background: var(--bg-tertiary) !important;
    border-color: var(--accent-color) !important;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08) !important;
    transform: translateY(-2px);
}

[data-theme="light"] .preview-item i {
    color: var(--text-primary) !important;
    text-shadow: none !important;
}

[data-theme="light"] .preview-item span {
    color: var(--text-secondary);
    font-family: var(--font-sans);
}

[data-theme="light"] .preview-item::before {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* 按钮和输入框改为极细淡边框 */
[data-theme="light"] .explore-btn,
[data-theme="light"] .project-link,
[data-theme="light"] .quick-question,
[data-theme="light"] .control-btn,
[data-theme="light"] .chat-input,
[data-theme="light"] .send-btn,
[data-theme="light"] .copy-btn,
[data-theme="light"] .contact-button,
[data-theme="light"] .subscribe-form input,
[data-theme="light"] .portfolio-tags span {
    border: 1px solid var(--border-color) !important;
    background: transparent;
    color: var(--text-primary);
}

/* 悬停状态稍微加深 */
[data-theme="light"] .explore-btn:hover,
[data-theme="light"] .project-link:hover,
[data-theme="light"] .quick-question:hover,
[data-theme="light"] .control-btn:hover,
[data-theme="light"] .send-btn:hover,
[data-theme="light"] .copy-btn:hover,
[data-theme="light"] .contact-button:hover,
[data-theme="light"] .portfolio-tags span:hover {
    background: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color) !important;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1) !important;
}

/* 消息气泡去边框 */
[data-theme="light"] .message-text,
[data-theme="light"] .user-message .message-text,
[data-theme="light"] .typing-dots {
    border: none !important;
    background-color: #f0f0f0 !important;
    color: var(--text-primary);
}

[data-theme="light"] .user-message .message-text {
    background-color: #e6e6e6 !important;
}

/* 移除页脚装饰线 */
[data-theme="light"] .footer::before {
    display: none;
}

/* 状态徽章优化 */
[data-theme="light"] .status-badge {
    border-width: 1px;
}

/* =========================================
   静态精选集区域 (Static Gallery)
   ========================================= */
.static-gallery-section {
    padding: 6rem 0;
    background-color: #e6f2ff;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.gallery-card {
    position: relative;
    border: 2px solid var(--terminal-green);
    background: rgba(0, 0, 0, 0.3);
    overflow: hidden;
    transition: all 0.3s ease;
}

.gallery-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.gallery-image-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease, filter 0.5s ease;
    filter: contrast(1.2) brightness(1.05) saturate(1.1);
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    transform: translateZ(0);
    /* 增强清晰度 */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.gallery-card:hover .gallery-image-wrapper img {
    transform: scale(1.05) translateZ(0);
    filter: contrast(1.3) brightness(1.1) saturate(1.2);
}

.gallery-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-card:hover .gallery-overlay {
    opacity: 1;
}

.gallery-overlay span {
    color: var(--terminal-green-bright);
    font-family: "Times New Roman", Times, serif;
    font-weight: bold;
    border: 1px solid var(--terminal-green);
    padding: 0.5rem 1rem;
    background: rgba(0, 0, 0, 0.8);
}

.gallery-info {
    padding: 1.5rem;
    text-align: center;
    border-top: 1px solid var(--terminal-green-dark);
}

.gallery-info h3 {
    color: var(--terminal-green-bright);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-family: "Times New Roman", Times, serif;
}

.gallery-info p {
    color: var(--terminal-green);
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Light Mode Overrides for Gallery */
[data-theme="light"] .static-gallery-section {
    border-top: none;
    background: var(--bg-secondary);
}

[data-theme="light"] .gallery-card {
    border: none !important;
    background: transparent;
    box-shadow: none !important;
}

[data-theme="light"] .gallery-image-wrapper {
    border-radius: 4px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    /* 图片本身加阴影 */
}

[data-theme="light"] .gallery-image-wrapper img {
    filter: none;
}

[data-theme="light"] .gallery-info {
    border-top: none;
    padding: 1.5rem 0.5rem;
}

[data-theme="light"] .gallery-info h3 {
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-weight: 600;
}

[data-theme="light"] .gallery-info p {
    color: var(--text-secondary);
    font-family: var(--font-sans);
}

[data-theme="light"] .gallery-overlay {
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(4px);
}

[data-theme="light"] .gallery-overlay span {
    color: #000;
    background: #fff;
    border: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    font-family: var(--font-sans);
    font-weight: 600;
    letter-spacing: 1px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        padding: 0 20px;
    }
}

/* =========================================
   语言切换开关 (Language Toggle)
   ========================================= */
.about-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.lang-toggle {
    background: transparent;
    border: 1px solid var(--terminal-green);
    padding: 0.4rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: "Times New Roman", Times, serif;
    font-size: 0.85rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.lang-option {
    color: var(--terminal-green);
    opacity: 0.5;
    transition: all 0.3s ease;
    cursor: pointer;
}

.lang-option.active {
    opacity: 1;
    font-weight: bold;
    color: var(--terminal-green-bright);
}

.lang-divider {
    color: var(--terminal-green-dim);
    opacity: 0.3;
}

.lang-toggle:hover {
    border-color: var(--terminal-green-bright);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.3);
}

/* 淡入淡出动画 - 简化方案 */
/* 淡入淡出动画 - 最终修复版 */
.about-text {
    position: relative;
    /* 防止高度塌陷导致页面跳动，设置个最小高度 */
    min-height: 200px;
}

.text-zh,
.text-en {
    transition: opacity 0.4s ease;
    opacity: 1;
}

/* 默认状态 - 段落和技能标签都适用 */
.text-en {
    display: none;
    opacity: 0;
}

/* 分类标题的语言切换 */
.category-title.text-en {
    display: none;
    opacity: 0;
}

.category-title.text-zh {
    display: flex;
    opacity: 1;
}

/* 技能标签的语言切换 */
.skill-tag.text-en {
    display: none;
    opacity: 0;
}

.skill-tag.text-zh {
    display: inline-block;
    opacity: 1;
}

/* 动画状态类 - 增加权重确保生效 */
.about-text .text-fade-out,
.skill-tag.text-fade-out,
.category-title.text-fade-out,
.self-evaluation.text-fade-out {
    display: none !important;
    opacity: 0 !important;
}

.about-text .text-fade-in,
.skill-tag.text-fade-in,
.category-title.text-fade-in,
.self-evaluation.text-fade-in {
    opacity: 1 !important;
}

.about-text p.text-fade-in {
    display: block !important;
}

.skill-tag.text-fade-in {
    display: inline-block !important;
}

.category-title.text-fade-in {
    display: flex !important;
}

.self-evaluation.text-fade-in {
    display: block !important;
}

/* Light Mode Overrides */
[data-theme="light"] .lang-toggle {
    border: 1px solid var(--border-color);
}

[data-theme="light"] .lang-option {
    color: var(--text-secondary);
}

[data-theme="light"] .lang-option.active {
    color: var(--text-primary);
}

[data-theme="light"] .lang-divider {
    color: var(--text-secondary);
    opacity: 0.5;
}

/* =========================================
   Mobile & Tablet Optimization
   ========================================= */
@media (max-width: 768px) {

    /* ========== Hero Section ========== */
    .hero {
        padding: 6rem 20px 3rem;
        min-height: auto;
        /* Allow flexible height on mobile */
    }

    .hero-container {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

    /* Reorder: Image top, Content bottom */
    .hero-image {
        order: -1;
        justify-content: center;
        margin-bottom: 2rem;
    }

    .hero-image img {
        max-width: 280px;
        /* Reduce image size */
    }

    .hero-content {
        text-align: center;
    }

    .hero-title {
        font-size: 2.2rem;
        /* Smaller title */
    }

    .hero-cta {
        justify-content: center;
    }

    /* ========== Carousel ========== */
    .carousel-section {
        padding: 2rem 0;
    }

    .carousel-slide img {
        height: 250px;
        /* Smaller height for mobile */
    }

    .slide-caption {
        padding: 1rem;
        font-size: 1rem;
    }

    /* ========== About Section ========== */
    .about {
        padding: 4rem 0;
    }

    .about-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image {
        position: static;
        /* Remove sticky on mobile */
        max-width: 100%;
        margin: 0 auto;
    }

    .about-image img {
        max-width: 100%;
    }

    .about-text h3 {
        text-align: center;
    }

    /* Skills Matrix - Stack vertically */
    .skills-matrix {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    /* ========== Student Life & Portfolio Grids ========== */
    .student-life,
    .portfolio {
        padding: 4rem 0;
    }

    /* 学术旅行时间线响应式 */
    .academic-timeline {
        padding-left: 40px;
    }

    .timeline-node::before {
        left: -30px;
        width: 12px;
        height: 12px;
    }

    .timeline-connector {
        left: -30px;
        width: 30px;
    }

    .academic-timeline::before {
        left: 10px;
    }

    .preview-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
        /* Stack items */
        gap: 1.5rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .section-subtitle {
        font-size: 0.9rem;
    }

    /* ========== Footer ========== */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    .contact-item {
        justify-content: center;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .gallery-overlay span {
        font-size: 0.8rem;
        padding: 0.5rem 1rem;
    }
}