/* ========== 学生时代页面样式 ========== */

/* ========== 导航栏样式 ========== */
.navbar {
    background-color: var(--navbar-bg);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: transform 0.3s ease, opacity 0.3s ease, background-color 0.3s ease;
}

.navbar .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand a {
    color: var(--terminal-green);
    text-decoration: none;
    font-size: 1.5rem;
    font-family: 'Fira Code', monospace;
    font-weight: bold;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    margin: 0;
    padding: 0;
}

.nav-menu li {
    margin: 0;
}

.nav-menu a {
    color: var(--terminal-green-dim);
    text-decoration: none;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--terminal-green-bright);
}

.nav-menu a.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--terminal-green);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.theme-toggle,
.mobile-menu-toggle {
    background: transparent;
    border: 1px solid var(--terminal-green);
    color: var(--terminal-green);
    padding: 0.5rem 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.theme-toggle i,
.mobile-menu-toggle i {
    font-size: 1rem;
}

.theme-toggle:hover,
.mobile-menu-toggle:hover {
    background: var(--terminal-green);
    color: var(--bg-primary);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.mobile-menu-toggle {
    display: none;
}

/* 页面标题 */
.student-header {
    padding: 10rem 20px 4rem;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.student-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    /* 扫描线已永久移除 — 背景横纹效果不再需要 */
    pointer-events: none;
}

/* 页面标题已去除终端特殊前缀与发光 */
.page-title {
    font-size: 3rem;
    color: var(--terminal-green-bright);
    font-family: 'Courier New', monospace;
    margin-bottom: 1rem;
}


.command-prompt {
    color: var(--terminal-green);
    opacity: 0.7;
}

.page-subtitle {
    color: var(--terminal-green);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    opacity: 0.8;
}

/* 时间线导航 - 目录式固定导航 */
.timeline-nav {
    background: var(--bg-primary);
    padding: 1rem 20px;
    position: sticky;
    top: 60px;
    /* 在主导航栏下方 */
    z-index: 99;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(var(--glow-rgb), 0.2);
    transition: top 0.3s ease;
}

.timeline-nav .container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.timeline-btn {
    background: transparent;
    border: 2px solid var(--terminal-green-dark);
    color: var(--terminal-green);
    padding: 0.6rem 1.2rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    text-decoration: none;
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.timeline-btn:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.1);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.5);
    color: var(--terminal-green-bright);
}

.timeline-btn.active {
    background: var(--terminal-green);
    color: var(--terminal-bg);
    border-color: var(--terminal-green);
    box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.8);
}

/* 锚点定位偏移（避免被固定导航遮挡） */
.university-section {
    scroll-margin-top: 140px;
}

/* 主内容区域 */
.student-main {
    padding: 4rem 20px;
    background: var(--bg-secondary);
}

/* ========== 大学时光独立板块 ========== */
.university-section {
    max-width: 1400px;
    margin: 0 auto 6rem auto;
    padding: 3rem;
    background: transparent;
    position: relative;
    overflow: hidden;
}

.university-header {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
}

.header-decoration {
    width: 100px;
    height: 100px;
    background: rgba(var(--glow-rgb), 0.1);
    border: 3px solid var(--terminal-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 0 30px rgba(var(--glow-rgb), 0.3);
    animation: pulseGlow 3s ease-in-out infinite;
}

@keyframes pulseGlow {

    0%,
    100% {
        box-shadow: 0 0 30px rgba(var(--glow-rgb), 0.3);
        transform: scale(1);
    }

    50% {
        box-shadow: 0 0 50px rgba(var(--glow-rgb), 0.5);
        transform: scale(1.05);
    }
}

.header-decoration i {
    font-size: 3rem;
    color: var(--terminal-green-bright);
}

.header-content {
    flex: 1;
}

.university-title {
    font-family: 'Fira Code', monospace;
    font-size: 3rem;
    color: var(--terminal-green-bright);
    margin: 0 0 0.5rem 0;
    text-transform: uppercase;
    letter-spacing: 3px;
    text-shadow: 0 0 20px rgba(var(--glow-rgb), 0.5);
}

.university-subtitle {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    color: var(--terminal-green);
    margin: 0;
    letter-spacing: 2px;
    opacity: 0.8;
}

.header-line {
    width: 200px;
    height: 2px;
    background: var(--terminal-green);
    margin-top: 1rem;
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.university-section .memory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.university-section .memory-box {
    background: rgba(var(--glow-rgb), 0.03);
    border: 1px solid rgba(var(--glow-rgb), 0.2);
    border-left: 4px solid var(--terminal-green);
    padding: 2rem;
    transition: transform 0.3s ease,
        background 0.3s ease,
        border-color 0.3s ease,
        box-shadow 0.3s ease;
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.university-section .memory-box:nth-child(1) {
    animation-delay: 0.1s;
}

.university-section .memory-box:nth-child(2) {
    animation-delay: 0.2s;
}

.university-section .memory-box:nth-child(3) {
    animation-delay: 0.3s;
}

.university-section .memory-box:nth-child(4) {
    animation-delay: 0.4s;
}

.university-section .memory-box:nth-child(5) {
    animation-delay: 0.5s;
}

.university-section .memory-box:nth-child(6) {
    animation-delay: 0.6s;
}

.university-section .memory-box:nth-child(7) {
    animation-delay: 0.7s;
}

.university-section .memory-box:nth-child(8) {
    animation-delay: 0.8s;
}

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

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

.university-section .memory-box:hover {
    border-left-color: var(--terminal-green-bright);
    box-shadow: -5px 0 15px rgba(var(--glow-rgb), 0.15);
    transform: translateY(-4px);
    background: rgba(var(--glow-rgb), 0.08);
}

/* 时间线 */
.timeline {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg,
            var(--terminal-green-bright) 0%,
            var(--terminal-green) 50%,
            var(--terminal-green-dark) 100%);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

/* ========== 经典中线交替时间线布局（带照片） ========== */
.timeline-item {
    margin-bottom: 4rem;
    position: relative;
    opacity: 0;
    animation: fadeInTimeline 0.8s ease forwards;
    display: flex;
    align-items: flex-start;
    gap: 0;
}

/* 右侧项目 (大学、初中) - 左边照片，右边内容 */
.timeline-item:nth-child(odd) {
    justify-content: space-between;
}

.timeline-item:nth-child(odd) .timeline-marker {
    order: 2;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item:nth-child(odd) .timeline-photos {
    order: 1;
    width: 42%;
    margin-right: auto;
}

.timeline-item:nth-child(odd) .timeline-content {
    order: 3;
    width: 42%;
    margin-left: auto;
    text-align: left;
}

.timeline-item:nth-child(odd) .timeline-content::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50px;
    width: 50px;
    height: 2px;
    background: var(--terminal-green-dark);
}

.timeline-item:nth-child(odd) .timeline-header {
    text-align: left;
}

/* 左侧项目 (高中、小学) - 左边内容，右边照片 */
.timeline-item:nth-child(even) {
    justify-content: space-between;
}

.timeline-item:nth-child(even) .timeline-marker {
    order: 2;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item:nth-child(even) .timeline-photos {
    order: 3;
    width: 42%;
    margin-left: auto;
}

.timeline-item:nth-child(even) .timeline-content {
    order: 1;
    width: 42%;
    margin-right: auto;
    text-align: left;
}

.timeline-item:nth-child(even) .timeline-content::before {
    content: '';
    position: absolute;
    right: -20px;
    top: 50px;
    width: 50px;
    height: 2px;
    background: var(--terminal-green-dark);
}

.timeline-item:nth-child(even) .timeline-header {
    text-align: right;
}

/* 保持记忆网格内的卡片左对齐 */
.memory-grid {
    text-align: left;
}

.timeline-item:nth-child(even) .memory-grid {
    text-align: left;
}

@keyframes fadeInTimeline {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

.timeline-item:nth-child(1) {
    animation-delay: 0.2s;
}

.timeline-item:nth-child(2) {
    animation-delay: 0.4s;
}

.timeline-item:nth-child(3) {
    animation-delay: 0.6s;
}

.timeline-item:nth-child(4) {
    animation-delay: 0.8s;
}

.timeline-marker {
    flex-shrink: 0;
    display: flex;
    align-items: flex-start;
    padding-top: 2rem;
    z-index: 20;
}

.marker-icon {
    width: 100px;
    height: 100px;
    background: rgba(var(--glow-rgb), 0.1);
    border: 4px solid var(--terminal-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    color: var(--terminal-green-bright);
    box-shadow:
        0 0 20px rgba(var(--glow-rgb), 0.6),
        inset 0 0 20px rgba(var(--glow-rgb), 0.1);
    position: relative;
    z-index: 10;
    animation: pulse 3s ease-in-out infinite;
    transition: all 0.3s ease;
}

.marker-icon:hover {
    transform: scale(1.1);
    box-shadow:
        0 0 30px rgba(var(--glow-rgb), 0.8),
        inset 0 0 30px rgba(var(--glow-rgb), 0.2);
}

/* 统一的脉冲动画 - 只使用绿色主题 */
@keyframes pulse {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(var(--glow-rgb), 0.6), inset 0 0 20px rgba(var(--glow-rgb), 0.1);
        border-color: var(--terminal-green);
    }

    50% {
        box-shadow: 0 0 40px rgba(var(--glow-rgb), 1), inset 0 0 30px rgba(var(--glow-rgb), 0.3);
        border-color: var(--terminal-green-bright);
    }
}

.timeline-content {
    background: rgba(var(--glow-rgb), 0.03);
    border: 1px solid rgba(var(--glow-rgb), 0.2);
    padding: 2rem;
    position: relative;
    transition: all 0.4s ease;
    backdrop-filter: blur(5px);
}

.timeline-content:hover {
    background: rgba(var(--glow-rgb), 0.08);
    border-color: var(--terminal-green);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(var(--glow-rgb), 0.15);
}

.timeline-content:hover::before {
    background: var(--terminal-green);
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.5);
}

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--terminal-green-dark);
}

/* 右侧项目的标题栏 */
.timeline-item:nth-child(odd) .timeline-header {
    flex-direction: row;
}

/* 左侧项目的标题栏 */
.timeline-item:nth-child(even) .timeline-header {
    flex-direction: row-reverse;
}

.timeline-header h2 {
    color: var(--terminal-green-bright);
    font-family: 'Courier New', monospace;
    font-size: 2rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.timeline-date {
    color: var(--terminal-green);
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    background: rgba(var(--glow-rgb), 0.05);
    border: 1px solid rgba(var(--glow-rgb), 0.2);
}

.timeline-date::before {
    content: '[ ';
}

.timeline-date::after {
    content: ' ]';
}

/* 记忆网格 */
.memory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    text-align: left;
    /* 确保所有卡片内容左对齐 */
}

.memory-box {
    background: rgba(var(--glow-rgb), 0.03);
    border: 1px solid rgba(var(--glow-rgb), 0.2);
    padding: 1.5rem;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: left;
    /* 确保卡片内容左对齐 */
    will-change: transform;
}

.memory-box:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.06);
    transform: translateY(-3px);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.3);
    opacity: 1;
}

.memory-box:hover h3 {
    color: var(--terminal-green-bright);
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
}

.memory-box:hover i {
    color: var(--terminal-green-bright);
    filter: drop-shadow(0 0 8px rgba(var(--glow-rgb), 0.8));
}

.memory-box:hover .memory-tags span {
    background: rgba(var(--glow-rgb), 0.15);
    border-color: var(--terminal-green-bright);
    color: var(--terminal-green-bright);
}

.memory-box i {
    font-size: 2.5rem;
    color: var(--terminal-green-bright);
    display: block;
    margin-bottom: 1rem;
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.6);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.memory-box h3 {
    color: var(--terminal-green-bright);
    font-family: 'Courier New', monospace;
    font-size: 1.2rem;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.memory-box p {
    color: var(--terminal-green);
    font-family: 'Courier New', monospace;
    line-height: 1.6;
    margin-bottom: 1rem;
    opacity: 0.9;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.memory-tags span {
    background: transparent;
    border: 1px solid var(--terminal-green);
    color: var(--terminal-green);
    padding: 0.25rem 0.75rem;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.memory-tags span:hover {
    background: var(--terminal-green);
    color: var(--terminal-bg);
}

/* 统计部分 */
.stats-section {
    margin-top: 6rem;
    padding-top: 4rem;
}

.stats-section .section-title {
    text-align: center;
    font-size: 2rem;
    color: var(--terminal-green-bright);
    font-family: 'Courier New', monospace;
    margin-bottom: 3rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.stat-box {
    background: rgba(var(--glow-rgb), 0.05);
    border: 3px solid var(--terminal-green);
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-box:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(var(--glow-rgb), 0.6);
}

.stat-box i {
    font-size: 3rem;
    color: var(--terminal-green-bright);
    margin-bottom: 1rem;
    display: block;
}

.stat-number {
    font-size: 3.5rem;
    color: var(--terminal-green-bright);
    font-family: 'Courier New', monospace;
    font-weight: bold;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 10px rgba(var(--glow-rgb), 0.8);
}

.stat-label {
    color: var(--terminal-green);
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    text-transform: uppercase;
}

/* 页脚 */
.student-footer {
    background: var(--bg-primary);
    padding: 3rem 20px;
    text-align: center;
}

.student-footer p {
    color: var(--terminal-green);
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    margin: 0.5rem 0;
}

.footer-note {
    opacity: 0.7;
    font-size: 0.9rem !important;
    animation: blink 1.5s infinite;
}

@keyframes blink {

    0%,
    50% {
        opacity: 0.7;
    }

    51%,
    100% {
        opacity: 0.3;
    }
}

/* 响应式 */
@media (max-width: 768px) {

    /* 大学板块移动端优化 */
    .university-section {
        padding: 2rem 1.5rem;
        margin-bottom: 4rem;
    }

    .university-header {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .header-decoration {
        width: 80px;
        height: 80px;
    }

    .header-decoration i {
        font-size: 2.5rem;
    }

    .university-title {
        font-size: 2rem;
        letter-spacing: 2px;
    }

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

    .header-line {
        margin: 1rem auto 0;
    }

    .university-section .memory-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .university-section .memory-box:hover {
        transform: translateY(-3px);
        box-shadow: 0 8px 20px rgba(var(--glow-rgb), 0.15);
    }

    /* 导航栏移动端样式 */
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: rgba(0, 0, 0, 0.98);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        transition: left 0.3s ease;
        border-top: 2px solid var(--terminal-green);
    }

    .nav-menu.active {
        left: 0;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .timeline::before {
        left: 30px;
        width: 3px;
    }

    /* 移动端时间线布局：统一为垂直布局 */
    .timeline-item {
        padding-left: 80px;
        margin-bottom: 3rem;
    }

    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        display: block;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-marker,
    .timeline-item:nth-child(even) .timeline-marker {
        position: absolute;
        left: 0;
        transform: none;
        margin: 0;
    }

    .timeline-item:nth-child(odd) .timeline-photos,
    .timeline-item:nth-child(even) .timeline-photos {
        width: 100%;
        margin: 0 0 1.5rem 0;
    }

    .timeline-item:nth-child(odd) .timeline-content,
    .timeline-item:nth-child(even) .timeline-content {
        width: 100%;
        margin: 0;
        margin-top: 1rem;
        text-align: left;
    }

    .timeline-item:nth-child(odd) .timeline-content::before,
    .timeline-item:nth-child(even) .timeline-content::before {
        display: none;
    }

    .timeline-item:nth-child(odd) .timeline-header,
    .timeline-item:nth-child(even) .timeline-header {
        flex-direction: row;
        text-align: left;
    }

    .timeline-photos-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .marker-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }

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

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

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

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .timeline-btn {
        font-size: 0.85rem;
        padding: 0.5rem 1rem;
    }
}

/* ========== 交互优化 ========== */

/* 回到顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--terminal-green), var(--terminal-green-bright));
    color: var(--bg-primary);
    border: none;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    z-index: 1000;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    box-shadow: 0 4px 15px rgba(var(--glow-rgb), 0.3);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: linear-gradient(135deg, var(--terminal-green-bright), var(--terminal-green));
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 6px 20px rgba(var(--glow-rgb), 0.5);
}

.back-to-top:active {
    transform: translateY(-1px) scale(1.05);
}

/* 时间线进度条 */
.timeline-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: linear-gradient(90deg, var(--terminal-green), var(--terminal-green-bright));
    z-index: 1001;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px rgba(var(--glow-rgb), 0.8);
}

/* 平滑滚动 */
html {
    scroll-behavior: smooth;
}

/* 时间线项目动画增强 */
.timeline-item {
    opacity: 0;
    transform: translateX(-50px);
    animation: slideInFromLeft 0.8s ease forwards;
}

.timeline-item:nth-child(even) {
    transform: translateX(50px);
    animation: slideInFromRight 0.8s ease forwards;
}

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

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

/* 统计卡片动画 */
.stat-box {
    transition: all 0.3s ease;
}

.stat-box:hover {
    transform: translateY(-5px);
    background: rgba(var(--glow-rgb), 0.1);
    border-color: var(--terminal-green-bright);
    box-shadow: 0 10px 25px rgba(var(--glow-rgb), 0.3);
}

.stat-box:hover .stat-number {
    color: var(--terminal-green-bright);
    text-shadow: 0 0 15px rgba(var(--glow-rgb), 0.8);
}

.stat-box:hover i {
    transform: scale(1.2);
    color: var(--terminal-green-bright);
}

/* 移动端优化 */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
}

/* ========== 照片画廊样式 ========== */
.photo-gallery-section {
    padding: 4rem 0;
    background: rgba(var(--glow-rgb), 0.02);
    margin: 4rem 0;
    scroll-margin-top: 140px;
}

.gallery-subtitle {
    text-align: center;
    color: var(--terminal-green-dim);
    font-family: 'Fira Code', monospace;
    font-size: 1.1rem;
    margin-bottom: 3rem;
    font-style: italic;
}

.gallery-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: transparent;
    color: var(--terminal-green-dim);
    border: 2px solid var(--terminal-green-dark);
    padding: 0.75rem 1.5rem;
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-btn:hover {
    border-color: var(--terminal-green);
    color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.1);
    transform: translateY(-2px);
}

.filter-btn.active {
    border-color: var(--terminal-green-bright);
    color: var(--terminal-green-bright);
    background: rgba(var(--glow-rgb), 0.15);
    box-shadow: 0 0 15px rgba(var(--glow-rgb), 0.3);
}

.filter-btn i {
    font-size: 0.9rem;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* 针对横版照片的 2x2 布局 */
.photo-grid.friends-layout {
    grid-template-columns: 1fr 1fr;
}

.photo-grid.friends-layout .photo-item[data-category="friends"] img {
    height: 350px;
}

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

    .photo-grid.friends-layout .photo-item[data-category="friends"] img {
        height: 250px;
    }
}

.photo-item {
    background: transparent;
    border: 1px solid rgba(var(--glow-rgb), 0.2);
    transition: all 0.4s ease;
    cursor: pointer;
    overflow: hidden;
    opacity: 1;
    transform: scale(1);
}

/* 图片真实色彩，不加任何滤镜 */
.photo-item img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    display: block;
    filter: none;
}

.photo-item:hover {
    border-color: var(--terminal-green);
    transform: translateY(-5px) scale(1.02);
    box-shadow: 0 10px 30px rgba(var(--glow-rgb), 0.2);
}

.photo-placeholder {
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(var(--glow-rgb), 0.03);
    color: var(--terminal-green-dim);
    font-family: 'Fira Code', monospace;
    position: relative;
    overflow: hidden;
}

.photo-placeholder::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(var(--glow-rgb), 0.1), transparent);
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% {
        left: -100%;
    }

    100% {
        left: 100%;
    }
}

.photo-placeholder i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #444;
    /* 改为中性深灰，不再默认发绿 */
}

.photo-placeholder span {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.photo-placeholder p {
    font-size: 0.8rem;
    opacity: 0.7;
    margin: 0;
}

.photo-info {
    padding: 1rem;
    border-top: 1px solid var(--terminal-green-dark);
}

.photo-info h4 {
    color: var(--terminal-green);
    font-family: 'Fira Code', monospace;
    font-size: 1rem;
    margin: 0 0 0.5rem 0;
}

.photo-date {
    color: var(--terminal-green-dim);
    font-family: 'Fira Code', monospace;
    font-size: 0.8rem;
}

.upload-hint {
    text-align: center;
    color: var(--terminal-green-dim);
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    padding: 1.5rem;
    background: rgba(var(--glow-rgb), 0.05);
    border: 1px dashed var(--terminal-green-dark);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.upload-hint i {
    color: var(--terminal-green);
}

/* 照片筛选动画 */
.photo-item.hidden {
    opacity: 0;
    transform: scale(0.8);
    pointer-events: none;
}

/* 移动端优化 */
@media (max-width: 768px) {
    .gallery-filters {
        gap: 0.5rem;
    }

    .filter-btn {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }

    .photo-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
        gap: 1.5rem;
    }

    .photo-placeholder {
        height: 180px;
    }

    .photo-placeholder i {
        font-size: 2.5rem;
    }
}

/* =========================================
   500px 画廊引导 CTA 按钮样式
   ========================================= */
.gallery-cta-container {
    display: flex;
    justify-content: center;
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 1px dashed rgba(var(--glow-rgb), 0.2);
}

.external-gallery-btn {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.2rem 2.5rem;
    background: rgba(var(--glow-rgb), 0.05);
    border: 2px solid var(--terminal-green-dark);
    border-radius: 8px;
    text-decoration: none;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
}

.external-gallery-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(var(--glow-rgb), 0.1), transparent);
    transition: left 0.6s ease;
}

.external-gallery-btn:hover {
    border-color: var(--terminal-green);
    background: rgba(var(--glow-rgb), 0.1);
    box-shadow: 0 0 30px rgba(var(--glow-rgb), 0.3), inset 0 0 10px rgba(var(--glow-rgb), 0.1);
    transform: translateY(-5px);
}

.external-gallery-btn:hover::before {
    left: 100%;
}

.external-gallery-btn .btn-icon {
    font-size: 2.2rem;
    color: var(--terminal-green-bright);
    filter: drop-shadow(0 0 5px rgba(var(--glow-rgb), 0.5));
}

.external-gallery-btn .btn-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.external-gallery-btn .btn-title {
    font-family: 'Fira Code', var(--font-mono);
    font-size: 1.4rem;
    font-weight: bold;
    color: var(--terminal-green-bright);
    text-shadow: 0 0 8px rgba(var(--glow-rgb), 0.4);
    letter-spacing: 1px;
}

.external-gallery-btn .btn-desc {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: var(--terminal-green-dim);
    margin-top: 0.3rem;
}

.external-gallery-btn .btn-arrow {
    font-size: 1.2rem;
    color: var(--terminal-green);
    transition: transform 0.3s ease;
}

.external-gallery-btn:hover .btn-arrow {
    transform: translateX(10px);
}


/* =========================================
   浅色模式极简美学 (Light Mode Minimalist Aesthetic)
   设计原则：极简主义、排版驱动、无边框、低饱和度、微交互
   ========================================= */

/* === 基础重置 === */
[data-theme="light"] .student-header,
[data-theme="light"] .student-main,
[data-theme="light"] .timeline-nav,
[data-theme="light"] .university-section,
[data-theme="light"] .photo-gallery-section,
[data-theme="light"] .stats-section,
[data-theme="light"] .student-footer {
    background: var(--bg-primary) !important;
}

/* === 页面标题区域 - 排版驱动 === */
[data-theme="light"] .student-header {
    padding: 12rem 20px 6rem;
}

[data-theme="light"] .student-header::before {
    display: none;
    /* 移除扫描线效果 */
}

[data-theme="light"] .main-title {
    font-family: var(--font-sans);
    font-size: 3.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #1a1a1a;
    text-shadow: none;
    animation: none;
}

[data-theme="light"] .sub-title {
    font-family: var(--font-sans);
    font-size: 1.2rem;
    font-weight: 400;
    color: #666;
    letter-spacing: 0;
}

[data-theme="light"] .sub-title::before {
    display: none;
    /* 移除 // 装饰 */
}

/* === 时间线导航 - 极简按钮 === */
[data-theme="light"] .timeline-nav {
    padding: 0.8rem 20px;
    backdrop-filter: blur(20px);
    background: rgba(255, 255, 255, 0.95) !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

[data-theme="light"] .timeline-btn {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    color: #666;
    background: transparent;
    border: none !important;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s ease;
}

[data-theme="light"] .timeline-btn:hover {
    color: #1a1a1a;
    background: rgba(0, 0, 0, 0.04);
    box-shadow: none;
}

[data-theme="light"] .timeline-btn.active {
    color: #1a1a1a;
    background: rgba(0, 0, 0, 0.06);
    box-shadow: none;
}

/* === 大学板块标题 - 简约大气 === */
[data-theme="light"] .header-decoration {
    width: 80px;
    height: 80px;
    background: #f5f5f5;
    border: none !important;
    box-shadow: none;
    animation: none;
}

[data-theme="light"] .header-decoration i {
    font-size: 2.2rem;
    color: #1a1a1a;
}

[data-theme="light"] .university-title {
    font-family: var(--font-sans);
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    text-shadow: none;
    letter-spacing: -0.01em;
    text-transform: none;
}

[data-theme="light"] .university-subtitle {
    font-family: var(--font-sans);
    font-size: 1rem;
    color: #888;
    letter-spacing: 0;
}

[data-theme="light"] .header-line {
    display: none;
    /* 移除装饰线 */
}

/* === 记忆卡片 - 无边框美学 === */
[data-theme="light"] .memory-box,
[data-theme="light"] .university-section .memory-box {
    background: #fff !important;
    border: none !important;
    border-left: none !important;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04) !important;
    padding: 2rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

[data-theme="light"] .memory-box:hover,
[data-theme="light"] .university-section .memory-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08) !important;
}

[data-theme="light"] .memory-box i {
    font-size: 2rem;
    color: #1a1a1a;
    text-shadow: none;
    filter: none;
    margin-bottom: 1.2rem;
}

[data-theme="light"] .memory-box h3 {
    font-family: var(--font-sans);
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
    text-transform: none;
    letter-spacing: 0;
}

[data-theme="light"] .memory-box p {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    color: #666;
    line-height: 1.6;
}

[data-theme="light"] .memory-box:hover h3,
[data-theme="light"] .memory-box:hover i {
    color: #1a1a1a;
    text-shadow: none;
    filter: none;
}

/* 标签样式优化 */
[data-theme="light"] .memory-tags span {
    font-family: var(--font-sans);
    font-size: 0.8rem;
    color: #888;
    background: #f5f5f5;
    border: none !important;
    border-radius: 4px;
    padding: 0.3rem 0.8rem;
}

[data-theme="light"] .memory-box:hover .memory-tags span {
    background: #f0f0f0;
    color: #666;
    border-color: transparent !important;
}

/* === 时间线 - 简约线条 === */
[data-theme="light"] .timeline::before {
    background: #eee !important;
    width: 1px;
}

[data-theme="light"] .timeline-marker {
    background: transparent;
}

[data-theme="light"] .marker-icon {
    width: 60px;
    height: 60px;
    background: #fff;
    border: 1px solid #eee !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    animation: none;
}

[data-theme="light"] .marker-icon i {
    font-size: 1.5rem;
    color: #1a1a1a;
}

[data-theme="light"] .timeline-content {
    background: #fff !important;
    border: none !important;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    backdrop-filter: none;
}

[data-theme="light"] .timeline-content:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .timeline-header {
    border-bottom: 1px solid #f0f0f0 !important;
}

[data-theme="light"] .timeline-header h2 {
    font-family: var(--font-sans);
    font-size: 1.5rem;
    font-weight: 600;
    color: #1a1a1a;
}

[data-theme="light"] .timeline-date {
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    color: #888;
    background: transparent;
    border: none !important;
    padding: 0;
}

[data-theme="light"] .timeline-date::before,
[data-theme="light"] .timeline-date::after {
    display: none;
}

/* === 照片画廊 - 干净留白 === */
[data-theme="light"] .photo-gallery-section {
    background: #fafafa !important;
    margin: 0;
    padding: 5rem 0;
}

[data-theme="light"] .gallery-filters {
    gap: 0.5rem;
}

[data-theme="light"] .filter-btn {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    font-weight: 500;
    color: #888;
    background: transparent;
    border: none !important;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.2s ease;
}

[data-theme="light"] .filter-btn:hover {
    color: #1a1a1a;
    background: rgba(0, 0, 0, 0.04);
}

[data-theme="light"] .filter-btn.active {
    color: #1a1a1a;
    background: rgba(0, 0, 0, 0.06);
    border: none !important;
}

[data-theme="light"] .photo-item {
    background: #fff !important;
    border: none !important;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

[data-theme="light"] .photo-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .photo-placeholder {
    background: #f8f8f8;
    color: #ccc;
}

[data-theme="light"] .photo-info {
    padding: 1.2rem;
    border-top: none;
}

[data-theme="light"] .photo-info h4 {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a1a;
}

[data-theme="light"] .photo-info p {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    color: #888;
}

/* === 统计区域 - 数字突出 === */
[data-theme="light"] .stats-section {
    padding: 5rem 0;
}

[data-theme="light"] .stats-section .section-title {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 600;
    color: #1a1a1a;
}

[data-theme="light"] .stat-box {
    background: #fff;
    border: none !important;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    padding: 2rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

[data-theme="light"] .stat-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .stat-number {
    font-family: var(--font-sans);
    font-size: 3rem;
    font-weight: 700;
    color: #1a1a1a;
    text-shadow: none;
}

[data-theme="light"] .stat-label {
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    color: #888;
    text-transform: none;
}

/* === 页脚 - 简约收尾 === */
[data-theme="light"] .student-footer {
    padding: 4rem 20px;
    background: #fafafa !important;
}

[data-theme="light"] .student-footer p {
    font-family: var(--font-sans);
    color: #888;
}

[data-theme="light"] .footer-note {
    animation: none;
}

/* === Section 标题统一样式 === */
[data-theme="light"] .section-title {
    font-family: var(--font-sans);
    font-size: 1.8rem;
    font-weight: 600;
    color: #1a1a1a;
    text-shadow: none;
    animation: none;
}

/* === 移除所有终端风格装饰 === */
[data-theme="light"] *::before,
[data-theme="light"] *::after {
    text-shadow: none !important;
}

[data-theme="light"] .glitch-text {
    animation: none;
}

/* === 极简浅色模式：彻底移除终端残余 === */

/* 1. 强制关闭所有扫描线覆盖层 */
html[data-theme="light"] .student-header::before,
html[data-theme="light"] .student-content::before,
html[data-theme="light"] section::before,
html[data-theme="light"] .photo-placeholder::before {
    background: none !important;
    display: none !important;
}

/* 2. 重置背景色与渐变 */
html[data-theme="light"] .student-header {
    background: #FFFFFF !important;
    border-bottom: 1px solid #f0f0f0;
    padding-top: 8rem;
    /* 稍微压缩顶部间距 */
}

/* 3. 页面大标题：从霓虹绿改为纯正深灰 */
html[data-theme="light"] .page-title {
    color: #1a1a1a !important;
    text-shadow: none !important;
    animation: none !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
    font-weight: 800;
    letter-spacing: -1px;
}

html[data-theme="light"] .page-subtitle {
    color: #666 !important;
    text-shadow: none !important;
    animation: none !important;
    font-family: inherit;
    opacity: 0.8;
}

/* 4. 关键：修正相机等画廊占位图标颜色 */
html[data-theme="light"] .photo-placeholder {
    background: #f8f8f8 !important;
}

html[data-theme="light"] .photo-placeholder i {
    color: #444 !important;
    /* 与毕业帽图标颜色一致 */
    text-shadow: none !important;
    opacity: 0.7;
}

html[data-theme="light"] .photo-placeholder span {
    color: #444 !important;
}

/* 500px CTA Button Light Mode Overrides */
html[data-theme="light"] .gallery-cta-container {
    border-top: 1px dashed rgba(0, 0, 0, 0.1);
}

html[data-theme="light"] .external-gallery-btn {
    background: #ffffff !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.03) !important;
}

html[data-theme="light"] .external-gallery-btn::before {
    display: none !important;
}

html[data-theme="light"] .external-gallery-btn:hover {
    border-color: rgba(0, 0, 0, 0.2) !important;
    background: #ffffff !important;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08) !important;
    transform: translateY(-4px) !important;
}

html[data-theme="light"] .external-gallery-btn .btn-icon {
    color: #333 !important;
    filter: none !important;
}

html[data-theme="light"] .external-gallery-btn .btn-title {
    color: #1a1a1a !important;
    text-shadow: none !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif !important;
    letter-spacing: normal !important;
}

html[data-theme="light"] .external-gallery-btn .btn-desc {
    color: #666 !important;
}

html[data-theme="light"] .external-gallery-btn .btn-arrow {
    color: #333 !important;
}

/* 5. 顶部导航栏适配 */
html[data-theme="light"] .student-nav {
    background: rgba(255, 255, 255, 0.9) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #eee;
    box-shadow: 0 1px 1px rgba(0, 0, 0, 0.02);
}

html[data-theme="light"] .nav-btn {
    color: #555 !important;
    border-color: #ddd !important;
    background: transparent !important;
    text-shadow: none !important;
    box-shadow: none !important;
    font-family: inherit;
}

html[data-theme="light"] .nav-btn:hover,
html[data-theme="light"] .nav-btn.active {
    color: #000 !important;
    border-color: #000 !important;
    background: #fff !important;
}