* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

:root {
    --primary: #0084ff;
    --secondary: #9d5cff;
    --accent: #ff2e63;
    --glass-bg: rgba(255, 255, 255, 0.06);
    --glass-border: rgba(255, 255, 255, 0.12);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.37);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

body {
    min-height: 100vh;
    background: #0a0a0d;
    color: #ffffff;
    overflow-x: hidden;
}

/* 自定义光标 */
.cursor-glow {
    position: fixed;
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 132, 255, 0.15) 0%, transparent 70%);
    pointer-events: none;
    z-index: 9999;
    transform: translate(-50%, -50%);
    transition: transform 0.1s ease-out;
    mix-blend-mode: screen;
}

/* 光场背景 */
.light-field {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 15% 25%, rgba(131, 58, 180, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 85% 75%, rgba(253, 29, 29, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(0, 132, 255, 0.1) 0%, transparent 60%);
    z-index: -2;
    animation: lightField 20s ease-in-out infinite alternate;
}

.bg-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #0a0a0d 0%, #121217 100%);
    z-index: -3;
}

@keyframes lightField {
    0% { transform: scale(1) rotate(0deg); }
    100% { transform: scale(1.1) rotate(5deg); }
}

/* 液态玻璃核心 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow);
    border-radius: 24px;
    transition: var(--transition);
}

.glass:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 48px rgba(0, 132, 255, 0.2);
    transform: translateY(-5px);
}

/* 3D液态玻璃 */
.glass-3d {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    border: 1px solid var(--glass-border);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border-radius: 32px;
    transition: var(--transition);
    transform-style: preserve-3d;
    perspective: 1000px;
}

.glass-3d:hover {
    transform: translateY(-8px) rotateX(2deg);
    box-shadow: 
        0 16px 64px rgba(0, 132, 255, 0.25),
        inset 0 1px 0 rgba(255, 255, 255, 0.15);
    border-color: rgba(0, 132, 255, 0.3);
}

/* 导航栏 */
.glass-nav {
    position: fixed;
    top: 24px;
    left: 50%;
    transform: translateX(-50%);
    width: 92%;
    max-width: 1280px;
    height: 76px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 36px;
    z-index: 1000;
    background: rgba(10, 10, 13, 0.7);
    backdrop-filter: blur(16px) saturate(150%);
    -webkit-backdrop-filter: blur(16px) saturate(150%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 28px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

.glass-nav.scrolled {
    top: 16px;
    height: 68px;
    background: rgba(10, 10, 13, 0.85);
}

/* 头像占位符（无图片时显示首字母） */
.member-avatar-placeholder {
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
    font-weight: 800;
    color: #ffffff;
    border: 3px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.member-card:hover .member-avatar-placeholder {
    border-color: var(--primary);
    transform: scale(1.05);
}

.logo {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
}

.nav-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: var(--transition);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition);
    border-radius: 2px;
}

.nav-links a:hover {
    color: #ffffff;
}

.nav-links a:hover::after {
    width: 100%;
}

/* 英雄区 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 60px;
}

.hero-content {
    text-align: center;
    padding: 80px 60px;
    max-width: 900px;
}

.glitch-text {
    font-size: 72px;
    font-weight: 900;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 12px;
    letter-spacing: -1px;
    animation: glitch 5s infinite;
}

@keyframes glitch {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-2px, 2px); }
    94% { transform: translate(2px, -2px); }
    96% { transform: translate(-2px, -2px); }
    98% { transform: translate(2px, 2px); }
}

.hero-content h2 {
    font-size: 28px;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 20px;
}

.slogan {
    font-size: 20px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 48px;
    font-style: italic;
}

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.stat-card {
    padding: 24px;
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: #ffffff;
    box-shadow: 0 8px 24px rgba(0, 132, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(0, 132, 255, 0.4);
}

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

.btn-secondary:hover {
    background: var(--glass-bg);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-3px);
}

.hero-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* 通用区块 */
.section {
    padding: 100px 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #ffffff;
}

.divider {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    margin: 0 auto 20px;
    border-radius: 2px;
}

.section-subtitle {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.6);
    max-width: 600px;
    margin: 0 auto;
}

/* 关于我们 */
.about-content {
    padding: 48px;
    max-width: 800px;
    margin: 0 auto;
}

.about-content p {
    font-size: 18px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 20px;
}

.about-content strong {
    color: #ffffff;
}

/* Writeups 分类筛选 */
.category-filter {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.category-btn:hover,
.category-btn.active {
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-2px);
}

/* Writeups 网格 */
.writeups-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 24px;
}

.writeup-card {
    padding: 28px;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.writeup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.category-badge {
    padding: 6px 14px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-badge.web {
    background: rgba(0, 132, 255, 0.2);
    color: #0084ff;
    border: 1px solid rgba(0, 132, 255, 0.3);
}

.category-badge.reverse {
    background: rgba(157, 92, 255, 0.2);
    color: #9d5cff;
    border: 1px solid rgba(157, 92, 255, 0.3);
}

.category-badge.cloud {
    background: rgba(255, 46, 99, 0.2);
    color: #ff2e63;
    border: 1px solid rgba(255, 46, 99, 0.3);
}

.read-time {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.writeup-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 24px;
    line-height: 1.4;
    flex-grow: 1;
    transition: var(--transition);
}

.writeup-card:hover .writeup-title {
    color: var(--primary);
}

.writeup-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.competition {
    font-weight: 500;
}

/* 赛事战绩 */
.wins-container {
    max-width: 700px;
    margin: 0 auto;
    padding: 48px;
}

.wins-list {
    list-style: none;
}

.win-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
}

.win-item:last-child {
    border-bottom: none;
}

.win-item i {
    color: #ffd700;
    font-size: 20px;
}

/* 团队成员 */
.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.member-card {
    padding: 36px 24px;
    text-align: center;
}

.member-avatar {
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
}

.member-card:hover .member-avatar {
    border-color: var(--primary);
    transform: scale(1.05);
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.member-name {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 8px;
}

.member-role {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

/* 页脚 */
.footer {
    padding: 24px;
    text-align: center;
    margin: 0 20px 24px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
}

.footer p {
    margin-bottom: 8px;
}

/* Writeup详情页 */
.writeup-detail {
    padding: 48px;
    max-width: 900px;
    margin: 0 auto;
}

.writeup-detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.back-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 15px;
    transition: var(--transition);
}

.back-link:hover {
    color: var(--primary);
}

.writeup-detail-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.3;
}

.writeup-meta {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.writeup-meta i {
    margin-right: 6px;
}

.writeup-content {
    font-size: 17px;
    line-height: 1.85;
    color: rgba(255, 255, 255, 0.85);
}

.writeup-content h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 36px 0 16px;
    color: #ffffff;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.writeup-content p {
    margin-bottom: 16px;
}

.writeup-content ul,
.writeup-content ol {
    margin: 16px 0;
    padding-left: 24px;
}

.writeup-content li {
    margin-bottom: 8px;
}

.writeup-content strong {
    color: #ffffff;
}

.writeup-content h1 {
    font-size: 28px;
    font-weight: 700;
    margin: 32px 0 16px;
    color: #ffffff;
}

.writeup-content h3 {
    font-size: 20px;
    font-weight: 600;
    margin: 28px 0 12px;
    color: #ffffff;
}

.writeup-content h4 {
    font-size: 17px;
    font-weight: 600;
    margin: 24px 0 10px;
    color: rgba(255, 255, 255, 0.9);
}

.writeup-content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 16px 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.writeup-content pre {
    margin: 20px 0;
    padding: 20px 24px;
    background: rgba(0, 0, 0, 0.4);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow-x: auto;
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #abb2bf;
}

.writeup-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 16px 0;
    font-size: 14px;
}

.writeup-content th,
.writeup-content td {
    padding: 10px 14px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-align: left;
}

.writeup-content th {
    background: rgba(0, 132, 255, 0.1);
    font-weight: 600;
    color: #ffffff;
}

.writeup-content blockquote {
    margin: 16px 0;
    padding: 16px 20px;
    border-left: 4px solid var(--primary);
    background: rgba(0, 132, 255, 0.06);
    border-radius: 0 12px 12px 0;
    color: rgba(255, 255, 255, 0.75);
}

.writeup-content a {
    color: var(--primary);
    text-decoration: none;
    border-bottom: 1px solid rgba(0, 132, 255, 0.3);
    transition: var(--transition);
}

.writeup-content a:hover {
    color: #4da6ff;
    border-bottom-color: #4da6ff;
}

.writeup-content hr {
    border: none;
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 32px 0;
}

/* 代码块样式 - 液态玻璃IDE风格 */
.code-block {
    margin: 20px 0;
    border-radius: 16px;
    overflow: hidden;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.code-block pre {
    padding: 20px 24px;
    margin: 0;
    overflow-x: auto;
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #abb2bf;
}

.code-block code {
    background: transparent;
    padding: 0;
    border-radius: 0;
    font-family: inherit;
}

/* 内联代码 */
.writeup-content code:not(.code-block code) {
    background: rgba(0, 132, 255, 0.15);
    color: #79c0ff;
    padding: 2px 8px;
    border-radius: 6px;
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    font-size: 0.9em;
    border: 1px solid rgba(0, 132, 255, 0.2);
}

/* Writeup导航 */
.writeup-nav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.writeup-nav .btn {
    max-width: 48%;
    font-size: 14px;
    padding: 12px 24px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 靶机练习 Labs */
.labs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.lab-card {
    padding: 28px;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    gap: 16px;
    position: relative;
    overflow: hidden;
}

.lab-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #22c55e, #10b981);
    opacity: 0;
    transition: var(--transition);
}

.lab-card:hover::before {
    opacity: 1;
}

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

.lab-name {
    font-size: 20px;
    font-weight: 700;
    font-family: 'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, monospace;
    color: #ffffff;
    transition: var(--transition);
}

.lab-card:hover .lab-name {
    color: #22c55e;
}

.difficulty-badge {
    padding: 4px 14px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.difficulty-badge.ez {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.difficulty-badge.hd {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.difficulty-badge.md {
    background: rgba(234, 179, 8, 0.2);
    color: #eab308;
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.lab-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
}

.lab-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.lab-status {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
}

.lab-launch {
    font-size: 14px;
    font-weight: 600;
    color: #22c55e;
    transition: var(--transition);
}

.lab-card:hover .lab-launch {
    transform: translateX(4px);
    color: #4ade80;
}

/* Admin Labs Table */
.labs-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.labs-table th {
    text-align: left;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.labs-table td {
    padding: 16px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.labs-table tr td:first-child {
    border-left: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px 0 0 12px;
}

.labs-table tr td:last-child {
    border-right: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 0 12px 12px 0;
}

.labs-table .lab-url {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
    max-width: 250px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Featured 卡片 */
.featured-card {
    position: relative;
    border: 1px solid rgba(255, 215, 0, 0.15);
}

.featured-card:hover {
    border-color: rgba(255, 215, 0, 0.35);
    box-shadow: 0 12px 48px rgba(255, 215, 0, 0.15);
}

.featured-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 8px;
    background: rgba(255, 215, 0, 0.15);
    color: #ffd700;
    border: 1px solid rgba(255, 215, 0, 0.25);
    letter-spacing: 0.5px;
}

/* 搜索框 */
.writeups-search-bar {
    max-width: 500px;
    margin: 0 auto 32px;
}

.search-input {
    width: 100%;
    padding: 14px 24px;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    color: #ffffff;
    font-size: 15px;
    outline: none;
    transition: var(--transition);
}

.search-input::placeholder {
    color: rgba(255, 255, 255, 0.35);
}

.search-input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 24px rgba(0, 132, 255, 0.2);
}

/* 赛事筛选按钮 */
.competition-btn {
    padding: 10px 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.competition-btn:hover,
.competition-btn.active {
    background: linear-gradient(90deg, #f43f5e, #8b5cf6);
    color: #ffffff;
    border-color: transparent;
    transform: translateY(-2px);
}

/* 响应式 */
@media (max-width: 768px) {
    .glass-nav {
        width: 95%;
        padding: 0 20px;
    }
    
    .nav-links {
        display: none;
    }
    
    .hero-content {
        padding: 60px 30px;
    }
    
    .glitch-text {
        font-size: 48px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .section-header h2 {
        font-size: 32px;
    }
    
    .writeups-grid {
        grid-template-columns: 1fr;
    }
    
    .members-grid {
        grid-template-columns: 1fr;
    }
    .hamburger {
        display: flex;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: 76px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 30, 0.95);
        backdrop-filter: blur(20px);
        padding: 16px 24px;
        gap: 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .nav-links.active {
        display: flex;
    }
    .nav-links li {
        padding: 12px 0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }
    .nav-links li:last-child {
        border-bottom: none;
    }
    .error-code {
        font-size: 80px;
    }
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 40px;
        height: 40px;
        font-size: 16px;
    }
}

/* ─── Hamburger Menu ─── */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}
.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    transition: all 0.3s ease;
}

/* ─── Tags ─── */
.tag {
    display: inline-block;
    padding: 2px 10px;
    background: rgba(0, 212, 255, 0.15);
    color: #00d4ff;
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 12px;
    font-size: 11px;
    font-weight: 500;
    margin: 2px 4px 2px 0;
}
.writeup-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin: 8px 0;
}
.tags-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-bottom: 32px;
}
.tag-btn {
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.3s ease;
}
.tag-btn:hover, .tag-btn.active {
    background: rgba(0, 212, 255, 0.2);
    border-color: #00d4ff;
    color: #00d4ff;
}

/* ─── View Count ─── */
.view-count {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    white-space: nowrap;
}

/* ─── Featured Badge ─── */
.featured-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: linear-gradient(135deg, #f59e0b, #f97316);
    color: #000;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.5px;
}

/* ─── Social Links ─── */
.social-links {
    display: flex;
    gap: 16px;
    margin-top: 24px;
    justify-content: center;
}
.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text);
    transition: all 0.3s ease;
}
.social-link:hover {
    background: rgba(0, 132, 255, 0.2);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

/* ─── Error Pages ─── */
.error-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    text-align: center;
    padding: 20px;
}
.error-content {
    max-width: 500px;
}
.error-code {
    font-size: 120px;
    font-weight: 900;
    background: linear-gradient(135deg, var(--primary), var(--secondary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 24px;
}
.error-content h2 {
    font-size: 24px;
    margin-bottom: 12px;
    color: var(--text);
}
.error-content p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 16px;
}

/* ─── Back to Top ─── */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    border: none;
    font-size: 20px;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0, 132, 255, 0.3);
}
.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}
.back-to-top:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 132, 255, 0.5);
}

/* ─── Labs Empty State ─── */
.lab-empty {
    opacity: 0.5;
    grid-column: 1 / -1;
    text-align: center;
    padding: 48px 24px;
}

/* ─── Code Block VS Code Style ─── */
.code-block-container {
    margin: 24px 0;
    border-radius: 8px;
    overflow: hidden;
    background: #1e1e1e;
    border: 1px solid rgba(255, 255, 255, 0.06);
}
.code-block-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: #2d2d2d;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.code-block-dots {
    display: flex;
    gap: 6px;
}
.code-block-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}
.code-block-dots span:nth-child(1) { background: #ff5f56; }
.code-block-dots span:nth-child(2) { background: #ffbd2e; }
.code-block-dots span:nth-child(3) { background: #27c93f; }
.code-block-title {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    font-family: 'Consolas', 'Monaco', monospace;
}
.code-copy-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.2s;
}
.code-copy-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}
.code-block-container pre {
    margin: 0 !important;
    padding: 16px !important;
    background: #1e1e1e !important;
    border: none !important;
    border-radius: 0 !important;
    overflow-x: auto;
}
.code-block-container pre code {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace !important;
    font-size: 13px !important;
    line-height: 1.6 !important;
    color: #d4d4d4 !important;
}

/* Prism.js VS Code Dark+ override */
pre[class*="language-"] {
    background: #1e1e1e !important;
    border: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
}
code[class*="language-"] {
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace !important;
    font-size: 13px !important;
    color: #d4d4d4 !important;
}
.line-numbers .line-numbers-rows {
    border-right-color: rgba(255, 255, 255, 0.06) !important;
}