/* 科技未来风格 CSS */
:root {
    --primary-color: #00ff88;
    --secondary-color: #0066ff;
    --accent-color: #ff0066;
    --bg-dark: #0a0a0a;
    --bg-darker: #000000;
    --text-light: #ffffff;
    --text-gray: #888888;
    --border-glow: rgba(0, 255, 136, 0.3);
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-bg: rgba(255, 255, 255, 0.1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-light);
    overflow-x: hidden;
    line-height: 1.6;
}

/* 背景粒子效果 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glow);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    animation: rotate 10s linear infinite;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.version {
    background: var(--accent-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}

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

.nav-link {
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    position: relative;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
}

.nav-link::before {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.nav-link:hover::before {
    opacity: 1;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: 0.3s;
}

/* 主页区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-darker) 0%, var(--bg-dark) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at center, rgba(0, 255, 136, 0.1) 0%, transparent 70%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 20px 0;
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--glass-bg);
    border: 1px solid var(--border-glow);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(10px);
    animation: glow 3s ease-in-out infinite;
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease-in-out infinite;
}

.hero-description {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    display: block;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-gray);
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

.btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-dark);
    box-shadow: 0 10px 30px rgba(0, 255, 136, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 255, 136, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-light);
    border: 2px solid var(--border-glow);
}

.btn-secondary:hover {
    background: var(--glass-bg);
    box-shadow: 0 10px 30px var(--border-glow);
}

/* 浮动元素 */
.hero-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-elements {
    position: absolute;
    width: 100%;
    height: 100%;
}

.float-card {
    position: absolute;
    background: var(--glass-bg);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 1rem;
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: float 6s ease-in-out infinite;
    color: var(--text-light);
    font-size: 0.9rem;
}

.float-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.card-ai { top: 10%; left: 10%; animation-delay: 0s; }
.card-data { top: 20%; right: 15%; animation-delay: 1.5s; }
.card-cloud { bottom: 30%; left: 20%; animation-delay: 3s; }
.card-ml { bottom: 10%; right: 10%; animation-delay: 4.5s; }

.tech-circle {
    width: 200px;
    height: 200px;
    border: 2px solid var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 3s ease-in-out infinite;
    position: relative;
}

.tech-circle::before {
    content: '';
    position: absolute;
    width: 150px;
    height: 150px;
    border: 1px solid rgba(0, 255, 136, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.circle-inner {
    width: 100px;
    height: 100px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--bg-dark);
}

/* AI技术展示 */
.tech-section {
    padding: 100px 0;
    background: var(--bg-dark);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.tech-card {
    background: var(--card-bg);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tech-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 136, 0.1), transparent);
    transition: left 0.5s ease;
}

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

.tech-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 255, 136, 0.2);
}

.tech-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    font-size: 2rem;
    color: var(--bg-dark);
}

.tech-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.tech-card p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.tech-progress {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 0.5rem;
}

.progress-bar {
    height: 100%;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 3px;
    animation: loading 2s ease-out;
}

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

/* 核心功能 */
.features-section {
    padding: 100px 0;
    background: var(--bg-darker);
}

.features-container {
    margin-top: 4rem;
}

.feature-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
}

.tab-btn {
    padding: 1rem 2rem;
    background: transparent;
    border: 2px solid var(--border-glow);
    border-radius: 50px;
    color: var(--text-light);
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
}

.tab-btn.active,
.tab-btn:hover {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-dark);
    border-color: transparent;
}

.feature-content {
    position: relative;
    min-height: 500px;
}

.feature-panel {
    display: none;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    animation: fadeIn 0.5s ease-in-out;
}

.feature-panel.active {
    display: grid;
}

.panel-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 400px;
    position: relative;
}

.panel-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.panel-info p {
    font-size: 1.1rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
    line-height: 1.7;
}

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

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-light);
}

.feature-list i {
    color: var(--primary-color);
}

/* AI Brain 可视化 */
.ai-brain {
    width: 300px;
    height: 300px;
    position: relative;
    border: 2px solid var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse 3s ease-in-out infinite;
}

.neural-network {
    position: relative;
    width: 200px;
    height: 200px;
}

.node {
    position: absolute;
    width: 20px;
    height: 20px;
    background: var(--primary-color);
    border-radius: 50%;
    animation: nodeGlow 2s ease-in-out infinite;
}

.node:nth-child(1) { top: 20px; left: 50%; transform: translateX(-50%); }
.node:nth-child(2) { bottom: 20px; left: 20%; }
.node:nth-child(3) { bottom: 20px; right: 20%; }
.node:nth-child(4) { top: 50%; left: 50%; transform: translate(-50%, -50%); }

.connection {
    position: absolute;
    height: 2px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    opacity: 0.7;
    animation: dataFlow 3s ease-in-out infinite;
}

/* 知识图谱可视化 */
.knowledge-graph {
    position: relative;
    width: 300px;
    height: 300px;
}

.knowledge-node {
    position: absolute;
    background: var(--glass-bg);
    border: 2px solid var(--border-glow);
    border-radius: 15px;
    padding: 1rem;
    color: var(--text-light);
    font-size: 0.9rem;
    backdrop-filter: blur(10px);
    animation: float 4s ease-in-out infinite;
}

.knowledge-node.main {
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    color: var(--bg-dark);
    font-weight: 600;
}

.knowledge-node:nth-child(2) { top: 10%; left: 10%; animation-delay: 1s; }
.knowledge-node:nth-child(3) { top: 10%; right: 10%; animation-delay: 2s; }
.knowledge-node:nth-child(4) { bottom: 10%; left: 30%; animation-delay: 3s; }

/* 社交网络可视化 */
.social-network {
    position: relative;
    width: 300px;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.user-avatar {
    position: absolute;
    width: 60px;
    height: 60px;
    background: var(--glass-bg);
    border: 2px solid var(--border-glow);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    backdrop-filter: blur(10px);
    animation: bounce 2s ease-in-out infinite;
}

.user-avatar:nth-child(1) { top: 20px; left: 50%; transform: translateX(-50%); }
.user-avatar:nth-child(2) { bottom: 20px; left: 20%; animation-delay: 0.5s; }
.user-avatar:nth-child(3) { bottom: 20px; right: 20%; animation-delay: 1s; }

.chat-bubble {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--primary-color);
    color: var(--bg-dark);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    animation: pulse 2s ease-in-out infinite;
}

.share-icon {
    position: absolute;
    top: 30%;
    right: 30%;
    color: var(--primary-color);
    font-size: 1.5rem;
    animation: rotate 3s linear infinite;
}

/* 下载应用 */
.download-section {
    padding: 100px 0;
    background: var(--bg-dark);
}

.download-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.download-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.download-info p {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.download-features {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 3rem;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-light);
}

.download-feature i {
    color: var(--primary-color);
    font-size: 1.2rem;
}

.download-buttons {
    display: flex;
    gap: 1rem;
}

.download-btn {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--glass-bg);
    border: 2px solid var(--border-glow);
    border-radius: 15px;
    padding: 1rem 1.5rem;
    color: var(--text-light);
    text-decoration: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.download-btn:hover {
    background: var(--border-glow);
    transform: translateY(-2px);
}

.download-btn i {
    font-size: 2rem;
}

.download-btn div {
    display: flex;
    flex-direction: column;
}

.download-btn .small {
    font-size: 0.8rem;
    opacity: 0.8;
}

.download-btn .large {
    font-size: 1rem;
    font-weight: 600;
}

/* 手机展示 */
.phone-showcase {
    display: flex;
    justify-content: center;
}

.phone-device {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 40px;
    padding: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    position: relative;
}

.phone-device::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 6px;
    background: #444;
    border-radius: 3px;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-darker);
    border-radius: 30px;
    overflow: hidden;
    position: relative;
}

.app-ui {
    padding: 2rem 1.5rem;
    height: 100%;
    background: linear-gradient(135deg, var(--bg-darker), var(--bg-dark));
}

.status-bar {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.app-header h4 {
    color: var(--text-light);
    font-size: 1.2rem;
}

.progress-ring {
    position: relative;
}

.progress-ring-svg {
    transform: rotate(-90deg);
}

.progress-ring-circle {
    stroke-dasharray: 100 100;
    stroke-dashoffset: 25;
    transition: stroke-dashoffset 0.3s ease;
}

.progress-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 0.8rem;
    color: var(--primary-color);
    font-weight: 600;
}

.learning-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.learning-card {
    background: var(--glass-bg);
    border: 1px solid var(--border-glow);
    border-radius: 15px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    backdrop-filter: blur(10px);
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.card-icon.ai {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
}

.card-icon.data {
    background: linear-gradient(45deg, var(--secondary-color), var(--accent-color));
}

.card-content h5 {
    color: var(--text-light);
    font-size: 0.9rem;
    margin-bottom: 0.2rem;
}

.card-content p {
    color: var(--text-gray);
    font-size: 0.8rem;
}

/* 联系我们 */
.contact-section {
    padding: 100px 0;
    background: var(--bg-darker);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.contact-info p {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 2rem;
}

.contact-stats {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-stat {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-light);
}

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

.contact-form {
    background: var(--glass-bg);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 2rem;
    backdrop-filter: blur(10px);
}

.form-group {
    position: relative;
    margin-bottom: 1rem;
}

.form-group input {
    width: 100%;
    padding: 1rem 4rem 1rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 2px solid var(--border-glow);
    border-radius: 50px;
    color: var(--text-light);
    font-size: 1rem;
    outline: none;
    transition: all 0.3s ease;
}

.form-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.form-group input::placeholder {
    color: var(--text-gray);
}

.submit-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 50%;
    color: var(--bg-dark);
    cursor: pointer;
    transition: all 0.3s ease;
}

.submit-btn:hover {
    transform: translateY(-50%) scale(1.1);
}

.form-note {
    font-size: 0.9rem;
    color: var(--text-gray);
    text-align: center;
}

/* 页脚 */
.footer {
    background: var(--bg-darker);
    border-top: 1px solid var(--border-glow);
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-logo i {
    color: var(--primary-color);
}

.footer-brand p {
    color: var(--text-gray);
}

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

.link-group h4 {
    color: var(--text-light);
    margin-bottom: 1rem;
    font-weight: 600;
}

.link-group a {
    display: block;
    color: var(--text-gray);
    text-decoration: none;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-gray);
}

/* 动画效果 */
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes glow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 255, 136, 0.3); }
    50% { box-shadow: 0 0 30px rgba(0, 255, 136, 0.5); }
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes loading {
    from { width: 0; }
    to { width: var(--progress-width, 100%); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes nodeGlow {
    0%, 100% { box-shadow: 0 0 10px var(--primary-color); }
    50% { box-shadow: 0 0 20px var(--primary-color), 0 0 30px var(--primary-color); }
}

@keyframes dataFlow {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.95);
        backdrop-filter: blur(20px);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        padding: 2rem 0;
        border-top: 1px solid var(--border-glow);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .feature-panel {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .download-container,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .tech-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}