/* ==================== 全局样式 ==================== */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
    --primary: #00d4ff;
    --primary-dark: #0099cc;
    --secondary: #7b2cbf;
    --accent: #ff006e;
    --bg-dark: #0a0a1a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.6);
    --border-glow: rgba(0, 212, 255, 0.3);
    --gradient-cyber: linear-gradient(135deg, #00d4ff 0%, #7b2cbf 50%, #ff006e 100%);
    --gradient-glow: linear-gradient(135deg, rgba(0, 212, 255, 0.2), rgba(123, 44, 191, 0.2));
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

/* ==================== 动态背景 ==================== */
.cyber-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    overflow: hidden;
}

.grid-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
    0% { transform: perspective(500px) rotateX(60deg) translateY(0); }
    100% { transform: perspective(500px) rotateX(60deg) translateY(60px); }
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    animation: float 10s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.3), transparent);
    top: -10%;
    right: -10%;
    animation-delay: 0s;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(123, 44, 191, 0.3), transparent);
    bottom: -5%;
    left: -5%;
    animation-delay: -3s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(255, 0, 110, 0.2), transparent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -6s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(-30px, -20px) scale(1.02); }
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    animation: particleFloat 15s linear infinite;
    box-shadow: 0 0 10px var(--primary);
}

@keyframes particleFloat {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-100vh) scale(1); opacity: 0; }
}

/* ==================== 导航栏 ==================== */
.cyber-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 40px;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(180deg, rgba(10, 10, 26, 0.95), transparent);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 212, 255, 0.1);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
}

.brand-logo {
    width: 50px;
    height: 50px;
    background: var(--gradient-cyber);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    position: relative;
    overflow: hidden;
}

.brand-logo::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    animation: shimmer 3s infinite;
}

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

.brand-name {
    font-family: 'Orbitron', sans-serif;
    font-size: 22px;
    font-weight: 700;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 10px;
}

.nav-link {
    position: relative;
    padding: 12px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 8px;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-cyber);
    transition: left 0.3s ease;
    z-index: -1;
}

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

.nav-link:hover::before {
    left: 0;
}

.nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    box-shadow: 0 0 10px var(--primary);
}

/* ==================== 英雄区 ==================== */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    animation: fadeInUp 1s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: var(--primary);
    margin-bottom: 30px;
}

.hero-badge::before {
    content: '●';
    animation: pulse 2s infinite;
}

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

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 64px;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 25px;
    letter-spacing: -1px;
}

.hero-title .highlight {
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-desc {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 500px;
    line-height: 1.8;
}

.hero-features {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 45px;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 18px;
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 50px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
}

.hero-feature:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.hero-feature svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-cyber);
    color: white;
    box-shadow: 0 10px 40px rgba(0, 212, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 212, 255, 0.5);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: rgba(0, 212, 255, 0.1);
}

/* 视觉展示区 */
.hero-visual {
    position: relative;
    animation: fadeInUp 1s ease-out 0.3s backwards;
}

.mockup-container {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.mockup-frame {
    position: relative;
    background: linear-gradient(145deg, #1a1a2e, #0d0d1a);
    border-radius: 40px;
    padding: 15px;
    box-shadow: 
        0 50px 100px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.mockup-screen {
    background: linear-gradient(135deg, #0f0f23, #1a1a35);
    border-radius: 28px;
    height: 350px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.mockup-screen::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 20% 80%, rgba(0, 212, 255, 0.15), transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(123, 44, 191, 0.15), transparent 50%);
}

.screen-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.screen-icon {
    font-size: 80px;
    animation: bounce 2s ease-in-out infinite;
}

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

.screen-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    font-weight: 700;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.mockup-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.3), transparent 70%);
    filter: blur(60px);
    z-index: -1;
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.float-item {
    position: absolute;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid rgba(0, 212, 255, 0.3);
    border-radius: 12px;
    padding: 12px 18px;
    backdrop-filter: blur(10px);
    animation: floatAround 6s ease-in-out infinite;
}

.float-item:nth-child(1) {
    top: 10%;
    left: -20px;
    animation-delay: 0s;
}

.float-item:nth-child(2) {
    top: 50%;
    right: -30px;
    animation-delay: -2s;
}

.float-item:nth-child(3) {
    bottom: 15%;
    left: -40px;
    animation-delay: -4s;
}

@keyframes floatAround {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(2deg); }
    75% { transform: translateY(10px) rotate(-2deg); }
}

/* ==================== 统计区 ==================== */
.stats-section {
    padding: 80px 20px;
    position: relative;
    z-index: 1;
}

.stats-container {
    max-width: 1000px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 35px 25px;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-cyber);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.stat-card:hover::before {
    transform: scaleX(1);
}

.stat-card:hover {
    transform: translateY(-8px);
    border-color: rgba(0, 212, 255, 0.3);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.stat-icon {
    font-size: 40px;
    margin-bottom: 15px;
}

.stat-number {
    font-family: 'Orbitron', sans-serif;
    font-size: 36px;
    font-weight: 800;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ==================== 功能区 ==================== */
.features-section {
    padding: 100px 20px;
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 70px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(123, 44, 191, 0.15);
    border: 1px solid rgba(123, 44, 191, 0.3);
    border-radius: 50px;
    font-size: 13px;
    color: var(--secondary);
    margin-bottom: 20px;
    font-weight: 500;
}

.section-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.features-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 24px;
    padding: 40px 35px;
    position: relative;
    overflow: hidden;
    transition: all 0.4s ease;
    group: true;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-glow);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 
        0 30px 60px rgba(0, 0, 0, 0.3),
        0 0 60px rgba(0, 212, 255, 0.1);
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    background: var(--gradient-cyber);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    margin-bottom: 25px;
    position: relative;
    z-index: 1;
    transition: transform 0.4s ease;
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
}

.feature-content {
    position: relative;
    z-index: 1;
}

.feature-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 15px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.feature-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    transition: gap 0.3s ease;
}

.feature-link:hover {
    gap: 15px;
}

/* ==================== 下载区 ==================== */
.download-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    position: relative;
    z-index: 1;
}

.download-container {
    max-width: 600px;
    width: 100%;
    text-align: center;
}

.download-card {
    background: var(--bg-card);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 32px;
    padding: 60px 50px;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(20px);
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(ellipse at 30% 0%, rgba(0, 212, 255, 0.1), transparent 50%),
        radial-gradient(ellipse at 70% 100%, rgba(123, 44, 191, 0.1), transparent 50%);
    pointer-events: none;
}

.download-icon {
    width: 120px;
    height: 120px;
    background: var(--gradient-cyber);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 60px;
    margin: 0 auto 35px;
    position: relative;
    z-index: 1;
    box-shadow: 0 20px 60px rgba(0, 212, 255, 0.3);
    animation: iconFloat 3s ease-in-out infinite;
}

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

.download-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.download-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.info-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.info-badge .value {
    font-family: 'Orbitron', sans-serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.info-badge .label {
    font-size: 13px;
    color: var(--text-secondary);
}

.btn-download {
    width: 100%;
    padding: 20px;
    font-size: 18px;
    position: relative;
    z-index: 1;
}

.btn-download svg {
    width: 22px;
    height: 22px;
    fill: currentColor;
}

.download-note {
    margin-top: 25px;
    font-size: 13px;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
}

.back-home {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 40px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
}

.back-home:hover {
    color: var(--primary);
    gap: 12px;
}

/* ==================== 404 页面 ==================== */
.error-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 120px 20px 80px;
    position: relative;
    z-index: 1;
}

.error-container {
    text-align: center;
    max-width: 600px;
}

.error-visual {
    position: relative;
    margin-bottom: 50px;
}

.error-glitch {
    font-family: 'Orbitron', sans-serif;
    font-size: 180px;
    font-weight: 900;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    animation: glitch 3s infinite;
}

@keyframes glitch {
    0%, 90%, 100% { transform: translate(0); }
    92% { transform: translate(-5px, 5px); }
    94% { transform: translate(5px, -5px); }
    96% { transform: translate(-3px, 3px); }
    98% { transform: translate(3px, -3px); }
}

.error-icon {
    font-size: 120px;
    margin: 30px 0;
    opacity: 0.5;
}

.error-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 15px;
}

.error-message {
    color: var(--text-secondary);
    font-size: 18px;
    margin-bottom: 40px;
    line-height: 1.7;
}

.error-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== 页脚 ==================== */
.cyber-footer {
    padding: 50px 20px;
    text-align: center;
    position: relative;
    z-index: 1;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.footer-brand {
    font-family: 'Orbitron', sans-serif;
    font-size: 18px;
    font-weight: 700;
    background: var(--gradient-cyber);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-text {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }
    
    .hero-content {
        order: 2;
    }
    
    .hero-visual {
        order: 1;
    }
    
    .hero-desc {
        margin: 0 auto 40px;
    }
    
    .hero-features {
        justify-content: center;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .mockup-container {
        max-width: 400px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .cyber-nav {
        padding: 0 20px;
        height: 70px;
    }
    
    .brand-name {
        font-size: 18px;
    }
    
    .nav-link {
        padding: 10px 16px;
        font-size: 14px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-desc {
        font-size: 16px;
    }
    
    .hero-features {
        gap: 10px;
    }
    
    .hero-feature {
        padding: 8px 14px;
        font-size: 13px;
    }
    
    .btn {
        padding: 14px 28px;
        font-size: 15px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .feature-card {
        padding: 30px 25px;
    }
    
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .stat-card {
        padding: 25px 15px;
    }
    
    .stat-number {
        font-size: 28px;
    }
    
    .download-card {
        padding: 40px 25px;
    }
    
    .download-title {
        font-size: 28px;
    }
    
    .error-glitch {
        font-size: 120px;
    }
    
    .error-title {
        font-size: 24px;
    }
}

@media (max-width: 480px) {
    .nav-links {
        gap: 5px;
    }
    
    .nav-link {
        padding: 8px 12px;
        font-size: 13px;
    }
    
    .hero-title {
        font-size: 32px;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .stats-container {
        grid-template-columns: 1fr;
    }
    
    .download-info {
        flex-direction: column;
        gap: 15px;
    }
    
    .error-actions {
        flex-direction: column;
    }
}