/* ==========================================
   全局样式和CSS变量
   ========================================== */
:root {
    /* 颜色系统 */
    --color-primary: #7C6FE8;
    --color-primary-light: #9D93F3;
    --color-primary-dark: #5B4FD4;
    --color-secondary: #5B9FFF;
    --color-accent: #FF6B6B;
    --color-success: #51CF66;
    
    /* 渐变 */
    --gradient-primary: linear-gradient(135deg, #7C6FE8 0%, #5B9FFF 100%);
    --gradient-hero: linear-gradient(135deg, #F5F3FF 0%, #EEF2FF 50%, #E0E7FF 100%);
    --gradient-dark: linear-gradient(135deg, #1A1A2E 0%, #16213E 100%);
    
    /* 中性色 */
    --color-white: #FFFFFF;
    --color-gray-50: #F9FAFB;
    --color-gray-100: #F3F4F6;
    --color-gray-200: #E5E7EB;
    --color-gray-300: #D1D5DB;
    --color-gray-400: #9CA3AF;
    --color-gray-500: #6B7280;
    --color-gray-600: #4B5563;
    --color-gray-700: #374151;
    --color-gray-800: #1F2937;
    --color-gray-900: #111827;
    
    /* 间距 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    
    /* 字体 */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
    
    /* 圆角 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* 阴影 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    
    /* 过渡 */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================
   基础重置
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-gray-800);
    line-height: 1.6;
    background-color: var(--color-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all var(--transition-base);
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: all var(--transition-base);
}

/* ==========================================
   容器和工具类
   ========================================== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ==========================================
   导航栏
   ========================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
    gap: var(--spacing-lg);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
}

.brand-name {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-gray-900);
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-link {
    font-weight: 500;
    color: var(--color-gray-600);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.nav-link:hover {
    color: var(--color-primary);
    background-color: var(--color-gray-50);
}

/* ==========================================
   按钮样式
   ========================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.625rem 1.25rem;
    font-size: 0.9375rem;
    font-weight: 600;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: 0.875rem 2rem;
    font-size: 1.0625rem;
}

.btn-download {
    background: var(--color-accent);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-outline {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
    background: transparent;
}

.btn-outline:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn .icon {
    width: 20px;
    height: 20px;
}

.btn-download-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
}

.btn-download-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

/* ==========================================
   Hero 区域
   ========================================== */
.hero {
    position: relative;
    padding: calc(70px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -1;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 111, 232, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 20s ease-in-out infinite;
}

.hero-bg::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(91, 159, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(30px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-20px, 30px) scale(0.9);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}

.hero-text {
    animation: fadeInUp 0.8s ease-out;
    padding-right: var(--spacing-lg);
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
}

.hero-description {
    font-size: 1.125rem;
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--spacing-2xl);
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 1.875rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray-600);
}

.hero-image {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    animation: fadeInRight 0.8s ease-out;
    padding-left: var(--spacing-md);
}

.phone-mockup {
    position: relative;
    filter: drop-shadow(0 20px 40px rgba(124, 111, 232, 0.3));
    animation: floatPhone 3s ease-in-out infinite;
}

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

.phone-frame {
    position: relative;
    width: 280px;
    padding: 12px;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: 40px;
    box-shadow: 
        inset 0 0 0 2px rgba(0, 0, 0, 0.1),
        0 30px 60px rgba(0, 0, 0, 0.2);
}

.phone-screen {
    width: 100%;
    border-radius: 32px;
    overflow: hidden;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==========================================
   章节标题
   ========================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-md);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--color-gray-600);
}

/* ==========================================
   功能区域
   ========================================== */
.features {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
    align-items: stretch;
}

.feature-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-xl);
    border: 1px solid var(--color-gray-200);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-base);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-xl);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    stroke: var(--color-white);
    stroke-width: 2;
}

.feature-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.feature-description {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
    flex: 1;
    min-height: 2.4em;
}

.feature-image {
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    margin-top: auto;
    background: var(--color-gray-100);
    transition: all var(--transition-base);
}

.feature-image img {
    width: 100%;
    max-height: 280px;
    object-fit: cover;
    object-position: top;
    transition: transform var(--transition-slow);
    display: block;
}

.feature-card:hover .feature-image {
    box-shadow: var(--shadow-2xl);
}

.feature-card:hover .feature-image img {
    transform: scale(1.02);
}

/* ==========================================
   特色亮点区域
   ========================================== */
.highlights {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-hero);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.highlight-item {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.highlight-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.highlight-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: transform var(--transition-base);
}

.highlight-item:hover .highlight-icon {
    transform: scale(1.2);
}

.highlight-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-gray-900);
    margin-bottom: var(--spacing-sm);
}

.highlight-description {
    font-size: 0.9375rem;
    color: var(--color-gray-600);
}

/* ==========================================
   截图展示区域
   ========================================== */
.screenshots {
    padding: var(--spacing-3xl) 0;
    background: var(--color-white);
}

.mode-switcher {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
}

.mode-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    font-weight: 600;
    background: var(--color-gray-100);
    color: var(--color-gray-600);
    transition: all var(--transition-base);
}

.mode-btn svg {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.mode-btn.active {
    background: var(--gradient-primary);
    color: var(--color-white);
}

.mode-btn:hover:not(.active) {
    background: var(--color-gray-200);
}

.carousel-container {
    position: relative;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 60px;
}

.carousel-wrapper {
    overflow: hidden;
    border-radius: var(--radius-2xl);
}

.carousel-track {
    display: flex;
    gap: var(--spacing-lg);
    transition: transform var(--transition-slow);
}

.carousel-item {
    min-width: calc(33.333% - var(--spacing-lg));
    flex-shrink: 0;
    text-align: center;
}

.phone-mockup-small {
    position: relative;
    padding: 6px;
    background: linear-gradient(145deg, #ffffff, #f0f0f0);
    border-radius: 24px;
    box-shadow: 
        inset 0 0 0 2px rgba(0, 0, 0, 0.08),
        0 10px 30px rgba(0, 0, 0, 0.15);
    margin: 0 auto var(--spacing-md);
    max-width: 180px;
    transition: all var(--transition-base);
}

.phone-mockup-small:hover {
    transform: scale(1.05);
    box-shadow: 
        inset 0 0 0 2px rgba(0, 0, 0, 0.08),
        0 15px 40px rgba(0, 0, 0, 0.2);
}

.phone-mockup-small img {
    width: 100%;
    border-radius: 20px;
}

.carousel-caption {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-gray-700);
}

.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--color-white);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all var(--transition-base);
}

.carousel-btn:hover {
    background: var(--gradient-primary);
    transform: translateY(-50%) scale(1.1);
}

.carousel-btn:hover svg {
    stroke: var(--color-white);
}

.carousel-btn.prev {
    left: 0;
}

.carousel-btn.next {
    right: 0;
}

.carousel-btn svg {
    width: 24px;
    height: 24px;
    stroke: var(--color-gray-700);
    stroke-width: 2;
    transition: stroke var(--transition-base);
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-gray-300);
    cursor: pointer;
    transition: all var(--transition-base);
}

.indicator.active {
    background: var(--color-primary);
    width: 30px;
    border-radius: var(--radius-full);
}

/* ==========================================
   下载区域
   ========================================== */
.download {
    padding: var(--spacing-3xl) 0;
    background: var(--gradient-primary);
    color: var(--color-white);
}

.download-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.download-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

.download-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.download-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.9375rem;
    opacity: 0.9;
}

.info-icon {
    width: 20px;
    height: 20px;
    stroke-width: 2;
}

.download-qr {
    display: flex;
    justify-content: center;
}

.qr-card {
    background: var(--color-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    text-align: center;
}

.qr-code {
    width: 200px;
    height: 200px;
    background: var(--color-gray-100);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.qr-code img {
    width: 150px;
    height: 150px;
}

.qr-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-gray-700);
}

/* ==========================================
   页脚
   ========================================== */
.footer {
    background: var(--color-gray-900);
    color: var(--color-gray-400);
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.footer-logo img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
}

.footer-logo span {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-white);
}

.footer-description {
    font-size: 0.9375rem;
    line-height: 1.7;
}

.footer-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    font-size: 0.9375rem;
    transition: color var(--transition-base);
}

.footer-links a:hover {
    color: var(--color-primary-light);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-800);
    font-size: 0.875rem;
}

/* ==========================================
   回到顶部按钮
   ========================================== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.back-to-top svg {
    width: 24px;
    height: 24px;
    stroke-width: 2.5;
}

/* ==========================================
   响应式设计 - 大屏幕
   ========================================== */
@media (min-width: 1400px) {
    .hero-content {
        max-width: 1200px;
        gap: var(--spacing-3xl);
    }
    
    .phone-frame {
        width: 300px;
    }
}

/* ==========================================
   响应式设计 - 平板
   ========================================== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        max-width: 100%;
    }
    
    .hero-text {
        text-align: center;
        padding-right: 0;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: var(--spacing-xl);
    }
    
    .hero-image {
        justify-content: center;
        padding-left: 0;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .feature-image img {
        max-height: 320px;
    }
    
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .download-buttons {
        justify-content: center;
    }
    
    .download-info {
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .carousel-item {
        min-width: calc(50% - var(--spacing-lg));
    }
    
    .phone-mockup-small {
        max-width: 160px;
    }
}

/* ==========================================
   响应式设计 - 手机
   ========================================== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .nav-menu {
        display: none;
    }
    
    .nav-content .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .hero {
        padding: calc(70px + var(--spacing-xl)) 0 var(--spacing-xl);
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-buttons .btn {
        width: 100%;
    }
    
    .phone-frame {
        width: 260px;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .carousel-container {
        padding: 0 var(--spacing-lg);
    }
    
    .carousel-btn {
        width: 40px;
        height: 40px;
    }
    
    .carousel-btn svg {
        width: 20px;
        height: 20px;
    }
    
    .carousel-item {
        min-width: 100%;
    }
    
    .phone-mockup-small {
        max-width: 150px;
    }
    
    .download-title {
        font-size: 2rem;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .back-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .phone-frame {
        width: 220px;
    }
    
    .phone-mockup-small {
        max-width: 140px;
    }
    
    .qr-code {
        width: 160px;
        height: 160px;
    }
    
    .qr-code img {
        width: 120px;
        height: 120px;
    }
}