/* ============================================
   思念宝官网 - Premium Design System
   ============================================ */

/* ----------- CSS Variables / Theme ----------- */
:root {
    /* Colors - Dark Theme (Default) */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.08);
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #f0f0f5;
    --text-secondary: rgba(240, 240, 245, 0.65);
    --text-muted: rgba(240, 240, 245, 0.4);
    --accent-primary: #a78bfa;
    --accent-secondary: #f472b6;
    --accent-warm: #fb923c;
    --gradient-primary: linear-gradient(135deg, #a78bfa 0%, #f472b6 50%, #fb923c 100%);
    --gradient-bg: linear-gradient(180deg, #0a0a0f 0%, #1a1025 50%, #0a0a0f 100%);
    --gradient-hero: linear-gradient(180deg, rgba(10, 10, 15, 0.3) 0%, rgba(10, 10, 15, 0.7) 50%, rgba(10, 10, 15, 0.95) 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(167, 139, 250, 0.15);
    --border-subtle: rgba(255, 255, 255, 0.08);
    --nav-bg: rgba(10, 10, 15, 0.8);

    /* Typography */
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.75rem;
    --font-size-5xl: 3.5rem;

    /* Spacing */
    --section-padding: 120px;
    --container-max: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Theme */
[data-theme="light"] {
    --bg-primary: #fafafe;
    --bg-secondary: #f0f0f8;
    --bg-card: rgba(0, 0, 0, 0.03);
    --bg-card-hover: rgba(0, 0, 0, 0.06);
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-border: rgba(0, 0, 0, 0.08);
    --text-primary: #1a1a2e;
    --text-secondary: rgba(26, 26, 46, 0.65);
    --text-muted: rgba(26, 26, 46, 0.4);
    --gradient-bg: linear-gradient(180deg, #fafafe 0%, #f0e6ff 50%, #fafafe 100%);
    --gradient-hero: linear-gradient(180deg, rgba(250, 250, 254, 0.2) 0%, rgba(250, 250, 254, 0.6) 50%, rgba(250, 250, 254, 0.95) 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.1);
    --shadow-glow: 0 0 40px rgba(167, 139, 250, 0.1);
    --border-subtle: rgba(0, 0, 0, 0.06);
    --nav-bg: rgba(250, 250, 254, 0.85);
}

/* ----------- Reset & Base ----------- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

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

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

/* ----------- Scrollbar ----------- */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

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

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

@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-12px);
    }
}

@keyframes pulse-glow {

    0%,
    100% {
        opacity: 0.4;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

@keyframes scroll-hint {

    0%,
    100% {
        opacity: 0.4;
        transform: translateY(0);
    }

    50% {
        opacity: 1;
        transform: translateY(8px);
    }
}

@keyframes particle-float {
    0% {
        transform: translateY(0) translateX(0);
        opacity: 0;
    }

    10% {
        opacity: 1;
    }

    90% {
        opacity: 1;
    }

    100% {
        transform: translateY(-100vh) translateX(50px);
        opacity: 0;
    }
}

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
        transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ----------- Navigation ----------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: transparent;
    transition: all var(--transition-base);
}

.navbar.scrolled {
    padding: 10px 0;
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: var(--font-size-xl);
}

.logo-wrapper {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.logo-img {
    width: 24px;
    height: 24px;
    object-fit: contain;
}

.nav-links {
    display: flex;
    gap: 36px;
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
    padding: 4px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
    transition: width var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.theme-toggle,
.lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    background: var(--bg-glass);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: var(--font-size-xs);
    font-weight: 600;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.theme-toggle:hover,
.lang-toggle:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--accent-primary);
}

.icon-moon {
    display: none;
}

[data-theme="light"] .icon-sun {
    display: none;
}

[data-theme="light"] .icon-moon {
    display: block;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 1px;
    transition: all var(--transition-fast);
}

/* ----------- Hero Section ----------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center 30%;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
    z-index: 1;
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
}

.hero-particles .particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--accent-primary);
    border-radius: 50%;
    opacity: 0;
    animation: particle-float linear infinite;
    box-shadow: 0 0 6px var(--accent-primary);
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding-top: 100px;
    padding-bottom: 60px;
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: 50px;
    font-size: var(--font-size-sm);
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 28px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 20px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.hero-slogan {
    font-size: var(--font-size-2xl);
    font-weight: 400;
    color: var(--text-secondary);
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.hero-desc {
    font-size: var(--font-size-lg);
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.stat-icon {
    font-size: 1.5rem;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-divider {
    width: 1px;
    height: 32px;
    background: var(--border-subtle);
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    color: var(--text-muted);
    font-size: var(--font-size-xs);
    animation: scroll-hint 2s ease infinite;
}

/* ----------- Buttons ----------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-sans);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 4px 20px rgba(167, 139, 250, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(167, 139, 250, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--bg-glass);
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

/* ----------- Section Shared ----------- */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--bg-glass-border);
    border-radius: 50px;
    font-size: var(--font-size-xs);
    color: var(--accent-primary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    max-width: 560px;
    margin: 0 auto;
}

/* ----------- Features Section ----------- */
.features {
    padding: var(--section-padding) 0;
    background: var(--gradient-bg);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    position: relative;
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent, #a78bfa), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

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

.feature-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(167, 139, 250, 0.1);
    border-radius: var(--radius-md);
    margin-bottom: 24px;
    color: var(--accent, #a78bfa);
    transition: all var(--transition-base);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: rgba(167, 139, 250, 0.15);
}

.feature-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ----------- About Section ----------- */
.about {
    padding: var(--section-padding) 0;
    position: relative;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-visual {
    display: flex;
    justify-content: center;
}

/* App Showcase - Real Screenshots */
.app-showcase {
    position: relative;
    width: 420px;
    height: 520px;
}

.showcase-phone {
    position: absolute;
    transition: all var(--transition-slow);
}

.showcase-phone-1 {
    left: 0;
    top: 20px;
    z-index: 2;
    animation: float 6s ease-in-out infinite;
}

.showcase-phone-2 {
    right: 0;
    top: 0;
    z-index: 1;
    animation: float 6s ease-in-out infinite 1.5s;
}

.phone-frame-real {
    position: relative;
    width: 220px;
    border-radius: 28px;
    overflow: hidden;
    background: #1a1a2e;
    padding: 8px;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4),
        0 8px 20px rgba(0, 0, 0, 0.3),
        inset 0 0 0 1.5px rgba(255, 255, 255, 0.12);
}

[data-theme="light"] .phone-frame-real {
    background: #e8e8f0;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.12),
        0 8px 20px rgba(0, 0, 0, 0.08),
        inset 0 0 0 1.5px rgba(0, 0, 0, 0.06);
}

.phone-frame-real img {
    width: 100%;
    height: auto;
    border-radius: 20px;
    display: block;
}

.showcase-phone:hover {
    transform: translateY(-8px) scale(1.02);
    z-index: 10;
}

.showcase-phone:hover .phone-frame-real {
    box-shadow: 0 30px 70px rgba(167, 139, 250, 0.2),
        0 12px 25px rgba(0, 0, 0, 0.3),
        inset 0 0 0 1.5px rgba(167, 139, 250, 0.3);
}

.phone-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 350px;
    height: 450px;
    background: radial-gradient(ellipse, rgba(167, 139, 250, 0.12) 0%, rgba(244, 114, 182, 0.06) 40%, transparent 70%);
    z-index: 0;
    animation: pulse-glow 4s ease infinite;
    pointer-events: none;
}

.about-content {
    padding: 20px 0;
}

.about-content .section-tag {
    display: inline-block;
    margin-bottom: 20px;
}

.about-content .section-title {
    text-align: left;
    font-size: var(--font-size-3xl);
    margin-bottom: 24px;
}

.about-desc {
    font-size: var(--font-size-base);
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 16px;
}

.about-list {
    list-style: none;
    margin-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.about-list li:hover {
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.about-list-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.about-list strong {
    display: block;
    font-weight: 600;
    margin-bottom: 4px;
}

.about-list span {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

/* ----------- Download Section ----------- */
.download {
    padding: var(--section-padding) 0;
    background: var(--gradient-bg);
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    max-width: 800px;
    margin: 0 auto;
}

.download-card {
    text-align: center;
    padding: 48px 36px;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.download-card::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, rgba(167, 139, 250, 0.03) 100%);
    pointer-events: none;
}

.download-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
    background: var(--bg-card-hover);
}

.download-card-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(167, 139, 250, 0.1);
    border-radius: var(--radius-lg);
    color: var(--accent-primary);
    transition: all var(--transition-base);
}

.download-card-icon.android {
    background: rgba(52, 211, 153, 0.1);
    color: #34d399;
}

.download-card:hover .download-card-icon {
    transform: scale(1.1) rotate(-3deg);
}

.download-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin-bottom: 8px;
}

.download-card>p {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.download-btn {
    width: 100%;
    justify-content: center;
    margin-bottom: 28px;
}

.android-btn {
    background: linear-gradient(135deg, #34d399 0%, #059669 100%);
    box-shadow: 0 4px 20px rgba(52, 211, 153, 0.3);
}

.android-btn:hover {
    box-shadow: 0 8px 30px rgba(52, 211, 153, 0.45);
}

.qr-code {
    display: flex;
    align-items: center;
    justify-content: center;
}

.qr-placeholder {
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    border: 2px dashed var(--border-subtle);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--text-muted);
    padding: 16px;
    line-height: 1.6;
}

.qr-code canvas,
.qr-code img {
    border-radius: var(--radius-md);
}

/* ----------- Footer ----------- */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--border-subtle);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 40px;
    border-bottom: 1px solid var(--border-subtle);
    margin-bottom: 28px;
}

.footer-logo {
    margin-bottom: 12px;
}

.footer-slogan {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    max-width: 280px;
}

.footer-links {
    display: flex;
    gap: 64px;
}

.footer-col {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col h4 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: 4px;
}

.footer-col a {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.footer-col a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    font-size: var(--font-size-xs);
    color: var(--text-muted);
}

.icp {
    font-size: var(--font-size-xs);
}

.icp a {
    color: var(--text-muted);
}

.icp a:hover {
    color: var(--accent-primary);
}

/* ----------- Responsive ----------- */
@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 48px;
    }

    .about-visual {
        order: -1;
    }

    .about-content .section-title {
        text-align: center;
    }

    .about-content .section-tag {
        text-align: center;
        display: block;
    }

    .about-desc {
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.5rem;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        padding: 20px 24px;
        background: var(--nav-bg);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-subtle);
        gap: 16px;
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .mobile-menu-btn.open span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.open span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.open span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-content {
        padding-top: 120px;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .stat-divider {
        width: 40px;
        height: 1px;
    }

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

    .download-cards {
        grid-template-columns: 1fr;
    }

    .footer-top {
        flex-direction: column;
        gap: 32px;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .app-showcase {
        width: 320px;
        height: 420px;
    }

    .phone-frame-real {
        width: 180px;
    }
}

@media (max-width: 480px) {
    :root {
        --section-padding: 60px;
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
    }

    .container {
        padding: 0 16px;
    }

    .feature-card {
        padding: 28px 20px;
    }

    .download-card {
        padding: 32px 20px;
    }

    .footer-links {
        gap: 32px;
    }
}