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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --success: #10b981;
    --warning: #f59e0b;
    --text: #1f2937;
    --text-light: #6b7280;
    --text-muted: #9ca3af;
    --bg: #ffffff;
    --bg-light: #f9fafb;
    --bg-dark: #111827;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
    --gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    --gradient-hover: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    text-decoration: none;
    white-space: nowrap;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 4px 14px 0 rgb(99 102 241 / 0.39);
}

.btn-primary:hover {
    background: var(--gradient-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgb(99 102 241 / 0.5);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
}

.btn-ghost:hover {
    background: var(--bg-light);
}

.btn-large {
    padding: 14px 28px;
    font-size: 16px;
}

.btn-download {
    background: var(--gradient);
    color: white;
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 6px;
}

.btn-download:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px 0 rgb(99 102 241 / 0.4);
}

/* ===== Navbar ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.navbar.scrolled {
    border-bottom-color: var(--border-light);
    box-shadow: var(--shadow-sm);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon svg {
    width: 36px;
    height: 36px;
}

.logo-icon img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: block;
    object-fit: cover;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s ease;
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 2px;
    background: var(--gradient);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    gap: 8px;
}

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

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: all 0.3s ease;
}

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

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 120px 24px 80px;
    overflow: hidden;
}

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

.gradient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 20s infinite ease-in-out;
}

.orb1 {
    width: 500px;
    height: 500px;
    background: #6366f1;
    top: -100px;
    right: -100px;
    animation-delay: 0s;
}

.orb2 {
    width: 400px;
    height: 400px;
    background: #8b5cf6;
    bottom: -50px;
    left: -100px;
    animation-delay: -7s;
}

.orb3 {
    width: 300px;
    height: 300px;
    background: #ec4899;
    top: 40%;
    left: 50%;
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -30px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.grid-overlay {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(99, 102, 241, 0.1);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    font-weight: 800;
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease 0.1s both;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    animation: fadeInUp 0.6s ease 0.2s both;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    animation: fadeInUp 0.6s ease 0.3s both;
}

.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    animation: fadeInUp 0.6s ease 0.4s both;
}

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

.stat-value {
    display: block;
    font-size: 1.5rem;
    font-weight: 800;
    white-space: nowrap;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--border);
}

.hero-image {
    position: relative;
    z-index: 2;
    margin-top: 40px;
}

.floating-card {
    position: relative;
    width: min(90vw, 800px);
    animation: floatCard 6s ease-in-out infinite;
}

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

.card-glow {
    position: absolute;
    inset: -20px;
    background: var(--gradient);
    border-radius: 24px;
    filter: blur(40px);
    opacity: 0.3;
    z-index: -1;
}

.hero-preview {
    width: 100%;
    border-radius: 16px;
    box-shadow: var(--shadow-2xl);
    border: 1px solid var(--border-light);
}

.float-badge {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: white;
    border-radius: 999px;
    box-shadow: var(--shadow-lg);
    font-size: 13px;
    font-weight: 500;
    animation: floatBadge 4s ease-in-out infinite;
    z-index: 10;
}

.float-badge-1 {
    top: -45px;
    left: -45px;
    animation-delay: 0s;
}

.float-badge-2 {
    bottom: -45px;
    right: -45px;
    animation-delay: -2s;
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 12px;
    z-index: 2;
}

.mouse {
    width: 26px;
    height: 42px;
    border: 2px solid var(--text-muted);
    border-radius: 13px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    animation: scrollWheel 1.5s infinite;
}

@keyframes scrollWheel {
    0% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(12px); }
}

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

.section-label {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* ===== Features Section ===== */
.features {
    padding: 100px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    position: relative;
    padding: 32px;
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
}

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

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

.feature-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    margin-bottom: 20px;
    transition: transform 0.3s ease;
}

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

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.icon-purple {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
}

.icon-blue {
    background: rgba(59, 130, 246, 0.1);
    color: #3b82f6;
}

.icon-green {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.icon-orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.icon-pink {
    background: rgba(236, 72, 153, 0.1);
    color: var(--accent);
}

.icon-teal {
    background: rgba(20, 184, 166, 0.1);
    color: #14b8a6;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
    line-height: 1.7;
}

.feature-hover-effect {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.03) 0%, rgba(139, 92, 246, 0.03) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

/* ===== Screenshots Section ===== */
.screenshots {
    padding: 100px 0;
    background: white;
}

.screenshots-container {
    position: relative;
    display: flex;
    align-items: center;
    gap: 16px;
}

.screenshots-viewport {
    flex: 1;
    overflow: hidden;
    border-radius: 20px;
}

.screenshots-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.screenshot-slide {
    min-width: 100%;
    padding: 20px;
}

.screenshot-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--border-light);
}

.screenshot-browser {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-light);
    border-bottom: 1px solid var(--border-light);
}

.browser-dots {
    display: flex;
    gap: 6px;
}

.browser-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.browser-dots .red { background: #ef4444; }
.browser-dots .yellow { background: #f59e0b; }
.browser-dots .green { background: #10b981; }

.browser-url {
    flex: 1;
    text-align: center;
    font-size: 13px;
    color: var(--text-muted);
    font-family: 'Monaco', 'Menlo', monospace;
}

.screenshot-img {
    width: 100%;
    display: block;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.screenshot-caption {
    padding: 24px;
    text-align: center;
}

.screenshot-caption h4 {
    font-size: 1.25rem;
    margin-bottom: 8px;
}

.screenshot-caption p {
    color: var(--text-light);
}

.carousel-btn {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    flex-shrink: 0;
    z-index: 10;
}

.carousel-btn:hover {
    background: var(--gradient);
    color: white;
    border-color: transparent;
    transform: scale(1.1);
}

.carousel-btn svg {
    width: 20px;
    height: 20px;
}

.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 32px;
}

.indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--border);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background: var(--gradient);
    width: 28px;
    border-radius: 5px;
}

/* ===== Download Section ===== */
.download {
    padding: 100px 0;
    background: var(--bg-light);
}

.download-card {
    position: relative;
    background: white;
    border-radius: 24px;
    overflow: hidden;
    padding: 64px;
    box-shadow: var(--shadow-xl);
}

.download-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
    opacity: 0.05;
}

.download-gradient {
    position: absolute;
    width: 150%;
    height: 150%;
    top: -25%;
    left: -25%;
    background: var(--gradient);
    transform: rotate(45deg);
}

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

.download-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin: 40px 0;
}

.download-option {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border: 2px solid var(--border-light);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.download-option:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
    transform: translateY(-2px);
}

.download-option.selected {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
}

.platform-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 10px;
    box-shadow: var(--shadow-sm);
    flex-shrink: 0;
}

.platform-icon svg {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.platform-info {
    flex: 1;
}

.platform-info h4 {
    font-size: 16px;
    margin-bottom: 4px;
}

.platform-info p {
    font-size: 13px;
    color: var(--text-muted);
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 32px;
    padding-top: 32px;
    border-top: 1px solid var(--border-light);
}

.info-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 14px;
}

.info-item svg {
    color: var(--success);
}

/* ===== FAQ Section ===== */
.faq {
    padding: 100px 0;
    background: white;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-light);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    color: var(--text);
    font-family: inherit;
    text-align: left;
    transition: color 0.2s ease;
}

.faq-question:hover {
    color: var(--primary);
}

.faq-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 300px;
    padding-bottom: 24px;
}

.faq-answer p {
    color: var(--text-light);
    line-height: 1.7;
}

/* ===== Footer ===== */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: 64px 0 32px;
}

.footer-main {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand .logo-text {
    color: white;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    margin-top: 16px;
    font-size: 14px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-size: 14px;
    margin-bottom: 16px;
    color: white;
}

.footer-col a {
    display: block;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    padding: 6px 0;
    font-size: 14px;
    transition: color 0.2s ease;
}

.footer-col a:hover {
    text-decoration: underline;
}

.footer-bottom a {
    color: inherit;
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 13px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.7);
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--gradient);
    color: white;
    transform: translateY(-2px);
}

/* ===== Modal ===== */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s ease;
}

/* 微信二维码弹窗 */
.wx-qrcode {
    width: 220px;
    height: 220px;
    margin: 0 auto 14px;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: #fff;
}

.wx-qrcode img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 8px;
    object-fit: contain;
}

.wx-tip {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: 20px;
    padding: 48px;
    max-width: 440px;
    width: 100%;
    text-align: center;
    animation: slideUp 0.3s ease;
}

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

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-light);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--border);
}

.modal-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 50%;
    margin: 0 auto 24px;
}

.modal-icon svg {
    width: 36px;
    height: 36px;
    color: var(--primary);
}

.modal-content h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--text-light);
    margin-bottom: 24px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--border-light);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 24px;
}

.progress-fill {
    height: 100%;
    background: var(--gradient);
    border-radius: 4px;
    width: 0;
    transition: width 0.3s ease;
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-menu,
    .nav-actions {
        display: none;
    }

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

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        padding: 20px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
    }

    .hero {
        padding: 100px 20px 60px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .hero-stats {
        gap: 24px;
    }

    .stat-divider {
        display: none;
    }

    .features,
    .screenshots,
    .download,
    .faq {
        padding: 60px 0;
    }

    .download-card {
        padding: 32px 24px;
    }

    .download-info {
        flex-direction: column;
        gap: 16px;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 32px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
    }

    .float-badge {
        font-size: 11px;
        padding: 6px 10px;
    }

    .float-badge-1 {
        top: -30px;
        left: -10px;
    }

    .float-badge-2 {
        bottom: -30px;
        right: -10px;
    }
}

@media (max-width: 480px) {
    .footer-links {
        grid-template-columns: 1fr;
    }

    .hero-title {
        font-size: 2rem;
    }

    .float-badge-1 {
        top: -25px;
        left: 0;
    }

    .float-badge-2 {
        bottom: -25px;
        right: 0;
    }
}

/* ===== User Menu ===== */
.user-menu {
    position: relative;
    display: flex;
    align-items: center;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.user-info:hover {
    background: rgba(99, 102, 241, 0.12);
    transform: translateY(-1px);
}

.user-avatar {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    border-radius: 50%;
    color: white;
    flex-shrink: 0;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text);
}

.user-arrow {
    width: 16px;
    height: 16px;
    color: var(--text-light);
    transition: transform 0.3s ease;
}

.user-menu.active .user-arrow {
    transform: rotate(180deg);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: white;
    border: 1px solid var(--border-light);
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 100;
}

.user-menu.active .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: var(--text);
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 8px;
    margin: 4px;
}

.user-dropdown-item:hover {
    background: var(--bg-light);
    color: var(--primary);
}

.user-dropdown-item svg {
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.user-dropdown-divider {
    height: 1px;
    background: var(--border-light);
    margin: 8px 4px;
}

@media (max-width: 768px) {
    .user-info {
        padding: 6px 12px;
    }
    
    .user-name {
        font-size: 13px;
    }
    
    .user-dropdown {
        right: -8px;
    }
}