/* ============================================
   燃渊AI 官网样式表
   配色基于 App Logo：深黑背景 + 粉金渐变火焰
   ============================================ */

/* CSS Variables */
:root {
    --bg-primary: #080810;
    --bg-secondary: #0d0d1a;
    --bg-card: rgba(255, 255, 255, 0.04);
    --bg-card-hover: rgba(255, 255, 255, 0.07);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(240, 147, 251, 0.3);
    
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    
    --color-pink: #f093fb;
    --color-gold: #ffd700;
    --color-orange: #fbbf24;
    --color-rose: #ff6b9d;
    
    --gradient-primary: linear-gradient(135deg, #f093fb 0%, #fbbf24 50%, #ffd700 100%);
    --gradient-fire: linear-gradient(135deg, #ff6b9d 0%, #f093fb 40%, #fbbf24 70%, #ffd700 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(240, 147, 251, 0.15) 0%, transparent 70%);
    
    --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(240, 147, 251, 0.3);
    --shadow-gold: 0 0 40px rgba(255, 215, 0, 0.3);
    
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
    scroll-padding-top: 80px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

ul {
    list-style: none;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   Header / Navigation
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(8, 8, 16, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: var(--transition);
}

.header.scrolled {
    background: rgba(8, 8, 16, 0.95);
    border-bottom-color: var(--border-color);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo-link {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.2), rgba(255, 215, 0, 0.2));
    border: 1px solid var(--border-color);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-fire);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu ul {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 100px;
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-link.nav-download {
    background: var(--gradient-fire);
    color: #080810;
    font-weight: 600;
}

.nav-link.nav-download:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-gold);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

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

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

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

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    padding: 140px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: #f093fb;
    top: -150px;
    right: -100px;
    opacity: 0.15;
    animation: floatGlow1 8s ease-in-out infinite;
}

.glow-2 {
    width: 400px;
    height: 400px;
    background: #ffd700;
    bottom: -100px;
    left: -100px;
    opacity: 0.12;
    animation: floatGlow2 10s ease-in-out infinite;
}

.glow-3 {
    width: 300px;
    height: 300px;
    background: #ff6b9d;
    top: 50%;
    left: 30%;
    opacity: 0.08;
    animation: floatGlow3 12s ease-in-out infinite;
}

.glow-d1 {
    width: 400px;
    height: 400px;
    background: #f093fb;
    top: -200px;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0.2;
    animation: floatGlow1 8s ease-in-out infinite;
}

.glow-d2 {
    width: 300px;
    height: 300px;
    background: #ffd700;
    bottom: -150px;
    right: 10%;
    opacity: 0.15;
    animation: floatGlow2 10s ease-in-out infinite;
}

@keyframes floatGlow1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 30px); }
}

@keyframes floatGlow2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(40px, -20px); }
}

@keyframes floatGlow3 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-20px, -40px); }
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(240, 147, 251, 0.1);
    border: 1px solid rgba(240, 147, 251, 0.3);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--color-pink);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out;
}

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

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

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 16px;
    animation: fadeInUp 0.6s ease-out 0.1s backwards;
}

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

.hero-subtitle {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    animation: fadeInUp 0.6s ease-out 0.2s backwards;
}

.hero-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
    max-width: 520px;
    animation: fadeInUp 0.6s ease-out 0.3s backwards;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
    margin-bottom: 40px;
    animation: fadeInUp 0.6s ease-out 0.4s backwards;
}

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

.stat-num {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-fire);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

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

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease-out 0.5s backwards;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 100px;
    transition: var(--transition);
    cursor: pointer;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-fire);
    color: #080810;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(240, 147, 251, 0.4);
}

.btn-lg {
    padding: 16px 36px;
    font-size: 1.05rem;
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-ghost:hover {
    border-color: var(--color-pink);
    background: rgba(240, 147, 251, 0.1);
}

/* Version Info */
.version-info {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    animation: fadeInUp 0.6s ease-out 0.6s backwards;
}

.version-badge,
.version-date {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.version-badge strong,
.version-date strong {
    color: var(--color-gold);
    font-weight: 600;
}

/* Hero Screenshots */
.hero-screenshots {
    position: relative;
    animation: fadeInRight 0.8s ease-out 0.4s backwards;
}

.screenshot-gallery {
    position: relative;
    display: flex;
    gap: 16px;
    height: 500px;
    align-items: center;
    justify-content: center;
}

.screenshot-item {
    height: 100%;
    aspect-ratio: 9/16;
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition-slow);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    flex: none;
}

.screenshot-item.active {
    border-color: rgba(240, 147, 251, 0.4);
    box-shadow: 0 20px 60px rgba(240, 147, 251, 0.2);
}

.screenshot-item:not(.active) {
    height: 65%;
    filter: brightness(0.6);
}

.screenshot-item:hover:not(.active) {
    height: 75%;
    filter: brightness(0.8);
}

.screenshot-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: linear-gradient(135deg, #1a1a2e, #0d0d1a);
}

.screenshot-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 20px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

.screenshot-item.active .screenshot-overlay {
    transform: translateY(0);
    opacity: 1;
}

.screenshot-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.gallery-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 20px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    cursor: pointer;
    transition: var(--transition);
}

.dot.active {
    background: var(--gradient-fire);
    width: 30px;
    border-radius: 5px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: fadeInUp 1s ease-out 1s backwards;
}

.scroll-line {
    width: 2px;
    height: 40px;
    background: linear-gradient(to bottom, var(--color-pink), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; }
    50% { transform: scaleY(1); transform-origin: top; }
    51% { transform-origin: bottom; }
    100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   Section Common
   ============================================ */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 3px;
    color: var(--color-pink);
    margin-bottom: 16px;
    text-transform: uppercase;
}

.section-tag.light {
    color: rgba(255, 255, 255, 0.7);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    margin-bottom: 16px;
    background: var(--gradient-fire);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title.light {
    -webkit-text-fill-color: var(--text-primary);
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ============================================
   Features Section
   ============================================ */
.features {
    background: var(--bg-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-fire);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-slow);
}

.feature-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-4px);
    border-color: var(--border-hover);
}

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

.feature-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: #080810;
}

.feature-icon.icon-1 { background: linear-gradient(135deg, #f093fb, #fbbf24); }
.feature-icon.icon-2 { background: linear-gradient(135deg, #ff6b9d, #f093fb); }
.feature-icon.icon-3 { background: linear-gradient(135deg, #ffd700, #fbbf24); }
.feature-icon.icon-4 { background: linear-gradient(135deg, #fbbf24, #ff6b9d); }
.feature-icon.icon-5 { background: linear-gradient(135deg, #f093fb, #ffd700); }
.feature-icon.icon-6 { background: linear-gradient(135deg, #ff6b9d, #ffd700); }

.feature-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Why Choose Us
   ============================================ */
.why-us {
    background: var(--bg-primary);
}

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

.why-content .section-title {
    text-align: left;
}

.why-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 20px 0 40px;
}

.why-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.why-item {
    display: flex;
    gap: 20px;
    padding: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.why-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateX(4px);
}

.why-num {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-fire);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    min-width: 50px;
}

.why-item h4 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.why-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.why-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.why-img-placeholder {
    width: 65%;
    aspect-ratio: 9/16;
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.1), rgba(255, 215, 0, 0.05));
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.why-img-placeholder::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    background: var(--gradient-glow);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.why-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: relative;
    z-index: 1;
}

/* ============================================
   Reviews Section
   ============================================ */
.reviews {
    background: var(--bg-secondary);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    padding: 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.review-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.review-stars {
    color: var(--color-gold);
    font-size: 1.1rem;
    margin-bottom: 16px;
    letter-spacing: 2px;
}

.review-text {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.review-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #080810;
    font-size: 1.1rem;
}

.avatar-1 { background: linear-gradient(135deg, #ff6b9d, #fbbf24); }
.avatar-2 { background: linear-gradient(135deg, #667eea, #764ba2); }
.avatar-3 { background: linear-gradient(135deg, #f093fb, #f5576c); }
.avatar-4 { background: linear-gradient(135deg, #4facfe, #00f2fe); }
.avatar-5 { background: linear-gradient(135deg, #43e97b, #38f9d7); }
.avatar-6 { background: linear-gradient(135deg, #fa709a, #fee140); }

.user-info {
    display: flex;
    flex-direction: column;
}

.user-name {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}

.user-time {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ============================================
   FAQ Section
   ============================================ */
.faq {
    background: var(--bg-primary);
}

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

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

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    text-align: left;
    cursor: pointer;
    transition: var(--transition);
}

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

.faq-icon {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--color-pink);
    transition: var(--transition);
    flex-shrink: 0;
    margin-left: 16px;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding-bottom: 24px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* ============================================
   Download Section
   ============================================ */
.download-section {
    position: relative;
    overflow: hidden;
    background: var(--bg-secondary);
}

.download-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

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

.download-content {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.download-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-fire);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.download-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.download-features {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 40px;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.download-feature svg {
    color: var(--color-gold);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 20px 48px;
    font-size: 1.2rem;
    font-weight: 700;
    background: var(--gradient-fire);
    color: #080810;
    border-radius: 100px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    animation: btnGlow 2s ease-in-out infinite;
}

.btn-download:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 20px 60px rgba(240, 147, 251, 0.4);
}

@keyframes btnGlow {
    0%, 100% { box-shadow: 0 0 30px rgba(240, 147, 251, 0.3); }
    50% { box-shadow: 0 0 50px rgba(255, 215, 0, 0.5); }
}

.download-tip {
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
}

.footer-container {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(240, 147, 251, 0.2), rgba(255, 215, 0, 0.2));
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 700;
    background: var(--gradient-fire);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.footer-col h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.footer-col a {
    display: block;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 6px 0;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--color-pink);
    padding-left: 4px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* ============================================
   Back to Top
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    background: var(--gradient-fire);
    color: #080810;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

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

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

/* ============================================
   Animations
   ============================================ */
@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);
    }
}

/* Reveal Animation */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .hero-screenshots {
        order: -1;
    }

    .screenshot-gallery {
        height: 420px;
    }

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

    .why-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .why-image {
        max-width: 400px;
        margin: 0 auto;
    }

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

    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 70px 0;
    }

    .nav-menu {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(8, 8, 16, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-color);
        padding: 24px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

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

    .nav-menu ul {
        flex-direction: column;
        gap: 4px;
    }

    .nav-link {
        display: block;
        padding: 12px 16px;
        width: 100%;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        padding: 120px 0 60px;
    }

    .hero-stats {
        gap: 20px;
    }

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

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .screenshot-gallery {
        height: 420px;
        gap: 12px;
    }

    .screenshot-item {
        height: 100%;
    }

    .screenshot-item:not(.active) {
        height: 60%;
    }

    .screenshot-item:hover:not(.active) {
        height: 70%;
    }

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

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

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

    .download-features {
        flex-direction: column;
        align-items: stretch;
    }

    .download-feature {
        justify-content: center;
    }

    .version-info {
        flex-direction: column;
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-stats {
        flex-wrap: wrap;
        justify-content: center;
    }

    .stat-divider {
        display: none;
    }

    .why-list {
        gap: 16px;
    }

    .why-item {
        flex-direction: column;
        gap: 8px;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: rgba(240, 147, 251, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(240, 147, 251, 0.5);
}

/* Selection */
::selection {
    background: rgba(240, 147, 251, 0.3);
    color: var(--text-primary);
}