/* ========== 基础变量与重置 ========== */
:root {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --primary-light: #a78bfa;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --dark: #0f0a1a;
    --dark-2: #1a1025;
    --dark-3: #2d1b4e;
    --light: #f8f7ff;
    --gray: #9ca3af;
    --white: #ffffff;
    --gradient-1: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 50%, #4c1d95 100%);
    --gradient-2: linear-gradient(135deg, #f59e0b 0%, #d97706 50%, #b45309 100%);
    --gradient-dark: linear-gradient(180deg, #0f0a1a 0%, #1a1025 50%, #2d1b4e 100%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 8px 40px rgba(139, 92, 246, 0.3);
    --shadow-glow: 0 0 30px rgba(139, 92, 246, 0.5);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
    background: var(--dark);
    color: var(--light);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

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

ul {
    list-style: none;
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(15, 10, 26, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(139, 92, 246, 0.15);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.5);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

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

.logo-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    object-fit: cover;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-menu a {
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--white);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

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

.nav-btn {
    background: var(--gradient-1) !important;
    color: var(--white) !important;
    padding: 10px 24px !important;
    border-radius: 25px !important;
    font-weight: 600 !important;
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.4);
    transition: var(--transition) !important;
}

.nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.6) !important;
}

.nav-btn::after {
    display: none !important;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 28px;
    height: 2.5px;
    background: var(--white);
    border-radius: 3px;
    transition: var(--transition);
}

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

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

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

/* ========== Hero Banner ========== */
.hero {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 700px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        180deg,
        rgba(15, 10, 26, 0.3) 0%,
        rgba(15, 10, 26, 0.6) 50%,
        rgba(15, 10, 26, 0.9) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
    max-width: 800px;
    animation: fadeInUp 1s ease-out;
}

.hero-badge {
    display: inline-block;
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.4);
    color: var(--primary-light);
    padding: 8px 20px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    background: linear-gradient(135deg, #c4b5fd 0%, #8b5cf6 30%, #a78bfa 60%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
    line-height: 1.2;
    text-shadow: none;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    color: var(--primary-light);
    margin-bottom: 16px;
    font-weight: 500;
}

.hero-desc {
    font-size: clamp(0.9rem, 1.5vw, 1.1rem);
    color: var(--gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

/* 二维码弹窗包裹层 */
.btn-qr-wrapper {
    position: relative;
    display: inline-block;
}

.btn-primary {
    display: inline-block;
    background: var(--gradient-1);
    color: var(--white);
    padding: 16px 40px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 6px 25px rgba(139, 92, 246, 0.5);
    transition: var(--transition);
    letter-spacing: 1px;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(139, 92, 246, 0.7);
}

/* 首屏二维码弹窗 */
.qr-popup {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(30, 20, 50, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius-lg);
    padding: 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    z-index: 100;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
    width: 200px;
}

.qr-popup::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid rgba(139, 92, 246, 0.3);
}

.btn-qr-wrapper:hover .qr-popup {
    opacity: 1;
    visibility: visible;
}

.qr-popup-inner {
    text-align: center;
}

.qr-popup-inner canvas,
.qr-popup-inner img {
    display: block;
    margin: 0 auto;
}

.qr-popup-inner p {
    color: var(--gray);
    font-size: 0.8rem;
    margin-top: 10px;
}

/* 移动端隐藏二维码弹窗 */
@media (max-width: 768px) {
    .qr-popup {
        display: none;
    }
}

.btn-secondary {
    display: inline-block;
    background: transparent;
    color: var(--white);
    padding: 16px 40px;
    border-radius: 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: var(--transition);
}

.btn-secondary:hover {
    border-color: var(--primary);
    background: rgba(139, 92, 246, 0.1);
    transform: translateY(-3px);
}

.hero-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

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

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 900;
    background: var(--gradient-2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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


/* ========== 通用区域样式 ========== */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-title {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 800;
    text-align: center;
    margin-bottom: 12px;
    background: linear-gradient(135deg, var(--white) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    font-size: 1.05rem;
    margin-bottom: 48px;
}

/* ========== 游戏特色 ========== */
.features {
    padding: 100px 0;
    background: var(--dark-2);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: rgba(45, 27, 78, 0.4);
    border: 1px solid rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-1);
    opacity: 0;
    transition: var(--transition);
    z-index: 0;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.feature-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
    color: var(--white);
}

.feature-card p {
    color: var(--gray);
    font-size: 0.9rem;
    position: relative;
    z-index: 1;
    line-height: 1.6;
}

/* ========== 宣传图 ========== */
.promo-gallery {
    padding: 100px 0;
}

.promo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.promo-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    aspect-ratio: 3/4;
    transition: var(--transition);
}

.promo-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.promo-item:hover img {
    transform: scale(1.08);
}

.promo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 20px;
    background: linear-gradient(transparent, rgba(15, 10, 26, 0.9));
    transition: var(--transition);
}

.promo-overlay span {
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
}

.promo-item:hover .promo-overlay {
    background: linear-gradient(transparent, rgba(139, 92, 246, 0.8));
}

/* ========== 游戏截图 ========== */
.gallery {
    padding: 100px 0;
    background: var(--dark-2);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.gallery-item img {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.gallery-item:hover img {
    transform: scale(1.05);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 16px;
    background: linear-gradient(transparent, rgba(15, 10, 26, 0.9));
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* ========== 福利专区 ========== */
.rewards {
    padding: 100px 0;
    position: relative;
    background: var(--gradient-dark);
}

.rewards-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
}

.rewards-title,
.rewards-subtitle {
    position: relative;
    z-index: 1;
}

.rewards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    position: relative;
    z-index: 1;
}

.reward-card {
    background: rgba(45, 27, 78, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.15);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.reward-card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
}

.reward-card:hover {
    transform: translateY(-6px);
    border-color: rgba(139, 92, 246, 0.4);
    box-shadow: var(--shadow-lg);
}

.reward-card:hover::after {
    opacity: 1;
}

.reward-card.highlight {
    border-color: rgba(245, 158, 11, 0.4);
    background: rgba(45, 27, 78, 0.6);
    box-shadow: 0 4px 20px rgba(245, 158, 11, 0.15);
}

.reward-card.highlight:hover {
    border-color: rgba(245, 158, 11, 0.6);
    box-shadow: 0 8px 35px rgba(245, 158, 11, 0.3);
}

.reward-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.reward-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 6px;
    position: relative;
    z-index: 1;
}

.reward-card p {
    color: var(--gray);
    font-size: 0.85rem;
    position: relative;
    z-index: 1;
}

.rewards-note {
    text-align: center;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

.rewards-note p {
    display: inline-block;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.2);
    padding: 12px 28px;
    border-radius: 25px;
    color: var(--primary-light);
    font-weight: 500;
    font-size: 0.95rem;
}

/* ========== 视频展示 ========== */
.videos {
    padding: 100px 0;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 32px;
}

.video-card {
    background: rgba(45, 27, 78, 0.3);
    border: 1px solid rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.video-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(139, 92, 246, 0.3);
}

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

.video-info {
    padding: 20px 24px;
}

.video-info h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.video-info p {
    color: var(--gray);
    font-size: 0.85rem;
}

/* ========== 游戏信息 ========== */
.game-info {
    padding: 60px 0;
    background: var(--dark-2);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
}

.info-item {
    background: rgba(45, 27, 78, 0.4);
    border: 1px solid rgba(139, 92, 246, 0.1);
    border-radius: var(--radius-md);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.info-item:hover {
    border-color: rgba(139, 92, 246, 0.3);
    box-shadow: var(--shadow-md);
}

.info-label {
    display: block;
    font-size: 0.8rem;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.info-value {
    display: block;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--white);
}

/* ========== 下载区域 ========== */
.download {
    padding: 100px 0;
    position: relative;
    background: var(--gradient-dark);
}

.download-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at 50% 0%, rgba(139, 92, 246, 0.1) 0%, transparent 60%);
}

.download-title,
.download-subtitle {
    position: relative;
    z-index: 1;
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    position: relative;
    z-index: 1;
    margin-bottom: 48px;
}

.download-card {
    background: rgba(45, 27, 78, 0.5);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: var(--radius-lg);
    padding: 40px 28px;
    text-align: center;
    transition: var(--transition);
}

.download-card:hover {
    transform: translateY(-8px);
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: var(--shadow-lg);
    background: rgba(45, 27, 78, 0.7);
}

.download-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.download-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.download-card p {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.btn-download {
    display: inline-block;
    background: var(--gradient-1);
    color: var(--white);
    padding: 12px 32px;
    border-radius: 25px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(139, 92, 246, 0.3);
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(139, 92, 246, 0.5);
}

.download-qr {
    text-align: center;
    position: relative;
    z-index: 1;
}

.qr-placeholder {
    display: inline-block;
    background: var(--white);
    padding: 16px;
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
    box-shadow: var(--shadow-md);
    line-height: 0;
}

.qr-placeholder canvas,
.qr-placeholder img {
    display: block;
    border-radius: var(--radius-sm);
}

.download-qr p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* ========== 页脚 ========== */
.footer {
    background: var(--dark);
    padding: 60px 0 30px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.footer-content {
    text-align: center;
}

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.footer-logo span {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--white);
}

.footer-desc {
    color: var(--gray);
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.footer-tagline {
    color: var(--primary-light);
    font-size: 0.9rem;
    margin-bottom: 24px;
    font-style: italic;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 28px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--gray);
    font-size: 0.9rem;
    transition: var(--transition);
}

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

/* 友情链接 */
.friend-links {
    margin-bottom: 24px;
    padding-top: 20px;
    border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.friend-links-title {
    display: block;
    color: var(--gray);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.friend-links-list {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.friend-links-list a {
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.85rem;
    transition: var(--transition);
}

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

.copyright {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.8rem;
}

/* ========== 返回顶部按钮 ========== */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-1);
    color: var(--white);
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    z-index: 999;
    box-shadow: var(--shadow-glow);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    pointer-events: none;
}

.back-to-top.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(139, 92, 246, 0.7);
}

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

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* 滚动动画 */
.fade-in-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 响应式设计 ========== */
@media (max-width: 1024px) {
    .videos-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        max-width: 320px;
        height: 100vh;
        background: rgba(15, 10, 26, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        gap: 28px;
        transition: right 0.4s ease;
        border-left: 1px solid rgba(139, 92, 246, 0.15);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        font-size: 1.2rem;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        min-height: 600px;
    }

    .hero-stats {
        gap: 24px;
    }

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

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

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

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

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

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

    .section-title {
        font-size: 1.6rem;
    }

    .features, .promo-gallery, .gallery, .rewards, .videos, .download {
        padding: 60px 0;
    }

    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 42px;
        height: 42px;
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .nav-container {
        height: 60px;
    }

    .logo-icon {
        width: 32px;
        height: 32px;
    }

    .logo-text {
        font-size: 1rem;
    }

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

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero-desc {
        font-size: 0.8rem;
    }

    .btn-primary, .btn-secondary {
        padding: 12px 28px;
        font-size: 0.95rem;
        width: 100%;
        text-align: center;
    }

    .btn-qr-wrapper {
        display: block;
        width: 100%;
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

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

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

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