/* 高级重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* RuJing应用色彩系统 */
    --primary: #7986A8;
    --primary-dark: #064351;
    --primary-light: #79DCDA;
    --secondary: #F3DE8A;
    --accent: #4A90E2;
    --warning: #F3DE8A;
    
    /* 功能模块颜色 */
    --focus-color: #0C3026;
    --relax-color: #064351;
    --sleep-color: #2d1b69;
    
    /* 功能模块强调色 */
    --focus-accent: #F3DE8A;
    --relax-accent: #79DCDA;
    --sleep-accent: #4A90E2;
    
    /* 中性色系 */
    --dark: #111320;
    --darker: #030108;
    --light: #E8E4D9;
    --lighter: #FFFFFF;
    --gray: #D8D8D8;
    --gray-light: #666666;
    
    /* 渐变色系 */
    --gradient-primary: linear-gradient(135deg, #7986A8 0%, #064351 100%);
    --gradient-secondary: linear-gradient(135deg, #F3DE8A 0%, #79DCDA 100%);
    --gradient-accent: linear-gradient(135deg, #4A90E2 0%, #79DCDA 100%);
    --gradient-dark: linear-gradient(135deg, #111320 0%, #030108 100%);
    --gradient-hero: linear-gradient(135deg, #7986A8 0%, #064351 50%, #030108 100%);
    
    /* 阴影系统 */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.5);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.8);
    
    /* 动画时长 */
    --transition-fast: 0.2s;
    --transition-normal: 0.3s;
    --transition-slow: 0.5s;
    
    /* 边框半径 */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 50px;
    
    /* 字体系统 */
    --font-primary: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--light);
    background: var(--darker);
    overflow-x: hidden;
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 粒子背景 */
#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    z-index: -1;
    background: var(--gradient-hero);
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(17, 19, 32, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(121, 134, 168, 0.3);
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    font-weight: 700;
}

.logo-image {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-lg);
    object-fit: cover;
}


.nav-logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--gray);
    font-weight: 500;
    transition: color var(--transition-normal);
    position: relative;
}

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

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

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

/* 语言切换 */
.language-switcher {
    margin-left: 1rem;
    padding-left: 1rem;
    border-left: 1px solid rgba(121, 134, 168, 0.3);
    position: relative;
    z-index: 1002;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(121, 134, 168, 0.3);
    color: var(--gray);
    padding: 0.5rem 0.75rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 60px;
    justify-content: center;
}

.lang-btn:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
    background: rgba(121, 134, 168, 0.1);
}

.lang-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.lang-btn i {
    font-size: 1rem;
}

.lang-btn .fa-chevron-down {
    font-size: 0.75rem;
    transition: transform var(--transition-normal);
}

.lang-btn:hover .fa-chevron-down {
    transform: rotate(180deg);
}

.lang-text {
    font-weight: 600;
}

/* 语言下拉菜单 */
.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.5rem;
    background: rgba(17, 19, 32, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(121, 134, 168, 0.3);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition-normal);
    min-width: 200px;
}

@media (max-width: 768px) {
    .language-dropdown {
        top: auto;
        bottom: 100px;
        right: 20px;
        left: 20px;
        min-width: auto;
    }
}

.language-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-content {
    padding: 0.5rem;
}

.lang-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: transparent;
    border: none;
    border-radius: var(--radius-md);
    color: var(--light);
    cursor: pointer;
    transition: all var(--transition-normal);
    text-align: left;
}

.lang-option:hover {
    background: rgba(121, 134, 168, 0.2);
    color: var(--primary-light);
}

.lang-option.active {
    background: var(--primary);
    color: white;
}

.lang-option i {
    font-size: 1rem;
    color: var(--primary-light);
    width: 20px;
    text-align: center;
}

.lang-option.active i {
    color: white;
}

.lang-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.lang-name {
    font-size: 0.875rem;
    font-weight: 500;
}

.lang-native {
    font-size: 0.75rem;
    opacity: 0.7;
}

/* 移动端菜单 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--light);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

/* 主页横幅 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background: transparent;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    background: rgba(121, 134, 168, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(121, 134, 168, 0.3);
    color: var(--light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease-out;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: var(--light);
}

.title-line {
    display: block;
    margin-bottom: 0.5rem;
    animation: fadeInUp 0.8s ease-out;
}

.title-line:nth-child(2) {
    animation-delay: 0.2s;
}

.highlight {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: rgba(232, 228, 217, 0.9);
    margin-bottom: 2rem;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

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

.btn-secondary {
    background: rgba(121, 134, 168, 0.2);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(121, 134, 168, 0.3);
    color: var(--light);
}

.btn-secondary:hover {
    background: rgba(121, 134, 168, 0.3);
    transform: translateY(-2px);
}

/* 统计数据 */
.hero-stats {
    display: flex;
    gap: 3rem;
    animation: fadeInUp 0.8s ease-out 0.8s both;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(232, 228, 217, 0.8);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* 手机模型 */
.hero-visual {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.phone-mockup {
    width: 300px;
    height: 600px;
    margin: 0 auto;
    position: relative;
}

.phone-frame {
    width: 100%;
    height: 100%;
    background: var(--dark);
    border-radius: 2.5rem;
    padding: 0.75rem;
    box-shadow: var(--shadow-2xl);
    position: relative;
    border: 3px solid var(--primary);
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--darker);
    border-radius: 2rem;
    overflow: hidden;
    position: relative;
}

.phone-content {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 浮动卡片 */
.floating-card {
    position: absolute;
    background: rgba(17, 19, 32, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(121, 134, 168, 0.3);
    border-radius: var(--radius-lg);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-xl);
    animation: float 4s ease-in-out infinite;
}

.floating-card i {
    font-size: 1.5rem;
    color: var(--primary-light);
}

.floating-card span {
    font-weight: 600;
    color: var(--light);
}

.floating-card-1 {
    top: 20%;
    right: -50px;
    animation-delay: 0s;
}

.floating-card-2 {
    top: 50%;
    right: -80px;
    animation-delay: 1s;
}

.floating-card-3 {
    bottom: 20%;
    right: -30px;
    animation-delay: 2s;
}

/* 特性展示 */
.features-showcase {
    padding: 6rem 0;
    background: var(--dark);
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: var(--gradient-primary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--light);
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: rgba(17, 19, 32, 0.8);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(121, 134, 168, 0.2);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--light);
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.feature-tags span {
    background: rgba(121, 134, 168, 0.2);
    color: var(--primary-light);
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
}

/* 深入功能展示 */
.features-detail {
    padding: 6rem 0;
    background: var(--darker);
}

.feature-block {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 6rem;
}

.feature-block.reverse {
    direction: rtl;
}

.feature-block.reverse .feature-content {
    direction: ltr;
}

.feature-content {
    position: relative;
}

.feature-number {
    font-size: 4rem;
    font-weight: 800;
    color: var(--primary-light);
    opacity: 0.2;
    position: absolute;
    top: -20px;
    left: -20px;
    font-family: var(--font-display);
}

.feature-content h3 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--light);
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.feature-content p {
    font-size: 1.125rem;
    color: var(--gray);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--gray);
}

.feature-list i {
    color: var(--accent);
    font-size: 1.25rem;
}

.feature-visual {
    position: relative;
}

.device-mockup {
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    position: relative;
}

.device-screen {
    width: 100%;
    height: auto;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-2xl);
    border: 3px solid var(--primary);
}

/* 技术展示 */
.tech-showcase {
    padding: 6rem 0;
    background: var(--darker);
    color: white;
}

.tech-showcase .section-title {
    color: white;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.tech-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: 2rem;
    transition: all var(--transition-normal);
}

.tech-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.tech-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
}

.tech-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.tech-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* 用户评价 */
.testimonials {
    padding: 6rem 0;
    background: var(--lighter);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.testimonial-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.testimonial-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.user-avatar {
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
}

.user-info h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 0.25rem;
}

.rating {
    display: flex;
    gap: 0.25rem;
}

.rating i {
    color: var(--warning);
    font-size: 0.875rem;
}

.testimonial-text {
    font-style: italic;
    color: var(--gray);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.testimonial-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.875rem;
}

.user-role {
    color: var(--primary);
    font-weight: 500;
}

.date {
    color: var(--gray);
}

/* 下载区域 */
.download {
    padding: 6rem 0;
    background: var(--gradient-dark);
    color: var(--light);
}

.download-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.download-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    font-family: var(--font-display);
}

.download-description {
    font-size: 1.125rem;
    color: rgba(232, 228, 217, 0.9);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.download-features {
    margin-bottom: 2rem;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: rgba(232, 228, 217, 0.9);
}

.download-feature i {
    color: var(--accent);
}

.store-button {
    display: inline-block;
    transition: transform var(--transition-normal);
}

.store-button:hover {
    transform: scale(1.05);
}

.store-badge {
    height: 60px;
    border-radius: var(--radius-lg);
}

.store-badge-large {
    height: 80px;
    border-radius: var(--radius-lg);
}

.store-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
}

.qr-code {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-xl);
    padding: 2rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.qr-image {
    width: 150px;
    height: 150px;
    border-radius: var(--radius-lg);
    background: white;
    padding: 0.5rem;
}

.qr-text {
    color: rgba(232, 228, 217, 0.9);
    font-weight: 500;
}

/* 页脚 */
.footer {
    background: var(--darker);
    color: var(--light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.footer-logo i {
    font-size: 1.5rem;
    color: var(--primary);
}

.footer-logo h3 {
    font-size: 1.5rem;
    font-weight: 700;
}

.footer-section p {
    color: rgba(232, 228, 217, 0.8);
    margin-bottom: 1rem;
    line-height: 1.6;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--light);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: rgba(232, 228, 217, 0.8);
    text-decoration: none;
    transition: color var(--transition-normal);
}

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

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(121, 134, 168, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(232, 228, 217, 0.8);
    transition: all var(--transition-normal);
}

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

.footer-bottom {
    border-top: 1px solid rgba(121, 134, 168, 0.2);
    padding-top: 2rem;
    text-align: center;
    color: rgba(232, 228, 217, 0.6);
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 1000;
}

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

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

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

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

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

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background: var(--dark);
        flex-direction: column;
        justify-content: flex-start;
        padding: 5rem 2rem 2rem;
        transition: right var(--transition-normal);
        box-shadow: var(--shadow-2xl);
    }

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

    .mobile-menu-toggle {
        display: flex;
        z-index: 1001;
    }

    .language-switcher {
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        margin-top: 2rem;
        justify-content: center;
    }

    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

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

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

    .hero-stats {
        justify-content: center;
        gap: 2rem;
    }

    .phone-mockup {
        width: 250px;
        height: 500px;
    }

    .floating-card {
        display: none;
    }

    .feature-block,
    .download-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-block.reverse {
        direction: ltr;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .nav-container {
        padding: 1rem;
    }

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

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

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

    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
    }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-light);
}

/* 高级视觉效果 */
.glass-morphism {
    background: rgba(121, 134, 168, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(121, 134, 168, 0.2);
}

.neumorphism {
    background: var(--dark);
    box-shadow: 20px 20px 60px rgba(0, 0, 0, 0.5), -20px -20px 60px rgba(121, 134, 168, 0.1);
}

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

/* 功能特色样式 */
.feature-focus {
    background: var(--focus-color);
    border-color: var(--focus-accent);
}

.feature-focus .feature-icon {
    background: var(--focus-accent);
    color: var(--focus-color);
}

.feature-relax {
    background: var(--relax-color);
    border-color: var(--relax-accent);
}

.feature-relax .feature-icon {
    background: var(--relax-accent);
    color: var(--relax-color);
}

.feature-sleep {
    background: var(--sleep-color);
    border-color: var(--sleep-accent);
}

.feature-sleep .feature-icon {
    background: var(--sleep-accent);
    color: var(--sleep-color);
}