@font-face {
    font-family: 'Helvetica';
    src: url('../fonts/Helvetica.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Charter';
    src: url('../fonts/Charter.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

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

html {
    font-size: 62.5%;
    scroll-behavior: smooth;
}

body {
    font-family: Helvetica, Charter, PingFang SC, Microsoft YaHei, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
    color: #333;
    line-height: 1.5;
    background: #fff;
}

.notification-bar {
    background: #000;
    padding: 10px 20px;
    text-align: center;
    color: #fff;
    font-size: 14px;
}

.notification-bar a {
    color: #5B8FF9;
    text-decoration: none;
    margin-left: 8px;
}

nav {
    background: linear-gradient(135deg, #6B46C1 0%, #9B4DCA 50%, #C77DDB 100%);
    padding: 0 40px;
    display: flex;
    align-items: center;
    height: 70px;
}

nav .nav-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

nav .logo-icon {
    width: 40px;
    height: 40px;
}

nav .logo-text {
    font-size: 24px;
    font-weight: bold;
    color: #fff;
}

nav .nav-links {
    display: flex;
    gap: 36px;
    list-style: none;
}

nav .nav-links a {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-size: 15px;
    transition: color 0.3s ease;
}

nav .nav-links a:hover {
    color: #fff;
}

nav .login-btn {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 10px 24px;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

nav .login-btn:hover {
    background: rgba(255, 255, 255, 0.3);
}

nav .mobile-menu-btn {
    display: none;
}

.hero-section {
    background: linear-gradient(135deg, #6B46C1 0%, #9B4DCA 30%, #D6336C 70%, #EC4899 100%);
    padding: 60px 40px 80px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 20%;
    right: 5%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: 20%;
    left: 10%;
    width: 120px;
    height: 120px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
}

.hero-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hero-left {
    flex: 1;
    z-index: 1;
}

.hero-left h1 {
    font-size: 48px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 24px;
    line-height: 1.3;
}

.hero-cert-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 40px;
}

.hero-cert-badge img {
    width: 36px;
    height: 36px;
}

.hero-cert-badge span {
    color: #fff;
    font-size: 16px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-bottom: 48px;
}

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

.stat-circle {
    width: 100px;
    height: 100px;
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
}

.stat-value {
    font-size: 32px;
    font-weight: bold;
    color: #fff;
}

.stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.btn-primary {
    background: #fff;
    color: #6B46C1;
    border: none;
    padding: 16px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 16px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.25);
}

.hero-right {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    position: relative;
    z-index: 1;
}

.device-mockup {
    position: relative;
    width: 500px;
}

.phone-mockup {
    position: absolute;
    left: 0;
    bottom: -20px;
    width: 180px;
    z-index: 2;
}

.laptop-mockup {
    width: 450px;
}

.features-section {
    padding: 80px 40px;
    background: #fff;
}

.features-section .section-title {
    text-align: center;
    font-size: 36px;
    font-weight: bold;
    color: #333;
    margin-bottom: 60px;
}

.features-grid {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: #f8f9fa;
    padding: 32px;
    border-radius: 16px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.feature-card .badge {
    background: linear-gradient(135deg, #6B46C1, #EC4899);
    color: #fff;
    padding: 6px 16px;
    border-radius: 12px;
    font-size: 12px;
    display: inline-block;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: bold;
    color: #333;
    margin-bottom: 12px;
}

.feature-card p {
    font-size: 14px;
    color: #666;
    line-height: 1.7;
}

.popular-apps-section {
    padding: 80px 40px;
    background: #f8f9fa;
}

.popular-apps-section .section-title {
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 48px;
}

.apps-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.app-item {
    width: 80px;
    height: 80px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid #eee;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #666;
    transition: all 0.3s ease;
}

.app-item:hover {
    transform: scale(1.1);
    border-color: #6B46C1;
    color: #6B46C1;
}

.user-reviews-section {
    padding: 80px 40px;
    background: #fff;
}

.user-reviews-section .section-title {
    text-align: center;
    font-size: 32px;
    font-weight: bold;
    color: #333;
    margin-bottom: 48px;
}

.reviews-container {
    max-width: 900px;
    margin: 0 auto;
}

.review-card {
    background: #f8f9fa;
    padding: 32px;
    border-radius: 20px;
    margin-bottom: 24px;
}

.review-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, #6B46C1, #EC4899);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: bold;
    font-size: 18px;
}

.review-info {
    flex: 1;
}

.review-name {
    font-weight: bold;
    color: #333;
    font-size: 15px;
}

.review-title {
    font-size: 13px;
    color: #666;
    margin-top: 2px;
}

.review-text {
    font-size: 14px;
    color: #555;
    line-height: 1.7;
}

.free-trial-section {
    padding: 80px 40px;
    background: linear-gradient(135deg, #6B46C1 0%, #9B4DCA 50%, #EC4899 100%);
    text-align: center;
}

.free-trial-section .section-title {
    font-size: 36px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 48px;
}

.trial-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 16px;
}

.trial-btn {
    background: #fff;
    color: #6B46C1;
    border: none;
    padding: 16px 40px;
    border-radius: 30px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.trial-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(0, 0, 0, 0.3);
}

footer {
    padding: 60px 40px;
    background: #1a1a2e;
    color: #fff;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 48px;
}

.footer-brand {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 14px;
    color: #999;
    line-height: 1.6;
}

.footer-section-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #999;
    font-size: 14px;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 24px;
    margin-top: 48px;
    text-align: center;
    color: #666;
    font-size: 14px;
}

@media (max-width: 1024px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    
    .hero-left {
        margin-bottom: 40px;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-right {
        justify-content: center;
    }
    
    .device-mockup {
        width: 400px;
    }
    
    .phone-mockup {
        width: 140px;
        left: -20px;
    }
    
    .laptop-mockup {
        width: 360px;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    nav {
        padding: 0 20px;
    }
    
    nav .nav-links {
        display: none;
    }
    
    nav .mobile-menu-btn {
        display: block;
        font-size: 24px;
        background: none;
        border: none;
        color: #fff;
        cursor: pointer;
    }
    
    .hero-section {
        padding: 40px 20px 60px;
    }
    
    .hero-left h1 {
        font-size: 32px;
    }
    
    .hero-stats {
        gap: 32px;
    }
    
    .stat-circle {
        width: 80px;
        height: 80px;
    }
    
    .stat-value {
        font-size: 24px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .device-mockup {
        width: 300px;
    }
    
    .phone-mockup {
        width: 100px;
        left: -10px;
    }
    
    .laptop-mockup {
        width: 260px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

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