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

:root {
    --primary-color: #4CAF50;
    --primary-dark: #388E3C;
    --primary-light: #81C784;
    --secondary-color: #66BB6A;
    --accent-color: #2E7D32;
    --bg-color: #FFFFFF;
    --bg-light: #F5F5F5;
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #BDBDBD;
    --shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 8px 25px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-color);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-img {
    width: 36px;
    height: 36px;
    margin-right: 10px;
    border-radius: 8px;
    object-fit: contain;
}

.nav {
    display: flex;
    gap: 30px;
}

.nav a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.download-btn-mobile {
    display: none;
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 0 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--primary-light) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-text p {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 30px;
}

.hero-buttons {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    background: #FFFFFF;
    color: var(--primary-color);
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 16px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.download-btn i {
    margin-right: 8px;
}

.learn-btn {
    display: inline-flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.2);
    color: #FFFFFF;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    font-size: 16px;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

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

.learn-btn i {
    margin-right: 8px;
}

.stats {
    display: flex;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-num {
    display: block;
    font-size: 32px;
    font-weight: 700;
    color: #FFFFFF;
}

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

.version-info {
    display: flex;
    gap: 25px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.version, .update-date {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.8);
}

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

.app-preview {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.app-icon {
    width: 100px;
    height: 100px;
    background: #FFFFFF;
    border-radius: 25px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 30px;
    box-shadow: var(--shadow-hover);
}

.app-icon-img {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    object-fit: contain;
}

.app-screens {
    display: flex;
    gap: -20px;
    position: relative;
}

.screen {
    width: 200px;
    height: 350px;
    background: #FFFFFF;
    border-radius: 20px;
    padding: 15px;
    box-shadow: var(--shadow-hover);
}

.screen-1 {
    transform: translateY(-20px);
    z-index: 2;
}

.screen-2 {
    transform: translateY(10px) translateX(-30px);
    z-index: 1;
}

.screen-content {
    height: 100%;
    background: #F5F5F5;
    border-radius: 15px;
    padding: 10px;
}

.screen-header {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 15px;
    text-align: center;
}

.screen-body {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.input-box {
    width: 120px;
    height: 40px;
    background: #FFFFFF;
    border: 2px dashed var(--text-light);
    border-radius: 8px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--text-light);
}

.keyboard {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.keyboard span {
    width: 50px;
    height: 50px;
    background: #FFFFFF;
    border-radius: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.keyboard span i {
    font-size: 16px;
    color: var(--text-secondary);
}

.app-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 15px;
    background: #FFFFFF;
    border-radius: 10px;
    margin-bottom: 10px;
    width: 100%;
}

.app-item span:first-child {
    width: 40px;
    height: 40px;
    background: var(--primary-light);
    border-radius: 8px;
}

.app-item span:last-child {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
}

.wave svg {
    width: 100%;
    height: 60px;
}

.intro {
    padding: 80px 0;
    background: var(--bg-color);
}

.hot-codes {
    padding: 80px 0;
    background: linear-gradient(135deg, #F1F8E9 0%, #F5F5F5 100%);
    overflow: hidden;
}

.hot-codes .section-title {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.realtime-tag {
    font-size: 12px;
    color: #FFFFFF;
    background: var(--primary-color);
    padding: 3px 10px;
    border-radius: 50px;
    font-weight: 500;
    vertical-align: middle;
    margin-left: 6px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.8;
        transform: scale(1.05);
    }
}

.hot-codes-desc {
    text-align: center;
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.codes-marquee {
    display: flex;
    flex-direction: column;
    gap: 20px;
    position: relative;
}

.codes-marquee::before,
.codes-marquee::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 100px;
    z-index: 2;
    pointer-events: none;
}

.codes-marquee::before {
    left: 0;
    background: linear-gradient(90deg, #F1F8E9 0%, transparent 100%);
}

.codes-marquee::after {
    right: 0;
    background: linear-gradient(90deg, transparent 0%, #F1F8E9 100%);
}

.marquee-row {
    display: flex;
    overflow: hidden;
    width: 100%;
}

.marquee-content {
    display: flex;
    flex-shrink: 0;
    gap: 30px;
    padding-right: 30px;
    white-space: nowrap;
    animation: marqueeLeft 40s linear infinite;
}

.marquee-row-2 .marquee-content {
    animation: marqueeLeft 50s linear infinite;
}

.marquee-row:hover .marquee-content {
    animation-play-state: paused;
}

@keyframes marqueeLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

.code-item {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: #FFFFFF;
    border-radius: 50px;
    box-shadow: 0 2px 10px rgba(76, 175, 80, 0.1);
    transition: all 0.3s ease;
}

.code-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 18px rgba(76, 175, 80, 0.2);
}

.code-name {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
}

.code-key {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary-color);
    background: rgba(76, 175, 80, 0.1);
    padding: 4px 12px;
    border-radius: 6px;
    letter-spacing: 1px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-primary);
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-content p {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 40px;
}

.intro-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.intro-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.intro-feature i {
    font-size: 40px;
    color: var(--primary-color);
}

.intro-feature span {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.features {
    padding: 80px 0;
    background: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: #FFFFFF;
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0 auto 20px;
}

.feature-icon svg {
    width: 36px;
    height: 36px;
    color: #FFFFFF;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

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

.advantages {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--primary-dark) 100%);
}

.advantages .section-title {
    color: #FFFFFF;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.advantage-item {
    background: rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 20px;
    border-left: 4px solid #FFFFFF;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateX(10px);
}

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.2);
    margin-bottom: 10px;
}

.advantage-item h3 {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 15px;
    color: #FFFFFF;
}

.advantage-item p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.reviews {
    padding: 80px 0;
    background: var(--bg-color);
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
}

.review-card {
    background: #FFFFFF;
    padding: 30px;
    border-radius: 20px;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
}

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

.review-header {
    margin-bottom: 20px;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.reviewer-avatar {
    width: 45px;
    height: 45px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.reviewer-avatar i {
    font-size: 20px;
    color: #FFFFFF;
}

.reviewer-details {
    display: flex;
    flex-direction: column;
}

.reviewer-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.reviewer-rating {
    display: flex;
    gap: 2px;
}

.reviewer-rating i {
    font-size: 12px;
    color: #FFD700;
}

.review-content {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.review-date {
    font-size: 12px;
    color: var(--text-light);
}

.download {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 50%, var(--primary-light) 100%);
    text-align: center;
}

.download-content h2 {
    font-size: 36px;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 15px;
}

.download-content p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.download-platform-btn {
    display: flex;
    align-items: center;
    background: #FFFFFF;
    padding: 15px 30px;
    border-radius: 50px;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.download-platform-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-hover);
}

.download-platform-btn i {
    font-size: 32px;
    margin-right: 15px;
}

.android-btn i {
    color: #3DDC84;
}

.ios-btn i {
    color: #5AC8FA;
}

.tv-btn i {
    color: var(--primary-color);
}

.platform-info {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.platform-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

.platform-size {
    font-size: 12px;
    color: var(--text-secondary);
}

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

.download-tips a {
    color: #FFFFFF;
    font-weight: 600;
    text-decoration: underline;
}

.footer {
    padding: 50px 0;
    background: #212121;
    text-align: center;
}

.footer-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.footer-logo-img {
    width: 36px;
    height: 36px;
    margin-right: 10px;
    border-radius: 8px;
    object-fit: contain;
}

.footer-text {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 25px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-links a {
    text-decoration: none;
    color: var(--text-light);
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-copyright {
    font-size: 12px;
    color: #616161;
}

@media (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .advantages-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .nav {
        display: none;
    }
    
    .download-btn-mobile {
        display: flex;
        align-items: center;
        background: var(--primary-color);
        color: #FFFFFF;
        padding: 10px 20px;
        border-radius: 50px;
        border: none;
        font-weight: 600;
        font-size: 14px;
        cursor: pointer;
    }
    
    .download-btn-mobile i {
        margin-right: 8px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 32px;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .stats {
        justify-content: center;
    }
    
    .version-info {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .app-screens {
        display: none;
    }

    .hot-codes {
        padding: 60px 0;
    }

    .hot-codes .section-title {
        font-size: 26px;
    }

    .marquee-content {
        gap: 16px;
        padding-right: 16px;
        animation-duration: 30s;
    }

    .marquee-row-2 .marquee-content {
        animation-duration: 35s;
    }

    .code-item {
        padding: 10px 18px;
        gap: 10px;
    }

    .code-name {
        font-size: 13px;
    }

    .code-key {
        font-size: 14px;
        padding: 3px 10px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-platform-btn {
        width: 280px;
        justify-content: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .intro-features {
        gap: 20px;
    }
    
    .intro-feature {
        width: 45%;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 28px;
    }
    
    .download-btn, .learn-btn {
        padding: 12px 20px;
        font-size: 14px;
    }
    
    .stats {
        gap: 20px;
    }
    
    .stat-num {
        font-size: 24px;
    }
    
    .section-title {
        font-size: 28px;
    }
    
    .download-content h2 {
        font-size: 28px;
    }
    
    .feature-card {
        padding: 30px 20px;
    }
}