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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f5f3ff 0%, #ede9fe 50%, #fce7f3 100%);
    min-height: 100vh;
}

:root {
    --primary-color: #6B21A8;
    --primary-light: #A855F7;
    --primary-dark: #4C1D95;
    --secondary-color: #EC4899;
    --secondary-light: #F472B6;
    --accent-color: #8B5CF6;
    --bg-gradient-start: #6B21A8;
    --bg-gradient-end: #EC4899;
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --white: #FFFFFF;
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --card-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(107, 33, 168, 0.1);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

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

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    transition: width 0.3s ease;
}

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

.download-btn-nav {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white) !important;
    padding: 10px 25px;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.download-btn-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(107, 33, 168, 0.4);
}

.download-btn-nav::after {
    display: none;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translateY(8px);
}

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

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translateY(-8px);
}

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 100px 20px 60px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 30%, rgba(107, 33, 168, 0.15) 0%, transparent 50%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: -20%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle at 70% 70%, rgba(236, 72, 153, 0.12) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: left;
}

.hero-logo {
    margin-bottom: 20px;
}

.hero-logo-img {
    width: 80px;
    height: 80px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 10px 30px rgba(107, 33, 168, 0.3);
}

.hero-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.hero-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    line-height: 1.8;
}

.hero-info {
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-info .version,
.hero-info .update-date {
    font-size: 14px;
    color: var(--text-secondary);
    background: rgba(107, 33, 168, 0.08);
    padding: 8px 16px;
    border-radius: 20px;
}

.hero-download-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    text-decoration: none;
    padding: 18px 45px;
    border-radius: 35px;
    font-size: 18px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(107, 33, 168, 0.4);
}

.hero-download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(107, 33, 168, 0.5);
}

.hero-images {
    position: relative;
    height: 500px;
}

.hero-img-card {
    position: absolute;
    width: 220px;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    animation: float 6s ease-in-out infinite;
}

.hero-img-card-2 {
    left: 50%;
    top: 20%;
    animation-delay: 2s;
}

.hero-img-card-3 {
    left: 30%;
    top: 50%;
    animation-delay: 4s;
}

.hero-img {
    width: 100%;
    height: 380px;
    object-fit: cover;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-20px) rotate(3deg);
    }
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%23ffffff' fill-opacity='1' d='M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
    background-size: cover;
    background-repeat: no-repeat;
}

.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 20px;
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.feature-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(107, 33, 168, 0.05);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(107, 33, 168, 0.1), rgba(236, 72, 153, 0.1));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 30px;
}

.feature-icon svg {
    width: 40px;
    height: 40px;
}

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

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

.advantages {
    background: rgba(107, 33, 168, 0.03);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.advantage-item {
    display: flex;
    gap: 25px;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 35px;
    transition: all 0.3s ease;
}

.advantage-item:hover {
    transform: translateX(5px);
    box-shadow: var(--card-shadow);
}

.advantage-number {
    font-size: 48px;
    font-weight: 700;
    color: rgba(107, 33, 168, 0.1);
    line-height: 1;
    min-width: 60px;
}

.advantage-content {
    flex: 1;
}

.advantage-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.advantage-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

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

.review-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 35px;
    transition: all 0.3s ease;
}

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

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

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

.review-avatar svg {
    width: 25px;
    height: 25px;
}

.review-name {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 16px;
}

.review-rating {
    display: flex;
    gap: 2px;
    margin-top: 5px;
}

.review-rating svg {
    width: 16px;
    height: 16px;
    color: #FBBF24;
}

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

.download {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 100px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: -50%;
    width: 200%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

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

.download-title {
    font-size: 36px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 15px;
}

.download-desc {
    font-size: 18px;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 30px;
}

.download-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.download-info .version,
.download-info .update-date {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.9);
    background: rgba(255, 255, 255, 0.15);
    padding: 8px 20px;
    border-radius: 20px;
}

.download-btn {
    display: inline-block;
    background: var(--white);
    color: var(--primary-color);
    text-decoration: none;
    padding: 20px 60px;
    border-radius: 40px;
    font-size: 20px;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.3);
}

.download-tips {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 20px;
}

.footer {
    background: var(--text-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: 50px 20px;
    text-align: center;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
}

.footer-logo-text {
    font-size: 20px;
    font-weight: 700;
    color: var(--white);
}

.footer-desc {
    font-size: 14px;
    margin-bottom: 10px;
}

.footer-copyright {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.5);
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

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

    .hero-info {
        justify-content: center;
    }

    .hero-images {
        height: 400px;
    }

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

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

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

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 20px;
        gap: 20px;
        transform: translateY(-150%);
        opacity: 0;
        transition: all 0.3s ease;
        box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-desc {
        font-size: 15px;
    }

    .hero-images {
        display: none;
    }

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

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

    .section-title {
        font-size: 28px;
    }

    .download-title {
        font-size: 28px;
    }

    .download-btn {
        padding: 16px 45px;
        font-size: 18px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-download-btn {
        padding: 15px 35px;
        font-size: 16px;
    }

    .feature-card {
        padding: 30px 20px;
    }

    .advantage-item {
        padding: 25px;
    }

    .review-card {
        padding: 25px;
    }

    .download {
        padding: 60px 20px;
    }
}