body {
    background-color: #100F14;
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

header {
    padding: 1.5rem 5%;
    border-bottom: 1px solid rgba(37, 129, 242, 0.2);
    backdrop-filter: blur(10px);
    background-color: rgba(16, 15, 20, 0.8);
    position: sticky;
    top: 0;
    z-index: 1000;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
    margin: 0;
    padding: 0;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 8px;
}

/* 移动端触摸优化 */
@media (max-width: 768px) {
    nav a {
        padding: 0.8rem 1.5rem;
        font-size: 1.1rem;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

nav a:hover {
    background: rgba(37, 129, 242, 0.1);
    color: #6D51EB;
}

main {
    padding: 0;
}

.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 6rem 5%;
    min-height: 85vh;
    position: relative;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 300;
}

.hero-image {
    flex: 1;
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.floating-orb {
    position: absolute;
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, rgba(109, 81, 235, 0.4), rgba(37, 129, 242, 0.1));
    filter: blur(40px);
    animation: float 6s ease-in-out infinite;
}

.orb-2 {
    width: 200px;
    height: 200px;
    background: radial-gradient(circle at 60% 60%, rgba(109, 81, 235, 0.3), rgba(37, 129, 242, 0.05));
    filter: blur(30px);
    animation-delay: 2s;
    top: 20%;
    left: 20%;
}

.orb-3 {
    width: 250px;
    height: 250px;
    background: radial-gradient(circle at 40% 70%, rgba(109, 81, 235, 0.2), rgba(37, 129, 242, 0.03));
    filter: blur(35px);
    animation-delay: 4s;
    top: 60%;
    right: 20%;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) scale(1);
    }
    50% {
        transform: translateY(-20px) scale(1.05);
    }
}

.cta-button {
    background: linear-gradient(to right, #6D51EB, #2581F2);
    color: #ffffff;
    padding: 1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(109, 81, 235, 0.3);
}

.cta-button.secondary {
    background: transparent;
    border: 2px solid #6D51EB;
    color: #6D51EB;
}

.cta-button.secondary:hover {
    background: rgba(109, 81, 235, 0.1);
}

.features {
    padding: 6rem 5%;
    background: rgba(16, 15, 20, 0.5);
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2.5rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: rgba(109, 81, 235, 0.3);
    box-shadow: 0 20px 40px rgba(109, 81, 235, 0.1);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.feature-icon i {
    font-size: 1.8rem;
    color: white;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: white;
}

.feature-card p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    font-size: 1rem;
}

.testimonial {
    padding: 6rem 5%;
    text-align: center;
}

.testimonial h2 {
    font-size: 2.5rem;
    margin-bottom: 4rem;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.testimonial-content {
    max-width: 800px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 3rem;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.quote-icon {
    position: absolute;
    top: -25px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 50px;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quote-icon i {
    color: white;
    font-size: 1.2rem;
}

.testimonial-text {
    font-size: 1.3rem;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    font-style: italic;
    margin-bottom: 1.5rem;
}

.testimonial-author {
    color: #6D51EB;
    font-weight: 600;
    font-size: 1.1rem;
}

.cta-section {
    padding: 6rem 5%;
    text-align: center;
    background: linear-gradient(135deg, rgba(109, 81, 235, 0.1), rgba(37, 129, 242, 0.05));
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.cta-section p {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section .cta-button {
    margin: 0 1rem;
}

footer {
    background: rgba(16, 15, 20, 0.9);
    padding: 3rem 5% 1.5rem;
    border-top: 1px solid rgba(37, 129, 242, 0.2);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 2rem;
}

.footer-logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #6D51EB;
}

.footer-social {
    display: flex;
    gap: 1.5rem;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: all 0.3s ease;
}

.footer-social a:hover {
    background: linear-gradient(to right, #6D51EB, #2581F2);
    transform: translateY(-3px);
}

.copyright {
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.legal-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.legal-content h1, .legal-content h2 {
    background: linear-gradient(to right, #6D51EB, #2581F2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 2rem;
}

.legal-content h1 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.legal-content h2 {
    font-size: 1.8rem;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

.legal-content p, .legal-content li {
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1.1rem;
}

.legal-content ul {
    padding-left: 2rem;
}

.legal-content li {
    margin-bottom: 0.5rem;
}

@media (max-width: 768px) {
    nav ul {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: rgba(16, 15, 20, 0.95);
        text-align: center;
        padding: 2rem 0;
        gap: 1.5rem;
        z-index: 1001;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }

    nav ul.active {
        display: flex;
        animation: slideDown 0.3s ease-out;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .hero {
        flex-direction: column;
        text-align: center;
        padding: 3rem 5%;
        min-height: auto;
        gap: 2rem;
    }

    .hero h1 {
        font-size: 2.2rem;
        line-height: 1.3;
        margin-bottom: 1.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.5;
        margin-bottom: 2rem;
        padding: 0 1rem;
    }

    .hero-image {
        height: 250px;
        margin-top: 2rem;
        width: 100%;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .floating-orb {
        width: 180px;
        height: 180px;
        filter: blur(30px);
    }

    .orb-2 {
        width: 140px;
        height: 140px;
        filter: blur(25px);
    }

    .orb-3 {
        width: 160px;
        height: 160px;
        filter: blur(28px);
    }

    .features {
        padding: 4rem 5%;
    }

    .features h2 {
        font-size: 2rem;
        margin-bottom: 2.5rem;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        padding: 2rem;
        margin: 0 0.5rem;
    }

    .feature-card h3 {
        font-size: 1.3rem;
    }

    .feature-card p {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .testimonial-content {
        padding: 2rem;
    }

    .cta-section {
        padding: 4rem 5%;
    }

    .cta-section h2 {
        font-size: 2rem;
        margin-bottom: 1.2rem;
    }

    .cta-section p {
        font-size: 1rem;
        margin-bottom: 2rem;
        padding: 0 1rem;
    }

    .cta-section .cta-button {
        margin: 0.5rem auto;
        display: block;
        width: 90%;
        max-width: 300px;
        padding: 1rem 2rem;
        font-size: 1rem;
        min-height: 50px;
    }

    .cta-button {
        min-height: 50px;
        touch-action: manipulation;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: 2rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .menu-toggle {
        display: block;
        cursor: pointer;
        padding: 12px;
        margin-right: -12px;
        min-height: 44px;
        min-width: 44px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
    }

    .menu-toggle .bar {
        display: block;
        width: 25px;
        height: 3px;
        margin: 3px auto;
        transition: all 0.3s ease-in-out;
        background-color: #ffffff;
        border-radius: 2px;
    }

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

    .menu-toggle.active .bar:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active .bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
}

.menu-toggle {
    display: none;
}

@media (max-width: 480px) {
    header {
        padding: 1rem 5%;
    }

    .logo {
        font-size: 1.5rem;
    }

    .hero h1 {
        font-size: 1.8rem;
        padding: 0 0.5rem;
    }

    .hero-subtitle {
        font-size: 0.95rem;
        padding: 0 0.5rem;
    }

    .features h2,
    .testimonial h2,
    .cta-section h2 {
        font-size: 1.8rem;
    }

    .feature-card {
        padding: 1.5rem;
        margin: 0;
    }

    .feature-icon {
        width: 60px;
        height: 60px;
        margin-bottom: 1.2rem;
    }

    .feature-icon i {
        font-size: 1.5rem;
    }

    .testimonial {
        padding: 3rem 5%;
    }

    .testimonial-content {
        padding: 1.5rem;
    }

    .testimonial-text {
        font-size: 1.1rem;
        line-height: 1.6;
    }

    footer {
        padding: 2rem 5% 1rem;
    }

    .footer-content {
        gap: 1.5rem;
    }

    .footer-links {
        gap: 0.8rem;
    }

    .footer-social a {
        width: 36px;
        height: 36px;
    }

    /* 防止移动端缩放 */
    input, select, textarea, button {
        font-size: 16px;
    }
}