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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(-45deg, #f6f8fc, #e9ecf5, #f0f2f8, #e5e9f2);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    color: #333;
    min-height: 100vh;
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    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='%236366f1' fill-opacity='0.05'%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");
    pointer-events: none;
    z-index: 0;
}

.floating-shapes {
    position: fixed;
    width: 100vw;
    height: 100vh;
    top: 0;
    left: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    background: linear-gradient(45deg, rgba(99, 102, 241, 0.05), rgba(139, 92, 246, 0.05));
    border-radius: 50%;
    animation: floatShape 20s linear infinite;
}

.shape:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
}

.shape:nth-child(2) {
    width: 500px;
    height: 500px;
    top: 50%;
    right: -250px;
    animation-delay: -5s;
    animation-duration: 25s;
}

.shape:nth-child(3) {
    width: 400px;
    height: 400px;
    bottom: -200px;
    left: 30%;
    animation-delay: -10s;
    animation-duration: 30s;
}

.shape:nth-child(4) {
    width: 200px;
    height: 200px;
    top: 20%;
    left: 10%;
    animation-delay: -15s;
    animation-duration: 22s;
}

.shape:nth-child(5) {
    width: 350px;
    height: 350px;
    bottom: 20%;
    right: 10%;
    animation-delay: -7s;
    animation-duration: 28s;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

@keyframes floatShape {
    from {
        transform: rotate(0deg) translate(50px) rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) translate(100px) rotate(-180deg) scale(1.1);
    }
    to {
        transform: rotate(360deg) translate(50px) rotate(-360deg) scale(1);
    }
}

.container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 2rem;
}

.content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 4rem;
}

.left-section {
    flex: 1;
    text-align: left;
    padding-right: 2rem;
}

.right-section {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 700px;
    position: relative;
}

.app-preview {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
}

.app-preview:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.hero-section {
    margin-bottom: 2.5rem;
}

.animate-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards;
}

.main-title {
    font-size: 2.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #1f2937;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.sub-title {
    font-size: 2.2rem;
    color: #4b5563;
    margin-bottom: 1.5rem;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards 0.4s;
}

.features {
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.feature-text {
    font-size: 1.2rem;
    color: #4b5563;
    margin-bottom: 2rem;
    max-width: 600px;
}

.feature-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.feature-highlights span {
    font-size: 1rem;
    color: #6366f1;
    font-weight: 500;
    padding: 0.5rem 1.5rem;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 20px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards 0.8s;
}

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

.stat-number {
    font-size: 2.2rem;
    font-weight: 800;
    color: #6366f1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 1rem;
    color: #6b7280;
}

.cta-button {
    display: inline-block;
    padding: 1rem 3rem;
    font-size: 1.25rem;
    font-weight: 600;
    text-decoration: none;
    color: #ffffff;
    background: linear-gradient(45deg, #6366f1, #8b5cf6);
    border-radius: 30px;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards 1s;
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 1200px) {
    .content {
        gap: 2rem;
    }
    
    .animate-title {
        font-size: 3rem;
    }
    
    .main-title {
        font-size: 2.4rem;
    }
    
    .sub-title {
        font-size: 2rem;
    }
}

@media (max-width: 1024px) {
    .content {
        flex-direction: column;
        gap: 3rem;
    }
    
    .left-section {
        padding-right: 0;
        text-align: center;
    }
    
    .stats {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .stat-item {
        text-align: center;
    }
    
    .feature-text {
        margin-left: auto;
        margin-right: auto;
    }
    
    .feature-highlights {
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1.5rem;
    }
    
    .animate-title {
        font-size: 2.5rem;
    }
    
    .main-title {
        font-size: 2rem;
    }
    
    .sub-title {
        font-size: 1.6rem;
    }
    
    .feature-text {
        font-size: 1.1rem;
    }
    
    .stats {
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .cta-button {
        padding: 0.8rem 2rem;
        font-size: 1.1rem;
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .animate-title {
        font-size: 2.2rem;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .sub-title {
        font-size: 1.4rem;
    }
}

.background {
    position: fixed;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 0;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: linear-gradient(45deg, rgba(155, 89, 182, 0.1), rgba(142, 68, 173, 0.1));
    animation: float 20s infinite linear;
}

.circle:nth-child(1) {
    width: 300px;
    height: 300px;
    top: -150px;
    left: -150px;
}

.circle:nth-child(2) {
    width: 500px;
    height: 500px;
    top: 50%;
    right: -250px;
    animation-delay: -5s;
}

.circle:nth-child(3) {
    width: 400px;
    height: 400px;
    bottom: -200px;
    left: 30%;
    animation-delay: -10s;
}

@keyframes float {
    from {
        transform: rotate(0deg) translate(50px) rotate(0deg);
    }
    to {
        transform: rotate(360deg) translate(50px) rotate(-360deg);
    }
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 2rem 0;
    opacity: 0;
    transform: translateY(-20px);
    animation: fadeInUp 0.8s ease forwards 0.6s;
}

.download-button {
    display: flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
}

.download-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-color: #8e44ad;
}

.download-icon {
    margin-right: 1rem;
}

.download-icon img {
    width: 24px;
    height: 24px;
}

.download-text {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.download-text span {
    font-size: 1rem;
    font-weight: 500;
}

.download-text .sub-text {
    font-size: 0.9rem;
    color: #666;
}

@media (max-width: 768px) {
    .download-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .download-button {
        width: 80%;
        justify-content: center;
    }
}

.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 100;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
    transition: all 0.3s ease;
}

.site-header:hover {
    background: rgba(255, 255, 255, 0.98);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.8rem 2rem;
}

.nav-content {
    display: flex;
    justify-content: center;
    gap: 3rem;
}

.nav-link {
    color: #4b5563;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: #6366f1;
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.nav-link:hover {
    color: #6366f1;
    background: rgba(99, 102, 241, 0.05);
}

.nav-link:hover::after {
    width: 80%;
}

@media (max-width: 768px) {
    .nav-container {
        padding: 0.6rem 1rem;
    }

    .nav-content {
        gap: 1rem;
        flex-wrap: wrap;
    }

    .nav-link {
        font-size: 0.95rem;
        padding: 0.4rem 0.8rem;
    }
}

main {
    padding-top: 4rem;
}

.section-container {
    padding: 5rem 2rem;
    position: relative;
}

.section-container:nth-child(even) {
    background: rgba(255, 255, 255, 0.5);
}

.section-title {
    font-size: 2.5rem;
    color: #1f2937;
    text-align: center;
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.feature-card h3 {
    color: #1f2937;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: #6b7280;
    line-height: 1.6;
}

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

.advantage-card {
    text-align: center;
    padding: 2rem;
}

.advantage-card h3 {
    color: #1f2937;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.advantage-card p {
    color: #6b7280;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.case-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.case-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 1.5rem;
    color: #6366f1;
}

.case-icon .icon {
    width: 100%;
    height: 100%;
}

.case-card h3 {
    color: #1f2937;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.case-card p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.case-features {
    list-style: none;
    padding: 0;
}

.case-features li {
    color: #4b5563;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.case-features li::before {
    content: "•";
    color: #6366f1;
    position: absolute;
    left: 0;
    font-size: 1.2em;
}

@media (max-width: 768px) {
    .cases-grid {
        grid-template-columns: 1fr;
    }
    
    .case-card {
        text-align: center;
    }
    
    .case-icon {
        margin: 0 auto 1.5rem;
    }
    
    .case-features li {
        text-align: left;
    }
}

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

.step-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    position: relative;
}

.step-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    background: #6366f1;
    color: white;
    border-radius: 50%;
    margin-bottom: 1rem;
}

.step-card h3 {
    color: #1f2937;
    margin-bottom: 1rem;
}

.step-card p {
    color: #6b7280;
}

.site-footer {
    background: #1f2937;
    color: white;
    padding: 4rem 2rem 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1rem;
}

.footer-section p {
    color: #9ca3af;
    margin-bottom: 0.5rem;
}

.footer-link {
    color: #9ca3af;
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    color: #9ca3af;
}

/* 产品截图部分 */
.screenshots-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.screenshot-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.screenshot-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 1.5rem;
    padding: 1rem;
    border-radius: 16px;
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.screenshot-card:hover .feature-icon {
    background: #6366f1;
    color: white;
    transform: scale(1.1);
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.feature-content h3 {
    color: #1f2937;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-content p {
    color: #6b7280;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    width: 100%;
    text-align: left;
}

.feature-list li {
    color: #4b5563;
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.feature-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #6366f1;
    font-weight: bold;
}

@media (max-width: 768px) {
    .screenshots-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshot-card {
        padding: 1.5rem;
    }
    
    .feature-icon {
        width: 56px;
        height: 56px;
    }
    
    .feature-content h3 {
        font-size: 1.25rem;
    }
}

/* 用户评价部分 */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.testimonial-card {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.testimonial-content {
    margin-bottom: 1.5rem;
    position: relative;
}

.testimonial-content p {
    color: #4b5563;
    font-style: italic;
    line-height: 1.6;
}

.testimonial-content::before {
    content: '"';
    position: absolute;
    top: -20px;
    left: -10px;
    font-size: 4rem;
    color: #6366f1;
    opacity: 0.2;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.1);
    color: #6366f1;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.testimonial-card:hover .author-avatar {
    background: #6366f1;
    color: white;
    transform: scale(1.1);
}

.author-avatar svg {
    width: 100%;
    height: 100%;
}

.author-info h4 {
    color: #1f2937;
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.author-info p {
    color: #6b7280;
    font-size: 0.9rem;
}

/* FAQ部分 */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.faq-item {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.faq-item h3 {
    color: #1f2937;
    font-size: 1.25rem;
    margin-bottom: 1rem;
    position: relative;
    padding-left: 1.5rem;
}

.faq-item h3::before {
    content: "Q:";
    position: absolute;
    left: 0;
    color: #6366f1;
}

.faq-item p {
    color: #6b7280;
    line-height: 1.6;
}

@media (max-width: 768px) {
    .screenshots-grid,
    .testimonials-grid,
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .screenshot-card {
        padding: 1.5rem;
    }
    
    .feature-icon {
        width: 56px;
        height: 56px;
    }
    
    .feature-content h3 {
        font-size: 1.25rem;
    }
}