/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.2) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

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

/* 头部样式 */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 20px;
}

.logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 1001;
}

.logo-subtitle {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}

.logo h1 {
    font-size: 24px;
    color: #2c3e50;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.nav {
    position: relative;
}

.nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav ul li {
    margin-left: 30px;
}

.nav ul li a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 20px;
}

.nav ul li a:hover {
    color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-btn .menu-line {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #2c3e50;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.hero {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    position: relative;
    overflow: hidden;
    color: #2c3e50;
    min-height: 600px;
    display: flex;
    align-items: center;
    text-align: center;
    margin-top: 80px;
    padding: 40px 0;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    animation: gradientShift 15s ease infinite;
}

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

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero-text {
    flex: 1;
    text-align: left;
    max-width: 600px;
}

.hero-image {
    flex: 1;
    max-width: 400px;
    height: auto;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

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

.hero-image:hover img {
    transform: perspective(1000px) rotateY(0deg);
}

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

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    max-width: 800px;
    line-height: 1.2;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
    max-width: 600px;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    justify-content: flex-start;
    gap: 30px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 15px 25px;
    border-radius: 15px;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: transform 0.3s ease;
    min-width: 150px;
}

.stat-item:hover {
    transform: translateY(-5px);
}

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.stat-label {
    font-size: 18px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(132, 250, 176, 0.3);
    min-width: 200px;
}

.cta-button:hover {
    background: linear-gradient(135deg, #8fd3f4 0%, #84fab0 100%);
    box-shadow: 0 6px 20px rgba(132, 250, 176, 0.4);
}

/* 功能特点区域 */
.features {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(132, 250, 176, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(143, 211, 244, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #2c3e50;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #84fab0, #8fd3f4);
    margin: 20px auto 0;
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: #666;
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.feature-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    min-height: 400px;
}

.feature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 25px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.feature-item:hover .feature-icon {
    transform: scale(1.1);
}

.feature-item h3 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
}

.feature-item p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.feature-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    width: 100%;
}

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

.feature-stat-number {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.feature-stat-label {
    font-size: 14px;
    color: #666;
}

.feature-details {
    width: 100%;
    text-align: left;
    margin-top: auto;
}

.feature-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-details li {
    color: #666;
    font-size: 14px;
    padding: 8px 0;
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 20px;
}

.feature-details li::before {
    content: '✓';
    color: #84fab0;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 使用教程区域 */
.tutorial {
    padding: 100px 0;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    position: relative;
}

.tutorial::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(132, 250, 176, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(143, 211, 244, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.tutorial-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.tutorial-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: 20px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: 300px;
}

.tutorial-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.tutorial-step {
    position: absolute;
    top: -20px;
    left: 40px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    box-shadow: 0 4px 15px rgba(132, 250, 176, 0.3);
    z-index: 2;
}

.tutorial-item h3 {
    margin: 20px 0 15px;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
}

.tutorial-item p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.tutorial-details {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.tutorial-detail-item {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.tutorial-detail-icon {
    width: 24px;
    height: 24px;
    margin-right: 10px;
    color: #84fab0;
}

.tutorial-detail-text {
    color: #666;
    font-size: 14px;
}

/* 下载区域 */
.download {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
    position: relative;
}

.download::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(132, 250, 176, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(143, 211, 244, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.download-item {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 400px;
}

.download-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.download-icon {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.download-item:hover .download-icon {
    transform: scale(1.1);
}

.download-item h3 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.download-item p {
    color: #666;
    font-size: 16px;
    margin-bottom: 25px;
}

.version-info {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    text-align: left;
    margin-bottom: 30px;
}

.version-info li {
    display: flex;
    align-items: center;
    margin: 12px 0;
    color: #666;
    font-size: 14px;
}

.version-info li::before {
    content: '✓';
    color: #84fab0;
    margin-right: 10px;
    font-weight: bold;
}

.download-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(132, 250, 176, 0.3);
    margin-top: auto;
    width: 100%;
    max-width: 200px;
    text-align: center;
}

.download-button:hover {
    background: linear-gradient(135deg, #8fd3f4 0%, #84fab0 100%);
    box-shadow: 0 6px 20px rgba(132, 250, 176, 0.4);
    transform: translateY(-2px);
}

.download-button::after {
    content: '↓';
    margin-left: 8px;
    font-size: 18px;
}

.download-features {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    width: 100%;
}

.download-feature {
    display: flex;
    align-items: center;
    margin: 10px 0;
    color: #666;
    font-size: 14px;
}

.download-feature-icon {
    margin-right: 10px;
    color: #84fab0;
}

/* FAQ区域 */
.faq {
    padding: 100px 0;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    position: relative;
}

.faq::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(132, 250, 176, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(143, 211, 244, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.faq-category {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.faq-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.faq-category-title {
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid rgba(132, 250, 176, 0.3);
    position: relative;
}

.faq-category-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, #84fab0, #8fd3f4);
}

.faq-item {
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.faq-item:last-child {
    margin-bottom: 0;
}

.faq-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateX(5px);
}

.faq-item h3 {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
}

.faq-item h3::before {
    content: 'Q:';
    position: absolute;
    left: 0;
    color: #84fab0;
    font-weight: bold;
}

.faq-item p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    padding-left: 25px;
}

.faq-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.faq-tag {
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 20px;
    color: #666;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: 1px solid rgba(132, 250, 176, 0.3);
}

.faq-tag:hover,
.faq-tag.active {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(132, 250, 176, 0.3);
}

@media (max-width: 1024px) {
    .faq-grid {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
    
    .faq-category {
        margin-bottom: 30px;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .hero-text {
        text-align: center;
        max-width: 100%;
    }

    .hero-image {
        max-width: 300px;
    }

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

    .hero-content h2 {
        font-size: 36px;
    }

    .hero-content p {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .faq-category {
        padding: 20px;
    }
    
    .faq-item {
        padding: 15px;
    }
    
    .faq-item h3 {
        font-size: 16px;
        padding-left: 20px;
    }
    
    .faq-item p {
        font-size: 14px;
        padding-left: 20px;
    }
    
    .faq-category-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .faq-tags {
        gap: 8px;
    }
    
    .faq-tag {
        padding: 6px 15px;
        font-size: 13px;
    }

    .hero-image {
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    .faq-grid {
        padding: 0 15px;
    }
    
    .faq-category {
        padding: 15px;
    }
    
    .faq-item {
        padding: 12px;
    }
    
    .faq-item h3 {
        font-size: 15px;
        padding-left: 18px;
    }
    
    .faq-item p {
        font-size: 13px;
        padding-left: 18px;
    }

    .hero-image {
        max-width: 200px;
    }

    .hero-content h2 {
        font-size: 24px;
    }

    .hero-content p {
        font-size: 14px;
    }

    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .stat-item {
        width: 100%;
        max-width: 200px;
    }

    .stat-number {
        font-size: 20px;
    }

    .stat-label {
        font-size: 12px;
    }

    .feature-grid,
    .download-grid,
    .tutorial-grid,
    .faq-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }
}

/* 用户评价区域 */
.reviews {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
    position: relative;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.review-item {
    background: rgba(255, 255, 255, 0.9);
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.review-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.review-stars {
    color: #f1c40f;
    font-size: 24px;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.review-text {
    font-style: italic;
    margin-bottom: 20px;
}

.review-author {
    color: #666;
    font-weight: 500;
}

/* 联系我们区域 */
.contact {
    padding: 100px 0;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(132, 250, 176, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(143, 211, 244, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto 40px;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

.contact-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-height: 300px;
}

.contact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.contact-icon {
    font-size: 48px;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.contact-card:hover .contact-icon {
    transform: scale(1.1);
}

.contact-card h3 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.contact-card p {
    color: #666;
    font-size: 16px;
    margin-bottom: 10px;
}

.contact-desc {
    font-size: 14px !important;
    color: #888 !important;
    margin-bottom: 20px !important;
}

.contact-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    text-decoration: none;
    border-radius: 25px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(132, 250, 176, 0.3);
    margin-top: auto;
    width: 100%;
    max-width: 200px;
}

.contact-button:hover {
    background: linear-gradient(135deg, #8fd3f4 0%, #84fab0 100%);
    box-shadow: 0 6px 20px rgba(132, 250, 176, 0.4);
    transform: translateY(-2px);
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: auto;
    justify-content: center;
}

.social-link {
    padding: 8px 20px;
    background: rgba(132, 250, 176, 0.1);
    color: #2c3e50;
    text-decoration: none;
    border-radius: 20px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    transform: translateY(-2px);
}

.contact-info {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.info-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.info-label {
    font-weight: 600;
    color: #2c3e50;
    min-width: 100px;
}

.info-value {
    color: #666;
}

@media (max-width: 1024px) {
    .contact-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .contact-card {
        min-height: 250px;
        padding: 30px 20px;
    }
    
    .contact-icon {
        font-size: 40px;
    }
    
    .contact-card h3 {
        font-size: 20px;
    }
    
    .contact-card p {
        font-size: 14px;
    }
    
    .contact-desc {
        font-size: 12px !important;
    }
    
    .contact-button {
        padding: 10px 25px;
        font-size: 14px;
    }
    
    .social-link {
        padding: 6px 15px;
        font-size: 13px;
    }
    
    .contact-info {
        padding: 20px;
    }
    
    .info-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .info-label {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .contact-grid {
        padding: 0 15px;
    }
    
    .contact-card {
        padding: 25px 15px;
    }
    
    .contact-icon {
        font-size: 36px;
    }
    
    .contact-card h3 {
        font-size: 18px;
    }
    
    .contact-card p {
        font-size: 13px;
    }
    
    .contact-button {
        padding: 8px 20px;
        font-size: 13px;
    }
    
    .social-links {
        flex-wrap: wrap;
    }
    
    .social-link {
        padding: 5px 12px;
        font-size: 12px;
    }
}

/* 页脚样式 */
.footer {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    padding: 60px 0 30px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 20px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 10px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    z-index: 1;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .tutorial-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
    }

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

    .faq-grid {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        height: auto;
        padding: 20px;
    }

    .nav ul {
        margin-top: 20px;
        flex-direction: column;
        text-align: center;
    }

    .nav ul li {
        margin: 10px 0;
    }

    .hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

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

    .hero-image {
        max-width: 400px;
    }

    .hero-content h2 {
        font-size: 36px;
    }

    .hero-content p {
        font-size: 18px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }

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

    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .feature-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .feature-item {
        min-height: 350px;
        padding: 30px 20px;
    }

    .feature-icon {
        font-size: 40px;
    }
    
    .feature-item h3 {
        font-size: 20px;
    }
    
    .feature-item p {
        font-size: 14px;
    }
    
    .feature-stat-number {
        font-size: 20px;
    }
    
    .feature-stat-label {
        font-size: 12px;
    }
    
    .feature-details li {
        font-size: 13px;
    }

    .tutorial-item {
        min-height: 250px;
        padding: 30px;
    }
    
    .tutorial-step {
        width: 50px;
        height: 50px;
        font-size: 20px;
        top: -15px;
        left: 30px;
    }

    .download-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .download-item {
        min-height: 350px;
    }

    .faq-item {
        padding: 25px;
    }
    
    .faq-item::before {
        font-size: 60px;
    }
    
    .faq-item h3 {
        font-size: 18px;
    }
    
    .faq-item p {
        font-size: 15px;
    }

    .logo-subtitle {
        font-size: 12px;
    }
    
    .section-subtitle {
        font-size: 16px;
        margin-bottom: 30px;
    }
}

@media (max-width: 480px) {
    .hero-image {
        max-width: 250px;
    }

    .hero-content h2 {
        font-size: 24px;
    }

    .hero-content p {
        font-size: 14px;
    }

    .feature-grid,
    .download-grid,
    .tutorial-grid,
    .faq-grid,
    .reviews-grid {
        grid-template-columns: 1fr;
    }

    .stat-number {
        font-size: 28px;
    }

    .stat-label {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 21px;
        position: relative;
        z-index: 1002;
        cursor: pointer;
        background: none;
        border: none;
        padding: 0;
        margin-left: auto;
    }

    .mobile-menu-btn .menu-line {
        display: block;
        width: 100%;
        height: 3px;
        background-color: #2c3e50;
        border-radius: 3px;
        transition: all 0.3s ease;
    }

    .nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        padding: 80px 20px 20px;
        transition: all 0.3s ease;
        box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
        z-index: 1001;
        overflow-y: auto;
        visibility: hidden;
        opacity: 0;
    }

    .nav.active {
        right: 0;
        visibility: visible;
        opacity: 1;
        transform: translateX(0);
    }

    .nav-list {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .nav-item {
        margin: 0;
        width: 100%;
        margin-bottom: 10px;
    }

    .nav-link {
        display: block;
        padding: 12px 20px;
        width: 100%;
        border-radius: 10px;
        font-size: 16px;
        color: #2c3e50;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .nav-link:hover {
        background: rgba(52, 152, 219, 0.1);
    }

    .mobile-menu-btn.active .menu-line:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

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

    .mobile-menu-btn.active .menu-line:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .header .container {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 20px;
        position: relative;
    }
}

@media (max-width: 480px) {
    .nav {
        width: 100%;
        max-width: none;
    }

    .header .container {
        padding: 0 15px;
    }

    .logo h1 {
        font-size: 18px;
    }

    .logo-subtitle {
        font-size: 11px;
    }
}