/* 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;
}

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

/* 头部样式 */
.header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 24px;
    color: #2c3e50;
}

.main-nav ul {
    display: flex;
    list-style: none;
}

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

.main-nav a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s;
}

.main-nav a:hover {
    color: #3498db;
}

/* 英雄区域 */
.hero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

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

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

.hero-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease;
}

.hero-image:hover {
    transform: translateY(-5px);
}

.hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.hero-content p {
    font-size: 20px;
    margin-bottom: 40px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

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

.stat-number {
    display: block;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
}

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

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.btn-primary {
    background-color: #e74c3c;
    color: white;
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid white;
    color: white;
    margin-left: 20px;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* 特点部分 */
.features {
    padding: 80px 0;
    background-color: #f8f9fa;
}

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

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.feature-icon {
    font-size: 48px;
    margin-bottom: 20px;
    display: inline-block;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

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

.feature-card > p {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

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

.feature-list {
    display: grid;
    gap: 20px;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.feature-item-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.feature-item-content {
    flex: 1;
}

.feature-item-content h4 {
    color: #2c3e50;
    font-size: 16px;
    margin-bottom: 5px;
}

.feature-item-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.4;
}

/* 功能展示 */
.functions {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.functions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.function-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.function-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.function-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.function-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.function-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: inline-block;
    padding: 15px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.function-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0;
}

.function-content {
    padding: 30px;
}

.function-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

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

.function-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.function-item-icon {
    font-size: 24px;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 50%;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.function-item-content {
    flex: 1;
}

.function-item-content h4 {
    color: #2c3e50;
    font-size: 16px;
    margin: 0 0 5px 0;
}

.function-item-content p {
    color: #666;
    font-size: 14px;
    margin: 0;
    line-height: 1.4;
}

/* 下载中心 */
.download {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.download-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.download-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.download-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.download-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.download-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: inline-block;
    padding: 15px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.download-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0 0 10px 0;
}

.download-subtitle {
    color: #666;
    font-size: 16px;
    margin: 0;
}

.download-content {
    padding: 30px;
}

.version-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.version-item {
    text-align: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

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

.version-label {
    display: block;
    color: #666;
    font-size: 14px;
    margin-bottom: 5px;
}

.version-value {
    display: block;
    color: #2c3e50;
    font-size: 18px;
    font-weight: bold;
}

.download-features {
    display: grid;
    gap: 10px;
    margin-bottom: 20px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.feature-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.feature-icon {
    color: #2ecc71;
    font-size: 18px;
}

.feature-text {
    color: #2c3e50;
    font-size: 14px;
}

.system-requirements {
    margin-bottom: 20px;
}

.system-requirements h4 {
    color: #2c3e50;
    font-size: 16px;
    margin-bottom: 10px;
}

.system-requirements ul {
    list-style: none;
    padding: 0;
}

.system-requirements li {
    color: #666;
    font-size: 14px;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.system-requirements li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #3498db;
}

.btn-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 15px;
    background: #3498db;
    color: white;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-download:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.btn-icon {
    font-size: 20px;
}

.mobile-download-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.btn-apple {
    background: #000;
}

.btn-apple:hover {
    background: #333;
}

.btn-android {
    background: #3ddc84;
}

.btn-android:hover {
    background: #2bb673;
}

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

@media (max-width: 768px) {
    .download-grid {
        grid-template-columns: 1fr;
    }

    .download-card {
        margin-bottom: 20px;
    }

    .download-header {
        padding: 20px;
    }

    .download-content {
        padding: 20px;
    }

    .version-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
        width: 100%;
        max-width: 100%;
    }

    .download-grid,
    .guide-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .download-card,
    .guide-card {
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box !important;
        margin: 0 !important;
        padding: 0 !important;
        border-radius: 15px !important;
        overflow: hidden !important;
        background: white !important;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
    }

    .download-header,
    .guide-header,
    .download-content,
    .guide-content {
        padding: 15px !important;
        margin: 0 !important;
    }

    .download-header h3,
    .guide-content h3 {
        font-size: 18px !important;
        margin-bottom: 6px !important;
        text-align: left !important;
    }

    .download-content p,
    .guide-content p {
        font-size: 13px !important;
        margin-bottom: 10px !important;
        text-align: left !important;
    }

    .guide-steps,
    .guide-tip {
        margin: 0 !important;
        padding: 0 !important;
    }

    .step-item {
        margin: 0 !important;
        padding: 8px 0 !important;
    }
}

/* 使用指南 */
.guide {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.guide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.guide-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.guide-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.guide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.guide-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
    position: relative;
}

.guide-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: inline-block;
    padding: 15px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.guide-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    font-weight: bold;
    color: #3498db;
    opacity: 0.2;
}

.guide-content {
    padding: 30px;
}

.guide-content h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0 0 10px 0;
    text-align: center;
}

.guide-content p {
    color: #666;
    font-size: 16px;
    margin-bottom: 20px;
    text-align: center;
}

.guide-steps {
    display: grid;
    gap: 15px;
    margin-bottom: 20px;
}

.step-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.step-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.step-icon {
    font-size: 24px;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 50%;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.step-text {
    color: #2c3e50;
    font-size: 16px;
    font-weight: 500;
}

.guide-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: #e8f4fd;
    border-radius: 10px;
    margin-top: 20px;
}

.tip-icon {
    font-size: 20px;
    color: #3498db;
}

.tip-text {
    color: #2c3e50;
    font-size: 14px;
    font-weight: 500;
}

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

@media (max-width: 768px) {
    .guide-grid {
        grid-template-columns: 1fr;
    }

    .guide-card {
        margin-bottom: 20px;
    }

    .guide-header {
        padding: 20px;
    }

    .guide-content {
        padding: 20px;
    }

    .step-item {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .guide-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }
    .guide-card {
        width: 100% !important;
        min-width: 0 !important;
        box-sizing: border-box;
        margin-bottom: 0 !important;
        border-radius: 15px !important;
        overflow: hidden !important;
        padding: 0 !important;
        background: white !important;
        box-shadow: 0 10px 30px rgba(0,0,0,0.1) !important;
    }
    .guide-header,
    .guide-content {
        padding: 15px !important;
    }
    .guide-content h3 {
        font-size: 18px !important;
        margin-bottom: 6px !important;
        word-break: break-all;
    }
    .guide-content p, .step-text, .tip-text {
        font-size: 13px !important;
        word-break: break-all;
    }
    .guide-steps, .guide-tip {
        flex-direction: column !important;
        gap: 8px !important;
    }
    .step-item {
        flex-direction: row !important;
        align-items: flex-start !important;
        gap: 8px !important;
        padding: 8px 0 !important;
    }
}

/* FAQ部分 */
.faq {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.faq-card {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
}

.faq-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.faq-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.faq-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.faq-icon {
    font-size: 48px;
    margin-bottom: 15px;
    display: inline-block;
    padding: 15px;
    background: white;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.faq-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0;
}

.faq-content {
    padding: 30px;
}

.faq-item {
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

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

.faq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.faq-question:hover {
    transform: translateX(5px);
}

.question-icon {
    font-size: 24px;
    color: #3498db;
}

.question-text {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 500;
}

.faq-answer {
    padding-left: 39px;
}

.faq-answer p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.answer-tips {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 15px;
}

.tip-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.tip-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.tip-icon {
    font-size: 20px;
    color: #3498db;
}

.tip-text {
    color: #2c3e50;
    font-size: 14px;
    font-weight: 500;
}

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

@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }

    .faq-card {
        margin-bottom: 20px;
    }

    .faq-header {
        padding: 20px;
    }

    .faq-content {
        padding: 20px;
    }

    .answer-tips {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .faq-header {
        padding: 15px;
    }

    .faq-icon {
        font-size: 36px;
        padding: 10px;
    }

    .faq-header h3 {
        font-size: 20px;
    }

    .faq-content {
        padding: 15px;
    }

    .question-text {
        font-size: 16px;
    }

    .faq-answer p {
        font-size: 14px;
    }

    .tip-item {
        padding: 8px;
    }

    .tip-icon {
        font-size: 16px;
    }

    .tip-text {
        font-size: 12px;
    }
}

/* 页脚 */
.footer {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

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

.footer-section h3 {
    margin-bottom: 20px;
    font-size: 18px;
}

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

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

.footer-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.footer-section a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

/* 响应式设计优化 */
@media (max-width: 1200px) {
    .container {
        padding: 0 20px;
    }

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

    .hero-left {
        margin-bottom: 40px;
    }

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

    .hero-right {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }

    .hero-image {
        width: 100%;
        height: auto;
    }

    .features-grid,
    .functions-grid,
    .advantages-grid,
    .cases-grid,
    .partners-grid,
    .download-grid,
    .guide-grid,
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 15px 0;
    }

    .header .container {
        height: 60px;
    }

    .logo h1 {
        font-size: 20px;
    }

    .main-nav {
        display: none;
        position: fixed;
        top: 60px;
        left: 0;
        width: 100%;
        background: white;
        padding: 20px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
        z-index: 1000;
    }

    .main-nav.active {
        display: block;
    }

    .main-nav ul {
        flex-direction: column;
        gap: 15px;
    }

    .main-nav li {
        margin: 0;
        width: 100%;
        text-align: center;
    }

    .main-nav a {
        display: block;
        padding: 10px;
        font-size: 16px;
    }

    .mobile-menu-btn {
        display: block;
        background: none;
        border: none;
        font-size: 24px;
        cursor: pointer;
        padding: 5px;
        color: #2c3e50;
    }

    .section-title {
        font-size: 28px;
        margin-bottom: 30px;
    }

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

    .features-grid,
    .functions-grid,
    .download-grid,
    .guide-grid,
    .faq-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feature-card,
    .function-card,
    .download-card,
    .guide-card,
    .faq-card {
        margin-bottom: 20px;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero h2 {
        font-size: 32px;
    }

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

    .hero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .stat-item {
        flex: 1 1 calc(50% - 20px);
        min-width: 140px;
    }

    .stat-number {
        font-size: 24px;
    }

    .stat-label {
        font-size: 14px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 16px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .footer-section ul {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .header .container {
        height: 50px;
    }

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

    .main-nav {
        top: 50px;
    }

    .section-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .section-subtitle {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .hero {
        padding: 80px 0 40px;
    }

    .hero h2 {
        font-size: 28px;
    }

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

    .hero-stats {
        flex-direction: column;
        gap: 15px;
    }

    .stat-item {
        flex: 1 1 100%;
    }

    .cta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .btn {
        width: 100%;
    }

    .feature-header,
    .function-header,
    .download-header,
    .guide-header,
    .faq-header {
        padding: 15px;
    }

    .feature-icon,
    .function-icon,
    .download-icon,
    .guide-icon,
    .faq-icon {
        font-size: 32px;
        padding: 10px;
    }

    .feature-content,
    .function-content,
    .download-content,
    .guide-content,
    .faq-content {
        padding: 15px;
    }

    .feature-item,
    .function-item,
    .download-item,
    .guide-item,
    .faq-item {
        padding: 10px;
    }

    .mobile-download-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .btn-download {
        width: 100%;
    }
}

/* 添加移动端菜单按钮样式 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
}

/* 优化触摸设备体验 */
@media (hover: none) {
    .feature-card:hover,
    .function-card:hover,
    .advantage-card:hover,
    .case-card:hover,
    .partner-card:hover,
    .download-card:hover,
    .guide-card:hover,
    .faq-card:hover {
        transform: none;
    }

    .btn:hover {
        transform: none;
    }

    .feature-item:hover,
    .function-item:hover,
    .advantage-item:hover,
    .case-item:hover,
    .partner-item:hover,
    .download-item:hover,
    .guide-item:hover,
    .faq-item:hover {
        transform: none;
    }
}