/* 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 */
.zf619econtainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.zf619eheader {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.zf619eheader .zf619econtainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.zf619elogo h1 {
    font-size: 24px;
    color: #2c3e50;
}

.zf619emain-nav ul {
    display: flex;
    list-style: none;
}

.zf619emain-nav li {
    margin-left: 30px;
}

.zf619emain-nav a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: color 0.3s;
}

.zf619emain-nav a:hover {
    color: #3498db;
}

/* 英雄区域 */
.zf619ehero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 120px 0 80px;
    position: relative;
    overflow: hidden;
}

.zf619ehero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.zf619ehero-left {
    flex: 1;
    max-width: 600px;
}

.zf619ehero-right {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.zf619ehero-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;
}

.zf619ehero-image:hover {
    transform: translateY(-5px);
}

.zf619ehero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
}

.zf619ehero-content p {
    font-size: 20px;
    margin-bottom: 40px;
}

.zf619ehero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 40px;
}

.zf619estat-item {
    text-align: center;
}

.zf619estat-number {
    display: block;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
}

.zf619estat-label {
    font-size: 18px;
    opacity: 0.9;
}

/* 按钮样式 */
.zf619ebtn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.zf619ebtn-primary {
    background-color: #e74c3c;
    color: white;
}

.zf619ebtn-secondary {
    background-color: transparent;
    border: 2px solid white;
    color: white;
    margin-left: 20px;
}

.zf619ebtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

/* 特点部分 */
.zf619efeatures {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.zf619esection-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #2c3e50;
}

.zf619esection-subtitle {
    text-align: center;
    font-size: 18px;
    color: #666;
    margin-bottom: 60px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.zf619efeatures-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.zf619efeature-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;
}

.zf619efeature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.zf619efeature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.zf619efeature-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);
}

.zf619efeature-card h3 {
    color: #2c3e50;
    font-size: 24px;
    margin-bottom: 15px;
}

.zf619efeature-card > p {
    color: #666;
    margin-bottom: 30px;
    font-size: 16px;
}

.zf619efeature-content {
    text-align: left;
}

.zf619efeature-list {
    display: grid;
    gap: 20px;
}

.zf619efeature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.zf619efeature-item:hover {
    background: #fff;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.zf619efeature-item-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.zf619efeature-item-content {
    flex: 1;
}

.zf619efeature-item-content h4 {
    color: #2c3e50;
    font-size: 16px;
    margin-bottom: 5px;
}

.zf619efeature-item-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.4;
}

/* 功能展示 */
.zf619efunctions {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.zf619efunctions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.zf619efunction-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;
}

.zf619efunction-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.zf619efunction-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.zf619efunction-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.zf619efunction-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);
}

.zf619efunction-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0;
}

.zf619efunction-content {
    padding: 30px;
}

.zf619efunction-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.zf619efunction-item:last-child {
    margin-bottom: 0;
}

.zf619efunction-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.zf619efunction-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);
}

.zf619efunction-item-content {
    flex: 1;
}

.zf619efunction-item-content h4 {
    color: #2c3e50;
    font-size: 16px;
    margin: 0 0 5px 0;
}

.zf619efunction-item-content p {
    color: #666;
    font-size: 14px;
    margin: 0;
    line-height: 1.4;
}

/* 下载中心 */
.zf619edownload {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.zf619edownload-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.zf619edownload-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;
}

.zf619edownload-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.zf619edownload-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.zf619edownload-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.zf619edownload-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);
}

.zf619edownload-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0 0 10px 0;
}

.zf619edownload-subtitle {
    color: #666;
    font-size: 16px;
    margin: 0;
}

.zf619edownload-content {
    padding: 30px;
}

.zf619eversion-info {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
    margin-bottom: 20px;
}

.zf619eversion-item {
    text-align: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.zf619eversion-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateY(-5px);
}

.zf619eversion-label {
    display: block;
    color: #666;
    font-size: 14px;
    margin-bottom: 5px;
}

.zf619eversion-value {
    display: block;
    color: #2c3e50;
    font-size: 18px;
    font-weight: bold;
}

.zf619edownload-features {
    display: grid;
    gap: 10px;
    margin-bottom: 20px;
}

.zf619efeature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.zf619efeature-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.zf619efeature-icon {
    color: #2ecc71;
    font-size: 18px;
}

.zf619efeature-text {
    color: #2c3e50;
    font-size: 14px;
}

.zf619esystem-requirements {
    margin-bottom: 20px;
}

.zf619esystem-requirements h4 {
    color: #2c3e50;
    font-size: 16px;
    margin-bottom: 10px;
}

.zf619esystem-requirements ul {
    list-style: none;
    padding: 0;
}

.zf619esystem-requirements li {
    color: #666;
    font-size: 14px;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
}

.zf619esystem-requirements li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #3498db;
}

.zf619ebtn-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;
}

.zf619ebtn-download:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.zf619ebtn-icon {
    font-size: 20px;
}

.zf619emobile-download-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.zf619ebtn-apple {
    background: #000;
}

.zf619ebtn-apple:hover {
    background: #333;
}

.zf619ebtn-android {
    background: #3ddc84;
}

.zf619ebtn-android:hover {
    background: #2bb673;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .zf619edownload-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .zf619edownload-grid {
        grid-template-columns: 1fr;
    }

    .zf619edownload-card {
        margin-bottom: 20px;
    }

    .zf619edownload-header {
        padding: 20px;
    }

    .zf619edownload-content {
        padding: 20px;
    }

    .zf619eversion-info {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .zf619econtainer {
        padding: 0 15px;
        width: 100%;
        max-width: 100%;
    }

    .zf619edownload-grid,
    .zf619eguide-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .zf619edownload-card,
    .zf619eguide-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;
    }

    .zf619edownload-header,
    .zf619eguide-header,
    .zf619edownload-content,
    .zf619eguide-content {
        padding: 15px !important;
        margin: 0 !important;
    }

    .zf619edownload-header h3,
    .zf619eguide-content h3 {
        font-size: 18px !important;
        margin-bottom: 6px !important;
        text-align: left !important;
    }

    .zf619edownload-content p,
    .zf619eguide-content p {
        font-size: 13px !important;
        margin-bottom: 10px !important;
        text-align: left !important;
    }

    .zf619eguide-steps,
    .zf619eguide-tip {
        margin: 0 !important;
        padding: 0 !important;
    }

    .zf619estep-item {
        margin: 0 !important;
        padding: 8px 0 !important;
    }
}

/* 使用指南 */
.zf619eguide {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.zf619eguide-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.zf619eguide-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;
}

.zf619eguide-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.zf619eguide-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.zf619eguide-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
    position: relative;
}

.zf619eguide-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);
}

.zf619eguide-number {
    position: absolute;
    top: 20px;
    right: 20px;
    font-size: 24px;
    font-weight: bold;
    color: #3498db;
    opacity: 0.2;
}

.zf619eguide-content {
    padding: 30px;
}

.zf619eguide-content h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0 0 10px 0;
    text-align: center;
}

.zf619eguide-content p {
    color: #666;
    font-size: 16px;
    margin-bottom: 20px;
    text-align: center;
}

.zf619eguide-steps {
    display: grid;
    gap: 15px;
    margin-bottom: 20px;
}

.zf619estep-item {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.zf619estep-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.zf619estep-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);
}

.zf619estep-text {
    color: #2c3e50;
    font-size: 16px;
    font-weight: 500;
}

.zf619eguide-tip {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px;
    background: #e8f4fd;
    border-radius: 10px;
    margin-top: 20px;
}

.zf619etip-icon {
    font-size: 20px;
    color: #3498db;
}

.zf619etip-text {
    color: #2c3e50;
    font-size: 14px;
    font-weight: 500;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .zf619eguide-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .zf619eguide-grid {
        grid-template-columns: 1fr;
    }

    .zf619eguide-card {
        margin-bottom: 20px;
    }

    .zf619eguide-header {
        padding: 20px;
    }

    .zf619eguide-content {
        padding: 20px;
    }

    .zf619estep-item {
        padding: 12px;
    }
}

@media (max-width: 480px) {
    .zf619eguide-grid {
        grid-template-columns: 1fr !important;
        gap: 16px !important;
    }
    .zf619eguide-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;
    }
    .zf619eguide-header,
    .zf619eguide-content {
        padding: 15px !important;
    }
    .zf619eguide-content h3 {
        font-size: 18px !important;
        margin-bottom: 6px !important;
        word-break: break-all;
    }
    .zf619eguide-content p, .zf619estep-text, .zf619etip-text {
        font-size: 13px !important;
        word-break: break-all;
    }
    .zf619eguide-steps, .zf619eguide-tip {
        flex-direction: column !important;
        gap: 8px !important;
    }
    .zf619estep-item {
        flex-direction: row !important;
        align-items: flex-start !important;
        gap: 8px !important;
        padding: 8px 0 !important;
    }
}

/* FAQ部分 */
.zf619efaq {
    padding: 80px 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.zf619efaq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.zf619efaq-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;
}

.zf619efaq-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.zf619efaq-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, #3498db, #2ecc71);
}

.zf619efaq-header {
    padding: 30px;
    text-align: center;
    background: #f8f9fa;
    border-bottom: 1px solid #eee;
}

.zf619efaq-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);
}

.zf619efaq-header h3 {
    color: #2c3e50;
    font-size: 24px;
    margin: 0;
}

.zf619efaq-content {
    padding: 30px;
}

.zf619efaq-item {
    margin-bottom: 20px;
    border-bottom: 1px solid #eee;
    padding-bottom: 20px;
}

.zf619efaq-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
    padding-bottom: 0;
}

.zf619efaq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.zf619efaq-question:hover {
    transform: translateX(5px);
}

.zf619equestion-icon {
    font-size: 24px;
    color: #3498db;
}

.zf619equestion-text {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 500;
}

.zf619efaq-answer {
    padding-left: 39px;
}

.zf619efaq-answer p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.zf619eanswer-tips {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 15px;
}

.zf619etip-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.zf619etip-item:hover {
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform: translateX(5px);
}

.zf619etip-icon {
    font-size: 20px;
    color: #3498db;
}

.zf619etip-text {
    color: #2c3e50;
    font-size: 14px;
    font-weight: 500;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .zf619efaq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .zf619efaq-grid {
        grid-template-columns: 1fr;
    }

    .zf619efaq-card {
        margin-bottom: 20px;
    }

    .zf619efaq-header {
        padding: 20px;
    }

    .zf619efaq-content {
        padding: 20px;
    }

    .zf619eanswer-tips {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .zf619efaq-header {
        padding: 15px;
    }

    .zf619efaq-icon {
        font-size: 36px;
        padding: 10px;
    }

    .zf619efaq-header h3 {
        font-size: 20px;
    }

    .zf619efaq-content {
        padding: 15px;
    }

    .zf619equestion-text {
        font-size: 16px;
    }

    .zf619efaq-answer p {
        font-size: 14px;
    }

    .zf619etip-item {
        padding: 8px;
    }

    .zf619etip-icon {
        font-size: 16px;
    }

    .zf619etip-text {
        font-size: 12px;
    }
}

/* 页脚 */
.zf619efooter {
    background-color: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.zf619efooter-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.zf619efooter-section h3 {
    margin-bottom: 20px;
    font-size: 18px;
}

.zf619efooter-section ul {
    list-style: none;
}

.zf619efooter-section ul li {
    margin-bottom: 10px;
}

.zf619efooter-section a {
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s;
}

.zf619efooter-section a:hover {
    opacity: 1;
}

.zf619efooter-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) {
    .zf619econtainer {
        padding: 0 20px;
    }

    .zf619ehero-content {
        flex-direction: column;
        text-align: center;
    }

    .zf619ehero-left {
        margin-bottom: 40px;
    }

    .zf619ehero-stats {
        justify-content: center;
    }

    .zf619ehero-right {
        width: 100%;
        max-width: 600px;
        margin: 0 auto;
    }

    .zf619ehero-image {
        width: 100%;
        height: auto;
    }

    .zf619efeatures-grid,
    .zf619efunctions-grid,
    .zf619eadvantages-grid,
    .zf619ecases-grid,
    .zf619epartners-grid,
    .zf619edownload-grid,
    .zf619eguide-grid,
    .zf619efaq-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .zf619eheader {
        padding: 15px 0;
    }

    .zf619eheader .zf619econtainer {
        height: 60px;
    }

    .zf619elogo h1 {
        font-size: 20px;
    }

    .zf619emain-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;
    }

    .zf619emain-nav.active {
        display: block;
    }

    .zf619emain-nav ul {
        flex-direction: column;
        gap: 15px;
    }

    .zf619emain-nav li {
        margin: 0;
        width: 100%;
        text-align: center;
    }

    .zf619emain-nav a {
        display: block;
        padding: 10px;
        font-size: 16px;
    }

    .zf619emobile-menu-btn {
        display: block;
        background: none;
        border: none;
        font-size: 24px;
        cursor: pointer;
        padding: 5px;
        color: #2c3e50;
    }

    .zf619esection-title {
        font-size: 28px;
        margin-bottom: 30px;
    }

    .zf619esection-subtitle {
        font-size: 16px;
        margin-bottom: 30px;
    }

    .zf619efeatures-grid,
    .zf619efunctions-grid,
    .zf619edownload-grid,
    .zf619eguide-grid,
    .zf619efaq-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .zf619efeature-card,
    .zf619efunction-card,
    .zf619edownload-card,
    .zf619eguide-card,
    .zf619efaq-card {
        margin-bottom: 20px;
    }

    .zf619ehero {
        padding: 100px 0 60px;
    }

    .zf619ehero h2 {
        font-size: 32px;
    }

    .zf619ehero p {
        font-size: 16px;
    }

    .zf619ehero-stats {
        flex-wrap: wrap;
        gap: 20px;
    }

    .zf619estat-item {
        flex: 1 1 calc(50% - 20px);
        min-width: 140px;
    }

    .zf619estat-number {
        font-size: 24px;
    }

    .zf619estat-label {
        font-size: 14px;
    }

    .zf619ebtn {
        padding: 12px 24px;
        font-size: 16px;
    }

    .zf619efooter-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }

    .zf619efooter-section ul {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .zf619econtainer {
        padding: 0 15px;
    }

    .zf619eheader .zf619econtainer {
        height: 50px;
    }

    .zf619elogo h1 {
        font-size: 18px;
    }

    .zf619emain-nav {
        top: 50px;
    }

    .zf619esection-title {
        font-size: 24px;
        margin-bottom: 20px;
    }

    .zf619esection-subtitle {
        font-size: 14px;
        margin-bottom: 20px;
    }

    .zf619ehero {
        padding: 80px 0 40px;
    }

    .zf619ehero h2 {
        font-size: 28px;
    }

    .zf619ehero p {
        font-size: 14px;
    }

    .zf619ehero-stats {
        flex-direction: column;
        gap: 15px;
    }

    .zf619estat-item {
        flex: 1 1 100%;
    }

    .zf619ecta-buttons {
        flex-direction: column;
        gap: 15px;
    }

    .zf619ebtn {
        width: 100%;
    }

    .zf619efeature-header,
    .zf619efunction-header,
    .zf619edownload-header,
    .zf619eguide-header,
    .zf619efaq-header {
        padding: 15px;
    }

    .zf619efeature-icon,
    .zf619efunction-icon,
    .zf619edownload-icon,
    .zf619eguide-icon,
    .zf619efaq-icon {
        font-size: 32px;
        padding: 10px;
    }

    .zf619efeature-content,
    .zf619efunction-content,
    .zf619edownload-content,
    .zf619eguide-content,
    .zf619efaq-content {
        padding: 15px;
    }

    .zf619efeature-item,
    .zf619efunction-item,
    .zf619edownload-item,
    .zf619eguide-item,
    .zf619efaq-item {
        padding: 10px;
    }

    .zf619emobile-download-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .zf619ebtn-download {
        width: 100%;
    }
}

/* 添加移动端菜单按钮样式 */
.zf619emobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    padding: 5px;
}

@media (max-width: 768px) {
    .zf619emobile-menu-btn {
        display: block;
    }
}

/* 优化触摸设备体验 */
@media (hover: none) {
    .zf619efeature-card:hover,
    .zf619efunction-card:hover,
    .zf619eadvantage-card:hover,
    .zf619ecase-card:hover,
    .zf619epartner-card:hover,
    .zf619edownload-card:hover,
    .zf619eguide-card:hover,
    .zf619efaq-card:hover {
        transform: none;
    }

    .zf619ebtn:hover {
        transform: none;
    }

    .zf619efeature-item:hover,
    .zf619efunction-item:hover,
    .zf619eadvantage-item:hover,
    .zf619ecase-item:hover,
    .zf619epartner-item:hover,
    .zf619edownload-item:hover,
    .zf619eguide-item:hover,
    .zf619efaq-item:hover {
        transform: none;
    }
}