/* 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;
}

.z84bbacontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.z84bbaheader {
    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);
}

.z84bbaheader .z84bbacontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    padding: 0 20px;
}

.z84bbalogo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    z-index: 1001;
}

.z84bbalogo-subtitle {
    font-size: 14px;
    color: #666;
    margin-top: 5px;
}

.z84bbalogo h1 {
    font-size: 24px;
    color: #2c3e50;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.z84bbanav {
    position: relative;
}

.z84bbanav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z84bbanav ul li {
    margin-left: 30px;
}

.z84bbanav ul li a {
    text-decoration: none;
    color: #2c3e50;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 20px;
}

.z84bbanav ul li a:hover {
    color: #3498db;
    background: rgba(52, 152, 219, 0.1);
}

.z84bbamobile-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.z84bbamobile-menu-btn .z84bbamenu-line {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #2c3e50;
    border-radius: 3px;
    transition: all 0.3s ease;
}

/* 英雄区域样式 */
.z84bbahero {
    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;
}

.z84bbahero::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%;
    }
}

.z84bbahero-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;
}

.z84bbahero-text {
    flex: 1;
    text-align: left;
    max-width: 600px;
}

.z84bbahero-image {
    flex: 1;
    max-width: 400px;
    height: auto;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.z84bbahero-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;
}

.z84bbahero-image:hover img {
    transform: perspective(1000px) rotateY(0deg);
}

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

.z84bbahero-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;
}

.z84bbahero-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;
}

.z84bbahero-stats {
    display: flex;
    justify-content: flex-start;
    gap: 30px;
    margin: 40px 0;
    flex-wrap: wrap;
}

.z84bbastat-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;
}

.z84bbastat-item:hover {
    transform: translateY(-5px);
}

.z84bbastat-number {
    display: block;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.z84bbastat-label {
    font-size: 18px;
    opacity: 0.9;
}

.z84bbacta-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;
}

.z84bbacta-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 */
.z84bbafeatures {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
    position: relative;
}

.z84bbafeatures::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;
}

.z84bbasection-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 60px;
    color: #2c3e50;
    position: relative;
}

.z84bbasection-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, #84fab0, #8fd3f4);
    margin: 20px auto 0;
    border-radius: 2px;
}

.z84bbasection-subtitle {
    text-align: center;
    color: #666;
    font-size: 18px;
    margin-bottom: 40px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.z84bbafeature-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;
}

.z84bbafeature-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;
}

.z84bbafeature-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.z84bbafeature-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;
}

.z84bbafeature-item:hover .z84bbafeature-icon {
    transform: scale(1.1);
}

.z84bbafeature-item h3 {
    margin-bottom: 20px;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
}

.z84bbafeature-item p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.z84bbafeature-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%;
}

.z84bbafeature-stat {
    text-align: center;
}

.z84bbafeature-stat-number {
    font-size: 24px;
    font-weight: bold;
    color: #2c3e50;
    margin-bottom: 5px;
}

.z84bbafeature-stat-label {
    font-size: 14px;
    color: #666;
}

.z84bbafeature-details {
    width: 100%;
    text-align: left;
    margin-top: auto;
}

.z84bbafeature-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z84bbafeature-details li {
    color: #666;
    font-size: 14px;
    padding: 8px 0;
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 20px;
}

.z84bbafeature-details li::before {
    content: '✓';
    color: #84fab0;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 使用教程区域 */
.z84bbatutorial {
    padding: 100px 0;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    position: relative;
}

.z84bbatutorial::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;
}

.z84bbatutorial-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;
}

.z84bbatutorial-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;
}

.z84bbatutorial-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.z84bbatutorial-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;
}

.z84bbatutorial-item h3 {
    margin: 20px 0 15px;
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
}

.z84bbatutorial-item p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.z84bbatutorial-details {
    margin-top: auto;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.z84bbatutorial-detail-item {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.z84bbatutorial-detail-icon {
    width: 24px;
    height: 24px;
    margin-right: 10px;
    color: #84fab0;
}

.z84bbatutorial-detail-text {
    color: #666;
    font-size: 14px;
}

/* 下载区域 */
.z84bbadownload {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
    position: relative;
}

.z84bbadownload::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;
}

.z84bbadownload-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;
}

.z84bbadownload-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;
}

.z84bbadownload-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.z84bbadownload-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;
}

.z84bbadownload-item:hover .z84bbadownload-icon {
    transform: scale(1.1);
}

.z84bbadownload-item h3 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.z84bbadownload-item p {
    color: #666;
    font-size: 16px;
    margin-bottom: 25px;
}

.z84bbaversion-info {
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    text-align: left;
    margin-bottom: 30px;
}

.z84bbaversion-info li {
    display: flex;
    align-items: center;
    margin: 12px 0;
    color: #666;
    font-size: 14px;
}

.z84bbaversion-info li::before {
    content: '✓';
    color: #84fab0;
    margin-right: 10px;
    font-weight: bold;
}

.z84bbadownload-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;
}

.z84bbadownload-button:hover {
    background: linear-gradient(135deg, #8fd3f4 0%, #84fab0 100%);
    box-shadow: 0 6px 20px rgba(132, 250, 176, 0.4);
    transform: translateY(-2px);
}

.z84bbadownload-button::after {
    content: '↓';
    margin-left: 8px;
    font-size: 18px;
}

.z84bbadownload-features {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    width: 100%;
}

.z84bbadownload-feature {
    display: flex;
    align-items: center;
    margin: 10px 0;
    color: #666;
    font-size: 14px;
}

.z84bbadownload-feature-icon {
    margin-right: 10px;
    color: #84fab0;
}

/* FAQ区域 */
.z84bbafaq {
    padding: 100px 0;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    position: relative;
}

.z84bbafaq::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;
}

.z84bbafaq-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;
}

.z84bbafaq-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;
}

.z84bbafaq-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.z84bbafaq-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;
}

.z84bbafaq-category-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, #84fab0, #8fd3f4);
}

.z84bbafaq-item {
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.z84bbafaq-item:last-child {
    margin-bottom: 0;
}

.z84bbafaq-item:hover {
    background: rgba(255, 255, 255, 0.8);
    transform: translateX(5px);
}

.z84bbafaq-item h3 {
    color: #2c3e50;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 15px;
    position: relative;
    padding-left: 25px;
}

.z84bbafaq-item h3::before {
    content: 'Q:';
    position: absolute;
    left: 0;
    color: #84fab0;
    font-weight: bold;
}

.z84bbafaq-item p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    margin: 0;
    padding-left: 25px;
}

.z84bbafaq-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
    justify-content: center;
}

.z84bbafaq-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);
}

.z84bbafaq-tag:hover,
.z84bbafaq-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) {
    .z84bbafaq-grid {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
    
    .z84bbafaq-category {
        margin-bottom: 30px;
    }

    .z84bbahero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .z84bbahero-text {
        text-align: center;
        max-width: 100%;
    }

    .z84bbahero-image {
        max-width: 300px;
    }

    .z84bbahero-stats {
        justify-content: center;
    }

    .z84bbahero-content h2 {
        font-size: 36px;
    }

    .z84bbahero-content p {
        font-size: 18px;
    }
}

@media (max-width: 768px) {
    .z84bbafaq-category {
        padding: 20px;
    }
    
    .z84bbafaq-item {
        padding: 15px;
    }
    
    .z84bbafaq-item h3 {
        font-size: 16px;
        padding-left: 20px;
    }
    
    .z84bbafaq-item p {
        font-size: 14px;
        padding-left: 20px;
    }
    
    .z84bbafaq-category-title {
        font-size: 20px;
        margin-bottom: 20px;
    }
    
    .z84bbafaq-tags {
        gap: 8px;
    }
    
    .z84bbafaq-tag {
        padding: 6px 15px;
        font-size: 13px;
    }

    .z84bbahero-image {
        max-width: 250px;
    }
}

@media (max-width: 480px) {
    .z84bbafaq-grid {
        padding: 0 15px;
    }
    
    .z84bbafaq-category {
        padding: 15px;
    }
    
    .z84bbafaq-item {
        padding: 12px;
    }
    
    .z84bbafaq-item h3 {
        font-size: 15px;
        padding-left: 18px;
    }
    
    .z84bbafaq-item p {
        font-size: 13px;
        padding-left: 18px;
    }

    .z84bbahero-image {
        max-width: 200px;
    }

    .z84bbahero-content h2 {
        font-size: 24px;
    }

    .z84bbahero-content p {
        font-size: 14px;
    }

    .z84bbahero-stats {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }

    .z84bbastat-item {
        width: 100%;
        max-width: 200px;
    }

    .z84bbastat-number {
        font-size: 20px;
    }

    .z84bbastat-label {
        font-size: 12px;
    }

    .z84bbafeature-grid,
    .z84bbadownload-grid,
    .z84bbatutorial-grid,
    .z84bbafaq-grid,
    .z84bbareviews-grid {
        grid-template-columns: 1fr;
    }
}

/* 用户评价区域 */
.z84bbareviews {
    padding: 100px 0;
    background: linear-gradient(135deg, #fdfcfb 0%, #e2d1c3 100%);
    position: relative;
}

.z84bbareviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.z84bbareview-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;
}

.z84bbareview-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.z84bbareview-stars {
    color: #f1c40f;
    font-size: 24px;
    margin-bottom: 20px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.z84bbareview-text {
    font-style: italic;
    margin-bottom: 20px;
}

.z84bbareview-author {
    color: #666;
    font-weight: 500;
}

/* 联系我们区域 */
.z84bbacontact {
    padding: 100px 0;
    background: linear-gradient(135deg, #a1c4fd 0%, #c2e9fb 100%);
    position: relative;
}

.z84bbacontact::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;
}

.z84bbacontact-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;
}

.z84bbacontact-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;
}

.z84bbacontact-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.z84bbacontact-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;
}

.z84bbacontact-card:hover .z84bbacontact-icon {
    transform: scale(1.1);
}

.z84bbacontact-card h3 {
    color: #2c3e50;
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 15px;
}

.z84bbacontact-card p {
    color: #666;
    font-size: 16px;
    margin-bottom: 10px;
}

.z84bbacontact-desc {
    font-size: 14px !important;
    color: #888 !important;
    margin-bottom: 20px !important;
}

.z84bbacontact-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;
}

.z84bbacontact-button:hover {
    background: linear-gradient(135deg, #8fd3f4 0%, #84fab0 100%);
    box-shadow: 0 6px 20px rgba(132, 250, 176, 0.4);
    transform: translateY(-2px);
}

.z84bbasocial-links {
    display: flex;
    gap: 15px;
    margin-top: auto;
    justify-content: center;
}

.z84bbasocial-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;
}

.z84bbasocial-link:hover {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    transform: translateY(-2px);
}

.z84bbacontact-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;
}

.z84bbainfo-item {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.z84bbainfo-item:last-child {
    margin-bottom: 0;
    border-bottom: none;
}

.z84bbainfo-label {
    font-weight: 600;
    color: #2c3e50;
    min-width: 100px;
}

.z84bbainfo-value {
    color: #666;
}

@media (max-width: 1024px) {
    .z84bbacontact-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 768px) {
    .z84bbacontact-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .z84bbacontact-card {
        min-height: 250px;
        padding: 30px 20px;
    }
    
    .z84bbacontact-icon {
        font-size: 40px;
    }
    
    .z84bbacontact-card h3 {
        font-size: 20px;
    }
    
    .z84bbacontact-card p {
        font-size: 14px;
    }
    
    .z84bbacontact-desc {
        font-size: 12px !important;
    }
    
    .z84bbacontact-button {
        padding: 10px 25px;
        font-size: 14px;
    }
    
    .z84bbasocial-link {
        padding: 6px 15px;
        font-size: 13px;
    }
    
    .z84bbacontact-info {
        padding: 20px;
    }
    
    .z84bbainfo-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }
    
    .z84bbainfo-label {
        min-width: auto;
    }
}

@media (max-width: 480px) {
    .z84bbacontact-grid {
        padding: 0 15px;
    }
    
    .z84bbacontact-card {
        padding: 25px 15px;
    }
    
    .z84bbacontact-icon {
        font-size: 36px;
    }
    
    .z84bbacontact-card h3 {
        font-size: 18px;
    }
    
    .z84bbacontact-card p {
        font-size: 13px;
    }
    
    .z84bbacontact-button {
        padding: 8px 20px;
        font-size: 13px;
    }
    
    .z84bbasocial-links {
        flex-wrap: wrap;
    }
    
    .z84bbasocial-link {
        padding: 5px 12px;
        font-size: 12px;
    }
}

/* 页脚样式 */
.z84bbafooter {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #2c3e50;
    padding: 60px 0 30px;
    position: relative;
    overflow: hidden;
}

.z84bbafooter::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;
}

.z84bbafooter-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
    position: relative;
    z-index: 1;
}

.z84bbafooter-section h3 {
    margin-bottom: 20px;
    font-size: 20px;
    color: #fff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.z84bbafooter-section ul {
    list-style: none;
}

.z84bbafooter-section ul li {
    margin-bottom: 10px;
}

.z84bbafooter-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.z84bbafooter-section ul li a:hover {
    color: #fff;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.z84bbafooter-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) {
    .z84bbafeature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z84bbatutorial-grid {
        grid-template-columns: 1fr;
        max-width: 600px;
    }

    .z84bbadownload-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z84bbafaq-grid {
        grid-template-columns: 1fr;
        max-width: 800px;
    }
}

@media (max-width: 768px) {
    .z84bbaheader .z84bbacontainer {
        flex-direction: column;
        height: auto;
        padding: 20px;
    }

    .z84bbanav ul {
        margin-top: 20px;
        flex-direction: column;
        text-align: center;
    }

    .z84bbanav ul li {
        margin: 10px 0;
    }

    .z84bbahero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .z84bbahero-text {
        text-align: center;
    }

    .z84bbahero-image {
        max-width: 400px;
    }

    .z84bbahero-content h2 {
        font-size: 36px;
    }

    .z84bbahero-content p {
        font-size: 18px;
    }

    .z84bbahero-stats {
        flex-direction: column;
        gap: 30px;
    }

    .z84bbasection-title {
        font-size: 28px;
    }

    .z84bbafooter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .z84bbafeature-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
    }
    
    .z84bbafeature-item {
        min-height: 350px;
        padding: 30px 20px;
    }

    .z84bbafeature-icon {
        font-size: 40px;
    }
    
    .z84bbafeature-item h3 {
        font-size: 20px;
    }
    
    .z84bbafeature-item p {
        font-size: 14px;
    }
    
    .z84bbafeature-stat-number {
        font-size: 20px;
    }
    
    .z84bbafeature-stat-label {
        font-size: 12px;
    }
    
    .z84bbafeature-details li {
        font-size: 13px;
    }

    .z84bbatutorial-item {
        min-height: 250px;
        padding: 30px;
    }
    
    .z84bbatutorial-step {
        width: 50px;
        height: 50px;
        font-size: 20px;
        top: -15px;
        left: 30px;
    }

    .z84bbadownload-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
    }
    
    .z84bbadownload-item {
        min-height: 350px;
    }

    .z84bbafaq-item {
        padding: 25px;
    }
    
    .z84bbafaq-item::before {
        font-size: 60px;
    }
    
    .z84bbafaq-item h3 {
        font-size: 18px;
    }
    
    .z84bbafaq-item p {
        font-size: 15px;
    }

    .z84bbalogo-subtitle {
        font-size: 12px;
    }
    
    .z84bbasection-subtitle {
        font-size: 16px;
        margin-bottom: 30px;
    }
}

@media (max-width: 480px) {
    .z84bbahero-image {
        max-width: 250px;
    }

    .z84bbahero-content h2 {
        font-size: 24px;
    }

    .z84bbahero-content p {
        font-size: 14px;
    }

    .z84bbafeature-grid,
    .z84bbadownload-grid,
    .z84bbatutorial-grid,
    .z84bbafaq-grid,
    .z84bbareviews-grid {
        grid-template-columns: 1fr;
    }

    .z84bbastat-number {
        font-size: 28px;
    }

    .z84bbastat-label {
        font-size: 16px;
    }
}

@media (max-width: 768px) {
    .z84bbamobile-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;
    }

    .z84bbamobile-menu-btn .z84bbamenu-line {
        display: block;
        width: 100%;
        height: 3px;
        background-color: #2c3e50;
        border-radius: 3px;
        transition: all 0.3s ease;
    }

    .z84bbanav {
        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;
    }

    .z84bbanav.active {
        right: 0;
        visibility: visible;
        opacity: 1;
        transform: translateX(0);
    }

    .z84bbanav-list {
        display: flex;
        flex-direction: column;
        align-items: flex-start;
        width: 100%;
        margin: 0;
        padding: 0;
        list-style: none;
    }

    .z84bbanav-item {
        margin: 0;
        width: 100%;
        margin-bottom: 10px;
    }

    .z84bbanav-link {
        display: block;
        padding: 12px 20px;
        width: 100%;
        border-radius: 10px;
        font-size: 16px;
        color: #2c3e50;
        text-decoration: none;
        transition: all 0.3s ease;
    }

    .z84bbanav-link:hover {
        background: rgba(52, 152, 219, 0.1);
    }

    .z84bbamobile-menu-btn.active .z84bbamenu-line:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .z84bbamobile-menu-btn.active .z84bbamenu-line:nth-child(2) {
        opacity: 0;
    }

    .z84bbamobile-menu-btn.active .z84bbamenu-line:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .z84bbaheader .z84bbacontainer {
        display: flex;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 20px;
        position: relative;
    }
}

@media (max-width: 480px) {
    .z84bbanav {
        width: 100%;
        max-width: none;
    }

    .z84bbaheader .z84bbacontainer {
        padding: 0 15px;
    }

    .z84bbalogo h1 {
        font-size: 18px;
    }

    .z84bbalogo-subtitle {
        font-size: 11px;
    }
}