/* 重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* 基础样式 */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

.z4a951container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.z4a951header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.z4a951header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.45rem 0;
}

.z4a951logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.15rem;
}

.z4a951logo p {
    font-size: 0.85rem;
    opacity: 0.9;
}

.z4a951nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.z4a951nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.z4a951nav a:hover {
    opacity: 0.8;
}

/* 主要内容区域 */
.z4a951main {
    margin-top: 48px;
}

/* 英雄区域 */
.z4a951hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 2.3rem 0 2.3rem 0;
    min-height: 44vh;
    display: flex;
    align-items: center;
}

.z4a951hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.2rem;
    align-items: center;
}

.z4a951hero-text h2 {
    font-size: 2.3rem;
    font-weight: 700;
    margin-bottom: 0.8rem;
    line-height: 1.2;
}

.z4a951hero-text p {
    font-size: 1.18rem;
    margin-bottom: 1.2rem;
    opacity: 0.9;
}

.z4a951hero-buttons {
    display: flex;
    gap: 1rem;
}

.z4a951btn {
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.z4a951btn-primary {
    background: #fff;
    color: #667eea;
}

.z4a951btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
}

.z4a951btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.z4a951btn-secondary:hover {
    background: white;
    color: #667eea;
}

.z4a951phone-mockup {
    /* background: #fff; */
    /* border-radius: 22px; */
    padding: 1.3rem;
    /* box-shadow: 0 10px 20px rgba(0,0,0,0.09); */
    text-align: center;
    color: #333;
    position: relative;
    overflow: hidden;
}

.z4a951app-screenshot {
    width: 100%;
    max-width: 320px;
    height: auto;
    border-radius: 14px;
    display: block;
    margin: 0 auto;
    box-shadow: 0 4px 12px rgba(0,0,0,0.11);
    transition: transform 0.4s cubic-bezier(.25,.8,.25,1), box-shadow 0.4s;
}
.z4a951app-screenshot:hover,
.z4a951app-screenshot:active {
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(102,126,234,0.18);
    z-index: 2;
}

.z4a951app-icon {
    font-size: 2.5rem;
    margin-bottom: 0.7rem;
}

.z4a951phone-screen h3 {
    font-size: 1.1rem;
    margin-bottom: 0.3rem;
}

/* 下载区域 */
.z4a951download-section {
    padding: 4rem 0;
    background: white;
}

.z4a951download-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.z4a951stat-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.z4a951stat-number {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.z4a951stat-label {
    font-size: 0.9rem;
    opacity: 0.9;
}

.z4a951download-main-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.z4a951download-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.z4a951download-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.12);
}

.z4a951download-card.featured {
    border: 2px solid #667eea;
    position: relative;
}

.z4a951download-card.featured::before {
    content: '推荐';
    position: absolute;
    top: 0;
    right: 0;
    background: #667eea;
    color: white;
    padding: 0.3rem 0.8rem;
    font-size: 0.8rem;
    border-radius: 0 16px 0 12px;
}

.z4a951card-header {
    display: flex;
    align-items: center;
    padding: 1.5rem 1.5rem 1rem;
    border-bottom: 1px solid #f5f5f5;
}

.z4a951platform-icon {
    font-size: 2.5rem;
    margin-right: 1rem;
}

.z4a951platform-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: #333;
}

.z4a951version-badge {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.z4a951card-content {
    padding: 1rem 1.5rem;
}

.z4a951card-content p {
    color: #666;
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.z4a951feature-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.z4a951tag {
    background: #f8f9fa;
    color: #667eea;
    padding: 0.3rem 0.7rem;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: 500;
}

.z4a951version-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    padding: 0.8rem;
    border-radius: 8px;
    font-size: 0.85rem;
}

.z4a951version, .z4a951size, .z4a951date {
    color: #666;
}

.z4a951card-footer {
    padding: 1rem 1.5rem 1.5rem;
    display: flex;
    gap: 0.8rem;
}

.z4a951download-btn {
    padding: 0.7rem 1.2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    flex: 1;
    text-align: center;
}

.z4a951download-btn.primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.z4a951download-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.z4a951download-btn.secondary {
    background: #f8f9fa;
    color: #667eea;
    border: 1px solid #e9ecef;
}

.z4a951download-btn.secondary:hover {
    background: #667eea;
    color: white;
}

.z4a951download-mobile-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.z4a951download-card.mobile {
    border: 1px solid #e9ecef;
}

.z4a951download-other-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.z4a951download-card.other {
    border: 1px solid #e9ecef;
}

.z4a951download-card.other .card-header {
    padding: 1rem 1.5rem 0.8rem;
}

.z4a951download-card.other .platform-icon {
    font-size: 2rem;
}

.z4a951download-card.other .platform-info h3 {
    font-size: 1rem;
}

.z4a951download-card.other .card-content {
    padding: 0.8rem 1.5rem;
}

.z4a951download-card.other .card-footer {
    padding: 0.8rem 1.5rem 1.2rem;
}

.z4a951download-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    background: #f8f9fa;
    padding: 2rem;
    border-radius: 16px;
}

.z4a951info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.z4a951info-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.z4a951info-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: #333;
}

.z4a951info-content p {
    color: #666;
    font-size: 0.9rem;
    line-height: 1.5;
}

@media (max-width: 1024px) {
    .z4a951download-main-grid,
    .z4a951download-mobile-grid {
        grid-template-columns: 1fr;
    }
    
    .z4a951download-other-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .z4a951download-info {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .z4a951download-stats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .z4a951download-other-grid {
        grid-template-columns: 1fr;
    }
    
    .card-header {
        padding: 1rem 1rem 0.8rem;
    }
    
    .card-content {
        padding: 0.8rem 1rem;
    }
    
    .card-footer {
        padding: 0.8rem 1rem 1rem;
        flex-direction: column;
    }
    
    .download-btn {
        width: 100%;
    }
    
    .info-item {
        flex-direction: column;
        text-align: center;
    }
    
    .info-icon {
        margin-bottom: 0.5rem;
    }
}

@media (max-width: 480px) {
    .z4a951download-section {
        padding: 2rem 0;
    }
    
    .z4a951download-stats {
        margin-bottom: 2rem;
    }
    
    .stat-card {
        padding: 1rem;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .download-info {
        grid-template-columns: 1fr;
        gap: 0.7rem;
        padding: 0.7rem;
    }
    .info-item {
        flex-direction: column;
        align-items: center;
        gap: 0.3rem;
        text-align: center;
    }
    .info-icon {
        font-size: 1.3rem;
        margin-bottom: 0.2rem;
    }
    .info-content h4 {
        font-size: 0.98rem;
        margin-bottom: 0.2rem;
    }
    .info-content p {
        font-size: 0.85rem;
    }
}

/* 功能特色 */
.z4a951features-section {
    padding: 0.6rem 0;
}

.z4a951features-section .section-header {
    text-align: center;
}

.z4a951features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.z4a951feature-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease;
}

.z4a951feature-card:hover {
    transform: translateY(-5px);
}

.z4a951feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.z4a951feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: #333;
}

.z4a951feature-card p {
    color: #666;
    line-height: 1.6;
}

/* 使用指南 */
.z4a951guide-section {
    padding: 5rem 0;
    background: white;
}

.z4a951guide-steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.z4a951step {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.z4a951step:hover {
    transform: translateY(-3px);
}

.z4a951step-number {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.z4a951step-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: #333;
}

.z4a951step-content p {
    color: #666;
    line-height: 1.5;
}

.z4a951guide-extra {
    list-style: disc inside;
    padding: 0;
    margin: 0.2rem 0 0 0;
    color: #999;
    font-size: 0.75rem;
    text-align: left;
    line-height: 1.5;
}
.z4a951guide-mini-card ul.guide-extra {
    width: 100%;
    margin-top: 0.2rem;
    margin-bottom: 0.1rem;
}
.z4a951guide-mini-card ul.guide-extra li {
    margin-left: 0.7em;
    margin-bottom: 0.1em;
}

/* 关于我们 */
.z4a951about-section {
    padding: 5rem 0;
    background: #f8f9fa;
}

.z4a951about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.z4a951about-text h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #333;
}

.z4a951about-text p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.z4a951about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.z4a951about-feature {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.z4a951feature-dot {
    color: #667eea;
    font-weight: 700;
}

.z4a951about-stats {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.z4a951stat-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.z4a951stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.z4a951stat-label {
    color: #666;
    font-size: 1.1rem;
}

/* 页脚 */
.z4a951footer {
    background: #2c3e50;
    color: white;
    padding: 1.2rem 0 0.7rem;
}

.z4a951footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.z4a951footer-section h3,
.z4a951footer-section h4 {
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.z4a951footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.z4a951footer-section ul {
    list-style: none;
}

.z4a951footer-section ul li {
    margin-bottom: 0.5rem;
}

.z4a951footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.z4a951footer-section ul li a:hover {
    color: #ecf0f1;
}

.z4a951footer-bottom {
    border-top: 1px solid #34495e;
    padding-top: 1rem;
    text-align: center;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .z4a951nav {
        position: static;
        background: none;
        padding: 0;
        margin-top: 0.2rem;
        overflow-x: auto;
        white-space: nowrap;
        box-shadow: none;
        width: 100%;
        z-index: 1;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE 10+ */
    }
    .z4a951nav::-webkit-scrollbar {
        display: none; /* Chrome/Safari/Webkit */
    }
    .z4a951nav ul {
        display: flex !important;
        flex-direction: row !important;
        flex-wrap: nowrap;
        gap: 0.7rem;
        padding: 0;
        margin: 0;
        width: max-content;
    }
    .z4a951nav li {
        display: inline-block;
        margin: 0;
        padding: 0;
    }
    .z4a951nav a {
        font-size: 0.92rem;
        padding: 0.2rem 0.5rem;
        background: none;
        border: none;
        text-decoration: none;
        color: white;
        box-shadow: none;
        line-height: 1.6;
        white-space: nowrap;
        min-width: unset;
    }
    .z4a951header-content {
        flex-direction: column;
        align-items: flex-start;
    }
    .z4a951logo {
        margin-bottom: 0.1rem;
    }
    .z4a951main {
        margin-top: 60px;
    }
    /* 移除多余的竖排样式 */
    .z4a951nav.active,
    .z4a951nav ul.active {
        transform: none;
        opacity: 1;
        visibility: visible;
    }
}

@media (max-width: 480px) {
    .z4a951container {
        padding: 0 15px;
    }
    
    .z4a951hero {
        padding: 2rem 0;
    }
    
    .z4a951hero-text h2 {
        font-size: 1.8rem;
    }
    
    .z4a951btn {
        padding: 0.8rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .download-card,
    .feature-card {
        padding: 1.5rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .footer {
        padding: 0.7rem 0 0.3rem;
    }
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-bottom: 1rem;
        text-align: center;
    }
    .footer-section h3, .footer-section h4 {
        margin-bottom: 0.5rem;
        font-size: 1.05rem;
    }
    .footer-section p, .footer-section ul li {
        font-size: 0.92rem;
    }
    .footer-bottom {
        padding-top: 0.5rem;
        font-size: 0.85rem;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.z4a951download-card,
.z4a951feature-card,
.z4a951step {
    animation: fadeInUp 0.6s ease forwards;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: #667eea;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #5a6fd8;
}

/* 焦点样式 */
a:focus,
button:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* 加载动画 */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease;
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* 新闻资讯区 */
.z4a951news-section {
    padding: 4rem 0;
    background: #fff;
}
.z4a951news-list {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}
.z4a951news-item {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: box-shadow 0.3s;
}
.z4a951news-item:hover {
    box-shadow: 0 8px 24px rgba(102,126,234,0.10);
}
.z4a951news-item h3 {
    font-size: 1.1rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}
.z4a951news-item p {
    color: #555;
    font-size: 0.98rem;
}

/* FAQ区 */
.z4a951faq-section {
    padding: 0.6rem 0;
}
.z4a951faq-list {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}
.z4a951faq-item h4 {
    color: #764ba2;
    font-size: 1.05rem;
    margin-bottom: 0.3rem;
}
.z4a951faq-item p {
    color: #444;
    font-size: 0.98rem;
}

/* 用户评价区 */
.z4a951reviews-section {
    padding: 4rem 0;
    background: #fff;
}
.z4a951reviews-list {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 2rem;
}
.z4a951review-item {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    font-size: 1rem;
}
.z4a951review-user {
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
}
.z4a951review-text {
    color: #333;
    font-style: italic;
}

/* 安全承诺区 */
.z4a951security-section {
    padding: 4rem 0;
    background: #f8f9fa;
}
.z4a951security-list {
    max-width: 700px;
    margin: 0 auto;
    list-style: none;
    padding-left: 0;
}
.z4a951security-list li {
    padding: 0.7rem 0 0.7rem 2rem;
    position: relative;
    color: #333;
    font-size: 1rem;
}
.z4a951security-list li:before {
    content: '✔';
    color: #667eea;
    position: absolute;
    left: 0;
    font-weight: bold;
}

/* 下载流程图区 */
.z4a951flow-section {
    padding: 4rem 0;
    background: #fff;
}
.z4a951flow-steps {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 2rem;
    flex-wrap: wrap;
}
.z4a951flow-step {
    background: #f8f9fa;
    border-radius: 12px;
    padding: 1.2rem 1.5rem;
    text-align: center;
    min-width: 110px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.z4a951flow-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}
.z4a951flow-desc {
    color: #764ba2;
    font-size: 1rem;
}

/* 合作伙伴区 */
.z4a951partners-section {
    padding: 0.6rem 0;
}
.z4a951partners-list {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-top: 2rem;
}
.z4a951partner-item {
    background: #fff;
    border-radius: 10px;
    padding: 1rem 2rem;
    color: #667eea;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    margin-bottom: 1rem;
}

/* 响应式：新闻、评价、流程图多列变单列 */
@media (max-width: 900px) {
    .z4a951news-list,
    .z4a951reviews-list {
        grid-template-columns: 1fr;
    }
    .z4a951flow-steps {
        flex-direction: column;
        align-items: center;
        gap: 1.2rem;
    }
}

/* 下载小卡片紧凑风格 */
.z4a951download-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.1rem;
    margin-bottom: 2rem;
}
.z4a951download-mini-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.07);
    padding: 0.7rem 0.5rem 0.7rem 0.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: box-shadow 0.3s, transform 0.3s;
    border: 1px solid #f0f0f0;
    min-height: 180px;
}
.z4a951download-mini-card:hover {
    box-shadow: 0 8px 20px rgba(102,126,234,0.13);
    transform: translateY(-3px) scale(1.025);
}
.z4a951mini-icon {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}
.z4a951mini-title {
    font-size: 0.98rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.12rem;
}
.z4a951mini-desc {
    font-size: 0.82rem;
    color: #666;
    margin-bottom: 0.3rem;
}
.z4a951mini-features {
    list-style: none;
    padding: 0;
    margin: 0 0 0.4rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.12rem;
}
.z4a951mini-features li {
    font-size: 0.75rem;
    color: #764ba2;
    background: #f8f9fa;
    border-radius: 8px;
    padding: 0.12rem 0.4rem;
    display: inline-block;
    margin: 0 auto;
}
.z4a951mini-meta {
    font-size: 0.75rem;
    color: #999;
    margin-bottom: 0.4rem;
}
.z4a951mini-btn {
    display: inline-block;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    border-radius: 16px;
    padding: 0.32rem 0.9rem;
    font-size: 0.85rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s, box-shadow 0.2s;
    box-shadow: 0 1px 4px rgba(102,126,234,0.08);
}
.z4a951mini-btn:hover {
    background: #667eea;
    color: #fff;
    box-shadow: 0 2px 8px rgba(102,126,234,0.13);
}
.z4a951mini-extra {
    font-size: 0.72rem;
    color: #bbb;
    margin-bottom: 0.15rem;
    line-height: 1.4;
}
@media (max-width: 1200px) {
    .z4a951download-card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 900px) {
    .z4a951download-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .z4a951download-card-grid {
        grid-template-columns: 1fr;
    }
    .z4a951download-mini-card {
        min-height: 0;
        padding: 0.6rem 0.2rem;
    }
}

.z4a951download-section .z4a951section-header {
    text-align: center;
}

.z4a951features-card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.1rem;
    margin-bottom: 2rem;
}
.z4a951feature-mini-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.07);
    padding: 0.7rem 0.5rem 0.7rem 0.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: box-shadow 0.3s, transform 0.3s;
    border: 1px solid #f0f0f0;
    min-height: 160px;
}
.z4a951feature-mini-card:hover {
    box-shadow: 0 8px 20px rgba(102,126,234,0.13);
    transform: translateY(-3px) scale(1.025);
}
.z4a951feature-icon {
    font-size: 1.5rem;
    margin-bottom: 0.3rem;
}
.z4a951feature-title {
    font-size: 0.98rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.12rem;
}
.z4a951feature-desc {
    font-size: 0.82rem;
    color: #666;
    margin-bottom: 0.3rem;
}
.z4a951feature-extra {
    font-size: 0.72rem;
    color: #bbb;
    margin-bottom: 0.1rem;
    line-height: 1.4;
}
@media (max-width: 1200px) {
    .z4a951features-card-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 900px) {
    .z4a951features-card-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 600px) {
    .z4a951features-card-grid {
        grid-template-columns: 1fr;
    }
    .z4a951feature-mini-card {
        min-height: 0;
        padding: 0.6rem 0.2rem;
    }
}

/* 新闻资讯卡片式布局 */
.z4a951news-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 24px;
}
.z4a951news-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px 14px 14px 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    min-height: 140px;
    transition: box-shadow 0.2s;
}
.z4a951news-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.z4a951news-card-title {
    font-size: 1.08rem;
    font-weight: 600;
    margin-bottom: 6px;
    color: #1a2233;
}
.z4a951news-card-meta {
    font-size: 0.92rem;
    color: #888;
    margin-bottom: 8px;
}
.z4a951news-card-desc {
    font-size: 0.98rem;
    color: #333;
    flex: 1;
    line-height: 1.6;
}
.z4a951news-link {
    color: #2b7cff;
    text-decoration: none;
    font-size: 0.95em;
    margin-left: 4px;
}
.z4a951news-link:hover {
    text-decoration: underline;
}
@media (max-width: 600px) {
    .z4a951news-card-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .z4a951news-card {
        padding: 12px 8px 10px 10px;
        min-height: 100px;
    }
    .z4a951news-card-title {
        font-size: 1rem;
    }
    .z4a951news-card-desc {
        font-size: 0.93rem;
    }
}

.z4a951news-section .section-header {
    text-align: center;
}

/* FAQ卡片式布局 */
.z4a951faq-section .section-header {
    text-align: center;
}
.z4a951faq-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 16px;
    margin-top: 24px;
}
.z4a951faq-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px 14px 14px 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    min-height: 100px;
    transition: box-shadow 0.2s;
}
.z4a951faq-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.z4a951faq-q {
    font-size: 1.05rem;
    font-weight: 600;
    color: #1a2233;
    margin-bottom: 6px;
}
.z4a951faq-a {
    font-size: 0.97rem;
    color: #333;
    line-height: 1.6;
}
@media (max-width: 600px) {
    .z4a951faq-card-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .z4a951faq-card {
        padding: 12px 8px 10px 10px;
        min-height: 80px;
    }
    .z4a951faq-q {
        font-size: 1rem;
    }
    .z4a951faq-a {
        font-size: 0.93rem;
    }
}

/* 合作伙伴与技术支持卡片式布局 */
.z4a951partners-section .section-header {
    text-align: center;
}
.z4a951partners-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 24px;
}
.z4a951partners-card {
    background: #fff;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
    padding: 16px 14px 14px 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.03);
    display: flex;
    flex-direction: column;
    min-height: 120px;
    align-items: flex-start;
    transition: box-shadow 0.2s;
}
.z4a951partners-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.z4a951partners-logo {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: #f3f6fa;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    font-weight: bold;
    color: #2b7cff;
    margin-bottom: 8px;
}
.z4a951logo-placeholder {
    font-size: 1.2em;
}
.z4a951partners-title {
    font-size: 1.05rem;
    font-weight: 600;
    color: #1a2233;
    margin-bottom: 4px;
}
.z4a951partners-desc {
    font-size: 0.97rem;
    color: #333;
    margin-bottom: 6px;
    line-height: 1.6;
}
.z4a951partners-extra {
    font-size: 0.93rem;
    color: #666;
    margin: 0;
    padding-left: 18px;
    list-style: disc;
}
@media (max-width: 600px) {
    .z4a951partners-card-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .z4a951partners-card {
        padding: 12px 8px 10px 10px;
        min-height: 80px;
    }
    .z4a951partners-logo {
        width: 30px;
        height: 30px;
        font-size: 1rem;
    }
    .z4a951partners-title {
        font-size: 1rem;
    }
    .z4a951partners-desc {
        font-size: 0.93rem;
    }
}

section {
    margin: 0.6rem 0;
}
@media (max-width: 600px) {
    section {
        margin: 0.3rem 0;
    }
}

@media (max-width: 600px) {
    .z4a951partners-section {
        padding: 0.3rem 0;
    }
}

@media (max-width: 600px) {
    .z4a951faq-section {
        padding: 0.3rem 0;
    }
}

@media (max-width: 600px) {
    .z4a951features-section {
        padding: 0.3rem 0;
    }
} 

/* 紧凑型新闻时间轴样式 */
.z4a951compact-news-timeline .z4a951news-timeline {
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    margin: 0.5rem 0 0.5rem 0.5rem;
    border-left: 3px solid #667eea;
    padding-left: 1.2rem;
}
.z4a951compact-news-timeline .z4a951news-timeline-item {
    position: relative;
    padding-left: 0.5rem;
}
.z4a951compact-news-timeline .z4a951news-timeline-item::before {
    content: '';
    position: absolute;
    left: -1.1rem;
    top: 0.7rem;
    width: 0.7rem;
    height: 0.7rem;
    background: #667eea;
    border-radius: 50%;
    box-shadow: 0 0 0 2px #fff;
}
.z4a951compact-news-timeline .z4a951news-timeline-date {
    font-size: 0.98rem;
    color: #888;
    margin-bottom: 0.1rem;
}
.z4a951compact-news-timeline .z4a951news-timeline-title {
    font-size: 1.08rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 0.1rem;
}
.z4a951compact-news-timeline .z4a951news-timeline-desc {
    font-size: 0.97rem;
    color: #555;
    line-height: 1.6;
    margin-bottom: 0.2rem;
}
@media (max-width: 600px) {
    .z4a951compact-news-timeline .z4a951news-timeline {
        padding-left: 0.7rem;
        margin-left: 0.2rem;
        gap: 0.4rem;
    }
    .z4a951compact-news-timeline .z4a951news-timeline-item::before {
        left: -0.7rem;
        width: 0.5rem;
        height: 0.5rem;
    }
    .z4a951compact-news-timeline .z4a951news-timeline-date {
        font-size: 0.92rem;
    }
    .z4a951compact-news-timeline .z4a951news-timeline-title {
        font-size: 1rem;
    }
    .z4a951compact-news-timeline .z4a951news-timeline-desc {
        font-size: 0.92rem;
    }
} 

/* 资讯区块整体卡片化框架样式 */
.z4a951compact-news-timeline {
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 2px 8px rgba(102,126,234,0.07);
    padding: 1.7rem 1.2rem 1.2rem 1.2rem;
    margin-top: 1.2rem;
}
@media (max-width: 600px) {
    .z4a951compact-news-timeline {
        padding: 1.1rem 0.5rem 0.7rem 0.5rem;
        border-radius: 10px;
    }
} 

/* 资讯时间轴每条分隔、悬浮高亮、可点击样式 */
.z4a951compact-news-timeline .z4a951news-timeline-item {
    border-bottom: 1px solid #e3e8f7;
    padding-bottom: 0.7rem;
    margin-bottom: 0.7rem;
    cursor: pointer;
}
.z4a951compact-news-timeline .z4a951news-timeline-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
}
.z4a951compact-news-timeline .z4a951news-timeline-item:hover {
    background: #f6f8fe;
}
.z4a951compact-news-timeline .z4a951news-timeline-title a {
    color: #2b7cff;
    text-decoration: none;
    transition: color 0.2s;
}
.z4a951compact-news-timeline .z4a951news-timeline-title a:hover {
    color: #764ba2;
    text-decoration: underline;
} 

.z4a951features-section .z4a951section-header {
    text-align: center;
}
.z4a951news-section .z4a951section-header {
    text-align: center;
}
.z4a951faq-section .z4a951section-header {
    text-align: center;
}