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

html {
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.za5dddcontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.za5dddheader {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.za5dddheader .za5dddcontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 80px;
    height: auto;
    padding-top: 12px;
    padding-bottom: 12px;
    gap: 16px;
}

.za5dddlogo {
    flex-shrink: 0;
}

.za5dddlogo h1 {
    font-size: clamp(18px, 2.5vw, 24px);
    color: #1a73e8;
    line-height: 1.3;
}

.za5dddmain-nav {
    flex: 1;
    min-width: 0;
}

.za5dddmain-nav ul {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    list-style: none;
    gap: 4px 14px;
}

.za5dddmain-nav li {
    margin-left: 0;
}

.za5dddmain-nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 0.9em;
    white-space: nowrap;
    transition: color 0.3s;
}

.za5dddmain-nav a:hover {
    color: #1a73e8;
}

/* 主要内容区域 */
main {
    margin-top: 80px;
}

/* 英雄区域 */
.za5dddhero {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 64px 0 72px;
    position: relative;
    overflow: hidden;
}

.za5dddhero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px 40px;
    align-items: center;
}

.za5dddhero-text {
    max-width: 560px;
    min-width: 0;
}

.za5dddhero-text h2 {
    font-size: clamp(1.6em, 3.5vw, 2.4em);
    margin-bottom: 16px;
    line-height: 1.35;
    word-break: break-word;
}

.za5dddhero-text p {
    font-size: clamp(0.95em, 1.8vw, 1.1em);
    margin-bottom: 14px;
    opacity: 0.9;
}

.za5dddhero-intro {
    font-size: 0.95em;
    margin-bottom: 20px;
    opacity: 0.85;
    line-height: 1.65;
}

.za5dddsection-desc {
    text-align: center;
    color: #666;
    font-size: 1em;
    margin: -30px auto 40px;
    max-width: 720px;
    line-height: 1.7;
}

.za5dddhero-image {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    min-width: 0;
}

.za5dddhero-img {
    max-width: 100%;
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
    margin: 0 auto;
    display: block;
}

.za5dddhero-img:hover {
    transform: perspective(1000px) rotateY(0deg);
}

/* 按钮样式 */
.za5dddbtn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    margin: 0 10px;
}

.za5dddbtn-primary {
    background-color: #fff;
    color: #1a73e8;
}

.za5dddbtn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.za5dddbtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 特性区域 */
.za5dddfeatures {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.za5dddfeatures h2 {
    text-align: center;
    margin-bottom: 40px;
    font-size: 2em;
    color: #1a73e8;
}

.za5dddfeatures-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

.za5dddfeature-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
    border: 1px solid #e0e0e0;
    position: relative;
}

.za5dddfeature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
    border-color: #1a73e8;
}

.za5dddfeature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #1a73e8, #0d47a1);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.za5dddfeature-card:hover::before {
    opacity: 1;
}

.za5dddfeature-header {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.za5dddfeature-icon {
    font-size: 2em;
    margin-bottom: 10px;
}

.za5dddfeature-header h3 {
    margin: 0;
    font-size: 1.4em;
    font-weight: 600;
}

.za5dddfeature-body {
    padding: 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.za5dddfeature-body p {
    color: #666;
    font-size: 1em;
    margin-bottom: 15px;
    text-align: center;
}

.za5dddfeature-list {
    list-style: none;
    margin: 0;
    padding: 0;
    flex-grow: 1;
}

.za5dddfeature-list li {
    display: flex;
    align-items: center;
    padding: 8px 0;
    color: #333;
    font-size: 0.95em;
}

.za5dddlist-icon {
    color: #1a73e8;
    margin-right: 10px;
    font-weight: bold;
}

/* 统计数据区域 */
.za5dddstatistics {
    background: linear-gradient(135deg, #0d47a1 0%, #1a73e8 100%);
    color: white;
    padding: 60px 0;
}

.za5dddstat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.za5dddstat-item h3 {
    font-size: 2.5em;
    margin-bottom: 10px;
    color: #fff;
}

.za5dddstat-item p {
    font-size: 1.1em;
    opacity: 0.9;
}

/* 新手指南 */
.za5dddguide {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.za5dddguide h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2em;
    color: #1a73e8;
}

.za5dddguide-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.za5dddguide-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.za5dddguide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.za5dddguide-icon {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-align: center;
    color: #1a73e8;
}

.za5dddguide-card h3 {
    color: #1a73e8;
    margin-bottom: 15px;
    font-size: 1.4em;
    text-align: center;
}

.za5dddguide-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.za5dddguide-content p {
    color: #666;
    margin-bottom: 20px;
    text-align: center;
    flex: 1;
}

.za5dddguide-steps-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5dddguide-steps-list li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.za5dddguide-steps-list li:hover {
    background: #e8f0fe;
}

.za5dddguide-steps-list .step-number {
    width: 30px;
    height: 30px;
    background: #1a73e8;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 0.9em;
    font-weight: bold;
    flex-shrink: 0;
}

.za5dddguide-steps-list li span:last-child {
    flex: 1;
    font-size: 0.95em;
    color: #333;
}

.za5dddguide-tips {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.za5dddtip-item {
    display: flex;
    align-items: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.za5dddtip-item:hover {
    transform: translateY(-3px);
}

.za5dddtip-icon {
    font-size: 1.8em;
    margin-right: 15px;
}

.za5dddtip-content h4 {
    color: #1a73e8;
    margin-bottom: 5px;
    font-size: 1.1em;
}

.za5dddtip-content p {
    color: #666;
    font-size: 0.9em;
    margin: 0;
}

/* 版本信息 */
.za5dddversion-info {
    margin: 15px 0;
    font-size: 0.9em;
    color: #666;
}

.za5dddversion-info span {
    display: block;
    margin: 5px 0;
}

/* FAQ部分样式更新 */
.za5dddfaq {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.za5dddfaq h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2em;
    color: #1a73e8;
}

.za5dddfaq-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 40px;
}

.za5dddfaq-category {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.za5dddfaq-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.za5dddcategory-header {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.za5dddcategory-icon {
    font-size: 2em;
    margin-bottom: 10px;
}

.za5dddcategory-header h3 {
    margin: 0;
    font-size: 1.4em;
}

.za5dddfaq-list {
    padding: 20px;
}

.za5dddfaq-item {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.za5dddfaq-item:hover {
    background: #e8f0fe;
}

.za5dddfaq-question {
    display: flex;
    align-items: flex-start;
    margin-bottom: 10px;
}

.za5dddquestion-icon {
    background: #1a73e8;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 10px;
    flex-shrink: 0;
}

.za5dddfaq-question h4 {
    margin: 0;
    color: #333;
    font-size: 1.1em;
    line-height: 1.4;
}

.za5dddfaq-answer {
    display: flex;
    align-items: flex-start;
    padding-left: 34px;
}

.za5dddanswer-icon {
    background: #4caf50;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 10px;
    flex-shrink: 0;
}

.za5dddfaq-answer p {
    margin: 0;
    color: #666;
    font-size: 0.95em;
    line-height: 1.6;
}

.za5dddfaq-contact {
    margin-top: 40px;
    text-align: center;
}

.za5dddcontact-card {
    display: inline-flex;
    align-items: center;
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    transition: transform 0.3s ease;
}

.za5dddcontact-card:hover {
    transform: translateY(-3px);
}

.za5dddcontact-icon {
    font-size: 2.5em;
    margin-right: 20px;
}

.za5dddcontact-content h4 {
    color: #1a73e8;
    margin: 0 0 5px;
    font-size: 1.2em;
}

.za5dddcontact-content p {
    color: #666;
    margin: 0 0 15px;
}

.za5dddcontact-content .za5dddbtn {
    padding: 10px 25px;
}

/* 响应式设计更新 */
@media (max-width: 1200px) {
    .za5dddfaq-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .za5dddfaq {
        padding: 40px 0;
    }
    
    .za5dddfaq-container {
        grid-template-columns: 1fr;
    }
    
    .za5dddcategory-header {
        padding: 15px;
    }
    
    .za5dddfaq-list {
        padding: 15px;
    }
    
    .za5dddcontact-card {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }
    
    .za5dddcontact-icon {
        margin-right: 0;
        margin-bottom: 15px;
    }
}

@media (max-width: 480px) {
    .za5dddfaq h2 {
        font-size: 1.8em;
    }
    
    .za5dddfaq-item {
        padding: 12px;
    }
    
    .za5dddfaq-question h4 {
        font-size: 1em;
    }
    
    .za5dddfaq-answer p {
        font-size: 0.9em;
    }
}

@media (max-width: 992px) {
    .za5dddfeatures-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 1200px) {
    .za5dddfeatures-grid {
        grid-template-columns: repeat(2, 1fr);
        padding: 0 20px;
    }

    .za5dddguide-container {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .za5dddguide-tips {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .za5dddfeatures {
        padding: 40px 0;
    }

    .za5dddfeatures h2 {
        font-size: 1.8em;
        margin-bottom: 30px;
    }

    .za5dddfeatures-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .za5dddfeature-header {
        padding: 15px;
    }

    .za5dddfeature-header h3 {
        font-size: 1.3em;
    }

    .za5dddfeature-body {
        padding: 15px;
    }

    .za5dddguide-card {
        padding: 20px;
    }
    
    .za5dddguide-icon {
        font-size: 2em;
    }
}

@media (max-width: 480px) {
    .za5dddfeatures h2 {
        font-size: 1.6em;
    }

    .za5dddfeature-card {
        margin: 0 10px;
    }
}

/* 下载中心样式 */
.za5ddddownload-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.za5ddddownload-section h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2em;
    color: #1a73e8;
}

.za5ddddownload-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.za5ddddownload-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    overflow: hidden;
}

.za5ddddownload-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.za5ddddownload-header {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 30px;
    text-align: center;
}

.za5ddddownload-icon {
    font-size: 2.5em;
    margin-bottom: 15px;
}

.za5ddddownload-header h3 {
    margin: 0;
    font-size: 1.6em;
    margin-bottom: 10px;
}

.za5ddddownload-subtitle {
    opacity: 0.9;
    font-size: 1.1em;
}

.za5ddddownload-content {
    padding: 30px;
}

.za5dddversion-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 25px;
    background: #f8f9fa;
    padding: 15px;
    border-radius: 8px;
}

.za5dddversion-item {
    text-align: center;
}

.za5dddversion-label {
    display: block;
    color: #666;
    font-size: 0.9em;
    margin-bottom: 5px;
}

.za5dddversion-value {
    color: #1a73e8;
    font-weight: 600;
    font-size: 1.1em;
}

.za5ddddownload-features {
    margin-bottom: 25px;
}

.za5ddddownload-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5ddddownload-features li {
    display: flex;
    align-items: center;
    padding: 10px;
    margin-bottom: 8px;
    background: #f8f9fa;
    border-radius: 6px;
    transition: background-color 0.3s ease;
}

.za5ddddownload-features li:hover {
    background: #e8f0fe;
}

.za5dddfeature-icon {
    color: #1a73e8;
    margin-right: 10px;
    font-weight: bold;
}

.za5ddddownload-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.za5ddddownload-buttons .za5dddbtn {
    flex: 1;
    text-align: center;
    padding: 12px 20px;
}

.za5ddddownload-tips {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.za5dddtip-card {
    display: flex;
    align-items: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.za5dddtip-card:hover {
    transform: translateY(-3px);
}

.za5dddtip-icon {
    font-size: 1.8em;
    margin-right: 15px;
}

.za5dddtip-content h4 {
    color: #1a73e8;
    margin-bottom: 5px;
    font-size: 1.1em;
}

.za5dddtip-content p {
    color: #666;
    font-size: 0.9em;
    margin: 0;
}

/* 下载中心响应式设计 */
@media (max-width: 1200px) {
    .za5ddddownload-container {
        grid-template-columns: 1fr;
    }
    
    .za5ddddownload-tips {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .za5ddddownload-section {
        padding: 40px 0;
    }
    
    .za5ddddownload-header {
        padding: 20px;
    }
    
    .za5ddddownload-content {
        padding: 20px;
    }
    
    .za5dddversion-info {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .za5ddddownload-buttons {
        flex-direction: column;
    }
    
    .za5ddddownload-tips {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .za5ddddownload-section h2 {
        font-size: 1.8em;
    }
    
    .za5dddtip-card {
        flex-direction: column;
        text-align: center;
    }
    
    .za5dddtip-icon {
        margin-right: 0;
        margin-bottom: 10px;
    }
}

/* 页脚样式更新 */
.za5dddfooter {
    background-color: #1a1a1a;
    color: #fff;
    padding: 60px 0 20px;
}

.za5dddfooter-main {
    display: grid;
    grid-template-columns: 1.5fr 3fr;
    gap: 40px;
    margin-bottom: 40px;
}

.za5dddfooter-brand h3 {
    font-size: 1.8em;
    margin-bottom: 15px;
    color: #fff;
}

.za5dddfooter-brand p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 20px;
}

.za5dddfooter-social {
    display: flex;
    gap: 15px;
}

.za5dddsocial-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.za5dddsocial-link:hover {
    background: #1a73e8;
    transform: translateY(-3px);
}

.za5dddsocial-icon {
    font-size: 1.2em;
}

.za5dddfooter-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.za5dddfooter-column h4 {
    color: #fff;
    font-size: 1.1em;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.za5dddfooter-column h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: #1a73e8;
}

.za5dddfooter-column ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5dddfooter-column ul li {
    margin-bottom: 12px;
}

.za5dddfooter-column ul li a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color 0.3s ease;
    font-size: 0.95em;
}

.za5dddfooter-column ul li a:hover {
    color: #1a73e8;
}

.za5dddfooter-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
}

.za5dddfooter-legal {
    display: flex;
    gap: 20px;
}

.za5dddfooter-legal a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.za5dddfooter-legal a:hover {
    color: #1a73e8;
}

.za5dddfooter-copyright p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9em;
    margin: 0;
}

/* 页脚响应式设计 */
@media (max-width: 1200px) {
    .za5dddfooter-main {
        grid-template-columns: 1fr;
    }
    
    .za5dddfooter-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .za5dddfooter {
        padding: 40px 0 20px;
    }
    
    .za5dddfooter-main {
        gap: 30px;
    }
    
    .za5dddfooter-brand {
        text-align: center;
        padding-bottom: 20px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .za5dddfooter-social {
        justify-content: center;
        margin-top: 20px;
    }
    
    .za5dddfooter-links {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin-top: 20px;
    }
    
    .za5dddfooter-column {
        text-align: left;
    }
    
    .za5dddfooter-column h4 {
        font-size: 1.1em;
        margin-bottom: 15px;
    }
    
    .za5dddfooter-column ul li {
        margin-bottom: 10px;
    }
    
    .za5dddfooter-bottom {
        flex-direction: column;
        gap: 15px;
        text-align: center;
        padding-top: 20px;
    }
    
    .za5dddfooter-legal {
        justify-content: center;
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .za5dddfooter-legal a {
        font-size: 0.9em;
        padding: 5px 10px;
    }
    
    .za5dddfooter-copyright {
        width: 100%;
    }
    
    .za5dddfooter-copyright p {
        font-size: 0.85em;
        line-height: 1.5;
    }
}

@media (max-width: 480px) {
    .za5dddfooter {
        padding: 30px 0 15px;
    }
    
    .za5dddfooter-links {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .za5dddfooter-column {
        text-align: center;
    }
    
    .za5dddfooter-column h4 {
        position: relative;
        display: inline-block;
        margin-bottom: 15px;
    }
    
    .za5dddfooter-column h4::after {
        content: '';
        position: absolute;
        left: 50%;
        bottom: -5px;
        transform: translateX(-50%);
        width: 30px;
        height: 2px;
        background: #1a73e8;
    }
    
    .za5dddfooter-column ul li {
        margin-bottom: 8px;
    }
    
    .za5dddfooter-column ul li a {
        font-size: 0.9em;
    }
    
    .za5dddfooter-legal {
        flex-direction: column;
        gap: 10px;
    }
    
    .za5dddfooter-legal a {
        display: block;
        padding: 8px 0;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .za5dddfooter-legal a:last-child {
        border-bottom: none;
    }
    
    .za5dddfooter-copyright p {
        font-size: 0.8em;
        padding: 0 15px;
    }
}

/* 响应式设计优化 */
@media (max-width: 768px) {
    /* 导航菜单响应式 */
    .za5dddmain-nav {
        display: none;
    }
    
    /* 英雄区域响应式 */
    .za5dddhero {
        padding: 60px 0;
    }
    
    .za5dddhero h2 {
        font-size: 2em;
    }
    
    .za5dddhero p {
        font-size: 1.1em;
    }
    
    /* 按钮响应式 */
    .za5ddddownload-buttons {
        flex-direction: column;
        gap: 10px;
    }
    
    .za5ddddownload-buttons .za5dddbtn {
        width: 100%;
        margin: 0;
    }
    
    /* 统计数字响应式 */
    .za5dddstat-item h3 {
        font-size: 2.2em;
    }
    
    .za5dddstat-item p {
        font-size: 1em;
    }
    
    /* 特性卡片响应式 */
    .za5dddfeature-card {
        margin: 0 10px;
    }
    
    .za5dddfeature-header {
        padding: 15px;
    }
    
    .za5dddfeature-body {
        padding: 15px;
    }
    
    /* 指南卡片响应式 */
    .za5dddguide-card {
        padding: 20px;
    }
    
    .za5dddguide-icon {
        font-size: 2em;
    }
    
    /* FAQ响应式 */
    .za5dddfaq-container {
        grid-template-columns: 1fr;
    }
    
    .za5dddcategory-header {
        padding: 15px;
    }
    
    .za5dddfaq-list {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    /* 统计数字响应式 */
    .za5dddstat-item h3 {
        font-size: 2em;
    }
    
    .za5dddstat-item p {
        font-size: 0.9em;
    }
    
    /* 页脚响应式优化 */
    .za5dddfooter-brand {
        text-align: center;
    }
    
    .za5dddfooter-social {
        justify-content: center;
        margin-bottom: 20px;
    }
    
    .za5dddfooter-links {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .za5dddfooter-column h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .za5dddfooter-legal {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .za5dddcontact-item {
        flex-direction: column;
        text-align: center;
    }
    
    .za5dddcontact-icon {
        margin-bottom: 10px;
    }
    
    /* 下载按钮响应式 */
    .za5ddddownload-buttons .za5dddbtn {
        width: 100%;
        margin: 5px 0;
    }
    
    /* 提示卡片响应式 */
    .za5dddtip-card {
        flex-direction: column;
        text-align: center;
    }
    
    .za5dddtip-icon {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    /* 版本信息响应式 */
    .za5dddversion-info {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .za5dddversion-item {
        padding: 10px 0;
        border-bottom: 1px solid rgba(0,0,0,0.1);
    }
    
    .za5dddversion-item:last-child {
        border-bottom: none;
    }
}

/* 添加汉堡菜单样式 */
.za5dddmobile-menu-toggle {
    display: none;
    font-size: 1.5em;
    cursor: pointer;
    color: #1a73e8;
}

@media (max-width: 768px) {
    .za5dddmobile-menu-toggle {
        display: block;
        font-size: 1.5em;
        cursor: pointer;
        color: #1a73e8;
        z-index: 2001;
        position: relative;
        pointer-events: auto;
    }
    .za5dddmain-nav {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: white;
        padding: 20px;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        z-index: 2000;
        pointer-events: auto;
    }
    .za5dddmain-nav.active {
        display: block;
    }
    .za5dddmain-nav ul {
        flex-direction: column;
        gap: 15px;
    }
    .za5dddmain-nav li {
        margin: 0;
    }
    .za5dddmain-nav a {
        display: block;
        padding: 10px 0;
        font-size: 1.1em;
    }
    .za5dddmain-nav a:hover {
        color: #1a73e8;
        background: #f8f9fa;
    }
}

/* 优化触摸设备交互 */
@media (hover: none) {
    .za5dddfeature-card:hover,
    .za5dddguide-card:hover,
    .za5ddddownload-card:hover,
    .za5dddtip-card:hover {
        transform: none;
    }
    
    .za5dddbtn:active,
    .za5dddsocial-link:active,
    .za5dddfooter-column ul li a:active {
        opacity: 0.8;
    }
    
    .za5dddmain-nav a:active {
        background: #f8f9fa;
    }
}

/* 优化大屏幕显示 */
@media (min-width: 1400px) {
    .za5dddcontainer {
        max-width: 1320px;
    }
    
    .za5dddfeatures-grid,
    .za5dddguide-container,
    .za5dddfaq-container {
        gap: 40px;
    }
    
    .za5dddfeature-card,
    .za5dddguide-card,
    .za5dddfaq-category {
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    
    .za5dddfeature-card:hover,
    .za5dddguide-card:hover,
    .za5dddfaq-category:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    }
}

/* 英雄区域响应式 */
@media (max-width: 1200px) {
    .za5dddhero-content {
        gap: 30px;
    }
    
    .za5dddhero-text h2 {
        font-size: 2.2em;
    }
}

@media (max-width: 992px) {
    .za5dddhero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .za5dddhero-text {
        max-width: 100%;
    }
    
    .za5dddhero-image {
        order: -1;
        margin-bottom: 30px;
    }
    
    .za5dddhero-img {
        max-width: 80%;
    }
}

@media (max-width: 768px) {
    .za5dddhero {
        padding: 60px 0;
    }
    
    .za5dddhero-text h2 {
        font-size: 2em;
    }
    
    .za5dddhero-text p {
        font-size: 1.1em;
    }
    
    .za5dddhero-img {
        max-width: 95vw;
        width: 95vw;
        height: auto;
        margin: 0 auto 24px auto;
        display: block;
    }
}

@media (max-width: 480px) {
    .za5dddhero {
        padding: 40px 0;
    }
    
    .za5dddhero-text h2 {
        font-size: 1.8em;
    }
    
    .za5dddhero-text p {
        font-size: 1em;
    }
    
    .za5dddhero-img {
        max-width: 100%;
    }
}

/* 新手指南移动端优化 */
@media (max-width: 768px) {
    .za5dddguide {
        padding: 40px 0;
    }
    
    .za5dddguide h2 {
        font-size: 1.8em;
        margin-bottom: 30px;
    }
    
    .za5dddguide-container {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }
    
    .za5dddguide-card {
        padding: 25px;
        margin: 0;
        height: auto;
    }
    
    .za5dddguide-icon {
        font-size: 2em;
        margin-bottom: 15px;
    }
    
    .za5dddguide-card h3 {
        font-size: 1.3em;
        margin-bottom: 12px;
    }
    
    .za5dddguide-content p {
        font-size: 0.95em;
        margin-bottom: 15px;
    }
    
    .za5dddguide-steps-list {
        margin-top: 15px;
    }
    
    .za5dddguide-steps-list li {
        padding: 12px;
        margin-bottom: 10px;
    }
    
    .za5dddguide-steps-list .step-number {
        width: 28px;
        height: 28px;
        font-size: 0.9em;
    }
    
    .za5dddguide-tips {
        grid-template-columns: 1fr;
        gap: 15px;
        margin-top: 30px;
        padding: 0 15px;
    }
    
    .za5dddtip-item {
        padding: 15px;
        flex-direction: row;
        align-items: center;
        text-align: left;
    }
    
    .za5dddtip-icon {
        font-size: 1.5em;
        margin-right: 15px;
        flex-shrink: 0;
    }
    
    .za5dddtip-content {
        flex: 1;
    }
    
    .za5dddtip-content h4 {
        font-size: 1.1em;
        margin-bottom: 5px;
    }
    
    .za5dddtip-content p {
        font-size: 0.9em;
        margin: 0;
    }
}

@media (max-width: 480px) {
    .za5dddguide {
        padding: 16px 0;
    }
    .za5dddguide h2 {
        font-size: 1.2em;
        margin-bottom: 16px;
    }
    .za5dddguide-container {
        gap: 8px;
        padding: 0 4px;
    }
    .za5dddguide-card {
        padding: 10px;
        border-radius: 8px;
        box-shadow: 0 2px 6px rgba(0,0,0,0.03);
    }
    .za5dddguide-icon {
        font-size: 1.2em;
        margin-bottom: 6px;
    }
    .za5dddguide-card h3 {
        font-size: 1em;
        margin-bottom: 6px;
    }
    .za5dddguide-content p {
        font-size: 0.8em;
        margin-bottom: 8px;
    }
    .za5dddguide-steps-list li {
        padding: 6px;
        margin-bottom: 4px;
        font-size: 0.85em;
    }
    .za5dddguide-steps-list .step-number {
        width: 18px;
        height: 18px;
        font-size: 0.7em;
        margin-right: 6px;
    }
    .za5dddguide-tips {
        gap: 6px;
        margin-top: 12px;
        padding: 0 4px;
    }
    .za5dddtip-item {
        padding: 6px;
        border-radius: 6px;
    }
    .za5dddtip-icon {
        font-size: 1em;
        margin-right: 6px;
    }
    .za5dddtip-content h4 {
        font-size: 0.95em;
        margin-bottom: 2px;
    }
    .za5dddtip-content p {
        font-size: 0.75em;
    }
    .za5ddddownload-buttons .za5dddbtn {
        font-size: 0.95em;
        padding: 10px 0;
    }
    .za5dddguide-card,
    .za5dddtip-item {
        transition: none;
    }
}

/* 优化指南卡片样式 */
.za5dddguide-card {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.za5dddguide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.za5dddguide-icon {
    font-size: 2.5em;
    margin-bottom: 20px;
    text-align: center;
    color: #1a73e8;
}

.za5dddguide-card h3 {
    color: #1a73e8;
    margin-bottom: 15px;
    font-size: 1.4em;
    text-align: center;
}

.za5dddguide-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.za5dddguide-content p {
    color: #666;
    margin-bottom: 20px;
    text-align: center;
    flex: 1;
}

.za5dddguide-steps-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5dddguide-steps-list li {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 12px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.za5dddguide-steps-list li:hover {
    background: #e8f0fe;
}

.za5dddguide-steps-list .step-number {
    width: 30px;
    height: 30px;
    background: #1a73e8;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
    font-size: 0.9em;
    font-weight: bold;
    flex-shrink: 0;
}

.za5dddguide-steps-list li span:last-child {
    flex: 1;
    font-size: 0.95em;
    color: #333;
}

.za5dddguide-tips {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.za5dddtip-item {
    display: flex;
    align-items: center;
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}

.za5dddtip-item:hover {
    transform: translateY(-3px);
}

.za5dddtip-icon {
    font-size: 1.8em;
    margin-right: 15px;
}

.za5dddtip-content h4 {
    color: #1a73e8;
    margin-bottom: 5px;
    font-size: 1.1em;
}

.za5dddtip-content p {
    color: #666;
    font-size: 0.9em;
    margin: 0;
}

/* 关于我们部分样式 */
.za5dddabout {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.za5dddabout h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2em;
    color: #1a73e8;
}

.za5dddabout-content {
    max-width: 1000px;
    margin: 0 auto;
}

.za5dddabout-text {
    text-align: center;
    margin-bottom: 40px;
}

.za5dddabout-text p {
    font-size: 1.2em;
    color: #666;
    margin-bottom: 40px;
    line-height: 1.8;
}

.za5dddabout-features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.za5dddabout-feature {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease;
}

.za5dddabout-feature:hover {
    transform: translateY(-5px);
}

.za5dddabout-feature .za5dddfeature-icon {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #1a73e8;
}

.za5dddabout-feature h3 {
    color: #333;
    margin-bottom: 10px;
    font-size: 1.3em;
}

.za5dddabout-feature p {
    color: #666;
    font-size: 0.95em;
    margin: 0;
}

/* 联系我们部分样式 */
.za5dddcontact {
    padding: 80px 0;
    background-color: white;
}

.za5dddcontact h2 {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2em;
    color: #1a73e8;
}

.za5dddcontact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
}

.za5dddcontact-info {
    display: grid;
    gap: 20px;
}

.za5dddcontact-item {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    padding: 25px;
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.za5dddcontact-item:hover {
    transform: translateX(5px);
}

.za5dddcontact-icon {
    font-size: 2em;
    margin-right: 20px;
    color: #1a73e8;
}

.za5dddcontact-text h3 {
    color: #333;
    margin-bottom: 5px;
    font-size: 1.2em;
}

.za5dddcontact-text p {
    color: #666;
    margin: 0;
    font-size: 0.95em;
}

.za5dddcontact-form {
    background: #f8f9fa;
    padding: 30px;
    border-radius: 12px;
}

.za5dddcontact-form h3 {
    color: #333;
    margin-bottom: 20px;
    font-size: 1.4em;
    text-align: center;
}

.za5dddform-group {
    margin-bottom: 20px;
}

.za5dddform-group input,
.za5dddform-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 0.95em;
    transition: border-color 0.3s ease;
}

.za5dddform-group textarea {
    height: 120px;
    resize: vertical;
}

.za5dddform-group input:focus,
.za5dddform-group textarea:focus {
    border-color: #1a73e8;
    outline: none;
}

.za5dddcontact-form .za5dddbtn {
    width: 100%;
    margin-top: 10px;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .za5dddabout-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .za5dddcontact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .za5dddabout {
        padding: 60px 0;
    }
    
    .za5dddabout h2 {
        font-size: 1.8em;
        margin-bottom: 30px;
    }
    
    .za5dddabout-text p {
        font-size: 1.1em;
    }
    
    .za5dddabout-features {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .za5dddcontact {
        padding: 60px 0;
    }
    
    .za5dddcontact h2 {
        font-size: 1.8em;
        margin-bottom: 30px;
    }
    
    .za5dddcontact-item {
        padding: 20px;
    }
    
    .za5dddcontact-form {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .za5dddabout {
        padding: 40px 0;
    }
    
    .za5dddabout h2 {
        font-size: 1.6em;
    }
    
    .za5dddabout-text p {
        font-size: 1em;
    }
    
    .za5dddabout-feature {
        padding: 20px;
    }
    
    .za5dddcontact {
        padding: 40px 0;
    }
    
    .za5dddcontact h2 {
        font-size: 1.6em;
    }
    
    .za5dddcontact-item {
        padding: 15px;
    }
    
    .za5dddcontact-icon {
        font-size: 1.5em;
        margin-right: 15px;
    }
    
    .za5dddcontact-text h3 {
        font-size: 1.1em;
    }
    
    .za5dddcontact-form {
        padding: 15px;
    }
    
    .za5dddform-group input,
    .za5dddform-group textarea {
        padding: 10px;
    }
}

/* PC端主横幅下载按钮优化 */
@media (min-width: 769px) {
  .za5dddhero .za5ddddownload-buttons {
    gap: 32px;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 32px;
  }
  .za5dddhero .za5ddddownload-buttons .za5dddbtn {
    min-width: 180px;
    font-size: 1.15em;
    padding: 18px 36px;
    border-radius: 8px;
    margin: 0;
    box-shadow: 0 2px 12px rgba(26,115,232,0.08);
  }
  .za5dddhero .za5ddddownload-buttons .za5dddbtn-primary {
    background: linear-gradient(90deg, #1a73e8 0%, #0d47a1 100%);
    color: #fff;
    border: none;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 4px 18px rgba(26,115,232,0.15);
  }
  .za5dddhero .za5ddddownload-buttons .za5dddbtn-primary:hover {
    background: linear-gradient(90deg, #0d47a1 0%, #1a73e8 100%);
    color: #fff;
    transform: translateY(-3px) scale(1.04);
    box-shadow: 0 8px 32px rgba(26,115,232,0.18);
  }
  .za5dddhero .za5ddddownload-buttons .za5dddbtn-secondary {
    background: #fff;
    color: #1a73e8;
    border: 2px solid #1a73e8;
    font-weight: 600;
    font-size: 1.08em;
    letter-spacing: 0.5px;
    box-shadow: 0 2px 8px rgba(26,115,232,0.08);
    transition: all 0.3s;
  }
  .za5dddhero .za5ddddownload-buttons .za5dddbtn-secondary:hover {
    background: #e8f0fe;
    color: #0d47a1;
    border-color: #0d47a1;
    box-shadow: 0 4px 16px rgba(26,115,232,0.13);
  }
}

/* 下载中心板块 Mac版/iOS版下载按钮高亮 */
.za5ddddownload-section .za5ddddownload-buttons .za5dddbtn-secondary {
  background: #fff;
  color: #1a73e8;
  border: 2px solid #1a73e8;
  font-weight: 600;
  font-size: 1.08em;
  letter-spacing: 0.5px;
  box-shadow: 0 2px 8px rgba(26,115,232,0.08);
  transition: all 0.3s;
}
.za5ddddownload-section .za5ddddownload-buttons .za5dddbtn-secondary:hover {
  background: #e8f0fe;
  color: #0d47a1;
  border-color: #0d47a1;
  box-shadow: 0 4px 16px rgba(26,115,232,0.13);
}

/* 主横幅图片移动端/PC端显示控制 */
@media (max-width: 768px) {
  .za5dddhero-image.za5ddddesktop-only { display: none !important; }
  .za5dddhero-image.za5dddmobile-only { display: block !important; margin: 24px auto 0; text-align: center; }
}
@media (min-width: 769px) {
  .za5dddhero-image.za5ddddesktop-only { display: flex !important; }
  .za5dddhero-image.za5dddmobile-only { display: none !important; }
}

/* 导航当前栏目样式 */
.za5dddnav-item.za5dddthis a,
.za5dddnav-item a:hover {
    color: #1a73e8;
}

.za5dddlogo h1 a {
    text-decoration: none;
    color: #1a73e8;
}

/* 首页文章板块 */
.za5dddarticles {
    padding: 64px 0;
    background-color: #f8f9fa;
}

.za5dddarticles-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.za5dddarticles h2 {
    font-size: 2em;
    color: #1a73e8;
    margin: 0;
}

.za5dddarticles-more {
    color: #1a73e8;
    text-decoration: none;
    font-weight: 500;
    font-size: 1em;
    transition: color 0.3s;
}

.za5dddarticles-more:hover {
    color: #0d47a1;
}

.za5dddarticles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    align-items: stretch;
}

.za5dddarticle-card {
    background: #fff;
    border-radius: 12px;
    border: 1px solid #e0e0e0;
    overflow: hidden;
    height: 100%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.za5dddarticle-card-link {
    height: 100%;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.za5dddarticle-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.za5dddarticle-card-thumb {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: #f0f0f0;
}

.za5dddarticle-card-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.za5dddarticle-card:hover .za5dddarticle-card-thumb img {
    transform: scale(1.05);
}

.za5dddarticle-card-body {
    padding: 14px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.za5dddarticle-card-title {
    font-size: 0.95em;
    color: #333;
    margin: 0 0 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.za5dddarticle-card-date {
    font-size: 0.8em;
    color: #aaa;
}

/* 列表页 & 内容页通用布局 */
.za5dddpage-main {
    padding: 30px 0 60px;
    background: #f8f9fa;
    min-height: calc(100vh - 80px);
}

.za5dddbreadcrumb {
    padding: 15px 0;
    font-size: 0.9em;
    color: #888;
}

.za5dddbreadcrumb a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s;
}

.za5dddbreadcrumb a:hover {
    color: #1a73e8;
}

.za5dddbreadcrumb-sep {
    margin: 0 8px;
    color: #ccc;
}

.za5dddbreadcrumb-current {
    color: #333;
}

.za5dddpage-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;
    align-items: start;
}

/* 列表页主内容 */
.za5dddlist-main {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.za5dddlist-header {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e8f0fe;
}

.za5dddlist-title {
    font-size: 1.8em;
    color: #1a73e8;
    margin: 0 0 10px;
}

.za5dddlist-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5dddlist-item {
    border-bottom: 1px solid #f0f0f0;
    transition: background 0.3s;
}

.za5dddlist-item:last-child {
    border-bottom: none;
}

.za5dddlist-item:hover {
    background: #f8f9fa;
}

.za5dddlist-link {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    text-decoration: none;
    color: inherit;
}

.za5dddlist-thumb {
    flex-shrink: 0;
    width: 200px;
    height: 130px;
    border-radius: 8px;
    overflow: hidden;
    background: #f0f0f0;
}

.za5dddlist-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.za5dddlist-thumb:empty,
.za5dddsidebar-thumb:empty,
.za5dddrelated-thumb:empty {
    display: none;
}

.za5dddlist-content {
    flex: 1;
    min-width: 0;
}

.za5dddlist-item-title {
    font-size: 1.15em;
    color: #333;
    margin: 0 0 10px;
    line-height: 1.4;
    transition: color 0.3s;
}

.za5dddlist-item:hover .za5dddlist-item-title {
    color: #1a73e8;
}

.za5dddlist-intro {
    color: #666;
    font-size: 0.9em;
    line-height: 1.6;
    margin: 0 0 10px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.za5dddlist-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    font-size: 0.85em;
    color: #999;
}

.za5dddlist-meta b {
    color: #1a73e8;
    font-weight: normal;
}

.za5dddlist-meta small {
    color: #bbb;
}

/* 分页 - 左右布局 */
.za5dddpagebar {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #f0f0f0;
}

.za5dddpagebar .pagelist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.za5dddpagebar li {
    display: inline-block;
}

.za5dddpagebar a,
.za5dddpagebar span {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 6px;
    text-decoration: none;
    color: #666;
    font-size: 0.9em;
    border: 1px solid #e0e0e0;
    background: #fff;
    transition: all 0.3s;
}

.za5dddpagebar a:hover {
    color: #1a73e8;
    border-color: #1a73e8;
    background: #e8f0fe;
}

.za5dddpagebar .thisclass,
.za5dddpagebar .thisclass a,
.za5dddpagebar span.thisclass {
    background: #1a73e8;
    color: #fff;
    border-color: #1a73e8;
}

/* 内容页主内容 */
.za5dddarticle-main {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.za5dddarticle-header {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e8f0fe;
}

.za5dddarticle-title {
    font-size: 1.8em;
    color: #333;
    margin: 0 0 15px;
    line-height: 1.4;
}

.za5dddarticle-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.9em;
    color: #888;
}

.za5dddmeta-item a {
    color: #1a73e8;
    text-decoration: none;
}

.za5dddmeta-label {
    color: #aaa;
}

.za5dddarticle-body {
    font-size: 1em;
    line-height: 1.8;
    color: #444;
    margin-bottom: 30px;
}

.za5dddarticle-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 10px 0;
}

.za5dddarticle-body p {
    margin-bottom: 15px;
}

.za5dddarticle-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px 0;
    border-top: 1px solid #f0f0f0;
}

.za5dddarticle-nav-prev,
.za5dddarticle-nav-next {
    flex: 1;
    max-width: 48%;
}

.za5dddarticle-nav-next {
    text-align: right;
}

.za5dddarticle-nav a {
    color: #333;
    text-decoration: none;
    font-size: 0.95em;
    transition: color 0.3s;
}

.za5dddarticle-nav a:hover {
    color: #1a73e8;
}

.za5dddsection-title {
    font-size: 1.3em;
    color: #1a73e8;
    margin: 0 0 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e8f0fe;
}

.za5dddrelated-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5dddrelated-item {
    border-bottom: 1px solid #f0f0f0;
}

.za5dddrelated-item:last-child {
    border-bottom: none;
}

.za5dddrelated-link {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    text-decoration: none;
    color: inherit;
    transition: background 0.3s;
}

.za5dddrelated-link:hover {
    background: #f8f9fa;
}

.za5dddrelated-thumb {
    flex-shrink: 0;
    width: 100px;
    height: 70px;
    border-radius: 6px;
    overflow: hidden;
    background: #f0f0f0;
}

.za5dddrelated-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.za5dddrelated-info h4 {
    font-size: 0.95em;
    color: #333;
    margin: 0 0 5px;
    line-height: 1.4;
}

.za5dddrelated-link:hover .za5dddrelated-info h4 {
    color: #1a73e8;
}

.za5dddrelated-info p {
    font-size: 0.85em;
    color: #888;
    margin: 0;
    line-height: 1.5;
}

/* 侧栏 */
.za5dddsidebar {
    position: sticky;
    top: 100px;
}

.za5dddsidebar-widget {
    background: #fff;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.za5dddsidebar-title {
    font-size: 1.1em;
    margin: 0 0 15px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e8f0fe;
}

.za5dddsidebar-title a {
    color: #1a73e8;
    text-decoration: none;
}

.za5dddsidebar-title a:hover {
    color: #0d47a1;
}

.za5dddsidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.za5dddsidebar-item {
    border-bottom: 1px solid #f5f5f5;
}

.za5dddsidebar-item:last-child {
    border-bottom: none;
}

.za5dddsidebar-link {
    display: flex;
    gap: 10px;
    padding: 10px 0;
    text-decoration: none;
    color: inherit;
    transition: background 0.3s;
}

.za5dddsidebar-link:hover {
    background: #f8f9fa;
}

.za5dddsidebar-thumb {
    flex-shrink: 0;
    width: 70px;
    height: 50px;
    border-radius: 4px;
    overflow: hidden;
    background: #f0f0f0;
}

.za5dddsidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.za5dddsidebar-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.za5dddsidebar-item-title {
    font-size: 0.85em;
    color: #333;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.za5dddsidebar-link:hover .za5dddsidebar-item-title {
    color: #1a73e8;
}

.za5dddsidebar-date {
    font-size: 0.75em;
    color: #aaa;
    margin-top: 4px;
}

@media (max-width: 992px) {
    .za5dddpage-layout {
        grid-template-columns: 1fr;
    }

    .za5dddsidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .za5dddarticles {
        padding: 40px 0;
    }

    .za5dddarticles h2 {
        font-size: 1.8em;
    }

    .za5dddarticle-card-thumb {
        height: 120px;
    }

    .za5dddpage-main {
        padding: 20px 0 40px;
    }

    .za5dddlist-main,
    .za5dddarticle-main {
        padding: 20px;
    }

    .za5dddlist-link {
        flex-direction: column;
        gap: 12px;
    }

    .za5dddlist-thumb {
        width: 100%;
        height: 180px;
    }

    .za5dddlist-title,
    .za5dddarticle-title {
        font-size: 1.4em;
    }

    .za5dddarticle-meta {
        gap: 10px;
    }

    .za5dddarticle-nav {
        flex-direction: column;
    }

    .za5dddarticle-nav-prev,
    .za5dddarticle-nav-next {
        max-width: 100%;
        text-align: left;
    }

    .za5dddrelated-link {
        flex-direction: column;
    }

    .za5dddrelated-thumb {
        width: 100%;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .za5dddarticles-grid {
        grid-template-columns: 1fr;
    }

    .za5dddarticles h2 {
        font-size: 1.6em;
    }

    .za5dddarticle-card-body {
        padding: 12px;
    }

    .za5dddbreadcrumb {
        font-size: 0.8em;
    }

    .za5dddlist-meta {
        flex-direction: column;
        gap: 5px;
    }

    .za5dddsidebar-widget {
        padding: 15px;
    }

    .za5dddsidebar-thumb {
        width: 60px;
        height: 45px;
    }
}

/* ===== 首页板块重设计 ===== */

.za5dddhero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.za5dddhero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

/* 通用板块标题 */
.za5dddsection-head {
    text-align: center;
    margin-bottom: 36px;
}

.za5dddsection-head h2 {
    font-size: clamp(1.5em, 3vw, 1.85em);
    color: #1a73e8;
    margin: 8px 0 0;
}

.za5dddsection-head-light h2 {
    color: #1a73e8;
}

.za5dddsection-head .za5dddsection-desc {
    margin: 12px auto 0;
    color: #666;
    font-size: 0.95em;
    max-width: 640px;
    line-height: 1.7;
}

.za5dddsection-head-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    text-align: left;
    margin-bottom: 40px;
}

.za5dddsection-head-row .za5dddsection-head-row > div,
.za5dddsection-head-row > div:first-child {
    text-align: left;
}

.za5dddsection-tag {
    display: inline-block;
    padding: 4px 14px;
    background: #e8f0fe;
    color: #1a73e8;
    font-size: 0.75em;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    border-radius: 20px;
}

/* 平台优势 - Bento 网格 */
.za5dddfeatures {
    padding: 64px 0;
    background: #fff;
}

.za5dddfeatures-bento {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
    align-items: stretch;
}

.za5dddbento-item {
    background: #f8f9fa;
    border: 1px solid #e8ecf0;
    border-radius: 16px;
    padding: 22px;
    min-height: 148px;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.za5dddbento-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 32px rgba(26,115,232,0.1);
    border-color: #1a73e8;
}

.za5dddbento-item:nth-child(3n+1) {
    background: linear-gradient(135deg, #f0f6ff 0%, #f8f9fa 100%);
}

.za5dddbento-icon {
    font-size: 2.2em;
    flex-shrink: 0;
    line-height: 1;
}

.za5dddbento-item h3 {
    font-size: 1.15em;
    color: #1a73e8;
    margin: 0 0 8px;
}

.za5dddbento-item p {
    color: #666;
    font-size: 0.9em;
    margin: 0;
    line-height: 1.6;
}

.za5dddbento-item:not(.za5dddbento-wide) .za5dddbento-icon {
    margin-bottom: 12px;
}

.za5dddbento-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.za5dddbento-tags span {
    padding: 4px 12px;
    background: #fff;
    border: 1px solid #d0e3fc;
    border-radius: 20px;
    font-size: 0.8em;
    color: #1a73e8;
}

/* 数据统计 - 横条分隔 */
.za5dddstatistics {
    padding: 0;
    background: linear-gradient(135deg, #0d47a1 0%, #1a73e8 100%);
}

.za5dddstat-strip {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 36px 0;
}

.za5dddstat-block {
    flex: 1;
    text-align: center;
    padding: 0 12px;
    min-width: 0;
}

.za5dddstat-num {
    display: block;
    font-size: clamp(1.6em, 3vw, 2.2em);
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 6px;
}

.za5dddstat-label {
    display: block;
    font-size: 0.82em;
    color: rgba(255,255,255,0.85);
    line-height: 1.4;
    word-break: break-word;
}

.za5dddstat-divider {
    width: 1px;
    background: rgba(255,255,255,0.25);
    align-self: stretch;
    flex-shrink: 0;
}

/* 新手指南 - 时间轴 */
.za5dddguide {
    padding: 64px 0;
    background: #0d1b2a;
}

.za5dddguide .za5dddsection-head-light h2 {
    color: #fff;
}

.za5dddguide .za5dddsection-tag {
    background: rgba(26,115,232,0.3);
    color: #90caf9;
}

.za5dddguide-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0 24px;
    position: relative;
    align-items: stretch;
}

.za5dddtimeline-track {
    position: absolute;
    top: 28px;
    left: 10%;
    right: 10%;
    height: 3px;
    background: linear-gradient(90deg, #1a73e8, #64b5f6, #1a73e8);
    border-radius: 2px;
    z-index: 0;
}

.za5dddtimeline-step {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
}

.za5dddtimeline-node {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #1a73e8;
    border: 4px solid #0d1b2a;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    box-shadow: 0 0 0 4px rgba(26,115,232,0.3);
}

.za5dddtimeline-node span {
    color: #fff;
    font-weight: 700;
    font-size: 0.9em;
}

.za5dddtimeline-card {
    background: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 16px;
    padding: 24px 20px;
    width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: background 0.3s, border-color 0.3s;
}

.za5dddtimeline-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(26,115,232,0.5);
}

.za5dddtimeline-icon {
    font-size: 2em;
    margin-bottom: 12px;
}

.za5dddtimeline-card h3 {
    color: #fff;
    font-size: 1.2em;
    margin: 0 0 10px;
}

.za5dddtimeline-card > p {
    color: rgba(255,255,255,0.7);
    font-size: 0.9em;
    margin: 0 0 16px;
    line-height: 1.6;
}

.za5dddtimeline-list {
    list-style: none;
    padding: 0;
    margin: auto 0 0;
    text-align: left;
}

.za5dddtimeline-list li {
    color: rgba(255,255,255,0.85);
    font-size: 0.88em;
    padding: 8px 0 8px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    position: relative;
}

.za5dddtimeline-list li:last-child {
    border-bottom: none;
}

.za5dddtimeline-list li::before {
    content: '›';
    position: absolute;
    left: 0;
    color: #64b5f6;
    font-weight: bold;
}

/* 下载中心 - 横条堆叠 */
.za5ddddownload-section {
    padding: 64px 0;
    background: #f0f4f8;
}

.za5ddddownload-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.za5ddddl-row {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    background: #fff;
    border-radius: 16px;
    padding: 24px 28px;
    border: 1px solid #e0e6ed;
    transition: box-shadow 0.3s, border-color 0.3s;
}

.za5ddddl-row:hover {
    box-shadow: 0 8px 28px rgba(26,115,232,0.1);
    border-color: #1a73e8;
}

.za5ddddl-mobile {
    background: linear-gradient(135deg, #fff 0%, #f0f6ff 100%);
}

.za5ddddl-badge {
    flex-shrink: 0;
    width: 56px;
    height: 56px;
    border-radius: 14px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: #fff;
    font-weight: 700;
    font-size: 0.85em;
    display: flex;
    align-items: center;
    justify-content: center;
    letter-spacing: 1px;
}

.za5ddddl-badge-mobile {
    background: linear-gradient(135deg, #00897b, #00695c);
}

.za5ddddl-info {
    flex: 1;
    min-width: 0;
}

.za5ddddl-info h3 {
    font-size: 1.2em;
    color: #222;
    margin: 0 0 6px;
}

.za5ddddl-sub {
    color: #888;
    font-size: 0.85em;
    margin: 0 0 12px;
}

.za5ddddl-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 16px;
}

.za5ddddl-features li {
    font-size: 0.85em;
    color: #555;
    padding-left: 16px;
    position: relative;
}

.za5ddddl-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

.za5ddddl-actions {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 168px;
    max-width: 100%;
}

.za5ddddl-actions .za5dddbtn {
    margin: 0;
    width: 100%;
    box-sizing: border-box;
    white-space: nowrap;
    font-size: 0.88em;
    padding: 11px 16px;
}

.za5dddbtn-dl {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: #fff;
    border: none;
    text-align: center;
    margin: 0;
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.95em;
}

.za5dddbtn-dl:hover {
    background: linear-gradient(135deg, #0d47a1, #1a73e8);
    color: #fff;
    transform: translateY(-2px);
}

.za5dddbtn-outline {
    background: transparent;
    color: #1a73e8;
    border: 2px solid #1a73e8;
    text-align: center;
    margin: 0;
    padding: 10px 24px;
    border-radius: 8px;
    font-size: 0.95em;
}

.za5dddbtn-outline:hover {
    background: #e8f0fe;
    color: #0d47a1;
}

.za5ddddl-notices {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.za5dddnotice-item {
    background: #fff;
    border-left: 4px solid #1a73e8;
    padding: 14px 20px;
    border-radius: 0 8px 8px 0;
    font-size: 0.9em;
    color: #555;
    line-height: 1.6;
}

.za5dddnotice-item strong {
    color: #333;
    margin-right: 8px;
}

/* 关于我们 - 左右分栏 */
.za5dddabout {
    padding: 64px 0;
    background: #fff;
}

.za5dddabout-split {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: center;
}

.za5dddabout-main h2 {
    font-size: clamp(1.5em, 3vw, 1.85em);
    color: #1a73e8;
    margin: 8px 0 20px;
}

.za5dddabout-main p {
    font-size: 1.05em;
    color: #555;
    line-height: 1.8;
    margin: 0;
}

.za5dddabout-list {
    display: flex;
    flex-direction: column;
    gap: 0;
    border-left: 2px solid #e8f0fe;
}

.za5dddabout-row {
    display: flex;
    gap: 20px;
    padding: 24px 0 24px 28px;
    border-bottom: 1px solid #f0f0f0;
    position: relative;
}

.za5dddabout-row:last-child {
    border-bottom: none;
}

.za5dddabout-row::before {
    content: '';
    position: absolute;
    left: -6px;
    top: 32px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #1a73e8;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px #e8f0fe;
}

.za5dddabout-num {
    font-size: 1.8em;
    font-weight: 700;
    color: #e8f0fe;
    line-height: 1;
    flex-shrink: 0;
    width: 40px;
}

.za5dddabout-row h3 {
    font-size: 1.05em;
    color: #333;
    margin: 0 0 6px;
}

.za5dddabout-row p {
    font-size: 0.9em;
    color: #888;
    margin: 0;
}

/* 联系我们 - 磁贴 + 表单 */
.za5dddcontact {
    padding: 64px 0;
    background: #f8f9fa;
}

.za5dddcontact-tiles {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 32px;
    align-items: stretch;
}

.za5dddcontact-tile {
    background: #fff;
    border-radius: 16px;
    padding: 28px 20px;
    text-align: center;
    border: 1px solid #e8ecf0;
    transition: transform 0.3s, box-shadow 0.3s;
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 140px;
}

.za5dddcontact-tile:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.za5dddcontact-tile-icon {
    font-size: 2.2em;
    display: block;
    margin-bottom: 12px;
}

.za5dddcontact-tile h3 {
    font-size: 1.1em;
    color: #1a73e8;
    margin: 0 0 8px;
}

.za5dddcontact-tile p {
    font-size: 0.9em;
    color: #666;
    margin: 0;
}

.za5dddcontact-form-wrap {
    max-width: 720px;
    margin: 0 auto;
    background: #fff;
    border-radius: 16px;
    padding: 36px 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.za5dddcontact-form-wrap h3 {
    text-align: center;
    font-size: 1.3em;
    color: #333;
    margin: 0 0 24px;
}

.za5dddform-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.za5dddcontact-form-wrap .za5dddbtn-dl {
    width: 100%;
    margin-top: 8px;
}

/* FAQ - 折叠双栏 */
.za5dddfaq {
    padding: 64px 0;
    background: #fff;
}

.za5dddfaq-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
}

.za5dddfaq-col-full {
    grid-column: span 2;
}

.za5dddfaq-group-title {
    font-size: 1.1em;
    color: #1a73e8;
    margin: 0 0 16px;
    padding-bottom: 10px;
    border-bottom: 2px solid #e8f0fe;
}

.za5dddfaq-inline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    align-items: start;
}

.za5dddfaq-detail {
    background: #f8f9fa;
    border: 1px solid #e8ecf0;
    border-radius: 12px;
    margin-bottom: 12px;
    overflow: hidden;
    transition: border-color 0.3s;
}

.za5dddfaq-detail[open] {
    border-color: #1a73e8;
    background: #f0f6ff;
}

.za5dddfaq-detail summary {
    padding: 16px 20px;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    list-style: none;
    font-size: 0.95em;
    line-height: 1.5;
    position: relative;
    padding-right: 36px;
    word-break: break-word;
}

.za5dddfaq-detail summary::-webkit-details-marker {
    display: none;
}

.za5dddfaq-detail summary::after {
    content: '+';
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: #1a73e8;
    font-size: 1.2em;
    font-weight: 400;
}

.za5dddfaq-detail[open] summary::after {
    content: '−';
}

.za5dddfaq-detail p {
    padding: 0 20px 16px;
    margin: 0;
    color: #666;
    font-size: 0.9em;
    line-height: 1.7;
}

/* 文章板块标题对齐 */
.za5dddarticles .za5dddsection-head-row h2 {
    margin: 8px 0 0;
}

/* 首页重设计 - 响应式 */
@media (max-width: 1200px) {
    .za5dddarticles-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .za5ddddl-info h3 {
        font-size: 1.05em;
    }

    .za5ddddl-sub {
        font-size: 0.8em;
    }
}

@media (max-width: 1100px) {
    .za5ddddl-row {
        flex-direction: column;
        align-items: stretch;
    }

    .za5ddddl-actions {
        width: 100%;
        flex-direction: row;
    }
}

@media (max-width: 992px) {
    .za5dddfeatures-bento {
        grid-template-columns: repeat(2, 1fr);
    }

    .za5dddarticles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .za5dddstat-strip {
        flex-wrap: wrap;
        gap: 24px;
        padding: 40px 0;
    }

    .za5dddstat-block {
        flex: 0 0 calc(50% - 12px);
    }

    .za5dddstat-divider {
        display: none;
    }

    .za5dddguide-timeline {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .za5dddtimeline-track {
        display: none;
    }

    .za5dddtimeline-step {
        flex-direction: row;
        align-items: flex-start;
        gap: 20px;
    }

    .za5dddtimeline-node {
        margin-bottom: 0;
        flex-shrink: 0;
    }

    .za5dddtimeline-card {
        text-align: left;
    }

    .za5ddddl-row {
        flex-wrap: wrap;
    }

    .za5ddddl-actions {
        width: 100%;
        flex-direction: row;
        min-width: 0;
    }

    .za5ddddl-actions .za5dddbtn {
        flex: 1;
    }

    .za5dddabout-split {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .za5dddfaq-inline {
        grid-template-columns: 1fr;
    }

    .za5dddfaq-col-full {
        grid-column: span 1;
    }
}

@media (max-width: 768px) {
    .za5dddsection-head h2,
    .za5dddabout-main h2 {
        font-size: 1.7em;
    }

    .za5dddfeatures,
    .za5dddguide,
    .za5ddddownload-section,
    .za5dddabout,
    .za5dddcontact,
    .za5dddfaq,
    .za5dddarticles {
        padding: 48px 0;
    }

    .za5dddfeatures-bento {
        grid-template-columns: 1fr;
    }

    .za5dddarticles-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .za5dddhero {
        padding: 48px 0 56px;
    }

    .za5dddstat-block {
        flex: 0 0 100%;
    }

    .za5dddstat-num {
        font-size: 2em;
    }

    .za5dddtimeline-step {
        flex-direction: column;
        align-items: center;
    }

    .za5dddtimeline-card {
        text-align: center;
    }

    .za5dddtimeline-list {
        text-align: left;
    }

    .za5ddddl-row {
        flex-direction: column;
        align-items: flex-start;
        padding: 24px 20px;
    }

    .za5ddddl-actions {
        flex-direction: column;
        width: 100%;
    }

    .za5dddcontact-tiles {
        grid-template-columns: 1fr;
    }

    .za5dddform-row {
        grid-template-columns: 1fr;
    }

    .za5dddcontact-form-wrap {
        padding: 24px 20px;
    }

    .za5dddfaq-columns {
        grid-template-columns: 1fr;
    }

    .za5dddfaq-col-full {
        grid-column: span 1;
    }

    .za5dddsection-head-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .za5dddarticles-grid {
        grid-template-columns: 1fr;
    }

    .za5dddbento-item {
        padding: 18px;
        min-height: auto;
    }

    .za5ddddl-badge {
        width: 48px;
        height: 48px;
        font-size: 0.75em;
    }

    .za5ddddl-actions {
        flex-direction: column;
    }

    .za5dddnotice-item {
        font-size: 0.85em;
        padding: 12px 16px;
    }

    .za5dddabout-row {
        padding-left: 20px;
    }

    .za5dddmain-nav a {
        font-size: 0.85em;
    }

    .za5dddsection-head {
        margin-bottom: 28px;
    }
}

@media (min-width: 1400px) {
    .za5dddarticles-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}