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

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

/* 容器 */
.z55638container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.z55638header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.z55638header .z55638container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    position: relative;
}

.z55638logo h1 {
    font-size: 24px;
    color: #1a73e8;
}

/* 导航切换按钮 */
.z55638nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.z55638nav-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: #1a73e8;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.z55638main-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z55638main-nav li {
    margin-left: 30px;
}

.z55638main-nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

.z55638main-nav a:hover {
    color: #1a73e8;
}

.z55638main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #1a73e8;
    transition: width 0.3s ease;
}

.z55638main-nav a:hover::after {
    width: 100%;
}

/* 移动端导航样式 */
@media (max-width: 768px) {
    .z55638nav-toggle {
        display: flex;
    }

    .z55638main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 300px;
        height: 100vh;
        background-color: #fff;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        transition: right 0.3s ease;
        z-index: 1000;
    }

    .z55638main-nav.active {
        right: 0;
    }

    .z55638main-nav ul {
        flex-direction: column;
        padding: 80px 20px 20px;
    }

    .z55638main-nav li {
        margin: 0;
        border-bottom: 1px solid #eee;
    }

    .z55638main-nav a {
        display: block;
        padding: 15px 0;
        font-size: 16px;
    }

    .z55638main-nav a::after {
        display: none;
    }

    /* 汉堡菜单动画 */
    .z55638nav-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .z55638nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .z55638nav-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* 遮罩层 */
    .z55638nav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .z55638nav-overlay.active {
        display: block;
    }

    .z55638header .z55638container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 15px;
    }

    .z55638logo h1 {
        font-size: 18px;
        margin-bottom: 0;
    }
}

/* 英雄区域 */
.z55638hero {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 160px 0 80px;
    position: relative;
    overflow: hidden;
}

.z55638hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.z55638hero-text {
    flex: 1;
    max-width: 600px;
}

.z55638hero-text h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.z55638hero-text p {
    font-size: 20px;
    margin-bottom: 16px;
    opacity: 0.9;
}

.z55638hero-image {
    flex: 1;
    max-width: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.z55638hero-image img {
    width: 100%;
    max-width: 480px;
    height: auto;
    max-height: 360px;
    object-fit: contain;
    display: block;
    margin: 0 auto;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    transform: perspective(1000px) rotateY(-5deg);
    transition: transform 0.3s ease;
}

.z55638hero-image img:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.z55638download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* 按钮样式 */
.z55638btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    margin: 0 10px;
}

.z55638btn-primary {
    background-color: #fff;
    color: #1a73e8;
}

.z55638btn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.z55638hero .z55638btn {
    margin: 0;
}

.z55638btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 特点部分 */
.z55638features {
    padding: 64px 0;
    background-color: #fff;
    border: none;
    border-radius: 0;
    margin: 0;
}

.z55638section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
    padding-bottom: 20px;
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z55638section-title:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: #1a73e8;
}

.z55638section-intro {
    text-align: center;
    max-width: 780px;
    margin: -30px auto 40px;
    color: #666;
    font-size: 15px;
    line-height: 1.8;
}

.z55638hero-intro {
    font-size: 16px;
    line-height: 1.8;
    opacity: 0.92;
    margin-bottom: 28px;
}

/* 框架布局 */
.z55638row {
    display: flex;
    flex-wrap: wrap;
    margin: -15px;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background: #fff;
}

.z55638col-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 15px;
    border-right: 1px solid #e0e0e0;
}

.z55638col-md-4:last-child {
    border-right: none;
}

/* 特点盒子 */
.z55638feature-box {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    height: 100%;
    transition: all 0.3s ease;
    overflow: hidden;
    border: 1px solid #e0e0e0;
}

.z55638feature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638feature-header {
    padding: 25px 25px 15px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z55638feature-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638feature-icon {
    font-size: 40px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    padding: 10px;
    border: 2px solid #1a73e8;
    border-radius: 50%;
}

.z55638feature-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.z55638feature-body {
    padding: 20px 25px;
    background: #fff;
}

.z55638feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z55638feature-list li {
    color: #666;
    margin: 0;
    padding: 12px 20px;
    position: relative;
    font-size: 14px;
    line-height: 1.5;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z55638feature-list li:last-child {
    border-bottom: none;
}

.z55638feature-list li:before {
    content: "✓";
    color: #1a73e8;
    position: absolute;
    left: 0;
    font-weight: bold;
    padding: 0 10px;
}

.z55638feature-detail {
    font-size: 12px;
    color: #888;
    margin-top: 5px;
    padding-left: 20px;
    font-style: italic;
}

.z55638feature-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.z55638feature-tag {
    background: #f0f7ff;
    color: #1a73e8;
    padding: 5px 10px;
    border-radius: 15px;
    font-size: 12px;
    border: 1px solid #1a73e8;
}

/* 特点盒子内容样式 */
.z55638feature-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z55638feature-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

/* 安全保障部分 */
.z55638security {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z55638security-framework {
    margin: 0 -15px;
}

.z55638security-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
}

.z55638security-col {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 15px;
}

.z55638security-box {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}

.z55638security-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638security-header {
    padding: 25px 25px 15px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z55638security-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638security-icon {
    font-size: 40px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    padding: 10px;
    border: 2px solid #1a73e8;
    border-radius: 50%;
}

.z55638security-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.z55638security-body {
    padding: 20px 25px;
}

.z55638security-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z55638security-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.z55638security-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z55638security-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z55638security-list li:last-child {
    border-bottom: none;
}

.z55638security-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z55638security-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

.z55638security-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-around;
}

.z55638security-metric {
    text-align: center;
    padding: 10px;
    background: #f0f7ff;
    border-radius: 5px;
    min-width: 100px;
}

.z55638metric-value {
    display: block;
    color: #1a73e8;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 5px;
}

.z55638metric-label {
    display: block;
    color: #666;
    font-size: 12px;
}

/* 安全保障响应式布局 */
@media (max-width: 992px) {
    .z55638security-col {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

@media (max-width: 768px) {
    .z55638security-col {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z55638security-header {
        padding: 20px 20px 10px;
    }

    .z55638security-body {
        padding: 15px 20px;
    }

    .z55638security-icon {
        font-size: 36px;
    }

    .z55638security-header h3 {
        font-size: 18px;
    }

    .z55638security-footer {
        flex-direction: column;
        gap: 10px;
    }

    .z55638security-metric {
        width: 100%;
    }
}

/* 下载中心部分 */
.z55638download-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z55638download-framework {
    margin: 0;
}

.z55638download-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
}

.z55638download-col {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 15px;
}

.z55638download-box {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    height: 100%;
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}

.z55638download-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638download-header {
    padding: 25px 25px 15px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z55638download-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638download-icon {
    font-size: 40px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
    padding: 10px;
    border: 2px solid #1a73e8;
    border-radius: 50%;
}

.z55638download-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.z55638download-body {
    padding: 20px 25px;
}

.z55638download-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z55638download-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.z55638download-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.z55638info-item {
    text-align: center;
    padding: 10px;
    background: #f0f7ff;
    border-radius: 5px;
    border: 1px solid #1a73e8;
}

.z55638info-label {
    display: block;
    color: #666;
    font-size: 12px;
    margin-bottom: 5px;
}

.z55638info-value {
    display: block;
    color: #1a73e8;
    font-size: 16px;
    font-weight: 600;
}

.z55638download-features {
    margin-bottom: 20px;
}

.z55638feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z55638feature-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z55638feature-list li:last-child {
    border-bottom: none;
}

.z55638feature-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z55638feature-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

.z55638download-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.z55638btn-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    background: #1a73e8;
    color: white;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    width: 100%;
    max-width: 200px;
}

.z55638btn-download:hover {
    background: #0d47a1;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.z55638btn-icon {
    font-size: 20px;
}

.z55638download-tags {
    display: flex;
    gap: 10px;
}

.z55638download-tag {
    background: #f0f7ff;
    color: #1a73e8;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 12px;
    border: 1px solid #1a73e8;
}

/* 系统要求部分 */
.z55638system-requirements {
    margin-top: 40px;
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.z55638requirements-title {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 24px;
    position: relative;
    padding-bottom: 15px;
}

.z55638requirements-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638requirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.z55638requirement-box {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.z55638requirement-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638requirement-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
}

.z55638requirement-icon {
    font-size: 24px;
}

.z55638requirement-header h4 {
    color: #333;
    margin: 0;
    font-size: 18px;
}

.z55638requirement-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z55638requirement-list li {
    color: #666;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
}

.z55638requirement-list li:before {
    content: "✓";
    color: #1a73e8;
    position: absolute;
    left: 0;
}

/* 下载中心响应式布局 */
@media (max-width: 992px) {
    .z55638download-col {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .z55638download-info {
        grid-template-columns: 1fr;
    }

    .z55638download-header {
        padding: 20px 20px 10px;
    }

    .z55638download-body {
        padding: 15px 20px;
    }

    .z55638download-icon {
        font-size: 36px;
    }

    .z55638download-header h3 {
        font-size: 18px;
    }

    .z55638requirements-grid {
        grid-template-columns: 1fr;
    }

    .z55638download-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .z55638btn-download {
        max-width: 100%;
        width: 100%;
        margin: 0;
        font-size: 17px;
        padding: 16px 0;
        letter-spacing: 1px;
    }
    .z55638download-tags {
        justify-content: center;
    }
    .z55638download-col {
        flex: 0 0 100%;
        max-width: 100%;
        padding: 8px 0;
    }
    .z55638download-box {
        margin-bottom: 16px;
        padding: 10px 0;
    }
    .z55638download-description p {
        font-size: 15px;
    }
}

/* 使用指南 */
.z55638guide {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z55638guide-framework {
    margin: 0 -15px;
}

.z55638guide-steps {
    display: flex;
    flex-wrap: wrap;
    margin: 0 0 40px 0;
    gap: 20px;
}

.z55638step-box {
    flex: 1;
    min-width: 300px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}

.z55638step-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638step-header {
    padding: 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.z55638step-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638step-number {
    width: 40px;
    height: 40px;
    background: #1a73e8;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
}

.z55638step-icon {
    font-size: 24px;
}

.z55638step-body {
    padding: 20px;
}

.z55638step-body h3 {
    color: #333;
    font-size: 20px;
    margin-bottom: 15px;
    text-align: center;
}

.z55638step-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z55638step-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.z55638step-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z55638step-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z55638step-list li:last-child {
    border-bottom: none;
}

.z55638step-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z55638step-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

.z55638guide-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.z55638guide-category {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}

.z55638guide-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638category-header {
    padding: 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.z55638category-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638category-icon {
    font-size: 24px;
}

.z55638category-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
}

.z55638category-body {
    padding: 20px;
}

.z55638category-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z55638category-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z55638category-list li:last-child {
    border-bottom: none;
}

.z55638category-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z55638category-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

/* 使用指南响应式布局 */
@media (max-width: 992px) {
    .z55638guide-steps {
        flex-direction: column;
    }

    .z55638step-box {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .z55638guide-details {
        grid-template-columns: 1fr;
    }

    .z55638step-header,
    .z55638category-header {
        padding: 15px;
    }

    .z55638step-body,
    .z55638category-body {
        padding: 15px;
    }

    .z55638step-number {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }

    .z55638step-icon,
    .z55638category-icon {
        font-size: 20px;
    }

    .z55638step-body h3,
    .z55638category-header h3 {
        font-size: 18px;
    }
}

/* FAQ部分 */
.z55638faq {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z55638faq-framework {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin: 0 -15px;
}

.z55638faq-category {
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
    border: 1px solid #e0e0e0;
    overflow: hidden;
}

.z55638faq-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638faq-header {
    padding: 20px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.z55638faq-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z55638faq-icon {
    font-size: 24px;
}

.z55638faq-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
}

.z55638faq-body {
    padding: 20px;
}

.z55638faq-item {
    margin-bottom: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.z55638faq-item:last-child {
    margin-bottom: 0;
}

.z55638faq-question {
    padding: 15px 20px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.z55638faq-question:hover {
    background: #f0f7ff;
}

.z55638question-icon {
    font-size: 20px;
    color: #1a73e8;
}

.z55638faq-question h4 {
    color: #333;
    font-size: 16px;
    margin: 0;
    flex: 1;
}

.z55638faq-answer {
    padding: 20px;
    background: white;
    display: flex;
    gap: 15px;
}

.z55638answer-icon {
    font-size: 20px;
    color: #1a73e8;
}

.z55638answer-content {
    flex: 1;
}

.z55638answer-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 15px 0;
}

.z55638answer-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #f8f9fa;
    border-radius: 5px;
    border: 1px solid #e0e0e0;
}

.z55638answer-steps li {
    padding: 10px 15px;
    color: #666;
    font-size: 14px;
    border-bottom: 1px solid #e0e0e0;
    position: relative;
    padding-left: 25px;
}

.z55638answer-steps li:last-child {
    border-bottom: none;
}

.z55638answer-steps li:before {
    content: "→";
    color: #1a73e8;
    position: absolute;
    left: 10px;
}

/* FAQ响应式布局 */
@media (max-width: 992px) {
    .z55638faq-framework {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .z55638faq-header {
        padding: 15px;
    }

    .z55638faq-body {
        padding: 15px;
    }

    .z55638faq-icon {
        font-size: 20px;
    }

    .z55638faq-header h3 {
        font-size: 18px;
    }

    .z55638faq-question {
        padding: 12px 15px;
    }

    .z55638faq-answer {
        padding: 15px;
    }

    .z55638question-icon,
    .z55638answer-icon {
        font-size: 18px;
    }

    .z55638faq-question h4 {
        font-size: 15px;
    }

    .z55638answer-content p {
        font-size: 13px;
    }

    .z55638answer-steps li {
        font-size: 13px;
        padding: 8px 12px;
        padding-left: 25px;
    }
}

/* 页脚 */
.z55638footer {
    background-color: #333;
    color: white;
    padding: 60px 0 20px;
}

.z55638footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.z55638footer-info h3 {
    margin-bottom: 20px;
    color: #fff;
}

.z55638contact-info {
    margin-top: 20px;
    color: #ccc;
}

.z55638footer-links h4,
.z55638footer-news h4 {
    margin-bottom: 20px;
    color: #fff;
}

.z55638footer-links ul,
.z55638footer-news ul {
    list-style: none;
}

.z55638footer-links a {
    color: #ccc;
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
    transition: color 0.3s;
}

.z55638footer-links a:hover {
    color: #fff;
}

.z55638footer-news li {
    color: #ccc;
    margin-bottom: 10px;
}

.z55638footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: #ccc;
}

/* 响应式设计 */
@media (max-width: 992px) {
    .z55638col-md-4 {
        flex: 0 0 50%;
        max-width: 50%;
        border-right: 1px solid #e0e0e0;
        border-bottom: 1px solid #e0e0e0;
    }

    .z55638col-md-4:nth-child(2n) {
        border-right: none;
    }

    .z55638col-md-4:nth-last-child(-n+2) {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .z55638hero {
        padding: 100px 0 48px;
    }

    .z55638hero-text h2 {
        font-size: 36px;
    }

    .z55638hero-text p {
        font-size: 18px;
    }

    .z55638hero-image {
        max-width: 300px;
    }

    .z55638hero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 280px;
        transform: none;
    }

    .z55638btn {
        display: block;
        margin: 8px auto;
        max-width: 240px;
    }

    .z55638section-title {
        font-size: 28px;
    }

    .z55638security-item,
    .z55638download-card,
    .z55638guide-item,
    .z55638faq-item {
        padding: 20px;
    }

    .z55638feature-box {
        padding: 20px;
    }

    .z55638feature-icon {
        font-size: 36px;
    }

    .z55638feature-header {
        padding: 20px 20px 10px;
    }

    .z55638feature-body {
        padding: 15px 20px;
    }

    .z55638feature-header h3 {
        font-size: 18px;
    }

    .z55638feature-list li {
        padding: 10px 15px;
    }

    .z55638feature-detail {
        padding-left: 15px;
    }

    .z55638feature-footer {
        flex-direction: column;
        gap: 5px;
    }

    .z55638feature-tag {
        width: 100%;
        text-align: center;
    }

    .z55638col-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
    }

    .z55638col-md-4:last-child {
        border-bottom: none;
    }
}

@media (max-width: 480px) {
    .z55638hero-text h2 {
        font-size: 28px;
    }

    .z55638hero-text p {
        font-size: 16px;
    }

    .z55638hero-image {
        max-width: 250px;
    }

    .z55638download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .z55638btn {
        width: 100%;
        max-width: 200px;
    }

    .z55638section-title {
        font-size: 24px;
    }

    .z55638feature-item,
    .z55638download-card,
    .z55638step {
        padding: 20px;
    }

    .z55638footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .z55638footer-links ul,
    .z55638footer-news ul {
        text-align: center;
    }
}

/* 响应式设计优化 */
@media (max-width: 1200px) {
    .z55638container {
        max-width: 960px;
        padding: 0 15px;
    }

    .z55638hero-text h2 {
        font-size: 42px;
    }

    .z55638hero-image {
        max-width: 450px;
    }

    .z55638feature-box,
    .z55638security-box,
    .z55638download-box,
    .z55638guide-category,
    .z55638faq-category {
        margin-bottom: 20px;
    }
}

@media (max-width: 992px) {
    .z55638container {
        max-width: 720px;
    }

    /* 导航栏响应式 */
    .z55638header .z55638container {
        padding: 0 15px;
    }

    .z55638main-nav ul {
        gap: 15px;
    }

    /* 英雄区域响应式 */
    .z55638hero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .z55638hero-text {
        max-width: 100%;
    }

    .z55638hero-text h2 {
        font-size: 36px;
    }

    .z55638hero-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .z55638hero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 280px;
        transform: none;
    }

    .z55638download-buttons {
        justify-content: center;
    }

    /* 特点部分响应式 */
    .z55638row {
        margin: 0;
    }

    .z55638col-md-4 {
        flex: 0 0 50%;
        max-width: 50%;
        padding: 10px;
    }

    /* 安全保障响应式 */
    .z55638security-row {
        flex-wrap: wrap;
    }

    .z55638security-col {
        flex: 0 0 50%;
        max-width: 50%;
        padding: 10px;
    }

    /* 下载中心响应式 */
    .z55638download-row {
        flex-direction: column;
    }

    .z55638download-col {
        flex: 0 0 100%;
        max-width: 100%;
        padding: 8px 0;
    }

    /* 使用指南响应式 */
    .z55638guide-steps {
        flex-direction: column;
    }

    .z55638step-box {
        width: 100%;
    }

    /* FAQ响应式 */
    .z55638faq-framework {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .z55638container {
        max-width: 540px;
    }

    /* 英雄区域响应式 */
    .z55638hero {
        padding: 100px 0 48px;
    }

    .z55638hero-text h2 {
        font-size: 32px;
    }

    .z55638hero-text p {
        font-size: 16px;
        margin-bottom: 30px;
    }

    .z55638hero-image {
        max-width: 300px;
    }

    .z55638hero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 260px;
        transform: none;
    }

    /* 特点部分响应式 */
    .z55638col-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z55638feature-box {
        margin-bottom: 15px;
    }

    /* 安全保障响应式 */
    .z55638security-col {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z55638security-box {
        margin-bottom: 15px;
    }

    /* 下载中心响应式 */
    .z55638download-info {
        grid-template-columns: 1fr;
    }

    .z55638download-box {
        margin-bottom: 15px;
    }

    /* 使用指南响应式 */
    .z55638guide-details {
        grid-template-columns: 1fr;
    }

    .z55638guide-category {
        margin-bottom: 15px;
    }

    /* FAQ响应式 */
    .z55638faq-category {
        margin-bottom: 15px;
    }

    .z55638faq-question h4 {
        font-size: 15px;
    }

    .z55638faq-answer {
        padding: 15px;
    }
}

@media (max-width: 576px) {
    .z55638container {
        padding: 0 10px;
    }

    /* 英雄区域响应式 */
    .z55638hero {
        padding: 100px 0 40px;
    }

    .z55638hero-text h2 {
        font-size: 28px;
    }

    .z55638hero-text p {
        font-size: 14px;
    }

    .z55638hero-image {
        max-width: 250px;
    }

    .z55638hero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 220px;
        transform: none;
    }

    .z55638download-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .z55638btn {
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }

    /* 特点部分响应式 */
    .z55638section-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .z55638feature-header,
    .z55638security-header,
    .z55638download-header,
    .z55638guide-header,
    .z55638faq-header {
        padding: 15px;
    }

    .z55638feature-body,
    .z55638security-body,
    .z55638download-body,
    .z55638guide-body,
    .z55638faq-body {
        padding: 15px;
    }

    /* 列表项响应式 */
    .z55638feature-list li,
    .z55638security-list li,
    .z55638download-list li,
    .z55638guide-list li,
    .z55638faq-list li {
        padding: 10px 15px;
    }

    .z55638feature-title,
    .z55638security-title,
    .z55638download-title,
    .z55638guide-title,
    .z55638faq-title {
        font-size: 14px;
    }

    .z55638feature-detail,
    .z55638security-detail,
    .z55638download-detail,
    .z55638guide-detail,
    .z55638faq-detail {
        font-size: 12px;
    }

    /* 页脚响应式 */
    .z55638footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .z55638footer-links ul,
    .z55638footer-news ul {
        text-align: center;
    }
}

/* 导航当前栏目样式 */
.z55638main-nav li.z55638this a,
.z55638main-nav li.z55638this a:hover {
    color: #1a73e8;
}

.z55638main-nav li.z55638this a::after {
    width: 100%;
}

.z55638logo h1 a {
    color: #1a73e8;
    text-decoration: none;
}

/* 内页布局 */
.z55638page-main {
    padding-top: 100px;
    padding-bottom: 60px;
    background-color: #f8f9fa;
    min-height: calc(100vh - 200px);
}

.z55638breadcrumb {
    padding: 15px 0;
    font-size: 14px;
    color: #666;
}

.z55638breadcrumb a {
    color: #1a73e8;
    text-decoration: none;
}

.z55638breadcrumb a:hover {
    text-decoration: underline;
}

.z55638breadcrumb-sep {
    margin: 0 8px;
    color: #ccc;
}

.z55638breadcrumb-current {
    color: #333;
}

.z55638page-layout {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.z55638article-main,
.z55638list-main {
    flex: 1;
    min-width: 0;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    overflow: hidden;
}

/* 内容页 */
.z55638article-header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid #e0e0e0;
}

.z55638article-page-title {
    font-size: 28px;
    color: #333;
    line-height: 1.4;
    margin-bottom: 15px;
}

.z55638article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 25px;
    font-size: 14px;
    color: #666;
}

.z55638article-meta a {
    color: #1a73e8;
    text-decoration: none;
}

.z55638meta-item small {
    color: #999;
}

.z55638article-thumb-main {
    padding: 0 30px;
    margin-top: 20px;
    text-align: center;
}

.z55638article-thumb-main:empty {
    display: none;
    padding: 0;
    margin: 0;
}

.z55638article-thumb-main img {
    max-width: 680px;
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.z55638article-thumb-main img[src=""],
.z55638article-thumb-main img:not([src]) {
    display: none;
}

.z55638article-thumb-main:not(:has(img[src]:not([src=""]))) {
    display: none;
    padding: 0;
    margin: 0;
}

.z55638diyfield:empty,
.z55638article-images:empty {
    display: none;
}

.z55638clear {
    display: none;
}

.z55638article-content {
    padding: 25px 30px;
    font-size: 16px;
    line-height: 1.8;
    color: #444;
}

.z55638article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 10px 0;
}

.z55638article-content p {
    margin-bottom: 15px;
}

.z55638diyfield {
    padding: 0 30px 20px;
}

.z55638article-images {
    padding: 0 30px 20px;
}

.z55638article-figure {
    margin-bottom: 20px;
    text-align: center;
}

.z55638article-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.z55638article-figure figcaption {
    margin-top: 8px;
    font-size: 14px;
    color: #666;
}

.z55638meta-tags {
    list-style: none;
    padding: 15px 30px;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    border-top: 1px solid #e0e0e0;
}

.z55638meta-tags:empty {
    display: none;
    padding: 0;
    border: none;
}

.z55638tagitem a {
    display: inline-block;
    padding: 5px 12px;
    background: #f0f7ff;
    color: #1a73e8;
    border-radius: 15px;
    font-size: 13px;
    text-decoration: none;
    border: 1px solid #1a73e8;
    transition: all 0.3s;
}

.z55638tagitem a:hover {
    background: #1a73e8;
    color: #fff;
}

.z55638article-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 30px;
    border-top: 1px solid #e0e0e0;
    background: #f8f9fa;
}

.z55638article-nav:empty {
    display: none;
}

.z55638article-nav > *:first-child {
    flex: 1;
    min-width: 0;
}

.z55638article-nav > *:last-child {
    flex: 1;
    min-width: 0;
    text-align: right;
}

.z55638article-nav a {
    color: #1a73e8;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    word-break: break-all;
}

.z55638article-nav a:hover {
    text-decoration: underline;
}

.z55638related {
    padding: 25px 30px 30px;
    border-top: 1px solid #e0e0e0;
}

.z55638related-title {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1a73e8;
}

.z55638related-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z55638related-item {
    border-bottom: 1px solid #eee;
}

.z55638related-item:last-child {
    border-bottom: none;
}

.z55638related-link {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    text-decoration: none;
    transition: background 0.3s;
}

.z55638related-link:hover {
    background: #f8f9fa;
}

.z55638related-thumb {
    flex-shrink: 0;
    width: 100px;
    height: 70px;
    overflow: hidden;
    border-radius: 6px;
}

.z55638related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.z55638article-thumb img,
.z55638list-thumb img,
.z55638sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.z55638related-info h4 {
    font-size: 15px;
    color: #333;
    margin-bottom: 5px;
    line-height: 1.4;
}

.z55638related-info p {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
    margin: 0;
}

/* 列表页 */
.z55638list-header {
    padding: 25px 30px;
    border-bottom: 2px solid #1a73e8;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.z55638list-title {
    font-size: 26px;
    color: #333;
    margin-bottom: 10px;
}

.z55638list-subnav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.z55638list-subnav:empty {
    display: none;
    margin: 0;
}

.z55638subnav-item {
    display: inline-block;
    padding: 5px 15px;
    background: #f0f7ff;
    color: #1a73e8;
    border-radius: 15px;
    font-size: 13px;
    text-decoration: none;
    border: 1px solid #1a73e8;
    transition: all 0.3s;
}

.z55638subnav-item:hover {
    background: #1a73e8;
    color: #fff;
}

.z55638listbox {
    padding: 0;
}

.z55638list-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z55638list-item {
    border-bottom: 1px solid #e0e0e0;
    transition: background 0.3s;
}

.z55638list-item:last-child {
    border-bottom: none;
}

.z55638list-item:hover {
    background: #f8f9fa;
}

.z55638list-link {
    display: flex;
    gap: 20px;
    padding: 20px 30px;
    text-decoration: none;
}

.z55638list-thumb {
    flex-shrink: 0;
    width: 240px;
    height: 160px;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.z55638list-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.z55638list-item:hover .z55638list-thumb img {
    transform: scale(1.05);
}

.z55638list-info {
    flex: 1;
    min-width: 0;
}

.z55638list-item-title {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
    transition: color 0.3s;
}

.z55638list-item:hover .z55638list-item-title {
    color: #1a73e8;
}

.z55638list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    font-size: 13px;
    color: #888;
    margin-bottom: 10px;
}

.z55638list-meta-item small {
    color: #aaa;
}

.z55638list-intro {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 分页 - 左右显示 */
.z55638pagebar {
    padding: 25px 30px;
    border-top: 1px solid #e0e0e0;
    background: #f8f9fa;
}

.z55638pages {
    width: 100%;
}

.z55638pagelist,
.pagelist.z55638pagelist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.z55638pagelist li,
.pagelist.z55638pagelist li {
    display: inline-block;
    list-style: none;
}

.z55638pagelist a,
.z55638pagelist span,
.pagelist.z55638pagelist a,
.pagelist.z55638pagelist span {
    display: inline-block;
    padding: 8px 16px;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    color: #333;
    text-decoration: none;
    font-size: 14px;
    background: #fff;
    transition: all 0.3s;
}

.z55638pagelist a:hover,
.pagelist.z55638pagelist a:hover {
    background: #1a73e8;
    color: #fff;
    border-color: #1a73e8;
}

.z55638pagelist .thisclass span,
.z55638pagelist .thisclass a,
.pagelist.z55638pagelist .thisclass span,
.pagelist.z55638pagelist .thisclass a {
    background: #1a73e8;
    color: #fff;
    border-color: #1a73e8;
}

.z55638pagelist .pageinfo,
.pagelist.z55638pagelist .pageinfo {
    flex: 1;
    text-align: center;
    border: none;
    background: transparent;
    color: #666;
}

/* 侧栏 */
.z55638sidebar {
    width: 300px;
    flex-shrink: 0;
}

.z55638sidebar-block {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    margin-bottom: 20px;
    overflow: hidden;
}

.z55638sidebar-title {
    padding: 15px 20px;
    font-size: 16px;
    margin: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
}

.z55638sidebar-title a {
    color: #333;
    text-decoration: none;
}

.z55638sidebar-title a:hover {
    color: #1a73e8;
}

.z55638sidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z55638sidebar-item {
    border-bottom: 1px solid #eee;
}

.z55638sidebar-item:last-child {
    border-bottom: none;
}

.z55638sidebar-link {
    display: flex;
    gap: 10px;
    padding: 10px 15px;
    text-decoration: none;
    transition: background 0.3s;
}

.z55638sidebar-link:hover {
    background: #f0f7ff;
}

.z55638sidebar-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    overflow: hidden;
    border-radius: 4px;
}

.z55638sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z55638sidebar-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.z55638sidebar-item-title {
    display: block;
    font-size: 13px;
    color: #333;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.z55638sidebar-item-date {
    display: block;
    font-size: 11px;
    color: #999;
    margin-top: 4px;
}

/* 首页文章板块 */
.z55638articles {
    padding: 80px 0;
    background-color: #fff;
}

.z55638article-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.z55638article-card {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    border: 1px solid #e0e0e0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.z55638article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z55638article-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.z55638article-thumb {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: #f0f0f0;
}

.z55638article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.z55638article-card:hover .z55638article-thumb img {
    transform: scale(1.05);
}

.z55638article-info {
    padding: 15px;
}

.z55638article-title {
    font-size: 15px;
    color: #333;
    margin-bottom: 8px;
    line-height: 1.4;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.z55638article-card:hover .z55638article-title {
    color: #1a73e8;
}

.z55638article-desc {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
    margin-bottom: 8px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.z55638article-date {
    font-size: 12px;
    color: #aaa;
}

/* 内页与文章板块响应式 */
@media (max-width: 1200px) {
    .z55638article-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .z55638page-layout {
        flex-direction: column;
    }

    .z55638sidebar {
        width: 100%;
    }

    .z55638article-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z55638list-thumb {
        width: 180px;
        height: 120px;
    }
}

@media (max-width: 768px) {
    .z55638header {
        position: fixed;
        width: 100%;
        top: 0;
    }

    .z55638header .z55638container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 15px;
    }

    .z55638page-main {
        padding-top: 80px;
    }

    .z55638article-header,
    .z55638article-content,
    .z55638related,
    .z55638list-header {
        padding-left: 20px;
        padding-right: 20px;
    }

    .z55638article-page-title {
        font-size: 22px;
    }

    .z55638article-nav {
        flex-direction: column;
        padding: 15px 20px;
    }

    .z55638article-nav > *:last-child {
        text-align: left;
    }

    .z55638list-link {
        flex-direction: column;
        padding: 15px 20px;
    }

    .z55638list-thumb {
        width: 100%;
        height: 180px;
    }

    .z55638list-item-title {
        font-size: 16px;
    }

    .z55638pagelist {
        justify-content: center;
    }

    .z55638pagelist .pageinfo {
        width: 100%;
        order: -1;
        margin-bottom: 10px;
    }

    .z55638article-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .z55638related-link {
        flex-direction: column;
    }

    .z55638related-thumb {
        width: 100%;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .z55638article-grid {
        grid-template-columns: 1fr;
    }

    .z55638article-thumb {
        height: 180px;
    }

    .z55638breadcrumb {
        font-size: 12px;
    }

    .z55638article-meta {
        flex-direction: column;
        gap: 8px;
    }
}

/* ===== 首页板块差异化布局 ===== */

/* 统一板块间距与标题 */
.z55638features,
.z55638security,
.z55638download-section,
.z55638guide,
.z55638faq,
.z55638articles {
    padding: 64px 0;
}

.z55638section-title {
    margin-bottom: 36px;
    font-size: 32px;
    padding-bottom: 16px;
}

.z55638section-intro {
    margin: -12px auto 32px;
}

/* 产品特点：Bento 网格 + 左侧色条卡片 */
.z55638features {
    background: #fff;
    border: none;
    border-radius: 0;
    margin: 0;
}

.z55638features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
}

.z55638features-grid .z55638row {
    display: contents;
    border: none;
    padding: 0;
    margin: 0;
    background: transparent;
}

.z55638features-grid .z55638col-md-4 {
    flex: none;
    max-width: none;
    padding: 0;
    border: none;
    display: flex;
}

.z55638features .z55638feature-box {
    flex: 1;
    display: flex;
    flex-direction: column;
    border: 1px solid #e8eef5;
    border-left-width: 4px;
    border-left-color: #1a73e8;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(26, 115, 232, 0.06);
}

.z55638features .z55638feature-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z55638features .z55638feature-footer {
    margin-top: auto;
}

.z55638features-grid .z55638col-md-4:nth-child(3n+2) .z55638feature-box {
    border-left-color: #34a853;
}

.z55638features-grid .z55638col-md-4:nth-child(3n) .z55638feature-box {
    border-left-color: #7b1fa2;
}

.z55638features .z55638feature-header {
    display: flex;
    align-items: center;
    gap: 14px;
    text-align: left;
    padding: 20px 20px 10px;
    background: transparent;
    border-bottom: none;
}

.z55638features .z55638feature-header:after {
    display: none;
}

.z55638features .z55638feature-header h3 {
    border-bottom: none;
    padding: 0;
    font-size: 18px;
}

.z55638features .z55638feature-icon {
    margin: 0;
    font-size: 26px;
    padding: 8px;
    flex-shrink: 0;
}

.z55638features .z55638feature-list {
    border: none;
    background: transparent;
}

.z55638features .z55638feature-list li {
    padding: 8px 12px 8px 28px;
    border-bottom: 1px dashed #e8eef5;
    font-size: 13px;
}

.z55638features .z55638feature-detail {
    font-size: 11px;
    margin-top: 2px;
}

.z55638features .z55638feature-body {
    padding: 12px 16px 16px;
}

.z55638features .z55638feature-footer {
    padding-top: 10px;
    gap: 6px;
}

.z55638features .z55638feature-tag {
    font-size: 11px;
    padding: 3px 8px;
}

.z55638features .z55638feature-description {
    background: #f8fafc;
    border-left: none;
    border-radius: 8px;
    padding: 12px 14px;
}

.z55638features .z55638feature-description p {
    font-size: 13px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* 安全保障：深色背景 + 玻璃卡片 */
.z55638security {
    background: linear-gradient(160deg, #0a1628 0%, #1a3a5c 50%, #0d2137 100%);
}

.z55638security-framework {
    margin: 0;
}

.z55638security-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
}

.z55638security-col {
    flex: none;
    max-width: none;
    padding: 0;
    display: flex;
}

.z55638security-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z55638security-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z55638security-footer {
    margin-top: auto;
}

.z55638security .z55638section-title {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

.z55638security .z55638section-title:after {
    background: #64b5f6;
}

.z55638security .z55638section-intro {
    color: rgba(255, 255, 255, 0.7);
}

.z55638security-box {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 16px;
    backdrop-filter: blur(10px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.z55638security-box:hover {
    background: rgba(255, 255, 255, 0.11);
    border-color: rgba(100, 181, 246, 0.4);
    transform: translateY(-4px);
}

.z55638security-header {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    padding: 22px 22px 12px;
    background: transparent;
    border-bottom: none;
}

.z55638security-header:after {
    display: none;
}

.z55638security-header h3 {
    color: #fff;
    border-bottom: none;
    padding: 0;
}

.z55638security-icon {
    font-size: 32px;
    margin: 0;
    border-color: rgba(100, 181, 246, 0.5);
}

.z55638security-description {
    background: rgba(255, 255, 255, 0.06);
    border-left: 3px solid #64b5f6;
}

.z55638security-description p {
    color: rgba(255, 255, 255, 0.85);
}

.z55638security-list {
    border: none;
    background: transparent;
}

.z55638security-list li {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.z55638security-title {
    color: #fff;
}

.z55638security-detail {
    color: rgba(255, 255, 255, 0.55);
}

.z55638security-footer {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.z55638security-metric {
    background: rgba(100, 181, 246, 0.15);
    border: 1px solid rgba(100, 181, 246, 0.25);
}

.z55638metric-value {
    color: #64b5f6;
}

.z55638metric-label {
    color: rgba(255, 255, 255, 0.6);
}

/* 下载中心：非对称双栏 + 渐变移动端卡片 */
.z55638download-section {
    background: #f0f4f8;
}

.z55638download-section .z55638download-framework {
    margin: 0;
}

.z55638download-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.z55638download-col {
    flex: none;
    max-width: none;
    padding: 0;
    display: flex;
}

.z55638download-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z55638download-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z55638download-footer {
    margin-top: auto;
}

.z55638download-col:first-child .z55638download-box {
    background: #fff;
    border: 2px dashed #c5d9f0;
    box-shadow: none;
}

.z55638download-col:first-child .z55638download-box:hover {
    border-color: #1a73e8;
    border-style: solid;
}

.z55638download-col:last-child .z55638download-box {
    background: linear-gradient(145deg, #1a73e8 0%, #0d47a1 100%);
    border: none;
    color: #fff;
}

.z55638download-col:last-child .z55638download-header {
    background: transparent;
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.z55638download-col:last-child .z55638download-header h3,
.z55638download-col:last-child .z55638download-description p {
    color: #fff;
}

.z55638download-col:last-child .z55638download-description {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: rgba(255, 255, 255, 0.5);
}

.z55638download-col:last-child .z55638info-item {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
}

.z55638download-col:last-child .z55638info-label {
    color: rgba(255, 255, 255, 0.7);
}

.z55638download-col:last-child .z55638info-value {
    color: #fff;
}

.z55638download-col:last-child .z55638feature-list {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.z55638download-col:last-child .z55638feature-list li {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.z55638download-col:last-child .z55638feature-title {
    color: #fff;
}

.z55638download-col:last-child .z55638feature-detail {
    color: rgba(255, 255, 255, 0.65);
}

.z55638download-col:last-child .z55638btn-download {
    background: #fff;
    color: #1a73e8;
}

.z55638download-col:last-child .z55638btn-download:hover {
    background: #f0f7ff;
}

.z55638download-col:last-child .z55638download-tag {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.z55638download-section .z55638download-header {
    padding: 20px 20px 12px;
}

.z55638download-section .z55638download-body {
    padding: 16px 20px 20px;
}

.z55638download-section .z55638btn-download {
    max-width: none;
    padding: 10px 20px;
}

.z55638system-requirements {
    margin-top: 36px;
    padding: 28px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid #e0e8f0;
}

.z55638requirements-grid {
    grid-template-columns: repeat(4, 1fr);
}

.z55638requirement-box {
    text-align: center;
    background: #f8fafc;
    border-radius: 12px;
    padding: 18px 14px;
}

.z55638requirement-header {
    flex-direction: column;
    justify-content: center;
    border-bottom: none;
    padding-bottom: 0;
}

.z55638requirement-icon {
    font-size: 32px;
}

/* 使用指南：时间轴步骤 + 简约分类列表 */
.z55638guide {
    background: #fff;
}

.z55638guide-framework {
    margin: 0;
}

.z55638guide-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    position: relative;
    margin-bottom: 40px;
    padding-top: 20px;
    align-items: stretch;
}

.z55638guide-timeline::before {
    content: '';
    position: absolute;
    top: 36px;
    left: 12%;
    right: 12%;
    height: 2px;
    background: linear-gradient(90deg, #1a73e8, #34a853, #7b1fa2);
    opacity: 0.25;
    z-index: 0;
}

.z55638guide-timeline .z55638step-box {
    background: #f8fafc;
    border: 1px solid #e8eef5;
    border-radius: 16px;
    box-shadow: none;
    position: relative;
    z-index: 1;
    text-align: center;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.z55638guide-timeline .z55638step-body {
    flex: 1;
}

.z55638guide-timeline .z55638step-box:hover {
    border-color: #1a73e8;
    box-shadow: 0 8px 24px rgba(26, 115, 232, 0.1);
}

.z55638guide-timeline .z55638step-header {
    flex-direction: column;
    gap: 8px;
    border-bottom: none;
    padding-bottom: 0;
}

.z55638guide-timeline .z55638step-header:after {
    display: none;
}

.z55638guide-timeline .z55638step-number {
    width: 48px;
    height: 48px;
    font-size: 22px;
    margin: 0 auto;
}

.z55638guide-details {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: start;
}

.z55638guide-category {
    background: transparent;
    border: none;
    box-shadow: none;
    border-top: 3px solid #1a73e8;
    border-radius: 0;
}

.z55638guide-category:nth-child(2) {
    border-top-color: #34a853;
}

.z55638guide-category:nth-child(3) {
    border-top-color: #7b1fa2;
}

.z55638guide-category:hover {
    transform: none;
    box-shadow: none;
}

.z55638guide-category .z55638category-header {
    background: transparent;
    border-bottom: none;
    justify-content: flex-start;
    padding: 16px 0 12px;
}

.z55638guide-category .z55638category-header:after {
    display: none;
}

.z55638guide-category .z55638category-body {
    padding: 0 0 16px;
}

.z55638guide-category .z55638category-list {
    border: none;
    background: transparent;
}

.z55638guide-category .z55638category-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

/* 常见问题：居中窄栏 + 分类标签式 */
.z55638faq {
    background: #f8fafc;
}

.z55638faq-framework {
    display: flex;
    flex-direction: column;
    gap: 32px;
    max-width: 880px;
    margin: 0 auto;
}

.z55638faq-category {
    background: #fff;
    border: none;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
    overflow: visible;
}

.z55638faq-category:hover {
    transform: none;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.z55638faq-header {
    justify-content: flex-start;
    background: linear-gradient(90deg, #f0f7ff 0%, #fff 100%);
    border-bottom: none;
    border-radius: 16px 16px 0 0;
    padding: 16px 24px;
}

.z55638faq-header:after {
    display: none;
}

.z55638faq-body {
    padding: 0 24px 20px;
}

.z55638faq-item {
    border: none;
    border-radius: 0;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 0;
}

.z55638faq-item:last-child {
    border-bottom: none;
}

.z55638faq-question {
    background: transparent;
    padding: 16px 0;
    cursor: default;
}

.z55638faq-question:hover {
    background: transparent;
}

.z55638faq-answer {
    padding: 0 0 16px 36px;
    background: transparent;
}

/* 最新资讯：图片底部渐变叠加 */
.z55638articles {
    background: #fff;
}

.z55638article-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    align-items: stretch;
}

.z55638article-card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.z55638article-link {
    position: relative;
    display: block;
    height: 100%;
    min-height: 168px;
}

.z55638article-thumb {
    height: 168px;
    min-height: 168px;
}

.z55638article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z55638article-info {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 36px 14px 14px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.78) 0%, transparent 100%);
}

.z55638article-title {
    color: #fff;
    font-size: 14px;
    margin-bottom: 4px;
    -webkit-line-clamp: 2;
}

.z55638article-card:hover .z55638article-title {
    color: #fff;
}

.z55638article-date {
    color: rgba(255, 255, 255, 0.75);
}

/* 首页板块响应式 */
@media (max-width: 992px) {
    .z55638features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z55638security-row {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }

    .z55638security-header {
        padding: 16px 14px 10px;
    }

    .z55638security-body {
        padding: 14px 16px;
    }

    .z55638security-header h3 {
        font-size: 16px;
    }

    .z55638download-row {
        grid-template-columns: 1fr;
    }

    .z55638guide-timeline {
        grid-template-columns: 1fr;
        padding-top: 0;
    }

    .z55638guide-timeline::before {
        display: none;
    }

    .z55638guide-details {
        grid-template-columns: 1fr;
    }

    .z55638requirements-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z55638article-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z55638hero {
        padding: 120px 0 56px;
    }
}

@media (max-width: 768px) {
    .z55638features,
    .z55638security,
    .z55638download-section,
    .z55638guide,
    .z55638faq,
    .z55638articles {
        padding: 48px 0;
    }

    .z55638header .z55638container {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 15px;
    }

    .z55638logo h1 {
        margin-bottom: 0;
        font-size: 18px;
    }

    .z55638hero {
        padding: 100px 0 48px;
    }

    .z55638hero-content {
        flex-direction: column;
        text-align: center;
        gap: 28px;
    }

    .z55638hero-image {
        max-width: 100%;
        width: 100%;
    }

    .z55638features-grid {
        grid-template-columns: 1fr;
    }

    .z55638security-row {
        grid-template-columns: 1fr;
    }

    .z55638requirements-grid {
        grid-template-columns: 1fr 1fr;
    }

    .z55638article-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z55638article-thumb,
    .z55638article-link {
        min-height: 150px;
    }

    .z55638article-thumb {
        height: 150px;
    }

    .z55638download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .z55638btn {
        margin: 6px 0;
        width: 100%;
        max-width: 280px;
    }

    .z55638faq-answer {
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .z55638container {
        padding: 0 16px;
    }

    .z55638section-title {
        font-size: 24px;
        margin-bottom: 28px;
    }

    .z55638section-intro {
        margin: -8px auto 24px;
        font-size: 14px;
    }

    .z55638article-grid {
        grid-template-columns: 1fr;
    }

    .z55638requirements-grid {
        grid-template-columns: 1fr;
    }

    .z55638hero-text h2 {
        font-size: 26px;
    }
}

/* 首页布局最终修正（覆盖旧规则冲突） */
main {
    overflow-x: hidden;
}

.z55638main-nav ul {
    flex-wrap: wrap;
    gap: 4px 20px;
}

.z55638security-framework {
    margin: 0 !important;
}

.z55638guide-framework {
    margin: 0 !important;
}

.z55638faq-framework {
    margin: 0 auto !important;
}

.z55638row {
    margin: 0;
    padding: 0;
    border: none;
    background: transparent;
}

.z55638features-grid .z55638col-md-4 {
    border: none !important;
}

@media (max-width: 768px) {
    .z55638header {
        position: fixed !important;
        width: 100%;
        top: 0;
    }

    .z55638header .z55638container {
        flex-direction: row !important;
        justify-content: space-between;
        align-items: center;
        height: 60px !important;
        padding: 0 15px !important;
    }

    .z55638security-row {
        grid-template-columns: 1fr !important;
    }

    .z55638download-section .z55638download-body {
        padding: 14px 16px 16px;
    }

    .z55638guide-timeline .z55638step-body {
        padding: 14px;
    }

    .z55638guide-timeline .z55638step-list li {
        padding: 8px 12px;
    }
}

@media (min-width: 769px) and (max-width: 1100px) {
    .z55638main-nav li {
        margin-left: 16px;
    }

    .z55638main-nav a {
        font-size: 14px;
    }
}

/* 打印样式优化 */
@media print {
    .z55638header,
    .z55638hero,
    .z55638download-buttons,
    .z55638footer {
        display: none;
    }

    .z55638container {
        max-width: 100%;
        padding: 0;
    }

    body {
        font-size: 12pt;
        line-height: 1.5;
    }

    .z55638section-title {
        font-size: 18pt;
        margin-bottom: 20pt;
    }

    .z55638feature-box,
    .z55638security-box,
    .z55638download-box,
    .z55638guide-category,
    .z55638faq-category {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}