/* 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 */
.z03dfdcontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.z03dfdheader {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.z03dfdheader .z03dfdcontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    position: relative;
}

.z03dfdlogo h1 {
    font-size: 24px;
    color: #1a73e8;
}

/* 导航切换按钮 */
.z03dfdnav-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
}

.z03dfdnav-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: #1a73e8;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.z03dfdmain-nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z03dfdmain-nav li {
    margin-left: 30px;
}

.z03dfdmain-nav a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    padding: 5px 0;
    position: relative;
}

.z03dfdmain-nav a:hover {
    color: #1a73e8;
}

.z03dfdmain-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: #1a73e8;
    transition: width 0.3s ease;
}

.z03dfdmain-nav a:hover::after {
    width: 100%;
}

/* 移动端导航样式 */
@media (max-width: 768px) {
    .z03dfdnav-toggle {
        display: flex;
    }

    .z03dfdmain-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;
    }

    .z03dfdmain-nav.active {
        right: 0;
    }

    .z03dfdmain-nav ul {
        flex-direction: column;
        padding: 80px 20px 20px;
    }

    .z03dfdmain-nav li {
        margin: 0;
        border-bottom: 1px solid #eee;
    }

    .z03dfdmain-nav a {
        display: block;
        padding: 15px 0;
        font-size: 16px;
    }

    .z03dfdmain-nav a::after {
        display: none;
    }

    /* 汉堡菜单动画 */
    .z03dfdnav-toggle.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

    .z03dfdnav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .z03dfdnav-toggle.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    /* 遮罩层 */
    .z03dfdnav-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0,0,0,0.5);
        z-index: 999;
    }

    .z03dfdnav-overlay.active {
        display: block;
    }

    .z03dfdheader .z03dfdcontainer {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 15px;
    }

    .z03dfdlogo h1 {
        font-size: 18px;
        margin-bottom: 0;
    }
}

/* 英雄区域 */
.z03dfdhero {
    background: linear-gradient(135deg, #1a73e8 0%, #0d47a1 100%);
    color: white;
    padding: 160px 0 80px;
    position: relative;
    overflow: hidden;
}

.z03dfdhero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.z03dfdhero-text {
    flex: 1;
    max-width: 600px;
}

.z03dfdhero-text h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.z03dfdhero-text p {
    font-size: 20px;
    margin-bottom: 16px;
    opacity: 0.9;
}

.z03dfdhero-image {
    flex: 1;
    max-width: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.z03dfdhero-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;
}

.z03dfdhero-image img:hover {
    transform: perspective(1000px) rotateY(0deg);
}

.z03dfddownload-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

/* 按钮样式 */
.z03dfdbtn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
    margin: 0 10px;
}

.z03dfdbtn-primary {
    background-color: #fff;
    color: #1a73e8;
}

.z03dfdbtn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.z03dfdhero .z03dfdbtn {
    margin: 0;
}

.z03dfdbtn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 特点部分 */
.z03dfdfeatures {
    padding: 64px 0;
    background-color: #fff;
    border: none;
    border-radius: 0;
    margin: 0;
}

.z03dfdsection-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
    padding-bottom: 20px;
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z03dfdsection-title:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdsection-intro {
    text-align: center;
    max-width: 780px;
    margin: -30px auto 40px;
    color: #666;
    font-size: 15px;
    line-height: 1.8;
}

.z03dfdhero-intro {
    font-size: 16px;
    line-height: 1.8;
    opacity: 0.92;
    margin-bottom: 28px;
}

/* 框架布局 */
.z03dfdrow {
    display: flex;
    flex-wrap: wrap;
    margin: -15px;
    padding: 15px;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    background: #fff;
}

.z03dfdcol-md-4 {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 15px;
    border-right: 1px solid #e0e0e0;
}

.z03dfdcol-md-4:last-child {
    border-right: none;
}

/* 特点盒子 */
.z03dfdfeature-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;
}

.z03dfdfeature-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdfeature-header {
    padding: 25px 25px 15px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z03dfdfeature-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdfeature-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%;
}

.z03dfdfeature-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.z03dfdfeature-body {
    padding: 20px 25px;
    background: #fff;
}

.z03dfdfeature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z03dfdfeature-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;
}

.z03dfdfeature-list li:last-child {
    border-bottom: none;
}

.z03dfdfeature-list li:before {
    content: "✓";
    color: #1a73e8;
    position: absolute;
    left: 0;
    font-weight: bold;
    padding: 0 10px;
}

.z03dfdfeature-detail {
    font-size: 12px;
    color: #888;
    margin-top: 5px;
    padding-left: 20px;
    font-style: italic;
}

.z03dfdfeature-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.z03dfdfeature-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 */
.z03dfdfeature-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z03dfdfeature-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

/* 安全保障部分 */
.z03dfdsecurity {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z03dfdsecurity-framework {
    margin: 0 -15px;
}

.z03dfdsecurity-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
}

.z03dfdsecurity-col {
    flex: 0 0 33.333333%;
    max-width: 33.333333%;
    padding: 15px;
}

.z03dfdsecurity-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;
}

.z03dfdsecurity-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdsecurity-header {
    padding: 25px 25px 15px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z03dfdsecurity-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdsecurity-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%;
}

.z03dfdsecurity-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.z03dfdsecurity-body {
    padding: 20px 25px;
}

.z03dfdsecurity-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z03dfdsecurity-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.z03dfdsecurity-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z03dfdsecurity-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z03dfdsecurity-list li:last-child {
    border-bottom: none;
}

.z03dfdsecurity-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z03dfdsecurity-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

.z03dfdsecurity-footer {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-around;
}

.z03dfdsecurity-metric {
    text-align: center;
    padding: 10px;
    background: #f0f7ff;
    border-radius: 5px;
    min-width: 100px;
}

.z03dfdmetric-value {
    display: block;
    color: #1a73e8;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 5px;
}

.z03dfdmetric-label {
    display: block;
    color: #666;
    font-size: 12px;
}

/* 安全保障响应式布局 */
@media (max-width: 992px) {
    .z03dfdsecurity-col {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

@media (max-width: 768px) {
    .z03dfdsecurity-col {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z03dfdsecurity-header {
        padding: 20px 20px 10px;
    }

    .z03dfdsecurity-body {
        padding: 15px 20px;
    }

    .z03dfdsecurity-icon {
        font-size: 36px;
    }

    .z03dfdsecurity-header h3 {
        font-size: 18px;
    }

    .z03dfdsecurity-footer {
        flex-direction: column;
        gap: 10px;
    }

    .z03dfdsecurity-metric {
        width: 100%;
    }
}

/* 下载中心部分 */
.z03dfddownload-section {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z03dfddownload-framework {
    margin: 0;
}

.z03dfddownload-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0;
}

.z03dfddownload-col {
    flex: 0 0 50%;
    max-width: 50%;
    padding: 15px;
}

.z03dfddownload-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;
}

.z03dfddownload-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfddownload-header {
    padding: 25px 25px 15px;
    text-align: center;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
    position: relative;
}

.z03dfddownload-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfddownload-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%;
}

.z03dfddownload-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
    font-weight: 600;
    padding: 10px 0;
    border-bottom: 1px solid #e0e0e0;
}

.z03dfddownload-body {
    padding: 20px 25px;
}

.z03dfddownload-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z03dfddownload-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.z03dfddownload-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-bottom: 20px;
}

.z03dfdinfo-item {
    text-align: center;
    padding: 10px;
    background: #f0f7ff;
    border-radius: 5px;
    border: 1px solid #1a73e8;
}

.z03dfdinfo-label {
    display: block;
    color: #666;
    font-size: 12px;
    margin-bottom: 5px;
}

.z03dfdinfo-value {
    display: block;
    color: #1a73e8;
    font-size: 16px;
    font-weight: 600;
}

.z03dfddownload-features {
    margin-bottom: 20px;
}

.z03dfdfeature-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z03dfdfeature-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z03dfdfeature-list li:last-child {
    border-bottom: none;
}

.z03dfdfeature-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z03dfdfeature-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

.z03dfddownload-footer {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

.z03dfdbtn-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;
}

.z03dfdbtn-download:hover {
    background: #0d47a1;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.z03dfdbtn-icon {
    font-size: 20px;
}

.z03dfddownload-tags {
    display: flex;
    gap: 10px;
}

.z03dfddownload-tag {
    background: #f0f7ff;
    color: #1a73e8;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 12px;
    border: 1px solid #1a73e8;
}

/* 系统要求部分 */
.z03dfdsystem-requirements {
    margin-top: 40px;
    padding: 30px;
    background: white;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.z03dfdrequirements-title {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
    font-size: 24px;
    position: relative;
    padding-bottom: 15px;
}

.z03dfdrequirements-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdrequirements-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.z03dfdrequirement-box {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 20px;
    border: 1px solid #e0e0e0;
    transition: all 0.3s ease;
}

.z03dfdrequirement-box:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdrequirement-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
}

.z03dfdrequirement-icon {
    font-size: 24px;
}

.z03dfdrequirement-header h4 {
    color: #333;
    margin: 0;
    font-size: 18px;
}

.z03dfdrequirement-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z03dfdrequirement-list li {
    color: #666;
    margin-bottom: 8px;
    padding-left: 20px;
    position: relative;
    font-size: 14px;
}

.z03dfdrequirement-list li:before {
    content: "✓";
    color: #1a73e8;
    position: absolute;
    left: 0;
}

/* 下载中心响应式布局 */
@media (max-width: 992px) {
    .z03dfddownload-col {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .z03dfddownload-info {
        grid-template-columns: 1fr;
    }

    .z03dfddownload-header {
        padding: 20px 20px 10px;
    }

    .z03dfddownload-body {
        padding: 15px 20px;
    }

    .z03dfddownload-icon {
        font-size: 36px;
    }

    .z03dfddownload-header h3 {
        font-size: 18px;
    }

    .z03dfdrequirements-grid {
        grid-template-columns: 1fr;
    }

    .z03dfddownload-footer {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }
    .z03dfdbtn-download {
        max-width: 100%;
        width: 100%;
        margin: 0;
        font-size: 17px;
        padding: 16px 0;
        letter-spacing: 1px;
    }
    .z03dfddownload-tags {
        justify-content: center;
    }
    .z03dfddownload-col {
        flex: 0 0 100%;
        max-width: 100%;
        padding: 8px 0;
    }
    .z03dfddownload-box {
        margin-bottom: 16px;
        padding: 10px 0;
    }
    .z03dfddownload-description p {
        font-size: 15px;
    }
}

/* 使用指南 */
.z03dfdguide {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z03dfdguide-framework {
    margin: 0 -15px;
}

.z03dfdguide-steps {
    display: flex;
    flex-wrap: wrap;
    margin: 0 0 40px 0;
    gap: 20px;
}

.z03dfdstep-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;
}

.z03dfdstep-box:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdstep-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;
}

.z03dfdstep-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdstep-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;
}

.z03dfdstep-icon {
    font-size: 24px;
}

.z03dfdstep-body {
    padding: 20px;
}

.z03dfdstep-body h3 {
    color: #333;
    font-size: 20px;
    margin-bottom: 15px;
    text-align: center;
}

.z03dfdstep-description {
    margin-bottom: 20px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 5px;
    border-left: 3px solid #1a73e8;
}

.z03dfdstep-description p {
    color: #333;
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
}

.z03dfdstep-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z03dfdstep-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z03dfdstep-list li:last-child {
    border-bottom: none;
}

.z03dfdstep-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z03dfdstep-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

.z03dfdguide-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.z03dfdguide-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;
}

.z03dfdguide-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdcategory-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;
}

.z03dfdcategory-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdcategory-icon {
    font-size: 24px;
}

.z03dfdcategory-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
}

.z03dfdcategory-body {
    padding: 20px;
}

.z03dfdcategory-list {
    list-style: none;
    padding: 0;
    margin: 0;
    border: 1px solid #e0e0e0;
    border-radius: 5px;
    background: #f8f9fa;
}

.z03dfdcategory-list li {
    padding: 12px 20px;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
}

.z03dfdcategory-list li:last-child {
    border-bottom: none;
}

.z03dfdcategory-title {
    color: #333;
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 5px;
}

.z03dfdcategory-detail {
    color: #666;
    font-size: 12px;
    line-height: 1.4;
}

/* 使用指南响应式布局 */
@media (max-width: 992px) {
    .z03dfdguide-steps {
        flex-direction: column;
    }

    .z03dfdstep-box {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .z03dfdguide-details {
        grid-template-columns: 1fr;
    }

    .z03dfdstep-header,
    .z03dfdcategory-header {
        padding: 15px;
    }

    .z03dfdstep-body,
    .z03dfdcategory-body {
        padding: 15px;
    }

    .z03dfdstep-number {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }

    .z03dfdstep-icon,
    .z03dfdcategory-icon {
        font-size: 20px;
    }

    .z03dfdstep-body h3,
    .z03dfdcategory-header h3 {
        font-size: 18px;
    }
}

/* FAQ部分 */
.z03dfdfaq {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.z03dfdfaq-framework {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin: 0 -15px;
}

.z03dfdfaq-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;
}

.z03dfdfaq-category:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdfaq-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;
}

.z03dfdfaq-header:after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 2px;
    background: #1a73e8;
}

.z03dfdfaq-icon {
    font-size: 24px;
}

.z03dfdfaq-header h3 {
    color: #333;
    font-size: 20px;
    margin: 0;
}

.z03dfdfaq-body {
    padding: 20px;
}

.z03dfdfaq-item {
    margin-bottom: 20px;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
}

.z03dfdfaq-item:last-child {
    margin-bottom: 0;
}

.z03dfdfaq-question {
    padding: 15px 20px;
    background: #f8f9fa;
    display: flex;
    align-items: center;
    gap: 15px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.z03dfdfaq-question:hover {
    background: #f0f7ff;
}

.z03dfdquestion-icon {
    font-size: 20px;
    color: #1a73e8;
}

.z03dfdfaq-question h4 {
    color: #333;
    font-size: 16px;
    margin: 0;
    flex: 1;
}

.z03dfdfaq-answer {
    padding: 20px;
    background: white;
    display: flex;
    gap: 15px;
}

.z03dfdanswer-icon {
    font-size: 20px;
    color: #1a73e8;
}

.z03dfdanswer-content {
    flex: 1;
}

.z03dfdanswer-content p {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin: 0 0 15px 0;
}

.z03dfdanswer-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    background: #f8f9fa;
    border-radius: 5px;
    border: 1px solid #e0e0e0;
}

.z03dfdanswer-steps li {
    padding: 10px 15px;
    color: #666;
    font-size: 14px;
    border-bottom: 1px solid #e0e0e0;
    position: relative;
    padding-left: 25px;
}

.z03dfdanswer-steps li:last-child {
    border-bottom: none;
}

.z03dfdanswer-steps li:before {
    content: "→";
    color: #1a73e8;
    position: absolute;
    left: 10px;
}

/* FAQ响应式布局 */
@media (max-width: 992px) {
    .z03dfdfaq-framework {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .z03dfdfaq-header {
        padding: 15px;
    }

    .z03dfdfaq-body {
        padding: 15px;
    }

    .z03dfdfaq-icon {
        font-size: 20px;
    }

    .z03dfdfaq-header h3 {
        font-size: 18px;
    }

    .z03dfdfaq-question {
        padding: 12px 15px;
    }

    .z03dfdfaq-answer {
        padding: 15px;
    }

    .z03dfdquestion-icon,
    .z03dfdanswer-icon {
        font-size: 18px;
    }

    .z03dfdfaq-question h4 {
        font-size: 15px;
    }

    .z03dfdanswer-content p {
        font-size: 13px;
    }

    .z03dfdanswer-steps li {
        font-size: 13px;
        padding: 8px 12px;
        padding-left: 25px;
    }
}

/* 页脚 */
.z03dfdfooter {
    background-color: #333;
    color: white;
    padding: 60px 0 20px;
}

.z03dfdfooter-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.z03dfdfooter-info h3 {
    margin-bottom: 20px;
    color: #fff;
}

.z03dfdcontact-info {
    margin-top: 20px;
    color: #ccc;
}

.z03dfdfooter-links h4,
.z03dfdfooter-news h4 {
    margin-bottom: 20px;
    color: #fff;
}

.z03dfdfooter-links ul,
.z03dfdfooter-news ul {
    list-style: none;
}

.z03dfdfooter-links a {
    color: #ccc;
    text-decoration: none;
    margin-bottom: 10px;
    display: block;
    transition: color 0.3s;
}

.z03dfdfooter-links a:hover {
    color: #fff;
}

.z03dfdfooter-news li {
    color: #ccc;
    margin-bottom: 10px;
}

.z03dfdfooter-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) {
    .z03dfdcol-md-4 {
        flex: 0 0 50%;
        max-width: 50%;
        border-right: 1px solid #e0e0e0;
        border-bottom: 1px solid #e0e0e0;
    }

    .z03dfdcol-md-4:nth-child(2n) {
        border-right: none;
    }

    .z03dfdcol-md-4:nth-last-child(-n+2) {
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .z03dfdhero {
        padding: 100px 0 48px;
    }

    .z03dfdhero-text h2 {
        font-size: 36px;
    }

    .z03dfdhero-text p {
        font-size: 18px;
    }

    .z03dfdhero-image {
        max-width: 300px;
    }

    .z03dfdhero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 280px;
        transform: none;
    }

    .z03dfdbtn {
        display: block;
        margin: 8px auto;
        max-width: 240px;
    }

    .z03dfdsection-title {
        font-size: 28px;
    }

    .z03dfdsecurity-item,
    .z03dfddownload-card,
    .z03dfdguide-item,
    .z03dfdfaq-item {
        padding: 20px;
    }

    .z03dfdfeature-box {
        padding: 20px;
    }

    .z03dfdfeature-icon {
        font-size: 36px;
    }

    .z03dfdfeature-header {
        padding: 20px 20px 10px;
    }

    .z03dfdfeature-body {
        padding: 15px 20px;
    }

    .z03dfdfeature-header h3 {
        font-size: 18px;
    }

    .z03dfdfeature-list li {
        padding: 10px 15px;
    }

    .z03dfdfeature-detail {
        padding-left: 15px;
    }

    .z03dfdfeature-footer {
        flex-direction: column;
        gap: 5px;
    }

    .z03dfdfeature-tag {
        width: 100%;
        text-align: center;
    }

    .z03dfdcol-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
    }

    .z03dfdcol-md-4:last-child {
        border-bottom: none;
    }
}

@media (max-width: 480px) {
    .z03dfdhero-text h2 {
        font-size: 28px;
    }

    .z03dfdhero-text p {
        font-size: 16px;
    }

    .z03dfdhero-image {
        max-width: 250px;
    }

    .z03dfddownload-buttons {
        flex-direction: column;
        align-items: center;
    }

    .z03dfdbtn {
        width: 100%;
        max-width: 200px;
    }

    .z03dfdsection-title {
        font-size: 24px;
    }

    .z03dfdfeature-item,
    .z03dfddownload-card,
    .z03dfdstep {
        padding: 20px;
    }

    .z03dfdfooter-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .z03dfdfooter-links ul,
    .z03dfdfooter-news ul {
        text-align: center;
    }
}

/* 响应式设计优化 */
@media (max-width: 1200px) {
    .z03dfdcontainer {
        max-width: 960px;
        padding: 0 15px;
    }

    .z03dfdhero-text h2 {
        font-size: 42px;
    }

    .z03dfdhero-image {
        max-width: 450px;
    }

    .z03dfdfeature-box,
    .z03dfdsecurity-box,
    .z03dfddownload-box,
    .z03dfdguide-category,
    .z03dfdfaq-category {
        margin-bottom: 20px;
    }
}

@media (max-width: 992px) {
    .z03dfdcontainer {
        max-width: 720px;
    }

    /* 导航栏响应式 */
    .z03dfdheader .z03dfdcontainer {
        padding: 0 15px;
    }

    .z03dfdmain-nav ul {
        gap: 15px;
    }

    /* 英雄区域响应式 */
    .z03dfdhero-content {
        flex-direction: column;
        text-align: center;
        gap: 30px;
    }

    .z03dfdhero-text {
        max-width: 100%;
    }

    .z03dfdhero-text h2 {
        font-size: 36px;
    }

    .z03dfdhero-image {
        max-width: 400px;
        margin: 0 auto;
    }

    .z03dfdhero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 280px;
        transform: none;
    }

    .z03dfddownload-buttons {
        justify-content: center;
    }

    /* 特点部分响应式 */
    .z03dfdrow {
        margin: 0;
    }

    .z03dfdcol-md-4 {
        flex: 0 0 50%;
        max-width: 50%;
        padding: 10px;
    }

    /* 安全保障响应式 */
    .z03dfdsecurity-row {
        flex-wrap: wrap;
    }

    .z03dfdsecurity-col {
        flex: 0 0 50%;
        max-width: 50%;
        padding: 10px;
    }

    /* 下载中心响应式 */
    .z03dfddownload-row {
        flex-direction: column;
    }

    .z03dfddownload-col {
        flex: 0 0 100%;
        max-width: 100%;
        padding: 8px 0;
    }

    /* 使用指南响应式 */
    .z03dfdguide-steps {
        flex-direction: column;
    }

    .z03dfdstep-box {
        width: 100%;
    }

    /* FAQ响应式 */
    .z03dfdfaq-framework {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .z03dfdcontainer {
        max-width: 540px;
    }

    /* 英雄区域响应式 */
    .z03dfdhero {
        padding: 100px 0 48px;
    }

    .z03dfdhero-text h2 {
        font-size: 32px;
    }

    .z03dfdhero-text p {
        font-size: 16px;
        margin-bottom: 30px;
    }

    .z03dfdhero-image {
        max-width: 300px;
    }

    .z03dfdhero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 260px;
        transform: none;
    }

    /* 特点部分响应式 */
    .z03dfdcol-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z03dfdfeature-box {
        margin-bottom: 15px;
    }

    /* 安全保障响应式 */
    .z03dfdsecurity-col {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .z03dfdsecurity-box {
        margin-bottom: 15px;
    }

    /* 下载中心响应式 */
    .z03dfddownload-info {
        grid-template-columns: 1fr;
    }

    .z03dfddownload-box {
        margin-bottom: 15px;
    }

    /* 使用指南响应式 */
    .z03dfdguide-details {
        grid-template-columns: 1fr;
    }

    .z03dfdguide-category {
        margin-bottom: 15px;
    }

    /* FAQ响应式 */
    .z03dfdfaq-category {
        margin-bottom: 15px;
    }

    .z03dfdfaq-question h4 {
        font-size: 15px;
    }

    .z03dfdfaq-answer {
        padding: 15px;
    }
}

@media (max-width: 576px) {
    .z03dfdcontainer {
        padding: 0 10px;
    }

    /* 英雄区域响应式 */
    .z03dfdhero {
        padding: 100px 0 40px;
    }

    .z03dfdhero-text h2 {
        font-size: 28px;
    }

    .z03dfdhero-text p {
        font-size: 14px;
    }

    .z03dfdhero-image {
        max-width: 250px;
    }

    .z03dfdhero-image img {
        width: 100%;
        max-width: 100%;
        height: auto;
        max-height: 220px;
        transform: none;
    }

    .z03dfddownload-buttons {
        flex-direction: column;
        gap: 10px;
    }

    .z03dfdbtn {
        width: 100%;
        max-width: 200px;
        margin: 0 auto;
    }

    /* 特点部分响应式 */
    .z03dfdsection-title {
        font-size: 24px;
        margin-bottom: 30px;
    }

    .z03dfdfeature-header,
    .z03dfdsecurity-header,
    .z03dfddownload-header,
    .z03dfdguide-header,
    .z03dfdfaq-header {
        padding: 15px;
    }

    .z03dfdfeature-body,
    .z03dfdsecurity-body,
    .z03dfddownload-body,
    .z03dfdguide-body,
    .z03dfdfaq-body {
        padding: 15px;
    }

    /* 列表项响应式 */
    .z03dfdfeature-list li,
    .z03dfdsecurity-list li,
    .z03dfddownload-list li,
    .z03dfdguide-list li,
    .z03dfdfaq-list li {
        padding: 10px 15px;
    }

    .z03dfdfeature-title,
    .z03dfdsecurity-title,
    .z03dfddownload-title,
    .z03dfdguide-title,
    .z03dfdfaq-title {
        font-size: 14px;
    }

    .z03dfdfeature-detail,
    .z03dfdsecurity-detail,
    .z03dfddownload-detail,
    .z03dfdguide-detail,
    .z03dfdfaq-detail {
        font-size: 12px;
    }

    /* 页脚响应式 */
    .z03dfdfooter-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .z03dfdfooter-links ul,
    .z03dfdfooter-news ul {
        text-align: center;
    }
}

/* 导航当前栏目样式 */
.z03dfdmain-nav li.z03dfdthis a,
.z03dfdmain-nav li.z03dfdthis a:hover {
    color: #1a73e8;
}

.z03dfdmain-nav li.z03dfdthis a::after {
    width: 100%;
}

.z03dfdlogo h1 a {
    color: #1a73e8;
    text-decoration: none;
}

/* 内页布局 */
.z03dfdpage-main {
    padding-top: 100px;
    padding-bottom: 60px;
    background-color: #f8f9fa;
    min-height: calc(100vh - 200px);
}

.z03dfdbreadcrumb {
    padding: 15px 0;
    font-size: 14px;
    color: #666;
}

.z03dfdbreadcrumb a {
    color: #1a73e8;
    text-decoration: none;
}

.z03dfdbreadcrumb a:hover {
    text-decoration: underline;
}

.z03dfdbreadcrumb-sep {
    margin: 0 8px;
    color: #ccc;
}

.z03dfdbreadcrumb-current {
    color: #333;
}

.z03dfdpage-layout {
    display: flex;
    gap: 30px;
    align-items: flex-start;
}

.z03dfdarticle-main,
.z03dfdlist-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 */
.z03dfdarticle-header {
    padding: 30px 30px 20px;
    border-bottom: 1px solid #e0e0e0;
}

.z03dfdarticle-page-title {
    font-size: 28px;
    color: #333;
    line-height: 1.4;
    margin-bottom: 15px;
}

.z03dfdarticle-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px 25px;
    font-size: 14px;
    color: #666;
}

.z03dfdarticle-meta a {
    color: #1a73e8;
    text-decoration: none;
}

.z03dfdmeta-item small {
    color: #999;
}

.z03dfdarticle-thumb-main {
    padding: 0 30px;
    margin-top: 20px;
    text-align: center;
}

.z03dfdarticle-thumb-main:empty {
    display: none;
    padding: 0;
    margin: 0;
}

.z03dfdarticle-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);
}

.z03dfdarticle-thumb-main img[src=""],
.z03dfdarticle-thumb-main img:not([src]) {
    display: none;
}

.z03dfdarticle-thumb-main:not(:has(img[src]:not([src=""]))) {
    display: none;
    padding: 0;
    margin: 0;
}

.z03dfddiyfield:empty,
.z03dfdarticle-images:empty {
    display: none;
}

.z03dfdclear {
    display: none;
}

.z03dfdarticle-content {
    padding: 25px 30px;
    font-size: 16px;
    line-height: 1.8;
    color: #444;
}

.z03dfdarticle-content img {
    max-width: 100%;
    height: auto;
    border-radius: 6px;
    margin: 10px 0;
}

.z03dfdarticle-content p {
    margin-bottom: 15px;
}

.z03dfddiyfield {
    padding: 0 30px 20px;
}

.z03dfdarticle-images {
    padding: 0 30px 20px;
}

.z03dfdarticle-figure {
    margin-bottom: 20px;
    text-align: center;
}

.z03dfdarticle-figure img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.z03dfdarticle-figure figcaption {
    margin-top: 8px;
    font-size: 14px;
    color: #666;
}

.z03dfdmeta-tags {
    list-style: none;
    padding: 15px 30px;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    border-top: 1px solid #e0e0e0;
}

.z03dfdmeta-tags:empty {
    display: none;
    padding: 0;
    border: none;
}

.z03dfdtagitem 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;
}

.z03dfdtagitem a:hover {
    background: #1a73e8;
    color: #fff;
}

.z03dfdarticle-nav {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    padding: 20px 30px;
    border-top: 1px solid #e0e0e0;
    background: #f8f9fa;
}

.z03dfdarticle-nav:empty {
    display: none;
}

.z03dfdarticle-nav > *:first-child {
    flex: 1;
    min-width: 0;
}

.z03dfdarticle-nav > *:last-child {
    flex: 1;
    min-width: 0;
    text-align: right;
}

.z03dfdarticle-nav a {
    color: #1a73e8;
    text-decoration: none;
    font-size: 14px;
    line-height: 1.5;
    word-break: break-all;
}

.z03dfdarticle-nav a:hover {
    text-decoration: underline;
}

.z03dfdrelated {
    padding: 25px 30px 30px;
    border-top: 1px solid #e0e0e0;
}

.z03dfdrelated-title {
    font-size: 20px;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid #1a73e8;
}

.z03dfdrelated-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z03dfdrelated-item {
    border-bottom: 1px solid #eee;
}

.z03dfdrelated-item:last-child {
    border-bottom: none;
}

.z03dfdrelated-link {
    display: flex;
    gap: 15px;
    padding: 15px 0;
    text-decoration: none;
    transition: background 0.3s;
}

.z03dfdrelated-link:hover {
    background: #f8f9fa;
}

.z03dfdrelated-thumb {
    flex-shrink: 0;
    width: 100px;
    height: 70px;
    overflow: hidden;
    border-radius: 6px;
}

.z03dfdrelated-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.z03dfdarticle-thumb img,
.z03dfdlist-thumb img,
.z03dfdsidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.z03dfdrelated-info h4 {
    font-size: 15px;
    color: #333;
    margin-bottom: 5px;
    line-height: 1.4;
}

.z03dfdrelated-info p {
    font-size: 13px;
    color: #888;
    line-height: 1.5;
    margin: 0;
}

/* 列表页 */
.z03dfdlist-header {
    padding: 25px 30px;
    border-bottom: 2px solid #1a73e8;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
}

.z03dfdlist-title {
    font-size: 26px;
    color: #333;
    margin-bottom: 10px;
}

.z03dfdlist-subnav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 10px;
}

.z03dfdlist-subnav:empty {
    display: none;
    margin: 0;
}

.z03dfdsubnav-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;
}

.z03dfdsubnav-item:hover {
    background: #1a73e8;
    color: #fff;
}

.z03dfdlistbox {
    padding: 0;
}

.z03dfdlist-items {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z03dfdlist-item {
    border-bottom: 1px solid #e0e0e0;
    transition: background 0.3s;
}

.z03dfdlist-item:last-child {
    border-bottom: none;
}

.z03dfdlist-item:hover {
    background: #f8f9fa;
}

.z03dfdlist-link {
    display: flex;
    gap: 20px;
    padding: 20px 30px;
    text-decoration: none;
}

.z03dfdlist-thumb {
    flex-shrink: 0;
    width: 240px;
    height: 160px;
    overflow: hidden;
    border-radius: 8px;
    border: 1px solid #e0e0e0;
}

.z03dfdlist-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.z03dfdlist-item:hover .z03dfdlist-thumb img {
    transform: scale(1.05);
}

.z03dfdlist-info {
    flex: 1;
    min-width: 0;
}

.z03dfdlist-item-title {
    font-size: 18px;
    color: #333;
    margin-bottom: 10px;
    line-height: 1.4;
    transition: color 0.3s;
}

.z03dfdlist-item:hover .z03dfdlist-item-title {
    color: #1a73e8;
}

.z03dfdlist-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    font-size: 13px;
    color: #888;
    margin-bottom: 10px;
}

.z03dfdlist-meta-item small {
    color: #aaa;
}

.z03dfdlist-intro {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 分页 - 左右显示 */
.z03dfdpagebar {
    padding: 25px 30px;
    border-top: 1px solid #e0e0e0;
    background: #f8f9fa;
}

.z03dfdpages {
    width: 100%;
}

.z03dfdpagelist,
.pagelist.z03dfdpagelist {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
}

.z03dfdpagelist li,
.pagelist.z03dfdpagelist li {
    display: inline-block;
    list-style: none;
}

.z03dfdpagelist a,
.z03dfdpagelist span,
.pagelist.z03dfdpagelist a,
.pagelist.z03dfdpagelist 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;
}

.z03dfdpagelist a:hover,
.pagelist.z03dfdpagelist a:hover {
    background: #1a73e8;
    color: #fff;
    border-color: #1a73e8;
}

.z03dfdpagelist .thisclass span,
.z03dfdpagelist .thisclass a,
.pagelist.z03dfdpagelist .thisclass span,
.pagelist.z03dfdpagelist .thisclass a {
    background: #1a73e8;
    color: #fff;
    border-color: #1a73e8;
}

.z03dfdpagelist .pageinfo,
.pagelist.z03dfdpagelist .pageinfo {
    flex: 1;
    text-align: center;
    border: none;
    background: transparent;
    color: #666;
}

/* 侧栏 */
.z03dfdsidebar {
    width: 300px;
    flex-shrink: 0;
}

.z03dfdsidebar-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;
}

.z03dfdsidebar-title {
    padding: 15px 20px;
    font-size: 16px;
    margin: 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #ffffff 100%);
    border-bottom: 2px solid #1a73e8;
}

.z03dfdsidebar-title a {
    color: #333;
    text-decoration: none;
}

.z03dfdsidebar-title a:hover {
    color: #1a73e8;
}

.z03dfdsidebar-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z03dfdsidebar-item {
    border-bottom: 1px solid #eee;
}

.z03dfdsidebar-item:last-child {
    border-bottom: none;
}

.z03dfdsidebar-link {
    display: flex;
    gap: 10px;
    padding: 10px 15px;
    text-decoration: none;
    transition: background 0.3s;
}

.z03dfdsidebar-link:hover {
    background: #f0f7ff;
}

.z03dfdsidebar-thumb {
    flex-shrink: 0;
    width: 80px;
    height: 60px;
    overflow: hidden;
    border-radius: 4px;
}

.z03dfdsidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z03dfdsidebar-text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.z03dfdsidebar-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;
}

.z03dfdsidebar-item-date {
    display: block;
    font-size: 11px;
    color: #999;
    margin-top: 4px;
}

/* 首页文章板块 */
.z03dfdarticles {
    padding: 80px 0;
    background-color: #fff;
}

.z03dfdarticle-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.z03dfdarticle-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;
}

.z03dfdarticle-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-color: #1a73e8;
}

.z03dfdarticle-link {
    display: block;
    text-decoration: none;
    color: inherit;
}

.z03dfdarticle-thumb {
    width: 100%;
    height: 140px;
    overflow: hidden;
    background: #f0f0f0;
}

.z03dfdarticle-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.z03dfdarticle-card:hover .z03dfdarticle-thumb img {
    transform: scale(1.05);
}

.z03dfdarticle-info {
    padding: 15px;
}

.z03dfdarticle-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;
}

.z03dfdarticle-card:hover .z03dfdarticle-title {
    color: #1a73e8;
}

.z03dfdarticle-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;
}

.z03dfdarticle-date {
    font-size: 12px;
    color: #aaa;
}

/* 内页与文章板块响应式 */
@media (max-width: 1200px) {
    .z03dfdarticle-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .z03dfdpage-layout {
        flex-direction: column;
    }

    .z03dfdsidebar {
        width: 100%;
    }

    .z03dfdarticle-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z03dfdlist-thumb {
        width: 180px;
        height: 120px;
    }
}

@media (max-width: 768px) {
    .z03dfdheader {
        position: fixed;
        width: 100%;
        top: 0;
    }

    .z03dfdheader .z03dfdcontainer {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 15px;
    }

    .z03dfdpage-main {
        padding-top: 80px;
    }

    .z03dfdarticle-header,
    .z03dfdarticle-content,
    .z03dfdrelated,
    .z03dfdlist-header {
        padding-left: 20px;
        padding-right: 20px;
    }

    .z03dfdarticle-page-title {
        font-size: 22px;
    }

    .z03dfdarticle-nav {
        flex-direction: column;
        padding: 15px 20px;
    }

    .z03dfdarticle-nav > *:last-child {
        text-align: left;
    }

    .z03dfdlist-link {
        flex-direction: column;
        padding: 15px 20px;
    }

    .z03dfdlist-thumb {
        width: 100%;
        height: 180px;
    }

    .z03dfdlist-item-title {
        font-size: 16px;
    }

    .z03dfdpagelist {
        justify-content: center;
    }

    .z03dfdpagelist .pageinfo {
        width: 100%;
        order: -1;
        margin-bottom: 10px;
    }

    .z03dfdarticle-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }

    .z03dfdrelated-link {
        flex-direction: column;
    }

    .z03dfdrelated-thumb {
        width: 100%;
        height: 150px;
    }
}

@media (max-width: 480px) {
    .z03dfdarticle-grid {
        grid-template-columns: 1fr;
    }

    .z03dfdarticle-thumb {
        height: 180px;
    }

    .z03dfdbreadcrumb {
        font-size: 12px;
    }

    .z03dfdarticle-meta {
        flex-direction: column;
        gap: 8px;
    }
}

/* ===== 首页板块差异化布局 ===== */

/* 统一板块间距与标题 */
.z03dfdfeatures,
.z03dfdsecurity,
.z03dfddownload-section,
.z03dfdguide,
.z03dfdfaq,
.z03dfdarticles {
    padding: 64px 0;
}

.z03dfdsection-title {
    margin-bottom: 36px;
    font-size: 32px;
    padding-bottom: 16px;
}

.z03dfdsection-intro {
    margin: -12px auto 32px;
}

/* 产品特点：Bento 网格 + 左侧色条卡片 */
.z03dfdfeatures {
    background: #fff;
    border: none;
    border-radius: 0;
    margin: 0;
}

.z03dfdfeatures-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
}

.z03dfdfeatures-grid .z03dfdrow {
    display: contents;
    border: none;
    padding: 0;
    margin: 0;
    background: transparent;
}

.z03dfdfeatures-grid .z03dfdcol-md-4 {
    flex: none;
    max-width: none;
    padding: 0;
    border: none;
    display: flex;
}

.z03dfdfeatures .z03dfdfeature-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);
}

.z03dfdfeatures .z03dfdfeature-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z03dfdfeatures .z03dfdfeature-footer {
    margin-top: auto;
}

.z03dfdfeatures-grid .z03dfdcol-md-4:nth-child(3n+2) .z03dfdfeature-box {
    border-left-color: #34a853;
}

.z03dfdfeatures-grid .z03dfdcol-md-4:nth-child(3n) .z03dfdfeature-box {
    border-left-color: #7b1fa2;
}

.z03dfdfeatures .z03dfdfeature-header {
    display: flex;
    align-items: center;
    gap: 14px;
    text-align: left;
    padding: 20px 20px 10px;
    background: transparent;
    border-bottom: none;
}

.z03dfdfeatures .z03dfdfeature-header:after {
    display: none;
}

.z03dfdfeatures .z03dfdfeature-header h3 {
    border-bottom: none;
    padding: 0;
    font-size: 18px;
}

.z03dfdfeatures .z03dfdfeature-icon {
    margin: 0;
    font-size: 26px;
    padding: 8px;
    flex-shrink: 0;
}

.z03dfdfeatures .z03dfdfeature-list {
    border: none;
    background: transparent;
}

.z03dfdfeatures .z03dfdfeature-list li {
    padding: 8px 12px 8px 28px;
    border-bottom: 1px dashed #e8eef5;
    font-size: 13px;
}

.z03dfdfeatures .z03dfdfeature-detail {
    font-size: 11px;
    margin-top: 2px;
}

.z03dfdfeatures .z03dfdfeature-body {
    padding: 12px 16px 16px;
}

.z03dfdfeatures .z03dfdfeature-footer {
    padding-top: 10px;
    gap: 6px;
}

.z03dfdfeatures .z03dfdfeature-tag {
    font-size: 11px;
    padding: 3px 8px;
}

.z03dfdfeatures .z03dfdfeature-description {
    background: #f8fafc;
    border-left: none;
    border-radius: 8px;
    padding: 12px 14px;
}

.z03dfdfeatures .z03dfdfeature-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 */
.z03dfdsecurity {
    background: linear-gradient(160deg, #0a1628 0%, #1a3a5c 50%, #0d2137 100%);
}

.z03dfdsecurity-framework {
    margin: 0;
}

.z03dfdsecurity-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: stretch;
}

.z03dfdsecurity-col {
    flex: none;
    max-width: none;
    padding: 0;
    display: flex;
}

.z03dfdsecurity-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z03dfdsecurity-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z03dfdsecurity-footer {
    margin-top: auto;
}

.z03dfdsecurity .z03dfdsection-title {
    color: #fff;
    border-bottom-color: rgba(255, 255, 255, 0.15);
}

.z03dfdsecurity .z03dfdsection-title:after {
    background: #64b5f6;
}

.z03dfdsecurity .z03dfdsection-intro {
    color: rgba(255, 255, 255, 0.7);
}

.z03dfdsecurity-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);
}

.z03dfdsecurity-box:hover {
    background: rgba(255, 255, 255, 0.11);
    border-color: rgba(100, 181, 246, 0.4);
    transform: translateY(-4px);
}

.z03dfdsecurity-header {
    display: flex;
    align-items: center;
    gap: 12px;
    text-align: left;
    padding: 22px 22px 12px;
    background: transparent;
    border-bottom: none;
}

.z03dfdsecurity-header:after {
    display: none;
}

.z03dfdsecurity-header h3 {
    color: #fff;
    border-bottom: none;
    padding: 0;
}

.z03dfdsecurity-icon {
    font-size: 32px;
    margin: 0;
    border-color: rgba(100, 181, 246, 0.5);
}

.z03dfdsecurity-description {
    background: rgba(255, 255, 255, 0.06);
    border-left: 3px solid #64b5f6;
}

.z03dfdsecurity-description p {
    color: rgba(255, 255, 255, 0.85);
}

.z03dfdsecurity-list {
    border: none;
    background: transparent;
}

.z03dfdsecurity-list li {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

.z03dfdsecurity-title {
    color: #fff;
}

.z03dfdsecurity-detail {
    color: rgba(255, 255, 255, 0.55);
}

.z03dfdsecurity-footer {
    border-top-color: rgba(255, 255, 255, 0.1);
}

.z03dfdsecurity-metric {
    background: rgba(100, 181, 246, 0.15);
    border: 1px solid rgba(100, 181, 246, 0.25);
}

.z03dfdmetric-value {
    color: #64b5f6;
}

.z03dfdmetric-label {
    color: rgba(255, 255, 255, 0.6);
}

/* 下载中心：非对称双栏 + 渐变移动端卡片 */
.z03dfddownload-section {
    background: #f0f4f8;
}

.z03dfddownload-section .z03dfddownload-framework {
    margin: 0;
}

.z03dfddownload-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: stretch;
}

.z03dfddownload-col {
    flex: none;
    max-width: none;
    padding: 0;
    display: flex;
}

.z03dfddownload-box {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z03dfddownload-body {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.z03dfddownload-footer {
    margin-top: auto;
}

.z03dfddownload-col:first-child .z03dfddownload-box {
    background: #fff;
    border: 2px dashed #c5d9f0;
    box-shadow: none;
}

.z03dfddownload-col:first-child .z03dfddownload-box:hover {
    border-color: #1a73e8;
    border-style: solid;
}

.z03dfddownload-col:last-child .z03dfddownload-box {
    background: linear-gradient(145deg, #1a73e8 0%, #0d47a1 100%);
    border: none;
    color: #fff;
}

.z03dfddownload-col:last-child .z03dfddownload-header {
    background: transparent;
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.z03dfddownload-col:last-child .z03dfddownload-header h3,
.z03dfddownload-col:last-child .z03dfddownload-description p {
    color: #fff;
}

.z03dfddownload-col:last-child .z03dfddownload-description {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: rgba(255, 255, 255, 0.5);
}

.z03dfddownload-col:last-child .z03dfdinfo-item {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
}

.z03dfddownload-col:last-child .z03dfdinfo-label {
    color: rgba(255, 255, 255, 0.7);
}

.z03dfddownload-col:last-child .z03dfdinfo-value {
    color: #fff;
}

.z03dfddownload-col:last-child .z03dfdfeature-list {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.z03dfddownload-col:last-child .z03dfdfeature-list li {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

.z03dfddownload-col:last-child .z03dfdfeature-title {
    color: #fff;
}

.z03dfddownload-col:last-child .z03dfdfeature-detail {
    color: rgba(255, 255, 255, 0.65);
}

.z03dfddownload-col:last-child .z03dfdbtn-download {
    background: #fff;
    color: #1a73e8;
}

.z03dfddownload-col:last-child .z03dfdbtn-download:hover {
    background: #f0f7ff;
}

.z03dfddownload-col:last-child .z03dfddownload-tag {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    border-color: rgba(255, 255, 255, 0.3);
}

.z03dfddownload-section .z03dfddownload-header {
    padding: 20px 20px 12px;
}

.z03dfddownload-section .z03dfddownload-body {
    padding: 16px 20px 20px;
}

.z03dfddownload-section .z03dfdbtn-download {
    max-width: none;
    padding: 10px 20px;
}

.z03dfdsystem-requirements {
    margin-top: 36px;
    padding: 28px;
    background: #fff;
    border-radius: 16px;
    border: 1px solid #e0e8f0;
}

.z03dfdrequirements-grid {
    grid-template-columns: repeat(4, 1fr);
}

.z03dfdrequirement-box {
    text-align: center;
    background: #f8fafc;
    border-radius: 12px;
    padding: 18px 14px;
}

.z03dfdrequirement-header {
    flex-direction: column;
    justify-content: center;
    border-bottom: none;
    padding-bottom: 0;
}

.z03dfdrequirement-icon {
    font-size: 32px;
}

/* 使用指南：时间轴步骤 + 简约分类列表 */
.z03dfdguide {
    background: #fff;
}

.z03dfdguide-framework {
    margin: 0;
}

.z03dfdguide-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    position: relative;
    margin-bottom: 40px;
    padding-top: 20px;
    align-items: stretch;
}

.z03dfdguide-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;
}

.z03dfdguide-timeline .z03dfdstep-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;
}

.z03dfdguide-timeline .z03dfdstep-body {
    flex: 1;
}

.z03dfdguide-timeline .z03dfdstep-box:hover {
    border-color: #1a73e8;
    box-shadow: 0 8px 24px rgba(26, 115, 232, 0.1);
}

.z03dfdguide-timeline .z03dfdstep-header {
    flex-direction: column;
    gap: 8px;
    border-bottom: none;
    padding-bottom: 0;
}

.z03dfdguide-timeline .z03dfdstep-header:after {
    display: none;
}

.z03dfdguide-timeline .z03dfdstep-number {
    width: 48px;
    height: 48px;
    font-size: 22px;
    margin: 0 auto;
}

.z03dfdguide-details {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    align-items: start;
}

.z03dfdguide-category {
    background: transparent;
    border: none;
    box-shadow: none;
    border-top: 3px solid #1a73e8;
    border-radius: 0;
}

.z03dfdguide-category:nth-child(2) {
    border-top-color: #34a853;
}

.z03dfdguide-category:nth-child(3) {
    border-top-color: #7b1fa2;
}

.z03dfdguide-category:hover {
    transform: none;
    box-shadow: none;
}

.z03dfdguide-category .z03dfdcategory-header {
    background: transparent;
    border-bottom: none;
    justify-content: flex-start;
    padding: 16px 0 12px;
}

.z03dfdguide-category .z03dfdcategory-header:after {
    display: none;
}

.z03dfdguide-category .z03dfdcategory-body {
    padding: 0 0 16px;
}

.z03dfdguide-category .z03dfdcategory-list {
    border: none;
    background: transparent;
}

.z03dfdguide-category .z03dfdcategory-list li {
    padding: 10px 0;
    border-bottom: 1px solid #f0f0f0;
}

/* 常见问题：居中窄栏 + 分类标签式 */
.z03dfdfaq {
    background: #f8fafc;
}

.z03dfdfaq-framework {
    display: flex;
    flex-direction: column;
    gap: 32px;
    max-width: 880px;
    margin: 0 auto;
}

.z03dfdfaq-category {
    background: #fff;
    border: none;
    border-radius: 16px;
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.04);
    overflow: visible;
}

.z03dfdfaq-category:hover {
    transform: none;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.z03dfdfaq-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;
}

.z03dfdfaq-header:after {
    display: none;
}

.z03dfdfaq-body {
    padding: 0 24px 20px;
}

.z03dfdfaq-item {
    border: none;
    border-radius: 0;
    border-bottom: 1px solid #f0f0f0;
    margin-bottom: 0;
}

.z03dfdfaq-item:last-child {
    border-bottom: none;
}

.z03dfdfaq-question {
    background: transparent;
    padding: 16px 0;
    cursor: default;
}

.z03dfdfaq-question:hover {
    background: transparent;
}

.z03dfdfaq-answer {
    padding: 0 0 16px 36px;
    background: transparent;
}

/* 最新资讯：图片底部渐变叠加 */
.z03dfdarticles {
    background: #fff;
}

.z03dfdarticle-grid {
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    align-items: stretch;
}

.z03dfdarticle-card {
    border: none;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.z03dfdarticle-link {
    position: relative;
    display: block;
    height: 100%;
    min-height: 168px;
}

.z03dfdarticle-thumb {
    height: 168px;
    min-height: 168px;
}

.z03dfdarticle-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z03dfdarticle-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%);
}

.z03dfdarticle-title {
    color: #fff;
    font-size: 14px;
    margin-bottom: 4px;
    -webkit-line-clamp: 2;
}

.z03dfdarticle-card:hover .z03dfdarticle-title {
    color: #fff;
}

.z03dfdarticle-date {
    color: rgba(255, 255, 255, 0.75);
}

/* 首页板块响应式 */
@media (max-width: 992px) {
    .z03dfdfeatures-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z03dfdsecurity-row {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }

    .z03dfdsecurity-header {
        padding: 16px 14px 10px;
    }

    .z03dfdsecurity-body {
        padding: 14px 16px;
    }

    .z03dfdsecurity-header h3 {
        font-size: 16px;
    }

    .z03dfddownload-row {
        grid-template-columns: 1fr;
    }

    .z03dfdguide-timeline {
        grid-template-columns: 1fr;
        padding-top: 0;
    }

    .z03dfdguide-timeline::before {
        display: none;
    }

    .z03dfdguide-details {
        grid-template-columns: 1fr;
    }

    .z03dfdrequirements-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z03dfdarticle-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z03dfdhero {
        padding: 120px 0 56px;
    }
}

@media (max-width: 768px) {
    .z03dfdfeatures,
    .z03dfdsecurity,
    .z03dfddownload-section,
    .z03dfdguide,
    .z03dfdfaq,
    .z03dfdarticles {
        padding: 48px 0;
    }

    .z03dfdheader .z03dfdcontainer {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        height: 60px;
        padding: 0 15px;
    }

    .z03dfdlogo h1 {
        margin-bottom: 0;
        font-size: 18px;
    }

    .z03dfdhero {
        padding: 100px 0 48px;
    }

    .z03dfdhero-content {
        flex-direction: column;
        text-align: center;
        gap: 28px;
    }

    .z03dfdhero-image {
        max-width: 100%;
        width: 100%;
    }

    .z03dfdfeatures-grid {
        grid-template-columns: 1fr;
    }

    .z03dfdsecurity-row {
        grid-template-columns: 1fr;
    }

    .z03dfdrequirements-grid {
        grid-template-columns: 1fr 1fr;
    }

    .z03dfdarticle-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z03dfdarticle-thumb,
    .z03dfdarticle-link {
        min-height: 150px;
    }

    .z03dfdarticle-thumb {
        height: 150px;
    }

    .z03dfddownload-buttons {
        flex-direction: column;
        align-items: center;
    }

    .z03dfdbtn {
        margin: 6px 0;
        width: 100%;
        max-width: 280px;
    }

    .z03dfdfaq-answer {
        padding-left: 0;
    }
}

@media (max-width: 480px) {
    .z03dfdcontainer {
        padding: 0 16px;
    }

    .z03dfdsection-title {
        font-size: 24px;
        margin-bottom: 28px;
    }

    .z03dfdsection-intro {
        margin: -8px auto 24px;
        font-size: 14px;
    }

    .z03dfdarticle-grid {
        grid-template-columns: 1fr;
    }

    .z03dfdrequirements-grid {
        grid-template-columns: 1fr;
    }

    .z03dfdhero-text h2 {
        font-size: 26px;
    }
}

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

.z03dfdmain-nav ul {
    flex-wrap: wrap;
    gap: 4px 20px;
}

.z03dfdsecurity-framework {
    margin: 0 !important;
}

.z03dfdguide-framework {
    margin: 0 !important;
}

.z03dfdfaq-framework {
    margin: 0 auto !important;
}

.z03dfdrow {
    margin: 0;
    padding: 0;
    border: none;
    background: transparent;
}

.z03dfdfeatures-grid .z03dfdcol-md-4 {
    border: none !important;
}

@media (max-width: 768px) {
    .z03dfdheader {
        position: fixed !important;
        width: 100%;
        top: 0;
    }

    .z03dfdheader .z03dfdcontainer {
        flex-direction: row !important;
        justify-content: space-between;
        align-items: center;
        height: 60px !important;
        padding: 0 15px !important;
    }

    .z03dfdsecurity-row {
        grid-template-columns: 1fr !important;
    }

    .z03dfddownload-section .z03dfddownload-body {
        padding: 14px 16px 16px;
    }

    .z03dfdguide-timeline .z03dfdstep-body {
        padding: 14px;
    }

    .z03dfdguide-timeline .z03dfdstep-list li {
        padding: 8px 12px;
    }
}

@media (min-width: 769px) and (max-width: 1100px) {
    .z03dfdmain-nav li {
        margin-left: 16px;
    }

    .z03dfdmain-nav a {
        font-size: 14px;
    }
}

/* 打印样式优化 */
@media print {
    .z03dfdheader,
    .z03dfdhero,
    .z03dfddownload-buttons,
    .z03dfdfooter {
        display: none;
    }

    .z03dfdcontainer {
        max-width: 100%;
        padding: 0;
    }

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

    .z03dfdsection-title {
        font-size: 18pt;
        margin-bottom: 20pt;
    }

    .z03dfdfeature-box,
    .z03dfdsecurity-box,
    .z03dfddownload-box,
    .z03dfdguide-category,
    .z03dfdfaq-category {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}