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

body {
    font-family: 'Microsoft YaHei', 'SimHei', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #fff;
}

.ze74dacontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.ze74daheader {
    background-color: #1a1a1a;
    color: #fff;
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.ze74daheader .ze74dacontainer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.ze74dalogo {
    flex-shrink: 0;
    z-index: 1001;
}

.ze74dalogo-text {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 5px;
}

.ze74dalogo-subtitle {
    font-size: 12px;
    color: #ccc;
}

.ze74danav {
    position: relative;
}

.ze74danav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
    padding: 0;
}

.ze74danav-item {
    margin: 0;
    padding: 0;
}

.ze74danav-link {
    color: #fff;
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
    padding: 5px 0;
    display: block;
    white-space: nowrap;
}

.ze74danav-link:hover {
    color: #ff6b35;
}

.ze74damobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    z-index: 1001;
    position: relative;
}

.ze74damenu-icon {
    width: 25px;
    height: 3px;
    background-color: #fff;
    transition: all 0.3s;
    border-radius: 2px;
}

.ze74damobile-menu-toggle.ze74damenu-active .ze74damenu-icon:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.ze74damobile-menu-toggle.ze74damenu-active .ze74damenu-icon:nth-child(2) {
    opacity: 0;
}

.ze74damobile-menu-toggle.ze74damenu-active .ze74damenu-icon:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* 主横幅 */
.ze74dahero {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: #fff;
    padding: 50px 0;
    position: relative;
    overflow: hidden;
}

.ze74dahero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

.ze74dahero-wrapper {
    position: relative;
    z-index: 2;
    display: flex;
    align-items: center;
    gap: 40px;
    min-height: 400px;
}

.ze74dahero-content {
    flex: 1;
    text-align: left;
}

.ze74dahero-image {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ze74dahero-img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    animation: ze74dafadeInUp 1s ease-out;
}

@keyframes ze74dafadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ze74dahero-title {
    font-size: 48px;
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.2;
    animation: ze74dafadeInLeft 0.8s ease-out;
}

@keyframes ze74dafadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.ze74dahero-subtitle {
    font-size: 20px;
    margin-bottom: 25px;
    color: #e0e0e0;
}

.ze74dahero-features {
    display: flex;
    justify-content: flex-start;
    gap: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.ze74dafeature-item {
    display: flex;
    align-items: center;
    gap: 10px;
}

.ze74dafeature-icon {
    width: 30px;
    height: 30px;
    background-color: #ff6b35;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #fff;
}

.ze74dafeature-text {
    font-size: 16px;
}

.ze74dahero-cta {
    display: flex;
    justify-content: flex-start;
    gap: 15px;
    flex-wrap: wrap;
}

/* 按钮样式 */
.ze74dabtn {
    display: inline-block;
    padding: 15px 40px;
    font-size: 16px;
    text-decoration: none;
    border-radius: 5px;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
    font-weight: bold;
}

.ze74dabtn-primary {
    background-color: #ff6b35;
    color: #fff;
}

.ze74dabtn-primary:hover {
    background-color: #e55a2b;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3);
}

.ze74dabtn-secondary {
    background-color: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.ze74dabtn-secondary:hover {
    background-color: #fff;
    color: #1a1a1a;
}

.ze74dabtn-block {
    width: 100%;
    text-align: center;
}

/* 通用区块标题 */
.ze74dasection-header {
    text-align: center;
    margin-bottom: 60px;
}

.ze74dasection-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.ze74dasection-subtitle {
    font-size: 18px;
    color: #666;
}

/* 服务项目 */
.ze74daservices {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.ze74daservices-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.ze74daservice-card {
    background-color: #fff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
}

.ze74daservice-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.ze74daservice-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.ze74daservice-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.ze74daservice-desc {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
    line-height: 1.8;
}

.ze74daservice-list {
    list-style: none;
    text-align: left;
    margin-top: 20px;
}

.ze74daservice-list li {
    padding: 8px 0;
    padding-left: 25px;
    position: relative;
    color: #555;
}

.ze74daservice-list li:before {
    content: "•";
    position: absolute;
    left: 0;
    color: #ff6b35;
    font-weight: bold;
    font-size: 20px;
}

/* 服务范围 */
.ze74dascope {
    padding: 80px 0;
    background-color: #fff;
}

.ze74dascope-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.ze74dascope-item {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid #ff6b35;
    transition: all 0.3s;
}

.ze74dascope-item:hover {
    background-color: #fff;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.ze74dascope-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.ze74dascope-list {
    list-style: none;
}

.ze74dascope-list li {
    padding: 10px 0;
    padding-left: 25px;
    position: relative;
    color: #555;
    border-bottom: 1px solid #e0e0e0;
}

.ze74dascope-list li:last-child {
    border-bottom: none;
}

.ze74dascope-list li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ff6b35;
    font-weight: bold;
}

/* 服务优势 */
.ze74daadvantages {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.ze74daadvantages-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.ze74daadvantage-item {
    text-align: center;
    padding: 30px;
    border-radius: 10px;
    background-color: #f8f9fa;
    transition: all 0.3s;
}

.ze74daadvantage-item:hover {
    background-color: #fff;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.ze74daadvantage-number {
    font-size: 48px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 15px;
    opacity: 0.3;
}

.ze74daadvantage-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.ze74daadvantage-desc {
    font-size: 16px;
    color: #666;
    line-height: 1.8;
}

/* 成功案例 */
.ze74dacases {
    padding: 80px 0;
    background-color: #fff;
}

.ze74dacases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.ze74dacase-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.ze74dacase-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.ze74dacase-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.ze74dacase-tag {
    background-color: #ff6b35;
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: bold;
}

.ze74dacase-amount {
    font-size: 18px;
    font-weight: bold;
    color: #ff6b35;
}

.ze74dacase-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.ze74dacase-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.ze74dacase-process {
    margin-bottom: 20px;
}

.ze74dacase-process-title {
    font-size: 16px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #1a1a1a;
}

.ze74dacase-process-list {
    list-style: none;
    padding-left: 0;
}

.ze74dacase-process-list li {
    font-size: 14px;
    color: #555;
    padding: 5px 0;
    padding-left: 20px;
    position: relative;
}

.ze74dacase-process-list li:before {
    content: "→";
    position: absolute;
    left: 0;
    color: #ff6b35;
}

.ze74dacase-result {
    padding-top: 15px;
    border-top: 2px solid #ff6b35;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.ze74dacase-result-label {
    font-weight: bold;
    color: #1a1a1a;
}

.ze74dacase-result-value {
    color: #ff6b35;
    font-weight: bold;
}

/* 客户评价 */
.ze74datestimonials {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.ze74datestimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.ze74datestimonial-card {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s;
}

.ze74datestimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.ze74datestimonial-rating {
    color: #ff6b35;
    font-size: 20px;
    margin-bottom: 15px;
}

.ze74datestimonial-text {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
    font-style: italic;
}

.ze74datestimonial-author {
    border-top: 1px solid #e0e0e0;
    padding-top: 15px;
}

.ze74datestimonial-name {
    font-weight: bold;
    color: #1a1a1a;
    margin-bottom: 5px;
}

.ze74datestimonial-company {
    font-size: 14px;
    color: #999;
}

/* 服务流程 */
.ze74daprocess {
    padding: 80px 0;
    background-color: #fff;
}

.ze74daprocess-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.ze74daprocess-step {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 30px 20px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s;
}

.ze74daprocess-step:hover {
    transform: translateY(-5px);
}

.ze74dastep-number {
    width: 60px;
    height: 60px;
    background-color: #ff6b35;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: bold;
    margin: 0 auto 20px;
}

.ze74dastep-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #1a1a1a;
}

.ze74dastep-desc {
    font-size: 14px;
    color: #666;
    line-height: 1.6;
}

.ze74daprocess-arrow {
    font-size: 32px;
    color: #ff6b35;
    font-weight: bold;
}

/* 收费标准 */
.ze74dapricing {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.ze74dapricing-content {
    max-width: 1000px;
    margin: 0 auto;
}

.ze74dapricing-note {
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 30px;
    text-align: center;
    border-left: 4px solid #ff6b35;
}

.ze74dapricing-note p {
    font-size: 16px;
    color: #666;
    margin: 0;
}

.ze74dapricing-table {
    background-color: #fff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    margin-bottom: 30px;
}

.ze74dapricing-row {
    display: grid;
    grid-template-columns: 1fr 1fr 1.5fr;
    border-bottom: 1px solid #e0e0e0;
}

.ze74dapricing-row:last-child {
    border-bottom: none;
}

.ze74dapricing-header {
    background-color: #1a1a1a;
    color: #fff;
}

.ze74dapricing-cell {
    padding: 20px;
    font-size: 16px;
    color: #333;
}

.ze74dapricing-header .ze74dapricing-cell {
    color: #fff;
    font-weight: bold;
}

.ze74dapricing-row:not(.ze74dapricing-header):hover {
    background-color: #f8f9fa;
}

.ze74dapricing-features {
    background-color: #fff;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.ze74dapricing-features-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.ze74dapricing-features-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 15px;
}

.ze74dapricing-features-list li {
    font-size: 15px;
    color: #666;
    padding: 10px 0;
}

/* 团队介绍 */
.ze74dateam {
    padding: 80px 0;
    background-color: #fff;
}

.ze74dateam-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.ze74dateam-item {
    background-color: #f8f9fa;
    padding: 40px 30px;
    border-radius: 10px;
    text-align: center;
    transition: all 0.3s;
}

.ze74dateam-item:hover {
    background-color: #fff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.ze74dateam-icon {
    font-size: 48px;
    margin-bottom: 20px;
}

.ze74dateam-title {
    font-size: 22px;
    font-weight: bold;
    margin-bottom: 15px;
    color: #1a1a1a;
}

.ze74dateam-desc {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
}

.ze74dateam-stats {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

.ze74dateam-stats span {
    font-size: 14px;
    color: #ff6b35;
    font-weight: bold;
}

/* 关于我们 */
.ze74daabout {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.ze74daabout-content {
    max-width: 900px;
    margin: 0 auto;
}

.ze74daabout-title {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 30px;
    text-align: center;
    color: #1a1a1a;
}

.ze74daabout-desc {
    font-size: 18px;
    color: #666;
    line-height: 1.8;
    margin-bottom: 20px;
    text-align: justify;
}

.ze74dastats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.ze74dastat-item {
    text-align: center;
    padding: 30px;
    background-color: #f8f9fa;
    border-radius: 10px;
    transition: transform 0.3s;
}

.ze74dastat-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.ze74dastat-number {
    font-size: 42px;
    font-weight: bold;
    color: #ff6b35;
    margin-bottom: 10px;
}

.ze74dastat-label {
    font-size: 16px;
    color: #666;
}

.ze74daabout-features {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 2px solid #e0e0e0;
}

.ze74daabout-features-title {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 30px;
    text-align: center;
    color: #1a1a1a;
}

.ze74daabout-features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.ze74daabout-feature {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background-color: #fff;
    border-radius: 8px;
    transition: all 0.3s;
}

.ze74daabout-feature:hover {
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transform: translateX(5px);
}

.ze74daabout-feature-icon {
    width: 30px;
    height: 30px;
    background-color: #ff6b35;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.ze74daabout-feature-text {
    font-size: 16px;
    color: #555;
}

/* 常见问题 */
.ze74dafaq {
    padding: 80px 0;
    background-color: #fff;
}

.ze74dafaq-list {
    max-width: 900px;
    margin: 0 auto;
}

.ze74dafaq-item {
    background-color: #f8f9fa;
    margin-bottom: 20px;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s;
}

.ze74dafaq-item:hover {
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.ze74dafaq-question {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 25px 30px;
    cursor: pointer;
    background-color: #fff;
    border-bottom: 1px solid #e0e0e0;
}

.ze74dafaq-icon {
    width: 35px;
    height: 35px;
    background-color: #ff6b35;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
    flex-shrink: 0;
}

.ze74dafaq-title {
    font-size: 18px;
    font-weight: bold;
    color: #1a1a1a;
    margin: 0;
}

.ze74dafaq-answer {
    padding: 25px 30px;
    padding-left: 70px;
}

.ze74dafaq-answer p {
    font-size: 15px;
    color: #666;
    line-height: 1.8;
    margin: 0;
}

/* 联系我们 */
.ze74dacontact {
    padding: 80px 0;
    background-color: #1a1a1a;
    color: #fff;
}

.ze74dacontact .ze74dasection-title,
.ze74dacontact .ze74dasection-subtitle {
    color: #fff;
}

.ze74dacontact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.ze74dacontact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 40px;
}

.ze74dacontact-icon {
    font-size: 32px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #ff6b35;
    border-radius: 10px;
    flex-shrink: 0;
}

.ze74dacontact-title {
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 10px;
}

.ze74dacontact-text {
    font-size: 16px;
    color: #ccc;
    margin-bottom: 5px;
}

.ze74dacontact-form-wrapper {
    background-color: #2d2d2d;
    padding: 40px;
    border-radius: 10px;
}

.ze74daform-group {
    margin-bottom: 20px;
}

.ze74daform-input,
.ze74daform-textarea {
    width: 100%;
    padding: 15px;
    font-size: 16px;
    border: 1px solid #444;
    border-radius: 5px;
    background-color: #1a1a1a;
    color: #fff;
    font-family: inherit;
}

.ze74daform-input:focus,
.ze74daform-textarea:focus {
    outline: none;
    border-color: #ff6b35;
}

.ze74daform-textarea {
    resize: vertical;
}

/* 页脚 */
.ze74dafooter {
    background-color: #0f0f0f;
    color: #ccc;
    padding: 50px 0 20px;
}

.ze74dafooter-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.ze74dafooter-title {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 20px;
}

.ze74dafooter-text {
    font-size: 14px;
    line-height: 1.8;
    color: #999;
}

.ze74dafooter-links {
    list-style: none;
}

.ze74dafooter-links li {
    margin-bottom: 10px;
}

.ze74dafooter-link {
    color: #999;
    text-decoration: none;
    transition: color 0.3s;
}

.ze74dafooter-link:hover {
    color: #ff6b35;
}

.ze74dafooter-cert {
    margin-top: 20px;
}

.ze74dafooter-cert-item {
    font-size: 14px;
    color: #999;
    margin-bottom: 8px;
}

.ze74dafooter-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #333;
}

.ze74dafooter-copyright {
    font-size: 14px;
    color: #666;
}

/* 响应式设计 */

/* 桌面端 (大于768px) - 确保导航正常显示 */
@media (min-width: 769px) {
    .ze74danav-list {
        display: flex !important;
        position: static;
        flex-direction: row;
        background-color: transparent;
        box-shadow: none;
        border-top: none;
        padding: 0;
        max-height: none;
    }

    .ze74damobile-menu-toggle {
        display: none !important;
    }

    .ze74danav-item {
        width: auto;
        border-bottom: none;
    }

    .ze74danav-link {
        padding: 5px 0;
        min-height: auto;
        line-height: normal;
        text-align: left;
    }

    .ze74danav-link:hover,
    .ze74danav-link:active {
        padding-left: 0;
        background-color: transparent;
    }
}

/* 平板设备 (768px - 1024px) */
@media (max-width: 1024px) and (min-width: 769px) {
    .ze74dacontainer {
        padding: 0 15px;
    }

    .ze74dahero-title {
        font-size: 40px;
    }

    .ze74dasection-title {
        font-size: 32px;
    }

    .ze74dascope-grid,
    .ze74daadvantages-content,
    .ze74dacases-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* 移动设备 (最大宽度 768px) */
@media (max-width: 768px) {
    .ze74dacontainer {
        padding: 0 15px;
    }

    /* 头部导航优化 */
    .ze74daheader {
        padding: 12px 0;
        position: relative;
    }

    .ze74daheader .ze74dacontainer {
        position: relative;
        width: 100%;
    }

    .ze74dalogo {
        flex: 1;
        z-index: 1002;
    }

    .ze74dalogo-text {
        font-size: 18px;
        margin-bottom: 3px;
    }

    .ze74dalogo-subtitle {
        font-size: 11px;
    }

    /* 显示移动端菜单按钮 */
    .ze74damobile-menu-toggle {
        display: flex !important;
        padding: 8px;
        min-width: 44px;
        min-height: 44px;
        align-items: center;
        justify-content: center;
        z-index: 1002;
        position: relative;
    }

    /* 隐藏桌面端导航，显示移动端导航 */
    .ze74danav {
        position: static;
    }

    .ze74danav-list {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        background-color: #1a1a1a;
        flex-direction: column;
        padding: 0;
        margin: 0;
        gap: 0;
        display: none !important; /* 默认隐藏 */
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
        border-top: 1px solid #333;
        z-index: 1000;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease-out, padding 0.3s ease-out;
    }

    /* 激活状态显示导航 */
    .ze74danav-list.ze74danav-active {
        display: flex !important;
        max-height: 500px;
        padding: 15px 20px;
    }

    .ze74danav-item {
        width: 100%;
        border-bottom: 1px solid #333;
        margin: 0;
        padding: 0;
    }

    .ze74danav-item:last-child {
        border-bottom: none;
    }

    .ze74danav-link {
        display: block;
        padding: 15px 0;
        font-size: 16px;
        min-height: 44px;
        line-height: 44px;
        width: 100%;
        text-align: left;
        white-space: normal;
    }

    .ze74danav-link:hover,
    .ze74danav-link:active {
        color: #ff6b35;
        background-color: rgba(255, 107, 53, 0.1);
        padding-left: 10px;
        transition: all 0.3s;
    }

    /* 主横幅优化 */
    .ze74dahero {
        padding: 40px 0;
    }

    .ze74dahero-wrapper {
        flex-direction: column;
        gap: 30px;
        min-height: auto;
        text-align: center;
    }

    .ze74dahero-content {
        text-align: center;
    }

    .ze74dahero-image {
        order: -1;
    }

    .ze74dahero-img {
        max-width: 100%;
        height: auto;
        border-radius: 8px;
    }

    .ze74dahero-title {
        font-size: 28px;
        line-height: 1.3;
        margin-bottom: 12px;
    }

    .ze74dahero-subtitle {
        font-size: 16px;
        margin-bottom: 20px;
    }

    .ze74dahero-features {
        flex-direction: column;
        gap: 15px;
        justify-content: center;
        align-items: center;
        margin-bottom: 25px;
    }

    .ze74dafeature-item {
        justify-content: center;
    }

    .ze74dahero-cta {
        justify-content: center;
        gap: 12px;
    }

    .ze74dabtn {
        min-height: 44px;
        padding: 12px 24px;
        font-size: 15px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* 区块标题优化 */
    .ze74dasection-header {
        margin-bottom: 40px;
    }

    .ze74dasection-title {
        font-size: 26px;
        margin-bottom: 12px;
    }

    .ze74dasection-subtitle {
        font-size: 15px;
    }

    /* 通用区块间距优化 */
    .ze74dascope,
    .ze74daadvantages,
    .ze74dacases,
    .ze74daprocess,
    .ze74dateam,
    .ze74dafaq,
    .ze74dacontact {
        padding: 50px 0;
    }

    /* 服务范围优化 */
    .ze74dascope-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .ze74dascope-item {
        padding: 25px 20px;
    }

    .ze74dascope-title {
        font-size: 20px;
        margin-bottom: 15px;
    }

    /* 服务优势优化 */
    .ze74daadvantages-content {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .ze74daadvantage-item {
        padding: 25px 20px;
    }

    .ze74daadvantage-number {
        font-size: 40px;
    }

    .ze74daadvantage-title {
        font-size: 20px;
    }

    /* 成功案例优化 */
    .ze74dacases-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .ze74dacase-card {
        padding: 25px 20px;
    }

    .ze74dacase-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        margin-bottom: 15px;
    }

    .ze74dacase-title {
        font-size: 18px;
    }

    .ze74dacase-result {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    /* 服务流程优化 */
    .ze74daprocess-steps {
        flex-direction: column;
        gap: 15px;
    }

    .ze74daprocess-step {
        min-width: 100%;
        width: 100%;
    }

    .ze74daprocess-arrow {
        transform: rotate(90deg);
        margin: 5px 0;
        font-size: 28px;
    }

    /* 团队介绍优化 */
    .ze74dateam-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .ze74dateam-item {
        padding: 30px 20px;
    }

    /* 常见问题优化 */
    .ze74dafaq-question {
        padding: 20px;
        gap: 12px;
    }

    .ze74dafaq-title {
        font-size: 16px;
        line-height: 1.4;
    }

    .ze74dafaq-answer {
        padding: 20px;
        padding-left: 20px;
    }

    .ze74dafaq-answer p {
        font-size: 14px;
    }

    /* 联系我们优化 */
    .ze74dacontact-content {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .ze74dacontact-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
        margin-bottom: 30px;
    }

    .ze74dacontact-icon {
        font-size: 28px;
        width: 50px;
        height: 50px;
    }

    .ze74dacontact-form-wrapper {
        padding: 30px 20px;
    }

    .ze74daform-input,
    .ze74daform-textarea {
        padding: 12px;
        font-size: 16px; /* 防止iOS自动缩放 */
        min-height: 44px;
    }

    /* 页脚优化 */
    .ze74dafooter {
        padding: 40px 0 20px;
    }

    .ze74dafooter-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .ze74dastats {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    /* 表格优化 */
    .ze74dapricing-row {
        grid-template-columns: 1fr;
        border-bottom: 2px solid #e0e0e0;
    }

    .ze74dapricing-header {
        display: none;
    }

    .ze74dapricing-cell {
        padding: 12px 15px;
        border-bottom: 1px solid #e0e0e0;
        display: block;
    }

    .ze74dapricing-cell:last-child {
        border-bottom: none;
    }

    .ze74dapricing-row:not(.ze74dapricing-header) .ze74dapricing-cell:first-child {
        font-weight: bold;
        background-color: #f8f9fa;
        border-bottom: 1px solid #e0e0e0;
    }
}

/* 小屏移动设备 (最大宽度 480px) */
@media (max-width: 480px) {
    .ze74dacontainer {
        padding: 0 12px;
    }

    /* 头部进一步优化 */
    .ze74daheader {
        padding: 10px 0;
    }

    .ze74dalogo-text {
        font-size: 16px;
    }

    .ze74dalogo-subtitle {
        font-size: 10px;
    }

    /* 确保移动端菜单按钮显示 */
    .ze74damobile-menu-toggle {
        display: flex !important;
        min-width: 40px;
        min-height: 40px;
        padding: 6px;
    }

    /* 确保导航列表默认隐藏 */
    .ze74danav-list {
        display: none !important;
    }

    /* 激活状态显示导航 */
    .ze74danav-list.ze74danav-active {
        display: flex !important;
        padding: 12px 15px;
    }

    .ze74danav-link {
        padding: 12px 0;
        font-size: 15px;
        min-height: 44px;
        line-height: 20px;
        padding-top: 12px;
        padding-bottom: 12px;
    }

    /* 主横幅进一步优化 */
    .ze74dahero {
        padding: 30px 0;
    }

    .ze74dahero-wrapper {
        gap: 20px;
    }

    .ze74dahero-title {
        font-size: 22px;
        line-height: 1.3;
    }

    .ze74dahero-subtitle {
        font-size: 14px;
        margin-bottom: 18px;
    }

    .ze74dahero-features {
        gap: 12px;
        margin-bottom: 20px;
    }

    .ze74dafeature-icon {
        width: 26px;
        height: 26px;
        font-size: 14px;
    }

    .ze74dafeature-text {
        font-size: 14px;
    }

    .ze74dahero-cta {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }

    .ze74dabtn {
        width: 100%;
        padding: 14px 20px;
        font-size: 15px;
    }

    /* 区块标题进一步优化 */
    .ze74dasection-header {
        margin-bottom: 30px;
    }

    .ze74dasection-title {
        font-size: 22px;
    }

    .ze74dasection-subtitle {
        font-size: 14px;
    }

    /* 通用区块间距进一步优化 */
    .ze74dascope,
    .ze74daadvantages,
    .ze74dacases,
    .ze74daprocess,
    .ze74dateam,
    .ze74dafaq,
    .ze74dacontact {
        padding: 40px 0;
    }

    /* 卡片内边距优化 */
    .ze74dascope-item,
    .ze74daadvantage-item,
    .ze74dacase-card,
    .ze74dateam-item {
        padding: 20px 15px;
    }

    /* 服务范围进一步优化 */
    .ze74dascope-title {
        font-size: 18px;
    }

    .ze74dascope-list li {
        font-size: 14px;
        padding: 8px 0;
        padding-left: 22px;
    }

    /* 服务优势进一步优化 */
    .ze74daadvantage-number {
        font-size: 36px;
    }

    .ze74daadvantage-title {
        font-size: 18px;
    }

    .ze74daadvantage-desc {
        font-size: 14px;
    }

    /* 成功案例进一步优化 */
    .ze74dacase-title {
        font-size: 17px;
    }

    .ze74dacase-desc {
        font-size: 14px;
    }

    .ze74dacase-amount {
        font-size: 16px;
    }

    /* 服务流程进一步优化 */
    .ze74dastep-number {
        width: 50px;
        height: 50px;
        font-size: 24px;
    }

    .ze74dastep-title {
        font-size: 18px;
    }

    .ze74dastep-desc {
        font-size: 13px;
    }

    /* 常见问题进一步优化 */
    .ze74dafaq-question {
        padding: 15px;
    }

    .ze74dafaq-icon {
        width: 30px;
        height: 30px;
        font-size: 16px;
    }

    .ze74dafaq-title {
        font-size: 15px;
    }

    .ze74dafaq-answer {
        padding: 15px;
    }

    .ze74dafaq-answer p {
        font-size: 13px;
    }

    /* 联系我们进一步优化 */
    .ze74dacontact-content {
        gap: 30px;
    }

    .ze74dacontact-form-wrapper {
        padding: 20px 15px;
    }

    .ze74dacontact-title {
        font-size: 18px;
    }

    .ze74dacontact-text {
        font-size: 14px;
    }

    /* 页脚进一步优化 */
    .ze74dafooter {
        padding: 35px 0 15px;
    }

    .ze74dafooter-title {
        font-size: 18px;
    }

    .ze74dafooter-text,
    .ze74dafooter-links li {
        font-size: 13px;
    }

    /* 统计数据优化 */
    .ze74dastats {
        grid-template-columns: 1fr;
    }

    .ze74dastat-number {
        font-size: 36px;
    }

    .ze74dastat-label {
        font-size: 14px;
    }

    /* 团队统计优化 */
    .ze74dateam-stats {
        flex-direction: column;
        gap: 8px;
    }

    /* 定价功能列表优化 */
    .ze74dapricing-features-list {
        grid-template-columns: 1fr;
    }
}

/* 超小屏设备 (最大宽度 360px) */
@media (max-width: 360px) {
    .ze74dacontainer {
        padding: 0 10px;
    }

    .ze74dahero-title {
        font-size: 20px;
    }

    .ze74dasection-title {
        font-size: 20px;
    }

    .ze74dabtn {
        padding: 12px 18px;
        font-size: 14px;
    }
}

/* 横屏模式优化 */
@media (max-width: 768px) and (orientation: landscape) {
    .ze74dahero {
        padding: 25px 0;
    }

    .ze74dahero-wrapper {
        gap: 20px;
    }

    .ze74dahero-title {
        font-size: 24px;
    }
}

/* 移动端触摸优化 */
@media (max-width: 768px) {
    /* 优化可点击元素的触摸反馈 */
    .ze74dabtn,
    .ze74danav-link,
    .ze74dafooter-link {
        -webkit-tap-highlight-color: rgba(255, 107, 53, 0.3);
    }

    /* 优化按钮触摸反馈 */
    .ze74dabtn:active {
        transform: scale(0.98);
    }

    /* 优化卡片触摸反馈 */
    .ze74dacase-card:active,
    .ze74daservice-card:active,
    .ze74daadvantage-item:active {
        transform: scale(0.98);
    }

    /* 防止文本选择（在某些情况下） */
    .ze74danav-link {
        -webkit-user-select: none;
        user-select: none;
    }

    /* 优化图片加载 */
    .ze74dahero-img {
        max-width: 100%;
        height: auto;
        display: block;
    }
}

/* 移动端滚动优化 */
@media (max-width: 768px) {
    html {
        -webkit-overflow-scrolling: touch;
    }

    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* 打印样式 */
@media print {
    .ze74daheader,
    .ze74dafooter,
    .ze74dahero-cta,
    .ze74dacontact-form-wrapper {
        display: none;
    }
}