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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

/* 容器样式 */
.zfa4bccontainer {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏样式 */
.zfa4bcheader {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.zfa4bcnav_container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.zfa4bclogo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.zfa4bclogo h1 a {
    text-decoration: none;
    color: inherit;
    transition: opacity 0.3s ease;
}

.zfa4bclogo h1 a:hover {
    opacity: 0.8;
}

.zfa4bcnav_menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.zfa4bcnav_menu a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.zfa4bcnav_menu a:hover {
    color: #667eea;
}

.zfa4bcnav_menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    transition: width 0.3s ease;
}

.zfa4bcnav_menu a:hover::after {
    width: 100%;
}

.zfa4bcmobile_menu {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.zfa4bcmobile_menu span {
    width: 25px;
    height: 3px;
    background: #333;
    transition: all 0.3s ease;
}

/* 主横幅样式 */
.zfa4bchero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.zfa4bchero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.zfa4bchero_container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 1;
}

.zfa4bchero_title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.zfa4bchero_subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.zfa4bchero_features {
    display: flex;
    gap: 2rem;
    margin-bottom: 2rem;
}

.zfa4bcfeature_item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.zfa4bcfeature_icon {
    width: 24px;
    height: 24px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #4CAF50;
}

.zfa4bchero_buttons {
    display: flex;
    gap: 1rem;
}

.zfa4bcbtn {
    padding: 12px 24px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.zfa4bcbtn_primary {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.zfa4bcbtn_primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

.zfa4bcbtn_secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.zfa4bcbtn_secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.zfa4bchero_visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.zfa4bchero_img {
    max-width: 400px;
    width: 100%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
}

.zfa4bchero_img:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 50px rgba(0, 0, 0, 0.4);
}

/* 产品服务样式 */
.zfa4bcproducts {
    padding: 80px 0;
    background: white;
}

.zfa4bcsection_header {
    text-align: center;
    margin-bottom: 4rem;
}

.zfa4bcsection_title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.zfa4bcsection_subtitle {
    font-size: 1.1rem;
    color: #666;
    max-width: 600px;
    margin: 0 auto;
}

.zfa4bcproducts_grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.zfa4bcproduct_card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f0f0f0;
}

.zfa4bcproduct_card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.zfa4bcproduct_icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.zfa4bcproduct_card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.zfa4bcproduct_card p {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.zfa4bcproduct_features {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.zfa4bcproduct_features span {
    color: #4CAF50;
    font-size: 0.9rem;
}

/* 数据统计样式 */
.zfa4bcstats_section {
    padding: 60px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.zfa4bcstats_grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
}

.zfa4bcstat_card {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.zfa4bcstat_card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.zfa4bcstat_icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.zfa4bcstat_number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #4CAF50;
}

.zfa4bcstat_label {
    font-size: 1rem;
    opacity: 0.9;
}

/* 平台特色样式 */
.zfa4bcfeatures {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.zfa4bcfeatures_grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.zfa4bcfeature_card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    text-align: center;
}

.zfa4bcfeature_card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.zfa4bcfeature_icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.zfa4bcfeature_card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.zfa4bcfeature_card p {
    color: #666;
    line-height: 1.6;
}

/* 关于我们样式 */
.zfa4bcabout {
    padding: 80px 0;
    background: white;
}

.zfa4bcabout_content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.zfa4bcabout_text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.zfa4bcabout_text p {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.zfa4bcstats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.zfa4bcstat_item {
    text-align: center;
}

.zfa4bcstat_number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.zfa4bcstat_label {
    color: #666;
    font-size: 0.9rem;
}

.zfa4bcabout_img {
    width: 100%;
    height: auto;
    max-width: 500px;
    border-radius: 20px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.zfa4bcabout_img:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

/* 价格方案样式 */
.zfa4bcpricing {
    padding: 80px 0;
    background: white;
}

.zfa4bcpricing_grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.zfa4bcpricing_card {
    background: white;
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 2px solid transparent;
    position: relative;
}

.zfa4bcpricing_card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.zfa4bcpopular {
    border-color: #667eea;
    transform: scale(1.05);
}

.zfa4bcpopular_badge {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.zfa4bcpricing_header {
    text-align: center;
    margin-bottom: 2rem;
}

.zfa4bcpricing_header h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.zfa4bcprice {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.5rem;
}

.zfa4bccurrency {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: 600;
}

.zfa4bcamount {
    font-size: 3rem;
    font-weight: 700;
    color: #667eea;
}

.zfa4bcperiod {
    font-size: 1rem;
    color: #666;
}

.zfa4bcpricing_features ul {
    list-style: none;
    margin-bottom: 2rem;
}

.zfa4bcpricing_features li {
    padding: 0.5rem 0;
    color: #666;
    border-bottom: 1px solid #f0f0f0;
}

.zfa4bcpricing_features li:last-child {
    border-bottom: none;
}

/* 服务流程样式 */
.zfa4bcprocess {
    padding: 80px 0;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.zfa4bcprocess_steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 2rem;
    margin-top: 3rem;
}

.zfa4bcprocess_step {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    text-align: center;
    flex: 1;
    min-width: 200px;
    position: relative;
}

.zfa4bcstep_number {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9rem;
}

.zfa4bcstep_icon {
    font-size: 3rem;
    margin: 1rem 0;
}

.zfa4bcprocess_step h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.zfa4bcprocess_step p {
    color: #666;
    line-height: 1.6;
}

.zfa4bcprocess_arrow {
    font-size: 2rem;
    color: #667eea;
    font-weight: bold;
}

/* 常见问题样式 */
.zfa4bcfaq {
    padding: 80px 0;
    background: white;
}

.zfa4bcfaq_list {
    max-width: 800px;
    margin: 3rem auto 0;
}

.zfa4bcfaq_item {
    background: white;
    border-radius: 15px;
    margin-bottom: 1rem;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: all 0.3s ease;
}

.zfa4bcfaq_item:hover {
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.zfa4bcfaq_question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f8f9fa;
    transition: background 0.3s ease;
}

.zfa4bcfaq_question:hover {
    background: #e9ecef;
}

.zfa4bcfaq_question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    margin: 0;
}

.zfa4bcfaq_toggle {
    font-size: 1.5rem;
    color: #667eea;
    font-weight: bold;
    transition: transform 0.3s ease;
}

.zfa4bcfaq_item.active .zfa4bcfaq_toggle {
    transform: rotate(45deg);
}

.zfa4bcfaq_answer {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.zfa4bcfaq_item.active .zfa4bcfaq_answer {
    padding: 1.5rem;
    max-height: 200px;
}

.zfa4bcfaq_answer p {
    color: #666;
    line-height: 1.6;
    margin: 0;
}

/* 客户评价样式 */
.zfa4bctestimonials {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.zfa4bctestimonials_grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.zfa4bctestimonial_card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.zfa4bctestimonial_card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.zfa4bctestimonial_content {
    margin-bottom: 1.5rem;
}

.zfa4bctestimonial_content p {
    font-style: italic;
    line-height: 1.6;
    font-size: 1.1rem;
}

.zfa4bctestimonial_author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.zfa4bcauthor_avatar {
    width: 50px;
    height: 50px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.zfa4bcauthor_info {
    flex: 1;
}

.zfa4bcauthor_info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.zfa4bcauthor_info span {
    font-size: 0.9rem;
    opacity: 0.8;
}

.zfa4bcrating {
    font-size: 1.2rem;
}

/* 联系方式样式 */
.zfa4bccontact {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.zfa4bccontact_content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.zfa4bccontact_info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.zfa4bccontact_item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.zfa4bccontact_icon {
    font-size: 2rem;
}

.zfa4bccontact_text h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.zfa4bccontact_text p {
    opacity: 0.8;
}

.zfa4bcform {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.zfa4bcform_group {
    margin-bottom: 1.5rem;
}

.zfa4bcform_group input,
.zfa4bcform_group textarea,
.zfa4bcform_group select {
    width: 100%;
    padding: 12px 16px;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.zfa4bcform_group select {
    cursor: pointer;
}

.zfa4bccontact_detail {
    font-weight: 600;
    color: #4CAF50;
    margin-top: 0.5rem;
}

.zfa4bcform_group input:focus,
.zfa4bcform_group textarea:focus {
    outline: none;
    background: white;
    box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.zfa4bcform_group textarea {
    resize: vertical;
    min-height: 100px;
}

/* 页脚样式 */
.zfa4bcfooter {
    background: #2c3e50;
    color: white;
    padding: 60px 0 20px;
}

.zfa4bcfooter_content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.zfa4bcfooter_section h3,
.zfa4bcfooter_section h4 {
    margin-bottom: 1rem;
    color: #ecf0f1;
}

.zfa4bcfooter_section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.zfa4bcfooter_section ul {
    list-style: none;
}

.zfa4bcfooter_section ul li {
    color: #bdc3c7;
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.zfa4bcfooter_section ul li:hover {
    color: #ecf0f1;
}

.zfa4bcfooter_bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .zfa4bcnav_menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 1rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    }

    .zfa4bcnav_menu.active {
        display: flex;
    }

    .zfa4bcmobile_menu {
        display: flex;
    }

    .zfa4bcmobile_menu.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .zfa4bcmobile_menu.active span:nth-child(2) {
        opacity: 0;
    }

    .zfa4bcmobile_menu.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }

    .zfa4bchero_container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
        padding: 0 1rem;
    }

    .zfa4bchero_title {
        font-size: 2rem;
        line-height: 1.3;
    }

    .zfa4bchero_subtitle {
        font-size: 1rem;
    }

    .zfa4bchero_features {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .zfa4bchero_buttons {
        justify-content: center;
        flex-wrap: wrap;
        gap: 1rem;
    }

    .zfa4bcbtn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .zfa4bchero_img {
        max-width: 280px;
    }

    .zfa4bcabout_content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .zfa4bcabout_img {
        max-width: 100%;
    }

    .zfa4bccontact_content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .zfa4bcstats {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .zfa4bcsection_title {
        font-size: 1.8rem;
    }

    .zfa4bcsection_subtitle {
        font-size: 1rem;
    }

    .zfa4bcproducts_grid,
    .zfa4bcfeatures_grid,
    .zfa4bcpricing_grid,
    .zfa4bctestimonials_grid,
    .zfa4bcstats_grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .zfa4bcproduct_card,
    .zfa4bcfeature_card,
    .zfa4bcpricing_card,
    .zfa4bctestimonial_card {
        padding: 1.5rem;
    }

    .zfa4bcprocess_steps {
        flex-direction: column;
        gap: 1rem;
    }

    .zfa4bcprocess_step {
        padding: 1.5rem;
        min-width: auto;
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    .zfa4bcprocess_arrow {
        transform: rotate(90deg);
        margin: 0.5rem 0;
    }

    .zfa4bcfaq_question {
        padding: 1rem;
    }

    .zfa4bcfaq_question h3 {
        font-size: 1rem;
    }

    .zfa4bccontact_item {
        padding: 1rem;
    }

    .zfa4bcform {
        padding: 1.5rem;
    }

    .zfa4bcstat_card {
        padding: 1.5rem;
    }

    .zfa4bcstat_number {
        font-size: 2rem;
    }

    .zfa4bcstat_icon {
        font-size: 2.5rem;
    }
}

/* 平板设备优化 */
@media (max-width: 1024px) and (min-width: 769px) {
    .zfa4bchero_container {
        gap: 3rem;
        padding: 0 1.5rem;
    }

    .zfa4bchero_title {
        font-size: 2.5rem;
    }

    .zfa4bchero_img {
        max-width: 350px;
    }

    .zfa4bcproducts_grid,
    .zfa4bcfeatures_grid,
    .zfa4bcpricing_grid,
    .zfa4bctestimonials_grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .zfa4bcstats_grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .zfa4bcprocess_steps {
        gap: 1.5rem;
    }

    .zfa4bcprocess_step {
        min-width: 180px;
    }
}

@media (max-width: 480px) {
    .zfa4bccontainer {
        padding: 0 15px;
    }

    .zfa4bcnav_container {
        padding: 1rem;
    }

    .zfa4bclogo h1 {
        font-size: 1.3rem;
    }

    .zfa4bchero {
        padding: 80px 0 50px;
    }

    .zfa4bchero_title {
        font-size: 1.6rem;
        line-height: 1.2;
    }

    .zfa4bchero_subtitle {
        font-size: 0.9rem;
    }

    .zfa4bchero_features {
        gap: 0.8rem;
    }

    .zfa4bchero_buttons {
        gap: 0.8rem;
    }

    .zfa4bcbtn {
        padding: 8px 16px;
        font-size: 0.85rem;
    }

    .zfa4bchero_img {
        max-width: 250px;
    }

    .zfa4bcproducts,
    .zfa4bcfeatures,
    .zfa4bcabout,
    .zfa4bccontact,
    .zfa4bcpricing,
    .zfa4bcprocess,
    .zfa4bcfaq,
    .zfa4bctestimonials,
    .zfa4bcstats_section {
        padding: 50px 0;
    }

    .zfa4bcsection_title {
        font-size: 1.6rem;
    }

    .zfa4bcsection_subtitle {
        font-size: 0.9rem;
    }

    .zfa4bcproducts_grid,
    .zfa4bcfeatures_grid,
    .zfa4bcpricing_grid,
    .zfa4bctestimonials_grid,
    .zfa4bcstats_grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .zfa4bcproduct_card,
    .zfa4bcfeature_card,
    .zfa4bcpricing_card,
    .zfa4bctestimonial_card,
    .zfa4bcstat_card {
        padding: 1.2rem;
    }

    .zfa4bcproduct_card h3,
    .zfa4bcfeature_card h3,
    .zfa4bcpricing_header h3 {
        font-size: 1.2rem;
    }

    .zfa4bcproduct_card p,
    .zfa4bcfeature_card p {
        font-size: 0.9rem;
    }

    .zfa4bcprocess_steps {
        flex-direction: column;
        gap: 0.8rem;
    }

    .zfa4bcprocess_step {
        padding: 1.2rem;
        width: 100%;
        max-width: 350px;
        margin: 0 auto;
    }

    .zfa4bcprocess_step h3 {
        font-size: 1.1rem;
    }

    .zfa4bcprocess_step p {
        font-size: 0.9rem;
    }

    .zfa4bcprocess_arrow {
        transform: rotate(90deg);
        margin: 0.3rem 0;
        font-size: 1.5rem;
    }

    .zfa4bcfaq_question {
        padding: 0.8rem;
    }

    .zfa4bcfaq_question h3 {
        font-size: 0.95rem;
    }

    .zfa4bcfaq_answer {
        padding: 0.8rem;
    }

    .zfa4bcfaq_answer p {
        font-size: 0.9rem;
    }

    .zfa4bccontact_item {
        padding: 0.8rem;
    }

    .zfa4bccontact_text h3 {
        font-size: 1.1rem;
    }

    .zfa4bccontact_text p {
        font-size: 0.9rem;
    }

    .zfa4bcform {
        padding: 1.2rem;
    }

    .zfa4bcform_group input,
    .zfa4bcform_group textarea,
    .zfa4bcform_group select {
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .zfa4bcstat_number {
        font-size: 1.8rem;
    }

    .zfa4bcstat_icon {
        font-size: 2rem;
    }

    .zfa4bcstat_label {
        font-size: 0.9rem;
    }

    .zfa4bcabout_text h2 {
        font-size: 1.8rem;
    }

    .zfa4bcabout_text p {
        font-size: 0.9rem;
    }

    .zfa4bcprice .zfa4bcamount {
        font-size: 2.5rem;
    }

    .zfa4bcprice .zfa4bccurrency {
        font-size: 1.2rem;
    }

    .zfa4bctestimonial_content p {
        font-size: 1rem;
    }

    .zfa4bcauthor_info h4 {
        font-size: 1rem;
    }

    .zfa4bcauthor_info span {
        font-size: 0.8rem;
    }
}

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

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

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

.zfa4bchero_content {
    animation: fadeInLeft 1s ease-out;
}

.zfa4bchero_visual {
    animation: fadeInRight 1s ease-out;
}

.zfa4bcproduct_card,
.zfa4bcfeature_card {
    animation: fadeInUp 0.6s ease-out;
}

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

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

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #5a6fd8, #6a4190);
}

/* 选择文本样式 */
::selection {
    background: rgba(102, 126, 234, 0.3);
    color: #333;
}

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

/* 加载动画 */
.zfa4bcloading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}