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

:root {
    --zb4c52primary-color: #4a90e2;
    --zb4c52secondary-color: #2c3e50;
    --zb4c52accent-color: #e74c3c;
    --zb4c52text-color: #333;
    --zb4c52text-light: #666;
    --zb4c52bg-light: #f8f9fa;
    --zb4c52bg-dark: #1a1a2e;
    --zb4c52white: #ffffff;
    --zb4c52shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --zb4c52shadow-hover: 0 8px 30px rgba(0, 0, 0, 0.15);
    --zb4c52gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --zb4c52gradient-alt: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Microsoft YaHei', '微软雅黑', Arial, sans-serif;
    line-height: 1.6;
    color: var(--zb4c52text-color);
    overflow-x: hidden;
}

/* 确保所有图片响应式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

.zb4c52container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

/* 导航栏样式 */
.zb4c52navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.zb4c52navbar.zb4c52scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.zb4c52nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.zb4c52logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--zb4c52primary-color);
    background: var(--zb4c52gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.zb4c52nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.zb4c52nav-link {
    text-decoration: none;
    color: var(--zb4c52text-color);
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

.zb4c52nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--zb4c52primary-color);
    transition: width 0.3s ease;
}

.zb4c52nav-link:hover {
    color: var(--zb4c52primary-color);
}

.zb4c52nav-link:hover::after {
    width: 100%;
}

.zb4c52mobile-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.zb4c52bar {
    width: 25px;
    height: 3px;
    background: var(--zb4c52text-color);
    transition: all 0.3s ease;
    border-radius: 3px;
}

/* 主横幅样式 */
.zb4c52hero {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--zb4c52gradient);
    color: var(--zb4c52white);
    padding-top: 80px;
    padding-bottom: 4rem;
    overflow: hidden;
}

.zb4c52hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.5;
}

.zb4c52hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
}

.zb4c52hero-wrapper {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    width: 100%;
    padding: 2rem 0;
}

.zb4c52hero-content {
    position: relative;
    z-index: 2;
    text-align: left;
    padding: 2rem;
    animation: fadeInUp 1s ease;
}

.zb4c52hero-image {
    position: relative;
    z-index: 2;
    animation: fadeInRight 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.zb4c52hero-image img {
    max-width: 100%;
    width: 100%;
    height: auto;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    object-fit: contain;
}

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

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

.zb4c52hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
    line-height: 1.2;
}

.zb4c52hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.zb4c52hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: flex-start;
    flex-wrap: wrap;
    margin-top: 2rem;
}

.zb4c52btn {
    padding: 1rem 2.5rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.zb4c52btn-primary {
    background: var(--zb4c52white);
    color: var(--zb4c52primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.zb4c52btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.zb4c52btn-secondary {
    background: transparent;
    color: var(--zb4c52white);
    border: 2px solid var(--zb4c52white);
}

.zb4c52btn-secondary:hover {
    background: var(--zb4c52white);
    color: var(--zb4c52primary-color);
    transform: translateY(-3px);
}

.zb4c52wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    color: var(--zb4c52white);
    height: 120px;
    overflow: hidden;
}

.zb4c52wave svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* 区块标题样式 */
.zb4c52section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.zb4c52section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--zb4c52secondary-color);
    position: relative;
    display: inline-block;
}

.zb4c52section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: var(--zb4c52gradient);
    border-radius: 2px;
}

.zb4c52section-description {
    font-size: 1.1rem;
    color: var(--zb4c52text-light);
    max-width: 600px;
    margin: 1.5rem auto 0;
}

/* 服务板块样式 */
.zb4c52services {
    padding: 6rem 0;
    background: var(--zb4c52bg-light);
}

.zb4c52service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.zb4c52service-card {
    background: var(--zb4c52white);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: var(--zb4c52shadow);
    position: relative;
    overflow: hidden;
}

.zb4c52service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--zb4c52gradient);
    opacity: 0.05;
    transition: left 0.5s ease;
}

.zb4c52service-card:hover::before {
    left: 0;
}

.zb4c52service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--zb4c52shadow-hover);
}

.zb4c52service-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    display: block;
}

.zb4c52service-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52service-text {
    color: var(--zb4c52text-light);
    line-height: 1.8;
}

/* 优势板块样式 */
.zb4c52advantages {
    padding: 6rem 0;
    background: var(--zb4c52white);
}

.zb4c52advantage-content {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 4rem;
    align-items: center;
}

.zb4c52advantage-item {
    display: flex;
    gap: 2rem;
    margin-bottom: 3rem;
    align-items: flex-start;
}

.zb4c52advantage-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--zb4c52primary-color);
    opacity: 0.2;
    min-width: 80px;
    line-height: 1;
}

.zb4c52advantage-text h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52advantage-text p {
    color: var(--zb4c52text-light);
    line-height: 1.8;
}

.zb4c52feature-box {
    background: var(--zb4c52gradient);
    padding: 3rem;
    border-radius: 20px;
    color: var(--zb4c52white);
    box-shadow: var(--zb4c52shadow-hover);
}

.zb4c52feature-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.zb4c52feature-item:last-child {
    border-bottom: none;
}

.zb4c52feature-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

.zb4c52feature-value {
    font-size: 1.5rem;
    font-weight: 700;
}

/* 统计数据样式 */
.zb4c52stats {
    padding: 5rem 0;
    background: var(--zb4c52gradient);
    color: var(--zb4c52white);
    position: relative;
    overflow: hidden;
}

.zb4c52stats::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><circle cx="30" cy="30" r="2" fill="rgba(255,255,255,0.1)"/></svg>');
    opacity: 0.3;
}

.zb4c52stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    position: relative;
    z-index: 1;
}

.zb4c52stat-item {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.zb4c52stat-item:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.zb4c52stat-number {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    display: block;
    text-shadow: 2px 2px 10px rgba(0, 0, 0, 0.2);
}

.zb4c52stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
}

/* 价格参考样式 */
.zb4c52pricing {
    padding: 6rem 0;
    background: var(--zb4c52white);
}

.zb4c52price-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.zb4c52price-card {
    background: var(--zb4c52bg-light);
    padding: 2.5rem;
    border-radius: 15px;
    border-top: 4px solid var(--zb4c52primary-color);
    transition: all 0.3s ease;
    box-shadow: var(--zb4c52shadow);
}

.zb4c52price-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--zb4c52shadow-hover);
}

.zb4c52price-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52price-list {
    list-style: none;
}

.zb4c52price-list li {
    padding: 0.8rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--zb4c52text-light);
    line-height: 1.8;
}

.zb4c52price-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--zb4c52primary-color);
    font-weight: 700;
    font-size: 1.2rem;
}

.zb4c52price-note {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 2rem;
    border-radius: 10px;
    border-left: 4px solid var(--zb4c52accent-color);
}

.zb4c52price-note p {
    margin: 0;
    color: var(--zb4c52text-color);
    line-height: 1.8;
}

/* 流程板块样式 */
.zb4c52process {
    padding: 6rem 0;
    background: var(--zb4c52bg-light);
}

.zb4c52process-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.zb4c52step-item {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
}

.zb4c52step-number {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--zb4c52gradient);
    color: var(--zb4c52white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
}

.zb4c52step-item:hover .zb4c52step-number {
    transform: scale(1.1) rotate(5deg);
}

.zb4c52step-content h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52step-content p {
    color: var(--zb4c52text-light);
    line-height: 1.6;
}

.zb4c52step-arrow {
    font-size: 2rem;
    color: var(--zb4c52primary-color);
    font-weight: 700;
}

/* 联系方式板块样式 */
.zb4c52contact {
    padding: 6rem 0;
    background: var(--zb4c52white);
}

.zb4c52contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
}

.zb4c52contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.zb4c52contact-item {
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    padding: 2rem;
    background: var(--zb4c52bg-light);
    border-radius: 15px;
    transition: all 0.3s ease;
}

.zb4c52contact-item:hover {
    transform: translateX(10px);
    box-shadow: var(--zb4c52shadow);
}

.zb4c52contact-icon {
    font-size: 2.5rem;
    min-width: 60px;
}

.zb4c52contact-details h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52contact-details p {
    color: var(--zb4c52text-light);
}

.zb4c52contact-form-wrapper {
    background: var(--zb4c52bg-light);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--zb4c52shadow);
}

.zb4c52contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.zb4c52form-group {
    position: relative;
}

.zb4c52form-input,
.zb4c52form-textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--zb4c52white);
}

.zb4c52form-input:focus,
.zb4c52form-textarea:focus {
    outline: none;
    border-color: var(--zb4c52primary-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.zb4c52form-textarea {
    resize: vertical;
    min-height: 120px;
}

.zb4c52btn-submit {
    background: var(--zb4c52gradient);
    color: var(--zb4c52white);
    border: none;
    padding: 1.2rem;
    font-size: 1.1rem;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.zb4c52btn-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

/* 页脚样式 */
.zb4c52footer {
    background: var(--zb4c52bg-dark);
    color: var(--zb4c52white);
    padding: 4rem 0 2rem;
}

.zb4c52footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.zb4c52footer-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--zb4c52white);
}

.zb4c52footer-text {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
}

.zb4c52footer-links {
    list-style: none;
}

.zb4c52footer-links li {
    margin-bottom: 0.8rem;
}

.zb4c52footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.3s ease;
}

.zb4c52footer-links a:hover {
    color: var(--zb4c52white);
}

.zb4c52footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

/* 响应式设计 */
/* 中等屏幕 - 平板横屏 */
@media (max-width: 992px) and (min-width: 769px) {
    .zb4c52hero-wrapper {
        gap: 2rem;
    }

    .zb4c52hero-title {
        font-size: 3rem;
    }

    .zb4c52service-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .zb4c52advantage-content {
        gap: 2rem;
    }

    .zb4c52container {
        padding: 0 30px;
    }
}

@media (max-width: 768px) {
    .zb4c52nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: var(--zb4c52white);
        width: 100%;
        text-align: center;
        transition: left 0.3s ease;
        box-shadow: var(--zb4c52shadow);
        padding: 2rem 0;
        gap: 0;
    }

    .zb4c52nav-menu.zb4c52active {
        left: 0;
    }

    .zb4c52nav-item {
        padding: 1rem 0;
    }

    .zb4c52mobile-toggle {
        display: flex;
    }

    .zb4c52mobile-toggle.zb4c52active .zb4c52bar:nth-child(1) {
        transform: rotate(45deg) translate(8px, 8px);
    }

    .zb4c52mobile-toggle.zb4c52active .zb4c52bar:nth-child(2) {
        opacity: 0;
    }

    .zb4c52mobile-toggle.zb4c52active .zb4c52bar:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -7px);
    }

    .zb4c52container {
        padding: 0 15px;
    }

    .zb4c52hero-wrapper {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
        padding: 1.5rem 0;
    }

    .zb4c52hero-content {
        text-align: center;
        padding: 1.5rem;
        order: -1;
    }

    .zb4c52hero-buttons {
        justify-content: center;
    }

    .zb4c52hero-image {
        max-width: 100%;
    }

    .zb4c52hero-title {
        font-size: 2.5rem;
    }

    .zb4c52hero-subtitle {
        font-size: 1.1rem;
    }

    .zb4c52section-title {
        font-size: 2rem;
    }

    .zb4c52section-description {
        font-size: 1rem;
        padding: 0 1rem;
    }

    .zb4c52section-header {
        margin-bottom: 3rem;
    }

    .zb4c52advantage-content {
        grid-template-columns: 1fr;
    }

    .zb4c52step-arrow {
        display: none;
    }

    .zb4c52process-steps {
        flex-direction: column;
    }

    .zb4c52contact-content {
        grid-template-columns: 1fr;
    }

    .zb4c52service-grid {
        grid-template-columns: 1fr;
    }

    .zb4c52hero-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .zb4c52btn {
        width: 100%;
        text-align: center;
    }

    .zb4c52stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .zb4c52stat-number {
        font-size: 2.5rem;
    }

    .zb4c52price-info {
        grid-template-columns: 1fr;
    }

    .zb4c52guarantee-grid {
        grid-template-columns: 1fr;
    }

    .zb4c52cases-grid {
        grid-template-columns: 1fr;
    }

    .zb4c52credentials-content {
        grid-template-columns: repeat(2, 1fr);
    }

    .zb4c52advantage-item {
        gap: 1.5rem;
        margin-bottom: 2rem;
    }

    .zb4c52advantage-number {
        font-size: 2.5rem;
        min-width: 60px;
    }

    .zb4c52step-item {
        min-width: auto;
    }

    .zb4c52step-number {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .zb4c52container {
        padding: 0 15px;
    }

    .zb4c52hero {
        min-height: auto;
        padding-top: 70px;
        padding-bottom: 2rem;
    }

    .zb4c52hero-wrapper {
        padding: 1rem 0;
        gap: 1.5rem;
    }

    .zb4c52hero-content {
        padding: 1rem;
    }

    .zb4c52hero-title {
        font-size: 2rem;
        line-height: 1.3;
    }

    .zb4c52hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }

    .zb4c52section-title {
        font-size: 1.8rem;
    }

    .zb4c52section-description {
        font-size: 0.95rem;
    }

    .zb4c52section-header {
        margin-bottom: 2.5rem;
    }

    .zb4c52service-card,
    .zb4c52contact-form-wrapper {
        padding: 1.5rem;
    }

    .zb4c52feature-box {
        padding: 2rem;
    }

    .zb4c52stats-grid {
        grid-template-columns: 1fr;
    }

    .zb4c52stat-number {
        font-size: 2rem;
    }

    .zb4c52credentials-content {
        grid-template-columns: 1fr;
    }

    .zb4c52faq-question {
        padding: 1rem 1.5rem;
    }

    .zb4c52faq-answer {
        padding: 0 1.5rem;
    }

    .zb4c52faq-item.zb4c52active .zb4c52faq-answer {
        padding: 1rem 1.5rem;
    }

    .zb4c52advantage-number {
        font-size: 2rem;
        min-width: 50px;
    }

    .zb4c52advantage-text h3 {
        font-size: 1.2rem;
    }

    .zb4c52advantage-text p {
        font-size: 0.9rem;
    }

    .zb4c52service-card,
    .zb4c52guarantee-item,
    .zb4c52case-card,
    .zb4c52credential-item {
        padding: 1.5rem;
    }

    .zb4c52service-title,
    .zb4c52guarantee-item h3,
    .zb4c52case-info h3 {
        font-size: 1.2rem;
    }

    .zb4c52price-card {
        padding: 2rem 1.5rem;
    }

    .zb4c52contact-item {
        padding: 1.5rem;
    }

    .zb4c52contact-form-wrapper {
        padding: 2rem 1.5rem;
    }

    .zb4c52logo {
        font-size: 1.2rem;
    }
}

/* 动画效果 */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.zb4c52service-card:hover .zb4c52service-icon {
    animation: float 2s ease-in-out infinite;
}

/* 美化元素 */
.zb4c52services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(to bottom, var(--zb4c52white), transparent);
    pointer-events: none;
}

.zb4c52advantages::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml,<svg width="60" height="60" xmlns="http://www.w3.org/2000/svg"><circle cx="30" cy="30" r="1.5" fill="%23e0e0e0" opacity="0.5"/></svg>');
    opacity: 0.3;
    pointer-events: none;
}

.zb4c52advantages {
    position: relative;
    overflow: hidden;
}

/* 服务保障样式 */
.zb4c52guarantee {
    padding: 6rem 0;
    background: var(--zb4c52white);
}

.zb4c52guarantee-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.zb4c52guarantee-item {
    text-align: center;
    padding: 2.5rem;
    background: var(--zb4c52bg-light);
    border-radius: 15px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.zb4c52guarantee-item:hover {
    transform: translateY(-10px);
    border-color: var(--zb4c52primary-color);
    box-shadow: var(--zb4c52shadow-hover);
}

.zb4c52guarantee-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    display: block;
}

.zb4c52guarantee-item h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52guarantee-item p {
    color: var(--zb4c52text-light);
    line-height: 1.8;
}

/* 客户案例样式 */
.zb4c52cases {
    padding: 6rem 0;
    background: var(--zb4c52bg-light);
}

.zb4c52cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.zb4c52case-card {
    background: var(--zb4c52white);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: var(--zb4c52shadow);
    transition: all 0.3s ease;
}

.zb4c52case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--zb4c52shadow-hover);
}

.zb4c52case-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid #e0e0e0;
}

.zb4c52case-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--zb4c52gradient);
    color: var(--zb4c52white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.zb4c52case-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52case-info p {
    font-size: 0.9rem;
    color: var(--zb4c52text-light);
    margin: 0;
}

.zb4c52case-content {
    margin-bottom: 1.5rem;
}

.zb4c52case-content p {
    color: var(--zb4c52text-color);
    line-height: 1.8;
    font-style: italic;
}

.zb4c52case-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
}

.zb4c52case-date {
    color: var(--zb4c52text-light);
}

.zb4c52case-rating {
    color: #ffc107;
    font-size: 1rem;
}

/* FAQ样式 */
.zb4c52faq {
    padding: 6rem 0;
    background: var(--zb4c52white);
}

.zb4c52faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.zb4c52faq-item {
    background: var(--zb4c52bg-light);
    border-radius: 10px;
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.zb4c52faq-item:hover {
    box-shadow: var(--zb4c52shadow);
}

.zb4c52faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.3s ease;
}

.zb4c52faq-question:hover {
    background: rgba(74, 144, 226, 0.05);
}

.zb4c52faq-question h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--zb4c52secondary-color);
    margin: 0;
    flex: 1;
}

.zb4c52faq-toggle {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--zb4c52primary-color);
    transition: transform 0.3s ease;
    min-width: 30px;
    text-align: center;
}

.zb4c52faq-item.zb4c52active .zb4c52faq-toggle {
    transform: rotate(45deg);
}

.zb4c52faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 2rem;
}

.zb4c52faq-item.zb4c52active .zb4c52faq-answer {
    max-height: 500px;
    padding: 1.5rem 2rem;
}

.zb4c52faq-answer p {
    color: var(--zb4c52text-light);
    line-height: 1.8;
    margin: 0;
}

/* 资质信誉样式 */
.zb4c52credentials {
    padding: 6rem 0;
    background: var(--zb4c52bg-light);
}

.zb4c52credentials-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.zb4c52credential-item {
    text-align: center;
    padding: 2.5rem 2rem;
    background: var(--zb4c52white);
    border-radius: 15px;
    transition: all 0.3s ease;
    box-shadow: var(--zb4c52shadow);
    border-top: 3px solid var(--zb4c52primary-color);
}

.zb4c52credential-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--zb4c52shadow-hover);
}

.zb4c52credential-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.zb4c52credential-item h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
    color: var(--zb4c52secondary-color);
}

.zb4c52credential-item p {
    color: var(--zb4c52text-light);
    line-height: 1.6;
    font-size: 0.95rem;
}