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

body {
    font-family: "Microsoft YaHei", "微软雅黑", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
}

.z870e4container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部样式 */
.z870e4header {
    background-color: #fff;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.z870e4header .z870e4container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    position: relative;
    padding: 0 20px;
}

.z870e4logo {
    font-size: 24px;
    color: #1a73e8;
    font-weight: bold;
}

.z870e4menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
    padding: 0;
    background: none;
    border: none;
}

.z870e4menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: #333;
    border-radius: 3px;
    transition: all 0.3s ease;
}

.z870e4menu-toggle.z870e4active span:nth-child(1) {
    transform: translateY(9px) rotate(45deg);
}

.z870e4menu-toggle.z870e4active span:nth-child(2) {
    opacity: 0;
}

.z870e4menu-toggle.z870e4active span:nth-child(3) {
    transform: translateY(-9px) rotate(-45deg);
}

.z870e4nav {
    display: flex;
    align-items: center;
}

.z870e4nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.z870e4nav ul li {
    margin-left: 30px;
}

.z870e4nav ul li a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 16px;
    display: block;
    padding: 5px 0;
}

.z870e4nav ul li a:hover {
    color: #1a73e8;
}

/* 响应式导航样式 */
@media (max-width: 1200px) {
    .z870e4container {
        max-width: 960px;
        padding: 0 15px;
    }

    .z870e4hero {
        padding: 140px 0 80px;
    }

    .z870e4hero-content h2 {
        font-size: 42px;
    }

    .z870e4hero-content p {
        font-size: 20px;
    }

    .z870e4service-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z870e4advantages-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    .z870e4container {
        max-width: 720px;
    }

    /* 导航栏 */
    .z870e4header .z870e4container {
        height: 70px;
    }

    .z870e4logo {
        font-size: 22px;
    }

    .z870e4menu-toggle {
        display: flex;
    }

    .z870e4nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: #fff;
        box-shadow: -2px 0 5px rgba(0,0,0,0.1);
        transition: all 0.3s ease;
        z-index: 1000;
        overflow-y: auto;
        padding-top: 70px;
    }

    .z870e4nav.z870e4active {
        right: 0;
    }

    .z870e4nav ul {
        flex-direction: column;
        padding: 0;
    }

    .z870e4nav ul li {
        margin: 0;
        border-bottom: 1px solid #eee;
    }

    .z870e4nav ul li:last-child {
        border-bottom: none;
    }

    .z870e4nav ul li a {
        padding: 15px 20px;
        font-size: 16px;
    }

    /* 英雄区域 */
    .z870e4hero {
        padding: 120px 0 60px;
    }

    .z870e4hero-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .z870e4hero-content {
        text-align: center;
        max-width: 600px;
        margin: 0 auto;
    }

    .z870e4hero-content h2 {
        font-size: 36px;
    }

    .z870e4hero-content p {
        font-size: 18px;
        margin-bottom: 30px;
    }

    .z870e4hero-features {
        justify-content: center;
        gap: 30px;
    }

    .z870e4hero-image {
        min-height: 300px;
        max-width: 500px;
        margin: 0 auto;
    }

    /* 服务区域 */
    .z870e4service-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z870e4advantages-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 流程区域 */
    .z870e4process-wrapper {
        grid-template-columns: 1fr;
    }

    .z870e4process-steps {
        grid-template-columns: 1fr;
    }

    /* 特点区域 */
    .z870e4features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* FAQ区域 */
    .z870e4faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* 联系区域 */
    .z870e4contact-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .z870e4contact-features {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* 基础容器 */
    .z870e4container {
        width: 100%;
        padding: 0 15px;
        overflow-x: hidden;
    }

    /* 导航栏 */
    .z870e4header {
        position: fixed;
        width: 100%;
        top: 0;
        left: 0;
        z-index: 1000;
    }

    .z870e4header .z870e4container {
        height: 50px;
        padding: 0 15px;
    }

    .z870e4nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 300px;
        height: 100vh;
        background: #fff;
        padding: 60px 20px 20px;
        transition: right 0.3s ease;
        overflow-y: auto;
        z-index: 999;
    }

    .z870e4nav.z870e4active {
        right: 0;
    }

    .z870e4nav ul {
        flex-direction: column;
        padding: 0;
    }

    .z870e4nav ul li {
        margin: 0;
        width: 100%;
    }

    .z870e4nav ul li a {
        display: block;
        padding: 12px 15px;
        border-bottom: 1px solid #eee;
    }

    /* 英雄区域 */
    .z870e4hero {
        padding: 70px 0 40px;
        margin-top: 50px;
    }

    .z870e4hero-wrapper {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .z870e4hero-content {
        width: 100%;
        text-align: center;
    }

    .z870e4hero-features {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    .z870e4hero-feature-item {
        width: 100%;
        max-width: 300px;
    }

    .z870e4hero-image {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }

    /* 服务区域 */
    .z870e4services {
        padding: 40px 0;
    }

    .z870e4service-grid {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .z870e4service-card {
        width: 100%;
        margin: 0;
    }

    /* 流程区域 */
    .z870e4process {
        padding: 40px 0;
    }

    .z870e4process-wrapper {
        display: flex;
        flex-direction: column;
        gap: 30px;
    }

    .z870e4process-steps {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .z870e4process-step {
        width: 100%;
    }

    /* 特点区域 */
    .z870e4features {
        padding: 40px 0;
    }

    .z870e4features-grid {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .z870e4feature-card {
        width: 100%;
    }

    /* FAQ区域 */
    .z870e4faq {
        padding: 40px 0;
    }

    .z870e4faq-grid {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .z870e4faq-card {
        width: 100%;
    }

    /* 联系区域 */
    .z870e4contact {
        padding: 40px 0;
    }

    .z870e4contact-grid {
        display: flex;
        flex-direction: column;
        gap: 20px;
    }

    .z870e4contact-card {
        width: 100%;
    }

    .z870e4contact-form-wrapper {
        width: 100%;
    }

    .z870e4form-group {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }

    /* 页脚 */
    .z870e4footer {
        padding: 30px 0 15px;
    }

    .z870e4footer-wrapper {
        display: flex;
        flex-direction: column;
        gap: 25px;
    }

    .z870e4footer-info,
    .z870e4footer-links,
    .z870e4footer-contact {
        width: 100%;
    }
}

@media (max-width: 480px) {
    /* 基础容器 */
    .z870e4container {
        padding: 0 10px;
    }

    /* 导航栏 */
    .z870e4header .z870e4container {
        height: 45px;
        padding: 0 10px;
    }

    .z870e4nav {
        width: 90%;
        padding: 55px 15px 15px;
    }

    /* 英雄区域 */
    .z870e4hero {
        padding: 60px 0 30px;
        margin-top: 45px;
    }

    .z870e4hero-content h2 {
        font-size: 24px;
    }

    .z870e4hero-content p {
        font-size: 14px;
    }

    .z870e4hero-feature-item {
        max-width: 100%;
    }

    /* 服务区域 */
    .z870e4services {
        padding: 30px 0;
    }

    .z870e4service-card {
        padding: 15px;
    }

    .z870e4service-icon {
        height: 140px;
    }

    /* 流程区域 */
    .z870e4process {
        padding: 30px 0;
    }

    .z870e4process-step {
        padding: 15px;
    }

    /* 特点区域 */
    .z870e4features {
        padding: 30px 0;
    }

    .z870e4feature-card {
        padding: 15px;
    }

    /* FAQ区域 */
    .z870e4faq {
        padding: 30px 0;
    }

    .z870e4faq-card {
        padding: 15px;
    }

    /* 联系区域 */
    .z870e4contact {
        padding: 30px 0;
    }

    .z870e4contact-card {
        padding: 15px;
    }

    .z870e4contact-form-wrapper {
        padding: 15px;
    }

    .z870e4form-group {
        gap: 10px;
    }

    /* 页脚 */
    .z870e4footer {
        padding: 25px 0 12px;
    }

    .z870e4footer-wrapper {
        gap: 20px;
    }
}

/* 防止页面滚动 */
body.z870e4nav-open {
    overflow: hidden;
}

/* 导航遮罩层 */
.z870e4nav-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

.z870e4nav-overlay.z870e4active {
    display: block;
}

/* 英雄区域样式 */
.z870e4hero {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: #fff;
    padding: 160px 0 100px;
    overflow: hidden;
}

.z870e4hero-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.z870e4hero-content {
    text-align: left;
}

.z870e4hero-content h2 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.z870e4hero-content p {
    font-size: 24px;
    margin-bottom: 40px;
    line-height: 1.5;
}

.z870e4hero-features {
    display: flex;
    gap: 60px;
    margin-bottom: 40px;
}

.z870e4hero-feature-item {
    text-align: center;
}

.z870e4feature-number {
    display: block;
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
}

.z870e4feature-text {
    font-size: 18px;
}

.z870e4hero-image {
    position: relative;
    height: 100%;
    min-height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z870e4hero-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* 按钮样式 */
.z870e4btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s;
    margin: 0 10px;
}

.z870e4btn-primary {
    background-color: #fff;
    color: #1a73e8;
}

.z870e4btn-secondary {
    background-color: transparent;
    border: 2px solid #fff;
    color: #fff;
}

.z870e4btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 服务区域样式 */
.z870e4services {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.z870e4section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 20px;
    color: #1a73e8;
    position: relative;
    padding-bottom: 15px;
}

.z870e4section-title:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #1a73e8;
    border-radius: 3px;
}

.z870e4services-intro {
    text-align: center;
    margin-bottom: 50px;
}

.z870e4intro-text {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.6;
}

.z870e4service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.z870e4service-card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    overflow: hidden;
}

.z870e4service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4service-icon {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
}

.z870e4service-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
    padding: 10px;
}

.z870e4service-card:hover .z870e4service-icon img {
    transform: scale(1.05);
}

.z870e4service-overlay {
    position: absolute;
    top: 15px;
    right: 15px;
    z-index: 1;
}

.z870e4service-tag {
    background: rgba(26, 115, 232, 0.9);
    color: #fff;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 500;
}

.z870e4service-content {
    padding: 30px;
}

.z870e4service-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.z870e4service-header h3 {
    color: #1a73e8;
    font-size: 24px;
    margin: 0;
}

.z870e4service-badge {
    background: #e8f0fe;
    color: #1a73e8;
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 14px;
    font-weight: 500;
}

.z870e4service-desc {
    color: #666;
    margin-bottom: 20px;
    font-size: 16px;
    line-height: 1.6;
}

.z870e4service-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin-bottom: 25px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
}

.z870e4detail-item {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.z870e4detail-label {
    color: #666;
    font-size: 14px;
}

.z870e4detail-value {
    color: #1a73e8;
    font-weight: bold;
    font-size: 16px;
}

.z870e4service-features {
    margin-bottom: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
}

.z870e4service-features h4 {
    color: #1a73e8;
    margin-bottom: 12px;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.z870e4service-features h4:before {
    content: "✓";
    color: #1a73e8;
    font-weight: bold;
}

.z870e4service-features ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.z870e4service-features ul li {
    display: flex;
    align-items: center;
    color: #666;
    font-size: 14px;
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.z870e4service-features ul li:before {
    content: "•";
    position: absolute;
    left: 8px;
    color: #1a73e8;
    font-weight: bold;
}

.z870e4service-cta {
    display: flex;
    gap: 15px;
}

.z870e4service-cta .z870e4btn {
    flex: 1;
    text-align: center;
    padding: 12px 20px;
    font-size: 16px;
}

.z870e4btn-outline {
    background: transparent;
    border: 2px solid #1a73e8;
    color: #1a73e8;
}

.z870e4btn-outline:hover {
    background: #1a73e8;
    color: #fff;
}

/* 服务优势样式 */
.z870e4service-advantages {
    margin-top: 60px;
    padding-top: 60px;
    border-top: 1px solid #eee;
}

.z870e4service-advantages h3 {
    text-align: center;
    font-size: 32px;
    color: #333;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 15px;
}

.z870e4service-advantages h3:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: #1a73e8;
    border-radius: 3px;
}

.z870e4advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 60px;
}

.z870e4advantage-item {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.z870e4advantage-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4advantage-icon {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    padding: 25px;
    text-align: center;
    color: #fff;
}

.z870e4advantage-icon .z870e4icon {
    font-size: 36px;
    display: block;
    margin-bottom: 10px;
}

.z870e4advantage-content {
    padding: 25px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.z870e4advantage-content h4 {
    color: #1a73e8;
    font-size: 20px;
    margin-bottom: 12px;
    font-weight: 600;
}

.z870e4advantage-content p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.z870e4advantage-features {
    list-style: none;
    padding: 0;
    margin: 0;
    flex-grow: 1;
}

.z870e4advantage-features li {
    color: #555;
    font-size: 14px;
    padding: 6px 0;
    padding-left: 22px;
    position: relative;
}

.z870e4advantage-features li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

/* 统计数据样式 */
.z870e4advantages-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
    padding: 40px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 15px;
    color: #fff;
}

.z870e4stat-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    transition: transform 0.3s ease;
}

.z870e4stat-item:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.z870e4stat-number {
    font-size: 36px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #fff;
}

.z870e4stat-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
}

/* 贷款流程样式 */
.z870e4process {
    padding: 100px 0;
    background-color: #fff;
}

.z870e4process-intro {
    text-align: center;
    margin-bottom: 50px;
}

.z870e4process-intro .z870e4intro-text {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.z870e4process-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 50px;
    align-items: start;
    margin-bottom: 60px;
}

.z870e4process-steps {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.z870e4process-step {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 25px;
    position: relative;
    transition: all 0.3s ease;
}

.z870e4process-step:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: bold;
    margin-bottom: 20px;
}

.z870e4step-content h3 {
    color: #1a73e8;
    font-size: 20px;
    margin-bottom: 10px;
}

.z870e4step-content p {
    color: #666;
    font-size: 15px;
    margin-bottom: 15px;
}

.z870e4step-details {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z870e4step-details li {
    display: flex;
    align-items: center;
    color: #555;
    font-size: 14px;
    margin-bottom: 10px;
}

.z870e4step-icon {
    margin-right: 10px;
    font-size: 18px;
}

.z870e4process-image {
    position: relative;
    height: 100%;
    min-height: 400px;
    border-radius: 15px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z870e4process-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 15px;
    max-height: 500px;
}

.z870e4process-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(26, 115, 232, 0.9), rgba(13, 71, 161, 0.9));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.z870e4process-image:hover .z870e4process-overlay {
    opacity: 1;
}

.z870e4overlay-content {
    text-align: center;
    color: #fff;
    padding: 30px;
}

.z870e4overlay-content h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.z870e4overlay-content p {
    font-size: 16px;
    margin-bottom: 20px;
}

.z870e4overlay-content .z870e4btn {
    background: #fff;
    color: #1a73e8;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.z870e4overlay-content .z870e4btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

.z870e4process-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.z870e4feature-item {
    text-align: center;
    padding: 25px;
    background: #f8f9fa;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.z870e4feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.z870e4feature-icon {
    font-size: 32px;
    margin-bottom: 15px;
}

.z870e4feature-item h4 {
    color: #1a73e8;
    font-size: 18px;
    margin-bottom: 10px;
}

.z870e4feature-item p {
    color: #666;
    font-size: 14px;
}

/* 特点区域样式 */
.z870e4features {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.z870e4features-intro {
    text-align: center;
    margin-bottom: 50px;
}

.z870e4features-intro .z870e4intro-text {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.z870e4features-wrapper {
    margin-bottom: 60px;
}

.z870e4features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.z870e4feature-card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    overflow: hidden;
}

.z870e4feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4feature-icon {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    padding: 25px;
    text-align: center;
    color: #fff;
}

.z870e4feature-icon .z870e4icon {
    font-size: 36px;
    display: block;
    margin-bottom: 10px;
}

.z870e4feature-content {
    padding: 25px;
}

.z870e4feature-content h3 {
    color: #1a73e8;
    font-size: 20px;
    margin-bottom: 10px;
}

.z870e4feature-content p {
    color: #666;
    font-size: 15px;
    margin-bottom: 20px;
}

.z870e4feature-details {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
}

.z870e4feature-details li {
    display: flex;
    align-items: center;
    color: #555;
    font-size: 14px;
    margin-bottom: 10px;
}

.z870e4detail-icon {
    color: #1a73e8;
    margin-right: 10px;
    font-weight: bold;
}

.z870e4feature-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 10px;
}

.z870e4stat {
    text-align: center;
}

.z870e4stat-number {
    display: block;
    font-size: 24px;
    font-weight: bold;
    color: #1a73e8;
    margin-bottom: 5px;
}

.z870e4stat-label {
    font-size: 14px;
    color: #666;
}

.z870e4features-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
    padding: 40px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 15px;
    color: #fff;
}

.z870e4highlight-item {
    display: flex;
    align-items: center;
    gap: 20px;
}

.z870e4highlight-icon {
    font-size: 32px;
    background: rgba(255, 255, 255, 0.1);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.z870e4highlight-content h4 {
    font-size: 18px;
    margin-bottom: 5px;
}

.z870e4highlight-content p {
    font-size: 14px;
    opacity: 0.9;
}

/* FAQ样式 */
.z870e4faq {
    padding: 100px 0;
    background-color: #fff;
}

.z870e4faq-intro {
    text-align: center;
    margin-bottom: 50px;
}

.z870e4faq-intro .z870e4intro-text {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.z870e4faq-wrapper {
    margin-bottom: 60px;
}

.z870e4faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.z870e4faq-card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    overflow: hidden;
}

.z870e4faq-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4faq-header {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    padding: 20px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 15px;
}

.z870e4faq-icon {
    font-size: 24px;
    background: rgba(255, 255, 255, 0.2);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.z870e4faq-header h3 {
    color: #fff;
    font-size: 18px;
    margin: 0;
    flex: 1;
}

.z870e4faq-content {
    padding: 20px;
}

.z870e4faq-content p {
    color: #666;
    font-size: 15px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.z870e4faq-details {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z870e4faq-details li {
    display: flex;
    align-items: center;
    color: #555;
    font-size: 14px;
    margin-bottom: 10px;
}

.z870e4detail-icon {
    color: #1a73e8;
    margin-right: 10px;
    font-weight: bold;
}

.z870e4faq-contact {
    margin-top: 50px;
}

.z870e4contact-card {
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    border-radius: 15px;
    padding: 30px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 30px;
    text-align: center;
}

.z870e4contact-icon {
    font-size: 36px;
    background: rgba(255, 255, 255, 0.2);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.z870e4contact-content {
    flex: 1;
}

.z870e4contact-content h4 {
    font-size: 24px;
    margin-bottom: 10px;
}

.z870e4contact-content p {
    font-size: 16px;
    margin-bottom: 20px;
    opacity: 0.9;
}

.z870e4contact-content .z870e4btn {
    background: #fff;
    color: #1a73e8;
    padding: 12px 30px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: bold;
    transition: all 0.3s ease;
}

.z870e4contact-content .z870e4btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* 联系区域样式 */
.z870e4contact {
    padding: 100px 0;
    background-color: #f8f9fa;
}

.z870e4contact-intro {
    text-align: center;
    margin-bottom: 50px;
}

.z870e4contact-intro .z870e4intro-text {
    font-size: 20px;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

.z870e4contact-wrapper {
    margin-bottom: 60px;
}

.z870e4contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.z870e4contact-card {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.z870e4contact-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4contact-icon {
    font-size: 36px;
    background: linear-gradient(135deg, #1a73e8, #0d47a1);
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 20px;
    color: #fff;
}

.z870e4contact-content h3 {
    color: #1a73e8;
    font-size: 20px;
    margin-bottom: 10px;
}

.z870e4contact-content p {
    color: #666;
    font-size: 16px;
    margin-bottom: 5px;
}

.z870e4contact-time {
    color: #999;
    font-size: 14px;
}

.z870e4contact-form-wrapper {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    padding: 40px;
}

.z870e4form-header {
    text-align: center;
    margin-bottom: 30px;
}

.z870e4form-header h3 {
    color: #1a73e8;
    font-size: 24px;
    margin-bottom: 10px;
}

.z870e4form-header p {
    color: #666;
    font-size: 16px;
}

.z870e4contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.z870e4form-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.z870e4form-group:last-child {
    grid-template-columns: 1fr;
}

.z870e4contact-form input,
.z870e4contact-form select,
.z870e4contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.3s ease;
}

.z870e4contact-form input:focus,
.z870e4contact-form select:focus,
.z870e4contact-form textarea:focus {
    border-color: #1a73e8;
    box-shadow: 0 0 0 2px rgba(26, 115, 232, 0.1);
    outline: none;
}

.z870e4contact-form textarea {
    height: 150px;
    resize: vertical;
}

.z870e4contact-form button {
    width: 100%;
    padding: 15px;
    font-size: 18px;
    border-radius: 8px;
}

.z870e4contact-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.z870e4contact-features .z870e4feature-item {
    text-align: center;
    padding: 25px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
}

.z870e4contact-features .z870e4feature-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.z870e4contact-features .z870e4feature-icon {
    font-size: 32px;
    margin-bottom: 15px;
}

.z870e4contact-features h4 {
    color: #1a73e8;
    font-size: 18px;
    margin-bottom: 10px;
}

.z870e4contact-features p {
    color: #666;
    font-size: 14px;
}

/* 针对超小屏幕的优化 */
@media (max-width: 360px) {
    .z870e4container {
        padding: 0 10px;
    }

    .z870e4contact-card {
        padding: 15px;
    }

    .z870e4contact-icon {
        width: 45px;
        height: 45px;
        font-size: 22px;
    }

    .z870e4contact-content h3 {
        font-size: 15px;
    }

    .z870e4contact-content p {
        font-size: 13px;
    }

    .z870e4contact-form-wrapper {
        padding: 15px;
    }

    .z870e4form-header h3 {
        font-size: 16px;
    }

    .z870e4form-header p {
        font-size: 13px;
    }

    .z870e4contact-form input,
    .z870e4contact-form select,
    .z870e4contact-form textarea {
        padding: 8px;
        font-size: 13px;
    }

    .z870e4contact-form button {
        padding: 8px;
        font-size: 14px;
    }
}

/* 页脚样式 */
.z870e4footer {
    background: #1a1a1a;
    color: #fff;
    padding: 30px 0 15px;
}

.z870e4footer-wrapper {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.z870e4footer-info {
    padding-right: 20px;
}

.z870e4footer-logo {
    font-size: 20px;
    font-weight: bold;
    color: #fff;
    margin-bottom: 12px;
    display: block;
}

.z870e4footer-desc {
    color: #999;
    font-size: 13px;
    line-height: 1.5;
    margin-bottom: 12px;
}

.z870e4footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z870e4footer-contact li {
    display: flex;
    align-items: center;
    color: #999;
    font-size: 13px;
    margin-bottom: 6px;
}

.z870e4footer-contact li i {
    margin-right: 8px;
    color: #1a73e8;
    font-size: 14px;
    width: 16px;
    text-align: center;
}

.z870e4footer-title {
    color: #fff;
    font-size: 15px;
    margin-bottom: 12px;
    font-weight: 600;
    position: relative;
    padding-bottom: 8px;
}

.z870e4footer-title:after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: #1a73e8;
}

.z870e4footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z870e4footer-links li {
    margin-bottom: 6px;
}

.z870e4footer-links a {
    color: #999;
    text-decoration: none;
    font-size: 13px;
    transition: all 0.3s;
    display: inline-block;
    padding: 2px 0;
}

.z870e4footer-links a:hover {
    color: #1a73e8;
    transform: translateX(5px);
}

.z870e4footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 12px;
    text-align: center;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.z870e4footer-bottom p {
    color: #999;
    font-size: 12px;
    margin: 0;
}

.z870e4footer-social {
    display: flex;
    gap: 15px;
}

.z870e4footer-social a {
    color: #999;
    font-size: 16px;
    transition: all 0.3s;
}

.z870e4footer-social a:hover {
    color: #1a73e8;
    transform: translateY(-2px);
}

/* 页脚响应式样式 */
@media (max-width: 992px) {
    .z870e4footer {
        padding: 25px 0 12px;
    }

    .z870e4footer-wrapper {
        grid-template-columns: 1fr 1fr;
        gap: 25px;
    }

    .z870e4footer-info {
        grid-column: 1 / -1;
        padding-right: 0;
        text-align: center;
    }

    .z870e4footer-logo {
        margin-bottom: 10px;
    }

    .z870e4footer-desc {
        max-width: 500px;
        margin: 0 auto 12px;
    }

    .z870e4footer-contact {
        justify-content: center;
    }

    .z870e4footer-contact li {
        justify-content: center;
    }

    .z870e4footer-title {
        text-align: center;
    }

    .z870e4footer-title:after {
        left: 50%;
        transform: translateX(-50%);
    }
}

@media (max-width: 768px) {
    .z870e4footer {
        padding: 20px 0 10px;
    }

    .z870e4footer-wrapper {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .z870e4footer-info {
        text-align: left;
    }

    .z870e4footer-desc {
        margin: 0 0 12px;
    }

    .z870e4footer-contact {
        justify-content: flex-start;
    }

    .z870e4footer-contact li {
        justify-content: flex-start;
    }

    .z870e4footer-title {
        text-align: left;
    }

    .z870e4footer-title:after {
        left: 0;
        transform: none;
    }

    .z870e4footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .z870e4footer-social {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .z870e4footer {
        padding: 15px 0 10px;
    }

    .z870e4footer-wrapper {
        gap: 15px;
    }

    .z870e4footer-logo {
        font-size: 18px;
        margin-bottom: 8px;
    }

    .z870e4footer-desc {
        font-size: 12px;
        margin-bottom: 10px;
    }

    .z870e4footer-contact li {
        font-size: 12px;
        margin-bottom: 5px;
    }

    .z870e4footer-title {
        font-size: 14px;
        margin-bottom: 10px;
        padding-bottom: 6px;
    }

    .z870e4footer-links li {
        margin-bottom: 5px;
    }

    .z870e4footer-links a {
        font-size: 12px;
    }

    .z870e4footer-bottom {
        padding-top: 10px;
    }

    .z870e4footer-bottom p {
        font-size: 11px;
    }

    .z870e4footer-social {
        gap: 12px;
    }

    .z870e4footer-social a {
        font-size: 14px;
    }
}

/* ========== 导航扩展 ========== */
.z870e4logo a {
    color: #1a73e8;
    text-decoration: none;
}

.z870e4nav-list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    flex-wrap: wrap;
    align-items: center;
}

.z870e4nav-item {
    margin-left: 24px;
}

.z870e4nav-item a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    font-size: 16px;
    white-space: nowrap;
    transition: color 0.3s;
}

.z870e4nav-item a:hover,
.z870e4nav-item.z870e4this a {
    color: #1a73e8;
}

/* ========== 内页通用布局 ========== */
.z870e4page-main {
    padding: 120px 0 80px;
    background: #f8f9fa;
    min-height: 60vh;
}

.z870e4breadcrumb {
    font-size: 14px;
    color: #666;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.z870e4breadcrumb a {
    color: #1a73e8;
    text-decoration: none;
}

.z870e4breadcrumb a:hover {
    text-decoration: underline;
}

.z870e4breadcrumb-sep {
    margin: 0 8px;
    color: #ccc;
}

.z870e4breadcrumb-current {
    color: #333;
}

.z870e4page-layout {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 30px;
    align-items: start;
}

.z870e4page-content {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    padding: 35px;
}

.z870e4page-head {
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
}

.z870e4page-title {
    font-size: 28px;
    color: #1a73e8;
    margin-bottom: 10px;
    line-height: 1.3;
}

.z870e4page-desc {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
}

/* ========== 列表页 ========== */
.z870e4list-items {
    list-style: none;
    margin: 0;
    padding: 0;
}

.z870e4list-item {
    display: flex;
    gap: 24px;
    padding: 24px 0;
    border-bottom: 1px solid #eee;
}

.z870e4list-item:last-child {
    border-bottom: none;
}

.z870e4list-thumb {
    flex-shrink: 0;
    width: 220px;
    height: 150px;
    border-radius: 10px;
    overflow: hidden;
    display: block;
    background: #f0f0f0;
}

.z870e4list-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.z870e4list-thumb:hover img {
    transform: scale(1.05);
}

.z870e4list-body {
    flex: 1;
    min-width: 0;
}

.z870e4list-title {
    font-size: 20px;
    margin: 0 0 12px;
    line-height: 1.4;
}

.z870e4list-title a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.z870e4list-title a:hover {
    color: #1a73e8;
}

.z870e4list-meta {
    font-size: 13px;
    color: #999;
    margin-bottom: 12px;
    display: flex;
    flex-wrap: wrap;
    gap: 12px 20px;
}

.z870e4list-meta a {
    color: #1a73e8;
    text-decoration: none;
}

.z870e4list-intro {
    color: #666;
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 12px;
}

.z870e4list-more {
    color: #1a73e8;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
}

.z870e4list-more:hover {
    text-decoration: underline;
}

/* 分页左右布局 */
.z870e4pagebar {
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid #eee;
}

.z870e4pagebar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.z870e4pagebar-prev,
.z870e4pagebar-next {
    flex: 0 0 auto;
    min-width: 100px;
}

.z870e4pagebar-prev {
    text-align: left;
}

.z870e4pagebar-next {
    text-align: right;
}

.z870e4pagebar-center {
    flex: 1;
    text-align: center;
}

.z870e4pagebar-center ul,
.z870e4pagebar-prev ul,
.z870e4pagebar-next ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: inline-flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    justify-content: center;
}

.z870e4pagebar a,
.z870e4pagebar span {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 6px;
    font-size: 14px;
    text-decoration: none;
    color: #333;
    background: #f5f5f5;
    transition: all 0.3s;
}

.z870e4pagebar a:hover {
    background: #1a73e8;
    color: #fff;
}

/* ========== 内容页 ========== */
.z870e4article-title {
    font-size: 30px;
    color: #222;
    line-height: 1.4;
    margin-bottom: 16px;
}

.z870e4article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 20px;
    font-size: 14px;
    color: #999;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    margin-bottom: 24px;
}

.z870e4article-meta a {
    color: #1a73e8;
    text-decoration: none;
}

.z870e4article-thumb {
    margin-bottom: 24px;
    border-radius: 12px;
    overflow: hidden;
    text-align: center;
    background: #f8f9fa;
}

.z870e4article-thumb img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.z870e4article-body {
    font-size: 16px;
    line-height: 1.9;
    color: #444;
    word-break: break-word;
}

.z870e4article-body img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 12px 0;
}

.z870e4article-body p {
    margin-bottom: 16px;
}

.z870e4article-gallery {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px dashed #eee;
}

.z870e4article-gallery p {
    margin-bottom: 20px;
}

.z870e4article-gallery img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.z870e4article-gallery span {
    display: block;
    font-size: 14px;
    color: #666;
    margin-top: 8px;
}

.z870e4diyfield {
    margin-top: 24px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 10px;
    font-size: 15px;
    line-height: 1.7;
}

.z870e4meta-tags {
    list-style: none;
    margin: 24px 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.z870e4tagitem a {
    display: inline-block;
    padding: 6px 14px;
    background: #e8f0fe;
    color: #1a73e8;
    border-radius: 20px;
    font-size: 13px;
    text-decoration: none;
    transition: all 0.3s;
}

.z870e4tagitem a:hover {
    background: #1a73e8;
    color: #fff;
}

.z870e4article-navlinks {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid #eee;
    font-size: 14px;
}

.z870e4article-prev,
.z870e4article-next {
    flex: 1;
    max-width: 48%;
}

.z870e4article-prev a,
.z870e4article-next a {
    color: #1a73e8;
    text-decoration: none;
}

.z870e4article-next {
    text-align: right;
}

.z870e4related {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #eee;
}

.z870e4related-title {
    font-size: 22px;
    color: #1a73e8;
    margin-bottom: 24px;
}

.z870e4related-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 20px;
}

.z870e4related-item {
    background: #f8f9fa;
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.z870e4related-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.1);
}

.z870e4related-thumb {
    display: block;
    height: 130px;
    overflow: hidden;
    background: #e0e0e0;
}

.z870e4related-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z870e4related-body {
    padding: 14px;
}

.z870e4related-body h4 {
    font-size: 15px;
    margin: 0 0 8px;
    line-height: 1.4;
}

.z870e4related-body h4 a {
    color: #333;
    text-decoration: none;
}

.z870e4related-body h4 a:hover {
    color: #1a73e8;
}

.z870e4related-body p {
    font-size: 13px;
    color: #666;
    margin: 0;
    line-height: 1.5;
}

/* ========== 侧栏 ========== */
.z870e4sidebar {
    position: sticky;
    top: 100px;
}

.z870e4sidebar-box {
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    padding: 22px;
    margin-bottom: 24px;
}

.z870e4sidebar-box:last-child {
    margin-bottom: 0;
}

.z870e4sidebar-title {
    font-size: 18px;
    color: #1a73e8;
    margin: 0 0 18px;
    padding-bottom: 12px;
    border-bottom: 2px solid #e8f0fe;
}

.z870e4sidebar-title a {
    color: inherit;
    text-decoration: none;
}

.z870e4sidebar-title a:hover {
    opacity: 0.85;
}

.z870e4sidebar-list {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 520px;
    overflow-y: auto;
}

.z870e4sidebar-item {
    border-bottom: 1px solid #f0f0f0;
}

.z870e4sidebar-item:last-child {
    border-bottom: none;
}

.z870e4sidebar-item a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    text-decoration: none;
    color: #444;
    font-size: 14px;
    line-height: 1.4;
    transition: color 0.3s;
}

.z870e4sidebar-item a:hover {
    color: #1a73e8;
}

.z870e4sidebar-thumb {
    flex-shrink: 0;
    width: 64px;
    height: 48px;
    border-radius: 6px;
    overflow: hidden;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.z870e4sidebar-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.z870e4sidebar-text {
    flex: 1;
    min-width: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ========== 首页资讯板块 ========== */
.z870e4home-articles {
    padding: 100px 0;
    background: #fff;
}

.z870e4home-articles-intro {
    text-align: center;
    margin-bottom: 50px;
}

.z870e4home-articles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.z870e4home-article-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.z870e4home-article-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.z870e4home-article-thumb {
    display: block;
    height: 140px;
    overflow: hidden;
    background: #f0f0f0;
}

.z870e4home-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.z870e4home-article-card:hover .z870e4home-article-thumb img {
    transform: scale(1.06);
}

.z870e4home-article-info {
    padding: 16px;
}

.z870e4home-article-info h3 {
    font-size: 15px;
    margin: 0 0 8px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z870e4home-article-info h3 a {
    color: #333;
    text-decoration: none;
    transition: color 0.3s;
}

.z870e4home-article-info h3 a:hover {
    color: #1a73e8;
}

.z870e4home-article-date {
    font-size: 12px;
    color: #999;
}

/* ========== 内页与资讯板块响应式 ========== */
@media (max-width: 1200px) {
    .z870e4home-articles-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .z870e4page-layout {
        grid-template-columns: 1fr 280px;
    }
}

@media (max-width: 992px) {
    .z870e4page-main {
        padding: 100px 0 60px;
    }

    .z870e4page-layout {
        grid-template-columns: 1fr;
    }

    .z870e4sidebar {
        position: static;
    }

    .z870e4home-articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z870e4nav-item {
        margin-left: 0;
    }

    .z870e4list-item {
        flex-direction: column;
    }

    .z870e4list-thumb {
        width: 100%;
        height: 200px;
    }

    .z870e4pagebar {
        flex-direction: column;
        align-items: stretch;
    }

    .z870e4pagebar-prev,
    .z870e4pagebar-next {
        text-align: center;
        min-width: auto;
    }

    .z870e4article-navlinks {
        flex-direction: column;
    }

    .z870e4article-prev,
    .z870e4article-next {
        max-width: 100%;
        text-align: left;
    }
}

@media (max-width: 768px) {
    .z870e4page-main {
        padding: 80px 0 40px;
    }

    .z870e4page-content {
        padding: 22px 18px;
    }

    .z870e4page-title,
    .z870e4article-title {
        font-size: 22px;
    }

    .z870e4home-articles {
        padding: 50px 0;
    }

    .z870e4home-articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .z870e4home-article-thumb {
        height: 120px;
    }

    .z870e4related-list {
        grid-template-columns: 1fr 1fr;
    }

    .z870e4sidebar-list {
        max-height: 360px;
    }
}

@media (max-width: 480px) {
    .z870e4home-articles-grid {
        grid-template-columns: 1fr;
    }

    .z870e4list-thumb {
        height: 160px;
    }

    .z870e4related-list {
        grid-template-columns: 1fr;
    }

    .z870e4breadcrumb {
        font-size: 12px;
    }
}