:root {
    --primary-color: #2962ff;
    --secondary-color: #1e88e5;
    --accent-color: #00c853;
    --dark-color: #333;
    --light-color: #f8f9fa;
    --text-color: #333;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

.z7ca39container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.z7ca39site-header {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.z7ca39header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
    position: relative;
}

.z7ca39logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.z7ca39logo a {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.z7ca39logo-image {
    height: 40px;
    width: auto;
    margin-right: 10px;
}

.z7ca39logo span {
    font-size: 20px;
    font-weight: bold;
    color: #333;
}

.z7ca39main-nav ul {
    display: flex;
    list-style: none;
    gap: 24px;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.z7ca39main-nav a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    font-size: 1.1rem;
    transition: var(--transition);
    padding: 8px 0;
    position: relative;
}

.z7ca39main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

.z7ca39main-nav a:hover::after {
    width: 100%;
}

/* Hero Section */
.z7ca39hero-section {
    padding: 140px 0 100px;
    background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.z7ca39hero-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.z7ca39hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 25px;
    color: var(--dark-color);
    line-height: 1.2;
    font-weight: 800;
}

.z7ca39subtitle {
    font-size: 1.4rem;
    color: #555;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.z7ca39version-info {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-bottom: 50px;
    flex-wrap: wrap;
}

.z7ca39version-item {
    text-align: center;
    padding: 20px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    min-width: 200px;
}

.z7ca39version-item span {
    display: block;
    color: #666;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.z7ca39version-item strong {
    color: var(--primary-color);
    font-size: 1.3rem;
    display: block;
}

/* Download Buttons */
.z7ca39download-buttons {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 50px;
}

.z7ca39download-btn {
    padding: 25px 50px;
    background: var(--primary-color);
    border-radius: var(--border-radius);
    color: white;
    cursor: pointer;
    transition: var(--transition);
    min-width: 280px;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.z7ca39download-btn .z7ca39btn-title {
    font-weight: 700;
}

.z7ca39download-btn .z7ca39btn-desc {
    margin-top: 5px;
}

.z7ca39download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition);
}

.z7ca39download-btn:hover::before {
    left: 100%;
}

.z7ca39download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(41,98,255,0.2);
}

.z7ca39btn-title {
    font-size: 1.4rem;
    margin-bottom: 8px;
}

.z7ca39btn-desc {
    font-size: 1rem;
    opacity: 0.9;
}

.z7ca39app-desc {
    margin: 20px auto 30px;
    max-width: 800px;
    text-align: center;
}

.z7ca39app-desc p {
    color: #555;
    font-size: 1.2rem;
    line-height: 1.6;
}

.z7ca39app-preview {
    text-align: center;
    margin: 20px 0;
}

.z7ca39app-image {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.z7ca39section-title {
    text-align: center;
    margin-bottom: 70px;
}

.z7ca39section-title h2 {
    font-size: 2.5rem;
    color: var(--dark-color);
    margin-bottom: 20px;
}

.z7ca39section-title p {
    color: #666;
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto;
}

.z7ca39guide-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

/* Guide Section */
.z7ca39guide-section {
    padding: 100px 0;
    background: #fff;
}

.z7ca39guide-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 40px;
}

.z7ca39guide-card {
    background: var(--light-color);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.z7ca39guide-card h3 {
    font-size: 1.8rem;
    margin-bottom: 30px;
    color: var(--primary-color);
    text-align: center;
}

.z7ca39guide-steps {
    counter-reset: step;
}

.z7ca39guide-step {
    position: relative;
    padding-left: 50px;
    margin-bottom: 25px;
}

.z7ca39guide-step::before {
    counter-increment: step;
    content: counter(step);
    position: absolute;
    left: 0;
    top: 0;
    width: 35px;
    height: 35px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.z7ca39guide-step h4 {
    font-size: 1.2rem;
    margin-bottom: 8px;
    color: var(--dark-color);
}

.z7ca39guide-step p {
    color: #666;
}

/* Footer */
.z7ca39site-footer {
    background: var(--dark-color);
    color: #fff;
    padding: 50px 0 30px;
}

.z7ca39footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.z7ca39footer-info {
    text-align: center;
}

.z7ca39footer-info p {
    margin-bottom: 15px;
    color: rgba(255,255,255,0.8);
    font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .z7ca39hero-content h1 {
        font-size: 2.8rem;
    }
    
    .z7ca39subtitle {
        font-size: 1.2rem;
    }
    
    .z7ca39download-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .z7ca39download-btn {
        width: 100%;
        max-width: 400px;
    }
}

@media (max-width: 768px) {
    .z7ca39header-content {
        flex-direction: column;
        height: auto;
        padding: 0;
    }

    .z7ca39logo {
        padding: 15px;
        width: 100%;
        text-align: center;
        border-bottom: 1px solid #eee;
    }

    .z7ca39main-nav {
        width: 100%;
        display: none; /* 默认隐藏导航菜单 */
    }

    .z7ca39main-nav.z7ca39active {
        display: block; /* 点击时显示导航菜单 */
    }

    .z7ca39main-nav ul {
        flex-direction: column;
        width: 100%;
        padding: 0;
        margin: 0;
        gap: 0;
    }

    .z7ca39main-nav li {
        width: 100%;
        border-bottom: 1px solid #eee;
    }

    .z7ca39main-nav a {
        display: block;
        padding: 15px;
        text-align: center;
        font-size: 16px;
        color: var(--text-color);
        background: #fff;
        transition: none;
    }

    .z7ca39main-nav a:hover {
        background: var(--primary-color);
        color: #fff;
    }

    .z7ca39main-nav a::after {
        display: none;
    }

    /* 移动端菜单按钮 */
    .z7ca39menu-toggle {
        display: block;
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        width: 30px;
        height: 24px;
        cursor: pointer;
        z-index: 1001;
    }

    .z7ca39menu-toggle span {
        display: block;
        width: 100%;
        height: 2px;
        background: var(--primary-color);
        margin: 5px 0;
        transition: 0.4s;
    }

    /* 菜单按钮动画 */
    .z7ca39menu-toggle.z7ca39active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .z7ca39menu-toggle.z7ca39active span:nth-child(2) {
        opacity: 0;
    }

    .z7ca39menu-toggle.z7ca39active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    /* 内容区域适配 */
    .z7ca39hero-section {
        padding-top: 80px;
    }

    .z7ca39hero-content h1 {
        font-size: 24px;
        padding: 0 15px;
        margin-bottom: 15px;
    }

    .z7ca39subtitle {
        font-size: 16px;
        padding: 0 15px;
        margin-bottom: 20px;
    }

    .z7ca39version-info {
        flex-direction: column;
        gap: 10px;
        padding: 0 15px;
    }

    .z7ca39version-item {
        width: 100%;
    }

    /* 其他部分响应式优化 */
    .z7ca39guide-section {
        padding: 40px 0;
    }

    .z7ca39section-title {
        margin-bottom: 30px;
    }

    .z7ca39section-title h2 {
        font-size: 22px;
    }

    .z7ca39guide-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 15px;
    }

    .z7ca39guide-card {
        padding: 20px;
    }

    .z7ca39guide-step {
        padding-left: 35px;
    }

    .z7ca39guide-step::before {
        width: 25px;
        height: 25px;
        font-size: 0.9rem;
    }

    .z7ca39app-desc {
        padding: 0 20px;
    }
    
    .z7ca39app-desc p {
        font-size: 1rem;
    }
    
    .z7ca39keyword-section {
        margin: 20px 15px;
        padding: 15px 0;
    }
    
    .z7ca39keyword-list {
        gap: 8px;
        padding: 0 10px;
    }
    
    .z7ca39keyword-item {
        font-size: 0.9rem;
        padding: 6px 12px;
    }

    .z7ca39links-section {
        padding: 30px 15px;
    }

    .z7ca39related-sites {
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .z7ca39container {
        padding: 0 15px;
    }

    .z7ca39hero-content h1 {
        font-size: 1.6rem;
    }

    .z7ca39subtitle {
        font-size: 1rem;
    }

    .z7ca39app-desc p {
        font-size: 1rem;
    }

    .z7ca39section-title h2 {
        font-size: 1.6rem;
    }

    .z7ca39btn-title {
        font-size: 1.2rem;
    }

    .z7ca39btn-desc {
        font-size: 0.9rem;
    }

    .z7ca39guide-step::before {
        width: 30px;
        height: 30px;
    }

    .z7ca39footer-content {
        gap: 20px;
    }

    .z7ca39download-btn {
        padding: 15px;
    }

    .z7ca39guide-card {
        padding: 25px;
    }
}

@media (max-width: 360px) {
    .z7ca39container {
        padding: 0 10px;
    }

    .z7ca39hero-content h1 {
        font-size: 1.5rem;
    }

    .z7ca39subtitle {
        font-size: 1rem;
    }

    .z7ca39version-item {
        padding: 15px;
    }

    .z7ca39download-btn {
        padding: 15px;
        min-width: auto;
    }

    .z7ca39btn-title {
        font-size: 1.1rem;
    }

    .z7ca39section-title h2 {
        font-size: 1.5rem;
    }
}

@media (max-height: 600px) and (orientation: landscape) {
    .z7ca39hero-section {
        padding: 90px 0 30px;
    }

    .z7ca39version-info {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .z7ca39download-buttons {
        flex-direction: row;
        justify-content: center;
        gap: 15px;
    }

    .z7ca39main-nav ul {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .z7ca39container {
        padding: 0 20px;
    }

    .z7ca39hero-content h1 {
        font-size: 2.2rem;
    }

    .z7ca39version-info {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .z7ca39download-buttons {
        gap: 20px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Keywords */
.z7ca39keyword-section {
    padding: 20px 0;
    background: rgba(41,98,255,0.03);
    margin: 30px 0;
    border-radius: var(--border-radius);
}

.z7ca39keyword-section h2 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    text-align: center;
}

.z7ca39keyword-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 20px;
    padding: 0 20px;
}

.z7ca39keyword-item {
    background: #fff;
    padding: 10px 20px;
    border-radius: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    font-weight: 500;
    color: var(--dark-color);
}

/* 广告部分样式 */
.z7ca39ad-section {
    margin: 20px 0;
    text-align: center;
}

/* 友情链接部分样式 */
.z7ca39links-section {
    padding: 40px 0;
    background: var(--light-color);
}

.z7ca39links-wrapper {
    margin-top: 20px;
}

.z7ca39related-sites {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    list-style: none;
    padding: 0;
}

.z7ca39related-sites li a {
    color: var(--text-color);
    text-decoration: none;
    padding: 5px 15px;
    background: white;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.z7ca39related-sites li a:hover {
    color: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Menu toggle - desktop hidden */
.z7ca39menu-toggle {
    display: none;
}

.z7ca39main-nav li.z7ca39this a,
.z7ca39main-nav a.z7ca39this {
    color: var(--primary-color);
}

/* Inner pages */
.z7ca39inner-page .z7ca39page-main {
    padding-top: 70px;
}

.z7ca39page-banner {
    background: linear-gradient(135deg, #f5f7ff 0%, #ffffff 100%);
    padding: 40px 0 30px;
    border-bottom: 1px solid #eee;
}

.z7ca39page-title {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.z7ca39page-desc {
    color: #666;
    font-size: 1rem;
}

.z7ca39page-layout {
    display: flex;
    gap: 30px;
    padding: 40px 0 60px;
    align-items: flex-start;
}

.z7ca39content-col {
    flex: 1;
    min-width: 0;
}

.z7ca39sidebar {
    width: 300px;
    flex-shrink: 0;
}

.z7ca39sidebar-widget {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    margin-bottom: 24px;
    overflow: hidden;
}

.z7ca39sidebar-title {
    font-size: 1.1rem;
    padding: 14px 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: #fff;
    margin: 0;
}

.z7ca39sidebar-title a {
    color: #fff;
    text-decoration: none;
}

.z7ca39sidebar-list {
    list-style: none;
    padding: 8px 0;
    margin: 0;
    max-height: 520px;
    overflow-y: auto;
}

.z7ca39sidebar-item {
    border-bottom: 1px solid #f0f0f0;
}

.z7ca39sidebar-item:last-child {
    border-bottom: none;
}

.z7ca39sidebar-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    text-decoration: none;
    color: var(--text-color);
    transition: var(--transition);
}

.z7ca39sidebar-link:hover {
    background: rgba(41,98,255,0.05);
    color: var(--primary-color);
}

.z7ca39sidebar-thumb {
    flex-shrink: 0;
    width: 64px;
    height: 48px;
    overflow: hidden;
    border-radius: 4px;
    background: #f0f0f0;
}

.z7ca39sidebar-text {
    flex: 1;
    font-size: 0.9rem;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* List page */
.z7ca39article-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.z7ca39list-item {
    display: flex;
    gap: 24px;
    padding: 24px;
    margin-bottom: 20px;
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.z7ca39list-item:hover {
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.z7ca39list-thumb {
    flex-shrink: 0;
    width: 280px;
    height: 180px;
    overflow: hidden;
    border-radius: var(--border-radius);
    display: block;
    background: #f5f5f5;
}

.z7ca39list-thumb img,
.z7ca39sidebar-thumb img,
.z7ca39related-thumb img,
.z7ca39home-article-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.z7ca39list-thumb img,
.z7ca39home-article-thumb img {
    transition: var(--transition);
}

.z7ca39list-item:hover .z7ca39list-thumb img {
    transform: scale(1.05);
}

.z7ca39list-body {
    flex: 1;
    min-width: 0;
}

.z7ca39list-title {
    font-size: 1.35rem;
    margin-bottom: 10px;
    line-height: 1.4;
}

.z7ca39list-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: var(--transition);
}

.z7ca39list-title a:hover {
    color: var(--primary-color);
}

.z7ca39list-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.9rem;
    color: #888;
    margin-bottom: 12px;
}

.z7ca39list-meta a {
    color: var(--primary-color);
    text-decoration: none;
}

.z7ca39list-intro {
    color: #666;
    line-height: 1.7;
    margin-bottom: 12px;
}

.z7ca39list-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.z7ca39list-more:hover {
    text-decoration: underline;
}

/* Pagination left-right */
.z7ca39pagebar {
    margin-top: 30px;
    padding: 20px 0;
}

.z7ca39pagebar-lr {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    background: #fff;
    padding: 16px 24px;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.z7ca39page-left,
.z7ca39page-center,
.z7ca39page-right {
    flex: 1;
    min-width: 0;
}

.z7ca39page-left {
    text-align: left;
}

.z7ca39page-center {
    text-align: center;
}

.z7ca39page-right {
    text-align: right;
}

.z7ca39pagebar .pagelist {
    display: flex;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
    margin: 0;
    gap: 8px;
    align-items: center;
}

.z7ca39page-center .pagelist {
    justify-content: center;
}

.z7ca39page-right .pagelist {
    justify-content: flex-end;
}

.z7ca39pagebar .pagelist a,
.z7ca39pagebar .pagelist span {
    display: inline-block;
    padding: 8px 14px;
    border-radius: 4px;
    text-decoration: none;
    color: var(--text-color);
    background: #f5f5f5;
    transition: var(--transition);
}

.z7ca39pagebar .pagelist a:hover,
.z7ca39pagebar .pagelist .thisclass {
    background: var(--primary-color);
    color: #fff;
}

/* Article detail */
.z7ca39breadcrumb {
    font-size: 0.9rem;
    color: #888;
    padding: 10px 0;
}

.z7ca39breadcrumb a {
    color: var(--primary-color);
    text-decoration: none;
}

.z7ca39breadcrumb span {
    margin: 0 8px;
}

.z7ca39article-detail {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    padding: 32px;
    margin-bottom: 24px;
}

.z7ca39article-title {
    font-size: 1.8rem;
    color: var(--dark-color);
    line-height: 1.4;
    margin-bottom: 16px;
}

.z7ca39article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    font-size: 0.9rem;
    color: #888;
    padding-bottom: 20px;
    border-bottom: 1px solid #eee;
    margin-bottom: 24px;
}

.z7ca39article-meta a {
    color: var(--primary-color);
    text-decoration: none;
}

.z7ca39article-cover {
    margin-bottom: 24px;
    text-align: center;
}

.z7ca39article-cover img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
}

.z7ca39article-cover img[src=""] {
    display: none;
}

.z7ca39article-body {
    font-size: 1rem;
    line-height: 1.8;
    color: #444;
}

.z7ca39article-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 16px 0;
}

.z7ca39article-body p {
    margin-bottom: 16px;
}

.z7ca39article-gallery {
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid #eee;
}

.z7ca39gallery-item {
    margin-bottom: 20px;
    text-align: center;
}

.z7ca39gallery-item img {
    max-width: 100%;
    border-radius: var(--border-radius);
}

.z7ca39gallery-item span {
    display: block;
    margin-top: 8px;
    color: #888;
    font-size: 0.9rem;
}

.z7ca39meta-tags {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 20px 0 0;
    margin: 0;
    border-top: 1px solid #eee;
}

.z7ca39tagitem a {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(41,98,255,0.08);
    color: var(--primary-color);
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.85rem;
    transition: var(--transition);
}

.z7ca39tagitem a:hover {
    background: var(--primary-color);
    color: #fff;
}

.z7ca39diyfield {
    margin: 20px 0;
    padding: 16px;
    background: #f8f9fa;
    border-radius: var(--border-radius);
}

.z7ca39prenext {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.z7ca39prenext-item {
    flex: 1;
    min-width: 200px;
    padding: 16px 20px;
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.z7ca39prenext-item span {
    color: #888;
    font-size: 0.9rem;
}

.z7ca39prenext-item a {
    color: var(--primary-color);
    text-decoration: none;
}

.z7ca39related-section {
    background: #fff;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    padding: 24px;
}

.z7ca39related-title {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--dark-color);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.z7ca39related-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.z7ca39related-item {
    display: flex;
    gap: 14px;
}

.z7ca39related-thumb {
    flex-shrink: 0;
    width: 120px;
    height: 80px;
    overflow: hidden;
    border-radius: 4px;
    display: block;
    background: #f0f0f0;
}

.z7ca39related-body h4 {
    font-size: 0.95rem;
    margin-bottom: 6px;
    line-height: 1.4;
}

.z7ca39related-body h4 a {
    color: var(--dark-color);
    text-decoration: none;
}

.z7ca39related-body h4 a:hover {
    color: var(--primary-color);
}

.z7ca39related-body p {
    font-size: 0.85rem;
    color: #888;
    line-height: 1.5;
}

/* Homepage articles - 5 per row, 2 rows */
.z7ca39home-articles-section {
    padding: 80px 0;
    background: var(--light-color);
}

.z7ca39home-articles-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}

.z7ca39home-article-card {
    background: #fff;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    transition: var(--transition);
}

.z7ca39home-article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.z7ca39home-article-thumb {
    display: block;
    height: 140px;
    overflow: hidden;
    background: #f0f0f0;
}

.z7ca39home-article-card:hover .z7ca39home-article-thumb img {
    transform: scale(1.05);
}

.z7ca39home-article-info {
    padding: 14px;
}

.z7ca39home-article-info h3 {
    font-size: 0.95rem;
    line-height: 1.4;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.z7ca39home-article-info h3 a {
    color: var(--dark-color);
    text-decoration: none;
}

.z7ca39home-article-info h3 a:hover {
    color: var(--primary-color);
}

.z7ca39home-article-date {
    font-size: 0.8rem;
    color: #999;
}

/* Inner page responsive */
@media (max-width: 992px) {
    .z7ca39page-layout {
        flex-direction: column;
    }

    .z7ca39sidebar {
        width: 100%;
    }

    .z7ca39home-articles-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .z7ca39related-list {
        grid-template-columns: 1fr;
    }}

@media (max-width: 768px) {
    .z7ca39main-nav ul {
        flex-wrap: wrap;
    }

    .z7ca39list-item {
        flex-direction: column;
        padding: 16px;
    }

    .z7ca39list-thumb {
        width: 100%;
        height: 200px;
    }

    .z7ca39article-detail {
        padding: 20px 16px;
    }

    .z7ca39article-title {
        font-size: 1.4rem;
    }

    .z7ca39pagebar-lr {
        flex-direction: column;
        text-align: center;
    }

    .z7ca39page-left,
    .z7ca39page-center,
    .z7ca39page-right {
        text-align: center;
        width: 100%;
    }

    .z7ca39page-left .pagelist,
    .z7ca39page-center .pagelist,
    .z7ca39page-right .pagelist {
        justify-content: center;
    }

    .z7ca39prenext {
        flex-direction: column;
    }

    .z7ca39home-articles-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .z7ca39home-articles-section {
        padding: 40px 0;
    }

    .z7ca39page-banner {
        padding: 30px 0 20px;
    }

    .z7ca39page-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .z7ca39home-articles-grid {
        grid-template-columns: 1fr;
    }

    .z7ca39home-article-thumb {
        height: 180px;
    }

    .z7ca39sidebar-thumb {
        width: 56px;
        height: 42px;
    }

    .z7ca39related-item {
        flex-direction: column;
    }

    .z7ca39related-thumb {
        width: 100%;
        height: 140px;
    }
}