/* 基础样式 */
:root {
    --primary-color: #4361ee;
    --primary-dark: #3a56d4;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --text-color: #333;
    --text-light: #666;
    --text-lighter: #999;
    --bg-color: #fff;
    --bg-light: #f8f9fa;
    --bg-dark: #f1f3f5;
    --border-color: #e9ecef;
    --success-color: #4bb543;
    --warning-color: #f0ad4e;
    --danger-color: #d9534f;
    --info-color: #5bc0de;
    --font-main: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --font-heading: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--bg-color);
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

img {
    max-width: 100%;
    height: auto;
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: white;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large {
    padding: 12px 28px;
    font-size: 1.1rem;
}

/* 头部样式 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    padding: 15px 0;
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 40px;
}

.main-nav ul {
    display: flex;
}

.main-nav li {
    margin: 0 15px;
    position: relative;
}

.main-nav a {
    color: var(--text-color);
    font-weight: 500;
    padding: 5px 0;
    position: relative;
}

.main-nav a:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.main-nav a:hover:after,
.main-nav li.active a:after {
    width: 100%;
}

.main-nav li.active a {
    color: var(--primary-color);
}

.header-actions {
    margin-left: 20px;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* 英雄区域 */
.hero-slider {
    margin-top: 70px;
    position: relative;
    height: 600px;
    overflow: hidden;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease;
}

.slide.active {
    opacity: 1;
}

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

.slide-content {
    position: absolute;
    top: 50%;
    left: 10%;
    transform: translateY(-50%);
    max-width: 500px;
    color: white;
    text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.slide-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.slide-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.slider-controls {
    position: absolute;
    top: 50%;
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    transform: translateY(-50%);
}

.slider-controls button {
    background-color: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.slider-controls button:hover {
    background-color: rgba(255, 255, 255, 0.4);
}

.slider-dots {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
}

.slider-dots .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.5);
    margin: 0 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.slider-dots .dot.active {
    background-color: white;
    transform: scale(1.2);
}

/* 特性区域 */
.section-title {
    text-align: center;
    margin-bottom: 50px;
    font-size: 2.2rem;
    color: var(--text-color);
}

.section-title:after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
    margin: 15px auto 0;
}

.features-section {
    padding: 80px 0;
    background-color: var(--bg-light);
}

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

.feature-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 2rem;
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

/* 产品展示 */
.product-showcase {
    padding: 80px 0;
}

.showcase-item {
    display: flex;
    align-items: center;
    margin-bottom: 80px;
}

.showcase-item.reverse {
    flex-direction: row-reverse;
}

.showcase-content {
    flex: 1;
    padding: 0 40px;
}

.showcase-image {
    flex: 1;
}

.showcase-content h3 {
    font-size: 1.8rem;
    margin-bottom: 20px;
}

.showcase-content p {
    margin-bottom: 20px;
    color: var(--text-light);
}

.feature-list li {
    margin-bottom: 10px;
    display: flex;
    align-items: center;
}

.feature-list i {
    color: var(--success-color);
    margin-right: 10px;
    font-size: 1.1rem;
}

/* 应用场景 */
.use-cases {
    padding: 80px 0;
    background-color: var(--bg-light);
}

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

.case-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.case-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.case-content {
    padding: 20px;
    background-color: white;
}

.case-content h3 {
    margin-bottom: 10px;
    font-size: 1.3rem;
}

/* 用户评价 */
.testimonials {
    padding: 80px 0;
}

.testimonial-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial {
    background-color: white;
    padding: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    display: none;
}

.testimonial.active {
    display: block;
}

.quote {
    font-size: 1.2rem;
    font-style: italic;
    margin-bottom: 30px;
    color: var(--text-light);
    position: relative;
}

.quote:before,
.quote:after {
    content: '"';
    font-size: 3rem;
    color: var(--primary-color);
    opacity: 0.2;
    position: absolute;
}

.quote:before {
    top: -20px;
    left: -10px;
}

.quote:after {
    bottom: -40px;
    right: -10px;
}

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

.author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.author-info h4 {
    margin-bottom: 5px;
}

.author-info p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* CTA区域 */
.cta-section {
    padding: 100px 0;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.cta-section h2 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.2rem;
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.cta-buttons .btn-secondary {
    color: white;
    border-color: white;
}

.cta-buttons .btn-secondary:hover {
    background-color: white;
    color: var(--primary-color);
}

/* 页脚 */
.footer {
    background-color: #2b2d42;
    color: white;
    padding: 60px 0 0;
}

.footer a {
    color: rgba(255, 255, 255, 0.7);
}

.footer a:hover {
    color: white;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.contact-info li {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.contact-info i {
    margin-right: 10px;
    width: 20px;
    text-align: center;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
}

/* 帮助页样式 */
.page-header {
    padding: 120px 0 60px;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.search-box {
    max-width: 600px;
    margin: 30px auto 0;
    position: relative;
}

.search-box input {
    width: 100%;
    padding: 15px 20px;
    border-radius: 50px;
    border: none;
    font-size: 1rem;
    box-shadow: var(--shadow-md);
}

.search-box button {
    position: absolute;
    right: 5px;
    top: 5px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

.help-content {
    padding: 50px 0;
}

.help-sidebar {
    width: 250px;
    float: left;
    position: sticky;
    top: 100px;
}

.sidebar-menu {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    margin-bottom: 30px;
}

.sidebar-menu h3 {
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-menu li {
    margin-bottom: 10px;
}

.sidebar-menu a {
    color: var(--text-light);
    display: block;
    padding: 8px 0;
}

.sidebar-menu a:hover,
.sidebar-menu li.active a {
    color: var(--primary-color);
}

.sidebar-support {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 20px;
    text-align: center;
}

.sidebar-support h3 {
    margin-bottom: 15px;
}

.sidebar-support p {
    color: var(--text-light);
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.help-main {
    margin-left: 280px;
}

.help-section {
    margin-bottom: 60px;
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 30px;
}

.help-section h2 {
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.help-article {
    margin-bottom: 40px;
}

.help-article h3 {
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.help-article h4 {
    margin: 20px 0 10px;
    font-size: 1.2rem;
}

.steps {
    margin: 30px 0;
}

.step {
    display: flex;
    margin-bottom: 30px;
}

.step-number {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-right: 20px;
    flex-shrink: 0;
}

.step-content h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.step-content img {
    margin-top: 15px;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
}

.note {
    background-color: #f8f9fa;
    border-left: 4px solid var(--primary-color);
    padding: 15px;
    margin: 20px 0;
    font-size: 0.9rem;
}

.note strong {
    color: var(--primary-color);
}

.video-tutorial {
    margin: 30px 0;
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    margin-top: 15px;
    border-radius: var(--radius-sm);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.feature-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.feature-table th,
.feature-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.feature-table th {
    background-color: var(--bg-light);
    font-weight: 600;
}

.code-example {
    background-color: #2b2d42;
    color: #f8f9fa;
    padding: 20px;
    border-radius: var(--radius-sm);
    margin: 20px 0;
    overflow-x: auto;
}

.code-example h5 {
    margin-bottom: 10px;
    color: #adb5bd;
}

.code-example pre {
    margin: 0;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

.troubleshooting-list {
    margin: 20px 0;
}

.troubleshooting-item {
    background-color: var(--bg-light);
    padding: 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 15px;
}

.troubleshooting-item h4 {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.troubleshooting-item p {
    margin-bottom: 5px;
    font-size: 0.95rem;
}

.troubleshooting-item p strong {
    color: var(--primary-color);
}

.faq-list {
    margin: 20px 0;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.faq-question h3 {
    font-size: 1.1rem;
}

.faq-question i {
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 0 20px;
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.help-cta {
    padding: 80px 0;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.help-cta h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.help-cta p {
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 资讯列表页样式 */
.news-header {
    padding: 120px 0 60px;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.news-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.news-categories {
    padding: 20px 0;
    background-color: var(--bg-light);
    position: sticky;
    top: 70px;
    z-index: 100;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.news-categories ul {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.news-categories li {
    margin: 0 5px;
}

.news-categories a {
    display: block;
    padding: 8px 20px;
    border-radius: 50px;
    background-color: white;
    color: var(--text-light);
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.news-categories li.active a,
.news-categories a:hover {
    background-color: var(--primary-color);
    color: white;
}

.news-list {
    padding: 50px 0;
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.news-card {
    background-color: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

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

.news-card.featured {
    grid-column: 1 / -1;
    display: flex;
}

.news-card.featured .news-image {
    flex: 1;
}

.news-card.featured .news-content {
    flex: 1;
    padding: 30px;
}

.news-image {
    height: 200px;
    position: relative;
}

.news-card.featured .news-image {
    height: auto;
}

.news-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.category-tag {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
}

.news-content {
    padding: 20px;
}

.news-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 10px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.news-card h2 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    line-height: 1.4;
}

.news-card.featured h2 {
    font-size: 1.8rem;
}

.excerpt {
    margin-bottom: 15px;
    color: var(--text-light);
}

.read-more {
    font-weight: 500;
    color: var(--primary-color);
    display: inline-flex;
    align-items: center;
}

.read-more i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.read-more:hover i {
    transform: translateX(3px);
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 50px;
}

.page-nav,
.page-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: white;
    color: var(--text-light);
    font-weight: 500;
    transition: all 0.3s ease;
}

.page-nav.disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.page-nav:not(.disabled):hover,
.page-number:hover {
    background-color: var(--primary-color);
    color: white;
}

.page-number.active {
    background-color: var(--primary-color);
    color: white;
}

.newsletter {
    padding: 80px 0;
    background-color: var(--bg-light);
    text-align: center;
}

.newsletter h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.newsletter p {
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.newsletter-form {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
}

.newsletter-form input {
    flex: 1;
    padding: 15px 20px;
    border: 1px solid var(--border-color);
    border-radius: 50px 0 0 50px;
    font-size: 1rem;
}

.newsletter-form button {
    padding: 15px 30px;
    border-radius: 0 50px 50px 0;
}

.small-text {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 15px;
}

/* 资讯详情页样式 */
.news-detail-header {
    padding: 120px 0 30px;
    background-color: var(--primary-color);
    color: white;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.breadcrumbs a {
    color: rgba(255, 255, 255, 0.8);
}

.breadcrumbs a:hover {
    color: white;
}

.breadcrumbs i {
    font-size: 0.7rem;
    opacity: 0.7;
}

.breadcrumbs span {
    color: white;
}

.news-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.news-meta .category-tag {
    position: static;
    display: inline-block;
}

.news-meta .views {
    display: flex;
    align-items: center;
}

.news-meta .views i {
    margin-right: 5px;
}

.news-detail-content {
    padding: 50px 0;
}

.news-detail-content h1 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    line-height: 1.3;
}

.featured-image {
    margin-bottom: 40px;
}

.featured-image img {
    width: 100%;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.image-caption {
    text-align: center;
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.content-wrapper {
    display: flex;
    gap: 40px;
}

.article-content {
    flex: 1;
}

.article-sidebar {
    width: 300px;
    position: sticky;
    top: 100px;
    align-self: flex-start;
}

.intro {
    font-size: 1.2rem;
    line-height: 1.7;
    margin-bottom: 40px;
    color: var(--text-color);
}

.news-detail-content h2 {
    font-size: 1.8rem;
    margin: 40px 0 20px;
    line-height: 1.3;
}

.news-detail-content h3 {
    font-size: 1.4rem;
    margin: 30px 0 15px;
}

.news-detail-content p {
    margin-bottom: 20px;
    line-height: 1.7;
}

.news-detail-content ul,
.news-detail-content ol {
    margin-bottom: 20px;
    padding-left: 20px;
}

.news-detail-content li {
    margin-bottom: 10px;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin: 30px 0;
}

.gallery-item img {
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-sm);
    margin-bottom: 10px;
}

.gallery-item p {
    text-align: center;
    font-size: 0.9rem;
    color: var(--text-light);
}

.feature-table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.feature-table th,
.feature-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.feature-table th {
    background-color: var(--bg-light);
    font-weight: 600;
}

.quote-block {
    background-color: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius-md);
    margin: 40px 0;
    position: relative;
}

.quote-block:before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.1;
    line-height: 1;
}

blockquote {
    font-style: italic;
    font-size: 1.2rem;
    line-height: 1.7;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.quote-author {
    display: flex;
    align-items: center;
}

.quote-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 15px;
    object-fit: cover;
}

.quote-author strong {
    display: block;
    margin-bottom: 5px;
}

.quote-author span {
    font-size: 0.9rem;
    color: var(--text-light);
}

.update-highlights {
    margin: 40px 0;
}

.highlight-item {
    display: flex;
    margin-bottom: 20px;
}

.highlight-icon {
    width: 50px;
    height: 50px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-right: 20px;
    flex-shrink: 0;
}

.highlight-content h4 {
    margin-bottom: 5px;
    font-size: 1.2rem;
}

.view-all {
    display: inline-flex;
    align-items: center;
    font-weight: 500;
    color: var(--primary-color);
}

.view-all i {
    margin-left: 5px;
    transition: transform 0.3s ease;
}

.view-all:hover i {
    transform: translateX(3px);
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 50px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.tags a {
    display: inline-block;
    padding: 5px 15px;
    background-color: var(--bg-light);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.tags a:hover {
    background-color: var(--primary-color);
    color: white;
}

.sharing {
    display: flex;
    align-items: center;
    gap: 15px;
}

.sharing a {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.sharing a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
}

.sidebar-widget {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 25px;
    margin-bottom: 30px;
}

.sidebar-widget h3 {
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.author-info {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.author-info img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 20px;
}

.author-details h4 {
    margin-bottom: 5px;
}

.author-details p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.author-social {
    display: flex;
    gap: 10px;
}

.author-social a {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: var(--bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.author-social a:hover {
    background-color: var(--primary-color);
    color: white;
}

.related-article {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.related-article:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.related-article img {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    margin-right: 15px;
    flex-shrink: 0;
}

.related-article h4 {
    font-size: 0.95rem;
    margin-bottom: 5px;
    line-height: 1.4;
}

.related-article .date {
    font-size: 0.8rem;
    color: var(--text-light);
}

.download-card {
    display: flex;
    align-items: center;
    padding: 15px;
    background-color: var(--bg-light);
    border-radius: var(--radius-sm);
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.download-card:last-child {
    margin-bottom: 0;
}

.download-card:hover {
    background-color: var(--primary-color);
    color: white;
}

.download-card:hover * {
    color: white;
}

.download-card i {
    font-size: 1.5rem;
    margin-right: 15px;
    color: var(--primary-color);
}

.download-info h4 {
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.download-info p {
    font-size: 0.8rem;
    color: var(--text-light);
}

.download-btn {
    margin-left: auto;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    transition: all 0.3s ease;
}

.download-card:hover .download-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}

.comments-section {
    padding: 50px 0;
    border-top: 1px solid var(--border-color);
}

.comments-count {
    color: var(--text-light);
    font-weight: normal;
    font-size: 1rem;
}

.comment-form {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 30px;
    margin-bottom: 40px;
}

.comment-form h3 {
    margin-bottom: 20px;
}

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

.form-group textarea,
.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group textarea:focus,
.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.form-row {
    display: flex;
    gap: 20px;
}

.form-row .form-group {
    flex: 1;
}

.comments-list {
    margin-bottom: 30px;
}

.comment {
    display: flex;
    margin-bottom: 30px;
}

.comment.reply {
    margin-left: 60px;
}

.comment-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    flex-shrink: 0;
}

.comment-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 10px;
}

.comment-header h4 {
    font-size: 1rem;
}

.comment-date {
    font-size: 0.85rem;
    color: var(--text-light);
}

.reply-btn {
    font-size: 0.85rem;
    color: var(--primary-color);
    margin-left: auto;
}

.comment-text {
    margin-bottom: 10px;
}

.comments-pagination {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.comments-pagination a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: white;
    color: var(--text-light);
    font-weight: 500;
    transition: all 0.3s ease;
}

.comments-pagination a.active,
.comments-pagination a:hover {
    background-color: var(--primary-color);
    color: white;
}

.recommended-news {
    padding: 50px 0;
    border-top: 1px solid var(--border-color);
}

.recommended-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

/* 下载页样式 */
.download-header {
    padding: 120px 0 60px;
    background-color: var(--primary-color);
    color: white;
    text-align: center;
}

.download-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

.download-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: 12px 30px;
    background-color: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.download-card {
    display: flex;
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.download-info {
    flex: 1;
    display: flex;
    align-items: center;
}

.os-icon {
    width: 80px;
    height: 80px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-right: 30px;
}

.version-info h3 {
    margin-bottom: 10px;
    font-size: 1.5rem;
}

.version-info p {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 5px;
}

.download-actions {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.download-meta {
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--text-light);
    text-align: right;
}

.download-meta span {
    display: block;
    margin-bottom: 3px;
}

.download-details {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 30px;
    margin-bottom: 50px;
}

.download-details h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.download-details ol,
.download-details ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.download-details li {
    margin-bottom: 10px;
}

.alternative-downloads {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
    margin-top: 20px;
}

.alt-download {
    display: flex;
    align-items: center;
    padding: 15px;
    background-color: var(--bg-light);
    border-radius: var(--radius-sm);
    transition: all 0.3s ease;
}

.alt-download:hover {
    background-color: var(--primary-color);
    color: white;
}

.alt-download:hover * {
    color: white;
}

.alt-download i {
    font-size: 1.2rem;
    margin-right: 15px;
    color: var(--primary-color);
}

.alt-download strong {
    display: block;
    margin-bottom: 3px;
    font-size: 0.95rem;
}

.alt-download span {
    font-size: 0.85rem;
    color: var(--text-light);
}

.version-features {
    padding: 80px 0;
    background-color: var(--bg-light);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.feature-item {
    background-color: white;
    padding: 30px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    text-align: center;
    transition: all 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    width: 70px;
    height: 70px;
    background-color: rgba(67, 97, 238, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--primary-color);
    font-size: 1.8rem;
}

.feature-item h3 {
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.version-notes {
    background-color: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    padding: 30px;
}

.version-notes h3 {
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.release-notes h4 {
    margin: 25px 0 15px;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.release-notes ul {
    margin-bottom: 20px;
    padding-left: 20px;
}

.release-notes li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
}

.release-notes li:before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.download-faq {
    padding: 80px 0;
}

.download-faq .section-title {
    margin-bottom: 30px;
}

/* 响应式样式 */
@media (max-width: 992px) {
    .content-wrapper {
        flex-direction: column;
    }
    
    .article-sidebar {
        width: 100%;
        position: static;
    }
    
    .help-sidebar {
        width: 100%;
        float: none;
        position: static;
        margin-bottom: 40px;
    }
    
    .help-main {
        margin-left: 0;
    }
    
    .showcase-item {
        flex-direction: column;
    }
    
    .showcase-item.reverse {
        flex-direction: column;
    }
    
    .showcase-content {
        padding: 0;
        margin-bottom: 30px;
    }
}

@media (max-width: 768px) {
    .main-nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        box-shadow: var(--shadow-md);
        padding: 20px;
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        z-index: 999;
    }
    
    .main-nav.active {
        transform: translateY(0);
    }
    
    .main-nav ul {
        flex-direction: column;
    }
    
    .main-nav li {
        margin: 10px 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .header-actions {
        display: none;
    }
    
    .hero-slider {
        height: 500px;
    }
    
    .slide-content {
        left: 5%;
        max-width: 90%;
    }
    
    .slide-content h1 {
        font-size: 2.2rem;
    }
    
    .news-card.featured {
        flex-direction: column;
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    .newsletter-form input {
        border-radius: 50px;
        margin-bottom: 10px;
    }
    
    .newsletter-form button {
        border-radius: 50px;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 15px;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .image-gallery {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        flex-direction: column;
        gap: 0;
    }
    
    .download-info {
        margin-bottom: 20px;
    }
    
    .download-actions {
        align-items: flex-start;
        width: 100%;
    }
    
    .download-meta {
        text-align: left;
    }
}

@media (max-width: 576px) {
    .hero-slider {
        height: 400px;
    }
    
    .slide-content h1 {
        font-size: 1.8rem;
    }
    
    .slide-content p {
        font-size: 1rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .news-categories ul {
        justify-content: flex-start;
    }
    
    .news-card.featured h2 {
        font-size: 1.4rem;
    }
    
    .news-detail-content h1 {
        font-size: 2rem;
    }
    
    .comment.reply {
        margin-left: 30px;
    }
    
    .download-tabs {
        flex-wrap: wrap;
        justify-content: flex-start;
    }
    
    .tab-btn {
        padding: 10px 20px;
    }
}