/* QQ音乐资讯站 - 主样式文件 */
:root {
    --primary-color: #31C27C;
    --primary-dark: #28a86a;
    --secondary-color: #2D2D2D;
    --bg-light: #FFFFFF;
    --bg-gray: #F5F5F5;
    --bg-dark: #1A1A1A;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-light: #999999;
    --border-color: #E5E5E5;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.12);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "PingFang SC", "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-light);
}

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

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 头部导航 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 10px rgba(0,0,0,0.05);
    z-index: 1000;
    height: 70px;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
}

.logo img {
    width: 36px;
    height: 36px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 32px;
}

.nav-menu a {
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 500;
    position: relative;
    padding: 8px 0;
}

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

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

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

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-primary);
}

/* Hero区域 */
.hero {
    padding: 120px 0 80px;
    background: linear-gradient(135deg, #f8fffe 0%, #e8f8f0 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(49,194,124,0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-content h1 {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.hero-content h1 span {
    color: var(--primary-color);
}

.hero-content p {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 32px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(49,194,124,0.3);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* 客户端模拟器 */
.client-simulator {
    position: relative;
    perspective: 1000px;
}

.simulator-frame {
    background: var(--bg-dark);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    transform: rotateY(-5deg) rotateX(2deg);
    transition: transform 0.5s ease;
}

.simulator-frame:hover {
    transform: rotateY(0) rotateX(0);
}

.simulator-header {
    background: #2D2D2D;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.simulator-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.simulator-dot.red { background: #FF5F56; }
.simulator-dot.yellow { background: #FFBD2E; }
.simulator-dot.green { background: #27C93F; }

.simulator-title {
    color: #999;
    font-size: 13px;
    margin-left: auto;
}

.simulator-body {
    display: grid;
    grid-template-columns: 180px 1fr;
    min-height: 320px;
}

.simulator-sidebar {
    background: #252525;
    padding: 16px 0;
}

.simulator-nav-item {
    padding: 12px 20px;
    color: #999;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.simulator-nav-item:hover,
.simulator-nav-item.active {
    background: rgba(49,194,124,0.1);
    color: var(--primary-color);
}

.simulator-nav-item .icon {
    width: 18px;
    height: 18px;
    background: currentColor;
    opacity: 0.6;
    border-radius: 4px;
}

.simulator-main {
    background: #1A1A1A;
    padding: 20px;
}

.simulator-search {
    background: #333;
    border-radius: 20px;
    padding: 10px 16px;
    color: #666;
    font-size: 13px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.simulator-playlists {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.playlist-card {
    background: #252525;
    border-radius: 8px;
    overflow: hidden;
    transition: var(--transition);
}

.playlist-card:hover {
    transform: translateY(-4px);
}

.playlist-cover {
    aspect-ratio: 1;
    background: linear-gradient(135deg, #31C27C, #28a86a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 24px;
}

.playlist-info {
    padding: 10px;
}

.playlist-title {
    color: #fff;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-artist {
    color: #666;
    font-size: 11px;
    margin-top: 4px;
}

.simulator-player {
    background: #252525;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    border-top: 1px solid #333;
}

.player-cover {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, #31C27C, #28a86a);
    border-radius: 6px;
}

.player-info {
    flex: 1;
}

.player-title {
    color: #fff;
    font-size: 13px;
    font-weight: 500;
}

.player-artist {
    color: #666;
    font-size: 11px;
}

.player-controls {
    display: flex;
    align-items: center;
    gap: 16px;
}

.player-btn {
    width: 32px;
    height: 32px;
    background: #333;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #999;
    font-size: 14px;
}

.player-btn.play {
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
}

.player-progress {
    flex: 1;
    height: 4px;
    background: #333;
    border-radius: 2px;
    position: relative;
}

.player-progress::after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 35%;
    height: 100%;
    background: var(--primary-color);
    border-radius: 2px;
}

/* 公告区 */
.announcement {
    background: var(--bg-gray);
    padding: 16px 0;
    border-bottom: 1px solid var(--border-color);
}

.announcement-content {
    display: flex;
    align-items: center;
    gap: 16px;
    overflow: hidden;
}

.announcement-label {
    background: var(--primary-color);
    color: white;
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
}

.announcement-list {
    display: flex;
    gap: 40px;
    animation: scroll 30s linear infinite;
}

.announcement-item {
    color: var(--text-secondary);
    font-size: 14px;
    white-space: nowrap;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* 区块通用样式 */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
}

/* 核心功能区 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(49,194,124,0.1), rgba(49,194,124,0.05));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 28px;
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 对比表格 */
.compare-table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.compare-table th,
.compare-table td {
    padding: 16px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.compare-table th {
    background: var(--bg-gray);
    font-weight: 600;
    color: var(--text-primary);
}

.compare-table th:first-child,
.compare-table td:first-child {
    text-align: left;
    font-weight: 500;
}

.compare-table tr:last-child td {
    border-bottom: none;
}

.compare-table .highlight {
    background: rgba(49,194,124,0.05);
    color: var(--primary-color);
    font-weight: 600;
}

.check-yes {
    color: var(--primary-color);
    font-weight: 700;
}

.check-no {
    color: #ccc;
}

/* 新闻Tab */
.news-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 30px;
    justify-content: center;
    flex-wrap: wrap;
}

.news-tab {
    padding: 10px 24px;
    background: var(--bg-gray);
    border-radius: 20px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.news-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.news-image {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #31C27C, #28a86a);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.news-content {
    padding: 20px;
}

.news-category {
    display: inline-block;
    background: rgba(49,194,124,0.1);
    color: var(--primary-color);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 10px;
}

.news-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 10px;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-meta {
    display: flex;
    gap: 16px;
    font-size: 13px;
    color: var(--text-light);
}

/* 用户评论 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.review-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.review-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 18px;
}

.review-info h4 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.review-stars {
    color: #FFB800;
    font-size: 14px;
}

.review-content {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 下载区 */
.download-section {
    background: linear-gradient(135deg, #1A1A1A, #2D2D2D);
    color: white;
}

.download-section .section-title {
    color: white;
}

.download-section .section-subtitle {
    color: #999;
}

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

.download-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    transition: var(--transition);
}

.download-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.download-icon {
    font-size: 36px;
    margin-bottom: 12px;
}

.download-platform {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
}

.download-version {
    font-size: 12px;
    color: #999;
    margin-bottom: 16px;
}

.download-btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 10px 20px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* 信任背书 */
.trust-section {
    background: var(--bg-gray);
}

.trust-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    text-align: center;
}

.stat-item h3 {
    font-size: 42px;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.stat-item p {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 应用场景 */
.scenarios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.scenario-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.scenario-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}

.scenario-image {
    aspect-ratio: 4/3;
    background: linear-gradient(135deg, #31C27C, #28a86a);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.scenario-content {
    padding: 20px;
}

.scenario-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.scenario-desc {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* FAQ区 */
.faq-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.faq-category {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

.faq-category:hover {
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.faq-category-icon {
    width: 48px;
    height: 48px;
    background: rgba(49,194,124,0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}

.faq-category-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.faq-category-desc {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.faq-category-link {
    font-size: 14px;
    font-weight: 500;
    color: var(--primary-color);
}

/* 底部CTA */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    text-align: center;
    padding: 60px 0;
}

.cta-title {
    font-size: 28px;
    font-weight: 700;
    color: white;
    margin-bottom: 16px;
}

.cta-desc {
    font-size: 16px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 24px;
}

.cta-btn {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 14px 40px;
    border-radius: var(--radius);
    font-size: 16px;
    font-weight: 600;
    transition: var(--transition);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    color: var(--primary-color);
}

/* 页脚 */
.footer {
    background: var(--bg-dark);
    color: #999;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand h3 {
    color: white;
    font-size: 20px;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 14px;
    line-height: 1.7;
}

.footer-links h4 {
    color: white;
    font-size: 16px;
    margin-bottom: 16px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    color: #999;
    font-size: 14px;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 30px;
    text-align: center;
    font-size: 13px;
}

/* 面包屑 */
.breadcrumb {
    padding: 20px 0;
    background: var(--bg-gray);
    margin-top: 70px;
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
    font-size: 14px;
}

.breadcrumb-item a {
    color: var(--text-secondary);
}

.breadcrumb-item.active {
    color: var(--text-primary);
}

.breadcrumb-separator {
    color: var(--text-light);
}

/* 文章页面 */
.article-container {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    padding: 40px 0;
}

.article-main {
    background: white;
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow);
}

.article-title {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.article-meta {
    display: flex;
    gap: 20px;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border-color);
}

.article-content h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 32px 0 16px;
}

.article-content p {
    font-size: 16px;
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.article-content img {
    border-radius: var(--radius);
    margin: 20px 0;
}

.article-sidebar {
    position: sticky;
    top: 90px;
    align-self: start;
}

.sidebar-widget {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
}

.sidebar-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.sidebar-news-list {
    list-style: none;
}

.sidebar-news-item {
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.sidebar-news-item a {
    font-size: 14px;
    color: var(--text-primary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.sidebar-news-item a:hover {
    color: var(--primary-color);
}

.sidebar-news-date {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

/* 文章导航 */
.article-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
}

.article-nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.article-nav-item:hover {
    color: var(--primary-color);
}

/* 评论区 */
.comments-section {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.comments-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
}

.comment-item {
    display: flex;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

.comment-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 14px;
    flex-shrink: 0;
}

.comment-content {
    flex: 1;
}

.comment-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.comment-author {
    font-weight: 600;
    color: var(--text-primary);
}

.comment-date {
    font-size: 13px;
    color: var(--text-light);
}

.comment-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 相关阅读 */
.related-articles {
    margin-top: 40px;
    padding-top: 40px;
    border-top: 1px solid var(--border-color);
}

.related-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 24px;
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.related-card {
    background: var(--bg-gray);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
}

.related-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.related-image {
    aspect-ratio: 16/9;
    background: linear-gradient(135deg, #31C27C, #28a86a);
}

.related-content {
    padding: 16px;
}

.related-card-title {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* HTML Sitemap */
.sitemap-section {
    padding: 40px 0;
}

.sitemap-category {
    margin-bottom: 40px;
}

.sitemap-category h2 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--primary-color);
}

.sitemap-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    list-style: none;
}

.sitemap-links a {
    color: var(--text-secondary);
    font-size: 14px;
    padding: 8px 0;
    display: block;
}

.sitemap-links a:hover {
    color: var(--primary-color);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .client-simulator {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .features-grid,
    .news-grid,
    .reviews-grid,
    .faq-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .trust-stats,
    .scenarios-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .article-container {
        grid-template-columns: 1fr;
    }
    
    .article-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 20px;
        box-shadow: var(--shadow);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-toggle {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 28px;
    }
    
    .section-title {
        font-size: 24px;
    }
    
    .features-grid,
    .news-grid,
    .reviews-grid,
    .faq-grid,
    .related-grid {
        grid-template-columns: 1fr;
    }
    
    .download-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .trust-stats,
    .scenarios-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .sitemap-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .compare-table {
        font-size: 13px;
    }
    
    .compare-table th,
    .compare-table td {
        padding: 10px;
    }
    
    .simulator-body {
        grid-template-columns: 1fr;
    }
    
    .simulator-sidebar {
        display: none;
    }
}