@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;600;700&display=swap');
/* 
 * 全局样式表 - NexTech 科技 
 * 采用 CSS 变量实现深色主题与现代化设计
 */

:root {
    /* 核心颜色配置 */
    --color-primary: #00F0FF;     /* 霓虹蓝/亮青色 - 品牌主色 */
    --color-primary-dark: #00A3FF;
    --color-secondary: #7000FF;   /* 辅色 - 紫色 */
    --color-bg-dark: #050B14;     /* 深空蓝黑背景 */
    --color-bg-darker: #02050A;
    --color-surface: rgba(255, 255, 255, 0.03); /* 毛玻璃卡片背景 */
    --color-surface-hover: rgba(255, 255, 255, 0.08);
    
    /* 文本颜色 */
    --text-primary: #FFFFFF;
    --text-secondary: #A0AAB2;
    --text-muted: #6B7280;

    /* 渐变与特效 */
    --gradient-brand: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    --glow-primary: 0 0 20px rgba(0, 240, 255, 0.4);
    --glow-surface: 0 8px 32px rgba(0, 0, 0, 0.4);
    --border-glass: 1px solid rgba(255, 255, 255, 0.05);
    
    /* 间距与布局 */
    --container-width: 1200px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 32px;
    --spacing-xl: 64px;
    --spacing-2xl: 120px;
    
    /* 动画过渡 */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* 圆角 */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
}

/* ===== 基础重置 ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

/* ===== 布局容器 ===== */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.section-padding {
    padding: var(--spacing-2xl) 0;
}

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

.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }

/* ===== 文本样式 ===== */
.text-gradient {
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

h1, h2, h3, h4 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xl);
}

/* ===== 组件样式 ===== */

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 12px 0;
    background: rgba(5, 11, 20, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: var(--border-glass);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.logo-icon {
    color: var(--color-primary);
    width: 28px;
    height: 28px;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
    position: relative;
}

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

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-primary);
    transition: width var(--transition-fast);
    border-radius: 2px;
}

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

.nav-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 100px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    outline: none;
    text-decoration: none;
}

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

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

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--color-primary);
}

.btn-outline:hover {
    background: rgba(0, 240, 255, 0.1);
    box-shadow: var(--glow-primary);
}

.btn-glass {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* 毛玻璃卡片 */
.glass-card {
    background: var(--color-surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: var(--border-glass);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--glow-surface);
    transition: transform var(--transition-normal), background var(--transition-normal);
}

.glass-card:hover {
    background: var(--color-surface-hover);
    transform: translateY(-5px);
}

/* ===== 首页样式 ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    opacity: 0.6;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 100px;
    background: rgba(0, 240, 255, 0.1);
    border: 1px solid rgba(0, 240, 255, 0.2);
    color: var(--color-primary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.hero-title {
    font-size: 4rem;
    letter-spacing: -0.02em;
    margin-bottom: var(--spacing-md);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    max-width: 90%;
}

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

/* Dashboard Mockup */
.main-dashboard-mockup {
    padding: 12px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.mockup-header {
    display: flex;
    gap: 8px;
    padding-bottom: 12px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}
.dot.red { background: #FF5F56; }
.dot.yellow { background: #FFBD2E; }
.dot.green { background: #27C93F; }

.mockup-img {
    border-radius: var(--radius-sm);
    width: 100%;
}

/* 核心业务 */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.service-icon-wrapper {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-md);
    background: rgba(0, 240, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
}

.service-icon {
    width: 32px;
    height: 32px;
}

.service-card h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.service-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.learn-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--color-primary);
    font-weight: 600;
}
.learn-more i {
    width: 16px;
    height: 16px;
    transition: transform var(--transition-fast);
}
.learn-more:hover i {
    transform: translateX(4px);
}

/* 数据展示 */
.stats {
    background: var(--color-bg-darker);
    padding: var(--spacing-xl) 0;
    border-top: var(--border-glass);
    border-bottom: var(--border-glass);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    text-align: center;
}

.stat-item {
    padding: var(--spacing-md);
}

.stat-number {
    display: inline-block;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--color-primary);
    line-height: 1;
}

.stat-suffix {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
}

.stat-label {
    margin-top: 8px;
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* 页脚 */
.footer {
    background: var(--color-bg-darker);
    padding: var(--spacing-xl) 0 0 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.footer-brand .logo {
    margin-bottom: var(--spacing-md);
}

.footer-desc {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    max-width: 300px;
}

.social-links {
    display: flex;
    gap: 16px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

.social-links a:hover {
    background: var(--color-primary);
    color: var(--color-bg-darker);
    transform: translateY(-2px);
}

.footer-links h4, .footer-contact h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links ul li {
    margin-bottom: 12px;
}

.footer-links ul a {
    color: var(--text-secondary);
}

.footer-links ul a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

.contact-info li {
    display: flex;
    gap: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    align-items: flex-start;
}

.contact-info i {
    color: var(--color-primary);
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

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

/* ===== 子页面通用样式 ===== */
.sub-page {
    padding-top: 80px;
}

.page-header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
    background: linear-gradient(to bottom, rgba(0, 240, 255, 0.05), transparent);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.page-header h1 {
    font-size: 3.5rem;
    background: var(--gradient-brand);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-sm);
}

.page-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

.bg-alt {
    background: var(--color-bg-darker);
}

/* ===== 关于我们页面 ===== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.vm-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.accent-icon {
    color: var(--color-primary);
    width: 32px;
    height: 32px;
}

.rounded-image {
    border-radius: var(--radius-lg);
    width: 100%;
    object-fit: cover;
}

.shadow-glow {
    box-shadow: var(--glow-surface), 0 0 40px rgba(0, 240, 255, 0.1);
}

/* 时间轴 */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    height: 100%;
    width: 2px;
    background: rgba(255, 255, 255, 0.1);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 40px;
}

.timeline-item:last-child {
    margin-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: 13px;
    top: 0;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.timeline-content h3 {
    color: var(--color-primary);
    margin-bottom: 8px;
}

.timeline-content h4 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.timeline-content p {
    color: var(--text-secondary);
}

/* 团队 */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.team-card {
    text-align: center;
    padding: 0;
    overflow: hidden;
}

.team-avatar {
    width: 100%;
    height: 300px;
    object-fit: cover;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.team-info {
    padding: 24px;
}

.team-role {
    display: block;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 12px;
}

.team-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ===== 产品与服务页面 ===== */
.service-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-2xl);
}

.service-row.reverse {
    direction: rtl;
}

.service-row.reverse > * {
    direction: ltr;
}

.service-row:last-child {
    margin-bottom: 0;
}

.icon-box {
    width: 56px;
    height: 56px;
    background: rgba(0, 240, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    margin-bottom: 24px;
}

.icon-box i {
    width: 28px;
    height: 28px;
}

.service-row-content p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 24px;
}

.feature-list {
    margin-bottom: 24px;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-size: 1.05rem;
}

.mockup-card {
    padding: 8px;
}
.mockup-card img {
    border-radius: var(--radius-sm);
    width: 100%;
}

.cta-section {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.1), rgba(112, 0, 255, 0.1));
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

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

.cta-desc {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
}

/* ===== 新闻动态页面 ===== */
.filter-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.filter-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-secondary);
    padding: 8px 24px;
    border-radius: 100px;
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.filter-btn.active, .filter-btn:hover {
    background: var(--color-primary);
    color: var(--color-bg-darker);
    border-color: var(--color-primary);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.news-card {
    padding: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

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

.news-card.featured .news-img-wrapper {
    flex: 1;
    height: 100%;
}

.news-card.featured .news-content {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-img-wrapper {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.news-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.news-card:hover .news-img-wrapper img {
    transform: scale(1.05);
}

.news-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--color-primary);
    color: var(--color-bg-darker);
    padding: 4px 12px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.news-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.news-meta {
    display: flex;
    gap: 16px;
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.news-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.news-meta i {
    width: 14px;
    height: 14px;
}

.news-card h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
    line-height: 1.4;
}

.news-card.featured h3 {
    font-size: 2rem;
}

.news-card p {
    color: var(--text-secondary);
    margin-bottom: 24px;
    flex: 1;
}

.read-more {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    color: var(--text-primary);
    font-weight: 600;
    align-self: flex-start;
}

.read-more:hover {
    color: var(--color-primary);
}

.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 60px;
}

.page-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.page-btn:hover:not(.disabled) {
    background: rgba(255, 255, 255, 0.1);
}

.page-btn.active {
    background: var(--color-primary);
    color: var(--color-bg-darker);
    border-color: var(--color-primary);
}

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

/* ===== 联系我们页面 ===== */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 0;
    padding: 0;
    overflow: hidden;
}

.contact-info-panel {
    background: linear-gradient(135deg, rgba(0, 240, 255, 0.05), transparent);
    padding: 40px;
    border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.contact-info-panel p {
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.contact-methods li {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.method-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-primary);
    flex-shrink: 0;
}

.method-text h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.method-text p {
    margin-bottom: 0;
    font-size: 0.95rem;
}

.social-circle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    margin-right: 12px;
    transition: all var(--transition-fast);
}

.social-circle:hover {
    background: var(--color-primary);
    color: var(--color-bg-darker);
}

.contact-form-panel {
    padding: 40px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* 隐藏地图以纯色占位 */
.map-container {
    position: relative;
    height: 400px;
    width: 100%;
    overflow: hidden;
}

.map-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: grayscale(100%) brightness(0.4) contrast(1.2);
}

.map-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(5, 11, 20, 0.4);
}

.map-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--color-primary);
    animation: bounce 2s infinite ease-in-out;
}

.map-marker i {
    width: 48px;
    height: 48px;
    filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.8));
}

.map-marker span {
    background: var(--color-bg-darker);
    padding: 4px 12px;
    border-radius: 100px;
    border: 1px solid var(--color-primary);
    font-weight: 600;
    margin-top: 8px;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* ===== 动画效果 ===== */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }


/* ----- 差异化风格覆盖 ----- */
:root { --color-primary: #FFD700; --color-secondary: #FFA500; --color-bg-dark: #0A0A0A; } body { font-family: 'Playfair Display', serif; }
/* ===== 新闻详情页样式 ===== */
.article-header {
    max-width: 800px;
    margin: 0 auto 40px;
    text-align: center;
}
.article-title {
    font-size: 2.5rem;
    margin-bottom: 16px;
    line-height: 1.3;
}
.article-meta {
    display: flex;
    justify-content: center;
    gap: 24px;
    color: var(--text-muted);
    font-size: 0.95rem;
}
.article-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}
.article-featured-img {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    margin-bottom: 48px;
}
.article-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-secondary);
}
.article-content p {
    margin-bottom: 24px;
}
.article-content h2 {
    color: var(--text-primary);
    font-size: 1.8rem;
    margin: 40px 0 20px;
}
.article-content ul, .article-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}
.article-content li {
    margin-bottom: 8px;
}
.article-content blockquote {
    border-left: 4px solid var(--color-primary);
    padding-left: 20px;
    margin: 32px 0;
    font-style: italic;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.02);
    padding: 20px;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.article-footer {
    max-width: 800px;
    margin: 60px auto 0;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.article-tags {
    display: flex;
    gap: 12px;
}
.article-tag {
    background: rgba(0, 240, 255, 0.1);
    color: var(--color-primary);
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.85rem;
}
.back-to-news {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-primary);
    font-weight: 600;
}
.back-to-news:hover {
    color: var(--color-primary);
}