/* 
 * 乐天堂 - 足球五大联赛直播平台
 * 主样式文件 - 2026年SEO优化版本
 * 移动优先响应式设计
 */

/* CSS变量定义 - 独特配色方案 */
:root {
    --primary-color: #0D4C73;
    --secondary-color: #1E88E5;
    --accent-color: #FF6B35;
    --success-color: #00C853;
    --warning-color: #FFB300;
    --dark-bg: #0A1628;
    --card-bg: #112240;
    --text-primary: #E6F1FF;
    --text-secondary: #8892B0;
    --border-color: #233554;
    --gradient-start: #0D4C73;
    --gradient-end: #1E88E5;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --font-main: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    --font-heading: 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-main);
    background: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 链接样式 */
a {
    color: var(--secondary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-color);
}

/* 图片响应式 */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* 容器布局 */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 24px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 32px;
    }
}

/* 头部导航 - 非sticky */
.site-header {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--card-bg) 100%);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

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

.logo-wrap img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-heading);
}

/* 主导航 */
.main-nav {
    display: none;
}

@media (min-width: 768px) {
    .main-nav {
        display: flex;
        gap: 8px;
    }
}

.main-nav a {
    padding: 8px 14px;
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

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

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* 移动端导航菜单 */
.mobile-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 16px;
    z-index: 100;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav a {
    display: block;
    padding: 12px 16px;
    color: var(--text-secondary);
    border-radius: var(--border-radius-sm);
    margin-bottom: 4px;
}

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

/* CTA按钮 */
.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--accent-color) 0%, #FF8A5B 100%);
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--border-radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.3);
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 107, 53, 0.4);
    color: #fff;
}

/* Hero区域 */
.hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--card-bg) 100%);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.3;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(13, 76, 115, 0.9) 0%, rgba(10, 22, 40, 0.95) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    padding: 60px 0;
}

.hero-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.3;
    font-family: var(--font-heading);
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 2.8rem;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

.hero-title span {
    color: var(--accent-color);
}

.hero-desc {
    font-size: 1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 24px;
    line-height: 1.8;
}

@media (min-width: 768px) {
    .hero-desc {
        font-size: 1.15rem;
    }
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 40px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
        max-width: 700px;
    }
}

.stat-item {
    text-align: center;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 面包屑导航 */
.breadcrumb {
    padding: 16px 0;
    font-size: 0.9rem;
}

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

.breadcrumb-list li::after {
    content: '/';
    margin-left: 8px;
    color: var(--text-secondary);
}

.breadcrumb-list li:last-child::after {
    display: none;
}

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

.breadcrumb-list a:hover {
    color: var(--accent-color);
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 12px;
    font-family: var(--font-heading);
}

@media (min-width: 768px) {
    .section-title {
        font-size: 2.25rem;
    }
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* 联赛卡片网格 */
.leagues-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 60px;
}

@media (min-width: 640px) {
    .leagues-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .leagues-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.league-card {
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.league-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px var(--shadow-color);
    border-color: var(--primary-color);
}

.league-card-img {
    position: relative;
    height: 180px;
    overflow: hidden;
}

.league-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.league-card:hover .league-card-img img {
    transform: scale(1.08);
}

.league-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 6px 12px;
    background: var(--accent-color);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
}

.league-card-body {
    padding: 20px;
}

.league-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.league-card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 16px;
}

.league-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.league-card-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--secondary-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.league-card-link:hover {
    color: var(--accent-color);
}

/* 特色功能区 */
.features-section {
    padding: 80px 0;
    background: linear-gradient(180deg, var(--card-bg) 0%, var(--dark-bg) 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-item {
    text-align: center;
    padding: 32px 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    transition: all var(--transition-normal);
}

.feature-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--primary-color);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border-radius: 50%;
}

.feature-icon img {
    width: 32px;
    height: 32px;
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.feature-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 关于我们区域 */
.about-section {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr 1fr;
    }
}

.about-content h2 {
    font-size: 2rem;
    margin-bottom: 20px;
}

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

.about-image {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: 0 20px 60px var(--shadow-color);
}

/* 支付方式区域 */
.payment-section {
    padding: 60px 0;
    background: var(--card-bg);
}

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

@media (min-width: 640px) {
    .payment-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 1024px) {
    .payment-grid {
        grid-template-columns: repeat(5, 1fr);
    }
}

.payment-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.payment-item.highlight {
    border-color: var(--success-color);
    background: rgba(0, 200, 83, 0.1);
}

.payment-item img {
    height: 40px;
    width: auto;
}

.payment-name {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* 牌照区域 */
.license-section {
    padding: 60px 0;
}

.license-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 24px;
}

@media (min-width: 768px) {
    .license-content {
        flex-direction: row;
        text-align: left;
    }
}

.license-badge {
    width: 150px;
    height: 150px;
    flex-shrink: 0;
}

.license-info h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.license-info p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.license-number {
    display: inline-block;
    margin-top: 12px;
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    font-family: monospace;
    color: var(--success-color);
}

/* 客户支持区域 */
.support-section {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--card-bg) 100%);
}

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

@media (min-width: 768px) {
    .support-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.support-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-md);
}

.support-icon {
    width: 56px;
    height: 56px;
    flex-shrink: 0;
}

.support-info h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

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

/* FAQ区域 */
.faq-section {
    padding: 80px 0;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    background: var(--card-bg);
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.faq-question:hover {
    background: rgba(255, 255, 255, 0.05);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--accent-color);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    display: none;
    padding: 20px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    line-height: 1.8;
}

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

/* 用户评论区域 */
.reviews-section {
    padding: 80px 0;
    background: var(--card-bg);
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.review-card {
    padding: 24px;
    background: var(--dark-bg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.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) 0%, var(--secondary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 600;
    color: #fff;
}

.review-author h4 {
    font-size: 1rem;
    margin-bottom: 2px;
}

.review-author span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.review-rating {
    display: flex;
    gap: 4px;
    margin-bottom: 12px;
}

.star {
    color: var(--warning-color);
    font-size: 1rem;
}

.review-content {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

.review-date {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* 负责任体育区域 */
.responsible-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #1a1a2e 0%, var(--dark-bg) 100%);
}

.responsible-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.responsible-content h2 {
    font-size: 1.75rem;
    margin-bottom: 20px;
}

.responsible-content p {
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 24px;
}

.responsible-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
}

.responsible-links a {
    padding: 10px 20px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--border-radius-sm);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.responsible-links a:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

/* 页脚 */
.site-footer {
    background: #050a15;
    padding: 60px 0 0;
    border-top: 1px solid var(--border-color);
}

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

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
}

.footer-brand {
    max-width: 300px;
}

.footer-brand .logo-wrap {
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.footer-column h4 {
    font-size: 1rem;
    margin-bottom: 16px;
    color: var(--text-primary);
}

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

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

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

.footer-social {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

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

.footer-social a:hover {
    background: var(--accent-color);
    color: #fff;
}

.footer-bottom {
    padding: 24px 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.footer-bottom p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

.footer-payment {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-top: 16px;
}

.footer-payment img {
    height: 28px;
    width: auto;
    opacity: 0.7;
}

.age-restriction {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: #c0392b;
    color: #fff;
    font-weight: 700;
    font-size: 1rem;
    border-radius: 50%;
    margin-top: 16px;
}

/* 内页样式 */
.page-header {
    padding: 60px 0;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--card-bg) 100%);
    text-align: center;
}

.page-title {
    font-size: 2rem;
    margin-bottom: 12px;
}

@media (min-width: 768px) {
    .page-title {
        font-size: 2.5rem;
    }
}

.page-desc {
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* 文章内容 */
.article-content {
    padding: 60px 0;
}

.article-body {
    max-width: 900px;
    margin: 0 auto;
}

.article-body h2 {
    font-size: 1.5rem;
    margin: 32px 0 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--primary-color);
}

.article-body h3 {
    font-size: 1.25rem;
    margin: 24px 0 12px;
    color: var(--secondary-color);
}

.article-body p {
    margin-bottom: 16px;
    line-height: 1.9;
    color: var(--text-secondary);
}

.article-body ul,
.article-body ol {
    margin: 16px 0;
    padding-left: 24px;
}

.article-body li {
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.article-body img {
    margin: 24px 0;
    border-radius: var(--border-radius-md);
}

/* 图片画廊 */
.image-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 24px 0;
}

@media (min-width: 768px) {
    .image-gallery {
        grid-template-columns: repeat(3, 1fr);
    }
}

.image-gallery img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius-md);
    margin: 0;
}

/* 标签页面 */
.tags-section {
    padding: 60px 0;
}

.tags-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.tag-item {
    padding: 10px 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    font-size: 0.9rem;
    transition: all var(--transition-fast);
}

.tag-item:hover {
    background: var(--primary-color);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

/* APP下载页面 */
.app-section {
    padding: 80px 0;
}

.app-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    align-items: center;
}

@media (min-width: 1024px) {
    .app-grid {
        grid-template-columns: 1fr 1fr;
    }
}

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

.app-preview img {
    max-width: 300px;
    margin: 0 auto;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 20px 60px var(--shadow-color);
}

.app-features {
    list-style: none;
}

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

.app-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: 700;
}

.download-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 24px;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 24px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    color: var(--text-primary);
    transition: all var(--transition-fast);
}

.download-btn:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: #fff;
}

/* 作者信息 */
.author-box {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 24px;
    background: var(--card-bg);
    border-radius: var(--border-radius-lg);
    margin: 40px 0;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
}

.author-info h4 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.author-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
}

/* 工具类 */
.text-center {
    text-align: center;
}

.mt-20 {
    margin-top: 20px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-40 {
    margin-top: 40px;
}

.mb-40 {
    margin-bottom: 40px;
}

/* 动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* 打印样式 */
@media print {
    .site-header,
    .site-footer,
    .cta-btn {
        display: none;
    }
    
    body {
        background: #fff;
        color: #000;
    }
}