/* 
 * 体育赛事比分直播网站 - 主样式表
 * 独特设计：渐变紫橙配色 + 卡片式布局 + 玻璃态效果
 * 移动端优先设计
 */

/* CSS变量定义 */
:root {
    --primary-gradient: linear-gradient(135deg, #6366f1 0%, #ec4899 50%, #f97316 100%);
    --secondary-gradient: linear-gradient(180deg, #1e1b4b 0%, #312e81 100%);
    --accent-color: #f97316;
    --accent-hover: #ea580c;
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --bg-dark: #0f0d1a;
    --bg-card: rgba(30, 27, 75, 0.85);
    --bg-glass: rgba(255, 255, 255, 0.08);
    --border-glass: rgba(255, 255, 255, 0.12);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --font-primary: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* 重置和基础样式 */
*, *::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-primary);
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 背景装饰 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse 80% 50% at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(236, 72, 153, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

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

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

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

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

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

/* 导航栏 - 非sticky */
.site-header {
    background: var(--secondary-gradient);
    border-bottom: 1px solid var(--border-glass);
    padding: 12px 0;
}

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

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

.logo-img {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-sm);
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

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

.main-nav {
    display: none;
    width: 100%;
    padding-top: 12px;
}

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

.nav-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-list a {
    display: block;
    padding: 10px 16px;
    color: var(--text-secondary);
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--text-primary);
    background: rgba(249, 115, 22, 0.2);
}

@media (min-width: 992px) {
    .nav-toggle {
        display: none;
    }
    
    .main-nav {
        display: block;
        width: auto;
        padding-top: 0;
    }
    
    .nav-list {
        flex-direction: row;
        gap: 4px;
    }
    
    .nav-list a {
        padding: 8px 14px;
        background: transparent;
    }
}

/* CTA按钮 */
.cta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    background: var(--primary-gradient);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.cta-btn-secondary {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
}

/* Hero区域 */
.hero-section {
    position: relative;
    padding: 48px 0 64px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    filter: blur(2px);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(249, 115, 22, 0.2);
    border: 1px solid var(--accent-color);
    border-radius: 50px;
    font-size: 0.85rem;
    color: var(--accent-color);
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 20px;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 640px;
    margin: 0 auto 32px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 48px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 576px) {
    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-item {
    text-align: center;
    padding: 20px 12px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.stat-number {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-color);
    display: block;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-top: 4px;
}

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

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

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

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

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

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

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

/* 区块标题 */
.section {
    padding: 64px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(99, 102, 241, 0.2);
    border-radius: 50px;
    font-size: 0.8rem;
    color: #818cf8;
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.25rem);
    font-weight: 700;
    margin-bottom: 12px;
}

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

/* 卡片网格 */
.card-grid {
    display: grid;
    gap: 24px;
}

.card-grid-2 {
    grid-template-columns: 1fr;
}

.card-grid-3 {
    grid-template-columns: 1fr;
}

.card-grid-4 {
    grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 576px) {
    .card-grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .card-grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .card-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .card-grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .card-grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* 赛事卡片 */
.match-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.match-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.match-card-img {
    position: relative;
    aspect-ratio: 16/10;
    overflow: hidden;
}

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

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

.match-card-live {
    position: absolute;
    top: 12px;
    left: 12px;
    padding: 4px 10px;
    background: #ef4444;
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.match-card-live::before {
    content: '';
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

.match-card-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.match-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 16px;
}

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

.match-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.match-score {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* 特色区块 */
.feature-box {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition-normal);
}

.feature-box:hover {
    border-color: var(--accent-color);
    box-shadow: 0 0 30px rgba(249, 115, 22, 0.15);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: var(--primary-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.feature-title {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* 用户评论 */
.review-card {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 28px;
}

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

.review-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--accent-color);
}

.review-info h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 4px;
}

.review-location {
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.star {
    color: #fbbf24;
    font-size: 1rem;
}

.star.empty {
    color: var(--text-muted);
}

.review-content {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 12px;
}

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

/* FAQ手风琴 */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px 24px;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition-fast);
}

.faq-question:hover {
    color: var(--accent-color);
}

.faq-icon {
    font-size: 1.25rem;
    transition: transform var(--transition-fast);
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-normal);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer-inner {
    padding: 0 24px 20px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* 支付方式 */
.payment-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.payment-item {
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    padding: 16px 24px;
    text-align: center;
    min-width: 120px;
}

.payment-item img {
    height: 32px;
    margin: 0 auto 8px;
}

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

/* 牌照区块 */
.license-section {
    background: var(--secondary-gradient);
    border-top: 1px solid var(--border-glass);
    border-bottom: 1px solid var(--border-glass);
}

.license-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 32px;
    text-align: center;
}

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

.license-badge {
    width: 160px;
    height: 160px;
    object-fit: contain;
}

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

.license-info p {
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.license-number {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(249, 115, 22, 0.2);
    border: 1px solid var(--accent-color);
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.9rem;
    color: var(--accent-color);
}

/* 页脚 */
.site-footer {
    background: var(--secondary-gradient);
    border-top: 1px solid var(--border-glass);
    padding: 64px 0 24px;
}

.footer-grid {
    display: grid;
    gap: 40px;
    margin-bottom: 48px;
}

@media (min-width: 576px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .footer-grid {
        grid-template-columns: 2fr repeat(3, 1fr);
    }
}

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

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    transition: var(--transition-fast);
}

.social-link:hover {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: var(--text-primary);
}

.footer-section h4 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 20px;
    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;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border-glass);
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    text-align: center;
}

@media (min-width: 768px) {
    .footer-bottom {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
}

.footer-legal {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
}

.footer-legal a {
    color: var(--text-muted);
    font-size: 0.85rem;
}

.age-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: #dc2626;
    color: white;
    font-weight: 700;
    font-size: 1rem;
    border-radius: 50%;
}

.copyright {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* 内容页样式 */
.content-section {
    padding: 48px 0;
}

.content-wrapper {
    max-width: 900px;
    margin: 0 auto;
}

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

.article-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.author-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    object-fit: cover;
}

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

.article-content {
    font-size: 1.05rem;
    line-height: 1.85;
}

.article-content h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 40px 0 20px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent-color);
}

.article-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 32px 0 16px;
    color: var(--accent-color);
}

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

.article-content ul,
.article-content ol {
    margin: 20px 0;
    padding-left: 24px;
    color: var(--text-secondary);
}

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

.article-content img {
    border-radius: var(--radius-md);
    margin: 32px 0;
}

.article-content blockquote {
    margin: 32px 0;
    padding: 24px;
    background: var(--bg-glass);
    border-left: 4px solid var(--accent-color);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    font-style: italic;
    color: var(--text-secondary);
}

/* 标签页面 */
.tags-section {
    padding: 48px 0;
}

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

.tag-link {
    display: inline-block;
    padding: 10px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: 50px;
    color: var(--text-secondary);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

/* APP下载页 */
.app-section {
    padding: 64px 0;
    text-align: center;
}

.app-mockup {
    max-width: 100%;
    border-radius: var(--radius-xl);
    margin: 40px auto;
    box-shadow: var(--shadow-card);
}

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

.app-btn {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 14px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    transition: var(--transition-fast);
}

.app-btn:hover {
    border-color: var(--accent-color);
    background: rgba(249, 115, 22, 0.1);
}

.app-btn-icon {
    font-size: 2rem;
}

.app-btn-text {
    text-align: left;
}

.app-btn-text small {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.app-btn-text strong {
    font-size: 1.1rem;
}

/* 响应式工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-4 { margin-top: 16px; }
.mt-8 { margin-top: 32px; }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: 16px; }
.mb-8 { margin-bottom: 32px; }

.hidden { display: none; }

@media (max-width: 767px) {
    .hide-mobile { display: none; }
}

@media (min-width: 768px) {
    .hide-desktop { display: none; }
}

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

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

/* 懒加载图片占位 */
img[loading="lazy"] {
    background: var(--bg-glass);
}