/* 全局样式 */
:root {
    --primary-color: #1a73e8;
    --secondary-color: #ff3d00;
    --dark-color: #121212;
    --light-color: #f5f5f5;
    --accent-color: #00c853;
    --text-color: #333;
    --text-light: #666;
    --border-radius: 12px;
    --box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

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

/* 技术备注 */
.tech-note {
    position: fixed;
    top: 10px;
    right: 10px;
    background-color: var(--dark-color);
    color: white;
    padding: 8px 15px;
    border-radius: var(--border-radius);
    font-size: 12px;
    z-index: 1000;
    box-shadow: var(--box-shadow);
}

/* 导航栏 */
.header {
    background-color: white;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 999;
    transition: var(--transition);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
}

.logo img {
    height: 60px;
    transition: var(--transition);
}

.logo img:hover {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 25px;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 600;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition);
}

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

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

.mobile-menu-toggle {
    display: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--primary-color);
    transition: var(--transition);
}

.mobile-menu-toggle:hover {
    transform: rotate(90deg);
}

/* 英雄区 */
.hero {
    background: linear-gradient(135deg, #1a2a6c, #b21f1f, #fdbb2d);
    color: white;
    padding: 100px 0;
    position: relative;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
}

.hero-text h1 {
    font-size: 56px;
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: 700;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-text p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.hero-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

/* 按钮样式 */
.btn-primary {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: 15px 35px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 8px rgba(255, 61, 0, 0.3);
}

.btn-primary:hover {
    background-color: #e63600;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(255, 61, 0, 0.4);
}

.btn-secondary {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 15px 35px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid var(--primary-color);
    cursor: pointer;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 6px 12px rgba(26, 115, 232, 0.3);
}

/* 通用部分样式 */
section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 40px;
    margin-bottom: 50px;
    color: var(--dark-color);
    position: relative;
    font-weight: 700;
}

.section-title::after {
    content: '';
    display: block;
    width: 120px;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
    margin: 15px auto;
    border-radius: 2px;
}

.sub-section-title {
    font-size: 28px;
    margin-bottom: 30px;
    color: var(--dark-color);
    font-weight: 600;
}

/* 比赛预览 */
.match-preview {
    background-color: white;
    position: relative;
}

.match-preview::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color));
}

.match-preview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.match-card {
    background-color: var(--light-color);
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid #e0e0e0;
}

.match-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.match-league {
    background-color: var(--primary-color);
    color: white;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    margin-bottom: 20px;
    display: inline-block;
    font-weight: 600;
}

.match-teams {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 25px;
    padding: 20px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.team-name {
    font-weight: 700;
    font-size: 20px;
}

.match-time {
    font-size: 18px;
    font-weight: 600;
    color: var(--secondary-color);
    background-color: rgba(255, 61, 0, 0.1);
    padding: 5px 15px;
    border-radius: 20px;
}

/* 足球直播 - 开服表风格 */
.football-live {
    background-color: #f8f9fa;
}

.server-style-table {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: 50px;
    overflow: hidden;
    border: 1px solid #e0e0e0;
}

.table-header {
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
    color: white;
    padding: 25px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-title {
    font-size: 24px;
    font-weight: 700;
}

.table-date {
    font-size: 16px;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 5px 15px;
    border-radius: 20px;
}

.table-content {
    padding: 0;
}

.table-row {
    display: flex;
    border-bottom: 1px solid #e0e0e0;
    transition: var(--transition);
    background-color: white;
}

.table-row:hover {
    background-color: #f8f9fa;
    transform: translateX(5px);
}

.table-cell {
    padding: 20px;
    flex: 1;
    text-align: center;
    font-weight: 500;
}

.table-cell.league {
    flex: 0.5;
    font-weight: 700;
    color: var(--primary-color);
    background-color: rgba(26, 115, 232, 0.1);
    border-right: 1px solid #e0e0e0;
}

.table-cell.match {
    flex: 2;
    text-align: left;
    font-weight: 600;
}

.table-cell.time {
    flex: 0.8;
    color: var(--text-light);
}

.table-cell.status {
    flex: 0.8;
}

.live-badge {
    background-color: #ff3d00;
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    animation: pulse 2s infinite;
}

.upcoming-badge {
    background-color: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.btn-watch {
    background-color: var(--primary-color);
    color: white;
    padding: 8px 20px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.btn-watch:hover {
    background-color: #1557b0;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(26, 115, 232, 0.3);
}

/* 其他联赛 */
.other-leagues {
    margin-top: 50px;
}

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

.league-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.league-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.league-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 20px;
    text-align: center;
}

.league-name {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: var(--dark-color);
}

.match-item {
    display: flex;
    justify-content: space-between;
    padding: 15px 0;
    border-bottom: 1px solid #e0e0e0;
    align-items: center;
}

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

.match-item .match-time {
    font-size: 14px;
    padding: 3px 10px;
}

/* NBA直播 */
.nba-live {
    background-color: white;
    position: relative;
}

.nba-live::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, #17408b, #c8102e);
}

.nba-games {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.nba-game-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
    border: 1px solid #e0e0e0;
}

.nba-game-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: #17408b;
}

.game-info {
    margin-bottom: 25px;
}

.game-league {
    background-color: #17408b;
    color: white;
    padding: 8px 16px;
    border-radius: var(--border-radius);
    font-size: 14px;
    margin-bottom: 20px;
    display: inline-block;
    font-weight: 600;
}

.game-teams {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding: 20px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.vs {
    font-weight: 700;
    color: #c8102e;
    font-size: 18px;
}

/* 直播回放 */
.live-replay {
    background-color: #f8f9fa;
}

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

.replay-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.replay-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.replay-thumbnail {
    position: relative;
    overflow: hidden;
    height: 200px;
}

.replay-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.replay-card:hover .replay-thumbnail img {
    transform: scale(1.1);
}

.play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: rgba(26, 115, 232, 0.8);
    color: white;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    transition: var(--transition);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.play-btn:hover {
    background-color: var(--primary-color);
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.4);
}

.replay-info {
    padding: 20px;
}

.replay-info h3 {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
}

.replay-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-light);
    align-items: center;
}

.view-count {
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 体育新闻 */
.sports-news {
    background-color: white;
    position: relative;
}

.sports-news::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--primary-color), var(--accent-color));
}

.news-tabs {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    background-color: #f8f9fa;
    border: 1px solid #e0e0e0;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-color);
}

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

.tab-btn:hover {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-2px);
}

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

.news-card {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.news-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.news-image {
    height: 200px;
    overflow: hidden;
}

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

.news-card:hover .news-image img {
    transform: scale(1.1);
}

.news-content {
    padding: 20px;
}

.news-content h3 {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
}

.news-content p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.6;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    align-items: center;
}

.news-meta .category {
    background-color: var(--primary-color);
    color: white;
    padding: 3px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.news-meta .date {
    color: var(--text-light);
}

/* 比赛分析 */
.match-analysis {
    background-color: #f8f9fa;
}

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

.analysis-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.analysis-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.analysis-card h3 {
    margin-bottom: 20px;
    font-size: 20px;
    color: var(--primary-color);
    font-weight: 600;
}

.analysis-card p {
    margin-bottom: 25px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 转会市场 */
.transfer-market {
    background-color: white;
    position: relative;
}

.transfer-market::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, #667eea, #764ba2);
}

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

.transfer-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    text-align: center;
}

.transfer-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.player-info h3 {
    font-size: 32px;
    margin-bottom: 15px;
    font-weight: 700;
}

.player-info p {
    margin-bottom: 20px;
    font-size: 18px;
    opacity: 0.9;
}

.transfer-fee {
    font-size: 20px;
    font-weight: 700;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    display: inline-block;
}

/* 赛事预测 */
.predictions {
    background-color: #f8f9fa;
}

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

.prediction-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.prediction-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.prediction-match {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: var(--dark-color);
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.prediction-expert {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
}

.expert-label {
    background-color: var(--accent-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
}

.prediction-result {
    font-weight: 700;
    color: var(--primary-color);
    font-size: 18px;
}

.prediction-stats {
    display: flex;
    justify-content: space-around;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
}

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

.stat-item span:first-child {
    display: block;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.stat-item span:last-child {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

/* 精彩集锦 */
.highlights {
    background-color: white;
    position: relative;
}

.highlights::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--secondary-color), var(--primary-color));
}

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

.highlight-card {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.highlight-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.highlight-thumbnail {
    position: relative;
    overflow: hidden;
    height: 180px;
}

.highlight-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.highlight-card:hover .highlight-thumbnail img {
    transform: scale(1.1);
}

.highlight-card h3 {
    padding: 20px;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark-color);
    text-align: center;
}

/* 数据统计 */
.data-stats {
    background-color: #f8f9fa;
}

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

.stat-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.stat-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.stat-card h3 {
    margin-bottom: 25px;
    font-size: 24px;
    text-align: center;
    color: var(--primary-color);
    font-weight: 700;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.stat-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.stat-item:hover {
    background-color: rgba(26, 115, 232, 0.1);
    transform: translateX(5px);
}

.rank {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
}

.player {
    flex: 1;
    font-weight: 600;
    color: var(--dark-color);
}

.team {
    flex: 1;
    color: var(--text-light);
    font-size: 14px;
}

.goals, .points {
    font-weight: 700;
    color: var(--secondary-color);
    font-size: 18px;
}

/* 体育商城 */
.sports-store {
    background-color: white;
    position: relative;
}

.sports-store::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--accent-color), var(--primary-color));
}

.store-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.store-card {
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.store-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.store-image {
    height: 220px;
    overflow: hidden;
}

.store-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.store-card:hover .store-image img {
    transform: scale(1.1);
}

.store-info {
    padding: 20px;
    text-align: center;
}

.store-info h3 {
    margin-bottom: 15px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
}

.store-price {
    font-size: 24px;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 20px;
}

/* 足彩预测 */
.football-betting {
    background-color: #f8f9fa;
}

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

.betting-card {
    background-color: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border: 1px solid #e0e0e0;
}

.betting-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.betting-match {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
    color: var(--dark-color);
    padding-bottom: 15px;
    border-bottom: 1px solid #e0e0e0;
}

.betting-odds {
    display: flex;
    justify-content: space-around;
    margin-bottom: 25px;
    padding: 20px;
    background-color: #f8f9fa;
    border-radius: var(--border-radius);
}

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

.odd-item span:first-child {
    display: block;
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 10px;
}

.odd-item span:last-child {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

/* 球迷社区 */
.fan-community {
    background-color: white;
    position: relative;
}

.fan-community::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
}

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

.community-card {
    background-color: #f8f9fa;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 25px;
    border: 1px solid #e0e0e0;
}

.community-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-color: var(--primary-color);
}

.community-avatar img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--primary-color);
    transition: var(--transition);
}

.community-card:hover .community-avatar img {
    transform: scale(1.1);
    border-color: var(--secondary-color);
}

.community-content h3 {
    margin-bottom: 15px;
    font-size: 20px;
    font-weight: 600;
    color: var(--dark-color);
}

.community-content p {
    margin-bottom: 20px;
    color: var(--text-light);
    line-height: 1.6;
}

/* 页脚 */
.footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(to right, var(--primary-color), var(--secondary-color), var(--accent-color));
}

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

.footer-info h3 {
    margin-bottom: 20px;
    font-size: 24px;
    font-weight: 700;
    color: white;
}

.footer-info p {
    color: #ccc;
    line-height: 1.6;
}

.footer-links h4 {
    margin-bottom: 20px;
    font-size: 18px;
    font-weight: 600;
    color: white;
    position: relative;
    padding-bottom: 10px;
}

.footer-links h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--primary-color);
}

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

.footer-links ul li {
    margin-bottom: 15px;
}

.footer-links ul li a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    position: relative;
    padding-left: 20px;
}

.footer-links ul li a::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--primary-color);
    transition: var(--transition);
}

.footer-links ul li a:hover {
    color: white;
    padding-left: 25px;
}

.footer-links ul li a:hover::before {
    left: 5px;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-flink h4 {
    margin-bottom: 15px;
    font-size: 16px;
    font-weight: 600;
    color: white;
}

.flink-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.flink-list a {
    color: #ccc;
    text-decoration: none;
    padding: 8px 16px;
    background-color: #333;
    border-radius: var(--border-radius);
    transition: var(--transition);
    font-size: 14px;
}

.flink-list a:hover {
    color: white;
    background-color: var(--primary-color);
    transform: translateY(-2px);
}

.footer-copyright {
    text-align: center;
    font-size: 14px;
    color: #999;
    padding-top: 20px;
    border-top: 1px solid #333;
}

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

.footer-copyright a:hover {
    color: white;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    background-color: var(--primary-color);
    color: white;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    cursor: pointer;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 999;
    border: none;
}

.back-to-top.active {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* 动画 */
@keyframes pulse {
    0% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.7;
        transform: scale(1.05);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* 响应式设计 */
@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 40px;
    }
    
    .hero-text p {
        font-size: 18px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: white;
        padding: 20px;
        box-shadow: var(--box-shadow);
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .table-row {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
    }
    
    .table-cell {
        width: 100%;
        text-align: left;
        padding: 10px 0;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .table-cell:last-child {
        border-bottom: none;
    }
    
    .table-cell.league {
        border-right: none;
        border-bottom: 1px solid #e0e0e0;
    }
    
    .community-card {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-links h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-links ul li a {
        padding-left: 0;
    }
    
    .footer-links ul li a::before {
        display: none;
    }
    
    .footer-links ul li a:hover {
        padding-left: 0;
    }
    
    .flink-list {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .section-title {
        font-size: 32px;
    }
    
    .hero-text h1 {
        font-size: 32px;
    }
    
    .hero-text p {
        font-size: 16px;
    }
    
    .match-teams {
        flex-direction: column;
        gap: 15px;
    }
    
    .game-teams {
        flex-direction: column;
        gap: 15px;
    }
    
    .prediction-stats {
        flex-direction: column;
        gap: 15px;
    }
    
    .betting-odds {
        flex-direction: column;
        gap: 15px;
    }
    
    .stat-item {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }
    
    .back-to-top {
        width: 50px;
        height: 50px;
        font-size: 20px;
        bottom: 20px;
        right: 20px;
    }
}