/* 全局样式重置和基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --accent-color: #4895ef;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --success-color: #4cc9f0;
    --warning-color: #f72585;
    --football-color: #4895ef;
    --basketball-color: #4361ee;
    --background-gradient: linear-gradient(135deg, #4361ee 0%, #3f37c9 100%);
    --card-gradient: linear-gradient(145deg, #ffffff 0%, #f8f9fa 100%);
    --text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-color);
    background-color: #f0f2f5;
    overflow-x: hidden;
}

/* 技术备注 */
.technical-note {
    position: fixed;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

/* 导航栏 */
header {
    background: var(--background-gradient);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    position: sticky;
    top: 0;
    z-index: 999;
    transition: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
    margin-right: 10px;
    border-radius: 50%;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.logo h1 {
    color: white;
    font-size: 20px;
    font-weight: 700;
    text-shadow: var(--text-shadow);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
}

.nav-menu li a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 15px;
    border-radius: 20px;
    transition: var(--transition);
    white-space: nowrap;
}

.nav-menu li a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
}

/* 英雄区域 */
.hero {
    background: var(--background-gradient);
    color: white;
    padding: 60px 20px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSI2MCIgaGVpZ2h0PSI2MCIgdmlld0JveD0iMCAwIDYwIDYwIj48cGF0aCBkPSJNMzAgMzBjNS41IDIuNSAxMCA1IDEwIDguMyAwIDMuMy00LjUgNi0xMCA2cy0xMC0yLjctMTAtNiAwLTMuMyA0LjUtNiAxMC02czEwIDIuNyAxMCA2em0tNS01YzMuMyAwIDYtMi43IDYtNnMtMi43LTYtNi02LTYgMi43LTYgNiAyLjcgNiA2IDZ6Ii8+PC9zdmc+') repeat;
    opacity: 0.1;
    animation: float 20s linear infinite;
}

@keyframes float {
    0% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
    100% { transform: translateY(0); }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.hero h2 {
    font-size: 36px;
    margin-bottom: 20px;
    font-weight: 700;
    text-shadow: var(--text-shadow);
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: var(--box-shadow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
}

/* 主要内容容器 */
.container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    margin-bottom: 40px;
    position: relative;
}

.section-title h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 10px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* 开服表风格的对阵表 */
.server-style-table {
    background: white;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: 20px;
    margin-bottom: 30px;
    overflow: hidden;
    position: relative;
}

.server-style-table::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f0f0f0;
}

.table-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dark-color);
    display: flex;
    align-items: center;
}

.table-header h3 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.league-tab {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 5px;
    display: flex;
}

.league-tab button {
    background: none;
    border: none;
    padding: 8px 16px;
    border-radius: 18px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.league-tab button.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 2px 10px rgba(67, 97, 238, 0.3);
}

.match-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.match-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    transition: var(--transition);
    border-left: 4px solid var(--primary-color);
}

.match-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.match-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.team-logo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    background: white;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.team-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-names {
    display: flex;
    flex-direction: column;
}

.team-name {
    font-weight: 500;
    font-size: 14px;
}

.match-time {
    font-size: 12px;
    color: var(--gray-color);
    margin-top: 4px;
}

.match-status {
    background: var(--success-color);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
}

.match-status.live {
    background: var(--warning-color);
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.7; }
    100% { opacity: 1; }
}

/* 直播回放区域 */
.live-replay {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.replay-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.replay-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

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

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

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

.play-button {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.play-button i {
    color: var(--primary-color);
    font-size: 24px;
    margin-left: 5px;
}

.replay-card:hover .play-button {
    transform: translate(-50%, -50%) scale(1.1);
    background: white;
}

.replay-info {
    padding: 15px;
}

.replay-title {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 16px;
    color: var(--dark-color);
}

.replay-meta {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--gray-color);
}

/* 新闻区域 */
.news-section {
    margin-bottom: 40px;
}

.news-tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
    gap: 10px;
}

.news-tab {
    background: #f8f9fa;
    border: 1px solid #e9ecef;
    border-radius: 20px;
    padding: 8px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.news-tab.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 2px 10px rgba(67, 97, 238, 0.3);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 25px;
}

.news-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

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

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

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

.news-content {
    padding: 20px;
}

.news-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.news-excerpt {
    font-size: 14px;
    color: var(--gray-color);
    margin-bottom: 15px;
    line-height: 1.5;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--gray-color);
}

.news-category {
    background: var(--primary-color);
    color: white;
    padding: 3px 8px;
    border-radius: 10px;
    font-size: 10px;
    font-weight: 500;
}

/* 特色功能区域 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.feature-card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 24px;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: var(--secondary-color);
}

.feature-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.feature-description {
    font-size: 14px;
    color: var(--gray-color);
    line-height: 1.5;
}

/* 赔率分析区域 */
.odds-analysis {
    background: white;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: 25px;
    margin-bottom: 40px;
}

.odds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.odds-card {
    background: #f8f9fa;
    border-radius: 8px;
    padding: 15px;
    border-left: 4px solid var(--primary-color);
}

.odds-match {
    font-weight: 600;
    margin-bottom: 10px;
    font-size: 14px;
}

.odds-values {
    display: flex;
    justify-content: space-between;
    margin-top: 10px;
}

.odd-value {
    text-align: center;
    padding: 8px;
    border-radius: 4px;
    font-weight: 500;
}

.odd-home {
    background: var(--success-color);
    color: white;
}

.odd-draw {
    background: var(--warning-color);
    color: white;
}

.odd-away {
    background: var(--accent-color);
    color: white;
}

/* 球迷社区区域 */
.fan-community {
    background: var(--background-gradient);
    color: white;
    border-radius: 10px;
    box-shadow: var(--box-shadow);
    padding: 30px;
    margin-bottom: 40px;
    text-align: center;
}

.fan-community h3 {
    font-size: 24px;
    margin-bottom: 20px;
}

.fan-community p {
    margin-bottom: 30px;
    opacity: 0.9;
}

.community-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 12px 30px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.community-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

/* 体育商店区域 */
.sports-store {
    margin-bottom: 40px;
}

.store-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.store-card {
    background: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.store-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.store-image {
    height: 180px;
    overflow: hidden;
}

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

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

.store-info {
    padding: 15px;
}

.store-name {
    font-weight: 600;
    margin-bottom: 10px;
}

.store-price {
    font-weight: 700;
    color: var(--warning-color);
    margin-bottom: 10px;
}

.store-button {
    display: block;
    background: var(--primary-color);
    color: white;
    text-align: center;
    padding: 8px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.store-button:hover {
    background: var(--secondary-color);
}

/* 页脚 */
footer {
    background: var(--dark-color);
    color: white;
    padding: 40px 20px;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.footer-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--accent-color);
}

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

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

.footer-section ul li a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: white;
    padding-left: 5px;
}

.footer-bottom {
    border-top: 1px solid #343a40;
    margin-top: 30px;
    padding-top: 20px;
    text-align: center;
    color: #6c757d;
}

.footer-bottom a {
    color: var(--accent-color);
    text-decoration: none;
}

.footer-bottom a:hover {
    text-decoration: underline;
}

/* 返回顶部按钮 */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--secondary-color);
    transform: translateY(-5px);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        align-items: center;
        padding: 20px 0;
        gap: 10px;
        box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .mobile-menu-btn {
        display: block;
    }

    .hero h2 {
        font-size: 28px;
    }

    .hero p {
        font-size: 16px;
    }

    .news-grid {
        grid-template-columns: 1fr;
    }

    .live-replay {
        grid-template-columns: 1fr;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }

    .odds-grid {
        grid-template-columns: 1fr;
    }

    .store-grid {
        grid-template-columns: 1fr;
    }

    .footer-container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .match-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .match-info {
        width: 100%;
        justify-content: space-between;
    }

    .table-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .league-tab {
        width: 100%;
        justify-content: space-between;
    }

    .league-tab button {
        flex: 1;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero h2 {
        font-size: 24px;
    }

    .hero p {
        font-size: 14px;
    }

    .cta-button {
        padding: 10px 20px;
        font-size: 14px;
    }

    .section-title h2 {
        font-size: 24px;
    }

    .server-style-table {
        padding: 15px;
    }

    .match-item {
        padding: 10px;
    }

    .team-logo {
        width: 30px;
        height: 30px;
    }

    .team-name {
        font-size: 12px;
    }

    .match-time {
        font-size: 10px;
    }

    .match-status {
        padding: 4px 8px;
        font-size: 10px;
    }

    .replay-thumbnail {
        height: 150px;
    }

    .news-thumbnail {
        height: 150px;
    }

    .news-content {
        padding: 15px;
    }

    .news-title {
        font-size: 16px;
    }

    .feature-card {
        padding: 20px;
    }

    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 20px;
    }

    .feature-title {
        font-size: 16px;
    }

    .odds-analysis {
        padding: 20px;
    }

    .fan-community {
        padding: 20px;
    }

    .fan-community h3 {
        font-size: 20px;
    }

    .community-button {
        padding: 10px 20px;
        font-size: 14px;
    }

    .store-image {
        height: 150px;
    }

    .footer-section h3 {
        font-size: 16px;
    }

    .back-to-top {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* 卡片悬停效果增强 */
.card-hover {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-hover:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

/* 按钮样式增强 */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.3);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(67, 97, 238, 0.3);
}