/* 
 * 体育竞猜网站样式表
 * 独特配色方案：深蓝渐变 + 金色点缀 + 翠绿高亮
 * 移动端优先响应式设计
 */

:root {
    --primary-dark: #0a1628;
    --primary-mid: #142850;
    --primary-light: #1e3a5f;
    --accent-gold: #ffd700;
    --accent-green: #00d084;
    --accent-red: #ff4757;
    --text-white: #ffffff;
    --text-gray: #b8c5d6;
    --card-bg: rgba(30, 58, 95, 0.85);
    --gradient-main: linear-gradient(135deg, #0a1628 0%, #142850 50%, #1e3a5f 100%);
    --gradient-card: linear-gradient(180deg, rgba(30, 58, 95, 0.9) 0%, rgba(20, 40, 80, 0.95) 100%);
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(255, 215, 0, 0.3);
    --border-radius: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Hiragino Sans GB', sans-serif;
    background: var(--gradient-main);
    color: var(--text-white);
    line-height: 1.8;
    min-height: 100vh;
    overflow-x: hidden;
}

/* 导航栏 - 非sticky */
.site-header {
    background: linear-gradient(180deg, rgba(10, 22, 40, 0.98) 0%, rgba(20, 40, 80, 0.95) 100%);
    padding: 1rem 0;
    border-bottom: 2px solid var(--accent-gold);
    position: relative;
    z-index: 100;
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
}

.site-logo img {
    height: 50px;
    width: auto;
    border-radius: 8px;
}

.site-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-gold);
    text-shadow: 0 2px 10px rgba(255, 215, 0, 0.4);
}

.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.nav-link {
    color: var(--text-white);
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 25px;
    font-weight: 500;
    transition: var(--transition);
    background: transparent;
    border: 1px solid transparent;
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    background: var(--card-bg);
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    transform: translateY(-2px);
}

.cta-button {
    background: linear-gradient(135deg, var(--accent-gold) 0%, #ffb700 100%);
    color: var(--primary-dark);
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 700;
    text-decoration: none;
    transition: var(--transition);
    box-shadow: var(--shadow-glow);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: 2px solid var(--accent-gold);
    color: var(--accent-gold);
    padding: 0.5rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.5rem;
}

/* Hero区域 */
.hero-section {
    position: relative;
    min-height: 70vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 3rem 1.5rem;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    filter: blur(3px);
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
}

.hero-title {
    font-size: clamp(2rem, 6vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: linear-gradient(135deg, var(--text-white) 0%, var(--accent-gold) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: none;
    line-height: 1.3;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    color: var(--text-gray);
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

/* 面包屑导航 */
.breadcrumb {
    padding: 1rem 1.5rem;
    background: rgba(10, 22, 40, 0.8);
    border-bottom: 1px solid rgba(255, 215, 0, 0.2);
}

.breadcrumb-list {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    list-style: none;
    font-size: 0.9rem;
}

.breadcrumb-item a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
}

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

.breadcrumb-item.current {
    color: var(--accent-gold);
}

.breadcrumb-separator {
    color: var(--text-gray);
    margin: 0 0.25rem;
}

/* 主要内容区域 */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

/* 区块标题 */
.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-title {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-green));
    border-radius: 2px;
}

.section-desc {
    color: var(--text-gray);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 0 auto;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.feature-card {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 215, 0, 0.15);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-gold), var(--accent-green));
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-soft);
    border-color: var(--accent-gold);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), #ffb700);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.card-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 1rem;
}

.card-text {
    color: var(--text-gray);
    line-height: 1.7;
}

/* 体育卡片 */
.sports-card {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    overflow: hidden;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: var(--transition);
}

.sports-card:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-soft);
}

.sports-card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.sports-card-body {
    padding: 1.5rem;
}

.sports-card-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 0.75rem;
}

.sports-card-desc {
    color: var(--text-gray);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.sports-card-link {
    color: var(--accent-green);
    text-decoration: none;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition);
}

.sports-card-link:hover {
    color: var(--accent-gold);
    gap: 0.75rem;
}

/* 赔率表格 */
.odds-table-wrapper {
    overflow-x: auto;
    margin: 2rem 0;
    border-radius: var(--border-radius);
    background: var(--card-bg);
    border: 1px solid rgba(255, 215, 0, 0.15);
}

.odds-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.odds-table th,
.odds-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.odds-table th {
    background: rgba(255, 215, 0, 0.1);
    color: var(--accent-gold);
    font-weight: 600;
}

.odds-table tr:hover {
    background: rgba(255, 215, 0, 0.05);
}

.odds-value {
    color: var(--accent-green);
    font-weight: 600;
}

/* FAQ区域 */
.faq-section {
    margin: 4rem 0;
}

.faq-item {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 215, 0, 0.1);
    overflow: hidden;
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    color: var(--text-white);
    transition: var(--transition);
}

.faq-question:hover {
    background: rgba(255, 215, 0, 0.05);
}

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

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-gray);
    line-height: 1.8;
    display: block;
}

/* 评论区域 */
.reviews-section {
    margin: 4rem 0;
}

.review-card {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    border: 1px solid rgba(255, 215, 0, 0.1);
    margin-bottom: 1.5rem;
}

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.reviewer-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-green));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary-dark);
}

.reviewer-name {
    font-weight: 600;
    color: var(--text-white);
}

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

.review-rating {
    display: flex;
    gap: 0.25rem;
}

.star {
    color: var(--accent-gold);
    font-size: 1.1rem;
}

.star.empty {
    color: rgba(255, 215, 0, 0.3);
}

.review-content {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.review-date {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

/* 支付方式 */
.payment-section {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin: 3rem 0;
    border: 1px solid rgba(255, 215, 0, 0.15);
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.payment-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

.payment-item:hover {
    border-color: var(--accent-gold);
    transform: translateY(-3px);
}

.payment-item img {
    max-width: 80px;
    height: auto;
    margin-bottom: 0.75rem;
}

.payment-name {
    font-size: 0.9rem;
    color: var(--text-gray);
}

/* 牌照区域 */
.license-section {
    background: linear-gradient(135deg, rgba(0, 208, 132, 0.1) 0%, rgba(255, 215, 0, 0.1) 100%);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin: 3rem 0;
    border: 2px solid rgba(0, 208, 132, 0.3);
    text-align: center;
}

.license-badge {
    max-width: 150px;
    margin: 1.5rem auto;
    display: block;
}

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

.license-number {
    font-family: monospace;
    color: var(--accent-gold);
    font-size: 1.1rem;
    margin: 1rem 0;
}

/* 客服区域 */
.support-section {
    margin: 4rem 0;
}

.support-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.support-card {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    text-align: center;
    border: 1px solid rgba(255, 215, 0, 0.1);
    transition: var(--transition);
}

.support-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-5px);
}

.support-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-green), #00b074);
    display: flex;
    align-items: center;
    justify-content: center;
}

.support-icon img {
    width: 35px;
    height: 35px;
    filter: brightness(0) invert(1);
}

.support-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-white);
    margin-bottom: 0.75rem;
}

.support-desc {
    color: var(--text-gray);
    font-size: 0.95rem;
}

/* 作者信息 */
.author-box {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin: 3rem 0;
    border-left: 4px solid var(--accent-gold);
    display: flex;
    gap: 1.5rem;
    align-items: flex-start;
    flex-wrap: wrap;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-green));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-dark);
    flex-shrink: 0;
}

.author-info {
    flex: 1;
    min-width: 200px;
}

.author-name {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--accent-gold);
    margin-bottom: 0.5rem;
}

.author-title {
    color: var(--accent-green);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.author-bio {
    color: var(--text-gray);
    line-height: 1.7;
}

/* 页脚 */
.site-footer {
    background: linear-gradient(180deg, var(--primary-mid) 0%, var(--primary-dark) 100%);
    padding: 4rem 1.5rem 2rem;
    border-top: 2px solid var(--accent-gold);
    margin-top: 4rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h4 {
    color: var(--accent-gold);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
}

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

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: var(--text-gray);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--accent-gold);
    padding-left: 5px;
}

.footer-social {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.footer-disclaimer {
    color: var(--text-gray);
    font-size: 0.85rem;
    line-height: 1.7;
    margin-bottom: 1.5rem;
}

.footer-badges {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.age-badge {
    width: 60px;
    height: 60px;
}

.footer-copyright {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.85rem;
}

/* 内容文章样式 */
.article-content {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 2.5rem;
    margin: 2rem 0;
    border: 1px solid rgba(255, 215, 0, 0.1);
}

.article-content h2 {
    color: var(--accent-gold);
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgba(255, 215, 0, 0.2);
}

.article-content h3 {
    color: var(--text-white);
    font-size: 1.25rem;
    margin: 1.5rem 0 1rem;
}

.article-content p {
    color: var(--text-gray);
    margin-bottom: 1.5rem;
    text-align: justify;
}

.article-content ul,
.article-content ol {
    color: var(--text-gray);
    margin: 1rem 0 1.5rem 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin: 1.5rem 0;
}

/* APP下载页面 */
.app-download-section {
    text-align: center;
    padding: 3rem 0;
}

.app-preview {
    max-width: 300px;
    margin: 2rem auto;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
}

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
    margin: 2rem 0;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.download-btn.ios {
    background: linear-gradient(135deg, #333 0%, #000 100%);
    color: var(--text-white);
}

.download-btn.android {
    background: linear-gradient(135deg, #00d084 0%, #00b074 100%);
    color: var(--text-white);
}

.download-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-soft);
}

.app-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin: 3rem 0;
}

.app-feature {
    background: var(--gradient-card);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    text-align: center;
}

.app-feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.app-feature-title {
    color: var(--text-white);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.app-feature-desc {
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* 响应式设计 */
@media screen and (max-width: 992px) {
    .nav-container {
        flex-direction: column;
    }
    
    .main-nav {
        width: 100%;
        justify-content: center;
    }
    
    .hero-section {
        min-height: 60vh;
    }
}

@media screen and (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        background: var(--primary-dark);
        padding: 1rem;
        border-radius: var(--border-radius);
        margin-top: 1rem;
    }
    
    .main-nav.active {
        display: flex;
    }
    
    .nav-link {
        width: 100%;
        text-align: center;
    }
    
    .hero-section {
        min-height: 50vh;
        padding: 2rem 1rem;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
    
    .author-box {
        flex-direction: column;
        text-align: center;
    }
    
    .author-avatar {
        margin: 0 auto;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-section h4::after {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .footer-social {
        justify-content: center;
    }
}

@media screen and (max-width: 480px) {
    .main-content {
        padding: 2rem 1rem;
    }
    
    .feature-card,
    .article-content {
        padding: 1.5rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .download-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* 图片懒加载动画 */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.3s ease-in;
}

img[loading="lazy"].loaded,
img[loading="lazy"]:not([src=""]) {
    opacity: 1;
}

/* 打印样式 */
@media print {
    .site-header,
    .site-footer,
    .cta-button {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .article-content {
        border: 1px solid #ccc;
    }
}