/* 
 * c7娱乐 - 豪华在线娱乐平台
 * 主样式表 - 2026年SEO优化版本
 * 独特配色方案：深紫色 + 金色 + 渐变效果
 */

/* CSS变量定义 */
:root {
    --primary-gold: #D4AF37;
    --primary-purple: #2D1B4E;
    --secondary-purple: #4A2C7A;
    --accent-gold: #FFD700;
    --dark-bg: #0F0A1A;
    --card-bg: #1A1028;
    --text-light: #F5F5F5;
    --text-muted: #B8B8B8;
    --success-green: #28A745;
    --warning-red: #DC3545;
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #FFD700 50%, #D4AF37 100%);
    --gradient-purple: linear-gradient(180deg, #2D1B4E 0%, #0F0A1A 100%);
    --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
    --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.4);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

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

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

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

a:hover {
    color: var(--accent-gold);
    text-decoration: underline;
}

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

/* 容器 */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.container-fluid {
    width: 100%;
    padding: 0 20px;
}

/* 头部导航 - 非sticky */
.site-header {
    background: linear-gradient(180deg, rgba(45, 27, 78, 0.98) 0%, rgba(15, 10, 26, 0.95) 100%);
    padding: 15px 0;
    border-bottom: 2px solid var(--primary-gold);
    position: relative;
    z-index: 100;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.logo-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* 主导航 */
.main-nav {
    display: flex;
    align-items: center;
}

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

.nav-list li a {
    display: block;
    padding: 10px 18px;
    color: var(--text-light);
    font-weight: 500;
    border-radius: 8px;
    transition: var(--transition);
}

.nav-list li a:hover,
.nav-list li a.active {
    background: rgba(212, 175, 55, 0.2);
    color: var(--accent-gold);
    text-decoration: none;
}

/* CTA按钮 */
.btn-cta {
    display: inline-block;
    padding: 14px 32px;
    background: var(--gradient-gold);
    color: var(--primary-purple);
    font-weight: 700;
    font-size: 1.1rem;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: var(--shadow-gold);
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.5);
    text-decoration: none;
    color: var(--primary-purple);
}

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

.btn-secondary:hover {
    background: var(--primary-gold);
    color: var(--primary-purple);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}

.mobile-menu-btn span {
    width: 28px;
    height: 3px;
    background: var(--primary-gold);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero区域 */
.hero-section {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 60px 0;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 20px;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 40px rgba(212, 175, 55, 0.3);
}

.hero-subtitle {
    font-size: 1.4rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    line-height: 1.8;
}

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

/* 面包屑导航 */
.breadcrumb {
    padding: 15px 0;
    background: rgba(26, 16, 40, 0.8);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumb-list li::after {
    content: '›';
    margin-left: 10px;
    color: var(--text-muted);
}

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

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

.breadcrumb-list li:last-child a,
.breadcrumb-list li:last-child span {
    color: var(--primary-gold);
}

/* 章节通用样式 */
.section {
    padding: 80px 0;
}

.section-alt {
    background: var(--card-bg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 20px;
    color: var(--primary-gold);
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* 游戏卡片网格 */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.game-card {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    overflow: hidden;
    transition: var(--transition);
    border: 1px solid rgba(212, 175, 55, 0.2);
    box-shadow: var(--shadow-card);
}

.game-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-gold);
    box-shadow: 0 12px 40px rgba(212, 175, 55, 0.2);
}

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

.game-card-content {
    padding: 25px;
}

.game-card-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--accent-gold);
}

.game-card-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
    line-height: 1.7;
}

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

.game-rtp {
    font-size: 0.9rem;
    color: var(--success-green);
    font-weight: 600;
}

/* 特色区块 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.feature-box {
    background: linear-gradient(145deg, var(--card-bg) 0%, rgba(74, 44, 122, 0.3) 100%);
    padding: 40px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(212, 175, 55, 0.15);
    transition: var(--transition);
}

.feature-box:hover {
    border-color: var(--primary-gold);
    transform: translateY(-5px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--accent-gold);
}

.feature-desc {
    color: var(--text-muted);
    line-height: 1.7;
}

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

.payment-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
}

.payment-item {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px 30px;
    border-radius: var(--border-radius);
    text-align: center;
    min-width: 150px;
}

.payment-item img {
    height: 40px;
    margin: 0 auto 10px;
}

.payment-item span {
    display: block;
    font-size: 0.9rem;
    color: var(--text-muted);
}

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

.faq-list {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(212, 175, 55, 0.15);
    overflow: hidden;
}

.faq-question {
    padding: 25px 30px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-light);
    transition: var(--transition);
}

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

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    color: var(--primary-gold);
    transition: var(--transition);
}

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

.faq-answer {
    padding: 0 30px;
    max-height: 0;
    overflow: hidden;
    transition: all 0.4s ease;
}

.faq-item.active .faq-answer {
    padding: 0 30px 25px;
    max-height: 500px;
}

.faq-answer p {
    color: var(--text-muted);
    line-height: 1.8;
}

/* 评论区块 */
.reviews-section {
    background: linear-gradient(180deg, var(--primary-purple) 0%, var(--dark-bg) 100%);
    padding: 80px 0;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
}

.review-card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    border-left: 4px solid var(--primary-gold);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.review-info h4 {
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.review-info span {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.review-stars {
    color: var(--accent-gold);
    font-size: 1.2rem;
    margin-bottom: 15px;
}

.review-text {
    color: var(--text-muted);
    line-height: 1.8;
    font-style: italic;
}

.review-date {
    margin-top: 15px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

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

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-content h2 {
    font-size: 2.2rem;
    color: var(--primary-gold);
    margin-bottom: 25px;
}

.about-content p {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.9;
}

.about-image img {
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-card);
}

/* 牌照区块 */
.license-section {
    background: var(--card-bg);
    padding: 60px 0;
    text-align: center;
}

.license-badge {
    max-width: 200px;
    margin: 30px auto;
}

.license-info {
    max-width: 700px;
    margin: 0 auto;
    color: var(--text-muted);
    line-height: 1.8;
}

/* 负责任博彩 */
.responsible-section {
    padding: 60px 0;
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(45, 27, 78, 0.5) 100%);
}

.responsible-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.responsible-content h2 {
    color: var(--warning-red);
    margin-bottom: 25px;
}

.responsible-content p {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.8;
}

.age-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    border: 3px solid var(--warning-red);
    border-radius: 50%;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--warning-red);
    margin: 20px 0;
}

/* 客户支持区块 */
.support-section {
    padding: 80px 0;
}

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

.support-card {
    background: var(--card-bg);
    padding: 35px;
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid rgba(212, 175, 55, 0.15);
    transition: var(--transition);
}

.support-card:hover {
    border-color: var(--primary-gold);
}

.support-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.support-card h3 {
    font-size: 1.2rem;
    color: var(--accent-gold);
    margin-bottom: 15px;
}

.support-card p {
    color: var(--text-muted);
}

/* 页脚 */
.site-footer {
    background: linear-gradient(180deg, var(--dark-bg) 0%, #050208 100%);
    padding: 60px 0 30px;
    border-top: 2px solid var(--primary-gold);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    font-size: 1.2rem;
    color: var(--primary-gold);
    margin-bottom: 20px;
    font-weight: 600;
}

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

.footer-col ul li {
    margin-bottom: 12px;
}

.footer-col ul li a {
    color: var(--text-muted);
    transition: var(--transition);
}

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

.footer-social {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.footer-social a {
    width: 45px;
    height: 45px;
    background: rgba(212, 175, 55, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-gold);
    font-size: 1.2rem;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--primary-gold);
    color: var(--primary-purple);
}

.footer-bottom {
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding-top: 30px;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 15px;
}

.footer-badges {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.footer-badges img {
    height: 50px;
    opacity: 0.8;
    transition: var(--transition);
}

.footer-badges img:hover {
    opacity: 1;
}

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

.page-title {
    font-size: 2.8rem;
    color: var(--primary-gold);
    margin-bottom: 15px;
}

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

/* 内容区域 */
.content-section {
    padding: 60px 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 50px;
}

.main-content {
    background: var(--card-bg);
    padding: 40px;
    border-radius: var(--border-radius);
}

.main-content h2 {
    font-size: 1.8rem;
    color: var(--primary-gold);
    margin: 30px 0 20px;
}

.main-content h2:first-child {
    margin-top: 0;
}

.main-content h3 {
    font-size: 1.4rem;
    color: var(--accent-gold);
    margin: 25px 0 15px;
}

.main-content p {
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.9;
}

.main-content ul,
.main-content ol {
    color: var(--text-muted);
    margin: 20px 0;
    padding-left: 25px;
}

.main-content li {
    margin-bottom: 10px;
    line-height: 1.7;
}

.main-content img {
    border-radius: var(--border-radius);
    margin: 25px 0;
}

/* 侧边栏 */
.sidebar {
    position: relative;
}

.sidebar-widget {
    background: var(--card-bg);
    padding: 30px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
    border: 1px solid rgba(212, 175, 55, 0.15);
}

.sidebar-widget h3 {
    font-size: 1.2rem;
    color: var(--primary-gold);
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.sidebar-widget ul {
    list-style: none;
}

.sidebar-widget ul li {
    margin-bottom: 12px;
}

.sidebar-widget ul li a {
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-widget ul li a:hover {
    color: var(--accent-gold);
}

/* 信息表格 */
.info-table {
    width: 100%;
    border-collapse: collapse;
    margin: 25px 0;
}

.info-table th,
.info-table td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(212, 175, 55, 0.15);
}

.info-table th {
    background: rgba(212, 175, 55, 0.1);
    color: var(--primary-gold);
    font-weight: 600;
}

.info-table td {
    color: var(--text-muted);
}

/* 作者信息框 */
.author-box {
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(74, 44, 122, 0.3) 100%);
    padding: 30px;
    border-radius: var(--border-radius);
    margin: 40px 0;
    display: flex;
    gap: 25px;
    align-items: flex-start;
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.author-avatar {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: var(--gradient-gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-purple);
    flex-shrink: 0;
}

.author-info h4 {
    font-size: 1.3rem;
    color: var(--accent-gold);
    margin-bottom: 8px;
}

.author-title {
    font-size: 0.95rem;
    color: var(--primary-gold);
    margin-bottom: 15px;
}

.author-bio {
    color: var(--text-muted);
    line-height: 1.8;
}

/* 响应式设计 */
@media (max-width: 1200px) {
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        display: grid;
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: 20px;
    }
}

@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: flex;
    }
    
    .main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark-bg);
        padding: 20px;
        display: none;
        border-top: 1px solid var(--primary-gold);
    }
    
    .main-nav.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        gap: 5px;
    }
    
    .nav-list li a {
        padding: 15px;
        border-radius: 8px;
    }
    
    .hero-section {
        min-height: 500px;
        padding: 40px 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .main-content {
        padding: 25px;
    }
    
    .author-box {
        flex-direction: column;
        text-align: center;
    }
    
    .author-avatar {
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero-content {
        padding: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn-cta {
        width: 100%;
        text-align: center;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .feature-box {
        padding: 30px 20px;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    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: linear-gradient(90deg, var(--card-bg) 25%, rgba(74, 44, 122, 0.3) 50%, var(--card-bg) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* 打印样式 */
@media print {
    .site-header,
    .site-footer,
    .btn-cta,
    .sidebar {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .main-content {
        background: white;
        box-shadow: none;
    }
}