/* 
 * c7娱乐 - 主样式表
 * 独特的紫金配色方案设计
 * 2026年SEO优化版本
 */

:root {
    --primary-purple: #4a1a6b;
    --secondary-purple: #6b2d9e;
    --accent-gold: #d4af37;
    --light-gold: #f4e4bc;
    --dark-bg: #1a0a2e;
    --card-bg: #2d1b4e;
    --text-light: #f5f5f5;
    --text-muted: #b8a8c8;
    --success-green: #28a745;
    --warning-red: #dc3545;
    --gradient-main: linear-gradient(135deg, var(--primary-purple) 0%, var(--secondary-purple) 100%);
    --gradient-gold: linear-gradient(135deg, var(--accent-gold) 0%, var(--light-gold) 50%, var(--accent-gold) 100%);
    --shadow-soft: 0 4px 20px rgba(74, 26, 107, 0.3);
    --shadow-gold: 0 4px 20px rgba(212, 175, 55, 0.3);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', 'Noto Sans SC', sans-serif;
    background: var(--dark-bg);
    color: var(--text-light);
    line-height: 1.8;
    min-height: 100vh;
}

/* 导航栏 - 非sticky */
.main-header {
    background: var(--gradient-main);
    padding: 0;
    border-bottom: 3px solid var(--accent-gold);
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

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

.logo-img {
    height: 50px;
    width: auto;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-cta {
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--primary-purple);
    padding: 12px 28px;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-gold);
}

.btn-secondary {
    background: transparent;
    color: var(--accent-gold);
    padding: 10px 24px;
    border: 2px solid var(--accent-gold);
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

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

/* 主导航 */
.main-nav {
    background: rgba(0, 0, 0, 0.2);
    padding: 0 5%;
}

.nav-list {
    display: flex;
    justify-content: center;
    list-style: none;
    max-width: 1400px;
    margin: 0 auto;
    gap: 5px;
}

.nav-list li a {
    display: block;
    padding: 15px 25px;
    color: var(--text-light);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.nav-list li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: var(--accent-gold);
    transition: var(--transition);
}

.nav-list li a:hover::after,
.nav-list li a.active::after {
    width: 80%;
}

.nav-list li a:hover {
    color: var(--accent-gold);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--accent-gold);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 10px;
}

/* Hero区域 */
.hero-section {
    position: relative;
    min-height: 500px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 10, 46, 0.9) 0%, rgba(74, 26, 107, 0.7) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 5%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero-text h1 {
    font-size: 2.8rem;
    margin-bottom: 20px;
    line-height: 1.3;
}

.hero-text h1 span {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 30px;
}

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

.hero-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.hero-feature-card {
    background: rgba(45, 27, 78, 0.8);
    padding: 25px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(212, 175, 55, 0.3);
    transition: var(--transition);
}

.hero-feature-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-gold);
}

.hero-feature-card h3 {
    color: var(--accent-gold);
    margin-bottom: 10px;
    font-size: 1.1rem;
}

/* 面包屑导航 */
.breadcrumb {
    background: rgba(0, 0, 0, 0.3);
    padding: 15px 5%;
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    max-width: 1400px;
    margin: 0 auto;
    gap: 10px;
    font-size: 0.9rem;
}

.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(--accent-gold);
    text-decoration: none;
}

.breadcrumb-list a:hover {
    text-decoration: underline;
}

/* 主内容区域 */
.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 5%;
}

/* 章节样式 */
.content-section {
    margin-bottom: 60px;
}

.section-header {
    text-align: center;
    margin-bottom: 40px;
}

.section-header h2 {
    font-size: 2rem;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: var(--gradient-gold);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
    max-width: 700px;
    margin: 20px auto 0;
}

/* 游戏卡片网格 */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.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);
}

.game-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-gold);
    border-color: var(--accent-gold);
}

.game-card-img {
    position: relative;
    height: 180px;
    overflow: hidden;
}

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

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

.game-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to top, rgba(26, 10, 46, 0.9) 0%, transparent 50%);
    display: flex;
    align-items: flex-end;
    padding: 15px;
    opacity: 0;
    transition: var(--transition);
}

.game-card:hover .game-card-overlay {
    opacity: 1;
}

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

.game-card-body h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--accent-gold);
}

.game-card-body p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 15px;
}

.game-rtp {
    display: inline-block;
    background: rgba(212, 175, 55, 0.2);
    color: var(--accent-gold);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

/* 特色区块 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-box {
    background: var(--card-bg);
    padding: 35px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
    border: 1px solid transparent;
}

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

.feature-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 20px;
    background: var(--gradient-gold);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

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

/* 支付方式 */
.payment-section {
    background: var(--card-bg);
    padding: 50px;
    border-radius: var(--border-radius);
}

.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.payment-item {
    background: rgba(0, 0, 0, 0.3);
    padding: 25px;
    border-radius: var(--border-radius);
    text-align: center;
    transition: var(--transition);
}

.payment-item:hover {
    background: rgba(212, 175, 55, 0.1);
}

.payment-item img {
    max-width: 120px;
    height: auto;
    margin-bottom: 15px;
}

.payment-item h4 {
    color: var(--accent-gold);
    margin-bottom: 10px;
}

/* 评论区 */
.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

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

.review-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 15px;
}

.reviewer-info h4 {
    color: var(--accent-gold);
    margin-bottom: 5px;
}

.reviewer-location {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.review-content {
    color: var(--text-light);
    font-style: italic;
    margin-bottom: 15px;
}

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

/* FAQ区域 */
.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: var(--card-bg);
    margin-bottom: 15px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 20px 25px;
    background: transparent;
    border: none;
    color: var(--text-light);
    font-size: 1.1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

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

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

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

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

.faq-answer-content {
    padding: 0 25px 25px;
    color: var(--text-muted);
}

/* 关于我们 */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
}

.about-content h3 {
    color: var(--accent-gold);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

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

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 30px;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-gold);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* 牌照区域 */
.license-section {
    background: var(--card-bg);
    padding: 50px;
    border-radius: var(--border-radius);
    text-align: center;
}

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

.license-badge img {
    width: 100%;
}

.license-info {
    max-width: 700px;
    margin: 0 auto;
}

.license-number {
    background: rgba(212, 175, 55, 0.2);
    padding: 15px 30px;
    border-radius: 30px;
    display: inline-block;
    color: var(--accent-gold);
    font-weight: 600;
    margin-top: 20px;
}

/* 负责任博彩 */
.responsible-gaming {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(74, 26, 107, 0.3) 100%);
    padding: 50px;
    border-radius: var(--border-radius);
    border: 1px solid rgba(220, 53, 69, 0.3);
}

.responsible-gaming h2 {
    color: var(--warning-red);
    margin-bottom: 20px;
}

.responsible-tools {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.tool-item {
    background: rgba(0, 0, 0, 0.3);
    padding: 20px;
    border-radius: var(--border-radius);
    text-align: center;
}

.tool-item h4 {
    color: var(--accent-gold);
    margin-bottom: 10px;
}

/* 页脚 */
.main-footer {
    background: linear-gradient(180deg, var(--primary-purple) 0%, #0d0518 100%);
    padding: 60px 5% 30px;
    border-top: 3px solid var(--accent-gold);
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-brand .logo-text {
    font-size: 1.8rem;
    margin-bottom: 20px;
    display: block;
}

.footer-brand p {
    color: var(--text-muted);
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-gold);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-column h4 {
    color: var(--accent-gold);
    margin-bottom: 20px;
    font-size: 1.1rem;
}

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

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

.footer-column ul li a {
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-bottom {
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    padding-top: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-badges {
    display: flex;
    gap: 20px;
    align-items: center;
}

.footer-badges img {
    height: 50px;
    width: auto;
}

.footer-legal {
    color: var(--text-muted);
    font-size: 0.9rem;
}

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

.payment-icons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.payment-icons img {
    height: 30px;
    width: auto;
    opacity: 0.8;
    transition: var(--transition);
}

.payment-icons img:hover {
    opacity: 1;
}

/* 内页样式 */
.page-header {
    background: var(--gradient-main);
    padding: 80px 5% 60px;
    text-align: center;
}

.page-header h1 {
    font-size: 2.5rem;
    margin-bottom: 15px;
}

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

.article-content {
    background: var(--card-bg);
    padding: 50px;
    border-radius: var(--border-radius);
    margin-bottom: 40px;
}

.article-content h2 {
    color: var(--accent-gold);
    margin: 30px 0 20px;
    font-size: 1.6rem;
}

.article-content h3 {
    color: var(--light-gold);
    margin: 25px 0 15px;
    font-size: 1.3rem;
}

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

.article-content ul,
.article-content ol {
    margin: 20px 0;
    padding-left: 30px;
    color: var(--text-muted);
}

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

.article-content img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    margin: 20px 0;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.article-content th,
.article-content td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.article-content th {
    background: rgba(212, 175, 55, 0.1);
    color: var(--accent-gold);
}

/* 作者信息 */
.author-box {
    background: rgba(0, 0, 0, 0.3);
    padding: 30px;
    border-radius: var(--border-radius);
    display: flex;
    gap: 25px;
    margin-top: 40px;
}

.author-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-gold);
}

.author-info h4 {
    color: var(--accent-gold);
    margin-bottom: 5px;
}

.author-title {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 10px;
}

.author-bio {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* 侧边栏 */
.content-with-sidebar {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 40px;
}

.sidebar {
    position: relative;
}

.sidebar-widget {
    background: var(--card-bg);
    padding: 25px;
    border-radius: var(--border-radius);
    margin-bottom: 30px;
}

.sidebar-widget h3 {
    color: var(--accent-gold);
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(212, 175, 55, 0.3);
}

.related-games {
    list-style: none;
}

.related-games li {
    margin-bottom: 15px;
}

.related-games li a {
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text-light);
    text-decoration: none;
    padding: 10px;
    border-radius: 8px;
    transition: var(--transition);
}

.related-games li a:hover {
    background: rgba(212, 175, 55, 0.1);
}

.related-games li a img {
    width: 60px;
    height: 45px;
    object-fit: cover;
    border-radius: 6px;
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-features {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .content-with-sidebar {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: -1;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    .header-top {
        flex-wrap: wrap;
        gap: 15px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .main-nav {
        display: none;
    }
    
    .main-nav.active {
        display: block;
    }
    
    .nav-list {
        flex-direction: column;
        padding: 20px 0;
    }
    
    .nav-list li a {
        padding: 12px 20px;
    }
    
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-features {
        grid-template-columns: 1fr 1fr;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .social-links {
        justify-content: center;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .payment-section,
    .article-content {
        padding: 30px 20px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .reviews-grid {
        grid-template-columns: 1fr;
    }
    
    .header-cta {
        width: 100%;
        justify-content: center;
    }
}

/* 动画效果 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    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(212, 175, 55, 0.1) 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 {
    .main-header,
    .main-footer,
    .btn-primary,
    .btn-secondary {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .article-content {
        background: white;
        box-shadow: none;
    }
}