/* 789WIN - 永恒金爵风格 (Eternal Golden Goblet) */
/* 核心理念：复刻蒙特卡洛赌场的经典与尊贵，营造一种永不过时的精英俱乐部氛围 */

/* CSS变量定义 - 永恒金爵色彩搭配 */
:root {
    /* 主色调：哑光黑、深炭灰 */
    --primary-black: #1a1a1a;
    --charcoal-gray: #2d2d2d;
    --dark-gray: #404040;
    --medium-gray: #666666;
    --light-gray: #999999;

    /* 点缀色：香槟金、黄铜色 */
    --champagne-gold: #d4af37;
    --brass-accent: #b8860b;
    --gold-highlight: #ffd700;
    --bronze-shadow: #8b7355;

    /* 辅助色：象牙白、米白 */
    --ivory-white: #fffff0;
    --cream-white: #f5f5dc;
    --off-white: #fafafa;

    /* 功能色 */
    --success-green: #2d5a27;
    --warning-orange: #b8860b;
    --error-red: #8b0000;
    --info-blue: #1e3a8a;

    /* 阴影和光效 */
    --gold-glow: 0 0 20px rgba(212, 175, 55, 0.3);
    --soft-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    --deep-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
    --inset-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.3);

    /* 字体 */
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Lato', sans-serif;
    --font-accent: 'Raleway', sans-serif;

    /* 间距系统 */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;

    /* 边框半径 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;

    /* 过渡效果 */
    --transition-fast: 0.2s ease-in-out;
    --transition-medium: 0.4s ease-in-out;
    --transition-slow: 0.6s ease-in-out;
}

/* Age Warning Banner - YMYL Compliance */
.age-warning-banner {
    background: linear-gradient(90deg, #8b0000 0%, #dc143c 100%);
    color: white;
    padding: 10px 0;
    position: sticky;
    top: 80px; /* 粘在header下面 */
    z-index: 500;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 215, 0, 0.5);
}

.warning-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    padding: 0 15px;
}

@media (max-width: 768px) {
    .age-warning-banner {
        padding: 8px 10px;
        font-size: 11px;
        line-height: 1.3;
    }

    .warning-content {
        gap: 8px;
        text-align: center;
        flex-direction: column;
    }

    .warning-icon {
        display: none;
    }

    .warning-text {
        flex: 1;
        min-width: 200px;
        margin: 0;
    }

    .warning-hotline {
        padding: 2px 8px;
        font-size: 10px;
        border-radius: 12px;
    }
}

.warning-icon {
    font-size: 20px;
    animation: pulse 2s infinite;
}

.warning-hotline {
    background: rgba(255, 255, 255, 0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-weight: 600;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* Trust Badges and Certifications */
.trust-badges {
    background: var(--charcoal-gray);
    padding: var(--spacing-md) 0;
    border-top: 1px solid var(--champagne-gold);
}

@media (max-width: 768px) {
    .trust-badges {
        padding: var(--spacing-sm) 0;
        display: none; /* Hide on mobile to save space */
    }
}

.trust-badges-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.trust-badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--ivory-white);
    font-size: 14px;
    opacity: 0.9;
}

.trust-badge img {
    height: 30px;
    width: auto;
}

/* Expert Author Section */
.expert-author {
    background: rgba(212, 175, 55, 0.05);
    border-left: 4px solid var(--champagne-gold);
    padding: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    border-radius: var(--radius-md);
}

.expert-author-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.expert-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: 2px solid var(--champagne-gold);
}

.expert-info h4 {
    color: var(--champagne-gold);
    font-size: 16px;
    margin-bottom: 4px;
}

.expert-info p {
    font-size: 14px;
    color: var(--light-gray);
}

.expert-credentials {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-sm);
}

.credential-badge {
    background: rgba(212, 175, 55, 0.2);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    color: var(--champagne-gold);
    border: 1px solid var(--champagne-gold);
}

/* 全局重置和基础样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-body);
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--charcoal-gray) 100%);
    color: var(--ivory-white);
    line-height: 1.6;
    overflow-x: hidden;
    padding-top: 80px; /* 只需要header的高度 */
}

@media (max-width: 768px) {
    body {
        padding-top: 50px; /* 移动端只需要header的高度 */
    }
}

/* 容器系统 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

/* 网格系统 */
.grid {
    display: grid;
    gap: var(--spacing-lg);
    align-items: start;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* 响应式网格 */
@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Header样式 */
.header {
    background: linear-gradient(180deg, var(--primary-black) 0%, rgba(26, 26, 26, 0.95) 100%);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--deep-shadow);
    border-bottom: 1px solid var(--champagne-gold);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    height: 80px;
    box-sizing: border-box;
}

.logo {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--champagne-gold);
    text-decoration: none;
    text-shadow: var(--gold-glow);
    transition: var(--transition-fast);
}

.logo:hover {
    color: var(--gold-highlight);
    transform: scale(1.05);
}

/* 导航菜单 */
.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--ivory-white);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    transition: var(--transition-fast);
    white-space: nowrap;
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link.active {
    color: var(--champagne-gold);
    background: rgba(212, 175, 55, 0.1);
    box-shadow: var(--gold-glow);
}

/* 下拉菜单 */
.nav-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--charcoal-gray);
    border: 1px solid var(--champagne-gold);
    border-radius: var(--radius-md);
    box-shadow: var(--deep-shadow);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
    min-width: 200px;
    z-index: 1001;
}

.nav-item:hover .nav-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-dropdown .nav-link {
    display: block;
    padding: var(--spacing-sm);
    border-radius: 0;
}

.nav-dropdown .nav-link:hover {
    background: var(--champagne-gold);
    color: var(--primary-black);
}

/* CTA按钮 */
.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-body);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
    font-size: 0.95rem;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-medium);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--champagne-gold) 0%, var(--brass-accent) 100%);
    color: var(--primary-black);
    box-shadow: var(--gold-glow);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--gold-highlight) 0%, var(--champagne-gold) 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(212, 175, 55, 0.4);
}

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

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

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

.btn-outline:hover {
    background: var(--ivory-white);
    color: var(--primary-black);
}

/* Hero区域 */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: var(--primary-black);
}

.hero-background {
    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, 26, 26, 0.8) 0%, rgba(45, 45, 45, 0.7) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-xl);
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-md);
    text-shadow: var(--deep-shadow);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    color: var(--ivory-white);
    margin-bottom: var(--spacing-xl);
    font-weight: 300;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* 内容区域样式 */
.content-section {
    padding: var(--spacing-xxl) 0;
    position: relative;
}

.content-section:nth-child(even) {
    background: linear-gradient(135deg, var(--charcoal-gray) 0%, var(--dark-gray) 100%);
}

.content-block {
    display: grid;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-xxl);
}

.content-block.horizontal {
    grid-template-columns: 1fr 1fr;
}

.content-block.vertical {
    grid-template-columns: 1fr;
    text-align: center;
}

.content-block.reverse {
    direction: rtl;
}

.content-block.reverse > * {
    direction: ltr;
}

.content-image {
    position: relative;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--deep-shadow);
}

.content-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: var(--transition-medium);
}

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

.content-text h2,
.content-text h3 {
    font-family: var(--font-heading);
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.content-text h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.content-text h3 {
    font-size: clamp(1.4rem, 3vw, 2rem);
}

.content-text p {
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
    color: var(--cream-white);
}

/* 网格项目样式 */
.grid-item {
    background: linear-gradient(135deg, var(--charcoal-gray) 0%, var(--dark-gray) 100%);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--soft-shadow);
    transition: var(--transition-medium);
    border: 1px solid rgba(212, 175, 55, 0.2);
    position: relative;
    overflow: hidden;
}

.grid-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--champagne-gold) 0%, var(--brass-accent) 100%);
    transform: scaleX(0);
    transform-origin: left;
    transition: var(--transition-medium);
}

.grid-item:hover::before {
    transform: scaleX(1);
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--deep-shadow);
    border-color: var(--champagne-gold);
}

.grid-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.grid-item h3 {
    font-family: var(--font-heading);
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-sm);
    font-size: 1.3rem;
}

.grid-item p {
    color: var(--cream-white);
    line-height: 1.6;
}

/* 页面标题样式 */
.page-header {
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--charcoal-gray) 100%);
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-bottom: 2px solid var(--champagne-gold);
}

.page-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 5vw, 3rem);
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-sm);
}

.page-subtitle {
    font-size: 1.2rem;
    color: var(--ivory-white);
    opacity: 0.8;
}

/* 面包屑导航 */
.breadcrumb {
    padding: var(--spacing-md) 0;
    background: rgba(45, 45, 45, 0.5);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    gap: var(--spacing-xs);
    align-items: center;
    flex-wrap: wrap;
}

.breadcrumb-item {
    color: var(--ivory-white);
    opacity: 0.7;
}

.breadcrumb-item:not(:last-child)::after {
    content: '>';
    margin-left: var(--spacing-xs);
    color: var(--champagne-gold);
}

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

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

.breadcrumb-item.active {
    color: var(--champagne-gold);
    font-weight: 500;
}

/* 侧边栏样式 */
.sidebar {
    background: var(--charcoal-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--soft-shadow);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.sidebar h3 {
    font-family: var(--font-heading);
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
}

.sidebar ul {
    list-style: none;
}

.sidebar ul li {
    margin-bottom: var(--spacing-sm);
}

.sidebar ul li a {
    color: var(--ivory-white);
    text-decoration: none;
    transition: var(--transition-fast);
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.sidebar ul li a:hover {
    color: var(--champagne-gold);
    background: rgba(212, 175, 55, 0.1);
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--charcoal-gray);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--soft-shadow);
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

.table th {
    background: var(--primary-black);
    color: var(--champagne-gold);
    font-weight: 600;
}

.table td {
    color: var(--ivory-white);
}

.table tr:hover {
    background: rgba(212, 175, 55, 0.1);
}

/* 表单样式 */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 2px solid var(--dark-gray);
    border-radius: var(--radius-md);
    background: var(--charcoal-gray);
    color: var(--ivory-white);
    font-family: var(--font-body);
    transition: var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--champagne-gold);
    box-shadow: var(--gold-glow);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* 模态框样式 */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-medium);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--charcoal-gray);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    max-width: 500px;
    width: 90%;
    border: 2px solid var(--champagne-gold);
    box-shadow: var(--deep-shadow);
    transform: scale(0.9);
    transition: var(--transition-medium);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    margin-bottom: var(--spacing-lg);
}

.modal-title {
    font-family: var(--font-heading);
    color: var(--champagne-gold);
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.modal-close {
    position: absolute;
    top: var(--spacing-sm);
    right: var(--spacing-sm);
    background: none;
    border: none;
    color: var(--champagne-gold);
    font-size: 1.5rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.modal-close:hover {
    color: var(--gold-highlight);
}

/* Footer样式 */
.footer {
    background: linear-gradient(135deg, var(--primary-black) 0%, var(--charcoal-gray) 100%);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
    border-top: 1px solid var(--champagne-gold);
    margin-top: var(--spacing-xxl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
    font-family: var(--font-heading);
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-md);
    font-size: 1.3rem;
}

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

.footer-section ul li {
    margin-bottom: var(--spacing-xs);
}

.footer-section ul li a {
    color: var(--cream-white);
    text-decoration: none;
    transition: var(--transition-fast);
}

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

.payment-methods {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
    margin-top: var(--spacing-md);
}

.payment-methods img {
    height: 40px;
    width: auto;
    border-radius: var(--radius-sm);
    opacity: 0.8;
    transition: var(--transition-fast);
}

.payment-methods img:hover {
    opacity: 1;
    transform: scale(1.1);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--dark-gray);
    color: var(--light-gray);
    font-size: 0.9rem;
}

/* 手机菜单 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--champagne-gold);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--spacing-xs);
}

/* 响应式设计 */
@media (max-width: 768px) {
    body {
        padding-top: 0;
    }

    .header {
        height: 50px;
        padding: 0;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 9998;
    }

    .header-content {
        padding: 0 var(--spacing-sm);
        min-height: 50px;
        height: 50px;
        justify-content: space-between;
        align-items: center;
    }

    .logo img {
        height: 30px !important;
    }

    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 3px;
        background: rgba(45, 45, 45, 0.8);
        border: 1px solid rgba(212, 175, 55, 0.3);
        border-radius: var(--radius-sm);
        color: var(--champagne-gold);
        cursor: pointer;
        z-index: 10001;
        position: relative;
        padding: 6px;
        z-index: 1001;
        width: 36px;
        height: 36px;
        transition: all 0.3s ease;
    }

    .mobile-menu-toggle:hover {
        background: rgba(212, 175, 55, 0.1);
        border-color: var(--champagne-gold);
        box-shadow: var(--gold-glow);
    }

    .mobile-menu-toggle span {
        width: 18px;
        height: 2px;
        background: var(--champagne-gold);
        transition: all 0.3s ease;
        display: block;
        border-radius: 1px;
    }

    .mobile-menu-toggle.active {
        background: rgba(212, 175, 55, 0.2);
        border-color: var(--champagne-gold);
        box-shadow: var(--gold-glow);
    }

    .mobile-menu-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(4px, 4px);
    }

    .mobile-menu-toggle.active span:nth-child(2) {
        opacity: 0;
        transform: scale(0);
    }

    .mobile-menu-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(4px, -4px);
    }

    .nav {
        position: fixed;
        top: 50px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 50px);
        background: linear-gradient(135deg, var(--primary-black) 0%, var(--charcoal-gray) 100%);
        z-index: 999;
        border-top: 1px solid var(--champagne-gold);
        transition: var(--transition-medium);
        overflow-y: auto;
        overflow-x: hidden;
        z-index: 9997;
        box-shadow: var(--deep-shadow);
        display: flex;
        flex-direction: column;
    }

    .nav.active {
        left: 0;
    }

    .nav-menu {
        flex-direction: column;
        padding: var(--spacing-sm);
        gap: 0;
        width: 100%;
        margin: 0;
        flex: 1;
        overflow-y: auto;
    }

    .nav-item {
        width: 100%;
        margin-bottom: 4px;
    }

    .nav-link {
        display: block;
        padding: 12px 16px;
        border-radius: var(--radius-md);
        border: 1px solid rgba(212, 175, 55, 0.15);
        text-align: left;
        background: rgba(45, 45, 45, 0.5);
        transition: all 0.3s ease;
        font-weight: 500;
        font-size: 14px;
        position: relative;
        overflow: hidden;
    }

    .nav-link:hover {
        background: rgba(212, 175, 55, 0.1);
        border-color: var(--champagne-gold);
        transform: translateX(5px);
    }

    .nav-link::before {
        content: '';
        position: absolute;
        left: 0;
        top: 0;
        width: 3px;
        height: 100%;
        background: var(--champagne-gold);
        opacity: 0;
        transition: opacity 0.3s ease;
    }

    .nav-link:hover::before {
        opacity: 1;
    }

    .nav-dropdown {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(26, 26, 26, 0.8);
        margin-top: var(--spacing-xs);
        border-radius: var(--radius-md);
        border: 1px solid rgba(212, 175, 55, 0.1);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease;
    }

    .nav-item.active .nav-dropdown {
        max-height: 300px;
        padding: var(--spacing-sm) 0;
    }

    .nav-dropdown .nav-link {
        margin: 0 var(--spacing-xs);
        padding: 10px 14px;
        font-size: 13px;
        background: rgba(64, 64, 64, 0.3);
        border-color: rgba(212, 175, 55, 0.1);
    }

    .nav-dropdown .nav-link:hover {
        background: rgba(212, 175, 55, 0.15);
        transform: translateX(10px);
    }

    .nav-item:hover .nav-dropdown {
        display: none;
    }

    .nav-item.active .nav-dropdown {
        display: block;
    }

    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-top: auto;
        width: 100%;
        padding: var(--spacing-md) var(--spacing-lg);
        border-top: 1px solid rgba(212, 175, 55, 0.2);
        background: rgba(26, 26, 26, 0.8);
        position: sticky;
        bottom: 0;
    }

    .cta-buttons .btn {
        width: 100%;
        text-align: center;
        padding: var(--spacing-md);
        font-size: 1rem;
        font-weight: 600;
    }

    .content-block.horizontal {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-content {
        padding: var(--spacing-lg);
    }

    .page-header {
        padding: var(--spacing-lg) 0;
    }

    .table {
        font-size: 0.9rem;
    }

    .table th,
    .table td {
        padding: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    .content-section {
        padding: var(--spacing-xl) 0;
    }

    .grid-item {
        padding: var(--spacing-md);
    }

    .modal-content {
        padding: var(--spacing-lg);
        margin: var(--spacing-md);
    }
}

/* 特殊效果 */
.shimmer {
    background: linear-gradient(45deg, transparent 30%, rgba(212, 175, 55, 0.3) 50%, transparent 70%);
    background-size: 200% 200%;
    animation: shimmer 2s infinite;
}

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(212, 175, 55, 0.3);
    border-radius: 50%;
    border-top-color: var(--champagne-gold);
    animation: spin 1s ease-in-out infinite;
}

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

/* 工具类 */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.visible { display: block; }

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

::-webkit-scrollbar-track {
    background: var(--charcoal-gray);
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--gold-highlight);
}

/* 选择文本样式 */
::selection {
    background: var(--champagne-gold);
    color: var(--primary-black);
}

/* 焦点样式 */
*:focus {
    outline: 2px solid var(--champagne-gold);
    outline-offset: 2px;
}

/* 打印样式 */
@media print {
    .header, .footer, .hero {
        display: none;
    }

    body {
        background: white;
        color: black;
    }
}

/* Responsible Gaming Footer */
.responsible-gaming-footer {
    background: linear-gradient(135deg, var(--charcoal-gray) 0%, var(--primary-black) 100%);
    padding: var(--spacing-xl) 0;
    border-top: 3px solid var(--champagne-gold);
    margin-top: var(--spacing-xxl);
}

.responsible-gaming-footer h3 {
    text-align: center;
    color: var(--champagne-gold);
    font-size: 1.8rem;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-heading);
}

.responsible-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.responsible-item {
    text-align: center;
    padding: var(--spacing-md);
    background: rgba(212, 175, 55, 0.05);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(212, 175, 55, 0.2);
}

.responsible-item h4 {
    color: var(--champagne-gold);
    margin-bottom: var(--spacing-sm);
    font-size: 1.1rem;
}

.responsible-item p {
    color: var(--light-gray);
    font-size: 0.9rem;
    line-height: 1.6;
}

.certification-logos {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(212, 175, 55, 0.2);
    color: var(--light-gray);
    font-size: 0.9rem;
}

.certification-logos span:first-child {
    display: block;
    margin-bottom: var(--spacing-sm);
    color: var(--champagne-gold);
    font-weight: 600;
}