/* 基础样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: white;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 导航栏 */
.navbar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 70px;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
}

.nav-logo a {
    color: white;
    text-decoration: none;
    font-size: 24px;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 10px;
}

.nav-logo i {
    font-size: 28px;
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    border-radius: 25px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.nav-link:hover,
.nav-link.active {
    background: rgba(255,255,255,0.2);
    transform: translateY(-2px);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

.guest-actions {
    display: flex;
    gap: 10px;
}

.user-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    color: white;
}

.username {
    font-weight: bold;
    font-size: 14px;
}

.balance {
    font-size: 12px;
    opacity: 0.8;
}

.user-menu {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    min-width: 200px;
    padding: 10px 0;
    display: none;
    z-index: 1001;
}

.dropdown-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    color: #333;
    text-decoration: none;
    transition: background 0.3s ease;
}

.dropdown-menu a:hover {
    background: #f8f9fa;
}

.dropdown-menu hr {
    border: none;
    border-top: 1px solid #eee;
    margin: 5px 0;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

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

.btn-outline:hover {
    background: white;
    color: #667eea;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* 主要内容区域 */
.main-content {
    margin-top: 0px;
}

/* 轮播图区域 */
.hero-section {
    position: relative;
    height: 500px;
    overflow: hidden;
}

.hero-slider {
    position: relative;
    height: 100%;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.slide.active {
    opacity: 1;
}

.slide-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    filter: brightness(0.7);
}

.slide-content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    padding: 0 20px;
}

.slide-content h1 {
    font-size: 48px;
    margin-bottom: 20px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.slide-content p {
    font-size: 20px;
    margin-bottom: 30px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.slider-controls {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 3;
}

.slider-btn {
    background: rgba(255,255,255,0.2);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background: rgba(255,255,255,0.3);
}

.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    z-index: 3;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: white;
}

/* 游戏分类 */
.game-categories {
    padding: 80px 0;
    background: white;
}

.section-title {
    text-align: center;
    font-size: 36px;
    margin-bottom: 50px;
    color: #333;
}

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

.category-card {
    background: white;
    border-radius: 15px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.category-card h3 {
    font-size: 20px;
    margin-bottom: 10px;
    color: #333;
}

.category-card p {
    color: #666;
    font-size: 14px;
}

/* 热门游戏 */
.popular-games {
    padding: 80px 0;
    background: #f8f9fa;
}

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

.game-card {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    cursor: pointer;
}

.game-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.2);
}

.game-image {
    width: 100%;
    height: 150px;
    background-size: cover;
    background-position: center;
}

.game-info {
    padding: 20px;
}

.game-title {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 10px;
    color: #333;
}

.game-description {
    color: #666;
    font-size: 14px;
    margin-bottom: 15px;
}

.game-actions {
    display: flex;
    gap: 10px;
}

/* 优惠活动 */
.promotions {
    padding: 80px 0;
    background: white;
}

.promotions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.promotion-card {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 15px;
    padding: 30px;
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.promotion-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255,255,255,0.2);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: bold;
}

.promotion-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
}

.promotion-card p {
    margin-bottom: 20px;
    opacity: 0.9;
}

/* 页脚 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 50px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    margin-bottom: 20px;
    color: #ecf0f1;
}

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

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

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #34495e;
    color: #bdc3c7;
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal.show {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 20px 30px;
    border-bottom: 1px solid #eee;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: #333;
}

.modal-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: #999;
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 30px;
}

.modal-footer {
    text-align: center;
    margin-top: 20px;
}

.modal-footer a {
    color: #667eea;
    text-decoration: none;
}

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

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #333;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e5e9;
    border-radius: 8px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    margin: 0;
}

/* 加载提示 */
.loading {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.9);
    z-index: 3000;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.loading.show {
    display: flex;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 消息提示 */
.toast {
    position: fixed;
    top: 100px;
    right: 20px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    padding: 15px 20px;
    z-index: 4000;
    transform: translateX(400px);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast-icon {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 12px;
}

.toast.success .toast-icon {
    background: #28a745;
}

.toast.error .toast-icon {
    background: #dc3545;
}

.toast.warning .toast-icon {
    background: #ffc107;
}

.toast.info .toast-icon {
    background: #17a2b8;
}

/* 响应式设计 */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #667eea;
        flex-direction: column;
        padding: 20px;
        box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    }

    .nav-menu.active {
        display: flex;
    }

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

    .slide-content h1 {
        font-size: 32px;
    }

    .slide-content p {
        font-size: 16px;
    }

    .categories-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 20px;
    }

    .games-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 20px;
    }

    .promotions-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .modal-content {
        width: 95%;
        margin: 20px;
    }

    .modal-body {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 15px;
    }

    .container {
        padding: 0 15px;
    }

    .hero-section {
        height: 400px;
    }

    .slide-content h1 {
        font-size: 24px;
    }

    .slide-content p {
        font-size: 14px;
    }

    .section-title {
        font-size: 28px;
    }

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

    .category-card {
        padding: 20px 15px;
    }

    .category-icon {
        width: 60px;
        height: 60px;
        font-size: 24px;
    }
}

/* 页面基础样式 */
.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: calc(100vh - 120px);
}

.page-title {
    font-size: 32px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 30px;
    background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.content-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 40px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.content-card h2 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #4ecdc4;
}

.content-card p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* 移动端页面样式 */
@media (max-width: 768px) {
    .page-container {
        padding: 15px;
    }
    
    .page-title {
        font-size: 24px;
        margin-bottom: 20px;
    }
    
    .content-card {
        padding: 30px 20px;
    }
    
    .content-card h2 {
        font-size: 20px;
    }
    
    .content-card p {
        font-size: 14px;
    }
}