/* 统一的响应式CSS样式 */

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

body {
    font-family: 'Arial', sans-serif;
    background-color: #f0f2f5;
    color: #333;
    line-height: 1.6;
}

/* 容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* 头部样式 */
.header {
    background-color: #333;
    color: white;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.5rem;
}

/* 导航样式 */
.nav {
    display: flex;
    gap: 1rem;
}

.nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.3s;
    font-size: 0.9rem;
}

.nav a:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* 卡片样式 */
.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: #4CAF50;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    background-color: #45a049;
}

.btn-secondary {
    background-color: #6c757d;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-danger {
    background-color: #dc3545;
}

.btn-danger:hover {
    background-color: #c82333;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #4CAF50;
    box-shadow: 0 0 0 0.2rem rgba(76, 175, 80, 0.25);
}

/* 广告样式 */
.ads-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.ad-card {
    background-color: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    text-align: center;
}

.ad-card img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 4px;
    margin-bottom: 1rem;
}

/* 特性卡片样式 */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.feature-card {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
}

/* 表格样式 */
.table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    background-color: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

.table th {
    background-color: #f8f9fa;
    font-weight: bold;
}

.table tr:hover {
    background-color: #f5f5f5;
}

/* 移动端适配 */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }
    
    .nav a {
        margin: 0;
        flex: 1 1 auto;
        text-align: center;
    }
    
    .container {
        padding: 0 0.5rem;
    }
    
    .card {
        padding: 1rem;
        margin-bottom: 1rem;
    }
    
    .ads-container {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .features {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .table {
        display: block;
        overflow-x: auto;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
    
    .btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 0.6rem;
        font-size: 0.9rem;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.3rem;
    }
}

/* 小屏移动端适配 */
@media (max-width: 480px) {
    .header h1 {
        font-size: 1.2rem;
    }
    
    .nav a {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    h1 {
        font-size: 1.5rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    h3 {
        font-size: 1.1rem;
    }
    
    .card {
        padding: 0.8rem;
    }
}

/* 页脚样式 */
.footer {
    background-color: #333;
    color: white;
    padding: 2rem;
    text-align: center;
    margin-top: 2rem;
}

/* 提现记录轮播样式 */
.withdrawal-carousel {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    margin: 2rem 0;
}

.carousel-container {
    position: relative;
    overflow: hidden;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease;
}

.carousel-item {
    flex: 0 0 auto;
    min-width: 250px;
    padding: 1rem;
    margin: 0 0.5rem;
    background-color: #f5f5f5;
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

@media (max-width: 768px) {
    .carousel-item {
        min-width: 200px;
        padding: 0.8rem;
        margin: 0 0.3rem;
    }
}

/* 英雄区样式 */
.hero {
    background-color: white;
    padding: 2rem;
    margin: 1rem 0;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    text-align: center;
}

@media (max-width: 768px) {
    .hero {
        padding: 1.5rem;
        margin: 0.5rem 0;
    }
}

/* 消息提示样式 */
.alert {
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 4px;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

.alert-error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-info {
    color: #0c5460;
    background-color: #d1ecf1;
    border-color: #bee5eb;
}

/* 加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top-color: #4CAF50;
    animation: spin 1s ease-in-out infinite;
}

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

/* 隐藏元素 */
.hidden {
    display: none;
}

/* 响应式图片 */
.img-responsive {
    max-width: 100%;
    height: auto;
}

/* 文本截断 */
.text-truncate {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* 清除浮动 */
.clearfix::after {
    content: "";
    display: table;
    clear: both;
}

/* 辅助类 */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mx-auto { margin-left: auto; margin-right: auto; }