/* 统一响应式样式 */

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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

/* 统一容器样式 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 响应式容器 */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }
}

/* 统一按钮样式 */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border: none;
    border-radius: 25px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
    min-width: 100px;
    touch-action: manipulation;
    text-decoration: none;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, #007bff, #0056b3);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 123, 255, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.btn:active {
    transform: translateY(0);
}

/* 统一输入框样式 */
.input {
    padding: 12px 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    font-size: 16px;
    outline: none;
    transition: all 0.3s ease;
    min-height: 48px;
    touch-action: manipulation;
    background: rgba(255, 255, 255, 0.9);
    color: #333;
}

.input:focus {
    border-color: #007bff;
    box-shadow: 0 0 15px rgba(0, 123, 255, 0.3);
    background: #fff;
}

/* 统一卡片样式 */
.card {
    background: white;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    padding: 20px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* 统一链接样式 */
.link {
    display: block;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    padding: 10px 0;
    touch-action: manipulation;
}

.link:hover {
    color: #007bff;
    transform: translateX(5px);
}

/* 统一标题样式 */
h1, h2, h3, h4, h5, h6 {
    color: #333;
    margin-bottom: 15px;
    line-height: 1.3;
}

h1 {
    font-size: 24px;
}

h2 {
    font-size: 20px;
}

h3 {
    font-size: 18px;
}

/* 响应式字体 */
@media (max-width: 768px) {
    h1 {
        font-size: 20px;
    }
    
    h2 {
        font-size: 18px;
    }
    
    h3 {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 18px;
    }
    
    h2 {
        font-size: 16px;
    }
    
    h3 {
        font-size: 14px;
    }
}

/* 统一表单样式 */
.form {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
}

.form-group {
    margin-bottom: 15px;
}

.form-label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
}

/* 统一网格布局 */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

@media (max-width: 768px) {
    .grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

@media (max-width: 480px) {
    .grid {
        grid-template-columns: 1fr;
    }
}

/* 统一加载动画 */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(0, 123, 255, 0.3);
    border-radius: 50%;
    border-top-color: #007bff;
    animation: spin 1s ease-in-out infinite;
}

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

/* 统一提示框样式 */
.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.alert-success {
    background: rgba(76, 175, 80, 0.1);
    color: #4CAF50;
    border-left: 4px solid #4CAF50;
}

.alert-info {
    background: rgba(0, 123, 255, 0.1);
    color: #007bff;
    border-left: 4px solid #007bff;
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    color: #ffc107;
    border-left: 4px solid #ffc107;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    border-left: 4px solid #dc3545;
}

/* 移动端触摸优化 */
@media (hover: none) and (pointer: coarse) {
    .btn {
        padding: 14px 30px;
        font-size: 16px;
    }
    
    .input {
        padding: 14px 20px;
        font-size: 16px;
    }
    
    .card {
        padding: 15px;
    }
}

/* 深色模式支持 */
@media (prefers-color-scheme: dark) {
    body {
        background-color: #1a1a1a;
        color: #f5f5f5;
    }
    
    .card {
        background: #2d2d2d;
        color: #f5f5f5;
    }
    
    .input {
        background: rgba(255, 255, 255, 0.1);
        color: #f5f5f5;
        border-color: rgba(255, 255, 255, 0.2);
    }
    
    h1, h2, h3, h4, h5, h6 {
        color: #f5f5f5;
    }
    
    .link {
        color: #f5f5f5;
    }
    
    .link:hover {
        color: #007bff;
    }
}

/* 无障碍支持 */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* 打印样式 */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .container {
        width: 100%;
        padding: 0;
    }
    
    .btn {
        display: none;
    }
}