/**
 * 通用样式 - 增强版
 * 
 * @package Caifu_Theme
 * @version 1.0.0
 */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 14px;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

a {
    color: #4CAF50;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #388E3C;
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

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

/* ==================== 文本对齐 ==================== */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

/* ==================== 显示/隐藏 ==================== */
.hide { display: none !important; }
.show { display: block !important; }

/* ==================== 边距工具类 ==================== */
/* 所有方向 */
.m-0 { margin: 0 !important; }
.m-5 { margin: 5px !important; }
.m-10 { margin: 10px !important; }
.m-15 { margin: 15px !important; }
.m-20 { margin: 20px !important; }

/* 上边距 */
.mt-0 { margin-top: 0 !important; }
.mt-5 { margin-top: 5px !important; }
.mt-10 { margin-top: 10px !important; }
.mt-15 { margin-top: 15px !important; }
.mt-20 { margin-top: 20px !important; }

/* 下边距 */
.mb-0 { margin-bottom: 0 !important; }
.mb-5 { margin-bottom: 5px !important; }
.mb-10 { margin-bottom: 10px !important; }
.mb-15 { margin-bottom: 15px !important; }
.mb-20 { margin-bottom: 20px !important; }

/* 左边距 */
.ml-0 { margin-left: 0 !important; }
.ml-5 { margin-left: 5px !important; }
.ml-10 { margin-left: 10px !important; }

/* 右边距 */
.mr-0 { margin-right: 0 !important; }
.mr-5 { margin-right: 5px !important; }
.mr-10 { margin-right: 10px !important; }

/* 内边距 */
.p-0 { padding: 0 !important; }
.p-5 { padding: 5px !important; }
.p-10 { padding: 10px !important; }
.p-15 { padding: 15px !important; }
.p-20 { padding: 20px !important; }

.pt-0 { padding-top: 0 !important; }
.pb-0 { padding-bottom: 0 !important; }
.pl-0 { padding-left: 0 !important; }
.pr-0 { padding-right: 0 !important; }

/* ==================== 响应式容器 ==================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

@media (max-width: 768px) {
    .container {
        padding: 0 12px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
}

/* ==================== 辅助类 ==================== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}