/* 全局样式重置与基础配置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Tailwind 自定义工具类 */
@layer utilities {
    .content-auto {
        content-visibility: auto;
    }
    .text-shadow {
        text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
    }
    .hover-lift {
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .hover-lift:hover {
        transform: translateY(-5px);
        box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    }
    /* 列表项前置圆点（无需单独类） */
    li::before {
        content: "·";
        display: inline-block;
        margin-right: 0.5rem;
        color: #C89446; /* 主题色圆点 */
        font-size: 1.5em;
        vertical-align: middle;
    }
    /* 取消圆点的类（按需使用） */
    li.no-dot::before {
        display: none;
    }
}

/* 全局通用样式 */
body {
    font-family: 'Poppins', sans-serif;
    color: #1A1A1A;
    line-height: 1.6;
    overflow-x: hidden;
}

/* 页面头部标题样式 */
.page-header {
    position: relative;
    padding: 24px 0;
    background-color: #2C3E50;
    color: white;
}

.page-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.2;
}

/* 表单样式 */
.form-group {
    margin-bottom: 1.5rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

/* 为表单元素添加默认边框 */
.form-control {
    border: 1px solid #ddd;
}

/* 聚焦状态样式 - 增强视觉反馈 */
.form-control:focus {
    outline: none;
    border-color: #C89446;
    box-shadow: 0 0 0 3px rgba(200, 148, 70, 0.1);
}

/* 按钮样式 */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 4px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #C89446;
    color: white;
}

.btn-primary:hover {
    background-color: #b0843d;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: transparent;
    border: 2px solid #C89446;
    color: #C89446;
}

.btn-outline:hover {
    background-color: #C89446;
    color: white;
}

/* 回到顶部按钮 */
#back-to-top {
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

#back-to-top.show {
    opacity: 1;
    visibility: visible;
}

/* 成功/错误提示框 */
.alert {
    padding: 1.5rem;
    border-radius: 4px;
    margin-bottom: 1.5rem;
    display: none; /* 默认隐藏 */
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}