/* 全局样式 新三匠文献平台 */
:root {
    --main-color: #5D4037;
    --bg-color: #F5F5DC;
    --assist-gray: #E8E8E8;
    --gold: #C9A961;
    --success: #2E7D32;
    --error: #C62828;
    --text-main: #333;
    --text-second: #666;
    --text-light: #999;
}
* {margin:0;padding:0;box-sizing: border-box;}
body {
    font-family: "思源黑体", "Microsoft YaHei", sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.8;
}
h1,h2,h3,h4 {
    font-family: "思源宋体", serif;
    color: var(--main-color);
}
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px 0;
}
/* 导航栏 */
.nav {
    background-color: var(--main-color);
    padding: 15px 0;
}
.nav .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.nav-logo {
    font-size: 24px;
    color: #fff;
    font-weight: bold;
}
.nav-menu a {
    color: #fff;
    text-decoration: none;
    margin-left: 25px;
    font-size: 16px;
}
.nav-menu a:hover {
    color: var(--gold);
}
/* 按钮 */
.btn {
    padding: 8px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: all 0.25s ease;
}
.btn-gold {
    background-color: var(--gold);
    color: #fff;
}
.btn-gold:hover {
    transform: scale(1.02);
}
.btn-main {
    background-color: var(--main-color);
    color: #fff;
}
/* 卡片布局 */
.card-list {
    display: grid;
    grid-template-columns: repeat(3,1fr);
    gap: 25px;
    margin-top: 30px;
}
.card {
    background: #fff;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    margin-bottom: 10px;
}
/* 表单 */
.form-box {
    width: 500px;
    margin: 50px auto;
    background: #fff;
    padding: 30px;
    border-radius: 8px;
}
.form-item {
    margin: 15px 0;
}
.form-item label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-second);
}
.form-item input,.form-item textarea,.form-item select {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--assist-gray);
    border-radius: 4px;
    font-size: 16px;
}
/* 响应式 移动端 */
@media (max-width:768px) {
    .card-list {
        grid-template-columns: 1fr;
    }
    .form-box {
        width: 95%;
    }
    .nav-menu {
        display: none;
    }
}
@media (min-width:768px) and (max-width:1023px) {
    .card-list {
        grid-template-columns: repeat(2,1fr);
    }
}
/* 提示框 */
.tips {
    padding: 10px;
    border-radius: 4px;
    margin: 15px 0;
    display: none;
}
.success-tips {
    background: #e8f5e9;
    color: var(--success);
}
.error-tips {
    background: #ffebee;
    color: var(--error);
}