/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "Microsoft Yahei", sans-serif;
}

body {
    background-color: #f9f9f9;
    color: #333;
}

/* 头部样式 */
header {
    background-color: #fff;
    border-bottom: 1px solid #eee;
    padding: 15px 0;
}

.header-wrap {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo {
    font-size: 24px;
    color: #2196F3;
    font-weight: bold;
}

nav a {
    margin-left: 30px;
    text-decoration: none;
    color: #666;
    font-size: 16px;
}

nav a.active {
    color: #2196F3;
    font-weight: bold;
}

/* 轮播图样式 */
.banner {
    width: 100%;
    height: 500px;
    overflow: hidden;
}

.banner-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 作品列表样式 */
.photo-list {
    padding: 50px 0;
}

.container {
    width: 1200px;
    margin: 0 auto;
}

.title {
    font-size: 28px;
    text-align: center;
    margin-bottom: 40px;
    color: #333;
}

.photo-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.photo-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.photo-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.photo-info {
    padding: 15px;
}

.photo-title {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.photo-author {
    font-size: 14px;
    color: #999;
}

.no-photo {
    text-align: center;
    font-size: 16px;
    color: #999;
    padding: 50px 0;
}

/* 底部样式 */
footer {
    background-color: #333;
    color: #fff;
    padding: 30px 0;
    text-align: center;
}

.footer-wrap {
    width: 1200px;
    margin: 0 auto;
}

.footer-wrap p {
    margin-bottom: 10px;
    font-size: 14px;
}

/* 登录/注册样式 */
.login-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

.login-box {
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.1);
    width: 400px;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.form-item {
    margin-bottom: 20px;
}

.form-item label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: #666;
}

.form-item input, .form-item textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-btn {
    text-align: center;
    margin-top: 20px;
}

.form-btn button {
    padding: 10px 30px;
    background-color: #2196F3;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
}

.login-link {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: #666;
}

.login-link a {
    color: #2196F3;
    text-decoration: none;
}

/* 提示信息样式 */
.error-tip {
    background-color: #fef0f0;
    color: #f5222d;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

.success-tip {
    background-color: #f0f9ff;
    color: #1890ff;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    text-align: center;
}

/* 上传页面样式 */
.upload-wrap {
    padding: 50px 0;
}

.upload-box {
    width: 600px;
    margin: 0 auto;
    background-color: #fff;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 2px 16px rgba(0,0,0,0.1);
}

.upload-box h2 {
    text-align: center;
    margin-bottom: 30px;
    color: #333;
}

.tips {
    font-size: 12px;
    color: #999;
    margin-top: 5px;
}