/* 通用字体和背景 */
body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

/* 通用容器 */
.container,
.home-container,
.register-container,
.login-box {
    max-width: 1000px;
    margin: 30px auto;
    padding: 20px;
}

/* 卡片通用样式 */
.card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* 表格 */
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
th, td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}
th {
    background-color: #f8f9fa;
}
tr:hover {
    background-color: #f9f9f9;
}

/* 表单元素 */
input,
select,
textarea {
    width: 100%;
    padding: 8px;
    margin: 5px 0 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
}
input:focus,
select:focus,
textarea:focus {
    border-color: #1a73e8;
    outline: none;
}

/* 按钮样式 */
button {
    background-color: #1c69c1;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
button:hover:not([disabled]) {
    opacity: 0.8;
}
button.delete {
    background-color: #ff4444;
}
button[disabled] {
    background-color: #ccc;
    cursor: not-allowed;
}

/* 导航栏 */
.nav-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding: 15px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.nav-title {
    font-size: 24px;
    color: #1a73e8;
}
.nav-links a,
.nav-links button {
    margin-left: 20px;
    color: white;
    background-color: #1c69c1;
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
}
.nav-links button:hover {
    opacity: 0.85;
}

/* 信息展示卡片 */
.profile-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}
.info-item {
    padding: 15px;
    border-bottom: 1px solid #eee;
}
.info-label {
    color: #5f6368;
    font-weight: 500;
    margin-bottom: 8px;
}
.info-value {
    color: #202124;
    font-size: 16px;
}

/* 性别选择布局 */
.gender-group {
    display: flex;
    gap: 20px;
    align-items: center;
}
.gender-radio {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 消息提示 */
.message {
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
    text-align: center;
}
.message.success {
    background-color: #dff0d8;
    color: #3c763d;
}
.message.error {
    background-color: #f2dede;
    color: #a94442;
}

/* 链接样式 */
.register-link,
.nav-links {
    text-align: center;
    margin-top: 15px;
}
.register-link a,
.nav-links a {
    color: #1a73e8;
    text-decoration: none;
}
.register-link a:hover,
.nav-links a:hover {
    text-decoration: underline;
}